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FINAL SAMPUNG AND ANALYSIS PLAN

AMENDMENT NO. 2

REMEDIAL INVESTIGATION/FEASIBIUTY STUDY

NYANZA OPERABLE UNIT Ill ·SUDBURY RIVER STUDY MIDDLESEX COUNTY, MASSACHUSETTS

NUS Corporation

EPA Work Assitlnment No. 02-1 L 15 Contred No. 61-W8·CI117

Odober 1!190

119002SF

FINAL SAMPLING AND ANALYSIS PLAN

AIIENDIIENT NO, 2

REMEDIAL INVESTIGATION/FEASIBILITY STUDY

NYANIA OPERABLE UNIT II I - &ODIOIIY RIVER STUDY

MIDOLE&EX COUNTY, IWIIIACIIUI!:'I"r&

NUS Corporation

EPA llork Aooi9nMnt Jlo, 02-lLlS Contract No. 68-WI-0117

october 1990

Project Man&CJer Walter Mar4

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SIIC'l'IOII

1.0

2.0

3.0

4.0

!!!!!!!!! 3-l

3-2

!!!!!!!!! 4-lA

4-18

4-2

'l'ABLB or COfta'1'8 PIIIAL BMPLiaG AIID AMYLSIB- 110.

IIYAIIIA III - IIUDIDIY RIVD ftiiDY

!!!!!! IllftiODOC'l'IOII

BI'l'B IIAIIAG__,. PLAII

GaaAL PIIILD OPIIIIA'l'IOIIB AIID QUALI'l'Y AI8UIIAIICS/QUALI'l'Y COftiiOL 3.4 . 1 Saaple Identification Syatem 3.5.1 Field Quality Control ].14 O.ta Quality Objectives

PIIILD BMPLiaG PLAII 4.2 Field Inveati9ation Activitie•/Phaae II 4.2.1 Culvert Inapection 4.2.2 Surface Water laaplinq 4.2.3 Bedi-nt llellpling 4.2.4 Trolley Brook Wetlilnd Saaplin9

'l'AIILBB

!!!!!! FIELD QUALITY CONTROL SAMPLE IIOIUWIY

PROPOSED SAMPLING AIID AIIALYBIS PROGRAII/PIIASE II

PIGOUB

PAGE

PROPOSED PHASE II BAIIPLIIIG LOCATIONS MAP POCKET

PROPOSED PHASE II SAMPLING LOCATIONS MAP POCKET

TROLLEY RRODK SEDIIIENT SAMPLING LOCATIONS MAP POCKET

0

1. 0 Ill'rRODUCTIOII

This Final Sampling and Analysis Plan Aaendment No. 2 provides additional sampling details for performing Phaae II aediaent and surface water aa11pling and a culvert video inspection provram tor the Nyan1a III-Sudbury River Study in Ashland llaaaachuaetta. The Final supling and Analyaio Plan dated April 1990 will be IIOdified to i nclude the Phase II aampling .

The Final Work Plan - Volume II (August 1989) includes objectives, scope and general activities to be conducted in this auple round. The atudy area will, however be expanded in the Sudbury River to include river aediaent aupling pointe to the confluence of the Sudbury and Concord Riven, and a preliminary evaluation of some wetland in the river basin . Taaka included in Phase II aaapling ares

o Surface water and Sediment aamplin9 to fill in data gapa in Phaae I aaapling .

o Sedi..nt aampling in the Sudbury River tr011 the area of Beard Pond to the Concord River to deteraine the downriver extent of •ercury contuination in aediunta.

o Surface water and aediaent aaapling to provide additional background data.

0 Che•ical Brook Culvert video inapection to deteraine it the culvert providea a continuing aource of contaaination to the groundwater.

0 Evaluation of the depth and extent of cont•ination in the Trolley Brook Wetland.

z.o SUB MUG- PLAN

A detailed diacuaa ion addreaain9 the Site Manageunt Plan, atudy area control, organiaation and key peraonnel reaponaibilitiea ia preaented in Section 2. 0 of the Final SAP (April 1990).

A lield vehicle will aerve aa a aobile tield oftice during the Phaae II aaapling. A •atep-van• will be uaed to atore equipaent, provide apace for lield office taaka including preparation of IIJIPlea for ahip~ent, and provide a aecure facility for atorage of ...plea under chain of custody prior to ahipaent to a laboratory. Additionally , a temporary atora9e facility ILly be rented for atorage of equipment and aample shipping uterials .

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3.0 CBIIBIW. PIELD OPERATIOIIS AIID QOALI'rr AS~/QUALITY COftiiOL

The procedures dilcuaaed in Section 3. 0 of the Final SAP are generally applicable to Phase II aupling round. Additional Phaae II requireaenta and sample identification nUIIbera apecitic to thh phaae are diacuaaed in thil eection.

3. 4.1 a-tl• Identification Sxat•

The a.-ple identification ayatee described in Section 3 .4 .1 of the Final SAP will continue to be utilized during thia auple round. Ptlaae II aaapling is anticipated to begin in early Septellber, after the aonthly sampling round. The Septellber auple round h the tenth round and the Phase II sample round will be the eleventh round. Therefore the Sample Identification for Phase II will be as follows:

Media Location t Suple t Round

NNll MN ll

'l"he location nuaben will continue in consecutive order following Pbaae I l~ation nuabera. The firat aediMnt aaaple location will be IDl-151 and the tint aurface water aaaple location will be nWibered ID3-12J. ror example, a aurtace water aaaple collected durin9 lound 10 fr011 location 123" lr01l a depth of 5 feet would be deai9nated aa:

8113-12]-0510

A duplicate auple from that location would be:

8113-123-0SlO-DU

A aediMnt aaaple collected during Round 11 troca location 151 from a depth of 6 to 12 inchea (aecond depth interval) would be deaignated aa 1

8D3-l5l-02ll

A COitPlete diacuaaion of the Suple Identification Syatem ia included in the Pinal SAP.

3.5 . 1 Field Q!!!Uty Control

Pield Quality Control auplea are defined in the Final SAP, Section 3.5.1. Field quality control auplea to be collected during Phaae III aaapling are aummarhed in Table 3-l.

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RElD QUAUTY CONTIOL SAMPLE SUMMARY PHASE II

NYANlA Ill · SUDIURY IUVER STUDY

NUMBER MEDIA OF

SAMPLES

Surface Water \1

\1

\1

\1

\1

\1

\1

\1

\1

\1

\1

\1

\1

SeditMnt 111 .. .. 124

124

124

124

22

22

6

FIELD RINSATE TRIP BOTTLE DUPLICATES BLANKS BLANKS BLANKS

2 2 1 .. 2 2 1 1

2 2 3 1

2 2 1 1

2 2 1 1

2 2 1 1

2 2 - ..

2 2 - ..

2 - - -2 - - ..

2 2 - -2 2 .. 1

2 2 - 1

19 19 1

9 - -9 .. -13 13 13

13 13 1

13 13 I

13 13 -3 .. -) I -I I - ...

(1) F • Filtfl'~ S.mptt, UF • Unfiltered Simple (2) Common lens include : so._ S2, Cl, NO~NOJ, NH1and TKN

ANALYSIS REQUIRED(!)

RAS Metals (F)

RAS Metals (UFI

RAS Volatiles (UF)

RASBNA(Uf)

ltAS ~tiPCBs (UF)

Site Sptc:ific Organics

Hardneu, Alkahn1ty TDS, TSS (Uf)

tWdMH, Alllkinhv (F)

pH, Specific Condu<ted (Uf)

Oi_.Md OxY9"' (Uf)

IOO(Uf)

Common Ions Ill (UF)

Common Ions Ill (F)

lltASMetiiS

GrlinSi1t

TOC

W Volatile Organiu

AA.SINA

AAS PflUPCBs

Site Spec:•f ic Org•mu

pH. Eh

COD, BOD

Chromium (~xaYalent)

()) Site Spec ific Organics induct.: aniline; benzidine; t-napth~amine; 2·Nipthy4arrune; o-nttroc:hlorobenltnt, p· nitrotoluene, o-tolidine and o-dian!iidint.

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3.U Data Quality Objective•

A dbcuseion ot' Data Quality Objectives (DQO) utilized on thh project is presented in the Final SAP Section 3.14. The analyses, uthoda and 000 levels for Phase II sampling are presented in Table l-2 ot this document.

C. 0 PIIILD SAIIPLIIIG PLAII

The following aections SWIIIU.rize the proposed field activitiea to be conducted in the Phase II proqram. The Final SAP addr••••• suple preservation techniques, equis-ent decontaaination and suple collection procedures. The primary objectives of Phase II activities are :

o To collect "fill in.. samplea to aug•nt Phase I sa.ple locations.

o To determine the down river extent of aercury contuination in Sudbury River Sediunt..

o Collect preliltinary infor..tion on aercury contuinatlon in wetland areaa adjacent to the Sudbury River.

0 Collect inforlll.ltion on the level• of urcury contuination at benthic or9aniaa collection point1.

0 To collect preliminary data on the vertical and horhontal di1tribution of contaainantl in Trolley Brook wetland.

0 To collect inforution on levell of hexavalent chromium in area where elevated level• of total chr011iu11 had been detected in Pha1e I.

•• 2 Pield In•e•tl9!tion Acti't'iti••!Pba•• II

Followin9 approval of the SAP Allendaent, NUS will beqin ~~abllhation. A briefing will be held for field teuaeabeu prior to initiation of field work. The brietin9 will include a review of the Final Work Plan, SAP Mendlllnt field procedure• and Health

~~=c~:::dtyi.f1::ct1t"ocnlu~~g :; ::r.n:~~U:.n~~ !h11t!~nav1an~ill :: ~~abllhed to provide a field office, equi~ent 1toraqe facility, and a 1ecure 1aaple 1torage and lhis-ent facility .

The 1ubcontractor to conduct the video culvert in1pect1on will be re1pon1 i ble for aobilhinq and de.,biliaing nece11ary equipaent in order to per for• thil work .

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No fixed field facilities will be utilized durinq the field operations therefore demobilization will be minimised .

4.2.1 Culvert Inspection

NUS visually inspected the Chemical Brook and Trolley Brook culverts to determine the applicability of conductinc; a video inspection proqram. Based on results of the reconnaissance, only the Chemical Brook Culvert will be video inspected. The purpose of this task il to determine the 9eneral characteristics of culvert inte9rity and to determine if contaminated water or sediment bein9 transported by the culvert 11 leakinq into the groundwater via breaks in the culvert.

Screeninq and selection of a pipe inspection subcontractor will be initiated upon approval of the SAP Mendllent. The general location and direction of the culvert has been 4eterained and the video inspection will document in •ore detail the orientation of the culvert, interior conditions, potential for water/ae4iMnt leakage, aediMnt depoaition in the culvert, and the ahe and location of pipes or drains diacharginq into or out of the culvert .

To record the inspection, a pipe inspection floating televiewer with a wide angle lena will be floated /towed through the culvert. Water level, debris and other obstructions will atfect the coverage of the inspection. The use of an on-lite .anitor at the ground surface will enable real time viewinc; of culvert conditions at the tiM of the eurvey. The video tape will be keyed into eignificant structures or features within the culvert to provide docUMntation of culvert conditions.

4.2.2 Surface water lulpling

The Phase II surface water aaapling will be liaited to the collection of aaaples at 11 locations and installation of a staff gauc;e at the Pleaeant Street bridge upstream of Mill Pond .

Two surface water samplea will be collected fro. Mill Pond to provide "fill in" coveraqe of Phase I saaplinq . Three additional background water auplea will be collected froe the Sudbury Riveq one in the vicinity of location SWl-103/104 and a second from the backc;round tiah suple site near the intersection of Route 15 and Southville Road, The thir4 will be collected fr011 Cedar Swamp Pond. An additional six euplea will be collected at benthic saaple collection aites includinc; downstream of the Saxonville Dam (1), downstream of the outlet of Reaervoir 1 (1), in the vicinity of suple SDl-116 (1), downstream of the outlet of Mill Pond (1), and downstream of the pond at the intersection of Route 15 and Southville Road . These aitea are illuatrated on Fic;ure 4-lA.

119002SF 7

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,.---..1The technical approach, sampling and decontamination procedures outlined in the Final SAP will be followed during Phase II I'tr'It~·• ~ sampling. Table 4-1 of the Final SAP presents sample container and preservation requirements, aa well as analyses required for all f (1Phaae II eamplea. Field quality control auplea are preeented in Table 3-l. Analytical methods and associated OQO requirements levela are presented in Table 3-2.

4. 2. 3 BediMnt SUpling " ~~ X~Technical Approach 'iil"'

Sediment sample locations were selected in order to: iri&J

1. Fill in data gaps in Phase I saapling. =~ ~~ .....2. Determine the downriver extent ot mercury contuaination ,..,in sediments. .. ..

OIA 0 ...

3. Determine it wetland areal adjacent to the river have ,. .. been iapacted by mercury contaaination. ""c

4 . Provide additional background aed.iaent aamplea in the ..X

area of the background fiah aaaplea.

The locationa indicated on Figure 4-lA and 4-18 are approxiaate, and are baaed on inapection of •P• and knowledge of the area 0 covered in Phaae I aaapling. The e~act location• will be choaen in the field following a reconnailaance of the areaa to be aaapled. bact aaaple location aelection will be baaed priaarily on aediMnt availability and acceaaibility to aaaple locationa. Figure 4-lA ahould overlay Figure 4-18 at the "Match Linee".

Surface aedi•ent eamplee (0-6" depth (aaaple depth interval 01 )) vill be collected from 59 aaapling location• aa preeented in Figurea 4-lA and 4-lB. In addition, aubaurface aediMnt auplea vill be collected from a depth of 6 to 12 inchea (auple depth interval 02) at 19 of theae location• to provide inforution on vertical diatribution of contaainanu.

A total of 13 "fill in• and bAckground aaaple locationa will be collected and analy1ed for a broad apectrum of contuinanta aa lilted in Section 4.1 . 6 and preeented in Table 4-1 of the Pinal SAP. The other U aedi•ent aaaple location• will be analy1ed only for inorganic contaminant•, grain aile and Total Organic Carbon (TOC). Sediment aample locationa are preaented on rigurea 4-lA and 4-18.

II~0025F

The general technical approach, sampling and decontamination procedures outlined in the Final SAP will be followed during Phase II aamplin9. Table 4-1 of the Final SAP preaent1 •ample container and pre1ervation requirements, as well •• analy1ea required for all Pha1e II 1ample1. Field quality control aamplea are pre11nted in Table 3-1 . Analytical aethoda and auociated 000 requirement• are pre1ented in Table 3-2.

4. 2. 4 Trolley Brook Wetland &&.pling

Unconaolidated 11diment1 in the Trolley Brook Wetlands area will be aaapled to provide preliminary information on the horizontal and vertical diatribution of contaminants in the wetland. Much of the wetland ia inundated with more than 6 feet of water a1 Ulu1trated in Figure 4-2 . Sampling operations will be conducted ueing a coabination of technique•.

Selection of a technique at each location will be baaed on acceaa, aaaple recovery and colt effectiven•••· The area of intereat ia the area of free a tanding water, which aay have accepted larger quantitiea of contuinante than areae which are lea• wet. Area a which are flooded ..y have a IDOre extenaive vertical diltribution of contaaination if proc111 water wa1 diapoaed of into theae.

"""'. ReMd.ial action• being conducted on the Nyansa Site adjacent to the _,1 wetland ia ongoing. SediMnt/eoil ia being excavated to 4 feet

~!:.Y~:~:~ ~~rftah~~· .f:i~!~e!n~~r:::~~,a;~l':.t':Aall ::o:gv!~c=~ to a depth of eix feet below the top of aediMnt .

A total of thirty one ( 31) eediunt/1oil boring• will be advanced in the Trolley Brook Wetland area. A total of 21 Sa•plea collected fra. areal of free etanding water will include a 6 foot aaaple divided into 4 diacrete interval auplea. Intervale to be aaapled and analysed aa diacrete 1aaplea include, 0 to 2, 2 to 4, 4 to 5 and 5 to 6 feet below ground aurface . The bottom interval• have been reduced to one foot to 110re cloaely define the deepeat extent of contuination. Ten (10) Suplea collected from areaa adjacent to the open water or thoae which appear to be affected only by aeaaonal flooding will extend 2 feet below ground aurface and include 2 dhcrete interval eaaplee, 0-1 foot an 1 to 2 feet . A total of 104 aediment eample1 will be analysed for TCL volatile organica, BNA, Peaticidea, PCBa, lite apecitic organic• and metala.

Where acceaa by foot ia available, eamplea will be collected with a hand auger. A boat will be utilized in areaa that are flooded and inacceaaible by foot . Sampling by boat will be conducted by ~~anually driving eating throuqh an entire aample interval and recovering the aample uainq a hand auger. The auger will not be driven beyond the casing ehoe. Sampling will proceed in thia manner until unual advancement of the caeing h not poaaible . If

W90025F

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) additional aample intervals remain to be aaapled, a 3 inch diueter aplit apoon aupler will be utilhed and the caaing Mchanieally driven with a h&DUDer drop. If additional aediMnt or aoila are required for analylia, a aecond hole will be advanced aa cloae aa poalible to the tint while inauring that a repreaentative 1ediment or aoil profile ie collected .

A boring log will be completed for each aupling location. SUplea will be deacribed udng the Unified Soil Ch,aaitication Syatem {USCS) which h printed on the back of each boring loq deacription form. The following information will alao be recorded on the boring loq;

o S&aple location

o Suple number and type

Suple deptha /aample inte rval

o SUple recovery

All toola and caaing will be re1t0ved trOll the hole and a buoy placed at the location . Thoae locationa adjacent to the open water will be urked with a aurvey atake . Docu.entation of loiJIPlea will be perforM«! in accordance with section 3.1 of the Final SAP. llevationa and location• of the vetlanda will be deter•ined at the co.pletion of the protru by optical aurvey Mthoda . I urvey control around the wetland will be eatablhhed referrencinq exiatinq control. 0 caainq will be decontaainated prior to borinq advancnent at each location and all auplinq toola will be decont..inated prior to collectin9 each ...ple . Thia decontaaination procedure is deacribed in detail in the Final SAP, hction 4.1.5.1.

Decontuination fluid• generated durin9 the Trolley Brook Wetland ~lin9 will be collected and 1creened for volatile orqanica with a Photovac Gaa ChrOIUtotraph. If volatile or9anic1 are not detected in the water, it will be diacharqed to 9round aurface . If volatile orqanics are detected, the waatea will be container bed in 55 9allon drums and appropriate diapoaal optiona will be conaidered.

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W90025F 10

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Target Sheet

US EPA New England Superfund Document Management System

File Break: 3.2 –RI Sampling and Analysis Data

Maps associated with this record may be reviewed, by appointment only, at the EPA Region 1 Records Center in Boston, Massachusetts.

For assistance please contact the EPA New England Office of Site Remediation and Restoration Records and Information Center

Telephone: (617) 918-1440 Email: R1.Records-OSRR@epa.gov