march 8, 2002 mr. dean tagliaferro ms. j. lyn cutler us

March 8, 2002

Mr. Dean TagliaferroUS Environmental Protection Agencyc/o Roy Weston, Inc.One Lyman StreetPittsfield, MA 01201

Ms. J. Lyn CutlerDepartment of Environmental Protection436 Dwight StreetSpringfield, MA 01103

Re: Upper !/2-Mile Reach of Housatonic River Removal Action (GECD800)Monthly Report - February 2002

Dear Mr. Tagliaferro and Ms. Cutler:

In accordance with the approved Removal Action Work Plan - Upper 1A Mile Reach ofHousatonic River, enclosed please find the February 2002 Monthly Report.

Please call me with any questions.

Yours truly,

Andrew T. Silfer, P.E.Senior Technical Manager

ATS/dmnEnclosures

cc: J. R. Bieke. Esquire. Shea & GardnerM. T. Carroll, GER. Goff, ACEBL Howell, EP/fH. Inglis, EPAD. Jamros, WestonJ. H. Maxymillian TechnologiesT. B. McKinsey, BBLR. McLaren, Esquire, GES. Messur, BBLK. C. Mitkevicius, USAGET. O'Brien, MA EOEAB. Olson, EPAS. Steenstrup, DEPA. Weinberg, DEPPublic Information Repositories

Vjvi

V:\GE_Housatonic_Upper_Half_Mile\Correspondence\15321550.doc

Upper 1/2 -Mile Reach Removal Action Monthly Progress Report: February 2002

Page 1

1.0 Overview:

During February 2002, General Electric Company (GE) and its contractor Maxymillian Technologies Incorporated (MTI) continued work on the Upper '/2 Mile Reach Removal Action. The primary work included completing final bank and river restoration activities for Cell Jl and completing removal work tasks and initiating restoration work tasks for Cell J2.

Weekly status meetings were held on February 4, 11, 20, and 25, 2002.

2.0 Chronological description of the tasks performed:

Refer to the figure (Exhibit A) referenced in Section 4.0 and attached to this report for an orientation of the sheetpile cells and their respective locations. Cell Jl was divided into upstream and downstream areas separated by a sewer siphon pipeline crossing at mid-cell. Cell J2 is immediately downstream of Cell Jl.

Restoration activities for the Cell Jl riverbed were continued from January and completed during the first week of February. For the river restoration, a geotextile layer was installed over the bottom of the excavation area. The isolation sand layer was then placed over the geotextile fabric to depth ranges of 3 to 6 feet with a nominal depth of 4 feet. Following placement of the isolation sand layer, another layer of geotextile and a layer of geogrid were installed. The stone armor layer consisting of 12 inches of rip-rap was then installed on top of the geogrid. To complete the river restoration, the northern half of the vortex rock weir was installed and five habitat enhancement boulders were placed within the cell (with oversight by the Massachusetts Executive Office of Environment Affairs [EOEA]). Additional rip-rap was placed along the centerline sheetpile wall between Cells II and Jl to match the elevation of the restored armor layers in the two cells.

During the second week of February, restoration activities were completed for the Cell Jl bank area. Bank restoration activities included placing rip-rap at the toe-of-the-bank to the design elevation and at 1:1 bank slope areas. Above the rip-rap, the excavation areas were backfilled with soil and compacted. A 6-inch layer of topsoil was placed over the backfill, followed by placement of grass seed and erosion control mats. As part of the final Cell Jl bank restoration, GE restored two downstream swales (#8 and #9) in accordance with Work Plan specifications by excavating the swales, placing geotextile liner over the liner on the bottom of the swales, and then placing 12-inch rip-rap over the geotextile liner within the swale. With EPA and EOEA approval, two additional upstream swales (#6 and #7) were restored in a similar manner to the adjacent restored bank area (e.g., topsoil, grass seed, erosion control mats) since the pipes that previously discharged to these swales have been plugged and abandoned.

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Page 2

Additional activities were performed in conjunction with river restoration activities, including completing the installation of the DNAPL observation well located on the outside face of the Waterloo source control barrier wall (i.e., river side) in the upstream Cell Jl riverbed. This installation included placement of a screened inner well and surrounding stone/sand pack within the outer casing of the well. Restoration activities were also completed for the Cell Jl sewer crossing, including injection grouting below the sewer crossing. Riverbed restoration activities were completed by placing a 12-inch layer of rip-rap over the sewer crossing as part of the armor cap. Following completion of a post-restoration final survey for Cell Jl, the dewatering pumps were removed and the cell was allowed to fill with water. The cutoff wall sheetpiles were removed from the river, cleaned at the top of the bank, and stockpiled.

During the third week of February, removal work tasks were continued (from December 2001) for Cell J2. During sediment removal activities, small droplets of NAPL and a sheen were observed on February 19. 2001, near the downstream cutoff sheetpile wall in Cell J2. On the same date, GE verbally reported this observation to EPA, MDEP, and the NRC (the NRC issued Tracking Number 594429). In response to this observation, oil-absorbent pads were placed at the pump intake for the water handling system that transferred the water to GE's on-site water treatment system. At the request of EPA and the U.S. Army Corps of Engineers, an additional 1-foot-deep excavation was completed over an approximately 20' x 40' area in Cell J2 to address a potential NAPL-impacted area. With EPA approval and oversight, approximately 25 cubic yards (cy) of sediment were removed from the Cell J2 affected area. No NAPL was observed during excavation activities or at the limits of removal following excavation activities. Excavated sediment from the Cell J2 affected area was transported to the TSCA stockpile at Bldg. 33X. Following excavation activities, a survey was performed to record the Cell J2 affected removal area in addition to the Work Plan removal limits.

During the fourth week of February, restoration work tasks were initiated in Cell J2. After removal activities were complete, restoration efforts began in the upstream river portion of Cell J2. Restoration included first placing a geotextile layer over the bottom of the excavation area. The isolation sand layer was then placed over the geotextile fabric (12 to 24 inches in depth). Following placement of the isolation sand layer, another layer of geotextile and a layer of geogrid were installed. The stone armor layer was then installed, placing a 12-inch layer of rip-rap on top of the geogrid. This process was continued downstream to complete the Cell J2 riverbed restoration.

Sampling/monitoring activities completed during the month of February included in-situ isolation layer sand sampling, sampling of the isolation layer backfill at the source, waste characterization sampling, air monitoring, and water column monitoring. Isolation layer sand samples were collected from the Cell Jl monitoring location and submitted for analysis of PCBs and total organic carbon (TOC). Isolation layer samples representing

V:\GE_Housatonic_Upper_Half_Mile\Reports and Presentations'^ebruary 2002 Progress Report\1522155Q.doc


Page 3

the 1-year monitoring event were collected from the Cell G3 monitoring location and submitted for analysis of TOC and PCBs. In addition, isolation layer backfill samples were collected from the backfill source location and submitted for PCB, TOC, and gradation analysis. Waste characterization samples were collected from 3 drums and submitted for analysis of PCBs. Waste characterization samples were also collected from DNAPL-impacted sediment removed from Cell Jl and stockpiled in Bldgs 65.

Air monitoring for particulate matter was conducted on a daily basis during February. The monthly PCB air monitoring event was conducted on February 15 and 16, 2002. Water column [PCB and total suspended solids (TSS)] monitoring was also continued during removal activities in the month of February.

During the month of February, GE Buildings 33X and 33-north were used as temporary storage facilities for Toxic Substances Control Act (TSCA) material and non-TSCA material, respectively, prior to final disposition at the appropriate On-Plant Consolidation Area (OPCA). In addition. Building 65 was used as temporary storage area for DNAPL-impacted material removed from Cell Jl.

3.0 Sampling/test results received:

Table 1 presents Cells Gl and G2 isolation layer TOC sample results for the 1-year isolation layer monitoring event for these cells.

Table 2 presents baseline PCB and TOC sample results from the Cell Jl isolation layer.

Tables 3A and 3B present the daily water column monitoring results for turbidity and the results of the water column samples collected for TSS and PCB analysis.

Table 4 presents isolation sand backfill PCB and TOC results for samples collected at the source (Bushika Sand and Gravel).

Table 5 presents general backfill PCB results for samples collected at the source (Dalton Hardwood/Brown's Pit).

Table 6 presents disposal characterization PCB sample results for unknown drums.

Table 7 presents the results of the February air monitoring for particulate matter.

Table 8 presents ambient air monitoring results for PCBs for monitoring event conducted on February 15 and 16, 2002.

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Page 4

4.0 Diagrams associated with the tasks performed:

A figure presented as Exhibit A shows the location and the progress of work for Cells H, I, and J along the Upper !/2 Mile Reach and is attached to this report for reference.

A summary chart (Exhibit B) has been developed to assist in tracking the analytical and physical testing requirements of the various sources of backfill (e.g., isolation material, soil back fill, riprap rock. etc.). Exhibit B includes the source, type and quantity of backfill materials used, information for the analytical and physical testing required by the Work Plan, and the source backfill sampling that has been performed to date.

5.0 Identification of reports received and prepared:

During the month of February, meeting summaries from the weekly project status meetings were submitted. Also, for work completed in January 2002, the monthly reports required by the Consent Decree and the Upper !/2-Mile Reach Removal Action Work Plan were both submitted. In addition, during February, GE submitted the following documents:

• Analytical sample results for PCBs from isolation layer sand (Submittal #27A); • Analytical sample results for PCBs from general backfill (Submittal #28); • Analytical sample results for PCBs, TOC, and gradation analysis from isolation layer

sand (Submittal #29); • Letter regarding Revised Estimated Project Timetable for Upper 'h Mile Reach, dated

February 7, 2002; • Cell Jl DNAPL observation well cross-section; and • Cells I3/J3 sheetpile calculations and sheetpile inventory from MTI.

6.0 Photo documentation of activities performed:

• See attached Figure 1.

7.0 Brief description of work to be performed in March 2002:

For the next reporting period, the following activities are anticipated to be performed:

• Complete installation of aquatic habitat enhancement boulders in Cell J2.

• Complete bank restoration activities for Cell J2.

• Perform Cell J2 final restoration survev.

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PageS

• Initiate sediment and bank soil removal and restoration activities for Cell 12.

• Begin installation of sheetpiles for Cells I3/J3.

• Following response from EPA, install monitoring wells associated with Cell Jl Waterloo source control barrier wall.

• Complete Cell Jl non-removal bank area restoration.

• Complete off-site disposal of Cell Jl DNAPL material stockpiled at the Building 65 stockpile area.

• Maintain temporary stockpiles of material in Buildings 33-north, 33X, and 65 (non-TSCA, TSCA, and DNAPL-impacted material, respectively); and

• Continue to conduct air monitoring and water column monitoring associated with response activities for the Upper '/2-Mile Reach.

8.0 Attachments to this report:

Table 1 - Cells Gl and G2 1-year isolation layer monitoring TOC sample results. Table 2 - Cell Jl baseline isolation layer PCB and TOC sample results. Table 3A - Daily water column monitoring turbidity results. Table 3B- Water column samples for TSS and PCB analyses. Table 4 - Backfill isolation layer sand PCB and TOC results for samples collected at the source (Bushika Sand and Gravel). Table 5 - General backfill PCB results for samples collected at the source (Dalton Hardwood/Brown's Pit). Table 6 - Disposal characterization PCB sample results for unknown drums. Table 7 - Results of the February ambient air monitoring for particulate matter. Table 8 - Ambient air monitoring results for PCBs for event conducted in February. Exhibit A - Figure showing the progress of work within the Upper '/z-Mile Reach Exhibit B - Backfill quantity and sample summary chart. Figure 1 - Photo documentation

V:\GE_Housatonic_Upper_Half_Mile\Reports and PresentationsvFebruary :002 Proyress Report\1522i550.doc

PRELIMINARY ANALYTICAL DATA TABLE 1 SUBJECT TO VERIFICATION

GENERAL ELECTRIC COMPANY PI ITSFIELD, MASSACHUSETTS

IIOUSATONIC RIVER UPPER 1/2 MILE REACH CELL Gl AND CT.LL C,2 ISOLATION LAYER CAP SAMPLING

DATA RECEIVED DURING FEBRUARY 2002

(Results are presented in dry weight parts per million, ppm)

Sample ID: CAP-MON-1-2A CAP-MON I-2B CAP-MON-1-2C ( AP-MON-2-2A CAP-MON-2-2B CAP-MON-2-2C CAP-MON-3-2A CAP-MON-3-2B CAP-MON-3-2C Sample DepthlFeet): 0-0.6 0-0.7 0-0.6 0-2 0-2.S 0-1.7 0-1.5 0-1 0-0.9

Parameter Date Collected: 01/22/02 01/22/02 01/22/02 01/22/02 01/22/02 01/22/02 01/22/02 01/22/02 01/22/02 Total Organic Carbon TOC - Replicate 1 767 2920 1420 884 1 1 70 [ 1 1 00] 631 1150 1 1 1 0 1500 TOC - Replicate 2 682 1260 1260 582 1410 [958] 797 927 1370 827 TOC - Replicate 3 659 1350 895 899 840 [676] 967 1 1 1 0 1070 657 TOC - Replicate 4 NA NA NA NA 1040|NA] NA NA 1530 1750 TOC - Average 703 1850 1190 788 1 120 [910] 79N 1060 1270 1180 TOC - % RSD 8.10 505 22.7 22.7 21 6 [23. 5] 21 ( i I I I 173 44.4

Notes: 1. Samples were collected by Blasland, Bouck & Lee, Inc., and were submitted to Northeast Analytical

Services, Inc. for analysis of total organic carbon (TOC). 2. % RSD - Percent relative standard deviation 3. Duplicate sample results are presented in brackets 4. NA - Not Analyzed - TOC Replicate 4 is only analyzed and reported by laboratory

when the % RSD of Replicate I thru Replicate 3 is greater than 25%

\A GE Housatonic Upper Half Mile\Reports and PresenlaIions\Februaiy 2002 Progress ReporIM 532 1550

TABLE 2 PRELIMINARY ANALYTICAL DATA

SUBJECT TO VERIFICATION

GENERAL ELECTRIC COMPANY PI ITSFIE1.I), MASSACHUSETTS

HOUSATONIC K1VKR UPPER 1/2 MILE REACH CELL Jl ISOLATION LAYER CAP SAMPLING


(Results arc preseiili'd in dry weight parts per million, ppm)

Sample ID: Sample Depth(inches):

Parameter Date Collected: PCBs Aroclor-1016 •\roclor-l22l \roclor-l232 \roclor- l242 \ roclor- l248 Uoclor-1254 Aroclor-1260 fotal PCBs Total Organic Carbon fOC-Repliai te 1 I'OC - Replicate 2 rOC - Replicate 3 1'OC - Replicate 4 fOC - Average TOG - % RSI)

CAP-MON-6 0-14

01/3(1/02

NS NS NS NS NS NS NS NS

7420 8660 6920 NA

7670 11 7

CAP-MON-6 2-4

01 /JO/02

ND(0.0610)|ND(0.0586)] ND(0.061(»|ND(00586)] ND(0.06K»[N»(00586)]NIX0.06I (» |NIXO .0586)j ND(006IO)|ND(0.0586)] ND(0 06101 [NI1(0 0586)| ND(0 0610) |ND(0 0586)| ND(0 0610) [ND(0 0586)1

7640 [7 190] 9370 [11600] 9030 [8580]

NA 8680(9120] 10.6 |24.6]

CAP-MON-6 4-6

01/30/02

ND(00605) ND(00605) ND(0 0605) N0(0 0605) ND(0.0605) ND(00605) Nl)(00605) ND(00605)

12600 11700 12300 NA

12200 373

CAP-MON-6 6-8

01/30/02

ND(0.06I6) ND(006I6) ND(006I6) NI)(00616) N 1X0 06 16) N I X 0 0 6 I 6 ) N I X 0 0 6 I 6 ) ND(0.06I6)

2140 7400 8550 6010 6030 46.3

CAP-MON-6A 0-12

02/05/02


11000 8900 10000 NA

10000 11

CAP-MON-6U 0-12

02/05/02


9600 9300

1 3000 NA

11000 18

Notes: 1. Samples were collected by Blasland, Bouck & Lee, Inc., and were submitted to Northeast Analytical

Services, Inc. for analysis of PCBs and tot;il organic carbon (TOC). 2. % RSD - Percent relative standard deviation. 3. Duplicate sample results are presented in brackets. 4 ND - Analyte was not detected The value in parentheses is the associated detection l imi t 5 NS - Not Sampled - Parameter was not requested on sample chain of custody form 6 NA - Not .Analyzed - TOC Replicate 4 is only analyzed and reported by laboratory

when the % RSD of Replicate I thru Replicate 3 is greater than 25%.

WGE Housatonic Upper Half Mile\Reports and PresentationsVFebruary 2002 Progress ReportM 5321550 Page 1 of 1 3/8/02

_ _

__

_

Location

Upstream ol Newell St. Bridge Downstream of Lyinaii St. Bridge Upstream of Newell St. Bridge Downstream of Lyman St. Bridge Upstream ol Newell St. Bridge Downstream of Lyman St. Bridge Upstream ol Newell St. Bridge Downstream of Lyman St. Budge Upstream ol Newell St Bridge Downstream of Lyman St. Bridge Upstream o! Newell Si. Bridge Downstream of Lyman St. Bridge Upstream of Newell St. Bridge Downstream of Lyman St. Bridge Upstream of Newell St. Bridge Downstream of Lyman St. Bridge Upstream of Newell St. Bridge Downstream of Lyman St. Bridge Upstream of Newell St. Bridge Downstream of Lyman St. Bridge Upstream ol' Newell St. Bridge Downstream of Lyman St. Bridge Upstream of Newell St. Bridge Downstream of Lyman St. Bridge Upstream of Newell St. Bridge Downstream of Lyman St. Bridge Upstream ol Newel! St. Bridge Downstream of Lyman St. Bridge Upstream of Newell St. Bridge Downstream of Lyman St. Bridge Upstream of Newell St. Bridge Downstream of Lyman St. Bridge Upstream ol Newell St. Bridge Downstream of Lyman St. Bridge Jpstream ol Newell St. Bridge Downstream of Lyman St. Bridge .Jpstream of Newell St. Bridge Downstream of Lyman St. Bridge

Date

02/01/2002 02/01/2002 02/04/2002 02/04/2002 02/05/2002 02/05/2002 02/06/2002 02/06/2002 02/07/2002 02/07/2002 02/08/2002 02/08/2002 02/11/2002 02/11/2002 02/12/2002 02/12/2002 02/13/2002 02/13/2002 02/14/2002 02/14/2002 02/15/2002 02/15/2002 02/19/2002 02/19/2002 02/20/2002 02/20/2002 02/21/2002 02/21/2002 02/22/2002 02/22/2002 02/25/2002 02/25/2002 02/26/2002 02/26/2002 02/27/2002 02/27/2002 02/28/2002 02/28/2002

SI lf,IK( I TO VEKIHC.A'I ION TABLE3A

GENERAL ELECTRIC COMPANY 1'ITTSKIELl), MASSACHUSETTS

FEBRUARY 2p02

UPPER 1/2 MILE REACH REMOVAL ACTION IIOUSA IONIC UIVER PCB/I SSH URUIim Y MONITORING DURING CONSTRUCTION

Water Water Estimated Turbidity (ntu) Sample ID Total l-'iltercd TSS

Depth Temp. Flow 16 Daily PCB Concentration I'CB Concentration

(ft) (°C) (cfs) High Low Composite (ue/i) (ug/l) (mg/1) 1.9 1 23 3 13 — —

63 :::3.0 1 22 3 21.7 1 5 352

——

2.8 1 5 -) T _ _

—1.7 0 NS NS NS — —— 41

2.8 0 NS NS NS ::: 1.7 0 NS NS NS 36 _ _ :: :;;2.8 0 NS NS NS 1.7 4 NS NS NS —

36 2.8 4 NS NS NS 1.8 5 NS NS NS —

40 _2.8 5 NS NS NS :: _ 3.1 4 27 18 26 —

152 4.1 4 45 23 34 ::: ::: 2.4 0 NS NS NS —

99 3.4 0 NS NS NS ::: ::: :::1.9 0 63 NS NS NS —i :::3.0 0 NS NS NS 1.9 0 5 4 5 HR-2-14-02-U1 NR NR NR 43 2.8 0 5 4 4 11R-2-1 4-02-D 1 NR NR NR 1.5 1 6 3 3 — — ...42 2.6 1 14 3 6 1 5 6 13 3 6 — — — 37 2 ::: 2.5 6 5 3 1.5 10 3 2 2 — — ... ...40 2.5 10 6 2 3 2.2 12 492 3.3 12 12 6 8 ::: 2.5 8 9 3 5 —107 3.5 8 10 3 6 ::: 1.8 9 4 3 ... ... ...63 2.9 9 6 3 5

t1.8 10 5 3 I1R-2-26-02-U1 NR NR NR 65 2.9 10 4 2 3 HR-2-26-02-DI NR NR NR

71.9 :> 5 483 3.0 5 5 3 4 2.0 4 NS NS NS 74 3.0 4 5 3 4 ... __

WGE Housatonic Upper Half Mile\Reports and Presenla!ions\February 2002 Progress ;*eport\15321550 Page 1 of ?

SI ItJEC T TO VERIFICATION FABLE 3A

GENERAL ELECTRIC COMPANY PITTSFTELI), MASSACHUSETTS

FEBRUARY 2002

UPPER 1/2 M I L E REACH REMOVAL ACTION IIOUSATONIC RIVI K PCB/TSS/TIIRBIDITY MONITORING DURING CONSTRUCTION

Noles: 1. PCB and TSS samples were collected by Blasland, Bouck & Lee, Inc. anil analyzed by Northeast Analytical, Inc. or on 0/27/00 C'l'&E F.nvironmuilal Services Inc. 2. Water depth taken at sampling point (i.e. middle of river). 3. f t -Fee t 4. °C - decrees Celsius 5. c f s -cu lnc feet per second 6. nlu - nephclometric tur l . id i ty units 7. —- No data obtained 8. ND(0.25) - Compound was analyzed for but not detected at the quanl i ta l i im l imi t indicated in parentheses 9. NR - Nut yet reported 10. ug/l - nucrograms per l i ier 11. nig/I - milligrams per l i te r 12. | | - Duplicate sample result 13. Turbidity Aciion Level - Turbidity downstream £ Turbidity upstream + 50 ntu 14. PCB Aciion Level = I'C Us downstream < PCBs upstream 5 ug/l 15. NS - Not sampled due to frozen river conditions or high flow. 16. Flow data was obtained from the USGS Station 01197000 in Coltsville, MA at approximately midday. (Mow data is provisional and may be subject to revision).

WGE Housatonic Upper Half Mile\Repoi is and r'resentalions\February 2002 Progress Keportvl 5331Sin1 Page ? oi:'

--

PRELIMINARY ANALYTICAL DATA SUBJECT TO VERIFICATION TABLE 3U

GENERAL ELECTRIC COMPANY PI ITSFIELD, MASSACHUSETTS

HOUSATONIC RIVER - UPPER 1/2 MILE REACH HOUSATONIC RIVER I'CB/TSS MONITORING DURING CONSTRUCTION


(Results are presented in parts per million, ppm)

Date Aroclor 1016, 1221, Sample ID Location Collected 1232,1242, & 1248 Aroclor 1254

HR-1-31 -02-UI Upstream of Newell St Bridge 1/31/02 ND(0 0000269) 00000977 Al HR-1-31 02-DI Downstream of Lynian St Bridge 1/31/02 ND(00000250) 0.0000829 Al

[ND(0 0000250)| [0.0000725 Al | I I K - I - 3 I 02-UI (FILTFRF.D) Upstream of Newell St Bridge 1/31/02 ND(0 0000298) ND(0 000029X1 I I R - I - 3 1 02-DKFH.TI RED) Downstream of Lynian St Bridge 1/31/02 Nl)(0.00(H)250) ND(0 0000250)

|ND(0. 0000255)| |ND(0.0000255)| HR-2-14 02-UI Upstream of Newell St Bridge 2/14/02 ND(00000250) ND(0 00002501 HR-2-14 02-DI Downstream of l.yman St Bridge 2/14/02 ND(0 0000250) ND(0 0000250) HR-2- l4-02-UI(FlLT[ RED) Upstream of Newell St. Bridge 2/14/02 NI)(0 0000250) ND(0.()000250) IIR-2-14 -02-ni(FILTI RED) Downstream of Lynian St Bridge 2/14/02 ND(0. 0000250) ND(0 0000250)

Notes: 1. Samples were collected by Blasland, Bouck &. Lee. Inc. and submitted to Northeast Analytical Services, Inc.

for analysis of filteied and unfiltered PCBs and Total Suspended Solids (TSS) 2 ND(0 10) - Analyte was not detected The value in parentheses is the associated detection l i m i t . 3 AF - Aroclor 1254 is being reported as the best Aroclor match The sample exhibits an altered PCB pattern 4 — - Not analyzed. 5. Blind duplicate results are presented in brackets

Aroclor 1260 00000288 0.0000390

|ND(0 0000250)] ND(0.000029X) ND(0.0000250)

fND(0.0000255)| ND(0. 0000250) ND(0. 0000250) ND(00000250) ND(00000250)

Total PCBs 0000127 0000122

[0 0000725] ND(0 0000298) ND(0 0000250)

[ND(0 0000255)| ND(0 0000250) ND(0 0000250) Nl)(0 0000250) N 0(00000250)

TSS 3 70 290

[380] -

1 70 1 20 -

WGE Housatonic Upper Half MileVReports and Presenlations\February 2002 Progress ReportM 5321550 Page 1 of 1



GENERAL ELECTRIC COMPANY PITTSFIELD, MASSACHUSETTS

HOUSATONIC RIVER UPPER 1/2 MILE REACH BUSHIKA SAND AND GRAVEL BACKFILL SAMPLING



Sample ID: Parameter Dale Collected: PCBs None Detected Tola! Organic Carbon TOC Replicate 1 TOC -Replicate 2 TOC -Replicate } TOC- Replicate 1

TOC - % RSD

BSG-PCB-I 02/19/02

ND(0 0565)

NS NS NS NS NS NS

BSG-PCB-2 02/19/02

ND(0.0572)

NS NS NS NS NS NS

BSG-TOC-1 02/19/02

NS

8810 7480 10900

NA 9070 192

BSG-TOC-2 02/19/02

NS

8430 10200 8000 NA

8870 130

BSG-TOC-3 02/19/02

NS

7800 9070 12100

NA 9650 228

BSC-TOC-4 02/19/02

NS

1 2500 7540 82X0 9210 939(1 23.5

BSG-HF-20 01/28/02

Nl)(0 0572) |ND(0 0564)]

NS NS NS NS NS NS

Notes: 1 Samples were collected by Blasland, Bouck & I.ee, Inc., and were submitted to Northeast Analytical

Services, Inc tor analysis of PCBs and total organic carbon (TOC) 2 % RSD - Percent relative standard deviation 3 NA - Not Analyzed - TOC Replicate 4 is only analyzed and reported by laboratory

when the % RSD of Replicate I thru Replicate 3 is greater than 25% 4 ND - Analyte was not detected. The number in parentheses is the associated detection l im i t . 5 NS - Not Sampled - Parameter was not requested on sample chain of custody form

WOE Housalonic Upper Half MileVReports and Presentations\February 2002 Progress Reports 5321550 Page 1 of 1 3/8/02



GENERAL ELECTRIC COMPANY 1MTTSFIELD, MASSACHUSETTS

HOUSATONIC RIVER UPPER 1/2 MILK REACH DALTON HARDWOOD/BROWN'S PIT - BACKFILL SOIL SAMPLING



Sample ID DH-BF-21

Dale Collected

1/28/02 Aroclor-1016 ND(0 0559)

Aroclor-1221 NIX00559)

Aroclor-1232 ND(00559)

Aroclor-1242 N0(00559)

Aroclor-1248 ND(0.05.i9)

Aroclor-1254 NI)(00559)

Atoclor-1260 N 0(00559)

Total PCBs ND(0 0559)

Notes 1. Samples were collected by Blasland, Bouck & I.ee, Inc., and were submitted to Noitheasl Analytical, Inc foi analysis of PCBs. 2. ND - Analyte was not detected. The number in parentheses is the associated detection limit.

VYGE Housatonic Upper Half MileVReports and Presentations\February 2002 Progress ReportM 5321550 Page 1 of 1 3/8/02


GENERAL ELECTRIC COMPANY PITTSFIEL1), MASSACHUSETTS

HOUSATONIC RIVER UPPER 1/2 MILE R E A C H UNKNOWN DRUM SAMPLING


(Results iirc presented in purls per million, ppm)

Date Aroclor-1016, -1221, Sample ID Collected -1232, -1242, -1248 Aroclor-1254 Aroclor-1260 Total PCBs

12X-649I2-J I -1 2/1 S/02 ND(0.0662) ND(00662) 1 4 2 1 4 2 12X-649I3-1I -1 2/1.1/02 NI)( I0 .3) 459 NDU0.3) 459 12X-35279-I 2/1 V02 N l ) ( l l .7 ) 385 N I X I I 7 ) 385

Moles: 1 Samples were collected by Blasland, Bouck & Lee, Inc., and were submitted to Northeast Ana ly t i ca l , Inc

for analysis of PCBs. 2 NO - Analyte was not detected The number in parentheses is the associated detection l i m i t

WGE Housatonic Upper Half Mile\Reports and Presentations\February 2002 Progress ReporIM 5321550 Page 1 of 1 3/8/02


GENERAL ELECTRIC COMPANY PITTSF1ELD, MASSACHUSETTS

HOI ISATONIC RIVEU - UPPER 1/2 MILE REACH AMBIENT AIR PARTK IILATK MATTER DATA RECEIVED DURING FEBRUARY 2002

Average Site BM-1 Average Pcrio<i Predominant

Date Sampler Locution Concentration (mg/mj) (Iloiirs:Min) Wind Direction

(mg/m3)

02/0 1 /021 AM 6 (south side of river) NA NA NA NA

02/04/02 AM-6 (south side nf river) 0012 0009 9 1 5 NNW,NNR, N

AM-6 (south side of river) 02/05/02 0012 0.009 13 15 WNW, NW

02/06/02 AM-6 (south side of river) 0,014 0.012 9 15 WNW

02/07/02 0035 0033 12:45 SSW AM 6 (south side of river)

02/08/02 AM-6 (south side of river) 0011 0.007 9 00 NW

02/11/02 AM-6 (south side of river) 0009 0009 1 0 1 5 N, NNW

02/12/02 AM-6 (south side of river) 0009 0010 9 - 1 5 SW

02/13/02 AM-6 (south side of river) 0012 0 008 730 2 WNW, NW

02/14/02 AM-6 (south side of river) 0010 0009 945 SW

02/15/02 AM-6 (south side of river) 0.013 0013 9 15 SW, SSW

02/1 8/02 ' AM-6 (south side of river) NA NA NA NA

02/19/02 AM-6 (south side of river) 0014 0.012 9:30 W

02/20/02 AM-6 (south side of river) 0.021 0.020 X 30 ESI

02/21/02' AM-6 (south side of river) NA NA NA NA

02/22/02' AM-6 (south side of river) NA NA NA NA

02/25/02' AM-6 (south side of river) 0017 0063 9:00 SSW

02/26/02 AM-6 (south side of river) 0.024 0023 9 30 s 02/2 7/02 ' AM-6 (south side of river) NA NA NA NA

02/28/02 AM-6 (south side of river) 0 009 0 002 9 15 WNW

Notification Level 0.120

BM-1 Background monitoring location west of Bldg 42. AM-6: Air monitoring location in the (il: parking lot located ofTof Newell Street ' Sampling was not performed due to precipitation/threat of precipitation 2 Sampling period was shortened due to precipitation/threat of precipitation

VYGE Housatonio Upper Half Mile\Reports and Presentations\February 2002 Progress ReportM 5321550 Page 1 of 1


GENERAL ELECTRIC COMPANY PM TSFIELD, MASSACHUSETTS

HOI ISATONIC RIVER - UPPER 1/2 MILE REACH AMBIENT AIR PCIi DATA RECEIVED DURING FEBRUARY 2(102

AM-5 BM-1 AM-S AM-6 AM-8 Date . J co-located AM-7 u»/m3

ug/m 3 ug/m3 ug/m3

ug/m 02/15-02/16/02 NA' O.H029 0.0032 00019 00038 0.0018 Notification Level 0.05 | 0 05 0.05 005 005 005

1 Sample was not analyzed This sample did not meet sample validity requirements Samplei did not run for the required 2 1 hour period due to

Notes: BM-1: Background monitoring location west of Bldg. 42 AM-5: Air monitoring location north bank, east of Bldy 63. AM-6 Air monitoring location south bank, noi ih edge of GE Newell St. parking aica AM-7: Air monitoring location north bank, south end of (IE Lyinan St. Parking Lot AM-8: Air monitoring location south bank, coiner of Hathaway and Sackelt Streets.

WGE Housatonic Upper Hatf Mile\Reports and Presentations\February 2002 Progress ReportM 5321550 Page 1 of 1 3/8/02

EXHIBIT B General ttectnc Company Revision Djte: March 1, 20U2 Pittsfield, Massacusetts

1/2-Mile Removal Action Backfill Tracking Loo

Frequency (Der cy

500

500

500

2000 2000 2000 2000

500

500

250

250 250

500

2000

2000

2000

2000

2000

SubmittalfiomMTI Submittal to EPA Sample No Date No Date Date 12 11/17/99 Letter 11/19/99 11/01/99

12C 03/30/00 Letter 04/20/00 03/24/00 12 11/17/99 Letter 11/19/99 11/02/99

12C 03/30/00 Letter 04/20/00 03/30/00

NA NA Letter 11/19/99 09/20/99

NA NA 7 12/01/99 11/19/99 NA NA Letter 04/20/00 03/29/00 NA NA Letter 11/19/99 09/20/99 NA NA Letter 11/19/99 09/20/99 NA NA Letter 11/19/99 09/20/99 NA NA 7 12/01/99 11/19/99 12A 01/03/00 Letter 01/06/00 12/28/99 12B 01/24/00 11 02/14/00 01/19/00 12D 05/08/00 13 05/19/00 05/02/00 12E 09/1 1/00 14 09/27/00 09/07/00 12F 09/29/00 17 10/04/00 09/26/00 12G 11/30/00 20 12/06/00 10/20/00 12H 03/08/01 21 03/14/01 03/05/01 121 06/19/01 24 08/24/01 06/15/01 12J 07/05/01 24 08/24/01 06/20/01 12L 01/03/02 27 01/24/02 12/27/01 12M 02/22/02 29 02/25/02 02/21/02 12A 01/03/00 Letter 01/06/00 12/28/99 12B 01/24/00 11 02/14/00 01/19/00 12D 05/08/00 13 05/19/00 05/02/00 12E 09/11/00 14 09/27/00 09/06/00 12F 09/29/00 17 10/04/00 09/26/00 12G 11/30/00 20 12/06/00 10/20/00 12H 03/08/01 21 03/14/01 03/05/01 121 06/19/01 24 08/24/01 06/12/01 12J 07/05/01 24 08/24/01 06/20/01 NA NA Letter 09/24/01 09/20/01 NA NA Letter 10/31/01 10/26/01

NA NA 26 12/14/01 11/14/01

NA NA 27 01/24/02 01/08/02 NA NA 29 2/25/02 2/19/02 NA NA 10 01/14/00 01/05/00 NA NA 11 02/14/00 02/02/00 NA NA 13A 06/28/00 06/02/00 NA NA 16A 10/04/00 09/26/00 NA NA 18A 10/05/00 09/28/00 NA NA 20A 01/09/01 12/05/00 NA NA 21A 04/04/01 03/19/01 NA NA 24 08/24/01 07/23/01 NA NA 26 12/14/01 11/14/01 NA NA 27A 2/25/02 11/26/01 NA NA 29 2/25/02 2/19/02 NA NA 10 01/14/00 01/05/00 NA NA 18A 10/05/00 09/28/00 NA NA 26 12/14/01 11/14/01 NA NA 10 01/14/00 01/05/00 NA NA 18A 10/05/00 09/28/00 NA NA 26 12/14/01 11/14/01 NA NA 10 01/14/00 01/05/00 NA NA 18A 10/05/00 09/28/00 NA NA 26 12/14/01 11/14/01 NA NA 10 01/14/00 01/05/00 NA NA 11 02/14/00 02/02/00 NA NA 18A 10/05/00 09/28/00 NA NA 26 12/14/01 11/14/01 15A 11/30/99 Letter 12/01/99 11/23/99 15B 10/04/00 19 10/11/00 09/28/00 18 01/04/00 Letter 01/06/00 12/29/99

4000 3394

2000 1082

Number o Samples

1 1 1 1

4

2 2 4 4 4 2 1 1 1 1 1 1 1 1 1 1 2 1 1 1 1 1 1 1 1 1 3 3

1

4 4 2 2 2 3 2 2 2 1 1 2 2 2 2 1 2 2 1 2 2 1 2 2 2 1 1 1 1

Material Isolation Layer , Pittsfield Sand & Gravel)

Isolation Layer Uuslnka Sand & Gravel)

Testing Required

Grain Size

TOC

RGBs

VOCs SVOCs Metals TPH

Grain Size

TOC

PCBs

VOCs

SVOCs

Metals

TPH

Grain Size

jrain Size

Quantity Approved Quantity for Placement Placed (cy)

6000 5272

Comments

Samples collected as part of off-site residential fill program

Samples collected as part of off-site residential fill program

S.OOOcy - e.OOOcy

Submittal 12J supplements 121. Supplement to 121 and 12J. Supplement to 121 and 12J. Revised sampling frequency interval from 500cy to 250cy 4,000cy 5,000cy 5,000cy - 6,000cy

4,000cy - 5,000cy S.OOOcy - 6,000cy

Sip-Rap (9-)

Sip-Rap (12")

Notes: Quantities placed include Cells A. B. C. D, DNAPL, E. F, G, H, 11, J1, and J2 NA = Not Applicable

V K3E Houiatonic UK

EXHIBIT B General Electric Company Revision Date: March 1, 2002 Pittsfield, Massacusetts

1/2-Mile Removal Action Backfill Tracking Log

Testing Frequency Submittal from MTI Submittal to EPA Material Required (per cy) No. Date No. Date

Soil Backfill/Granular Fill 13/13A 11/17& 11/18/99 8 12/01/99 Grain Size 2000 27 10/02/01 25 12/12/01

(Brown's Pit) NA NA 8A 12/15/99 NA NA 14 05/31/00 NA NA 22 03/14/01

PCBs 500 NA NA 24 08/24/01 NA NA 25 12/12/01 NA NA 28 2/25/02 NA NA 8A 12/15/99 VOCs 2000 NA NA 25 12/12/01 NA NA 8A 12/15/99 SVOCs 2000 NA NA 25 12/12/01 NA NA 8A 12/15/99

Metals 2000 NA NA 25 12/12/01 NA NA 8A 12/15/99 TPH 2000 NA NA 25 12/12/01

Topsoil TOG 500 11/14 11/16 & 11/17/99 9 1 2/1 5/99 (Woodmont) PH 500 11/14 11/16& 11/17/99 9 12/15/99

PCBs 500 NA NA 9 12/15/99

VOCs 2000 NA NA 9 12/15/99 SVOCs 2000 NA NA 9 12/15/99 Metals 2000 NA NA 9 12/15/99 TPH 2000 NA NA 9 12/15/99

Topsoil TOG 500 11A 05/09/0 1 23 05/15/01 Lahey's) PH 500 11A 05/09/01 23 05/15/01

PCBs 500 NA NA 23 05/15/01 VOCs 2000 NA NA 23 05/15/01 SVOCs 2000 NA NA 23 05/15/01 Metals 2000 NA NA 23 05/15/01 TPH 2000 NA NA 23 05/15/01

Notes: Granular Fill and Soil Backfill have been combined as the same material. Quantities placed include Cells A, B, C, D, DNAPL, E, F, G, H, 11, J1 and J2. NA = Not Applicable

Sample Date

11/16/99 09/25/01 12/08/99 05/18/00 02/28/01 07/23/01 11/14/01 11/26/01

7/21-7/28/99 11/14/01

7/21-7/28/99 11/14/01

7/21-7/28/99 11/14/01 12/01/99 11/14/01 11/08/99 11/08/99

12/08/99

08/24/99 08/24/99 08/24/99 12/08/99 04/30/01 04/30/01 04/11/01 04/11/01 04/11/01 04/11/01 04/11/01

Number of Samples

1 1 2 2 2 1 1 1 6 1 6 1 6 1 3 1 2 2

4

4 4 4 2 1 1 3 3 3 3 3

Quantity Approved for Placement

3000

500

500

Quantity Placed (cy)

2555

509

206

Comments

2,500cy-3,000cy

Samples Collected as part of Allendale School Project

"Samples collected as part of off-site residential fill program

« * * *

V\GE Housalonic Upper Half Miie\Reports and Piesenlations\February 2002 Progress I- i;pomi542155u Page 2 of ?

march 8, 2002 mr. dean tagliaferro ms. j. lyn cutler us

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