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Monitoring at the New London Disposal Site 
1992-1998 
Volume | 


Disposal Area 
Monitoring System 
DAMOS 


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DISPOSAL AREA MONITORING SYSTEM 


Contribution 128 
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; Form approved 
REPORT DOCUMENTATION PAGE OMB Ne O02 O1RE 


Public reporting concern for the collection of information is estimated to avelare 1 hour per persons including the time for reviewing 
instructions, searching existing data sources, gathering and measuring data needed and correcting and reviewing the collection of 


information. Send comments regarding this burden estimate or any other aspect of this collection of information includin SURGE SHOns 
efferson 


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1. AGENCY USE ONLY (LEAVE BLANK) 2. REPORT DATE 3. REPORT TYPE AND 
January 2001 DATES Final Report 


4. TITLE AND SUBTITLE Monitoring at the New London Disposal Site 1992-1998 Volume I 6. FUNDING NUMBERS 
6. AUTHORS Suis F 5 
Science Applications International Corporation 

7. PERFROMING ORGANIZATION NAME(S) AND ADDRESS(ES) 8. PERFORMING 
Science Applications International Corporation ORGANIZATION REPORT 
221 Third Street 
Newport, RI 02840 SAIC No. 515 

9. SPONSORING/MONITORING AGENCY NAMES(S) AND ADDRESS(ES) 10. SPONSORING/ 
US Army Corps of Engineers-New England District MONITORING AGENCY 
696 Virginia Rd DAMOS Contribution 
Concord, MA 01742-2751 Number 128 


11. SUPPLEMENTARY NOTES Available from : DAMOS PROGRAM MANAGER Regulatory Branch, USACE-NAE 
696 Virginia Rd 


oncord MA _01742- 


12a. DISTRIBUTION/AVAIABILTY STATEMENT 12b. DISTRIBUTION CODE 
Approved for public release; distribution unlimited 


13. ABSTRACT 


Science Applications International Corporation (SAIC) conducted monitoring surveys of the New London Disposal Site (NLDS) in August, 1992; August, 1995; 
September, 1997; and July, 1998, as part of the Disposal Area Monitoring System (DAMOS) Program. Field operations in each survey year included data 
collection of one or more of the following: precisionbathymetric surveys, Remote Ecological Monitoring of the Seafloor (REMOTS) sediment-profile surveys, and 
surface and near-bottom dissolved oxygen determinations. Since its inception in 1977, the Disposal Area Monitoring System (DAMOS) Program has investigated 
dredging and dredged material disposal practices in an effort to minimize adverse physical, chemical, and biological impacts. DAMOS utilizes a flexible, tiered 
management approach centered around comprehensive environmental monitoring to oversee the placement of sediments at nine open water disposal sites along the 
coast of New England. Active disposal sites are surveyed on a regular basis to ensure the effects of dredged material disposition on the benthic habitat are localized 
and temporary. There has been an active dredged material disposal site near New London since at least 1955. DAMOS monitoring of the New London Disposal 
Site started in 1977 when the program was established. In 1996, the boundary of the New London Disposal Site shown in DAMOS graphics was shifted in 
accordance with the Final Programmatic Environmental Impact Statement, resulting in a 0.2 nmi northerly shift of the disposal site. The new, northern region was 
surveyed in 1997. 


The New London disposal site has been used for on-going disposal throughout the 1990’s, including unconfined disposal of suitable sediments, and capped disposal 
of unsuitable sediments. This report, Volume I, summarizes the disposal and monitoring activities conducted from the 1991-1992 dredging season through 
monitoring in July, 1998. This information is presented as a single report to provide a clear, concise picture of use of the New London Disposal Site during this 
time-frame and to include important monitoring information related to the dredged material mounds. Additional disposal and monitoring information related to the 
U.S. Navy Seawolf Mound during this time period are to be presented in Volume II. 


During the 1991-1992 disposal season, the NLDS received a total barge volume of 104,200 m3 of dredged material generated from four separate projects in the 
eastern Long Island Sound region. Disposal resulted in creation of two disposal mounds, the Dow/Stonington (D/S) mound, consisting of unsuitable dredged 
material (Dow and Stonington sediments) and suitable cap material (Dow sediments), and the NL-91 mound immediately north of the D/S mound. 


Bathymetric surveys and REMOTS data, which were fully developed using pre- and post-capbathymetric survey data analyzed in 1994-1995, showed that due to 
errors in navigation, while some cap material covered the D/S mound, most of the cap material was deposited approximately 250 m east of the mound. Following 
the misplacement of some of the cap material, additional cap material has been deposited at the site as it becomes available, to steadily increase cap thickness over 
the mound. REMOTS surveys of the D/S mound conducted in 1992, 1995, 1997, and 1998, showed no adverse impactstrong signs of benthic community 
recovery and the continued presence of a stable benthic community, minimizing concem about potential adverse effects. During the 1994-1995 dredging season, 
two new capped mounds were created at the NLDS, including the U.S. Coast Guard Academy (USCGA) mound, and New London 1994 (NL-94) mound. 
Although monitoring in August, 1995, indicated the NLDS area was experiencing low oxygen bottom waters, it appeared to be part of a regional, seasondlypoxia 
event that is unrelated to dredged material disposal. The benthic community at the newly formed disposal mounds was comparable to the reference areas. 
Additional disposal activities conducted at the New London Disposal Site during this time frame consist of creation of thSeawolf mound with sediments from the 
New London Naval Submarine Base, the Thames River navigational channel, and two smaller dredging projects. Monitoring of this mound conducted in 1997 and 
1998 is discussed in Volume II. 


14. SUBECT TERMS 15.NUMBER OF PAGES 


New London Disposal Site oR OD 


17. SECURITY CLASSIFICATION OF REPORT 18. SECURITY CLASSIFICATION }19. SECURITY CLASSIFICATION ]20.LIMITATION OF 
UNCLASSIFIED OF THIS PAGE ABSTRACT 


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MONITORING AT THE 
NEW LONDON DISPOSAL SITE 
1992-1998 
VOLUME I 


CONTRIBUTION #128 


January 2001 


Report No. 
SAIC-515 


Submitted to: 


Regulatory Branch 
New England District 
U.S. Army Corps of Engineers 
696 Virginia Road 
Concord, MA 01742-2751 


Submitted by: 
Science Applications International Corporation 
Admiral’s Gate 
221 Third Street, 
Newport, RI 02840 
(401) 847-4210 


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TABLE OF CONTENTS 


Page 

IST OR MAB IEE Senet ele wel tees wc camila cg caicincie oo aaa Motte EN TEM RAN eae Vv 
METS TOES EGR Sooo ge sass accra cai c ate la CES Tas ETE Ae cic ein (cine ofc Meiofherond sieiscie oe Soc Vil 
EOE COMIVESWOMIMAIR YI renee ee eee en beens toes chu yaaiuucan aenaeeesene hoo ce de eale canoes X11 
(PORe IN ROD WEDIONis:<satets ca teerel reeeeenrshotny seas nieeinces a Sham een gE. iN) 1 
islerres BackSroundts.ye saere: Meee ae neat em emer: Neer ola nae Me te Mi slalaatelctnen saiciie te 1 

1225 DredgedyMaterialDisposaliMounds! ie 0 rr ho. ocsoneeeee ees eee dad oe ccese 6 

1.2.1 Dow/Stonington and 1991-1992 Disposal Activity .....................55 6 

122-2 WSCGAtand NE-94*Disposal*Mounds 2.2 esc se. cece eos coece see se cence 9 

ied iets Monitoring Activity crestassnteescensaret see eset ee ee rete Pete ee tas ae tee dee os 10 

1.351 August 1992-MonitonmnetSurveye 1 ce ene cee nes eee 10 

eS eZ Ausust 1995) Monitoring * Survey >... ce--ccensences sss cess ceeeses 11 

1.3.3 Septembers1997/ Monitoring*Survicy -..--e.-te erate cecessecesn cece 12 

1.3.4 Julyst99S MonitorimoeSurveyeerses-sacceseeeerees cose seen 12 

1.3.5 NEDSiNorthermmRegione ees. ta. 2. see Peet acne cee aoe 13 

CAO mare VUE HODS» sso sndasdncsscedsscaseeress ceaenee een et Se se ee ht 22 EE Ee et Os eH 14 
Dals.>iBathymetryvand Navigation tests 10 Say se ee NEA RO ceeds 14 

Drslesl 1992 and 995) SurveyPActivityseess.- meee cee seco: 16 

BMP LOO Trandal99 SeSurviey VACVity ens s..2.22-cchaeee eos ces cose cee 16 

213 Bathymetric’ Data Collections... 2e: 29 sees eee sce oes sees I) 

2.1.4 Bathymetric! DatavProcessingeies.........cc0seeet es <ccuce seca ence 21 

22 Ss REMOMS2 Sediment Profile Photosraphy ses... 04-4. 5-2e desks see eee 22 

Dre l| NL-91 and the Dow/Stonington (D/S) Mound Complex...... 28 

Did WSEGAGMoundiss a snes rete sa SED, WIRE Menta 28 

2223 INDG-94 sMoundascsesctrstvcnns sss Rite MELONI: or MARS hs 28 

2.2.4 IN@nthermiRe gion ie eee aes asain: aactiae ein sateen sais 33 

Dood) INE DS ReferencerATcas serie cance cancer er aanen saecucnsteds 35 

DPS DiSsolved(@xy cen’ Sampling ea crc cn tee acetic omen renee ser ec ae ses eee iaes 40 

SAO pee SWI exert anct ieee au eee ca kuna ek AIOE Pad eB. Bele oo 44 
31.) D/Sand NEE-91- Disposal Moumds)jucsyssecinsccse terres esos s foe vec nsees 44 

So dbedl Bathiy ine try ectosteces Myton tag Be Mane ene Ne eh 0 ORM wo 44 

Sele REMOTS® Sediment-Profile Photography ...................... 48 

SallePo il AUISUS HOOD SUIVCN et Renee ee on edie en ueniatan ek 55 

Dolla PUISUSHMS ISIS UI Cyrene cece eercn ech nee. 67 

SeleeS Septembers | OO/eSuivieyeeecere sere ee meee ere eeene 76 


4.0 


5.0 


6.0 


3.1.2.4 July PISO SIS URVEVERS Ec cccsoscc cece cate ees 82 


Sales August 1992 Dissolved Oxygen Measurements................. 90 

3.2. MSCGA Disposal Mounderstecgeut ic saccunes cnee ean ace seeee Re see ce eeeRC ERE 90 
8) o745 Bathy me they 22. osceisr cag tltenes sone ons mereeen eee en amen eens 90 

Seed REMOTS® Sediment-Profile Photography ...................... 90 
3:3).«+++NIL-94+ Disposal Mounds cetetern ies cic seis aeeehe en memes ame tte enema nie seem eran 98 
Sosiell Bathy me try ini sae asics tine tect wel se ctuuct emcee ganas seeee enerraener 98 

3532 REMOTS® Sediment-Profile Photography ...................... 98 
JoSo/Aadh August 1995 Survey 222. - shes. eee ec eee eee ee 98 

Soeur September 99/eSunveyere cress teeeneeeee eee eeeere ree 106 

3:4. NorthemoResion . 55. eWeek sak ets cece tes cccan ee ee ea ee ey me eee 110 
3.4.1 1997 Master Bathymetric Survey -.aecreesaee see eteee 110 

3.4.2 NEDS NorthernResionycc2et test focee een neon cee eee 115 
3.4.2.1 Bathymetry).. tr¢:-ccavocsere ae vareele ot okte th cewoseoceeeee JUILS) 

3.4.2.2 REMOTS® Sediment-Profile Photography............ 115 

3.5 .NIL-92 Disposal Mound... ..0..6.5.:.:52.o8 eA. meaatte A= ood cou 122 
3:6 . NLDS Reference Areas; mtrcstewt QOS. sreceas Rone sce senate eton een eee tee 122 
3.6.1 Augusiil92: Sutvey Boas. sascaqyed cn .0c. eR Me ace eunene 122 

3-6-2 August, 1995, Surveyit. ssedasntsaees sc .cteo sue e tween osee- meee 125 

32053 September 1997 -Surviey pects 2a tea sassse Bee ee aeeeeeeee eee 128 

3.6.4 July 1998) Survey pxceten 5 RETO 3. cetec ee Ramsden cceneceeaee 129 
DISCUSSION ..ochce esis betec oi escsts pheeclooe yee ueeceasysea ease ussee eee eee eee eee 133 
4.1 Topography and Evidence of Historical Disposal at the NLDS............. 133 
4.2 Biological Response to Disposal at the NLDS ........................ sce ee eee 134 
4.2.1 Evidence of Low Dissolved Oxygen ...................2.---+++ 136 

4.3 Capping of the Dow/Stonington Disposal Mound.........................0555 138 
4.3.1 Benthic-Recolonizationsse-eese soca tebe eee 138 

A322. Sediment Distribution and Characterization................... 139 

4.3. WSCGAIMOound watnasnase vscadh sas. byet: OT. coccite ene fe Miekeemcesedaees 141 
4.5  NL-94 Mound)... o.oo. 5 3c. cece Berea REVO ON «ores tic see ane ets cee cen eee 144 
4.6. Northern Regions. .2.0 5.22. caco 3 Pee BS I as incl ee cera ee reese 146 
CONCLUSIONS AND RECOMMENDATIONS ...................2 sce eeeeeeee eens 148 
5.1 “Overview of Monitoring sis. 2s. vasecsecea cae scene acces ee ee 148 
5.2 Dow/Stonington and NL-91 Mound........................2..200 wel oka Nae - 149 
5.3) JUS@GA Mound 2 cece yatta eee tan ener ec ae ee 150 
5.4. NL-94 Mound «02.2 ck see ete Seen Ree Sears RR Oe Sng 151 
5.5... Northerm Region. 0... cae eas ana: 5 eer eee ices Ue eT Mares arene 151 
5:6 Recommendations <i .tt 2n4 eg eee ee oe osc est oteri nee enecrasie 151 
REFERENCES 030.25 oo ocadsgna jeer Slee Taue aula Bee oe oe Oe ER eee ee 153 


ii 


APPENDICES 


INDEX 


| 4 s ae pekews pi ne ee ToT. riaetnaah 
— a Z } iu } Bocrviwery:: ay a eh A eave one ‘i Hee Be a 
a. i _ REMOTS® Seanine Pre phy 

| a2 - 
=a) | os. ow i heal 
Vy ee REMOTS?S Sede ee ay 


. ah i wen 


. Sa , Mathie Rages Mee eet Oe ye jWheis renee y/ 
P 4 ee aera 2 Vi c ee * 
~~ i pee Pad 
ey ever 
ee ee hat ; OTS? So Stile Ph 
7 ‘i vs Nie Rees fing 44 

_ , - haa iy i _ Agnes F992, Srinvey pai : 
ee eae AOR Aint N85 Supteey co. 
ne 2 (963 _) . Sepeembar 1997 Survey 1 ie 
aft = Sora! on 3.6 a Ck ee ee ay 


: : ‘ died Gadi nhs ‘ rine | SCiannse Ras ewe 
a ‘4d Tapogs ue cama Risenetaa DE 
a i Us a. Biotopinal, Tempore tn, bi pan Ni 


prong, asldaune 


PORIWE 0 oe Cale eres 


Table 2-1) 


Table 2-2. 


Table 2-3. 
Table 2-4. 


Table 2-5. 


Table 2-6. 
Table 2-7. 


Table 2-8. 


Table 2-9. 


Table 3-1. 


Table 3-2. 


Table 3-3. 


Table 3-4. 


Table 3-5. 


LIST OF TABLES 


Page 
Summary of Bathymetry and REMOTS® Surveys conducted at NLDS 
1OGDE TOO Sie tes Verena hs Secret) Wee oun eee eok a MeN eee eR cae diate dbroeiws 15 
Summary of Survey Equipment Employed by SAIC for Bathymetric 
SurveyscateNE DS pet see ARES RII NPIS PUR, wo acesle ale eile LW, 
GraimySize\ScalesbionjSediments beeen aaetaeteae see eee eee seer eerste 25 
Calculation of REMOTS® Organism Sediment Index Value................... Pay 
Coordinates of REMOTS® Sampling Stations at the D/S Mound over the 
perlodsl!992-1998 wa) aise. Deenelee ey tae Aes. eke. Ssh Sack Cen Ms) 
USCGA Mound REMOTS® Stations Coordinates...............2..ececeeeee eee 34 
NL-94 Mound REMOTS® Stations Coordinates...............2.2:.ececeeeeeeees 35 


New London Disposal Site Northern Region REMOTS® Stations 
Coordinates i ees we PA ee ee ona ety DOTS SG 36 


NLDS Reference Areas REMOTS® Stations Coordinates....................-- 43 


NL-91 and D/S Mound Complex REMOTS® Sediment-Profile 
Photography Results Summary for the 1992 Survey ........................0255 56 


NL-91 and D/S Mound Complex REMOTS® Sediment-Profile 
Photography Results Summary for the 1995 Survey .........................05. 68 


NL-91 and D/S Mound Complex REMOTS® Sediment-Profile 
Photography Results Summary for the 1997 Survey .........................045 Wd 


NL-91 and D/S Mound Complex REMOTS®Sediment-Profile 
Photography Results Summary for the 1997 and 1998 Surveys............... 86 


USCGA REMOTS® Sediment-Profile Photography Results Summary 
FOTGthE MOSSES uv eN ee eee as Pee eee caste tee da eect one el avocutstlsidersaoece 95 


Table 3-6. 


Table 3-7. 


Table 3-8. 


Table 3-9. 


Tabie 3-10. 


Table 3-11. 


Table 3-12. 


LIST OF TABLES (continued) 


NL-94 REMOTS® Sediment-Profile Photography Results Summary 


Foye Wot MSIE) SUIQKENY coa0gc500259003 98 pdosabos cuocob cocoa nsogoocosacusacoascane. 


NL-94 Disposal Mound REMOTS® Sediment-Profile Photography 


Results Summary for the 1997 Survey ..............20.ssseeeeee scene eee ees 


NLDS Northern Region REMOTS® Sediment-Profile Photography 


Results Summary for the 1997 Survey .............-.seeseeeees ee ee eee ees 


NLDS Reference Area REMOTS® Sediment-Profile Photography 


Results Summary for the 1992 Survey ...............:.2seseeeseee eee ee ees 


NLDS Reference Area REMOTS® Sediment-Profile Photography 


Results Summary for the 1995 Survey ...............:.s esses eceee scene ees 


NLDS Reference Area REMOTS® Sediment-Profile Photography 


Results Summary for the 1997 Survey .............-::e:eeeeeeeeeeeee nsec ees 


NLDS Reference Area REMOTS® Sediment-Profile Photography 


Results Summary for 1997 and 1998 Surveys............-.-.0::sseeeeeeee 


Vi 


Figure 1 -1. 
Figure 1-2. 
igune—3) 
Figure 2-1. 


Figure 2-2. 


Figure 2-3. 


Figure 2-4A. 
Figure 2-4B. 
Figure 2-5. 
Figure 2-6. 


Figure 2-7. 


LIST OF FIGURES 


Page 
LocationiofitheiNew Wondon’Disposal’Site 2 takes. este cscs esac ec aa 2 
Bathymetric chart of New London Disposal Site .....................cceeeeee eee 5) 
Timeline of disposal and monitoring activity...................ccee eee ee eee ee ee ees V 
Location of the 1992 and 1995 bathymetric survey area over NLDS, 
relative to the disposal site boundaries, analysis areas for individual 
mounds, and the New York and Connecticut State Line (NAD 27).......... 18 


Location of the 1997 master bathymetric survey area over NLDS, 
relative to the disposal site boundaries and the New York and Connecticut 
Statevleines (NAD SS) yee ae teh HATE BD EE a 20 


Schematic diagram of Benthos, Inc. Model 3731 REMOTS® 
sediment-profile camera and sequence of operation on deployment.......... 23 


Distribution of the 1992 REMOTS® sediment-profile photography stations 
(41) over the NL-91 and D/S mound complex, relative to the DAMOS 
disposal site boundary and the U.S. Navy submarine corridor................ 30 


Distribution of 1995, 1997, and 1998 REMOTS® sediment-profile 
photography stations (13) over the NL-91 and D/S mound complex, 
relative to disposal site boundary and the U.S. Navy submarine corridor...31 


Distribution of 1995 REMOTS® sediment-profile photography stations 
(13) over the USCGA mound, relative to the detectable margins of the 
mounds: se 4.9 eee lowah Bo. esete eee Be SA SEMIS. fo ocd ac ees Sy 


Distribution of 1995 and 1997 REMOTS® sediment-profile photography 
stations (13) over the NL-94 mound, relative to the detectable margins 
olstheimounde age hem We, SSRI) Oh) Fe SEUSS Sh RARE BeraBtarsctot in 50/0 Shy 


Distribution of 1997 REMOTS® sediment-profile photography stations 


(11) over the Northern Region, relative to the FPEIS disposal site 
boundary and historic disposal mounds ......................ceceeeeee eee eee eee 38 


vii 


Figure 2-8. 


Figure 2-9. 


Figure 3-1. 


Figure 3-2. 


Figure 3-3. 


Figure 3-4. 


Figure 3-5. 


Figure 3-6. 


Figure 3-7. 


Figure 3-8. 


LIST OF FIGURES (continued) 
Page 


Location of the NLDS reference areas and distribution 1992 reference 
area REMOTS® sediment-profile photography stations (39), relative to the 
NLDS site boundaries and New York-Connecticut State Line ................ 39 


Locations selected for water column (CTD) profiles, as well as near surface 
and near bottom water samples for dissolved oxygen concentrations during 
therAugustl992siieldioperations, 5: s-eetes ests teas tesa crac tere siete 41 


Bathymetric contour plot of the 1600 m x 1600 m survey area over the New 
London Disposal Site, August 1992. A 0.25 m contour interval shows 
current/and!relic disposal!mounds' se5 sist eet. ae. nee soe eet total ctor ero toate 45 


Bathymetric contour plot of depth differences between the June 1991 and 
August 1992 surveys in the vicinity of the Dow/Stonington mound, complete 
with plotted positions of the 1991-1992 disposal buoys, 0.1 m contour 
interval), depth im Meters eM es SA I ie eee aae toes «cols eles else 46 


Bathymetric contour plot of the 940 m x 840 m survey conducted at the 
New London Disposal Site by Ocean Surveys Inc., in December 1991, 0.5 
MMCONtOUPMNtERVAL ISS LINE RL Ee MOEA OE SP LEE MIEELY oer ola to reloleevet 47 


Bathymetric contour plot of the June 1991 survey conducted by SAIC, 
regridded to a 500 m X 670 m analysis area, 0.5 m contour interval, depth 
in MEtEES VYRVYE ocd SU. DOD IBIS Se EROS OF SIRS oo ccsivace ctor 49 


Bathymetric contour plot of the depth differences between the SAIC June 
1991 and OSI December 1991 surveys showing accumulation of dredged 
material at the precap stage of development, 0.2 m contour interval......... 50 


Bathymetric contour plot of the August 1992 survey conducted by SAIC, 
regridded to a 500 m X 670 m analysis area, 0.5 m contour interval, depth 
TTACLERS 3 ses seed axedoo sda ard eneetin ah ga ke 1 Me ato: Souk 


Bathymetric contour plot of the depth differences between the SAIC 
August 1992 and OSI December 1991 surveys showing accumulation of 


CDM at the postcap stage of development, 0.2 m contour interval .......... 52, 


Depth difference comparison displaying the sediment deposited during the 
1991-92 disposal! SUTVEY acc.) betes tee tack eects einemee ee econ eee eee pectenee 53 


Vill 


Figure 3-9, 


Figure 3-10. 


Figure 3-11. 


Figure 3-12. 


Figure 3-13. 


Figure 3-14. 


Figure 3-15. 


Figure 3-16. 


Figure 3-17. 


Figure 3-18. 


Figure 3-19. 


LIST OF FIGURES (continued) 
Page 


Bathymetric contour plot of the depth difference between the SAIC 

August 1992 and SAIC June 1991 surveys showing total accumulation of 
dredged material within the 500 m X 670 m analysis area, 0.2 m contour 
TINGE RV alle eerste ene etn rao man a the Nea Mir ay mere dR Nuh ltl 54 


Distribution map of surface sediment type over fresh and/or historic 
dredged material in the vicinity of the new NL-91 and D/S mound 
COMplexqawNED Sew BAF ASE I ee nn USE arti e 57 


Contour lines based on sediment stratigraphy as detected with REMOTS® 
sediment-profilesphotograplhyss: eye. tee eon eee eae eee ae ee ea eeie cosine eee 58 


REMOTS® photograph of Station 200S depicting a sand layer over fresh 
dredgedimatenal lane a eceesae: 3c bos puonGugpoUUoDgadapb.scseouse bsoenoc a OF Sy) 


REMOTS® photograph of Station 300SE depicting a layer of biologically 
reworked dredged material over fresh dredged material ....................... 60 


Spatial distribution of the major modal grain size for the 1992 REMOTS® 
sediment-profile photography stations over the NL-91 and D/S mound 
COMPLE Ke item ed AEN corey Male peters apmuternnet ORE NC BREE SC IE wes os 61 


REMOTS® photograph of Station 400S depicting a layer of pebble and 
Shellfoverreworkedidredgedimatenial es-eseeae corres eee ene eee: 63 


Spatial distribution of Redox Potential Discontinuity depths for the 1992 
REMOTS® stations on the disposal mound....................0ecccceeeceeeeeeees 64 


Spatial distribution map of successional stage status for the NL-91 and 
DiSmmound complex, 17. yawes winery SUE wets enn. Daten ok eae 65 


REMOTS® photograph of Station 600SE depicting a healthy Stage II 
community consisting of the tube-dwelling amphipod Ampelisca sp. 
necolonizingsetreshydred gedjmateriall Pereeere ees aha Nis ee ee 66 


Distribution map of Organism Sediment Index (OSI) values over the 
NL-91 and D/S mound complex as detected in the August 1992 REMOTS® 
sediment-protile) photography ssunveyias.cene we sa. Rees Wedd eee. on. 2. - 69 


Figure 3-20. 
Figure 3-21. 


Figure 3-22. 


Figure 3-23. 
Figure sage 
Figure 3-25. 
Figure 3-26. 
Figure 3-27. 
Figure 3-28. 


Figure 3-29. 


LIST OF FIGURES (continued) 
Page 


Mean dredged material thickness at 1995 REMOTS® sediment-profile 
photography stations over the NL-91 and D/S mound complex, relative to 
theyAugusHHll992idetectablesmancinsys-ces aes eee ne receta sees eee 70 


REMOTS® photographs of Station 200S depicting a layer of pebble and 
shell\oversreworked| dredgedimatertaliysaas athe a ceee eee eee eee i 


Spatial distribution of mean redox potential discontinuity depths over the 
NL-91 and D/S mound complex as detected by the 1995 REMOTS® 
sediment-profile photography survey, relative to the 1992 detectable 

Margins, of; the pmMOunG 4. sserssissasNceset AML St eles pps eed Ee ee 73 


REMOTS photographs showing Stage II on Stage III at (A) CTR and 
Stage I on III at (B) 200N on the D/S Mound .........................ceeeee eee 74 


Spatial distribution map of successional stage status for the August 1995 
REMOTS® sediment-profile photography stations occupied over the 

NL-91 and D/S mound complex, relative to the detectable margins of the 
MOUs 9223 WHELs CSOSA Seay OTR hes tna tay ae Pepi Hace nel on, DE, meni 75 


1997 REMOTS® images from Stations 200E (A) and 200W (B) depicting 
dredged material layering and medium-grained sand in the surface layer, 
respectively a.yiin:agola WN CGR Je, deme eenintepelis Sa tee ME le oly ed mam 78 


1997 REMOTS® images collected at the NL-91 and D/S mound compiex 
Stations 100S (A) and 200S (B) displaying a surface layer of pebbles over 
reworked dredged material (9.09). ss ere ee eee cao ier os 79 


Distribution map of mean RPD (red) and median OSI (blue) values 
calculated for the 1997 survey over the NL-91 and D/S mound complex, 
relative tothe: 1992 disposal mound! footprint 3-445 saseseee ese eect 80 


Distribution map of successional stage calculated for the 1997 survey over 
the NL-91 and D/S mound complex, relative to the 1992 disposal mound 
LOOUPLINE cys2reqonck AQUI. Trap emb eee. OLN eter diane ee ne errs anaes Aeneas pate aie 81 


Evidence of recently disposed capping dredged material (CDM) over the 
NE-91 and, D/S;mound complexe erase react eee er eee eee eee re eee. eee 83 


' Figure 3-30. 


Figure 3-31. 


Figure 3-32. 


Figure 3-33. 


Figure 3-34. 


Figure 3-35. 


Figure 3-36. 
Figure 3-37. 
Figure 3-38. 
Figure 3-39. 


Figure 3-40. 


LIST OF FIGURES (continued) 
Page 


CDM disposal locations and projected footprint of new dredged material 
on the seafloor vs. depth of new material at REMOTS® stations over the 
IN-Silvand: D/Ssmoundicomplex says. rasebete. ete ene eae. cue naan se gene 84 


REMOTS® photograph of Station 200S depicting a layer of pebble and 
shellvoverneworkedidredsedimaterial ra. -ceces-eecase eee ee neenceen cence 87 


Distribution map of mean RPD (red) and median OSI (blue) values 
calculated for the 1998 survey over the NL-91 and D/S mound complex, 
relative to the 1992 disposal mound footprint and the predicted footprint of 
new material deposited during the 1997-98 disposal season ................... 88 


Distribution map of successional stage calculated for the 1998 survey over 
the NL-91 and D/S mound complex, relative to the 1992 disposal mound 
footprint and the predicted footprint of new material deposited during the 
ISOF-OSidisposalsseasons ees. so asee Seca sees eee. NactaaeA Adc .8 SEEN. 89 


Bathymetric chart of the 1600 m x 1600 m survey area, August 1995 
LESUICS OF SeMa CONLOUMAIMUCTAV Aly. wane. eernes eee eee te eee ean Ee eee ee 91 


Depth difference plot displaying the location of the disposal mounds 
created since the August 1992 survey (USCGA, NL-94, and NL-92) 
relative toyiStoricmisposal mounds ane ee eee eee eee eee 92 


USCGA mound, depth difference from August 1992 to August 1995, 
OMAemkContourminte eval HI SSL SIR FP aN Renee, 08 Lee We, A 93 


Distribution map of mean RPD and median OSI values calculated for 
theslS9sysunvevrovertheiWSCGA Mound eye. sesseeceee estes eee nice 96 


Distribution map of successional stage calculated for the 1995 survey 
overthe WS CGAIM ound: Wee ARG SN Ps TONES Lose ea ee SAS OF) 


NL-94 mound, depth difference from August 1992 to August 1995, 
OFZ smc OMtOUTH IML Walbs saa eastractact tarda desl deletes tee As ease vole dc ace dae on 99 


REMOTS® images obtained from NL-94 Station 15ONW (A) and 1 


50SE (B) depicting ambient sediment and reworked historic dredged 
IMATE HIAlS TESPSCLEVEL YA ais muerte cle ck eetn nie, ne meoninls, SACOM OAL ANCIRINS, 4 


xi 


Figure 3-41. 


Figure 3-42. 


Figure 3-43. 


Figure 3-44. 


Figure 3-45. 


Figure 3-46. 


Figure 3-47. 


Figure 3-48. 


Figure 3-49. 


Figure 3-50. 
Figure 3-51. 
Figure 3-52. 


Figure 3-53. 


Figure 3-54. 


LIST OF FIGURES (continued) 
Page 


Mean dredged material thickness at the 1995 REMOTS® sediment-profile 


photography stations over the NL-94 mound....................eseseeeeeeeee es 103 
Distribution map of mean RPD and median OSI values calculated for the 
1995 survey over the NL-94 Mound ................... cece cee ece scence eee seh 104 
Distribution map of successional stage calculated for the 1997 survey 
overithie INI294) Mouma ie sig 10 Seer ie ek Tals ACS, SRN Aa 105 


Interpretive map and example image (100NW) showing stations over the NL- 
94 mound displaying ambient sediments in 1995 which had received fresh 


dredged material during the 1996-97 disposal season.......................55 108 
REMOTS® images obtained from NL-94 Station 150SE (A), SONW 

(B), and 50S (C) depicting shell armoring........................cceeeee eee ee es 109 
Distribution map of mean RPD and median OSI values calculated for the 
1.997 ‘surveysover the NIZ-94 Mounds: 35-2eeeeeeeeseeeenee eee eate-ea eee 111 
Distribution map of successional stage calculated for the 1997 survey 

over. the INL-94, Motimdys! ies sie beet gs Cs Wyeth gee ok Eee nel 112 
Bathymetric chart of New London Disposal Site ....................:.0eee0ees 113 
Three-dimensional view of the bathymetry of NLDS (vertical 

exaggeration, 37/25) Aeh sana dee eee eee ee eeaeeee er eceer ec eeen 114 


Depth difference between the 1986 and 1997 master bathymetric surveys 117 
September 1997 bathymetry of the Northern Region .......................55 
Distribution of RPD and OSI values over the Northern region of NLDS - 120 


Distribution of successional stage assemblages over the Northern region 


(0) (16) DS ee ne Re EMER ER HOMERS aE Wiricvogdue asoaconmecastascanuenouaaosan 121 
NL-92 mound, depth difference from August 1992 to August 1995, 
O} 2m contourntenvala: erties crpicteres: see AS RO rstsctonicicioe 124 


EXECUTIVE SUMMARY 


Science Applications International Corporation (SAIC) conducted monitoring 
surveys of the New London Disposal Site (NLDS) in August 1992; August 1995; 
September 1997; and July 1998, as part of the Disposal Area Monitoring System 
(DAMOS) Program. Field operations in each survey year included data collection of one 
or more of the following: precision bathymetric surveys, Remote Ecological Monitoring 
of the Seafloor (REMOTS®) sediment-profile surveys, and surface and near-bottom 
dissolved oxygen determinations. 


Since its inception in 1977, the Disposal Area Monitoring System (DAMOS) 
Program has investigated dredging and dredged material disposal practices in an effort to 
minimize adverse physical, chemical, and biological impacts. DAMOS utilizes a flexible, 
tiered management approach centered around comprehensive environmental monitoring to 
oversee the placement of sediments at nine open water disposal sites along the coast of 
New England. Active disposal sites are surveyed on a regular basis to ensure the effects of 
dredged material disposition on the benthic habitat are localized and temporary. 


There has been an active dredged material disposal site near New London since at 
least 1955. DAMOS monitoring of the New London Disposal Site started in 1977 when 
the program was established. In 1996, the boundary of the New London Disposal Site 
shown in DAMOS graphics was shifted in accordance with the Final Programmatic 
Environmental Impact Statement, resulting in a 0.2 nmi northerly shift of the disposal site. 
The new, northern region was surveyed in 1997. 


The New London disposal site has been used for on-going disposal throughout the 
1990’s, including unconfined disposal of suitable sediments, and capped disposal of 
unsuitable sediments. This report summarizes the disposal and monitoring activities 
conducted from the 1991-1992 dredging season through monitoring in July 1998. This 
information is presented as a single report to provide a clear, concise picture of use of the 
New London Disposal Site during this time frame and to include important monitoring 
information related to the dredged material mounds. 


During the 1991-1992 disposal season, the NLDS received a total barge volume of 
104,200 m? of dredged material generated from four separate projects in the eastern Long 
Island Sound region. Disposal resulted in creation of two disposal mounds, the 
Dow/Stonington (D/S) mound, consisting of unsuitable dredged material (Dow and 
Stonington sediments) and suitable cap material (Dow sediments), and the NL-91 mound 
immediately north of the D/S mound. 


Bathymetric surveys and REMOTS® data, which were fully developed using pre- 


and post-cap bathymetric survey data analyzed in 1994-1995, showed that due to errors in 
navigation, while some cap material covered the D/S mound, most of the cap material was 


Xili 


deposited approximately 250 m east of the mound. Following the misplacement of some of 
the cap material, additional cap material has been deposited at the site as it becomes 
available, to steadily increase cap thickness over the mound. REMOTS® surveys of the 
D/S mound conducted in 1992, 1995, 1997, and 1998, showed no adverse impacts, strong 
signs of benthic community recovery, and the continued presence of a stable benthic 
community. 


During the 1994-1995 dredging season, two new capped mounds were created at the 
NLDS, including the U.S. Coast Guard Academy (USCGA) mound, and New London 
1994 (NL-94) mound. Although monitoring in August, 1995, indicated the NLDS area 
was experiencing low oxygen bottom waters, it appeared to be part of a regional, seasonal 
hypoxia event that is unrelated to dredged material disposal. The benthic community at the 
newly formed disposal mounds was comparable to the reference areas. The NL-94 cap 
was augmented with additional material during the 1996-97 disposal season, and healthy 
benthic recolonization was evident by the September 1997, surveys. 


Additional disposal activities conducted at the New London Disposal Site during 
this time frame consist of creation of the Seawolf Mound with sediments from the New 
London Naval Submarine Base, the Thames River navigational channel, and two smaller 
dredging projects. Monitoring of this mound conducted in 1997 and 1998 is discussed in a 
separate DAMOS report. 


1.0 INTRODUCTION 


This report summarizes disposal and monitoring activities conducted at the New 
London Disposal Site (NLDS) from the 1991-1992 dredging season through monitoring in 
July 1998. This information is presented as a single report to provide a clear, concise 
picture of use of the New London Disposal Site during this time frame and to include 
important monitoring information related to the dredged material mounds. This report 
(Volume I) covers all disposal, monitoring and management activities at the NLDS over 
the indicated period except those associated with the U.S. Navy Seawolf mound, which 
will be presented separately in Volume II. 


1.1 Background 


Monitoring of the impacts associated with the subaqueous disposal of sediments 
dredged from harbors, inlets, and bays in the New England region has been overseen by 
the Disposal Area Monitoring System (DAMOS) Program since its inception in 1977. The 
goals of the DAMOS Program pertain to detailed investigation and reduction of any 
adverse physical, chemical, and biological effects on the benthic environment associated 
with dredged material disposal activities. The activity sponsored by DAMOS helps to 
ensure that the effects of sediment deposition over pre-defined areas of seafloor are local 
and temporary. A flexible, tiered management protocol is applied in the long-term 
monitoring of sediment disposal at ten open-water dredged material disposal sites along the 
coast of New England (Germano et al. 1994). 


There has been an active dredged material disposal site near New London since at 
least 1955. Disposal activity was focused on 19 disposal sites in Long Island Sound (LIS) 
until the mid-1970s, when they were reduced to four regional sites, including New London 
(Fredette et al. 1993). The Navy began detailed environmental assessment of the New 
London site in 1973 (U.S. Navy 1973, 1975). In 1977, the DAMOS Program assumed the 
monitoring responsibility for active disposal sites in New England including the New 
London Disposal Site (NLDS). 


The New London Disposal Site (NLDS) is an active open-water dredged material 
disposal site located 5.38 km (3.1 nmi) south of Eastern Point, Groton, Connecticut. This 
site has been monitored under the DAMOS Program since 1977 (NUSC 1979; Figure 1-1). 
Centered at 41° 16.306’ N, 72° 04.571° W (NAD 83), the 3.42 km? NLDS has water 
depths which range from 14 m over the NL-RELIC Mound to 24 m at the southern 
disposal site boundary. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


New London, Connecticut 
NEW LONDON 


New London Disposal Site ve 
NAD 83 


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2 


New London 
Disposal Site 
‘WEST REFe 


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Figure 1-1. Location of the New London Disposal Site 
Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


From 1977 to 1992, DAMOS conducted monitoring surveys based on a 1 nmi 
(nautical mile) square disposal site centered at 41° 16.100' N, 72° 04.600' W (SAIC 
1988). In 1982, the Final Programmatic Environmental Impact Statement (FPEIS) for the 
disposal of dredged material in the LIS region recommended the continued use of the four 
existing disposal sites in LIS, including New London (USACE 1982). These four sites had 
been identified prior to the completion of the FPEIS by the Connecticut-New York Interim 
Plan (NERBC 1980). The Interim Plan identified center coordinates for a slightly different 
location (0.2 nmi due north of the DAMOS coordinates). As of 1 January 1996, DAMOS 
adopted the new center coordinates as defined in the Interim Plan as 41° 16.300' N, 72° 
04.600' W in North Atlantic Datum 1927 (NAD 27). It is unknown why the original 
DAMOS center coordinates were not in agreement with the Interim Plan, but no projects 
were directed to the southern edge of the site during this period, so the change has had no 
effect on disposal site management or monitoring. This change corrects the slight 
discrepancy and brings DAMOS in agreement with the FPEIS. Similar changes have been 
made to the Central Long Island Sound Disposal Site and the Cornfield Shoals Disposal 
Site. 


The location of NLDS intersects with two important management boundaries: a 
300-m wide submarine transit corridor; and the New York-Connecticut state boundary 
(Figure 1-1). The submarine transit corridor has been established to minimize conflict 
between submarine traffic to, and from, the submarine base in Groton, CT and disposal 
buoys that may not be seen when submarines transit submerged. The state boundary 
affects state regulatory authority under the Coastal Zone Management Act (CZMA) and the 
issuance of state water quality certification for disposal permits (Carey 1998). Under the 
CZMA, states must concur that disposal activities in their state waters are consistent with 
their federally approved Coastal Zone Management Plans before permits are issued by the 
USACE. 


The long-term observation of the effects of disposed dredged material is facilitated 
by the construction of distinct sediment mounds within a disposal site. Development of 
disposal mounds is achieved by directing barges to predetermined locations typically 
marked by surface buoys, which have taut-line moorings to maximize position stability. 
When necessary, mounds are constructed in phases to allow for capping of material 
deemed unsuitable for open-water disposal. Capping is a subaqueous containment method 
that utilizes material determined to be suitable for open-water disposal (hereafter referred 
to as capping dredged material, or CDM) to overlay and isolate deposits of unacceptably- 
contaminated dredged material (UDM) from the surrounding environment (Fredette 1994). 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


Recent disposal activity has been located to take advantage of the bottom 
topography created by historical disposal mounds. Two management objectives have been 
sought: creation of a “bowl” by placement of mounds in a “ring”; and constraint on the 
spread of dredged material disposed at the site. The lateral spread of dredged material 
disposed through the water column is strongly affected by bottom slope (Bokuniewicz et al. 
1978). By placement of the taut-wire moored disposal buoys, disposal activity can be 
directed to specific locations and thereby limit the horizontal spread of material by filling 
depressions or confining material between adjacent, older mounds. Minimizing lateral 
spreading of mounds can increase site capacity and reduce the volume of material required 
for capping. Additionally, in order to reduce the potential effects of bottom currents and 
storm-generated waves, sediment mounds at the NLDS are developed in a broad, flat 
manner, maintaining a minimum water depth of 14 meters. This minimum depth also 
allows for the safe passage of deep draft Navy vessels transiting through the disposal site 
(NUSC 1979). Presently, there are 10 discernible mounds (NL-95 is merged with the 
Seawolf Mound) within the boundaries of the disposal site (Figure 1-2). 


The Thames River, located in southeastern Connecticut, discharges fresh water and 
sediment from the interior of eastern Connecticut into Long Island Sound. The mile-wide 
basin of the lower Thames River and New London Harbor is utilized by military, 
commercial, and recreational vessels seeking protection from the open waters of Long 
Island Sound (Figure 1-1). Maintenance dredging of New London Harbor and adjacent 
coastal areas, overseen by the NAE, is required to insure navigable waterways and 
adequate dockage for deep draft vessels. Most of the material generated from dredging 
operations is transported by barge and deposited at the New London Disposal Site (NLDS) 
in Long Island Sound. 


Disposal of dredged material occurred within and around the NLDS area for a number 
of years before the inception of the DAMOS Program. The formation of the NL-RELIC 
Mound was a result of dredging and disposal of sediments from the Thames River and New 
London Harbor prior to 1977 and during the early 1980s (NUSC 1979; SAIC et al. 1985). 
The area surrounding the NLDS is subject to moderate to high bottom currents (maximum 
bottom current of 55 cm-s”) relative to other containment disposal sites in Long Island Sound 
(Waddell et al. 1999). However, the shelter provided by Fisher’s Island, the southern fork of 
Long Island and the Connecticut shoreline protect the disposal site from the effects of major 
storm waves. This inference is supported by the fact that many historic disposal mounds have 
remained stable in both height and shape over at least ten years, and in some cases (such as 
NL-RELIC) twenty years or more (Figure 1-2). 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


September 1997 Master Bathymetric Survey 


41° 16.750° N 


41° 16.250° N 


41° 16.000° N 


41° 15.750° N 


NLDS 
Depth in meters 
NAD 83 


Figure 1-2. Bathymetric chart of New London Disposal Site (contour interval = 0.25 m) 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


1.2 Dredged Material Disposal Mounds 


In September 1997, Science Applications International Corporation (SAIC) 
conducted a master bathymetric survey at the NLDS (Figure 1-2). The master bathymetric 
survey provides a reference frame for locating the disposal and monitoring activities 
conducted from 1991-1998. For each mound complex, the disposal history will be 
described followed by a summary of monitoring activities. A timeline of all of these 
activities (Figure 1-3) has been provided to summarize the events; details of the survey 
methods are provided in Section 2.0. 


The September 1997 master bathymetric survey also marked the conversion from 
the horizontal navigational reference system of the North American Datum of 1927 (NAD 
27) to the North American Datum of 1983 (NAD 83) for all future bathymetric surveys 
conducted at this site (see Methods section). 


1.2.1 Dow/Stonington and 1991-1992 Disposal Activity 


A series of buoy positions and disposal activities occurred between the fall of 1991 
and spring of 1992 (Figure 1-3). These activities resulted in formation of a small, flat 
mound complex (designated the New London-91 and Dow/Stonington mound complex) 
that lies within the center of NLDS surrounded and protected by slightly higher mounds 
(Figure 1-2). The surface of this mound complex shows little relief and has been 
consistent in character throughout the six-year period covered by this report. Most of the 
complex has an upper layer of sand mixed with shells and pebbles in some areas. This 
surface has been rapidly colonized by a stable benthic community after each sequence of 
disposal. 


The history of disposal within this area is complicated and needs to be described in 
detail before presenting the survey results. The taut-wired buoy "NDA" was first deployed 
for the 1991-1992 disposal season by SAIC on 26 September 1991 at coordinates 
41°16.239' N, 72°04.486' W (NDA #1; Figure 1-3). 


The sediments deposited at the NDA buoy were dredged from the Gwen Mor 
Marina in the Mystic River and Port Niantic, Inc. in the Niantic River. An estimated 
barge volume of 5,700 m3 of dredged material was deposited in close proximity to the 
NDA buoy before it was struck and dragged off-station by a U.S. Navy submarine 
transiting through NLDS (Appendix A1). 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 — 1998 


On 27 November 1991, the NDA buoy was re-positioned at 41°16.251' N, 
72°04.497' W (NDA #2). A second, smaller buoy, "D/S", was placed 175 m south of 
NDA #2 at coordinates 41°16.162' N, 72°04.468' W (Figure 1-3; Appendix A, Table 1). 
From 28 November to 12 December 1991, 3,100 m? of additional material from Gwen 
Mor Marina and Port Niantic, Inc. were deposited at the second NDA buoy location 
(Appendix A1). 


The D/S buoy was deployed in support of a sediment capping project, marking the 
deposition point for material generated from dredging operations at Stonington Harbor, 
CT, and the Dow Chemical Company's Allyns Point Plant in Gale's Ferry, CT. During 
the Dow/Stonington capping project, disposal of UDM commenced on 2 December 1991 
and continued through 12 December 1991. Within those 10 days, an estimated barge 
volume of 12,000 m3 of material from Stonington Harbor, as well as 24,000 m3 of dredged 
material from Dow Chemical Company's Allyns Point facility, was deposited in close 
proximity to the D/S buoy (Appendix A2). Upon conclusion of UDM deposition, a precap 
bathymetric survey was performed for the Dow Chemical Company by Ocean Surveys 
Incorporated (OSI) of Old Saybrook, Connecticut. 


The detected UDM deposit was then targeted for capping with an estimated barge 
volume of 59,300 m3 of CDM from the Dow Chemical project. A series of seven capping 
points (A-G) were developed to control the CDM dispersal pattern in order to efficiently 
cover the 36,100 m3 of UDM to a desired sediment cap thickness of 50-100 cm. 

However, due to an apparent error, the positions of the seven capping points were 
misinterpreted. As a result, cap material was released both over the mound and east of the 
initial D/S sediment deposit. On 15 January 1992, capping operations were concluded, 
and a postcap bathymetric survey was conducted in August 1992. 


At the conclusion of the capping project, the disposal buoys were scheduled to be 
repositioned at the request of the U.S. Coast Guard and the U.S. Navy. The U.S. Coast 
Guard stated that U.S. Navy vessels frequently transit through the area and the disposal 
buoys posed a hazard to navigation. The NDA buoy was repositioned on 22 January 1992 
at 41°16.252' N, 72°04.756' W, a position outside a newly designated U.S. Navy 
shipping lane (NDA #3; Figure 1-3). The smaller D/S buoy, which was scheduled for 
removal from NLDS, was not found in the area. It is believed that the D/S buoy was 
removed from the site by a U.S. Navy submarine passing through NLDS on approximately 
14 January 1992. 


The NDA buoy was repositioned, again at the U.S. Navy's request, on 10 April 
1992, to its final location of 41°16.163' N, 72°04.996' W, 475 m west of the U.S. Navy 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


9 


corridor that transects NLDS (NDA #4; Figure 1-3). No disposal was reported at the third 
or fourth NDA buoy locations. 


In summary, during the 1991-1992 disposal season, a total of 8,800 m? of dredged 
material was disposed at NDA buoy locations #1 and #2 (Appendix Al). A total barge 
volume of 95,400 m3 of sediment associated with the Dow/Stonington capping project was 
deposited near the center of NLDS (Appendix A2). 


A small dredged material disposal mound, which did not require capping, was 
formed at 41°16.577' N, 72°04.862' W. This mound (the NL-91 Mound) was formed 
when 16,800 m? of dredged material suitable for unconfined open-water disposal was 
released at the NDA 92 buoy between 6 February and 2 April 1993. 


Although the NDA-97 buoy was deployed in September 1997 at 41° 16.2337 N, 
72° 04.906” W (NAD 83) over the NL-94 mound area, disposal was actually directed to 
capping points over the NL-91 and D/S mound complex during the 1997-1998 season in 
order to augment the cap. DAMOS surveys conducted in 1992 and 1995 indicated that 
although a layer of sand covered much of the original Dow/Stonington material, additional 
cap material should be placed on the mound complex to ensure unsuitable material was 
isolated from the marine environment. An estimated barge volume of 3,750 m3 of suitable 
sediment dredged from Shennecossett Yacht Club was deposited over the mound from 10 
September 1997 to 9 April 1998. In addition, approximately 3,100 m? of dredged material 
from Gales Ferry Marina was deposited at the capping points from 15 to 18 October 1997. 
Buoys are not placed in this region to avoid potential obstruction of the 300-m wide 
submarine transit corridor. Therefore, accurate disposal was dependent upon the 
navigation to pre-determined points via GPS or LORAN-C. The total barge volume of 
6,850 m?® of CDM was placed in the northern region of the NL-91 and D/S mound 
complex during the 1997-98 disposal season’. 


1.2.2 USCGA and NL-94 Disposal Mounds 


In January 1995, 43,500 m’ of UDM was released at a USCG buoy (41°16.490' N, 
72°04.290' W). This material was then covered with 80,500 m? of capping dredged 
material (CDM). The USCG buoy was located approximately 180 m west of the historic 
NL-TR Mound apex. The USCGA Mound incorporated most of the NL-TR Mound's 


' During the 1998-2000 disposal seasons, over 20,000 m’ of CDM from a number of projects 
was placed at the D/S mound to augment the cap. Monitoring of the D/S mound was 
conducted during the summer of 2000, including bathymetric and REMOTS® surveys. The 


results of these surveys will be published in a subsequent report. 
Monitoring Cruise at the New London Disposal Site, 1992 — 1998 


10 


western flank. The USCGA Mound was laterally confined by the NL-RELIC Mound to 
the west and the NL-II Mound to the east (Figure 1-3). The NL-94 Mound was formed 
when 8,700 m? of UDM from Pier 15 at the U.S. Navy Submarine Base was released at 
the NDA-94 buoy (41°16.270' N, 72°04.890' W). This UDM, which was released 
between 26 December 1994 and 5 January 1995, was covered by 28,200 m°’ of CDM 
between 17 January and 14 February 1995. The southern flank of the NL-94 Mound abuts 
the historic NL-I Mound. 


In addition to the material disposed at the NL-94 Mound during the 1994-95 
disposal season, additional material was placed in this location during the 1996-97 disposal 
season. In September 1996, a disposal buoy (NDA-96) was deployed at 41° 16.234” N, 
72° 05.912° W (41° 16.228° N, 72° 04.941° W; NAD 27), approximately 80 m west- 
southwest of the NDA-94 buoy location (Figure 1-2). An estimated barge volume of 3,400 
m3 of material dredged from the Niantic River as well as Gales Ferry Marina in the 
Thames River was deposited at the NDA 96 buoy, to add to the existing NL-94 Mound. 


1.3 Monitoring Activity 
1.3.1 August 1992 Monitoring Survey 


SAIC conducted a monitoring survey at NLDS from 7 to 9 August 1992 as part of 
the DAMOS Program. The field efforts were concentrated over the central region of the 
disposal site and consisted of precision bathymetry, Remote Ecological Monitoring of the 
Seafloor (REMOTS®) sediment-profile photography, and dissolved oxygen (DO) 
measurements to provide information on the effects of the sediment deposition that 
occurred in 1991-1992. 


The objectives of the August 1992 New London Disposal Site survey were to 
e delineate the extent and characterize the topography of recently deposited 
dredged material around the Dow/Stonington and NDA disposal points since the 


June 1991 survey; 


e assess the recolonization status of benthic biota and determine the spatial limits 
of the recently deposited sediment; 


e determine near-bottom and surface dissolved oxygen concentrations at the active 
disposal mound and reference areas. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


The 1992 monitoring scheme at NLDS was designed to verify the following 
predictions based in part on the tiered DAMOS monitoring protocol: 


e Based on a disposal simulation model, sediment deposited in proximity to the 
D/S buoy during the 1991-1992 season should result in the formation of a 
capped mound having a radius of approximately 250 m; 


e A sediment cap of suitable material, 50-100 cm thick, should exist over the 
material dredged from Dow Chemical Company and Stonington Harbor, CT; 


e Benthic recolonization over the active disposal area should consist primarily of 
Stage I organisms (small pioneering polychaetes). Recolonization on the flanks 
of the NL-91 and D/S mound complex and NDA disposal mounds and the 
reference sites should be primarily Stage II and Stage III (tubicolous amphipods 
and larger burrowing deposit feeders); 


e Near-bottom dissolved oxygen concentrations at stations within the disposal site 
should be comparable to dissolved oxygen concentrations at reference area 
stations. 


1.3.2 August 1995 Monitoring Survey 


A survey was conducted by SAIC at NLDS from 23 to 26 August 1995 aboard the ~ 
M/V UCONN. The survey investigated three capped mounds: the U.S. Coast Guard 
Academy (USCGA) mound, the New London 1994 (NL-94) mound, and the NL-91 and 
D/S mound complex. One mound that did not require capping was also surveyed, the New 
London 1992 (NL-92) mound. The survey was designed to measure the areal extent of the 
dredged material at the USCGA, NL-94 and NL-92 mounds, assess the recolonization 
status of the benthic community at the capped mounds, and determine the effectiveness of 
capping operations. 


Prior to the survey, predictions were made regarding the health of the benthic 
community and the geometry of the disposal mounds (Germano et al. 1994). It was 
expected that the benthic community at the most recent disposal mounds would be in the 
early stages of recolonization. Benthic infauna at the NL-91 and D/S mound complex 
were predicted to be similar to infauna at the reference areas. The data from this survey 
showed that the benthic community at the most recent mounds and at the relic NL-91 and 
D/S mound complex reflected ambient benthic conditions. Based on the amount of 
material slated to be released at the buoys, mounds NL-94 and USCGA were predicted to 
be 1.6 m high and 100 m wide (NL-94) and 4.5 m high and 300 m wide (USCGA) if 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


12 


disposed on a level seafloor. Bathymetric measurements of the actual seafloor showed the 
mounds to be shorter with a more complex shape than predicted by computer models. 


1.3.3 September 1997 Monitoring Survey 


The specific objectives of the September 1997 New London Disposal Site 
monitoring survey were to: 


e Assess the benthic recolonization status of the NL-94 mound, as well as the NL- 
91 and D/S mound complex, relative to the three reference areas surrounding 
NLDS; 


e Perform a detailed master bathymetric survey of the region surrounding NLDS 
as defined by the 1982 FPEIS; 


e Document and delineate the changes in bottom topography (accumulation and 
consolidation) in the areas of concentrated disposal since August 1995. 


Analyses of data collected during the September 1997 field effort at NLDS were 
used to test two hypotheses consistent with the DAMOS Tiered Monitoring Protocols 
(Germano et al. 1994). First, it was hypothesized that the past two years of disposal 
activity at NLDS had resulted in the formation of a wide sediment mound encompassing 
material deposited at the NDA-95 buoy, while the limited volume of material deposited at 
the NDA-96 buoy had broadened the southwest apron of the NL-94 Mound. Second, a 
healthy benthic assemblage with Stage III individuals was expected at the older disposal 
mounds, including the NL-91 and D/S mound complex, as well as the NL-94 Mound. 


1.3.4 July 1998 Monitoring Survey 

Field operations at the NLDS in July 1998 consisted of a 1000 <x 1000 m 
bathymetric survey and REMOTS® sediment-profile photography. These surveys repeated 
those conducted in 1997. 
The objectives of the 1998 monitoring surveys were to: 

e Assess the benthic recolonization status of the NL-91 and D/S mound complex 


relative to the three reference areas surrounding the NLDS and to the 1997 
survey; 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


13 


e Map the extent of fresh capping dredged material over the NL-91 and D/S 
_ Mound complex. 


Analyses of data collected during the July 1998 field effort at the NLDS were used 
to test hypotheses consistent with the DAMOS Tiered Monitoring Protocols (Germano et 
al. 1994). First, a healthy benthic assemblage with Stage III individuals were expected 
over the older areas of the NL-91 and D/S mound complex. Where new capping material 
had been placed over the mound complex, Stage I and II organisms were predicted to be 
common, representing the early phase of recolonization. Finally, a new layer of capping 
dredged material was expected to be detected in REMOTS® stations over the northern and 
possibly western region of the NL-91 and D/S mound complex. 


1.3.5 NLDS Northern Region 


In 1996, DAMOS adopted the NLDS programmatic EIS boundaries which resulted 
in a northerly shift of the NLDS boundaries. A baseline characterization of the seafloor 
between latitudes 41° 16.606° N and 41° 16.806’ N and longitudes 72° 03.907” W and 
72° 05.234° W was required to ensure adequate comparisons with future datasets (Figure 
1-2). The 1997 survey over this 0.685 km? area was conducted to provide detailed 
information pertaining to bathymetric features and sedimentary characteristics within the 
Northern Region. In addition, REMOTS® data were collected over the Northern Region of 
NLDS to provide baseline characterization of the sediments prior to dredged material 
disposal. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


14 


2.0 METHODS 


Over the period 1992 to 1998, four environmental monitoring surveys occurred at 
the NLDS. In general, field surveys under the DAMOS program are conducted in the 
summer, following the dredged material disposal season (1 October to 31 May), to verify 
placement of materials and evaluate environmental effects associated with the disposal 
activities. Typical survey objectives include determining the distribution of dredged 
material on the seafloor and progress in recolonization by benthic organisms. 


Precision bathymetry and REMOTS® sediment-profile photography have been 
employed as the standard tools for tracking the placement of dredged material, examining 
long term fate of individual sediment deposits, and assessing biological conditions at the 
disposal sites relative to nearby reference areas. These methods were developed in the 
context of a rigorous tiered monitoring approach (Germano et al. 1994). Utilizing these 
monitoring techniques, comprehensive monitoring surveys were conducted at NLDS in 
August 1992, August 1995, September 1997, and July 1998 (Table 2-1). The bathymetric 
and REMOTS® sediment-profile photography survey grids at NLDS varied from year to 
year based on changes in the active areas within the disposal site and the overall 
management strategy. 


2.1 Bathymetry and Navigation 


This report chronicles six years (1992-1998) of disposal and survey activity at 
NLDS. Within this time period, the instrumentation and analysis procedures employed by 
SAIC evolved in a manner that best utilized advances in technology and presentation of 
data. This evolution was tightly controlled in order to increase the efficiency of survey 
operations while continuing to provide accurate and comparable data relative to previous 
monitoring surveys. 


Since the inception of the DAMOS Program, all survey results and reported station 
locations have been referenced to the North American Datum of 1927 (NAD 27). As the 
use of high precision Differential Global Positioning System (DGPS) data has become 
more widespread, an effort to utilize the most recent datum (the North American Datum of 
1983 [NAD 83]) has been instituted. Consequently, this document transitions between the 
use of NAD 27 and NAD 83 at NLDS. All survey results, reported station locations, and 
disposal site boundaries pre-dating the 1997 Master Bathymetric survey, are referenced to 
NAD 27 unless otherwise noted. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


15 


Table 2-1 
Summary of Bathymetry and REMOTS® Surveys conducted at NLDS 1992-1998 


NUMBER OF 
YEAR AREA SAMPLES PATTERN 
1992 
Bathymetry 1600 m X 1600 m 
Bathymetry (NAD 27) 
REMOTS® NL-91 & D/S 41 Radial around NDA-91-2 
Sediment Profile W-REF 13 Cross-Shaped 
Photography NE-REF 13 Cross-Shaped 
NLON-REF 13 Cross-Shaped 
1995 
Bathymetry 1600 m X 1600 m 
Bathymetry (NAD 27) 
REMOTS® NL-91 and D/S mound complex 13 Cross-Shaped 
Sediment Profile USCGA Mound 13 Cross-Shaped 
Photography NL-94 Mound 15 Radial 
W-REF 6 Random 
NE-REF 5 Random 
NLON-REF 4 Random 
1997 
Bathymetry 2100 m X 2100 m 
Master Bathymetry (NAD 83) 
REMOTS® NL-91 and D/S mound complex 13 Cross-Shaped 
Sediment Profile NL-94 Mound iS) Radial 
Photography W-REF 4 Random 
NE-REF 5 Random 
NLON-REF 4 Random 
1998 
REMOTS® NL-91 and D/S mound complex 13 Cross-Shaped 
Sediment Profile W-REF 4 Random 
Photography NE-REF 5 Random 
NLON-REF 4 Random 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


16 


2.1.1 1992 and 1995 Survey Activity 


During the 1992 and 1995 survey efforts, SAIC’s Integrated Navigation and Data 
Acquisition System (INDAS) was used for precision navigation and data collection 
(Table 2-2). This system utilized a Hewlett Packard 9920 series computer to provide real- 
time navigation, as well as collect position, depth, and time data for later analysis. INDAS 
was interfaced with a Del Norte Model 542 Trisponder® System that provided real-time 
positioning to an accuracy of +3.0 m. The Del Norte Trisponder System is based on 
multiple range (range-range) measurements from shore-based remote stations in order to 
triangulate vessel position at a frequency of 1 Hz. SAIC established two shore stations 
along the Connecticut coast at the known benchmarks of Millstone Nuclear Power Station 
(41°18.312' N, 72°09.873' W) and New London Lighthouse (41°18.991' N, 
72°05.414' W) for the survey operations performed at NLDS (Figure 1-1). In order to 
facilitate comparisons with previous data sets, all positioning information was referenced to 
the horizontal control of North American Datum of 1927 (NAD 27). A detailed 
description of the navigation system and its operation can be found in the DAMOS 
navigation and bathymetry reference report (Murray and Selvitelli 1996). 


In August 1992, SAIC completed a bathymetric survey over a 1600 m X 1600 m 
survey area centered at 41°16.235' N, 72°04.492' W. This survey required 65 lanes at 
25 m lane spacing to cover the 2.56 km? area (Figure 2-1). This was an identical grid used 
for bathymetric surveys in June-July 1990 and June 1991, permitting depth differences to 
be calculated relative to previous surveys. In-depth analysis of the D/S mound was 
accomplished by re-gridding the bathymetric data to a 500 m X 670 m area surrounding 
the disposal buoy positions (Figure 2-1). 


The 1600 m X 1600 m survey area was reoccupied in August 1995 to determine the 
changes in seafloor topography resulting from the deposition of sediments from October 
1992 through June 1995. This survey area was later divided into smaller analysis areas 
(NL-92 mound, NL-94 mound, USCGA mound) to yield better-defined depth difference 
comparisons with the August 1992 survey (Figure 2-1). 


2.1.2 1997 and 1998 Survey Activity 


In 1997, a new master bathymetric survey of the disposal site utilized a different 
positioning and survey system. Bathymetric data were collected with the use of SAIC's 
Portable Integrated Navigation and Survey System (PINSS) during the September 1997 
survey, as well as the effort in July 1998 (Table 2-2). This system utilizes a Toshiba® 
3200DX series computer to provide real-time navigation, as well as collect position, depth, 
and time data for later analysis. A Magnavox MX4200D GPS receiver was interfaced to a 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


18 


1992 and 1995 Bathymetric Survey Area 


D/S, USCGA, NL-92, and NL-94 
Analysis Areas 


41° 16.500°N alysis Areal USCGA Mound 
y Analysis Area 


D/S Mound 


41° 16.000°N 


AE 


I 
peice DAMOS Disposal Site Boundary 


te ch ie abide a an i Aa as ac a 
41° 15.500°N 


72° 05.500° W 72°05.000°W 72°04.500 W 72°04.000°W 72° 03.500° W 


NLDS 
NAD 27 


i OUT 
Om 400m 800m 


Figure 2-1. Location of the 1992 and 1995 bathymetric survey area over NLDS, relative 
to the disposal site boundaries, analysis areas for individual mounds, and the 
New York and Connecticut State Line (NAD 27) 

Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


19 


Leica MX41R differential beacon receiver to obtain positioning data at an accuracy of 
+3 m in the horizontal control of NAD 83. 


The GPS receiver utilized signals emitted from a constellation of satellites that 
provides positioning data to an accuracy of +100 m. In order to increase the accuracy of the 
raw GPS data, a differential beacon receiver was used to collect and decode corrections from 
a Shore-based station. Signals broadcast from the U.S. Coast Guard differential beacon at 
Montauk Point, New York (293 kHz) were utilized for satellite corrections due to its 
geographic position relative to NLDS. When merged with the satellite data, the correctors 
provide differential GPS positions to an accuracy of +3 m with an update rate of 1 Hz. 


The bathymetric survey area occupied in September 1997 was centered at 
41° 16.274° N 72° 04.580° W (NAD 83). This survey was performed to characterize all 
the bathymetric features within the confines of the disposal site. A total of 85 lanes, 
oriented east-west with a 25 m lane spacing, were occupied during the September 1997 
field operations to provide a detailed bathymetric chart of the 4.41 km? area (2100 x 
2100 m; Figure 2-2). No bathymetric data were collected over the project mounds during 
the 1998 survey effort. 


2.1.3 Bathymetric Data Collection 


An ODOM DF3200 Echotrac® Survey Fathometer with a narrow beam, 208 kHz 
transducer measured individual depths to a resolution of 3.0 cm (0.1 ft) as described in 
DAMOS Contribution No. 48 (SAIC 1985). The fathometer is interfaced directly with the 
navigation system. Depth soundings were collected along the individual survey lanes, 
adjusted for transducer depth, and transmitted to INDAS/PINSS at a frequency of 10 Hz. 
The soundings were averaged by the navigation system, merged with positional and time 
information, and recorded at a frequency of 1 Hz. Survey vessel speed and course were 
tightly controlled (2 to 3 meters per second) to ensure adequate numbers of depth values 
collected along the survey lane. 


A Seabird Instruments, Inc. SEACAT SBE 19-01 Conductivity, Temperature, and 
Depth (CTD) Probe was used to obtain sound velocity measurements at the start, midpoint, 
and end of each survey day. The data collected by the CTD were bin-averaged to 1 meter 
depth bins to account for any pycnoclines (rapid changes in density creating distinct layers 
within the water column). A mean sound velocity was then calculated using the bin- 
averaged values. The mean sound velocity was recorded and later used in the post- 
processing of the bathymetric data. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


20 


1997 Bathymetric Survey Area 


41° 16.500° N 


41° 16.000° N 


41° 15.500° N-E— 


72° 05.500° W 72° 05.000°W 72°04.500°W 72° 04.000 W 72° 03.500° W 


NLDS 
NAD 83 


a 
Om 400m 800m 


Figure 2-2. Location of the 1997 master bathymetric survey area over NLDS, relative to 
the disposal site boundaries and the New York and Connecticut State Line 
(NAD 83) 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


21 


2.1.4 Bathymetric Data Processing 


During data analysis, the raw bathymetric data from INDAS/PINSS were corrected 
for changes in tidal height and sound velocity. In 1992, these data were standardized to 
Mean Low Water. Tidal height corrections were based on the observed National Oceanic 
and Atmospheric Administration (NOAA) data for the New London, Connecticut, tidal 
station. The 1995 and subsequent surveys utilized six-minute observed tidal data obtained 
via the National Oceanographic and Atmospheric Administration (NOAA), Ocean and 
Lake Levels Division's National Water Level Observation Network. 


Observed tide data are downloaded through the Internet in a station datum or 
referenced to Mean Lower Low Water (MLLW) and based on Coordinated Universal 
Time. For the 1995 and 1997 NLDS surveys, data from the NOAA tide station 8461490 
in New London Harbor, New London, Connecticut were downloaded in the MLLW datum 
and corrected to local time. Tide differences based on the entrance to West Harbor, 
Fishers Island, New York, were applied to the observed data. 


In August 1995, tidal data were also collected on-site with a Seabird Instruments, 
Inc. SBE 26-03 Sea Gauge wave and tide recorder. The tide gauge recorded pressure 
values every six minutes and provided, after conversion, a constant record of tidal 
variations in the survey area. These observed tidal data were later used to compare and 
verify the corrected NOAA data. 


The bathymetric data were analyzed using SAIC's Hydrographic Data Analysis 
System (HDAS), Version 1.03. Raw bathymetric data were imported into HDAS, 
corrected for sound velocity, and standardized to MLLW using the NOAA observed tides. 
The bathymetric data were then processed to produce depth models of the survey area. A 
model is a depth matrix used to generate graphical representations of the survey area (i.e., 
three-dimensional plots and depth contours). A detailed discussion of the bathymetric data 
acquisition and analysis is given in the DAMOS navigation and bathymetry reference 
report (Murray and Selvitelli 1996). 


The depth model for each bathymetric survey performed over NLDS was then 
subjected to depth difference routines in HDAS to detect and quantify changes in seafloor 
topography over time. The end result of the depth difference comparison is a graphical 
representation of a disposal mound or mounds. However, due to a variety of factors (tidal 
corrections, changes in sound velocity through the water column, the slope of the bottom, 
and vertical motion of the survey vessel) comparisons of sequential bathymetric surveys 
can only reliably detect changes in depth of 20 cm or greater. These factors often 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


22 


introduce artifacts that may appear to be small areas of depth increase or decrease. As a 
result, the lateral extent of a disposal mound or apron is often below the threshold of the 
bathymetric data products. Other monitoring techniques are often employed to define the 
thinner margins of the disposal mound (i.e., sediment-profile photography). 


2.2 REMOTS® Sediment Profile Photography 


REMOTS® sediment-profile photography is a benthic sampling technique used to 
detect and map the distribution of thin (<20 cm) dredged material layers, map benthic 
disturbance gradients, and monitor the process of benthic recolonization over the disposal 
mound. This is a reconnaissance survey technique used for rapid collection, interpretation 
and mapping of data on physical and biological seafloor characteristics. REMOTS® 
utilizes a Benthos Model 3731 Sediment-Profile Camera, designed to obtain undisturbed, 
vertical cross-section photographs (in situ profiles) of the upper 15 to 20 cm of the 
seafloor, for analysis and interpretation. 


The REMOTS® hardware consists of a wedge-shaped optical prism having a 
standard 35mm-camera mounted horizontally above in a watertight housing (Figure 2-3). 
The prism resembles an inverted periscope, with a clear Plexiglas window measuring 
15 cm wide and 20 cm high and an internal mirror mounted at a 45° angle to reflect the 
image in the window up to the camera. Light is provided by an internal strobe that resides 
within the optical prism. In order to equalize pressure and reduce refraction, the prism is 
filled with distilled water. The prism sits inside a stainless steel external frame, and the 
entire assembly is lowered to the seafloor using a standard winch mounted aboard the 
survey vessel. Upon contact with the bottom, the prism descends slowly into the seafloor, 
cutting a vertical cross-section profile of the upper 15 to 20 cm of sediment, and a 
photograph is taken of the sediment in contact with the window. The resulting 35-mm 
slides (images) showing relatively undisturbed sediment profiles are then analyzed for a 
standard suite of measured parameters (Rhoads and Germano 1982; 1986). 


Computer-aided analysis of each REMOTS® sediment profile image yielded a series 
of measurements. The standard measured parameters include sediment grain size major 
mode, camera prism penetration depth (an indirect measure of sediment bearing 
capacity/density), small-scale surface boundary roughness, depth of the apparent redox 
potential discontinuity (RPD), infaunal successional stage, and Organism-Sediment Index 
(a summary parameter reflecting the overall benthic habitat quality). A detailed 
description of REMOTS® photograph acquisition and interpretive rationale is given in 
DAMOS Contribution No. 60 (Parker and Revelas 1989), as well as in Rhoads and 
Germano (1982; 1986). The following paragraphs provide brief descriptions of the 
interpretive framework and methods used for the various measurement parameters. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


23 


LIFTING BAR 


END CAP 
(HOUSING FOR 
ELECTRONICS) 


INNER FRAME 


OUTER FRAME 


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or "WINDOW" 
OF PRISM AGAINST 


SURFACE TO BE 
PHOTOGRAPHED DISTILLED WATER INSIDE PRISM 


2.IMAGE REFLECTS OFF 45° 
<— MIRROR 


Figure 2-3. Schematic diagram of Benthos, Inc. Model 3731 REMOTS® sediment-profile 
camera and sequence of operation on deployment. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


24 


The sediment grain size major mode values are visually estimated from the 
REMOTS® photographs by overlaying a grain size comparator that is at the same scale. 
For REMOTS® analysis, sediment grain size major mode is expressed in phi units. This 
measurement represents the dominant grain size in the entire frame (field of view) and may 
not distinguish layers of coarser or finer material. However, the results presented in this 
report for 1992 and 1997 explicitly record distinct layers separately from major mode. A 
grain size scale for sediments has been provided in Table 2-3, to allow easy conversion 
between phi units, millimeters, and standard sieve sizes. 


The REMOTS sediment profile camera consists of an optical prism, which 
penetrates the bottom under a static driving force imparted by its own weight. The 
penetration depth into the bottom depends on the force exerted by the optical prism and the 
bearing strength of the sediment. If the weight of the camera prism is held constant, the 
change in penetration depth over a surveyed site will reflect changes in geotechnical 
properties of the bottom. In this sense, the camera prism acts as a static-load 
penetrometer. The depth of penetration of the optical prism into the bottom can be a 
useful parameter, because dredged and capped materials often will have different shear 
strengths and bearing capacities. 


Small-scale surface boundary roughness is the amount of surface relief at the 
sediment-water interface, and is calculated by measuring the vertical distance between the 
high and low points of the interface in each sediment-profile photograph. Boundary 
roughness can be categorized as biological, physical, or indeterminate. Biological 
disturbances, typically the result of macrofaunal activity, usually result in only a small 
increase is boundary roughness (<1 cm). A mature and undisturbed benthic environment 
tends to have biological boundary roughness. Physical disturbances can be anthropogenic 
in origin (for example, by bottom trawling or dredged material disposal) or attributed to 
natural processes such as wave and current motion. 


The Apparent Redox Potential Discontinuity (RPD) depth is the boundary between 
oxygenated sediment and the underlying hypoxic or anoxic sediment. The RPD depth is a 
sensitive indicator of the biological mixing depth, infaunal successional status, and within- 
station patchiness (Revelas et al. 1987). The RPD is determined by measuring the 
thickness of the high reflectance sediment layer at the sediment-water interface formed by 
light-colored oxygenated or oxidized sediment. : 


Successional stage mapping is based upon the hypothesis that organism-sediment 
interactions follow a predictable successional sequence after a major seafloor disturbance 
(Rhoads and Germano 1986). A disturbance can be any type of event that induces seafloor 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


25 


Table 2-3 


Grain Size Scales for Sediments 
ASTM (Unified) Classification’ | __U.S.Std. Sieve’ [| _‘Sizeinmm __—'|_—S~Phi@) Size__| Wentworth Classification’ 


Boulder 


Boulder 

12 in 300 mm) 

Large Cobble 
Cobble 


Small Cobble 
3 in (75mm) 


Very Large Pebble 
Coarse Gravel 


3/4 in (19 mm) : Hi Large Pebble 


Medium Pebble 
Fine Gravel 2.5 

3 

3.5 
4 (4.75 mm) % 5 Small Pebble 

5 x f 

6 5 : e 
Coarse Sand 7 

8 


10 (2.0 mm) Granule 


Very Coarse Sand 
Medium Sand 
Coarse Sand 
Medium Sand 
Fine Sand 


Fine Sand 


Very Fine Sand 
Fine-grained Soil: 


Clay if PI > 4 and plot of PI vs. 


LL is on or above "A" line” 
Silt if PI < 4 and plot of PI vs. 


LL is below "A" line’ 


Coarse Silt 


Medium Silt 
Fine Silt 

Very Fine Silt 
Coarse Cla 
Medium Cla: 
Fine Clay 


x 
and the presence of organic matter 
does not influence LL. 


1. ASTM Standard D 2487-92. This is the ASTM version of the Unified Soil Classification System. Both systems are similar (from ASTM (1993)). 
2. Note that British Standard, French, and German DIN mesh sizes and classifications are different. 
3. Wentworth sizes (in inches) cited in Krumbein and Sloss (1963). 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


26 


erosion, changes seafloor chemistry, or causes major reorganization of the resident 
benthos. These perturbations can be natural events (i.e., strong currents or a passing 
storm) or anthropogenic events (i.e., dredged material disposal or power plant effluent). 


Pioneering assemblages (Stage I) usually consist of dense aggregations of near- 
surface living, tube-dwelling polychaetes. These organisms begin to populate a sediment 
deposit within days of a benthic disturbance, as they readily exploit the competition free 
space. Due to their limited interaction with the sediment, these organisms are usually 
associated with a shallow RPD. 


In more stable environments Stage I assemblages are replaced by infaunal deposit 
feeders or larger tube dwellers (Stage II). Typical Stage II organisms in Long Island 
Sound include shallow-dwelling bivalves and tubicolous amphipods. In general, tubicolous 
amphipods are common in eastern Long Island Sound. The presence of dense aggregations 
of these amphipods (Ampelisca sp.) in the area surrounding NLDS has been identified as a 
cyclical phenomenon as the spring-summer and over-winter populations mature, reproduce, 
and decline. As a result, the timing of the individual REMOTS® surveys over the years 
have documented the amphipod populations in eastern Long Island Sound during different 
stages of the life cycle. 


Stage III biota represent a high-order successional stage and are usually associated 
with areas of seafloor that is not usually subject to surface disturbances. Stage III 
assemblages (infaunal invertebrates) are typically head-down deposit feeders whose feeding 
behavior usually results in distinctive subsurface voids. The foraging activities of Stage III 
organisms are capable of introducing oxygen-rich bottom water to the sediment at depths 
approaching 10-20 cm below the sediment-water interface. As a result, the bioturbational 
activity of Stage III organisms tends to cause the deepening of the RPD. 


A multi-parameter REMOTS® Organism-Sediment Index (OSI) has been 
constructed to characterize habitat quality (Table 2-4). Habitat quality is defined relative 
to two end-member standards. The lowest value is given to those sediments which have 
low or no dissolved oxygen in the overlying bottom water, very shallow RPD depth, no 
apparent macrofaunal life, and methane gas present in the sediment. The REMOTS® OSI 
value for such a condition is minus 10 (-10). At the other end of the scale, an aerobic 
bottom with a deep RPD, evidence of a mature macrofaunal assemblage, and no apparent 
methane gas bubbles at depth will have a OSI value of plus 11 (+11). OSI values of +6 or 
less are indicative of chronically stressed benthic habitats and/or those that have 
experienced recent disturbance (i.e., erosion, sediment transport, dredged material 
disposal, hypoxia, intense demersal predator foraging, etc.; Rhoads and Germano 1982). 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


27 


Table 2-4 
Calculation of REMOTS® Organism Sediment Index Value 


A. CHOOSE ONE VALUE: 


Mean RPD Depth Index Value 
0.00 cm 
> 0-0.75 cm 
0.75 - 1.50 cm 
1.51 - 2.25 cm 
2.26 - 3.00 cm 
Sl +375). Gi 
> 3.75 cm 


B. CHOOSE ONE VALUE: 


Successional Stage Index Value 
Azoic 


Stage I 
Stage I ® II 
Stage II 


Stage II ® I 
Stage III 
Stage I on III 
Stage II on Ill 


C. CHOOSE ONE OR BOTH IF APPROPRIATE: 


Chemical Parameters Index Value 
Methane Present -2 
No/Low Dissolved 
Oxygen** -4 


REMOTS® ORGANISM-SEDIMENT INDEX = Total of above 
subset indices 
(A+B+C) 


RANGE: -10- +11 
** Note: This is not based on a Winkler or polarigraphic electrode measurement. It is based on 
the imaged evidence of reduced, low reflectance (i.e., high oxygen demand) sediment 
at the sediment-water interface. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


2.2.1 NL-91 and the Dow/Stonington (D/S) Mound Complex 


The NL-91 and D/S Mound complex was developed as part of a dredged material 
capping project during the 1991-92 disposal season. These mounds were first monitored 
using REMOTS® sediment-profile photography in August 1992. Three replicate 
photographs were collected at each of 41 REMOTS® stations radially distributed around 
the NDA-91-2 buoy position (Figure 2-4A; Table 2-4). The name of each station in Figure 
2-4 represents its distance (in meters) from the center (CTR) station. Many of these 
stations extend out to historic disposal mounds placed during the last three decades. 


Follow-on surveys (1995, 1997, and 1998) focused primarily on the D/S sediment 
deposit. As a result, the survey grid was modified to evaluate the recovery of the capped 
mound. A cross-shaped, 13-station REMOTS® grid was established over the capped 
mound and centered at the D/S buoy position (41°16.160' N, 72°04.470' W; NAD 27; 
Figure 2-4B). Once again, three replicate photographs were obtained at each REMOTS® 
station. 


This smaller, 13-station REMOTS® grid was re-occupied in 1997 and 1998, 
replicating the August 1995 monitoring activity. The change in positioning systems and 
horizontal control (NAD 27 to NAD 83) resulted in a change in the units of the survey 
center (41° 16.168’ N 72° 04.439° W; NAD 83; Table 2-4). However, there was no 
alteration of the REMOTS® survey grid relative to seafloor features and operations 
performed in previous years, only a change in the reported coordinate system 
(Figure 2-4B). 


2.2.2 USCGA Mound 


The USCGA mound was first examined using sediment-profile photography in 
August 1995. A 13-station, cross-shaped grid, with a southeast extension, centered at 
41°16.480' N, 72°04.290' W (NAD 27) was established over the USCGA mound 
(Figure 2-5; Table 2-5). Due to the findings of the August 1995 effort, no follow-on 
surveys were conducted in 1997 or 1998. 


2.2.3 NL-94 Mound 


The NL-94 mound was subjected to detailed investigation using REMOTS® 
sediment-profile photography in August 1995 and September 1997. A 15-station, modified 
radial grid centered on the NDA-94-1 buoy position (41°16.240' N, 72°04.890' W; NAD 
27) was established over the NL-94 mound. The REMOTS® stations extended up to 150 m 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


29 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


30 


1992 REMOTS® Sediment-Profile Photography 
Sampling Grid 


41° 16.750°N 


Bathymetric Survey Area 


S) 
AMOS Disposal Site) Boundary 
ty 


41° 16.500°N 


41° 16.250°N 


41° 16.000° 


41° 15.750°N 


72° 05.250° W 72° 05.000° W 72° 04.750°W 72° 04.500°W 72° 04.250°W 72° 04.000° W 


NLDS 
NAD 27 


a 
Om 200m 400m 


Figure 2-4A. Distribution of the 1992 REMOTS® sediment-profile photography stations 
(41) over the NL-91 and D/S mound complex, relative to the DAMOS 
disposal site boundary and the US Navy submarine corridor 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


31 


1995, 1997, and 1998 REMOTS® 
Sediment-Profile Photography 
Sampling Grid 


41° 16.750°N 


GER 
-DA 


Bathymetric Survey Area 
al ‘ 
MOS Disposal Site Boundary 


41° 16.500°N 


ubmarine Cor) 


Ss 


a 
( 


| 


i 


41° 16.250°N 


NCI 
WON CAR, QOE qQ0E age sqne coe 
mk N Nr a a 


Biss Awe 


41° 16.000°N 


41° 15.750°N 


72° 05.250°W72° 05.000°W72° 04.750°W7/2° 04.500°W72° 04.250°W72° 04.000°W 


NLDS 


Ey a7 


Om 200m 400m 


Figure 2-4B. Distribution of 1995, 1997, and 1998 REMOTS® sediment-profile 


photography stations (13) over the NL-91 and D/S mound complex, relative 
to disposal site boundary and the US Navy submarine corridor 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


32 


1995 REMOTS® Sediment-Profile Photography 
Sampling Grid 
USCGA Mound 


41° 16.500°N 


7 


41° 16.250°N 


Figure 2-5. Distribution of 1995 REMOTS® sediment-profile photography stations (13) 
over the USCGA mound, relative to the detectable margins of the mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


from the center of the capped mound (Figure 2-6; Table 2-6A). The 1997 field effort 
reported the survey center as 41° 16.244” N 72° 04.864° W in NAD 83. The 15-station, 
radial pattern was re-occupied in September 1997 to allow comparisons between the data 
sets (Table 2-6). 


2.2.4 Northern Region 


Due to the northerly shift in the surveyed NLDS boundaries in 1996, baseline 
characterization of the sediments within the region north of the NL-Relic mound was 
required. In September 1997, REMOTS® data were collected over the Northern Region to 
evaluate the benthic habitat conditions within the sediments before they received any 
further direct deposition of dredged material (this region received material prior to 
DAMOS monitoring). In order to cover the 0.685 km? area of seafloor efficiently, a total 
of 11 stations were occupied along two parallel, east-west trending lines. Five stations, 
spaced 410 m apart, were established along the northern line (latitude 41° 16.779° N; 
NAD 83) while the southern line (latitude 41° 16.633° N; NAD 83) was composed of six 
stations, spaced at 350 m intervals (Figure 2-7; Table 2-7). 


2.2.5 NLDS Reference Areas 


Data from three reference areas (NLON REF, NE REF, and WEST REF) are used 
for comparison of ambient eastern Long Island Sound sediments relative to the material 
deposited at NLDS through disposal operations. These three established reference areas 
are often sampled as part of sediment chemistry and benthic habitat surveys at NLDS. 
From 1992 through 1998, the NLDS reference areas were sampled as part of the sediment- 
profile photography surveys of the various project mounds within the disposal site. 


In 1992, three 13-station REMOTS® grids were occupied at the NLDS reference 
areas: W-REF, NE-REF, and NLON-REF (Figure 2-8; Table 2-8). The REMOTS® 
sampling grids over the NLDS reference areas formed a cross-shaped pattern with a center 
station and three additional stations along each of four arms spaced at 100 m intervals. 
The surveys over NLON REF, NE REF, and WEST REF were centered at 41°16.660' N, 
72°02.000' W, 41°16.680' N, 72°03.400' W, and 41°16.200' N, 72°06.000' W (NAD 
27) respectively. 


In 1995 and subsequent surveys, the sampling rationale at the NLDS reference areas 
changed somewhat, as a random sampling pattern was introduced (Figure 2-8). Four to six 
stations were randomly selected within a 300 meter radius of the center of each reference 
area. A total of fifteen REMOTS® stations (STA) were sampled at NLON REF, NE REF, 
and WEST REF in 1995. NLON REF was sampled at four randomly selected stations. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


34 


Table 2-6 
USCGA Mound 
REMOTS® Stations Coordinates 


1995 
| NAD27 


[Area | Station | Latitude | Longitude 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


41° 16.468" 
41° 16.495" 
41° 16.522° 
41° 16.441" 
41° 16.414° 


USCGA 41° 16.387" 
1995 41° 16.468" 

41° 16.468° N 41° 16.468" 
72° 04.297° W 41° 16.468" 


41° 16.449° 
41° 16.430° 
41° 16.468" 
41° 16.468" 


C55 C5 CS C4 CS TS CBS ECS, SS 


72° 04.297" 
72° 04.297" 
72° 04.297" 
72° 04.297" 
72° 04.297" 
72° 04.297" 
12° 04.261° 
72° 04.225° 
72° 04.190" 
12° 04.272° 
72° 04.246" 
72° 04.333" 
72° 04.369" 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


36 


North Region 


Table 2-8 


New London Disposal Site 


Northern Region 


REMOTS® Stations Coordinates 


1997 

[Area | Station | Latitude | Longitude 

41° 16.633” 
41° 16.779" 
41° 16.633" 
41° 16.779" 
41° 16.633" 
41° 16.779" 
41° 16.633 
41° 16.779" 
41° 16.633" 
41° 16.779" 
41° 16.6337 


NLDS 


1997 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


72° 03.945" 
72° 03.988" 
72° 04.196" 
72° 04.282° 
72° 04.446" 
72° 04.576" 
72° 04.697° 
72° 04.869" 
72° 04.948" 
72° 05.162” 
72° 05.198" 


Fh ea 202 ed, 2d FB e2 FD FA Fe 
SfStetete2e222228&= 


41° 16.400° N-> 


41° 16.300° N-+ 


ST, 


NL-94 Mound 


1995 & 1997 REMOTS® Sediment-Profile Photography 
Station Locations 


Wie / BACs SA 
KOON Acoustically Detectable __ 


400NW) 400NE “NL-94 Mound / 
Ty Rey Ze v= QO \ 


41° 16.200° NI / 


41° 16.100° N4\ \ 


¢ 


Figure 2-6. 


72° 05.000° W 72° 04.900°W 72° 04.800 W 72° 04.700 W 72° 04.600° W 


NLDS 
NAD 27 


a 
Om 100 m 200 m 


Distribution of 1995 and 1997 REMOTS® sediment-profile photography 
stations (13) over the NL-94 mound, relative to the detectable margins of the 


mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


38 


1997 REMOTS® Sediment-Profile Photography 
Station Locations over September 1997 Bathymetery 


41° 16.800° Nj 


_Northern Region 


41° 16.600° N | 
_/museeuic * 


41° 16.400° N 


USCGAINL ‘TR 


72° 05.300° W 72° 04.900° W 72° 04.500° W 72° 041 00° W 


Figure 2-7. Distribution of 1997 REMOTS® sediment-profile photography stations (11) 
over the Northern Region, relative to the FPEIS disposal site boundary and 
historic disposal mounds 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


39 


1992, 1995, 1997, and 1998 Reference Area 
REMOTS® Sediment-Profile Photography 
Sampling Grids 


41° 17.000’ N Ver 
NLON REF 


NE REF 300 m radius 


41° 16.500° N o< 
1992 Survey Grid 


41° 16.000° N 


PEIS Boundary 


\Boundary. See 


41° 15.500" N4 connecticut 


Figure 2-8. Location of the NLDS reference areas and distribution 1992 reference area 
REMOTS® sediment-profile photography stations (39), relative to the NLDS 
site boundaries and New York-Connecticut State Line 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


40 


WEST REF was sampled at six randomly selected stations (STAS falling outside the 300 m 
sampling radius). NE REF was sampled at five randomly selected stations (STA1 falling 
outside the 300 m sampling radius; Table 2-8). 


The random sampling protocol continued for the 1997 and 1998 field efforts with 
NLON REF (41°16.666° N, 72° 01.971° W) and WEST REF (41° 16.206” N, 72° 
05.971” W) each being sampled at four randomly selected stations. NE REF (41° 16.6867 
N, 72° 03.371°W) was sampled at five randomly selected stations. However, the center 
coordinates and target station locations were reported in the horizontal control of NAD 83 
(Figure 2-8; Table 2-8). 


2.3. Dissolved Oxygen Sampling 


All dissolved oxygen (DO) sampling activities were conducted 8 and 9 August 1992 
and included CTD casts and Niskin bottle water sampling. Profiles were completed at one 
station over the D/S mound (200 SW) and one station at each of the three reference areas 
(Figure 2-9). In addition, surface and near-bottom water samples were collected at each 
DO Station and subjected to Winkler titration to verify the CTD values. 


A Sea-Bird Electronics, Inc., Model SBE 19-01 CTD equipped with a centrifugal 
pump and a SBE 13 Dissolved Oxygen Sensor was used to collect water column and near 
bottom water quality data (temp, salinity, pressure, density, dissolved oxygen 
concentrations). The CTD was allowed to equilibrate in ambient surface water for two 
minutes before performing a cast. The descent rate was controlled to yield sufficient data 
for each 1 meter horizon within the water column. As the CTD probe approached the 
bottom, the unit was allowed to rest approximately 1 meter above the seafloor for a period 
of one or more minutes before beginning the ascent. Upon retrieval from the water, data 
was downloaded to a Toshiba® 3200T personal computer for analysis. 


Water samples were taken simultaneously with the CTD DO profile. A pair of 5- 
liter Niskin bottles were tripped one meter below the air-water interface and one meter 
above the sediment-water interface. A 300 ml subsample was taken from each Niskin 
bottle, preserved, and titrated within twelve hours using the modified Winkler titration 
(Strickland and Parsons 1972; Parsons et al. 1984). During routine quality assurance 
review of the data, it was determined that the dissolved oxygen sensor on the CTD was 
experiencing a malfunction that resulted in erroneous readings. Therefore, only the 
Winkler titration DO determinations are presented in this report. 


The measurements obtained over two days during the August 1992 survey provide a 
very limited, “snapshot” view of dissolved oxygen conditions within the disposal site and 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


NEW LONDON 1992 A. Station Location | 


Station Designations DO Dissolved Oxygen Station 
7% 5 
® | 400N a 
300N 
200N 
A 
200NW 200NE 
A 100N SOOEN 
1OONW a 
he A, fe __ 
41°16.25'N 400W soow 200W 100W cTR 100E 200E 300E 
100SW 100SE 
| 100S A 
200SW 200SE A 
€ DO A 400ESE 
IS A SOOESE 
300SE A. 
7 N 
A... 300SSE 400SE 
) Meters 300 A A, we 
400SSE 
A... i 
A 600SE 
41°16,00'N A, SOOSSE 
S 
(Note: Reference Areas Are Not To Scale) 


Figure 2-9. Locations selected for water column (CTD) profiles, as well as near surface 
and near bottom water samples for dissolved oxygen concentrations during 
the August 1992 field operations 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


42 


at the reference areas. Continuous monitoring over the course of several weeks or months 
was determined to be much more useful for interpreting possible correlations between 
bottom-water DO concentrations and benthic habitat quality. By examining the longer- 
term trends in bottom water DO concentrations, conclusions related to any degradation 
over time or irregularities in benthic recolonization at NLDS could be based on localized 
(dredged material related) or regional (seasonal hypoxia) effects. 


The Connecticut Department of Environmental Protection (CTDEP) sponsors a 
comprehensive DO monitoring program within Long Island Sound. Water quality data are 
collected from 18 stations on a bi-weekly basis throughout the year. As summer 
approaches and hypoxic conditions begin to impact Long Island Sound, the program 
intensifies its sampling efforts by incorporating a total of 48 stations. These data were 
made available to the DAMOS Program for the 1995 and subsequent surveys to document 
the trends in bottom-water DO concentrations and evaluate REMOTS® sediment-profile 
photography results relative to this information. Therefore, DAMOS did not conduct its 
own DO monitoring at the site after 1992. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


44 


3.0 RESULTS 
3.1 D/S and NL-91 Disposal Mounds 
3.1.1 Bathymetry 


The August 1992 precision bathymetric survey showed a minimum depth of 13.0 m 
over the NL-Relic mound to the north and a maximum depth of 23.5 m along the southern 
edge of the survey area (Figure 3-1). Ata contour interval of 0.25 m, the seven inactive 
disposal mounds located within the New London Disposal Site (NL-RELIC, NL-I, NL-II, 
NL-III, NL-85, NL-88, and NL-TR) were clearly defined. 


The August 1992 bathymetric survey was performed following the placement of 
capping dredged material (CDM) associated with the Dow/Stonington project. A 
comparison of this survey with the baseline survey of June 1991 (conducted prior to any 
placement of either UDM or CDM) resulted in detection of an irregularly shaped mound 
approximately 500 m in diameter (Figure 3-2). The depth difference plot revealed a 
mound complex with four distinct peaks. Two of the larger peaks, with heights of 0.7 m 
and 0.5 m, corresponded to the placement of the D/S and NDA buoys (NDA-91-1 and 
NDA-91-2) . The NL-91 and D/S mound complex is composed of 8,800 m? of material 
deposited at the NDA buoy from 26 September 1991 to 22 January 1992. The other two 
peaks, approximately 250 m east-northeast of the D/S buoy, had mound heights of 0.5 m 
and 0.4 m. These mounds were developed over the southwestern flank of the historic NL- 
III mound, and spread into the slightly deeper areas between the NL-III and NL-85 
mounds. They were connected to the western lobe of the NL-91 and D/S mound complex 
by a narrow ridge of dredged material. 


In December 1991, a bathymetric survey was performed for the Dow Chemical 
Company by Ocean Surveys Incorporated, Old Saybrook, CT. This “precap” survey, 
conducted following the placement of UDM but before the placement of CDM, covered a 
940 m X 840 m area centered on the D/S buoy (Figure 3-3). By incorporating this precap 
survey into the existing SAIC data set, a mound development time-series was produced. 
This time-series data set provided a perspective on the placement of material and resulting 
changes in bathymetry. 


The Ocean Surveys Incorporated bathymetry data were re-gridded to a 500 m X 
670 m area along with SAIC's June 1991 and August 1992 bathymetric surveys to focus 
the depth difference analysis. Close examination of the June 1991 bathymetry showed a 
relatively flat area with no major topographic features capable of influencing the 
distribution or spread of material within the immediate vicinity of the disposal points 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


August 1992 Bathymetric Survey 


41° 16.500°N 


41° 16.250°N 


41° 16.000 


72° 05.000W 72°04.750W 72°04500W 72°04.250W 72° 04.000 W 


Buoy Positions 
NDA-91-1 26 Sept - 27 Nov 1991 Depth in meters 
NDA-91-2 27 Nov 1991 - 22 Jan 1992 NAD 27 


NDA-91-3 22 Jan - 10 Apr 1992 
NDA-91-4 10 Apr - 1 June 1992 a 
Om 200m 400m 


D/S 27 Nov 1991 - 15 Jan 1992 (missing) 


Figure 3-1. Bathymetric contour plot of the 1600 m x 1600 m survey area over the New 
London Disposal Site, August 1992. A 0.25 m contour interval shows current 
and relic disposal mounds 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


46 


Depth Difference 


August 1992 vs. August 1991 Bathymetry 
Total Accumulation of Dredged Material 
over the NL91 and Dow/Stonington Disposal Mounds 


41° 16.500°N 


41° 16.250'N 74 


41° 16.000°N 


NDA-91-1 26 Sept - 27 Nov 1991 
NDA-91-2 27 Nov 1991 - 22 Jan 1992 
NDA-91-3 22 Jan - 10 Apr 1992 
NDA-91-4 10 Apr - 1 June 1992 


Mound Height in meters 
NAD 27 


——— 
Om 200m 400m 


| D/S 27 Nov 1991 ¢ 15 Jan 1992 (missing) 


Figure 3-2. Bathymetric contour plot of depth differences between the June 1991 and 
August 1992 surveys in the vicinity of the Dow/Stonington mound, complete 
with plotted positions of the 1991-1992 disposal buoys, 0.1 m contour interval, 
depth in meters 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


47 


Ocean Surveys, Inc. 
December 1991 Bathymetry 


41° 16.300° N 


41° 16.200° N 


41° 16.100° N 


41° 16.000° N 


72° 04.600° W 72° 04.500° W 72° 04.400°W 72° 04.300° W 72° 04.200° W 


NLDS 
Depth in meters 
NAD 27 


ki ~=— oC aa) 
Om 100 m 200 m 


Figure 3-3. Bathymetric contour plot of the 940 m x 840 m survey conducted at the New 
London Disposal Site by Ocean Surveys Incorporated in December 1991, 
0.5 m contour interval 


Monitoring Cruise at the New London Disposal Site, 1992 — 1998 


48 


(Figure 3-4). Depth difference calculations between SAIC's June 1991 and OSI's 
December 1991 surveys showed the accumulation of dredged material to a thickness of 1.0 
m around the D/S and NDA buoy locations (Figure 3-5; Appendix A1). 


According to the DAMOS disposal logs, the Gwen Mor Marina and Port Niantic 
material was repeatedly deposited south and east of the NDA #1 and #2 buoy locations. 
The majority of Dow Chemical Company and Stonington Harbor UDM was reportedly 
disposed on the eastern side of the D/S buoy, consistent with the depth difference plot. 

The smaller mounds (0.4 to 0.8 m high) to the east of the larger deposit probably represent 
Gwen Mor Marina and Port Niantic dredged material released while the NDA #1 buoy was 
off-station, due to contact with a U.S. Navy submarine. 


Comparisons were then made between the re-gridded August 1992 postcap 
bathymetric survey performed by SAIC (Figure 3-6) and Ocean Survey Incorporated’s 
December 1991 precap survey. The depth difference calculations showed the buildup of 
CDM to a maximum thickness of 0.8 m approximately 350 m to the east of the D/S buoy, 
with increases in depth of CDM up to 20-40 cm throughout the survey area (Figure 3-7). 
It appears much of the CDM dredged from the Dow Chemical Company's Allyns Point 
facility was actually released somewhat east of the UDM deposit (Figure 3-8). As a result, 
the final, irregularly shaped bottom feature was formed by the coalescing of three sediment 
deposits (NDA suitable material, D/S UDM, and D/S CDM; Figure 3-9). 


Detailed analysis of the 1995 and 1997 bathymetric surveys showed no significant 
difference in the size or shape of the NL-91 and D/S mound complex since 1992. Given 
the low profile of the capped mound as detected in August 1992, large-scale consolidation 
of the sediment deposit was not anticipated. 


3.1.2 REMOTS® Sediment-Profile Photography 


In the August 1992 sediment-profile photography survey over the NL-91 and D/S 
mound complex, 41 stations were occupied to examine surface sediment composition, 
document benthic recolonization, and delineate the aerial extent of the disposal mound 
apron. Follow-on surveys in August 1995, September 1997, and July 1998 consisted of a 
truncated 13-station grid to facilitate long-term monitoring. A complete set of REMOTS® 
image analysis results for these four surveys is presented in Appendix B; the survey results 
are summarized below. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


49 


SAIC June 1991 Bathymetry 
Area of Concentrated Analysis over 
the Dow/Stonington Disposal Mound 


41° 16.300° N 


41° 16.200° N 


41° 16.100° N 


72° 04.600°W 72°04.500°W 72° 04.400°W 72°04.300°W 72° 04.200° W 


LDS 
Corrected to MLW 
Depth in meters 


NAD 27 
Ti 
Om 100m 200 m 


Figure 3-4. Bathymetric contour plot of the June 1991 survey conducted by SAIC, re- 
gridded to a 500 m x 670 m analysis area, 0.5 m contour interval, depth in 
meters 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


Depth Difference 


SAIC June 1991 vs. Ocean Surveys, Inc. 
December 1991 Bathymetry 


41° 16.300° N Gwen Mor Marina 
Port Niantic, Inc 


41° 16.200° N 


aie own of Stonington 
Cont 


41° 16.100° N 


72° 04.600° W 72° 04.500°W 72°04.400°W 72°04.300° W 72° 04.200° W 


NLDS 
Mound Height in meters 
NAD 27 


I Las 
Om 100 m 200 m 


Figure 3-5. Bathymetric contour plot of the depth differences between the SAIC June 
1991 and OSI December 1991 surveys showing accumulation of dredged 
material at the precap stage of development, 0.2 m contour interval 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


51 


SAIC August 1992 Bathymetry 
Area of Concentrated Analysis over 
the Dow/Stonington Disposal Mound 


41° 16.300" 


41° 16.200° 


41° 16.100° 


72° 04.600° W 72°04.500 W 72°04.398° W 72° 04.3027) W 72° 04.200° W 


DS 
Corrected to MLW 
Depth in meters 
NAD 27 


a S| 
Om 100 m 200 m 


Figure 3-6. Bathymetric contour plot of the August 1992 survey conducted by SAIC, re- 
gridded to a 500 m x 670 m analysis area, 0.5 m contour interval, depth in 
meters 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


Depth Difference 


SAIC August 1992 vs. Ocean Surveys Inc. 
December 1991 Bathymetry 


41° 16.300° N 


41° 16.200° N 


41° 16.100° N 


72° 04.602. W 72° 04.500°W 72°04.398°W 72° 04.3027 W 72° 04.200° W 


NLDS 
Mound Height in meters 
NAD 27 


EE 
Om 100m 200 m 


Figure 3-7. Bathymetric contour plot of the depth differences between the SAIC August 
1992 and OSI December 1991 surveys showing accumulation of CDM at the 
postcap stage of development, 0.2 m contour interval 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


53 


Sediment Deposits 
Composing the NL-91 and D/S Mounds 


(Survey 


41° 16.300°N ‘Arti ct 


41° 16.200°N 


vn of Stonington\— | 


sw Chemical Co. 


vi 


41° 16.100°N 


i‘ 


72° 04.600W 72°04.500W 72°04.400W 72°04.300W 72° 04.200 W 


DM thickness in meters 
NAD 27 


Figure 3-8. Depth difference comparison displaying the sediment deposits formed during 
the 1991-92 disposal season. Gray shading represents sediment placed prior to 
mid-December 1991. Yellow shading represents sediment deposited from mid- 
December to mid-January 1992. It is likely that many of the smaller areas of 
apparent accumulation surrounding the central deposit are the result of survey 
artifacts and are considered artificial. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


SAIC August 1992 vs. SAIC June 1991 Bathymetry 
Total Accumulation of Dredged Material 
over the Dow/Stonington Disposal Mound 


NL-Il] 
41° 16.300°N Su rvey 


Artifact 


41° 16.200°N 


41° 16.100°N 


72° 04.600°W 72°04.500;W 72°04.400W 72°04.300W 72° 04.200W 


NLDS 
Mound Height in meters 
NAD 27 


S| 
Om 100m 200 m 


Figure 3-9. Bathymetric contour plot of the depth difference between the SAIC August 
1992 and SAIC June 1991 surveys showing total accumulation of dredged 
material within the 500 m x 670 m analysis area, 0.2 m contour interval 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


55 
3.1.2.1 August 1992 Survey 


REMOTS® photographs detected recently deposited dredged material extending 
400 m south, and 500 m southeast of the survey center (Figure 3-10). The majority of the 
material deposited in close proximity to the D/S buoy was composed of black silty sand 
with a varying silt-clay fraction. Dredged material layers with chaotic sedimentary fabrics, 
anomalous grain size distributions, and low optical reflectance were presumed to be 
recently deposited or “fresh” (1991-1992 disposal season) dredged material. Boundaries 
for the distribution of the fresh dredged material were determined by mapping the spread 
of the darker NDA-91 and D/S material relative to the lighter and biologically re-worked, 
historic dredged material of the inactive NL-III, NL-88, and NL-85 mounds (Figure 3-11). 


Differentiation between unsuitable dredged material and cap material through 
REMOTS® photography was difficult due to the similar lithology of the Dow Chemical 
sediments. However, a layer of high optical reflectance fine sand originating from the 
material deposited at the NDA-91 buoy was visible at stations extending to 100 m north, 
400 m south, 400 m west, and 500 m east of the survey center (Figure 3-12). The depth 
of the overlying sand varied from 1.27 cm to 7.03 cm at stations 100N and the grid center, 
respectively. 


At peripheral portions of the survey, there was a noticeable lack of fine sand at 
stations 300SE through 500SE and all the ESE stations, as well as stations 200N, 400N, 
500S, 5OOSSE, 600E, 200NE, and 100NE (Figure 3-10). The sediment profiles of these 
stations consisted of thin layers of reworked dredged material over black silt (Figure 3-13). 
The majority of REMOTS® survey stations had layers of fresh or historic dredged material 
thicker than the penetrating depth of the REMOTS® camera. The detection of ambient 
sediments was not anticipated based upon the location of the REMOTS® grid relative to the 
historic NLDS disposal mounds. 


The major modal grain size over the disposal site ranged from granule/coarse sand 
(-1.0 phi) to very fine silt and clay sized particles (phi sizes >4; Figure 3-14). The 
coarsest sediment, consisting of very coarse and coarse sands, was located at the survey 
center, and stations within 300 m south and 100 m east (Table 3-1). As expected, 
REMOTS® camera prism penetration depth was lowest at those stations with a surface 
sediment layer consisting of coarser grained sands, granules, and shell. 


Silt-clay (>4 phi) was the dominant grain size major mode at 17 of the 41 
REMOTSS® stations occupied. These stations typically showed a distinct stratigraphy in 
which a surface layer of medium and fine sand (1-2 phi) was overlying very fine silts and 
clay (24 phi; Figure 3-14). The most frequently observed sediment was very fine sand 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


56 


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57 


Sediment Composition as detected with 
REMOTS® Sediment-Profile Photography 


41° 16.500°N 


41° 16.250°N 


SS 


\ 
~~ 
‘ 


ir 
pad. Lhe 
eh 


\ / {~~ SRB 
/ Sa Cee \ 

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Su 


. SS Zon ON 
SUL OS Survey Attitact a 


41° 16.000'N 


72 05.000°W 72°04.750W 72°04.500W 72°04.250°W 72° 04.000 W 


Sediment Composition 
FS - Fine Sand 

MS - Medium Sand 

CS - Coarse Sand 

SSt - Sandy Silt 

BSt - Black Silt 


Disposal Buoy 
Location 


Material 


Figure 3-10. Distribution map of surface sediment type over fresh and/or historic dredged 
material in the vicinity of the new NL-91 and D/S mound at NLDS 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


58 


Extent of Disposal Mound Aprons 
Based on REMOTS® Sediment-Profile Photography 


== = Cen eee) a 
oes Survey oe WW ( : = 
ia dy ya) cay ZZ NOS \ oa 
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WSN LLL = SF OE Survey beitect 


72° 05.000°'W 3=72°04.750W 72°04.500W 72°04.250W 72° 04.000°;W 


Figure 3-11. Countour lines based on sediment stratigraphy as detected with REMOTS® 
sediment-profile photography 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


60 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


61 


Major Modal Grain Size as detected with 
REMOTS® Sediment-Profile Photography 


——— = Z 
= ‘ = \ <S8) ° AN 
ee 
ea SL _i{ K \ 


41° 16.500'°N 


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oa >4.. W ea ; 
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——Bretiged Ntatérial 
(Black SiIty\ \_/ 


ee 


41° 16.000°N 


Disposal Buoy 
Location 


A 
Major Modal 
Grain Size (phi) 


Figure 3-14. Spatial distribution of major modal grain size for the 1992 REMOTS® 
sediment-profile photography stations over the NL-91 and D/S mound 
complex 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


62 


(3-4 phi), with many replicate images displaying small pebbles and recently dredged shells 
within a sandy matrix. These sediments were found extending out to 400 m west, 500 m 
east and south, and 200 m southwest of the NL-91 center. Isolated pockets of fine sand 
were found 300 m north, as well as 600 m south and 600 m southeast (Figure 3-14). 
Station 400S, lying on a relatively steep bathymetric slope, displayed evidence of a harder 
bottom with shell, pebble, and hydrozoan growth at the sediment water interface (Figure 3- 
5). 


Within NLDS, mean boundary roughness values ranged from 0.4 cm to 3.1 cm. 
Two stations on the mound flanks, 1|OONW and 100SE, showed the highest roughness 
values of 2.6 cm and 3.1 cm (Table 3-1). Seventy-eight percent of the stations at the 
disposal site were classified as having a biological boundary roughness, while 22 percent 
had a physical boundary roughness. Ninety-four percent of the reference stations had a 
biological boundary roughness while six percent were physical in nature. 


The mean apparent RPD depths at NLDS ranged from 0.3 cm at Stations 5OOSE 
and 600ESE to 3.7 cm at Station 200NW with a majority (33%) of stations exhibiting RPD 
depths within the 1.5 to 2.0 cm range (Figure 3-16; Table 3-1). No evidence of a redox 
rebound layer (recent reduction in the depth of oxidized sediments) was detected in any 
REMOTS® image collected during the 1992 survey over the NL-91 and D/S mound 
complex. 


In general, the area surrounding the D/S mound showed strong signs of benthic 
community recovery with a diverse population of Stages I, II, and III assemblages (Figure 
3-17). Twenty-five of the forty-one stations sampled displayed some combination of Stage 
I, Il, or III assemblages (Table 3-1). Eight stations displayed healthy Stage I populations 
progressing to Stage II. Stage II was denoted by the presence of distinct tubes of the 
amphipod Ampelisca sp. at the sediment surface (Figure 3-18). Three stations (7%) 
exhibited Stage II individuals colonizing the surface sediment while Stage III assemblages 
were actively feeding in the layers below the sediment-water interface. Finally, six 
stations had representatives from all three end-member assemblages present in the 
REMOTS® photographs. 


Eight stations (20%), including the survey center, had Stage I individuals inhabiting 
the sediments over a population of Stage III organisms (Figure 3-17). Apparently, by 
occupying the sub-surface sediment layers, Stage III individuals (deposit feeders) were able 
to survive a modest disposal event and migrate up through the thin layer (0.2 m to 0.3 m) 
of newly deposited sediment. Fifteen of the remaining REMOTS® stations sampled 
possessed an exclusive population of Stage I (27%) or Stage II (10%) individuals. 
Exclusive Stage I populations were found at eleven stations. Stations 200 m south and 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


64 


Apparent RPD Depth as detected with 
REMOTS® Sediment-Profile Photography 


/ 


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e Disposal Buoy 
Location 


A 
RPD 


Figure 3-16. Spatial distribution of Redox Potential Discontinuity depths for the 1992 
REMOTS8® stations on the disposal mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


65 


Successional Stage as detected with 
REMOTS® Sediment-Profile Photography 


L So C @ AR sy ( we \ 2 
— Survey rAritaet \\ \ 


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@ Disposal Buoy 
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Successional Stage 


Figure 3-17. Spatial distribution map of successional stage status for the NL-91 and D/S 
mound complex 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


67 


200 m, 300 m, and 400 m southeast of the survey center were inhabited solely by Stage II 
assemblages. One station (300W) produced no benthic infauna data due to shallow camera 
penetration depths. Because of the diversity in benthic infaunal recolonization status of the 
disposal mound and the widespread presence of Stage II organisms, the overall 
successional stage of the disposal mound can be characterized as a solid Stage II population 
advancing to Stage III. 


Based in part on the relatively advanced successional status and moderate RPD 
depths, the median OSI values over the disposal site ranged from +2.0 to +8.0 (Figure 3- 
19; Table 3-1). The higher OSI values were found on the perimeter of the REMOTS® 
sampling grid and were randomly distributed. No methane or low DO conditions were 
observed in any of the replicate images. __ 


See 222 August 1995 Survey 


The August 1995 REMOTS® sediment-profile survey at the NL-91 and D/S mound 
complex was used to map the aerial extent of dredged material and determine benthic 
recolonization levels relative to the 1992 findings. The REMOTS® sampling grid occupied 
in 1995 was reduced to a modified 13-station cross grid and shifted south-southeast relative 
to the 1992 grid (Figures 2-4A and 2-4B). The center point was based on the D/S buoy 
position, and station placement was designed to cover the two lobate sections of the NL-91 
and D/S mound complex. 


Recently deposited dredged material was detected in nine of the thirteen REMOTS® 
sediment-profile stations across the NL-91 and D/S mound complex. Dredged material 
thickness was greater than camera penetration along the east-west transect, as well as at 
stations 100S and 100N (Figure 3-20). The surface sediments at Stations 300N, 200N, 
100W, and 200S appear to have been reworked significantly since 1992, losing the typical 
characteristics of recently deposited sediments. As a result, these stations were classified 
as being composed of historic dredged material. The average penetration depths ranged 
from 4.5 cm to 15.1 cm. The stations with the shallowest camera penetration (< 10 cm) 
displayed sediment with a higher sand component. Most of the stations with camera 
penetration greater than 10 cm had dredged material greater than penetration. 


The major modal grain size at eight of thirteen stations over the NL-91 and D/S mound 
complex was classified as 4 to 3 phi (very fine sand; Table 3-2). Three stations (100E, 400E, 
and 300N) were composed entirely of fine-grained sediments (>4 phi; silt/clay). The two 
stations with coarser grained sediment were 200W (3 to 2 phi, fine sand) and 200S (<-1 phi, 
granules and pebbles; Figure 3-21). A stratigraphic pattern consisting of a surface layer of 
very fine sand overlaying mud at depth was observed at all stations except 100W, 100N, 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


69 


OSI values as calculated 
from 1992 REMOTS® Images 


\. 


SSeS Saye nract a 


Fae 
at a a 
y) / 


41° 16.500°N 


41° 16.250°'N-+ 


. AEE si \ 

Se ~ Recefitlhy Deposi ited 
-—~_\ ~~ Dretiged Material 
— Ta ee Silt) 


72° 05.000°W 72°04.750W 72°04.500°W 72°04.250°W 72° 04.000°W 


Disposal Buoy 
Location 


A 
Os! 


Figure 3-19. Distribution map of Organism Sediment Index (OSI) values over the NL-91 
and D/S mound complex as detected in the August 1992 REMOTS® 
sediment-profile photography survey 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


70 


1991 vs. 1992 Depth Difference 


Mean Dredged Material Thickness as detected 
by REMOTS® Sediment-Profile Photography 


41° 16.4007 


41° 16.300'N 


41° 16.200'N 


41° 16.100° 


Recently Deposited 
Dredged Material 
(Black Silt) 


AL? AGOGO RS ee Rd Nett cre coe te keen ob 


72° 04.600°W 72° 04500°W 72° 04 400°W 72° 04.300'°W 72° 04.200;W 72° 04.100'W 


NLDS 
Mound Height in meters 
NAD 27 


a 
Om 100m 200m 


ncm - Mean Dredged Material thickness 


CP - DM thickness > REMOTS® 
Camera Penetration 


Figure 3-20. Mean dredged material thickness at 1995 REMOTS® sediment-profile 
photography stations over the NL-91 and D/S mound complex, relative to the 
August 1992 detectable margins 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


71 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


72 


200N, and 300N, where the layer of sand may have been incorporated into the sediment or 
was obscured by decaying amphipod tube mats. 


The range of replicate-averaged boundary roughness values over the 1995 REMOTS® 
stations ranged from 0.7 cm to 4.8 cm, with the highest values at 200S (4.8 cm) caused by the 
presence of pebbles and shell lag (Table 3-2). Boundary roughness in the majority of the 
replicate images that were analyzed was less than 2 cm and often attributed to biogenic 
activity. 


Replicate averaged RPD values over the NL-91 and D/S mound complex ranged from 
nearly 1.0 cm to 3.5 cm, with an overall average of 2.2 cm (Figure 3-22; Table 3-2). The 
shallowest RPDs were concentrated along the southern (100S, 200S) and eastern (100E, 300E, — 
400E, 500E) legs of the sample grid. The center station (CTR) displayed a relatively deep 
RPD of 3.0 cm, however, Station 300N demonstrated the deepest replicate averaged RPD 
value of 3.48 cm. 


The presence of an RPD rebound layer was noted at several stations (CTR, 100S, 
100E, 200E, 300E, 400E, and 500E). This rebound layer is the result of the RPD becoming 
shallower within the surface sediment several days to weeks before the REMOTS® sediment- 
profile photography survey. The reduction in RPD depth is often related to a decrease in 
bottom water DO concentrations, in association with a seasonal increase in oxygen demand 
(biological and chemical) within the surface sediments. 


Stage III benthic communities were observed in at least one replicate photograph 
from all REMOTS® stations over the NL-91 and D/S mound complex. The dominant 
biological assemblage was Stage II on III as the August 1995 survey results indicated by 
the presence of decaying or disturbed amphipod tube mats (Figure 3-23A). At Stations 
300E, 300N, and 400E one or two replicates contained only evidence of Stage II organisms 
(amphipods). Stage I on III was noted in replicate images from stations nearer the center 
of the mound (100E) and historic dredged material off the disposal mound (200N, 100W, 
200S; Figures 3-23B and 3-24). 


Organism Sediment Index values at the NL-91 and D/S mound complex ranged 
‘from +6 to +10, with an overall average of +8.0 (Figure 3-22; Table 3-2). The lowest 
OSI value (+6) was calculated for Station 400E primarily due to a shallow RPD depth in 
one replicate image, although the area surrounding 400E is still considered quite healthy. 
The highest OSI of +10 was generated for Station 200E, reflecting a Stage II on III 
successional stage and deep RPD depths in all three replicate images. There was no visible 
evidence of low apparent DO levels in the sediment at any of the stations, although 
methane gas bubbles were observed in one replicate image at Station 100S. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


1991 vs. 1992 Depth Difference 
1995 RPD and OSI values 


41° 16.400°N 


41° 16.300°N 


41° 16.200°N 


SS ik 
hoy \\, Ms 1.86 
QO0E d 49 300) gat 500EA 
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Dredged Material 
(Black Silt) 


72° 04.600°W 72° 04.500°W 72° 04.400°W 72° 04.300°;W 72° 04.200°W 72° 04.100 W 


RPD 


Station A 
OSI 


Mound Height in meters 


NAD 27 


Om 100m 200m 


Figure 3-22. Spatial distribution of mean redox potential discontinuity depths over the 
NL-91 and D/S mound complex as detected by the 1995 REMOTS® 


sediment-profile photography survey, relative to the 1992 detectable margins 


of the mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


74 


pod 
Tube Mat. 
Stage Il) 


} 
U 


fi 
( 
\ 


Amph 


oF 
CTC 
® 
® 
LL ‘ 
ie 4m 


(B) 


Figure 3-23. REMOTS photographs showing Stage II on Stage III at (A) CTR and Stage I on III at (B) 200N on the 


(A) 


D/S mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


75 


1991 vs. 1992 Depth Difference 
Successional Stage 


41° 16.400°N 
41° 16.300°N 


41° 16.200'N x 
200A 100WA_ CYR AO” ZOE 2008 A 400E A, 
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i 


500E A 
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Recently Deposited 
Dredged Material 
(Black Silt) 


41° 16.000'N- SY Cea) -Gucron ena a sane 


72 04.600°W 72° 04.500°W 72°04.400°W 72° 04.300°W 72° 04.200°W 72° 04.100 W 


‘StationA NLDS 
Successional Stage Mound Height in meters 
ee eS i NAD 27 
a 
Om 100m_200m_ 


Figure 3-24. Spatial distribution map of successional stage status for the August 1995 
REMOTS® sediment-profile photography stations occupied over the NL-91 
and D/S mound complex, relative to the detectable margins of the mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


76 


Sae23 September 1997 Survey 


In September 1997, a second follow-up REMOTS® sediment profile photography 
survey was conducted to document the continued benthic recovery over the NL-91 and D/S 
mound complex. Station locations were based on the same modified 13-station grid 
occupied in August 1995 (Figure 2-4B). 


Recent and/or historic dredged material was both detected and greater than the 
penetration of the camera prism in all replicates, with averaged thickness ranging from 6.8 
to 18.2 cm (overall average of 14.2 cm). The replicate-averaged mean camera penetration 
over the mound was somewhat deeper than the previous survey. As a result, the images 
displayed more layering of material relative to the 1995 survey, with fine sand over 
reworked dredged material, over fine organic silt at several stations (Figure 3-25A). 


As in previous years, fine to very fine sand characterized the sediment over the NL- 
91 and D/S mound complex (Table 3-3). The major modal grain size was 4 to 3 phi (very 
fine sand) in most photographs, with a mix of silt-clay in nine of the 42 images. Station 
200W displayed medium-grained sand (2 phi), along with shell fragments and remnants of 
decaying amphipod tube mats (Figure 3-25B). Surface sand overlying fine-grained 
sediment (sand-over-mud stratigraphy) was noted at every station over the disposal mound. 
Granule and pebble sized grains were noted at the sediment-water interface in multiple 
replicates collected at Stations 100S and 200S (Figure 3-26A & B). 


The replicate-averaged boundary roughness values ranged from 0.6 to 2.2 cm 
(Table 3-3). In contrast to samples collected in 1995, boundary roughness was primarily 
attributed to physical forces, although some surface disturbances were indeterminant or 
caused by biogenic activity. Evidence of physical disturbance of the surface included 
abundant disturbed amphipod tube mats, surface scour, and shell lag deposits. Individual 
replicates at Stations 200N (a) and 300N (b and c) showed evidence of winnowing of fines 
at the sediment surface. 


The replicate-averaged apparent RPD ranged from 1.0 to 6.7 cm (4.47 average; 
Figure 3-27). Stations 200E, 400E, and 300N had a visible redox rebound layer ranging 
from 5 cm to 10 cm below the sediment-water interface, indicating a recent reduction in the 
RPD depth. 


The successional status was advanced, showing healthy Stage II or Stage II on III 
communities inhabiting the sediments of the NL-91 and D/S mound complex (Figure 3-28). 
Some of the photographs were identified as Stage I to II due to the presence of disturbed and 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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NL-91 and D/S Mound Complex 
1997 RPD and OSI Values 


woow’s EAs s 0, S00E A, A -500E 
4 a P XN - > ) 


9 


Sand _ 


over 
Black silt 
Recently Deposited 
Dredged Material 
(Black Silt) 


Overall Average A 
8. 


NLDS 
Mound Height in meters 


Figure 3-27. Distribution map of mean RPD (red) and median OSI (blue) values calculated 
for the 1997 survey over the NL-91 and D/S mound complex, relative to the 
1992 disposal mound footprint 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


&1 


NL-91 and D/S Mound Complex 
1997 Successional Stage 


WSS 


ene 


200WA 100WA CTR =p HE tp EN 
AA M 1, UJ W AMA AS ‘Ouay he "l, MS 


BS i) 
Sey eS 
over 
Black silt > 
=> Recently Deposited 
Dredged Material 
(Black Silt) 


Mound Height in meters 


_200 m__ 


Figure 3-28. Distribution map of successional stage calculated for the 1997 survey over the 
NL-91 and D/S mound complex, relative to the 1992 disposal mound footprint 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


82 


decaying amphipod (Ampelisca) tube mats. Stage III organisms were present in 19 of the 42 
replicates and represented at all stations except 300N and 200E. 


The median OSI values ranged from +2 to +11, with an overall average of +8.6 for 
the entire NL-91 and D/S mound complex (Figure 3-27). The only station displaying a 
median OSI value of < +6 (indicating continued disturbance) was Station 300N (OSI +2) 
primarily due to the lack of Stage III organisms and shallow RPD depths. Conditions 
indicative of low bottom water DO concentrations were observed in sediments at three 
stations. One or more of the replicate images collected from stations 100E, 300E, and 300N 
displayed shallow RPD depths and dark, sulfidic sediment located at or near the sediment- 
water interface, suggesting a recent reduction in available oxygen. However, the presence 
of Stage III individuals and moderate to deep RPD depths in other replicate images obtained 
from stations 100E and 300E contributed to high OSI values, +10 and +8, respectively. 
The highest OSI (+11) was calculated for Stations 100N, 100W, and 200S, reflecting a 
Stage II on III successional stage and deep RPD depths in all three replicate images collected 
for each station. 


3.1.2.4 July 1998 Survey 


REMOTS® results from the 1998 survey over the NL-91 and D/S mound complex 
were used to document the placement of supplemental cap material during the 1997-1998 
disposal season. In addition, REMOTS® sediment-profile photography was used to 
evaluate the benthic recolonization over the center of the disposal mound and continue 
assessment of the overall recovery of the dredged material deposit. The 13-station 
sampling grid established in 1995 was reoccupied, and three replicate photographs were 
collected at each station. 


Dredged material was detected in layers having a thickness which exceeded the 
camera prism penetration depth at all stations, with minimum dredged material layer 
thickness ranging from 6.4 cm to 14.6 cm (overall average of 11.9 cm). Apparent new 
dredged material was observed over the northern and central areas of the original NL-91 
deposit (Figure 3-29). The thickness of new material was measured in the REMOTS® 
photographs, where fresh material over older deposits was clearly evident (Figure 3-30). 


The DAMOS Capping model was used to calculate the footprint of the 1997-98 
sediment deposit on the NLDS seafloor and forecast where new material would 
accumulate. Based on reported barge volumes and disposal positions, the model predicted 
the footprint would consist of two overlapping deposits (represented as circles on Figure 3- 
30) with diameters of 400 m (5,650 m3 reported volume) and 300 m (1,200 m3 reported 
volume). The circles encompass the majority of the REMOTS® sediment-profile 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


& 


B. D/S CTR 


A. D/S 100N 
15 cm 


Figure 3-29. Evidence of recently disposed capping dredged material (CDM) over the NL-91 and D/S Mound Complex 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


photography stations that display accumulation of new material. Thin layers of material 
were observed at two stations falling outside the predicted area of accumulation (Stations 
300N and 100S). The presence of this material at these stations suggests a thin layer on 
the margins of the new deposit spread 25 m to 50 m beyond the radius predicted by the 
model. 


The replicate-averaged mean camera penetration at the NL-91 and D/S mound 
complex ranged from 6.5 to 15.8 cm, with an overall average of 12.4 cm (Table 3-4). As 
in previous surveys, fine to very fine sand characterized the surface sediments over the 
mound. The major modal grain size was 4 to 3 phi (very fine sand) in most photographs. 
Surface sand overlying fine-grained sediment (sand-over-mud stratigraphy) was noted over 
the majority of the NL-91 and D/S mound complex. Sand, pebbles and hydrozoans were 
noted once again at Station 200S, consistent with the findings of prior surveys 
(Figure 3-31). 


The replicate-averaged boundary roughness values ranged from 1.0 to 3.2 cm, with 
an average of 1.5 cm (Table 3-4). Boundary roughness was attributed to a combination of 
physical and biogenic forces. Evidence of physical disturbance and possible winnowing of 
the surface included abundant disturbed amphipod tube mats, surface scour, and shell lag 
deposits. 


The apparent redox potential discontinuity (RPD) was measured on each photograph 
to determine the depth of penetration of oxygen into the sediment (Figure 3-32; Table 3-4). 
The replicate-averaged apparent RPD depths over the NL-91 and D/S mound complex 
ranged from 1.2 to 6.1 cm (3.6 average). No stations over the mound displayed any visible 
redox rebound layers. 


The successional status was advanced, showing healthy Stage II or Stage II on III 
communities inhabiting the sediments of the disposal mound. Some stations showed a 
slight decline in successional stage relative to data collected in 1997. The reference area 
showed a similar decline in comparisons between the 1997 and 1998 dataset (Table 3-12). 
Stage III organisms were present in 15 of the 39 replicates distributed among eight stations 
(Figure 3-33). The remainder of the July 1998 photographs were classified as Stage I, or 
Stage I to II if amphipod (Ampelisca) tube mats were present. 


Median OSI values ranged from +3.0 to +11.0, with an overall average of +7.5 
for the NL-91 and D/S mound complex (Figure 3-32; Table 3-4). The only median OSI 
values of < +6.0 (indicating continued disturbance) occurred at Stations 300E and 400E. 
The low OSI values were due in part to shallow RPDs, disturbed amphipod tube mats and 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


66 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


88 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


90 


lack of clear evidence of recent Stage III activity. There were no indications of low DO 
conditions within the surface sediments, and no methane detected. 


3.1.3 August 1992 Dissolved Oxygen Measurements 


Near-bottom (approximately 1 m above the bottom) dissolved oxygen concentrations 
sampled on 7 August 1992 at the disposal site and the three reference areas ranged from 
7.3 mg/L to 7.8 mg/L. Dissolved oxygen concentrations in the top two meters of the 
water column were slightly higher than those measured in near-bottom waters, ranging 
from 7.7 mg/L to 8.1 mg/L. The concentrations of dissolved oxygen were uniformly 
distributed throughout the disposal site and reference areas. These concentrations are not 
limiting to benthic organisms (Tyson and Pearson 1991). 


3.2 USCGA Disposal Mound 
3.2.1 Bathymetry 


The USCGA dredged material disposal mound was formed when 124,000 m? of 
dredged material from the Eagle Pier project at the U.S. Coast Guard Academy was 
released at NLDS between the historic NL-TR and NL-RELIC disposal mounds. A 
1600 m x 1600 m precision bathymetric survey was conducted in August 1995 to 
document changes in seafloor topography relative to the survey performed in August 1992 
(Figures 3-34 and 3-35). 


A 0.86 km? area surrounding the USCGA buoy was selected as an area of detailed 
analysis to facilitate accurate depth difference calculations. The material dredged from the 
US Coast Guard Academy was sequentially deposited, forming an irregularly shaped 
sediment mound 420 m wide and 1 m high at the apex (Figure 3-36). There was a 0.5 m 
high ridge of sediment that extended approximately 320 m southwest from the center of the 
mound. Another lobe of sediment extended 350 m from the mound center to the north- 
northeast and was 190 m wide. 


3.2.2 REMOTS® Sediment-Profile Photography 
A 13-station REMOTS® sediment-profile photography survey was completed over 
the USCGA mound in August 1995 to document the benthic recolonization status. A 


complete set of REMOTS® image analysis results for the August 1995 survey of the 
USCGA mound is presented in Appendix B. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


9] 


August 1995 Bathymetry 
1600 m X 1600 m Survey Area 


41° 16.500° N 


41° 16.250° N 


41° 16.000° N7 


72° 05.000° W 72°04.750°W 72°04.500°W 72° 04.250°W 72°04.000° W 


NLDS 
Corrected to MLLW 
Depth in Meters 


NAD 27 
SS | 
Om 400 m 


Figure 3-34. Bathymetric chart of the 1600 m < 1600 m survey area, August 1995 results, 
0.5 m contour interval 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


Depth Difference 
August 1992 vs. August 1995 


41° 16.500°N 


41° 16.250°N 


41° 16.000°N 


72° 05.000 W 72°04.750W 72°04.500W #£72°04.250°W 72° 04.000°W 


NLDS 
Depth in meters 
Mound Height in meters 


NAD 27 
EE Zz 


Om 400 m 


Figure 3-35. Depth difference plot displaying the location of the disposal mounds created 
since the August 1992 survey (USCGA, NL-94, and NL-92) relative to historic 


disposal mounds 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


93 


Depth Difference 


41° 16.600° N: 


41° 16.500° N 


41° 16.400" 


41° 16.300" 


41° 16.200" N 


72° 04.400° W 72° 04.200° W 72° 04.000° W 


NLDS 

USCGA Mound 

Mound Height in Meters 

NAD 27 

SS 
Om 400 m 


Figure 3-36. USCGA mound, depth difference from August 1992 to August 1995, 0.2 m 
contour interval 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


At ten out of thirteen REMOTS® stations, the dredged material thickness exceeded 
the camera prism penetration depth in all of the replicate photographs (Table 3-5). Along 
the southeast stations, dredged material thickness either exceeded prism penetration depth 
or reached a maximum of 13.24 cm (100SE) and 9.23 cm (SOSE). At Station 150E, 
dredged material thickness was less than penetration depth and averaged 12.8 cm. 


The mean prism penetration depths ranged from 12.2 cm to 15.9 cm and averaged 
14.0 cm. These values are consistent with the presence of fine-grained material at most of 
the stations. Most REMOTS® photographs taken at the USCGA mound showed 
homogeneous silt-clay (>4 phi). Very fine sand (4 to 3 phi) was noted in two replicates at 
100S, and at one replicate each at LOOW, 50N, 50S, and CTR. Sand-over-mud layering was 
noted at all stations. 


The boundary roughness values for the USCGA mound sediment-profile photographs 
were low (ranging from 0.6 to 1.6 cm with an average of 1.0 cm), indicating relatively little 
surface disturbance. Boundary roughness was due to biogenic activity in all but one 
photograph. In one of the replicate photographs at Station 100E, the boundary roughness 
was due to the presence of shell lag at the sediment surface. 


Station-averaged apparent RPD depths ranged from 0.8 cm to 7.6 cm at the 
USCGA mound (Figure 3-37; Table 3-5). The average RPD value for the mound was 
2.69 cm, with no geographic pattern to the distribution of values. The RPD values for two 
out of three replicate photographs taken at the center station (CTR) were unmeasurable due 
to camera artifacts. These two photographs were noted as being potentially hypoxic, along 
with one replicate image at Station 50S and one replicate at Station 100S. 


A Stage II biological assemblage dominated the USCGA mound. The presence of 
Stage III organisms (primarily Stage II on III) was noted in three of the replicate images at 
Station 5OW, two replicates at Stations SOE and 100E, and one replicate at Stations 100SE 
and 100W (Figure 3-38). Many of the photographs showed dense aggregations of 
amphipod tubes, or disturbed and decaying tube mats. Due to the presence of Stage II or 
Stage II on III communities, the USCGA mound at the time of the August 1995 survey 
appeared to be recovering more rapidly than predicted for recently deposited dredged 
material (Germano et al. 1994). 


Median OSI values at USCGA mound REMOTS® stations ranged from +3 to +9, 
with an overall average of +6.4 (Table 3-5). The lowest OSI was at the CTR station 
(+3), primarily due to low dissolved oxygen conditions and lack of Stage III organisms, 
although only one CTR photograph had a measurable OSI due to camera artifacts on the 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


95 


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96 


USCGA Mound 
1995 RPD and OSI Values 


41° 16.600" 


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5 -88 3 2.48 0. 821.9 
ONLY SL Wey 


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2.69 
Overall Average A 
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72° 04.400° W 72° 04.200° W 72° 04.000° W 


RPD 


Station A 
OSI 


Figure 3-37. Distribution map of mean RPD and median OSI values calculated for the 1995 
survey over the USCGA Mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


97 


USCGA Mound 
1995 Successional Stage 


41° 16.600° N 


41° 16.500° N 


8% ON 
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Margins of the Mound 


41° 16.200° N 


72° 04.400° W 72° 04.200° W 72° 04.000° W 


Station A 
Successional Stage 


Figure 3-38. Distribution map of successional stage calculated for the 1995 survey over the 
USCGA Mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


98 


other replicates. Two other USCGA stations (150S and 50S) also had evidence of low 
apparent dissolved oxygen and the absence of Stage III organisms, resulting in lower OSI 
values. A median value of +5 was derived for Station 150S and +6 was calculated for 
Station 50S. Sediment methane was noted at one replicate image at Station 50W; however, 
the presence of Stage III organisms buffered the effect on the OSI for that station. 


3.3. NL-94 Disposal Mound 
3.3.1 Bathymetry 


The NL-94 mound was formed when 37,000 m3 of material from the U.S. Navy 
Submarine Base was released at the NDA 94 buoy. The disposal activity was concentrated 
around the NDA-94-1 buoy position. As a result, the August 1995 precision bathymetric 
survey was successful in detecting this small deposit (Figure 3-35). A 0.48 km? area of 
detailed analysis was selected around the active disposal point to conduct precision depth 
difference calculations. 


The deposition of material at the NDA-94-1 buoy resulted in the formation of a 
disposal mound approximately 125 m wide and 0.9 m high (Figure 3-39). A flat tongue of 
dredged material with a maximum height of 0.4 m extended 140 m southeast from the apex 
of the mound. This southeast tongue of the NL-94 mound abutted the historic NL-I mound 
(Figure 3-35). 


3.3.2 REMOTS® Sediment-Profile Photography 


A series of REMOTS® sediment-profile photographs were collected over the NL-94 
mound in August 1995 and September 1997 to document the lateral extent of dredged 
material within close proximity to the NDA-94-1 disposal buoy position, as well as assess 
the benthic recolonization status of the surficial sediments. A complete set of REMOTS® 
image analysis results for the NL-94 mound are presented in Appendix B. 


Siei45| August 1995 Survey 


The center station (CTR) and six surrounding stations (all within 50 m of the center) 
had dredged material, with the thickness of the dredged material layer at each station 
exceeding the penetration depth of the camera prism. Twelve of the fifteen REMOTS® 
stations had recently placed dredged material present, while three of the stations had either 
ambient sediment or historic dredged material. At Stations ISONW, 100SW, and 150SE, 
one or two of the replicate photographs displayed dredged material layer thickness greater 
than or equal to the penetration depth of the camera prism. At Stations 15ONW and 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


Depth Difference 


41° 16.400° N 


41° 16.300" N 


41° 16.200° N 


41° 16.100° N 


72° 05.000° W 72°04.900°W 72°04.800°W 72°04.700° W 72°04.600° W 


NLDS 

NL-94 Mound 

Mound Height in Meters 
NAD 27 
| 
Om 200 m 


Figure 3-39. NL-94 mound, depth difference from August 1992 to August 1995, 0.2m 
contour interval 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


100 


100SW, the remaining replicates indicated ambient sediment, while historic dredged 
material from the NL-I mound was detected at 150SE (Figure 3-40A&B). This resulted in 
mean dredged material thickness of 2.9 to 5.5 cm for these stations. At 100E, all 
replicates had dredged material over ambient sediment, for an average thickness of 5.3 cm. 
Ambient sediment was found in all replicates at stations 100 m west, northwest, and 
northeast of the center. 


The mean camera penetration depths for REMOTS® stations at the NL-94 mound 
ranged from 7.9 cm to 15.6 cm and averaged 11.85 cm. These values are consistent with 
the presence of fine-grained material at most of the stations (Figure 3-41). 


The major modal grain size was consistently classified as fine-grained silt-clay (>4 
phi) at the stations within 50 m of the center station and at Station 100SE. The remaining 
station replicates ranged from silt-clay (>4 phi) to very fine sand (3 to 4 phi; Table 3-6). 
Sand-over-mud layering was observed at the majority of the stations outside a 50 m radius 
from the center. 


Average boundary roughness values ranged from 0.6 cm to2.9cm. The 
distribution of boundary roughness values showed no spatial pattern. With the exception 
of three stations, boundary roughness over the NL-94 mound was attributed to biogenic 
activity. One replicate from Station 100E exhibited evidence of a scour lag feature, one 
replicate from Station 50NE showed a possible erosional boundary, and one replicate at 
50NW displayed a shell lag feature. 


Average RPD values at NL-94 stations ranged from 0.7 cm to 5.1 cm, with an 
average RPD value of 2.02 cm over the entire mound (Table 3-6). There was no apparent 
geographic pattern to the distribution of deep and shallow RPD depths (Figure 3-42). The 
shallowest RPD was measured at 50S (0.7 cm), and the deepest RPD was measured at 
5OSE (5.2 cm). 


Stage II and Stage II on III communities dominated the NL-94 mound. Stations 
100NE and 5ONW had Stage I present, as well as Stages II and III (Figure 3-43). Because 
these are advanced successional stages for an area recently impacted by dredged material, 
NL-94 appeared to have recovered rapidly relative to the normal progression of benthic 
recovery (Germano et al. 1994). 


Median OSI values ranged from +6 to +11 over the NL-94 mound, with an overall 
average of +7.4 (Table 3-6). In general, an OSI of less than +6 indicates areas of benthic 
disturbance (Rhoads and Germano 1982). The highest OSI value of +11.0 was detected at 
Station 5OSE, where there was Stage II on III and a mean RPD thickness of 5.1 cm 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


101 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


Mean Dredged Material Thickness 


41° 16.400° N 


41° 16.300° N 


41° 16.200 N 


41° 16.100° N 


72° 05.000’ W 72° 04.900°W 72° 04.800° W 72° 04.700°W 72° 04.600° W 


— 
ncm- Mean Dredged Material Thickness NLDS 
: NL-94 Mound 
CP -DM Thickness > REMOTS® : . 
: Mound Height in Meters 
Camera Penetration NAD 27 
| 
Om 200 m 


Figure 3-41. Mean dredged material thickness at the 1995 REMOTS® sediment-profile 
photography stations over the NL-94 mound 
Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


104 


NL-94 Mound 
1995 RPD and OSI Values 


41° 16.400° N 


41° 16.300’ N 1 ae 
150NW 7 2.48 


100NW Ay 
2.1 


41° 16.200° N 


Acoustically Detectable 
Margins of the Mound 
2.02 


Overall Average A 
41° 16.100° N 7.43 


72° 05.000° W 72° 04.800° W 72° 04.600° W 


RPD 
Station & 


OSI 


Figure 3-42. Distribution map of mean RPD and median OSI values calculated for the 1995 
survey over the NL-94 Mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


105 


NL-94 Mound 
1995 Successional Stage 


41° 16.400° N 


41° 16.300° N 


41° 16.200° N 


Acoustically Detectable 
Margins of the Mound 


41° 16.100° N 


72° 05.000° W 72° 04.800° W 72° 04.600° W 


Station & 


Successional Stage 


Figure 3-43. Distribution map of successional stage calculated for the 1995 survey over the 
NL-94 Mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


106 


(Figure 3-42). One replicate at 5SONE showed evidence of low apparent DO, but no 
methane was evident in any replicate. 


BS September 1997 Survey 


In September 1996, the NDA-96 buoy was deployed approximately 80 m west of the 
NL-94 mound. A total volume of 3,400 m3 of supplemental cap material was placed over 
the mound at the buoy, adding to the pre-existing mound (Figures 1-3 and 3-44). In 
September 1997, 15 stations at the NL-94 mound were sampled with the REMOTS® 
sediment-profile camera, duplicating the survey conducted in 1995. Three or more replicate 
images were obtained at each station to document the placement of the new material and 
monitor benthic recovery. 


Dredged material was detected in all replicates at all stations. The measured 
thickness of dredged material ranged from 6.0 to 16.2 cm (> 13.5 cm average; Table 3-10). 
Dredged material layer thickness was equal to, or exceeded, the camera penetration in all 
replicates images collected in September 1997. In 1995, dredged material was not detected 
at stations LOONE, 1OONW, and 100W. Thin layers of dredged material over ambient 
sediments were noted at Stations 100SE, 100SW, and 1ISONW. The presence of dredged 
material greater than camera penetration at these stations during the 1997 survey was 
consistent with the placement of material at the NDA 96 buoy (Figure 3-44). 


The REMOTS® images characterized the sediment as a mix of fine to very fine sand 
(3 to 4 phi) with some variability (Table 3-7). As a result, the major modal grain size for 
the entire mound was 4 to 3 phi (very fine sand) at most stations. Stations 1OONW, 100W, 
50NW, and 50SE displayed a finer grain size, with a mix of silt-clay predominating (>4 
phi). Coarser-grained sediment consisting of fine to medium sand (2 phi) occurred in at 
least one replicate at Stations CTR, 5OSW, and 100E. Surface sand overlying fine-grained 
sediment (sand-over-mud stratigraphy) was noted in 28 of the 46 photographs collected. 


The boundary roughness values for the NL-94 mound ranged from 0.6 to 4.2 cm, 
with an average of 1.4 cm (Table 3-7). Shell lag or disturbed amphipod tube mats were 
visible on the sediment surface within most replicate images. One replicate image at each 
of Stations 1OONE, 5ONE, and 100SW was identified as winnowed. Armoring of the 
sediment surface by shell lag (current scouring), visible in the images at Stations 150SE, 
50NW, 50S, and 100E, may protect the mound from further current-induced winnowing 
(Figure 3-45). In contrast to the 1995 survey results, boundary roughness was primarily 
attributed to physical forces, although some surface disturbances were indeterminate or 
caused by biogenic activity. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


107 


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3-45. REMOTS® images obta 


Figure 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


110 


The replicate-averaged apparent RPD ranged from 1.8 to 6.2 cm (4.3 cm average), 
with no apparent spatial pattern (Figure 3-46; Table 3-7). Six stations had a visible redox 
rebound ranging from 4 to 9 cm, suggesting a recent reduction in RPD depth. 


Similar to the 1995 data, the successional status was advanced, showing healthy 
Stage II or Stage II on III communities inhabiting the sediments of the NL-94 mound 
(Figure 3-47). Some of the photographs were identified as Stage I to II due to the presence 
of disturbed amphipod (Ampelisca) tube mats. Stage III organisms were present in half of 
the replicate images and 11 of the 15 stations. 


The median OSI ranged from +7 to +11, with an overall average of +8.3 (Figure 
3-46; Table 3-7). A replicate-averaged OSI of < +6 suggested a disturbed benthic habitat 
at Station SOSE. A number of replicates had indeterminant OSI values due to camera 
faceplate wiper smearing or artifacts on the sediment profile. The overall average OSI in 
1997 was slightly higher than that observed during the survey conducted in 1995 (+7.4), 
indicating a slight improvement in benthic conditions. 


3.4 Northern Region 
3.4.1 1997 Master Bathymetric Survey 


The 2100 X 2100 m precision bathymetric survey performed over the NLDS 
provided a new DGPS baseline to aid in the development of a Geographic Information 
System (GIS) database for the disposal site, as well as to facilitate comparisons with future 
project-specific surveys. This survey yielded a bathymetric chart of the 4.41 km? area 
with a minimum depth of 13.5 m over the NL-RELIC mound and a maximum depth of 
24.75 m approximately 100 m south of the disposal site boundary (Figure 3-48). A total 
of 11 dredged material disposal mounds were apparent within the confines of the disposal 
site, although many of them overlapped to form one larger feature. A vertically 
exaggerated, three-dimensional view of the NLDS displays the various dredged material 
deposits in contrast to the natural topography, indicating the presence of a central “bowl” 
surrounded by dredged material mounds (Figure 3-49). 


The overall topography of the NLDS slopes from a depth of less than 14 m in the 
Northern Region towards the south and southwest. A northwest-southeast oriented trough 
divides the area elevated by active dredged material disposal throughout the center of the 
site and the elevated area in the southwest corner (Figures 3-48 and 3-49). This ridge is in 
close proximity to the U.S. Coast Guard (USCG) special purposes buoy “NL.” The data 
collected as part of the July 1986 master bathymetry survey covered an area of the seafloor 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


I1l 


NL-94 Mound 
1997 RPD and OSI Values 


4.43, 
450NW a 6.15 


400NW ae 


1oow AZ 
Q NA 41 4. 
DA 96 @ 4) NA 


Acoustically Detectable 
Margins of the Mound 
4.28 
Overall Average A 
8.3 


RPD 
Station A 


OSI 


Figure 3-46. Distribution map of mean RPD and median OSI values calculated for the 1997 
survey over the NL-94 Mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


NL-94 Mound 
1997 Successional Stage 


Acoustically Detectable 
Margins of the Mound 


Station A 
Successional Stage 


NLDS 
EE OZ. 
Om 200 m 


Figure 3-47. Distribution map of successional stage calculated for the 1997 survey over 
the NL-94 Mound 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


113 


September 1997 Master Bathymetric Survey 


41° 16.750° N 


41° 16.500’ N-£ 


41° 16.250°N4 


41° 16.000° N 


41° 15.750° N 


72° 05.000° W 72° 04.500° W 72° 04.000° W 


NLDS 
Depth in meters 


NAD 83 


Figure 3-48. Bathymetric chart of New London Disposal Site (contour interval = 0.25 m) 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


September 1997 Bathymetry 


NLDS 


Depth in meters 
NAD 83 


Figure 3-49. Three-dimensional view of the bathymetry of NLDS (vertical exaggeration | 
37.25) 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


115 


approximately 1200 m to the southwest of the current disposal site boundaries 
(Figure 3-50). 


Depth difference comparisons between the 1986 and 1997 surveys (corrected to 
MLLW and NAD 83) show sizable accumulations of dredged material corresponding to the 
formation of several mounds, including the Seawolf (1995) NL-TR/USCGA (1989-90), 
and NL-88 (1988) mounds. There were no corresponding changes in depth between 1986 
and 1997 near the “NL” buoy (Figure 3-50). As a result, this ridge represents a natural 
geologic feature on the seafloor of eastern Long Island Sound. Survey artifacts were 
identified in the northern area of the disposal site along the east-west slope visible in 
Figure 3-50. The small patches of apparent accumulation in the southern portion of the 
disposal site also may be a result of “noise” from various bottom features. 


3.4.2 NLDS Northern Region 


The Northern Region of NLDS (Figure 2-7) was surveyed in September 1997 using 
precision bathymetry and REMOTS® photography to provide an adequate baseline for valid 
depth difference calculations and assessment of benthic conditions in future surveys. 


3.4.2.1 Bathymetry 


Depths in the Northern Region ranged from approximately 14 m near the northern 
end of the NL-RELIC mound to >23 m in the southwest corner (Figure 3-51). The 
deepest area of the Northern Region was consistent with the overall topography of the 
area. 


3.4.2.2 REMOTS® Sediment-Profile Photography 


The September 1997 REMOTS survey of the Northern Region consisted of sampling 
at eleven stations (Figure 2-7). Historic dredged material was detected at seven of the eleven 
stations distributed within the region. Dredged material was commonly characterized by a 
chaotic sediment fabric, gray clay, or disturbed surficial layers, and in most cases was easily 
distinguished from the brown, sandy ambient material. Dredged material was not detected 
in any replicate image obtained from Stations N1, N3, N5, and N10 (Table 3-8). However, 
some historical material placed over 20 years ago at the NL-Relic mound, near Station NS, 
may now appear similar to ambient material. Station N9, located at the northern edge of the 
Seawolf Mound may have been influenced by dredged material disposed during the 1995-96 
disposal season. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


116 


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Monitoring Cruise at the New London Disposal Site, 1992 — 1998 


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Depth Difference 
September 1997 versus July 1986 Master Bathymetric Survey 


41° 16.750’ N-jae 


Depth Difference 
Due To Survey 
Artifacts 


41° 16.500’ N+ 


41° 16.250° N 


41° 16.000’ N 


41° 15.750°N 


72° 05.250° W 72° 04.750° W 72° 04.250° W 


NLDS 
Difference in meters 


NAD 83 


—k = 
Om 400m 


Figure 3-50. Depth difference between the 1986 and 1997 master bathymetric surveys 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


119 


Fine to very fine sand characterized the sediment at most stations in the Northern 
Region, as the major modal grain size was 4 to 3 phi (very fine sand) in most photographs 
(Table 3-8). At Station N9 fine sediments, either gray clay or brown clayey silt (>4 phi), 
were predominant. In contrast, one replicate at Station N6 contained gravel with overlying 
shells. Station 10 had two photographs with a coarser grain size of fine sand (3 to 2 phi). 
Surface sand overlying fine-grained sediment (sand over mud stratigraphy) was noted in 
one-fourth of the photographs from the region. 


Despite the occasional appearance of an overlying sand layer, all of the stations in 
the Northern Region had relatively low boundary roughness values, with a replicate- 
averaged mean of 0.9 cm. The coarse grain size in replicates at Station N6 and N10, in 
addition to the predominance of shell lag and disturbed tube mats on the sediment surface, 
indicated potential bottom current scouring. Although some stations were indeterminant or 
had biogenic activity, boundary roughness was primarily due to physical forces. 


The replicate-averaged apparent RPD ranged from 0 to 6.2 cm (3.0 average; Figure 
3-52; Table 3-8). At Station N9, two replicates had an indeterminate RPD and one 
replicate had no RPD visible due to the presence of gray clay. Seven replicate images 
collected throughout the region had a visible redox rebound ranging from 4 cm to 7 cm 
depth, suggesting a recent reduction in RPD depth. 


The biological assemblage at the Northern Region stations showed a dominance of 
Stage II organisms (amphipods) with some Stage III organisms present (Table 3-8). The 
Stage II organisms settle and create dense tube mats on the sediment surface, filtering 
particles from currents they create at the top of the tubes. This high density of tubes and 
filtering activity may serve to exclude Stage I organisms. Only a few replicates were 
suspected of having retro-Stage II conditions. Stage III organisms, indicated by sub- 
surface feeding voids, were present in 13 replicates of the Northern Region stations 
(Figure 3-53). 


Median OSI values ranged from +1 to +11 over the Northern Region, with an 
overall average of +7.4 (Table 3-8). The majority of the stations had OSI values > +6. 
The lowest OSI was detected at Station N9, where gray clay was present from the nearby 
Seawolf disposal mound. The highest possible OSI value, +11, was calculated for four 
replicate images and assigned to Station N8. Neither low dissolved oxygen conditions nor 
methane were observed in any of the photographs collected in September 1997. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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3.5 NL-92 Disposal Mound 


The NL-92 mound is a small dredged material disposal mound formed by the 
disposal of approximately 18,000 m3 of dredged material at the NDA 92-2 buoy. This 
small deposit was detected in the August 1995 bathymetric survey (Figure 3-35). A 
0.56 km? area surrounding the NDA 92-2 buoy position was selected as the area of detailed 
analysis. The NL-92 mound was found to be 140 m wide, with a maximum height of 0.6 
m (Figure 3-54). A REMOTS® sediment-profile photography survey was not conducted 
over the NL-92 mound, because this location was planned to be used for dredged material 
disposal relatively soon after the bathymetric survey. 


3.6 | NLDS Reference Areas 


Three reference areas for NLDS (NLON REF, NE REF and WEST REF) were 
surveyed with the REMOTS® sediment-profile camera in August 1992, August 1995, 
September 1997 and July 1998. These reference areas provide a basis for comparison with 
the images collected over the NLDS project mounds and aid in determining the health of 
the benthic community within the disposal site. The condition at NLON REF, NE REF, 
and WEST REF is presumed to reflect seasonal and annual variations in environmental 
conditions. Three replicate photographs were collected at each reference area station and 
subjected to the identical series of measurements and criteria used to characterize benthic 
habitat within the disposal site. A complete set of REMOTS® image analysis results for 
each reference area and each survey are presented in Appendix B. 


3.6.1 August 1992 Survey 


A 13-station cross-shaped grid was established over each of the three NLDS 
reference areas in August 1992 (Figure 2-8). The results obtained from the reference areas 
were used in comparison to the data collected over the NL-91 and D/S mound complex. 


Dredged material was not apparent at any of the reference stations. Sediment 
layering (sand-over-mud stratigraphy) was noted in multiple replicate photographs at NE 
REF and NLON REF. The surfaces at these stations were characterized by shell fragments 
and fine sands overlying silt and clay, with the formation of some bedforms (ripples). 


The stations over NE REF and NLON REF displayed very similar sediment grain 
size distributions, relative to the disposal site, with a major mode of 3 to 4 phi (very fine 
sand; Table 3-9). The WEST REF was also characterized as predominantly sand, but 
sediment grain size major modes varied between 2 to 3 phi (medium to fine sand), 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


123 


Table 3-9 
NLDS Reference Area REMOTS® Sediment-Profile Photography Results Summary for the 1992 Survey 


Camera in Si Boundary 
Number | Penetration Z j Roughness 
Mean (cm) i Mean (cm) 


Mound/ Ref 
Area 


NLON REF 

NLON REF t i : Stage II 
NLON REF t t f Stage II 
NLON REF \ t : Stage II 


NLON REF b ! : Stage Il ON Stage III 
NLON REF i i A Stage II 
NLON REF ! Y 2 Stage II 
NLON REF : ! d Stage II 


NLON REF : \ : Stage II 
NLON REF : f é Stage | 
NLON REF ; t : Stage II ON Stage III 
NLON REF i t ; Stage II 


NLON REF : I f Stage II 


7.05 0.00 i Stage Il 
9.48 0.00 HUN Stage Il ON Stage III 
9.61 0.00 ll Stage II 

7.59 0.00 1M! Stage I ON Stage III 


6.97 0.00 LILI | Stage Il ON Stage III 
8.46 0.00 " Stage II 

10.61 0.00 11H Stage II ON Stage III 
8.24 0.00 11,1 Stage Il ON Stage III 


8.69 0.00 HU Stage Il ON Stage I! 
8.69 0.00 i TT 

7.33 0.00 i TAT 

7.58 0.00 i TAT Stage Il ON Stage III 


8.00 0.00 i Stage II 


Stage | ON Stage III 
Stage | 


Stage Ill 
INDET 
Stage | ON Stage III 
Stage | ON Stage III 


Stage | ON Stage I!! 
6.41 0.00 


10.61 0.00 
0.00 0.00 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


Depth Difference 


41° 16.600° N 


41° 16.500° N 


72° 05.000° W 72° 04.9800°W 72°04.800°W 72° 04.700° W 


NLDS 

NL-92 Mound 

Mound Height in Meters 

NAD 27 

EE EZ 
Om 200 m 


Figure 3-54. NL-92 mound, depth difference from August 1992 to August 1995, 0.2 m 
contour interval 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


125 


3 to 4 phi (very fine sand) and >4 (silt). Shell fragments and shell lag deposits were also 
a major characteristic of the surface sediments at WEST REF. 


Each of the three reference areas showed relatively low intra- and inter-station mean 
boundary roughness values, ranging from 0.0 cm to 2.2 cm across all three areas 
(Table 3-9). Boundary roughness determinations were classified as biogenic for the 
majority of the photographs collected in August 1992. 


The replicate averaged RPD depths within the three areas ranged from 0.0 cm to 
2.3 cm, the overall average RPD was 1.44 cm (Table 3-9). The WEST REF exhibited 
slightly deeper RPD layers than those at NE REF and NLON REF. No redox rebound 
layers were observed in any of the replicate images collected at the three reference areas. 


The NE and NLON reference areas exhibited Stage II populations (amphipod tube 
mats) with several stations progressing to Stage III, while the reference area WEST REF 
showed signs of recent benthic disturbance. Five of the 13 stations sampled at WEST REF 
had exclusively Stage I populations (Table 3-9). Four stations had Stage I organisms 
colonizing the sediment surface over Stage III deposit feeders at depth. The eastern-most 
station displayed evidence of a healthy Stage III population. Stations 300 m north, 100 m 
east, and 200 m east had indeterminate successional stages due to low camera penetration. 


The median OSI values at the reference areas in 1992 ranged from +2 to +8, with 
an overall average of +5.4. The majority of stations had index values of +5 and +7 
(Table 3-9). There were five indeterminate stations at the disposal site and three at the 
WEST REEF area, due to indeterminate RPD values or successional stages. Neither low 
DO conditions nor sediment methane were noted at any of the 39 reference stations in 
August 1992. 


3.6.2 August 1995 Survey 


The surficial sediments at the NLDS reference areas (NLON REF, NE REF, and 
WEST REF) were examined with REMOTS® sediment-profile photography as part of the 
August 1995 survey. These reference areas served as a baseline for determining the health 
of the benthic community at the NL-94 and USCGA mounds, as well as the NL-91 and D/S 
mound complex. In contrast to 1992, a total of 15 stations were surveyed in August 1995 
(four at NLON REF, five at NE REF, and six at WEST REF). These stations were 
randomly distributed within a 300-m radius of the center of each reference area 
(Figure 2-8). 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


126 


No dredged material was present in any replicate photograph obtained from the 
three reference areas. Camera penetration depth ranged from 3.0 cm to 9.6 cm, and was 
shallowest at WEST REF (Table 3-10). Despite the relatively low penetration, sand-over- 
mud layering was observed in all replicate photographs from NE REF and in two replicate 
photographs from NLON REF Station 2. No evidence of mud was seen at WEST REF. 


All of the reference areas were predominantly characterized as fine to very fine 
sand (Table 3-10). At NE REF and NLON REF, the major modal grain size was 4 to 3 
phi (very fine sand) in all but one photograph from NE REF. NE REF Station 4 had a 
major modal grain size of >4 phi (silt/clay). At WEST REF, the sediment was mostly 3 
to 2 phi (fine sand). WEST REF Station 5 was dominated by 2 to 1 phi (medium sand). 


All of the reference area REMOTS® photographs showed low boundary roughness. 
Averaged boundary roughness values for the stations ranged from 0.4 cm to 1.6 cm and 
were attributed to biogenic activity. 


The apparent RPD depth ranged from 0.7 cm to 2.9 cm at the reference stations. 
The average RPD value was 1.76 cm at WEST REF, 1.04 cm at NE REF, and 1.51 cm at 
NLON REEF (Table 3-10). Two REMOTS® photographs at WEST REF (Station 2/B and 
Station 6/B) showed no RPD and indications of low apparent DO conditions within the 
bottom waters. No redox rebound layers were detected in any of the 1995 reference area 
photographs. 


In general, the reference areas displayed a solid Stage II benthic community with 
progression into Stage II on III at all but two stations (NE REF Station 2 and NLON REF 
Station 4; Table 3-10). Dense amphipod tube mats were present at all three reference 
areas. The replicate image obtained from WEST REF Station 6/B was classified as azoic, 
while the remaining two photographs (obtained within a 25 meter radius) displayed healthy 
Stage II and Stage III benthic communities. This suggests a very recent and highly 
localized benthic disturbance. 


Median OSI values ranged from +4 to +8 at the reference stations during the 1995 
survey, with an overall average of +5.9. This shows a slight improvement in overall 
benthic conditions, relative to the August 1992 survey despite one replicate photograph at 
NLON REF (Station 2/B) and two replicates at WEST REF (Station 2/B and Station 6/B) 
showing evidence of low DO conditions or enrichment. No methane gas was apparent in 
any replicate image. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


127 


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3.6.3 September 1997 Survey 


A total of 13 randomly selected stations were surveyed with the REMOTS® 
sediment-profile camera at NUON REF, NE REF and WEST REF reference areas as part 
of the September 1997 field effort. Four stations were surveyed in NLON REF, four at 
WEST REF, and five in the NE REF. These data were used as the basis for comparison in 
assessing benthic habitat quality over the NL-94 mound and the NL-91 and D/S mound 
complex. 


No dredged material was present in any of the replicate photographs obtained from 
the three reference areas. Replicate averaged camera penetration depth ranged from 
4.6 cm to 10.3 (Table 3-10). The shallow to moderate camera penetration documented 
limited sand-over-mud layering at several stations within each reference area. All of the 
reference areas showed some evidence of physical reworking or erosion of sediment as 
shown by the following characteristics: poor sediment sorting, shell layers near the surface 
(shell lag), hydroids, or ripped up amphipod tube mats. WEST REF showed the most 
widespread evidence of physical reworking, with shell lag at 4 out of 6 stations. 


All of the reference areas were similar in sediment grain size distributions with a 
predominant major mode of 3 to 4 phi (very fine sand). Station 10 in the WEST REF was 
an exception to this and exhibited a predominant grain size major mode of 2 to 3 phi 
(medium to fine sand; Table 3-10). 


Each of the three reference areas showed relatively low intra- and inter-station mean 
boundary roughness thickness values, ranging from 0.39 cm to 1.39 cm (Table 3-10). The 
overall average boundary roughness was 0.73 cm, with the majority of replicates 
displaying physical disturbances. 


The replicate averaged RPD ranged from 1.75 cm to 3.48 cm, with an overall mean 
of 2.35 cm within the three areas (Table 3-10). Redox rebound layers approximately 5 cm 
deep were identified in two replicates obtained from NE REF. 


The NE REF and WEST REF reference areas exhibited primarily Stage II 
populations, with several stations having Stage III present (Table 3-10). The reference 
area NLON REF showed primarily Stage II organisms progressing to Stage III (three of 
four stations) and one station in which Stage I organisms were present at the sediment 
surface over Stage III deposit feeders. The images from NLON REF and NE REF showed 
dense amphipod tube mats (Stage II). The mats at NE REF were in the process of being 
eroded during the survey, while those at NLON REF were largely intact. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


129 


Median OSI values for the reference area REMOTS® stations ranged from +5 to 
+10, with an overall average of +6.8 (Table 3-10). Once again, the reference areas in 1997 
showed a small improvement in benthic habitat conditions relative to previous years (1995 
and 1992). No low DO conditions or methane gas was detected in any replicate image. 


3.6.4 July 1998 Survey 


As part of the July 1998 survey over NLDS, 13 randomly selected stations were 
surveyed with the REMOTS® sediment-profile camera at NUON REF, NE REF and 
WEST REF reference areas. Four stations were surveyed in NLON REF, four at WEST 
REF, and five in the NE REF. These data were used as the basis for comparison in 
assessing benthic habitat quality over the NL-91 and D/S mound complex. 


Camera penetration ranged from 5.6 cm to 11.7 cm, with an average of 7.8 cm, 
which was comparable with 1997 results (Table 3-11). No evidence of dredged material 
was apparent in any of the photographs. Sand or sandy silt over mud stratigraphy was 
observed in many of the photographs. Sediments at NE REF and NLON REF were 
moderately sorted, whereas WEST REF sediments were primarily poorly sorted. Organic 
detrius, surface scour, and/or shell fragments were present at the surface in many of the 
replicates. 


Fine to very fine sands (3 to 4 phi) characterized most of the sediment at the 
reference areas (Table 3-11). Two stations within NE REF were composed primarily of 
fine-grained sediments (>4 phi) while WEST REF displayed several stations with a 
significant fine sand component (2 to 3 phi). 


Boundary roughness values were generally low (<1 cm), except at WEST REF 
Station W13 (STA 08), which had a replicate average value of 1.7 cm. Disturbances 
within the surface sediments at the reference areas were primarily attributed to physical 
forces. However, evidence of biological activity causing the surface disturbance was 
present in approximately 33% of the reference area photographs. 


The RPD depths ranged from 1.55 cm to 3.98 cm, with an overall average of 2.55 
cm (Table 3-11). In general, the RPD depths at both NLON REF and WEST REF tended 
to be deeper relative to NE REF. Redox rebound layers were apparent roughly 4 cm 
below the sediment-water interface at two stations within NE REF (Stations 10 and 12). 


Tube mats were common at the reference areas; some of these mats appeared to be 
disturbed at NE REF and WEST REF. Stage II was considered the dominant successional 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


130 


stage. Stage I was found at multiple stations in all three reference areas, but only seven 
replicates had active feeding voids at depth to indicate the presence of Stage III individuals. 


The OSI median values ranged from +5 to +10, with an overall average of +6.7. 
These were very similar to values observed in 1997 (+6.8). No replicates had low 
dissolved oxygen conditions, although a few replicates from NE REF did portray dark, 
sulfidic sediments. No methane gas pockets were detected in the images obtained from the 
reference areas in July 1998. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


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4.0 DISCUSSION 


The New London Disposal Site (NLDS) was monitored over five time intervals 
during the period 1991-1998 and received dredged material from twelve distinct episodes 
of disposal (Figure 1-3). The patterns of disposal and monitoring provide an overview of 
the processes affecting the environment within the disposal site. This report includes 
specific details regarding individual disposal mounds, their history and monitoring results. 
This report is the first of two-volume report that covers D/S, NL-91, USCGA, NL-94, and 
the Northern Region. Volume 2 of this report covers the results of monitoring the U. S. 
Navy Seawolf mound in 1997 and 1998. Before discussing each mound complex and the 
baseline study of the northern region, it is helpful to review the evidence of physical and 
biological response to disposal activity at this site. 


The master bathymetric survey conducted in 1997 over the revised DAMOS NLDS 
site boundaries provided data for an analysis of the topographic signature of the disposal 
site over a ten year period since the prior master survey in 1986 (Section 4.1). The 
REMOTS® sediment profile photography results from the disposal sites are compared in a 
general way with the results from the three surrounding reference areas (NLON-REF, NE- 
REF, and WEST-REF) in Section 4.2. The history and monitoring results of each disposal 
mound (D/S & NL-91, USCGA, NL-94) are then discussed (Sections 4.3, 4.4, 4.5). 
Finally, a discussion of the baseline characterization results for the Northern Region is 
provided in Section 4.6. 


4.1 Topography and Evidence of Historical Disposal at the NLDS 


The 1997 master bathymetric survey showed several key features important for the 
future management of the NLDS. First, the spatial distribution and topography of the 
dredged material mounds coincided well with the known buoy locations and mound growth 
over time as recorded in previous surveys (NUSC 1979, SAI 1980, Parker and Revelas 
1989, SAIC 1990a, b, c; 1995a, b; Germano et al. 1995). Coherent disposal mounds can 
be seen associated with the historical placement of dredged material at the following 
locations: NL-I (1978), NL-II (1979-80), NL-III (1980-81), Seawolf, NL-85, NL-88, 
Dow/Stonington & NL-91, USCGA/NL-TR, NL-95, and NL-94/96 (Figure 1-2). Most 
significantly, the NL-RELIC Mound has been a prominent and unchanging feature at the 
site since DAMOS bathymetric surveys began in 1977 (NUSC 1979, SAI 1980). The 
presence of discrete disposal mounds with consistent heights and shapes provides evidence 
that dredged material placed on the seafloor at the NLDS has been stable for at least twenty 
years. The importance of these results should be emphasized. Despite clear evidence of 
surface washing of fine-grained material across the disposal site and a potential for active 
bedload transport (Knebel et al. 1999, Waddell et al. 1999), the consolidated mass of 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


134 


disposal mounds measured as volume in bathymetric depth-difference calculations has been 
stable over a period of at least twenty years. 


A three-dimensional view of the master bathymetric survey showed lower 
topographic relief south of the NL-RELIC Mound, in a depression surrounded by historical 
dredged material disposal mounds (Figure 3-49). The practice of using the periodic 
disposal of dredged material to develop topographic barriers was first discussed in relation 
to NLDS (SAI 1980). This practice was a successful management method during the 
formation of the NHAV-93 mound at the Central Long Island Sound Disposal Site (Morris 
1996). In that study, a topographic depression was used to site the disposal of a major 
dredging project (New Haven); the disposal of the dredged material in this “bowl” served 
to restrict its lateral spread. The depression located south of the NL-RELIC mound 
represents a potential area for similar future management of material at NLDS. However, 
the location of this bowl directly beneath the U.S. Navy Submarine corridor may place 
limits on the effective use of this area for dredged material disposal. Buoys located in this 
corridor are a hazard to submarine navigation and mound height would need to be limited, 
in order to ensure water depths greater than 14 m. Other topographic low areas are near 
the margins of the disposal site and include the trough in the southwestern quadrant of the 
site, which is associated with the natural ridge southwest of the site. 


4.2 Biological Response to Disposal at the NLDS 


The REMOTS® sediment profile data collected from reference areas and within the — 
disposal site provide an opportunity to compare and contrast the biological response to 
disposal activity over a six year period (1992-1998). Throughout this period the fresh and 
recent (1-6 years old) dredged material showed a rapid recovery from a disturbed surface 
to a healthy benthic assemblage. Areas of historical dredged material (over 6 years old) 
were not specifically targeted for investigation, but were sampled around the margins of 
new disposal mounds. These areas all supported a healthy mature benthic community. 
Reference areas appeared to be recovering in 1992 from some patches of disturbance in 
1991 but also recovered rapidly and returned to a more uniform mature benthic community 
in 1995. All reference areas experienced some limited patches of disturbance (presence of 
recolonizing Stage I organisms, eroded tube mats, shallow RPDs) at various times within 
the survey period. None of the individual reference stations exhibited consistent 
disturbance, that is, the patches were in different places each year. Overall, the reference 
areas supported a healthy benthic assemblage and displayed typical features of seasonal 
settlement and disturbance (see below). 


Assessment of the health of the benthic community at NLDS requires the ability to 
separate site-specific characteristics from regional environmental characteristics. During 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


135 


this time, historical dredged material and reference areas experienced very limited direct 
physical disturbance, whereas areas that received fresh dredged material experienced a 
short period of physical disturbance followed by recovery. In some areas, dredged 
material was placed two or three times during the six years. All of the monitoring surveys 
were conducted in late summer (July 30-September 6), a period with elevated water 
temperatures and the potential for ecological stress or seasonal senescence of settling 
organisms (see below). 


The most consistent biological characteristic observed over the monitoring period 
was the widespread presence of tube building amphipods in surface sediments. These 
organisms collect fine-grained sediments to construct their tubes, and the presence of the 
tubes enhances trapping and deposition of fine sediments (Mills 1967). The mats can 
become very dense and restrict bioturbation and circulation in sediments below the tubes 
(the result is a relatively thin redox potential discontinuity or RPD). In both disposal areas 
and reference areas, a mixed layer of fine sand and coarse shells was present beneath the 
tubes, but this layer is often difficult to see. Clumps of mussels also were seen and widely 
reported from the area within and around the disposal site. In areas with shells or pebbles 
on the surface, hydroids and mussels were seen attached to the hard substrate. 


When the amphipod tubes are physically disturbed or abandoned (due to natural 
seasonal decline, senescence or environmental stress), they are easily eroded, and the sand 
or shell surface is again exposed to bottom currents. As a result, summer periods (when 
the tube mats are present and widespread in and around the NLDS) may represent active 
deposition of fine sediment, with subsequent die-off or thinning of the tubes and sediment 
reworking in the winter. 


The surface sediment characteristics are a combination of the material deposited and 
processes of physical and biological reworking. The DAMOS monitoring results reported 
here serve to demonstrate that the surface sediment characteristics throughout the disposal 
site and reference areas became similar over time (with the exception of areas mantled with 
coarse sand or pebbles). The NLDS is subject to relatively strong tidal currents but is also 
sheltered from wave disturbance (Waddell et al. 1999). When tidal currents are sufficient 
to transport fine sand as bedload, some fine materials may be winnowed leaving a lag 
deposit of sands and shells too large for transport. Semi-diurnal tidal currents at the NLDS 
appear to be strong enough to rework unconsolidated surface sediments through this 
process until surface sediments have a lag deposit of sand or shells. However fine surface 
sediments are also bound by biological activity and may be remarkably resistant to erosion 
while the organisms are alive. Tidal currents are likely to be slightly weaker in the 
depression where the NL-91 and D/S mound complex is located compared to the tops of 
nearby, shallower mounds. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


136 


The result of the surface sediment winnowing process includes six characteristics in 
REMOTS® images: shell lag, winnowed surfaces, disturbed amphipod tube mats, physical 
boundary roughness, and sand-over-mud stratigraphy. There are three potential causes for 
surface disturbance of tube mats: 1) predator foraging; 2) microbial decomposition 
following the abandonment of the tubes; and 3) disturbance from either trawling or a 
temporary increase in near-bottom turbulence or current velocity. When tubes are 
abandoned they are much more susceptible to physical transport by currents. 


Surface sediment reworking at NLDS appears to be limited to winnowing of fines 
accumulated during the summer in areas where shell lag armors the surface. The shell lag 
may form in the fall and winter during periodic storms, then again be covered with tube 
mats that bind finer sediments in the spring and summer. This seasonal response is 
observed to be consistent between reference areas and disposal areas, and results in a 
fluctuation between seafloor surfaces covered with muddy tubes to surfaces with clean shell 
and fine sand. This seasonal cycle may open opportunities for settlement of recolonizing 
benthic organisms and explain their patchy distribution at reference areas. Any deposition 
of fresh dredged material will begin to be exposed to this cycle and will eventually acquire 
tubes or attached organisms depending on grain size. In general, there is evidence of fall- 
winter winnowing in many areas of NLDS and spring-summer deposition of finer 
materials. As shown by the long-term stability of mounds at the site (see above), this cycle 
does not appear to result in any significant net loss or gain of sediment. 


4.2.1 Evidence of Low Dissolved Oxygen 


In some years (1995, 1997), NLDS appears to have experienced a seasonal or 
annual environmental stress or disturbance that has affected apparent reduction-oxidation 
conditions within the sediments across some of the disposal mounds and nearby reference 
areas. In other years (1992, 1998) there is no evidence of such disturbance. Dissolved 
oxygen concentrations measured in August 1992 approximately 1 m above the bottom at 
the disposal site and reference stations ranged from 7.3 mg-I' to 7.8 mg-!', while surface 
water oxygen concentrations ranged from 7.7 mg:I' to 8.1 mg-I'. These results are 
comparable to results for August 5, 1992 (7.05 mg-I') from the Connecticut Department of 
Environmental Protection Hypoxia Monitoring Program (CT DEP) measured at Station M3 
(Kaputa and Olsen 2000). Station M3 is located at the west end of Fisher's Island, 2 nmi 
SE of NLDS in greater than 35-m water depth (water depths at NLDS range from 14 m to 
24 m). 


The monitoring surveys conducted in early August 1992, late August 1995, early 
September 1997 and late July 1998 all revealed the presence of widespread tube-building 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


137 


ampeliscid amphipods at the surface sediments. At the time of the surveys, many of the 
tubes were empty and the mats were susceptible to disturbance. In the surveys conducted 
later in the summer (1995 and 1997) the sediments underneath the mats contained evidence 
of restricted circulation in the bottom waters or organic enrichment of the sediments 
(shallow RPD thicknesses, methane bubbles, senescent tube mats, e.g. at USCGA and NL- 
91). The presence of these indicators at the reference areas suggests that a regional 
environmental stress or disturbance may have affected the eastern LIS region in 1995 and 
1997. 


It is generally assumed that eastern LIS does not experience hypoxic conditions 
(defined by the EPA’s Long Island Sound Study as 3.0 mg-I" or less). CT DEP data for 
this region show a seasonal decrease in DO values from May to December with a low 
period from late July to August or September (Kaputa and Olsen 2000). Stations further 
away from NLDS (K2, J2, and N3) also follow the same pattern of lower DO values in the 
surface and bottom waters from May to December. Dissolved oxygen levels normally 
decrease to 6 or 7 mg-!" for all of these stations. The lowest values recorded since 1991 
for these stations approached 5.9 mg-I" in the summer of 1991. Based on the CT DEP time 
series data there is no evidence that 1995 or 1997 experienced conditions markedly 
different from 1992 or 1998. However the surveys in 1995 and 1997 were conducted later 
in the summer when environmental stress may have been sustained for a longer period. 


While these measured values do not seem sufficient for true hypoxia, they may 
contribute to the conditions observed. The most likely explanation for the presence of 
patches of reduced sediments and methane is that seasonal senescence of dense mats of 
tube building amphipods may create temporary reducing conditions near the sediment 
surface. Once these mats are eroded, the reduced sediments will be exposed to overlying 
waters and rapidly oxidized through bioturbation and diffusion. Sediment profile surveys 
conducted during this period (late August - early September) might contain all three of 
these conditions (senescent tube mats and reduced sediments, reduced surface sediments, 
thin RPD at surface). DAMOS surveys in western and central Long Island Sound have 
noted that survey data during late summer may be complicated by the sediment disturbance 
induced by hypoxic conditions and have recommended that surveys should be conducted in 
early summer or early fall after recovery (Morris 1998, Murray and Saffert 1999). While 
the eastern Long Island Sound may not experience hypoxia, it seems clear that seasonal 
biological processes may affect survey results. Future surveys at NLDS could optimally be 
scheduled after recolonization has begun (early June) but before mid-August when tube 
mats appear to senesce. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


138 


4.3 Capping of the Dow/Stonington Disposal Mound 


The NL-91 and D/S mound complex reflects a complicated history. The products 
of seven disposal sequences are reflected in the results of four separate monitoring surveys. 
These results show that a low mound complex was formed in 1991-1992 from mixed 
deposits rather than a distinct capped mound. This mound complex had a thin layer of 
sand covering the central region that was subsequently covered with additional cap material 
in 1997-1998 (Figure 3-30). While the intended capping process was not completed as 
originally planned in 1992, the presence of the sand layer and addition of subsequent cap 
material in 1997-1998 has provided sufficient interim isolation of the material intended for 
capping. Throughout the survey period this mound complex supported a healthy benthic 
community that progressed rapidly from early colonizers to a more mature state. There 
was no evidence of adverse environmental impact from the sediments and the surface of 
the mound responded physically and biologically the same as other mounds and the 
reference areas. Further, additional sediment was sent to this location from 1998-2000, 
and the results of follow-up surveys will be presented in a future report. 


Dredged material disposal activities at NLDS were confined to the period between 
mid-October 1991 through mid-January 1992. Within those 90 days, the NDA buoy was 
moored at four different locations, the D/S buoy was removed from the site during capping 
operations and never recovered, and the U.S. Navy established a 300-m wide corridor for 
submarines transiting through NLDS. In the midst of an unusually active buoy 
management cycle, an apparent error in navigation information during disposal resulted in 
much of the CDM being placed somewhat to the east of the buoy, leading to the formation 
of the irregularly-shaped NL-91 and D/S mound complex (Figure 3-9). 


The depth difference map generated using survey data collected before and after 
CDM disposal indicated that the bulk of the CDM was placed east of the NDA and D/S 
buoys (Figure 3-8). REMOTS® sediment-profile photographs were further assessed to 
determine if thickness of material <20 cm could be mapped to further delineate the 
distribution of dredged material (see Section 4.3.2 and Figure 3-11). 


4.3.1 Benthic Recolonization 


The area surrounding the NL-91 and D/S mound complex consistently showed 
evidence of rapid benthic recolonization (Stage I progressing to Stage II with Stage III) 
similar to results expected from sediments with a low potential for adverse biological 
effects (Figure 3-24). In 1992, after the initial placement of material, the mounds 
supported active benthic colonization and were more advanced than predicted. Median 
OSI values ranging from +2.0 to +8.0 (average +4.9) were comparable to those of the 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


139 


reference areas (Figure 3-27 and Tables 3-1 and 3-9). The recolonization status of the area 
around the NL-91 and D/S mound complex was characterized as supporting a solid Stage 
II population with some progression into Stage III assemblages. Apparent RPD values of 
the NL-91 and D/S mound complex tended to be slightly lower, but comparable to those of 
the two eastern reference areas (NE-REF and NLON-REF). 


In 1995, three years after the NL-91 and D/S mound complex was placed, the 
benthic communities at the most recent disposal mounds were even more advanced than in 
1992 and comparable to the reference area benthic community (which had improved). All 
stations contained Stage II on III successional stages and RPDs had deepened (Table 3-2). 
OSI values had improved from an average of +4.9 to +8.0. In 1997, the NL-91 and D/S 
mound complex continued to support a healthy benthic community. The dominant 
successional stages were Stage II or Stage II on III (Table 3-3). The median OSI values 
ranged from +2.0 to +11, with an overall average of +8.6, slightly higher than measured 
in 1995. After placement of additional cap material in 1998, the NL-91 and D/S mound 
complex again supported a healthy benthic community. The dominant successional stages 
were Stage II or Stage II on III communities (Table 3-4). 


Recolonization of the new dredged material was rapid and many of the replicate 
photographs from these regions showed Stage III feeding voids. The station median OSI 
values ranged from +3.0 to +11.0, with an overall average of +7.5, which was only 
slightly lower than prior to the placement of new material (1997). 


4.3.2 Sediment Distribution and Characterization 


The evidence from sediment profile photography of the distribution of dredged 
material released during the 1991-1992 disposal season is consistent with the placement of 
a mixed deposit of Dow UDM and Stonington UDM and Port Niantic material near the 
D/S buoy, and east of the D/S buoy a deposit of Dow CDM (compare Figures 3-8 and 3- 
11). REMOTS® photographs collected in 1992 were able to provide a clear delineation of 
the distribution of fresh dredged material, but it was difficult to clearly separate the source 
of fresh materials. The UDM and CDM from Dow facilities were quite similar in 
sediment texture (black silt). However the REMOTS® photographs revealed the presence 
of a layer of sand over much of the surface of the NL-91 and D/S mound complex. 


This distinctive sand layer (1.27 cm to 7.03 cm thick) was mixed with dredged 
shells and small pebbles. The layer is similar in texture to the Port Niantic material 
targeted for the NDA buoy on 11 and 12 December 1991 at the end of the disposal period 
(Figure 3-12). REMOTS® photographs collected in the vicinity of the bulk of the CDM 
deposit detected a thin layer of biologically re-worked dredged material over fresh dredged 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


140 


material (Figure 3-10) whereas surrounding the new mounds, the surface sediments were 
reworked older dredged material (lighter in color). 


The surface of these deposits converged over time with the development of a 
reworked shelly sand surface seasonally occupied with amphipod tubes. The lateral edges 
of the original deposit were clear in 1992, but became less clear as subsequent deposition 
and reworking caused the surface sediments to converge in appearance. This similarity in 
appearance indicates a continual effect of biological and physical reworking as amphipods 
trap mud and tidal currents transport fine sand and shell fragments. In 1997 the pattern of 
distribution was quite uniform with fine to very fine sand over the entire survey area 
including the NL-91 and D/S mound complex, and similar to the reference areas. 


After deposition of new material in 1997-1998, a fresh layer was found over the 
center of the Dow/Stonington UDM (Figure 3-29). The 1997-1998 disposal logs indicated 
that 6,850 m? of sediments were placed over the northern area of the D/S mound as 
supplemental cap (Figure 3-30). This material was seen as distinctive layers of fresh 
dredged material in stations over the older D/S Mound sediments and to the north (Figure 
3-33). In some stations to the east, the new material was not sufficiently distinct to 
measure thickness but was darker and showed fewer signs of biological reworking. 


One location beyond the southern margin of the NL-91 and D/S mound complex 
(1992 Station 400 S) had a distinctive layer of pebbles, shells and sand on the surface 
(Figure 3-15). This station is located on the top of a slope at the very edge of older 
dredged material accumulation. It is likely to represent a lag deposit formed from older 
dredged material. It also provides a useful reference mark because this coarse material 
was detected in each subsequent survey (400S 1992 became Stations 200S in 1995, 1997, 
1998; Figures 3-21,3-26,3-31). The consistency of results from this station located just 
beyond the margin of the disposal mound complex over a period of six years combined 
with no net topographic change is clear evidence of the physical stability (armoring) of this 
area. 


The NL-91 and D/S mound complex is located in a depression surrounded by 
disposal mounds which provide protection from tidal currents and waves. This mound 
complex has remained physically stable from 1992 through 1998. During this time the 
mound and surrounding areas have supported a stable, healthy benthic community. Any 
significant physical erosion (more than about a centimeter) or impact from biologically 
unsuitable sediments would have been evident in the REMOTS® sediment profile 
photographs collected during this period. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


117 


Depth Difference 
September 1997 versus July 1986 Master Bathymetric Survey 


41° 16.750° N 


Depth Difference 
Due To Survey Ste 
Artifacts 


41° 16.500° N7— 


41° 16.250° N 


41° 16.000° N 


41° 15.750° N 


72° 05.250° W 72° 04.750° W 72° 04.250° W 


NLDS 
Difference in meters 
NAD 83 


Om 400 m 


Figure 3-50. Depth difference between the 1986 and 1997 master bathymetric surveys 


Monitoring Cruise at the New London Disposal Site, 1992 — 1998 


118 


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119 


Fine to very fine sand characterized the sediment at most stations in the Northern 
Region, as the major modal grain size was 4 to 3 phi (very fine sand) in most photographs 
(Table 3-8). At Station N9 fine sediments, either gray clay or brown clayey silt (>4 phi), 
were predominant. In contrast, one replicate at Station N6 contained gravel with overlying 
shells. Station 10 had two photographs with a coarser grain size of fine sand (3 to 2 phi). 
Surface sand overlying fine-grained sediment (sand over mud stratigraphy) was noted in 
one-fourth of the photographs from the region. 


Despite the occasional appearance of an overlying sand layer, all of the stations in 
the Northern Region had relatively low boundary roughness values, with a replicate- 
averaged mean of 0.9 cm. The coarse grain size in replicates at Station N6 and N10, in 
addition to the predominance of shell lag and disturbed tube mats on the sediment surface, 
indicated potential bottom current scouring. Although some stations were indeterminant or 
had biogenic activity, boundary roughness was primarily due to physical forces. 


The replicate-averaged apparent RPD ranged from 0 to 6.2 cm (3.0 average; Figure 
3-52; Table 3-8). At Station N9, two replicates had an indeterminate RPD and one 
replicate had no RPD visible due to the presence of gray clay. Seven replicate images 
collected throughout the region had a visible redox rebound ranging from 4 cm to 7 cm 
depth, suggesting a recent reduction in RPD depth. 


The biological assemblage at the Northern Region stations showed a dominance of 
Stage II organisms (amphipods) with some Stage III organisms present (Table 3-8). The 
Stage II organisms settle and create dense tube mats on the sediment surface, filtering 
particles from currents they create at the top of the tubes. This high density of tubes and 
filtering activity may serve to exclude Stage I organisms. Only a few replicates were 
suspected of having retro-Stage II conditions. Stage III organisms, indicated by sub- 
surface feeding voids, were present in 13 replicates of the Northern Region stations 
(Figure 3-53). 


Median OSI values ranged from +1 to +11 over the Northern Region, with an 
overall average of +7.4 (Table 3-8). The majority of the stations had OSI values > +6. 
The lowest OSI was detected at Station N9, where gray clay was present from the nearby 
Seawolf disposal mound. The highest possible OSI value, +11, was calculated for four 
replicate images and assigned to Station N8. Neither low dissolved oxygen conditions nor 
methane were observed in any of the photographs collected in September 1997. 


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Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


147 


The Northern Region of the NLDS is an area that is relatively flat and uniform 
supporting a stable, mature benthic community. The depths in the northern half of the 
region are too shallow to accommodate placement of mounds, but the slope may provide 
some containment for projects placed in the southern half. Historical dredged material was 
observed with REMOTS® sediment profile photographs and in each case found to be 
supporting a healthy benthic community. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


148 


5.0 CONCLUSIONS AND RECOMMENDATIONS 


The New London Disposal Site (NLDS) monitoring results from 1992-1998 form a 
time-series of observations of individual mounds and the site as a whole including 
reference areas. This time-series provides insights into physical and biological processes 
and any potential environmental impacts from the disposal of dredged material at the site. 
This section provides conclusions for the site and each individual mound or region 
surveyed (and recommendations for site management). 


5.1 Overview of Monitoring 


e A dredged material management strategy has been successfully developed for NLDS 
that takes into account regional influences over the site as well as site-specific 
constraints on dredged material disposal. This strategy has incorporated the use of off- 
site reference areas to determine regional effects on the site. It also uses preexisting 
disposal mounds, and a planned placement of mounds to form a "ring of mounds," that 
will both contain the spread of dredged material on the seafloor and allow 
unacceptably contaminated dredged material (UDM) to be capped with a minimum 
amount of capping dredged material (CDM). 


e The configuration of disposal mounds at the NLDS has remained stable over at least 
the last twenty years between master surveys, indicating stability of the mass of 
material at the disposal site, despite sorting and winnowing of surficial fine-grained 
material. There is strong evidence of stability of deposits placed at NLDS as much as 
twenty to thirty years ago (NL-RELIC, NL-I, -II, -III and -TR). 


e All areas surveyed during this period showed evidence of healthy, stable benthic 
communities and rapid recolonization of dredged material following disposal 
activities. 


e Biological activity had a strong seasonal impact on surface sediments. Widespread 
settlement and growth of tube-building organisms promoted deposition of fine-grained 
sediment on the surface of NLDS. Senescence or migration of these organisms 
caused decomposition of tubes and removal of fines and tubes leaving coarser 
sediment on the surface. 


e Physical and biological monitoring data from the NLDS were consistent with a model 
of seasonal winnowing of surficial fine-grained material. This process serves to armor 
the disposal mounds with a surficial scour lag deposit providing a mechanism for long- 
term stabilization of the mounds. 

Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


5.2 


149 


Reference areas reflected conditions throughout NLDS including: seasonal responses 
to biological and physical processes and apparent impacts of low dissolved oxygen or 
organic enrichment. All reference areas supported stable, healthy benthic 
communities. In 1992 reference area conditions based on the Organism-Sediment 
Index (OSI) improved over results from 1991, improved again in 1995 and 1997 and 
remained stable in 1998. An increased presence of Stage II and Stage III organisms at 
NLON-REF and NE-REF has resulted in higher OSI values and increased RPD 
depths. Conditions at WEST-REF exhibited signs of a recent benthic disturbance in 
1992 and 1995. Low OSI values relative to NE-REF and NLON-REF, and a Stage I 
or Stage I over Stage III population suggests the area was in recovery from a localized 
disturbance. 


Dow/Stonington and NL-91 Mound 


The NL-91 and D/S mound complex is located in a flat “bowl” formed by 
surrounding disposal mounds that provides protection from storms and tidal currents. 
This mound complex was stable throughout the survey period and supported 
development of a healthy benthic community. 


Sediment deposition during disposal and capping operations during the 1991-92 
disposal season yielded a maximum mound height of 0.7 m at the D/S buoy location 
and 0.5 m at the NDA buoy location. Disposal operations resulted in the 
development of overlapping areas of deposition: a low mound at the NDA buoy, an 
elongated low mound extending eastward from the D/S buoy and a layer of sand 
mixed with shells and pebbles over a portion of both of these mounds. 


Inconsistencies in navigation and disposal barge positioning during CDM deposition 
caused the cap material to be placed somewhat to the east of the main disposal mound. 
During capping operations, the coordinates for capping points were apparently 
misinterpreted causing an offset (250 m to 400 m) to the southeast. 


The material deposited at the CDM points was composed mainly of black silt covered 
by a layer of biologically-reworked dredged material and fine sand. This bottom 
feature supported a stable Stage II benthic infaunal assemblage. 


The material deposited at the D/S buoy was composed of black silt covered with a 
sand layer 2-7 cm thick. The sand layer was consistent with material from the Port 
Niantic project disposed at the nearby NDA-91 buoy. This area supported a stable 
Stage II benthic infaunal assemblage. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


150 


3.3 


Monitoring activity over the NL-91 and D/S mound complex in 1995 and 1997 
continued to show mature and healthy benthic infaunal populations and sand-over-mud 
layering over the mound. 


The recolonization of the area by a diverse benthic community (Stages II and III), 
representing a broad range of sensitivities, indicates that sediment toxicity and chronic 
impacts are non-existent or unlikely. The response of the benthic community is a 
direct indicator of potential for adverse effects and supports a conclusion that either 
the UDM material was isolated by the surface sediments or the sediments were 
conservatively classified during the regulatory process. Nonetheless, as a prudent 
management measure, additional sediments were directed to this location in 1997- 
1998 to thicken the cap, accompanied by periodic monitoring to assess any changes. 


Additional cap material was placed over the central area in 1997-1998 as a 
conservative management response to the relatively thinner cap coverage attained 
during the project. A layer of new CDM (2-10 cm) was detected over the central 
region of the mound using REMOTS® sediment-profile photography. 


Normal rates of biological recolonization of the mound were observed in 1998. Areas 
of new CDM had a combination of initial and advanced successional stages showing 
the standard progression of recovery of the benthic community. 


USCGA Mound 


The USCGA Mound was formed in 1994-1995 from 124,000 m3 of material from the 
U.S. Coast Guard Academy. Approximately 80,500 m3 of CDM was placed over 
43,500 m3 of UDM creating a mound 420 m wide and 1 m high at the apex. The 
mound overlapped and merged with the historical NL-TR Mound in the northeast 
quadrant of the NLDS. 


REMOTS® sediment profile results in 1995 indicated that the capped mound was 
supporting a healthy benthic community. Some stations showed evidence of impact 
from low dissolved oxygen or organic enrichment, but this was also seen at the 
reference areas and is attributed to regional conditions of stress. 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


5.4 


S)o5) 


5.6 


151] 
NL-94 Mound 


The NL-94 Mound was formed in 1994-1995 from 37,000 m3 of material from the 
U.S. Navy Submarine Base. Approximately 28,200 m3 of CDM was placed over 
8,700 m3 of UDM creating a mound 125 m wide and 0.9 m high. A tongue of 
dredged material 20-40 cm thick extended 140 m southeast from the mound apex. 


REMOTS® sediment profile results in 1995 indicated that the capped mound was 
supporting a healthy benthic community. This represented faster recovery than 
expected. Some stations showed evidence of impact from low dissolved oxygen or 
organic enrichment, but this was also seen at the reference areas and is attributed to 
regional conditions of stress. 


Additional suitable material was placed in 1996-1997 to the west of the NL-94 Mound 
at the NDA-96 buoy. The NL-94/96 Mound complex forms a flat ridge in the western 
center of the NLDS between the southern edge of the Seawolf Mound and the 
northern edge of NL-I. 


REMOTS® sediment profile results in 1997 indicated that the new dredged material 
was supporting a healthy benthic community and recovered more quickly than 
expected. 


Northern Region 


The master bathymetric survey conducted in 1997 extended into an area termed the 
Northern Region to provide baseline characterization. The plateau and apron of the 
Seawolf Mound extended into this region, indicated by both bathymetric and 
REMOTS® data. Historical dredged material was detected in the Northern Region 
and can be related to pre-DAMOS disposal in the vicinity of the NL-RELIC 
Mound. The older age of this disposal activity is reflected in a higher successional 
status compared to the reference areas, for both ambient sediments and historical 
dredged material. 


Recommendations 
The capped mound formed at Dow/Stonington should receive additional material to 


ensure sufficient cap distribution (50 cm) over all UDM placed at these sites. 
Following placement of additional CDM, monitoring of the mounds should include 


Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


assessment of benthic recolonization and dredged material thickness across the 
mounds’. 


e Future surveys at NLDS could optimally be scheduled after recolonization has begun 
(early June) but before mid-August when tube mats appear to senesce. 


* During the 1998-2000 disposal seasons, over 20,000 m’ of CDM from a number of projects 
was placed at the D/S mound to augment the cap. Monitoring of the D/S mound was 
conducted during the summer of 2000, including bathymetric and REMOTS® surveys. The 


results of these surveys will be published in a subsequent report. 
Monitoring Cruise at the New London Disposal Site, 1992 - 1998 


153 
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Amer, Soc, Civ. Bag, ‘New Yo het we ee ee ie 


i. 


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ty is 5 Pears th oe Mode Hitt archon 6 nse 
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ere y 197 yy “Bing vitoruenetia asp 


here o,f Cr. First: Your’ is _ 
FEMS, Doodge River Chax wh bison 
Prepared by U8 Departmemr gts 


filpasia. Conceal Fiabe: e 


INDEX 


aerobic, 26 
anoxia, 24, 156 
azoic, 126 


barge, xiii, 3, 4, 6, 8, 9, 10, 82, 141, 142, 
144, 145, 149 
disposal, 149 
benthos, xiii, xiv, 1, 6, 10, 11, 12, 13, 14, 
22, 23, 24, 26, 33, 42, 48, 62, 67, 72, 76, 
82, 90, 98, 100, 106, 110, 115, 122, 125, 
126, 128, 129, 134, 136, 138, 139, 140, 
141, 144, 146, 147, 148, 149, 150, 151, 
1524153), 155 
ampeliscids, 26, 62, 82, 85, 110, 137, 
154 
amphipod, 11, 26, 62, 72, 76, 82, 85, 94, 
106, 110, 119, 125, 126, 128, 135, 
136, 137, 140, 141, 146, 154 
bivalve, 26 
deposit feeder, 11, 26, 62, 125, 128 
macro-, 24, 26, 153, 155 
mussels, 135 
polychaete, 11, 26 
bioturbation, 26, 135, 137 
feeding void, 119, 130, 139 
foraging, 26, 136 
boundary roughness, 22, 24, 62, 72, 76, 85, 
94, 100, 106, 119, 125, 126, 128, 129, 
136, 146 
buoy, 3, 6, 8, 9, 10, 11, 12, 16, 28, 44, 48, 
55, 67, 90, 98, 106, 110, 115, 122, 133, 
134, 138, 139, 141, 144, 149, 151 
disposal, 3, 4, 8, 9, 10, 16, 98, 144 
taut-wire moored, 4 


capping, 3, 4, 8, 9, 11, 13, 28, 44, 82, 138, 
ADA SAS 49 ol >So Ds 156 


circulation, 135, 137 

colonization, 138 

conductivity, 19 

consolidation, 12, 48, 141 

containment, 3, 4, 147 

contaminant 
New England River Basin Commission 

(NERBC), 3, 154 

CTD meter, 19, 40, 41 

currents, 4, 26, 119, 135, 136, 140, 144, 
149 
speed, 136 


decomposition, 136, 148 
density, 19, 22, 40, 85, 119 
deposition, 1, 8, 10, 16, 33, 98, 115, 135, 
136, 140, 146, 148, 149 
dispersive site 
Cornfield Shoals (CSDS), 3 
disposal site 
Central Long Island Sound (CLIS), 3, 
134, 154 
Cornfield Shoals (CSDS), 3 
New London (NLDS), xii, xiv, 1, 2, 3, 
ASS O98. 9p LOM 12. ASA 4s Ss 16; 
18, 19, 20, 21, 26, 33, 36, 39, 42, 44, 
55, 62, 67, 82, 90, 110, 115, 122, 125, 
129! 13351345185, 1365 18721885 
141, 146, 147, 148, 149, 150, 151, 
S22 SS elS4 S55 london 
Western Long Island Sound (WLIS), 154 
dissolved oxygen (DO), xiii, 10, 11, 26, 40, 
41, 42, 67, 72, 82, 90, 94, 98, 106, 119, 
125, 126, 129, 130, 136, 137, 149, 150, 
IS 


erosion, 26, 128, 135, 140 


feeding void, 119, 130, 139 
fish, 154 
fisheries, 156 


grain size, 22, 24, 55, 67, 76, 85, 100, 106, 
119, 122° 12551268128 16m 


habitat, xi, 22, 26, 33, 42, 11O0;122128; 
129, 138, 153 

hydroids, 128, 135 

hypoxia, xiv, 26, 42, 136, 137, 153 


methane, 26, 27, 67, 72, 90, 98, 106, 119, 
WSS, WAG, WAL), KO, SiC eI 


National Oceanic and Atmospheric 
Administration (NOAA), 21, 156 
New England River Basin Commission 

(NERBC), 3, 154 


oxidation, 136 


recolonization, xiv, 10, 11, 12, 13, 14, 22, 
42, 48, 67, 76, 82, 90, 98, 137, 138, 139, 
141, 146, 148, 150, 152 

reference area, xiv, 10, 11, 12, 14, 33, 39, 
40, 42, 85, 90, 106, 122, 125, 126, 128, 
129; 18091337134, 13591367137, 138; 
139, 140, 141, 144, 146, 148, 149, 150, 
151 

reference station, 11, 62, 76, 106, 122, 125, 
126, 134, 136 

REMOTS®, xiii, 9, 10, 12, 13, 14, 15, 22, 
230 DAs 26) 2128530; 61e 32) 33934530. 
37, 38, 39; 42, 48, 55, 62,67, 72, 76, 82, 
90, 94, 98, 100, 106, 115, 122, 125, 126, 
128, 129, 133, 134, 136, 138, 139, 140, 
144, 146, 147, 149, 150, 151, 152, 155 


boundary roughness, 22, 24, 62, 72, 76, 
85, 94, 100, 106, 119, 125, 126, 128, 
129, 136, 146 

Organism-Sediment Index (OSI), 8, 22, 
26, 44, 48, 67, 72, 82, 85, 94, 98, 100, 
10S 11951255 12651293 1S OMS se 
139, 141, 144, 146, 149 

redox potential discontinuity (RPD), 22, 
Soa 

sediment-profile camera, 23, 82, 106, 
NS) 5 WA WA), As. 22) 

REMOTS®®, 26, 67 
Organism-Sediment Index (OSI), 26, 67 
RPD 

redox potential discontinuity (RPD), 26 

REMOTS®, redox potential 
discontinuity (RPD), 22, 24, 26, 27, 
62, 67, 72, 76, 82, 85, 94, 100, 110, 
1125S 126s 12829 MISA 55 
137, 139, 141, 144, 149 

REMOTS®®, redox potential 
discontinuity (RPD), 26, 125 


salinity, 40 
sediment 
chemistry, 33 
clay, 25, 55, 67, 76, 94, 1G0, 106, 115, 
119, 122, 126, 146 
cobble, 25 
gravel, 25, 119 
sand, 6, 9, 25, 55, 62, 67, 72, 76, 85, 94, 
100, 106, 115, 119, 122, 125, 126, 
128, 129, 135, 136, 138, 139, 140, 
146, 149, 150 
silt, 25, 55, 67, 76, 94, 100, 106, 119, 
122, 125, 126, 129, 139, 140, 146, 
149 
transport, 26 
shore station, 16 
species 


dominance, 24, 55, 72, 119, 129, 139, 
146 
stratigraphy, 55, 76, 85, 106, 119, 122, 
129, 136, 146 
succession, 155 
pioneer stage, 11, 26 
successional stage, 22, 24, 26, 67, 72, 82, 
85, 100, 125, 130, 139, 150 
survey 
baseline, 13, 33, 44, 110, 115, 125, 133, 
146, 151 
bathymetry, xiii, 5, 6, 8, 9, 10, 12, 13, 
14, 15, 16, 18, 19, 20, 21, 44, 48, 62, 
FONOSs OM oI 22 133.1 34a 4ie 
144, 146, 151, 152, 154 
REMOTS8®,, xiv, 9, 26, 28, 55, 152 


temperature, 19 

tide, 21, 135, 140, 149 

topography, 4, 10, 12, 16, 21, 44, 90, 110, 
115, 133, 134, 140 

toxicity, 150 

trace metals 
vanadium (V), 11, 153, 156, 157 

trawling, 24, 136 

trough, 110, 134 

turbulence, 136 


waves, 4, 21, 24, 135, 140 
winnowing, 76, 85, 106, 136, 146, 148, 
150 


Pei Void, 1 19, 130, 1A9 
Pah 144 
Rehories, 156 


gras sive 22, 24, 53, 67/76, BS 100, 106. 
p16, 12% 12521226, 128. tag 4a) 


hatbin, wth 22 2G).8%) 42, 10, AD OB 
Wi 29. (33, } 1S 
by: iret. 1 of, eee 
lyponia, tiv, 36, 42096, T2053 


\ 


erutthiane,: 26,27, 7, 7 
125, 120, TAR, VIO 137, Tae 


Nationa! Oscanic and Atino ve it) 

AMmoinintration (DAA), 2109 56. 08 
| New Enghokd River Bast So on shee } 
(NERBCY, 3; 134). 


ak icixtiont) i at 


¥en pepe xiv, Ltd, 
42, 48. 67,76, 82, 00.982 
bat; ae 148, {5G 752" 
teferenice seea, Ki0,10; B hee tuky 44: sp 
ue 40, : i. ‘85, 90, 106, 122. 125, sr 18), 


NDS, Dat, 453; (34, WAS CGT R7, aR 


PAG Lad, 149, 144, M6) 148, 28, 
ey if P 
_fekermace sation  Phys2 a6; 106, yan an ith, 


126, 434; 136 
REMAN, xiii U0 Us 19, A 
25: 28. TG PF 728; 30. 2 Bly: Bay 33, u; 6, 


97,8, 3 42, 48, 35, 62,67, 92, By | 
0) Pa, HR, 400, 106) 118, 122,008); 16, 


“128, 1PM) GRD, 194,136, LRT IONE 


144; 146, 147, 149, 150, 151 A 


 SeaBhocbbrek HeASeuibn Maa 


72, 90, 98, 106,119, PPD PCP RED SSE SLE OLE. 


. ou am bag ati 


Me 1. f i ie 
2 


Seb it 95 ame | 
i eh 94, Malin ho eee a 
' SOpm HMM? Ov Seve a 


anit eeetiniayst init 
6, 44-48, 67, 72, yin 
140, 149, 12-29 del eae 


3 ie as 


RO BK 
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ett a alg e 


VTS. 122, 125, 728, FIER 
west ‘aban Bi eare sltlax wy 


rv phen frre ese Y 
- dia uty ae 
7 FR: T6, B2 SSS 
re LS, 126, CPs, Ob, 


at sont th ae #2 f 
godine | 
wloiaistry, 94) ” 
clay, 25, 55, 67, 16; SF 
PPO 122,126, hs 
Sofa a5 Ob 


satin i: 9) 25. $5, a2, OP; 
100; 106) 15,4 oe 
128, 129, 135, 136 uy 
146,149, 1500" 
wits, 24, 58, ie 16/9, .5 


Appendix A 
Disposal Logs 


Al 
1991-92 Disposal Season 


SLE sv3 B14 
SLE nos 02 
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VNINVW YOW NSM9 
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“ONIOILNVIN LYOd 
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WOIWSHO MOG 
WOIWSHO MOG 
WOINSHO MOG 
TWOINWSHOD MOG 
WOINWSHOD MOG 
WOIWSHD MOG 
WOINWSHOD MOG 
WOIWAHOD MOG 


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NOLONINOLS 40 NMOL 
NOLONINOLS 40 NMOL 
NOLONINOLS 40 NMOL 
NOLONINOLS 4O NMOL 
NOLONINOLS 40 NMOL 
NOLONINOLS 40 NMOL 
NOLONINOLS 30 NMOL 
NOLONINOLS 40 NMOL 
NOLONINOLS 40 NMOL 
NOLONINOLS 30 NMOL 


Wan Ppunow s/d 


WOINSHO MOG 
WOINSHO MOG 
TWOINWSHS MOG 
WOINSHO MOG 
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A2 
1992-93 Disposal Season 


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A3 
1993-94 Disposal Season 
(No Disposal Reported) 


A4 
1994-95 Disposal Season 


Dredged Material Targeted for the NDA 94 Buoy 


Permittee 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 


Pernnittee 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 
DEPT/NAVY - PIER 17 


Project 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVCR 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 


Project 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 
THAMES RIVER 


Oisparea 


NLDS 
NLDS 
NLOS 
NLDS 
NLDS 
NLDS 
NLOS 
NLDS 
NLDS 
NLDOS 
NLDS 
NLDS 
NLDS 
NLDS 


Disparea 
NLDS 
NLDS 
NLDS 
NLDS 
NLOS 
NLDS 
NLOS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLOS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLOS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 
NLDS 


Dispdate 
26-Dec-94 
27-Dec-94 
27-Dec-94 
28-Dec-94 
28-Dec-94 
29-Dec-94 
30-Dec-94 
30-Dec-94 
31-Dec-94 

2-Jan-95 
3-Jan-95 
4Jan-95 
S-Jan-95 
S-Jan-95 


Dispdate 
17-Jan-95 
17-Jan-95 
18-Jan-95 
18-Jan-95 
19-Jan-95 
19-Jan-95 
20-Jan-95 
20-Jan-95 
21-Jan-95 
23-Jan-95 
24-Jan-95 
24-Jan-95 
24-Jan-95 
25-Jan-95 
25-Jan-95 
26-Jan-95 
26-Jan-95 
27-Jan-95 
27-Jan-95 
27-Jan-95 
28-Jan-95 
30-Jan-95 
31-Jan-95 
31-Jan-95 

1-Feb-95 
2-Feb-95 
2-Feb-95 
3-Feb-95 
3-Feb-95 
4-Feb-95 
7-Feb-95 
8-Feb-95 
8-Feb-95 
8-Feb-95 
9-Feb-95 
9-Feb-95 
11-Feb-95 
13-Feb-95 
13-Feb-95 
14-Feb-95 
14-Feb-95 


Lat deg Lat min Long Deg Long Min DisBuoy DirBuoy CYVol 


30° Ww 850 
30° Ww 850 
7s Ss 850) 
30° Ww 850) 
30° Ww 850) 
uy S) 850) 
75° Ss 850) 
7s S) 850) 
40' Ss 850) 
75° Ss 750 
50° SE 700) 
80° S 700 
65° S 850) 
65° S 700 
Total Pier 17 UDM at the NDA 94 Buoy yd? 11350} 
Total Pier 17 UDM at the NDA 94 Buoy m? _—8678.21 
Lat deg Lat min Long Deg Long Min DisBuoy DirBuoy CYVol 
40° E 900 
50° SW 900 
30° Ss 900 
20° SE 900 
30° S) 900) 
20° Ss 900 
50’ Ss 900) 
50° SE 900 
90° SE 900! 
50° S) 900) 
50' SSE 900 
40° SW 900 
40° Ss 900} 
50° Ss 900] 
30° Ss 900 
60' Ss 900) 
50° SE 900 
70° SSW 900) 
50° Ss 900) 
90" Ss 900) 
90° Ss 900) 
70' S 900) 
50° Ss 900 
60° SE 900) 
50° SE 900 
75 SW 900 
100° Ss 900) 
100° cS) 900) 
100° Ss 900 
100° Ss 900 
300° Ss 900 
300° SSE 900) 
300° Ss 900 
300° Ss 900 
300° Ss 900 
200° S) 900) 
100 Ss 900) 
75 Ss 900 
75 S) 900) 
300° SSW 900 
300° Ss 900) 


Total Pier 17 CDM at the NDA 94 Buoy yd? 68278: 
Total Pier 17 CDM at the NDA 94 Buoy m? 52205. 


Total Volume of Matenal deposited at the NDA 94 Buoy m? 79628. 
Total Volume of Matenal deposited at the NDA 94 Buoy yd? 60883.7 


Dredged Material Targeted for the USCG Buoy 


Permittee a a 
US COAST GUARD ACADEMY EAGLE PIER 10-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 10-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 10-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 10-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 11-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 11-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 11-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 11-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 12-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 12-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 12-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 13-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 13-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 13-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 14-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 14-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 14-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 15-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 15-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 18-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 18-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 18-Jan-95 
Total Eagle Pier UDM at the USCG Buoy yd? 
Total Eagle Pier UDM at the USCG Buoy m?_ 43352.8 


a Lat min 
US COAST GUARD ACADEMY EAGLE PIER 18-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 18-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 19-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 19-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 19-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 19-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 19-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 20-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 20-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 20-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 21-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 21-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 21-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 21-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 22-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 22-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 22-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 22-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 23-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 23-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 23-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 23-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 24-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 24-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 24-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 24-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 24-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 25-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 25-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 25-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 25-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 26-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 26-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 26-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 26-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 27-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 27-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 27-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 28-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 28-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 28-Jan-95 
US COAST GUARD ACADEMY EAGLE PIER 28-Jan-95 


Total Eagle Pier CDM at the USCG Buoy yd? 26225 

Total Eagle Pier CDM at the USCG Buoy m? 200519 
Total Volume of Material Deposited at the USCG Buoy yd? 3189: 
Total Volume of Maternal Deposited at the USCG Buoy m? 243871 


A5 
1995-96 Disposal Season 


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600-16 STM SL ost $2 ChB b @ BEE 91 lp oF ocz oo! oor 96/90/60) 
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6eo Olle 4tM  B ost G2l -6E6 b rd 2st OF ty ot oe6 oog 029 = 96/10/60 
60-01-16 SfM 8 002 00l 66 2 zs€ 91 ip or oo1z Spelt SpLt 96/62/20 
6E0-01-16 JIM OB 002 G@l heb cd BEE OL bp o1 008 cg oer 96/82/20 
6E00l-16 4fM 8 o0z 00L 66 b 2 zs 91 ip oO Spoe S\6L edt 96/87/20 
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419 ‘NOLOHO 'H3AIN SSNVHL 
419 'NOGNO1M3N 2 NOLOWD 'Y3AIY SANVHL 
419 'NOGNO1 M3N 8 NOLOHD 'Y3AIY S3NVHL 
419 'NOGNO1 M3N 8 NOLOHO 'H3AIY S3NVHL 
419 'NOGNO1 M3N 8 NOLOHD 'H3AIY S3NVHL 
419 ‘NOGNO1M3N 8 NOLOHD 'Y3AIY SSNVHL 
419 'NOGNO1 M3N 8 NOLOUD 'Y3AIY SSNVHL 

19 'NOLOHD 'H3AId SSNVHL 
19 'NOONO1 M3N 2 NOLOWD 'Y3AIH SSNWHL 
19 'NOGNO1 M3N 8 NOLOHD 'Y3AIY SSWVHL 
19 'NOGNO7 M3N 3 NOLOYD 'W3AIH SSNVHL 

410 'NOLOUD 'Y3AIN SAWVHL 
19 ‘NOONO1 M3N 8 NOLOHD 'H3AIY SANVHL 
19 'NOONO1 M3N 8 NOLOHD 'Y3AIY SANVHL 
49 'NOGNO7 MAN 8 NOLOHD 'H3AIW SAWWHL 
419 'NOGNO1 M3N 3 NOLOYD 'Y3AIY SSNVHL 
419 'NOGNO1M3N # NOLOWD 'Y3AIY SANVHL 
410 'NOONO1 M3N 8 NOLOWD 'Y3AIH SSNVHL 
19 'NOONO7 M3N 8 NOLOWD 'Y3AIH SSNVHL 
19 'NOONO1 M3N 2 NOLOHD 'Y3AIH SSWWHL 
19 ‘NOGNO1M3N 8 NOLOHD 'H3AIY SSNWHL 
19 'NOONO1M3N 2 NOLOHD ‘USAIN SSWVHL 
19 'NOONO1M3N 2 NOLOWD 'H3AIH S3NVHL 
19 'NOONO1M3N 8 NOLOHO 'Y3AIN SSWVHL 
49 'NOGNO1M3N # NOLOHD 'Y3AIY SANVHL 
10 'NOOGNO1M3N 9 NOLOUD 'Y3AIU SSNWHL 
19 'NOGNO17M3N 2 NOLOWD 'Y3AIY SSWVHL 
410 ‘'NOGNO1M3N 8 NOLOHD 'Y3AIY SSNWHL 
19 'NOGNO1 M3N 2 NOLOWD 'Y3AIH SSWWHL 
49 'NOGNO7 M3N 3 NOLOHD 'Y3AIY SSWNVH1 
19 'NOGNO1 M3N ® NOLOHD 'Y3AIH SSWWHL 
19 'NOGNO1M3N 8 NOLOUD 'H3AIY SSWVHL 


AIOMVWAS - AAVN/Ld30 
STOMV3S - AAWN/1d30 
J TOMVSS - AAVN/1d30 
SIOMVSS - AAVN/1d30, 
ATOMVAS - AAVN/1d30 
STOMVSS - AAVN/1d30 
STOMVAS - AAVN/1d30 
STOMVIS - AAVN/Ld30 
ASTOMVAS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
STOMVW3S - AAVN/1d30 
ATOMVAS * AAVN/1d30 
STOMVAS - AAVN/1d30 
A TOMVAS - AAVN/1d30 
STOMVWAS - AAVN/1d30 
AIOMVAS - AAVN/1d30 
ATOMVAS - AAWN/1d30 
STOMVSS - AAWN/1d30 
STOMVAS - AAWN/1d30 
J TOMVAS - AAVN/1d30 
STOMWAS - AAVN/Ld30 

Lt Yald - AAWN/1d30 
STOMVAS - AAVN/1d30 
SIOMVAS - AAVN/1d30 
STOMVWAS - AAVN/Ld30 
STOMVAS - AAVN/Ld30 
ATOMVAS - AAVN/1d30 
ATOMVWAS - AAVN/1d30 
STOMWAS - AAVN/1d30 
JTOMW3S - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVWSS - AAWN/1d30 
STOMVSS - AAVN/1d30 
STOMWAS - AAVN/1d30 
SIOMVWAS - AAVN/1d30, 

2) Y3ld - AAVN/1d30 
STOMVW AS - AAVN/1d30 
STOMV3S - AAVN/1d30 
SIOMVAS - AAWN/1d30 
SIOMVWAS - AAVN/1d30 

2) Y3ld - AAVN/Ld3G 
SIOMVWAS - AAVN/Ld30 
SIOMVAS - AAVN/1d3G0 
A TOMWSS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
STOMVAS - AAWN/1d30 
AIOMVAS - AAWN/1d30 

Zt Wald - AAVN/1d3G 
ATOMVAS - AAVN/1d30 
STOMVSS - AAVN/1d30 
SOMVAS - AAVN/1d30 

2) Y3ld - AAVN/1d30 
ATOMVSS - AAVN/1d30 
A TOMVAS - AAVN/1d30 
STOMVSS - AAVN/1d30 
STOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
ATOMVWAS - AAWN/1d30 
ATOMVAS - AAWNW/1d30 
SIOMVAS - AAVN/1d30 
SIOMVAS - AAVN/1d30 
A IOMVAS - AAVN/1d30 
STOMVWAS - AAVN/1d30 
STOMVWAS - AAVN/1d30 
JIOMVW3S - AAVN/1d30 
JTOMVAS - AAVN/1d30 
A TOMVIS - AAVN/1d30 
STOMVSS - AAVNW/1d30 
STOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
SIOMVAS - AAVN/1d30 
STOMVWAS - AAVN/1d30 


ASNI 14VHYG TOAAD HI AONGYS NINDNOT D3GDNO7 NIWLV1 DAGiv1 1SIG 3WILLay aWildsia 3Wiid3d 31vddsid 


103fOud 


Y3AIY OLLSAW WNASNW 1uOdV3S OLLSAW 
Y3AIY DILSAW WOSSNW LuOdv3S OILSAW 
Y3AIY OILSAW WN3SNW LuOdW3S OLLSAW 
YBAIY DILSANW_WN3SNW LYOdW3S OILSAW 


B000Z661 bOOEL 
ee000z661 POOEL 
€e000z661 Oocet 


80002661 666e1 
EB000Z661 86621 
€B000z661 26621 
80002661 96621 
80002661 6671 
80002661 06621 
EB000Z661 68621 
€80002661 €6621 
€e000cs6 1 y662l 
80002661 6624 
€80002661 16621 
80002661 98621 
€80002661 88621 
£80002661 L862 
€80002661 S862) 
€80002661 veecl 
€80002661 £8621 
£8000Z661 ee6el 
6S610r661 00621 
80002661 61621 
€80002661 82621 
€e000c661 S621 
€e000c661 08621 
ee000z661 94621 
80002661 \e621 
€e000z661 L262 
8000661 12624 
€B000Z661 22624 
©B000z661 e262 
80002661 pl62h 
80002661 69621 


©80002661 0/621 
6S6L0r661 66821 
80002661 S96e1 


EB000Z661 89621 
80002661 9621 
€e000c661 996el 
6S610r661 86821 


8000661 196c1 
8000661 6s6c1 
€80002661 e962 


80002661 0962) 
80002661 9621 
80002661 y962t 
6S610r661 26825 
80002661 9S621 
€e8000c661 Ls624 
80002661 eséel 
6S610F661 96821 
80002661 pséel 
80002661 Ssé2h 
80002661 es6ch 
80002661 2S621 


©8000Z661 6r6el 
€80002661 Lpé2t 
80007661 (S621 
€80002661 erect 
e000z661 Os62 
€80002661 9ré2t 
80002661 Sr621 
€80002661 pr6ZL 
e8000z661 br6et 
eB000z661 Er62t 
80002661 Oré2i 
€80002661 C474) 


€8000z661 Be6z1 
80002661 6E6c1 


B000Z661 Le621 
€8000Z661 9E621 
L8L00SE61 s7zeel 
28L00S66t peek 
282005661 eee2 
482005661 c2eek 


S3LLUNY3ad 


WON LINYSd Gl dAWS 


O10 rE 
€90°01-16 
€90-01-16 
90-01-16 
€90°01-16 
€90-01-16 
€90°01-16 
9010-6 
BOLO 6 
€90°01-16 
€90°01-16 
€90-01-16 
€90°01-16 
€90-01-16 
€90°01-t6 
€90-01-16 
€90-01-16 
€90-01-16 
€90°01-16 
€90°01-16 
€90-01-16 
910-10 66 
€90-01- 
€90°01- 
€90-01- 
SPO Ol- 
€90-01- 
€90°01 
SbO-Ol- 
910 10-6 
ShO-O1-16 
SO 01-16 
SPO-O1-16 
SPO-O1-46 
SrO-O1-16 
910-10 r6 
Oo rE 
SPO-O1-16 
GPO-O1-16 
SPO-O1-16 
GPO-O1-16 
SpO-O1-16 
SbOO1-16 
O10 re 
910106 
9LO1O re 
SbO-O1-16 
SbO-O1-16 
SPO-OL-16 
SPO-O1-16 
910106 
91010 r6 
SbOO1-16 
ShO-O1-16 
SbO-O1-16 
SbO-O1-16 
9010 F6 
ShOOL-16 
SbO-O1-16 
SpO-O1-16 
SPO-O1-16 
SrO-O1-16 
90106 
9101066 
SbO-O1-16 
SrO-O1-16 
SPO-O1-16 
SbO-O1-16 
SbO-01-16 
SPO-O1-16 
SPO O1-16 
SPO-O1-16 
SPO O1-16 
Spo Ol-16 
SPO O1-16 
SPO-OL-16 
SbO-01-16 


oozzoz¥zzog zzzogzzzz00z0zz 


LlE91 
6r ol 
blp ol 
SP OL 
OPP OL 
brol 
82r 91 
dp gt 
pol 
IS 9L 
6Lb 94 
ZF 91 
6rr Ol 
chp ob 
terol 
rol 
69h OL 
9p OL 
6hr OL 
Shp ol 
ver ob 
b6r 91 
22S 9l 
2S 9 
1S 9h 
ger ol 
8P ol 
Sop 91 
Sep ot 
er 9 
LIS OL 
60S 91 
Sol 
6r 91 
Spot 
88P 91 
eer ol 
SOS 91 
966 91 
b6p Ot 
62h 91 
69p 91 
pop OL 
l6p 91 
v6p 91 
r6r 91 
sor 
Sp Ot 
6bp Ol 
lbp ot 
bisgot 
6p 91 
6Sp 91 
BSP 91 
9Sb OL 
Sp ol 
26p 9t 
20S 91 
909 91 
So 
9Zb OL 
\9r 9b 
d6r 91 
bor OL 
sol 
cep OL 
6Lp 91 
Sop OL 
SOS 91 
6h 91 
6b Ot 
elb ol 
b9p Ot 
bos ot 
S6P 91 
Lip ot 
Slp ot 


G6/Lb/b4 
S6/Lb/14 
SE/LU/NA 
S6/LN/L4 
SB/Lb/bA 
S6/LI/LN 
SE/Lb/bN 
S6/OL/th 
S6AI/IL 
S6I/Ih 
SEALE 
S6AI/tE 
S6AI/IS 
S6/OI/th 
S6/I/tE 
S6/SI/bh 
S6/PI/Lh 
SEP /th 
S6/PI/LE 
S6/P L/L 
S6/PI/LE 
SEEN 
S6EL/LL 
S6EN/LE 
SEEL/bL 
SBEN/LL 
S6AL/IL 
S6fEL/tE 
S6EN/Ih 
G6/EA/UA 
S6/LI/EE 
S6/EL/LE 
SE/EN/EE 
S6/LV/UL 
S6/EA/LE 
S6/O1/Lh 
S6/O1/th 
S6/Ob/th 
S6/O1/14 
S6/OL/tE 
G6/OI/LL 
S6/ON/th 
S6/O1/bh 
S6/60/11 
S6/60/11 
S6/60/11 
S6/60/41 
S6/6O/14 
S6/60/t1 
S6/60/11 
S6/RO/11 
S6/B0/11 
S6/B0/14 
S6/B0/L1 
S6/B0/11 
S6/RO/Lh 
S6/LO/LL 
S6/LO/LE 
S6/LO/LA 
S6/LO/t1 
S6/LO/LE 
S6/LO/b1 
S6/0/11 
S6/90/11 
S6/90/t1 
S6AO/IL 
S6A0/11 
S6A0/11 
S6/SO/IL 
S6/SO/h1 
S6/SO/b I 
S6/SO/11 
S6/SO/L I 
S6/bO/LE 
S6/0/11 
S6/vO/b 1 
S6/PO/1 1 


10 'NOLOHD 'H3AIY SANVHL 
419 'NOGNO7 M3N 8 NOLOHD 'Y3AIY S3NVHL 
19 ‘NOGNO1 M3N ? NOLOHD 'W3AIY SSNWHL 
19 'NOGNO1M3N 3 NOLOUD ‘H3AIY S3NVHL 
19 'NOQNO7 M3N 3 NOLOHD 'Y3AIY S3NVHL 
19 'NOGNO1M3N 8 NOLOHD 'H3AIY SSNVHL 
19 'NOGNO1M3N 3 NOLOHD ‘H3AIY SSWVHL 

19 'NOLOUD 'H3AIY SSWVHL 

19 'NOLOYD 'Y3AIY SSNWHL 
10 'NOGNO1M3N 3 NOLOYD 'H3AIY SSNVHL 
419 'NOGNO7M3N 8 NOLOHD ‘'H3AIH SSNVHL 
419 'NOGNO1M3N 8 NOLOYDS 'H3AIN SSNWHL 
49 'NOGNO7M3N 8 NOLOHD ‘'H3AIH S3NWHL 
419 'NOGNO1 M3N 8 NOLOUYD 'H3AIY SSNVHL 
49 'NOGNO1M3N 3 NOLOHD ‘H3AIY SSAWHL 
419 'NOGNO7 M3N 8 NOLOHD ‘H3AIH SSWWHL 
19 'NOGNO7M3N 8 NOLOWD 'H3AIN SSNWHL 
49 'NOGNO7 M3N 8 NOLOHD 'H3AIH SSWWHL 
419 'NOGNO7 M3N 8 NOLOHO 'H3AIY SSNWHL 
19 ‘NOGNO1M3N 2 NOLOYD 'H3AIY SANVHL 
19 'NOGNO1 M3N 8 NOLOHD 'Y3AIH SANVHL 

19 'NOLOHO 'H3AIN S3WVHL 
19 'NOGNO1M3N 8 NOLOHD 'Y3AIN SANVHL 
19 'NOGNO1M3N-3 NOLOYD 'H3AIY S3NVHL 
19 'NOGNO1M3N 3 NOLOHD 'H3AIy S3NVHL 
419 'NOGNO7 M3N 8 NOLOUD 'H3AIY S3NVHL 
19 'NOGNO1M3N 3 NOLOHD 'H3AIN SSNVHL 
19 'NOGNO7M3N 8 NOLOYD 'H3AIN S3WVHL 
19 'NOGNO1M3N 3 NOLOWD 'H3AIN S3NVHL 

19 'NOLOUDS 'H3AIY SSWVHL 
19 'NOGNO1M3N 8 NOLOHD ‘W3AIY S3NVHL 
419 'NOGNO1 M3N 8 NOLOUD 'H3AIY SSNVHL 
10 ‘NOGNO7 M3N 8 NOLOUD ‘H3AIY S3WVHL 
19 'NOGNO7M3N 8 NOLOHD 'Y3AIN SANVHL 
19 'NOGNO1M3N 8 NOLOHD 'H3AIH S3AVHL 

19 'NOLOUD 'Y3AIN SSNVHL 

19 'NOLOUD ‘H3AIH SSNWHL 
19 'NOGNO1M3N 8 NOLOHD 'H3AIN S3WVHL 
10 'NOGNO7M3N 3 NOLOHD 'Y3AIY SAWVHL 
419 'NOONO7MAN 8 NOLOYD ‘'Y3AIY SSNWHL 
19 'NOGNO1M3N 3 NOLOHD 'W3AIY SSNVHL 
10 'NOGNO7 M3N 8 NOLOHD 'H3AIN SAWVHL 
19 'NOONO7M3N 8 NOLOUD 'H3AIY SSNWHL 

19 'NOLOHD 'H3AIN SAWNVHL 

19 'NOLOYD 'U3AIY SSWWHL 

19 'NOLOHD 'H3AIY SSNVHL 
10 'NOGNO7 M3N 8 NOLOHD 'Y3AIY SSWVHL 
419 'NOONO7 M3N 8 NOLOHD 'W3AIY SANVHL 
40 ‘NOONO1M3N 3 NOLOHD 'H3AIN SSNVHL 
19 'NOGNO1M3N 8 NOLOUD 'W3AIY SAWVHL 

419 'NOLOUD 'Y3AIY SSWVHL 

49 ‘NOLOHD 'U3AIY SSWVHL 
419 'NOGNO7 M3N 8 NOLOYD 'H3AIY SSWNVHL 
19 'NOGNO7M3N 8 NOLOHD 'H3AIY SANVHL 
19 'NOGNO1M3N 8 NOLOWD 'H3AIY SAWWHL 
10 'NOGNO17M3N 8 NOLOWD 'H3AIN S3WVHL 

419 'NOLOUD 'Y3AId SSWVHL 
19 ‘NOONO7M3N 8 NOLOYD 'Y3AIN SSNVHL 
19 'NOGNO7M3N 8 NOLOYD 'H3AIY SSWNVHL 
419 'NOGNO7M3N 8 NOLOHD ‘H3AIH S3WWHL 
19 'NOGNO7M3N 8 NOLOUD 'H3AIN SSNVHL 
19 'NOGNO17 M3N 8 NOLOHD 'H3AIN S3NVHL 

10 'NOLOWD 'Y3AIH SANVHL 

10 'NOLOUD 'N3AIY SSNVHL 
19 'NOGNO1M3N 9 NOLOYD 'H3AIN SSWVHL 
410 'NOGNO7 M3N 8 NOLOYD 'Y3AIN SSNVHL 
419 'NOGNO1M3N 8 NOLOYD ‘H3AIY SSWVHL 
19 'NOGNO7 M3N 8 NOLOHD 'Y3AIN SSNVHL 
40 'NOONO1 M3N 8 NOLOHD 'U3AIN SANVHL 
19 'NOONO7M3N 8 NOLOWD 'H3AIH SSWVHL 
419 'NOGNO7M3N 8 NOLOWD 'H3AIY SSNVHL 
10 'NOGNO7 M3N 8 NOLOWD 'Y3AIY S3WVHL 
19 'NOGNO1M3N ? NOLOUD 'Y3AIY SANVHL 
19 'NOGNO7 MAN ? NOLOHD 'Y3AIN SSNVHL 
19 'NOGNO1M3N ? NOLOUD 'Y3AIY SSNVHL 
19 'NOGNO7M3N 3 NOLOUD 'H3AIN SSNVHL 
19 'NOONO1M3N 3 NOLOYD ‘Y3AIY S3NVHL 


Lb ald 
ATOMV3S - 
STOMVSS - 
SYOMV3S - 


SYOMV3S 
STOMV3S 


SIOMVAS - 


2) ald 


2) Wald - 


ATOMV3S 
AS TOMVAS 
JYOMV3S 
STOMV3S 
AYOMV3S 


STOMVW3S - 


STOMVAS 
ATOMV3S 
JTOMV3S 
ATOMV3S 


STOMVAS ~ 
AIOMVAS - 
LL YAld - 


ATOMV3S 


JTOMV3S 
ATOMV3S - 
SIOMVIS - 


STOMV3S 
AS TOMV3S 
ATOMV3S 


Zt YAld - 


A TOMVAS 


ATOMV3S - 


ATOMV3S 


STOMVAS - 
STOMVWAS - 


Zt b3ld 


Lb Y3ld - 
ATOMVWAS - 
ATOMVSS 


AIOMV3S 


ATOMVAS - 
STOMV3S - 
ATOMVAS - 
Li Wald - 
2) 3ld- 
dt Y3ld- 
ATOMVSS - 
ATOMVAS - 
A TOMVAS - 


SIOMVAS 
Lt Yald 


Li YAld - 
STOMVSS * 
STOMVAS - 


AYOMV3S 


ATOMV3S - 
Zt Y3ld- 


ATOMVSS 
SIOMV3S 


ATOMVSS * 
SIOMV3S - 
ATOMVSS 

Zt Wald - 

Lt Y3ld - 
STOMVAS - 
ATOMVSS - 
A OMVWAS - 
STOMV SS - 
STOMV3S - 
ATOMVS3S - 
ATOMV SS - 
STOMVSS * 
ATOMVAS - AAVN/1d 350 
ATOMVWAS - AAYN/1d30 
STOMV3S - AAVN/1d30 
ATOMV3S - AAVN/1d30 
AIOMVAS - AAVN/1d30 


AAVN/1d30 
AAWN/1d30 
AAWN/1d30 
XAWN/1d30 
AAWN/1d3G0 
AAVN/1d30 
AAVN/1d30 
AAVN/1d30 
AAVN/1d30 
AAWN/1d30 
AAVN/1d30, 
AAWN/1d30 
AAVN/1d30 
AAWN/1d30 
AAVN/1d30 
AAVN/1d30, 
AAVN/1d3aG 
AAWN/1d30 
AAWN/1d3G0 
AAWN/1d30 
AAWN/1d30 
AAVN/1d30, 
AAVN/1d30, 
AAWN/1d30 
AAVN/1d30 
AAWN/1d30 
AAWN/1d30 
AAWN/1d30 
AAWN/1d30 
AAWN/1d30 
AAVN/1d30 
AAWN/1d30 
AAWN/1d30 
AAWN/1d30 
AAWN/1d30 
AAWN/1d30, 
AAVN/1d3G 
AAWN/1d30 
ANWN/1d30, 
AAVN/1d30 
AAWN/1d30 
AAVN/1d30 
AAVN/1d30 
AAVN/1d30, 
AAVN/1d30 
AAWN/1d30 
AAWN/1d30 
AAVN/1d30 
AAVN/1d350 
MAVN/1d30 
AAWN/1d30 
AAVN/1d30 
AAWN/1d30 
AMWN/1d30 
AAWN/Ld30 
AAVN/1d30 
AAWN/1d50 
AAWN/1d3G 
AAVN/1d30 
AAVN/Ld30 
AAWN/1d 350 
AAWN/1d30 
AWN/1d30 
AAVN/1d3G 
AAVN/1d30, 
AAWN/1d30, 
AAWN/1d30 
AAYN/1d30 
AAVN/1d30 
AAVN/1d3aG, 
AAVYN/1d30 
AAWN/1d30 


6S610r661 
80002661 
€B000Z661 
EB000Z66t 
80007661 
€B000z661 
8000661 
6S610r661 
6S610r661 
80007661 
€8000Z661 
80002661 
€80002661 
€8000z661 
80007661 
80002661 
ee000z66+ 
80002661 
€8000¢661 
ee000z66! 
80002661 
6S610r661 
€B0002661 
€80002661 
80002661 
B000ZE61 
©80002661 
80002661 
€80002661 
6S610r661 
€80002661 
€80002661 
€80002661 
80002661 
80002661 
6S610r661 
6S610r661 
€80002661 
80002661 
€8000Z661 
80002661 
©B000Z661 
80002661 
6S610r66) 
6S610P661 
6S6L0r661 
B000Z661 
€80002661 
€80002661 
€e000z661 
65610661 
6S610r661 
B000Z661 
€80002661 
80002661 
€80002661 
6S610r661 
80002661 
80002661 
80002661 
80002661 
80002661 
6S610r661 
6S610P661 
80007661 
80007661 
€8000z661 
80002661 
80002661 
90002661 
80002661 
80002661 
80002665 
80002661 
80002661 
80002661 
8000665 


€90-01-16 
€30° 01-16 
€90-01-16 
£90-01-16 
€90-01-16 
910 tO rs 
910-106 
€90-01-16 
910-10 r6 
910 10-6 
€90°01-16 
91010 r6 
910 10-6 
€90°01-16 
€90°01-16 
€90°01-16 
81010 re 
910 10-66 
SbO-01-16 
€90°01-16 
€90-01-16 
€90°01-16 
91010 F6 
9O1O re 
SbOO1-16 
SpO-O1-16 
SPO 01-16 
S¥O- 01-56 
SrO-O1-16 
SO 01-16 
910106 
SPO O1-16 
SPO O1-16 
SpO-Ol-16 
SPO O1-16 
SPO OL-N6 
SPO-O1-16 
SPO 01-16 
SrO 01-16 
SpO- 01-16 
SPO O1-16 


910 10-66 
S10 10-6 
SPO-O1-16 
SPO O1-16 
SPO-O1-16 
SbOO1-16 
SPO OL-16 
910 10-6 
910-1066 
SPO-O1-16 
SpO-O1-16 
€90-01-16 
SPO-O1-16 
SbO-O1-16 
SPO-OL-16 
910 10-6 
910° 10-66 
€90-01-16 
90-01-16 
€90°01-16 
€90-01-16 
€90-01-16 


0012 


6S 91 
6lp 91 
Llp ot 
epor 
vip OL 
9Sr ol 
9Spol 
frp ol 
dpor 
BSP OL 
Sep ot 
BSP OL 
Sr ol 
e6y Ol 
88r OL 
Spot 
dpor 
9Sp SL 
905 91 
avon 
SboL 
pyoL 
dbo 
Sp Ol 
60S 91 
66 Ot 
6p 91 
SBP Ot 
QP 91 
Ble ol 
Sb Ot 
bigot 
80S 9 
66h 91 
66h 91 
6p 91 
bp oh 
sis got 
SISoh 
€0S 91 
SSp OL 
db 9oL 
8Sb OL 
tis ol 
l6p 91 
GLb OL 
89b OL 
esp Ot 
Shp OL 
8Sb OL 
66r OL 
66p 9b 
Sep ol 
cop 9b 
Sp 91 
deo. 
bop 91 
6p 91 
tZp 9b 
99b 91 
99P OL 
Lop 91 
edb ol 
ivory 
6h 91 
cer ot 
L991 
SOP OL 
eSp Ot 
Sbp Ol 
dp oO. 
9SP OL 
Sor 
S6p 91 
6r 91 
Sip ot 
bre ot 


S6feo/el 
s6/eoreh 
S6/cOrel 
s6/eo/el 
sé/co/el 
S6/OE/tb 
SBE 
6/62/11 
S6/ee/tt 
sereett 
sereztt 
S6/L2/Lb 
S6ILZ/b 
S6/LE/LL 
S6/L/b 
S6/L/tt 
S6/ez/ih 
see 
S692 th 
seoztt 
serait 
seeett 
SErSe/bt 
S6/S2bh 
S6/SZ/tb 
S6/SZ/bt 
S6/se/t tb 
SE/S2/t 
S6/Se/tt 
S6/Se/bh 
S6/re/h 4 
S6me/b 
S6/Pe/b 
S6/PO/bb 
S6reeht 
S6/Pe/th 
S6/Pe/t 4 
S6EC/tL 
SEEC/II 
SEE 
sefeeth 
S6/ee/tb 
S6/e2/i4 
S6/eesth 
S6/ee/bb 
S6/ee/bb 
S6/ee/th 
S6/CC/tL 
S6/ee/th 
SE/besbh 
SE/KE/E 
S6/LZ/EL 
SE/be/b 
S6/LC/LS 
SE/b2/bb 
SE/02/ tt 
S6/0Z/tt 
S6/02/tt 
S6/02/ bh 
S6/02/bt 
S6/02/tb 
S6/0Z/ tb 
S6BI/IE 
S6/BI/tb 
SEE I/LL 
S6/BI/tb 
S6/6N/b 
S6/6I/bb 
G6/6E/bb 
SE/BL/LE 
SBI 
Seats 
S6/at/Lt 
S6/Ob/tb 
S6/BI/bE 
S6Al/ih 
SEAL 


419 'NOGNO7M3N 8 NOLOWD 'H3AIH SSNVHL 
419 ‘NOGNO1 M3N 3 NOLOHD 'Y3AIH SSNVHL 
19 'NOGNO1 M3N 8 NOLOWD 'H3AIH SSNVHL 
419 'NOGNO1M3N 8 NOLOHD 'H3AIN SSWVHL 
49 'NOGNO1 M3N 8 NOLOHD 'H3AIH SSNVHL 

419 ‘NOLOHD 'H3AIH SSWVHL 

410 'NOLOHD 'H3AIY SSNVHL 
19 'NOGNO1M3N 8 NOLOUD '3AIY SSWVHL 

410 ‘NOLOHD 'H3AIY SSWVHL 

419 'NOLOUD 'U3AIY SANVHL 
419 'NOGNO1 M3N 8 NOLOHD ‘Y3AIN SSNVHL 

49 'NOLOHD 'H3AIN SSNVHL 

410 'NOLOHD 'H3AId SSNVHL 
419 'NOGNO1 M3N 8 NOLOHD 'Y3AIY SANVHL 
10 'NOGNO17M3N 3 NOLOHD ‘H3AIH SSWVHL 
19 'NOGNO7 MAN 8 NOLOHD 'H3AIH SANVHL 

19 'NOLOWD 'H3AIU S3NVHL 

19 'NOLOUD 'W3AIN SANVHL 
19 'NOGNO17 M3N 3 NOLOWD ‘H3AIN SSWWHL 
19 'NOGNO1M3N 8 NOLOYD 'Y3AIY S3SNWHL 
19 'NOGNO7M3N 8 NOLOWD ‘Y3AIH SSNVHL 
19 'NOGNO7 M3N 8 NOLOWD 'H3AIH SSNVHL 

19 'NOLOUD ‘W3AIN S3NVHL 

19 'NOLOHD 'H3AId SSNVHL 
19 'NOGNO1M3N 3 NOLOUD 'H3AIN S3SWVHL 
419 'NOGNO1M3N 8 NOLOHO 'H3AIY SANVHL 
419 'NOGNO1 M3N 8 NOLOHD 'H3AIY SANVHL 
19 'NOGNO1M3N 8 NOLOYD 'H3AIY SSNVHL 
10 'NOGNO1M3N 8 NOLOUD ‘H3AIY SSWVHL 
419 'NOGNO1M3N 8 NOLOUD ‘H3AIY SSNVHL 

19 'NOLOHD 'H3AIY SSNWHL 
19 'NOGNO1M3N 3 NOLOHO 'H3AIY SSNVHL 
19 'NOONO1M3N 8 NOLOHO 'H3AIY SSNVHL 
410 'NOONO7 M3N 8 NOLOHD 'H3AIY S3NVHL 
19 'NOGNO1M3N 8 NOLOHD 'H3AIN SSNVH1L 
19 'NOONO7 MAN 8 NOLOHD 'H3AIN SAWVHL 
190 'NOGNO1 M3N 8 NOLOUD 'Y3AIH SSNVHL 
10 'NOGNO7M3N 8 NOLOHO 'H3AIH SSWWHL 
19 'NOGNOT M3N 8 NOLOWD 'Y3AIY SANVHL 
10 'NOGNO7M3N 8 NOLOUD 'H3AI4 SSWVHL 
19 'NOONO7 M3N 8 NOLOHD 'H3AIY SSNVHL 

19 'NOLOYD 'Y3AIY S3SNVHL 

19 'NOLOYD 'H3AIY S3WNVHI 
19 'NOGNO1M3N 8 NOLOHO 'H3AI¥ SSWWHL 
19 'NOGNO7M3N 8 NOLOHO 'H3AIN SSNVHL 
419 'NOGNO7 M3N 8 NOLOUD 'Y3AIY SSWWHL 
19 'NOGNO1M3N 8 NOLOYO 'H3AIN SSAWHL 
419 'NOGNO7 M3N 8 NOLOHD 'H3AIN SSNVHL 
19 'NOGNO7 M3N  NOLOHD 'H3AIH SSWVHL 

19 'NOLOHO 'H3AIY SSWWHL 
LO 'NOGNO7M3N 3 NOLOYD ‘USAIN S3NVHL 
19 ‘NOGNO1M3N 8 NOLOHD ‘H3AIN SSNVHL 
419 ‘NOGNO1M3N 8 NOLOWD 'Y3AIY SSNVHL 
19 'NOGNO1M3N 8 NOLOUD ‘H3AIY SSWVHL 
19 'NOGNO1 M3N 8 NOLOUD 'Y3AId SANVHL 

419 'NOLOUD 'H3AIY SSWVHL 

19 'NOLOUD 'H3AIY SSNVHL 
19 'NOGNO1M3N 8 NOLOWD 'Y3AIH SSWWHL 
19 'NOGNO1M3N 8 NOLOUD 'Y3AIY SANVHL 
419 'NOGNO7 M3N # NOLOHD 'H3AIH SAWVHL 
19 'NOGNO1M3N 8 NOLOHD 'Y3AIY SSWVHL 
19 'NOGNO7M3N 8 NOLOUD 'Y3AIH SSNVHL 

410 'NOLOHD 'H3AIY SSNVH1 

19 'NOLOUD 'W3AIY SSNVHL 
10 'NOGNO7M3N 8 NOLOYD 'H3AIN SSNVWHL 
19 'NOGNO7 M3N 8 NOLOHD 'W3AIN SANVHL 
10 'NOGNO7M3N 8 NOLOYD 'H3AIH SSNVHL 
10 'NOGNO1M3N 8 NOLOUD 'Y3AIY SSWVHL 
19 'NOGNO7M3N 8 NOLOHD ‘Y3AIN S3SNVHL 
19 'NOGNO1M3N 8 NOLOUD 'H3AIY SSNVHL 

40 'NOLOUD 'H3AIH SSNVHL 

410 'NOLOHD 'H3AIY SSNVHL 
19 'NOGNO7M3N 8 NOLOUD 'H3AIY SSWVHL 
19 'NOGNO7M3N 8 NOLOWD 'Y3AIY SSWVHL 
19 'NOGNO7M3N 8 NOLOHD 'H3AI¥ SSNWHL 
419 'NOGNO1M3N 8 NOLOYD 'Y3AIH SSNVHL 
19 'NOONO7M3N 8 NOLOYD 'H3AIN S3WWHL 


STOMVSS - AAVN/1d30 
SIOMVSS - AAVN/1d30 
STOMVAS - AAWN/1d3G 
STIOMVSS - AAVNW/1d30 
STOMVWSS - AAWN/1d30 

2) Y3ld - AAWN/1d30 

21 W3ld - AAWN/1d30 
SIOMVSS - AAVN/1d30 

2) Wald - AAVN/1d30, 

21 W3ld - AAVN/1d30 
SIOMVWAS - AAVN/1d30 

Zt Y3ld - AAVN/1d30 

Zt Y3Id - AAWN/1da0 
ATOMVWAS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
STOMWAS - AAVN/1d30 

Zt Wald - AAWN/1d30 

21 W3ld - AAVN/1d30 
ATOMVAS - AAVN/1d30 
SIOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d3G 

Zt 3d - AAVN/1d30 

Zt W3ld - AAVN/1d3G 
STOMVAS - AAVN/1d30 
SIOMVAS - AAVN/1d30 
STOMVAS = AAVN/1d35G 
ATOMVAS - AAVN/1d30 
STOMVAS - AAWN/1d350 
STOMVWAS - AAWN/1d30 

Zt H3ld - AAVN/1d30 
ATOMVWAS - AAVN/1d30 
A TOMVSS - AAVN/1d350 
ATOMVSS - AAVN/1d30 
STOMVSS - AAVN/1d30 
STOMVW3S - AAVN/1d30 
STOMVWAS - AAVN/1d30 
ATOMVSS > AAVN/1d30 
STOMVSS - AAVN/1d30 
STOMVSS > AAVN/1d350 
STOMVAS - AAVN/1d30 

2b Ald - AAVN/1d30 

2) Y3Id - AAVN/1d30 
STOMVAS - AAWN/1d30 
STOMWAS - AAWN/1d350 
SIOMVAS - AAWN/1d30 
ATOMVSS - AAVN/1d30 
STOMVSS - AAVN/1d30 
ATOMVAS - AAVN/1d3G 

dt W3ld - AAVN/1d30 
ATIOMVSS - AAWN/1d30 
A TOMV AS - AAVN/1d30 
STOMVWAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 

Zt ald - AAVNW/1d30 

Zt Wald - AAWW/1d30 
STOMVIS - AAVN/1d30 
STOMV3S - AAVN/1d30 
STOMVSS - AAVN/1d350 
ATOMVSS - AAVN/1d30 
SOMVAS - AAWN/1d350 

Lt Ald - AAVNW/1d30 

2) Y3ld - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVAS > AAVN/1d30 
STOMVSS * AAVN/1d350 
A TOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d350 

2) Y3ld - AAVN/1d30 

2) W3ld - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMW3S - AAWN/1d30 
JIOMVAS - AAVN/1d30 
JTOMV SS - AAVN/1d3a0 


€B000Z661 
€80002661 
80007661 
80007661 
80002661 
6S610r661 
6S610r661 
€80002661 
6S610r661 
6S610r661 
€B000z661 
6S610r661 
6S6L0r661 
€80002661 
80007661 
80002661 
6S610r661 
6S610r661 
€80002661 
80002661 
80002661 
EB000Z661 
6S610r661 
6S61L0r661 
80002661 
80002661 
80002661 
80002661 
80002661 
80002661 
6S610r661 
80002661 
€80002661 
€80002661 
€80002661 
EB000Z66! 
€80002661 
80002661 
80002661 
80002661 
€80002661 
6S610r66! 
6S610r661 
80002661 
80002661 
€80002661 
80002661 
80002661 
80007661 
6S610r661 
€B000Z661 
e©8000z66t 
80002661 
80007661 
80002661 
6S610r661 
6S610r66! 
80002661 
80002661 
80002661 
80002661 
80002661 
6S610r661 
6S610r661 
80002661 
80002661 
80002661 
€B000Z661 
©80002661 
80002661 
6S610r661 
6S6 1066) 
80002661 
80002661 
80002661 
€B000Z661 
€e000c661 


XAYN SN) 
AAYN S11) 
AAYN SN) 
AVN'S 1) 
AAYN SN) 
AAVWN SN) 
AYN SN) 
AAYN SN) 
AAYN SN) 
AAVN SN} 
AAYN SN} 
AAVN SN) 
AAYN SN) 
AVN SN 
MYN SN 
AVN SN) 
AAWN SN! 
AAYN SN) 
AAVN SN) 
AAVN S/N) 
AAYN SN) 
AAYN SN) 
AAYN SN) 
AVN SN) 
XAYN SN) 
AAYN SN) 
AAYN SN 
AYN SN) 
AWN SN 
AYN SN) 
AAWN SN) 
AAYN SN 
AAYN SN) 
AYN SN) 
AVN SN 
AAVN SN) 
AAYN SN 
AVN SN) 
AAYN SN) 
AYN SN 
AAVN SN) 
MAYN SN) 
AAVN SN 
AAYN SN 
AAYN SN 
MAYN SN 
AYN SN 
AYN SN) 
AYN SN 
AAWN SN) 
AAYN SN) 
MAYN SN 
AYN SN) 
AYN SN 
AAYN SN) 
AAYN SN) 
MYN SN 
AYN SN 
AYN SN 
AAWN SN) 
AYN SN) 
MVN SN) 
AYN SN 
AAYN SN) 
AAVN SN) 
AAYN S11) 
AAYN SN) 
AAYN SN) 
AAYN SN) 
MAVN SN 
AAYN SN 
AYN SN 
AVN SN 
AWN SN) 
AAVN SN) 
AAYN SN) 
AAYN SN 


SPOOL-16 
SbhO-O1-16 
GPO-Ol-l6 
GbO-O1-16 
SPO O1-16 
SPO 01-16 
SPO-O1-16 
ShO-O1-16 
SbO-O1-16 
Sho 01-16 
SPO-O1-16 
SPO-01-16 
SPO-O1-16 
SbO-O1-16 
SpO-O1-16 
SPO-OL-16 
€90-01-16 
€90-01-16 
SPO-O1-16 
€90°01-16 
€90°01-16 
€90-01-16 
€90-01-16 
€90-01-16 
€90-01-16 
€90-01-16 
€90'01-16 
€90-01-16 
€90-01-16 
€90-01-16 
€90-01-16 
€90-01-16 
€90-01-16 
€90-01-16 
€90°01-16 
€90°0t-16 
€90°01-16 
€90-01-16 
€9001-16 
€90°01-16 
€90-01-16 
€90-01-16 
€90-01-10 
€90-01-16 
€90-01-16 
€90-01-16 
€90-01-16 
€90-'01-16 
SPOOL 16 
€90-01-16 
€90°01-16 
£90 01-16 
GbO-O1-16 
SPO-O1-16 
SPO-O1-16 
SbO-01-16 
SPO-O1-t6 
SrO-01-16 
SPO 01-16 
SbO-O1-16 
SbO-O1-16 
SPO O1-16 
SbO-OL-16 
SPO O1-16 
SbO-O1-16 
SPO O1-16 
SPO-O1-16 
SbO'O1-16 
SbO-OL-16 
SbO 01-16 
SPO-O1-16 
SPO-O1-16 
ShO-O1-16 
SPO-01-16 
GbO-O1-16 
SPO-O1-16 
€90-°01-16 


ro) 
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2° 
ie) 
oo) 


BIS OL 
dis 9t 
pis ol 
Oro 
lesan 
Bisel 
SOS Ot 
48y 91 
€9p 91 
Sp OL 
pro 
825 Ob 
esor 
L6y 91 
ergot 
69p 91 
9p 91 

Sp ol 
ebb ot 
pS Ol 
ego 
BISOL 
eis ot 
ISO} 
60S 91 
80S 91 
SSb ol 
ves al 
825 91 
92S 91 
22S 9 
905 91 
L9b 9b 
9p 91 
dis aot 
94p 91 
9p ot 
Orr OL 
tps ot 
ego 
PISOL 
his 9b 
€Lp ol 
Sep ot 
esol 
sol 

6Zy 91 
vp ot 
6rS 91 
iS9L 
GLP OL 
9Sb 91 
BOS 91 
966 91 
6p Ol 
99P OF 
ver ol 
dep or 
eISaL 
Zisgot 
9Isgol 
£05 91 
68b 91 
9p 91 
esol 
68b OL 
bes ot 
405 91 
bisel 
Lis ot 
ses ol 
per gol 
99p 91 
tos 91 
Zig gob 
bos ot 
6p 91 


S6el/eh 
S661 /eh 
S6fel/e 
S6/61/2h 
S62 
seaie 
S6el/el 
serait 
serai/et 
serei/et 
S6/at/eh 
S6/Lb/24 
S6/LI/2 
S6/LI/eL 
S6/LI/e4 
S6/LL/Zh 
S6/LI/2h 
S6/Lb/2h 
G6/LI/eh 
Ss6Al/el 
S6Al/el 
S6/9I/el 
S6I/el 
S6Al/el 
S6/I/el 
S6aiiet 
seie 
S6/Si/el 
S6/Si/eh 
S6/Sh/el 
G6/SI/el 
S6si/el 
S6/SI/2h 
S6/SI/2h 
S6/Pi/eh 
S6/PI/21 
S6/Ph/eh 
S6/Pb/eb 
s6et/el 
S6et/et 
S6I/e1 
S6EI/e1 
S6fEl/eb 
S6fEL/eL 
S6/el/el 
S6/el/eL 
S6/et/el 
S6/eN/eh 
SE/L Ab 
S6/tb/eb 
Gest i/eh 
G6/L Lie 
S6/O1/eh 
S6/01/eh 
S6/O1/21 
S6/O1/2L 
S6/ol/eb 
S6/Ol/et 
S6/60/21 
S6/60/21 
S6/60/21 
S6/60/21 
S601 
S6/60/21 
semoet 
seeo/zl 
S6/L0/21 
S6/L/21 
S6/0/21 
S6/90/21 
S6/SO/21 
S6/sO/et 
S6/SO/21 
S6/rO/eb 
S6EOeL 
S6EO/Ct 
S6EO/21 


19 'NOGNO7 M3N 8 NOLOHD 'H3AIN SANVHL 
19 'NOONO7M3N 8 NOLOHD ‘Y3AIY S3NVHL 
10 'NOGNO7 M3N 8 NOLOHD 'Y3AIY SSNVHL 
19 'NOGNO7 M3N 9 NOLOYD 'H3AIY S3NVHL 
19 'NOONO7 M3N 8 NOLOYO 'Y3AIY SANVHL 
10 'NOONO7 M3N 8 NOLOHD ‘H3AIY SSNVHL 
19 ‘NOGNO1M3N 9 NOLOHD 'H3AIH S3NWHL 
19 'NOGNO7 M3N 8 NOLOHD 'Y3AIY SSNVHL 
19 'NOGNO7 M3N 8 NOLOYD 'Y3AIH SSWVHL 
10 'NOGNO1M3N 8 NOLOUD 'Y3AIY SSNVHL 
19 'NOGNO7 M3N ® NOLOUD 'Y3AIH SSWVHL 
19 'NOGNO7 M3N 8 NOLOYD 'Y3AIY SANVHL 
419 'NOGNO7M3N 8 NOLOHD 'H3AIN SSWVHL 
419 'NOGNO7M3N 8 NOLOYD ‘Y3AIN SSNVHL 
19 'NOONO7 M3N 8 NOLOWD ‘Y3AIY SANWHL 
19 'NOGNO7 M3N 8 NOLOHD ‘W3AIH SSWVHL 
10 'NOGNO1M3N 8 NOLOHD 'Y3AIH S3WNVHL 
19 'NOGNO1M3N ® NOLOUD ‘H3AIY SANVHL 
19 'NOGNO7 M3N 8 NOLOHD ‘H3AIH S3NWHL 
419 'NOGNO1 MN ? NOLOHD 'Y3AIY SANVHL 
19 'NOONO7 M3N 8 NOLOHD 'Y3AIH SSNVHL 
19 'NOGNO7 M3N 8 NOLOUD ‘Y3AIY SAWVHL 
19 'NOGNO7 M3N 8 NOLOHD ‘H3AIN SSNVHL 
19 'NOGNO7 M3N 8 NOLOUD 'Y3AIY SANVHL 
40 'NOGNO7 M3N 8 NOLOYD 'H3AIY SSWVHL 
10 'NOGNO7M3N 2 NOLOWD 'Y3AIY SANVHL 
19 'NOGNO1M3N 8 NOLOHD 'H3AIY SANWHL 
19 'NOONO1 M3N 8 NOLOHD 'W3AIY SANVHL 
10 'NOGNO7 M3N 8 NOLOYD 'Y3AIH SSWVHL 
19 'NOGNO7 M3N 8 NOLOUD 'Y3AIN S3WVHL 
10 'NOGNO7 M3N ® NOLOUD 'H3AIH SSNVHL 
10 'NOQNO7 M3N 8 NOLOYD 'H3AIY SSWNVHL 
19 'NOGNO7 M3N 8 NOLOUD 'H3AIH SSNVHL 
19 'NOGNO7 M3N 8 NOLOUD ‘Y3AIH SAWVHL 
19 'NOGNO7 M3N ® NOLOHD 'Y3AIY SAWNVHL 
19 'NOGNO1M3N 8 NOLOUD 'Y3AIY SSNVHL 
19 'NOGNO7 M3N 8 NOLOHD 'H3AIH SSNVHL 
10 'NOGNO7 M3N 8 NOLOHD 'H3AIY SSNVHL 
10 'NOGNO7 M3N 8 NOLOYO 'H3AIY SANVHL 
19 'NOGNO1M3N ® NOLOHD ‘Y3AIH SSWVHL 
19 'NOGNO1 M3N ® NOLOHD ‘Y3AIY S3NVHL 
10 'NOGNO7 M3N 8 NOLOHD ‘Y3AIH S3WVHL 
49 'NOGNO1M3N 8 NOLOUD 'U3AIN SSNVHL 
49 'NOGNO1M3N 8 NOLOHD 'Y3AIN SSNVHL 
10 'NOGNO7M3N ® NOLOYD 'H3AIH SSNVHL 
410 'NOGNO7 M3N 8 NOLOUD 'Y3AIH SSANVHL 
10 'NOGNO7 M3N 8 NOLOYD 'Y3AIU SSNVHL 
19 'NOGNO7 M3N ® NOLOYD ‘Y3AIH S3NVHL 
19 ‘NOGNO7 M3N ® NOLOHD 'Y3AIH SSNWHL 
410 'NOGNO1M3N 8 NOLOUD 'Y3AIN SSNVHL 
410 'NOONO1M3N 3 NOLOWS 'Y3AIY SSNVHL 
10 'NOGNO7M3N 8 NOLOHD ‘H3AIY SSWWHL 
19 'NOGNO1 M3N 8 NOLOWD 'W3AIY SSNVHL 
19 'NOONO7M3N 8 NOLOYD ‘H3AIY SSNVHL 
19 'NOGNO1M3N 3 NOLOWO ‘H3AIY SANVHL 
19 'NOGNO1M3N 8 NOLOHD ‘H3AId SSNVHL 
19 'NOGNO7 M3N 8 NOLOHD ‘H3AIY SSAWHL 
19 'NOGNO1M3N 8 NOLOUD 'Y3AIN SSNVHL 
19 'NOGNO7 M3N 8 NOLOHD 'H3AIH SSWWHL 
19 'NOGNO7 M3N 9 NOLOYD 'H3AIH SSNWHL 
10 'NOGNO7 M3N 8 NOLOHD 'Y3AIY SSNVHL 
410 'NOGNO1M3N 8 NOLOUD 'Y3AIN SSWVHL 
419 'NOONO1M3N 3 NOLOHO 'Y3AIY SSNVHL 
19 'NOGNO7 MAN ® NOLOHD 'H3AIN SSNVHL 
10 'NOGNO1M3N ? NOLOYD 'H3AIN SSNVHL 
19 'NOGNO1M3N # NOLOUD 'H3AIN SSNVHL 
19 'NOGNO7M3N 8 NOLOHO 'H3AIY SANVHL 
10 'NOGNO7 M3N 8 NOLOHD '3AIY S3WVHL 
19 'NOGNO7 M3N ® NOLOHD 'H3AIN S3NVHL 
10 'NOGNO7M3N 8 NOLOHD 'H3AIH SSNVHL 
19 'NOGNO7 M3N 9 NOLOWDO 'H3AIY SSNVHL 
419 'NOGNO1M3N ? NOLOUD 'Y3AIH SSWVHL 
19 'NOGNO17 M3N 8 NOLO 'H3AIY SSNVHL 
19 'NOGNO1M3N 9 NOLOHDO ‘Y3AId SSWVHL 
10 'NOGNO7 MAN 8 NOLOHD ‘Y3AIN SSNVHL 
19 'NOGNOTM3N ? NOLOHD ‘Y3AIN SSWVHL 
19 ‘NOGNO7 M3N 8 NOLOUD 'H3AIN SSWVHL 


ATOMVSS - AAVN/1d30 
A TOMVS3S - AAVN/1d30 
ATOMV3S - AAVN/1d30 
STOMV IS - AAVN/1d30 
ATOMV3IS - AAVN/1d30. 
ATOMWSS - AAVN/1d30 
STIOMVAS - AAVNW/1d30 
ATOMV3S - AAVN/1d30 
ATOMV 3S - AAVN/1d30 
ATOMVAS - AAWN/1d30 
STOMVAS - AAVN/1d30 
SIOMVWAS - AAWN/1d30 
STOMV 3S - AAWN/1d30 
ATOMV3S - AAVN/1d3G 
STOMVAS - AAVN/1d30 
STOMVSS - AAVN/1d30 
STOMV3S - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
STOMV3S - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVWAS - AAVN/1d3G 
ATOMVAS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
AIOMVAS - AAVN/1d3G 
ATOMVAS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d350 
ATOMVAS - AAVN/1d30 
AIOMVSS - AAWN/1d30 
ATOMVSS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVW3S - AAWN/1d30 
STOMVWAS - AAWN/1d30 
STOMVAS - AAVN/1d30 
ATIOMVAS - AAWN/1d30 
JSTOMV AS - AAVN/1d30 
STIOMVAS - AAVN/1d30 
AS TOMVAS - AAVN/1d30 
SIOMWAS - AAWVN/1d30 
STOMVAS - AAVN/1d30 
STOMVWAS - AAVN/1d30 
ATOMVAS - AAWN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
STOMVAS © AAWN/1d30 
SIOMVAS - AAVN/1d30 
STOMVAS - AAWN/1d30 
ATOMVAS - AAWN/1d30 
STOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d3G 
STOMVWSS - AAVN/1d30 
STOMVSS - AAVN/1d30 
STOMVWAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
ATOMVA3S - AAVN/1d30 
ATOMVAS - AAWN/1d30 
ATOMVAS - AAVN/1d3G 
ATOMV3S - AAWN/1d30 
A TOMVSS - AAWN/1d30 
ATOMV3S - AAVN/1d50 
ATOMVSS - AAVN/1d30 
ATOMWAS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
STIOMVAS - AAVN/1d30 
SIOMVAS - AAVN/1d30 
ATOMVAS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
ATOMV AS - AAVN/1d30 
STOMWAS - AAWN/1d30 
STOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
AIOMVWAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
SIOMVAS - AAVN/1d30 


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SPO OL-16 
SPO O1-t6 
SPO O1-16 
SPO O1-16 
SrO-O1-16 
SpO-O1-16 
SpO-O1-16 
SbO-O1-16 
SpO-O1-16 
SbO-O1-16 
SbO 01-16 
SbO-O1-16 
SPO OL-16 
SrO-O1-16 
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SPO-O1-16 
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SPO O1-16 
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96/20/10 
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U3AIN SSNVHL 

19 NOONO1M&N 2 NOLOHD Lv Y3AIY SANVHL 
10 NOGNO7 M3N ? NOLOUD LV H3AIY SSWVHL 
419 NOGNO1 M3N ? NOLOHD Ly Y3AIY SSNVHL 
40 NOGNOTM3N 3 NOLOHD LV Y3AIY S3NVHL 
410 NOGNO1 MSN ? NOLOHD LV U3AIY SSNVHL 
19 NOGNO7 M3N 2 NOLOHD Lv H3AIN SSNVHL 
19 NOGNO7 M4N 8 NOLOUD LV H3AIN SSAVHL 
19 NOGNO7 M3N 2 NOLOUD LV Y3AIY SSNVHL 
49 NOGNO1 M3N 3 NOLOHD LV Y3AIY SSNVHL 
49 NOGNO1 M3N 3 NOLOUD LY Y3AIY SANVHL 
19 NOGNO7 M3N 3 NOLOHD LV H3AIY SSWVHL 
19 NOGNO1 MAN 3 NOLOUD Lv H3AIY SANVHL 
419 ‘NOLOYD 8 NOONO7 M3N 'H3AIY SSWWHL 
19 'NOLOYD 3 NOGNO7 MSN 'Y3AIY SSWVHL 
19 NOONO1M3N 2 NOLOYDS LV Y3AIN SAWWHL 
19 NOGNO71 M3N 8 NOLOHD LV Y3AIN SSWVHL 
19 NOGNO7 MAN 2 NOLOYS LV H3AIN SSNVWHL 
419 'NOLOYD 2 NOGNOT M3N 'Y3AIY SSWVHL 
410 ‘NOLOYS 3 NOGNOTM23N ‘Y3AIH SSWWHL 
410 ‘NOLOUD 8 NOGNO7 M3N 'Y3AIY S3WVHL 
10 'NOLOYD 8 NOGNOTM&N ‘H3AIY SSNVHL 
419 'NOLOYD 8 NOGNO7 M3N ‘Y3AIy SSNVHL 
10 'NOLOYD 3 NOONO7 MAN ‘'Y3AIY SAWNVWHL 
19 NOLOYD 8 NOGNO7 M3N 'Y3AIY SANVHL 
19 NOLOYD 3 NOGNOTM3N ‘Y3AIY SSNVHL 
19 NOLOUD 8 NOGNO7 M3N 'Y3AIY S3NVHL 
19 NOLOYO 8 NOGNOT M3N 'H3AIY SSNVHL 
19 NOLOYD 2 NOONO1 M3N 'Y3AIY SANVHL 
19 NOLOHD 8 NOGNOT M3N '83AIY SSWVHL 
19 NOLOYD 2 NOGNO1 M3N ‘Y3AId SSWVHL 
19 NOLOUD 8 NOGNOT M3N 'H3AIY SSWVHL 
10. NOLOYS 8 NOGNO7M3N ‘Y3AIY S3NVHL 
19 NOLOHD 8 NOGNO1 M3N ‘Y3AIH SAWNVHL 
19 NOLOHD 8 NOGNO7 M3N ‘83AIW SSNVHL 
19 NOLOYD 2 NOGNO7 M3N 'Y3AIY SANVHL 
19 NOLOYD 2 NOONO7 M3N '83AIY SSNVHL 
10 NOLOWS 3 NOONO7 M3N ‘Y3AIY SSNVHL 
19 NOLOYS 8 NOGNOT M3N 'Y3AIY SSNVHL 
19 NOLOWD 2 NOGNOT MSN 'Y3AIY SSWVHL 
10 NOLOHS 8 NOGNOTM3N ‘Y3AIY SSNVHL 
10 NOLOWD 8 NOGNO1 MSN 'Y3AIY SSWWHL 
19 NOLOHD 8 NOGNOT M3N 'W3AIH SSWVHL 
10 NOLOYD 3 NOGNO7 M3N ‘Y3AiY SSNVHL 
419 NOLOWD 3 NOGNOT MSN 'Y3AIY SSNVHL 
19 NOLOYD 8 NOONO1M3N 'Y3AIN SANVHL 
410 NOLOWD 8 NOONOT M3N 'Y3AIY SANVHL 
10 NOLOYD 8 NOGNO7 M3N ‘Y3AIY SANVHL 
419 NOLOWD 3 NOONO7 MSN ‘Y3AIY SSNVHL 
419 NOLOHD 8 NOGNOT M3N ‘USAIN SANVHL 
19 NOLOYD 8 NOGNOT M3N ‘Y3AIY SSWVHL 
19 NOLOYD 2? NOGNOT MSN ‘Y3AIY SSWWHL 
419 NOLOYD 3 NOGNO1 MAN ‘Y3AIY SSWVHL 
19 NOLOUD 2 NOGNOTM3N 'W3AId SSNVHL 
19 ‘NOGNO1 M3N 2 NOLOYD 'Y3AIY S3WVHL 
19 'NOGNO1M3N 8 NOLOUD 'W3AIN SSWVHL 
10 'NOGNO7 M3N 3 NOLOHD 'Y3AIH SANVHL 
40 ‘NOGNO1 M3N 8 NOLOYD ‘83AIY SAWVHL 
19 ‘'NOGNO71M3N 3 NOLOHD 'H3AIN SSWVHL 
49 'NOGNO1M3N 8 NOLOUD ‘Y3AIY SSNVHL 
19 'NOGNO1M3N 3 NOLOHD 'Y3AIY SSWVHL 
410 'NOGNO1 M3N 3 NOLOUO 'Y3AIY S3NVHL 
19 'NOGNO1M3N ? NOLOWD 'H3AIN SSWVHL 
10 'NOGNO1 M3N 9 NOLOHD 'Y3AIY SANVHL 
410 'NOGNO1 M3N 8 NOLOHO 'Y3AIY SSNVHL 
49 'NOGNO1M3N 3 NOLOHD 'Y3AIY S3NVHL 
10 'NOGNO1 M3N 8 NOLOUDS 'H3/AIY S3WVHL 
410 'NOGNO17M3N 8 NOLOYD 'Y3AIY SSWVHL 
410 'NOGNO7 M3N 8 NOLOUD 'Y3AIY SSWVHL 
19 'NOGNO1M3N 2 NOLOYD 'Y3AIN SSNVHL 
19 'NOONO1M3N ® NOLOWD ‘H3AIH S3AVHL 
19 'NOGNO1M3N 8 NOLOHD 'U3AIH SANVHL 
19 'NOGNO7 M3N 8 NOLOUD 'Y3AIY SANVHL 
19 'NOGNO1M3N 3 NOLOHD 'Y3AIW SAWVHL 
190 'NOGNO1 M3N 8 NOLOHD 'Y3AIY SSWVWHL 
419 'NOGNO1M3N 8 NOLOHD 'Y3AIY SSWVHL 
419 'NOGNO1 M3N 8 NOLOHD 'Y3AIY S3NVHL 


ATOMVWAS - AAVN/1d30 
STOMVAS - AAWN/1d30 
STOMVAS - AAWN/1d30 
STOMVWSS - AAVN/1da0 
STOMVSS - AAVN/1d30 
STOMVWAS - AAWN/1d30 
SIOMW3S - AAVN/1d30 
SIOMVWAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
STIOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
AJTOMVWSS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
JTOMV3S - AAWN/1d30 
ATOMV3S - AAVNW/1d3G 
STOMVAS - AAWN/1d30 
ATIOMVAS - AAWN/1d30 
STOMVAS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVAS - AAWN/1d30 
ATOMVSS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMVWAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVWAS - AAWN/1d30 
ATOMV 3S - AAVN/1d30 
ATOMWAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
AIOMVAS - AAWN/1d30 
STOMVAS - AAWN/1d30 
ATOMV3S - AAVN/1d3G 
ATOMV3S - AAVN/1d30 
A TOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMV3S - AAVN/1d30 
STOMV3S - AAVN/1d30 
ATOMV3S - AAVN/1d30 
JIOMVWAS - AAWN/1d30 
STOMVAS - AAVN/1d 50 
ATOMVAS - AAVN/1d30 
STOMVAS - AAVI/1d30 
ATOMV3S - AAVN/1d350 
A TOMVAS - AAVN/1d30 
ATOMV3S - AAWN/1d30 
ATOMVWSS - AAVN/1d30 
ATOMVSS - AAWN/1d30 
STOMV3S - AAVN/1d30 
SIOMV3S - AAVN/1d30 
ATOMV3S - AAVN/1d30 
SIOMVWAS > AAWN/1da0 
AIOMWAS - AAWN/1d30 
STOMVAS - AAVN/1d30 
ATOMVAS = AAVN/1d350 
STOMVAS - AAVNW/1d30 
ATOMV3S - AAVN/1d30 
JTOMV3S - AAVN/1d30 
ATOMVWAS * AAVN/1d30 
STOMVAS - AAVN/1d3G0 
ATOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
SIOMVSS - AAVN/1d30 
ATOMVSS - AAVN/1d3G 
ATOMVAS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
SIOMV3S - AAVN/1d30 
ATOMV3S - AAVN/1d30 
STOMV3S - AAVN/1d3G 
STOMV3S - AAVN/1d3G 
STOMVAS » AAVN/1d30 
SIOMVWAS - AAVN/1d30 
AIOMVWAS - AAVN/1d30 
ATOMV3S - AAVN/1d350 
ATOMVAS - AAVN/1d30 
SIOMVAS - AAVN/1d30 
ATOMWAS - AAVN/1d30 


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esp ol 
cep OL 
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sep 9oL 


Sid 


96/L1/10 
96/L1/10 
86/L1/10) 
96/L1/10 
96/L1/40 
96/91/10 
96/91/10 
96/91/10 
96/91/10) 
96/91/10) 
96/91/10 
96/91/10 
96/91/10 
96/91/10 
96/91/10 
9691/10 
96/S1/10) 
96/51/10 
96/51/10 
96/S1/10 
96/51/10 
96/51/10 
96/51/10 
86/51/10 
96/S1/10) 
96/51/10) 
96/F1/10) 
96/r1/10 
96/r 1/10 
96/h 1/10 
96/h 1/10 
96/r 1/10} 
96/F 1/10) 
96/> 1/10) 
96/F 1/10) 
96/P 1/10) 
Q6/b 1/10 
96/01/40 
96/E1/10 
96/61/10) 
96/E1/10 
96/E1/10 
96/61/10 
96/61/10 
96/1/10) 
96/E1/10 
96/61/10) 
96/1/10) 
96/61/10) 
96/01/10) 
86/21/10 
96/21/10 
96/21/10} 
96/21/40} 
96/21/40) 
96/14/10) 
96/14/10 
96/11/10) 
96/01/10 
96/60/10 
96/60/10 
96/60/10 
96/60/10 
96/60/10 
96/60/10 
96/80/10 
96/20/10) 
96/20/40) 
96/20/40) 
96/90/10) 
96/90/10; 
96/90/10) 
96/90/10) 
96/90/10} 
96/90/10) 
96/50/10 
96/50/10} 


Y3AIY SSWVHL 
Y3Ald SSNVHL 
Y3AIu SSWVHL 
Y3AId SSNWHL 
Y3AIY SSWVHL 
Y3AIN SANVHL 
Y3AIN SSNVHL 
W3AId SSWVHL 
SAIN SSNVHL 
Y3AIY SSWVWHL 
Y3AIY SSNVHL 
Y3AIN SSNVHL 
Y3AIH SSWVHL 
Y3AIN SSWVWHL 
Y3AIN SSWVHL 
Y3AIN SSNVHL 
Y3AIN SANVHL 
Y3AIN SSANVHL 
Y3AIH S3WVHL 
Y3AIN SSNVHL 
Y3AIY S3WVHL 
Y3AIH SANWHL 
Y3AIY SSWVHL 
Y3AIN SSNVHL 
Y3AIN SSNVHL 
Y3AIY SSNVHL 
Y3AId SSNWHL 
Y3AIN SSNVHL 
Y3AIN SSWWHL 
Y3AIN S3WWHL 
Y3AIW SANVHL 
Y3AIN SSWVWHL 
YSAIW SSWWHL 
Y3AIN SSWVHL 
Y3AIY SSNVHL 
USAIN SANVHL 
Y3AIN SSNVHL 
Y3AIW SSWWHL 
Y3AIW SSNWHL 
Y3AIy SSWWHL 
Y3Ald SSWWHL 
Y3AIN SSWVHL 
Y3AIN SAWVHL 
Y3AIy SSWVHL 
YSAlY SSWVHL 
SAIN SSAVWHL 
Y3AIH SSWWHL 
Y3AIY SSWVHL 
Y3AIY SANVHL 
Y3AIY SSWVHL 
Y3AIY SANVHL 
Y3AIN SSNWHL 
Y3AIN SSNVHL 
Y3AIN SSWVHL 
Y3AIN SAWWHL 
Y3AIY SSNVHL 
Y3AIH SANVHL 
Y3AIY SSNVHL 
Y3AIY SSNVWHL 
Y3AIY SSNVHL 
Y3AIY SSNVHI 
Y3AIY S3WVHL 
Y3AIN SANVHL 
Y3AIY SSWVHL 
Y3AIW SSWVHL 
Y3AIN SSWVHL 
Y3AIy SSNVWHL 
Y3AIN SANVHL 
Y3AIN SSWVHL 
Y3AI SANVHL 
Y3AIY SSWNVHL 
Y3AIY SANVHL 
Y3AIY SSNVHL 
Y3AIN SSWVHL 
419 NOGNO1 M3N 8 NOLOYS LV Y3AIN SSWVHL 
Y3AIb SSNWHL 
Y3AI¥ SSWVHL 


ATOMV3S - AAVN/Ld30 
ATOMVSS - AAVN/1d350 
SIOMVAS - AAVN/1d30 
ATOMVA]S - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMV3S - AAVN/1d30 
A TOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d3G 
ATOMV3S - AAVN/1d50 
ATOMVAS - AAVN/1d30 
ATOMVAS - AAWN/1d30 
ATOMVIS - AAVN/1d30 
ATOMVSS - AAVN/1d3G 
JTOMVIS - AAVN/1d3G 
STOMVS3S - AAVN/1d30 
STOMV3S - AAVN/1d30 
ATIOMVSS - AAVNW/1d30 
STOMVSS - AAVN/1d350 
STOMVAS - AAWN/1d30 
ATOMVIS - AAVN/1d3G0 
STOMVWAS - AAVN/1d30 
A TOMVWAS - AAVN/1d30 
J TOMVAS - AAVN/1d30 
ATOMVAS - AAWN/1d30 
ATOMVWAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVAS - AAWN/1d30 
ATOMVAS - AAVNW/1d30 
ATOMV3S - AAWN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVAS * AAVN/1d30 
ATOMVAS - AAWN/Ld30 
ATOMVAS - AAVN/1d30 
STOMVWAS - AAWN/1d30 
ATOMWAS - AAWN/1d3d 
STOMVA3S - AAVN/1d30 
ATOMVAS - AAVN/1d3G 
ATOMVAS - AAVN/1d30 
A TOMVAS - AAVN/1d30 
A TOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
A TOMVAS - AAVN/1d30 
AIOMVWAS - AAVN/1d30 
SIOMWAS - AAWN/1d30 
ATOMVAS - AAWN/1d30 
ATOMVW AS - AAWN/1d30 
AYOMV 3S - AAVN/1d30 
SIOMVAS - AAWN/1d30 
STOMVSS « AAWN/1d30 
STOMVAS * AAWN/1d30 
ATOMVWAS - AAVN/1d30 
ATOMV 3S - AAVN/1d30 
SIOMVAS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVWSS * AAVN/1d3G 
ATOMVAS + AAVN/Ld5G 
ATOMV IS - AAVN/Ld30 
SIOMVIS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d350 
ATOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d3G 
STOMV3S - AAVN/1d30 
A TOMVAS - AAVN/1d30 
SIOMVAS - AAVN/Ld30 
AIOMWAS - AAWN/1d30 
ATOMVWAS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVWAS - AAVN/1d30 
SIOMVWAS - AAVN/1d30 
ATOMVAS - AAVN/1d3G 
ATOMV3S * AAVN/1d30 
STOMVW3S - AAWN/1d30 
AIOMVWAS - AAVN/Ld30 


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€80002661 
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€80002661 
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80002661 
€80002661 
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EB000766+ 
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8000266) 
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S6rEL 
6erel 
C6rEL 
E6reL 
EOSEL 
SISEL 
orses 
biSeL 
OOSEL 
vOSEL 
EISeL 
SOSEL 
cIceL 
coset 
60SEL 
BOSEL 
PISEL 
6iseL 
BISEL 
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“eset 
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QLSEL 
ecseb 
Lesel 
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Gece 
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LESEL 
SESEL 
gece 
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OpSEL 
\pSet 
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vesel 
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6PSEL 
6esel 
gesel 
OPSEL 
LeSeEL 
epset 
CrseL 
eSSet 
esse 
SSSEL 
OSset 
Qpsel 
ySSEI 
LSSEL 
9Ssel 
6SSEL 
coset 
S9SEL 
e9sel 
O9Sel 
Loset 
8SSEL 
pOSEL 
g9Sel 
d9Se1 
e9SEt 
Odset 
2LSEb 
bLSEb 
SLbEL 
9Lvel 
9SeL 
vLSEL 
SiSet 


SbO-O1-16 
SPO-O1-16 
SPO O1-I6 
£90°01-16 
€90°01-16 
€90°01-16 
€90°01-16 
€90°01-16 
€90° 01-16 
€90 01-16 
€90-01-16 
€90°01-16 
€90-01°16 
SpO-01-16 
SPO 01-16 
£90-01-16 
SPO OL-16 
SPO O1-16 
€90°01-16 
SpO-O1-16 
€90- 01-16 
SbO-O1-16 
€90°01-16 
SPO 01-16 
SPO-O1-16 
€90-01-16 
€90°01-16 
SPO-01-16 
ShO-O1-16 
SPO-O1-16 
SPO O1-16 
€90-01-16 
€90°01-16 
€90-01-16 
€90°01-16 
SPO O1-16 
€90-01-16 
€90°01-16 
€90°01-16 
€90-01-16 
SbO-O1-16 
ShO-O1-16 
SPO-O1-16 
SpO-O1-16 
SpO-O1-16 
SPO O1-16 
€90°01-16 
€90-01-16 
SpO-Ol-16 
SPO O1-16 
SPO-O1-16 
€90°01-16 
€90-01-16 
SPO O1-16 
SvO-01-16 
€90° 01-16 
€90°01-16 
€90°01-16 
€90-01-16 
SbO-O1-16 
SPO OL-16 
£€90-01-16 
Sv0-01-16 
€90°01-16 
€90- 01-16 
SPO O16 
€90° 01-16 
ShO-O1-16 
€90-01-16 
90-01-16 
€90-01-16 
€90°01-16 
€90° 01-16 
SPO-O1-16 
90-01-16 
SPO O1-16 
€90:01-16 


006 


008 


Llp 9b 
esp Ol 
cer or 
tpl 
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6h ob 
6h 91 
bb Ot 
bb OL 
ble ot 
Pee ot 
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Sos 91 
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SPO 
pr OL 
br OL 
60p 91 
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€0S 91 
e9p 91 
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pol 

esol 
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€6€ OL 
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cps 91 
tes ol 
9p gl 
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tip ot 
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6rS 91 
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esol 
905 91 
gor 

dsp al 
bro 


96/52/10 
96/S2e/10 
96/92/10 
96/52/10) 
96/92/10) 
96/52/10 
86/52/10 
96/r2/10 
96/62/10 
86/P2/10 
96/2/10 
96/72/10) 
96/r2/10 
96/2/10) 
96/r2/10 
96/¢2/10) 
86/62/10 
96/€2/10) 
96/Ee/10 
96/2/10 
96/62/10) 
96/62/10 
96/62/10 
96/2/10) 
96/E2/10 
96/67/10 
96/22/10 
96/22/10 
96/22/10} 
96/2e/10 
96/22/10) 
96/22/10 
96/22/10 
96/22/10) 
96/12/10 
96/12/10) 
96/12/10 
96/12/40) 
96/12/10) 
96/12/10) 
96/2/10 
96/12/10 
96/b2/t0 
96/be/10 
96/02/10 
96/02/10) 
96/02/10 
96/02/10 
96/02/10 
96/02/10 
96/02/10 
96/02/10) 
96/61/10 
96/61/10) 
96/61/10 
96/61/10 
96/61/10) 
96/61/10 
96/61/10 
96/61/10 
96/61/10 
96/61/10) 
96/81/10) 
96/81/10) 
96/81/10 
96/81/10 
96/1/10 
96/81/10 
96/81/10 
96/81/10 
96/81/10 
96/81/10 
96/Lb/10 
96/L1/10 
96/21/10) 
86/L 1/10) 
DO/LI/10) 


Y3AIY SAWVHL 
Y3AIN SSNVHL 
Y3AIN SSNVHL 
Y3AId SSNVHL 
Y3AIY SSNVHL 
Y3AIY SANVWHL 
Y3AIN SSNVHL 
Y3AIN SSNVHL 
SAIN SSWVHL 
Y3AIN SSNVHL 
Y3AIN SSNVHL 
Y3AId SAWVHL 
Y3AIY SSWVHL 
Y3AIN SSWWHL 
Y3AIH S3WVHL 
Y3AIY SSWVHL 
Y3AIY SSNWHL 
Y3AIY SSNVHL 
Y3AIN SSWVHL 
Y3AIY SSWWHL 
Y3AId SAWVHL 
USAIN SSNVHL 
Y3AIN SSWVHL 
Y3AIN SSWWHL 
Y3AIY S3WVHL 
U3AIY SSNVHL 
Y3AId SAWVHL 
SAIN S3WVHL 
Y3AIU SSNVHL 
Y3AIN SSWVHL 
Y3AIN SSNVHL 
Y3AIN SSWVWHL 
Y3AIN SSNVHL 
Y3Aly SSWVHL 
Y3AIy SSWWHL 
SAIN SANVHL 
Y3AIN SSAWHL 
USAIN SSNVHL 
Y3AIN SSWVHL 
Y3AIN SSNVHL 
Y3AIN SSWVHL 
Y3AIM SSWVWHL 
Y3AIN SSWWHL 
Y3AIY SSNVHL 
Y3AIN SSNWHL 
Y3AIN SSWVHL 
Y3AIN SSNVHL 
Y3AIN SAWVHL 
Y3AIN SSNVHL 
Y3AIY SANVHL 
Y3AIY S3NVHL 
Y3AI4 SSWVHL 
Y3AIY SSNVHL 
Y3AIN SSNVHL 
Y3AId SSWVHL 
Y3AIN SSNVHL 
Y3AId SSANVHL 
Y3AIN SAWVHL 
Y3AId SSWVHL 
Y3AIN SSWVHL 
Y3AIN SSWWHL 
Y3AIY S3WVHL 
Y3AIY SSWVHL 
Y3AIN SSAVHL 
Y3AIN SSWWHL 
Y3AI8 SSNVHL 
Y3AIW SSWVHL 
Y3AIX SSWVHL 
Y3Ald SSWWHL 
Y3AIN S3SWVWHL 
Y3AIy S3WVHL 
Y3AIy SAWVHL 
Y3AIN SANVHL 
Y3AIY SSNVHL 
Y3AIY SSNVHL 
Y3AIY SSWVHL 
UAL SAAWHL 


AIOMVAS - AAVN/1d3G 
ATOMVAS - AAVN/1d50 
SIOMVAS - AAWN/1d30 
STOMVSS - AAVN/1d30 
ATOMS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMVAS - AAVN/1d30 
JTOMV3S - MAvN/1d30 
ATOMV3S * AAWN/1d3G 
STOMVW3S « AAVN/1d30 
SIOMVAS - AAVN/1d30 
SIOMVAS * AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVA3S - AAVN/1d30 
ATOMVAS - AAWN/1d30 
ATOMVSIS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
STOMVWAS - AAWN/1d3G0 
ATOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
AS TOMVAS - AAVN/1d30 
ATOMVAS - AAVN/Ld30 
A TOMVAS - AAVN/1d30 
SIOMVAS - AAVN/1d30 
SIOMVWAS - AAVN/1d 5G 
AIOMVAS - AAVN/1d30 
ATOMVWAS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d 3G 
ATOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMV3S - AAWN/1d30 
SIOMVAS - AAVN/1d30 
STOMYVAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMV3S - AAVN/1d 30 
STOMVWAS - AAWN/1d30 
SIOMVAS - AAWN/1d30 
AIOMVSS - AAVN/1d30 
ATOMWAS * AAVN/1d30 
ATOMVAS - AAVN/1d30 
AS TOMVAS * AAVN/1d30 
ATOMVWAS - AAWN/1d30 
ATOMVAS - AAVN/1d3G0 
AS TOMV 3S - AAVN/1d30 
STOMVAS - AAVN/1d30 
STOMVSS - AAWN/1d30 
STOMVSS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMVAS - AVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVAS - AAVN/1d 30 
ATOMVAS - AAVN/1d3G 
STOMVAS - AAVN/1d350 
ATOMVWAS - AAWN/1d30 
SIOMVAS - AAVNW/1d30 
ATOMV3S - AAVN/1d30 
AIOMVWAS = AAWN/1d30 
STOMV3S - AAVN/1d30 
SIOMV3S - AAVN/1d30 
STIOMVAS - MVN/1d30 
ATOMV 3S - AAVN/1d30 
SIOMVAS - AAWN/1d30 
ATOMV3S * AAVN/1d30 
ATOMVWAS * AAVN/Ld30 
ATOMVAS - AAVN/1d30 
ATOMVWAS = AAWN/1d30 
ATOMVWAS - AAWN/1d30 
ATOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d3G 
ATOMVAS - AAVN/1d30 
ATOMVIS * AAVN/1d30 
AIOMVAS - AAVN/ 1d 30, 


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SOPEL 
OLPeL 
6OvEL 
€Orel 
vOPEL 
8Orel 
66EE1 
BPEL 
€2pe 
Cbpes 
SIPEL 
ecpeb 
PIPE 
9ZPeEL 
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6IVEL 
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O2rel 
bevel 
SEreL 
bPpeL 
BErel 
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SPrel 
CrPrel 
6EreL 
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8Prel 
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HSPEL 
6SPEL 
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SSPEL 
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PSPEL 
dspet 
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BSPeL 
corel 
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SOPEL 
POPE 
BLPEL 
ELpel 
Zerel 
bZpel 
LOvEL 
B9PeEL 
OOPEL 
bLPEL 
69reL 
Lheh 
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Liver 
OBrel 
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6LvEL 
SPE 
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BBPEL 
86PEL 
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L6PEL 
SBPEL 


AAWN 


SOLO rE 
910-LO-b6 
910106 
SIO 10 r6 
SIO 10 r6 
810 10 r6 
B10 10 Fs 
BIO lO rs 
BIO 106 
€90°01-16 
1€0-01-16 
€90-01-16 
€90'01-16 
SPO-O1-16 
SbO-0!-16 
€90-01-16 
€90-01-16 
90-01-16 
€90-01-16 
€90°01-16 
SrO- 01-16 
SPO 01-16 
SPO-O1-16 
€90°01-16 
€90°01-16 
€90-01-1¢ 
90-01-16 
€90°01-16 
40-01-16 
€90-01-16 
LEO-O1-16 
SPO-O1-16 
SPO-O1-16 
€90°01-16 
SbO-Ol-16 
€90:01-16 
€90°01-16 
€90°01-16 
€90-01-16 
€90°01-16 
€90-01-16 
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€90-01-16 
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€90°01-16 
SPO 01-16 
SPO-O1-16 
SrO-O1-16 
SPO-O1-16 
SPO 01-16 
SPO O1-16 
SpO-O1-16 
SbO-O1-16 
SbO-O1-16 
€90°01-16 
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90> 91 
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96/51/10 
96/P 1/10 
96/r1/10 
96/E1/10 
96/61/10) 
96/61/10 
96/01/10 
96/01/10 
96/60/10 
96/1€/10} 
96/1€/10) 
Q6/bE/40 
96/LE/10 
96/1E/10 
96/LE/10 
96/1/10 
96/1E/10 
S6/LE/10 
96/1E/10 
96/0€/10 
96/0€/10 
96/0€/10 
96/0€/10 
96/08/10) 
96/0€/10) 
96/0€/10 
96/0€/10) 
96/08/10 
96/0€/40 
96/08/10 


96/62/10) 


96/82/10 
96/82/10) 
96/22/10) 
96/L2/10 
96/22/10) 
96/22/10 
96/2/40 
96/L2/10 
96/22/10 
96/2/10 
96/L2/40 
96/22/10) 
9692/10 
9692/10 


USAIN SSWVHL 
Y3AIY SSWVHL 
Y3AIY SSNVHL 
Y3AIN SSWVHL 
Y3AIY SSNVHL 
Y3AIY SSNVHL 
Y3AIY SSWVHL 
Y3AIN SSAWHL 
Y3AIY SSNVH1L 
USAIN SSWVHL 
Y3AIW SAWVHL 
Y3AIN SSNVHL 
Y3AIN SSWVWHL 
Y3AIY SSNVHL 
Y3AIY SSAVHL 
Y3AIY SSNVHL 
Y3AIY SSWVHL 
Y3AIY SSNVHL 
Y3AIY SSNVHL 
Y3AIY SANVHL 
Y3AIY SSNVHL 
Y3AIY SSWWHL 
Y3AIY SSWWHL 
Y3AIN SAWVHL 
Y3AIH SAWVHL 
Y3AId SAWVHL 
Y3AIY SSNVHL 
Y3AIY SSWVHL 
Y3AIY SAWVHL 
Y3AIY SSWVHL 
H3AIYN SSNWHL 
Y3AIY SANVHL 
YSAIY SAWVHL 
Y3AIYN SSWVHL 
Y3AIY SSNVHL 
Y3AIN SSWVHL 
Y3AIN SSNVHL 
Y3AId SSWVHL 
SAIN S3WVHL 
Y3AIY SSNVHL 
Y3AIY SSWWHL 
Y3AIY SSNVHL 
Y3AIX SSNVHL 
Y3AIY SSNVHL 
Y3AIN SSWWHL 
Y3AIY SSNVHL 
Y3AIW SANVHL 
Y3AIN SSNVHL 
Y3AIY SSWNVHL 
USAIN SSWVHL 
Y3AIY SSNWHL 
Y3AIN SSWVHL 
Y3AIY SANVHL 
Y3AIY SSNVHL 
Y3AIY SAWWHL 
Y3AIY SSNVHL 
Y3AIY SSNVHL 
Y3AIY SSNVHL 
Y3AIY SSNVHL 
Y3AIY SSNVHL 
Y3AIYN SSWVHL 
Y3AIH SSNVHL 
Y3AI¥ SSAVHL 
Y3AIY SSNVHL 
Y3AIY SSNVHL 
Y3AIY SSNVHL 
Y3AIN SSWVHL 
Y3AIH SSNVHL 
Y3AIN SSWVHL 
Y3AIN SSNWHL 
Y3AIN SSAVHL 
Y3AIN SSWWHL 
Y3AIY SSWVHL 
Y3AIy SSNVHL 
Y3AIW SSAVHL 
Y3AIN SSWVHL 
Y3AIN SSWVHL 


STOMVS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
SIOMV3S - AAVN/1d30 
STOMVSS - AAVN/1d3G 
ATOMV3S - AAVN/1d30 
STOMVAS - AAVNW/1d30 
ATOMVAS - AAVN/1d30 
JIOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
ATOMV SS - AAVN/1d30 
STOMVAS - AAWN/1d30 
STOMV3S - AAVN/1d30 
JTOMV3S - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVAS - AAVN/1d350 
ATOMV3S - AAVNW/1d30 
A TOMVSS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
STOMV3S > AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMV3S - AAWN/1d30 
ATOMVWAS - AAWN/1d30 
SIOMVAS - AAWN/1d30 
ATOMW3S * AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMWAS > AAVN/1d30 
A TOMVAS - AAVN/1d30 
STOMVWAS - AAVN/1d30 
STOMWSS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
STOMVIS - AAWN/1d30 
A IOMWAS - AAWN/1d30 
STOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
ATOMVAS - AAWN/1d30 
STOMVSS - AAVN/1d30 
STOMVWAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
STOMV3S - AAWN/1d30 
STOMVAS - AAYN/1d30 
ATOMVAS - AAWN/1d30 
STOMVAS - AAVN/1d30 
STOMVAS - AAVN/1d30 
ATOMVAS - AAVN/1d30 
ATOMVWAS - AAWN/1d30 
STOMVAS - AAVN/1d30 
ATOMWAS - AAVN/Ld30 
ATOMV3S - AAWN/1d30 
ATIOMVAS - AAWN/1d30 
SIOMVWAS * AAVN/1d30 
SIOMWAS - AAVN/1d30 
STOMVWAS - AAWN/1d30 
AIOMVWAS * AAWN/1d30 
AIOMWASS - AAVN/1d30 
ATOMVS - AAVN/1d30 
SIOMV3S - AAWN/1d30 
AIOMV3S - AAWN/1d30 
STOMV3S - AAVN/1d30 
ATOMVWAS - AAWN/1d30 
STOMVW3S - AAWN/1d30 
STOMVWSS - AAVN/1d30 
STOMVAS - AAWN/1d30 
STOMVSS - AAWN/1d30 
ATOMV3S - AAWN/1d30 
AIOMVAS - AAWN/1d30 
ATOMVWAS - AAYN/1d30 
ATOMVIS - AAWN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVSS - AAWN/1d30 
AIOMVWAS - AAVN/Ld30 
STOMVWAS - AAVN/1d30 


80002661 
€e000css! 
eeo00zs6 + 
80002661 
80002661 
8000766! 
80007661 
80002661 
80007661 
€e000c661 
800066! 
eeo00z66! 
eeo00zs6t 
€8000z661 
€e000z661 
€e000zs6+ 
©80002661 
80002661 
80002661 
€8000c661 
€8000Z661 
©8000¢66! 
80002661 
e8000z661 
€8000z661 
80002661 
80002661 
80002661 
80002661 
80002661 
80002661 
80002661 
ee000z66 1 
eeo0ocsst 
80002661 
€8000z661 
80002661 
80007665 
€e000zes + 
e8000z661 
80002661 
8000661 
€B0002661 
€8000z661 
80002661 
E8000Z661 
80002661 
EB000Z661 
€80002661 
80007661 
€80002661 
€80002661 
€e000z661 
€80002661 
€80002661 
e8000z66' 
EB000Z661 
€80002661 
80002661 
e€8000z66t 
800066! 
€80002661 
80002661 
80007661 
€e000z66! 
80002661 
€8000z661 
€80002661 
80002661 
EB000Z661 
€B000Z661 
80002661 
e8000z661 
80002661 
80002661 
80002661 
B000z661 


ozsege 


SLE6EZIL 
€9001-16 = =M1 EL 0002 
€9001-16 M1 eb soe 
€9001-16 = =M1 eb 0012 
€90 01-16 = =MT th Oork 
€9001-16 M1 wth OOrt 
€9001-16 = =M1 EL oset 
€9001-16 M1 et 0012 
€90:01-16 = M1 Cw. Oost 
SPOOl-IG =vWE th OOZt 
e900l-l16 MI 2b osel 
e9001-16 = =M1 get 0s02 
10-01-16 910 OL 008 
4€001-16 310 OF 008 
SPOOLI6 =VWF ESL oos! 
€9001:16 M1 .92b 0002 
SPOOI-IG =VWr .ObE SZSL 
€9001-16 = =M1 .9bb 0091 
€9001-16 =M1 CWA 0012 
9101066 990 OL 006 
9101066 990 01 SC 
9O1IOrG O00 Ob 006 
€9001-16 M7 .Eb osie 
E90 01-16 =MT EL 0002 
9101066 990 OF Seb 
SrOOL16 WWF Leet 068t 
SPOOlI6 =vwr tt 0091 
€90°01-16 M1 eb 0002 
SPOOL IG =vwr LE bE OOPL 
9101066 9900 6 oso 
€900b-16 = =MI Ob 0001 
9101066 990 G6 ose 
9010%6 900 OF 006 
9101066 990 6 002 
9101066 990 Ob 006 
9101066 900 OL 006 
9101066 990 01 006 
9101066 900 OL 006 
9101066 900 OF 008 
9O1OrE 990 Ot 008 


MSS 


lap OUIN|OA [E10 }, 


PA Aong Aaen Sr eur ie pef|isodep OWNIOA [BOL 


002 


96/21/10) 
961/10 
96/91/10 
961/10 
96/51/10 


Y3AIY SSWWHL 
SAI SSNVHL 
Y3AIW SAWWHL 
Y3AId SSWWHL 
Y3AId SSWWHL 
Y3AIN SSWWHL 
Y3AI8 SSNVHL 
Y3AId SSNVHL 
Y3AIY SSWVHL 
419 NOLOUD 8 NOGNOT M3N 'Y3AIY SSWVHL 
19 'NOONO7 M3N 3 NOLOHD 'H3AIN SAWVHL 
Y3AId SSAVHL 
USAIN SSNVWHL 
Y3AIY SSWVHL 
Y3AIN SSNVHL 
Y3AIN SSNWHL 
¥3AId SSWVHL 
Y3AIH SSNWHL 
Y3AId SSWVHL 
Y3AId SSAVHL 
Y3AIY SSWVHL 
Y3AIY SSNWHL 
Y3AIN SSWVHL 
Y3AIN SSNVHL 
Y3AIN SSWVHL 
Y3AIY SSWVHL 
Y3AIY SAWVHL 
Y3AIY SAWNVHL 
Y3AIN SSNVHL 
Y3AIN SSNVHL 
Y3AI¥ SSNVHL 
Y3AIN SSNVHL 
Y3AIY SSWVHL 
Y3AIY SSWVHL 
Y3Alu SSNWHL 
Y3Ald SSWWHL 
Y3AIH SSWVHL 
Y3AIW SSWWHL 
Y3AIY SSWVHL 


STOMVAS - AAVN/1d30 
AIOMVAS - AAVN/1d3G 
STOMVSS - AAVN/1d30 
ATOMVS3S - AAVN/1d30 
A TOMVAS - AAWN/1d30 
SIOMVAS - AAVN/1d350 
ATOMV3S - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVAS > AAWNW/1d30 
ATOMVAS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
STOMVS3S - AAVN/1d30 
ATOMV3S - AAVN/1d30 
ATOMVWAS - AAWN/1d3G 
STOMVAS - AAVN/1d350 
ATOMVAS - AAVN/1d30 
ATOMVWAS - AAVN/1d30 
ATOMVWAS - AAVN/1d30 
ATOMV3S - AAVN/1d30 
SIOMVWAS - AAVN/1d30 
STOMVW3S - AAVN/1d30 
ATOMVAS - AAVN/Ld30 
JTOMV3S - AAVN/1d30 
A TOMVAS - AAVN/1d30, 
ATOMVWAS - AAVN/1d30 
STIOMVWAS - AAVN/1d30 
STOMVAS - AAWN/1d3G 
ATOMVAS - AAVN/1d30 
SIOMVSS - AAV/1d30 
STOMV3S - AAVN/1d30 
ATOMV3S - AAVN/1d30 
STOMVAS - AAVN/1d30 
SIOMVAS - AAVN/id 3G 
STOMVAS - AAVN/1d3G 
JS TOMVAS - AAVN/1d30 
SIOMVAS - AAVN/1d30 
ATOMVSS - AAVN/1d30 
ATOMVSS - AAVN/ 1d 30 
SIOMVWAS - AAWN/1d50 


8000266! 
80002661 
€8000Z661 
€80002661 
€80002661 
80002661 
€B000Z661 
80002661 
80007661 
80002661 
B000z661 
80002661 
€e000Z661 
€80002661 
€B000Z6E61 
B000Z661 
B000z661 
80002661 
80002661 
80002661 
©80002661 
80002661 
80002661 
80002661 
€e000z661 
80002661 
e©e000z661 
€80002661 
80002661 
EB000Z661 
80002661 
B000CE6) 
€80002661 
€B000z661 
8000z661 
E8000Z661 
80002661 
€80002661 


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SOPEL 
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A6 
1996-97 Disposal Season 


6S tebe +W Zong 96-VGN eu) e pesodsig ewIn|OA 1e10L 

Slop «PA Aong 96-VON ey) e pesodsig euINjoA |e}0 1 
St0-0l-16 GOGH Ol 0s9 as 02 Bl6r el set ot be 6t Ore 240 Ol€e = L661/€2/S0} SONVYLN3S WNIHVW AWY34 SATVD 
S10-01-16 GG ot 002 MS OL 926 el 26091 Ip ce Sle elt GS22 = L661/22/G0) JONVYLN3 VNIEVW AYY34 SATV9D 
St0-0l-16 @Gu Ol os9 Ss Ob 906'b el 681 9r Ve 4 SSS} OSE SSIL 2661/¢2/S0)} SONVYLN3 VNIHVW AWYS4 SATV9D 
S10-0l-16 8dyu Ol O02 M 08 c86P el 86191 be <4 SSEL Ort OF6 = 2661/12/SO] SONVHILNA VNIHVW AWS SSTVD 
S10-01-16 Gqy oF 002 Ss SE yS6'P eL gZt9L bb ee Oprt Ste StOL 2661/12/S0} SONVYLN3 VNIEVW AWY34 S3TVD 
S10-01-16 GOH OF 004 ASS 0€ cheb aL 819} tp <4 O12 v 00ze = =Z661/12/S0) SONVYLNS VNINVW AYHS4 SATV9 
Gt0-€0:96 M3L 9 GL OO; 926° 2 246191 bb LAs oor Obee OEt2 4661/20/10) WNININOX90G OILNVIN 
S10-€0-96 M3L 6 O0e Oot 668 ¥ eZ sseot by ia} 0002 ost 009) 2661/20/10 WNININOXDOGC OILNVIN 


WNNLY39 


dSNI L4VUC_ TOAAD HIG AONGYHS NINONOT O3GDNO7 NIWLV7 OaG1v7 1Sia 


BWILLSY AWILdSIO 3Wild30 


3ivadsid 


4193f0uUd 


VNIHVW AYHS4 SATVD 
VNIYVAW Adu34 SATVD 
VNIYVW AWH34 SATVD 
VNIYVW AdH34 SATVD 
VNIYVW Adu334 SATV9D 
VNIYVAW AdY3S4 SSTV9D 
WNININOX900 SILNVIN 
WNININOX90” OILNVIN 
S3SLLIWH3d 


pEBZO9E6! 

PEBZOSEEI SE6¥L 96-VON 
bEBZO9EE) 9E6PhI 96-VON| 
peecO9661 6E6hl 96-VON 
pEBZOOEEL SE6rh1 96-VON 
vEBcO9661 2€6h1 96-VON 
2e8c09661 BELPL 96-VON 
LE8Z09661 ZELhL 96-VON 


WON LIWNad Gi dWvS AONa 


A7 
1997-98 Disposal Season 


sl oreo Jej0) uoseas 


Sz7e60e  OSdr 12101 Pafad 
StO-01-16 gaguscé 65% 008 68 tL Lez Ob by O LSl6€y OvELOZ O 6b OO Ory SEZL BIOL} SOIN 3ONVYLN3 WNINVW 4D VNINVW Adda SAIVS vERZORBEL = #ZOSL 
S10-01-16 g@ous6 65+ 009 68ry cL Lez Ob ty 0 LSl6Ey BvEL9Z O ZZ OP 622 S 8101268 SQIN 3SONVYLN3 YNINVW S'S VNIMVW ANY3d SIIVS veez70886! = EZ0S 
S10-01-16 g@qusé sz ler ose 60S’ el pz OF by 0 BSL6Eb Bpelez O 2% Ssst ySEb Spbb LbOLLG6 SGIN SONVYLNE YNINVW 4D VNINVW Audas SAIWS veazoosst 22051 
St0-01-16 gau ob gses 00L tis» a ZEz OF ty O LGL6E¥ BveLee O 2 Obp ey OfEZ ZLIOLL66+ SQIN 3SONVYLNS VNINWW 49 VNINVW AYY3AS SAIVS 9£8z00861 20S) 
StO-O1-16 gau oF zo 008 bos'y cL Sez Ob by O LSL6Eb LvELOt O 22 OvSL zoel SSOL O+O12681 SQIN 3JONVYLNA VNINWW 4 '9 VNINVW AYY34 SAIVS peez09est 02051 
SLO--Ob-16 §a0u OF SSeS 0O0L 10S’ cL sez or tb O LGL6Ev LHELBZ O 22 OPE 6L Sphic StOLL66t SQIN SONVYLNA YNINVW 49D VNIMVW AYY3d SAIVS PE8Z0866l = B LOSE 
Saple 008 le10, palag 
StO-01-6 gay 8 est 002 els tL Zez ob tp O LSl6eb Opelezr O ZL 60r0868! SOIN AVG ONVISI ANid 19 LHOWA LLSSSOODANNSHS 288000861 47951 
StO-O1-16 gau 2 GLobb ost SOS'b el bec or ty 0 OSl6Eb Leelee OL 80r08661 SIN AVG ONVISI SNid 10 LHOVA LLSSSODSNNSHS zes0006s8!  9z9St 
St0-01-16 gdqu 2 Slob Ost bose ZL Sez Ob tb O LGl6€p Leetez O Lb 80r08661 SOIN AVG ONVISI SNid 190 LHOWA LLASSODANN3HS 288000661 SZ9SI 
StO-0b-16 gdqu 8 est 002 else aL cez Ob tb O LGl6Eb Brelee OL LO¢08661 SOIN AVG ONVISI ANIld 19 LHOVA LLASSODANNSHS 2880006681 = 79S 
SLO-O1-16 gau 2 Sel oor Lbpok = ZL 469 Eb bb 0 OSl6Eb OrEZEZ OL 80P08661 SOIN AVE ONVISIANId 1D LHOVA LLASSODSNN3HS 2880006681  ez0St 
St0-01-16 gdqu 6 g6zz ooe esp (aa zez Ob bb O LGl6eb BrvElez OL SOvO866! SQIN AVA ONVISI SNid 19 LHOWA LLASSOODANN3HS 2880006681  2z9St 
S10-01-16 dau @ ech 002 S¢7sb @ €zo bb O LSl6Ev BrELEZ OL rOrOR66! SOIN AVG ONVISI BNid 10 LHOWA LLASSODSNNSHS 2880006681 1298S! 
SI9-01-16 gqu 2 sol Oot i el bZz Or bby O OSl6€b LreloZ O FLO 66h SQIN AVG GNVISI BNid 1D LHOVA LLASSODANNSHS 28800068} 6 10S) 
600-01-16 Ody 6 SL°Lez ose tos’ el sez or tb O LSL6Eb LvELOe OO D PLOllest SQ1N AVG GNVISI ANId 10 LHOWA LLSSSODSNN3HS 288000661 E105} 
8600-01-16 Ody 6 S62 OOe Sosy cL 22 Ob by O OSL6Eb Lbelez O B €101 2661 SOIN AVG GNVISI ANId 19 LHOWA LISSSODANNSHS 288000661 +h0SI 
600-01-16 Ody @ Seer ose 10S’ y cL Sez ob bp O LSl6Eb Lvelee O 9 €1OlL66t SQN AVG GNVISI SNId 19 LHOWA LLASSODSNN3HS 268000661  600S 
600-01-16 Ody 8 est 002 SOS'p cL bz ob lb O OSl6Eb LpeI9e OO C1066 SGIN AVG ONVISI ANId 10 LHOVA LLSSSOODSNN3HS 288000661  O10SI 
8600-01-16 Ody SL es 002 40s’ (qi Sez ob ty O LGl6eh LeelezZ 0 8 ZLO1 L664 SIN AVG ONVISI ANId 10 LHOVA LLASSODANN3HS 28800066!  800S! 
600-01-16 Ody 6 80E OOF esp (qi zez OL ty O LG6Eb eBpelsze 0 9 bLOZ661 SOIN AVG ONVISI ANId 10 LHOWA LLSSSODSNN3HS 288000861 —L00SI 
600-01-16 Ody 6 80£ OOP ers aL zez ob bb 0 LGl6€e eBperse 0 9 +40) 2681 SGN AVE GNVISI ANId 19 LHOVA LLSSSODSNN3HS 28800066 9800S 
600-01-16 Ody 6 S0E 00r esp el ZEZ OF by O LSl6€h Bperse O 9 bhOb 2681 SQIN AV@ ONVISI ANId 19 LHOVA LLASSODSNN3HS 28800066  F00S 
600-01-16 Odd 6 80E 00b 40S’ (qi Sez ob tb O LSL6Eb Lbelsz O 8 0101266) SQIN AVG OGNVISI SNId 1D LHOWA LLASSOOANNSHS 728800066!  SOOSI 
GhO-O1-16 aay 8 S622 ooe vy e #2 Ob bb 0 0 tt) oz O1OLZ68 SOIN AVG ONVISI ANId 10 LHOVA LLSSSODSNN3HS 28800086+ 0005S! 
St0-01-16 aay 8 S622 OOE Sr cL ez or ly 0 0 0 4 01602661 SGN AVG ONVISI SNid 1D LHOVA LLSSSOOSNN3HS 288000681 —_—*L00S1 
a#dsuj jewuidsuy yerq (evWi0A (evo)i0\ UWu0]  Bequo7 uiWiey Seq UesO7 uel07 aeq = aus WEN Hala eauad wUWWad 


ye7 


Appendix B 
REMOTS® Results 


Bla 
NL-91 and D/S Mound Complex 1992 


) ) 4 bhb © OS'ZE Spool er 0 z yoEe 4 v< nebeas oql = pez Ss 26608 e asgoe 46-1N 
0 0 +20 890 SObt 2€01 1s0 t ZO 0 ¥< e6e1S oqf = =90e ~=—s e808 2 so0e 16-1N 
) 0 196 720 786 +6 0 0 ZO be p< |e6eis oqf = s0z~—Ss 26808 q  sooe 16-1N 
0 ) ee6 €90 ZOl 496 0 0 Zoho p< la6eis ogi = £02 ~—sz6808 e& sooe +6-1N 
) 0 0 ) 0 ) 0 0 x x x oq = kez 26808 2 u00e 16-1N 
0 0 sey 10 8 szs PP ) 0 £02 O ¥< i aBeig NO | a6e1S ogi = oe@~Ss 26808 q u00e 46-1N 
0 ) 892 LeO z62 Sh 0 ) £92 O v< 1eBeis oq = Azz 26808 e@ Ugo 16-1N 
) 0 zo 860% SSL 90'S 0 0 poe +f v< i aBeisg NO | aBe1S oqi = =gS0} = 26608 9 auaQgoe 16-1N 
ft) ft) ser 90 99'p 90¢ 0 0 £92 O € x oq sso = z6608 q auagoe 16-1N 
) ) 661 60 9rz rao ) ) yore 0 ¥ 1a6eis oql 250} += z6608 8 auagoe 16-1N 
0 0 dpe 940 S98 608 0 0 poe + p< 1eBe\s oq) = Zt =S ss Z6808 9 900€ 16-1N 
0 ) 176 0 6€%@b)0 286 6s'8 0 0 yore 4 v< 1 e6e\s og =k Ss 6808 Q 2008 16-1N 
) ) 0 0 ) 0 0 ) enz 4 v< x og = bE Ss 26808 e@ 900 16-1N 
0 0 969 leo 22 €2'9 0 0 poe 4 v< jeBeis oq} = BEL = Z808 2 m00z 16-1N 
0 0 bol e60 Lz 219 0 0 roe 4 r< | e6e1s oa! ze} =. Z6808 q ™00z +6-1N 
() ) 299 sso 69 seo () 0 p< 1 p< 1eBeis og = gEt_~=—s 2808 e Mm00z 16-1N 
) ) ) 0 0 0 0 0 x x x x og = SES 26808 2 MSQ0Z 16-1N 
) ) 2Z€0l 8072 +tPhtL £6 ) 0 pOE F p< yebeis ogi = @pE = 26808 q ™so0z }6-1N 
0 ) 99h g0€ 29 Zhe ) ) poe Zz v< 1e6e1S og’ = @pE—Ss 26808 & msQ0Z 16-1N 
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veayy Wwnuwixey WaWiUIW  ealy 


ealy jay 


day  uoneis manent ssauyolul Gdy juaseddy ‘day uonelsg ypunow 


ealy jay 
S|UaWWOD) OG Mo7 faoUeGN)sig edeUNS UND eueyeW} SO 


Blb 
NL-91 and D/S Mound Complex 1995 


eqn ued o}=10<WO WS] 


jew eqn)! vod 0} = 10 < WO ‘WS 
SPIOA pur S4OeI9 ' pNs UO OBe\WOSse jeune) OsUDP ‘Ud oO} = 10 < WO ‘WS 


SINSOOIS 
OIN30018 
OIN30018 


xroao 


S)oe pe 20a ‘sony poiychue "Yidop je ploa by Woquiy 
102 Www Oqn) podiydwe ! vod 0} = 10 < WG ‘WS 
jew eqn) podiydwe ‘ws ! ved oj = 10 < WO 


SINSOOI8 
OINSDOI8 
SIN39018 


jew oqn) podiydwe esuep "ued=10<WO WS 
taouing 6) ‘soqn) podiydwe BurAesep ‘ws ‘ued = 10 < Wa 
ys jossnw 4 ‘seqn) jydwe mei ‘uiy) “A Gd ! ued = 10 < WO peonpel ‘A 


SINS9OI8 
SIN39018 
SIN39018 


1 1S 16/52/80 
I LS 16/52/80 
NO Ir 1Si6/S2/80 


jeu} pu} = GNI 


YIdep 0} SmouNg ‘seqn) podiydue ueiquy 
Gey WEYs 'PIOA g19}04 Au!) Yew Eqn) podydwe ‘jueiquy| 
Be; Joys oWos ‘mauing deop ‘jew oqn) podiydwe ‘woiquy 


OINS9018 
SINSD0I8 
SINS0018 


iposoped ou) jew Ogn) podxdwe JojU00 u) MONG Bb)’ ued o)=10< WO WS 
yidop je sdwn) Ago ewos ‘spud.0pod ‘ou; 'oqn) podiydwe 'W/s 
jew oqn) podiydwe ‘ vod 0) = 40 < WO 'W/S 


SINS90I8 
SINSD0I8 
OIN300I8 


au 
2 S\00 0/00 
o® 


o}ooojo00 


3 
° 


i NO WW 1836/92/80 


jew on) "vod oj = 30 < WO! 
Wwe soA0 WO} 
yus ‘vod 0) = 40 < WO 


SIN300I8 
SIN39018 
OINS0018 


DROHDHR JOR OTOBIOR aD 


PNW JOAO Gey 1/043 pur So;qqod ‘pojeUdopur) 
*01JNG Ose) ‘PNW 4JOAO pues pue sojnURIB ‘WS 
SpIOA OWOS 'W/S ‘poyes Ayoog 


WOISAHd 
SINZ0018 
WOISAHd 


fa) 
ed 


yew oqn] weiquy| 
170] UO PioA Auy Suoiquiy) 
Jeows Odi OWOS ‘jUoIque ‘Ayo|ed Qdy 


SIN30018 
SINADOI8 
SINS9OI8 


50qn) UO S| 15 ‘Seqn) 1ydwe ~sxoes “SploA ws ‘Uod=10<WO WS 
WIOM 'PLOA 10 49819 6) ‘SploA Ws ‘soqn) Iydwe ! ued 0} = Jo < WO 'W/S, 
50qn) podnydwe ‘spion ‘Ws pue smouNg UeBde|sMD | Vad oO} = 10 < WO 


SINSSOIS 
SIN39018 
SINA90I8 


oOR@alnn 


eclocdjco clo 0 of 8S%a00|00 
ond 
oojoooj000o]/000 


© 
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nu 
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sMoung Ws Aue 'seqn) pue sproupAy ‘jew eqn) dn-peddu |woquy 
yew eqn) dn-peddu ‘jwoiquy, 


SINS9018 
SIN35018 
DINS9OI8 


oO) ~ 
2 dlocd|o0d0 00/82 Boooo0o WSS JAS 
oO i=] -|NO oO i=) 


o 
oO 


ooo 


yew oqn) vedo) =10< Wo WS 
yoe9 Bj 8A0 Ns UO 6)|Se|9 poonpel ‘'uad 0} = 10 < WO 
SPIOA pue sy9e9 ‘jew qn) dn-poddu ‘ued 0} = Jo < WO 'W/S 


OINSDOI8 
SINJZ0018 
OIN3D018 


© 
Blood 
re) 
| 
0} 
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z 
x 
o 


° 


° 


cel 
re9 
veol 


Sigal 
eb pel 
22est 


-_o 
CIO OCI CTO OC IOC OC MOCK) 
oo 


PrOA Buipeo} obie) Moving soqn) ydwe buiKeoop woquy 
duaquy 
Jew eqn) peginisip ‘4 wequy 


OINJ80I8 
OIN390I8 
SIN39018 


ooolho 
oooro 


c0olso8lo00 


tt) 
eset 
0 


e20|507 "ew Oqn| "Usd Oo] = 10 < WO 
pNS UO spjopAy pue soqn} ' Uad Oo} = 10 < WO ‘WS 
spodiydwe ‘snz0jdojoeyo | ued 0) = Jo < WO 'WWS 


SINS9OIS 
OIN35D0I8 
OINZ9018 


a) am) Cam) on) Co ol) oto) Co)! 
© © oo 0 alo ® alo. 000 0 00.0 0f00 00 000 00/0 00/0 0 clo 0 doo 
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ec 0/0 00/08 cloc ojo 0 Oloo d/o 0 Olo Oo ojoo oloc ola ao oloo ojo00 


Rralolalnun allan 


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eo8uNsS iSO 


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uveW ‘UN «by Ube KEW 
seeuy2141 Gdy Waeddy 


UW 


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useW ebuey 


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8190/9 POW 


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-nalw—--l—-nw-lo-ajn--l-o- 


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ITNO TLS i6/S2/80 


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ME&ZO0'¥0 220 
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M8ev'b0 220 
Mbvbr'v0 220 
Mier 70 220 
Msev'¥0 220 
MOEP 0 220 
Meer v0 220 


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26/90/60 
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26/01/60 
26/90/60 


26/90/60 
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eZ 6172 

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wnuwixeyy wnwiuly) eBay 
ssauyo|yt jeayew pabpag 


wnwixey wnwiuiyy 
uo}eauad e1BWeD 


Jajaweig junoD | epo;w 
sysejopny 


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Jeuojssa2ons 


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JGNLISNOT 


26/90/60 
26/90/60 


26/90/60 


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SGNLILV1 LSATIVNV SWIL 


26/90/60 
26/90/60 
26/90/60 
26/90/60 
26/90/60 


scnonnovla nolan olan ojnnosvnodvisnndvscon ojsnHosnH cCcVvAgTH o0oVpcoH oO 


‘day uones 


EPIOA ‘yew aqny dn-paddu ‘seaws Jedim ‘ywy/s ‘ued<wp 

WG 0} Sajyejnoied pazipiny)‘4p/M payyul MONG By'A !yWy/S ‘uad<wp 

W/S ‘ued<wp 

CYIGEP Je SPIOA DUIP|S} JIja1.jBLW Sqn) eosijaduiy GN-peddu .WW/S.ued<wp 

Jadim Aq paseaws Gd ‘yidap je spioa Hulpeay ‘y;/s ‘ued<wp 

uydap ye spion Buipaa; ‘saqny pns!syoejpe sadim Yq !;W/S!ued<wp 

SPIOA Buipaa} !yw/S ‘ued<wp ‘uadiano 

goueyjow ‘Huyeaws Jadim "W/S ‘uad<wip 

uede-|jnd 10 spion Buipasy jo!}a1 6) Auan‘pues 4q uly) 19A0 JSejoPNW Jadim:W/S!uad<wp 
ujdap ye spion Buipeay 6)!ywys ‘ued<wp !uediaao 

uadsano ‘mowing !syeeds JedIM ‘Wy/S ‘uad<wp 

uidep wag L!oL ye Spion Buipag; 6) yew aqn) podiydwiy dn-peddu ‘aus ‘uad<wp 
Jeuolsoia 'Zu\dep ye spion Buipaa) yew aqny dn-peddu 'w/s ‘uad<wp 

JEUOISOID !{hHD 'ZPIOA ‘ws‘u\dep Wd G-p SWIOM !W/S uly) ‘uad<wp 
éumop-Beip‘yew aqn) eostjadwiy dn-paddu ‘qqy uly) ‘W/s ‘ued<wp 

Pion Buipaay jul ‘pNs uo syool~g ‘Buiyeays Jedim ‘yy/S ‘uad<wip 

Ell OY ‘wW90| ~PloA Buipaa) !;6uiyeasys sadim ‘uad<wp 

Moding pau !S ul Be] jays ‘(Aejo 4q) W/S ‘ued<wp 

yewaqn eosijadwy dn-paddu ‘Be| jays 'syoos ';uad<qdy ‘ued<wp 

uidap ye gaunyoesy 10 SpioA Bulpaay ‘yew aqny dn-paddi ‘6e| jjaus ‘;w/S ‘ued<wp 
I] O4J0y ‘yew eqn) dn-paddu ‘qqy Ayoyed pue uly) ‘ued<wp 

ploa Buipeay ‘seqn) Ns ‘yNs UO Sugapy/janeibDpjoNg ‘ued<qyy ‘Ued<wp ‘ued mojjeUs 
SpIOA Bulpag) !syew aqn) podiydwey oAjod ‘6x jays ‘;W/S ‘ued<wp 

aqn) eosijadwiy dn-peddu ‘;6uuaews sedim ‘uad<wp 

ujdap ye spion Buipaay EyewW eqnidn-peddu ‘uad<wp 

Gd Juies/Ayojyed ‘yew aqny dn-paddu ‘!ujdap ye swuo0m zZ:W/S‘!uad<wp 

JEuo!Isole ‘NODS Ns !{seqny ‘Ajod Jo podiydwe ‘qq pauniq:uiyy ‘W/S ‘ued<wp 


WOISAHd 
SINADOIE 
OINSDOId 
OINSDOId 

LS0NI 
WOISAHd 

LAGNI 


SINSDOI8 
LAGNI 
LAGNI 
LAQNI 

AWOISAHd 

WOISAHd 

WOISAHd 

OINSDOI8 

WOISAHd 

WOISAHd 

AWOISAHd 
LAGNI 

WOISAHd 

WOISAHd 

WOISAHd 

WOISAHd 

AWOISAHd 

WOISAHd 

WOISAHd 

AWOISAHd 


WG WOM Uy) eWegn) podiydwe dn-paddueaws 1edim'W/S ‘ued<wip 
JEW aqn) ‘ZjoRjIWe JadIM ‘yy/S ‘uad<wp 
yew aqn) podiydwe dn-paddu !yw/s ‘uad<wp 


éplon Buipaay ew aqny eosijadwiy dn-peddu 'w/s 'uad<wp 
yew aqny dn paddi !‘qdy Ayayed'sjoeyiue sadim ‘W/s ‘ued<wp 
yew aqn) Uns ‘wo 0|-Gz"Z WOM ‘Wy/S ‘ued<wp 


WOISAHd 
OINADOIE 
OINADOIE 
WOISAHd 
WOISAHd 
OINSDOI8 


yew) dn-paddi jisodap Be] nods oeje Jadim ‘WS ‘uad<uip 
SPIOA Hulpad} ‘joeje ysejd Jadim !yy/S ‘ued<wp 


EPIOA Buipaa; 6 ‘6e) 1noos ‘(Aejo 4q)W/S ‘ued<wp 


SPIOA Buipady ‘syewaqn, eosiedwiy ‘be] (joys :W/S .ued<wp 
SPIOA Bulpag) ‘yew eqn) dn-paddu ‘w/s ‘ued<wp 

ujdap je pion Buipaa; 6} ‘syew eqn) dn-paddu ‘uad<wp 
punojBbpiey ‘uadiepun 

PIOA Buipaas yew eqn) podiudwy joes pe sedim ‘w/S ‘ued<wp 
syoejipe adim ‘W/S ‘uad<wp 

SPIOA Buipady ‘jays Ws !seqny yns ‘ued<wp 


sjusuiw09 


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WOISAHd 
AWOISAHd 
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13QNI 
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aoueqinysig| junoD 

eoeyNs} oueyjoW 


[ pocpccdeoseeseescoeseceedeadecdeesedecedoos 


WNWIxeyW) WNWIUIW eely 
ssouyo|4yl Ody Juaeddy 


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‘day uoners 


Bld 
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WG M3N 3O SS3NHOIHL 

WO M3N 40 SSANHOIHL XVW 
Wd MAN 4O SSSNHOIHL XV 
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uonms — /PUNOW. 


B2 
USCGA Mound 1995 


Caxodhy “jew eqn) deaws Jadim ued O}=J0<WO WS 
SISEP Jadim 'LaxodAy ‘ew eqn) dn-paddu ‘udap ‘vad 0) = 10 < Wa 
“ung ‘Axo daap uy) :seqn) podjydwe ‘ued 0) = 40 < WO ‘ws 


ON 


S3A 


OIN39018 


SINSSOI8 ~GNI 
SINADOI8 GNI 


ooo 


IWHO "HOdes 30) INTHd "WO 219 pue Aep Aypjed ‘pas "vad 0) = 10 < WO 
yew eqn) podjydwe ‘ued 0) = 40 < WO ‘WS 
seqn poddue iued 0) = 10 < WO ‘WS 


yew eam dn- -paddy ! ‘ued > WO ‘WS, 
Jew qn) BujAeoap ‘2 jua|qwe ye] JMO} ‘WS 
peddp Sued 0) 50 < Wa ‘WwS 
yee) WO 2 ‘ued 0) = 10 < WO ‘WS 
“PAS UO sqeso yuUaY :Le|xodAy ‘jew eqn) dn-paddy !'uad 0} = Jo < Wa 
judwe ‘ved uj uad <Qdy /uad oO} 

yew eqn) podiydwe ‘ued 0) = 40 < WO ‘WS 

UMop-Besp ‘Jew eqn) podjydwe :'uad 0} = 40 < WO ‘WS 
ap -uad 0) =10<WO WS 
SP{OA Auj) 'saqn) ‘ya) UO eave “ws U) AJUO Qqy !Uad 0) = 10 < WO ‘WS 
SP{OA Ou ‘ung daap d)/94 ‘Be; ays ‘ew eqn) ‘'Uad 0} = J0 < WO ‘WS 


=10<Wo WS 


PIOA “WS ‘Ssesbjaa :Be) JOYS Jew eqn) 


ON 
ON 
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ON 
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ON 
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SIN39OI8 
OIN39O18 
OIN39O18 
OINSSOI8 
OIN35018 
QIN39OI8 
OINSSOI8 
OIN39018 
SIN3DO18 
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0y=10< WO WS 
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Be| (1ays ‘yew eqn) dn-paddu ‘ydap 0) Wa ‘WS 

Jew eqn) podiudwe dn-paddy ‘ade} enig wep jo eseq 1 WG ‘WS 
Be) ays yew eqn) payng - ued o) 
6e) jays ‘'uad 0) = 30 < WO‘WS 

‘uad 0) = 40 < WO ‘WS 
PAW JO WON0G OF WG ‘ZsweAe Woe WS 
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SP{OA OU :saqny podjydwe ‘usd 0} = 410 < WO ‘WS 
dn-peddp vad 0) = 40 < WO WS 
Ae} 1ays ‘sMaung ‘jew eqn) dn-paddy !'uad 0) = 40 < Wa‘Wws 

2e)xodAy ‘yew eqn) podjydwe dn-padd 

Be jays owos jew aqm podjydwe dn-peddt 


=10<Wao WS 


yew aqn) yede-poddt 
SPIOA OU 1G Uidap 0) MONG ‘Wake| eng 


“Pas pa|yow “jew eqn) 


ad 0) = JO < WO ‘WS 
ad 0) =10< Wa WS 

LSIUBAB WCW [2J9A9S “'Uad 0) = JO < WO ‘WS 
Ge] nays BwWOS ‘ew eqn) dn-paddu :zstaAe] WO Z /Uad 0) = 10 < Wa ‘Wws 


ON 
S3A 
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ON 


ON 


ON 


ON 
ON 


ON 
ON 
ON 
ON 
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SINSSOI8 
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SIN39018 
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OIN39018 
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9IN3S018 
SIN35018 
OINS9O18 
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OG esueqnisig 


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4186/97/80 
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1S $6/S7/80 
Ls se/sze0 
WLS S8/Sz/80 


iis seezeo 
4s seezreo 
I isseezeo 
W1sse/sz7eo 
ILS 56/57/80 


1S S6/S2Z/80 
I Ls s6/sz/eo 


i LSS6/Sz/e0 
I 1856/52/80 


NO Il 1SS6/Sz/80 


1S S6/Sz/80 
I Lsse/sze0 
ILS S8/S7/80 
WW Ls se/sz7e0 
WLS S6/Sz7/80 


<OOC OO CMO; CMO COO cMOOjcOoOicmO/coOo]/cemVoicooicnoicoo 


“xeW UIN COlY “ON UeOW 


Jojewelqsejqqng eueyeW —_—-SSOUXD1NL Ady Juoleddy 


eay 


SSeUNdIYL [euEleW pebpag 


uojejeueg eee) 


‘ON epoW 


SISEID PNW JOfeW (14d) ezjS UjeEIN jeUO|sseDoNS 


e6eIS 


eed 


dey uoneis 


B3a 
NL-94 Mound 1995 


S)EUIULA)8pu) = GNI 


OINS9OIS $0 6 j i TE eb 0 I 1S Se/S2/80 


yee Jadim ‘saqn) podiydwe Bukesap ‘ssake] Wa plo :uad 0) = 40 < Wa 


Be} |jays ewWos ‘}ewW eqn) podiydwe ‘vad 0) = Jo < Wa 9INa9012 1 i i NO WT 1S Se/szg0 

[JEWS SPIOA ‘yew aqn) podjydwe ‘uad 0} = Jo < wa OSINS9OI8 jl i! i i lI NO_I 1S s6/sz/80 

eens paqinjsip ‘Aynjed Gdy !'uad 0) = JO < WG OINS9OI8 i i i i il il 1S $6/SZ/80 

yoeje seaws Jedim ‘deo pues ou !yew aqn) !'uad 0} = 0 < WO OINSD01I8 i i it i i INO I 1S S6/Sz/e0 
jew eqn) podjydwe esuep ‘ued = Jo <~wa ‘Wa S! pnw ‘WIS SINa901I8 ; j i i INO ILS $6/Sz/80 
yew eqn) podiydwe esuap ‘ued 0) = Jo < Wa ‘W/S' SINS9OI8 i H i lil NO Il 1S S6/SZ/80 

6e| ||oys eWOSs ‘'Uad 0) = JO < WG OINa9018 ; i q 4 INO WLS Se/Sz/80 

yew aqn) podiydwe esuap ‘ued 0} = JO < WG ‘WISI 9INa901a : p ft P INO LS se/sz/e0 

UjGap je PIOA BH} ‘Gd uly) ‘A !'Uad 0} = JO < WO) SINSDOIg : i 5 i i i } i il NO li 1S S6/Sz7/80 

yew eqn) podiydwe dn-paddu ‘ujdap ‘uad 0) = 10 < Wa 9SINa90Ia i P ; f NO IT LS S6/Sz/80 

spion Buipaay Auew ‘Be; jays awos ‘yew aqn) podiydwe !'uad 0} = JO < waj OINSDOI8 i i UNO _I_1S S6/sz/80 


Be} ays ewos ‘yew eqn) podiydwe 'uad 0} = 10 < Wa 
Ge; jays ‘Aoyjed GQdy !'uad 0} = JO< Wa 

yew eqn) podiydwe ‘Ayojed pgy ‘'uad 0) = JO < WG 
IOP NS JO YONW UO WI Q ‘UILN A Gd¥ ‘'Uad 0} = JO < WO 
2°0'G Mo} ‘saqn) podjydwe BuAedep ‘!pajjow !'uad 0) = Jo < Wa 

pnw peonped + Aejo AevB pajow ‘yew eqn) podiydwe ‘ued 0} = Jo< Wa 
yidep uojesjeued 0) = Jo < WO 
(dit) udap ye spioa “By ‘yew eqn) podiydwe ‘ued 0) = Jo < Wa 
yew eqn) podiydwe ‘yjdap ‘uad 0) = so < Wa 
uidap uonesjauad 0} = 10 < Wd ‘WIS 


OINS9O18 bre bE i A i i 1S $6/Sz/80 
WOISAHd SSP OL i F i i TNO TLS se/sz/eo 
OINS9OI8 i bab be i q i i : f : lI NO_I_LS $6/Sz/a0 

SHA SINS9OI8 i i i i 1S $6/Sz/80 
ON ‘WOISAHd . WITNO I 4S s6/Sz/80 
ON __9INASOI8 i j i ; i : i i i i i WI NO“ ILS $6/97/80 
SINSSO1a i i ; j INO W 1S Se/9z/80 
SINSDO18 i ‘ ‘ 3 i TNO ILS s6/Sze0 
OINS9018 i i i | NO Il 1S s6/Sz/80 
OINS9SOI i j ; i ‘ I NO HN 1S S6/92/80 


yew eqn) podiydwe dn-paddiy OSINS90I8 i i i ILS $6/Sz/80 


(11 “ABp-18M ‘WHOM “By ‘PIA DISSE}9) WOdas JO) INIYd ‘Jew eqn) esuap | SI SINS9O0I8 i i . R i i NO ILS S6/Sz/80 
yeW eqn) podiydwe BulAedap ‘juaiqwe s! pnw ‘yw/s SINSSOIS R i i il i i L$ $6/92/80 
yew eqn) podjydwe Bukeoap ‘usd 0} = Jo < WG ‘W/S| OINa901Ia ; § ; INO I! LS S6/9z/80 
BurAeoap jew aqny podiydwe ‘yuaiqwe s} pnw ‘ys SINZ901I8 i ; i ‘ INO WLS S6/Sz/80 
saqny podjydwe Bulkesap ‘juaiquwe si pnw ‘WiS} SINSD0I8 i ‘ i i i i i 1S se/Sz/80 
Bulyos Jood ‘jew eqn) BulAevap ‘Ws ‘Zjuaiquiy’ SIN3Z901I8 fi i H i il NO tl LS $6/S7/80 
yew JAPUN dUge} JayJays ‘;Wy/S ‘jUa|quiy OINSDOI8 i i i k ILS $6/Sz/80 
SMOUNG 'W/S Lualquy| SINaD019 ; i i ‘ ‘ i i i NOH 4S $6/Sz7/80 
EME-|[N JO OBIE Qdy ‘yew eqn) HusAeo~ap ‘zyuaIquiy SINSDOI8 ; i P ; ll 1$ 96/92/80 
yew eqn) podiydwe dn-paddu !'uad 0) = 10 < Wa ‘W/S| OINSDOI8 i " INO ILS s6/Sz80 
yew eqn) podjydwe ‘ujdap ‘uad 0) = Jo < Wa ‘W/S' SIN3Z9018 ; j ; j ; TNO HW LS Se/Sz/e0 
yew eqn) Moj|aq dUgeRy Jayjays ‘yew eqn) podiydwe !;w/S 9SINS9019 i ILS $6/SZ/80 
WG JO eSeq) YOdes JO} INIYd ‘19 Jedim ‘pueq yep WO}Og 0} “yNs Wd SINS9OIa Il NO Wl 1S $6/S2/80 
JEW AQ) UI dy JEW aqn) Mojag JUgey Jayjays ‘yew aqn) podiydwe ‘ZG! OINS9018 IAs se/sz/e0 
yew eqn) podiydwe esuap ‘mojjeys spion Buipaay -Cwuaiquiyy SINS9OI8 | 1S $6/Sz/80 
ays ew eqn) podjydwe dn-paddu ‘juaiquwe s} pnw ';wy/S} OINS9OI98 I) LS $6/92/80 
(\uaique) yodai Jo) INIYd ‘WeEW aqn) podiydwe esuap ‘juaique si pnw ‘yw/s} OINa9018 INO WW LS S6/Sz/80 
yew eqn) podiydwe esuap ‘juaique s} pnw ‘yWw/s| SINa9018 NO I! 1S S6/Sz/80 
eme-|iNd ‘saqn) podiydwe BulAesap ‘juaiquiy| OINS9OI8 NO Il 1S S6/S7/80 
yew aqn) podiydwe Burkeoap ‘w/sf SINS9O1I8 


LS s6/Sz/e0 
loeyme eq Aew pion 6) ‘spuasopod ‘oul spodiydwe ‘juaiquiy} OSINS9018 ILS S$6/SZ/80 


Bel ays ‘Wa Ss! pnw ‘wish OINS9DOIS i i 13GNI 6/92/80 

Be) snoos esepns ‘Wa S| pnw ‘W/S) WOISAHd i INO {LS $6/SZ/80 
yew aqn) BuAeoap ‘wa s} pnw ‘W/Sf SINS9OI8 ; p i j i i i 1S $6/Sz/80 
WG SI pnw ‘WS OINS9O18 : jl i INO I LS 96/92/80 


| OG eoueqimsia ueow XeW ‘UN eely UeOW ‘Xe ‘UlW ely UeOW Obuey “XeW ‘UW ‘eI ‘ON epowsolew ‘xeW "UN bes 
sjuewwo5 mO7 eDENS {ISO  sseUX Iu, Gd ueeddy  sseuNdiys 1ee;eW pebpog uopesjeued esowes) s}sei9 PNW (ud) ezis ujeig _jeuojsse2ong_—eyeqg_ dew _uoneis} 


B3b 
NL-94 Mound 1997 


g8'bee 
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Slese 


bOGZL 
8S'802 
06821 


NO 1 1S 
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WNO 1s 


OL Mas 
WoL tas 


MZ98'60 220 
M998 'b0 220 
MS98'b0 220 
M868'F0 720 
Mv68'r0 220 
MZ88'¢0 220 
M1S8'b0 220 
MtS8'b0 220 
Mere’ b0 220 
MeZ8'¢0 220 
M1880 220 
M898'b0 220 
M168'b0 220 
Mp88'b0 220 
M88'b0 220 
Mt28'b0 220 
MOE8'bO 220 
M9E8'b0 220 
MEZ8'b0 220 
MZ98'60 220 
MeZ8'b0 220 
M608'F0 220 
Me08'F0 220 
M862 'b0 220 
MS¥6'F0 220 
MZS6'¥0 220 
M966'b0 220 


wnw)xeW Whi easy 
SSOUHIIY1 JeNe,eW PeBpeig 


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uonesjeued eseweD 


Jayaweiq yunog 
s}sejopnw 


NOMOYANON YOM FT OYNTINANYN MN TF OMTONAMNMANANAYAMN AN TINA TOM MMM OMT tO TOMO AN 


wunw)xeyW Wnwiuiyy 
(ud) exis ujesy 


jeuojssesons 


MOS6'h0 220 
MLE€6'b0 220 
M926'b0 220 
MS1+6'b0 220 
ME1L6'b0 220 
M806 'b0 220 
MZZ8'b0 220 
M128'b0 220 
MS+8'b0 220 


MS¥6 0 220 
M9S6'h0 220 


M616'b0 220 
MO18'b0 220 
M808'F0 220 
M608'b0 220 
M26Z'b0 220 
MZBZ'b0 220 
M082 'b0 220 
MSZZ'b0 220 


HGNLISNO1 


869b7 91 Ib 

92°91 tb 
L6pbo 91 bP 
86E77'91 Ib 
b2Z2°91 bb 
S6612'91 bb 
L6EZT9L Le 
£627 91 bb 
8827 Oh LP 
S8917 91 Ib 
88612 91 Lp 
99222 91 bb 
260929} bP 
2609291 be 
6E97 91 Lb 
SLLOZ OL bb 
SO692'91 Lb 
S1892'91 bb 
cLL97 OL bb 
S8292 91 by 
beleOb bb 
606191 bP 
6881 9b be 
8658191 Lb 
C6E0E'OL bb 
G60E'91 bh 
GE0E'S! Ib 
80E2 91 bP 
886291 be 
80862 91 bb 

60291 tb 
St902'91 bb 
8190291 bb 
690291 bP 
GS8202'91 bb 
26017 91 be 


S6612 91 Lb 
8696291 bb 


Qbe' Ol bP 
8828291 Lp 
S8P87 Ol bP 

ZEB Ol IP 
€88re ol tp 
€60r7 91 th 
€80b7 91 bb 
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SqnLiLVv1 


ASAIVWNV SWIL 


UOnEIS 


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Aejo paseaus jo sjay0d ‘yjdap woe je SpioA “ws ‘6e| jjays ‘;/S ‘uad<wp JSON 

Pion Buipaay ‘unoos pins ‘saqn) eosijadwiy ma} e ‘Be; jjays'seaws Jedim'yy/S ‘ued<wp AWOISAHd 
2} UO SPIOA 5] NS UO Saqn) edsijedwy :be| U) Sijaus 1S 4q: WOISAHd 

mong daap :6e| |jays WOISAHd 

WP Jq p/m Aejo |q jaajS ‘yew podiydwe ‘Be jays 6):esawes Aqsip'pns:uad<cwp AWOISAHd 
YeWPE_DuUTeaWS Jadim :pNs je eqn) :W/S :Ued<wp I30NI 

Aynyedguiu) Gdy 'Seqn) ws May‘pNs ye S}jays 24a)SAO 6] !Aejo yq-1q ‘uad<wp OINS9OI8 
WIS} 20} SpIoA Buipaay Ws ‘sruajdojaeyy ‘wp poveAe| 'W/S ‘ued<wp ISaQNI 

mong daap jew aqn) eosijadwy dn-paddu :Buuowie Be; jays ‘uad<wp AWOISAHd 

Wd6 POA Buipaaj/moung ‘uoysanb ui BuvowJe-pns uyjuo sjjays eAW ‘uad<wp AWOISAHd 
ujdap Wo/-p 34nj}deJ) JO pioA Bulaay 6) ‘spodiydwegsaqn) pns ‘Be |jays ‘uad<wp AWDOISAHd 
Ody Paseaws ‘sjdeype Jadim Joulw ‘Buvowse-Be| (jays ‘w/S :ued<wp WOISAHd 

SPIOA Bulpaay !saqn) eosiadwiy ‘sjoeje Jadim ‘pues ul Ge] jjays !w/S ‘uad<wp WWOISAHd 
EPiOA Guypaa) jo!as :Leueyjaw ‘gay Ayojed :6e| (ays !W/S ‘ued<wp AWOISAHd 

Pion Bujpaay :(S)joeyd)oJgQe) payow :Ayedg_uiy) Qdy:0e| |/ays:|9e)ye Jadjm:uad<wip L3AGNI 
Ujdap je dqgey DNOeYD !yewW aqn) dn-paddu ‘Be; jays ‘yw/S ‘ued<wp AWOISAHd 
uoisosa:yjdap je syqes Soeys:jew aqny dn-paddu:pues u! Bey jays: y/S:ued<wp SINS9OI8 
Kejd J8A0 pdi pues ui) :uidap Wo p-z piOA Bulpasy :be| |jays -uad<wp WOISAHd 

21ge) DOeY :6e| ays: w/S :uad<wp AWOISAHd 

WW9 6 PIOA ‘uns UO Saqn) podiydwe ‘Be |jays !w/S ‘uad<wp OINSDOIg 

Wd g SWJOM UI) :aUl) -j) UO MON :be] [jays «W/S .Uad<wp WWOISAHd 

WOp}-Z} SpIOA Bulpaay ‘6uvowwe-6e| jays pue sjjays ‘uad<cwp WOISAHd 

PIOA Buipagy “6y!;}ew aqn) dn-paddus ‘6e) jays ‘w/S ‘uad<wp AWOISAHd 

du JO Bueaws awos ‘sain}oeJ) /M JSEjopNwW aAlSayoo :UadJapuN ‘yy/g ‘Uad<Wip AVDISAHd 
ujdap wd g 0) umos spion Gulpaay'zspodiydwy'6e| |jays ‘w/S:uad<wp AWODISAHd 

SPIOA Builpaay Wsyew aqny dn-paddu ‘Be, jays ‘~papose aoeyns ‘w/s ‘uad<wp AWOISAHd 
umop-BeJp Jo/mosngouge; Ja)|ays/pioA Buipaay:moung:bey jays: w/S:ued<wp AWOISAHd 
spodiydwe ‘anf :6e) jays !zsyoeje sadim ‘uad<wp WOISAHd 

wa)sAs mong 6) :uad<wp 9INS901I9 

J}9 MONG ‘}wW| Uad Jeau Sainjoe4 Z Be] [jays:sieaws Jadim:yy/S -uad<wp WOISAHd 

PIA Buipaay !moung deap ‘;W/S uly) ‘}Se}9 pnw Jadim !uad<wp L3Q0NI 

Jeuo0)SOJa‘}!LW!| Uad JeaU SPIOA pue MONG daap ‘6e| ||ays ‘;W/S ‘uad<wp AWOISAHd 

2Plon Bulpaay :Aydjed Gy :be| [aus ysijays:Ouseaws Jadim :uad<wp WOISAHd 

21 Oj9y :2ploupAy pue saqn) ‘WS ‘uad<wp AWOISAHd 

“UNS UO Ja}Sqo) BuNoOA ‘ys UO (24}) aBe}S)pion adeyNsqns 6 ‘6e) jays ‘uad<wp JASON 


pion Buipaay ‘saqn) pins ws ‘Be; jjays :uad<wp AWOISAHd 
SPIOA Buipaay ajqissod !6e| jays ‘ued<wp I30NI 


quie) Gdy ‘uidap wog-z SpioA Bulpagy ‘Be; jays Jou ‘yw/S ‘uad<wp 43QNI 
INOIS INS :Saqn) edsijedwy dn paddi ‘sjaeyipe Jad y FWOISAHd 
Jeuolsoa ‘Buueaws Jadim ‘;w/S ‘ued<wp WOISAHd 
yjdap je Wom ‘nods yuns !saqn) (Z)podiydwe “anfg'aAjod ‘sGey \}ays ‘W/S ‘uad<wp WOISAHd 
HNS UO SajesaWojbuos ajpeuseqysyao! AWOISAHd 
yew aqn) podiydwe dn-paddis ‘Be; jays snjyAw ‘uad<wp AOISAHd 
yew aqn) spodiydwe dn-paddu ‘BuowJe-6e| |jaysgs|iays ‘wp pajjjow ‘yw/s ‘uadaup AWOISAHd 
Pas sqpyq Ayajed ‘6e| jJays ‘uadsapun ‘uad<wp WOISAHd 
eoueqinjsig) junod 
syuawiwi05 e2eyns| euewjew 


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B4 
Northern Region 1997 


MZ81'SO 220 
M261'SO 220 
M681 SO 220 


MZ26'S0 220 
ME+6'SO 240 
Mt26'S0 220 


MOv6'r0 220 
M9¥6 60 220 
MS¥6 ¥0 220 
M6+8'¥0 2L0 
M8S8'b0 220 
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MZSS'b0 240 
M2z89'b0 240 


20SE9 91 Lp 
2OE9 OI Lb 
88Sc9'9} bP 


ZIEBL Ob Lb 
LL22°91 bb 
cELZ Ob bb 
LOE9'9t LP 
€9E9 91 bP 

S8ic9 91 LP 

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E0rZZ 91 Le 
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c00P9 91 bP 

LLGE9'9L LP 


WOLtis 
WOL Wis 


MZ9S'¢0 220 
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Mg9S'b0 cL0 


LL69L'91 Lb 
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WtNO WLS 


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sysejopnw 


soley 


AMAMNAYAANYNAMNMNMNYNMANNNMNN MMO 


wnwixey wnwiuiy 
(1ud) az1s wean 


|euojssa9ons 


M8EP 60 220 
MObb $0 220 
M6Eb'b0 220 
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MZZ2'v0 220 
M182 v0 220 
M6Z1t'¥0 220 
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Ms02'F0 220 
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MS66€0 220 
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8692991 be 
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982 91 lb 
€v082 91 tp 
cOcZZ 91 bb 
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46/01/60 
26/01/60 
26/90/60 


c2BEO Ot LP 
89629 91 LP 
ZLPEO OL LP 
80222 91 bb 
ZO69Z 91 bP 
ev082 9 LP 
S008Z'9} bP 
SO8Z'91 LP 
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26/01/60 


M626'E0 220 
M26 £0 220 
MZ96'€0 220 


SONLISNOT 


€c9 9b bP 
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cL8c9 91 Lb 


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‘day uoneys 


B5a 
Reference Areas 1992 


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B5b 
Reference Areas 1995 


yew aqn} podiydwe dn-pa 
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BSc 
Reference Areas 1997 


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