Transmitted via Overnight Courier Region I - New England Western … · 2020-04-22 · GE 159 Plastics Avenue Pittsfield, MA 01201 . USA . Transmitted via Overnight Courier . March

GE 159 Plastics Avenue Pittsfield, MA 01201 USA

Transmitted via Overnight Courier

March 9,2011

Mr. Dean Tagliaferro Mr. Michael Gorski U.S. Environmental Protection Agency Regional Director Region I - New England Western Regional Office 10 Lyman Street, Suite 2 Department of Environmental Protection Pittsfield, MA 01201 436 Dwight Street

Springfield, MA 01103

Re: GE-PittsfieldlHousatonic River Site Monthly Status Report Pursuant to Consent Decree for February 2011 (GECD900)

Dear Mr. Tagliaferro and Mr. Gorski:

Enclosed are copies of General Electric's (GE's) monthly progress report for February 2011 activities conducted by GE at the GE-Pittsfield/Housatonic River Site. This monthly repOJi is submitted pursuant to Paragraph 67 of the Consent Decree (CD) for this Site, which was entered by the U.S. District Court on October 27,2000.

The enclosed monthly repOJi includes not only the activities conducted by GE under the CD, but also other activities conducted by GE at the GE-Pittsfield/Housatonic River Site (as defined in the CD). The report is formatted to apply to the various areas of the Site as defined in the CD, and to provide for each area, the information specified in Paragraph 67 of the CD. The activities conducted specifically pursuant to or in connection with the CD are marked with an asterisk. GE is submitting a separate monthly repOJi to the Massachusetts Department of Environmental Protection (MDEP), with a copy to the United States Environmental Protection Agency (EPA), describing the activities conducted by GE at propeliies outside the CD Site pursuant to GE's November 2000 Administrative Consent Order from MDEP.

The enclosed monthly repOJi includes, where applicable, tables that list the samples collected during the subject month, summarize the analytical results received during that month from sampling or other testing activities, and summarize other groundwater monitoring and oil recovery information obtained during that month. Also, enclosed for each of you (and for Weston) is a CD-ROM that contains these same tables of the analytical data and monitoring information in electronic form.

Please call me if you have any questions.

Sincerely,

Richard W. Gates Remediation Project Manager

Enclosure

Corporate EllvlronlT'entol Programs

Mr. Dean Tagliaferro and Mr. Michael Gorski March 9, 2011

Page 2 of2

cc: Richard Fisher, EPA Robeti Cianciarulo, EPA (cover letter only) Tim Conway, EPA (cover letter only) Rose Howell, EPA (cover letter and CD-ROM of report) Holly Inglis, EPA (hard copy and CD-ROM ofreport) Susan Svirsky, EPA (Items 7, 15, and 20 only) R. Leitch, USACE (CD-ROM of report)

John Ziegler, MDEP (hard copy and CD-ROM ofrepOJi)

Eva Tor, MDEP (cover letter and CD-ROM ofrepOJi)

Karen Pelto, MDEP

Nancy E. Harper, MA AG

Susan Peterson, CT DEP

Field Supervisor, US FWS, DOl

Kenneth Finkelstein, Ph.D., NOAA (Items 13, 14, and 15 only)

Mayor James Rubetio, City of Pittsfield

William Hines, Director, Pittsfield Economic Development Authority

Linda Palmieri, Weston

Jack Yablonsky, Berkshire Gas (CD-ROM of report)

Richard Nasman, P.E., Berkshire Gas (cover letter only)

Michael Carroll GE (CD-ROM ofrepOJi)

Andrew Silfer, GE (cover letter only)

Rod McLaren, GE (CD-ROM of report)

James Nuss, ARCADIS

James Bieke, Goodwin Procter

Kevin Russell, Anchor QEA (narrative only)

Teresa Bowers, Gradient

Public Information Repositories (1 hard copy,S copies of CD-ROM)

GE Internal Repository (1 hard copy)

(WiD separate CD-ROM, except where noted)

G:IGEIGE]ittsfield_GenerallReports and PresentationslMonthly Reportsl20 11102-11 ILetterdoc

February 2011

MONTHLY STATUS REPORT

PURSUANT TO CONSENT DECREE

FOR

GE-PITTSFIELD/HOUSATONIC RIVER SITE

GENERAL ELECTRIC COMPANY

PITTSFIELD, MASSACHUSETTS

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2011\02-11\Background.doc

Background

The General Electric Company (GE), the United States Environmental Protection Agency (EPA), the Massachusetts Department of Environmental Protection (MDEP), and other governmental entities have entered into a Consent Decree (CD) for the GE-Pittsfield/Housatonic River Site, which was entered by the U.S. Court on October 27, 2000. In accordance with Paragraph 67 of the CD, GE is submitting this monthly report, prepared on GE’s behalf by ARCADIS (formerly Blasland, Bouck & Lee, Inc.), which summarizes the status of activities conducted by GE at the GE-Pittsfield/Housatonic River Site ("Site") (as defined in the CD).

This report covers activities in the areas listed below (as defined in the CD and/or the accompanying Statement of Work for Removal Actions Outside the River [SOW]). Only those areas that have had work activities for the month subject to reporting are included. The specific activities conducted pursuant to or in connection with the CD are noted with an asterisk.

General Activities (GECD900)

GE Plant Area (non-groundwater) 1. 20s, 30s, 40s Complexes (GECD120) 2. East Street Area 2 – South (GECD150) 3. East Street Area 2 – North (GECD140) 4. East Street Area 1 – North (GECD130) 5. Hill 78 and Building 71 Consolidation Areas (GECD210/220) 6. Hill 78 Area – Remainder (GECD160) 7. Unkamet Brook Area (GECD170)

Former Oxbow Areas (non-groundwater) 8. Former Oxbow Areas A & C (GECD410) 9. Lyman Street Area (GECD430) 10. Newell Street Area I (GECD440) 11. Newell Street Area II (GECD450) 12. Former Oxbow Areas J & K (GECD420)

Housatonic River 13. Upper ½-Mile Reach (GECD800) 14. 1½-Mile Reach (only for activities, if any, conducted by GE) (GECD820) 15. Rest of the River (GECD850)

Housatonic River Floodplain 16. Current Residential Properties Adjacent to 1½-Mile Reach (Actual/Potential Lawns)

(GECD710) 17. Non-Residential Properties Adjacent to 1½-Mile Reach (excluding banks)

(GECD720) 18. Current Residential Properties Downstream of Confluence (Actual/Potential Lawns)

(GECD730)

Other Areas 19. Allendale School Property (GECD500) 20. Silver Lake Area (GECD600)


Groundwater Management Areas (GMAs) 21. Plant Site 1 (GECD310) 22. Former Oxbows J & K (GECD320) 23. Plant Site 2 (GECD330) 24. Plant Site 3 (GECD340) 25. Former Oxbows A&C (GECD350)


GENERAL ACTIVITIES GE-PITTSFIELD/HOUSATONIC RIVER SITE

(GECD900)

FEBRUARY 2011

a. Activities Undertaken/Completed

b.

Continued GE-EPA electronic data exchanges for the Housatonic River Watershed.*

Sampling/Test Results Received

- Sample results were received for routine sampling conducted pursuant to GE’s NPDES Permit for the GE facility. Sampling records and results are provided in Attachment A to this report.

- NPDES Discharge Monitoring Reports (DMRs) for the period of January 1 through January 31, 2011, are provided in Attachment B to this report.

c. Work Plans/Reports/Documents Submitted

- Submitted to EPA and MDEP the 2011 revisions of the Stormwater Pollution Prevention Plan (SWPPP) in accordance with GE’s NPDES Permit.

- Submitted to EPA and MDEP the 2010 Baseline Monitoring Plan Final Summary Report.

- Submitted to EPA and MDEP a summary of 2010 BMP and SWPPP activities in accordance with GE’s NPDES Permit.

- Submitted to EPA and MDEP the 64G Groundwater Treatment Facility PCB Optimization Study Report in accordance with GE’s NPDES Permit.

- Submitted to MDEP revised draft sections of a license renewal application for GE’s Building 78 under the Resource Conservation and Recovery Act (RCRA).

d. Upcoming Scheduled and Anticipated Activities (next six weeks)

- Continue NPDES Permit-related sampling and monitoring activities.

- Attend public and Citizens Coordinating Council (CCC) meetings, as appropriate.

e. General Progress/Unresolved Issues/Potential Schedule Impacts

GE’s August 3, 2010 follow-up plan relating to the finding in October 2009 of residual oil in certain pipes located north of Building OP-2 is under EPA review.

f. Proposed/Approved Work Plan Modifications

None

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2011\02-11\2-11 CD Monthly Text Final.doc

ITEM 1

PLANT AREA

20s, 30s, 40s COMPLEXES (GECD120)

FEBRUARY 2011


- GE transferred the former 40s Complex to the Pittsfield Economic Development Authority (PEDA) on February 16, 2011.

- GE worked with PEDA on development of a draft Grant of Environmental Restriction and Easement (ERE) covering the portion of Woodlawn Avenue adjacent to the former 20s Complex, combined with the portion of that road within East Street Area 2-North.* This ERE is discussed further under Item 3 (East Street Area 2-North) below.

b. Sampling/Test Results Received

None


None


- Jointly with PEDA, submit a request to EPA and MDEP for an extension of the 5-year duration for retention of the temporary stockpile of crushed building demolition materials, as well as continuation of the structural embankments consisting of such materials as a temporary feature, in the former 40s Complex.*

- It is anticipated that PEDA will prepare draft amended EREs for the former 20s Complex and the former 30s Complex.*

- Activities relating to the draft ERE covering the portion of Woodlawn Avenue adjacent to the former 20s Complex, combined with the portion of that road within East Street Area 2-North, are discussed further under Item 3 (East Street Area 2-North).*


None


None


ITEM 2

PLANT AREA

EAST STREET AREA 2-SOUTH

(GECD150)

FEBRUARY 2011


- Collected and transferred approximately 3,426,846 gallons of water generated during remediation activities to Building 64G Groundwater Treatment Facility for treatment.*

- Conducted PCB sampling of decontamination solution generated from well activities, as indicated in Table 2-1.

- Continued water sampling as part of the NPDES Permit-related Optimization Study, as indicated in Table 2-1.

- Performed February 2011 dry weather flow inspection activities associated with Drainage Basin 005 under GE’s NPDES Permit.

- Provided comments to EPA regarding the sampling plan developed by the Massachusetts Department of Transportation (MassDOT) for its planned widening of East Street.


See attached tables.


None


Perform March 2011 dry weather flow inspection activities associated with Drainage Basins 005 and 006 under GE’s NPDES Permit.


f.

Remediation activities were suspended in December 2010, and shipments of excavated material stored in Building 65 were suspended in January 2011. These activities will resume in spring 2011.*

Proposed/Approved Work Plan Modifications

None


TABLE 2-1 DATA RECEIVED AND/OR SAMPLES COLLECTED DURING FEBRUARY 2011

EAST STREET AREA 2 - SOUTH GENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS

Sample Date Received by Project Name Field Sample ID Date Matrix Laboratory Analyses GE or ARCADIS

Decontamination Solution Generated from Well Activities E2699-1 2/10/11 Water SGS PCB 2/24/11 Optimization Study OPT-A-011811 1/18/11 Water Columbia TSS, TSS (f) 2/7/11 Optimization Study OPT-A-012611 1/26/11 Water Columbia TSS, TSS (f) 2/11/11 Optimization Study OPT-A-012611 1/26/11 Water SGS PCB 2/7/11 Optimization Study OPT-B-012611 1/26/11 Water SGS PCB 2/7/11 Optimization Study OPT-C-012611 1/26/11 Water SGS PCB 2/7/11 Optimization Study OPT-CO-012611 1/26/11 Water SGS PCB 2/7/11 Optimization Study OPT-D-011811 1/18/11 Water Columbia TSS, TSS (f) 2/7/11 Optimization Study OPT-D-012611 1/26/11 Water Columbia TSS, TSS (f) 2/11/11 Optimization Study OPT-D-012611 1/26/11 Water SGS PCB 2/7/11 Optimization Study OPT-DUP-38 (OPT-A-012611) 1/26/11 Water Columbia TSS 2/11/11 Optimization Study OPT-DUP-39 (OPT-A-012611) 1/26/11 Water Columbia TSS (f) 2/11/11 Optimization Study OPT-DUP-40 (OPT-CO-012611) 1/26/11 Water SGS PCB 2/7/11 Optimization Study OPT-IT-012611 1/26/11 Water SGS PCB 2/7/11

Notes: 1. The parent sample location associated with the field duplicate is presented in parenthesis. 2. (f) - Indicates filtered analysis requested.

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2011\02-11\Tracking Logs\ Tracking.xlsm - TABLE 2-1 1 of 1 3/9/2011

TABLE 2-2 PCB DATA RECEIVED DURING FEBRUARY 2011

DECONTAMINATION SOLUTION GENERATED FROM WELL ACTIVITIES EAST STREET AREA 2-SOUTH

GENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS (Results are presented in parts per million, ppm)

Sample ID Date

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

E2699-1 2/10/2011 ND(0.000067) 0.00025 ND(0.000067) 0.00025

Notes: 1. Sample was collected by Veolia ES Technical Solutions, L.L.C. and submitted to SGS

Environmental Services, Inc. for analysis of PCBs. 2. ND - Analyte was not detected. The number in parenthesis is the associated detection

limit.

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2011\02-11\Analytical Data Tables\ Tables.xlsx - 2-2 Page 1 of 1 3/9/2011

TABLE 2-3 DATA RECEIVED DURING FEBRUARY 2011

OPTIMIZATION STUDY EAST STREET AREA 2-SOUTH


Sample ID: Parameter Date Collected:

OPT-A-011811 01/18/11

OPT-A-012611 01/26/11

OPT-B-012611 01/26/11

OPT-C-012611 01/26/11

PCBs-Unfiltered Aroclor-1248 DR 0.00036 ND(0.0000095) ND(0.0000095) Aroclor-1254 DR ND(0.0000095) 0.00022 ND(0.0000095) Aroclor-1260 DR ND(0.0000095) ND(0.0000095) ND(0.0000095) Total PCBs DR 0.00036 0.00022 ND(0.000015) Inorganics-Unfiltered Total Suspended Solids 2.70 4.40 [4.40] NA NA Inorganics-Filtered Total Suspended Solids 2.10 3.60 [3.90] NA NA


1. Samples were collected by ARCADIS and submitted to Columbia Analytical Services, Inc. and SGS Environmental Services, Inc. for analysis of PCBs and total suspended solids (TSS).

2. NA Not Analyzed.3. ND Analyte was not detected. The number in parenthesis is the associated detection limit.4. DR Data received and reported in Table 2-4 of the January 2011 CD Monthly Report. 5. Only those constituents detected in one or more samples are summarized.6. Field duplicate sample results are presented in brackets.


OPTIMIZATION STUDY EAST STREET AREA 2-SOUTH

GENERAL ELECTRIC COMPANY -P ITTSFIELD, MASSACHUSETTS (Results are presented in parts per million, ppm)


OPT-CO-012611 01/26/11

OPT-D-011811 01/18/11

OPT-D-012611 01/26/11

OPT-IT-012611 01/26/11

PCBs-Unfiltered Aroclor-1248 0.00040 [0.00057] DR ND(0.0000094) 0.0032 Aroclor-1254 ND(0.0000095) [0.00082] DR ND(0.0000094) 0.012 Aroclor-1260 ND(0.0000095) [0.000084] DR ND(0.0000094) 0.0027 Total PCBs 0.00040 [0.00147] DR ND(0.000015) 0.0179 Inorganics-Unfiltered Total Suspended Solids NA ND(1.00) ND(1.00) NA Inorganics-Filtered Total Suspended Solids NA ND(1.00) ND(1.00) NA

Notes: 1. Samples were collected by ARCADIS and submitted to Columbia Analytical Services, Inc. and SGS Environmental Services, Inc. for

analysis of PCBs and total suspended solids (TSS). 2. NA -- Not Analyzed. 3. ND -- Analyte was not detected. The number in parenthesis is the associated detection limit. 4. DR -- Data received and reported in Table 2-4 of the January 2011 CD Monthly Report. 5. Only those constituents detected in one or more samples are summarized. 6. Field duplicate sample results are presented in brackets.

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2011\02-11\Analytical Data Tables\ Tables.xlsx -2 -3 Page 2 of 2 3/9/2011

ITEM 3

PLANT AREA

EAST STREET AREA 2-NORTH

(GECD140)

FEBRUARY 2011


- Completed development of a draft ERE for East Street Area 2-North (excluding Woodlawn Avenue).*

- Worked with PEDA on development of a draft ERE for the portion of Woodlawn Avenue within this RAA, combined with the portion of that road adjacent to the former 20s Complex.*

- Continued survey work for the above-referenced EREs.*

- Continued discussions with PEDA relating to the above-referenced EREs and other activities associated with future transfer of the former 19s Complex and Woodlawn Avenue to PEDA.

- Sent request to MassDOT for a subordination agreement for the ERE for East Street Area 2North.*

- Continued work on a draft Final Completion Report (FCR) for East Street Area 2-North.*

- Prepared a topographic survey plan for the former 19s Complex and the portion of Woodlawn Avenue within this RAA.*



None

c. Work Plans/Reports/Documents Submitted Impacts

- Provided draft proposal (in coordination with PEDA) for the remaining concrete slabs of certain buildings in East Street Area 2-North to EPA for review (February 16, 2011; retransmitted with minor corrections on February 17, 2011).*

- Provided draft ERE for East Street Area 2-North (along with a figure illustrating GE’s and PEDA’s understanding of the anticipated restricted areas) to EPA and MDEP for review (February 16, 2011; revised figure transmitted on February 17, 2011).*


ITEM 3

(cont’d)

PLANT AREA

EAST STREET AREA 2-NORTH

(GECD140)

FEBRUARY 2011


- Following EPA’s review of the draft proposal for the remaining concrete slabs of certain buildings in East Street Area 2-North, finalize that proposal and submit it to EPA.*

- Provide draft ERE (including survey plan) covering the portion of Woodlawn Avenue within this RAA, combined with the portion of that road adjacent to the former 20s Complex, to EPA and MDEP for review.* (Note: PEDA is having continued discussions with EPA and MDEP regarding the particular types of restricted areas in the portion of Woodlawn Avenue adjacent to the former 20s Complex.)

- Complete the survey work for the draft ERE for the remainder of East Street Area 2-North.*

- Following EPA’s review of the draft ERE for East Street Area 2-North (and associated figure) and completion of the survey work for that ERE, provide a further revised draft ERE and survey plans to EPA and MDEP for review.*

- Send requests for subordination agreements for the above-referenced EREs to holders of encumbrances on the properties subject to those EREs.*

- Continue discussions with PEDA relating to activities associated with future transfer of the former 19s Complex and Woodlawn Avenue to PEDA.

- Provide draft FCR for East Street Area 2-North to EPA for review.*

- Perform March 2011 dry weather flow inspection activities associated with Drainage Basin 005 under GE’s NPDES Permit.


Issues relating to EREs are under discussion among GE, PEDA, EPA, and MDEP.*


None


ITEM 5

PLANT AREA

HILL 78 & BUILDING 71 CONSOLIDATION AREAS

(GECD210/220)

FEBRUARY 2011

* All activities described below for this item were conducted pursuant to the Consent Decree.


- Transferred 5,800 gallons of leachate from Building 71 On-Plant Consolidation Area (OPCA) to Building 64G Groundwater Treatment Facility for treatment (see Table 5-1).

- Received notice from EPA and MDEP that the last draft of the ERE for the OPCAs (submitted on January 26, 2011) is acceptable to them.

- Received subordination agreements for this ERE from Pittsfield Generating Company (PGC) and the City of Pittsfield.

- Completed a draft of the Final Completion Report (FCR) for the OPCAs.


See attached table.


Provided draft FCR for the OPCAs to EPA for review (February 24, 2011)


Following receipt of the remaining subordination agreements for the ERE on Hill 78 Area-Remainder (see Item 6 below), finalize the ERE for the OPCAs and associated survey plans and title insurance commitment, and execute the ERE.


GE’s Revised Post-Removal Site Control Plan for the OPCAs, submitted in January 2011, is under EPA review. That plan includes an OPCA Post-Closure Groundwater Monitoring Proposal. If that proposal is approved by EPA in time, GE will conduct the spring 2011 groundwater sampling event at the OPCA monitoring wells as part of the separate OPCA Post-Closure Groundwater Monitoring Program (rather than the regular GMA 4 Interim Groundwater Quality Monitoring Program), as discussed in Item 24.d below.


None


TABLE 5-1 BUILDING 71 CONSOLIDATION AREA LEACHATE TRANSFER SUMMARY

PLANT AREA - HILL 78 & BUILDING 71 CONSOLIDATION AREAS

CONSENT DECREE MONTHLY STATUS REPORT GENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS

February 2011

Total Volume of Leachate Transferred

Month / Year (Gallons) February 2010 6,000

March 2010 0

April 2010 7,100

May 2010 4,000

June 2010 0

July 2010 6,000

August 2010 6,000

September 2010 6,000

October 2010 6,000

November 2010 6,000

December 2010 0

January 2011 5,580

February 2011 5,800

Note:1. Leachate is transferred from the Building 71 On-Plant

Consolidation Area to Building 64G for treatment.

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3/9/2011

ITEM 6

PLANT AREA

HILL 78 AREA - REMAINDER

(GECD160)

FEBRUARY 2011


- Received notice from EPA and MDEP that the last draft of the ERE for Hill 78 Area-Remainder (submitted on January 26, 2011) is acceptable to them.*

- Received subordination agreements for this ERE from PGC and the City of Pittsfield.*

- Continued efforts to obtain subordination agreements from Berkshire Gas Company, the U.S. Department of the Navy, and MassDOT.*

- Received comments from EPA on draft FCR for Hill 78 Area-Remainder.*


None


None


- Revise draft FCR and provide it to EPA for review.*

- Continue efforts to obtain subordination agreements from Berkshire Gas Company, the U.S. Department of the Navy, and MassDOT.*

- Following receipt of the remaining subordination agreements, finalize ERE, associated survey plans, and title insurance commitment, and execute ERE.


GE is continuing efforts to obtain subordination agreements from Berkshire Gas, the U.S. Department of the Navy, and MassDOT, and has requested assistance from EPA and MDEP regarding the latter two.


None


ITEM 7

PLANT AREA

UNKAMET BROOK AREA

(GECD170)

FEBRUARY 2011


- Provided information to the trustees of the trust that owns Parcel L12-1-5 regarding an ERE for that property, and received notice from them that the trust (or a successor owner) will execute an ERE on that property.*

- Provided draft ERE and associated survey plan for Parcel L12-1-5 to EPA and MDEP for review.*

- Received notice that the holder of the only recorded encumbrance on Parcel L12-1-5 that could affect the ERE will terminate that interest.*

- Received confirmation from the owners of Parcels L12-1-4 and L12-1-101 that they will execute EREs on those properties.*

- Conducted soil sampling for PCBs and using the Toxicity Characteristic Leaching Procedure (TCLP) in connection with General Dynamics excavation activities, as indicated in Table 7-1.





Submitted fifth interim draft design submittal for Unkamet Brook Area-Remainder (Culvert Cleaning Approach and Railroad Spur Beaver Deterrent/Debris Diversion Approach) to EPA via electronic mail (February 7, 2011).*


- Prepare Revised Final Removal Design/Removal Action (RD/RA) Work Plan for Unkamet Brook Area-West (due to EPA by April 15, 2011).*

- Conduct discussions with EPA regarding GE’s interim draft design submittals for Unkamet Brook Area-Remainder.*


ITEM 7

(cont’d)

PLANT AREA

UNKAMET BROOK AREA

(GECD170)

FEBRUARY 2011

d. Upcoming Scheduled and Anticipated Activities (next six weeks) (cont’d)

- Continue to develop Final RD/RA Work Plan for Unkamet Brook Area-Remainder.*

- Provide draft EREs and associated survey plans for Parcels L12-1-4 and L12-1-101 to EPA and MDEP for review.*

- Send requests for subordination agreements to the holders of encumbrances on Parcels L12-1-4 and L12-1-101.*

- Prepare draft ERE and survey plan for GE-owned Parcel K11-7-2.*

- Prepare requests for subordination agreements to the holders of encumbrances on Parcel K11-72.*

- It is anticipated that the City of Pittsfield will prepare an ERE for Parcel K11-7-9.*

- Perform March 2011 dry weather flow inspection activities associated with Drainage Basin 009 under GE’s NPDES Permit.


Based on agreement between GE and EPA, the submittal date for the Final RD/RA Work Plan for Unkamet Brook Area-Remainder has been postponed, and GE has submitted various interim draft design submittals for that area to EPA for review and discussion.*


Received EPA’s conditional approval letter for the Final RD/RA Work Plan for Unkamet Brook Area-West (February 14, 2011).



UNKAMET BROOK AREA GENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS

Date Received by Project Name Field Sample ID Sample Date Matrix Laboratory Analyses GE or ARCADIS

General Dynamics Excavation Sampling A4798-1 2/3/11 Soil SGS PCB, TCLP - excludes Pest, Herb 2/18/11



GENERAL DYNAMICS EXCAVATION SAMPLING UNKAMET BROOK AREA

GENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS (Results are presented in dry weight parts per million, ppm)

Sample ID Date

Collected Aroclor-1016 Aroclor-1221 Aroclor-1232 Aroclor-1242 Aroclor-1248 Aroclor-1254 Aroclor-1260 Total PCBs A4798-1 2/3/2011 ND(0.035) ND(0.035) ND(0.035) ND(0.035) ND(0.035) ND(0.035) ND(0.035) ND(0.035)

Notes: 1. Sample was collected by Veolia ES Technical Solutions, L.L.C. and submitted to SGS Environmental Services, Inc. for analysis of

PCBs and TCLP constituents. 2. Please refer to Table 7-3 for a summary of TCLP constituents. 3. ND - Analyte was not detected. The number in parenthesis is the associated detection limit.


TABLE 7-3 TCLP DATA RECEIVED DURING FEBRUARY 2011

GENERAL DYNAMICS EXCAVATION SAMPLING UNKAMET BROOK AREA


Sample ID: Parameter ate Collected:

TCLP Regulatory

Limits A4798-1 2/3/2011

Volatile Organics 1,1-Dichloroethene 0.7 ND(0.010) 1,2-Dichloroethane 0.5 ND(0.010) 2-Butanone 200 ND(0.25) Benzene 0.5 ND(0.010) Carbon Tetrachloride 0.5 ND(0.010) Chlorobenzene 100 ND(0.010) Chloroform 6 ND(0.010) Tetrachloroethene 0.7 ND(0.010) Trichloroethene 0.5 ND(0.010) Vinyl Chloride 0.2 ND(0.010) Semivolatile Organics 1,4-Dichlorobenzene 7.5 ND(0.050) 2,4,5-Trichlorophenol 400 ND(0.050) 2,4,6-Trichlorophenol 2 ND(0.050) 2,4-Dinitrotoluene 0.13 ND(0.050) Cresol 200 ND(0.050) Hexachlorobenzene 0.13 ND(0.050) Hexachlorobutadiene 0.5 ND(0.050) Hexachloroethane 3 ND(0.050) Nitrobenzene 2 ND(0.050) Pentachlorophenol 100 ND(0.25) Pyridine 5 ND(0.050) Inorganics Arsenic 5 ND(0.200) Barium 100 0.178 B Cadmium 1 0.00930 B Chromium 5 ND(0.100) L dLead 55 ND(0 100) ND(0.100) Mercury 0.2 0.0000490 B Selenium 1 ND(0.200) Silver 5 ND(0.100)


Environmental Services, Inc. for analysis of PCBs and TCLP constituents. 2. Please refer toTable 7-2 for a summary of PCBs. 3. ND - Analyte was not detected. The number in parenthesis is the associated detection limit.

Data Qualifiers:

Inorganics B - Indicates an estimated value between the instrument detection limit (IDL) and practical quantitation limit (PQL).


ITEM 12

FORMER OXBOW AREAS J & K

(GECD420)

FEBRUARY 2011



None


None


None


None


GE has received permission from the owner of Parcel K10-11-5 for access to that property to perform inspections to date. GE will continue efforts, as appropriate, to obtain a long-term access agreement for that property.


None


ITEM 13

HOUSATONIC RIVER AREA

UPPER ½ MILE REACH

(GECD800)

FEBRUARY 2011



None


None


None


None


GE submitted a report evaluating the total organic carbon (TOC) content and effectiveness of the isolation layer on the river sediments on March 14, 2007. The Final Completion Report for the Upper ½-Mile Reach Removal Action will be submitted following EPA review and approval of that report.


None


ITEM 14


1½ MILE REACH

(GECD820)

FEBRUARY 2011


On GE’s behalf, ARCADIS performed one round of water column monitoring at nine locations along the Housatonic River between Coltsville and Great Barrington, MA, on February 3 and 4, 2011. Two of these locations are situated in the 1½ Mile Reach: Lyman Street Bridge (Location 4) and Pomeroy Avenue Bridge (Location 6A). A composite grab sample was collected at each location and submitted to Northeast Analytical for analysis of PCBs (total), TSS, POC, and chlorophyll-a, as identified in Table 14-1. The sample collected at Pomeroy Avenue Bridge was also analyzed for volatile suspended solids (VSS). (The other seven locations are discussed under Items 15 and 20 below.)




None

d. Upcoming Scheduled and Anticipated Activities (next six weeks) Documents

- Continue Housatonic River water column monitoring.

- Review EPA’s revisions to its draft FCR for the 1½ Mile Reach Removal Action, including the Post-Removal Site Control Plan to be implemented by GE.*


No issues.


None



HOUSATONIC RIVER - 1 1/2 MILE REACH GENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS


Monthly Water Column Location-4 2/4/11 Water NEA PCB, TSS, POC, Chlorophyll-A 2/18/11 Monthly Water Column Location-6A 2/3/11 Water NEA PCB, TSS, VSS, POC, Chlorophyll-A 2/18/11


TABLE 14-2 SAMPLE DATA RECEIVED DURING FEBRUARY 2011

MONTHLY WATER COLUMN SAMPLING HOUSATONIC RIVER - 1 1/2 MILE REACH


Sample ID Location Date

Collected Aroclor-1016, -1232, -1242, -1254, -1260 Aroclor 1221 Aroclor 1248 Total PCBs POC TSS Chlorophyll (a) VSS

LOCATION-4 Lyman Street Bridge 02/04/11 ND(0.0000220) ND(0.0000220) ND(0.0000220) ND(0.0000220) 0.49 1.58 0.00093 NA LOCATION-6A Pomeroy Ave. Bridge 02/03/11 ND(0.0000059) 0.0000190 PB 0.00000720 PE 0.0000262 0.37 2.10 0.0012 1.50

Notes: 1. Samples were collected by ARCADIS, and submitted to Northeast Analytical, Inc. for analysis of PCBs (unfiltered), total suspended solids (TSS), particulate organic carbon (POC),

chlorophyll (a) and volatile suspended solids (VSS). 2. Sampling methods involved the collection of composite grab samples at each location, representative of three stations (25, 50, and 75 percent of the total river width at each location)

at 50 percent of the total river depth at each station. 3. NA - Not Analyzed. 4. ND - Analyte was not detected. The number in parenthesis is the associated detection limit.

Data Qualifiers:

PB - Aroclor 1221 is being used to report an altered PCB pattern exhibited by the sample. Actual Aroclor 1221 is not present in the sample, but is reported to more

accurately quantify PCBs present in a sample that has undergone environmental alteration. PE - Aroclor 1248 is being used to report an altered PCB pattern exhibited by the sample. Actual Aroclor 1248 is not present in the sample, but is reported to more

accurately quantify PCBs present in a sample that has undergone environmental alteration.


ITEM 15


REST OF THE RIVER

(GECD850)

FEBRUARY 2011


On GE’s behalf, ARCADIS performed one round of water column monitoring at nine locations along the Housatonic River between Coltsville and Great Barrington, MA, on February 3 and 4, 2011. Two locations are situated in the 1½ Mile Reach of the Housatonic River and were discussed in Item 14. One location is at the outlet of Silver Lake and is discussed in Item 20 below. Of the remaining six locations, two are located upstream of the 1½ Mile Reach: Hubbard Avenue Bridge (Location 1) and Newell Street Bridge (Location 2). The four remaining locations are situated in the Rest of the River: Holmes Road Bridge (Location 7); New Lenox Road Bridge (Location 9); Schweitzer Bridge (Location 12); and Division Street Bridge (Location 13). An additional location (Woods Pond Headwaters [Location 10]), that is normally part of the monthly monitoring, was not sampled during this monitoring event as the location was inaccessible due to snow and ice. Composite grab samples were collected at each location sampled and submitted to Northeast Analytical for analysis of PCBs (total), TSS, POC, and chlorophyll-a, as identified in Table 15-1.

b. Sampling/Test Results

c.


Work Plans/Reports/Documents Submitted

d.

None

Upcoming Scheduled and Anticipated Activities (next six weeks)

Continue Housatonic River monthly water column monitoring.


GE’s Revised Corrective Measures Study Report, submitted in October 2010, is under EPA review.*


None



HOUSATONIC RIVER - REST OF RIVER GENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS


Monthly Water Column Sampling HR-D1 (Location-12) 2/3/11 Water NEA PCB, TSS, POC, Chlorophyll-A 2/18/11 Monthly Water Column Sampling Location-1 2/4/11 Water NEA PCB, TSS, POC, Chlorophyll-A 2/18/11 Monthly Water Column Sampling Location-12 2/3/11 Water NEA PCB, TSS, POC, Chlorophyll-A 2/18/11 Monthly Water Column Sampling Location-13 2/3/11 Water NEA PCB, TSS, POC, Chlorophyll-A 2/18/11 Monthly Water Column Sampling Location-2 2/4/11 Water NEA PCB, TSS, POC, Chlorophyll-A 2/18/11 Monthly Water Column Sampling Location-7 2/3/11 Water NEA PCB, TSS, POC, Chlorophyll-A 2/18/11 Monthly Water Column Sampling Location-9 2/3/11 Water NEA PCB, TSS, POC, Chlorophyll-A 2/18/11

Note: 1. The parent sample location associated with the field duplicate is presented in parenthesis.


1. Samples were collected by ARCADIS, and submitted to Northeast Analytical, Inc. for analysis of unfiltered PCBs, total suspended solids (TSS), particulate organic carbon (POC), and chlorophyll (a).

2. Sampling methods involved the collection of composite grab samples at each location, representative of three stations (25, 50, and 75 percent of the total river width at each location) at 50 percent of the total river depth at each station.

3. ND Analyte was not detected. The number in parenthesis is the associated detection limit.4. Field duplicate sample results are presented in brackets.

Data Qualifiers:

AG - Aroclor 1260 is being reported as the best Aroclor match. The sample exhibits an altered PCB pattern.PD Aroclor 1242 is being used to report an altered PCB pattern exhibited by the sample. Actual Aroclor 1242 is not present in the sample, but is reported to more accurately quantify PCBs present in a sample that has undergone environmental alteration.


MONTHLY WATER COLUMN SAMPLING HOUSATONIC RIVER -RE ST OF RIVER



Collected Aroclor-1016, -1221, -1232,-1248, -1254 Aroclor 1242 Aroclor 1260 Total PCBs POC TSS Chlorophyll (a)

LOCATION-1 Hubbard Avenue Bridge 02/04/11 ND(0.0000220) ND(0.0000220) ND(0.0000220) ND(0.0000220) 0.84 2.80 0.00130 LOCATION-2 Newell Street Bridge 02/04/11 ND(0.0000220) ND(0.0000220) ND(0.0000220) ND(0.0000220) 0.66 2.08 0.000970 LOCATION-7 Holmes Road Bridge 02/03/11 ND(0.0000220) ND(0.0000220) 0.0000530 AG 0.0000530 0.31 1.50 0.00120 LOCATION-9 New Lenox Road Bridge 02/03/11 ND(0.0000220) 0.0000290 PD ND(0.0000220) 0.0000290 0.28 1.50 0.000770 LOCATION-12 Schweitzer Bridge 02/03/11 ND(0.0000220) 0.0000380 PD 0.0000240 AG 0.0000620 0.26 1.79 0.00140

02/03/11 [ND(0.0000220)] [0.0000360 PD] [0.0000270 AG] [0.0000630] [0.63] [1.30] [0.00170] LOCATION-13 Division Street Bridge 02/03/11 ND(0.0000220) ND(0.0000220) ND(0.0000220) ND(0.0000220) 0.45 ND(1.00) 0.00930

Notes: 1. Samples were collected by ARCADIS, and submitted to Northeast Analytical, Inc. for analysis of unfiltered PCBs, total suspended solids (TSS), particulate organic carbon

(POC), and chlorophyll (a). 2. Sampling methods involved the collection of composite grab samples at each location, representative of three stations (25, 50, and 75 percent of the total river width at each

location) at 50 percent of the total river depth at each station. 3. ND -- Analyte was not detected. The number in parenthesis is the associated detection limit. 4. Field duplicate sample results are presented in brackets.

Data Qualifiers:

AG - Aroclor 1260 is being reported as the best Aroclor match. The sample exhibits an altered PCB pattern. PD -- Aroclor 1242 is being used to report an altered PCB pattern exhibited by the sample. Actual Aroclor 1242 is not present in the sample, but is reported to more

accurately quantify PCBs present in a sample that has undergone environmental alteration.

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2011\02-11\Analytical Data Tables\ Tables.xlsx -1 5-2 Page 1 of 1 3/9/2011

ITEM 20

OTHER AREAS

SILVER LAKE AREA

(GECD600)

FEBRUARY 2011


- On GE’s behalf, ARCADIS performed one round of water column monitoring at the Silver Lake Outfall on February 4, 2011, as noted in Table 20-1, and also obtained a gauge reading (see Item 21.a).

- PEDA obtained concurrence by the Pittsfield Conservation Commission on PEDA’s allocation of certain flood storage compensation to GE for use in GE’s remediation/restoration activities at the Silver Lake Area.*

- PEDA provided GE with a copy of a Notice of Intent signed by PEDA and Western Massachusetts Electric Company (WMECo) regarding the transfer to PEDA of the WMECoowned bank property on the northern side of the Lake.

b.

- GE continued efforts to obtain access permission for performance of forthcoming remediation activities.*

Sampling/Test Results Received



d.

None

Upcoming Scheduled and Anticipated Activities (next six weeks)

- Continue efforts to obtain access permission for performance of forthcoming remediation activities.*

- Continue communications with EPA and other parties regarding a CD Modification to address the plantings to be installed on the northern bank of Silver Lake.*


f.

Certain issues relating to GE’s Revised Final RD/RA Work Plan (submitted in November 2010) and the performance of remediation/restoration activities at this RAA are under discussion with EPA.*

Proposed/Approved Work Plan Modifications

None



SILVER LAKE AREA GENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS


Monthly Water Column Location-4A 2/4/11 Water NEA PCB, TSS 2/18/11


1. Sample was collected by ARCADIS, and submitted to Northeast Analytical, Inc. for analysis of unfiltered PCBs and total suspended solids (TSS).2. Sampling methods involved the collection of single grab 50 percent of the total river width, and 50 percent of the total river depth.3. ND Analyte was not detected. The number in parenthesis is the associated detection limit.

Data Qualifiers:

PB - Aroclor 1221 is being used to report an altered PCB pattern exhibited by the sample. Actual Aroclor 1221is not present in the sample, but is reported to more accurately quantify PCBs present in a sample that has undergone environmental alteration. PD Aroclor 1242 is being used to report an altered PCB pattern exhibited by the sample. Actual Aroclor 1242 is not present in the sample, but is reported to more accurately quantify PCBs present in a sample that has undergone environmental alteration.


MONTHLY WATER COLUMN SAMPLING SILVER LAKE AREA



Collected Aroclor-1016,

-1232, -1248, -1254 Aroclor 1221 Aroclor 1242 Aroclor 1260 Total PCBs TSS LOCATION-4A Silver Lake Outlet 2/4/2011 ND(0.0000220) 0.0000700 PB 0.0000240 PD ND(0.0000220) 0.0000940 1.60

Notes:

1. Sample was collected by ARCADIS, and submitted to Northeast Analytical, Inc. for analysis of unfiltered PCBs and total suspended solids (TSS). 2. Sampling methods involved the collection of single grab 50 percent of the total river width, and 50 percent of the total river depth. 3. ND -- Analyte was not detected. The number in parenthesis is the associated detection limit.

Data Qualifiers:

PB - Aroclor 1221 is being used to report an altered PCB pattern exhibited by the sample. Actual Aroclor 1221is not present in the sample, but is reported to more

accurately quantify PCBs present in a sample that has undergone environmental alteration. PD -- Aroclor 1242 is being used to report an altered PCB pattern exhibited by the sample. Actual Aroclor 1242 is not present in the sample, but is reported to

more accurately quantify PCBs present in a sample that has undergone environmental alteration.

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ITEM 21

GROUNDWATER MANAGEMENT AREAS

PLANT SITE 1 (GMA 1)

(GECD310)

FEBRUARY 2011



General:

- Conducted routine groundwater elevation monitoring and non-aqueous-phase-liquid (NAPL) monitoring/recovery activities.

- Conducted sampling of well water generated from well 17N, as indicated in Table 21-1.

- Conducted yearly waste analysis of dense NAPL (DNAPL) derived from wells LSSC-07, LSSC-08I and LS-30, as indicated in Table 21-1.

East Street Area 1-North and South:

- Continued automated groundwater and NAPL pumping at North Side and South Side Caissons. No light NAPL (LNAPL) was removed from the North Side Caisson in February. No LNAPL was removed from the South Side Caisson in February.

- Continued routine well monitoring and manual NAPL removal activities. Approximately 1.102 liters (0.291 gallon) of LNAPL were removed from this area during February.

East Street Area 2-South:

- Continued automated groundwater and LNAPL removal activities. A total of approximately 3,507,825 gallons of groundwater was recovered from pumping systems 64R, 64S, 64V, 64X, RW-1(S), RW-1(X), and RW-2(X). In addition, approximately 489 gallons of LNAPL were removed from pumping systems 64R, 64V, GMA1-17W, RW-1(S), RW-2(X), RW-4, 64X, and 64S Caisson.

- Continued automated DNAPL removal activities. Approximately 25 gallons of DNAPL were removed from pumping system RW-3(X) during February.

- Continued routine well monitoring and manual NAPL removal activities. Approximately 23.830 liters (6.288 gallons) of LNAPL were removed from wells in this area during February. Approximately 3.701 liters (0.977 gallon) of DNAPL were removed from wells in this area during February.


ITEM 21

(cont’d)



(GECD310)

FEBRUARY 2011

a. Activities Undertaken/Completed (cont’d)

East Street Area 2-South (cont’d):

- Treated/discharged approximately 3,426,846 gallons of water through Building 64G Groundwater Treatment Facility.

East Street Area 2-North:

- Continued well monitoring and NAPL removal activities. No LNAPL was removed from wells in this area in February.

20s, 30s, and 40s Complexes:

- Continued well monitoring and NAPL removal activities. No LNAPL was recovered from this area during February.

Lyman Street Area:

- Continued automated groundwater and NAPL removal activities. Approximately 127,311 gallons of groundwater were recovered from pumping systems RW-1R, RW-2, and RW-3. No LNAPL was removed from the automated recovery systems during February.

- Continued routine well monitoring and NAPL removal activities. Approximately 0.308 liter (0.081 gallon) of LNAPL was removed from wells in this area during February. Approximately 0.923 liter (0.244 gallon) of DNAPL was removed from wells in this area during February.

Newell Street Area II:

- Continued automated DNAPL removal activities. No DNAPL was removed by System 2 in February.

- Continued routine well monitoring and NAPL removal activities. No LNAPL was removed from this area during February. Approximately 1.073 liters (0.283 gallon) DNAPL were recovered from wells in this area during February.


ITEM 21

(cont’d)



(GECD310)

FEBRUARY 2011

a. Activities Undertaken/Completed (cont’d)

Newell Street Area I:

- No activities.

Silver Lake Area:

- Continued routine monitoring of lake level.




None


- Continue routine groundwater and NAPL monitoring/recovery activities.

- Prepare and submit Fall 2010 NAPL Monitoring Report. That report will also include a NAPL Volatilization Assessment Proposal identifying all occupied (or potentially occupied) buildings in GMA 1 where the presence of LNAPL in the groundwater is less than 15 feet from the ground surface and within 30 feet laterally from the buildings (due to EPA by March 14, 2011; see Item 21.f below).

- Conduct spring 2011 bailing round.

- Initiate preparations for spring 2011 sampling event and groundwater elevation/NAPL monitoring round.


The decommissioning of well ESA1N-52, located in East Street, has been postponed pending discussions with the City of Pittsfield to confirm the proper procedures needed to remove this well.


ITEM 21

(cont’d)



(GECD310)

FEBRUARY 2011


GE and EPA have agreed that GE will combine the Fall 2010 NAPL Monitoring Report (originally due to EPA by February 28, 2011) and the NAPL Volatilization Assessment Proposal (originally due to EPA by March 15, 2011) into a single document, to be submitted to EPA by March 14, 2011.



GROUNDWATER MANAGEMENT AREA 1 GENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS

Sample Date Received by Project Name Field Sample ID Date Matrix Laboratory Analyses GE or ARCADIS

Soil and Debris from Maintenance of 32, 30, P-3 and 51-8 Wells Soil-Debris-1 1/26/11 Soil SGS PCB, TCLP - Excludes Pest, Herb 2/11/11 Well Development Water Sampling from CC-R Well GMA1-CC-R 1/24/11 Groundwater SGS PCB, VOC, SVOC, Total RCRA 8 Metals 2/7/11

Well Development Water Sampling from ESA2-6R and 95-4RR Wells GMA1-6R/95-4RR 1/24/11 Groundwater SGS PCB, VOC, SVOC, Total RCRA 8 Metals 2/7/11 Well Development Water Sampling from GMA1-29 and Gma1-30 Wells GMA1-29/30 1/24/11 Groundwater SGS PCB, VOC, SVOC, Total RCRA 8 Metals 2/7/11

Well Water Generated from Well 17N B2710/E2688 2/3/11 Water SGS PCB, VOC, SVOC, Total Metals 2/18/11 Yearly Waste Analysis of DNAPL Wells LSSC-07, LSSC-08I and LS-30 PTA497935-1 2/15/11 Oil SGS PCB, VOC, SVOC, Total Metals



WELL DEVELOPMENT WATER SAMPLING FROM 95-4RR, GMA1-6R, GMA1-29, GMA1-30 AND CC-R WELLS GROUNDWATER MANAGEMENT AREA 1



GMA1-6R/95-4RR 01/24/11

GMA1-29/30 01/24/11

GMA1-CC-R 01/24/11

Volatile Organics Acetone 220 ND(0.010) ND(0.10) Benzene ND(0.10) 0.015 0.019 J Chlorobenzene 0.50 0.065 0.34 Tetrachloroethene ND(0.10) 0.00062 J ND(0.020) Trichlorofluoromethane ND(0.10) 0.00072 J ND(0.020) PCBs-Unfiltered Aroclor-1248 ND(0.33) 0.00023 0.0011 J Aroclor-1254 0.97 0.00031 0.0026 Aroclor-1260 4.9 0.000076 0.013 Total PCBs 5.87 0.000616 0.0167 Semivolatile Organics 1,2-Dichlorobenzene 0.0017 J 0.00086 J ND(0.0051) 1,3-Dichlorobenzene 0.0035 J 0.0031 J ND(0.0051) 1,4-Dichlorobenzene 0.0066 0.024 0.0018 J 2-Chlorophenol 0.015 0.0022 J 0.0046 J Acenaphthene ND(0.0051) 0.0021 J ND(0.0051) Acetophenone 0.0019 J ND(0.0051) ND(0.0051) Anthracene 0.0025 J ND(0.0051) ND(0.0051) Benzo(a)anthracene 0.0014 J ND(0.0051) ND(0.0051) Benzo(a)pyrene 0.0011 J ND(0.0051) ND(0.0051) Fluoranthene 0.0037 J ND(0.0051) ND(0.0051) Naphthalene 0.0013 J 0.0016 J 0.0023 J Phenanthrene 0.0091 ND(0.0051) ND(0.0051) Pyrene 0.0051 ND(0.0051) ND(0.0051) Inorganics-Unfiltered Barium 0.0997 B 0.176 ND(0.100) Cadmium 0.000320 B 0.000310 B 0.000280 B Chromium 0.00396 B ND(0.0100) ND(0.0100) MMercury 0 000282 B 0.000282 B ND(0 00028 )ND(0.000285) 0 00044 0.000445 Selenium 0.00340 B ND(0.0200) ND(0.0200) Silver 0.000410 B 0.000410 B 0.000470 B

Notes: 1. Samples were collected by Veolia ES Technical Solutions, L.L.C. and submitted to SGS Environmental Services, Inc.

for analysis of volatiles, PCBs, semivolatiles and metals. 2. ND - Analyte was not detected. The number in parentheses is the associated detection limit. 3. Only those constituents detected in one or more samples are summarized.

Data Qualifiers:

Organics (volatiles, PCBs, semivolatiles) J - Indicates an estimated value less than the practical quantitation limit (PQL).

Inorganics B - Indicates an estimated value between the instrument detection limit (IDL) and PQL.



SOIL AND DEBRIS FROM MAINTENANCE OF 32, 30, P-3 AND 51-8 WELLS GROUNDWATER MANAGEMENT AREA 1

GENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS (Results are presented in dry weight parts per million, ppm)

Sample ID Date

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

Soil-Debris-1 1/26/2011 ND(1.4) 2.8 11 13.8

Notes:

1. Sample was collected by Veolia ES Technical Solutions, L.L.C. and submitted to SGS Environmental Services, Inc. for analysis of PCBs and TCLP constituents.

2. Please refer to Table 21-4 for a summary of TCLP constituents. 3. ND - Analyte was not detected. The number in parenthesis is the associated detection limit.


TABLE 21-4 TCLP DATA RECEIVED DURING FEBRUARY 2011

SOIL AND DEBRIS FROM MAINTENANCE OF 32, 30, P-3 AND 51-8 WELLS GROUNDWATER MANAGEMENT AREA 1



TCLP Regulatory

Limits Soil-Debris-1

1/26/2011 Volatile Organics 1,1-Dichloroethene 0.7 ND(0.010) 1,2-Dichloroethane 0.5 ND(0.010) 2-Butanone 200 ND(0.25) Benzene 0.5 ND(0.010) Carbon Tetrachloride 0.5 ND(0.010) Chlorobenzene 100 ND(0.010) Chloroform 6 ND(0.010) Tetrachloroethene 0.7 ND(0.010) Trichloroethene 0.5 ND(0.010) Vinyl Chloride 0.2 ND(0.010) Semivolatile Organics 1,4-Dichlorobenzene 7.5 ND(0.050) 2,4,5-Trichlorophenol 400 ND(0.050) 2,4,6-Trichlorophenol 2 ND(0.050) 2,4-Dinitrotoluene 0.13 ND(0.050) Cresol 200 ND(0.050) Hexachlorobenzene 0.13 ND(0.050) Hexachlorobutadiene 0.5 ND(0.050) Hexachloroethane 3 ND(0.050) Nitrobenzene 2 ND(0.050) Pentachlorophenol 100 ND(0.25) Pyridine 5 ND(0.050) Inorganics Arsenic 5 ND(0.200) Barium 100 0.246 B Cadmium 1 ND(0.100) Chromium 5 ND(0.100) L dLead 55 0 0689 B 0.0689 B Mercury 0.2 ND(0.000570) Selenium 1 ND(0.200) Silver 5 0.0328 B


Environmental Services, Inc. for analysis of PCBs and TCLP constituents. 2. Please refer to Table 21-3 for a summary of PCBs. 3. ND - Analyte was not detected. The number in parenthesis is the associated detection limit.

Data Qualifiers:

Inorganics B - Indicates an estimated value between the instrument detection limit (IDL) and

practical quantitation limit (PQL).


1. Sample was collected by Veolia ES Technical Solutions, L.L.C. and submitted to SGS Environmental Services, Inc. for analysis of volatiles, PCBs, semivolatiles and metals.

2. Only detected constituents are summarized.3. Indicates that all constituents for the parameter group were not detected.

Data Qualifiers:

Organics (volatiles, PCBs, semivolatiles)J Indicates an estimated value less than the practical quantitation limit (PQL).

Inorganics


WELL WATER GENERATED FROM WELL 17N

GROUNDWATER MANAGEMENT AREA 1



B2710/E2688 02/03/11

Volatile Organics None Detected --PCBs-Unfiltered Aroclor-1248 0.0040 J Aroclor-1254 0.023 Aroclor-1260 0.11 Total PCBs 0.137 Semivolatile Organics 1,2,4,5-Tetrachlorobenzene 0.0010 J 1,2,4-Trichlorobenzene 0.023 1,2-Dichlorobenzene 0.012 1,3-Dichlorobenzene 0.050 2,4-Dichlorophenol 0.0030 J Inorganics-Unfiltered Barium 0.128 Cadmium 0.00217 B

Notes: 1. Sample was collected by Veolia ES Technical Solutions, L.L.C. and submitted to

SGS Environmental Services, Inc. for analysis of volatiles, PCBs, semivolatiles and metals.

2. Only detected constituents are summarized. 3. ---- Indicates that all constituents for the parameter group were not detected.

Data Qualifiers:

Organics (volatiles, PCBs, semivolatiles) J -- Indicates an estimated value less than the practical quantitation limit (PQL).

Inorganics B - Indicates an estimated value between the instrument detection limit (IDL) and PQL.


TABLE 21-6 MEASUREMENT AND REMOVAL OF RECOVERABLE LNAPL

EAST STREET AREA 1 - NORTH & SOUTH GROUNDWATER MANAGEMENT AREA 1


February 2011

Well Name

Date Depth

to Water (ft BMP)

Depth to LNAPL (ft BMP)

LNAPL Thickness

(feet)

LNAPL Removed

(liters)

February 2011 Removal (liters)

GMA 1 - East Street Area 1 - South 76 2/18/2011 8.79 7.69 1.10 0.678 0.678

GMA 1 - East Street Area 1 - North 25 2/16/2011 7.18 7.10 0.08 0.049 0.049 105 2/16/2011 7.38 7.35 0.03 0.018 0.018 106 2/17/2011 10.32 9.74 0.58 0.357 0.357

Total Manual LNAPL Removal for February 2011: 1.102 liters 0.291 gallons

Note: 1. ft BMP - feet Below Measuring Point.

Page 1 of 1

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Collected Recovered Percent

TABLE 21-7 AUTOMATED LNAPL & GROUNDWATER RECOVERY SYSTEMS MONTHLY SUMMARY



February 2011

Caisson Month

Vol. LNAPL Collected (gallon)

Vol. Water Recovered

(gallon) Percent

Downtime Northside February 2010 0.0 7,550

March 2010 0.0 33,300 14.58

April 2010 0.0 36,950 10.71

May 2010 0.0 13,600

June 2010 0.0 14,950 0.83

July 2010 0.0 9,600

August 2010 0.0 10,450

September 2010 0.0 6,650

October 2010 0.0 3,650

November 2010 0.0 5,150

December 2010 0.0 9,750

January 2011January 2011 0.00.0 19,050,

February 2011 0.0 16,200

Southside February 2010 0.0 60,940

March 2010 3.0 77,270 9.03

April 2010 0.0 68,430 10.71

May 2010 0.0 53,620 11.11

June 2010 0.0 84,250 0.83

J l 2010July 2010 0 00.0 60 650 60,650

August 2010 0.0 57,480

September 2010 0.0 68,070

October 2010 0.0 40,452

November 2010 2.5 84,230

December 2010 0.0 103,880

January 2011January 2011 0.00.0 72,170,

February 2011 0.0 63,652

Note: 1. Northside Caisson flow meter replaced and intialized in January 2010.

Page 1 of 1

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TABLE 21-8 ROUTINE WELL MONITORING



February 2011

Well Name

Measuring Point Elev.

(feet) Date

Depth to Water (ft BMP)

Depth to LNAPL

(ft BMP)

LNAPL Thickness

(feet)

Depth to DNAPL (ft BMP)

Total Depth

(ft BMP)

DNAPL Thickness

(feet)

Corrected Water Elev.

(feet) GMA 1 - East Street Area 1 - North

25 1,000.70 2/16/2011 7.18 7.10 0.08 --- 16.55 0.00 993.59 105 1,002.85 2/16/2011 7.38 7.35 0.03 --- 17.38 0.00 995.50 106 1,004.06 2/17/2011 10.32 9.74 0.58 --- 17.69 0.00 994.28

North Caisson 997.84 2/3/2011 17.30 17.29 0.01 --- 19.80 0.00 980.55 North Caisson 997.84 2/10/2011 17.30 17.29 0.01 --- 19.80 0.00 980.55 North Caisson 997.84 2/16/2011 17.39 17.38 0.01 --- 19.80 0.00 980.46 North Caisson 997.84 2/24/2011 17.51 17.50 0.01 --- 19.80 0.00 980.34

GMA 1 - East Street Area 1 - South 31R 1,000.23 2/17/2011 9.69 --- 0.00 --- 15.10 0.00 990.54 33 999.50 2/22/2011 5.71 --- 0.00 --- 21.69 0.00 993.79 34 999.90 2/18/2011 4.42 --- 0.00 --- 21.81 0.00 995.48 72 1,000.62 2/18/2011 5.86 --- 0.00 --- 22.44 0.00 994.76

72R 1,000.75 2/23/2011 6.92 --- 0.00 --- 13.04 0.00 993.83 75 1,000.65 2/18/2011 7.76 --- 0.00 --- 22.81 0.00 992.89 76 1,000.45 2/18/2011 8.79 7.69 1.10 --- 22.89 0.00 992.68

South Caisson 1,001.11 2/3/2011 13.97 13.95 0.02 --- 15.00 0.00 987.16 South Caisson 1,001.11 2/10/2011 14.00 13.98 0.02 --- 15.00 0.00 987.13 South Caisson 1,001.11 2/16/2011 14.02 14.00 0.02 --- 15.00 0.00 987.11 South Caisson 1,001.11 2/24/2011 13.98 13.97 0.01 --- 15.00 0.00 987.14

Notes: 1. ft BMP - feet Below Measuring Point. 2. --- indicates NAPL was not present in a measurable quantity.

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TABLE 21-9 AUTOMATED LNAPL/DNAPL & GROUNDWATER RECOVERY SYSTEMS

EAST STREET AREA 2 - SOUTH GROUNDWATER MANAGEMENT AREA 1

CONSENT DECREE MONTHLY STATUS REPORT GENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS

February 2011

Recovery System

Location Month

Oil Collected

(gallon)

Water Recovered

(gallon) Percent

Downtime 17W February 2010 8

March 2010 29 0.69 April 2010 0 May 2010 0 June 2010 0 July 2010 1

August 2010 1 September 2010 2

October 2010 1 November 2010 1 December 2010 1 January 2011 1 February 2011 1

64R February 2010 10 207,185 March 2010 63 315,088 0.69 April 2010 13 409,804 May 2010 38 315,515 June 2010 50 108,507 0.83 July 2010 13 2,449

August 2010 0 234 September 2010 0 78

October 2010 0 74 November 2010 0 756 December 2010 0 58,709 January 2011 0 13,863 February 2011 0 165

64S System February 2010 175 562,253 March 2010 125 1,173,097 0.69 April 2010 388 1,174,787 May 2010 217 751,918 June 2010 275 595,798 1.67 July 2010 13 192,941

August 2010 0 125,196 September 2010 25 135,731

October 2010 0 241,520 November 2010 0 53,364 December 2010 50 370,789 January 2011 0 379,311 February 2011 13 207,582

64V February 2010 494 814,400 March 2010 864 1,198,000 0.69 April 2010 605 1,013,400 May 2010 320 842,300 June 2010 349 977,200 0.83 July 2010 473 729,500



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February 2011

Recovery System

Location Month

Oil Collected

(gallon)

Water Recovered

(gallon) Percent

Downtime

64X February 2010 12 388,800 March 2010 50 518,400 3.47 April 2010 5 403,200 May 2010 14 388,800 June 2010 12 504,000 0.83 July 2010 123 417,600



RW-2(X) February 2010 0 529,773 March 2010 0 638,070 0.69 April 2010 0 940,150 May 2010 0 790,610 June 2010 0 1,009,556 0.83 July 2010 0 836,449



RW-1(S) 1 February 2010 32 454,396 March 2010 46 747,418 0.69 April 2010 35 747,264 May 2010 40 542,031 June 2010 45 596,864 0.83 July 2010 43 424,571



RW-1(X) February 2010 0 266,084 March 2010 5 477,074 0.69 April 2010 5 325,230 May 2010 0 245,637 June 2010 0 307,238 0.83 July 2010 0 267,373


October 2010 0 241,721 November 2010 4 235,547 December 2010 5 298,760 January 2011 0 202,061 13.79 February 2011 0 236,214


3/9/2011




February 2011

Recovery System

Location Month

Oil Collected

(gallon)

Water Recovered

(gallon) Percent

Downtime

RW-4 February 2010 0 941,780 March 2010 6.2 1,239,425 0.69 April 2010 2.1 1,031,121 May 2010 0 955,661 June 2010 0 1,209,207 0.83 July 2010 18.7 951,492

August 2010 43.8 940,327 September 2010 48.4 571,022

October 2010 49.9 1,140,980 November 2010 31.2 1,097,835 December 2010 24.9 1,371,656 January 2011 20.9 1,134,138 February 2011 23 1,075,578

RW-3(X) February 2010 21 March 2010 39 0.69 April 2010 27 May 2010 40 June 2010 34 July 2010 36

August 2010 32 September 2010 55

October 2010 8 November 2010 16 December 2010 17 January 2011 30 February 2011 25

Summary of Total Automated Removal Water: 3,507,825 Gallons

LNAPL: 489 Gallons DNAPL: 25 Gallons

Notes:

1. The flow meter at recovery well RW-1(S) was reset in July 2009.


3/9/2011

TABLE 21-10 WELL MONITORING AND RECOVERY OF LNAPL

EAST STREET AREA 2 - NORTH & SOUTH / 20s, 30s, & 40s COMPLEXES GROUNDWATER MANAGEMENT AREA 1


February 2011

Well Name

Date Depth

to Water (ft BMP)


LNAPL Thickness

(feet)

LNAPL Removed

(liters)


East Street Area 2 - South 13 2/11/2011 19.61 18.83 0.78 0.481 0.481 14 2/11/2011 19.56 18.88 0.68 0.419 0.419

25R 1/31/2011 21.72 21.71 0.01 0.006

0.0182/14/2011 22.18 22.17 0.01 0.006 2/21/2011 22.27 22.26 0.01 0.006

29

1/31/2011 18.67 18.66 0.01 0.006

0.0242/7/2011 18.71 18.70 0.01 0.006 2/14/2011 18.91 18.90 0.01 0.006 2/21/2011 18.86 18.85 0.01 0.006

48 2/11/2011 18.30 16.31 1.99 1.227 1.227 55 2/11/2011 14.96 13.62 1.34 0.826 0.826

95-04RR 2/11/2011 15.76 15.66 0.10 0.247 0.247

ES2-15R

1/31/2011 15.62 13.16 2.46 1.517

6.6052/7/2011 15.81 13.10 2.71 1.671 2/14/2011 16.08 13.32 2.76 1.702 2/21/2011 15.98 13.20 2.78 1.715

GMA1-14

1/31/2011 19.79 19.78 0.01 0.006

0.0242/7/2011 19.99 19.98 0.01 0.006 2/14/2011 20.33 20.32 0.01 0.006 2/21/2011 20.41 20.40 0.01 0.006

GMA1-15

1/31/2011 17.53 16.18 1.35 0.832

2.9042/7/2011 17.40 16.21 1.19 0.734 2/14/2011 17.70 16.37 1.33 0.820 2/21/2011 17.02 16.18 0.84 0.518

GMA1-16 2/10/2011 13.52 13.44 0.08 0.049 0.049

GMA1-19

1/31/2011 12.53 12.14 0.39 0.240

0.5592/7/2011 12.28 12.13 0.15 0.092 2/14/2011 12.56 12.41 0.15 0.092 2/21/2011 12.42 12.20 0.22 0.135

ESA2S-PZ-1

1/31/2011 14.95 12.90 2.05 1.264

4.7232/7/2011 14.65 12.89 1.76 1.085 2/14/2011 15.11 13.11 2.00 1.233 2/21/2011 14.76 12.91 1.85 1.141

ESA2S-PZ-2

1/31/2011 12.73 12.36 0.37 0.228

0.4422/7/2011 12.58 12.36 0.22 0.135 2/14/2011 12.68 12.66 0.02 0.012 2/21/2011 12.54 12.43 0.11 0.067

ESA2S-PZ-6

1/31/2011 14.88 14.25 0.63 0.388

0.8922/7/2011 14.61 14.20 0.41 0.252 2/14/2011 14.74 14.47 0.27 0.166 2/21/2011 14.41 14.27 0.14 0.086

ESA2S-PZ-7

1/31/2011 15.80 13.98 1.82 1.122

4.3902/7/2011 16.02 13.90 2.12 1.307 2/14/2011 16.11 14.17 1.94 1.196 2/21/2011 15.21 13.97 1.24 0.765

Total LNAPL Removal East Street Area 2 - South for February 2011: 23.830 liters 6.288 gallons

Total LNAPL Removal for February 2011: 23.830 liters 6.288 gallons

Note: 1. ft BMP - feet Below Measuring Point.

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TABLE 21-11 WELL MONITORING AND RECOVERY OF DNAPL



February 2011

Well Name

Date Depth

to Water (ft BMP)


DNAPL Thickness

(feet)

DNAPL Removed

(liters)


East Street Area 2 - South E2SC-03I* 2/22/2011 9.80 39.24 6.00 3.701 3.701

Total DNAPL Removal East Street Area 2 - South for February 2011: 3.701 liters 0.977 gallons

Total DNAPL Removal for February 2011: 3.701 liters 0.977 gallons

Note: 1. ft BMP - feet Below Measuring Point

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TABLE 21-12 64G TREATMENT PLANT DISCHARGE DATA

GROUNDWATER MANAGEMENT AREA 1


February 2011

Date Housatonic River

Discharge (gallons)

Recharge Pond Discharge (gallons)

Total Discharge (gallons)

February 2010 3,765,500 104,457 3,869,957

March 2010 5,497,600 40,836 5,538,436

April 2010 6,086,710 178,635 6,271,755

May 2010 5,012,180 211,489 5,223,669

June 2010 3,792,660 263,780 4,236,440

July 2010 3,613,250 299,406 3,912,656

August 2010 2,960,320 301,621 3,261,941

September 2010 2,431,150 305,952 2,737,102

October 2010 3,666,440 167,594 3,834,034

November 2010 3,589,280 193,924 3,783,204

December 2010 4,148,310 137,854 4,286,164

January 2011 3,891,960 157,751 4,049,711

February 2011 3,285,680 141,166 3,426,846

After treatment, the majority of the water processed at GE's Building 64G groundwater treatment facility is discharged to the Housatonic River through NPDES permitted Outfall 005. However, as part of GE's overall efforts to contain NAPL within the site and to optimize NAPL recovery operations, a portion of the treated water discharged from the 64G facility is routed to GE's on-site recharge pond located in East Street Area 2-South.

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February 2011

Well Name


(feet) Date



LNAPL Thickness

(feet)


Total Depth

(ft BMP)

DNAPL Thickness

(feet)


(feet) 30's Complex

GMA1-29 989.72 2/15/2011 13.33 --- 0.00 --- 19.74 0.00 976.39 RF-02 983.36 2/15/2011 7.55 --- 0.00 --- 19.22 0.00 975.81

RF-03S 984.53 2/15/2011 8.85 --- 0.00 --- 14.94 0.00 975.68 RF-16R 986.48 2/15/2011 10.63 --- 0.00 --- 16.22 0.00 975.85

East Street Area 2 - South 13 990.88 2/11/2011 19.61 18.83 0.78 --- 23.22 0.00 972.00 14 991.61 2/11/2011 19.56 18.88 0.68 --- 25.28 0.00 972.68

18R NA 1/31/2011 13.58 --- 0.00 --- 18.74 0.00 NA 18R NA 2/7/2011 13.52 --- 0.00 --- 18.75 0.00 NA 18R NA 2/14/2011 13.74 --- 0.00 --- 18.74 0.00 NA 18R NA 2/21/2011 13.51 --- 0.00 --- 18.74 0.00 NA 19R 985.30 1/31/2011 13.59 --- 0.00 --- 20.33 0.00 971.71 19R 985.30 2/7/2011 13.53 --- 0.00 --- 20.33 0.00 971.77 19R 985.30 2/14/2011 13.79 --- 0.00 --- 20.34 0.00 971.51 19R 985.30 2/21/2011 13.54 --- 0.00 --- 20.35 0.00 971.76 25R 997.47 1/31/2011 21.72 21.71 0.01 --- 30.50 0.00 975.76 25R 997.47 2/7/2011 21.91 --- 0.00 --- 30.49 0.00 975.56 25R 997.47 2/14/2011 22.18 22.17 0.01 --- 30.50 0.00 975.30 25R 997.47 2/21/2011 22.27 22.26 0.01 --- 30.49 0.00 975.21

26RR 1,000.58 2/11/2011 23.69 23.54 0.15 --- 28.30 0.00 977.03 29 991.59 1/31/2011 18.67 18.66 0.01 --- 21.48 0.00 972.93 29 991.59 2/7/2011 18.71 18.70 0.01 --- 21.48 0.00 972.89 29 991.59 2/14/2011 18.91 18.90 0.01 --- 21.49 0.00 972.69 29 991.59 2/21/2011 18.86 18.85 0.01 --- 21.50 0.00 972.74 30 989.34 2/11/2011 13.44 13.32 0.12 --- 22.37 0.00 976.01 37 980.37 2/28/2011 Well covered by 12-14 feet of snow and ice. NA NA NA

40R 991.60 2/11/2011 Dry at 12.49 feet BMP NA NA NA 48 992.39 2/11/2011 18.30 16.31 1.99 --- 22.48 0.00 975.94

49R 988.71 2/10/2011 16.19 --- 0.00 --- 24.88 0.00 972.52 49RR 989.80 2/10/2011 17.26 --- 0.00 --- 22.93 0.00 972.54

55 985.97 2/11/2011 14.96 13.62 1.34 --- 26.54 0.00 972.26 64R 993.37 2/3/2011 16.38 16.37 0.01 --- 20.50 0.00 977.00 64R 993.37 2/10/2011 16.32 16.30 0.02 --- 20.50 0.00 977.07 64R 993.37 2/16/2011 16.60 16.59 0.01 --- 20.50 0.00 976.78 64R 993.37 2/24/2011 16.51 16.50 0.01 --- 20.50 0.00 976.87 64S 984.48 2/3/2011 19.22 --- 0.00 --- 28.70 0.00 965.26 64S 984.48 2/10/2011 19.56 --- 0.00 --- 28.70 0.00 964.92 64S 984.48 2/16/2011 19.43 --- 0.00 --- 28.70 0.00 965.05 64S 984.48 2/24/2011 19.46 --- 0.00 --- 28.70 0.00 965.02

64S-Caisson NA 2/3/2011 10.61 10.55 0.06 --- 14.55 0.00 NA 64S-Caisson NA 2/10/2011 10.54 10.52 0.02 --- 14.55 0.00 NA 64S-Caisson NA 2/16/2011 10.56 10.55 0.01 --- 14.55 0.00 NA 64S-Caisson NA 2/24/2011 10.54 10.52 0.02 --- 14.55 0.00 NA

64V 987.29 2/3/2011 20.99 20.82 0.17 P 29.60 < 0.01 966.46 64V 987.29 2/10/2011 21.90 21.67 0.23 P 29.60 < 0.01 965.60 64V 987.29 2/16/2011 20.93 20.64 0.29 P 29.60 < 0.01 966.63 64V 987.29 2/24/2011 21.10 20.54 0.56 P 29.60 < 0.01 966.71

64X(N) 984.83 2/3/2011 12.18 12.16 0.02 --- 15.85 0.00 972.67 64X(N) 984.83 2/10/2011 12.20 12.18 0.02 --- 15.85 0.00 972.65 64X(N) 984.83 2/16/2011 12.24 12.22 0.02 --- 15.85 0.00 972.61 64X(N) 984.83 2/24/2011 12.44 12.42 0.02 --- 15.85 0.00 972.41 64X(S) 981.56 2/3/2011 15.66 15.63 0.03 --- 23.82 0.00 965.93 64X(S) 981.56 2/10/2011 16.84 16.81 0.03 --- 23.82 0.00 964.75 64X(S) 981.56 2/16/2011 15.86 15.79 0.07 --- 23.82 0.00 965.77 64X(S) 981.56 2/24/2011 16.62 16.57 0.05 --- 23.82 0.00 964.99 64X(W) 984.87 2/3/2011 18.95 18.94 0.01 --- 24.35 0.00 965.93

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February 2011

Well Name


(feet) Date



LNAPL Thickness

(feet)


Total Depth

(ft BMP)

DNAPL Thickness

(feet)


(feet) 64X(W) 984.87 2/10/2011 18.87 18.86 0.01 --- 24.35 0.00 966.01 64X(W) 984.87 2/16/2011 19.00 18.96 0.04 --- 24.35 0.00 965.91 64X(W) 984.87 2/24/2011 18.89 18.87 0.02 --- 24.35 0.00 966.00 95-01R 986.21 2/11/2011 14.23 --- 0.00 --- 19.60 0.00 971.98

95-04RR 987.75 2/11/2011 15.76 15.66 0.10 --- 19.59 0.00 972.08 3-6C-EB-22 986.94 2/11/2011 14.28 --- 0.00 --- 19.38 0.00 972.66 E2SC-03I* 982.12 2/22/2011 9.80 --- 0.00 39.24 45.24 6.00 972.32 E2SC-06 986.00 2/22/2011 12.37 --- 0.00 --- 20.04 0.00 973.63 E2SC-23 992.07 2/10/2011 17.49 --- 0.00 --- 21.15 0.00 974.58 E2SC-24 987.90 2/10/2011 16.06 --- 0.00 --- 21.64 0.00 971.84 ES2-15R 986.20 1/31/2011 15.62 13.16 2.46 --- 19.48 0.00 972.87 ES2-15R 986.20 2/7/2011 15.81 13.10 2.71 --- 19.48 0.00 972.91 ES2-15R 986.20 2/14/2011 16.08 13.32 2.76 --- 19.49 0.00 972.69 ES2-15R 986.20 2/21/2011 15.98 13.20 2.78 --- 19.50 0.00 972.81 GMA1-14 997.43 1/31/2011 19.79 19.78 0.01 --- 22.49 0.00 977.65 GMA1-14 997.43 2/7/2011 19.99 19.98 0.01 --- 22.50 0.00 977.45 GMA1-14 997.43 2/14/2011 20.33 20.32 0.01 --- 22.50 0.00 977.11 GMA1-14 997.43 2/21/2011 20.41 20.40 0.01 --- 22.50 0.00 977.03 GMA1-15 988.59 1/31/2011 17.53 16.18 1.35 --- 17.78 0.00 972.32 GMA1-15 988.59 2/7/2011 17.40 16.21 1.19 --- 17.78 0.00 972.30 GMA1-15 988.59 2/14/2011 17.70 16.37 1.33 --- 17.79 0.00 972.13 GMA1-15 988.59 2/21/2011 17.02 16.18 0.84 --- 17.80 0.00 972.35 GMA1-16 986.82 2/10/2011 13.52 13.44 0.08 --- 19.98 0.00 973.37

GMA1-17E 993.03 2/10/2011 16.61 16.56 0.05 --- 17.29 0.00 976.47 GMA1-17W 992.63 2/3/2011 21.95 21.93 0.02 --- NM 0.00 970.70 GMA1-17W 992.63 2/10/2011 NM NM NM NM NM NM NM GMA1-17W 992.63 2/16/2011 NM NM NM NM NM NM NM GMA1-17W 992.63 2/24/2011 NM NM NM NM NM NM NM GMA1-19 984.28 1/31/2011 12.53 12.14 0.39 --- 17.14 0.00 972.11 GMA1-19 984.28 2/7/2011 12.28 12.13 0.15 --- 17.15 0.00 972.14 GMA1-19 984.28 2/14/2011 12.56 12.41 0.15 --- 17.15 0.00 971.86 GMA1-19 984.28 2/21/2011 12.42 12.20 0.22 --- 17.15 0.00 972.06

GMA1-20R 984.31 1/31/2011 12.58 --- 0.00 --- 20.05 0.00 971.73 GMA1-20R 984.31 2/7/2011 12.49 --- 0.00 --- 20.04 0.00 971.82 GMA1-20R 984.31 2/14/2011 12.77 --- 0.00 --- 20.05 0.00 971.54 GMA1-20R 984.31 2/21/2011 12.54 --- 0.00 --- 20.04 0.00 971.77 GMA1-21 985.68 1/31/2011 13.68 --- 0.00 --- 19.54 0.00 972.00 GMA1-21 985.68 2/7/2011 13.54 --- 0.00 --- 19.55 0.00 972.14 GMA1-21 985.68 2/14/2011 13.79 --- 0.00 --- 19.55 0.00 971.89 GMA1-21 985.68 2/21/2011 13.52 --- 0.00 --- 19.54 0.00 972.16 GMA1-22 988.45 1/31/2011 16.04 --- 0.00 --- 19.15 0.00 972.41 GMA1-22 988.45 2/7/2011 15.94 --- 0.00 --- 19.15 0.00 972.51 GMA1-22 988.45 2/14/2011 16.18 --- 0.00 --- 19.15 0.00 972.27 GMA1-22 988.45 2/21/2011 15.92 --- 0.00 --- 19.15 0.00 972.53

GMA1-23R 985.67 1/31/2011 13.53 --- 0.00 --- 19.61 0.00 972.14 GMA1-23R 985.67 2/7/2011 13.53 --- 0.00 --- 19.61 0.00 972.14 GMA1-23R 985.67 2/14/2011 13.80 --- 0.00 --- 19.60 0.00 971.87 GMA1-23R 985.67 2/21/2011 13.55 --- 0.00 --- 19.60 0.00 972.12 GMA1-24R 985.40 1/31/2011 13.58 --- 0.00 --- 20.16 0.00 971.82 GMA1-24R 985.40 2/7/2011 13.52 --- 0.00 --- 20.16 0.00 971.88 GMA1-24R 985.40 2/14/2011 13.77 --- 0.00 --- 20.15 0.00 971.63 GMA1-24R 985.40 2/21/2011 13.53 --- 0.00 --- 20.14 0.00 971.87 GMA1-30 985.45 2/10/2011 14.04 --- 0.00 --- 20.15 0.00 971.41

HR-G2-MW-1 982.60 2/10/2011 11.42 --- 0.00 --- 18.25 0.00 971.18 HR-G2-MW-2 981.39 2/10/2011 8.83 --- 0.00 --- 17.67 0.00 972.56 HR-G2-MW-3 987.14 2/10/2011 15.27 --- 0.00 --- 21.45 0.00 971.87 HR-G2-RW-1 976.88 2/10/2011 6.69 --- 0.00 --- 18.71 0.00 971.88 ESA2S-PZ-1 985.04 1/31/2011 14.95 12.90 2.05 --- 23.77 0.00 972.00 ESA2S-PZ-1 985.04 2/7/2011 14.65 12.89 1.76 --- 23.78 0.00 972.03 ESA2S-PZ-1 985.04 2/14/2011 15.11 13.11 2.00 --- 23.78 0.00 971.79 ESA2S-PZ-1 985.04 2/21/2011 14.76 12.91 1.85 --- 23.78 0.00 972.00 ESA2S-PZ-2 984.30 1/31/2011 12.73 12.36 0.37 --- 22.22 0.00 971.91

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February 2011

Well Name


(feet) Date



LNAPL Thickness

(feet)


Total Depth

(ft BMP)

DNAPL Thickness

(feet)


(feet) ESA2S-PZ-2 984.30 2/7/2011 12.58 12.36 0.22 --- 22.23 0.00 971.92 ESA2S-PZ-2 984.30 2/14/2011 12.68 12.66 0.02 --- 22.23 0.00 971.64 ESA2S-PZ-2 984.30 2/21/2011 12.54 12.43 0.11 --- 22.24 0.00 971.86 ESA2S-PZ-3 986.62 1/31/2011 14.73 --- 0.00 --- 24.40 0.00 971.89 ESA2S-PZ-3 986.62 2/7/2011 14.73 --- 0.00 --- 24.40 0.00 971.89 ESA2S-PZ-3 986.62