FEBRUARY 2015 MONTHLY STATUS REPORT PURSUANT TO …Transmitted via Overnight Courier March 9, 2015 Mr. Dean Tagliaferro U.S. Environmental Protection Agency ... 24A. On-Plant Consolidation

Transmitted via Overnight Courier

March 9, 2015

Mr. Dean Tagliaferro U.S. Environmental Protection Agency Region I -New England c/o Weston Solutions, Inc. I 0 Lyman Street, Suite 2 Pittsfield, MA 0120 I

(Hard copy and CD-ROM of report)

Re: GE-Pittsfield/Housatonic River Site

GE Corporate

159 Plastics Avenue Pittsfield, MA 01201

USA

Mr. Michael Gorski Regional Director Western Regional Office Department of Environmental Protection 436 Dwight Street Springfield, MA 01103

(Hard copy of cover letter and CD-ROM of report)

Monthly Status Report Pursuant to Consent Decree February 2015 (GECD900)

Dear Mr. Tagliaferro and Mr. Gorski:

Enclosed are copies of General Electric's (GE's) monthly progress report for February 2015 actJVJtJes conducted by GE at the GE-Pittsfield/Housatonic River Site. This monthly report 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 report 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.

The enclosed monthly report 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.

Please call me if you have any questions.

Sincerely,

~~LcJ&-~~ Richard Gates [..4--<__

Senior Project M :n ger Global Operations -Environment, Health and Safety

Enclosure

Corporate Envll'onmental Programs

cc: Richard Fisher, EPA Robert Cianciarulo, EPA (cover letter only) Tim Conway, EPA (cover letter only) Dave Dickerson, EPA (cover letter and Items 7 and 20)

Mr. Dean Tagliaferro and Mr. Michael Gorski March 9, 2015

Page 2 of2

Chris Ferry, ASRC Primus (cover letter and CD-ROM of report) Scott Campbell, Avatar Environmental (hard copy and CD-ROM of report) Robert Leitch, USACE (CD-ROM of report) John Ziegler, MDEP (cover letter and CD-ROM of report) Eva Tor, MDEP (cover letter via email) Karen Pelto, MDEP (CD-ROM of report) Nancy E. Harper, MA AG (cover letter only) Susan Peterson, CT DEEP (hard copy and CD-ROM of report) Field Supervisor, US FWS, DOl Kenneth Finkelste in, Ph.D., NOAA (cover letter and Items 13, 14, and 15) Nate Joyner, City of Pittsfield (cover letter and CD-ROM of report) Corydon L. Thurston, Director, Pittsfield Economic Development Authority Greg Hencir, AECOM (CD-ROM of report) Jack Yablonsky, Berkshire Gas (CD-ROM of report) Richard Nasman, P.E., Berkshire Gas (cover letter only) Andrew Silfer, GE (cover letter only) Rod McLaren, GE (CD-ROM of report) James Nuss, ARCADIS James Bieke, Sidley Austin Kevin Russell, Anchor QEA (narrative only) Public Information Repositories ( I hard copy, 5 copies ofCD-ROM) GE Internal Repository (I hard copy)

(w/o separate CD-ROM, except where noted)

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2015\02-15\Monthly Background.doc

February 2015

MONTHLY STATUS REPORT

PURSUANT TO CONSENT DECREE

FOR GE-PITTSFIELD/HOUSATONIC RIVER SITE

GENERAL ELECTRIC COMPANY

PITTSFIELD, MASSACHUSETTS


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) 24A. On-Plant Consolidation Areas, Post-Closure Program 25. Former Oxbows A&C (GECD350)

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2015\02-15\Final CD Monthly Text.docx

GENERAL ACTIVITIES GE-PITTSFIELD/HOUSATONIC RIVER SITE

(GECD900) FEBRUARY 2015

a. Activities Undertaken/Completed

- Continued GE-EPA electronic data exchanges for the Housatonic River Watershed. - Completed development of GE’s Storm Water Pollution Prevention Plan (SWPPP) revisions for

2015.

- Completed development of GE’s Best Management Practices (BMP) Summary Report summarizing the activities conducted under the BMP Plan (in the NPDES Permit) and the SWPPP in 2014.

b. 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.

c. Work Plans/Reports/Documents Submitted

- Submitted NPDES Discharge Monitoring Reports (DMRs) for the period of January 1 through January 31, 2015 to EPA and MDEP (February 26, 2015).

- Submitted GE’s SWPPP revisions for 2015 to EPA and MDEP (February 26, 2015).

- Submitted GE’s BMP Summary Report summarizing the activities conducted under the BMP Plan (in the NPDES Permit) and the SWPPP in 2014 to EPA and MDEP (February 26, 2015).

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.

- Submit copies of GE’s Annual Report to EPA, MDEP, and the Connecticut Department of

Energy and Environmental Protection pursuant to Paragraph 84 of CD.*

- Submit semi-annual notice of off-site waste shipments (in April 2015).* e. General Progress/Unresolved Issues/Potential Schedule Impacts

No issues. f. Proposed/Approved Work Plan Modifications

None


ITEM 2 PLANT AREA

EAST STREET AREA 2-SOUTH (GECD150)

FEBRUARY 2015


Conducted Liquid-Phase Carbon Absorption (LPCA) sampling at the Building 64G Groundwater Treatment Facility (GWTF), as indicated in Table 2-1.


None

c. Work Plans/Reports/Documents Submitted None

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

None e. General Progress/Unresolved Issues/Potential Schedule Impacts

GE will finalize and record a new easement from GE to the City of Pittsfield for a City pipeline in this area, together with termination of a prior easement, following receipt of the signed easement documents from the City.

f. Proposed/Approved Work Plan Modifications

None

TABLE 2-1DATA RECEIVED AND/OR SAMPLES COLLECTED DURING FEBRUARY 2015

EAST STREET AREA 2 - SOUTHGENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS

Project Name Field Sample ID Sample Date Matrix Laboratory Analyses

Date Received by GE or ARCADIS

Building 64G LPCA Monitoring INF-FEB15B-64G-PCB 2/22/15 Water SGS PCBBuilding 64G LPCA Monitoring PortA-FEB15B-64G-PCB 2/22/15 Water SGS PCBBuilding 64G LPCA Monitoring PortB-FEB15B-64G-PCB 2/22/15 Water SGS PCBBuilding 64G LPCA Monitoring PortC-FEB15B-64G-PCB 2/22/15 Water SGS PCBBuilding 64G LPCA Monitoring PortD-FEB15B-64G-PCB 2/22/15 Water SGS PCB CancelledBuilding 64G LPCA Monitoring PortD-FEB15B-64G-PCB 2/26/15 Water SGS PCB

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2015\02-15\Tracking Logs\Tracking.xlsm - TABLE 2-1 1 of 1 3/9/2015


ITEM 3

PLANT AREA EAST STREET AREA 2-NORTH



- Continued demolition of Buildings 12T, 100A, and 100B and related construction activities.

- Performed ambient air monitoring for particulate matter and PCBs in connection with Building

12T, 100A, and 100B demolition activities, as indicated in Table 3-1.

- Performed equipment wipe sampling in connection with Buildings 12T, 100A, and 100B demolition activities, as indicated in Table 3-1.


See attached tables.



Continue demolition of Buildings 12T, 100A and 100B and related construction activities. e. General Progress/Unresolved Issues/Potential Schedule Impacts

Review of the Pittsfield Economic Development Authority’s (PEDA’s) draft of a Revised ERE for the former 19s Complex (transmitted to EPA and MDEP on November 12, 2012) by EPA and MDEP is on hold pending PEDA’s providing more information on redevelopment activities.*


None


EAST STREET AREA 2 - NORTHGENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS



Buildings 12T, 100A and 100B Demolition - Equipment Wipe Sampling CC-W1-022715 2/27/15 Wipe SGS PCBBuildings 12T, 100A and 100B Demolition - Equipment Wipe Sampling CC-W2-022715 2/27/15 Wipe SGS PCBBuildings 12T, 100A and 100B Demolition - Equipment Wipe Sampling CC-W3-022715 2/27/15 Wipe SGS PCBBuildings 12T, 100A and 100B Demolition - Equipment Wipe Sampling Shear-W1-022015 2/20/15 Wipe SGS PCB 2/27/15Buildings 12T, 100A and 100B Demolition - Equipment Wipe Sampling Shear-W2-022015 2/20/15 Wipe SGS PCB 2/27/15Buildings 12T, 100A and 100B Demolition - Equipment Wipe Sampling Shear-W3-022015 2/20/15 Wipe SGS PCB 2/27/15

Catch Basin Sediment Sampling A7247 1/15/15 Soil SGS PCB, TCLP 2/12/15Ambient Air Particulate Matter Sampling ES2N-8 1/30/2015 Air Berkshire Environmental Particulate Matter 2/2/15Ambient Air Particulate Matter Sampling ES2N-9 1/30/2015 Air Berkshire Environmental Particulate Matter 2/2/15Ambient Air Particulate Matter Sampling Background 1/30/2015 Air Berkshire Environmental Particulate Matter 2/2/15Ambient Air Particulate Matter Sampling ES2N-8 2/2/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-9 2/2/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/2/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-8 2/3/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-9 2/3/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/3/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-8 2/4/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-9 2/4/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/4/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-8 2/5/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-9 2/5/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/5/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-8 2/6/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-9 2/6/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/6/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling ES2N-8 2/9/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling ES2N-9 2/9/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling Background 2/9/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling ES2N-8 2/10/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling ES2N-9 2/10/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling Background 2/10/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling ES2N-8 2/11/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling ES2N-9 2/11/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling Background 2/11/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling ES2N-8 2/12/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling ES2N-9 2/12/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling Background 2/12/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling ES2N-8 2/13/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling ES2N-9 2/13/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling Background 2/13/2015 Air Berkshire Environmental Particulate Matter 2/16/15



EAST STREET AREA 2 - NORTHGENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS



Ambient Air Particulate Matter Sampling ES2N-8 2/17/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling ES2N-9 2/17/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling Background 2/17/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling ES2N-8 2/18/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling ES2N-9 2/18/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling Background 2/18/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling ES2N-8 2/19/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling ES2N-9 2/19/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling Background 2/19/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling ES2N-8 2/20/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling ES2N-9 2/20/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling Background 2/20/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling ES2N-8 2/23/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling ES2N-9 2/23/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling Background 2/23/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling ES2N-8 2/24/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling ES2N-9 2/24/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling Background 2/24/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling ES2N-8 2/25/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling ES2N-9 2/25/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling Background 2/25/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling ES2N-8 2/26/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling ES2N-9 2/26/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling Background 2/26/2015 Air Berkshire Environmental Particulate Matter 2/27/15

PCB Ambient Air Sampling ES2N-8 02/10/15-02/11/15 Air PACE PCB 2/18/15PCB Ambient Air Sampling ES2N-9 02/10/15-02/11/15 Air PACE PCB 2/18/15PCB Ambient Air Sampling ES2N-9CO (colocated) 02/10/15-02/11/15 Air PACE PCB 2/18/15PCB Ambient Air Sampling Background (BK-4) 02/10/15-02/11/15 Air PACE PCB 2/18/15


TABLE 3-2PCB DATA RECEIVED DURING FEBRUARY 2015

CATCH BASIN SEDIMENT SAMPLINGEAST STREET AREA 2 - NORTH

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

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

A7247 1/15/2015 ND(0.35) 6.0 5.1 11.1

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 3-3 for a summary of TCLP constituents.3. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2015\02-15\Analytical Data Tables\

Tables.xlsx - 3-2 Page 1 of 1 3/9/2015

TABLE 3-3TCLP DATA RECEIVED DURING FEBRUARY 2015

CATCH BASIN SEDIMENT SAMPLINGEAST STREET AREA 2 - NORTH

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

TCLPSample ID: Regulatory A7247

Parameter Date Collected: Limits 1/15/2015Volatile Organics1,1-Dichloroethene 0.7 ND(0.010)1,2-Dichloroethane 0.5 ND(0.010)1,4-Dichlorobenzene 7.5 ND(0.010)2-Butanone 200 0.046 JBenzene 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 Organics1,4-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)2-Methylphenol 200 ND(0.050)3&4-Methylphenol 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(0.050)Pyridine 5 ND(0.050)InorganicsArsenic 5 0.0268 BBarium 100 0.498 BCadmium 1 ND(0.0500)Chromium 5 0.00880 BLead 5 0.0585 BMercury 0.2 0.0000898 BSelenium 1 ND(0.200)Silver 5 ND(0.100)

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 3-2 for analysis of PCBs.3. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.

Data Qualifiers:

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

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




BUILDINGS 12T, 100A AND 100B DEMOLITION - EQUIPMENT WIPE SAMPLINGEAST STREET AREA 2 - NORTH

GENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS(Results are presented in g/100cm2)

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

Shear-W1-022015 2/20/2015 ND(1.0) ND(1.0) ND(1.0) ND(1.0)Shear-W2-022015 2/20/2015 ND(1.0) 0.55 J ND(1.0) 0.55 JShear-W3-022015 2/20/2015 ND(1.0) 0.56 J 0.56 J 1.12 J

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

analysis of PCBs.2. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.

Data Qualifiers:J - Indicates an estimated value less than the practical quantitation limit (PQL).



TABLE 3-5AMBIENT AIR PARTICULATE MATTER DATA RECEIVED DURING FEBRUARY 20151

BUILDINGS 100-A AND 100-B AND 12-T COMPLEX DEMOLITIONEAST STREET AREA 2 - NORTH

GENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS

Sampling Date2 Sampler LocationAverage Period

(Hours:Min)3Predominant Wind

Direction

01/30/15 ES2N-8 0.010 * 0.010 10:00 WNWES2N-9 0.014 10:00

02/02/15 ES2N-8 0.008 * 0.118 4 10:00 ENE

ES2N-9 0.005 * 5:155

02/03/15 ES2N-8 0.018 * 0.009 10:00 WNWES2N-9 0.011 10:00

02/04/15 ES2N-8 0.035 * 0.033 10:00 VariableES2N-9 0.042 10:00

02/05/15 ES2N-8 0.007 * 0.011 10:00 NNWES2N-9 0.020 10:00

02/06/15 ES2N-8 0.010 * 0.010 10:00 WSWES2N-9 0.048 10:00

02/09/15 ES2N-8 0.006 * 0.045 10:15 ENEES2N-9 0.053 10:00

02/10/15 ES2N-8 0.006 * 0.003 9:30 VariableES2N-9 0.008 10:00

02/11/15 ES2N-8 0.013 * 0.013 10:15 CalmES2N-9 0.025 10:00

02/12/15 ES2N-8 0.018 * 0.023 10:00 WNWES2N-9 0.026 10:00

02/13/15 ES2N-8 0.008 * 0.008 10:30 WNWES2N-9 0.038 10:00

02/17/15 ES2N-8 0.011 * 0.006 10:30 CalmES2N-9 0.016 10:00

02/18/15 ES2N-8 0.020 * 0.018 10:00 CalmES2N-9 0.030 10:00

02/19/15 ES2N-8 0.015 * 0.030 9:45 WNWES2N-9 0.049 10:00

02/20/15 ES2N-8 0.009 * 0.010 9:45 WNWES2N-9 0.020 10:00

02/23/15 ES2N-8 0.007 * 0.007 10:15 WNWES2N-9 0.028 10:00

02/24/15 ES2N-8 0.014 * 0.013 10:00 VariableES2N-9 0.052 10:00

02/25/15 ES2N-8 0.019 * 0.020 10:00 WES2N-9 0.041 10:00

02/26/15 ES2N-8 0.013 * 0.010 9:45 CalmES2N-9 0.024 10:00

0.120

Notes:

* Measured with a DR-4000 1 Monitoring was performed only on days when site activities occurred.2 The particulate monitors obtain real-time data. The sampling data were obtained by Berkshire Environmental Consultants, Inc. on the sampling date.

5 Shortened sampling period. Original monitor was replaced midday because of inaccurate readings due to significant snowstorm.

3 Average period represents sampling from 6:45 AM to 4:45 PM (workday schedule from 7:30 AM to 4:00 PM).

Average Site Concentration

(mg/m3)

Background Site Concentration

(mg/m3)

Notification Level

All concentrations measured with an EBAM unless otherwise noted.

Predominant wind direction determined using hourly wind direction data from the Pittsfield Municipal Airport Weather Station.

4 Concentration elevated due to significant snowstorm.



TABLE 3-6AMBIENT AIR PCB DATA RECEIVED DURING FEBRUARY 2015

BUILDINGS 100-A AND 100-B AND 12-T COMPLEX DEMOLITIONEAST STREET AREA 2 - NORTH


Sampling Event Period

Date Analytical Results Received by

Berkshire Environmental

Consultants, Inc.

Field Blank (µg/PUF)

ES2N-8

(µg/m3)

ES2N-9

(µg/m3)

ES2N-9CO (colocated)

(µg/m3)

Background (BK-4)

(µg/m3)

02/10/15-02/11/15 02/16/15 ND (<0.10) 0.0017 0.0008 0.0008 ND

0.05 0.05 0.05 0.05

Note:ND - Non-Detect

Notification Level




ITEM 5

PLANT AREA HILL 78 & BUILDING 71 CONSOLIDATION

AREAS (GECD210/220)

FEBRUARY 2015

* All activities described below for this item were conducted pursuant to the Consent Decree. a. Activities Undertaken/Completed

No leachate was transferred from the Building 71 On-Plant Consolidation Area (OPCA) to the Building 64G Groundwater Treatment Facility (GWTF) for treatment during February 2015 (see Table 5-1).

b. Sampling/Test Results Received None c. Work Plans/Reports/Documents Submitted

Submitted letter to EPA that summarized swale repair construction activities completed at the Hill 78 OPCA in November 2014 and provided an updated OPCA inspection figure and checklist form from the final Revised Post Removal Site Control Plan (February 12, 2015).


None

e. General Progress/Unresolved Issues/Potential Schedule Impacts

Certain remaining maintenance/repair activities identified during the summer 2014 OPCA inspection were postponed until spring 2015 for seasonal reasons. These include woodchuck trapping and filling and seeding of woodchuck burrow holes.


None

TABLE 5-1BUILDING 71 CONSOLIDATION AREA LEACHATE TRANSFER SUMMARY

PLANT AREA - HILL 78 & BUILDING 71 CONSOLIDATION AREAS

CONSENT DECREE MONTHLY STATUS REPORTGENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS

Total Volume ofLeachate Transferred

Month / Year (Gallons)

February 2014 0

March 2014 0

April 2014 5,000

May 2014 0

June 2014 6,000

July 2014 0

August 2014 4,000

September 2014 0

October 2014 0

November 2014 6,000

December 2014 0

January 2015 0

February 2015 0

Note:

Consolidation Area to Building 64G for treatment.1. Leachate is transferred from the Building 71 On-Plant

February 2015

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Page 1 of 13/9/2015


ITEM 6

PLANT AREA HILL 78 AREA - REMAINDER



None

b. Sampling/Test Results Received See attached tables. c. Work Plans/Reports/Documents Submitted

None


None



None


HILL 78 AREA-REMAINDERGENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS

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

NPDES Permit YD-13 Outfall Sampling YD-13-011815 1/18/15 Water ALS Oil & Grease 2/3/15NPDES Permit YD-13 Outfall Sampling YD-13-011815 1/18/15 Water ALS TSS, Total Zinc 2/3/15


TABLE 6-2DATA RECEIVED DURING FEBRUARY 2015

NPDES PERMIT YD-13 OUTFALL SAMPLINGHILL 78 AREA-REMAINDER


Sample ID: YD-13-011815Parameter Date Collected: 01/18/15Inorganics-UnfilteredZinc ND(0.0200)ConventionalOil & Grease ND(4.1)Total Suspended Solids 2.60

Notes:

1. Sample was collected by ARCADIS and submitted to ALS Environmental for analysis of zinc, oil and grease and total suspended solids.

2. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.




ITEM 7

PLANT AREA UNKAMET BROOK AREA



- Continued phragmites removal work at Unkamet Brook Area as authorized by EPA’s November

21, 2014 conditional approval letter for GE’s Supplemental Information Package (SIP).*

- Continued tree clearing as needed between Dalton Avenue and Merrill Road.*

- Continued constructing and installing 24-inch stream bypass pipe between Dalton Avenue and Culvert #1.*

- In connection with the above removal activities at Unkamet Brook Area, performed ambient air

monitoring for particulate matter and PCBs, as indicated in Table 7-1.*

- Notified EPA and MDEP verbally, pursuant to Paragraph 8 (Emergency Excavation) of the September 2014 Grant of Environmental Restriction and Easement (ERE) for the Building OP-1 and OP-2 area (portion of Parcel K11-7-2), of an emergency excavation being performed by General Dynamics to find and repair a fire protection water main break in the roadway just north of Building OP-1 (February 27, 2015).*

- Conducted communications with EPA regarding GE’s SIP Addendum, submitted to EPA on December 12, 2014.*

- Continued work on drafting a Post-Removal Site Control Plan/Restoration Project Monitoring and Maintenance Plan.*


See attached tables. c. Work Plans/Reports/Documents Submitted

- Provided to EPA and MDEP a draft Notice ERE for the Berkshire Community College (BCC) property (Parcel L12-2-1) (February 12, 2015).*

- Following verbal notification (see Item 7.a above), submitted electronic notification to

EPA and MDEP, pursuant to Paragraph 8 of the ERE for the Building OP-1 and OP-2 area, regarding the emergency excavation to find and repair a fire protection water main break in the roadway just north of Building OP-1 (February 27, 2015).*


ITEM 7 (cont’d)

PLANT AREA UNKAMET BROOK AREA



- Continue and complete phragmites removal work as authorized by EPA’s November 21, 2014 conditional approval letter, subject to weather constraints.*

- Continue tree clearing as needed between Dalton Avenue and Merrill Road.*

- Receive EPA’s approval of GE’s SIP Addendum, submitted to EPA on December 12, 2014.*

- Submit final documentation and post-work notification form to MDEP for the completion of the emergency excavation in the roadway just north of Building OP-1 to find and repair a fire protection water main break.*

- Continue constructing and installing 24-inch stream bypass pipe between Dalton Avenue and

Culvert #1.*

- Prepare for/begin sediment removal (in the wet) at the Dalton Avenue culvert.*

- Begin constructing soil/sediment staging area within parking lot.*

- Provide to EPA and MDEP a draft ERE for GE-owned Parcel K12-9-1, and an identification of the encumbrance holders at that property.*

- Provide to EPA and MDEP a draft Conservation Easement and Restriction for the wetlands east

of the former Unkamet Brook interior landfill within Parcel K12-9-1, and an identification of the encumbrance holders at that area.*

- Complete and submit a Post-Removal Site Control Plan/Restoration Project Monitoring and

Maintenance Plan.* e. General Progress/Unresolved Issues/Potential Schedule Impacts

No issues.

f. Proposed/Approved Work Plan Modifications None


UNKAMET BROOK AREAGENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS


Ambient Air Particulate Matter Sampling UB-1 1/30/2015 Air Berkshire Environmental Particulate Matter 2/2/15Ambient Air Particulate Matter Sampling UB-2 1/30/2015 Air Berkshire Environmental Particulate Matter 2/2/15Ambient Air Particulate Matter Sampling UB-4 1/30/2015 Air Berkshire Environmental Particulate Matter 2/2/15Ambient Air Particulate Matter Sampling Background 1/30/2015 Air Berkshire Environmental Particulate Matter 2/2/15Ambient Air Particulate Matter Sampling UB-1 2/2/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-2 2/2/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-4 2/2/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/2/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-1 2/3/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-2 2/3/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-4 2/3/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/3/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-1 2/4/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-2 2/4/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-4 2/4/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/4/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-1 2/5/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-2 2/5/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-4 2/5/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/5/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-1 2/6/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-2 2/6/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-4 2/6/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling Background 2/6/2015 Air Berkshire Environmental Particulate Matter 2/9/15Ambient Air Particulate Matter Sampling UB-1 2/9/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-2 2/9/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-4 2/9/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling Background 2/9/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-1 2/10/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-2 2/10/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-4 2/10/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling Background 2/10/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-1 2/11/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-2 2/11/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-4 2/11/2015 Air Berkshire Environmental Particulate Matter 2/16/15





Ambient Air Particulate Matter Sampling Background 2/11/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-1 2/12/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-2 2/12/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-4 2/12/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling Background 2/12/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-1 2/13/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-2 2/13/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-4 2/13/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling Background 2/13/2015 Air Berkshire Environmental Particulate Matter 2/16/15Ambient Air Particulate Matter Sampling UB-1 2/16/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-2 2/16/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-4 2/16/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling Background 2/16/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-1 2/17/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-2 2/17/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-4 2/17/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling Background 2/17/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-1 2/18/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-2 2/18/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-4 2/18/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling Background 2/18/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-1 2/20/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-2 2/20/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-4 2/20/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling Background 2/20/2015 Air Berkshire Environmental Particulate Matter 2/23/15Ambient Air Particulate Matter Sampling UB-1 2/23/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-2 2/23/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-4 2/23/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling Background 2/23/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-1 2/24/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-2 2/24/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-4 2/24/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling Background 2/24/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-1 2/25/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-2 2/25/2015 Air Berkshire Environmental Particulate Matter 2/27/15





Ambient Air Particulate Matter Sampling UB-4 2/25/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling Background 2/25/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-1 2/26/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-2 2/26/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling UB-4 2/26/2015 Air Berkshire Environmental Particulate Matter 2/27/15Ambient Air Particulate Matter Sampling Background 2/26/2015 Air Berkshire Environmental Particulate Matter 2/27/15

PCB Ambient Air Sampling UB-1CO (colocated) 02/17/15-02/18/15 Air PACE PCB 2/25/15PCB Ambient Air Sampling UB-2 02/17/15-02/18/15 Air PACE PCB 2/25/15PCB Ambient Air Sampling UB-4 02/17/15-02/18/15 Air PACE PCB 2/25/15PCB Ambient Air Sampling Background BK-3 02/17/15-02/18/15 Air PACE PCB 2/25/15



PARTICULATE AMBIENT AIR CONCENTRATIONSUNKAMET BROOK AREA




Direction

01/30/15 UB-1 0.011 0.009 * 10:15 WNW

UB-2 0.005 10:15

UB-4 0.007 10:15

02/02/15 UB-1 0.014 0.116 *410:30 ENE

UB-2 0.004 10:30

UB-4 0.005 10:30

02/03/15 UB-1 0.009 0.007 * 10:00 WNW

UB-2 0.004 10:15

UB-4 0.005 10:15

02/04/15 UB-1 0.035 0.028 * 10:00 Variable

UB-2 0.016 10:00

UB-4 0.026 10:00

02/05/15 UB-1 0.009 0.010 * 10:15 NNW

UB-2 0.004 10:00

UB-4 0.006 10:15

02/06/15 UB-1 0.016 0.011 * 10:00 WSW

UB-2 0.006 10:00

UB-4 0.010 10:00

02/09/15 UB-1 0.009 0.038 * 10:30 ENE

UB-2 0.003 10:30

UB-4 0.004 10:30

02/10/15 UB-1 0.005 0.004 * 10:00 Variable

UB-2 0.003 10:00

UB-4 0.004 10:00

02/11/15 UB-1 0.015 0.013 * 10:15 Calm

UB-2 0.008 10:30

UB-4 0.011 10:30

02/12/15 UB-1 0.021 0.020 * 10:00 WNW

UB-2 0.010 10:15

UB-4 0.016 10:00

02/13/15 UB-1 0.012 0.009 * 10:30 WNW

UB-2 0.006 10:30

UB-4 0.007 10:30

02/16/15 UB-1 0.009 0.007 * 10:30 WNW

UB-2 0.004 10:30

UB-4 0.006 10:30

02/17/15 UB-1 0.024 0.008 * 10:30 Calm

UB-2 0.008 10:30

UB-4 0.010 10:30

02/18/15 UB-1 0.017 0.018 ** 10:15 Calm

UB-2 0.010 10:15

UB-4 0.017 10:15

02/20/15 UB-1 0.008 0.012 * 10:00 WNW

UB-2 0.006 10:00

UB-4 0.008 10:00

02/23/15 UB-1 0.032 0.007 10:30 WNW

UB-2 0.005 10:30

UB-4 0.006 10:15


(mg/m3)


(mg/m3)




PARTICULATE AMBIENT AIR CONCENTRATIONSUNKAMET BROOK AREA




Direction


(mg/m3)


(mg/m3)

02/24/15 UB-1 0.012 0.010 * 9:45 Variable

UB-2 0.008 10:15

UB-4 0.010 10:15

02/25/15 UB-1 0.015 0.017 * 10:00 W

UB-2 0.010 10:00

UB-4 0.014 10:15

02/26/15 UB-1 0.017 0.009 * 10:00 Calm

UB-2 0.009 10:00

UB-4 0.008 10:00

0.120

Notes:

* Measured with an EBAM.

** Measured with an EBAM and a DR-4000.1 Monitoring was performed only on days when site activities occurred.2 The particulate monitors obtain real-time data. The sampling data were obtained by Berkshire Environmental Consultants, Inc. on the sampling date.3 Average period represents sampling from 6:45 AM to 4:45 PM (workday schedule from 7:30 AM to 4:00 PM).

Notification Level

All concentrations measured with a DR-4000 unless otherwise noted.

Predominant wind direction determined using hourly wind direction data from the Pittsfield Municipal Airport Weather Station.

4 Concentration elevated due to significant snowstorm.



TABLE 7-3AMBIENT AIR PCB DATA RECEIVED DURING FEBRUARY 2015

PCB AMBIENT AIR CONCENTRATIONSUNKAMET BROOK AREA


Sampling Event Period

Date Analytical Results Received by Berkshire

Environmental Consultants, Inc.

Field Blank (µg/PUF)

UB-1

(µg/m3)

UB-1CO(colocated)

(µg/m3)

UB-2

(µg/m3)

UB-4

(µg/m3)

BackgroundBK-3

(µg/m3)

02/17/15-02/18/15 02/23/15 ND (<0.10) 0.0004 0.0005 0.0004 0.0006 ND

0.05 0.05 0.05 0.05 0.05

Note:ND - Non-Detect

Notification Level




ITEM 8

FORMER OXBOW AREAS A&C (GECD410)

FEBRUARY 2015


None


None


d. Upcoming Scheduled and Anticipated Activities (next six weeks) Arrange for disposition of excess soil resulting from landowner excavation activities on Parcel I8-23-6.

e. General Progress/Unresolved Issues/Potential Schedule Impacts No issues.


None


ITEM 13

HOUSATONIC RIVER AREA UPPER ½ MILE REACH



None


None


None

d. Upcoming Scheduled and Anticipated Activities (next six weeks) None

e. General Progress/Unresolved Issues/Potential Schedule Impacts 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

HOUSATONIC RIVER AREA 1½ MILE REACH



On GE’s behalf, ARCADIS performed one round of water column monitoring at nine locations along the Housatonic River between Coltsville and Great Barrington on February 25, 2015. Two of the locations monitored 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 for analysis of PCBs (total) and total suspended solids (TSS), as identified in Table 14-1. (The other seven locations are discussed under Items 15 and 20 below.)


See attached tables. c. Work Plans/Reports/Documents Submitted

None


Continue Housatonic River water column monitoring. e. General Progress/Unresolved Issues/Potential Schedule Impacts

EPA has not to date approved GE’s Annual Monitoring Reports for 2013 or 2014.* f. Proposed/Approved Work Plan Modifications None


HOUSATONIC RIVER - 1 1/2 MILE REACHGENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS



Monthly Water Column Sampling Location-4 2/25/15 Water Pace PCB, TSSMonthly Water Column Sampling Location-4 1/30/15 Water Pace PCB, TSS 2/16/15Monthly Water Column Sampling Location-6A 1/29/15 Water Pace PCB, TSS 2/16/15Monthly Water Column Sampling Location-6A 2/25/15 Water Pace PCB, TSS


TABLE 14-2SAMPLE DATA RECEIVED DURING FEBRUARY 2015

MONTHLY WATER COLUMN SAMPLINGHOUSATONIC RIVER - 1 1/2 MILE REACH


Location: Lyman Street Bridge Pomeroy Ave. BridgeSample ID: LOCATION-4 LOCATION-6A

Parameter Date Collected: 01/30/15 01/29/15PCBs-UnfilteredAroclor-1221 0.000011 PB 0.000012 PBTotal PCBs 0.000011 0.000012ConventionalTotal Suspended Solids 1.60 4.60

Notes:

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

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. Only those constituents detected in one or more samples are summarized.

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.




ITEM 15

HOUSATONIC RIVER AREA REST OF THE RIVER



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 25, 2015. Two locations sampled 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 program was not sampled during this monitoring event as the location was inaccessible due to ice. Composite grab samples were collected at each sampled location and submitted for analysis of PCBs (total) and TSS, as identified in Table 15-1.

b. Sampling/Test Results



None

d. Upcoming Scheduled and Anticipated Activities (next six weeks) Continue Housatonic River monthly water column monitoring.



None


HOUSATONIC RIVER - REST OF RIVERGENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS



Monthly Water Column Sampling HR-D1 (Location-12) 1/29/15 Water Pace PCB, TSS 2/16/15Monthly Water Column Sampling HR-D1 (Location-12) 2/25/15 Water Pace PCB, TSSMonthly Water Column Sampling Location-1 1/30/15 Water Pace PCB, TSS 2/16/15Monthly Water Column Sampling Location-1 2/25/15 Water Pace PCB, TSSMonthly Water Column Sampling Location-12 1/29/15 Water Pace PCB, TSS 2/16/15Monthly Water Column Sampling Location-12 2/25/15 Water Pace PCB, TSSMonthly Water Column Sampling Location-13 2/25/15 Water Pace PCB, TSSMonthly Water Column Sampling Location-13 1/29/15 Water Pace PCB, TSS 2/16/15Monthly Water Column Sampling Location-2 2/25/15 Water Pace PCB, TSSMonthly Water Column Sampling Location-2 1/30/15 Water Pace PCB, TSS 2/16/15Monthly Water Column Sampling Location-7 2/25/15 Water Pace PCB, TSSMonthly Water Column Sampling Location-7 1/29/15 Water Pace PCB, TSS 2/16/15Monthly Water Column Sampling Location-9 1/29/15 Water Pace PCB, TSS 2/16/15Monthly Water Column Sampling Location-9 2/25/15 Water Pace PCB, TSS

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



MONTHLY WATER COLUMN SAMPLINGHOUSATONIC RIVER - REST OF RIVER


Location: Hubbard Avenue Bridge Newell Street Bridge Holmes Road Bridge New Lenox Road Bridge Schweitzer Bridge Division Street BridgeSample ID: LOCATION-1 LOCATION-2 LOCATION-7 LOCATION-9 LOCATION-12 LOCATION-13

Parameter Date Collected: 01/30/15 01/30/15 01/29/15 01/29/15 01/29/15 01/29/15PCBs-UnfilteredAroclor-1221 0.000010 PB 0.0000098 PB 0.0000098 PB 0.0000096 PB 0.000015 PB [0.000016 PB] 0.0000093 PBAroclor-1242 ND(0.0000055) 0.0000078 PD ND(0.0000055) ND(0.0000055) ND(0.0000055) [ND(0.0000055)] ND(0.0000055)Aroclor-1248 ND(0.0000055) ND(0.0000055) ND(0.0000055) 0.000013 PE 0.000017 PE [0.000018 PE] ND(0.0000055)Aroclor-1254 ND(0.0000055) ND(0.0000055) ND(0.0000055) 0.000012 AF 0.000010 AF [0.000011 AF] ND(0.0000055)Aroclor-1260 ND(0.0000055) ND(0.0000055) ND(0.0000055) 0.000022 AG 0.000017 AG [0.000017 AG] 0.0000074 AGTotal PCBs 0.000010 0.0000176 0.0000098 0.0000566 0.000059 [0.000062] 0.0000167ConventionalTotal Suspended Solids 1.41 1.90 3.70 1.53 1.40 [ND(1.02)] 1.20

Notes:

1. Samples were collected by ARCADIS, and submitted to Pace Analytical Services Inc. for analysis of PCBs (unfiltered) and total suspended solids (TSS).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 parentheses is the associated reporting limit.4. Field duplicate sample results are presented in brackets.5. Only those constituents detected in one or more samples are summarized.

Data Qualifiers:AF - Aroclor 1254 is being reported as the best Aroclor match. The sample exhibits an altered PCB pattern.AG - Aroclor 1260 is being reported as the best Aroclor match. The sample exhibits an altered PCB pattern.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.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. 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 18

HOUSATONIC RIVER FLOODPLAIN CURRENT RESIDENTIAL PROPERTIES

DOWNSTREAM OF CONFLUENCE (ACTUAL/POTENTIAL LAWNS)



Notified downstream floodplain property owners within this Removal Action Area of GE’s submission on February 6, 2015 of an Addendum to Revised Pre-Design Investigation Work Plan (PDI Work Plan Addendum) and provided them with copies of the relevant tables and figures relating to their properties.


None c. Work Plans/Reports/Documents Submitted

Submitted final PDI Work Plan Addendum to EPA (February 6, 2015). d. Upcoming Scheduled and Anticipated Activities (next six weeks)

Receive EPA approval of final PDI Work Plan Addendum.



None


ITEM 20 OTHER AREAS

SILVER LAKE AREA (GECD600)

FEBRUARY 2015


- On GE’s behalf, ARCADIS performed one round of water column monitoring at the Silver Lake

Outfall (Location 4A) on February 25, 2015.* A composite grab sample was collected and submitted for analysis of PCBs (total and dissolved) and TSS, as identified in Table 20-1. Select field measurements made during the February 26, 2015 water column monitoring event are summarized in Table 20-5.

- GE obtained a gauge reading at the Silver Lake Outfall on February 25, 2015 as part of the

Housatonic River monitoring program. The lake level and discharge information for the Silver Lake Outfall are presented in Table 20-6.

- GE continued preparation of an Annual Monitoring Report for 2014.*

- GE received from EPA a table summarizing EPA’s validated split sample results for Silver Lake surface water samples, for inclusion in the Annual Monitoring Report for 2014 (February 27, 2015).*




- GE submitted to EPA, in accordance with EPA’s conditional approval of GE’s December 29, 2014 cap monitoring report, a proposed plan for cap thickness testing in the vicinity of monitoring location SL-CAP-1 (February 3, 2015).*

- GE submitted to EPA a revised draft Final Completion Report for the Silver Lake Area Removal Action , which included revisions based on EPA’s comments on the April 2014 draft as well as updates based on activities since submission of that draft (February 20, 2015).*


- Receive EPA’s conditional approval of GE’s February 3, 2015 proposed plan for cap thickness testing in the vicinity of monitoring location SL-CAP-1.*

- Submit Annual Monitoring Report for 2014 to EPA (see Item 20.e below).*


ITEM 20 (cont’d)

OTHER AREAS SILVER LAKE AREA


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

- Subject to weather constraints, following EPA’s conditional approval of GE’s February 3, 2015

proposed plan for cap thickness testing in the vicinity of monitoring location SL-CAP-1, implement the cap thickness testing program.*


- Prior inspections of the natural resource restoration/enhancement measures in this area identified the need for filling the voids in the lower portion of the armor stone around the perimeter of the shrub-scrub island above the water surface elevation with topsoil and a wetland seed mix. This activity was postponed until spring 2015 to maximize the effectiveness of the seeding.*

- EPA agreed that time for submittal of the Annual Monitoring Report for 2014 would be deferred

until after GE received EPA’s validated split sample results for Silver Lake surface water samples.*


None


SILVER LAKE AREAGENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS



Monthly Water Column Sampling Location-4A 1/29/15 Water Pace PCB, PCB(f), TSS 2/16/15Monthly Water Column Sampling Location-4A 2/25/15 Water Pace PCB, PCB(f), TSS

Sediment Cap Thickness Measurement Soil Cutings & Sediment Sampling

A6594 1/15/15 Soil SGS PCB, TCLP 2/12/15



MONTHLY WATER COLUMN SAMPLINGSILVER LAKE AREA


Location: Silver Lake OutletSample ID: LOCATION-4A

Parameter Date Collected: 01/29/15PCBs-UnfilteredAroclor-1221 0.000060 PBAroclor-1242 0.000012 PDTotal PCBs 0.000072PCBs-FilteredAroclor-1221 0.000043 PBAroclor-1242 0.0000049 PD,JTotal PCBs 0.0000479ConventionalTotal Suspended Solids 1.30

Notes:

1. Sample was collected by ARCADIS, and submitted to Pace Analytical Services Inc. for analysis of PCBs and total suspended solids (TSS).

2. Sampling methods involved the collection of single grab at one location at 50 percent of the total river width, and 50 percent of the total river depth.

3. Only detected constituents are summarized.

Data Qualifiers:

J - Indicates an estimated value less than the practical quantitation limit (PQL).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. 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.




SEDIMENT CAP THICKNESS MEASUREMENT SOIL CUTINGS & SEDIMENT SAMPLINGSILVER LAKE AREA


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

A6594 1/15/2015 ND(0.95) 6.9 4.1 6.9 17.9

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 20-4 for a summary of TCLP constituents.3. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.



TABLE 20-4TCLP DATA RECEIVED DURING FEBRUARY 2015

SEDIMENT CAP THICKNESS MEASUREMENT SOIL CUTINGS & SEDIMENT SAMPLINGSILVER LAKE AREA


TCLPSample ID: Regulatory A6594

Parameter Date Collected: Limits 1/15/2015Volatile Organics1,1-Dichloroethene 0.7 ND(0.010)1,2-Dichloroethane 0.5 ND(0.010)1,4-Dichlorobenzene 7.5 ND(0.010)2-Butanone 200 0.023 JBenzene 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 Organics1,4-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)2-Methylphenol 200 ND(0.050)3&4-Methylphenol 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(0.050)Pyridine 5 ND(0.050)InorganicsArsenic 5 0.0309 BBarium 100 0.561 BCadmium 1 ND(0.0500)Chromium 5 0.0107 BLead 5 0.0522 BMercury 0.2 0.0000571 BSelenium 1 0.0717 BSilver 5 0.0104 B

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 20-3 for analysis of PCBs.3. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.

Data Qualifiers:

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

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



DateTurbidity

(Nephelometric Turbidity Units)

Water Temperature (Degrees Celsius)

Water Depth(feet)

2/25/2015 NA 1.3 0.7

Note:

1. Measurements collected by ARCADIS (NA = Not Available).

TABLE 20-5SILVER LAKE FIELD MEASUREMENTS COLLECTED DURING FEBRUARY 2015


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Date Gauge Measurement (ft) Calculated Flow (cfs)

2/25/2015 3.32 0.60

Notes:

1. Calculated flows developed using rating curve (rating curve revised October 2014).

2. Gauge located at top of grate at end of Silver Lake outlet channel.

TABLE 20-6SILVER LAKE OUTLET DISCHARGE - FEBRUARY 2015

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

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ITEM 21 GROUNDWATER MANAGEMENT AREAS

PLANT SITE 1 (GMA 1) (GECD310)

FEBRUARY 2015

* All activities described below for this item were conducted pursuant to the Consent Decree. a. Activities Undertaken/Completed General:

- Completed preparation of Long-Term Monitoring Event Evaluation Report for Fall 2014.

- Conducted routine groundwater elevation monitoring and non-aqueous-phase liquid (NAPL) monitoring/recovery activities, as indicated in Table 21-1.

- Continued routine well monitoring and manual NAPL/removal activities at various wells within

GMA 1. Totals of approximately 61.1 gallons (231.7 liters) of LNAPL and 56.1 gallons (212.6 liters) of DNAPL were manually removed from wells in GMA 1 in February (see Tables 21-2 and 21-3). The LNAPL volume includes the manual removal of 28.0 gallons (106.1 liters) of LNAPL from pumping system 64V (due to freezing of the pump discharge line), as indicated in Table 21-2. The DNAPL volume includes the manual removal of approximately 51.5 gallons (195.0 liters) of DNAPL from new DNAPL monitoring well E2SC-03D, as indicated in Table 21-3.

Note: The following entries identify additional activities conducted within specific Removal Action Areas within GMA 1. East Street Area 1-North and South:

- Continued automated groundwater and LNAPL pumping at the Northside Caisson. No LNAPL

was removed from the Northside Caisson in February (see Table 21-4).

- Continued automated groundwater and LNAPL pumping at the Southside Caisson. No LNAPL was removed from the Southside Caisson in January (see Table 21-4).

East Street Area 2-South:

- Continued automated groundwater and LNAPL removal activities. A total of approximately

3,859,214 gallons of groundwater was recovered from pumping systems 17W, 64R, 64S, 64V, 64X, RW-2(X), RW-1(S), RW-1(X), and RW-4 during February. In addition, approximately 174 gallons of LNAPL were removed from those pumping systems during February. (See Table 21-5.)

- Continued automated DNAPL removal activities. No DNAPL was removed from pumping

system RW-3(X) during February (see Table 21-5).

- Treated/discharged 3,646,388 gallons of water through the Building 64G Groundwater Treatment Facility (GWTF) during February (see Table 21-6).


ITEM 21 (cont’d)

GROUNDWATER MANAGEMENT AREAS PLANT SITE 1 (GMA 1)


a. Activities Undertaken/Completed (cont’d)

Lyman Street Area: - Continued automated groundwater and NAPL removal activities. Approximately 125,905

gallons of groundwater were recovered from pumping systems RW-1R, RW-2, and RW-3 during February. No LNAPL was removed from those automated recovery systems during February. (See Table 21-7.)

- Monthly gauging could not be performed at monitoring well LSSC-16I due to frozen groundwater within the PVC well casing. A damaged bolt in the well cover and J-plug were replaced. LSSC-16I will be inspected and monthly gauging will resume in March.

Newell Street Area II:

- Continued automated DNAPL removal activities at System 2 (which is composed of wells N2SC-

01I(R), N2SC-03I(R), and N2SC-14). No DNAPL was removed by the System 2 automated removal system in February (see Table 21-8), as the system remained shut down for maintenance. There was, however, a manual removal of approximately 4 gallons of DNAPL from System 2, as noted in Table 21-3.

Silver Lake Area:

- Conducted routine monitoring of lake level and discharge at the outfall as part of the Housatonic River water column monitoring program. (See Item 20.a above.)


See attached tables


Submitted Long-Term Monitoring Event Evaluation Report for Fall 2014 (February 27, 2015).


ITEM 21 (cont’d)




Continue routine groundwater and NAPL monitoring/recovery activities. e. General Progress/Unresolved Issues/Potential Schedule Impacts

No issues. f. Proposed/Approved Work Plan Modifications None

TABLE 21-1ROUTINE WELL MONITORING

GROUNDWATER MANAGEMENT AREA 1 CONSENT DECREE MONTHLY STATUS REPORT

GENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS February 2015

Measuring Depth Depth to LNAPL Depth to DNAPL Total CorrectedWell Point Elev. Date to Water LNAPL Thickness DNAPL Thickness Depth Water Elev.

Name (feet) (ft BMP) (ft BMP) (feet) (ft BMP) (feet) (ft BMP) (feet)17W 991.60 2/5/15 19.56 19.52 0.04 ND 0.00 27.34 972.0817W 991.60 2/12/15 19.95 19.91 0.04 ND 0.00 27.34 971.6917W 991.60 2/19/15 19.51 19.50 P ND 0.00 27.34 972.1017W 991.60 2/26/15 19.95 19.90 0.05 ND 0.00 17.34 971.7064R 993.37 2/5/15 16.23 16.12 0.11 ND 0.00 20.50 977.2464R 993.37 2/12/15 16.12 16.04 0.08 ND 0.00 20.50 977.3264R 993.37 2/19/15 16.30 16.22 0.08 ND 0.00 20.50 977.1464R 993.37 2/26/15 16.20 16.12 0.08 ND 0.00 20.50 977.2464S 984.48 2/5/15 19.60 ND ND ND 0.00 28.70 964.8864S 984.48 2/12/15 19.65 ND ND ND 0.00 28.70 964.8364S 984.48 2/19/15 19.40 ND ND ND 0.00 28.70 965.0864S 984.48 2/26/15 19.50 ND ND ND 0.00 28.70 964.98

64S-CAISSON 984.4 2/5/15 11.55 11.29 0.26 ND 0.00 14.55 973.0964S-CAISSON 984.4 2/12/15 10.92 10.88 0.04 ND 0.00 14.55 973.5264S-CAISSON 984.4 2/19/15 10.83 10.82 0.01 ND 0.00 14.55 973.5864S-CAISSON 984.4 2/26/15 11.00 10.98 0.02 ND 0.00 14.55 973.42

64V 987.29 2/5/15 21.20 20.86 0.34 29.58 P 29.59 966.4164V 987.29 2/12/15 21.34 20.95 0.39 29.58 P 29.59 966.3164V 987.29 2/19/15 21.43 20.96 0.47 29.58 P 29.59 966.3064V 987.29 2/26/15 21.26 20.83 0.43 29.58 P 29.59 966.43

64X(N) 984.83 2/5/15 11.86 11.84 0.02 ND 0.00 15.85 972.9964X(N) 984.83 2/12/15 11.80 11.78 0.02 ND 0.00 15.85 973.0564X(N) 984.83 2/19/15 11.88 11.86 0.02 ND 0.00 15.85 972.9764X(N) 984.83 2/26/15 11.90 11.88 0.02 ND 0.00 15.85 972.9564X(S) 981.56 2/5/15 15.76 15.54 0.22 ND 0.00 23.82 966.0064X(S) 981.56 2/12/15 15.56 15.34 0.22 ND 0.00 23.82 966.2064X(S) 981.56 2/19/15 15.60 15.38 0.22 ND 0.00 23.82 966.1664X(S) 981.56 2/26/15 15.80 15.58 0.22 ND 0.00 23.82 965.9664X(W) 984.87 2/5/15 18.80 18.78 0.02 ND 0.00 24.35 966.0964X(W) 984.87 2/12/15 18.75 18.74 0.01 ND 0.00 24.35 966.1364X(W) 984.87 2/19/15 18.63 18.61 0.02 ND 0.00 24.35 966.2664X(W) 984.87 2/26/15 18.73 18.72 0.01 ND 0.00 24.35 966.15

N2SC-01I R 984.34 2/5/15 15.45 ND ND 42.10 0.50 42.60 968.89N2SC-01I R 984.34 2/12/15 15.56 ND ND 42.58 P 42.59 968.78N2SC-01I R 984.34 2/19/15 15.70 ND ND 42.58 P 42.59 968.64N2SC-01I R 984.34 2/26/15 15.78 ND ND 42.30 0.30 42.60 968.56N2SC-03I R 985.86 2/5/15 13.62 ND ND 40.62 0.48 41.10 972.24N2SC-03I R 985.86 2/12/15 13.70 ND ND 41.00 0.10 41.10 972.16N2SC-03I R 985.86 2/19/15 13.82 ND ND 40.70 0.40 41.10 972.04N2SC-03I R 985.86 2/26/15 13.95 ND ND 40.86 0.24 41.10 971.91

N2SC-14 986.66 2/5/15 13.90 ND ND 39.60 0.40 40.00 972.76N2SC-14 986.66 2/12/15 13.96 ND ND 39.98 P 39.99 972.70N2SC-14 986.66 2/19/15 14.08 ND ND 39.98 P 39.99 972.58N2SC-14 986.66 2/26/15 14.16 ND ND 39.72 0.28 40.00 972.50

NORTH CAISSON 997.84 2/5/15 18.58 18.57 0.01 ND 0.00 19.80 979.27NORTH CAISSON 997.84 2/12/15 18.62 18.61 0.01 ND 0.00 19.80 979.23NORTH CAISSON 997.84 2/19/15 18.60 18.59 0.01 ND 0.00 19.80 979.25NORTH CAISSON 997.84 2/26/15 18.59 18.58 0.01 ND 0.00 19.80 979.26

RW-1 (R) 985.07 2/5/15 17.69 17.68 P 21.63 P 21.64 967.39RW-1 (R) 985.07 2/12/15 17.59 17.58 P 21.63 P 21.64 967.49RW-1 (R) 985.07 2/19/15 17.62 17.61 P 21.63 P 21.64 967.46RW-1 (R) 985.07 2/26/15 17.53 17.52 P 21.63 P 21.64 967.55RW-1(S) 987.23 2/5/15 17.62 17.29 0.33 ND 0.00 28.60 969.92RW-1(S) 987.23 2/12/15 17.50 17.21 0.29 ND 0.00 28.60 970.00RW-1(S) 987.23 2/19/15 18.26 18.09 0.17 ND 0.00 28.60 969.13RW-1(S) 987.23 2/26/15 17.46 17.26 0.20 ND 0.00 28.60 969.96RW-1(X) 982.68 2/5/15 14.96 14.76 0.20 ND 0.00 23.39 967.91RW-1(X) 982.68 2/12/15 14.77 14.57 0.20 ND 0.00 23.39 968.10RW-1(X) 982.68 2/19/15 15.00 14.85 0.15 ND 0.00 23.39 967.82RW-1(X) 982.68 2/26/15 15.00 14.70 0.30 ND 0.00 23.39 967.96

RW-2 987.82 2/5/15 16.65 ND ND ND 0.00 24.70 971.17RW-2 987.82 2/12/15 16.58 ND ND ND 0.00 24.70 971.24RW-2 987.82 2/19/15 16.59 ND ND ND 0.00 24.70 971.23RW-2 987.82 2/26/15 17.02 ND ND ND 0.00 24.70 970.80

RW-2(X) 985.96 2/5/15 16.91 ND ND ND 0.00 23.76 969.05RW-2(X) 985.96 2/12/15 17.02 ND ND ND 0.00 23.76 968.94RW-2(X) 985.96 2/19/15 16.86 ND ND ND 0.00 23.76 969.10RW-2(X) 985.96 2/26/15 17.12 ND ND ND 0.00 23.76 968.84

RW-3 984.08 2/5/15 15.12 14.92 0.20 ND 0.00 22.70 969.15

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GROUNDWATER MANAGEMENT AREA 1 CONSENT DECREE MONTHLY STATUS REPORT

GENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS February 2015


Name (feet) (ft BMP) (ft BMP) (feet) (ft BMP) (feet) (ft BMP) (feet)RW-3 984.08 2/12/15 15.31 15.11 0.20 ND 0.00 22.70 968.96RW-3 984.08 2/19/15 15.12 14.92 0.20 ND 0.00 22.70 969.15RW-3 984.08 2/26/15 15.10 14.90 0.20 ND 0.00 22.70 969.17

RW-3(X) 980.28 2/5/15 7.79 ND ND 42.69 1.71 44.40 972.49RW-3(X) 980.28 2/12/15 8.09 ND ND 42.59 1.81 44.40 972.19RW-3(X) 980.28 2/19/15 8.14 ND ND 42.59 1.81 44.40 972.14RW-3(X) 980.28 2/26/15 8.18 ND ND 42.50 1.90 44.40 972.10

RW-4 987.45 2/5/15 19.15 19.13 0.02 ND 0.00 29.05 968.32RW-4 987.45 2/12/15 20.86 20.84 0.02 ND 0.00 29.05 966.61RW-4 987.45 2/19/15 20.80 20.78 0.02 ND 0.00 29.05 966.67RW-4 987.45 2/26/15 20.86 20.84 0.02 ND 0.00 29.05 966.61

SOUTH CAISSON 1,001.11 2/5/15 14.50 14.48 0.02 ND 0.00 15.00 986.63SOUTH CAISSON 1,001.11 2/12/15 14.70 14.68 0.02 ND 0.00 15.00 986.43SOUTH CAISSON 1,001.11 2/19/15 14.80 14.78 0.02 ND 0.00 15.00 986.33SOUTH CAISSON 1,001.11 2/26/15 13.84 13.82 0.02 ND 0.00 15.00 987.29

19R 985.38 2/3/15 12.62 ND 0.00 ND 0.00 20.30 972.7649R 988.62 2/3/15 14.93 ND 0.00 ND 0.00 24.62 973.69

49RR 990.01 2/3/15 16.34 ND 0.00 ND 0.00 23.59 973.67E2SC-03D 983.14 2/4/15 NM ND 0.00 44.50 8.10 52.60 NME2SC-03D 983.14 2/6/15 NM ND 0.00 44.30 8.30 52.60 NME2SC-03D 983.14 2/10/15 NM ND 0.00 44.25 8.40 52.60 NME2SC-03D 983.14 2/17/15 NM ND 0.00 44.40 8.20 52.60 NME2SC-03D 983.14 2/21/15 NM ND 0.00 44.50 8.10 52.60 NME2SC-03D 983.14 2/25/15 NM ND 0.00 43.10 8.90 52.60 NME2SC-03D 983.14 2/27/15 NM ND 0.00 46.30 6.30 52.60 NME2SC-23 992.07 2/3/15 16.38 ND 0.00 ND 0.00 21.13 975.69E2SC-24 987.90 2/3/15 15.33 ND 0.00 ND 0.00 21.61 972.57

ESA1S-31R 1,000.23 2/3/15 8.66 ND 0.00 ND 0.00 14.80 991.57ESA1S-33 999.58 2/3/15 4.87 ND 0.00 ND 0.00 21.65 994.71ESA1S-34 1,000.15 2/3/15 6.52 ND 0.00 ND 0.00 21.78 993.63ESA1S-72 1,000.59 2/3/15 7.21 ND 0.00 ND 0.00 22.44 993.38

ESA1S-72R 1,000.75 2/3/15 6.55 ND 0.00 ND 0.00 13.51 994.20ESA1S-75 1,000.53 2/3/15 6.93 ND 0.00 ND 0.00 22.62 993.60

ESA2S-PZ3 986.62 2/3/15 13.67 ND 0.00 ND 0.00 24.23 972.95ESA2S-PZ4 986.41 2/3/15 13.57 ND 0.00 ND 0.00 25.11 972.84ESA2S-PZ5 985.96 2/3/15 13.02 ND 0.00 ND 0.00 24.68 972.94ESA2S-PZ6 986.24 2/4/15 14.10 13.24 0.09 ND 0.00 22.10 972.22GMA1-20R 984.42 2/3/15 11.55 ND 0.00 ND 0.00 20.02 972.87GMA1-21 985.48 2/3/15 12.58 ND 0.00 ND 0.00 19.51 972.90GMA1-30 985.60 2/3/15 13.00 ND 0.00 ND 0.00 20.11 972.60

LS-12 986.44 2/3/15 14.84 ND 0.00 ND 0.00 27.44 971.60LS-24 986.58 2/3/15 17.88 ND 0.00 ND 0.00 19.43 968.70LS-30 988.12 2/5/15 15.32 ND 0.00 23.88 P 23.89 972.80LS-31 989.15 2/5/15 15.75 ND 0.00 25.11 0.31 25.42 973.40LS-38 987.84 2/4/15 16.50 ND 0.00 ND 0.00 25.95 971.34

LS-38S 987.77 2/4/15 16.55 ND 0.00 ND 0.00 18.03 971.22LSSC-07 982.31 2/5/15 10.79 ND 0.00 24.07 0.84 24.91 971.52LSSC-08I 983.00 2/4/15 12.10 ND 0.00 ND 0.00 23.24 970.90LSSC-16I 980.84 ** 980.84LSSC-18 991.13 2/4/15 18.31 ND 0.00 ND 0.00 22.41 972.82N2SC-07 982.93 2/4/15 9.75 ND 0.00 35.64 0.15 35.79 973.18

Notes:1. ft BMP - feet Below Measuring Point.2. ND: Indicates NAPL was not present in a measurable quantity.3. P: Indicates that LNAPL or DNAPL was present at a thickness of less than 0.01 foot.4. **: Monthly gauging could not be performed at monitoring well LSSC-16I due to frozen groundwater within the PVC well casing.5. NM: Indicates information not measured.

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TABLE 21-2WELL MONITORING AND MANUAL RECOVERY OF LNAPL

GROUNDWATER MANAGEMENT AREA 1


February 2015

Depth Depth to LNAPL LNAPL LNAPLWell Date to Water LNAPL Thickness Removed Removed

Name (ft BMP) (ft BMP) (feet) (gallons) (liters)ESA2S-PZ6 2/4/15 14.10 13.24 0.86 0.1 0.5

64V 2/19/15 21.43 20.96 0.47 28.0 106.1RW-1(S) 2/5/15 17.62 17.29 0.33 6.0 22.7RW-1(S) 2/12/15 17.50 17.21 0.29 7.0 26.5RW-1(S) 2/19/15 18.26 18.09 0.17 8.0 30.3RW-1(S) 2/26/15 17.46 17.26 0.20 12.0 45.5

61.1 gallons 231.7 liters

Note:1. ft BMP - feet Below Measuring Point.2. Measurement collected post-recovery.

Total LNAPL Removal for February 2015:

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2015\02-15\Tables\Tables 21-1, 21-2 and 21-3_GMA-1_FINAL Revised 3-5-15.xlsxLNAPL

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TABLE 21-3WELL MONITORING AND MANUAL RECOVERY OF DNAPL



February 2015

Depth Depth to DNAPL DNAPL DNAPLWell Date to Water DNAPL Thickness Removed Removed

Name (ft BMP) (ft BMP) (feet) (gallons) (liters)E2SC-03D 2/4/15 NM 44.50 8.10 7.0 26.5E2SC-03D 2/6/15 NM 44.30 8.30 7.0 26.5E2SC-03D 2/10/15 NM 44.25 8.40 8.0 30.3E2SC-03D 2/17/15 NM 44.40 8.20 8.0 30.3E2SC-03D 2/21/15 NM 44.50 8.10 8.0 30.3E2SC-03D 2/25/15 NM 43.10 8.90 8.0 30.3E2SC-03D 2/27/15 NM 46.30 6.30 5.5 20.8

LS-31 2/5/15 15.75 25.11 0.31 0.5 1.8LSSC-07 2/5/15 10.79 24.07 0.85 0.1 0.5

N2SC-01I R 2/12/2015 15.56 P < 0.01N2SC-03I R 2/12/2015 13.70 41.00 0.10

N2SC-14 2/12/2015 13.96 P < 0.01


Note:1. ft BMP - feet Below Measuring Point2. Measurement collected post-recovery.3. P: Indicates that LNAPL or DNAPL was present at a thickness of less than 0.01 foot.4. NM: Indicates information not measured.

Total DNAPL Removal for January 2015:

4.0 15.2

G:\GE\GE_Pittsfield_General\Reports and Presentations\Monthly Reports\2015\02-15\Tables\Tables 21-1, 21-2 and 21-3_GMA-1_FINAL Revised 3-5-15.xlsx - DNAPL

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TABLE 21-4AUTOMATED LNAPL & GROUNDWATER RECOVERY SYSTEMS MONTHLY SUMMARY

EAST STREET AREA 1 - NORTH & SOUTHGROUNDWATER MANAGEMENT AREA 1


February 2015

Vol. LNAPL Vol. WaterCollected Recovered Percent

Caisson Month (gallon) (gallon) Downtime

Northside February 2014 0.0 16,350

March 2014 0.0 15,950

April 2014 0.0 26,550

May 2014 0.0 24,200 8.57 2

June 2014 0.0 22,650

July 2014 0.0 32,000

August 2014 0.0 26,450

September 2014 0.0 15,350

October 2014 0.0 16,600

November 2014 0.0 9,684 4.1 3

December 2014 0.0 19,929

January 2015 0.0 29,300

February 2015 0.0 15,690

Southside February 2014 0.0 84,270

March 2014 0.0 79,212

April 2014 0.0 112,415

May 2014 0.0 161,303 8.57 1

June 2014 5.0 0 100 2

July 2014 0.0 0 100 2

August 2014 0.0 0 100 2

September 2014 0.0 22,696

October 2014 0.0 71,400

November 2014 0.0 42,759

December 2014 0.0 95,794

January 2015 0.0 93,083

February 2015 0.0 51,921

Notes:

2. South Caisson recovery system shutdown on 5/26/14.3. Northside Caisson depression pump shutdown 11/19/14 through 11/20/14 for maintenance.

1. North and South Caisson recovery systems shutdown on 5/26/14, ~11:30 AM in response to a potential South Caisson depression pump discharge piping integrity failure (72 hours).

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TABLE 21-5AUTOMATED LNAPL/DNAPL & GROUNDWATER RECOVERY SYSTEMS

EAST STREET AREA 2 - SOUTH GROUNDWATER MANAGEMENT AREA 1


February 2015

Recovery Oil WaterSystem Collected Recovered Percent

Location Month (gallon) (gallon) Downtime

17W February 2014 1 March 2014 1April 2014 0 May 2014 0 June 2014 3July 2014 1

August 2014 1September 2014 1

October 2014 1November 2014 1December 2014 2January 2015 2February 2015 1

64R February 2014 0 24,186March 2014 0 37,901April 2014 0 477,380May 2014 63 969,510June 2014 0 666,479July 2014 148 1,359,660

August 2014 181 1,252,856September 2014 406 448,979

October 2014 25 11,217November 2014 19 5,409December 2014 13 103,253January 2015 38 733,096February 2015 25 148,554

64S System February 2014 263 484,720 March 2014 0 441,668April 2014 144 786,808May 2014 175 901,261 June 2014 63 668,233July 2014 219 1,078,192

August 2014 319 1,018,420September 2014 206 581,798


64V February 2014 249 735,600March 2014 232 916,100April 2014 374 888,800May 2014 398 1,050,700 June 2014 307 804,600July 2014 444 1,111,100

August 2014 490 969,200September 2014 233 794,500


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February 2015



64X February 2014 0 833,896March 2014 11 489,014April 2014 3 1,211,738May 2014 0 1,561,651June 2014 1 1,240,978July 2014 1 48 1,549,025

August 2014 0 1,231,073September 2014 11 1,223,439

October 2014 21 1,239,049November 2014 32 1,033,438December 2014 4 1,175,611January 2015 19 1,308,006 11.43 4

February 2015 0 1,107,572

RW-2(X) February 2014 1 48,938March 2014 0 26,463April 2014 0 28,453May 2014 0 38,515 June 2014 0 22,085July 2014 0 56,288


October 2014 0 47,558November 2014 0 42,476December 2014 0 56,541January 2015 0 71,420 11.43 4

February 2015 0 39,246

RW-1(S) February 2014 39 445,676March 2014 34 437,231April 2014 31 600,491May 2014 48 697,762 June 2014 17 596,031July 2014 39 874,482



RW-1(X) February 2014 4 227,640March 2014 0 230,547April 2014 0 261,088 May 2014 0 336,578June 2014 0 248,071July 2014 0 310,538

August 2014 4.5 228,967 7.14 2

September 2014 0 217,878 October 2014 0 264,195

November 2014 0 205,070December 2014 0 226,184January 2015 0 265,324 11.43 4

February 2015 0 222,435


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February 2015



RW-4 February 2014 8 644,503March 2014 10 654,119April 2014 31 685,144May 2014 6 886,764June 2014 10 680,603July 2014 4 806,237

August 2014 13 581,418 5.28 3

September 2014 2 614,797 October 2014 0 757,158

November 2014 13 568,895December 2014 19 553,525January 2015 17 621,319February 2015 0 514,670

RW-3(X) February 2014 2March 2014 0 April 2014 2 May 2014 3 June 2014 4 July 2014 2

August 2014 12 September 2014 13

October 2014 2 November 2014 0December 2014 0 January 2015 0 February 2015 0

Summary of Total Automated RemovalWater: 3,859,214 Gallons

LNAPL: 174 GallonsDNAPL: 0 Gallons

Notes:

1.

2. RW-1(X) Drepression pump down 8/1/2014 through 8/4/2014 due to control float failure. (~48 hrs)3.

4.

64X - July 2014 total LNAPL removal is corrected to 48 gallons from 30 as reported in July 2014 CD Monthly Status Report.

RW-4 Depression pump down from ~ 8:30 PM, 8/9 through ~ 8:00 AM, 8/11. Pump controller fault. (~35.5 hrs)January 2015 - 64X Transfer Pump control system failure caused well shutdowns at 64X(W), RW-1(X) and RW-1(X). Wells were shutdown 1/16 through 1/20.


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TABLE 21-664G TREATMENT PLANT DISCHARGE DATA



February 2015

Housatonic River Recharge Pond TotalDate Discharge Discharge Discharge

(gallons) (gallons) (gallons)

February 2014 3,271,980 120,202 3,392,182

March 2014 3,346,325 109,919 3,456,244

April 2014 5,198,230 163,537 5,361,767

May 2014 5,517,050 241,955 5,759,005

June 2014 5,028,310 215,317 5,243,627

July 2014 5,989,530 214,847 6,204,377

August 2014 6,317,680 206,288 6,523,968

September 2014 4,049,060 236,427 4,285,487

October 2014 3,578,340 186,262 3,764,602

November 2014 3,410,580 170,736 3,581,316

December 2014 4,374,330 133,638 4,507,968

January 2015 4,583,810 122,915 4,706,725

February 2015 3,415,820 129,568 3,646,388

Note: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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TABLE 21-7 ACTIVE RECOVERY SYSTEMS MONTHLY SUMMARY

LYMAN STREET AREAGROUNDWATER MANAGEMENT AREA 1


February 2015

Volume Water RW-1R LNAPL RW-3 LNAPLPumped Recovered Recovered

Month / Year (gallon)1 (gallon) (gallon)

February 2013 119,471 --- ---

March 2013 147,381 --- ---

April 2013 160,225 --- 9

May 2013 168,929 --- ---

June 2013 200,377 --- 5

July 2013 143,151 --- 8

August 2013 120,191 --- ---

September 2013 97,956 --- ---

October 2013 117,619 --- ---

November 2013 84,397 --- 5

December 2013 89,907 --- ---

January 2014 141,436 --- ---

February 2014 92,501 --- 3.5

March 2014 100,221 --- ---

April 2014 166,614 --- 7

May 2014 186,814 --- ---

June 2014 123,699 --- 5

July 2014 183,004 --- 8.5

August 2014 128,909 --- 3 3

September 2014 84,258 --- --- 4

October 2014 101,477 --- ---

November 2014 89,755 --- ---

December 2014 121,890 --- ---

January 2015 151,799 --- ---

February 2015 125,905 --- ---

Notes:1. Volume of water pumped is total from Wells RW-1R, RW-2, and RW-3.2. --- indicates NAPL was not recovered by the system.3. For the week ending August 28, 2014, depression pump system float switch failure at Well RW-3. Issues exist with the manufacturer's replacement switches which caused intermittent periods where the system was not functioning. Estimated total downtime for this period is 96 hours (14.29% downtime).4. For the week ending September 4, 2014, depression pump system float switch failure at Well RW-3. Issues exist with the manufacturer's replacement switches which caused intermittent periods where the system was not functioning. Estimated total downtime for this period is 160 + 167 hours (48.66% downtime).

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TABLE 21-8ACTIVE DNAPL RECOVERY SYSTEMS MONTHLY SUMMARY

NEWELL STREET AREA IIGROUNDWATER MANAGEMENT AREA 1


February 2015

Recovery Total Gallons

System Recovered

System 2(1) February 2014 13.0

March 2014 0.0

April 2014 0.0

May 2014 0.0

June 2014 12.0

July 2014 12.0

August 2014 0.0

September 2014 0.0

October 2014 22 2

November 2014 0 3

December 2014 0 4

January 2015 0 4

February 2015 0 4

0 4

Note:1. System 2 wells are N2SC-01I(R), N2SC-03I(R), and N2SC-14.2. Recovery system shutdown for maintenance on October 16, 2014 (504 hours/63.64% downtime).3. Recovery system shutdown for maintenance (672 hours/93.33% downtime).4. Recovery system shutdown for maintenance (100% downtime).

Date

February 2015

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ITEM 23




- Conducted routine groundwater elevation monitoring and NAPL monitoring/recovery activities, as indicated in Table 23-1.

- Approximately 4.5 gallons of LNAPL were removed by the automatic skimmer located in well

51-21 and 0.3 gallon of LNAPL was removed by the automatic skimmer located in well GMA3-17 during February (see Table 23-2).

- Approximately 2.7 gallons (10.2 liters) of LNAPL were manually removed from the wells in this

area during February (see Table 23-3).

- Worked on preparation of Groundwater and NAPL Monitoring Report for Fall 2014 (due to EPA by March 9, 2015 – see Item 23.e below).

- Continued communications with EPA regarding Appendix F to GE’s Spring 2014 Groundwater and NAPL Monitoring Report (submitted in August 2014) relating to potential vapor intrusion issues at Buildings 51 and 59.


None


None


- Continue routine groundwater and NAPL monitoring/recovery activities. - Complete and submit Groundwater and NAPL Monitoring Report for Fall 2014 (due to EPA by

March 9, 2015 – see Item 23.e below).

- Complete discussions with EPA regarding Appendix F to GE’s Spring 2014 Groundwater Quality and NAPL Monitoring Report and associated potential vapor intrusion issues at Buildings 51 and 59, and receive a conditional approval letter from EPA for that Appendix F (see Item 23.f below).


ITEM 23 (cont’d)



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

- Depending on outcome of above discussions, potentially conduct a building material and products inventory and a sub-slab gas and indoor air sampling event at Buildings 51 and 59.


- EPA agreed to extend the date for submission of the Groundwater and NAPL Monitoring Report

for Fall 2014 from February 28 to March 9, 2015.

- As noted above, potential vapor intrusion issues arising from Appendix F to GE’s Spring 2014 Groundwater Quality and NAPL Monitoring Report, including the schedule for the next sub-slab gas and indoor air sampling event and the next submittal on these issues, are under discussion with EPA.

- Monthly gauging could not be performed at monitoring well 51-18 due to snow mounding over

the well location. GE will remove snow over well 51-18 to resume monthly gauging in March. f. Proposed/Approved Work Plan Modifications

- Received conditional approval from EPA of GE’s August 29, 2014 Groundwater Quality and

NAPL Monitoring Interim Report for Spring 2014 (February 23, 2015). - EPA’s above-referenced conditional approval letter for the Spring 2014 Groundwater Quality

and NAPL Monitoring Report stated that issues relating to potential vapor intrusion issues at Buildings 51 and 59, as discussed in Appendix F to that report, will be addressed in a separate conditional approval letter. That separate letter will address GE’s proposal, contained in that Appendix F, of several modifications to the sub-slab soil gas and indoor air monitoring program for Buildings 51 and 59.




February 2015


Name (feet) (ft BMP) (ft BMP) (feet) (ft BMP) (feet) (ft BMP) (feet)51-21 1,001.49 2/4/15 15.28 15.27 P ND 0.00 28.90 986.2151-21 1,001.49 2/10/15 16.20 16.10 0.10 ND 0.00 28.90 985.3851-21 1,001.49 2/18/15 16.20 16.08 0.12 ND 0.00 28.90 985.4051-21 1,001.49 2/24/15 15.88 15.77 0.11 ND 0.00 28.90 985.7151-8 997.14 2/4/15 12.10 11.10 1.00 ND 0.00 14.60 985.9751-8 997.14 2/10/15 11.20 10.18 1.02 ND 0.00 14.60 986.8951-8 997.14 2/18/15 12.20 11.40 0.80 ND 0.00 14.60 985.6851-8 997.14 2/24/15 12.40 11.50 0.90 ND 0.00 14.60 985.58

GMA3-10 997.49 2/4/15 11.74 11.40 0.34 ND 0.00 17.68 986.07GMA3-10 997.49 2/10/15 11.39 11.30 0.09 ND 0.00 17.68 986.18GMA3-10 997.49 2/18/15 11.50 11.41 0.09 ND 0.00 17.68 986.07GMA3-10 997.49 2/24/15 11.82 11.46 0.36 ND 0.00 17.68 986.00GMA3-12 997.90 2/4/15 11.80 11.64 0.16 ND 0.00 21.02 986.25GMA3-12 997.90 2/10/15 11.91 11.80 0.11 ND 0.00 21.02 986.09GMA3-12 997.90 2/18/15 11.85 11.76 0.09 ND 0.00 21.02 986.13GMA3-12 997.90 2/24/15 12.20 12.08 0.12 ND 0.00 21.02 985.81GMA3-13 997.71 2/4/15 11.44 ND 0.00 ND 0.00 17.34 986.27GMA3-13 997.71 2/10/15 11.58 ND 0.00 ND 0.00 17.34 986.13GMA3-13 997.71 2/18/15 11.73 ND 0.00 ND 0.00 17.34 985.98GMA3-13 997.71 2/24/15 11.80 11.79 0.01 ND 0.00 17.34 985.92GMA3-17 1,003.17 2/4/15 17.49 17.48 P ND 0.00 24.21 985.69GMA3-17 1,003.17 2/10/15 17.61 ND 0.00 ND 0.00 24.21 985.56GMA3-17 1,003.17 2/18/15 17.75 17.74 P ND 0.00 24.21 985.43GMA3-17 1,003.17 2/24/15 17.84 17.83 P ND 0.00 24.21 985.34078B-R 988.73 2/4/15 2.37 ND 0.00 ND 0.00 11.51 986.3651-05R 996.68 2/5/15 11.82 10.52 1.30 ND 0.00 15.12 986.0751-06 997.32 2/4/15 10.82 ND 0.00 ND 0.00 14.14 986.5051-07 996.99 2/5/15 10.77 ND 0.00 ND 0.00 14.38 986.2251-09 997.70 2/5/15 10.68 ND 0.00 ND 0.00 14.57 987.0251-12 996.56 2/5/15 7.57 ND 0.00 ND 0.00 13.56 988.9951-13 997.29 2/5/15 11.39 ND 0.00 ND 0.00 13.71 985.9051-14 996.64 2/5/15 10.77 ND 0.00 ND 0.00 14.76 985.8751-15 996.46 2/5/15 10.40 10.36 0.04 ND 0.00 14.28 986.10

51-16R 996.44 2/5/15 10.51 10.38 0.13 ND 0.00 14.86 986.0551-17 996.22 2/5/15 10.90 10.29 0.61 ND 0.00 14.75 985.8951-18 996.16 ** 12.57 996.1651-19 996.46 2/5/15 11.37 10.59 0.78 ND 0.00 14.43 985.8259-01 997.80 2/5/15 11.81 11.75 0.06 ND 0.00 20.33 986.05

59-03R 997.71 2/5/15 12.05 11.54 0.51 ND 0.00 17.30 986.1359-07 997.80 2/4/15 11.99 ND 0.00 ND 0.00 22.91 985.81

GMA3-11 997.25 2/4/15 10.58 ND 0.00 ND 0.00 17.68 986.67GMA3-14 997.42 2/4/15 10.93 ND 0.00 ND 0.00 16.98 986.49GMA3-16 989.17 2/4/15 2.84 ND 0.00 ND 0.00 11.90 986.33

UB-MW-10R 996.00 2/4/15 9.69 ND 0.00 ND 0.00 15.53 986.31UB-PZ-3 998.22 2/5/15 12.18 12.03 0.15 ND 0.00 13.39 986.18

Notes:1. ft BMP - feet Below Measuring Point.2. ND: Indicates NAPL was not present in a measurable quantity.3. P: Indicates that LNAPL or DNAPL was present at a thickness of less than 0.01 foot.4. **: Monthly gauging could not be performed at monitoring well 51-18 due to a large snow pile over the well location.

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TABLE 23-2AUTOMATED LNAPL RECOVERY SYSTEMS MONTHLY SUMMARY



February 2015

Vol. LNAPLRecovery Collected

Well Month (gallons)

51-21 February 2014 9.5

March 2014 6.7

April 2014 2.1

May 2014 4.0

June 2014 1.8

July 2014 0.0

August 2014 1 0.0

September 2014 21.4

October 2014 10.0

November 2014 5.0

December 2014 2.0

January 2015 0.3

February 2015 4.5

GMA 3-17 February 2014 31.8

March 2014 11.7

April 2014 16.2

May 2014 18.9

June 2014 15.0

July 2014 7.8

August 2014 0.0

September 2014 0.0

October 2014 0.0

November 2014 0.0

December 2014 0.0

January 2015 0.2

February 2015 0.3

Notes:

1. As of August 4, 2014, Well 51-21 system down. Skimmer motor not functioning and awaiting manufacturer replacement. Estimated downtime for this period is approximately 576 hours (85.71%)2. On September 3, 2014, Well 51-21 motor replaced and system operating. Estimated downtime for this period is approximately 144 hours (21.43%)

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TABLE 23-3MEASUREMENT AND MANUAL REMOVAL OF RECOVERABLE LNAPL



February 2015

Depth Depth to LNAPL LNAPL LNAPLWell Date to Water LNAPL Thickness Removed Removal

Name (ft BMP) (ft BMP) (feet) (gallons) (liters)51-8 2/4/15 12.10 11.10 1.00 0.2 0.651-8 2/10/15 11.20 10.18 1.02 0.2 0.651-8 2/18/15 12.20 11.40 0.80 0.1 0.551-8 2/24/15 12.40 11.50 0.90 0.1 0.5

GMA3-10 2/4/15 11.74 11.40 0.34 0.1 0.2GMA3-10 2/24/15 11.82 11.46 0.36 0.1 0.2GMA3-13 2/24/15 11.80 11.79 0.01 0.002 0.00651-05R 2/5/15 11.82 10.52 1.30 0.5 1.951-17 2/5/15 10.90 10.29 0.61 0.5 1.951-19 2/5/15 11.37 10.59 0.78 0.5 1.959-3R 2/5/15 12.05 11.54 0.51 0.5 1.9


Note:1. ft BMP - feet Below Measuring Point.2. Measurement collected post-recovery.

Total LNAPL Removed for February 2015:

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ITEM 24 GROUNDWATER MANAGEMENT AREAS

PLANT SITE 3 (GMA 4) (GECD340)

FEBRUARY 2015

Note: This Item 24 describes activities conducted at GMA 4 other than those associated with the OPCAs. Activities relating to the OPCA post-closure groundwater monitoring program are described in Item 24A below. * All activities described below for this item were conducted pursuant to the Consent Decree. a. Activities Undertaken/Completed

Completed preparation of the Fall 2014 Monitoring Event Evaluation Report.


None


Submitted the Fall 2014 Monitoring Event Evaluation Report to EPA (by letter dated February 23, 2015) (see Item 24.e below).


None


EPA agreed to extend the date for submission of the Fall 2014 Monitoring Event Evaluation Report to February 24, 2015.


None


ITEM 24A

GROUNDWATER MANAGEMENT AREAS ON-PLANT CONSOLIDATION AREAS

POST-CLOSURE PROGRAM FEBRUARY 2015

Note: In accordance with GE’s Revised Post-Removal Site Control Plan for the On-Plant Consolidation Area, approved by EPA on September 26, 2011, a separate post-closure groundwater monitoring program is being implemented for the OPCA monitoring wells. The activities in that program are described in this item. * All activities described below for this item were conducted pursuant to the Consent Decree. a. Activities Undertaken/Completed

Completed preparation of the Fall 2014 Post-Closure Monitoring Event Evaluation Report.


None


Submitted the Fall 2014 Post-Closure Monitoring Event Evaluation Report to EPA (by letter dated February 23, 2015) (See Item 24A.e below).


None e. General Progress/Unresolved Issues/Potential Schedule Impacts

EPA agreed to extend the date for submission of the Fall 2014 Post-Closure Monitoring Event Evaluation Report to February 24, 2015.

f. Proposed/Approved Work Plan Modifications None

Attachment A

NPDES Sampling Records

and Results and Associated

Documentation – February 2015

TABLE A-1DATA RECEIVED AND/OR SAMPLES COLLECTED DURING FEBRUARY 2015

NPDES PERMIT MONITORINGGENERAL ELECTRIC COMPANY - PITTSFIELD MASSACHUSETTS



NPDES Sampling 005-1Q2M-1X-CP 2/2/15 Water SGS PCB 2/10/15NPDES Sampling 005-1Q2M-1X-CT 2/2/15 Water ALS TSS 2/10/15NPDES Sampling 005-1Q2M-1X-GO 2/2/15 Water ALS Oil & Grease 2/10/15NPDES Sampling 005-1Q2M-2X-CP 2/9/15 Water SGS PCB 2/17/15NPDES Sampling 005-1Q2M-2X-CT 2/9/15 Water ALS TSS 2/19/15NPDES Sampling 005-1Q2M-2X-GO 2/9/15 Water ALS Oil & Grease 2/19/15NPDES Sampling 006D-1Q1M-2X-CT 2/13/15 Water ALS TSS 2/23/15NPDES Sampling 006D-1Q2M-1X-CP 2/7/15 Water SGS PCB 2/17/15NPDES Sampling 006D-1Q2M-1X-CT 2/7/15 Water ALS TSS 2/19/15NPDES Sampling 006D-1Q2M-1X-GO 2/7/15 Water ALS Oil & Grease 2/19/15NPDES Sampling 006D-1Q2M-1X-GS 2/7/15 Water ALS SVOC 2/19/15NPDES Sampling 006D-1Q2M-1X-GV 2/12/15 Water ALS VOC 2/23/15NPDES Sampling 006D-1Q2M-2X-CP 2/13/15 Water SGS PCB 2/19/15NPDES Sampling 006D-1Q2M-2X-GO 2/12/15 Water ALS Oil & Grease 2/24/15NPDES Sampling 006D-1Q2M-2X-GS 2/12/15 Water ALS SVOC 2/23/15NPDES Sampling 006D-1Q2M-2X-GV 2/17/15 Water ALS VOC 2/27/15NPDES Sampling 64G-1Q2M-1X-CP 2/2/15 Water SGS PCB 2/10/15NPDES Sampling 64G-1Q2M-1X-CT 2/2/15 Water ALS TSS 2/10/15NPDES Sampling 64G-1Q2M-1X-GO 2/2/15 Water ALS Oil & Grease 2/10/15NPDES Sampling 64G-1Q2M-1X-GS 2/2/15 Water ALS SVOC 2/17/15NPDES Sampling 64G-1Q2M-1X-GV 2/2/15 Water ALS VOC 2/17/15NPDES Sampling 64G-1Q2M-2X-CP 2/9/15 Water SGS PCB 2/17/15NPDES Sampling 64G-1Q2M-2X-CT 2/9/15 Water ALS TSS 2/19/15NPDES Sampling 64G-1Q2M-2X-GO 2/9/15 Water ALS Oil & Grease 2/19/15NPDES Sampling 64G-1Q2M-2X-GS 2/9/15 Water ALS SVOC 2/19/15NPDES Sampling 64G-1Q2M-2X-GV 2/9/15 Water ALS VOC 2/19/15NPDES Sampling 64TD-1Q1M-2X-CT 2/13/15 Water ALS TSS 2/23/15NPDES Sampling 64TD-1Q2M-1X-CP 2/7/15 Water SGS PCB 2/17/15NPDES Sampling 64TD-1Q2M-1X-CT 2/7/15 Water ALS TSS 2/19/15NPDES Sampling 64TD-1Q2M-1X-GO 2/7/15 Water ALS Oil & Grease 2/19/15NPDES Sampling 64TD-1Q2M-2X-CP 2/13/15 Water SGS PCB 2/19/15NPDES Sampling 64TD-1Q2M-2X-GO 2/12/15 Water ALS Oil & Grease 2/24/15

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TABLE A-2DATA RECEIVED DURING FEBRUARY 2015

NPDES PERMIT MONITORING SAMPLINGGENERAL ELECTRIC COMPANY - PITTSFIELD, MASSACHUSETTS

(Results are presented in parts per million, ppm)

Sample ID: 005-1Q2M-1X-CP 005-1Q2M-1X-CT 005-1Q2M-1X-GO 005-1Q2M-2X-CP 005-1Q2M-2X-CT 005-1Q2M-2X-GO 006D-1Q1M-2X-CTParameter Date Collected: 02/02/15 02/02/15 02/02/15 02/09/15 02/09/15 02/09/15 02/13/15Volatile Organics1,1-Dichloroethane NA NA NA NA NA NA NA1,3-Dichlorobenzene NA NA NA NA NA NA NA1,4-Dichlorobenzene NA NA NA NA NA NA NABromodichloromethane NA NA NA NA NA NA NAChlorobenzene NA NA NA NA NA NA NAChloroethane NA NA NA NA NA NA NAChloroform NA NA NA NA NA NA NAMethylene Chloride NA NA NA NA NA NA NAToluene NA NA NA NA NA NA NAVinyl Chloride NA NA NA NA NA NA NAPCBs-UnfilteredAroclor-1248 ND(0.000016) NA NA ND(0.000015) NA NA NAAroclor-1254 ND(0.000016) NA NA 0.0000079 J1 NA NA NAAroclor-1260 ND(0.000016) NA NA ND(0.000015) NA NA NATotal PCBs ND(0.000016) NA NA 0.0000079 J1

NA NA NASemivolatile OrganicsNone Detected NA NA NA NA NA NA NAConventionalOil & Grease NA NA ND(4.1) NA NA 4.5 NATotal Suspended Solids NA ND(1.00) NA NA ND(1.00) NA 8.20


Tables.xlsx - A-2 Page 1 of 5 3/9/2015




Sample ID: 006D-1Q2M-1X-CP 006D-1Q2M-1X-CT 006D-1Q2M-1X-GO 006D-1Q2M-1X-GS 006D-1Q2M-1X-GV 006D-1Q2M-2X-CPParameter Date Collected: 02/07/15 02/07/15 02/07/15 02/07/15 02/12/15 02/13/15Volatile Organics1,1-Dichloroethane NA NA NA NA ND(0.0010) NA1,3-Dichlorobenzene NA NA NA NA 0.00018 J NA1,4-Dichlorobenzene NA NA NA NA 0.0015 NABromodichloromethane NA NA NA NA ND(0.0010) NAChlorobenzene NA NA NA NA 0.00017 J NAChloroethane NA NA NA NA ND(0.0010) NAChloroform NA NA NA NA 0.00092 J NAMethylene Chloride NA NA NA NA 0.00020 J NAToluene NA NA NA NA 0.0014 NAVinyl Chloride NA NA NA NA ND(0.0010) NAPCBs-UnfilteredAroclor-1248 0.000019 NA NA NA NA ND(0.000016)Aroclor-1254 0.000018 NA NA NA NA 0.000019Aroclor-1260 0.000017 NA NA NA NA ND(0.000016)Total PCBs 0.000054 NA NA NA NA 0.000019Semivolatile OrganicsNone Detected NA NA NA -- NA NAConventionalOil & Grease NA NA ND(4.1) NA NA NATotal Suspended Solids NA 8.40 NA NA NA NA






Sample ID: 006D-1Q2M-2X-GO 006D-1Q2M-2X-GS 006D-1Q2M-2X-GV 64G-1Q2M-1X-CP 64G-1Q2M-1X-CT 64G-1Q2M-1X-GOParameter Date Collected: 02/12/15 02/12/15 02/17/15 02/02/15 02/02/15 02/02/15Volatile Organics1,1-Dichloroethane NA NA ND(0.0010) NA NA NA1,3-Dichlorobenzene NA NA 0.00018 J NA NA NA1,4-Dichlorobenzene NA NA 0.0014 NA NA NABromodichloromethane NA NA 0.00015 J NA NA NAChlorobenzene NA NA 0.00015 J NA NA NAChloroethane NA NA ND(0.0010) NA NA NAChloroform NA NA 0.00085 J NA NA NAMethylene Chloride NA NA ND(0.0010) NA NA NAToluene NA NA 0.0012 NA NA NAVinyl Chloride NA NA ND(0.0010) NA NA NAPCBs-UnfilteredAroclor-1248 NA NA NA ND(0.000015) NA NAAroclor-1254 NA NA NA ND(0.000015) NA NAAroclor-1260 NA NA NA ND(0.000015) NA NATotal PCBs NA NA NA ND(0.000015) NA NASemivolatile OrganicsNone Detected NA NA NA NA NA NAConventionalOil & Grease ND(4.0) NA NA NA NA ND(4.1)Total Suspended Solids NA NA NA NA ND(1.00) NA






Sample ID: 64G-1Q2M-1X-GS 64G-1Q2M-1X-GV 64G-1Q2M-2X-CP 64G-1Q2M-2X-CT 64G-1Q2M-2X-GO 64G-1Q2M-2X-GS 64G-1Q2M-2X-GVParameter Date Collected: 02/02/15 02/02/15 02/09/15 02/09/15 02/09/15 02/09/15 02/09/15Volatile Organics1,1-Dichloroethane NA 0.00046 J NA NA NA NA 0.00049 J1,3-Dichlorobenzene NA ND(0.0010) NA NA NA NA ND(0.0010)1,4-Dichlorobenzene NA ND(0.0010) NA NA NA NA ND(0.0010)Bromodichloromethane NA ND(0.0010) NA NA NA NA ND(0.0010)Chlorobenzene NA ND(0.0010) NA NA NA NA ND(0.0010)Chloroethane NA 0.00052 J NA NA NA NA 0.00065 JChloroform NA ND(0.0010) NA NA NA NA ND(0.0010)Methylene Chloride NA 0.00028 J NA NA NA NA ND(0.0010)Toluene NA ND(0.0010) NA NA NA NA ND(0.0010)Vinyl Chloride NA 0.00014 J NA NA NA NA ND(0.0010)PCBs-UnfilteredAroclor-1248 NA NA ND(0.000015) NA NA NA NAAroclor-1254 NA NA ND(0.000015) NA NA NA NAAroclor-1260 NA NA ND(0.000015) NA NA NA NATotal PCBs NA NA ND(0.000015) NA NA NA NASemivolatile OrganicsNone Detected -- NA NA NA NA -- NAConventionalOil & Grease NA NA NA NA ND(4.1) NA NATotal Suspended Solids NA NA NA ND(1.00) NA NA NA






Sample ID: 64TD-1Q1M-2X-CT 64TD-1Q2M-1X-CP 64TD-1Q2M-1X-CT 64TD-1Q2M-1X-GO 64TD-1Q2M-2X-CP 64TD-1Q2M-2X-GOParameter Date Collected: 02/13/15 02/07/15 02/07/15 02/07/15 02/13/15 02/12/15Volatile Organics1,1-Dichloroethane NA NA NA NA NA NA1,3-Dichlorobenzene NA NA NA NA NA NA1,4-Dichlorobenzene NA NA NA NA NA NABromodichloromethane NA NA NA NA NA NAChlorobenzene NA NA NA NA NA NAChloroethane NA NA NA NA NA NAChloroform NA NA NA NA NA NAMethylene Chloride NA NA NA NA NA NAToluene NA NA NA NA NA NAVinyl Chloride NA NA NA NA NA NAPCBs-UnfilteredAroclor-1248 NA 0.000043 NA NA ND(0.000015) NAAroclor-1254 NA 0.000033 NA NA 0.000021 NAAroclor-1260 NA 0.000029 NA NA ND(0.000015) NATotal PCBs NA 0.000105 NA NA 0.000021 NASemivolatile OrganicsNone Detected NA NA NA NA NA NAConventionalOil & Grease NA NA NA ND(4.1) NA ND(4.0)Total Suspended Solids ND(1.00) NA ND(1.00) NA NA NA

Notes:

1. Samples were collected by General Electric Company, and were submitted to ALS Environmental and SGS Environmental Services, Inc. for analysis of volatiles, PCBs, semivolatiles, oil & grease and total suspended solids.

2. NA - Not Analyzed.3. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.4. Only those constituents detected in one or more samples are summarized.

Data Qualifiers:

Organics (volatiles, PCBs semivolatiles)J - Indicates an estimated value between the method detection limit (MDL) and method reporting limit (MRL) - ALSJ1 - Indicates an estimated value less than the practical quantitation limit (PQL). - SGS Environmental Services, Inc.



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