Illinois

Environmental
Protection Agency

/ /3- —

Divsion of Water Pollution Control
2200 Churchill Road
P.O. Box 19276
Springfield, Illinois 62794-9276

IEPA/WPC/92-1 10b

Volunteer Lake Monitoring Program, 1991

Volume II: Northwestern Illinois Region

Printed on Recycled Paper

ILLINOIS VOLUNTEER LAKE MONITORING PROGRAM, 1991

VOLUME II

NORTHWESTERN ILLINOIS REGION
by

Amy J. Burns

Monitoring data collected by 27 volunteers

Lakes Program

Division of Water Pollution Control
Illinois Environmental Protection Agency
2200 Churchill Road. P.O. Box 19276
Springfield, Illinois 62794-9276

March, 1991

ILLINOIS STATE

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ACKNOWLEDGEMENTS

The Volunteer Lake Monitoring Program represents the coordinated activities of
many individuals, but first and foremost, is a product of the efforts of the
volunteers. The cooperation and assistance of the following 1991 Northwestern
Illinois volunteers is gratefully acknowledged: Frank P. Loftus, Kenneth
Beach, Jan Gedgaud, John Mai they, Joyce Grabrow, Robert Minnear, William
Siegner, Don Dunlavy, Mike Murrin, Michael Dunbar, Ray Sarna, Bill Konczal ,
Neil Dahl strand. Marge Avram, Jerry Avram, Art West, David Nolan, Bob
Neubauer, Eric Neubauer, Stacy Neubauer, Tom Rohner, Ron Malon, Janet Watson,
Robert Esser, Agnes Esser, Gale Park, and Mark McReynolds.

Illinois EPA's Lakes Program, Planning Section, Division of Water Pollution
Control, under the direction of Gregg Good, was responsible for the original
design and continued implementation of this program. Substantial assistance
was provided by the Illinois EPA's Office of Community Relations supervised by
Greg Michaud.

Program coordination was provided by Amy Burns for the Illinois EPA's Division
of Water Pollution Control and J. William Hammel for the Office of Community
Relations. Guidance was provided by Gregg Good.

Volunteers were trained by Amy Burns and the Illinois EPA Community Relations
Office. Tabular and graphical outputs of VLMP data were obtained with the
IBM-PC microcomputer using software developed by Jeff Mitzelfelt. Data
management and preparation of report tables and graphics were performed by
Beverly Albarracin and Amy Burns.

iii

Digitized by the Internet Archive
in 2018 with funding from
University of Illinois Urbana-Champaign

https://archive.org/details/volunteerlakemon1991unse

SECTION I: INTRODUCTION

The Illinois Environmental Protection Agency initiated the Volunteer Lake
Monitoring Program (VLMP) in 1981 as a result of growing public interest in
lakes and the need to expand the State's data base on lake water quality. The
purpose of the VLMP is to involve volunteers with lake monitoring, thereby
providing effective public education in lake ecology and management as well as
a useful data base for site-specific and statewide lake quality assessment.

VLMP participants are trained to measure water transparency with a Secchi
disc: an eight-inch round metal plate painted black and white in alternating
quadrants that is attached to a calibrated rope. The disc is lowered into the
water and the depth at which it disappears is recorded. This measurement,
called the Secchi disc depth, is used to document changes in the transparency
of the lake water. Typically, three sites are monitored in each lake twice
per month from May through October.

The volunteer also records a series of field observations such as water color,
suspended sediment and algae, aquatic weeds, and weather conditions. Recent
lake management activities or other factors which could impact the lake also
are documented.

Additional water quality data is collected by volunteers on selected lakes to
expand the lake water quality database. Parameters monitored include total
and volatile suspended solids, ni trate+ni tri te nitrogen, ammonia nitrogen, and
total phosphorus.

This report is Volume II of the following series of seven reports summarizing
the 1991 VLMP:

Volume I
Volume II
Volume III
Volume IV

Statewide Summary
Northwestern Illinois
Northeastern Illinois
West-Central Illinois

Volume V
Volume VI
Volume VII

East-Central Illinois
Southwestern Illinois
Southern Illinois

Volume I (the Statewide Summary) provides information on 42 lakes throughout
the State which were consistently monitored during 1991. The Statewide
Summary presents a detailed discussion of the monitoring methodology and data
analyses. Also included are tables and figures which present lake
characteristics, lake locations, comparisons of transparency data for lakes
participating in the 1990 VLMP, transparency trend analyses, a listing of
volunteers, and other information relating to the 1990 VLMP.

This Regional Report volume is a compilation of lake monitoring data for
20 lakes in the Northwestern Illinois region. A regional lake location map is
shown in Figure 1 and a ranking of lakes by average transparency in Figure 2
of this section. Section II contains lake data for those VLMP lakes that were
monitored during four or more semi-monthly sampling periods in the 1991
season. Data collected under lEPA's Ambient Lake Monitoring Program in 1991
is also included where available.

1

Lakes sampled 9 or more periods

1. Apple Canyon

2. Beaver

3. Black Oak

4. Buck

5. Carroll

6. George

7. Holiday

8. Le— Aqua — Na

9. Loon

10. Sinnissippi Bayou
1 1. Sunset

12. Woodhaven

Lakes sampled 4-8 periods

A. Galena

B. Goose

C. Heidecke

D. Lincoln

E. Menno— Haven

F. Pine

G. Shabbona

H. Summerset

-2-

RGURE 1

West-Central Region
1991 VLMP Lakes

APPLE CANYON
LOON
GALENA
BEAVER
GOOSE
LINOOLN
SUMMERSET
GEORGE
SHABBONA
WOOD HAVEN
CARROLL
HOLIDAY
BUOK
PINE
BLACK OAK
SUNSET
LE-AQUA-NA
HEIDECKE
MENNO-HAVEN
SINNISSIPPI BAYOU

0 50 100 150 200

FIGURE 2. Ranking of 20 Lakes by Average Secchi Transparency (Inches),
Illinois Volunteer Lake Monitoring Program, 199 1
(only lakes monitored four or more sampling periods).

-3-

SECTION II: 1991 VLMP LAKE DATA

This section contains data for those Northwestern Illinois 1991 VLMP lakes
which were monitored for four or more periods during the season. For each
lake the following information is provided: 1) a map of the lake, 2) 1991
Secchi disc readings (in tabular and graphic form), 3) 1991 total depth
readings, and 4) a summary of the 1991 field observations made by the
volunteer. Volunteer Water Quality Monitoring was performed and is presented
for Lakes Le-Aqua-Na, Buck, Holiday and Sinnissippi Bayou. Ambient Lake
Monitoring Program data are presented for Shabbona, Loon, and Heidecke Lakes.

Lake

Countv

Apple Canyon

Jo Daviess

Beaver

Grundy

Black Oak

Lee

Buck

DeKalb

Carrol 1

Carrol 1

Galena

Jo Daviess

George

Rock Island

Goose

Grundy

Heidecke

Grundy

Hoi iday

La Sal 1e

Le-Aqua-Na

Stephenson

Lincoln

Grundy

Loon

Kendal 1

Menno-Haven

Bureau

Pi ne

Lee

Shabbona

DeKalb

Sinnissippi

Whiteside

Bayou

Summerset

Stephenson

Sunset

Lee

Woodhaven

Lee

Volunteer

Frank P. Loftus and
Kenneth Beach
Joyce Grabow
Jan Gedgaud and
John Mai they
Robert Minnear

William Siegner and Art West

Don Dunlavy

Mike Murrin

Michael Dunbar

lEPA Staff

Robert and Agnes Esser
David Nolen
Ray Sarna

Bill Konczal , lEPA Staff

Mark McReynolds

Jan Gedgaud and

John Mai they

lEPA Staff

Bob Neubauer

Neil Dahl strand
Jan Gedgaud and
John Mai they
Jan Gedgaud and
John Mai they

AB:1at/sp/1475n, 1-7

4

APPLE CANYON - JO DAVIESS COUNTY

1991 SECCHI TRANSPARENCY
tPPK CtlirON. JO OtVIESS COUIIY

Date Total Depth
(Feet)

Secchi Trans.
(Inches)

Water Suspended Suspended Weeds Weeds Near
Color Sediment Algae at Site Shore

Site

1

2

3

1

2

3

1 :

2 ;

3

1 2

: 3

1 2

3

1 2 3

1 2 3

05/04/91

69.0

48.0

10.5

258

222

126B

2

2

2

0

0

0

1

1

1

0 0

0

1

1

1

05/19/91

69.0

48.0

10.0

178

167

106

2

2

6

0

0

2

2

2

2

0 0

0

1

1

3

06/02/91

69.0

48.0

10.0

243

228

78

3

3

3

0

0

1

1

1

1

0 0

0

2

1

4

06/23/91

70.0

49.0

11.0

228

192

69

2

2

2

0

0

0

0

0

0

0 0

0

1

1

2

07/05/91

69.0

48.0

10.0

206

138

46

2

2

6

0 0

3

2

2

3

0 0

0

2

2

2

07/21/91

69.0

48.0

10.0

159

129

39

2

2

6

0

0

3

2

2

3

0 0

0

2

2

2

08/04/91

69.0

48.0

10.0

141

105

57

2

3

3

0

0

1

1

3

3

0 0

0

1

2

3

08/11/91

69.0

48.0

10.0

87

70

51

4

4

6

0

0

1

3

3

3

0 0

0

2

2

1

08/24/91

69.0

48.0

10.0

87

87

59

3

3

6

0

0

2

3

3

4

0 0

0

3

4

4

09/15/91

69.0

48.0

10.0

230

81

28

2

3

4

0

0

1

1

3

4

0 0

2

1

1

4

09/28/91

69.0

48.0

9.0

69

62

42

4

4

4

0

0

0

4

4

4

0 0 0

1

1

3

10/12/91

69.0

48.0

10.0

63

69

57

6

6

6

1

1

2

2

2

2

0 0

0

0

1

3

10/22/91

69.0

48.0

9.0

78

81

39

4

4

4

0

0

0

4

4

4

0 0

0

1

1

3

Minimum 69.0

48.0

9.0

63

62

28

Maximum 70.0 49.0

11.0

258 228

126

Average

69.1

48.1

10.0

156 125

61

•

StdDev

0.3

0.3

0.5

73

59

28

Key

Color

1 'Clear

2 • light green

3 • moderately green

4 • very green

5 • pea soup

6 - greenish brown

7 - brownish green

8 • light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

12 -tan

13 - yelowish

14 • grayish

15 - other

Other:

0 - none

1 • minimal

2 - slight

3 • moderate

4 - substantial

-5-

BEAVER - GRUNDY COUNTY

Date Total Depth Secchi Trans. Water Suspended Suspended Weeds Weeds Near

(Feet) (Inches) Color

Site 1

2

3

1

2

3

1 :

2 :

3

05/30/91 20.0

25.0

9.0

171

147

82

2

2

2

06/14/91 20.0

25.0

9.0

102

165

82

2

2

3

06/26/51 19.5

24.5

8.5

83

114

70

3

2

3

07/12/91 19.5

24.0

9.0

66

80

70

6

6

6

07/29/91 18.5

24.0

8.5

58

106

95

6

3

6

08/13/91 18.5

24.0

8.5

66

82

58

6

6

6

08/31/91 19.0

23.5

7.5

61

59

57

5

4

6

10/09/91 19.0

24.0

8.5

62

126

71

5

2

4

10/23/91 19.0

23.0

9.0

75

118

72

2

2

4

Minimum 18.5 23.0

7.5

58

59

57

Maximum 20.0 25.0

1 9.0

171

165

95

Average 19.2 24.1

8.6

83

111

73

Std Dev 0.6

0.7

0.5

36

34

12

Sediment

Algae

at Site

Shore

1 2

3

1 2

3

1 2

3

1 2

3

1

1

1

1

1

1

0

0

0

1

1

1

1

1

1

1

1

2

0

0

1

1

1

2

1

1

2

3

1

2

0

0

0

1

1

2

2

1

1

2

1

2

0

0

1

1

2

2

1

1

1

2

1

1

0

1

1

1

1

2

1

2

2

2

2

0

0

2

1

1

2

0

0

2

3

3

2

0

0

0

3

1

3

2

1

1

3

2

2

0

0

0

1

0

2

1

1

1

1

1

3

0

0

0

0

1

1

Key

Color

1 - clear

2 • light green

3 - moderately green

4 - very green

5 - pea soup

6 - greenish brown

7 - brownish green

8 - light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

12 • tan

1 3 - yelowish

14 - grayish

1 5 - other

Other:

0 - none

1 - minimal

2 • slight

3 - moderate

4 - substantial

-6-

BLACK OAK - LEE COUNTY

N

Date Total Depth Secchi Trans. Water Suspended Suspended Weeds Weeds Near

(Feet)

(Inches)

Color

Site

1

2

3

1

2

3

1

2 3

05/15/91

7.0

8.5

8.0

36

30

30

7

7 7

06/04/91

8.0

8.0

8.5

52

60

60

3

3 3

06/25/91

7.5

8.0

7.0

40

38

42

7

7 7

07/12/91

7.5

8.0

8.0

29

28

30

6

6 6

07/23/91

7.0

8.0

7.5

22

18

24

5

5 5

08/15/91

7.0

7.5

8.0

19

20

18

6

6 6

08/29/91

7.0

8.0

8.0

12

12

12

5

5 5

09/11/91

7.0

7.5

7.5

12

12

12

5

5 5

09/27/91

7.0

7.5

7.5

12

12

14

5

5 5

10/11/91

6.0

8.0

8.0

18

18

18

5

5 5

10/18/91

7.5

7.5

8.5

18

18

18

5

5 5

Minimum 6.0 7.5

7.0

12

12

12

Maximum 8.0

8.5

8.5

52

60

60

Average

7.1

7.9

7.9

25

24

25

StdDev

0.5

0.3

0.5

13

14

15

Sediment

Algae

at Site

Shore

1 2 3

1 2 3

1 2 3

1 2 3

1 1 1

0 0 0

0 0 0

0 0 0

2 2 3

2 2 2

0 0 0

0 0 0

3 3 3

2 2 2

0 0 0

1 0 0

2 2 2

3 3 3

0 0 0

0 0 0

1 1 1

4 4 4

0 0 0

1 1 1

3 3 3

4 4 4

0 0 0

0 0 0

1 1 1

4 4 4

0 0 0

1

1 1 1

4 4 4

0 0 0

0 0 0

1 1 1

4 4 4

0 0 0

1 1 1

1 1 1

4 4 4

0 0 0

0 0 0

1 1 1

4 4 4

0 0 0

0 0 0

Key

Color

1 •clear

2 • light green

3 • modCTately green

4 - very green

5 - pea soup

6 • greenish brown

7 • brownish green

8 • light brown

9 • moderately brown

10 •very brown

1 1 • milky chocolate

12 •tan

13 • yelowish

14 •grayish

15 -other

Other:

0-none

1 •minimal

2 • slight

3 •moderate

4 - substantial

-7-

BUCK - DEKALB COUNTY

Date Total E>epth Secchi Trans. Water Suspended Suspended Weeds Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site

1

2

3

1

2 3

1

2 3

1

2

3

1

2

3

1

2

3

1

2

3

05/01/91

14.0

4.0

4.0

36

48B

46W 6

6 6

3

3

2

3

3

2

0

2

3

0

0

0

05/16/91

14.0

4.0

4.0

28

32

36

7

7 7

3

3

3

3

3

3

0

3

4

1

4

4

06/01/91

19.5

9.0

8.0

5

5

5

10

10 10

4

4

4

0

0

0

0

0

0

0

0

0

06/18/91

14.0

4.5

4.0

65

34

40

2

2 2

0

0

0

1

1

1

0

1

0

1

3

1

07/01/91

14.0

4.0

4.0

30

24

24

2

2 2

0

0

0

3

3

3

0

0

0

0

0

0

07/16/91

13.5

3.0

3.0

32

26

24

2

2 2

0

0

0

3

3

3

0

0

0

0

0

0

08/02/91

13.0

4.0

3.5

18

18

18

3

3 3

0

0

0

3

3

3

0

0

0

0

0

0

08/14/91

14.0

4.0

4.0

24

24

24

3

3 3

0

0

0

3

3

3

0

0

0

0

0

0

09/01/91

14.0

4.0

4.0

24

20

18

15

15 15

3

3

3

0

0

0

0

0

0

0

0

0

09/17/91

13.0

4.0

4.0

22

24

30

7

7 7

3

3

3

3

3

3

0

0

0

0

0

0

10/03/91

14.0

4.0

4.0

28

25

24

8

8 8

3

3

3

0

0

0

0

0

0

0

0

0

10/15/91

14.0

4.0

4.0

55

50B

48B

2

2 2

2

2

2

2

2

2

0

0

0

0

0

0

Minimum

i 13.0

3.0

3.0

5

5

5

Maximum 19.5

9.0

8.0

65

50

48

Average

14.3

4.4

4.2

31

28

28

Std Dev

1.7

1.5

1.2

16

12

13

Key

Color

1 - clear

2 - light green

3 - moderately green

4 - very green

5 - pea soup

6 - greenish broun

7 - brownish green

8 - light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

12 -tan

13 - yelowish

14 - grayish

15 - other

Other:

0 - none

1 - minimal

2 - slight

3 • moderate

4 - substantial

-8-

1991 VOLUNTEER L/UCE MONITORING DATA FOR BUCK LAKE. DEKALB COUNTY

Map

S

Sample

Depth

Total

Volatile

Nitrate/

Ammonia/

Total

Code

1

Date

of

Suspended

Suspended

Nitrite

Ammonium

Phosphorus

t

Sample

Solids

Solids

Nitrogen

Nitrogen

e

(MM/DD/YY)

(Feet)

(mg/L)

(mg/L)

(mg/L)

(mg/L)

(mg/L)

VTZN

1

05/13/91

1

1

1

11.00

0.01

0.005

VTZN

1

06/18/91

1

2

1

9.90

0.09

0.026

VTZN

1

07/15/91

1

5

2

1.80

0.02

0.145

VTZN

1

08/13/91

1

6

3

0.05

0.03

0.102

VTZN

1

09/17/91

1

7

4

0.01

0.01

0.292

Site

1 Mean Surface

4

2

4.55

0.03

0.114

VTZN

3

05/13/91

1

2

1

-9999

0.03

0.025

VTZN

3

06/18/91

1

4

2

9.40

0.09

0.025

VTZN

3

07/15/91

1

6

4

1.80

0.04

0.109

VTZN

3

08/13/91

1

6

4

0.09

0.02

0.088

VTZN

3

09/17/91

1

12

6

0.25

0.11

0.210

Site

3 Mean Surface

6

3

2.89

0.06

0.091

Date

Mean

05/13/91

2

1

11.00

0.02

0.015

Date

Mean

06/18/91

3

2

9.65

0.09

0.025

Date

Mean

07/15/91

6

3

1.80

0.03

0.127

Date

Mean

08/13/91

6

4

0.07

0.03

0.095

Date

Mean

09/17/91

10

5

0.13

0.06

0.251

Lake

Mean

Surface

5

3

3.81

0.04

0.103

-9-

CARROLL - CARROLL COUNTY

Date

Total Depth Secchi Trans. Water Suspended Suspended Weeds Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site 1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

04/14/91 60.0

38.0

42.0

28

24

24

7

7

7

4

4

4

3

3

3

1

1

1

2

2

2

04/24/91 60.0

37.0

41.0

38

30

30

7

7

7

2

3

3

1

1

1

0

0

0

0

0

0

05/12/91 59.5

39.0

42.0

65

72

61

3

2

3

0

0

0

3

2

3

0

0

0

1

1

1

05/26/91 60.0

25.0

42.0

71

60

42

3

3

6

1

1

3

2

2

2

0

0

0

1

1

1

06/08/91 60.0

37.0

41.0

72

44

62

2

3

3

1

2

2

3

3

3

0

0

0

1

1

1

06/24/91 59.0

36.0

40.0

30

24

26

4

7

7

1

3

3

4

4

4

0

0

0

1

1

1

07/08/91 58.0

35.0

38.0

26

22

24

6

7

7

3

4

4

4

4

4

0

0

0

1

1

1

07/20/91 57.0

24.0

36.0

52

44

47

6

6

6

2

2

2

4

4

4

0

0

0

1

1

1

08/10/91 57.0

34.0

36.0

49

39

44

6

7

6

3

3

2

3

3

3

0

0

0

1

1

1

08/25/91 50.0

18.0

34.0

38

28

35

6

7

6

2

3

2

3

3

3

0

0

0

1

1

1

09/07/91 48.0

18.0

32.0

38

32

34

6

7

6

3

4

3

4

4

4

0

0

0

1

1

1

09/27/91 47.0

19.0

32.0

48

24

44

4

9

4

2

4

2

3

3

3

0

0

0

1

1

1

10/09/91 47.0

19.0

32.0

32

22

32

3

7

3

2

4

2

2

3

3

0

0

0

1

1

1

10/23/91 47.0

22.0

32.0

30

22

26

6

6

6

3

3

3

3

3

3

0

0

0

1

1

1

Minimum 47.0 18.0 32.0

26

22

24

Maximum 60.0 39.0 42.0

72

72

62

Average
Std Dev

54.1 27.2 36.4
5.7 8.3 4.1

46 36 40
16 16 13

Key 1 - clear

Color 2 - light green

3 - moderately green

4 - very green

5 - pea soup

6 - greenish brown

7 - brownish green

8 - light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

12 - tan

13 - yelowish

14 - grayish

1 5 - other

Other: 0 - none

1 - minimal

2 - slight

3 - moderate

4 - substantial

-10-

CARROLL - CARROLL COUNTY

1991 SECCHI TRANSPARENCY
CtRROll. CARROll C0UN1Y

Date Total Depth Secchi Trans. Water Suspended Suspended Weeds Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at

Site

Shore

Site

4 5

6

4

5 6

4 f

1 6

4 5 6

4 5 6

4

5 6

4

5 6

04/14/91

16.0

17.0

22

22

7

7

4 4

3 3

1

1

2

2

04/24/91

17.0

15.0

24

26

7

7

3 3

1 1

0

0

0

0

05/12/91

16.0

17.0

60

44

2

3

0 1

2 3

0

0

1

1

05/26/91

17.0

17.0

68

26

3

7

1 4

2 2

0

0

1

1

06/08/91

17.0

16.0

38

42

4

4

3 3

3 3

0

0

1

1

06/24/91

17.0

16.0

18

20

7

7

4 4

4 4

0

0

1

1

07/08/91

16.0

15.0

14

12

10

10

4 4

4 4

0

0

1

1

07/20/91

14.0

8.0

36

42

6

6

3 3

4 4

0

0

1

1

08/10/91

14.0

6.0

32

34

7

7

4 4

3 3

0

0

1

1

08/25/91

12.0

6.0

30

30

10

10

4 4

3 3

0

0

1

1

09/07/91

12.0

8.0

30

20

7

7

4 4

4 4

0

0

1

1

09/27/91

11.0

7.0

18

28

11

7

4 3

3 3

0

0

1

1

10/09/91

11.0

7.0

18

32

10

3

4 2

3 2

0

0

1

1

10/23/91

11.0

7.0

20

22

7

6

4 3

3 3

0

0

1

1

Minimum 11.0

6.0

14

12

Maximum 17.0

17.0

68

44

Average

14.0

10.9

32

29

StdDev

2.5

4.8

17

10

Key

Color

1 - clear

2 • light green

3 • ntoderately green

4 - very green

S- pea soup

6 • greenish brown

7 • brownish green

8 • light brown

9 • moderately brown

10 - very brown

1 1 - milky chocolate

12 -tan

13 -yelowish

14 - grayish

15 -other

Other.

0-none

1 -niininul

2 • slight

3 - moderate

4 - substantial

-11-

GALENA - JO DAVIESS COUNTY

Date

Total Depth Secchi Trans.

Water

Suspended

Suspended

Weeds

Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site

1

2 3 1

2

1

3

1

2 3

1 2

3

1 2

3

1

2

3

1 2 3

1

05/10/91

48.0

28.0 7.0

156

150

84B

1

1 1

0

0 0

0

0

0

0

0

2

1 1

1

05/31/91

48.0

26.0 7.0

141

126

66

1

1 1

0

0 1

0

0

0

0

0

2

1 1

1

06/30/91

47.0

27.0 7.0

78

66

48

2

2 3

0

1 1

1

1

1

0

1

3

1 2

3

07/15/91

46.0

27.0 7.0

48

48

42

1

2 3

0

0 1

1

1

2

0

1

3

1 2

2

08/07/91

47.0

27.0 7.0

114

126

60

1

1 3

0

0 1

0

0

1

0

0

0

1 1

2

Minimum 46.0

26.0 7.0

48

48

42

Maximum 48.0

28.0 7.0

156

150

84

Average 47.2 27.0 7.0

107

103

60

Std Dev

0.8

0.7 0.0

45

44

16

Key

Color

1 - clear

2 - light green

3 - moderately green

4 - very green

5 - pea soup

6 - greenish brown

7 - brownish green

8 - light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

12 - tan

1 3 - yelowish

1 4 - grayish

1 5 - other

Other:

0 - none

1 - minimal

2 - slight

3 - moderate

4 - substantial

-12-

GEORGE - ROCK ISLAND COUNTY

1991 SECCHI TRANSPARENCY
CCORCI. too ISltND COUNIV

Date

Total Depth

Secchi Trans.

Water

Su^nded

Suspended

Weeds

Weeds Near

(Feet)

(Inches)

Color

SedinKnt

Algae

at Site

Shore

Site

1 2

3

1

2 3

1 2

3

1 2

3

1 2

3

1 2 3

1 2 3

05/10/91

50.5 29.0

7.0

48

43

18

6

6

9

1

1 3

1

1

1

0 0 0

1 0 1

05/31/91

50.5 31.0

5.5

30

27

14

7

7

10

2

2 3

2

2

2

0 0 0

2 2 2

06/28/91

49.0 31.0

6.0

43

42

27

2

2

3

0

0 1

3

3

3

0 0 0

1 2 2

07/12/91

50.0 29.5

6.0

46

38

18

2

2

7

0

0 3

3

3

3

0 0 0

1 1 1

07/29/91

49.0 30.5

6.0

64

55

27

2

2

6

0

0 2

2

2

2

0 0 0

1 2 2

08/14/91

49.5 29.0

6.0

60

50

28

2

2

6

0

0 1

2

2

2

0 0 0

1 2 2

08/30/91

47.0 30.5

6.0

72

55

29

1

2

6

0

0 2

2

2

3

0 0 0

1 1 2

09/13/91

49.0 30.0

5.0

61

47

21

1

2

6

0

0 1

1

2

3

0 0 0

1 1 2

10/15/91

49.5 30.0

6.0

47

33

24

2

3

6

0

1 1

3

3

3

0 0 0

1 1 1

Minimum 47.0 29.0 5.0 30 27 14
Maximum 50.5 31.0 7.0 72 55 29
Average 49.3 30.1 5.9 52 43 23

StdDev 1.1 0.8 0.5 13 10 5

Key

Color

1 -clear

2 • light green

3 - iiKMlerately green

4 -very green

3 - pea soup

6 - greenish brown

7 - brownish green

8 • light brown

9 • moderately brown

10 - very brown

11- milky chocolate

12 -tan

13 -yelowish
14 -grayish

IS -other

Other.

0-none

I - minimal

2 • sli^

3 -moderate

4 - substantial

-13-

GOOSE - GRUNDY COUNTY

1991 SECCHI TRANSPARENCY
COOSt. CnnOY COUMIY

Date

Total Depth Secchi Trans.

Water

Suspended

Suspended

Weeds

Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site

1

2 :

i 1

2

3

1 2

3

1

2

3

1

2 3

1

2 3

;

1

2

3

05/14/91

26.0

15.5

5.5

71

66

26

2

2

2

0

0

0

1

1

1

0

0

0

1

2

1

05/27/91

25.5

15.5

5.5

102

80

63

2

2

2

0

0

0

1

1

1

0

0

1

1

2

1

06/16/91

26.0

15.0

5.5

84

74

54

2

2

2

0

0

0

1

1

1

0

0

3

2

3

2

06/30/91

26.0

15.0

5.0

90

78

56

2

2

2

0

0

0

1

1

1

0

0

4

3

4

3

07/16/91

25.0

14.0

5.0

80

76

48

2

2

2

0

0

0

2

2

2

1

0

4

3

4

3

07/31/91

24.5

14.0

4.5

56

56

46

2

2

2

0

0

0

1

1

1

0

0

3

3

4

4

08/14/91

25.0

14.0

4.0

62

60

43

2

2

2

0

0

0

1

1

2

0

0

4

3

4

4

08/29/91

25.0

14.0

4.0

65

62

46

2

2

2

0

0

0

1

1

2

0

0

4

4

4

4

09/18/91

24.5

13.5

4.0

49

50

46

2

2

2

1

1

1

2

2

2

0

0

2

3

4

4

09/30/91

24.0

14.0

4.0

50

54

42

2

2

2

1

1

1

2

2

2

0

0

0

3

3

3

10/13/91

24.5

14.5

4.5

66

66

44

2

2

2

1

1

1

2

2

2

0

0

0

1

2

3

Minimum 24.0

13.5

4.0

49

50

26

Maximum 26.0

15.5

5.5

102

80

63

Average

25.1

14.5

4.7

70

66

47

Std Dev

0.7

0.7

0.6

17

10

9

Key

Color

1 - clear

2 - light green

3 • moderately green

4 - very green

5 - pea soup

6 - greenish brown

7 - brownish green

8 - liglit brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

12 - tan

13 - yelowish

1 4 - grayish

1 5 - other

Other:

0 - none

1 - minimal

2 • sliglit

3 - moderate

4 - substantial

-14-

GOOSE - GRUNDY COUNTY

1991 SECCHI TRANSPARENCY
GOOSE. GRUNDY COUNTY

Date

Total Depth

Secchi Trans.

Water

Suspended

Suspended

Weeds

Weeds Near

(Feet)

Gnches)

C^lor

Sediment

Algae

at Site

Shore

Site

4

5 6

4

5 6

4 5 6

4

5 6

4

5 6

4

5 6

4

5 6

05/14/91

6.0

5.0

22

26

7 7

1

1

0

0

0

0

1

1

05/27/91

5.5

5.0

21

30

14 7

2

2

0

0

0

0

1

1

06/16/91

5.0

5.0

12

19

14 6

2

2

0

0

1

0

2

1

06/30/91

4.5

4.5

18

24

6 6

2

2

0

0

2

1

3

2

07/16/91

4.5

4.0

16

18

14 6

2

2

1

1

2

0

4

3

07/31/91

4.0

4.0

12

14

14 6

1

1

1

1

0

1

4

2

08/14/91

4.0

4.0

18

16

3 6

1

1

2

2

0

0

3

2

08/29/91

4.0

4.0

19

19

3 3

1

1

2

2

1

0

4

3

09/18/91

4.0

4.0

10

12

14 6

2

2

1

1

0

0

3

2

09/30/91

3.5

3.5

20

18

14 6

2

2

2

2

0

0

2

1

10/13/91

4.0

4.0

25

21

14 6

2

2

1

1

0

0

1

1

Minimum

1 3.5

3.5

10

12

Maximum 6.0

5.0

25

30

Average

4.5

4.3

18

20

StdDev

0.8

0.5

5

5

Key

Color

l-dear

2 - ligM green

3 - moderately green

4 -very green

5 -peaioup

6 • greeniih brown

7 - browniih green

8 - light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate
12-tan

13 -yelowith
14 -grayish

15 -other

OOter.

0 -none

1 - minimal

2 - slight

3 - moderate

4 - substantial

-15-

HEroECKE - GRUNDY COUNTY

Date Total Depth Secchi Trans. Water Suspended Suspended Weeds Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site

1

2

3

1

2 3

1 2

3

1 2

3

1 2 3

1 2 3

1 2 3

05/07/91

11.0

11.0

15.0

22

24

7

7

7 2

2 2

0 0 0

0 0 0

1 1 1

06/13/91

8.5

17.0

6

6

1

1

0 0

0 0

0 1

07/18/91

11.0

17.5

23

26

7

7

0

0

1 1

0 0

1 0

08/15/91

11.0

19.0

8

18

7

7

0

0

0 0

0 0

1 1

Minimum

8.5

11.0

15.0

18

18

Maximum 1 1.0

19.0

15.0

23

26

Average

10.4

16.1

15.0

21

22

Std Dev

1.3

3.5

0.0

4

4

Key

Color

1 - clear

2 - light green

3 - moderately green

4 - very green

5 - pea soup

6 - greenish brown

7 - brownish green

8 - light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

12 • tan

13 - yelowish

1 4 - grayish

1 5 - otlier

Other;

0 - none

1 - minimal

2 - slight

3 - moderate

4 - substantial

-16-

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^ 8 S Q

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8 8 8 8

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w w w w

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A A K

^ ^ m ^

8

m

8

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U

<•

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8

O

3 3 3 3

ii 1

t 1 t t

6 8 8 8

8

•>

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6

««

8

* * * 3

B C £ C

1

o o o

K* ^

A O A

««

8

o 3 o o

*%*>*-«*-»*

8 5 8 8

S

K, **». K

8 5 8 5
^

V

U

m

ja I

M * «« V

^ ^

8 8 6 8

^ m ^ ^

C

i

O

C

i

-K ’N* «»«* N*

8 8 6 8

n M M M

e

1

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-*» K

8 6 8

AAA

I

A

^

8 8 6 8

0**0

1

o

S 3 8 3

e e e e

9

A

e

3

i!

HIS

*«

M

1

•

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HH

**

A

HI

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«#««««««

8 8 8 8

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-17-

Dissolved Oxygen _ Tenperature

HOLIDAY - LA SALLE COUNTY

Date Total Depth

Secchi Trans.

Water

Suspended

Suspended

Weeds

Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site 1

2

3

1

2

3

1

2

3

1 2 3

1 2

3

1 2 3

1 2 3

05/01/91 14.0

4.0

4.0

36

48B

46W

6

6

6

3 3 2

3

3

2

0 2 3

0 0 0

05/16/91 14.0

4.0

4.0

28

32

36

7

7

7

3 3 3

3

3

3

0 3 4

1 4 4

06/01/91 19.5

9.0

8.0

5

5

5

10

10

10

4 4 4

0

0 0

0 0 0

0 0 0

06/18/91 14.0

4.5

4.0

65

34

40

2

2

2

0 0 0

1

2

2

0 1 0

1 3 1

07/01/91 14.0

4.0

4.0

30

24

24

2

2

2

0 0 0

3

3

3

0 0 0

0 0 0

07/16/91 13.5

3.0

3.0

32

26

24

2

2

2

0 0 0

3

3

3

0 0 0

0 0 0

08/02/91 13.0

4.0

3.5

18

18

18

3

3

3

0 0 0

3

3

3

0 0 0

0 0 0

08/14/91 14.0

4.0

4.0

24

24

24

3

3

3

0 0 0

3

3

3

0 0 0

0 0 0

09/01/91 14.0

4.0

4.0

24

20

18

15

15

15

3 3 3

0 0

0

0 0 0

0 0 0

09/17/91 13.0

4.0

4.0

22

24

30

7

7

7

3 3 3

3

3

3

0 0 0

0 0 0

10/03/91 14.0

4.0

4.0

28

25

24

8

8

8

3 3 3

0

0

0

0 0 0

0 0 0

10/15/91 14.0

4.0

4.0

55

50B

48B

2

2

2

2 2 2

2

2

2

0 0 0

0 0 0

Minimum 13.0

3.0

3.0

5

5

5

Maximum 19.5

9.0

8.0

65

50

48

Average 14.3

4.4 4.2

31

28

28

Std Dev 1.7

1.5

1.2

16

12

13

Key

Color

1 -clear

2 • light green

3 • moderately green

4- very green

5- pea soup

6 • greenish brown

7 • brownish green

8 • light brown

9 • moderately brown

10 - very brown

11- milky chocolate

12 -tan

13 -yelowish

14 -grayish

15 -other

Other.

0-none

1 -minimal

2 - slight

3 -moderate

4 - substantial

-19-

1991 VOLUNTEER LAKE MONITORING DATA FOR HOLIDAY, LA SALLE COUNTY

Map

S

Sample

Depth

Total

Code

i

t

Date

of

Sample

Suspended

Solids

e I

CMM/DD/YY)

(Feet)

(mg/L)

VTX

1

05/21/91

1

5-

VTX

1

06/25/91

1

4

VTX

1

07/23/91

1

8

VTX

1

08/27/91

1

4

VTX

1

09/25/91

1

8

VTX

1

10/22/91

1

15

Site

1 Mean Surface

7

VTX

2

05/21/91

1

5

VTX

2

06/25/91

1

5

VTX

2

07/23/91

1

34

VTX

2

08/27/91

1

9

VTX

2

09/25/91

1

18

VTX

2

10/22/91

1

20

Site

2 Mean Surface

15

VTX

3

05/21/91

1

33

VTX

3

06/25/91

1

10

VTX

3

07/23/91

1

17

VTX

3

08/27/91

1

18

VTX

3

09/25/91

1

24

VTX

3

10/22/91

1

40

Site

3 Mean Surface

24

Date

Mean

05/21/91

14

Date

Mean

06/25/91

6

Date

Mean

07/23/91

20

Date

Mean

08/27/91

10

Date

Mean

09/25/91

17

Date

Mean

10/22/91

25

Lake

Mean

Surface

15

Volatile

Nitrate/

Ammonia/

Total

Suspended

Nitrite

Ammonium

Phosphorus

Solids

Nitrogen

Nitrogen

(mg/L)

(mg/L)

(mg/L)

(mg/L)

2

7.90

0.09

0.028

2

9.90

0.15

0.037

6

3.20

0.08

0.045

2

0.01

0.06

0.080

4

0.06

0.30

0.216

7

0.01

0.03

0.083

4

3.51

0.12

0.082

3

8.10

0.03

0.061

3

9.60

0.12

0.063

30

2.50

0.18

0.135

6

0.01

0.03

0.163

7

0.03

0.19

0.272

9

0.01

0.05

0.104

10

3.38

0.10

0.133

6

15.00

0.15

0.117

3

9.00

0.06

0.080

14

0.63

0.66

0.276

9

0.01

0.32

0.198

13

0.01

0.06

0.276

16

0.01

0.65

0.129

10

4.11

0.32

0.179

4

10.33

0.09

0.069

3

9.50

0.11

0.060

17

2.11

0.31

0.152

6

0.01

0.14

0.147

8

0.03

0.18

0.255

11

0.01

0.24

0.105

8

3.67

0.18

0.131

-20-

LE-AQUA-NA - STEPHENSON COUNTY

Date Total Depth Secchi Trans. Water Suspended Suspended Weeds Weeds Near
(Feet) (Inches) Color Sediment Algae at Site Shore

Site

1

2 3 1

2

3

1 2

3

1

2

3

1

2

3

1

2

3

1

2

3

05/10/91

22.0

16. 6.0

32

33

35

6

6

6

1

1

1

1

1

1

0

0

0

1

1

1

05/28/91

22.0

16.0 6.0

56

61

53

6

6

6

1

1

1

1

1

3

0

0

4

2

2

3

06/10/91

22.0

16.0 9.0

6

24

60

5

4

3

0

0

0

4

3

2

0

0

0

1

2

4

06/25/91

22.0

16.0 6.0

36

27

26

6

6

6

1

1

2

3

3

4

2

2

3

3

3

4

07/10/91

22.0

16.0 6.0

11

11

11

4

4

4

1

1

1

4

4

4

1

2

3

2

2

3

07/24/91

22.0

16.0 6.0

15

14

14

7

7

7

1

1

1

3

3

3

2

2

2

1

1

3

08/12/91

22.0

16.0 6.0

26

22

22

7

7

7

1

1

1

1

1

1

0

0

1

0

0

2

08/26/91

22.0

16.0 6.0

27

26

21

6

6

6

1

1

1

2

2

2

0

0

1

1

1

3

09/11/91

22.0

16.0 6.0

20

21

20

6

6

6

1

1

1

2

2

2

1

1

2

1

1

3

09/23/91

22.0

16.0 6.0

16

15

15

7

7

7

1

1

1

1

1

2

0

0

1

1

1

2

10/11/91

22.0

16.0 6.0

17

17

17

8

8

8

1

1

1

1

1

1

0

0

0

0

0

1

10/23/91

22.0

16.0 6.0

27

27

28

8

8

8

1

1

1

1

1

1

0

0

0

1

1

2

Minimum 22.0 16.0 6.0 6 11 11
Maximum 22.0 16.0 9.0 56 61 60
Average 22.0 16.0 6.3 24 25 27
Std Dev 0.0 0.0 0.9 13 13 15

Key

Color

1 -clear

2 • light green

3 • moderately green

4- very green

5 -peaaoup

6 - greenish brown

7 • brownish green

8 - light brown

9 • moderately brown

10 -very brown

1 1 - milky chocolate

12 -tan

13 -yelowish

14 - grayish
15-other

Other.

O-none

1 -mininul

2 • slight

3 -moderate

4 - subetantial

-21-

1991 VOLUNTEER LAKE MONITORING DATA FOR LE-AQUA-NA, STEPHENSON COUNTY

Map

S

Sample

Depth

Total

Code

i

Date

of

Suspended

t

Sample

Solids

e

(MM/DD/YY)

(Feet)

(mg/L)

RPA

1

05/28/91

1

7

RPA

1

06/25/91

1

7

RPA

1

07/24/91

1

22

RPA

1

08/26/91

1

3

RPA

1

09/23/91

1

20

RPA

1

10/23/91

1

5

Site

1

Mean Surface

11

RPA

2

05/28/91

1

1

RPA

2

06/25/91

1

14

RPA

2

07/24/91

1

14

RPA

2

08/26/91

1

4

RPA

2

09/23/91

1

21

RPA

2

10/23/91

1

8

Site

2

Mean Surface

10

RPA

3

05/28/91

1

3

RPA

3

06/25/91

1

12

RPA

3

07/24/91

1

8

RPA

3

08/26/91

1

2

RPA

3

09/23/91

1

19

RPA

3

10/23/91

1

9

Site

3

Mean Surface

9

Date

Mean 05/28/91

4

Date

Mean 06/25/91

11

Date

Mean 07/24/91

15

Date

Mean 08/26/91

3

Date

Mean 09/23/91

20

Date

Mean 10/23/91

7

Lake

Mean Surface

10

Volatile

Nitrate/

Ammonia/

Total

Suspended

Nitrite

Ammonium

Phosphorus

Solids

Nitrogen

Nitrogen

(mg/L)

(mg/L)

(mg/L)

(mg/L)

2

1.80

0.22

0.068

6

1.60

0.51

0.150

12

0.23

0.35

0.250

2

0.01

0.03

0.125

8

0.04

0.41

0.272

3

0.20

0.73

0.148

6

0.65

0.37

0.169

1

1.80

0.18

0.061

12

1.50

0.20

0.210

7

0.21

0.38

0.231

3

0.01

0.04

0.123

7

0.04

0.32

0.245

3

0.19

0.74

0.152

6

0.63

0.31

0.170

2

1.90

0.16

0.084

11

1.50

0.31

0.180

5

0.21

0.40

0.229

2

0.01

0.04

0.130

8

0.05

0.30

0.230

3

0.22

0.60

0.130

5

0.65

0.30

0.164

2

1.83

0.19

0.071

10

1.53

0.34

0.180

8

0.22

0.38

0.237

2

0.01

0.04

0.126

8

0.04

0.34

0.249 ‘

3

0.20

0.69

0.143

5

0.64

0.33

0.168

-22

LINCOLN - GRUNDY COUNTY

1991 SECCHf TRANSPARENCY
lINCOm. CBUNOY COUKIY

Date

Total Depth

Secchi Trans.

Water

Suspended

Suspended

Weeds Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site

1

2

3

1

2 3

1 2

3

1 2

3

1

2

3

1

2

3

1

2

3

04/15/91

56.0

29.0

49.0

156

198

156

3

2

3

2

1 1

2

2

1

0

0

0

0

1

0

04/18/91

56.0

29.0

49.0

156

198

156

3

2

3

2

1 1

2

2

1

0

0

0

0

1

0

04/29/91

56.0

30.0

49.0

54

216

238

2

3

3

3

1 1

1

1

2

0

0

0

1

1

1

05/19/91

54.0

30.0

51.0

57

132

216

15

3

3

3

1 1

1

1

1

0

0

0

1

1

1

06/01/91

54.0

30.0

49.0

96

101

164

15

2

4

3

2 1

1

1

1

0

0

0

1

1

1

06/15/91

52.0

28.0

50.0

58

120

120

15

3

3

3

2 2

1

2

2

0

0

0

1

1

1

06/30/91

52.0

29.0

50.0

61

88

82

15

2

3

2

2 2

1

1

1

0

0

0

1

1

1

07/15/91

50.0

29.0

50.0

62

96

96

15

2

2

3

2 2

1

1

1

0

0

0

1

1

1

07/29/91

48.0

28.0

50.0

58

102

96

15

2

2

2

2 2

1

1

1

0

0

0

2

2

1

08/11/91

50.0

28.0

50.0

62

106

110

15

2

3

3

2 2

1

1

1

0

0

0

1

2

1

Minimum 48.0 28.0 49.0

57

88

82

Maximum 54.0 30.0

51.0

96

132

216

Average

51.4

28.9

50.0

65

106

126

StdDev

2.2

0.9

0.6

14

15

48

Key

Color

1 -clear

2 • light green

3 • moderately green

4 - very green

3 • pea foup

6 • greenish brown

7 - brownish green

8 - light brown

9 • moderately brown

10 -very brown

1 1 - milky chocolate

12 -tan

13 -yelowish

14 - grayish

15 -other

Olher:

0-none

1 - minimal

2 - slight

3 - moderate

4 - substantial

-23-

LINCOLN - GRUNDY COUNTY

1991 SECCHI TRANSPARENCY
L I NCOL N. GRUNDT COUNTY

Date

To tal Depth

Secchi Trans.

Water

Suspended

Suspended

Weeds

Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site

4

5 6

4

5 6

4 5 6

4

5 6

4 5 6

4

5 6

4

5 6

04/15/91

40.0

31.0

96

89

14

2

1

1

0

0

0

0

04/18/91

40.0

31.0

96

89

14 13

3

1

1 2

0

0

0

0

04/29/91

40.0

30.0

75

168

2 2

3

1

1 1

0

0

1

1

05/19/91

40.0

31.0

74

198

15 3

3

1

1 2

0

0

1

1

06/01/91

40.0

30.0

84

86

15 16

3

3

1 1

0

0

1

1

06/15/91

42.0

30.0

70

86

16 4

3

2

1 2

0

0

1

1

06/30/91

40.0

30.0

71

70

15

3

2

1

0

0

1

1

07/15/91

40.0

30.0

80

97

15 3

3

2

1 1

0

0

1

1

07/29/91

40.0

29.0

82

72

15 13

2

3

1 1

0

0

1

1

08/11/91

40.0

29.0

70

84

15 13

3

2

1 1

0

0

1

1

Minimum

40.0

29.0

70

70

Maximum

1 42.0

31.0

84

198

Average

40.3

29.9

76

99

Std Dev

0.8

0.7

6

45

Key

1 - clear

4 - very green

7 - brownish green

10 - very brown

1 3 - yelowish

Color

2 - liglit green

S • pea soup

8 - liglit brown

1 1 - milky chocolate

14 - grayish

3 - moderately green

6 - greenish brown

9 - moderately brown

12 - tan

1 5 - otlier

Other: 0 - none

I - miniinat 2 - sliglit

3 - moderate 4 - substantial

-24-

LOON - KENDALL COUNTY

Date Total Depth Secchi Trans. Water Suspended Suspended Weeds Weeds Near
(Feet) (Inches) Color Sediment Algae at Site Shore

Site 123 1 2 3 123 123 123 123 123

05/08/91 19.5

18.5

13.5

82

103

82

4

4

4

0

0

0

0

0

0

0

0

0

1

1

1

05/09/91 20.0

18.0

12.0

138

138

122

1

1

1

0

0

0

0

0

0

0

0

0

0

0

1

06/03/91 20.5

18.5

12.0

246B 222B 138

1

1

1

0

0

0

0

0

0

0

0

0

0

0

2

06/12/91 19.5

19.0

13.5

190

157

96

2

2

2

0

0

0

0

0

0

0

0

0

1

1

1

06/17/91 20.0

18.0

12.0

180

132

102

1

1

1

0

0

0

0

0

0

0

0

0

0

1

2

07/10/91 20.0

18.0

12.0

108

84

84

2

2

2

0

0

0

1

1

1

0

0

0

0

0

1

07/17/91 20.0

18.0

11.0

84

84

60

2

2

2

0

0

0

1

1

1

0

0

0

0

0

1

07/24/91 20.0

18.0

12.0

84

72

60

2

2

2

0

0

0

1

1

1

0

0

0

0

0

1

08/05/91 20.0

18.0

12.5

66

60

48

2

2

2

0

0

0

1

1

1

0

0

0

0

0

1

09/03/91 20.0

18.0

12.0

72

72

72

2

2

2

0

0

0

0

0

1

0

0

0

0

0

1

09/16/91 20.0

17.0

11.0

96

84

72

1

1

2

0

0

0

0

0

1

0

0

0

0

0

1

10/22/91 18.0

18.0

11.5

96

108

96

2

2

2

0

0

0

0

0

1

0

0

0

0

0

0

Minimum 18.0 17.0 11.0 66 60 48
Maximum 20.5 19.0 13.5 246 222 138
Average 19.8 18.1 12.1 120 110 86
StdDev 0.6 0.5 0.8 57 46 26

Key

Color

1 •clear

2 • light green

3 • moderately green

4 - very green

5 - pea soup

6 • greenish brown

7 • brownish green

8 • light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

12 -tan

13 -yelowuh

14 - grayish

15 -other

Other:

0>none

1 - minimal

2 - slight

3 • moderate

4 • substantial

-25-

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0 0 0 0

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-27-

Dissolved Oxygen _ Teuperature

MENNO-HAVEN - BUREAU COUNTY

1991 SECCHi TRANSPARENCY
y[ NNO-HA V[ N. BUREAU COUNl Y

Date

Total Depth

Secchi Trans.

Water

(Feet)

(Inches)

Color

Site

1

2

3

1

2 3

1

2 :

3

05/11/91

6.0

3.0

2.5

43

36B

19

7

6

2

05/18/91

6.5

3.0

2.5

8

8

8

9

9

9

06/26/91

6.0

3.5

3.0

20

20

20

3

3

1

07/12/91

6.0

3.0

3.0

18W 20W 14

13

13

1

07/31/91

5.5

2.5

3.0

8

7

8

4

4

4

08/03/91

5.5

2.5

3.0

8

7

7

4

6

6

Minimum 5.5

2.5

2.5

8

7

7

Maximum 6.5

3.5

3.0

43

36

20

Average

5.9

2.9

2.8

18

16

13

Std Dev

0.4

0.4

0.3

14

11

6

Suspended

Suspended

Weeds

Weeds Near

Sediment

Algae

at Site

Shore

1 2 3

1 2 3

1 2 3

1 2 3

2 2 1

2 2 1

0 1 1

3 2 3

3 3 3

1 1 1

0 0 1

2 3 3

3 3 3

3 3 3

0 1 1

2 4 4

3 3 4

3 3 4

1 1 1

3 3 3

0 0 0

4 4 4

0 1 1

2 4 4

0 0 0

4 4 4

0 2 2

2 3 3

Key

Color

1 - clear

2 - light green

3 - moderately green

4 - very green

5 - pea soup

6 - greenish brown

7 - brownish green

8 - liglit brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

1 2 • tan

13 - yelowish

14 - grayish

1 5 - otlicr

Other:

0 - none

1 - minimal

2 - sliglit

3 - moderate

4 - substantial

-28-

PINE - LEE COUNTY

Date Total Depth Secchi Trans. Water Sus^nded Suspended Weeds Weeds Near
(Feet) (Inches) Color Sediment Algae at Site Shore

Site

1

2

3

1

2

3

1 2 3

1 2

3

1 2

: 3

1

2

3

1

2

3

05/15/91

9.0

6.5

7.0

58

69

48

6 6

6

1

1

1

0

0

0

0

0

0

0

0

0

06/04/91

14.0

6.0

6.5

20

20

20

10 10

10

4

4

4

0

0

0

0

0

0

1

0

0

06/25/91

9.5

4.5

4.0

20

21

22

4 4

4

1

1

1

4

4

4

0

0

0

0

0

0

07/12/91

12.0

6.0

6.0

16

18

24

5 5

5

1

1

1

3

3

3

0

0

0

1

1

1

07/23/91

9.0

6.5

6.5

30

26

28

6 6

6

2

2

2

3

3

3

0

0

0

0

0

0

08/15/91

12.5

6.0

5.5

41

38

38

13 13

13

2

2

2

1

1

1

0

0

1

1

1

1

10/11/91

12.0

6.5

6.0

24

24

28

9 9

9

4

4

4

1

1

1

0

0

0

1

1

1

10/18/91

11.0

7.0

6.0

30

28

24

10 10

10

4

4

4

2

2

2

0

0

0

0

0

0

Minimum 9.0

4.5

4.0

16

Maximuml4.0

7.0

7.0

58

Average 11.1

6.1

5.9

30

StdD^ 1.8

0.7

0.9

14

18 20
69 48
31 29
17 9

Key 1 -clear

Color 2-light8reen

3 • moderately greea

4-very green

3-peaaoup

6 - greeniah brown

7 • bfowniah green 10 -very brown

8 • li^ brown 11- milky chocolate

9 • moderately brown 12 -tan

13 -yelowiah

14 • grayifh
15-otlier

Other. 0-none

1 -minimal

2 -slight

3 -moderate

4 - substantial

SHABBONA - DeKALB COUNTY

1991 SECCHl TRANSPARENCY
SHABBONA. OCKAie C0UN1Y

Date Total Depth Secchi Trans. Water Suspended Suspended Weeds Weeds Near
(Feet) (Inches) Color Sediment AJgae at Site Shore

Site

1

2

3 1

2

3

1 2 3

1 2

3

1 2

3

1 2

3

1

2

3

05/08/91

35.0

20.0

15.5

43

48

48

7 7 7

1

1

1

0

0

0

0

0

0

0

0

1

06/12/91

36.5

18.5

17.0

56

51

6 6 6

1

1

1

0

0

0

0

0

0

2

2

3

07/17/91

35.5

17.5

12.5

70

54

42

2 2 2

0

0

0

1

1

1

0

0

0

0

1

2

10/09/91

35.0

19.0

15.0

32

24

36

7 7 6

1

1

1

0

0

1

0

0

1

1

0

1

Minimum 35.0 17.5 12.5 32 24 36

Maximiun 36.5 20.0 17.0 70 54 48

Average 35.5 18.8 15.0 50 44 42

StdDev 0.7 1.0 1.9 16 14 6

Key

1 - clear

4 - very green

7 - brownish green

10 - very brown

13 - yelowish

Color

2 - light green

5 • pea soup

8 - light brown

1 1 - milky chocolate

1 4 - grayish

3 - moderately green

6 - greenish brown

9 - moderately brown

12 -tan

15 - other

Other; 0 - none

1 - minimal

2 - slight

3 - moderate

4 - substantial

I I

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8 6 3 I

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8

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e o o o

f« f« ei «<•

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-31-

9 9 9 9

•X.. x,^ X,^ —

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e ^ ^

'»»* >«. •XiX

8 8 & S

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Lake Mean Surface

Dissolved Oxygen _ Tenperature

SINNISSIPPI BAYOU - WHITESIDE COUNTY

Date

Total Depth
(Feet)

Secchi Trans.
(Inches)

Water

Color

Suspended Suspended Weeds

Sediment Algae

at Site

Weeds Near
Shore

Site

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

04/28/91

4.5

4.5

2.5

14

14

14

3

3

3

0

0

0

2

2

2

0

0

0

0

0

0

05/27/91

4.5

5.0

2.5

14

11

11

4

4

4

0

1

2

2

2

2

0

0

1

0

0

1

06/09/91

4.5

5.0

2.5

14

14

14

3

3

3

0

0

1

2

2

2

0

0

2

0

0

1

06/23/91

4.0

4.5

2.0

10

10

10

4

4

4

0

0

1

3

3

3

0

1

3

0

0

2

07/14/91

4.5

5.0

2.5

12

12

12

4

4

4

0

0

0

3

3

3

0

1

3

0

0

2

07/28/91

4.0

5.0

2.5

10

10

10

4

4

4

0

0

0

3

3

3

0

1

4

0

0

2

08/11/91

4.0

5.0

2.5

10

10

10

4

4

4

1

1

1

3

3

3

0

1

4

0

0

2

08/31/91

4.0

4.5

2.0

10

10

10

4

4

4

0

0

2

3

3

3

0

2

4

1

1

3

09/15/91

4.0

4.5

2.5

10

10

8

4

4

6

2

2

3

4

4

4

0

3

4

0

0

3

09/29/91

4.5

4.5

3.0

12

12

12

4

4

4

1

0

1

3

3

3

0

2

4

0

0

3

10/13/91

4.0

4.5

2.0

16

14

14

4

4

4

1

1

1

3

3

3

0

1

4

0

0

2

10/27/91

4.0

4.5

2.0

14

14

12

3

3

3

2

2

3

3

3

3

0

1

3

0

0

2

Minimum 4.0

4.5

2.0

10

10

8

Maximum 4.5

5.0

3.0

16

14

14

Average 4.2

4.7

2.4

12

12

11

Std Dev

0.3

0.3

0.3

2

2

2

Key

Color

1 - clear

2 • light green

3 - moderately green

4 - very green

5 • pea soup

6 - greenish brown

7 - brownish green

8 • light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

12 -tan

13 • yelowish

14 - grayish

15 - other

Other:

0 -none

I • minimal

2 - sliglit

3 - moderate

4 • substantial

-33-

1991 VOLUNTEER LAKE MONITORING DATA FOR SINNISSIPPI BAYOU, WHITESIDE COUNTY

Map

S

Sample

Depth

Total

Code

i

Date

of

Suspended

t

Sample

Solids

e (MM/DD/YY)

(Feet)

(mg/L)

RPG

1

05/27/91

1

33 -

RPG

1

06/23/91

1

54

RPG

1

07/28/91

1

22

RPG

1

08/27/91

1

30

RPG

1

09/29/91

1

18

RPG

1

10/13/91

1

96

Site

1 Mean Surface

42

RPG

3

05/27/91

1

26

RPG

3

06/23/91

1

82

RPG

3

07/28/91

1

27

RPG

3

08/27/91

1

92

RPG

3

09/29/91

1

58

RPG

3

10/13/91

1

53

Site

3 Mean Surface

56

Date

Mean

05/27/91

30

Date

Mean

06/23/91

68

Date

Mean

07/28/91

25

Date

Mean

08/27/91

61

Date

Mean

09/29/91

38

Date

Mean

10/13/91

75

Lake

Mean

Surface

49

Volatile

Nitrate/

Ammonia/

Total

Suspended

Nitrite

Ammonium

Phosphomis

Solids

Nitrogen

Nitrogen

(mg/L)

(mg/L)

(mg/L)

(mg/L)

12

2.00

0.01

0.226

22

0.45

0.28

0.331

12

0.01

0.06

0.544

16

0.01

0.14

0.441

5

0.01

0.05

0.193

34

0.36

0.03

0.187

17

0.47

0.10

0.320

12

1.70

0.01

0.287

27

1.00

0.44

0.333

15

0.01

0.07

0.656

32

0.04

0.20

0.527

14

0.10

0.11

0.193

16

0.10

0.03

0.179

19

0.49

0.14

0.363

12

1.85

0.01

0.257

25

0.72

0.36

0.332

14

0.01

0.07

0.600

24

0.03

0.17

0.484

10

0.06

0.08

0.193

25

0.23

0.03

0.183

18

0.48

0.12

0.341

-34-

SUMMERSET - STEPHENSON COUNTY

Date Total Depth Secchi Trans. Water Suspended Suspended Weeds Weeds Near
(Feet) (Inches) Color Sediment Algae at Site Shore

Site

1

2 3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

3

1

2

06/05/91

27.0

25.0

12.0

60

72

36

4

6

7

1

2

3

2

3

3

0

0

0

1

1

1

06/12/91

27.0

25.0

24.0

66

66

44

3

3

3

0

0

0

2

2

2

0

0

0

0

2

2

06/28/91

26.0

26.0

15.0

72

60

48

2

2

2

0

0

0

0

0

0

0

0

0

1

1

1

07/09/91

30.0

22.0

14.0

72

48

36

2

2

2

0

0

0

0

0

0

0

1

1

2

2

2

07/23/91

28.0

27.0

26.0

60

54

48

2

2

2

0

0

0

0

0

0

1

1

1

2

2

2

07/31/91

25.0

20.0

14.0

48

38

40

2

2

2

0

0

0

0

0

0

0

0

0

2

2

2

08/08/91

34.0

25.0

15.0

42

30

27

2

2

2

1

1

1

0

0

0

0

0

0

2

2

2

08/13/91

25.0

25.0

15.0

46

32

30

2

2

2

0

0

0

0

0

0

0

0

0

2

2

2

Minimum

25.0

20.0

12.0

42

30

27

Maximum

34.0

27.0

26.0

72

72

48

Average

27.8

24.4

16.9

58

50

39

Std Dev

3.0

2.3

5.1

12

16

8

Key

Color

1 - clear

2 • light green

3 - moderately green

4 ■ very green

5 • pea soup

6 - greenish brown

7 - brownish green

8 • light brown

9 • moderately brown

10 -very brown

1 1 - milky chocolate

12 - ton

13 -yelowish

14 • grayish

15 - other

Other:

0-none

1 • minimal

2 • slight

3 - moderate

4 - substantial

-35-

SUNSET - LEE COUNTY

Date

Total Depth

Secchi Trans.

Water

Suspended

Suspended

Weeds

Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site

1

2

3

1 2

3

1

2 3

1

2

3

1

2 3

1

2

3

1

2

3

05/15/91

7.5

7.0

7.0

43

42

40

7

7

7

3

3

3

0

0

0

0

0

0

0

0

0

06/04/91

8.0

7.5

7.5

42

42

42

8

8

8

2

2

2

0

0

0

0

0

0

0

0

0

06/25/91

7.5

7.0

7.0

30

30

30

8

8

8

3

3

3

0

0

0

0

0

0

0

0

0

07/12/91

7.0

6.0

6.5

15

16

12

5

5

5

1

1

1

4

4

4

0

0

0

0

0

0

07/23/91

7.0

6.5

6.5

22

18

24

5

5

5

1

1

1

4

4

4

0

0

0

0

0

0

08/15/91

6.5

6.0

6.5

12

12

14

5

5

5

1

1

1

4

4

4

0

0

0

0

0

0

08/29/91

6.5

6.0

6.0

12

12

12

6

6

6

1

1

1

4

4

4

0

0

0

0

0

0

09/11/91

6.0

6.0

6.0

18

18

18

5

5

5

1

1

1

4

4

4

0

0

0

0

0

0

09/27/91

6.0

6.0

6.0

22

22

22

6

6

6

2

2

2

4

4

4

0

0

0

0

0

0

10/11/91

6.5

6.5

6.0

24

24

24

10

10

10

4

4

4

1

1

1

0

0

0

0

0

0

10/18/91

6.5

6.5

6.5

32

30

30

8

8

8

4

4

4

1

1

1

0

0

0

0

0

0

Minimum

6.0

6.0

6.0

12

12

12

Maximum

i 8.0

7.5

7.5

43

42

42

Average

6.8

6.5

6.5

25

24

24

Std Dev

0.6

0.5

0.5

11

11

10

Key

Color

1 - clear

2 - light green

3 - moderately green

4 - very green

5 - pea soup

6 - greenish brown

7 - brownish green

8 - light brown

9 - moderately brown

10 - very brown

1 1 - milky chocolate

1 2 - tan

13 - yelowish

1 4 - grayish

1 5 - other

Other:

0 - none

1 - minimal

2 - slight

3 - moderate

4 - substantial

-36-

WOODHAVEN - LEE COUNTY

Date

Total Depth

Secchi Trans.

Water

Suspended

Suspended

Weeds

Weeds Near

(Feet)

(Inches)

Color

Sediment

Algae

at Site

Shore

Site

1

2 3

1 2

3

1 :

! 3

1

2

3

1

2

3

1

2

3

1

2

3

05/15/91

13.0

13.0

4.0

102 96

48B

2

2

2

! 1

1

1

0

0

0

0

0

0

0

0

0

06/04/91

7.0

7.5

4.5

84B60

48W

8

8

8

1

1

1

0

0

0

0

2

2

2

2

3

06/25/91

9.5

6.5

7.5

48 54

46

7

7

7

2

2

2

2

2

2

1

3

2

2

3

3

07/12/91

11.0

4.5

6.5

48 48

52

2

2

2

1

1

1

1

1

1

0

0

1

1

1

1

07/23/91

12.0

8.0

6.0

48 42

42

7

8

8

2

3

3

1

1

1

0

0

0

0

0

0

08/15/91

7.0

10.0

7.5

38 30

46

8

8

8

3

3

3

1

1

1

0

0

1

2

1

2

08/29/91

12.0

7.0

7.5

36 36

36

2

2

2

1

1

1

2

2

2

0

0

1

1

1

2

09/11/91

11.0

6.0

6.0

24 24

24

6

6

6

2

2

2

3

3

3

0

0

0

0

1

2

10/11/91

11.0

7.0

4.0

36 42

36

2

2

2

1

1

1

1

1

1

0

0

2

0

1

2

10/18/91

11.0

6.5

3.5

32 30

36

2

2

2

1

1

1

3

3

3

2

2

2

2

2

2

Minimum 7.0 4.5 3.5 24 24 24
Maximum 13.0 13.0 7.5 102 96 52
Average 10.5 7.6 5.7 50 46 41
StdDev 2.0 2.4 1.6 25 21 8

Key

Color

1 - clear

2 • light green

3 • moderately green

4 - very green

5 • pea soup

6 • greenish brown

7 • brownish green

8 - light brown

9 - moderately brown

10 • very brown

11- milky chocolate

12 -tan

13 - yelowish
14 -grayish

15 -other

Other:

0-none

1 • minimal

2 - slight

3 - moderate

4 - substantial

-37-

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f-

50272-101

1. REPORT NO.

IEPA/WPC/92-llOb

2.

REPORT DOCUMENTATION
PAGE

4. Title and Subtitle

Volunteer Lake Monitoring, 1991
Volume II: Northwestern Illinois Region

7. Author(s)

Amy J. Burns

^ .Pertormipg Organization Name and Address

iTTinois Environmental Protection Agency
Division of Water Pollution Control and
Office of Community Relations
2200 Churchill Road, P.O. Box 19276
Springfield, IL 62794-9276

S(^nsor.ing Organisation Name anrl ^dress

TlTinois Environmental Protection Agency
Division of Water Pollution Control and
Office of Community Relations
2200 Churchill Road, P.O. Box 19276
Springfield, IL 62794-9276

15. Supplementary Notes

16. Abstract (Limit: 200 words)

This report is Vol . II of a series of 7 reports suiranarizing Illinois EPA's 1991
Illinois Volunteer Lake Monitoring Program (VLMP). It provides a summary of 1991 VLMP
lakes in Northwestern Illinois a program overview, volunteer participation, and a
ranking of lakes on a regional basis.

Thirty volunteers recorded total depth, Secchi disc transparency, and field observations
for 20 lakes in Northwestern Illinois between May and October, 1991. Average transparencie
ranged from 12-156 inches. Volunteer water quality samples were collected at 3 lakes once
every month from May thru October and ambient lake data, collected by lEPA staff, is
presented for 3 lakes.

3. Recipient's Accession No

5. Report Date

July, 1992

6.

8. Performing Organization Rept. No

IEPA/WPC/92-llOb

10. Project/Task/Work Unit No

11. Contract(C) or Grant(G) No.

(C)

(G)

13. Type of Report & Period Covered

Annual - 1991

14.

Trophic Level
Water Quality

17. Document Analysis a. Descriptors

Lake

Citizen Participation
Monitoring
Volunteers

b. Identifiers/Open-Ended Terms

Illinois Lakes
Volunteer Lake Monitoring
Secchi Disc Transparency

c. COSATI Field/Group

18. Availability Statement

Released unlimited, available from National
Technical Information Service

19. Security Class (This Report)

Unclassified

20. Security Class (This Page)

Unclassified

21. No. of Pages

37

22. Price

(See ANSI-Z39.18)

See fnstructions on Reverse

OPTIONAL FORM 272 (4-77)
(Formerly NTIS-35)
Department of Commerce

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