Report on Lower Housatonic River Sediment PCB Sampling

I I Report on Lower Housatonic River Sediment r PCB Sampling D n r i R General Electric Company Pittsfield, Massachusetts L December 1996 o o L o O o I NJ OJ o

BBBLASLANDJOUCKjaEJL^ INC, engineers &sc/enf/sfs Area Environmental & Facility Programs General Electric Company WO Woodlawn Avenue. Pittsfield. MA 01201

Transmitted Via Federal Express

December 19, 1996

Charles G. Fredette Mr. Bryan Olson Connecticut Department of USEPA, Region 1 Environmental Protection Waste Management Section 122 Washington Street JFK Federal Building, HRR-CAN3 Hartford, CT 06106 Boston, MA 02203-2211

Re: Lower Housatonic River Sediment PCB Sampling Report

Dear Mr. Fredette and Mr. Olson:

Enclosed please find the Report on Lower Housatonic River Sediment PCB Sampling. This report includes a brief summary of the PCB data compiled from appropriate files maintained by the Connecticut Department of Environmental Protection (CDEP) and the United States Environmental Protection Agency (USEPA) of the section of the Housatonic River below the Derby Dam. As discussed, this report only describes PCB data from this reach, although other available sediment data are presented in the attachments.

Please call us with any questions.

Very truly yours,

Andrew T. Silfer, P.E. Remediation Project Manager

DCK/rmg SYR-T \4J96I137WPD cc: R. Bell, Esquire DEP J.R. Bieke, Esquire, Shea & Gardner J.L. Cutler, DEP R.F. Desgroseilliers, GE R.K. Goldman, P.E., L.S.P., Blasland, Bouck & Lee, Inc. M. Hoagland, EPA D.J. Luckerman, Esquire, EPA 0 J. M. Nuss, P.E., L.S.P., Blasland, Bouck & Lee, Inc. S. Steenstrup, DEP A.J. Thomas, Esquire, GE A. Weinberg, DEP December 19, 1996 Page 2 of2

S.P. Winslow, Esquire, DEP Housatonic River Initiative (w/o enclosure) Public Information Repositories (ECLI-R-IV (A)(l) and (2))

Enclosure i—

" Report on Lower \ Housatonic River Sediment [ PCS Sampling r r i

General Electric Company Pittsfield, Massachusetts

December 1996

I 1 BLASLAND, BOUCK 8t LEE INC. onglnoort A tolentltts 6723 Towpath Road, P.O. Box 66 Syracuse, New York, 13214-0066 (315)446-9120 I Table of Contents

I. Introduction 1

IJj II. Data Compilation 2

III. Information Summary 3

I A. USEPA PCB Data 3

B. CDEP Analytical Data 4

Tables Table 1 Summary of Lower Housatonic River Sediment Sampling Information Table 2 Summary of Lower Housatonic River Sediment PCB Analytical Data

p Figures Figure 1 Lower Housatonic River Sediment Sampling Locations

j Attachments ! '<• Attachment 1 Data Set - USEPA-1 r Attachment 2 Data Sets - CDEP-1 through CDEP-9 i

BLASLAND. BOUCK & LEE. INC. SYR-TW561137 wro-12/19/96 engineers & scientists f / Introduction

This report has been has been prepared by Blasland, Bouck & Lee, Inc. (BBL) at the request of the General Electric Company (GE) to summarize available PCB data for sediments associated with a ten-mile stretch of the Housatonic River. The section of the river addressed by this effort is the estuary portion which includes the river from its mouth at Long Island Sound to a point approximately ten miles north at Derby, CT ("lower Housatonic River"). This data compilation effort involved a review of information available from the United States Environmental i Protection Agency (USEPA) and the Connecticut Department of Environmental Protection (CDEP). In general, the analytical information obtained through the USEPA and CDEP consisted of a total of 181 sediment samples (including 14 duplicate samples) collected from 153 locations from the lower ten miles of the Housatonic River. I These samples were collected during the time period ranging from September 1981 to August 1995.

Section II of this report briefly describes BBL's data compilation efforts, while Section III provides an overview of the compiled PCB database. In addition to the report narrative, Table 1 summarizes the information reviewed by BBL, Table 2 summarizes the PCB data compiled from this information, and Figure 1 presents the approximate sediment sampling locations (where known).

Information obtained from the USEPA and CDEP is included as Attachments 1 and 2, respectively. Although Attachments 1 and 2 contain, in addition to PCB data, other sediment analytical data, those data are not specifically C discussed within this report since, pursuant to discussions with the CDEP, the focus of this effort was sediment PCB data. This information has been included in Attachments 1 and 2 for completeness.

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a BLASLAND. BOUCK & LEE, INC. SYR-TVM541137WTO-12/19/96 engineers 4 scientists i // Data Compilation

In June 1996, BBL, on behalf of GE, contacted Mr. Michael Jasinski at the USEPA in Boston, MA regarding the availability of sediment PCB data for the lower Housatonic River. Subsequently, Mr. Jasinski determined that the only sediment PCB data for the lower Housatonic River maintained in USEPA files were associated with the USEPA Raymark Industries Federal Super-fund Site in Stratford, CT. In August 1996, Mr. Jasinski forwarded a data package (Attachment 1) along with associated mapping for sediment sampling conducted in the lower Housatonic River area for that Superfund Site. As shown on Figure 1, many of the sediment samples were collected from wetland and tributary areas immediately adjacent to the Housatonic River. These data are further discussed I in Section III.

BBL made similar inquiries on GE's behalf in June 1996 to the CDEP. BBL coordinated this search effort with Mr. George Wisker, Senior Environmental Analyst at the CDEP. Mr. Wisker conducted a preliminary review of appropriate files, and concluded that BBL would need to make an office visit to fully review the pertinent files. On August 6, 1996, BBL reviewed the relevant CDEP files in Hartford, CT, obtaining available sediment PCB data. r The available sediment PCB data included nine Housatonic River dredging permit applications made to the State of Connecticut between 1981 to 1995. The information obtained during that review is included with this report as E Attachment 2. i i

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BLASLAND BOUCK&LEE. INC r SYR-TVM5AH37WPD- 12/19/96 engineers A scientists E /// Information Summary

In genera], the analytical information obtained through the USEPA and CDEP consisted of a total of 181 sediment samples (including 14 duplicate samples) collected from 153 locations from the lower ten miles of the Housatonic River. These samples were collected during the time period ranging from September 1981 to August 1995. For almost all the sediment sampling data provided, information regarding sampling depths was not available. The i PCB concentration s of the sediment samples ranged from non-detect to 18.2 ppm. Approximately 85 percent of the results exhibited PCB concentrations less than 1 ppm, with only four exceeding 10 ppm. The overall average PCB concentration of all sediment sample results was calculated to be 0.92 ppm (using one-half the detection limit I for non-detec t results and a zero value for unknown detection limits) or 0.90 ppm (using a zero value for non-detect results and unknown detection limits).

Approximately 80 percent of the PCB results contained Aroclor-specific information. Where such information was li available, Aroclors 1262 and 1268 comprised approximately 90 percent of the PCB detected. These Aroclors are a more highly chlorinated biphenyl than those found at any sampling location upstream within the river system. Aroclors 1254 and 1260 comprised most of the remainder of the PCB detected in these samples, while Aroclor 1242 was reported for one sample result. For the four sediment samples with PCB concentrations above 10 ppm, Aroclor 1268 comprised approximately 75 percent of the detected PCB, while Aroclor 1262 comprised the remainder.

The highest PCB concentrations in the available USEPA and CDEP data were associated with sediment samples collected from an area along the Housatonic River adjacent to the City of Stratford. The Raymark Industries, Inc. Federal Superfund Site, which comprises a number of disposal areas in Stratford, was confirmed by USEPA to contain PCBs in surficial soils and to be the source of PCBs in sediments of one creek leading to the Housatonic River. These disposal areas are upstream of the Housatonic River and may be a source of PCBs for the Housatonic River sediments. Available sampling information upstream and downstream of the City of Stratford in the lower I Housatoni c River show PCB concentrations to be primarily non-detect in sediments, with the highest PCB concentration of 0.161 ppm found at an upstream sample location.

I A summary of this information is included in Tables 1 and 2, while sampling locations (where known) are shown on Figure 1. (For a number of the sampling results, the sampling locations were not identified in the information provided by the USEPA or CDEP; hence, these locations are not shown on Figure 1.) Provided below are brief summaries of the USEPA and CDEP data sets which include information pertaining to:

• Number of sediment samples collected: • Date of sampling; • Parties conducting sampling and analyses; • Location of sampling; and o • PCB range of sediment sampling results. A. USEPA PCB Data

The sediment PCB data obtained by BBL from the USEPA is designated as data set "USEPA-1" on Tables 1 and 2. These data were collected in June 1993 and between August 1994 and August 1995 as part of investigations I associated with the Raymark Industries, Inc., Federal Superfund Site, located in Stratford, CT. The June 1993 sampling event involved the collection of 22 sediment samples (denoted with prefix "HR" in i Table 2). Sample s were collected by USEPA Region I from the mouth of the Housatonic River at Long Island Sound to a location north of the City of Stratford, CT (Figure 1) and analyzed by RECRA Environmental, Inc. These samples contained PCBs at concentrations ranging from non-detect to 0.790 ppm (estimated value).

BLASLAND. BOUCK & LEE. INC SYfm4456ii37wro~ iz/19^6 engineers S. scientists 3 I

Eleven of the samples were non-detect [detection limits ranged from 0.041 ppm (estimated value) to 0.45 ppm; note that not all detection limits were available]. PCB concentrations ranged from 0.034 ppm (estimated value) to 0.790 ppm (estimated value) for the remaining 11 samples. Aroclors detected in these samples were reported as Aroclors 1262 and 1268 (Attachment 1).

1 The second sampling event, occurring between August 1994 and August 1995, involved the collection of 133 sediment samples (including 14 duplicate samples). Samples were collected by USEPA contractor Halliburton NUS and analyzed by CompuChem Environmental Corporation. These samples are denoted with prefixes "BD", I "BN", "BP", "BS", "CP", "DB", "ES", "FP", "GM", "HB" "MF", "SD", "TT, and "WP" in Table 2. Approximately one-third of these sediment samples were non-detect (detection limits ranged from 0.058 ppm to 0.450 ppm), while the remaining data exhibited PCB concentrations ranging from 0.018 ppm (estimated value) to 18.2 ppm (estimated value). Aroclors reported in these samples primarily included Aroclors 1262 and 1268. Aroclors 1254 and 1260 were also detected but at a concentration below 1 ppm for most samples. Additionally, one sample (SD11) was reported with an Aroclor 1242 concentration (estimated value due to the limited sample volume), but at a level below 1 ppm.

As shown on Figure 1, these sediment samples were collected along the western side of the Housatonic River in the City of Stratford. However, the information provided by USEPA did not include specific sample locations for 57 of the samples. Those samples that could be located are shown on Figure 1, while all sampling data, including those for samples without known locations, are included in Tables 1 and 2. Sample results from the unknown locations ranged in PCB concentration from non-detect levels to 18.2 ppm (estimated value) PCB at location SD24. As noted above, the PCBs in sediments in this area seem likely to be associated with the I Raymark Industries, Inc. Federal Superfund Site. B. CDEP Analytical Data I The CDEP files provided sediment PCB data associated with nine dredging permits filed between 1981 and 1995. These files are listed individually as data sets CDEP-1 through CDEP-9 in Tables 1 and 2 and in Attachment 2. Each of the individual data sets are discussed below. Sampling locations for all these data sets (where known) are shown on Figure 1. For the CDEP data, depth-related sampling information was available for only data set CDEP-6.

Data Set CDEP-1 Two composite samples (A&B and C&D) were collected by Breakwater Key Marina, Stratford, CT in January 1995 and analyzed by Milford Materials Testing Laboratory, Milford, CT. These two samples were collected * I from the Breakwater Key Marina property near the mouth of the Housatonic River (Figure 1). PCBs were not detected in either composite sample (0.01 ppm detection limit).

Data Set CDEP-2 Seven sediment samples (TPA-1 to TPA-7) were collected in April 1994 by the TPA Design Group and analyzed by the Connecticut Testing Laboratory, Meriden, CT. Six of these samples were located in the river channel from Carting Island south to the limit of the outer breakwater (Figure 1). The seventh (TPA-7) was collected I from a settling pond not shown in the CDEP information (and not shown on Figure 1). PCBs were not detected in any of these samples (0.01 ppm detection limit).

Data Set CDEP-3 Two composite sediment samples (P1-P7 and P8-P12) were collected by Northeast Utilities Service Co., Hartford, CT, in December 1992 and analyzed by the Environmental Science Corporation, Middletown, CT.

BL^SLAND, BOUCK & LEE, INC smiA4«56i 137wo-12/19/96 engineers * scientists 4 E

These samples were collected from the eastern side of the Housatonic River at the Northeast Utilities Service Co. Devon Generating Station located north of Route 1-95 (Figure 1). PCBs were non-detect in both samples (0.1 ppm detection limit).

Data Set CDEP-4 i Three sedimen t samples (Stations I, J, and Q) were collected and analyzed by the U.S. Army Corps of Engineers (USAGE), New England Division, Hubbardston, MA, in May 1992. These samples were collected between the Town of East Derby and the City of Stratford (Figure 1). PCB concentrations for these samples were 0.017 ppm, I 0.19 ppm , and 0.084 ppm, respectively.

Data Set CDEP-5 Two composite sediment samples (A and B) were collected by the Pootatuck Yacht Club, Stratford, CT, in March 1992 and analyzed by Milford Materials Testing Laboratory, Inc., Milford, CT. The two composite samples were prepared from eight sediment samples (four for each composite sample) taken from river sediments on the west side of the river, west of Nells Island (Figure 1). PCBs were non-detect in both samples (0.010 ppm detection limit).

Data Set CDEP-6 One sediment sample [(87-0418 (6-inch depth)] was collected by Cutter Operating Corp., Stratford, CT, in April 1987 from the Harbor Woods Marina located in Stratford, CT (Figure 1) and analyzed by Environmental Laboratories, Inc., West Haven, CT. PCBs were non-detect (0.05 ppm detection limit) in this sample.

Data Set CDEP-7 i One composit e sample (Composite 1-7) and two additional sediment samples (8 and 9) were collected by Northeast Utilities Service Co., Hartford, CT, in March 1985 from river sediments at the Devon Generating Station, north of Route 1-95 (Figure 1), and analyzed by Environmental Science Corporation, Middletown, CT. i PCBs were non-detect in all these samples (1 ppm detection limit). Data Set CDEP-8 Two sediment samples (1A and 2A) were collected and analyzed by Materials Testing, Inc., Stratford, CT, for Rowan Building Systems, Inc., Southport, CT, in October 1982. As shown on Figure 1, the two sediment samples were collected at the Harbor Woods Marina, Stratford, CT, on the western side of the Housatonic River. n PCB concentrations for these samples were 1.8 ppm and 2.0 ppm, respectively. Data Set CDEP-9 Four sediment grab samples (Stations 1 through 4) were collected by Management of Resources and the Environment, Glastonbury, CT, in September 1981 and analyzed by Environmental Science Corporation, Middletown, CT. These samples were collected south of East Derby, CT (Figure 1). PCBs were detected in all L four samples ranging from 0.014 to 0.161 ppm. I I

BLASLAND. BOUCK & LEE, INC. SYVTM456M 37 wro-12/19/96 engineers & scientists I e i

I Tables

I BLASLAND, BOUCK & LEE, INC. onglnoors A ! c / o n f / i f j

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TABLE 1

GENERAL ELECTRIC COMPANY PITTSFIELD, MASSACHUSETTS

SUMMARY OF LOWER HOUSATONIC RIVER SEDIMENT SAMPLING INFORMATION

1. USEPA Data Package • Raymark Federal Superfund Site

I DATA Set SAMPLING SAMPUNG DATE PCS SAMPLING ANALYSES PARTY (Laboratory) CONDUCTED

USEPA Region I 1993 (RECRA Environmental, Inc.) 22 Sediment Samples Pesticides, PCBs. USEPA-1 P Halliburton NUS 1994-1995 (CompuChem 133 Sediment Pesticides, PCBs. Environmental Corporation, Inc. Samples (including 14 duplicates)

Connecticut Department of Environmental Protection Housatonic River Dredging Permit Applications

DATA SET SAMPUNG SAMPUNG DATE SAMPLES ANALYSES PART* (Laboratory) COLLECTED

CDEP-1 Breakwater Key 1/95 (Milford Materials Testing 2 composite sediment Metals. PCBs, L Laboratory) samples Pesticides. SVOCs CDEP-2 TPA Design 4/94 (Connecticut Testing 7 sediment samples Metals, SVOCs, PCBs Group Laboratories) I CDEP-3 Northeast Utilities 12/92 (Environmental Science 2 composite sediment PCBs, Metals, Service Co. Corporation) samples Pesticides

CDEP-4 US Army Corps 5/92 (US ACOE - Environmental 3 sediment samples SVOCs, PCBs, I of Engineers Laboratory) Metals, Pesticides CDEP-5 Pootatuck Yacht 3/92 (Milford Materials Testing 2 composite sediment SVOCs, PCBs, Club Laboratories) samples Metals, Pesticides

CDEP-6 Cutter Operating 7/87 (Environmental Laboratories, 1 sediment sample Metals, PCBs Corp. Inc)

CDEP-7 Northeast Utilities 3/85 (Environmental Science 3 sediment samples Metals, PCBs, VOCs Service Co. Corporation) (including 1 composite)

CDEP-8 Materials Testing, 10782 (Materials Testing, Inc.) 2 sediment samples VOCs, PCBs, Metals Inc.

CDEP-9 Management of 9/81 (Environmental Science 4 sediment samples VOCs, PCBs, Metals Resources and Corporation) the Environment

Note?;

I 1. "Lowe r Housatonic River" - Housatonic River mouth at Long Island Sound north to Derby, CT. 2. Data obtained from USEPA on August 2,1996 and from the CDEP on August 6,1996. 1

12/11/96 SYR-T \31161137 WPD I

TABLE 2

GENERAL ELECTRIC COMPANY PITTSFIELD, MASSACHUSETTS

SUMMARY OF LOWER HOUSATONIC RIVER SEDIMENT PCB ANALYTICAL DATA

SAMPLE DATA SAMPLING TOTAL PCB IDENTIFICATION SET DATE CONCENTRATION (pptn) BD01* USEPA 1 8/17/94 ND(0.067) I BD02* USEPA 1 11/17/94 ND(0.067J) [NO(0.067J)J BN01 USEPA 1 11/16/94 • 0.144J BN02 USEPA 1 11/16/94 ND(0.083J) BN03 USEPA 1 11/16/94 ND(0.067J) [ND(0.067J)] i; BN04 USEPA 1 11/16/94 ND(0.067J) BN05 USEPA 1 4/18/95 0.050 BN06 USEPA 1 4/18/95 ND(0.067) [ND(0.067)J BN07 USEPA 1 4/18/95 0.032J [0.037 J] BP02* USEPA 1 11/10/94 ND(0.092J) BP05* USEPA 1 11/11/94 2.60J BS01 USEPA 1 8/16/94 1.61 BS02 USEPA 1 4/18/95 0.380 BS02 USEPA 1 11/11/94 0.1 40J BS02 USEPA 1 8/18/94 1.1 [2.77] BS03 USEPA 1 4/18/95 2.20 BS04 USEPA 1 4/18/95 ND(0.330) BS05 USEPA 1 4/18/95 5.70 i BS06 USEPA 1 4/18/95 0.020J BS07 USEPA 1 4/18/96 0.037J CP03* USEPA 1 11/11/94 ND(0.066J) [ND(0.067J)] i CP03* USEPA 1 4/18/95 ND(0.067J) DB03* USEPA 1 4/19/95 3.40 DB04* USEPA 1 4/19/95 0.180 DB06* USEPA 1 4/19/95 0.033J DB07* USEPA 1 4/19/95 0.780 DB10* USEPA 1 4/19/95 0.780 [0.700] ES03* USEPA 1 11/9/94 0.1 10J ES04* USEPA 1 8/15/94 ND(0.420) ES05* USEPA 1 8/15/94 ND(0.340) ES05* USEPA 1 4/18/95 ND(0.067) ES06* USEPA 1 11/17/94 2.20J Esor USEPA 1 11/17/94 0.0406J ES08* USEPA 1 11/17/94 0.186J FP02* USEPA 1 11/10/94 ND(0.240J) GMGr USEPA 1 8/16/94 ND(0.067) GM02* USEPA 1 8/16/94 NO(0.067) GM03* USEPA 1 8/16/94 0.084J [0.100] i GM03* USEPA 1 11/10/94 ND(0.077J) GM04* USEPA 1 11/16/94 ND(0.070J) CMOS' USEPA 1 11/16/94 0.0078J GM06* USEPA 1 11/16/94 ND(0.068J) i USEPA 1 8/16/95 ND<0.067) GM07* CMOS' USEPA 1 8/16/95 ND(0.067) (See Notes on Page 4) f. SYR-T \31061137WB2 PageloM 17-Dec-96 TABLE 2

GENERAL ELECTRIC COMPANY PPTTSFIELD, MASSACHUSETTS i SUMMARY OF LOWER HOUSATONIC RIVER SEDIMENT PCS ANALYTICAL DATA SAMPLE DATA SAMPLING TOTAL PCB IDENTIFICATION SET DATE CONCENTRATION (pptn) GM15* USEPA1 __, 11/16/94 0.0078J I HB01 USEPA 1 11/10/94 0.062J HB01 USEPA 1 8/17/94 0.700 HB01 USEPA 1 8/9/95 0.120 HB02 USEPA 1 8/9/95 0.120 HB02 USEPA 1 8/17/94 0.750 HB02 USEPA 1 11/10/94 0.075J HB03 USEPA 1 8/17/94 11.90** HB04 USEPA 1 8/17/94 8.90** HB05 USEPA 1 8/17/94 NO(0.067) HB06 USEPA 1 8/8/95 0.01 8J HB06 USEPA 1 8/17/94 0.066J HB07 USEPA 1 8/17/94 0.140 HB08 USEPA 1 11/14/94 ND(0.450) HB09 USEPA 1 8/9/95 ND(0.067) HB09 USEPA 1 11/14/94 ND(0.067) HB10 USEPA 1 11/16/94 1.67J HB10 USEPA 1 8/9/95 0.240 I HB11 USEPA 1 8/9/95 0.250 HB11 USEPA 1 11/16/94 ND(0.068J) HB12 USEPA 1 11/16/94 0.067J I HB12 USEPA 1 8/8/95 0.077J HB13 USEPA 1 11/14/94 0.144 HB14 USEPA 1 11/14/94 ND(0.067) HB15 USEPA 1 11/11/94 0.070J [0.082J] HB16 USEPA 1 4/20/95 0.230 HB17 USEPA 1 4/20/95 0.290 n HB18 USEPA 1 4/20/95 0.061 L HB19 USEPA 1 4/20/95 0.110J HB20 USEPA 1 4/19/95 0.073 HB21 USEPA 1 4/19/95 ND(0.067) HB22 USEPA 1 4/19/95 0.047 HB23 USEPA 1 8/8/95 6.10 HB24 USEPA 1 8/9/95 0.130 HB3A USEPA 1 11/14/94 8.10 HB4A USEPA 1 11/14/94 4.30 HB8A USEPA 1 8/9/95 ND(0.067) HR01 USEPA 1 6/93 ND(NA) I HR02 USEPA 1 6/93 ND(NA) HR03 USEPA 1 6/93 ND(NA) HR04 USEPA 1 6/93 ND(0.041J) HR11 USEPA 1 6/93 ND(0.045J) HR12 USEPA 1 6/93 0.034J (See Notes on Page 4)

SYR-T \31061137WB2 P»g«2of4 17-Dec-96 TABLE 2

GENERAL ELECTRIC COMPANY PITTSFIELD, MASSACHUSETTS i SUMMARY OF LOWER HOUSATONIC RIVER SEDIMENT PCS ANALYTICAL DATA SAMPLE DATA SAMPLING TOTAL PCB IDENTIFICATION SET DATE CONCENTRATION (ppm) HR13 USEPA 1 6/93 0.070J I HR14 USEPA 1 6/93 ND(0.310J) HR20 USEPA 1 6/93 ND(0.450J) HR23 USEPA 1 6/93 ND(0.045J) HR24* USEPA 1 6/93 0.740J HR25* USEPA 1 6/93 0.680J HR26* USEPA 1 6/93 0.210 HR27* USEPA 1 6/93 ND(0.100J) HR28 USEPA 1 6/93 0.242J HR29 USEPA 1 6/93 0.191J HR30 USEPA 1 6/93 0.790J HR44 USEPA 6/93 0.066J HR45 USEPA 6/93 0.681J HR46 USEPA 6/93 ND(0.043J) HR47 USEPA 6/93 ND(0.047J) HR48 USEPA 6/93 0.260J MF02* USEPA 4/19/95 0.290 MF03* USEPA 4/17/95 11.00 I MF2D* USEPA 4/17/95 0.240J RF01* USEPA 8/7/95 ND(0.072) RF06* USEPA 8/9/95 0.099 I soor USEPA 8/17/94 0.330 SD04* USEPA 1 8/1 1/94 0.820 SD05* USEPA 1 8/17/94 0.092 SD06* USEPA 1 8/17/94 1.78" SD06* USEPA 1 11/9/94 0.230J SD07* USEPA 1 8/8/95 1.120 SD08* USEPA 1 8/11/94 0.069J SD10* USEPA 1 8/8/95 0.750 SD11 USEPA 1 8/11/94 0.870J SD12* USEPA 1 11/9/94 1.50J SD13* USEPA 1 11/9/94 17.0J SD13* USEPA 1 8/8/95 5.30 SD14* USEPA 1 11/9/94 0.037J SD19* USEPA 1 8/8/95 0.310J[0.110] SD19* USEPA 1 4/19/95 0.111 SD20* USEPA 1 4/19/95 0.071 SD20* USEPA 1 8/8/95 0.890 I SD21" USEPA 1 8/9/95 5.40 [5.40] SD24 USEPA 1 8/15/95 18.2J SD31* USEPA 1 8/15/95 0.830 i SD32 USEPA 1 8/15/95 0.205 SD33 USEPA 1 8/15/95 4.20 (See Notes on Page 4)

r-.'.

SYR-T \31061137WB2 Pag>3oT4 17-OC-96 TABLE 2

GENERAL ELECTRIC COMPANY PfTTSFIELD, MASSACHUSETTS

SUMMARY OF LOWER HOUSATONIC RIVER SEDIMENT PCB ANALYTICAL DATA

SAMPLE DATA SAMPLING TOTAL PCB IDENTIFICATION SET DATE CONCENTRATION (ppm) SD34 USEPA 1 5/1 5/95 0.310 I SD35 USEPA 1 5/15/95 0.310 S036 USEPA 1 8/16/95 0.130 SD37 USEPA 1 8/16/95 ND(0.067) SD3S USEPA 1 8/15/95 0.560 SP04* USEPA 1 4/20/95 ND(0.340) [ND(0.058)] nor USEPA 1 4/19/95 0.027J [ND(0.066)] F TI02* USEPA 1 8/10/94 ND(0.068) WP04* USEPA 1 11/10/94 ND(0.067J) [ND(0.066J)] WP08* USEPA 1 11/15/94 ND(0.067) WP09' USEPA 1 11/15/94 ND(0.067) r A&B (Composite) CDEP-1 1/18/95 ND(0.010) C&D (Composite) CDEP-1 1/18/95 ND(0.010) TPA-1 CDEP-2 4/26/94 ND(0.01) TPA-2 CDEP-2 4/26/94 ND(0.01) TPA-3 CDEP-2 4/26/94 ND(0.01) TPA-4 CDEP-2 4/26/94 ND(0.01) TPA-5 CDEP-2 4/26/94 ND(0.01) TPA-6 CDEP-2 4/26/94 ND(0.01) TPA-7* CDEP-2 4/26/94 ND(0.01) P1-P7 CDEP-3 12/15/92 ND(0.1) P8-P12 CDEP-3 12/21/92 ND(0.1) Station 1 CDEP-4 5/18/92*** 0.017 Station J CDEP-4 5/18/92*** 0.19 Station Q CDEP-4 5/18/92*** 0.084 A (Composite) CDEP-5 3/25/92 ND(0.010) B (Composite) CDEP-5 3/25/92 ND(0.010) 87-0418 CDEP-6 4/20/87 ND(O.OS) 1-7 (Composite) CDEP-7 3/28/85 ND(1.0) 8 CDEP-7 3/28/85 ND(1.0) 9 CDEP-7 3/28/85 ND(I.O) 1A CDEP-8 10/12/82 1.8 2A CDEP-8 10/12/82 2.0 Station 1 CDEP-9 9/24/81 0.014 Station 2 CDEP-9 11/23/81 0.161 Stations CDEP-9 9/24/81 0.048 Station 4 CDEP-9 9/24/81 0.059

Notes: 1. Refer to Figure 1 for illustration of sampling locations. 2. ND - Not Detected 3. NA - Not Available 4. J - Estimated concentration or detection limit. 5. [ ]- Duplicate Sample 6. '( )-Detection Limit 7 * - Sampling location not provided by USEPA or CDEP and not indicated on Figure 1. 8. ** - Secondary dilution factor used to obtain analytical results 9. ***-Extracted date 10. USEPA Data Set obtained through the United States Environmental Protection Agency - Region I, Boston, MA. CDEP Data Set obtained through the Connecticut Department of Environmental Protection, Hartford, CT. 11. Aroclor-specific PCB concentration information is available for USEPA data in Attachment 1 and for Data Set CDEP-2 in Attachment 2. SYR-TO1061137WB2 Pag»4o»4 17-D8C-96 I i I

F C

Figures

BLASLAND. BOUCK & LEE. INC. I engineers & scientists r'i fe a

I I li f. '1«% Derby Dan ^^JtS^i *L- wvn*r xj*

Stratford

mMm>m

LEGEND:

• TPA-2 = Sediment sampling location.

NOTES: 1. Sampling locations are approximate.

2. Sampling locations are plotted based upon information provided by the United States Environmental Protection Agency and the Connecticut Department of Environmental Protection.

3. Base Map was scanned from USGS mapping. Source: USGS Quads. New Haven Co., and Fairfield Co. (South Half) Conn., 1980.

4. The "Lower Housatonic River" is defined as the Housatonic River from its mouth at Long Island Sound North to Derby, CT.

APPROXIMATE SCALE: 1 = 8000'

GENERAL ELECTRIC COMPANY Lower Housatonic River PITTSFIELD, MASSACHUSETTS

Area Enlargement LOWER HOUSATONIC RIVER SCALE IN MILES SEDIMENT SAMPLING LOCATIONS

FIGURE FrMt, C.R., Surtmey, & L Kulp, K.P., ind Fmttte, C.G.. Po(ychor1r»t»d Bphonyti In Hamtonlc River Sediments In MawchuHtti ind CanwcDcut: D«tormlnitk3n, DtaWbulton. md Tnntport: BUWki BOO (Conmcdojl Agricultural BLASLAND. BOUCK & LEE. INC. 1»M (YltOM-OJH Exptrtnunt Station; Dsctmbur ia«Z). engineer! ft tolentlttt 1 I

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Attachments

BLASLAND, BOUCK & LEE, INC. I engineer] & 5 c / e n f / s f s

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. Attachment1 I Data Set-USEPA-1 (Lower Housatonlc River Sediment Sampling Information Provided by the United States • Environmental Protection Agency • Region 1, Boston, MA - August 2,1999)

BLASIAND, BOUCK & LEE, INC. englnoors ft lolentliti

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\ UNITED STATES ENVIRONMENTAL PROTECTION AGENCY 8 REGION I f JOHN F.KENNEDY FEDERAL BUILDING BOSTON, MASSACHUSETTS 02203-0001 e August 2, 1996 Mr. Russell Houck, Project Engineer I Blasland, Bouck & Lee, Inc. 6723 Towpath Road P.O. Box 66 Syracuse, NY 13214-0066

Re: Raymark Industries, Inc. Superfund Site; Stratford, CT Housatonic River PCB Data

Dear Mr. Houck:

Please find enclosed the available information you requested in your June 20, 1996 letter regarding the subject PCB data which was collected as part of EPA investigations into contamination from the Raymark Site.

The enclosed PCB data represents sediment sampling conducted within and along the lower Housatonic River during June 1993 by I EPA Region I personnel, and from August 1994 - August 1995 by EPA's contractor, Halliburton NUS. The enclosed map shows the location and corresponding sediment sample identification number I which relates to the enclosed PCB-CLP data. Furthermore, note that all of the analytical work was performed by Compuchem Environmental Corporation on the 1994 and 1995 sediment samples, and that all the analytical work for the June 1993 samples was performed by RECRA Environmental Incorporated. Finally, due to the limited nature of your request, there is no costs associated with the copying or preparation of the enclosed response.

If you have any questions on the enclosed information, please do not hesitate to call me at (617) 573-5786. y Sincerely, i Michael Jasinski Raymark Team Leader i Enclosure cc: Michael Hill, Remedial Project Manager