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Full text of "Title 24, Part 5, 2010 California Plumbing Code"

California 



Pltinibing 
Code 





California Code of Regulations 
Title 24, Part 5 ^ 



California Building 
Standards Commission 



Based on 2009 Uniform Plumbing dodfe^ 




EFFECTIVE 
January 1, 2011 ^i\ 

(For Errata and Supplements, See History Note Appendix)^ 



Copyright® to 2009 UPC® Held by 

International Association of Plumbing and Mechanical Officials 

5001 East Philadelphia Street 
Ontario, California 91761-2816 



Copyright® to all California State Provisions 
Held By 



California Building Standards Commission 

2525 Natomas Park Drive, Suite 130 
Sacramento, C A 95833-2936 



First Printing, July 1, 2010 
Printed in The United States 



2010 CALIFORNIA PLUMBING CODE 



PREFACE 

This document is the 5th of 12 Parts of the official triennial compilation and publication of the adoptions, amendments 
and repeal of administrative regulations to California Code of Regulations, Title 24, also referred to as the California Building 
Standards Code. Part 5 is known as the California Plumbing Code and incorporates, by adoption, the 2009 edition of the 
Uniform Plumbing Code of the International Association of Plumbing and Mechanical Officials with the California amend- 
ments. 

The California Building Standards Code is published in its entirety every three years by order of the California legislature, 
with supplements published in intervening years. The California legislature delegated authority to various State agen- 
cies, boards, commissions and departments to create building regulations to implement the State's statutes. These build- 
ing regulations or standards, have the same force of law, and take effect 180 days after their publication unless other- 
wise stipulated. The California Building Standards Code applies to occupancies in the State of California as annotated. 

A city, county, or city and county may establish more restrictive building standards reasonably necessary because of local 
climatic, geological or topographical conditions. Findings of the local condition(s) and the adopted local building stan- 
dard (s) must be filed with the California Building Standards Commission to become effective and may not be effective 
sooner than the effective date of this edition of California Building Standards Code. Local building standards that were 
adopted and applicable to previous editions of the California Building Standards Code do not apply to this edition with- 
out appropriate adoption and the required filing. 

To familiarize yourself with the format of this code, it is suggested that users review the following contents: 

• How To Distinguish Model Code Language From California Amendments 

• Matrix Adoption Tables 

Should you find publication (e.g., typographical) errors or inconsistencies in this code or wish to offer comments toward 
improving its format, please address your comments to: 

California Building Standards Commission 

2525 Natomas Park Drive, Suite 130 
Sacramento, CA 95833-2936 

Phone: (916)263-0916 
FAX: (916)263-0959 

Web Page: www.bsc.ca.gov 



2010 CALIFORNIA PLUMBING CODE 



ACKNOWLEDGEMENT 



The 2010 California Building Standards Code (Code) was developed through the outstanding collaborative efforts of the 
Department of Housing and Community Development, the Division of State Architect, the Office of the State Fire Marshal, 
the Office of Statewide Health Planning and Development, the Cahfomia Energy Commission, and the Building Standards 
Commission (Commission). 

This collaborative effort included the assistance of the Commission's Code Advisory Committees and many other volunteers 
that worked tirelessly to assist the Commission in the production of this Code. 

Governor Arnold Schwarzenegger 

Members of the Building Standards Commission 
Acting Secretary Tom Sheehy - Chair 
Is am Hasenin - Vice-Chair Christina Jamison 

James Barthman Stephen Jensen 

Craig Dailey Michael Paravagna 

Susan Dowty Richard Sawhill 

Tony Hoffman Steven Winkel 

David Walls - Executive Director 

Thomas Morrison - 

Deputy Executive Director 



For questions on California state agency amendments; please refer to the contact list on the following page. 



iv 2010 CALIFORNIA PLUMBING CODE 



California Code of Regulations Title 24 

California Agency Information Contact List 



California Energy Commission 

Energy Hotline (800)772-3300 

or (916) 654-5106 
Building Efficiency Standards 
Appliance Efficiency Standards 
Compliance Manual/Forms 

California State Lands Commission 

Marine Oil Terminals (562) 499-6317 

California State Library 

Resources and Information (916) 654-0261 

Government Publication Section (916) 654-0069 

Corrections Standards Authority 

Local Adult Jail Standards (916) 324-1914 

Local Juvenile Facility Standards (916) 324-1914 

Department of Consumer Affairs - 
Acupuncture Board 

Office Standards (916) 445-3021 

Department of Consumer Affairs - 
Board of Pharmacy 

Pharmacy Standards (916) 574-7900 

Department of Consumer Affairs - 
Bureau of Barbering and Cosmetolog y 

Barber and Beauty Shop and 

College Standards (916)574-7570 

(800)952-5210 

Department of Consumer Affairs - 

Bureau of Home Furnishings and Thermal Insulation 

Insulation Testing Standards (916) 574-2041 



Department of Consumer Affairs - 
Structural Pest Control Board 

Structural Standards 



,.(800)737-8188 
(916)561-8708 



Department of Consumer Affairs - 
Veterinary Medical Board 

Veterinary Hospital Standards (916) 263-2610 

Department of Food and Agriculture 

Meat & Poultry Packing Plant 

Standards (916)654-1447 

Dairy Standards (916) 654-1447 

Department of Public Health 

Organized Camps Standards (916) 449-5661 

Public Svi^imming Pools Standards (916) 449-5693 

Asbestos Standards (510)620-2874 



Department of Housing and Community Development 

Residential - Hotels, Motels, 

Apartments, Single-Family Dwellings ...(916) 445-9471 

Permanent Structures in Mobilehome 

and Special Occupancy Parks (916) 445-9471 

Factory-Built Housing, Manufactured 

Housing and Commercial Modular (916) 445-3338 

Mobile Homes - Permits & Inspections 

Northern Region (916) 255-2501 

Southern Region (951)782-4420 

Employee Housing Standards (916) 445-9471 

Department of Water Resources 

Gray Water Installations Standards (916) 651-9667 



Diyision of the State Architect - 
Access Compliance 

Access Compliance Standards. 



.(916)445-8100 



Diyision of the State Architect - 
Structural Safety 

Public Schools Standards (916) 445-8100 

Essential Services Building Standards ...(916) 445-8100 
Community College Standards (916) 445-8100 

Diyision of the State Architect - 
State Historical Building Safety Board 

Alternative Building Standards (916) 445-8100 

Office of Statewide Health Planning and Development 

Hospital Standards (916)440-8409 

Skilled Nursing Facility Standards (916) 440-8409 

Clinic Standards (916)440-8409 

Permits (916)440-8409 

Office of the State Fire Marshal 

Code Development and Analysis (916) 445-8200 

Fire Safety Standards (916) 445-8200 

Fireplace Standards (916)445-8200 

Day Care Centers Standards (916) 445-8200 

Exit Standards (916)445-8200 



Revised: February 24, 2010 



2010 CALIFORNIA PLUMBING CODE 



UPC FOREWORD 

Not Adopted by The State of California 

The advantages of a uniform plumbing code adopted by various local jurisdictions has long been recognized. Disorder in the 
industry as a result of widely divergent plumbing practices and the use of many different, often conflicting, plumbing codes 
by local jurisdictions influenced the Western Plumbing Officials Association (now the International Association of Plumbing 
and Mechanical Officials [lAPMO]) to form a committee of plumbing inspectors, master and journeyman plumbers, and san- 
itary and mechanical engineers, assisted by public utility companies and the plumbing industry to create a basic plumbing 
document for general use. The product of this effort, the first edition of the Uniform Plumbing Code® (UPC®) was officially 
adopted by lAPMO in 1945. The widespread use of this code over the past five decades by jurisdictions throughout the United 
States and internationally is testament to its merit. 

With the publication of the 2003 Edition of the Uniform Plumbing Code®, another significant milestone was reached. For the 
first time in the history of the United States, a plumbing code was developed through a true consensus process. The 2009 edi- 
tion represents the most current approaches in the plumbing field and is the second edition developed under the ANSI con- 
sensus process. Contributions to the content of the code were made by every segment of the built industry, including such 
diverse interests as consumers, enforcing authorities, installers/maintainers, insurance, labor, manufacturers, 
research/standards/testing laboratories, special experts, and users. 

The UPC is designed to provide consumers with safe and sanitary plumbing systems while, at the same time, allowing lati- 
tude for innovation and new technologies. The public at large is encouraged and invited to participate in lAPMO's open con- 
sensus code development process. This code is updated every three years. A code development timeline and other relevant 
information is available at lAPMO's website at www.iapmo.org. 

The Uniform Plumbing Code® is dedicated to all those who, in working to achieve "the ultimate plumbing code," have 
unselfishly devoted their time, effort, and personal funds to create and maintain this, the finest plumbing code in existence 
today. 

The 2009 Uniform Plumbing Code® is supported by the American Society of Sanitary Engineering (ASSE), the Mechanical 
Contractors Association of America (MCAA), the Plumbing-Heating-Cooling Contractors National Association (PHCC-NA), 
the United Association (UA), and the World Plumbing Council (WPC). The presence of these logos, while reflecting support, 
does not imply any ownership of the copyright to the UPC, which is held exclusively by lAPMO. Further, the logos of these 
associations indicates the support of IAPMO*s open, consensus process being used to develop lAPMO's codes and standards. 

The addresses of the organizations are as follows: 

ASSE - 901 Canterbury Road, Suite A • Westlake, OH 44145-7201 • (440) 835-3040 

MCAA- 1385 Piccard Drive • Rockville, MD 20850 • (301) 869-5800 

PHCC-NA- PO Box 6808 • Falls Church, VA 22046 • (800) 533-7694 

UA - 901 Massachusetts Avenue NW • Washington, DC 20001 • (202) 628-5823 

WPC - WPC Secretary • c/o Mechanical Contractors Association of Alberta 

#204 2725-12 St. NE Calgary • Alberta T2E 7J2, Canada • +1-40-325-072-37 

RO. Box 2005 • Marmion, Wester AustraUa 6020 • +61-8-9448-0430 



Code changes made to the original amalgannated code are marked In the 
margins as follows. 

-*— An arrow denotes a deletion | A vertical line denotes a change 



2010 CALIFORNIA PLUMBING CODE 



TABLE OF CONTENTS 



CHAPTER 1 

1.1.0 
1.1.1 
1.1.2 
1.1.3 
1.1.4 
1.1.5 
1.1.6 

1.1.7 
1.1.8 

1.1.9 

1.1.10 

1.1.11 

1.1.12 

1.2.0 

1.2.2 



1.3.0 


1.4.0 


1.5.0 


1.6.0 


1.7.0 


1.8.0 


1.8.1 


1.8.2 


1.8.3 


1.8.4 


1.8.5 


1.8.6 


1.8.7 



ADMINISTRATION - 
DIVISIONI 3 

General 3 

Title 3 

Purpose 3 

Scope 3 

Appendices 4 

Referenced Codes 4 

Non-Building Standards, 

Orders, and Regulations 4 

Order of Precedence and Use 4 

City, County, or City and 

County Amendments, 

Additions or Deletions 5 

Effective Date of this Code 5 

Availability of Codes 5 

Format 5 

Validity 5 

Building Standards 

Commission 5 

Alternative Materials, Design, 

and Methods of Construction 

and Equipment 6 

Corrections Standards 

Authority 6 

Department of Consumer 

Affairs 6 

Reserved for California 

Energy Commission 6 

Department of Food and 
Agriculture 6 

Department of Public Health 6 

Department of Housing 

and Community Development 

(HCD) 7 

Purpose 7 

Authority and Abbreviations 7 

Local Enforcing Agency 8 

Permits, Fees, Applications, 

and Inspections 8 

Right of Entry for 

Enforcement 9 

Local Modification by 

Ordinance or Regulation 9 

Alternate Materials, Designs, 

Tests, and Methods of 

Construction 10 



1.8.8 
1.8.9 

1.8.10 

1.9.0 

1.9.1 

1.9.2 

1.10.0 

1.10.1 
1.10.2 
1.10.3 
1.10.4 
1.11.0 

1.11.1 

1.11.2 

1.11.3 
1.11.4 
1.11.5 
1.11.6 
1.11.7 

1.1L8 
1.11.9 
LILIO 

1.12.0 

1.13.0 
1.14.0 



101.0 
101.1 
101.2 

101.3 
101.4 



Appeals Board 10 

Unsafe Buildings or 

Structures 11 

Other Building 

Regulations 11 

Division of the State 

Architect 12 

Division of the State 

Architect-Access 

Compliance 12 

Division of the State 

Architect - Structural Safety 12 

Office of Statewide Health 
Planning and Development 12 

OSHPD 1 12 

0SHPD2 12 

OSHPD 3 13 

OSHPD 4 13 

Office of the State Fire 

Marshal 13 

SFM-Office of the State 

Fire Marshal 13 

Duties and Powers of the 

Enforcing Agency 14 

Construction Documents 16 

Fees 16 

Inspections 17 

Certificate of Occupancy 17 

Temporary Structures and 

Uses 17 

Service Utilities 17 

Stop Work Order 17 

Unsafe Buildings, Structures, 

and Equipment 17 

Reserved for the State 

Librarian 17 

Department of Water 

Resources (DWR) 17 

Reserved for the State 

Lands Commission 17 

DIVISION II- 
ADMINISTRATION 19 

Title, Scope, and General 19 

Title 19 

Purpose 19 

Plans Required 19 

Scope 19 



2010 CALIFORNIA PLUMBING CODE 



101.5 

102.0 
102.1 

102.2 

102.3 
103.0 
103.1 
103.2 
103.3 
103.4 
103.5 
103.6 
103.7 
103.8 
Table 1-1 

CHAPTER 2 

201.0 

202.0 

CHAPTER 3 

301.0 

301.1 

301.2 



301.3 
301.4 

301.5 

302.0 
303.0 
304.0 

305.0 
306.0 

307.0 
308.0 
309.0 
310.0 
310.4 
311.0 



Application to Existing 

Plumbing System 19 

Organization and Enforcement 20 

Authority Having Jurisdiction 20 

Duties and Powers of the 

Authority Having Jurisdiction 20 

Violations and Penalties 20 

Permits and Inspections 21 

Permits 21 

Application for Permit 21 

Permit Issuance 21 

Fees 22 

Inspections 23 

Connection Approval 24 

Unconstitutional 24 

Validity 24 

Plumbing Permit Fees 25 

DEFINITIONS 29 

General 29 

Definition of Terms 29 

GENERAL REGULATIONS 41 

Materials - Standards and 
Alternates 41 

Minimum Standards 41 

Alternate Materials and 
Methods of Construction 
Equivalency 41 

Flood Hazard Resistance 41 

Alternative Engineered 

Design 42 

One- and Two-Family 

Dwellings. [HCD 1 & HCD 2] 42 

Iron Pipe Size (IPS) Pipe 42 

Disposal of Liquid Waste 42 

Connections to Plumbing 

System Required 42 

Sewers Required 42 

Damage to Drainage System 

or Public Sewer 42 

Industrial Wastes 43 

Location 43 

Improper Location 43 

Workmanship 43 

Installation Practices 43 

Prohibited Fittings and 

Practices 43 



311.8 


311.12 


312.0 


313.0 


313.5 


313.8 


313.10 


313.12 


314.0 


Table 3-1 


315.0 


315.3 


316.0 


316.1 


316.2 


316.3 


316.4 


317.0 


318.0 


319.0 


320.0 


Table 3-2 


CHAPTER 4 



401.0 

401.1 
401.2 
402.0 

402.2 
402.3 
402.4 
402.5 
402.6 
403.0 
404.0 
404.1 
404.2 
405.0 



Screwed Fittings 43 

[OSHPD 1,2&4] 

Services/Systems and 

Utilities 43 

Independent Systems 43 

Protection of Piping, 

Materials, and Structures 44 

Protectively Coated Pipe 44 

Waterproofing of Openings 44 

Sleeves 44 

Ratproofmg 44 

Hangers and Supports 44 

Hanger Rod Sizes 45 

Trenching, Excavation, 

and Backfill 45 

Open Trenches 45 

Joints and Connections 45 

Types of Joints 45 

Special Joints 46 

Flanged Fixture Connections 46 

Prohibited Joints and 

Connections 46 

Increasers and Reducers 46 

Food-Handling 

Establishments 46 

Test Gauges 47 

[Not permitted for OSHPD 
1,2, 3 & 4] Medical Gas and 
Vacuum Systems 47 

Hangers and Support 48 

PLUMBING FIXTURES AND 
FIXTURE FITTINGS 51 

Materials - General 

Requirements 51 

Quality of Fixtures 51 

Lead 51 

Water-Conserving 

Fixtures and Fittings 51 

Water Closets 51 

Urinals 51 

Metered Faucets 52 

Emergency Safety Showers 52 

Installation 52 

Overflows 52 

Strainers and Connections 52 

Strainers 52 

Connections 52 

Prohibited Fixtures 52 



VIII 



2010 CALIFORNIA PLUMBING CODE 



405.2 

406.0 

406.1 

406.3 
406.4 
406.5 

407.0 
407.1 
407.2 
407.3 
407.4 
407.5 
407.6 

407.7 
408.0 
408.2 
408.3 

408.4 
409.0 
410.0 

410.1 

410.2 
410.3 
410.4 

410.5 
411.0 

411.2 
411.3 
411.4 
411.10 

411.11 
412.0 

412.1 

412.2 
412.3 
412.4 



Prohibited Urinals 52 

Special Fixtures and 

Specialties 52 

Water and Waste 

Connections 52 

Special Use Fixtures 53 

Zinc Alloy Components 53 

Drinking Fountains. 

[HCD 1 &HCD2] 53 

Installation 53 

Cleaning 53 

Joints 53 

Securing Fixtures 53 

Wall-Hung Fixtures 53 

Setting 53 

Installations for Persons 

with Disabilities 53 

Supply Fittings 53 

Water Closets 53 

Water Closet Seats 53 

Securing Floor-Mounted, 
Back-Outlet Water Closet 
Bowls 53 

Closet Rings (Closet Flanges) 53 

Urinals 54 

Flushing Devices for Water 

Closets and Urinals 54 

Flushing Devices Required 54 

Automatic Flushing Tanks 54 

Flushometer Valves 54 

Water Supply for Flush 

Tanks 54 

Overflows in Flush Tanks 54 

Floor Drains and Shower 

Stalls 54 

Location of Floor Drains 54 

Food Storage Areas 54 

Floor Slope 54 

Location of Valves and 

Heads 56 

Water Supply Riser 56 

Minimum Number of 

Required Fixtures 56 

Fixture Count 56 

Access to Fixtures 56 

Separate Facilities 56 

Fixture Requirements 

for Special Occupancies 56 



412.5 Facilities in Mercantile 
and Business Occupancies 

Serving Customers 56 

412.6 Toilet Facilities for Workers 56 

412.7 [CA] Cosmetology 56 

412.8 [CA] Cosmetology 
Estabhshments 56 

412.9 [DPH] Commissaries 
Serving Mobile Food 
Preparation Units 57 

412.10 [DPH] Employee Lavatories 

in Food Establishments 57 

413.0 Fixtures and Fixture Fittings 

for Persons with Disabilities 57 

413.1 Limitation of Hot Water 
Temperature for Pubhc 
Lavatories 57 

414.0 Bathtubs and Whirlpool 

Bathtubs 57 

414.5 Limitation of Hot Water 
in Bathtubs and Whirlpool 
Bathtubs 57 

415.0 Installation of Fixture 

Fittings 57 

416.0 Bidets 57 

416.1 Materials 57 

416.2 Backflow Protection 57 

416.3 Limitation of Water 
Temperature in Bidets 57 

417.0 Future Fixtures 57 

418.0 Shower and Tub-Shower 
Combination Control 
Valves 57 

Table 4- 1 Minimum Plumbing 

Facilities 58 

Table A Occupant Load Factor 62 

Table 4-2 [OSHPD 1, 2, 3 & 4] 
Minimum Plumbing 
Facilities 63 

CHAPTER 5 WATER HEATERS 71 

Parti 71 

501.0 General 71 

502.0 Definitions 71 

5 02 . 1 Appliance Categorized Vent 

Diameter/Area 71 

502.2 Chimney 71 

502.3 Chimney, Factory-Built 71 

502.4 Chimney, Masonry 71 

502.5 Chimney, Metal 71 



2010 CALIFORNIA PLUMBING CODE 



502.6 Combustible Material 71 

502.7 Direct- Vent Appliances 71 

502.8 Flue Collar 71 

502.9 Gas Vent, Type B 71 

502.10 Gas Vent, Type L 71 

502.11 Indirect-Fired Water Heater 71 

502.12 Vent 71 

502.13 Vent Connector 71 

502.14 Venting System 71 

502.15 Water Heater 71 

503.0 Permits 71 

Table 5-1 First Hour Rating 71 

504.0 Inspection 72 

504. 1 Inspection of Chimneys 

or Vents 72 

504.2 Final Water Heater 

Inspection 72 

505.0 Water Heater Requirements 72 

505.1 Location 72 

505.3 Clearance 72 

505.4 Pressure-Limiting Devices 72 

505.5 Temperature-Limiting 

Devices 72 

505.6 Temperature, Pressure, 

and Vacuum Relief Devices 72 

506.0 Oil-Burning and Other 

Water Heaters 72 

506.4 Indirect-Fired Water Heaters 72 

507.0 Air for Combustion and 
Ventilation 73 

507.1 General 73 

507.2 Indoor Combustion Air 73 

507.3 Indoor Opening Size and 
Location 74 

507.4 Outdoor Combustion Air 74 

507.5 Combination Indoor and 

Outdoor Combustion Air 74 

507.6 Engineered Installations 74 

507.7 Mechanical Combustion 

Air Supply 74 

507.8 Louvers, Grilles, and 

Screens 74 

507.9 Combustion Air Ducts 75 

508.0 Other Water Heater 

Installation Requirements 75 

508.2 Protection from Seismic 

Damage 75 

508.5 Relief Valve Discharge 75 

508.6 Added or Converted 

Appliances 75 



508.7 
508.8 

508.9 
508.10 

508.11 
508.12 

508.13 
508.14 

508.15 

508.16 

508.17 

508.18 
508.19 
508.20 

508.21 

508.22 

508.23 

508.24 

508.25 
508.26 
508.27 

509.0 
509.1 
509.2 

509.3 

509.4 
510.0 
510.1 
510.2 
510.3 
510.4 



Types of Gases 76 

Safety Shutoff Devices for 
Unhsted LP-Gas Appliance 
Used Indoors 76 

Use of Air or Oxygen 
Underpressure 76 

Protection of Gas Appliances 

from Fumes or Gases Other 

than Products of Combustion 76 

Process Air 76 

Building Structural 

Members 76 

Flammable Vapors 76 

Installation in Residential 

Garages 76 

Installation in Commercial 

Garages 76 

Installation in Aircraft 

Hangars 77 

Gas Appliance Physical 

Protection 77 

Venting of Flue Gases 77 

Extra Device or Attachment 77 

Adequate Capacity of 

Piping 77 

Avoiding Strain on Gas 

Piping 77 

Gas Appliance Pressure 

Regulators 77 

Venting of Gas Appliance 

Pressure Regulators 77 

Bleed Lines for 

Diaphragm-Type Valves 77 

Combination of Appliances 77 

Installation Instructions 77 

Protection of Outdoor 

Appliances 78 

Appliances on Roofs 78 

General 78 

Installation of Appliances 

on Roofs 78 

Access to Appliances 

on Roofs 78 

Appliances in Attics 78 

Venting of Appliances 79 

General 79 

Specification for Venting 79 

Design and Construction 79 

Type of Venting System 

to Be Used 80 



2010 CALIFORNIA PLUMBING CODE 



510.5 Masonry, Metal, and 
Factory-Built Chimneys 80 

Table 5-2 Type of Venting System 

to Be Used 82 

510.6 Gas Vents 83 

510.7 Single-Wall Metal Pipe 84 

Table 5-3 Clearance for Connectors 85 

Table 5-4 Reduction of Clearances 
with Specified Forms of 
Protection 86 

510.8 Through-the-Wall Vent 
Termination 87 

510.9 Condensation Drain 88 

510.10 Vent Connectors for 
Category I Gas Utilization 
Appliances 88 

Table 5-5 Minimum Thickness for 
Galvanized Steel Vent 
Connector for Low-Heat 
Appliances 89 

Table 5-6 Minimum Thickness for 
Steel Vent Connectors for 
Medium-Heat Appliances 
and Commercial and 
Industrial Incinerators 89 

510.11 Vent Connectors for 
Category II, Category III, 
and Category IV Gas 

Utilization Appliances 90 

510.12 Draft Hoods and Draft 

Controls 90 

510.13 Manually Operated 

Dampers 91 

510.14 Automatically Operated 

Vent Dampers 91 

510.15 Obstructions 91 

511.0 Sizing of Category I 

Venting Systems 91 

511.2 Additional Requirements 
to Multiple Appliance 
Vent Table 5-14 through 
Table 5-22 93 

Table 5-7 Vent Connector 

Maximum Length 93 

512.0 Direct- Vent Appliances .95 

Table 5-8 Type B Double-Wall 

Gas Vent 98 

Table 5-9 Type B Double-Wall 

Gas Vent 101 

Table 5-10 Masonry Chimney 103 

Table 5-11 Masonry Chimney 105 



Table 5-12 



Table 5-13 
Table 5-14 
Table 5-15 
Table 5-16 
Table 5-17 
Table 5-18 



Table 5-19 
Table 5-20 
Table 5-21 
Table 5-22 
Part II 



G.l 
G.2 
Table G.2.3 

J.l 

Table A.9.3.2.1 

CHAPTER 6 

601.0 
601.2 

Table 6-1 

601.5 



Single-Wall Metal Pipe 

or Type B Asbestos 

Cement Vent 107 

Exterior Masonry Chimney 108 

Type B Double-Wall Vent 109 

Type B Double- Wall Vent 113 

Masonry Chimney 115 

Masonry Chimney 117 

Single-Wall Metal Pipe 

or Type B Asbestos 

Cement Vent 119 

Exterior Masonry 

Chimney 119 

Exterior Masonry 

Chimney 120 

Exterior Masonry 

Chimney 121 

Exterior Masonry 

Chimney 122 

Sizing of Venting Systems 

Serving Appliances 

Equipped with Draft 

Hoods, Category I 

Appliances, and Appliances 

Listed for Use with 

Type B Vents 123 

Examples Using Single 

Appliance Venting Tables 123 

Examples Using Common 

Venting Tables 127 

Masonry Chimney Liner 
Dimensions with Circular 
Equivalents 128 

Example of Combination 

Indoor and Outdoor 

Combustion Air Opening 130 

Standard Method Volume, 

All Appliances 131 

WATER SUPPLY AND 
DISTRIBUTION 135 

Hot and Cold Water 

Required 135 

Identification of a 

Potable and Non-potable 

Water System 135 

Minimum Length of 
Color Field and Size 
of Letters 135 

[CA] Schools of 

Cosmetology and 

Cosmetological Establishments 135 



2010 CALIFORNIA PLUMBING CODE 



Table 6-2 Backflow Prevention 
Devices, Assemblies, 
and Methods 136 

601 .6 [AGR] Meat and Poultry 
Processing Plants 137 

60 1 .7 [AGR] Collection Centers 

and Facilities 137 

Table 6-3 Minimum Airgaps for 

Water Distribution 137 

601.8 [AGR] Renderers 138 

60 1 .9 [AGR] Horse Meat and 

Pet Food Establishments 138 

602.0 Unlawful Connections 138 

603.0 Cross-Connection Control 138 

603 . 1 Approval of Devices or 
Assemblies ; 138 

603.2 Backflow Prevention 
Devices, Assemblies, 

and Methods 139 

603.3 General Requirements 139 

603.4 Specific Requirements 139 

604.0 Materials 141 

Table 6-4 Materials for Building 
Supply and Water 
Distribution Piping 
and Fittings 142 

604.11 PEX 143 

604.12 Flexible Corrugated 

Connectors 143 

604.13 PEX-AL-PEX and 

PE-AL-PE 143 

604. 1 4 Water Heater Connectors 1 44 

605.0 Valves .144 

606.0 Joints and Connections 144 

606.1 Types of Joints 144 

606.2 Use of Joints 145 

607.0 Gravity Supply Tanks 145 

608.0 Water Pressure, Pressure 
Regulators, Pressure Relief 
Valves, and Vacuum Relief 

Valves 145 

608. 1 Inadequate Water Pressure 1 45 

608.2 Excessive Water Pressure 145 

608.7 Vacuum Relief Valves 145 

609.0 Installation, Testing, Unions, 

and Location 146 

609.1 Installation 146 

609.4 Testing 146 

609.5 Unions 146 

609.6 Location 146 



609.8 Low-Pressure Cutoff 
Required on Booster 
Pumps for Water 

Distribution Systems 146 

609.9 Disinfection of Potable 

Water System 146 

609.10 Water Hammer 

[Not Adopted by HCD] 147 

610.0 Size of Potable Water 

Piping 147 

610.8 Size of Meter and 
Building Supply Pipe 

Using Table 6-6 147 

610.9 Size of Branches 148 

610.10 Sizing for Flushometer 

Valves 148 

610.11 Sizing Systems for 

Flushometer Tanks 148 

610.12 Sizing for Velocity 148 

610.13 Exceptions 148 

Table 6-5 Water Supply Fixture 
Units (WSFU) and 
Minimum Fixture Branch 
Pipe Sizes 149 

Table 6-6 Fixture Unit Table for 
Determining Water 
Pipe and Meter Sizes 150 

Table 6-7 Flushometer Fixture 
Units for Water Sizing 
Using Table 6-5 151 

Table 6-8 Sizing of Residential 

Water Softeners 151 

611.0 Drinking Water 

Treatment Units 151 

611.1 Compliance with Standard 151 

611.2 Airgap Discharge 151 

611.3 Connection Tubing 151 

611.4 Sizing of Residential 

Softeners 151 

612.0 [0SHPD1,2, 3&4] 
Domestic Hot- Water 
Distribution Systems 
for Health Facilities 
and Clinics 151 

Table 6-9 [OSHPD 1, 2, 3 & 4] 

Hot Water Use 151 

613.0 Dialysis Water-Distribution 

Systems 152 

614.0 Identification of Potable and 
Non-potable Water Lines 152 

614.1 Uses Not Permitted 152 

614.4 [OSHPD 1] Emergency 

Water Supply 152 



XII 



2010 CALIFORNIA PLUMBING CODE 



CHAPTER 7 


Parti 


701.0 


701.3 


701.4 


Table 7-2(a) 


Table 7-2(b) 


702.0 


Table 7-1 


Table 7-4 



703.0 
Table 7-3 

704.0 

705.0 
705.1 
Table 7-5 

705.2 
705.3 
706.0 

707.0 
Table 7-6 

708.0 

709.0 

710.0 



710.12 

710.13 

711.0 

712.0 

712.1 

712.2 

712.3 

Part II 

713.0 

714.0 



SANITARY DRAINAGE 155 

Drainage Systems 155 

Materials 155 

Lead 155 

Ferrules and Bushings 155 

Caulking Ferrules 155 

Soldering Bushings 155 

Fixture Unit Equivalents 156 

Materials for Drain, Waste 

Vent Pipe, and Fittings 156 

Discharge Capacity In 

Gallons per Minute 

(Liters per Second) 

For Intermittent 

Flow Only 156 

Size of Drainage Piping 156 

Drainage Fixture Unit 

Values (DFU) 157 

Fixture Connections 

(Drainage) 158 

Joints and Connections 158 

Types of Joints 158 

Maximum Unit Loading 

and Maximum Length 

of Drainage and Vent Piping 158 

Use of Joints 159 

Special Joints 159 

Changes in Direction 

of Drainage Flow 159 

Cleanouts 159 

Cleanouts 160 

Grade of Horizontal 

Drainage Piping 160 

Gravity Drainage Required 160 

Drainage of Fixtures 

Located Below the 

Next Upstream Manhole 

or Below the Main 

Sewer Level 160 

Grinder Pump Ejector 161 

Macerating Toilet Systems 161 

Suds Relief 162 

Testing 162 

Media 162 

Water Test 162 

Air Test 162 

Building Sewers 162 

Sewer Required 162 

Damage to Public Sewer 

or Private Sewage Disposal 

System 162 



715.0 Building Sewer Materials 163 

716.0 Markings 163 

717.0 Size of Building Sewers 163 

717.1 [AGR] Meat and Poultry 
Processing Plants 163 

718.0 Grade, Support, and 
Protection of Building 
Sewers 163 

719.0 Cleanouts 163 

720.0 Sewer and Water Pipes 164 

721.0 Location 164 

Table 7-7 Minimum Horizontal 

Distance Required From 

Building Sewer 164 

Table 7-8 Maximum/Minimum 
Fixture Unit Loading 
on Building Sewer Piping 164 

722.0 Abandoned Sewers and 

Sewage Disposal Facilities 164 

723.0 Building Sewer Test 165 

724.0 [AGR] Meat and Poultry 

Processing Plant Drainage 165 

725.0 [AGR] Collection Center 

and Facilities Drainage 165 

726.0 [AGR] Drainage and 

Plumbing, General 165 

727.0 [OSHPD 1] Emergency 

Sanitary Drainage 165 

CHAPTERS INDIRECT WASTES 169 

801.0 Indirect Wastes 169 

801.1 Airgap or Airbreak 

Required 169 

801.2 Food and Beverage 

Handling Establishments 169 

801 .3 Bar and Fountain 

Sink Traps 169 

801.4 Connections from Water 
Distribution System 169 

801.5 Sterilizers 169 

801.6 Drip or Drainage Outlets 169 

802.0 Approvals 169 

803.0 Indirect Waste Piping 169 

804.0 Indirect Waste Receptors 169 

805.0 Pressure Drainage 

Connections 170 

806.0 Sterile Equipment 170 

807.0 Appliances 170 

808.0 Cooling Water 170 

809.0 Drinking Fountains 170 



2010 CALIFORNIA PLUMBING CODE 



XIII 



810.0 Steam and Hot Water 
Drainage Condensers 
and Sumps 170 

Table 8-1 Pipe Connections in Blowoff 

Condensers and Sumps 171 

810.4 Strainers 171 

811.0 Chemical Wastes 171 

812.0 Clear Water Wastes 171 

813.0 Swimming Pools 171 

814.0 Condensate Wastes and 

Control 171 

814.1 Condensate Disposal 171 

Table 8-2 Minimum Condensate 

Pipe Size 171 

814.2 Size 172 

814.3 Point of Discharge 172 

CHAPTER 9 VENTS 175 

901.0 General 175 

901.1 Vents Required 175 

901.2 Trap Seal Protection 175 

902.0 Vents Not Required 175 

903.0 Materials 175 

903.2 Use of Copper Tubing 175 

904.0 Size of Vents 175 

905.0 Vent Pipe Grades and 

Connections 176 

906.0 Vent Termination 176 

906.6 Lead 176 

906.7 Frost or Snow Closure 176 

907.0 Vent Stacks and Relief Vents 176 

908.0 Wet Venting 176 

908.1 Vertical Wet Venting 176 

908 .2 Horizontal Wet Venting for 
Bathroom Groups 177 

909.0 Special Venting for Island 

Fixtures 177 

910.0 Combination Waste and 

Vent Systems 177 

911.0 Engineered Vent System 177 

911.1 General 177 

911.2 Minimum Requirements 177 

CHAPTER 1 TRAPS AND 

INTERCEPTORS 181 

1001.0 Traps Required 181 

1002.0 Traps Protected by Vent Pipes 181 

Table 10-1 Horizontal Lengths of Trap 

Arms 181 



1003.0 
1004.0 
1005.0 
1006.0 
1007.0 
1008.0 
1009.0 

1009.1 
1009.2 
1009.3 
1009.4 
1009.5 
1009.6 
1009.7 
1010.0 

1010.1 

1010.2 

1010.3 

1010.4 
1011.0 

1012.0 

1013.0 
1014.0 
1014.2 

1014.3 
Table 10-2 

1015.0 

1015.1 
1015.2 
1015.3 

1015.4 

Table 10-3 

1015.5 
1016.0 
1016.1 
1016.2 



Traps - Described 181 

Traps - Prohibited 182 

Trap Seals 182 

Floor Drain Traps 182 

Trap Seal Protection 182 

Building Traps 182 

Industrial Interceptors (Clarifiers) 
and Separators 182 

When Required 182 

Approval 182 

Design 182 

Relief Vent 182 

Location 182 

Maintenance of Interceptors 182 

Discharge 182 

Slaughterhouses, Packing 
Establishments, etc 182 

[AGR] Meat and Poultry 
Processing Plants 182 

[AGR] Collection Centers 

and Facilities 183 

[AGR] Horse Meat and 

Pet Food Establishments 183 

[AGR] Draining and Plumbing 183 

Minimum Requirements 

for Auto Wash Racks 183 

Commercial and Industrial 
Laundries 183 

Bottling Establishments 183 

Grease Interceptors 183 

Hydromechanical Grease 
Interceptors 184 

Gravity Grease Interceptors 184 

Hydro-mechanical 

Interceptor Sizing Using 

Gravity Flow Rates 184 

FOG (Fats, Oils, and Greases) 
Disposal System 185 

Purpose 185 

Scope 185 

Components, Materials, 

and Equipment 185 

Sizing Application 

and Installation 185 

Gravity Grease Interceptor 

Sizing 185 

Performance 185 

Sand Interceptors 186 

Where Required 186 

Construction and Size 186 



2010 CALIFORNIA PLUMBING CODE 



1016.3 Separate Use 186 

1017.0 Oil and Flammable 

Liquid Interceptors 186 

1017.1 Interceptors Required 186 

1017.2 Design of Interceptors 186 

CHAPTER 11 STORM DRAINAGE 189 

1101.0 General 189 

1101.1 Where Required 189 

1101.2 Storm Water Drainage to 

Sanitary Sewer Prohibited 189 

1101.3 Material Uses 189 

1101.4 Expansion Joints Required 189 

1101.5 Subsoil Drains 189 

1101.6 Building Subdrains 189 

1101.7 Areaway Drains 190 

1101.8 Window Areaway Drains 190 

1101.9 Filling Stations and 
Motor Vehicle Washing 
Establishments 190 

1101.10 Paved Areas 190 

1101.11 Roof Drainage 190 

1101.12 Cleanouts 190 

1102.0 Materials 190 

1102.1 Conductors 190 

1102.2 Leaders 191 

1 1 02 . 3 Underground Building 

Storm Drains 191 

1102.4 Building Storm Sewers 191 

1102.5 Subsoil Drains 191 

1 1 03 .0 Traps on Storm Drains 

and Leaders 191 

1103.1 Where Required 191 

1103.2 Where Not Required 191 

1103.3 Trap Size 191 

1103.4 Method of Installation of 
Combined Sewer 191 

1104.0 Leaders, Conductors, 

and Connections 191 

1104.1 Improper Use 191 

1104.2 Protection of Leaders 191 

1 104.3 Combining Storm with 

Sanitary Drainage 191 

1105.0 Roof Drains 191 

1105.1 Material 191 

1105.2 Dome or Strainer for 

General Use 191 

1105.3 Strainers for Flat Decks 191 



1105.4 Roof Drain Flashings 191 

1 106.0 Size of Leaders, Conductors, 

and Storm Drains 191 

1106.1 Vertical Conductors and 

Leaders 191 

1 1 06.2 Size of Horizontal Storm 

Drains and Sewers 191 

1106.3 Size of Roof Gutters 191 

1106.4 Side Walls Draining 

onto a Roof. 191 

1 1 07.0 Values for Continuous 

Flow 192 

1 108.0 Controlled-Flow Roof 

Drainage 192 

1108.1 Application 192 

Table 11-4 Controlled-Flow Maximum 

Roof Water Depth 192 

Table 11-5 Distance of Scupper 

Bottoms Above Roof 192 

1108.2 Setback Roofs 192 

1109.0 Testing 192 

1109.1 Testing Required 192 

1 109.2 Methods of Testing 

Storm Drainage Systems 193 

Table 11-1 Sizing Roof Drains, 
Leaders, and Vertical 
Rainwater Piping 193 

Table 11-2 Sizing of Horizontal 

Rainwater Piping 194 

Table 11-3 Size of Gutters 196 

CHAPTER 12 FUEL PIPING 201 

1201.0 Scope of Gas Piping 201 

1202.0 General 201 

1203.0 Definitions 201 

1203.1 Appliance Fuel Connector 201 

1203.2 Bonding Jumper 201 

1203.3 Fuel Gas 201 

1203.4 Gas Piping 201 

1203.5 Gas-Piping System 201 

1203.6 Grounding Electrode 201 

1 203 . 7 Liquefied Petroleum 

Gas (LPG) Facilities 201 

1 203 . 8 Provision for Location of 

Point of Delivery 202 

1203.9 Quick-Disconnect Device 202 

1203.10 Service Piping 202 

1203.11 Transition Gas Riser 202 

1204.0 Inspection 202 



2010 CALIFORNIA PLUMBING CODE 



XV 



1205.0 Certificate of Inspection 202 

1206.0 Authority to Render 

Gas Service 202 

1207.0 Authority to Disconnect 202 

1208.0 Temporary Use of Gas 202 

1209.0 Gas-Piping System 
Design, Materials, and 
Components 203 

1209.1 Piping Plan 203 

1209.2 Provision for Location of 

Point of Delivery 203 

1209.3 Interconnections Between 
Gas-Piping Systems 203 

1209.4 Sizing of Gas-Piping 

Systems 203 

Table 12-1 Approximate Gas Input 

for Typical Appliances 203 

1209.5 Acceptable Piping Materials 

and Joining Methods 204 

Table 12-2 Specifications for 

Threading Metallic Pipe 205 

1209.6 Gas Meters 206 

1209.7 Gas Pressure Regulators 207 

1209.8 Back-Pressure Protection 208 

1209.9 Low-Pressure Protection 208 

1209.10 Shutoff Valves 208 

1209.11 Expansion and Flexibility 208 

1210.0 Excess Flow Valve 208 

1211.0 Gas Piping Installation 208 

1211.1 Piping Underground 208 

1211.2 Installation of Piping 209 

Table 12-3 Support of Piping 210 

1211.3 Concealed Piping 

in Buildings 210 

1211.4 Piping in Vertical 

Chases 210 

1211.5 Maximum Design 

Operating Pressure 210 

1211.6 Appliance Over 

Pressure Protection 211 

1211.7 Gas Pipe Turns 211 

1211.8 Drips and Sediment 

Traps 211 

1211.9 Outlets 211 

1211.10 Branch Pipe Connection 212 

1211.11 Manual Gas Shutoff 

Valves 212 

1211.12 Prohibited Devices 212 

1211.13 Systems Containing 
Gas- Air Mixtures Outside 

the Flammable Range 212 



1211.14 Systems Containing 
Flammable Gas- Air 

Mixtures 212 

1211.15 Electrical Bonding 

and Grounding 212 

1211.16 Electrical Circuits 213 

1211.17 Electrical Connections 213 

1211.18 Earthquake- Actuated Gas 

Shutoff Valves 213 

12 12.0 Appliance Connections 

to Building Piping 213 

1212.1 Connecting Gas Appliances 213 

1212.2 Suspended Low-Intensity 

Infrared Tube Heaters 213 

1212.3 Use of Nonmetallic 

Gas Hose Connectors 213 

1212.4 Connection of Portable 
and Mobile Industrial 

Gas Appliance 214 

1212.5 AppHance Shutoff Valves 

and Connections 214 

1212.6 Quick-Disconnect Devices 214 

1212.7 Sediment Trap 214 

1212.8 Installation of Piping 214 

1213.0 Liquefied Petroleum 

Gas Facilities and Piping 214 

1214.0 Pressure Testing and 

Inspection 214 

1214.1 General 214 

1214.2 Test Preparation 215 

1214.3 Test Pressure 215 

1214.4 Detection of Leaks 

and Defects 215 

1214.5 Piping Systems Leak 

Check 215 

1214.6 Purging 215 

Table 12-5 Length of Piping Requiring 
Purging with Inert Gas for 
Servicing or Modification 216 

Table 12-6 Length of Piping Requiring 
Purging with Inert Gas 
Before Placing hi Operation 216 

1215.0 Interconnections Between 

Gas Piping Systems 216 

1215.1 Interconnections Supplying 
Separate Users 216 

1215.2 Interconnections for 

Standby Fuels 216 

1216.0 Required Gas Supply 216 

1217.0 Required Gas Piping Size 216 

1217.1 Pipe Sizing Methods 216 



2010 CALIFORNIA PLUMBING CODE 



1217.2 Tables for Sizing Gas-Piping 
Systems 217 

1217.3 Sizing Equations 217 

Table 12-4 Cr and Y for Natural Gas 
and Undiluted Propane at 
Standard Conditions 217 

Table 12-8 Schedule 40 Metallic Pipe 220 

Table 12-9 Schedule 40 Metallic Pipe 221 

Table 12-10 Schedule 40 Metallic Pipe 222 

Table 12-11 Schedule 40 Metallic Pipe 223 

Table 12-12 Semi-Rigid Copper Tubing 224 

Table 12-13 Semi-Rigid Copper Tubing 225 

Table 12-14 Semi-Rigid Copper Tubing 226 

Table 12-15 Semi-Rigid Copper Tubing 227 

Table 12-16 Semi-Rigid Copper Tubing 228 

Table 12-17 Semi-Rigid Copper Tubing 229 

Table 12-18 Semi-Rigid Copper Tubing 230 

Table 12-19 Corrugated Stainless Steel 

Tubing (CSST) 231 

Table 12-20 Corrugated Stainless Steel 

Tubing (CSST) 231 

Table 12-21 Corrugated Stainless Steel 

Tubing (CSST) 232 

Table 12-22 Corrugated Stainless Steel 

Tubing (CSST) 232 

Table 12-23 Corrugated Stainless Steel 

Tubing (CSST) 233 

Table 12-24 Polyethylene Plastic Pipe 233 

Table 12-25 Polyethylene Plastic Pipe 234 

Table 12-26 Polyethylene Plastic Pipe 235 

Table 12-27 Polyethylene Plastic Tubing 236 

Table 12-28 Polyethylene Plastic Tubing 236 

Table 1 2-29 Schedule 40 Metallic Pipe 237 

Table 12-30 Schedule 40 Metallic Pipe 238 

Table 12-3 1 Schedule 40 Metallic Pipe 239 

Table 12-32 Schedule 40 Metallic Pipe 240 

Table 12-33 Semi-Rigid Copper Tubing 241 

Table 12-34 Semi-Rigid Copper Tubing 242 

Table 12-35 Semi-Rigid Copper Tubing 243 

Table 12-36 Corrugated Stainless Steel 

Tubing (CSST) 244 

Table 12-37 Corrugated Stainless Steel 

Tubing (CSST) 244 

Table 12-38 Corrugated Stainless Steel 

Tubing (CSST) 245 

Table 12-39 Polyethylene Plastic Pipe 245 

Table 12-40 Polyethylene Plastic Pipe 246 

Table 12-41 Polyethylene Plastic Tubing 247 



CHAPTER 13 HEALTH CARE 
FACILITIES AND 
MEDICAL GAS AND 
VACUUM SYSTEMS 251 

Part I Special Requirements for 

Health Care Facilities 251 

1301.0 Application 251 

1302.0 Medical Gas and Vacuum 
Piping Systems-Installation 
Requirements 251 

1303.0 Protrusions from Walls 251 

1304.0 Psychiatric Patient Rooms 251 

1305.0 Locations for Ice Storage 251 

1306.0 Sterilizers 251 

1306.1 General 251 

1306.2 Indirect Waste Connections 251 

1 307.0 Vapor Vents and Stacks 

for Sterilizers 251 

1307.1 General 251 

1308.0 Aspirators 252 

Part II Medical Gas and Vacuum 

Systems 252 

1309.0 Application 252 

1310.0 Definitions 252 

1310.1 Building Supply 252 

1310.2 Critical Care Area 252 

1310.3 General Care Areas 252 

1310.4 Manifold 252 

1310.5 Medical Air 252 

1310.6 Medical Gas 252 

1310.7 Medical Gas System 252 

1310.8 Medical Vacuum System 252 

1310.9 Nitrogen, NF (Oil-Free, Dry) 
(Nitrogen for Brazing 

and Testing) 252 

1310.10 Patient Care Area 252 

1310.11 Purge, Flow 252 

1310.12 Purge, System 252 

1310.13 SCFM 253 

1310.14 Special Hazard Area 253 

1310.15 Station Inlet 253 

1310.16 Station Outlet 253 

1310.17 Use Point 253 

1310.18 User Outlet 253 

1310.19 Vacuum System -Level 1 253 

1310.20 Valve, Isolation 253 

1310.21 Valve, Riser 253 

1310.22 Valve, Service 253 



2010 CALIFORNIA PLUMBING CODE 



1310.23 Valve, Source 253 

1310.24 Valve, Zone 253 

13 10.25 Waste Anesthetic Gas 

Disposal 253 

1311.0 General Requirements 253 

1311.1 Oxygen Compatibility 253 

1312.0 Plan Review 254 

1313.0 System Performance 254 

1313.1 Required Operating 

Pressures 254 

1313.2 Minimum Flow Rates 254 

1313.3 Minimum Station 

Outlets/Inlets 254 

1314.0 Required Pipe Sizing 254 

Table 13-1 Standard Designation 
Colors and Operating 
Pressures for Gas and 
Vacuum Systems 255 

Table 13-2 Minimum Flow Rates 255 

Table 13-3 Minimum Outlets/Inlets per 

Station 256 

Table 13-4 System Sizing - Flow 

Requirements for Station 
Inlet/Outlet 256 

1315.0 Workmanship 256 

1316.0 Materials 256 

Table 13-5 Outlet Rating for 
Vacuum Piping 
Systems 257 

Table 13-6 Size of GasA^acuum 

Piping 257 

13 1 7.0 Cleaning for Medical Gas 

Piping Systems 258 

1318.0 Installation of Piping 259 

Table 13-7 Maximum Pipe 

Support Spacing 260 

1319.0 Joints 260 

1320.0 Valves - Requirements, 
Locations, and Labeling 262 

1320.1 General Requirements 262 

1320.4 Source Valve 262 

1320.5 Main Valve 262 

1320.6 Riser Valve 262 

1320.7 Zone Valve 262 

1320.8 Service Valves 263 

1321.0 Pressure-Regulating 

Equipment 263 

1321.3 Pressure Gauges 263 

1322.0 Station Outlets/Inlets 263 

1323.0 Labeling and Identification 263 



1324.0 Alarms 264 

1325.0 Medical Air System 264 

1325.6 Medical Air Receivers 265 

1326.0 Medical Vacuum Pump 

System 265 

1327.0 Testing and Inspection 266 

1327.3 Advance Notice 266 

1327.4 Responsibility 266 

1327.5 Testing 266 

1327.6 Retesting 266 

1 327.7 Initial Pressure Test - 

Piped Gas Systems 266 

1327.8 Cross-Connection Test - 

Piped Gas Systems 266 

1 327.9 Final Testing Standing 
Pressure Test - Piped 

Gas Systems 267 

1327.10 Initial Pressure Test - 

Piped Vacuum Systems 267 

1327.11 Standing Pressure Test - 

Piped Vacuum Systems 267 

1327.12 Corrections 268 

1327.13 Approval 268 

1327.14 Covering or Use 268 

1327.15 Uncovering 268 

1328.0 System Certification 268 

CHAPTER 14 REFERENCED 

STANDARDS 271 

Table 14-1 Standards for Materials, 
Equipment, Joints, and 
Connections 271 

Abbreviations in Table 14-1 291 

CHAPTER 15 FIRESTOP 

PROTECTION 295 

1501.0 General Requirements 295 

1501.1 Applicability 295 

1502.0 Plans and Specifications 295 

1503.0 Installation 295 

1504.0 Definitions 295 

1504.1 Penetration Firestop System 295 

1504.2 F Rating 295 

1504.3 T Rating 295 

1505.0 Combustible Piping 

Installations 295 

1505.5 Insulation and Coverings 295 

1505.6 Sleeves 295 

1506.0 Non-Combustible Piping 



2010 CALIFORNIA PLUMBING CODE 



Installations 295 

1506.6 Sleeves 296 

1506.7 Insulation and Coverings 296 

1507.0 Required Inspection 296 

1507.1 General 296 

CHAPTER 16 RESERVED 297 

CHAPTER 1 6A NON-POTABLE WATER 

REUSE SYSTEMS 301 

Part I [HCD 1] 301 

1601A.0 Graywater Systems - 

General 301 

1602A.0 Definitions 301 

1603A.0 Permit 302 

1603A.1 System Requirements 302 

Table 1 603 A. 1 A Construction Permit 

Requirements 303 

1604A.0 Drawings and Specifications 303 

1604A.1 Groundwater Depth 303 

1605A.0 Inspection and Testing 303 

1 606 A. Procedure for Estimating 

Graywater Discharge 303 

1 607A.0 Required Area of Irrigation 

or Disposal Fields 303 

1 608 A.O Determination of Maximum 

Absorption Capacity 304 

1609A.0 Tank Construction 304 

1610A.0 Graywater Systems 304 

1610A.1 Pipe Materials 304 

1610A.2 Identification 304 

1610A.3 Valves 304 

1 6 1 1 A.O Irrigation, Disposal Field, 

and Mulch Basin Construction 304 

1611A.1 Mulch Basin 304 

161 1 A.2 Irrigation Field 304 

1611A.3 Disposal Field 305 

1612A.0 Special Provisions 305 

1 6 1 2A. 1 Indoor Use of Treated 

Graywater 305 

Table 1 6A- 1 Location of Graywater 

System 306 

Table 1 6A-2 Design Criteria of 

Six Typical Soils 306 

Table 1 6 A-3 Subsurface Drip Design 

Criteria of Six Typical Soils 306 

Part II [DWR] 307 

1 61 3 A.O Recycled Water Systems - 

General 307 



1614A.0 Definitions 307 

1615A.0 Permit 307 

1616A.0 Drawings and Specifications 307 

1 6 1 7A.0 Pipe Material/Pipe 

Identification 307 

1617A.1 Pipe Materials 307 

1617A.2 Color and Information 307 

1618A.0 Installation 307 

1619A.0 Signs 307 

1620A.0 Inspection and Testing 308 

1621A.0 Sizing 309 

APPENDICES TABLE OF CONTENTS 311 

Appendix A Recommended Rules for 
Sizing the Water Supply 
System 315 

Appendix B Explanatory Notes on 
Combination Waste 
and Vent Systems 333 

Appendix D Sizing Storm Water 

Drainage Systems 337 

Appendix G Graywater Systems 347 

Appendix I Installation Standards 

Table of Content 359 

Appendix K Private Sewage Disposal 

Systems 457 

Appendix L Alternate Plumbing Systems 469 

USEFUL TABLES 475 

INDEX 483 

HISTORY NOTE 

APPENDIX 504 



2010 CALIFORNIA PLUMBING CODE 



XIX 



HOW TO DISTINGUISH MODEL CODE LANGUAGE 
FROM CALIFORNIA AMENDMENTS 



To distinguish between model code language and incorporated California amendments, includ- 
ing exclusive Califomia standards, Califomia amendments will appear in italics. Symbols indi- 
cate the status of code changes as follows: 

[SFM] This symbol following a section leader identifies which state agency(s) have amended a sec- 
tion of model code. For a complete listing of state agencies, refer to the Apphcation Sections 
within Chapter 1, Division I. 

II This symbol in the margin indicates that a change has been made to a Califomia amendment. 

S This symbol in the margin indicates deletion of Califomia language. 



2010 CALIFORNIA PLUMBING CODE 




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Uniform Plumbing Code Illustrated Training Manual: 

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Uniform Plumbing Code Study Guide: 

This book is the perfect complement to the UPC Illustrated Training Manual. Alone, it constitutes a complete self-study 
course for learning the UPC. It has hundreds of questions, general practice exams, and plumbing math, pipe sizing exer- 
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Uniform Plumbing Code Answer & Analysis Manual: 

This increasing popular manual is the result of ongoing work by lAPMO's Answers & Analysis Committee. It contains 
hundreds of questions and answers that encompass three editions of the UPC. Many of these questions arise in the daily 
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Cumulative Analysis of Uniform Plumbing Code Changes: 

An excellent reference for learning and understanding plumbing code changes and identifies code changes between edi- 
tions. It is a useful tool for preparing code change proposals. 

Uniform Mechanical Code - 2009 Edition: 

The Uniform Mechanical Code contains complete requirements for the installation and maintenance of heating, ventilat- 
ing, cooking and refrigeration systems. 

Uniform Mechanical Code Illustrated Training Manual: 

Contains technical diagrams and illustrations that demonstrate the intent and use of the UMC. Agreat reference for every- 
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The Study Guide is a complete self-study course for learning the UMC. A big help in getting ready for a certification 
exam! This book is the perfect complement to the UMC Illustrated Training Manual. 



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Uniform Mechanical Code Answer & Analysis Manual: 

This increasing popular manual is the result of ongoing work by lAPMO's Answers & Analysis Committee. It contains 
hundreds of questions and answers that encompass three editions of the UMC. Many of these questions arise in the daily 
administration of the code. 

Cumulative Analysis of Uniform Mechanical Code Changes: 

The UMC Cumulative Analysis is a very useful tool in targeting the latest changes between editions of the code. It is an 
excellent guide for anyone proposing a UMC change. 

Uniform Swimming Pool, Spa, and Hot Tub Code - 2009 Edition: 

The Uniform Swimming Pool, Spa and Hot Tub Code contains complete and current requirements for the erection, instal- 
lation, alteration, repair, relocation, replacement, addition to and use or maintenance of these systems. 

Uniform Solar Energy Code - 2009 Edition: 

The Uniform Solar Energy Code is a unique document that provides a complete set of regulations and guidelines that 
cover both plumbing and mechanical systems in one "turnkey" package. The code is ideal for use by inspectors, juris- 
dictions and the installation industry. 

Drain Waste and Vent Calculator: 

A slide-rule style calculator provides quick and simple access to the fixture unit and sizing tables of Chapter 7 of the UPC. 

Water Sizing Calculator: 

Sizing water systems becomes a much simpler task with the use of this handy slide-rule style calculator. 

Natural Gas Pipe Sizing Calculator: 

This Natural Gas Pipe Sizing Calculator is presented in an easy to use and read slide-rule format. Designed for systems 
with a supply pressure of six to eight inches of water column, all pipe capacities are given in cubic feet per hour. 

Trailer Standards: 

lAPMO has developed a number of standards for specialty products used in manufactured homes and recreational vehi- 
cles. These standards are available individually, or they may be purchased as a set. 

Directory of Listed Plumbing Products: 

The lAPMO Listing Program was primarily created to benefit the building and plumbing officials that the products 
installed meet the appropriate standards and code. For a product to continue to be listed, unannounced inspections of the 
manufacturing facilities verify continued compliance. This directory contains information on several thousand lAPMO- 
listed plumbing products and is updated annually. 

Education and Training Seminars: 

lAPMO specializes in conducting training and education, including fulfilling continuing education requirements, on the 
UPC and UMC as well as all of the most commonly utilized codes in the Construction Trades. Special seminars on indus- 
try or code subjects are expeditiously created and delivered upon request. Please call to obtain the seminar schedule or 
to arrange for a custom special seminar. 

Backflow Prevention Institute - lAPMO 

The lAPMO Backflow Prevention Institute provides professional education and training for the control of hazards to our 
water supply and is dedicated to water-system safety worldwide. The Institute provides training in backflow prevention 
and cross-connection control. This program includes backflow preventers, testers, repairers, cross-connection control sur- 
veyors, program administrators and fire- sprinkler backflow preventer testers. Each of these courses provides compliance 
certification to American Society of Sanitary Engineering (ASSE) Series 5000 Professional Qualification Standards. 

2010 CALIFORNIA PLUMBING CODE 



RELATED PUBLICATIONS AND SERVICES 

The Documents Listed are Not by this Reference Adopted by The State of California. 



Backflow Prevention Reference Manual: 

This unique 300-page manual contains full-color illustrations and sections relating to real-world installations, backflow 
prevention, testing cross-connection control, repair and inspections. The manual is an excellent textbook and a reference 
the inspectors in every jurisdiction should have access too. It is also an important resource for system designers, urban 
planners and utility companies - professionals on both sides of the water meter. 

Drinking Water & Backflow Prevention Magazine: 

A monthly subscription to Drinking Water & Backflow Prevention Magazine provides current and valuable information 
regarding this critical public health topic. Subjects range from actual incident reporting, application of the newest tech- 
nology, and general interest articles including fire systems, irrigation systems, and security as well as installation, inspec- 
tion and repair tips. 

Backflow Prevention Tech-Wheel: 

Find quick answers to your backflow preventer questions! The Backflow Tech- Wheel contains a wealth of information 
in a graphic, quick reference format. One side delivers solutions to device application questions; the other a trou- 
bleshooting guides offering solutions to backflow problems. 

ANSI Z 124 Standards: 

These standards are written to specifically address a variety of plastic plumbing fixtures and components. They are avail- 
able individually, or may be grouped for quantity discounts. 

lAPMO Installation Standards: 

lAPMO standards committees have formulated installation standards for a wide variety of commonly used plumbing 
materials and systems. The lAPMO installation standards are included after the text of the Uniform Plumbing Code, or 
can be purchased separately. 

Material and Property Standards: 

lAPMO does not generally develop material and property standards, but when a need exists the Association will take a 
leadership role by filling the void. They are available, are subject to amendments and are withdrawn when recognized 
consensus standards are formulated. 

OFFICIAL Magazine: 

lAPMO's bimonthly publication features informative articles related to plumbing and Mechanical HVACR installations, 
award winning general interest features, technical columns and industry updates. Subscriptions are available and all 
lAPMO members receive a free copy of every issue! 

Membership in lAPMO: 

lAPMO membership is open to all interested persons. Membership categories include Student, Individual, Senior, 
Organizational and Governmental. Member benefits include discounted prices on lAPMO publications, a subscription to 
Official magazine, and numerous educational and training opportunities. 



HOW TO CONTACT lAPMO 

Mailing Address: 5001 East Philadelphia Street, Ontario, California 91761-2816 

Main Number: 909-472-4100 • Publication Orders: 800-85-IAPMO • Publication Fax: 877-85-CODES 

Website: www.iapmo.org • Office Hours: Monday - Friday, Sam - 5pm Pacific Time 



2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA MATRIX ADOPTION TABLES 

Format of the Matrix Adoption Tables 

The matrix adoption tables, which follow, show the user which state agencies have adopted and/or amended given sec- 
tions of model code for apphcations within their respective authorities. See Chapter 1, See Section 1.2.0 through 1.14.0, for 
building application and enforcement responsibilities. 

The side headings identify the scope of the state agencies' adoption as follows: 

Adopt the Entire UPC Chapter without state amendments 

If there is an "X" under a particular state agency's acronym on this row, this means that particular state agency has 
adopted the entire model code chapter without any state amendments. 



Example: 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 1 ■ ADMINISTRATION 



Adopting Agency 




Adopt Entire Chapter 



Adopt Entire Chapter as 
amended (amended sections 
listed below) 



Adopt only those sections 
that are listed below 



Chapter/Section 



101 



102 



Adopt the Entire UPC chapter as amended (amendments listed below) 

If there is an "X" under a particular state agency's acronym on this row, it means that particular state agency has 
adopted the entire model code chapter, with state amendments. 

Each state-amended section that the agency has added to that particular chapter is listed. There will be an "X" in the 
column, by that particular section, under the agency's acronym, as well as an "X" by each section that the agency has 
adopted. 

Example: 

Adopts only those section which are listed below: 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 1 - ADMINISTRATION 



Adopting Agency 




Adopt Entire Chapter 



Adopt Entire Chapter as 
amended (amended sections 
listed below) 



Adopt only those sections 
that are listed below 



Chapter/Section 



101 



102 



XXIV 



2010 CALIFORNIA PLUMBING CODE 



If there is an "X" under a particular state agency's acronym on this row, it means that particular state agency is adopting 
only specific model code or state-amended sections within this chapter. There will be an "X" in the column under the 
agency's acronym, as well as an "X" by each section that the agency has adopted. 



Example: 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 1 - ADMINISTRATION 



Adopting Agency 




Adopt Entire Chapter 



Adopt Entire Chapter as 
amended (amended sections 
listed below) 



Adopt only those sections 
that are listed below 



Chapter/Section 



101 



102 



Legend of Abbreviations of Adopting State Agencies 

BSC California Building Standards Commission 

SFM Office of the State Fire Marshal 

HCD Department of Housing and Community Development 

DSA-AC Division of the State Architect - Access Compliance 

DS A - SS Division of the State Architect - Structural Safety 

DSA - SS/CC Division of the State Architect - Community Colleges 

OSHPD Office of Statewide Health Planning and Development 

CSA Corrections Standards Authority 

DPH Department of Public Health 

AGR Department of Food and Agriculture 

DWR Department of Water Resources 

CA Department of Consumer Affairs 



2010 CALIFORNIA PLUMBING CODE 



2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 1 - ADMINISTRATION 



Adopting Agency 


BSC 


SFM 


HCD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


ss 


ss/cc 


1 


2 


3 


4 












Adopt Entire Chapter 




































Adopt Entire Chapter as 
amended (amended sections 
listed below) 




































Adopt only those sections 
that are listed below 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


Chapter/Section 


Division I - California 
Administration 




































1.1.0-1.1.7 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


1.1.8 


X 


X 


X 


X 


X 








X 


X 


X 


X 


X 


X 


X 


X 


X 


1.1.9-1.1.11 


X 


X 


X 


X 


X 




X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


X 


1.1.12 


X 


X 


X 


X 


X 








X 


X 


X 


X 


X 


X 


X 


X 


X 


1.2.0 


X 


































1.3.0 


























X 










1.4.0 


































X 


1.6.0 






























X 






1.7.0 




























X 








1.8.0 






X 


X 


X 


























1.9.0 












X 
























1.9.1 












X 
























1.9.2.1 














X 






















1.9.2.2 
















X 




















1.10.1 


















X 


















1.10.2 




















X 
















1.10.3 






















X 














1.10.4 
























X 












1.11.0 




X 
































1.13.0 
































X 




Division II - Administration 




































101.0-103.1.1 


















X 


X 


X 


X 












103.1.2 and subsections 






X 


X 










X 


X 


X 


X 












103.1.1 - 103.8 


















X 


X 


X 


X 













2010 CALIFORNIA PLUMBING CODE 



2010 CALIFORNIA PLUMBING CODE 



CHAPTER 1 

ADMINISTRATION 

DIVISION I 

CALIFORNIA ADMINISTRATION 



Ll.O General 

1.1.1 Title, These regulations shall be known as the Califor- 
nia Plumbing Code, may be cited as such and will be referred 
to herein as ''this code. '' The California Plumbing Code is 
Part 5 of twelve parts of the official compilation and publi- 
cation of the adoption, amendment, and repeal of plumbing 
regulations to the California Code of Regulations, Title 24, 
also referred to as the California Building Standards Code. 

II This part incorporates by adoption the 2009 Uniform Plumb- 
ing Code of the International Association of Plumbing and 
Mechanical Officials with necessary California amendments. 

1.1.2 Purpose. The purpose of this code is to establish the 
minimum requirements to safeguard the public health, safety 
and general welfare through structural strength, means of 
egress facilities, stability, access to persons with disabilities, 
sanitation, adequate lighting and ventilation, and energy con- 

II servation; safety to life and property from fire and other haz- 
ards attributed to the built environment; and to provide safety 
to fire fighters and emergency responders during emergency 
operations. 

1.1.3 Scope, The provisions of this code shall apply to the 
construction, alteration, movement, enlargement, replace- 
ment, repair, equipment, use and occupancy, location, main- 
tenance, removal, and demolition of every building or 
structure or any appurtenances connected or attached to such 
buildings or structures throughout the State of California, 

1.1.3.1 Non-State-Regulated Buildings, Structures, and 
Applications, Except as modified by local ordinance pur- 
suant to Section 1.1.8, the following standards in the Cal- 
ifornia Code of Regulations, Title 24, Parts 2, 2.5, 3, 4, 
5, 6, 9, 10 and 11 shall apply to all occupancies and 
applications not regulated by a state agency. 

1.1.3.2 State-Regulated Buildings, Structures, and 
Applications, The model code, state amendments to the 
model code, and/or state amendments where there are no 
relevant model code provisions shall apply to the fol- 
lowing buildings, structures, and applications regulated 
by state agencies as referenced in the Matrix Adoption 
Tables and as specified in Section L2.0 through 1.14.0, 
except where modified by local ordinance pursuant to 
Section 1.L8. When adopted by a state agency, the pro- 
visions of this code shall be enforced by the appropriate 
enforcing agency, but only to the extent of authority 
granted to such agency by the state Legislature. 

Note: See Preface to distinguish the model code provi- 
sions from the California provisions. 

1. State-owned buildings, including buildings con- 
structed by the Trustees of the California State Uni- 



5. 



6. 



versity, and to the extent permitted by California 
laws, buildings designed and constructed by the 
Regents of the University of California, and regu- 
lated by the Building Standards Commission. See 
Section 1.2.0 for additional scope provisions. 

2. Local detention facilities regulated by the Correc- 
tions Standards Authority. See Section 1.3.0 for 
additional scope provisions. 

3. Barbering, cosmetology or electrolysis establish- 
ments, acupuncture offices, pharmacies, veterinary 
facilities, and structural pest control locations reg- 
ulated by the Department of Consumer Affairs. See 
Section 1.4.0 for additional scope provisions. 

4. Reserved for the California Energy Commission. See 
Section 1.5.0 for additional scope provisions. 

Dairies and places of meat inspection regulated by 
the Department of Food and Agriculture. See Sec- 
tion 1.6.0 for additional scope provisions. 

Organized camps, laboratory animal quarters, pub- 
lic swimming pools, radiation protection, commis- 
saries serving mobile food preparation vehicles, and 
wild animal quarantine facilities regulated by the 
Department of Public Health. See Section 1. 7.0 for \\ 
additional scope provisions. 

7. Hotel, motels, lodging houses, apartment houses, 
dwellings, dormitories, condominiums, shelters for 
homeless persons, congregate residences, employee 
housing, factory-built housing, and other types of 
dwellings containing sleeping accommodations with 
or without common toilets or cooking facilities. See 
Section 1.8.2.1.1 for additional scope provisions. 

8. Accommodations for persons with disabilities in 
buildings containing newly constructed covered 
multifamily dwellings, new common use spaces serv- 
ing existing covered multifamily dwellings, additions 
to existing buildings where the addition alone meets 
the definition of "COVERED MULTIFAMILY^ 
DWELLINGS," and common-use spaces serving^ 
covered multifamily dwellings which are regulated 
by the Department of Housing and Community 
Development. See Section 1.8,2.1.2 for additional 
scope provisions. 

9. Permanent buildings and permanent accessory 
buildings or structures constructed within mobile- 
home parks and special occupancy parks regulated 
by the Department of Housing and Community 
Development. See Section 1.8.2.1.3 for additional 
scope provisions. 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION I 



10. Accommodations for persons with disabilities regu- 
lated by the Division of the State Architect See Sec- 
tion 1.9 J for additional scope provisions. 

11. Public elementary and secondary schools, commu- 
nity college buildings, and state-owned or state- 
leased essential service buildings regulated by the 
Division of the State Architect. See Section 1.9.2 for 
additional scope provisions. 

12. Reserved for the State Historical Building Safety 
Board with the Division of the State Architect. See 
Section 1.9.3 for additional scope provisions. 

13. General acute care hospitals, acute psychiatric hos- 
pitals, skilled nursing and/or intermediate care facil- 
ities, clinics licensed by the Department of Public 
Health, and correctional treatment centers regulated 
by the Office of Statewide Health Planning and 
Development. See Section 1.10.0 for additional 
scope provisions. 

14. Applications regulated by the Office of State Fire 
Marshal include but are not limited to following in 
accordance with Section 1.11.0: 

1 . Buildings or structures used or intended for use 
as an: 

1 . 1 Asylum, Jail, prison. 

1.2 Mental hospital, hospital, home for the eld- 
erly, children's nursery, children's home or 
institution, school or any similar occupancy of 
any capacity. 

1.3. Theater, dancehall, skating rink, auditorium, 
assembly hall, meeting hall, nightclub, fair build- 
ing, or similar place of assemblage where 50 or 
more persons may gather together in a building, 
room or structure for the purpose of amusement, 
entertainment, instruction, deliberation, worship, 
drinking or dining, awaiting transportation, or 
education. 

1.4. Small family day care homes, large family 
day-care homes, residential facilities and resi- 
dential facilities for the elderly, residential care 
facilities. 

1.5. State institutions or other state-owned or 
state-occupied buildings. 

1.6. High rise structures. 

1.7. Motion picture production studios. 

1.8. Organized camps. 

1.9. Residential structures. 

2. Tents, awnings or other fabric enclosures used 
in connection with any occupancy. 

3. Fire alarm devices, equipment and systems in 
connection with any occupancy. 

4. Hazardous materials, flammable and com- 
bustible liquids. 

5. Public school automatic fire detection, alarm 
and sprinkler systems. 

6. Wildland-urban interface fire areas. 



15. Public libraries constructed and renovated using 
funds from the California Library Construction and 
Renovation Bond Act of 1988 and regulated by the 
State Librarian. See Section 1.12.0 for additional 
scope provisions. 

16. Graywater systems regulated by the Department of 
Water Resources. See Section 1.13.0 for additional 
scope provisions. 

1 7. For applications listed in Section 1.9.1 regulated by 
the Division of the State Architect ~ Access Compli- 
ance, outdoor environments and uses shall be clas- 
sified according to accessibility uses described in 
Chapter 11 A, IIB, and IIC. 

18. Marine Oil Terminals regulated by the California 
State Lands Commission. See Section 1.14.0 for 
additional scope provisions. 

LL4 Appendices, Provisions contained in the appendices of 
this code shall not apply unless specifically adopted by a state 
agency or adopted by a local enforcing agency in compliance 
with Health and Safety Code Section 18901 et seq.for Build- \ 
ing Standards Law, Health and Safety Code Section 1 7950 
for State Housing Law and Health and Safety Code Section 
13869. 7 for Fire Protection Districts. See Section 1.1.8 of this 
code. 

LL5 Referenced Codes. The codes, standards and publica- 
tions adopted and set forth in this code, including other codes, 
standards and publications referred to therein are, by title and 
date of publication, hereby adopted as standard reference 
documents of this code. When this code does not specifically 
cover any subject related to building design and construction, 
recognized architectural or engineering practices shall be 
employed. The National Fire Codes, standards, and the Fire \ 
Protection Handbook of the National Fire Protection Asso- 
ciation are permitted to be used as authoritative guides in 
determining recognized fire prevention engineering practices. 

1.L6 Non-Building Standards, Orders, and Regulations, 

Requirements contained in the Uniform Plumbing Code, or 
in any other referenced standard, code or document, which 
are not building standards as defined in Health and Safety 
Code Section 18909 shall not be construed as part of the pro- 
visions of this code. For nonbuilding standards, orders, and 
regulations, see other titles of the California Code of Regu- 
lations. 
1.1. 7 Order of Precedence and Use. 

1.1.7.1 Differences. In the event of any differences 
between these building standards and the standard ref- 
erence documents, the text of these building standards 
shall govern. 

1.1.7.2 Specific Provisions. Where a specific provision 
varies from a general provision, the specific provision 
shall apply. 

1.1.7.3 Conflicts. When the requirements of this code 
conflict with the requirements of any other part of the 
California Building Standards Code, Title 24, the most 
restrictive requirements shall prevail. 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION I 



1.1.8 City, County, or City and County Amendments, Addi- 
tions or Deletions. The provisions of this code do not limit 
the authority of city, county, or city and county governments 
to establish more restrictive and reasonably necessary dif- 
ferences to the provisions contained in this code pursuant to 
complying with Section 1.1.8.1. The effective date ofamend- 

I ments, additions, or deletions to this code by city, county, or 
\city and county filed pursuant to Section 1.1.8.1 shall be the 
date filed. However, in no case shall the amendments, addi- 
tions or deletions to this code be effective any sooner than the 
effective date of this code. 

Local modifications shall comply with Health and Safety 
Code Section 18941.5 for Building Standards Law, Health 
and Safety Code Section 17958 for State Housing Law or 
Health and Safety Code Section 13869. 7 for Fire Protection 
Districts. 

IJ.8.1 Findings and Filings. 

L The city, county, or city and county shall make 
express findings for each amendment, addition or 
deletion based upon climatic, topographical, or geo- 
logical conditions. 

Exception: Hazardous building ordinances and pro- 
grams mitigating unreinforced masonry buildings. 

2. The city, county, or city and county shall file the 
amendments, additions or deletions expressly marked 
and identified as to the applicable findings. Cities, 
counties, cities and counties, and fire departments 
shall file the amendments, additions or deletions, and 
the findings with the California Building Standards 
Commission at 2525 Natomas Park Drive, Suite 130, 
Sacramento, CA 95833. 

3. Findings prepared by fire protection districts shall be 
ratified by the local city, county, or city and county and 
filed with the California Department of Housing and 

Community Development, Division of Codes and 
Standards, P.O. Box 1407, Sacramento, CA 95812- 
1407 or 1800 3rd Street, Room 260, Sacramento, CA 
95811. 

1.1.9 Effective Date of this Code. Only those standards 
approved by the California Building Standards Commission 
that are effective at the time an application for building per- 
mit is submitted shall apply to the plans and specifications 
for, and to the construction performed under, that permit. For 
the effective dates of the provisions contained in this code, 
see the History Note page of this code. 

II LLIO Availability of Codes. At least one complete copy each 
of Titles 8, 19, 20, 24, and 25 with all revisions shall be main- 
tained in the office of the building official responsible for the 
administration and enforcement of this code. Each state 
department concerned and each city, county, or city and 
county shall have an up-to-date copy of the code available 
for public inspection. See Health and Safety Code Section 
18942 (d)(1) and (2). 



l.Lll Format. This part fundamentally adopts the Uniform 
Plumbing Code by reference on a chapter-by-chapter basis. 
Such adoption is reflected in the Matrix Adoption Table of 
each chapter of this part. When the Matrix Adoption Tables 
make no reference to a specific chapter of the Uniform 
Plumbing Code, such chapter of the Uniform Plumbing Code 
is not adopted as a portion of this code. 

1.1.12 Validity. If any chapter, section, subsection, sentence, 
clause or phrase of this code is for any reason held to be 
unconstitutional, contrary to statute, exceeding the authority 
of the state as stipulated by statutes or otherwise inoperative, 
such decision shall not affect the validity of the remaining 
portion of this code. 

1.2. Building Standards Commission. 

1.2.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

1. State Buildings for A II Occupancies, 

Application - State buildings (all occupancies), includ- 
ing buildings constructed by the Trustees of the Califor- 
nia State University and the Regents of the University of 
California where no state agency has the authority to 
adopt building standards applicable to such buildings. 

Enforcing Agency - State or local agency specified by 
the applicable provisions of law. 

Authority Cited - Health and Safety Code Section 
18934.5. 

Reference - Health and Safety Code, Division 13, Part 
2.5, commencing with Section 18901, 

2. University of California^ California State Universities, 
and California Community Colleges. 

Application - Standards for lighting for parking lots and 
primary campus walkways at the University of Califor- 
nia, California State Universities, and California Com- 
munity Colleges. 

Enforcing Agency - State or local agency specified by 
the applicable provisions of law. 

Authority Cited- Government Code Section 14617. 

Reference - Government Code Section 14617. 

3. Existing State-Owned Buildings, including those 
owned by the University of California and by the Cali- 
fornia State University - Building seismic retrofit stan- 
dards including abating falling hazards of structural and 
nonstructural components and strengthening of building 
structures. See also Division of the State Architect. 

Enforcing Agency - State or local agency specified by 
the applicable provisions of law. 

Authority Cited- Government Code Section 16600. 

References - Government Code Sections 16600 through 
16604. 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION I 



4, Unreinforced Masonry Bearing Wall Buildings, 

Application - Minimum seismic strengthening standards 
for buildings specified in Appendix Chapter 1 of the Cal- 
ifornia Code for Building Conservation, except for build- 
ings subject to building standards adopted pursuant to 
Part 1.5 (commencing with Section 17910), 

Enforcing Agency - State or local agency specified by 
the applicable provisions of law. 

Authority Cited - Health and Safety Code Section 
18934.6. 

References - Health and Safety Code Sections 18901 
through 18949. 

1,2,2 Alternative Materials, Design, and Methods of Con- 
struction and Equipment. 

The provisions of this code are not intended to prevent the 
installation of any material or to prohibit any design or 
method of construction not specifically prescribed by this 
code, provided that any such alternative has been approved. 
An alternative material, design or method of construction 
shall be approved where the building official finds that the 
proposed design is satisfactory and complies with the intent 
of the provisions of this code, and that the material, method 
or work offered is, for the purpose intended, at least the equiv- 
alent of that prescribed in this code in quality, strength, effec- 
tiveness, fire resistance, durability, and safety. 

1.2.2.1 Research Reports, Supporting data, where nec- 
essary to assist in the approval of materials or assem- 
blies not specifically provided for in this code, shall 
consist of valid research reports from approved sources. 

1.2.2.2 Tests, Whenever there is insufficient evidence of 
compliance with the provisions of this code, or evidence 
that a material or method does not conform to the 
requirements of this code, or in order to substantiate 
claims for alternative materials or methods, the building 
official shall have the authority to require tests as evi- 
dence of compliance to be made at no expense to the 
jurisdiction. Test methods shall be as specified in this 
code or by other recognized test standards. In the 
absence of recognized and accepted test methods, the 
building official shall approve the testing procedures. 
Tests shall be performed by an approved agency Reports 
of such tests shall be retained by the building official for 
the period required for retention of public records. 

1.3.0 Corrections Standards Authority. 

1.3.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

Application - Local detention facilities. 

Enforcing Agency - Corrections Standards Authority. 

Authority Cited -Penal Code Section 6030; Welfare and 
Institutions Code Sections 210 and 885. 



References - Penal Code Section 6030; Welfare and 
Institutions Code Sections 210 and 885. 



1.4.0 Department of Consumer Affairs. 

1.4.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

Board of Bartering and Cosmetology. 

Application - Any establishment or mobile unit where 
barbering, cosmetology, or electrolysis is being per- 
formed. 

Enforcing Agency - State or local agency specified by 
applicable provisions of law. 

Authority Cited - Business and Professions Code Sec- 
tion 7312. 

References - Business and Professions Code Sections 
7303, 7303.1, 7312, and 7313. 

1.5,0 Reserved for California Energy Commission, 

1.6.0 Department of Food and Agriculture, 

1.6.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

Application - Dairies and places of meat and poultry 
inspection. 

Enforcing Agency - Department of Food and Agricul- 
ture. 

Authority Cited - Food and Agricultural Code Sections 
18735, 18960, 19384, 33481, and 33731. 

References - Food and Agricultural Code Sections 
18735, 18960, 19384, 33481, and 33731. 

1. 7. Department of Public Health, \ 

1. 7.1 Specific scope of application of the agency responsible 
for enforcement, the enforcement agency, and the specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

Department of Public Health, \ 

Application - Commissaries serving mobile food prepa- 
ration units, food establishments, and organized camps. 

Enforcing Agency - Department of Health Services and 
local health agency. 

Authority Cited - Health and Safety Code Sections 
18897.2, 110065, 113710, and 131200. \ 

References - Health and Safety Code Sections 18897.2, 
18897.4, 18897.7, 110065, 113705, 113710, and 131200. \ 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION I 



1. 8. Department of Housing and Community Development, 
[HCD] 

1.8.1 Purpose, The purpose of this code is to establish mini- 
II mum requirements to protect the health, safety, and general 

welfare of the occupants and the public by governing the erec- 
tion, construction, reconstruction, enlargement, conversion, 
alteration, repair, moving, removal, demolition, sanitation, 
ventilation, and maintenance or use of plumbing equipment 
or systems. 

1.8.2 Authority and Abbreviations, 

1,8,2,1 General, The Department of Housing and Com- 
munity Development is authorized by law to promulgate 
and adopt building standards and regulations for several 
types of building applications. These applications are 
grouped and identified by abbreviation in the Matrix 
Adoption Tables to show which model code sections and 
amendments are applicable to each application. The 
applications under the authority of the Department of 
Housing and Community Development are listed in Sec- 
tions 1.8.2.1.1 through 1.8.2.1.3. 

1.8.2.1.1 Housing Construction. 

Application - Hotels, motels, lodging houses, apart- 
ment houses, dwellings, dormitories, condominiums, 
shelters for homeless persons, congregate residences, 
employee housing, factory-built housing, and other 
types of dwellings containing sleeping accommoda- 
tions with or without common toilet or cooking facil- 
ities including accessory buildings, facilities, and uses 
thereto. Sections of this code which pertain to appli- 
cations listed in this section are identified in the Matrix 
Adoption Table using the abbreviation 'HCD 1 ". 

Enforcing Agency ~ Local building department or 
the Department of Housing and Community Devel- 
opment. 

Authority Cited - Health and Safety Code Sections 
17040, 17050, 17920.9, 17921, 17921.3, 17921.6, 
17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 
17959.6, 18300, 18552, 18554, 18620, 18630, 18640, 
18670, 18690, 18691, 18865, 18871.3, 18871.4, 
18873, 18873.1, 18873.2, 18873.3, 18873.4, 18873.5, 
18938.3, 18944.11, and 19990; and Government 
Code Section 12955.1. 

References - Health and Safety Code Sections 
17000 through 17062.5, 17910 through 17995.5, 
18200 through 18700, 18860 through 18874, and 
19960 through 19997; and Government Code Sec- 
tions 12955.1 and 12955.1.1. 

1. 8.2.1.2 Housing Accessibility. 

Application - Covered multifamily dwellings as 
defined in Chapter 11 A of the California Code of Reg- 
ulations, Title 24, Part 2, also known as the Califor- 
nia Building Code (CBC) including but not limited to 
lodging houses, dormitories, timeshares, condomini- 
ums, shelters for homeless persons, congregate resi- 
dences, apartment houses, dwellings, employee 
housing, factory-built housing, and other types of 
dwellings containing sleeping accommodations with 
or without common toilet or cooking facilities. 



Sections of this code identified in the Matrix 
Adoption Table by the abbreviation 'HCD 1-AC" 
require specific accommodations for "PERSONS 
WITH DISABILITIES'' as defined in Chapter 11 A o, 
the CBC The application of such provisions shall 
be in conjunction with other requirements of this 
code and apply only to newly constructed ''COV- 
ERED MULTIFAMILY D WELLINGS'' as defined in 
Chapter 11 A of the CBC "HCD 1-AC" applications 
include, but are not limited to, the following: 

1. All newly-constructed "COVERED MULTI- 
FAMILY DWELLINGS" as defined in Chapter 
11 A of the CBC 

2. New "COMMON USE AREAS" as defined in 
Chapter 11 A of the CBC serving existing cov- 
ered multifamily dwellings. 

3. Additions to existing buildings, where the addi- 
tion alone meets the definition of "COVERED 
MULTIFAMILY DWELLINGS" as defined in 
Chapter 11 A of the CBC. 

4. Common use areas serving covered multifam- 
ily dwellings. 

5. Where any portion of a buildings exterior is 
preserved, but the interior of the building is 
removed, including all structural portions of 
floors and ceilings, the building is considered a 
new building for determining the application of 
CBC, Chapter 11 A. 

HCD I'AC building standards generally do not 
apply to public use areas or public accommodations 
such as hotels and motels. Public use areas, public 
accommodations and housing which is publicly 
funded as defined in Chapter 2 of the CBC are sub- 
ject to the Division of the State Architect (DSA-AC) 
and are referenced in Section 1.9.1. 

Enforcing Agency - Local building department or 
the Department of Housing and Community Devel- 
opment. 

Authority Cited - Health and Safety Code Sections 
17040, 17050, 17920.9, 17921, 17921.3, 17921.6, 
17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 
17959.6, 18300, 18552, 18554, 18620, 18630, 18640, 
18670, 18690, 18691, 18865, 18871.3, 18871.4, 
18873, 18873.1, 18873.2, 18873.3, 18873.4, 18873.5, 
18938.3, 18944.11, and 19990; and Government 
Code Section 12955. 1. 

References - Health and Safety Code Sections 
17000 through 17062.5, 17910 through 17995.5, 
18200 through 18700, 18860 through 18874, and 
19960 through 19997; and Government Code Sec- 
tions 12955. 1 and 12955. 1.1. I 

1,8.2,1,3 Permanent Buildings in Mobilehome 
Parks and Special Occupancy Parks, 

Application - Permanent buildings, and permanent 
accessory buildings or structures, constructed 
within mobilehome parks and special occupancy 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION I 



parks that are under the control and ownership of 
the park operator. Sections of this code which per- 
tain to applications listed in this section are identi- 
fied in the Matrix Adoption Table using the 
abbreviation ''HCD 2 ". 

Enforcing Agency - Local building department or 
other local agency responsible for the enforcement 
of Health and Safety Code Division 13, Part 2.1, 
commencing with Section 18200 for mobilehome 
parks and Health and Safety Code, Division 13, Part 
2.3, commencing with Section 18860 for special 
occupancy parks; or the Department of Housing and 
Community Development. 

Authority Cited - Health and Safety Code Sections 
17040, 17050, 17920.9, 17921, 17921.3, 17921.6, 
17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 
17959.6, 18300, 18552, 18554, 18620, 18630, 18640, 
18670, 18690, 18691, 18865, 18871.3, 18871.4, 
18873, 18873.1, 18873.2, 188733, 18873.4, 18873.5, 
18938.3, 18944.11, and 19990; and Government 
Code Section 12955.1. 

References - Health and Safety Code Sections 
17000 through 17062.5, 17910 through 17995.5, 
18200 through 18700, 18860 through 18874, and 
19960 through 19997; and Government Code Sec- 
II tions 12955.1 and 12955.1.1. 

L 8.3 Local Enforcing Agency, 

1.8.3.1 Duties and Powers, The building department of 
every city, county or city and county shall enforce all the 
provisions of law, this code, and the other rules and reg- 
ulations promulgated by the Department of Housing and 
Community Development pertaining to the installation, 
erection, construction, reconstruction, movement, 
enlargement, conversion, alteration, repair, removal, 
demolition, or arrangement of apartment houses, hotels, 
motels, lodging houses and dwellings, including acces- 
sory buildings, facilities, and uses thereto. 

The provisions regulating the erection and con- 
struction of dwellings and appurtenant structures shall 
not apply to existing structures as to which construction 
is commenced or approved prior to the effective date of 
these regulations. Requirements relating to use, mainte- 
nance and occupancy shall apply to all dwellings and 
appurtenant structures approved for construction or con- 
structed before or after the effective date of this code. 

For additional information regarding the use and 
occupancy of existing buildings and appurtenant struc- 
tures, see California Code of Regulations, Title 25, 
II Division 1, Chapter 1, Subchapter 1, commencing with 
Section 1. 

1.8.3.2 LawSf Rules, and Regulations. Other than the 
building standards contained in this code, and notwith- 
standing other provisions of law, the statutory author- 
ity and location of the laws, rules, and regulations to 
be enforced by local enforcing agencies are listed by 
statute in Sections 1.8.3.2.1 through 1.8.3.2.5 below: 

1.8,3,2,1 State Housing Law. Refer to the State 
Housing Law, California Health and Safety Code, 



Division 13, Part 1.5, commencing with Section 
1 7910 and California Code of Regulations, Title 25, 
Division 1, Chapter 1, Subchapter 1, commencing \\ 
with Section 1, for the erection, construction, recon- 
struction, movement, enlargement, conversion, alter- 
ation, repair, removal, demolition, or arrangement 
of apartment houses, hotels, motels, lodging houses 
and dwellings, including accessory buildings, facil- 
ities, and uses thereto. 

1.8.3.2.2 Mobilehome Parks Act Refer to the Mobile- 
home Parks Act, California Health and Safety Code, 
Division 13, Part 2.1, commencing with Section 18200 
and California Code of Regulations, Title 25, Division 
1, Chapter 2, commencing with Section 1000 for 
mobilehome park administrative and enforcement 
authority, permits, plans, fees, violations, inspections, 
and penalties both within and outside mobilehome 
parks. 

Exception: Mobilehome parks where the Depart- 
ment of Housing and Community Development is the 
enforcing agency. 

1.8.3.2.3 Special Occupancy Parks Act. Refer to the 
Special Occupancy Parks Act, California Health and 
Safety Code, Division 13, Part 2.3, commencing with 
Section 18860 and California Code of Regulations, 
Title 25, Division 1, Chapter 2.2, commencing with \\ 
Section 2000 for special occupancy park adminis- 
trative and enforcement authority, permits, fees, vio- 
lations, inspections, and penalties both within and 
outside of special occupancy parks. 

Exception: Special occupancy parks where the 
Department of Housing and Community Develop- 
ment is the enforcing agency 

1.8.3.2.4 Employee Housing Act. Refer to the 
Employee Housing Act, California Health and Safety 
Code, Division 13, Part 1, commencing with Section 
1 7000 and California Code of Regulations, Title 25, 
Division 1, Chapter 1, Subchapter 3, commencing\\ 
with Section 600 for employee housing administra- 
tive and enforcement authority, permits, fees, viola- 
tions, inspections, and penalties. 

1.8.3.2.5 Factory-Built Housing Law. Refer to the \\ 
Factory-Built Housing Law, California Health and 
Safety Code, Division 13, Part 6 commencing with 
Section 19960 and California Code of Regulations, 
Title 25, Division 1, Chapter 3, Subchapter 1, com- \\ 
mencing with Section 3 000 for factory-built housing 
administrative and enforcement authority, permits, 
fees, violations, inspections, and penalties. 

1.8.4 Permits, Fees, Applications, and Inspections. 

1.8.4.1 Permits. A written construction permit shall be 
obtained from the enforcing agency prior to the erection, 
construction, reconstruction, installation, relocation, or 
alteration of any plumbing system. 

Exceptions: 

1. Work exempt from permits as specified in Chapter || 
1, Administration, Division II, Sections 103.1.2.l\\ 
and 103.1.2.2 of this code. 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION I 



2. Changes, alterations, or repairs of a minor nature not 
affecting structural features, egress, sanitation, safety, 
or accessibility as determined by the enforcing agency. 

Exemptions from permit requirements shall not 
be deemed to grant authorization for any work to be 
done in any manner in violation of other provisions 
of law or this code. 

1.8.4.2 Fees, Subject to other provisions of law, the gov- 
erning body of any city, county, or city and county may 
prescribe fees to defray the cost of enforcement of rules 
and regulations promulgated by the Department of Hous- 
ing and Community Development The amount of the fees 
shall not exceed the amount reasonably necessary to 
administer or process permits, certificates, forms, or 
other documents, or to defray the costs of enforcement 
For additional information, see State Housing Law, 
Health and Safety Code, Division 13, Part 1.5, Section 
17951 and California Code of Regulations, Title 25, 
Division 1, Chapter 1, Subchapter 1, Article 3, com- 
mencing with Section 6. 

1.8.4.3 Plan Review and Time Limitations. Subject to 
other provisions of law, provisions related to plan check- 
ing, prohibition of excessive delays, and contracting with 
or employment of private parties to perform plan check- 
ing are set forth in the State Housing Law, Health and 
Safety Code Section 1 7960. 1, and for employee housing, 
in Health and Safety Code Section 1 7021. 

1.8,4,3,1 Retention of Plans, The building depart- 
ment of every city, county, or city and county shall 
maintain an official copy, microfilm, or electronic 
or other type of photographic copy of the plans of 
every building, during the life of the building, for 
which the department issued a building permit 

Exceptions: 

1. Single or multiple dwellings not more than two 
stories and basement in height. 

2. Garages and other structures appurtenant to 
buildings listed in Exception 1. 

3. Farm or ranch buildings appurtenant to build- 
ings listed in Exception 1. 

4. Any one-story building where the span between 
bearing walls does not exceed 25 feet (7620 
mm), except a steel frame or concrete building. 

All plans for common interest develop- 
ments as defined in Section 1351 of the Cali- 
fornia Civil Code shall be retained. For 
additional information regarding plan retention 
and reproduction of plans by an enforcing 
agency, see Health and Safety Code Sections 
19850 through 19852. 

1.8.4.4 Inspections. Construction or work for which a 
permit is required shall be subject to inspection by the 
building official and such construction or work shall 
remain accessible and exposed for inspection purposes 
until approved. Approval as a result of an inspection 
shall not be construed to be an approval of a violation of 



the provisions of this code or other regulations of the 
Department of Housing and Community Development. 

1.8.5 Right of Entry for Enforcement, 

1.8.5.1 General, Subject to other provisions of law, offi- 
cers and agents of the enforcing agency may enter and 
inspect public and private properties to secure compli- 
ance with the rules and regulations promulgated by the 
Department of Housing and Community Development. 
For limitations and additional information regarding 
enforcement, see the following: 

1. For applications subject to State Housing Law as 
referenced in Section 1.8.3.2.1 of this code, refer to 
Health and Safety Code, Division 13, Part 1.5, com- 11 
mencing with Section 17910 and California Code o/|| 
Regulations, Title 25, Division 1, Chapter 1, Sub- 
chapter 1, commencing with Section 1. II 

2. For applications subject to the Mobilehome Parks A ct 
as referenced in Section 1.8.3.2.2 of this code, refer to 
Health and Safety Code, Division 13, Part 2.1, com- \\ 
mencing with Section 18200 and California Code of 
Regulations, Title 25, Division 1, Chapter 2, com- 
mencing with Section 1000. 

3. For applications subject to the Special Occupancy 
Parks Act as referenced in Section 1.8.3.2.3 of this 
code, refer to Health and Safety Code Division 13,}\ 
Part 2.3, commencing with Section 18860 and Cali- II 
fornia Code of Regulations, Title 25, Division 1, 

Chapter 2.2, commencing with Section 2000. II 

4. For applications subject to the Employee Housing Act 
as referenced in Section 1.8.3.2.4 of this code, refer to 
Health and Safety Code, Division 13, Part 1, com 
mencing with Section 1 7000 and California Code of\ 
Regulations, Title 25, Division 1, Chapter 1, Sub- 
chapter 3, commencing with Section 600. II 

5. For applications subject to the Factory-Built Housing 
Law as referenced in Section 1.8.3.2.5 of this code, 
refer to Health and Safety Code, Division 13, Part 6, 
commencing with Section 19960 and California Code 
of Regulations, Title 25, Division 1, Chapter 3, Sub- 
chapter 1, commencing with Section 3000. I 

1.8.6 Local Modification by Ordinance or Regulation, 

1,8.6.1 General Subject to other provisions of law, a city, 
county or city and county may make changes to the provi- 
sions adopted by the Department of Housing and Commu- 
nity Development If any city, county, or city and county 
does not amend, add, or repeal by local ordinances or reg- 
ulations the provisions published in this code or other reg- 
ulations promulgated by the Department of Housing and 
Community Development, those provisions shall be appli- 
cable and shall become effective 180 days after publica- 
tion by the California Building Standards Commission. 
Amendments, additions, and deletions to this code adopted 
by a city, county or city and county pursuant to California 
Health and Safety Code Sections 17958.5, 17958.7, and 
18941.5, together with all applicable portions of this code, 
shall also become effective 180 days after publication of 
the California Building Standards Code by the California 
Building Standards Commission. 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION I 



1,8,6,2 Findings, Filings, and Rejections of Local Mod- 
ifications, Prior to making any modifications or estab- 
lishing more restrictive building standards, the governing 
body shall make express findings and filings, as required 
by California Health and Safety Code Section 1 7958. 7, 
I showing that such modifications are reasonably neces- 
sary due to local climatic, geological, or topographical 
conditions. No modification shall become effective or 
operative unless the following requirements are met: 

1. The express findings shall be made available as a 
public record. 

2. A copy of the modification and express finding, each 
document marked to cross-reference the other, shall 
be filed with the California Building Standards 
Commission for a city, county, or a city and county, 
and with the Department of Housing and Commu- 
nity Development for fire protection districts. 

3. The California Building Standards Commission has 
not rejected the modification or change. 

Nothing in this section shall limit the authority 
of fire protection districts pursuant to California 
Health and Safety Code Section 13869.7(a). 

1,8,7 Alternate Materials, Designs, Tests, and Methods of 
Construction, 

1.8. 7.1 General The provisions of this code as adopted by 
the Department of Housing and Community Development 
are not intended to prevent the use of any alternate mate- 
rial, appliance, installation, device, arrangement, design, 
or method of construction not specifically prescribed by 
this code. Consideration and approval of alternates shall 
comply with Section 1.8. 7.2 for local building departments 
and Section 1.8. 7.3 for the Department of Housing and 
Community Development 

1.8. 7.2 Local Building Departments, The building depart- 
ment of any city, county, or city and county may approve 
alternates for use in the erection, construction, recon- 
struction, movement, enlargement, conversion, alteration, 
repair, removal, demolition, or arrangement of an apart- 
ment house, hotel, motel, lodging house, or dwelling or an 
accessory structure, except for the following: 

1. Structures located in mobilehome parks as defined 
in California Health and Safety Code Section 18214. 

2. Structures located in special occupancy parks as 
defined in California Health and Safety Code Sec- 
tion 18862.43. 

3. Factory -built housing as defined in California 
Health and Safety Code Section 19971. 

1,8, 7,2.1 Approval of Alternates, The consideration 
and approval of alternates by a local building 
department shall comply with the following proce- 
dures and limitations: 

1. The approval shall be granted on a case-by- 
case basis. 

2. Evidence shall be submitted to substantiate 
claims that the proposed alternate, in perform- 
ance, safety, and protection of life and health, 



conforms to, or is at least equivalent to, the 
standards contained in this code and other rules 
and regulations promulgated by the Department 
of Housing and Community Development 

3. The local building department may require tests 
performed by an approved testing agency at the 
expense of the owner or owner s agent as proof 
of compliance. 

4. If the proposed alternate is related to accessi- 
bility in covered multifamily dwellings or facil- 
ities serving ''COVERED MULTIFAMILY 
DWELLINGS" as defined in Chapter 11 A of the 
CBC, the proposed alternate must also meet the 
threshold set for ''EQUIVALENT FACILITA- 
TION'' as defined in Chapter 11 A of the CBC 

For additional information regarding approval 
of alternates by a local building department pur- 
suant to the State Housing Law, see California 
Health and Safety Code Section 17951(e) and Cali- 
fornia Code of Regulations, Title 25, Division 1, 
Chapter 1, Subchapter 1. 

1,8. 7.3 Department of Housing and Community Devel- 
opment, The Department of Housing and Community 
Development may approve alternates for use in the erec- 
tion, construction, reconstruction, movement, enlargement, 
conversion, alteration, repair, removal, or demolition of an 
apartment house, hotel, motel, lodging house, dwelling, or 
an accessory thereto. The consideration and approval of 
alternates shall comply with the following: 

1. The department may require tests at the expense of 
the owner or owner s agent to substantiate compli- 
ance with the California Building Standards Code. 

2. The approved alternate shall, for its intended pur- 
pose, be at least equivalent in performance and 
safety to the materials, designs, tests, or methods of 
construction prescribed by this code. 

1, 8, 8 Appeals Board, 

1.8.8.1 General, Every city, county, or city and county 
shall establish a local appeals board and a housing 
appeals board. The local appeals board and housing 
appeals board shall each be comprised of at least five vot- 
ing members who shall serve at the pleasure of the city, 
county or city and county. Appointees shall not be employ- 
ees of the jurisdiction and shall be qualified and specifi- 
cally knowledgeable in the California Building Standards 
Codes and applicable local ordinances. 

1.8.8.2 Definitions, The following terms shall for the 
purposes of this section have the meaning shown. 

Housing Appeals Board, The board or agency of a city, 
county or city and county which is authorized by the gov- 
erning body of the city, county, or city and county to hear 
appeals regarding the requirements of the city, county, or 
city and county relating to the use, maintenance, and 
change of occupancy of buildings and structures, includ- 
ing requirements governing alteration, additions, repair, 
demolition, and moving. In any area in which there is no 
such board or agency, "housing appeals board" means the 
local appeals board having jurisdiction over the area. 



10 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION I 



Local Appeals Board, The board or agency of a city, 
county, or city and county which is authorized by the gov- 
erning body of the city, county, or city and county to hear 
appeals regarding the building requirements of the city, 
county, or city and county. In any area in which there is 
no such board or agency, "local appeals board" means 
the governing body of the city, county, or city and county 
having jurisdiction over the area. 

1.8.83 Appeals, Except as otherwise provided by law, 
any person, firm, or corporation adversely affected by a 
decision, order, or determination by a city, county, or city 
and county relating to the application of building stan- 
dards published in the California Building Standards 
Code, or any other applicable rule or regulation adopted 
by the Department of Housing and Community Develop- 
ment, or any lawfully enacted ordinance by a city, county, 
or city and county, may appeal the issue for resolution 
to the local appeals board or housing appeals board as 
appropriate. 

The local appeals board shall hear appeals relating 
to new building construction and the housing appeals 
board shall hear appeals relating to existing buildings. 

1.8.9 Unsafe Buildings or Structures. 

1.8.9.1 Authority to Enforce. Subject to other provisions 
of law, the administration, enforcement, actions, pro- 
ceedings, abatement, violations, and penalties for unsafe 
buildings and structures are contained in the following 
statutes and regulations: 

1 . For applications subject to State Housing Law as ref- 
erenced in Section 1.8.3.2.1 of this code, refer to 

I Health and Safety Code, Division 13, Part 1.5, com- 

I mencing with Section 1 7910 and California Code of 

Regulations, Title 25, Division 1, Chapter 1, Sub- 
I chapter 1, commencing with Section 1. 

2. For applications subject to the Mobilehome Parks Act 
as referenced in Section 1.8.3.2.2 of this code, refer to 

I Health and Safety Code, Division 13, Part 2. 1, com- 

mencing with Section 18200 and California Code of 
Regulations, Title 25, Division 1, Chapter 2, com- 

I mencing with Section 1000. 

3. For applications subject to the Special Occupancy 
Parks Act as referenced in Section 1.8.3.2,3 of this 

I code, refer to Health and Safety Code, Division 13, 

I Part 2.3, commencing with Section 18860 and Cali- 

fornia Code of Regulations, Title 25, Division 1, 
I Chapter 2.2, commencing with Section 2000. 

4. For applications subject to the Employee Housing A ct 
as referenced in Section 1.8.3.2.4 of this code, refer to 
Health and Safety Code, Division 13, Part 1, com- 
mencing with Section 1 7000 and California Code of 
Regulations, Title 25, Division 1, Chapter 1, Sub- 

I chapter 3, commencing with Section 600. 

5. For applications subject to the Factory-Built Housing 
Law as referenced in Section 1.8.3.2.5 of this code, 
refer to Health and Safety Code, Division 13, Part 6, 
commencing with Section 19960 and California Code 
of Regulations, Title 25, Division 1, Chapter 3, Sub- 
chapter 1, commencing with Section 3000. 



L8.9.2 Actions and Proceedings. Subject to other pro- 
visions of law, punishments, penalties, and fines for vio- 
lations of building standards are contained in the 
following statutes and regulations: 

1. For applications subject to the State Housing Law 
as referenced in Section 1.8.3.2.1 of this code, refer 
to Health and Safety Code, Division 13, Part 1.5, 
commencing with Section 17910 and California 
Code of Regulations, Title 25, Division 1, Chapter 1, 
Subchapter 1, commencing with Section 1. 

2. For applications subject to the Mobilehome Parks 
Act as referenced in Section 1.8.3.2.2 of this code, 
refer to Health and Safety Code, Division 13, Part 
2.1, commencing with Section 18200 and California 
Code of Regulations, Title 25, Division 1, Chapter 2, 
commencing with Section 1000. II 

3. For applications subject to the Special Occupancy 
Parks Act as referenced in Section 1.8.3.2.3. of this 
code, refer to Health and Safety Code, Division 13, 
Part 2.3, commencing with Section 18860 and Cal- 
ifornia Code of Regulations, Title 25, Division 1, 
Chapter 2.2, commencing with Section 2000. 

4. For applications subject to the Employee Housing 
Act as referenced in Section 1.8.3.2.4 of this code, 
refer to Health and Safety Code, Division 13, Part 1, 
commencing with Section 17000 and California 
Code of Regulations, Title 25, Division 1, Chapter 1, 
Subchapter 3, commencing with Section 600. 

5. For applications subject to the Factory-Built Housing 
Law as referenced in Section 1.8.3.2.5 of this code, 
refer to Health and Safety Code, Division 13, Part 6, 
commencing with Section 19960 and California Code 
of Regulations, Title 25, Division 1, Chapter 3, Sub- 
chapter 1, commencing with Section 3000. II 

1.8.10 Other Building Regulations. 

1.8.10.1 Existing Structures. Notwithstanding other pro- 
visions of law, the replacement, retention, and extension 
of original materials and the use of original methods of 
construction for any existing building or accessory struc- 
ture, or portions thereof shall be permitted. For addi- 
tional information, see California Health and Safety 
Code Sections 1 7912 and 1 7958.8. 

1.8.10.2 Moved Structures. Subject to the requirements 
of California Health and Safety Code Sections 17922.3 
and 1 7958.9, local ordinances or regulations relating to 
a moved residential or accessory structure shall, after 
July 1, 1978, permit the retention of existing materials 
and methods of construction so long as the structure does 
not become or continue to be a substandard building. 

Note: 

Authority Cited -Health and Safety Code Sections 17040, 
17050, 17920.9, 17921, 17921.3, 17921.6, 17921.10, 
17922, 17922.6, 17922.12, 17927, 17928, 17959.6, 18300, 
18552, 18554, 18620, 18630, 18640, 18670, 18690, 
18691, 18865, 18871.3, 18871.4, 18873, 18873.1, 
18873.2, 18873.3, 18873.4, 18873.5, 18938.3, 18944.11, 
and 19990; and Government Code Section 12955,1. 



2010 CALIFORNIA PLUMBING CODE 



11 



ADMINISTRATION DIVISION I 



References - Health and Safety Code Sections 1 7000 
through 17062.5, 17910 through 17995,5, 18200 through 
18700, 18860 through 18874, and 19960 through 19997; 
and Government Code Sections 12955.1 and 12955.1.1. 



1.9.0 Division of the State Architect. 

1.9.1 Division of the State Architect-Access Compliance. 

Note: For applications listed in Section 1.9.1 of the Califor- 
nia Building Code, regulated by the Division of the State 
Architect - Access Compliance see California Code of Reg- 
ulations, Title 24, Part 2 (California Building Code), Chap- 
ter 1 (Division 1 California Administration) under authority 
cited by Government Code Section 4450 and in reference 
cited by Government Code Sections 4450 through 4461, 
12955.1, and Health and Safety Code Sections 18949.1, 
19952 through 19959. 

1.9.2 Division of the State Architect - Structural Safety. 

1.9.2.1. DSA-SS (Division of the State Architect -Structural 
Safety). 

Application - Public elementary and secondary schools, 
community college buildings, and state-owned or state-leased 
essential services buildings. 

Enforcing Agency - (Division of the State Architect - Struc- 
tural Safety) (DSA - SS). 

The Division of the State Architect has been delegated 
the responsibility and authority by the Department of Gen- 
eral Services to review and approve the design and observe 
the construction of public elementary and secondary schools, 
community colleges, and state-owned or state-leased essen- 
tial services buildings. 

Authority Cited - Education Code Section 17310 and 81142, 
and Health and Safety Code Section 16022. 

References - Education Code Sections 1 7280 through 17317 
and 81130 through 81147, and Health and Safety Code Sec- 
tions 16000 through 16023. 

1.9.2.2. DSA-SS/CC (Division of the State Architect -Struc- 
tural Safety/Community Colleges). 

Application - Community Colleges. 

The Division of the State Architect has been delegated 
the authority by the Department of General Services to prom- 
ulgate alternate building standards for application to com- 
munity colleges, which a community college may elect to use 
in lieu of standards promulgated by DSA-SS in accordance 
with Section 1.9.2.1. Refer to Title 24, Part 2, Section 1.9.2.2. 

Enforcing Agency - Division of the State Architect - Struc- 
tural Safety/Community Colleges (DSA-SS/CC). 

The Division of the State Architect has been delegated 
the authority by the Department of General Services to review 
and approve the design and oversee construction of commu- 
nity colleges electing to use the alternative building standards 
as provided in this section. 

Authority Cited - Education Code Section 81053. 

References - Education Code Sections 81052, 81053, and 
81130 through 81147. 



1.10.0 Office of Statewide Health Planning and Development 

1.10.1 OSHPD 1. Specific scope of application of the agency 
responsible for enforcement, enforcement agency, specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

OSHPD 1 

Application - General acute-care hospitals and acute 
psychiatric hospitals, excluding distinct part units or dis- 
tinct part freestanding buildings providing skilled nurs- 
ing or intermediate-care services. For Structural 
Regulations: Skilled nursing facilities and/or intermedi- 
ate-care facilities except those skilled nursing facilities 
and intermediate care facilities of single story, Type V, 
wood or light steel-frame construction. 
Enforcing Agency - Office of Statewide Health Plan- 
ning and Development (OSHPD). The office shall 
enforce the Division of the State Architect access com- 
pliance regulations and the regulations of the Office of 
the State Fire Marshal for the above stated facility types. 

1.10.1.1 Applicable Administrative Standards. 

1. Title 24, Part 1, California Code of Regulations: 
Chapters 6 and 7. 

2. Title 24, Part 2, California Code of Regulations : 
Sections 1.1.0 and LI 0.0, Chapter 1, Division I and 
Sections 101-117, Chapter 1, Division 11. 

1.10.1.2 Applicable Building Standards. California Build- 
ing Standards Code, Title 24, Parts 2, 3, 4, 5, 9, 10, and 11. 
Authority Cited - Health and Safety Code Sections 
127010, 127015, 1275, and 129850. 

References - Health and Safety Code Sections 19958, 
127010, 127015, 129680, 1275, and 129675 through 
130070. 

1.10.2 OSHPD 2. Specific scope of application of the agency 
responsible for enforcement, enforcement agency, specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

OSHPD 2 

Application - Skilled nursing facilities and intermedi- 
ate-care facilities, including distinct part skilled nursing 
and intermediate-care services on a general acute-care 
or acute psychiatric hospital license, provided either in 
a rate unit or a freestanding building. For Structural 
Regulations: Single-story, Type V skilled nursing facility 
and/or intermediate-care facilities utilizing wood or light 
steel-frame construction. 

Enforcing Agency - Office of Statewide Health Plan- 
ning and Development (OSHPD). The office shall also 
enforce the Division of the State Architect access com- 
pliance regulations and the regulations of the Office of 
the State Fire Marshal for the above stated facility type. 
1.10.2.1 Applicable Administrative Standards: 

1. Title 24, Part 1, California Code of Regulations : 
Chapter 7. 

2. Title 24, Part 2, California Code of Regulations: 
Sections 1.1.0 and 1.10.0, Chapter 1, Division Iand\\ 
Sections 101-117, Chapter 1, Division II. \\ 



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1,10,2,2 Applicable Building Standards. California 
Building Standards Code, Title 24, Parts 2, 3, 4, 5, 9, 10, 
and IL 

Authority Cited - Health and Safety Code Sections 
127010, 127015, 1275, and 129850. 

References - Health and Safety Code Sections 127010, 
127015, 1275, and 129680. 

1.10.3 OSHPD 3, Specific scope of application of the agency 
responsible for enforcement, enforcement agency, specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

OSHPD 3 

Application - Licensed clinics and any freestanding 
building under a hospital license where outpatient clin- 
ical services are provided. 

Enforcing Agency - Local building department. 

1. 10.3.1 Applicable Administrative Standards, 

1. Title 24, Part 1, California Code of Regulations : 
Chapter 7. 

2. Title 24, Part 2, California Code of Regulations: 

I Sections 1.1.0 and 1.10.0, Chapter 1, Division land 

I Sections 101-117, Chapter 1, Division IL 

1.10.3.2 Applicable Building Standards, California 
Building Standards Code, Title 24, Parts 2, 3, 4, 5, 9, 10, 

I and 11. 

Authority Cited - Health and Safety Code Sections 
127010, 127015, and 1226. 

References - Health and Safety Code Sections 127010, 
127015, 129885, and 1226, Government Code Section 
54350, and State Constitution Article 11, Section 7. 

1.10.4 OSHPD 4, Specific scope of application of the agency 
responsible for enforcement, enforcement agency, specific 
authority to adopt and enforce such provisions of this code, 
unless otherwise stated. 

OSHPD 4 

Application - Correctional Treatment Centers. 

Enforcing Agency - Office of Statewide Health Planning 
and Development (OSHPD). The office shall also enforce 
the Division of the State Architect access compliance reg- 
ulations and the regulations of the Office of the State Fire 
Marshal for the above stated facility types. 

1.10.4.1 Applicable Administrative Standards, 

1. Title 24, Part 1, California Code of Regulations: 
Chapter 7. 

2. Title 24, Part 2, California Code of Regulations: 
Sections 1.1.0 and 1.10.0, Chapter 1, Division I and 
Sections 101-117, Chapter 1, Division IL 

1.10.4.2 Applicable Building Standards, California 
Building Standards Code, Title 24, Parts 2, 3, 4, 5,9, 10 
and 11. 

Authority Cited - Health and Safety Code Sections 
127010, 127015, and 129790. 

References - Health and Safety Code Sections 127010, 
127015, 1275, and 129675 through 130070. 



1.11.0 Office of the State Fire Marshal, 

1.11.1 SFM-Offlce of the State Fire Marshal, Specific scope 
of application of the agency responsible for enforcement, the 
enforcement agency and the specific authority to adopt and 
enforce such provisions of this code, unless otherwise stated. 

Application: 

Institutional, Educational^ or any Similar Occupancy, Any 

building or structure used or intended for use as an asylum, jail, 
mental hospital, hospital, sanitarium, home for the aged, chil- 
dren s nursery, children 's home, school, or any similar occu- 
pancy of any capacity. 

Authority Cited -Health and Safety Code Section 13143. 

Reference - Health and Safety Code Section 13143. 

Assembly or Similar Place of Assemblage, Any theater, dance- \ 
hall, skating rink, auditorium, assembly hall, meeting hall, 
nightclub, fair building, or similar place of assemblage where 
50 or more persons may gather together in a building, room 
or structure for the purpose of amusement, entertainment, 
instruction, deliberation, worship, drinking or dining, await- 
ing transportation, or education. 

Authority Cited -Health and Safety Code Section 13143. 

Reference - Health and Safety Code Section 13143. 

Small Family Day-Care Homes, 

Authority Cited -Health and Safety Code Sections 1597.45, 
1597.54, 13143, and 17921. 

Reference - Health and Safety Code Section 13143. 

Large Family Day-Care Homes, 

Authority Cited -Health and Safety Code Sections 1597.46, 
1597.54, and 17921. 

Reference - Health and Safety Code Section 13143. 

Residential Facilities and Residential Facilities for the Elderly, 
Authority Cited - Health and Safety Code Section 13133. 
Reference - Health and Safety Code Section 13143. 

Any State Institution or Other State-Owned or State-Occu- 
pied Building, 

Authority Cited - Health and Safety Code Section 13108. 

Reference - Health and Safety Code Section 13143. 

High-Rise Structures, 

Authority Cited -Health and Safety Code Section 13211. 

Reference - Health and Safety Code Section 13143. 

Motion Picture Production Studios, 

Authority Cited -Health and Safety Code Section 13143.1. 

Reference - Health and Safety Code Section 13143. 



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Organized Camps. 

Authority Cited -Health and Safety Code Section 18897.3. 

Reference - Health and Safety Code Section 1 31 43. 

Residential, 

All hotels, motels, lodging houses, apartment houses and 
dwellings, including congregate residences and buildings and 
structures accessory thereto. Multiple-story structures exist- 
ing on January 1, 1975, let for human habitation, including 
and limited to, hotels, motels, apartment houses, less than 75 
feet (22 860 mm) above the lowest floor level having building 
access, wherein rooms used for sleeping are let above the 
groundfloor. 

Authority Cited ~- Health and Safety Code Sections 13143.2 
and 17921. 
Reference - Health and Safety Code Section 13143. 

Residential Care Facilities, 

Certified family-care homes, out-of-home placement facili- 
ties, halfway houses, drug and/or alcohol rehabilitation facil- 
ities, and any building or structure used or intended for use 
as a home or institution for the housing of any person of any 
age when such person is referred to or placed within such 
home or institution for protective social care and supervision 
services by any governmental agency. 
Authority Cited -Health and Safety Code Section 13143.6. 
II Reference - Health and Safety Code Section 13143. 

Tents, Awnings, or Other Fabric Enclosures Used in Con- 
nection with Any Occupancy. 

Authority Cited -Health and Safety Code Section 13116. 
Reference - Health and Safety Code Section 13143. 

> 

Fire Alarm Devices, Equipment, and Systems in Connec- 
tion with Any Occupancy. 

Authority Cited -Health and Safety Code Section 13114. 
W Reference - Health and Safety Code Section 13143. 

Hazardous Materials. 

Authority Cited -Health and Safety Code Section 13143.9. 
II Reference - Health and Safety Code Section 13143. 

Flammable and Combustible Liquids. 
Authority Cited - Health and Safety Code Section 13143.6. 
II Reference - Health and Safety Code Section 13143. 

Public School Automatic Fire Detection, Alarm, and Sprin- 
kler Systems. 

Authority Cited -Health and Safety Code Section 13143 and 
California Education Code Article 7.5, Sections 17074.50, 
17074.52, and 17074.54. 

References - Government Code Section 11152.5, Health and 
Safety Code Section 13143 and California Education Code 



Chapter 12.5, Leroy E Greene School Facilities Act of 1998, 
Article 1. 



Wildland-Urban Interface Fire Area. 

Authority Cited - Health and Safety Code Sections 13143, 
13108.5(a), and 18949.2(b) and (c); and Government Code 
Section 51189. 

References - Health and Safety Code Sections 13143, Gov- 
ernment Code Sections 511 76, 511 77, 511 78, and 511 79; and 
Public Resources Code Sections 4201 through 4204. 

1.11.2 Duties and Powers of the Enforcing Agency. 

1.11.2.1 Enforcement. 

1.1 1.2. LI The responsibility for enforcement of 
building standards adopted by the State Fire Mar- 
shal and published in the California Building Stan- 
dards Code relating to fire and panic safety and other 
regulations of the State Fire Marshal shall except as 
provided in Section 1.11.2.1.2 be as follows: 

1. The city, county, or city and county, with juris- 
diction in the area affected by the standard or 
regulation shall delegate the enforcement of the 
building standards relating to fire and panic 
safety and other regulations of the State Fire 
Marshal as they relate to Group R-3 occupan- 
cies, as described in Section 310.1 of Part 2 of\ 
the California Building Standards Code, to 
either of the following : 

1.1. The chief of the fire authority of the city, 
county, or city, and county or an authorized rep- 
resentative. 

1.2. The chief building official of the city, county, 
or city and county, or an authorized representa- 
tive. 

2. The chief of any city or county fire department 
or of any fire protection district, and authorized 
representatives, shall enforce within the juris- 
diction the building standards and other regu- 
lations of the State Fire Marshal, except those 
described in Item 1 or 4. 

3. The State Fire Marshal shall have authority to 
enforce the building standards and other regu- 
lations of the State Fire Marshal in areas out- 
side of corporate cities and districts providing 
fire protection services. 

4. The State Fire Marshal shall have authority to 
enforce the building standards and other regu- 
lations of the State Fire Marshal in corporate 
cities and districts providing fire-protection 
services on request of the chief fire official or 
the governing body. 

5. Any fee charged pursuant to the enforcement 
authority of this section shall not exceed the 
estimated reasonable cost of providing the serv- 
ice for which the fee is charged pursuant to Sec- 
tion 66014 of the Government Code. 



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L1L2,1.2 Pursuant to Health and Safety Code Sec- 
tion 13108, and except as otherwise provided in this 
section, building standards adopted by the State Fire 
Marshal published in the California Building Stan- 
dards Code relating to fire and panic safety shall be 
enforced by the State Fire Marshal in all state- 
owned buildings, state-occupied buildings, and state 
institutions throughout the state. Upon the written 
request of the chief fire official of any city, county, or 
fire-protection district, the State Fire Marshal may 
authorize such chief fire official and his or her 
authorized representatives, in their geographical 
area of responsibility, to make fire-prevention 
inspections of state-owned or state-occupied build- 
ings, other than state institutions, for the purpose of 
enforcing the regulations relating to fire and panic 
safety adopted by the State Fire Marshal pursuant to 
this section and building standards relating to fire 
and panic safety published in the California Build- 
ing Standards Code, Authorization from the State 
Fire Marshal shall be limited to those fire depart- 
ments or fire districts which maintain afire-preven- 
tion bureau staffed by paid personnel. 

Pursuant to Health and Safety Code Section 
13108, any requirement or order made by any chief 
fire official who is authorized by the State Fire Mar- 
shal to make fire-prevention inspections of state- 
owned or state-occupied buildings, other than state 
institutions, may be appealed to the State Fire Mar- 
shal. The State Fire Marshal shall, upon receiving 
an appeal and subject to the provisions of Chapter 
5 (commencing with Section 18945) of Part 2.5 of 
Division 13 of the Health and Safety Code, deter- 
mine if the requirement or order made is reasonably 
consistent with the fire and panic safety regulations 
adopted by the State Fire Marshal and building 
standards relating to fire and panic safety published 
in the California Building Code. 

Any person may request a code interpretation 
from the State Fire Marshal relative to the intent of 
any regulation or provision adopted by the State 
Fire Marshal When the request relates to a specific 
project, occupancy or building, the State Fire Mar- 
shal shall review the issue with the appropriate local 
enforcing agency prior to rendering such code inter- 
pretation, 

L1L2,L3 Pursuant to Health and Safety Code Sec- 
tion 13112, any person who violates any order, rule 
or regulation of the State Fire Marshal is guilty of a 
misdemeanor punishable by a fine of not less than 
$100.00 or more than $500.00, or by imprisonment 
for not less than six months, or by both. A person is 
guilty of a separate offense each day during which 
he or she commits, continues, or permits a violation 
of any provision of or any order, rule or regulation 
of, the State Fire Marshal as contained in this code. 

Any inspection authority who, in the exercise of 
his or her authority as a deputy State Fire Marshal, 
causes any legal complaints to be filed or any arrest 



to be made shall notify the State Fire Marshal imme- 
diately following such action. 

1.11.2.2 Right of Entry. The fire chief of any city, county, 
or fire-protection district, or such person s authorized 
representative, may enter any state institution or any 
other state-owned or state-occupied building for the pur- 
pose of preparing a fire-suppression preplanning pro- 
gram or for the purpose of investigating any fire in a 
state-occupied building. 

The State Fire Marshal, his or her deputies or 
salaried assistants, the chief of any city or county fire 
department or fire-protection district and his or her 
authorized representatives may enter any building or 
premises not used for dwelling purposes at any reason- 
able hour for the purpose of enforcing this chapter. The 
owner, lessee, manager, or operator of any such build- 
ing or premises shall permit the State Fire Marshal, his 
or her deputies or salaried assistants and the chief of any 
city or county fire department or fire-protection district 
and his or her authorized representatives to enter and 
inspect them at the time and for the purpose stated in this 
section. 

1.11.2.3 More Restrictive Fire and Panic Safety Build- 
ing Standards, 

1.11.2.3.1 Any fire-protection district organized pur- 
suant to Health and Safety Code Part 2. 7 (com- 
mencing with Section 13800) of Division 12 may 
adopt building standards relating to fire and panic 
safety that are more stringent than those building 
standards adopted by the State Fire Marshal and 
contained in the California Building Standards 
Code. For these purposes, the district board shall 
be deemed a legislative body and the district shall be 
deemed a local agency. Any changes or modifica- 
tions that are more stringent than the requirements 
published in the California Building Standards Code 
relating to fire and panic safety shall be subject to 
Section LI. 8.1. 

1.11.2.3.2 Any fire protection district that proposes 
to adopt an ordinance pursuant to this section shall, 
not less than 30 days prior to noticing a proposed 
ordinance for public hearing, provide a copy of that 
ordinance, together with the adopted findings made 
pursuant to Section 1.11.2.3,1, to the city, county, or 
city and county where the ordinance will apply. The 
city, county, or city and county may provide the dis- 
trict with written comments, which shall become 
part of the fire-protection district s public hearing 
record. 

1.11.2.3.3 The fire-protection district shall transmit the 
adopted ordinance to the city, county, or city and 
county where the ordinance will apply. The legislative 
body of the city, county, or city and county may ratify, 
modify or deny an adopted ordinance and transmit its 
determination to the district within 15 days of the 
determination. Any modification or denial of an 
adopted ordinance shall include a written statement 



2010 CALIFORNIA PLUMBING CODE 



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ADMINISTRATION DIVISION I 



describing the reasons for any modifications or denial 
No ordinance adopted by the district shall be effective 
until ratification by the city, county, or city and county 
where the ordinance will apply. Upon ratification of 
an adopted ordinance, the city, county, or city and 
county shall file a copy of the findings of the district, 
and any findings of the city, county, or city and county 
together with the adopted ordinance expressly marked 
and identified to which each finding refers, in accor- 
dance with Section 1.1.8.1 (3). 

1.11.2.4 Request for Alternate Means of Protection, 

Requests for approval to use an alternative material, 
assembly or materials, equipment, method of construc- 
tion, method of installation of equipment, or means of 
protection shall be made in writing to the enforcing 
agency by the owner or the owner s authorized repre- 
sentative and shall be accompanied by a full statement of 
the conditions. Sufficient evidence or proof shall be sub- 
mitted to substantiate any claim that may be made 
regarding its conformance. The enforcing agency may 
require tests and the submission of a test report from an 
approved testing organization as set forth in Title 19, 
California Code of Regulation, to substantiate the equiv- 
alency of the proposed alternative means of protection. 

I When a request for alternate means of protection 

involves hazardous materials, the Authority Having 
Jurisdiction may consider implementation of the findings 
and recommendations identified in a Risk Management 
Plan (RMP) developed in accordance with Title 19, Divi- 
II sion 2, Chapter 4.5, Article 3. 

Approval of a request for use of an alternative mate- 
rial, assembly of materials, equipment, method of con- 
struction, method of installation of equipment, or means 
of protection made pursuant to these provisions shall be 
limited to the particular case covered by request and 
shall not be construed as establishing any precedent for 
any future request. 

1.11.2.5 Appeals, When a request for an alternate means 
of protection has been denied by the enforcing agency, 
the applicant may file a written appeal to the State Fire 
Marshal for consideration of the applicant s proposal. In 
considering such appeal, the State Fire Marshal may 
seek the advice of the State Board of Fire Services. The 
State Fire Marshal shall, after considering all of the facts 
presented, including any recommendations of the State 
Board of Fire Services, determine if the proposal is for 
the purposes intended, at least equivalent to that speci- 
fied in these regulations in quality, strength, effective- 
ness, fire resistance, durability, and safety, and shall 
transmit such findings and any recommendations to the 
applicant and to the enforcing agency. 

1,11,3 Construction Documents, In addition to the provisions 
of this Section, see Title 24, Part 2, California Building Code, 
Appendix Chapter 1, Section 106 for additional requirements. 

1,11,3,1 Public Schools, Plans and specifications for the 

construction, alteration or addition to any building 

owned, leased or rented by any public school district 

II shall be submitted to the Division of the State Architect. 



1.11.3.2 Movable Walls and Partitions, Plans or dia- 
grams shall be submitted to the enforcing agency for 
approval before the installation of, or rearrangement of 
any movable wall or partition in any occupancy. 
Approval shall be granted only if there is no increase in 
the fire hazard. 

1.11.3.3 New Construction High-Rise Buildings, 

1. Complete plans or specifications, or both, shall be 
prepared covering all work required to comply with 
new construction high-rise buildings. Such plans 
and specifications shall be submitted to the enforc- 
ing agency having jurisdiction. 

2, A II plans and specifications shall be prepared under 
the responsible charge of an architect or a civil or 
structural engineer authorized by law to develop 
construction plans and specifications, or by both 
such architect and engineer. Plans and specifica- 
tions shall be prepared by an engineer duly quali- 
fied in that branch of engineering necessary to 
perform such services. Administration of the work 
of construction shall be under the charge of the 
responsible architect or engineer except that where 
plans and specifications involve alterations or 
repairs, such work of construction may be adminis- 
tered by an engineer duly qualified to perform such 
services and holding a valid certificate under Chap- 
ter 7 (commencing with Section 65700) of Division 
3 of the Business and Professions Code for per- 
formance of services in that branch of engineering 
in which said plans, specifications and estimates and 
work of construction are applicable. 

This section shall not be construed as prevent- 
ing the design of fire-extinguishing systems by per- 
sons holding a C-16 license issued pursuant to 
Division 3, Chapter 9, Business and Professions 
Code. In such instances, however, the responsibility 
charge of this section shall prevail. 

1.11.3.4 Existing High-Rise Buildings, 

1. Complete plans or specifications, or both, shall be 
prepared covering all work required by Section 3412 
for existing high-rise buildings. Such plans or spec- 
ifications shall be submitted to the enforcing agency 
having jurisdiction. 

2. When new construction is required to conform with 
the provisions of these regulations, complete plans 
or specifications, or both, shall be prepared in 
accordance with the provisions of this subsection. 
As used in this section ''new construction " is not 
intended to include repairs, replacements or minor 
alterations which do not disrupt or appreciably add 
to or affect the structural aspects of the building. 

1.11.3.5 Retention of Plans, Refer to Building Standards 
Law, Health and Safety Code Sections 19850 and 19851, 
for permanent retention of plans. 

1,11,4 Fees 

1,11,4,1 Other Fees, Pursuant to Health and Safety Code 
Section 13146.2, a city, county, or district which inspects 
a hotel, motel, lodging house, or apartment house may 



16 



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charge and collect a fee for the inspection from the owner 
of the structure in an amount, as determined by the city, 
county, or district, sufficient to pay its costs of that 
inspection. 

1.11.4.2 Large Family Day Care, Pursuant to Health 
and Safety Code Section 1597.46, Large Family Day- 
Care Homes, the local government shall process any 
required permit as economically as possible, and fees 
charged for review shall not exceed the costs of the 
review and permit process. 

1.11.4.3 High-Rise, Pursuant to Health and Safety Code 
Section 13217, High-Rise Structure Inspection: Fees and 
Costs, a local agency which inspects a high-rise structure 
pursuant to Health and Safety Code Section 13217 may 
charge and collect a fee for the inspection from the owner 
of the high-rise structure in an amount, as determined by 
the local agency, sufficient to pay its costs of that inspec- 
tion. 

1.11.4.4 Fire Clearance Preinspection, Pursuant to 
Health and Safety Code Section 13235, Fire Clearance 
Preinspection, Fee; upon receipt of a request from a 
prospective licensee of a community care facility, as 
defined in Section 1502, of a residential-care facility for 
the elderly, as defined in Section 1569.2, or of a child 
day-care facility, as defined in Section 1596.750, the 
local fire enforcing agency, as defined in Section 13244, 
or State Fire Marshal, whichever has primary jurisdic- 
tion, shall conduct a preinspection of the facility prior to 
the final fire clearance approval. At the time of the prein- 
spection, the primary fire enforcing agency shall price 
consultation and interpretation of the fire safety regula- 
tions and shall notify the prospective licensee of the facil- 
ity in writing of the specific fire safety regulations which 
shall be enforced in order to obtain fire clearance 
approval. A fee of not more than $50.00 may be charged 
for the preinspection of a facility with a capacity to serve 
25 or fewer persons. A fee of not more than $100.00 may 
be charged for a preinspection of a facility with a capac- 
ity to serve 26 or more persons. 

1.11.4.5 Care Facilities, The primary fire enforcing 
agency shall complete the final fire clearance inspection 
for a community care facility, residential-care facility for 
the elderly, or child day-care facility within 30 days of 
receipt of the request for the final inspection, or as of the 
date the prospective facility requests the final prelicen- 
sure inspection by the State Department of Social Serv- 
ices, whichever is later 

Pursuant to Health and Safety Code Section 13235, 
a preinspection fee of not more than $50 may be charged 
for a facility with a capacity to serve 25 or less clients. 
A fee of not more than $100 may be charged for a prein- 
spection of a facility with a capacity to serve 26 or more 
clients. 

Pursuant to Health and Safety Code Section 13131.5, 
a reasonable final inspection fee, not to exceed the actual 
cost of inspection services necessary to complete a final 
inspection may be charged for occupancies classified as 
residential care facilities for the elderly (RCFE). 



Pursuant to Health and Safety Code Section 1569.84, 
neither the State Fire Marshal nor any local public entity 
shall charge any fee for enforcing fire inspection regula- 
tions pursuant to state law or regulation or local ordi- 
nance, with respect to residential-care facilities for the 
elderly (RCFE) which service six or fewer persons. 

1,11.4. 6 Requests of the Office of the State Fire Marshal 

Whenever a local Authority Having Jurisdiction requests 
that the State Fire Marshal perform plan review and/or 
inspection services related to a building permit, the 
applicable fees for such shall be payable to the Office of 
the State Fire Marshal. 

1.11.5 Lnspections, Work performed subject to the provisions 
of this code shall comply with the inspection requirements of 
Title 24, Part 2, California Building Standards Code, Sections 
109.1, 109.3, 109.3.4, 109.3.5, 109.3.6, 109.3.8, 109.3.9, 
109.3.10, 109.5, and 109.6 as adopted by the Office of the 
State Fire Marshal. 

1,11,5.1 Existing Group I-l or R occupancies. Licensed 
24-hour care in a Group I-l or R occupancy in existence 
and originally classified under previously adopted state 
codes shall be reinspected under the appropriate previous 
code, provided there is no change in the use or character 
which would place the facility in a different occupancy 
group. 

1.11.6 Certificate of Occupancy, A Certificate of Occupancy 
shall be issued as specified in Title 24, Part 2, California Build- 
ing Code, Section 111. 

Exception: Group R-3 and Group U Occupancies. 

1.11. 7 Temporary Structures and Uses. See Title 24, Part 2, 
California Building Code, Section 107. 

1.11.8 Service Utilities. See Title 24, Part 2, California Build- 
ing Code, Section 112. 

1.11.9 Stop Work Order, See Title 24, Part 2, California Build- 
ing Code, Section 115. 

1.11.10 Unsafe Buildings, Structures, and Equipment. See 

Title 24, Part 2, California Building Code, Section 116. 

1,12,0 Reserved for the State Librarian. 

1,13,0 Department of Water Resources (DWR), 

DWR-Department of Water Resources. 

Application - Construction, installation, or alteration of 
graywater systems for subsurface irrigation and other safe 
uses. 

Enforcing Agency - Local building department or the 
Department of Water Resources. 

Authority Cited - Water Code Sections 14875 through 
14877.3. 

References - Water Code Sections 14875 through 
14877.3. 



1.14,0 Reserved for the State Lands Commission. 



2010 CALIFORNIA PLUMBING CODE 



17 



18 2010 CALIFORNIA PLUMBING CODE 



DIVISION II 
ADMINISTRATION 



101.0 Title, Scope, and General. 

101.1 Title. This document shall be known as the "Uniform 
Plumbing Code," may be cited as such, and will be referred 
to herein as "this code." 

101.2 Purpose. This code is an ordinance providing mini- 
mum requirements and standards for the protection of the 
public health, safety, and welfare. 

101.3 Flans Required. The Authority Having Jurisdiction 
shall be permitted to require the submission of plans, speci- 
fications, drawings, and such other information as required 
by the Authority Having Jurisdiction, prior to the com- 
mencement of, and at any time during the progress of, any 
work regulated by this code. 

The issuance of a permit upon plans and specifications 
shall not prevent the Authority Having Jurisdiction from 
thereafter requiring the correction of errors in said plans and 
specifications or from preventing construction operations 
being carried on thereunder when in violation of this code or 
of any other pertinent ordinance or from revoking any cer- 
tificate of approval when issued in error. 

101.4 Scope. 

101.4.1 The provisions of this code shall apply to the erec- 
tion, installation, alteration, repair, relocation, replacement, 
addition to, use, or maintenance of plumbing systems 
within this jurisdiction. 

101.4.1.1 Repairs and Alterations. 

101.4.1.1.1 In existing buildings or premises in 
which plumbing installations are to be altered, 
repaired, or renovated, deviations from the pro- 
visions of this code are permitted, provided such 
deviations are found to be necessary and are first 
approved by the Authority Having Jurisdiction. 

101.4.1.1.2 Existing building sewers and build- 
ing drains shall be permitted to be used in con- 
nection with new buildings or new plumbing and 
drainage work only when they are found on 
examination and test to conform in all respects to 
the requirements governing new work, and the 
proper Authority Having Jurisdiction shall notify 
the owner to make any changes necessary to con- 
form to this code. No building, or part thereof, 
shall be erected or placed over any part of a 
drainage system that is constructed of materials 
other than those approved elsewhere in this code 
for use under or within a building. 

101.4.1.1.3 Openings into a drainage or vent sys- 
tem, excepting those openings to which plumb- 
ing fixtures are properly connected or which 
constitute vent terminals, shall be permanently 



plugged or capped in an approved manner, using 
the appropriate materials required by this code. 

101.4.1.2 Maintenance. The plumbing and drainage 
system of any premises under the Authority Having 
Jurisdiction shall be maintained in a sanitary and 
safe operating condition by the owner or the owner's 
agent. 

101.4.1.3 Existing Construction. No provision of this 
code shall be deemed to require a change in any por- 
tion of a plumbing or drainage system or any other 
work regulated by this code in or on an existing build- 
ing or lot when such work was installed and is main- 
tained in accordance with law in effect prior to the 
effective date of this code, except when any such 
plumbing or drainage system or oilier work regulated 
by this code is determined by the Authority Having 
Jurisdiction to be in fact dangerous, unsafe, insanitary, 
or a nuisance and a menace to life, health, or property. 

101.4.1.4 Conflicts Between Codes. When the 
requirements within the jurisdiction of this plumbing 
code conflict with the requirements of the mechan- 
ical code, this code shall prevail. 

101.4.2 Additions, alterations, repairs, and replacement of 
plumbing systems shall comply with the provisions for new 
systems except as otherwise provided in Section 101.5. 

101.4.3 The provisions in the appendices are intended to 
supplement the requirements of this code and shall not 
be considered part of this code unless formally adopted 
as such. 

101.5 Application to Existing Plumbing System. 

101.5.1 Additions, Alterations, or Repairs. Additions, 
alterations, or repairs shall be permitted to be made to any 
plumbing system without requiring the existing pliunbing 
system to comply with all the requirements of this code, 
provided the addition, alteration, or repair conforms to that 
required for a new plumbing system. Additions, alterations, 
or repairs shall not cause an existing system to become 
unsafe, insanitary, or overloaded. 

101.5.2 Health and Safety. Whenever comphance with 
the provisions of this code fails to eliminate or alleviate a 
nuisance, or any other dangerous or insanitary condition 
that may involve health or safety hazards, the owner or the 
owner's agent shall install such additional plumbing and 
drainage facilities or shall make such repairs or alterations 
as may be ordered by the Authority Having Jurisdiction. 

101.5.3 Existing Installation. Plumbing systems lawfully 
in existence at the time of the adoption of this code may 
have their use, maintenance, or repair continued if the use, 
maintenance, or repair is in accordance with the original 
design and location and no hazard to life, health, or prop- 
erty has been created by such plumbing system. 



2010 CALIFORNIA PLUMBING CODE 



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ADMINISTRATION DIVISION II 



101.5.4 Changes in Building Occupancy. Plumbing 
systems that are apart of any building or structure under- 
going a change in use or occupancy, as defined in the 
Building Code, shall comply to the requirements of this 
code that may be applicable to the new use or occupancy. 

101.5.5 Maintenance. Plumbing systems, materials, and 
appurtenances, both existing and new, and parts thereof 
shall be maintained in proper operating condition. 
Devices or safe-guards required by this code shall be 
maintained in conformance with the code edition under 
which installed. The owner or the owner's designated 
agent shall be responsible for maintenance of plumbing 
systems. To determine compliance with this subsection, 
the Authority Having Jurisdiction shall be permitted to 
cause any plumbing system to be reinspected. 

101.5.6 Moved Buildings. Plumbing systems that are 
part of buildings or structures moved into this jurisdiction 
shall comply with the provisions of this code for new 
installations, except as provided for in Section 103.5.5.2. 

102.0 Organization and Enforcement. 

102.1 Authority Having Jurisdiction. 

The Authority Having Jurisdiction shall be the Authority duly 
appointed to enforce this code. 

102.2 Duties and Powers of tiie Autliority Having Juris- 
diction. 

102.2.1 The Authority Having Jurisdiction shall be per- 
mitted to appoint such assistants, deputies, inspectors, or 
other employees as necessary to carry out the functions 
of the department and this code. 

102.2.2 Right of Entry. Whenever it is necessary to make 
an inspection to enforce the provisions of this code, or 
whenever the Authority Having Jurisdiction has reason- 
able cause to believe that there exists in any building or 
upon any premises any condition or violation of this code 
that makes the building or premises unsafe, insanitary, 
dangerous, or hazardous, the Authority Having Jurisdic- 
tion shall be permitted to enter the building or premises at 
all reasonable times to inspect or to perform the duties 
imposed upon the Authority Having Jurisdiction by this 
code, provided that if such building or premises is occu- 
pied, the Authority Having Jurisdiction shall present cre- 
dentials to the occupant and request entry. If such building 
or premises is unoccupied, the Authority Having Juris- 
diction shall first make a reasonable effort to locate the 
owner or other person having charge or control of the 
building or premises and request entry. If entry is refused, 
the Authority Having Jurisdiction has recourse to every 
remedy provided by law to secure entry. 

When the Authority Havmg Jurisdiction shall have 
first obtained a proper inspection warrant or other rem- 
edy provided by law to secure entry, no owner, occupant, 
or person having charge, care, or control of any building 
or premises shall fail or neglect, after proper request is 



made as herein provided, to promptly permit entry herein 
by the Authority Having Jurisdiction for the purpose of 
inspection and examination pursuant to this code. 

102.2.3 Stop Orders. Whenever any work is being done 
contrary to the provisions of this code, the Authority 
Having Jurisdiction shall be permitted to order the work 
stopped by notice in writing served on any persons 
engaged in the doing or causing such work to be done, 
and any such persons shall forthwith stop work until 
authorized by the Authority Having Jurisdiction to pro- 
ceed with the work. 

102.2.4 Authority to Disconnect Utilities in Emergen- 
cies. The Authority Having Jurisdiction shall have the 
authority to disconnect a plumbing system to a building, 
structure, or equipment regulated by this code in case of 
emergency where necessary to eliminate an immediate 
hazard to life or property. 

102.2.5 Authority to Condemn. Whenever the Author- 
ity Having Jurisdiction ascertains that any plumbing sys- 
tem or portion thereof, regulated by this code, has become 
hazardous to life, health, or property, or has become 
insanitary, the Authority Having Jurisdiction shall order in 
writing that such plumbing either be removed or placed in 
a safe or sanitary condition, as appropriate. The order 
shall fix a reasonable time limit for compliance. No per- 
son shall use or maintain defective plumbing after receiv- 
ing such notice. 

When such plumbing system is to be disconnected, 
written notice shall be given. In cases of immediate dan- 
ger to life or property, such disconnection shall be per- 
mitted to be made immediately without such notice. 

102.2.6 Liability. The Authority Having Jurisdiction 
charged with the enforcement of this code, acting in good 
faith and without malice in the discharge of the Author- 
ity Having Jurisdiction's duties, shall not thereby be ren- 
dered personally liable for any damage that may accrue 
to persons or property as a resuh of any act or by reason 
of any act or omission in the discharge of duties. A suit 
brought against the Authority Having Jurisdiction or 
employee because of such act or omission performed in 
the enforcement of any provision of this code shall be 
defended by legal counsel provided by this jurisdiction 
until final termination of such proceedings. 

102.3 Violations and Penalties. 

102.3.1 Violations. It shall be unlawful for any person, 
firm, or corporation to erect, construct, enlarge, alter, 
repair, move, improve, remove, convert, demolish, equip, 
use, or maintain any plumbing or permit the same to be 
done in violation of this code. 

102.3.2 Penalties. Any person, firm, or corporation vio- 
lating any provision of this code shall be deemed guilty 
of a misdemeanor, and upon conviction thereof, shall be 
punishable by a fine and/or imprisonment set forth by the 
governing laws of the jurisdiction. Each separate day or 



20 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION II 



any portion thereof, during which any violation of this 
code occurs or continues, shall be deemed to constitute 
a separate offense. 

103.0 Permits and Inspections. 

103.1 Permits. 

103.1.1 Permits Required. It shall be unlawful for any 
person, firm, or corporation to make any installation, 
alteration, repair, replacement, or remodel any plumbing 
system regulated by this code except as permitted in Sec- 
tion 1 03 . 1 .2, or to cause the same to be done without first 
obtaining a separate plumbing permit for each separate 
building or structure. 

103.1.2 Exempt Work. A permit shall not be required 
for the following: 

103.1.2.1 The stopping of leaks in drains, soil, waste, 
or vent pipe, provided, however, that should any trap, 
drainpipe, soil, waste, or vent pipe become defective 
and it becomes necessary to remove and replace the 
same with new material, the same shall be consid- 
ered as new work and a permit shall be procured and 
inspection made as provided in this code. 

103.1.2.2 The clearing of stoppages, including the 
removal and reinstallation of water closets, or the 
repairing of leaks in pipes, valves, or fixtures, pro- 
vided such repairs do not involve or require the 
replacement or rearrangement of valves, pipes, or fix- 
tures. 

Exemption from the permit requirements of this 
code shall not be deemed to grant authorization for 
any work to be done in violation of the provisions of 
the code or any other laws or ordinances of this juris- 
diction. 

103.1.3 Licensing. Provision for licensing shall be deter- 
mined by the Authority Having Jurisdiction. 

103.2 Application for Permit. 

103.2.1 Application. To obtain a permit, the applicant 
shall first file an application therefore in writing on a 
form furnished by the Authority Having Jurisdiction for 
that purpose. Every such application shall: 

103.2.1.1 Identify and describe the work to be cov- 
ered by the permit for which application is made. 

103.2.1.2 Describe the land upon which the pro- 
posed work is to be done by legal description, street 
address, or similar description that will readily iden- 
tify and definitely locate the proposed building or 
work. 

103.2.1.3 Indicate the use or occupancy for which 
the proposed work is intended. 

103.2.1.4 Be accompanied by plans, diagrams, 
computations, and other data as required in Section 
103.2.2. 

103.2.1.5 Be signed by the permittee or the permit- 
tee's authorized agent, who may be required to sub- 
mit evidence to indicate such authority. 



103.2.1.6 Give such other data and information as may 
be requked by the Authority Having Jurisdiction. 

103.2.2 Plans and Specifications. Plans, engineering 
calculations, diagrams, and other data shall be submitted 
in one (1) or more sets with each application for a permit. 
The Authority Having Jurisdiction shall be permitted to 
require plans, computations, and specifications to be pre- 
pared by, and the plumbing designed by, an engineer 
and/or architect licensed by the state to practice as such. 

Exception: The Authority Having Jurisdiction shall be 
permitted to waive the submission of plans, calculations, 
or other data if the Authority Having Jurisdiction finds 
that the nature of the work applied for is such that 
reviewing of plans is not necessary to obtain compliance 
within the code. 

103.2.3 Information on Plans and Specifications. Plans 
and specifications shall be drawn to scale upon substan- 
tial paper or cloth and shall be of sufficient clarity to indi- 
cate the location, nature, and extent of the work proposed 
and show in detail that it will conform to the provisions 
of this code and relevant laws, ordinances, rules, and reg- 
ulations. 

103.3 Permit Issuance. 

103.3.1 Issuance. The application, plans, and specifica- 
tions and other data filed by an applicant for a permit 
shall be reviewed by the Authority Having Jurisdiction. 
Such plans shall be permitted to be reviewed by other 
departments of this jurisdiction to verify compliance with 
applicable laws under their jurisdiction. If the Authority 
Having Jurisdiction finds that the work described in an 
application for permit and the plans, specifications, and 
other data filed therewith conform to the requirements 
of the code and other pertinent laws and ordinances, and 
that the fees specified in Section 103.4 have been paid, 
the Authority Having Jurisdiction shall issue a permit 
therefore to the applicant. 

When the Authority Having Jurisdiction issues the 
permit where plans are required, the Authority Having 
Jurisdiction shall endorse in writing or stamp the plans 
and specifications "APPROVED." Such approved plans 
and specifications shall not be changed, modified, or 
altered without authorization from the Authority Having 
Jurisdiction, and all work shall be done in accordance 
with approved plans. 

The Authority Having Jurisdiction shall be permitted 
to issue a permit for the construction of a part of a plumb- 
ing system before the entire plans and specifications for 
the whole system have been submitted or approved, pro- 
vided adequate information and detailed statements have 
been filed complying with all pertinent requirements of 
this code. The holder of such permit shall be permitted to 
proceed at the holder's risk without assurance that the 
permit for the entire building, structure, or plumbing sys- 
tem will be granted. 

103.3.2 Retention of Plans. One (I) set of approved 
plans, specifications, and computations shall be retained 



2010 CALIFORNIA PLUMBING CODE 



21 



ADMINISTRATION DIVISION II 



by the Authority Having Jurisdiction until final approval 
of the work covered therein. One (1) set of approved 
plans and specifications shall be returned to the appli- 
cant, and said set shall be kept on the site of the building 
or work at times during which the work authorized 
thereby is in progress. 

103.3.3 Validity of Permit. The issuance of a permit or 
approval of plans and specifications shall not be con- 
strued to be a permit for, or an approval of, any violation 
of any of the provisions of this code or of any other ordi- 
nance of the jurisdiction. No permit presuming to give 
authority to violate or cancel the provisions of this code 
shall be valid. 

The issuance of a permit based upon plans, specifi- 
cations, or other data shall not prevent the Authority 
Having Jurisdiction from thereafter requiring the correc- 
tion of errors in said plans, specifications, and other data 
or from preventing building operations being carried on 
thereunder when in violation of this code or of other ordi- 
nances of this jurisdiction. 

103.3.4 Expiration. Every permit issued by the Author- 
ity Having Jurisdiction under the provisions of this code 
shall expire by limitation and become null and void if the 
work authorized by such permit is not commenced within 
one-hundred and eighty (180) days from the date of such 
permit, or if the work authorized by such permit is sus- 
pended or abandoned at any time after the work is com- 
menced for a period of one-hundred and eighty (180) 
days. Before such work can be recommenced, a new per- 
mit shall first be obtained to do so, and the fee therefore 
shall be one-half (Vi) the amount required for a new per- 
mit for such work, provided no changes have been made 
or will be made in the original plans and specifications 
for such work, and provided further that such suspen- 
sions or abandonment has not exceeded one (1) year. 

Any permittee holding an unexpired permit shall be 
permitted to apply for an extension of the time within 
which work shall be permitted to commence under that 
permit when the permittee is unable to commence work 
within the time required by this section for good and sat- 
isfactory reasons. The Authority Having Jurisdiction 
shall be permitted to extend the time for action by the 
permittee for a period not exceeding one-hundred and 
eighty (180) days upon written request by the permittee 
showing that circumstances beyond the control of the 
permittee have prevented action from being taken. No 
permit shall be extended more than once. In order to 
renew action on a permit after expiration, the permittee 
shall pay a new fiiU permit fee. 

103.3.5 Suspension or Revocation. The Authority Hav- 
ing Jurisdiction shall be permitted to, in writing, suspend 
or revoke a permit issued under the provisions of this 
code whenever the permit is issued in error or on the basis 
of incorrect information suppHed or in violation of other 
ordinance or regulation of the jurisdiction. 



103.4 Fees. 



103.4.1 Permit Fees. Fees shall be assessed in accor- 
dance with the provisions of this section and as set forth 
in the fee schedule Table 1-1. The fees are to be deter- 
mined and adopted by this jurisdiction. 

103.4.2 Plan Review Fees. When a plan or other data is 
required to be submitted by Section 103.2.2, a plan review 
fee shall be paid at the time of submitting plans and spec- 
ifications for review. 

The plan review fees for plumbing work shall be 
determined and adopted by this jurisdiction. 

The plan review fees specified in this subsection are 
separate fees from the permit fees specified in this sec- 
tion and are in addition to the permit fees. 

When plans are incomplete or changed so as to 
require additional review, a fee shall be charged at the 
rate shown in Table 1-1. 

103.4.3 Expiration of Plan Review. Applications for 
which no permit is issued within one-hundred and eighty 
(1 80) days following the date of application shall expu-e by 
limitation, plans and other data submitted for review may 
thereafter be returned to the applicant or destroyed by the 
Authority Having Jurisdiction. The Authority Having 
Jurisdiction shall be permitted to exceed the time for action 
by the applicant for a period not to exceed one-hundred 
and eighty (1 80) days upon request by the applicant show- 
ing that circumstances beyond the control of the applicant 
have prevented action from being taken. No application 
shall be extended more than once. In order to renew action 
on an application after expiration, the applicant shall 
resubmit plans and pay a new plan review fee. 

103.4.4 Investigation Fees: Work Without a Permit. 

103.4.4.1 Whenever any work for which a permit is 
required by this code has been commenced without 
first obtaining said permit, a special investigation shall 
be made before a permit may be issued for such work. 

103.4.4.2 An investigation fee, in addition to the per- 
mit fee, shall be collected whether or not a permit is 
then or subsequently issued. The investigation fee 
shall be equal to the amount of the permit fee that 
would be required by this code if a permit were to be 
issued. The payment of such investigation fee shall not 
exempt any person from compliance with other pro- 
visions of this code, nor from any penalty prescribed 
by law. 

103.4.5 Fee Refunds. 

103.4.5.1 The Authority Having Jurisdiction shall be 
permitted to authorize the refunding of any fee paid 
hereunder that was erroneously paid or collected. 

103.4.5.2 The Authority Having Jurisdiction shall be 
permitted to authorize the refunding of not more than 
a percentage, as determined by this jurisdiction when 
no work has been done under a permit issued in 
accordance with this code. 



22 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION II 



103.4.5.3 The Authority Having Jurisdiction shall not 
authorize the refunding of any fee paid except upon 
written application filed by the original permittee 
not to exceed one-hundred and eighty (180) days 
after the date of fee payment. 

103.5 Inspections. 

103.5.1 General. Plumbing systems for which a permit 
is required by this code shall be inspected by the Author- 
ity Having Jurisdiction, 

No portion of any plumbing system shall be con- 
cealed until inspected and approved. Neither the Author- 
ity Having Jurisdiction nor the jurisdiction shall be liable 
for expense entailed in the removal or replacement of 
material required to permit inspection. When the instal- 
lation of a plumbing system is complete, an additional 
and final inspection shall be made. Plumbing systems 
regulated by this code shall not be connected to the water, 
the energy fuel supply, or the sewer system until author- 
ized by the Authority Having Jurisdiction. 

103.5.1.1 Inspection. No water supply system or 
portion thereof shall be covered or concealed until it 
first has been tested, inspected, and approved. 

103.5.1.2 Scope. New plumbing work and such por- 
tions of existing systems as may be affected by new 
work, or any changes, shall be inspected by the 
Authority Having Jurisdiction to ensure compliance 
with the requirements of this code and to ensure that 
the installation and construction of the plumbing sys- 
tem is in accordance with approved plans. 

103.5.1.3 Covering or Using. No plumbing or 
drainage system, building sewer, private sewer disposal 
system, or part thereof, shall be covered, concealed, or 
put into use until it has been tested, inspected, and 
accepted as prescribed in this code. 

103.5.1.4 Uncovering. If any drainage or plumbing 
system, building sewer, private sewage disposal sys- 
tem, or part thereof, which is installed, altered, or 
repaired, is covered or concealed before being 
inspected, tested, and approved as prescribed in this 
code, it shall be uncovered for inspection after notice 
to uncover the work has been issued to the respon- 
sible person by the Authority Having Jurisdiction. 

103.5.2 Operation of Plumbing Equipment. The 

requirements of this section shall not be considered to 
prohibit the operation of any plumbing installed to replace 
existing equipment or fixtures serving an occupied por- 
tion of the building in the event a request for inspection of 
such equipment or fixture has been filed with the Author- 
ity Having Jurisdiction not more than seventy-two (72) 
hours after such replacement work is completed, and 
before any portion of such plumbing system is concealed 
by any permanent portion of the building. 

103.5.3 Testing of Systems. Plumbing systems shall be 
tested and approved as required by this code or the 
Authority Having Jurisdiction. 



103.5.3.1 Test. Tests shall be conducted in the pres- 
ence of the Authority Having Jurisdiction or the 
Authority Having Jurisdiction's duly appointed rep- 
resentative. 

103.5.3.2 Test Waived. No test or inspection shall 
be required where a plumbing system, or part thereof, 
is set up for exhibition purposes and has no connec- 
tion with a water or drainage system. 

103.5.3.3 Exceptions. In cases where it would be 
impractical to provide the required water or air tests, 
or for minor installations and repairs, the Authority 
Having Jurisdiction shall be permitted to make such 
inspection as deemed advisable in order to be 
assured that the work has been performed in accor- 
dance with the intent of this code. 

103.5.3.4 Tightness. Joints and connections in the 
plumbing system shall be gas-tight and water-tight 
for the pressures required by test. 

103.5.4 Inspection Requests. It shall be the duty of the 
person doing the work authorized by a permit to notify the 
Authority Having Jurisdiction that such work is ready for 
inspection. The Authority Having Jurisdiction shall be per- 
mitted to require that every request for inspection be filed 
not less than one (1) working day before such inspection is 
desired. Such request may be in writing or by telephone, at 
the option of the Authority Having Jurisdiction. 

It shall be the duty of the person requesting inspec- 
fions required by this code to provide access to and 
means for proper inspection of such work. 

103.5.4.1 Advance Notice. It shall be the duty of the 
person doing the work authorized by the permit to 
notify the Authority Having Jurisdiction, orally or 
in writing, that said work is ready for inspection. 
Such notification shall be given not less than twenty- 
four (24) hours before the work is to be inspected. 

103.5.4.2 Responsibility. It shall be the duty of the 
holder of a permit to make sure that the work will 
stand the test prescribed before giving the notification. 

The equipment, material, and labor necessary 
for inspection or tests shall be fiimished by the per- 
son to whom the permit is issued or by whom 
inspection is requested. 

103.5.5 Other Inspections. In addition to the inspections 
required by this code, the Authority Having Jurisdiction 
shall be permitted to require other inspections of any 
plumbing work to ascertain compliance with the provi- 
sions of this code and other laws that are enforced by the 
Authority Having Jurisdiction. 

103.5.5.1 Defective Systems. An air test shall be 
used in testing the sanitary condition of the drainage 
or plumbing system of any building premises when 
there is reason to believe that it has become defec- 
tive. In buildings or premises condemned by the 
proper Authority Having Jurisdiction because of an 
insanitary condition of the plumbing system or part 
thereof, the alterations in such system shall conform 
to the requirements of this code. 



2010 CALIFORNIA PLUMBING CODE 



23 



ADMINISTRATION DIVISION II 



103.5.5.2 Moved Structures. Parts of the plumbing 
systems of any building or part thereof that is moved 
from one (1) foundation to another, or from one (1) 
location to another, shall be completely tested as pre- 
scribed elsewhere in this section for new work, 
except that walls or floors need not be removed dur- 
ing such test when other equivalent means of inspec- 
tion acceptable to the Authority Having Jurisdiction 
are provided. 

103.5.6 Reinspections. A reinspection fee shall be per- 
mitted to be assessed for each inspection or reinspection 
when such portion of work for which inspection is called 
is not complete or when required corrections have not 
been made. 

This provision is not to be interpreted as requiring 
reinspection fees the first time a job is rejected for fail- 
ure to comply with the requirements of this code, but as 
controlling the practice of calling for inspections before 
the job is ready for inspection or reinspection. 

Reinspection fees shall be permitted to be assessed 
when the approved plans are not readily available to the 
inspector, for failure to provide access on the date for 
which the inspection is requested, or for deviating from 
plans requiring the approval of the Authority Having 
Jurisdiction. 

To obtain reinspection, the applicant shall file an 
application therefore in writing upon a form furnished 
for that purpose and pay the reinspection fee in accor- 
dance with Table 1-1. 

In instances where reinspection fees have been 
assessed, no additional inspection of the work will be 
performed until the required fees have been paid. 

103.5.6.1 Corrections. Notices of correction or vio- 
lation shall be written by the Authority Having Juris- 
diction and shall be permitted to be posted at the site 
of the work or mailed or delivered to the permittee or 
his authorized representative. 

Refusal, failure, or neglect to comply with any 
such notice or order within ten (10) days of receipt 
thereof, shall be considered a violation of this code 
and shall be subject to the penalties set forth else- 
where in this code for violations. 

103.5.6.2 Retesting. If the Authority Having Juris- 
diction fmds that the work will not pass the test, nec- 
essary corrections shall be made, and the work shall 
then be resubmitted for test or inspection, 

103.5.6.3 Approval. Upon the satisfactory comple- 
tion and final test of the plumbing system, a certifi- 
cate of approval shall be issued by the Authority 
Having Jurisdiction to the permittee on demand. 

103.6 Connection Approval. 

103.6.1 Energy Connections. No person shall make 
connections from a source of energy or fuel to any 
plumbing system or equipment regulated by this code 
and for which a permit is required until approved by the 
Authority Having Jurisdiction. 



103.6.2 Other Connections. No person shall make con- 
nection from any water-supply line nor shall connect to 
any sewer system regulated by this code and for which a 
permit is required until approved by the Authority Hav- 
ing Jurisdiction. 

103.6.3 Temporary Connections. The Authority Having 
Jurisdiction shall be permitted to authorize temporary 
connection of the plumbing equipment to the source of 
energy or fuel for the purpose of testing the equipment. 

103.7 Unconstitutional. 

103.7.1 If any section, subsection, sentence, clause, or 
phrase of this code is, for any reason, held to be uncon- 
stitutional, such decision shall not affect the validity of 
the remaining portions of this code. The Legislative body 
hereby declares that it would have passed this code, and 
each section, subsection, sentence, clause, or phrase 
thereof, irrespective of the fact that one (1) or more sec- 
tions, subsections, sentences, clauses, and phrases are 
declared unconstitutional. 

103.8 VaUdity. 

103.8.1 If any provision of this code, or the application 
thereof to any person or circumstance, is held invalid, the 
remainder of the code, or the application of such provi- 
sion to other persons or circumstances, shall not be 
affected thereby. 

103.8.2 Wherever in this code reference is made to an 
appendix, the provisions in the appendix shall not apply 
unless specifically adopted. 



24 



2010 CALIFORNIA PLUMBING CODE 



ADMINISTRATION DIVISION II 



TABLE 1-1 
PLUMBING PERMIT FEES 
Permit Issuance 

1. For issuing each permit *_ 

2. For issuing each supplemental permit *_ 

Unit Fee Schedule (in addition to items 1 and 2 above) 

1 . For each plumbing fixture on one (1) trap or a set of fixtures on one (1) trap (including water, 
drainage piping, and backflow protection therefore) * 

2. For each building sewer and each trailer park sewer *_ 

3. Rainwater systems - per drain (inside building) *_ 

4. For each cesspool (where permitted) * 

5. For each private sewage disposal system * 

6. For each water heater and/or vent * 

7. For each gas piping system of one (1) to five (5) outlets *_ 

8. For each additional gas piping system outlet, per outlet *_ 

9. For each industrial waste pretreatment interceptor, including its trap and vent, 

except kitchen-type grease interceptors functioning as fixture traps *_ 

10. For each installation, alteration, or repair of water piping and/or water treating equipment, each *_ 

11. For each repair or alteration of drainage or vent piping, each fixture *_ 

12. For each lawn sprinkler system on any one (1) meter including backflow protection devices therefore ....*_ 

13. For atmospheric-type vacuum breakers not included in item 12: 

lto5 *_ 

over 5, each *_ 

14. For each backflow protective device other than atmospheric-type vacuum breakers: 

2 inch (50 mm) diameter and smaller *_ 

over 2 inch (50 mm) diameter * 

15. For each graywater system *_ 

16. For initial installation and testing for a reclaimed water system *_ 

1 7 . For each annual cross-connection testing of a reclaimed water system (excluding initial test) *_ 

18. For each medical gas piping system serving one (1) to five (5) inlet(s)/outlet(s) for a specific gas *_ 

19. For each additional medical gas inlet(s)/outlet(s) *_ 

Other Inspections and Fees 

1. Inspections outside of normal business hours *_ 

2. Reinspection fee * 

3. Inspections for which no fee is specifically indicated *_ 

4. Additional plan review required by changes, additions, or 

revisions to approved plans (minimum charge - one-half (Vi) hour) *_ 

* Jurisdiction will indicate their fees here. 



201 CALIFORNIA PLUMBING CODE 25 



26 201 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 2 - DEFINITIONS 



Adopting Agency 


BSD 


SFM 


HCD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


ss 


ss/cc 


1 


2 


3 


^ 












Adopt Entire Chapter 


X 


X 










X 


X 




















Adopt Entire Chapter as 
amended (amended sections 
listed below) 






X 


X 


X 








X 


X 


X 


X 












Adopt only those sections 
that are listed below 




























X 








Chapter/Section 


203.0 






X 


X 




























204.0 






X 


X 




























205.0 










X 


















X 








206.0 






X 


X 


X 


























207.0 






X 


X 


X 


























208.0 




























X 


210.0 


















X 


X 


X 


X 












214.0 






X 


X 




























216.0 






X 


X 




























221.0 


















X 


X 


X 


X 












221.0 Single Family Dwelling 






t 


t 


t 


























222.0 






X 


X 










X 


X 


X 


X 












223.0 






X 


X 




















X 








225.0 






X 


X 




























The state agency does not a 


dopt 


sectic 


)ns ] 


den 


tified 


byt 


he fo 


llowin 


gs> 


mb 


Dl:1 















2010 CALIFORNIA PLUMBING CODE 



27 



28 2010 CALIFORNIA PLUMBING CODE 



CHAPTER 2 
DEFINITIONS 



201.0 General. 

For the purpose of this code, the following terms have the 
meanings indicated in this chapter. 

No attempt is made to define ordinary words, which are 
used in accordance with their estabhshed dictionary mean- 
ings, except where a word has been used loosely and it is nec- 
essary to define its meaning as used in this code to avoid 
misunderstanding . 

The definitions of terms are arranged alphabetically ac- 
cording to the first word of the term. 

202.0 Definition of Terms. 

203.0 ~A~ 

ABS. Acrylonitrile-butadiene-styrene. 

Accessible. When applied to a fixture, connection, appliance, 
or equipment, "accessible" means having access thereto, but 
which first may require the removal of an access panel, door, 
or similar obstruction. "Readily accessible" means direct ac- 
cess without the necessity of removing any panel, door, or 
similar obstruction. 

Airbreak. A physical separation which may be a low inlet 
into the indirect waste receptor fi-om the fixture, appliance, 
or device indirectly connected. 

Airgap, Drainage. The unobstructed vertical distance 
through the free atmosphere between the lowest opening from 
any pipe, plumbing fixture, appliance, or appurtenance con- 
veying waste to the flood-level rim of the receptor. 

Airgap, Water Distribution. The unobstructed vertical dis- 
tance through the free atmosphere between the lowest open- 
ing from any pipe or faucet conveying potable water to the 
flood-level rim of any tank, vat, or fixture. 

Anchors. See Supports. 

Approved. Acceptable to the Authority Having Jurisdiction. 

Exception: [HCD 1 & HCD 2] ''Approved" means meeting 
the approval of the Enforcing Agency, except as otherwise 
provided by law, when used in connection with any system, 
material, type of construction, fixture or appliance as the re- 
sult of investigations and tests conducted by the agency, or 
by reason of accepted principles or tests by national author- 
ities, or technical, health, or scientific organizations or agen- 
cies. 

Notes: 

1. See Health and Safety Code Section 1 7920 for 'Ap- 
proved" as applied to residential construction and build- 
ings or structures accessory thereto as referenced in 
Section 1.8.2. 

2. See Health and Safety Code Section 17921.1 for 'Ap- 
proved" as applied to the use of the hotplates in resi- 
dential construction as referenced in Section 1.8.2. 



3. See Health and Safety Code Section 17921.3 for "Ap- 
proved" as applied to low-flush water closets in resi- 
dential construction as referenced in Section 1.8.2. 

4. See Health and Safety Code 19966 for "Approved" as 
applied to Factory-Built Housing as referenced in Sec- 
tion 1.8.3.2.5. 

5. See Health and Safety Code Section 18201 for "Ap- 
proved" as applied to Mobilehome Parks as referenced 
in Section L8.2. 

6. See Health and Safety Code Section 18862.1 for "Ap- 
proved" as applied to Special Occupancy Parks as ref- 
erenced in Section 1.8.2. 

Approved Testing Agency. An organization primarily estab- 
lished for purposes of testing to approved standards and ap- 
proved by the Authority Having Jurisdiction. 

[HCD 1 & HCD 2] "Approved Testing Agency" is any 
agency which is determined by the enforcing agency, except 
as otherwise provided by statute, to have adequate personnel 
and expertise to carry out the testing of systems, materials, 
and construction fixtures or appliances. 

Area Drain. A receptor designed to collect surface or storm 
water from an open area. 

Aspirator. A fitting or device supplied with water or other 
fluid under positive pressure that passes through an integral 
orifice or constriction, causing a vacuum. 

Authority Having Jurisdiction. The organization, office, or 
individual responsible for enforcing the requirements of a 
code or standard, or for approving equipment, materials, in- 
stallations, or procedures. The Authority Having Jurisdiction 
shall be a federal, state, local, or other regional department 
or an individual such as a plumbing official, mechanical of- 
ficial, labor department official, health department official, 
building official, or others having statutory authority. In the 
absence of a statutory authority, the Authority Having Juris- 
diction may be some other responsible party. This definition 
shall include the Authority Having Jurisdiction's duly au- 
thorized representative. 

[HCD 1 & HCD 2] "Authority Having Jurisdiction " shall 
mean "Enforcing Agency " as defined in Section 207. of this 
code. 

204.0 -B- 

Backflow. The flow of water or other liquids, mixtures, or 
substances into the distributing pipes of a potable supply of 
water from any sources other than its intended source. See 
Back-Siphonage, Back-Pressure Backflow. 

Backflow Connection. Any arrangement whereby backflow 
can occur. 



2010 CALIFORNIA PLUMBING CODE 



29 



DEFINITIONS 



Back-Pressure Backflow. Backflow due to an increased 
pressure above the supply pressure, which may be due to 
pumps, boilers, gravity, or other sources of pressure. 

Backflow Preventer. A device or means to prevent backflow 
into the potable water system. 

Back-Siphonage. The flowing back of used, contaminated, 
or polluted water from a plumbing fixture or vessel into a 
water supply pipe due to a pressure less than atmospheric in 
such pipe. See Backflow. 

Backwater Valve. A device installed in a drainage system to 
prevent reverse flow. 

Bathroom Group. A group of fixtures consisting of a water 
closet, one or two lavatories, and either a bathtub, a combi- 
nation bath/shower, or a shower and may include a urinal or 
bidet and an emergency floor drain. 

Bathroom, Half. A room equipped with only a water closet 
and lavatory. 

Battery of Fixtures. Any group of two (2) or more similar, 
adjacent fixtures that discharge into a common horizontal 
waste or soil branch. 

Boiler Blowoff. An outlet on a boiler to permit emptying or 
discharge of sediment. 

Branch. Any part of the piping system other than a main, 
riser, or stack. 

Branch, Fixture. See Fixture Branch. 

Branch, Horizontal. See Horizontal Branch. 

Branch Vent, A vent connecting one (1) or more individual 
vents with a vent stack or stack vent. 

Building. A structure built, erected, and framed of compo- 
nent structural parts designed for the housing, shelter, enclo- 
sure, or support of persons, animals, or property of any kind. 

Exceptions: [HCD 1 & HCD 2] "BUILDING " shall not in- 
clude the following: 

1. Any mobilehome as defined in Health and Safety Code 
Section 18008. 

2. Any manufactured home as defined in Health and Safety 
Code Section 18007. 

3. Any commercial modular as defined in Health and Safety 
Code Section 18001.8 or any special purpose commer- 
cial modular as defined in Section 18012.5. 

4. Any recreational vehicle as defined in Section Health and 
Safety Code 18010. 

1 1 5. Any multifamily manufactured home as defined in Health 
and Safety Code Section 18008. 7. 

For additional information, see Health and Safety Code Sec- 
tion 18908. 

Building Drain. That part of the lowest piping of a drainage 
system that receives the discharge from soil, waste, and other 
drainage pipes inside the walls of the building and conveys it 
to the building sewer beginning two (2) feet (610 mm) outside 
the building wall. 

Building Drain (Sanitary). A building drain that conveys 
sewage only. 



Building Drain (Storm). A building drain that conveys storm 
water or other drainage, but no sewage. 

Building Sewer. That part of the horizontal piping of a 
drainage system that extends from the end of the building 
drain and that receives the discharge of the building drain and 
conveys it to a public sewer, private sewer, private sewage 
disposal system, or other point of disposal. 

Building Sewer (Combined). A building sewer that conveys 
both sewage and storm water or other drainage. 

Building Sewer (Sanitary). A building sewer that conveys 
sewage only. 

Building Sewer (Storm). A building sewer that conveys 
storm water or other drainage, but no sewage. 

Building Subdrain. That portion of a drainage system that 
does not drain by gravity into the building sewer. 

Building Supply. The pipe carrying potable water from the 
water meter or other source of water supply to a building or 
other point of use or distribution on the lot. Building supply 
shall also mean water service. 

205.0 - C - 

Certified Backflow Assembly Tester. A person who has 
shown competence to test and maintain backflow assembhes 
to the satisfaction of the Authority Having Jurisdiction. 

Cesspool. A lined excavation in the ground that receives the 
discharge of a drainage system or part thereof, so designed as 
to retain the organic matter and solids discharging therein, but 
permitting the liquids to seep through the bottom and sides. 

Chemical Waste. See Special Wastes. 

Clarifier. See Interceptor. 

Clear Water Waste. Cooling water and condensate drainage 
from refrigeration and air-conditioning equipment; cooled 
condensate from steam heating systems; and cooled boiler 
blowdown water. 

Clinic Sink. A sink designed primarily to receive wastes from 
bedpans and having a flush rim, an integral trap with a visi- 
ble trap seal, and the same flushing and cleansing character- 
istics as a water closet. 

Code. A standard that is an extensive compilation of provi- 
sions covering broad subject matter or that is suitable for 
adoption into law independently of other codes and standards. 

Combination Thermostatic/Pressure Balancing Valve. A 

mixing valve that senses outlet temperature and incoming hot 
and cold water pressure and compensates for fluctuations in 
incoming hot and cold water temperatures and/or pressures 
to stabihze outlet temperatures. 

Combination Waste and Vent System. A specially designed 
system of waste piping embodying the horizontal wet venting 
of one or more sinks or floor drains by means of a common 
waste and vent pipe, adequately sized to provide free move- 
ment of air above the flow line of the drain. 

Combined Building Sewer. See Building Sewer (Com- 
bined). 



30 



2010 CALIFORNIA PLUMBING CODE 



DEFINITIONS 



Commissaries Serving Mobile Food Preparation Units 
[DPH], A food establishment in which food, containers, equip- 
ment or supplies are stored or handled for use in vehicles, mo- 
bile food preparation units, food carts or vending machines. 

Common. That part of a plumbing system that is so designed 
and installed as to serve more than one (1) appliance, fixture, 
building, or system. 

Conductor, A pipe inside the building that conveys storm 
water from the roof to a storm drain, combined building 
sev^er, or other approved point of disposal. 

Confined Space. A room or space having a volume less than 
fifty (50) cubic feet per 1,000 Btu/h (1.4 m3/293 W) of the 
aggregate input rating of all fuel-burning appliances installed 
in that space. 

Contamination. An impairment of the quality of the potable 
water that creates an actual hazard to the public health 
through poisoning or through the spread of disease by 
sewage, industrial fluids, or waste. Also defined as High Haz- 
ard. 

Continuous Vent. A vertical vent that is a continuation of the 
drain to which it connects. 

Continuous Waste. A drain connecting the compartments of 
a set of fixtures to a trap or connecting other permitted fix- 
tures to a common trap. 

Covered Multifamily Dwellings [HCD 1-ACJ. See Section 
1.8,2.1.2. 

CPVC. Chlorinated Poly (Vinyl Chloride). 

Critical Level. The critical level (C-L or C/L) marking on a 
backflow prevention device or vacuum breaker is a point con- 
forming to approved standards and established by the testing 
laboratory (usually stamped on the device by the manufac- 
turer) that determines the minimum elevation above the flood- 
level rim of the fixture or receptor served at which the device 
may be installed. When a backflow prevention device does 
not bear a critical level marking, the bottom of the vacuum 
breaker, combination valve, or the bottom of any such ap- 
proved device shall constitute the critical level. 

Cross-Connection. Any connection or arrangement, physical 
or otherwise, between a potable water supply system and any 
plumbing fixture or any tank, receptor, equipment, or device, 
through which it may be possible for nonpotable, used, un- 
clean, polluted, and contaminated water, or other substances 
to enter into any part of such potable water system under any 
condition. 

206.0 -D- 

Department [HCD 1, HCD 2 & HCD 1-A C]. ''Department " 
means the Department of Housing and Community Develop- 
ment. 

Department Having Jurisdiction. The Authority Having Ju- 
risdiction, including any other law enforcement agency af- 
fected by any provision of this code, whether such agency is 
specifically named or not. 



[HCD 1 & HCD 2] 'Department Having Jurisdiction " shall 
mean "Enforcing Agency'' as defined in Section 207.0 of this 
code. 

Design Flood Elevation. The elevation of the "design flood," 
including wave height, relative to the datum specified on the 
community's legally designated flood hazard map. 

Developed Length. The length along the center line of a pipe 
and fittings. 

Diameter. Unless specifically stated, "diameter" is the nom- 
inal diameter as designated commercially 

Domestic Sewage. The liquid and water-borne wastes de- 
rived from the ordinary living processes, free from industrial 
wastes, and of such character as to permit satisfactory dis- 
posal, without special treatment, into the public sewer or by 
means of a private sewage disposal system. 

Downspout. The rain leader from the roof to the building 
storm drain, combined building sewer, or other means of dis- 
posal located outside of the building. See Conductor and 
Leader. 

Drain. Any pipe that carries waste or waterbome wastes in a 
building drainage system. 

Drainage System. Includes all the piping within public or 
private premises that conveys sewage or other liquid wastes 
to a legal point of disposal, but does not include the mains of 
a public sewer system or a public sewage treatment or dis- 
posal plant. 

Durham System. A soil or waste system in which all piping 
is threaded pipe, tubing, or other such rigid construction, 
using recessed drainage fittings to correspond to the types of 
piping. 



207.0 



-E~ 



Effective Opening. The minimum cross-sectional area at the 
point of water supply discharge measured or expressed in 
terms of (1) diameter of a circle or (2) if the opening is not cir- 
cular, the diameter of a circle of equivalent cross-sectional 
area. (This is applicable also to airgap.) 

Enforcing Agency [HCD 1, HCD 2 & HCD 1-ACJ. "En- 
forcing Agency" is the designated department or agency as 
specified by statute or regulation. 

Essentially Nontoxic Transfer Fluid. Essentially nontoxic 
at practically nontoxic, Toxicity Rating Class 1 (reference 
"Clinical Toxicology of Commercial Products" by Gosselin, 
Smith, Hodge, & Braddock). 

Excess Flow Valve (EFV). A valve designed to activate when | 
the fuel gas passing through it exceeds a prescribed flow rate. 

Existing Work. A plumbing system or any part thereof that 
has been installed prior to the effective date of this code. 

208.0 -F- 

Fixture Branch. A water supply pipe between the fixture 
supply pipe and the water distributing pipe. 



2010 CALIFORNIA PLUMBING CODE 



31 



DEFINITIONS 



Fixture Drain. The drain from the trap of a fixture to the 
junction of that drain with any other drain pipe. 

Fixture Supply. A water supply pipe connecting the fixture 
with the fixture branch. 

Fixture Unit. A quantity in terms of which the load-produc- 
ing effects on the plumbing system of different kinds of 
plumbing fixtures are expressed on some arbitrarily chosen 
scale. 

Flammable Vapor or Fumes. The concentration of flamma- 
ble constituents in air that exceeds 25 percent of its lower 
flammability limit (LFL). 

Flood Hazard Area. The greater of the following two areas: 

( 1 ) The area within a floodplain subj ect to a one ( 1 ) percent 
or greater chance of flooding in any given year. 

(2) The area designated as a flood hazard area on a commu- 
nity's flood hazard map, or otherwise legally designated. 

Flood Hazard Area Subject to High Velocity Wave Action. 

Area within the flood hazard area that is subject to high ve- 
locity wave action, and shown on a Flood Insurance Rate Map 
or other flood hazard map as Zone V, VO, YE or VI -30. 

Flood Level. See Flooded. 

Flood-Level Rim. The top edge of a receptor from which 
water overflows. 

Flooded. A fixture is flooded when the Hquid therein rises to 
the flood-level rim. 

Flush Tank. A tank located above or integral with water clos- 
ets, urinals, or similar fixtures for the purpose of flushing the 
usable portion of the fixture. 

Flush Valve. A valve located at the bottom of a tank for the 
purpose of flushing water closets and similar fixtures. 

Flushometer Tank. A tank integrated within an air accumu- 
lator vessel that is designed to discharge a predetermined 
quantity of water to fixtures for flushing purposes. 

Flushometer Valve. A valve that discharges a predetermined 
quantity of water to fixtures for flushing purposes and is ac- 
tuated by direct water pressure. 

FOG Disposal System. A grease interceptor that reduces 
nonpetroleum fats, oils, and grease (FOG) in effluent by sep- 
aration, mass and volume reduction. 

I Food Establishment [DPH], Any room, building, place or 
portion thereof, maintained, used or operated for purpose of 
storing, preparing, serving, packaging, transporting, sal- 
vaging or otherwise handling food at the retail level 

209.0 - G - 

Gang or Group Shower. Two (2) or more showers in a com- 
mon area. 

Grade. The slope or fall of a line of pipe in reference to a 
horizontal plane. In drainage, it is usually expressed as the 
fall in a fraction of an inch (mm) or percentage slope per foot 
(meter) length of pipe. 

Gravity Grease Interceptor. A plumbing appurtenance or 
appliance that is installed in a sanitary drainage system to in- 
tercept nonpetroleum fats, oils, and greases (FOG) from a 



wastewater discharge and is identified by volume, thirty (30) 
minute retention time, baffle(s), not less than two (2) com- 
partments, a total volume of not less than three-hundred (300) 
gallons, and gravity separation. [These interceptors comply 
with the requirements of Chapter 10 or are designed by a reg- 
istered professional engineer.] Gravity grease interceptors are 
generally installed outside. 

Grease Interceptor. A plumbing appurtenance or apphance 
that is installed in a sanitary drainage system to intercept non- 
petroleum fats, oil, and greases (FOG) from a wastewater dis- 
charge. 

Grease Removal Device (GRD). Any hydro-mechanical 
grease interceptor that automatically, mechanically removes 
non-petroleum fats, oils and grease (FOG) from the intercep- 
tor, the control of which are either automatic or manually ini- 
tiated. 



210.0 



-H 



Handwashing Fixture [OSHPD 1,2, 3 & 4J. Is a special ap- 
plication sink having a water supply spout mounted so the 
discharge point is at least 5 inches (127 mm) above the fixture 
rim and equipped with hot and cold supply controls not re- 
quiring direct contact of the hands for operation. The fixture 
can not be equipped with an aerator and wrist or elbow blade 
handles but may be equipped with a non-aerating laminar 
flow device. Sensor operated fixtures may be used, provided 
they are either battery operated or connected to the essential 
electrical system. Deck-mounted manual temperature con- 
trols shall be permitted. 

Hangers. See Supports. 

High Hazard. See Contamination. 

Horizontal Branch. A drain pipe extending laterally from a 
soil or waste stack or building drain with or without vertical 
sections or branches, which receives the discharge from one 
(1) or more fixture drains and conducts it to the soil or waste 
stack or to the building drain. 

Horizontal Pipe. Any pipe or fitting that is installed in a hor- 
izontal position or which makes an angle of less than forty- 
five (45) degrees with the horizontal. 

Hot Water. Water at a temperature exceeding or equal to 
120T (49°C). 

House Drain. See Building Drain. 
House Sewer. See Building Sewer. 

Hydromechanical Grease Interceptor. A plumbing appur- 
tenance or appliance that is installed in a sanitary drainage 
system to intercept nonpetroleum fats, oil, and grease (FOG) 
from a wastewater discharge and is identified by flow rate, 
and separation and retention efficiency. The design incorpo- 
rates air entrainment, hydromechanical separation, interior 
baffling, and/or barriers in combination or separately, and one 
of the following: 

A - External flow control, with air intake (vent): directly con- 
nected 

B - External flow control, without air intake (vent): directly 
connected 



32 



2010 CALIFORNIA PLUMBING CODE 



DEFINITIONS 



C - Without external flow control, directly connected 

D - Without external flow control, indirectly connected 

[These interceptors comply with the requirements of Table 
10-2.] Hydromechanical grease interceptors are generally in- 
stalled inside. 

211.0 -I- 

Indirect Waste Pipe. A pipe that does not connect directly 
with the drainage system but conveys liquid wastes by dis- 
charging into a plumbing fixture, interceptor, or receptacle 
that is directly connected to the drainage system. 

Individual Vent. A pipe installed to vent a fixture trap and 
that connects with the vent system above the fixture served or 
terminates in the open air. 

Industrial Waste. Any and all liquid or water-borne waste 
from industrial or commercial processes, except domestic 
sewage. 

Insanitary. A condition that is contrary to sanitary principles 
or is injurious to health. 

Conditions to which "insanitary'' shall apply include the 
following: 

(1) Any trap that does not maintain a proper trap seal. 

(2) Any opening in a drainage system, except where lawful, 
I that is not provided with an approved hquid-sealed trap. 

(3) Any defective fixture, trap, pipe, or fitting. 

(4) Any trap, except where in this code exempted, directly 
connected to a drainage system, the seal of which is not 
protected against siphonage and back-pressure by a vent 
pipe. 

(5) Any connection, cross-connection, construction, or con- 
dition, temporary or permanent, that would permit or 
make possible by any means whatsoever for any unap- 
proved foreign matter to enter a water distribution system 
used for domestic purposes. 

(6) The foregoing enumeration of conditions to which the 
term "insanitary" shall apply, shall not preclude the ap- 
plication of that term to conditions that are, in fact, in- 
sanitary. 

Interceptor (Clarifier). A device designed and installed so as 
to separate and retain deleterious, hazardous, or undesirable 
matter from normal wastes and permit normal sewage or liq- 
uid wastes to discharge into the disposal terminal by gravity. 

Invert. The lowest portion of the inside of a horizontal pipe. 

212.0 -J- 

Joint, Brazed. Any joint obtained by joining of metal parts 
with alloys that melt at temperatures exceeding 840°F 
(449°C), but less than the melting temperature of the parts to 
be joined. 

Joint, Soldered. A joint obtained by the joining of metal parts 
with metallic mixtures or alloys that melt at a temperature up 
to and including 840^F (449°C). 



213.0 

No definitions 

214.0 



K- 



-L 



Labeled. Equipment or materials bearing a label of a listing 
agency (accredited conformity assessment body). See Listed 
(third-party certified). 

[HCD 1 & HCD 2] ''Labeled'' means equipment or materi- 
als to which has been attached a label, symbol or other iden- 
tifying mark of an organization, approved by the Department, 
that maintains aperiodic inspection program of production of 
labeled products, installations, equipment, or materials and 
by whose labeling the manufacturer indicates compliance 
with appropriate standards or performance in a specified 
manner 

Lavatory [HCD 1 & HCD 2], 'Lavatory" shall mean a 
plumbing fixture used for washing the hands, arms, face and 
head. 

Lavatories in Sets. Two (2) or three (3) lavatories that are 
served by one (1) trap. 

Leader. An exterior vertical drainage pipe for conveying 
storm water fi-om roof or gutter drains. See Downspout. 

Limited-Density Owner-Built Dwelling [HCD 7/. 'Limited- 
Density Owner-Built Dwelling" shall mean any structure 
consisting of one or more habitable rooms intended or de- 
signed to be occupied by one family with facilities for living 
or sleeping, with use restricted to rural areas designated by 
local jurisdiction in compliance with the requirements of 
Health and Safety Code Section 1 7958.2. 

Liquid Waste. The discharge fi-om any fixture, appliance, or 
appurtenance in connection with a plumbing system that does 
not receive fecal matter. 

Listed [HCD 1 & HCD 2], "Listed" means all products that 
appear in a list published by an approved testing or listing 
agency. For additional information, see Health and Safety 
Code Section 17920(h). 

Listed (Third-party certified). Equipment or materials in- 
cluded in a list published by a listing agency (accredited con- 
formity assessment body) that maintains periodic inspection 
on current production of listed equipment or materials and 
whose listing states either that the equipment or material com- 
plies with approved standards or has been tested and found 
suitable for use in a specified manner. 

Listing Agency. An agency accredited by an independent and 
authoritative conformity assessment body to operate a mate- 
rial and product listing and labelmg (certification) system and 
that is accepted by the Authority Having Jurisdiction, which 
is in the business of listing or labeling. The system includes 
inifial and ongoing product testing, a periodic inspection on 
current production of listed (certified) products, and makes 
available a pubHshed report of such listing in which specific 
information is included that the material or product conforms 
to appHcable standards and found safe for use in a specific 
manner. 



2010 CALIFORNIA PLUMBING CODE 



33 



DEFINITIONS 



[HCD 1 & HCD 2] ''Listing Agency " means an agency ap- 
proved by the department that is in the business of listing and 
labeling products, materials, equipment, and installations 
tested by an approved testing agency, and that maintains a 
periodic inspection program on current production of listed 
products, equipment, and installations, and that, at least an- 
nually, makes available a published report of these listings. 
For additional information, see Health and Safety Code Sec- 
tion 17 920(i). 

Lot. A single or individual parcel or area of land legally 
recorded or validated by other means acceptable to the Au- 
thority Having Jurisdiction on which is situated a building or 
which is the site of any work regulated by this code, together 
with the yards, courts, and unoccupied spaces legally required 
for the building or works, and that is owned by or is in the 
lawful possession of the owner of the building or works. 

Low Hazard. See Pollution. 

Low VOC Cement [HCD 1 & HCD 2]. Cement with a 
volatile organic compound (VOC) content of less than or 
equal to 490 g/Lfor CPVC Cement, 510g/Lfor PVC Cement, 
and 325 g/Lfor ABS Cement, as determined by the South 
Coast Air Quality Management Districts Laboratory Meth- 
ods of Analysis for Enforcement Samples, Method 31 6A. 

Low VOC One-Step Cement [HCD 1 & HCD 2J. Listed sol- 
vent cements that do not require the use of primer with a 
volatile organic compound (VOC) content of less than or 
equal to 490 g/Lfor CPVC Cement, 510 g/Lfor PVC Cement, 
and 325 g/L for ABS Cement, as determined by the South 
Coast Air Quality Management District's Laboratory Meth- 
ods of Analysis for Enforcement Samples, Method 316A. 

Low VOC Primer [HCD 1 & HCD 2], Primer with a volatile 
organic compound (VOC) content of less than or equal to 550 
g/L, as determined by the South Coast Air Quality Manage- 
ment District s Laboratory Methods of Analysis for Enforce- 
ment Samples, Method 316A. 

215.0 -M- 

Macerating Toilet System. A system comprised of a sump 
with macerating pump and with connections for a water closet 
and other plumbing fixtures, which is designed to accept, 
grind, and pump wastes to an approved point of discharge. 

Main. The principal artery of any system of continuous pip- 
ing to which branches may be cormected. 

Main Sewer. See Public Sewer. 

Main Vent. The principal artery of the venting system to 

which vent branches may be connected. 

May. A permissive term. 

Mobile Home Park Sewer. That part of the horizontal pip- 
ing of a drainage system that begins two (2) feet (610 mm) 
downstream from the last mobile home site and conveys it to 
a public sewer, private sewer, private sewage disposal sys- 
tem, or other point of disposal. 



216.0 



-N- 



Nonwater Supplied Urinal (Waterless Urinal) [HCD 1 & 

HCD 2], A plumbing fixture which does not require water 
supply and is designed to receive and convey the uninhibited 
flow of liquid waste to the gravity drainage system. 

Nuisance. Includes, but is not limited to: 

(1) Any public nuisance known at common law or in equity 
jurisprudence. 

(2) Whenever any work regulated by this code is dangerous 
to human life or is detrimental to health and property. 

(3) Inadequate or unsafe water supply or sewage disposal 
system. ' 

[HCD 1 & HCD 2] ''Nuisance'' shall mean any nuisance as 
defined in Health and Safety Code Section 1 7920(k). 

Notes: 

1 . For applications subject to the Mobilehome Parks Act as 
referenced in Section L8J.2.2 of this code, refer to Cal- 
ifornia Code of Regulations, Title 25, Division 1, Chap- 
ter 2 for the definition of "Nuisance''. 

2. For applications subject to the Special Occupancy Parks 
Act as referenced in Section 1.8.3.2.3 of this code, refer 
to California Code of Regulations, Title 25, Division 1, 
Chapter 2.2 for the definition of "Nuisance". 

217.0 -O- 

Offset. A combination of elbows or bends in a line of piping 
that brings one (1) section of the pipe out of line but into a line 
parallel with the other section. 

Oil Interceptor. See Interceptor. 

218.0 -P- 

PB. Polybutylene. 
PE. Polyethylene. 

PE-AL-PE. Polyethylene-aluminum-polyethylene. 

PEX, Cross-linked polyethylene. 

PEX-AL-PEX. Cross-linked polyethylene-aluminum-cross- 
linked polyethylene. 

Person. A natural person, his heirs, executor, administrators, 
or assigns and shall also include a firm, corporation, munici- 
pal or quasi-municipal corporation, or governmental agency. 
Singular includes plural, male includes female. 

Pipe. A cylindrical conduit or conductor conforming to the 
particular dimensions commonly known as "pipe size." 

Plumbing. The business, trade, or work having to do with the 
installation, removal, alteration, or repair of plumbing sys- 
tems or parts thereof 

Plumbing Appliance. Any one (1) of a special class of devices 
or equipment that is intended to perform a special plumbing 
function. Its operation and/or control may be dependent upon 
one (1) or more energized components, such as motors, con- 
trols, heating elements, or pressure- or temperature-sensing el- 
ements. Such device or equipment may operate automatically 
through one (1) or more of the following actions: a time cycle, 
a temperature range, a pressure range, a measured volume or 



34 



2010 CALIFORNIA PLUMBING CODE 



DEFINITIONS 



weight; or the device or equipment may be manually adjusted 
or controlled by the user or operator. 

Plumbing Appurtenance. A manufactured device, a prefab- 
ricated assembly, or an on-the-job assembly of component 
parts that is an adjunct to the basic piping system and plumb- 
ing fixtures. An appurtenance demands no additional water 
supply, nor does it add any discharge load to a fixture or the 
drainage system. It performs some useful function in the op- 
eration, maintenance, servicing, economy, or safety of the 
plumbing system. 

Plumbing Fixture. An approved-type installed receptacle, 
device, or appliance that is supplied with water or that re- 
ceives liquid or liquid-borne wastes and discharges such 
wastes into the drainage system to which it may be directly or 
indirectly connected. Industrial or commercial tanks, vats, 
and similar processing equipment are not plumbing fixtures, 
but may be connected to or discharged into approved traps or 
plumbing fixtures when and as otherwise provided for else- 
where in this code. 

Plumbing Official. See Authority Having Jurisdiction. 

Plumbing System. Includes all potable water, building sup- 
ply, and distribution pipes; all plumbing fixtures and traps; 
all drainage and vent pipes; and all building drains and build- 
ing sewers, including their respective joints and connections, 
devices, receptors, and appurtenances within the property 
lines of the premises and shall include potable water piping, 
potable water treating or using equipment, medical gas and 
medical vacuum systems, liquid and fuel gas piping, and 
water heaters and vents for same. 

Pollution. An impairment of the quality of the potable water 
to a degree that does not create a hazard to the public health 
but which does adversely and unreasonably affect the aes- 
thetic qualities of such potable water for domestic use. Also 
defined as Low Hazard. 

Potable Water. Water that is satisfactory for drinking, culi- 
nary, and domestic purposes and that meets the requirements 
of the Health Authority Having Jurisdiction. 

PP. Polypropylene. 

Pressure. The normal force exerted by a homogeneous liquid 
or gas, per unit of area, on the wall of the container. 

Static Pressure. The pressure existing without any flow. 

Residual Pressure. The pressure available at the fixture 
or water outlet after allowance is made for pressure drop 
due to friction loss, head, meter, and other losses in the 
system during maximum demand periods. 

Pressure-Balancing Valve. A mixing valve that senses in- 
coming hot and cold water pressures and compensates for 
fluctuations in either to stabilize outlet temperature. 

Private or Private Use. Applies to plumbing fixtures in res- 
idences and apartments, to private bathrooms in hotels and 
hospitals, and to restrooms in commercial establishments 
where the fixtures are intended for the use of a family or an 
individual. 



Private Sewage Disposal System. A septic tank with the ef- 
fluent discharging into a subsurface disposal field, into one 
(1) or more seepage pits, or into a combination of subsurface 
disposal field and seepage pit or of such other facilities as 
may be permitted under the procedures set forth elsewhere in 
this code. 

Private Sewer. A building sewer that receives the discharge 
from more than one (1) building drain and conveys it to a pub- 
lic sewer, private sewage disposal system, or other point of 
disposal. 

Public or Public Use. Applies to plumbing fixtures that are | 
not defined as private or private use. 

Public Sewer. A common sewer directly controlled by pub- 
lic authority. 

PVC. Poly(vinyl chloride). 

PVDF. Polyvinylidene Fluoride. 

219.0 -Q- 

No definitions 

220.0 - R - 

Receptor. An approved plumbing fixture or device of such 
material, shape, and capacity as to adequately receive the dis- 
charge from indirect waste pipes, so constructed and located 
as to be readily cleaned. 

Regulating Equipment. Includes all valves and controls used 
in a plumbing system that are required to be accessible or 
readily accessible. 

Relief Vent. A vent, the primary function of which is to pro- 
vide circulation of air between drainage and vent systems or 
to act as an auxiliary vent on a specially designed system. 

Remote Outlet. When used for sizing water piping, it is the 
furthest outlet dimension, measuring from the meter, either 
the developed length of the cold-water piping or through the 
water heater to the furthest outlet on the hot-water piping. 

Rim. See Flood-Level Rim. 

Riser. A water supply pipe that extends vertically one (1) full 
story or more to convey water to branches or fixtures. 

Roof Drain. A drain installed to receive water collecting on 
the surface of a roof and to discharge it into a leader, down- 
spout, or conductor. 

Roughing-In. The installation of all parts of the plumbing 
system that can be completed prior to the installation of fix- 
tures. This includes drainage, water supply, gas piping, vent 
piping, and the necessary fixture supports. 

221.0 - S - 

Sand Interceptor. See Interceptor. 

Scrub Sink [OSHPD 1,2, 3 & 4]. Is a sink used to wash and 
scrub the hands and arms during the septic preparation for 
surgery and equipped with a supply spout and controls as re- 
quired for a handwashing fixture. Deck-mounted manual tem- 
perature controls shall be permitted. 



2010 CALIFORNIA PLUMBING CODE 



35 



DEFINITIONS 



SDR. An abbreviation for "standard dimensional ratio," 
which is the specific ratio of the average specified outside di- 
ameter to the minimum wall thickness for outside controlled 
diameter plastic pipe. 

Seepage Pit. A lined excavation in the ground which receives 
the discharge of a septic tank so designed as to permit the ef- 
fluent from the septic tank to seep through its bottom and 
sides. 

Septic Tank. A water-tight receptacle that receives the dis- 
charge of a drainage system or part thereof, designed and con- 
structed so as to retain solids, digest organic matter through 
a period of detention, and allow the liquids to discharge into 
the soil outside of the tank through a system of open joint pip- 
ing or a seepage pit meeting the requirements of this code. 

Sewage. Any liquid waste containing animal or vegetable 
matter in suspension or solution and that may include liquids 
containing chemicals in solution. 

Sewage Ejector. A device for lifting sewage by entraining it 
on a high-velocity jet stream, air, or water. 

Sewage Pump. A permanently installed mechanical device, 
other than an ejector, for removing sewage or liquid waste 
from a sump. 

Shall. Indicates a mandatory requirement. 

Shielded Coupling. An approved elastomeric sealing gasket 
with an approved outer shield and a tightening mechanism. 

Shock Arrester. See Water Hammer Arrester. 

Should. Indicates a recommendation or that which is advised 
but not required. 

Single-Family Dwelling. A building designed to be used as 
a home by the owner of such building, which shall be the only 
dwelling located on a parcel of ground with the usual acces- 
sory buildings. 

Size and Type of Tubing. See Diameter. 

Slip Joint. An adjustable tubing connection, consisting of a 
compression nut, a friction ring, and a compression washer, 
designed to fit a threaded adapter fitting or a standard taper 
pipe thread. 

Slope. See Grade. 

Soil Pipe. Any pipe that conveys the discharge of water clos- 
ets, urinals, clinic sinks, or fixtures having similar ftinctions 
of collection and removal of domestic sewage, with or with- 
out the discharge from other fixtures, to the building drain or 
building sewer. 

Special Wastes. Wastes that require some special method of 
handling, such as the use of indirect waste piping and recep- 
tors, corrosion-resistant piping, sand, oil or grease intercep- 
tors, condensers, or other pretreatment facilities. 

Stack. The vertical main of a system of soil, waste, or vent 
piping extending through one (1) or more stories. 

Stack Vent. The extension of a soil or waste stack above the 
highest horizontal drain connected to the stack. 



Standard. A document, the main text of which contains only 
mandatory provisions using the word "shall" to indicate re- 
quirements and which is in a form generally suitable for 
mandatory reference by another standard or code or for adop- 
tion into law. Nonmandatory provisions shall be located in an 
appendix, footnote, or fine print note and are not to be con- 
sidered a part of the requirements of a standard. 

Storm Drain. See Building Drain (Storm). 

Storm Sewer. A sewer used for conveying rainwater, surface 
water, condensate, cooling water, or similar liquid wastes. 

Subsoil Drain. A drain that collects subsurface or seepage 
water and conveys it to a place of disposal. 

Sump. An approved tank or pit that receives sewage or liquid 
waste and which is located below the normal grade of the 
gravity system and which must be emptied by mechanical 
means. 

Supports. Supports, hangers, and anchors are devices for 
properly supporting and securing pipe, fixtures, and equip- 
ment. 

222.0 - T - 

Tailpiece. The pipe or tubing that connects the outlet of a 
plumbing fixture to a trap. 

Testing Agency fHCD 1 & HCD 2J. See "Approved Testing 

Agency '\ 

Thermostatic (Temperature Control) Valve. A mixing 
valve that senses outlet temperature and compensates for fluc- 
tuations in incoming hot or cold water temperatures. 

Toilet [OSHPD ly 2, 3 & 4 J, A fixture within a toilet room 
which is used for defection or urination. 

Toilet Room [OSHPD 1, 2, 3 & 4], A room within or on the 
premises containing water closets, urinals, and other required 
facilities. 

Trap. A fitting or device so designed and constructed as to 
provide, when properly vented, a liquid seal that will prevent 
the back passage of air without materially affecting the flow 
of sewage or wastewater through it. 

Trap Arm. That portion of a fixture drain between a trap and 
the vent. 

Trap Primer. A device and system of piping that maintains 
a water seal in a remote trap. 

Trap Seal. The vertical distance between the crown weir and 
the top dip of the trap. 

Crown Weir (Trap Weir) -The lowest point in the 
cross-section of the horizontal waterway at the exit of the 
trap. 

Top Dip (of trap). The highest point in the internal 
cross- section of the trap at the lowest part of the bend 
(inverted siphon). By contrast, the bottom dip is the low- 
est point in the internal cross-section. 



36 



2010 CALIFORNIA PLUMBING CODE 



DEFINITIONS 



223.0 



■U- 



Unconfined Space. A room or space having a volume equal 
to not less than fifty (50) cubic feet per 1,000 Btu/h (1.4 
m^/293 W) of the aggregate input rating of all fuel-burning 
appliances installed in that space. Rooms communicating di- 
rectly with the space in which the appliances are installed, 
through openings not furnished with doors, are considered a 
part of the unconfmed space. 

Unsanitary. See Insanitary. 

I UFCfHCD 1 & HCD 2, DPHJ. ''UPC" is the latest edition 
of the Uniform Plumbing Code, published by the Interna- 
tional Association of Plumbing and Mechanical Officials. 



224.0 



-V 



Vacuum. Any pressure less than that exerted by the atmos- 
phere. 

Vacuum Breaker. See Backflow Preventer. 

Vacuum Relief Valve. A device that prevents excessive vac- 
uum in a pressure vessel. 

Vent. Any pipe provided to ventilate a plumbing system, to 
prevent trap siphonage and back-pressure, or to equalize the 
air pressure within the drainage system. 

Vent Pipe. See Vent. 

Vent Stack. The vertical vent pipe installed primarily for the 
purpose of providing circulation of air to and from any part of 
the drainage system. 

Vent System. A pipe or pipes installed to provide a flow of air 
to or from a drainage system or to provide a circulation of air 
within such system to protect trap seals from siphonage and 

back-pressure. 

Vented Flow Control Device. A device installed upstream 
from the hydromechanical grease interceptor having an ori- 
fice that controls the rate of flow through the interceptor, and 
an air intake (vent) downstream from the orifice, which al- 
lows air to be drawn into the flow stream. 

Vertical Pipe. Any pipe or fitting that is installed in a verti- 
cal position or that makes an angle of not more than 45 de- 
grees with the vertical. 



Water Hammer Arrester. A device designed to provide pro- 
tection against hydraulic shock in the building water supply 
system. 

Water Main (Street Main). A water supply pipe for public 
or community use. 

Water Supply System. The building supply pipe, the water- 
distributing pipes, and the necessary connecting pipes, fit- 
tings, control valves, backflow prevention devices, and all 
appurtenances carrying or supplying potable water in or ad- 
jacent to the building or premises. 

Welded Joint or Seam. Any joint or seam obtained by the 
joining of metal parts in the plastic molten state. 

Welder, Pipe. A person who specializes in the welding of 
pipes and holds a valid certificate of competency from a rec- 
ognized testing laboratory, based on the requirements of the 
ASME Boiler and Pressure Vessels code. Section IX. 

Wet Vent. A vent that also serves as a drain. 

Whirlpool Bathtub. A bathtub fixture equipped and fitted 
with a circulating piping system designed to accept, circulate, 
and discharge bathtub water upon each use. 



226.0 

No definitions. 



-X 



227.0 -Y- 

Yoke Vent. A pipe connecting upward from a soil or waste 
stack to a vent stack for the purpose of preventing pressure 
changes in the stacks. 



228.0 

No definitions. 



-Z- 



225.0 



-W- 



Wall-Hung Water Closet. A water closet installed in such a 
way that no part of the water closet touches the floor. 

Waste. See Liquid Waste and Industrial Waste. 

Waste Pipe. A pipe that conveys only liquid waste, free of 
fecal matter. 

Water Closet [HCD 1 & HCD 2]. "Water Closet" is a plumb- 
ing fixture (which may be used for both solids and liquids) in 
which the waste matter is removed by flushing with water 

Water-Conditioning or Treating Device. A device that con- 
ditions or treats a water supply so as to change its chemical 
content or remove suspended solids by filtration. 

Water-Distributing Pipe. In a building or premises, a pipe 
that conveys potable water from the building supply pipe to 
the plumbing fixtures and other water outlets. 



2010 CALIFORNIA PLUMBING CODE 



37 



38 201 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 3 - GENERAL REGULATIONS 



Adopting Agency 


BSC 


SFM 


HOD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


SS 


ss/cc 


1 


2 


3 


4 












Adopt Entire Chapter 














X 


X 




















Adopt Entire Chapter as 
amended (amended sections 
Hsted below) 


X 


X 


X 


X 










X 


X 


X 


X 












Adopt only those sections 
that are listed below 




































Chapter/Section 


301.2 






X 


X 




























301.2.1 






t 


t 




























301.2.1.1 






t 


t 




























301.2.1.2 






t 


t 




























301.5 






X 


X 




























303.0 Exception 






X 






























304.0 Exception 






X 






























311.9 


















X 


X 


X 


X 












311.10 


















X 




X 


X 












311.11 




X 
































311.12 


















X 


X 




X 












316.1.6 






X 


X 




























316.1.8 


















X 


X 


X 


X 












316.1.9 


















X 


X 


X 


X 












316.2.4 






X 


X 










X 


X 


X 


X 












320.0 


















X 


X 


X 


X 













The state agency does not adopt sections identified by the following symbol: t 



2010 CALIFORNIA PLUMBING CODE 



39 



40 2010 CALIFORNIA PLUMBING CODE 



CHAPTER 3 
GENERAL REGULATIONS 



301.0 Materials - Standards and Alternates. 

301.1 Minimum Standards. 

301.1.1 Approvals. All pipe, pipe fittings, traps, fixtures, 
material, and devices used in a plumbing system shall be 
listed or labeled (third-party certified) by a listing agency 
(accredited conformity assessment body) and shall con- 
form to approved applicable recognized standards refer- 
enced in this code, and shall be free from defects. Unless 
otherwise provided for in this code, all materials, fix- 
tures, or devices used or entering into the construction of 
plumbing systems, or parts thereof, shall be submitted to 
the Authority Having Jurisdiction for approval. 

301.1.2 Marking. Each length of pipe and each pipe fit- 
ting, trap, fixture, material, and device used in a plumb- 
ing system shall have cast, stamped, or indelibly marked 
on it the manufacturer's mark or name, which shall read- 
ily identify the manufacturer to the end user of the prod- 

I uct. When required by the approved standard that applies, 
the product shall be marked with the weight and the qual- 
ity of the product. Materials and devices used or entering 
into the construction of plumbing and drainage systems, 
or parts thereof, shall be marked and identified in a man- 
ner satisfactory to the Authority Having Jurisdiction. 
Such marking shall be done by the manufacturer. Field 
markings shall not be acceptable. 

301.1.3 Standards. Standards listed or referred to in this 
chapter or other chapters cover materials that will con- 
form to the requirements of this code, when used in ac- 
cordance with the limitations imposed in this or other 
chapters thereof and their listing. Where a standard cov- 
ers materials of various grades, weights, quality, or con- 
figurations, there may be only a portion of the listed 
standard that is applicable. Design and materials for spe- 
cial conditions or materials not provided for herein shall 
be permitted to be used only by special permission of the 
Authority Having Jurisdiction after the Authority Hav- 
ing Jurisdiction has been satisfied as to their adequacy. A 
list of accepted plumbing materials standards is included 
in Table 14-1. lAPMO Installation Standards are in- 
cluded in Appendix I for the convenience of the users of 
this code. They are not considered as a part of this code 
unless formally adopted as such by the Authority Having 
Jurisdiction. 

301.1.4 Existing Buildings. In existing buildings or 
premises in which plumbing installations are to be al- 
tered, repaired, or renovated, the Authority Having Ju- 
risdiction has discretionary powers to permit deviation 
from the provisions of this code, provided that such pro- 
posal to deviate is first submitted for proper determina- 
tion in order that health and safety requirements, as they 
pertain to plumbing, shall be observed. 



301.2 Alternate Materials and Methods of Construction 
Equivalency. Nothing in this code is intended to prevent the 
use of systems, methods, or devices of equivalent or superior 
quality, strength, fire resistance, effectiveness, durability, and 
safety over those prescribed by this code. Technical docu- 
mentation shall be submitted to the Authority Having Juris- 
diction to demonstrate equivalency. The Authority Having 
Jurisdiction shall have the authority to approve or disapprove I 
the system, method or device for the intended purpose. [HCD \ 
1 & HCD 2] (See Section L8. 7), 

However, the exercise of this discretionary approval by 
the Authority Having Jurisdiction shall have no effect beyond 
the jurisdictional boundaries of said Authority Having Juris- 
diction. Any alternate material or method of construction so 
approved shall not be considered as conforming to the re- 
quirements and/or intent of this code for any purpose other 
than that granted by the Authority Having Jurisdiction when 
the submitted data does not prove equivalency. 

301.2.1 Testing. The Authority Having Jurisdiction shall 
have the authority to require tests, as proof of equiva- 
lency. 

301.2.1.1 Tests shall be made in accordance with ap- 
proved or applicable standards, by an approved test- 1 
ing agency at the expense of the applicant. In the 
absence of such standards, the Authority Having Ju- 
risdiction shall have the authority to specify the test 
procedure. 

301.2.1.2 The Authority Having Jurisdiction shall 
have the authority to require tests to be made or re- 
peated if, at any time, there is reason to believe that 
any material or device no longer conforms to the re- 
quirements on which its approval was based. 

301.3 Flood Hazard Resistance. 

301.3.1 General. Plumbing systems shall be located 
above the design flood elevation. 

Exception: Plumbing systems are permitted to be located 
below the design flood elevation provided that the sys- 
tems are designed and installed to prevent water from en- 
tering or accumulating within their components and the 
systems are constructed to resist hydrostatic and hydro- 
dynamic loads and stresses, including the effects of buoy- 
ancy, during the occurrence of flooding to the design 
flood elevation. 

301.3.2 Flood Hazard Areas Subject to High- Velocity 
Wave Action. Plumbing systems in buildings located in 
flood hazard areas subject to high-velocity wave action 
shall meet the requirements of Section 301 .3. 1, and plumb- 
ing systems, pipes, and fixtures shall not be mounted on or 
penetrate through walls that are intended to breakaway 
under flood loads as required by the Building Code. 



2010 CALIFORNIA PLUMBING CODE 



41 



GENERAL REGULATIONS 



301.4 Alternative Engineered Design. 

301.4.1 Design Criteria. An alternative engineered de- 
sign shall conform to the intent of the provisions of this 
code and shall provide an equivalent level of quality, 
strength, effectiveness, fire resistance, durability, and 
safety. Material, equipment, or components shall be de- 
signed and installed in accordance with the manufac- 
turer's installation instructions. 

301.4.2 Permit Application. The registered professional 
engineer shall indicate on the design documents that the 
plumbing system, or parts thereof, is an alternative engi- 
neered design so that it is noted on the construction per- 
mit application. The permit and permanent permit 
records shall indicate that an alternative engineered de- 
sign was part of the approved installation. 

301.4.3 Technical Data. The registered professional en- 
gineer shall submit sufficient technical data to substanti- 
ate the proposed alternative engineered design and to 
prove that the performance meets the intent of this code. 

301.4.4 Design Documents. The registered professional 
engineer shall provide two (2) complete sets of signed 
and sealed design documents for the alternative engi- 
neered design for submittal to the Authority Having Ju- 
risdiction. The design documents shall include floor 
plans and a riser diagram of the work. Where appropri- 
ate, the design documents shall indicate the direction of 
flow, pipe sizes, grade of horizontal piping, loading, and 
location of fixtures and appliances. 

301.4.5 Design Approval. Any approval of an alterna- 
tive engineered design shall be at the discretion of the 
Authority Having Jurisdiction. The exercise of this dis- 
cretionary approval by the Authority Having Jurisdiction 
shall have no effect beyond the jurisdictional boundaries 
of said Authority Having Jurisdiction. Any alternative 
engineered design so approved shall not be considered 
as conforming to the requirements and/or intent of this 
code for any purpose other than that granted by the Au- 
thority Having Jurisdiction. 

301.4.6 Design Review. The Authority Having Jurisdic- 
tion shall have the authority to require testing of the al- 
ternative engineered design in accordance to Section 
301.2.1, including the authority to require an independ- 
ent review of the design documents by a registered pro- 
fessional engineer selected by the Authority Having 
Jurisdiction and at the expense of the applicant. 

301.4.7 Inspection and Testing. The alternative engi- 
neered design shall be tested and inspected in accordance 
with the submitted testing and inspection plan and the re- 
quirements of this code. 

30L5 One- and Two-Family Dwellings. [HCD 1 & HCD 2] 

The provisions contained in this code shall not apply to one 
and two-family dwelling private sewage disposal systems and 
minimum plumbing facilities when alternate facilities or in- 
stallations have been approved by the local health authority, 
provided that such alternative facilities or installations pro- 
vide substantially equivalent or greater protection to health 
and safety. 



302.0 Iron Pipe Size (IPS) Pipe. 

Iron, steel, brass, and copper pipe shall be standard- weight 
iron pipe size (IPS) pipe. 

303.0 Disposal of Liquid Waste. 

It shall be unlawful for any person to cause, suffer, or permit 
the disposal of sewage, human excrement, or other liquid 
wastes, in any place or manner, except through and by means 
of an approved drainage system, installed and maintained in 
accordance with the provisions of this code. 

Exception: [HCD 1] Limited-density owner-built rural 
dwellings. A water closet shall not be required when an al- 
ternate system is provided and has been approved by the local 
health official. Where an alternative to the water closet is in- 
stalled, a system for the disposal or treatment ofgraywater 
shall be provided to the dwelling. Graywater systems shall be 
designed according to water availability, use and discharge. 
The design, use and maintenance standards of such systems 
shall be the prerogative of the local health official 

304.0 Connections to Plumbing System Required. 

Plumbing fixtures, drains, appurtenances, and appliances, 
used to receive or discharge liquid wastes or sewage, shall be 
connected properly to the drainage system of the building or 
premises, in accordance with the requirements of this code. 

Exception: [HCD 1] Limited-density owner-built rural 
dwellings. Where conventional plumbing, in all or in part, is 
installed within the structure, it shall be installed in accor- 
dance with the provisions of this code. Alternative materials 
and methods shall be permitted provided that the design com- 
plies with the intent of the code, and that such alternatives 
shall perform to protect health and safety for the intended 
purpose. 

305.0 Sewers Required. 

305.1 Every building in which plumbing fixtures are installed 
shall have a connection to a public or private sewer except as 
provided in Section 305.2. 

305.2 When a public sewer is not available for use, drainage 
piping from buildings and premises shall be connected to an 
approved private sewage disposal system. 

305.3 In cities and/or counties where the installation of build- 
ing sewers is under the jurisdiction of a department other than 
the Authority Having Jurisdiction, the provisions of this code 
relating to building sewers need not apply. 

306.0 Damage to Drainage System or Public Sewer. 

306.1 It shall be unlawful for any person to deposit, by any 
means whatsoever, into any plumbing fixture, floor drain, in- 
terceptor, sump, receptor, or device, which is connected to 
any drainage system, public sewer, private sewer, septic tank, 
or cesspool, any ashes; cinders; solids; rags; inflammable, 
poisonous, or explosive liquids or gases; oils; grease; or any 
other thing whatsoever that would, or could, cause damage 
to the drainage system or public sewer. 



42 



2010 CALIFORNIA PLUMBING CODE 



GENERAL REGULATIONS 



306.2 Roofs, inner courts, vent shafts, light wells, or similar 
areas having rainwater drain, shall discharge to the outside of 
the building or to the gutter and shall not be connected to the 
sanitary drainage system unless first approved by the Au- 
thority Having Jurisdiction. 

307.0 Industrial Wastes. 

307.1 Wastes detrimental to the public sewer system or detri- 
mental to the functioning of the sewage treatment plant shall 
be treated and disposed of as found necessary and directed 
by the Authority Having Jurisdiction. 

307.2 Sewage or other waste from a plumbing system that 
may be deleterious to surface or subsurface waters shall not 
be discharged into the ground or into any waterway unless it 
has first been rendered safe by some acceptable form of treat- 
ment as required by the Authority Having Jurisdiction. 

308.0 Location. 

308.1 Except as otherwise provided in this code, no plumb- 
ing system, drainage system, building sewer, private sewage 
disposal system, or parts thereof shall be located in any lot 
other than the lot that is the site of the building, structure, or 
premises served by such facilities. 

308.2 No subdivision, sale, or transfer of ownership of exist- 
ing property shall be made in such manner that the area, clear- 
ance, and access requirements of this code are decreased. 

309.0 Improper Location. 

Piping, fixtures, or equipment shall not be so located as to in- 
terfere with the normal use thereof or with the normal opera- 
tion and use of windows, doors, or other required facilities. 

310.0 Workmanship. 

310.1 Design, construction, and workmanship shall be in con- 
formity with accepted engineering practices and shall be of 
such character as to secure the results sought to be obtained 
by this code. 

310.2 It is unlawful to conceal cracks, holes, or other imper- 
fections in materials by welding, brazing, or soldering or by 

I using therein or thereon any paint, wax, tar, solvent cement, 
other leak-sealing or repair agent. 

310.3 Burred ends of pipe and tubing shall be reamed to the 
full bore of the pipe or tube, and chips shall be removed. 

310.4 Installation Practices. Plumbing systems shall be in- 
stalled in a manner conforming to this code, applicable stan- 
dards, and the manufacturer's installation instructions. In 
instances where the code, applicable standards, or the manu- 
facturer's instructions conflict, the more stringent provisions 
shall prevail. 



except that a double hub sanitary tapped tee shall be permit- 
ted to be used on a vertical line as a fixture connection. 

311.2 No drainage or vent piping shall be drilled and tapped 
for the purpose of making connections thereto, and no cast- 
iron soil pipe shall be threaded. 

311.3 No waste connection shall be made to a closet bend or 
stub of a water closet or similar fixture. 

311.4 Except as hereinafter provided in Sections 908.0, 909.0, 
and 910.0, no vent pipe shall be used as a soil or waste pipe, 
nor shall any soil or waste pipe be used as a vent. Also, sin- 
gle-stack drainage and venting systems with unvented branch 
lines are prohibited. 

311.5 No fitting, fixture and piping connection, appliance, de- 
vice, or method of installation that obstructs or retards the 
flow of water, wastes, sewage, or air in the drainage or vent- 
ing systems, in an amount exceeding the normal frictional re- 
sistance to flow, shall be used unless it is indicated as 
acceptable in this code or is approved per Section 301.1 of 
this code. The enlargement of a three (3) inch (80 mm) closet 
bend or stub to four (4) inches (100 mm) shall not be consid- 
ered an obstruction. 

311.6 Except for necessary valves, where inter-membering or 
mixing of dissimilar metals occurs, the point of connection 
shall be confined to exposed or accessible locations. 

311.7 Valves, pipes, and fittings shall be installed in correct 
relationship to the direction of flow. 

311.8 Screwed Fittings. Screwed fittings shall be ABS, cast- 
iron, copper, copper alloy, malleable iron, PVC, steel, or other 
approved materials. Threads shall be tapped out of solid metal 
or molded in solid ABS or PVC. 

31L9 [OSHPD ly 2y 3 & 4] Drainage piping over operating 
and delivery rooms, nurseries, food preparation centers, 
food-serving facilities, food storage areas, and other sensi- 
tive areas shall be kept to a minimum and shall not he ex- 
posed. Special precautions shall be taken to protect these 
areas from possible leakage from necessary overhead 
drainage piping systems. Piping over switchboards, panel 
boards, and motor control centers are subject to restrictions 
of the California Electrical Code where applicable. 

311.10 f OSHPD ly3&4] Floor drains shall not be installed 
in operating and delivery rooms. Floor drains with self-prim- 
ing traps may be installed in cystoscopic rooms. 

311.11 fSFMJ For applications listed in Section I.ILO reg- 
ulated by the Office of the State Fire Marshal, plastic piping 
shall not be exposed as a portion of the interior room finish 
in a building or structure if the piping has aflame-spread rat- 
ing exceeding 75 when tested in accordance with ASTME 84- 
77a, ''Test for Surface Burning Characteristics of Building 
Materials. " 

311.12 f OSHPD 1,2 & 4] Services/Systems and Utilities. 

Refer to Section 1224.4.1, California Building Code, 



311.0 Prohibited Fittings and Practices. 

311.1 No double hub fitting, single or double tee branch, sin- 
gle or double tapped tee branch, side inlet quarter bend, run- 
ning thread, band, or saddle shall be used as a drainage fitting, 



312.0 Independent Systems. 

The drainage system of each new building and of new work 
installed in any existing building shall be separate and inde- 
pendent from that of any other building, and, when available, 



2010 CALIFORNIA PLUMBING CODE 



43 



GENERAL REGULATIONS 



every building shall have an independent connection with a 
public or private sewer. 

Exception: Where one (1) building stands in the rear of an- 
other building on an interior lot, and no private sewer is avail- 
able or can be constructed to the rear building through an 
adjoining court, yard, or driveway, the building drain from 
the front building shall be permitted to be extended to the rear 
building. 

313.0 Protection of Piping, Materials, and Structures. 

313.1 Piping passing under or through walls shall be pro- 
tected from breakage. Piping passing through or under cin- 
ders or other corrosive materials shall be protected from 
external corrosion in an approved manner. Approved provi- 
sions shall be made for expansion of hot water piping. Voids 
around piping passing through concrete floors on the ground 
shall be appropriately sealed. 

313.2 Piping in connection with a plumbing system shall be 
so installed that piping or connections will not be subject to 
undue strains or stresses, and provisions shall be made for ex- 
pansion, contraction, and structural settlement. No plumbing 
piping shall be directly embedded in concrete or masonry. No 
structural member shall be seriously weakened or impaired 
by cutting, notching, or otherwise, as defined in the Building 
Code. 

313.3 No building sewer or other drainage piping or part 
thereof, constructed of materials other than those approved 
for use under or within a building, shall be installed under or 
within two (2) feet (610 mm) of any building or structure, or 
less than one (1) foot (305 mm) below the surface of the 
ground. 

313.4 Piping subject to corrosion, erosion, or mechanical 
damage shall be protected in an approved manner. 

313.5 Protectively Coated Pipe. Protectively coated pipe 
shall be inspected and tested, and any visible void, damage, 
or imperfection to the pipe coating shall be repaired to com- 
ply with Section 313.0. 

313.6 No water, soil, or waste pipe shall be installed or per- 
mitted outside of a building or in an exterior wall unless, 
where necessary, adequate provision is made to protect such 
pipe from freezing. 

313.7 Piping penetrations of fire-resistance-rated walls, par- 
titions, floors, floor/ceiling assemblies, roof/ceiling assem- 
blies, or shaft enclosures shall be protected in accordance with 
the requirements of the Building Code. 

313.8 Waterproofing of Openings. Joints at the roof around 
pipes, ducts, or other appurtenances shall be made water-tight 
by the use of lead, copper, galvanized iron, or other approved 
flashings or flashing material. Exterior wall openings shall be 
made water-tight. Counterflashing shall not restrict the re- 
quired internal cross-sectional area of the vent. 

313.9 Plastic and copper piping penetrating a framing mem- 
bers to within one (1) inch (25.4 mm) of the exposed framing 
shall be protected by steel nail plates not less than No. 18 
gauge (0.0478 inches) (1.2 mm) in thickness. The steel nail 



plate shall extend along the framing member not less than one 
and one-half (114) inches (38 mm) beyond the outside diam- 
eter of the pipe or tubing. 

Exception: See Section 1211.3.4. 

313.10 Sleeves. 

313.10.1 Sleeves shall be provided to protect piping 
through concrete and masonry walls and concrete floors. 

Exception: Sleeves shall not be required where open- 
ings are drilled or bored. 

313.10.2 Piping through concrete or masonry walls shall 
not be subject to any load from building construction. 

313.10.3 In exterior walls, annular space between sleeves 
and pipes shall be sealed and made water-tight, as ap- 
proved by the Authority Having Jurisdiction. Any pene- 
tration through fire-resistive construction shall be in 
accordance with Section 313.7. 

313.10.4 Any pipe sleeve through a firewall shall have 
the space around the pipe completely sealed with an ap- 
proved fire-resistive material in accordance with other 
codes. 

313.11 Any structural member weakened or impaired by cut- 
ting, notching, or otherwise shall be reinforced, repaired, or 
replaced so as to be left in a safe structural condition in ac- 
cordance with the requirements of the Building Code. 

313.12 Ratproofing. 

313.12.1 Strainer plates on drain inlets shall be designed 
and installed so that no opening is exceeding one-half 
(Vi) inch (12.7 mm) in the least dimension. 

313.12.2 Meter boxes shall be constructed in such a man- 
ner that rats cannot enter a building by following the 
service pipes from the box into the building. 

313.12.3 In or on buildings where openings have been 
made in walls, floors, or ceilings for the passage of pipes, 
such openings shall be closed and protected by the in- 
stallation of approved metal collars securely fastened to 
the adjoining structure. 

313.12.4 Tub waste openings in framed construction to 
crawl spaces at or below the first floor shall be protected 
by the installation of approved metal collars or metal 
screen securely fastened to the adjoining structure with 
no opening exceeding one-half (Vi) inch (12.7 mm) in the 
least dimension. 

314.0 Hangers and Supports. 

314.1 Suspended piping shall be supported at intervals not to 
exceed those shown in Table 3-2. 

314.2 Piping shall be supported in such a manner as to main- 
tain its alignment and prevent sagging. 

314.3 Piping in the ground shall be laid on a firm bed for its 
entire length; where other support is otherwise provided, it 
shall be approved per Section 301.0 of this code. 

314.4 Hangers and anchors shall be of sufficient strength to 
support the weight of the pipe and its contents. Piping shall be 
isolated from incompatible materials. 



44 



2010 CALIFORNIA PLUMBING CODE 



GENERAL REGULATIONS 



314.5 Piping, fixtures, appliances, and appurtenances shall be 
adequately supported in accordance with this code, the man- 
ufacturer's installation instructions, and as required by the 
Authority Having Jurisdiction. 

314.6 Hanger rod sizes shall be no smaller than those shown 
in Table 3-1. 

314.7 Gas piping shall be supported by metal straps or hooks 
at intei*vals not to exceed those shown in Table 12-3. 



TABLE 3-1 
HANGER ROD SIZES 



PIPE AND TUBE SIZE 


ROD SIZE 


(inches) 


mm 


(Inches) 


mm 


'/2-4 


15-100 


V% 


9.5 


6-8 


150-200 


Vi 


12.7 


10-12 


250-300 


v% 


15.9 



315.0 Trenching, Excavation, and BackfilL 

315.1 Trenches deeper than the footing of any building or 
structure and paralleling the same shall be not less than 45 
degrees (0.79 rad) therefrom, or as approved per Section 
301.0 of this code. 

315.2 Tunneling and driving shall be permitted to be done in 
yards, courts, or driveways of any building site. Where suffi- 
cient depth is available to permit, tunnels shall be permitted 
to be used between open-cut trenches. Tunnels shall have a 
clear height of two (2) feet (610 mm) above the pipe and shall 
be limited in length to one-half Q/i) the depth of the trench, 
with a maximum length of eight (8) feet (2438 mm). When 
pipes are driven, the drive pipe shall be not less than one (1) 
size larger than the pipe to be laid. 

315.3 Open Trenches. Excavations required to be made for 
the installation of a building drainage system or any part 
thereof, within the walls of a building, shall be open trench 
work and shall be kept open until the piping has been in- 
spected, tested, and accepted. 

315.4 Excavations shall be completely backfilled as soon 
after inspection as practicable. Adequate precaution shall be 
taken to ensure proper compactness of backfill around piping 
without damage to such piping. Trenches shall be backfilled 
in thin layers to twelve (12) inches (305 mm) above the top 
of the piping with clean earth, which shall not contain stones, 
boulders, cinderfill, frozen earth, construction debris, or other 
materials that would damage or break the piping or cause cor- 
rosive action. Mechanical devices such as bulldozers, graders, 
etc., shall be permitted to then be used to complete backfill to 
grade. Fill shall be properly compacted. Suitable precautions 
shall be taken to ensure permanent stability for pipe laid in 
filled or made ground. 

316.0 Joints and Connections. 

316.1 Types of Joints. 

316.1.1 Threaded Joints. Threads on iron pipe size 
(IPS) pipe and fittings shall be standard taper pipe 
threads in accordance with standards Hsted in Table 14- 
1. Threads on tubing shall be approved types. Threads 



on plastic pipe shall be factory cut or molded. Threaded 
plastic pipe shall be Schedule 80 minimum wall thick- 
ness. Tubing threads shall conform to fine tubing thread 
standards. When a pipe joint material is used, it shall be 
applied only on male threads, and such materials shall be 
approved types, insoluble in water and nontoxic. 
Cleanout plugs and caps shall be lubricated with water- 
insoluble, nonhardening material or tape. Thread tape or 
thread lubricants and sealants specifically intended for 
use with plastics shall be used on plastic threads. Con- 
ventional pipe thread compounds, putty, linseed-oil- 
based products, and unknown lubricants and sealants 
shall not be used on plastic threads. 

316.1.2 Wiped Joints. Joints in lead pipe or fittings or 
between lead pipe or fittings and brass or copper pipe, 
ferrules, solder nipples, or traps shall be full-wiped 
joints. Wiped joints shall have an exposed surface on 
each side of a joint not less than three-fourths QA) inch 
(19.1 mm) and not less than as thick as the material being 
joined. Wall or floor flange lead-wiped joints shall be 
made by using a lead ring or flange placed behind the 
joint at the wall or floor. Joints between lead pipe and 
cast-iron, steel, or wrought iron shall be made by means 
of a caulking ferrule or soldering nipple. 

316.1.3 Soldered Joints. Joints in copper tubing shall be 
made by the appropriate use of approved copper or cop- 
per alloy fittings. Surfaces to be joined by soldering shall 
be cleaned bright by manual or mechanical means. 

The joints shall be properly fluxed with an approved- 
type flux and made up witii approved solder. Solder and 
fluxes shall be manufactured to approved standards. Sol- 
ders and fluxes with a lead content that exceeds two-tenths 
(0.02) of one (1) percent shall be prohibited in piping sys- 
tems used to convey potable water. 

316.1.4 Flared Joints. Flared joints for soft copper tubing 
shall be made with fittings meeting approved standards. 
The tubing shall be reamed to the full inside diameter, re- 
sized to round, and expanded with a proper flaring tool. 

316.1.5 Flexible Compression Factory-Fabricated 
Joints. Where pipe is joined by means of flexible com- 
pression joints, such joints shall conform to approved 
standards and shall not be considered as slip joints. 

316.1.6 Solvent Cement Plastic Pipe Joints. Plastic pipe 
and fittings designed to be joined by solvent cementing shall 
comply with applicable standards referenced in Table 14-1 . | 

ABS pipe and fittings shall be cleaned and then 
joined with solvent cement(s). 

CPVC pipe and fittings shall be cleaned and then 
joined with listed primer(s) and solvent cement(s). 

Exceptions: 

(1) Listed solvent cements that do not require the use of 
primer shall be permitted for use with CPVC pipe 
and fittings, manufactured in accordance with 
ASTM D 2846, Standard for Chlorinated Poly Plas- 
tic Hot- and Cold-Water Distribution Systems, one- 
half (Vz) inch (15 mm) through two (2) inches (50 
mm) in diameter. 



2010 CALIFORNIA PLUMBING CODE 



45 



GENERAL REGULATIONS 



(2) [HCD 1 & HCD 2] Low VOC One-Step Cement that 
does not require the use of primer shall be utilized with 
CPVCpipe and fittings, manufactured in accordance 
withASTMD 2846, Standard for Chlorinated Poly 
Plastic Hot- and Cold-Water Distribution Systems, V2 
inch through 2 inches in diameter 

PVC pipe and fittings shall be cleaned and joined with 
primer(s) and solvent cement(s). 

A solvent cement transition joint between ABS and 
PVC building drain and building sewer shall be made using 
a listed transition solvent cement. 

[HCD 1 & HCD 2] Plastic pipe and fittings joined with 
solvent cement shall utilize Low VOC primer (s), if a primer 
is required, and Low VOC solvent cement(s) as defined in 
II Section 2 14.0. 

316.1.7 Brazing and Welding. Brazing and welding 
shall conform to the applicable standard(s) in Table 14- 
1 . Only brazing alloys having a liquid temperature above 
lOOOT (538°C) shall be used. Brazing on medical gas 
systems shall be performed by certified installers meet- 
ing the requirements of ASME Boiler and Pressure Ves- 
sel Code, Section IX, Welding and Brazing 
Qualifications, or AWS B2.2, Standard for Brazing Pro- 
cedure and Performance Qualifications. 

316.1.8 [Not permitted for OSHPD 1, 2, 3 & 4] Pres- 
sure-Locli-Type Connection. This is a mechanical con- 
nection that depends on an internal retention device to 
prevent pipe or tubing separation. Connection is made 
by inserting the pipe or tubing into the fitting to a pre- 
scribed depth. 

316.1.9 [Not permitted for OSHPD 1,2,3& 4] Pressed 
Fitting. This is a mechanical connection for joining cop- 
per tubing that uses a crimping tool to affix the 0-ring 
seal copper or copper alloy fitting to the tubing. The tub- 
ing shall be inserted into the fitting, and the crimp shall 
be made using the tool recommended by the manufac- 
turer. 

316.1.10 Push-fit Fitting. A mechanical fitting where 
the connection is assembled by pushing the tube or pipe 
into the fitting and is sealed with an "O" ring. 

316.1.11 Heat Fusion Weld Joints. This type of joint is 
used in some thermoplastic systems to connect pipe to 
fittings or pipe lengths directly to one another (butt-fii- 
sion). This method of joining pipe to fittings includes 
socket- fusion, electro- fusion, and saddle-fusion. This 
method of welding involves the application of heat and 
pressure to the components, allowing them to fuse to- 
gether forming a bond between the pipe and fitting. 

316.2 Special Joints. 

316.2.1 Copper Tubing to Screw Pipe Joints. Joints fi*om 
copper tubing to threaded pipe shall be made by the use of 
brass adapter fittings. The joint between the copper tubing 
and the fitting shall be a soldered brazed flared, or pressed 
joint and the connection between the threaded pipe and the 
fitting shall be made with a standard pipe size screw joint. 
Solder shall conform to the requirements of Section 
316. 1.3. Brazed joints shall conform to the requirements of 



Section 3 16. 1 .7. Flared joints shall conform to the require- 
ments of Section 316.1.4. Pressed joints shall conform to 
the requirements of Section 316.1 .9. 

316.2.2 Unions. Approved unions shall be permitted to 
be used in drainage piping when accessibly located in the 
trap seal or between a fixture and its trap in the vent sys- 
tem, except underground or in wet vents, at any point in 
the water supply system, and in gas piping as permitted 
by Section 1211.3.2(4). 

316.2.3 Plastic Pipe to Other Materials. When con- 
necting plastic pipe to other types of piping, only ap- 
proved types of fittings and adapters designed for the 
specific transition intended shall be used. 

316.2.4 Dielectric Unions. [HCD 1 & HCD 2, OSHPD 

1, 2y 3 & 4] Dielectric unions shall be used at all points 
of connection where there is a dissimilarity of metals. 

316.3 Flanged Fixture Connections. 

316.3.1 Fixture connections between drainage pipes and 
water closets, floor outlet service sinks and urinals shall 
be made by means of approved brass, hard lead, ABS, 
PVC, or iron flanges caulked, soldered, solvent ce- 
mented; rubber compression gaskets; or screwed to the 
drainage pipe. The connection shall be bolted with an ap- 
proved gasket, washer, or setting compound between the 
fixture and the connection. The bottom of the flange shall 
be set on an approved firm base. 

316.3.2 Closet bends or stubs shall be cut off so as to 
present a smooth surface even with the top of the closet 
ring before rough inspection is called. 

316.3.3 Wall-mounted water closet fixtures shall be se- 
curely bolted to an approved carrier fitting. The con- 
necting pipe between the carrier fitting and the fixture 
shall be an approved material and designed to accom- 
modate an adequately sized gasket. Gasket material shall 
be neoprene, felt, or similar approved types. 

316.4 Prohibited Joints and Connections. 

316.4.1 Drainage System. Any fitting or connection that 
has an enlargement, chamber, or recess with a ledge, 
shoulder, or reduction of pipe area that offers an ob- 
struction to flow through the drain shall be prohibited. 

316.4.2 No fitting or connection that offers abnormal ob- 
struction to flow shall be used. The enlargement of a 
three (3) inch (80 mm) closet bend or stub to four (4) 
inches (100 mm) shall not be considered an obstruction. 

317.0 Increasers and Reducers. 

Where different sizes of pipes and fittings are to be connected, 
the proper size increasers or reducers or reducing fittings shall 
be used between the two sizes. Brass or cast-iron body 
cleanouts shall not be used as a reducer or adapter from cast- 
iron drainage pipe to iron pipe size (IPS) pipe. 

318.0 Food-Handling Establishments. 

Food or drink shall not be stored, prepared, or displayed be- 
neath soil or drain pipes, unless those areas are protected 



46 



2010 CALIFORNIA PLUMBING CODE 



GENERAL REGULATIONS 



against leakage or condensation from such pipes reaching the 
food or drink as described below. Where building design re- 
quires that soil or drain pipes be located over such areas, the 
installation shall be made with the least possible number of 
joints and shall be installed so as to connect to the nearest ad- 
equately sized vertical stack with the provisions as follows: 

318.1 Openings through floors over such areas shall be sealed 
water-tight to the floor construction. 

318.2 Floor and shower drains installed above such areas 
shall be equipped with integral seepage pans. 

318.3 Soil or drain pipes shall be of an approved material as 
listed in Table 14-1 and Section 701.0. Materials shall con- 
form to established standards. Cleanouts shall be extended 
through the floor construction above. 

318.4 Piping subject to operation at temperatures that will 
form condensation on the exterior of the pipe shall be ther- 
mally insulated. 

318.5 Where pipes are installed in ceilings above such areas, 
the ceiling shall be of the removable type, or shall be pro- 
vided with access panels in order to form a ready access for 
inspection of piping. 

319.0 Test Gauges. 

Tests required by this code, which are performed utilizing dial 
gauges, shall be limited to gauges having the following pres- 
sure graduations or incrementations. 

319.1 Required pressure tests often (10) psi (69 kPa) or less 
shall be performed with gauges of one-tenth of a pound (0,10) 
(0.7 kPa) incrementation or less. 

319.2 Required pressure tests exceeding ten (10) pounds (69 
I kPa) but less than or equal to one-hundred (100) psi (689 kPa) 

shall be performed with gauges of one (1) psi (6.9 kPa) in- 
crementation or less. 

319.3 Required pressure tests exceeding one-hundred (100) 
psi (689 kPa) shall be performed with gauges incremented for 
two (2) percent or less of the required test pressure. 

319.4 Test gauges shall have a pressure range not exceeding 
twice the test pressure applied. 

320.0 [Not permitted for OSHPD 1,2, 3 & 4] Medical Gas 
and Vacuum Systems. 

Such piping shall be installed, tested, and verified in compli- 
ance with the applicable standards referenced in Table 14-1 
and the requirements of Chapter 13. The Authority Having 
Jurisdiction shall require evidence of the competency of the 
installers and verifiers. 



2010 CALIFORNIA PLUMBING CODE 47 



GENERAL REGULATIONS 



TABLE 3-2 
HANGERS AND SUPPORT 



MATERIALS 


TYPES OF JOINTS 


HORIZONTAL 


VERTICAL 


Cast 


Lead and Oakum 


5 feet (1524 mm), except 10 feet (3048 
mm) where 10 foot lengths (3048 mm) 
are installed^'^'^ 


Base and each floor not to exceed 
15 feet (4572 mm) 


Compression Gasket 


Every other joint, unless over 4 feet 
(1219 mm), then support each joint' '^-^ 


Base and each floor a maximum of 
15 feet (4572 mm) 


Cast-Iron Hubless 


Shielded Coupling 


Every other joint, unless over 4 feet 
(1219 mm), then support each joint '-^'^-^ 


Base and each floor a maximum of 
15 feet (4572 mm) 


Copper Tube and Pipe 


Soldered or Brazed 


1 '/2 inches (40 mm) and smaller, 6 feet 
(1829 mm), 2 inches (50 mm) and 
larger, 10 feet (3048 mm) 


Each floor, a maximum of 10 feet 
(3048 mmy 


Steel and Brass Pipe for Water or 
DWV 


Threaded or Welded 


y4 inch (20 mm) and smaller, 10 feet 
(3048 mm), 1 inch (25 mm) and larger, 
12 feet (3658 mm) 


Every other floor, a maximum of 25 
feet (7620 mm)^ 


Steel, Brass, and Tinned Copper 
Pipe for Gas 


Threaded or Welded 


Vi inch (15 mm), 6 feet (1829 mm), V^ 
inch (20 mm) and 1 inch (25 mm), 8 
feet (2438 mm), 1 Va inch (32 mm) and 
larger, 10 feet (3048 mm) 


Vi inch (15 mm), 6 feet (1829 mm), 
Va inch (20 mm) and 1 inch (25 
mm), 8 feet (2438 mm), VA (32 
mm) every floor level 


Schedule 40 PVC and ABS 
DWV 


Solvent Cemented 


All sizes, 4 feet (1219 mm). Allow for 
expansion every 30 feet (9144 mm).^'^ 


Base and each floor. Provide mid- 
story guides. Provide for expansion 
every 30 feet (9144 nmi).6 


CPVC 


Solvent Cemented 


1 inch (25 mm) and smaller, 3 feet 
(914 mm), 1 Va inch (32 mm) and 
larger, 4 feet (1219 mm) 


Base and each floor. Provide mid- 
story guides.^ 


Lead 


Wiped or Burned 


Continuous Support 


A maximum of 4 feet (1219 mm) 


Copper 


Mechanical 


In accordance with standards acceptable to the Authority Having Jurisdiction 


Steel and Brass 


Mechanical 


In accordance with standards acceptable to the Authority Having Jurisdiction 


PEX 


Metal Insert and Metal 
Compression 


32 inches (813 mm) 


Base and each floor. 
Provide mid-story guides. 


PEX-AL-PEX 


Metal Insert and Metal 
Compression 


Vi inch (15 mm) "k All sizes 
Va inch (20 mm) V 98 inches 
1 inch (25 mm) J (2489 mm) 


Base and each floor. 
Provide mid-story guides. 


PE-AL-PE 


Metal Insert and Metal 
Compression 


Vi inch (15 mm) "^ All sizes 
Va inch (20 mm) V 98 inches 
1 inch (25 mm) J (2489 mm) 


Base and each floor. 
Provide mid-story guides. 


Polypropylene (PP) 


Fusion weld (socket, butt, 
saddle, electroftision), 
threaded (metal threads 
only), or mechanical 


1 inch (25 mm) and smaller, 32 inches 
(813 mm); \Va inches (32 mm) and 
larger, 4 feet (1219 mm) 


Base and each floor. 
Provide mid-story guides. 



Support adjacent to joint, a maximum of eighteen (18) inches (457 mm). 

Brace at a maximum of forty (40) feet (12 192 mm) intervals to prevent horizontal movement. 

Support at each horizontal branch connection. 

Hangers shall not be placed on the coupling. 

Vertical water lines shall be permitted to be supported in accordance with recognized engineering principles with regard to expansion and contraction, 

when first approved by the Authority Having Jurisdiction. 

See the appropriate lAPMO Installation Standard for expansion and other special requirements. 



48 



2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 4 - PLUMBING FIXTURES AND FIXTURE FITTINGS 



Adopting Agency 


BSC 


SFM 


HOD 


DBA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


ss 


ss/cc 


1 


2 


3 


4 












Adopt Entire Chapter 




































Adopt Entire Chapter as 
amended (amended sections 
listed below) 


X 




X 


X 






X 


X 


X 


X 


X 


X 




X 


X 




X 


Adopt only those sections 
that are listed below 










X 


X 














X 










Chapter/Section 


Note Under Title 












X 
























402.1 & subsections 






X 


X 




























402.2 & subsections 






X 


X 




























402.3 & subsections 






X 


X 




























402.3.4 


















X 


X 


X 


X 












406.5 






X 


X 




























406.5.1 




























X 








407.6 










X 


























411.6 Exception 










X 


























411.7 Exceptions 3 










X 


























412.1 


















X 


X 


X 


X 












412.1.1 












X 
























412.3 






t 


t 




























412.3.1 


















X 


X 


X 


X 












412.5 






t 


t 




























412.6 






t 


t 




























412.7 


































X 


412.8 


































X 


412.9 




























X 








412.10 




























X 


X 






413.0 










X 


























Table 4-1 


X 




X 


X 


X 




X 


X 


X 


X 


X 


X 










X 


Table A 


X 












X 


X 




















Table 4-1 Footnote 18 


X 




X 


X 




X 


X 


X 


X 


X 


X 


X 












Table 4-2 


X 
















X 


X 


X 


X 












Table 4-3 


X 




























X 




Table 4-4 


X 


























X 









The state agency does not adopt sections identified by the following symbol: t 



2010 CALIFORNIA PLUMBING CODE 



49 



50 2010 CALIFORNIA PLUMBING CODE 



CHAPTER 4 
PLUMBING FIXTURES AND FIXTURE FITTINGS 

Note: In addition the requirements of this chapter, which provide access to, or egress from, buildings or facilities where accessibil- 
ity is required for applications listed in Section 109, of the California Building Code, regulated by the Division of the State Archi- 
tect-Access Compliance shall also comply with Chapter 11 A for public housing and Chapter 1 IB for public accommodations under 
authority cited by Gov Code §4450 and in reference cited by Gov Code §4450 through 4461, 12955. 1 andH&SC §18949, 1, 19952 
through 19959, 



401.0 Materials - General Requirements. 

401.1 Quality of Fixtures. Plumbing fixtures shall be con- 
structed of dense, durable, non-absorbent materials and shall 
have smooth, impervious surfaces, free from unnecessary 
concealed fouling surfaces. Except as permitted elsewhere in 
this code, fixtures shall conform in quality and design to na- 
tionally recognized applicable standards included in Table 14- 
L 

401.2 Lead. Sheet lead shall be not less than the following: 

For safe pans not less than four (4) pounds per square foot 
(19.5 kg/m^) or one-sixteenth (Me) of an inch (1.6 mm) 
thick (See Table 14-1). 

401.3 Plumbing fixture fittings covered under the scope of 
NSF 61, Standard for Drinking Water System Components, 
shall comply with the requirements of NSF 61, Standard for 
Drinking Water System Components. 

402.0 Water-Conserving Fixtures and Fittings. 

402.1 Flush volumes for low-consumption and water-saver 
water closets and urinals shall be in accordance with appli- 
cable standards referenced in Table \4-l. fHCD 1 & HCD 2] 

Flow rates for shower heads and faucets shall meet the re- 
quirements of this section and applicable standards refer- 
enced in Table 14-1. 

402,1.1 Shower Heads [HCD 1 & HCD 2] Shower 
heads shall be designed and installed so that they will 
not exceed a water supply flow rate of 2.5 gallons (9.4 
liters) per minute measured at 80 psL 

402.L2 Faucets [HCD 1 & HCD 2] Faucets at kitchens, 
lavatories, wetbars, laundry sinks, or other similar use 
fixtures shall be designed and manufactured so that they 
will not exceed a water supply flow rate of 2.2 gallons 
(8.3 liters) per minute measured at 60 psi. 

402.2 Water Closets. Water closets, either flush tank, 
flushometer tank, or flushometer valve operated, shall have an 
average consumption of a maximum of 1 .6 gallons (6. 1 liters) 
of water per flush. 

402.2.1 Water Closets after January 1, 1994 [HCD 1 & 

HCD 2] Water closets, either flush tank, flushometer 
tank, or flushometer valve operated sold or installed 
after January 1, 1994, shall use no more than an average 
of 1.6 gallons (6.1 liters) of water per flush. See Health 
and Safety Code Section 17921.3 

402.2.2 Water Closets on or after July 1, 2011 [HCD 1 

& HCD 2] Water closets, either flush tank, flushometer 
I tank, or flushometer valve operated installed on or after 



July 1, 2011, shall have an effective flush volume in com- 
pliance with the following: 

(1) Single Flush Toilets -The effective flush volume 
shall not exceed 1.28 gallons (4.8 liters) when tested 
in accordance with ASME A112.19.2, Standard for 
Vitreous China Plumbing Fixtures and Hydraulic Fix- 
tures Requirements for Water Closets and Urinals. 

(2) Dual Flush Toilets - The effective flush volume shall 
not exceed 1.28 gallons (4.8 liters) when tested in ac- 
cordance with ASME All 2. 19.2, Standard for Vitreous 
China Plumbing Fixtures and Hydraulic Fixtures Re- 
quirements for Water Closets and Urinals, and ASME 
All 2. 19. 14, Standard for Six-Liter Water Closets 
Equipped with a Dual Flushing Device. 

402.2.2.1 Performance [HCD 1 & HCD 2] Water 
closets installed on or after July 2, 2011, shall meet 
or exceed the minimum performance criteria devel- 
oped for certification of high-efficiency toilets under 
the WaterSense program sponsored by the US. En- 
vironmental Protection Agency (EPA). 

402.2.2.2 Availability [HCD 1 & HCD 2] Between 
July 1, 2011, and January 1, 2014, the requirements 
of Section 402.2.2 may be temporarily suspended on 
a case by case basis by action of the enforcing 
agency should such agency determine that an insuf- 
ficient number of water closets are available. 

402.3 Urinals. Urinals shall have an average water con- 
sumption of a maximum of 1 gallon (3.8 liters) of water per 
flush. 

402.3.1 Urinals after January 1, 1994 [HCD 1 & HCD 

2] Urinals and associated flushometer valves sold or in- 
stalled after January 1, 1994, shall use no more than an 
average of one gallon (3.8 liters) per flush. See Health 
and Safety Code Section 1 7921.3 

402.3.2 Urinals on or after July 1, 2011 [HCD 1 & 

HCD 2] Urinals and associated flushometer valves sold 
or installed on or after July 1, 2011, shall use no more 
than 0.5 gallons (1.9 liters) per flush and meet perform- 
ance criteria as established in ASME A112.19.2, Stan- 
dard for Vitreous China Plumbing Fixtures and Hydraulic 
Fixtures Requirements for Water Closets and Urinals. 

402.3.3 Nonwater Supplied Urinals (Waterless Urinals) 

[HCD 1 & HCD 2] Waterless urinals sold or installed 
in this state shall comply with all of the following re- 
quirements: 



2010 CALIFORNIA PLUMBING CODE 



51 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



(1) Meet performance, testing, and labeling requirements 
established by ASMEAlll 19. 19-2006, Standard for 
Vitreous China Nonwater Urinals, for vitreous china 
non-water supplied urinals. 

(2) Be listed by an ANSI accredited third-party certifi- 
cation agency to ASME All 2. 19. 19-2006, Standard 
for Vitreous China Nonwater Urinals. 

(3) Follow cleaning and maintenance procedures es- 
tablished by the manufacturer 

(4) Conform to reference standards in Table 14-1 for 
non-vitreous ceramic or plastic urinal fixtures. 

(5) Provide water distribution and fixture supply pip- 
ing, sized as required elsewhere in this code, 
roughed-in immediately adjacent to each waterless 
urinal fixture installed. 

For additional information, see Health and Safety Code 
Section 17921.4. 

402.3.4 Nonwater Urinals. [Not adopted by OSHPD 1, 

2, 3, and 4] Nonwater urinals shall be listed and comply 
with the applicable standards referenced in Table 14-1. 
Nonwater urinals shall have a barrier liquid sealant to 
maintain a trap seal. Nonwater urinals shall permit the 
uninhibited flow of waste through the urinal to the sani- 
tary drainage system. Nonwater urinals shall be cleaned 
and maintained in accordance with the manufacturer's 
instructions after installation. Where nonwater urinals are 
installed they shall have a water distribution line rough- 
in to the urinal location to allow for the installation of an 
approved backflow prevention device in the event of a 
retrofit. 

402.4 Metered Faucets. Self-closing or self-closing metering 
faucets shall be installed on lavatories intended to serve the 
transient public, such as those in, but not limited to, service 
stations, train stations, airports, restaurants, and convention 
halls. Metered faucets shall deliver a maximum of 0.26 gal- 
lons (1.0 liter) of water per use. 

402.5 Emergency Safety Showers. Emergency safety show- 
ers shall not be limited in their water supply flow rates. 

402.6 Installation. Water-conserving fixtures shall be in- 
stalled in strict accordance with the manufacturer's instruc- 
tions to maintain their rated performance. 

403.0 Overflows. 

When any fixture is provided with an overflow, the waste 
shall be so arranged that the standing water in the fixture can- 
not rise in the overflow when the stopper is closed or remain 
in the overflow when the fixture is empty. The overflow pipe 
from a fixture shall be connected on the house or inlet side of 
the fixture trap, except that overflow on flush tanks shall be 
permitted to discharge into the water closets or urinals served 
by them, but it shall be unlawful to connect such overflows 
with any other part of the drainage system. 

404.0 Strainers and Connections. 

404.1 Strainers. Plumbing fixtures, other than water closets 
and urinals, shall be equipped with approved strainers having 



an approved waterway area. Strainers serving shower drains 
shall have a waterway equivalent to the area of the tailpiece. 

404.2 Connections. Fixtures having concealed slip joint con- 
nections shall be provided with an access panel or utility 
space not less than twelve (12) inches (305 mm) in its least di- 
mension and so arranged without obstructions as to make 
such connections accessible for inspection and repair. 

404.3 Continuous wastes and fixture tailpieces shall be con- 
structed from the materials specified in Section 701.0 for 
drainage piping, provided, however, that such connections 
where exposed or accessible shall be permitted to be of seam- 
less drawn brass not less than No. 20 B & S Gauge (0.032 
inches) (0.8 mm). Each such tailpiece, continuous waste, or 
waste and overflow shall be not less than one and one-half 
{Wi) inches (40 mm) O.D. for sinks, dishwashers, laundry 
tubs, bathtubs, urinals, and similar fixtures, and not less than 
one and one-quarter {Wa) inches (32 mm) for lavatories, 
drinking fountains, and similar small fixtures. 

404.4 Approved wye or other directional-type branch fittings 
shall be installed in continuous wastes connecting or receiv- 
ing the discharge fi-om food waste disposal units, dishwash- 
ers, clothes washers, or other force discharge fixtures or 
appliances. No dishwasher drain shall be connected to a sink 
tailpiece, continuous waste, or trap on the discharge side of a 
food waste disposal unit. 

405.0 Prohibited Fixtures. 

405.1 Water closets having an invisible seal or an unventi- 
lated space or having walls which are not thoroughly washed 
at each discharge shall be prohibited. Any water closet that 
might permit siphonage of the contents of the bowl back into 
the tank shall be prohibited. Drinking fountains shall not be 
installed in public toilet rooms. 

405.2 Prohibited Urinals. Trough urinals and urinals with 
an invisible seal shall be prohibited. 

Exception: Non-water urinals. 

405.3 Fixed wooden, or tile wash trays or sinks for domestic 
use shall not be installed in any building designed or used for 
human habitation. No sheet metal-lined wooden bathtub shall 
be installed or reconnected. No dry or chemical closet (toi- 
let) shall be installed in any building used for human habita- 
tion, unless first approved by the Health Officer 

406.0 Special Fixtures and Specialties. 

406.1 Water and Waste Connections. Baptisteries, orna- 
mental and lily ponds, aquaria, ornamental fountain basins, 
and similar fixtures and specialties requiring water and/or 
waste connections shall be submitted for approval to the Au- 
thority Having Jurisdiction prior to installation. 

406.2 Restaurant kitchen and other special use sinks shall be 
permitted to be made of approved-type bonderized and galva- 
nized sheet steel of not less than No. 16 U.S. gauge (0.0625 
inches) (1.6 mm). Sheet-metal plumbing fuctures shall be ade- 



52 



2010 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



II 



quately designed, constructed, and braced in an approved man- 
ner to satisfactorily accomplish their intended purpose. 

406.3 Special Use Fixtures. Special use fixtures shall be 
made of one of the following: 

(1) Soapstone 

(2) Chemical stoneware 

(3) Copper-based alloy 

(4) Nickel-based alloy 

(5) Corrosion-resistant steel 

(6) Other materials suited for the intended use of the fixture. 

406.4 Zinc AUoy Components. Zinc alloy components shall 
meet the applicable nationally recognized standards and shall 
be used in accordance with their listing. 

406.5 Drinking Fountains. [HCD 1 & HCD 2] Drinking 
fountains shall be installed and so regulated that a jet of 
water extending at least 2 inches (51 mm) in height from the 
water orifice shall be constantly available. The orifice shall 
not be accessible to the mouth of the drinker nor subject to 
immersion. 

406.5.1 [DPH] Drinking fountains shall be installed and 
so regulated that a jet of water extending at least 2 inches 
(51 mm) in height from the water orifice shall be avail- 
able when turned on. The orifice shall not be accessible 
to the mouth of the drinker nor subject to immersion, 

407.0 Installation. 

407.1 Cleaning. Plumbing fixtures shall be installed in a 
manner to afford easy access for repairs and cleaning. Where 
practical, pipes from fixtures shall be run to the nearest wall. 

407.2 Joints. Where a fixture comes in contact with the wall 
or floor, the joint between the fixture and the wall or floor 
shall be made water-tight. 

407.3 Securing Fixtures. Floor-outlet or floor-mounted fix- 
tures shall be rigidly secured to the drainage connection and 
to the floor, when so designed, by screws or bolts of copper, 
brass, or other equally corrosion-resistant material. 

407.4 Wall-Hung Fixtures. Wall-hung fixtures shall be 
rigidly supported by metal supporting members so that no 
strain is transmitted to the cormections. Flush tanks and sim- 
ilar appurtenances shall be secured by approved non-corro- 
sive screws or bolts. 

407.5 Setting. Fixtures shall be set level and in proper align- 
ment with reference to adjacent walls. No water closet or 
bidet shall be set closer than fifteen (15) inches (381 mm) 
from its center to any side wall or obstruction nor closer than 
thirty (30) inches (762 mm) center to center to any similar 
fixture. The clear space in front of any water closet or bidet 
shall be not less than twenty-four (24) inches (610 mm). No 
urinal shall be set closer than twelve (12) inches (305 mm) 
from its center to any side wall or partition nor closer than 
twenty-four (24) inches (610 mm) center to center. 

Exception: The installation of paper dispensers or accessi- 
bility grab bars shall not be considered obstructions. 



407.6 Installations for Persons with Disabilities. Where fa- 
cilities for persons with disabilities are required in applicable 
building regulations, the facilities shall be installed in accor- 
dance with those regulations. [HCD 1-ACJ For specific re- 
quirements regarding accommodations for persons with 
disabilities, see California Code of Regulations, Title 24, Part \\ 
2, Chapter 11 A and/or Chapter UB as applicable. 

407.7 Supply Fittings. The supply lines and fittings for every 
plumbing fixture shall be so installed as to prevent backflow 
as required in Chapter 6. 

408.0 Water Closets. 

408.1 Water closet bowls for public use shall be of the elon- 
gated type. In nurseries, schools, and other similar places 
where plumbing fixtures are provided for the use of children 
less than six (6) years of age, water closets shall be of a size 
and height suitable for children's use. Water closets shall be 
equipped with seats as required below. 

408.2 Water Closet Seats. 

408.2.1 Water closet seats shall be of smooth, non-ab- 
sorbent material. Seats for public use shall conform to 
the applicable standard referenced in Table 14-1. 

408.2.2 Water closet seats, for public use, shall be of the 
elongated type and either of the open front type or have 
an automatic seat cover dispenser. 

408.2.3 Water closet seats shall be properly sized for the 
water closet bowl type. 

408.3 Securing Floor-Mounted, Back-Outlet Water Closet f 
Bowls. Floor-mounted, back-outlet water closet bowls shall I 
be set level with an angle of ninety (90) degrees (1.57 rad) 
between the floor and wall at the centerline of the fixture out- 
let. The floor and wall shall have a flat mounting surface not 
less than five (5) inches (127 mm) to the right and left of the 
fixture outlet centerline. The fixture shall be secured to the 
wall outlet flange or drainage connection and to the floor by 
corrosion-resistant screws or bohs. The closet flange shall be 
secured to a firm base. 

Where floor-mounted, back-outlet water closets are used, 
the soil pipe shall be not less than three (3) inches (80 mm) in 
diameter. Offset, eccentric, or reducing floor flanges shall not 
be used. 

408.4 Closet Rings (Closet Flanges). I 

408.4.1 Closet rings (closet flanges) for water closets or | 
similar fixtures shall be of an approved type and shall be 
bronze, copper, hard lead, cast-iron, galvanized mal- 
leable iron, ABS, PVC, or other approved materials. 
Each such closet ring (closet flange) shall be approxi- 
mately seven (7) inches (178 mm) in diameter and, when 
installed, shall, together with the soil pipe, present a one 
and one-half {iVi) inch (38 mm) wide flange or face to 
receive the fixture gasket or closet seal. 

408.4.2 Caulked-on closet rings (closet flanges) shall be | 
not less than one-fourth QA) inch (6.4 mm) thick and not 
less than two (2) inches (5 1 mm) in overall depth. 



2010 CALIFORNIA PLUMBING CODE 



53 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



I 408.4.3 Closet rings (closet flanges) shall be burned or 
soldered to lead bends or stubs, shall be caulked to cast- 
iron soil pipe, shall be solvent cemented to ABS and 
PVC, and shall be screwed or fastened in an approved 
manner to other materials. 

I 408.4.4 Closet rings (closet flanges) shall be adequately 
designed and secured to support fixtures connected 
thereto. 

I 408.4.5 Closet screws, bolts, washers, and similar fas- 
teners shall be of brass, copper, or other listed, equally 
corrosion-resistant materials. Screws and bolts shall be 
of adequate size and number to properly support the fix- 
ture installed. 

409.0 Urinals. 

Every water supply to a urinal shall be protected by an ap- 
proved-type vacuum breaker or other approved backflow pre- 
vention device as described in Section 603.4. 

410.0 Flushing Devices for Water Closets and Urinals. 

410.1 Flushing Devices Required. Each water closet, urinal, 
clinic sink, or other plumbing fixture that depends on trap 
siphonage to discharge its waste contents shall be provided 
with a flushometer valve, flushometer tank, or flush tank de- 
signed and installed so as to supply water in sufficient quan- 
tity and rate of flow to flush the contents of the fixture to 
which it is connected, to cleanse the fixture, and to refill the 
fixture trap, without excessive water use. Flushing devices 
shall meet anti-siphon requirements required in Chapter 6. 

410.2 Automatic Flushing Tanks. Tanks flushing more than 
one (1) urinal shall be automatic in operation and of sufficient 
capacity to provide the necessary volume to flush and prop- 
erly cleanse urinals simultaneously. Automatically controlled 
flushometer valves shall be permitted to be substituted for 
flush tanks. 

410.3 Flushometer Valves. No manually controlled flushome- 
ter valve shall be used to flush more than one (1) urinal, and 
each such urinal flushometer valve shall be an approved, self- 
closing type discharging a predetermined quantity of water. 
Flushometers shall be installed so that they will be accessible 
for repair. Flushometer valves shall not be used where the water 
pressure is insufficient to properly operate them. When the 
valve is operated, it shall complete the cycle of operation au- 
tomatically, opening fully and closing positively under the line 
water pressure. Each flushometer shall be provided with a 
means for regulating the flow through it. 

410.4 Water Supply for Flush Tanks. An adequate quantity 
of water shall be provided to flush and clean the fixture 
served. The water supply for flushing tanks and flushometer 
tanks equipped for manual flushing shall be controlled by a 
float valve or other automatic device designed to refill the 
tank after each discharge and to completely shut off the water 
flow to the tank when the tank is filled to operational capac- 
ity. Provision shall be made to automatically supply water to 
the fixture so as to refill the trap seal after each flushing. The 
water supply to flush tanks equipped for automatic flushing 
shall be controlled by a suitable timing device. 



410.5 Overflows in Flush Tanks. Flush tanks shall be pro- 
vided with overflows discharging into the water closet or uri- 
nal connected thereto. Overflows supplied as original parts 
with the fixture shall be of sufficient size to prevent tank 
flooding at the maximum rate at which the tank is supplied 
with water under normal operating conditions and when in- 
stalled per manufacturer's instructions. 

411.0 Floor Drains and Shower Stalls. 

411.1 Floor drains shall be considered plumbing fixtures, and 
each such drain shall be provided with an approved-type strainer 
having a waterway equivalent to the area of the tailpiece. Floor 
drains, floor receptors, and shower drains shall be of an ap- 
proved type, suitably flanged to provide a water-tight joint in 
the floor. 

411.2 Location of Floor Drains. Floor drains shall be in- 
stalled in the following areas: 

411.2.1 Toilet rooms containing two (2) or more water 
closets or a combination of one (I) water closet and one 
(1) urinal, except in a dwelling unit. 

411.2.2 Commercial kitchens and in accordance with I 
Section 704.3. I 

411.2.3 Laundry rooms in commercial buildings and 
common laundry facilities in multi-family dwelling 
buildings. 

411.3 Food Storage Areas. If drains are provided in store- 
rooms, walk-in freezers, walk-in coolers, refiigerated equip- 
ment, or other locations where food is stored, such drains 
shall have indirect waste piping. Separate waste pipes shall be 
run from each food storage area, each with an indirect con- 
nection to the building sanitary drainage system. Traps shall 
be provided if required under Section 801 .2.2 of this code and 
shall be vented. 

Indirect drains shall be permitted to be located in freez- 
ers or other spaces where freezing temperatures are main- 
tained, provided that traps, when supplied, are located where 
the seal will not freeze. Otherwise, the floor of the freezer 
shall be sloped to a floor drain located outside of the storage 
compartment. 

411.4 Floor Slope. Floors shall be sloped to floor drains. 

411.5 Shower receptors are plumbing fixtures and shall con- 
form to the general requirements contained in Section 401.0. 
Each such shower receptor shall be constructed of vitrified 
china or earthenware, ceramic tile, porcelain-enameled metal, 
or of such other material acceptable to the Authority Having 
Jurisdiction. No shower receptor shall be installed unless it 
conforms to acceptable standards as referenced in Table 14- 
1 or until a specification or a prototype or both of such re- 
ceptor has first been submitted to and approval obtained from 
the Authority Having Jurisdiction. 

411.6 Each shower receptor shall be an approved type and be 
so constructed as to have a finished dam, curb, or threshold 
that is not less than one (1) inch (25.4 mm) lower than the 
sides and back of such receptor. In no case shall any dam or 
threshold be less than two (2) inches (51 mm) or exceeding 
nine (9) inches (229 mm) in depth when measured from the 



54 



2010 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



top of the dam or threshold to the top of the drain. Each such 
receptor shall be provided with an integral nailing flange to 
be located where the receptor meets the vertical surface of the 
finished interior of the shower compartment. The flange shall 
be water-tight and extend vertically not less than one (1) inch 
(25.4 mm) above the top of the sides of the receptor. The fin- 
ished fioor of the receptor shall slope uniformly from the sides 
toward the drain not less than one-quarter (Va) inch per foot 
(20.8 mm/m), nor more than one-half (!/2) inch per foot (41.8 
mm/m). Thresholds shall be of sufficient width to accommo- 
date a minimum twenty-two (22) inch (559 mm) door. Shower 
doors shall open so as to maintain not less than a twenty-two 
(22) inch (559 mm) unobstructed opening for egress. 

Exception; Showers that are designed to comply with the ac- 
cessibility standards listed in Table 14-1. fHCD 1-AC] Spe- 
cific requirements regarding accommodations for persons 
II with disabilities are contained in California Code of Regula- 
tions, Title 24, Part 2, Chapter 11 A and/ or Chapter IIB as 
applicable. Table 14-1 does not contain the correct accessi- 
bility standards for use in California. 

411.7 Shower compartments, regardless of shape, shall have a 
minimum finished interior of one thousand and twenty- four 
(1,024) square inches (0.66 m^) and shall also be capable of en- 
compassing a thirty (30) inch (762 mm) circle. The minimum 
required area and dimensions shall be measured at a height 
equal to the top of the threshold and at a point tangent to its 

Icenterline. The area and dimensions shall be maintained to a 
point of not less than seventy (70) inches (1,778 mm) above 
the shower drain outlet with no protrusions other than the fix- 
ture valve or valves, shower head, soap dishes, shelves, and 
safety grab bars or rails. Fold-down seats in accessible shower 
stalls shall be permitted to protrude into the thirty (30) inch 
(762 mm) circle. 

Exceptions: 

(1) Showers that are designed to comply with Chapter 11 A 
or IIB of the California Building Code. 

(2) The minimum required area and dimension shall not 
apply for a shower receptor having overall dimensions 
of not less than thirty (30) inches (762 mm) in width and 
sixty (60) inches (1,524 mm) in length. 

(3) fHCD I'AC] Specific requirements regarding accom- 
II modations for persons with disabilities are contained in 

California Code of Regulations, Title 24, Part 2, Chap- 
ter llA and/or Chapter IIB as applicable. ICC/ANSI 
All 7.1, Standard for Accessible and Usable Buildings 
and Facilities, does not contain the correct accessibility 
standards for use in California. 

411.8 When the construction of on-site built-up shower re- 
I ceptors are permitted by the Authority Having Jurisdiction, re- 
ceptors built directly on the ground shall be water-tight and 
shall be constructed fi*om approved-type dense, nonabsorbent 
and noncorrosive materials. Each such receptor shall be ade- 
quately reinforced, shall be provided with an approved flanged 
floor drain designed to make a water-tight joint in the floor, 
and shall have smooth, impervious, and durable surfaces. 



Shower receptors shall have the subfloor and rough side | 
of walls to a height of not less than three (3) inches (76 mm) 
above the top of the finished dam or threshold shall be first 
lined with sheet plastic,* lead,* or copper,* or shall be lined 
with other durable and water-tight materials. Showers that are 
provided with a built in place, permanent seat or seating area 
that is located within the shower enclosure, shall be first lined 
with sheet plastic,* lead,* copper,* or shall be lined with 
other durable and water-tight materials that extend not less 
than three (3) inches (76 mm) above horizontal surfaces of 
the seat or the seating area. 

Lining materials shall be pitched one-quarter QA) inch per 
foot (20.8 mm/m) to weep holes in the subdrain of a smooth 
and solidly formed subbase. Such lining materials shall extend 
upward on the rough jambs of the shower opening to a point not 
less than three (3) inches (76 mm) above the horizontal sur- 
faces of the seat or the seating area, the top of the finished dam 
or threshold and shall extend outward over the top of the per- 
manent seat, permanent seating area, or rough threshold and 
be tumed over and fastened on the outside face of both the per- 
manent seat, permanent seating area, or rough threshold and 
the jambs. 

Nonmetallic shower subpans or linings shall be permit- 
ted to be built up on the job site of not less than three (3) lay- 
ers of standard, grade fifteen (15) pound (6.8 kg) 
asphalt-impregnated roofing felt. The bottom layer shall be 
fitted to the formed subbase and each succeeding layer thor- 
oughly hot-mopped to that below. Comers shall be carefully 
fitted and shall be made strong and water-tight by folding or 
lapping, and each comer shall be reinforced with suitable 
webbing hot-mopped in place. 

Folds, laps, and reinforcing webbing shall extend not less 
than four (4) inches (102 mm) in all directions from the cor- 
ner, and webbing shall be of approved type and mesh, pro- 
ducing a tensile strength of not less than fifty (50) psi (344.7 
kPa) in either direction. Nonmetallic shower subpans or lin- 
ings shall be permitted to consist of multilayers of other ap- 
proved equivalent materials suitably reinforced and carefiiUy 
fitted in place on the job site as elsewhere required in this sec- 
tion. 

Linings shall be properly recessed and fastened to ap- 
proved backing so as not to occupy the space required for the 
wall covering and shall not be nailed or perforated at any 
point that is less than one (1) inch (25.4 mm) above the fin- 
ished dam or threshold. An approved-type subdrain shall be 
installed with every shower subpan or lining. Each such 
subdrain shall be of the type that sets flush with the subbase 
and shall be equipped with a clamping ring or other device to 
make a tight connection between the lining and the drain. The 
subdrain shall have weep holes into the waste line. The weep 
holes located in the subdrain clamping ring shall be protected 
from clogging. 

Shower lining materials shall conform to approved stan- 
dards acceptable to the Authority Having Jurisdiction. 

*Note: Lead and copper subpans or linings shall be insulated | 
from conducting substances other than their connecting drain 
by fifteen (15) pound (6.8 kg) asphalt felt or its equivalent, 



2010 CALIFORNIA PLUMBING CODE 



55 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



and no lead pan or liner shall be constructed of material 
weighing less than four (4) pounds per square foot (19.5 
kg/m^). Copper pans or liners shall be not less than No. 24 B 
& S Gauge (0.02 inches) (0.5 mm). Joints in lead pans or lin- 
ers shall be burned. Joints in copper pans or liners shall be 
soldered or brazed. Plastic pans shall not be coated with as- 
phalt-based materials. 

411.8.1 Tests for Shower Receptors. Shower receptors 
shall be tested for water-tightness by filling with water to 
the level of the rough threshold. The test plug shall be so 
placed that both upper and under sides of the subpan shall 
be subjected to the test at the point where it is clamped 
to the drain. 

411.9 Floors of public shower rooms shall have a nonskid sur- 
face and shall be drained in such a manner that wastewater 
from one bather shall not pass over areas occupied by other 
bathers. Gutters in public or gang shower rooms shall have 
rounded comers for easy cleaning and shall be sloped not less 
than two (2) percent toward drains. Drains in gutters shall be 
spaced at a maximum of eight (8) feet (2,438 mm) from side- 
walls nor more than sixteen (16) feet (4,877 mm) apart. 

411.10 Location of Valves and Heads. Control valves and 
showerheads shall be located on the sidewall of shower com- 
partments or otherwise arranged so that the showerhead does 
not discharge directly at the entrance to the compartment and 
the bather can adjust the valves prior to stepping into the 
shower spray. 

411.11 Water Supply Riser. Every water supply riser from 
the shower valve to the showerhead outlet, whether exposed 
or not, shall be securely attached to the structure. 

412.0 Minimum Number of Required Fixtures. 

412.1 Fixture Count. Plumbing fixtures shall be provided 
for the type of building occupancy and in the minimum num- 

II ber shown in Table 4-1 [OSHPD h 2, 3 & 4] and Table 4-2. 

41 2. LI [DSA-AC] Effective January 1, 1990, in new 
construction and those existing facilities which occu- 
pancy type are listed in Tables 4-1 and 4-4 for public use, 
which apply for permit to undertake construction, struc- 
tural alterations, repairs or improvement which exceed 
50 percent of the square footage of the entire facility, 
shall install water closets, urinals, lavatories and drink- 
ing fountains as stipulated in Tables 4-1 and 4-4 for pub- 
lic use. Community and/or municipal parks with a 
bleacher capacity not exceeding 500 seats shall be ex- 
empt from the requirements of this section and Tables 4- 
1 and 4-4. Each bathroom shall comply with Part 2, 
Chapters 11 A and IIB of the California Building Code. 

412.2 Access to Fixtures. 

412.2.1 In multi-story buildings, accessibility to the re- 
quired fixtures shall not exceed one (1) vertical story. 

412.2.2 Fixtures accessible only to private offices shall 
not be counted to determine compliance with this sec- 
tion. 



412.3 Separate Facilities. 

Separate toilet facilities shall be provided for each sex. 
Exceptions: 

( 1 ) Residential installations. 

(2) In occupancies serving ten (10) or fewer people, one (1) 
toilet facility, designed for use by no more than one (1) 
person at a time, shall be permitted for use by both sexes. 

(3) In business and mercantile occupancies with a total floor 
area of fifteen-hundred (1,500) square feet (139.4 m^) or 
less, one (1) toilet facility, designed for use by no more 
than one (1) person at a time, shall satisfy the require- 
ments for serving customers and employees of both 
sexes. 

412,3,1 [OSHPD 1, 2, 3 & 4] Separate toilet facilities 
shall be provided for the use of patients, staff personnel 
and visitors. 

412.4 Fixture Requirements for Special Occupancies. 

412.4.1 Additional fixtures may be required when un- 
usual environmental conditions or referenced activities 
are encountered. 

412.4.2 In food preparation areas, fixture requirements 
may be dictated by health codes. 

412.4.3 Types of occupancy not shown in Table 4-1 shall 
be considered individually by the Authority Having Ju- 
risdiction. 

412.5 Facilities in Mercantile and Business Occupancies 
Serving Customers. 

412.5.1 Requirements for customers and employees shall 
be permitted to be met with a single set of restrooms ac- 
cessible to both groups. 

The required number of fixtures shall be the greater of 
the required number for employees or the required num- 
ber for customers. 

412.5.2 Fixtures for customer use shall be permitted to be 
met by providing a centrally located facility accessible 
to several stores. The maximum distance from entry to 
any store to this facility shall not exceed five-hundred 

(500) feet (152.4 m). 

412.5.3 In stores with a floor area of one-hundred and 
fifty (150) square feet (13.9 m^) or less, the requirement 
to provide facilities for employees shall be permitted to 
be met by providing a centrally located facility accessi- 
ble to several stores. The maximum distance from entry 
to any store to this facility shall not exceed three-hun- 
dred (300) feet (91.4 m). 

412.6 Toilet Facilities for Workers. 

Suitable toilet facihties shall be provided and maintained in 
a sanitary condition for the use of workers during construc- 
tion. 

412. 7 fCAJ Cosmetology, Each school shall provide public 
toilet rooms for each sex on the licensed premises in accor- 
dance with the California Plumbing Code, Table 4-1. 

412.8 fCAJ Cosmetology Establishments. Each establish- 
ment where hairdressing services are performed shall pro- 
vide at least one public toilet room located on the premises in 
accordance with the California Plumbing Code, Table 4-1. 



56 



2010 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



412. 9 [DPH] Commissaries Serving Mobile Food Prepara- 
tion Units. Commissaries serving mobile food preparation 
units shall have at least one hose bibb. The hose bibb shall be 
supplied with hot and cold water and be provided with a sin- 
gle spout, a backflow-preventer device and shall be located 
on the premises of the establishment. 

I 412.10 [DPH] Employee Lavatories in Food Establish- 
ments. Employee lavatories installed in food establishments 
shall be equipped with an approved single spout capable of 
providing tempered (lOOT - 115T) (37.8T - 46.FC) run- 
ning water. 

I Note: This requirement applies only to commissaries serving 
mobile food preparation units. 

413.0 Fixtures and Fixture Fittings for Persons with Dis- 
abilities. 

Plumbing fixtures and fixture fittings for persons with dis- 
abilities shall conform to the appropriate standards referenced 
I in Table 14-1 of this code. [HCD 1-ACJ Specific requirements 
regarding accommodations for persons with disabilities are 
contained in California Code of Regulations, Title 24, Part 
2, Chapter II A and/ or Chapter 11 B as applicable. Table 14- 
1 does not contain the correct accessibility standards for use 
in California. 

413.1 Limitation of Hot Water Temperature for Public 
Lavatories. Hot water delivered from public-use lavatories 
shall be limited to a maximum temperature of 120T (49°C) 
by a device that conforms to ASSE 1070, Standard for Water 
Temperature Limiting Devices, or CSAB 125.3, Standard for 
Plumbing Fittings. The water heater thermostat shall not be 
considered a control for meeting this provision. 



415.0 Installation of Fixture Fittings. 

Where two (2) separate handles control the hot and cold 
water, the left-hand control of the faucet when facing the fix- 
ture fitting outlet shall provide the means to alter the hot water 
temperature from the fixture fitting. 

Single-handle mixing valves shall have the flow of hot 
water correspond to the markings on the fitting. 

416.0 Bidets. 

416.1 Materials. Bidets shall conform to the standards listed 
in Table 14-1. 

416.2 Backflow Protection. The water supply to the bidet 
shall be protected according to Chapter 6, which allows for an 
airgap or vacuum breaker. 

416.3 Limitation of Water Temperature in Bidets. The 

maximum hot water temperature discharging from a bidet 
shall be limited to HOT (43°C) by a device that conforms to 
ASSE 1070, Standard for Water Temperature Limiting De- 
vices, or CSA B 125.3, Standard for Plumbing Fittings. The 
water heater thermostat shall not be considered a control for 
meeting this provision. 

417.0 Future Fixtures. 

When provisions are made for the future installation of fix- 
tures, those provided for shall be considered in determining 
the required sizes of drain pipes. Construction for future in- 
stallations shall be terminated with a plugged fitting or fit- 
tings. Where the plugged fitting is at the point where the trap 
of a fixture is installed, the plumbing system for such fixture 
shall be complete and conform with the plumbing require- 
ments of this code. 



414.0 Bathtubs and Whirlpool Bathtubs. 

Unless otherwise listed, bathtubs and whirlpool bathtubs shall 
comply with the following requirements: 

414.1 A removable panel shall be provided to access and re- 
move the pump. Whirlpool pump access located in the crawl 
space shall be located no more than twenty (20) feet (6,096 
mm) from an access door, trap door, or crawl hole. 

414.2 The circulation pump shall be located above the crown 
weir of the trap. 

414.3 The pump and the circulation piping shall be self-drain- 
ing to minimize water retention in accordance with standards 
referenced in Table 14-1. 

414.4 Suction fittings on whirlpool bathtubs shall comply 
with the listed standards. 

414.5 Limitation of Hot Water in Bathtubs and Whirlpool 
Bathtubs. The maximum hot water temperature discharging 
fi-om the bathtub and whirlpool bathtub filler shall be limited to 
120T (49T) by a device that conforms to ASSE 1070, Stan- 
dard for Water Temperature Limiting Devices, or CSAB 125. 3, 
Standard for Plumbing Fittings. The water heater thermostat 
shall not be considered a control for meeting this provision. 



418.0 Shower and Tub-Shower Combination Control 
Valves. 

Showers and tub-shower combinations in buildings shall be 
provided with individual control valves of the pressure bal- 
ance, thermostatic, or combination pressure balance/thermo- 
static mixing valve type that provide scald and thermal shock 
protection. These valves shall conform to ASSE 1016, Stan- 
dard for Automatic Compensating Valves for Individual Show- 
ers and Tub/Shower Combinations, or ASME A 1 1 2 . 1 8 . 1 / 
CSA B 125.1, Standard for Plumbing Supply Fittings. Gang 
showers, when supplied with a single temperature-controlled 
water supply pipe, shall be controlled by a mixing valve that 
conforms to ASSE 1069, Standard for Automatic Tempera- 
ture Control Mixing Valves. Handle position stops shall be 
provided on such valves and shall be adjusted per the manu- 
facturer's instructions to deliver a maximum mixed water set- 
ting of 120°F (49°C). The water heater thermostat shall not be 
considered a suitable control for meeting this provision. 



2010 CALIFORNIA PLUMBING CODE 



57 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE 4-1 
MINIMUM PLUMBING FACILITIES' 

Each building shall be provided with sanitary facilities, including provisions for persons with disabilities as prescribed by the Department Having 
Jurisdiction^^. Table 4-1 applies to new buildings, additions to a building, and changes of occupancy or type in an existing building resulting in in- 
creased occupant load. Exception: New cafeterias used only by employees. 

For requirements for persons with disabilities, Chapter IIA or IIB of the California Building Code, shall be used. 

The total occupant load shall be determined in accordance with the [BSC^ DSA-SS & DSA-SS/CC] Occupant Load Factor Table A, The type 
of building or occupancy shall be determined based on the actual use of the various spaces within the building. Building categories not shown in 
Table 4-1 shall be considered separately by the Authority Having Jurisdiction. The minimum number of fixtures shall be calculated at 50 percent 
male and 50 percent female based on the total occupant load. 

Once the occupant load and uses are determined, the requirements of Section 412.0 and Table 4-1 shall be applied to determine the minimum 
number of plumbing fixtures required. 
Exceptions: 

(!) [HCD 1-AC& HCD 2] For applications listed in Sections 1.8.2.1.2 and 1.8.2.1.3 regulated by the Department of Housing and Community De- 
velopment, each bidlding shall be provided with sanitary facilities, including provisions for persons with disabilities as prescribed by the Depart- 
ment. Covered multi-family dwellings required to be accessible to persons with disabilities shall comply with California Code of Regulations, Title 
24, Part 2, Chapter 11 A. Permanent buildings in mobilehome parks and special occupancy parks required to be accessible by persons with dis- 
abilities, shall comply with California Code of Regulations, Title 24, Part 2, Chapter IIB. 

(2) [HCD 1] For limited density owner-built rural dwelling sanitaiy facilities, the type, design and number of facilities as required and approved 
by the local health official shall be provided to the dwelling sites. It shall not be required that such facilities be located within the dwelling. 



TYPE OF BUILDING^ 


WATER CLOSETS^'* 


URINALS^^" 


LAVATORIES 


BATHTUBS OR 


DRINKING FOUN- 


OR OCCUPANCY 


(FIXTURES PER PERSON) 


(FIXTURES PER PERSON) 


(FIXTURES PER PERSON) 


SHOWERS 

(FIXTURES PER 

PERSON) 


TAINS^"^^ 

(FIXTURES PER 

PERSON) 


Assembly places - 


Male Female 


Male 


Male Female 






theatres, auditori- 


1:1-15 1:1-15 


0: 1-9 


1 per 40 1 per 40 






ums, convention 


2: 16-35 3: 16-35 


1: 10-50 








halls, etc.- for per- 


3: 36-55 4: 36-55 


Add one fixture for each 








manent employee 


Over 55, add 1 fixture for 


additional 50 males. 








use 


each additional 40 persons. 










Assembly places - 


Male Female 


Male 


Male Female 






theatres, auditori- 


1:1-100 3:1-50 


1:1-100 


1: 1-200 1: 1-200 




1: 1-150 


ums, convention 


2:101-200 4:51-100 


2: 101-200 


2:201-400 2:201-400 




2: 151-400 


Halls, etc. - for 


3: 201-400 8: 101-200 


3:201-400 


3:401-750 3:401-750 




3:401-750 


pubhc use 


11:201-400 


4: 401-600 


Over 750, add one fixture 




Over 750, add 




Over 400, add one fixture 


Over 600, add 1 fixture 


for each additional 500 




one fixture for 




for each additional 500 


for each additional 300 


persons. 




each additional 




males and 1 for each ad- 


males. 






500 persons. 




ditional 125 females. 










Dormitories^- 


Male Female 


Male 


Male Female 


1 per 8 


1 per 150^2 


School or labor 1^ 


1 per 10 IperS 


1 per 25 


1 per 12 1 per 12 


For females, add 






Add 1 fixture for each ad- 


Over 150, add 1 fixture 


Over 12, add one fixture 


1 bathtub per 30. 






ditional 25 males (over 


for each additional 50 


for each additional 20 


Over 150, add 1 






10) and 1 for each addi- 


males. 


males and 1 for each 1 5 


bathtub per 20. 






tional 20 females (over 8). 




additional females. 






Dormitories - for 


Male Female 


Male 


Male Female 


IperS 




staff use^^ 


1:1-15 1:1-15 
2: 16-35 3: 16-35 
3: 36-55 4: 36-55 
Over 55, add 1 fixture for 
each additional 40 persons. 


1 per 50 


1 per 40 1 per 40 






Dwellings'* 












Single dwelling 


1 per dwelling 




1 per dwelling 


1 per dwelling 




Multiple dwelling 


1 per dwelling or apart- 




1 per dwellmg or apart- 


1 per dwelling or 




or apartment 


ment unit 




ment unit 


apartment unit 




house 1^ 












Hospital waiting 


1 per room 




1 per room 




1 per 15012 


rooms 












Hospitals - for em- 


Male Female 


Male 


Male Female 






ployee use 


1:1-15 1:1-15 
2: 16-35 3: 16-35 
3: 36-55 4: 36-55 
Over 55, add 1 fixture for 
each additional 40 persons. 


0:1-9 

1: 10-50 

Add one fixture for each 

additional 50 males. 


1 per 40 1 per 40 







58 



2010 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TYPE OF BUILDING^ 


WATER CLOSETS^* 


URINALS^'io 


LAVATORIES 


BATHTUBS OR 


DRINKING FOUN- 


OR OCCUPANCY 


(FIXTURES PER PERSON) 


(FIXTURES PER PERSON) 


(FIXTURES PER PERSON) 


SHOWERS 

(FIXTURES PER 

PERSON) 


TAINS^- 13,17 

(FIXTURES PER 
PERSON) 


Hospitals 






1 per room 


1 per room 


1 per 150^2 


Individual room 


1 per room 




1 per 10 patients 


1 per 20 patients 




Ward room 


1 per 8 patients 










Industrial^ ware- 


Male Female 




Up to 100, Iper 10 per- 


1 shower for each 


1 per 15012 


liouses, workshops, 


1:1-10 1:1-10 




sons 


15 persons ex- 




foundries, and simi- 


2:11-25 2:11-25 






posed to exces- 




lar establishments - 


3:26-50 3:26-50 




Over 100, Iper 15 per- 


sive heat or to 




for employee use 


4:51-75 4:51-75 
5: 76-100 5: 76-100 
Over 100, add 1 fixture for 
each additional 30 persons. 




sons^' ^ 


skin contamina- 
tion v/ith poison- 
ous, infectious, or 
irritating material 




Institutional - other 


Male Female 


Male 


Male Female 


Iper 8 


Iper 15012 


than hospitals or 


1 per 25 1 per 20 


0: 1-9 


1 per 10 I per 10 






penal institutions 




1: 10-50 








(on each occupied 




Add one fixture for each 








floor) 




additional 50 males. 








Institutional - other 


Male Female 


Male 


Male Female 


1 per 8 


Iper 150^2 


than hospitals or 


1:1-15 1:1-15 


0: 1-9 


1 per 40 1 per 40 






penal institutions 


2: 16-35 3: 16-35 


1: 10-50 








(on each occupied 


3:36-55 4:36-55 


Add one fixture for each 








floor) - for em- 


Over 55, add 1 fixture for 


additional 50 males. 








ployee use 


each additional 40 persons. 










Office or public 


Male Female 


Male 


Male Female 




1 per 150^2 


buildings 


1: 1-100 3: 1-50 


1: 1-100 


1: 1-200 1: 1-200 








2: 101-200 4:51-100 


2: 101-200 


2: 201-400 2: 201-400 








3: 201-400 8: 101-200 


3: 201-400 


3: 401-750 3: 401-750 








11:201-400 


4:401-600 


Over 750, add one fixture 








Over 400, add one fixture 


Over 600, add 1 fixture 


for each additional 500 








for each additional 500 


for each additional 300 


persons. 








males and 1 for each addi- 


males. 










tional 150 females. 










Office or public 


Male Female 


Male 


Male Female 






buildings ~ for em- 


1:1-15 1:1-15 


0: 1-9 


1 per 40 1 per 40 






ployee use 


2: 16-35 3: 16-35 
3: 36-55 4: 36-55 
Over 55, add 1 frxture for 
each additional 40 persons. 


1: 10-50 

Add one fixture for each 

additional 50 males. 








Penal institutions - 


Male Female 


Male 


Male Female 




Iper 15012 


for employee use 


1:1-15 1:1-15 
2: 16-35 3: 16-35 
3: 36-55 4: 36-55 
Over 55, add 1 fixture for 
each additional 40 persons. 


0: 1-9 

1: 10-50 

Add one fixture for each 

additional 50 males. 


1 per 40 1 per 40 






Penal institutions - 








1 per 16 




for prison use 












Cell 


1 per cell 


Male 


1 per cell 




1 per cell block 


Exercise room 


1 per exercise room 


1 per exercise room 


1 per exercise room 




floor 


Exercise Area 


1 per 20 




1 per 20 




1 per exercise 

room 

Access to drinking 

fountain 


Agriculture Build- 












ings 


At least 1 




At least 1 






Milking Barns 


Male Female 










Meat and Poultry 


1: 1-15 1: 1-15 










Inspection Bldgs 


2: 16-35 2: 16-35 
3: 36-55 3: 36-55 
4: 56-80 4: 56-80 
1 for each additional 30 
persons in excess of 80 










Schools of Cosme- 


Male Female 




At least 1 






tology 


"" At least 1 ""At least 2 
*Per installation 










Cosmetological 


*At least 1 *At least 1 










Establishments 


"^Per installation 











2010 CALIFORNIA PLUMBING CODE 



59 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TYPE OF BUILDING^ 
OR OCCUPANCY 


WATER CLOSETS^'' 
(FIXTURES PER PERSON) 


URINALS^-^^ 
(FIXTURES PER PERSON) 


LAVATORIES 
(FIXTURES PER PERSON) 


BATHTUBS OR 

SHOWERS 

(FIXTURES PER 

PERSON) 


DRINKING FOUN- 

(FIXTURES PER 
PERSON) 


Corrections Stan- 
dards Authority 
Juvenile Halls 

Camp 


I per 6 
I per 10 




] per 10 
1 per 10 


1 per6 
Iper 7 


Access to drink- 
ingfountain 
Access to drink- 
ingfountain 


Corrections Stan- 
dards 
Authority 

Local Detention 

Facilities 

Locked Sleeping 

Rooms ^^ 


IperS 
1 




IperS 
1 


1 per 20 




Public or profes- 
sional offices ^^ 


Same as Office or Public 
Buildings for employee 
use^^ 


Same as Office or Public 
Buildings for employee 
use^^ 


Same as Office or Public 
Buildings for employee 
use^^ 




Same as Office 
or Public Build- 
ings for employee 
use^^ 


Restaurants, pubs, 
and lounges^ ^'^^ 


Male Female 
1:1-50 1:1-50 
2:51-150 2:51-150 
3: 151-300 4: 151-300 
Over 300, add 1 fixture for 
each additional 200 per- 
sons. 


Male 

1: 1-150 

Over 150, add 1 fixture 

for each additional 150 

males. 


Male Female 
1:1-150 1:1-150 
2: 151-200 2: 151-200 
3: 201-400 3: 201-400 
Over 400, add 1 fixture 
for each additional 400 
persons. 






Retail or Whole- 
sale Stores 


Male Female 
1:1-100 1:1-25 
2:101-200 2:26-100 
3:201-400 4:101-200 
6:201-300 
8: 301-400 
Over 400, add one fixture 
for each additional 500 
males and one for each 150 
females 


Male 

0:0-25 

1:26-100 

2:101-200 

3:201-400 

4:401-600 

Over 600, add one fixture 

for each additional 300 

males 


One for each two water 
closets 




0: 1-30^^ 
1:31-150 

One additional 
drinking fountain 
for each 150 per- 
sons thereafter 


Schools - for staff 
use 

All schools 


Male Female 
1:1-15 1:1-15 
2: 16-35 2: 16-35 
3: 36-55 3: 36-55 
Over 55, add 1 fixture for 
each additional 40 persons. 


Male 
1 per 50 


Male Female 
1 per 40 1 per 40 






Schools - for stu- 
dent use 
Nursery 


Male Female 
1:1-20 1:1-20 
2:21-50 2:21-50 
Over 50, add 1 fixture for 
each additional 50 persons. 




Male Female 
1:1-25 1:1-25 
2: 26-50 2: 26-50 
Over 50, add 1 fixture for 
each additional 50 persons. 




1 per 15012 


Elementary 


Male Female 
1 per 30 1 per 25 


Male 

1 per 75 


Male Female 
1 per 35 1 per 35 




1 per 15012 


Secondary 


Male Female 
1 per 40 1 per 30 


Male 
1 per 35 


Male Female 
1 per 40 1 per 40 




Iper 15012 


Others (colleges, 
universities, adult 
centers, etc.) 


Male Female 
1 per 40 1 per 30 


Male 
1 per 35 


Male Female 
1 per 40 1 per 40 




1 per 15012 


Worship places ed- 
ucational and activ- 
ities Unit 


Male Female 
1 per 150 1 per 75 


Male 
1 per 150 


1 per 2 water closets 




1 per 15012 


Worship places 
principal assembly 
place 


Male Female 
1 per 150 1 per 75 


Male 
1 per 150 


1 per 2 water closets 




1 per 150^2 



60 



2010 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



The figures shown are based upon one (1) fixture being the minimum required for the number of persons indicated or any fraction thereof. 
Building categories not shown on this table shall be considered separately by the Authority Having Jurisdiction. 
Drinlcing fountains shall not be installed in toilet rooms. 

Laundry trays. One (1) laundry tray or one (1) automatic washer standpipe for each dwelling unit or one (1) laundry tray or one (1) automatic washer stand- 
pipe, or combination thereof, for each twelve (12) apartments. Kitchen sinks, one (1) for each dwelling or apartment unit. 

For each urinal added in excess of the minimum required, one water closet shall be permitted to be deducted. The number of water closets shall not be re- 
duced to less than two-thirds (V2) of the minimum requirement. 
As required by PSAI Z4. 1, Sanitation in Places of Employment. 
Where there is exposure to skin contamination with poisonous, infectious, or irritating materials, provide one (1) lavatory for each five (5) persons. 

o 

Twenty-four (24) lineal inches (610 mm) of wash sink or eighteen (18) inches (457 mm) of a circular basin, when provided with water outlets for such space, 

shall be considered equivalent to one (1) lavatory. 

Laundry trays, one (1) for each fifty (50) persons. Service sinks, one (1) for each hundred (100) persons. 

General. In applying this schedule of facilities, consideration shall be given to the accessibility of the fixtures. Conformity purely on a numerical basis may 

not result in an installation suited to the needs of the individual establishment. For example, schools should be provided with toilet facilities on each floor 

having classrooms. 

a. Surrounding materials, wall, and floor space to a point two (2) feet (610 mm) in front of urinal Up and four (4) feet (1,219 mm) above the floor, and not 
less than two (2) feet (610 mm) to each side of the urinal shall be lined with non-absorbent materials. 

b. Trough urinals shall be prohibited. 

A restaurant is defined as a business that sells food to be consumed on the premises. 

a. The number of occupants for a drive-in restaurant shall be considered as equal to the number of parking stalls. 

b. Hand-washing facilities shall be available in the kitchen for employees. 

Where food is consumed indoors, water stations shall be permitted to be substituted for drinking fountains. Offices, or public buildings for use by more than 
six (6) persons shall have one (1) drinking fountain for the first one-hundred fifty (150) persons and one (1) additional fountain for each three-hundred (300) 
persons thereafter. 

There shall be at least one (1) drinking fountain per occupied floor in schools, theatres, auditoriums, dormitories, offices, or public buildings. 
The total number of water closets for females shall be equal to the total number of water closets and urinals required for males. This requirement shall not 
apply to Retail or Wholesale Stores. 

For smaller-type Public and Professional Offices such as banks, dental offices, law offices, real estate offices, architectural offices, engineering offices, and 
similar uses. A public area in these offices shall use the requirements for Retail or Wholesale Stores. 

Recreation or community room in multiple dwellings or apartment buildings, regardless or their occupant load, shall be permitted to have separate single- 
accoimnodation facilities in common-use areas within tracts or multi-family residential occupancies where the use of these areas is limited exclusively to 
owners, residents, and their guests. Examples are community recreation or multi-purpose areas in apartments, condos, townhouses, or tracts. 
A drinking fountain shall not be required in occupancies of 30 or less. When a drinking fountain is not required, then footnotes 3, 12, and 13 are not appli- 
cable. 
II ^* [BSC, DSA-ACy DSA-SS, DSA-SS/CQ HCD 1 & HCD 2 & OSHPD 1, 2, 3 <& 4] In accordance with Sections 1.8. 7 and 301.2, the Authority Having Ju- 
risdiction may approve alternative design criteria when determining the minimum number of plumbing fixtures. 

Fixtures need to not be located within the locked room provided a communication system or procedure is in effect to give the minor immediate access to a 
lavatory, toilet and drinking fountain. 



2010 CALIFORNIA PLUMBING CODE 61 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE A. 
OCCUPANT LOAD FACTOR: 
[BSC, DSA-SS & DSA-SS/CC] 



OCCUPANCY*, ** 


OCCUPANT LOAD FACTOR (square feet) 
(CBC 2001, Table A-29A) 


Group A 

1 . Auditoriums, convention halls, dance floors, lodge rooms, stadiums, 
and casinos (where no fixed seating is provided) 

(use Vi "one-half the number of fixed seating) 

2. Conference rooms, dining rooms, drinking establishments, exhibit 
rooms, gymnasiums, lounges, stages, and similar uses, including restau- 
rants classified as Group B occupancies 

3. Worship places; principal assembly area, educational and activity unit 
(where no fixed seating is provided) 

(use Vi "one-half the number of fixed seating) 


15 
30 
30 


Group B 

Office or public builduigs (area accessible to the public) 


200 


Group E 

Schools for day care, elementary, secondary 


50 


Educational Facilities Other than Group E 

Colleges, universities, adult centers, etc. 


50 


Group F 

Workshops, foundries and similar establishments 


2,000 


Group H 

Hazardous materials fabrication and storage 


2,000 


Group I 

Hospital general use area, health care facilities 


200 


Group M 

Retail or wholesale stores 


200 


Group R 

Congregate residence. Group R-1 


200 


Group S 

Warehouse 


5,000 



Any uses not specifically listed shall be based on similar uses listed in this table. 

For building or space with mixed occupancies, use appropriate occupancy group for each area (for example, a school may have an "A" occupancy 

for the gymnasium, a "B" occupancy for the office, an "E" occupancy for the classrooms, etc.). 

Accessory areas may be excluded (for example: hallway, restroom, stair enclosure). 



62 



2010 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE 4-2 
[OSHPD 1,2,3 & 4] MINIMUM PLUMBING FACILITIES 



SPACE 


HANDWASHING 
FIXTURE 


SCRUB 
SINKS 


TOILETS 


BATHTUBS 

OR 
SHOWERS 


SERVICE 
SINKS^ 


CLINIC 
SINKS 


OSHPD 1 














General Acute Care Hospitals^' ^^ and Acute Psy- 
chiatric Hospitals^' ^^ 














Administration Space 














Lobby 














Male 


I' 




1 








Female 


J' 




1 








Airborne infection isolation rooms 


2' 




1' 


1' 






Cardiac Catheterization 














Procedure room 




1' 






1 




Staff clothing changing areas 


I 




1 


1 shower 






Central Sterile Supply 


1^' 












Cesarean/Delivery Service Space 














Labor Rooms 


1 




f 


f 






Recovery Room 


1 










1 


Drug distribution station 


1 












Cesarean operating room 




2^' 










Delivejy room 




jlO 










Staff clothing changing areas 














Male 


1 




1 


1 






Female 


} 




1 


1 






Staff lounge toilet 


} 




1 








LDR or LDRP room 


1 




1 


1 






Waiting room 


f 




j26 








Clinical Laboratory Service Space^^ 


1 












Dietetic Service Space 


1 












Toilets and lockers 






1 








Emergency Service 














Standby emergency medical service 














Lobby - public toilets 


1 




I 








Treatment room 


1 












Open plan 


1:4 cubicles 












Patient toilet 


1 




1 








Administrative center/nurses ' station 


1 












Basic emergency medical service 














Public waiting 






1 








Treatment areas, more than 8 


I 




2 








Treatment room 


1 












Open plan 


1:4 cubicles 












Obserx'ation units 


1:4 cubicles 




1:8 cubicles 








Emergency surgery, Cystoscopy, or Special proce- 
dure room 


1 


f 






1 




Employee Dressing Rooms 














Male 


1' 




1 








Female 


f 




1 








Exam and treatment rooms 


1 












Housekeeping room^ 










1 





2010 CALIFORNIA PLUMBING CODE 



63 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



SPACE 


HANDWASHING 
FIXTURE 


SCRUB 
SINKS 


TOILETS 


BATHTUBS 

OR 
SHOWERS 


SERVICE 
SINKS^ 


CLINIC 
SINKS 


Intensive Care Units^ 












1 


Open plan 


1:3 beds 












Patient rooms^^ 


1 












Staff lounge 


f 




1 








Newborn Intensive Care Unit (NICU) 


1.4 bassinets^ ^ 










1 


Control station 


1 












Staff lounge 


f 




1 








Laboratories 


1^' 








1 




Laundry 














Soiled linen 


1 












Medicine preparation rooms or station 


I 












Morgue and Autopsy 


I 








1 




Nourishment area 


f 








1 




Nuclear Medicine 














Procedure room 


1 












Mold room 


1 












Radiotherapy 














Reception/waiting area 


1' 




1 








Nursing Service Space 














Administrative center or nurse station 


1 




1 








Examination or treatment room 


1 












Patient room 


1 












Patient toilet and bath facilities'^ 


f 




1:4 beds 


1:12^' 






Multi-purpose rooms 






1' 








Central bathing facility 






1 








Staff toilet room 


1' 




1 








Medicine preparation room 


1 












Nourishment area 


f 








1 




Nurses' Stations^^ or Administration Center 


I 












Nurseries 














Well Newborn 


1:6 bassinets 












Exam/Workrooms 


1 












Outpatient service space 






1 








Outpatient surgery 




1 










Endoscopy examination room 


1 












Pediatric and Adolescent Unit 














Patient room 


1 




1 








Play areas toilet room 


1 




1 








Central bathing toilet room 


1 




1 








Pharmacy 


f' 




1 








Postanesthesia care units (PACU) 


1 










1 


Protective environment room 


2' 




1' 


1' 






Psychiatric Nursing Unit 














Patient room 


1 












Patient toilet and bath facilities'^ 


1' 




1 


1:12^' 






Radiological/Imaging Services Space 


1 












Computerized tomography (CT) 


1 




j29 








Ultrasoimd 


1 




J 29, 30 








Angiography 


1 


j4,3I 


j29 









64 



2010 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



SPACE 


HANDWASHING 
FIXTURE 


SCRUB 
SINKS 


TOILETS 


BATHTUBS 

OR 
SHOWERS 


SERVICE 
SINKS^ 


CLINIC 
SINKS 


Fluoroscopy^ 


I 




1 








Patient toilet 


}' 




1 








Stafftoilets 


I' 




jl8 








Rehabilitation Therapy Space 














Patient Waiting area 














Male toilet room 


f 




1 








Female toilet room 


1' 




1 








Training toilet 






1 








Physical therapy service space 


I 












Occupational therapy sei-vice space 


1 












Speech pathology 


1 












Renal Dialysis Service Space 


1:4 stations 










1 


Bloodborne Infection Isolation Room 


1 












Nurses' station 


1 












Medication dispensing 


1 












Home training room 


1 












Repair room 


1 








1 




Patient toilet 


1 




1 








Staff lounge 


1 




1 


1 shower 






Waiting room toilet 


I 




1 








Surgical Service Space 




2' 










Staff clothing change areas 














Male 


f 




1 


1 shower 






Female 


]' 




1 


1 shower 






Clean-up rooms 


1 












Substerile area 


I 












Anesthesia workroom 


1' 












Soiled workroom or soiled holding 


1 










1 


Utility Room 














Clean^^ 


1 












Soiled^^ 


1 










jl4 


OSHPD 2 














Skilled Nursing or Intermediate Care Facilities 














Nurses' Station 


1 












Utility room 


1 












Clean 


1'' 












Soiled 


P' 










jl4 


1 Patient beds 


1:8'' 




1:6 


1:20 






Administration space -public toilets 






1 








Employee lockers 














Male 


f 




1 








Female 


1' 




1 








Outpatient waiting room toilet room 


f 




1 








Laundfy 


1 












Dietetic service space 














Kitchen 


1 












Food serving area 


1 












Employee washroom 


1 












Airborne infection isolation room^ 


1 




1' 


1' 







2010 CALIFORNIA PLUMBING CODE 



65 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



SPACE 


HANDWASHING 
FIXTURE 


SCRUB 
SINKS 


TOILETS 


BATHTUBS 

OR 
SHOWERS 


SERVICE 
SINKS' 


CLINIC 
SINKS 


Protective environment room^ 


1' 




1' 


1' 






Medicine rooms^^ 


1' 












Optional services 


1'' 












Physical therapy 


1 




1 








Occupational therapy 


1 




1 








Speech pathology/Audiology 


1 












Housekeeping room 


1 








1 




OSHPD 3 














Licensed Clinics and any freestanding building 
under a hospital license where outpatient clinical 
services are provided 














Examination and treatment rooms 


1 












Primary care clinic 










1 




Utility room 


1^' 












Birthing Clinic 


1 








1 




Clean-up room 


I 












Birthing room toilet room 


i' 




1 








Shower 








1 






Housekeeping room 










1 




Surgery Clinic 




2' 






1 




Clean-up room 


1 












Outpatient changing 


1' 




1 








Postanesthesia recovery 


1 












Housekeeping room 










1 




Nurses 'control area 


1 












Staff clothing area 














Male 


1 




1 








Female 


1 




1 








Chronic Dialysis 










1 




Nurse station 


1:8 patients 












Patient toilet room 


f 




j23 








Stafflockers 


p 




1 








Bloodborne infection isolation room 


f 




1' 


1' 






Utility room 


1 






1 






Home training 


1 












Rehabilitation Clinics 














Physical therapy space 


1 












Occupational therapy 


1 












Speech pathology/Audiology^ 


1 








1 




Housekeeping room 










1 




OSHPD 4^^ 














Correctional Treatment Centers^ 














Nurses 'station 


1 












Utility Room 


1 












Clean 


f' 












Soiled 


p' 












Patient beds 


1:8' 




1:6 


1:12 






Employee dressing rooms 














Male 


f 




1 








Female 


f 




1 









66 



2010 CALIFORNIA PLUMBING CODE 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



SPACE 


HANDWASHING 
FIXTURE 


SCRUB 
SINKS 


TOILETS 


BATHTUBS 

OR 
SHOWERS 


SERVICE 
SINKS' 


CLINIC 
SINKS 


Outpatient services 






1 








Airborne infection isolation room^ 


1' 




1' 


1' 






Protective environment room^ 


1' 




]' 


1' 






Medicine rooms^^ 


1^' 












Treatment and Exam Rooms 


1 












Toilets 














Patient^^ 


1:8' 




1:6 


1:12 






Staff 


f 




1 








Employee dressing rooms and lockers 














Male 


f 




1 








Female 


f 




1 








Outpatient services 














Waiting area 


f 




1 








Housekeeping room 












1 


Soiled utility room 


1 












Pharmacy 


1 













II 



II 



1 Each department or nursing unit shall be served by a housekeeping room equipped with a service sink. Departments may share service closets provided the de- 
partmental services are compatible. A dedicated housekeeping room shall be provided for the following services: ICU, NICU, nursery, dietary, renal dialysis and 
outpatient surgery. 

2 Conventional spouts and controls on hot-and cold-water supplies are acceptable. Aerators are not permitted. Non-aerating laminar flow devices are permitted. 
Nourishment areas shall have a handwashing fixture in or immediately accessible from the nourishment area. 

3 A minimum of two scrub sinks shall be provided in a surgical unit containing one operating room. Four scrub sinks shall be provided in surgical units contain- 
ing two operating rooms. One additional scrub sink shall be provided per each additional operating room. 

4 The scrub sink is in addition to the required number for surgeries. 

5 The following fixtures shall be provided in airborne infection or protective environment rooms of hospitals only: 

a. Within an adjoining toilet room, a lavatory, a shower containing a seat or a space for a shower chair, and toilet equipped with bedpan flushing attachment 
with a vacuum breaker. 

b. A handwashing fixture within a separate anteroom. 

Exceptions: 1. Chemical dependency recovery hospitals. 2. In emergency department, separate toilet/shower not required. 

6 The following fixtures shall be provided in isolation rooms of correctional treatment centers only: 

a. Within an adjoining toilet area, a handwashing fixture, a shower containing a seat or a space for a shower chair, and water closet equipped with bedpan 
flushing attachment with a vacuum breaker 

b. A handwashing fixture within a separate anteroom. 

7 Includes burn center spaces, acute respiratory-care service spaces, and coronary-care service spaces. 

8 A toilet room with handwashing fixture shall adjoin each fluoroscopy room. 

9 One toilet with lavatory and one shower may serve two labor rooms. 

10 One additional scrub sink per cesarean or delivery operating room. 

11 Provide emergency eye-wash and shower 

12 Handwashing fixtures shall be located in convenient locations throughout the space. 

13 Fixtures serving individual patient rooms shall not be considered as meeting the required ratios for bedrooms not served by individual adjoining toilet or bath- 
rooms. 

14 The clinic sink may be deleted if all bedrooms in the nursing unit are provided wdth adjoining toilets with bedpan flushing devices. 

15 Conventional controls on hot-and cold-water supplies are acceptable. The water discharge points shall be 5 inches (127 millimeters) above the fixture rim. Aer- 
ators are not permitted. Non-aerating laminar flow devices are permitted. 

16 A minimum of one bathtub is reqidred on each floor of an acute care or acute psychiatric hospital providing skilled nursing or intermediate care services. 

17 In a multiple-bed room, every bed position shall be within 20 feet (6 meters) of a hands free handwashing fixture. Where an individual room concept is used, a 
handwashing fixture shall be provided within each infant care room. 

18 When three or more procedure rooms are provided. 

19 If a separate medicine room is provided, the room shall be equipped with a sink in addition to the nurses' station handwashing fixture. Hot-water supplies are 
optional 

20 Chemical dependency recovery hospitals are only required to provide handwashing fixtures for exam rooms and kitchens. All other fixtures may be equipped per 
Footnote 2. 

21 Handwashing fixtures may be deleted if room is storage and holding only. 

22 Handwashing fixtures may be deleted if room is temporaiy holding of soiled materials. 

23 Toilet shall be equipped with a bedpan flushing attachment. 

24 Optional services approved by the licensing agency shall comply with the applicable space requirements ofOSHPD 1 and 2. 

25 Shall be provided in each separate room where open medication is handled. 

26 Conveniently accessible throughout the unit. 

27 Includes rooms or areas within coronary and intensive-care units and postanethesia recovery rooms. 

28 Modular toilet/sink combination units located within a privacy curtain may be used within each patient space or private room. The toilet fixture shall be com- 
pletely contained within cabinetry when not in use. 

29 Toilet room facilities located adjacent to or in the immediate vicinity are adequate. 

30 Toilet room shall be accessible from the procedure room. 

31 Scrub sink shall be located outside the staff entrance to the procedure room. 

32 Lavatories shall be equipped with gooseneck spouts without aerators and may have conventional controls. 



2010 CALIFORNIA PLUMBING CODE 



67 



PLUMBING FIXTURES AND FIXTURE FITTINGS 



TABLE 4-3 



TYPE OF BUILDING 
OR OCCUPANCY 


WATER CLOSETS 
(FIXTURES PER PERSON) 


URINALS (TROUGH URINAL 

TO INDIVIDUAL 

URINAL EQUIVALENCE) 

MALE 


LAVATORIES 

(FIXTURES 

PER PERSON) 


BATHTUBS OR SHOWERS 
FIXTURES PER PERSON)^ 


DRINKING 

FOUNTAINS 

(FIXTURES 

PER PERSON)^ 


MALE FEMALE 


Nonindustrial— office 
buildings, public build- 
ings and similar estab- 
lishments 


1 1-15 1 1-15 

2 16-35 2 16-35 

3 36-55 3 36-55 

4 56-80 4 56-80 

5 81-110 5 81-110 

6 111-150 6 111-150 
1 additional for each ad- 
ditional 40 employees or 
fraction thereof 


Length of Number of 

trough urinal individual 

urinals 

24" (610 mm) 1 
36" (914 mm) 2 
48" (1219 mm) 2 
60" (1524 mm) 3 


1 1-15 

2 16-35 

3 36-60 

4 61-90 

5 91-125 

1 additional for each 
additional 4 employ- 
ees or fraction thereof 


1:10 persons per shift 
required to shower 




Industrial-factories, 
warehouses, loft build- 
ings and similar estab- 
lishments 


1 1-15 1 1-15 

2 16-35 2 16-35 

3 36-55 3 36-55 

4 56-80 4 56-80 

5 81-110 5 81-110 

6 111-150 6 111-150 
1 additional for each 
additional 40 employees 
or fraction thereof 


24" (610 mm) 1 
36" (914 mm) 2 
48" (1219 mm) 2 
60" (1524 mm) 3 
72" (1829 mm) 4 


1 to 100 
employees 
1 per 10 

Over 100 employees 1 
additional for each 
additional 15 employ- 
ees or fraction thereof 


1:10 persons per shift 
required to shower 





1 The figures shown are based on one fixture being the minimum required for the number of persons indicated or anyfi'action thereof 

2 Each water closet shall occupy a separate compartment which shall be equipped with a door, door latch and clothes hook. The door and the walls or partitions between 
fixtures shall be sufficient to assure privacy. 

3 Drinking fountains shall not be located in toilet rooms. 

4 Washing facilities shall be reasonably accessible to all employees. 

5 Toilet facilities shall be accessible to the employees at all times. Where practicable, toilet facilities should be within 200 feet (61 m) of locations at which workers are reg- 
ularly employed and should not be more than one floor-to-floor flight of stairs from working areas. 

6 Urinals may be installed instead of water closets in toilet rooms to be used only by men provided that the number of water closets shall not be less than two thirds of the 
minimum number of toilet facilities specified. The length of trough urinals to the equivalent number of individual urinals shall be based on the above table. 

7 When there are less than five employees, separate toilet rooms for each sex are not required provided toilet rooms can be locked from the inside and contain at least one 
water closet 

8 Twenty-four linear inches of wash sink or 18 inches of circular basin, when provided with water outlets for such space, shall be considered equivalent to one lavatory. 
Exception: The requirements of Table 4-3 do not apply to mobile crews or to normally unattended work locations provided employees at these locations have immedi- 
ately available transportation to nearby toilet facilities which meet the requirements of Table 4-3. 



TABLE 4-4 



TYPE OF BUILDING 
OR OCCUPANCY^ 


WATER CLOSETS 
(FIXTURES PER PERSON) 


URINALS 
(FIXTURES PER MALE) 


LAVATORIES 
(FIXTURES PER PERSON) 


BATHTUBS OR SHOWERS 
(FIXTURES PER PERSON) 


DRINKING FOUNTAINS 
(FIXTURES PER PERSON) 


Day Use Public 
Beaches^'^ 


Male Female 
1 1-100 1 1-100 
No sex designated 
1 1-500 
Minimum of 2 


May be substituted for 
up to two-thirds of the 
water closets required 








Picnic Areas 


Male Female 
11-50 1 1-50 










Overnight Use 
Public Beaches^ 


1 1-7.5 campsites^ 
1 1-7.5 campsites^ 


May be substituted for 
up to one-third of the 
water closets required 




1 1-12.5 campsites'^ 




Organized Camps 


1 1-15^ 




1 1-15 


1 1-156 


Minimum 1 per camp 



1 Toilets shall be located in accordance with actual use patterns on the beach. The reasonable intent of the toilet requirements is that it should apply on the basis of aver- 
age daily use during periods of peak use. The health officer may determine how many days the population standard may be exceeded. 

2 Laundry facilities are not required, but if they are provided, must be a minimum of two laundry trays or a washing machine. 

3 Toilet facilities shall not be farther than 400 feet from any lot or campsite. 

4 Showers are not required, but it provided, they shall be provided on the indicated ratio. Outdoor rinse-off showers may be cold water only. 

5 Toilets shall be located within 300 feet from the living accommodations they serve. 

6 Showers shall be provided in the living area or in a centrally located structure. 
Exception: Intermittent short-term organized camps are not required to provide shower facilities, but it provided, they shall comply with this part 



68 



2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 5 -WATER HEATERS 



Adopting Agency 


BSC 


SFM 


HOD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


SS 


SS/CC 


1 


2 


3 


4 












Adopt Entire Chapter 


X 












X 


X 


X 


X 


X 


X 












Adopt Entire Chapter as 
amended (amended sections 
listed below) 




X 


X 


X 




























Adopt only those sections 
that are listed below 




































Chapter/Section 


508.2 




X 


X 


X 





























2010 CALIFORNIA PLUMBING CODE 



69 



70 2010 CALIFORNIA PLUMBING CODE 



CHAPTER 5 
WATER HEATERS 



Parti 

501.0 General. 

The regulations of this chapter shall govern the construction, 
location, and installation of fuel-burning and other water 
heaters heating potable water, together with chimneys, vents, 
and their connectors. The minimum capacity for water heaters 
shall be in accordance with the first hour rating listed in Table 
5-1. Design, construction, and workmanship shall be in con- 
formity with accepted engineering practices, manufacturer's 
installation instructions, and applicable standards and shall 
be of such character as to secure the results sought to be ob- 
tained by this code. No water heater shall be hereinafter in- 
stalled that does not comply in all respects with the type and 
model of each size thereof approved by the Authority Having 
I Jurisdiction. A list of accepted gas appliance standards are in- 
cluded in Table 14-1. 



502.0 Definitions. 

502.1 Appliance Categorized Vent Diameter/Area. The 

minimum vent area/diameter permissible for Category I ap- 
pliances to maintain a nonpositive vent static pressure when 
tested in accordance with nationally recognized standards. 

[NFPA 54:3.3.7] 

502.2 Chimney (See also Gas Vent, and Venting System). 
One (1) or more passageways, vertical or nearly so, for con- 
veying flue or vent gases to the outside atmosphere. [NFPA 
54:3.3.17] 

502.3 Chimney, Factory-Built. A chimney composed of 
listed factory-built components assembled in accordance with 
the terms of listing to form the completed chimney. P^FPA 
54:3.3.17.2] 

502.4 Chimney, Masonry. A field-constructed chimney of 
solid masonry units, bricks, stones, listed masonry chimney 
units, or reinforced portland cement concrete, lined with suit- 
able chimney flue liners, [NFPA 54:3.3.17.3] 

502.5 Chimney, Metal. A field-constructed chimney of 
metal. [NFPA 54:3.3. 17.4] 

502.6 Combustible Material. As pertaining to materials ad- 
jacent to or in contact with heat-producing appliances, vent 
connectors, gas vents, chimneys, steam and hot water pipes, 
and warm air ducts, shall mean materials made of or surfaced 



with wood, compressed paper, plant fibers, or other materials 
that are capable of being ignited and burned. Such material 
shall be considered combustible even though flame-proofed, 
fire-retardant treated, or plastered. [NFPA 54:3.3.65.1] 

502.7 Direct-Vent Appliances. Appliances that are con- 
structed and installed so that air for combustion is derived di- 
rectly from the outside atmosphere and all flue gases are 
discharged to the outside atmosphere. [NFPA 54:3.3.6.3] 

502.8 Flue Collar. That portion of an appliance designed for 
the attachment of a draft hood, vent connector, or venting sys- 
tem. [NFPA 54:3.3.45] 

502.9 Gas Vent, Type B. A vent for venting-listed gas appli- 
ances with draft hoods and other Category I appliances listed 
for use with Type B gas vents. [NFPA 54:3.3.105.2.2] 

502.10 Gas Vent, Type L. A vent for venting appliances 
Hsted for use with Type L vents and appliances listed for use 
with Type B gas vents. [NFPA 54:3.3.105.2.4] 

502.11 Indirect-Fired Water Heater. A water heater con- 
sisting of a storage tank equipped with an internal or external 
heat exchanger used to transfer heat fi-om an external source 
to heat potable water. The storage tank either contains heated 
potable water or water supplied from an external source, such 
as a boiler. 

502.12 Vent. A passageway used to convey flue gases from 
the gas utilization appliances or their vent connectors to the | 
outside atmosphere. [NFPA 54:3.3.103] 

502.13 Vent Connector. The pipe or duct that connects a 
fuel-gas-buming appliance to a vent or chimney. [NFPA 
54:3.3.106] 

502.14 Venting System. A continuous open passageway from 
the flue collar or draft hood of a gas-burning appliance to the 
outside atmosphere for the purpose of removing flue or vent 
gases. [NFPA 54:3.3.96.6] 

502.15 Water Heater. An appliance for supplying hot water 
for domestic or commercial purposes. [NFPA 54:3.3.55.7] 

503.0 Permits. 

It shall be unlawftal for any person to install, remove, or re- 
place or cause to be installed, removed, or replaced any water 
heater without first obtaining a permit from the Authority 
Having Jurisdiction to do so. 



TABLE 5-r 
FIRST HOUR RATING 



Number of Bathrooms 


1 to 1.5 


2 to 2.5 


3 to 3.5 


Number of Bedrooms 


1 


2 


3 


2 


3 


4 


5 


3 


4 


5 


6 


First Hour Rating,^ Gallons 


42 


54 


54 


54 


67 


67 


80 


67 


80 


80 


80 



Note: 

1 The first hour rating is found on the "Energy Guide" label. 

^ Non-storage and solar water heaters shall be sized to meet the appropriate first hour rating as shown in the table. 



2010 CALIFORNIA PLUMBING CODE 



71 



WATER HEATERS 



504.0 Inspection. 

504.1 Inspection of Ciiimneys or Vents. This inspection 
shall be made after all chimneys, vents, or parts thereof, au- 
thorized by the permit, have been installed and before any 
such vent or part thereof has been covered or concealed. 

504.2 Final Water Heater Inspection. This inspection shall 
be made after all work authorized by the permit has been in- 
stalled. The Authority Having Jurisdiction will make such in- 
spection as deemed necessary to be assured that the work has 
been installed in accordance with the intent of this code. No 

I appliance or part thereof shall be covered or concealed until 
the same has been inspected and approved by the Authority 
Having Jurisdiction. 

505.0 Water Heater Requirements. 

505.1 Location. Water heater installations in bedrooms and 
bathrooms shall comply with one of the following [NFPA 
54:10.28.1]: 

(1) Fuel-burning water heaters may be installed in a closet 
located in the bedroom or bathroom provided the closet 
is equipped with a listed, gasketed door assembly and a 
listed self-closing device. The self-closing door assembly 
shall meet the requirements of Section 505. 1 . 1 . The door 
assembly shall be installed with a threshold and bottom 
door seal and shall meet the requirements of Section 
505.1.2. All combustion air for such installations shall 
be obtained from the outdoors in accordance with Sec- 
tion 507.4. The closet shall be for the exclusive use of 
the water heater. 

(2) Water heater shall be of the direct vent type. [NFPA 
54:10.28.1(2)] 

505.1.1 Self-CIosing Doors. Self-closing doors shall 
swing easily and freely and shall be equipped with a self- 
closing device to cause the door to close and latch each 
time it is opened. The closing mechanism shall not have 
a hold-open feature. [NFPA 80:6.1.4.2] 

505.1.2 Gasketing. Gasketing on gasketed doors or 
frames shall be furnished only in accordance with the 
pubHshed listings of the door, frame, or gasketing mate- 
rial manufacturer. [NFPA 80:6.4.8] 

Exception: Where acceptable to the Authority Having 
Jurisdiction, gasketing of non-combustible or limited- 
combustible material (See NFPA 220, Standard on Types 
of Building Construction) shall be permitted to be ap- 
phed to the frame, provided closing and latching of the 
door are not inhibited. 

505.2 Water heaters of other than the direct-vent type shall 
be located as close as practical to the chimney or gas vent. 
[NFPA 54:9.28.1.2] 

505.3 Clearance. 

505.3.1 The clearances shall not be such as to interfere 
with combustion air, draft hood clearance and relief, and 
accessibility for servicing. Listed water heaters shall be 
installed in accordance with their listings and the manu- 
facturer's instructions. [NFPA 54: 10.28.2. 1] 



505.3.2 Unlisted water heaters shall be installed with a 
clearance of twelve (12) inches (300 mm) on all sides 
and rear. Combustible floors under unlisted water heaters 
shall be protected in an approved manner. [NFPA 
54:10.28.2.2] 

505.4 Pressure-Limiting Devices. A water heater installa- 
tion shall be provided with overpressure protection by means 
of an approved, listed device, installed in accordance with the 
terms of its listing and the manufacturer's instructions. [NFPA 
54:10.28.3] 

505.5 Temperature-Limiting Devices. A water heater in- 
stallation or a hot water storage vessel installation shall be 
provided with over temperature protection by means of an ap- 
proved, listed device installed in accordance with the terms of 
its listing and the manufacturer's instructions. [NFPA 
54:10.28.4] 

505.6 Temperature, Pressure, and Vacuum Relief Devices. 

The installation of temperature, pressure, and vacuum relief 
devices or combinations thereof, and automatic gas shutoff 
devices, shall be installed in accordance with the terms of 
their listings and the manufacturer's instructions. A shutoff 
valve shall not be placed between the relief valve and the 
water heater or on discharge pipes between such valves and 
the atmosphere. The hourly Btu discharge capacity or the 
rated steam relief capacity of the device shall be not less than 
the input rating of the water heater. [NFPA 54:10.28.5] 

506.0 Oil-Burning and Other Water Heaters. 

506.1 Water heaters deriving heat from fuels or types of energy 
other than gas shall be constructed and installed in accordance 
with approved standards. Vents or chimneys for such appli- 
ances shall be approved types. An adequate supply of air for 
combustion and for adequate ventilation of heater rooms or 
compartments shall be provided. Each such appliance shall be 
installed in a location approved by the Authority Having Ju- 
risdiction and local and state fire-prevention agencies. 

506.2 Storage-type water heaters and hot water boilers de- 
riving heat from fuels or types of energy other than gas, shall 
be provided with, in addition to the primary temperature con- 
trols, an over temperature safety protection device con- 
structed, listed, and installed in accordance with nationally 
recognized applicable standards for such devices and a com- 
bination temperature and pressure-relief valve. 

506.3 Oil-fired water heaters shall be installed in accordance 
with NFPA 31, Standard for the Installation of Oil-Burning 
Equipment, 

506.4 Indirect-Fired Water Heaters. 

506.4.1 Indirect- fired water heaters shall conform to ap- 
plicable sections of the ASME Boiler and Pressure Ves- 
sel Code, or to one (1) of the other apphcable standards 
shown in Table 14-1 . Each water heater shall bear a label 
in accordance with ASME requirements, or an approved 
testing agency, certifying and attesting that such an ap- 1 
pliance has been tested, inspected and meets the require- 1 
ments of the applicable standards or code. 



72 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



506.4.2 Indirect-fired water heater that incorporate a sin- 
gle-wall heat exchanger shall meet all of the following 
requirements: 

(1) Connected to a low-pressure hot water boiler lim- 
ited to a maximum of thirty (30) psig by an approved 
safety or relief valve. 

(2) Heater transfer medium is either potable water or 
contains fluids having a toxicity rating or Class of 1 . 

(3) Bear a label with the word "Caution," followed by 
the following statements: 

(a) The heat-transfer medium must be water or 
other nontoxic fluid having a toxic rating or 
Class of 1 as listed in Clinical Toxicology of 
Commercial Products, 5th edition. 

(b) The pressure of the heat-transfer medium must 
be limited to a maximum of thirty (30) psig 
(207 kPa) by an approved safety or relief valve. 

Note: The word "Caution" and the statements 
in letters having an uppercase height of not less 
than 0.120 of an inch (3.0 mm). The vertical 
spacing between lines of type shall be not less 
than 0.046 of an inch (1.2 mm). Lowercase let- 
ters shall be compatible with the uppercase let- 
ter size specification. 

507.0 Air for Combustion and Ventilation. 

507.1 General. 

507.1.1 Air for combustion, ventilation, and dilution of 
I flue gases for gas utilization appliances installed in build- 
ings shall be obtained by application of one (1) of the 
methods covered in Sections 507.2.1 through 507.7. Gas 
I utilization appliances of other than natural draft and Cat- 
egory I vented appliances shall be provided with com- 
bustion, ventilation, and dilution air in accordance with 
I the appliance manufacturer's instructions. Where infil- 
tration does not provide the necessary air, outdoor air 
shall be introduced in accordance with methods covered 
in Sections 507.4 through 507.7. [NFPA 54:9.3.1.1] 

Exceptions: 

(1) This provision shall not apply to direct-vent appli- 
ances. 

(2) Type 1 clothes dryers that are provided with make- 
up air in accordance with section NFPA 54: 10.4.3. 

507.1.1.1 Clothes Dryer. A device used to dry wet 
laundry by means of heat derived from the combus- 
tion of fuel gases. [NFPA 54:3.3.18] 

507.1.1.2 Clothes Dryer, Type 1. Primarily used in 
family living environment. May or may not be coin- 
operated for public use. [NFPA 54:3.3. 1 8.1] 

507.1.1.3 Exhausting to the Outdoors. Type 1 and 
Type 2 clothes dryers shall be exhausted to the out- 
side air. [NFPA 54: 10.4.2] 

507.1.1.4 Provisions for Make-Up Air. Make-up 
air shall be provided for Type 1 clothes dryers in ac- 
cordance with the manufacturer's installation in- 
structions. [NFPA 54:10.4.3.1] 



507.1.2 Gas appliances of other than natural draft design 
and other than Category I vented appliances shall be pro- 
vided with combustion, ventilation, and dilution air in 
accordance with the appliance manufacturer's instruc- 
tions. [NFPA 54:9.3. 1.2] 

507.1.3 Where used, a draft hood or a barometric draft 
regulator shall be installed in the same room or enclo- 
sure as the appliance served so as to prevent any differ- 1 
ence in pressure between the hood or regulator and the 
combustion air supply. [NFPA 54:9.3.1.4] 

507.1.4 Makeup air requirements for the operation of ex- 
haust fans, kitchen ventilation systems, clothes dryers, 
and fireplaces shall be considered in determining the ad- 
equacy of a space to provide combustion air require- 
ments. [NFPA 54:9.3.1.5] 

507.2 Indoor Combustion Air. The required volume of in- 
door air shall be determined in accordance with Sections 
507.2. 1 or 507.2.2 except that where the air infiltration rate is 
known to be less than 0.40 ACH, Section 507.2.2 shall be 
used. The total required volume shall be the sum of the re- 
quired volume calculated for all appliances located within the 
space. Rooms communicating directly with the space in 
which the appliances are installed through openings not fur- 
nished with doors, and through combustion air openings sized 
and located in accordance with Section 507.3 are considered 
a part of the required volume. [NFPA 54:9.3.2] 

507.2.1 Standard Method. The required volume shall 
be not less than fifty (50) cubic feet per 1,000 Btu/hour 
(4.8 mVkW). [NFPA 54:9.3.2.1] 

507.2.2 Known Air Infiltration Rate Method, Where 

the air infiltration rate of a structure is known, the mini- 
mum required volume shall be determined as follows 
[NFPA 54:9.3.2.2]: 

(1) For appliances having other than fan-assisted, com- 
bustion systems: calculate using Equation 5-1 but 
not less than thirty-five (35) cubic feet per 1,000 
Btu/hour (3.4 mVkW). [NFPA 54:9.3.2.2(1)] 

(2) For fan-assisted combustion system appliances, cal- 
culate using Equation 5-2 but not less than twenty- 
five (25) cubic feet per 1,000 Btu/hour (2.4 m^/kW). 
[NFPA 54:9.3.2.2(2)] 

Equation 5-1: 

Required volume ^^^^^ > (21 ft^ /ACH) x (/^^;^^/l,000 
Btu/h) 

Equation 5-2: 

Required volume fy^^ > (15 ft^ /ACH) x (7^^^/1,000 
Btu/h) 



where: 
^other 



= All appliances other than fan-assisted input in 
Btu/hour 

^fan ^ Fan-assisted appliance input in Btu/hour 
ACH= Air change per hour (Percent of volume of 
space exchanged per hour, expressed as a deci- 
mal) 



2010 CALIFORNIA PLUMBING CODE 



73 



WATER HEATERS 



507.3 Indoor Opening Size and Location. Openings used 
to connect indoor spaces shall be sized and located in accor- 
dance with the following [NFPA 54:9.3.2.3]: 

(1) Combining spaces on the same story. Each opening shall 
have a free area of not less than one (1) square inch 
71,000 Btu/h (2,200 mmVkW) of the total input rating of 

I all gas utilization appliances in the space, but not less 
than one-hundred (100) square inches (0.06 m^). One (1) 
opening shall commence within twelve (12) inches (300 
mm) of the top, and one (1) opening shall commence 
within twelve (12) inches (300 mm) of the bottom of the 

I enclosure [see Figure 5-7]. The dimension of air open- 
ings shall be not less than three (3) inches (80 mm). 
[NFPA 54:9.3.2.3(1)] 

(2) Combining spaces in different stories. The volumes of 
spaces in different stories shall be considered as com- 
municating spaces where such spaces are connected by 
one (1) or more openings in doors or floors having a total 
free area of not less than two (2) square inches/ 1,000 
Btu/h (4,400 mmVkW) of total input rating of all gas uti- 

I lization appliances. [NFPA 54:9.3.2.3(2)] 

507.4 Outdoor Combustion Air. Outdoor combustion air 
shall be provided through opening(s) to the outdoors in ac- 
cordance with methods Sections 507.4.1 or 507.4.2. The di- 
mension of air openings shall be not less than three (3) inches 
(80 mm). [NFPA 54:9.3.3] 

507.4.1 Two Permanent Openings Method. Two (2) 

permanent openings, one (1) commencing within twelve 
(12) inches (300 mm) of the top and one (1) commenc- 
ing within twelve (12) inches (300 mm) of the bottom of 
the enclosure shall be provided. The openings shall com- 
municate directly, or by ducts, with the outdoors or 
spaces that freely communicate with the outdoors as fol- 
lows [NFPA 54:9.3.3.1]: 

( 1 ) Where directly communicating with the outdoors or 
where communicating to the outdoors through ver- 
tical ducts, each opening shall have a free area of not 
less than one (1) square inch/4000 Btu/h (550 

I mm^/kW) of total input rating of all appliances in 

the enclosure (See Figures 5-8 and 5-9). [NFPA 
54:9.3.3.1(1)] 

(2) Where communicating with the outdoors through 
horizontal ducts, each opening shall have a free area 
of not less than one (1) square inch/2,000 Btu/h 

1(1,100 mmVkW) of total input rating of all appli- 
ances in the enclosure (See Figure 5-10). [NFPA 
54:9.3.3.1(2)] 

507.4.2 One Permanent Opening Method. One ( 1 ) per- 
manent opening, commencing within twelve (12) inches 
(300 mm) of the top of the enclosure, shall be provided. 

I The appliance shall have clearances of not less than one 
(1) inch (25 mm) from the sides and back and six (6) 
inches (160 mm) from the front of the appliance. The 
opening shall directly communicate with the outdoors or 
shall communicate through a vertical or horizontal duct to 
the outdoors or spaces that freely communicate with the 



outdoors [see Figure 5-11] and shall have a minimum free 
area of the following [NFPA 54:9.3.3.2]: 

(1) One (1) square inch/3,000 Btu/h (700 mmVkW) of 
the total input rating of all appliances located in the | 
enclosure, and [NFPA 54:9.3.3.2(1)] 

(2) Not less than the sum of the areas of all vent con- 
nectors in the space. [NFPA 54:9.3.3.2(2)] 

507.5 Combination Indoor and Outdoor Combustion Air. 

The use of a combination of indoor and outdoor combustion 
air shall be in accordance with Sections 507.5.1, 507.5.2 and 
507.5.3 (See example calculation in NFPA 54, National Fuel 
Gas Code, Annex J and this chapter - Part II). [NFPA 54:9.3.4] 

507.5.1 Indoor Openings. Where used, openings con- 
necting the interior spaces shall comply with Section 
507.3. [NFPA 54:9.3.4(1)] 

507.5.2 Outdoor openings shall be located in accordance 
with Sections 507.4.1 or 507.4.2. [NFPA 54:9.3.4(2)] 

507.5.3 Outdoor Openings Size. The outdoor openings 
size shall be calculated in accordance with the following 
[NFPA 54:9.3.4(3)]: 

(1) The ratio of interior spaces shall be the available vol- 
ume of communicating spaces divided by the re- 
quired volume. 

(2) The outdoor size reduction factor shall be one (1) 
minus the ratio of interior spaces. 

(3) The minimum size of outdoor openings shall be the 
full size of outdoor openings calculated in accor- 
dance with Sections 507.4.1 or 507.4.2, multiplied 
by the reduction factor. The dimension of air open- 
ings shall be not less than three (3) inches (80 mm). 
[NFPA54:9.3.4(3)(c)] 

507.6 Engineered Installations. Engineered combustion air 
installations shall provide an adequate supply of combustion, 
ventilation, and dilution air and shall be approved by the Au- 
thority Having Jurisdiction. [NFPA 54:9.3.5] 

507.7 Mechanical Combustion Air Supply. Where com- 
bustion air is provided by a mechanical air supply system, the 
combustion air shall be supplied from outdoors at the mini- 
mum rate of 0.35 cubic feet/min per 1,000 Btu/h (0.034 
m^/min per kW) for appliances located within the space. 
[NFPA 54:9.3.6] 

507.7.1 Where exhaust fans are installed, additional air 
shall be provided to replace the exhausted air. [NFPA 
54:9.3.6.1] 

507.7.2 Each of the appHances served shall be inter- 
locked to the mechanical air supply system to prevent 
main burner operation where the mechanical air supply 
system is not in operation. [NFPA 54:9.3.6.2] 

507.7.3 Where combustion air is provided by the build- 
ing's mechanical ventilation system, the system shall pro- 
vide the specified combustion air rate in addition to the 
required ventilation air. [NFPA 54:9.3.6.3] 

507.8 Louvers, Grilles, and Screens. 

(A) Louvers and Grilles. The required size of openings for 
combustion, ventilation, and dilution air shall be based 



74 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



on the net free area of each opening. Where the free area 
through a design of louver or grille is known, it shall be 
used in calculating the size opening required to provide 
the free area specified. Where the design and free area 
are not known, it shall be assumed that wood louvers will 
have 25 percent free area and metal louvers and grilles 
will have 75 percent free area. Nonmotorized louvers and 
grilles shall be fixed in the open position. [NFPA 
54:9.3.7.1] 

(B) Minimum Screen Mesh Size. Screens shall be not less 
than one-fourth (Va) inch mesh. [NFPA 54:9.3.7.2] 

1(C) Motorized louvers shall be interlocked with the appli- 
ance so they are proven in the full open position prior to 
main burner ignition and during main burner operation. 
Means shall be provided to prevent the main burner from 
igniting should the louver fail to open during burner start- 
up and to shut down the main burner if the louvers close 
during burner operation. [NFPA 54:9.3.7.3] 

507.9 Combustion Air Ducts. Combustion air ducts shall 
comply with the following: 

(1) Ducts shall be of galvanized steel or a material having 
equivalent corrosion resistance, strength, and rigidity. 
[NFPA 54:9.3.8.1] 

Exception: Within dwelling units, unobstructed stud and 
joist spaces shall not be prohibited from conveying com- 
bustion air, provided that not more than one (1) fireblock 
is removed. 

(2) Ducts shall terminate in an unobstructed space, allowing 
free movement of combustion air to the appliances. 
[NFPA 54:9.3.8.2] 

(3) Ducts shall serve a single space. [NFPA 54:9.3.8.3] 

(4) Ducts shall not service both upper and lower combustion 
air openings where both such openings are used. The sep- 
aration between ducts serving upper and lower combus- 
tion air openings shall be maintained to the source of 
combustion air. [NFPA 54:9.3.8.4] 

(5) Ducts shall not be screened where terminating in an attic 
space. [NFPA 54:9.3.8.5] 

(6) Intakes for combustion air ducts located exterior to the 
building shall have the lowest side of the combustion air 
intake openings located at least twelve (12) inches (300 

I mm) vertically from the adjoining finished grade level. 

(7) Horizontal upper combustion air ducts shall not slope 
downward toward the source of combustion air. [NFPA 

54:9.3.8.6] 

(8) The remaining space surrounding a chimney liner, gas 
vent, special gas vent, or plastic piping installed within a 
masonry chimney flue, metal or factory-built chimney, 
shall not be used to supply combustion air [NFPA 
54:9.3.8.7], unless it is listed and shown in the manufac- 
turer's installation instructions. 

508.0 Other Water Heater Installation Requirements. 

508.1 The Authority Having Jurisdiction shall have the au- 
thority to require the use of an approved dielectric insulator 



on the water piping connections of water heaters and related 
water heating appliances. | 

508.2 Protection from Seismic Damage. Water heaters shall 
be anchored or strapped to resist horizontal displacement due 
to earthquake motion. Strapping shall be at points within the 
upper one third (^A) and lower one-third (%) of its vertical di- 
mensions. At the lower point, a minimum distance of four (4) 
inches (102 mm) shall be maintained above the controls with 
the strapping. 

Note: [HCD 1 & HCD 2] Reference Health and Safety Code 
Section 19211(a) which addresses new, replacement, and ex- 
isting water heaters. 

Note: The applicable subsection of Health and Safety Code \\ 
Section 19211(a) which addresses new, .replacement, and ex- 
isting water heaters is repeated here for clarity and reads as 
follows: 

Section 19211(a) Notwithstanding Section 19100, all new 
and replacement water heaters, and all existing residential 
water heaters shall be braced, anchored, or strapped to resist 
falling or horizontal displacement due to earthquake motion. 
At a minimum, any water heater shall be secured in accor- 
dance with the California Plumbing Code, or modifications 
made thereto by a city, county, or city and county pursuant to 
Section 17958.5. 

508.3 A water heater supported from the ground shall rest on 
level concrete or other approved base extending not less than 
three (3) inches (76 mm) above the adjoining ground level. 

508.4 When a water heater is located in an attic, attic-ceiling 
assembly, floor-ceiling assembly, or floor-subfloor assembly 
where damage results from a leaking water heater, a water- 
tight pan of corrosion-resistant materials shall be installed be- 
neath the water heater with not less than three-quarters QA) of 
an inch (20 mm) diameter drain to an approved location. 

508.5 Relief Valve Discharge. Discharge from a relief valve 
into a water heater pan shall be prohibited. 

508.6 Added or Converted Appliances. When an additional 
or replacement appliance is installed or an appliance is con- 
verted to gas from another fuel, the location in which the ap- 
pliance is to be operated shall be checked to verify the 
following [NFPA 54:9. 1.2]: 

508.6.1 Air for combustion and ventilation is provided 
where required, in accordance with the provisions of Sec- 
tion 507.0. Where existing facilities are not adequate, 
they shall be upgraded to Section 507.0 specifications. 
[NFPA 54:9. 1.2(1)] 

508.6.2 The installation components and appliances meet 
the clearances to combustible material provisions of 
NFPA 54:9.2.2. It shall be determined that the installation 
and operation of the additional or replacement appliance I 
does not render the remaining appliance unsafe for con- 1 
tinned operation. [NFPA 54:9.1.2(2)] 

(The following reference was extracted from NFPA 54, 
National Fuel Gas Code). 

9.2.2 Clearance to Combustible Materials. Appliances \ 
and their vent connectors shall be installed with clear- 
ances from combustible material so their operation will 



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not create a hazard to persons or property. Minimum 
clearances between combustible walls and the back and 
sides of various conventional types of appliances and 
their vent connectors are specified in Chapters 10 and 
12. (Reference can also be made to NFPA 211, Standard 
for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning 
Appliances.) 

508.6.3 The venting system is constructed and sized in 
accordance with the provisions of this chapter. Where the 
existing venting system is not adequate, it shall be up- 
graded to comply with this chapter. [NFPA 54:9.1.2(3)] 

508.7 Types of Gases. It shall be determined whether the gas- 

I utilization appliance has been designed for use with the gas to 
which it will be connected. No attempt shall be made to con- 

I vert the appliance from the gas specified on the rating plate 
for use with a different gas without consulting the installation 

I instructions, the serving gas supplier, or the appliance manu- 
facturer for complete instructions. [NFPA 54:9.1.3] 

1508.8 Safety Shutoff Devices for Unlisted LP-Gas Appli- 
ance Used Indoors. Unhsted gas utilization appliances for 
use with undiluted liquefied petroleum gases and installed in- 
doors shall be equipped with safety shutoff devices of the 
complete shutoff type. [NFPA 54:9.1.4] 

508.9 Use of Air or Oxygen Under Pressure. Where air or 

oxygen under pressure is used in connection with the gas sup- 
ply, effective means such as a back-pressure regulator and re- 
lief valve shall be provided to prevent air or oxygen from 
passing back into the gas piping. Where oxygen is used, in- 
stallation shall be in accordance with NFPA 51, Standard for 
the Design and Installation of Oxygen-Fuel Gas Systems for 
Welding, Cutting, and Allied Processes. [NFPA 54:9. 1.5] 

508.10 Protection of Gas Appliances from Fumes or Gases 
Other tiian Products of Combustion. Non-direct vent-type 
gas appliances installed in beauty shops, barbershops, or other 
facilities where chemicals that generate corrosive or flam- 
mable products such as aerosol sprays are routinely used shall 
be located in an equipment room separate or partitioned off 
from other areas with provisions for combustion and dilution 

I air from outdoors. Direct vent appliances shall be installed in 
accordance with the appliance manufacturer's installation in- 
structions. [NFPA 54:9. 1.6.2] 

508.11 Process Air. In addition to air needed for combustion 
in commercial or industrial processes, process air shall be pro- 
vided as required for cooling of equipment or material, con- 
trolling dew point, heating, drying, oxidation, dilution, safety 
exhaust, odor control, air for compressors, and for comfort 
and proper working conditions for personnel. [NFPA 
54:9.1.7] 

508.12 Building Structural Members. 

508.12.1 Structural members of a building shall not pass 
I through gas utilization appliances having an operating 

temperature exceeding 500^F (260°C). [NFPA 54:9.1.8.1] 

508.12.2 Structural members passing through gas uti- 
I lization appliances having an operating temperature of 

500°F (260°C) or less shall be of noncombustible mate- 
rial. Building columns, girders, beams, or trusses shall 



not be installed within appliances, unless insulation and | 
ventilation are provided to avoid deterioration in strength 
and linear expansion of the building structure in either a 
vertical or a horizontal direction. [NFPA 54:9.1.8.2] 

508.12.3 Gas utilization appliances shall be furnished ei- 1 
ther with load-distributing bases or with a sufficient num- 
ber of supports to prevent damage to either the building 
structure or appliance. [NFPA 54:9.1 .8.3] | 

508.12.4 At the locations selected for installation of the 
gas utilization appliance, the dynamic and static load- 1 
carrying capacities of the building structure shall be 
checked to determine whether they are adequate to carry 
the additional loads. The appliance shall be supported | 
and shall be connected to the piping so as not to exert 
undue stress on the connections. [NFPA 54:9.1.8.4] 

508.13 Flammable Vapors. Gas appUances shall not be in- 
stalled in areas where the open use, handling, or dispensing of 
flammable liquids occurs, unless the design, operation, or in- 
stallation reduces the potential of ignition of the flammable 
vapors. Gas utilization appliances installed in compliance | 
with Sections 508.14, 508.15, or 508.16 shall be considered 
to comply with the intent of this provision. [NFPA 54:9.1.9] 

508.14 Installation in Residential Garages. 

(1) Gas utilization appHances in residential garages and in | 
adjacent spaces that open to the garage and are not part 
of the living space of a dwelling unit shall be installed 
so that burners and burner-ignition devices are located 
not less than eighteen (18) inches (450 mm) above the 
floor unless listed as flammable vapor ignition resistant. 
[NFPA 54:9.1.10.1] 

(2) Such appliances shall be located or protected so it is not | 
subject to physical damage by a moving vehicle. [NFPA 
54:9.1.10.2] 

(3) When appliances are installed in a separate enclosed 
space having access only from outside of the garage, 
such appliances shall be permitted to be installed at floor | 
level, providing the required combustion air is taken 
from the exterior of the garage. [NFPA 54:9.1.10.3] 

508.15 Installation in Commercial Garages. 

508.15.1 Parking Structures. Gas utiHzation appliances | 
installed in enclosed, basement, and underground park- 
ing structures shall be installed in accordance with 
NFPA 88A, Standard for Parking Structures. [NFPA 
54:9.1.11.1] 

508.15.2 Repair Garages. Gas utilization appliances in- 1 
stalled in repair garages shall be installed in a detached 
building or room, separated from repair areas by walls 
or partitions, floors, or floor-ceiling assemblies that are 
constructed so as to prohibit the transmission of vapors 
and having a fire-resistance rating of not less than one 
(I) hour, and that have no openings in the wall separat- 
ing the repair area within eight (8) feet (2.5 m) of the 
floor. Wall penetrations shall be fire-stopped. Air for 
combustion purposes shall be obtained from outside the 
building. The heating room shall not be used for the stor- 
age of combustible materials. [NFPA 54:9. 1. 1 1 .2] 



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Exceptions: 

( 1 ) Overhead heaters where installed not less than eight 
(8) ft (2.5 m) above the floor shall be permitted. 

I (2) Heating appliances for vehicle repair areas where 
there is no dispensing or transferring of Class I or 
Class II flammable or combustible liquids or lique- 
fied petroleum gas shall be installed in accordance 
with NFPA 30 A, Code for Motor Fuel Dispensing 
Facilities and Repair Garages. [NFPA 54:9. 1 . 1 1 .2] 

508.16 Installation in Aircraft Hangars. Heaters in aircraft 
hangars shall be installed in accordance with NFPA 409, Stan- 
dard on Aircraft Hangars. [NFPA 54:9.1.12] 

1508.17 Gas Appliance Physical Protection. Where it is nec- 
essary to locate gas utilization appliances close to a passage- 
way traveled by vehicles or equipment, guardrails or bumper 
plates shall be installed to protect the appliance from dam- 
age. [NFPA 54:9.1.13] 

I 508.18 Venting of Flue Gases. Gas utilization appliances shall 
be vented in accordance with the provisions of this chapter and 
NFPA 54, National Fuel Gas Code, Chapter 12. [NFPA 
54:9.1.14] 

508.19 Extra Device or Attachment. No device or attach- 
I ment shall be installed on any gas utilization appliance that 

could in any way impair the combustion of gas. [NFPA 
54:9.1.15] 

508.20 Adequate Capacity of Piping. When additional gas 
I utilization appliances are being connected to a gas piping sys- 
tem, the existing piping shall be checked to determine if it 
has adequate capacity (See Section 1209.4.3). Where inade- 
quate, the existing system shall be enlarged as necessary, or 
separate gas piping of adequate capacity shall be run from the 

I point of delivery to the appHance. [NFPA 54:9.1.16] 

508.21 Avoiding Strain on Gas Piping. Gas utilization ap- 
pliances shall be supported and so connected to the piping as 
not to exert undue strain on the connections. [NFPA 54:9.1.17] 

508.22 Gas Appliance Pressure Regulators. Where the gas 
supply pressure exceeds that at which the gas utilization ap- 
pliance is designed to operate or varies beyond the design 
pressure limits of the appliance, a gas appliance pressure reg- 
ulator shall be installed. [NFPA 54:9.1.18] 

508.23 Venting of Gas Appliance Pressure Regulators. 

Venting of gas appliance pressure regulators shall comply 
with the following requirements [NFPA 54:9.1.19]: 

508.23.1 Gas appliance pressure regulators requiring ac- 
cess to the atmosphere for successful operation shall be 
equipped with vent piping leading outdoors or, if the reg- 

I ulator vent is an integral part of the appliance, into the 
combustion chamber adjacent to a continuous pilot, un- 
less constructed or equipped with a vent limiting means 
to limit the escape of gas from the vent opening in the 
event of diaphragm failure. [NFPA 54:9.1.19(1)] 

508.23.2 Vent limiting means shall be employed on listed 
giis apphance pressure regulators only. [NFPA 54:9. 1 .19(2)] 

508.23.3 In the case of vents leading outdoors, means 
shall be employed to prevent water from entering this 



piping and also to prevent blockage of vents by insects 
and foreign matter. [NFPA 54:9. 1 . 1 9(3)] 

508.23.4 Under no circumstances shall a regulator be 
vented to the gas utilization appliance flue or exhaust 
system. [NFPA 54:9.1.1 9(4)] 

508.23.5 In the case of vents entering the combustion 
chamber, the vent shall be located so the escaping gas 
will be readily ignited by the pilot and the heat liberated 
thereby will not adversely affect the normal operation of 
the safety shutoff system. The terminus of the vent shall 
be securely held in a fixed position relative to the pilot. 
For manufactured gas, the need for a flame arrester in the 
vent piping shall be determined. [NFPA 54:9.1.19(5)] 

508.23.6 Vent lines from a gas appliance pressure regu- 
lator and bleed lines from a diaphragm-type valve shall 
not be connected to a common manifold terminating in a 
combustion chamber. Vent lines shall not terminate in 
positive-pressure-type combustion chambers. [NFPA 
54:9.1.19(6)] 

508.24 Bleed Lines for Diaphragm-Type Valves. Bleed 
lines shall comply with the following requirements [NFPA 
54:9.1.20]: 

508.24.1 Diaphragm- type valves shall be equipped to 
convey bleed gas to the outside atmosphere or into the 
combustion chamber adjacent to a continuous pilot. 
[NFPA 54:9. 1.20(1)] 

508.24.2 In the case of bleed lines leading outdoors, 
means shall be employed to prevent water from entering 
this piping and also to prevent blockage of vents by in- 
sects and foreign matter. [NFPA 54:9.1.20(2)] 

508.24.3 Bleed lines shall not terminate in the gas utilization 
appliance flue or exhaust system. [NFPA 54:9. 1 .20(3)] | 

508.24.4 In the case of bleed lines entering the combus- 
tion chamber, the bleed line shall be located so the bleed 
gas will be readily ignited by the pilot and the heat lib- 
erated thereby will not adversely affect the normal oper- 
ation of the safety shutoff system. The terminus of the 
bleed line shall be securely held in a fixed position rela- 
tive to the pilot. For manufactured gas, the need for a 
flame arrester in the bleed line piping shall be deter- 
mined. [NFPA 54:9. 1.20(4)] 

508.24.5 Bleed lines from a diaphragm-type valve and 
vent lines from a gas appliance pressure regulator shall 
not be connected to a common manifold terminating in a 
combustion chamber. Bleed lines shall not terminate in 
positive-pressure-type combustion chambers. [NFPA 
54:9.1.20(5)] 

508.25 Combination of Appliances. Any combination of gas i 

utilization appliances, attachments, or devices used together | 
in any manner shall comply with the standards that apply to 
the individual appliance. [NFPA 54:9.1.21] 

508.26 Installation Instructions. The installing agency shall 
conform with the appliance manufacturer's recommendations | 



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in completing an installation. The installing agency shall leave 
the manufacturer's installation, operating, and maintenance in- 
structions in a location on the premises where they will be read- 
ily available for reference and guidance for the Authority 
Having Jurisdiction, service personnel, and the owner or oper- 
ator. [NFPA 54:9.1.22] 

1508.27 Protection of Outdoor Appliances. Gas utilization 
appliances not listed for outdoor installation but installed out- 
doors shall be provided with protection to the degree that the 
I environment requires. Appliances listed for outdoor installa- 
tion shall be permitted to be installed without protection in 
accordance with the provisions of its listing (See NFPA 
54:9.2.1). [NFPA 54:9.1.23] 

(The following references were extracted from NFPA 54, 
National Fuel Gas Code,) 

9.2 Accessibility and Clearance. 

I 9.2.1 Accessibility for Service. Gas utilization appliances 
shall be located with respect to building construction and 
other equipment so as to permit access to the gas utiliza- 

I tion appliance. Sufficient clearance shall be maintained to 
permit cleaning of heating surfaces; the replacement of 
filters, blowers, motors, burners, controls, and vent con- 
nections; the lubrication of moving parts where neces- 
sary; the adjustment and cleaning of burners and pilots; 
and the proper functioning of explosion vents, if provided. 
For attic installation, the passageway and servicing area 

I adjacent to the appliance shall be floored, 

I 509.0 Appliances on Roofs. 
509.1 General. 

1(1) Gas utihzation appliances on roofs shall be designed or 
enclosed so as to withstand climactic conditions in the 
area in which they are installed. Where enclosures are 
provided, each enclosure shall permit easy entry and 
movement, shall be of reasonable height, and shall have 
not less than a thirty (30) inch (760 mm) clearance be- 

I tween the entire service access panel(s) of the appliance 
and the wall of the enclosure. [NFPA 54:9.4.1.1] 

I (2) Roofs on which an appliance is to be installed shall be ca- 
pable of supporting the additional load or shall be rein- 
forced to support the additional load. [NFPA 54:9.4.1.2] 

(3) All access locks, screws, and bolts shall be of corrosion- 
resistant material [NFPA 54:9.4. 1 .3] 

1 509.2 Installation of Appliances on Roofs. 

1(1) Gas utilization appliances shall be installed in accordance 
with its listing and the manufacturer's installation in- 
structions. [NFPA 54:9.4.2.1] 

I (2) Appliances shall be installed on a well-drained surface 
of the roof. Not less than six (6) feet (1.8 m) of clearance 

I shall be available between any part of the appliance and 
the edge of a roof or similar hazard, or rigidly fixed rails, 
guards, parapets, or other building structures not less than 
forty-two (42) inches (1 . 1 m) in height shall be provided 
on the exposed side. [NFPA 54:9,4.2.2] 



(3) Appliances requiring an external source of electrical | 
power for its operation shall be provided with (1) a read- 
ily accessible electrical disconnecting means within sight 
of the appliance that will completely de-energize the ap- 
pliance, and (2) a 120- VAC grounding-type receptacle 
outlet on the roof adjacent to the apphance. The recepta- 
cle outlet shall be on the supply side of the disconnect 
switch. [NFPA 54:9.4.2.3] 

(4) Where water stands on the roof of the appliance or in the 
passageways to the appliance, or where the roof is of a de- 
sign having a water seal, a suitable platform, walkway, or 
both shall be provided above the waterline. Such platforms 
or walkways shall be located adjacent to the appliance and I 
control panels so that the appliance can be safely serviced | 
where water stands on the roof [NFPA 54:9.4.2.4] 

509.3 Access to Appliances on Roofs. 

509.3.1 Gas utilization appliances located on roofs or 
other elevated locations shall be accessible. [NFPA 
54:9.4.3.1] 

509.3.2 Buildings exceeding fifteen (15) feet (4.6 m) in 
height shall have an inside means of access to the roof, 
unless other means acceptable to the Authority Having 
Jurisdiction are used. [NFPA 54:9.4.3.2] 

509.3.3 The inside means of access shall be a permanent, 
or fold-away inside stairway or ladder, terminating in an 
enclosure, scuttle, or trap door. Such scuttles or trap doors 
shall be not less than twenty-two (22) inches x twenty- 
four (24) inches (560 mm x 610 mm) in size, shall open 
easily and safely under all conditions, especially snow; 
and shall be constructed so as to permit access from the 
roof side unless deliberately locked on the inside. 

Not less than six (6) feet (1.8 m) of clearance shall 
be available between the access opening and the edge of 
the roof or similar hazard, or rigidly fixed rails or guards 
not less than forty- two (42) inches (1 . 1 m) in height shall 
be provided on the exposed side. Where parapets or other 
building structures are utihzed in lieu of guards or rails, 
they shall be not less than forty -two (42) inches (1.1m) 
in height. [NFPA 54:9.4.3.3] 

509.3.4 Permanent lighting shall be provided at the roof 
access. The switch for such lighting shall be located in- 
side the building near the access means leading to the 
roof. [NFPA 54:9.4.3.4] 

509.4 Appliances in Attics. 

509.4.1 Attic Access. An attic in which an appliance is 
installed shall be accessible through an opening and pas- 
sageway not less than as large as the largest component of 
the appliance, and not less than twenty-two (22) inches x 
thirty (30) inches (560 mm x 760 mm). [NFPA 54:9.5.1] 

509.4.2 Where the height of the passageway is less than 
six (6) feet (1.8 m), the distance from the passageway ac- 
cess to the appliance shall not exceed twenty (20) feet 
(6.1 m) measured along the centerline of the passageway. 
[NFPA 54:9.5.1.1] 



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509.4.3 The passageway shall be unobstructed and shall 
have solid flooring not less than twenty-four (24) inches 
(610 mm) wide from the entrance opening to the appli- 
ance. [NFPA 54:9.5. 1.2] 

509.4.4 Work Platform. A level working platform not 
less than thirty (30) inches (760 mm) by thirty (30) 
inches (760 mm) shall be provided in front of the service 
side of the appliance. [NFPA 54:9.5.2] 

509.4.5 Lighting and Convenience Outlet. A perma- 
nent 120-volt receptacle outlet and a lighting fixture shall 
be installed near the appliance. The switch controlling 
the lighting fixture shall be located at the entrance to the 
passageway. [NFPA 54:9.5.3] 

I 510.0 Venting of Appliances. 

510.1 General. This section recognizes that the choice of 
venting materials and the methods of installation of venting 
systems are dependent on the operating characteristics of the 

I appliance. [NFPA 54:12.2.1] 

510.1.1 Categories. The operating characteristics of vented 
I gas utilization appliances can be categorized with respect to 

(1) positive or negative pressure within the venting system, 
I and (2) whether or not the appliance generates flue or vent 
gases that can condense in the venting system. See NFPA 
54, National Fuel Gas Code, Section 3.3 for the definition 
of these vented appliance categories. [NFPA 54: 12.2.2] 

510.1.2 Installation. Listed vents shall be installed in ac- 
cordance with Chapter 5 and the manufacturer's instal- 
lation instructions. [NFPA 54:12.2.3] 

510.1.3 Appliance vents shall not discharge into any 
space enclosed by screens having openings less than one- 
fourth (14) inch (6.4 mm) mesh. 

510.2 Specification for Venting. 

510.2.1 Connection to Venting Systems. Except as per- 
mitted in Sections 510.2.2 through 510.2.6, gas utiliza- 
I tion appliances shall be connected to venting systems. 
[NFPA 54: 12.3.1] 

1510.2.2 Appliances Not Required to Be Vented. The 
following appliances shall not be required to be vented 

[NFPA 54:12.3.2]: 

510.2.2.1 Listed ranges. [NFPA 54: 12.3.2(1)] 

510.2.2.2 Built-in domestic cooking units listed and 
marked for optional venting. [NFPA 54:12.3.2(2)] 

510.2.2.3 Listed hot plates and listed laundry stoves. 
[NFPA 54: 12.3.2(3)] 

510.2.2.4 Listed Type 1 clothes dryers shall be ex- 
hausted to the outside air. [NFPA 54:12.3,2(4)] 

510.2.2.5 A single hsted booster-type (automatic in- 
stantaneous) water heater, when designed and used 
solely for the sanitizing rinse requirements of a dish- 
washing machine, provided that the appliance is in- 
stalled with the draft hood in place and unaltered if 



a draft hood is required, in a commercial kitchen 
having a mechanical exhaust system; where installed 
in this manner, the draft hood outlet shall be not less 
than thirty-six (36) inches (910 mm) vertically and 
six (6) inches (150 mm) horizontally from any sur- 
face other than the appliance. [NFPA 54: 12.3.2(5)] | 

510.2.2.6 Listed refrigerators. [NFPA 54: 12.3.2(6)] 

510.2.2.7 Counter appliances. [NFPA 54: 12.3.2(7)] 

510.2.2.8 Direct gas-fired makeup air heaters. 
[NFPA 54: 12.3.2(9)] 

510.2.2.9 Other apphances listed for unvented use and | 
not provided with flue collars. [NFPA 54: 12.3.2(10)] 

510.2.2.10 Specialized appliance of limited input I 
such as laboratory burners or gas lights. [NFPA 
54:12.3.2(11)] 

Where apphances in Sections 510.2.2.5 through | 
5 10.2.2. 10 are installed so the aggregate input rating 
exceeds 20 Btu/h/ft.^ (207 W/m^) of room or space in 
which it is installed, one (1) or more shall be pro- 
vided with venting systems or other approved means 
for removing the vent gases to the outside atmos- 
phere so the aggregate input rating of the remaining 
unvented appliance does not exceed 20 Btu/h/ft.^ | 
(207 W/m^). Where the calculation includes the vol- 
ume of an adjacent room or space, the room or space 
in which the appliance is installed shall be directly | 
connected to the adjacent room or space by a door- 
way, archway, or other opening of comparable size 
that cannot be closed. [NFPA 54: 12.3.2] 

510.2.3 Ventilating Hoods. Ventilating hoods and ex- 
haust systems shall be permitted to be used to vent gas 
utilization appliances installed in commercial applica- 
tions (See Section 510.3.5) and to vent industrial apph- 
ances, particularly where the process itself requires fume 
disposal. [NFPA 54:12.3.3] 

510.2.4 Well-Ventilated Spaces. The operation of in- 
dustrial appliances such that its flue gases are discharged | 
directly into a large and well-ventilated space shall be 
permitted. [NFPA 54: 12.3.4] 

510.2.5 Direct-Vent Appliances. Listed direct- vent gas I 
utilization appliances shall be considered properly vented | 
where installed in accordance with the terms of its listing, 
the manufacturer's instructions, and Section 510.8.3 of this 
code. [NFPA 54:12.3.5] 

510.2.6 Appliances with Integral Vents. Gas utilization I 
appliances incorporating integral venting means shall be I 
considered properly vented where installed in accordance 
with its listing, the manufacturer's instructions, and Sec- 
tions 510.8.1 and 5 10.8.2 of this code. [NFPA 54: 12.3.6] 

510.3 Design and Construction. 

510.3.1 Minimum Safe Performance. A venting system 
shall be designed and constructed so as to develop a pos- 
itive flow adequate to remove flue or vent gases to the 
outside atmosphere. [NFPA 54:12.1] 



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510.3.2 Appliance Draft Requirements. A venting sys- 
tem shall satisfy the draft requirements of the appliance 
in accordance with the manufacturer's instructions. 

[NFPA 54:12.4.1] 

510.3.3 Design and Construction. Gas utilization ap- 
pliances required to be vented shall be connected to a 
venting system designed and installed in accordance with 
the provisions of Sections 510.4 through 510.15 of this 

code. [NFPA 54:12.4.2] 

510.3.4 Meclianical Draft Systems. 

510.3.4.1 Mechanical draft systems shall be listed 
and shall be installed in accordance with the terms of 
their listing and both the appliance and the mechan- 
ical draft system manufacturer's instructions. [NFPA 
54:12.4.3.1] 

510.3.4.2 Gas utilization appliances requiring vent- 
ing shall be permitted to be vented by means of me- 
chanical draft systems of either forced or induced 
draft design. [NFPA 54:12.4.3.2] 

Exception: Incinerators. 

510.3.4.3 Forced draft systems and portions of in- 
duced draft systems under positive pressure during 
operation shall be designed and installed so as to pre- 
vent leakage of flue or vent gases into a building. 
[NFPA 54:12.4.3.3] 

510.3.4.4 Vent connectors serving appliances vented 
by natural draft shall not be connected into any por- 
tion of mechanical draft systems operating under 
positive pressure. [NFPA 54:12,4.3.4] 

510.3.4.5 Where a mechanical draft system is em- 
ployed, provision shall be made to prevent the flow 
of gas to the main burners when the draft system is 
not performing so as to satisfy the operating re- 
quirements of the appliance for safe performance. 
[NFPA 54:12.4.3.5] 

510.3.4.6 The exit terminals of mechanical draft sys- 
tems shall be not less than seven (7) feet (2.1 m) 
above finished grade where located adjacent to pub- 
lic walkways and shall be located as specified in 
Sections 510.8.1 and 510.8.2 of this code. [NFPA 
54:12.4.3.6] 

510.3.5 Ventilating Hoods and Exhaust Systems. 

510.3.5.1 Ventilating hoods and exhaust systems 
shall be permitted to be used to vent gas utilization 
appliances installed in commercial applications. 
[NFPA 54:12.4.4.1] 

510.3.5.2 Where automatically operated appliances, 
other than commercial cooking appliances, are 
vented through a ventilating hood or exhaust system 
equipped with a damper or with a power means of 
exhaust, provisions shall be made to allow the flow 
of gas to the main burners only when the damper is 
open to a position to properly vent the appliance and 
when the power means of exhaust is in operation. 
[NFPA 54: 12.4.4.2] 



510.3.6 Circulating Air Ducts and Furnace Plenums. 

Venting systems shall not extend into or pass through any 
fabricated air duct or furnace plenum. [NFPA 54- 
09:12.4.5.1] 

510.4 Type of Venting System to Be Used. 

510.4.1 The type of venting system to be used shall be in 
accordance with Table 5-2. [NFPA 54:12.5.1] 

510.4.2 Plastic Piping. Plastic piping used for venting 
appliances listed for use with such venting materials shall | 
be approved. [NFPA 54: 12.5.2] 

510.4.3 Plastic Vent Joints. Plastic pipe and fittings used 
to vent appliances shall be installed in accordance with 
the appliance manufacturer's installation instructions. 
Where primer is required, it shall be of a contrasting 
color. [NFPA 54-09: 12.5.3] 

510.4.4 Special Gas Vent. Special gas vent shall be 
listed and installed in accordance with the terms of the 
special gas vent listing and the manufacturer's instruc- 
tions. [NFPA 54:12.5.3] 

510.5 Masonry, Metal, and Factory-Built Chimneys. 

510.5.1 Listing or Construction. 

510.5.1.1 Factory-built chimneys shall be installed in 
accordance with their listing and the manufacturer's 
instructions. Factory-built chimneys used to vent ap- 
pliances that operate at positive vent pressure shall be 
Hsted for such application. [NFPA 54:12.6.1.1] 

510.5.1.2 Metal chimneys shall be built and installed 
in accordance with NFPA 211, Standard for Chim- 
neys, Fireplaces, Vents, and Solid Fuel-Burning Ap- 
pliances, [NFPA 54: 12.6. 1.2] 

510.5.1.3 Masonry chimneys shall be built and in- 
stalled in accordance with NFPA 211, Standard for 
Chimneys, Fireplaces, Vents, and Solid Fuel-Burn- 
ing Appliances, and lined with approved clay flue 
lining, a listed chimney lining system, or other ap- 
proved material that will resist corrosion, erosion, 
softening, or cracking from vent gases at tempera- 
tures up to 1,800T (982°C). [NFPA 54: 12.6. 1.3] 

Exception: Masonry chimney flues lined with a 
chimney lining system specifically listed for use 
with Usted gas appliances with draft hoods, Cate- 
gory I appliances, and other gas appliances listed 
for use with Type B vents shall be permitted. The 
liner shall be installed in accordance with the liner 
manufacturer's instructions and the terms of the list- 
ing. A permanent identifying label shall be attached 
at the point where the connection is to be made to 
the liner. The label shall read: "This chimney liner 
is for appliances that bum gas only. Do not connect 
to solid- or liquid-fuel-buming appliances or incin- 
erators." [NFPA 54: 12.6.1.3] 

510.5.2 Termination. 

510.5.2.1 A chimney for a residential-type or low- 
heat gas utilization appliance shall extend at least | 
three (3) feet (0.9 m) above the highest point where 
it passes through the roof of a building and at least 
two (2) feet (0.6 m) exceeding any portion of a 



80 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



building within a horizontal distance often (10) feet 
(3.0 m) (See Figure 5-1). [NFPA 54:12.6.2.1] 

510.5.2.2 A chimney for a medium-heat appliance 
shall extend at least ten (10) feet (3.0 m) exceeding 
any portion of any building within twenty-five (25) 
feet (7.6 m). [NFPA 54:12.6.2.2] 

510.5.2.3 A chimney shall extend at least five (5) 
feet (1.5 m) above the highest connected apphance 
draft hood outlet or flue collar. [NFPA 54: 12.6.2.3] 

510.5.2.4 Decorative shrouds shall not be installed at 
the termination of factory-built chimneys except 
where such shrouds are listed and labeled for use 
with the specific factory-built chimney system and 
are installed in accordance with manufacturer's in- 
stallation instructions. [NFPA 54:12.6.2.4] 

510.5.3 Size of Chimneys. The effective area of a chim- 
ney venting system serving listed gas appliances with 
draft hoods, Category I appliances, and other appliances 
listed for use with Type B vents shall be in accordance 
with one of the following methods [NFPA 54:12.6.3.1]: 

( 1 ) This chapter and NFPA 54, National Fuel Gas Code: 
Chapter 13. [NFPA 54: 12.6.3.1(1)] 

(2) For sizing an individual chimney venting system for 
a single appliance with a draft hood, the effective 
areas of the vent connector and chimney flue shall 
be not less than the area of the appliance flue collar 
or draft hood outlet or exceeding seven (7) times the 
draft hood outlet area. [NFPA 54:12.6.3.1(2)] 

(3) For sizing a chimney venting system connected to 
two (2) appliances with draft hoods, the effective area 
of the chimney flue shall be not less than the area of 
the larger draft hood outlet plus 50 percent of the area 
of the smaller draft hood outlet, or exceeding seven 
(7) times the smallest draft hood outlet area. [NFPA 
54:12.6.3.1(3)] 

(4) Other approved engineering methods. [NFPA 
54:12.6.3.1(5)] 

(5) Chimney venting systems using mechanical draft 
shall be sized in accordance with approved engi- 
neering methods. [NFPA 54:12.6.3.1(4)] 

510.5.4 Inspection of Ciiimneys. 

(A) Before replacing an existing appliance or connecting 
a vent connector to a chimney, the chimney pas- 
sageway shall be examined to ascertain that it is 
clear and free of obstructions and shall be cleaned if 
previously used for venting solid- or liquid-fuel- 
buming appHances or fireplaces. [NFPA 54: 12.6.4. 1] 

(B) Chimneys shall be lined in accordance with NFPA 211, 
Standard for Chimneys, Fireplaces, Vents, and Solid- 
Fuel Burning Appliances. [NFPA 54-09: 12.6.4.2] 

Exception: Existing chimneys shall be permitted to 
have their use continued where an appliance is re- 
placed by an appliance of similar type, input rating, 
and efficiency, where the chimney complies with 
Section 510.5.4, and the sizing of the chimney is in 
accordance with Section 510.5.3. 



2 ft (0.6 m) 
minimum - 



r-IOftp.Om)-. 
/ orless \ 



^ 



M^ 



Chimney JV"*' 



\ 



2 ft (0.6 m) minimum 

T 






Wall or 
parapet 



3 ft (0.9 m) 
minimum 



Chimney 



10 ft (3.0 m) 
orless 



3 ft (0.9 m) 
minimum 




(a) Termination 10 ft (3.0 m) or Less from Rfdge, WatI, or Parapet 



More than 
- 10 ft (3.0 m)- 



'^ &m^m:m^:< m^m^imJi 



Wall or 
parapet 



;-p. 



^ 



-^4. 



Note: No height 
above parapet 
required when 
distance from walls 
or parapet is more 
than 10 ft (3.0 m). 




Chimney 



Height above any 
roof surface within 
10 ft (3,0 m) horizontally 



Ridge 




Chimney 
;(b) Temilnatlon More Than 10 ft (3.0 m) from Ridge, Wall, or Parapet 



FIGURE 5-1 TYPICAL TERMINATION LOCATIONS FOR 

CHIMNEYS AND SINGLE-WALL METAL PIPES SERVING 

RESIDENTIAL-TYPE AND LOW-HEAT APPLIANCE 

[NFPA 54: FIGURE 12.6.2.1] 



2010 CALIFORNIA PLUMBING CODE 



81 



WATER HEATERS 



(C) Cleanouts shall be examined to determine that they 
will remain tightly closed when not in use. [NFPA 

54:12.6.4.3] 

(D) When inspection reveals that an existing chimney is 
not safe for the intended application, it shall be re- 
paired, rebuilt, lined, relined, or replaced with a vent 
or chimney to conform to NFPA 211, Standard for 
Chimneys, Fireplaces, Vents, and Solid-Fuel- 
Burning Appliances, and shall be suitable for the ap- 
pliances to be attached. [NFPA 54:12.6.4.4] 

510.5.5 Chimney Serving Appliances Burning Othier 
Fuels. 

510.5.5.1 Gas utilization appliances shall not be con- 
nected to a chimney flue serving a separate appliance 
designed to bum solid fuel [NFPA 54: 12.6.5.1] 

510.5.5.2 Where one (1) chimney serves gas uti- 
lization appliances and liquid fuel-burning appli- 
ances, the appliance shall be connected through 
separate openings or shall be connected through a 
single opening where joined by a suitable fitting lo- 
cated as close as practical to the chimney. Where 
two (2) or more openings are provided into one (1) 
chimney flue, they shall be at different levels. Where 
the gas utilization appliance is automatically con- 
trolled, it shall be equipped with a safety shutoff de- 
vice. [NFPA 54: 12.6.5.2] 



Listed ^Qwe st discharge opening 
cap ""1__J -J- 

Listed gas 
vent *^ 



ivv 




ROOF PITCH HEIGHTS 
ROOF PITCH 

Flat to Vi2 
Over Vn to Vn 
Over V\i to V\i 
Over Ml to Vn 
Over Vu to '^12 
Over '0/12 to ^Vii 
Over ^Vn to ^Vn 
Over ^Vn to 'Vu 
Over 'yi2 to 'yi2 
Over ^M2 to '^12 
Over 1^12 to 20/12 
Over 2^12 to 2'/i2 



Roof pitch is x/1 2 



H (minimum) - 
IVIinimum height from roof 
to lowest discharge opening 



H(minimum) ft. m 

1.0 0.30 

1.25 0.38 

1.5 0.46 

2.0 0.61 

2.5 0.76 

3,25 0.99 

4.0 1.22 

5.0 1.52 

6.0 1.83 

7.0 2.13 

7.5 2.27 

8.0 2.44 



Gas furnace 




Type B gas vents 



Air grilles in 
outside waits 



Louvered door could 
be used in iieu of 
outside wall grilles 



FIGURE 5-3 PLAN VIEW OF PRACTICAL SEPARATION 

METHOD FOR MULTISTORY GAS VENTING. 

[NFPA 54: FIGURE 12.7.4.2] 

TABLE 5-2 

TYPE OF VENTING SYSTEM TO BE USED 

[NFPA 54: Table 12.5.1] 



FIGURE 5-2 GAS VENT TERMINATION LOCATIONS FOR 

LISTED CAPS 12 INCH (300 MM) OR LESS IN SIZE NOT LESS 

THAN 8 FEET (2.4 m) FROM A VERTICAL WALL 

[NFPA 54: FIGURE 12.7.2 AND TABLE 12.7.2] 



GAS UTILIZATION APPLIANCES 


TYPE OF VENTING SYSTEM 


Listed Category I appliances 


Type B gas vent (510.6) 


Listed appliances equipped with 
draft hood 

Appliances listed for Type B gas 
vent 


Chimney (510.5) 
Single-wall metal pipe (510.7) 
Listed chimney lining system 
for gas venting (510.5.1.3) 
Special gas vent listed for this 
appliance (510.4.4) 


Listed vented wall furnaces 


Type B-W gas vent (5 10.6, 
510.6.2.2) 


Category II appliances 
Category III appliances 
Category IV appliances 


As specified or furnished 

By manufacturers of listed ap- 
pliance (510.4.2, 510.4.4) 


Incinerators, outdoors 


Single-wall metal pipe (510.7, 
510.7.3) 


Incinerators, indoors 

Appliances that can be converted 
to use of solid fuel 

Unlisted combination gas- and 
oil-burning appliances 

Combination gas- and soUd- 
fuel-buming appliances 

Appliances listed for use with 
chimneys only 

Unlisted appliances 


Chimney (510.5) 


Listed combination gas- and 
oil-burning appliances 


Type L vent (5 10.6) or chimney 
(510.5) 


Decorative appliance in vented 
fireplace 


Chimney [UMC 907.2(3)] 


Gas-fired toilets 


Single-wall metal pipe (510.7, 
NFPA 54:10.25.3) 


Direct-vent appliances ■ 


See 510.2.5 


Appliances with integral vent 


See 510.2.6 



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510.5.5.3 A listed combination gas- and solid-fuel- 
buming appliance connected to a single chimney 
flue shall be equipped with a manual reset device to 
shut off gas to the main burner in the event of sus- 
tained backdraft or flue gas spillage. The chimney 
flue shall be sized to properly vent the appliance. 
[NPPA 54: 12.6.5.3] 

510.5.5.4 A single chimney flue serving a listed com- 
bination gas- and oil-buming appliance shall be sized 
to properly vent the appHance. [NFPA 54: 12.6.5.4] 

510.5.6 Support of Chimneys. Portions of chimneys 
shall be supported for the design and vi^eight of the ma- 
terials employed. Listed factory-built chimneys shall be 
supported and spaced in accordance with their listings 
and the manufacturer's instructions. [NFPA 54:12.6.6] 

510.5.7 Cleanouts. Where a chimney that formerly car- 
ried flue products from liquid- or solid-fuel-buming ap- 
pliances is used with an appliance using fuel gas, an 
accessible cleanout shall be provided. The cleanout shall 
have a tight-fitting cover and be installed so its upper edge 
is at least six (6) inches (150 mm) below the lower edge 
of the lowest chimney inlet opening. [NFPA 54:12.6.7] 

510.5.8 Space Surrounding Lining or Vent. 

510.5.8.1 The remaining space surrounding a chim- 
ney liner, gas vent, special gas vent, or plastic piping 
installed within a masonry chimney flue shall not be 
used to vent another appliance. [NFPA 54: 12.6.8.1] 

Exception: The insertion of another liner or vent 
within the chimney as provided in this code and the 
liner or vent manufacturer's instructions. 

510.5.8.2 The remaining space surrounding a chim- 
ney liner, gas vent, special gas vent, or plastic piping 
installed within a masonry chimney flue shall not be 
used to supply combustion air. [NFPA 54: 12.6.8.2] 

Exception: Direct-vent gas-fired appliances de- 
signed for installation in a solid-fuel-buming fire- 
place where installed in accordance with the listing 
and the manufacturer's instruction. 

510.6 Gas Vents. 

510.6.1 A gas vent passing through a roof shall extend 
through the entire roof flashing, roof jack, or roof thim- 
ble and be terminated with a listed termination cap. 
[NFPA 54: 12.7.2(6)] 

510.6.1.1 Type B or Type L vents shall extend in a 
generally vertical direction with offsets not exceed- 
ing 45 degrees, except that a vent system having not 
more than one 60 degree offset shall be permitted. 
Any angle greater than 45 degrees from the vertical 
is considered horizontal. The total horizontal dis- 
tance of a vent plus the horizontal vent connector 
serving draft-hood-equipped appliances shall not ex- 
ceed 75 percent of the vertical height of the vent. 
[NFPA 54:12.7.3.2] 



Exception: Systems designed and sized as provided 
in this chapter or in accordance with other approved 
engineering methods. 

510.6.1.2 Screws, rivets and other fasteners shall not I 
penetrate the inner wall of double wall gas vents. I 

510.6.2 A gas vent shall terminate in accordance with 
one of the following [NFPA 54:12.7.2(1)]: 

(1) Above the roof surface with a listed cap or listed 
roof assembly. Gas vents twelve (12) inches (300 
mm) in size or smaller with listed caps shall be per- 
mitted to be terminated in accordance with Figure 
5-2, provided they are at least eight (8) feet (2.4 m) 
from a vertical wall or similar obstruction. Other gas 
vents shall terminate not less than two (2) feet (0.6 
m) above the highest point where they pass through 
the roof and at least two (2) feet (0,6 m) exceeding 
any portion of a building within ten (10) feet (3.1 
m). [NFPA 54:12.7.2(l)(a) and (b)] 

(2) Industrial gas utilization appliances as provided in I 
Section 510.2.4. [NFPA 54:12.7.2(l)(c)] 

(3) Direct- vent systems as provided in Section 5 10.2.5. 

[NFPA54:12.7.2(l)(d)] 

(4) Appliances with integral vents as provided in Sec- 1 
tion 510.2.6. [NFPA 54:12.7.2(l)(e)] 

(5) Mechanical draft systems as provided in Section 
510.3.4. [NFPA54:12.7.2(l)(f)] 

(6) Ventilating hoods and exhaust systems as provided 
in Section 510.3.5. [NFPA54: 12.7.2(l)(g)] 

510.6.2.1 A Type B or a Type L gas vent shall ter- 
minate at least five (5) feet (1 .5 m) in vertical height 
above the highest connected appliance draft hood or I 
flue collar. [NFPA 54: 12.7.2(2)] 

510.6.2.2 A Type B-W gas vent shall terminate at 
least twelve (12) feet (3.7 m) in vertical height above 
the bottom of the wall furnace. [NFPA 54: 12.7.2(3)] 

510.6.2.3 A gas vent extending through an exterior 
wall shall not terminate adjacent to the wall or below 
eaves or parapets, except as provided in Sections 
510.2.5 and 510.3.4. [NFPA 54:12.7.2(4)] 

510.6.2.4 Decorative shrouds shall not be installed at 
the termination of gas vents except where such 
shrouds are listed for use with the specific gas venting 
system and are installed in accordance with manufac- 
turer's installation instructions. [NFPA 54:12.7.2(5)] 

510.6.2.5 Gas vents shall extend through the roof 
flashing, roof jack, or roof thimble and terminate 
with a listed cap or listed roof assembly. [NFPA 
54:12.7.2(6)] 

510.6.2.6 A gas vent shall terminate at least three (3) 
feet (0.9 m) above a forced air inlet located within 
ten (10) feet (3.0 m). [NFPA 54: 12.7.2(7)] 

510.6.3 Size of Gas Vents. Venting systems shall be 
sized and constructed in accordance with NFPA 54, Na- 
tional Fuel Gas Code, Chapter 13 or other approved en- 1 
gineering methods and the gas vent and gas appliance I 

manufacturer's instructions. [NFPA 54: 12.7.3] 



2010 CALIFORNIA PLUMBING CODE 



83 



WATER HEATERS 



510.6.3.1 Category I Appliances. The sizing of nat- 
ural draft venting systems serving one (1) or more 
listed appliances equipped with a draft hood or apph- 
ances listed ft)r use with Type B gas vent, installed in 
a single story of a building, shall be in accordance with 
one of the following methods [NFPA 54: 1 2.7.3.1]: 

(1) The provisions of this chapter. [NFPA 
54:12.7.3.1(1)] 

(2) Vents serving fan-assisted combustion system 
appliances, or combinations of fan-assisted 
combustion systems and draft hood-equipped 
appliances, shall be sized in accordance with 
this chapter or other approved engineering 
methods. [NFPA 54:12.7.3.1(2)] 

(3) For sizing an individual gas vent for a single, 
draft-hood-equipped appliance, the effective 
area of the vent connector and the gas vent shall 
be at least the area of the appliance draft hood 
outlet or exceeding seven (7) times the draft 
hood outlet area. [NFPA 54:12.7.3.1(3)] 

(4) For sizing a gas vent connected to two (2) ap- 
phances with draft hoods, the effective area of 
the vent shall be at least the area of the larger 
draft hood outlet plus 50 percent of the area of 
the smaller draft hood outlet or exceeding seven 
(7) times the smaller draft hood outlet area. 
[NFPA 54:12.7.3.1(4)] 

(5) Approved engineering practices. [NFPA 

54:12.7.3.1(5)] 

510.6.3.2 Category II, Category in, and Category 
IV Appliances. The sizing of gas vents for Category 
II, Category III, and Category IV gas utilization ap- 
pliances shall be in accordance with the equipment 
manufacturer's instructions. [NFPA 54: 12.7.3.3] 

510.6.3.3 Sizing. Chimney venting systems using 
mechanical draft shall be sized in accordance with 
approved engineering methods. [NFPA 54: 12.7.3.4] 

510.6.4 Gas Vents Serving Appliances on More Than 
One Floor. 

510.6.4.1 A conomon gas vent shall be permitted in 
multistory installations to vent Category I gas uti- 
lization appliances located on more than one (1) 
floor level, provided the venting system is designed 
and installed in accordance with approved engi- 
neering methods. 

For the purpose of this section, crawl spaces, 
basements, and attics shall be considered as floor 

levels. [NFPA 54:12.7.4.1] 

510.6.4.2 Gas utilization apphances connected to the 
common vent shall be located in rooms separated 
from a habitable space. Each of these rooms shall 
have provisions for an adequate supply of combus- 
tion, ventilation, and dilution air that is not supplied 
from a habitable space (See Figure 5-3). [NFPA 
54:12.7.4.2] 



The size of the connectors and common seg- 
ments of multistory venting systems for gas utiliza- 
tion apphances listed for use with Type B double-wall | 
gas vent shall be in accordance with Table 5-14, pro- 
vided [NFPA 54: 12.7.4.3]: 

(1) The available total height (H) for each segment 
of a multistory venting system is the vertical 
distance between the level of the highest draft 
hood outlet or flue collar on that floor and the 
centerline of the next highest interconnection 
tee (See Figure G.l(K)). [NFPA 54: 12.7.4.3(1)] 

(2) The size of the connector for a segment is de- 
termined from its gas utilization appliance heat 
input and available connector rise, and shall not 
be smaller than the draft hood outlet or flue col- 
lar size. [NFPA 54:12.7.4.3(2)] 

(3) The size of the common vertical vent segment, 
and of the interconnection tee at the base of that 
segment, shall be based on the total gas uti- 
lization appliance heat input entering that seg- 1 
ment and its available total height. [NFPA 
54:12.7.4.3(3)] 

510.6.5 Support of Gas Vents. Gas vents shall be sup- 
ported and spaced in accordance with their Hstings and 
the manufacturer's instructions. [NFPA 54:12.7.5] 

510.6.6 Marking. In those localities where solid and liq- 
uid fuels are used extensively, gas vents shall be perma- 
nently identified by a label attached to the wall or ceiling 
at a point where the vent connector enters the gas vent. 
The label shall read: "This gas vent is for appliances that 
bum gas. Do not connect to solid- or Hquid-fiiel-buming 
appliances or incinerators," The Authority Having Juris- 
diction shall determine whether its area constitutes such 
a locality. [NFPA 54:12.7.6] 

510.7 Single- Wall Metal Pipe. 

510.7.1 Construction, Single-wall metal pipe shall be 
constructed of galvanized sheet steel not less than 0.0304 
inch (0.7 mm) thick or of other approved, noncom- 
bustible, corrosion-resistant material. [NFPA 54:12.8.1] 

510.7.2 Cold Climate. Uninsulated single-wall metal 
pipe shall not be used outdoors in cold climates for vent- 
ing gas utilization appliances. For venting appliances in | 
regions where the 99 percent winter design temperature 
is below 32°F (O^C). [NFPA 54:12.8.2] 

510.7.3 Termination. The termination of single-wall 
metal pipe shall comply with the following requirements 
[NFPA 54: 12.8.3]: 

510.7.3.1 Single-wall metal pipe shall terminate at 
least five (5) feet (1.5 m) in vertical height above the 
highest connected appliance draft hood outlet or flue | 
collar. [NFPA 54:12.8.3(1)] 

510.7.3.2 Single-wall metal pipe shall extend at least 
two (2) feet (0.6 m) above the highest point where it 
passes through the roof of a building and at least (2) 
feet (0.6 m) exceeding any portion of a building 
within a horizontal distance often (10) feet (3.1m) 
(See Figure 5-1). [NFPA 54:12.8.3(2)] 



84 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



510.7.3.3 An approved cap or roof assembly shall be 
attached to the terminus of a single-wall metal pipe 
[Also see Section 510.7.4.4]. [NFPA 54: 12.8.3(3)] 

510.7.4 Installation with Appliances Permitted by 
510.4.1. 

510.7.4.1 Prohibited Use. Single-wall metal pipe 
shall not be used as a vent in dwellings and resi- 
dential occupancies. [NFPA 54-09: 12.8.4.1] 

510.7.4.2 Single-wall metal pipe shall be used only 
for runs directly from the space in which the gas uti- 
lization appliance is located through the roof or ex- 
terior wall to the outer air. A pipe passing through a 
roof shall extend without interruption through the 
roof flashing, roof jacket, or roof thimble. [NFPA 
54:12.8.4.1] 

510.7.4.3 Single-wall metal pipe shall not originate 
in any unoccupied attic or concealed space and shall 
not pass through any attic, inside wall, concealed 
space, or floor. For the installation of a single-wall 
metal pipe through an exterior combustible wall, see 
Section 510.10.14.3. [NFPA 54:12.8.4.2] 

510.7.4.4 Single- wall metal pipe used for venting an 
incinerator shall be exposed and readily examinable 
for its full length and shall have suitable clearances 
maintained. [NFPA 54: 12.8.4.3] 

510.7.4.5 Minimum clearances from single-wall 
metal pipe to combustible material shall be in ac- 
cordance with Table 5-3. Reduced clearances from 
single-wall metal pipe to combustible material shall 
be as specified for vent connectors in Table 5-4. 
[NFPA 54:12.8.4.4] 

510.7.4.6 Single-wall metal pipe shall not pass 
through a combustible exterior wall unless guarded at 
the point of passage by a ventilated metal thimble not 
smaller than the following [NFPA 54: 12. 1 1 .14.2]: 

( 1 ) For listed appliances equipped with draft hoods 
and appliances listed for use with Type B gas 
vents, the thimble shall be at a minimum four 



(4) inches (100 mm) larger in diameter than the 
metal pipe. Where there is a run of at least six 
(6) feet (1.8 m) of metal pipe in the opening be- 
tween the draft hood outlet and the thimble, the 
thimble shall be a minimum two (2) inches (50 
mm) larger in diameter than the metal pipe. 

(2) For unlisted appliances having draft hoods, the 
thimble shall be a minimum six (6) inches (150 
mm) larger in diameter than the metal pipe. 

(3) For residential and low-heat appliances, the 
thimble shall be a minimum twelve (12) inches 
(300 mm) larger in diameter than the metal 
pipe. 

Exception: In lieu of thimble protection, com- 
bustible material in the wall shall be removed a 
sufficient distance from the metal pipe to provide 
the specified clearance from such metal pipe to 
combustible material. Any material used to close 
up such opening shall be noncombustible. 

510.7.4.7 Where a single-wall metal pipe passes 
through a roof constructed of combustible material, 
a noncombustible, nonventilating thimble shall be 
used at the point of passage. The thimble shall ex- 
tend not less than eighteen (18) inches (460 mm) 
above and six (6) inches (150 mm) below the roof 
with the annular space open at the bottom and closed 
only at the top. The thimble shall be sized in accor- 
dance with Section 510.7.4.6. [NFPA 54: 12.8.4.5] 

510.7,5 Size of Single-Wall Metal Pipe. Single-wall 
metal piping shall comply with the following require- 
ments [NFPA 54:12.8.5]: 

510.7.5.1 A venting system of a single-wall metal 
pipe shall be sized in accordance with one of the fol- 
lowing methods and the gas appliance manufac- 1 
turer's instructions [NFPA 54:12.8.5(1)]: 

(1) For a draft-hood-equipped appliance, in accor- 
dance with this chapter. [NFPA 54: 12. 8.5(1 )(a)] 



TABLE 5-3 
CLEARANCE FOR CONNECTORS [NFPA 54: TABLE 12.8.4.4] 



MINIMUM DISTANCE FROM COMBUSTIBLE MATERIAL 


APPLIANCE 


LISTED TYPE EGAS 
VENT MATERIAL 


LISTED TYPE L VENT 
MATERIAL 


SINGLE-WALL 
METAL PIPE 


FACTORY-BUILT 
CHIMNEY SECTIONS 


Listed appliances with draft hoods and appliances listed 
for use with Type B gas vents 


As listed 


As listed 


6 in. 


As listed 


Residential boilers and furnaces with listed gas conver- 
sion burner and with draft hood 


6 in. 


6 in. 


9 in. 


As Hsted 


Residential appliances listed for use with Type L vents 


Not permitted 


As listed 


9 in. 


As listed 


Listed gas-fired toilets 


Not permitted 


As listed 


As listed 


As listed 


Unlisted residential appliances with draft hood 


Not permitted 


6 in. 


9 in. 


As listed 


Residential and low-heat appliances other than those 
above 


Not permitted 


9 in. 


18 in. 


As listed 


Medium-heat appliances 


Not permitted 


Not permitted 


36 in. 


As Hsted 



For SI units, 1 in.= 25.4 mm. 

Note: These clearances shall apply unless the listing of an appliance or connector specifies clearances, in which case the listed clearances shall apply. 



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TABLE 5-4 
REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION [NFPA 54: TABLE 10.2.3(b)] 



WHERE THE REQUIRED CLEARANCE WITH NO PROTECTION FROM APPLIANCE, VENT CONNECTOR, OR SINGLE-WALL METAL PIPE IS: 


36 in. 


18 in. 


12 in. 


9 in. 


6 in. 


ALLOWABLE CLEARANCES WITH SPECIFIED PROTECTION (in.) 


TYPE OF PROTECTION APPLIED 
TO AND COVERING SURFACES 
OF COMBUSTIBLE MATERIAL 
WITHIN THE DISTANCE SPECI- 
FIED AS THE REQUIRED CLEAR- 
ANCE WITH NO PROTECTION 
[SEE FIGURES 5-4 THROUGH 5-6] 


USE COLUMN 1 FOR CLEARANCE ABOVE APPLIANCE OR HORIZONTAL CONNECTOR. 
COLUMN 2 FOR CLEARANCES FROM APPLIANCES, VERTICAL CONNECTOR, AND SINGLE-WALL METAL PIPE 


ABOVE 
COLUMN 1 


SIDES AND 

REAR 
COLUMN 2 


ABOVE 
COLUMN 1 


SIDES AND 

REAR 
COLUMN 2 


ABOVE 
COLUMN 1 


SIDES AND 

REAR 
COLUMN 2 


ABOVE 
COLUMN 1 


SIDES AND 

REAR 
COLUMN 2 


ABOVE 
COLUMN 1 


SIDES AND 

REAR 
COLUMN 2 


(1) 3^2 in. thick masonry 
wall without ventilated 
air space 


-- 


24 


-- 


12 


-- 


9 


-- 


6 


- 


5 


(2) Vi in. insulation board 
over 1 in. glass fiber or 
mineral wool batts 


24 


18 


12 


9 


9 


6 


6 


5 


4 


3 


(3) 0.024 sheet metal over 1 
in. glass fiber or mineral 
wool batts reinforced with 
wire on rear face with 
ventilated air space 


18 


12 


9 


6 


6 


4 


5 


3 


3 


3 


(4) 3 Vi in. thick masonry wall 
with ventilated air space 


- 


12 


- 


6 


-- 


6 


-- 


6 


-- 


6 


(5) 0.024 sheet metal with 
ventilated air space 


18 


12 


9 


6 


6 


4 


5 


3 


3 


2 


(6) Vi in. thick insulation 
board with ventilated air 
space 


18 


12 


9 


6 


6 


4 


5 


3 


3 


3 


(7) 0.024 sheet metal with 
ventilated air space over 
0.024 sheet metal with 
ventilated air space 


18 


12 


9 


6 


6 


4 


5 


3 


3 


3 


(8) 1 in. glass fiber or mineral 
wool batts sandwiched 
between two sheets 0.024 
sheet metal with venti- 
lated air space 


18 


12 


9 


6 


6 


4 


5 


3 


3 


3 



For SI units, 1 in. = 25.4 mm. 

Notes: 

1 Reduction of clearances from combustible materials shall not interfere with combustion air, draft hood clearance and relief, and accessibility of servicing. 

^ Clearances shall be measured from the outer surface of the combustible material to the nearest point on the surface of the appliance, disregarding any in- 
tervening protection applied to the combustible material. 

^ Spacers and ties shall be of noncombustible material. No spacer or tie shall be used directly opposite the appliance or connector. 

^ Where clearance reduction systems use a ventilated air space, adequate provision for air circulation shall be provided as described. [See Figure 5-5 and 
Figure 5-6.] 

^ There shall be at least one (1) in. (25 mm) between clearance reduction systems and combustible walls and ceilings for reduction systems using a venti- 
lated air space. 

^ Where a wall protector is mounted on a single flat wall away from comers, it shall have a minimum one (1) inch (25 mm) air gap. To provide adequate air 
circulation, the bottom and top edges, or only the side and top edges, or edges shall be left open. 

^ Mineral wool batts (blanket or board) shall have a minimum density of eight (8) Ib/ft.^ (128 kg/m^) and a minimum mehing point of 1500°F (816°C). 

^ Insulation material used as part of a clearance reduction system shall have a thermal conductivity of 1 .0 Btu in./ftVh-°F (0. 144 W/m-K) or less. 

^ There shall be at least (1) inch (25 mm) between the appliance and the protector. In no case shall the clearance between the appliance and the combustible 
surface be reduced below that allowed in this table. 

1° Clearances and thicknesses are minimum; larger clearances and thicknesses are acceptable. 

^' Listed single-wall connectors shall be installed in accordance with the terms of their listing and the manufacturer's instructions. 



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Construction using combustible — s 
material, plastered or unplastered 



m: 



w 



1 



IT 



w 



:k 





Sheet metal or 
other protection 

<— Gas equipment 
or vent connector 



Notes: 

A- Equals the clearance with no protection specified in Tables 5-3 and 5-4 
I and in the sections applying to various types of appliances. 

B - Equals the reduced clearance permitted in accordance with Table 5-3. 
The protection applied to the construction using combustible material shall 
extend far enough in each direction to make C equal to A. 

FIGURE 5-4 EXTENT OF PROTECTION NECESSARY TO 
I REDUCE CLEARANCES FROM GAS APPLIANCES OR VENT 
CONNECTORS [NFPA 54: FIGURE 10.3.2.2(1)] 



Mounted with side 
and top edges open 



Mounted with top 
and bottom edges 
open 



Wall protector mounted 
on single flat wall 




Wall protector installed in corner 



Must be mounted with top 
and bottom edges open 



Combustible 
wall 




- Nail or screw anchor 



~ Clearance 
reduction system 



1 in. (25 mm) nonpombustible 
spacer such as stacked washers, 
small-diameter pipe, tubing, or 
electrical conduit. 

Masonry walls can be attached to combustible walls using wall ties. Spac- 
ers should not be used directly behind appliance or connector. 

FIGURE 5-5 WALL PROTECTION REDUCTION SYSTEM. 
[NFPA 54:FIGURE 10.3.2.2(2)] 



Combustible wall 



1 in. {25.4 mm) 
minimum air space 
between masonry 
and combustible wall 



4 in. (102 mm) 
nominal brick wall 



Bottom and top course 
of bricks staggered for 
ventilation 




Corrugated 
metal wail 
lies 



A strip of heavy-gauge steel 
used for added support 

Note: Do not place masonry wall ties directly 
behind appliance or connector. 




Masonry wall tie 



FIGURE 5-6 MASONRY CLEARANCE REDUCTION SYSTEM. 
[NFPA 54: FIGURE 10.3.2.2(3)] 

(2) For a venting system for a single appliance with 
a draft hood, the areas of the connector and the 
pipe each shall be at least the area of the appli- 
ance flue collar or draft hood outlet, whichever 
is smaller. The vent area shall not exceed seven 
(7) times the draft hood outlet area. [NFPA 
54:12.8.5(l)(b)] 

(3) Other approved engineering methods. [NFPA 

54:12.8.5(l)(c)] 

510.7.5.2 Where a single-wall metal pipe is used and 
has a shape other than round, it shall have an equiv- 
alent effective area equal to the effective area of the 
round pipe for which it is substituted, and the inter- 1 
nal dimension of the pipe shall be at least two (2) 
inches (50 mm). [NFPA 54:12.8.5(2)] 

510.7.5.3 The vent cap or a roof assembly shall have 
a venting capacity at least that of the pipe to which 
it is attached. [NFPA 54:12.8.5(3)] 

510.7.6 Support of Single-Wall Metal Pipe. Portions | 
of single-wall metal pipe shall be supported for the de- 
sign and weight of the material employed. [NFPA 
54:12.8.6] 

510.7.7 Marking. Single-wall metal pipe shall comply 
with the marking provisions of Section 510.6.6. [NFPA 
54:12.8.7] 

510.8 Through-the-Wall Vent Termination (See Fig- 
ure 5-12). 

510.8.1 A mechanical draft venting system shall terminate 
at least three (3) feet (0.9 m) above any forced air inlet lo- 
cated within ten (10) feet (3.1 m). [NFPA 54:12.9.1] 

Exceptions: 

(1) This provision shall not apply to the combustion air 
intake of a direct-vent appHance. 



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(2) This provision shall not apply to the separation of 
the integral outdoor air inlet and flue gas discharge 
of Hsted outdoor appliances. 

510.8.2 A mechanical draft venting system of other than 
direct- vent type shall terminate at least four (4) feet (1.2 
m) below, four (4) feet (1 .2 m) horizontally from, or one 
(1) foot (300 mm) above any door, operable window, or 
gravity air inlet into any building. The bottom of the vent 
terminal shall be located at least twelve (12) inches (300 

I mm) above finished grade. [NFPA 54: 12.9.2] 

510.8.3 The vent terminal of a direct- vent appliance with an 
input of 10,000 Btu/h (3 kW) or less shall be located at least 
(6) inches (150 mm) from any air opening into a building, 
and such an appliance with an input over 10,000 Btu/h (3 
kW) but not over 50,000 Btu/h (14.7 kW) shall be installed 
with a nine (9) inch (230 mm) vent termination clearance, 
and an apphance with an input over 50,000 Btu/h (14.7 
kW) shall have at least a twelve (12) inch (300 mm) vent 
termination clearance. The bottom of the vent terminal and 
the air intake shall be located at least twelve (12) inches 

I (300 mm) above finished grade. [NFPA 54: 12.9.3] 

510.8.4 Through-the-wall vents for Category II and Cat- 
egory IV appliances and noncategorized condensing ap- 
pliances shall not terminate over public walkways or 
over an area where condensate or vapor could create a 
nuisance or hazard or could be detrimental to the opera- 
tion of regulators, relief valves, or other equipment. 
Where local experience indicates that condensate is a 
problem with Category I and Category III appliances, 
this provision shall also apply. 

I Drains for condensate shall be installed in accor- 

dance with the manufacturer's installation instructions. 
[NFPA 54-09: 12.9.4] 

510.8.5 Where vents, including those for du-ect-vent ap- 
pliances or combustion air intake pipes, penetrate outside 
walls of buildings, the annular spaces around such pene- 
trations shall be permanently sealed using approved ma- 
terials to prevent entry of combustion products into the 
building. [NFPA 54-09: 12.9.5] 

510.9 Condensation Drain, 

510.9.1 Provision shall be made to collect and dispose 
of condensate from venting systems serving Category II 

I and Category IV gas utilization appliances and noncate- 
gorized condensing appliances in accordance with Sec- 
tion 5 10.8.4. [NFPA 54:12.10.1] 

510.9.2 Where local experience indicates that condensa- 
tion is a problem, provision shall be made to drain off 
and dispose of condensate from venting systems serving 

I Category I and Category III gas utilization appliances in 
accordance with Section 510.8.4. [NFPA 54: 12.10.2] 

1510.10 Vent Connectors for Category I Gas Utilization Ap- 
pliances. 

510.10.1 Where Required. A vent connector shall be used 
I to connect gas utilization appliances to a gas vent, chim- 
ney, or single-wall metal pipe, except where the gas vent, 
chimney, or single-wall metal pipe is directly connected 
I to the appliance. [NFPA 54: 12. 11.1] 



510.10.2 Materials. 

510.10.2.1 A vent connector shall be made of non- 
combustible, corrosion resistant material capable of 
withstanding the vent gas temperature produced by the 
gas utilization appliance and of sufficient thickness to 
withstand physical damage. [NFPA 54: 12. 11.2.1] 

510.10.2.2 Where the vent connector used for gas 
utilization appliances having a draft hood or a Cat- 1 
egory I appliance is located in or passes through an 
unconditioned area, that portion of the vent connec- 
tor shall be listed Type B, Type L, or hsted vent ma- 
terial having equivalent insulation qualities. [NFPA 
54:12.11.2.2] 

Exception: Single- wall metal pipe located within 
the exterior walls of the building and located in areas 
having a local 99 percent winter design temperature 
of5'^F(-15°C) or higher. 

510.10.2.3 Where the vent connector used for gas 
utilization appliances having a draft hood or a Cat- 1 
egory I appliance is located in or passes through at- 
tics and crawl spaces, that portion of the vent 
connector shall be listed Type B, Type L, or listed 
vent material having equivalent insulation qualities. 
[NFPA 54:12.11.2.3] 

510.10.2.4 Vent connectors for residential-type ap- 
pliances shall comply with the following [NFPA 
54:12.11.2.4]: 

(1) Vent connectors for listed gas appliances hav- 
ing draft hoods and for appliances having draft 
hoods and equipped with listed conversion 
burners that are not installed in attics, crawl 
spaces, or other unconditioned areas shall be 
one of the following [NFPA 54:12.11.2.4(1)]: 

(a) Type B or Type L vent material. 

(b) Galvanized sheet steel at least 0.018 inches 
(0.46 mm) thick. 

(c) Aluminum (1100 or 3003 alloy or equiva- 
lent) sheet at least 0.027 inches (0.69 mm) 
thick. 

(d) Stainless steel sheet at least 0.012 inches 
(0.31 mm) thick. 

(e) Smooth interior wall metal pipe having re- 
sistance to heat and corrosion equal to or 
exceeding that of b, c, or d above. 

(f) A listed vent connector. 

(2) Vent connectors shall not be covered with insu- 
lation. 

Exception: Listed insulated vent connectors 
shall be installed in accordance with the manu- 
facturer's installation instructions. [NFPA 

54:12.11.2.4(2)] 

510.10.2.5 A vent connector for non-residential low- 
heat appliance shall be a factory-built chimney sec- 
tion or steel pipe having resistance to heat and 
corrosion equivalent to that for the appropriate gal- 
vanized pipe as specified in Table 5-5 . Factory-built 



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chimney sections shall be joined together in accor- 
dance with the chimney manufacturer's instructions. 

[NFPA 54: 12.1 1.2.5] 

TABLE 5-5 

MINIMUM THICKNESS FOR GALVANIZED STEEL VENT 

CONNECTOR FOR LOW-HEAT APPLIANCES 

[NFPA 54:TABLE 12.11.2.5] 



DIAMETER OF CONNECTOR 
(in.) 


MINIMUM THICKNESS 
(in.)* 


Less than 6 


0.019 


6 to less than 10 


0.023 


10 to 12 inclusive 


0.029 


14 to 16 inclusive 


0.034 


Over 16 


0.056 



* For SI units, 1 in. = 25.4 mm; 1 in.^ = 645 mm^. 

510.10.2.6 Vent connectors for medium-heat appli- 
ances and commercial and industrial incinerators 
shall be constructed of factory-built, medium-heat 
chimney sections or steel of a thickness at least that 
specified in Table 5-6 and shall comply with the fol- 
lowing [NFPA 54: 12. 1 1 .2.6]: 

(1) A steel vent connector for appliances with a 
vent gas temperature exceeding 1,000°F 
(538°C) measured at the entrance to the con- 
nector shall be lined with medium-duty fire 
brick (ASTM C 64, Specification for Refracto- 
ries for Incinerators and Boilers, Type F) or the 
equivalent. 

(2) The lining shall be at least two and one-half 
(2/4) inches (64 mm) thick for a vent connector 
having a diameter or greatest cross-sectional di- 
mension of eighteen (18) inches (460 mm) or 
less. 

(3) The lining shall be at least four and one-half 
{AVi) inches (110 mm) thick laid on the four and 
one-half {AVi) inch (110 mm) bed for a vent 
connector having a diameter or cross-sectional 
dimension exceeding eighteen (18) inches (460 
mm). 

(4) Factory-built chimney sections, if employed, 
shall be joined together in accordance with the 
chimney manufacturer's instructions. 

TABLE 5-6 

MINIMUM THICKNESS FOR STEEL VENT CONNECTORS FOR 

MEDIUM-HEAT APPLIANCES AND COMMERCIAL AND 

INDUSTRIAL INCINERATORS 

[NFPA 54: TABLE 12.11.2.6] 



VENT CONNECTOR SIZE 


DIAMETER (in.) 


AREA (in.2) 


MINIMUM 
THICKNESS (in.) 


Up to 14 


Up to 154 


0.053 


Over 14 to 16 


154 to 201 


0.067 


Over 16 to 18 


201 to 254 


0.093 


Over 18 


Exceeding 254 


0.123 



For SI units, 1 in. = 25.4 mm; 1 in.^ = 645 mm^. 



510.10.3 Size of Vent Connector. 

510.10.3.1 A vent connector for gas utilization ap- 
pliances with a single draft hood or for a Category I 
fan-assisted combustion system appliance shall be 
sized and installed in accordance with this chapter 
or other approved engineering methods. [NFPA 
54:12.11.3.1] 

510.10.3.2 For a single appliance having more than 
one (1) draft hood outlet or flue collar, the manifold 
shall be constructed according to the instructions of 
the appliance manufacturer. Where there are no in- 
structions, the manifold shall be designed and con- 
structed in accordance with approved engineering 
practices. As an alternate method, the effective area 
of the manifold shall equal the combined area of the 
flue collars or draft hood outlets, and the vent con- 
nectors shall have a minimum one (1) foot (0.3 m) 
rise. [NFPA 54: 12. 11.3.2] 

510.10.3.3 Where two (2) or more gas appliances 
are connected to a common vent or chimney, each 
vent connector shall be sized in accordance with this 
chapter or other approved engineering methods. 
[NFPA 54:12.11.3.3] As an alternative method ap- 
plicable only when the appliances are draft-hood- 
equipped, each vent connector shall have an 
effective area at least the area of the draft hood out- 
let of the appliance to which it is connected. [NFPA 
54:12.11.3.4] 

510.10.3.4 Where two (2) or more gas appliances 
are vented through a common vent connector or vent 
manifold, the common vent connector or vent man- 
ifold shall be located at the highest level consistent 
with available head-room and clearance to com- 
bustible material and shall be sized in accordance 
with this chapter or other approved engineering 
methods. [NFPA 54: 12. 11.3.5] 

As an alternate method applicable only where 
there are two (2) draft-hood- equipped appliances, 
the effective area of the common vent connector or 
vent manifold and junction fittings shall be at least 
the area of the larger vent connector plus 50 percent 
of the areas of smaller flue collar outlets. [NFPA 
54:12.11.3.6] 

510.10.3.5 Where the size of a vent connector is in- 
creased to overcome installation limitations and ob- 
tain connector capacity equal to the appliance input, 
the size increase shall be made at the appliance draft 
hood outlet. [NFPA 54: 12. 11.3.7] 

510.10.4 Two or More Appliances Connected to a Sin- 
gle Vent. 

510.10.4.1 Where two (2) or more openings are pro- 
vided into one (1) chimney flue or vent, the openings 
shall either be at different levels, or the connectors 
shall be attached to the vertical portion of the chim- 
ney or vent at an angle of 45 degrees or less relative 
to the vertical. [NFPA 54-09: 12. 1 1 .4. 1] 



2010 CALIFORNIA PLUMBING CODE 



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510.10.4.2 Where two (2) or more vent connectors 
enter a common gas vent, chimney flue, or single- 
wall metal pipe, the smaller connector shall enter at 
the highest level consistent with the available head- 
room or clearance to combustible material. [NFPA 
54:12.11.4.1] 

510.10.4.3 Vent connectors serving Category I appli- 
ances shall not be connected to any portion of a me- 
chanical draft system operating under positive static 
pressure, such as those serving Category III or Cate- 
gory IV appliances. [NFPA 54:12.1 1.4.2] 

510.10.5 Clearance. Minimum clearances from vent con- 
nectors to combustible material shall be in accordance 
with Table 5-3. [NFPA 54: 12. 11.5] 

Exception: The clearance between a vent connector and 
combustible material shall be permitted to be reduced 
where the combustible material is protected as specified 
for vent connectors in Table 5-4. 

510.10.6 Avoid Unnecessary Bends. A vent connector 
shall be installed so as to avoid turns or other construction 
features that create excessive resistance to flow of vent 

gases. [NFPA 54: 12.1 1.6] 

510.10.7 Joints. Joints between sections of connector pip- 
ing and connections to flue collars or draft hood outlets 
shall be fastened in accordance with one of the following 
methods [NFPA 54: 12. 11. 7]: 

( 1 ) By sheet metal screws. 

(2) Vent connectors of listed vent material shall be as- 
sembled and connected to flue collars or draft hood 
outlets in accordance with the manufacturer's instruc- 
tions. 

(3) Other approved means. 

510.10.8 Slope. A vent connector shall be installed with- 
out any dips or sags and shall slope upward toward the 
vent or chimney not less than one-quarter (V^) inch/foot 
(20mmym). [NFPA 54:12.11.8] 

Exception: Vent connectors attached to a mechanical draft 
system installed in accordance with the appliance and draft 
system manufacturer's instructions. 

510.10.9 Length of Vent Connector. 

510.10.9.1 A vent connector shall be as short as 
practical and the gas utilization appliance located 
as close as practical to the chimney or vent. [NFPA 
54:12.11.9.1] 

510.10.9.2 The maximum horizontal length of a sin- 
gle-wall connector shall be 75 percent of the height 
of the chimney or vent except for engineered sys- 
tems. [NFPA 54-09:12.11.9.2] 

510.10.9.3 The maximum horizontal length of a 
Type B double-wall connector shall be 1 00 percent 
of the height of the chimney or vent, except for en- 
gineered systems. The maximum length of an indi- 
vidual connector for a chimney or vent system 
serving multiple appliances, from the appliance out- 
let to the junction with the common vent or another 
connector, shall be 100 percent of the height of the 
chimney or vent. [NFPA 54:12.1 1.9.3] 



510.10.10 Support. A vent connector shall be supported 
for the design and weight of the material employed to 
maintain clearances and prevent physical damage and 
separation of joints. [NFPA 54: 12.1 1. 10] 

510.10.11 Chimney Connection. Where entering a flue 
in a masonry or metal chimney, the vent connector shall 
be installed above the extreme bottom to avoid stoppage. 
Where a thimble or slip joint is used to facilitate removal 
of the connector, the connector shall be firmly attached 
to or inserted into the thimble or slip joint to prevent the 
connector from falling out. Means shall be employed to 
prevent the connector from entering so far as to restrict 
the space between its end and the opposite wall of the 
chimney flue. [NFPA 54:12.11.11] 

510.10.12 Inspection. The entire length of a vent con- 
nector shall be readily accessible for inspection, clean- 
ing, and replacement. [NFPA 54:12.11.12] 

510.10.13 Fireplaces. A vent connector shall not be con- 
nected to a chimney flue serving a fireplace unless the 
fireplace flue opening is permanently sealed. [NFPA 
54:12.11.13] 

510.10.14 Passage through Ceilings, Floors, or Walls. 

510.10.14.1 A vent connector shall not pass through 
any ceiling, floor, or fire-resistance-rated wall. A sin- 
gle-wall metal pipe connector shall not pass through 
any interior wall. 

Exception: Vent connectors made of listed Type B or 
Type L vent material and serving listed apphances 
with draft hoods and other appliances listed for use 
with Type B gas vents that pass through walls or par- 
titions constructed of combustible material shall be 
installed with not less than the listed clearance to 
combustible material. 

510.10.14.2 Vent connectors for medium-heat ap- T 
pliances shall not pass through walls or partitions I 
constructed of combustible material. [NFPA 
54:12.11.14.3] 

510.11 Vent Connectors for Category II, Category III, and 
Category IV Gas Utilization Appliances (See Section] 
510.4). [NFPA 54:12.12] 

510.12 Draft Hoods and Draft Controls. 

510.12.1 Appliances Requiring Draft Hoods. Vented 
gas utilization appliances shall be installed with draft 
hoods. [NFPA54:12.13.1] 

Exception: Dual oven-type combination ranges; incin- 
erators; direct-vent appliances; fan-assisted combustion 
system appliances; appliances requiring chimney draft 
for operation; single firebox boilers equipped with con- 
version burners with inputs exceeding 400,000 Btu/h 
(117 kW); apphances equipped with blast, power, or 
pressure burners that are not listed for use with draft 
hoods; and appliances designed for forced venting. 

510.12.2 Installation. A draft hood supplied with or 
forming a part of listed vented gas utilization appliances 



90 



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WATER HEATERS 



shall be installed without alteration, exactly as furnished 
I and specified by the appliance manufacturer. [NFPA 
54:12.13.2] 

I If a draft hood is not supplied by the appliance man- 

ufacturer where one (1) is required, a draft hood shall be 
installed, be of a Hsted or approved type, and, in the ab- 

Isence of other instructions, be of the same size as the ap- 
pliance flue collar. Where a draft hood is required with a 
conversion burner, it shall be of a listed or approved type. 
[NFPA54:12.13.2.1] 

Where it is determined that a draft hood of special 
design is needed or preferable for a particular installa- 
tion, the installation shall be in accordance with the rec- 
I ommendations of the appliance manufacturer and shall 
be approved by the Authority Having Jurisdiction. 
[NFPA 54:12.13.2.2] 

510.12.3 Draft-Control Devices. Where a draft-control 

I device is part of the gas utilization appliance or is sup- 
plied by the appliance manufacturer, it shall be installed 
in accordance with the manufacturer's instructions. In the 
absence of manufacturer's instructions, the device shall 
be attached to the flue collar of the appliance or as near 
to the appliance as practical. [NFPA 54:12.13.3] 

I 510.12.4 Additional Devices. Gas utilization appliances 
(except incinerators) requiring controlled chimney draft 
shall be permitted to be equipped with a listed double- 
acting barometric draft regulator installed and adjusted 
in accordance with the manufacturer's instructions. 
[NFPA 54: 12. 13.4] 

510.12.5 Location. Draft hoods and barometric draft reg- 
ulators shall be installed in the same room or enclosure 

I as the appliance in such a manner as to prevent any dif- 
ference in pressure between the hood or regulator and the 
combustion air supply. [NFPA 54: 12. 13.5] 

510.12.6 Positioning. Draft hoods and draft regulators 
shall be installed in the position for which they were de- 
signed with reference to the horizontal and vertical 
planes and shall be located so that the relief opening is 
not obstructed by any part of the appliance or adjacent 
construction. The appliance and its draft hood shall be 
located so that the relief opening is accessible for check- 
ing vent operation. [NFPA 54: 12. 13.6] 

510.12.7 Clearance. A draft hood shall be located so that 
its relief opening is at least six (6) inches (150 mm) from 

I any surface except that of the appliance it serves and the 
venting system to which the draft hood is connected. 
Where a greater or lesser clearance is indicated on the 

I appliance label, the clearance shall not be less than that 
specified on the label. Such clearances shall not be re- 
duced. [NFPA 54:12.13.7] 

510.13 Manually Operated Dampers. A manually operated 
I damper shall not be placed in any appliance vent connector. 

Fixed baffles shall not be classified as manually operated 
dampers. [NFPA 54: 12. 14] 

510.14 Automatically Operated Vent Dampers. An auto- 
matically operated vent damper shall be of a listed type. 
[NFPA 54:12.15] 



510.15 Obstructions. Devices that retard the flow of vent 
gases shall not be installed in a vent connector, chimney, or 
vent. The following shall not be considered as obstructions 
[NFPA 54:12.16]: 

( 1 ) Draft regulators and safety controls specifically listed for 
installation in venting systems and installed in accor- 
dance with the terms of their Hsting. 

(2) Approved draft regulators and safety controls designed 
and installed in accordance with approved engineering 
methods. 

(3) Listed heat reclaimers and automatically operated vent 
dampers installed in accordance with the terms of their 
listing. 

(4) Vent dampers serving listed appliances installed in ac- 
cordance with this chapter or other approved engineering 
methods. 

(5) Approved economizers, heat reclaimers, and recupera- 
tors installed in venting systems of appliances not re- 1 
quired to be equipped with draft hoods, provided the gas 
utilization appliance manufacturer's instructions cover | 
the installation of such a device in the venting system 
and performance in accordance with Sections 510.3.1 
and 510.3.2 is obtained. 



511.0 Sizing of Category I Venting Systems. 

511.1 These venting tables shall not be used where obstruc- 
tions (See Section 5 10.15) are installed in the venting system. 
The installation of vents serving listed appliances with vent 
dampers shall be in accordance with the appliance manufac- 
turer's instructions or in accordance with the following 
[NFPA54:13.1.1]: 

(1) The maximum capacity of the vent system shall be de- 
termined using the NAT Max column. 

(2) The minimum capacity shall be determined as though the 
appliance were a fan-assisted appliance, using the FAN 
Min column to determine the minimum capacity of the 
vent system. Where the corresponding "FAN Min" is 
"NA" the vent configuration shall not be permitted and 
an alternative venting configuration shall be utiHzed. 

511.1.1 Where the vent size determined from the tables 
is smaller than the appliance draft hood outlet or flue col- 
lar, the use of the smaller size shall be permitted provided 
that the installation complies with the following require- 
ments [NFPA 54:13.1.2]: 

(1) The total vent height (H) is at least ten (10) feet (3 
m). 

(2) Vents for appliance draft hood outlets or flue collars 
twelve (12) inches (300 mm) in diameter or smaller 
are not reduced more than one (I) table size. 

(3) Vents for appliance draft hood outlets or flue collars 
exceeding twelve (12) inches (300 mm) in diameter 
are not reduced more than two (2) table sizes. 

(4) The maximum capacity listed in the tables for a fan-as- 
sisted appUance is reduced by 10 percent (0.90 maxi- 
mum table capacity). 



2010 CALIFORNIA PLUMBING CODE 



91 



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(5) The draft hood outlet exceeds four (4) inches (100 
mm) in diameter. Do not connect a three (3) inch (80 
mm) diameter vent to a four (4) inch (100 mm) diam- 
eter draft hood outiet. This provision shall not apply to 
fan-assisted appliances. 

511.1.2 Elbows. Single-appliance venting configurations 
with zero (0) lateral lengths in Tables 5-8, 5-9, and 5-12 
shall have no elbows in the venting system. Single-ap- 
pliance venting with lateral lengths, include allowance 
for two (2) 90 degree elbows. For each additional elbow 
up to and including 45 degrees, the maximum capacity 
listed in the venting tables shall be reduced by 5 percent. 
For each additional elbow exceeding 45 degrees up to 
and including 90 degrees, the maximum capacity listed 
in the venting tables shall be reduced by 10 percent. 
[NFPA54:13.1.3] 

Where multiple offsets occur in a vent, the total lat- 
eral length of all offsets combined shall not exceed that 
specified in Tables 5-8 through 5-12. [NFPA 54- 
09:13.1.3] 

511.1.3 Zero (0) lateral (L) shall apply only to a straight 
vertical vent attached to a top outlet draft hood or flue 
collar. [NFPA 54: 13.1.4] 

511.1.4 Sea level input ratings shall be used when deter- 
mining maximum capacity for high-altitude installation. 
Actual input (derated for altitude) shall be used for de- 
termining minimum capacity for high-altitude installa- 
tion. [NFPA 54:13.1.5] 

511.1.5 For appliances with more than one (1) input rate, 
the minimum vent capacity (FAN Min) determined from 
the tables shall be less than the lowest appliance input 
rating, and the maximum vent capacity (FAN Max/NAT 
Max) determined from the tables shall exceed the high- 
est appliance rating input. [NFPA 54:13.1.6] 

511.1.6 Listed corrugated metaUic chimney liner systems 
in masonry chimneys shall be sized by using Tables 5-8 
or 5-9 for Type B vents with the maximum capacity re- 
duced by 20 percent (0.80 maximum capacity) and the 
minimum capacity as shown in Tables 5-8 or 5-9. 

Corrugated metallic liner systems installed with 
bends or offsets shall have their maximum capacity fur- 
ther reduced in accordance with Section 511.1.2. The 20 
percent reduction for corrugated metallic chimney liner 
systems includes an allowance for one (1) long radius 90 
degree turn at the bottom of the liner. [NFPA 54: 13.1 .7] 

511.1.7 Connection to Chimney Liners. Connections 
between chimney liners and Hsted double-wall connec- 
tors shall be made with listed adapters designed for such 
purposes. [NFPA 54: 13. 1.8] 

511.1.8 Vertical Vent Upsizing 7 x Rule. Where the ver- 
tical vent has a larger diameter than the vent connector, 
the vertical vent diameter shall be used to determine the 
minimum vent capacity, and the connector diameter shall 
be used to determine the maximum vent capacity. The 



flow area of the vertical vent shall not exceed seven (7) 
times the flow area of the listed appliance categorized 
vent area, flue collar area, or draft hood outlet area unless 
designed in accordance with approved engineering meth- 
ods. [NFPA 54:13.1,9] 

511.1.9 Draft Hood Conversion Accessories. Draft 
hood conversion accessories for use with masonry chim- 
neys venting listed Category I fan-assisted appliances 
shall be listed and installed in accordance with the listed 
accessory manufacturer's installation instructions. 
[NFPA 54:13.1.10] 

511.1.10 Tables 5-8 through 5-12 shall be used for chim- 
neys and vents not exposed to the outdoors below the 
roof line. A Type B vent or listed chimney lining system 
passing through an unused masonry chimney flue shall 
not be considered to be exposed to the outdoors. A Type 
B vent passing through an unventilated enclosure or 
chase insulated to a value of at least R8 shall not be con- 
sidered to be exposed to the outdoors. Table 5-10 in com- 
bination with Table 5-13 shall be used for clay-tile-lined 
exterior masonry chimneys, provided the following are 
met [NFPA 54:13.1.11]: 

(1) The vent connector is Type B double wall. 

(2) The vent connector length is limited to one and one- 
half (l!/2) feet for each inch (18 mm/mm) of vent 
connector diameter. 

(3) The appliance is draft-hood-equipped. 

(4) The input rating is less than the maximum capacity 
given in Table 5-10. 

(5) For a water heater, the outdoor design temperature 
shall be not less than 5T (-15°C). 

(6) For a space-heating appliance, the input rating ex- 
ceeds the minimum capacity given by Table 5-13. 

511.1.11 Corrugated vent connectors shall not be smaller " 
than the listed appliance categorized vent diameter, flue 
collar diameter, or draft hood outlet diameter, [NFPA 
54:13.1.12] 

511.1.12 Vent connectors shall not be upsized more than 
two (2) sizes exceeding the listed appliance categorized 
vent diameter, flue collar diameter, or draft hood outlet 
diameter. [NFPA 54: 13. 1.13] 

511.1.13 In a single run of vent or vent connector, more 
than one (1) diameter and type shall be permitted to be 
used, provided that the sizes and types are permitted by 
the tables. [NFPA 54:13.1.14] 

511.1.14 Interpolation shall be permitted in calculating 
capacities for vent dimensions that fall between table en- 
tries (See Part II-Example G.1.3). [NFPA 54:13.1.15] 

511.1.15 Extrapolation beyond the table entries shall not 
be permitted. [NFPA 54:13.1.16] 

511.1.16 For vent heights lower than six (6) feet and ex- 
ceeding vent heights shown in the tables, engineering 
methods shall be used to calculate vent capacities. [NFPA 

54:13.1.17] 



92 



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511.2 Additional Requirements to Multiple Appliance 
Vent Table 5-14 through Table 5-22. 

511.2.1 Obstructions and Vent Damper. These venting 
tables shall not be used where obstructions (See Section 
510.15) are installed in the venting system. The installa- 
tion of vents serving listed appliances with vent dampers 
shall be in accordance with the appliance manufacturer's 
instructions or in accordance with the following [NFPA 
54:13.2.1]: 

(1) The maximum capacity of the vent connector shall 
be determined using the NAT Max column. 

(2) The maximum capacity of the vertical vent or chim- 
ney shall be determined using the FAN + NAT col- 
umn when the second appliance is a fan-assisted 
appliance, or the NAT + NAT column when the sec- 
ond appliance is equipped with a draft hood. 

(3) The minimum capacity shall be determined as if the 
appliance were a fan-assisted appliance. 

(a) The minimum capacity of the vent connector 
shall be determined using the FAN Min column. 

(b) The FAN + FAN column shall be used when the 
second appliance is a fan-assisted appliance, 
and the FAN + NAT column shall be used when 
the second appliance is equipped with a draft 
hood, to determine whether the vertical vent or 
chimney configuration is not permitted (NA). 
Where the vent configuration is NA, the vent 
configuration shall not be permitted and an al- 
ternative venting configuration shall be utilized. 

511.2.2 The vent connector horizontal length shall be 
eighteen (18) inches/inch (18 mm/mm) of connector di- 
ameter as shown in Table 5-7. [NFPA 54: 13.2.2] 

511.2.3 The vent connector shall be routed to the vent 
utilizing the shortest possible route. Connectors with 
longer horizontal lengths than those listed in Table 5-7 
are permitted under the following conditions [NFPA 

54:13.2.3]: 

(A) The maximum capacity (FAN Max or NAT Max) of 
the vent connector shall be reduced 10 percent for 
each additional multiple of the length listed in Table 
5-7. For example, the length Hsted for a four (4) inch 
(100 mm) connector shall not exceed six (6) feet (1.8 
m). With a connector length exceeding six (6) feet 
(1.8 m) but not exceeding twelve (12) feet (3.7 m), 
the maximum capacity must be reduced by 10 per- 
cent (0.90 maximum vent connector capacity). With 
a connector length exceeding twelve (12) feet (3.7 
m) but not exceeding eighteen (18) feet (5.5 m), the 
maximum capacity must be reduced by 20 percent 
(0.80 maximum vent capacity) [NFPA 54: 1 3.2.3(1)]. 

(B) For a connector serving a fan-assisted appliance, the 
minimum capacity (FAN Min) of the connector shall 
be determined by referring to the corresponding sin- 
gle appliance table. For Type B double-wall con- 
nectors, Table 5-8 shall be used. For single-wall 
connectors. Table 5-9 shall be used. The height (H) 
and lateral (L) shall be measured according to the 



procedures for a single appliance vent, as if the other 
appHances were not present. [NFPA 54: 13.2.3(2)] 

TABLE 5-7 

VENT CONNECTOR MAXIMUM LENGTH 

[NFPA 54:TABLE 13.2.2] 



CONNECTOR DIAMETER 
MAXIMUM (in.) 


CONNECTOR HORIZONTAL 
LENGTH (ft.) 


3 


4/2 


4 


6 


5 


iVi 


6 


9 


7 


lOVi 


8 


12 


9 


13^2 


10 


15 


12 


18 


14 


21 


16 


24 


18 


27 


20 


30 


22 


33 


24 


36 



For SI units, 1 in. = 25.4 mm; 1 ft. = 0.305 m. 

511.2.4 Where the vent connectors are combined prior to 
entering the vertical portion of the common vent to form 
a common vent manifold, the size of the common vent 
manifold and the common vent shall be determined by 
applying a 10 percent reduction (.90 x maximum com- 
mon vent capacity) to the Common Vent Capacity part 
of the common vent tables. The length of the common 
vent connector manifold (LM) shall not exceed eighteen 
(18) inches/inch (18 mm/mm) of common vent connec- 
tor manifold diameter (D) (See Part II-Figure G.l(k)). 
[NFPA 54: 13.2.4] 

511.2.5 Vent Offset. Where the common vertical vent is 
offset, the maximum capacity of the common vent shall 
be reduced in accordance with Section 511.2.6, and the 
horizontal length of the common vent offset shall not ex- 
ceed eighteen (18) inches/inch (18 mm/mm) of common 
vent diameter. Where multiple offsets occur in a com- 
mon vent, the total horizontal length of offsets combined 
shall not exceed eighteen (18) inches/inch (18 mm/mm) 
of common vent diameter. [NFPA 54:13.2.5] 

511.2.6 For each elbow up to and including 45 degrees in 
the common vent, the maximum common vent capacity 
listed in the venting tables shall be reduced by 5 percent. 
For each elbow exceeding 45 degrees up to and includ- 
ing 90 degrees, the maximum common vent capacity 
listed in the venting tables shall be reduced by 10 per- 
cent. [NFPA 54: 13.2.6] 

511.2.7 Common Vent Minimum Size. The cross-sec- 
tional area of the common vent shall be equal to or ex- 
ceeding the cross-sectional area of the largest connector. 
[NFPA 54:13.2.8] 



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511.2.8 Tee and Wye Fittings. Tee and wye fittings con- 
nected to a common gas vent shall be considered as part 
of the common gas vent and constructed of materials 
consistent with that of the common gas vent. [NFPA 54- 
09:13.2.9] 

511.2.9 At the point where tee or wye fittings connect to 
a common vent, the opening size of the fitting shall be 
equal to the size of the common vent. Such fittings shall 
not be prohibited from having reduced size openings at 
the point of connection of appliance vent connectors. 
[NFPA 54:13.2.10] 

511.2.10 Sea level input ratings shall be used when de- 
termining maximum capacity for high-altitude installa- 
tion. Actual input (derated for altitude) shall be used for 
determining minimum capacity for high-altitude instal- 
lation. [NFPA 54: 13.2. 11] 

511.2.11 The connector rise (R) for each appliance con- 
nector shall be measured from the draft hood outlet or 
flue collar to the centerline where the vent gas streams 
come together. [NFPA 54:13.2.12] 

511.2.12 For multiple units of gas utilization appliances 
located on one (1) floor, available total height (H) shall 
be measured from the highest draft hood outlet or flue 
collar up to the level of the outlet of the common vent. 
[NFPA 54: 13.2. 13] 

511.2.13 For multistory installations, available total 
height (H) for each segment of the system shall be the 
vertical distance between the highest draft hood outlet or 
flue collar entering that segment and the centerline of the 
next higher interconnection tee (See Part II-Figure 
G.l(m)). [NFPA 54:13.2.14] 

511.2.14 The size of the lowest connector and of the ver- 
tical vent leading to the lowest interconnection of a mul- 
tistory system shall be in accordance with Tables 5-8 or 
5-9 for available total height (H) up to the lowest inter- 
connection (See Part II-Figure G.l(n)). [NFPA 
54:13.2.15] 

511.2.15 Where used in multistory systems, vertical com- 
mon vents shall be Type B double- wall and shall be in- 
stalled with a hsted vent cap. [NFPA 54:13.2.16] 

511.2.16 Offsets in multistory common vent systems 
shall be limited to a single offset in each system, and sys- 
tems with an offset shall comply with all of the follow- 
ing [NFPA 54:13.2.17]: 

(1) The offset angle shall not exceed 45 degrees from 
vertical. 

(2) The horizontal length of the offset shall not exceed 
eighteen (18) inches for each inch (1 80 mm/mm) of 
common vent diameter of the segment in which the 
offset is located. 

(3) For the segment of the common vertical vent con- 
taining the offset, the common vent capacity listed in 
the common venting tables shall be reduced by 20 
percent (0.80 x maximum common vent capacity). 

(4) A multistory common vent shall not be reduced in 
size above the offset. 



511.2.17 Where two (2) or more appliances are con- 
nected to a vertical vent or chimney, the flow area of the 
largest section of vertical vent or chimney shall not ex- 
ceed seven (7) times the smallest listed appliance cate- 
gorized vent areas, flue collar area, or draft hood outlet 
area unless designed in accordance with approved engi- 
neering methods. [NFPA 54:13.2.18] 

511.2.18 For appliances with more than one (1) input 
rate, the minimum vent connector capacity (FAN Min) 
determined from the tables shall be less than the lowest 
appliance input rating, and the maximum vent connector 
capacity (FAN Max or NAT Max) determined from the 
table shall exceed the highest appliance input rating. 
[NFPA 54:13.2.19] 

511.2.19 Listed corrugated metallic chimney liner sys- 
tems in masonry chimneys shall be sized by using Tables 
5-14 or 5-15 for Type B vents, with the maximum ca- 
pacity reduced by 20 percent (0.80 maximum capacity) 
and the minimum capacity as shown in Tables 5-14 or 5- 
15. Corrugated metallic liner systems installed with 
bends or offsets shall have their maximum capacity fur- 
ther reduced in accordance with Sections 511.2.5 and 
511.2.6. The 20 percent reduction for corrugated metal- 
lic chimney liner systems includes an allowance for one 
(1) long radius 90 degree turn at the bottom of the liner. 
[NFPA 54:13.2.20] 

511.2.20 Tables 5-14 and 5-15 shall be used for chim- 
neys and vents not exposed to the outdoors below the 
roof line. A Type B vent passing through an unventilated 
enclosure or chase insulated to a value of not less than R8 
shall not be considered to be exposed to the outdoors. Ta- 
bles 5-19 and 5-20 shall be used for clay-tile-lined exte- 
rior masonry chimneys, provided all of the following 
conditions are met [NFPA 54:13.2.22]: 

(1) Vent connector is T3^e B double-wall. 

(2) One (1) appHance is draft-hood-equipped. 

(3) The combined appliance input rating is less than the 
maximum capacity given by Table 5-19 (for NAT + 
NAT) or Table 5-21 (for FAN + NAT). 

(4) The input rating of each space-heating appliance ex- 
ceeds the minimum input rating given by Table 5-20 
(for NAT + NAT) or Table 5-22 (for FAN + NAT). 

(5) The vent connector sizing is in accordance with 
Table 5-16. 

511.2.21 Vent connectors shall not be increased more 
than two (2) sizes exceeding the listed appliance catego- 
rized vent diameter, flue collar diameter, or draft hood 
outlet diameter. Vent connectors for draft-hood-equipped 
appliances shall not be smaller than the draft hood ouflet 
diameter. Where vent connector sizes determined from 
the tables for fan-assisted appliances are smaller than the 
flue collar diameter, the use of the smaller sizes shall be 
permitted provided that the installation complies with all 
of the following conditions [NFPA 54:13.2.24]: 

(1) Vent connectors for fan-assisted appliance flue col- 
lars twelve (12) inches (300 mm) in diameter or 



94 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



smaller are not reduced by more than one (1) table 
size [e.g., twelve (12) inches to ten (10) inches (300 
mm to 250 mm) is a one (1) size reduction] and 
those exceeding twelve (12) inches (300 mm) in di- 
ameter are not reduced exceeding two (2) table sizes 
[e.g., twenty-four (24) inch to twenty (20) inch (610 
mm to 510 mm) is a two (2) size reduction]. 

(2) Fan-assisted appliances are common vented with a 
draft-hood-equipped appliance. 

(3) The vent connector has a smooth interior wall. 

511.2.22 Combinations of pipe sizes, single-wall, and 
double-wall metal pipe shall be allowed within any con- 
nector run or within the common vent, provided ALL of 
the appropriate tables permit ALL of the desired sizes 
and types of pipe, as if they were used for the entire 
length of the subject connector or vent. Where single- 
wall and Type B double-wall metal pipes are used for 
vent connectors within the same venting system, the 
common vent must be sized using Tables 5-15 or 5-17 as 
appropriate. [NFPA 54: 13.2.25] 

511.2.23 Where a table permits more than one (1) diam- 
eter of pipe to be used for a connector or vent, all the per- 
mitted sizes shall be permitted to be used. [NFPA 
54:13.2.26] 

511.2.24 Interpolation shall be permitted in calculating 
capacities for vent dimensions that fall between table en- 
tries (See Part II Annex G.1.3). [NFPA 54: 13.2,27] 

511.2.25 Extrapolation beyond the table entries shall not 
be permitted. [NFPA 54:13.2.28] 

511.2.26 For vent heights lower than six (6) feet and ex- 
ceeding vent heights shown in the tables, engineering 
methods shall be used to calculate vent capacities. [NFPA 
54:13.2.29] 



Chimney or gas vent 




Furnace Water 
z=z heater 



r 



Opening 



J* — Opening 




I I I I 



'i ' i'i 'l'i 'i ' i 



FIGURE 5-7 ALL COMBUSTION AIR FROM ADJACENT INDOOR 

SPACES THROUGH INDOOR COMBUSTION AIR OPENINGS. 

[NFPA 54: FIGURE A.9.3.2.3(1)] 



512.0 Direct- Vent Appliances. 

Listed direct-vent gas utilization appliances shall be consid- 
ered properly vented where installed in accordance with the 
terms of its listing, the manufacturer's instructions, and Sec- 
tion 510.8.3. [NFPA 54:12.3.5] 



2010 CALIFORNIA PLUMBING CODE 



95 



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Chimrmy or gas went 



Alternate 
air inlet 



Ventilation louvers 
(each end of attic) 




' Chimney or gas vent 




I— Ventilation louvers for — ' 
unheated crawl space 



FIGURE 5-8 ALL COMBUSTION AIR FROM OUTDOORS. 

INLET AIR FROM VENTILATED CRAWL SPACE AND 

OUTLET AIR TO VENTILATED ATTIC. 

[NFPA 54: FIGURE A.9.3.3.1(a)] 



FIGURE 5-10 ALL COMBUSTION AIR FROM 

OUTDOORS THROUGH HORIZONTAL DUCTS. 

[NFPA 54: FIGURE A.9.3.3.1(2)] 



Chimney or gas vent 



Ventilation louvers 
(each end of attic) 




Inlet air duct 
[ends 1ft (300 mm) 
above floor] 



I I I I 



I I I I "TT- 



Chimney or gas vent 




Furnace 



Water 
heater 



- Opening 

[^Alternate 
opening 
location 



i ! i!i!i ! i!i ! i 



T-^-r 



FIGURE 5-9 ALL COMBUSTION AIR FROM 

OUTDOORS THROUGH VENTILATED ATTIC. 

[NFPA 54: FIGURE A.9.3.3.1(1)(b)] 



FIGURE 5-11 ALL COMBUSTION AIR FROM OUTDOORS 

THROUGH SINGLE COMBUSTION AIR OPENING. 

[NFPA 54: FIGURE A.9.3.3.2] 



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2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



Mechanical 

draft vent 

terminal 

(See Section 510.8.1) 




Direct vent terminal clearance 
Minimum clearance, C 
Input (Btu/hr) Clearance (in.) 

10.000 or less 6 

10.001 to 50,000 9 
Over 50,000 12 
(see 10.8.3) 



For S! units: 1 ft ~ 0.305 m; 1 in. = 25.4 mm; 
1 Btu/hr = 0.293 W 



Forced air 
intet 



FIGURE 5-12 EXIT TERMINALS OF MECHANICAL DRAFT AND 
DIRECT-VENT VENTING SYSTEMS. [NFPA 54: FIGURE A.I 2.9] 




37T 
(2"C) 



99% Winter Design Temperatures for the Contiguous United States 

This map is a necessarily generalized guide to temperatures in the contiguous United States. Temperatures shown for areas 
such as mountainous regions and large urban centers may not be accurate. The data used to develop this map are from the 
1993 ASHRAE Handbook — Fundamentals (Chapter 24, Table 1 : Climate Conditions for the United States). 
For 99% winter design temperatures in Alaska, consult the ASHRAE Handbook— Fundamentals. 
99% winter design temperatures for Hawaii are greater than 37°F. 



FIGURE 5-13 RANGE OF WINTER DESIGN TEMPERATURES USED IN ANALYZING 
EXTERIOR MASONRY CHIMNEYS IN THE UNITED STATES. [NFPA 54: FIGURE G.2.4] 



2010 CALIFORNIA PLUMBING CODE 



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TABLE 5-8 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)] 











NUMBER OF APPLIANCES: 


SINGLE 


APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


CONNECTED DIRECTLY TO VENT 


VENT DIAMETER - D (inch) 


3 


4 


5 


6 


7 


APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


HEIGHT 
H 
(ft) 


LATERAL 

L 
(ft) 


FAN 


HAT I 


FAN 


NAT 


FAN 


NAT 


FAN 


i|nat. 


FAN 


Mm 


Min 


Max 


Min 


Max 


Min 


Max 


Min 


Max 


Min 


Max 


6 








78 


iiif^i 





152 


III 





251 


lim^ 





375 


lumi 





524 


immi 




2 


13 


51 


iimi 


18 


97 


27 


157 


ims-^ 


32 


232 


Il!l53- 


44 


321 


imM 




4 


21 


49 


■ -■■■mi 


30 


94 


i-m- 


39 


153 


^ ^ m ■ 


50 


227 


66 


316 


nmin 




6 


25 


46 


32"/; 


36 


91 


61 


47 


149 


100 


59 


223 


1:1149' 


78 


310 


-mu 


8 








84 


50 





165 


94 





276 


155 





415 


■ ' 235 





583 


320^ 




2 


12 


57 


40 


16 


109 


75 


25 


178 


120 


28 


263 


180 


42 


365 


247 




5 


23 


53 


38 : 


32 


103 


71 


42 


171 


115 


53 


255 


,1,73 


70 


356 


23:7 




8 


28 


49 


■■m 


39 


98 


66 : 


51 


164 


109 


64 


247 


;^;i'65 


84 


347 


-mi 


10 








88 


-'i53|i 





175 


luooH 





295 


Ml66\ 





447 


nws. 





631 


irm\ 




2 
5 


12 

23 


61 

57 


Ullil 


17 
32 


118 
113 


li 81|i 

It «»i; 


23 
41 


194 
187 




26 

52 


289 
280 


it 180 5 


40 
68 


402 
392 


|2?g| 




10 


30 


51 


•\im 


41 


104 


1\IM\ 


54 


176 


wms' 


67 


267 


flits ; 


88 


376 


iiBiii 


15 








94 


'm 





191 


112 





327 


' 187 





502 


:p285 





716 


mmi 




2 


11 


69 


48' 


15 


136 


93 


20 


226 


150 


22 


339 


: -225 


38 


475 


^B16-^ 




5 


22 


65 


45 


30 


130 


87 


39 


219 


142 


49 


330 


217 


64 


463 


300 




10 


29 


59 


41 .. 


40 


121 


82 


51 


206 


135 


64 


315 


: . 208 


84 


445 


288 




15 


35 


53 


m 


48 


112 


76 


61 


195 


128 


76 


301 


; 198 


98 


429 




20 








97 


•H;61i! 





202 


;Jl?^i 





349 


ri202.r 





540 


lim?:\ 





776 


nmi 




2 
5 


10 
21 


75 
71 


him 


14 
29 


149 
143 


fiiil 


18 
38 


250 
242 


Ili66p 

Hi6on 


20 
47 


377 
367 




33 
62 


531 

519 


IIMi 
mill 




10 


28 


64 


■fiWIi 


38 


133 


vmi 


50 


229 


Huo^: 


62 


351 


|42S: 


81 


499 


iiiai 




15 


34 


58 


:mi 


46 


124 


-m\ 


59 


217 


142 


73 


337 


i'^i";^^ 


94 


481 


il3i»Mi 




20 


48 


52 


35 '■ 


55 


116 


78 


69 


206 


134 


84 


322 


-206 


107 


464 


''■WW: 


30 








100 


64 





213 


128 





374 


220 





587 


: 336 





853 


. 475 , 




2 


9 


81 


56 


13 


166 


112 


14 


283 


185 


18 


432 


280 


27 


613 


394= 




5 


21 


77 


54;: 


28 


160 


108, 


36 


275 


176 


45 


421 


:;273 


58 


600 


■imsii 




10 


27 


70 


:;;Spi| 


37 


150 


. 102. 


48 


262 


. 171 


59 


405 


|r261 


77 


580 


amm 




15 
20 


33 
56 


64 
58 


■ 1 iW^i 1 


44 
53 


141 
132 




57 
66 


249 

237 


|M63j 


70 
80 


389 
374 




90 
102 


560 
542 


ip|: 




30 


NA 


NA 


:n#!l 


73 


113 


88 


214 


m^l 


104 


346 


\mi 


131 


507 


50 








101 


vim 





216 


^nm\ 





397 


":232 ■ 





633 


lfBB3: 





932 


llligf 




2 


8 


86 


61- 


11 


183 


122 


14 


320 


206 


15 


497 


!-to' 


22 


715 


'im- 




5 


20 


82 


NA'^ 


27 


177 


119 


35 


312 


200 


43 


487 


308 


55 


702 


.438 • 




10 


26 


76 


NA. 


35 


168 


114 


45 


299 


190 


56 


471 


298 


73 


681 


426 




15 


59 


70 


na: 


42 


158 


NA 


54 


287 


180 


66 


455 


: 288 


85 


662 


::my. 




20 


NA 


NA 


NA^ 


50 


149 


. NA 


63 


275 


169 


76 


440 


i:278 


97 


642 


U40IU 




30 


NA 


NA 


aMI 


69 


131 


^ ^ t u; 1 1 


84 


250 


im. 


99 


410 


ll!f^: 


123 


605 


;illli 


100 




2 


NA 

NA 


NA 

NA 


^lUi 



10 


218 
194 


ilmi 



12 


407 
354 





13 


665 
566 


mm 

Imm 



18 


997 
831 


mm 

iliftr 




5 


NA 


NA 


A^MMi 


26 


189 


33 


347 


\iM' 


40 


557 


ilK6?n 


52 


820 


imi 




10 


NA 


NA 


-NAH 


33 


182 


-ka:^ 


43 


335 


■ NA 


53 


542 


iiS6i' 


68 


801 


iim^i 




15 


NA 


NA 


NA^-; 


40 


174 


= NA 


50 


321 


NA 


62 


528 


-' ^ 353 ■ 


80 


782 


:tm\ 




20 


NA 


NA 


NA 


47 


166 


NA 


59 


311 


NA 


71 


513 


344 


90 


763 


471" 




30 


NA 


NA 


NA 


NA 


NA 


NA 


78 


290 


NA 


92 


483 


NA 


115 


726 


449 




50 


NA 


NA 


na:; 


NA 


NA 


NA 


NA 


NA 


NA 


147 


428 


; ; N A 


180 


651 


; 405; ~ 



For SI units, 1 in. = 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.^ - 645 mml 



98 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-8 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)] (continued) 



NUMBER OF APPLIANCES: SINGLE 



APPLIANCE TYPE: 



APPLIANCE VENT CONNECTION: 



CATEGORY I 



CONNECTED DIRECTLY TO VENT 



VENT DIAMETER - D ( inch) 



9 



10 



12 



14 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



HEIGHT 
H 
(ft) 



LATERAL 

L 
(ft) 



FAN 



Min 



Max 



NAT 



Max 



FAN 



Min 



Max 



NAT 



Max 



FAN 



Min 



Max 



NAT 

; Max 



FAN 



Min 



Max 



Mkt 



FAN 



Min 



Max 



NAt 



Max I 




53 
79 
93 



698 
425 
419 
413 



279 
273 





63 

93 

110 



897 
543 
536 
530 



^370'^ 
362 
354: 





75 

110 

128 



1,121 
675 
668 
661 



-455' 

445 
435 




103 
147 
171 



1,645 
982 
975 
967 



1 1 1 II 




138 
191 
219 



2,267 
1,346 
1,338 
L330 



pm 

880 [ 

870. 

^1^1 




50 
83 
99 



780 
483 
473 
463 



tiffin 

nm 

■313 
303 




60 
99 

117 



1,006 
619 
607 
596 



407 
396 





71 

115 

137 



1,261 
770 
758 
746 



Ms I 

503 
490 





98 
154 
180 



1,858 
1,124 
1,110 
1,097 





130 
199 
231 



2,571 
1,543 
1,528 
1,514 



lj3a3H 

mi 

1,010 ■ 
1,000 



10 





2 

5 

10 





48 

81 

104 



847 
533 
522 
504 



U45P 
330 





57 

95 

122 



1,096 
684 
671 
651 



585j 

■451^ 
44^ 
427 





68 

112 

142 



1,377 
852 
839 
817 



1547^ 
525 





93 

149 

187 



2,036 
1,244 
1,229 
1,204 





124 
192 
238 



2,825 
1,713 
1,696 
1,669 



1,45A I 

imi 
ijm 



15 




2 
5 

10 
15 




45 

76 

99 

115 



970 

633 
620 
600 
580 



:^525 

373 





53 

90 

116 

134 



1,263 
815 
800 

777 
755 



682 

,544; 

:5ml 

507 
491 





63 

105 

135 

155 



1,596 

1,019 

1,003 

977 

953 



; 840 

S^75- ^ 

610 





86 
140 
177 
202 



2,380 
1,495 
1,476 
1,446 
1,418 





114 
182 

227 
257 



3,323 
2,062 
2,041 
2,009 
1,976 



l,720ii- 
U50 



20 





2 
5 

10 
15 
20 




41 
73 
95 
111 
125 



1,057 
711 
697 
675 
654 
634 



; 575 

443 

427 
^4il0 





50 

86 

112 

129 

145 



1,384 
917 
902 
877 
853 
830 



752 i 
;612t 

Hm 

576 
557 

537 




59 
101 
130 
150 
167 



1,756 
1,150 
1,133 
1,105 
1,078 
1,052 




81 
135 
172 
195 
217 



2,637 
1,694 
1,674 
1,641 
1,609 
1,578 



;}fl5a| 

iil 

iff- 

P45 




107 
174 
220 
248 
273 



3,701 
2,343 
2,320 
2^82 
2,245 
2,210 



Mm 

1,425 = 



1! 

l,8Wt 

1,775 

IJ33^ 

i,5B^.I 



30 




2 
5 

10 
15 
20 
30 





33 

69 

91 

105 

119 

149 



1,173 
826 
811 
788 
765 
743 
702 



nm 

n535 
524 
;507 

IU90: 

!|473t 
:H44 





42 
82 
107 
124 
139 
171 



1,548 
1,072 
1,055 
1,028 
1,002 
977 
929 



:855^i 

688 
668 \ 

6m 
594' 




54 

96 
125 
143 
160 
195 



1,977 
1,351 
1,332 
1,301 
1,272 
1,243 
1,189 




74 
127 
164 
187 
207 
246 



3,004 
2,004 
1,981 
1,944 
1,908 
1,873 
1,807 





98 
164 
209 
237 
260 
305 



4,252 
2,786 
2,759 
2,716 
2,674 
2,633 
2,555 



50 





2 
5 

10 
15 
20 
30 




26 
65 

86 
100 
113 
141 



1,297 
975 
960 
935 
911 
888 
844 



708 

. f.is 

572 
556 

:522 




33 
77 
101 
117 
131 
161 



1,730 
1,276 
1,259 
1,230 
1,203 
1,176 
1,125 



952 
813: 

■rz98l 

i-m. 

747- 

722 

670; 




41 
90 
118 
136 
151 
183 



2,231 
1,620 
1,600 
1,567 
1,536 
1,505 
1,446 



1,195 
1,010 

mi' 

948 

924 

.876 




66 

118 
154 
177 
195 
232 



3,441 
2,431 
2,406 
2,366 
2,327 
2,288 
2,214 




1,408 





86 
151 
196 

222 
244 
287 



4,934 
3,409 
3,380 
3,332 
3,285 
3,239 
3,150 



2,550 

2, 125 1 1 

2j|64r 

2,02^' 
1,987 



100 




2 
5 

10 
15 
20 
30 
50 





21 

60 

80 

93 

105 

131 

197 



1,411 
1,155 
1,141 
1,118 
1,095 
1,073 
1,029 
944 



ffl70 

;7bo 

692 
.679 

;|666 

'^27^ 
575 





25 

71 

94 

109 

122 

149 

217 



1,908 
1,536 
1,519 
1,492 
1,465 
1,438 
1,387 
1,288 



i,04to; 

935 1 

926 
910 

895r 

849'? 
787 




30 
82 
108 
126 
141 
170 
241 



2,491 
1,975 
1,955 
1,923 
1,892 
1,861 
1,802 
1,688 



i;i70 " 

1,159 
1,142 
i424: ; 

■||i)Mf 

ij)7i ■; 
1,000 




44 

107 
142 
163 
181 
215 
292 



3,925 
3,027 
3,002 
2,961 
2,920 
2,880 
2,803 
2,657 



1350 





72 
136 
180 
206 
226 
265 
350 



5,729 
4,313 
4,282 
4,231 
4,182 
4,133 
4,037 
3,856 



imi 

2,531 
2,500 , 

2,4691 1 

2,375'! 
2,250 



For SI units, 1 in. = 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.^ = 645 mm^. 



2010 CALIFORNIA PLUMBING CODE 



99 



WATER HEATERS 



TABLE 5-8 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)] (continued) 



NUMBER OF APPLIANCES: SINGLE 



APPLIANCE TYPE: 



CATEGORY I 



APPLIANCE VENT CONNECTION: CONNECTED DIRECTLY TO VENT 



VENT DIAMETER - D (inch) 



16 



18 



20 



22 



24 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 












Height 
H 
(ft) 



Lateral 

L 
(ft) 



FAN 



Min 



Max 



FAN 



MIn 



Max 



NAT ^ 



Max: 



FAN 



Min 



Max 



NAT 



Max 



FAN 



Min 



Max 



'NAT 



lite- 



FAN 



Min 



Max 



mmm 





178 
242 
276 



2,983 
1,769 
1,761 
1,753 



iipiai 
flfffll 

mi 




225 
300 
341 



3,802 
2,250 
2,242 
2,235 



l|?6p| 

i;48(|j 

l,47S^ 

1,47ft ^ 




296 
390 

437 



4,721 
2,782 
2,774 
2,767 



31*30! 
1350^ 
1,835 
1,820 




360 
469 
523 



5,737 
3,377 
3,370 
3,363 






426 
555 
618 



6,853 
4,030 
4,023 
4,017 




168 
251 
289 



3,399 
2,030 
2,013 
2,000 



1-^ I fill 

I If It 11 

H30O 




212 
311 
354 



4,333 
2,584 
2,563 
2,552 



1,670 




278 
398 
450 



5,387 
3,196 
3,180 
3,163 



ffiio: 

i;090 
2,070 




336 
476 

537 





401 
562 
630 



7,838 
4,634 
4,612 
4,602 



3,(M0?: 

3,oii 



10 





2 

5 

10 




161 

243 
298 



3,742 
2,256 
2,238 
2,209 



1^0 




202 
300 
364 



4,782 
2,868 
2,849 
2,818 



'2,4;5QI 





264 
382 
459 



5,955 
3,556 
3,536 
3,504 



3,050 
2,280 




319 
458 
546 



7,254 
4,322 
4,301 
4,268 






378 
540 
641 



8,682 
5,153 
5,132 
5,099 



■ '^» if fi I 

3^0-: 



15 





2 

5 

10 

15 





147 
229 
283 
318 



4,423 
2,719 
2,696 
2,659 
2,623 








186 

283 
346 
385 



5,678 
3,467 
3,442 
3,402 
3,363 



2,900: 

,2a#t 

I f n ^' T g 

^i-f9ll 

2,150: 





239 
355 
432 
479 



7,099 
4,304 
4,278 
4,234 
4,192 



3,620 
p>SOO 

?2,7^9^ 
2,700 




290 
426 
510 
564 



8,665 
5,232 
5,204 
5,159 
5,115 





346 
501 
599 
665 



10,393 
6,251 
6,222 
6,175 
6,129 




3,980 



20 





2 
5 

10 
15 
20 




139 
219 

273 
306 
335 



4,948 
3,097 
3,071 
3,029 
2,988 
2,948 



taflso 





175 
270 
334 
372 
404 



6,376 
3,955 
3,926 
3,880 
3,835 
3,791 



3,250; 

mm 

2,56l|^ 

2,465 

2,430 




220 
337 
413 
459 
495 



7,988 
4,916 
4,885 
4,835 
4,786 
4,737 



.4,060 

^Ii200; 

:3a30 

3,090 
3,050 




269 
403 
489 
541 
585 



9,785 
5,983 
5,950 
5,896 
5,844 
5,792 



3,810^ 

3,783 

3,739 

r3,695 ^ 

W65 ' 





321 

475 
573 
631 
689 



11,753 
7,154 
7,119 
7,063 
7,007 
6,953 



A574 



■4,^i. 




30 





2 
5 

10 
15 
20 
30 




127 
206 
259 
292 
319 
369 



5,725 
3,696 
3,666 
3,617 
3,570 
3,523 
3,433 





159 
252 
316 
354 
384 
440 



7,420 
4,734 
4,701 
4,647 
4,594 
4,542 
4,442 



13,0501 
3,0201 
2,970, 

|2|870f 




199 
312 
386 
431 
467 
540 



9,341 
5,900 
5,863 
5,803 
5,744 
5,686 
5,574 




241 
373 
456 
507 
548 
635 



11,483 
7,194 
7,155 
7,090 
7,026 
6,964 
6,842 



mil 



lfrP5 





285 
439 
535 
590 
639 
739 



13,848 
8,617 
8,574 
8,505 
8,437 
8,370 
8,239 



50 





2 
5 

10 
15 
20 
30 





113 
191 
243 
274 
300 
347 



6,711 

4,554 
4,520 
4,464 
4,409 
4,356 
4,253 





141 
234 
295 
330 
361 
412 



8,774 
5,864 
5,826 
5,763 
5,701 
5,641 
5,523 



4,460 

3,67K^ 
3i6BMi 

3,48r : 
3,43:1^ ^ 





171 
283 
355 
396 
433 
494 



11,129 

7,339 
7,295 
7,224 
7,155 
7,086 
6,953 



5,635 
4,630 

[1^597-; 

4,479 
4,421 




209 
336 
419 
465 
506 
577 



13,767 
8,980 
8,933 
8,855 
8,779 
8,704 
8,557 



6,940 

§1144 




251 
394 
491 
542 
586 
672 



16,694 
10,788 
10,737 
10,652 
10,570 
10,488 
10,328 



8,430 

■smu 

6,^0' 
6,603^ 

--:- r-f. I f f f 



100 





2 
5 

10 
15 
20 
30 
50 




95 

172 
223 
252 
277 
319 
415 



7,914 
5,834 
5,797 
5,737 
5,678 
5,619 
5,505 
5,289 



ilfi^ 




120 

208 
268 
304 
330 
378 
486 



10,485 
7,591 
7,548 
7,478 
7,409 
7,341 
7,209 
6,956 



15,^01 
H,600i 
4,566't 
4,509: 

; 4,4511 
i^|39ll 
4|279r 
4,056!' 




138 
245 
318 
358 
387 
446 
572 



13,454 
9,577 
9,528 
9,447 
9,367 
9,289 
9,136 
8,841 



^fOpc-l 

Msoa^ 

5,769 
5,717 
;:5,665 

!5J509' 
5,300 




169 
293 
374 
418 
452 
514 
659 



16,817 
11,803 
11,748 
11,658 
11,569 
11,482 
11,310 
10,979 



moaa 
f Iff II I 

l|2(p^ 

R162 

^100 




'61600 





204 
341 
436 
487 
523 
592 
752 



20,578 
14,264 
14,204 
14,105 
14,007 
13,910 
13,720 
13,354 



8,683 

IfliSli... 



For SI units, 1 in. - 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.^ = 645 mm^. 



100 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-9 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(b)] 



NUMBER OF APPLIANCES: SINGLE 



APPLIANCE TYPE: 



CATEGORY I 



APPLIANCE VENT CONNECTION: SINGLE-WALL METAL CONNECTOR 



VENT DIAMETER - O (inch) 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



Max- 



HEIGHT 
H 
(ft) 



LATERAL 

L 
(ft) 



FAN 



Min 



Max 



NAT 
Max 



FAN 



Min 



Max 



NAT; 
Max 



FAN 



Min 



Max 



flAtl 



Max 



FAN 



Min 



Max 



FAN 



Min 



Max 



':&%! 



Max 



38 
39 

NA 
NA 



77 
51 

NA 
NA 



45 
36 

33: 
3U 



59 
60 

74 
83 



151 
96 
92 
89 



85 
66 

::..63.: 

11 im 



85 

85 

102 

114 



249 
156 
152 
147 




126 
123 
146 
163 



373 
231 
225 
220 



204;: 




165 
159 
187 
207 



'Him 

171 
163 



522 
320 
313 
307 



284, 

21^1 

ml 



37 
39 

NA 
NA 



83 
56 

NA 
NA 



50^ 
39 
37 
33 



58 
59 
77 
90 



164 

108 

102 

95 



^93^ 
75 
69 
64 



83 

83 

107 

122 



273 
176 
168 
161 



123 
121 

151 
175 



412 
261 

252 
243 



161 
155 
193 

223 



580 
363 
352 
342 



^3l^i 

235- 
225 " 



10 





2 

5 

10 



37 
39 

52 
NA 



87 
61 
56 

NA 



53 
41: 
39; 

>34 



57 
59 
76 
97 



174 
117 
111 
100 



99 



82 

82 

105 

132 



293 
193 
185 
171 



165.1 

■:lA 
. Ill .1 . 

Ill 



120 
119 
148 
188 



444 
287 
277 
261 




158 
153 
190 

237 



628 
400 
388 
369 



344! 
^2t2l| 

I 2W| 



15 




2 
5 

10 
15 



36 

38 
51 

NA 
NA 



93 
69 
63 

NA 

NA 



57 
47 
44 
39 

NA'- 



56 

57 
75 
95 

NA 



190 
136 
128 
116 

NA 



111: 
93 
86 

79 
72 



80 

80 

102 

128 

158 



325 
225 
216 
201 
186 



18611 
149 
140 
131 

m 



116 
115 
144 
182 
220 



499 
337 
326 
308 
290 



MM 

mi 

■ ^m 

146; 

136 ^ 
126 



2241' 
217:^ 
203 

m 



153 
148 
182 
228 

272 



713 
473 
459 
438 
418 



:a88i: 

3141 

298 

234^ 



20 




2 
5 

10 
15 
20 



35 
37 
50 

NA 
NA 
NA 



96 
74 
68 

NA 
NA 
NA 



iOi 

"^561 

47 

41 

NA 

NA 



54 
56 

73 
93 

NA 
NA 



200 
148 
140 
129 

NA 
NA 



iimi 

86 
80 

NA 



78 
78 
100 
125 
155 
186 



346 
248 
239 
223 
208 
192 



114 
113 
141 
177 
216 
254 



537 
375 
363 
344 
325 
306 




149 
144 
178 
222 
264 
309 



772 
528 
514 
491 
469 
448 



-Ml 
ml 

30H 

285: 



30 




2 
5 

10 
15 
20 
30 



34 

37 
49 

NA 
NA 
NA 
NA 



99 
80 
74 

NA 
NA 
NA 
NA 



63^ 

^561 

"sal 

NA? 
NA 
NA 
NA 



53 

55 

72 

91 

115 

NA 

NA 



211 
164 
157 
144 
131 
NA 
NA 



127 

■:98! 



NA 
NA 
NA 



76 
76 
98 
122 
151 
181 
NA 



372 
281 
271 
255 
239 
223 
NA 



110 
109 
136 
171 
208 
246 
NA 



584 
429 
417 
397 

377 
357 

NA 



:334| 



144 
139 

171 
213 
255 
298 
389 



849 
610 
595 
570 

547 
524 
477 



'-mi 
illlpl 

■ ^3l9l| 
333^' 
305r 



50 




2 
5 

10 
15 
20 
30 



33 
36 

48 

NA 
NA 
NA 
NA 



99 

84 
80 

NA 
NA 
NA 
NA 



66 

.■61h 

;ha^ 

NA 
NA 

NA 



51 

53 

70 

89 

112 

NA 

NA 



213 
181 
174 
160 
148 
NA 
NA 



133, 

:i2;ii 

:N^i 
iSfA 
NA 
NA 



73 
73 
94 
118 
145 
176 
NA 



394 

318 
308 
292 

275 
257 
NA 



m 

attft 
:«86| 

174! 

na:. 



105 
104 
131 
162 
199 
236 
315 



629 
495 
482 
461 
441 
420 
376 




138 
133 
164 

203 
244 
285 
373 



928 
712 
696 
671 
646 
622 
573 



:^I?M 

mill 

^ ^ s, \ k '^ 

389f 

NA^ 



100 




2 
5 

10 
15 
20 
30 
50 



NA 
NA 
NA 
NA 
NA 
NA 
NA 
NA 



NA 
NA 
NA 
NA 
NA 
NA 
NA 
NA 



NA 

NA 

■m 

nX. 
na: 

NA 
NA 
NA 



49 
51 

67 

85 

132 

NA 
NA 
NA 



214 
192 
186 
175 
162 
NA 
NA 
NA 



NA 

;NA; 



"9... 

' NA- 
NA 
NA 
NA 



69 
70 
90 
113 
138 
168 
231 
NA 



403 
351 
342 
324 
310 
295 
264 
NA 




100 
98 
125 
153 
188 
224 
301 
NA 



659 
563 
551 
532 
511 
487 
448 
NA 




131 
125 
156 
191 
230 
270 
355 
540 



991 
828 
813 
789 
764 
739 
685 
584 



liilll 

45i] 

na'^ 

NA^ 



For SI units, 1 in. = 25.4 mm, 1 ft = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.2 = 645 mm^. 



2010 CALIFORNIA PLUMBING CODE 



101 



WATER HEATERS 



TABLE 5-9 

TYPE B DOUBLE-WALL GAS VENT [NFPA 54:Table 13.1(b)] (continued) 







NUMBER OF APPLIANCES: 


SINGLE 




APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


SINGLE-WALL METAL CONNECTOR 


VENT DIAMETER -0 (inch) 


8 


9 


10 


12 


APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


HEIGHT 
H 
(ft) 


LATERAL 

L 
(ft) 


FAN 


mm 

Max 


FAN 


^:INAT;:. 
Max ; 


FAN 


IfiNAT::] 
pMax 


FAN 


urn'.' 

Max 


Min 


Max 


Min 


Max 


Min 


Max 


Min 


Max 


6 





211 


695 


369 


267 


894 


469 ;, 


371 


1,118 


.!::5.69. 


537 


1,639 


849 




2 


201 


423 


284 \ 


251 


541 


;368 


347 


673 


iim3' 


498 


979 


^ 648 




4 


237 


416 


\i\Wm 


295 


533 


; ^ lUO: ■ 


409 


664 


mm^i^ 


584 


971 


|ii^^-a 




6 


263 


409 


mmi 


327 


526 


mif^ 


449 


656 


imm 


638 


962 




8 





206 


777 


mmAv 


258 


1,002 


^H536'- 


360 


1,257 


nm^' 


521 


1,852 


mm'* 




2 


197 


482 


. mv: 


246 


617 


'-417,1 


339 


768 


III513-: 


486 


1,120 


V.:'l43- 




5 


245 


470 


311 


305 


604 


mi 


418 


754 


^^500 


598 


1,104 


■ 730 




8 


280 


458 


300 


344 


591 


392 J ^ 


470 


740 


: 486 


665 


1,089 


715 


10 





202 


844 


449 


253 


1,093 


584 H 


351 


1,373 


:kim. 


507 


2,031 


^ : 1;057 




2 


193 


531 


n.354| 


242 


681 


m 


332 


849 


i|f5§s; 

lib pmt 1 ;' 


475 


1,242 


liuB4K;: 




5 


241 


518 


U^'344 


299 


667 


409 


834 


584 


1,224 


immu 




10 


296 


497 


■■ t f. 1 * * :^ .'i 


363 


643 


?■ <. <. v.- ; ? j: <s ^ 


492 


808 


iilPin 


688 


1,194 


U\mi] 


15 





195 


966 


■;;^523U 


244 


1,259 


P^glp 


336 


1,591 


1 iW' 


488 


2,374 


' 1,237 ^ ^ 




2 


187 


631 


413 


232 


812 


543: ■ 


319 


1,015 


' ]fe73 


457 


1,491 


983 : 




5 


231 


616 


400 


287 


795 


526 


392 


997 


;657 


562 


1,469 


963 




10 


284 


592 


381 


349 


768 


501 ; 


470 


966 


|;628 


664 


1,433 


928 




15 


334 


568 


-■.;3€7U 


404 


742 


^ :484 ' 


540 


937 


iftHoi:, 


750 


1,399 


r 894 ; 


20 





190 


1,053 


mmu 


238 


1,379 


Lim. 


326 


1,751 


mmm 
lUmm 


473 


2,631 






2 


182 


708 


227 


914 


il|6lr- 


309 


1,146 


443 


1,689 




5 


224 


692 


mmn 


279 


896 


mm^- 


381 


1,126 


=11173*' 


547 


1,665 


: IJ374^: 




10 


277 


666 


^ "437^^ 


339 


866 


570. 


457 


1,092 


;!'f02- 


646 


1,626 


: 1,037 




15 


325 


640 


419 


393 


838 


549 


526 


1,060 


.^677 


730 


1,587 


1,005 




20 


374 


616 


400 


448 


810 


526'; 


592 


1,028 


'651 


808 


1,550 


973 


30 





184 


1,168 


647:^ 


229 


1,542 


■.■.8.52- 


312 


1,971 


mm'; 


454 


2,996 


;n,545 




2 
5 


175 

215 


823 
806 




219 
269 


1,069 
1,049 




296 

366 


1,346 
1,324 


ipPli 
wmn 


424 
524 


1,999 
1,971 


1 1 .f t t f .M' . 




10 


265 


111 


327 


1,017 


Hll^-' 


440 


1,287 


mmm 


620 


1,927 


n^mmn 




15 


312 


750 


n:481;!l 


379 


985 


-:638f| 


507 


1,251 


mm-' 


702 


1,884 


VINOS' ^ 




20 


360 


723 


461 


433 


955 


6i5H 


570 


1,216 


■hM 


780 


1,841 


1,166 




30 


461 


670 


426 


541 


895 


574,; 


704 


1,147 


, 720 


937 


1,759 


1,101 


50 





176 


1,292 


704 


220 


1,724 


9mi- 


295 


2,223 


1JI89 


428 


3,432 


> 1,818 




2 


168 


971 


Wvm-^ 


209 


1,273 


yAm^ 


280 


1,615 


JIlQtH 


401 


2,426 


i-imr. 




5 
10 


204 
253 


953 
923 


lliMmi 


257 
313 


1,252 
1,217 


im 


347 
418 


1,591 
1,551 




496 
589 


2,396 
2,347 


ip^on 

mmm 




15 


299 


894 


^.umi 


363 


1,183 


'::^::. 


481 


1,512 


51 im ■ 


668 


2,299 


I mil ; 




20 


345 


866 


^^■■543- 


415 


1,150 


i(k"^ 


544 


1,473 


ihW6^ 


741 


2,251 


1,387 




30 


442 


809 


502 


521 


1,086 


649:: 


674 


1,399 


I 848 


892 


2,159 


1,318 


100 





166 


1,404 


■:765:. 


207 


1,900 


U033- 


273 


2,479 


;ii;aB0 . 


395 


3,912 


2,042 




2 


158 


1,152 


;^;#S4i 


196 


1,532 


:/m:: 


259 


1,970 




371 


3,021 


ii,8«:: 




5 


194 


1,134 


mm 


240 


1,511 


nmi- 


322 


1,945 


460 


2,990 


mmn 




10 


238 


1,104 


imm 


293 


1,477 


llW^2- 


389 


1,905 


547 


2,938 


%mv> 




15 


281 


1,075 


342 


1,443 


liii^l 


447 


1,865 


mUtou 


618 


2,888 


%W: 




20 


325 


1,046 


■■..■■639- 


391 


1,410 


::864H 


507 


1,825 


^iijdsf 


690 


2,838 


1,696 




30 


418 


988 


NA 


491 


1,343 


82^^ 


631 


1,747 


1,041 


834 


2,739 


1,627 




50 


617 


866 


NA 


711 


1,205 


NAj: 


895 


1,591 


.:;NA 


1,138 


2,547 


1,489 



For SI units, 1 in. = 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.^ = 645 mm^. 



102 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-10 

MASONRY CHIMNEY [NFPA 54-09: TABLE 13.1(c)] 















NUMBER OF APPLIANCES: 


SINGLE 




APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 










TYPE B DOUBLE-WALL CONNECTOR DIAMETER - D (inch) 




















TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 








3 


4 


5 


6 


7 


APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


HEIGHT 
H 
(ft) 


LATERAL 

L 
(ft) 


FAN 




FAN 


: :NA^ 
Max 


FAN 


nm 


FAN 


NAT 
Max 


FAN 


.NAT 


Min 


Max 


MIn 


Max 


Min 


Max 


Mm: 


MIn 


Max 


Min 


Max 


6 




2 


NA 


NA 


■'m^ 


NA 


NA k;:52-- 


NA 


NA r ■ 86. - 


NA 


NA 


130 


NA 


NA 


jiso 






5 


NA 


NA 


^5;:: 


NA 


NA 


'".:-49-. 


NA 


NA r'-te^t,: 


NA 


NA 


117 


NA 


NA 


165 


8 




2 


NA 


NA 


"':,29-: 


NA 


NA 


^ .55; 


NA 


NA 


93 


NA 


NA 


; 145 ■ 


NA 


NA 


198 






5 


NA 


NA 


~r)26.i 


NA 


NA r'"-52; 


NA 


NA 


. :S8 


NA 


NA 


^':;i34. 


NA 


NA 


: . 183 






8 


NA 


NA 


-;;24;j 


NA 


NA l-^:.\ 


NA 


NA 


,':.§|.;- 


NA 


NA 


■.-127 . 


NA 


NA 


.;-i7S 


10 




2 


NA 


NA 


■ 31-\ 


NA 


NA 


61 


NA 


NA 


103 


NA 


NA 


162 


NA 


NA 


M ill :\ 






5 


NA 


NA 


; -28 : 


NA 


NA 


r-57-. 


NA 


NA ; 96 ■ 


NA 


NA 


148 ; 


NA 


NA 


2^4 






10 


NA 


NA 


\-4^^t 


NA 


NA 


.J5fy: 


NA 


NA -':.87. -- 


NA 


NA 


= ,,,,-^3^;. 


NA 


NA 


,^i9ir^^ 


15 




2 


NA 


NA 


r:.35^ 


NA 


NA \i'ei~i 


NA 


NA 


114 


NA 


NA 


- 1-79 J 


53 


475 


r-'250.- 






5 


NA 


NA 


'^M.n 


NA 


NA 


:\"62;-; 


NA 


NA 


107 


NA 


NA 


: X64 - 


NA 


NA 


: 231 . 






10 


NA 


NA 


-■r-28'": 


NA 


NA 


-■55. 


NA 


NA \':9i'h 


NA 


NA 


153 - 


NA 


NA 


.1216. 






15 


NA 


NA 


: .-NA : 


NA 


NA i-'-:4S^- 


NA 


NA 


"-89f:^ 


NA 


NA 


: 141 


NA 


NA 


:;201^ 


20 




2 


NA 


NA 


■■"38'^ 


NA 


NA \.,"7A:. 


NA 


NA 


: 124-.^ 


NA 


NA 


.201^ 


51 


522 


.::274--' 






5 


NA 


NA 


36^ 


NA 


NA 68: 


NA 


NA 


~ 116 1 


NA 


NA 


:t84 1 


80 


503 


' 254;- 






10 


NA 


NA 


VNA-: 


NA 


NA ; ;60: 


NA 


NA 1-107.. 


NA 


NA 


. 172" ^ 


NA 


NA 


''■237~- 






15 


NA 


NA 


\^A^l 


NA 


NA t-NA:: 


NA 


NA r-"-97f'" 


NA 


NA 


-1159 i 


NA 


NA 


--220; 






20 


NA 


NA 


['KAA 


NA 


NA LNA:, 

i: ".,.. 


NA 


NA 


r/mv: 


NA 


NA 


/148 


NA 


NA 


.206 


30 




2 


NA 


NA 


r-Al: 


NA 


NA l:..B2- 


NA 


NA 


137 


NA 


NA 


c 216:^ 


47 


581 


:-:303-' 






5 


NA 


NA 


.MSA^; 


NA 


NA :-.-76.;- 


NA 


NA 


128' ■'. 


NA 


NA 


198; 


75 


561 


^81: 






10 


NA 


NA 


y^A : 


NA 


NA ->.6r- 


NA 


NA I'MS-r- 


NA 


NA 


: 184 


NA 


NA 


: . 263,.- 






15 


NA 


NA 


:^lA-•■ 


NA 


NA r'NA"^' 


NA 


NA I'lm-'r. 


NA 


NA 


171 •■- 


NA 


NA 


aM^:- 






20 


NA 


NA 


--NA,"- 


NA 


NA 


'■:nA- 


NA 


NA i. 91, J 


NA 


NA 


;1|9 : 


NA 


NA 


1227: 






30 


NA 


NA 


:NA7 


NA 


NA 


£m:v 


NA 


NA 


^--NA;:: 


NA 


NA 


:MA-^| 


NA 


NA 


:^^188;; 


50 




2 


NA 


NA 


:-SA^i 


NA 


NA 


;„;92;:.. 


NA 


NA -:-/16i- ■ 


NA 


NA 


:-251.:.: 


NA 


NA 


-. 351- 






5 


NA 


NA 


'mA' 


NA 


NA 


I m1/'- 


NA 


NA ; 151;;": 


NA 


NA 


^230 


NA 


NA 


:.323--: 






10 


NA 


NA 


•;ha:^ 


NA 


NA |-.N|l', 


NA 


NA 


138^ 


NA 


NA 


^ 215 : 


NA 


NA 


304 






15 


NA 


NA 


^:MA'\: 


NA 


NA y-^yf 


NA 


NA 


127 


NA 


NA 


:199 


NA 


NA 


^■-282- 






20 


NA 


NA 


NA'ii 


NA 


NA 


'NA:: 


NA 


NA 


NA 


NA 


NA 


185 


NA 


NA 


';264', 






30 


NA 


NA 


:.NA'^i 


NA 


NA 


;-^HA;- 


NA 


NA r NA - 


NA 


NA 


•-HA- 


NA 


NA 


\'NA- 




Minimum 












t ■ - , ... : 








^'■~ ■ ■'/■ 










internal 






■■''■-' . 






t,-: ;■' ;" 




- ' '- . =^" 














area of 




12 


' - - - 'i 




19 




28 




38 






50 






chimney 












'''-'■"- 'z 




■; -,< . .- 




■ . . -- ' 






\^^':''' 




(in.2) 






■.":-. -■ ~ 






















Maximum 
























internal 
























area of 


Seven 


times the 


listed ap 


pliance c 


ategorized vent area, flue collar area, or draf 


t hood outlet areas 












chimney 
























(in.^) 























For SI units, 1 in. - 254 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.^ = 645 mm^. 



2010 CALIFORNIA PLUMBING CODE 



103 



WATER HEATERS 



TABLE 5-10 

MASONRY CHIMNEY [NFPA 54-09: TABLE 13.1(c)] (continued) 







NUMBER OF APPLIANCES: 


SINGLE 




APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


TYPE B DOUBLE-WALL CONNECTOR DIAMETER - D (inch) 
TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 


8 


9 


10 


12 


APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


HEIGHT 
H 
(ft) 


LATERAL 

L 
(ft) 


FAN 


uNATM 


FAN 


mt 


FAN 


..^riAf - - 

'^'i - ■ • ' 

-iMax--' 


FAN 


HAT 


Min 


Max 


. '^Max"^"* 


Min 


Max 


imc 


Min 


Max 


Min 


Max 


^ Max 


6 


2 

5 


NA 

NA 


NA 

NA 


I.-L247 ■ 
-^231 i 


NA 
NA 


NA 
NA 


-',,,,320. > 
;"2?8.-' 


NA 
NA 


NA 
NA 


^l^01;: 

-1376;, 


NA 
NA 


NA 

NA 


581.. 

•■;'56i-"' 


8 


2 
5 
8 


NA 
NA 
NA 


NA 
NA 
NA 


,-^2^6-:! 
^ .■-247-. 


84 

NA 
NA 


590 

NA 

NA 


-:;350 : 

.328 

■.'."s'lB-^: 


100 
149 
173 


728 
711 
695 


.-i- ■ ' = 


139 
201 
231 


1,024 

1,007 

990 


651 

''-■^'640:. 
.-- ,623;~ 


10 


2 

5 

10 


68 

NA 
NA 


519 

NA 

NA 


;29S : 

;.'277 i 
,',263 


82 
124 
155 


655 
638 
610 


■..3.88' 

' '365 v\, 
^' ■• 347.- 


98 
146 
182 


810 
791 
762 


'^^491'-:^ 

1-^444^^ 


136 
196 

240 


1,144 
1,124 
1,093 


:'.724-. 

^■■■BiS8-; 

,■ , -A : „ 


15 


2 
5 

10 
15 


64 

99 

126 

NA 


613 
594 
565 

NA 


-■r336,., 
=313 

1296"i 


77 
118 
148 
171 


779 
759 
727 
698 


■■ -441y; . 
;V4lF'-' 

;-394-'' 


92 
139 
173 
198 


968 
946 
912 
880 


-V567-- 
■-■i':485".- 


127 
186 
229 
259 


1,376 
1,352 
1,315 
1,280 


: 841/ 

;-r-828\ 
:777 

; '742-^ 


20 


2 
5 

10 
15 
20 


61 
95 

122 

NA 
NA 


678 
658 
627 

NA 
NA 


■ • 375,., 

.'^350 

-■332': 

■ -3.14;^ 
.. 296. 


73 
113 
143 
165 
186 


867 ,491--, 

845 '463; 

811 ■ ;;440 

780 ":^4i8: 
750 [■-.-; 397- \ 


87 
133 
167 
191 
214 


1,083 

1,059 

1,022 

987 

955 


:n627-. 

<l'^597--. 

^ m . 

J. 541V 


121 
179 
221 
251 

277 


1,548 
1,523 
1,482 
1,443 
1,406 


-.953^- 

:./:"-'933'- 

V-.:-g79:- 

.840 


30 


2 
5 

10 
15 
20 
30 


57 

90 

115 

NA 
NA 
NA 


762 
741 
709 

NA 
NA 

NA 


":-'42r:' 
- 393 

:"^373-^ 

■-:35i/ 
-.■•332 . 
■ -;'28B ^. 


68 
106 
135 
156 
176 
NA 


985 
962 
927 
893 
860 
NA 


V.,.526;-; 
5ob;" 

- ' 476'^'- 
■■, 416.:,-, 


81 

125 
158 
181 
203 
249 


1,240 
1,216 
1,176 
1,139 
1,103 
1,035 


■f -717 \ 
-) -683 '^ 

■^:-64B-V- 

ir621 ■; 

^592:^ 

■t-555;:; 


111 
169 
210 
239 
264 
318 


1,793 
1,766 
1,721 
1,679 
1,638 
1,560 


^■iai2-^ 

,1.094 

.-4,025- 
981"^ 

.„ „.946r„„ 
■^'■877:/ 


50 


2 
5 

10 
15 
20 
30 


51 
83 

NA 
NA 
NA 
NA 


840 
819 

NA 
NA 
NA 
NA 


v,-477- 
:-^445 ;■ 
"...;424', 
400- ! 

:„.-a-76^;- 

.:i.327 " 


61 

98 
126 
146 
165 

NA 


1,106 
1,083 
1,047 
1,010 
977 
NA 


^'".633.'--.; 
"-;'596.: 
.-„::567-,;: 
. 539 

.'■Ml 
468 


72 
116 
147 
170 
190 
233 


1,413 
1,387 
1,347 
1,307 
1,269 
1,196 


^;;812: \ 

1:733^-- 
i-.702-" 


99 
155 
195 
222 
246 
295 


2,080 
2,052 
2,006 
1,961 
1,916 
1,832 


-.1,243:: 
.:U25': 
-}Xl47;^ 
1.099 
I3OIO 
- ^98*- 


Minimum 

internal 

area of 

chimney 

(in.2) 


63 


: ' . - i 


78 




95 


r\ ' ;"■; 

» i -■-.'• = 

;r ..;■:,:-■■' 

% ■■-■'■ 

h ■■':■■[ \ 


132 




Maximum 

internal 

area of 

chimney 

(in.2) 


Seven times the listed appliance categorized vent area, flue collar area, or draft hood outlet areas. 



For SI units, 1 in. = 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.^ = 645 mm' 



104 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-11 

MASONRY CHIMNEY [NFPA 54-09: TABLE 13.1(d)] 















NUMBER OF APPLIANCES: 


SINGLE 






APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


SINGLE-WALL METAL CONNECTOR 


SINGLE-WALL METAL CONNECTOR DIAMETER - D (inch) 
TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 


3 


4 


5 


6 


7 


APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


HEIGHT 
H 
(ft) 


LATERAL 

L 
(ft) 


FAN 


I Max 


FAN 




FAN 


.f||iif: 


FAN 


lit! ! " 


FAN 


IJNAT^; 


MIn 


Max 


MIn 


Max 


MIn 


Max 


Min 


Max 


Min 


Max 


6 




2 


NA 


NA 


28 


NA 


NA 


52 


NA 


NA 


86^^ 


NA 


NA 


:U30 


NA 


NA 


180 






5 


NA 


NA 


25 


NA 


NA 


48 


NA 


NA 


U]\ 


NA 


NA 


nll6 


NA 


NA 


164 


8 




2 


NA 


NA 


1. 29 


NA 


NA 


55 


NA 


NA 


.mi 


NA 


NA 


mm. 


NA 


NA 


197 






5 
8 


NA 
NA 


NA 
NA 


Him 

1-23 


NA 

NA 


NA 
NA 




NA 
NA 


NA 
NA 




NA 
NA 


NA 
NA 


1 1 l^i. it 


NA 
NA 


NA 
NA 




10 




2 


NA 


NA 


- 31 


NA 


NA 


61 


NA 


NA 


■1021^ 


NA 


NA 


nm\ 


NA 


NA 


220 






5 


NA 


NA 


28 


NA 


NA 


56 


NA 


NA 


95^ 


NA 


NA 


I '■ 147 


NA 


NA 


203 






10 


NA 


NA 


24 


NA 


NA 


49 


NA 


NA 


m 


NA 


NA 


\m 


NA 


NA 


189 


15 




2 


NA 


NA 


35 


NA 


NA 


67 


NA 


NA 


iiwm. 


NA 


NA 


ii}7& 


166 


473 


h:249. 






5 


NA 


NA 


■: 32: 


NA 


NA 


nmi 


NA 


NA 


NA 


NA 


1I163U 


NA 


NA 


Wmi 






10 


NA 


NA 


'-''il 


NA 


NA 


''■':54^: 


NA 


NA 


\imi 


NA 


NA 


11151^ 


NA 


NA 


nm4^ 






15 


NA 


NA 


■ NA 


NA 


NA 


46 


NA 


NA 


-mi 


NA 


NA 


fll38'' 


NA 


NA 


198 


20 




2 


NA 


NA 


38 


NA 


NA 


73 


NA 


NA 


123- 


NA 


NA 


>'200 


163 


520 


273 






5 


NA 


NA 


35 


NA 


NA 


67 


NA 


NA 


1151 


NA 


NA 


:;183 


NA 


NA 


252 






10 


NA 


NA 


I^NA 


NA 


NA 


59 


NA 


NA 


;|lS4l 


NA 


NA 


\wmi 


NA 


NA 


.:235 






15 


NA 


NA 


iftSA, 


NA 


NA 


i^mJi 


NA 


NA 


; ^119^1 


NA 


NA 


nmh 


NA 


NA 


um^ 






20 


NA 


NA 


■;,,■„ *„;;, :, 


NA 


NA 


-mu 


NA 


NA 


mmi 


NA 


NA 


llft^ 


NA 


NA 


iim' 


30 




2 


NA 


NA 


41 


NA 


NA 


81 


NA 


NA 


'mil 


NA 


NA 


iiiis 


158 


578 


302 






5 


NA 


NA 


NA 


NA 


NA 


75 


NA 


NA 


127?! 


NA 


NA 


:^i96 


NA 


NA 


279 






10 


NA 


NA 


. NA 


NA 


NA 


66 


NA 


NA 


113^ 


NA 


NA 


Iii82 


NA 


NA 


260 






15 


NA 


NA 


HNA 


NA 


NA 


: NA. : 


NA 


NA 


iiasfi 


NA 


NA 


ilWS:: 


NA 


NA 


im 






20 
30 


NA 

NA 


NA 
NA 


UNA 


NA 
NA 


NA 
NA 




NA 
NA 


NA 
NA 


■:Umi 


NA 
NA 


NA 
NA 




NA 

NA 


NA 
NA 


iimi 


50 




2 


NA 


NA 


^NA 


NA 


NA 


91 


NA 


NA 


tm 


NA 


NA 


IJ25G 


NA 


NA 


350 






5 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


149- 


NA 


NA 


■::-228 


NA 


NA 


321 






10 


NA 


NA 


. NA 


NA 


NA 


NA : 


NA 


NA 


1361 


NA 


NA 


v=212 


NA 


NA 


301 






15 
20 


NA 
NA 


NA 
NA 


i:NA 

Urn- 


NA 
NA 


NA 
NA 


.:NA , 

iilml 


NA 
NA 


NA 
NA 




NA 
NA 


NA 
NA 


II19S. 


NA 

NA 


NA 
NA 


1 1 278 ., 






30 


NA 


NA 


imA 


NA 


NA 


^'NA:^ 


NA 


NA 


-mi. 


NA 


NA 


W^ 


NA 


NA 


f!MA- 




Minimum 












. 




■ M ;| 




'ill ■ : ' 










internal 
















* 




■ I ' 










area of 




12 






19 




28 




38 


ii-i: .■ . 




50 






chimney 






i I ^ 












mill: 










(in.2) 












UfHii 




mm 




' ". .'■;■: 






illMn 




Maximum 
























internal 
























area of 

chimney 

(in.^) 


Sever 


1 times the Hsteo 


appliar 


ice categorized a 


/ent area, flue collar are 


a, or draft hood 


outlet ar 


eas. 







For SI units, 1 in. = 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.^ = 645 mm^. 



2010 CALIFORNIA PLUMBING CODE 



105 



WATER HEATERS 



TABLE 5-11 

MASONRY CHIMNEY [NFPA 54-09: TABLE 13.1(d)] (continued) 







NUMBER OF APPLIANCES: 


SINGLE 


APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


SINGLE-WALL METAL CONNECTOR 








SINGLE-WALL METAL CONNECTOR DIAMETER - 


-D(inch) 
















TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 






8 


9 


10 


12 


APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


HEIGHT 


LATERAL 


FAN 


NAT 


FAN 


i^mll 


FAN 


liffHi 


FAN 


■■^^im 


H 
(tt) 


L 
(ft) 










H si^ 










Min 


Max 


jyiax ' 


Min 


Max 




Min 


Max 


m^-' 


Min 


Max 


-yiiiy 


6 


2 


NA 


NA 


247 


NA 


NA 


319 : 


NA 


NA 


; 400 


NA 


NA 


580 i 




5 


NA 


NA 


-r?30 


NA 


NA 


297 


NA 


NA 


:■: 375 


NA 


NA 


560 :: 


8 


2 


NA 


NA 


: 265 


NA 


NA 


\349h 


382 


725 


Hlf445 ■ 


549 


1,021 


. ^1^ 




5 
8 


NA 
NA 


NA 

NA 


246- 

;^237;'^ 


NA 
NA 


NA 
NA 




NA 
NA 


NA 
NA 


iH08!i 


673 

747 


1,003 
985 




10 


2 


216 


518 


■■-; 297 ' 


271 


654 


387t^; 


373 


808 


ii'mo 


536 


1,142 


722 n 




5 


NA 


NA 


; 216 


334 


635 


364 J 


459 


789 


. 465 


657 


1,121 


710 




10 


NA 


NA 


-^261 


NA 


NA 


345;:: 


547 


758 


^: 441 


771 


1,088 


665,. 


15 


2 


211 


611 


"-:'335-" ; 


264 


776 


:;.440|l 


362 


965 


Bm:-. 


520 


1,373 


^ mXk 




5 


261 


591 


- 3,12 ■ ' 


325 


755 


nw4il 


444 


942 


ill 153111 


637 


1,348 


■iUSpili 




10 


NA 


NA 


: 294 ' 


392 


722 


-3-92|i 


531 


907 


ijiiM- 


749 


1,309 


■■'^'IM 




15 


NA 


NA 


1. 1 : 


452 


692 


372U; 


606 


873 


JJ^HSI 


841 


1,272 


738; 


20 


2 


206 


675 


; 374 


258 


864 


490 


252 


1,079 


;; 625 


508 


1,544 


950 




5 


255 


655 


348 


317 


842 


461:, 


433 


1,055 


n|:594 


623 


1,518 


9ao , 




10 


312 


622 


: ",330 ; 


382 


806 


■■ 437! 1 


517 


1,016 


Im^:^ 


733 


1,475 


'■ mM 




15 


NA 


NA 


•;-~.3!i:- 


442 


773 


HHWii 


591 


979 


limn I 


823 


1,434 


v-mm 




20 


NA 


NA 


"•:292^- 


NA 


NA 


-S92fr 


663 


944 


isio- 

i i - '■ 


911 


1,394 


-■^mm 


30 


2 


200 


759 


; 420 


249 


982 


556 I 


340 


1,237 


;jr715 


489 


1,789 


1,110^^ 




5 


245 


737 


a39i 


306 


958 


524 


417 


1,210 


.'; 680 


600 


1,760 


1,090 J 




10 


300 


703 


;. 370 


370 


920 


496,; 


500 


1,168 


«!i.644 


708 


1,713 


1,020; 1 




15 


NA 


NA 


349:. 


428 


884 


iimuii 


572 


1,128 


[If {615:-. 


798 


1,668 




20 


NA 


NA 


,327:-- 


NA 


NA 


tmsm 


643 


1,089 


883 


1,624 


\vMm 




30 


NA 


NA 


; ; '"28:i ' ' 


NA 


NA 


'■^08f|; 


NA 


NA 


wm^' 


1,055 


1,539 


^ -^lli 


50 


2 


191 


837 


,:;475 


238 


1,103 


631 


323 


1,408 


'! 810 


463 


2,076 


1,240- 




5 


NA 


NA 


" 442 


293 


1,078 


593 


398 


1,381 


if 770 


571 


2,044 


1,220 




10 


NA 


NA 


^ 420 


355 


1,038 


562: ii 


447 


1,337 


i ^728 


674 


1,994 


1,140 ;| 




15 


NA 


NA 


-■■■395 - 


NA 


NA 


nmm 


546 


1,294 


iWv^ 


761 


1,945 


■ \M^^^ 




20 


NA 


NA 


,370:. 


NA. 


NA 


Hl50|ll^ 


616 


1,251 


liliesffi 


844 


1,898 


\0p~ 




30 


NA 


NA 


; 318 


NA 


NA 


^^■458|l| 


NA 


NA 


[IP^io. 


1,009 


1,805 


970: 


] 


Vlinimum 














;!t ■ 










internal 
























area of 




63 




78 


■ ■ > ^ :| 


95 


llii;;:- 




132 






chimney 










Kprflp 




IIIIIUk 






^^f'^^ 




(in.^) 










mim 




lillni? 






^ 


Maximum 






















internal 






















area of 


Seven t 


imes the 1 


isted app 


iiance categorized vent area, 


flue collar area, or 


draft hood 


I outlet an 


sas. 






chimney 






















(in.2) 





















For SI units, 1 in. = 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.^ = 645 mm^. 



106 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-12 

SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS CEMENT VENT [NFPA 54: TABLE 13.1(e)] 





NUMBER OF APPLIANCES: 


SINGLE 


APPLIANCE TYPE: 


DRAFT HOOD-EQUIPPED 


APPLIANCE VENT CONNECTION: 


CONNECTED DIRECTLY TO PIPE OR VENT 










DIAMETER -D (inch) 




HEIGHT 
H 
(ft) 


LATERAL 

L 
(ft) 




TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM 




3 


4 


5 


6 


7 


8 


10 


12 


APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


MAXIMUM APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


6 





39 


70 


116 


170 


232 


312 


500 


750 




2 


31 


55 


94 


141 


194 


260 


415 


620 




5 


28 


51 


88 


128 


177 


242 


390 


600 


8 





42 


76 


126 


185 


252 


340 


542 


815 




2 


32 


61 


102 


154 


210 


284 


451 


680 




5 


29 


56 


95 


141 


194 


264 


430 


648 




10 


24 


49 


86 


131 


180 


250 


406 


625 


10 





45 


84 


138 


202 


279 


372 


606 


912 




2 


35 


67 


HI 


168 


233 


311 


505 


760 




5 


32 


61 


104 


153 


215 


289 


480 


724 




10 


27 


54 


94 


143 


200 


274 


455 


700 




15 


NA 


46 


84 


130 


186 


258 


432 


666 


15 





49 


91 


151 


223 


312 


420 


684 


1,040 




2 


39 


72 


122 


186 


260 


350 


570 


865 




5 


35 


67 


110 


170 


240 


325 


540 


825 




10 


30 


58 


103 


158 


223 


308 


514 


795 




15 


NA 


50 


93 


144 


207 


291 


488 


760 




20 


NA 


NA 


82 


132 


195 


273 


466 


726 


20 





53 


101 


163 


252 


342 


470 


770 


1,190 




2 


42 


80 


136 


210 


286 


392 


641 


990 




5 


38 


74 


123 


192 


264 


364 


610 


945 




10 


32 


65 


115 


178 


246 


345 


571 


910 




15 


NA 


55 


104 


163 


228 


326 


550 


870 




20 


NA 


NA 


91 


149 


214 


306 


525 


832 


30 





56 


108 


183 


276 


384 


529 


878 


1,370 




2 


44 


84 


148 


230 


320 


441 


730 


1,140 




5 


NA 


78 


137 


210 


296 


410 


694 


1,080 




10 


NA 


68 


125 


196 


274 


388 


656 


1,050 




15 


NA 


NA 


113 


177 


258 


366 


625 


1,000 




20 


NA 


NA 


99 


163 


240 


344 


596 


960 




30 


NA 


NA 


NA 


NA 


192 


295 


540 


890 


50 





NA 


120 


210 


310 


443 


590 


980 


1,550 




2 


NA 


95 


171 


260 


370 


492 


820 


1,290 




5 


NA 


NA 


159 


234 


342 


474 


780 


1,230 




10 


NA 


NA 


146 


221 


318 


456 


730 


1,190 




15 


NA 


NA 


NA 


200 


292 


407 


705 


1,130 




20 


NA 


NA 


NA 


185 


276 


384 


670 


1,080 




30 


NA 


NA 


NA 


NA 


222 


330 


605 


1,010 



For SI units, 1 in. = 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.^ = 645 mm^ 



2010 CALIFORNIA PLUMBING CODE 



107 



WATER HEATERS 



TABLE 5-13 

EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.1(f)] 





NUMBER OF APPLIANCES: 


SINGLE 


APPLIANCE TYPE: 


NAT 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


;^ ' INTEtoEb USE: MWIMUfeS ALlio^ tHPi^ RArjfKSOIfSfW^E-HEAlilNG APPLIANCE INTHOU^NDS OF BTU PER HOUR 


'^■"•■'": '-[::'• 


VENT HEIGHT 
H 
(tt) 


INTERNAL AREA OF CHIMNEY (inch^) 


12 


19 


28 38 50 63 


78 


113 


6 


Local 99% winter design temperature: 37°F or greater 

















8 

















10 

















15 


NA 














20 


NA 


NA 


123 190 249 184 








30 


NA 


NA 


NA NA NA 393 


334 





50 


NA 


NA 


NA NA NA NA 


NA 


579 


6 


Local 99% winter design temperature: 27°F to 36°F 








68 116 156 180 


212 


266 


8 








82 127 167 187 


214 


263 


10 





51 


97 141 183 201 


225 


265 


15 


NA 


NA 


NA NA 233 253 


274 


305 


20 


NA 


NA 


NA NA NA 307 


330 


362 


30 


NA 


NA 


NA NA NA 419 


445 


485 


50 


NA 


NA 


NA NA NA NA 


NA 


763 


6 


Local 99% winter design temperature: 17°F to 26°F 


NA 


NA 


NA NA NA 215 


259 


349 


8 


NA 


NA 


NA NA 197 226 


264 


352 


10 


NA 


NA 


NA NA 214 245 


278 


358 


15 


NA 


NA 


NA NA NA 296 


331 


398 


20 


NA 


NA 


NA NA NA 352 


387 


457 


30 


NA 


NA 


NA NA NA NA 


507 


581 


50 


NA 


NA 


NA NA NA NA 


NA 


NA 


6 


Local 99% winter design temperature: 5°F to 16°F 


NA 


NA 


NA NA NA NA 


NA 


416 


8 


NA 


NA 


NA NA NA NA 


312 


423 


10 


NA 


NA 


NA NA NA 289 


331 


430 


15 


NA 


NA 


NA NA NA NA 


393 


485 


20 


NA 


NA 


NA NA NA NA 


450 


547 


30 


NA 


NA 


NA NA NA NA 


NA 


682 


50 


NA 


NA 


NA NA NA NA 


NA 


972 


5 


Local 99% winter design temperature: -10°F to 4°F 


NA 


NA 


NA NA NA NA 


NA 


484 


8 


NA 


NA 


NA NA NA NA 


NA 


494 


10 


NA 


NA 


NA NA NA NA 


NA 


513 


15 


NA 


NA 


NA NA NA NA 


NA 


586 


20 


NA 


NA 


NA NA NA NA 


NA 


650 


30 


NA 


NA 


NA NA NA NA 


NA 


805 


50 


NA 


NA 


NA NA NA NA 


NA 


1,003 








Local 99%. winter design temperature: -11°F or lower 












Not recommended for any vent configurations 







For SI units, 1 in. = 25.4 mm, 1 in.^ = 645 mm^, 1 ft. = 0.305 m, 1,000 Btu per hr = 0.293 kW, °C = (°F - 32)/1.8. 
Note: See Figure 5-13 for a map showing local 99 percent winter design temperatures in the United States. 



108 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-14 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] 





NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


VENT CONNECTOR CAPACITY 


VENT 

HEIGHT 

H 

(ft) 


CONNECTOR 

RISE 

R 

(ft) 


TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER - D (inch) 


3 


4 


5 


6 


7 


APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 


FAN 


NAT 
Max 


FAN 


NAT 
Max 


FAN 


NAT 
Max 


FAN 


NAT 
Max 


FAN 


NAT 
Max 


MIn 


Max 


Min 


Max 


MIn 


Max 


MIn 


Max 


MIn 


Max 


6 


1 


22 


37 


26 


35 


66 


46 


46 


106 


72 


58 


164 


104 


77 


225 


142 




2 


23 


41 


31 


37 


75 


55 


48 


121 


86 


60 


183 


124 


79 


253 


168 




3 


24 


44 


35 


38 


81 


62 


49 


132 


.96 


62 


199 


139 


82 


275 


189 


8 


1 


22 


40 


27 


35 


72 


48 


49 


114 


^ .n6'-'^ 


64 


176 


109 


84 


243 


148 




2 


23 


44 


32 


36 


80 


57 


51 


128 


; 90 . 


66 


195 


il29 


86 


269 


175 




3 


24 


47 


36 


37 


87 


64 


53 


139 


laoi : 


67 


210 


145 


88 


290 


198 


10 


1 


22 


43 


28 


34 


78 


- 50 : 


49 


123 


---■78- 


65 


189 


I ii:3 : . 


89 


257 


154 




2 


23 


47 


33 


36 


86 


59- 


51 


136 


93 


67 


206 


1 13:4 : ^ 


91 


282 


182 , 




3 


24 


50 


37 : 


37 


92 


; 67; 


52 


146 


^104;. 


69 


220 


■■ ; ■; i- - f . 


94 


303 


, 205 .. 


15 


1 


21 


50 


30 


33 


89 


;: 53- 


47 


142 


:83--" 


64 


220 


i-M^.V- 


88 


298 


'. 163 \ ■ 




2 


22 


53 


^...2>$'--. 


35 


96 


-63^ J 


49 


153 


99 


66 


235 


fi]|42i< 


91 


320 


1 193. ^ i 




3 


24 


55 


\40;; 


36 


102 


-^ 7i: J 


51 


163 


ill : 


68 


248 


mil 


93 


339 


imii 


20 


1 


21 


54 


ym\ 


33 


99 


} ' 56 ■ 


46 


157 


•ari 


62 


246 


\mm 


86 


334 


tinUi 




2 


22 


57 


::m 


34 


105 


66 


48 


167 ia04:^ 


64 


259 


mmi 


89 


354 


f 12021: 




3 


23 


60 


[imi 


35 


110 


-74 


50 


176 \':n6''l 


66 


271 


ills!! 


91 


371 


^22^U 

' ?■ i- ? o 


30 


1 


20 


62 


;^33- 


31 


113 


1-59'/: 


45 


181 


:,9a- 


60 


288 


imn: 


83 


391 


1182^ 




2 


21 


64 


^ 39:: 


33 


118 


:7q: 


47 


190 


110": 


62 


299 


imi' 


85 


408 


:2i5:: 




3 


22 


66 


44;^ 


34 


123 


: • :79 ;- , 


48 


198 


-■124 : 


64 


309 


iimu 

i ; i : . j 


88 


423 


ml: 


50 


1 


19 


71 


36: 


30 


133 


64 ; 


43 


216 


lai: . : 


57 


349 


nws^- 


78 


477 


197 




2 


21 


73 


43 


32 


137 


76 


45 


223 


-M3A 


59 


358 


H^ 


81 


490 


234 




3 


22 


75 


48 


33 


141 


^^:\ 


46 


229 


:XU':- 


61 


366 


^194;- 


83 


502 


263 


100 


1 


18 


82 


37 


28 


158 


66 


40 


262 


^104: 


53 


442 


: 150 ^ 


73 


611 


204 




2 


19 


83 


44 


30 


161 


79 


42 


267 


:i:23..- 


55 


447 


: 178 


75 


619 


242 




3 


20 


84 


50 


31 


163 


89 


44 


272 


13B- 


57 


452 


200 


78 


627 


272 



COMMON VENT CAPACITY 


VENT 

HEIGHT 

H 






TYPE B DOUBLE-WALL COMMON VENT DIAMETER - 


D(inch) 






4 


5 


6 


7 


COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


FAN 


FAN 


NAT 


(ft) 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


#r^/VT 


6 


92 


81 


65 


140 


116 


103 ::; 


204 


161 


147 


309 


248 


200 


8 


101 


90 


73 


155 


129 


114 


224 


178 


163 


339 


275 


■,:2a3:r;;:: 


10 


110 


97 


79 


169 


141 


124 ;!: 


243 


194 


178 


367 


299 


„::242:r'^' 


15 


125 


112 


91 


195 


164 


.144-'::.; 


283 


228 


206 


427 


352 


;::280":'^.: 


20 


136 


123 


102 


215 


183 


■ 160:;!! 


314 


255 


229 - 


475 


394 


•:::a:10:::::: 


30 


152 


138 


118 


244 


210 


■^1B5-H 


361 


297 


.266; 


547 


459 


:; 3#-h. 


50 


167 


153 


134 


279 


244 


'■■mUii 


421 


353 


?i.310::: 


641 


547 


^^mm: 


100 


175 


163 


■HA 


311 


277 


y/Mllil 


489 


421 


i I W^^ ^ i 


751 


658 


[^mui 



For SI units, 1 in. = 25.4 mm, 1 in.^ - 645 mm^, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



2010 CALIFORNIA PLUMBING CODE 



109 



WATER HEATERS 



TABLE 5-14 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] (continued) 





NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE WALL CONNECTOR 


VENT CONNECTOR CAPACITY 


VENT 

HEIGHT 

H 

(ft) 


CONNECTOR 

RISE 

R 

(ft) 


TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER - D (inch) 


8 


9 


10 


APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 


FAN 


NAT 
Max 


FAN 


>;nat- ;: 

:';'Max^' }': 


FAN 


NAT 
Max 


Min 


Max 


Min 


Max 


Min 


Max 


6 


1 
2 
3 


92 
95 
97 


296 
333 
363 


185 

220 : 

248 , 


109 
112 
114 


376 
424 
463 


^^237:-|- 
^■:'a-82 -'J 
^■317-J 


128 
131 
134 


466 
526 

575 


289 
345 
386 


8 


1 
2 
3 


100 
103 
105 


320 
356 
384 


194: : 


118 
121 
123 


408 
454 
492 


:'--248 J 

:.:;294: I- 
r;33Q"'| 


138 
141 

143 


507 
564 
612 


303 
358 

■;!.-:402 


10 


1 
2 
3 


106 
109 
HI 


341 
374 
402 


^ ' { ■< i ^ ';: ?. i: ^ 


125 
128 
131 


436 
479 
515 


^-:257-l 
■w305-i' 
■::342Kl 


146 
149 
152 


542 
596 
642 


^■-■■314i:/ 

s-:;372;:;;-; 


15 


1 
2 
3 


110 
112 
115 


389 
419 
445 


MMM 


134 
137 
140 


493 
532 
565 


■^32V1 
;.--365-;| 


162 
165 
167 


609 
658 
700 


iiimik 


20 


1 
2 
3 


107 
110 
113 


436 
463 
486 


mmm 

! 1 !■ i ! ^ * -I ^- 1 


131 
134 
137 


552 
587 
618 


^■2$5~;;: 


158 
161 
164 


681 
725 
764 




30 


1 
2 
3 


103 
105 
108 


512 
535 
555 


H 12381 III 

iillilil 


125 
129 
132 


649 
679 
706 


305 14 


151 
155 
158 


802 
840 
874 


h mil . 

!! Mini 


50 


1 

2 
3 


97 
100 
103 


627 
645 
661 




120 
123 
126 


797 
820 
842 


-:V:39^^':| 


144 
148 
151 


984 
1,014 
1,043 




100 


1 

2 
3 


91 
94 

97 


810 
822 
834 


■^^^316-;^^ 

::;355-.^' 


112 
115 
118 


1,038 
1,054 
1,069 


^V341. :■ 
';,405-';' 

i;:^455:,/ 


135 
139 
142 


1,285 
1,306 
1,327 


.:417 

494 
555 



COMMON VENT CAPACITY 


VENT HEIGHT 
H 






TYPE B DOUBLE-WALL COMMON VENT DIAMETER - 


-D(inch) 






8 


9 


10 


COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


FAN 


FAN 


lilyMmyyrr: 


FAN 


FAN 


NAT ■ : 


FAN 


FAN 


NAT 


(ft) 


+FAN 


+NAT 


::::.i:|^H^fiii 


+FAN 


+NAT 


.: :.+NATF-: 


+FAN 


+NAT 




6 


404 


314 


r::!:iJ!:ifflri:!i- 


547 


434 


"■-33$;?-. 


672 


520 


MuwmiHi 


8 


444 


348 


:::::.|i29p:|jl| 


602 


480 


;^:p378Bn 


740 


577 


J;:.ll:Eii:r!:H:. 


10 


477 


377 


.,,|;|||:g:|,||:j 


649 


522 


-•;i40M^^r 


800 


627 


MWimMir 


15 


556 


444 


;;::::|i36i^ii.ii 


753 


612 


iiliHmtu 


924 


733 


mumMiM 


20 


621 


499 


'^--illlillil 


842 


688 


immm 

immM 


1,035 


826 


iiMmmii 


30 


720 


585 


,::ii||or||:i: 


979 


808 


1,209 


975 


.IlllHiii^Pi 


50 


854 


706 


y:jtiliil}I 


1,164 


977 


hiiiiosfLi 


1,451 


1,188 


riiriliSitiiti 


100 


1,025 


873 


l!r^1:#Plifl; 


1,408 


1,215 


lipMdofl^ 

1 ■; 1 1 tviff t r 1 


1,784 


1,502 


limmiMi^ 



For SI units, 1 in. = 25.4 mm, 1 in.^ = 645 mm^, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



110 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-14 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] (continued) 







NUMBER OF APPLIANCES: 


TWO OR MORE 




APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


VENT CONNECTOR CAPACITY 


VENT 

HEIGHT 

H 

(ft) 


CONNECTOR 
RISE 

(ft) 


TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER - D (Inch) 


12 


14 


16 


18 


APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 


FAN 


NAT 


FAN 


^NAT 
1 i ;iMax 


FAN 


NAT 


FAN 


NAT 


Min 


Max 


MIn 


Max 


Min 


Max 


Min 


Max 


6 


2 
4 
6 


174 
180 

NA 


764 
897 

NA 


' 616 

NA 


223 
230 

NA 


1,046 
1,231 

NA 


. . KA 


281 
287 

NA 


1,371 
1,617 

NA 


na;; 


346 
352 

NA 


1,772 
2,069 

NA 


■1,370* 
NA 


8 


2 
4 
6 


186 
192 

198 


822 

952 

1,050 


772 


238 
244 

252 


1,126 
1,307 
1,445 


|l!696 ^ 
-i;072 


298 
305 
313 


1,478 
1,719 
1,902 


1,390 


365 
372 
380 


1,920 
2,211 
2,434 


1,770" 


10 


2 
4 
6 


196 
201 
207 


870 

997 

1,095 


536 

Mm 


249 
256 
263 


1,195 

1,371 
1,509 


i: 730 

t:H924.. 


311 
318 

325 


1,570 
1,804 
1,989 


. 955; 


379 
387 
395 


2,049 
2,332 
2,556 


1,205 


15 


2 
4 
6 


214 

221 
228 


967 
1,085 
1,181 


568 

•11856 ; 

,;„ ,t, ': f^ ? ,-^ r ' 


272 
279 
286 


1,334 
1,499 
1,632 


:\ 190 

1.006 


336 
344 
351 


1,760 
1,978 
2,157 


1,030 ' 
• 1,320. i 


408 
416 

424 


2,317 
2,579 
2,796 


1,305 

■ 2,02? 1 


20 


2 
4 
6 


223 
230 

237 


1,051 

1,162 
1,253 


748 


291 
298 
307 


1,443 
1,597 
1,726 


rim- 

1,064 

li.288 


357 
365 
373 


1,911 
2,116 
2,287 


'%mi 

1,395- ' 


430 

438 
450 


2,533 
2,778 
2,984 


1^^5; 
1,765 

2,1.45. 


30 


2 
4 
6 


216 

223 
231 


1,217 
1,316 
1,400 


952 


286 
294 

303 


1,664 
1,802 
1,920 


UP^ou 
Haio 


367 
376 
384 


2,183 
2,366 
2,524 


mm 

1,830; 


461 
474 
485 


2,891 
3,110 
3,299 


2,340 


50 


2 
4 
6 


206 
213 
221 


1,479 
1,561 
1,631 




273 
281 
290 


2,023 
2,139 
2,242 


11,575 \ 


350 
359 
369 


2,659 
2,814 
2,951 


■MM 

'2,0S$|I 


435 
447 
461 


3,548 
3,730 
3,893 




100 


2 
4 
6 


192 
200 
208 


1,923 
1,984 
2,035 


712 


254 
263 
272 


2,644 
2,731 
2,811 


1,050 

tt,346 


326 
336 
346 


3,490 
3,606 
3,714 


1,370 ! 

l,76fij 


402 
414 
426 


4,707 
4,842 
4,968 


1,740 



COMMON VENT CAPACITY 



TYPE B DOUBLE-WALL COMMON VENT DIAMETER - D (Inch) 



VENT 

HEIGHT 

H 

(ft) 



12 



14 



16 



18 



COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



FAN 
+FAN 



FAN 
+NAT 



NAT 



FAN 
+FAN 



FAN 
+NAT 




FAN 
+FAN 



FAN 
+NAT 



NAT 



FAN 
+FAN 



FAN 
+NAT 



NAT 

i,..,;^„;;^.aJ.f f f If 




10 
15 
20 
30 
50 
100 



900 
994 
1,076 
1,247 
1,405 
1,658 
2,024 
2,569 



696 

773 

841 

986 

1,116 

1,327 

1,640 

2,131 



652 

712. 

1,025 
1,280 



1,284 
1,423 
1,542 
1,794 
2,006 
2,373 
2,911 
3,732 



990 
1,103 
1,200 
1,410 
1,588 
1,892 
2,347 
3,076 



1,525 
1,863; 



1,735 
1,927 
2,093 
2,440 
2,722 
3,220 
3,964 
5,125 



1,336 
1,491 
1,625 
1,910 
2,147 
2,558 
3,183 
4,202 



il90 
i 4300 

uli|69(y^ 
't,990 
.. 2,430 



2,253 
2,507 
2,727 
3,184 
3,561 
4,197 
5,184 
6,749 



1,732 
1,936 
2,113 
2,484 
2,798 
3,326 
4,149 
5,509 



1 1 rr f I 
2,52iJ' 

3.om, 

Miit 



For SI units, 1 in. - 25.4 mm, 1 in.^ = 645 mm^ 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



2010 CALIFORNIA PLUMBING CODE 



111 



WATER HEATERS 



TABLE 5-14 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] (continued) 



NUMBER OF APPLIANCES: TWO OR MORE 



APPLIANCE TYPE: 



CATEGORY I 



APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 



VENT CONNECTOR CAPACITY 



VENT 

HEIGHT 

H 

(ft) 



CONNECTOR 

RISE 

R 

(ft) 



TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER - O (inch) 



20 



22 



24 



APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



FAN 



Min 



Max 



111 ,1 '• 



FAN 



Min 



Max 




FAN 



Min 



Max 



NAT 

■ |£: , . 



NA 
NA 
NA 



NA 
NA 

NA 



- 1 N A 
^iSTA 



NA 

NA 
NA 



NA 

NA 
NA 



NA 
NA 
NA 



NA 
NA 
NA 



'na?' 

NA: 



NA 
471 
478 



NA 
,737 
.018 



1 1 i ^WM I ^ i 



NA 
560 
568 



NA 
3,319 
3,665 



2^40 



NA 
662 
669 



NA 
3,957 
4,373 



^2|5fj|p 
3,130" 



10 



NA 
486 
494 



NA 
887 
,169 






NA 
581 
589 



NA 
3,502 
3,849 




NA 
686 
694 



NA 
4,175 
4,593 



•NAi 

ml-' 



15 



NA 
523 
533 



NA 
,197 
.470 



HNA 



NA 
624 
634 



NA 
3,881 
4,216 



NA 




NA 
734 
743 



NA 
4,631 
5,035 



NA 

.2,96f| : 



20 



NA 
554 
567 



NA 
,447 
,708 



niMA 

Miso 



NA 
661 
671 



NA 
4,190 
4,511 



NA 
772 
785 



NA 
5,005 
5,392 



3,1^0 

■3,79b:.. 



30 



NA 
619 
632 



NA 
.840 
,080 



Mltm- ■' 



NA 
728 
741 



NA 
4,861 
4,976 



3,4^80 



NA 
847 
860 



NA 
5,606 
5,961 



3;410n:- 
4,150 



50 



NA 
580 
594 



NA 
,601 
,808 






NA 
709 

724 



NA 
5,569 
5,826 






NA 
851 
867 



NA 
.,633 
1,943 



4,620 ^ 



100 



NA 
523 
539 



NA 
,982 
,143 



SA 



NA 
639 
654 



NA 
7,254 
7,453 



:H4' : 
iilflli! 



NA 
769 
786 



NA 
;,650 
;,892 



NA 



COMMON VENT CAPACITY 



VENT HEIGHT 
H 
(ft) 



FAN 
+FAN 



TYPE B DOUBLE-WALL COMMON VENT DIAMETER - D (inch) 



20 



22 



24 



COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



FAN 
+NAT 




FAN 
+FAN 



FAN 
+NAT 



mm 



FAN 
+FAN 



FAN 
+NAT 



:.NAT^ 



10 
15 

20 
30 
50 
100 



2,838 
3,162 
3,444 
4,026 
4,548 
5,303 
6,567 
8,597 



2,180 
2,439 
2,665 
3,133 
3,552 
4,193 
5,240 
6,986 



3,488 
3,890 
4,241 
4,971 
5,573 
6,539 
8,116 
10,681 



2,677 
2,998 
3,278 
3,862 
4,352 
5,157 
6,458 
8,648 



||2i490n 

llilf ^■^»ll 
|l3il20^-: 

l[3:,6B0^ 

||||500-. ?| 



4,206 
4,695 
5,123 
6,016 
6,749 
7,940 
9,837 
13,004 



3,226 
3,616 
3,957 
4,670 
5,261 
6,247 
7,813 
10,499 



hi 



2,390 r 
2,680 

g,iii it 

i r IT I g ^ I n 

3,8Q0: 
4,480 



For SI units, 1 in. = 25.4 mm, 1 in.^ = 645 mm^, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



112 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-15 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(b)] 

















NUMBER OF APPLIANCES: 


TWO OR MORE 






APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


SINGLE-WALL METAL CONNECTOR 


VENT CONNECTOR CAPACITY 


VENT 

HEIGHT 

H 

(ft) 


CONNECTOR 

RISE 

R 

(ft) 


SINGLE-WALL METAL VENT CONNECTOR DIAMETER - D (inch) 


3 


4 


5 


6 


7 


APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 


FAN 


Max 


FAN 


Max 


FAN 


pi 


FAN 




FAN 


tfpfi! 


Min 


Max 


Min 


Max 


Min 


Max 


Min 


Max 


Min 


Max 


6 


1 


NA 


NA 


26 


NA 


NA 


46 


NA 


NA 


71 


NA 


NA 


1 102 


207 


223 


'1140 




2 


NA 


NA 


31 


NA 


NA 


55 


NA 


NA 


85 


168 


182 


123 


215 


251 


. 167 




3 


NA 


NA 


34 


NA 


NA 


62 


121 


131 


95 


175 


198 


138 


222 


273 


; i'88 


8 


1 


NA 


NA 


27 


NA 


NA 


48 


NA 


NA 


' ; 75 ■ 


NA 


NA 


no6 


226 


240 


i\m. 




2 


NA 


NA 


: 32 


NA 


NA 


-57- 


125 


126 


i Wa 


184 


193 


:|l2ti^ 


234 


266 


urn 




3 


NA 


NA 


: 35.. 


NA 


NA 


IM: 


130 


138 


Itfl'i 


191 


208 


siiiiy 


241 


287 


Mi: 


10 


1 


NA ■ 


NA 


:^2^ ^ 


NA 


NA 


^50- 


119 


121 


'itf'l 


182 


186 


mm 


240 


253 


iiiswi 




2 


NA 


NA 


33 


84 


85 


50 


124 


134 


!J9i- 


189 


203 


ifWir 


248 


278 


^ 11831 ■ 




3 


NA 


NA 


36 


89 


91 


67 


129 


144 


i wa 


197 


217 


lSi48. 


257 


299 


^303:-: 


15 


1 


NA 


NA 


29 


79 


87 


52 


116 


138 


81 


177 


214 


116 


238 


291 


'iI58 




2 


NA 


NA 


34 


83 


94 


62 


121 


150 


97 


185 


230 


^ 138 


246 


314 


-189 




3 


NA 


NA 


39 


87 


100 


70 


127 


160 


109 


193 


243 


SJ57 


255 


333 


m^. 


20 


1 


49 


56 


30 


78 


97 


[ ; 54 . ■ 


115 


152 


llllll! 


175 


238 


M£0r 


233 


325 


iili65;i 




2 


52 


59 


P.36;: 


82 


103 


umi^ 


120 


163 


182 


252 


iiiiy 


243 


346 






3 


55 


62 


^<Hou 


87 


107 


im^] 


125 


172 


190 


264 


liWfs 


252 


363 


mn 


30 


1 


47 


60 


31 


77 


110 


"'SI' 


112 


175 


!!S9-^ 


169 


278 


?129- 


226 


380 


l»5> = 




2 


51 


62 


37 


81 


115 


61 


117 


185 


106 


177 


290 


\\^2' 


236 


397 


'iW$-- 




3 


54 


64 


42 


85 


119 


76 


122 


193 


120 


185 


300 


■ ill 


244 


412 


;235 


50 


1 


46 


69 


34 


75 


128 


60 


109 


207 


96 


162 


336 


:137 


217 


460 


188 




2 


49 


71 


40 


79 


132 


72 


114 


215 


113 


170 


345 


Ui64 


226 


473 


|223 




3 


52 


72 


45 


83 


136 


82 


119 


221 


IMi] 


178 


353 


1 11186; 


235 


486 


Mm.i 


100 


1 


45 


79 


.;34:i 


71 


150 


wrnii 


104 


249 


llp^ll 


153 


424 


Ma\ 


205 


585 


mm 




2 


48 


80 


:^4l^i 


75 


153 


nm'\ 


110 


255 


liiMii 


160 


428 


m 


212 


593 


mm\ 




3 


51 


81 


^ ■ 4^ 


79 


157 


iV%5H 


114 


260 


|i|p!s 


168 


433 


222 


603 


WM\ 




COMMON VENT CAPACITY 


VENT 

HEIGHT 

H 

(ft) 




TYPE B DOUBLE 


-WALL COMMON VENT C 


>iAMETE 


R-D{inch) 


4 


5 


6 


7 


COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


FAN 
+FAN 


FAN 
+NAT 




FAN 
+FAN 


FAN 
+NAT 


h^NATII 


FAN 
+FAN 


FAN 
+NAT 


i'PP 


FAN 
+FAN 


FAN 
+NAT 


''^'^■^tkiitk 


6 


NA 


78 


;j-^64 : 


NA 


113 


V..:W-. 


200 


158 






304 


244 


mmw 


8 


NA 


87 


: : 71 


NA 


126 


Ill 


218 


173 




331 


269 


■!!2|i8r*- 


10 


NA 


94 


76 


163 


137 


120 


237 


189 




■ 174 ■ir 


357 


292 


;,ii6 


15 


121 


108 


88 


189 


159 


140 


275 


221 




:200a 1 


416 


343 


,'274 


20 


131 


118 


98 


208 


177 


156 


305 


247 




22^0 


463 


383 


: 302 


30 


145 


132 


Hi 113 


236 


202 


180 


350 


286 




533 


446 


iii: 


50 


159 


145 




268 


233 


^:.m: 


406 


337 




njiii \ 


622 


529 


100 


166 


153 


297 


263 


linmii 


469 


398 




If llllll 


726 


633 


iiiiiiii 



For SI units, 1 in. = 25.4 mm, 1 in.^ = 645 mm^, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



2010 CALIFORNIA PLUMBING CODE 



113 



WATER HEATERS 



TABLE 5-15 

TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(b)] (continued) 









NUMBER OF APPLIANCES: 


TWO OR MORE 




APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


SINGLE-WALL METAL CONNECTOR 


VENT CONNECTOR CAPACITY 


VENT 

HEIGHT 

H 

(ft) 


CONNECTOR 

RISE 

R 

(ft) 


SINGLE-WALL METAL VENT CONNECTOR DIAMETER - D(inch) 


8 


9 


10 


APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 


FAN 


-:-Max?f|l 


FAN 


.^": NAT- ■■ 

:;f^Max^' 


FAN 


HHNArfiif 

' Maxi'l 


Min 


Max 


Min 


Max 


Min 


Max 


6 


1 
2 
3 


262 
271 
279 


293 
331 
361 


183 ; : I 
219 ■ 

247 ; 


325 
334 
344 


373 
422 
462 


,,.234 
.\ 2U 

""-'316 


447 
458 
468 


463 
524 
574 


286 
344 
385 


8 


1 
2 
3 


285 
293 
302 


316 

353 
381 


. ■mull 
^^i28iili 

mlmlll 


352 
360 
370 


403 
450 
489 


^'.^.292-,. 


481 
492 
501 


502 
560 
609 


299 : , \ 

:- 355H! 


10 


1 

2 
3 


302 
311 
320 


335 
369 
398 


nffi96Hi| 


372 
381 
391 


429 
473 
511 


■-/:;252--: 
:■---; •■.302^ . 
-;- 339 


506 
517 
528 


534 
589 
637 


413 \ 


15 


1 
2 
3 


312 
321 
331 


380 
411 
438 


208 ^ 
248 ■ 

281 ;.,^ 


397 
407 
418 


482 

522 
557 


i 266 

'.:k317 


556 
568 
579 


596 
646 
690 


324 
387 
437 = 


20 


1 
2 
3 


306 
317 
326 


425 
453 
476 




390 
400 
412 


538 
574 
607 


:^::33l:.~, 
;;;:375:\^ 


546 
558 
570 


664 
709 
750 


■■ 336! HI 

mmm 


30 


1 
2 
3 


296 
307 
316 


497 
521 

542 


■ ■ ^274"!; 
309 ; 


378 
389 
400 


630 
662 
690 


: ::294 

-349 

; :■ 394 


528 
541 

555 


779 
819 
855 


'■ 35R ' \ 
425 ^ 
482 


50 


1 

2 
3 


284 
294 
304 


604 
623 
640 


245 :: 

293 ■ H 


364 

376 
387 


768 
793 
816 


;,;-3i4 

;-^';375 

'■r-423. . 


507 
520 
535 


951 

983 

1,013 


384 
458 \ 

. . 51B:j[| 


100 


1 
2 
3 


269 
279 
289 


774 
788 
801 


ffflifil 

na33gfff 


345 
358 
368 


993 
1,011 
1,027 


•-■.-.321-:-. 

;- ■■:383r.~-' 

■--'J431 ■ 


476 
490 
506 


1,236 
1,259 

1,280 


^::527!ni 



COMMON VENT CAPACITY 



VENT 

HEIGHT 

H 

(ft) 



FAN 
+FAN 



TYPE B DOUBLE-WALL COMMON VENT DIAMETER - D(inch) 



9 



10 



COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



FAN 
+NAT 



riff I 



FAN 
+FAN 



FAN 
+NAT 



i 1 ' f ;' ^ t f. jt r. 



FAN 
+FAN 



FAN 
+NAT 






m^ 

460: -i 

487 
553 

626 ; 

:■■; i :■ ■; "v.l 1 
(■ f ':' Iq38 I f 1 

IiIpMiIi 



10 
15 
20 
30 
50 
100 



398 
436 
467 
544 
606 
703 
833 
999 



310 
342 
369 
434 
487 
570 
686 
846 



mnn 
il?B5^:■- 

;309 

-357. :'.■ 
395 

illlliljl 



lift 



541 
592 
638 
738 
824 
958 
1,139 
1,378 



429 
473 
512 
599 
673 
790 
954 
L185 




I s^ I ^ ii :s r^^ i i 'fi. 



665 

730 

787 

905 

1,013 

1,183 

1,418 

1,741 



515 
569 
617 
718 
808 
952 
1,157 
1,459 



For SI units, 1 in. = 254 mm, 1 in.^ = 645 mm^ 1 ft. = 0.305 m, 1000 Btu per hr = 0293 kW. 



114 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-16 

MASONRY CHIMNEY [NFPA 54: TABLE 13.2(c)] 



NUMBER OF APPLIANCES: TWO OR MORE 



APPLIANCE TYPE: 



CATEGORY I 



APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 



VENT CONNECTOR CAPACITY 



VENT 

HEIGHT 

H 

(ft) 



CONNECTOR 

RISE 

R 

(ft) 



TYPE B DOUBLE-WALL VENT CONNECTOR DIAMETER - D(inch) 



6 



APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



FAN 



MIn 



Max 



V I ' ' ': 



FAN 



Min 



Max 



imti 

^ax! 



FAN 



Min 



Max 




FAN 



Min 



Max 



-mix' 



FAN 



Min 



Max 



mi 



tml 



24 

26 

27 



33 
43 
49 



;;2i 

; 28 
34 



39 
41 
42 



62 
79 
92 



40^ 

52 

61 



52 
53 
55 



106 
133 
155 



65 
67 
69 



194 
230 
262 



101 
124 

143 



87 
89 
91 



274 
324 
369 



lifaH 
life- ! 



24 
26 

27 



39 
47 

52 



22 
29 
34 



39 
40 
42 



72 
87 
97 



41 

53 
62 



55 
57 
59 



117 
140 
159 



69 
86 
98 



71 
73 
75 



213 
246 
269 



105 

127 
145 



94 
97 
99 



304 
350 
383 



■148 
179 
206 



10 



24 
26 

27 



42 
50 
55 



22 
29 
35 



38 
40 
41 



80 

93 

105 



42 

54 
63 



55 
57 
58 



130 
153 
170 




74 
76 
78 



232 
261 
284 



108 
129 

148 



101 
103 
106 



324 
366 
397 



J 53: 

nm : 



II 



15 



24 
25 
26 



48 
55 
59 



23 

r31^ 
H35:. 



38 
39 
41 



93 
105 
115 



44 

55 ^ 

64: 



54 
56 

57 



154 
174 
189 



72 
74 
76 



277 
299 
319 



114; 

134 i 



100 

103 
105 



384 
419 
448 






20 



24 
25 
26 



52 
58 
63 



{I24f^ 
mil.' 



37 
39 

40 



102 

114 
123 



: ' Mi I 



53 
55 

57 




71 
73 
75 



313 
335 
353 



liE9ii 
I f f ^ I II 



98 
101 
104 



437 
467 
493 



rm2u. 

t3 i f . ^ M l " !: 



30 



24 
25 
26 



54 
60 
64 



:^:: 

^32: 

36 



37 
38 
40 



111 
122 
131 



:48: 

;58: 

66 



52 
54 
56 



69 

72 
74 



357 
376 
392 



163- 



96 

99 

101 



504 
531 
554 






50 



23 
24 
26 



51 
59 
64 



25 
32 
36 



36 

37 
39 



116 
127 
135 



51 
61 
69 



51 
53 
55 



67 
70 

72 



405 
421 

435 



143 
161 
180 



92 
95 
98 



582 
604 
624 






100 



23 
24 
25 



46 
53 
59 



24 
31 
35 



35 
37 
38 



108 
120 
130 



50 
60 
68 



49 
51 

53 



65 
67 
69 



428 
444 
458 



155 
174 
193 



92 
94 



640 
660 
679 



h237 
260 
285 



COMMON VENT CAPACITY 


VENT 
HEIGHT 


MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (inch^) 


12 


19 


28 


38 


50 


COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


H 
(ft) 


FAN 
+FAN 


FAN 
+NAT 




FAN 
+FAN 


FAN 
+NAT 


^!;NATt.^ 
;+NAf ; 


FAN 
+FAN 


FAN 
+NAT 


iInMIi 

■imA 


FAN 
+FAN 


FAN 
+NAT 


^-NAT ; 


FAN 
+FAN 


FAN 
+NAT 




6 


NA 


74 




NA 


119 


45 I 


NA 


178 




NA 


257 


?^ioB- 


NA 


351 


mm; 


8 


NA 


80 


NA 


130 


53 


NA 


193 


'iMli^ 


NA 


279 


: 119 


NA 


384 


10 


NA 


84 


NA 


138 


56 


NA 


207 


imn 


NA 


299 


131 


NA 


409 


}mm 


15 


NA 


NA 


:imy^- 


NA 


152 


67 


NA 


233 


mx)6:^ 


NA 


334 


152 


523 


467 


mmn 


20 


NA 


NA 


■■• .: m ^ 


NA 


NA 


75 


NA 


250 


^-122.: 


NA 


368 


172 


565 


508 


;W:'-^' 


30 


NA 


NA 


.MA 


NA 


NA 


NA 


NA 


270 


-■'137 


NA 


404 


198 


615 


564 


;i7:8 ' 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA. 


NA 


NA 


NA 


NA 


620 


328 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


- na; 


NA 


NA 


NA 




NA 


NA 


348 



For SI units, 1 in. - 25.4 mm, 1 in.^ = 645 mm^ 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



2010 CALIFORNIA PLUMBING CODE 



115 



WATER HEATERS 



TABLE 5-16 

MASONRY CHIMNEY [NFPA 54: TABLE 13.2(c)] (continued) 



NUMBER OF APPLIANCES: TWO OR MORE 



APPLIANCE TYPE: 



CATEGORY I 



APPLIANCE VENT CONNECTION: TYPE B DOUBLE-WALL CONNECTOR 



VENT CONNECTOR CAPACITY 



VENT 

HEIGHT 

H 

(ft) 



CONNECTOR 

RISE 

R 

(ft) 



TYPE B DOUBLE-WALL VENT CONNECTOR DIAMETER - D (inch) 



9 



10 



APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 



FAN 



Min 



Max 






a Max 



( Mt 



FAN 



Min 



Max 



^ 1 ^- -I M 1 1 M I 
'plMaxI-^^ 



FAN 



Min 



Max 



l|l|iff|ll.|.i 
I iNATiJill 

fliiiiiiiiii 

* r* « t J?»S i ^ ^ is ^ ^ 

fflP^Xfllfl 



104 
107 
109 



370 
436 
491 



270 



124 
127 
129 



479 
562 
633 






145 
148 
151 



599 
694 
795 



M.;:..Bmi.lli 



.;439i 



113 
116 
119 



414 
473 
517 



210 
240 

276 



134 
137 
139 



539 
615 
672 



:267 

311 

;358 



156 
160 
163 



682 
776 
848 



;33Si 
:394;: 
452^ 



10 



120 
123 
126 



444 
498 
540 



216 

247 
281 



142 
145 
147 



582 
652 
705 



M-:277 



165 
168 
171 



739 
825 
893 



348 :i 

'407::! 
:463:i|t 



15 



125 

128 
131 



511 
558 
597 



1n|26();.; 



153 
156 
159 



658 
718 
760 



IT? 



illlB39l!H 

i%'fl»-^''i-^ till 



184 
187 
190 



824 
900 
960 



{liiMlll: 



20 



123 
126 
129 



584 
625 
661 



i\ 



mwm 

^ j ^ ^ h^%t til 



150 
153 
156 



752 
805 
851 



nnn 



B12l||i 



^ ^ .^ 4 ;r >S .^ :^ g :* I I 

r|iiif354.it|| 
l|jl||fl||| 



180 
184 
187 



943 
1,011 
1,067 



l3W|llf 



30 



119 
122 
125 



680 
715 
746 



H-3ir- 



145 
149 
152 



883 
928 
968 






175 
179 

182 



1,115 
1,171 
1,220 



I'.'ms 



50 



115 
118 
121 



798 
827 
854 



:294^ 

326 

357 



140 
143 
147 



1,049 
1,085 
1,118 






168 
172 
176 



1,334 
1,379 
1,421 



: 506101 
558^ 
611 



100 



109 
113 
116 



907 
933 
956 



334 
368 
399 



134 
138 
141 



1,222 
1,253 
1,282 



^::'454 
i;497 

U546;; 



161 
165 
169 



1,589 
1,626 
1,661 



596 

651 : 

_7Q5]£iJ 



COMMON VENT CAPACITY 


VENT 

HEIGHT 

H 


MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (inch^) 


63 


78 


113 


COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


FAN 


FAN 


IfllWllill 


FAN 


FAN 


liilli 


FAN 


FAN 


IttllliMilili 

:ri»iiilf. 


(ft) 


+FAN 


+NAT 


uMmmm 


+FAN 


+NAT 


+FAN 


+NAT 


6 
8 


NA 
NA 


458 
501 


liillii 


NA 
724 


582 
636 


iiili 


1,041 
1,144 


853 
937 




10 


606 


538 


imimii; 


776 


686 


iniiimln 


1,226 


1,010 


■ :-^-^54ifi| 


15 


682 


611 


nrnmy- 


874 


781 


1,374 


1,156 


I'lrsmn 


20 


742 


668 


;n::325-: 


955 


858 


■. limiii 


1,513 


1,286 


^■;^^■64fcf|| 


30 


816 


747 


^;r-381- 


1,062 


969 


: ■.49^:1-:^ 


1,702 


1,473 


....:. 74$ :/:■■■: i 


50 


879 


831 


: ; 461 


1,165 


1,089 


606 ; ^ 


1,905 


1,692 


.■:■■:: 922 1 ;.^f 


100 


NA 


NA 


499 


NA 


NA 


6^\ ^ ; ^ 


2,053 


1,921 


1,058;;- 



For SI units, 1 in. - 25.4 mm, 1 in.^ = 645 mm^ 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



116 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-17 

MASONRY CHIMNEY [NFPA 54: TABLE 13.2(d)] 





NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


SINGLE-WALL METAL CONNECTOR 


VENT CONNECTOR CAPACITY 


VENT 

HEIGHT 

H 

(ft) 


CONNECTOR 

RISE 

R 

(ft) 


SINGLE-WALL METAL VENT CONNECTOR DIAMETER - D (Inch) 


3 


4 


5 


6 


7 


APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 


FAN 


NAT) 
Max : 


FAN 


NAT 

Max : 


FAN 


Max 


FAN 


W 1 
Max 


FAN 


NAT 

Maj( : 


Min 


Max 


Min 


Max 


Min 


Max 


Min 


Max 


Min 


Max 


6 


1 


NA 


NA 


::,-2l-: 


NA 


NA 


:'39"^^ 


NA 


NA 


m 


179 


191 


100^ 


231 


271 


140 




2 


NA 


NA 


: 28 : 


NA 


NA 


'-■.62:.- 


NA 


NA 


$4 


186 


227 


^i23r^- 


239 


321 


-*i72'-: 




3 


NA 


NA 


:,34- 


NA 


NA 




134 


153 


91 


193 


258 


142 : 


247 


365 


i^^:-. 


8 


1 


NA 


NA 


■.;21„ 


NA 


NA 


:.4o : 


NA 


NA 


m 


195 


208 


103 ^ 


250 


298 


\m 




2 


NA 


NA 


--:2S-: 


NA 


NA 


-52-:. 


137 


139 


'\B5-. 


202 


240 


vl25-: 


258 


343 


-177:.--. 




3 


NA 


NA 


■^34, ■■ 


NA 


NA 


,:my. 


143 


156 


m: : 


210 


264 


'.145. : 


266 


376 


■205 ■■:^ 


10 


1 


NA 


NA 


;22". 


NA 


NA 


-41).. 


130 


151 


70 


202 


225 


106 


267 


316 


^ 151:- 




2 


NA 


NA 


-29:.: 


NA 


NA 


rSr.: 


136 


150 


;86 


210 


255 


:i2g-^ 


276 


358 


181:: 




3 


NA 


NA 


■■34.'; 


97 


102 


■■/.W'.-: 


143 


166 


99 


217 


277 


:i47.'--- 

, ,; ,-, ,„ ij 


284 


389 


■207..: 


15 


1 


NA 


NA 


-, -23-^' 


NA 


NA 


■:?'43v 


129 


151 


:c73: 


199 


271 


am": 


268 


376 


"161;;: 




2 


NA 


NA 


' 30- 


92 


103 


":54. r 


135 


170 r,s8. : 


207 


295 


132 


277 


411 


189 




3 


NA 


NA 


^34;: 


96 


112 


^ ' ?3 ■ ■- 


141 


185 rioi- 


215 


315 


-i5i:. 


286 


439 


■'■213-^' 


20 


1 


NA 


NA 


-.23V 


87 


99 


V45:':^ 


128 


167 1:76:': 


197 


303 


'-my 


265 


425 


169 




2 


NA 


NA 


. 30 : 


91 


111 


•-•-55^ 


134 


185 1 .90:: 


205 


325 


136: 


274 


455 


195 




3 


NA 


NA 


.'^r: 


96 


119 


:^64:: 


140 


199 j;lp3;: 


213 


343 


■■154r 


282 


481 


219 


30 


1 


NA 


NA 


--24:--" 


86 


108 


47 , 


126 


187 j 80:: 


193 


347 


:-m':. 


259 


492 


IBS. 




2 


NA 


NA 


\'M-^ 


91 


119 


^■^■57./; 


132 


203 |::93^:. 


201 


366 


-■1:42 - 


269 


518 


205 




3 


NA 


NA 


-"--35- 


95 


127 


':i55/ 


138 


216 kifei 


209 


381 


■160 


277 


540 


-229-- 


50 


1 


NA 


NA 


■ "24- ■- 


85 


113 


^'m--' 


124 


204 j,;:87^ 


188 


392 


.139 


252 


567 


:2oa.r" 




2 


NA 


NA 


o'UA 


89 


123 


: 60.: 


130 


218 1 100 


196 


408 


U58--- -. 


262 


588 


:230:: 




3 


NA 


NA 


:/35':: 


94 


131 


-''^':- 


136 


231 !~ 112 : 

^, :,:„„;, ; ,; 


205 


422 


:'in&'' 


271 


607 


:255'-.;: 


100 


1 


NA 


NA 


-r23:" 


84 


104 


' 49 -: 


122 


200 \ %9 


182 


410 


•:^i5h- 


243 


617 


-232-^0 




2 


NA 


NA 


i^m:' 


88 


115 -59- 


127 


215 i 102=': 


190 


425 


.169;" 


253 


636 


=■254-: 




3 


NA 


NA 


^■M': 


93 


124 :€?-: 


133 


228 iJ15-- 


199 


438 


- i#^ 


262 


654 


'-2:79/- 



COMMON VENT CAPACITY 


VENT 

HEIGHT 

H 


MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (inch^) 


12 


19 


28 


38 


50 


COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


FAN 


FAN 


^HAt : 


FAN 


FAN ^ NAT 


FAN 


FAN i: NAT 


FAN 


FAN 


NAT. 


FAN 


FAN 


NAT^ 


(ft) 


+FAN 


+NAT 


-feNATu 


+FAN 


+NAT : +NAT 


+FAN 


+NAT \ m^ 


+FAN 


+NAT 


>I^AT 


+FAN 


+NAT 


tHAT 


6 


NA 


NA 


: '^ -: 25 , - 


NA 


118 1-45.; 


NA 


176 :.::7r-' 


NA 


255 


102 


NA 


348 


:: 1:42 -: 


8 


NA 


NA 


■^';28;^: 


NA 


128 r^.52..: 


NA 


190 I;:?! \ 


NA 


276 


::ilB 


NA 


380 


--^162--"^ 


10 


NA 


NA 


i'X^t\ 


NA 


136 1 .-:56,;; 


NA 


205 Yi-m- 


NA 


295 


•:'-l'29 ■■■■■■ 


NA 


405 


:17-5;- 


15 


NA 


NA 


'36'--- 


NA 


NA '''"■■-"66'. 


NA 


230 ' 105- 


NA 


335 


.150 : 


NA 


400 


210 


20 


NA 


NA 


.^;Na:- 


NA 


NA ^ •74;£- 


NA 


247 ;:i20;: 


NA 


362 


-nO'".-^ 


NA 


503 


■■:-240:..; 


30 


NA 


NA 


:^NA- 


NA 


NA rNX:: 


NA 


NA ;--135r- 


NA 


398 


195 


NA . 


558 


::'275 ..^ 


50 


NA 


NA 


tTHA---; 


NA 


NA I ;KA';:;- 


NA 


NA r;NA:: 


NA 


NA 


c -NA" ' 


NA 


612 


-325''- 


100 


NA 


NA 


.;na,; 


NA 


NA h:-NA,:: 


NA 


NA Tna.-;': 


NA 


NA 


:'NA--- 


NA 


NA 


";na "; 



For SI units, 1 in. = 25.4 nun, 1 in.^ = 645 mm^ 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



2010 CALIFORNIA PLUMBING CODE 



117 



WATER HEATERS 



TABLE 5-17 

MASONRY CHIMNEY [NFPA 54: TABLE 13.2(d)] (continued) 





NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


CATEGORY 1 


APPLIANCE VENT CONNECTION: 


SINGLE-WALL METAL CONNECTOR 


VENT CONNECTOR CAPACITY 


VENT 

HEIGHT 

H 

(ft) 


CONNECTOR 

RISE 

R 

(ft) 


SINGLE-WALL METAL VENT CONNECTOR DIAMETER - D (Inch) 


8 


9 


10 


APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR 


FAN 


NAT 
, Max 


FAN 


;-„NAT.:;: 


FAN 




Min 


Max 


Min 


Max 


Min 


Max 


6 


1 


292 


366 


200 : 


362 


474 


-.'^252-i-' 


499 


594 


:•>,.- 3-16 "' - 




2 


301 


432 


; -- 231 : '■ 


373 


557 


'-■■:-299/--^' 


509 


696 


,:. :376:;; 




3 


309 


491 


■ "-;169,'---^ 


381 


634 


. ■'::348'-■ 


519 


793 


/'.■■ 437 i ;'. 


8 


1 


313 


407 


. ,- 207 ':- 


387 


530 


"- ;.263.. . - 


529 


672 


,---331,.--- 




2 


323 


465 


•-• ,23S:- :■ 


397 


607 


::.309 


540 


766 


391 




3 


332 


509 


- Ml4 


407 


663 


;:-;,356:;: 


551 


838 


.-:-450- ' ' 


10 


1 


333 


434 


m_ 


410 


571 


- -; . -, -273 ■ : 


558 


727 


\ 343.:--, 




2 


343 


489 


■ '244 


420 


640 


-; ■•317:: - 


569 


813 


■.;,^'403.„v- 




3 


352 


530 


:-- .279-: : 


430 


694 


;.::;363::.: 


580 


880 


-"; :455-/^ 


15 


1 


349 


502 


-----225- ~ 


445 


646 L 29r : . 


623 


808 


■ -: ^6Sl 




2 


359 


548 


\ ^-256',:;-^ 


456 


706 [:-:::334: 


634 


884 


^:--,424r-- 




3 


368 


586 


-•■■•,289' -, ; 


466 


755 r\--;'-378-;:".' 


646 


945 


_/::A13 -_■::'; 


20 


1 


345 


569 


-: ,235-. ■-- 


439 


734 l^/rm^' :. 


614 


921 


•-,-"."-: -'387 ■--.- 




2 


355 


610 


•; - 266 - : ■ 


450 


787 L :348\" 


627 


986 


'<::;- 443-^;. ^ 




3 


365 


644 


--;:29s\;' 


461 


831 i-.:';;391-'- 


639 


1,042 


^^...496-:.; 


30 


1 


338 


665 


^;.250-; 


430 


864 r ;;330: - 


600 


1,089 


■ - 421:--: 




2 


348 


699 


■■- ,282". -. 


442 


908 T; • 372^ 


613 


1,145 


■x::"r^y:- 




3 


358 


729 


■•- ■J12- 


452 


946 * 412^ 


626 


1,193 


-::'-~52A--'': 


50 


1 


328 


778 


, " 287 - 


417 


1,022 r ^.BBS--;: 


582 


1,302 


m 




2 


339 


806 


,---■320:;'. 


429 


1,058 b "f425. . 


596 


1,346 


- '-■■•541 "-;■■- 




3 


349 


831 


..:'■ 3-51:- 


440 


1,090 {- ,-466 - 


610 


1,386 


-. : 597 , = 


100 


1 


315 


875 


-:'328;. ' 


402 


1,181 r •: 444. 


560 


1,537 


: -580- /: 




2 


326 


899 


361 


415 


1,210 rf: 488 .' 


575 


1,570 


-.--;634--\--. 




3 


337 


921 


■-, -3^2-- 


427 


1,238 1:-.. 52'9"V-; 


589 


1,604 


'Ml ■: 



COMMON VENT CAPACITY 


VENT 

HEIGHT 

H 


MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (inch') 


63 


78 


113 


COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


FAN 


FAN 


NAT 


FAN 


FAN 


^ NAT ; 


FAN 


FAN 


- NAT 


(ft) 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


+NAT 


+FAN 


+NAT 


. ^4NAT 


6 


NA 


455 


■ -~'-A%l--'r- 


NA 


579 


^.--■■:-24S^ V. 


NA 


846 


V ' -NA. ■ : 


8 


NA 


497 


'■'-' 217-''. 


NA 


633 


-,-.;-:2-77- - -' 


1,136 


928 


'. ■■:-405^V- 


10 


NA 


532 


- ^23*- ■: 


771 


680 


;:-:---30a, : 


1,216 


1,000 


t. :J450-::- 


15 


677 


602 


■;;. 280 \ 


866 


772 


Y': im "- 


1,359 


1,139 


^--'540-;-- 


20 


765 


661 


b.321\,- 


947 


849 


\/-./4i5^-- 


1,495 


1,264 


^ 640 


30 


808 


739 


- V377-:, 


1,052 


957 


490; 


1,682 


1,447 


' -: 740-'^-: 


50 


NA 


821 


' ,456 


1,152 


1,076 


/^•.6'00;^: 


1,879 


1,672 


.■::-SW'r- 


100 


NA 


NA 


;-494 


NA 


NA 


663 


2,006 


1,885 


'::^l,()46-v. 



For SI units, 1 in. = 25.4 mm, 1 in.^ = 645 mJn^ 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



118 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-18 

SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS CEMENT VENT [NFPA 54: TABLE 13.2(e)] 



NUMBER OF APPLIANCES: 



APPLIANCE TYPE: 



APPLIANCE VENT CONNECTION: 



TWO OR MORE 



DRAFT HOOD-EQUIPMENT 



DIRECTTO PIPE OR VENT 



VENT CONNECTOR CAPACITY 



TOTAL VENT 

HEIGHT 

H 

(ft) 



CONNECTOR 

RISE 

R 

(ft) 



VENT CONNECTOR DIAMETER - D (inch) 



6 



APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 



6-8 



21 
28 
34 



40 

53 
61 



68 
86 
98 



102 
124 
147 



146 

178 
204 



205 
235 
275 



15 



23 
30 
35 



44 
56 
64 



77 

92 

102 



117 
134 
155 



179 
194 
216 



240 
265 
298 



30 
and up 



25 
31 
36 



49 
58 



84 

97 

107 



129 
145 
164 



190 
211 

232 



270 
295 
321 



COMMON VENT CAPACITY 


TOTAL VENT 

HEIGHT 

H 

(ft) 


COMMON VENT DIAMETER - D (inch) 


4 


5 


6 


7 


8 


10 


12 


COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR 


6 


48 


78 


111 


155 


205 


320 


NA 


8 


55 


89 


128 


175 


234 


365 


505 


10 


59 


95 


136 


190 


250 


395 


560 


15 


71 


115 


168 


228 


305 


480 


690 


20 


80 


129 


186 


260 


340 


550 


790 


30 


NA 


147 


215 


300 


400 


650 


940 


50 


NA 


NA 


NA 


360 


490 


810 


1,190 



For SI units, 1 in. = 25.4 mm, 1 in.^ = 645 mm^ 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



TABLE 5-19 

EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(f)] 





NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


NAT + NAT 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


. dill ;nlL 


INTErfliD USE: COMBINED AlfUl^NCE Ml 


OaMUM INI^UT BATING IN||jOMSANDS |||Bpi P^ |0UR ] 


nllli^^ -111111 


VENT HEIGHT 
H 
(ft) 


INTERNAL AREA OF CHIMNEY (inch^) 


12 


19 


28 


38 


50 


63 


78 


113 


6 


25 


46 


71 


103 


143 


188 


246 




NA 


8 


28 


53 


82 


119 


163 


218 


278 




408 


10 


31 


56 


90 


131 


177 


236 


302 




454 


15 


NA 


67 


106 


152 


212 


283 


365 




546 


20 


NA 


NA 


NA 


NA 


NA 


325 


419 




648 


30 


NA 


NA 


NA 


NA 


NA 


NA 


496 




749 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 




922 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 




NA 



For SI units, 1 in. = 25.4 mm, 1 in.^ = 645 mm^, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 



2010 CALIFORNIA PLUMBING CODE 



119 



WATER HEATERS 



TABLE 5-20 

EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(g)] 





NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


NAT + NAT 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


? Jl! - ^ ■ ■ iN||lmED'U$i|Mir^Mutf Jkp^ Na|!|B|Pf spaoIIIIwnga^ »^^^i|WR' ' ' "'111^^ 


VENT HEIGHT 
H 
(ft) 




INTERNAL AREA OF CHIMNEY (inc 


h^) 






12 


19 


28 


38 


50 


63 


78 


113 


Local 99% winter design temperature: 37*^F or greater 


6 























NA 


8 


























10 


























15 


NA 























20 


NA 


NA 


NA 


NA 


NA 


184 








30 


NA 


NA 


NA 


NA 


NA 


393 


334 





50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


579 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


Local 99% winter design temperature: 27°F to 36°F 


6 








68 


NA 


NA 


180 


212 


NA 


8 








82 


NA 


NA 


187 


214 


263 


10 





51 


NA 


NA 


NA 


210 


225 


265 


15 


NA 


NA 


NA 


NA 


NA 


253 


274 


305 


20 


NA 


NA 


NA 


NA 


NA 


307 


330 


362 


30 


NA 


NA 


NA 


NA 


NA 


NA 


445 


485 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


763 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


Local 99% winter design temperature: 1 T¥ to 26°F 


6 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


8 


NA 


NA 


NA 


NA 


NA 


NA 


264 


352 


10 


NA 


NA 


NA 


NA 


NA 


NA 


278 


358 


15 


NA 


NA 


NA 


NA 


NA 


NA 


331 


398 


20 


NA 


NA 


NA 


NA 


NA 


NA 


387 


457 


30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


581 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


862 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


Local 99% winter design temperature: 5°F to 16°F 


6 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


8 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


10 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


430 


15 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


485 


20 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


547 


30 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


682 


50 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 






Local 99%) winter design temperature: 4°F or lower 












Not recommended for any vent configurations 









For SI units, 1 in. = 25.4 mm, 1 in.^ = 645 mm^, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW, °C = (°F - 32)/l .1 
Note: See Figure G.2.4 for a map showing local 99 percent winter design temperatures in the United States. 



120 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



TABLE 5-21 

EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(h)] 





NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


FAN + NAT 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


:-ii:^^^:^.; 




INTENDED USE: COMBINED APPLIANCE MAXIMUM INPUT RATING IN THOUSANDS OF BTU, PER HOUR 


;::..!:||li-'|-^'^^:.'^^ 


VENT HEIGHT 
H 
(ft) 


INTERNAL AREA OF CHIMNEY (inch^) 


12 


19 


28 


38 


50 


63 


78 


113 


6 


74 


119 


178 


257 


351 


458 


582 


853 


8 


80 


130 


193 


279 


384 


501 


636 


937 


10 


84 


138 


207 


299 


409 


538 


686 


1,010 


15 


NA 


152 


233 


334 


467 


611 


781 


1,156 


20 


NA 


NA 


250 


368 


508 


668 


858 


1,286 


30 


NA 


NA 


NA 


404 


564 


747 


969 


1,473 


50 


NA 


NA 


NA 


NA 


NA 


831 


1,089 


1,692 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1,921 



For SI units, 1 in. = 254 mm, 1 in? = 645 mm^ 1 ft. - 0.305 m, 1000 Btu per hr = 0.293 kW. 



2010 CALIFORNIA PLUMBING CODE 



121 



WATER HEATERS 



TABLE 5-22 

EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(i)] 





NUMBER OF APPLIANCES: 


TWO OR MORE 


APPLIANCE TYPE: 


FAN + NAT 


APPLIANCE VENT CONNECTION: 


TYPE B DOUBLE-WALL CONNECTOR 


;:^;r:::,::riNf^ 


IPliSEi ■:!Vll^ll^l:u|«|f lllll^ W^*W W W^^^^W^: AWillNf | 


lllf |ljQ03ANDS: Op p|l||:ii|i||Plp; | ;: 


VENT HEIGHT 
H 
(ft) 


INTERNAL AREA OF CHIMNEY (inch^) 


12 


19 


28 


38 


50 


63 


78 


113 


Local 99% winter design temperature: dl^'F or greater 


6 


























8 


























10 


























15 


NA 























20 


NA 


NA 


123 


190 


249 


184 








30 


NA 


NA 


NA 


334 


398 


393 


334 





50 


NA 


NA 


NA 


NA 


NA 


714 


707 


579 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1,600 


Local 99% winter design temperature: 27°F to 36°F 


6 








68 


116 


156 


180 


212 


266 


8 








82 


127 


167 


187 


214 


263 


10 





51 


97 


141 


183 


210 


225 


265 


15 


NA 


111 


142 


183 


233 


253 


274 


305 


20 


NA 


NA 


187 


230 


284 


307 


330 


362 


30 


NA 


NA 


• NA 


330 


319 


419 


445 


485 


50 


NA 


NA 


NA 


NA 


NA 


672 


705 


763 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1,554 


Local 99% winter design temperature: 17°F to 26°F 


6 





55 


99 


141 


182 


215 


259 


349 


8 


52 


74 


111 


154 


197 


226 


264 


352 


10 


NA 


90 


125 


169 


214 


245 


278 


358 


15 


NA 


NA 


167 


212 


263 


296 


331 


398 


20 


NA 


NA 


212 


258 


316 


352 


387 


457 


30 


NA 


NA 


NA 


362 


429 


470 


507 


581 


50 


NA 


NA 


NA 


NA 


NA 


723 


766 


862 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1,669 


Local 99% winter design temperature: 5°F to 16°F 


6 


NA 


78 


121 


166 


214 


252 


301 


416 


8 


NA 


94 


135 


182 


230 


269 


312 


423 


10 


NA 


111 


149 


198 


250 


289 


331 


430 


15 


NA 


NA 


193 


247 


305 


346 


393 


485 


20 


NA 


NA 


NA 


293 


360 


408 


450 


547 


30 


NA 


NA 


NA 


377 


450 


531 


580 


682 


50 


NA 


NA 


NA 


NA 


NA 


797 


853 


972 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


1,833 


Local 99%) winter design temperature: -lO'^F to 4°F 


6 


NA 


NA 


145 


196 


249 


296 


349 


484 


8 


NA 


NA 


159 


213 


269 


320 


371 


494 


10 


NA 


NA 


175 


231 


292 


339 


397 


513 


15 


NA 


NA 


NA 


283 


351 


404 


457 


586 


20 


NA 


NA 


NA 


333 


408 


468 


528 


650 


30 


NA 


NA 


NA 


' NA 


NA 


603 


667 


805 


50 


NA 


NA 


NA 


NA 


NA 


NA 


955 


1,003 


100 


NA 


NA 


NA 


NA 


NA 


NA 


NA 


NA 






Local 99%) winter design temperature: -11°F or lower 












Not recommended for any vent configurations 









For SI units, 1 in. = 25.4 mm, 1 in.^ - 645 mm^, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW. 

Note: See Figure 5-13 for a map showing local 99 percent winter design temperatures in the United States. 



122 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



PART II 



This is originally from NFPA 54, which contains additional 
references from the UPC. 



Sizing of Venting Systems Serving Appliances Equipped with 
Draft Hoods, Category I Appliances, and Appliances Listed 
for Use with Type B Vents 



G.1 Examples Using Single Appliance Venting Tables. 
See Figure G.1 (a) through Figure G.1(n). 









Ventcap-MT 


Z3_ 

i 


- 


TypeB 
double-wall -^ 






gas vent 


f 


i 


h 
f. 


', 


' 




:. 1 -^ 








\ 

D 












^ 











Table 5-8 is used when sizing Type B double-wall 
gas vent connected directly to the appliance. 

Note: The appliance can be eKher Category I draft- 
hood-equipped or fan-assisted type. 

FIGURE G.1 (a) TYPE B DOUBLE-WALL VENT SYSTEM SERVING 
A SINGLE APPLIANCE WITH A TYPE B DOUBLE-WALL VENT 



■nie-lined masonry - 
chimney 




Type B double-wall 
g^ vent used as -h 
connector 



Table 5-10 Is used when sizing a Type 8 double-wall gas 
vent connector attached to a tile-lined masonry chimney 

Notes: 

^. A\s the equivalent cross-sectional area of the tile liner. 
2. The appliance can be either Category I draft-^ood- 
equlpped or fan-assisted type. 

FIGURE G.1 (c) VENT SYSTEM SERVING A SINGLE APPLIANCE 

WITH A MASONRY CHIMNEY AND A TYPE B DOUBLE-WALL 

VENT CONNECTOR. 



Vent 

T^reB 
double-wait - 
gas vent 



SIngle-vyall — »• 
wnt ojnnector 







1 




J 




Tlie-dned masonry -^- 
chimney 








h — ^— 


H 


t 


i 




\ 








SIngle-wal! — >- 
vent connector 


\ 










A 


^ 


f 




£ 










i 








1 





Table 5-9 is used when sizing a single-wall metal vent 
connector attached to a Type B double-wall gas vent. 

Note: The appliance can be either Category I drafl- 
hood-equipped or fan-assisted type. 

FIGURE G.1 (b) TYPE B DOUBLE-WALL VENT SYSTEM 

SERVING A SINGLE APPLIANCE WITH A SINGLE-WALL 

METAL VENT CONNECTOR. 



Table 5-11 is used when sizing a single-wall vent 
connector attached to a tile-lined masonry chimney. 

Notes; 

^. A'ls the equivalent cross-sectional area of the tile liner. , 
2. The appliance can be either Category I draft-hood- 
equipped or fan-assisted type. 

FIGURE G.1 (d) VENT SYSTEM SERVING A SINGLE APPLIANCE 

USING A MASONRY CHIMNEY AND A SINGLE-WALL METAL 

VENT CONNECTOR. 



2010 CALIFORNIA PLUMBING CODE 



123 



WATER HEATERS 



]-#— Vent cap 




"Vent cap 



-Type B dout>le-wali 
common vent 



V > t ^ Connector 
I — M rise R 



Single-wall vent 
connectors 



Asbestos cement Type B or single-wall metal vent 
serving a single draft-hood-equtpped appliance. 
(See Table 5-12) 

FIGURE G.1(e) ASBESTOS CEMENTTYPE B OR SINGLE-WALL 
METAL VENT SYSTEM SERVING A SINGLE DRAFT-HOOD- 
EQUIPPED APPLIANCE 



Table 5-15 is used when sizing single-wall vent 
connectors attached to a Type B double-wail 
common vent. 

Note: Each appliance can be either Category I draft- 
hood-equipped or fan-assisted type. 

FIGURE G.1(g) VENT SYSTEM SERVING TWO OR MORE 

APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND 

SINGLE-WALL METAL VENT CONNECTORS. 



Vent cap 






^ 




















-^— Tlle-llned masonry 




Types 




chimney 




double-wall _, 


A 


, 




gas vent 






u used as 1 
" connectors . | 












\ .-i-l 


















tT 




■ 


— 


J 


i 






D 




t*^ 


Connector 




\ 











l^ 


riseff 


f 












< 


ff — 


' 
















L. 









Table 5-14 is used when sizing Type B double-wall 
gas vent connectors attached to a Type B double- 
wall common vent. 

Note: Each appliance can be either Category I draft- 
hood-equipped or fan-assisted type. 

FIGURE G.1(f) VENT SYSTEM SERVING TWO OR MORE 

APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND TYPE B 

DOUBLE-WALL VENT CONNECTORS 



Table 5-16 is used when sizing Type B double-wall vent 
connectors attached to a tile-lined masonry chimney. 

Notes: 

1. A is the equivalent cross-sectional area of the tile liner. 

2. Each appliance can be either Category I draft-hood- 
equipped or fan-assisted type. 

RGURE G.1(h) MASONRY CHIMNEY SERVING TWO OR 

MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT 

CONNECTORS. 



124 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



•Tife-fined masonry 
chimney 





Table 5-17 is used when sizing single- wall metal vent 
connectors attached to a tile-lined masonry chimney. 

Notes: 

1 . ^ Is the equivaient cross-sectional area of the tile liner. 

2. Each appliance can be either Category t draft - 
hood-equipped or fan-assisted type. 

FIGURE G.1(i) MASONRY CHIMNEY SERVING TWO OR MORE 
APPLIANCES WITH SINGLE-WALL VENT CONNECTORS. 



Example: Manifolded common vent connector Lm can 
be no greater than 1 8 times the common vent connector 
manifold inside diameter; that is, a 4 in. (100 mm) inside 
diameter common vent connector manifold should not 
exceed 72 in. (1800 mm) in length. 

Note: This Is an illustration of a typical manifolded vent 
connector. Different appliance, vent connector, or 
common vent types are possible. 

FIGURE G.1(k) USE OF MANIFOLDED COMMON 
VENT CONNECTOR. 



rTTTH— Vent cap 



CIIIp-*-Vent cap 





Asbestos cement Type B or single-wail metal pipe vent 
serving two or more draft-hood-equipped appliances. 
($06 Table $-18} 

FIGURE G.ia) ASBESTOS CEMENTTYPE B OR SINGLE-WALL 
METAL VENT SYSTEM SERVING TWO OR MORE DRAFT- 
HOOD-EQUIPPED APPLIANCES. 



Example: Offset common vent 

Note: This is an illustration of a typical offset vent. 
Different appliance, vent connector, or vent types are 



FIGURE G.1(l) USE OF OFFSET COMMON VENT. 



2010 CALIFORNIA PLUMBING CODE 



125 



WATER HEATERS 



G.1.1 Example 1: Single Draft-Hood-Equipped Appli- 
ance. An installer has a 120,000-Btu/h input appliance with 
a five (5) inch diameter draft hood outlet that needs to be 
vented into a ten (10) foot high Type B vent system. What 
size vent should be used assuming (1) a five (5) foot lateral 
single-wall metal vent connector is used with two (2) 90 de- 
gree elbows or (2) a five (5) foot lateral single-wall metal vent 
connector is used with three (3) 90 degree elbows in the vent 
system? (See Figure G.1.1). 

Solution 

Table 5-9 should be used to solve this problem because sin- 
gle-wall metal vent connectors are being used with a Type B 
vent, as follows: 

(1) Read down the first column in Table 5-9 until the row 
associated with a ten (10) foot height and five (5) foot 
lateral is found. Read across this row until a vent capac- 
ity exceeding 120,000 Btu/h is located in the shaded 
columns labeled NAT Max for draft-hood-equipped ap- 
pliances. In this case, a five (5) inch diameter vent has a 
capacity of 122,000 Btu/h and can be used for this ap- 
plication. 

If three (3) 90 degree elbows are used in the vent system, 
the maximum vent capacity listed in the tables must be 
reduced by 10 percent (See NFPA 54:13.1.3). This im- 
plies that the five (5) inch diameter vent has an adjusted 
capacity of only 1 10,000 Btu/h. In this case, the vent sys- 
tem must be increased to six (6) inches in diameter. See 
the following calculations: 



(2) 



Vent connector Tee 




Tee same size as 
segment above 



Common vent size 

based on all inputs * 
entering ttiis segment 
and available tomi height 



Total Input - 



XX 



Rise 



1^^ 



Available total 
height W equals 
rise plus distance 
between tees 



Tee same 
^ size as 
*^ segment 

above 



Btu/hr 
Input 



Increase 
vent 1 

connector T 
size if I 

necessary Other Inputs 
from below 



Vent connector size 
depends on: 

• Input 

• Rise 

• Available total height H 

• Table 5-14 connectors 



Connmon vent size 
depends on: 

• Combined inputs 

• Available total height H 

• Table 6-14 common vent 



FIGURE G.1(m) MULTISTORY GAS VENT DESIGN PROCEDURE 
FOR EACH SEGMENT OF SYSTEM 



122,000 X 0.90 = 110,000 for five (5) inch vent 

From Table 5-10, select six (6) inch vent. 

186,000x0.90=167,000 

This figure is exceeding the required 120,000. 
Therefore, use a six (6) inch vent and connector where 
three (3) elbows are used. 

G.1.2. Example 2: Single Fan-Assisted Appliance. An in- 
staller has an 80,000 Btu/h input fan-assisted appliance that 
must be installed using ten (10) feet of lateral connector at- 
tached to a thirty (30) foot high Type B vent. Two (2) 90 de- 
gree elbows are needed for the installation. Can a single-wall 
metal vent connector be used for this application? See Figure 
G.1.2. 

Solution 

Table 5-9 refers to the use of single-wall metal vent connec- 
tors with Type B vent. In the first column find the row associ- 
ated with a thirty (30) foot height and a ten (10) foot lateral. 
Read across this row, looking at the FAN Min and FAN Max 
columns, to fmd that a three (3) inch diameter single-wall metal 
vent connector is not recommended. Moving to the next larger 



Use individual vent for top-floor 
appliance if connector 
requirement for rise or total 
height cannot be met 

X- 



Listed cap 



Use vent 
connector 
table 



Available total 
tieight for top- 
floor appliance 



1 



T(^-floor— *- 
appliance 



Use available totaU 
height for top-floor 
appliance and 
combined Input of 
all appliances on 
common vent 



:zz Third interconnection tee* 



Available total 
height for thinj- 
ftoor appliance 



Use vent 
connector 
table 



J"[RiseI 

"A 



Third-floor-^ 
appliance 



^ 



Available total 
height for second- 
floor appliance 



Use vent 
connector 
table 



^ 



Available total height 
for tiiird-ftoor appliance 
and combined input of 
three ^pli^wes 
'{if top-floor E^pltance 
is not connected, 
measure total 
height to vent top) 

^ S econd Intem^nnectlon 
tee* 

Use available total 
^ height for.second-fioor 
appliance and combined 
heat input of tvw) 
appliances 

First interconnection tee* 



n: 



Second-floor 
appliance -^ 



J 



Tee wiai cap qjtional 



Design vent connector for 
ftrst-fioor appliance as an 
individual vent of this total 
height for input of first- 
floor appliance 



First-floor — ^ 
appliance 



* Each interconnection tee is same size as 
segment of common vent directly above 



FIGURE G.1(n) PRINCIPLES OF DESIGN OF MULTISTORY 

VENTS USING VENT CONNECTOR AND COMMON VENT 

DESIGN TABLES. 



126 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



size single-wall connector (four (4) inch), we find that a four (4) 
inch diameter single- wall metal connector has a recommended 
maximum vent capacity of 144,000 Btu/h. The 80,000 Btu/h 
fan-assisted appliance is outside this range, so the conclusion 
is that a single- wall metal connector could be used to vent the 
appliance. Table 5-9 shows the acceptable range of vent ca- 
pacities for a four (4) inch vent with five (5) feet of lateral to 
be between 72,000 Btu/h and 157,000 Btu/h. 

If the appliance cannot be moved closer to the vertical 
vent, then a Type B vent could be used as the connector ma- 
terial. In this case, Table 5-8 shows that, for a thirty (30) foot 
high vent with ten (10) feet of lateral, the acceptable range of 
vent capacities for a four (4) inch diameter vent attached to a 
fan-assisted appliance is between 37,000 Btu/h and 150,000 
Btu/h. 

G.1.3. Example 3: Interpolating Between Table Values. An 

installer has an 80,000 Btu/h input appliance with a four (4) 
inch diameter draft hood outlet that needs to be vented into a 
twelve (12) foot high Type B vent. The vent connector has a 
5 -foot lateral length and is also Type B vent. Can this appli- 
ance be vented using a four (4) inch diameter vent? 

Solution 

Table 5-8 is used in the case of an all Type B Vent system. 
However, since there is no entry in Table 5-8 for a height of 
twelve (12) feet, interpolation must be used. Read down the 
four (4) inch diameter NAT Max column to the row associated 
with a ten (10) foot height and five (5) foot lateral to find the 
capacity value of 77,000 Btu/h. Read further down to the fif- 
teen (15) foot height, five (5) foot lateral row to fmd the ca- 
pacity value of 87,000 Btu/h. The difference between the 
fifteen (15) foot height capacity value and the ten (10) foot 
height capacity value is 10,000 Btu/h. The capacity for a vent 
system with a twelve (12) foot height is equal to the capacity 
for a ten (10) foot height plus two-fifths (%) of the difference 
between the ten (10) foot and fifteen (15) foot height values, 
or 77,000 4- 2/5 X 10,000 = 81,000 Btu/h. Therefore, a four (4) 
inch diameter vent can be used in the installation. 

G.2 Examples Using Common Venting Tables. 

G.2.1 Example 4: Common Venting Two Draft-Hood- 
Equipped Appliances. A 35,000-Btu/h water heater is to be 
common vented with a 150,000 Btu/h furnace, using a com- 
mon vent with a total height of thirty (30) feet. The connec- 
tor rise is two (2) feet for the water heater with a horizontal 
length of four (4) feet. The connector rise for the furnace is 
three (3) feet with a horizontal length of eight (8) feet. Assume 
single-wall metal connectors will be used with Type B vent. 
What size connectors and combined vent should be used in 
this installation? 

See Figure G.2.1. 



TypeB 
double-waU 
gas vent 



Elbow 




Draft hood- 
equipped appliance 
120,0(K}-Btu/hr input 



Fbr SI units, 1 ft = 0.305 m. 

FIGURE G.1.1 SINGLE DRAFT HOOD-EQUIPPED APPLIANCE 
- EXAMPLE 1 



TypeB 
double-wall 
gas vent 



-10 ft lateral 




30 ft 



o 



"T — 

Vent connector 



Fan-assisted appliance 
80,000-Btu/hr Input 



For SI units, 1 ft = 0.305 m. 
FIGURE G.1 .2 SINGLE FAN-ASSISTED APPLIANCE - EXAMPLE 2 



r— 3 



30 ft 



ji i Combined capacity 

'JSi 35,000 + 150.000^ 

185.000 Btu/hr 

i— Type B double- 
watt gas vent 

Single-wall 
connectors 




Draft hood- 
equipped 
water heater 
35,000 Btu/hr 
Input 



Draft hood- 
equipped furnace 
150,000 Btu/hr 

input 



FIGURE G.2.1 COMMON VENTING TWO DRAFT HOOD-EQUIPPED 
APPLIANCES - EXAMPLE 4 



2010 CALIFORNIA PLUMBING CODE 



127 



WATER HEATERS 



Solution 

Table 5-15 should be used to size single-wall metal vent 
connectors attached to Type B vertical vents. In the vent con- 
nector capacity portion of Table 5-15, find the row associated 
with a thirty (30) foot vent height. For a two (2) foot rise on 
the vent connector for the water heater, read the shaded 
columns for draft-hood-equipped appliances to find that a 
three (3) inch diameter vent connector has a capacity of 
37,000 Btu/h. Therefore, a three (3) inch single- wall metal 
vent connector can be used with the water heater. For a draft- 
hood-equipped furnace with a three (3) foot rise, read across 
the appropriate row to find that a five (5) inch diameter vent 
connector has a maximum capacity of 120,000 Btu/h (which 
is too small for the furnace), and a six (6) inch diameter vent 
connector has a maximum vent capacity of 172,000 Btu/h. 
Therefore, a six (6) inch diameter vent connector should be 
used with the 150,000 Btu/h furnace. Since both vent con- 
nector horizontal lengths are less than the maximum lengths 
listed in Table 5-8, the table values can be used without ad- 
justments. 

In the common vent capacity portion of Table 5-15, find 
the row associated with a thirty (30) foot vent height and read 
over to the NAT + NAT portion of the six (6) inch diameter 
column to find a maximum combined capacity of 257,000 
Btu/h. Since the two (2) appliances total only 185,000 Btu/h, 
a six (6) inch common vent can be used. 

G.2.2 Example 5(a): Common Venting a Draft-Hood- 
Equipped Water Heater witii a Fan- Assisted Furnace into 
a Type B Vent. In this case, a 35,000-Btu/h input draft-hood- 
equipped water heater with a four (4) inch diameter draft hood 
outlet, two (2) feet of connector rise, and four (4) feet of hor- 
izontal length is to be common vented with a 100,000 Btu/h 
fan-assisted ftimace with a four (4) inch diameter flue collar, 
three (3) feet of connector rise, and six (6) feet of horizontal 
length. The common vent consists of a thirty (30) foot height 
of Type B vent. What are the recommended vent diameters for 
each connector and the common vent? The installer would like 
to use a single-wall metal vent connector. See Figure G.2.2. 

Solution (See Table 5-15) 

Water Heater Vent Connector Diameter Since the water 
heater vent connector horizontal length of four (4) feet is less 
than the maximum value listed in Table 5-15, the venting 
table values can be used without adjustment. Using the Vent 
Connector Capacity portion of Table 5-15, read down the 
Total Vent Height (H) column to thirty (30) feet and read 
across the two (2) feet Connector Rise (R) row to the first 
Btu/h rating in the NAT Max column that is equal to or ex- 
ceeding the water heater input rating. The table shows that a 
three (3) inch vent connector has a maximum input rating of 
37,000 Btu/h. Although this rating is exceeding the water 
heater input rating, a three (3) inch vent connector is prohib- 
ited by Section 5 1 1 . 1 . 1 (5). A four (4) inch vent connector has 
a maximum input rating of 67,000 Btu/h and is equal to the 
draft hood outlet diameter. A four (4) inch vent connector is 



Combined capacity 
35,000 + 100,000 = 
135,000 Btu/hr 



n 



Type B 
double-wall 
gas vent 30 ft 




For SI units, 1000 Btu/hr = 0.293 kW, 1 ft = 0.305 m. 

FIGURE G.2.2 COMMON VENTING A DRAFT HOOD-EQUIPPED 
WATER HEATER WITH A FAN-ASSISTED FURNACE INTO A 
TYPE B DOUBLE-WALL COMMON VENT - EXAMPLE 5(a). 



TABLE G.2.3 

MASONRY CHIMNEY LINER DIMENSIONS WITH CIRCULAR 

EQUIVALENTS 



NOMINAL 

LINER SIZE 

(inch) 


INSIDE DIMEN- 
SIONS OF 
LINER 
(inch) 


INSIDE DIAMETER OR 
EQUIVALENT DIAME- 
TER 
(inch) 


EQUIVALENT 
AREA 
(inch2) 


4x8 


iVi X 6V2 


4.0 


12.2 






5.0 


19.6 






6.0 


28.3 






7.0 


38.3 


8x8 


6^4 X 6Va 


7.4 


42.7 






8.0 


50.3 


8x12 


eVii^W/i 


9.0 


63.6 






10.0 


78.5 


12x12 


9Va X 9Va 


10.4 


83.3 






11.0 


95.0 


12x16 


9'/2xl3y2 


11.8 


107.5 






12.0 


113.0 






14.0 


153.9 


16x16 


131/4x131/4 


14.5 


162.9 






15.0 


176.7 


16x20 


13x17 


16.2 


206.1 






18.0 


254.4 


20x20 


16y4x 16^/4 


18.2 


260.2 






20.0 


314.1 


20x24 


161/2X20/2 


20.1 


314.2 






22.0 


380.1 


24x24 


20/4 X 20/4 


22.1 


380.1 






24.0 


452.3 


24x28 


20/4 X 24/4 


24.1 


456.2 


28x28 


24/4 X 24/4 


26.4 


543.3 






27.0 


572.5 


30x30 


25/2x25/2 


27.9 


607.0 


30x36 


25/2x31/2 


30.9 


749.9 






33.0 


855.3 


36x36 


31/2X31/2 


34.4 


929.4 






36.0 


1017.9 



For SI units, 1 in. = 25.4 mm, 1 in.'^ = 645 mm^. 

Note: When liner sizes differ dimensionally from those shown in this table, 
equivalent diameters can be determined from published tables for square 
and rectangular ducts of equivalent carrying capacity or by other engi- 
neering methods. 



128 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



selected. Since the water heater is equipped with a draft hood, 
there are no minimum input rating restrictions. 

Furnace Vent Connector Diameter Using the Vent Con- 
nector Capacity portion of Table 5-15, read down the Total 
Vent Height (H) column to thirty (30) feet and across the three 
(3) foot Connector Rise (R) row. Since the furnace has a fan- 
assisted combustion system, fmd the first FAN Max column 
with a Btu/h rating exceeding the furnace input rating. The 
four (4) inch vent connector has a maximum input rating of 
1 19,000 Btu/h and a minimum input rating of 85,000 Btu/h. 

The 100,000-Btu/h furnace in this example falls within 
this range, so a four (4) inch connector is adequate. Since the 
furnace vent connector horizontal length of six (6) feet is less 
than the maximum value listed in Table 5-8, the venting table 
values can be used without adjustment. If the ftimace had an 
input rating of 80,000 Btu/h, then a Type B vent connector 
would be needed in order to meet the minimum capacity limit 
(See Table 5-14). 

Common Vent Diameter The total input to the common 
vent is 135,000 Btu/h. Using the Common Vent Capacity por- 
tion of Table 5-15, read down the Vent Height (H) column to 
thirty (30) feet and across this row to fmd the smallest vent di- 
ameter in the FAN + NAT column that has a Btu/h rating 
equal to or exceeding 135,000 Btu/h. The four (4) inch com- 
mon vent has a capacity of 132,000 Btu/h and the five (5) 
inch common vent has a capacity of 202,000 Btu/h. There- 
fore, the five (5) inch common vent should be used in this ex- 
ample. 

Summary: In this example, the installer can use a four (4) inch 
diameter, single-wall metal vent connector for the water 
heater and a four (4) inch diameter, single-wall metal vent 
connector for the furnace. The common vent should be a five 
(5) inch diameter Type B vent. 

G.2.3 Example 5(b): Common Venting into an Interior Ma- 
sonry Chimney. In this case, the water heater and fan-assisted 
furnace of Example 5(a) are to be common-vented into a clay- 
tile-lined masonry chimney with a thirty (30) foot height. The 
chimney is not exposed to the outdoors below the roof line. 
The internal dimensions of the clay tile liner are nominally 
eight (8) inches x twelve (12) inches. Assuming the same vent 
connector heights, laterals, and materials found in example 
5(a), what are the recommended vent connector diameters, 
and is this an acceptable installation? 

Solution 

Table 5-17 is used to size common venting installations in- 
volving single- wall connectors into masonry chimneys. 

Water Heater Vent Connector Diameter Using Table 5- 
17, Vent Connector Capacity, read down the Vent Height (H) 
column to thirty (30) feet, and read across the two (2) foot 
Connector Rise (R) row to the first Btu/h rating in the NAT 
Max column that is equal to or exceeding the water heater 
input rating. The table shows that a three (3) inch vent con- 



nector has a maximum input of only 31,000 Btu/h, while a 
four (4) inch vent connector has a maximum input of 57,000 
Btu/h. A four (4) inch vent connector must therefore be used. 

Furnace Vent Connector Diameter Using the Vent Con- 
nector Capacity portion of Table 5-17, read down the total 
Vent Height (H) column to thirty (30) feet and across the three 
(3) feet Connector Rise (R) row. Because the furnace has a 
fan-assisted combustion system, find the first FAN Max col- 
umn with a Btu/h rating exceeding the furnace input rating. 
The four (4) inch vent connector has a maximum input rating 
of 127,000 Btu/h and a minimum input rating of 95,000 
Btu/h. The 100,000 Btu/h furnace in this example falls within 
this range, so a four (4) inch connector is adequate. 

Masonry Chimney. From Table G.2.3, the equivalent area 
for a nominal liner size of eight (8) inches x twelve (12) 
inches is sixty-three and six-tenths (63.6) of a square inch. 
Using Table 5-17, Common Vent Capacity, read down the 
FAN + NAT column under the Minimum Internal Area of 
Chimney value of sixty-three (63) to the row for thirty (30) 
foot height to find a capacity value of 739,000 Btu/h. The 
combined input rating of the furnace and water heater, 
135,000 Btu/h, is less than the table value so this is an ac- 
ceptable installation. 

Section 511.1.8 requires the common vent area to not exceed 
seven (7) times the smallest listed appliance categorized vent 
area, flue collar area, or draft hood outlet area. Both appli- 
ances in this installation have four (4) inch diameter outlets. 
From Table G.2.3, the equivalent area for an inside diameter 
of four (4) inches is twelve and two-tenths (12.2) of a square 
inch. Seven (7) times twelve and two-tenths (12,2) equals 
eighty-five and four-tenths (85.4), which is exceeding sixty- 
three and six-tenths (63.6), so this configuration is accept- 
able. 

G.2.4 Example 5(c): Common Venting into an Exterior 
Masonry Chimney. In this case, the water heater and fan-as- 
sisted furnace of Examples 5(a) and 5(b) are to be common- 
vented into an exterior masonry chimney. The chimney 
height, clay-tile-liner dimensions, and vent connector heights 
and laterals are the same as in Example 5(b). This system is 
being installed in Charlotte, North Carolina. Does this exte- 
rior masonry chimney need to be relined? If so, what corru- 
gated metallic liner size is recommended? What vent 
connector diameters are recommended? See Table G.2.3 and 
Figure 5-14. 

Solution 

According to 511.2.17, Type B vent connectors are re- 
quired to be used with exterior masonry chimneys. Use Table 
5-21 and Table 5-22 to size FAN+NAT common venting in- 
stallations involving Type-B double- wall connectors into ex- 
terior masonry chimneys. 

The local 99 percent winter design temperature needed to 
use Table 5-21 and Table 5-22 can be found in the ASHRAE 
Handbook - Fundamentals. For Charlotte, North Carolina, 
this design temperature is 19^F (-7.22°C). 

Chimney Liner Requirement. As in Example 5(b), use the 
sixty-three (63) square inch column of Table 5-21 to the thirty 



2010 CALIFORNIA PLUMBING CODE 



129 



WATER HEATERS 



(30) foot height row to find that the combined appliance max- 
imum input is 747,000 Btu/h. The combined input rating of 
the appliance in this installation, 135,000 Btu/h, is less than 
the maximum value, so this criterion is satisfied. Table 5-22, 
at a 19°F (-7.22°C) design temperature, and at the same vent 
height and internal area used earlier, shows that the minimum 
allowable input rating of a space-heating appliance is 470,000 
Btu/h. The furnace input rating of 100,000 Btu/h is less than 
this minimum value. So this criterion is not satisfied, and an 
alternative venting design needs to be used, such as a Type B 
vent shown in Example 5(a) or a listed chimney liner system 
shown in the rest of the example. 

According to Section 511.2.19, Table 5-9 or Tables 5-14 
or 5-15 are used for sizing corrugated metallic liners in ma- 
sonry chimneys, with the maximum common vent capacities 
reduced by 20 percent. This example will be continued as- 
suming Type B vent connectors. 

Water Heater Vent Connector Diameter Using Table 5- 
14 Connector Capacity, read down the total Vent Height (H) 
column to thirty (30) feet, and read across the two (2) foot 
Connector Rise (R) row to the first Btu/hour rating in the NAT 
Max column that is equal to or exceeding the water heater 
input rating. The table shows that a three (3) inch vent con- 
nector has a maximum capacity of 39,000 Btu/h. Although 
this rating is exceeding the water heater input rating, a three 
(3) inch vent connector is prohibited by Section 511.1.6. A 
four (4) inch vent connector has a maximum input rating of 
70,000 Btu/h and is equal to the draft hood outlet diameter. A 
four (4) inch vent connector is selected. 

Furnace Vent Connector Diameter Using Table 5-14, 
Vent Connector Capacity, read down the total Vent Height (H) 
column to thirty (30) feet, and read across the three (3) foot 
Connector Rise (R) row to the first Btu/h rating in the FAN 
MAX column that is equal to or exceeding the fiimace input 
rating. The 100,000 Btu/h furnace in this example falls within 
this range, so a four (4) inch connector is adequate. 

Chimney Liner Diameter The total input to the common 
vent is 1 35,000 Btu/h. Using the Common Vent Capacity por- 
tion of Table 5-14, read down the total Vent Height (H) col- 
umn to thirty (30) feet and across this row to find the smallest 
vent diameter in the FAN + NAT column that has a Btu/h rat- 
ing exceeding 135,000 Btu/h. The four (4) inch common vent 
has a capacity of 138,000 Btu/h. Reducing the maximum ca- 
pacity by 20 percent (See 13.2.19) results in a maximum ca- 
pacity for a four (4) inch corrugated liner of 110,000 Btu/h, 
less than the total input of 135,000 Btu/h. So a larger liner is 
needed. The five (5) inch common vent capacity listed in 
Table 5-14 is 210,000 Btu/h, and after reducing by 20 percent 
is 168,000 Btu/h. Therefore, a five (5) inch corrugated metal 
liner should be used in this example. 

Single Wall Connectors. Once it has been established that 
relining the chimney is necessary. Type B double-wall vent 
connectors are not specifically required. This example could 
be redone using Table 5-15 for single-wall vent connectors. 
For this case, the vent connector and liner diameters would be 
the same as found for Type B double- wall connectors. 



The following is originally from NFPA 54, National Fuel Gas 
Code, which contains additional reference. 

Example of Combination of Indoor and Outdoor Com- 
bustion and Ventilation Opening Design. 

J.l Example of Combination Indoor and Outdoor Com- 
bustion Air Opening. Determine the required combination 
of indoor and outdoor combustion air opening sizes for the 
following appliance installation example. 

Example Installation: A fan-assisted furnace and a draft- 
hood-equipped water heater with the following inputs are lo- 
cated in a fifteen (15) foot x thirty (30) foot basement with an 
eight (8) foot ceiling. No additional indoor spaces can be used 
to help meet the appliance combustion air needs. 

Fan- Assisted Furnace Input: 100,000 Btu/h 
Draft-Hood-Equipped Water Heater Input: 40,000 Btu/h 

Solution 

(1) Determine the total available room volume: Equipment 
room volume: 

Fifteen (15) feet x thirty (30) feet with an eight (8) foot 
ceiling = thirty-six-hundred (3,600) cubic feet 

(2) Determine the total required volume: The standard method 
to determine combustion air will be used to calculate the 
required volume. 

The combined input for the appliances located in the 
basement is calculated as follows: 

100,000 Btu/h +40,000 Btu/h = 140,000 Btu/h 

The Standard Method requires that the required volume 
be determined based on fifty (50) cubic feet per 1,000 
Btu/hour. 

Using Table A.9. 3.2.1, the required volume for a 140,000 
Btu/h water heater is seven-thousand (7,000) cubic feet. 

Conclusion: Indoor volume is insufficient to supply com- 
bustion air since the total of thirty-six-hundred (3,600) 
cubic feet does not meet the required volume of seven- 
thousand (7,000) cubic feet. Therefore, additional com- 
bustion air must be provided from the outdoors. 

(3) Determine ratio of the available volume to the required 
volume: 



3,600 ft.^ 
7,000 ft.^ 



■ = 0.51 



(4) Determine the reduction factor to be used to reduce the 
fall outdoor air opening size to the minimum required based 
on ratio of indoor spaces: 

1.00 - 0.51 (fi-om Step 3) = 0.49 



130 



2010 CALIFORNIA PLUMBING CODE 



WATER HEATERS 



(5) 



Determine the single outdoor combustion air opening 
size as if combustion air is to come from outdoors. In this 
example, the combustion air opening directly communi- 
cates with the outdoors. 



TABLE A.9.3.2.1 
STANDARD METHOD VOLUME, ALL APPLIANCES 



140,000 Btu/h 
3,000 Btu/in.2 



= 47 in.' 



(6) Determine the minimum outdoor combustion air open- 
ing area: 

Outdoor opening area = 0.49 
(from Step 4) x 47 in.2= 23 in.^ 

Section 507.3 requires the minimum dimension of the air 
opening shall be not less than three (3) inches. 



APPLIANCE INPUT (Btu/h) 


REQUIRED VOLUME (ft.3) 


5000 


250 


10 000 


500 


15 000 


750 


20 000 


1000 


25 000 


1250 


30 000 


1500 


35 000 


1750 


40 000 


2000 


45 000 


2250 


50 000 


2500 


55 000 


2750 


60 000 


3000 


65 000 


3250 


70 000 


3500 


75 000 


3750 


80 000 


4000 


85 000 


4250 


90 000 


4500 


95 000 


4750 


100 000 


5000 


105 000 


5250 


110 000 


5500 


115 000 


5750 


120 000 


6000 


125 000 


6250 


130 000 


6500 


135 000 


6750 


140 000 


7000 


145 000 


7250 


150 000 


7500 


160 000 


8000 


170 000 


8500 


180 000 


9000 


190 000 


9500 


200 000 


10 000 


210 000 


10 500 


220 000 


11000 


230 000 


11500 


240 000 


12 000 


250 000 


12 500 


260 000 


13 000 


270 000 


13 500 


280 000 


14 000 


290 000 


14 500 


300 000 


15 000 



507.4.1 See Figure ,5-8 • 507.4 
507.4.1(2) See Figure 5-11 • 507, 



,1(1) See Figure 5-9 and Figure 5-10 
4.2 See Figure 5-12 



2010 CALIFORNIA PLUMBING CODE 



131 



132 2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 6 -WATER SUPPLY AND DISTRIBUTION 



Adopting Agency 


BSC 


SFM 


HOD 


DBA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


SS 


ss/cc 


1 


2 


3 


4 












Adopt Entire Chapter 




































Adopt Entire Chapter as 
amended (amended sections 
listed below) 


X 




X 


X 






X 


X 


X 


X 


X 


X 






X 






Adopt only those sections 
that are listed below 




X 
























X 






X 


Chapter/Section 


601.1 






X 


X 
























X 




601.2.2 






X 


X 




























601.4 






X 


X 




























601.5 


































X 


601.5.1 


































X 


601.5.2 


































X 


601.5.3 


































X 


601.6 






























X 






601.7 






























X 






601.8 






























X 






601.9 






























X 






603.4.11 






X 


X 




























603 .4. 16, Note 




X 
































604.1 Exc. 1 


















X 


X 


X 


X 












604.1 Exc. 2 


















X 


X 


X 


X 












604.1 Exc. 3 


















X 


X 


X 


X 












604.1 Exc. 4 


















X 


X 


X 


X 












604.1 Exc. 5 


















X 


X 


X 


X 












604.1.1 






X 


X 




























604.10 


X 




X 


X 










X 


X 


X 


X 












604- 1 1 & subsections 














X 


X 


X 


X 












604.13 


X 




X 


X 




























604.13 Exc. 


















X 


X 


X 


X 












604.13.1 


X 




X 


X 




























604.13.1 Exc. 






X 


X 










X 


X 


X 


X 












604.13.2 


X 
























604.13.2 Exc. 


















X 


X 


X 


X 












Table 6-4 


X 




X 


X 






X 


X 












X 


X 






605.8 


















X 


X 


X 


X 












609.9 


















X 


X 


X 


X 












609.10 






t 


t 


















Table 6-5 








X 




























609.11 


















X 


X 




X 












612.0 & subsections 


















X 


X 


X 


X 












Table 6-9 


















X 


X 


X 


X 












613.0 & subsections 


















X 


X 


X 


X 












614.0 


















X 


X 


X 


X 












614.1 


















X 


X 


X 


X 












614.2 


















X 


X 


X 


X 












614.3 


















X 


X 


X 


X 












614.4 


















X 



















The state agency does not adopt sections identified by the following symbol: t 



2010 CALIFORNIA PLUMBING CODE 



133 



134 2010 CALIFORNIA PLUMBING CODE 



CHAPTER 6 
WATER SUPPLY AND DISTRIBUTION 



I 601.0 Hot and Cold Water Required. 

601.1 Except where not deemed necessary for safety or sani- 
tation by the Authority Having Jurisdiction, each plumbing 
fixture shall be provided with an adequate supply of potable 
running water piped thereto in an approved manner, so 
arranged as to flush and keep it in a clean and sanitary condi- 
tion without danger of backflow or cross-connection. Water 
closets and urinals shall be flushed by means of an approved 
flush tank or flushometer valve. 

Exceptions: 

II (1) [HCD h HCD 2, andDWR] Listed fixtures that do not 

require water for their operation and are not connected to 
the water supply. 

(2) [HCD 1 & HCD 2] For limited-density owner-built rural 
dwellings, potable water shall be available to the 
dwelling site, although such water need not be pressur- 
ized. Where water is not piped from a well, spring, cis- 
tern, or other source, there shall be a minimum reserve 
of 50 gallons (189 L) of potable water available. Where 
water delivery is pressurized, piping shall be installed in 
accordance with the provisions of this chapter 

(3) [HCD 1 & HCD 2] Where deemed not necessary for 
safety or sanitation by the Enforcing Agency. 

(4) [HCD 1 & HCD 2] Recycled water or treated graywater 
may be allowed as specified in Chapter 16 Part II of this 
code. 

(5) [D WR] Where a public agency requires a building to use 
recycled water to flush water closets and urinals in ac- 
cordance with California Water Code 13554. 

In occupancies where plumbing fixtures are installed for 
private use, hot water shall be required for bathing, washing, 
laundry, cooking purposes, dishwashing or maintenance. In 
occupancies where plumbing fixtures are installed for public 
use, hot water shall be required for bathing and washing pur- 
poses. This requirement shall not supersede the requirements 
for individual temperature control limitations for public lava- 
tories, bathtubs, whirlpool bathtubs and shower control valves. 

601.2 Identification of a Potable and Non-potable Water 
System. In buildings where potable water and non-potable 
water systems are installed, each system shall be clearly iden- 

I tified in accordance with Sections 601.2.1 through 601.2.4. 

601.2.1 Potable Water. Green background with white 
lettering. 

601.2.2 Color and Information. Each system shall be 
identified with a colored pipe or band and coded with 
paints, wraps and materials compatible with the piping. 

Except as required in Sections 1610.0 and 1617.0, 
non-potable water systems shall have a yellow background 
with black uppercase lettering, with the words "CAU- 
TION: NON-POTABLE WATER, DO NOT DRINK." 
Each non-potable system shall be identified to designate 



the liquid being conveyed, and the direction of normal 
flow shall be clearly shown. The minimum size of the 
letters and length of the color field shall conform to Table 
6-1. [HCD I & HCD 2] An international symbol of a 
glass in a circle with a slash through it shall be provided 
similar to that shown in Figure 6-1 for all non-potable 
water systems. 

The background color and required information 
shall be indicated every twenty (20) feet (6,096 mm) but 
not less than once per room, and shall be visible from the 
floor level. 

TABLE 6-1 
MINIMUM LENGTH OF COLOR FIELD AND SIZE OF LETTERS 



OUTSIDE DIAMETER OF PIPE 
OR COVERING 


MINIMUM LENGTH 
OF COLOR FIELD 


MINIMUM SIZE OF 
LETTERS 


inches 


(mm) 


Inches 


(mm) 


inches 


(mm) 


'AtoVA 


(15 to 32) 


8 


(203) 


'A 


(12.7) 


V/itol 


(40 to 50) 


8 


(203) 


'A 


(19.1) 


VAio6 


(65 to 150) 


12 


(305) 


VA 


(32) 


8 to 10 


(200 to 250) 


24 


(610) 


VA 


(64) 


Over 10 


(Over 250) 


32 


(813) 


VA 


(89) 



601.2.3 Fixtures. Where vacuum breakers or backflow 
preventers are installed with fixtures listed in Table 14-1 , 
identification of the discharge side shall be permitted to be 
omitted. 

601.2.4 Outlets. Each outlet on the non-potable water line 
that is used for special purposes shall be posted with 
black uppercase lettering as follows: "CAUTION: NON- 
POTABLE WATER, DO NOT DRINK." 




FIGURE 6-1 
INTERNATIONAL SYMBOL 



601.3 Faucets and diverters shall be connected to the water 
distribution system so that hot water corresponds to the left 
side of the fittings. 

601.4 [HCD 1 & HCD 2] All sources for drinking water shall 
be maintained in a clean and sanitary condition. Drinking foun- 
tains and portable water dispensers shall not be located in toi- 
let rooms. 

601.5 [C A] Schools of Cosmetology and Cosmetological Es- 
tablishments. 



2010 CALIFORNIA PLUMBING CODE 



135 



WATER SUPPLY AND DISTRIBUTION 



TABLE 6-2 
BACKFLOW PREVENTION DEVICES, ASSEMBLIES AND METHODS 



DEGREE OF HAZARD 


DEVICE, ASSEMBLY, 
OR METHOD^ 


APPLICABLE 
STANDARDS 


POLLUTION 
(LOW HAZARD) 


CONTAMINATION 
(HIGH HAZARD) 


INSTALLATION2 3 






BACK- 
SIPHONAGE 


BACK- 
PRESSURE 


BACK- 
SIPHONAGE 


BACK- 
PRESSURE 




Airgap 


ASMEA112.1.2 


X 




X 




See Table 6-3 in this chapter. 


Air gap fittings for use with 
plumbing fixtures, appli- 
ances and appurtenances 


ASMEA112.1.3 


X 








Air gap fittmg is a device with an internal air 
gap and typical installation includes plumbing 
fixtures, appli-ances and appurtenances. The 
critical level shall not be installed below the 
flood level rim. 


Atmospheric-type vacuum 
breaker (consists of a body, 
checking member and at- 
mospheric port) 


ASSElOOlorCSA 
B 64.1.1 


X 




X 




Upright position. No valve downstream. Mini- 
mum of six (6) inches (152 mm) or listed dis- 
tance above all downstream pipmg and 
flood-level rim of receptor.'*-^ 


Antisiphon fill valve (ball- 
cocks) for gravity water 
closet flush tanks and urinal 
tanks 


ASSE1002orCSA 
B 125.3 


X 




X 




Installation on gravity water closet flush tank 
and urinal tanks with the fill valve installed 
with the critical level not less than 1 inch 
above the opening of the overflow pipe. '^'^ 


Vacuum breaker wall hy- 
drants, hose bibbs, frost re- 
sistant, automatic draining 
type 


ASSE 1019orCSA 
B 64.2.1.1 


X 




X 




Installation includes wall hydrants and hose 
bibbs. Such devices are not for use under con- 
tinuous pressure conditions (means of shut-off 
downstream of device is prohibited). ''-^ 


Backflow preventer for Car- 
bonated Beverage Dis- 
pensers (two independent 
check valves with a vent to 
the atmosphere) 


ASSE 1022 


X 








Installation includes carbonated beverage ma- 
chines or dispensers. These devices operate 
under intermittent or continuous pressure con- 
ditions. 


Spill-Resistant Pressure- 
Type Backflow Prevention 
Assembly (single check 
valve with air inlet vent and 
means of field testmg) 


ASSE 1056 


X 




X 




Upright position. Minimum of six (6) inches 
(152 mm) or listed distance above all down- 
stream piping and flood-level rim of 
receptor.^ 


Double Check Valve Back- 
flow Prevention Assem-bly 
(two independent check 
valves and means of field 
testing) 


ASSE 1015; AWWA 
C510;CSAB64.5or 
CSAB 64.5.1 


X 


X 






Horizontal unless otherwise listed. Requires 
one (1) foot (305 mm) clearance at bottom for 
maintenance. May need platform/ ladder for 
test and repair. Does not discharge water. 


ASSE 1048 


X 


X 






Horizontal unless otherwise hsted. Requires 
one (1) foot (305 mm) clearance at bottom for 
maintenance. May need platform/ ladder for 
test and repair. Does not discharge water. In- 
stallation includes a fu-e protection system and 
is designed to operate under continuous pres- 
sure conditions. 


Pressure Vacuum Breaker 
Backflow Prevention Assem- 
bly (loaded air inlet valve, in- 
ternally loaded check valve 
and means of field testing) 


ASSE 1020 or CSA 
B 64.1.2 


X 




X 




Upright position. May have valves down- 
stream. Minimum of twelve (12) inches (305 
mm) above all downstream piping and flood- 
level rim of receptor. May discharge water. 


Reduced Pressure Principle 
Backflow Prevention As- 
sembly (two independently 
acting loaded check valves, 
a pressure relief valve and 
means of field testing) 


ASSE 1047 


X 


X 


X 


X 


Horizontal unless otherwise hsted. Requires one 
(1) foot (305 mm) minimum clearance at bottom 
for maintenance. May need platform/ladder for 
test and repair. May discharge water. Installation 
includes a fire protection system and is designed 
to operate under continuous pressure conditions. 


ASSE 1013; AWWA 
C511; CSAB 64.4 or 
CSAB 64.4.1 


X 


X 


X 


X 


Horizontal unless otherwise hsted. Requires one 
(1) foot (305 mm) minimum clearance at bot- 
tom for maintenance. May need platform/ladder 
for test and repair. May discharge water. 



See description of devices and assemblies in this chapter. 
^ Installation in pit or vault requires previous approval by the Authority Having Jurisdiction. 
Refer to general and specific requirement for installation. 

Not to be subjected to operating pressure for more than twelve (12) hours in any twenty-four (24) hour period. 
For deck-mounted and equipment-mounted vacuum breaker, see Section 603.4.15. 



136 



2010 CALIFORNIA PLUMBING CODE 



WATER SUPPLY AND DISTRIBUTION 



601.5.1 Hot-and Cold running Water, At least one sink 
with hot-and cold-running water shall be provided in 
each work area or workroom where hairdressing is per- 
formed in each school and establishment. 

601.5.2 Handwashing Facilities, Each school and es- 
tablishment shall provide adequate handwashing facili- 
ties, including hot-and cold-running water, located 
within or adjacent to the toilet room or rooms in accor- 
dance with Table 4-1. 

601.5.3 Drinking Water, Each school and establishment 
shall supply potable drinking water convenient to stu- 
dents, patrons and employees. Approved sanitary drinking 
fountains shall be installed and so regulated that a jet of 
at least 2 inches (51 mm) shall be constantly available. 

601,6 [AGR] Meat and Poultry Processing Plants, Except 
as provided in Section 601.6.4, the water supply shall be 
ample and potable, with adequate pressure and facilities for 
its distribution in the plant, and its protection against con- 
tamination and pollution. 

Note: A water report, issued under the authority of the state 
health agency, certifying to the potability of the water supply, 
shall be obtained by the applicant and furnished to the ad- 
ministrator whenever such report is required by the adminis- 
trator 

601.6.1 A supply of hot water shall be available. 

601.6.2 Hose connections with steam and water-mixing 
valves or hot-water hose connections shall be provided at 
locations throughout the plant. 

601.6.3 The refuse rooms shall be provided with facilities 
for washing refuse cans and other equipment in the rooms. 

601.6.4 Non-potable water is permitted only in those 
parts of official plants where no product is handled or 
prepared, and then only for limited purposes, such as on 
condensers not connected with the potable water supply, 
in vapor lines serving inedible product rendering tanks, 
and in sewer lines for moving heavy solids in the sewage. 



In all cases, non-potable water lines shall be clearly 
identified and shall not be cross connected with the 
potable water supply. 

Exception: Cross connection is permitted if this is nec- 
essary for fire protection and such connection is of a type 
with a break to ensure against accidental contamination, 
and to be approved by local authorities and by the De- 
partment. 

601.6.5 Equipment using potable water shall be so in- 
stalled as to prevent back-siphonage into the potable 
water system. 

601.6.6 All pipelines, reservoirs, tanks, cooling towers, 
and like equipment employed in handling reused water 
shall be constructed and installed so as to facilitate their 
cleaning and inspection. 

601.6.7 Hot water of such temperature as to accomplish 
a thorough cleanup shall be delivered underpressure to 
outlets. 

601,6, 7,1 An ample supply of water at not less than 
180°F (82^ C) shall be available when used for san- 
itizing purposes. 

601.6.8 Pens, alleys, and runways shall have hose con- 
nections for cleanup purposes. 

601,7 [AGR] Collection Centers and Facilities, 

601.7.1 The water supply shall be ample with facilities 
for its distribution. An ample supply of water at not less 
than 180°F (82°C), or other suitable method. 

601. 7.2 The vehicle cleaning and sanitizing area shall be 
provided with adequate line steam, producing a temper- 
ature of at least ISO^'F (82'' C), or other suitable method. 

601. 7.3 Hose connections with steam and water-mixing 
valves of hot-and cold-water hose connections shall be 
provided at locations throughout the building and at un- 
loading and vehicle cleaning slabs. 



TABLE 6-3 
MINIMUM AIRGAPS FOR WATER DISTRIBUTION^ 




FIXTURES 


WHEN NOT AFFECTED BY SIDEWALLS^ 
Inches (mm) 


WHEN AFFECTED BY SIDEWALLS^ 
Inches (mm) 


Effective openings^ not greater than one-half {Vi) 
inch (12.7 mm) in diameter 


1 (25.4) 


\Vi (38) 


Effecti^^e openings^ not greater than three-quar- 
ters QA) inch (19.1 mm) in diameter 


Wi (38) 


2Va (57) 


Effective openings^ not greater than one (1) inch 
(25.4 mm) in diameter 


2 (51) 


3 (76) 


Effective openings^ greater than one (1) inch 
(25.4 mm) in diameter 


Two (2) times 
diameter of effective opening 


Three (3) times 
diameter of effective opening 



Sidewalls, ribs, or similar obstructions do not affect airgaps when spaced from the inside edge of the spout opening a distance exceeding three (3) times the 
diameter of the effective opening for a single wall, or a distance exceeding four (4) times the effective opening for two (2) intersecting walls. 

Vertical walls, ribs, or similar obstructions extending from the water surface to or above the horizontal plane of the spout opening other than specified in 
Note 1 above. The effect of three (3) or more such vertical walls or ribs has not been determined. In such cases, the airgap shall be measured from the top 
of the wall. 

The effective opening shall be the minimum cross-sectional area at the seat of the control valve or the supply pipe or tubing that feeds the device or outlet. 
If two (2) or more lines supply one outlet, the effective opening shall be the sum of the cross-sectional areas of the individual supply lines or the area of the 
single outlet, whichever is smaller. 

Airgaps less than one (1) inch (25.4 mm) shall be approved only as a permanent part of a listed assembly that has been tested under actual backflow con- 
ditions with vacuums of zero (0) to twenty-five (25) inches (635 mm) of mercury. 



2010 CALIFORNIA PLUMBING CODE 



137 



WATER SUPPLY AND DISTRIBUTION 



601.8 [AGR] Renderers. This area shall be provided with live 
steam or other method of sanitizing vehicles. 

601.9 [AGR] Horse Meat and Pet Food Establishments. 

601.9 A The water supply shall be ample, clean, and 
potable, with facilities for its distribution in the plant, 
and its protection against contamination and pollution. 

601.9.1.1 Equipment using potable water shall be 
so installed as to prevent back-siphonage into the 
potable water system. 

601.9.1.2 Non-potable water is permitted only in those 
parts of official plants where no edible product is han- 
dled or prepared, and then only for limited purposes, 
such as on ammonia condensers not connected with 
the potable water supply, in vapor lines serving inedi- 
ble product rendering tanks, in connection with equip- 
ment used for washing and washing inedible products 
preparatory to tanking, and in sewer lines for moving 
heavy solids in sewage. In all cases, non-potable water 
lines shall be clearly identified and shall not be cross 
connected with the potable water supply. 

Exception: Cross connection is permitted if this is 
necessary for fire protection, and such connection is 
of a type with a break to ensure against accidental 
contamination, and is approved by local authorities 
or by the Department. 

601.9.2 All pipelines, reservoirs, tanks, cooling towers, 
and like equipment employed in handling reused water 
shall be constructed and installed so as to facilitate their 
cleaning and inspection. 

601.9.3 Hot water for cleaning rooms and equipment 
shall be delivered underpressure to outlets and shall be 
of such temperature as to accomplish a thorough 
cleanup. 

601.9.3.1 An ample supply of water at not less than 
180°F (82°C) shall be available when used for san- 
itizing purposes. 

601.9.4 Pens, alleys, and runways shall have hose con- 
nections for cleanup purposes. 

602.0 Unlawful Connections. 

602.1 No installation of potable water supply piping or part 
thereof shall be made in such a manner that it will be possi- 
ble for used, unclean, polluted, or contaminated water,, mix- 
tures, or substances to enter any portion of such piping from 
any tank, receptor, equipment, or plumbing fixture by reason 
of back-siphonage, suction, or any other cause, either during 
normal use and operation thereof, or when any such tank, re- 
ceptor, equipment, or plumbing fixture is flooded or subject 
to pressure exceeding the operating pressure in the hot or cold 
water piping. 

602.2 No person shall make a connection or allow one (1) to 
exist between pipes or conduits carrying domestic water sup- 
plied by any public or private water service system, and any 
pipes, conduits, or fixtures containing or carrying water from 



any other source or containing or carrying water that has been 
used for any purpose whatsoever, or any piping carrying 
chemicals, Hquids, gases, or any substances whatsoever, un- 
less there is provided a backflow prevention device approved 
for the potential hazard and maintained in accordance with 
this code. Each point of use shall be separately protected 
when potential cross-contamination of individual units exists. 

602.3 No plumbing fixture, device, or construction shall be 
installed or maintained or shall be connected to any domestic 
water supply when such installation or connection provides a 
possibility of polluting such water supply or cross-connection 
between a distributing system of water for drinking and do- 
mestic purposes and water that becomes contaminated by such 
plumbing fixture, device, or construction unless there is pro- 
vided a backflow prevention device approved for the potential 
hazard. 

602.4 No water piping supplied by any private water supply 
system shall be connected to any other source of supply with- 
out the approval of the Authority Having Jurisdiction, Health 
Department, or other department having jurisdiction. 

603.0 Cross-Connection Control. 

Cross-connection control shall be provided in accordance 
with the provisions of this chapter. 

No person shall install any water-operated equipment or 
mechanism, or use any water-treating chemical or substance, 
if it is found that such equipment, mechanism, chemical, or 
substance causes pollution or contamination of the domestic 
water supply. Such equipment or mechanism shall be per- 
mitted only when equipped with an approved backflow pre- 
vention device or assembly. 

603.1 Approval of Devices or Assemblies. Before any de- 
vice or assembly is installed for the prevention of backflow, 
it shall have first been approved by the Authority Having Ju- 
risdiction. Devices or assemblies shall be tested for con- 
formity with recognized standards or other standards 
acceptable to the Authority Having Jurisdiction. Backflow 
prevention devices and assemblies shall comply with Table 
6-2, except for specific applications and provisions as stated 
in Sections 603.4 through 603.4.22. 

Devices or assembhes installed in a potable water supply 
system for protection against backflow shall be maintained 
in good working condition by the person or persons having 
control of such devices or assemblies. Such devices or as- 
semblies shall be tested at the time of installation, repair, or 
relocation and not less than on an annual schedule thereafter, 
or more often when required by the Authority Having Juris- 
diction. If found to be defective or inoperative, the device or 
assembly shall be repaired or replaced. No device or assem- 
bly shall be removed from use or relocated or other device or 
assembly substituted, without the approval of the Authority 
Having Jurisdiction. 

Testing shall be performed by a certified backflow as- 
sembly tester. 



138 



2010 CALIFORNIA PLUMBING CODE 



WATER SUPPLY AND DISTRIBUTION 



603.2 Backflow Prevention Devices, Assemblies, and 
Methods. 

603.2.1 Airgap. The minimum airgap to afford backflow 
protection shall be in accordance with Table 6-3. 

603.2.2 Atmospheric Vacuum Breaker (AVB). An at- 
mospheric vacuum breaker consists of a body, a check- 

I ing member, and an atmospheric port. 

603.2.3 Hose Connection Backflow Preventer. A hose 
connection backflow preventer consists of two (2) inde- 
pendent check valves with an independent atmospheric 
vent between and a means of field testing and draining. 

603.2.4 Double Check Valve Backflow Prevention As- 
sembly (DC). A double check valve backflow preven- 
tion assembly consists of two (2) independently acting 
internally loaded check valves, four (4) properly located 
test cocks, and two (2) isolation valves. 

603.2.5 Pressure Vacuum Breaker Backflow Preven- 
tion Assembly (PVB). A pressure vacuum breaker back- 
flow prevention assembly consists of a loaded air inlet 
valve, an internally loaded check valve, two (2) properly 
located test cocks, and two (2) isolation valves. This de- 
vice shall be installed indoors only if provisions for 
spillage are provided. 

603.2.6 Pressure Vacuum Breaker Spill-Resistant- 
Type Backflow Prevention Assembly (SVB). A pres- 
sure-type vacuum breaker backflow prevention assembly 
consists of one (1) check valve force-loaded closed and 
an air inlet vent valve force-loaded open to atmosphere, 
positioned downstream of the check valve, and located 
between and including two (2) tightly closing shutoff 
valves and test cocks. 

603.2.7 Reduced-Pressure Principle Backflow Pre- 
vention Assembly (RP). A reduced-pressure principle 
backflow prevention assembly consists of two (2) inde- 
pendently acting internally loaded check valves, a dif- 
ferential pressure-reHef valve, four (4) properly located 
test cocks, and two (2) isolation valves. 

603.3 General Requirements. 

603.3.1 Assemblies shall conform to listed standards and 
be acceptable to the Authority Having Jurisdiction, with 
jurisdiction over the selection and installation of back- 
flow prevention assemblies. 

603.3.2 Where more than one (1) backflow prevention 
valve is installed on a single premise, and the valves are 
installed in one (1) location, each separate valve shall be 
permanently identified by the permittee in a manner sat- 
isfactory to the Authority Having Jurisdiction. 

603.3.3 The premise owner or responsible person shall 
have the backflow prevention assembly tested by a cer- 
tified backflow assembly tester at the time of installation, 
repair, or relocation and not less than on an annual sched- 
ule thereafter, or more often when required by the Au- 
thority Having Jurisdiction. The periodic testing shall be 
performed in accordance with the procedures referenced 
in Table 14-1 by a tester qualified in accordance with 
those standards. 



603.3.4 Access and clearance shall be provided for the re- 
quired testing, maintenance, and repau*. Access and clear- 
ance shall require a minimum of one (1) foot (305 mm) 
between the lowest portion of the assembly and grade, 
floor, or platform. Installations elevated exceeding five 
(5) feet (1 ,524 mm) above the floor or grade shall be pro- 
vided with a permanent platform capable of supporting a 
tester or maintenance person, 

603.3.5 Direct connections between potable water piping 
and sewer-connected wastes shall not be permitted to 
exist under any condition with or without backflow pro- 
tection. Where potable water is discharged to the drainage 
system, it shall be by means of an approved airgap of two 
(2) pipe diameters of the supply inlet, but in no case shall 
the gap be less than one (1) inch (25.4 mm). Connection 
shall be permitted to be made to the inlet side of a trap 
provided that an approved vacuum breaker is installed not 
less than six (6) inches (152 mm), or the distance accord- 
ing to the device's listing, above the flood-level rim of 
such trapped fixture, so that at no time will any such de- 
vice be subjected to any back-pressure. 

603.3.6 Backflow preventers for hot water exceeding 
llO^F (43.3°C) shaU be a type designed to operate at 
temperatures exceeding 110°F (43.3°C) without render- 
ing any portion of the assembly inoperative. 

603.3.7 Fixtures, appliances, or appurtenances with in- 
tegral backflow preventers or integral airgaps manufac- 
tured as a unit shall be installed in accordance with their 
listing requirements and the manufacturer's instructions. 

603.3.8 In cold climate areas, backflow assemblies and 
devices shall be protected from freezing with an outdoor 
enclosure or by a method acceptable to the Authority 
Having Jurisdiction. 

603.3.9 Drain lines serving backflow devices or assemblies 
shall be sized in accordance with the discharge rates of the 
manufacturer's flow charts of such devices or assemblies. 

603.3.10 Design and Installation of Plumbing Fixtures. 

Plumbing frxtures shall be installed such that fixture fittings, 
complying with the backflow prevention requirements of 
ASME A112.18.1/CSA B125.1, Standard for Plumbing 
Supply Fittings, do not have these requirements compro- 
mised by the designated fixture fitting mounting surface. 

603.4 Specific Requirements. 

603.4.1 Water closet and urinal flushometer valves shall 
be equipped with an atmospheric vacuum breaker. The 
vacuum breaker shall be installed on the discharge side 
of the flushometer valve with the critical level not less 
than six (6) inches (152 mm), or the distance according 
to its listing, above the overflow rim of a water closet 
bowl or the highest part of a urinal. 

603.4.2 Water closet and urinal tanks shall be equipped 
with a ballcock. The ballcock shall be installed with the 
critical level not less than one (1) inch (25.4 mm) above 
the full opening of the overflow pipe. In cases where the 
ballcock has no hush tube, the bottom of the water sup- 
ply inlet shall be installed one (1) inch (25.4 mm) above 
the full opening of the overflow pipe. 



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603.4.3 Water closet flushometer tanks shall be protected 
against backflow by an approved backflow prevention 
assembly, device, or method. 

603.4.4 Heat Exchangers. 

603.4.4.1 Heat exchangers used for heat transfer, heat 
recovery, or solar heating shall protect the potable 
water system from being contaminated by the heat- 
transfer medium. Single-wall heat exchangers used 
in indirect- fired water heaters shall meet the require- 
ments of Section 506.4.2. Double-wall heat ex- 
changers shall separate the potable water from the 
heat-transfer medium by providing a space between 
the two (2) walls that are vented to the atmosphere. 

603.4.5 Water supply inlets to tanks, vats, sumps, swim- 
ming pools, and other receptors shall be protected by one 
of the following means: 

( 1 ) An approved airgap . 

(2) A listed vacuum breaker installed on the discharge 
side of the last valve with the critical level not less 
than six (6) inches (152 mm) or in accordance with 
its listing. 

(3) A backflow preventer suitable for the contamination 
or pollution, installed in accordance with the re- 
quirements for that type of device or assembly as set 
forth in this chapter. 

603.4.6 Protection from Lawn Sprinklers and Irriga- 
tion Systems. 

603.4.6.1 Potable water supplies to systems having 
no pumps or connections for pumping equipment, 
and no chemical injection or provisions for chemical 
injection, shall be protected from backflow by one of 
the following devices: 

(1) Atmospheric vacuum breaker 

(2) Pressure vacuum breaker 

(3) Spill-resistant pressure vacuum breaker 

(4) Reduced-pressure backflow preventer 

603.4.6.2 Where sprinkler and irrigation systems 
have pumps, connections for pumping equipment, 
or auxiliary air tanks, or are otherwise capable of 
creating back-pressure, the potable water supply 
shall be protected by the following type of device if 
the backflow device is located upstream from the 
source of back-pressure: 

(1) Reduced-pressure backflow preventer 

603.4.6.3 Where systems have a backflow device in- 
stalled downstream from a potable water supply 
pump or a potable water supply pump connection, 
the device shall be one of the following: 

(1) Atmospheric vacuum breaker 

(2) Pressure vacuum breaker 

(3) Spill-resistant pressure vacuum breaker 

(4) Reduced-pressure backflow preventer 



603.4.6.4 Where systems include a chemical injec- 
tor or any provisions for chemical injection, the 
potable water supply shall be protected by the fol- 
lowing: 

(1) Reduced-pressure backflow preventer 

603.4.7 Potable water outlets with hose attachments, 
other than water heater drains, boiler drains, and clothes 
washer connections, shall be protected by a nonremov- 
able hose-bibb-type backflow preventer, a nonremovable 
hose bibb-type vacuum breaker, or by an atmospheric 
vacuum breaker installed not less than six (6) inches (152 
mm) above the highest point of usage located on the dis- 
charge side of the last valve. In climates where freezing 
temperatures occur, a listed self-draining frost-proof hose 
bibb with an integral backflow preventer or vacuum 
breaker shall be used. 

603.4.8 Water-cooled compressors, degreasers, or any 
other water-cooled equipment shall be protected by a 
backflow preventer installed in accordance with the re- 
quirements of this chapter. 

Note: Water-cooled equipment that produces back-pres- 
sure shall be equipped with the appropriate protection. 

603.4.9 Water inlets to water-suppUed aspirators shall be 
equipped with a vacuum breaker installed in accordance 
with its listing requirements and this chapter. The dis- 
charge shall drain through an airgap. When the tailpiece 
of a fixture to receive the discharge of an aspirator is 
used, the airgap shall be located above the flood-level 
rim of the fixture. 

603.4.10 Potable water makeup connections to steam or 
hot water boilers shall be provided with a listed backflow 
protection assembly. 

603.4.11 Non-potable Water Piping. In cases where it 
is impractical to correct individual cross-connections on 
the domestic waterline, the line supplying such outlets 
shall be considered a non-potable water line. No drinking 
or domestic water outlets shall be connected to the non- 
potable waterline. Whenever possible, portions of the 
non-potable waterline shall be exposed, and exposed por- 
tions shall be properly identified in a manner satisfactory 
to the Authority Having Jurisdiction. Each outlet on the 
non-potable waterline that is permitted to be used for 
drinking or domestic purposes shall be posted: "CAU- 
TION: NON-POTABLE WATER, DO NOT DRINK." 
[HCD 1 & HCD 2] An international symbol of a glass in 
a circle with a slash through it shall be provided similar 
to that shown in Figure 6-1. 

603.4.12 Potable water supply to carbonators shall be pro- 
tected by either an airgap or a vented backfiow preventer 
for carbonated beverage dispensers installed within the 
carbonated beverage dispenser. The carbonated beverage 
dispenser shall bear the label of an approved testing 
agency, certifying and attesting that such equipment has 
been tested and inspected and meets the requirements of 
the approved applicable standard. Carbonated beverage 
dispensers without an approved internal airgap or vented 



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backflow preventer for carbonated beverage dispensers 
and carbonated beverage dispensing systems shall have 
the water supply protected v^ith a vented backflow pre- 
venter for carbonated beverage dispensers. 

603.4.13 Water Treatment Units. Reverse osmosis drink- 
ing water treatment units shall meet the requirements of 
the applicable standards referenced in Table 14-1 . Waste or 
discharge from reverse osmosis or other types of water 
treatment units shall enter the drainage system through an 
airgap. 

603.4.14 Backflow preventers shall not be located in any 
area containing fumes that are toxic, poisonous, or cor- 
rosive. 

603.4.15 Deck-mounted or equipment-mounted vacuum 
breakers shall be installed in accordance with their list- 
ing and the manufacturer's instructions, with the critical 
level not less than one (1) inch (25.4 mm) above the 
flood-level rim. 

603.4.16 Protection from Fire Systems. 

Note: Fire Protection Systems has not been adopted by 
the State Fire Marshal This section cannot be adopted or 
enforced pursuant to California Health and Safety Code 
13114. 7(a), which is being cited for reference. 

California Health and Safety Code 13114.7 

(a) For the purposes ofth is section the following are def- 
initions of class I and class II systems: 

(1) American Water Works Association (A.W.W.A) 
Manual No. M-14 class 1 - Automatic fire sprin- 
kler systems with direct connection from public 
water mains only; no pumps, tanks, or reser- 
voirs; no physical connection from other water 
supplies; no antifreeze or additives of any kind; 
and all sprinkler drains discharging to the at- 
mosphere or other safe outlets. 

(2) American Water Works Association (A.W.W.A) 
Manual No. M-14 class 2 -Automatic fire sprin- 
kler systems which are the same as class 1, ex- 
cept that booster pumps may be installed in the 
connections from the street mains. 

(b) Automatic fire sprinkler systems described in subdi- 
vision (a) shall not required any bacl^ow protection 
equipment at the service connection other than re- 
quired by standards for those systems contained in the 
publication of the National Fire Protection Associa- 
tion entitled 'Installation of Sprinkler Systems'' 
(NFPA Pamphlet No. 13, 1980 edition). 

603.4.17 Special Equipment, Water Supply Protection. 

Vacuum breakers for washer-hose bedpans shall be located 
not less than five (5) feet (1,524 mm) above the floor. Hose 
connections in health care or laboratory areas shall be not 
less than six (6) feet (1,829 mm) above the floor. 

603.4.18 Portable cleaning equipment, dental vacuum 
pumps, and chemical dispensers shall be protected from 
backflow by an airgap, an atmospheric vacuum breaker, 
a spill-resistant vacuum breaker, or a reduced pressure 
principle backflow preventer. 



603.4.19 Combination stop-and- waste valves or cocks 
shall not be installed underground. 

603.4.20 Pure Water Process Systems. The water sup- 
ply to a pure water process system, such as dialysis water 
systems, semiconductor washing systems, and similar 
process piping systems, shall be protected from back- 
pressure and back-siphonage by a reduced-pressure prin- 
ciple backflow preventer. 

603.4.20.1 Dialysis Water Systems. The individual 
connections of the dialysis related equipment to the 
dialysis pure water system shall not require addi- 
tional backflow protection. 

603.4.21 Plumbing Fixture Fittings. Plumbing fixture fit- 
tings with integral backflow protection shall comply with 
ASME A112.18.1/CSAB 125.1, Standard for Plumbing 
Supply Fittings. 

603.4.22 Potable water supply to swimming pools, spas, 
and hot tubs shall be protected by an airgap or a reduced 
pressure principle backflow preventer in accordance with 
the following: 

(1) The unit is equipped with a submerged fill line; or 

(2) The potable water supply is du-ectly connected to the 
unit circulation system. 

604.0 Materials. 

604.1 Pipe, tube, and fittings carrying water used in potable 
water systems intended to supply drinking water shall meet 
the requirements of NSF 61 , Standard for Drinking Water Sys- 
tem Components, as found in Table 14-1. Materials used in 
the water supply system, except valves and similar devices, 
shall be of a like material, except where otherwise approved by 
the Authority Having Jurisdiction. 

Materials for building water piping and building supply 
piping shall be in accordance with the applicable standards I 
referenced in Table 6-4. I 

Exceptions: 

(1) [OSHPD 1,2,3 & 4] Use ofCPVC is not permitted for 
applications under authority of the Office of Statewide 
Health Planning and Development. 

(2) [OSHPD 12,3& 4J Installation and use of PEX tubing 
shall be in accordance with manufacturer s installation 
standards. PEX piping shall not be used for any appli- 
cation that would result in noncompliance with any pro- 
visions of the California Building Standards Code. 

(3) [OSHPD ly2,3& 4] Use of PEX-AL-P EX piping is not 
permitted for applications under the authority of the Of- 
fice of Statewide Health Planning and Development. 

(4) [OSHPD 1,2,3 & 4] When PEX tubing is placed in soil 
and is used in potable water systems intended to supply 
drinking water to fixtures or appliances, the tubing or 
piping shall be sleeved with a material approved for 
potable water use in soil or other material that is imper- 
meable to solvents or petroleum products. 

(5) [OSHPD ly2,3 & 4] PEX tubing shall meet the require- 
ments of NSF P 171 CL-R, ASTMF 876-08, Standard for 
Crosslinked Polyethylene (PEX) Tubing, or an equivalent or 



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TABLE 6-4 
MATERIALS FOR BUILDING SUPPLY AND WATER DISTRIBUTION PIPING AND FITTINGS 



MATERIAL 


BUILDING 
SUPPLY 
PIPE AND 
FITTINGS 


WATER 

DISTRIBUTION 

PIPE AND 

FITTINGS 


REFERENCED 
STANDARD(S) PIPE 


REFERENCED 
STANDARD(S) FITTINGS 


Asbestos-Cement 


X' 




ASTM C 296, AWWA C400 




Brass 


X 


X 


ASTM B 43, ASTM B 135 




Copper 


X 


X 


ASTM B 42, ASTM B 75, ASTM B 88, 
ASTM B 251, ASTM B 302, ASTM B 447 


ASMEB16.15,ASMEB16.18,ASME 
B16.22,ASMEB16.26 


CPVC 


X 


X 


ASTM D 2846, ASTM F 441, ASTM F 442 


ASTM D 2846, ASTM F 437, ASTM F 
438, ASTM F 439, ASTM F 1970 


Ductile-Iron 


X 


X 


AWWAC151 


ASMEB16.4,AWWAC110,AWWAC153 


Galvanized Steel 


X 


X 


ASTM A 53 




Malleable Iron 


X 


X 




ASMEB16.3 


PE 


x^ 




ASTM D 2239, ASTM D 2737, ASTM D 
3035, AWWAC 901, CSAB137.1 


ASTM D 2609, ASTM D 2683, ASTM D 
3261, ASTM F 1055, CSAB137.1 


PE-AL-PE 


X 


X 


ASTM F 1282, CSAB137.9 


ASTM F 1282, ASTM F 1974, CSA B 137.9 


PEX^'^ 


X 


X 


ASTM F 876 , ASTM F 877, CSA B137.5 


ASTM F 877, ASTM F 1 807, ASTM F 
1960, ASTM F 1961, ASTM F 2080, 
ASTMF2159, CSAB137.5 


PEX-AL-PEX^ 


X 


X 


ASTM F 128 1 , ASTM F 2262, CSA 
B137.10 


ASTM F 1281, ASTM F 1974, ASTM F 
2434,CSAB137.10 


PVC 


X' 




ASTM D 1785, ASTM D 2241, AWWA 
C900 


ASTM D 2464, ASTM D 2466, ASTM D 
2467, ASTM F 1970 


Stainless Steel 


X 


X 


ASTM A 269, ASTM A 3 12 





For Building Supply or cold-water applications. 

[BSQ DSA'SS, DSA-SS/CC, and HCDJ The use of P EX- AL-P EX in potable water supply systems is not adopted. 

[BSQ DSA-SSf DSA-SS/CC f HCD, AGRy andDPH] When PEX tubing is placed in soil and is used in potable water systems intended to supply drink- 
ing water to fixtures or appliances, the tubing or piping shall be sleeved with a material approved for potable water use in soil or other material that is 
impermeable to solvents or petroleum products. 

[BSC, DSA-SS, DSA'SS/CC, HCD, AGR, and DPHJ PEX tubing shall meet the requirements ofNSF PI 71 CL-R, ASTMF 876-08 or an equivalent or 
more stringent standard when used in continuously recirculating hot water systems where chlorinated water is supplied to the system and the PEX tub- 
ing is exposed to the hot water 100% of the time. 



more stringent standard when used in continuously recircu- 
lating hot water systems where chlorinated water is supplied 
to the system and the PEX tubing is exposed to the hot water 
100% of the time. 

604.1 J Local Authority to Approve CPVC Pipe Within (d) 

Residential Buildings Under Specified Conditions, 

[HCD 1 & HCD 2] The local responsible building offi- 
cial of any city, county, or city and county, shall author- 
ize by permit the use of CPVC for hot and cold water 
distribution systems within the interior of residential 
buildings provided all of the following conditions are sat- 
isfied: 

(a) Permit Conditions, Any building permit issued pur- 
suant to Section 604.1.1 shall be conditioned on 
compliance with the mitigation measures set forth 

in this section. (e) 

(b) Approved Materials, Only CPVC plumbing mate- 
rial listed as an approved material and installed in 
accordance with this code may be used. 

(c) Installation and Use, Any installation and use of 
CPVC plumbing material pursuant to this section 
shall comply with all applicable requirements of this 



code and Section 1.2 of Appendix I of this code, In- 
stallation Standard for CPVC Solvent Cemented Hot 
and Cold Water Distribution Systems, lAPMO IS 20- 
2006. II 

Certification of Compliance. Prior to issuing a 
building permit pursuant to Section 604. LI, the 
building official shall require as part of the permit- 
ting process that the contractor, or the appropriate 
plumbing subcontractors, provide written certifica- 
tion: (1) that is required in subdivision (e), and (2) 
that he or she will comply with the flushing proce- 
dures and worker safety measures set forth in Sec- 
tion 1.2 of Appendix I of this code. Installation 
Standard for CPVC Solvent Cemented Hot and Cold 
Water Distribution Systems, lAPMO IS 20-2006. II 

Worker Safety, Any contractor applying for a build- 
ing permit that includes the use of CPVC plumbing 
materials authorized pursuant to this section shall 
include in the permit application a signed written 
certification stating that: 

(1) They are aware of the health and safety hazards 
associated with CPVC plumbing installations; 



142 



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WATER SUPPLY AND DISTRIBUTION 



(2) They have included in their Injury and Illness 

Prevention Plan the hazards associated with 
CPVC plumbing pipe installations; and 

(3) The worker safety training elements of their In- 
jury and Illness Prevention Plan meet the De- 
partment of Industrial Relation 's guidelines. 

(f) Findings of Compliance, The building official shall 
not give final permit approval of any CPVC plumbing 
materials installed pursuant to Section 604.1.1 unless 
he or she finds that the material has been installed in 
compliance with the requirements of this code and 
that the installer has complied with the requirements 
in Section 1.2.1 of Appendix I of this code, Installation 
Standards for CPVC Solvent Cemented Hot and Cold 

1 1 Water Distribution Systems, lAPMO IS 20-2006. 

(g) Penalties. Any contractor or subcontractor found to 
have failed to comply with the flushing requirements 
of Section L2.1 of Appendix I of this code or the ven- 
tilation and glove requirements of Section 1.2.2 of Ap- 
pendix I of this code, Installation Standards for CPVC 
Solvent Cemented Hot and Cold Water Distribution 
Systems, lAPMO IS 20-2006 shall be subject to the 
penalties in Health and Safety Code, Division 13, 
Part 1.5, Chapter 6 (Section 17995 et seq.). In addi- 
tion, if during the conduct of any building inspection 
the building official finds that the ventilation and 
glove requirements of Section 1.2.2 of Appendix I of 
this code, ''Special Requirements for CPVC Installa- 
tion within Residential Buildings, " are being violated, 
such building officials shall cite the contractor or sub- 
contractor for that violation. 

604.2 Copper tube for water piping shall have a weight of not 
less than Type L. 

Exception: Type M copper tubing shall be permitted to be used 
for water piping when piping is above ground in, or on, a build- 
ing or underground outside of structures. 

604.3 Hard-drawn copper tubmg for water supply and distri- 
bution in addition to the required incised marking, shall be 
marked in accordance with ASTM B 88 Seamless Copper 
Water Tube as referenced in Table 14-1. The colors shall be: 
Type K, green; Type L, blue; Type M, red. 

604.4 Listed flexible copper water connectors shall be installed 
in readily accessible locations, unless otherwise listed. 

604.5 Cast-iron fittings up to and including two (2) inches (51 
nun) in size, when used in connection with potable water pip- 
ing, shall be galvanized. 

604.6 Malleable iron water fittings shall be galvanized. 

604.7 Piping and tubing that has previously been used for any 
purpose other than for potable water systems shall not be used. 

604.8 Approved plastic materials shall be permitted to be used 
in water service piping, provided that where metal water serv- 
ice piping is used for electrical grounding purposes, replace- 
ment piping therefore shall be of like materials. 



Exception: Where a grounding system acceptable to the Au- 
thority Having Jurisdiction is installed, inspected, and ap- 
proved, metallic pipe shall be permitted to be replaced with 
nonmetallic pipe. Plastic materials for water service piping out- 
side underground shall have a blue insulated copper tracer wire 
or other approved conductor installed adjacent to the piping. 
Access shall be provided to the tracer wire or the tracer wire 
shall terminate above ground at each end of the nonmetallic 
piping. The tracer wire size shall be not less than 1 8 AWG and 
the insulation type shall be suitable for direct burial. 

604.9 Solder shall conform to the requirements of Section 
316.1.3. 

604.10 Water pipe and fittings with a lead content which ex- 
ceeds eight (8) percent shall be prohibited in piping systems 
used to convey potable water. 

Note: On or after January 1, 2010, see Section 116875 of the 
Health and Safety Code for the lead content of pipes, pipe or 
plumbing fittings, or fixtures intended to convey or dispense 
water for human consumption. 

604.11 PEX. Cross-hnked polyethylene (PEX) tubing con- 
forming to ASTM F 877, Standard for Crosslinked Polyethyl- 
ene (PEX) Plastic Hot- and Cold- Water Distribution Systems, 
shall be marked with the appropriate standard designation(s) 
for the fittings specified for use with the tubing. Such marking 
shall not be required for PEX tubing conforming to only ASTM 
F 876, Crosslinked Polyethylene (PEX) Tubing. PEX tubing 
shall be installed in compliance with the provisions of this sec- 
tion. [OSHPD 1,2, 3 4& 4] Installation and use of PEX tubing 
shall be in accordance with manufacturer s standards. PEX 
piping shall not be used for any application that would result 
in noncompliance with any provisions of the California Build- 
ing Standards Code. 

604.11.1 PEX Fittings. Fittings used with PEX tubing 
shall be manufactured to and marked in accordance with 
the standards for the fittings referenced in Table 14-1. 
[OSHPD 1,2, 3 & 4] Installation and use of PEX tubing 
shall be in accordance with manufacturer s standards. 
PEX piping shall not be used for any application that 
would result in noncompliance with any provisions of the 
California Building Standards Code. 

604.11.2 Water Heater Connections. PEX tubing shall 
not be installed within the first eighteen (18) inches (457 
mm) of piping connected to a water heater. 

604.12 Flexible Corrugated Connectors. Flexible corru- 
gated connectors of copper or stainless steel shall be limited 
to the following connector lengths: 

Water Heater Connectors - twenty-four (24) inches 
(610 mm). 

Fixture Connectors - thirty (30) inches (762 mm). 

Washing Machine Connectors - seventy-two (72) 
inches (1,829 mm). 

Dishwasher and Icemaker Connectors - one-hundred 
and twenty (120) inches (3,048 mm). 

604.13 PEX-AL-PEX and PE-AL-PE. Crosslinked poly- 
ethylene-aluminum-crosslinked polyethylene (PEX-AL- 
PEX) and polyethylene-aluminum-polyethylene (PE-AL-PE) 



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composite pipe shall be marked with the applicable standard 
referenced in Table 14-1 for which the piping has been listed 
or approved. PEX-AL-PEX and PE-AL-PE piping shall be 
installed in compUance with the provisions of this section. 

II [HCD 1 & HCD 2, BSC] PEX-AL-PEX is not adopted for use in 
potable water supply and distribution systems. 

Exception: fOSHPD 1,2,3 & 4] Use of PEX-AL-PEX piping is 
not permitted for applications under the authority of the Office 
of Statewide Health Planning and Development. 

604.13.1 PEX-AL-PEX and PE-AL-PE. Fittings used 
with PEX-AL-PEX and PE-AL-PE piping shall be man- 
ufactured to and marked in accordance with the standard 
for the fittings referenced in Table 14-1. 

1 1 [HCD 1 & HCD 2, BSC] PEX-AL-PEX is not adopted for 
use in potable water supply and distribution systems. 

Exception: fOSHPD I 2, 3 & 4] Use of PEX-AL-PEX pip- 
ing is not permitted for applications under the authority of 
the Office of Statewide Health Planning and Development. 

604.13.2 Water Heater Connections. PEX-AL-PEX or 
PE-AL-PE tubing shall not be installed within the first 
eighteen (18) inches (457 mm) of piping connected to a 
water heater. 

II [HCD 1 & HCD 2, BSC] PEX-AL-PEX is not adopted for 
use in potable water supply and distribution systems. 

Exception: fOSHPD 1, 2, 3 & 4] Use of PEX-AL-PEX pip- 
ing is not permitted for applications under the authority of 
the Office of Statewide Health Planning and Development. 

604.14 Water Heater Connectors. Flexible metalhc water 
heater connectors or reinforced flexible water heater connec- 
tors connecting water heating to the piping system shall be in 
compliance with the applicable standards referenced in Table 
14-1. 

605.0 Valves. 

605.1 Valves up to and including two (2) inches (5 1 mm) in size 
shall be brass or other approved material. Sizes exceeding two 
(2) inches (5 1 mm) shall be permitted to have cast-iron or brass 
bodies. Each gate or ball valve shall be a fullway type with 
working parts of non-corrosive material. Valves carrying water 
used in potable water systems intended to supply drinking water 
shall meet the requirements of NSF 61, Standard for Drinking 
Water System Components, as referenced in Table 14-1. 

605.2 A fullway valve controlling outlets shall be installed on 
the discharge side of each water meter and on each unmetered 
water supply. Water piping supplying more than one (1) build- 
ing on any one (1) premises shall be equipped with a separate 
fullway valve to each building, so arranged that the water sup- 
ply can be turned on or off to any individual or separate build- 
ing provided; however, that supply piping to a single-family 
residence and building accessory thereto shall be permitted 
to be controlled on one (1) valve. Such shutoff valves shall be 
accessible at all times. A fullway valve shall be installed on 
the discharge piping from water supply tanks at or near the 



tank. A fullway valve shall be installed on the cold water sup- 
ply pipe to each water heater at or near the water heater. 

605.3 In multidwelling units, one (1) or more shutoff valves 
shall be provided in each dwelling unit so that the water sup- 
ply to any plumbing fixture or group of fixtures in that dwelling 
unit can be shut off without stopping water supply to fixtures 
in other dwelling units. These valves shall be accessible in the 
dwelling unit that they control. 

605.4 Valves used to control two (2) or more openings shall 
be fullway gate valves, ball valves, or other approved valves 
designed and approved for the service intended. 

605.5 A control valve shall be installed immediately ahead of 
each water-supplied appliance and immediately ahead of each 
slip joint or appliance supply. 

Parallel water distribution systems shall provide a control 
valve either immediately ahead of each fixture being supplied 
or installed at the manifold and shall be identified with the 
fixture being supplied. 

605.6 Required shutoff or control valves shall be accessible. 

605.7 A single control valve shall be installed on a water sup- 
ply line ahead of any automatic metering valve that supplies 
a battery of fixtures. 

605.8 fOSHPD 1,2, 3 & 4] Each riser or branch shall be pro- 
vided with an accessible sectionalizing valve in hot-and cold- 
water systems to permit servicing or replacement of piping or 
equipment. Stop valves shall be provided at each fixture. 

606.0 Joints and Connections. 

606.1 Types of Joints. 

606.1.1 Flared Joints. Flared joints for soft copper water 
tubing shall be made with fittings meeting approved stan- 
dards. The tubing shall be reamed to the fiill bore, resized 
to round, and expanded with a proper flaring tool. 

606.1.2 Mechanical Joints, Mechanical joints for cast- 
iron water pipe shall conform to nationally recognized 
standards. 

606.1.3 Mechanically Formed Tee Fittings. Mechani- 
cally extracted collars shall be formed in a continuous 
operation consisting of drilling a pilot hole and drawing 
out the tube surface to form a collar having a height not 
less than three (3) times the thickness of the branch tube 
wall. 

The branch tube shall be notched to conform with 
the inner curve of the run tube and shall have two (2) 
dimple/depth stops to ensure that penetration of the 
branch tube into the collar is of sufficient depth for braz- 
ing and that the branch tube does not obstruct the flow in 
the main line tube. Dimple/depth stops shall be in line 
with the run of the tube. The second dimple shall be one- 
quarter QA) inch (6.4 mm) above the first and shall serve 
as a visual point of inspection. 

Joints shall be brazed in accordance with Section 
316.1.7. Soldered joints shall not be allowed. 



144 



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606.2 Use of Joints. 

606.2.1 Copper Water T\ibe. Joints in copper tubing shall 
be made by the appropriate use of approved fittings prop- 
erly soldered or brazed together as provided in Section 
3 1 6. 1 .3 or 3 1 6. 1.7 or by means of approved flared or com- 
pression fittings in Sections 606. 1.1 or 316. 1.5. Solder and 
soldering flxox shall conform to the requirements of Section 
316.L3. Mechanically formed tee fittings shall be made 
by brazing only and shall conform to the requirements of 
Sections 316.1.7 and 606.1.3. 

606.2.2 Plastic Fittings. Female PVC screwed fittings 
for water piping shall be used with plastic male fittings 
and plastic male threads only. 

606.2.3 Slip Joints. In water piping, slip joints shall be 
permitted to be used only on the exposed fixture supply 
may be used only on the exposed fixture supply. 

607.0 Gravity Supply Tanks. 

Gravity tanks for potable water shall be tightly covered, and 
have not less than a sixteen (16) square inch (10,323 mm^) 
overflow screened with copper screen having not less than 
fourteen (14) nor exceeding eighteen (18) openings per linear 
inch (25.4 mm). 

608.0 Water Pressure, Pressure Regulators, Pressure Re- 
lief Valves, and Vacuum Relief Valves. 

608.1 Inadequate Water Pressure. Whenever the water 
pressure in the main or other source of supply will not provide 
a residual water pressure of not less than fifteen (15) pounds 
per square inch (103 kPa), after allowing for friction and other 
pressure losses, a tank and a pump or other means that will 
provide said fifteen (15) pound (103 kPa) pressure shall be 
installed. Whenever fixtures and/or fixture fittings are in- 
stalled that require residual pressure exceeding fifteen (15) 
pounds per square inch (103 kPa), that minimum residual 
pressure shall be provided. 

608.2 Excessive Water Pressure. Where static water pressure 
in the water supply piping is exceeding eighty (80) pounds per 
square inch (552 kPa), an approved-type pressure regulator 
preceded by an adequate strainer shall be installed and the 
static pressure reduced to eighty (80) pounds per square inch 
(552 kPa) or less. Pressure regulator(s) equal to or exceeding 
one and one-half (iVi) inches (38 mm) shall not require a 
strainer. Such regulator(s) shall control the pressure to all 
water outlets in the building unless otherwise approved by the 
Authority Having Jurisdiction. Each such regulator and 
strainer shall be accessibly located above ground or in a vault 
equipped with a properly sized and sloped bore-sighted drain 
to daylight, shall be protected from freezing, and shall have 
the strainer readily accessible for cleaning without removing 
the regulator or strainer body or disconnecting the supply pip- 
ing. Pipe size determinations shall be based on 80 percent of 
the reduced pressure when using Table 6-6. An approved ex- 
pansion tank shall be installed in the cold water distribution 



piping downstream of each such regulator to prevent exces- 
sive pressure from developing due to thermal expansion and to 
maintain the pressure setting of the regulator. The expansion 
tank shall be properly sized and installed in accordance with 
the manufacturer's instructions and hsting. Systems designed 
by registered engineers shall be permitted to use approved 
pressure relief valves in lieu of exptansion tanks provided such 
relief valves have a maximum pressure rehef setting of one- 
hundred (100) pounds per square inch (689 kPa) or less. 

608.3 Any water system provided with a check valve, back- 
flow preventer, or any other normally closed device that pre- 
vents dissipation of building pressure back into the water main 
shall be provided with an approved, listed, and adequately sized 
expansion tank or other approved device having a similar func- 
tion to control thermal expansion. Such expansion tank or other 
approved device shall be installed on the building side of the 
check valve, backflow preventer, or other device and shall be 
sized and installed in accordance with the manufacturer's rec- 
ommendation. 

Any water system containing storage water heating equip- 
ment shall be provided with an approved, listed, adequately 
sized combination pressure and temperature relief valve, ex- 
cept for listed nonstorage instantaneous heaters having an in- 
side diameter of not more than three (3) inches (80 mm). Each 
such approved combination temperature and pressure relief 
valve shall be installed on the water-heating device in an ap- 
proved location based on its listing requirements and the man- 
ufacturer's instructions. Each such combination temperature 
and pressure relief valve shall be provided with a drain as re- 
quired in Section 608.5. 

608.4 Each pressure relief valve shall be an approved automatic 
type with drain, and each such reUef valve shall be set at a pres- 
sure of not more than one-hundred and fifty (150) pounds per 
square inch (1,034 kPa). No shutofif valve shall be installed be- 
tween the relief valve and the system or in the drain line. 

608.5 Relief valves located inside a building shall be provided 
with a drain, not smaller than the relief valve outlet, of galva- 
nized steel, hard-drawn copper piping and fittings, CPVC or 
listed relief valve drain tube with fittings that will not reduce 
the internal bore of the pipe or tubing (straight lengths as op- 
posed to coils) and shall extend from the valve to the outside of 
the building, with the end of the pipe not more than two (2) 
feet (610 mm) nor less than six (6) inches (152 mm) above 
ground or the flood level of the area receiving the discharge 
and pointing downward. Such drains shall be permitted to ter- 
minate at other approved locations. Relief valve drains shall 
not terminate in a building's crawl space. No part of such drain 
pipe shall be trapped or subject to freezing. The terminal end of 
the drain pipe shall not be threaded. 

608.6 Any water-heating device connected to a separate storage 
tank and having valves between said heater and tank shall be 
provided with an approved water pressure relief valve. 

608.7 Vacuum Relief Valves. Where a hot- water storage tank 
or an indirect water heater is located at an elevation above the 
fixture outlets in the hot- water system, a vacuum relief valve 
shall be installed on the storage tank or heater. 



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609.0 Installation, Testing, Unions, and Location. 

609.1 Installation. Water piping shall be adequately supported 
in accordance with Section 3 14.0. Burred ends shall be reamed 
to the full bore of the pipe or tube. Changes in direction shall 
be made by the appropriate use of fittings, except that changes 
in direction in copper tubing may be made with bends, pro- 
vided that such bends are made with bending equipment that 
does not deform or create a loss in the cross-sectional area of 
the tubing. Changes in direction are allowed with flexible pipe 
and tubing without fittings in accordance with the manufac- 
turer's installation instructions. Provisions shall be made for 
expansion in hot-water piping. Piping, equipment, appurte- 
nances, and devices shall be installed in a workmanlike man- 
ner in conformity with the provisions and intent of the code. 
Water service yard piping shall be not less than twelve (12) 
inches (305 mm) below the average local frost depth. The 
cover shall be not less than twelve (12) inches (305 mm) 
below finish grade. 

609.2 Water pipes shall not be run or laid in the same trench 
as building sewer or drainage piping constructed of clay or 
materials that are not approved for use within a building un- 
less both of the following conditions are met: 

609.2.1 The bottom of the water pipe, at all points, shall 
be not less than twelve (12) inches (305 mm) above the 
top of the sewer or drain line. 

609.2.2 The water pipe shall be placed on a solid shelf 
excavated at one (1) side of the common trench with a 
clear horizontal distance of not less than twelve (12) 
inches (305 mm) from the sewer or drain line. 

Water pipes crossing sewer or drainage piping con- 
structed of clay or materials that are not approved for use 
within a building shall be laid not less than twelve (12) 
inches (305 mm) above the sewer or drain pipe. 

609.3 Water piping installed within a building and in or under 
a concrete floor slab resting on the ground shall be installed 
in accordance with the following requirements: 

609.3.1 Ferrous piping shall have a protective coating of 
an approved type, machine applied and conforming to 
recognized standards. Field wrapping shall provide 
equivalent protection and shall be restricted to those short 
sections and fittings necessarily stripped for threading. 
Zinc coating (galvanizing) shall not be deemed adequate 
protection for piping or fittings. Approved nonferrous 
piping shall not be required to be wrapped. 

609.3.2 Copper tubing shall be installed without joints 
where possible. Where joints are permitted, they shall be 
brazed, and fittings shall be wrought copper. 

Note: For the purpose of this section, "within the build- 
ing" shall mean within the fixed limits of the building 
foundation. 

609.4 Testing. Upon completion of a section or of the entke 
hot and cold water supply system, it shall be tested and 
proved tight under a water pressure not less than the working 



pressure under which it is to be used. The water used for tests 
shall be obtained from a potable source of supply. Except for 
plastic piping, a fifty (50) Ib./in.^ (345 kPa) air pressure shall 
be permitted to be substituted for the water test. In either 
method of test, the piping shall withstand the test without 
leaking for a period of not less than fifteen (15) minutes. 

609.5 Unions. Unions shall be installed in the water supply pip- 
ing not more than twelve (12) inches (305 mm) of regulating 
equipment, water heating, conditioning tanks, and similar equip- 
ment that requires service by removal or replacement in a man- 
ner that will facilitate its ready removal. 

609.6 Location. Except as provided in Section 609,7, no 
building supply shall be located in any lot other than the lot 
that is the site of the building or structure served by such 
building supply. 

609.7 Nothing contained in this code shall be construed to 
prohibit the use of all or part of an abutting lot to: 

609.7.1 Provide access to connect a building supply to 
an available public water service when proper cause and 
legal easement not in violation of other requirements 
have been first established to the satisfaction of the Au- 
thority Having Jurisdiction. 

609.7.2 Provide additional space for a building supply 
when proper cause, transfer of ownership, or change of 
boundary not in violation of other requirements have been 
first established to the satisfaction of the Authority Hav- 
ing Jurisdiction. The instrument recording such action 
shall constitute an agreement with the Authority Having 
Jurisdiction, which shall clearly state and show that the 
areas so joined or used shall be maintained as a unit dur- 
ing the time they are so used. Such an agreement shall be 
recorded in the office of the County Recorder as a part of 
the conditions of ownership of said properties, and shall 
be binding on heirs, successors, and assigns to such prop- 
erties. A copy of the instrument recording such proceed- 
ings shall be filed with the Authority Having Jurisdiction. 

609.8 Low-Pressure Cutoff Required on Booster Pumps 
for Water Distribution Systems. When a booster pump (ex- 
cluding a fire pump) is connected to a water service or un- 
derground water pipe, a low-pressure cutoff switch on the 
inlet side of the pump shall be installed not more than five 
(5) feet (1,524 mm) of the inlet. The cutoff switch shall be set 
for not less than ten (10) psi (69 kPa). A pressure gauge shall 
be installed between the shutoff valve and the pump. 

609.9 Disinfection of Potable Water System. New or re- 
paired potable water systems shall be disinfected prior to use 
whenever required by the Authority Having Jurisdiction. 
[OSHPD Iy2f3& 4] Prior to utilization of newly constructed 
or altered potable water piping systems, all affected potable 
water piping shall be disinfected using procedures prescribed 
in California Plumbing Code Sections 609.9.1 through 
609.9.4. The method to be followed shall be that prescribed 
by the Health Authority or, in case no method is prescribed by 
it, the following: 



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609.9.1 The pipe system shall be flushed with clean, 
potable water until only potable water appears at the points 
of outlet. 

609.9.2 The system or parts thereof shall be filled with a 
water-chlorine solution containing not less than fifty (50) 
parts per million of chlorine, and the system or part thereof 
shall be valved-off and allowed to stand for twenty- four 
(24) hours; or, the system or part thereof shall be filled 
with a water-chlorine solution containing not less than 
two-hundred (200) parts per million of chlorine and al- 
lowed to stand for three (3) hours. 

609.9.3 Following the allowed standing time, the system 
shall be flushed with clean, potable water until the chlo- 
rine residual in the water coming from the system does 
not exceed the chlorine residual in the flushing water. 

609.9.4 The procedure shall be repeated if it is shown by 
bacteriological examination made by an approved agency 
that contamination persists in the system. 

609.10 Water Hammer. [Not adopted by HCD] Building 
water supply systems where quick-acting valves are installed 

I shall be provided with water hammer arrester(s) to absorb 
high pressures resulting from the quick closing of these 

I valves. Water hammer arrestors shall be approved mechani- 
cal devices in accordance with the applicable standard(s) ref- 
erenced in Table 14-1 and shall be installed as close as 
possible to quick-acting valves. 

609.10.1 Mechanical Devices. When listed mechanical 
devices are used, the manufacturer's specifications as to 
location and method of installation shall be followed, 

609.11 [OSHPD 1,2 Si 4] Refer to Title 24, Part 2 of the 
California Building Code for seismic anchorage and bracing 
requirements and accommodations for building displace- 
ments. 

610.0 Size of Potable Water Piping. 

610.1 The size of each water meter and each potable water 
supply pipe from the meter or other source of supply to the 
fixture supply branches, risers, fixtures, connections, outlets, 
or other uses shall be based on the total demand and shall be 
determined according to the methods and procedures outlined 
in this section. Water piping systems shall be designed to en- 
sure that the maximum velocities allowed by the code and the 
applicable standard are not exceeded. 

610.2 Whenever a water filter, water softener, backflow pre- 
vention device or similar device is installed in any water sup- 
ply line, the pressure loss through such devices shall be 
included in the pressure loss calculations of the system, and 
the water supply pipe and meter shall be adequately sized to 
provide for any such pressure loss. 

No water filter, water softener, backflow prevention de- 
vice, or similar device regulated by this code shall be installed 
in any potable water supply piping when the installation of such 
device produces an excessive pressure drop in any such water 
supply piping, hi the absence of specific pressure drop infor- 
mation, the diameter of the inlet or outlet of any such device or 



its connecting piping shall be not less than the diameter of such 
water distribution piping to the fixtures served by the device. 

Such devices shall be of a type approved by the Author- 
ity Having Jurisdiction and shall be tested for flow rating and 
pressure loss by an approved laboratory or recognized testing 
agency to standards consistent with the intent of this chapter. 

610.3 The quantity of water required to be suppHed to every 
plumbing fixture shall be represented by fixture units, as 
shown in Table 6-5. Equivalent fixture values shown in Table 
6-5 include both hot and cold water demand. 

610.4 Systems within the range of Table 6-6 shall be permit- 
ted to be sized from that table or by the method set forth in 
Section 610.5. 

Listed parallel water distribution systems shall be in- 
stalled in accordance with their listing, but at no time shall 
any portion of the system exceed the maximum velocities al- 
lowed by the code. 

610.5 Except as provided in Section 610.4, the size of each 
water piping system shall be determined in accordance with 
the procedure set forth in Appendix A. For alternate methods 
of sizing water supply systems, see Appendix L. 

610.6 Except where the type of pipe used and the water char- 
acteristics are such that no decrease in capacity due to length 
of service (age of system) is expected, friction-loss data shall 
be obtained from the "Fairly Rough" or "Rough" charts in 
Appendix A of this code. Friction or pressure losses in water 
meter, valve, and fittings shall be obtained from the same 
sources. Pressure losses through water-treating equipment, 
backflow prevention devices, or other flow-restricting devices 
shall be computed as required by Section 610.2. 

610.7 On any proposed water piping installation sized using 
Table 6-6, the following conditions shall be determined: 

( 1 ) Total number of fixture units as determined from Table 6- 
5, Equivalent Fixture Units, for the fixtures to be in- 
stalled. 

(2) Developed length of supply pipe from meter to most re- 
mote outlet. 

(3) Difference in elevation between the meter or other source 
of supply and the highest fixture or outlet. 

(4) Pressure in the street main or other source of supply at 
the locality where the installation is to be made. 

(5) In localities where there is a fluctuation of pressure in 
the main throughout the day, the water piping system 
shall be designed on the basis of the minimum pressure 
available. 

610.8 Size of Meter and Building Supply Pipe Using Table 
6-6. The size of the meter and the building supply pipe shall 
be determined as follows: 

(1) Determine the available pressure at the water meter or 
other source of supply. 

(2) Subtract one-half Q/i) pound per square inch pressure 
(3.4 kPa) for each foot (305 mm) of difference in eleva- 
tion between such source of supply and the highest water 
supply outlet in the building or on the premises. 



2010 CALIFORNIA PLUMBING CODE 



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(3) Use the "pressure range" group within which this pres- 
sure will fall using Table 6-6. 

(4) Select the "length" column that is equal to or longer than 
the required length. 

(5) Follow down the column to a fixture unit value equal to 
or exceeding the total number of fixture units required 
by the installation. 

(6) Having located the proper fixture unit value for the re- 
quired length, sizes of meter and building supply pipe as 
found in the two (2) left-hand columns shall be applied. 

No building supply pipe shall be less than three-quarters 
(Va) of an inch (20 mm) in diameter. 

610.9 Size of Branches. When Table 6-6 is used, the mini- 
mum size of each branch shall be determined by the number 
of fixture units to be served by that branch, the total devel- 
oped length of the system, and the meter and street service 
size as per Section 610.8. No branch piping is required to be 
larger in size than that required by Table 6-6 for the building 
supply pipe. 

610.10 Sizing for Flushometer Valves. When using Table 6- 
6 to size water supply systems serving flushometer valves, 
the number of flushometer fixture units assigned to every sec- 
tion of pipe, whether branch or main, shall be determined by 
the number and category of flushometer valves served by that 
section of pipe, in accordance with Table 6-7. Piping supply- 
ing a flushometer valve shall be not less in size than the valve 
inlet. 

When using Table 6-7 to size water piping, care must be 
exercised to assign flushometer fixture units based on the 
number and category of fixtures served. 





LAV LAV UR UR WC WC 
1 1 1 1 1 1 




F E D C B A 


LAV LAV UR UR WC WC 
1 1 1 1 i 1 




G H 1 J K L 






-^ M 




LAV UR WC LAV UR WC 
1 1 1 1 1 1 




S R Q P N 


T^ 





SIZING METHOD 

EXAMPLE USING TABLE 6-7 

PUBLIC USE FIXTURES 



In the example below, fixture units assigned to each section 
of pipe are computed as follows: Note: Each capital letter 
refers to the section of pipe above it, unless otherwise shown. 



A: 1WC = 40F.U. 

B: 2WC = 70F.U. 

C: 2 WC (70) + 1 UR (20) = 90 RU. 

D: 2WC(70) + 2UR(35)=105F.U. 

E: 2WC(70) + 2UR(35)+1LAV(1) = 

F: 2 WC (70) + 2 UR (35) + 2 LAV (2) = 

G: 1 LAV - 1 F.U. 

H: 2 LAV = 2 F.U. 

I: 2 LAV (2) + 1 UR (20) - 22 F.U. 

J: 2 LAV (2)+ 2 UR (35) = 37 F.U. 

K: 2LAV(2) + 2UR(35)+1 WC(40) = 

L: 2 LAV (2) + 2 UR (35) + 2 WC (70) = 

M: 4WC(105) + 4UR(53) + 4LAV(4) 

N: 1WC-40F.U. 

O: 1 WC (40) + 1 UR (20) - 60 F.U. 

P: 1 WC (40) + 1 UR (20) + 1 LAV (1) - 

Q: 2WC(70) + 1UR(20)+1LAV(1) = 

R: 2WC(70) + 2UR(35) + 1LAV(1) = 

S: 2 WC (70) + 2 UR (35) + 2 LAV (2) - 

T: 6 WC (125) + 6 UR (63) + 6 LAV (6) 



106 RU. 

107 RU. 



77 RU. 
107 RU. 
= 162RU. 



61 RU. 
91 RU. 

106 RU. 

107 RU. 
-194 F.U. 



610.11 Sizing Systems for Flushometer Tanks. The size of 
branches and mains serving flushometer tanks shall be con- 
sistent with the sizing procedures for flush tank water closets. 

610.12 Sizing for Velocity. Water piping systems shall not 
exceed the maximum velocities listed in this section or Ap- 
pendix A. 

610.12.1 Copper Tube Systems, Maximum velocities in 
copper and copper alloy tube and fitting systems shall 
not exceed eight (8) feet per second (^s) (2.4 mps) in 
cold water and five (5) fps in hot water (1 .5 mps). 

610.12.2 Tubing Systems Using Copper Alloy Fittings. 

Maximum velocities through copper alloy fittings in tub- 
ing other than copper shall not exceed eight (8) feet per 
second (fys) (2.4 mps) in cold water and five (5) Q)s in 
hot water (1.5 mps). 

610.13 Exceptions. The provisions of this section relative to 
size of water piping shall not apply to the following: 

(1) Water supply piping systems designed in accordance 
with recognized engineering procedures acceptable to 
the Authority Having Jurisdiction. 

(2) Alteration of or minor additions to existing installations, 
provided the Authority Having Jurisdiction finds that there 
will be an adequate supply of water to operate all fixtures. 

(3) Replacement of existing fixtures or appliances. 

(4) Piping that is part of fixture equipment. 

(5) Unusual conditions where, in the judgment of the Au- 
thority Having Jurisdiction, an adequate supply of water 
is provided to operate fixtures and equipment. 

(6) Non-potable waterlines as defmed in Sections 601 .2.2 and 
601.2.4. 



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Inch mm 

Vi 15 

Va 20 
I 25 


TABLE 6-5 
WATER SUPPLY FIXTURE UNITS (WSFU) AND MINIMUM FIXTURE BRANCH PIPE SIZES^ 




APPLIANCES, APPURTENANCES OR FIXTURES^ 


MINIMUM 

FIXTURE BRANCH 

PIPESI/I-^'^ 


PRIVATE 


PUBLIC 


ASSEMBLY^ 


Bathtub or Combination Bath/Shower (fill) 


Vi 


4.0 


4.0 


B 


yV' Bathtub Fill Valve 


Va 


10.0 


10.0 




Bidet 


Vi 


1.0 






Clothes washer 


Vi 


4.0 


4.0 




Dental Unit, cuspidor 


Vi 




1.0 




Dishwasher, domestic 


Vi 


1.5 


1.5 




Drinking Fountain or Water Cooler 


Vi 


0.5 


0.5 


0.75 


Hose Bibb 


Vi 


2.5 


2.5 




Hose Bibb, each additional^ 


'/2 


1.0 


1.0 




Lavatory 


'/2 


1.0 


1.0 


1.0 


Lawn Sprinkler, each head^ 




1.0 


1.0 




Mobile Home, each (minimum)^ 




12.0 






Sinks 










Bar 


Vi 


1.0 


2.0 




Clinic Faucet 


Vi 




3.0 




Clinic Flushometer Valve with or without faucet 


1 




8.0 




Kitchen, domestic 


Vi 


1.5 


1.5 




Laundry 


Vi 


1.5 


1.5 




Service or Mop Basin 


V2 


1.5 


3.0 




Washup, each set of faucets 


Vi 




2.0 




Shower, per head 


Vi 


2.0 


2.0 




Urinal, 1.0 GPF Flushometer Valve 


Va 


See Footnote'^ 




Urinal, greater than 1 .0 GPF Flushometer Valve 


Va 


See Footnote"^ 




Urinal, flush tank 


Vi 


2.0 


2.0 


3.0 


Wash Fountain, circular spray 


Va 




4.0 




Water Closet, 1.6 GPF Gravity Tank 


Vi 


2.5 


2.5 


3.5 


Water Closet, 1.6 GPF Flushometer Tank 


Vi 


2.5 


2.5 


3.5 


Water Closet, 1.6 GPF Flushometer Valve 


1 


See Footnote^ 




Water Closet, greater than 1.6 GPF Gravity Tank 


V2 


3.0 


5.5 


7.0 


Water Closet, greater than 1.6 GPF Flushometer Valve 


1 


See Footnote^ 





Notes: 

' Size of the cold branch pipe, or both the hot and cold branch pipes. 

^ Appliances, Appurtenances or Fixtures not included in this Table may be sized by reference to fixtures having a similar flow rate and frequency of use. 

^ The listed fixture unit values represent their load on their cold water service. The separate cold water and hot water fixture unit value for fixtures having 
both hot and cold water connections may each be taken as three-quarter QA) of the listed total value of the fixture. 

"* The listed minimum supply branch pipe sizes for individual fixtures are the nominal (LD.) pipe size. 

^ For fixtures or supply connections likely to impose continuous flow demands, determine the required flow in gallons per minute (GPM), and add it sepa- 
rately to the demand (in GPM) for the distribution system or portions thereof 

^ Assembly [Public Use (See Table 4- 1 )] . 

^ When sizing flushometer systems, see Section 610.10. 

^ Reduced fixture unit loading for additional hose bibbs is to be used only when sizing total building demand and for pipe sizing when more than one (1) 
hose bibb is supplied by a segment of water-distributing pipe. The fixture branch to each hose bibb shall be sized on the basis of two and one-half (2.5) 
fixture units. 

^ [HCD 2] For water supply fixture unit values related to mobilehome parks in all parts of the State of California, see California Code of Regulations, Title 
25, Division 1, Chapter 2, Article 5, Section 1278. For water supply fixture unit values related to special occupancy parks in all parts of the State of Cali- 
fornia, see California Code of Regulations, Title 25, Division 1, Chapter 2.2, Article 5, Section 227 S. 



2010 CALIFORNIA PLUMBING CODE 



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TABLE 6-6 
FIXTURE UNITTABLE FOR DETERMINING WATER PIPE AND Mb 1 bR SIZES 








Inch mm 

'A 15 
Va 20 
1 25 
l'/4 32 


METER AND 
STREET 
SERVICE, 
INCHES 


BUILDING 

SUPPLY 

AND 

BRANCHES, 

INCHES 


MAXIMUM ALLOWABLE LENGTH IN FEET (meters) 


2 50 

VA 65 


40 
(12) 


60 
(18) 


80 
(24) 


100 
(30) 


150 
(46) 


200 
(61) 


250 
(76) 


300 

(91) 


400 
(122) 


500 

(152) 


600 
(183) 


700 
(213) 


800 

(244) 


900 
(274) 


1000 
(305) 


Pressure Range - 30 to 45 psi (207 to 310 kPap 


Va 


'/2*** 


6 


5 


4 


3 


2 


1 


1 


1 























'A 


'A 


16 


16 


14 


12 


9 


6 


5 


5 


4 


4 


3 


2 


2 


2 


1 


'A 


1 


29 


25 


23 


21 


17 


15 


13 


12 


10 


8 


6 


6 


6 


6 


6 


1 


1 


36 


31 


27 


25 


20 


17 


15 


13 


12 


10 


8 


6 


6 


6 


6 


'A 


VA 


36 


33 


31 


28 


24 


23 


21 


19 


17 


16 


13 


12 


12 


11 


11 


1 


VA 


54 


47 


42 


38 


32 


28 


25 


23 


19 


17 


14 


12 


12 


11 


11 


11/2 


VA 


78 


68 


57 


48 


38 


32 


28 


25 


21 


18 


15 


12 


12 


11 


11 


1 


VA 


85 


84 


79 


65 


56 


48 


43 


38 


32 


28 


26 


22 


21 


20 


20 


Wi 


VA 


150 


124 


105 


91 


70 


57 


49 


45 


36 


31 


26 


23 


21 


20 


20 


2 


VA 


151 


129 


129 


110 


80 


64 


53 


46 


38 


32 


27 


23 


21 


20 


20 


1 


2 


85 


85 


85 


85 


85 


85 


82 


80 


66 


61 


57 


52 


49 


46 


43 


Wi 


2 


220 


205 


190 


176 


155 


138 


127 


120 


104 


85 


70 


61 


57 


54 


51 


1 


2 


370 


327 


292 


265 


217 


185 


164 


147 


124 


96 


70 


61 


57 


54 


51 


2 


21/2 


445 


418 


390 


370 


330 


300 


280 


265 


240 


220 


198 


175 


158 


143 


133 


Pressure Range - 46 to 60 psi (317 to 414 kPa)** 


Va 


1/2*** 


7 


7 


6 


5 


4 


3 


2 


2 


1 


1 


1 














'A 


Va 


20 


20 


19 


17 


14 


11 


9 


8 


6 


5 


4 


4 


3 


3 


3 


'A 


1 


39 


39 


36 


33 


28 


23 


21 


19 


17 


14 


12 


10 


9 


8 


8 


1 


1 


39 


39 


39 


36 


30 


25 


23 


20 


18 


15 


12 


10 


9 


. 8 


8 


'A 


VA 


39 


39 


39 


39 


39 


39 


34 


32 


27 


25 


22 


19 


19 


17 


16 


1 


VA 


78 


78 


76 


67 


52 


44 


39 


36 


30 


27 


24 


20 


19 


17 


16 


iVi 


VA 


78 


78 


78 


78 


66 


52 


44 


39 


33 


29 


24 


20 


19 


17 


16 


1 


VA 


85 


85 


85 


85 


85 


85 


80 


67 


55 


49 


41 


37 


34 


32 


30 


\Vi 


VA 


151 


151 


151 


151 


128 


105 


90 


78 


62 


52 


42 


38 


35 


32 


30 


2 


VA 


151 


151 


151 


151 


150 


117 


98 


84 


67 


55 


42 


38 


35 


32 


30 


1 


2 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


83 


80 


XVi 


2 


370 


370 


340 


318 


272 


240 


220 


198 


170 


150 


135 


123 


110 


102 


94 


2 


2 


370 


370 


370 


370 


368 


318 


280 


250 


205 


165 


142 


123 


110 


102 


94 


2 


2/2 


654 


640 


610 


580 


535 


500 


470 


440 


400 


365 


335 


315 


285 


267 


250 


Pressure Range - Over 60 psi (414 kPa)** 


'A 


1/2*** 


7 


7 


7 


6 


5 


4 


3 


3 


2 


1 


1 


1 


1 


1 





'A 


Va 


20 


20 


20 


20 


17 


13 


11 


10 


8 


7 


6 


6 


5 


4 


4 


'A 


1 


39 


39 


39 


39 


35 


30 


27 


24 


21 


17 


14 


13 


12 


12 


11 


1 


1 


39 


39 


39 


39 


38 


32 


29 


26 


22 


18 


14 


13 


12 


12 


11 


'A 


VA 


39 


39 


39 


39 


39 


39 


39 


39 


34 


28 


26 


25 


23 


22 


21 


1 


VA 


78 


78 


78 


78 


74 


62 


53 


47 


39 


31 


26 


25 


23 


22 


21 


\Vi 


VA 


78 


78 


78 


78 


78 


74 


65 


54 


43 


34 


26 


25 


23 


22 


21 


1 


VA 


85 


85 


85 


85 


85 


85 


85 


85 


81 


64 


51 


48 


46 


43 


40 


IVi 


VA 


151 


151 


151 


151 


151 


151 


130 


113 


88 


73 


51 


51 


46 


43 


40 


2 


VA 


151 


151 


151 


151 


151 


151 


142 


122 


98 


82 


64 


51 


46 


43 


40 


1 


2 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


85 


Wi 


2 


370 


370 


370 


370 


360 


335 


305 


282 


244 


212 


187 


172 


153 


141 


129 


2 


2 


370 


370 


370 


370 


370 


370 


370 


340 


288 


245 


204 


172 


153 


141 


129 


2 


2Vi 


654 


654 


654 


654 


654 


650 


610 


570 


510 


460 


430 


404 


380 


356 


329 



** Available static pressure after head loss. 

*** Building supply, not less than three-quarter QA) inch (20 mm) nominal size. 



150 



2010 CALIFORNIA PLUMBING CODE 



WATER SUPPLY AND DISTRIBUTION 



(7) The size and material of irrigation water piping installed 
outside of any building or structure and separated from 
the potable water supply by means of an approved air- 
gap or backflow prevention device is not regulated by 
this code. The potable water piping system supplying 
each such irrigation system shall be adequately sized as 
required elsewhere in this chapter to deliver the full con- 
nected demand of both the domestic use and the irriga- 
tion systems. 

TABLE 6-7 

FLUSHOMETER FIXTURE UNITS FOR WATER 

SIZING USING TABLE 6-5 



FIXTURE CATEGORY: WATER CLOSET W/ FLUSHOMETER VALVES 


NUMBER OF 

FLUSHOMETER 

VALVES 


INDIVIDUAL 

FIXTURE UNITS 

ASSIGNED IN 

DECREASING VALUE 


FIXTURE UNITS ASSIGNED 
FOR WATER CLOSETS AND 
SIMILAR 10-UNIT FIXTURES 
IN ACCUMULATIVE VALUES 


1 


40 


40 


2 


30 


70 


3 


20 


90 


4 


15 


105 


5 or more 


10 each 


115 plus 10 for each addi- 
tional fixture in excess of 5 


FBXTURE CATEGORY: URINALS W/ FLUSHOMETER VALVES 


NUMBER OF 

FLUSHOMETER 

VALVES 


INDIVIDUAL 

FIXTURE UNITS 

ASSIGNED IN 

DECREASING VALUE 


FIXTURE UNITS ASSIGNED 
FOR WATER CLOSETS AND 
SIMILAR 5-UNIT FIXTURES 
IN ACCUMULATIVE VALUES 


1 


20 


20 


2 


15 


35 


3 


10 


45 


4 


8 


53 


5 or more 


5 each 


58 plus 5 for each addi- 
tional fixture in excess of 5 



TABLE 6-8 
SIZING OF RESIDENTIAL WATER SOFTENERS 



REQUIRED SIZE OF SOFTENER 
CONNECTION 


NUMBER OF BATHROOM 
GROUPS SERVED^ 


^4 in. 


up to 2^ 


lin. 


up to 4^ 



Installation of a kitchen sink and dishwasher, laundry tray, and auto- 
matic clothes washer permitted without additional size increase. 
An additional water closet and lavatory permitted. 
Over four (4) bathroom groups, the softener size shall be engineered for 
the specific installation. 
See also Appendix A, Recommended Rules for Sizing the Water Supply Sys- 
tem, and Appendix L, Alternate Plumbing Systems, for alternate methods 
of sizing water supply systems. 



611.0 Drinking Water Treatment Units. 

611.1 Compliance with Standard. Drinking water treatment 
units shall meet the requirements of the appropriate standard 
referenced in Table 14-1. 

611.2 Airgap Discharge. Discharge from drinking water 
treatment units shall enter the drainage system through an air- 
gap or an airgap device that meets the requirements of the ap- 
propriate standards referenced in Table 14-1 . 



611.3 Connection Tubing. The tubing to and from drinking 
water treatment units shall be of a size and material as rec- 
ommended by the manufacturer. The tubing shall comply 
with the requirements of the appropriate standards referenced 
in Table 14-1. 

611.4 Sizing of Residential Softeners. Residential-use water 
softeners shall be sized per Table 6-8. 

612.0 [OSHPD 1,2, 3 & 4] Domestic Hot-Water Distribu- 
tion Systems for Health Facilities and Clinics, 

612.1 The domestic water-heating equipment and distribu- 
tion systems shall supply water at the temperature and 
amounts shown in Table 6-9. Where the system is designed by 
a mechanical engineer, appropriate diversity factors may be 
utilized. 

TABLE 6-9 
[OSHPD 1,2,3 & 4} HOT WATER USE 





CLINICAL 


DIETARY^ 


LAUNDRY^ 


Liter/Hour/Bed 


11.9 


7.2 


7.6 


Gallons/Hour/Bed 


3 


2 


2 


Temperature °C 


41-49.0 


49.0 


71.0 


Temperature °F 


105-120.0 


120.0 


160.0 



1 Rinse water temperature at automatic dishwashing equipment and pot 
sinks shall be 180°F(82°C). 

Exception: The rinse water supply to pot rinse sinks may be deleted if 
a method of chemical disinfection using a three- compartment sink is 
proposed. 

2 The required temperature ofl60°F (71°C) in the laundry is that meas- 
ure in the washing machine and shall be supplied so that the tempera- 
ture may be maintained over the entire wash and rinse period. 

Exception: A lower water temperature ofl4(fF (60°C) may be utilized, pro- 
vided linens are subsequently passed through a tumbler dryer at 180°F 
(82°C) or aflatwork ironer at SOO^F (149°C). 

612.2 At least two pieces of hot-water-heating equipment 
shall be provided to supply hot water for dishwashing and 
minimum patient services such as handwashing and bathing. 
Booster heaters for US'T to ISO'T (52° C to 82''C) water are 
acceptable as a second piece of equipment for dishwashing. 
Where storage tanks are separate from the water heater, at\ 
least two independent storage tanks shall be provided. \ 

612.3 Instantaneous heaters are permitted for supplying hot 
water to handwashing and bathing fixtures if a continuous 
mechanical recirculation system is also provided. 

612.4 Water storage tanks shall be fabricated of corrosion- 
resistant materials or lined with corrosion-resistant materi- 
als. 

612.5 Temperature control valves shall be provided to auto- 
matically regulate the temperature of hot water delivered to 
plumbing fixtures used by patients to a range of 105° F (4 PC) 
minimum to 120°F (49° C) maximum. High temperature 
alarm set at 125°F (52° C) shall be provided. The audible/vi- 
sual device for the high temperature alarm shall annunciate 
at a continuously occupied location. 

612.6 Hot-water distribution system serving patient care areas 
shall be under constant mechanical recirculation to provide 



2010 CALIFORNIA PLUMBING CODE 



151 



WATER SUPPLY AND DISTRIBUTION 



continuous hot water at each hot water outlet Non-recirculated 
fixture branch piping shall not exceed 25 feet (7.62 meters) in 
length Dead-end piping (risers with no flow, branches with no 
fixture) shall not be installed. In renovation projects, dead-end 
piping shall be removed in the area of renovation. Empty ris- 
ers, mains, and branches installed for future use shall be per- 
mitted. 

612.7 At fixtures where water exceeding 125^F (52'^C) is ac- 
cessible to patients or personnel, warning signs in letters at least 
2 inches (51 mm) high shall be posted above the fixtures. 

612.8 Sectionalizing valves shall be provided as required by 
Section 605.8. 

613,0 Dialysis Water-Distribution Systems, 

613.1 [OSHPD ly 2y 3 & 4] Dialysis water feedlines shall be 
PVC (polyvinyl chloride), glass, stainless steel, or PVDF 
(polyvinylidene fluoride) and sized to provide a minimum ve- 
locity ofl. 5 feet per second (0.46 m/s). The piping shall be a sin- 
gleloop system with or without recirculation. Branches to 
dialysis machines shall be V4 inch (6.4 mm) inside dimension 
and take off from the bottom of the mainfeedline. 

613.2 All piping for multistation or central dialysis units shall 
be rigid where possible. All piping and tubing shall be in a neat 
arrangement. The placement of piping or tubing on the floor is 
not permitted. 

613.3 All valves shall be located in accessible locations. 

613.4 Piping and valves shall be identified according to their 
function. 

613.5 A means of preventing backwashing or flushing of the sys- 
tem when one or more stations are in operation shall be pro- 
vided. 

613. 6 A continuous audible alarm shall sound at the nurses 'sta- 
tion and remote equipment rooms when the minimum velocity is 
not maintained, or ifbackwashing or flushing is attempted while 
one or more stations are in operation. 

613. 7 Water used for dialysis treatment shall meet the latest edi- 
tion of ANSI/American Association of Medical Instrumentations 
(AAMI) RD62, Water treatment equipment for hemodialysis ap- 
plications. 

613.8 A diagram of all piping as installed shall be posted at the 
nurses' station and equipment room of all multistation or cen- 
tral dialysis units. 



614.3 [OSHPD 1, 2, 3 & 4] Outlets for non-potable water, 
such as water for industrial or fire-fighting purposes, shall 
be posted in a manner understandable to all employees to in- 
dicate that the water is unsafe and shall not be used for drink- 
ing, washing, cooking, or other personal service purposes. 

614.4 [OSHPD 1] Emergency Water Supply. 

614.4.1 For acute care hospital facilities required to meet 
NPC-5, an on site water supply of 150 gallons (567.9 L) 
(based on 50 gallons/day/bed for 72 hours) of potable 
water per licensed bed shall be provided. 

The emergency supply shall have fittings to allow 
for replenishment of the water supply from transportable 
water sources and a means to collect water in portable 
containers in the event that normal water supply be- 
comes unavailable. 

Exceptions: 

(1) With the licensing agency approval of a water ra- 
tioning plan, the emergency water storage capacity 
may be computed based on the approved water ra- 
tioning plan to provide for 72 hours of operation. 

(2) With the approval of the Office and the licensing 
agency, hook-ups that allow for the use of trans- 
portable sources of potable water may be provided in 
lieu of on-site storage. 

614.4.2 The emergency supply of water shall be provided 
at adequate pressure using gravity, pressure tanks or 
booster pumps. Pumps used for this purpose shall be pro- 
vided with electrical power from the on site emergency 
system. 



614.0 Identification of Potable and Non-Potable Water Lines, 

614.1 Uses Not Permitted. 

614,1,1 [OSHPD 1,2,3& 4] Non-potable water shall not 
be piped for drinking, washing or bathing, washing of 
clothing, cooking, washing of food, washing of cooking or 
eating utensils, washing of food preparation or processing 
premises, or other personal service rooms. 

614.2 [OSHPD 1, 2, 3 & 4] Non-potable water systems or 
systems carrying any other non-potable substance shall be 
installed so as to prevent backflow or back-siphonage into a 
potable water system. 



152 



2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING 
CHAPTER 7 



CODE - MATRIX ADOPTION TABLE 
- SANITARY DRAINAGE 



Adopting Agency 


BSC 


SFM 


HOD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


SS 


SS/CC 


1 


2 


3 


4 












Adopt Entire Chapter 














X 


X 




















Adopt Entire Chapter as 
amended (amended sections 
listed below) 


X 




X 


X 










X 


X 


X 


X 






X 






Adopt only those sections 
that are listed below 




































Chapter/Section 


701.1.2.1 


















X 


X 


X 


X 












701.1.2.2 






X 


X 




























Table 7-3 








X 




























705.1.7 Exception 






X 


X 




























705.1.9 Exception 






X 


X 




























705.2.5 






X 


X 




























710.3.3.1 






X 


X 




























713.4 






X 


X 




























717.1 






























X 






724.0 






























X 






725.0 






























X 






726.0 






























X 






727.0 


















X 



















2010 CALIFORNIA PLUMBING CODE 



153 



1 54 201 CALIFORNIA PLUMBING CODE 



CHAPTER 7 
SANITARY DRAINAGE 



Part I - Drainage Systems. 

701.0 Materials. 

1701.1 Materials for drainage piping shall be in accordance 
with one of the referenced standards in Table 7-1 except that: 

701.1.1 No galvanized wrought-iron or galvanized steel 
pipe shall be used underground and shall be kept not less 
than six (6) inches (152 mm) above ground. 

701.1.2 ABS and PVC DWV piping installations shall 
be installed in accordance with applicable standards ref- 

II erenced in Table 14-1 . Except for individual single-fam- 
ily dwelling units, materials exposed within ducts or 
plenums shall have a flame-spread index of a maximum 
of twenty-five (25) and a smoke-developed index of a 
maximum fifty (50), when tested in accordance with the 
Test for Surface-Burning Characteristics of the Building 
Materials (See the Building Code standards based on 
ASTM E 84 and UL 723). 

70LLZ1 [OSHPD I 2, 3 & 4] ABS and PVC in- 
stallations are not allowed. 

70LL2.2 [HCD 1 & HCD 2] ABS and PVC instal- 
lations are limited to not more than two stories of 
areas of residential accommodation. 

701.1.3 No vitrified clay pipe or fittings shall be used 
above ground or where pressurized by a pump or ejector. 
They shall be kept not less than twelve (12) inches (305 
mm) belowground. 

701.1.4 Copper tube for drainage and vent piping shall 
have a weight of not less than that of copper drainage 
tube type DWV. 

701.1.5 Stainless steel 304 pipe and fittings shall not be 
installed underground and shall be kept not less than six 
(6) inches (152 mm) above ground. 

701.1.6 Cast-iron soil pipe and fittings shall be hsted and 
tested to comply with standards referenced in Table 14- 
1 . Such pipe and fittings shall be marked with country of 
origin and identification of the original manufacturer in 
addition to any markings required by referenced stan- 
dards. 

701.2 Materials for drainage fittings shall be in accordance 
with the applicable standards referenced in Table 7-1 of the 
same diameter as the piping served, and such fittings shall be 
compatible with the type of pipe used. 

701.2.1 Fittings on screwed pipe shall be of the recessed 
drainage type. Burred ends shall be reamed to the full 
bore of the pipe. 

701.2.2 The threads of drainage fittings shall be tapped 
so as to allow one-fourth QA) inch per foot (20.8 mm/m) 
grade. 



701.2.3 Fittings used for drainage shall be of the drainage 
type, have a smooth interior water-way, and be con- 
structed so as to allow one-fourth QA) inch per foot (20.8 
mm/m) grade. 

701.3 Lead. See Table 14-1. Sheet lead shall be not less than 
the following: 

For safe pans - not less than four (4) pounds per square 
foot (19.5 kg/m^) or one-sixteenth QAe) inch (1.6 mm) thick. 

For flashings or vent terminals - not less than three (3) 
pounds per square foot (14.6 kg/m^) or 0.0472 inches (1.2 
mm) thick. 

Lead bends and lead traps shall be not less than one- 
eighth (l/g) inch (3.2 mm) wall thickness. 

701.4 Ferrules and Bushings. 

701.4.1 Caulking ferrules shall be manufactured from 
bronze or copper and shall be in accordance with Table 
7-2(a). I 

701.4.2 Soldering bushings shall be of bronze or copper 
in accordance with Table 7-2(b). | 



TABLE 7-2(a) 
CAULKING FERRULES 



I 



PIPE SIZE 
(inches) 


INSIDE 

DIAMETER 

(inches) 


LENGTH 
(Inches) 


MINIMUM WEIGHT EACH 
lb. oz. 


2 


VA 


41/2 


1 





3 


VA 


4V2 


1 


12 


4 


AVa 


AVi 


2 


8 



CAULKING FERRULES (Metric) 



PIPE SIZE 
(mm) 


INSIDE 

DIAMETER 

(mm) 


LENGTH 
(mm) 


MINIMUM WEIGHT EACH 

(kg) 


50 


57 


114 


0.454 


80 


83 


114 


0.790 


100 


108 


114 


1.132 



TABLE 7-2(b) 
SOLDERING BUSHINGS 



PIPE SIZE 
(inches) 


MINIMUM WEIGHT 

EACH 

lb. oz. 


PIPE SIZE 
(inches) 


MINIMUM WEIGHT 

EACH 

lb. oz. 


VA 





6 


IVi 


1 


6 


l'/2 





8 


3 


2 





2 





14 


4 


3 


8 



SOLDERING BUSHINGS (Metric) 



PIPE SIZE 
(mm) 


MINIMUM 
WEIGHT EACH 

(kg) 


PIPE SIZE 
(mm) 


MINIMUM WEIGHT EACH 

(kg) 


32 


0.168 


65 


0.622 


40 


0.224 


80 


0.908 


50 


0.392 


100 


1.586 



2010 CALIFORNIA PLUMBING CODE 



155 



SANITARY DRAINAGE 



702.0 Fixture Unit Equivalents. 

1 702.1 The unit equivalent of plumbing fixtures shown in 
Table 7-3 shall be based on the size of the trap required, and 
the unit equivalent of fixtures and devices not shown in Table 

17-3 shall be based on the size of trap or trap arm. 
Maximum drainage fixture units for a fixture trap and 
trap arm loadings for sizes up to four (4) inches (100 mm) are 
as follows: 



SIZE OF TRAP AND 


DRAINAGE FIXTURE 




TRAP ARM 


UNIT VALUES (DFU) 


11/4 in. 


(32 mm) 


1 unit 


11/2 in. 


(40 mm) 


3 units 


2 in. 


(50 mm) 


4 units 


3 in. 


(80 mm) 


6 units 


4 in. 


(100 mm) 


8 units 



Exception: On self-service laundries. 



702.2 Drainage fixture units for intermittent flow into the 
drainage system shall be computed on the rated discharge ca- 
pacity in gpm (gallons per minute) (liters per second) in ac- 
cordance with Table 7-4. 



702.3 For a continuous flow into a drainage system, such as 
from a pump, sump ejector, air conditioning equipment, or 
similar device, two (2) fixture units shall be allowed for each 
gallon per minute (3.78 L/m) of flow. 

TABLE 7-4 

DISCHARGE CAPACITY IN GALLONS PER MINUTE 

(LITERS PER SECOND) 

FOR INTERMITTENT FLOW ONLY 



GPM 


(L/sec) 


Up to iVi 


Up to 0.47 


Equals 1 Fixture Unit 


Greater than 7^/2 to 15 


(0.47 to 0.95) 


Equals 2 Fixture Units 


Greater than 15 to 30 


(0.95 to 1.89) 


Equals 4 Fixture Units 


Greater than 30 to 50 


(1.89 to 3.15) 


Equals 6 Fixture Units 



Note: Discharge capacity exceeding 50 gallons per minute (3.15 L/sec.) 
shall be determined by the Authority Having Jurisdiction. 



703.0 Size of Drainage Piping. 

703.1 The minimum sizes of vertical and/or horizontal 
drainage piping shall be determined from the total of fixture 
units connected thereto, and additionally, in the case of ver- 
tical drainage pipes, in accordance with their length. 





TABLE 7-1 
MATERIALS FOR DRAIN, WASTE, VENT PIPE, AND FITTINGS 






MATERIAL 


UNDERGROUND 
DRAIN, WASTE, VENT 
PIPE AND FITTINGS 


ABOVE GROUND 
DRAIN, WASTE, VENT 
PIPE AND FITTINGS 


BUILDING SEWER 
PIPE AND FITTINGS 


REFERENCED 

STANDARD(S) 

PIPE 


REFERENCED 

STANDARD(S) 

FITTINGS 


ABS (Schedule 40) 


X 


X 


X 


ASTM D 1527, 
ASTM D 2661, 
ASTMD2680\ 
ASTM F 628 


ASTM D 2661, 
ASTM D 2680* 


Asbestos-Cement 






X 


ASTM C 428 ^ 
ASTM C 14^ 




Brass 




X 




ASTM B 43 




Cast-Iron 


X 


X 


X 


ASTM A 74, 
ASTM A 888, 
CISPI301 


ASMEB 16.12, 
ASTM A 74, 
ASTM A 888, 
CISPI301 


Co-Extruded ABS (Schedule 40) 


X 


X 


X 


ASTM F 1488 


ASTM D 2661, 
ASTM D 2680* 


Co-Extruded PVC (Schedule 40) 


X 


X 


X 


ASTM F 1488, 
ASTM F 891 


ASTM D 2665, 
ASTM F 794*, 
ASTM F 1866 


Copper (Type DWV) 


X 


X 


X 


ASTM B 75, 
ASTM B 251, 
ASTM B 302, 
ASTM B 306 


ASMEB16.23, 
ASMEB 16.29 


Galvanized Malleable Iron 




X 






ASMEB 16.3 


Galvanized Steel 




X 




ASTM A 53 




PVC (Schedule 40) 


X 


X 


X 


ASTM D 1785, 
ASTM D 2665, 
ASTM F 794* 


ASTM D 2665, 
ASTM F 794*, 
ASTM F 1866 


Stainless Steel 304 




X 




ASMEA112.3T 


ASMEA112.3.1 


Stainless Steel 3 16L 


X 


X 


X 


ASMEA112.3.1 


ASMEA112.3.1 


Vitrified Clay (Extra strength) 






X 


ASTM C 700 


ASTM C 700 



' For Building Sewer applications. 



156 



2010 CALIFORNIA PLUMBING CODE 



SANITARY DRAINAGE 



TABLE 7-3 
DRAINAGE FIXTURE UNIT VALUES (DFU) 



APPLIANCES, APPURTENANCES OR FIXTURES^ 


MINIMUM FIXTURE 
BRANCH PIPE SIZE^'* 


PRIVATE 


PUBLIC 


ASSEMBLY^ 


Bathtub or Combination Bath/Shower 


V/2 


2.0 


2.0 




Bidet 


VA 


1.0 






Bidet 


\Vi 


2.0 






Clothes Washer, domestic, standpipe^ 




3.0 


3.0 


3.0 


Dental Unit, cuspidor 


VA 




1.0 


1.0 


Dishwasher, domestic, with independent drain^ 


XVi 


2.0 


2.0 


2.0 


Drinking Fountain or Water Cooler 


VA 


0.5 


0.5 


1.0 


Food-Waste-Grinder, commercial 


2 




3.0 


3.0 


Floor Drain, emergency 


2 




0.0 


0.0 


Floor Drain (for additional sizes see Section 702) 


2 


2.0 


2.0 


2.0 


Shower, single-head trap 


2 


2.0 


2.0 


2.0 


Multi-head, each additional 


2 


1.0 


1.0 


1.0 


Lavatory, single 


VA 


1.0 


1.0 


1.0 


Lavatory, in sets of two or three 


V/i 


2.0 


2.0 


2.0 


Washfountain 


V/2 




2.0 


2.0 


Washfountain 


2 




3.0 


3.0 


Mobile Home, trap^ 


3 


12.0 






Receptor, indirect waste ^'^ 


V/i 


See footnote^'^ 


Receptor, indirect waste ^'"^ 


2 


See footnote ^'"^ 


Receptor, indirect waste* 


3 


See footnote^ 


Sinks 










Bar 


V/2 


1.0 






Bar^ 


V/2 




2.0 


2.0 


Clinical 


3 




6.0 


6.0 


Commercial with food waste^ 


V/2 




3.0 


3.0 


Special Purpose^ 


V/2 


2.0 


3.0 


3.0 


Special Purpose 


2 


3.0 


4.0 


4.0 


Special Purpose 


3 




6.0 


6.0 


Kitchen, domestic^ 


V/2 


2.0 


2.0 




(with or without food-waste grinder and/or dishwasher) 










Laundry^ 


V/2 


2.0 


2.0 


2.0 


(with or without discharge from a clothes washer) 










Service or Mop Basin 


2 




3.0 


3.0 


Service or Mop Basin 


3 




3.0 


3.0 


Service, flushing rim 


3 




6.0 


6.0 


Wash, each set of faucets 






2.0 


2.0 


Urinal, integral trap 1.0 GPF^ 


2 


2.0 


2.0 


5.0 


Urinal, integral trap greater than 1.0 GPF2 


2 


2.0 


2.0 


6.0 


Urinal, exposed trap^ 


V/2 


2.0 


2.0 


5.0 


Water Closet, 1.6 GPF Gravity Tank^ 


3 


3.0 


4.0 


6.0 


Water Closet, 1 .6 GPF Flushometer Tank^ 


3 


3.0 


4.0 


6.0 


Water Closet, 1.6 GPF Flushometer Valve^ 


3 


3.0 


4.0 


6.0 


Water Closet, greater than 1.6 GPF Gravity Tank^ 


3 


4.0 


6.0 


8.0 


Water Closet, greater than 1.6 GPF Flushometer Valve^ 


3 


4.0 


6.0 


8.0 



Indirect waste receptors shall be sized based on the total drainage capacity of the fixtures that drain therein to, in accordance with Table 7-4. 
Provide a two (2) inch (5 1 mm) minimum drain. 
For refrigerators, coffee urns, water stations, and similar low demands. 
For commercial sinks, dishwashers, and similar moderate or heavy demands. 

Buildings having a clothes-washing area with clothes washers in a battery of three (3) or more clothes washers shall be rated at six (6) fixture units each 
for purposes of sizing common horizontal and vertical drainage piping. 

Water closets shall be computed as six (6) fixture units when determining septic tank sizes based on Appendix K of this code. 
Trap sizes shall not be increased to the point where the fixture discharge may be inadequate to maintain their self-scouring properties. 
Assembly [Public Use (See Table 4-1)]. 
[HCD 2] For drainage fixture unit values related to mobilehome parks in all parts of the State of California, see California Code of Regulations, Title 25, 
Division 1, Chapter 2, Article 5, Section 1268. For drainage fixture unit values related to special occupancy parks in all parts of the State of California, 
see California Code of Regulations, Title 25, Division 1, Chapter 2.2, Article 5, Section 2268. 



2010 CALIFORNIA PLUMBING CODE 



157 



SANITARY DRAINAGE 



703.2 Table 7-5 shows the maximum number of fixture units 
allowed on any vertical or horizontal drainage pipe, building 
drain, or building sewer of a given size; the maximum num- 
ber of fixture units allowed on any branch interval of a given 
size; and the maximum length (in feet and meters) of any ver- 
tical drainage pipe of a given size. 

703.3 For alternate method of sizing drainage piping, see Ap- 
pendix L. 

704.0 Fixture Connections (Drainage). 

704.1 Drainage piping shall be provided with approved inlet 
fittings for fixture connections, correctly located according 
to the size and type of fixture proposed to be connected. 

704.2 Two (2) fixtures set back- to-back, or side-by-side, 
within the distance allowed between a trap and its vent shall 
be permitted to be served by a single vertical drainage pipe 
provided that each fixture wastes separately into an approved 
double-fixture fitting having inlet openings at the same level. 

704.3 Pot sinks, scullery sinks, dishwashing sinks, silverware 
sinks, commercial dishwashing machines, silverware-wash- 
ing machines, and other similar fixtures shall be connected 
directly to the drainage system. A floor drain shall be pro- 
vided adjacent to the fixture, and the fixture shall be con- 
nected on the sewer side of the floor drain trap, provided that 
no other drainage line is connected between the floor drain 
waste connection and the fixture drain. The fixture and floor 

^drain shall be trapped and vented as required by this code. 



705.0 Joints and Connections. 

705.1 Types of Joints. 

705.1.1 Caulked Joints. Caulked joints for cast- iron 
bell-and-spigot soil pipe and other similar joints shall be 
firmly packed with oakum or hemp and filled with 
molten lead to a depth of not less than one (1) inch (25.4 
mm). The lead shall be caulked thoroughly at the inside 
and outside edges of the joint. After caulking, the fin- 
ished joint shall not exceed one-eighth (H) inch (3.2 mm) 
below the rim of the hub. No paint, varnish, or other coat- 
ings shall be permitted on the joining material until after 
the joint has been tested and approved. Caulked joints in 
cast-iron bell-and-spigot water piping shall be made with 
nontoxic materials. 

705.1.2 Cement Mortar Joints. Except for repairs and con- 
nections to existing lines constructed with such joints, ce- 
ment mortar joints shall be prohibited on building sewers. 

705.1.3 Burned Lead Joints. Burned (welded) lead 
joints shall be lapped, and the lead shall be fused together 
to form a uniform weld not less than as thick as the lead 
being joined. 

705.1.4 Asbestos Cement Sewer Pipe Joints. Joints in 
asbestos cement pipe shall be a sleeve coupling of the 
same composition as the pipe or of other approved ma- 
terials, and sealed with rubber rings or joined by an ap- 
proved-type compression coupling. Joints between 
asbestos cement pipe and other approved pipe shall be 
made by means of an approved adapter coupling. 









TABLE 7-5 














MAXIMUM UNIT LOADING AND MAXIMUM LENGTH OF DRAINAGE AND VENT PIPING 






SIZE OF PIPE, inches 


1V4 


V/2 


2 


2Vi2 


3 


4 


5 


6 


8 


10 


12 


(mm) 


(32) 


(40) 


(50) 


(65) 


(80) 


(100) 


(125) 


(150) 


(200) 


(250) 


(300) 


Maximum Units 
























Drainage Piping^ 
Vertical 


1 


2^ 


16^ 


32^ 


48^ 


256 


600 


1380 


3600 


5600 


8400 


Horizontal 


1 


1 


8^ 


14^ 


35^ 


216^ 


428^ 


720^ 


2640^ 


4680^ 


8200^ 


Maximum Length 

Drainage Piping 
Vertical, feet 


45 


65 


85 


148 


212 


300 


390 


510 


750 






(m) 
Horizontal (unlimited) 


(14) 


(20) 


(26) 


(45) 


(65) 


(91) 


(119) 


(155) 


(228) 






Vent Piping 

Horizontal and Vertical 






















Maximum Units 


1 


8^ 


24 


48 


84 


256 


600 


1380 


3600 






Maximum Lengths, feet 
(m) 


45 

(14) 


60 
(14) 


120 
(14) 


180 
(14) 


212 
(14) 


300 
(14) 


390 
(14) 


510 
(14) 


750 
(14) 







Excluding trap arm. 
I ^ Except sinks, urinals, and dishwashers -exceeding one (1) fixture unit. 
Except six-unit traps or water closets. 

Only four (4) water closets or six -unit traps allowed on any vertical pipe or stack; and not to exceed three (3) water closets or six-unit traps on any hor- 
izontal branch or drain. 
^ Based on one-fourth (Va) inch per foot (20.8 mm/m) slope. For one-eighth (Vs) inch per foot (10.4 mm/m) slope, multiply horizontal fixture units by a 
factor of eight-tenths (0.8). 

Note: The diameter of an individual vent shall be not less than one and one-fourth (1 Va) inches (32 mm) nor less than one-half (l/:) the diameter of the drain 
to which it is connected. Fixture unit load values for drainage and vent piping shall be computed from Tables 7-3 and 7-4. Not to exceed one-third (Vi) of 
the total permitted length of any vent may be installed in a horizontal position. When vents are increased one (1) pipe size for their entire length, the max- 
I imum length limitations specified in this table do not apply. This table complies with the requirements of Section 901.2. 



158 



2010 CALIFORNIA PLUMBING CODE 



SANITARY DRAINAGE 



705.1.5 Packing Additives Prohibited. The addition of 
leak-sealing additives to joint packing shall be prohibited. 

705.1.6 Molded Rubber Coupling Joints. When pipe 
is joined by means of molded rubber coupling joints, 
such joints shall conform to approved standards and shall 
not be considered as slip joints. When required, appro- 
priate rubber bushings shall be used to allow for any dif- 
ference in piping material diameters. 

705.1.7 Elastomeric Gasketed and Rubber-Ring Joints. 

Elastomeric gasketed and rubber-ring joints shall comply 
I with the applicable standards referenced in Table 14-1 . 

Exception: [HCD 1 & HCD 2] Compliance with an ap- 
proved nationally recognized installation standard com- 
plying with Section 310.4 of this code and approved by 
the Enforcing Agency is acceptable. 

705.1.8 Shielded Coupling Joints. When piping sys- 
tems are joined by means of shielded couplings, such 
couplings shall conform to approved standards and shall 
not be considered as slip joints. 

705.1.9 Hubless Cast-Iron Pipe Joints. Joints for hub- 
less cast-iron soil pipe and fittings shall conform to ap- 

I plicable standards referenced in Table 14-1 and shall not 
be considered as slip joints. 

Exception: [HCD 1 & HCD 2] Compliance with an ap- 
proved nationally recognized installation standard com- 
plying with Section 310.4 of this code and approved by 
the Enforcing Agency is acceptable. 

705.2 Use of Joints. 

705.2.1 Clay and Sewer Pipe. Joints in vitrified clay pipe 
or between such pipe and metal pipe shall be made as pro- 
vided in Sections 316.1.5, 705.1.6, 705.1.7, or 705.1.8. 

705.2.2 Cast-iron Pipe. Joints in cast-iron pipe shall be 
made as provided in Sections 316.1.2, 316.1.5, 705.1.1, 
705.1.8, or 705.1.9. 

705.2.3 Screw Pipe to Cast-iron. Joints between 
wrought iron, steel, brass, or copper pipe and cast-iron 
pipe shall be either caulked or threaded joints made as 
provided in Section 316.1.1 or 705.1.1, or shall be made 
with approved adapter fittings. 

705.2.4 Lead to Cast-iron, Wrought-Iron, or Steel. 

Joints between lead and cast-iron, wrought-iron, or steel 
pipe shall be made by means of wiped joints to a caulk- 
ing ferrule, soldering nipple, or bushing as provided in 
Section 316.1.2. 

II 705.2.5 ABS and PVC Pipe. [HCD 1 & HCD 2] Joints in 
ABS and PVC pipe shall be made as provided in Section 
316.1.6 of this code. 

705.3 Special Joints. 

705.3.1 Slip Joints. In fixture drains and traps, slip joints 
of approved materials shall be permitted to be used in ac- 
cordance with their approvals. 

705.3.2 Expansion Joints. Expansion joints shall be ac- 
cessible, except when in vent piping or drainage stacks, 
and shall be permitted to be used where necessary to pro- 
vide for expansion and contraction of the pipes. 



705.3.3 Ground Joint, Flared, or Ferrule Connec- 
tions. Brass or copper ground joint, flared, or ferrule- 
type connections that allow adjustment of tubing, but 
provide a rigid joint when made up, shall not be consid- 
ered as slip joints. 

706.0 Changes in Direction of Drainage Flow. 

706.1 Changes in direction of drainage piping shall be made 
by the appropriate use of approved fittings and shall be of the 
angles presented by a one-sixteenth QAe) bend, one-eighth QA) 
bend, or one-sixth Q/e) bend, or other approved fittings of 
equivalent sweep. 

706.2 Horizontal drainage lines, connecting with a vertical 
stack, shall enter through 45 degree (0.79 rad) wye branches, 
60 degree (1.05 rad) wye branches, combination wye and 
one-eighth QA) bend branches, sanitary tee or sanitary tapped 
tee branches, or other approved fittings of equivalent sweep. 
No fitting having more than one (1) inlet at the same level 
shall be used unless such fitting is constructed so that the dis- 
charge from one (1) inlet cannot readily enter any other inlet. 
Double sanitary tees shall be permitted to be used when the 
barrel of the fitting is not less than two (2) pipe sizes larger 
than the largest inlet, (pipe sizes recognized for this purpose 
are 2 in., 2^2 in., 3 in., V/i in., 4 in., AVi in., 5 in., 6 in., etc.) (50, 
65, 80, 90, 100, 115, 125, 150 mm, etc.). 

706.3 Horizontal drainage lines connecting with other hori- 
zontal drainage lines shall enter through 45 degree (0.79 rad) 
wye branches, combination wye and one- eighth (Vs) bend 
branches, or other approved fittings of equivalent sweep. 

706.4 Vertical drainage lines connecting with horizontal 
drainage lines shall enter through 45 degree (0.79 rad) wye 
branches, combination wye and one-eighth QA) bend branches, 
or other approved fittings of equivalent sweep. Branches or off- 
sets of 60 degrees (1.05 rad) shall be permitted to be used only 
when installed in a true vertical position. 

707.0 Cleanouts. 

707.1 Each cleanout fitting for cast-iron pipe shall consist of a 
cast-iron or brass body and an approved plug. Each cleanout for 
galvanized wrought-iron, galvanized steel, copper, or brass pipe 
shall consist of a brass plug as specified in Table 7-6, or a stan- 
dard weight brass cap, or an approved ABS or PVC plastic 
plug, or an approved stainless steel cleanout or plug. Plugs shall 
have raised square heads or approved countersunk rectangular 
slots. 

707.2 Each cleanout fitting and each cleanout plug or cap shall 
be of an approved type. 

707.3 Cleanouts shall be designed to be gas and water-tight. 

707.4 Each horizontal drainage pipe shall be provided with a 
cleanout at its upper terminal, and each run of piping, that is 
more than one-hundred (100) feet (30,480 mm) in total devel- 
oped length, shall be provided with a cleanout for each one- 
hundred (100) feet (30,480 mm), or fraction thereof, in length 
of such piping. An additional cleanout shall be provided in a 
drainage line for each aggregate horizontal change of direction 
exceeding 135 degrees (2.36 rad). 



2010 CALIFORNIA PLUMBING CODE 



159 



SANITARY DRAINAGE 



Exceptions: 

( 1 ) Cleanouts shall be permitted to be omitted on a horizontal 
drain line less than five (5) feet (1,524 mm) in length un- 
less such line is serving sinks or urinals. 

(2) Cleanouts shall be permitted to be omitted on any hori- 
zontal drainage pipe installed on a slope of 72 degrees 
(1.26 rad) or less from the vertical angle (one-fifth (Vs) 
bend). 

(3) Excepting the building drain and its horizontal branches, 
a cleanout shall not be required on any pipe or piping that 
is above the floor level of the lowest floor of the building. 

(4) An approved type of two-way cleanout fitting, installed 
inside the building wall near the connection between the 
building drain and the building sewer or installed outside 
of a building at the lower end of a shall be permitted to be 
substituted for an upper terminal cleanout. 

707.5 Each cleanout shall be installed so that it opens to allow 
cleaning in the direction of flow of the soil or waste or at right 
angles thereto and, except in the case of wye branch and end- 
of-line cleanouts, shall be installed vertically above the flow 
line of the pipe. 

707.6 Each cleanout extension shall be considered as drainage 
piping and each 90 degree (1.6 rad) cleanout extension shall 
be extended from a wye-type fitting or other approved fitting 
of equivalent sweep. 

707.7 Each cleanout for an mterceptor shall be outside of such 
interceptor. 

707.8 Each cleanout, unless installed under an approved cover 
plate, shall be above grade, readily accessible, and so located 
as to serve the purpose for which it is intended. Cleanouts lo- 
cated under cover plates shall be so installed as to provide the 
clearances and accessibility required by this section. 

707.9 Each cleanout in piping two (2) inches (50 mm) or less 
in size shall be so installed that there is a clearance of not less 
than twelve (12) inches (305 mm) in front of the cleanout. 
Cleanouts in piping exceeding two (2) inches (50 mm) shall 
have a clearance of not less than eighteen (18) inches (457 mm) 
in front of the cleanout. Cleanouts in under-floor piping shall 
be extended to or above the finished floor or shall be extended 
outside the building when there is less than eighteen (18) inches 
(457 mm) vertical overall, allowing for obstructions such as 
ducts, beams, and piping, and thirty (30) inches of (762 mm) 
horizontal clearance from the means of access to such cleanout. 
No under-floor cleanout shall be located exceeding twenty (20) 
feet (6,096 mm) from an access door, trap door, or crawl hole. 

707.10 Cleanout fittings shall be not less in size than those 
given in Table 7-6. 

707.11 Cleanouts shall be provided for pressure drainage sys- 
tems as classified under Section 710.7. 

707.12 Countersunk cleanout plugs shall be installed where 
raised heads cause a hazard. 

707.13 When a hubless blind plug is used for a required 
cleanout, the complete coupling and plug shall be accessible 
for removal or replacement. 



TABLE 7-6 
CLEANOUTS 



SIZE OF PIPE 
(inches) 


SIZE OF CLEANOUT 
(inches) 


THREADS 
(per inches) 


V/2 


Wi 


11^2 


2 


\Vi 


ll'/2 


2Vi 


IVi 


8 


3 


2Vi 


8 


4 & larger 


V/i 


8 


TABLE 7-6 
CLEANOUTS (Metric) 


SIZE OF PIPE 
(mm) 


SIZE OF CLEANOUT 
(mm) 


THREADS 
(per 25.4 mm) 


40 


40 


111/2 


50 


40 


111/2 


65 


65 


8 


80 


65 


8 


100 & larger 


90 


8 



707.14 Cleanouts for trap arms shall be installed in accor- 1 
dance with Section 1002.3. 



708.0 Grade of Horizontal Drainage Piping. 

Horizontal drainage piping shall be run in practical alignment 
and a uniform slope of not less than one-fourth QA) inch per 
foot (20.8 mm/m) or 2 percent toward the point of disposal 
provided that, where it is impractical due to the depth of the 
street sewer, to the structural features, or to the arrangement 
of any building or structure to obtain a slope of one-fourth 
QA) of an inch per foot (20.8 mm/m) or 2 percent, any such 
pipe or piping four (4) inches (100 mm) or larger in diameter 
may have a slope of not less than one-eighth (Vs) of an inch 
per foot (10.4 mm/m) or 1 percent, when first approved by 
the Authority Having Jurisdiction. 

709.0 Gravity Drainage Required. 

Wherever practicable, plumbing fixtures shall be drained to 
the public sewer or private sewage disposal system by gravity. 

710.0 Drainage of Fixtures Located Below the Next Up- 
stream Maniiole or Below the Main Sewer Level. 

710.1 Where a fixture is installed on a floor level that is lower 
than the next upstream manhole cover of the public or private 
sewer, serving such drainage piping, shall be protected from 
backflow of sewage by installing an approved type of back- 
water valve. Fixtures on floor levels above such elevation shall 
not discharge through the backwater valve. Cleanouts for drains 
that pass through a backwater valve shall be clearly identified 
with a permanent label stating "backwater valve downstream". 

710.2 Drainage piping serving fixtures that are located below 
the crown level of the main sewer shall discharge into an ap- 
proved water-tight sump or receiving tank, so located as to 
receive the sewage or wastes by gravity. From such sump or 



160 



2010 CALIFORNIA PLUMBING CODE 



SANITARY DRAINAGE 



receiving tank, the sewage or other liquid wastes shall be 
lifted and discharged into the building drain or building sewer 
by approved ejectors, pumps, or other equally efficient ap- 
proved mechanical devices. 

710.3 A sewage ejector or sewage pump receiving the dis- 
charge of water closets or urinals: 

710.3.1 Shall have a discharge capacity of not less than 
20 gallons per minute (75.7 L/m). 

710.3.2 In single dwelling units, the ejector or pump shall 
be capable of passing a one and one-half (IV2) inch (38 
mm) diameter solid ball, and the discharge pipmg of each 
ejector or pump shall have a backwater valve and gate 
valve, and be not less than of two (2) inches (50 mm) in 
diameter. 

710.3.3 In other than single-dwelling units, the ejector or 
pump shall be capable of passing a two (2) inch (5 1 mm) 
diameter solid ball, and the discharge piping of each ejec- 
tor or pump shall have a backwater valve and gate valve, 
and be not less than three (3) inches (80 mm) in diameter. 

71033 J [HCD 1 & HCD 2] The minimum size of 
any pump or any discharge pipe from a sump having 
a water closet connected thereto shall be not less than 
(2) inches (51 mm). 

710.4 The discharge line from such ejector, pump, or other me- 
chanical device shall be provided with an accessible backwa- 
ter or swing check valve and gate or ball valve. If the gravity 
drainage line to which such discharge line connects is hori- 
zontal, the method of connection shall be from the top through 
a wye branch fitting. The gate or ball valve shall be located on 
the discharge side of the backwater or check valve. 

Gate or ball valves, when installed in drainage piping, shall 
be fiillway type with working parts of corrosion-resistant metal. 
Sizes four (4) inches (100 mm) or more in diameter shall have 
cast-iron bodies, and sizes less than four (4) inches (100 mm), 
cast-iron or brass bodies. 

710.5 Building drains or building sewers receiving discharge 
from any pump or ejector shall be adequately sized to prevent 
overloading. Two (2) fixture units shall be allowed for each 
gallon per minute (3.78 L/m) of flow. 

710.6 Backwater valves, gate valves, fuUway ball valves, 
unions, motors, compressors, air tanks, and other mechanical 
devices required by this section shall be located where they will 
be accessible for inspection and repair at all times and, unless 
continuously exposed, shall be enclosed in a masonry pit fitted 
with an adequately sized removable cover. 

Backwater valves shall have bodies of cast-iron, plastic, 
brass, or other approved materials; shall have noncorrosive 
bearings, seats, and self-aligning discs; and shall be constructed 
so as to ensure a positive mechanical seal. Such backwater 
valves shall remain sufficiently open during periods of low 
flows to avoid screening of solids and shall not restrict capac- 
ities or cause excessive turbulence during peak loads. Unless 
otherwise listed, valve access covers shall be bolted type with 
gasket, and each valve shall bear the manufacturer's name cast 
into the body and the cover. 



710.7 The drainage and venting systems, in connection with 
fixtures, sumps, receiving tanks, and mechanical waste-lifting 
devices, shall be installed under the same requirements as pro- 
vided for in this code for gravity systems. 

710.8 Sumps and receiving tanks shall be water-tight and shall 
be constructed of concrete, metal, or other approved materials. 
If constructed of poured concrete, the walls and bottom shall be 
adequately reinforced and designed to recognized acceptable 
standards. Metal sumps or tanks shall be of such thickness as 
to serve their intended purpose and shall be treated internally 
and externally to resist corrosion. 

710.9 Such sumps and receiving tanks shall be automatically 
discharged and, when in any "public use'* occupancy, shall be 
provided with dual pumps or ejectors arranged to ftinction al- 
ternately in normal use and independently in case of overload 
or mechanical failure. The pumps shall have an audio and vi- 
sual alarm, readily accessible, that signals pump failure or an 
overload condition. The lowest inlet shall have a clearance of 
not less than two (2) inches (51 mm) from the high-water or 
"starting" level of the sump. 

710.10 Sumps and receiving tanks shall be provided with sub- 
stantial covers having a bolt-and-gasket- type manhole or 
equivalent opening to permit access for inspection, repairs, and 
cleaning. The top shall be provided with a vent pipe that shall 
extend separately through the roof or, where pemiitted, be com- 
bined with other vent pipes. Such vent shall be large enough to 
maintain atmospheric pressure within the sump under normal 
operating conditions and, in no case, shall be less in size than 
that required by Table 7-5 for the number and type of fixtures 
discharging into the sump, nor less than one and one-half (1 Vi) 
inches (40 mm) in diameter. When the foregoing requirements 
are met and the vent, after leaving the sump, is combined with 
vents from fixtures discharging into the sump, the size of the 
combined vent need not exceed that required for the total num- 
ber of fixtures discharging into the sump. No vent from an air- 
operating sewage ejector shall combine with other vents. 

710.11 Air tanks shall be so proportioned as to be of equal cu- 
bical capacity to the ejectors connected therewith in which 
there shall be maintained an air pressure of not less than two (2) 
pounds for each foot (3 kg for each m) of height the sewage is 
to be raised. No water-operated ejectors shall be permitted. 

710.12 Grinder Pump Ejector. Grinder pumps shall be per- 
mitted to be used. 

710.12.1 Discharge Piping. The discharge piping shall be 
sized per the manufacturer's instructions and shall be not 
less than one and one-fourth (IV4) inches (32 mm) in di- 
ameter. A check valve and frillway-type shutoff valve shall 
be located within the discharge line. 

710.13 Macerating Toilet Systems. Listed macerating toilet 
systems shall be permitted as an alternate to a sewage pump 
system when approved by the Authority Having Jurisdiction. 

710.13.1 Sumps. The sump shall be water- and gas-tight. 

710.13.2 Discharge Piping. The discharge piping shall be 
sized per manufacturer's instructions and shall be not less 
than three-quarter QA) inches (20 mm) in diameter. The 
developed length of the discharge piping shall not exceed 



2010 CALIFORNIA PLUMBING CODE 



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SANITARY DRAINAGE 



the manufactxirer's recommendations. A check valve and 
fullway-type shutoff valve shall be located within the dis- 
charge line or internally within the device. 

710.13.3 Venting. The plumbing fixtures that discharge 
into the macerating device shall be vented per this code. 
The sump shall be vented per manufacturer's instructions 
and such vent shall be permitted to connect to the fixture 
venting. 

711.0 Suds Relief. 

Drainage connections shall not be made into a drainage piping 
system within eight (8) feet (2,438 mm) of any vertical to hor- 
izontal change of direction of a stack containing suds-produc- 
ing fixtures. Bathtubs, laundries, washing machine standpipes, 
kitchen sinks, and dishwashers shall be considered suds-pro- 
ducing fixtures. Where parallel vent stacks are required, they 
shall connect to the drainage stack at a point eight (8) feet 
(2,438 mm) above the lowest point of the drainage stack. 

Exceptions: 

(1) Single-family residences. 

(2) Stacks receiving the discharge from less than three (3) sto- 
ries of plumbing fixtures. 

712.0 Testing. 

712.1 Media. The piping of the plumbing, drainage, and vent- 
ing systems shall be tested with water or air except that plas- 
tic pipe shall not be tested with air. The Authority Having 
Jurisdiction shall be permitted to require the removal of any 
cleanouts, etc., to ascertain whether the pressure has reached all 
parts of the system. After the plumbing fixtures have been set 
and their traps filled with water, they shall be submitted to a 
final test. 

712.2 Water Test. The water test shall be applied to the 
drainage and vent systems either in its entirety or in sections. 
If the test is applied to the entire system, openings in the pip- 
ing shall be tightly closed, except the highest opening, and 
the system filled with water to point of overflow. If the sys- 
tem is tested in sections, each opening shall be tightly 
plugged, except the highest opening of the section under test, 
and each section shall be filled with water, but no section 
shall be tested with less than a ten (10) foot (3,048 mm) head 
of water. In testing successive sections, not less than the 
upper ten (10) feet (3,048 mm) of the next preceding sec- 
tion shall be tested, so that no joint or pipe in the building 
(except the uppermost ten (10) feet (3,048 mm) of the sys- 
tem) shall have been submitted to a test of less than a ten 
(10) foot (3,048 mm) head of water. The water shall be kept 
in the system, or in the portion under test, for not less than 
fifteen (15) minutes before inspection starts. The system 
shall then be tight at points. 

712.3 Air Test. The air test shall be made by attaching an air 
compressor testing apparatus to any suitable opening and, after 
closing all other inlets and outlets to the system, forcing air 
into the system until there is a uniform gauge pressure of five 
(5) pounds per square inch (34.5 kPa) or sufficient to balance 



a column of mercury ten (10) inches (254 mm) in height. The 
pressure shall be held without introduction of additional air 
for a period of not less than fifteen (15) minutes. 

Part II - Building Sewers. 

713.0 Sewer Required. 

713.1 Every building in which plumbing fixtures are installed 
and every premises having drainage piping thereon shall have 
a connection to a public or private sewer, except as provided 
in Sections 101.4.1.3, 713.2, and 713.4. 

713.2 When no public sewer intended to serve any lot or 
premises is available in any thoroughfare or right of way abut- 
ting such lot or premises, drainage piping from any building 
or works shall be connected to an approved private sewage 
disposal system. 

713.3 Within the limits prescribed by Section 713.4 hereof, 
the rearrangement or subdivision into smaller parcels of a lot 
that abuts and is served by a public sewer shall not be deemed 
cause to permit the construction of a private sewage disposal 
system, and plumbing or drainage systems on any such smaller 
parcel or parcels shall connect to the public sewer. 

713.4 The public sewer shall be permitted to be considered as 
not being available when such public sewer or any building or 
any exterior drainage facility connected thereto is located more 
than two-hundred (200) feet (61 m) from any proposed build- 
ing or exterior drainage faciUty on any lot or premises that abuts 
and is served by such public sewer. 

[HCD 1 & HCD 2] For residential occupancies, the public 
sewer may be considered as not being available by the Au- 
thority Having Jurisdiction, 

713.5 No permit shall be issued for the installation, alteration, 
or repair of any private sewage disposal system, or part 
thereof, on any lot for which a connection with a public sewer 
is available. 

713.6 On every lot or premises hereafter connected to a pub- 
lic sewer, all plumbing and drainage systems or parts thereof 
on such lot or premises shall be connected with such public 
sewer. 

Exception: Single-family dwellings and buildings or struc- 
tures accessory thereto, existing and connected to an ap- 
proved private sewage disposal system prior to the time of 
connecting the premises to the public sewer shall be permit- 
ted, when no hazard, nuisance, or insanitary condition is ev- 
idenced and written permission has been obtained from the 
Authority Having Jurisdiction, remain connected to such 
properly maintained private sewage disposal system when 
there is insufficient grade or fall to permit drainage to the 
sewer by gravity. 

714.0 Damage to Public Sewer or Private Sewage Disposal 
System. 

714.1 It shall be unlawful for any person to deposit, by any 
means whatsoever, into any plumbing fixture, floor drain, in- 
terceptor, sump, receptor, or device which is connected to any 



162 



2010 CALIFORNIA PLUMBING CODE 



SANITARY DRAINAGE 



drainage system, public sewer, private sewer, septic tank, or 
cesspool, any ashes; cinders; solids; rags; flammable, poi- 
sonous, or explosive liquids or gases; oils; grease; and any 
other thing whatsoever that would or could cause damage to 
the public sewer, private sewer, or private sewage disposal 
system, 

714.2 No rain, surface, or subsurface water shall be connected 
to or discharged into any drainage system, unless first ap- 
proved by the Authority Having Jurisdiction. 

714.3 No cesspool, septic tank, seepage pit, or drain field 
shall be connected to any public sewer or to any building 
sewer leading to such public sewer. 

714.4 The Authority Having Jurisdiction shall review before 
approval, the installation of a commercial food waste grinder 
connecting to a private sewage disposal system. 

714.5 An approved- type water-tight sewage or wastewater 
holding tank, the contents of which, due to their character, 
must be periodically removed and disposed of at some ap- 
proved off-site location, shall be installed only when required 
by the Authority Having Jurisdiction or the Health Officer to 
prevent anticipated surface or subsurface contamination or 
pollution, damage to the public sewer, or other hazardous or 
nuisance conditions. 

715.0 Building Sewer Materials. 

715.1 The building sewer, beginning two (2) feet (610 mm) 
from any building or structure, shall be of such materials as 
prescribed in this code. 

715.2 Joining methods and materials shall be as prescribed in 
this code. 

715.3 Replacement of existing building sewer and building 
storm sewers using trenchless methodology and materials 
shall be installed in accordance with lAPMO IS -26. 

716.0 Markings. 

Pipe, brick, block, prefabricated septic tanks, prefabricated 
septic tank or seepage pit covers, or other parts or appurte- 
nances incidental to the installation of building sewers or pri- 
vate sewage disposal systems shall conform to the approval 
requirements of Chapter 3 of this code. 

717.0 Size of Building Sewers. 

The minimum size of any building sewer shall be determined 
on the basis of the total number of fixture units drained by 
such sewer, in accordance with Table 7-8. No building sewer 
shall be smaller than the building drain. 

For alternate methods of sizing building sewers, see Ap- 
pendix L. 

71 7.1 [A GR] Meat and Poultry Processing Plants. The sewer 
system shall have the capacity to remove all waste from the 
various processing and cleaning operations and to minimize 
or prevent stoppage and surcharging at the system. 



718.0 Grade, Support, and Protection of Building Sewers. 

718.1 Building sewers shall be run in practical alignment and 
at a uniform slope of not less than one-fourth QA) of an inch 
per foot (20.8 mm/m) toward the point of disposal. 

Exception: When approved by the Authority Having Juris- 
diction and where it is impractical, due to the depth of the 
street sewer or to the structural features or to the arrangement 
of any building or structure, to obtain a slope of one-fourth 
QA) of an inch per foot (20.8 mm/m), any such pipe or piping 
four (4) inches (100 mm) through six (6) inches (150 mm) 
shall be permitted to have a slope of not less than one-eighth 
QA) inch per foot (10.4 mm m) and any such piping eight (8) 
inches (200 mm) and larger shall be permitted to have a slope 
of not less than one-sixteenth (Me) of an inch per foot (5.2 
mm/m). 

718.2 Building sewer piping shall be laid on a firm bed 
throughout its entire length, and any such piping laid in made 
or filled-in ground shall be laid on a bed of approved materi- 
als and shall be properly supported as required by the Au- 
thority Having Jurisdiction. 

718.3 No building sewer or other drainage piping or part 
thereof, which is constructed of materials other than those ap- 
proved for use under or within a building, shall be installed 
under or within two (2) feet (610 mm) of any building or 
structure, or part thereof, nor less than one (1) foot (305 mm) 
below the surface of the ground. The provisions of this sub- 
section include structures such as porches and steps, whether 
covered or uncovered; breezeways; roofed porte cocheres; 
roofed patios; carports; covered walks; covered driveways; 
and similar structures or appurtenances. 

719.0 Cleanouts. 

719.1 Cleanouts shall be placed inside the building near the 
connection between the building drain and the building sewer 
or installed outside the building at the lower end of the build- 
ing drain and extended to grade. 

Additional building sewer cleanouts shall be installed at 
intervals not to exceed one-hundred (100) feet (30,480 mm) 
in straight runs and for each aggregate horizontal change in 
direction exceeding one-hundred and thirty-five (135) degrees 
(2.36 rad). 

719.2 When a building sewer or a branch thereof does not ex- 
ceed ten (10) feet (3,048 mm) in length and is a straight-line 
projection from a building drain that is provided with a 
cleanout, no cleanout will be required at its point of connec- 
tion to the building drain. 

719.3 Required building sewer cleanouts shall be extended 
to grade and shall comply with the appropriate sections of 
Cleanouts, Section 707.0, for sizing, construction, and mate- 
rials. When building sewers are located under buildings, the 
cleanout requirements of Section 707.0 shall apply. 

719.4 Each cleanout shall be installed so that it opens to allow 
cleaning in the direction of flow of the soil or waste or at right 



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163 



SANITARY DRAINAGE 



angles thereto and, except in the case of wye branch and end- 
of-line cleanouts, shall be installed vertically above the flow 
line of the pipe. 

719.5 Cleanouts installed under concrete or asphalt paving 
shall be made accessible by yard boxes or by extending flush 
with paving with approved materials and shall be adequately 
protected. 

719.6 Approved manholes shall be permitted to be installed in 
lieu of cleanouts, when first approved by the Authority Hav- 
ing Jurisdiction. The maximum distance between manholes 
shall not exceed three-hundred (300) feet (91.4 m). 

The inlet and outlet connections shall be made by the use 
of a flexible compression joint not less than twelve (12) 
inches (305 mm) and not exceeding three (3) feet (914 mm) 
from the manhole. No flexible compression joints shall be 
embedded in the manhole base. 

720.0 Sewer and Water Pipes. 

Building sewers or drainage piping of clay or materials that 
are not approved for use within a building shall not be run or 
laid in the same trench as the water pipes unless both of the 
following requirements are met: 

(1) The bottom of the water pipe, at points, shall be not less 
than twelve (12) inches (305 mm) above the top of the 
sewer or drain line. 

(2) The water pipe shall be placed on a solid shelf excavated 
at one (1) side of the common trench with a clear hori- 
zontal distance of not less than twelve (12) inches (305 
mm) from the sewer or drain line. 

Water pipes crossing sewer or drainage piping con- 
structed of clay or materials that are not approved for use 
within a building shall be laid not less than twelve (12) 
inches (305 mm) above the sewer or drain pipe. 

Note: For the purpose of this section, "within the build- 
ing" shall mean within the fixed limits of the building 
foundation. 

721.0 Location. 

721.1 Except as provided in Section 721.2, no building sewer 
shall be located in any lot other than the lot that is the site of 
the building or structure served by such sewer nor shall any 
building sewer be located at any point having less than the 
minimum distances indicated in Table 7-7. 

721.2 Nothing contained in this code shall be construed to 
prohibit the use of all or part of an abutting lot to: 

( 1 ) Provide access to connect a building sewer to an available 
public sewer when proper cause and legal easement, not in 
violation of other requirements, has been first established 
to the satisfaction of the Authority Having Jurisdiction. 

(2) Provide additional space for a building sewer when proper 
cause, transfer of ownership, or change of boundary, not in 
violation of other requirements, has been first established 
to the satisfaction of the Authority Having Jurisdiction. 
The instrument recording such action shall constitute an 
agreement with the Authority Having Jurisdiction and 



shall clearly state and show that the areas so joined or used 
shall be maintained as a unit during the time they are so 
used. Such an agreement shall be recorded in the office of 
the County Recorder as part of the conditions of ownership 
of said properties, and shall be binding on heirs, succes- 
sors, and assigns to such properties. A copy of the instru- 
ment recording such proceedings shall be filed with the 
Authority Having Jurisdiction. 

TABLE 7-7 

MINIMUM HORIZONTAL DISTANCE REQUIRED FROM 

BUILDING SEWER 



Buildings or structures^ 


2 feet 


(610 mm) 


Property line adjoining private property 


Clear^ 




Water supply wells 


50 feet^ 


(15,240 mm) 


Streams 


50 feet 


(15,240 mm) 


On-site domestic water service line 


1 foot^ 


(305 mm) 


Public water main 


10 feet^'^ 


(3,048 mm) 



Note: 



Including porches and steps, whether covered or uncovered; breeze- 
ways; roofed portecocheres; roofed patios; carports; covered walks; cov- 
ered driveways; and similar structures or appurtenances. 
See also Section 313.3. 

Drainage piping shall clear domestic water supply wells by not less than 
fifty (50) feet (15,240 mm). This distance shall be permitted to be re- 
duced to not less than twenty-five (25) feet (7,620 mm) when the 
drainage piping is constructed of materials approved for use within a 
building. 

See Section 720.0. 
For parallel construction. 

For crossings, approval by the Health Department or Authority Having 
Jurisdiction shall be required. 



TABLE 7-8 

MAXIMUM/MINIMUM FIXTURE UNIT LOADING ON BUILDING 

SEWER PIPING 



SIZE OF PIPE, 
Inches (mm) 


SLOPE, INCHES PER FOOT (mm/m) 


Vie (5.2) ^^(10.4) | 74(20.8) 


6 and 
smaller 


(150) 


(As specified in Table 7-5/ 
No minimum loading) 


8 


(200) 


1,950/1,500 


2,800/625 


3,900/275 


10 


(250) 


3,400/1,600 


4,900/675 


6,800/300 


12 


(300) 


5,600/1,700 


8,000/725 


11,200/325 



See also Appendix K, Private Sewage Disposal Systems. For alternate 
methods of sizing drainage piping, see Appendix L. 



111,{^ Abandoned Sewers and Sewage Disposal Facilities. 

722.1 Every abandoned building (house) sewer, or part 
thereof, shall be plugged or capped in an approved manner 
within five (5) feet (1,524 mm) of the property line. 

722.2 Every cesspool, septic tank, and seepage pit that has 
been abandoned or has been discontinued otherwise from fur- 
ther use, or to which no waste or soil pipe from a plumbing fix- 
ture is connected, shall have the sewage removed therefrom 
and be completely filled with earth, sand, gravel, concrete, or 
other approved material. 



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SANITARY DRAINAGE 



722.3 The top cover or arch over the cesspool, septic tank, or 
seepage pit shall be removed before filling, and the filling 
shall not extend above the top of the vertical portions of the 
sidewalls or above the level of any outlet pipe until inspection 
has been called and the cesspool, septic tank, or seepage pit 
has been inspected. After such inspection, the cesspool, sep- 
tic tank, or seepage pit shall be filled to the level of the top of 
the ground. 

722.4 No person owning or controlling any cesspool, septic 
tank, or seepage pit on the premises of such person or in that 
portion of any public street, alley, or other public property 
abutting such premises, shall fail, refuse, or neglect to com- 
ply with the provisions of this section or upon receipt of no- 
tice so to comply from the Authority Having Jurisdiction. 

722.5 Where disposal facilities are abandoned consequent to 
connecting any premises with the public sewer, the permittee 
making the connection shall fill abandoned facilities as re- 
quired by the Authority Having Jurisdiction within thirty (30) 
days from the time of connecting to the public sewer. 

723.0 Building Sewer Test. 

Building sewers shall be tested by plugging the end of the 
building sewer at its points of connection with the public 
sewer or private sewage disposal system and completely fill- 
ing the building sewer with water from the lowest to the high- 
est point thereof, or by approved equivalent low-pressure air 
I test. Plastic DWV piping systems shall not be tested by the air 
test method. The building sewer shall be water-tight at all 
points. 



726,2 Toilet soil lines shall be separated from house drainage 
lines to a point outside the building, and drainage from toilet 
bowls and urinals shall not be discharged into a grease catch 
basin. 



727. [OSHPD 1] Emergency Sanitary Drainage, 

727.1 For acute care hospital fiicilities required to meetNPC- 
5, an on-site emergency holding tank(s) sufrlcient to store 150 
gallons (567.9L) (based on 50 gallons/day /bed for 72 hours) 
of waste water per licensed bed shall be provided. The emer- 
gency holding tanks shall have fittings to allow for transfer of 
the waste to other disposable sources, such as tank trucks. 

Exceptions: 

(1) With the licensing agency approval of a water rationing 
plan, the emergency waste water holding capacity may be 
computed based on the approved water rationing plan to 
provide for 72 hours of operation. 

(2) With the approval of the Office of the licensing agency, 
hook-ups that allow for the use of transportable means of 
waste water disposal may be provided in lieu of on-site 
storage. 



724. [A GR] Meat and Poultry Processing Plant Drainage, 

724.1 The drainage and plumbing systems must permit the 
quick runoff' of all water from plant buildings, and of surface 
water around the plant buildings, and of surface water around 
the plant and on the premises; and all such water shall be dis- 
posed of in such a manner as to prevent a nuisance or health 
hazard. 

724.2 Toilet soil lines shall be separated from house drainage 
lines to a point outside the building unless an automatic back- 
water check valve is installed to prevent backfiow. Drainage 
from toilet bowls and urinals shall not be discharged into a 
grease catch basin, nor shall such drainage be permitted to 
enter the sewer lines at a point where there might be a possi- 
bility of such drainage backing up and flooding the floor of the 
building 



725,0 [AGR] Collection Center and Facilities Drainage, 

Drainage and plumbing systems shall meet the requirements 
of Section 724.1. 

726.0 [AGR] Drainage and Plumbing, General, 

726.1 The outer premises of every official establishment, in- 
cluding docks, areas where cars and other vehicles are 
loaded, driveways, approaches, yards, pens, and alleys, shall 
be drained. 



2010 CALIFORNIA PLUMBING CODE 



165 



1 66 201 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 8 " INDIRECT WASTES 



Adopting Agency 


BSC 


SFM 


HOD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


SS 


ss/cc 


1 


2 


3 


4 












Adopt Entire Chapter 


X 




X 


X 






X 


X 


X 


X 


X 


X 












Adopt Entire Chapter as 
amended (amended sections 
listed below) 




































Adopt only those sections 
that are listed below 




































Chapter/Section 



2010 CALIFORNIA PLUMBING CODE 



167 



168 2010 CALIFORNIA PLUMBING CODE 



CHAPTER 8 
INDIRECT WASTES 



801.0 Indirect Wastes. 

801.1 Airgap or Airbreak Required. Indirect waste piping 
shall discharge into the building drainage system through an 
airgap or airbreak as set forth in this code. Where a drainage 
airgap is required by this code, the minimum vertical distance 
as measured from the lowest point of the indirect waste pipe 
or the fixture outlet to the flood-level rim of the receptor shall 
be not less than one (1) inch (25.4 mm). 

801.2 Food and Beverage Handling Establishments. Es- 
tablishments engaged in the storage, preparation, selling, 
serving, processing, or other handling of food and beverage 
involving the following equipment that requires drainage 
shall provide indirect waste piping for refrigerators, refriger- 
ation coils, freezers, walk-in coolers, iceboxes, ice-making 
machines, steam tables, egg boilers, coffee urns and brewers, 
hot-and-cold drink dispensers, and similar equipment. 

801.2.1 Except for refrigeration coils and ice-making 
machines, the size of the indirect waste pipe shall not be 
smaller than the drain on the unit, but shall not be smaller 
than one (1) inch (25 mm), and the maximum developed 
length shall not exceed fifteen (15) feet (4,572 mm). In- 
direct waste pipe for ice-making machines shall be not 
less than the drain on the unit, and in no case less than 
three-quarters (%) of an inch (20 mm). 

801.2.2 For walk-in coolers, floor drains shall be per- 
mitted to be connected to a separate drainage line dis- 
charging into an outside receptor. The flood-level rim of 
the receptor shall be not less than six (6) inches (152 mm) 
lower than the lowest floor drain. Such floor drains shall 
be trapped and individually vented. Cleanouts shall be 
provided at every 90 degree (1.6 rad) turn and shall be 
accessibly located. Such waste shall discharge through 
an airgap or airbreak into a trapped and vented receptor, 
except that a frill-size airgap is required where the indi- 
rect waste pipe is under vacuum. 

801.2.3 Food-preparation sinks, steam kettles, potato 
peelers, ice cream dipper wells, and similar equipment 
shall be indirectly connected to the drainage system by 
means of an airgap. Bins, sinks, and other equipment 
having drainage connections and used for the storage of 
unpackaged ice used for human ingestion, or used in di- 
rect contact with ready-to-eat food, shall be indirectly 
connected to the drainage system by means of an airgap. 
Each indirect waste pipe from food-handling fixtures or 
equipment shall be separately piped to the indirect waste 
receptor and shall not combine with other indirect waste 
pipes. The piping from the equipment to the receptor 
shall be not less than the drain on the unit, and in no case 
less than one-half (i/2) of an inch (15 mm). 

801.3 Bar and Fountain Sink Traps. Where the sink in a 
bar, soda fountain, or counter is so located that the trap serv- 
ing the sink cannot be vented, the sink drain shall discharge 



through an airgap or airbreak (See Section 801.2.3) into an 
approved receptor that is vented. The developed length from 
the fixture outlet to the receptor shall not exceed five (5) feet 
(1,524 mm). 

801.4 Connections from Water Distribution System. Indi- 
rect waste connections shall be provided for drains, over- 
flows, or relief pipes from potable water pressure tanks, water 
heaters, boilers, and similar equipment that is connected to 
the potable water distribution system. Such indirect waste 
connections shall be made by means of a water-distribution 
airgap constructed in accordance with Table 6-3 . 

801.5 Sterilizers. Lines, devices, or apparatus such as stills, 
sterilizers, and similar equipment requiring waste connections 
and used for sterile materials shall be indirectly connected by 
means of an airgap. Each such indirect waste pipe shall be 
separately piped to the receptor and shall not exceed fifteen 
(15) feet (4,572 mm). Such receptors shall be located in the 
same room. 

801.6 Drip or Drainage Outlets. Apphances, devices, or ap- 
paratus not regularly classified as plumbing fixtures, but 
which have drip or drainage outlets, shall be permitted to be 
drained by indirect waste pipes discharging into an open re- 
ceptor through either an airgap or airbreak (See Section 
801.2.1). 

802.0 Approvals. 

No plumbing fixtures served by indirect waste pipes or re- 
ceiving discharge therefrom shall be installed until first ap- 
proved by the Authority Having Jurisdiction. 

803.0 Indirect Waste Piping. 

Except as hereinafter provided, the size and construction of 
indirect waste piping shall be in accordance with other sec- 
tions of this code applicable to drainage and vent piping. No 
vent from indirect waste piping shall combine with any 
sewer-connected vent, but shall extend separately to the out- 
side air. Indirect waste pipes exceeding five (5) feet (1,524 
mm), but less than fifteen (15) feet (4,572 mm) in length shall 
be directly trapped, but such traps need not be vented. 

Indirect waste pipes less than fifteen (15) feet (4,572 
mm) in length shall be not less than the diameter of the drain 
outlet or tailpiece of the fixture, appliance, or equipment 
served, and in no case less than one-half (Vi) of an inch (15 
mm). Angles and changes of direction in such indirect waste 
pipes shall be provided with cleanouts so as to permit flush- 
ing and cleaning. 

804.0 Indirect Waste Receptors. 

804.1 Plumbing fixtures or other receptors receiving the dis- 
charge of indirect waste pipes shall be approved for the use 
proposed and shall be of such shape and capacity as to prevent 



2010 CALIFORNIA PLUMBING CODE 



169 



INDIRECT WASTES 



splashing or flooding and shall be located where they are 
readily accessible for inspection and cleaning. No standpipe 
receptor for any clothes washer shall extend more than thirty 
(30) inches (762 mm), or not less than eighteen (18) inches 
(457 mm) above its trap. No trap for any clothes washer 
standpipe receptor shall be installed below the floor, but shall 
be roughed in not less than six (6) inches (152 mm) and not 
more than eighteen (18) inches (457 mm) above the floor. No 
indirect waste receptor shall be installed in any toilet room, 
closet, cupboard, or storeroom, nor in any other portion of a 
building not in general use by the occupants thereof; except 
standpipes for clothes washers shall be permitted to be in- 
stalled in toilet and bathroom areas when the clothes washer 
is installed in the same room. 

804.2 Where water service connections are installed for a 
clothes washer, an approved method of waste disposal shall 
be provided. 

805.0 Pressure Drainage Connections. 

Indirect waste connections shall be provided for drains, over- 
flows, or relief vents from the water supply system, and no 
piping or equipment carrying wastes or producing wastes or 
other discharges under pressure shall be directly connected 
to any part of the drainage system. 

The foregoing shall not apply to any approved sump 
pump or to any approved pressure-wasting plumbing fixture 
or device when the Authority Having Jurisdiction has been 
satisfied that the drainage system is adequately sized to ac- 
commodate the anticipated discharge thereof 

806.0 Sterile Equipment. 

Appliances, devices, or apparatus such as stills, sterihzers, 
and similar equipment requking water and waste and used for 
sterile materials shall be drained through an airgap. 

807.0 Appliances. 

807.1 Appliances, devices, equipment, or other apparatus not 
regularly classed as plumbing fixtures, which are equipped 
with pumps, drips, or drainage outlets, shall be permitted to 
be drained by indirect waste pipes discharging into an ap- 
proved type of open receptor. 

807.2 When the condensate waste from air- conditioning coils 
discharges by direct connection to a lavatory tailpiece or to an 
approved accessible inlet on a bathtub overflow, the connec- 
tion shall be located in the area controlled by the same person 
controlling the air-conditioned space. 

807.3 When undiluted condensate waste from a fuel-burning 
condensing appliance is discharged into the drainage system, 
the material in the drainage system shall be cast-iron, galva- 
nized iron, plastic, or other materials approved for this use. 

Exceptions: 

(1) When the above condensate is discharged to an exposed 
fixture tailpiece and trap, such tail-piece and trap shall 
be permitted to be brass. 



(2) Any materials approved in Section 701.0 shall be per- 
mitted to be used when data is provided that the conden- 
sate waste is adequately diluted. 

807.4 No domestic dishwashing machine shall be directly 
connected to a drainage system or food waste disposer with- 
out the use of an approved dishwasher airgap fitting on the 
discharge side of the dishwashing machine. Listed airgaps 
shall be installed with the flood-level (FL) marking at or 
above the flood level of the sink or drainboard, whichever is 
higher. 

808.0 Cooling Water. 

When permitted by the Authority Having Jurisdiction, clean 
running water used exclusively as a cooling medium in an ap- 
pliance, device, or apparatus shall be permitted to discharge 
into the drainage system through the inlet side of a fixture 
trap in the event that a suitable fixture is not available to re- 
ceive such discharge. Such trap connection shall be by means 
of a pipe connected to the inlet side of an approved fixture 
trap, the upper end terminating in a funnel-shaped receptacle 
set adjacent, and not less than six (6) inches (152 mm) above 
the overflow rim of the fixture. 

809.0 Drinking Fountains. 

Drinking fountains shall be permitted to be installed with in- 
direct wastes. 

810.0 Steam and Hot Water Drainage Condensers and 
Sumps. 

810.1 No steam pipe shall be directly connected to any part of 
a plumbing or drainage system, nor shall any water having a 
temperature above 140°F (60°C) be discharged under pres- 
sure directly into any part of a drainage system. Pipes from 
boilers shall discharge by means of indirect waste piping, as 
determined by the Authority Having Jurisdiction or the boiler 
manufacturer's recommendations. Such pipes shall be per- 
mitted to be indirectly connected by discharging into an open 
or closed condenser or an intercepting sump of an approved 
type that will prevent the entrance of steam or such water 
underpressure into the drainage system. Closed condensers or 
sumps shall be provided with a vent that shall be taken off 
the top and extended separately, full size above the roof Con- 
densers and sumps shall be properly trapped at the outlet with 
a deep seal trap extending to within six (6) inches (152 mm) 
of the bottom of the tank. The top of the deep seal trap shall 
have a three-fourths (%) inch (19.1 mm) opening located at 
the highest point of the trap to serve as a siphon breaker. Out- 
lets shall be taken off from the side in such a manner as to 
allow a waterline to be maintained that will permanently oc- 
cupy not less than one-half (!/2) the capacity of the condenser 
or sump. Inlets shall enter above the waterline. Wearing plates 
or baffles shall be installed in the tank to protect the shell. 
The sizes of the blowoff line inlet, the water outlets, and the 
vent shall be as shown in Table 8-1. The contents of con- 
densers receiving steam or hot water under pressure must pass 
through an open sump before entering the drainage system. 



170 



2010 CALIFORNIA PLUMBING CODE 



INDIRECT WASTES 



TABLE 8-1 

PIPE CONNECTIONS IN BLOWOFF 

CONDENSERS AND SUMPS 



BOILER BLOWOFF 


WATER OUTLET 


VENT 


y4in.* 


(20 mm) 


Va in.* 


(20 mm) 


2 in. 


(50 mm) 


lin. 


(25 mm) 


lin. 


(25 mm) 


2^2 in. 


(65 mm) 


VAin. 


(32 mm) 


1^4 in. 


(32 mm) 


3 in. 


(80 mm) 


IViin. 


(40 mm) 


1^/2 in. 


(40 mm) 


4 in. 


(100 mm) 


2 in. 


(50 mm) 


2 in. 


(50 mm) 


5 in. 


(125 mm) 


2'/2 in. 


(65 mm) 


2'/2in. 


(65 mm) 


6 in. 


(150 mm) 



*To be used only with boilers of one-hundred (100) square feet (9.29 m^) of 
heating surface or less. 

810.2 Sumps, condensers, or intercepting tanks that are con- 
structed of concrete shall have walls and bottom not less than 
four (4) inches (102 mm) in thickness, and the inside shall be 
cement plastered not less than one-half (^2) inch (12.7 mm) in 
thickness. Condensers constructed of metal shall be not less 
than No. 12 U.S. standard gauge (0.109 inch) (2.77 mm), and 
such metal condensers shall be protected from external cor- 
rosion by an approved bituminous coating. 

810.3 Sumps and condensers shall be provided with suitable 
means of access for cleaning and shall contain a volume of 
not less than twice the volume of water removed from the 
boiler or boilers connected thereto when the normal water 
level of such boiler or boilers is reduced not less than four (4) 
inches (102 mm). 

810.4 Strainers. Every indirect waste interceptor receiving 
discharge-containing particles that would clog the receptor 
drain shall have a readily removable beehive strainer. 



811.3 Joining materials shall be of approved type and quality. 

811.4 Wherever practicable, piping shall be readily accessible 
and installed with the maximum of clearance from other serv- 
ices. 

811.5 The owner shall make and keep a permanent record of 
the location of piping and venting carrying chemical waste. 

811.6 No chemical vent shall intersect vents for other serv- 
ices. 

811.7 Chemical wastes shall be discharged in a manner ap- 
proved by the Authority Having Jurisdiction. 

811.8 The provisions in this section relative to materials and 
methods of construction shall not apply to installations such 
as photographic or X-ray dark rooms or research or control 
laboratories where minor amounts of adequately diluted 
chemicals are discharged. 

812.0 Clear Water Wastes. 

Water lifts, expansion tanks, cooling jackets, sprinkler sys- 
tems, drip or overflow pans, or similar devices that discharge 
clear wastewater into the building drainage system shall dis- 
charge through an indirect waste. 

813.0 Swimming Pools. 

Pipes carrying wastewater from swimming or wading pools, 
including pool drainage and backwash from filters, shall be 
installed as an indirect waste. Where a pump is used to dis- 
charge waste pool water to the drainage system, the pump dis- 
charge shall be installed as an indirect waste. 



811.0 Chemical Wastes. 

811.1 Chemical or industrial liquid wastes that are hkely to 
damage or increase maintenance costs on the sanitary sewer 
system, detrimentally affect sewage treatment, or contami- 
nate surface or subsurface waters shall be pretreated to render 
them iimocuous prior to discharge into a drainage system. De- 
tailed plans and specifications of the pretreatment facilities 
shall be required by the Authority Having Jurisdiction. 

Piping conveying industrial, chemical, or process wastes 
from their point of origin to sewer-connected pretreatment fa- 
cilities shall be of such material and design as to adequately 
perform its intended function to the satisfaction of the Au- 
thority Having Jurisdiction. Drainage discharge piping from 
pretreatment facilities or interceptors shall conform to stan- 
dard drainage installation procedures. 

Copper tube shall not be used for chemical or industrial 
wastes as defined in this section. 

811.2 Each waste pipe receiving or intended to receive the 
discharge of any fixture into which acid or corrosive chemi- 
cal is placed, and each vent pipe connected thereto, shall be 

I constructed of Chlorinated Poly(vinyl-chloride) (CPVC), 
Polypropylene (PP), Polyvinylidene Fluoride (PVDF), chem- 
ical-resistant glass, high-silicon iron pipe, or lead pipe with a 
wall thickness of not less than one-eighth (l/s) inch (3.2 mm); 
an approved type of ceramic glazed or unglazed vitrified clay; 
or other approved corrosion-resistant materials. 



814.0 Condensate Wastes and Control. 

814.1 Condensate Disposal. Condensate from air washers, 
air-cooling coils, fuel-burning condensing appliances, the 
overflow from evaporative coolers, and similar water-sup- 
plied equipment or similar air-conditioning equipment shall 
be collected and discharged to an approved plumbing fixture 
or disposal area. If discharged into the drainage system, 
equipment shall drain by means of an indirect waste pipe. The 
waste pipe shall have a slope of not less than one-eighth (i/s) 
inch per foot (10.4 mm/m) or I percent slope and shall be of 
approved corrosion-resistant material not smaller than the 
outlet size as required in Table 8-2 for air-cooling coils or 
condensing fuel-burning appliances, respectively. Conden- 
sate or wastewater shall not drain over a public way. 

TABLE 8-2 
MINIMUM CONDENSATE PIPE SIZE 



EQUIPMENT CAPACITY 

IN TONS OF 
REFRIGERATION (kW) 


MINIMUM CONDENSATE 
PIPEDIAMblbR 
IN INCHES (mm) 


Up to 20 


(Up to 70.34) 


Va 


(20) 


21-40 


(73.85-140.67) 


1 


(25) 


41-90 


(144.19-316.5) 


VA 


(32) 


91-125 


(320.03-439.6) 


Wi 


(40) 


126-250 


(443.12-879.2) 


2 


(50) 



2010 CALIFORNIA PLUMBING CODE 



171 



INDIRECT WASTES 



814.2 Size. Air-conditioning condensate waste pipes shall be 
independent of any drainage and waste system and shall be 
not less than the minimum size shown in Table 8-2. 

The size of condensate waste pipes is for one (1) unit or 
a combination of units, or as recommended by the manufac- 
turer. The capacity of waste pipes assumes a one-eighth (i/s) 
inch per foot (10.4 mm/m) or 1 percent slope, with the fol- 
lowing pipe conditions: 

Outside Air - 20% Room Air - 80% 

DB WB DB WB 

90°F 73°F 75T 62.5°F 

(32'^C) (23^C) (24°C) (17^) 

Condensate drain sizing for other slopes or other condi- 
tions shall be approved by the Authority Having Jurisdiction. 

Air-conditioning waste pipes shall be constructed of ma- 
terials specified in Chapter 7. 

814.3 Point of Discharge. Air-conditioning condensate waste 
pipes shall connect indirectly to the drainage system through 
an airgap or airbreak to a properly trapped and vented recep- 
tors dry wells, leach pits, or the tailpiece of plumbing fixtures. 

Condensate waste shall not drain over a public way. 



172 2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 9 -VENTS 



Adopting Agency 


BSC 


SFM 


HOD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


SS 


SS/CC 


1 


2 


3 


4 












Adopt Entire Chapter 














X 


X 




















Adopt Entire Chapter as 
amended (amended sections 
Hsted below) 


X 




X 


X 










X 


X 


X 


X 












Adopt only those sections 
that are listed below 




































Chapter/Section 


903.1.2.1 


















X 


X 


X 


X 












903.1.3 






X 


X 




























903.1,4 






X 


X 




























906.2.1 


















X 


X 


X 


X 













2010 CALIFORNIA PLUMBING CODE 



173 



174 2010 CALIFORNIA PLUMBING CODE 



CHAPTER 9 

VENTS 



1 901.0 General. 

901.1 Vents Required. 

Each plumbing fixture trap, except as otherwise provided in 
this code, shall be protected against siphonage and back-pres- 
sure, and air circulation shall be ensured throughout all parts 
of the drainage system by means of vent pipes installed in ac- 
cordance with the requirements of this chapter and as other- 
wise required by this code. 

901.2 Trap Seal Protection. The vent system shall be de- 
signed to prevent a trap seal from being exposed to a pres- 
sure differential that exceeds one (1) inch of a water column 
(249 Pa) on the outlet side of the trap. 

902.0 Vents Not Required. 

902.1 Vent piping shall be permitted to be omitted on an inter- 
ceptor when such interceptor acts as a primary settling tank and 
discharges through a horizontal indirect waste pipe into a sec- 
ondary interceptor. The second interceptor shall be properly 
trapped and vented. 

902.2 Traps serving sinks that are part of the equipment of bars, 
soda fountains, and counters need not be vented when the lo- 
cation and construction of such bars, soda fountains, and coun- 
ters is such as to make it impossible to do so. When such 
conditions exist, said sinks shall discharge by means of ap- 
proved indirect waste pipes into a floor sink or other approved 
type of receptor. 

903.0 Materials. 

903.1 Vent pipe and fittings shall be in accordance with the 
applicable standards referenced in Table 7-1, except that: 

903.1.1 No galvanized steel or 304 stainless steel pipe 
shall be installed underground and shall be not less than six 
(6) inches (152 mm) above ground. 

903.1.2 ABS and PVC DWV piping installations shall be 
in accordance with the applicable standards referenced in 
Table 14-1. Except for individual single-family dwelling 
units, materials exposed within ducts or plenums shall 
have a flame-spread index of a maximum of twenty-five 
(25) and a smoke-developed index of not more than fifty 
(50) when tested in accordance with the Test for Surface- 
Burning Characteristics ofthe Building Materials (see the 
Building Code standards based on ASTM E 84 and UL 
723). 

903.1.2.1 [OSHPD 1,2, 3 & 4] ABS and PVC in- 
stallations are not allowed. 

903.1.3 [HCD 1 & HCD 2] ABS or PVC installations are 
limited to not more than two stories of areas of residen- 
tial accommodation. 



903.L4 [HCD 1 & HCD 2] All malleable iron vents shall II 
be galvanized. 

903.2 Use of Copper Tubing. 

903.2.1 Copper tube for underground drainage and vent 
piping shall have a weight of not less than that of copper 
drainage tube type DWV. 

903.2.2 Copper tube for above ground drainage and vent 
piping shall have a weight of not less than that of copper 
drainage tube type DWV. 

903.2.3 Copper tube shall not be used for chemical or in- 
dustrial wastes as defined in Section 811.0. 

903.2.4 Hard-drawn copper tubing, in addition to the re- 
quired incised marking, shall be marked in accordance with 
either ASTM B 306, Standard for Copper Drainage Tube 
(DWV), or ASTM B 88, Standard for Seamless Copper 
Water Tube as hsted in Table 14-1. The colors shall be: 
Type K, green; Type L, blue; Type M, red; Type DWV, yel- 
low. 

903.3 Changes in direction of vent piping shall be made by 
the appropriate use of approved fittings, and no such pipe 
shall be strained or bent. Burred ends shall be reamed to the 
full bore ofthe pipe. 

904.0 Size of Vents. 

904.1 The size of vent piping shall be determined from its 
length and the total number of fixture units connected thereto, 
as set forth in Table 7-5. The diameter of an individual vent 
shall be not less than one and one-fourth {\Va) inches (32 mm) 
nor less than one-half ('/2) the diameter ofthe drain to which it 
is connected. In addition, the drainage piping of each building 
and each connection to a public sewer or a private sewage dis- 
posal system shall be vented by means of one (1) or more vent 
pipes, the aggregate cross-sectional area of which shall be not 
less than that of the largest required building sewer, as deter- 
mined from Table 7-5. Vent pipes from fixtures located up- 
stream from pumps, ejectors, backwater valves, or other 
devices that in any way obstruct the free flow of air and other 
gases between the building sewer and the outside atmosphere 
shall not be used for meeting the cross-sectional area venting 
requirements of this section. 

Exception: When connected to a common building sewer, the 
drainage piping of two (2) or more buildings located on the 
same lot and under one (1) ownership shall be permitted to be 
vented by means of piping sized in accordance with Table 7-5, 
provided the aggregate cross-sectional area of vents is not less 
than that ofthe largest required common building sewer. 

904.2 No more than one-third QA) ofthe total permitted length, 
per Table 7-5, of any minimum- sized vent shall be installed in 
a horizontal position. 

Exception: When a minimum-sized vent is increased one (1) 
pipe size for its entire length, the maximum length limitation 
does not apply. 



2010 CALIFORNIA PLUMBING CODE 



175 



VENTS 



905.0 Vent Pipe Grades and Connections. 

905.1 Vent and branch vent pipes shall be free from drops or 
sags, and each such vent shall be level or shall be so graded and 
connected as to drip back by gravity to the drainage pipe it 

serves. 

905.2 Where vents connect to a horizontal drainage pipe, each 
vent pipe shall have its invert taken off above the drainage 
centerline of such pipe downstream of the trap being served. 

905.3 Unless prohibited by structural conditions, each vent 
shall rise vertically to a point not less than six (6) inches (152 
mm) above the flood-level rim of the fixture served before off- 
setting horizontally, and whenever two (2) or more vent pipes 
converge, each such vent pipe shall rise to a point not less than 
six (6) inches (152 mm) in height above the flood-level rim 
of the plumbing fixture it serves before being connected to any 
other vent. Vents less than six (6) inches (152 mm) above the 
flood-level rim of the fixture shall be installed with approved 
drainage fittings, material, and grade to the drain. 

905.4 Vent pipes shall extend undiminished in size above the 
roof, or shall be reconnected with a soil or waste vent of proper 
size. 

905.5 The vent pipe opening from a soil or waste pipe, ex- 
cept for water closets and similar fixtures, shall not be below 
the weir of the trap. 

905.6 Two (2) fixtures shall be permitted to be served by a 
common vertical pipe when each such fixture wastes sepa- 
rately into an approved double fitting having inlet openings at 
the same level. 

906.0 Vent Termination. 

906.1 Each vent pipe or stack shall extend through its flash- 
ing and shall terminate vertically not less than six (6) inches 
(152 mm) above the roof nor less than one (1) foot (305 mm) 
from any vertical surface. 

906.2 Each vent shall terminate not less than ten (10) feet 
(3,048 mm) from, or not less than three (3) feet (914 mm) 
above, any op enable window, door, opening, air intake, or 
vent shaft, or not less than three (3) feet (914 mm) in every di- 
rection from any lot line, alley and street excepted. 

906.2 J [OSHPD ly2,3& 4] Each vent pipe shall ter- 
minate not less than twenty-five (25) feet (7620 mm) from 
any air intake or vent shaft. 

906.3 Vent pipes shall be extended separately or combined, of 
full required size, not less than six (6) inches (152 mm) above 
the roof or fire wall. Flagpoling of vents shall be prohibited 
except where the roof is used for purposes other than weather 
protection. Vents within ten (10) feet (3,048 mm) of any part 
of the roof that is used for such other purposes shall extend 
not less than seven (7) feet (2,134 mm) above such roof and 
shall be securely stayed. 

906.4 Vent pipes for outdoor installations shall extend not less 
than ten (10) feet (3,048 mm) above the surrounding ground 
and shall be securely supported. 

906.5 Joints at the roof around vent pipes shall be made water- 
tight by the use of approved flashings or flashing material 



906.6 Lead. See Table 14-1 . Sheet lead shall be not less than 
the following: 

For safe pans - not less than four (4) pounds per square 
foot (19.5 kg/m^) or one- sixteenth (Vie) inch (1.6 mm) thick. 

For flashings or vent terminals - not less than three (3) 
pounds per square foot (14.6 kg/m^). 

Lead bends and lead traps shall be not less than one- 
eighth QA) inch (3.2 mm) wall thickness. 

906.7 Frost or Snow Closure. Where frost or snow closure 
is likely to occur in locations having minimum design tem- 
perature below 0°F (-17.8°C), vent terminals shall be not less 
than two (2) inches (50 mm) in diameter, but in no event 
smaller than the required vent pipe. The change in diameter 
shall be made inside the building not less than one (1) foot 
(305 mm) belbw the roof in an insulated space and terminate 
not less than ten (10) inches (254 mm) above the roof, or as 
required by the Authority Having Jurisdiction. 

907.0 Vent Stacks and Relief Vents. 

907.1 Each drainage stack that extends ten (10) or more sto- 
ries above the building drain or other horizontal drain, shall 
be served by a parallel vent stack, which shall extend undi- 
minished in size from its upper terminal and connect to the 
drainage stack at or immediately below the lowest fixture 
drain. Each such vent stack shall also be connected to the 
drainage stack at each fifth floor, counting down from the up- 
permost fixture drain, by means of a yoke vent, the size of 
which shall be not less in diameter than either the drainage 
or the vent stack, whichever is smaller. 

907.2 The yoke vent connection to the vent stack shall be 
placed not less than forty-two (42) inches (1,067 mm) above 
the floor level, and the yoke vent connection to the drainage 
stack shall be by means of a wye-branch fitting placed below 
the lowest drainage branch connection serving that floor. 

908.0 Wet Venting. 

908.1 Vertical Wet Venting. 

908.1.1 Where Permitted. Wet venting is limited to ver- 
tical drainage piping receiving the discharge from the 
trap arm of one (1) and two (2) fixture unit fixtures that 
also serves as a vent not exceeding four (4) fixtures. Wet- 
vented fixtures shall be within the same story; provided, 
further, that fixtures with a continuous vent discharging 
into a wet vent shall be within the same story as the wet- 
vented fixtures. No wet vent shall exceed six (6) feet 
(1,829 mm) in developed length. 

908.1.2 Size. The vertical piping between any two (2) con- 1 
secutive inlet levels shall be considered a wet- vented sec- 
tion. Each wet- vented section shall be not less than one 
(1) pipe size exceeding the required minimum waste pipe 
size of the upper fixture or shall be one (1) pipe size ex- 
ceeding the required minimum pipe size for the sum of the 
fixture units served by such wet-vented section, whichever 
is larger, but in no case less than two (2) inches (5 1 mm). 

908.1.3 Vent Connection. Common vent sizing shall be | 
the sum of the fixture units served but, in no case, smaller 



176 



2010 CALIFORNIA PLUMBING CODE 



VENTS 



than the minimum vent pipe size required for any fixture 
served, or by Section 904.0. 

908.2 Horizontal Wet Venting for Bathroom Groups. 

908.2.1 Where Permitted. Water closets, bathtubs, show- 
ers and floor drains within one (1) or two (2) bathroom 
groups located on the same floor level and for private use 
shall be permitted to be vented by a wet vent. The wet vent 
shall be considered the vent for the fixtures and shall extend 
from the connection of the dry vent along the direction of 
the flow in the drain pipe to the most downstream fixture 
drain or trap arm connection to the horizontal branch drain. 
Each wet-vented fixture drain or trap arm shall connect in- 
dependently to the wet-vented horizontal branch drain. 
Each individual fixture drain or trap arm shall connect hor- 
izontally to the wet-vented horizontal branch drain or shall 
be provided with a dry vent. The trap to vent distance shall 
be in accordance with Table 10-1 . Only the fixtures within 
the bathroom groups shall connect to the wet-vented hori- 
zontal branch drain. The water closet fixture drain or trap 
arm connection to the wet vent shall be downstream of any 
fixture drain or trap arm connections. Any additional fix- 
tures shall discharge downstream of the wet vent system 
and be conventionally vented. 

908.2.2 Vent Connection. The dry vent connection to the 
wet vent shall be an individual vent or common vent for 
the lavatory, urinal, bidet, shower, or bathtub. Only one 
(1) wet-vented fixture drain or trap arm shall discharge 
upstream of the dry-vented fixture drain connection. 

908.2.3 Size. The wet vent shall be sized based on the fix- 
ture unit discharge into the wet vent. The wet vent shall be 
not less than two (2) inches (50 mm) in diameter for four 
(4) dfij or less, and not less than three (3) mches (80 mm) 
in diameter for five (5) dfii or more. The dry vent shall be 
sized in accordance with Tables 7-3 and 7-5 based on the 
total fixtures units discharging into the wet vent. 

909.0 Special Venting for Island Fixtures. 

Traps for island sinks and similar equipment shall be roughed in 
above the floor and shall be permitted to be vented by extend- 
ing the vent as high as possible, but not less than the drainboard 
height and then retuming it downward and connecting it to the 
horizontal sink drain immediately downstream from the verti- 
cal fixture drain. The return vent shall be connected to the hor- 
izontal drain through a wye-branch fitting and shall, in addition, 
be provided with a foot vent taken ofl" the vertical fixture vent 
by means of a wye branch immediately below the floor and ex- 
tending to the nearest partition and then through the roof to the 
open air, or shall be permitted to be connected to other vents at 
a point not less than six (6) inches (152 mm) above the flood- 
level rim of the fixtures served. Drainage fittings shall be used 
on all parts of the vent below the floor level, and a slope of not 
less than one-fourth (!4) inch per foot (20.8 mm/m) back to the 
drain shall be maintained. The return bend used under the drain- 
board shall be a one (1) piece fitting or an assembly of a 45 de- 
gree (0.79 rad), a 90 degree (1 .6 rad), and a 45 degree (0.79 rad) 
elbow in the order named. Pipe sizing shall be as elsewhere re- 
quired in this code. The island sink drain, upstream of the re- 



turned vent, shall serve no other fixtures. An accessible cleanout 
shall be installed in the vertical portion of the foot vent. 

910.0 Combination Waste and Vent Systems. 

910.1 Combination waste and vent systems shall be permit- 
ted only where structural conditions preclude the installation 
of conventional systems as otherwise prescribed by this code. 

910.2 Plans and specifications for each combination waste 
and vent system shall first be approved by the Authority Hav- 
ing Jurisdiction before any portion of any such system is in- 
stalled. 

910.3 Each combination waste and vent system, as defined 
in Chapter 2, shall be provided with a vent or vents adequate 
to ensure free circulation of air. Any branch exceeding fifteen 
(15) feet (4,572 mm) in length shall be separately vented in an 
approved manner. The area of any vent installed in a combi- 
nation waste and vent system shall be not less than one-half 
(Vi) the inside cross-sectional area of the drain pipe served. 
The vent connection shall be downstream of the uppermost 
fixture. 

910.4 Each waste pipe and each trap in any such system shall 
be not less than two (2) pipe sizes exceeding the sizes re- 
quired by Chapter 7 of this code, and not less than two (2) 
pipe sizes exceeding any fixture tailpiece or connection. 

910.5 No vertical waste pipe shall be used in any such system, 
except the tailpiece or connection between the outlet of a 
plumbing fixture and the trap. Such tailpieces or connections 
shall be as short as possible, and in no case shall exceed two 
(2) feet (610 mm). 

Exception: Branch lines shall be permitted to have 45 degree 

(0.79 rad) vertical offsets. 

910.6 An accessible cleanout shall be installed in each vent 
for the combination waste and vent system. Cleanouts shall 
not be required on any wet- vented branch serving a single 
trap when the fixture tailpiece or connection is not less than 
two (2) inches (50 mm) in diameter and provides ready access 
for cleaning through the trap. 

910.7 No water closet or urinal shall be installed on any such 
system. Other one (1), two (2), or three (3) unit fixtures re- 
motely located from the sanitary system and adjacent to a 
combinafion waste and vent system shall be permitted to be 
connected to such system in the conventional manner by 
means of waste and vent pipes of regular sizes, providing that 
the two (2) pipe size increase required in Section 910.4 is 
based on the total fixture unit load connected to the system. 
Note: See Appendix B of this code for explanatory notes on 
the design of combination waste and vent systems. 

911.0 Engineered Vent System. 

911.1 General. The design and sizing of a vent system shall 
be permitted to be determined by accepted engineering prac- 
tice. The system shall be designed by a registered design pro- 
fessional and approved in accordance with Section 301.4. 

911.2 Minimum Requirements. An engineered vent system 
shall provide protection of the trap seal in accordance with 
Section 901.2. 



2010 CALIFORNIA PLUMBING CODE 



177 



178 2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 10 -TRAPS AND INTERCEPTORS 



Adopting Agency 


BBC 


SFM 


HCD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


SS 


ss/cc 


1 


2 


3 


4 












Adopt Entire Chapter 


X 












X 


X 




















Adopt Entire Chapter as 
amended (amended sections 
listed below) 






X 


X 










X 


X 


X 


X 






X 






Adopt only those sections 
that are listed below 




































Chapter/Section 


1003.1 Exception 2 






X 


X 




























1010.1 






























X 






1010.2 






























X 






1010.3 






























X 






1010.4 






























X 






1014.1A 


















X 


X 


X 


X 












1014.1B 


















X 


X 


X 


X 












1014.1C 


















X 


X 


X 


X 












1015.6 


















X 


X 


X 


X 












1015.7 


















X 


X 


X 


^ 













2010 CALIFORNIA PLUMBING CODE 



179 



180 2010 CALIFORNIA PLUMBING CODE 



CHAPTER 10 
TRAPS AND INTERCEPTORS 



1001.0 Traps Required. 

1001.1 Each plumbing fixture, excepting those having inte- 
gral traps or as permitted in Section 1001.2, shall be sepa- 
rately trapped by an approved type of water seal trap. Not 
more than one (1) trap shall be permitted on a trap arm. 

1001.2 One (1) trap shall be permitted to serve a set of not 
more than three (3) single compartment sinks or laundry tubs 
of the same depth or three (3) lavatories immediately adja- 
cent to each other and in the same room if the waste outlets 
are not more than thirty (30) inches (762 mm) apart and the 
trap is centrally located when three (3) compartments are in- 
stalled. 

1001.3 No food waste disposal unit shall be installed with any 
set of restaurant, commercial, or industrial sinks served by a 
single trap; each such food waste disposal unit shall be con- 
nected to a separate trap. Each domestic clothes washer and 
each laundry tub shall be connected to a separate and inde- 
pendent trap, except that a trap serving a laundry tub shall be 
permitted to also receive the waste from a clothes washer set 
adjacent thereto. No clothes washer or laundry tub shall be 
connected to any trap for a kitchen sink. 

1001.4 The vertical distance between a fixture outlet and the 
trap weir shall be as short as practicable, but in no case shall 
the tailpiece from any fixture exceed twenty-four (24) inches 
(610 mm) in length. 

1002.0 Traps Protected by Vent Pipes. 

1002.1 Each plumbing fixture trap, except as otherwise pro- 
vided in this code, shall be protected against siphonage, back- 
pressure, and air circulation shall be assured throughout all 
parts of the drainage system by means of a vent pipe installed 
in accordance with the requirements of this code. 

1002.2 Each fixture trap shall have a protecting vent so lo- 
cated that the developed length of the trap arm from the trap 
weir to the inner edge of the vent shall be within the distance 



given in Table 10-1, but in no case less than two (2) times the 
diameter of the trap arm. 

1002.3 A trap arm shall be permitted to change direction with- 
out the use of a cleanout when such change of direction does 
not exceed 90 degrees (1.6 rad). All horizontal changes in di- 
rection of trap arms shall comply with Section 706.3. 

Exception: For trap arms three (3) inches (80 mm) in diam- 
eter and larger, the change of direction shall not exceed 135 
degrees (2.36 rad) without the use of a cleanout. 

1002.4 The vent pipe opening from a soil or waste pipe, ex- 
cept for water closets and similar fixtures, shall not be below 
the weir of the trap. 

1003.0 Traps — Described. 

1003.1 Each trap, except for traps within an interceptor or 
similar device shall be self-cleaning. Traps for bathtubs, 
showers, lavatories, sinks, laundry tubs, floor drains, urinals, 
drinking fountains, dental units, and similar fixtures shall be 
of standard design, weight and shall be of ABS, cast brass, 
cast iron, lead, PP, PVC, or other approved material. An ex- 
posed and readily accessible drawn-brass tubing trap, not less 
than 17 B & S Gauge (0.045 inch) (l.l mm), shall be per- 
mitted to be used on fixtures discharging domestic sewage. 

Exceptions: 

(1) Drawn-brass tubing traps shall not be used for urinals. 

Each trap shall have the manufacturer's name stamped 
legibly in the metal of the trap, and each tubing trap shall 
have the gauge of the tubing in addition to the manufac- 
turer's name. Every trap shall have a smooth and uniform 
interior waterway. 

(2) [HCD 1 & HCD 2] Non-water supplied urinals conforming 

to ASMEA112. 19,19-2006, Standard for Vitreous China 
Nonwater Urinals, or reference standards in Table 14-1 for 
non-vitreous ceramic or plastic urinal fixtures. 

1003.2 A maximum of one (1) approved slip joint fitting shall 
be permitted to be used on the outlet side of a trap, and no 



TABLE 10-1 

HORIZONTAL LENGTHS OF TRAP ARMS 

(EXCEPT FOR WATER CLOSETS AND SIMILAR FIXTURES)* 



TRAP ARM PIPE 
DIAMETER 


DISTANCE TRAP TO 
VENT MINIMUM 


LENGTH MAXIMUM 


TRAP ARM PIPE 
DIAMETER 


DISTANCE TRAP TO 
VENT MINIMUM 


LENGTH MAXIMUM 


1^4- 


m- 


30"(2'-6") 


32 mm 


64 mm 


762 mm 


V/2'' 


3" 


42" (3 '-6") 


40 mm 


76 mm 


1,067 mm 


r 


r 


60"(5'-0") 


50 mm 


102 mm 


1,524 mm 


r 


6" 


ir (6'-o") 


80 mm 


152 mm 


1,829 mm 


4" 


8" 


120"(10'-0") 


100 mm 


203 mm 


3,048 mm 


Exceeding 4" 


2 X Diameter 


120"(10'-0") 


Exceeding 100 mm 


2x Diameter 


3,048 mm 



Maintain one-fourth (Va) inch per foot slope (20.8 mm/m) 

*The developed length between the trap of a water closet or similar fixture (measured from the top of the closet, flange to the inner edge of the vent) and 
it's vent shall not exceed six (6) feet (1,829 mm) 



2010 CALIFORNIA PLUMBING CODE 



181 



TRAPS AND INTERCEPTORS 



tubing trap shall be installed without a listed tubing trap 
adapter. Listed plastic trap adapters shall be permitted to be 
used to connect listed metal tubing traps. 

1003.3 The size (nominal diameter) of a trap for a given fix- 
ture shall be sufficient to drain the fixture rapidly, but in no 
case less than nor more than one (1) pipe size larger than 
given in Table 7-3. The trap shall be the same size as the trap 
arm to which it is connected. 

1004.0 Traps — Prohibited. 

No form of trap that depends for its seal upon the action of 
movable parts shall be used. No trap that has concealed inte- 
rior partitions, except those of plastic, glass, or similar corro- 
sion-resisting material, shall be used. "S" traps, bell traps, and 
crown-vented traps shall be prohibited. No fixture shall be 
double trapped. Drum and bottle traps shall be installed only 
for special conditions. No trap shall be installed without a 
vent, except as otherwise provided in this code. 

11004.1 Bladders, check valves or any other type of devices 
with moveable parts shall be prohibited to serve as a trap, 

1005.0 Trap Seals. 

I Each fixture trap shall have a liquid seal of not less than two 
(2) inches (51 mm) and not more than four (4) inches (102 
mm), except where a deeper seal is found necessary by the 
Authority Having Jurisdiction. Traps shall be set true with re- 

I spect to their liquid seals and, where necessary, they shall be 
protected from freezing. 

1006.0 Floor Drain Traps. 

Floor drains shall connect into a trap so constructed that it 
can be readily cleaned and of a size to serve efficiently the 
purpose for which it is intended. The drain inlet shall be so lo- 
cated that it is at all times in Ml view. When subject to reverse 
flow of sewage or hquid waste, such drains shall be equipped 
with an approved backwater valve. 



1009.0 Industrial Interceptors (Clarifiers) and Separa- 
tors. 

1009.1 When Required. Interceptors (clarifiers) (including 
grease, oil, sand interceptors [clarifiers], etc.) shall be re- 
quired by the Authority Having Jurisdiction when they are 
necessary for the proper handling of Hquid wastes containing 
grease, flammable wastes, sand, soHds, acid or alkaline sub- 
stances, or other ingredients harmftil to the building drainage 
system, the public or private sewer, or to public or private 
sewage disposal. 

1009.2 Approval. The size, type, and location of each inter- 
ceptor (clarifier) or separator shall be approved by the Au- 
thority Having Jurisdiction. Except where otherwise 
specifically permitted, no wastes other than those requiring 
treatment or separatioa shall be discharged into any intercep- 
tor (clarifier). 

1009.3 Design. Interceptors (clarifiers) for sand and similar 
heavy solids shall be so designed and located as to be readily 
accessible for cleaning and shall have a water seal of not less 
than six (6) inches (152 mm). 

1009.4 Relief Vent. Interceptors (clarifiers) shall be so de- 
signed that they will not become air-bound if closed covers 
are used. Each interceptor (clarifier) shall be properly vented. 

1009.5 Location. Each interceptor (clarifier) cover shall be 
readily accessible for servicing and maintaining the intercep- 
tor (clarifier) in working and operating condition. The use of 
ladders or the removal of bulky equipment in order to service 
interceptors (clarifiers) shall constitute a violation of acces- 
sibility. Location of all interceptors (clarifiers) shall be shown 
on the approved building plan. 

1009.6 Maintenance of Interceptors. Interceptors shall be 
maintained in efficient operating condition by periodic re- 
moval of accumulated grease, scum, oil, or other floating sub- 
stances and solids deposited in the interceptor. 

1009.7 Discharge. The waste pipe from oil and sand inter- 
ceptors shall discharge as approved by the Authority Having 
Jurisdiction. 



1007.0 Trap Seal Protection. 

Floor drain or similar traps directly connected to the drainage 
system and subject to infrequent use shall be protected with 
a trap seal primer, except where not deemed necessary for 
safety or sanitation by the Authority Having Jurisdiction. Trap 
seal primers shall be accessible for maintenance. 

1008.0 Building Traps. 

Building traps shall not be installed except where required by 
the Authority Having Jurisdiction. Each building trap when 
installed shall be provided with a cleanout and with a reliev- 
ing vent or fresh-air intake on the inlet side of the trap, which 
need not be larger than one-half the diameter of the drain to 
which it connects. Such relieving vent or fresh-air intake shall 
be carried above grade and terminate in a screened outlet lo- 
cated outside the building. 



1010.0 Slaughterhouses, Packing Establishments, etc. 

Every fish, fowl, and animal slaughterhouse or establishment; 
every fish, fowl, and meat packing or curing establishment; 
every soap factory, tallow-rendering, fat-rendering, and hide- 
curing establishment shall be connected to and shall drain or 
discharge into an approved grease interceptor (clarifier). 

1010.1 fAGRJ Meat and Poultry Processing Plants. 

1010.1.1 Drainage and Plumbing Systems. Drainage 
and plumbing systems shall meet the requirements of Sec- 
tion 724.0, 

1010.1.1.1 Each floor drain shall be equipped with 
a deep-seal trap. 

1010.1.2 The plumbing shall be installed so as to prevent 
sewage from backing up and flooding the floor 

Exception: Floor drains in areas not regularly washed 
down will be acceptable with deep-seal traps, provided 



182 



2010 CALIFORNIA PLUMBING CODE 



TRAPS AND INTERCEPTORS 



that such drains are connected to secondary drainage 
systems discharging into a safe sink or basin (air gap) 
that is properly trapped and vented, and that such drains 
accomplish the objectives and intent of this section. 

1010 A, 3 Interceptor traps which are connected with the 
sewer system shall not be near any edible products de- 
partment or in any area where products are unloaded 
from or loaded into vehicles. To facilitate cleaning, such 
traps shall have inclined bottoms and be provided with 
suitable covers, 

1010.2 [AGR] Collection Centers and Facilities. All drains 
shall be properly installed with adequate deep-sealed traps of 
the conventional "P, " ''U" or "S" type and vents. 

1010.3 [AGR] Horse Meat and Pet Food Establishments. 

There shall be an efficient drainage and plumbing system for 
the establishment and premises. All drains and gutters shall 
be installed with traps and vents approved by the Department 

1010.4 [AGR] Draining and Plumbing. There shall be an ef- 
ficient drainage and plumbing system for the plant and prem- 
ises. 

1010.4.1 Drainage and Gutters. All drains and gutters 
shall be properly installed with approved traps and vents. 
The drainage and plumbing system must permit the quick 
runoff of all water from plant buildings, and of surface 
water around the plant on the premises, and all such 
water shall be disposed of in such a manner as to prevent 
a nuisance or health hazard. 

1010.4.2 Sewage and Plant Waste. The sewer system 
have adequate slope and capacity to remove readily all 
waste from the various processing operations and to min- 
imize, or if possible, prevent stoppage and surcharging of 
the system. When the sewage disposal system is a private 
system which is required to be approved by a state or 
local health authority, the applicant shall furnish the ad- 
ministrator a letter from the proper health authority indi- 
cating that the sewage disposal system is acceptable to 
such authority. 

1011.0 Minimum Requirements for Auto Wash Racks. 

Every private or public wash rack and/or floor or slab used for 
cleaning machinery or machine parts shall be adequately pro- 
tected against storm or surface water and shall drain or dis- 
charge into an approved interceptor (clarifier). 

1012.0 Commercial and Industrial Laundries. 

Laundiy equipment in commercial and industrial buildings that 
does not have integral strainers shall discharge into an inter- 
ceptor having a wire basket or similar device that is removable 
for cleaning and that will prevent passage into the drainage sys- 
tem of solids one-half (!/2) inch (12.7 mm) or larger in maxi- 
mum dimension, such as string, rags, buttons, or other solid 
materials detrimental to the public sewerage system. 

1013.0 Bottling Establishments. 

Bottling plants shall discharge their process wastes into an 
interceptor that will provide for the separation of broken glass 



or other solids, before discharging liquid wastes into the 
drainage system. 

1014.0 Grease Interceptors, 

1014.1 Where it is determined by the Authority Having Ju- 
risdiction that waste pretreatment is required, an approved 
type of grease interceptor(s) complying with the provisions of 
this section shall be correctly sized and properly installed in 
grease waste line(s) leading from sinks and drains, such as 
floor drains, floor sinks and other fixtures or equipment in 
serving establishments such as restaurants, cafes, lunch coun- 
ters, cafeterias, bars and clubs, hotels, hospitals, sanitariums, 
factory or school kitchens, or other establishments where 
grease is introduced into the drainage or sewage system in 
quantities that can effect line stoppage or hinder sewage treat- 
ment or private sewage disposal. Any combination of hydro- 
mechanical, gravity grease interceptors and engineered 
systems shall be allowed in order to meet this code and other 
applicable requirements of the Authority Having Jurisdiction 
when space or existing physical constraints of existing build- 
ings necessitate such installations. A grease interceptor shall 
not be required for individual dwelling units or for any private 
living quarters. Water closets, urinals, and other plumbing fix- 
tures conveying human waste shall not drain into or through 
the grease interceptor. 

1014.1A [OSHPD 1,2, 3 & 4] The Authority Having Juris- 
diction the individual official, board, department or agency 
authorized to administer and enforce the sewage treatment 
system in the area of the location of the health facility. 

1014.1B [OSHPD 1,2, 3 & 4] Grease traps shall not be in- 
stalled in food preparation area of the kitchens. 

1014.1C [OSHPD 1,2, 3 & 4] Grease interceptors shall be 
installed outside of the kitchen area in location affording ease 
of maintenance and servicing. 

1014.1.1 Each fixture discharging into a grease inter- 
ceptor shall be individually trapped and vented in an ap- 
proved manner. 

1014.1.2 All grease interceptors shall be maintained in 
efficient operating condition by periodic removal of the 
accumulated grease and latent material. No such col- 
lected grease shall be introduced into any drainage pip- 
ing or public or private sewer. If the Authority Having 
Jurisdiction determines that a grease interceptor is not 
being properly cleaned or maintained, the Authority Hav- 
ing Jurisdiction shall have the authority to mandate the 
installation of additional equipment or devices and to 
mandate a maintenance program. 

1014.1.3 Food Waste Disposal Units and Disliwash- 
ers. Unless specifically required or permitted by the Au- 
thority Having Jurisdiction, no food waste disposal unit 
or dishwasher shall be connected to or discharge into any 
grease interceptor. Commercial food waste disposers 
shall be permitted to discharge directly into the build- 
ing's drainage system. 



2010 CALIFORNIA PLUMBING CODE 



183 



TRAPS AND INTERCEPTORS 



1014.2 Hydromechanical Grease Interceptors. 

1014.2.1 Plumbing fixtures or equipment connected to a 
Type A and B hydromechanical grease interceptor shall 
discharge through an approved type of vented flow con- 
trol installed in a readily accessible and visible location. 
Flow control devices shall be designed and installed so 
that the total flow through such device or devices shall at 

I no time be greater than the rated flow of the connected 
grease interceptor. No flow control device having ad- 
justable or removable parts shall be approved. The 
vented flow control device shall be located such that no 
system vent shall be between the flow control and the 

I grease interceptor inlet. The vent or air inlet of the flow 
control device shall connect with the sanitary drainage 
vent system, as elsewhere required by this code, or shall 
terminate through the roof of the building, and shall not 
terminate to the free atmosphere inside the building. 

Exception: Listed grease interceptors with integral flow 
controls or restricting devices shall be installed in an ac- 
cessible location in accordance with the manufacturers' 
instructions. 

1014.2.2 The total capacity in gallons (L) of fixtures dis- 
charging into any hydromechanical grease interceptor 
shall not exceed two and one-half (iVi) times the certi- 
fied GPM (L/m) flow rate of the interceptor as per Table 
10-2. 

For the purpose of this section, the term "fixture" 
shall mean and include each plumbing fixture, appliance, 
apparatus, or other equipment required to be connected to 



or discharged into a grease interceptor by any provision 
of this section. 

1014.2.3 A vent shall be installed downstream of hydro- 
mechanical grease interceptors in accordance with the 
requirements of this code. 
1014.3 Gravity Grease Interceptors. Required gravity grease 
interceptors shall comply with the provisions of Sections 
1014.3.1 through 1014.3.7. 

1014.3.1 General. The provisions of this section shall 
apply to the design, construction, installation, and testing 
of commercial kitchen gravity grease interceptors. 

1014.3.2 Waste Discharge Requirements. 

1014.3.2.1 Waste discharge in establishments from 
fixtures and equipment which contain grease, includ- 
ing but not limited to, scullery sinks, pot and pan 
sinks, dishwashers, soup kettles, and floor drains lo- 
cated in areas where grease-containing materials 
exist, shall be permitted to be drained into the sanitary 
waste through the interceptor when approved by the 
Authority Having Jurisdiction. 

1014.3.2.2 Toilets, urinals, and other similar fix- 
tures shall not drain through the interceptor. 

1014.3.2.3 All waste shall enter the interceptor through 
the inlet pipe only. 

1014.3.3 Design. 

1014.3.3.1 Gravity Interceptors shall be constructed 
in accordance with the applicable standard in Table 
14-1 or the design approved by the Authority Having 
Jurisdiction. 



TABLE 10-2 
HYDROMECHANICAL INTERCEPTOR SIZING USING GRAVITY FLOW RATES^ 





SIZE OF GREASE INTERCEPTOR 


DIAMETER OF GREASE 
WASTE PIPE 


MAXIMUM FULL PIPE 
FLOW (GPM)2 


ONE-MINUTE DRAINAGE 
PERIOD (GPM) 


TWO-MINUTE DRAINAGE 
PERIOD (GPM) 


2" 


20 


20 


10 


3" 


60 


75 


35 


4" 


125 


150 


75 


5" 


230 


250 


125 


6" 


375 


500 


250 



^ For interceptor sizing by fixture capacity see the example below. 

^ Vi" (.240) slope per foot based on Manning's formula with friction factor N = 0.012 

EXAMPLE FOR SIZING 
HYDROMECHANICAL INTERCEPTOR(S) USING FIXTURE CAPACITY 

Step 1: Determine the flow rate from each fixture. 

[Length] X [Width] X [Depth] / [231] = Gallons X [.75 fill factor] / [Drain Period (1 min or 2 min)] 

Step 2: Calculate the total load from all fixtures that discharge into the interceptor. 



FIXTURES 


COMPARTMENTS 


LOAD (gallons) 


SIZE OF GREASE INTERCEPTOR ONE- 
MINUTE DRAINAGE PERIOD (gpm) 


TWO-MINUTE DRAINAGE PE- 
RIOD (gpm) 


Compartment size 










24"x 24"x 12" 


2 


44.9 






Hydrant 




3 






Rated Appliance 




2 










49.9 


50 


25 



184 



2010 CALIFORNIA PLUMBING CODE 



TRAPS AND INTERCEPTORS 



1014.3.4 Location. 

1014.3.4.1 Each grease interceptor shall be so in- 
stalled and connected that it shall be at all times eas- 
ily accessible for inspection, cleaning, and removal 
of the intercepted grease. A gravity grease interceptor 
complying with lAPMO ZlOOl, Standard for Pre- 
fabricated Gravity Grease Interceptors^ shall not be 
installed in any part of a building where food is han- 
dled. Location of the grease interceptor shall meet the 
approval of the Authority Having Jurisdiction. 

1014.3.4.2 Interceptors shall be placed as close as 
practical to the fixtures they serve. 

1014.3.4.3 Each business estabhshment for which a 
gravity grease interceptor is requh-ed shall have an in- 
terceptor which shall serve only that establishment un- 
less otherwise approved by the Authority Having 
Jurisdiction. 

1014.3.4.4 Each gravity grease interceptor shall be 
located so as to be readily accessible to the equip- 
ment required for maintenance. 

1014.3.5 Construction Requirements. 

1014.3.5.1 Purpose. Gravity grease interceptors shall 
be designed to remove grease from effluent and shall 
be sized in accordance with this section. Gravity 
grease interceptors shall also be designed to retain 
grease until accumulations can be removed by pump- 
ing the interceptor. It is recommended that a sample 
box be located at the outlet end of all gravity grease 
interceptors so that the Authority Having Jurisdiction 
can periodically sample effluent quality. 

1014.3.6 Sizing Criteria. 

1014.3.6.1 Sizing. The volume of the interceptor shall 
be determined by using Table 10-3. If drainage fix- 
ture units (DFUs) are not known, the interceptor shall 
be sized based on the maximum DFUs allowed for 
the pipe size connected to the inlet of the interceptor. 
Refer to Table 7-5, Drainage Piping, Horizontal. 

1014.3.7 Abandoned Gravity Grease Interceptors. 
Abandoned grease interceptors shall be pumped and 
filled as required for abandoned sewers and sewage dis- 
posal facilities in Section 722.0. 

1015.0 FOG (Fats, Oils, and Greases) Disposal System. 

1015.1 Purpose. The purpose of this section is to provide the 
necessary criteria for the sizing, application, and installation 
of FOG disposal systems designated as a pretreatment or dis- 
charge water quality compliance strategy. 

1015.2 Scope. FOG disposal systems shall be considered en- 
gineered systems and shall comply with the requirements of 
Section 301.4 of this code. 

1015.3 Gomponents, Materials, and Equipment. FOG dis- 
posal systems, including all components, materials, and 
equipment necessary for the proper function of the system, 
shall comply with Sections 301.1.3 or 301.2 of this code. 

1015.4 Sizing Application and Installation. FOG disposal sys- 
tems shall be engineered, sized, and installed in accordance with 
the manufacturers' specifications and as specified in ASME 
Al 12. 14.6, Standard for FOG (Fats, Oils, and Greases) Dis- 
posal Systems, as hsted in Chapter 14, Table 14-1 of this code. 



TABLE 10-3 
GRAVITY GREASE INTERCEPTOR SIZING 


DFUS^'^ 


INTERCEPTOR VOLUME^ 


8 


500 gallons 


21 


750 gallons 


35 


1,000 gallons 


90 


1,250 gallons 


172 


1,500 gallons 


216 


2,000 gallons 


307 


2,500 gallons 


342 


3,000 gallons 


428 


4,000 gallons 


576 


5,000 gallons 


720 


7,500 gallons 


2112 


10,000 gallons 


2640 


15,000 gallons 



' The maximum allowable DFUs plumbed to the kitchen drain lines that 
will be connected to the grease interceptor. 

^ This size is based on: DFUs, the pipe size from this code; Table 7-5; 
Useful Tables for flow in half-full pipes (ref: Mohinder Nayyar Piping 
Handbook, 3rd Edition, 1992). Based on 30-minute retention time (ref.: 
George Tchobanoglous and Metcalf & Eddy. Wastewater Engineering 
Treatment, Disposal and Reuse, 3rd Ed. 1991 & Ronald Crites and 
George Tchobanoglous. Small and Decentralized Wastewater Manage- 
ment Systems, 1998). Rounded up to nominal interceptor volume. 

■^ When the flow rate of directly connected fixture(s) or appliance(s) have 
no assigned DFU values, the additional grease interceptor volume shall 
be based on the known flow rate (gpm) multiplied by 30 minutes. 

1015.5 Performance. FOG disposal systems shall be tested 
and certified as listed in Chapter 14, Table 14-1 of this code, 
and other national consensus standards applicable to FOG dis- 
posal systems as discharging a maximum of 100 mg/L FOG. 

1015.6 [OSHPD 1,2, 3 & 4] Grease traps shall not be in- 
stalled in food preparation area of the kitchens, 

101 5 J [OSHPD 1,2,3& 4] Grease Interceptors shall be in- 
stalled outside of the kitchen area in location affording ease 
of maintenance and servicing. 

Gravity Grease Interceptor Sizing Example: 

Given: A restaurant with the following fixtures and equip- 
ment. 

One food preparation sink; three floor drains - one in the food 
prep area, one in the grill area, and one receiving the indirect 
waste from the ice machine and a mop sink. 

BCitchen Drain Line DFU Count (from Table 7-3): 

3 floor drains @ 2 DFUs each = 6 DFUs 

Mop sink @ 3 DFUs each = 3 DFUs 

Food prep sink @ 3 DFUs each = 3 DFUs 

Total 12 DFUs 

Using Table 10-3, the grease interceptor will be sized at 750 
gallons. 



2010 CALIFORNIA PLUMBING CODE 



185 



TRAPS AND INTERCEPTORS 



1016.0 Sand Interceptors. 

1016.1 Where Required. 

1016.1.1 Whenever the discharge of a fixture or drain 
contain solids or semi-solids heavier than water that 
would be harmful to a drainage system or cause a stop- 
page within the system, the discharge shall be through a 
sand interceptor. Multiple floor drains shall be permitted 
to discharge into one sand interceptor. 

1016.1.2 Sand interceptors are required when-ever the 
Authority Having Jurisdiction deems it advisable to have 
a sand interceptor to protect the drainage system. 

1016.2 Construction and Size. Sand interceptors shall be 
built of brick or concrete, prefabricated coated steel, or other 
watertight material. The interceptor shall have an interior baf- 
fle for full separation of the interceptor into two (2) sections. 
The outlet pipe shall be the same size as the inlet pipe of the 
sand interceptor, the minimum being three (3) inches (80 
mm), and the baffle shall have two (2) openings of the same 
diameter as the outlet pipe and at the same invert as the out- 
let pipe. These openings shall be staggered so that there can- 
not be a straight line flow between any inlet pipe and the 
outlet pipe. The invert of the inlet pipe shall be no lower than 
the invert of the outlet pipe. 

The sand interceptor shall have a minimum dimension 
of two (2) feet square (0.19 m^) for the net free opening of 
the inlet section and a minimum depth under the invert of the 
outlet pipe of two (2) feet (610 mm). 

For each five (5) gallons (18.9 L) per minute flow or 
fraction thereof over twenty (20) gallons (75.7 L) per minute, 
the area of the sand interceptor inlet section is to be increased 
by one (1) square foot (0.09 m^). The outlet section shall at all 
times have a minimum area of fifty (50) percent of the inlet 
section. 

The outlet section shall be covered by a solid removable 
cover, set flush with the finished floor, and the inlet section 
shall have an open grating, set flush with the finished floor 
and suitable for the traffic in the area in which it is located. 

1016.3 Separate Use. Sand and similar interceptors for every 
solid shall be so designed and located as to be readily acces- 
sible for cleaning, shall have a water seal of not less than six 
(6) inches (152 nmi), and shall be vented. 

1017.0 Oil and Flammable Liquid Interceptors. 

1017.1 Interceptors Required. All repair garages and gaso- 
line stations with grease racks or grease pits, and all factories 
that have oily, flammable, or both types of wastes as a result 
of manufacturing, storage, maintenance, repair, or testing 
processes, shall be provided with an oil or flammable liquid in- 
terceptor that shall be connected to all necessary floor drains. 
The separation or vapor compartment shall be independently 
vented to the outer air. If two (2) or more separation or vapor 
compartments are used, each shall be vented to the outer air or 
shall be permitted to connect to a header that is installed at a 
minimum of six (6) inches (152 mm) above the spill line of the 
lowest floor drain and vented independently to the outer air. 



The minimum size of a flammable vapor vent shall be not less 
than two (2) inches (50 mm), and, when vented through a side- 
wall, the vent shall be not less than ten (10) feet (3,048 mm) 
above the adjacent level at an approved location. The inter- 
ceptor shall be vented on the sewer side and shall not connect 
to a flammable vapor vent. All oil and flammable interceptors 
shall be provided with gastight cleanout covers that shall be 
readily accessible. The waste line shall be not less than three 
(3) inches (80 mm) in diameter with a full-size cleanout to 
grade. When an interceptor is provided with an overflow, it 
shall be provided with an overflow line (not less than two (2) 
inches (50 mm) in diameter) to an approved waste oil tank 
having a minimum capacity of five-hundred fifty (550) gal- 
lons (2,082 L) and meeting the requirements of the Authority 
Having Jurisdiction. The waste oil from the separator shall 
flow by gravity or shall be pumped to a higher elevation by an 
automatic pump. Pumps shall be adequately sized and acces- 
sible. Waste oil tanks shall have a two (2) inch (50 mm) min- 
imum pump-out connection at grade and a one and one-half 
(V/i) inch (40 mm) minimum vent to atmosphere at an ap- 
proved location not less than ten (10) feet (3,048 mm) above 
grade. 

1017.2 Design of Interceptors. Each manufactured inter- 
ceptor that is rated shall be stamped or labeled by the manu- 
facturer with an indication of its full discharge rate in gpm 
(L/m). The full discharge rate to such an interceptor shall be 
determined at full flow. Each interceptor shall be rated equal 
to or greater than the incoming flow and shall be provided 
with an overflow line to an underground tank. 

Interceptors not rated by the manufacturer shall have a 
depth of not less than two (2) feet (610 mm) below the invert 
of the discharge drain. The outlet opening shall have not less 
than an eighteen (18) inch (457 mm) water seal and shall have 
a minimum capacity as follows: Where not more than three 
(3) motor vehicles are serviced and/or stored, interceptors 
shall have a minimum capacity of six (6) cubic feet (0.17 m^), 
and one (1) cubic foot (0.03 m^) of capacity shall be added for 
each vehicle up to ten (10) vehicles. Above ten (10) vehicles, 
the Authority Having Jurisdiction shall determine the size of 
the interceptor required. Where vehicles are serviced only and 
not stored, interceptor capacity shall be based on a net ca- 
pacity of one (1) cubic foot (0.03 m^) for each one-hundred 
(100) square feet (9.29 m^) of surface to be drained into the 
interceptor, with a minimum of six (6) cubic feet (0.17 m^). 



186 



2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 11 - STORM DRAINAGE 



Adopting Agency 


BSC 


SFM 


HOD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


SS 


SS/CC 


1 


2 


3 


4 












Adopt Entire Chapter 














X 


X 




















Adopt Entire Chapter as 
amended (amended sections 
Usted below) 


X 




X 


X 










X 


X 


X 


X 












Adopt only those sections 
that are Hsted below 




































Chapter/Section 


1101.3 


X 




X 


X 




























1101.3.1 


















X 


X 


X 


X 












1101.5.1 Exception 






X 


X 




























1102.1.2 






X 


X 




























1102.1.2.1 


















X 


X 


X 


X 













2010 CALIFORNIA PLUMBING CODE 



187 



1 88 201 CALIFORNIA PLUMBING CODE 



CHAPTER 11 
STORM DRAINAGE 



1101.0 General. 

1101.1 Where Required. Roofs, paved areas, yards, courts, 
and courtyards shall be drained into a separate storm sewer 
system, or into a combined sewer system where a separate 
storm sewer system is not available, or to some other place of 
disposal satisfactory to the Authority Having Jurisdiction. In 
the case of one- and two-family dwellings, storm water shall 
be permitted to be discharged on flat areas, such as streets or 
lawns, so long as the storm water shall flow away from the 
building and away from adjoining property, and shall not cre- 
ate a nuisance. 

1101.2 Storm Water Drainage to Sanitary Sewer Prohib- 
ited. Storm water shall not be drained into sewers intended 
for sanitary drainage only. 

1101.3 Material Uses. Rainwater piping placed within the 
interior of a building or run within a vent or shaft shall be of 
cast-iron, galvanized steel, wrought iron, brass, copper, lead. 
Schedule 40 ABS DWV, Schedule 40 PVC DWV, stainless 
steel 304 or 316L (stainless steel 304 pipe and fittings shall 
not be installed underground and shall be kept not less than 
six (6) inches (152 mm) above ground), or other approved 
materials, and changes in direction shall conform to the re- 
quirements of Section 706.0. ABS and PVC DWV piping in- 

I stallations shall be installed in accordance with IS 5 and IS 9. 
Except for individual single-family dwelling units, materials 
exposed within ducts or plenums shall have a flame-spread 
index of a maximum of twenty-five (25) and a smoke-devel- 
oped index of a maximum of fifty (50), when tested in ac- 
cordance with the Test for Surface-Burning Characteristics 
of the Building Materials (see the Building Code standards 
based on ASTM E 84 and UL 723.). 

[HCD 1 & HCD 2] ABS or PVC installations are limited to 
not more than two stories of areas of residential accommo- 
dation. 

1101.3.1 [OSHPD h2,3& 4] ABS and PVC installa- 
tions are not allowed. 

1101.4 Expansion Joints Required. Expansion joints or 
sleeves shall be provided where warranted by temperature 
variations or physical conditions. 

1101.5 Subsoil Drains. 

1101.5.1 Subsoil drains shall be provided around the 
perimeter of buildings having basements, cellars, crawl 
spaces or floors below grade. Such subsoil drains shall be 
permitted to be positioned inside or outside of the footing, 
shall be of perforated or open-jointed approved drain tile 
or pipe, not less than three (3) inches (80 mm) in diame- 
ter, and shall be laid in gravel, slag, crushed rock, approved 
three-quarter QA) inch (19.1 mm) crushed, recycled glass 
aggregate, or other approved porous material with not less 
than four (4) inches (102 mm) surrounding the pipe on all 
sides. Filter media shall be provided for exterior subsoil 
piping. 



Exception: [HCD 1 & HCD 2] Subsoil drains are manda- 
tory only when required by the Authority Having Jurisdic- 
tion due to geological conditions. 

1101.5.2 Subsoil drains shall be piped to a storm drain, 
to an approved water course, to the front street curb or 
gutter, to an alley, or the discharge from the subsoil 
drains shall be conveyed to the alley by a concrete gut- 
ter. Where a continuously flowing spring or groundwater 
is encountered, subsoil drains shall be piped to a storm 
drain or an approved water course. 

1101.5.3 Where it is not possible to convey the drainage 
by gravity, subsoil drains shall discharge to an accessible 
sump provided with an approved automatic electric 
pump. The sump shall be not less than fifteen (15) inches 
(381 mm) in diameter, eighteen (18) inches (457 mm) in 
depth, and provided with a fitted cover. The sump pump 
shall have an adequate capacity to discharge all water 
coming into the sump as it accumulates to the required 
discharge point, and the capacity of the pump shall be 
not less than fifteen (15) gpm (56.8 L/m). The discharge 
piping from the sump pump shall be not less than of one 
and one-half (1 ^2) inches (40 mm) in diameter and have 
a union or other approved quick-disconnect assembly to 
make the pump accessible for servicing. 

1101.5.4 For separate dwellings not serving continuously 
flowing springs or groundwater, the sump discharge pipe 
shall be permitted to discharge onto a concrete splash 
block with a minimum length of twenty- four (24) inches 
(610 mm). This pipe shall be within four (4) inches (102 
mm) of the splash block and positioned to direct the flow 
parallel to the recessed line of the splash block. 

1101.5.5 Subsoil drains subject to backflow when dis- 
charging into a storm drain shall be provided with a back- 
water valve in the drain line so located as to be accessible 
for inspection and maintenance. 

1101.5.6 Nothing in Section 1101.5 shall prevent drains 
that serve either subsoil drains or areaways of a detached 
building from discharging to a properly graded open 
area, provided that: 

(1) They do not serve continuously flowing springs or 
groundwater; 

(2) The point of discharge is not less than ten (10) feet 
(3,048 mm) from any property line; and 

(3) It is impracticalple to discharge such drains to a 
storm drain, to an approved water course, to the 
front street curb or gutter, or to an alley. 

1101.6 Building Subdrains. Building subdrains located 
below the public sewer level shall discharge into a sump or re- 
ceiving tank, the contents of which shall be automatically 
lifted and discharged into the drainage system as required for 
building sumps. 



2010 CALIFORNIA PLUMBING CODE 



189 



STORM DRAINAGE 



1101.7 Areaway Drains. Open subsurface space adjacent to 
a building, serving as an entrance to the basement or cellar of 
a building, shall be provided with a drain or drains. Such 
areaway drains shall be not less than two (2) inches (50 mm) 
in diameter for areaways at a maximum of one-hundred (100) 
square feet (9.3 m^) in area, and shall be discharged in the 
manner provided for subsoil drains not serving continuously 
flowing springs or groundwater (See Section 1101.5.2). 
Areaways in excess of one-hundred (100) square feet (9.3 m^) 
shall not drain into subsoil drains. Areaway drains for 
areaways exceeding one-hundred (100) square feet (9.3 m^) 
shall be sized according to Table 11-2. 

1101.8 Window Areaway Drains. Window areaways at a 
maximum often (10) square feet (0.9 m^) in area shall be per- 
mitted to discharge to the subsoil drains through a two (2) 
inch (50 mm) pipe. However, window areaways exceeding 
ten (10) square feet (0.9 m^) in area shall be handled in the 
manner provided for entrance areaways (See Section 1 101.7). 

1101.9 Filling Stations and Motor Vehicle Washing Es- 
tablishments. Public filling stations and motor vehicle wash- 
ing establishments shall have the paved area sloped toward 
sumps or gratings within the property lines. Curbs not less 
than six (6) inches (152 mm) high shall be placed where re- 
quired to direct water to gratings or sumps. 

1101.10 Paved Areas. Where the occupant creates surface 
water drainage, the sumps, gratings, or floor drains shall be 
piped to a storm drain or an approved water course. 

1101.11 Roof Drainage. 

1101.11.1 Primary Roof Drainage. Roof areas of a 
building shall be drained by roof drains or gutters. The 
location and sizing of drains and gutters shall be coordi- 
nated with the structural design and pitch of the roof Un- 
less otherwise required by the Authority Having 
Jurisdiction, roof drains, gutters, vertical conductors or 
leaders, and horizontal storm drains for primary drainage 
shall be sized based on a storm of sixty (60) minutes du- 
ration and one-hundred (100) year retum period. Refer 
to Table D-1 (in Appendix D) for one-hundred (100) 
year, sixty (60) minute storms at various locations. 

1101.11.2 Secondary drainage. Secondary (emergency) 
roof drainage shall be provided by one (1) of the meth- 
ods specified in Section 1101.11.2.1 or 1101.11.2.2. 

1101.11.2.1 Roof Scuppers or Open Side, Sec- 
ondary roof drainage shall be provided by an open- 
sided roof or scuppers where the roof perimeter 
construction extends above the roof in such a man- 
ner that water will be entrapped. An open-sided roof 
or scuppers shall be sized to prevent the depth of 
ponding water from exceeding that for which the 
roof was designed as determined by Section 
1101.11.1. Scupper openings shall be not less than of 
four (4) inches (102 mm) high and have a width 
equal to the circumference of the roof drain required 
for the area served, sized by Table 11-1. 

1101.11.2.2 Secondary Roof Drain. Secondary roof 
drains shall be provided. The secondary roof drains 
shall be located not less than two (2) inches (5 1 mm) 
above the roof surface. The maximum height of the 



roof drains shall be a height to prevent the depth of 
ponding water from exceeding that for which the roof 
was designed as determined by Section 1101.11.1. The 
secondary roof drains shall connect to a piping system 
conforming to Section 1101.11.2.2.1 or 1101.11.2.2.2. 

1101.11.2.2.1 Separate Piping System. The sec- 
ondary roof drainage system shall be a separate 
system of piping, independent of the primary roof 
drainage system. The discharge shall be above 
grade, in a location observable by the building oc- 
cupants or maintenance personnel. Secondary 
roof drain systems shall be sized in accordance 
with Section 1101.11.1 based on the rainfall rate 
for which the primary system is sized. 

1101.11.2.2.2 Combined System. The second- 
ary roof drains shall connect to the vertical pip- 
ing of the primary storm drainage conductor 
downstream of any horizontal offset below the 
roof. The primary storm drainage system shall 
connect to the building storm water that con- 
nects to an underground public storm sewer. 
The combined secondary and primary roof 
drain systems shall be sized in accordance with 
Section 1 106.0 based on double the rainfall rate 
for the local area. 

1101.12 Cleanouts. 

1101.12.1 Cleanouts for building storm drains shall com- 
ply with the requirements of Section 719.0 of this code. 

1101.12.2 Rain leaders and conductors connected to a 
building storm sewer shall have a cleanout installed at 
the base of the outside leader or outside conductor be- 
fore it connects to the horizontal drain. 

1101.13 Rainwater sumps serving "public use" occupancy 
buildings shall be provided with dual pumps arranged to func- 
tion alternately in case of overload or mechanical failure. 

1102.0 Materials. 

1102.1 Conductors. 

1102.1.1 Conductors installed above ground in buildings 
shall be in accordance with the applicable standards ref- 
erenced in Table 7- 1 for above ground drain, waste and 
vent pipe. 

1102.1.2 The inside of conductors installed above ground 
level shall be of seamless copper water tube, Type K, L, 
or M; Schedule 40 copper pipe or Schedule 40 copper 
alloy pipe; Type DWV copper drainage tube; service 
weight cast-iron soil pipe or hubless cast-iron soil pipe; 
standard weight galvanized steel pipe; stainless steel 304 
or 3 16L (stainless steel 304 pipe and fittings shall not be 
installed underground and shall be kept not less than (6) 
inches (152 mm) above ground); or Schedule 40 ABS or 
Schedule 40 PVC plastic pipe. 

[HCD 1 & HCD 2] ABS or P VC installations are limited to 
not more than two stories of areas of residential accommo- 
dation. 

1102.L2J [OSHPD U2,3& 4] ABS and PVC instal- 
lations are not allowed. 



190 



2010 CALIFORNIA PLUMBING CODE 



STORM DRAINAGE 



1102.2 Leaders. 

1102.2.1 Leaders installed outside shall be in accordance 
with the applicable standards referenced in Table 7-1 for 
above ground drain, waste and vent pipe; aluminum sheet 
metal; galvanized steel sheet metal; or copper sheet 
metal. 

1102.3 Underground Building Storm Drains. Underground 
building storm drains shall be in accordance with the appli- 
cable standards referenced in Table 7-1 for underground 
drain, waste and vent pipe. 

1102.4 Building Storm Sewers. Building storm sewers shall 
be in accordance with the applicable standards referenced in 
Table 7-1 for building sewer pipe. 

1102.5 Subsoil Drains. 

1102.5.1 Subsoil drains shall be constructed of materials 
specified in Table 14-1. 

1102.5.2 Subsoil drains shall be open-jointed or of per- 
forated pipe, vitrified clay, plastic, cast-iron, or porous 
concrete. 



1103.0 Traps on Storm Drains and Leaders. 

1103.1 Where Required. Leaders and storm drains, when 
connected to a combined sewer, shall be trapped. Floor and 
area drains connected to a storm drain shall be trapped. 

Exception: Traps shall not be required where roof drains, rain 
leaders, and other inlets are at locations allowed under Section 
906.0, Vent Termination. 

1103.2 Where Not Required. No trap shall be required for 
leaders or conductors that are connected to a sewer carrying 
storm water exclusively. 

1103.3 Trap Size. Traps, when installed for individual con- 
ductors, shall be the same size as the horizontal drain to which 
they are connected. 

1103.4 Method of Installation of Combined Sewer, Indi- 
vidual storm- water traps shall be installed on the storm- water 
drain branch serving each storm-water inlet, or a single trap 
shall be installed in the main storm drain just before its con- 
nection with the combined building sewer. Such traps shall 
be provided with an accessible cleanout on the outlet side of 
the trap. 

1104.0 Leaders, Conductors, and Connections. 

1104.1 Improper Use. Leaders or conductors shall not be 
used as soil, waste, or vent pipes nor shall soil, waste, or vent 
pipes be used as leaders or conductors. 

1104.2 Protection of Leaders. Leaders installed along alley- 
ways, chiveways, or other locations where exposed to damage 
shall be protected by metal guards, recessed into the wall, or 
constructed from ferrous pipe. 

1104.3 Combining Storm with Sanitary Drainage. The 

sanitary and storm drainage system of a building shall be en- 
tirely separate, except where a combined sewer is used, in 
which case the building storm drain shall be connected in the 
same horizontal plane through single wye fittings to the com- 
bined building sewer not less than ten (10) feet (3,048 mm) 
downstream from any soil stack. 



1105.0 Roof Drains. 

1105.1 Material. 

1105.1.1 Roof drains shall be constructed of materials 
specified in Table 14-1 . 

1105.1.2 Roof drains shall be of cast-iron, copper or cop- 
per alloy, lead, or plastic. 

1105.2 Dome or Strainer for General Use. Roof drains and 
overflow drains, except those draining to hanging gutters, shall 
be equipped with strainers extending not less than four (4) 
inches (102 mm) above the surface of the roof immediately ad- 
jacent to the drain. Strainers shall have a minimum inlet area 
above the roof level not less than one and one-half (iVi) times 
the area of the conductor or leader to which the drain is con- 
nected. 

1105.3 Strainers for Flat Decks. Roof drain strainers for use 
on sun decks, parking decks, and similar areas that are nor- 
mally serviced and maintained, shall be permitted to be of the 
flat surface type. Such roof drain strainers shall be level with 
the deck and shall have an available inlet area of not less than 
two (2) times the area of the conductor or leader to which the 
drain is connected. 

1105.4 Roof Drain Flashings. Connection between the roof 
and roof drains that pass through the roof and into the interior 
of the building shall be made water tight by the use of proper 
flashing material. 

1105.4.1 Where lead flashing material is used, it shall be 
not less than four (4) pounds per square foot (19.5 kg/m^). 

1105.4.2 Where copper flashing material is used, it shall 
be not less than twelve (12) ounces per square foot (3.7 
kg/m2). 

1106.0 Size of Leaders, Conductors, and Storm Drains. 

1106.1 Vertical Conductors and Leaders. Vertical conduc- 
tors and leaders shall be sized on the basis of the maximum 
projected roof area and Table 11-1. 

1106.2 Size of Horizontal Storm Drains and Sewers. The 

size of building storm drains or building storm sewers or any 
of their horizontal branches shall be based upon the maximum 
projected roof or paved area to be handled and Table 11-2. 

1106.3 Size of Roof Gutters. The size of semi-circular gut- 
ters shall be based on the maximum projected roof area and 
Table 11-3. 

1106.4 Side Walls Draining onto a Roof. Where vertical 
walls project above a roof so as to permit storm water to drain 
to the roof area below, the adjacent roof area shall be permit- 
ted to be computed from Table 11-1 as follows: 

(1) For one (1) wall - add 50 percent of the wall area to the 
roof area figures. 

(2) For two (2) adj acent walls of equal height - add 3 5 percent | 
of the total wall areas. 

(3) For two (2) adjacent walls of unequal height ~ add 35 per- 1 
cent of the total common height and add 50 percent of the I 
remaining height of the highest wall. I 

(4) Two (2) opposite walls of same height - add no additional 
area. 



2010 CALIFORNIA PLUMBING CODE 



191 



STORM DRAINAGE 



(5) Two (2) opposite walls of differing heights - add 5 percent 
of the wall area above the top of lower wall. 

(6) Walls on three (3) sides - add 50 percent of the area of the 
inner wall below the top of the lowest wall, plus allowance 
for the area of the wall above the top of the lowest wall, 

I per (3) and (5) above. 

(7) Walls on four (4) sides - no allowance for wall areas below 
the top of the lowest wall - add for areas above the top of 

I the lowest wall per (1), (3), (5), and (6) above. 

1107.0 Values for Continuous Flow. 

Where there is a continuous or semi-continuous discharge 
into the building storm drain or building storm sewer, as from 
a pump, ejector, air-conditioning plant, or similar device, one 
(1) gpm (3.8 L/min.) of such discharge shall be computed as 
being equivalent to twenty- four (24) square feet (2.2 m^) of 
roof area, based upon a rate of rainfall of four (4) inches (102 
mm) per hour. 

1108.0 ControUed-Flow Roof Drainage. 

1108.1 Application. In Heu of sizing the storm drainage sys- 
tem in accordance with Section 1106.0, the roof drainage 
shall be permitted to be sized on the basis of controlled flow 
and storage of the storm water on the roof, provided the fol- 
lowing conditions are met: 

( 1 ) The water from a twenty-five (25) year-frequency storm 
shall not be stored on the roof exceeding twenty-four (24) 
hours. 

(2) During the storm, the water depth on the roof shall not 
exceed the depths specified in Table 11-4. 

TABLE 11-4 
CONTROLLED-FLOW MAXIMUM ROOF WATER DEPTH 



ROOF RISE* 


MAX WATER DEPTH AT DRAIN 


Inches 


(mm) 


Inches 


(mm) 


Flat 


(Flat) 


3 


(76) 


2 


(51) 


4 


(102) 


4 


(102) 


5 


(127) 


6 


(152) 


6 


(152) 



Vertical measurement from the roof surface at the drain to the highest 
point of the roof surface served by the drain, ignoring any local depres- 
sion immediately adjacent to the drain. 



(3) No less than two (2) drains shall be installed in roof areas 
often thousand (10,000) square feet (929.0 m^) or less, 
and no less than one (1) additional drain shall be installed 
for each ten thousand (10,000) square feet (929.0 m^) of 
roof area exceeding ten thousand (10,000) square feet 
(929.0 m^). 

(4) Each roof drain shall have a precalibrated, fixed (nonad- 
justable), and proportional weir (notched) in a standing 
water collar inside the strainer. No mechanical devices 
or valves shall be allowed, 

(5) Pipe sizing shall be based on the pre-calibrated rate of 
flow (gpm) of the pre-calibrated weir for the maximum 
allowable water depth, and Tables 11-1 and 11-2. 



(6) The height of stones or other granular material above the 
waterproofed surface shall not be considered in water depth 
measurement, and the roof surface in the vicinity of the 
drain shall not be recessed to create a reservoir. 

(7) Roof design, where controlled-flow roof drainage is used, 
shall be such that the design roof live load is not less than 
thirty (30) pounds per square foot (146.5 kg/m^) to provide 
a safety factor exceeding the fifteen (15) pounds per square 
foot (73.2 kg/m^) represented by the depth of water stored 
on the roof as indicated in Table 11-4. 

(8) Scuppers shall be provided in parapet walls. The dis- 
tance of scupper bottoms above the roof level at the 
drains shall not exceed the maximum distances speci- 
fied in Table 11-5. 

TABLE 11-5 
DISTANCE OF SCUPPER BOTTOMS ABOVE ROOF 



ROOF RISE* 


ABOVE ROOF LEVEL AT DRAIN 


Inches 


(mm) 


Inches 


(mm) 


Flat 


(Flat) 


3 


(76) 


2 


(51) 


4 


(102) 


4 


(102) 


5 


(127) 


6 


(152) 


6 


(152) 



* Vertical measurement from the roof surface at the drain to the highest 
point of the roof surface served by the drain, ignoring any local de- 
pression immediately adjacent to the drain. 

(9) Scupper openings shall be not less than four (4) inches high 
and have a width equal to the circumference of the roof 
drain required for the area served, sized by Table 11-1. 

(10) Flashings shall extend above the top of the scuppers. 

(11) At any wall or parapet, 45 degree (0.79 rad) cants shall be 
installed. 

(12) Separate storm and sanitary drainage systems shall be pro- 
vided within the building. 

(13) Calculations for the roof drainage system shall be submit- 
ted along with the plans to the Authority Having Jurisdic- 
tion for approval. 

1108.2 Setback Roofs. Drains on setback roofs shall be per- 
mitted to be connected to the controlled-flow drainage systems 
provided: 

(1) The setback is designed for storing water, or 

(2) The square footage of the setback drainage area is con- 
verted as outlined in Section 1 108.0 to gpm, and the storm- 
water pipe sizes in the controlled-flow system are based on 
the sum of the loads. 

(3) The branch from each of the roof drains that are not pro- 
vided with controlled flow shall be sized in accordance 
with Table 11-1. 

1109.0 Testing. 

1109.1 Testing Required. New building storm drainage sys- 
tems and parts of existing systems that have been altered, ex- 
tended, or repaired shall be tested as described in Section 
1109.2.1 or 1109.2.2 to disclose leaks and defects. 



192 



2010 CALIFORNIA PLUMBING CODE 



STORM DRAINAGE 



1109.2 Methods of Testing Storm Drainage Systems. Ex- 
cept for outside leaders and perforated or open-jointed drain 
tile, the piping of storm drain systems shall be tested upon 
completion of the rough piping installation by water or air, 
I except that plastic pipe shall not be tested with air, and proved 
tight. The Authority Having Jurisdiction shall be permitted to 
require the removal of any cleanout plugs to ascertain whether 
the pressure has reached parts of the system. One (1) of the 
following test methods shall be used: 

1109.2,1 Water Test. After piping has been installed, the 
water test shall be applied to the drainage system, either 
to the entire system or to sections. If the test is applied to 
the entire system, all openings in the piping shall be 
tightly closed except for the highest opening, and the sys- 
tem shall be filled with water to the point of overflow. If 
the system is tested in sections, each opening shall be 
tightly plugged except for the highest opening of the sec- 
tion under test, and each section shall be filled with 
water, but no section shall be tested with less than a ten 
(10) foot (3,048 mm) head of water. In testing succes- 
sive sections, not less than the upper ten (10) feet (3,048 
mm) of the next preceding section shall be tested so that 
no joint of pipe in the building (except the uppermost ten 
(10) feet (3,048 mm) of a roof drainage system, which 
shall be filled with water to the flood level of the upper- 
most roof drain) shall have been submitted to a test of 
less than a ten (10) foot (3,048 mm) head of water. The 



water shall be kept in the system or in the portion under 
test for not less than fifteen (15) minutes before inspec- 
tion starts; the system shall then be tight at all points. 

1109.2.2 Air Test The air test shall be made by attach- 
ing an air compressor testing apparatus to any suitable 
opening after closing other inlets and outlets to the sys- 
tem, forcing air into the system until there is a uniform 
gauge pressure of five (5) psi (34.5 kPa) or sufficient 
pressure to balance a column of mercury ten (10) inches 
(254 mm) in height. This pressure shall be held without 
introduction of additional air for a period of not less than 
fifteen (15) minutes. | 

1109.2.3 Exceptions. When circumstances exist that 
make air and water tests described in Sections 1109.2.1 
and 1109.2.2 above impractical, see Section 103.5.3.3. 









TABLE 11-1 
SIZING ROOF DRAINS, LEADERS, AND VERTICAL RAINWATER PIPING' ' 








SIZE OF DRAIN, 
LEADER, OR 
PIPE, FLOW 

Inches gpm^ 


MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS SQUARE FEET AT VARIOUS RAINFALL RATES 


1in./h 


2in./h 


3in7h 


4 ln./h 


5in7h 


6m7h 


7 in./h 


8 in./h 


9inJh 


10m7h 


11 in./h 


12 in./h 


2 


30 


2,880 


1,440 


960 


720 


575 


480 


410 


360 


320 


290 


260 


240 


3 


92 


8,800 


4,400 


2,930 


2,200 


1,760 


1,470 


1,260 


1,100 


980 


880 


800 


730 


4 


192 


18,400 


9,200 


6,130 


4,600 


3,680 


3,070 


2,630 


2,300 


2,045 


1,840 


1,675 


1,530 


5 


360 


34,600 


17,300 


11,530 


8,650 


6,920 


5,765 


4,945 


4,325 


3,845 


3,460 


3,145 


2,880 


6 


563 


54,000 


27,000 


17,995 


13,500 


10,800 


9,000 


7,715 


6,750 


6,000 


5,400 


4,910 


4,500 


8 


1,208 


116,000 


58,000 


38,660 


29,000 


23,200 


19,315 


16,570 


14,500 


12,890 


11,600 


10,545 


9,600 


TABLE 11-1 (Metric) 
SIZING ROOF DRAINS, LEADERS, AND VERTICAL RAINWATER PIPING^-^ 


SIZE OF DRAIN, 
LEADER PIPE, 

FLOW 
mm L/s^ 


MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS OR SQUARE METERS AT VARIOUS RAINFALL RATES 


25mm/h 


50mm/h 


75 mm/h 


100 mm/h 


125 mm/h 


150 mm/h 


175 mm/h 


200 mm/h 


225 mm/h 


250 mm/h 


275 mm/h 


300 mm/h 


50 


1.2 


267.6 


133.8 


89.2 


66.9 


53.4 


44.6 


38.1 


33.4 


29.7 


26.9 


24.2 


22.3 


80 


5.8 


817.5 


408.8 


272.2 


204.4 


163.5 


136.6 


117.1 


102.2 


91.0 


81.8 


74.3 


67.8 


100 


12.1 


1,709.4 


854.7 


569.5 


427.3 


341.8 


285.2 


244.3 


213.7 


190.0 


170.9 


155.6 


142.1 


125 


22.7 


3,214.3 


1,607.2 


1,071.1 


803.6 


642.9 


535.6 


459.4 


401.8 


357.2 


321.4 


292.2 


267.6 


150 


35.5 


5,016.6 


2,508.3 


1,671.7 


1,254.2 


1,003.3 


836.1 


716.7 


627.1 


557.4 


501.7 


456.1 


418.1 


200 


76.2 


10,776.4 


5,388.2 


3,591.5 


2,694.1 


2,155.3 


1,794.4 


1,539.4 


1,347.1 


1,197.5 


1,077.6 


9,79.6 


897.4 



Notes: 

^ Maximum discharge capacity, gpm (L/s) with approximately 1% inch (44 mm) head of water at the drain. 

^ For rainfall rates other than those listed, determine the allowable roof area by dividing the area given in the 1 -inch/hour (25 mm/hour) column by the de- 
sired rainfall rate. 

^ Vertical piping may be round, square, or rectangular. Square pipe shall be sized to enclose its equivalent roundpipe. Rectangular pipe shall have not less than 
the same cross-sectional area as its equivalent round pipe, except that the ratio of its side dimensions shall not exceed 3 to 1. 



2010 CALIFORNIA PLUMBING CODE 



193 



STORM DRAINAGE 



TABLE 11-2 
SIZING OF HORIZONTAL RAINWATER PIPING^ 2 



SIZE OF PIPE, 
Inches 


FLOW AT 1/8 
Inyft. SLOPE, gpm 


MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS SQUARE FEET AT VARIOUS RAINFALL RATES 


1 in./h 


2 in./h 


3 in./h 


4in7h 


Sin^h 


6 in./h 


3 


34 


3,288 


1,644 


1,096 


822 


657 


548 


4 


78 


7,520 


3,760 


2,506 


1,880 


1,504 


1,253 


5 


139 


13,360 


6,680 


4,453 


3,340 


2,672 


2,227 


6 


222 


21,400 


10,700 


7,133 


5,350 


4,280 


3,566 


8 


478 


46,000 


23,000 


15,330 


11,500 


9,200 


7,670 


10 


860 


82,800 


41,400 


27,600 


20,700 


16,580 


13,800 


12 


1,384 


133,200 


66,600 


44,400 


33,300 


26,650 


22,200 


15 


2,473 


238,000 


119,000 


79,333 


59,500 


47,600 


39,650 




SIZE OF PIPE. 
Inches 


FLOW AT 1/4 
inTft. SLOPE, gpm 


MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS SQUARE FEET AT VARIOUS RAINFALL RATES 


1 in./h 


2 ln./h 


3 ln./h 


4 ln./h 


5\nJh 


6 in./h 


3 


48 


4,640 


2,320 


1,546 


1,160 


928 


773 


4 


110 


10,600 


5,300 


3,533 


2,650 


2,120 


1,766 


5 


196 


18,880 


9,440 


6,293 


4,720 


3,776 


3,146 


6 


314 


30,200 


15,100 


10,066 


7,550 


6,040 


5,033 


8 


677 


65,200 


32,600 


21,733 


16,300 


13,040 


10,866 


10 


1,214 


116,800 


58,400 


38,950 


29,200 


23,350 


19,450 


12 


1,953 


188,000 


94,000 


62,600 


47,000 


37,600 


31,350 


15 


3,491 


336,000 


168,000 


112,000 


84,000 


67,250 


56,000 




SIZE OF PIPE, 
Inches 


FLOW AT 1/2 
inJn. SLOPE, gpm 


MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS SQUARE FEET AT VARIOUS RAINFALL RATES 


1 in./h 


2 in./h 


3in./h 


4in./h 


5 in./h 


6 in./h 


3 


68 


6,576 


3,288 


2,192 


1,644 


1,310 


1,096 


4 


156 


15,040 


7,520 


5,010 


3,760 


3,010 


2,500 


5 


278 


26,720 


13,360 


8,900 


6,680 


5,320 


4,450 


6 


445 


42,800 


21,400 


14,267 


10,700 


8,580 


7,140 


8 


956 


92,000 


46,000 


30,650 


23,000 


18,400 


15,320 


10 


1,721 


165,600 


82,800 


55,200 


41,400 


33,150 


27,600 


12 


2,768 


266,400 


133,200 


88,800 


66,600 


53,200 


44,400 


15 


4,946 


476,000 


238,000 


158,700 


119,000 


95,200 


79,300 



Notes: 

1 



The sizing data for horizontal piping are based on the pipes flowing full. 

For rainfall rates other than those listed, determine the allowable roof area by dividing the area given in the one (1) inch/hour (25 mm/hour) column by the 

desired rainfall rate. 



194 



2010 CALIFORNIA PLUMBING CODE 



STORM DRAINAGE 



TABLE 11-2 (Metric) 
SIZING OF HORIZONTAL RAINWATER PIPING^ ^ 



SIZE OF PIPE, 
mm 


FLOW AT 10 
mm/m SLOPE, Us 


MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS SQUARE METERS AT VARIOUS RAINFALL RATES 


25mm/h 


50 mm/h 


75 mm/h 


100 mm/h 


125 mm/h 


150 mm/h 


80 


2.1 


305 


153 


102 


76 


61 


51 


100 


4.9 


700 


350 


233 


175 


140 


116 


125 


8.8 


1,241 


621 


414 


310 


248 


207 


150 


14.0 


1,988 


994 


663 


497 


398 


331 


200 


30.2 


4,273 


2,137 


1,424 


1,068 


855 


713 


250 


54.3 


7,692 


3,846 


2,564 


1,923 


1,540 


1,282 


300 


87.3 


12,375 


6,187 


4,125 


3,094 


2,476 


2,062 


375 


156.0 


22,110 


11,055 


7,370 


5,528 


4,422 


3,683 




SIZE OF PIPE, 
mm 


FLOW AT 20 
mm/m SLOPE, L/s 


MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS SQUARE METERS AT VARIOUS RAINFALL RATES 


25mm/h 


50 mm/h 


75 mm/h 


100 mm/h 


125 mm/h 


150 mm/h 


80 


3.0 


431 


216 


144 


108 


86 


72 


100 


6.9 


985 


492 


328 


246 


197 


164 


125 


12.4 


1,754 


877 


585 


438 


351 


292 


150 


19.8 


2,806 


1,403 


935 


701 


561 


468 


200 


42.7 


6,057 


3,029 


2,019 


1,514 


1,211 


1,009 


250 


76.6 


10,851 


5,425 


3,618 


2,713 


2,169 


1,807 


300 


123.2 


17,465 


8,733 


5,816 


4,366 


3,493 


2,912 


375 


220.2 


31,214 


15,607 


10,405 


7,804 


6,248 


5,202 




SIZE OF PIPE, 
mm 


FLOW AT 40 
mm/m SLOPE, Us 


MAXIMUM ALLOWABLE HORIZONTAL PROJECTED ROOF AREAS SQUARE METERS AT VARIOUS RAINFALL RATES 


25 mm/h 


50 mm/h 


75 mm/h 


100 mm/h 


125 mm/h 


150 mm/h 


80 


4.3 


611 


305 


204 


153 


122 


102 


100 


9.8 


1,400 


700 


465 


350 


280 


232 


125 


17.5 


2,482 


1,241 


827 


621 


494 


413 


150 


28.1 


3,976 


1,988 


1,325 


994 


797 


663 


200 


60.3 


8,547 


4,273 


2,847 


2,137 


1,709 


1,423 


250 


108.6 


15,390 


7,695 


5,128 


3,846 


3,080 


2,564 


300 


174.6 


24,749 


12,374 


8,250 


6,187 


4,942 


4,125 


375 


312.0 


44,220 


22,110 


14,753 


11,055 


8,853 


7,367 



Notes: 



^ The sizing data for horizontal piping are based on the pipes flowing full. 
For rainfall rates other than those listed, determine the allowable roof area by dividing the area given in the one (1) inch/hour (25 mm/hour) column by the 
desired rainfall rate. 



2010 CALIFORNIA PLUMBING CODE 



195 



STORM DRAINAGE 



TABLE 11-3 
SIZE OF GUTTERS 



DIAMETER OF GUTTER IN 

INCHES 

1/16 in./ft. SLOPE 


MAXIMUM RAINFALL IN INCHES PER HOUR 


2 


3 


4 


5 


6 


3 


340 


226 


170 


136 


113 


4 


720 


480 


360 


288 


240 


5 


1,250 


834 


625 


500 


416 


6 


1,920 


1,280 


960 


768 


640 


7 


2,760 


1,840 


1,380 


1,100 


918 


8 


3,980 


2,655 


1,990 


1,590 


1,325 


10 


7,200 


4,800 


3,600 


2,880 


2,400 




DIAMETER OF GUTTER IN 

INCHES 

1/8 in./tt. SLOPE 


MAXIMUM RAINFALL IN INCHES PER HOUR 


2 


3 


4 


5 


6 


3 


480 


320 


240 


192 


160 


4 


1,020 


681 


510 


408 


340 


5 


1,760 


1,172 


880 


704 


587 


6 


2,720 


1,815 


1,360 


1,085 


905 


7 


3,900 


2,600 


1,950 


1,560 


1,300 


8 


5,600 


3,740 


2,800 


2,240 


1,870 


10 


10,200 


6,800 


5,100 


4,080 


3,400 




DIAMETER OF GUTTER IN 

INCHES 

1/4 ln./ft. SLOPE 


MAXIMUM RAINFALL IN INCHES PER HOUR 


2 


3 


4 


5 


6 


3 


680 


454 


340 


272 


226 


4 


1,440 


960 


720 


576 


480 


5 


2,500 


1,668 


1,250 


1,000 


834 


6 


3,840 


2,560 


1,920 


1,536 


1,280 


7 


5,520 


3,680 


2,760 


2,205 


1,840 


8 


7,960 


5,310 


3,980 


3,180 


2,655 


10 


14,400 


9,600 


7,200 


5,750 


4,800 




DIAMETER OF GUTTER IN 

INCHES 

1/2 inyft. SLOPE 


MAXIMUM RAINFALL IN INCHES PER HOUR 


2 


3 


4 


5 


6 


3 


960 


640 


480 


384 


320 


4 


2,040 


1,360 


1,020 


816 


680 


5 


3,540 


2,360 


1,770 


1,415 


1,180 


6 


5,540 


3,695 


2,770 


2,220 


1,850 


7 


7,800 


5,200 


3,900 


3,120 


2,600 


8 


11,200 


7,460 


5,600 


4,480 


3,730 


10 


20,000 


13,330 


10,000 


8,000 


6,660 



196 



2010 CALIFORNIA PLUMBING CODE 



STORM DRAINAGE 



TABLE 11-3 (Metric) 
SIZE OF GUTTERS 



DIAWIETER OF GUTTER IN (mm) 
5.2 mm/m SLOPE 


MAXIMUM RAINFALL IN MILLIMETERS PER HOUR 


50.8 


76.2 


101.6 


127.0 


152.4 


80 


31.6 


21.0 


15.8 


12.6 


10.5 


100 


66.9 


44.6 


33.4 


26.8 


22.3 


125 


116.1 


77.5 


58.1 


46.5 


38.7 


150 


178.4 


119.1 


89.2 


71.4 


59.5 


175 


256.4 


170.9 


128.2 


102.2 


85.3 


200 


369.7 


246.7 


184.9 


147.7 


123.1 


250 


668.9 


445.9 


334.4 


267.6 


223.0 




DIAMETER OF GUTTER IN (mm) 
10.4 mm/m SLOPE 


MAXIMUM RAINFALL IN MILLIMETERS PER HOUR 


50.8 


76.2 


101.6 


127.0 


152.4 


80 


44.6 


29.7 


22.3 


17.8 


14.9 


100 


94.8 


63.3 


47.4 


37.9 


31.6 


125 


163.5 


108.9 


81.8 


65.4 


54.5 


150 


252.7 


168.6 


126.3 


100.8 


84.1 


175 


362.3 


241.5 


181.2 


144.9 


120,8 


200 


520.2 


347.5 


260.1 


208.1 


173.7 


250 


947.6 


631.7 


473.8 


379 


315.9 




DIAMETER OF GUTTER IN (mm) 
20.8 mm/m SLOPE 


MAXIMUM RAINFALL IN MILLIMETERS PER HOUR 


50.8 


76.2 


101.6 


127.0 


152.4 


80 


63.2 


42.2 


31.6 


25.3 


21.0 


100 


133.8 


89.2 


66.9 


53.5 


44.6 


125 


232.3 


155.0 


116.1 


92.9 


77.5 


150 


356.7 


237.8 


178.4 


142.7 


118.9 


175 


512.8 


341.9 


256.4 


204.9 


170.9 


200 


739.5 


493.3 


369.7 


295.4 


246.7 


250 


133.8 


891.8 


668.9 


534.2 


445.9 




DIAMETER OF GUTTER IN (mm) 
41 .7 mm/m SLOPE 


MAXIMUM RAINFALL IN MILLIMETERS PER HOUR 


50.8 


76.2 


101.6 


127.0 


152.4 


80 


89.2 


59.5 


44.6 


35.7 


29.7 


100 


189.5 


126.3 


94.8 


75.8 


63.2 


125 


328.9 


219.2 


164.4 


131.5 


109.6 


150 


514.7 


343.3 


257.3 


206.2 


171.9 


175 


724.6 


483.1 


362.3 


289.9 


241.4 


200 


1,040.5 


693.0 


520.2 


416.2 


346.5 


250 


1,858.0 


1,238.4 


929.0 


743.2 


618.7 



2010 CALIFORNIA PLUMBING CODE 



197 



198 2010 CALIFORNIA PLUMBING CODE 



CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE 
CHAPTER 12 - FUEL PIPING 



Adopting Agency 


BSC 


SFM 


HCD 


DSA 


OSHPD 


CSA 


DPH 


AGR 


DWR 


CA 






1 


2 


1/AC 


AC 


SS 


ss/cc 


1 


2 


3 


4 












Adopt Entire Chapter 


X 


X 


X 


X 






X 


X 


X 


X 


X 


X 












Adopt Entire Chapter as 
amended (amended sections 
listed below) 




































Adopt only those sections 
that are listed below 


X 


































Chapter/Section 



2010 CALIFORNIA PLUMBING CODE 



199 



200 201 CALIFORNIA PLUMBING CODE 



CHAPTER 12 
FUEL PIPING 



1201.0 Scope of Gas Piping. 

(A) Coverage of piping systems shall extend from the point 
of delivery to the connections with each gas utilization 
device. For other than undiluted liquefied petroleum gas 
systems, the point of delivery shall be considered the out- 
let of the service meter assembly, or the outlet of the serv- 
ice regulator or service shutoff valve where no meter is 
provided. For undiluted liquefied petroleum gas systems, 
the point of delivery shall be considered the outlet of the 
final pressure regulator, exclusive of the line gas regula- 
tors, in the system. [NFPA 54: 1 . 1 . 1 . 1 (A)] 

(B) Piping systems requirements shall include design, mate- 
rials, components, fabrications, assembly, installation, 
testing, inspection, operation, and maintenance. [NFPA 
54:1. 1.1. 1(C)] 

(C) This code shall not apply to the following (reference 
standards for some of which appear in Chapter 14 [NFPA 
54:1.1,1.2]): 

(1) Portable LP-Gas appliances of all types that are not 
connected to a fixed fuel piping system. 

(2) Installation of farm equipment such as brooders, de- 
hydrators, dryers, and irrigation equipment. 

(3) Raw material (feedstock) applications, except for 
piping to special atmosphere generators. 

(4) Oxygen- fuel gas cutting and welding systems. 

(5) hidustrial gas applications using gases such as acety- 
lene and acetylenic compounds, hydrogen, ammo- 
nia, carbon monoxide, oxygen, and nitrogen. 

(6) Petroleum refineries, pipeline compressor or pump- 
ing stations, loading terminals, compounding plants, 
refinery tank farms, and natural gas processing plants. 

(7) Large integrated chemical plants or portions of such 
plants where flammable or combustible liquids or 
gases are produced by chemical reactions or used in 
chemical reactions, 

(8) LP-Gas installations at utility gas plants. 

(9) Liquefied natural gas (LNG) installations. 

(10) Fuel gas piping in electric utility power plants. 
[NFPA 54-09:1.1.1.2(10)] 

(11) Proprietary items of equipment, apparatus, or in- 
struments such as gas-generating sets, compressors, 
and calorimeters. 

(12) LP-Gas appliances for vaporization, gas mixing, and 
gas manufacturing. 

(13) LP-Gas piping for buildings under construction or 
renovations that are not to become part of the per- 
manent building piping system — that is, temporary 
fixed piping for building heat. 



(14) Installation of LP-Gas systems for railroad switch 
heating. 

(15) Installation of LP-Gas and compressed natural gas 
systems on vehicles. 

(16) Gas piping, meters, gas-pressure regulators, and 
other appurtenances used by the serving gas supplier 
in distribution of gas, other than undiluted LP-Gas. 

1202.0 GeneraL 

The regulations of this chapter shall govern the installation 
of fuel gas piping in or in connection with any building, struc- 
ture or within the property lines of any premises up to five 
(5) psi (34.5 kPa), other than service pipe. Fuel oil piping sys- 
tems shall be installed in accordance with NFPA 31, Standard 
for Installation of Oil-Burning Equipment. 

1203.0 Definitions. 

For the purposes of this code, these definitions shall apply to 
this chapter. Certain terms, phrases, words, and their deriva- 
tives shall be interpreted as set forth in this section, provided, 
however, that whenever the words "gas meters" appear, they 
shall be construed to also mean valves and those devices re- 
quired for the regulation of pressure and the measurement of 
natural gas being dispensed for any building, structure, or 
premises. 

1203.1 Appliance Fuel Connector. An assembly of listed 
semi-rigid or flexible tubing and fittings to carry fuel between 
a fuel-piping ouflet and a fuel-burning appliance. 

1203.2 Bonding Jumper. A reliable conductor to ensure the 
required electrical conductivity between metal parts required 
to be electrically connected. [NFPA 70:100.1] 

1203.3 Fuel Gas. Natural, manufactured, liquefied petro- 
leum, or a mixture of these. 

1203.4 Gas Piping. Any installation of pipe, valves, or fit- 
tings that is used to convey fuel gas, installed on any prem- 
ises or in any building, but shall not include: 

( 1 ) Any portion of the service piping. 

(2) Any approved piping connection six (6) feet ( 1 ,829 mm) 
or less in length between an existing gas outlet and a gas 
appliance in the same room with the outlet. 

1203.5 Gas-Piping System. Any arrangement of gas piping 
or regulators after the point of delivery and each arrangement | 
of gas piping serving a building, structure, or premises, 
whether individually metered or not. 

1203.6 Grounding Electrode. A device that establishes an I 

electrical connection to the earth. I 

1203.7 Liquefied Petroleum Gas (LPG) Facilities. Lique- 
fied petroleum gas (LPG) facilities means tanks, containers, 
container valves, regulating equipment, meters, and/or ap- 
purtenances for the storage and supply of liquefied petroleum 
gas for any building, structure, or premises. 



2010 CALIFORNIA PLUMBING CODE 



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FUEL PIPING 



1203.8 Provision for Location of Point of Delivery. The lo- 
cation of the point of dehvery shall be acceptable to the serv- 
ing gas suppHer. [NFPA 54:5.2] 

1203.9 Quick-Disconnect Device. A hand-operated device 
that provides a means for connecting and disconnecting an 
appliance or an appliance connector to a gas supply and that 
is equipped with an automatic means to shut off the gas sup- 
ply when the device is disconnected. 

1203.10 Service Piping. The piping and equipment between 
the street gas main and the gas piping system inlet that is in- 
stalled by, and is under the control and maintenance of, the 
serving gas supplier. 

1203.11 Transition Gas Riser. Any listed or approved section 
or sections of pipe and fittings used to convey fuel gas and in- 
stalled in a gas piping system for the purpose of providing a 
transition from below ground to above ground. 

1204.0 Inspection. 

1204.1 Upon completion of the installation, alteration, or re- 
pair of any gas piping, and prior to the use thereof, the Au- 
thority Having Jurisdiction shall be notified that such gas 
piping is ready for inspection. 

1204.2 All excavations required for the installation of under- 
ground piping shall be kept open until such time as the pip- 
ing has been inspected and approved. If any such piping is 
covered or concealed before such approval, it shall be ex- 
posed upon the direction of the Authority Having Jurisdic- 
tion. 

1204.3 The Authority Having Jurisdiction shall make the fol- 
lowing inspections and either shall approve that portion of 
the work as completed or shall notify the permit holder 
wherein the same fails to comply with this code. 

1204.3.1 Rough Piping Inspection. This inspection 
shall be made after all gas piping authorized by the per- 
mit has been installed and before any such piping has 
been covered or concealed or any fixture or appliance 
has been attached thereto. This inspection shall include a 
determination that the gas-piping size, material, and in- 
stallation meet the requirements of this code. 

1204.3.2 Final Piping Inspection. This inspection shall 
be made after all piping authorized by the permit has 
been installed and after all portions thereof that are to be 
covered or concealed are so concealed and before any 
fixtures, appliance, or shutoff valve has been attached 
thereto. This inspection shall be in accordance with Sec- 
tion 1214.1. Test gauges used in conducting tests shall 
comply with Section 319.0, Test Gauges. 

1204.4 In cases where the work authorized by the permit con- 
sists of a minor installation of additional piping to piping al- 
ready connected to a gas meter, the foregoing inspections 
shall be permitted to be waived at the discretion of the Au- 
thority Having Jurisdiction. In this event, the Authority Hav- 
ing Jurisdiction shall make such inspection as deemed 
advisable in order to be assured that the work has been per- 
formed in accordance with the intent of this code. 



1205.0 Certificate of Inspection. 

1205.1 If, upon final piping inspection, the installation is 
found to comply with the provisions of this code, a certificate 
of inspection shall be permitted to be issued by the Authority 
Having Jurisdiction. 

1205.2 A copy of the certificate of such final piping inspec- 
tion shall be issued to the serving gas supplier supplying gas 
to the premises. 

1205.3 It shall be unlawful for any serving gas supplier, or 
person furnishing gas, to turn on or cause to be turned on, any 
fuel gas or any gas meter or meters, until such certificate of 
final inspection, as herein provided, has been issued. 

1206.0 Authority to Render Gas Service. 

1206.1 It shall be unlawful for any person, firm, or corpora- 
tion, excepting an authorized agent or employee of a person, 
firm, or corporation engaged in the business of furnishing or 
supplying gas and whose service pipes supply or connect with 
the particular premises, to turn on or reconnect gas service in 
or on any premises where and when gas service is, at the time, 
not being rendered. 

1206.2 It shall be unlawful to turn on or connect gas in or on 
any premises unless all outlets are properly and securely con- 
nected to gas appliances or capped or plugged with screw 
joint fittings. 

1207.0 Authority to Disconnect. 

1207.1 The Authority Having Jurisdiction or the serving gas 
supplier is hereby authorized to disconnect any gas piping or 
appliance or both that shall be found not to conform to the re- 
quirements of this code or that are found defective and in such 
condition as to endanger life or property. 

1207.2 Where such disconnection has been made, a notice 
shall be attached to such gas piping or appliance or both that 
shall state the same has been disconnected, together with the 
reasons thereof 

1207.3 It shall be unlawful to remove or disconnect any gas 
piping or gas appliance without capping or plugging with a 
screw joint fitting, the outlet from which said pipe or appH- 
ance was removed. Outlets to which gas appliances are not 
connected shall be left capped, gas-tight on any piping system 
that has been installed, ahered, or repaired. 

Exception: When an approved listed quick-disconnect de- 
vice is used. 

1208.0 Temporary Use of Gas. 

Where temporary use of gas is desired and the Authority Hav- 
ing Jurisdiction deems the use necessary, a permit shall be 
permitted to be issued for such use for a period of time not to 
exceed that designated by the Authority Having Jurisdiction, 
provided that such gas-piping system otherwise conforms to 
the requirements of this code regarding material, sizing, and 
safety. 



202 



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FUEL PIPING 



1209.G Gas-Piping System Design, Materials, and Com- 
ponents. 

1209.1 Piping Plan. 

1209.1.1 Installation of Piping System. Where required 
by the Authority Having Jurisdiction, a piping sketch or 
plan shall be prepared before proceeding with the instal- 
lation. This plan shall show the proposed location of pip- 
ing, the size of different branches, the various load 
demands, and the location of the point of delivery. [NFPA 
54:5.1.1] 

1209.1.2 Addition to Existing System. When an addi- 
tional gas utilization appliance is being connected to a 
gas-piping system, the existing piping shall be checked to 
determine whether it has adequate capacity (See Section 
1209.4.3). If inadequate, the existing system shall be en- 
larged as required, or separate gas piping of adequate ca- 
pacity shall be provided. [NFPA 54:5.1.2] 

1209.2 Provision for Location of Point of Delivery. The lo- 
cation of the point of delivery shall be acceptable to the serv- 
ing gas supplier. [NFPA 54:5.2] 

1209.3 Interconnections Between Gas-Piping Systems. 

[NFPA 54:5.3] 

1209.3.1 Interconnections Supplying Separate Users. 

Where two (2) or more meters, or two (2) or more serv- 
ice regulators where meters are not provided, are located 
on the same premises and supply separate users, the gas- 
piping systems shall not be interconnected on the outlet 
side of the meters or service regulators. [NFPA 54:5.3.1] 

1209.3.2 Interconnections for Standby Fuels. Where a 

supplementary gas for standby use is connected down- 
stream from a meter or a service regulator where a meter 
is not provided, a device to prevent backflow shall be in- 
stalled. A three-way valve installed to admit the standby 
supply and, at the same time, shut off the regular supply, 
shall be permitted to be used for this purpose. [NFPA 
54:5.3.2] 

1209.4 Sizing of Gas-Piping Systems. [NFPA 54:5.4] 

1209.4.1 General Considerations. Gas-piping systems 
shall be of such size and so installed as to provide a sup- 
ply of gas sufficient to meet the maximum demand and 
supply gas to each appliance inlet at not less than the 
minimum supply pressure required by the appliance. 
[NFPA 54-09:5.4.1] 

1209.4.2 Maximum Gas Demand. The volume of gas to 
be provided (in cubic feet per hour) shall be determined di- 
rectly from the manufacturer's input ratings of the gas uti- 
lization appliance served. Where the input rating is not 
indicated, the gas supplier, appliance manufacturer, or a 
qualified agency shall be contacted or the rating from Table 
12-1 shall be used for estimating the volume of gas to be 
supplied. The total connected hourly load shall be used as 
the basis for piping sizing, assuming the appliance is oper- 
ating at frill capacity simultaneously. [NFPA 54:5.4.2] 



Exception: Sizing shall be permitted to be based upon 
established load diversity factors. [NFPA 54:5.4.2.2] | 

1209.4.3 Sizing Methods. Gas piping shall be sized in 
accordance with one of the following : | 

(1) Pipe sizing tables or sizing equations in this chapter. 

(2) Other approved engineering methods acceptable to 
the Authority Having Jurisdiction. 

(3) Sizing tables included in a listed piping system man- 
ufacturer's installation instructions. [NFPA 54:5.4.3] 

TABLE 12-1 

APPROXIMATE GAS INPUT FOR TYPICAL APPLIANCES 

[NFPA 54: TABLE 5.4.2.1] 



APPLIANCE 


INPUT Btu/h. 
(Approx.) 


Space Heating Units 




Warm air furnace 




Single family 


100,000 


Multifamily, per unit 


60,000 


Hydronic boiler 




Single family 


100,000 


Multifamily, per unit 


60,000 


Space-and Water-Heating Units 




Hydronic boiler 




Single family 


120,000 


Multifamily, per unit 


75,000 


Water-Heating Appliances 




Water heater, automatic 




storage 30 to 40 gal. tank 


35,000 


Water heater, automatic 




storage 50 gal. tank 


50,000 


Water heater, automatic instantaneous 




Capacity at 2 gal. /minute 


142,800 


Capacity at 4 gal./minute 


285,000 


Capacity at 6 gal./minute 


428,400 


Water heater, domestic. 




circulating or side-arm 


35,000 


Cooking Appliances 




Range, freestanding. 




domestic 


65,000 


Built-in oven or broiler unit. 




domestic 


25,000 


Built-in top unit, 




domestic 


40,000 


Other Appliances 




Refrigerator 


3,000 


Clothes dryer, Type 1 




(domestic) 


35,000 


Gas fireplace direct vent 


40,000 


Gas log 


80,000 


Barbecue 


40,000 


Gaslight 


2,500 



For SI units: 1 Btu per hour = 0.293 W 



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FUEL PIPING 



1209.4.4 Allowable Pressure Drop. The design pressure 
loss in any piping system under maximum probable flow 
conditions, from the point of delivery to the inlet con- 
nection of the appliance, shall be such that the supply 
pressure at the appliance exceeds or is equal to the min- 
imum pressure required by the appliance. [NFPA 54- 
09:5.4.4] 

1209.5 Acceptable Piping Materials and Joining Methods. 

1209.5.1 General. 

1209.5.1.1 Acceptable Materials. Materials used 
for piping systems shall comply with the require- 
ments of this chapter or shall be acceptable to the 
Authority Having Jurisdiction. [NFPA 54:5.6. 1.1] 

1209.5.1.2 Used Materials. Pipe, fittings, valves, or 
other materials shall not be used again unless they 
are free of foreign materials and have been ascer- 
tained to be adequate for the service intended. 
[NFPA 54:5.6.1.2] 

1209.5.1.3 Other Materials. Material not covered 
by the standards specifications listed herein shall be 
investigated and tested to determine that it is safe 
and suitable for the proposed service and, in addi- 
tion, shall be recommended for that service by the 
manufacturer and shall be acceptable to the Author- 
ity Having Jurisdiction. [NFPA 54:5.6.1.3] 

1209.5.2 Metallic Pipe. 

1209.5.2.1 Cast-iron pipe shall not be used. [NFPA 
54:5.6.2.1] 

1209.5.2.2 Steel and wrought-iron pipe shall be not 
less than standard weight (Schedule 40) and shall 
comply with one of the following standards: 

( 1 ) ASME B36. 1 0, Welded and Seamless Wrought- 
Steel Pipe 

(2) ASTM A 53, Standard Specification for Pipe, 
Steel, Black and Hot-Dipped, Zinc-Coated 
Welded and Seamless 

(3) ASTM A 1 06, Standard Specification for Seam- 
less Carbon Steel Pipe for High-Temperature 
^ernce [NFPA 54:5.6.2.2] 

1209.5.2.3 Copper and brass pipe shall not be used 
if the gas contains more than an average of 0.3 
grains of hydrogen sulfide per one-hundred (100) 
scf of gas (0.7 mg/100 L). [NFPA 54:5.6.2.3] 

Threaded copper, brass, or aluminum alloy pipe 
shall not be used with gases corrosive to such mate- 
rial. [NFPA 54:5.6.2.4] 

1209.5.2.4 Aluminum alloy pipe shall comply with 
ASTM B 241, Standard Specification for Aluminum- 
Alloy Seamless Pipe and Seamless Extruded Tube 
(except that the use of alloy 5456 is prohibited) and 
shall be marked at each end of each length indicating 
compliance. Aluminum alloy pipe shall be coated to 
protect against external corrosion where it is in con- 
tact with masonry, plaster, insulation or is subject to 



repeated wettings by such liquids as water, deter- 
gents, or sewage. [NFPA 54:5.6.2.5] Aluminum alloy 
pipe shall not be used in exterior locations or under- 
ground. [NFPA 54:5.6.2.6] 

1209.5.3 Metallic Tubing. Seamless copper, aluminum 
alloy, or steel tubing shall not be used with gases corro- 
sive to such material. [NFPA 54:5.6.3] 

1209.5.3.1 Steel tubing shall comply with ASTM A 
254, Standard Specification for Copper Brazed Steel 
Tubing. [NFPA 54-09:5.6.3.1] 

1209.5.3.2 Copper and brass tubing shall not be used 
if the gas contains more than an average of 0.3 
grains of hydrogen sulfide per one-hundred (100) 
scf of gas (0.7 mg/100 L). Copper tubing shall com- 
ply with standard Type K or L of ASTM B 88, Stan- 
dard Specification for Seamless Copper Water Tube, 
or ASTM B 280, Specification for Seamless Copper 
Tube for Air-Conditioning and Refrigeration Field 
5'emc^. [NFPA 54:5.6.3.2] 

1209.5.3.3 Aluminum alloy tubing shall comply with 
ASTM B 210, Standard Specification for Aluminum- 
Alloy Drawn Seamless Tubes, or ASTM B 2A\, Stan- 
dard Specification for Aluminum Alloy Seamless Pipe 
and Seamless Extruded Tube. Aluminum alloy tubing 
shall be coated to protect against external corrosion 
where it is in contact with masonry, plaster, insulation 
or is subject to repeated wettings by liquids such as 
water, detergent, or sewage. Aluminum alloy tubing 
shall not be used in exterior locations or under- 
ground. [NFPA 54:5.6.3.3] 

1209.5.3.4 Corrugated stainless steel tubing shall be 
tested and listed in compliance with the construc- 
tion, installation, and performance requirements of 
CSA LC-1, Standard for Fuel Gas Piping Systems 
Using Corrugated Stainless Steel Tubing. [NFPA 
54:5.6.3.4] 

1209.5.4 Plastic Pipe, Tubing, and Fittings. Plastic 
pipe, tubing, and fittings used to supply fuel gas shall | 
conform with ASTM D 25 13, Standard Specification for 
Thermoplastic Gas Pressure Pipe, Tubing, and Fittings. 
Pipe to be used shall be marked "gas" and "ASTM D 
2513." [NFPA 54:5.6.4.1] 

Anodeless risers shall comply with the following 
[NFPA 54:5.6.4.3]: 

1209.5.4.1 Regulator Vent Piping. Plastic pipe, 
tubing, and fittings used to connect regulator vents 
to remote vent terminations shall be PVC conform- 
ing to UL 65 1 , Schedule 40 and 80 Rigid PVC Con- 
duit and Fittings. PVC vent piping shall not be 
installed indoors. [NFPA 54-09:5.6.4.2] 

1209.5.4.2 Factory-assembled anodeless risers shall 
be recommended by the manufacturer for the gas used 
and shall be leak-tested by the manufacturer in accor- 
dance with written procedures. [NFPA 54:5.6.4.3(1)] | 



204 



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FUEL PIPING 



1209.5.4.3 Service head adapters and field-assem- 
bled anodeless risers incorporating service head 
adapters shall be recommended by the manufacturer 
for the gas used by the manufacturer and shall be de- 
sign-certified to meet the requirements of Category 
I of ASTM D 2513, Standard Specification for Ther- 
mostatic Gas Pressure Pipe, Tubing, and Fittings 
and the code of Federal Regulations, Title 49, Part 
192.281(e). The manufacturer shall provide the user 
with qualified installation instructions as prescribed 
by the code of Federal Regulations, Title 49, Part 
192.283(b). [NFPA 54:5.6.4.3(2)] 

1209.5.4.4 The use of plastic pipe, tubing, and fit- 
tings in undiluted liquefied petroleum gas-piping 
systems shall be in accordance with NFPA 58, Liq- 
uefied Petroleum Gas Code. [NFPA 54:5.6.4.3(3)] 

1209.5.5 Workmanship and Defects. Gas pipe or tubing 
and fittings shall be clear and free from cutting burrs and 
defects in structure or threading, and shall be thoroughly 
brushed and chip and scale blown. Defects in pipe, tub- 
ing, and fittings shall not be repaired. Defective pipe, tub- 
ing, and fittings shall be replaced. [NFPA 54:5.6.5] 

1209.5.6 Protective Coating. Where in contact with ma- 
terial or atmosphere exerting a corrosive action, metallic 
piping and fittings coated with a corrosion-resistant ma- 
terial shall be used. External or internal coatings or lin- 
ings used on piping or components shall not be 
considered as adding strength. [NFPA 54:5.6.6] 

1209.5.7 Metallic Pipe Threads. 

(A) Specifications for Pipe Threads. MetaUic pipe and 
fitting threads shall be taper pipe threads and shall 
comply with ASME B 1.20.1, Standard for Pipe 
Threads, General Purpose (Inch) . [NFPA 54:5.6.7.1] 

(B) Damaged Threads. Pipe with threads that are 
stripped, chipped, corroded, or otherwise damaged 
shall not be used. Where a weld opens during the op- 
eration of cutting or threading, that portion of the 
pipe shall not be used. [NFPA 54:5.6.7.2] 

(C) Number of Threads. Field threading of metallic 
pipe shall be in accordance with Table 12-2. [NFPA 
54:5.6.7.3] 

(D) Thread Compounds. Thread (joint) compounds 
(pipe dope) shall be resistant to the action of lique- 
fied petroleum gas or to any other chemical con- 
stituents of the gases to be conducted through the 
piping. [NFPA 54:5.6.7.4] 

1209.5.8 Metallic Piping Joints and Fittings. The type 
of piping joint used shall be suitable for the pressure-tem- 
perature conditions and shall be selected giving consid- 
eration to joint tightness and mechanical strength under 
the service conditions. The joint shall be able to sustain 
the maximum end force due to the internal pressure and 
any additional forces due to temperature expansion or 
contraction, vibration, fatigue, or to the weight of the pipe 
and its contents. [NFPA 54:5.6.8] 



TABLE 12-2 
SPECIFICATIONS FOR THREADING METALLIC PIPE 



[NFPA 54:TABLE 5.6.7.3] 



IRON PIPE 
SIZE (in.) 


APPROXIMATE LENGTH OF 
THREADED PORTION (in.) 


APPROXIMATE NO. OF 
THREADSTOBECUT 


Vi 


Va 


10 


Va 


Va 


10 


1 


y% 


10 


\Va 


1 


11 


\Vi 


1 


11 


2 


1 


11 


IVi 


Vh 


12 


3 


Wi 


12 


4 


iVs 


13 



For SI units, 1 in. = 25.4 mm. 

1209.5.8.1 Pipe Joints. Pipe joints shall be threaded, 
flanged, brazed, or welded. Where nonferrous pipe 
is brazed, the brazing materials shall have a melting 
point in excess of 1,000°F (538°C). Brazing alloys 
shall not contain more than 0.05 percent phospho- 
rus. [NFPA 54:5.6.8.1] 

1209.5.8.2 Tubing Joints. Tubing joints shall either 
be made with approved gas tubing fittings, be brazed 
with a material having a melting point in excess of 
1,000''F (538°C), or made by press-connect fittings 
complying with CSA LC-4, Standard for Press-Con- 
nect Copper and Copper Alloy Fittings for Use in Fuel 
Gas Distribution Systems, Brazing alloys shall not 
contain more than 0.05 percent phosphorus. [NFPA 
54:5.6.8.2] 

1209.5.8.3 Flared Joints. Flared joints shall be used 
only in systems constructed from nonferrous pipe 
and tubing where experience or tests have demon- 
strated that the joint is suitable for the conditions and 
where provisions are made in the design to prevent 
separation of the joints. [NFPA 54:5.6.8.3] 

1209.5.8.4 Metallic Fittings (Including Valves, 
Strainers, Filters). 

(1) Threaded fittings in sizes exceeding four (4) 
inches (100 mm) shall not be used unless ac- 
ceptable to the Authority Having Jurisdiction. 

(2) Fittings used with steel or wrought-iron pipe 
shall be steel, brass, bronze, malleable iron, or 

cast-iron. 

(3) Fittings used with copper or brass pipe shall be 
copper, brass, or bronze. 

(4) Fittings used with aluminum alloy pipe shall be 
of aluminum alloy. 

(5) Cast-iron Fittings. 

(a) Flanges shall be permitted. 

(b) Bushings shall not be used. 

(c) Fittings shall not be used in systems con- 
taining flammable gas-air mixtures. 



2010 CALIFORNIA PLUMBING CODE 



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FUEL PIPING 



(d) Fittings in sizes four (4) inches (100 nun) 
and larger shall not be used indoors unless 
approved by the Authority Having Juris- 
diction. 

(e) Fittings in sizes six (6) inches (150 mm) 
and larger shall not be used unless approved 
by the Authority Having Jurisdiction. 

(6) Aluminum Alloy Fittings. Threads shall not form 
the joint seal. 

(7) Zinc -Aluminum Alloy Fittings. Fittings shall 
not be used in systems containing flammable 
gas-air mixtures. 

(8) Special Fittings. Fittings such as couplings; pro- 
prietary-type joints; saddle tees; gland-type 
compression fittings; and flared, flareless, or 
compression-type tubing fittings shall be (1) 
used within the fitting manufacturers' pressure- 
temperature recommendations; (2) used within 
the service conditions anticipated with respect 
to vibration, fatigue, thermal expansion, or con- 
traction; (3) installed or braced to prevent sep- 
aration of the joint by gas pressure or external 
physical damage; and (4) acceptable to the Au- 
thority Having Jurisdiction. [NFPA 54:5.6.8.4] 

1209.5.9 Plastic Piping, Joints, and Fittings. Plastic 
pipe, tubing, and fittings shall be joined in accordance 
with the manufacturers' instructions. The following shall 
be observed when making such joints [NFPA 54:5.6.9]: 

(A) The joint shall be designed and installed so that the 
longitudinal pullout resistance of the joint shall be 
equal to the tensile strength of the plastic piping ma- 
terial. [NFPA 54:5.6.9(1)] 

(B) Heat-fusion joints shall be made in accordance with 
AWS B2.4 Specification for Welding Procedure and 
Performance Qualification for Thermoplastics. 
Joints shall be made with the joining method rec- 
ommended by the pipe manufacturer. Heat-fusion 
fittings shall be marked "ASTM D 2513." [NFPA 
54:5.6.9(2)] 

(C) Where compression- type mechanical joints are used, 
the gasket material in the fitting shall be compatible 
with the plastic piping and with the gas distributed by 
the system. An internal tubular rigid stiffener shall be 
used in conjunction with the fitting. The stiffener shall 
be flush with the end of the pipe or tubing, shall ex- 
tend not less than the outside end of the pipe or tub- 
ing and shall extend not less than to the outside end of 
the compression fitting when installed. The stiffener 
shall be free of rough or sharp edges and shall not be 
a forced fit in the plastic. Split tubular stiffeners shall 
not be used. [NFPA 54:5.6.9(3)] 

(D) Plastic piping joints and fittings for use in liquefied 
petroleum gas-piping systems shall be in accordance 
with NFPA 58, Liquefied Petroleum Gas Code 
[NFPA 54:5.6.9(4)] 



1209.5.10 Flanges. Flanges shall comply with ASME 
B16. 1, Standard for Cast-Iron Pipe Flanges and Flanged 
Fittings', ASME B 16.20, Standard for Ring-Joint Gas- 
kets and Grooves for Steel Pipe Flanges] or MSS SP-6, 
Standard Finishes for Contact Faces of Pipe Flanges and 
Connecting-End Flanges of Valves and Fittings. The 
pressure-temperature ratings shall equal or exceed that 
required by the application. [NFPA 54:5.6.10] 

(A) Flange Facings. Standard facings shall be permit- 
ted for use under this code. Where one-hundred and 
fifty (150) psi (1,090 kPa) steel flanges are bolted to 
Class 125 cast-iron flanges, the raised face on the 
steel flange shall be removed. [NFPA 54:5.6.10.1] 

(B) Lapped Flanges. Lapped flanges shall be used only 
above ground or in exposed locations accessible for 
inspection. [NFPA 54:5.6.10.2] 

1209.5.11 Flange Gaskets. The material for gaskets shall 
be capable of withstanding the design temperature and 
pressure of the piping system and the chemical con- 
stituents of the gas being conducted without change to 
its chemical and physical properties. The effects of fire 
exposure to the joint shall be considered in choosing the 
material. [NFPA 54:5.6. 1 1] 

(1) Acceptable materials include the following [NFPA 
54:5.6.11.1]: 

(a) Metal or metal-jacketed asbestos (plain or cor- 
rugated) 

(b) Asbestos 

(c) Aluminum "O" rings and spiral-wound metal 
gaskets 

(2) When a flanged joint is opened, the gasket shall be 
replaced. [NFPA 54:5.6.11.2] 

(3) Full-face gaskets shall be used with all bronze and 
cast-iron flanges. [NFPA 54:5.6.11.3] 

1209.6 Gas Meters. 

1209.6.1 Capacity. Gas meters shall be selected for the 
maximum expected pressure and permissible pressure 
drop. [NFPA 54:5.7.1] 

1209.6.2 Location. 

(A) Gas meters shall be located in ventilated spaces read- 
ily accessible for examination, reading, replacement, 
or necessary maintenance. [NFPA 54:5.7.2.1] 

(B) Gas meters shall not be placed where they will be 
subjected to damage, such as adjacent to a driveway; 
under a fire escape; in public passages, halls, or coal 
bins; or where they will be subject to excessive cor- 
rosion or vibration. [NFPA 54:5.7.2.2] 

(C) Gas meters shall not be located where they will be 
subjected to extreme temperatures or sudden ex- 
treme changes in temperature. Meters shall not be 
located in areas where they are subjected to temper- 
atures beyond those recommended by the manufac- 
turer. [NFPA 54:5.7.2.4] 

1209.6.3 Supports. Gas meters shall be supported or 
connected to rigid piping so as not to exert a strain on the 



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meters. Where flexible connectors are used to connect a 
gas meter to downstream piping at mobile homes in mo- 
bile home parks, the meter shall be supported by a post 
or bracket placed in a firm footing or by other means pro- 
viding equivalent support. [NFPA 54:5.7.3] 

1209.6.4 Meter Protection. Meters shall be protected 
against overpressure, back-pressure, and vacuum where 
such conditions are anticipated. [NFPA 54:5.7.4] 

1209.6.5 Identification. Gas piping at multiple meter in- 
stallations shall be marked by a metal tag or other perma- 
nent means attached by the installing agency, designating 
the building or the part of the building being supplied. 
[NFPA 54:5.7.5] 

1209.7 Gas Pressure Regulators. 

1209.7.1 Where Required. A line gas pressure regulator 
I or gas appliance pressure regulator, as appHcable, shall 

be installed where the gas supply pressure exceeds that at 
I which the branch supply line or gas utilization appliance 
is designed to operate or varies beyond design pressure 
limits. [NFPA 54:5.8.1] 

1209.7.2 Listing. The line gas pressure regulator shall 
be listed in accordance with CSA Z21.80, Standard for 
Line Pressure Regulators, [NFPA 54:5.8.2] 

1209.7.3 Location. The gas pressure regulator shall be 
accessible for servicing. [NFPA 54:5.8.3] 

1209.7.4 Regulator Protection. Pressure regulators shall 
be protected against physical damage. [NFPA 54:5.8.4] 

1209.7.5 Venting. 

(A) Line Gas Pressure Regulators. 

(1) An independent vent to the outside of the build- 
ing, sized in accordance with the regulator man- 
ufacturer's instructions, shall be provided where 
the location of a regulator is such that a ruptured 
diaphragm will cause a hazard. Where there is 
more than one (1) regulator at a location, each 
regulator shall have a separate vent to the out- 
side or, if approved by the Authority Having Ju- 
risdiction, the vent lines shall be permitted to be 
manifolded in accordance with accepted engi- 
neering practices to minimize back-pressure in 
the event of diaphragm failure (See NFPA 
54:5.9.7 for information on properly locating 
the vent.). Materials for vent piping shall be in 
accordance with Section 1209.5. 

Exception: A regulator and vent limiting means 
combination listed as complying with CSA 
Z2 1 .80, Standard for Line Pressure Regulators, 
shall be permitted to be used without a vent to 
the outdoors. 

(2) The vent shall be designed to prevent the entry 
of water, insects, or other foreign materials that 
could cause blockage. 

(3) At locations where regulators might be sub- 
merged during floods, a special antiflood-type 
breather vent fitting shall be installed, or the 
vent line shall be extended above the height of 
the expected flood waters. 



(4) A regulator shall not be vented to the gas appli- 1 
ance flue or exhaust system. [NFPA 54:5.8.5.1] | 

(B) Venting of Gas Appliance Pressure Regulators. | 

Venting of gas appliance pressure regulators shall 
comply with the following requirements: 

(1) Gas appliance pressure regulators requiring ac- 
cess to the atmosphere for successful operation 
shall be equipped with vent piping leading out- 
doors or, if the regulator vent is an integral part 
of the appliance, into the combustion chamber | 
adjacent to a continuous pilot, unless constructed 
or equipped with a vent-limiting means to limit 
the escape of gas from the vent opening in the 
event of diaphragm failure. 

(2) Vent-limiting means shall be employed on listed 
gas appliance pressure regulators only. 

(3) In the case of vents leading outdoors, means 
shall be employed to prevent water from enter- 
ing this piping and also to prevent blockage of 
vents by insects and foreign matter. 

(4) Under no circumstances shall a regulator be 
vented to the gas utilization appliance flue or | 
exhaust system. 

(5) In the case of vents entering the combustion 
chamber, the vent shall be located so the escap- 
ing gas will be readily ignited by the pilot and 
the heat liberated thereby will not adversely af- 
fect the normal operation of the safety shutoff 
system. The terminus of the vent shall be se- 
curely held in a fixed position relative to the 
pilot. For manufactured gas, the need for a flame 
arrester in the vent piping shall be determined. 

(6) Vent lines from a gas appliance pressure regu- 
lator and bleed lines from a diaphragm-type 
valve shall not be connected to a common man- 
ifold terminating in a combustion chamber. 

Vent lines shall not terminate in positive-pressure- 
type combustion chambers. [NFPA 54:9.1.19] 

(C) Discharge of Vents. 

(1) The discharge stacks, vents, or outlet parts of 
all pressure-relieving and pressure-limiting de- 
vices shall be located so that gas is safely dis- 
charged into the outside atmosphere. 

(2) Discharge stacks or vents shall be designed to 
prevent the entry of water, insects, or any other 
foreign material that could cause blockage. The 
discharge stack or vent line shall be not less 
than the same size as the outlet of the pressure- 
reheving device. [NFPA 54:5.9.7] 

1209.7.6 Bypass Piping. Valved and regulated bypasses 
shall be permitted to be placed around gas line pressure 
regulators where continuity of service is imperative. 
[NFPA 54:5.8.6] 



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1209.7.7 Identification. Line pressure regulators at mul- 
tiple regulator installations shall be marked by a metal 
tag or other permanent means designating the building 
or the part of the building being supplied. [NFPA 

54:5.8.7] 

1209.8 Back-Pressure Protection. 

1209.8.1 Where to Install. Protective devices shall be 
I installed as close to the utilization appliance as practical, 
I where the design of utilization appHances connected are 

such that air, oxygen, or standby gases could be forced 
into the gas supply system. [NFPA 54:5.10.1.1] Gas and 
air combustion mixers incorporating double diaphragm 
"zero" or "atmosphere" governors or regulators shall re- 
quire no further protection unless connected directly to 
compressed air or oxygen at pressures of five (5) psi (34 
kPa) or more. [NFPA 54:5.10.1.2] 

1209.8.2 Protective Devices. Protective devices shall in- 
clude but not be limited to the following: 

(1) Check valves 

(2) Three-way valves (of the type that completely closes 
one side before starting to open the other side) 

(3) Reverse flow indicators controlling positive shutoff 
valves 

(4) Normally closed air-actuated positive shutoff pres- 
sure regulators [NFPA 54:5.10.2] 

1209.9 Low-Pressure Protection. A protective device shall 
I be installed between the meter and the gas utilization appli- 
I ance if the operation of the appHance (i.e., gas compressors) 

is such that it could produce a vacuum or a dangerous reduc- 
tion in gas pressure at the meter. Such devices include, but 
are not limited to, mechanical, diaphragm-operated, or elec- 
trically operated low-pressure shutoff valves. [NFPA 54:5.1 1] 

1209.10 Shutoff Valves, Shutoff valves shall be approved 
and shall be selected giving consideration to pressure drop, 
service involved, emergency use, and rehability of operation. 
Shutoff valves of size one (1) inch (25 mm) National Pipe 
Thread and smaller shall be listed. [NFPA 54:5.12] 

1209.11 Expansion and Flexibility. 

1209.11.1 Design. Piping systems shall be designed to 
have sufficient flexibility to prevent thermal expansion or 
contraction from causing excessive stresses in the piping 
material, excessive bending or loads at joints, or unde- 
sirable forces or moments at points of connections to 
equipment and at anchorage or guide points. Formal cal- 
culations or model tests shall be required only where rea- 
sonable doubt exists as to the adequate flexibility of the 
system. [NFPA 54:5.13.1] 

Flexibility shall be provided by the use of bends, 
loops, offsets, or couplings of the slip type. Provision shall 
be made to absorb thermal changes by the use of expan- 
sion joints of the bellows type, or by the use of "ball" or 
"swivel" joints. Expansion joints of the slip type shall not 
be used inside buildings or for thermal expansion. Where 



expansion joints are used, anchors or ties of sufficient 
strength and rigidity shall be installed to provide for end 
forces due to fluid pressure and other causes. [NFPA 
54:5.13.1.1] 

Pipe alignment guides shall be used with expansion 
joints according to the recommended practice of the joint 
manufacturer. [NFPA 54: 5 . 1 3 . 1 .2] 

1209.11.2 Special Local Conditions. Where local con- 
ditions include earthquake, tornado, unstable ground, or 
flood hazards, special consideration shall be given to in- 
creased strength and flexibility of piping supports and 
connections. [NFPA 54:5.13.2] 

1210.0 Excess Flow Valve. 

Where automatic excess flow gas valves are installed, they 
shall be listed, sized, and installed in accordance with the 
manufacturer's instructions. [NFPA 54-09:5.13] 

1211.0 Gas Piping Installation. 

1211.1 Piping Underground. 

1211.1.1 Clearances. Underground gas piping shall be 
installed with sufficient clearance from any other under- 
ground structure to avoid contact therewith, to allow 
maintenance, and to protect against damage from prox- 
imity to other structures. In addition, underground plas- 
tic piping shall be installed with sufficient clearance or 
shall be insulated from any source of heat so as to prevent 
the heat from impairing the serviceability of the pipe. 
[NFPA 54:7. 1.1] 

1211.1.2 Protection Against Damage. 

(A) Cover Requirements. Underground piping systems 
shall be installed with a minimum of eighteen (18) 
inches (460 mm) of cover. Where external damage 
to the pipe is not likely to resuh, the cover shall be 
a minimum of twelve (12) inches (300 mm). Where 
a minimum of twelve (12) inches (300 mm) of cover 
cannot be provided, the pipe shall be installed in 
conduit or bridged (shielded). [NFPA 54:7.1.2.1] 

(B) Trenches. The trench shall be graded so that the pipe 
has a firm, substantially continuous bearing on the 
bottom of the trench. [NFPA 54:7.1.2.2] 

(C) Backfilling. Where flooding of the trench is done to 
consolidate the backfill, care shall be exercised to 
see that the pipe is not floated from its firm bearing 
on the trench bottom. [NFPA 54:7. 1 .2.3] 

1211.1.3 Protection Against Corrosion. Gas piping in 
contact with earth or other material that could corrode 
the piping shall be protected against corrosion in an ap- 
proved manner. When dissimilar metals are joined un- 
derground, an insulating coupling or fitting shall be used. 
Piping shall not be laid in contact with cinders. Uncoated 
threaded or socket- welded joints shall not be used in pip- 
ing in contact with soil or where internal or external 
crevice corrosion is known to occur. [NFPA 54:7.1.3] 



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1211.1.4 Protection Against Freezing. Where the for- 
mation of hydrates or ice is known to occur, piping shall 
be protected against freezing. [NFPA 54:7. 1.4] 

1211.1.5 Piping Through Foundation Wall. Under- 
ground piping installed through the outer foundation or 
basement wall of a building, shall be encased in a pro- 
tective sleeve or protected by an approved device or 
method. The space between the gas piping and the build- 
ing or sleeve shall be sealed to prevent entry of gas and 
water. [NFPA 54:7.1.5] 

1211.1.6 Piping Underground Beneath Buildings. 

Where the installation of gas piping underground beneath 
buildings is unavoidable, the piping shall be encased in an 
approved conduit designed to withstand the superimposed 
loads. [NFPA 54:7. 1 .6] The conduit shall extend into a nor- 
mally usable and accessible portion of the building and, at 
the point where the conduit terminates in the building, the 
space between the conduit and the gas piping shall be 
sealed to prevent the possible entrance of any gas leakage. 
Where the end sealing is of a type that will retain the fiill 
pressure of the pipe, the conduit shall be designed for the 
same pressure as the pipe. The conduit shall extend not less 
than (4) inches (100 mm) outside the building, be vented 
above grade to the outside, and be installed so as to pre- 
vent the entrance of water and insects. [NFPA 54:7.1.6.1] 

1211.1.7 Plastic Pipe. 

(A) Connection of Plastic Piping. Plastic pipe shall be 
installed outside, underground only. [NFPA 54:7. 1 .7. 1] 

Exceptions: 

(1) Plastic pipe shall be permitted to terminate 
above ground where an anodeless riser is used. 

(2) Plastic pipe shall be permitted to terminate with 
a wall head adapter above ground in buildings, 
including basements, where the plastic pipe is 
inserted in a piping material permitted for use in 
buildings. 

(B) Connections Between Metallic and Plastic Pip- 
ing. Connections made between metallic and plastic 
piping shall be made only with fittings conforming 
to one of the following: 

(1) ASTM D 2513, Standard Specification for 
Thermoplastic Gas Pressure Pipe, Tubing, and 
Fittings, Category I transition fittings. 

(2) A^iy[¥ \912>, Standard Specification for Fac- 
tory Assembled Anodeless Risers and Transition 
Fittings in Polyethylene (PE) and Polyamide 11 
(PAH) Fuel Gas Distribution Systems. 

(3) ASTM F 2509, Standard Specification for 
Field-Assembled Anodeless Riser Kits for Use 
on Outside Diameter Controlled Polyethylene 
Gas Distribution Pipe and Tubing. [NFPA 54- 
09:7.1.7.2] 

(C) An electrically continuous corrosion-resistant tracer 
wire (minimum AWG 14) or tape shall be buried 
with the plastic pipe to facilitate locating. One (1) 
end shall be brought above ground at a building wall 

or riser. [NFPA 54:7.1.7.3] 



1211.2 Installation of Piping. 

1211.2.1 Piping installed above ground shall be securely 
supported and located where it will be protected from 
physical damage (also See Section 1211.1.4). Where 
passing through an outside wall, the piping shall also be 
protected against corrosion by coating or wrapping with 
an inert material approved for such applications. Where 
piping is encased in a protective pipe sleeve, the annular 
space between the gas piping and the sleeve shall be 
sealed at the wall to prevent the entry of water, insects, 
or rodents. [NFPA 54:7.2.1] 

1211.2.2 Building Structure. 

(1) The installation of gas piping shall not cause struc- 
tural stresses within building components to exceed 
allowable design limits. [NFPA 54:7.2.2.1] 

(2) Approval shall be obtained before any beams or 
joists are cut or notched. [NFPA 54:7.2.2.2] Permis- 
sion shall be obtained from the Authority Having Ju- 
risdiction. 

1211.2.3 Other than Dry Gas. Drips, sloping, protec- 
tion from freezing, and branch pipe connections, as pro- 
vided for in Section 1211.1.4, Section 1211.8.1, and 
Section 1211.10, shall be provided when other than dry 
gas is distributed and climactic conditions make such 
provisions necessary. [NFPA 54:7.2.3] 

1211.2.4 Gas Piping to be Sloped. Piping for other than 
dry gas conditions shall be sloped not less than one- 
fourth QA) inch in fifteen (15) feet (8 mm in 4,572 mm) 
to prevent traps. [NFPA 54:7.2.4] 

1211.2.4.1 Ceiling Locations. Gas piping shall be 
permitted to be installed in accessible spaces be- 
tween a fixed ceiling and a dropped ceiling, whether 
or not such spaces are used as a plenum. Valves shall 
not be located in such spaces. 

Exception: Appliance shutoff valves required by | 
this code shall be permitted to be installed in acces- 
sible spaces containing vente.d gas utilization appli- 1 
ances. I 

1211.2.5 Prohibited Locations. Gas piping inside any 
building shall not be installed in or through a circulating 
air duct, clothes chute, chimney or gas vent, ventilating 
duct, dumbwaiter, or elevator shaft. [NFPA 54:7.2.5] This 
provision shall not apply to ducts used to provide com- 
bustion and ventilation air in accordance with Section 
507.0 or to above-ceiling spaces as covered in Section 
1211.2.4.1. 

1211.2.6 Hangers, Supports, and Anchors. 

(A) Piping shall be supported with metal pipe hooks, 
metal pipe straps, metal bands, metal brackets, metal 
hangers, or building structural components, suitable 
for the size of piping, of adequate strength and qual- 
ity; and located at intervals so as to prevent or damp 
out excessive vibration. Piping shall be anchored to 
prevent undue strains on connected equipment and 
shall not be supported by other piping. Pipe hangers 



2010 CALIFORNIA PLUMBING CODE 



209 



FUEL PIPING 



and supports shall conform to the requirements of 
MSS SP-58, Pipe Hangers and Supports Materials, 
Design and Manufacture, [NFPA 54:7.2.6.1] 

(B) Spacings of supports in gas-piping installations shall 
not exceed as shown in Table 12-3. Spacing of sup- 
ports for CSST shall be in accordance with the CSST 
manufacturer's instruction. [NFPA 54:7.2.6.2] 

TABLE 12-3 
SUPPORT OF PIPING 



STEEL PIPE, 

NOMINAL SIZE OF 

PIPE (in.) 


SPACING OF 

SUPPORTS 

(ft.) 


NOMINAL SIZE 

OF TUBING 

SMOOTH-WALL 

(In. O.D.) 


SPACING OF 

SUPPORTS 

(ft.) 


Vi 


6 


Vi 


4 


Va or 1 


8 


y% or Va 


6 


1 '/4 or larger 
(horizontal) 


10 


y% or 1 
(horizontal) 


8 


iy4 or larger 
(vertical) 


every floor 
level 


1 or larger 
(vertical) 


every floor 
level 



For SI units: 1 ft. = 0.305 m. [NFPA 54: Table 7.2.6.2] 

(C) Supports, hangers, and anchors shall be installed so 
as not to interfere with the free expansion and con- 
traction of the piping between anchors. All parts of 
the supporting equipment shall be designed and in- 
stalled so they will not be disengaged by movement 
of the supported piping. [NFPA 54:7.2.6.3] 

1211.2.7 Removal of Pipe. Where piping containing gas 
is to be removed, the line shall be first disconnected from 
sources of gas and then thoroughly purged with air, 
water, or inert gas before any cutting or welding is done 
(See Section 1214.6.). [NFPA 54:7.2.7] 
1211.3 Concealed Piping in Buildings. 

1211.3.1 General. Gas piping in concealed locations 
shall be installed in accordance with this section. [NFPA 
54:7.3.1] 

1211.3.2 Connections. Where gas piping is to be con- 
cealed, unions, tubing fittings, right and left couplings, 
bushings, swing joints, and compression couplings made 
by combinations of fittings shall not be used. Connec- 
tions shall be of the following type: 

(1) Pipe fittings such as elbows, tees, and couplings. 

(2) Joining tubing by brazing (See Section 1209.5.8.2). 

(3) Fittings listed for use in concealed spaces that have 
been demonstrated to sustain, without leakage, any 
forces due to temperature expansion or contraction, 
vibration, or fatigue based on their geographic loca- 
tion, application, or operation. 

(4) Where necessary to insert fittings in gas pipe that 
has been installed in a concealed location, the pipe 
shall be reconnected by welding, flanges, or the use 
of a ground joint union with the nut center-punched 
to prevent loosening by vibration. [NFPA 54:7.3.2] 

1211.3.3 Piping in Partitions. Concealed gas piping 
shall not be located in solid partitions. [NFPA 54:7.3.3] 



1211.3.4 Tubing in Partitions. This provision shall not 
apply to tubing that pierces walls, floors, or partitions or to 
tubing installed vertically and horizontally inside hollow 
walls or partitions without protection along its entire con- 
cealed length where both of the following requirements 
are met: 

(1) A steel striker barrier not less than 0.0508 inches 
(1.3 mm) thick, or equivalent, is installed between 
the tubing, the finished wall and extends at least 4 
inches (100 mm) beyond concealed penetrations of 
plates, fire stops, wall studs, and so on. 

(2) The tubing is installed in single runs and is not rigidly 

secured. [NFPA 54:7.3.4] 

1211.3.5 Piping in Floors. In industrial occupancies, gas 
piping in solid floors such as concrete shall be laid in 
channels in the floor and covered to permit access to the 
piping with minimum damage to the building. Where 
piping in floor channels could be exposed to excessive 
moisture or corrosive substances, the piping shall be pro- 
tected in an approved manner. [NFPA 54:7.3.5.1] 

Exception: In other than industrial occupancies and where 
approved by the Authority Having Jurisdiction, gas pip- 
ing embedded in concrete floor slabs constructed with 
Portland cement shall be surrounded with a minimum of 
one and one half (iVi) inches (38 mm) of concrete and 
shall not be in physical contact with other metallic struc- 
tures such as reinforcing rods or electrically neutral con- 
ductors. Piping, fittings, and risers shall be protected 
against corrosion in accordance with Section 1209.5.6. 
Piping shall not be embedded in concrete slabs containing 
quick-set additives or cinder aggregate. [NFPA 54:7.3.5.2] 

1211.4 Piping in Vertical Chases (See Section 1202.0). 
Where gas piping exceeding five (5) psi (34 kPa) is located 
within vertical chases in accordance with Section 1211 .5, the 
requirements of Sections 1211.5.1 through 1211.5.3 shall 
apply. [NFPA 54:7.4] 

1211.5 Maximum Design Operating Pressure. The maxi- 
mum design operating pressure for piping systems located in- 
side buildings shall not exceed five (5) psi (34 kPa) unless 
one (1) or more of the following conditions are met: 

(1) The piping system is welded. 

(2) The piping is located in a ventilated chase or otherwise en- 
closed for protection against accidental gas accumulation. 

(3) The piping is located inside buildings or separate areas of 
buildings used exclusively for one of the following: 

(a) Industrial processing or heating 

(b) Research 

(c) Warehousing 

(d) Boiler or mechanical equipment rooms 

(4) The piping is a temporary installation for buildings under 
construction. 

(5) The piping serves appliances or equipment used for agri- 
cultural purposes. 



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(6) The piping system is an LP-Gas piping system with a de- 
sign operating pressure greater than 20 psi and complies 
with NFPA 54:5.5.2. Liquefied Petroleum Gas Systems 
designed to operate below -5T (-2rC) with butane or a 
propane-butane mix shall be designed to either accom- 
modate liquid LP-Gas or to prevent LP-Gas vapor from 
condensing back into liquid. [NFPA 54-09:5.5.1] 

1211.5.1 Pressure Reduction (See Section 1202.0). 
Where pressure reduction is required in branch connec- 
tions for compliance with Section 121 1.5, such reduction 
shall take place either inside the chase or immediately 
adjacent to the outside wall of the chase. Regulator vent- 
ing and downstream overpressure protection shall com- 
ply with Section 1209.7.4 and NFPA Section 5.9. The 
regulator shall be accessible for service and repair and 
vented in accordance with one (1) of the following: 

(1) Where the fuel gas is lighter than air, regulators 
equipped with a vent-limiting means shall be permit- 
ted to be vented into the chase. Regulators not 
equipped with a vent-limiting means shall be permit- 
ted to be vented either directly to the outdoors or to a 
point within the top one (1) foot (0.3 m) of the chase. 

(2) Where the fuel gas is heavier than air, the regulator 
vent shall be vented only directly to the outdoors. 

[NFPA 54:7.4.1] 

1211.5.2 Liquefied Petroleum Gas Systems. The max- 
imum operating pressure of LP-Gas piping systems shall 
be: 

(1) In accordance with Section 1211.5.1; 

(2) In accordance with NFPA 58, Liquefied Petroleum 
Gas Code, where the pressure exceeds twenty (20) 
(138 kPa) psi and; 

(3) Designed to either accommodate liquid LP-Gas or 
prevent LP-Gas vapor from condensing back into a 
liquid in buildings having systems designed to oper- 
ate below -5°F (-2rC) or with butane or a propane- 
butane mix. 

1211.5.3 Construction. Chase construction shall com- 
ply with local building codes with respect to fire resist- 
ance and protection of horizontal and vertical openings. 
[NFPA 54:7.4.2] 

1211.5.4 Ventilation. A chase shall be ventilated to the 
outdoors and only at the top. The openings shall have a 
minimum free area (in square inches) equal to the prod- 
uct of one-half (^2) of the maximum pressure in the pip- 
ing (in psi) times the largest nominal diameter of that 
piping (in inches), or the cross-sectional area of the 
chase, whichever is smaller. Where more than one (1) 
fuel gas piping system is present, the free area for each 
system shall be calculated and the largest area used. 
[NFPA 54:7.4.3] 

1211.6 Appliance Over Pressure Protection. The maximum 
operating pressure for piping systems serving appliances de- 
signed to operate at fourteen (14) inches w.c. inlet pressure or 
less shall be two (2) psig unless an over-pressure protection 



device designed to limit pressure at the appliance to two (2) I 
psig upon failure of the line gas pressure regulator is installed. | 

1211.7 Gas Pipe Turns. Changes in direction of gas pipe 
shall be made by the use of fittings, or factory bends. [NFPA 
54:7.5] 

1211.7.1 Metallic Pipe. Metallic pipe bends shall com- 
ply with the following: 

(1) Bends shall be made only with bending equipment 
and procedures intended for that purpose. 

(2) Bends shall be smooth and free from buckling, cracks, 
or other evidence of mechanical damage. 

(3) The longitudinal weld of the pipe shall be near the 
neutral axis of the bend. 

(4) The pipe shall not be bent through an arc of more than 
90 degrees. 

(5) The inside radius of a bend shall be not less than six 
(6) times the outside diameter of the pipe. [NFPA 
54:7.5.1] 

1211.7.2 Plastic Pipe. Plastic pipe bends shall comply 
with the following: 

( 1 ) The pipe shall not be damaged and the internal diam- 
eter of the pipe shall not be effectively reduced. 

(2) Joints shall not be located in pipe bends. 

(3) The radius of the inner curve of such bends shall be 
not less than twenty-five (25) times the inside diam- 
eter of the pipe. 

(4) Where the piping manufacturer specifies the use of 
special bending equipment or procedures, such equip- 
ment or procedures shall be used. [NFPA 54:7.5.2] 

1211.7.3 Elbows. Factory-made welding elbows or 
transverse segments cut therefrom shall have an arc 
length measured along the crotch of at least one (1) inch 
(25 mm) for pipe sizes two (2) inches and larger. [NFPA 
54:7.5.3] 

1211.8 Drips and Sediment Traps. 

1211.8.1 Provide Drips Where Necessary. For other 
than dry gas conditions, a drip shall be provided at any 
point in the line of pipe where condensate could collect. 
Where required by the Authority Having Jurisdiction or 
the serving gas supplier, a drip shall also be provided at 
the outlet of the meter. This drip shall be so installed as 
to constitute a trap wherein an accumulation of conden- 
sate will shut off the flow of gas before it will run back 
into the meter. [NFPA 54:7.6.1] 

1211.8.2 Location of Drips. Drips shall be installed only 
in such locations that they will be readily accessible to 
permit cleaning or emptying. A drip shall not be located 
where the condensate is likely to freeze. [NFPA 54:7.6.2] 

1211.8.3 Sediment Traps (See Section 1212.7). 

1211.9 Outlets. 

1211.9.1 Location and Installation. 

(1) The outlet fittings or piping shall be securely fas- 
tened in place. [NFPA 54:7.7.1.1] 



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FUEL PIPING 



(2) Outlets shall not be located behind doors. [NFPA 
54:7.7.1.2] 

(3) Outlets shall be located far enough from floors, 
walls, patios, slabs, and ceilings to permit the use of 
wrenches without straining, bending, or damaging 
the piping. [NFPA 54:7.7.1.3] 

(4) The unthreaded portion of gas piping outlets shall 
extend not less than one (1) inch (25 mm) through 
finished ceilings or indoor or outdoor walls. [NFPA 
54:7.7.1.4] 

(5) The unthreaded portion of gas-piping outlets shall 
extend not less than two (2 ) inches (50 mm) above 
the surface of floors or outdoor patios or slabs. 
[NFPA 54:7.7.1.5] 

(6) The provisions of Sections 1211.7.1(4) and (5) shall 
not apply to listed quick-disconnect devices of the 
flush-mounted type or listed gas convenience outlets. 
Such devices shall be installed in accordance with 
the manufacturer's installation instructions. [NFPA 
54:7.7.1.6] 

1211.9.2 Cap Outlets. 

(A) Each outlet, including a valve, shall be closed gas- 
tight with a threaded plug or cap immediately after 
installation and shall be left closed until the gas uti- 

Ilization appliance is connected thereto. When an ap- 
pliance is disconnected from an outlet and the outlet 
is not to be used again immediately, it shall be closed 
gas-tight. [NFPA 54:7.7.2.1] 

Exceptions: 

(1) Laboratory equipment installed in accordance 
with Section 1212.2(A) shall be permitted, 

(2) The use of a hsted quick-disconnect device with 
integral shutoff or hsted gas convenience outlet 
shall be permitted. 

I (B) Appliance shutoff valves installed in fireplaces shall 
be removed and the piping capped gas-tight where 
the fireplace is used for solid-fuel burning. [NFPA 
54:7.7.2.2] 

1211.10 Branch Pipe Connection. When a branch outlet is 
placed on a main supply line before it is known what size pipe 
will be connected to it, the outlet shall be of the same size as 
the line that supplies it. [NFPA 54:7,8] 

1211.11 Manual Gas Siiutoff Valves (Also See Section 
1212.5). 

1211.11.1 Valves at Regulators. An accessible gas shut- 
off valve shall be provided upstream of each gas pressure 
regulator. Where two (2) gas pressure regulators are in- 
stalled in series in a single gas line, a manual valve shall 
not be required at the second regulator. [NFPA 54:7,9.1] 

1211.11.2 Valves Controlling Multiple Systems. 

(A) Accessibility of Gas Valves. Main gas shutoff 
valves controlling several gas piping systems shall 



be readily accessible for operation and installed so as 
to be protected from physical damage. They shall be 
marked with a metal tag or other permanent means 
attached by the installing agency so that the gas pip- 
ing systems supplied through them can be readily 
identified. [NFPA 54:7.9.2,1] 
(B) Shutoff Valves for Multiple House Lines. In mul- 
tiple-tenant buildings supplied through a master 
meter, or through one (1) service regulator where a 
meter is not provided, or where meters or service 
regulators are not readily accessible from the equip- 
ment location, an individual shutoff valve for each 
apartment or tenant line shall be provided at a con- 
venient point of general accessibility. 

In a common system serving a number of indi- 
vidual buildings, shutoff valves shall be installed at 
each building. [NFPA 54:7.9.2.2] 

1211.11.3 Emergency Shutoff Valves. An exterior shut- 
off valve to permit turning off the gas supply to each 
building in an emergency shall be provided. The emer- 
gency shutoff valves shall be plainly marked as such and 
their locations posted as required by the Authority Hav- 
ing Jurisdiction. [NFPA 54:7.9.2.3] 

1211.11.4 Shutoff Valve For Laboratories. Each labo- 
ratory space containing two (2) or more gas outlets in- 
stalled on tables, benches, or in hoods in educational, 
research, commercial and industrial occupancies shall 
have a single shutoff valve through which such gas out- 
lets are supplied. The shutoff valve shall be accessible 
and shall be located within the laboratory or located ad- 
jacent to the laboratory's egress door and shall be iden- 
tified. [NFPA 54-09:7.9.2.4] 

1211.12 Prohibited Devices. No device shall be placed in- 
side the gas piping or fittings that will reduce the cross-sec- 
tional area or otherwise obstruct the free flow of gas, except 
where proper allowance in the piping system design has been 
made for such a device and where approved by the Authority 
Having Jurisdiction. [NFPA 54:7,10] 

1211.13 Systems Containing Gas-Air Mixtures Outside 
the Flammable Range. Where gas-air mixing machines are 
employed to produce mixtures above or below the flammable 
range, they shall be provided with stops to prevent adjustment 
of the mixture to within or approaching the flammable range. 
[NFPA 54:7.11] 

1211.14 Systems Containing Flammable Gas-Air Mix- 
tures. Systems containing flammable gas-air mixtures shall I 
be in accordance with NFPA 54, National Fuel Gas Code. \ 

1211.15 Electrical Bonding and Grounding. 
1211.15.1 Pipe and Tubing other than CSST. Each 
above ground portion of a gas piping system other than 
CSST that is likely to become energized shall be electri- 
cally continuous and bonded to an effective ground-fault 
current path. Gas piping, other than CSST shall be con- 
sidered to be bonded when it is connected to appliances 



212 



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that are connected to the apphance grounding conductor of 
the circuit supplying that appliance. [NFPA 54-09:7.13.1] 

1211.15.2 CSST gas piping systems shall be bonded to 
the electrical service grounding electrode system at the 
point where the gas service enters the building. The 
bonding jumper shall be not smaller than six (6) AWG 
copper wire. [NFPA 54-09:7.13.2] 

1211.15.3 Gas piping shall not be used as a grounding 
conductor or electrode. This does not preclude the bond- 
ing of metallic piping to a grounding system. [NFPA 54- 
09:7.13.3] 

1211.15.4 Where a lightning protection system is in- 
stalled, the bonding of the gas piping system shall be in 
accordance with NFPA 780, Standard for Installation of 
Lightning Protection Systems. [NFPA 54-09:7.13.4] 

1211.16 Electrical Circuits. Electrical circuits shall not uti- 
lize gas piping or components as conductors. [NFPA 54:7.14] 

Exception: Low-voltage (50V or less) control circuits, igni- 
tion circuits, and electronic flame detection device circuits 
shall be permitted to make use of piping or components as a 
part of an electric circuit. 

1211.17 Electrical Connections. 

(A) Electrical connections between wiring and electrically 
operated control devices in a piping system shall con- 
form to the requirements of California Electrical Code, 

(B) Any essential safety control depending on electric cur- 
rent as the operating medium shall be of a type that will 
shut off (fail safe) the flow of gas in the event of current 
failure. [NFPA 54:7.15.2] 

II 1211.18 Earthquake-Actuated Gas Shutoff Valves, Earth- 
quake-actuated gas shutoff valves, certified by the State Ar- 
chitect as conforming to California Referenced Standard 
1 2-16-1 , shall be provided for buildings when such installa- 
tion is required by local ordinance. Earthquake-actuated gas 
shutoff valves which have not been certified by the State Ar- 
chitect shall be prohibited in buildings open to the public 
under mandatory installation by local ordinance. 

II An earthquake-actuated gas shutoff valve is a valve for 
installation in a gas piping system and designed to automat- 
ically shut off the gas at the location of the valve in the event 
of a seismic disturbance. 



1212.0 Appliance Connections to Building Piping. 

1212.1 Connecting Gas Appliances. Gas utiHzation apph- 
ances shall be connected to the building piping in compliance 
with Sections 1212.5 and 1212.6 by one of the following 
[NFPA 54:9.6.1]: 

(1) Rigid metallic pipe and fittings. [NFPA 54:9.6.1(1)] 

(2) Semirigid metallic tubing and metallic fittings. Alu- 
minum alloy tubing shall not be used in exterior loca- 
tions. [NFPA 54:9.6.1(2)] 

(3) Listed flexible gas connectors in compliance with CSA 
Z21.24, Standard for Connectors for Gas Appliances. 
The connector shall be used in accordance with the terms 
of their listing that are completely in the same room as 
the appliance. [NFPA 54:9.6.1(3)] 



(4) CSST where installed in accordance with the manufac- 
turer's instructions. [NFPA 54:9.6.1(5)] 

(5) Listed nonmetallic gas hose connectors in accordance 
with Section 1212.3. [NFPA 54:9.6.1(6)] 

(6) Gas-fired food service (commercial cooking) apphances | 
Hsted for use with casters or otherwise subject to move- 
ment for cleaning, and other large and heavy gas utiliza- 
tion appliances that can be moved, shall be connected in | 
accordance with the connector manufacturer's installation 
instructions using a listed appliance connector comply- 
ing with CSA Z2 1 .69, Standard for Connectors for Mov- 
able Gas Appliances, The commercial cooking appliance 
connector installation shall be configured in accordance 
with the manufacturer's installation instructions. (NFPA 
54:9.6.1.1) 

(7) Movement of appliances with casters shall be limited by 
a restraining device installed in accordance with the con- 
nector and appliance manufacturer's installation instruc- 
tions. [NFPA 54-09:9.6. 1.2] 

(8) In Section 1212.1 (2), (3), and (5), the connector or tubing 
shall be installed so as to be protected against physical and 
thermal damage. Aluminum alloy tubing and connectors 
shall be coated to protect against external corrosion where 
they are in contact with masonry, plaster, insulation, or are 
subject to repeated wettings by such liquids as water (ex- 
cept rain water), detergents, or sewage.[NFPA54:9.6.1(7)] 

1212.2 Suspended Low-Intensity Infrared Tube Heaters. 

Suspended low-intensity infrared tube heaters shall be con- 
nected to the building piping system with a connector listed 
for the application in accordance with CSA Z21.24/CGA 
6.10, Connectors for Gas Appliances. [NFPA 54-09:9.6.1.3] 

(A) The connector shall be installed in accordance with the 
tube heater installation instructions, and shall be in the 
same room as the apphance. 

(B) Only one connector shall be used per appliance. 

1212.3 Use of Nonmetallic Gas Hose Connectors. Listed 
nonmetallic gas hose connectors shall be used in accordance 
with the terms of their listing and as follows [NFPA 54:9.6.2]: 

(A) Indoor. Indoor gas hose connectors shall be used only to 
connect laboratory, shop, and ironing equipment requir- 
ing mobility during operation. An equipment shutoff 
valve shall be installed where the connector is attached to 
the building piping. The connector shall be of minimum 
length and shall not exceed six (6) feet (1,829 mm). The 
connector shall not be concealed and shall not extend 
from one (1) room to another or pass through wall parti- 
tions, ceilings, or floors. 

(B) Outdoor. Outdoor gas hose connectors are permitted to 
connect portable outdoor gas-fired appliances. An appli- 1 
ance shutoff valve, a listed quick-disconnect device, or a | 
listed gas convenience outlet shall be installed where the 
connector is attached to the supply piping and in such a 
manner to prevent the accumulation of water or foreign 
matter. This connection shall be made only in the outdoor 
area where the appliance is to be used. The connector | 
length shall not exceed fifteen (15) feet (4,572 mm). 



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1212.4 Connection of Portable and Mobile Industrial Gas 
I Appliance. 

1(A) Where portable industrial gas utilization appliances, or 
appliances requiring mobility or subject to vibration, are 
connected to the building gas piping system by the use of 
a flexible hose, the hose shall be suitable and safe for the 
conditions under which it can be used. [NFPA 54:9.6.3. 1 ] 

I (B) Where industrial gas utilization appliances requiring mo- 
bility are connected to the rigid piping by the use of 
swivel joints or couplings, the swivel joints or couplings 
shall be suitable for the service required, and only the 
minimum number required shall be installed. [NFPA 
54:9.6.3.2] 

I (C) Where industrial gas utilization appliances subject to vi- 
bration are connected to the building piping system by the 
use of all-metal flexible connectors, the connectors shall 
be suitable for the service required. [NFPA 54:9.6.3.3] 

(D) Where flexible connections are used, they shall be of the 
minimum practical length and shall not extend from one 
(1) room to another or pass through any walls, partitions, 
ceilings, or floors. Flexible connections shall not be used in 
any concealed location. They shall be protected against 
physical or thermal damage and shall be provided with gas 
shutoflf valves in readily accessible locations in rigid piping 
upstream jfrom the flexible connections. [NFPA 54:9.6.3.4] 

11212.5 Appliance Shutoff Valves and Connections. Gas uti- 
lization appliance connected to a piping system shall have an 
accessible, approved manual shutoff valve with a nondis- 
placeable valve member, or a listed gas convenience outlet 
I installed within six (6) feet (1.8 m) of the apphance it serves. 
Where a connector is used, the valve shall be installed up- 
stream of the connector. A union or flanged connection shall 
be provided downstream from this valve to permit removal 
of controls. Shutoff valves serving decorative gas appliances 
shall be permitted to be installed in fireplaces if hsted for such 
use. [NFPA 54:9.6.4] 

1212.6 Quick-Disconnect Devices. Quick-disconnect de- 
I vices used to connect appliances to the building piping shall 

be listed. Where they are installed indoors, an approved man- 
ual shutoff valve with a nondisplaceable valve member shall 
be installed upstream of the quick-disconnect device. [NFPA 
54:9.6.5] 

1212.7 Sediment Trap. Where a sediment trap is not incor- 
porated as a part of the gas utilization appliance, a sediment 
trap shall be installed downstream of the appliance shutoff 
valve as close to the inlet of the appliance as practical at the 
time of appliance installation. The sediment trap shall be ei- 
ther a tee fitting with a capped nipple in the bottom outlet, as 
illustrated in Figure 12-1, or other device recognized as an 
effective sediment trap. Illuminating appliances, ranges, 
clothes dryers, decorative vented appliances for installation 
in vented fireplaces, gas fireplaces, and outdoor grills shall 
not be required to be so equipped. [NFPA 54-09:9.6.7] 

1212.8 InstaUation of Piping. Piping shall be installed in a 
manner not to interfere with inspection, maintenance, or serv- 
icing of the gas utilization equipment. [NFPA 54:9.6.8] 



Gas supply \n\e\ 



To 

equipment - 
inlet ' 



-Tee fitting 



Mipp!© — ^ 
Cap -HI 



— f 

3 in. (80 mm) 
minimum 

i 



J 



FIGURE 12-1 METHOD OF INSTALLING A TEE FITTING SEDI- 
MENT TRAP. 

1213.0 Liquefied Petroleum Gas Facilities and Piping. 

Liquefied petroleum gas facilities shall comply with NFPA 
58, Liquefied Petroleum Gas Code, 

1214.0 Pressure Testing and Inspection. 

1214.1 General. 

1214.1.1 Prior to acceptance and initial operation, pip- 
ing installations shall be inspected and pressure- tested to 
determine that the materials, design, fabrication, and in- 
stallation practices comply with the requirements of this 
code. [NFPA 54:8.1.1.1] 

1214.1.2 Inspection shall consist of visual examination 
during or after manufacture, fabrication, assembly, or pres- 
sure tests, as appropriate. Supplementary types of non-de- 
structive inspection techniques, such as magnetic-particle, 
radiographic, and ultrasonic, shall not be required unless 
specifically listed herein or in the engineering design. 
[NFPA 54:8. 1.L2] 

1214.1.3 Where repairs or additions are made following 
the pressure test, the affected piping shall be tested. 
Minor repairs and additions are not required to be pres- 
sure-tested provided that the work is inspected and con- 
nections are tested with a noncorrosive leak-detecting 
fluid or other leak-detecting methods approved by the 
Authority Having Jurisdiction. [NFPA 54:8.1.1.3] 

1214.1.4 Where new branches are installed from the point 
of delivery to new appliances, only the newly installed 
branches shall be required to be pressure-tested. Connec- 
tions between the new piping and the existing piping shall 
be tested with a noncorrosive leak-detecting fluid or ap- 
proved leak-detecting methods. [NFPA 54:8.1.1.4] 

1214.1.5 A piping system shall be tested as a complete 
unit or in sections. Under no circumstances shall a valve 
in a line be used as a bulkhead between gas in one (1) 
section of the piping system and test medium in an adja- 
cent section, unless two (2) valves are installed in series 
with a valved "telltale" located between these valves. A 
valve shall not be subjected to the test pressure unless it 
can be determined that the valve, including the valve- 
closing mechanism, is designed to safely withstand the 
pressure. [NFPA 54:8.1.1.5] 



214 



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1214.1.6 Regulator and valve assemblies fabricated in- 
dependently of the piping system in which they are to be 
installed shall be permitted to be tested with inert gas or 
air at the time of fabrication. [NFPA 54:8.1.1.6] 

1214.1.7 Test Medium. The test medium shall be air, ni- 
trogen, carbon dioxide, or an inert gas. OXYGEN 
SHALL NEVER BE USED. [NFPA 54:8.1.2] 

1214.2 Test Preparation. 

1214.2.1 Pipe joints, including welds, shall be left ex- 
posed for examination during the test. [NFPA 54: 8. L3 . 1 ] 

Exception: Covered or concealed pipe end joints that 
have been previously tested in accordance with this code. 

1214.2.2 Expansion joints shall be provided with tem- 
porary restraints, if required for the additional thrust load 
under test. [NFPA 54:8.1.3.2] 

1214.2.3 Appliances and equipment that are not to be in- 
cluded in the test shall be either disconnected from the 
piping or isolated by blanks, blind flanges, or caps. 
Flanged joints at which blinds are inserted to blank off 
other equipment during the test shall not be required to be 
tested. [NFPA 54:8.1.3.3] 

1214.2.4 Where the piping system is connected to appli- 
ances, equipment, or equipment components designed 
for operating pressures of less than the test pressure, such 
appliances, equipment, or equipment components shall 
be isolated from the piping system by disconnecting 
them and capping the outlets. [NFPA 54:8.1.3.4] 

1214.2.5 Where the piping system is connected to appli- 
ances, equipment, or equipment components designed 
for operating pressures equal to or exceeding the test 
pressure, such appliances shall be isolated from the pip- 
ing system by closing the individual appliance equipment 
shutoff valves. [NFPA 54:8.1.3.5] 

1214.2.6 Testing of piping systems shall be done with 
due regard for the safety of employees and the public 
during the test. Bulkheads, anchorage, and bracing suit- 
ably designed to resist test pressures shall be installed if 
necessary. Prior to testing, the interior of the pipe shall be 
cleared of foreign material. [NFPA 54:8.1 .3.6] 

1214.3 Test Pressure. 

1214.3.1 Test pressure shall be measured with a manome- 
ter or with a pressure-measuring device designed and cal- 
ibrated to read, record, or indicate a pressure loss due to 
leakage during the pressure test period. The source of 
pressure shall be isolated before the pressure tests are 
made. Mechanical gauges used to measure test pressures 
shall have a range such that the highest end of the scale 
does not exceed five (5) times the test pressure. [NFPA 
54:8.L4.1] 

1214.3.2 The test pressure to be used shall be not less 
than one and one-half (1 !/2) times the proposed maximum 
working pressure, but not less than three (3) psi (20 kPa), 
irrespective of design pressure. [NFPA 54:8.1.4.2] 



1214.3.3 Test duration shall be not less than one-half (Vi) 
hour for each five-hundred (500) cubic feet (14 m^) of 
pipe volume or fraction thereof When testing a system 
having a volume less than ten (10) cubic feet (0.28 m^) or 
a system in a single-family dwelling, the test duration 
shall be not less than ten (10) minutes. The duration of 
the test shall not be required to exceed twenty- four (24) 
hours. [NFPA 54:8. L4.3] 

1214.4 Detection of Leaks and Defects. 

1214.4.1 The piping system shall withstand the test pres- 
sure specified without showing any evidence of leakage 
or other defects. Any reduction of test pressures as indi- 
cated by pressure gauges shall be deemed to indicate the 
presence of a leak unless such reduction can be readily 
attributed to some other cause. [NFPA 54:8.1.5.1] 

1214.4.2 The leakage shall be located by means of an ap- 
proved gas detector, a noncorrosive leak detection fluid, 
or other approved leak detection methods. Matches, can- 
dles, open flames, or other methods that provide a source 
of ignition shall not be used. [NFPA 54:8.1 .5.2] 

1214.4.3 Where leakage or other defects are located, the 
affected portion of the piping system shall be repaired or 
replaced and retested [See Section 1214.1.3.]. [NFPA 
54:8.1.5.3] 

1214.5 Piping Systems Lealc Check. 

1214.5.1 Test Gases. Leak checks using fuel gas shall be 
permitted in piping systems that have been pressure-tested 
in accordance with Section 1214.0. [NFPA 54: 8.2.1] 

1214.5.2 Turning Gas On. During the process of turn- 1 
ing gas on into a system of new gas piping, the entire sys- 1 
tem shall be inspected to determine that there are no open 
fittings or ends and that valves at unused outlets are 
closed and plugged or capped. [NFPA 54-09:8.2.2] 

1214.5.3 Leak Check. Immediately after the gas is 
turned on into a new system or into a system that has 
been initially restored after an interruption of service, the 
piping system shall be checked for leakage. Where leak- 
age is indicated, the gas supply shall be shut off until the 
necessary repairs have been made. [NFPA 54:8.2.3] 

1214.5.4 Placing Appliance in Operation. Gas utiliza- 1 
tion appliance shall not be placed in operation until after | 
the piping system has been tested in accordance with 
Section 1214.5.3 and purged in accordance with Section 
1214.6.2. [NFPA 54:8.2.4] 

1214.6 Purging. 

1214.6.1 Removal From Service. When gas piping is to 
be opened for servicing, addition, or modification, the 
section to be worked on shall be turned off from the gas 
supply at the nearest convenient point and the line pres- 
sure vented to the outdoors or to ventilated areas of suf- 
ficient size to prevent accumulation of flammable 
mixtures. The remaining gas in this section of pipe shall 
be displaced with an inert gas as required by Table 12-5. 
[NFPA 54:8.3.1] 



2010 CALIFORNIA PLUMBING CODE 



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TABLE 12-5 

LENGTH OF PIPING REQUIRING PURGING WITH INERT GAS 

FOR SERVICING OR MODIFICATION 

[NFPA 54: TABLE 8.3.1] 



NOMINAL PIPE 
SIZE (in.) 


LENGTH OF PIPING REQUIRING 
PURGING (ft.) 


I'/l 


>50 


3 


>30 


4 


>15 


6 


>10 


8 or larger 


Any length 



For SI units: 1 ft. = 0.305 m. 

1214.6.2 Placing in Operation. When piping full of air 
is placed in operation, the air in the piping shall be dis- 
placed with fuel gas, except where such piping is re- 
quired by Table 12-6 to be purged with an inert gas prior 
to introduction of fuel gas. The air can be safely dis- 
placed with fuel gas provided that a moderately rapid and 
continuous flow of fuel gas is introduced at one (1) end 
of the line and air is vented out at the other end. The fuel 
gas flow shall be continued without interruption until the 
vented gas is free of air. The point of discharge shall not 
be left unattended during purging. After purging, the vent 
shall then be closed. Where required by Table 12-6, the 
air in the piping shall first be displaced with an inert gas, 
and the inert gas shall then be displaced with fuel gas. 
[NFPA 54:8.3.2] 

TABLE 12-6 

LENGTH OF PIPING REQUIRING PURGING WITH INERT GAS 

BEFORE PLACING IN OPERATION 

[NFPA 54: TABLE 8.3.2] 



NOMINAL PIPE 
SIZE (in.) 


LENGTH OF PIPING REQUIRING 
PURGING (ft.) 


3 


>30 


4 


>15 


6 


>10 


8 or larger 


Any length 



For SI units: 1 ft. = 0.305 m. 

1214.6.3 Discharge of Purged Gases. The open end of 
piping systems being purged shall not discharge into con- 
fined spaces or areas where there are sources of ignition 
unless precautions are taken to perform this operation in 
a safe manner by ventilation of the space, control of purg- 
ing rate, and elimination of hazardous conditions. [NFPA 
54:8.3.3] 

I 1214.6.4 Placing Appliances in Operation. After the 

I piping has been placed in operation, appliances shall be 

purged and then placed in operation, as necessary. [NFPA 

54:8.3.4] 

1215.0 Interconnections Between Gas Piping Systems. 

[NFPA 54:5.3] 

1215.1 Interconnections Supplying Separate Users. Where 
two (2) or more meters, or two (2) or more service regulators 
where meters are not provided, are located on the same prem- 



ises and supply separate users, the gas-piping systems shall 
not be interconnected on the outlet side of the meters or serv- 
ice regulators. [NFPA 54:5.3.1] 

1215.2 Interconnections for Standby Fuels. Where supple- 
mentary gas for standby use is connected downstream from a 
meter or a service regulator where a meter is not provided, a de- 
vice to prevent backflow shall be installed. [NFPA 54:5.3.2.1] 
A three-way valve installed to admit the standby supply and at 
the same time shut off the regular supply shall be permitted to 
be used for this purpose. [NFPA 54:5.3.2.2] 

1216.0 Required Gas Supply. 

1216.1 The following regulations, as set forth in this section 
and in Section 1217.0, Required Gas Piping Size, shall be the 
standard for the installation of gas piping. Natural gas regu- 
lations and tables are based on the use of gas having a specific 
gravity of sixty-hundredths (0.60), supplied at six (6) to eight 
(8) inches (152-203 mm) water column pressure at the out- 
let of the meter or regulator. For undiluted liquefied petro- 
leum gas, gas piping shall be permitted to be sized at eleven 
(11) inches (279 mm) water column pressure at the outlet of 
the meter or regulator and specific gravity of one and fifty- 
hundredths(1.50). 

Note: Where gas of a different specific gravity is to be deliv- 
ered, the serving gas supplier should be contacted for specific 
gravity conversion factors to use in sizing piping systems from 
the pipe sizing tables in this chapter. 

1216.2 The hourly volume of gas required at each piping out- 
let shall be taken as not less than the maximum hourly rating 
as specified by the manufacturer of the appliance or appli- 
ances to be connected to each such outlet. 

1216.3 Where the gas appliances to be installed have not been 
definitely specified, Table 12-1 shall be permitted to be used 
as a reference to estimate requirements of typical appliances. 

To obtain the cubic feet per hour (L/sec.) of gas required, 
divide input of appliances by the average Btu (Watt-hour) 
heating value per cubic foot (L) of the gas. The average Btu 
(Watt-hour) per cubic foot (L) of the gas in the area of the in- 
stallation shall be permitted to be obtained from the serving 
gas supplier. 

1216.4 The size of the supply piping outlet for any gas appH- 
ance shall not be less than one-half (1/2) inch (15 mm). 

The minimum size of any piping outlet for a mobile home 
shall be three-quarters (%) of an inch (20 mm). 

1217.0 Required Gas Piping Size. 

1217.1 Pipe Sizing Methods. Where the pipe size is to be | 
determined using any of the methods in Sections 1217.1.1 
through 1217.1.3, the diameter of each pipe segment shall be 
obtained from the pipe-sizing tables in Section 1217.2 or from 
the sizing equations in Section 1217.3. [NFPA 54:6.1] 

1217.1.1 Longest Length Method. The pipe size of each | 
section of gas piping shall be determined using the longest 
length of piping from the point of delivery to the most re- 



216 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



mote outlet and the load of the section (See calculation ex- 
ample in Figure 12-2). [NFPA 54:6.1.1] 

1217.1.2 Branch Length Method. Pipe shall be sized 
as follows: [NFPA 54:6.1.2] 

(A) Pipe size of each section of the longest pipe run from 
the point of delivery to the most remote outlet shall 
be determined using the longest run of piping and 
the load of the section. 

(B) The pipe size of each section of branch piping not 
previously sized shall be determined using the 
length of piping from the point of delivery to the 
most remote outlet in each branch and the load of 
the section. 



I 1217.1.3 Hybrid Pressure. The pipe size for each sec- 
tion of higher-pressure gas piping shall be determined 
using the longest length of piping from the point of de- 
livery to the most remote line pressure regulator. The 
pipe size from the hne pressure regulator to each outlet 
shall be determined using the length of piping from the 
regulator to the most remote outlet served by the regula- 
tor. [NFPA 54:6.1.3] 

I 1217.2 Tables for Sizing Gas-Piping Systems. Tables 12-8 
through 12-41 shall be used to size gas piping in conjunction 
with one (1) of the methods described in Sections 1217.1.1 
through 1217.1.3. [NFPA 54:6.2] 

I 1217.3 Sizing Equations. The inside diameter of smooth- wall 
pipe or tubing shall be determined by the sizing equations 12- 
1 or 12-2, using the equivalent pipe length determmed by Sec- 
tions 1217.1.1 through 1217.1.3. [NFPA 54:6.4] 



(Equation 12-1 Low-Pressure Gas Formula (Less than 1.5 
psi [10.3 kPa]): [NFPA 54:6.4.1] 



D= 



Q' 



381 



19.17 



/A// \ Q- 
XCrxLj 



206 



where: 

D = inside diameter of pipe, inches 

Q = input rate appliance(s), cubic feet per hour at 60°F 

(16^C) and 30-inch (759 mm) mercury column 
Pi = upstream pressure, psia (Pj + 14.7) 

P2 — downstream pressure, psia (P2+ 14.7) 

L = equivalent length of pipe, feet 

AH = pressure drop, inches water column (27.7 in. H2O '■ 
I psi) 



Equation 12-2 High-Pressure Gas Formula (1.5 psi [10.3 I 
kPa] and above): [NFPA 54:6.4.2] | 



D= 



)0.381 



[ (P/-P/).Y J 
L CrxL J 



18.93 M^ 



0.206 



where: 

D = inside diameter of pipe, inches 

Q = input rate appliance(s), cubic feet per hour at 60 °F 

(16*^0) and 30-inch (759 mm) mercury column 
Pi = upstream pressure, psia (Pi +14.7) 

P2 = downstream pressure, psia {P2 + 14.7) 

L = equivalent length of pipe, feet 

AH = pressure drop, inches water column (27.7 in. H2O = 
Ipsi) 



TABLE 12-4 

Cff AND YFOR NATURAL GAS AND UNDILUTED PROPANE 

AT STANDARD CONDITIONS [NFPA 54: TABLE 6.4.2] 



FORMULA FACTORS GAS 


Cr 


Y 


Natural Gas 


0.6094 


0.9992 


Undiluted Propane 


1.2462 


0.9910 



kPa; 1 psi 



= 0.305 m; 1 in. water column = 
= 6.894 kPa; 1,000 Btu/h = 0.293 kW. 



0.249 



1217.4 To determine the size of each section of pipe in any 
system within the range of the Table, proceed as follows: | 

(A) Measure the length of the pipe from the gas meter loca- 
tion to the most remote outlet on the system. 

(B) Select the length in feet column and row showing the dis- 1 
tance, or the next longer distance if the table does not 
give the exact length. 

(C) Starting at the most remote outlet, find in the row just se- 
lected the gas demand for that outlet. If the exact figure 
of demand is not shown, choose the next larger figure in 
the row. 

(D) At the top of this column will be found the correct size 
of pipe. 

(E) Using this same row, proceed in a similar manner for 
each section of pipe serving this outlet. For each section 
of pipe, determine the total gas demand supplied by that 
section. Where gas piping sections serve both heating 
and cooling appliances and the installation prevents both | 
units from operating simultaneously, only the larger of 
the two (2) demand loads needs be used in sizing these 
sections. 

(F) Size each section of branch piping not previously sized 
by measuring the distance from the gas meter location to 
the most remote outlet in that branch and follow the pro- 
cedures of steps B, C, D, and E above. | 



2010 CALIFORNIA PLUMBING CODE 



217 



FUEL PIPING 



Note: Size branch piping in the order of their distance from 
the meter location, beginning with the most distant outlet not 
previously sized. 

1217.5 For conditions other than those covered by Section 
1217.1, such as longer runs or greater gas demands, the size 
of each gas piping system shall be determined by standard 
engineering methods acceptable to the Authority Having Ju- 
risdiction, and each such system shall be so designed that the 
total pressure drop between the meter or other point of sup- 
ply and any outlet when full demand is being supplied to all 

I outlets, shall comply with the requirements of Section 1209.4. 

1217.6 Where the gas pressure exceeds fourteen (14) inches 
(356 mm) or less than six (6) inches (152 mm) of water col- 
umn, or when diversity demand factors are used, the design, 
pipe, sizing, materials, location, and use of such systems first 
shall be approved by the Authority Having Jurisdiction. Pip- 
ing systems designed for pressures exceeding the serving gas 
supplier's standard delivery pressure shall have prior verifi- 
cation from the gas supplier of the availability of the design 
pressure. 



218 2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



I FIGURE 12-2 EXAMPLE ILLUSTRATING USE OFTABLES 12-1 AND 12-8 

Problem: Determine the required pipe size of each section and outlet of the piping system shown in Figure 12-2. Gas to be used 
has a specific gravity of sixty-hundredths (0.60) and eleven-hundred (1,100) Btu per cubic foot (11.4 Watt-hour/L), delivered 
at eight (8) inch (203 mm) water column pressure. 









150 000 btu/ 


h 






• (43 950 W) 






Furnace 






30 gallon (113.61) 




O 


Automatic 




3 Water Heater 




m 


q - c , 




H 


3 H 


X. 




a 


r" 
m 








H 


4^ > 


Section 3 




Secton 2 Section 1 > 


3 - 


20' 




10' 10' 


3 








««(3048 mm)_(3048 mm)_ 


T 






1^ 




i^ 




o 


s 




CO 

o 




5 


fV3 




;fc-^ 




r- 


3 




«>q 


o 


-T !I! 


^ 


g_ 




5 

1— 


S- "= Gas 

3 - Refrigerator 


V 


o 


3 


Gas Meter 




r 




• 
Range 


FIGURE 12-2 EXAMPLE ILLUSTRATING USE OFTABLES 12-1 AND 12-8 



Solution: 

( 1 ) M aximum gas demand of outlet A — 

32 cubic feet per hour (0.21 L/sec.) (from Table 12-1). 
Maximum gas demand of outlet B — 

3 cubic feet per hour (0.02 L/sec.) (from Table 12-1). 
Maximum gas demand of outlet C — 

59 cubic feet per hour (0.46 L/sec.) (from Table 12-1). 
Maximum gas demand of outlet D — 

136 cubic feetper hour (1.1 L/sec.) (150,000 Btu/hour [43,950 W]) divided by 1,100 Btu per cubic foot (11.4 Watt-hour/L) 

(2) The length of pipe from the gas meter to the most remote outlet (outlet A) is 60 feet (18,288 mm). 

I (3) Using the length in feet column row marked 60 feet (18,288 mm) in Table 12-8: 

Outlet A, supplying 32 cubic feet per hour (0.2 1 L/sec), requires one-half (l/i) inch ( 1 5 mm) pipe. Section 1 , supplying out- 
lets A and B, or 35 cubic feet per hour (0.24 L/sec.) requires one-half (Vi) inch (15 mm) pipe. 

Section 2, supplying outlets A, B, and C, or 94 cubic feet per hour (0.7 L/sec.) requires three-quarter QA) inch (20 mm) pipe. 
I Section 3, supplying outlets A, B, C, and D, or 230 cubic feet per hour (1.8 L/sec), requires one (1) inch (25 mm) pipe. 
I (4) Using the column marked 60 feet (18,288 mm) in Table 12-8 (no column for actual length of 55 feet [16,764 mm]: 

Outlet B supplying 3 cubic feet per hour (0.02 L/sec), requires one-half (Vi) inch (15 mm) pipe. 

Outlet C, supplying 59 cubic feet per hour (0.46 L/sec), requires one-half (!/2) inch (15 mm) pipe. 
I (5) Using the column marked 60 feet (18,288 mm) in Table 12-8: 
I Outlet D, supplying 136 cubic feet per hour (1.1 L/sec), requires QA) inch (20 mm) pipe. 



2010 CALIFORNIA PLUMBING CODE 



219 



FUEL PIPING 



TABLE 12-8 

SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(b)] 





GAS: 


NATURAL 


INLET PRESSURE: 


LESS THAN 2 psi 


PRESSURE DROP: 


0.5 In w.c. 


SPECIFIC GRAVITY: 


0.60 




PIPE SIZE (inch) 


NOMINAL: 


V2 


y^ 


1 


VA 


V/2 


2 


2V2 


3 


4 


5 


6 


8 


10 


12 


ACTUAL ID: 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


5.047 


6.065 


7.981 


10.020 


11.938 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


172 


360 


678 


1,390 


2,090 


4,020 


6,400 


11,300 


23,100 


41,800 


67,600 


139,000 


252,000 


399,000 


20 


118 


247 


466 


957 


1,430 


2,760 


4,400 


7,780 


15,900 


28,700 


46,500 


95,500 


173,000 


275,000 


30 


95 


199 


374 


768 


1,150 


2,220 


3,530 


6,250 


12,700 


23,000 


37,300 


76,700 


139,000 


220,000 


40 


81 


170 


320 


657 


985 


1,900 


3,020 


5,350 


10,900 


19,700 


31,900 


65,600 


119,000 


189,000 


50 


72 


151 


284 


583 


873 


1,680 


2,680 


4,740 


9,660 


17,500 


28,300 


58,200 


106,000 


167,000 


60 


65 


137 


257 


528 


791 


1,520 


2,430 


4,290 


8,760 


15,800 


25,600 


52,700 


95,700 


152,000 


70 


60 


126 


237 


486 


728 


1,400 


2,230 


3,950 


8,050 


14,600 


23,600 


48,500 


88,100 


139,000 


80 


56 


117 


220 


452 


677 


1,300 


2,080 


3,670 


7,490 


13,600 


22,000 


45,100 


81,900 


130,000 


90 


52 


110 


207 


424 


635 


1,220 


1,950 


3,450 


7,030 


12,700 


20,600 


42,300 


76,900 


122,000 


100 


50 


104 


195 


400 


600 


1,160 


1,840 


3,260 


6,640 


12,000 


19,500 


40,000 


72,600 


115,000 


125 


44 


92 


173 


355 


532 


1,020 


1,630 


2,890 


5,890 


10,600 


17,200 


35,400 


64,300 


102,000 


150 


40 


83 


157 


322 


482 


928 


1,480 


2,610 


5,330 


9,650 


15,600 


32,100 


58,300 


92,300 


175 


37 


77 


144 


296 


443 


854 


1,360 


2,410 


4,910 


8,880 


14,400 


29,500 


53,600 


84,900 


200 


34 


71 


134 


275 


412 


794 


1,270 


2,240 


4,560 


8,260 


13,400 


27,500 


49,900 


79,000 


250 


30 


63 


119 


244 


366 


704 


1,120 


1,980 


4,050 


7,320 


11,900 


24,300 


44,200 


70,000 


300 


27 


57 


108 


221 


331 


638 


1,020 


1,800 


3,670 


6,630 


10,700 


22,100 


40,100 


63,400 


350 


25 


53 


99 


203 


305 


587 


935 


1,650 


3,370 


6,100 


9,880 


20,300 


36,900 


58,400 


400 


23 


49 


92 


189 


283 


546 


870 


1,540 


3,140 


5,680 


9,190 


18,900 


34,300 


54,300 


450 


22 


46 


86 


177 


266 


512 


816 


1,440 


2,940 


5,330 


8,620 


17,700 


32,200 


50,900 


500 


21 


43 


82 


168 


251 


484 


771 


1,360 


2,780 


5,030 


8,150 


16,700 


30,400 


48,100 


550 


20 


41 


78 


159 


239 


459 


732 


1,290 


2,640 


4,780 


7,740 


15,900 


28,900 


45,700 


600 


19 


39 


74 


152 


228 


438 


699 


1,240 


2,520 


4,560 


7,380 


15,200 


27,500 


43,600 


650 


18 


38 


71 


145 


218 


420 


669 


1,180 


2,410 


4,360 


7,070 


14,500 


26,400 


41,800 


700 


17 


36 


68 


140 


209 


403 


643 


1,140 


2,320 


4,190 


6,790 


14,000 


25,300 


40,100 


750 


17 


35 


66 


135 


202 


389 


619 


1,090 


2,230 


4,040 


6,540 


13,400 


24,400 


38,600 


800 


16 


34 


63 


130 


195 


375 


598 


1,060 


2,160 


3,900 


6,320 


13,000 


23,600 


37,300 


850 


16 


33 


61 


126 


189 


363 


579 


1,020 


2,090 


3,780 


6,110 


12,600 


22,800 


36,100 


900 


15 


32 


59 


122 


183 


352 


561 


992 


2,020 


3,660 


5,930 


12,200 


22,100 


35,000 


950 


15 


31 


58 


118 


178 


342 


545 


963 


1,960 


3,550 


5,760 


11,800 


21,500 


34,000 


1,000 


14 


30 


56 


115 


173 


333 


530 


937 


1,910 


3,460 


5,600 


11,500 


20,900 


33,100 


1,100 


14 


28 


53 


109 


164 


316 


503 


890 


1,810 


3,280 


5,320 


10,900 


19,800 


31,400 


1,200 


13 


27 


51 


104 


156 


301 


480 


849 


1,730 


3,130 


5,070 


10,400 


18,900 


30,000 


1,300 


12 


26 


49 


100 


150 


289 


460 


813 


1,660 


3,000 


4,860 


9,980 


18,100 


28,700 


1,400 


12 


25 


47 


96 


144 


277 


442 


781 


1,590 


2,880 


4,670 


9,590 


17,400 


27,600 


1,500 


11 


24 


45 


93 


139 


267 


426 


752 


1,530 


2,780 


4,500 


9,240 


16,800 


26,600 


1,600 


11 


23 


44 


89 


134 


258 


411 


727 


1,480 


2,680 


4,340 


8,920 


16,200 


25,600 


1,700 


11 


22 


42 


86 


130 


250 


398 


703 


1,430 


2,590 


4,200 


8,630 


15,700 


24,800 


1,800 


10 


22 


41 


84 


126 


242 


386 


682 


1,390 


2,520 


4,070 


8,370 


15,200 


24,100 


1,900 


10 


21 


40 


81 


122 


235 


375 


662 


1,350 


2,440 


3,960 


8,130 


14,800 


23,400 


2,000 


NA 


20 




39 


79 


119 


229 


364 


644 


1,310 


2,380 


3,850 


7,910 


14,400 


22,700 



NA means a flow of less than 10 cfh. 

Note: All table entries are rounded to 3 significant digits. 



220 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



TABLE 12-9 

SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(c)] 





GAS: 


NATURAL 


INLET PRESSURE: 


2.0 psi 


PRESSURE DROP: 


1.0 psi 


SPECIFIC GRAVITY: 


0-60 




PIPE SIZE (inch) 


NOMINAL: 


Vz 


^4 


1 


IVa 


VA 


2 


2V2 


3 


4 


ACTUAL ID: 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


1,510 


3,040 


5,560 


11,400 


17,100 


32,900 


52,500 


92,800 


189,000 


20 


1,070 


2,150 


3,930 


8,070 


12,100 


23,300 


37,100 


65,600 


134,000 


30 


869 


1,760 


3,210 


6,590 


9,880 


19,000 


30,300 


53,600 


109,000 


40 


753 


1,520 


2,780 


5,710 


8,550 


16,500 


26,300 


46,400 


94,700 


50 


673 


1,360 


2,490 


5,110 


7,650 


14,700 


23,500 


41,500 


84,700 


60 


615 


1,240 


2,270 


4,660 


6,980 


13,500 


21,400 


37,900 


77,300 


70 


569 


1,150 


2,100 


4,320 


6,470 


12,500 


19,900 


35,100 


71,600 


80 


532 


1,080 


1,970 


4,040 


6,050 


11,700 


18,600 


32,800 


67,000 


90 


502 


1,010 


1,850 


3,810 


5,700 


11,000 


17,500 


30,900 


63,100 


100 


462 


934 


1,710 


3,510 


5,260 


10,100 


16,100 


28,500 


58,200 


125 


414 


836 


1,530 


3,140 


4,700 


9,060 


14,400 


25,500 


52,100 


150 


372 


751 


1,370 


2,820 


4,220 


8,130 


13,000 


22,900 


46,700 


175 


344 


695 


1,270 


2,601 


3,910 


7,530 


12,000 


21,200 


43,300 


200 


318 


642 


1,170 


2,410 


3,610 


6,960 


11,100 


19,600 


40,000 


250 


279 


583 


1,040 


2,140 


3,210 


6,180 


9,850 


17,400 


35,500 


300 


253 


528 


945 


1,940 


2,910 


5,600 


8,920 


15,800 


32,200 


350 


232 


486 


869 


1,790 


2,670 


5,150 


8,210 


14,500 


29,600 


400 


216 


452 


809 


1,660 


2,490 


4,790 


7,640 


13,500 


27,500 


450 


203 


424 


759 


1,560 


2,330 


4,500 


7,170 


12,700 


25,800 


500 


192 


401 


717 


1,470 


2,210 


4,250 


6,770 


12,000 


24,400 


550 


182 


381 


681 


1,400 


2,090 


4,030 


6,430 


11,400 


23,200 


600 


174 


363 


650 


1,330 


2,000 


3,850 


6,130 


10,800 


22,100 


650 


166 


348 


622 


1,280 


1,910 


3,680 


5,870 


10,400 


21,200 


700 


160 


334 


598 


1,230 


1,840 


3,540 


5,640 


9,970 


20,300 


750 


154 


322 


576 


1,180 


1,770 


3,410 


5,440 


9,610 


19,600 


800 


149 


311 


556 


1,140 


1,710 


3,290 


5,250 


9,280 


18,900 


850 


144 


301 


538 


1,100 


1,650 


3,190 


5,080 


8,980 


18,300 


900 


139 


292 


522 


1,070 


1,600 


3,090 


4,930 


8,710 


17,800 


950 


135 


283 


507 


1,040 


1,560 


3,000 


4,780 


8,460 


17,200 


1,000 


132 


275 


493 


1,010 


1,520 


2,920 


4,650 


8,220 


16,800 


1,100 


125 


262 


468 


960 


1,440 


2,770 


4,420 


7,810 


15,900 


1,200 


119 


250 


446 


917 


1,370 


2,640 


4,220 


7,450 


15,200 


1,300 


114 


239 


427 


878 


1,320 


2,530 


4,040 


7,140 


14,600 


1,400 


110 


230 


411 


843 


1,260 


2,430 


3,880 


6,860 


14,000 


1,500 


106 


221 


396 


812 


1,220 


2,340 


3,740 


6,600 


13,500 


1,600 


102 


214 


382 


784 


1,180 


2,260 


3,610 


6,380 


13,000 


1,700 


99 


207 


370 


759 


1,140 


2,190 


3,490 


6,170 


12,600 


1,800 


96 


200 


358 


736 


1,100 


2,120 


3,390 


5,980 


12,200 


1,900 


93 


195 


348 


715 


1,070 


2,060 


3,290 


5,810 


11,900 


2,000 


91 


189 


339 


695 


1,040 


2,010 


3,200 


5,650 


11,500 



Note: All table entries are rounded to 3 significant digits. 



2010 CALIFORNIA PLUMBING CODE 



221 



FUEL PIPING 



TABLE 12-10 

SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(d)] 





GAS: 


NATURAL 


INLET PRESSURE: 


3.0 psi 


PRESSURE DROP: 


2.0 psi 


SPECIFIC GRAVITY: 


0.60 




PIPE SIZE (inch) 


NOMINAL: 


V2 


y4 


1 


VA 


V/2 


2 


2y2 


3 


4 


ACTUAL ID: 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


2,350 


4,920 


9,270 


19,000 


28,500 


54,900 


87,500 


155,000 


316,000 


20 


1,620 


3,380 


6,370 


13,100 


19,600 


37,700 


60,100 


106,000 


217,000 


30 


1,300 


2,720 


5,110 


10,500 


15,700 


30,300 


48,300 


85,400 


174,000 


40 


1,110 


2,320 


4,380 


8,990 


13,500 


25,900 


41,300 


73,100 


149,000 


50 


985 


2,060 


3,880 


7,970 


11,900 


23,000 


36,600 


64,800 


132,000 


60 


892 


1,870 


3,520 


7,220 


10,800 


20,800 


33,200 


58,700 


120,000 


70 


821 


1,720 


3,230 


6,640 


9,950 


19,200 


30,500 


54,000 


110,000 


80 


764 


1,600 


3,010 


6,180 


9,260 


17,800 


28,400 


50,200 


102,000 


90 


717 


1,500 


2,820 


5,800 


8,680 


16,700 


26,700 


47,100 


96,100 


100 


677 


1,420 


2,670 


5,470 


8,200 


15,800 


25,200 


44,500 


90,800 


125 


600 


1,250 


2,360 


4,850 


7,270 


14,000 


22,300 


39,500 


80,500 


150 


544 


1,140 


2,140 


4,400 


6,590 


12,700 


20,200 


35,700 


72,900 


175 


500 


1,050 


1,970 


4,040 


6,060 


11,700 


18,600 


32,900 


67,100 


200 


465 


973 


1,830 


3,760 


5,640 


10,900 


17,300 


30,600 


62,400 


250 


412 


862 


1,620 


3,330 


5,000 


9,620 


15,300 


27,100 


55,300 


300 


374 


781 


1,470 


3,020 


4,530 


8,720 


13,900 


24,600 


50,100 


350 


344 


719 


1,350 


2,780 


4,170 


8,020 


12,800 


22,600 


46,100 


400 


320 


669 


1,260 


2,590 


3,870 


7,460 


11,900 


21,000 


42,900 


450 


300 


627 


1,180 


2,430 


3,640 


7,000 


11,200 


19,700 


40,200 


500 


283 


593 


1,120 


2,290 


3,430 


6,610 


10,500 


18,600 


38,000 


550 


269 


563 


1,060 


2,180 


3,260 


6,280 


10,000 


17,700 


36,100 


600 


257 


537 


1,010 


2,080 


3,110 


5,990 


9,550 


16,900 


34,400 


650 


246 


514 


969 


1,990 


2,980 


5,740 


9,150 


16,200 


33,000 


700 


236 


494 


931 


1,910 


2,860 


5,510 


8,790 


15,500 


31,700 


750 


228 


476 


897 


1,840 


2,760 


5,310 


8,470 


15,000 


30,500 


800 


220 


460 


866 


1,780 


2,660 


5,130 


8,180 


14,500 


29,500 


850 


213 


445 


838 


1,720 


2,580 


4,960 


7,910 


14,000 


28,500 


900 


206 


431 


812 


1,670 


2,500 


4,810 


7,670 


13,600 


27,700 


950 


200 


419 


789 


1,620 


2,430 


4,670 


7,450 


13,200 


26,900 


1,000 


195 


407 


767 


1,580 


2,360 


4,550 


7,240 


12,800 


26,100 


1,100 


185 


387 


729 


1,500 


2,240 


4,320 


6,890 


12,200 


24,800 


1,200 


177 


369 


695 


1,430 


2,140 


4,120 


6,570 


11,600 


23,700 


1,300 


169 


353 


666 


1,370 


2,050 


3,940 


6,290 


11,100 


22,700 


1,400 


162 


340 


640 


1,310 


1,970 


3,790 


6,040 


10,700 


21,800 


1,500 


156 


327 


616 


1,270 


1,900 


3,650 


5,820 


10,300 


21,000 


1,600 


151 


316 


595 


1,220 


1,830 


3,530 


5,620 


10,000 


20,300 


1,700 


146 


306 


576 


1,180 


1,770 


3,410 


5,440 


9,610 


19,600 


1,800 


142 


296 


558 


1,150 


1,720 


3,310 


5,270 


9,320 


19,000 


1,900 


138 


288 


542 


1,110 


1,670 


3,210 


5,120 


9,050 


18,400 


2,000 


134 


280 


527 


1,080 


1,620 


3,120 


4,980 


8,800 


18,000 



Note: All table entries are rounded to 3 significant digits 



222 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



TABLE 12-11 

SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.2(e)] 





GAS: 


NATURAL 


INLET PRESSURE: 


5.0 psi 


PRESSURE DROP: 


3.5 psi 


SPECIFIC GRAVITY: 


0.60 




PIPE SIZE (Inch) 


NOMINAL: 


V2 


% 


1 


VA 


IV2 


2 


2V2 


3 


4 


ACTUAL ID: 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


3,190 


6,430 


11,800 


24,200 


36,200 


69,700 


111,000 


196,000 


401,000 


20 


2,250 


4,550 


8,320 


17,100 


25,600 


49,300 


78,600 


139,000 


283,000 


30 


1,840 


3,720 


6,790 


14,000 


20,900 


40,300 


64,200 


113,000 


231,000 


40 


1,590 


3,220 


5,880 


12,100 


18,100 


34,900 


55,600 


98,200 


200,000 


50 


1,430 


2,880 


5,260 


10,800 


16,200 


31,200 


49,700 


87,900 


179,000 


60 


1,300 


2,630 


4,800 


9,860 


14,800 


28,500 


45,400 


80,200 


164,000 


70 


1,200 


2,430 


4,450 


9,130 


13,700 


26,400 


42,000 


74,300 


151,000 


80 


1,150 


2,330 


4,260 


8,540 


12,800 


24,700 


39,300 


69,500 


142,000 


90 


1,060 


2,150 


3,920 


8,050 


12,100 


23,200 


37,000 


65,500 


134,000 


100 


979 


1,980 


3,620 


7,430 


11,100 


21,400 


34,200 


60,400 


123,000 


125 


876 


1,770 


3,240 


6,640 


9,950 


19,200 


30,600 


54,000 


110,000 


150 


786 


1,590 


2,910 


5,960 


8,940 


17,200 


27,400 


48,500 


98,900 


175 


728 


1,470 


2,690 


5,520 


8,270 


15,900 


25,400 


44,900 


91,600 


200 


673 


1,360 


2,490 


5,100 


7,650 


14,700 


23,500 


41,500 


84,700 


250 


558 


1,170 


2,200 


4,510 


6,760 


13,000 


20,800 


36,700 


74,900 


300 


506 


1,060 


1,990 


4,090 


6,130 


11,800 


18,800 


33,300 


67,800 


350 


465 


973 


1,830 


3,760 


5,640 


10,900 


17,300 


30,600 


62,400 


400 


433 


905 


1,710 


3,500 


5,250 


10,100 


16,100 


28,500 


58,100 


450 


406 


849 


1,600 


3,290 


4,920 


9,480 


15,100 


26,700 


54,500 


500 


384 


802 


1,510 


3,100 


4,650 


8,950 


14,300 


25,200 


51,500 


550 


364 


762 


1,440 


2,950 


4,420 


8,500 


13,600 


24,000 


48,900 


600 


348 


727 


1,370 


2,810 


4,210 


8,110 


12,900 


22,900 


46,600 


650 


333 


696 


1,310 


2,690 


4,030 


7,770 


12,400 


21,900 


44,600 


700 


320 


669 


1,260 


2,590 


3,880 


7,460 


11,900 


21,000 


42,900 


750 


308 


644 


1,210 


2,490 


3,730 


7,190 


11,500 


20,300 


41,300 


800 


298 


622 


1,170 


2,410 


3,610 


6,940 


11,100 


19,600 


39,900 


850 


288 


602 


1,130 


2,330 


3,490 


6,720 


10,700 


18,900 


38,600 


900 


279 


584 


1,100 


2,260 


3,380 


6,520 


10,400 


18,400 


37,400 


950 


271 


567 


1,070 


2,190 


3,290 


6,330 


10,100 


17,800 


36,400 


1,000 


264 


551 


1,040 


2,130 


3,200 


6,150 


9,810 


17,300 


35,400 


1,100 


250 


524 


987 


2,030 


3,030 


5,840 


9,320 


16,500 


33,600 


1,200 


239 


500 


941 


1,930 


2,900 


5,580 


8,890 


15,700 


32,000 


1,300 


229 


478 


901 


1,850 


2,770 


5,340 


8,510 


15,000 


30,700 


1,400 


220 


460 


866 


1,780 


2,660 


5,130 


8,180 


14,500 


29,500 


1,500 


212 


443 


834 


1,710 


2,570 


4,940 


7,880 


13,900 


28,400 


1,600 


205 


428 


806 


1,650 


2,480 


4,770 


7,610 


13,400 


27,400 


1,700 


198 


414 


780 


1,600 


2,400 


4,620 


7,360 


13,000 


26,500 


1,800 


192 


401 


756 


1,550 


2,330 


4,480 


7,140 


12,600 


25,700 


1,900 


186 


390 


734 


1,510 


2,260 


4,350 


6,930 


12,300 


25,000 


2,000 


181 


379 


714 


1,470 


2,200 


4,230 


6,740 


11,900 


24,300 



Note: All table entries are rounded to 3 significant digits. 



2010 CALIFORNIA PLUMBING CODE 



223 



FUEL PIPING 



TABLE 12-12 

SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(f)] 



















GAS: 


NATURAL 






INLET PRESSURE: 


LESS THAN 2 psi 


PRESSURE DROP: 


0.3 In. w.c. 


SPECIFIC GRAVITY: 


0.60 




TUBE SIZE (inch) 


NOMINAL: 


K&L: 


% 


% 


Vz 


% 


^4 


1 


1V4 


Vh 


2 


ACR: 


Ve 


V2 


% 


V. 


% 


Vk 


1% 


- 


- 


OUTSIDE: 


0.375 


0.500 


0.625 


0.750 


0.875 


1.125 


1.375 


1.625 


2.125 


INSIDE:* 


0.305 


0.402 


0.527 


0.652 


0.745 


0.995 


1.245 


1.481 


1.959 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


20 


42 


85 


148 


210 


448 


806 


1,270 


2,650 


20 


14 


29 


58 


102 


144 


308 


554 


873 


1,820 


30 


11 


23 


47 


82 


116 


247 


445 


701 


1,460 


40 


10 


20 


40 


70 


99 


211 


381 


600 


1,250 


50 


NA 


17 


35 


62 


88 


187 


337 


532 


1,110 


60 


NA 


16 


32 


'^(i 


79 


170 


306 


482 


1,000 


70 


NA 


14 


29 


52 


73 


156 


281 


443 


924 


80 


NA 


13 


27 


48 


68 


145 


262 


413 


859 


90 


NA 


13 


26 


45 


64 


136 


245 


387 


806 


100 


NA 


12 


24 


43 


60 


129 


232 


366 


761 


125 


NA 


11 


22 


38 


53 


114 


206 


324 


675 


150 


NA 


10 


20 


34 


48 


103 


186 


294 


612 


175 


NA 


NA 


18 


31 


45 


95 


171 


270 


563 


200 


NA 


NA 


17 


29 


41 


89 


159 


251 


523 


250 


NA 


NA 


15 


26 


37 


78 


141 


223 


464 


300 


NA 


NA 


13 


23 


33 


71 


128 


202 


420 


350 


NA 


NA 


12 


22 


31 


65 


118 


186 


387 


400 


NA 


NA 


11 


20 


28 


61 


110 


173 


360 


450 


NA 


NA 


11 


19 


27 


57 


103 


162 


338 


500 


NA 


NA 


10 


18 


25 


54 


97 


153 


319 


550 


NA 


NA 


NA 


17 


24 


51 


92 


145 


303 


600 


NA 


NA 


NA 


16 


23 


49 


88 


139 


289 


650 


NA 


NA 


NA 


15 


22 


47 


84 


133 


277 


700 


NA 


NA 


NA 


15 


21 


45 


81 


128 


266 


750 


NA 


NA 


NA 


14 


20 


43 


78 


123 


256 


800 


NA 


NA 


NA 


14 


20 


42 


75 


119 


247 


850 


NA 


NA 


NA 


13 


19 


40 


73 


115 


239 


900 


NA 


NA 


NA 


13 


18 


39 


71 


111 


232 


950 


NA 


NA 


NA 


13 


18 


38 


69 


108 


225 


1,000 


NA 


NA 


NA 


12 


17 


37 


67 


105 


219 


1,100 


NA 


NA 


NA 


12 


16 


35 


63 


100 


208 


1,200 


NA 


NA 


NA 


11 


16 


34 


60 


95 


199 


1,300 


NA 


NA 


NA 


11 


15 


32 


58 


91 


190 


1,400 


NA 


NA 


NA 


10 


14 


31 


56 


88 


183 


1,500 


NA 


NA 


NA 


NA 


14 


30 


54 


84 


176 


1,600 


NA 


NA 


NA 


NA 


13 


29 


52 


82 


170 


1,700 


NA 


NA 


NA 


NA 


13 


28 


50 


79 


164 


1,800 


NA 


NA 


NA 


NA 


13 


27 


49 


77 


159 


1,900 


NA 


NA 


NA 


NA 


12 


26 


47 


74 


155 


2,000 


NA 


NA 


NA 


NA 


12 


25 


46 


72 


151 



NA means a flow of less than 10 cfh. 

Note: All table entries are rounded to 3 significant digits. 

*Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products. 



224 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



TABLE 12-13 

SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(g)] 



















GAS: 


NATURAL 






INLET PRESSURE: 


LESS THAN 2 psi 


PRESSURE DROP: 


0.5 in. w.c. 


SPECIFIC GRAVITY: 


0.60 




TUBE SIZE (inch) 


NOMINAL: 


K&L: 


% 


% 


Vi 


% 


% 


1 


VA 


V/2 


2 


ACR: 


H 


V2 


% 


% 


% 


IVb 


1% 


- 


- 


OUTSIDE: 


0.375 


0.500 


0.625 


0.750 


0.875 


1.125 


1.375 


1.625 


2.125 


INSIDE:* 


0.305 


0.402 


0.527 


0.652 


0.745 


0.995 


1.245 


1.481 


1.959 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


27 


55 


111 


195 


276 


590 


1,060 


1,680 


3,490 


20 


18 


38 


11 


134 


190 


406 


730 


1,150 


2,400 


30 


15 


30 


61 


107 


152 


326 


586 


925 


1,930 


40 


13 


26 


53 


92 


131 


279 


502 


791 


1,650 


50 


11 


23 


47 


82 


116 


247 


445 


701 


1,460 


60 


10 


21 


42 


74 


105 


224 


403 


635 


1,320 


70 


NA 


19 


39 


68 


96 


206 


371 


585 


1,220 


80 


NA 


18 


36 


63 


90 


192 


345 


544 


1,130 


90 


NA 


17 


34 


59 


84 


180 


324 


510 


1,060 


100 


NA 


16 


32 


56 


79 


170 


306 


482 


1,000 


125 


NA 


14 


28 


50 


70 


151 


271 


427 


890 


150 


NA 


13 


26 


45 


64 


136 


245 


387 


806 


175 


NA 


12 


24 


41 


59 


125 


226 


356 


742 


200 


NA 


11 


22 


39 


55 


117 


210 


331 


690 


250 


NA 


NA 


20 


34 


48 


103 


186 


294 


612 


300 


NA 


NA 


18 


31 


44 


94 


169 


266 


554 


350 


NA 


NA 


16 


28 


40 


86 


155 


245 


510 


400 


NA 


NA 


15 


26 


38 


80 


144 


228 


474 


450 


NA 


NA 


14 


25 


35 


75 


135 


214 


445 


500 


NA 


NA 


13 


23 


33 


71 


128 


202 


420 


550 


NA 


NA 


13 


22 


32 


68 


122 


192 


399 


600 


NA 


NA 


12 


21 


30 


64 


116 


183 


381 


650 


NA 


NA 


12 


20 


29 


62 


111 


175 


365 


700 


NA 


NA 


11 


20 


28 


59 


107 


168 


350 


750 


NA 


NA 


11 


19 


27 


57 


103 


162 


338 


800 


NA 


NA 


10 


18 


26 


55 


99 


156 


326 


850 


NA 


NA 


10 


18 


25 


53 


96 


151 


315 


900 


NA 


NA 


NA 


17 


24 


52 


93 


147 


306 


950 


NA 


NA 


NA 


17 


24 


50 


90 


143 


297 


1,000 


NA 


NA 


NA 


16 


23 


49 


88 


139 


289 


1,100 


NA 


NA 


NA 


15 


22 


46 


84 


132 


274 


1,200 


NA 


NA 


NA 


15 


21 


44 


80 


126 


262 


1,300 


NA 


NA 


NA 


14 


20 


42 


76 


120 


251 


1,400 


NA 


NA 


NA 


13 


19 


41 


73 


116 


241 


1,500 


NA 


NA 


NA 


13 


18 


39 


71 


111 


232 


1,600 


NA 


NA 


NA 


13 


18 


38 


68 


108 


224 


1,700 


NA 


NA 


NA 


12 


17 


37 


66 


104 


217 


1,800 


NA 


NA 


NA 


12 


17 


36 


64 


101 


210 


1,900 


NA 


NA 


NA 


11 


16 


35 


62 


98 


204 


2,000 


NA 


NA 


NA 


11 


16 


34 


60 


95 


199 



NA means a flow of less than 10 cfh. 

Note: All table entries are rounded to 3 significant digits. 

*Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products. 



2010 CALIFORNIA PLUMBING CODE 



225 



FUEL PIPING 



TABLE 12-14 

SEMI-RIGID COPPER TUBING [NFPA 54-09: TABLE 6.2(h)] 



















GAS: 


NATURAL 






INLET PRESSURE: 


LESS THAN 2 psi 


PRESSURE DROP: 


I.Oin. w.c. 


SPECIFIC GRAVITY: 


0.60 


INTENDED USErTUBE SIZING BETWEEN HOUSE UNE REGULATOR AND THE APPUANC^^^ 


TUBE SIZE (inch) 


NOMINAL: 


K&L: 


V4 


% 


V2 


% 


% 


1 


VA 


V/2 


2 


ACR: 


Vb 


V2 


% 


% 


Ve 


IVb 


VA 


- 


- 


OUTSIDE: 


0.375 


0.500 


0.625 


0.750 


0.875 


1.125 


1.375 


1.625 


2.125 


INSIDE:* 


0.305 


0.402 


0.527 


0.652 


0.745 


0.995 


1.245 


1.481 


1.959 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


39 


80 


162 


283 


402 


859 


1,550 


2,440 


5,080 


20 


27 


55 


111 


195 


276 


590 


1,060 


1,680 


3,490 


30 


21 


44 


89 


156 


222 


474 


853 


1,350 


2,800 


40 


18 


38 


77 


134 


190 


406 


730 


1,150 


2,400 


50 


16 


33 


68 


119 


168 


359 


647 


1,020 


2,130 


60 


15 


30 


61 


107 


152 


326 


586 


925 


1,930 


70 


13 


28 


57 


99 


140 


300 


539 


851 


1,770 


80 


13 


26 


53 


92 


131 


279 


502 


791 


1,650 


90 


12 


24 


49 


86 


122 


262 


471 


742 


1,550 


100 


11 


23 


47 


82 


116 


247 


445 


701 


1,460 


125 


NA 


20 


41 


72 


103 


219 


394 


622 


1,290 


150 


NA 


18 


37 


65 


93 


198 


357 


563 


1,170 


175 


NA 


17 


34 


60 


85 


183 


329 


518 


1,080 


200 


NA 


16 


32 


56 


79 


170 


306 


482 


1,000 


250 


NA 


14 


28 


50 


70 


151 


271 


427 


890 


300 


NA 


13 


26 


45 


64 


136 


245 


387 


806 


350 


NA 


12 


24 


41 


59 


125 


226 


356 


742 


400 


NA 


11 


22 


39 


55 


117 


210 


331 


690 


450 


NA 


10 


21 


36 


51 


110 


197 


311 


647 


500 


NA 


NA 


20 


34 


48 


103 


186 


294 


612 


550 


NA 


NA 


19 


32 


46 


98 


177 


279 


581 


600 


NA 


NA 


18 


31 


44 


94 


169 


266 


554 


650 


NA 


NA 


17 


30 


42 


90 


162 


255 


531 


700 


NA 


NA 


16 


28 


40 


86 


155 


245 


510 


750 


NA 


NA 


16 


27 


39 


83 


150 


236 


491 


800 


NA 


NA 


15 


26 


38 


80 


144 


228 


474 


850 


NA 


NA 


15 


26 


36 


78 


140 


220 


459 


900 


NA 


NA 


14 


25 


35 


75 


135 


214 


445 


950 


NA 


NA 


14 


24 


34 


73 


132 


207 


432 


1,000 


NA 


NA 


13 


23 


33 


71 


128 


202 


420 


1,100 


NA 


NA 


13 


22 


32 


68 


122 


192 


399 


1,200 


NA 


NA 


12 


21 


30 


64 


116 


183 


381 


1,300 


NA 


NA 


12 


20 


29 


62 


111 


175 


365 


1,400 


NA 


NA 


11 


20 


28 


59 


107 


168 


350 


1,500 


NA- 


NA 


11 


19 


27 


57 


103 


162 


338 


1,600 


NA 


NA 


10 


18 


26 


55 


99 


156 


326 


1,700 


NA 


NA 


10 


18 


25 


53 


96 


151 


315 


1,800 


NA 


NA 


NA 


17 


24 


52 


93 


147 


306 


1,900 


NA 


NA 


NA 


17 


24 


50 


90 


143 


297 


2,000 


NA 


NA 


NA 


16 


23 


49 


88 


139 


289 



NA means a flow of less than 10 cfh. 

Note: All table entries are rounded to 3 significant digits. 

*Tabie capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products. 



226 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



TABLE 12-15 

SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(i)] 



















GAS: 


NATURAL 






INLET PRESSURE: 


LESS THAN 2 psi 


PRESSURE DROP: 


17.0in.w.c. 


SPECIFIC GRAVITY: 


0.60 




TUBE SIZE (inch) 


NOMINAL: 


K&L: 


% 


Ve 


Vi 


5/b 


3/4 


1 


IV4 


IV2 


2 


ACR: 


% 


Vz 


Vs 


V4 


78 


IVe 


IVe 


- 


- 


OUTSIDE: 


0.375 


0.500 


0.625 


0.750 


0.875 


1.125 


1.375 


1.625 


2.125 


INSIDE:* 


0.305 


0.402 


0.527 


0.652 


0.745 


0.995 


1.245 


1.481 


1.959 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


190 


391 


796 


1,390 


1,970 


4,220 


7,590 


12,000 


24,900 


20 


130 


269 


547 


956 


1,360 


2,900 


5,220 


8,230 


17,100 


30 


105 


216 


439 


768 


1,090 


2,330 


4,190 


6,610 


13,800 


40 


90 


185 


376 


657 


932 


1,990 


3,590 


5,650 


11,800 


50 


79 


164 


333 


582 


826 


1,770 


3,180 


5,010 


10,400 


60 


72 


148 


302 


528 


749 


1,600 


2,880 


4,540 


9,460 


70 


66 


137 


278 


486 


689 


1,470 


2,650 


4,180 


8,700 


80 


61 


127 


258 


452 


641 


1,370 


2,460 


3,890 


8,090 


90 


58 


119 


243 


424 


601 


1,280 


2,310 


3,650 


7,590 


100 


55 


113 


229 


400 


568 


1,210 


2,180 


3,440 


7,170 


125 


48 


100 


203 


355 


503 


1,080 


1,940 


3,050 


6,360 


150 


44 


90 


184 


321 


456 


974 


1,750 


2,770 


5,760 


175 


40 


83 


169 


296 


420 


896 


1,610 


2,540 


5,300 


200 


38 


77 


157 


275 


390 


834 


1,500 


2,370 


4,930 


250 


33 


69 


140 


244 


346 


739 


1,330 


2,100 


4,370 


300 


30 


62 


126 


221 


313 


670 


1,210 


1,900 


3,960 


350 


28 


57 


116 


203 


288 


616 


1,110 


1,750 


3,640 


400 


26 


53 


108 


189 


268 


573 


1,030 


1,630 


3,390 


450 


24 


50 


102 


177 


252 


538 


968 


1,530 


3,180 


500 


23 


47 


96 


168 


238 


508 


914 


1,440 


3,000 


550 


22 


45 


91 


159 


226 


482 


868 


1,370 


2,850 


600 


21 


43 


87 


152 


215 


460 


829 


1,310 


2,720 


650 


20 


41 


83 


145 


206 


441 


793 


1,250 


2,610 


700 


19 


39 


80 


140 


198 


423 


762 


1,200 


2,500 


750 


18 


38 


77 


135 


191 


408 


734 


1,160 


2,410 


800 


18 


37 


74 


130 


184 


394 


709 


1,120 


2,330 


850 


17 


35 


72 


126 


178 


381 


686 


1,080 


2,250 


900 


17 


34 


70 


122 


173 


370 


665 


1,050 


2,180 


950 


16 


33 


68 


118 


168 


359 


646 


1,020 


2,120 


1,000 


16 


32 


66 


115 


163 


349 


628 


991 


2,060 


1,100 


15 


31 


63 


109 


155 


332 


597 


941 


1,960 


1,200 


14 


29 


60 


104 


148 


316 


569 


898 


1,870 


1,300 


14 


28 


57 


100 


142 


303 


545 


860 


1,790 


1,400 


13 


27 


55 


96 


136 


291 


524 


826 


1,720 


1,500 


13 


26 


53 


93 


131 


280 


505 


796 


1,660 


1,600 


12 


25 


51 


89 


127 


271 


487 


768 


1,600 


1,700 


12 


24 


49 


86 


123 


262 


472 


744 


1,550 


1,800 


11 


24 


48 


84 


119 


254 


457 


721 


1,500 


1,900 


11 


23 


47 


81 


115 


247 


444 


700 


1,460 


2,000 


11 


22 


45 


79 


112 


240 


432 


681 


1,420 



Note: All table entries are rounded to 3 significant digits. 

*Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products. 



2010 CALIFORNIA PLUMBING CODE 



227 



FUEL PIPING 



TABLE 12-16 

SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.20')] 



















GAS: 


NATURAL 






INLET PRESSURE: 


2.0 psi 


PRESSURE DROP: 


1.0 psi 


SPECIFIC GRAVITY: 


0.60 




TUBE SIZE (inch) 


NOMINAL: 


K&L: 


y4 


ys 


V2 


% 


Va 


1 


VA 


IV2 


2 


ACR: 


% 


V2 


ya 


% 


Vb 


iVs 


1% 


- 


- 


OUTSIDE: 


0.375 


0.500 


0.625 


0.750 


0.875 


1.125 


1.375 


1.625 


2.125 


INSIDE:* 


0.305 


0.402 


0.527 


0.652 


0.745 


0.995 


1.245 


1.481 


1.959 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


245 


506 


1,030 


1,800 


2,550 


5,450 


9,820 


15,500 


32,200 


20 


169 


348 


708 


1,240 


1,760 


3,750 


6,750 


10,600 


22,200 


30 


135 


279 


568 


993 


1,410 


3,010 


5,420 


8,550 


17,800 


40 


116 


239 


486 


850 


1,210 


2,580 


4,640 


7,310 


15,200 


50 


103 


212 


431 


754 


1,070 


2,280 


4,110 


6,480 


13,500 


60 


93 


192 


391 


683 


969 


2,070 


3,730 


5,870 


12,200 


70 


86 


177 


359 


628 


891 


1,900 


3,430 


5,400 


11,300 


80 


80 


164 


334 


584 


829 


1,770 


3,190 


5,030 


10,500 


90 


75 


154 


314 


548 


778 


1,660 


2,990 


4,720 


9,820 


100 


71 


146 


296 


518 


735 


1,570 


2,830 


4,450 


9,280 


125 


63 


129 


263 


459 


651 


1,390 


2,500 


3,950 


8,220 


150 


57 


117 


238 


416 


590 


1,260 


2,270 


3,580 


7,450 


175 


52 


108 


219 


383 


543 


1,160 


2,090 


3,290 


6,850 


200 


49 


100 


204 


356 


505 


1,080 


1,940 


3,060 


6,380 


250 


43 


89 


181 


315 


448 


956 


1,720 


2,710 


5,650 


300 


39 


80 


164 


286 


406 


866 


1,560 


2,460 


5,120 


350 


36 


74 


150 


263 


373 


797 


1,430 


2,260 


4,710 


400 


33 


69 


140 


245 


347 


741 


1,330 


2,100 


4,380 


450 


31 


65 


131 


230 


326 


696 


1,250 


1,970 


4,110 


500 


30 


61 


124 


217 


308 


657 


1,180 


1,870 


3,880 


550 


28 


58 


118 


206 


292 


624 


1,120 


1,770 


3,690 


600 


27 


55 


112 


196 


279 


595 


1,070 


1,690 


3,520 


650 


26 


53 


108 


188 


267 


570 


1,030 


1,620 


3,370 


700 


25 


51 


103 


181 


256 


548 


986 


1,550 


3,240 


750 


24 


49 


100 


174 


247 


528 


950 


1,500 


3,120 


800 


23 


47 


96 


168 


239 


510 


917 


1,450 


3,010 


850 


22 


46 


93 


163 


231 


493 


888 


1,400 


2,920 


900 


22 


44 


90 


158 


224 


478 


861 


1,360 


2,830 


950 


21 


43 


88 


153 


217 


464 


836 


1,320 


2,740 


1,000 


20 


42 


85 


149 


211 


452 


813 


1,280 


2,670 


1,100 


19 


40 


81 


142 


201 


429 


772 


1,220 


2,540 


1,200 


18 


38 


77 


135 


192 


409 


737 


1,160 


2,420 


1,300 


18 


36 


74 


129 


183 


392 


705 


1,110 


2,320 


1,400 


17 


35 


71 


124 


176 


376 


678 


1,070 


2,230 


1,500 


16 


34 


68 


120 


170 


363 


653 


1,030 


2,140 


1,600 


16 


33 


66 


116 


164 


350 


630 


994 


2,070 


1,700 


15 


31 


64 


112 


159 


339 


610 


962 


2,000 


1,800 


15 


30 


62 


108 


154 


329 


592 


933 


1,940 


1,900 


14 


30 


60 


105 


149 


319 


575 


906 


1,890 


2,000 


14 


29 


59 


102 


145 


310 


559 


881 


1,830 



Note: All table entries are rounded to 
*Table capacities are based on Type K 



3 significant digits. 

copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products. 



228 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



TABLE 12-17 

SEMI-RIGID COPPER TUBING [NFPA 54-09: TABLE 6.2(k)] 





















GAS: 


NATURAL 






INLET PRESSURE: 


2.0 psi 


PRESSURE DROP: 


1.5 psi 


SPECIFIC GRAVITY: 


0.60 


ill - '. A 


iiffP|t 


1 p 1 1 p SiN<5i* HOUSE- LINE MG|JLta|||||0f jEXf E^M ISOiiOUlilQllf E||||| 


llfflJil 


MimmvMi iM 




Ifiiili' 


1 i v^:\^^'^--\M^ W 


TUBE SIZE (inch) 


NOMINAL: 


K&L: 


'A 


% 


V2 


% 


% 


1 


VA 


V/2 


2 


ACR: 


ye 


V2 


Vs 


y* 


Vb 


V/b 


1% 


- 


- 


OUTSIDE: 


0.375 


0.500 


0.625 


0.750 


0.875 


1.125 


1.375 


1.625 


2.125 


INSIDE:* 


0.305 


0.402 


0.527 


0.652 


0.745 


0.995 


1.245 


1.481 


1.959 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


303 


625 


1,270 


2,220 


3,150 


6,740 


12,100 


19,100 


39,800 


20 


208 


430 


874 


1,530 


2,170 


4,630 


8,330 


13,100 


27,400 


30 


167 


345 


702 


1,230 


1,740 


3,720 


6,690 


10,600 


22,000 


40 


143 


295 


601 


1,050 


1,490 


3,180 


5,730 


9,030 


18,800 


50 


127 


262 


532 


931 


1,320 


2,820 


5,080 


8,000 


16,700 


60 


115 


237 


482 


843 


1,200 


2,560 


4,600 


7,250 


15,100 


70 


106 


218 


444 


776 


1,100 


2,350 


4,230 


6,670 


13,900 


80 


98 


203 


413 


722 


1,020 


2,190 


3,940 


6,210 


12,900 


90 


92 


190 


387 


677 


961 


2,050 


3,690 


5,820 


12,100 


100 


87 


180 


366 


640 


907 


1,940 


3,490 


5,500 


11,500 


125 


77 


159 


324 


567 


804 


1,720 


3,090 


4,880 


10,200 


150 


70 


144 


294 


514 


729 


1,560 


2,800 


4,420 


9,200 


175 


64 


133 


270 


472 


670 


1,430 


2,580 


4,060 


8,460 


200 


60 


124 


252 


440 


624 


1,330 


2,400 


3,780 


7,870 


250 


53 


110 


223 


390 


553 


1,180 


2,130 


3,350 


6,980 


300 


48 


99 


202 


353 


501 


1,070 


1,930 


3,040 


6,320 


350 


44 


91 


186 


325 


461 


984 


1,770 


2,790 


5,820 


400 


41 


85 


173 


302 


429 


916 


1,650 


2,600 


5,410 


450 


39 


80 


162 


283 


402 


859 


1,550 


2,440 


5,080 


500 


36 


75 


153 


268 


380 


811 


1,460 


2,300 


4,800 


550 


35 


72 


146 


254 


361 


771 


1,390 


2,190 


4,560 


600 


33 


68 


139 


243 


344 


735 


1,320 


2,090 


4,350 


650 


32 


65 


133 


232 


330 


704 


1,270 


2,000 


4,160 


700 


30 


63 


128 


223 


317 


676 


1,220 


1,920 


4,000 


750 


29 


60 


123 


215 


305 


652 


1,170 


1,850 


3,850 


800 


28 


58 


119 


208 


295 


629 


1,130 


1,790 


3,720 


850 


27 


57 


115 


201 


285 


609 


1,100 


1,730 


3,600 


900 


27 


55 


HI 


195 


276 


590 


1,060 


1,680 


3,490 


950 


26 


53 


108 


189 


268 


573 


1,030 


1,630 


3,390 


1,000 


25 


52 


105 


184 


261 


558 


1,000 


1,580 


3,300 


1,100 


24 


49 


100 


175 


248 


530 


954 


1,500 


3,130 


1,200 


23 


47 


95 


167 


237 


505 


910 


1,430 


2,990 


1,300 


22 


45 


91 


160 


227 


484 


871 


1,370 


2,860 


1,400 


21 


43 


88 


153 


218 


465 


837 


1,320 


2,750 


1,500 


20 


42 


85 


148 


210 


448 


806 


1,270 


2,650 


1,600 


19 


40 


82 


143 


202 


432 


779 


1,230 


2,560 


1,700 


19 


39 


79 


138 


196 


419 


753 


1,190 


2,470 


1,800 


18 


38 


77 


134 


190 


406 


731 


1,150 


2,400 


1,900 


18 


37 


74 


130 


184 


394 


709 


1,120 


2,330 


2,000 


17 


36 


72 


126 


179 


383 


690 


1,090 


2,270 



Note: All table entries are rounded to 3 significant digits. 

*Table capacities are based on Type K copper tubing inside diameter (shown), which has the smallest inside diameter 
fWhen this table is used to size the tubing upstream of a line pressure regulator, the pipe or tubing downstream of the 
pressure drop no greater than 1 in. w.c. 



of the copper tubing products. 

line pressure regulator shall be sized using a 



2010 CALIFORNIA PLUMBING CODE 



229 



FUEL PIPING 



TABLE 12-18 

SEMI-RIGID COPPER TUBING [NFPA 54: TABLE 6.2(1)] 



















GAS: 


NATURAL 




INLET PRESSURE: 


5.0 psi 


PRESSURE DROP: 


3.5 psi 


SPECIFIC GRAVITY: 


0.60 




TUBE SIZE (inch) 


NOMINAL: 


K&L: 


V4 


Vb 


Vz 


% 


3/4 


1 


1V4 


IV2 


2 


ACR: 


% 


Vi 


s/b 


% 


Vs 


1V8 


IVb 


- 


- 


OUTSIDE: 


0.375 


0.500 


0.625 


0.750 


0.875 


1.125 


1.375 


1.625 


2.125 


INSIDE:* 


0.305 


0.402 


0.527 


0.652 


0.745 


0.995 


1.245 


1.481 


1.959 


LENGTH (ft.) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 
20 
30 
40 
50 


511 
351 
282 
241 
214 


1,050 
724 
582 
498 
441 


2,140 
1,470 
1,180 
1,010 
898 


3,750 
2,580 
2,070 
1,770 
1,570 


5,320 
3,650 
2,930 
2,510 
2,230 


11,400 
7,800 
6,270 
5,360 
4,750 


20,400 

14,000 

11,300 

9,660 

8,560 


32,200 
22,200 
17,800 
15,200 
13,500 


67,100 
46,100 
37,000 
31,700 
28,100 


60 
70 
80 
90 
100 


194 
178 
166 
156 
147 


400 
368 
342 
321 
303 


813 
748 
696 
653 
617 


1,420 
1,310 
1,220 
1,140 
1,080 


2,020 
1,860 
1,730 
1,620 
1,530 


4,310 
3,960 
3,690 
3,460 
3,270 


7,750 
7,130 
6,640 
6,230 
5,880 


12,200 

11,200 

10,500 

9,820 

9,270 


25,500 
23,400 
21,800 
20,400 
19,300 


125 
150 
175 
200 
250 


130 
118 
109 
101 
90 


269 

243 
224 
208 
185 


547 
495 
456 
424 
376 


955 
866 
796 
741 

657 


1,360 
1,230 
1,130 
1,050 
932 


2,900 
2,620 
2,410 
2,250 
1,990 


5,210 
4,720 
4,350 
4,040 
3,580 


8,220 
7,450 
6,850 
6,370 
5,650 


17,100 
15,500 
14,300 
13,300 
11,800 


300 
350 
400 
450 
500 


81 
75 
69 
65 
62 


167 
154 
143 
134 
127 


340 
313 
291 

273 
258 


595 
547 
509 
478 
451 


844 
111 
111 
678 
640 


1,800 
1,660 
1,540 
1,450 
1,370 


3,250 
2,990 
2,780 
2,610 
2,460 


5,120 
4,710 
4,380 
4,110 
3,880 


10,700 
9,810 
9,120 
8,560 
8,090 


550 
600 
650 
700 
750 


58 
56 
53 
51 
49 


121 
115 
110 
106 
102 


245 
234 
224 
215 
207 


429 
409 
392 
376 
362 


608 
580 
556 
534 
514 


1,300 
1,240 
1,190 
1,140 
1,100 


2,340 
2,230 
2,140 
2,050 
1,980 


3,690 
3,520 
3,370 
3,240 
3,120 


7,680 
7,330 
7,020 
6,740 
6,490 


800 
850 
900 
950 
1,000 


48 
46 
45 
43 
42 


98 
95 
92 
90 

87 


200 
194 
188 
182 
177 


350 
339 
328 
319 
310 


497 
481 
466 
452 
440 


1,060 

1,030 

1,000 

967 

940 


1,910 
1,850 
1,790 
1,740 
1,690 


3,010 
2,910 
2,820 
2,740 
2,670 


6,270 
6,070 
5,880 
5,710 
5,560 


1,100 
1,200 
1,300 
1,400 
1,500 


40 
38 
37 
35 
34 


83 
79 
76 
73 
70 


169 
161 
154 

148 
143 


295 
281 
269 
259 
249 


418 
399 
382 
367 
353 


893 
852 
816 
784 
755 


1,610 
1,530 
1,470 
1,410 
1,360 


2,530 
2,420 
2,320 
2,220 
2,140 


5,280 
5,040 
4,820 
4,630 
4,460 


1,600 
1,700 
1,800 
1,900 
2,000 


33 
32 
31 
30 
29 


68 
65 
63 
62 
60 


138 
133 
129 
125 

122 


241 
233 
226 
219 
213 


341 
330 
320 
311 
302 


729 
705 
684 
664 
646 


1,310 
1,270 
1,230 
1,200 
1,160 


2,070 
2,000 
1,940 
1,890 
1,830 


4,310 
4,170 
4,040 
3,930 
3,820 



Note: All table entries are rounded to 
*Table capacities are based on Type K 



3 significant digits. 

copper tubing inside diameter (shown), which has the smallest inside diameter of the copper tubing products. 



230 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



TABLE 12-19 

CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54-09: TABLE 6.2(m)] 





GAS: 


NATURAL 


INLET PRESSURE: 


LESS THAN 2 psi 


PRESSURE DROP: 


0.5 In. w.c. 


SPECIFIC GRAVITY: 


0.60 




TUBE SIZE (EHD)* 


FLOW DESIGNATION: 


13 


15 


18 


19 


23 


25 


30 1 31 1 37 


39 


46 1 48 


60 


62 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


5 


46 


63 


115 


134 


225 


270 


471 


546 


895 


1,037 


1,790 


2,070 


3,660 


4,140 


10 


32 


44 


82 


95 


161 


192 


330 


383 


639 


746 


1,260 


1,470 


2,600 


2,930 


15 


25 


35 


66 


77 


132 


157 


267 


310 


524 


615 


1,030 


1,200 


2,140 


2,400 


20 


22 


31 


58 


67 


116 


137 


231 


269 


456 


536 


888 


1,050 


1,850 


2,080 


25 


19 


27 


52 


60 


104 


122 


206 


240 


409 


482 


793 


936 


1,660 


1,860 


30 


18 


25 


47 


55 


96 


112 


188 


218 


374 


442 


723 


856 


1,520 


1,700 


40 


15 


21 


41 


47 


83 


97 


162 


188 


325 


386 


625 


742 


1,320 


1,470 


50 


13 


19 


37 


42 


75 


87 


144 


168 


292 


347 


559 


665 


1,180 


1,320 


60 


12 


17 


34 


38 


68 


80 


131 


153 


267 


318 


509 


608 


1,080 


1,200 


70 


11 


16 


31 


36 


63 


74 


121 


141 


248 


295 


471 


563 


1,000 


1,110 


80 


10 


15 


29 


33 


60 


69 


113 


132 


232 


277 


440 


527 


940 


1,040 


90 


10 


14 


28 


32 


57 


65 


107 


125 


219 


262 


415 


498 


887 


983 


100 


9 


13 


26 


30 


54 


62 


101 


118 


208 


249 


393 


472 


843 


933 


150 


7 


10 


20 


23 


42 


48 


78 


91 


171 


205 


320 


387 


691 


762 


200 


6 


9 


18 


21 


38 


44 


71 


82 


148 


179 


277 


336 


600 


661 


250 


5 


8 


16 


19 


34 


39 


63 


74 


133 


161 


247 


301 


538 


591 


300 


5 


7 


15 


17 


32 


36 


57 


67 


95 


148 


226 


275 


492 


540 



*EHD = Equivalent Hydraulic Diameter, which is a measure of the relative hydrauHc efficiency between different tubing sizes. The greater the value of EHD, the 

greater the gas capacity of the tubing. 

Notes: 

(1) Table includes losses for four 90 degree bends and two end fittings. Tubing runs with larger numbers of bends and/or fittings shall be increased by an equiva- 
lent length of tubing to the following equation: L=l3n, where L is additional length (ft) of tubing and n is the number of additional fittings and/or bends. 

(2) All t<ible entries are rounded to 3 significant digits. 

TABLE 12-20 

CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.2(n)] 





GAS: 


NATURAL 


INLET PRESSURE: 


LESSTHAN2psi 


PRESSURE DROP: 


3.0 in. w.c. 


SPECIFIC GRAVITY: 


0.60 
















TUBE SIZE (EHD] 


* 








FLOW DESIGNATION: 


13 


15 


18 


19 


23 


25 


30 


31 


37 


46 1 48 


60 


62 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


5 


120 


160 


277 


327 


529 


649 


1,180 


1,370 


2,140 


4,430 


5,010 


8,800 


10,100 


10 


83 


112 


197 


231 


380 


462 


828 


958 


1,530 


3,200 


3,560 


6,270 


7,160 


15 


67 


90 


161 


189 


313 


379 


673 


778 


1,250 


2,540 


2,910 


5,140 


5,850 


20 


57 


78 


140 


164 


273 


329 


580 


672 


1,090 


2,200 


2,530 


4,460 


5,070 


25 


51 


69 


125 


147 


245 


295 


518 


599 


978 


1,960 


2,270 


4,000 


4,540 


30 


46 


63 


115 


134 


225 


270 


471 


546 


895 


1,790 


2,070 


3,660 


4,140 


40 


39 


54 


100 


116 


196 


234 


407 


471 


778 


1,550 


1,800 


3,180 


3,590 


50 


35 


48 


89 


104 


176 


210 


363 


421 


698 


1,380 


1,610 


2,850 


3,210 


60 


32 


44 


82 


95 


161 


192 


330 


383 


639 


1,260 


1,470 


2,600 


2,930 


70 


29 


41 


76 


88 


150 


178 


306 


355 


593 


1,170 


1,360 


2,420 


2,720 


80 


27 


38 


71 


82 


141 


167 


285 


331 


555 


1,090 


1,280 


2,260 


2,540 


90 


26 


36 


67 


77 


133 


157 


268 


311 


524 


1,030 


1,200 


2,140 


2,400 


100 


24 


34 


63 


73 


126 


149 


254 


295 


498 


974 


1,140 


2,030 


2,280 


150 


19 


27 


52 


60 


104 


122 


206 


240 


409 


793 


936 


1,660 


1,860 


200 


17 


23 


45 


52 


91 


106 


178 


207 


355 


686 


812 


1,440 


1,610 


250 


15 


21 


40 


46 


82 


95 


159 


184 


319 


613 


728 


1,290 


1,440 


300 


13 


19 


37 


42 


75 


87 


144 


168 


234 


559 


665 


1,180 


1,320 



*EHD = Equivalent Hydrauhc Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes. The greater the value of EHD, the 

greater the gas capacity of the tubing. 

Notes: 

(1) Table includes losses for four 90 degree bends and two end fittings. Tubing runs with larger numbers of bends and/or fittings shall be increased by an equiva- 
lent length of tubing to the following equation: L = l.3n, where L is additional length (ft) of tubing and n is the number of additional fittings and/or bends. 

(2) All table entries are roimded to 3 significant digits. 



2010 CALIFORNIA PLUMBING CODE 



231 



FUEL PIPING 



TABLE 12-21 

CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54: TABLE 6.2(o)] 





GAS: 


NATURAL 


INLET PRESSURE: 


LESS THAN 2 psi 


PRESSURE DROP: 


6.0 in. w.c. 


SPECIFIC GRAVITY: 


0.60 
















TUBE SIZE (EHD 


r 








FLOW DESIGNATION: 


13 


15 


18 


19 


23 


25 


30 


31 


37 


46 1 48 


60 


62 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


5 


173 


229 


389 


461 


737 


911 


1,690 


1,950 


3,000 


6,280 


7,050 


12,400 


14,260 


10 


120 


160 


277 


327 


529 


649 


1,180 


1,370 


2,140 


4,430 


5,010 


8,800 


10,100 


15 


96 


130 


227 


267 


436 


532 


960 


1,110 


1,760 


3,610 


4,100 


7,210 


8,260 


20 


83 


112 


197 


231 


380 


462 


828 


958 


1,530 


3,120 


3,560 


6,270 


7,160 


25 


74 


99 


176 


207 


342 


414 


739 


855 


1,370 


2,790 


3,190 


5,620 


6,400 


30 


67 


90 


161 


189 


313 


379 


673 


778 


1,250 


2,540 


2,910 


5,140 


5,850 


40 


57 


78 


140 


164 


273 


329 


580 


672 


1,090 


2,200 


2,530 


4,460 


5,070 


50 


51 


69 


125 


147 


245 


295 


518 


599 


978 


1,960 


2,270 


4,000 


4,540 


60 


46 


63 


115 


134 


225 


270 


471 


546 


895 


1,790 


2,070 


3,660 


4,140 


70 


42 


58 


106 


124 


209 


250 


435 


505 


830 


1,660 


1,920 


3,390 


3,840 


80 


39 


54 


100 


116 


196 


234 


407 


471 


778 


1,550 


1,800 


3,180 


3,590 


90 


37 


51 


94 


109 


185 


221 


383 


444 


735 


1,460 


1,700 


3,000 


3,390 


100 


35 


48 


89 


104 


176 


210 


363 


421 


698 


1,380 


1,610 


2,850 


3,210 


150 


28 


39 


73 


85 


145 


172 


294 


342 


573 


1,130 


1,320 


2,340 


2,630 


200 


24 


34 


63 


73 


126 


149 


254 


295 


498 


974 


1,140 


2,030 


2,280 


250 


21 


30 


57 


66 


114 


134 


226 


263 


447 


870 


1,020 


1,820 


2,040 


300 


19 


27 


52 


60 


104 


122 


206 


240 


409 


793 


936 


1,660 


1,860 



*EHD = Equivalent Hydraulic Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes. The greater the value of EHD, 

the greater the gas capacity of the tubing. 

Notes: 

(1) Table includes losses for four 90 degree bends and two end fittings. Tubing runs with larger numbers of bends and/or fittings shall be increased by an equiv- 
alent length of tubing to the following equation: L = 1 .3n, where L is additional length (ft) of tubing and n is the number of additional fittings and/or bends. 

(2) All table entries are rounded to 3 significant digits. 

TABLE 12-22 

CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54-09: TABLE 6.2(p)] 





GAS: 


NATURAL 


INLET PRESSURE: 


2.0 psi 


PRESSURE DROP: 


1.0 psi 


SPECIFIC GRAVITY: 


0.60 




TUBE SIZE (EHD)* 


FLOW DESIGNATION: 


13 


15 


18 


19 


23 


25 


30 


31 


37 


39 


46 


48 


60 


62 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


270 


353 


587 


700 


1,100 


1,370 


2,590 


2,990 


4,510 


5,037 


9,600 


10,700 


18,600 


21,600 


25 


166 


220 


374 


444 


709 


876 


1,620 


1,870 


2,890 


3,258 


6,040 


6,780 


11,900 


13,700 


30 


151 


200 


342 


405 


650 


801 


1,480 


1,700 


2,640 


2,987 


5,510 


6,200 


10,900 


12,500 


40 


129 


172 


297 


351 


567 


696 


1,270 


1,470 


2,300 


2,605 


4,760 


5,380 


9,440 


10,900 


50 


115 


154 


266 


314 


510 


624 


1,140 


1,310 


2,060 


2,343 


4,260 


4,820 


8,470 


9,720 


75 


93 


124 


218 


257 


420 


512 


922 


1,070 


1,690 


1,932 


3,470 


3,950 


6,940 


7,940 


80 


89 


120 


211 


249 


407 


496 


892 


1,030 


1,640 


1,874 


3,360 


3,820 


6,730 


7,690 


100 


79 


107 


189 


222 


366 


445 


795 


920 


1,470 


1,685 


3,000 


3,420 


6,030 


6,880 


150 


64 


87 


155 


182 


302 


364 


646 


748 


1,210 


1,389 


2,440 


2,800 


4,940 


5,620 


200 


55 


75 


135 


157 


263 


317 


557 


645 


1,050 


1,212 


2,110 


2,430 


4,290 


4,870 


250 


49 


67 


121 


141 


236 


284 


497 


576 


941 


1,090 


1,890 


2,180 


3,850 


4,360 


300 


44 


61 


110 


129 


217 


260 


453 


525 


862 


999 


1,720 


1,990 


3,520 


3,980 


400 


38 


52 


96 


111 


189 


225 


390 


453 


749 


871 


1,490 


1,730 


3,060 


3,450 


500 


34 


46 


86 


100 


170 


202 


348 


404 


552 


783 


1,330 


1,550 


2,740 


3,090 



*EHD = Equivalent Hydraulic Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes. The greater the value of EHD, the 

greater the gas capacity of the tubing. 

Notes: 

(1) Table does not include effect of pressure drop across the line regulator Where regulator loss exceeds Va psi, do not use this table. Consult with regulator man- 
ufacturer for pressure drops and capacity factors. Pressure drops across a regulator may vary with flow rate. 

(2) CAUTION: Capacities shown in table may exceed maximum capacity for a selected regulator Consult with regulator or tubmg manufacturer for guidance. 

(3) Table includes losses for four 90 degree bends and two end fittings. Tubing runs with larger numbers of bends and/or fittings shall be increased by an equiva- 
lent length of tubing according to the following equation: L = 1.3«, where L is additional length (ft) of tubing and n is the number of additional fittings and/or 
bends. 

(4) All table entries are rounded to 3 significant digits. 



232 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



TABLE 12-23 

CORRUGATED STAINLESS STEEL TUBING (CSST) [NFPA 54-09: TABLE 6.2(q)] 





GAS: 


NATURAL 


INLET PRESSURE: 


5.0 psi 


PRESSURE DROP: 


3.5 psi 


SPECIFIC GRAVITY: 


0.60 




TUBE SIZE (EHD)* 


FLOW DESIGNATION: 


13 


15 


18 


19 


23 


25 


30 


31 


37 


39 


46 


48 


60 


62 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


523 


674 


1,080 


1,300 


2,000 


2,530 


4,920 


5,660 


8,300 


9,140 


18,100 


19,800 


34,400 


40,400 


25 


322 


420 


691 


827 


1,290 


1,620 


3,080 


3,540 


5,310 


5,911 


11,400 


12,600 


22,000 


25,600 


30 


292 


382 


632 


755 


1,180 


1,480 


2,800 


3,230 


4,860 


5,420 


10,400 


11,500 


20,100 


23,400 


40 


251 


329 


549 


654 


1,030 


1,280 


2,420 


2,790 


4,230 


4,727 


8,970 


10,000 


17,400 


20,200 


50 


223 


293 


492 


586 


926 


1,150 


2,160 


2,490 


3,790 


4,251 


8,020 


8,930 


15,600 


18,100 


75 


180 


238 


403 


479 


763 


944 


1,750 


2,020 


3,110 


3,506 


6,530 


7,320 


12,800 


14,800 


80 


174 


230 


391 


463 


740 


915 


1,690 


1,960 


3,020 


3,400 


6,320 


7,090 


12,400 


14,300 


100 


154 


205 


350 


415 


665 


820 


1,510 


1,740 


2,710 


3,057 


5,650 


6,350 


11,100 


12,800 


150 


124 


166 


287 


339 


548 


672 


1,230 


1,420 


2,220 


2,521 


4,600 


5,200 


9,130 


10,500 


200 


107 


143 


249 


294 


478 


584 


1,060 


1,220 


1,930 


2,199 


3,980 


4,510 


7,930 


9,090 


250 


95 


128 


223 


263 


430 


524 


945 


1,090 


1,730 


1,977 


3,550 


4,040 


7,110 


8,140 


300 


86 


116 


204 


240 


394 


479 


860 


995 


1,590 


1,813 


3,240 


3,690 


6,500 


7,430 


400 


74 


100 


177 


208 


343 


416 


742 


858 


1,380 


1,581 


2,800 


3,210 


5,650 


6,440 


500 


66 


89 


159 


186 


309 


373 


662 


766 


1,040 


1,422 


2,500 


2,870 


5,060 


5,760 



*EHD = Equivalent Hydraulic Diameter, which is a measure of the relative hydraulic efficiency between different tubing sizes. The greater the value of EHD, the 

greater the gas capacity of the tubing. 

Notes: 

(1) Table does not include effect of pressure drop across the line regulator. Where regulator loss exceeds 1 psi, do not use this table. Consult with regulator manu- 
facturer for pressure drops and capacity factors. Pressure drops across regulator may vary with the flow rate. 

(2) CAUTION: Capacities shown in table may exceed maximum capacity of selected regulator. Consult tubing manufacturer for guidance. 

(3) Table includes losses for four 90 degree bends and two end fittings. Tubing runs with larger numbers of bends and/or fittings shall be increased by an equivalent 
length of tubing to the following equation: L = 1.3«, where L is additional length (ft) of tubing and n is the number of additional fittings and/or bends. 

(4) All table entries are rounded to 3 significant digits. 

TABLE 12-24 

POLYETHYLENE PLASTIC PIPE [NFPA 54: TABLE 6.2(r)] 





GAS: 


NATURAL 


INLET PRESSURE: 


LESSTHAN2psi 


PRESSURE DROP: 


0.3 in. w.c. 


SPECIFIC GRAVITY: 


0.60 




PIPE SIZE (inch) 


NOMINAL OD: 


Vi 


3/4 


1 


VA 


IV2 


2 


DESIGNATION: 


SDR 9.33 


SDR 11.0 


SDR 11.00 


SDR 10.00 


SDR 11.00 


SDR 11.00 


ACTUAL ID: 


0.660 


0.860 


1.077 


1.328 


1.554 


1.943 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


153 


305 


551 


955 


1,440 


2,590 


20 


105 


210 


379 


656 


991 


1,780 


30 


84 


169 


304 


527 


796 


1,430 


40 


72 


144 


260 


451 


681 


1,220 


50 


64 


128 


231 


400 


604 


1,080 


60 


58 


116 


209 


362 


547 


983 


70 


53 


107 


192 


333 


503 


904 


80 


50 


99 


179 


310 


468 


841 


90 


46 


93 


168 


291 


439 


789 


100 


44 


88 


159 


275 


415 


745 


125 


39 


78 


141 


243 


368 


661 


150 


35 


71 


127 


221 


333 


598 


175 


32 


65 


117 


203 


306 


551 


200 


30 


60 


109 


189 


285 


512 


250 


27 


54 


97 


167 


253 


454 


300 


24 


48 


88 


152 


229 


411 


350 


22 


45 


81 


139 


211 


378 


400 


21 


42 


75 


130 


196 


352 


450 


19 


39 


70 


122 


184 


330 


500 


18 


37 


66 


115 


174 


312 



Note: All table entries are rounded to 3 significant digits. 



2010 CALIFORNIA PLUMBING CODE 



233 



FUEL PIPING 



TABLE 12-25 

POLYETHYLENE PLASTIC PIPE [NFPA 54: TABLE 6. 



2(s)] 





GAS: 


NATURAL 


INLET PRESSURE: 


LESS THAN 2 psi 


PRESSURE DROP: 


0.5 In. w.c. 


SPECIRC GRAVITY: 


0.60 




PIPE SIZE (Inch) 


NOMINAL OD: 


V2 


Va 


1 


VA 


IV2 


2 


DESIGNATION: 


SDR 9.33 


SDR 11.0 


SDR 11.00 


SDR 10.00 


SDR 11.00 


SDR 11.00 


ACTUAL ID: 


0.660 


0.860 


1.077 


1.328 


1.554 


1.943 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


201 


403 


726 


1,260 


1,900 


3,410 


20 


138 


277 


499 


865 


1,310 


2,350 


30 


111 


222 


401 


695 


1,050 


1,880 


40 


95 


190 


343 


594 


898 


1,610 


50 


84 


169 


304 


527 


796 


1,430 


60 


76 


153 


276 


477 


721 


1,300 


70 


70 


140 


254 


439 


663 


1,190 


80 


65 


131 


236 


409 


617 


1,110 


90 


61 


123 


221 


383 


579 


1,040 


100 


58 


116 


209 


362 


547 


983 


125 


51 


103 


185 


321 


485 


871 


150 


46 


93 


168 


291 


439 


789 


175 


43 


86 


154 


268 


404 


726 


200 


40 


80 


144 


249 


376 


675 


250 


35 


71 


127 


221 


333 


598 


300 


32 


64 


115 


200 


302 


542 


350 


29 


59 


106 


184 


278 


499 


400 


27 


55 


99 


171 


258 


464 


450 


26 


51 


93 


160 


242 


435 


500 


24 


48 


88 


152 


229 


411 



Note: All table entries are rounded to 3 significant digits. 



234 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



TABLE 12-26 

POLYETHYLENE PLASTIC PIPE [NFPA 54: TABLE 6.2(t)] 





GAS: 


NATURAL 


INLET PRESSURE: 


2.0 psi 


PRESSURE DROP: 


1.0 psi 


SPECIFIC GRAVITY: 


0.60 




PIPE SIZE (inch) 


NOMINAL OD: 


V2 


3/. 


1 


VA 


V/2 


2 


DESIGNATION: 


SDR 9.33 


SDR 11.0 


SDR 11.00 


SDR 10.00 


SDR 11.00 


SDR 11.00 


ACTUAL ID: 


0.660 


0.860 


1.077 


1.328 


1.554 


1.943 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


1,860 


3,720 


6,710 


11,600 


17,600 


31,600 


20 


1,280 


2,560 


4,610 


7,990 


12,100 


21,700 


30 


1,030 


2,050 


3,710 


6,420 


9,690 


17,400 


40 


878 


1,760 


3,170 


5,490 


8,300 


14,900 


50 


778 


1,560 


2,810 


4,870 


7,350 


13,200 


60 


705 


1,410 


2,550 


4,410 


6,660 


12,000 


70 


649 


1,300 


2,340 


4,060 


6,130 


11,000 


80 


603 


1,210 


2,180 


3,780 


5,700 


10,200 


90 


566 


1,130 


2,050 


3,540 


5,350 


9,610 


100 


535 


1,070 


1,930 


3,350 


5,050 


9,080 


125 


474 


949 


1,710 


2,970 


4,480 


8,050 


150 


429 


860 


1,550 


2,690 


4,060 


7,290 


175 


395 


791 


1,430 


2,470 


3,730 


6,710 


200 


368 


736 


1,330 


2,300 


3,470 


6,240 


250 


326 


652 


1,180 


2,040 


3,080 


5,530 


300 


295 


591 


1,070 


1,850 


2,790 


5,010 


350 


272 


544 


981 


1,700 


2,570 


4,610 


400 


253 


506 


913 


1,580 


2,390 


4,290 


450 


237 


475 


856 


1,480 


2,240 


4,020 


500 


224 


448 


809 


1,400 


2,120 


3,800 


550 


213 


426 


768 


1,330 


2,010 


3,610 


600 


203 


406 


733 


1,270 


1,920 


3,440 


650 


194 


389 


702 


1,220 


1,840 


3,300 


700 


187 


374 


674 


1,170 


1,760 


3,170 


750 


180 


360 


649 


1,130 


1,700 


3,050 


800 


174 


348 


627 


1,090 


1,640 


2,950 


850 


168 


336 


607 


1,050 


1,590 


2,850 


900 


163 


326 


588 


1,020 


1,540 


2,770 


950 


158 


317 


572 


990 


1,500 


2,690 


1,000 


154 


308 


556 


963 


1,450 


2,610 


1,100 


146 


293 


528 


915 


1,380 


2,480 


1,200 


139 


279 


504 


873 


1,320 


2,370 


1,300 


134 


267 


482 


836 


1,260 


2,270 


1,400 


128 


257 


463 


803 


1,210 


2,180 


1,500 


124 


247 


446 


773 


1,170 


2,100 


1,600 


119 


239 


431 


747 


1,130 


2,030 


1,700 


115 


231 


417 


723 


1,090 


1,960 


1,800 


112 


224 


404 


701 


1,060 


1,900 


1,900 


109 


218 


393 


680 


1,030 


1,850 


2,000 


106 


212 


382 


662 


1,000 


1,800 



Note: All table entries are rounded to 3 significant digits. 



2010 CALIFORNIA PLUMBING CODE 



235 



FUEL PIPING 



TABLE 12-27 

POLYETHYLENE PLASTIC TUBING [NFPA 54: TABLE 6.2(u)] 



TABLE 12-28 

POLYETHYLENE PLASTIC TUBING [NFPA 54: TABLE 6.2(v)] 





GAS: 


NATURAL 


INLET PRESSURE: 


LESS THAN 2.0 psi 


PRESSURE DROP: 


0.3 in. w.c. 


SPECIFIC GRAVITY: 


0.60 


PLASTIC TUBING SIZE (CTS)* (inch) 


NOMINAL CD: 


Vz 


% 


DESIGNATION: 


SDR 7.00 


SDR 11.00 


ACTUAL ID: 


0.445 


0.927 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


54 


372 


20 


37 


256 


30 


30 


205 


40 


26 


176 


50 


23 


156 


60 


21 


141 


70 


19 


130 


80 


18 


121 


90 


17 


113 


100 


16 


107 


125 


14 


95 


150 


13 


86 


175 


12 


79 


200 


11 


74 


225 


10 


69 


250 


NA 


65 


275 


NA 


62 


300 


NA 


59 


350 


NA 


54 


400 


NA 


51 


450 


NA 


47 


500 


NA 


45 



' CTS = Copper tube size. 
NA means a flow of less than 10 cfh. 
Note: All table entries are rounded to 3 significant digits. 





GAS: 


NATURAL 


INLET PRESSURE: 


LESS THAN 2.0 psi 


PRESSURE DROP: 


0.5 in. w.c. 


SPECIFIC GRAVITY: 


0.60 


PLASTIC TUBING SIZE (CTS)* (inch) 


NOMINAL OD: 


Vi 


% 


DESIGNATION: 


SDR 7.00 


SDR 11.00 


ACTUAL ID: 


0.445 


0.927 


LENGTH (ft) 


CAPACITY IN CUBIC FEET OF GAS PER HOUR 


10 


72 


490 


20 


49 


337 


30 


39 


271 


40 


34 


232 


50 


30 


205 


60 


27 


186 


70 


25 


171 


80 


23 


159 


90 


22 


149 


100 


21 


141 


125 


18 


125 


150 


17 


113 


175 


15 


104 


200 


14 


97 


225 


13 


91 


250 


12 


86 


275 


11 


82 


300 


11 


78 


350 


10 


72 


400 


NA 


67 


450 


NA 


63 


500 


NA 


59 



* CTS = Copper tube size. 

NA means a flow of less than 10 cfh. 

Note: All table entries are rounded to 3 significant digits. 



236 



2010 CALIFORNIA PLUMBING CODE 



FUEL PIPING 



TABLE 12-29 

SCHEDULE 40 METALLIC PIPE [NFPA 54: TABLE 6.3(a)] 














GAS: 


UNDILUTED PROPANE 


INLET PRESSURE: 


10.0 psi 


PRESSURE DROP: 


1.0 psi 


SPECIFIC GRAVITY: 


1.50 


? ; ! : *N|#|#||^iflifl#|BltWEEN^ 


PIPE SIZE (inch) 


NOMINAL 
INSIDE: 


V2 


3/4 


1 


VA 


IV2 


2 


2y2 


3 


4 


ACTUAL: 


0.622 


0.824 


1.049 


1.380 


1.610 


2.067 


2.469 


3.068 


4.026 


LENGTH (ft.) 


CAPACITY IN THOUSANDS OF BTU PER HOUR 


10 
20 
30 
40 
50 


3,320 
2,280 
1,830 
1,570 
1,390 


6,950 

4,780 
3,840 
3,280 
2,910 


13,100 
9,000 
7,220 
6,180 
5,480 


26,900 
18,500 
14,800 
12,700 
11,300 


40,300 
27,700 
22,200 
19,000 
16,900 


77,600 
53,300 
42,800 
36,600 
32,500 


124,000 
85,000 
68,200 
58,400 
51,700 


219,000 
150,000 
121,000 
103,000 
91,500 


446,000 
306,000 
246,000 
211,000 
187,000 


60 
70 
80 
90 
100 


1,260 
1,160 
1,080 
1,010 
956 


2,640 
2,430 
2,260 
2,120 
2,000 


4,970 
4,570 
4,250 
3,990 
3,770 


10,200 
9,380 
8,730 
8,190 
7,730 


15,300 
14,100 
13,100 
12,300 
11,600 


29,400 
27,100 
2