post-closure groundwater monitoring event … · 2020. 9. 1. · barbara landau, noble &...

249
Transmitted via Overnight Delivery July 25 , 2014 Mr. Richard Fisher U.S. Environmental Protection Agency 5 Post Office Square - Suite 1 00 Boston, Massachusetts 021 09-3 912 Re: GE-Pittsfield/Housatonic River Site On-Plant Consolidation Areas (GECD210/220) Post-Closure Groundwater Monitoring Program Monitoring Event Evaluation Report for Spring 2014 Dear Mr. Fisher: GE Cor porat e 159 Plastics Ave nue Pitt sfiel d, MA 01 20 1 USA Enclosed is the Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014 (Spring 2014 OPCA Groundwater Monitoring Report). This report was prepared in accordance with Attachment C to the final Revised Post-Removal Site Control Plan for Hill 78 and Building 71 On-Plant Consolidation Areas, which was included as Appendix H to the September 15, 2011 Final Completion Report- On-Plant Consolidation Areas. The Spring 2014 OPCA Groundwater Monitoring Report summarizes the activities performed under the OPCA post-closure groundwater monitoring program in spring 2014, presents the results of the latest round of sampling and analysis of groundwater performed at the OPCA monitoring wells, and provides an assessment of those results. Please call me if you have any questions regarding this report. Richard W. Gates Senior Project Manager - Environmental Remediation Enclosure Coq>Orvte En 'ironn1entat Prcgt ':l ms

Upload: others

Post on 19-Sep-2020

7 views

Category:

Documents


0 download

TRANSCRIPT

Page 1: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

• Transmitted via Overnight Delivery

July 25 , 2014

Mr. Richard Fisher U.S. Environmental Protection Agency 5 Post Office Square - Suite 1 00 Boston, Massachusetts 021 09-3 912

Re: GE-Pittsfield/Housatonic River Site On-Plant Consolidation Areas (GECD210/220) Post-Closure Groundwater Monitoring Program Monitoring Event Evaluation Report for Spring 2014

Dear Mr. Fisher:

GE Corporate

159 Plastics Avenue Pittsfield, MA 01 201 USA

Enclosed is the Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014 (Spring 2014 OPCA Groundwater Monitoring Report). This report was prepared in accordance with Attachment C to the final Revised Post-Removal Site Control Plan for Hill 78 and Building 71 On-Plant Consolidation Areas, which was included as Appendix H to the September 15, 2011 Final Completion Report- On-Plant Consolidation Areas.

The Spring 2014 OPCA Groundwater Monitoring Report summarizes the activities performed under the OPCA post-closure groundwater monitoring program in spring 2014, presents the results of the latest round of sampling and analysis of groundwater performed at the OPCA monitoring wells, and provides an assessment of those results.

Please call me if you have any questions regarding this report.

Richard W. Gates Senior Project Manager - Environmental Remediation

Enclosure

Coq>Orvte En 'ironn1entat Prcgt ':lms

Page 2: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

cc: Dean Tagliaferro, EPA John Kilborn, EPA* Christopher Ferry, ASRC Primus** Robert Leitch, USACE** Michael Gorski, MDEP** Eva Tor, MDEP** John Ziegler, MDEP (2 copies + CD) Linda Palmieri, Weston (2 copies+ CD) Nancy E. Harper, MA AG* Karen Pelto, MDEP* Doug Clark, Director, City of Pittsfield Dept. of Community Development** Corydon Thurston, Executive Director, PEDA Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss, ARCADIS James Bieke, Sidley Austin John Ciampa, SPECTRA Public Information Repositories GE Internal Repository

* cover letter only

* * cover letter and CD of report

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Prcsentations\GW Mon Rpt Spring 2014\2251411324CvrLtr.doc

Mr. Richard Fisher July 25, 2014

Page 2 of2

Page 3: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

General Electric Company Pittsfield, Massachusetts

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014

July 2014

Page 4: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014 General Electric Company Pittsfield, Massachusetts

Prepared for:

General Electric Company

Pittsfield, Massachusetts

Prepared by:

ARCADIS of New York, Inc.

6723 Towpath Road

Syracuse

New York 13214-0066

Tel 315.446.9120

Fax 315.449.0017

Our Ref.:

B0031202.0001

Date:

July 25, 2014

Page 5: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc i

Table of Contents

1.  Introduction 1 

1.1  General 1 

1.2  Background Information 2 

1.2.1  Description of the OPCAs 2 

1.2.2  Overview of Groundwater Investigation Activities at the OPCAs 3 

1.3  Format of Document 5 

2.  Spring 2014 Field and Analytical Procedures 6 

2.1  General 6 

2.2  Groundwater Level Measurement and LNAPL Monitoring 6 

2.3  Groundwater Sampling and Analysis 7 

2.3.1  OPCA Sampling 7 

2.3.2  Pittsfield Generating Company Sampling 10 

2.4  Monitoring Well Inspections and Repairs 10 

3.  Spring 2014 Groundwater Analytical Results 11 

3.1  General 11 

3.2  Groundwater Quality Results 11 

3.2.1  VOC Results 11 

3.2.2  SVOC Results 11 

3.2.3  PCB Results 12 

3.2.4  PCDD/PCDF Results 12 

3.2.5  Inorganic Constituent Results 12 

3.3  Pittsfield Generating Facility Sample Results 13 

4.  Assessment of Groundwater Quality 14 

4.1  General 14 

4.2  Groundwater Quality Performance Standards 14 

4.3  Groundwater Quality – Spring 2014 17 

4.3.1  Spring 2014 Groundwater Results Relative to GW-2 Performance Standards 17 

Page 6: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc ii

Table of Contents

4.3.2  Spring 2014 Groundwater Results Relative to GW-3 Standards 18 

4.3.3  Spring 2014 Comparison to Upper Concentration Limits 18 

4.4  Overall Assessment of Groundwater Analytical Results 19 

4.4.1  Comparison of Spring 2014 Analytical Results to Prior Groundwater Data 19 

4.4.2  Evaluation of Variability in Data 23 

4.4.3  Evaluation of Analytical Data Summary Statistics 23 

4.5  Pittsfield Generating Company Supply Well Data 26 

4.6  NAPL Monitoring Results 26 

5.  Monitoring Program Modifications and Schedule of Future Activities 27 

5.1  General 27 

5.2  Evaluation of the Need for Follow-up Investigations, Interim Response Actions, or Other Monitoring Program Modifications 27 

5.2.1  Evaluation of Data in Relation to GW-2 Standards 28 

5.2.2  Evaluation of Data in Relation to GW-3 Standards 31 

5.3  Field Activities Schedule 33 

5.4  Reporting Schedule 34 

Page 7: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc iii

Table of Contents

Tables

1 Groundwater Quality Monitoring Program Summary

2 Groundwater Elevation Monitoring Program Summary

3 Monitoring Well Construction Summary

4 Groundwater Elevation Data – Spring 2014

5 Field Parameter Measurements – Spring 2014

6 Comparison of Groundwater Analytical Results to MCP Method 1 GW-2 Standards

7 Comparison of Groundwater Analytical Results to GW-2 Benchmark Levels

8 Comparison of Groundwater Analytical Results to MCP Method 1 GW-3 Standards

9 Comparison of Groundwater Analytical Results to MCP UCLs for Groundwater

10 Summary of Historical Groundwater Analytical Results for Constituents Subject to Reductions in MCP Method 1 Standards or UCLs for Groundwater

Figures

1 On-Plant Consolidation Areas Site Plan

2 Monitoring Well Locations

3 Water Table Contour Map – Spring 2014

Appendices

A Groundwater Elevation Monitoring, Sampling, and Well Maintenance Data– Spring 2014

B Data Validation Report

C Groundwater Analytical Results – Spring 2014

D Pittsfield Generating Company Groundwater Analytical Data

E Historical Groundwater Data

Page 8: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 1

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

1. Introduction

1.1 General

On October 27, 2000, a Consent Decree (CD) executed in 1999 by the General Electric

Company (GE), the United States Environmental Protection Agency (EPA), the Massachusetts Department of Environmental Protection (MDEP), and several other government agencies was entered by the United States District Court for the District of

Massachusetts. The CD governs (among other things) the performance of response actions to address polychlorinated biphenyls (PCBs) and other hazardous constituents in soil, sediment, and groundwater in several Removal Action Areas (RAAs) and Groundwater

Management Areas (GMAs) located in or near Pittsfield, Massachusetts that collectively comprise the GE-Pittsfield/Housatonic River Site (the Site).

In accordance with the CD and the Detailed Work Plan for the On-Plant Consolidation Areas (Detailed OPCA Work Plan) attached to the CD, GE designed, constructed, and operated two On-Plant Consolidation Areas (OPCAs) at the GE Plant Area at the Site – the

Hill 78 OPCA and the Building 71 OPCA. In connection with the design of the CD, GE developed and implemented a groundwater monitoring program for the OPCAs. Beginning in 2002, this program was incorporated into the groundwater monitoring program for the

Plant Site 3 Groundwater Management Area (also known as GMA 4), which encompassed the OPCAs and adjacent areas. That program continued while the OPCAs were in operation. Final closure activities for the OPCAs were completed in September 2009.

In accordance with Sections 8.3 and 9.2 of the Detailed OPCA Work Plan and directives from EPA, to assess potential groundwater impacts from the OPCAs following their closure,

GE developed a long-term post-closure monitoring program specific to the OPCAs, which would be implemented separately from the GMA 4 monitoring program. That program was initially proposed in a Post-Removal Site Control Plan for the OPCAs submitted in August

2008, and in response to an EPA conditional approval letter dated November 8, 2010, was modified in a revised Post-Removal Site Control Plan submitted on January 6, 2011. In accordance with a subsequent conditional approval letter dated June 2, 2011, that program

was revised again; and GE’s final Revised Post-Closure Groundwater Monitoring Plan for Hill 78 and Building 71 On-Plant Consolidation Areas (Post-Closure Groundwater Monitoring Plan) was submitted as Attachment C to the final Revised Post-Removal Site

Control Plan for Hill 78 and Building 71 On-Plant Consolidation Areas (Revised PRSC Plan), which was included as Appendix H to the Final Completion Report - On-Plant Consolidation Areas (Final Completion Report), submitted on September 15, 2011. EPA

provided approval of the Final Completion Report, including the final Post-Closure Groundwater Monitoring Plan, by letter of September 26, 2011.

Page 9: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 2

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

As part of the post-closure groundwater monitoring program, GE is required to monitor groundwater elevations and collect groundwater samples on a semi-annual basis, and to

submit reports after each groundwater sampling event to summarize the groundwater monitoring results and related activities and, as appropriate, propose modifications to the monitoring program. GE commenced implementation of this separate post-closure

groundwater monitoring program for the OPCAs in fall 2011. The results of the most recent round of groundwater-related activities performed at and near the OPCAs in fall 2013 were presented in GE’s March 7, 2014 Post-Closure Groundwater Monitoring Event Evaluation

Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Fall 2013 (Fall 2013 OPCA Groundwater Monitoring Report), which was conditionally approved by EPA in a letter to GE dated May 8, 2014.

This Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014 (Spring 2014 OPCA Groundwater

Monitoring Report), presents the results of groundwater sampling activities performed at the OPCA monitoring wells in April and May 2014, as well as other groundwater-related activities performed at and near the OPCAs, between January and June 2014.1

1.2 Background Information

1.2.1 Description of the OPCAs

In accordance with the CD, the Hill 78 and Building 71 OPCAs were constructed and

utilized for the consolidation of materials (e.g., soil, sediment, debris, etc.) generated during the performance of various response actions conducted by both GE and EPA, as well as certain demolition and related activities conducted by GE, at several locations at the Site.

The Building 71 OPCA contains waste material generated at the Site that is subject to regulation under the Toxic Substances Control Act (TSCA) – i.e., containing PCBs at concentrations at or above 50 parts per million (ppm) – and/or constitutes hazardous waste

under the Resource Conservation and Recovery Act (RCRA). The Hill 78 OPCA contains waste material generated at the Site that contains less than 50 ppm PCBs, as determined by an appropriate composite sampling technique or other technique approved by EPA, and

does not constitute hazardous waste under RCRA.

The OPCA RAAs include the OPCAs themselves (i.e. areas comprising the consolidated

materials and final cover limits) along with certain associated areas (i.e. stormwater basins and other areas), as illustrated on Figure 1. These RAAs are located in the central part of

1 GE’s most recent report on groundwater monitoring activities at GMA 4, entitled Groundwater Management Area 4 Long-Term Monitoring Program Monitoring Event Evaluation Report for Spring 2014 is being submitted concurrently with this Spring 2014 OPCA Groundwater Monitoring Report.

Page 10: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 3

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

the GE Plant Area, within a portion of Tax Parcel K11-7-2, and together cover an area of approximately 12.15 acres, of which the Hill 78 OPCA occupies approximately 6.0 acres,

the Building 71 OPCA occupies approximately 4.4 acres, the stormwater basins occupy approximately 1.1 acres, and the other areas occupy approximately 0.65 acre. Additional ancillary features, including paved access roads, leachate collection facilities, and a surface

water drainage system, are located outside the boundaries of the OPCA RAAs, as depicted on Figure 1. As also shown on Figure 1, although the Hill 78 and Building 71 OPCA RAAs constitute separate RAAs under the CD, they are physically located within the boundaries of

the Hill 78 Area-Remainder RAA.

GE performed numerous activities to design, construct, utilize, and close the Hill 78 and

Building 71 OPCAs, as described in the Final Completion Report for the OPCAs. Consolidation activities and the final closure of the Building 71 OPCA were completed in October 2006, while consolidation activities and the final closure of the Hill 78 OPCA were

completed in September 2009, with certain restoration activities completed in April 2010.

1.2.2 Overview of Groundwater Investigation Activities at the OPCAs

As noted above, in connection with the design of the OPCAs, GE developed a groundwater monitoring program to be implemented during the operation of the OPCAs. This program

was designed to periodically assess groundwater conditions near the OPCAs, compare current conditions with those observed during previous monitoring activities, and identify potential changes in groundwater conditions that may be related to the consolidation

activities or the OPCAs.

GE performed a baseline groundwater investigation at the OPCA monitoring wells in June

1999 to provide information on existing groundwater conditions prior to the onset of consolidation activities, and to serve as a basis for comparison for future groundwater monitoring results. The baseline groundwater investigation involved the sampling and

analysis of 12 monitoring wells (78-1, 78-6, H78B-15, NY-4, and OPCA-MW-1 through OPCA-MW-8) selected to provide spatial representation on all sides of the consolidation areas (i.e. upgradient, downgradient, and cross-gradient). The baseline groundwater

investigation included the analysis of groundwater samples for PCBs and for the non-PCB constituents listed in Appendix IX of 40 CFR Part 264 (excluding pesticides and herbicides), plus three additional constituents – benzidine, 2-chloroethylvinyl ether, and 1,2-

diphenyhydrazine (Appendix IX+3).

Following the completion of the baseline groundwater investigation and a January 30, 2001

conditional approval letter from EPA for the OPCA groundwater monitoring program, GE implemented a semi-annual groundwater monitoring program of groundwater level measurements, groundwater sampling, and laboratory analyses at the 12 monitoring wells

included in the baseline assessment, as well as preparation of summary reports.

Page 11: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 4

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

Separate from the OPCA groundwater monitoring program, GE also implemented a groundwater and non-aqueous-phase liquid (NAPL) monitoring program for GMA 4, which

encompasses the OPCAs and adjacent areas. In its July 2001 Baseline Monitoring Program Proposal for Plant Site 3 Groundwater Management Area (GMA 4 Baseline Monitoring Program Proposal), GE proposed to incorporate the results of the OPCA

groundwater monitoring program into reports prepared for GMA 4 as a whole. EPA conditionally approved this proposal in a letter dated December 28, 2001 and the GMA 4 baseline groundwater monitoring program was initiated in the spring of 2002. Following

initiation of the GMA 4 baseline monitoring program, GE no longer prepared OPCA-specific reports, but included all required groundwater-related information and evaluations pertaining to the OPCAs in the GMA 4 semi-annual baseline groundwater quality interim

reports.

The baseline monitoring program for GMA 4 initially included four baseline sampling events

in 2002 and 2003. The fall 2003 sampling event constituted the fourth baseline sampling event at most of the wells in GMA 4. Modifications made to the OPCA monitoring well network and approved by EPA during the baseline monitoring program resulted in the

replacement of two monitoring wells (OPCA-MW-1R for OPCA-MW-1 and OPCA-MW-5R for OPCA-MW-5) and the installation and sampling of new well GMA4-6 as a replacement for monitoring well NY-4. The Groundwater Management Area 4 Baseline Groundwater

Quality and NAPL Monitoring Interim Report for Fall 2003 (Fall 2003 GMA 4 Groundwater Quality Report) contained a proposal to modify and extend baseline groundwater quality monitoring activities at GMA 4 (under a program referred to as the interim monitoring

program) until such time as the soil-related remediation actions at the RAAs within GMA 4 were completed and the specific components of a long-term groundwater quality monitoring program were determined. EPA conditionally approved the Fall 2003 GMA 4 Groundwater

Quality Report by letter dated May 19, 2004. GE initiated the interim monitoring program (which included OPCA groundwater monitoring activities) during the spring 2004 sampling event and, with certain EPA-approved modifications, continued that program through the

spring 2011 sampling event. As part of the interim monitoring program, GE replaced OPCA monitoring program wells OPCA-MW-1R, OPCA-MW-2, and OPCA-MW-8 with wells OPCA-MW-1RR, OPCA-MW-2R, and OPCA-MW-8R, respectively.

Consolidation and final cover activities at the OPCAs were completed in 2009. As discussed in Section 1.1, GE developed a long-term post-closure groundwater monitoring

program specific to the OPCAs, which would be implemented separately from the GMA 4 groundwater monitoring program and would include the submission of separate reports specific to the OPCA program. In accordance with EPA’s June 2, 2011 conditional approval

letter, GE initiated plans to implement this separate groundwater monitoring program in the fall of 2011.

Page 12: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 5

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

On September 15, 2011, GE submitted the Final Completion Report to EPA, which contained GE’s Revised PRSC Plan for the OPCAs, including the Post-Closure

Groundwater Monitoring Plan. Beginning with the fall 2011 sampling event, sampling of the OPCA monitoring wells was conducted under the OPCA post-closure monitoring program, instead of as part of the GMA 4 monitoring program. The 12 OPCA monitoring wells that

are currently sampled for groundwater quality as part of the post-closure monitoring program are shown on Figure 2.

Groundwater from deep bedrock wells installed near the OPCAs is utilized for industrial purposes at the Pittsfield Generating Company (PGC) power generation facility located just south of the OPCAs (see Figure 1) and operated by PGC under a ground lease from GE.

Currently, personnel acting on behalf of PGC collect groundwater samples from an existing bedrock supply well (ASW-5, which serves as its primary source of cooling water) for analysis of PCBs and volatile organic compounds (VOCs), in accordance with an existing

permitted program. This well is located near the southwest corner of the steam turbine generator building, as illustrated on Figure 2. As required by EPA, GE is to include the analytical results provided on behalf of PGC for samples collected from well ASW-5 in its

OPCA groundwater monitoring program reports. The current PGC analytical results are discussed in Sections 3.3 and 4.5 of this report.

1.3 Format of Document

The remainder of this report is presented in four sections. Section 2 describes the activities

performed under the OPCA post-closure groundwater monitoring program in spring 2014. Section 3 presents the analytical results obtained during the spring 2014 groundwater sampling event and the results from PGC’s bedrock supply well sampling. Section 4

provides a summary of the applicable groundwater quality Performance Standards identified in the CD and associated Statement of Work for Removal Actions Outside the River (SOW) and provides an assessment of the results of the spring 2014 activities,

including a comparison to the Performance Standards and benchmark levels. A comparison of the recent monitoring results to prior OPCA-related monitoring data is also provided. Finally, Section 5 provides an assessment of the need for follow-up

investigations, response actions, or modifications to the monitoring program; and it summarizes the schedule for future field and reporting activities related to groundwater quality in the area around the OPCAs.

Page 13: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 6

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

2. Spring 2014 Field and Analytical Procedures

2.1 General

The activities conducted as part of the OPCA post-closure groundwater monitoring program during spring 2014, and summarized herein, primarily involved the measurement of

groundwater levels and the collection and analysis of groundwater samples at select monitoring wells surrounding the OPCAs, as described in Tables 1 and 2. In addition, GE performed inspection of the monitoring wells and, where necessary, other well maintenance

activities. The construction details of the wells that were monitored and/or sampled at the OPCAs in spring 2014 are provided in Table 3. This section discusses the field procedures used to conduct those field activities and the methods used to analyze the groundwater

samples. All activities were performed in general accordance with GE’s approved Field Sampling Plan/Quality Assurance Project Plan (FSP/QAPP), dated July 2013.

2.2 Groundwater Level Measurement and LNAPL Monitoring

The spring 2014 groundwater elevation monitoring event in the OPCA area was conducted

on April 23, 2014. Groundwater elevation data were recorded at the 23 monitoring wells required to be monitored on a semi-annual basis as part of the OPCA post-closure groundwater monitoring program (as listed in Table 2). GE also performed groundwater

elevation monitoring in adjacent portions of GMA 1 and GMA 4; and EPA collected groundwater elevation data from EPA-installed monitored piezometers PZ-1, PZ-2, PZ-3, and PZ-4, along with data from existing monitoring well SCH-1, located on or adjacent to

the Allendale School property, as shown on Figure 2. The semi-annual monitoring event was coordinated with EPA so that both EPA-monitored and GE-monitored wells were gauged on the same day to provide concurrent data for contouring purposes. Groundwater

elevations were measured at the wells shown in Table 2, and the data collected during the semi-annual monitoring event are provided in Table 4. All groundwater elevation data collected from the OPCA post-closure groundwater monitoring program wells during spring

2014 are summarized Table A-1 of Appendix A.

The spring 2014 groundwater elevations were, on average, approximately 0.43 foot higher

than the elevations measured during the spring 2013 monitoring event at the 12 wells that are sampled as part of the OPCA post-closure groundwater monitoring program and approximately 0.71 foot higher than the elevations measured during the spring 2013

monitoring event at all of the wells in the area that were monitored during both seasons. Table 4 summarizes the groundwater elevation monitoring data for the spring 2014 monitoring event. The groundwater elevation data shown in that table were used to prepare

a groundwater elevation contour map for fall 2014 (Figure 3). As shown on Figure 3, the

Page 14: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 7

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

groundwater flow directions are generally consistent with those observed during previous seasonal monitoring events in this area. Specifically, groundwater generally flows from

north to south, although variations exist corresponding to changes in the topography of the ground surface and/or the underlying glacial till interface.

The EPA monitoring data from the Allendale School property are generally consistent with the GE data and prior groundwater elevation measurements. Groundwater elevations are highest at the locations adjacent to the school and decrease to the south (i.e., groundwater

flows from the Allendale School property toward the OPCAs), providing further confirmation that the OPCAs are downgradient from the Allendale School property. This is consistent with the groundwater contours presented in the GMA 4 and OPCA semi-annual reports

since spring 2008.

Prior to June 2003, weekly groundwater and light NAPL (LNAPL) measurements were

collected at well H78B-8R. LNAPL, if present, was recovered and properly disposed of. In June 2003, well H78B-8R was decommissioned in order to accommodate the expansion of the Hill 78 OPCA. This well (H78B-8R) was the only location within the OPCAs where

NAPL had been encountered. Since the removal of well H78B-8R, particular attention has been given to well OPCA-MW-2 (until its decommissioning in October 2007), replacement well OPCA-MW-2R (following installation in July 2008), and well OPCA-MW-3 (located

downgradient from former well H78B-8R) when groundwater measurements and samples were obtained. No NAPL has ever been observed at any of these monitoring wells.

2.3 Groundwater Sampling and Analysis

2.3.1 OPCA Sampling

The spring 2014 post-closure sampling event was performed between April 7, 2014 and May 9, 2014 at the 12 groundwater quality monitoring wells associated with the OPCA post-

closure monitoring program (listed in Table 1 and shown on Figure 2). Eight of the OPCA monitoring wells were sampled for all constituents between April 8, 2014 and April 10, 2014, using low-flow sampling techniques. Wells OPCA-MW-4, OPCA-MW-5R, and OPCA-MW-7

were purged dry on April 7, 2014 and sampled for non-VOC constituents on April 8, 2014. Passive diffusion bags (PDB) were placed in OPCA-MW-4, OPCA-MW-5R, OPCA-MW-7, and OPCA-MW-8R on April 25, 2014 and retrieved on May 9, 2014 to obtain samples for

VOC analysis. Non-VOC constituents were collected from well OPCA-MW-8R on April 9, 2014 using low-flow techniques, while a PDB was used to collect VOC samples from this well due to the degree of water level drawdown in the well during purging.

Apart from the VOC sampling at wells OPCA-MW-4, OPCA-MW-5R, OPCA-MW-7, and OPCA-MW-8R (discussed above), low-flow sampling techniques, using a bladder pump or

peristaltic pump, were utilized for the purging and collection of groundwater samples during

Page 15: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 8

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

this sampling event. The monitoring wells sampled using low-flow techniques were initially purged until field parameters (including temperature, pH, specific conductivity, turbidity,

dissolved oxygen, and, oxidation-reduction potential) stabilized prior to sample collection. The field parameter measurements collected by low-flow techniques are presented in Table 5 and the field sampling records are provided in Appendix A. A general summary of the

stabilized field measurement results recorded during the spring 2014 sampling event (excluding data from wells OPCA-MW-4, OPCA-MW-5R, and OPCA-MW-7, which were not sampled by low-flow techniques) is provided below.

Parameter Units

Range of Stabilized Readings at

Wells Purged by Low-Flow

Techniques

Temperature Degrees Celsius 5.5 to 12.1

pH Standard units 5.42 to 7.39

Specific Conductivity Millisiemens per centimeter 0.234 to 4.304

Turbidity Nephelometric turbidity units (NTU) 0.38 to 49.1

Dissolved Oxygen Milligrams per liter 0.38 to 9.95

Oxidation-Reduction Potential Millivolts -6.1 to 162.6

As shown above and in Table 5, turbidity levels stabilized below the target level of 50 NTU at all wells. This indicates that the low-flow sampling and measurement procedures utilized

during this sampling event were effective in obtaining representative groundwater samples with generally low turbidity. It should be noted that the field parameter data provided on the sampling records in Appendix A from the three wells that were not sampled using low-flow

techniques (OPCA-MW-4, OPCA-MW-5R, and OPCA-MW-7) were not collected under stable conditions due to the lack of available water in the well. As those wells were pumped or bailed dry, the well water was disturbed and ensuing parameters were not considered to

be representative of conditions in the wells and therefore not included in Table 5 or the summary above.

The stabilized pH range for this sampling event was from 5.42 to 7.39, which is within the acceptable range of 4.5 to 9.0 noted in Condition 1 of EPA’s April 8, 2008 letter to GE providing conditional approval of the Plant Site 1 Groundwater Management Area

Groundwater Quality Monitoring Interim Report for Fall 2007. These results indicate that no additional evaluation or data qualification for pH-sensitive parameter groups is necessary at any of the spring 2014 sampling locations.

It should also be noted that the water level drawdown during purging and sampling achieved the 0.3-foot displacement goal established in the FSP/QAPP in four of the 12

wells that were sampled in fall 2013 (wells 78-6R, GMA4-6, H78B-15, and OPCA-MW-6).

Page 16: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 9

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

Drawdown in five other wells (78-1, OPCA-MW-1RR, OPCA-MW-2R, OPCA-MW-3, and OPCA-MW-8R) stabilized at levels approximately 0.84 to 2.29 feet below their initial

measurements. In each of these cases, no additional steps were necessary to collect the samples once the water levels and other field parameters stabilized, except for well OPCA-MW-8R where a PDB was used for VOC samples. As mentioned above, wells OPCA-MW-

4, OPCA-MW-5R, and OPCA-MW-7 were purged dry before water levels stabilized and alternate sampling techniques were utilized.

In accordance with Condition 1 of EPA’s January 27, 2009 approval letter for the

Groundwater Management Area 4 Spring 2008 Groundwater Quality Interim Monitoring Report (Spring 2008 GMA 4 Groundwater Quality Report), GE recorded the river flow in the

East Branch of the Housatonic River, as measured at Coltsville gaging station, during each date in spring 2014 when groundwater elevation monitoring or sampling was conducted at the OPCA wells and has included those flow (discharge) data in Appendix A (Table A-2).

The maximum river flow rates ranged from a high of 528 cubic feet per second (cfs) on April 8, 2014 to a low of 87 cfs on April 25, 2014.

The collected groundwater samples were submitted to SGS Environmental Services Inc. (SGS), located in Wilmington, North Carolina, for laboratory analysis. Groundwater samples collected during this sampling event were submitted for analysis of the following

constituents using the associated EPA methods:

Constituent EPA Method

Volatile Organic Compounds (VOCs) 8260B

Semi-Volatile Organic Compounds (SVOCs) 8270C

PCBs (Filtered Samples) 8082

Polychlorinated Dibenzo-p-dioxins and Polychlorinated Dibenzofurans (PCDDs/PCDFs)

8290

Metals (Filtered Samples) 6010B, 7000A, and 7470A

Physiologically Available Cyanide (Filtered Samples)

9014/MDEP PAC Protocol

Sulfide 9034

Following receipt of the analytical data on the GE samples from the laboratory, the preliminary results were reviewed for completeness and compared to the Massachusetts

Contingency Plan (MCP) Method 1 GW-2 standards (where applicable) and GW-3 standards, and to the MCP Upper Concentration Limits (UCLs) for groundwater. The preliminary analytical results were presented in the monthly report on overall activities at the

GE-Pittsfield/Housatonic River Site.

Page 17: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 10

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

The laboratory data were validated in accordance with the approved FSP/QAPP (July 2013), and the validation report is provided as Appendix B. As discussed in the validation

report, 99.9% of the spring 2014 groundwater quality data are considered to be useable, which is greater than the minimum required usability of 90% as specified in the FSP/QAPP. The SVOC, PCB, PCDD/PCDF, metals, sulfide and physiologically available cyanide

sample results were each found to be 100% usable, while the VOC sample results were found to be 99.9% usable. The only rejected data point was the 2-chloroethylvinylether sample result from well GMA4-6, which was rejected due to MS/MSD recovery deviations.

The validated analytical results (presented in Appendix C) were utilized in the preparation of this report and are summarized in Section 3 and discussed in Section 4 below.

2.3.2 Pittsfield Generating Company Sampling

In accordance with PGC’s existing permitted program, personnel acting on behalf of PGC

currently collect groundwater samples for analysis of VOCs and PCBs from PGC’s deep bedrock groundwater extraction well (well ASW-5, screened at approximately 441 to 457 feet below ground surface). This well serves as the primary source of cooling water for the

PGC plant. GE has included the analytical results provided on behalf of PGC for samples collected from ASW-5 on June 10, 2014 in this report, as well as a comparison of these data to historical results. A summary of well ASW-5 monitoring results is provided in Table

D-1 within Appendix D. These results are discussed in Sections 3.3 and 4.5.

2.4 Monitoring Well Inspections and Repairs

In spring 2014, monitoring well maintenance evaluations were performed at all wells sampled during the post-closure groundwater sampling event and at all other wells where

groundwater elevation monitoring was scheduled. Any maintenance needs (e.g., replacement of bolts, locks, or well caps) were listed in the comments section of the groundwater sampling field logs or monitoring forms. Wells where major maintenance

needs (e.g., repairs to surface completion, modifications made to inner casing) were identified were flagged for performance of a formal well inventory. Wells where the measured total depth varied by more than one foot from the listed specifications were also

flagged for re-development to remove sediment accumulations.

A summary of the identified well maintenance needs and the status of repairs completed by

GE is provided in Table A-3 of Appendix A. As seen in that table, all issues that were noted during the maintenance inspections have been addressed by GE.

Page 18: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 11

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

3. Spring 2014 Groundwater Analytical Results

3.1 General

A description of the spring 2014 groundwater analytical results is presented in this section.

Table C-1 in Appendix C presents the complete analytical data set (including constituents detected and not detected) for the groundwater samples analyzed during this sampling event. An assessment of these results relative to the applicable groundwater quality

Performance Standards and the UCLs for groundwater is provided in Section 4.3, with supporting comparisons provided in Tables 6 through 9. Note that Tables 8 and 9, discussed in Section 4.3, include a summary of the concentrations of detected constituents

for all wells sampled in spring 2014.

3.2 Groundwater Quality Results

The following subsections provide an overview of the spring 2014 analytical results from the OPCA groundwater quality monitoring wells for each constituent group that was analyzed.

3.2.1 VOC Results

A total of 12 groundwater samples were collected and analyzed for VOCs during the spring 2014 sampling event. The VOC analytical results are summarized in Tables 8 and 9 and Table C-1 (in Appendix C). No VOCs were detected in wells 78-1, GMA4-6, H78B-15,

OPCA-MW-2R, OPCA-MW-3, OPCA-MW-6, OPCA-MW-7, or OPCA-MW-8R. At the four wells where VOCs were detected, total VOC concentrations ranged from an estimated concentration of 0.00036 ppm (at well OPCA-MW-4) to a concentration of 2.4 ppm (at well

OPCA-MW-1RR). A total of six individual VOCs were detected in one or more wells. Trichloroethene (TCE) was the most frequently detected VOC. Specifically, TCE was detected at two monitoring wells (OPCA-MW-1RR and OPCA-MW-4). Chloroform and

tetrachloroethene (PCE) were detected at well OPCA-MW-1RR. Trace concentrations of chlorobenzene and acetone (a common laboratory contaminant) were detected at wells OPCA-MW-5R and 78-6R, respectively.

3.2.2 SVOC Results

A total of 12 groundwater samples were collected and analyzed for SVOCs during spring 2014 sampling event. The SVOC analytical results are summarized in Tables 8 and 9 and Table C-1 (in Appendix C). No SVOCs were detected in any OPCA wells during the spring

2014 sampling round.

Page 19: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 12

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

3.2.3 PCB Results

Filtered groundwater samples from 12 wells were analyzed for PCBs as part of the spring 2014 sampling event. The PCB analytical results are summarized in Tables 8 and 9 and Table C-1 (in Appendix C). PCBs were only detected in one well (monitoring well OPCA-

MW-4 at a concentration of 0.00031 ppm) during the spring 2014 sampling round.

3.2.4 PCDD/PCDF Results

Groundwater samples collected from 12 monitoring wells were analyzed for PCDDs/PCDFs during the spring 2014 sampling event. The PCDD/PCDF analytical results are

summarized in Tables 8 and 9 and Table C-1 (in Appendix C). In addition, total Toxicity Equivalency Quotient (TEQ) concentrations were calculated for the PCDD/PCDF compounds using the Toxicity Equivalency Factors (TEFs) issued by the World Health

Organization (WHO) in 1998, as provided in the SOW. In calculating those TEQs, the concentrations of individual PCDD/PCDF compounds that were not detected were represented as one-half of the analytical detection limit for those compounds, thus allowing

TEQs to be developed for all wells, including wells H78B-15, OPCA-MW-2R, and OPCA-MW-3 where no PCDD/PCDF compounds were detected. Total TEQ concentrations ranged from 8.3x10-10 ppm in the sample from well 78-6R to 2.6x10-9 ppm in the sample

from well OPCA-MW-5R.

3.2.5 Inorganic Constituent Results

Filtered groundwater samples were obtained from 12 monitoring wells for analysis of metals and physiologically available cyanide (PAC) during the spring 2014 sampling event. In

addition, unfiltered samples from the 12 wells were analyzed for sulfide. The analytical results for these inorganic constituents are summarized in Tables 8 and 9 and Table C-1 (in Appendix C). Nine metals were detected in the filtered samples. Cadmium and zinc (each

detected in six monitoring wells) were the most frequently detected metals, followed by thallium (detected in five wells), barium (detected in four wells), and chromium (detected in three monitoring wells). Beryllium, lead, nickel, and selenium were each detected in two

monitoring wells. Sulfide was only detected in well OPCA-MW-2R during the spring 2014 monitoring event. PAC was not detected in any well during the spring 2014 monitoring round.

Page 20: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 13

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

3.3 Pittsfield Generating Facility Sample Results

The results of the most recent deep bedrock groundwater sampling activities performed on behalf of PGC at industrial supply well ASW-5 (conducted on June 10, 2014), along with data from prior sampling events, are summarized in Table D-1 of Appendix D. No VOCs or

PCBs were detected in this well in Spring 2014.

Page 21: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 14

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

4. Assessment of Groundwater Quality

4.1 General

This section describes the applicable groundwater quality Performance Standards

established in the CD and SOW, and presents an assessment of spring 2014 groundwater analytical results relative to those Performance Standards and the UCLs for groundwater. In addition, this section includes a comparison of the spring 2014 monitoring results to prior

data from the OPCA monitoring wells, and it presents an overall evaluation of the data from those wells. The information presented in this section is based on the laboratory results obtained during the spring 2014 groundwater sampling event, supplemented with historical

groundwater analytical data when applicable.

4.2 Groundwater Quality Performance Standards

The applicable groundwater quality Performance Standards under the CD and SOW are based on the groundwater classification categories designated in the MCP (310 CMR

40.0932) that are relevant to the area around the OPCAs. These categories consist of GW-2 and GW-3 groundwater, defined as follows:

GW-2 groundwater is defined as groundwater that is a potential source of vapors to the indoor air of buildings. Groundwater is classified as GW-2 if it is located within 30 feet of an existing occupied building and has an average annual depth below ground

surface (bgs) of 15 feet or less. Under the MCP, volatile constituents present within GW-2 groundwater represent a potential source of organic vapors to the indoor air of the overlying and nearby occupied structures. Although none of the existing wells in

the OPCA post-closure monitoring program meets the GW-2 criteria, three OPCA wells that are positioned slightly over 30 feet upgradient of buildings are used for assessing compliance with the GW-2 standards, as discussed in Section 4.3.1 below. In addition,

as also discussed in Section 4.3.1, the post-closure groundwater monitoring program includes use of GW-2 standards as benchmark levels at all OPCA wells, even if they do not meet the GW-2 criteria, to assess the need for further actions to evaluate the

potential for vapor intrusion.

GW-3 groundwater consists of groundwater that is a potential source of discharge to

surface water. All groundwater at and near the OPCAs is classified as GW-3.

The MDEP has adopted default “Method 1” groundwater standards for these categories,

including GW-2 standards for a number of volatile constituents and GW-3 standards for a larger number of constituents. These standards are set forth in the MCP. The MCP also contains procedures for development of “Method 2” standards for constituents for which

Page 22: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 15

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

Method 1 standards do not exist. In response to an EPA directive, GE has derived Method 2 GW-3 standards for two constituents – cobalt and copper – for the GMAs at this Site; and

those Method 2 standards have been approved by EPA and used in GE’s evaluation of the spring 2014 analytical results from the OPCA post-closure monitoring program.

On June 20, 2014, MDEP implemented revised Method 1 numerical standards for a number of constituents in groundwater. Those revisions are summarized in the following table:

Parameter

MCP Method 1

GW-2 Standard

(ppm)

MCP Method 1

GW-3 Standard

(ppm)

MCP UCL for

Groundwater

(ppm)

2008 2014 2008 2014 2008 2014

1,1-Dichloroethane 1 2 --- --- --- ---

1,2,4-Trichlorobenzene 2 0.2 --- --- --- ---

1,2-Dichlorobenzene 2 8 --- --- 20 80

1,3-Dichlorobenzene 2 6 --- --- --- ---

1,4-Dichlorobenzene 0.2 0.06 --- --- --- ---

4-Chloroaniline 50 30 --- --- --- ---

Acenaphthene --- --- 6 10 60 100

Aldrin --- --- 0.02 0.03 0.2 0.3

Aromatic Hydrocarbons

C9 to C10

7 4 --- --- --- ---

Benzene 2 1 --- --- --- ---

cis-1,2-Dichloroethene 0.1 0.02 --- --- --- ---

Hexachlorobutadiene 0.001 0.05 --- --- --- ---

Methylene Chloride 10 2 --- --- --- ---

Naphthalene 1 0.7 --- --- --- ---

Pyrene --- --- --- --- 0.8 0.6

trans-1,2-

Dichloroethene

0.09 0.08 --- --- --- ---

Trichloroethene 0.03 0.005 --- --- --- ---

Xylenes (total) 9 3 --- --- --- ---

Note: “---“ indicates that no change was made to the respective standard.

Although the tables presented in this report compare the groundwater analytical data to the former standards in effect at the time of sampling, GE has also reviewed the modified MCP Method 1 groundwater standards in comparison to this data and other historical results from

the OPCA monitoring wells. As shown above, the recent changes do not include any reduction in any of the GW-3 standards (although certain GW-3 standards were increased) or any changes in groundwater standards for PCBs; however several of the GW-2

Page 23: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 16

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

standards for certain substances have been reduced. As further described in Section 5.2, the 2014 changes in standards do not affect the evaluation of groundwater data presented

herein or suggest a need to modify the scope of the post-closure monitoring program. GE will compare all future groundwater quality results to the new MCP groundwater standards.

The applicable Performance Standards for groundwater quality at and around the OPCAs, as set forth in Section 2.7 and Attachment H of the SOW, are as follows:

1. For groundwater located within 15 feet or less from the ground surface and within 30 feet of an existing occupied building, groundwater quality must achieve:

a) The Method 1 GW-2 groundwater standards set forth in the MCP, as amended (or, for constituents for which no such standards exist, Method 2 GW-2 standards derived using procedures set forth in the MCP or approved by EPA. unless GE

provides and EPA approves a rationale for not developing such Method 2 standards);

b) Alternative risk-based GW-2 standards developed by GE and approved by EPA as protective against unacceptable risks due to volatilization and transport of volatile chemicals from groundwater to the indoor air of nearby occupied buildings; or

c) A condition, based on a demonstration approved by EPA, in which constituents in the groundwater do not pose an unacceptable risk to occupants of nearby occupied

buildings via volatilization and transport to the indoor air of such buildings.

2. For all groundwater at and around the OPCAs, groundwater quality must achieve:

a) The Method 1 GW-3 groundwater standards set forth in the MCP, as amended (or, for constituents for which no such standards exist, Method 2 GW-3 standards

derived using procedures set forth in the MCP or approved by EPA unless GE provides and EPA approves a rationale for not developing such Method 2 standards); or

b) Alternative risk-based GW-3 standards proposed by GE and approved by EPA as protective against unacceptable risks in surface water, sediments, and/or biota due

to potential migration of constituents in groundwater at the perimeter of the property boundary.

Page 24: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 17

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

4.3 Groundwater Quality – Spring 2014

For the purpose of assessing current groundwater quality conditions, the analytical results from the spring 2014 groundwater sampling event were compared to the pertinent groundwater Performance Standards (applicable at the time of sampling/analysis). These

Performance Standards are described in Section 4.2 above and are currently based on the MCP Method 1 GW-2 and/or GW-3 standards and, for cobalt and copper, on the EPA-approved Method 2 GW-3 standards. The following subsections discuss the spring 2014

groundwater analytical results in relation to these Performance Standards, as well as in relation to the MCP UCLs for groundwater. In support of those discussions, Tables 6 and Table 7 provide a comparison of the concentrations of the detected constituents with the

GW-2 standards for compliance wells where those standards apply (Table 6) and wells where they are used for benchmark purposes only (Table 7). Table 8 presents a comparison of the concentrations of detected constituents with the applicable GW-3

standards. Table 9 compares the spring 2014 analytical results for all wells sampled with the MCP UCLs for groundwater.

With regard to constituents that may be analyzed in either filtered or unfiltered samples (i.e., PCBs and inorganics), all monitoring wells were sampled and analyzed in spring 2014 in accordance with the approved protocols, which provide for the analyses of PCBs and

inorganics only in filtered samples (except for sulfide, which is analyzed in unfiltered samples only).

4.3.1 Spring 2014 Groundwater Results Relative to GW-2 Performance Standards

As discussed in the OPCA Post-Closure Monitoring Plan, although none of the wells in the

OPCA monitoring program directly measures groundwater that meets the GW-2 criteria, three monitoring wells adjacent to the OPCAs (located slightly over 30 feet upgradient of buildings) have been designated as GW-2 monitoring wells and are used as compliance

points for the GW-2 standards; these are wells H78B-15, OPCA-MW-4, and OPCA-MW-5R. In addition, that plan provides that the results from the nine other OPCA monitoring wells are to be compared to the GW-2 standards on a benchmark basis only. During the spring

2014 sampling event, groundwater samples were collected from all 12 of these wells, and the results were compared with the GW-2 standards either to assess compliance with those standards or as benchmarks.

Table 6 presents the spring 2014 groundwater analytical results from the GW-2 compliance wells for all detected constituents subject to GW-2 standards and a comparison of those

results with the applicable MCP Method 1 GW-2 standards in effect at the time of sampling. As shown in Table 6, none of the spring 2014 sample concentrations from any of the GW-2 compliance monitoring wells were above its corresponding GW-2 Performance Standard,

Page 25: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 18

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

and none of the samples exhibited total VOC concentrations above 5 ppm (the level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school

or occupied residential structure and as a trigger level for the proposal of interim response actions). These results are consistent with the available results from prior sampling events.

Table 7 presents the spring 2014 groundwater analytical results from the remaining OPCA monitoring wells for all detected constituents subject to GW-2 standards and provides a comparison of those results with the levels of the MCP Method 1 GW-2 standards in effect

at the time of sampling for benchmark purposes. As shown in Table 7, at well OPCA-MW-1RR, the spring 2014 sample concentration of PCE (2.4 ppm) was greater than the level of the Method 1 GW-2 standard for PCE (0.05 ppm). Prior detections above this “benchmark”

level have consistently been observed at this location and the spring 2014 concentration was below the historical average PCE concentration at this well. All other results from these non-GW-2 monitoring wells were below the levels of the GW-2 standards in effect at

the time of sampling. However, as noted in Table 7, the TCE concentration at well OPCA-MW-1RR in spring 2014 was greater than the GW-2 standard for this constituent that became effective in June 2014. GE’s response to this observation is discussed in Section

5.2.1,

4.3.2 Spring 2014 Groundwater Results Relative to GW-3 Standards

Groundwater samples were collected from all 12 wells designated as GW-3 monitoring points during the spring 2014 groundwater sampling event. Table 8 presents the spring

2014 groundwater analytical results for all constituents detected in these monitoring wells and a comparison of those results with the applicable MCP Method 1 or 2 GW-3 standards. The comparisons set forth in Table 8 show that only one of the constituents detected were

found at levels above its applicable MCP Method 1 (or Method 2) GW-3 standard in spring 2014. Specifically, cadmium at well OPCA-MW-1RR was detected at a concentration of 0.0273 ppm, which is higher than the GW-3 standard of 0.004 ppm. This was the highest

concentration of cadmium detected at this well and this result is considered anomalous, as discussed further in section 5.2.2.

4.3.3 Spring 2014 Comparison to Upper Concentration Limits

In addition to comparing the spring 2014 groundwater analytical results with applicable

MCP Method 1 or 2 GW-2 and GW-3 standards, the analytical results from all 12 wells that were sampled were compared with the UCLs for groundwater in effect at the time of sampling, as specified in the MCP (310 CMR 40.0996(7)). Table 9 presents these

comparisons. As shown in Table 9, none of the groundwater samples collected in spring 2014 contained constituent concentrations greater than its listed UCL.

Page 26: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 19

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

4.4 Overall Assessment of Groundwater Analytical Results

For the purpose of assessing current groundwater conditions, the analytical results from the spring 2014 groundwater sampling event were compared to data obtained during prior sampling events, and in particular, the most recent round of sampling, conducted in fall

2013. In addition, the variability of the data was evaluated. The results of these comparisons are described below.

4.4.1 Comparison of Spring 2014 Analytical Results to Prior Groundwater Data

Groundwater samples were collected from 12 OPCA monitoring wells during the spring

2014 post-closure sampling event. The spring 2014 analytical results for each analytical constituent group (i.e., VOCs, SVOCs, PCBs, PCDDs/PCDFs, and inorganics) were discussed in Section 3 above and comparisons with prior data are presented below.

Graphs illustrating historical total VOC concentrations and filtered PCB concentrations for the OPCA wells sampled in spring 2014 are presented in Appendix E. In addition,

Appendix E contains graphs of historical concentrations of certain individual constituents at selected wells where concentrations approaching the pertinent GW-2 or GW-3 Performance Standard (i.e., greater than 50% of the respective standard) have previously been observed

during one or more of the prior GMA 4 or OPCA monitoring program sampling events.

The spring 2014 groundwater sampling results from the OPCA monitoring wells were

generally consistent with those from the baseline round and/or recent sampling. All constituents were below the applicable UCLs, Method 1 GW-2 standards, and/or Method 1 or 2 GW-3 standards, with the exception of the PCE and cadmium concentrations at well

OPCA-MW-1RR, which were above the level of the GW-2 and GW-3 standards, respectively (although PCE data from this well are compared to the GW-2 standards for benchmark purposes only). Cadmium in well OPCA-MW-1RR is further discussed below

and in Section 5.2.2.

VOCs

Six VOCs were detected in one or more OPCA monitoring wells sampled in spring 2014. These VOC results have been compared with the prior sampling data, including the 1999

baseline data. As illustrated in the graphs provided in Appendix E, the spring 2014 total VOC data are generally consistent with the prior sampling results, as VOCs generally have not been detected or have remained at low levels in the majority of the wells that have been

sampled. The VOCs that were detected are at levels below the maximum concentrations observed during prior sampling events.

Page 27: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 20

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

Based on a review of the PCE concentration vs. time graph presented in Appendix E, the PCE concentration at well OPCA-MW-1RR in spring 2014 was estimated at 2.4 ppm which

is less than the average concentration of PCE recorded in this well and significantly lower than the GW-3 standard of 30 ppm. Although this well is not a GW-2 compliance well, the spring 2014 PCE result has also been compared to the GW-2 standard as a benchmark, as

discussed above. The PCE concentration in spring 2014 is above the GW-2 benchmark level (0.05 ppm) at this well. PCE concentrations have generally declined since the maximum concentration of 5.6 ppm was recorded in spring 2009. As discussed further in

Section 5.2.1, PCE concentrations at this well will continue to be monitored to assess whether that overall declining trend continues.

TCE was also detected in well OPCA-MW-1RR in spring 2014 at an estimated concentration of 0.027 ppm, which is below the GW-2 benchmark level in effect at the time of sampling (0.03 ppm) and below the GW-3 standard (5 ppm). As seen on the TCE

concentration vs. time graph presented in Appendix E, TCE was not detected in this well during the first three sampling rounds following its installation in fall 2008 (i.e., from fall 2008 through fall 2009), but has been observed during seven of eight sampling events conducted

since spring 2010. TCE concentrations have remained at or below the GW-2 benchmark since the maximum detected concentration of an estimated 0.042 ppm in spring 2012. There does not appear to be an overall trend in TCE concentrations at well OPCA-MW-

1RR. TCE concentrations at this well will continue to be monitored to assess whether that is the case.

Concentrations of vinyl chloride above the GW-2 standard of 0.002 ppm were previously recorded in GW-2 compliance wells OPCA-MW-4 (0.0028 ppm in spring 2003) and OPCA-MW-5R (0.0071 ppm in spring 2006). These two sampling events are the only monitoring

rounds in which vinyl chloride concentrations exceeded the GW-2 standard. Vinyl chloride has not been detected at well OPCA-MW-4 for the last 12 consecutive sampling rounds, including spring 2014. At well OPCA-MW-5R, vinyl chloride has been detected during

seven of 16 sampling rounds since spring 2006, with a maximum concentration of 0.0012 ppm in spring 2008. No vinyl chloride has been detected since spring 2012, providing a further indication that the spring 2006 GW-2 exceedance recorded for this constituent was

anomalous.

SVOCs

No SVOCs were detected during the spring 2014 sampling round. Historically SVOCs have typically either been not detected or present at trace concentrations below the PQL. All

recorded SVOC concentrations in the OPCA wells have been several orders of magnitude below the GW-2 and GW-3 performance standards.

Page 28: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 21

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

PCBs

Filtered groundwater samples from all 12 OPCA groundwater monitoring program wells were analyzed for PCBs as part of the spring 2014 sampling event. As discussed in Section 3.2.3 above and illustrated on the concentration vs. time graphs presented in

Appendix E, PCBs were only detected in well OPCA-MW-4 in spring 2014. The highest recent PCB concentration in this well was recorded in spring 2011 at 0.00157 ppm and the spring 2014 result (0.00031 ppm) is much lower than the spring 2011 result. PCBs have

been detected in well OPCA-MW-4 in three of the six sampling rounds conducted since spring 2011.

PCDDs/PCDFs

Trace levels of PCDDs were detected in samples from wells 78-1, 78-6R GMA4-6, OPCA-

MW-5R, OPCA-MW-7, and OPCA-MW-8R during the spring 2014 sampling event. Trace levels of PCDFs were detected in samples from wells 78-1, GMA4-6, OPCA-MW-1RR, , OPCA-MW-4, OPCA-MW-5R, OPCA-MW-6, and OPCA-MW-7 during the spring 2014

sampling event. All calculated total TEQs from spring 2014 were below the GW-3 standard and within historical ranges

Inorganics

For inorganic constituents, minor variations in detected concentrations have been observed

in several monitoring wells. These fluctuations have been observed during the course of the OPCA groundwater monitoring program and are considered typical for inorganic constituents in groundwater. The spring 2014 data on inorganic constituents showed one

exceedance (cadmium in well OPCA-MW-1RR) of the applicable MCP Method 1 (or, for copper and cobalt, Method 2) GW-3 standards in the OPCA wells.

Concentrations of three metals (cadmium, cobalt, and lead) approaching their GW-3 standard (i.e., greater than 50%) were previously recorded in certain GW-3 compliance wells. Concentration vs. time graphs for those locations are presented in Appendix E and

discussed below.

During spring 2014, cadmium was detected in well OPCA-MW-1RR at a concentration

(0.0273 ppm) which is greater than the GW-3 standard. This is the highest concentration of cadmium detected in this well and is approximately an order of magnitude greater than the cadmium concentrations typically observed at this location, indicating that the spring 2014

result may be anomalous. The average cadmium concentration in well OPCA-MW-1RR is 0.00379 ppm (slightly below the GW-3 standard), when the apparently anomalous spring 2014 result is included in the calculation. However, the average concentration when the

Page 29: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 22

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

spring 2014 result is excluded (0.0016 ppm) is well below the GW-3 standard. Downgradient location OPCA-MW-2R is also monitored for cadmium and no cadmium was

detected in spring 2014 or during 22 of the previous 25 sampling rounds at this well. Cadmium has never been detected above the GW-3 standard at well OPCA-MW-2R and has not been detected above half of the GW-3 standard since fall 2008. The spring 2014

cadmium results were also slightly elevated in well OPCA-MW-7 (0.00208 ppm) compared to prior data at this location. This result also appears anomalous and the spring 2014 data may be similar to fall 2008 when apparently elevated cadmium concentrations were noted

in in five monitoring wells: OPCA-MW-1RR (0.00256 ppm), OPCA-MW-2R (0.00263 ppm), OPCA-MW-4 (0.00276 ppm), OPCA-MW-6 (estimated at 0.00328 ppm, but not detected in a duplicate sample), and OPCA-MW-8R (0.00287 ppm). Subsequent sampling rounds after

fall 2008 did not detect cadmium or detected concentrations were generally lower. Isolated detections of cadmium were also recorded in four of these wells in other prior events (in well OPCA-MW-2R in fall 2005 and fall 2013, in well OPCA-MW-6 in fall 2011, in well OPCA-

MW-4 in spring 2012, and in well OPCA-MW-1RR from spring 2012 through spring 2014), but the only such detections at a concentration greater than half of the GW-3 standard occurred in well OPCA-MW-1RR in fall 2012 (0.00278 ppm), spring 2013 (an estimated

0.00230 ppm), fall 2013 (0.0070 ppm), and spring 2014. As discussed further in Section 5.2.2, cadmium concentrations at wells OPCA-MW-1RR and OPCA-MW-2R will continue to be monitored to assess whether the apparent increase in concentration at well OPCA-MW-

1RR in spring 2014 continues.

Cobalt was not detected in well OPCA-MW-4 in spring 2014. Previously, cobalt was

detected at an estimated concentration of 0.05 ppm in well OPCA-MW-4 during the fall 2002 sampling event, which is greater than 50% of the Method 2 GW-3 standard of 0.075 ppm that has been developed for cobalt at this site. Until fall 2012, cobalt was not detected

at this well during any other sampling events. An estimated cobalt concentration of 0.0046 ppm was recorded at well OPCA-MW-4 in fall 2012, which is far below both the historical maximum and the GW-3 standard. Cobalt was not detected in well OPCA-MW-4 in spring

2013 and was detected in fall 2013 at an estimated concentration of 0.000025 ppm, several orders of magnitude below the Method 2 GW-3 standard that has been developed for cobalt at this site. The sporadic low level detections of cobalt at well OPCA-MW-4 do not appear to

warrant any additional response other than continued monitoring as part of the post-closure program.

Lead was detected in wells H78B-15 (estimated at 0.00826 ppm) and OPCA-MW-1RR (estimated at 0.00982 ppm) in spring 2014. As shown above, lead has been detected in well OPCA-MW-1RR at similar estimated concentrations in the past. However spring 2014

was the first detection of lead in well H78B-15 at an estimated concentration approaching the GW-3 standard of 0.01 ppm. Lead has only been detected at well H78B-15 during two out of 28 sampling rounds and the average concentration of lead in well H78B-15 is only

Page 30: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 23

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

0.00351 ppm, which is less than half of the GW-3 standard of 0.01 ppm. Detections of lead at estimated concentrations approaching the GW-3 standard of 0.01 ppm have been

recorded during isolated sampling events at several monitoring wells: 78-6 (estimated at 0.00684 ppm in fall 2008), GMA4-6 (estimated at 0.00692 ppm, but not detected in a duplicate sample analyzed in fall 2009 and estimated at 0.00899 ppm, but not detected in a

duplicate sample analyzed in fall 2011), OPCA-MW-1RR (estimated at 0.00854 ppm in fall 2011), OPCA-MW-3 (estimated at 0.00564 ppm in fall 2008), OPCA-MW-5R (estimated at 0.00657 ppm in fall 2008), OPCA-MW-6 (estimated at 0.00641 ppm and 0.00718 ppm in

duplicate samples analyzed in fall 2008), and OPCA-MW-7 (estimated at 0.00583 ppm in spring 2009). However, concentrations were found to decrease or drop to non-detectable levels following each of these events. Like many inorganics, it appears that low

concentrations of lead are occasionally detected in groundwater samples and no further response beyond continued monitoring in the post-closure program is necessary.

4.4.2 Evaluation of Variability in Data

To evaluate the potential presence of seasonal trends in the groundwater quality data, GE

has reviewed the analytical data from the wells included in the OPCA post-closure monitoring program. Inspection of the historical concentration graphs contained in Appendix E indicates that the data collected in the spring and fall seasons are generally

within the same order of magnitude and no patterns are visually evident in the VOC concentrations of the overall datasets or the spring or fall subsets only. At well OPCA-MW-1RR, concentrations of total VOCs and PCE resumed a declining concentration trend

beginning in spring 2009 which was disrupted by an increase in concentrations in spring 2012 and spring 2013. The results for PCBs and other organic and inorganic constituents were non-detect during most sampling rounds or at trace levels with detections split

between spring and fall seasons. Overall, it does not appear that seasonal variability is affecting the data in the monitoring wells surrounding the OPCAs. Although periodic anomalies associated with certain inorganic results have been observed, these anomalies

are not unusual with inorganics in groundwater and do not appear to correlate to any seasonal variations.

4.4.3 Evaluation of Analytical Data Summary Statistics

As discussed above, graphical representations such as a simple plot of concentration data

versus time may reveal long-term cyclical patterns as well as pulses, both of which may explain temporal trends. In addition, GE has prepared a general statistical summary of the historical analytical results, using summary statistics, for all wells/constituents included in

the OPCA post-closure monitoring program. The summary statistics for the analytical data

Page 31: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 24

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

from these wells are presented in Tables E-1 through E-12 in Appendix E and are discussed below.2

As shown in Tables E-1 through E-12 in Appendix E, most of the analyzed constituents are rarely detected or were detected at maximum or average concentrations an order of

magnitude or more below the applicable GW-2 standards/benchmark levels or GW-3 standards. As previously discussed, the only constituents observed in any of the OPCA wells in spring 2014 at concentrations greater than the GW-2 standards/benchmark levels

or GW-3 standards were PCE and cadmium in well OPCA-MW-1RR. These results are discussed further in Section 5.2.

Eight constituents, many at trace concentrations, were detected in spring 2014 at their highest levels at one or more monitoring wells3. The majority of these detections were due to constituents being detected for the first time, or only having been observed three or fewer

times before, increasing the likelihood that any detection would represent a maximum concentration. Many were qualified as “J” (indicating that the listed concentration was estimated) or for inorganics “B” (indicating that the estimated result is between the method

detection limit and the reporting limit), indicating that the listed concentration was estimated. The wells and the constituents reported with maximum concentrations are:

Barium (GW-3 standard of 50 ppm) was detected for the 17th time in 26 sampling events at well OPCA-MW-8R (0.0679 B ppm). The average barium concentration at this well is 0.0533 ppm.

Beryllium (GW-3 standard of 0.2 ppm) was detected for the third time in 25 sampling events at well OPCA-MW-7 (0.00872 J ppm). The average beryllium concentration at

this well is 0.00317 ppm.

2 Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

3 A ninth constituent, TCE (GW-2 standard of 0.03 ppm, GW-3 standard of 5 ppm), was detected at an estimated concentration equal to the previous maximum detected concentration of 0.0021 ppm in well OPCA-MW-4. TCE has been detected in 22 of 28 sampling events at this well.

Page 32: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 25

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

Cadmium (GW-3 standard of 0.004 ppm) was detected for the sixth time in 12 sampling events at well OPCA-MW-1RR (0.0273 J ppm, compared to an average concentration

of 0.00379 ppm), the sixth time in 27 sampling events at well OPCA-MW-5 (0.00176 ppm, compared to an average concentration of 0.00197 ppm), and the sixth time in 25 sampling events at well OPCA-MW-7 (0.00208 ppm, which is equal to the average

concentration at this location). [It should be noted that due to elevated reporting limits reported during certain sampling events where no cadmium was detected, the resulting calculated average concentrations at wells OPCA-MW-5 and OPCA-MW-7 were

greater than or equal to the maximum detected concentrations because a value equal to one-half of the reporting limit is utilized for all non-detected results in the averaging calculations. This apparent incongruity in the summary statistics is common for

constituents that are infrequently detected, particularly when the limited detections are reported as “B-qualified” estimated concentrations below the reporting limit.]

Chromium (GW-3 standard of 0.3 ppm) was detected for the third time in 12 sampling events at well OPCA-MW-1RR (0.00209 B ppm). The average chromium concentration at this well, which is primarily influenced by a reporting limit between 0.01 ppm and 0.02

ppm, is 0.00387 ppm)

Lead (GW-3 standard of 0.01 ppm) was detected for the second time in 28 sampling

events at well H78B-15 (0.00826 J ppm, compared to an average concentration of 0.00351 ppm) and the third time in 12 sampling events at well OPCA-MW-1RR (0.00982 J ppm, compared to an average concentration of 0.00503 ppm).

Thallium (GW-3 standard of 3 ppm) was detected for the third time in 16 sampling events at well GMA4-6 (0.0105 J ppm in the parent sample and not detected in the

duplicate sample, compared to an average concentration of 0.00501 ppm), the second time in 12 sampling events at well OPCA-MW-1RR (0.0102 J ppm, compared to an average concentration of 0.00521 ppm), the first time in 26 sampling events at well

OPCA-MW-2 (0.0107 J ppm), and the sixth time in 26 sampling events at well (OPCA-MW-8R (0.00992 J ppm, compared to an average concentration of 0.00545 ppm).

Zinc (GW-3 standard of 0.9 ppm) was detected for the 19th time in 27 sampling rounds at well OPCA-MW-5 (0.263 ppm). The average zinc concentration at this well is 0.0285 ppm.

As shown above, the concentrations reported for these constituents in spring 2014 were typically multiple orders of magnitude below any applicable GW-2 or GW-3 standards and

these low level detections do not warrant additional actions. Exceptions this are the GW-3 exceedance of cadmium at well OPCA-MW-1RR, the detection of cadmium at a concentration greater than 50% of the GW-3 standard at well OPCA-MW-7, and the

Page 33: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 26

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

detection of lead at a concentration greater than 50% of the GW-3 standard at wells H78B-15 and OPCA-MW-1RR. The average concentration of all of these constituents at these

wells is greater than 50% of the applicable standards except for lead at well H78B-15. The detections of cadmium at wells OPCA-MW-1RR and well OPCA-MW-7, as well as lead at wells H78B-15 and OPCA-MW-1RR are discussed further in Section 5.2.

In addition, the spring 2014 results for barium at well 78-6R (0.113 ppm), selenium at well OPCA-MW-2 (0.00876 J ppm), and thallium at well OPCA-MW-4 (0.00805 J ppm) were

below their highest historical levels, but were greater than their respective arithmetic average concentrations. These concentrations are well below the applicable GW-3 standards for barium (50 ppm), selenium (0.1 ppm), and thallium (3 ppm) and no further

assessments are necessary.

4.5 Pittsfield Generating Company Supply Well Data

As noted above, one groundwater sample obtained from the PGC deep bedrock industrial cooling-supply well ASW-5 was analyzed on behalf of PGC for VOCs and PCBs in

accordance with its approved monitoring program. No VOCs or PCBs were detected at this well during the June 10, 2014 sampling event. A table and graphs summarizing the historical analytical results for this well are provided in Appendix D. As shown on those

graphs, total VOC concentrations (consisting primarily of TCE) show a generally downward trend since fall 2003. None of the VOCs detected in this supply well has been observed at a concentration above the applicable MCP Method 1 GW-3 standard. As seen in Table D-1

in Appendix D, which summarizes the sampling results at well ASW-5 since June 1996, PCBs have never been detected in this well.

4.6 NAPL Monitoring Results

NAPL monitoring was performed during all groundwater elevation monitoring activities

conducted in spring 2014. NAPL was not observed in any of the monitoring wells. These include wells OPCA-MW-2R and OPCA-MW-3, which are located downgradient of former well H78B-8R, where the only known historical occurrence of NAPL in this area was

recorded. Small amounts of LNAPL were occasionally detected at well H78B-8R from May 1999 to May 2001 and from June 2002 to June 2003, when that well was decommissioned as part of the OPCA construction. However, LNAPL has never been observed in any

adjacent location.

Page 34: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 27

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

5. Monitoring Program Modifications and Schedule of Future Activities

5.1 General

GE has reviewed the results of its groundwater-related activities at the OPCA monitoring wells, including the groundwater analytical data from the spring 2014 post-closure sampling event, for results that could indicate the need to modify the post-closure monitoring

program. As discussed in Section 5.2 below, no sampling or monitoring program modifications are proposed based on the results of that evaluation. However, as discussed further in Section 5.2, cadmium concentrations at wells OPCA-MW-1RR and other locations

will be monitored to determine if additional activities to address the anomalously high cadmium concentrations in spring 2014 are required.

This section also summarizes the schedule for upcoming post-closure monitoring events and associated reporting activities, including the upcoming fall 2014 post-closure monitoring/sampling event. Since no modifications are proposed, the fall 2014 post-closure

sampling program activities will be identical to those conducted in spring 2014, as described in Tables 1 and 2 and shown on Figure 2.

5.2 Evaluation of the Need for Follow-up Investigations, Interim Response Actions, or Other Monitoring Program Modifications

As in the past, the vast majority of the fall groundwater analytical results were non-detect or at levels significantly below the applicable GW-2 standards/benchmark levels or GW-3 standards. The assessment of results presented in Section 4.4.3 concluded that, apart from

lead in well H78B-15; PCE, TCE, cadmium and lead in well OPCA-MW-1RR; and cadmium in wells OPCA-MW-5 and OPCA-MW-7, the constituents detected in spring 2014 were generally trace concentrations of constituents that are rarely detected and/or were well

below the applicable GW-2 standards/benchmark levels or GW-3 standards. As such, GE does not propose any modifications to the post-closure monitoring program, but will continue to evaluate the data from future sampling events to assess whether there are any

overall trends in the data for these constituents. Further evaluation of the above-referenced results from wells H78B-15, OPCA-MW-1RR, OPCA-MW-5, and OPCA-MW-7, as well as a discussion of MCP standards that were revised after sampling was conducted in spring

2014 is included in the discussions below. It should be noted that no GW-3 standards became more stringent with the recent MCP revisions. Additionally, no constituents with UCLs that became more stringent have been detected in the wells monitored under the

OPCA post-closure groundwater monitoring program. As such, the discussion of the modified MCP standards in this report is limited to GW-2 standards.

Page 35: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 28

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

5.2.1 Evaluation of Data in Relation to GW-2 Standards

Section 4.6.1 of the Post-Closure Groundwater Monitoring Plan requires that, if sampling results from a GW-2 compliance well indicate an exceedance of a GW-2 standard, or if constituent concentrations in such a well are greater than 50% of an applicable GW-2

standard and there is a statistically significant increase in concentrations (based on a statistical evaluation of the data), GE must propose appropriate response actions to address that exceedance. Response actions may include: resampling of the groundwater;

increasing the sampling frequency to quarterly; additional well installation (including sampling and analysis); soil gas sampling; desk-top modeling of potential volatilization of chemicals from the groundwater to the indoor air of nearby occupied buildings; sampling of

the indoor air of such buildings; an evaluation of the potential risks related to volatilization to such indoor air; the development and proposal of a risk-based alternative GW-2 standard (if not already established); and/or active response actions (e.g., containment, recovery, or

treatment of impacted groundwater.

As discussed in Section 4.3.1, none of the spring 2014 sample concentrations from any of

the GW-2 compliance wells was above its corresponding GW-2 standard at the time of sampling.

Section 4.6.1 of the Post-Closure Groundwater Monitoring Plan also requires that, if the results from any other OPCA sampling well exceed the levels of the GW-2 standards as a benchmark, GE must propose to EPA for approval appropriate actions to further evaluate

such exceedance. In addition, if constituent concentrations are greater than 50% of those benchmark levels, GE is required to conduct a statistical evaluation of the data to determine if there is a statistically significant increase in concentrations and, if so, to propose

appropriate actions to further evaluate the increasing concentrations that are approaching the GW-2 standard. In either case, such actions may include actions similar to those noted above.

As shown in Table 7, in spring 2014 TCE was detected in well OPCA-MW-1RR at an estimated concentration of 0.027 ppm, which is slightly below the 0.03 ppm GW-2

benchmark level for TCE. PCE was also detected at a concentration of 2.4 ppm in this well, which is above the GW-2 benchmark of 0.05 ppm. PCE and TCE concentrations above these levels have been recorded for several prior sampling events at this well and GE has

already performed response actions based on those results as part of the GMA 4 baseline monitoring program. Specifically, GE installed monitoring well GMA4-8 at a location downgradient of well OPCA-MW-1RR and sampled that well during the fall 2009 and spring

2010 sampling events. No PCE or TCE was detected in this well during either sampling round. Based on those results, in the August 30, 2010 Groundwater Management Area 4 Groundwater Quality Monitoring Interim Report for Spring 2010, GE proposed to

Page 36: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 29

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

discontinue sampling at well GMA4-8 and EPA approved that proposal. However, GE subsequently proposed to conduct supplemental sampling of this well, along with well

GMA4-9 (also located downgradient of well OPCA-MW-1RR), in its March 2012 Baseline Assessment Final Report and Long-Term Monitoring Program Proposal for Groundwater Management Area 4 (GMA 4 Long-term Monitoring Proposal), which was conditionally

approved by EPA on May 11, 2012. Each of those wells has been sampled for VOCs, including PCE and TCE, as part of the GMA 4 long-term monitoring program.

No PCE or TCE has ever been detected in downgradient well GMA4-8. Although each of these constituents are typically observed in well GMA4-9, the concentrations are significantly lower than in well OPCA-MW-1RR (an order of magnitude or more) and below

the GW-2 standard levels. Most recently in spring 2014, PCE and TCE were not detected in well GMA4-8 but were detected in well GMA4-9 at concentrations significantly less than in the spring 2014 sample from well OPCA-MW-1RR. These results are presented in the

Groundwater Management Area 4 Long-Term Monitoring Program Monitoring Event Evaluation Report for Spring 2014, which is being submitted concurrently with this report and are also summarized in the following table:

Well ID Sampling Date

PCE Concentration

(ppm)

TCE Concentration

(ppm)

OPCA-MW-1RR 4/10/2014 2.4 0.027 J

GMA4-8 5/9/2014 ND(0.0010) J ND(0.0010) J

GMA4-9 5/9/2014 0.098 J [0.092 J] 0.0034 J [0.0032 J]

Notes:

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

J - Indicates that the associated numerical value is an estimated concentration.

Moreover, as discussed in the Spring 2013 OPCA Groundwater Trend Evaluation Report, PCE concentrations at well OPCA-MW-1RR exhibited a statistically significant declining trend across the overall dataset as well as during the past four years and the spring 2014

results are consistent with the two prior sampling events (spring and fall 2013).

Based on these results and the activities already performed, no additional response actions

are proposed at this time to address these constituents at OPCA-MW-1RR. GE will continue to sample this well as part of the OPCA post-closure program and will re-evaluate the need for further actions in future monitoring event and trend evaluation reports. Also, as

discussed in the GMA 4 Fall 2012 Monitoring Event Evaluation Report conditionally

Page 37: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 30

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

approved by EPA in a letter dated April 17, 2013, GE has incorporated well GMA4-8 into the long-term monitoring program for GMA 4 as a sentinel location downgradient of well

OPCA-MW-1RR and will continue to sample that well (along with well GMA4-9) for VOCs as part of that program.

GE has reviewed the spring 2014 data for TCE at well OPCA-MW-4 and vinyl chloride concentration at well OPCA-MW-5R, where apparent increasing trends were identified during certain statistical trend analyses presented in the Spring 2013 OPCA Groundwater

Trend Evaluation Report. TCE was detected at well OPCA-MW-4 in spring 2014 at an estimated concentration of only 0.0012 ppm and the fall 2013 estimated concentration of TCE (0.00094 ppm) at well OPCA-MW-4 was the the lowest detected concentration of TCE

at this well. Overall, TCE has been detected during 22 out of 28 analyses at this well and the average TCE concentration in this well is well below the prior GW-2 standard of 0.03 ppm. Based on the fall 2013 and spring 2014 data, which is not consistent with an

increasing trend in TCE at well OPCA-MW-4, as well as the generally low concentration of TCE (well below the GW-2 standard), GE does not propose any modifications to the sampling program to address TCE in well OPCA-MW-4. Vinyl chloride has only been

detected during eight out of 28 analyses at well OPCA-MW-5R and has not been observed since spring 2012. Therefore, there is no reason to modify the sampling plan in regard to vinyl chloride in well OPCA-MW-5R.

In light of the recent revisions to the MCP that became effective on June 20, 2014, GE has performed an evaluation of historical groundwater concentrations at the OPCAs to

determine if the modifications have created a need to modify the post-closure monitoring program. Specifically, GE initially researched the OPCA groundwater database for any analytical results for constituents subject to the modified MCP Method 1 Standards in cases

where the standards were revised downward. Any such locations/results were selected for further evaluation, consisting of a basic statistical evaluation of the constituents at each location, calculation of average concentrations, and a comparison of constituent

concentrations to the old and new MCP Method 1 Standard or UCLs for groundwater. The results of this evaluation are summarized in Table 10.

As indicated in Table 10, of the constituents that have a lowered GW-2 Groundwater Standard, only TCE at well OPCA-MW-1RR has exceeded the new standard (which is treated as a benchmark at this well). However, historical TCE concentrations at well OPCA-

MW-1RR also exceeded the former standards and the arithmetic average concentration is more than 50% of the GW-2 benchmark level using both the former and current GW-2 standards. The presence of TCE at this well is likely related to the detections of PCE that

have been historically observed and is being addressed by downgradient sampling conducted at well OPCA-MW-2R (and wells GMA4-8 and GMA4-9 as part of the GMA 4

Page 38: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 31

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

long-term monitoring program). Therefore, no modifications to the post-closure monitoring program are required to address TCE at well OPCA-MW-1RR.

None of the maximum detected concentrations of constituents subject to revised GW-2 standards at any of the other OPCA wells was greater than 50% of the revised GW-2

standard/benchmark level. As such, no response actions beyond continued sampling in the post-closure program is proposed in response to the changes in the Method 1 standards. In future post-closure monitoring reports, GE will compare all future groundwater quality

results to the new MCP groundwater standards.

5.2.2 Evaluation of Data in Relation to GW-3 Standards

Section 4.6.2 of the Post-Closure Groundwater Monitoring Plan requires that, for each monitoring event, if the sampling data show an exceedance of a GW-3 standard at any of

the OPCA wells, or if constituent concentrations are greater than 50% of those standards and there is a statistically significant increase in concentrations, GE must propose appropriate response actions to address that condition. In this case, response actions may

include, but are not limited to, measures to remediate the groundwater, additional sampling to confirm or further evaluate the data, and/or further assessment of groundwater quality with regard to potential receptors.

As discussed in Section 4.3.2 and shown in Table 8, of all the spring 2014 sample concentrations from the OPCA monitoring program wells, only cadmium in well OPCA-MW-

1RR was above its corresponding GW-3 standard. As also noted in Section 4.4.3, the spring 2014 concentrations of cadmium at well OPCA-MW-7 in addition to lead at wells H78B-15 and OPCA-MW-1RR were greater than half of the applicable GW-3 standards.

Well H78B-15 has contained detectable concentrations of lead during only two of the 28 sampling events at this well. The first detection of lead in well H78B-15 was in fall 1996 at

an estimated concentration of 0.00260 ppm. Lead was not detected again in this well until spring 2014, when the detected concentration (0.00826 J ppm) was greater than 50% of the GW-3 standard for lead (0.010 ppm). The average concentration of lead in well H78B-15 is

only 0.00351 ppm, which is less than half of the GW-3 standard. While the spring 2014 result was the highest lead concentration recorded at this well, it constituted only the second time that lead was ever detected in well H78B-15. Due to the limited number of

detections, further statistical analyses would not be meaningful at this time. No response actions beyond continued sampling in the post-closure program are proposed to address these lead results.

Page 39: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 32

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

Well OPCA-MW-1RR has been sampled for cadmium during 12 semi-annual events with the spring 2014 result being the first occasion where the GW-3 standard was exceeded.

This well contained concentrations of cadmium greater than half of the 0.004 ppm GW-3 standard on five occasions, in fall 2008 (estimated at 0.00256 ppm) in fall 2012 (0.00278 ppm), in spring 2013 (estimated at 0.00230 ppm), in fall 2013 (0.00270 ppm), and during

the spring 2014 sampling event (an estimated 0.0272 ppm). The spring 2014 detection was approximately an order of magnitude higher than all the other detections at this well, indicating the detection may be an anomaly. Overall, cadmium has been detected in well

OPCA-MW-1RR in six of 12 sampling rounds and the average concentration of cadmium in this well when the anomalous spring 2014 result is incorporated (0.00379 ppm) is below the GW-3 standard. The average concentration when the spring 2014 result is excluded

(0.0016 ppm) is less than half of the GW-3 standard.

In the Spring 2013 OPCA Groundwater Trend Evaluation Report, an apparent increasing

trend in cadmium concentration at this well was identified during recent results (spring 2010 to spring 2013), but not in the overall dataset for cadmium in this well. Monitoring of cadmium downgradient of well OPCA-MW-1RR is ongoing at well OPCA-MW-2R.

Cadmium was not detected in well OPCA-MW-2R during 23 of 26 sampling rounds conducted there, including the spring 2014 round. None of the three detections of cadmium at well OPCA-MW-2R were above the GW-3 standard. At well OPCA-MW-2R, the average

detected concentration of cadmium is only 0.00131 ppm while the overall average concentration of cadmium is only 0.00198 ppm (due partially to the detection limit being higher than estimated concentrations reported during certain sampling events), both below

half of the GW-3 standard. Downgradient well OPCA-MW-2R is a GW-3 compliance well monitored for cadmium that is positioned between OPCA-MW-1RR and the property boundary. Based on the current and historical results from downgradient well OPCA-MW-

2R and the sporadic nature of cadmium detections at well OPCA-MW-1RR, the most recent cadmium results appear to be anomalous and downgradient impacts are not seen. Therefore, GE does not propose to modify the sampling program regarding cadmium in well

OPCA-MW-1RR and will continue to evaluate the results in future monitoring reports. If cadmium concentrations at downgradient well OPCA-MW-2R exceed half of the GW-3 standard for cadmium, GE will at that time evaluate the need for additional response actions

beyond the currently proposed confirmatory sampling in wells OPCA-MW-1RR and OPCA-MW-2R to be conducted as part of the fall 2014 sampling event.

Well OPCA-MW-1RR has had sporadic (three out of 12 sampling events) detections of lead. In spring 2014, lead was detected in well OPCA-MW-1RR at an estimated concentration (0.00982 ppm) slightly lower than the GW-3 standard of 0.010 ppm. Lead

was previously detected in this well in fall 2008 (0.00395 BJ ppm) and fall 2011 (0.00854 J ppm). The average concentration of lead in well OPCA-MW-1RR is 0.00503 ppm; however, that calculated average may be artificially elevated because a reporting limit equal

Page 40: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 33

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

to the 0.01 ppm GW-3 standard was utilized during most of the sampling events, including during eight rounds where no lead was detected (a theoretical concentration equal to half of

the reporting limit is utilized in place of non-detected results in the average concentration calculations). Due to the high number of non-detected results (nine out of 12 sampling events) for lead at well OPCA-MW-1RR, the resulting average calculated concentration

would be biased toward 0.005 ppm, which is also 50% of the GW-3 standard, even if the actual concentration of lead during the non-detect rounds was lower. Since lead is only sporadically detected approximately every four to five years, there is no apparent trend in

the lead concentration in well OPCA-MW-1RR and all detections have been below the GW-3 standard, no further actions beyond continued sampling of lead at this location are necessary.

Well OPCA-MW-7 contained trace estimated concentrations of cadmium during five of the previous 24 sampling events. However, in spring 2014 the cadmium concentration

(0.00208 ppm) was slightly greater than 50% of the GW-3 standard (0.004 ppm). The spring 2014 detection combined with the detection limit historically being approximately equal to the GW-3 standard result in an average concentration of 0.00208 ppm cadmium in

well OPCA-MW-7, which is slightly greater than 50% of the GW-3 standard. As cadmium is only sporadically detected in well OPCA-MW-7, there is no trend apparent in the cadmium concentration and, because cadmium has only been detected once at a concentration

greater than 50% of the GW-3 standard in well OPCA-MW-7, no further actions beyond continued sampling of cadmium at this location are necessary. Accordingly, no response actions beyond continued sampling in the post-closure program are proposed or necessary

at the GW-3 compliance wells. Potential trends in constituent concentrations will be more fully re-evaluated in the next OPCA Groundwater Trend Evaluation Report (spring 2015).

5.3 Field Activities Schedule

GE anticipates that the fall 2014 post-closure groundwater sampling event for the OPCAs

will take place in October and/or November 2014. Semi-annual sampling and analyses will be performed at the 12 OPCA groundwater monitoring program wells illustrated on Figure 2. Analyses of groundwater samples will be performed as listed in Table 1.

Groundwater elevations from the OPCA monitoring program wells listed in Table 2 will continue to be monitored on a semi-annual basis, with the next event occurring in October

2014. GE will also coordinate that event with the collection of semi-annual groundwater elevation data to be conducted at the nearby GMAs.

Page 41: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\syracuse-ny\ge\ge_pittsfield_cd_opcas\reports and presentations\gw mon rpt spring 2014\2251411324rpt.doc 34

Spring 2014 OPCA Groundwater Monitoring Report

General Electric Company Pittsfield, Massachusetts

Prior to performance of these field activities, GE will provide EPA with 7 days advance notice to allow: (1) the assignment of field oversight personnel; (2) preparations to split

samples with EPA’s contractor; and (3) the collection by EPA of groundwater levels at the Allendale School property wells in conjunction with GE’s groundwater elevation monitoring activities at the OPCA wells (if desired).

5.4 Reporting Schedule

GE will continue to provide the results of preliminary groundwater elevation and analytical data in its monthly reports on overall activities at the GE-Pittsfield/Housatonic River Site.

In accordance with the previously approved reporting schedule for this monitoring program, GE will submit a Fall 2014 OPCA Groundwater Monitoring Event Evaluation Report within 60 days following receipt of the final analytical data packages from the sampling event.

That report will present the final, validated fall 2014 sampling results and a brief discussion of the results, including the evaluations of the data and any proposals to further modify the post-closure monitoring program, if necessary.

As provided in the Post-Closure Groundwater Monitoring Plan, subsequent semi-annual Monitoring Event Evaluation Reports will be submitted within 60 days following receipt of

the final analytical data packages from each event, and Trend Evaluation Reports will be prepared and submitted in place of a Monitoring Event Evaluation Report at two-year intervals over the duration of the OPCA post-closure monitoring program (within 75 days

after receipt of the final analytical data packages from the current monitoring event). The next Trend Evaluation Report is scheduled to be submitted within 75 days following receipt of the final analytical data packages from the spring 2015 sampling event.

Page 42: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Tables

Page 43: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 1Groundwater Quality Monitoring Program Summary - Spring 2014

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts

78-1 GW-2 Benchmark / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)

78-6 GW-2 Benchmark / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)

GMA4-6 GW-2 Benchmark / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)

H78B-15 GW-2 Compliance / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)

OPCA-MW-1RR

GW-2 Benchmark / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)

OPCA-MW-2R GW-2 Benchmark / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)All analytes collected using low-flow techniques.Passive diffusion bags were not needed for VOC sampling.

OPCA-MW-3 GW-2 Benchmark / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)

OPCA-MW-4 GW-2 Compliance / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)All non-VOC analytes were collected with a peristaltic pump after the well was pumped dry. VOCs were collected with a passive diffusion bag.

OPCA-MW-5R GW-2 Compliance / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)All non-VOC analytes were collected with a peristaltic pump after the well was pumped dry. VOCs were collected with a passive diffusion bag.

OPCA-MW-6 GW-2 Benchmark / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)

OPCA-MW-7 GW-2 Benchmark / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)All non-VOC analytes were collected with a peristaltic pump after the well was pumped dry. VOCs were collected with a passive diffusion bag.

OPCA-MW-8R GW-2 Benchmark / GW-3 Compliance Semi-Annual PCB/App. IX (1,2)All non-VOC analytes were collected with a bladder pump. VOCs were collected with a passive diffusion bag.

Notes:

2. Per the post-closure groundwater monitoring program protocols, analyses for PCBs, metals, and cyanide are performed on filtered samples only.

1. Appendix IX+3 analyses consists of those non-PCB constituents listed in Appendix IX of 40 CFR Part 264 (excluding pesticides and herbicides) plus three constituents -- benzidine, 2-chloroethyl vinyl ether, and 1,2-diphenylhydrazine.

Well Number Monitoring Well UsageSampling Schedule

Analyses Comments

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls123.xlsxTable 1

Page 1 of 17/25/2014

Page 44: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 2Groundwater Elevation Monitoring Program Summary - Spring 2014

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts

78-1 Semi-Annual78-6 Semi-Annual

GMA4-6 Semi-AnnualH78B-15 Semi-Annual

OPCA-MW-1RR Semi-AnnualOPCA-MW-2R Semi-AnnualOPCA-MW-3 Semi-AnnualOPCA-MW-4 Semi-Annual

OPCA-MW-5R Semi-AnnualOPCA-MW-6 Semi-AnnualOPCA-MW-7 Semi-Annual

OPCA-MW-8R Semi-Annual

78-2 Semi-Annual78-3 Semi-Annual

GMA4-1 Semi-AnnualGMA4-4 Semi-AnnualGMA4-8 Semi-AnnualGMA4-9 Semi-Annual

H78B-13R Semi-AnnualH78B-17R Semi-Annual

NY-2 Semi-AnnualNY-4 Semi-Annual

UB-MW-6 Semi-Annual

ES1-05 Semi-AnnualES1-20 Semi-Annual

060B-R Semi-AnnualGMA4-2 Semi-AnnualGMA4-3 QuarterlyH78B-16 Semi-Annual

NY-3 Semi-AnnualRF-14 Semi-AnnualRF-15 Semi-Annual

UB-MW-5 Semi-Annual

GMA4-7S Semi-Annual

GMA4-5 Semi-Annual

PZ-1 Semi-AnnualPZ-2 Semi-AnnualPZ-3 Semi-AnnualPZ-4 Semi-Annual

SCH-1 Semi-Annual

Notes:

3. The Allendale School Property Monitoring Wells/Piezometers are monitored by EPA.

Well Number Monitoring Schedule

Groundwater Management Area 1

Commercial Street Site

Additional Wells Monitored Under Post-Closure Program for the OPCAs

Allendale School Property (see Note 3)

Wells Downgradient of GMA 4

OPCA Sampling Wells

Additional Nearby Wells Monitored In Spring 2014 (see Note 2)

Groundwater Management Area 4

1. The listed monitoring wells are monitored for groundwater elevation and NAPL presence at the frequencies shown.2. These additional wells were monitored by GE or EPA as part of groundwater monitoring programs at groundwater management areas adjacent to the OPCAs. The data obtained at these wells was utilized to supplement monitoring results from the OPCA sampling wells and additional monitoring locations in the preparation of groundwater elevation contour mapping.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls123.xlsxTable 2

Page 1 of 1

7/25/2014

Page 45: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 3Monitoring Well Construction Summary - Spring 2014

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts

Ground Measuring Depth Top of Base ofMonitoring Well Surface Point to Top Screen Screen Screen

Well Northing Easting Diameter Elevation Elevation of Screen Length Elevation Elevation

Number (inches) (ft AMSL) (ft AMSL) (ft BGS) (ft) (ft AMSL) (ft AMSL)

OPCA Sampling Wells

78-1 536143.00 136345.00 4.00 1026.56 1026.32 7.16 15.00 1019.40 1004.40

78-6 535917.90 135919.00 4.00 1,012.33 1,012.00 3.00 15.00 1,009.33 994.33

GMA4-6 535774.20 135658.40 2.00 1,009.63 1,009.13 3.01 10.00 1,006.62 996.62

H78B-15 535408.90 136705.20 0.75 1,010.30 1,012.68 6.50 10.00 1,003.80 993.80

OPCA-MW-1RR 535367.60 135561.10 2.00 1,016.63 1,016.42 18.00 10.00 998.63 988.63

OPCA-MW-2R 535176.60 135892.10 2.00 1,016.80 1,018.84 10.00 15.00 1,006.80 991.80

OPCA-MW-3 535299.60 136188.90 2.00 1,015.27 1,014.83 17.97 10.00 997.30 987.30

OPCA-MW-4 535570.50 136222.30 2.00 1,019.27 1,018.67 12.07 10.00 1,007.20 997.20

OPCA-MW-5R 535630.00 136477.40 2.00 1,016.61 1,016.29 11.22 10.00 1,005.39 995.39

OPCA-MW-6 535449.70 136901.20 2.00 1,022.82 1,022.24 15.12 10.00 1,007.70 997.70

OPCA-MW-7 535673.70 136835.80 2.00 1,027.26 1,026.54 14.36 10.00 1,012.90 1,002.90

OPCA-MW-8R 535981.60 136687.00 3.00 1,028.80 1,030.70 5.10 20.00 1,023.70 1,003.70

Additional Wells Monitored Under Post-Closure Program for the OPCAs

78-2 536411.70 136892.70 4.00 1,034.44 1,033.94 5.54 15.00 1,028.90 1,013.90

78-3 535126.60 137132.70 3.00 1,007.28 1,006.87 9.18 15.00 998.10 983.10

GMA4-1 535134.40 136407.20 2.00 1,012.35 1,012.01 13.30 15.00 999.05 984.05

GMA4-4 535332.20 135149.40 2.00 996.55 999.64 4.95 15.00 991.60 976.60

GMA4-8 535107.40 135562.70 2.00 1,020.90 1,020.42 10.00 22.00 1,010.90 988.90

GMA4-9 535004.40 136153.10 2.00 1,000.00 1,002.28 3.00 12.00 997.00 985.00

H78B-13R 534740.20 135327.90 2.00 993.23 992.93 5.00 15.00 988.23 973.23

H78B-17R 534996.00 136659.20 4.00 999.20 1,000.31 14.30 9.30 984.90 975.60

NY-2 534802.40 135675.80 4.00 993.70 996.54 9.50 15.00 984.20 969.20

NY-4 535669.20 135360.10 2.00 1,024.54 1,024.69 17.00 15.00 1,007.54 992.54

UB-MW-6 535541.50 137463.00 2.00 1,021.09 1,020.12 26.54 10.00 994.55 984.55

Survey Coordinates

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls123.xlsxTable 3

Page 1 of 37/25/2014

Page 46: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 3Monitoring Well Construction Summary - Spring 2014

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts

Ground Measuring Depth Top of Base ofMonitoring Well Surface Point to Top Screen Screen Screen

Well Northing Easting Diameter Elevation Elevation of Screen Length Elevation Elevation

Number (inches) (ft AMSL) (ft AMSL) (ft BGS) (ft) (ft AMSL) (ft AMSL)

Survey Coordinates

Additional Nearby Wells Monitored In Spring 2014 (see Note 3)

GMA 1 Monitoring Wells

ES1-05 534749.31 135063.74 2.00 1,023.25 1,022.75 34.86 10.00 988.39 978.39

ES1-20 535314.82 134924.90 0.75 997.82 1,001.56 6.00 10.00 991.82 981.82

GMA 4 Monitoring Wells

060B-R 534740.20 135328.00 2.00 1,003.04 1,002.79 12.00 10.00 991.04 981.04

78-4 535014.00 136554.90 4.00 998.81 998.52 5.31 15.00 993.50 978.50

78-5R 534944.00 136219.20 2.00 997.96 997.36 4.00 15.00 993.96 978.96

GMA4-2 536218.10 137516.30 2.00 1,006.56 1,006.30 9.93 10.00 996.63 986.63

GMA4-3 536289.20 137999.50 2.00 1,004.64 1,004.36 16.59 10.00 988.05 978.05

H78B-16 535040.80 136495.50 1.00 995.60 999.16 3.60 10.00 992.00 982.00

NY-3 535508.40 135077.10 2.00 1,005.79 1,005.30 10.12 15.00 995.67 980.67

RF-14 536833.60 137753.70 4.00 1,002.23 1,001.91 7.33 15.00 994.90 979.90

RF-15 535638.20 137803.00 2.00 1,012.61 1,012.18 9.43 15.00 1,003.18 988.18

SCH-4 535975.46 136030.74 2.00 1,012.27 1,014.05 7.90 10.00 1,004.37 994.37

UB-MW-5 536364.60 137001.00 2.00 1,006.70 1,006.48 7.42 10.00 999.28 989.28

Wells Downgradient of GMA 4

GMA4-7S 534591.50 136528.70 2.00 999.90 1,001.64 10.00 15.00 989.90 974.90

Commercial Street Site Monitoring Well

GMA4-5 534525.10 136816.60 2.00 993.28 993.16 7.72 10.00 985.56 975.56

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls123.xlsxTable 3

Page 2 of 37/25/2014

Page 47: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 3Monitoring Well Construction Summary - Spring 2014

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts

Ground Measuring Depth Top of Base ofMonitoring Well Surface Point to Top Screen Screen Screen

Well Northing Easting Diameter Elevation Elevation of Screen Length Elevation Elevation

Number (inches) (ft AMSL) (ft AMSL) (ft BGS) (ft) (ft AMSL) (ft AMSL)

Survey Coordinates

Allendale School Property Monitoring Wells/Piezometers (see Note 4)

Allendale-PZ-1 535900.23 135753.22 1.25 NR 1,005.60 NR 1.50 1,002.10 1,000.60

Allendale-PZ-2 536112.14 135563.58 1.25 NR 1,009.89 NR 1.50 1,006.39 1,004.89

Allendale-PZ-3 536396.28 135728.63 1.25 NR 1,010.43 NR 1.50 1,006.93 1,005.43

Allendale-PZ-4 536116.06 136119.15 1.25 NR 1,007.96 NR 1.50 1,004.46 1,002.96

SCH-1 536574.57 135606.24 2.00 1,017.59 1,017.11 9.20 10.00 1,008.39 998.39

Notes:1. ft AMSL - Feet above mean sea level.2. ft BGS - Feet below ground surface.3. NR - Not Recorded.

5. The Allendale School Property Monitoring Wells/Piezometers are monitored by EPA.

4. These additional wells were monitored by GE or EPA as part of groundwater monitoring programs at groundwater management areas adjacent to the OPCAs. The data obtained at these wells was utilized to supplement monitoring results from the OPCA sampling wells and additional monitoring locations in the preparation of groundwater elevation contour

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls123.xlsxTable 3

Page 3 of 37/25/2014

Page 48: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 4

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014

Well NumberLand Surface

Elevation (ft AMSL)Measuring Point

Elevation (ft AMSL)Groundwater Elevation

(ft AMSL)Depth to Water (ft

BLS)

78-1 1,026.56 1,026.32 1,017.87 8.6978-6R 1,012.08 1,011.70 1,004.74 7.34

GMA4-6 1,009.63 1,009.13 999.77 9.86H78B-15 1,010.30 1,012.68 998.62 11.68

OPCA-MW-1RR 1,016.63 1,016.42 999.42 17.21OPCA-MW-2R 1,016.80 1,018.84 995.74 21.06OPCA-MW-3 1,015.27 1,014.83 993.71 21.56OPCA-MW-4 1,019.27 1,018.67 1,006.22 13.05

OPCA-MW-5R 1,016.61 1,016.29 1,005.47 11.14OPCA-MW-6 1,022.82 1,022.24 1,007.25 15.57OPCA-MW-7 1,027.26 1,026.54 1,013.36 13.90

OPCA-MW-8R 1,028.80 1,030.70 1,015.90 12.90

78-2 1,034.44 1,033.94 1,024.65 9.7978-3 1,007.28 1,006.87 990.52 16.76

GMA4-1 1,012.35 1,012.06 989.11 23.24GMA4-4 996.55 999.64 987.71 8.84GMA4-8 1,020.90 1,020.42 994.85 26.05GMA4-9 1,000.00 1,002.28 992.80 7.20

H78B-13R 993.23 992.93 983.32 9.91H78B-17R 999.20 1,000.31 987.32 11.88

NY-2 993.70 996.54 980.13 13.57NY-4 1,024.54 1,024.69 1,017.32 7.22

UB-MW-6 1,021.09 1,020.12 1,001.96 19.13

ES1-05 1,023.25 1,022.75 984.09 39.16ES1-20 997.82 1,001.56 987.86 9.96

060B-R 1,003.04 1,002.79 987.89 15.15GMA4-2 1,006.56 1,006.30 993.85 12.71GMA4-3 1,004.64 1,004.36 987.16 17.48H78B-16 995.60 999.16 987.11 8.49

NY-3 1,005.79 1,005.30 990.23 15.56RF-14 1,002.23 1,001.91 993.28 8.95RF-15 1,012.61 1,012.18 998.41 14.20

UB-MW-5 1,006.70 1,006.48 993.39 13.31

GMA4-7S 999.90 1,001.64 985.04 14.86

GMA4-5 993.28 993.34 982.42 10.86

Groundwater Elevation Data - Spring 2014

General Electric Company - Pittsfield, Massachusetts

GMA 4 Monitoring Wells (see Note 5)

OPCA Sampling Wells

Additional Wells Monitored Under Post-Closure Program for the OPCAs

Additional Nearby Wells Monitored In Spring 2014 (see Note 4)GMA 1 Monitoring Wells

Well Downgradient of GMA 4

Commercial Street Site Monitoring Well

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbl4.xlsxTable 4

Page 1 of 2

7/25/2014

Page 49: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 4

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014

Well NumberLand Surface

Elevation (ft AMSL)Measuring Point

Elevation (ft AMSL)Groundwater Elevation

(ft AMSL)Depth to Water (ft

BLS)

Groundwater Elevation Data - Spring 2014

General Electric Company - Pittsfield, Massachusetts

Allendale-PZ-1 No Data 1,005.60 1,001.97 ~3.63Allendale-PZ-2 No Data 1,009.89 1,006.36 ~3.53Allendale-PZ-3 No Data 1,010.43 1,009.82 ~0.61Allendale-PZ-4 No Data 1,007.96 1,007.73 ~0.23

SCH-1 1,017.59 1,017.11 1,013.39 4.20

Notes:1. ft AMSL - Feet Above Mean Sea Level

management areas adjacent to the OPCAs. The data obtained at these wells was utilized to supplement monitoring results OPCA sampling wells and additional monitoring locations in the preparation of groundwater elevation contour mapping.

surface are shown as the ground surface was not surveyed for these locations.5. The Allendale School Property monitoring wells/piezometers were monitored by EPA. Approximate (~) depths below land

4. These additional wells were monitored by GE or EPA as part of groundwater monitoring programs at groundwater from the

2. ft BLS - Feet Below Land Surface3. The Fall groundwater elevation monitoring event was conducted on April 23, 2014 at all wells.

Allendale School Property Monitoring Wells/Piezometers (see Note 5)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbl4.xlsxTable 4

Page 2 of 2

7/25/2014

Page 50: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 5Field Parameter Measurements - Spring 2014

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company- Pittsfield, Massachusetts

7.35 5.42 0.670 0.8 1.45 162.6

5.5 6.73 4.304 49.1 2.227 21.9

6.6 6.57 1.377 0.52 0.38 75.4

6.1 7.30 0.234 0.38 9.95 79.6

11.47 6.57 1.332 6.45 2.68 62.9

10.80 6.39 0.954 5.5 2.28 77.9

12.10 6.60 0.665 3.6 3.50 -6.1

8.01 7.33 0.981 3.78 3.547 105.1

8.7 7.13 0.327 2.60 1.73 -26.7

8.4 7.39 1.812 5.31 9.74 41.1

9.2 6.59 3.334 2.5 8.96 79.4

8.2 7.30 4.285 16.1 9.247 61.2

Notes:

1. Low-Flow: Well parameters were monitored continuously during purging by low-flow techniques.

2. NTU - Nephelometric Turbidity Units.

3. SU - Standard Units.

4. mS/cm - Millisiemens per centimeter.

5. mV - Millivolts.

6. mg/L - Milligrams per liter (ppm).

7. The dissolved oxygen for wells 78-6R, OPCA-MW-4, and OPCA-MW-8R was recorded in the field as percent saturation. This

value was converted to mg/l, taking into account the barometric pressure and the temperture and specific conductance of the

water using the software on: http://water.usgs.gov/software/DOTABLES/ , retrived June 16, 2014.

8. * Denotes monitoring well that was purged dry prior to sampling. The latest representative field parameter reading collected as

water levels approached the base of the well is presented above.

OPCA-MW-8R

OPCA-MW-2R

OPCA-MW-3

OPCA-MW-4*

OPCA-MW-5R*

OPCA-MW-6

OPCA-MW-7*

Dissolved Oxygen (mg/L)

Oxidation-Reduction

Potential (mV)Well ID

Temperature (Degrees Celsius)

pH (Standard Units)

Specific Conductivity

(mS/cm)Turbidity (NTU)

H78B-15

78-1

78-6R

GMA4-6

OPCA-MW-1RR

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbl5.xlsxTable 5

Page 1 of 1

7/25/2014

Page 51: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 6Comparison of Groundwater Analytical Results to MCP Method 1 GW-2 Standards

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: Method 1 GW-2 H78B-15 OPCA-MW-4 OPCA-MW-5RParameter Date Collected: Standards 04/10/14 4/8-5/9/14 4/8-5/9/14Volatile OrganicsChlorobenzene 0.2 ND(0.0010) ND(0.0010) J 0.00036 JTrichloroethene 0.03 (0.005)7 ND(0.0010) 0.0012 J ND(0.0010) JTotal VOCs 5 ND(0.10) 0.0012 J 0.00036 JPCBs-FilteredAroclor-1248 Not Listed ND(0.000066) 0.00031 ND(0.000074)Total PCBs 0.005 ND(0.000066) 0.00031 ND(0.000074)Semivolatile OrganicsNone Detected -- -- -- --

Notes:1. Samples were collected by ARCADIS and submitted to SGS Environmental Services, Inc. for analysis of PCBs and Appendix IX+3

constituents.2. Samples have been validated as per Field Sampling Plan/Quality Assurance Project Plan (FSP/QAPP), General Electric Company,

Pittsfield, Massachusetts, ARCADIS (revised on July 2 , 2013 and approved by EPA on July 23, 2013).2. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.3. Only those constituents detected in one or more samples are summarized.4. Only volatile, PCBs and semivolatile analysis is presented for the MCP Method 1 GW-2 Standards Comparison.5. -- Indicates that all constituents for the parameter group were not detected.6. Total VOCs are being compared to the notification level in the SOW of 5 ppm, as there is no GW-2 standard for Total VOCs.7. The Method 1 GW-2 standard for trichloroethene was revised, effective on June 20, 2014 and the new standard is presented in

parantheses for informational purposes.

Data Qualifiers:

Organics (volatiles, PCBs, semivolatiles)J - Indicates that the associated numerical value is an estimated concentration.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-6

Page 1 of 1

7/25/2014

Page 52: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 7Comparison of Groundwater Analytical Results to GW-2 Benchmark Levels

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: Method 1 GW-2 78-1 78-6R GMA4-6 OPCA-MW-1RRParameter Date Collected: Standards 04/09/14 04/09/14 04/09/14 04/10/14Volatile Organics2-Chloroethylvinylether Not Listed ND(0.025) ND(0.025) R [ND(0.025)] ND(1.0)Acetone 50 ND(0.025) 0.0021 J ND(0.025) [ND(0.025)] ND(1.0)Chloroform 0.05 ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)] 0.0088 JTetrachloroethene 0.05 ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)] 2.4

Trichloroethene 0.03 (0.005)9 ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)] 0.027 JTotal VOCs 5 ND(0.10) 0.0021 J ND(0.10) [ND(0.10)] 2.4 JPCBs-FilteredTotal PCBs 0.005 ND(0.000067) ND(0.000066) ND(0.000068) [ND(0.000070)] ND(0.000067)Semivolatile OrganicsNone Detected -- -- -- -- --

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-7

Page 1 of 2

7/25/2014

Page 53: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 7Comparison of Groundwater Analytical Results to GW-2 Benchmark Levels

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: Method 1 GW-2 OPCA-MW-2R OPCA-MW-3 OPCA-MW-6 OPCA-MW-7 OPCA-MW-8RParameter Date Collected: Standards 04/08/14 04/08/14 04/10/14 4/8-5/9/14 4/9-5/9/14Volatile Organics2-Chloroethylvinylether Not Listed ND(0.025) ND(0.025) ND(0.025) ND(0.025) J ND(0.025) JAcetone 50 ND(0.025) ND(0.025) ND(0.025) ND(0.047) J ND(0.039) JChloroform 0.05 ND(0.0010) ND(0.0010) ND(0.0010) ND(0.0010) J ND(0.0010) JTetrachloroethene 0.05 ND(0.0010) ND(0.0010) ND(0.0010) ND(0.0010) J ND(0.0010) J

Trichloroethene 0.03 (0.005)9 ND(0.0010) ND(0.0010) ND(0.0010) ND(0.0010) J ND(0.0010) JTotal VOCs 5 ND(0.10) ND(0.10) ND(0.10) ND(0.10) ND(0.10)PCBs-FilteredTotal PCBs 0.005 ND(0.000070) ND(0.000066) ND(0.000066) ND(0.000075) ND(0.000066)Semivolatile OrganicsNone Detected -- -- -- -- -- --

Notes:

1. Samples were collected by ARCADIS and submitted to SGS Environmental Services, Inc. for analysis of PCBs and Appendix IX+3 constituents.2. Samples have been validated as per Field Sampling Plan/Quality Assurance Project Plan (FSP/QAPP), General Electric Company,

Pittsfield, Massachusetts, ARCADIS (revised on July 2 , 2013 and approved by EPA on July 23, 2013).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 are summarized.5. Field duplicate sample results are presented in brackets.6. Only volatile, PCBs and semivolatile analysis is presented for the MCP Method 1 GW-2 Standards Comparison.7. Shading indicates that value exceeds the Method 1 GW-2 benchmark level.8. -- Indicates that all constituents for the parameter group were not detected.9. The Method 1 GW-2 standard for trichloroethene was revised, effective on June 20, 2014 and the new standard is presented in

parantheses for informational purposes.

Data Qualifiers:

Organics (volatiles, PCBs, semivolatiles, dioxin/furans)J - Indicates that the associated numerical value is an estimated concentration.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-7

Page 2 of 2

7/25/2014

Page 54: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 8Comparison of Groundwater Analytical Results to MCP Method 1 GW-3 Standards

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: Method 1 or Method 2 78-1 78-6RParameter Date Collected: GW-3 Standards 04/09/14 04/09/14Volatile Organics2-Chloroethylvinylether Not Listed ND(0.025) ND(0.025)Acetone 50 ND(0.025) 0.0021 JChlorobenzene 1 ND(0.0010) ND(0.0010)Chloroform 20 ND(0.0010) ND(0.0010)Tetrachloroethene 30 ND(0.0010) ND(0.0010)Trichloroethene 5 ND(0.0010) ND(0.0010)PCBs-FilteredAroclor-1248 Not Listed ND(0.000067) ND(0.000066)Total PCBs 0.01 ND(0.000067) ND(0.000066)Semivolatile OrganicsNone Detected -- -- --Furans2,3,7,8-TCDF Not Listed ND(0.00000000056) ND(0.00000000027)TCDFs (total) Not Listed ND(0.00000000056) ND(0.00000000027)1,2,3,7,8-PeCDF Not Listed 0.0000000015 J ND(0.00000000043)2,3,4,7,8-PeCDF Not Listed ND(0.00000000066) ND(0.00000000043)PeCDFs (total) Not Listed 0.0000000027 J ND(0.00000000043)1,2,3,4,7,8-HxCDF Not Listed ND(0.00000000051) ND(0.00000000028)1,2,3,6,7,8-HxCDF Not Listed ND(0.00000000050) ND(0.00000000026)1,2,3,7,8,9-HxCDF Not Listed ND(0.00000000073) ND(0.00000000037)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000055) ND(0.00000000030)HxCDFs (total) Not Listed ND(0.00000000056) ND(0.00000000030)1,2,3,4,6,7,8-HpCDF Not Listed ND(0.00000000046) ND(0.00000000057)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.00000000086) ND(0.00000000062)HpCDFs (total) Not Listed ND(0.00000000062) ND(0.00000000057)OCDF Not Listed ND(0.0000000019) ND(0.00000000097)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000069) ND(0.00000000052)TCDDs (total) Not Listed 0.0000000013 ND(0.00000000052)1,2,3,7,8-PeCDD Not Listed ND(0.00000000084) ND(0.00000000046)PeCDDs (total) Not Listed ND(0.00000000084) ND(0.00000000046)1,2,3,4,7,8-HxCDD Not Listed ND(0.00000000072) ND(0.00000000040)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000075) ND(0.00000000042)1,2,3,7,8,9-HxCDD Not Listed 0.0000000012 J 0.00000000095 JHxCDDs (total) Not Listed ND(0.00000000075) ND(0.00000000043)1,2,3,4,6,7,8-HpCDD Not Listed ND(0.0000000018) ND(0.00000000056)HpCDDs (total) Not Listed 0.0000000011 J ND(0.00000000056)OCDD Not Listed ND(0.0000000048) ND(0.0000000074)Total TEQs (1998 WHO TEFs) 0.00004 0.0000000014 0.00000000083Inorganics-UnfilteredSulfide Not Listed ND(2.00) ND(2.00)Inorganics-FilteredBarium 50 ND(0.100) 0.113Beryllium 0.2 ND(0.0100) J ND(0.0100) JCadmium 0.004 ND(0.000500) 0.000200 JChromium 0.3 ND(0.0100) J 0.00148 BLead 0.01 ND(0.0100) J ND(0.0100) JNickel 0.2 ND(0.0100) J ND(0.0100)Selenium 0.1 ND(0.0200) J ND(0.0200) JThallium 3 ND(0.0100) J ND(0.0100) JZinc 0.9 0.00351 B ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-8

Page 1 of 6

7/25/2014

Page 55: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 8Comparison of Groundwater Analytical Results to MCP Method 1 GW-3 Standards

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: Method 1 or Method 2 GMA4-6 H78B-15Parameter Date Collected: GW-3 Standards 04/09/14 04/10/14Volatile Organics2-Chloroethylvinylether Not Listed R [ND(0.025)] ND(0.025)Acetone 50 ND(0.025) [ND(0.025)] ND(0.025)Chlorobenzene 1 ND(0.0010) [ND(0.0010)] ND(0.0010)Chloroform 20 ND(0.0010) [ND(0.0010)] ND(0.0010)Tetrachloroethene 30 ND(0.0010) [ND(0.0010)] ND(0.0010)Trichloroethene 5 ND(0.0010) [ND(0.0010)] ND(0.0010)PCBs-FilteredAroclor-1248 Not Listed ND(0.000068) [ND(0.000070)] ND(0.000066)Total PCBs 0.01 ND(0.000068) [ND(0.000070)] ND(0.000066)Semivolatile OrganicsNone Detected -- -- --Furans2,3,7,8-TCDF Not Listed ND(0.00000000065) [ND(0.00000000054)] ND(0.00000000047)TCDFs (total) Not Listed ND(0.00000000065) [ND(0.00000000054)] ND(0.00000000047)1,2,3,7,8-PeCDF Not Listed ND(0.00000000053) [ND(0.00000000051)] ND(0.00000000052)2,3,4,7,8-PeCDF Not Listed ND(0.00000000053) [ND(0.00000000051)] ND(0.00000000052)PeCDFs (total) Not Listed 0.0000000018 [ND(0.00000000051)] ND(0.00000000052)1,2,3,4,7,8-HxCDF Not Listed ND(0.00000000049) [ND(0.00000000053)] ND(0.00000000046)1,2,3,6,7,8-HxCDF Not Listed 0.00000000063 J [ND(0.00000000048)] ND(0.00000000044)1,2,3,7,8,9-HxCDF Not Listed ND(0.00000000071) [ND(0.00000000079)] ND(0.00000000067)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000053) [ND(0.00000000055)] ND(0.00000000050)HxCDFs (total) Not Listed ND(0.00000000054) [ND(0.00000000057)] ND(0.00000000051)1,2,3,4,6,7,8-HpCDF Not Listed ND(0.00000000054) [ND(0.00000000051)] ND(0.00000000097)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.00000000077) [ND(0.00000000093)] ND(0.00000000085)HpCDFs (total) Not Listed ND(0.00000000054) [ND(0.00000000068)] ND(0.00000000097)OCDF Not Listed ND(0.0000000017) [ND(0.0000000015)] ND(0.0000000014)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000080) [ND(0.00000000083)] ND(0.00000000066)TCDDs (total) Not Listed ND(0.00000000080) [0.0000000015] ND(0.00000000066)1,2,3,7,8-PeCDD Not Listed ND(0.00000000079) [ND(0.00000000091)] ND(0.00000000066)PeCDDs (total) Not Listed ND(0.00000000079) [ND(0.00000000091)] ND(0.00000000066)1,2,3,4,7,8-HxCDD Not Listed ND(0.00000000080) [ND(0.00000000075)] ND(0.00000000067)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000078) [ND(0.00000000080)] ND(0.00000000065)1,2,3,7,8,9-HxCDD Not Listed 0.00000000098 J [0.0000000015 J] ND(0.00000000070)HxCDDs (total) Not Listed ND(0.00000000082) [0.0000000015] ND(0.00000000067)1,2,3,4,6,7,8-HpCDD Not Listed ND(0.0000000013) [ND(0.0000000012)] ND(0.00000000087)HpCDDs (total) Not Listed ND(0.0000000012) [ND(0.0000000012)] ND(0.00000000087)OCDD Not Listed ND(0.0000000049) [ND(0.0000000031)] ND(0.0000000035)Total TEQs (1998 WHO TEFs) 0.00004 0.0000000013 [0.0000000014] 0.0000000010Inorganics-UnfilteredSulfide Not Listed ND(2.00) [ND(2.00)] ND(2.00)Inorganics-FilteredBarium 50 ND(0.100) [ND(0.100)] ND(0.100)Beryllium 0.2 ND(0.0100) J [0.0403 J] ND(0.0100) JCadmium 0.004 ND(0.000500) [ND(0.000500)] ND(0.000500) JChromium 0.3 ND(0.0100) J [ND(0.0100) J] 0.00127 BLead 0.01 ND(0.0100) J [ND(0.0100) J] 0.00826 JNickel 0.2 ND(0.0100) J [ND(0.0100) J] ND(0.0100)Selenium 0.1 ND(0.0200) J [ND(0.0200) J] ND(0.0200) JThallium 3 0.0105 J [ND(0.0100) J] ND(0.0100) JZinc 0.9 ND(0.0200) [0.00489 B] ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-8

Page 2 of 6

7/25/2014

Page 56: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 8Comparison of Groundwater Analytical Results to MCP Method 1 GW-3 Standards

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: Method 1 or Method 2 OPCA-MW-1RR OPCA-MW-2R OPCA-MW-3Parameter Date Collected: GW-3 Standards 04/10/14 04/08/14 04/08/14Volatile Organics2-Chloroethylvinylether Not Listed ND(1.0) ND(0.025) ND(0.025)Acetone 50 ND(1.0) ND(0.025) ND(0.025)Chlorobenzene 1 ND(0.040) ND(0.0010) ND(0.0010)Chloroform 20 0.0088 J ND(0.0010) ND(0.0010)Tetrachloroethene 30 2.4 ND(0.0010) ND(0.0010)Trichloroethene 5 0.027 J ND(0.0010) ND(0.0010)PCBs-FilteredAroclor-1248 Not Listed ND(0.000067) ND(0.000070) ND(0.000066)Total PCBs 0.01 ND(0.000067) ND(0.000070) ND(0.000066)Semivolatile OrganicsNone Detected -- -- -- --Furans2,3,7,8-TCDF Not Listed ND(0.00000000052) ND(0.00000000084) ND(0.00000000095)TCDFs (total) Not Listed 0.0000000054 ND(0.00000000084) ND(0.00000000095)1,2,3,7,8-PeCDF Not Listed ND(0.00000000046) ND(0.00000000087) ND(0.00000000077)2,3,4,7,8-PeCDF Not Listed ND(0.00000000047) ND(0.00000000081) ND(0.00000000080)PeCDFs (total) Not Listed ND(0.00000000046) ND(0.00000000084) ND(0.00000000078)1,2,3,4,7,8-HxCDF Not Listed ND(0.00000000052) ND(0.00000000086) ND(0.00000000086)1,2,3,6,7,8-HxCDF Not Listed ND(0.00000000046) ND(0.00000000075) ND(0.00000000081)1,2,3,7,8,9-HxCDF Not Listed ND(0.00000000073) ND(0.0000000012) ND(0.0000000012)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000054) ND(0.00000000086) ND(0.00000000086)HxCDFs (total) Not Listed ND(0.00000000055) ND(0.00000000089) ND(0.00000000091)1,2,3,4,6,7,8-HpCDF Not Listed ND(0.00000000049) ND(0.00000000080) ND(0.00000000086)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.00000000090) ND(0.0000000014) ND(0.0000000015)HpCDFs (total) Not Listed ND(0.00000000066) ND(0.0000000011) ND(0.0000000011)OCDF Not Listed ND(0.0000000018) ND(0.0000000025) ND(0.0000000022)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000066) ND(0.0000000014) ND(0.0000000019)TCDDs (total) Not Listed ND(0.00000000066) ND(0.0000000014) ND(0.0000000019)1,2,3,7,8-PeCDD Not Listed ND(0.00000000084) ND(0.0000000012) ND(0.0000000014)PeCDDs (total) Not Listed ND(0.00000000084) ND(0.0000000012) ND(0.0000000014)1,2,3,4,7,8-HxCDD Not Listed ND(0.00000000073) ND(0.0000000012) ND(0.0000000010)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000072) ND(0.0000000013) ND(0.00000000098)1,2,3,7,8,9-HxCDD Not Listed ND(0.00000000077) ND(0.0000000014) ND(0.0000000011)HxCDDs (total) Not Listed ND(0.00000000073) ND(0.0000000013) ND(0.0000000010)1,2,3,4,6,7,8-HpCDD Not Listed ND(0.00000000075) ND(0.0000000014) ND(0.0000000012)HpCDDs (total) Not Listed ND(0.00000000075) ND(0.0000000014) ND(0.0000000012)OCDD Not Listed ND(0.0000000049) ND(0.0000000060) ND(0.0000000040)Total TEQs (1998 WHO TEFs) 0.00004 0.0000000011 0.0000000019 0.0000000022Inorganics-UnfilteredSulfide Not Listed ND(2.00) 0.660 B ND(2.00)Inorganics-FilteredBarium 50 0.0401 B ND(0.100) ND(0.100)Beryllium 0.2 ND(0.0100) J ND(0.0100) J ND(0.0100) JCadmium 0.004 0.0273 J ND(0.000500) 0.000260 BChromium 0.3 0.00209 B ND(0.0100) J ND(0.0100) JLead 0.01 0.00982 J ND(0.0100) J ND(0.0100) JNickel 0.2 ND(0.0100) ND(0.0100) J 0.00357 JSelenium 0.1 ND(0.0200) J 0.00876 J ND(0.0200) JThallium 3 0.0102 J 0.0107 J ND(0.0100) JZinc 0.9 ND(0.0200) ND(0.0200) 0.00959 B

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-8

Page 3 of 6

7/25/2014

Page 57: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 8Comparison of Groundwater Analytical Results to MCP Method 1 GW-3 Standards

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: Method 1 or Method 2 OPCA-MW-4 OPCA-MW-5R OPCA-MW-6Parameter Date Collected: GW-3 Standards 4/8-5/9/14 4/8-5/9/14 04/10/14Volatile Organics2-Chloroethylvinylether Not Listed ND(0.025) J ND(0.025) J ND(0.025)Acetone 50 ND(0.046) J ND(0.038) J ND(0.025)Chlorobenzene 1 ND(0.0010) J 0.00036 J ND(0.0010)Chloroform 20 ND(0.0010) J ND(0.0010) J ND(0.0010)Tetrachloroethene 30 ND(0.0010) J ND(0.0010) J ND(0.0010)Trichloroethene 5 0.0012 J ND(0.0010) J ND(0.0010)PCBs-FilteredAroclor-1248 Not Listed 0.00031 ND(0.000074) ND(0.000066)Total PCBs 0.01 0.00031 ND(0.000074) ND(0.000066)Semivolatile OrganicsNone Detected -- -- -- --Furans2,3,7,8-TCDF Not Listed 0.0000000023 J ND(0.00000000073) 0.0000000013 JTCDFs (total) Not Listed 0.000000024 J 0.0000000035 J 0.00000000131,2,3,7,8-PeCDF Not Listed ND(0.00000000073) ND(0.00000000067) ND(0.00000000056)2,3,4,7,8-PeCDF Not Listed ND(0.00000000075) 0.00000000092 J ND(0.00000000054)PeCDFs (total) Not Listed 0.000000071 J 0.000000015 J ND(0.00000000055)1,2,3,4,7,8-HxCDF Not Listed 0.0000000011 J 0.0000000023 J ND(0.00000000045)1,2,3,6,7,8-HxCDF Not Listed ND(0.00000000070) 0.0000000016 J ND(0.00000000042)1,2,3,7,8,9-HxCDF Not Listed ND(0.0000000010) ND(0.00000000098) ND(0.00000000070)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000077) 0.0000000019 J ND(0.00000000051)HxCDFs (total) Not Listed 0.000000014 0.000000018 J 0.000000000671,2,3,4,6,7,8-HpCDF Not Listed ND(0.00000000074) 0.0000000044 J ND(0.00000000090)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.0000000010) 0.0000000013 J ND(0.0000000011)HpCDFs (total) Not Listed ND(0.00000000074) 0.0000000089 J ND(0.00000000090)OCDF Not Listed ND(0.0000000024) 0.0000000041 J ND(0.0000000019)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000086) ND(0.0000000011) ND(0.00000000060)TCDDs (total) Not Listed ND(0.00000000086) 0.0000000016 ND(0.00000000060)1,2,3,7,8-PeCDD Not Listed ND(0.0000000011) ND(0.0000000012) ND(0.00000000065)PeCDDs (total) Not Listed ND(0.0000000011) ND(0.0000000012) ND(0.00000000065)1,2,3,4,7,8-HxCDD Not Listed ND(0.00000000095) ND(0.00000000080) ND(0.00000000075)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000098) ND(0.00000000088) ND(0.00000000073)1,2,3,7,8,9-HxCDD Not Listed ND(0.0000000011) 0.0000000011 J ND(0.00000000079)HxCDDs (total) Not Listed ND(0.00000000099) 0.0000000049 J ND(0.00000000076)1,2,3,4,6,7,8-HpCDD Not Listed ND(0.0000000012) ND(0.0000000044) ND(0.0000000010)HpCDDs (total) Not Listed ND(0.0000000012) 0.0000000053 J ND(0.0000000010)OCDD Not Listed ND(0.0000000063) 0.000000024 J ND(0.0000000067)Total TEQs (1998 WHO TEFs) 0.00004 0.0000000018 0.0000000026 0.0000000011Inorganics-UnfilteredSulfide Not Listed ND(2.00) ND(2.00) ND(2.00)Inorganics-FilteredBarium 50 ND(0.100) ND(0.100) ND(0.100)Beryllium 0.2 ND(0.0100) J ND(0.0100) J ND(0.0100) JCadmium 0.004 0.0000700 B 0.00176 ND(0.000500) JChromium 0.3 ND(0.0100) J ND(0.0100) J ND(0.0100)Lead 0.01 ND(0.0100) J ND(0.0100) J ND(0.0100) JNickel 0.2 ND(0.0100) J ND(0.0100) J ND(0.0100)Selenium 0.1 ND(0.0200) J ND(0.0200) J ND(0.0200) JThallium 3 0.00805 J ND(0.0100) J ND(0.0100) JZinc 0.9 0.0177 B 0.263 ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-8

Page 4 of 6

7/25/2014

Page 58: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 8Comparison of Groundwater Analytical Results to MCP Method 1 GW-3 Standards

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: Method 1 or Method 2 OPCA-MW-7 OPCA-MW-8RParameter Date Collected: GW-3 Standards 4/8-5/9/14 4/9-5/9/14Volatile Organics2-Chloroethylvinylether Not Listed ND(0.025) J ND(0.025) JAcetone 50 ND(0.047) J ND(0.039) JChlorobenzene 1 ND(0.0010) J ND(0.0010) JChloroform 20 ND(0.0010) J ND(0.0010) JTetrachloroethene 30 ND(0.0010) J ND(0.0010) JTrichloroethene 5 ND(0.0010) J ND(0.0010) JPCBs-FilteredAroclor-1248 Not Listed ND(0.000075) ND(0.000066)Total PCBs 0.01 ND(0.000075) ND(0.000066)Semivolatile OrganicsNone Detected -- -- --Furans2,3,7,8-TCDF Not Listed ND(0.00000000065) ND(0.00000000045)TCDFs (total) Not Listed ND(0.00000000065) ND(0.00000000045)1,2,3,7,8-PeCDF Not Listed ND(0.00000000059) ND(0.00000000044)2,3,4,7,8-PeCDF Not Listed ND(0.00000000061) ND(0.00000000042)PeCDFs (total) Not Listed 0.00000000092 ND(0.00000000043)1,2,3,4,7,8-HxCDF Not Listed 0.00000000054 J ND(0.00000000046)1,2,3,6,7,8-HxCDF Not Listed ND(0.00000000047) ND(0.00000000044)1,2,3,7,8,9-HxCDF Not Listed ND(0.00000000070) ND(0.00000000064)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000050) ND(0.00000000047)HxCDFs (total) Not Listed ND(0.00000000053) ND(0.00000000049)1,2,3,4,6,7,8-HpCDF Not Listed ND(0.0000000014) ND(0.00000000046)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.00000000089) ND(0.00000000085)HpCDFs (total) Not Listed ND(0.0000000014) ND(0.00000000046)OCDF Not Listed 0.0000000020 J ND(0.0000000014)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000096) ND(0.00000000075)TCDDs (total) Not Listed 0.0000000017 ND(0.00000000075)1,2,3,7,8-PeCDD Not Listed ND(0.00000000087) ND(0.00000000067)PeCDDs (total) Not Listed ND(0.00000000087) 0.000000000751,2,3,4,7,8-HxCDD Not Listed ND(0.00000000071) ND(0.00000000050)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000073) ND(0.00000000051)1,2,3,7,8,9-HxCDD Not Listed ND(0.00000000077) 0.0000000013 JHxCDDs (total) Not Listed ND(0.00000000073) 0.0000000027 J1,2,3,4,6,7,8-HpCDD Not Listed ND(0.0000000013) ND(0.0000000017)HpCDDs (total) Not Listed 0.0000000016 J ND(0.0000000017)OCDD Not Listed ND(0.0000000085) ND(0.000000011)Total TEQs (1998 WHO TEFs) 0.00004 0.0000000014 0.0000000011Inorganics-UnfilteredSulfide Not Listed ND(2.00) ND(2.00)Inorganics-FilteredBarium 50 0.0540 B 0.0679 BBeryllium 0.2 0.00872 J ND(0.0100) JCadmium 0.004 0.00208 ND(0.000500)Chromium 0.3 ND(0.0100) J ND(0.0100) JLead 0.01 ND(0.0100) J ND(0.0100) JNickel 0.2 ND(0.0100) J 0.00346 JSelenium 0.1 0.00856 J ND(0.0200) JThallium 3 ND(0.0100) J 0.00992 JZinc 0.9 0.0181 B ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-8

Page 5 of 6

7/25/2014

Page 59: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 8Comparison of Groundwater Analytical Results to MCP Method 1 GW-3 Standards

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

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

Appendix IX+3 constituents.2.   Samples have been validated as per Field Sampling Plan/Quality Assurance Project Plan (FSP/QAPP), General

Electric Company, Pittsfield, Massachusetts, ARCADIS (revised on July 2 , 2013 and approved by EPA on July 23, 2013).3. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.4. Total 2,3,7,8-TCDD toxicity equivalents (TEQs) were calculated using Toxicity Equivalency Factors (TEFs) derived by

the World Health Organization (WHO) and published by Van den Berg et al. in Environmental Health Perspectives 106(2), December 1998.

4. Field duplicate sample results are presented in brackets.5. With the exception of dioxin/furans only those constituents detected in one or more samples are summarized.6. Sulfide is the only inorganic constituent which was submitted for analysis using an unfiltered sample.7. -- Indicates that all constituents for the parameter group were not detected.8. The listed Method 2 GW-3 standards for cobalt and copper were approved for use at all GMAs by EPA in a letter to

GE dated July 30, 2008.9. Shading indicates that value exceeds the Method 1 or Method 2 GW-3 Standards.

Data Qualifiers:

Organics (volatiles, PCBs, semivolatiles, dioxin/furans)J - Indicates that the associated numerical value is an estimated concentration.R - Data was rejected due to a deficiency in the data generation process.

InorganicsB - Indicates an estimated value between the method detection limit (MDL) and reporting limit (RL).J - Indicates that the associated numerical value is an estimated concentration.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-8 Notes

Page 6 of 6

7/25/2014

Page 60: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 9Comparison of Groundwater Analytical Results to MCP UCLs for Groundwater

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: MCP UCL 78-1 78-6RParameter Date Collected: for GroundWater 04/09/14 04/09/14Volatile Organics2-Chloroethylvinylether Not Listed ND(0.025) ND(0.025)Acetone 100 ND(0.025) 0.0021 JChlorobenzene 10 ND(0.0010) ND(0.0010)Chloroform 100 ND(0.0010) ND(0.0010)Tetrachloroethene 100 ND(0.0010) ND(0.0010)Trichloroethene 50 ND(0.0010) ND(0.0010)PCBs-FilteredAroclor-1248 Not Listed ND(0.000067) ND(0.000066)Total PCBs 0.1 ND(0.000067) ND(0.000066)Semivolatile OrganicsNone Detected -- -- --Furans2,3,7,8-TCDF Not Listed ND(0.00000000056) ND(0.00000000027)TCDFs (total) Not Listed ND(0.00000000056) ND(0.00000000027)1,2,3,7,8-PeCDF Not Listed 0.0000000015 J ND(0.00000000043)2,3,4,7,8-PeCDF Not Listed ND(0.00000000066) ND(0.00000000043)PeCDFs (total) Not Listed 0.0000000027 J ND(0.00000000043)1,2,3,4,7,8-HxCDF Not Listed ND(0.00000000051) ND(0.00000000028)1,2,3,6,7,8-HxCDF Not Listed ND(0.00000000050) ND(0.00000000026)1,2,3,7,8,9-HxCDF Not Listed ND(0.00000000073) ND(0.00000000037)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000055) ND(0.00000000030)HxCDFs (total) Not Listed ND(0.00000000056) ND(0.00000000030)1,2,3,4,6,7,8-HpCDF Not Listed ND(0.00000000046) ND(0.00000000057)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.00000000086) ND(0.00000000062)HpCDFs (total) Not Listed ND(0.00000000062) ND(0.00000000057)OCDF Not Listed ND(0.0000000019) ND(0.00000000097)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000069) ND(0.00000000052)TCDDs (total) Not Listed 0.0000000013 ND(0.00000000052)1,2,3,7,8-PeCDD Not Listed ND(0.00000000084) ND(0.00000000046)PeCDDs (total) Not Listed ND(0.00000000084) ND(0.00000000046)1,2,3,4,7,8-HxCDD Not Listed ND(0.00000000072) ND(0.00000000040)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000075) ND(0.00000000042)1,2,3,7,8,9-HxCDD Not Listed 0.0000000012 J 0.00000000095 JHxCDDs (total) Not Listed ND(0.00000000075) ND(0.00000000043)1,2,3,4,6,7,8-HpCDD Not Listed ND(0.0000000018) ND(0.00000000056)HpCDDs (total) Not Listed 0.0000000011 J ND(0.00000000056)OCDD Not Listed ND(0.0000000048) ND(0.0000000074)Total TEQs (1998 WHO TEFs) 0.0004 0.0000000014 0.00000000083Inorganics-UnfilteredSulfide Not Listed ND(2.00) ND(2.00)Inorganics-FilteredBarium 100 ND(0.100) 0.113Beryllium 2 ND(0.0100) J ND(0.0100) JCadmium 0.05 ND(0.000500) 0.000200 JChromium 3 ND(0.0100) J 0.00148 BLead 0.15 ND(0.0100) J ND(0.0100) JNickel 2 ND(0.0100) J ND(0.0100)Selenium 1 ND(0.0200) J ND(0.0200) JThallium 30 ND(0.0100) J ND(0.0100) JZinc 50 0.00351 B ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-9

Page 1 of 6

7/25/2014

Page 61: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 9Comparison of Groundwater Analytical Results to MCP UCLs for Groundwater

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: MCP UCL GMA4-6 H78B-15Parameter Date Collected: for GroundWater 04/09/14 04/10/14Volatile Organics2-Chloroethylvinylether Not Listed R [ND(0.025)] ND(0.025)Acetone 100 ND(0.025) [ND(0.025)] ND(0.025)Chlorobenzene 10 ND(0.0010) [ND(0.0010)] ND(0.0010)Chloroform 100 ND(0.0010) [ND(0.0010)] ND(0.0010)Tetrachloroethene 100 ND(0.0010) [ND(0.0010)] ND(0.0010)Trichloroethene 50 ND(0.0010) [ND(0.0010)] ND(0.0010)PCBs-FilteredAroclor-1248 Not Listed ND(0.000068) [ND(0.000070)] ND(0.000066)Total PCBs 0.1 ND(0.000068) [ND(0.000070)] ND(0.000066)Semivolatile OrganicsNone Detected -- -- --Furans2,3,7,8-TCDF Not Listed ND(0.00000000065) [ND(0.00000000054)] ND(0.00000000047)TCDFs (total) Not Listed ND(0.00000000065) [ND(0.00000000054)] ND(0.00000000047)1,2,3,7,8-PeCDF Not Listed ND(0.00000000053) [ND(0.00000000051)] ND(0.00000000052)2,3,4,7,8-PeCDF Not Listed ND(0.00000000053) [ND(0.00000000051)] ND(0.00000000052)PeCDFs (total) Not Listed 0.0000000018 [ND(0.00000000051)] ND(0.00000000052)1,2,3,4,7,8-HxCDF Not Listed ND(0.00000000049) [ND(0.00000000053)] ND(0.00000000046)1,2,3,6,7,8-HxCDF Not Listed 0.00000000063 J [ND(0.00000000048)] ND(0.00000000044)1,2,3,7,8,9-HxCDF Not Listed ND(0.00000000071) [ND(0.00000000079)] ND(0.00000000067)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000053) [ND(0.00000000055)] ND(0.00000000050)HxCDFs (total) Not Listed ND(0.00000000054) [ND(0.00000000057)] ND(0.00000000051)1,2,3,4,6,7,8-HpCDF Not Listed ND(0.00000000054) [ND(0.00000000051)] ND(0.00000000097)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.00000000077) [ND(0.00000000093)] ND(0.00000000085)HpCDFs (total) Not Listed ND(0.00000000054) [ND(0.00000000068)] ND(0.00000000097)OCDF Not Listed ND(0.0000000017) [ND(0.0000000015)] ND(0.0000000014)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000080) [ND(0.00000000083)] ND(0.00000000066)TCDDs (total) Not Listed ND(0.00000000080) [0.0000000015] ND(0.00000000066)1,2,3,7,8-PeCDD Not Listed ND(0.00000000079) [ND(0.00000000091)] ND(0.00000000066)PeCDDs (total) Not Listed ND(0.00000000079) [ND(0.00000000091)] ND(0.00000000066)1,2,3,4,7,8-HxCDD Not Listed ND(0.00000000080) [ND(0.00000000075)] ND(0.00000000067)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000078) [ND(0.00000000080)] ND(0.00000000065)1,2,3,7,8,9-HxCDD Not Listed 0.00000000098 J [0.0000000015 J] ND(0.00000000070)HxCDDs (total) Not Listed ND(0.00000000082) [0.0000000015] ND(0.00000000067)1,2,3,4,6,7,8-HpCDD Not Listed ND(0.0000000013) [ND(0.0000000012)] ND(0.00000000087)HpCDDs (total) Not Listed ND(0.0000000012) [ND(0.0000000012)] ND(0.00000000087)OCDD Not Listed ND(0.0000000049) [ND(0.0000000031)] ND(0.0000000035)Total TEQs (1998 WHO TEFs) 0.0004 0.0000000013 [0.0000000014] 0.0000000010Inorganics-UnfilteredSulfide Not Listed ND(2.00) [ND(2.00)] ND(2.00)Inorganics-FilteredBarium 100 ND(0.100) [ND(0.100)] ND(0.100)Beryllium 2 ND(0.0100) J [0.0403 J] ND(0.0100) JCadmium 0.05 ND(0.000500) [ND(0.000500)] ND(0.000500) JChromium 3 ND(0.0100) J [ND(0.0100) J] 0.00127 BLead 0.15 ND(0.0100) J [ND(0.0100) J] 0.00826 JNickel 2 ND(0.0100) J [ND(0.0100) J] ND(0.0100)Selenium 1 ND(0.0200) J [ND(0.0200) J] ND(0.0200) JThallium 30 0.0105 J [ND(0.0100) J] ND(0.0100) JZinc 50 ND(0.0200) [0.00489 B] ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-9

Page 2 of 6

7/25/2014

Page 62: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 9Comparison of Groundwater Analytical Results to MCP UCLs for Groundwater

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: MCP UCL OPCA-MW-1RR OPCA-MW-2R OPCA-MW-3Parameter Date Collected: for GroundWater 04/10/14 04/08/14 04/08/14Volatile Organics2-Chloroethylvinylether Not Listed ND(1.0) ND(0.025) ND(0.025)Acetone 100 ND(1.0) ND(0.025) ND(0.025)Chlorobenzene 10 ND(0.040) ND(0.0010) ND(0.0010)Chloroform 100 0.0088 J ND(0.0010) ND(0.0010)Tetrachloroethene 100 2.4 ND(0.0010) ND(0.0010)Trichloroethene 50 0.027 J ND(0.0010) ND(0.0010)PCBs-FilteredAroclor-1248 Not Listed ND(0.000067) ND(0.000070) ND(0.000066)Total PCBs 0.1 ND(0.000067) ND(0.000070) ND(0.000066)Semivolatile OrganicsNone Detected -- -- -- --Furans2,3,7,8-TCDF Not Listed ND(0.00000000052) ND(0.00000000084) ND(0.00000000095)TCDFs (total) Not Listed 0.0000000054 ND(0.00000000084) ND(0.00000000095)1,2,3,7,8-PeCDF Not Listed ND(0.00000000046) ND(0.00000000087) ND(0.00000000077)2,3,4,7,8-PeCDF Not Listed ND(0.00000000047) ND(0.00000000081) ND(0.00000000080)PeCDFs (total) Not Listed ND(0.00000000046) ND(0.00000000084) ND(0.00000000078)1,2,3,4,7,8-HxCDF Not Listed ND(0.00000000052) ND(0.00000000086) ND(0.00000000086)1,2,3,6,7,8-HxCDF Not Listed ND(0.00000000046) ND(0.00000000075) ND(0.00000000081)1,2,3,7,8,9-HxCDF Not Listed ND(0.00000000073) ND(0.0000000012) ND(0.0000000012)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000054) ND(0.00000000086) ND(0.00000000086)HxCDFs (total) Not Listed ND(0.00000000055) ND(0.00000000089) ND(0.00000000091)1,2,3,4,6,7,8-HpCDF Not Listed ND(0.00000000049) ND(0.00000000080) ND(0.00000000086)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.00000000090) ND(0.0000000014) ND(0.0000000015)HpCDFs (total) Not Listed ND(0.00000000066) ND(0.0000000011) ND(0.0000000011)OCDF Not Listed ND(0.0000000018) ND(0.0000000025) ND(0.0000000022)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000066) ND(0.0000000014) ND(0.0000000019)TCDDs (total) Not Listed ND(0.00000000066) ND(0.0000000014) ND(0.0000000019)1,2,3,7,8-PeCDD Not Listed ND(0.00000000084) ND(0.0000000012) ND(0.0000000014)PeCDDs (total) Not Listed ND(0.00000000084) ND(0.0000000012) ND(0.0000000014)1,2,3,4,7,8-HxCDD Not Listed ND(0.00000000073) ND(0.0000000012) ND(0.0000000010)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000072) ND(0.0000000013) ND(0.00000000098)1,2,3,7,8,9-HxCDD Not Listed ND(0.00000000077) ND(0.0000000014) ND(0.0000000011)HxCDDs (total) Not Listed ND(0.00000000073) ND(0.0000000013) ND(0.0000000010)1,2,3,4,6,7,8-HpCDD Not Listed ND(0.00000000075) ND(0.0000000014) ND(0.0000000012)HpCDDs (total) Not Listed ND(0.00000000075) ND(0.0000000014) ND(0.0000000012)OCDD Not Listed ND(0.0000000049) ND(0.0000000060) ND(0.0000000040)Total TEQs (1998 WHO TEFs) 0.0004 0.0000000011 0.0000000019 0.0000000022Inorganics-UnfilteredSulfide Not Listed ND(2.00) 0.660 B ND(2.00)Inorganics-FilteredBarium 100 0.0401 B ND(0.100) ND(0.100)Beryllium 2 ND(0.0100) J ND(0.0100) J ND(0.0100) JCadmium 0.05 0.0273 J ND(0.000500) 0.000260 BChromium 3 0.00209 B ND(0.0100) J ND(0.0100) JLead 0.15 0.00982 J ND(0.0100) J ND(0.0100) JNickel 2 ND(0.0100) ND(0.0100) J 0.00357 JSelenium 1 ND(0.0200) J 0.00876 J ND(0.0200) JThallium 30 0.0102 J 0.0107 J ND(0.0100) JZinc 50 ND(0.0200) ND(0.0200) 0.00959 B

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-9

Page 3 of 6

7/25/2014

Page 63: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 9Comparison of Groundwater Analytical Results to MCP UCLs for Groundwater

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: MCP UCL OPCA-MW-4 OPCA-MW-5R OPCA-MW-6Parameter Date Collected: for GroundWater 4/8-5/9/14 4/8-5/9/14 04/10/14Volatile Organics2-Chloroethylvinylether Not Listed ND(0.025) J ND(0.025) J ND(0.025)Acetone 100 ND(0.046) J ND(0.038) J ND(0.025)Chlorobenzene 10 ND(0.0010) J 0.00036 J ND(0.0010)Chloroform 100 ND(0.0010) J ND(0.0010) J ND(0.0010)Tetrachloroethene 100 ND(0.0010) J ND(0.0010) J ND(0.0010)Trichloroethene 50 0.0012 J ND(0.0010) J ND(0.0010)PCBs-FilteredAroclor-1248 Not Listed 0.00031 ND(0.000074) ND(0.000066)Total PCBs 0.1 0.00031 ND(0.000074) ND(0.000066)Semivolatile OrganicsNone Detected -- -- -- --Furans2,3,7,8-TCDF Not Listed 0.0000000023 J ND(0.00000000073) 0.0000000013 JTCDFs (total) Not Listed 0.000000024 J 0.0000000035 J 0.00000000131,2,3,7,8-PeCDF Not Listed ND(0.00000000073) ND(0.00000000067) ND(0.00000000056)2,3,4,7,8-PeCDF Not Listed ND(0.00000000075) 0.00000000092 J ND(0.00000000054)PeCDFs (total) Not Listed 0.000000071 J 0.000000015 J ND(0.00000000055)1,2,3,4,7,8-HxCDF Not Listed 0.0000000011 J 0.0000000023 J ND(0.00000000045)1,2,3,6,7,8-HxCDF Not Listed ND(0.00000000070) 0.0000000016 J ND(0.00000000042)1,2,3,7,8,9-HxCDF Not Listed ND(0.0000000010) ND(0.00000000098) ND(0.00000000070)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000077) 0.0000000019 J ND(0.00000000051)HxCDFs (total) Not Listed 0.000000014 0.000000018 J 0.000000000671,2,3,4,6,7,8-HpCDF Not Listed ND(0.00000000074) 0.0000000044 J ND(0.00000000090)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.0000000010) 0.0000000013 J ND(0.0000000011)HpCDFs (total) Not Listed ND(0.00000000074) 0.0000000089 J ND(0.00000000090)OCDF Not Listed ND(0.0000000024) 0.0000000041 J ND(0.0000000019)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000086) ND(0.0000000011) ND(0.00000000060)TCDDs (total) Not Listed ND(0.00000000086) 0.0000000016 ND(0.00000000060)1,2,3,7,8-PeCDD Not Listed ND(0.0000000011) ND(0.0000000012) ND(0.00000000065)PeCDDs (total) Not Listed ND(0.0000000011) ND(0.0000000012) ND(0.00000000065)1,2,3,4,7,8-HxCDD Not Listed ND(0.00000000095) ND(0.00000000080) ND(0.00000000075)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000098) ND(0.00000000088) ND(0.00000000073)1,2,3,7,8,9-HxCDD Not Listed ND(0.0000000011) 0.0000000011 J ND(0.00000000079)HxCDDs (total) Not Listed ND(0.00000000099) 0.0000000049 J ND(0.00000000076)1,2,3,4,6,7,8-HpCDD Not Listed ND(0.0000000012) ND(0.0000000044) ND(0.0000000010)HpCDDs (total) Not Listed ND(0.0000000012) 0.0000000053 J ND(0.0000000010)OCDD Not Listed ND(0.0000000063) 0.000000024 J ND(0.0000000067)Total TEQs (1998 WHO TEFs) 0.0004 0.0000000018 0.0000000026 0.0000000011Inorganics-UnfilteredSulfide Not Listed ND(2.00) ND(2.00) ND(2.00)Inorganics-FilteredBarium 100 ND(0.100) ND(0.100) ND(0.100)Beryllium 2 ND(0.0100) J ND(0.0100) J ND(0.0100) JCadmium 0.05 0.0000700 B 0.00176 ND(0.000500) JChromium 3 ND(0.0100) J ND(0.0100) J ND(0.0100)Lead 0.15 ND(0.0100) J ND(0.0100) J ND(0.0100) JNickel 2 ND(0.0100) J ND(0.0100) J ND(0.0100)Selenium 1 ND(0.0200) J ND(0.0200) J ND(0.0200) JThallium 30 0.00805 J ND(0.0100) J ND(0.0100) JZinc 50 0.0177 B 0.263 ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-9

Page 4 of 6

7/25/2014

Page 64: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 9Comparison of Groundwater Analytical Results to MCP UCLs for Groundwater

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: MCP UCL OPCA-MW-7 OPCA-MW-8RParameter Date Collected: for GroundWater 4/8-5/9/14 4/9-5/9/14Volatile Organics2-Chloroethylvinylether Not Listed ND(0.025) J ND(0.025) JAcetone 100 ND(0.047) J ND(0.039) JChlorobenzene 10 ND(0.0010) J ND(0.0010) JChloroform 100 ND(0.0010) J ND(0.0010) JTetrachloroethene 100 ND(0.0010) J ND(0.0010) JTrichloroethene 50 ND(0.0010) J ND(0.0010) JPCBs-FilteredAroclor-1248 Not Listed ND(0.000075) ND(0.000066)Total PCBs 0.1 ND(0.000075) ND(0.000066)Semivolatile OrganicsNone Detected -- -- --Furans2,3,7,8-TCDF Not Listed ND(0.00000000065) ND(0.00000000045)TCDFs (total) Not Listed ND(0.00000000065) ND(0.00000000045)1,2,3,7,8-PeCDF Not Listed ND(0.00000000059) ND(0.00000000044)2,3,4,7,8-PeCDF Not Listed ND(0.00000000061) ND(0.00000000042)PeCDFs (total) Not Listed 0.00000000092 ND(0.00000000043)1,2,3,4,7,8-HxCDF Not Listed 0.00000000054 J ND(0.00000000046)1,2,3,6,7,8-HxCDF Not Listed ND(0.00000000047) ND(0.00000000044)1,2,3,7,8,9-HxCDF Not Listed ND(0.00000000070) ND(0.00000000064)2,3,4,6,7,8-HxCDF Not Listed ND(0.00000000050) ND(0.00000000047)HxCDFs (total) Not Listed ND(0.00000000053) ND(0.00000000049)1,2,3,4,6,7,8-HpCDF Not Listed ND(0.0000000014) ND(0.00000000046)1,2,3,4,7,8,9-HpCDF Not Listed ND(0.00000000089) ND(0.00000000085)HpCDFs (total) Not Listed ND(0.0000000014) ND(0.00000000046)OCDF Not Listed 0.0000000020 J ND(0.0000000014)Dioxins2,3,7,8-TCDD Not Listed ND(0.00000000096) ND(0.00000000075)TCDDs (total) Not Listed 0.0000000017 ND(0.00000000075)1,2,3,7,8-PeCDD Not Listed ND(0.00000000087) ND(0.00000000067)PeCDDs (total) Not Listed ND(0.00000000087) 0.000000000751,2,3,4,7,8-HxCDD Not Listed ND(0.00000000071) ND(0.00000000050)1,2,3,6,7,8-HxCDD Not Listed ND(0.00000000073) ND(0.00000000051)1,2,3,7,8,9-HxCDD Not Listed ND(0.00000000077) 0.0000000013 JHxCDDs (total) Not Listed ND(0.00000000073) 0.0000000027 J1,2,3,4,6,7,8-HpCDD Not Listed ND(0.0000000013) ND(0.0000000017)HpCDDs (total) Not Listed 0.0000000016 J ND(0.0000000017)OCDD Not Listed ND(0.0000000085) ND(0.000000011)Total TEQs (1998 WHO TEFs) 0.0004 0.0000000014 0.0000000011Inorganics-UnfilteredSulfide Not Listed ND(2.00) ND(2.00)Inorganics-FilteredBarium 100 0.0540 B 0.0679 BBeryllium 2 0.00872 J ND(0.0100) JCadmium 0.05 0.00208 ND(0.000500)Chromium 3 ND(0.0100) J ND(0.0100) JLead 0.15 ND(0.0100) J ND(0.0100) JNickel 2 ND(0.0100) J 0.00346 JSelenium 1 0.00856 J ND(0.0200) JThallium 30 ND(0.0100) J 0.00992 JZinc 50 0.0181 B ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-9

Page 5 of 6

7/25/2014

Page 65: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 9Comparison of Groundwater Analytical Results to MCP UCLs for Groundwater

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

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

Appendix IX+3 constituents.2.   Samples have been validated as per Field Sampling Plan/Quality Assurance Project Plan (FSP/QAPP), General

Electric Company, Pittsfield, Massachusetts, ARCADIS (revised on July 2 , 2013 and approved by EPA on July 23, 2013).3. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.4. Total 2,3,7,8-TCDD toxicity equivalents (TEQs) were calculated using Toxicity Equivalency Factors (TEFs) derived by

the World Health Organization (WHO) and published by Van den Berg et al. in Environmental Health Perspectives 106(2), December 1998.

5. Field duplicate sample results are presented in brackets.6. With the exception of dioxin/furans only those constituents detected in one or more samples are summarized.7. Sulfide is the only inorganic constituent which was submitted for analysis using an unfiltered sample.8. -- Indicates that all constituents for the parameter group were not detected.

Data Qualifiers:

Organics (volatiles, PCBs, semivolatiles, dioxin/furans)J - Indicates that the associated numerical value is an estimated concentration.R - Data was rejected due to a deficiency in the data generation process.

InorganicsB - Indicates an estimated value between the method detection limit (MDL) and reporting limit (RL).J - Indicates that the associated numerical value is an estimated concentration.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table-9 Notes

Page 6 of 6

7/25/2014

Page 66: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table 10Summary of Historical Groundwater Analytical Results For Constituents Subject to Reductions in MCP Method 1 Standards or UCLs for Groundwater

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Detection Minimum Maximum Arithmetic

Former New Frequency Detect Detect Average

Standard or UCL Standard or UCL78-1 Methylene Chloride GW-2 10 2 1/30 0.005 0.005 0.0108

Methylene Chloride GW-2 10 2 1/29 0.007 0.007 0.00252Naphthalene GW-2 1 0.7 1/28 0.0016 0.0016 0.00367

GMA4-6 --- --- --- --- ---H78B-15 Trichloroethene GW-2 0.03 0.005 2/29 0.00023 0.00065 0.00139

Methylene Chloride GW-2 10 2 1/12 0.39 0.39 0.492Trichloroethene GW-2 0.03 0.005 8/12 0.016 0.042 0.0928Xylenes (total) GW-2 9 3 1/12 0.015 0.015 0.1361,2,4-Trichlorobenzene GW-2 2 0.2 1/27 0.0016 0.0016 0.00392Trichloroethene GW-2 0.03 0.005 1/27 0.0011 0.0011 0.00141Xylenes (total) GW-2 9 3 1/27 0.00025 0.00025 0.00249

OPCA-MW-3 Methylene Chloride GW-2 10 2 1/28 0.00035 0.00035 0.002321,2,4-Trichlorobenzene GW-2 2 0.2 6/28 0.0006 0.016 0.004571,4-Dichlorobenzene GW-2 0.2 0.06 4/28 0.00028 0.0032 0.00379Benzene GW-2 2 1 3/28 0.00013 0.00036 0.00131Methylene Chloride GW-2 10 2 1/28 0.00086 0.00086 0.00236Naphthalene GW-2 1 0.7 1/28 0.00023 0.00023 0.00377Trichloroethene GW-2 0.03 0.005 22/28 0.00094 0.0021 0.00166Xylenes (total) GW-2 9 3 2/28 0.00025 0.0022 0.002461,4-Dichlorobenzene GW-2 0.2 0.06 3/28 0.00055 0.0018 0.00375Benzene GW-2 2 1 6/28 0.00012 0.00042 0.00128Methylene Chloride GW-2 10 2 1/28 0.00022 0.00022 0.00231Naphthalene GW-2 1 0.7 2/28 0.0083 0.062 0.00596

OPCA‐MW‐6 --- --- --- --- ---Benzene GW-2 2 1 1/28 0.00052 0.00052 0.00127Trichloroethene GW-2 0.03 0.005 1/28 0.0011 0.0011 0.00131Xylenes (total) GW-2 9 3 1/28 0.0021 0.0021 0.00231

OPCA‐MW‐8/ 

OPCA‐MW‐8RTrichloroethene GW-2 0.03 0.005 1/27 0.0011 0.0011 0.00141

Notes:1. The MCP Method 1 GW-2 and GW-3 Standards and MCP UCLs for Groundwater for certain constituents were revised on June 20, 2014.2. Constituents where the GW-2 or GW-3 Standards or UCL for Groundwater were revised downward that were also detected in the listed monitoring wells are summarized in this table.3. --- indicates not applicable.

Method 1 Standard or UCL

Standard or UCLLocation ID: Constituent2

78-6/78-6R

No constituents subject to modification in standards detected

No constituents subject to modification in standards detected

OPCA-MW-4

OPCA‐MW‐5/ 

OPCA‐MW‐5R

OPCA‐MW‐7

OPCA-MW-1RR

OPCA-MW-2/ OPCA-MW-2R

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Tbl10.xlsx

Page 1 of 1

7/25/2014

Page 67: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Figures

Page 68: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

ON-PLANT CONSOLIDATION AREAS

SITE PLAN

IM

AG

ES

:

31202X

01.jpg

XR

EF

S:

31202X

02

31202X

00

CIT

Y: S

yracuse D

IV

/G

RO

UP

: E

nvC

AD

D

B: L. F

OR

AK

ER

S

. B

ELL, A

.S

chilling LD

: A

.S

chilling P

IC

: P

. K

EA

NE

Y P

M: W

. R

AN

KIN

T

M: P

. B

AT

TE

N LY

R: O

N=

*; O

FF

=*R

EF

*

G:\G

E\E

NV

CA

D\S

YR

AC

US

E\A

CT

\C

\B

0031202\0001\00002\D

WG

\O

PC

A\31202B

01.dw

g LA

YO

UT

: 1

S

AV

ED

: 2/17/2014 4:48 P

M A

CA

DV

ER

: 18.1S

(LM

S T

EC

H) P

AG

ES

ET

UP

: ---- P

LO

TS

TY

LE

TA

BLE

: P

LT

FU

LL.C

TB

P

LO

TT

ED

: 7/24/2014 3:37 P

M B

Y: S

CH

ILLIN

G, A

DA

M

SITE LOCATION

SITE LOCATION MAP

GENERAL ELECTRIC COMPANY

PITTSFIELD, MASSACHUSETTS

OPCA POST-CLOSURE GROUNDWATER

MONITORING PROGRAM

FIGURE

IM

AG

ES

:

31202X

01.jpg

XR

EF

S:

31202X

02

31202X

00

PR

OJE

CT

NA

ME

: ----

1

z "' ~I ~I, <, ['11

'

I '

I '

I I

I '

L

PARCEL EXTENDS TO NORTHWEST

\ __ ---4"""--\

i i D --+,i===t=;l

oi ol Q!

!

0/ I i i i l

HILL 78 OPCA

I !

PARCEL EXTENDS TO

BUILDING 71 OPCA

- ..... ... I I I I

PARKING lOT FOR flUILDINGS OP-1 AND

OP-2 IN Tf.IE GENERAL DYNA~ICS FACILITY

LEGEND:

EXISTING BUILDING OR STRUCTURE

EXISTING ROADS

ACCESS ROAD

NON-TSCA/NON-RCRA AREA

TSCA/RCRA AREA

LIMIT OF CONSOLIDATED MATERIALS

~~~~ EXISTING SECURITY FENCE

- - - BOUNDARY OF BUILDING 71 AND HILL 78 ON-PLANT CONSOLIDATION AREAS REMOVAL ACTION AREAS

- - - BOUNDARY OF HILL 78 AREA - REMAINDER REMOVAL ACTION AREA

K11-7-2 TAX PARCEL ID

TAX PARCEL BOUNDARY

NOTES:

1. MAPPING IS BASED ON AERIAL PHOTOGRAPHS AND PHOTOGRAMMETRIC MAPPING BY LOCKWOOD MAPPING, INC. -FLOWN IN APRIL 1990: DATA PROVIDED BY GENERAL ELECTRIC COMPANY: AND BLASLAND, BOUCK & LEE, INC. (BBL) CONSTRUCTION PLANS, AND ON OBSERVATIONS DURING A SITE VISIT BY BBL PERSONNEL ON DECEMBER 3, 1997. SE\\£R RELOCATION FEATURES ARE BASED ON FIELD SURVEY INFORMATION OBTAINED BY SK DESIGN GROUP, INC. ON APRIL 15, 2009.

2. SITE BOUNDARIES ARE APPROXIMATE.

3. NOT ALL PHYSICAL FEATURES SIHOWN.

100' zoo·

GRAPHIC SCALE

~ARCADIS

Page 69: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

MONITORING WELL LOCATIONS

CIT

Y: S

YR

AC

US

E, N

Y G

RO

UP

: E

NV

CA

D D

B: R

.B

AS

SE

TT

, R

.B

AS

SE

TT

, A

.S

chilling LD

: A

.S

chilling P

M: C

. A

VE

RILL T

M: N

. S

MIT

H T

R: R

. B

AT

ES

LY

R:O

N=

*;O

FF

=R

EF

, (F

RZ

)

G:\G

E\E

NV

CA

D\S

YR

AC

US

E\A

CT

\C

\B

0031202\0001\00002\D

WG

\O

PC

A\31202B

02.D

WG

LA

YO

UT

: 2

S

AV

ED

: 2/19/2014 4:37 P

M A

CA

DV

ER

: 18.1S

(LM

S T

EC

H) P

AG

ES

ET

UP

: ---- P

LO

TS

TY

LE

TA

BLE

: P

LT

FU

LL.C

TB

P

LO

TT

ED

: 7/24/2014 3:37 P

M B

Y: S

CH

ILLIN

G, A

DA

M

GENERAL ELECTRIC COMPANY

PITTSFIELD, MASSACHUSETTS

OPCA POST-CLOSURE GROUNDWATER

MONITORING PROGRAM

FIGURE

IM

AG

ES

:X

RE

FS

:

31202X

40

31202X

00

PR

OJE

CT

NA

ME

: ----

2

ES1-~

~ALLENDALt SCI-+!JQ

PROPER'N \..

i ' : L-­L----

HILL 78 CONSOI.HJATlON AR[A

Bl..IILOING 71 CDN SOI.Hl A 'fl ON AREA

~788-15

+PH

<> 0

LEGEND:

ROUND WATER APPROXIMATE G EA 4 BOUNDAR Y MANAGEMENT AR

DING 7 1 AND BOUNDARY O~L~~Ii CONSOliDATION HILL 78 ON- L ACTION AREAS AREAS REMOVA

EXISTING MONITORING WELL

EXISTING WELL/PIE;OMEITR MONITORED BY EP

TER MONITORING OPCA GROU N DWA WELL TO BE PROGRAM SAMPLI~GNNUALL y FOR MONITORED SEM~~EVATION AND GROUNDWATER NAPL PRESENCE

RING WELL TO AODI110NAL MgN~~~I-ANNUALL Y

BE M;;gUONR~WATER ELEVATION

~~ NAPL PRESENCE

GW-2 COMPLI ANCE WELL

NOT ES: NG FILE (PLANT3.CAD) :;;p PHASE

I. MAP PING BASED o:NOA ADD ITIONAL INFOR~~~IA FACILITY INVESTIGATIO UTOCAO DRAW 0\J FROM THE N

PRO, DEO BY GE NO PROPOSAL FOR 1996) AS WELL AS II SCOPE OF WORK ~G INEERS , INC., FEBRUA~TAJNED BY HILL

(O'BRIEN & T;~R~T~ SURVEY INFORMAT:~EK OF MAY 29, 199:);000 SUPPLEMEN LANNERS & ARCHITEC~~T DIGITIZED FROM MARC ~ ENGINEERS, P F THE PARKING LOCATIONS EAST A~E APPROXIMATE. AIR PHOTO AND

2. ALL LOCATIONS ARE APPROXIM ATE.

150'

GRAPHIC SCALE

300'

~ARCADIS

Page 70: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

1000

1

0

1

0

1020

1

0

2

2

1

0

0

6

1004

1

0

0

2

1

0

0

0

1

0

1

0

1

0

0

0

9

9

0

988

986

9

8

6

982

9

8

0

988

9

9

0

9

9

2

9

9

4

996

998

9

9

6

9

9

4

9

9

2

9

9

0

9

8

8

9

9

2

9

9

0

9

8

8

1

0

2

0

1

0

1

8

1

0

1

4

1

0

1

2

1

0

1

4

1

0

1

6

1

0

1

8

9

9

4

9

9

6

9

9

8

1002

1

0

0

4

1

0

0

6

1

0

0

8

1022

1024

1012

1000

9

9

8

9

8

0

1

0

1

2

1

0

0

8

1

0

1

4

1016

PZ-1

GMA2-SG-1

PZ-1

(1001.97)

PZ-2

(1006.36)

PZ-3

(1009.82)

PZ-4

(1007.73)

SCH-1

(1013.39)

060B-R

(987.89)

SCH-4

78-5R

H78B-13R

(983.32)

GMA4-7S

(985.04)

GMA4-7D

GMA4-8

(994.85)

GMA4-9

(992.80)

GMA4-2

(993.85)

GMA4-4

(987.71)

RF-15

(998.41)

GMA4-1

(989.11)

GMA2-1

GMA2-2

GMA2-3

GMA2-6

GMA2-7

GMA2-10

GMA4-5

(982.42)

OJ-MW-2R

OJ-MW-1R

ES1-05

(984.09)

78-1

(1017.87)

78-2

(1024.65)

GMA4-6

(999.77)

NY-2

(980.13)

NY-3

(990.23)

NY-4

(1017.32)

OPCA-MW-7

(1013.36)

RF-14

(993.28)

78-3

(990.52)

78-4

H78B-15

(998.62)

H78B-16

(987.11)

OPCA-MW-2R

(995.74)

OPCA-MW-3

(993.71)

OPCA-MW-4

(1006.22)

OPCA-MW-5R

(1005.47)

OPCA-MW-6

(1007.25)

ES1-20

(987.86)

J-1R

H78B-17R

(987.32)

OPCA-MW-8R

(1015.90)

UB-MW-6

(1001.96)

GMA4-3

(987.16)

UB-MW-5

(993.39)

OPCA-MW-1RR

(999.42)

OJ-MW-3

COMM-MW-6

GMA1-18

J-1R

GMA4-3

(986.03)

78-6R

(1004.74)

GENERAL ELECTRIC COMPANY

PITTSFIELD, MASSACHUSETTS

OPCA POST-CLOSURE GROUNDWATER

MONITORING PROGRAM

FIGURE

IM

AG

ES

:X

RE

FS

:

20187X

07

31202X

00

PR

OJE

CT

NA

ME

: ----

3

WATER TABLE CONTOUR MAP -

SPRING 2014

3

CIT

Y: S

yracuse G

RO

UP

: E

nvC

AD

D

B: A

.S

chilling E

.K

RA

HM

ER

A

.S

chilling LD

: A

.S

chilling P

M: C

.A

verill T

M: N

.S

mith LY

R:O

N=

*;O

FF

=R

EF

, (F

RZ

)

G:\G

E\E

NV

CA

D\S

YR

AC

US

E\A

CT

\C

\B

0031202\0001\00002\D

WG

\O

PC

A\31202W

01.D

WG

LA

YO

UT

: 3

S

AV

ED

: 7/25/2014 2:33 P

M A

CA

DV

ER

: 18.1S

(LM

S T

EC

H) P

AG

ES

ET

UP

: ---- P

LO

TS

TY

LE

TA

BLE

: P

LT

FU

LL.C

TB

P

LO

TT

ED

: 7/25/2014 2:33 P

M B

Y: S

CH

ILLIN

G, A

DA

M

Page 71: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Appendices

Page 72: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Appendix A

Groundwater Elevation Monitoring, Sampling, and Well Maintenance Data – Spring 2014

Page 73: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Tables

Page 74: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table A-1

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts

Measuring Depth Groundwater

Well Point Elevation Date to Water Elevation

Name (feet AMSL) (ft BMP) (feet AMSL)

78-1 1,026.32 4/9/2014 7.99 1,018.33

78-1 1,026.32 4/23/2014 8.45 1,017.87

78-6R 1,011.70 4/9/2014 6.35 1,005.35

78-6R 1,011.70 4/11/2014 6.95 1,004.75

78-6R 1,011.70 4/11/2014 6.95 1,004.75

78-6R 1,011.70 4/23/2014 6.96 1,004.74

78-6R 1,011.70 4/25/2014 7.60 1,004.10

GMA4-6 1,009.13 4/9/2014 9.10 1,000.03

GMA4-6 1,009.13 4/23/2014 9.36 999.77

H78B-15 1,012.68 4/10/2014 13.99 998.69

H78B-15 1,012.68 4/23/2014 14.06 998.62

OPCA-MW-1RR 1,016.42 4/10/2014 16.97 999.45

OPCA-MW-1RR 1,016.42 4/23/2014 17.00 999.42

OPCA-MW-2R 1,018.84 4/8/2014 23.05 995.79

OPCA-MW-2R 1,018.84 4/23/2014 23.10 995.74

OPCA-MW-3 1,014.83 4/8/2014 25.14 989.69

OPCA-MW-3 1,014.83 4/23/2014 21.12 993.71

OPCA-MW-4 1,018.67 4/8/2014 18.18 1,000.49

OPCA-MW-4 1,018.67 4/23/2014 12.45 1,006.22

OPCA-MW-4 1,018.67 5/9/2014 11.23 1,007.44

OPCA-MW-5R 1,016.29 4/8/2014 11.88 1,004.41

OPCA-MW-5R 1,016.29 4/23/2014 10.82 1,005.47

OPCA-MW-5R 1,016.29 5/9/2014 10.64 1,005.65

OPCA-MW-6 1,022.24 4/10/2014 14.66 1,007.58

OPCA-MW-6 1,022.24 4/23/2014 14.99 1,007.25

OPCA-MW-7 1,026.54 4/8/2014 15.58 1,010.96

OPCA-MW-7 1,026.54 4/23/2014 13.18 1,013.36

OPCA-MW-7 1,026.54 5/9/2014 13.16 1,013.38

OPCA-MW-8R 1,030.70 4/9/2014 15.76 1,014.94

OPCA-MW-8R 1,030.70 4/23/2014 14.80 1,015.90

OPCA-MW-8R 1,030.70 5/9/2014 13.92 1,016.78

Spring 2014 Groundwater Elevation Data

OPCA Sampling Wells

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxA_TblsA1-A3.xlsx - Table A-1

Page 1 of 2

7/25/2014

Page 75: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table A-1

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts

Measuring Depth Groundwater

Well Point Elevation Date to Water Elevation

Name (feet AMSL) (ft BMP) (feet AMSL)

Spring 2014 Groundwater Elevation Data

Additional Wells Monitored Under Post-Closure Program for the OPCAs

78-2 1,033.94 4/23/2014 9.29 1,024.65

78-3 1,006.87 4/23/2014 16.35 990.52

GMA4-1 1,012.01 4/23/2014 22.95 989.06

GMA4-4 999.64 4/23/2014 11.93 987.71

GMA4-8 1,020.42 4/23/2014 25.57 994.85

GMA4-8 1,020.42 5/9/2014 25.49 994.93

GMA4-9 1,002.28 4/23/2014 9.48 992.80

GMA4-9 1,002.28 5/9/2014 9.51 992.77

H78B-13R 992.93 4/23/2014 9.61 983.32

H78B-17R 1,000.31 4/23/2014 12.99 987.32

NY-2 996.54 4/23/2014 16.41 980.13

NY-4 1,024.69 4/23/2014 7.37 1,017.32

UB-MW-6 1,020.12 4/23/2014 18.16 1,001.96

Notes:1. ft AMSL - feet Above Mean Sea Level.

2. ft BMP - feet Below Measuring Point.

3. Groundwater elevation measurements were collected during the spring 2014 monitoring event conducted on April 23, 2014 and during sampling or maintenance activities conducted at selected wells at other times in spring 2014.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxA_TblsA1-A3.xlsx - Table A-1

Page 2 of 2

7/25/2014

Page 76: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table A-2Spring 2014 Housatonic River Stage Information - Coltsville Station

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts

DateMaximum Discharge

(cfs)

Minimum Discharge

(cfs)Comments

4/7/2014 333 291 Groundwater Samples Collected

4/8/2014 528 306 Groundwater Samples Collected

4/9/2014 524 410 Groundwater Samples Collected

4/10/2014 414 333 Groundwater Samples Collected

4/11/2014 390 321 Well 78-6R Redeveloped

4/23/2014 118 111 Spring 2014 Monitoring Event

4/25/2014 99 87Sediment removed from well 78-6R; Passive Diffusion Bags Deployed in Wells OPCA-MW-4, OPCA-MW-5R,

OPCA-MW-7, and OPCA-MW-8R

5/9/2014 129 105

gMW-4, OPCA-MW-5R, OPCA-MW-7, and OPCA-MW-

8R

Notes:

1. cfs - cubic feet per second.2. Data obtained from the USGS Real-Time Water Data for Massachusetts Web Interface.3. Location: Lat 42°28'10", long 73°11'49", Berkshire County, Hydrologic Unit 01100005, on right bank 250 ft

downstream from Hubbard Avenue Bridge at Coltsville, 1.2 mi upstream from Unkamet Brook, and 2 mi

northeast of Pittsfield.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxA_TblsA1-A3.xlsx - Table A-2

Page 1 of 1

7/25/2014

Page 77: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table A-3OPCA Monitoring Well Maintenance Summary - Spring 2014

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts

Well Date(s) of As Built Spring 2014 Date(s) of Completed Completed MaintenanceName Assessment Depth Total Depth Maintenance

(ft BLS) (ft BLS)

OPCA Sampling Wells

78-1 4/23/2014 22.16 22.78 0.00 0.00 0.00 0 0.00

78-6R 4/23/2014 18.14 15.96Redevelop well and evaluate depth

discrepancy.0 0

Attempt sediment removal and well development.

1. 4/11/20142. 4/25/2014

1. Attempted redevelopment on 4/11/14 via waterra pump.

2. Attempted sediment removal on 4/25/2014 via air-lifting; final DTB is

18.42 ft BLS.GMA4-6 4/23/2014 13.01 13.25 0.00 0 0 1/0/1900 0.00 H78B-15 4/23/2014 16.50 15.81 0.00 0 0 1/0/1900 0.00

OPCA-MW-1RR 4/23/2014 28.3 28.45 Replace roadbox. Replace roadbox. 0.00 0.00 4/11/2014 Roadbox replaced.OPCA-MW-2R 4/23/2014 25.30 25.25 0.00 0.00 0.00 1/0/1900 0.00OPCA-MW-3 4/23/2014 27.97 28.01 0.00 0.00 0.00 1/0/1900 0.00OPCA-MW-4 4/23/2014 22.07 22.22 0 0.00 0.00 1/0/1900 0.00

OPCA-MW-5R 4/23/2014 21.22 22.07 Replace J-plug. 0.00 Replace J-plug. 0.00 4/25/2014 Replaced J-plug.OPCA-MW-6 4/23/2014 25.12 24.91 0.00 0.00 0.00 1/0/1900 0.00OPCA-MW-7 4/25/2014 24.36 24.47 Remove sediment from roadbox. 0.00 0.00 Remove sediment from roadbox. 4/25/2014 Removed sediment from roadbox.

OPCA-MW-8R 4/23/2014 25.60 25.01 Replace lock. 0.00 0.00 Replace lock. 4/23/2014 Replaced lock.

Additional Wells Monitored Under Post-Closure Program for the OPCAs

78-2 4/23/2014 20.54 21.25 0.00 0.00 0.00 0 0.00 78-3 4/23/2014 24.18 25.10 0.00 0.00 0.00 0 0.00

GMA4-1 4/23/2014 28.35 28.47Well ground surface and inner casing was lowered due to snow plows hitting

well; resurvey.0.00 Resurvey. 0.00 5/28/2014 Well resurveyed.

GMA4-4 4/23/2014 19.95 20.13 0.00 0.00 0.00 0 0.00 GMA4-8 4/23/2014 32.30 32.50 Roadbox needs to be replaced Replace roadbox. 0.00 0.00 4/11/2014 Roadbox replaced.GMA4-9 4/23/2014 15.50 15.86 0.00 0.00 0.00 0 0.00

H78B-13R 4/23/2014 20.00 20.34 0.00 0.00 0.00 1/0/1900 0.00 H78B-17R 4/23/2014 23.60 23.96 0.00 0.00 0.00 1/0/1900 0.00

NY-2 4/23/2014 24.50 23.82 0.00 0.00 0.00 1/0/1900 0.00 NY-4 4/23/2014 32.00 31.48 0.00 0.00 0.00 0 0.00

UB-MW-5 4/23/2014 17.42 14.47 Attempted sediment removal on

11/1/2013 via air lift; final DTB is 14.45 ft BLS. Hard bottom.

0 0.00 0.00 1/0/1900 0.00

UB-MW-6 4/23/2014 36.54 35.93 0 0.00 0.00 0 0.00

Notes1. BLS - Feet Below Land Surface 2. ft - Feet3. NA - Not Applicable

Comments Noted During Spring 2014

Areas Identified for Follow-up

Outer Casing/Manholew/ Bolts, Cover,Seal & Road box

Inner Casing Maintenance(Modify Riser, Replace

J-Plug, Re-survey Measuring Point)

General Maintenance (Replace Lock, Label

Well ID,Remove Sediment)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxA_TblsA1-A3.xlsx - Table A-3

Page 1 of 1

7/25/2014

Page 78: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Groundwater Sampling Records -Spring 2014

Page 79: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment D-2 PAGE_LoF_2 GROUNDWATER SAMPLING LOG

Well No. JB•I Key No. 2.&3'1 ~\"'" PID Background (ppm) __ N...._M..::..!.------

Site/GMA Name ~&ioao£"'--i:p:.Jttftsft.!.!>!i!J...ll!oe;:.~Jidut_...~./.!o!()~i8..llo$~;a__-----­sampling Personnel -~~~~i'!:.'J.ii~.LiahL:LLL-------------

We~~:: =.....::!il.l.lli~~~~~ ~~rif;_. ~l ""'_!...!='=========== Well Head space (ppm) _ _....N'"-XM_._ _____ _

WELL INFORMATION

Reference Point Marked? (£} N

Height of Reference Point 11~ Well Diameter If

Screen Interval Depth"-ri2.-:Zl,Cf0 Water Table Depth .qq

Well Depth 2.2,.~ Length of Water Column lt.t.51 Volume of Water in Well 9 • '08

Intake Depth of Pump/Tubing "'l 5 Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOG: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y @

Meas. From fAA !2

Meas. From _T'\..:....:..::C.:._ __ Meas. From __,1'\C,'-""'.._ __ Meas. From 'f"k:.

Meas. From _1\..l..!:C.~--

Required

3> )

2..> ( )

-hi~ ( )

Sample Time ~~~'20~~s;..a_ _____ _ Sample ID _'1.!.8!!!!:..."'..:1 ______ _

Duplicate ID -----------­

MS/MSD .::-=---------­Split Sample ID -=-=---------

Analvtical Parameters:

VOCs (Standard List)

VOCs (Expanded List)

SVOCs

PCBs (Unfiltered)

Collected

3> )

2..> )

2->

\~~.J [~ ~ i (~ ( ' ) ( 2..>

PCBs {Filtered)

Metalsllnorganics (Unfiltered)

Metalsllnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

(

<I <Z Additional well maintenance needed? vGJ (if yes, describe below) ( )

PCDDs/PCDFs

Pesticides/Herbicides

Natural Attenuation

Other (Specify) sv\.ficu.

EVACUATION INFORMATION

Pump Start Time OCt 11 Pump Stop Time t 2-05

Minutes of Pumping 16.8 Bailer ( Bladder Pump (

Submersible Pump ( ) Other/Specify ( ) Volume of Water Removed ... &l.S0 + s~p\d~S

Did Well Go Dry? Y N (specify)

~WI!d '..N'~ Pump Total Water Temp. pH Sp. Cond. Turbidity DO

Time

~~~~~ Gallons Level (Celsius) (mS/cm) (NTU) (mg/1)

Removed (ftTIC) [3%]' [0.1 units]' [3%]' [1 0% or 1 NTU]' [10% or 0.1 mg/1]'

oc:l2.0 100 NM • .... '.q NM • oc:t'2.S '/Slh6C ~up NM oqao qs <b.l'f "·3" 6.1~ o.""" I." :z.s'S Oct&~ qs "g.2.1 ~.zs s.as 0.6»"4 \·.~ 2.-12...

I Ol:ltk::> qs cg,u, ~.2...tf 5-t~ o.""s t.s l·"i1 oct45 qs '!>.1.«\ "·~ 6 .• , o.~'1 t.~ ,.qq. ot\50 qo "&.~ ~.at-1 6.tf., ().W,S l.1. ,.~t

ott~ qo 'V <&.?6 (p.42. G-1'7 o.~" L't ,.,~ . The stabilization cntena for each field parameter (three consecut1ve read1ngs collected at 3- to 5-m~nute intervals) is listed in each column heading. OBSERVATIONS/SAMPLING METHOD DEVIATiONS \prhAJ. ~ t b\a,ek, .c.toe£ , no odor Qeapump woWd n&J- tmi-tua ,,n .. enk..rriJJ>fC:.d bt.Jcw 96 ML/t\lun·

SAMPLE DESTINATION

Laboratory:-!>SES""""~-----------Delivered Via: _____________ _

Airbill#: _____________ _

G.\GE'\GE_Pittsfield_Generai\Reports and Presentations\FSP-QAPP 2013\06~13 Finai\Voiii\Appx 0\ Appx D - Atta D-2 .xis

ORP

<mr> [10 m'<'J'

. ... , ~ ,

'2aa.q 2.&4-~.a+

za.ta.a .ac.&~

2.25:'}

:z.n.a

Page 80: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2

GROUNDWATER SAMPLING LOG

Well No. __ J.._iJ.L-_\,___ _____ _ Site/GMA Name -"(:.,~E,"-;;;P\~~Illoii!L..U.C~ld~/u.O.t.JP~C..A!!O!!!!::l..;:aS"------Sampling Personnel -.!OII~;.:_·~f:}oot..~~~~u...LJI....-._;__ ______ _

Wea~::: =:::::i)itJfSf~.~~· Y ========= WELL INFORMATION· See Page 1

Pump Total Water Temp. pH Sp. Cond. Turbidity DO ORP Time ~-~~ Gallons Level (Celsius) (mS/cm) (NTU) (mg/1) (mV)

"'!t'mTlTT· Removed (ftTIC) [3%]" [0.1 units]* [3%]* [1 0% or 1 NTU]* [1 0% or 0.1 mg/1]* [10mV]*

1000 lOO ~M ~ ·"tt to.~ S.I'J o.""Gt; \.1 \tl~ .2.l2..q I DO$ 100 ~&.I-S ~.UJ. s.atp o.""~ \.~ l·'t5 ~."i'

\0\0 (00 c&.'+1 I.e,.'!;!. 6-lftl "·'*~ \.0 t.,Oj 'Zat·<t( \015 \00 <it. SO lD.s • £.2.2. 6.(,.,"' 1.2.. \.1 I 'Zl'3:1 \OW 100 ~.S2. (o.{DO G.23 o.~ \. \ ,_,'f' 'ZJ)t.1 l02.S. 100 'S.S~ (l) .s1 s.:z..afo o.~s o.q \.'1 e, 2J'2..1 l030 100 cz a:t4 I fD :1 t 5.2.(.. 0·~'1 1.3 LtA 2.0D.If

1~5 100 -s.t,p3 1,.,:14 S.2.1 o.""e e>,q 1.~5 :zos.~

lo'fO JOO <g.t.,S fo.,o s.zt o."~ o.q \.10 ?P2.b

IO~ IOD 'S~t.P~ lt:I.Cl3 5-~\ o.~"q '. ~ t.S" Z~X>S

~~ tOO ~:10 -z.oq s:~~ o.~"~ J.O \.,, lqt,,(,

\O.SS too ~:12 ;.u G.36 o.t..h~ o.~ 1.&.1 aqa." \\00 \00 ~1'!> '1·10 5.34 o.""" \.2.. 1.(.,2. ttf2.S llOS leD S."7" l.l(,., s.~ O·<N~ t.( ,.sq \'l(o,af 1110 /00 '!,. '1'i '1.10 5.3'f O.tpf.1t o. c:t 1.6~ IS!..b

tiiS ~ ~.t\1 7.00 5.!>2.. o.wn o." t.s~ t'!&..S \\'2.0 \Ol) G\.00 1-4l 53'6 0·"'"5 0.~ PH.- 1'17.3 U25 100 q,oo 1.52... S'·M. o.~ ••• I·Lf-3 ,..," .J Ll30 '"" '8.'1'1 1·4~ .5.4-1 tJ.t,'10 o.ct l-40 1'10." \\~ \CO ct.oo "1.41 6.!.14- O.fD1l \.~ 1.5\ '""V·l 1\"k'> ,00 q.oo ;:2,S 5.4-l 0.~"1~ r. 1 1.% l~t.~ 1145 IOO ' I/ q.oo 7·2.1 5.3~ O.f.t,11 I·Z. I.Gb l(.p".i I iii) 0 100 1\j>t.l-.6 q.oo ,.~ s.q.2. 0·~'10 o:~ t.l.\-5 )1,2." .zos ---II!! Ail 1:>1 l:u-tll AL

- .~1 ~ ... Sd IMDlL ~ bl~~~ !"---"

'

.. . *The stab11izalion cntena for each f1eld parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading .

OBSERVATIONS/SAMPLING METHOD DEVIATIONS s\t.u1«J, skp ~ad @.11 t:Z.. diA.f.. to Cd'\"\$tcJ\ \--d\'O,WdoWn. fiMl ~t CA-tAr; YlD M6Y'

G:\GE\GE_Pittsfield_Generai\Reports and Presentations\FSP...QAPP 2013\06-13 FinafNolll\Appx 0\ Appx D • Atta 0·2 .xis

Page 81: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

'L Attachment D-2 ,ACE _ O,_

\ ~_?,S

GROUNDWATERSAMPUNGLOG

Wall No. __ tn<ot---"'i'(,;..;.({~-----­Kay No. _ _,_/J..;.;I4;:..4;::.;..;(_1_--:-"'";":"'---­PID Background (ppm) __ -:I.J:=:M.:+-----Wtll Haadapact (ppm) __ .,:.fi.J~M....:.. ___ _

WELL INFORMATION

stta/GMA Nama _t:A~c=--P,~,=f-="S~{_k_ld __ 0_tt'-_4r ____ _ Sampling Personnel --~~~~f:~~~O~~"T""------------

Wea~~:: ===~~~~""'"""::~~·-z:o~..:;.1'w~:~.,:J~'~,-,:,:c~loJ:;;:J::..~.x-_-_-_-_-_-_-_-_-_-_-_-sample Time _ ___,,);::U::..~~D=----

Reference Point Marked? (!> N

Height of Reference Point __ T.!L..:....:1--1r-­WeU Oiameter--:::;-·_·.,~:-­

Screen Interval Depth 1 - J :X.,:,..

Meas. From ....:;...,M-4--__ _ Sampte ID --~..;...~:(.,~rz....;.... __ _

DuplicateiD ----------

4---. Water Table Oepthlt~ii·~·'L Well Oepth J 1·0)

length of Water Coiumn___;l;:O,.:.• '1..:....::'0'-­Volume of Water In Well_"+..::-:-.~-~ .... 1-

lntake Depth of Pump/Tubing __ cl:....._ __

Meas. From __ li7

1_v __ Meas. From ___,-..... r...:.I_,C,~_ Meas. From _T,_J!..:C....=.._ Required

( "3 )

MS~SD _________ _

Split Sample ID ----------

Analvtlcal Parame!ers, VOCs (Standard List)

VOCs (Ellpanded List)

Collected

( '3 )

Be(emnce Point ldeotlflcat!on:

TIC: Top of Inner (PVC) Casing

TOC: Top of Outer (Protective) Casing

Gnlde/BGS: Ground Surface

Redevelop? CJ ~f.a.J

Meas From

Addltlonal-11 maintenance needed? Y ® EVACUAnON INFORMATION

Pump Start Time -....;~~~:-::3:-:D~ Pump Stop Time I tt L

Minutes of Pumping ---"":1'1-:;---5~ Volume of Water Removed Y I M

Old Well Go Dry? <!£)

Water Quality Meter Type(s) I Serial Numbers·

Pump Total Water

Time R8te Gallona Level (Umln.) Removed (It TIC)

I Iii ';() \so ... d.._:. AI"" G:?..,-I~ 31) I z~,.,tr..:. .• , . b-~4 /'-I 1-4 D tA""'- ~t'\ I b.(;, f to.tt4<l t~,.L "'"' (; 14

( )

( Z.l ( )

( "Z ' ( )

( }

SVOCs

PCBs (Unfiltered)

PCBS (A~ared)

Melalsllnorganics (Unf~teredl

Metalsllnorganlcs (Filtered)

To~ICyan~e(Unfi~ered)

Total Cyan~e (FiHIII8d)

PAC Cyanide (FUtered)

PCDDs/PCDFs

)

't.l

~~

( '

(If yes, desaibe below)

( )

<z> ( ) Pastlcldes/Herbic~es

)

~) )

Temp.

(Celslu1)

!3%1'

N'(1

)

( )

(•)

Natural Anenuation

Other (~pedfy)

S....l~ick.. Evacuation Method Bailer ( Bladder Pump £X PertstaHic Pump ( ) Submersible Pump ( ) Other/Spacl

Pump Type: ' r ( .A-f Pft. • II "1'1 Samples collected by same method as evacualion? (j} N (specify)

)

( )

(,)

( )

k-fdr w l...(..r 1 • .;(.1 {I ;,c,q ~ "/S~ ;t~ 'I ,I, AI •1M./, .,

pH Sp. Cond. Turbidity %~.-.t,· ORP

(mSicm) (NTU) "" (mVJ 10.1 units!' 13'41' 110% or 1 NTUr 110% or . rtomvr

~{'4 AIM M.M MJ\11

"""' I I I I

I J

• The 1tablllzation aiterla for each field parameter (three c:onsecutlve readings collected at 3- to S.mlnute intervals) Is listed In each column heading.

OBSERVATIONSISAMPUNG METHOD DEVIATIONS _....::,]';.;.;;"·~/.,:L/_ppvtc...__.::-19"-""·J<-..:.~-";;.;/.;.;;'V;...;.;..Irs;:;~--------------

SAMPLE DESTINATION Laboratory: ____________ _

Delivered Via: ____________ _

Alrbilllt: ____________ _

I

0:\0E'GE._~.~ec-tl MIIP~\F5P-QAPP 20t~t3 F'Ntt.Voi iMAa&O' ~·b-~o-~..-

Page 82: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

2- 7 Attachment D·2 PAOE. _ OF_

GROUNDWATER SAMPLING LOG

Well No. __ :lL-<s ..... - _-Jo:.cb:.:..R~---- Slle/GMA Nama -.....,..,..-O~P.,..,c4-,....------------sampllng Par1onnet -~¢J9~C,~8:::..;P;.._. _________ _

Date -=~._,.;..c./.;..l'.:.f' _____ .-~----Waather -.....:"*""""----"""':....:,........;~""1/"'"---C;:;.;;...b='-r~"------

WELL INFORMATION · See Page 1 JCZJ• ~kttl

Pump Total Water Temp. pH Sp.Cond. Turbidity

"6",;~ ORP

Time Rale Gallon• Level (Celsius) (mS/cm) (NTU) (mV) (Umln.) Removed (ft TIC) [3%)' [0.1 units)' [3%)' I [10% or 1 NTUJ> [10% or~ [10 mVJ'

\S"""ts- lOC. ML ... HI" .::.sr M'1 "V1 iW1 51'"\ #}I? M1 IS" 'U> \oi)~toL <;,. s"' I l I

"\ "' "'' \<) 'Z. ~ lr,.,,.,t. '~~.1\ (. S1 I I 38-> \~Jo \I)C l'ti. ~~·,I\ ~ -c;ro I I 1~l/

!ts'l) ICJOfiL ..,;1\ (,.~1f v ~ ~ ·:n\:l \I v (i4o leD "'t/ 1'\:" b S".'if. "5"- "':1 1--17- Y'6~' "'2 '61 ~?. {, Sc.:>-1 \51.& l11c~L ~~·, '\ l i .')~ ~:).+ 7 .~ l..Jf.4Z.. ~'1" 'Sag_ '-1 ~-Cj \$"";- 0 1,., /,., \.·, , {;, .<)~ S.G, (, ."tD 'f7(-l Zofo '-1 3.Gf t../o . --=1-IS"~ [CiJ~ .A.i,. (_,~~ c; .c, C,.~l 'i1o&) I~ iii-$ '"!8 -'-I I (,Ob ltl'l fl'll "''" (p .t; t( ~-)- (,_.4;,3 ~(,'1' 13') 1 '1.'"1 '31.?...

iC .. o·> ico,.( "'' (, .~ '6 .;.'"/ C..71 l.j G,y t? \\'1 'lCi.l 11-6 \L,tO 1o0 .,L A.\, If •. t; ~ ~.~ L.1c,

'"'" 6'6 I o 1.. '2'-. z -z~.l...

l~l'l loohl (,1\ l~ .t;~ ~ -'-1 (, 74 '15'10 ~ 'i . 2 z}t + ZG. .. f l(o Z.o \c; t. ,,L "'" C.. Pol ~.'-1 G 11 '1'il1 '1741 Z't.o z,-, ?--

\(.,''l.c;" \v.,..,L(.,, ..... L ·S'~ ). ') ~ 71 q ~~J 11 .1- -:.I./ Z<l.~

lt,; >c- fll'"'L ~'~ G ~'6 )-. ) f. -1 '-{ ~ "'to J( •. C> \~.(., 2). 5"' ! ~ .. -!.') lw"tl. "~" t,.~ ~. s- (, . T3 L.j )~l S"Z. '-( 1\-l.f '2 7.G. l(p L#o lt.uo.l. .. t" '4 G.S"" <r t;.t;' L.7 J q 1 o'-f ~'t .I l(.el ('1. ~

f(pL/o loo,_,t.f,...·, ~ 1'2. ' f'1) 8 ,t. '" '"~'I ~ -

l+Zc;- bo~'>L " ' ,.._ ~ .. no,.} lo ~ .... o : "o: <"~ 0 l 1 "'-. fbi'. fj (,~ \ ~

~ ..--v

..., , --v ~ p-

-----~

------------'The stablltzallon cr11eria for each field parameter (lhree consecu11ve readings collected al3-1o 5-mlnU1e Intervals) Is listed In each column heading.

OBSERVATIONS/SAMPUNG METHOD DEVIATIONS ( ,J P'"lo ,, .. ,'/;' flO #.C

G\G£\GE,.Prltlfteki ...-~MII,..._,CHOM~5P~N'P20tHI-1af'NI\VdiM~PaO\ ,_-.O•Aa.D-,2 . .-

-,_

Page 83: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2 PAGE OF

GROUNDWATER SAMPLING LOG

Well No. _ ___:G~:::>:.:..II1:.:.J4:.:!:....:if:t.. ·_-__:,:,:..._. ------ Site/GMA Name -......,.~O:LB::e::..4..:..:5. ___ =-------------Sampling Personnel _.!::C;.!.'..::.IG~"7~~1:.....,..~<::!=.\.., ....JP~;.:J .. .,cte:::.~c~4!.:!"''-.!f'r;!:"'~"'L-------­

Date _.::~4-w/~'ll.l.l~.f-----r----------Key No. :'11" · · .-

PID Background (ppm) ----------Well Headspace (ppm) ____ ..:;;_ ____ _ Weather _..~:.D!.!~:.::'V"::.;<'-:!;:2:J:...:---ti•!#J':t:t;V~~w~·"~J..J)L-__________ _

WELL INFORMATION 102-5' Sample Time-,--:-=,:-,-------

Sample ID t:;,M.Itif· 6 Reference Point Marked? (J N

Height of Reference Point TT.C. Meas. From ~ Duplicate ID i)Gif' 011-'011'/-MS/MSD C,M ij---6· M>(<4!.0 Well Diameter 2 "

Screen Interval Depth 2. c; · 12. ') Water Table Depth..:q~.,_,I'-'=0':::---­

Well Depth 12. ·9o

Meas. From rp.: .. Split Sample ID __ .. :,_:fli'IA-:..!.:., _______ _

Meas. From J Meas. From Required

Length of Water Column. ___,3'-'-._.("-"o'--------, Volume of Water in Well 0 • 5 q :Ja l

iO."'' Intake Depth of Pump/Tubing-:_:_:·-":.>:.___ Meas. From TJ:L-.:__ __ _ ;><:>

)

)4) )

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOG: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y ® Additional well maintenance needed? Y ~__.../

EVACUATION INFORMATION

(if yes, describe below)

)Cl )

'f>

)

~)

'fl )

)

'JJ>

Evacuation Method: Bailer (

Analytical Parameters: Collected

VOCs (Standard List) 3> VOCs (Expanded List)

SVOCs L...) PCBs (Unfiltered) )

PCBs (Filtered) 2) Metals/lnorganics (Unfiltered)

Metalsllnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered) (

PAC Cyanide (Filtered) ( I

PCDDs/PCDFs 2. Pesticides/Herbicides

Natural Attenuation

Other (Specify) ~,,,(;Jc_

Bladder Pump (

Pump Start Time OCfl 7 Pump Stop Time ! If I 'i

Minutes of Pumping ___,'2.-::..~.:..(b=---­Volume of Water Removed 7 ~ I

Peristaltic Pump ()Ol Submersible Pump ( ) Other/Specify ( )

Did Well Go Dry? Y UV Pump Type: Gvr"f 2 Samples collected by same method as evacuation? (]) N (specify)

Water Quality Meter Type(s) I Serial Numbers:

Pump Total Water Temp. pH Sp. Cond. Turbidity DO ORP

Time Rate Gallons Level (Celsius) (mS/cm) (NTU) (mgll) (mV)

u'l..!IJmin.) Removed (ftTIC) [3%]* [0.1 units]* [3%]* [1 0% or 1 NTU]* [10% or 0.1 mg/1]* [10 mV]*

0<'13<; ~ IJ..S jVM (.1.J..S Nil"\ /\I'M !VI"\ 6.otf ;(,/"\ ;t,-M

Otll.f-D ,7-s i C!,l.ff {;~tr {1-t-5' 1.16-o lf.-t7 o.cto 2,.5(:01,5'"

oetl..f-5 I C1. J.1 &sr 0.3.'5 1.582 '1. o;fT 0..$~ 2-:>'i, ")_

o<!5o I tp .. r- {lo {5t:;' LJfy Li?s- o.3 I 21/f; 3 l

jooo I CJ.2 -r (,fv 6.3C( ,, 3;7/ Lls 0/)2 s/f; Y. Joo5 I Ci,l.S' Ct.:: t .4-'Cf j, -yf-)- L2'i 0.4- f i%',3 1010 I q,2g' c;s &,59· /. 3'7'1 /ott- O·lf/ 7!JA .. ) loiS ~ ·~~-- 1 . .2-ff {,f.v &.>t-. [J7c; O.c(Cf 6,!f0 76,2

.. *The stab1ilzat1on cntena for each f1eld parameter {three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading .

OBSERVATIONS/SAMPLING METHOD DEVIATIONS JI"NI .; -c:f.. ~en,'~c,"<l. Ho..r ·ft.r<>fi U?if cd/."'"-cf c.t f: OCi:? fr, ·.:f lv'o4e I \15,1 s.,...-1.,1,) .tr:f 01'5tf ckt-e ·kJ Ot-V r.c,.'.':;:i U..··~ ,,:JI' kMs?-t-,1 .91 ~-,,'$~(, . .,; ... ,( ·~/ ,w:,.£.,...y....

C~eL~ .... Ne'v' Kr '{(]. P:) # 5 llJZo:J..S""::,.Cf!J r,., 1,1 p"Jp folorks,, -'\0 oJ.r, fit,( S~«<.. <?$ h./,J

SAMPLE DESTINATION

Dt1P '3

:2

2

:z.

Laboratory: _____________ _

Delivered Via: _____________ _

Airbill#: _____________ _ Field Sampling Coordinator: _ _:~~-:/'_...-_7~:Z,.L~;...·~~-/:__:. __ :::::;::::::: __ _ /(;

G:\GE\GE_Pitlsfield_Generai\Reports and Presentatlons\FSP-QAPP 2013\06~13 Finaf'-\/ol H\Appx D\ Appx D ~ Atta D-2 .xis

·"4••0 (.

lf-

'+ 2

2

1-f

.2.

Page 84: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment D-2 PAGE~OF.2_ GROUNDWATER SAMPLING LOG

Well No. _ ___::c;_.M_I-f.:..-.:..{.,_.: ------ Site/GMA Name oPrAs

Sampling Perso~::~ ~{~~r:~.~J.~q~~~~~~==~=~(~,~E~n~;:<:i~~~ki.~=y~,~-================== Weather _=:C>::::ow:!:::.:· c::!.'l;::~ti-..J.;_....;I:!'J.L'IE!J-::..!l'v~,..~tL-------------

WELL INFORMA~;,See Page 1

~·Pump Total Water Temp. pH Sp.Cond. Turbidity DO Time Rate Gallons Level (Celsius) (mS/cm) (NTU) (mg/1)

!'fl-/min.) Removed (ftTIC) [3%]* [0.1 units]* [3%]* [10% or 1 NTU]* [10% or 0.1 mg/1]*

{O£ll 17-S 2.'}<11 C},l$ [G, t_.s-'1· I, 31 J.- 0, S' 2- o. 3&-" I02S AI/ "aJ<I,...b>. S~blt ~ ·" 5<-.f!i, k.

/ /

/ /

I/ /

/ / j //

-Ill 7/ /IIIlA (/

/7 rt~v7 jl .~ 1/

/Ill/ ;V;//7

il r~ fj/

/ v

/ /

/

1 I

/ /

*The stabilization criteria for each field parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading. OBSERVATIONS/SAMPLING METHOD DEVIATIONS

G.\GE\GE_Pittsfield_Generai\Reports and Presentatlons\FSP-QAPP 2013\06~13 FmaiiVoiii\Appx D\ Appx 0 - Atta D-2 .xis

ORP

(mV)

[10mV]*

7Df

7 /

Page 85: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2

GROUNDWATER SAMPLING LOG

Well No. t\ ~~ - \) \ S Key No. V\ v\ ~ ( ).._ t; 1> J

Site Name -J....;;.___:.!...:..-J..--:....-_:_-___:-,~7-I-.:::__-..,..,._--,----. Sampling Personnel C <V 11

PID Background (ppm) ---------.,-----

Well Headspace (ppm) ----------

WELL INFORMATION

Reference Point Marked? rp N

Height of Reference Point -\ . ' fo 1 Meas_ From

Well Diameter_~~Q'4--11,.,-___,,...,.. Screen Interval Depth Mti. f6- !Cj;~eas_ From

Water Table Depth J · i :f'Meas. From _-_,_1...:.'-=c_=---Well Depth . , Meas. From _\-'-'-l-'C:.___

Length of Water Column '=l._· 7J 1.. Volume of Water in Well V, I ~c. /I ilo.._J (__

Intake Depth of Pump/Tubing \ \') f Meas_ From_'""_:_\_\_· __

Reference Point ldentific<;Jtion:

TIC: Top of Inner (PVC) Casing

TOG: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y Q

Date --IJC--!..!:::l-=7:1-..!.rlf:.---------------­Weather ----'~_::_->L=..:...t:.-'--t--------------

Sample Time q ~ s-S Sample ID tl ""I ~ -1::; 1,:;

Duplicate ID _.--

MS/MSD-

Spltt Sample ID ~-

Required Analyjical Parameters: Collected

c3 ) VOCs (Standard List) <3> ( ) VOCs (Expanded List) ( )

( :t> SVOCs ( :l. ) ( PCBs (Unfiltered) ( )

<:1. PCBs (Filtered) (''"~.)

( Metals/lnorganics (Unfiltered) ( )

( 4 ) Metals/lnorganics (Filtered) ( I )

:f4 Total Cyanide (Unfiltered) ( )

Total Cyanide (Filtered) ~~ ( ) PAC Cyanide (Filtered)

2> PCDDs/PCDFs .. ( '":2.. ) Additional well maintenance needed? Y G (if yes, describe below) Pesticides/Herbicides )

EVACUATION INFORMATION • ( t) Pump Start Time _Q-l-.'---= Pump stop Time I 0 ~ Lfs

Minutes of Pumping Cf 5:'"' 1'\1\ 11-\

Natural Attenuation

sh::rT?j ~ I Evacuation Method: Bailer ( ) Bladder Pump ( )

Peristaltic Pump (:,{ Submersible Pump ( ) Other/Specify ( )

Pump Type: -~l:~<.,_,0~~ln..-{+--------,""--------Volume of Water Removed 'J_. ~e._, ( Did Well Go Dry? Y N

Water Quality Meter Type(s) I Serial Numbers:

Samples collected by same :method a , eva,cuation? :()I" N (specify) • . 1

_ ~

\A_\cJI Le vd \Gl.{( 6 t'l~~ftr~~[~$~m~~~hi'l~lj~~IX) 6~ 2

Pump Total Water Temp.

Time Rate Gallons Level (Celsius)

(mllmin.) Removed (ftTIC) [3%1*

Lt' ts (00 I r) ,qq ./!A-VI

y_·,'\_< lU\) t ~ c Ci_l ~.I q: ') D {J\.) \t.f.CU {9,1

Gt: )5' lO'D ('{.u( ~.I <\. '-() lv 0 ti 01 (o t (

cr,l{( llf\) ,l; (L( · 01 {o . \ ICf,~o \ ()\J I)_ '3"- ( ("{.<ft ~.1 , ___

- f\ l (1 ~I ~M~{-{ ( s ~+ " .

Delivered Via: _____________ _ Airbill #: _____________ _

C:\Users\cenechukwu\AppData\Loca!\M!crosoft\Window~'.Temporary Internet Fi!es\Content.Outlook\416NXBOC\ FieldForms.xls

pH Sp. Cond. Turbidity DO ORP

~/em) (NTU) (mg/1) (mV)

[0.1 units]* [3%1* f1 0% or 1 NTU1* f10% or0.1 mg/1]* [10 mV]*

NM llf.tvt q,-; YSc,;M ~ l,~·1 1_33.1, 1 .( '-( I 0. I l, 1~. }/ l/~/1 'L~'AS \-53' 'T. Cf~ 77.0 1. 12> 1_ 3'3.~ 0:1'1 ····~· q(o lt ~~ l-~~ 't0Lt.::) () .1 ~ '\_,qq l'LO t .~'( rt'1ct.6 0:3b tq~ 19.) l.)U '1.3Lf:s u. '3 'if ct.qs 7Cf. b

r-c la \ _Q_

Field Sampling Coordinator:

Page 86: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2 PAGE OF

GROUNDWATER SAMPLING LOG

Well No. _ ___,0::..!:..:()('-"~4,_-_...,:..::..,.=---.J..j .,_,Rc.:.R.:___ ___ _ Site/GMA Name __ ......,...O::::....:P,..:r,:.A..:..)~---;-------------Sampling Personnel __ _::C:::..,.L' ...,..:.;l(;,~,,;aS"$'~i2-!i:J.{ _____________ _ Key No. Mtt;.i..f 2/i) 'i'-

PID Background (ppm) ---------­Well Headspace (ppm) ----------

WELL INFORMATION

Reference Point Marked? N

Height of Reference Point_Tll'"""'r~· ,--­Well Diameter 2 if

Meas. From TIL

Screen Interval Depthi1J':I·27.7"i Meas. From+=. Water Table Depth ! C..q; Meas. From

Well Depth 2Ztf1tto,?l(-=- Meas. From-~--­Length of Water Column 1l.2.S Volume of Water in Well 1. &- ,..r

Intake Depth of Pump/Tubing 2.0 '

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOG: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y {!)

Meas. From _T.:_..I_-=C:___

Date __ ,.:If-:!.,.-L/.!!IO::_,fc_:l::!.if-' _______ .,--------Weather _..Lc;~o:_'_•Lf..,J,;:..C~lec_:;•J:::.__,,'---'--i :.;;-?~..:4:..:-1----!w-"'-!.•'-!=.tJ _______ _

2.1. ].2- Required

( )(J) ( )

<X'> )

>OJ )

)Ol )

)

)0) j:))

Sample Time ---:-----'lul~.l.::.:O=-.-:::-;::-----Sample ID _t;!.l.!:t?q~·:!......:-#=V-·'---I~f..:;_c..:..{(:__ __ _

Duplicate ID --~N'A--'T-::_ _____ _ MS/MSD ___ l-1--------

Split Sample ID --""·:JL~-------Analvtical Parameters:

VOCs (Standard List)

VOCs (Expanded List)

SVOCs

PCBs (Unfiltered)

PCBs (Filtered)

Metals/lnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

PCDDs/PCDFs

Collected

3> )

2.> )

2>

Additional well maintenance needed? (£) N (if yes, describe below) !Jee'o:. l"le...,- ict::ICl o1e eydd-- GY~ ,.,.,.~oak b'uK;;~ e;sff',

EVACUATION INFORMATION

) Pesticides/Herbicides '2- )

)

) Natural Attenuation

P> Other (Specify) .S"tf.•k

Evacuation Method: Bailer ( Bladder Pump C

Pump Start Time __:;O:..".:...II-f..:....::,=--­Pump Stop Time __.~l---"3:..:0:::....-=·r __

Minutes of Pumping -~2o.:O.:...If.:.__ Volume of Water Removed _2::.:,$~1-'-'-".LI __

Peristaltic Pump (X) Submersible Pump ( ) Other/Specify ( )

Did Well Go Dry? Y <1J) Pump Type: C..>cf~f 'L Samples collected by same method as evacuation? (j) N (specify)

Wa~uality Meter Type(s) I Serial Numbers: ,<

Pump Total Water Temp. pH Sp. Cond. Turbidity DO ORP Time Rate Gallons Level (Celsius) (mS/cm) (NTU) (mg/1) (mV)

''W-1min.) Removed {ftTIC) [3%]* [0.1 units]* [3%]* [10% or 1 NTU]* [10%or0.1 mg/1]* [10mV]*

ocft;o IV-o #1'1 175'3 ;\I'M N/'1 ,4<;11 !f5~"' .11tl'1 _/11'1'1 \ooo 17.17- ItA 51-- 7.o~ OS"t"S' 27.7 Jf{S J)J, { loo5 17,'/f-t lo.59 7./b O.B"'15 21.1 if./5' Joi.G lolo ~I.::: {/.qlf r rd- ::r £. 5'"6 D.cfl'-t 2o, I 3,qf C/5;) jotS ;z s· )1,qif lo.l-~ 6. {;Cf OJ/53 ts·,z s.rs C(o,g-l(:>l-0 l j7,q)' lo. 3'2 b, 55 !.DID q,pf 2.s-q 86,2 {025' IW }7,4 5' fo.3G C,.bo !.ol/ q,(,:; 2,C(J- "78;( fo Jo 7-5 w if~oo 10,52. l, )5' [,01} lo.l 2.cf/ ;zth-&-

• The stabilization criteria for each field parameter (three consecutive readings collected at 3-- to 5-minute intervals) is listed in each column heading. OBSERVATIONS/SAMPLING METHOD DEVIATIONS T;:/ .. 1 p o, e (c/wj;:s.> "" Na.F, O<:f5't -f';,.., -ft.,.,.,.~ C?fl al--l«ci.J ·" , I ':J J " - {V J\1 1 ,t")oJ-- ,-'\.o ~-~._

SAMPLE DESTINATION Laboratory: _____________ _

Delivered Via: _____________ _ Airbill#: _____________ _

G:\GE\GE_Pittsfie!d_Genera!\Reports and Presentations\FSP-QAPP 2013\06-13 Finai\Vol !J\Appx D\ Appx D ·Alta D-2 .xis

Page 87: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2 PAGE 2.-0F 2-

GROUNDWATER SAMPLING LOG

wen No. __ O::.....:.R-=r--:.t_-_A1_.,.._-..!.i.!.../(:...cR-"------

WELL INFORMA~See Page 1

Pump Total Water

Time Rate Gallons Level

~min.) Removed (ft TIC)

1035 ;zc; l'vfr'. llll) iotto /1.C(I-/-{ot.J-5 /7.q 3 I05o , 17.q3 1055 1£1£> /7A) II Ofl. ~ 7-5 i7.'1J 1iiD 7-5 .,j I '1.q3

IllS :;z.) 2S 11.t(3 l/20 Atl D "'""" 1..,;.; 13o+- P•""p €}_ IFf- e~ll' s·t...,tfo.s

;) J;/

,//

/ //

// _,/ ... /

/?

/

Site/GMA Name __ ..J.LJ....::.::...!..L:...__ ___________ _

Sampling Personnel -.L.L.~~.U...------------­Date _....:...t...:..=..L..!...L.-------,--------­

Weather $0~ "'f) Cie.,r) /.';~if- iv ,,.f

Temp. pH Sp. Cond. Turbidity DO ORP

(Celsius) (mS/cm) (NTU) (mg/1) (mV) [3%]* [0.1 units]' [3%]' [1 0% or 1 NTU]' [1 0% or 0.1 mg/1]' [10 mV]'

{D.0'b C. c;c }.o( 7 q,qg "·'&'" 7f,,

/0.13 {;,53 I. 23/f (,.oq 2/f"7 7/. f lo.s-2 b. 52 1,23'6' ],(.,2... 2,4-if 6q, 3

/O.f-5' G52 1.230 4-.b& 2.23 67.8 IO.ff3 G.5'3 ).22 7 {q5 ?,C{g 5'8. 5

11.2.0( t.5'f' i.2')i G.Cl) 2.Cf.2. t.,L.o

II• 5o CS5 j, 3oi c; 's-tt- 2 J ffl 02. 3

11·/.f" tS'i' }."352... C.t/-5 2. b&' (;;2.,C(

~bli k '"' <c. ...... l '-<.

Colkc:W I

/ /

v //"'

' n / ,', ~/·

l·.~(:/ /~//

// lJ.;Xl/· /

<' ( /~ t>:~··

.""· ... .· '/./· / ·'

/J//// . :_;./

//~-~/ .. .•. / ;/

.. • The stabiliZation cntena for each f1eld parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading .

OBSERVATIONS/SAMPLINGMETHODDEVIATIONS ko~e; Ali pc,;-..._J.,., W.,'h•v..loY. a,/ ,J.vi!J;~1.~ /(!ss-li-.-... 5(!.>~VT4. 6"'-<f yw'j<? (Q!<R[ktJ/ CX2 oJ.J'

G:\GE\GE_PIItsfie!d_Generai\Reports and Presentations\FSP-QAPP 2013\06~13 Fina!Noiii\Appx D\ Appx D ~ Atta D·2 .xis

Page 88: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment D-2 PAGE _1 OF :z. GROUNDWATER SAMPLING LOG

Well No. ~PeA· MW" 2R, Key No. 2J;3.1 PID Background (ppm) _._N-=cM:-=:-------­Well Headspace (ppm) __,N'-=M'-"--------

Site Name _---'!O!<!!..l'P~CA.s!!!!!..l!oi!!...--,----.----,----:-------

Sampling Perso~::~ ==~~~J~:~~:~~~~:::Ah::~=~l ~C::·~E.n:::II!!:Ow:::~l<.t.t.:::=:=:=:=:=:= Weather _ _,S..,..Uuf'\'-"-:)P.S""'-'"""'-•--------------

WELL INFORMATION

Reference Point Marked? (!) N

Height of Reference Point nc.. Meas. From -.~:Nft:!!..!!....---Well Diameter___,Z=-'-'---

Screen Interval Depth 12 ,Oif•Z'?.~Meas. From ...,'11:"-'-=C..=----WaterTable Depth z.a.o& Meas. From =nc..

Well Depth 2..'1.11 Meas. From -'11~(.., . ..__ __ Length of Water Column &f ,J'Z. Volume of Water in Well

Intake Depth of Pump/Tubing

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

o.r.1 ~ Z.S' Meas. From -11'-'"C...-. __

TOG: Top of Outer (Protective) Casing

Grade/BGS: Ground Surfa.~e

Redevelop? Y 8

Required

(3)

)

Z.l ( )

~~~[:~; f\ ( ) (

( I ) Z..l

Sample Time _t~&~OO::=::--::-:--:-c::--=-::=---­Sample JD OPeA .,..rntA)..-ZJe.

Duplicate ID -----------MS/MSD =-=:.._ ________ _

Split Sample ID :::--___________ _

Analytical Parameters:

VOCs (Standard List)

VOCs (Expanded List)

SVOCs

PCBs (Unfiltered)

PCBs (Filtered)

Metalsllnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Collected

(

3l )

Z,.l )

:Z..l

( l ) ( z.)

Additional well maintenance needed? Y 0 (if yes, describe below)

Total Cyanide (Fi~ered)

PAC Cyanide (Filtered)

PCDDs/PCDFs

Pesticides/Herbicides

Natural Attenuation EVACUATION INFORMATION

Pump Start Time lU/? Pump Stop Time --'::/'761.':=-=::::::c--­

Minutes of Pumping 380 Volume of Water Removed "'*Z.S~"' ~S

Did Well Go Dry? Y @

Evacuation Method:

Peristaltic Pump ( )

Pump Type:

Other. (§pecify) ( l S>ui-Qd~

Bailer ( ) · Bladder Pump ()(')

• Submersible Pump O(l Other/Specify ( )

N (specify)

Water Quality Meter Type(s) I Serial Numbers: \1$( ~ e \1 ic. ~N • n:t'\o-,C:..,4f J '-'Mh '7~ P <.N! 02.1t111U!!tAA? ~ ~d:.~~ i l'lt'7~18 ..

Pump Total Water Temp~ ~H Sp.Cond. Turbidity DO ORP Time Rate Gallons Level (Celsius) (mS/cm) (NTU) (mg/1) (mV)

(ml/min.) Removed (ftTIC) [3%]* [0.1 units]* [3%]* 11 0% or 1 NTU]* f10%or0.1 mQ/1]* [10 mV]*

I 2.2.5 \7.0 NM Z&.\1 NM N~ NM LCA t:. NtA WM l2.30 foO 2?i.29 1 za.~

, lza5 so 23.!2. v ·II 'I/ '~·· ~ '" I:Z&K) ~t,ed. [up '/S'\ 12-'fS 40 J 2,!..58 \'+.2. (....&1 0·"81(,. za.q <..U qz..3 12.60 eo zs.-.z. 14.'2.. c-.!7 o.,,.z. 2.1.""\ "'-·'-I c:u.~

\'2.$ So 23.~ \'·\>.0 fo.2.Co ~.'11., ts.z.. 4-.WO tt~:1 t3oo 5o + awr 11.4-.0 ~.-n O.'M"J 10 ... q.(ol q<t.q

.. *The stabilization criteria for each field parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading .

OBSERVATIONS/SAMPLING METHOD DEVIATIONS lnrhAJ pu'!'! ('t.tJ,:Jif"kSS I no dd(K , tJM • Nlf= ~.:SU~

SAMPLE DESTINATION

Laboratory:_~....,....,.S..._ __________ _ Delivered Via: ______________ _

Airbill #: ______________ _

C:\Users\cenechukwu\AppData\Loca!\Microsoft\Windows\Temporarylntemet Files\Content.Outlook\416NXBOC\ Fie!dForms.xls

Field Sampling Coordinator: _!.dd~~=· 7-,,f~<!::IL~-:::...~-=----------

Page 89: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2 PAGE'2. OFk

WELL INFORMATION ·See Page 1

Pump Total

Time Rate Gallons

(ml/min.} Removed

I30S so NN 1&10 .so ISiS so ..

l32.0 50 l!ZS so !!SO 50

\i!S 100

t'YfO tOO

r~&&-5 so l~60 Gt> &366 So

l'k»> too lAfOE. tOO

..... 0 so l&.\-1~ 5o 14-20 6o

latlJ; 60

14-SO So \L.\-$ .50

lLf&Jo 60 14-tis So \L\50 B:> ,v \t\SS 56 ""'2·5 LSOO itwbdtf K-'601' -

--------.. ~

r---

GROUNDWATER SAMPLING LOG

Water

Level

(ftTIC}

Z.!.£1 .za.pt. 2.'&.'!>1 ~'!.42.

'2."!..C..(,.

u.c.a 2.1.iZ.

23:11

2.3.~\

21.'12.

:ZS.i'l '23.4\6

.v..oc., VI-.oct :z..atoq 2.t.toq

Z4.~

2-l.f-.oc:. l"\.d. 2'4-.0fD 2lf.~

'2.Al·OGP

lll-.~

'rosi pear

.~ -

Site Name 0~ Sampling Personnel Se~MAA

Date ~lt&l Weather Sl>n j S& '

Temp. pH Sp.Cond. Turbidity

•(Celsius) (mS/cm) (NTU)

[3%1* [0.1 units]* [3%]* [10% or 1 NTUl*

'~·2. ~.33 o.ftoz. ~o.q

\2..2. (o'.&.&o 0,'\00 6.£ u.s <o.ss o.~q t.&o.Cf

lO.C\ (o ...... o.,, Ce>.'2..

ro . .s e.,,au; o.qeo 1o.1 1o.s t-H\ O·tell, U:]

h~.~ t-.'4-, o.qea ..,,q ll.tt t...,.Lf.'2.. o.~,2. &>.2.

u.l ~:z.7 D.~~ 4., u.s &>.1'!. o.sn 6:1 lo:t ~.o.cn o."lOI <iO

"~·"i" (,..~\ O.C\Ot ~.(..

q;r <..~ o.,cz. .,,, rc.6 c.,.~ eRato aa.., 10.3 l...!tO o."l'7C. lU:,.1' to.o (o,z..q . D.CIIt,., .5&..!. I o.t ·

"'· 2.2. o.q,,_ ~.3

\0.2.. (cp.@ o.«no 31.f> 16.1 -.,.Gl o.crra zs~

tc.t &,.&4-1 o.ct(..i 14.& IO·l. (,.&I-; o.ct(a6 q.~

to.t (e..,,'! o.ct"l &:,.~

lO·'i (,.,,, o.~ 6.6 .. ... I.IOt*l II\ I c "/.) SC.M ~ collee .. .......-......... 'i /

v £h v // ~ ~ ~ -==-

DO

(mg/1)

[10% or0.1 m>J/1]*

.... ,,_ q,Sf. Ll.c.B

"*"'~ 4-.&U:, ij.,'k, q.qq 4-a+ 4-.l'f-/ t~-.oS 4-.06 ~·-s 3 ... , Z.:1'2.

z..ars 2..64-5 2.Llof.,..

2..8.1-(e

2..-K z..s'! z.as z.st

'2,.29 ~d

I

~I

'

*The stabilization criteria for each field parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading.

'-

OBSERVATIONS/SAMPLING METHOD DEVIATIONS ~ slcp Mdtu:u::l @ 133S doc -h:, eJ~~ffl\nUO&IS

"Iurbdt~ sptiWA (! II.J.to dt.U. h.> lowen"3 c»0 bltvArltr pump.

C:\Users\cenechukwu\AppData\Locai\MicrosofL\Windows\Temporary Internet Fi!es\Content.Outlook\416NXBOC\ Fie!dForms.xls

ORP

(mV)

[10 mV]*

'11.Z.

Cio.l

'1'6;'7

4lct.t.e.

'~'..2. ~.,

tS.&i-'\1~

4\i.O

toe.g 'If.,

11·5 'lt.~

1'2. .1 , .. , , ..... q q:z.,1

11.1

it.S to4

"·' '11.1 -n.<}

Page 90: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

2.. Attachment D-2 PAGE OF

GROUNDWATER SAMPLING LOG

Well No. b?C 1\ - fo'1 W o, ~ Key No. M ll$i t r ~-- :r1 PID Background (ppm) N : Well Headspace (ppm) N f.'\

WELL INFORMATION

Reference Point Marked? (f)N Height of Reference Point c.4s·'

Well Diameter Z.'' Screen Interval Depth J"1.itt • 2'1-{,'

Water Table Depth z .'!J ·l't' Well Depth Z7-~t ·

Length of Water Column '2..1 '}I Volume of Water in Well 0 ,. I '6 "'! .('13

Intake Depth of Pump/Tubing Zi;;.3'

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOG: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y G)

Meas. From

Meas. From

Meas. From Meas. From

Meas. From

Site/GMA Name ---7~"---.:..:.:::..,~~~--_D_P_C_"_/~...:_ ____ _ Sampling Personnel -~~H.;;i::-:-:-r:=:.!'-!....:...l.-----------­

Dam --ri~~~~-L-~~~-------------­

(( c,:.s.;

'"TIC.. TIC TIC.

\IC..

Weather

Required

<:S (

<z... ( )

"Z.)

Sample Time ___:_i_LJ:...S::::.'...;'D:::_ ______ _

Sample ID ~O::CLP:::::.C..;_I\r-·..:.!III:LI w!!l<:.._·3~---Duplicate ID _ _.!:lJ::::.!.,I\..:._ ______ _

MS/MSD _...:.N~I\,L-_____ _ Split Sample ID _..;IV~t...;\::__ ______ _

Analvtical Parameters:

VOCs (Standard List)

VOCs (Expanded List)

svocs PCBs (Unfiltered)

PCBs (Filtered)

Metals/lnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Collected

( :.? ) )

2..) )

Z>

)

I )

Z.> Additional well maintenance needed? Y ® (if yes, describe below)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

PCDDs/PCDFs

Pesticides/Herbicides

Natural Attenuation

Other (PP1Cify) Sv l(,.i<kl,

EVACUATION INFORMATION

Pump Start Time \ "3 I 5:' Pump Stop Time ...;1:...!1;'-L.:'lf>~.._­

Minutes of Pumping _..,;~}<'o'-'?L,--­Volume of Water Removed _5.:::.....;gt~;c_:},--

Did Well Go Dry? Y ® Water Quality Meter Type(s) I Serial Numbers:

Pump Total Water

Time Rate Gallons Level (Lim in.) Removed (ftTIC)

i3i<) ?o._,.MI.., "'''\ Af/111 1$.J'-( 13 'J.o lCC~?l 1,o,r1 -\ 1'2')- 115-o ,£ "1.1'\ 7& oo 13,jo l15""""ll. "'\·'\ {') . .;;, f tJ:w- i l) ,o~LI AI·' 7:> .·v~ a'-~o• 11" 1'1'- ""'" tS -'i '76 13 ... ,., I?~ML .'l\1 z<;_q, n.s-o i}$MLI .... ~ '\ ,v >25 ~,;\if

..

SAMPLE DESTINATION

Laboratory: S<J S Delivered Via: ______________ _

Airbill#: ______________ _

G.\GE\GE_Pittsfiald_Generai\Reports and Presentation:>\FSP-QAPP 2013\06·13 Rnai\VoiiMppx D\ Appx D • Atla 0·2 .xis

Temp.

(Celsius)

[3%]'

----

-i'Z.l<A_ I'SJ

(2.q

)

I )

Evacuation Method: Bailer ( Bladder Pump <'j..

( )

( \)

( ) Peristaltic Pump ( ) Submersible Pump ( ) Other/Specify Pump Type: Qf D f?/t..Jj,_. f',_,"?~ Samples collected by same method as evacuation~(]) N (specify)

Z3G03Lif 1) i(5:Ijf2.

pH Sp. Cond. Turbidity DO ORP

(mS/cm) (NTU) (mg/1) (mV) [0 .1 units]' [3%]' [10% or 1 NTU]' [10% or 0.1 mg/1]' [10mV]*

- - - - -- - ~ - -- - - ~ ---- - ~ ~ -- - .;_11.1- - -

(.,.(, I (;,Cit. '?,"1" 7~"i"" S3 -j '-~G:. l (,;, '1'-1 ji).tl 7.1.:. 3t;,. I (,. {oj G,ct~ 2'5".1 1$..0 "l. r. r'

Field Sampling Coordinator:

Page 91: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2

WELL INFORMATION· See Page 1

Time

11'-I'Z.o

Pump

Rate

(Umin.)

Total

Gallons

Removed

Water

Level

(ftTIC)

l. 2--PAGE OF

GROUNDWATER SAMPLING LOG

Site/GMA Name _.:::..C-=e--==--P_.t:..:.:,t5~('.:..=.,(17J.,-,;-__ A_:__ _____ _ Sampling Personnel __ g"+'-'~'T'-=--"'"C.;;..A.:..;I)':..~.-. ________ _

Date __ 4-Ljl---''b"'-/t""'o'-'-14-L/-:;:::-:::~----------

Temp.

(Celsius)

[3%]'

Weather -p:Pi"-'l ;"'-'t ('¥-y-"":v=~'(7--=-5"_,1_'_f-________ _

pH

[0.1 units]'

Sp. Cond.

(mS/cm)

[3%]'

Turbidity DO

(NTU) (mg/1)

[1 0% or 1 NTU]' [1 0% or 0.1 mg/1]'

} 3--Co

ORP

(mV)

[10mV]*

0 .l

I \ "-.)1 I '-~

// # ~

./ *The stabilization criteria for each f1eld parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading.

OBSERVATIONS/SAMPLING METHOD DEVIATIONS

G:\GE\GE_Piltsfie!d_Generai\Reports and Presentatioos\FSP..QAPP 2013\06~13 Ffnai\Voiii\Appx Q, Appx D -Alta D-2 .xis

Page 92: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2

GROUNDWATER SAMPUNG LOG

Well No. 0 ~fl. -M lV -'i Key No. A sJ;:. - Z S"1 r

Slte/GMA Nama ....... ~D:.._PC~..;.A..;.... __________ ~---Sampllno Parsnnnel --.;0111· ~R~l:~~~·r------------­

Data ~li14"""U:..t'•ipol~'-::!:"ll ~------­W•ather -l~O!~t.:.:l(:.;:4~~~1-=S"_.4:...if-..;....· - --- --- ----

PID Background (ppm) _ _..:IJr:-iA~----Well Headtpace(ppm) _ _;:AJ=.;.M_;... ___ _

WELL INFORMATION

Reference Point Marked? (v) N

Height of Reference Pont ~ <... Maas From - 'fld..;;;;.:JA.___ Welt Diameter ~ of .

Saean Interval Depth il 'l1 ~ "2 \ . 5 ~ Meas. From - '=-'.;;;C.;....._ Water Table Depth \~-~ Meas. From _ _,T:=I:-lZ::o;;.·-

Well Depth ::~.~ Maas. From __ -r.:..t...;C;;;....._ Length of Water Column 3. Z. 3 VolumeofWater lnWelt 0.1,161__!~3

Intake Depth ot Pump/Tubing ~lo CL Maas. From _ T...:.....:t...::::C."'--_

Refet8oct pP!nt ldent!fgt!on:

TIC. Top of Inner (PVC) Casing

TOC· Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y l!)

Required

( :r I (

( z. ) ( )

( "Z...I ( )

Sample Time -~~-.:l;.;l.;;;:ano~--:--­Sample ID _..~oO.t:.'*~A:..:......·-:-M...~..::::W:...·_.4:..-_

OupllcataiD ---...jV~A~ii-----MS~D ____ jJ~~~----

Spin Sample ID ___ ....ciJ;..~;A;a..... ___ _

A®M!cal P•lllmetm:

VOCs (Standard List)

VOCs (~panded List)

SVOCs

PCBs (Unfl~ered)

PCBs (Filtered}

Melalsllnorganlcs (Unf~teracl)

Melalsnnorganlcs (Filleted)

Total Cyanide (UnfiKered)

Total Cyanide (FIKered)

PAC Cyanide (FHiered)

Collected

< pDf~ )

't l )

"Z.. >

Additional well maintenance needed? Y ® (K yes. desalba below)

< f I ( ~ )

( I PCOOs/PCOFs

Pesllcldes/Herblcldes

Nalurel Attenuation

I )

~ ) )

EVACUATION INFORMATION

Pump Stan Time

Pump Slop Time Monutes of Pump.ng

VQjume of Water Removed

Old Wall Go Dry?

lfh-IS"io I:Zf~ i'

:t-7 @ N

.. J11 \000 $J'tr fy) \ llD Evacuallon Method: BaMer ( Bladder Pump (

Perlstalllc Pump ·lXI Submersible Pump ( ) Other/Specify ( )

y IJ Pump Type; ~ p...., ). Samples collected by same malhod as evacuallon7 C) N (specify)

Waler Quality Meter Type{s) I Serial Numbers: --~.=.:..h:;.;-Y?:;;:orliL_..ls.. . ....oJl,l.;.c,. ~•w'l"--~..!:....+..L.,-_..:.I"..;..:'>:I:;;...:.~;__2 _______ __ I

Pump Total Water Temp.

Time Rata Gallons Level (Celsius)

(Umln.} Removed (It TIC I tJ"'-r IS"LJO JOb..,£}. lA N'M iCf>.l'o J\1'/11\.

\S" 't'S' .--65" ,t.Jc..., I, (,l.. ~ -(:d

\S"'5V 75~LJ~ ~~·'iSO ~ -lt \~S") .so,..d .... I• )8."6&1 ~.lo

. \_~DO $'ottl ... ;, '"',l' 1- ~ · C' t&D'r Sbi"IL}.~\~ I'Lo<,$ 7-1~ \(o '~ S"r.nd•~ · I \'\ .. ls-i 1.'M' \(/IT ~0-1'\L '" .

SAMPLE DESTINATION

Laboratory· SG:$

h. ,v l'\.3o 11-11

Delivered VIa: ____________ _

Alrblllll: ____________ _

Q.'GE\QE._,...... o.w.M ...... MCIFWMt.&MICII'IdSP<tAPP 20lUJf..13 AMI\Vc!ll~ D\ -D·-D-2.olo

pH Sp.Cond. Turbidity ~~ .. 1,. ORP

(mS/cm) (NTU) i" (mV) [0.1 units[' [3'1ij' •[10% or 1 NTUr [10%or~ [ tOmVT

~" '116/lr .. I b.'f~ \.0 \0 ·t.1-i 'l \ -~ IZ-~1 - 1-

1.01 1

\ c eo 1'\~0 (;, -:L.:\ 'Zo ~-L \ 1-lo \.oo\ I ~.1 (o'l .1- ttV~.lo '1.11.. 0 "\~~ '";t. c;,~. ?_ ~~~-0 (:; .~~ QS~..,....- M·" (., ·l. .. t\ 110-0 1.i"iS c ~.,~, ''·~ (p'l,.~ t1o. c1 (,.~4\ 0 .'\~iS l I. ""I G,t.1 f?l.'l

elliS ~us./ Flald Sampling Coordinator: ____ ..;.,. _________ _

Page 93: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2

QROUNDWA TER SAMPUN9 LOG

Slta/GMA Name -~t-=~-----t-~~--­Sampllng Per.onnel -~~~--:-;-r----'~~=-E=~-~

WELL INFORMATION • SH P119e 1 ~- f./Jt1 Pump Total Water Temp. pH Sp. Cond. Turbidity 0.1- ~JIP. _ ORP

Time Rata Gallons Laval (Colalut) (mSicm) (NTU) "/fl ~J.; " (mV) IUmln.l Removed CftTIC) (3%}' I0.1uni1Sl' 13%)' [10% or1NTU)' [10% or0.1~ (10mV)'

/"2o ~fl1i./ ... : ... ~· ... ..., JlJ.'-11\ 7.'1"? 1-Z~ 0- "'1~~ -=1.\q C:, ·t. . ') 1?~-CJ \b1:S'"" $~£ ~.. J It:\.{,~ 1.i"'{ 1.)'\ C • clq,, 1. J l G,L ~ \10~_\ \(o1o S'o..J.,~.... 1q ·~1- 1 .it.. ":'/.}'"f O .. 'f~ 1.\~ Gr. L }(,<O.")

ifct'>5'" ~,.,,-,ftl~\1\ ltt-'1"1 ~ - "1"'\ y.z-,.. O.'lY"r ~-,\ G,o-\ 151-~ \<.-._.o S"D"L~~... 1o.o'\ 1.cfb 1.Zr o_'J(jS~ 5 . ...,2- S""Cf-~ 1~(:,."1-\fdo..fS" 5~~'" 2o. i'\ '1. -1}'f 1J$ o.'JfJ(,. S-~1s" S~-\ l?"l--) \C..'S"tt So...d~, '2t) .~l. 1 ·.~~ ":1.21 (;' .. tf~':/- b. 'l"'Z. 5 .:·L7 1"4~_C"-f ~s- l a::o ,.,t'/.~.:, 7o.S l '1 - ~'Z 1-Z~ C-C/~~ 9 . ''Z.) 5'~-'- /'-le.Z.. \lo~ r:;.:~ ,..,L ...,,... zo.C:.o -:f. ~3 1 3-z. 0."1~1 J\:J S4~'3 J~s.:;-11Cic; I S"t.,.,{l.~... "lo ~~q 1-c:l~ 1~12.. o.eJ~i' \o .. t ll't.1.... Jta -ct n IO So,t ~' '10 -t\ 'L ~-o i b-~7- Q . ri.:Sr 1-'li1 44 .. ~ IZ$: Z. i1·J5" 'S"t~"L ~... U .. \\ t£·c4--l 1 .. oi 0-~~1S'" S.'-tf. L./2."'\ IZ.l . Z.... il·Z.O '5'u..,L)"" '2A-2if 1 -~, 1 .. 2o o.q&~ ~ ... ~} 'io- • ~Jq.:""l I? '2:S" S'brL -.~ 'U .. ~l. '1.1'1 '1.3t O~ li~\ t1~ 1(0.2 UJ. .,-

111lo >Y,.,l .... ~\ 1..1.31 1.'l3 1.12 o.'}~'l i{.I"L 3'1-1 1\H--=t , nl~ So,..£.1~" -ztL\\ t 11, l<Jlo 0 .. '\-to L\_.c,, ~\ .. "f io~7

t1 '-' o 'St>.L "·... 1'21 .. 'is-- 1. l 1 1-ll- 0 "1~4 it .. \I- 1o-1 )c:G.G:.

I 1 ti4s- ')t~tt.t. 1.\., ~/ '1\.'-tl ~..o; 11 -l1 o~1~1 S.?15' jo .. c \o'S'.i

4 1 'tol'/ 1':\-'S"O )oM.~\,. 2,rJ J)v 1:\t..i 1 .'1.'1.. CLcttt'l ') .. 'l\ '2q.~ 1~.£,

L.f}~}tt.tl( \ooo \oo...t"'~· ,~ • ..,,.. b- '-' ~ r;,.q1 ' t.o1.1 S"Lf-r SI-J S:<l\t1tnhr ht-<.1'\ ~{j,r IJ"~. r q (_ litv lf'.o<j ~ i 1,S".

~ ~/ - 0 RJA~ ~~o~d ~-f 17Sb l....liv.t u~/1 h-~1-1 cll"

\ \ I -..J

• The 5labillzatlon Ctllena for each fMIId parameter (three consecutive readings Qlllacted at 3- to 5-mlrule lniii!Yals) is listed In each oolumn heading.

OBSERVAT10NS/SAMPUNG METHOD DEVIATIONS ------"So_=-<ptFJ<ok:L:=::...J.( ___________ _

O.\QC'DE_~-~.I'Ii~&'S~APP201Nt-ISAW\V..II\Ac!PIIO\ ..,..o .... C>o.J ....

Page 94: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment AA-1 GROUNDWATER SAMPLING LOG

Well No. __ 6-:~---"'-""'_-_J..f __________ _ Key No. __,ZS::::,_,1:.:.7-::.._ _____________ _

PID Background (ppm) ----70-:·:::-"--------­l>.e>

Well Headspace (ppm) --------------

WELL INFORMATION

Site/GMA Name

Deployment Personnel

Date!Time

Weather

Sampling Personnel

Date

Reference Point Marked? {!p N

Height of Reference Point __ T..!_"t:-=,.,C::::.._ Meas. From __ /W1-___ _ Well Diameter ). '

1

Screen Interval Depth II S1 - Zt .>7' Water Table Depth I 2.1+, '

Well Depth 2H•' "·~'!-::. 21,&2--

Length of Water Column a,f{. '

VolumeofWaterinWell f, 5 jttl

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOC: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y {f)

Meas. From l X C

Meas.From ~ Meas. From-~-'"'-----

Additional well maintenance needed? Y (!j (if yes, describe below)

c: tCUsrd.

Required

'II!J)

PAGELoFl_

Sample Time __ _:l_o_l_'> _______ _

Sample ID -.::D:.t(>("'-"~'--'-"'-'-'-""---t.f:..:_ ____ _

Duplicate ID --~I'V''-'TA-"'--------

MS/MSD ___ l-1--------Split Sample ID __ __::J/:._ _______ _

Analytical Parameters:

VOCs (Standard List)

VOCs (Expanded List)

SVOCs

PCBs (Unfiltered)

PCBs (Filtered)

Metals/lnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

PCDDs/PCDFs

Pesticides/Herbicides

Natural Attenuation

Other (Specify)

Collected

PDB Information

PDB Length/diameter __ __:\---~_11___,/.:...::::i-_'_' ______ _

Water Quality Meters Types(s)/Serial Numbers:

PDB Material __ __,l=b...:_Y"----,=-------­PDBs Filled ------"-~-ac:__i __ F:=ie=ld.__---­

Tether Assembled ----.-T-.;La_b_i .._r!Jjl~e"'-----­V,•t

lf):t: t:i'( >' f-/.,e-~ '2-'-f 'iN'; c:>:Ut?-=:> LH .l.tj

Line/Tether Material diameter---,.-~/'-"-~·---,--------:

WeightType/Position 5.J...-. f.9f ;;4-J · ~ ~J)t.3

PDB Collection PDB replacement Downhole Field Parameters

Deoth GW Aot earance Number of PDBs at Deoth Number of pH (SU) _ _:(,:.:..·_:_IJ-_0 ____ _

feetlbmo\ Color Odor Collection DePth (ftbnlPL PDBs Specific Conductivity (ms/cm) ---"(J'-'.-'q"->_,1 ______ _

''-i C&l.r!.>'> ,..,~ .,tk-r I NA- ~ ORP(mV) _ _,_I_t.f-_2_._o _____ _

/ / ..------ Temperature (°C) _ __!.7,:_,_, =.5..;:.3 ______ _

d ~~ 'f/&/N

~·"7_ ;zv:---DO (mg/L) _-.:.~l.f.:..:->:..::~,_-----

Turbidity ___ ('-'3'-'.-"0------

OBSERVATIONS/SAMPLING METHOD DEVIATIONS

x;.-,. .. IJ<$bfrc. t?""i· All .,J.._r ~

!),.,;.. k y.dy- t/ . .l.•' ~ lk df 4,'-'- c" r-E'Q:>.V-<--/.., T' w!2~·7 ro<wt-.J rrPth.J.J {:<-...., '"' ?;h Ysx.,, I(P: ,.tr.,...J .J, er • .t.""" 4tr to,....(

SAMPLE DESTINATION

Laboratory: ___________________ _

Delivered Via: ___________________ _

Airbill#: ___________________ _

G:\GEIGE_Pittsfiald_Ganera1\Reports and Prasenl:otions\FSP..QAPP 2013\07-13 Finai\V<JIII\Appx Ml

AttaAA·1.xlsx

Page 95: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment D-2

~

GROUNDWATER SAMPLING LOG

WeiiNo. Oft+·"'v-r;R. Site/GMA Name __ _~.Q~A...:~::.;A-.:...:.5 ______________ _ Key No. Aas4r z.rr;z PID Background (ppm) ----'-NA'+· ____ _

Sampling Personnel _ _.:C::,.•:..;rc;;:..::;:"':..:~:.:~:z_ ______________ _ Date _t.+"2/.../.L'T..£.0..:;t:z.lf= ______________ _

Well Headspace (ppm) ----~------

WELL INFORMATION

Reference Point Marked? {J) N

Height of Reference Point _ ___,T_IL:;-_ 2. 'r Well Diameter _ __:::__ __

Meas. From _T_J:._C. __

Screen Interval Depth II -2..£ ' Meas. From TZ:C Water Table Depth /I. ~6'" Meas. From ~

Well Depth 2..1.'>'1 1-o.o1= 2'·6

Meas. From~ Length of Water Column £1, ·z 3 Volume of Water in Well i,S$ ()l J

Intake Depth of Pump/Tubing f r Meas. From Trc..

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOC: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y @

Weather -~02JiljH:t;Jco.~rf.+-"""~"'~.ls•>.<:C:.._ ____________ _ 7

Required

~)

'J2

X

Y)

)

)

)(>

Sample lime --=~~~ D:::.lf5..!L·-=:.:lf!.J.h~fs'.t..:/J...:lf!.___ Sample ID ...l.-:O::..!A..!.r::..tf_·.;.ftt.:.:w=:--=-!>..:;R:..._ __ _

Duplicate ID ___ __:tM~:.._ ____ _ MS/MSD ----~+:-------

Split Sample ID ___ _.::. ______ _

Anaiy!ical Parameters:

VOCs (Standard List)

VOCs (Expanded List)

SVOCs

PCBs (Unfiltered)

PCBs (Filtered)

Metals/lnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

Collected

<I>Di¥ )

2>

Additional well maintenance needed? ~ g;;;;? (if yes, describe below)

!lad.> t1e..,. T-pl-,,

)( PCDDs/PCDFs

Pesticides/Herbicides

Natural Attenuation

Pump Start Time 15/2 'Y) Other (Specify)

5.1{4-~ EVACUATION INFORMATION

Pump Stop Time 1711-'!1 Evacuation Method: Bailer ( Bladder Pump ( Minutes of Pumping /3'1" Peristaltic Pump (Y') Submersible Pump ( ) Other/Specify ( )

Volume of Water Removed II Did Well Go Dry? [f) N

Pump Type: ~(;;.,~'f.f""~,fl'//)!.."2-!f= ______ --:""--------:--Samples collected by same method as evacuation? (]J N (specify) 'ItO:::> Jo p,z S...,p4} L1y f

:J 25'r;z I 1-l 1 ~ PD/3, ~· · eter Type(s) I Serial Numbers: 0 y.;: /} )0 4A ~Icc{:. s£._ Q 2/ oooo2 8- 3 2 y.j~

02-Pump Total Water Temp. pH Sp. Cond. Turbidity DO ORP

Time Rate Gallons Level (Celsius) (mS/cm) (NTU) (mg/1) (mV) fl'kimin.) Removed (ftTIC) [3%]' [0.1 units]' [3%]' [10% or 1 NTU]' [1 0% or 0.1 mg/1]' [10 mV]'

/'520 !SO /ll.tf.? /2./C{ ;t),r£1 tVM N'.M ~Jg' f'V'fr! t'V/h )5 3o I 5o 12.52 Zvt (o.qS 0. 3211- ]. t.t5" ~.36 - '3!5. '+ I53S 1 S"o P·r~ 71- 7oC> Q.'320( '3,/C( 5,2..0 -370(

}5" L+o loo l2.qc, 7-;z 7/o o.32lf z_-:;zq 2Jf'+ -5&.5

'5 Lf5 -frzro /..ioo J3,2 0 ?.& 7.(2 .. 6.332... 2./ y }.qq • ~?. '

I 5 S'o 1-hlo /3.57- 7.5 7o& (!), 3.;? 7.-t7 2.H'3 - }?, 2

/555 !+oo 1!1--.o ;z- 7.5 7, oc.f o.3bo 2-0'2...- J,JZ5 -32. q /C:,oo lfoo l! II+, 7--/ 77- 7.[6 e:J.35' 5 1. 1-.t , 55 -3 J.f; :L

.. *The stabiliZation criteria for each field parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading . OBSERVATIONS/SAMPLING METHOD DEVIATIONS

!'52> fiov -J!--..,,'1 uf/ q/J.rk/, Ga~ 4'1 £.,'5fa,:c.( cc.clt~v 1 >veil pe.u.Jkr/ @~o,..,;;_ Sfvb -.(. IS"H-.5"~ io a W....el .Jo r ... J fl¢""rl- 61.p h.tl.c.r) IU~":;;a. :r·~,-:J,y, \ f"a& c<P/vbs, o• ehr, h\,.J ,Ovg" clo«'// ,~ c).._r-

SAMPLE DESTINATION Laboratory: _____________ _

Delivered Via: _____________ _

Airbill#: _____________ _ Field Sampling Coordinator: _ _.:::~::::l....:::::::.:...!l;;~~:.._---------G.\GE\GE_Pittsfield_Generai\Rillports and Presentations\FSP-QAPP 2013\06-13 Finai\VoiiiiAppx D\ Appx D • Atta 0·2 .xis

Page 96: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

, __ ;-

Attachment D-2

GROUNDWATER SAMPLING LOG

Well No. oPo.-- 11fv-s-g Site/GMA Name -----=o~P,,...:r:.._A-5_::__ __________ _ Sampling Personnel --~C.c:.,' KV:,;....:.::"';;:S.:::r:.>:..:.f ____________ _

Date _ ___:cl-t-'-/./:.._--r,"-/)L:-JI(-,__ ___________ _

Weather (JW!C¥!~ .... ~#~/ l.:,~t ~'"•"'

WELL INFORMATION· See Page 1

Pump Total Water Temp. pH Sp.Cond. Turbidity DO ORP

Time Rate Gallons Level (Celsius) (mS/cm) (NTU) (mg/1) (mV)

~min.) Removed (ftTIC) [3%]' [0.1 units]' [3%]' [1 0% or 1 NTU]* [10%or0.1 mg/1]' [10 mV]'

}bot:; (00 /I'M Is: .z. "'1. 7.'ts"' f.o; 0, JfO 2. 3C( /.2-6 -JJ.f; 7

I bib J..k>o j5. 4-q 7.q c,.cr-1- 6 . .35'/.f' }.2...0 l.o \f" -3J.I

16 2. '5 4-o o I' . .r<t r. ., t'.C{/ (?. J)t./- 2.3o /. I 1-f- -3 S:l

lb30 loo 17. 3C( &'.lf ,,qz_ 0.36{ 2· 3/ j./ " - 14-. "(

1635 ~ IY. . 58" &'· '> (,_q 1- o.J65 j,J5 1.17- -33.o

/b5o loo I~· ttlf g,~ (;.qtf (!).351 2.S'f- 1.2-3 -52.0

(6£'5 Lj-cO I q. o '> (?.If' 1.o'1- 03!.+( ). J-5 j. 2- f -3/,7

I 'foe loo Jet 1"1 f,&- 7.ot+- 0.31-#f- 2.11 ).~ -3o.q

\1-ot; \...t-6)0 [Cf,5tf ~,If Y,o;z (!).335 l. O"f. I. '3 :3 -Jo.q

)~0 100 zo.o 2. g,g -1,22 6.2&{1.... 1.o;, j. 87- - >o. I

1115 I So 2o.l'1- fs'.5 7. 1-l ().2q '1- 2.0~ [.~lf - '2fr· 2..

t12..0 [t90 20.2 5 8., J,22- 0.2."18- 2.5q (, o-q - 26. c. )12.5 loo 2o, ~?Z ~If {,, C[2... o. 38-1 72-r ,,,2_ -2.0,g

rt>o too 2o.So q,J-'· C{C(

o. ]6 '1- ~.31 l.'i/ -zq-, g

trJlj IOO 2o. 1- J 8'. "1 7.13 o. 32- r: 2.5o f. t''f -26, 'T ) 1- 1.1-o l.fe:>O 20.CJ1-f f(". 7- 72-2- 03:>'+ 2.66 J. Jl3 -2&. r-11Y.3 )oo 21. 3q <6:~ 72.5' (!),.U 1 LH>q_ I-6Jl -26.3

t 7-lf(, loo v 2.. 1• 1+8 ~. 1-- 7.tq D.}.C;q 2.2- 3' j.J·3 -2Jf, 3

11-*1 too/ort jJ ""''' J,i

\;:Jl+i:;' /00 S~v.pl-e.. 10,5"1-f /,'7' G,~l CJ,Jy 3 !]..S l, 71:>' lo I, e~

! 1 'i;l- ? ..... p ~ff No.J.. p ... ~"""'-krs -i"k;..., w-: 'I ,. {tow 1-·o., 4 !'o}/ d· 11~-;:z:

-------------------

~

A / p

---------------

~ ~ ~

:.:;----

-----!----'"'

-----------~ ..

• The stab1hzat1on cntena for each f1eld parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading .

OBSERVATIONS/SAMPLING METHOD DEVIATIONS 4-/- 16/f ,'v)-/.,ki_ fo<,,.,. .. ) .Jo jq' fo111{f

rale rcs.-..J d«<c io J...\/...,•q[ dt..ydo-.' 4l- /6/.fb ,..,t.,k_ lo"o.J 1o 2o.S' r b ... e

G:\GE\GE_Pittsfleld_Generai\Reports and Presentations\FSP..QAPP 2013\06·13 Finai\Vol IMppx 0\ Appx D • Atta 0·2 .xis

d~t.e.. -Ia r!J.v .lt><A, klsi pv,, d~ lo ~h-....

111ft( 1../<it( 17·

Page 97: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment AA-1 PAGE~OF_L

GROUNDWATER SAMPLING LOG

Site/GMA Name

Deployment Personnel C k"'"'H ( . I. ;t.te.rJ..-,

Well No. __ __::6"'. ~.:..4-::---""'--=-.,..._-..=5":...;R.~-------Key No. 2. )1 7.

PID Background (ppm) ___ _J,Oe:_·~O::_ ______ _

Well Headspace (ppm) ___ _,fl::..·_o;._ _______ _

WELL INFORMATION

Reference Point Marked? {9 N

Height of Reference Point __ .-!.../ :=;I.::C...::....__ 2 " Well Diameter __ =------

Screen Interval Depth II· 2.1 ' Water Table Depth lo $It

1

Well Depth 21.5 fc,>lf:: 2/ztt Length of Water Column _ ___:.I_,O:_•o.:'3L--­

Volume of Water in Well __ l:...,,_,8._-!-j'J.'<l..!( __

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOC: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y N

Meas. From

Meas. From

Meas. From

Meas. From

Additional well maintenance needed? Y N (if yes, describe below)

PDB Collection

Death GW Ao1 earance Number of PDBs at

feetlbmo\ Color Odor Collection Deoth IS' I U:>lmrt-s1 "O ~JII?r I'

A ./ t/ d' ltJ/~1 '7//fd!f_

A L../ = 7 ---OBSERVATIONS/SAMPLING METHOD DEVIATIONS

{Jr:·;s/.1-"' ib;t>- tfl( o1Xr f¥~5 (""..,

SAMPLE DESTINATION

Laboratory:--------------------Delivered Via: ___________________ _

Airbill#: ___________________ _

G:\GE\GE_Pittsfield_Generai\Reports and PrMentatlons\FSP..QAPP 2013\07-13 FinafNoiii'Appx AAI AttaAA·1.xlsx

DatefTime

Weather

Sampling Personnel

Date

Weather

;VA-

T:t.c...

l

Sample Time __ ..:.lo:::.._:>_:o:.._-::--:-----Sample ID _:::J::!...:L......:.=.......::...!=o-___ _

Duplicate ID ---':;.:c-------­MS/MSD ----+-------

Split Sample ID __ .....J!L_ _______ _

Required AnalYtical Parameters:

( )cJ> VOCs (Standard List)

VOCs (Expanded List)

SVOCs

PCBS (Unfiltered)

PCBs (Filtered)

Metals/lnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

PCDDs/PCDFs

Pesticides/Herbicides

Natural Attenuation

Other (Specify)

Water Quality Meters Types(s)/Serial Numbers:

l("t: 1/'t , H~4 :Ut»p <;/ o.zta= ?§}~"\

Collected

PDB replacement Do wnhole Field Parameters

Deoth Number of pH (SU)_.......:.(;':....:._:H:.__ ____ _

lftbmo\ PDBs s pecific Conductivity (ms/cm) ---=O::c-..f%~1-:.;lf-!...._ ______ _ /'1<.4-- IW'r-

---v ORP (mV)_~I3:..:'_·:_5 _____ _

Temperature ('C)_.:_?..:_. '~C ______ _ - DO (mg/L) __ O:.__' 77..,_......,-:-:-----­:Z$, <2 Turbidity _____ ~t/:_. ____ _

f,~ 11f> re"""""t ro. ~ f-' k [rc. lwW)/y cdf,.!J & ey:.,,,'JJtk.. ~~ /o ,..,.,,

Field Sampling Coordinator:

Page 98: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2

GROUNDWATER SAMPLING LOG

Well No. i"') rcA /./11 /;j, L Key No. )l'lt,')J..t ! PID Background (ppm) IV 11 Well Headspace (ppm) /;J kJ

WELL INFORMATION

Reference Point Marked?

Height of Reference Point

Site/GMA Name -----2Cc:.'--:~o<l_ . .;..f.-::.d.:...:..::+si=t·;;,'.:'~&A..:......:D=-ft.:..-=..4

...:A_,::::.' _______ _

Sampling Personnel Q B L 1 \S:P Date £)1oj1c.l_'l

Weather lj c(' "> J ''"j

Required

( ':S (

Sample Time ---::-=:/=:<-')i'2::.<r_,_,..-;-,--­Sample ID ---IO..Lt:.P~Cwlk~-~A..:....:::::IU::...~...Jba-­

Duplicate ID ----------­

MS/MSD ----------­Split Sample ID -----------

Analyjical Parameters: Collected

VOCs (Standard List)

VOCs (Expanded List) "'""I('. Meas. From __ _,_ \_-__ tZ. ) svocs

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOC: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y ~

(

(

)

Z.>

i

i z

PCBs (Unfiltered)

PCBs (Filtered)

Metals/lnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

PCDDs/PCDFs Additional well maintenance needed? Y ® (if yes, describe below) Pesticides/Herbicides

EVACUATION INFORMATION

Pump Start Time _O~.£..t].L.!.li0"'--­Pump Stop Time .......~1'-!-1 .::l4..J..O!._____

Minutes of Pumping _.!I~~:L.!.~~­Volume of Water Removed Y!.J56L

Did Well Go Dry? '1J!)

Water Quality Meter Type(s) I Serial Numbers:

Pump

Time

Total

Gallons

Removed

Water Temp.

(Celsius)

[3%]'

Natural Attenuation

( ) Other <rify) \ !) s:_. ~··,

Evacuation Method: Bailer ( Bladder Pump ('') Peristaltic Pump ( ) Submersible Pump ( ) Other/Specify

PumpType: !!,(£!) Kiwht·i>"'.,~~J~f'5o li"i"~ Samples collected by same method as evacuation? Y N (specify)

((>< VJ., L' i,,.,~ l (._l1(;,q)

pH

[0.1 units]*

Sp. Cond.

(mS/cm)

[3%]*

Turbidity

(NTU)

DO

(mg/1)

[10%or1 NTU]* [10%or0.1 mg/1]'

*The stabilization critena for each field parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading. OBSERVATIONS/rMPLING METH9D DEVIATIONS

r/');t-\ .. er,J Rt).;..l fY'a"' ?....6-5 c ks/ '""t!J ocJ .. ;.rloJr.

SAMPLE DESTINATION

Laboratory: ____ __::_$=· _.::G-~'---------Delivered Via: -----.LU...!..~":::1_:::.;,;>1'::_ _____ _

Airbill #: ______________ _

G:\GE\GE_Pittsfield_Generai\Reports and Presentations\FSP..QAPP 2013\06-13 Flna!~VoiiMppx D\ Appx D • Atla D·2 .xis

Field Sampling Coordinator:

(

c

I )

"Z.-)

( )

)

)

)

ORP

(mV)

[10mV]'

Page 99: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment D-2 7- 2--

PAGE_OF_

GROUNDWATER SAMPLING LOG

Well No.-=()_,__~.=....::· _~_fiA_lJ_·C:,=--- Site/GMA Name _ ___,C£'::''-'~:o:---'-?_,'-=f:::-J$""'--'..t-'-i <.::_:l,_e-_1_6_ft:4,;__."_;}:..._ ___ _ Sampling Personnel _ __;a4-ll.:lR'f-{--'-' ...~..n~p __________ _

Date _ ___::4['4-!lo"'tl?~.v::;,·I,:::J;_,-___________ _ Weather --..::'ifLD~;,~_-r--::::$..-=nr!71(1L-----------

WELL INFORMATION- See Page 1

Pump Total Water Temp. pH Sp. Cond. Turbidity DO ORP

Time Rate Gallons Level (Celsius) (mS/cm) (NTU) (mg/1) (mV) (Lim in.) Removed (ftTIC) [3%]* [0.1 units]* [3%]* [10% or 1 NTU]* [10% or 0.1 mg/1]* [10 mV]*

"b'l')D 'S'ofi,t}~,~ .ifrM ! 1-j. 7?..- gs,1. -1 _,. ?.o i '61'1 'lj_"l... IIJ:1:_ 30v'i! t'ts-s- Tor,l ...,~ H 1~ 'IJ.'Z... 1. 3o I '6 f..?'i q_ ·:n (o. 11 ?I. I.(

l 00,:) -st. f1 L "''" 1'1 1l <6.:-t 731 i 'ii '57 E\ . .--., i) ,._ c1 :'t.i 1Z-1 ibO") So,.,L. "''· I'{ 11- q, /--1 7-3J /'tli'L ·1.10 '"1 .. &1 15,{ 1010 sc,,l ...,,,... 1'1 11- '1.1 "'13'-1 1'61& "={Q& ,.,_ '?!] 37. I IOi')

~' 1!-f tf- ~,) 9-31... I~ 1fi! (;, q t..f 'Lbc> ]~]

lo2o t4-:n- 4; ., 11& 1'014 ~S] '1-r,o 4().Z .>

\o·1&~ i<{"r-,,.,L A• "' ,I/ ~LJ. Ff 1SA j.1.c; 14;/"Z.. $ ."}\ ~'l7~ '-/U

lc?) 'j"Oot,L "-.~-~ I{' l] t'L,< 1 .5~,,.,r:J,," il4o ~,.£), .. ;; ~

,J i 'fi>t't fl I 'h SC<A--di !"\ (b t'-:>( Ve-&

I I -' I I

/ /

/ L_

v v

v .a 1./_/

I~) I/ v y

/ /

/ /

v /

v /

/ 1/ *The stab111zabon cntena for each field parameter (three consecutive readings collected at 3- to 5-minute intervals) is listed in each column heading.

OBSERVATIONS/SAMPLING METHOD DEVIATIONS ---'fer~,,~f.!!~+l-------------------

G.\GE.GE_Pittsfield_Generai\Reports and Presentation$\FSP-QAPP 2013\06·13 Final\Voiii\Appx 0\ Appx D ~ Atta D~2 .x!s

Page 100: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment D-2 PAGE_lOF 2. GROUNDWATER SAMPLING LOG

Well No. OPM - row .. '7 Key No. 215.87

Site/GMA Name ___ .!iJ!O:...~.PeA~~/-G..!!.IM.=.u:A-'::4:-L-_______ _ Sampling Personnel __ _.6H~llE.~IyE:He:tFZ::n..L.Cu£..._ ________ _

PID Background (ppm) ....lN~f\.1+-------Well Headspace (ppm) _._,N ... M::..!._ ______ _

WELL INFORMATION

Reference Point Marked? {y) N

Height of Reference Point ~ ¥1& Meas. From ground Well Diameter 2 11

Screen Interval Depth l"f40 .. 21f,lll.>Meas. From .,BL!&O....,!:..--­Water Table Depth \5. 5~ Meas. From ~11(.

Well Depth 2.,1f:.tl() Meas. From BGS Length of Water Column

Volume of Water in Weii----'---''-:L--3F"'

Intake Depth of Pump/Tubing__;-!!!=.--

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOG: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y ®

Meas. From -eM'f TIC

Date --~~I:L.LL'l~.:.L:x....--..,;;;r.;=----------Weather __ .c;()V«~u~~L.!!!!90:11._;~5...u.6L•...:..p ______ _

Sample Time ~Q9oL.L:qo~l....--*.J..J.;/8!=!:.1-!IIw4~...-_ Sample ID _Q"-LLe:;:.::..~oo<A!!:L::~~M~iWu..::-:...'1-L---

Duplicate ID ------------MS/MSD ..:-:......:. ________ _

Split Sample ID ------------

Required

( t) ( )

( t..) ( )

Ft~c::~ ( )

( )

( \ )

Zl

Analytical Parameters:

VOCs (Standard List)

VOCs (Expanded List)

SVOCs

PCBs (Unfiltered)

PCBs (Filtered)

Metals/lnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

Collected

< PD!~ )

2,) )

Zl

l

l ) Zl

Additional well maintenance needed? v{E) (if yes, describe below)

PCDDs/PCDFs

Pesticides/Herbicides

Natural Attenuation EVACUATION INFORMATION

PumpStartTime \55S Other (.Specify) SAAK'!de.

Pump Stop Time ,, $(@ Evacuation Method: Bailer ( Bladder Pump (

Other/Specify ( ) Minutes of Pumping \'Z.I Peristaltic Pump <)C ) Submersible Pump ( )

Volume of Water Removed -.J 6 ,..\loftS+ ~4!$ Pump Type: --t!Gt~apmlllt"~!..!~~Z..=-------=::-----....,---Did Well Go Dry? 0 N Samples collected by same method as evacuation? Y (g)( specify) V(JCs. OIJ~ "1

::>N! UJt025'18 atcoP 'Pt>S Water Quality Meter Type(s) I Serial Numbers: 'lSI Pn> piLC& A a, ~ -i'l>rb•diN\'e~ St-1 t O'll oooo.z.M2.q

~~~*IZ:two.W 1-tvd 46 Pump Total Water Temp. pH Sp. Cond. Turbidity DO ORP

Time

~ Gallons Level (Celsius) (mS/cm) (NTU) (mg/1) (mV)

Removed (ft TIC) [3%]* [0.1 units]* [3%]* [10% or 1 NTU]* [10%or0.1 mg/1]* [10mvr

153& too NM .... 5.10 NM ~ ·-, , t6*t> I Db /{,,()& 'i.S ~.aq a.r.-tJftJ 8.6t=. 1.3'7 qa.s 154-5 I«> 11...16 ~.0 '-· 'Z,(l a~s• ra.& .cg.a! ia.s \560 100 I&:..SS .,,q '-·85 '!''lit ji.Z. ~.0( t:z..s \S55 100 \t..&tS ,,q Co.J! 33111 Cf .c.. 'Z. '1.tc, t2..J J-..oo too ' 1&:..67 f7,q t...sc. ~1~!1!. q:a.o '7.'f1· '&l.'f ICt=tC6 scro t'ViC ~.(. c-.&Jl 3:71!. Q:z.c. "-~&. 91.0 lc-ao 1%5 • II 11.52. !.1 {..% :J:tn (...;;2. ~.M '1q·" ..

*The stabilization cntena for each field parameter {three consecutive r~adings collected at 3- to 5-minute intervals) is listed in each column heading . OBSERVATIONS/SAMPLING METHOD DEVIATIONS I ~d Sl d- USSS.

NM= ntt muw.wd. SAMPLE DESTINATION

Laboratory:_~,.,.,"""'L....----------DeliveredVia: _____________ _

Airbill#: _____________ _ "'" ... , ..... """"''" .. " titf:{~ G:\GE\GE_Pittsfield_Generai\Reports and Presentations\FSP..QAPP 2013\06·13 RnarNoiiiiAppx 0\ Appx D • Atta D-2 .xis

Page 101: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2

GROUNDWATER SAMPLING LOG

WeiiNo. ope~ •MW•1

WELL INFORMATION- See Page 1

Pump Total Water

Time

~ Gallons Level .

Removed (ftTIC)

it.. IS aao NM 19.08 \Gt'Z.O 12.5 18.80 !tc.2.5 a to '~·~a 1&.30 (06 ICI.ot l~3S 3'10 lq:lo tr..&S.O roo lct.qo lCol.f.S 3'10 2.0.06 lt..So 3'10 ZJ:J.IS 1~55 100 ZJ.IO

t100 3!0 Zf.(;)6

1'105 IOO 2.1.10 1110 e,!.o 22 .!2. 1115 106 2.2.30 liZO ~0 2.2.'<)

\1l.S too :zs.oc 1'1'30 ~ .i.?b.So ,.,~t; ~3~) ,v T>rt'l@

Q

lfl35 goo 15.3'f

M40 S"""""D A-'b

~ ~

~ ~

G.\GE\GE_Pittsfie)d_Generai\Reports and Presentatlone<FSP.QAPP 2013\06·13 Fmai'\Vo! !1\Appx D\ Appx D • Atta D·2 .xis

Site/GMA Name _,..O:.L.P,..t..'-'A_,.{_..6=M..=::!A-...J&l.__ _______ _ Sampling Personnel ...-...JSM~~'-':.1-J~...._---------­

Date _4f...LL1..L.LJ/ 11..:.9:-.---=:=-c:-:---------Weather --!!!()£l~""""--"'=""-!....,i~O.u5........_,11 S:,__ ______ _

Temp. pH Sp. Cond. Turbidity DO ORP (Celsius) (mS/cm) (NTU) (mg/1) (mV)

[3%]* [0.1 units]* [3%]* [10% or 1 NTU]* [1 0% or 0.1 mg/1]* [10mV]*

<l.5 ~.so aJt-11 3.~ ,,,.,£> '1'! :1 ~ .. "·~ a.•as l . .sq ~-2.2. -,.e.a t.'l (,.15 2..'11'5 VIZ.. s.as "N·! i.2. '-:?'l 2..t~ 1.!1 '!.o& jq,LJ ,,a, c-.11 2.s1cg l.SLf ~.-g; f<i·2.. 1.2. "·'Co a.7act f,'fS 'g'.A.fq 1~.3 q.o "·"2.. 3:11'1 1:7LI «iA2. .,.,,q q.o "·cu a.c.t2& -z.r'i '·~ «11r.O 1.3 Ct:,.q a.&- a.r..r1 l.f-.32, ~ ..... , ;w.o ct.l "·'* s.""~' !.f.. aB og,qo 1'1.q '!..4 "·''2.. 3.toC\ z.c,a 1.C.2.. ,, .... q.r C,.12. !Mil'f 2.58 'Lz.o '1'l·2.

~-· c,.c,'1 .Z.&.kU 2 ·'"' '·"'i 7ct.7

q.l ""·'-! 'a-6'31 ~.'52... 'L<16 .,q,&4 ~.~ 4.58 3.$&"1 l.qs '1.~1 tro.t q,z.. Gt.S't ~·'-'5~ Z...Sd 'f>.'\C, .,q,4

2a.aq ..

%J b.S"- ~.581 (o.o~ '7.q$ ~3.7

-------~ ~· ~

/. ~ =----------~~ r-----~

1-----

Page 102: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment AA-1 GROUNDWATER SAMPLING LOG

Site/GMA Name

Deployment Personnel

Daternme

Well No. ___ __::6=-:~;;--t_-_,..,_-.._~_-:;z ______ _ Key No. __ ___,2"")-"3'-"7-__________ _

Weather 50$"'E _, ClcJ'

Sampling Personnel c I fGsc. r Q . c """'(., PID Background (ppm) ___ __:::0:.._·...:0:._ ______ _

Well Headspace (ppm) ---~.::_· .::0:._ _______ _

Date 5'/t~/11-f'" Weather OWrc«.,,..- SO$ "P l,o,tf ~,,../

WELL INFORMATION Sample Time __ .::_11:.._4-o.::.:::. ______ _

Reference Point Marked? 6) N

Height of Reference Point --~T'-:I:=--c......-__ Well Diameter _ ___,'2-~1(---­

Screen Interval Depth ) 11-: o ,_.- 2 jj,oA- '

Water Table Depth_!..) .:..."·~/--''3:.__' __ WeiiDepth 2 3. 'S/.ft>.JI/ ~ l3,7?

Length of Water Column __ 1:.:¢:..:':..:(,:,::2-=---' __

Volume of Water in Well _ __:l..:.'...:f-:._.gf}«)oll.'l_

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOC: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y <fD

Meas. From --'/1/:..__A-__ _

Meas. From T'I C.. Meas. From --,­

Meas. From _---r-_ __,._ __

Additional well maintenance needed? 6J N (if yes, describe below)

!).tJ~ rr .. c~ -fr,... r.p.,Jl.,.Jr.

PDB Information

PDB Length/diameter ___ ~---L--=--------

PDB Materiai ___ ..~...:::...,:;.,.....--------

PDBs Filled ____ _J,.,:_:_-:::?::s=;c-----

Tether Assembled -----:-:r""i7:.:..:_J'-....:£ ____ _

Line/Tether Material diameter __ ___,:..!!.. _________ _

Weight Type/Position -~7/:r:"!;·.:,:•l.~-s~o;:._..!S.:::'Iut=,.;.· --~=f--=...:P::lf)~l]

Required

Sample ID ---==~-=__!_:::_ ____ _ Duplicate ID __ :._:.!:4=------­

MS/MSD ---f------­SplitSample ID ------------

Analvtical Parameters:

VOCs (Standard List)

VOCs (Expanded List)

SVOCs

PCBs (Unfiltered)

PCBS (Filtered)

Metals/lnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

PCDDs/PCDFs

Pesticides/Herbicides

Natural Attenuation

Other (Specify)

Collected

Water Quality Meters Types(s)/Serial Numbers:

Vq- "'*I ' f.J~t, U=l s-.1 O'UClxlt!> 1-812--C( I

PDB Collection PDB reolacement Downhole Field Parameters

Death GW API earance Number of PDBs at

feet(bmol Color Odor Collection Depth

tt' CCI/oD<~ I'\OW<l'l ..- fl /.. /,,

/Z ~· 7-J 'f

~~ ---OBSERVATIONS/SAMPLING METHOD DEVIATIONS

&ttn:l) vrJ.r pr-;;.,t,t,., pc.f. '~'' ofl..r r~Wr.h

,

SAMPLE DESTINATION

Laboratory:-------------------­

Delivered Via:--------------------Airbill#: __________________ _

G.\GE\GE_Pittsfield_Genarai\Report& and Presenta.lions\FSP..QAPP 2013;07-13 Final\ Vol H\App;< AA\ Atta.AA-1-Xlax

Death Number of pH(SU) C. IS' lftbmo\ PDBs Specific Conductivity (ms/cm) r. '):>.j1

('/'A- M}-- ORP(mV) , >'I-. 3 L,----- Temperature ('C) e./q

DO(mg/L) t;p.(

Turbidity 12 0

Field Sampling Coordinator:

Page 103: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2

GROUNDWATER SAMPLING LOG

wen No. ____.;:();.J.{t=· .:....:.A~·~-JVl--:--::-&t/~-.......:~::..:.R..:.....__ Key No. ___ __;M:....:.:1¥J:;;&.;'~r...,.......,..,.-----PID Background (ppm) __ ___,f\Ji-:-':;ci1~--­Well Heedtpace (ppm) __ ___,f,J"--N\-=----

WELL INFORMATION

Reference Point Mariled? ~ N

Haight ol Relaranc:e Point ]"';t.c...._.. Maas. From

slta/GMA N•m• -~C..;;;E:--:-P...:.• 1.:...-f:.:~~(·:..:'c;..;.;\J;....__o_~_c_A.::.s _____ _

sampling P•rso~:~ ===~a~~~:f~9~\~®:~w~====::===::::==:::===== Wee~er -~ro~LJi~\~y-'~·~·~1~1)~'-~S~C>~$b_f ______ __

Sample Tlme --::~!I='I..::S'"":----:----::-:-::::--­Sampla 10 .......::O::....~P~~;.;.;":...·;..:;fl~v:...-..;..%..Q..Je~-

eupllcatelo ----------M~o _________ _

Well Diameter '"\'1

Screen Interval Depth ).!o ·ll•ID Maas. From --::::1':-;\C..;:::.-WaterTableDepeh IS'• ~ Maas. From _.,..~\C..'7--

SplitSampleiO ----------

Well Depeh 2t.~ Maas. From _T....a....:.t,.C."---Length of Water Column \:(}, tt v Volume of Water In Welt To. l ~;j/t

Intake DepCh of PumJI(Tublng "Z ~ 1 Maas. From _"T..:...:~IL __ _

Bef0fi!!C8 Polnt lclenttrq!!on:

TIC: Top ollnner (PVC) Casing

TOC: Top of Outer (Protective) Casing

Grada/BGS: Ground Surface

Redevelop? Y ~

AddiUon•l wellmelntenence needed? G) N

EVACUATION INFORMAT10N

Jlf yes, desaibe below)

{l)f', s 41 lieu f~k (<.Jrrc .. ~ bl'ot ~s f<.)SI',J.

Required

'.J> ( )

I"Z....l ( )

( ~ )

' )

(

I I I

( z. )

( )

ll)

a!!i!IXIililll Ellllllllllll!lii VOCt (Standard Us!)

VOCs (Ellpanded List)

svoca PCBs (Unfiltered)

PCBs (Filtered)

MetalsJlnorganics (Unfdtared)

MelalsJlnorganics (FRtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered) PAC Cyanide (FHtered)

PCODsiPCOFs

Pastiddes/Herblcldes

Natural Attenuation Other (Specify)

S..l{~ Evacuation Method~ Bailer ( Bladder Pump ·1){1

Collected )

• 3 &otJ (~)

( I

'Z..I

( I

( )

( "l,..l ( )

( )

(t) Pump Start Time 09 t. ') Pump Stop Time I Z1C

Minutes of Pumping _....;.l....;~_o __ Volume ol Water Removed __ ?~~-

Peristaltic Pump ( ) Submersible Pump ( ) Other/Specify (

Pump Typa: Q f p 1JkJ.J,. fU"~ Old Well Go Dry? V {!) Samples collected by same method as evaC:: tlon7 @ N (specify)

Water Quality Mater Type(s) I Serial Numbers: ,, ~s I= ~ 1J f' Rl l'lt'"J t\ 17.2'1_"2. £.1'., ... 1

I i!!~a. uJ,,, Pump Totti W•ttr Ttmp. pH Sp. Cond. Turtlldlty %~tJ~· ORP

Tim a (Celtlua) ..

Rete Gtllons L1vel (mS/cm) (NTU) (mV) IUmln.i R•moved JftTIC) [3%1' (0.1 units)' [3%1" 1110% or 1 NTU}' J10%or~ I!O mvr

O'lt~ ; Ia')..,£ '" \ trM 1>-"7& - - - - - -~q~ lCO,l .. ..... ito. Zo - - ... '-1. s- I - -OtJ'lS' IOOI'Il

. \b.'is' - ? ·' 1- -""" - - -

t)C1 '-10 1\oo_, • .,J ~~~- U' .. t.l l l G, }J'f 'i!b'f1 '1 .s 1 t~>.+ Zl.'-1

D"'i$'" I $o,.,l. .'1 11'1 "'·~' 1:1 ?.1<7 'l ~'t'ir q_,.,

~LI <'i.f o cr~o $"oML .... -..o\ 'b-'\1. t -3 1 .}q ~ l(i I"' q.o~ 'ill 7- 32-~

OttS""> lS:9~ I I 11 - ~ ' 7 .'6 1:z."Z.. Lf.t )) 11 II • 't "~-t

I Jta. 'Z. .-. .... I I

looo j t;"i> lljl. "''" w 1r-. 41- ? . .:( 1.7JI i3 ZJ l 'i.-r «ls'l ~, "17.~

• The stablltz.ation ai!eria for each field parameter (three consecutive readings colleded at 3· to 5-minute lnlervals) Is listed in each column heading.

OBSERVAT10NSISAMPUNG METHOD DEVIATIONS 1;-#-[ P'"U <e'..rg, ~• ~1 fi'>! f ., ... , .f--s., Iff ,t.rff1

SAMPLE DESTINATION

Laboretory·------------OetlveradVIa. ___________ _

Alrtlillll· ___________ _ FleldSampllngCoordlnelor: ...,~6::--.::(..~~~. :..e..-~~--1,;::------

0.\0E\O( .............. ~ .... •1'11:1 P~IISP..OIIIP 20t3'm-1l AMI\Vollf\A,pp.a Ol -D· ... D-2A

Page 104: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment 0·2

GROUNDWATER SAMPUNG LOG

SltaJGMA Name -IJ-~S:........!....P~.p...;.;:s::.!.f.:.:.ic.:...;.,/J~o.=.;..PO\~s,_ ___ _

Sampling Pal'llo~:: =~1~~·~=~~Z~c~~C::=:::::::::::::::::= Weather ~?':w.;•.L:.:f:o¥-y~s...o~":..::,"'t,__-=~:...::~=".:....F ______ _

WELL INFORMATION· Sea Page 1 ~JJ'- c W~r Pump Total Water Tamp. pH Sp.Cond. Turbidity ~~~~~ ORP

Time Rate Gallons Level (Celelua) (mS/cm) (NTU) (mV)

(Umln.) Removed lit TIC) (3%)' 10.1 unltsl' (3%1' 110% or 1 NTUI' l10%or~ 110 mV)'

\Q()$'"' /S"o"l ~:, r1.'11 1 -'1 1 :Z"' ~{p'3(, I "'.I ~'J .. <t) ~O.(jj

lOlO 'S' 0 l'td ,..: .. n .'\ 'i :, . \ 1 .7.') 't~S'1 I '1.1 lf> I. "1- ~~-'f lor") ~"'t~ .. l1. '\4{ 1.:\ 1 .1s- l\s-.~t.. -z..Lt 2. 11-, t.t1.D lo"Zo StHJ ~·" l t .'l'"f 1 .. ~ ":1.1.(, l(_t;r1 2 ~ .:z.. -~(,'1 ~1-~ \o'Z<) 5o rl../ .4.·, ... V{, .. OI 1 .. ) "1.7.'1 t.t41J t 1.(s, ceo:z.. 52., / lo'JO 'SoN. l.\\4. \'<. ~~ 1 .. tp 1 .. 1.-:l ~ !-\ l~ 1( .") 'lO.s ., <1)-{

lo'ls- 'lo~~tL ,:,/\ I( . QS' -=1 .. ":1 1.21 43'\~ 11.~ 7tt '1 sr.-z. loti o f)o ,J. ... ~ \ ~ .01- "l-16 1 .1"1 i.l!-1 II n-o 1lf.r:? ~(..t{

104-:- ~o~tt£ ""' l '{ ·O~ ~ . '6 71.1.? Ll.'l'b') 11,\ t'l.l- ~1,1./

l~o ~M. , ,.~, l< .o~ ~-' 1 .. "1.f6 ~.'J(., "':J I Lt .s- ~1.£..-. S<"$.3' IO$"<r 5"o,.,l .... " 1~ . l o 1.'\ 1 .1'1 \)"1) 17 .. f ~ 'f."?- 5"Cf.?

It \oo l<;o,..L ,.;.,1\ i"- ·lO ~ .t 1 .'2t( 'l.~Lf rs-.o 7fL I ffi .I

\ I O~ -OI'rl. .-'1.1.'\ 1'6-~ ll ;t . --:,.71( '-l,1Y to- j'!, .. \ f. 'J.t &o.?

l ll_e_ s-r.,.( ~~·, !I ' " .c$""

~ ;~ '7 . 2'\ '-t.l)O l6-3 '6o-~ , ,_z. l l f ~ ~on. .. ~'\ 7 \'f,.o'7 ( ."1.. 1.?'\ '1.1 ~ '~ . \ 1 'l.r (.,1.+-111") IS'o ,L " ·," g .. C,. ( "\ $ 4\ I'.J t tl.. .[,()10-.. lJt/1. - - - -

"' ~ ~

~ :,...--'

I I

-~ v----~

8/~ W'~ ~~~ v

~ /"

--------_,

/

/ • The stablllzallon criteria for each field parameter (three consea~tlve readings colleded at 3· to 5-mlnute l!llervalsl Is listed In each column heading

OBSERVATIONS/SAMPUNG METHOD DEVIATIONS

0:'4E'GI ... ~.~"*"III'CI~SP.QAPP2Q1J'(JI.13-f' ...... ~ l~a D\ ~D .. Aa.0.2 .ak

Page 105: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Attachment AA-1 PAGEl_orl_

GROUNDWATER SAMPLING LOG

Site/GMA Name OP{As Deployment Personnel

t+@/iu-' / toto

well No. ---::=-o--i{-_A-_-...,_~v_-_~_R ______ _ KeyNo. 2$!.?

PID Background (ppm) ---~O:::.:.·C>:;_ _______ _ Well Headspace (ppm) ____ e>::::..:-.:0 ________ _

WELL INFORMATION

Reference Point Marked? {9 N

Height of Reference Point __ T.L...fc-.===---Well Diameter __ 2=· :_

11 ___ _

Screen Interval Depth 7. {0 - 2 T.to ' Water Table Depth _!.:If._::. U>=--' __

Well Depth 2'.1no,1.1f _-z,,qt,. Length of Water Column 11, 7 t. Volume of Water in Well __ 7:.....:":_"7~yt'¥1..:..f _

Reference Point Identification:

TIC: Top of Inner (PVC) Casing

TOG: Top of Outer (Protective) Casing

Grade/BGS: Ground Surface

Redevelop? Y ()

Meas. From

Meas. From

Meas. From

Meas. From

Additional well maintenance needed? Y e> (if yes, describe below)

PDB Information

/,,, /z'' PDB Length/diameter---:.,....--'-..:::. ______ _

PDB Materiai ___ Poo:.::._1!_'1'--=c--------

PDBs Filled ____ J.~<::a:._I_Fc:ie,;old;-----Tether Assembled ----,.,;-;;;-La_b_l _,~,e::._ ____ _

Date/Time

Weather

Sampling Personnel

Date

&.L

TJ:C

1

weather o~~erc.r,J, ;o~ "F

Required

( Y"'l

Sample Time ___ .:..1 1..-:_1 _r;---c::-----Sample ID ...:O=k:.:.lt!..-..:.""..:...:."'_-...!'if~R.,__ __ _

Duplicate ID __ __,;V~.4:c_ _____ _

MS/MSD ___ 1+------Split Sample ID ___ _,JJ~-------

Analytical Parameters:

VOCs (Standard List)

VOCs (Expanded List)

SVOCs

PCBs (Unfiltered)

PCBs (Filtered)

Metals/lnorganics (Unfiltered)

Metals/lnorganics (Filtered)

Total Cyanide (Unfiltered)

Total Cyanide (Filtered)

PAC Cyanide (Filtered)

PCDDs/PCDFs

Pesticides/Herbicides

Natural Attenuation

Other (Specify)

Collected

Water Quality Meters Types(s)/Serial Numbers:

I(S;:. # I I U.e<. l.f.x>p 5 v 021 a!llC 2.\S>V'f

Lineffether Material diameter --.,--~Xc.:e!!._'_'-----r-----::-WeightType/Position sJ •. , '<to~ .s)...f 1>1/p.. Pa3

PDB Collection PDB replacement Downhole Field Parameters

Depth GW Am earance Number of PDBs at Deoth Number of pH (SU)_..::b..::·G:...l-_____ _ teet(bmp) Color Odor Collection Deoth (ftbmo\ PDBs Jtl,lf- r (<DI..r~ no o~ ,

tv~ Nf+. Specific Conductivity (mslcm) __ 2~. 6~?o!..::--------

ORP (mV) _ _:i.:Jer_::'_;:g:__ ____ _ /7 / /? <Lt.

...,~ Afj' :p __.;.-

~

Temperature (°C) _...:i?.t:.c'::I/(.Lf _______ _

DO (mg/L) _ _::5:_'q..::&,"'-:::::;------Turbidity _ _..!./_· :...17..!_ _____ _ ---

OBSERVATIONS/SAMPLING METHOD DEVIATIONS Prpf!. ;/o y...Jcrq+ i•"<- ..,;::- rca>'t"y".' }]/-(2_' J, T:{:C c T..,J.>dcy tol!hfaJ w;Jl. P<>·.'Y.II."< P<.Acf• otl ell<\ pg...!.t, c~r/a.L) ;y 1--s:l, (n; q/(o..,J Jo er_ .. (:~~t;.~ fk to ""'"'.

SAMPLE DESTINATION

Laboratory:-------------------­

Delivered Via:-------------------­

Airbill#: -------------------

G.iGE\GE_P!tlsfiold_Ganarai\Raports and Prasanlations\FSP..QAPP 2013\07-13 Final\ Vol !1\Appx AA\ AttaAA-1..xlsx

Field Sampling Coordinator:

Page 106: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Appendix B

Data Validation Report – Spring 2014

Page 107: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Page 1 of 9

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Appx B.doc

Appendix B Groundwater Sampling Data Validation Report Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2014 General Electric Company Pittsfield, Massachusetts

1.0 General

This attachment summarizes the data validation review performed on behalf of the General Electric Company

(GE) for groundwater samples collected in April 2014 as part of groundwater sampling activities conducted at

the Hill 78 and Building 71 On-Plant Consolidation Areas, located at the General Electric Company/Housatonic

River Site in Pittsfield, Massachusetts. The samples were analyzed for polychlorinated biphenyls (PCBs)

and/or various other constituents listed in Appendix IX of 40 CFR Part 264, plus three additional constituents -

- benzidine, 2-chloroethyl vinyl ether, and 1,2-diphenylhydrazine (hereafter referred to as Appendix IX+3) by

SGS Environmental Services, Inc. of Wilmington, North Carolina. Data validation was performed for 14 PCB

samples, 18 volatile organic compound (VOC) samples, 14 semi-volatile organic compound (SVOC) samples,

14 metal samples, 14 cyanide samples, 14 sulfide samples, and 14 polychlorinated dibenzo-p-dioxin

(PCDD)/polychlorinated dibenzofuran (PCDF) samples.

2.0 Data Evaluation Procedures

This attachment outlines the applicable quality control criteria utilized during the data review process and any

deviations from those criteria. The data review was conducted in accordance with the following documents:

Field Sampling Plan/Quality Assurance Project Plan (FSP/QAPP), General Electric Company,

Pittsfield, Massachusetts, ARCADIS (Revision 5 submitted by GE on July 2, 2013 and approved by

EPA on July 23, 2013);

EPA Region I, EPA-New England Data Validation Functional Guidelines for Evaluating Environmental

Analyses (July 1996, revised December 1996) (EPA Region I Guidelines):

EPA Region I, Part IV, Inorganic Data Validation Functional Guidelines of the EPA Region I Guidelines (November 2008); and

National Functional Guidelines for Dioxin/Furan Data Validation, USEPA (Draft, January 1996).

The data were validated to Tier I and Tier II levels, as described below. Any deviations from the applicable

quality control criteria utilized during the data review process are identified below. A tabulated summary of the

Tier I/Tier II data review is presented in Table B-1. Each sample subject to evaluation is listed in Table B-1 to

document that data review was performed. Samples that required data qualification are listed separately.

Page 108: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Page 2 of 9

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Appx B.doc

The following data qualifiers were used in this data evaluation:

J The compound was positively identified, but the associated numerical value is an estimated

concentration. This qualifier is used when the data evaluation procedure identifies a deficiency

in the data generation process. This qualifier is also used when a compound is detected at an

estimated concentration less than the corresponding practical quantitation limit (PQL).

ND(PQL) The compound was analyzed for, but was not detected at the method detection limit. The

sample PQL is presented in parentheses. Non-detect sample results are presented as ND(PQL)

in this report for consistency with documents previously prepared for investigations conducted at

the GE-Pittsfield/Housatonic River Site. 1

ND(PQL) J The compound was not detected above the reported sample PQL, but the sample PQL is

estimated and may or may not represent the actual level of quantitation. Non-detect sample

results that required this qualification are presented as ND(PQL) J in this report for consistency

with documents previously prepared for investigations conducted at the GE-Pittsfield/Housatonic

River Site. 2

R Indicates that the previously reported detection limit or sample result has been rejected due to a

major deficiency in the data generation procedure. The data should not be used for any

qualitative or quantitative purpose.

3.0 Data Validation Procedures

Section 7.5 of the revised FSP/QAPP states that all analytical data will be validated to a Tier I level following

the procedures presented in the EPA Region I Guidelines. The Tier I review consisted of a completeness

evidence audit, as outlined in the EPA Region I CSF Completeness Evidence Audit Program (EPA Region I,

July 31, 1991), to ensure that laboratory data and documentation were present. In the event that data

packages were determined to be incomplete, the missing information was requested from the laboratory.

Upon completion of the Tier I review, the data packages complied with the EPA Region I Tier I data

completeness requirements.

All analytical results from the groundwater sampling activities described above were also subjected to a Tier II

data review. The Tier II data review consisted of a review of data package summary forms for identification of

quality assurance/quality control (QA/QC) deviations and qualification of the data according to the EPA Region

I Guidelines. Additionally, field duplicates were examined for relative percent difference (RPD) compliance

with the criteria specified in the FSP/QAPP.

1 This project specific nomenclature differs from that in EPA guidance, which uses the qualifier U for non-detected compounds. 2 This project specific nomenclature differs from that in EPA guidance, which uses the qualifier UJ for non-detected compounds in this category.

Page 109: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Page 3 of 9

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Appx B.doc

A tabulated summary of the samples subject to Tier I and Tier II data review is presented in the following table.

Summary of Samples Subjected to Tier I and Tier II Data Validation

Parameter Tier I Only Tier I &Tier II

Total Samples Duplicates Blanks Samples Duplicates Blanks

PCBs 0 0 0 12 1 1 14

VOCs 0 0 0 12 1 5 18

SVOCs 0 0 0 12 1 1 14

Metals 0 0 0 12 1 1 14

PCDDs/PCDFs 0 0 0 12 1 1 14

Sulfides 0 0 0 12 1 1 14

Cyanides 0 0 0 12 1 1 14

Total 0 0 0 84 7 11 102

When qualification of the sample data was required, the sample results associated with a QA/QC parameter

deviation were qualified in accordance with the procedures outlined in EPA Region I data validation guidance

documents. When the data validation process identified several quality control deficiencies, the cumulative

effect of the various deficiencies was employed in assigning the final data qualifier. A summary of the QA/QC

parameter deviations that resulted in data qualification is presented in Section 4 below.

4.0 Summary of QA/QC Parameter Deviations Requiring Data Qualification

This section provides a summary of the deviations from the applicable QA/QC criteria that resulted in

qualification of results.

The initial calibration criterion for organic analyses requires that the average relative response factor (RRF)

has a value greater than 0.05. Sample results were qualified as estimated (ND(PQL) J) when this criterion

was not achieved. The compounds that did not achieve the initial calibration criterion and the number of

samples qualified are presented in the following table.

Compounds Qualified Due to Initial Calibration Deviations (RRF)

Analysis Compound Number of

Affected Samples Qualification

VOCs 1,4-Dioxane 18 ND(PQL) J

SVOCs Hexachlorophene 14 ND(PQL) J

The continuing calibration criterion requires that the percent difference (%D) between the initial calibration

RRF and the continuing calibration RRF for VOCs/SVOCs be less than 25%. Sample data for detect and non-

detect compounds with %D values that exceeded the continuing calibration criteria were qualified as estimated

(ND(PQL) J). A summary of the compounds that exceeded the continuing calibration criterion and the number

of samples qualified due to those deviations are presented in the following table.

Page 110: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Page 4 of 9

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Appx B.doc

Compounds Qualified Due to Continuing Calibration of %D Values

Analysis Compound Number of

Affected Samples Qualification

VOCs 1,2-Dibromo-3-chloropropane 5 ND(PQL) J

Bromoform 7 ND(PQL) J

Bromomethane 5 ND(PQL) J

Iodomethane 5 ND(PQL) J

Contract required detection limit (CRDL) standards were analyzed to evaluate instrument performance at low-

level concentrations that are near the analytical method PQL. These standards are required to have

recoveries between 80% and 120% to verify that the analytical instrumentation was properly calibrated. When

CRDL standard recoveries were outside these control limits, the affected samples with detected results at or

near the PQL concentration (i.e., less than three times the PQL) were qualified as estimated (J/ ND(PQL) J).

The analytes that did not meet CRDL criteria and the number of samples qualified due to those deviations are

presented in the following table.

Analytes Qualified Due to CRDL Standard Recovery Deviations

Analysis Analyte Number of

Affected Samples Qualification

Inorganics Arsenic

1 J

13 ND(PQL) J

Beryllium

2 J

12 ND(PQL) J

Cadmium

2 J

3 ND(PQL) J

Chromium 9 ND(PQL) J

Cobalt 14 ND(PQL) J

Copper

1 J

13 ND(PQL) J

Lead

3 J

11 ND(PQL) J

Nickel

2 J

7 ND(PQL) J

Selenium

2 J

12 ND(PQL) J

Silver 5 ND(PQL) J

Thallium

5 J

9 ND(PQL) J

Matrix spike/matrix spike duplicate (MS/MSD) sample analysis recovery criteria for organics require that the

MS/MSD recovery must be within the laboratory-generated QC control limits specified on the MS reporting

form. Sample results with MS/MSD recoveries that were less than the laboratory-generated QC control limits

and have recoveries less than 10% were qualified as rejected (R). The compound that did not meet MS/MSD

recovery criteria and the number of samples qualified due to those deviations are presented in the following

table.

Page 111: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Page 5 of 9

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Appx B.doc

Compound Qualified Due to MS/MSD Recovery Deviations

Analysis Compound Number of Affected Samples

Qualification

VOCs 2-Chloroethylvinylether 1 R

MS/MSD sample analysis recovery criteria for organics require that the RPD between the MS and MSD

recoveries be less than the laboratory-generated QC acceptance limits specified on the MS/MSD reporting

form. The compound that exceeded the RPD limit and the number of samples qualified due to deviations are

presented in the following table.

Compound Qualified Due to MS/MSD RPD Deviations

Analysis Compound Number of Affected Samples

Qualification

SVOCs Hexachlorocyclopentadiene 1 ND(PQL) J

Laboratory control sample/laboratory control sample duplicate (LCS/LCSD) analysis recovery criteria for

organics must be within the laboratory-generated QC acceptance limits specified on the LCS/LCSD reporting

form. Organic sample results associated with the LCS/LCSD that exceeded laboratory-generated QC

acceptance limits were qualified as estimated (J). The compound that did not meet LCS recovery criteria and

the number of samples qualified due to those deviations are presented in the following table.

Compound Qualified Due to LCS/LCSD Recovery Deviations

Analysis Compound Number of Affected

Samples Qualification

SVOCs Hexachlorocyclopentadiene 14 ND(PQL) J

LCS/LCSD sample analysis recovery criteria for organics require that the RPD between the LCS and LCSD

recoveries be less than the laboratory-generated QC acceptance limits specified on the LCS/LCSD reporting

form. The compounds that exceeded the RPD limit and the number of samples qualified due to deviations are

presented in the following table.

Compound Qualified Due to LCS/LCSD RPD Deviations

Analysis Compounds Number of Affected Samples

Qualification

SVOCs 2,4-Dimethylphenol 4 ND(PQL) J

3,3'-Dichlorobenzidine 4 ND(PQL) J

Hexachlorocyclopentadiene 4 ND(PQL) J

Blank action levels for analytes detected in the blanks were calculated at five times the blank concentrations.

The FSP/QAPP indicates that blank contamination for PCDDs/PCDFs be qualified with a “B”; however,

detected sample and/or total PCDD/PCDF results that were below the blank action level were qualified as non-

detect (ND) to reflect the approach historically used for this project. The laboratory qualified compounds

associated with blank contamination with a “B” qualifier; however the compounds with concentrations above

the blank action level had the “B” qualifiers removed, with the exception of the rinse blank, which is not

Page 112: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Page 6 of 9

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Appx B.doc

evaluated for blank contamination. The analytes/compounds detected in method/analytical blanks which

resulted in qualification of sample data, along with the number of affected samples, are presented in the

following table.

Analytes/Compounds Qualified Due to Blank Deviations

Analysis Analyte/Compound Number of

Affected Samples Qualification

VOCs Acetone 4 ND(PQL)

Metals Barium 9 ND(PQL)

Chromium 6 ND(PQL)

Copper 13 ND(PQL)

Mercury 11 ND(PQL)

Zinc 4 ND(PQL)

PCDDs/PCDFs 1,2,3,4,6,7,8-HpCDD 6 ND(PQL)

1,2,3,4,6,7,8-HpCDF 7 ND(PQL)

HpCDDs (total) 5 ND(PQL)

HpCDFs (total) 7 ND(PQL)

OCDD 12 ND(PQL)

As specified in the PCDD/PCDF method, the ion abundance ratio in the sample must be within 15% of the

theoretical ion abundance ratio. Sample results associated with ion abundance ratio recoveries outside the

specified control limits were qualified by the laboratory with an X. This qualification was removed and changed

to estimated (J). The PCDD/PCDF compounds that exhibited ion abundance ratio recoveries greater than

15% are presented in the following table.

Compounds Qualified Due to Ion Ratio Deviations

Analysis Compound Number of

Affected Samples Qualification

PCDDs/PCDFs 1,2,3,4,6,7,8-HpCDF 1 J

1,2,3,4,7,8,9-HpCDF 1 J

1,2,3,4,7,8-HxCDF 2 J

1,2,3,6,7,8-HxCDF 2 J

1,2,3,7,8,9-HxCDD 5 J

2,3,4,6,7,8-HxCDF 1 J

2,3,7,8-TCDF 1 J

PeCDFs (total) 3 J

TCDFs (total) 2 J

HpCDFs (total) 1 J

HxCDDs (total) 2 J

HxCDFs (total) 1 J

OCDF 1 J

Page 113: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Page 7 of 9

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Appx B.doc

As specified in the FSP/QAPP, the samples must be preserved at <6ºC. Sample results associated with

temperatures outside the specified control limits were qualified as estimated (J). The VOC compounds that

exhibited temperatures greater than 6ºC are presented in the following table.

Compounds Qualified Due to Temperature Deviations

Analysis Compound Number of

Affected Samples Qualification

VOCs All compounds 5 J/ ND(PQL) J

5.0 Overall Data Usability

This section summarizes the analytical data in terms of its completeness and usability. Data completeness is

defined as the percentage of sample results that have been determined to be usable during the data validation

process. The percent usability calculation included analyses evaluated under both the Tier I/II data validation

reviews. The percent usability calculation also includes quality control samples (i.e., field/equipment blanks,

trip blanks, and field duplicates) to aid in the evaluation of data usability. Data usability is summarized in the

following table.

Data Usability

Parameter Percent Usability Rejected Data

VOCs 99.9 A total of one sample results were rejected due to MS/MSD deviations.

SVOCs 100 None

PCBs 100 None

PCDDs/PCDFs 100 None

Metals 100 None

Sulfides 100 None

Cyanides 100 None

The data package completeness, as determined from the Tier I data review, was used in combination with the

data quality deviations identified during the Tier II data review to determine overall data quality. As specified in

the FSP/QAPP, the overall precision, accuracy, representativeness, comparability, and completeness

(PARCC) parameters determined from the Tier I and Tier II data reviews were used as indicators of overall

data quality. These parameters were assessed through an evaluation of the results of the field and laboratory

QA/QC sample analyses to provide a measure of compliance of the analytical data with the Data Quality

Objectives (DQOs) specified in the FSP/QAPP. Therefore, the following sections present summaries of the

PARCC parameters assessment with regard to the DQOs specified in the FSP/QAPP.

Page 114: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Page 8 of 9

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Appx B.doc

5.1 Precision

Precision measures the reproducibility of measurements under a given set of conditions. Specifically, it is a

quantitative measure of the variability of a group of measurements compared to their average value. For this

investigation, precision was defined as the RPD between duplicate sample results. The duplicate samples

used to evaluate precision included field duplicates, MS/MSD samples, and LCS/LCSD samples. For this

analytical program, 0.03% of the data required qualification due to MS/MSD RPD deviations, and 0.36% of the

data required qualification due to LCS/LCSD RPD deviations. None of the data required qualification due to

field duplicate deviations.

5.2 Accuracy

Accuracy measures the bias in an analytical system or the degree of agreement of a measurement with a

known reference value. For this investigation, accuracy was defined as the percent recovery of QA/QC

samples that were spiked with a known concentration of an analyte or compound of interest. The QA/QC

samples used to evaluate analytical accuracy included instrument calibration, internal standards, LCS/LCSD

samples, MS/MSD samples, CRDL samples, and surrogate compound recoveries. For this analytical

program, 1.6% of the data required qualification due to instrument calibration deviations, 0.03% of the data

required qualification due to MS/MSD recovery deviations, 3.8% of the data required qualification due to CRDL

deviations, and 0.42% of the data required qualification due to LCS/LCSD recovery deviations. None of the

data required qualification due to internal standard recovery deviations or surrogate compound recovery

deviations.

5.3 Representativeness

Representativeness expresses the degree to which sample data accurately and precisely represents a

characteristic of a population, parameter variations at a sampling point, or an environmental condition.

Representativeness is a qualitative parameter, which is most concerned with the proper design of the

sampling program. The representativeness criterion is best satisfied by making certain that sampling locations

are selected properly and a sufficient number of samples are collected. This parameter has been addressed

by collecting samples at locations specified in the EPA-approved work plans, and by following the procedures

for sample collection/analyses that were described in the FSP/QAPP. Additionally, the analytical program

used procedures consistent with EPA-approved analytical methodology. A QA/QC parameter that is an

indicator of the representativeness of a sample is holding time. Holding time criteria are established to

maintain the samples in a state that is representative of the in-situ field conditions before analysis. For this

analytical data set, none of the data required qualification due to holding time deviations.

5.4 Comparability

Comparability is a qualitative parameter expressing the confidence with which one data set can be compared

with another. This goal was achieved through the use of the standardized techniques for sample collection

and analysis presented in the FSP/QAPP. Specifically, all the groundwater samples collected in April 2014

were analyzed by EPA SW-846 method 8082 for PCBs, 8260 for VOCs, 8270 for SVOCs, 8290 for

PCDDs/PCDFs, 6000/7000 for metals, 9034 for sulfides, and 9012 for cyanides.

Page 115: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Page 9 of 9

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324Appx B.doc

5.5 Completeness

Completeness is defined as the percentage of measurements that are judged to be valid or usable to meet the

prescribed DQOs. The completeness criterion is essentially the same for all data uses -- the generation of a

sufficient amount of valid data. The actual completeness of this analytical data set ranged from 99.9% to

100% for individual analytical parameters and had an overall usability of 99.9%, which is greater than the

minimum required usability of 90% as specified in the FSP/QAPP.

Page 116: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

PCBs31400522 78-1 (Filtered) 4/9/2014 Water Tier II No31400522 DUP 040914 (Filtered) 4/9/2014 Water Tier II No Duplicate of GMA4-6 (Filtered)31400522 GMA4-6 (Filtered) 4/9/2014 Water Tier II No31400522 OPCA-MW-2R (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-3 (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-4 (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-5R (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-7 (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-8R (Filtered) 4/9/2014 Water Tier II No31400528 78-6R (Filtered) 4/9/2014 Water Tier II No31400528 H78B-15 (Filtered) 4/10/2014 Water Tier II No31400528 OPCA-MW-1RR (Filtered) 4/10/2014 Water Tier II No31400528 OPCA-MW-6 (Filtered) 4/10/2014 Water Tier II No31400546 OPCA Rinse Blank (Filtered) 4/14/2014 Water Tier II NoMetals31400522 78-1 (Filtered) 4/9/2014 Water Tier II Yes Arsenic CRDL Standard %R 305% 80% to 120% ND(0.0100) J

Barium Method Blank - - ND(0.100) Beryllium CRDL Standard %R 143% 80% to 120% ND(0.0100) JChromium Method Blank - - ND(0.0100) Chromium CRDL Standard %R 134% 80% to 120% ND(0.0100) JCobalt CRDL Standard %R 126% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 138% 80% to 120% ND(0.0100) JLead CRDL Standard %R 154% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Nickel CRDL Standard %R 127% 80% to 120% ND(0.0100) JSelenium CRDL Standard %R 151% 80% to 120% ND(0.0200) JThallium CRDL Standard %R 207% 80% to 120% ND(0.0100) J

31400522 DUP 040914 (Filtered) 4/9/2014 Water Tier II Yes Arsenic CRDL Standard %R 305% 80% to 120% ND(0.0100) J Duplicate of GMA4-6 (Filtered)Barium Method Blank - - ND(0.100) Beryllium CRDL Standard %R 143% 80% to 120% 0.0403 JChromium CRDL Standard %R 134% 80% to 120% ND(0.0100) JCobalt CRDL Standard %R 126% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 138% 80% to 120% ND(0.0100) JLead CRDL Standard %R 154% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Nickel CRDL Standard %R 127% 80% to 120% ND(0.0100) JSelenium CRDL Standard %R 151% 80% to 120% ND(0.0200) JThallium CRDL Standard %R 207% 80% to 120% ND(0.0100) J

31400522 GMA4-6 (Filtered) 4/9/2014 Water Tier II Yes Arsenic CRDL Standard %R 305% 80% to 120% ND(0.0100) JBarium Method Blank - - ND(0.100) Beryllium CRDL Standard %R 143% 80% to 120% ND(0.0100) JChromium CRDL Standard %R 134% 80% to 120% ND(0.0100) JCobalt CRDL Standard %R 126% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 138% 80% to 120% ND(0.0100) JLead CRDL Standard %R 154% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Nickel CRDL Standard %R 127% 80% to 120% ND(0.0100) JSelenium CRDL Standard %R 151% 80% to 120% ND(0.0200) JThallium CRDL Standard %R 207% 80% to 120% 0.0105 J

31400522 OPCA-MW-2R (Filtered) 4/8/2014 Water Tier II Yes Arsenic CRDL Standard %R 305% 80% to 120% ND(0.0100) JBarium Method Blank - - ND(0.100) Beryllium CRDL Standard %R 143% 80% to 120% ND(0.0100) JChromium Method Blank - - ND(0.0100) Chromium CRDL Standard %R 134% 80% to 120% ND(0.0100) JCobalt CRDL Standard %R 126% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 138% 80% to 120% ND(0.0100) JLead CRDL Standard %R 154% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Nickel CRDL Standard %R 127% 80% to 120% ND(0.0100) JSelenium CRDL Standard %R 151% 80% to 120% 0.00876 J

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 1 of 10 7/25/2014

Page 117: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Metals (continued)31400522 OPCA-MW-2R (Filtered) 4/8/2014 Water Tier II Yes Thallium CRDL Standard %R 207% 80% to 120% 0.0107 J31400522 OPCA-MW-3 (Filtered) 4/8/2014 Water Tier II Yes Arsenic CRDL Standard %R 305% 80% to 120% ND(0.0100) J

Barium Method Blank - - ND(0.100) Beryllium CRDL Standard %R 143% 80% to 120% ND(0.0100) JChromium CRDL Standard %R 134% 80% to 120% ND(0.0100) JCobalt CRDL Standard %R 126% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 138% 80% to 120% ND(0.0100) JLead CRDL Standard %R 154% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Nickel CRDL Standard %R 127% 80% to 120% 0.00357 JSelenium CRDL Standard %R 151% 80% to 120% ND(0.0200) JThallium CRDL Standard %R 207% 80% to 120% ND(0.0100) J

31400522 OPCA-MW-4 (Filtered) 4/8/2014 Water Tier II Yes Arsenic CRDL Standard %R 305% 80% to 120% ND(0.0100) JBarium Method Blank - - ND(0.100) Beryllium CRDL Standard %R 143% 80% to 120% ND(0.0100) JChromium Method Blank - - ND(0.0100) Chromium CRDL Standard %R 134% 80% to 120% ND(0.0100) JCobalt CRDL Standard %R 126% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 138% 80% to 120% ND(0.0100) JLead CRDL Standard %R 154% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Nickel CRDL Standard %R 127% 80% to 120% ND(0.0100) JSelenium CRDL Standard %R 151% 80% to 120% ND(0.0200) JThallium CRDL Standard %R 207% 80% to 120% 0.00805 J

31400522 OPCA-MW-5R (Filtered) 4/8/2014 Water Tier II Yes Arsenic CRDL Standard %R 305% 80% to 120% ND(0.0100) JBarium Method Blank - - ND(0.100) Beryllium CRDL Standard %R 143% 80% to 120% ND(0.0100) JChromium Method Blank - - ND(0.0100) Chromium CRDL Standard %R 134% 80% to 120% ND(0.0100) JCobalt CRDL Standard %R 126% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 138% 80% to 120% ND(0.0100) JLead CRDL Standard %R 154% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Nickel CRDL Standard %R 127% 80% to 120% ND(0.0100) JSelenium CRDL Standard %R 151% 80% to 120% ND(0.0200) JThallium CRDL Standard %R 207% 80% to 120% ND(0.0100) J

31400522 OPCA-MW-7 (Filtered) 4/8/2014 Water Tier II Yes Arsenic CRDL Standard %R 305% 80% to 120% ND(0.0100) JBeryllium CRDL Standard %R 143% 80% to 120% 0.00872 JChromium Method Blank - - ND(0.0100) Chromium CRDL Standard %R 134% 80% to 120% ND(0.0100) JCobalt CRDL Standard %R 126% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 138% 80% to 120% ND(0.0100) JLead CRDL Standard %R 154% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Nickel CRDL Standard %R 127% 80% to 120% ND(0.0100) JSelenium CRDL Standard %R 151% 80% to 120% 0.00856 JThallium CRDL Standard %R 207% 80% to 120% ND(0.0100) J

31400522 OPCA-MW-8R (Filtered) 4/9/2014 Water Tier II Yes Arsenic CRDL Standard %R 305% 80% to 120% ND(0.0100) JBeryllium CRDL Standard %R 143% 80% to 120% ND(0.0100) JChromium Method Blank - - ND(0.0100) Chromium CRDL Standard %R 134% 80% to 120% ND(0.0100) JCobalt CRDL Standard %R 126% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 138% 80% to 120% ND(0.0100) JLead CRDL Standard %R 154% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Nickel CRDL Standard %R 127% 80% to 120% 0.00346 JSelenium CRDL Standard %R 151% 80% to 120% ND(0.0200) JThallium CRDL Standard %R 207% 80% to 120% 0.00992 J

31400528 78-6R (Filtered) 4/9/2014 Water Tier II Yes Arsenic CRDL Standard %R 72.1% 80% to 120% ND(0.0100) J

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 2 of 10 7/25/2014

Page 118: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Metals (continued)31400528 78-6R (Filtered) 4/9/2014 Water Tier II Yes Beryllium CRDL Standard %R 158% 80% to 120% ND(0.0100) J

Cadmium CRDL Standard %R 211% 80% to 120% 0.000200 JCobalt CRDL Standard %R 67.2% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 139% 80% to 120% ND(0.0100) JLead CRDL Standard %R 184% 80% to 120% ND(0.0100) JSelenium CRDL Standard %R 78.9% 80% to 120% ND(0.0200) JSilver CRDL Standard %R 130% 80% to 120% ND(0.000500) JThallium CRDL Standard %R 134% 80% to 120% ND(0.0100) JZinc Method Blank - - ND(0.0200)

31400528 H78B-15 (Filtered) 4/10/2014 Water Tier II Yes Arsenic CRDL Standard %R 72.1% 80% to 120% ND(0.0100) JBarium Method Blank - - ND(0.100) Beryllium CRDL Standard %R 158% 80% to 120% ND(0.0100) JCadmium CRDL Standard %R 211% 80% to 120% ND(0.000500) JCobalt CRDL Standard %R 67.2% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 139% 80% to 120% ND(0.0100) JLead CRDL Standard %R 184% 80% to 120% 0.00826 JMercury Method Blank - - ND(0.000150) Selenium CRDL Standard %R 78.9% 80% to 120% ND(0.0200) JSilver CRDL Standard %R 130% 80% to 120% ND(0.000500) JThallium CRDL Standard %R 134% 80% to 120% ND(0.0100) JZinc Method Blank - - ND(0.0200)

31400528 OPCA-MW-1RR (Filtered) 4/10/2014 Water Tier II Yes Arsenic CRDL Standard %R 72.1% 80% to 120% ND(0.0100) JBeryllium CRDL Standard %R 158% 80% to 120% ND(0.0100) JCadmium CRDL Standard %R 211% 80% to 120% 0.0273 JCobalt CRDL Standard %R 67.2% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 139% 80% to 120% ND(0.0100) JLead CRDL Standard %R 184% 80% to 120% 0.00982 JSelenium CRDL Standard %R 78.9% 80% to 120% ND(0.0200) JSilver CRDL Standard %R 130% 80% to 120% ND(0.000500) JThallium CRDL Standard %R 134% 80% to 120% 0.0102 JZinc Method Blank - - ND(0.0200)

31400528 OPCA-MW-6 (Filtered) 4/10/2014 Water Tier II Yes Arsenic CRDL Standard %R 72.1% 80% to 120% ND(0.0100) JBarium Method Blank - - ND(0.100) Beryllium CRDL Standard %R 158% 80% to 120% ND(0.0100) JCadmium CRDL Standard %R 211% 80% to 120% ND(0.000500) JCobalt CRDL Standard %R 67.2% 80% to 120% ND(0.0100) JCopper Method Blank - - ND(0.0100) Copper CRDL Standard %R 139% 80% to 120% ND(0.0100) JLead CRDL Standard %R 184% 80% to 120% ND(0.0100) JMercury Method Blank - - ND(0.000150) Selenium CRDL Standard %R 78.9% 80% to 120% ND(0.0200) JSilver CRDL Standard %R 130% 80% to 120% ND(0.000500) JThallium CRDL Standard %R 134% 80% to 120% ND(0.0100) JZinc Method Blank - - ND(0.0200)

31400546 OPCA Rinse Blank (Filtered) 4/14/2014 Water Tier II Yes Arsenic CRDL Standard %R 72.1% 80% to 120% 0.00621 JBeryllium CRDL Standard %R 158% 80% to 120% ND(0.0100) JCadmium CRDL Standard %R 211% 80% to 120% ND(0.000500) JCobalt CRDL Standard %R 67.2% 80% to 120% ND(0.0100) JCopper CRDL Standard %R 139% 80% to 120% 0.00761 JLead CRDL Standard %R 184% 80% to 120% 0.00851 JSelenium CRDL Standard %R 78.9% 80% to 120% ND(0.0200) JSilver CRDL Standard %R 130% 80% to 120% ND(0.000500) JThallium CRDL Standard %R 134% 80% to 120% ND(0.0100) J

VOCs31400522 78-1 4/9/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J31400522 DUP 040914 4/9/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J Duplicate of GMA4-631400522 GMA4-6 4/9/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J

2-Chloroethylvinylether MS/MSD %R 0.0%, 0.0% 17.0% to 200% R31400522 OPCA-MW-2R 4/8/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J31400522 OPCA-MW-3 4/8/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J31400522 Trip Blank 4/9/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 3 of 10 7/25/2014

Page 119: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

VOCs (continued)31400528 78-6R 4/9/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J31400528 H78B-15 4/10/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J31400528 OPCA-MW-1RR 4/10/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(4.0) J31400528 OPCA-MW-6 4/10/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J31400528 Trip Blank 4/11/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J31400546 OPCA Rinse Blank 4/14/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J

Bromoform CCAL %D 31.7% <25% ND(0.0010) J31400546 Trip Blank 4/15/2014 Water Tier II Yes 1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J

Bromoform CCAL %D 31.7% <25% ND(0.0010) J31400725 OPCA-MW-4 5/9/2014 Water Tier II Yes 1,1,1,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J

1,1,1-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,2,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,2-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2,3-Trichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dibromo-3-chloropropane Temperature Receipt 9ºC <6ºC ND(0.0050) J1,2-Dibromo-3-chloropropane CCAL %D 34.7% <25% ND(0.0050) J1,2-Dibromoethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,4-Dioxane Temperature Receipt 9ºC <6ºC ND(0.10) J1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J2-Butanone Temperature Receipt 9ºC <6ºC ND(0.025) J2-Chloro-1,3-butadiene Temperature Receipt 9ºC <6ºC ND(0.0010) J2-Chloroethylvinylether Temperature Receipt 9ºC <6ºC ND(0.025) J2-Hexanone Temperature Receipt 9ºC <6ºC ND(0.0050) J3-Chloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) J4-Methyl-2-pentanone Temperature Receipt 9ºC <6ºC ND(0.0050) JAcetone Temperature Receipt 9ºC <6ºC ND(0.046) JAcetone Trip Blank - - ND(0.046) Acetonitrile Temperature Receipt 9ºC <6ºC ND(0.020) JAcrolein Temperature Receipt 9ºC <6ºC ND(0.025) JAcrylonitrile Temperature Receipt 9ºC <6ºC ND(0.025) JBenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JBromodichloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform CCAL %D 30.1% <25% ND(0.0010) JBromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromomethane CCAL %D 53.5% <25% ND(0.0010) JCarbon Disulfide Temperature Receipt 9ºC <6ºC ND(0.0010) JCarbon Tetrachloride Temperature Receipt 9ºC <6ºC ND(0.0010) JChlorobenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JChloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) JChloroform Temperature Receipt 9ºC <6ºC ND(0.0010) JChloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) Jcis-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromochloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDichlorodifluoromethane Temperature Receipt 9ºC <6ºC ND(0.0050) JEthyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JEthylbenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane CCAL %D 38.1% <25% ND(0.0010) JIsobutanol Temperature Receipt 9ºC <6ºC ND(0.050) JMethacrylonitrile Temperature Receipt 9ºC <6ºC ND(0.010) JMethyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JMethylene Chloride Temperature Receipt 9ºC <6ºC ND(0.0050) JPropionitrile Temperature Receipt 9ºC <6ºC ND(0.020) JStyrene Temperature Receipt 9ºC <6ºC ND(0.0010) JTetrachloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) JToluene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,2-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) J

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 4 of 10 7/25/2014

Page 120: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

VOCs (continued)31400725 OPCA-MW-4 5/9/2014 Water Tier II Yes trans-1,4-Dichloro-2-butene Temperature Receipt 9ºC <6ºC ND(0.0050) J

Trichloroethene Temperature Receipt 9ºC <6ºC 0.0012 JTrichlorofluoromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JVinyl Acetate Temperature Receipt 9ºC <6ºC ND(0.0020) JVinyl Chloride Temperature Receipt 9ºC <6ºC ND(0.0010) JXylenes (total) Temperature Receipt 9ºC <6ºC ND(0.0020) J

31400725 OPCA-MW-5R 5/9/2014 Water Tier II Yes 1,1,1,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,1-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,2,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,2-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2,3-Trichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dibromo-3-chloropropane Temperature Receipt 9ºC <6ºC ND(0.0050) J1,2-Dibromo-3-chloropropane CCAL %D 34.7% <25% ND(0.0050) J1,2-Dibromoethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,4-Dioxane Temperature Receipt 9ºC <6ºC ND(0.10) J1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J2-Butanone Temperature Receipt 9ºC <6ºC ND(0.025) J2-Chloro-1,3-butadiene Temperature Receipt 9ºC <6ºC ND(0.0010) J2-Chloroethylvinylether Temperature Receipt 9ºC <6ºC ND(0.025) J2-Hexanone Temperature Receipt 9ºC <6ºC ND(0.0050) J3-Chloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) J4-Methyl-2-pentanone Temperature Receipt 9ºC <6ºC ND(0.0050) JAcetone Temperature Receipt 9ºC <6ºC ND(0.038) JAcetone Trip Blank - - ND(0.038) Acetonitrile Temperature Receipt 9ºC <6ºC ND(0.020) JAcrolein Temperature Receipt 9ºC <6ºC ND(0.025) JAcrylonitrile Temperature Receipt 9ºC <6ºC ND(0.025) JBenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JBromodichloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform CCAL %D 30.1% <25% ND(0.0010) JBromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromomethane CCAL %D 53.5% <25% ND(0.0010) JCarbon Disulfide Temperature Receipt 9ºC <6ºC ND(0.0010) JCarbon Tetrachloride Temperature Receipt 9ºC <6ºC ND(0.0010) JChlorobenzene Temperature Receipt 9ºC <6ºC 0.00036 JChloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) JChloroform Temperature Receipt 9ºC <6ºC ND(0.0010) JChloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) Jcis-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromochloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDichlorodifluoromethane Temperature Receipt 9ºC <6ºC ND(0.0050) JEthyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JEthylbenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane CCAL %D 38.1% <25% ND(0.0010) JIsobutanol Temperature Receipt 9ºC <6ºC ND(0.050) JMethacrylonitrile Temperature Receipt 9ºC <6ºC ND(0.010) JMethyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JMethylene Chloride Temperature Receipt 9ºC <6ºC ND(0.0050) JPropionitrile Temperature Receipt 9ºC <6ºC ND(0.020) JStyrene Temperature Receipt 9ºC <6ºC ND(0.0010) JTetrachloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) JToluene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,2-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,4-Dichloro-2-butene Temperature Receipt 9ºC <6ºC ND(0.0050) JTrichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) JTrichlorofluoromethane Temperature Receipt 9ºC <6ºC ND(0.0010) J

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 5 of 10 7/25/2014

Page 121: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

VOCs (continued)31400725 OPCA-MW-5R 5/9/2014 Water Tier II Yes Vinyl Acetate Temperature Receipt 9ºC <6ºC ND(0.0020) J

Vinyl Chloride Temperature Receipt 9ºC <6ºC ND(0.0010) JXylenes (total) Temperature Receipt 9ºC <6ºC ND(0.0020) J

31400725 OPCA-MW-7 5/9/2014 Water Tier II Yes 1,1,1,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,1-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,2,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,2-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2,3-Trichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dibromo-3-chloropropane Temperature Receipt 9ºC <6ºC ND(0.0050) J1,2-Dibromo-3-chloropropane CCAL %D 34.7% <25% ND(0.0050) J1,2-Dibromoethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,4-Dioxane Temperature Receipt 9ºC <6ºC ND(0.10) J1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J2-Butanone Temperature Receipt 9ºC <6ºC ND(0.025) J2-Chloro-1,3-butadiene Temperature Receipt 9ºC <6ºC ND(0.0010) J2-Chloroethylvinylether Temperature Receipt 9ºC <6ºC ND(0.025) J2-Hexanone Temperature Receipt 9ºC <6ºC ND(0.0050) J3-Chloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) J4-Methyl-2-pentanone Temperature Receipt 9ºC <6ºC ND(0.0050) JAcetone Temperature Receipt 9ºC <6ºC ND(0.047) JAcetone Trip Blank - - ND(0.047) Acetonitrile Temperature Receipt 9ºC <6ºC ND(0.020) JAcrolein Temperature Receipt 9ºC <6ºC ND(0.025) JAcrylonitrile Temperature Receipt 9ºC <6ºC ND(0.025) JBenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JBromodichloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform CCAL %D 30.1% <25% ND(0.0010) JBromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromomethane CCAL %D 53.5% <25% ND(0.0010) JCarbon Disulfide Temperature Receipt 9ºC <6ºC ND(0.0010) JCarbon Tetrachloride Temperature Receipt 9ºC <6ºC ND(0.0010) JChlorobenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JChloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) JChloroform Temperature Receipt 9ºC <6ºC ND(0.0010) JChloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) Jcis-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromochloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDichlorodifluoromethane Temperature Receipt 9ºC <6ºC ND(0.0050) JEthyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JEthylbenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane CCAL %D 38.1% <25% ND(0.0010) JIsobutanol Temperature Receipt 9ºC <6ºC ND(0.050) JMethacrylonitrile Temperature Receipt 9ºC <6ºC ND(0.010) JMethyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JMethylene Chloride Temperature Receipt 9ºC <6ºC ND(0.0050) JPropionitrile Temperature Receipt 9ºC <6ºC ND(0.020) JStyrene Temperature Receipt 9ºC <6ºC ND(0.0010) JTetrachloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) JToluene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,2-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,4-Dichloro-2-butene Temperature Receipt 9ºC <6ºC ND(0.0050) JTrichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) JTrichlorofluoromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JVinyl Acetate Temperature Receipt 9ºC <6ºC ND(0.0020) JVinyl Chloride Temperature Receipt 9ºC <6ºC ND(0.0010) JXylenes (total) Temperature Receipt 9ºC <6ºC ND(0.0020) J

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 6 of 10 7/25/2014

Page 122: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

VOCs (continued)31400725 OPCA-MW-8R 5/9/2014 Water Tier II Yes 1,1,1,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J

1,1,1-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,2,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,2-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2,3-Trichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dibromo-3-chloropropane Temperature Receipt 9ºC <6ºC ND(0.0050) J1,2-Dibromo-3-chloropropane CCAL %D 34.7% <25% ND(0.0050) J1,2-Dibromoethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,4-Dioxane Temperature Receipt 9ºC <6ºC ND(0.10) J1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J2-Butanone Temperature Receipt 9ºC <6ºC ND(0.025) J2-Chloro-1,3-butadiene Temperature Receipt 9ºC <6ºC ND(0.0010) J2-Chloroethylvinylether Temperature Receipt 9ºC <6ºC ND(0.025) J2-Hexanone Temperature Receipt 9ºC <6ºC ND(0.0050) J3-Chloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) J4-Methyl-2-pentanone Temperature Receipt 9ºC <6ºC ND(0.0050) JAcetone Temperature Receipt 9ºC <6ºC ND(0.039) JAcetone Trip Blank - - ND(0.039) Acetonitrile Temperature Receipt 9ºC <6ºC ND(0.020) JAcrolein Temperature Receipt 9ºC <6ºC ND(0.025) JAcrylonitrile Temperature Receipt 9ºC <6ºC ND(0.025) JBenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JBromodichloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform CCAL %D 30.1% <25% ND(0.0010) JBromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromomethane CCAL %D 53.5% <25% ND(0.0010) JCarbon Disulfide Temperature Receipt 9ºC <6ºC ND(0.0010) JCarbon Tetrachloride Temperature Receipt 9ºC <6ºC ND(0.0010) JChlorobenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JChloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) JChloroform Temperature Receipt 9ºC <6ºC ND(0.0010) JChloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) Jcis-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromochloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDichlorodifluoromethane Temperature Receipt 9ºC <6ºC ND(0.0050) JEthyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JEthylbenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane CCAL %D 38.1% <25% ND(0.0010) JIsobutanol Temperature Receipt 9ºC <6ºC ND(0.050) JMethacrylonitrile Temperature Receipt 9ºC <6ºC ND(0.010) JMethyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JMethylene Chloride Temperature Receipt 9ºC <6ºC ND(0.0050) JPropionitrile Temperature Receipt 9ºC <6ºC ND(0.020) JStyrene Temperature Receipt 9ºC <6ºC ND(0.0010) JTetrachloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) JToluene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,2-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,4-Dichloro-2-butene Temperature Receipt 9ºC <6ºC ND(0.0050) JTrichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) JTrichlorofluoromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JVinyl Acetate Temperature Receipt 9ºC <6ºC ND(0.0020) JVinyl Chloride Temperature Receipt 9ºC <6ºC ND(0.0010) JXylenes (total) Temperature Receipt 9ºC <6ºC ND(0.0020) J

31400725 Trip Blanks 5/9/2014 Water Tier II Yes 1,1,1,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,1-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1,2,2-Tetrachloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 7 of 10 7/25/2014

Page 123: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

VOCs (continued)31400725 Trip Blanks 5/9/2014 Water Tier II Yes 1,1,2-Trichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J

1,1-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,1-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2,3-Trichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dibromo-3-chloropropane Temperature Receipt 9ºC <6ºC ND(0.0050) J1,2-Dibromo-3-chloropropane CCAL %D 34.7% <25% ND(0.0050) J1,2-Dibromoethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,2-Dichloropropane Temperature Receipt 9ºC <6ºC ND(0.0010) J1,4-Dioxane Temperature Receipt 9ºC <6ºC ND(0.10) J1,4-Dioxane ICAL RRF 0.016 >0.05 ND(0.10) J2-Butanone Temperature Receipt 9ºC <6ºC ND(0.025) J2-Chloro-1,3-butadiene Temperature Receipt 9ºC <6ºC ND(0.0010) J2-Chloroethylvinylether Temperature Receipt 9ºC <6ºC ND(0.025) J2-Hexanone Temperature Receipt 9ºC <6ºC ND(0.0050) J3-Chloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) J4-Methyl-2-pentanone Temperature Receipt 9ºC <6ºC ND(0.0050) JAcetone Temperature Receipt 9ºC <6ºC 0.034 JAcetonitrile Temperature Receipt 9ºC <6ºC ND(0.020) JAcrolein Temperature Receipt 9ºC <6ºC ND(0.025) JAcrylonitrile Temperature Receipt 9ºC <6ºC ND(0.025) JBenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JBromodichloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform Temperature Receipt 9ºC <6ºC ND(0.0010) JBromoform CCAL %D 30.1% <25% ND(0.0010) JBromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JBromomethane CCAL %D 53.5% <25% ND(0.0010) JCarbon Disulfide Temperature Receipt 9ºC <6ºC ND(0.0010) JCarbon Tetrachloride Temperature Receipt 9ºC <6ºC ND(0.0010) JChlorobenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JChloroethane Temperature Receipt 9ºC <6ºC ND(0.0010) JChloroform Temperature Receipt 9ºC <6ºC ND(0.0010) JChloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) Jcis-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromochloromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDibromomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JDichlorodifluoromethane Temperature Receipt 9ºC <6ºC ND(0.0050) JEthyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JEthylbenzene Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane Temperature Receipt 9ºC <6ºC ND(0.0010) JIodomethane CCAL %D 38.1% <25% ND(0.0010) JIsobutanol Temperature Receipt 9ºC <6ºC ND(0.050) JMethacrylonitrile Temperature Receipt 9ºC <6ºC ND(0.010) JMethyl Methacrylate Temperature Receipt 9ºC <6ºC ND(0.0010) JMethylene Chloride Temperature Receipt 9ºC <6ºC ND(0.0050) JPropionitrile Temperature Receipt 9ºC <6ºC ND(0.020) JStyrene Temperature Receipt 9ºC <6ºC ND(0.0010) JTetrachloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) JToluene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,2-Dichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,3-Dichloropropene Temperature Receipt 9ºC <6ºC ND(0.0010) Jtrans-1,4-Dichloro-2-butene Temperature Receipt 9ºC <6ºC ND(0.0050) JTrichloroethene Temperature Receipt 9ºC <6ºC ND(0.0010) JTrichlorofluoromethane Temperature Receipt 9ºC <6ºC ND(0.0010) JVinyl Acetate Temperature Receipt 9ºC <6ºC ND(0.0020) JVinyl Chloride Temperature Receipt 9ºC <6ºC ND(0.0010) JXylenes (total) Temperature Receipt 9ºC <6ºC ND(0.0020) J

SVOCs 31400522 78-1 4/9/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 12.0% 60.0% to 141% ND(0.011) J

Hexachlorophene ICAL RRF 0.020 >0.05 ND(0.027) J31400522 DUP 040914 4/9/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 12.0% 60.0% to 141% ND(0.012) J Duplicate of GMA4-6

Hexachlorophene ICAL RRF 0.020 >0.05 ND(0.029) J31400522 GMA4-6 4/9/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 12.0% 60.0% to 141% ND(0.011) J

Hexachlorocyclopentadiene MS/MSD RPD 58.0% <30% ND(0.011) J

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 8 of 10 7/25/2014

Page 124: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

SVOCs (continued)31400522 GMA4-6 4/9/2014 Water Tier II Yes Hexachlorophene ICAL RRF 0.020 >0.05 ND(0.027) J31400522 OPCA-MW-2R 4/8/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 12.0% 60.0% to 141% ND(0.011) J

Hexachlorophene ICAL RRF 0.020 >0.05 ND(0.028) J31400522 OPCA-MW-3 4/8/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 12.0% 60.0% to 141% ND(0.010) J

Hexachlorophene ICAL RRF 0.020 >0.05 ND(0.025) J31400522 OPCA-MW-4 4/8/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 12.0% 60.0% to 141% ND(0.010) J

Hexachlorophene ICAL RRF 0.020 >0.05 ND(0.025) J31400522 OPCA-MW-5R 4/8/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 12.0% 60.0% to 141% ND(0.011) J

Hexachlorophene ICAL RRF 0.020 >0.05 ND(0.026) J31400522 OPCA-MW-7 4/8/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 12.0% 60.0% to 141% ND(0.012) J

Hexachlorophene ICAL RRF 0.020 >0.05 ND(0.029) J31400522 OPCA-MW-8R 4/9/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 12.0% 60.0% to 141% ND(0.010) J

Hexachlorophene ICAL RRF 0.020 >0.05 ND(0.025) J31400528 78-6R 4/9/2014 Water Tier II Yes 2,4-Dimethylphenol LCS/LCSD RPD 49.0% <30% ND(0.0050) J

3,3'-Dichlorobenzidine LCS/LCSD RPD 36.0% <30% ND(0.010) JHexachlorocyclopentadiene LCS/LCSD RPD 96.0% <30% ND(0.010) JHexachlorocyclopentadiene LCS/LCSD %R 11.0%, 33.0% 60.0% to 141% ND(0.010) JHexachlorophene ICAL RRF 0.020 >0.05 ND(0.025) J

31400528 H78B-15 4/10/2014 Water Tier II Yes 2,4-Dimethylphenol LCS/LCSD RPD 49.0% <30% ND(0.0050) J3,3'-Dichlorobenzidine LCS/LCSD RPD 36.0% <30% ND(0.010) JHexachlorocyclopentadiene LCS/LCSD RPD 96.0% <30% ND(0.010) JHexachlorocyclopentadiene LCS/LCSD %R 11.0%, 33.0% 60.0% to 141% ND(0.010) JHexachlorophene ICAL RRF 0.020 >0.05 ND(0.025) J

31400528 OPCA-MW-1RR 4/10/2014 Water Tier II Yes 2,4-Dimethylphenol LCS/LCSD RPD 49.0% <30% ND(0.0052) J3,3'-Dichlorobenzidine LCS/LCSD RPD 36.0% <30% ND(0.010) JHexachlorocyclopentadiene LCS/LCSD RPD 96.0% <30% ND(0.010) JHexachlorocyclopentadiene LCS/LCSD %R 11.0%, 33.0% 60.0% to 141% ND(0.010) JHexachlorophene ICAL RRF 0.020 >0.05 ND(0.026) J

31400528 OPCA-MW-6 4/10/2014 Water Tier II Yes 2,4-Dimethylphenol LCS/LCSD RPD 49.0% <30% ND(0.0051) J3,3'-Dichlorobenzidine LCS/LCSD RPD 36.0% <30% ND(0.010) JHexachlorocyclopentadiene LCS/LCSD RPD 96.0% <30% ND(0.010) JHexachlorocyclopentadiene LCS/LCSD %R 11.0%, 33.0% 60.0% to 141% ND(0.010) JHexachlorophene ICAL RRF 0.020 >0.05 ND(0.025) J

31400546 OPCA Rinse Blank 4/14/2014 Water Tier II Yes Hexachlorocyclopentadiene LCS %R 22.0% 60.0% to 141% ND(0.011) JHexachlorophene ICAL RRF 0.020 >0.05 ND(0.028) J

PCDDs/PCDFsA6596 78-1 4/9/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDD Method Blank - - ND(0.0000000018)

1,2,3,7,8,9-HxCDD Remove X Qualifier (EMPC) - - 0.0000000012 JHpCDDs (total) Method Blank - - 0.0000000011 JOCDD Method Blank - - ND(0.0000000048)PeCDFs (total) Remove X Qualifier (EMPC) - - 0.0000000027 J

A6596 DUP 040914 4/9/2014 Water Tier II Yes OCDD Method Blank - - ND(0.0000000031) Duplicate of GMA4-6A6596 GMA4-6 4/9/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDD Method Blank - - ND(0.0000000013)

1,2,3,4,6,7,8-HpCDF Method Blank - - ND(0.00000000054)1,2,3,6,7,8-HxCDF Remove X Qualifier (EMPC) - - 0.00000000063 J1,2,3,7,8,9-HxCDD Remove X Qualifier (EMPC) - - 0.00000000098 JHpCDFs (total) Method Blank - - ND(0.00000000054)OCDD Method Blank - - ND(0.0000000049)

A6596 OPCA-MW-2R 4/8/2014 Water Tier II Yes OCDD Method Blank - - ND(0.0000000060)A6596 OPCA-MW-3 4/8/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDD Method Blank - - ND(0.0000000012)

HpCDDs (total) Method Blank - - ND(0.0000000012)OCDD Method Blank - - ND(0.0000000040)

A6596 OPCA-MW-4 4/8/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDF Method Blank - - ND(0.00000000074)2,3,7,8-TCDF Remove X Qualifier (EMPC) - - 0.0000000023 JHpCDFs (total) Method Blank - - ND(0.00000000074)OCDD Method Blank - - ND(0.0000000063)PeCDFs (total) Remove X Qualifier (EMPC) - - 0.000000071 JTCDFs (total) Remove X Qualifier (EMPC) - - 0.000000024 J

A6596 OPCA-MW-5R 4/8/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDD Method Blank - - ND(0.0000000044)1,2,3,4,7,8,9-HpCDF Remove X Qualifier (EMPC) - - 0.0000000013 J1,2,3,4,7,8-HxCDF Remove X Qualifier (EMPC) - - 0.0000000023 J1,2,3,6,7,8-HxCDF Remove X Qualifier (EMPC) - - 0.0000000016 J1,2,3,7,8,9-HxCDD Remove X Qualifier (EMPC) - - 0.0000000011 J2,3,4,6,7,8-HxCDF Remove X Qualifier (EMPC) - - 0.0000000019 J

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 9 of 10 7/25/2014

Page 125: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Sample Delivery

Group No. Sample ID Date Collected MatrixValidation

Level Qualification Compound QA/QC Parameter Value Control Limits Qualified Result Notes

Table B-1Analytical Data Validation SummaryGroundwater Management Area OPCA Wells - Spring 2014

General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

PCDDs/PCDFs (continued)A6596 OPCA-MW-5R 4/8/2014 Water Tier II Yes HpCDDs (total) Method Blank - - 0.0000000053 J

HpCDFs (total) Remove X Qualifier (EMPC) - - 0.0000000089 JHxCDDs (total) Remove X Qualifier (EMPC) - - 0.0000000049 JHxCDFs (total) Remove X Qualifier (EMPC) - - 0.000000018 JOCDF Remove X Qualifier (EMPC) - - 0.0000000041 JPeCDFs (total) Remove X Qualifier (EMPC) - - 0.000000015 JTCDFs (total) Remove X Qualifier (EMPC) - - 0.0000000035 J

A6596 OPCA-MW-7 4/8/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDD Method Blank - - ND(0.0000000013)1,2,3,4,6,7,8-HpCDF Method Blank - - ND(0.0000000014)1,2,3,4,7,8-HxCDF Remove X Qualifier (EMPC) - - 0.00000000054 JHpCDDs (total) Method Blank - - 0.0000000016 JHpCDFs (total) Method Blank - - ND(0.0000000014)OCDD Method Blank - - ND(0.0000000085)

A6596 OPCA-MW-8R 4/9/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDD Method Blank - - ND(0.0000000017)1,2,3,4,6,7,8-HpCDF Method Blank - - ND(0.00000000046)1,2,3,7,8,9-HxCDD Remove X Qualifier (EMPC) - - 0.0000000013 JHpCDDs (total) Method Blank - - ND(0.0000000017)HpCDFs (total) Method Blank - - ND(0.00000000046)HxCDDs (total) Remove X Qualifier (EMPC) - - 0.0000000027 JOCDD Method Blank - - ND(0.000000011)

A6602 78-6R 4/9/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDF Method Blank - - ND(0.00000000057)1,2,3,7,8,9-HxCDD Remove X Qualifier (EMPC) - - 0.00000000095 JOCDD Method Blank - - ND(0.0000000074)HpCDFs (total) Method Blank - - ND(0.00000000057)

A6602 H78B-15 4/10/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDF Method Blank - - ND(0.00000000097)OCDD Method Blank - - ND(0.0000000035)HpCDFs (total) Method Blank - - ND(0.00000000097)

A6602 OPCA-MW-1RR 4/10/2014 Water Tier II Yes OCDD Method Blank - - ND(0.0000000049)A6602 OPCA-MW-6 4/10/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDF Method Blank - - ND(0.00000000090)

OCDD Method Blank - - ND(0.0000000067)HpCDFs (total) Method Blank - - ND(0.00000000090)

A6607 OPCA Rinse Blank 4/14/2014 Water Tier II Yes 1,2,3,4,6,7,8-HpCDF Remove X Qualifier (EMPC) - - 0.00000000047 JCyanides31400522 78-1 (Filtered) 4/9/2014 Water Tier II No31400522 DUP 040914 (Filtered) 4/9/2014 Water Tier II No Duplicate of GMA4-6 (Filtered)31400522 GMA4-6 (Filtered) 4/9/2014 Water Tier II No31400522 OPCA-MW-2R (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-3 (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-4 (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-5R (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-7 (Filtered) 4/8/2014 Water Tier II No31400522 OPCA-MW-8R (Filtered) 4/9/2014 Water Tier II No31400528 78-6R (Filtered) 4/9/2014 Water Tier II No31400528 H78B-15 (Filtered) 4/10/2014 Water Tier II No31400528 OPCA-MW-1RR (Filtered) 4/10/2014 Water Tier II No31400528 OPCA-MW-6 (Filtered) 4/10/2014 Water Tier II No31400546 OPCA Rinse Blank (Filtered) 4/14/2014 Water Tier II NoSulfides31400522 78-1 4/9/2014 Water Tier II No31400522 DUP 040914 4/9/2014 Water Tier II No Duplicate of GMA4-631400522 GMA4-6 4/9/2014 Water Tier II No31400522 OPCA-MW-2R 4/8/2014 Water Tier II No31400522 OPCA-MW-3 4/8/2014 Water Tier II No31400522 OPCA-MW-4 4/8/2014 Water Tier II No31400522 OPCA-MW-5R 4/8/2014 Water Tier II No31400522 OPCA-MW-7 4/8/2014 Water Tier II No31400522 OPCA-MW-8R 4/9/2014 Water Tier II No31400528 78-6R 4/9/2014 Water Tier II No31400528 H78B-15 4/10/2014 Water Tier II No31400528 OPCA-MW-1RR 4/10/2014 Water Tier II No31400528 OPCA-MW-6 4/10/2014 Water Tier II No31400546 OPCA Rinse Blank 4/14/2014 Water Tier II No

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxBTbl 1.xlsx Page 10 of 10 7/25/2014

Page 126: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Appendix C

Groundwater Analytical Results – Spring 2014

Page 127: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: 78-1 78-6R GMA4-6Parameter Date Collected: 04/09/14 04/09/14 04/09/14Volatile Organics1,1,1,2-Tetrachloroethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,1,1-Trichloroethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,1,2,2-Tetrachloroethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,1,2-Trichloroethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,1-Dichloroethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,1-Dichloroethene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,2,3-Trichloropropane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,2-Dibromo-3-chloropropane ND(0.0050) ND(0.0050) ND(0.0050) [ND(0.0050)]1,2-Dibromoethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,2-Dichloroethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,2-Dichloropropane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]1,4-Dioxane ND(0.10) J ND(0.10) J ND(0.10) J [ND(0.10) J]2-Butanone ND(0.025) ND(0.025) ND(0.025) [ND(0.025)]2-Chloro-1,3-butadiene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]2-Chloroethylvinylether ND(0.025) ND(0.025) R [ND(0.025)]2-Hexanone ND(0.0050) ND(0.0050) ND(0.0050) [ND(0.0050)]3-Chloropropene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]4-Methyl-2-pentanone ND(0.0050) ND(0.0050) ND(0.0050) [ND(0.0050)]Acetone ND(0.025) 0.0021 J ND(0.025) [ND(0.025)]Acetonitrile ND(0.020) ND(0.020) ND(0.020) [ND(0.020)]Acrolein ND(0.025) ND(0.025) ND(0.025) [ND(0.025)]Acrylonitrile ND(0.025) ND(0.025) ND(0.025) [ND(0.025)]Benzene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Bromodichloromethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Bromoform ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Bromomethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Carbon Disulfide ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Carbon Tetrachloride ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Chlorobenzene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Chloroethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Chloroform ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Chloromethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]cis-1,3-Dichloropropene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Dibromochloromethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Dibromomethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Dichlorodifluoromethane ND(0.0050) ND(0.0050) ND(0.0050) [ND(0.0050)]Ethyl Methacrylate ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Ethylbenzene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Iodomethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Isobutanol ND(0.050) ND(0.050) ND(0.050) [ND(0.050)]Methacrylonitrile ND(0.010) ND(0.010) ND(0.010) [ND(0.010)]Methyl Methacrylate ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Methylene Chloride ND(0.0050) ND(0.0050) ND(0.0050) [ND(0.0050)]Propionitrile ND(0.020) ND(0.020) ND(0.020) [ND(0.020)]Styrene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Tetrachloroethene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Toluene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]trans-1,2-Dichloroethene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]trans-1,3-Dichloropropene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]trans-1,4-Dichloro-2-butene ND(0.0050) ND(0.0050) ND(0.0050) [ND(0.0050)]Trichloroethene ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Trichlorofluoromethane ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Vinyl Acetate ND(0.0020) ND(0.0020) ND(0.0020) [ND(0.0020)]Vinyl Chloride ND(0.0010) ND(0.0010) ND(0.0010) [ND(0.0010)]Xylenes (total) ND(0.0020) ND(0.0020) ND(0.0020) [ND(0.0020)]Total VOCs ND(0.10) 0.0021 J ND(0.10) [ND(0.10)]

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 1 of 17

7/25/2014

Page 128: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: 78-1 78-6R GMA4-6Parameter Date Collected: 04/09/14 04/09/14 04/09/14

PCBs-FilteredAroclor-1016 ND(0.000067) ND(0.000066) ND(0.000068) [ND(0.000070)]Aroclor-1221 ND(0.000067) ND(0.000066) ND(0.000068) [ND(0.000070)]Aroclor-1232 ND(0.000067) ND(0.000066) ND(0.000068) [ND(0.000070)]Aroclor-1242 ND(0.000067) ND(0.000066) ND(0.000068) [ND(0.000070)]Aroclor-1248 ND(0.000067) ND(0.000066) ND(0.000068) [ND(0.000070)]Aroclor-1254 ND(0.000067) ND(0.000066) ND(0.000068) [ND(0.000070)]Aroclor-1260 ND(0.000067) ND(0.000066) ND(0.000068) [ND(0.000070)]Total PCBs ND(0.000067) ND(0.000066) ND(0.000068) [ND(0.000070)]Semivolatile Organics1,2,4,5-Tetrachlorobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]1,2,4-Trichlorobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]1,2-Dichlorobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]1,3,5-Trinitrobenzene ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]1,3-Dichlorobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]1,3-Dinitrobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]1,4-Dichlorobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]1,4-Naphthoquinone ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]1-Naphthylamine ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]2,3,4,6-Tetrachlorophenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2,4,5-Trichlorophenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2,4,6-Trichlorophenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2,4-Dichlorophenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2,4-Dimethylphenol ND(0.0053) ND(0.0050) J ND(0.0053) [ND(0.0059)]2,4-Dinitrophenol ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]2,4-Dinitrotoluene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2,6-Dichlorophenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2,6-Dinitrotoluene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2-Acetylaminofluorene ND(0.011) ND(0.010) ND(0.011) [ND(0.012)]2-Chloronaphthalene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2-Chlorophenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2-Methylnaphthalene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2-Methylphenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2-Naphthylamine ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]2-Nitroaniline ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2-Nitrophenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]2-Picoline ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]3&4-Methylphenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]3,3'-Dichlorobenzidine ND(0.011) ND(0.010) J ND(0.011) [ND(0.012)]3,3'-Dimethylbenzidine ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]3-Methylcholanthrene ND(0.011) ND(0.010) ND(0.011) [ND(0.012)]3-Nitroaniline ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]4,6-Dinitro-2-methylphenol ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]4-Aminobiphenyl ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]4-Bromophenyl-phenylether ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]4-Chloro-3-Methylphenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]4-Chloroaniline ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]4-Chlorobenzilate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]4-Chlorophenyl-phenylether ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]4-Nitroaniline ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]4-Nitrophenol ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]4-Nitroquinoline-1-oxide ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]4-Phenylenediamine ND(0.011) ND(0.010) ND(0.011) [ND(0.012)]5-Nitro-o-toluidine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]7,12-Dimethylbenz(a)anthracene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]a,a'-Dimethylphenethylamine ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]Acenaphthene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Acenaphthylene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Acetophenone ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Aniline ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Anthracene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Aramite ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Azobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 2 of 17

7/25/2014

Page 129: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: 78-1 78-6R GMA4-6Parameter Date Collected: 04/09/14 04/09/14 04/09/14

Semivolatile Organics (continued)Benzidine ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]Benzo(a)anthracene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Benzo(a)pyrene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Benzo(b)fluoranthene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Benzo(g,h,i)perylene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Benzo(k)fluoranthene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Benzyl Alcohol ND(0.011) ND(0.010) ND(0.011) [ND(0.012)]bis(2-Chloroethoxy)methane ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]bis(2-Chloroethyl)ether ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]bis(2-Chloroisopropyl)ether ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]bis(2-Ethylhexyl)phthalate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Butylbenzylphthalate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Chrysene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Diallate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Dibenzo(a,h)anthracene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Dibenzofuran ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Diethylphthalate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Dimethylphthalate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Di-n-Butylphthalate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Di-n-Octylphthalate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Diphenylamine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Ethyl Methanesulfonate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Fluoranthene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Fluorene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Hexachlorobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Hexachlorobutadiene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Hexachlorocyclopentadiene ND(0.011) J ND(0.010) J ND(0.011) J [ND(0.012) J]Hexachloroethane ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Hexachlorophene ND(0.027) J ND(0.025) J ND(0.027) J [ND(0.029) J]Hexachloropropene ND(0.011) ND(0.010) ND(0.011) [ND(0.012)]Indeno(1,2,3-cd)pyrene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Isodrin ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Isophorone ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Isosafrole ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Methapyrilene ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]Methyl Methanesulfonate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Naphthalene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Nitrobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]N-Nitrosodiethylamine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]N-Nitrosodimethylamine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]N-Nitroso-di-n-butylamine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]N-Nitroso-di-n-propylamine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]N-Nitrosomethylethylamine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]N-Nitrosomorpholine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]N-Nitrosopiperidine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]N-Nitrosopyrrolidine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]o,o,o-Triethylphosphorothioate ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]o-Toluidine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]p-Dimethylaminoazobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Pentachlorobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Pentachloroethane ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Pentachloronitrobenzene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Pentachlorophenol ND(0.027) ND(0.025) ND(0.027) [ND(0.029)]Phenacetin ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Phenanthrene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Phenol ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Pronamide ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Pyrene ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Pyridine ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Safrole ND(0.0053) ND(0.0050) ND(0.0053) [ND(0.0059)]Thionazin ND(0.011) ND(0.010) ND(0.011) [ND(0.012)]

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 3 of 17

7/25/2014

Page 130: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: 78-1 78-6R GMA4-6Parameter Date Collected: 04/09/14 04/09/14 04/09/14

Furans2,3,7,8-TCDF ND(0.00000000056) ND(0.00000000027) ND(0.00000000065) [ND(0.00000000054)]TCDFs (total) ND(0.00000000056) ND(0.00000000027) ND(0.00000000065) [ND(0.00000000054)]1,2,3,7,8-PeCDF 0.0000000015 J ND(0.00000000043) ND(0.00000000053) [ND(0.00000000051)]2,3,4,7,8-PeCDF ND(0.00000000066) ND(0.00000000043) ND(0.00000000053) [ND(0.00000000051)]PeCDFs (total) 0.0000000027 J ND(0.00000000043) 0.0000000018 [ND(0.00000000051)]1,2,3,4,7,8-HxCDF ND(0.00000000051) ND(0.00000000028) ND(0.00000000049) [ND(0.00000000053)]1,2,3,6,7,8-HxCDF ND(0.00000000050) ND(0.00000000026) 0.00000000063 J [ND(0.00000000048)]1,2,3,7,8,9-HxCDF ND(0.00000000073) ND(0.00000000037) ND(0.00000000071) [ND(0.00000000079)]2,3,4,6,7,8-HxCDF ND(0.00000000055) ND(0.00000000030) ND(0.00000000053) [ND(0.00000000055)]HxCDFs (total) ND(0.00000000056) ND(0.00000000030) ND(0.00000000054) [ND(0.00000000057)]1,2,3,4,6,7,8-HpCDF ND(0.00000000046) ND(0.00000000057) ND(0.00000000054) [ND(0.00000000051)]1,2,3,4,7,8,9-HpCDF ND(0.00000000086) ND(0.00000000062) ND(0.00000000077) [ND(0.00000000093)]HpCDFs (total) ND(0.00000000062) ND(0.00000000057) ND(0.00000000054) [ND(0.00000000068)]OCDF ND(0.0000000019) ND(0.00000000097) ND(0.0000000017) [ND(0.0000000015)]Dioxins2,3,7,8-TCDD ND(0.00000000069) ND(0.00000000052) ND(0.00000000080) [ND(0.00000000083)]TCDDs (total) 0.0000000013 ND(0.00000000052) ND(0.00000000080) [0.0000000015]1,2,3,7,8-PeCDD ND(0.00000000084) ND(0.00000000046) ND(0.00000000079) [ND(0.00000000091)]PeCDDs (total) ND(0.00000000084) ND(0.00000000046) ND(0.00000000079) [ND(0.00000000091)]1,2,3,4,7,8-HxCDD ND(0.00000000072) ND(0.00000000040) ND(0.00000000080) [ND(0.00000000075)]1,2,3,6,7,8-HxCDD ND(0.00000000075) ND(0.00000000042) ND(0.00000000078) [ND(0.00000000080)]1,2,3,7,8,9-HxCDD 0.0000000012 J 0.00000000095 J 0.00000000098 J [0.0000000015 J]HxCDDs (total) ND(0.00000000075) ND(0.00000000043) ND(0.00000000082) [0.0000000015]1,2,3,4,6,7,8-HpCDD ND(0.0000000018) ND(0.00000000056) ND(0.0000000013) [ND(0.0000000012)]HpCDDs (total) 0.0000000011 J ND(0.00000000056) ND(0.0000000012) [ND(0.0000000012)]OCDD ND(0.0000000048) ND(0.0000000074) ND(0.0000000049) [ND(0.0000000031)]Total TEQs (1998 WHO TEFs) 0.0000000014 0.00000000083 0.0000000013 [0.0000000014]Inorganics-UnfilteredSulfide ND(2.00) ND(2.00) ND(2.00) [ND(2.00)]Inorganics-FilteredAntimony ND(0.0400) ND(0.0400) ND(0.0400) [ND(0.0400)]Arsenic ND(0.0100) J ND(0.0100) J ND(0.0100) J [ND(0.0100) J]Barium ND(0.100) 0.113 ND(0.100) [ND(0.100)]Beryllium ND(0.0100) J ND(0.0100) J ND(0.0100) J [0.0403 J]Cadmium ND(0.000500) 0.000200 J ND(0.000500) [ND(0.000500)]Chromium ND(0.0100) J 0.00148 B ND(0.0100) J [ND(0.0100) J]Cobalt ND(0.0100) J ND(0.0100) J ND(0.0100) J [ND(0.0100) J]Copper ND(0.0100) J ND(0.0100) J ND(0.0100) J [ND(0.0100) J]Cyanide-MADEP (PAC) ND(0.0100) ND(0.0100) ND(0.0100) [ND(0.0100)]Lead ND(0.0100) J ND(0.0100) J ND(0.0100) J [ND(0.0100) J]Mercury ND(0.000150) ND(0.000150) ND(0.000150) [ND(0.000150)]Nickel ND(0.0100) J ND(0.0100) ND(0.0100) J [ND(0.0100) J]Selenium ND(0.0200) J ND(0.0200) J ND(0.0200) J [ND(0.0200) J]Silver ND(0.000500) ND(0.000500) J ND(0.000500) [ND(0.000500)]Thallium ND(0.0100) J ND(0.0100) J 0.0105 J [ND(0.0100) J]Tin ND(0.100) ND(0.100) ND(0.100) [ND(0.100)]Vanadium ND(0.0500) ND(0.0500) ND(0.0500) [ND(0.0500)]Zinc 0.00351 B ND(0.0200) ND(0.0200) [0.00489 B]

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 4 of 17

7/25/2014

Page 131: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: H78B-15 OPCA-MW-1RR OPCA-MW-2RParameter Date Collected: 04/10/14 04/10/14 04/08/14Volatile Organics1,1,1,2-Tetrachloroethane ND(0.0010) ND(0.040) ND(0.0010)1,1,1-Trichloroethane ND(0.0010) ND(0.040) ND(0.0010)1,1,2,2-Tetrachloroethane ND(0.0010) ND(0.040) ND(0.0010)1,1,2-Trichloroethane ND(0.0010) ND(0.040) ND(0.0010)1,1-Dichloroethane ND(0.0010) ND(0.040) ND(0.0010)1,1-Dichloroethene ND(0.0010) ND(0.040) ND(0.0010)1,2,3-Trichloropropane ND(0.0010) ND(0.040) ND(0.0010)1,2-Dibromo-3-chloropropane ND(0.0050) ND(0.20) ND(0.0050)1,2-Dibromoethane ND(0.0010) ND(0.040) ND(0.0010)1,2-Dichloroethane ND(0.0010) ND(0.040) ND(0.0010)1,2-Dichloropropane ND(0.0010) ND(0.040) ND(0.0010)1,4-Dioxane ND(0.10) J ND(4.0) J ND(0.10) J2-Butanone ND(0.025) ND(1.0) ND(0.025)2-Chloro-1,3-butadiene ND(0.0010) ND(0.040) ND(0.0010)2-Chloroethylvinylether ND(0.025) ND(1.0) ND(0.025)2-Hexanone ND(0.0050) ND(0.20) ND(0.0050)3-Chloropropene ND(0.0010) ND(0.040) ND(0.0010)4-Methyl-2-pentanone ND(0.0050) ND(0.20) ND(0.0050)Acetone ND(0.025) ND(1.0) ND(0.025)Acetonitrile ND(0.020) ND(0.80) ND(0.020)Acrolein ND(0.025) ND(1.0) ND(0.025)Acrylonitrile ND(0.025) ND(1.0) ND(0.025)Benzene ND(0.0010) ND(0.040) ND(0.0010)Bromodichloromethane ND(0.0010) ND(0.040) ND(0.0010)Bromoform ND(0.0010) ND(0.040) ND(0.0010)Bromomethane ND(0.0010) ND(0.040) ND(0.0010)Carbon Disulfide ND(0.0010) ND(0.040) ND(0.0010)Carbon Tetrachloride ND(0.0010) ND(0.040) ND(0.0010)Chlorobenzene ND(0.0010) ND(0.040) ND(0.0010)Chloroethane ND(0.0010) ND(0.040) ND(0.0010)Chloroform ND(0.0010) 0.0088 J ND(0.0010)Chloromethane ND(0.0010) ND(0.040) ND(0.0010)cis-1,3-Dichloropropene ND(0.0010) ND(0.040) ND(0.0010)Dibromochloromethane ND(0.0010) ND(0.040) ND(0.0010)Dibromomethane ND(0.0010) ND(0.040) ND(0.0010)Dichlorodifluoromethane ND(0.0050) ND(0.20) ND(0.0050)Ethyl Methacrylate ND(0.0010) ND(0.040) ND(0.0010)Ethylbenzene ND(0.0010) ND(0.040) ND(0.0010)Iodomethane ND(0.0010) ND(0.040) ND(0.0010)Isobutanol ND(0.050) ND(2.0) ND(0.050)Methacrylonitrile ND(0.010) ND(0.40) ND(0.010)Methyl Methacrylate ND(0.0010) ND(0.040) ND(0.0010)Methylene Chloride ND(0.0050) ND(0.20) ND(0.0050)Propionitrile ND(0.020) ND(0.80) ND(0.020)Styrene ND(0.0010) ND(0.040) ND(0.0010)Tetrachloroethene ND(0.0010) 2.4 ND(0.0010)Toluene ND(0.0010) ND(0.040) ND(0.0010)trans-1,2-Dichloroethene ND(0.0010) ND(0.040) ND(0.0010)trans-1,3-Dichloropropene ND(0.0010) ND(0.040) ND(0.0010)trans-1,4-Dichloro-2-butene ND(0.0050) ND(0.20) ND(0.0050)Trichloroethene ND(0.0010) 0.027 J ND(0.0010)Trichlorofluoromethane ND(0.0010) ND(0.040) ND(0.0010)Vinyl Acetate ND(0.0020) ND(0.080) ND(0.0020)Vinyl Chloride ND(0.0010) ND(0.040) ND(0.0010)Xylenes (total) ND(0.0020) ND(0.080) ND(0.0020)Total VOCs ND(0.10) 2.4 J ND(0.10)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 5 of 17

7/25/2014

Page 132: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: H78B-15 OPCA-MW-1RR OPCA-MW-2RParameter Date Collected: 04/10/14 04/10/14 04/08/14

PCBs-FilteredAroclor-1016 ND(0.000066) ND(0.000067) ND(0.000070)Aroclor-1221 ND(0.000066) ND(0.000067) ND(0.000070)Aroclor-1232 ND(0.000066) ND(0.000067) ND(0.000070)Aroclor-1242 ND(0.000066) ND(0.000067) ND(0.000070)Aroclor-1248 ND(0.000066) ND(0.000067) ND(0.000070)Aroclor-1254 ND(0.000066) ND(0.000067) ND(0.000070)Aroclor-1260 ND(0.000066) ND(0.000067) ND(0.000070)Total PCBs ND(0.000066) ND(0.000067) ND(0.000070)Semivolatile Organics1,2,4,5-Tetrachlorobenzene ND(0.0050) ND(0.0052) ND(0.0057)1,2,4-Trichlorobenzene ND(0.0050) ND(0.0052) ND(0.0057)1,2-Dichlorobenzene ND(0.0050) ND(0.0052) ND(0.0057)1,3,5-Trinitrobenzene ND(0.025) ND(0.026) ND(0.028)1,3-Dichlorobenzene ND(0.0050) ND(0.0052) ND(0.0057)1,3-Dinitrobenzene ND(0.0050) ND(0.0052) ND(0.0057)1,4-Dichlorobenzene ND(0.0050) ND(0.0052) ND(0.0057)1,4-Naphthoquinone ND(0.0050) ND(0.0052) ND(0.0057)1-Naphthylamine ND(0.025) ND(0.026) ND(0.028)2,3,4,6-Tetrachlorophenol ND(0.0050) ND(0.0052) ND(0.0057)2,4,5-Trichlorophenol ND(0.0050) ND(0.0052) ND(0.0057)2,4,6-Trichlorophenol ND(0.0050) ND(0.0052) ND(0.0057)2,4-Dichlorophenol ND(0.0050) ND(0.0052) ND(0.0057)2,4-Dimethylphenol ND(0.0050) J ND(0.0052) J ND(0.0057)2,4-Dinitrophenol ND(0.025) ND(0.026) ND(0.028)2,4-Dinitrotoluene ND(0.0050) ND(0.0052) ND(0.0057)2,6-Dichlorophenol ND(0.0050) ND(0.0052) ND(0.0057)2,6-Dinitrotoluene ND(0.0050) ND(0.0052) ND(0.0057)2-Acetylaminofluorene ND(0.010) ND(0.010) ND(0.011)2-Chloronaphthalene ND(0.0050) ND(0.0052) ND(0.0057)2-Chlorophenol ND(0.0050) ND(0.0052) ND(0.0057)2-Methylnaphthalene ND(0.0050) ND(0.0052) ND(0.0057)2-Methylphenol ND(0.0050) ND(0.0052) ND(0.0057)2-Naphthylamine ND(0.025) ND(0.026) ND(0.028)2-Nitroaniline ND(0.0050) ND(0.0052) ND(0.0057)2-Nitrophenol ND(0.0050) ND(0.0052) ND(0.0057)2-Picoline ND(0.0050) ND(0.0052) ND(0.0057)3&4-Methylphenol ND(0.0050) ND(0.0052) ND(0.0057)3,3'-Dichlorobenzidine ND(0.010) J ND(0.010) J ND(0.011)3,3'-Dimethylbenzidine ND(0.025) ND(0.026) ND(0.028)3-Methylcholanthrene ND(0.010) ND(0.010) ND(0.011)3-Nitroaniline ND(0.025) ND(0.026) ND(0.028)4,6-Dinitro-2-methylphenol ND(0.025) ND(0.026) ND(0.028)4-Aminobiphenyl ND(0.0050) ND(0.0052) ND(0.0057)4-Bromophenyl-phenylether ND(0.0050) ND(0.0052) ND(0.0057)4-Chloro-3-Methylphenol ND(0.0050) ND(0.0052) ND(0.0057)4-Chloroaniline ND(0.025) ND(0.026) ND(0.028)4-Chlorobenzilate ND(0.0050) ND(0.0052) ND(0.0057)4-Chlorophenyl-phenylether ND(0.0050) ND(0.0052) ND(0.0057)4-Nitroaniline ND(0.025) ND(0.026) ND(0.028)4-Nitrophenol ND(0.025) ND(0.026) ND(0.028)4-Nitroquinoline-1-oxide ND(0.025) ND(0.026) ND(0.028)4-Phenylenediamine ND(0.010) ND(0.010) ND(0.011)5-Nitro-o-toluidine ND(0.0050) ND(0.0052) ND(0.0057)7,12-Dimethylbenz(a)anthracene ND(0.0050) ND(0.0052) ND(0.0057)a,a'-Dimethylphenethylamine ND(0.025) ND(0.026) ND(0.028)Acenaphthene ND(0.0050) ND(0.0052) ND(0.0057)Acenaphthylene ND(0.0050) ND(0.0052) ND(0.0057)Acetophenone ND(0.0050) ND(0.0052) ND(0.0057)Aniline ND(0.0050) ND(0.0052) ND(0.0057)Anthracene ND(0.0050) ND(0.0052) ND(0.0057)Aramite ND(0.0050) ND(0.0052) ND(0.0057)Azobenzene ND(0.0050) ND(0.0052) ND(0.0057)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 6 of 17

7/25/2014

Page 133: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: H78B-15 OPCA-MW-1RR OPCA-MW-2RParameter Date Collected: 04/10/14 04/10/14 04/08/14

Semivolatile Organics (continued)Benzidine ND(0.025) ND(0.026) ND(0.028)Benzo(a)anthracene ND(0.0050) ND(0.0052) ND(0.0057)Benzo(a)pyrene ND(0.0050) ND(0.0052) ND(0.0057)Benzo(b)fluoranthene ND(0.0050) ND(0.0052) ND(0.0057)Benzo(g,h,i)perylene ND(0.0050) ND(0.0052) ND(0.0057)Benzo(k)fluoranthene ND(0.0050) ND(0.0052) ND(0.0057)Benzyl Alcohol ND(0.010) ND(0.010) ND(0.011)bis(2-Chloroethoxy)methane ND(0.0050) ND(0.0052) ND(0.0057)bis(2-Chloroethyl)ether ND(0.0050) ND(0.0052) ND(0.0057)bis(2-Chloroisopropyl)ether ND(0.0050) ND(0.0052) ND(0.0057)bis(2-Ethylhexyl)phthalate ND(0.0050) ND(0.0052) ND(0.0057)Butylbenzylphthalate ND(0.0050) ND(0.0052) ND(0.0057)Chrysene ND(0.0050) ND(0.0052) ND(0.0057)Diallate ND(0.0050) ND(0.0052) ND(0.0057)Dibenzo(a,h)anthracene ND(0.0050) ND(0.0052) ND(0.0057)Dibenzofuran ND(0.0050) ND(0.0052) ND(0.0057)Diethylphthalate ND(0.0050) ND(0.0052) ND(0.0057)Dimethylphthalate ND(0.0050) ND(0.0052) ND(0.0057)Di-n-Butylphthalate ND(0.0050) ND(0.0052) ND(0.0057)Di-n-Octylphthalate ND(0.0050) ND(0.0052) ND(0.0057)Diphenylamine ND(0.0050) ND(0.0052) ND(0.0057)Ethyl Methanesulfonate ND(0.0050) ND(0.0052) ND(0.0057)Fluoranthene ND(0.0050) ND(0.0052) ND(0.0057)Fluorene ND(0.0050) ND(0.0052) ND(0.0057)Hexachlorobenzene ND(0.0050) ND(0.0052) ND(0.0057)Hexachlorobutadiene ND(0.0050) ND(0.0052) ND(0.0057)Hexachlorocyclopentadiene ND(0.010) J ND(0.010) J ND(0.011) JHexachloroethane ND(0.0050) ND(0.0052) ND(0.0057)Hexachlorophene ND(0.025) J ND(0.026) J ND(0.028) JHexachloropropene ND(0.010) ND(0.010) ND(0.011)Indeno(1,2,3-cd)pyrene ND(0.0050) ND(0.0052) ND(0.0057)Isodrin ND(0.0050) ND(0.0052) ND(0.0057)Isophorone ND(0.0050) ND(0.0052) ND(0.0057)Isosafrole ND(0.0050) ND(0.0052) ND(0.0057)Methapyrilene ND(0.025) ND(0.026) ND(0.028)Methyl Methanesulfonate ND(0.0050) ND(0.0052) ND(0.0057)Naphthalene ND(0.0050) ND(0.0052) ND(0.0057)Nitrobenzene ND(0.0050) ND(0.0052) ND(0.0057)N-Nitrosodiethylamine ND(0.0050) ND(0.0052) ND(0.0057)N-Nitrosodimethylamine ND(0.0050) ND(0.0052) ND(0.0057)N-Nitroso-di-n-butylamine ND(0.0050) ND(0.0052) ND(0.0057)N-Nitroso-di-n-propylamine ND(0.0050) ND(0.0052) ND(0.0057)N-Nitrosomethylethylamine ND(0.0050) ND(0.0052) ND(0.0057)N-Nitrosomorpholine ND(0.0050) ND(0.0052) ND(0.0057)N-Nitrosopiperidine ND(0.0050) ND(0.0052) ND(0.0057)N-Nitrosopyrrolidine ND(0.0050) ND(0.0052) ND(0.0057)o,o,o-Triethylphosphorothioate ND(0.0050) ND(0.0052) ND(0.0057)o-Toluidine ND(0.0050) ND(0.0052) ND(0.0057)p-Dimethylaminoazobenzene ND(0.0050) ND(0.0052) ND(0.0057)Pentachlorobenzene ND(0.0050) ND(0.0052) ND(0.0057)Pentachloroethane ND(0.0050) ND(0.0052) ND(0.0057)Pentachloronitrobenzene ND(0.0050) ND(0.0052) ND(0.0057)Pentachlorophenol ND(0.025) ND(0.026) ND(0.028)Phenacetin ND(0.0050) ND(0.0052) ND(0.0057)Phenanthrene ND(0.0050) ND(0.0052) ND(0.0057)Phenol ND(0.0050) ND(0.0052) ND(0.0057)Pronamide ND(0.0050) ND(0.0052) ND(0.0057)Pyrene ND(0.0050) ND(0.0052) ND(0.0057)Pyridine ND(0.0050) ND(0.0052) ND(0.0057)Safrole ND(0.0050) ND(0.0052) ND(0.0057)Thionazin ND(0.010) ND(0.010) ND(0.011)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 7 of 17

7/25/2014

Page 134: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: H78B-15 OPCA-MW-1RR OPCA-MW-2RParameter Date Collected: 04/10/14 04/10/14 04/08/14

Furans2,3,7,8-TCDF ND(0.00000000047) ND(0.00000000052) ND(0.00000000084)TCDFs (total) ND(0.00000000047) 0.0000000054 ND(0.00000000084)1,2,3,7,8-PeCDF ND(0.00000000052) ND(0.00000000046) ND(0.00000000087)2,3,4,7,8-PeCDF ND(0.00000000052) ND(0.00000000047) ND(0.00000000081)PeCDFs (total) ND(0.00000000052) ND(0.00000000046) ND(0.00000000084)1,2,3,4,7,8-HxCDF ND(0.00000000046) ND(0.00000000052) ND(0.00000000086)1,2,3,6,7,8-HxCDF ND(0.00000000044) ND(0.00000000046) ND(0.00000000075)1,2,3,7,8,9-HxCDF ND(0.00000000067) ND(0.00000000073) ND(0.0000000012)2,3,4,6,7,8-HxCDF ND(0.00000000050) ND(0.00000000054) ND(0.00000000086)HxCDFs (total) ND(0.00000000051) ND(0.00000000055) ND(0.00000000089)1,2,3,4,6,7,8-HpCDF ND(0.00000000097) ND(0.00000000049) ND(0.00000000080)1,2,3,4,7,8,9-HpCDF ND(0.00000000085) ND(0.00000000090) ND(0.0000000014)HpCDFs (total) ND(0.00000000097) ND(0.00000000066) ND(0.0000000011)OCDF ND(0.0000000014) ND(0.0000000018) ND(0.0000000025)Dioxins2,3,7,8-TCDD ND(0.00000000066) ND(0.00000000066) ND(0.0000000014)TCDDs (total) ND(0.00000000066) ND(0.00000000066) ND(0.0000000014)1,2,3,7,8-PeCDD ND(0.00000000066) ND(0.00000000084) ND(0.0000000012)PeCDDs (total) ND(0.00000000066) ND(0.00000000084) ND(0.0000000012)1,2,3,4,7,8-HxCDD ND(0.00000000067) ND(0.00000000073) ND(0.0000000012)1,2,3,6,7,8-HxCDD ND(0.00000000065) ND(0.00000000072) ND(0.0000000013)1,2,3,7,8,9-HxCDD ND(0.00000000070) ND(0.00000000077) ND(0.0000000014)HxCDDs (total) ND(0.00000000067) ND(0.00000000073) ND(0.0000000013)1,2,3,4,6,7,8-HpCDD ND(0.00000000087) ND(0.00000000075) ND(0.0000000014)HpCDDs (total) ND(0.00000000087) ND(0.00000000075) ND(0.0000000014)OCDD ND(0.0000000035) ND(0.0000000049) ND(0.0000000060)Total TEQs (1998 WHO TEFs) 0.0000000010 0.0000000011 0.0000000019Inorganics-UnfilteredSulfide ND(2.00) ND(2.00) 0.660 BInorganics-FilteredAntimony ND(0.0400) ND(0.0400) ND(0.0400)Arsenic ND(0.0100) J ND(0.0100) J ND(0.0100) JBarium ND(0.100) 0.0401 B ND(0.100)Beryllium ND(0.0100) J ND(0.0100) J ND(0.0100) JCadmium ND(0.000500) J 0.0273 J ND(0.000500)Chromium 0.00127 B 0.00209 B ND(0.0100) JCobalt ND(0.0100) J ND(0.0100) J ND(0.0100) JCopper ND(0.0100) J ND(0.0100) J ND(0.0100) JCyanide-MADEP (PAC) ND(0.0100) ND(0.0100) ND(0.0100)Lead 0.00826 J 0.00982 J ND(0.0100) JMercury ND(0.000150) ND(0.000150) ND(0.000150)Nickel ND(0.0100) ND(0.0100) ND(0.0100) JSelenium ND(0.0200) J ND(0.0200) J 0.00876 JSilver ND(0.000500) J ND(0.000500) J ND(0.000500)Thallium ND(0.0100) J 0.0102 J 0.0107 JTin ND(0.100) ND(0.100) ND(0.100)Vanadium ND(0.0500) ND(0.0500) ND(0.0500)Zinc ND(0.0200) ND(0.0200) ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 8 of 17

7/25/2014

Page 135: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: OPCA-MW-3 OPCA-MW-4 OPCA-MW-5RParameter Date Collected: 04/08/14 4/8-5/9/14 4/8-5/9/14Volatile Organics1,1,1,2-Tetrachloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1,1-Trichloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1,2,2-Tetrachloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1,2-Trichloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1-Dichloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1-Dichloroethene ND(0.0010) ND(0.0010) J ND(0.0010) J1,2,3-Trichloropropane ND(0.0010) ND(0.0010) J ND(0.0010) J1,2-Dibromo-3-chloropropane ND(0.0050) ND(0.0050) J ND(0.0050) J1,2-Dibromoethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,2-Dichloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,2-Dichloropropane ND(0.0010) ND(0.0010) J ND(0.0010) J1,4-Dioxane ND(0.10) J ND(0.10) J ND(0.10) J2-Butanone ND(0.025) ND(0.025) J ND(0.025) J2-Chloro-1,3-butadiene ND(0.0010) ND(0.0010) J ND(0.0010) J2-Chloroethylvinylether ND(0.025) ND(0.025) J ND(0.025) J2-Hexanone ND(0.0050) ND(0.0050) J ND(0.0050) J3-Chloropropene ND(0.0010) ND(0.0010) J ND(0.0010) J4-Methyl-2-pentanone ND(0.0050) ND(0.0050) J ND(0.0050) JAcetone ND(0.025) ND(0.046) J ND(0.038) JAcetonitrile ND(0.020) ND(0.020) J ND(0.020) JAcrolein ND(0.025) ND(0.025) J ND(0.025) JAcrylonitrile ND(0.025) ND(0.025) J ND(0.025) JBenzene ND(0.0010) ND(0.0010) J ND(0.0010) JBromodichloromethane ND(0.0010) ND(0.0010) J ND(0.0010) JBromoform ND(0.0010) ND(0.0010) J ND(0.0010) JBromomethane ND(0.0010) ND(0.0010) J ND(0.0010) JCarbon Disulfide ND(0.0010) ND(0.0010) J ND(0.0010) JCarbon Tetrachloride ND(0.0010) ND(0.0010) J ND(0.0010) JChlorobenzene ND(0.0010) ND(0.0010) J 0.00036 JChloroethane ND(0.0010) ND(0.0010) J ND(0.0010) JChloroform ND(0.0010) ND(0.0010) J ND(0.0010) JChloromethane ND(0.0010) ND(0.0010) J ND(0.0010) Jcis-1,3-Dichloropropene ND(0.0010) ND(0.0010) J ND(0.0010) JDibromochloromethane ND(0.0010) ND(0.0010) J ND(0.0010) JDibromomethane ND(0.0010) ND(0.0010) J ND(0.0010) JDichlorodifluoromethane ND(0.0050) ND(0.0050) J ND(0.0050) JEthyl Methacrylate ND(0.0010) ND(0.0010) J ND(0.0010) JEthylbenzene ND(0.0010) ND(0.0010) J ND(0.0010) JIodomethane ND(0.0010) ND(0.0010) J ND(0.0010) JIsobutanol ND(0.050) ND(0.050) J ND(0.050) JMethacrylonitrile ND(0.010) ND(0.010) J ND(0.010) JMethyl Methacrylate ND(0.0010) ND(0.0010) J ND(0.0010) JMethylene Chloride ND(0.0050) ND(0.0050) J ND(0.0050) JPropionitrile ND(0.020) ND(0.020) J ND(0.020) JStyrene ND(0.0010) ND(0.0010) J ND(0.0010) JTetrachloroethene ND(0.0010) ND(0.0010) J ND(0.0010) JToluene ND(0.0010) ND(0.0010) J ND(0.0010) Jtrans-1,2-Dichloroethene ND(0.0010) ND(0.0010) J ND(0.0010) Jtrans-1,3-Dichloropropene ND(0.0010) ND(0.0010) J ND(0.0010) Jtrans-1,4-Dichloro-2-butene ND(0.0050) ND(0.0050) J ND(0.0050) JTrichloroethene ND(0.0010) 0.0012 J ND(0.0010) JTrichlorofluoromethane ND(0.0010) ND(0.0010) J ND(0.0010) JVinyl Acetate ND(0.0020) ND(0.0020) J ND(0.0020) JVinyl Chloride ND(0.0010) ND(0.0010) J ND(0.0010) JXylenes (total) ND(0.0020) ND(0.0020) J ND(0.0020) JTotal VOCs ND(0.10) 0.0012 J 0.00036 J

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 9 of 17

7/25/2014

Page 136: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: OPCA-MW-3 OPCA-MW-4 OPCA-MW-5RParameter Date Collected: 04/08/14 4/8-5/9/14 4/8-5/9/14

PCBs-FilteredAroclor-1016 ND(0.000066) ND(0.000065) ND(0.000074)Aroclor-1221 ND(0.000066) ND(0.000065) ND(0.000074)Aroclor-1232 ND(0.000066) ND(0.000065) ND(0.000074)Aroclor-1242 ND(0.000066) ND(0.000065) ND(0.000074)Aroclor-1248 ND(0.000066) 0.00031 ND(0.000074)Aroclor-1254 ND(0.000066) ND(0.000065) ND(0.000074)Aroclor-1260 ND(0.000066) ND(0.000065) ND(0.000074)Total PCBs ND(0.000066) 0.00031 ND(0.000074)Semivolatile Organics1,2,4,5-Tetrachlorobenzene ND(0.0050) ND(0.0050) ND(0.0053)1,2,4-Trichlorobenzene ND(0.0050) ND(0.0050) ND(0.0053)1,2-Dichlorobenzene ND(0.0050) ND(0.0050) ND(0.0053)1,3,5-Trinitrobenzene ND(0.025) ND(0.025) ND(0.026)1,3-Dichlorobenzene ND(0.0050) ND(0.0050) ND(0.0053)1,3-Dinitrobenzene ND(0.0050) ND(0.0050) ND(0.0053)1,4-Dichlorobenzene ND(0.0050) ND(0.0050) ND(0.0053)1,4-Naphthoquinone ND(0.0050) ND(0.0050) ND(0.0053)1-Naphthylamine ND(0.025) ND(0.025) ND(0.026)2,3,4,6-Tetrachlorophenol ND(0.0050) ND(0.0050) ND(0.0053)2,4,5-Trichlorophenol ND(0.0050) ND(0.0050) ND(0.0053)2,4,6-Trichlorophenol ND(0.0050) ND(0.0050) ND(0.0053)2,4-Dichlorophenol ND(0.0050) ND(0.0050) ND(0.0053)2,4-Dimethylphenol ND(0.0050) ND(0.0050) ND(0.0053)2,4-Dinitrophenol ND(0.025) ND(0.025) ND(0.026)2,4-Dinitrotoluene ND(0.0050) ND(0.0050) ND(0.0053)2,6-Dichlorophenol ND(0.0050) ND(0.0050) ND(0.0053)2,6-Dinitrotoluene ND(0.0050) ND(0.0050) ND(0.0053)2-Acetylaminofluorene ND(0.010) ND(0.010) ND(0.011)2-Chloronaphthalene ND(0.0050) ND(0.0050) ND(0.0053)2-Chlorophenol ND(0.0050) ND(0.0050) ND(0.0053)2-Methylnaphthalene ND(0.0050) ND(0.0050) ND(0.0053)2-Methylphenol ND(0.0050) ND(0.0050) ND(0.0053)2-Naphthylamine ND(0.025) ND(0.025) ND(0.026)2-Nitroaniline ND(0.0050) ND(0.0050) ND(0.0053)2-Nitrophenol ND(0.0050) ND(0.0050) ND(0.0053)2-Picoline ND(0.0050) ND(0.0050) ND(0.0053)3&4-Methylphenol ND(0.0050) ND(0.0050) ND(0.0053)3,3'-Dichlorobenzidine ND(0.010) ND(0.010) ND(0.011)3,3'-Dimethylbenzidine ND(0.025) ND(0.025) ND(0.026)3-Methylcholanthrene ND(0.010) ND(0.010) ND(0.011)3-Nitroaniline ND(0.025) ND(0.025) ND(0.026)4,6-Dinitro-2-methylphenol ND(0.025) ND(0.025) ND(0.026)4-Aminobiphenyl ND(0.0050) ND(0.0050) ND(0.0053)4-Bromophenyl-phenylether ND(0.0050) ND(0.0050) ND(0.0053)4-Chloro-3-Methylphenol ND(0.0050) ND(0.0050) ND(0.0053)4-Chloroaniline ND(0.025) ND(0.025) ND(0.026)4-Chlorobenzilate ND(0.0050) ND(0.0050) ND(0.0053)4-Chlorophenyl-phenylether ND(0.0050) ND(0.0050) ND(0.0053)4-Nitroaniline ND(0.025) ND(0.025) ND(0.026)4-Nitrophenol ND(0.025) ND(0.025) ND(0.026)4-Nitroquinoline-1-oxide ND(0.025) ND(0.025) ND(0.026)4-Phenylenediamine ND(0.010) ND(0.010) ND(0.011)5-Nitro-o-toluidine ND(0.0050) ND(0.0050) ND(0.0053)7,12-Dimethylbenz(a)anthracene ND(0.0050) ND(0.0050) ND(0.0053)a,a'-Dimethylphenethylamine ND(0.025) ND(0.025) ND(0.026)Acenaphthene ND(0.0050) ND(0.0050) ND(0.0053)Acenaphthylene ND(0.0050) ND(0.0050) ND(0.0053)Acetophenone ND(0.0050) ND(0.0050) ND(0.0053)Aniline ND(0.0050) ND(0.0050) ND(0.0053)Anthracene ND(0.0050) ND(0.0050) ND(0.0053)Aramite ND(0.0050) ND(0.0050) ND(0.0053)Azobenzene ND(0.0050) ND(0.0050) ND(0.0053)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 10 of 17

7/25/2014

Page 137: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: OPCA-MW-3 OPCA-MW-4 OPCA-MW-5RParameter Date Collected: 04/08/14 4/8-5/9/14 4/8-5/9/14

Semivolatile Organics (continued)Benzidine ND(0.025) ND(0.025) ND(0.026)Benzo(a)anthracene ND(0.0050) ND(0.0050) ND(0.0053)Benzo(a)pyrene ND(0.0050) ND(0.0050) ND(0.0053)Benzo(b)fluoranthene ND(0.0050) ND(0.0050) ND(0.0053)Benzo(g,h,i)perylene ND(0.0050) ND(0.0050) ND(0.0053)Benzo(k)fluoranthene ND(0.0050) ND(0.0050) ND(0.0053)Benzyl Alcohol ND(0.010) ND(0.010) ND(0.011)bis(2-Chloroethoxy)methane ND(0.0050) ND(0.0050) ND(0.0053)bis(2-Chloroethyl)ether ND(0.0050) ND(0.0050) ND(0.0053)bis(2-Chloroisopropyl)ether ND(0.0050) ND(0.0050) ND(0.0053)bis(2-Ethylhexyl)phthalate ND(0.0050) ND(0.0050) ND(0.0053)Butylbenzylphthalate ND(0.0050) ND(0.0050) ND(0.0053)Chrysene ND(0.0050) ND(0.0050) ND(0.0053)Diallate ND(0.0050) ND(0.0050) ND(0.0053)Dibenzo(a,h)anthracene ND(0.0050) ND(0.0050) ND(0.0053)Dibenzofuran ND(0.0050) ND(0.0050) ND(0.0053)Diethylphthalate ND(0.0050) ND(0.0050) ND(0.0053)Dimethylphthalate ND(0.0050) ND(0.0050) ND(0.0053)Di-n-Butylphthalate ND(0.0050) ND(0.0050) ND(0.0053)Di-n-Octylphthalate ND(0.0050) ND(0.0050) ND(0.0053)Diphenylamine ND(0.0050) ND(0.0050) ND(0.0053)Ethyl Methanesulfonate ND(0.0050) ND(0.0050) ND(0.0053)Fluoranthene ND(0.0050) ND(0.0050) ND(0.0053)Fluorene ND(0.0050) ND(0.0050) ND(0.0053)Hexachlorobenzene ND(0.0050) ND(0.0050) ND(0.0053)Hexachlorobutadiene ND(0.0050) ND(0.0050) ND(0.0053)Hexachlorocyclopentadiene ND(0.010) J ND(0.010) J ND(0.011) JHexachloroethane ND(0.0050) ND(0.0050) ND(0.0053)Hexachlorophene ND(0.025) J ND(0.025) J ND(0.026) JHexachloropropene ND(0.010) ND(0.010) ND(0.011)Indeno(1,2,3-cd)pyrene ND(0.0050) ND(0.0050) ND(0.0053)Isodrin ND(0.0050) ND(0.0050) ND(0.0053)Isophorone ND(0.0050) ND(0.0050) ND(0.0053)Isosafrole ND(0.0050) ND(0.0050) ND(0.0053)Methapyrilene ND(0.025) ND(0.025) ND(0.026)Methyl Methanesulfonate ND(0.0050) ND(0.0050) ND(0.0053)Naphthalene ND(0.0050) ND(0.0050) ND(0.0053)Nitrobenzene ND(0.0050) ND(0.0050) ND(0.0053)N-Nitrosodiethylamine ND(0.0050) ND(0.0050) ND(0.0053)N-Nitrosodimethylamine ND(0.0050) ND(0.0050) ND(0.0053)N-Nitroso-di-n-butylamine ND(0.0050) ND(0.0050) ND(0.0053)N-Nitroso-di-n-propylamine ND(0.0050) ND(0.0050) ND(0.0053)N-Nitrosomethylethylamine ND(0.0050) ND(0.0050) ND(0.0053)N-Nitrosomorpholine ND(0.0050) ND(0.0050) ND(0.0053)N-Nitrosopiperidine ND(0.0050) ND(0.0050) ND(0.0053)N-Nitrosopyrrolidine ND(0.0050) ND(0.0050) ND(0.0053)o,o,o-Triethylphosphorothioate ND(0.0050) ND(0.0050) ND(0.0053)o-Toluidine ND(0.0050) ND(0.0050) ND(0.0053)p-Dimethylaminoazobenzene ND(0.0050) ND(0.0050) ND(0.0053)Pentachlorobenzene ND(0.0050) ND(0.0050) ND(0.0053)Pentachloroethane ND(0.0050) ND(0.0050) ND(0.0053)Pentachloronitrobenzene ND(0.0050) ND(0.0050) ND(0.0053)Pentachlorophenol ND(0.025) ND(0.025) ND(0.026)Phenacetin ND(0.0050) ND(0.0050) ND(0.0053)Phenanthrene ND(0.0050) ND(0.0050) ND(0.0053)Phenol ND(0.0050) ND(0.0050) ND(0.0053)Pronamide ND(0.0050) ND(0.0050) ND(0.0053)Pyrene ND(0.0050) ND(0.0050) ND(0.0053)Pyridine ND(0.0050) ND(0.0050) ND(0.0053)Safrole ND(0.0050) ND(0.0050) ND(0.0053)Thionazin ND(0.010) ND(0.010) ND(0.011)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 11 of 17

7/25/2014

Page 138: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: OPCA-MW-3 OPCA-MW-4 OPCA-MW-5RParameter Date Collected: 04/08/14 4/8-5/9/14 4/8-5/9/14

Furans2,3,7,8-TCDF ND(0.00000000095) 0.0000000023 J ND(0.00000000073)TCDFs (total) ND(0.00000000095) 0.000000024 J 0.0000000035 J1,2,3,7,8-PeCDF ND(0.00000000077) ND(0.00000000073) ND(0.00000000067)2,3,4,7,8-PeCDF ND(0.00000000080) ND(0.00000000075) 0.00000000092 JPeCDFs (total) ND(0.00000000078) 0.000000071 J 0.000000015 J1,2,3,4,7,8-HxCDF ND(0.00000000086) 0.0000000011 J 0.0000000023 J1,2,3,6,7,8-HxCDF ND(0.00000000081) ND(0.00000000070) 0.0000000016 J1,2,3,7,8,9-HxCDF ND(0.0000000012) ND(0.0000000010) ND(0.00000000098)2,3,4,6,7,8-HxCDF ND(0.00000000086) ND(0.00000000077) 0.0000000019 JHxCDFs (total) ND(0.00000000091) 0.000000014 0.000000018 J1,2,3,4,6,7,8-HpCDF ND(0.00000000086) ND(0.00000000074) 0.0000000044 J1,2,3,4,7,8,9-HpCDF ND(0.0000000015) ND(0.0000000010) 0.0000000013 JHpCDFs (total) ND(0.0000000011) ND(0.00000000074) 0.0000000089 JOCDF ND(0.0000000022) ND(0.0000000024) 0.0000000041 JDioxins2,3,7,8-TCDD ND(0.0000000019) ND(0.00000000086) ND(0.0000000011)TCDDs (total) ND(0.0000000019) ND(0.00000000086) 0.00000000161,2,3,7,8-PeCDD ND(0.0000000014) ND(0.0000000011) ND(0.0000000012)PeCDDs (total) ND(0.0000000014) ND(0.0000000011) ND(0.0000000012)1,2,3,4,7,8-HxCDD ND(0.0000000010) ND(0.00000000095) ND(0.00000000080)1,2,3,6,7,8-HxCDD ND(0.00000000098) ND(0.00000000098) ND(0.00000000088)1,2,3,7,8,9-HxCDD ND(0.0000000011) ND(0.0000000011) 0.0000000011 JHxCDDs (total) ND(0.0000000010) ND(0.00000000099) 0.0000000049 J1,2,3,4,6,7,8-HpCDD ND(0.0000000012) ND(0.0000000012) ND(0.0000000044)HpCDDs (total) ND(0.0000000012) ND(0.0000000012) 0.0000000053 JOCDD ND(0.0000000040) ND(0.0000000063) 0.000000024 JTotal TEQs (1998 WHO TEFs) 0.0000000022 0.0000000018 0.0000000026Inorganics-UnfilteredSulfide ND(2.00) ND(2.00) ND(2.00)Inorganics-FilteredAntimony ND(0.0400) ND(0.0400) ND(0.0400)Arsenic ND(0.0100) J ND(0.0100) J ND(0.0100) JBarium ND(0.100) ND(0.100) ND(0.100)Beryllium ND(0.0100) J ND(0.0100) J ND(0.0100) JCadmium 0.000260 B 0.0000700 B 0.00176Chromium ND(0.0100) J ND(0.0100) J ND(0.0100) JCobalt ND(0.0100) J ND(0.0100) J ND(0.0100) JCopper ND(0.0100) J ND(0.0100) J ND(0.0100) JCyanide-MADEP (PAC) ND(0.0100) ND(0.0100) ND(0.0100)Lead ND(0.0100) J ND(0.0100) J ND(0.0100) JMercury ND(0.000150) ND(0.000150) ND(0.000150)Nickel 0.00357 J ND(0.0100) J ND(0.0100) JSelenium ND(0.0200) J ND(0.0200) J ND(0.0200) JSilver ND(0.000500) ND(0.000500) ND(0.000500)Thallium ND(0.0100) J 0.00805 J ND(0.0100) JTin ND(0.100) ND(0.100) ND(0.100)Vanadium ND(0.0500) ND(0.0500) ND(0.0500)Zinc 0.00959 B 0.0177 B 0.263

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 12 of 17

7/25/2014

Page 139: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: OPCA-MW-6 OPCA-MW-7 OPCA-MW-8RParameter Date Collected: 04/10/14 4/8-5/9/14 4/9-5/9/14Volatile Organics1,1,1,2-Tetrachloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1,1-Trichloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1,2,2-Tetrachloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1,2-Trichloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1-Dichloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,1-Dichloroethene ND(0.0010) ND(0.0010) J ND(0.0010) J1,2,3-Trichloropropane ND(0.0010) ND(0.0010) J ND(0.0010) J1,2-Dibromo-3-chloropropane ND(0.0050) ND(0.0050) J ND(0.0050) J1,2-Dibromoethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,2-Dichloroethane ND(0.0010) ND(0.0010) J ND(0.0010) J1,2-Dichloropropane ND(0.0010) ND(0.0010) J ND(0.0010) J1,4-Dioxane ND(0.10) J ND(0.10) J ND(0.10) J2-Butanone ND(0.025) ND(0.025) J ND(0.025) J2-Chloro-1,3-butadiene ND(0.0010) ND(0.0010) J ND(0.0010) J2-Chloroethylvinylether ND(0.025) ND(0.025) J ND(0.025) J2-Hexanone ND(0.0050) ND(0.0050) J ND(0.0050) J3-Chloropropene ND(0.0010) ND(0.0010) J ND(0.0010) J4-Methyl-2-pentanone ND(0.0050) ND(0.0050) J ND(0.0050) JAcetone ND(0.025) ND(0.047) J ND(0.039) JAcetonitrile ND(0.020) ND(0.020) J ND(0.020) JAcrolein ND(0.025) ND(0.025) J ND(0.025) JAcrylonitrile ND(0.025) ND(0.025) J ND(0.025) JBenzene ND(0.0010) ND(0.0010) J ND(0.0010) JBromodichloromethane ND(0.0010) ND(0.0010) J ND(0.0010) JBromoform ND(0.0010) ND(0.0010) J ND(0.0010) JBromomethane ND(0.0010) ND(0.0010) J ND(0.0010) JCarbon Disulfide ND(0.0010) ND(0.0010) J ND(0.0010) JCarbon Tetrachloride ND(0.0010) ND(0.0010) J ND(0.0010) JChlorobenzene ND(0.0010) ND(0.0010) J ND(0.0010) JChloroethane ND(0.0010) ND(0.0010) J ND(0.0010) JChloroform ND(0.0010) ND(0.0010) J ND(0.0010) JChloromethane ND(0.0010) ND(0.0010) J ND(0.0010) Jcis-1,3-Dichloropropene ND(0.0010) ND(0.0010) J ND(0.0010) JDibromochloromethane ND(0.0010) ND(0.0010) J ND(0.0010) JDibromomethane ND(0.0010) ND(0.0010) J ND(0.0010) JDichlorodifluoromethane ND(0.0050) ND(0.0050) J ND(0.0050) JEthyl Methacrylate ND(0.0010) ND(0.0010) J ND(0.0010) JEthylbenzene ND(0.0010) ND(0.0010) J ND(0.0010) JIodomethane ND(0.0010) ND(0.0010) J ND(0.0010) JIsobutanol ND(0.050) ND(0.050) J ND(0.050) JMethacrylonitrile ND(0.010) ND(0.010) J ND(0.010) JMethyl Methacrylate ND(0.0010) ND(0.0010) J ND(0.0010) JMethylene Chloride ND(0.0050) ND(0.0050) J ND(0.0050) JPropionitrile ND(0.020) ND(0.020) J ND(0.020) JStyrene ND(0.0010) ND(0.0010) J ND(0.0010) JTetrachloroethene ND(0.0010) ND(0.0010) J ND(0.0010) JToluene ND(0.0010) ND(0.0010) J ND(0.0010) Jtrans-1,2-Dichloroethene ND(0.0010) ND(0.0010) J ND(0.0010) Jtrans-1,3-Dichloropropene ND(0.0010) ND(0.0010) J ND(0.0010) Jtrans-1,4-Dichloro-2-butene ND(0.0050) ND(0.0050) J ND(0.0050) JTrichloroethene ND(0.0010) ND(0.0010) J ND(0.0010) JTrichlorofluoromethane ND(0.0010) ND(0.0010) J ND(0.0010) JVinyl Acetate ND(0.0020) ND(0.0020) J ND(0.0020) JVinyl Chloride ND(0.0010) ND(0.0010) J ND(0.0010) JXylenes (total) ND(0.0020) ND(0.0020) J ND(0.0020) JTotal VOCs ND(0.10) ND(0.10) ND(0.10)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 13 of 17

7/25/2014

Page 140: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: OPCA-MW-6 OPCA-MW-7 OPCA-MW-8RParameter Date Collected: 04/10/14 4/8-5/9/14 4/9-5/9/14

PCBs-FilteredAroclor-1016 ND(0.000066) ND(0.000075) ND(0.000066)Aroclor-1221 ND(0.000066) ND(0.000075) ND(0.000066)Aroclor-1232 ND(0.000066) ND(0.000075) ND(0.000066)Aroclor-1242 ND(0.000066) ND(0.000075) ND(0.000066)Aroclor-1248 ND(0.000066) ND(0.000075) ND(0.000066)Aroclor-1254 ND(0.000066) ND(0.000075) ND(0.000066)Aroclor-1260 ND(0.000066) ND(0.000075) ND(0.000066)Total PCBs ND(0.000066) ND(0.000075) ND(0.000066)Semivolatile Organics1,2,4,5-Tetrachlorobenzene ND(0.0051) ND(0.0058) ND(0.0050)1,2,4-Trichlorobenzene ND(0.0051) ND(0.0058) ND(0.0050)1,2-Dichlorobenzene ND(0.0051) ND(0.0058) ND(0.0050)1,3,5-Trinitrobenzene ND(0.025) ND(0.029) ND(0.025)1,3-Dichlorobenzene ND(0.0051) ND(0.0058) ND(0.0050)1,3-Dinitrobenzene ND(0.0051) ND(0.0058) ND(0.0050)1,4-Dichlorobenzene ND(0.0051) ND(0.0058) ND(0.0050)1,4-Naphthoquinone ND(0.0051) ND(0.0058) ND(0.0050)1-Naphthylamine ND(0.025) ND(0.029) ND(0.025)2,3,4,6-Tetrachlorophenol ND(0.0051) ND(0.0058) ND(0.0050)2,4,5-Trichlorophenol ND(0.0051) ND(0.0058) ND(0.0050)2,4,6-Trichlorophenol ND(0.0051) ND(0.0058) ND(0.0050)2,4-Dichlorophenol ND(0.0051) ND(0.0058) ND(0.0050)2,4-Dimethylphenol ND(0.0051) J ND(0.0058) ND(0.0050)2,4-Dinitrophenol ND(0.025) ND(0.029) ND(0.025)2,4-Dinitrotoluene ND(0.0051) ND(0.0058) ND(0.0050)2,6-Dichlorophenol ND(0.0051) ND(0.0058) ND(0.0050)2,6-Dinitrotoluene ND(0.0051) ND(0.0058) ND(0.0050)2-Acetylaminofluorene ND(0.010) ND(0.012) ND(0.010)2-Chloronaphthalene ND(0.0051) ND(0.0058) ND(0.0050)2-Chlorophenol ND(0.0051) ND(0.0058) ND(0.0050)2-Methylnaphthalene ND(0.0051) ND(0.0058) ND(0.0050)2-Methylphenol ND(0.0051) ND(0.0058) ND(0.0050)2-Naphthylamine ND(0.025) ND(0.029) ND(0.025)2-Nitroaniline ND(0.0051) ND(0.0058) ND(0.0050)2-Nitrophenol ND(0.0051) ND(0.0058) ND(0.0050)2-Picoline ND(0.0051) ND(0.0058) ND(0.0050)3&4-Methylphenol ND(0.0051) ND(0.0058) ND(0.0050)3,3'-Dichlorobenzidine ND(0.010) J ND(0.012) ND(0.010)3,3'-Dimethylbenzidine ND(0.025) ND(0.029) ND(0.025)3-Methylcholanthrene ND(0.010) ND(0.012) ND(0.010)3-Nitroaniline ND(0.025) ND(0.029) ND(0.025)4,6-Dinitro-2-methylphenol ND(0.025) ND(0.029) ND(0.025)4-Aminobiphenyl ND(0.0051) ND(0.0058) ND(0.0050)4-Bromophenyl-phenylether ND(0.0051) ND(0.0058) ND(0.0050)4-Chloro-3-Methylphenol ND(0.0051) ND(0.0058) ND(0.0050)4-Chloroaniline ND(0.025) ND(0.029) ND(0.025)4-Chlorobenzilate ND(0.0051) ND(0.0058) ND(0.0050)4-Chlorophenyl-phenylether ND(0.0051) ND(0.0058) ND(0.0050)4-Nitroaniline ND(0.025) ND(0.029) ND(0.025)4-Nitrophenol ND(0.025) ND(0.029) ND(0.025)4-Nitroquinoline-1-oxide ND(0.025) ND(0.029) ND(0.025)4-Phenylenediamine ND(0.010) ND(0.012) ND(0.010)5-Nitro-o-toluidine ND(0.0051) ND(0.0058) ND(0.0050)7,12-Dimethylbenz(a)anthracene ND(0.0051) ND(0.0058) ND(0.0050)a,a'-Dimethylphenethylamine ND(0.025) ND(0.029) ND(0.025)Acenaphthene ND(0.0051) ND(0.0058) ND(0.0050)Acenaphthylene ND(0.0051) ND(0.0058) ND(0.0050)Acetophenone ND(0.0051) ND(0.0058) ND(0.0050)Aniline ND(0.0051) ND(0.0058) ND(0.0050)Anthracene ND(0.0051) ND(0.0058) ND(0.0050)Aramite ND(0.0051) ND(0.0058) ND(0.0050)Azobenzene ND(0.0051) ND(0.0058) ND(0.0050)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 14 of 17

7/25/2014

Page 141: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: OPCA-MW-6 OPCA-MW-7 OPCA-MW-8RParameter Date Collected: 04/10/14 4/8-5/9/14 4/9-5/9/14

Semivolatile Organics (continued)Benzidine ND(0.025) ND(0.029) ND(0.025)Benzo(a)anthracene ND(0.0051) ND(0.0058) ND(0.0050)Benzo(a)pyrene ND(0.0051) ND(0.0058) ND(0.0050)Benzo(b)fluoranthene ND(0.0051) ND(0.0058) ND(0.0050)Benzo(g,h,i)perylene ND(0.0051) ND(0.0058) ND(0.0050)Benzo(k)fluoranthene ND(0.0051) ND(0.0058) ND(0.0050)Benzyl Alcohol ND(0.010) ND(0.012) ND(0.010)bis(2-Chloroethoxy)methane ND(0.0051) ND(0.0058) ND(0.0050)bis(2-Chloroethyl)ether ND(0.0051) ND(0.0058) ND(0.0050)bis(2-Chloroisopropyl)ether ND(0.0051) ND(0.0058) ND(0.0050)bis(2-Ethylhexyl)phthalate ND(0.0051) ND(0.0058) ND(0.0050)Butylbenzylphthalate ND(0.0051) ND(0.0058) ND(0.0050)Chrysene ND(0.0051) ND(0.0058) ND(0.0050)Diallate ND(0.0051) ND(0.0058) ND(0.0050)Dibenzo(a,h)anthracene ND(0.0051) ND(0.0058) ND(0.0050)Dibenzofuran ND(0.0051) ND(0.0058) ND(0.0050)Diethylphthalate ND(0.0051) ND(0.0058) ND(0.0050)Dimethylphthalate ND(0.0051) ND(0.0058) ND(0.0050)Di-n-Butylphthalate ND(0.0051) ND(0.0058) ND(0.0050)Di-n-Octylphthalate ND(0.0051) ND(0.0058) ND(0.0050)Diphenylamine ND(0.0051) ND(0.0058) ND(0.0050)Ethyl Methanesulfonate ND(0.0051) ND(0.0058) ND(0.0050)Fluoranthene ND(0.0051) ND(0.0058) ND(0.0050)Fluorene ND(0.0051) ND(0.0058) ND(0.0050)Hexachlorobenzene ND(0.0051) ND(0.0058) ND(0.0050)Hexachlorobutadiene ND(0.0051) ND(0.0058) ND(0.0050)Hexachlorocyclopentadiene ND(0.010) J ND(0.012) J ND(0.010) JHexachloroethane ND(0.0051) ND(0.0058) ND(0.0050)Hexachlorophene ND(0.025) J ND(0.029) J ND(0.025) JHexachloropropene ND(0.010) ND(0.012) ND(0.010)Indeno(1,2,3-cd)pyrene ND(0.0051) ND(0.0058) ND(0.0050)Isodrin ND(0.0051) ND(0.0058) ND(0.0050)Isophorone ND(0.0051) ND(0.0058) ND(0.0050)Isosafrole ND(0.0051) ND(0.0058) ND(0.0050)Methapyrilene ND(0.025) ND(0.029) ND(0.025)Methyl Methanesulfonate ND(0.0051) ND(0.0058) ND(0.0050)Naphthalene ND(0.0051) ND(0.0058) ND(0.0050)Nitrobenzene ND(0.0051) ND(0.0058) ND(0.0050)N-Nitrosodiethylamine ND(0.0051) ND(0.0058) ND(0.0050)N-Nitrosodimethylamine ND(0.0051) ND(0.0058) ND(0.0050)N-Nitroso-di-n-butylamine ND(0.0051) ND(0.0058) ND(0.0050)N-Nitroso-di-n-propylamine ND(0.0051) ND(0.0058) ND(0.0050)N-Nitrosomethylethylamine ND(0.0051) ND(0.0058) ND(0.0050)N-Nitrosomorpholine ND(0.0051) ND(0.0058) ND(0.0050)N-Nitrosopiperidine ND(0.0051) ND(0.0058) ND(0.0050)N-Nitrosopyrrolidine ND(0.0051) ND(0.0058) ND(0.0050)o,o,o-Triethylphosphorothioate ND(0.0051) ND(0.0058) ND(0.0050)o-Toluidine ND(0.0051) ND(0.0058) ND(0.0050)p-Dimethylaminoazobenzene ND(0.0051) ND(0.0058) ND(0.0050)Pentachlorobenzene ND(0.0051) ND(0.0058) ND(0.0050)Pentachloroethane ND(0.0051) ND(0.0058) ND(0.0050)Pentachloronitrobenzene ND(0.0051) ND(0.0058) ND(0.0050)Pentachlorophenol ND(0.025) ND(0.029) ND(0.025)Phenacetin ND(0.0051) ND(0.0058) ND(0.0050)Phenanthrene ND(0.0051) ND(0.0058) ND(0.0050)Phenol ND(0.0051) ND(0.0058) ND(0.0050)Pronamide ND(0.0051) ND(0.0058) ND(0.0050)Pyrene ND(0.0051) ND(0.0058) ND(0.0050)Pyridine ND(0.0051) ND(0.0058) ND(0.0050)Safrole ND(0.0051) ND(0.0058) ND(0.0050)Thionazin ND(0.010) ND(0.012) ND(0.010)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 15 of 17

7/25/2014

Page 142: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Sample ID: OPCA-MW-6 OPCA-MW-7 OPCA-MW-8RParameter Date Collected: 04/10/14 4/8-5/9/14 4/9-5/9/14

Furans2,3,7,8-TCDF 0.0000000013 J ND(0.00000000065) ND(0.00000000045)TCDFs (total) 0.0000000013 ND(0.00000000065) ND(0.00000000045)1,2,3,7,8-PeCDF ND(0.00000000056) ND(0.00000000059) ND(0.00000000044)2,3,4,7,8-PeCDF ND(0.00000000054) ND(0.00000000061) ND(0.00000000042)PeCDFs (total) ND(0.00000000055) 0.00000000092 ND(0.00000000043)1,2,3,4,7,8-HxCDF ND(0.00000000045) 0.00000000054 J ND(0.00000000046)1,2,3,6,7,8-HxCDF ND(0.00000000042) ND(0.00000000047) ND(0.00000000044)1,2,3,7,8,9-HxCDF ND(0.00000000070) ND(0.00000000070) ND(0.00000000064)2,3,4,6,7,8-HxCDF ND(0.00000000051) ND(0.00000000050) ND(0.00000000047)HxCDFs (total) 0.00000000067 ND(0.00000000053) ND(0.00000000049)1,2,3,4,6,7,8-HpCDF ND(0.00000000090) ND(0.0000000014) ND(0.00000000046)1,2,3,4,7,8,9-HpCDF ND(0.0000000011) ND(0.00000000089) ND(0.00000000085)HpCDFs (total) ND(0.00000000090) ND(0.0000000014) ND(0.00000000046)OCDF ND(0.0000000019) 0.0000000020 J ND(0.0000000014)Dioxins2,3,7,8-TCDD ND(0.00000000060) ND(0.00000000096) ND(0.00000000075)TCDDs (total) ND(0.00000000060) 0.0000000017 ND(0.00000000075)1,2,3,7,8-PeCDD ND(0.00000000065) ND(0.00000000087) ND(0.00000000067)PeCDDs (total) ND(0.00000000065) ND(0.00000000087) 0.000000000751,2,3,4,7,8-HxCDD ND(0.00000000075) ND(0.00000000071) ND(0.00000000050)1,2,3,6,7,8-HxCDD ND(0.00000000073) ND(0.00000000073) ND(0.00000000051)1,2,3,7,8,9-HxCDD ND(0.00000000079) ND(0.00000000077) 0.0000000013 JHxCDDs (total) ND(0.00000000076) ND(0.00000000073) 0.0000000027 J1,2,3,4,6,7,8-HpCDD ND(0.0000000010) ND(0.0000000013) ND(0.0000000017)HpCDDs (total) ND(0.0000000010) 0.0000000016 J ND(0.0000000017)OCDD ND(0.0000000067) ND(0.0000000085) ND(0.000000011)Total TEQs (1998 WHO TEFs) 0.0000000011 0.0000000014 0.0000000011Inorganics-UnfilteredSulfide ND(2.00) ND(2.00) ND(2.00)Inorganics-FilteredAntimony ND(0.0400) ND(0.0400) ND(0.0400)Arsenic ND(0.0100) J ND(0.0100) J ND(0.0100) JBarium ND(0.100) 0.0540 B 0.0679 BBeryllium ND(0.0100) J 0.00872 J ND(0.0100) JCadmium ND(0.000500) J 0.00208 ND(0.000500)Chromium ND(0.0100) ND(0.0100) J ND(0.0100) JCobalt ND(0.0100) J ND(0.0100) J ND(0.0100) JCopper ND(0.0100) J ND(0.0100) J ND(0.0100) JCyanide-MADEP (PAC) ND(0.0100) ND(0.0100) ND(0.0100)Lead ND(0.0100) J ND(0.0100) J ND(0.0100) JMercury ND(0.000150) ND(0.000150) ND(0.000150)Nickel ND(0.0100) ND(0.0100) J 0.00346 JSelenium ND(0.0200) J 0.00856 J ND(0.0200) JSilver ND(0.000500) J ND(0.000500) ND(0.000500)Thallium ND(0.0100) J ND(0.0100) J 0.00992 JTin ND(0.100) ND(0.100) ND(0.100)Vanadium ND(0.0500) ND(0.0500) ND(0.0500)Zinc ND(0.0200) 0.0181 B ND(0.0200)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1

Page 16 of 17

7/25/2014

Page 143: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table C-1Spring 2014 Groundwater Analytical Results

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Area for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Notes:

1. Samples were collected by ARCADIS and submitted to SGS Environmental Services, Inc. for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per Field Sampling Plan/Quality Assurance Project Plan (FSP/QAPP), General Electric Company, Pittsfield, Massachusetts, ARCADIS (revised on July 2 , 2013 and approved by EPA on July 23, 2013).

3. ND - Analyte was not detected. The number in parentheses is the associated reporting limit.4. Total 2,3,7,8-TCDD toxicity equivalents (TEQs) were calculated using Toxicity Equivalency Factors (TEFs) derived by

the World Health Organization (WHO) and published by Van den Berg et al. in Environmental Health Perspectives 106(2), December 1998.

5. Field duplicate sample results are presented in brackets.

Data Qualifiers:

Organics (volatiles, PCBs, semivolatiles, dioxin/furans)J - Indicates that the associated numerical value is an estimated concentration.R - Data was rejected due to a deficiency in the data generation process.

InorganicsB - Indicates an estimated value between the method detection limit (MDL) and reporting limit (RL).J - Indicates that the associated numerical value is an estimated concentration.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324Tbls 6789& Appx_C Spring2014 validated 06-19-2014.xlsx - Table C-1 Notes

Page 17 of 17

7/25/2014

Page 144: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Appendix D

Pittsfield Generating Company Groundwater Analytical Data – Spring 2014

Page 145: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table D-1Summary Of Pittsfield Generating Company Groundwater Data

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results in ppm)

Analyte MCP GW-3 Method 3 ASW-5 ASW-5/W-5* ASW-5 ASW-5 ASW-5 ASW-5 ASW-5Identification Standard UCL 6/10/96 9/20/96 12/16/96 6/9/97 12/16/97 6/23/98 12/29/98

Volatile Organics1,2 - Dichloroethene (total) None None ND ND ND ND ND ND NDAcetone 50 100 ND ND ND ND ND ND NDMethylene chloride 50 100 ND 0.0050 JB ND ND ND ND NDTrichloroethene 20 100 0.016 0.0150 0.014 0.0150 0.0120 0.013 0.024PCBs - UnfilteredPCB-1254 None None ND ND ND ND ND ND NDPCB-1260 None None ND ND ND ND ND ND NDTotal PCBs Not Applicable 0.005 ND ND ND ND ND ND NDPCBs - FilteredPCB-1254 None None NA ND NA NA NA NA NAPCB-1260 None None NA ND NA NA NA NA NATotal PCBs 0.01 0.1 NA ND NA NA NA NA NA

Analyte MCP GW-3 Method 3 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5Identification Standard UCL 6/21/99 12/13/99 5/31/00 12/26/00 6/20/01 12/11/01 6/12/02

Volatile Organics1,2 - Dichloroethene (total) None None 0.006 ND ND ND ND ND NDAcetone 50 100 ND ND ND ND ND ND NDMethylene chloride 50 100 ND ND ND ND ND ND NDTrichloroethene 20 100 0.032 0.026 0.021 0.015 0.016 0.013 0.021PCBs - UnfilteredPCB-1254 None None ND ND ND ND ND ND NDPCB-1260 None None ND ND ND ND ND ND NDTotal PCBs Not Applicable 0.005 ND ND ND ND ND ND NDPCBs - FilteredPCB-1254 None None NA NA NA NA NA NA NAPCB-1260 None None NA NA NA NA NA NA NATotal PCBs 0.01 0.1 NA NA NA NA NA NA NA

Analyte MCP GW-3 Method 3 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5Identification Standard UCL 12/6/02 6/2/03 12/1/03 6/7/04 12/13/04 6/7/05 12/7/05

Volatile Organics1,2 - Dichloroethene (total) None None ND ND ND ND ND ND NDAcetone 50 100 ND ND 0.017 ND ND ND NDMethylene chloride 50 100 ND ND ND ND ND ND NDTrichloroethene 20 100 0.012 0.022 0.016 0.019 0.017 0.018 0.018PCBs - UnfilteredPCB-1254 None None ND ND ND ND ND ND NDPCB-1260 None None ND ND ND ND ND ND NDTotal PCBs Not Applicable 0.005 ND ND ND ND ND ND NDPCBs - FilteredPCB-1254 None None NA NA NA NA NA NA NAPCB-1260 None None NA NA NA NA NA NA NATotal PCBs 0.01 0.1 NA NA NA NA NA NA NA

Analyte MCP GW-3 Method 3 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5Identification Standard UCL 6/6/06 12/12/06 6/4/07 12/4/07 6/4/08 12/2/08 6/23/09

Volatile Organics1,2 - Dichloroethene (total) None None ND ND ND ND ND ND NDAcetone 50 100 ND ND ND ND ND ND NDMethylene chloride 50 100 ND ND ND ND ND ND NDTrichloroethene 20 100 0.014 0.012 0.0086 0.014 0.0097 ND NDPCBs - UnfilteredPCB-1254 None None ND ND ND ND ND ND NDPCB-1260 None None ND ND ND ND ND ND NDTotal PCBs Not Applicable 0.005 ND ND ND ND ND ND NDPCBs - FilteredPCB-1254 None None NA NA NA NA NA NA NAPCB-1260 None None NA NA NA NA NA NA NATotal PCBs 0.01 0.1 NA NA NA NA NA NA NA

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxD_ASW-5.xlsx\Table D1

Page 1 of 2

7/25/2014

Page 146: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table D-1Summary Of Pittsfield Generating Company Groundwater Data

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results in ppm)

Analyte MCP GW-3 Method 3 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5 ASW-5Identification Standard UCL 12/1/09 6/22/10 12/7/10 6/28/11 12/20/11 6/19/12 12/27/12

Volatile Organics1,2 - Dichloroethene (total) None None ND ND ND ND ND ND NDAcetone 50 100 ND ND ND ND ND ND NDMethylene chloride 50 100 ND ND ND ND ND ND NDTrichloroethene 20 100 ND 0.0069 0.0096 0.0062 0.0054 0.0052 NDPCBs - UnfilteredPCB-1254 None None ND ND ND ND ND ND NDPCB-1260 None None ND ND ND ND ND ND NDTotal PCBs Not Applicable 0.005 ND ND ND ND ND ND NDPCBs - FilteredPCB-1254 None None NA NA NA NA NA NA NAPCB-1260 None None NA NA NA NA NA NA NATotal PCBs 0.01 0.1 NA NA NA NA NA NA NA

Analyte MCP GW-3 Method 3 ASW-5 ASW-5 ASW-5Identification Standard UCL 6/27/13 12/17/13 6/10/14

Volatile Organics1,2 - Dichloroethene (total) None None ND ND NDAcetone 50 100 ND ND NDMethylene chloride 50 100 ND ND NDTrichloroethene 20 100 ND ND NDPCBs - UnfilteredPCB-1254 None None ND ND NDPCB-1260 None None ND ND NDTotal PCBs Not Applicable 0.005 ND ND NDPCBs - FilteredPCB-1254 None None NA NA NAPCB-1260 None None NA NA NATotal PCBs 0.01 0.1 NA NA NANotes:1. Only parameters detected in at least one sample are shown.2. ND - Compound was not detected.3. J - Indicates an estimated value less than the practical quantitation limit (PQL).4. B - Analyte was also detected in the associated blank.5. * - Sample was collected by Blasland, Bouck, & Lee, Inc., now known as ARCADIS. The remaining samples were collected by Pittsfield Generating Company.6. NA - Not Analyzed.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxD_ASW-5.xlsx\Table D1

Page 2 of 2

7/25/2014

Page 147: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxD_ASW-5.xlsx\ASW-5 - VOC

Page 1 of 1 7/25/2014

0.0

16

0.0

14 0

.02

0.0

15

0.0

12

0.0

13

0.0

24

0.0

38

0.0

26

0.0

21

0.0

15

0.0

16

0.0

13

0.0

21

0.0

12

0.0

22

0.0

33

0.0

19

0.0

17

0.0

18

0.0

18

0.0

14

0.0

12

0.0

08

6 0.0

14

0.0

09

7

ND

ND

ND

0.0

06

9

0.0

09

6

0.0

06

2

0.0

05

4

0.0

05

2

ND

ND

ND

ND

0

0.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08

0.09

0.1

Jun

-96

Se

p-9

6

De

c-9

6

Jun

-97

De

c-9

7

Jun

-98

De

c-9

8

Jun

-99

De

c-9

9

Jun

-00

De

c-0

0

Jun

-01

De

c-0

1

Jun

-02

De

c-0

2

Jun

-03

De

c-0

3

Jun

-04

De

c-0

4

Jun

-05

De

c-0

5

Jun

-06

De

c-0

6

Jun

-07

De

c-0

7

Jun

-08

De

c-0

8

Jun

-09

De

c-0

9

Jun

-10

De

c-1

0

Jun

-11

De

c-1

1

Jun

-12

De

c-1

2

Jun

-13

De

c-1

3

Jun

-14

VO

C C

on

cen

trat

ion

s (p

pm

)

Date of Sample

Appendix D

Summary of Pittsfield Generating Company Groundwater DataWell ASW-5 Historical Total VOC Concentrations

Groundwater Monitoring Program for Hill 78 and Building 71 On-Plant Consolidation Areas General Electric Company - Pittsfield, Massachus

Note:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. Samples were collected by the Pittsfield Generating Company with the exception of

September 1996. Those samples were collected by BBL, Inc (now known as ARCADIS).

Page 148: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxD_ASW-5.xlsx\ASW-5 - PCB

Page 1 of 1 7/25/2014

ND

/ N

S

ND

/ N

D

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

ND

/ N

S

-2.26E-17

0.002

0.004

0.006

0.008

0.01

0.012

Jun

-96

Se

p-9

6

De

c-9

6

Jun

-97

De

c-9

7

Jun

-98

De

c-9

8

Jun

-99

De

c-9

9

Jun

-00

De

c-0

0

Jun

-01

De

c-0

1

Jun

-02

De

c-0

2

Jun

-03

De

c-0

3

Jun

-04

De

c-0

4

Jun

-05

De

c-0

5

Jun

-06

De

c-0

6

Jun

-07

De

c-0

7

Jun

-08

De

c-0

8

Jun

-09

De

c-0

9

Jun

e-1

0

De

c-1

0

Jun

-11

De

c-1

1

Jun

-12

De

c-1

2

Jun

-13

De

c-1

3

Jun

-14

PC

B C

once

ntra

tion

(ppm

)

Date of Sample

Appendix D

Summary of Pittsfield Generating Company Groundwater DataWell ASW-5 Historical Total PCB Concentrations

Groundwater Monitoring Program for Hill 78 and Building 71 On-Plant Consolidation AreasGeneral Electric Company - Pittsfield, Massachusetts

PCBs (unfiltered) PCBs (filtered)

Notes:1. ND: PCBs were not detected in the sample.2. NS: Samples were not collected for filtered analyses.3. Samples were collected by the Pittsfield Generating Company with the exception of September 1996.

Those samples were collected by BBL, Inc (now known as ARCADIS).

Page 149: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Appendix E

Historical Groundwater Data

Page 150: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Tables

Page 151: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-1Summary Of Historical Groundwater Analytical Results - Well 78-1

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1254 Not Listed Not Listed Not Listed 6/9 0.000053 0.00023 0.0000610 0.0000996 0.0000766 0.0000776Aroclor-1260 Not Listed Not Listed Not Listed 5/9 0.000046 0.0001 0.0000490 0.0000512 0.0000481 0.0000210Total PCBs 0.005 0.01 0.1 6/9 0.000061 0.00028 0.000110 0.000135 0.000100 0.0000991PCBs-FilteredAroclor-1248 Not Listed Not Listed Not Listed 1/28 0.000056 0.000056 0.0000330 0.0000423 0.0000383 0.0000258Aroclor-1254 Not Listed Not Listed Not Listed 9/28 0.0000076 0.00024 0.0000340 0.0000555 0.0000443 0.0000472Aroclor-1260 Not Listed Not Listed Not Listed 3/28 0.000017 0.000039 0.0000330 0.0000420 0.0000380 0.0000259Total PCBs 0.005 0.01 0.1 9/28 0.0000076 0.00024 0.0000345 0.0000588 0.0000464 0.0000489Volatile OrganicsAcetone 50 50 100 2/29 0.0012 0.0023 0.00500 0.0153 0.00557 0.0460Bromoform 0.7 50 100 1/29 0.00048 0.00048 0.000500 0.00315 0.00121 0.00909Methylene Chloride 10 50 100 1/30 0.005 0.005 0.00250 0.0108 0.00282 0.0452Total VOCs 5 Not Listed Not Listed 8/30 0.00018 0.005 0.0500 0.213 0.0253 0.905Semivolatile Organicsbis(2-Ethylhexyl)phthalate Not Listed 50 100 3/29 0.00076 0.0025 0.00300 0.00322 0.00277 0.00218Phenol 50 2 100 1/30 0.01 0.01 0.00500 0.00423 0.00394 0.00172Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 6/28 3.5E-09 1.40E-08 1.05E-09 2.61E-09 1.29E-09 3.40E-09TCDFs (total) Not Listed Not Listed Not Listed 10/28 3.5E-09 1.20E-07 3.30E-09 1.53E-08 3.49E-09 2.98E-081,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 4/28 8.8E-10 1.10E-08 1.40E-09 3.27E-09 1.38E-09 5.19E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.15E-09 2.69E-09 1.28E-09 4.99E-09PeCDFs (total) Not Listed Not Listed Not Listed 10/28 2.7E-09 4.00E-08 2.95E-09 8.41E-09 3.08E-09 1.06E-081,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 4/28 9.6E-10 1.70E-08 1.75E-09 3.49E-09 1.30E-09 5.64E-091,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 1/28 6.8E-10 6.8E-10 1.00E-09 2.76E-09 1.29E-09 5.01E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.35E-09 2.91E-09 1.47E-09 5.00E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.20E-09 2.79E-09 1.30E-09 5.01E-09HxCDFs (total) Not Listed Not Listed Not Listed 7/28 6.8E-10 1.70E-08 2.30E-09 4.05E-09 1.71E-09 5.68E-091,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 1/28 8.4E-10 8.4E-10 1.15E-09 2.37E-09 1.24E-09 4.60E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.40E-09 2.96E-09 1.54E-09 4.98E-09HpCDFs (total) Not Listed Not Listed Not Listed 1/28 4.7E-10 4.7E-10 1.35E-09 3.06E-09 1.54E-09 5.08E-09OCDF Not Listed Not Listed Not Listed 1/28 2.1E-09 2.1E-09 3.15E-09 5.90E-09 3.21E-09 9.89E-09

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - 78-1 Page 1 of 3 7/25/2014

Page 152: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-1Summary Of Historical Groundwater Analytical Results - Well 78-1

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 1/28 4.2E-10 4.2E-10 8.75E-10 1.38E-09 9.56E-10 1.50E-09TCDDs (total) Not Listed Not Listed Not Listed 3/28 4.2E-10 1.3E-09 1.15E-09 1.65E-09 1.21E-09 1.66E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 0/28 ND ND 1.65E-09 3.00E-09 1.62E-09 4.96E-09PeCDDs (total) Not Listed Not Listed Not Listed 0/28 ND ND 2.30E-09 4.01E-09 2.26E-09 6.12E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 0/28 ND ND 1.85E-09 3.03E-09 1.58E-09 4.94E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 1/28 2.3E-10 2.3E-10 1.55E-09 2.97E-09 1.22E-09 4.97E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 2/28 1.2E-09 1.6E-09 1.65E-09 3.04E-09 1.65E-09 4.94E-09HxCDDs (total) Not Listed Not Listed Not Listed 3/28 2.3E-10 2.1E-09 2.10E-09 3.63E-09 1.59E-09 5.26E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 0/28 ND ND 2.00E-09 3.42E-09 1.99E-09 4.98E-09HpCDDs (total) Not Listed Not Listed Not Listed 2/28 1.1E-09 8.8E-09 2.00E-09 3.91E-09 2.02E-09 5.39E-09OCDD Not Listed Not Listed Not Listed 1/28 1.00E-08 1.00E-08 5.00E-09 8.29E-09 4.11E-09 1.02E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 28/28 9.4E-10 6.30E-08 5.00E-09 8.33E-09 4.92E-09 1.23E-08InorganicsAntimony Not Listed 8 80 1/7 0.007 0.007 0.0300 0.0267 0.0244 0.00869Barium Not Listed 50 100 6/7 0.025 0.088 0.0330 0.0486 0.0418 0.0314Cadmium Not Listed 0.004 0.05 1/7 0.00098 0.00098 0.00250 0.00235 0.00224 0.000634Calcium Not Listed Not Listed Not Listed 1/1 43 43 43.0 43.0 43.0 NAChromium Not Listed 0.3 3 3/7 0.0013 0.014 0.00500 0.00567 0.00459 0.00405Cobalt Not Listed Not Listed Not Listed 2/7 0.0022 0.013 0.0250 0.0207 0.0165 0.00968Copper Not Listed Not Listed Not Listed 4/7 0.0016 0.022 0.0125 0.0108 0.00822 0.00718Cyanide Not Listed 0.03 2 1/7 0.0071 0.0071 0.00500 0.00601 0.00580 0.00192Lead Not Listed 0.01 0.15 1/7 0.012 0.012 0.00250 0.0124 0.00400 0.0235Magnesium Not Listed Not Listed Not Listed 1/1 18 18 18.0 18.0 18.0 NAManganese Not Listed Not Listed Not Listed 1/1 0.47 0.47 0.470 0.470 0.470 NANickel Not Listed 0.2 2 3/7 0.0023 0.02 0.0200 0.0166 0.0124 0.00989Sodium Not Listed Not Listed Not Listed 1/1 27 27 27.0 27.0 27.0 NASulfide Not Listed Not Listed Not Listed 3/27 1.1 5.6 1.10 1.54 1.22 0.947Vanadium Not Listed 4 40 1/7 0.0019 0.0019 0.0250 0.0224 0.0178 0.00924Zinc Not Listed 0.9 50 7/8 0.016 0.076 0.0245 0.0309 0.0261 0.0210

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - 78-1 Page 2 of 3 7/25/2014

Page 153: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-1Summary Of Historical Groundwater Analytical Results - Well 78-1

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAluminum Not Listed Not Listed Not Listed 0/1 ND ND 0.0250 0.0250 0.0250 NAAntimony Not Listed 8 80 0/27 ND ND 0.0200 0.0222 0.0187 0.00773Arsenic Not Listed 0.9 9 0/27 ND ND 0.00500 0.00633 0.00476 0.00879Barium Not Listed 50 100 18/27 0.012 0.0462 0.0303 0.0726 0.0429 0.0878Beryllium Not Listed 0.2 2 4/27 0.00021 0.00865 0.00119 0.00273 0.00156 0.00247Cadmium Not Listed 0.004 0.05 6/27 0.00035 0.0011 0.00250 0.00197 0.00155 0.00121Calcium Not Listed Not Listed Not Listed 1/1 62.6 62.6 62.6 62.6 62.6 NAChromium Not Listed 0.3 3 4/27 0.00071 0.00301 0.00500 0.00465 0.00410 0.00209Cobalt Not Listed Not Listed Not Listed 3/27 0.000082 0.0046 0.00500 0.0124 0.00761 0.0101Copper Not Listed Not Listed Not Listed 6/27 0.00133 0.0042 0.00500 0.0221 0.00885 0.0344Magnesium Not Listed Not Listed Not Listed 1/1 22.1 22.1 22.1 22.1 22.1 NAManganese Not Listed Not Listed Not Listed 1/1 0.0575 0.0575 0.0575 0.0575 0.0575 NAMercury Not Listed 0.02 0.2 3/27 0.0000403 0.000191 0.000100 0.000116 0.000105 0.0000586Nickel Not Listed 0.2 2 4/27 0.0012 0.00377 0.0200 0.0136 0.00984 0.00901Potassium Not Listed Not Listed Not Listed 1/1 1.6 1.6 1.60 1.60 1.60 NASelenium Not Listed 0.1 1 2/27 0.00294 0.00976 0.00500 0.00617 0.00493 0.00378Silver Not Listed 0.007 1 1/27 0.00008 0.00008 0.00250 0.00247 0.00199 0.00117Sodium Not Listed Not Listed Not Listed 1/1 124 124 124 124 124 NATin Not Listed Not Listed Not Listed 2/26 0.005 0.0163 0.0157 0.0299 0.0228 0.0193Zinc Not Listed 0.9 50 17/27 0.00245 0.029 0.0100 0.0122 0.0101 0.00751

Notes:

1. Samples were collected by ARCADIS between 1991 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a

split. For locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - 78-1 Page 3 of 3 7/25/2014

Page 154: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-2Summary Of Historical Groundwater Analytical Results - Well 78-6/78-6R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1254 Not Listed Not Listed Not Listed 4/9 0.000021 0.00013 0.0000330 0.0000474 0.0000348 0.0000400Aroclor-1260 Not Listed Not Listed Not Listed 1/9 0.0002 0.0002 0.0000330 0.0000455 0.0000294 0.0000588Total PCBs 0.005 0.01 0.1 4/9 0.000021 0.0003 0.0000330 0.0000699 0.0000394 0.0000932PCBs-FilteredAroclor-1248 Not Listed Not Listed Not Listed 1/28 0.00004 0.00004 0.0000330 0.0000413 0.0000374 0.0000257Aroclor-1254 Not Listed Not Listed Not Listed 7/28 0.000022 0.00079 0.0000335 0.0000708 0.0000440 0.000143Aroclor-1260 Not Listed Not Listed Not Listed 1/28 0.000016 0.000016 0.0000330 0.0000403 0.0000360 0.0000263Total PCBs 0.005 0.01 0.1 7/28 0.000022 0.00079 0.0000340 0.0000718 0.0000452 0.000143Volatile OrganicsAcetone 50 50 100 5/29 0.00066 0.005 0.00500 0.00588 0.00393 0.00893Dibromomethane Not Listed Not Listed Not Listed 1/28 0.0011 0.0011 0.000800 0.00141 0.00107 0.000980Methylene Chloride 10 50 100 1/29 0.007 0.007 0.00250 0.00252 0.00239 0.000959Toluene 50 40 100 2/28 0.0019 0.002 0.000500 0.00135 0.00102 0.000959Total VOCs 5 Not Listed Not Listed 8/29 0.00066 0.012 0.0500 0.0500 0.0228 0.0392Semivolatile Organicsbis(2-Ethylhexyl)phthalate Not Listed 50 100 1/28 0.00056 0.00056 0.00290 0.00293 0.00273 0.00100Dimethylphthalate 50 50 100 1/28 0.0006 0.0006 0.00390 0.00374 0.00343 0.00137Di-n-Butylphthalate Not Listed Not Listed Not Listed 1/28 0.0011 0.0011 0.00390 0.00376 0.00350 0.00133Naphthalene 1 20 100 1/28 0.0016 0.0016 0.00390 0.00367 0.00332 0.00146Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 3/28 1.2E-09 3.2E-09 1.30E-09 1.46E-09 8.58E-10 1.16E-09TCDFs (total) Not Listed Not Listed Not Listed 7/28 1.2E-09 5E-08 1.65E-09 5.19E-09 1.64E-09 9.11E-091,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 2/28 2.2E-09 2.9E-09 1.75E-09 2.95E-09 1.18E-09 5.29E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.30E-09 2.86E-09 1.09E-09 5.32E-09PeCDFs (total) Not Listed Not Listed Not Listed 5/28 2.9E-09 1.5E-08 2.30E-09 3.87E-09 1.66E-09 5.70E-091,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.35E-09 2.95E-09 1.17E-09 5.34E-091,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.30E-09 2.88E-09 1.07E-09 5.33E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 1/28 3.1E-10 3.1E-10 1.40E-09 3.04E-09 1.21E-09 5.35E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.30E-09 2.94E-09 1.12E-09 5.35E-09HxCDFs (total) Not Listed Not Listed Not Listed 2/28 2E-12 2.1E-09 1.65E-09 3.09E-09 1.40E-09 5.29E-091,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 2/28 1.6E-09 3.7E-09 1.65E-09 3.37E-09 1.30E-09 5.76E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.30E-09 3.38E-09 1.35E-09 5.75E-09HpCDFs (total) Not Listed Not Listed Not Listed 3/28 1.3E-10 3.7E-09 1.85E-09 3.59E-09 1.39E-09 5.79E-09OCDF Not Listed Not Listed Not Listed 0/28 ND ND 3.30E-09 6.23E-09 2.84E-09 1.03E-08

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - 78-6 Page 1 of 3 7/25/2014

Page 155: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-2Summary Of Historical Groundwater Analytical Results - Well 78-6/78-6R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 0/28 ND ND 8.00E-10 1.44E-09 7.86E-10 1.55E-09TCDDs (total) Not Listed Not Listed Not Listed 1/28 1.1E-08 1.1E-08 1.00E-09 2.01E-09 1.02E-09 2.48E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 0/28 ND ND 2.05E-09 3.60E-09 1.36E-09 5.88E-09PeCDDs (total) Not Listed Not Listed Not Listed 1/28 3.2E-09 3.2E-09 2.40E-09 3.79E-09 1.69E-09 5.80E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 0/28 ND ND 2.25E-09 3.35E-09 1.43E-09 5.32E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 0/28 ND ND 2.00E-09 3.33E-09 1.40E-09 5.38E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 1/28 9.5E-10 9.5E-10 2.15E-09 3.37E-09 1.48E-09 5.33E-09HxCDDs (total) Not Listed Not Listed Not Listed 1/28 4.8E-09 4.8E-09 2.55E-09 3.98E-09 1.94E-09 5.50E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 2/28 9.7E-12 2.7E-09 2.25E-09 3.97E-09 1.95E-09 5.69E-09HpCDDs (total) Not Listed Not Listed Not Listed 2/28 8E-10 2.7E-09 2.55E-09 4.30E-09 2.05E-09 5.90E-09OCDD Not Listed Not Listed Not Listed 3/28 3.7E-09 3.8E-08 5.35E-09 8.90E-09 5.00E-09 1.14E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 28/28 2.4E-12 6.8E-08 6.00E-09 9.00E-09 4.09E-09 1.34E-08InorganicsAntimony Not Listed 8 80 3/7 0.0025 0.012 0.0300 0.0198 0.0139 0.0131Arsenic Not Listed 0.9 9 4/7 0.016 0.37 0.0160 0.0654 0.0179 0.135Barium Not Listed 50 100 6/7 0.031 0.16 0.0960 0.0971 0.0886 0.0388Cadmium Not Listed 0.004 0.05 1/7 0.006 0.006 0.00250 0.00307 0.00291 0.00130Calcium Not Listed Not Listed Not Listed 1/1 110 110 110 110 110 NAChromium Not Listed 0.3 3 2/7 0.0025 0.028 0.00500 0.00814 0.00601 0.00884Cobalt Not Listed Not Listed Not Listed 3/7 0.0024 0.01 0.0250 0.0175 0.0127 0.0113Copper Not Listed Not Listed Not Listed 2/7 0.0018 0.091 0.0125 0.0217 0.0115 0.0310Cyanide Not Listed 0.03 2 4/7 0.0026 0.029 0.00500 0.00829 0.00568 0.00947Lead Not Listed 0.01 0.15 1/7 0.02 0.02 0.00150 0.0134 0.00400 0.0238Magnesium Not Listed Not Listed Not Listed 1/1 36 36 36.0 36.0 36.0 NAManganese Not Listed Not Listed Not Listed 1/1 0.52 0.52 0.520 0.520 0.520 NANickel Not Listed 0.2 2 2/7 0.0027 0.011 0.0200 0.0177 0.0146 0.00859Selenium Not Listed 0.1 1 2/7 0.0049 0.0051 0.00250 0.00329 0.00313 0.00119Silver Not Listed 0.007 1 1/7 0.011 0.011 0.00250 0.00429 0.00354 0.00331Sodium Not Listed Not Listed Not Listed 1/1 42 42 42.0 42.0 42.0 NASulfide Not Listed Not Listed Not Listed 2/28 1.4 8.8 1.00 1.52 1.15 1.10Vanadium Not Listed 4 40 1/7 0.015 0.015 0.0250 0.0243 0.0239 0.00450Zinc Not Listed 0.9 50 5/8 0.0053 2 0.0105 0.264 0.0241 0.702

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - 78-6 Page 2 of 3 7/25/2014

Page 156: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-2Summary Of Historical Groundwater Analytical Results - Well 78-6/78-6R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAntimony Not Listed 8 80 2/27 0.0037 0.0082 0.0200 0.0204 0.0165 0.00852Arsenic Not Listed 0.9 9 8/27 0.00517 0.0102 0.00500 0.00684 0.00553 0.00867Barium Not Listed 50 100 23/27 0.032 0.168 0.0667 0.0851 0.0718 0.0582Beryllium Not Listed 0.2 2 6/27 0.00031 0.00865 0.00115 0.00257 0.00144 0.00244Cadmium Not Listed 0.004 0.05 1/27 0.0002 0.0002 0.00250 0.00200 0.00149 0.00123Calcium Not Listed Not Listed Not Listed 1/1 170 170 170 170 170 NAChromium Not Listed 0.3 3 3/27 0.00148 0.0037 0.00500 0.00483 0.00447 0.00187Cobalt Not Listed Not Listed Not Listed 9/27 0.00092 0.00372 0.00500 0.00849 0.00522 0.00910Copper Not Listed Not Listed Not Listed 2/27 0.00193 0.00669 0.0125 0.0199 0.00992 0.0302Cyanide Not Listed 0.03 2 5/7 0.0021 0.011 0.00500 0.00491 0.00419 0.00312Cyanide-MADEP (PAC) Not Listed 0.03 2 3/17 0.0023 0.01 0.00500 0.0337 0.00565 0.120Dissolved Iron Not Listed Not Listed Not Listed 2/2 5.95 10 8.00 8.00 7.75 2.83Lead Not Listed 0.01 0.15 1/27 0.00684 0.00684 0.00500 0.00347 0.00290 0.00183Magnesium Not Listed Not Listed Not Listed 1/1 51.4 51.4 51.4 51.4 51.4 NAManganese Not Listed Not Listed Not Listed 1/1 0.602 0.602 0.602 0.602 0.602 NAMercury Not Listed 0.02 0.2 2/27 0.0000429 0.00037 0.000100 0.000126 0.000112 0.0000738Nickel Not Listed 0.2 2 3/27 0.001 0.0028 0.0200 0.0136 0.00975 0.00901Potassium Not Listed Not Listed Not Listed 1/1 2.61 2.61 2.61 2.61 2.61 NASelenium Not Listed 0.1 1 1/27 0.00957 0.00957 0.00957 0.00643 0.00515 0.00378Silver Not Listed 0.007 1 1/27 0.0011 0.0011 0.00250 0.00247 0.00207 0.00116Sodium Not Listed Not Listed Not Listed 1/1 318 318 318 318 318 NAThallium Not Listed 3 30 4/27 0.0023 0.00832 0.00500 0.00477 0.00440 0.00141Tin Not Listed Not Listed Not Listed 1/26 0.0498 0.0498 0.0150 0.0297 0.0225 0.0194Zinc Not Listed 0.9 50 15/27 0.00256 0.444 0.0100 0.0181 0.00906 0.0423

Notes:

1. Samples were collected by ARCADIS between 1991 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - 78-6 Page 3 of 3 7/25/2014

Page 157: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-3Summary Of Historical Groundwater Analytical Results - Well GMA4-6

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBs-FilteredAroclor-1254 Not Listed Not Listed Not Listed 3/17 0.000034 0.000058 0.0000360 0.0000505 0.0000443 0.0000345Aroclor-1260 Not Listed Not Listed Not Listed 1/17 0.000021 0.000021 0.0000350 0.0000479 0.0000406 0.0000360Total PCBs 0.005 0.01 0.1 3/17 0.000034 0.000059 0.0000360 0.0000517 0.0000454 0.0000344Volatile OrganicsAcetone 50 50 100 1/16 0.0012 0.0013 0.00250 0.00536 0.00395 0.00465Bromodichloromethane 0.006 50 100 1/16 0.00018 0.00018 0.000500 0.000480 0.000469 0.0000800Chloroform 0.05 20 100 7/16 0.0004 0.0032 0.000500 0.00112 0.000820 0.000999Tetrachloroethene 0.05 30 100 1/16 0.00068 0.00068 0.000500 0.000511 0.000510 0.0000450Toluene 50 40 100 1/16 0.00032 0.00032 0.000500 0.000489 0.000486 0.0000450Total VOCs 5 Not Listed Not Listed 9/16 0.00032 0.0034 0.00320 0.0182 0.00539 0.0225Semivolatile Organicsbis(2-Ethylhexyl)phthalate Not Listed 50 100 4/16 0.00053 0.0016 0.00260 0.00248 0.00220 0.00121Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 1/16 1.5E-09 1.5E-09 1.20E-09 1.65E-09 1.01E-09 1.61E-09TCDFs (total) Not Listed Not Listed Not Listed 3/16 7.8E-10 2.30E-08 1.30E-09 3.08E-09 1.48E-09 5.53E-091,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 1/16 6.5E-09 6.5E-09 2.55E-09 4.19E-09 1.84E-09 6.86E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 1/16 5.2E-09 5.2E-09 2.55E-09 4.09E-09 1.68E-09 6.85E-09PeCDFs (total) Not Listed Not Listed Not Listed 4/16 1.4E-09 1.20E-08 2.60E-09 5.07E-09 2.66E-09 7.00E-091,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 0/16 ND ND 2.55E-09 3.98E-09 1.57E-09 6.84E-091,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 1/16 6.3E-10 6.3E-10 2.55E-09 3.97E-09 1.55E-09 6.84E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 0/16 ND ND 2.60E-09 4.02E-09 1.71E-09 6.82E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 0/16 ND ND 2.55E-09 3.96E-09 1.48E-09 6.85E-09HxCDFs (total) Not Listed Not Listed Not Listed 1/16 8.5E-10 1.3E-09 2.60E-09 4.12E-09 2.02E-09 6.77E-091,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 0/16 ND ND 2.55E-09 3.97E-09 1.59E-09 6.84E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 0/16 ND ND 2.55E-09 4.06E-09 1.71E-09 6.81E-09HpCDFs (total) Not Listed Not Listed Not Listed 1/16 3E-10 5.3E-10 2.55E-09 4.08E-09 1.90E-09 6.79E-09OCDF Not Listed Not Listed Not Listed 0/16 ND ND 5.00E-09 8.28E-09 3.72E-09 1.38E-08Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 1/16 2.2E-10 2.2E-10 1.15E-09 1.68E-09 1.10E-09 1.59E-09TCDDs (total) Not Listed Not Listed Not Listed 2/16 1.5E-09 3.7E-09 1.45E-09 1.95E-09 1.49E-09 1.55E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 1/16 3.5E-10 3.5E-10 2.55E-09 4.00E-09 1.78E-09 6.82E-09PeCDDs (total) Not Listed Not Listed Not Listed 2/16 3.5E-10 3.5E-09 2.55E-09 4.13E-09 2.07E-09 6.76E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 2/16 2.3E-10 2.7E-10 2.60E-09 4.39E-09 1.94E-09 6.79E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 2/16 3.1E-10 4.3E-10 2.60E-09 4.38E-09 1.99E-09 6.79E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 1/16 9.8E-10 1.5E-09 2.60E-09 4.44E-09 1.94E-09 6.77E-09HxCDDs (total) Not Listed Not Listed Not Listed 2/16 1.5E-09 3.2E-09 2.60E-09 4.72E-09 2.78E-09 6.63E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 0/16 ND ND 2.65E-09 4.74E-09 2.36E-09 6.75E-09HpCDDs (total) Not Listed Not Listed Not Listed 2/16 5E-11 6.00E-09 2.80E-09 4.94E-09 2.40E-09 6.74E-09OCDD Not Listed Not Listed Not Listed 2/16 2.50E-08 4.00E-08 5.50E-09 1.27E-08 6.05E-09 1.59E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 16/16 6.3E-10 6.80E-08 7.10E-09 1.11E-08 5.59E-09 1.69E-08

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - GMA4-6 Page 1 of 2 7/25/2014

Page 158: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-3Summary Of Historical Groundwater Analytical Results - Well GMA4-6

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

InorganicsSulfide Not Listed Not Listed Not Listed 2/16 1 1.1 0.500 0.697 0.656 0.257Inorganics-filteredAntimony Not Listed 8 80 1/16 0.00696 0.00696 0.0200 0.0169 0.0132 0.00676Arsenic Not Listed 0.9 9 1/16 0.0011 0.0012 0.00500 0.00457 0.00431 0.00118Barium Not Listed 50 100 5/16 0.00701 0.041 0.0500 0.103 0.0588 0.103Beryllium Not Listed 0.2 2 3/16 0.00449 0.0403 0.00500 0.00565 0.00450 0.00474Cadmium Not Listed 0.004 0.05 5/16 0.000051 0.0002 0.00150 0.00148 0.000749 0.00135Calcium Not Listed Not Listed Not Listed 1/1 109 112 111 111 111 NAChromium Not Listed 0.3 3 3/16 0.00022 0.0109 0.00500 0.00466 0.00428 0.00126Cobalt Not Listed Not Listed Not Listed 1/16 0.000076 0.000078 0.00500 0.00594 0.00426 0.00523Copper Not Listed Not Listed Not Listed 3/16 0.0014 0.00737 0.00500 0.0290 0.0101 0.0424Cyanide-MADEP (PAC) Not Listed 0.03 2 1/16 0.027 0.027 0.00500 0.00506 0.00458 0.00307Lead Not Listed 0.01 0.15 3/16 0.00032 0.00899 0.00500 0.00474 0.00423 0.00144Magnesium Not Listed Not Listed Not Listed 1/1 37.3 38.2 37.8 37.8 37.8 NAManganese Not Listed Not Listed Not Listed 1/1 0.0133 0.0146 0.0140 0.0140 0.0140 NAMercury Not Listed 0.02 0.2 2/16 0.0000355 0.0000382 0.000122 0.000125 0.000107 0.0000729Nickel Not Listed 0.2 2 3/16 0.00059 0.0512 0.00532 0.0134 0.00890 0.0105Potassium Not Listed Not Listed Not Listed 1/1 2.79 2.85 2.82 2.82 2.82 NASelenium Not Listed 0.1 1 3/16 0.00415 0.011 0.0100 0.00895 0.00780 0.00267Sodium Not Listed Not Listed Not Listed 1/1 97 100 98.5 98.5 98.5 NAThallium Not Listed 3 30 3/16 0.00652 0.0105 0.00500 0.00501 0.00446 0.00172Zinc Not Listed 0.9 50 10/16 0.00285 0.119 0.0112 0.0203 0.0135 0.0274

Notes:

1. Samples were collected by ARCADIS between 2006 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - GMA4-6 Page 2 of 2 7/25/2014

Page 159: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-4Summary Of Historical Groundwater Analytical Results - Well H78B-15

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1221 Not Listed Not Listed Not Listed 1/8 0.0097 0.0097 0.0000330 0.00136 0.0000993 0.00339Aroclor-1254 Not Listed Not Listed Not Listed 3/8 0.00002 0.000039 0.0000340 0.000249 0.0000709 0.000455Total PCBs 0.005 0.01 0.1 4/8 0.00002 0.0097 0.0000340 0.00136 0.0000994 0.00339PCBs-FilteredAroclor-1221 Not Listed Not Listed Not Listed 1/28 0.0084 0.0084 0.0000335 0.000380 0.0000555 0.00158Aroclor-1254 Not Listed Not Listed Not Listed 5/28 0.000024 0.00033 0.0000340 0.000119 0.0000548 0.000254Aroclor-1260 Not Listed Not Listed Not Listed 2/28 0.00019 0.00051 0.0000340 0.000114 0.0000540 0.000252Total PCBs 0.005 0.01 0.1 8/28 0.000024 0.0084 0.0000345 0.000379 0.0000625 0.00158Volatile Organics1,1-Dichloroethane 1 20 100 2/29 0.0001 0.00022 0.000500 0.00137 0.000946 0.00104Acetone 50 50 100 1/29 0.0031 0.0031 0.00500 0.00726 0.00526 0.00898Chlorobenzene 0.2 1 10 1/29 0.00063 0.00063 0.000500 0.00149 0.00106 0.00120Chloroform 0.05 20 100 4/29 0.00013 0.0049 0.000500 0.00151 0.000997 0.00122Chloromethane Not Listed Not Listed Not Listed 1/29 0.00061 0.00061 0.00100 0.00169 0.00116 0.00161Toluene 50 40 100 3/29 0.00015 0.0016 0.000500 0.00136 0.000982 0.000999Trichloroethene 0.03 5 50 2/29 0.00023 0.00065 0.000500 0.00139 0.00101 0.00102Total VOCs 5 Not Listed Not Listed 8/29 0.00013 0.0062 0.0500 0.0552 0.0191 0.0430Semivolatile Organicsbis(2-Ethylhexyl)phthalate Not Listed 50 100 3/28 0.00046 0.001 0.00300 0.00316 0.00258 0.00228Diethylphthalate 50 9 100 2/28 0.00091 0.0023 0.00500 0.00393 0.00362 0.00147Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 2/28 2.9E-10 5.1E-09 9.00E-10 1.43E-09 7.63E-10 1.42E-09TCDFs (total) Not Listed Not Listed Not Listed 7/28 2.9E-10 5.6E-08 1.15E-09 7.53E-09 1.53E-09 1.44E-081,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 6/28 3.5E-10 1.1E-08 2.15E-09 2.82E-09 1.25E-09 3.37E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 1/28 1.6E-09 1.6E-09 1.50E-09 2.88E-09 1.05E-09 5.39E-09PeCDFs (total) Not Listed Not Listed Not Listed 8/28 9E-10 3.8E-08 2.60E-09 6.45E-09 1.99E-09 1.01E-081,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.30E-09 2.94E-09 9.76E-10 5.43E-091,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 2/28 2.4E-10 1.6E-09 1.30E-09 2.79E-09 8.19E-10 5.44E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.30E-09 2.91E-09 9.35E-10 5.47E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 1/28 1.1E-09 1.1E-09 1.30E-09 2.81E-09 8.49E-10 5.45E-09HxCDFs (total) Not Listed Not Listed Not Listed 3/28 2.3E-12 2.4E-09 1.65E-09 3.24E-09 1.24E-09 5.49E-091,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 2/28 3.2E-12 1.5E-09 1.40E-09 3.35E-09 1.11E-09 5.94E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.60E-09 3.16E-09 1.12E-09 5.47E-09HpCDFs (total) Not Listed Not Listed Not Listed 3/28 3.2E-12 1.5E-09 1.70E-09 3.57E-09 1.33E-09 5.95E-09OCDF Not Listed Not Listed Not Listed 1/28 2.8E-09 2.8E-09 2.90E-09 6.37E-09 2.34E-09 1.11E-08

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - H78B-15 Page 1 of 3 7/25/2014

Page 160: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-4Summary Of Historical Groundwater Analytical Results - Well H78B-15

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 1/28 5.2E-10 5.2E-10 9.50E-10 1.23E-09 7.07E-10 1.12E-09TCDDs (total) Not Listed Not Listed Not Listed 1/28 3.2E-09 3.2E-09 1.05E-09 1.50E-09 8.60E-10 1.42E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 1/28 1.5E-09 1.5E-09 1.70E-09 3.06E-09 1.09E-09 5.40E-09PeCDDs (total) Not Listed Not Listed Not Listed 3/28 1.5E-09 5.1E-09 2.25E-09 3.34E-09 1.47E-09 5.35E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 2/28 2.4E-10 1.4E-09 1.90E-09 3.05E-09 1.11E-09 5.40E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 1/28 1.6E-09 1.6E-09 1.60E-09 3.02E-09 1.04E-09 5.40E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 0/28 ND ND 1.65E-09 3.03E-09 1.04E-09 5.41E-09HxCDDs (total) Not Listed Not Listed Not Listed 4/28 2.2E-12 3.2E-09 2.45E-09 3.70E-09 1.61E-09 5.67E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 3/28 3.9E-09 3.4E-08 2.35E-09 4.66E-09 1.69E-09 7.88E-09HpCDDs (total) Not Listed Not Listed Not Listed 4/28 2.8E-12 3.4E-08 2.35E-09 4.57E-09 1.68E-09 7.89E-09OCDD Not Listed Not Listed Not Listed 2/28 2.6E-11 7.8E-09 4.75E-09 7.73E-09 3.42E-09 1.13E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 28/28 1.7E-12 6.6E-08 4.90E-09 8.11E-09 3.42E-09 1.31E-08InorganicsAntimony Not Listed 8 80 2/8 0.0029 0.0099 0.0300 0.0205 0.0129 0.0134Arsenic Not Listed 0.9 9 1/8 0.02 0.02 0.00500 0.00614 0.00464 0.00577Barium Not Listed 50 100 7/8 0.0043 0.15 0.0347 0.0506 0.0295 0.0510Beryllium Not Listed 0.2 2 1/8 0.00093 0.00093 0.000500 0.00106 0.000620 0.00108Cadmium Not Listed 0.004 0.05 1/8 0.0025 0.0025 0.00250 0.00227 0.00180 0.000874Chromium Not Listed 0.3 3 2/8 0.0029 0.043 0.00500 0.00915 0.00502 0.0138Cobalt Not Listed Not Listed Not Listed 2/8 0.00066 0.031 0.0250 0.0233 0.0167 0.00950Copper Not Listed Not Listed Not Listed 5/8 0.0068 0.081 0.0110 0.0195 0.0134 0.0250Cyanide Not Listed 0.03 2 2/8 0.0037 0.012 0.00500 0.00634 0.00586 0.00296Lead Not Listed 0.01 0.15 1/8 0.031 0.031 0.00150 0.0131 0.00337 0.0234Nickel Not Listed 0.2 2 3/8 0.0036 0.056 0.0200 0.0222 0.0172 0.0159Sulfide Not Listed Not Listed Not Listed 3/28 6.4 14 1.00 2.15 1.26 2.87Vanadium Not Listed 4 40 1/8 0.033 0.033 0.0250 0.0235 0.0152 0.00987Zinc Not Listed 0.9 50 6/8 0.007 0.22 0.0135 0.0473 0.0216 0.0742

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - H78B-15 Page 2 of 3 7/25/2014

Page 161: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-4Summary Of Historical Groundwater Analytical Results - Well H78B-15

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAntimony Not Listed 8 80 3/28 0.00017 0.01 0.0200 0.0189 0.0126 0.00987Arsenic Not Listed 0.9 9 3/28 0.0019 0.0152 0.00500 0.00670 0.00521 0.00875Barium Not Listed 50 100 18/28 0.0045 0.07 0.0497 0.0735 0.0363 0.0873Beryllium Not Listed 0.2 2 4/28 0.00059 0.00529 0.000765 0.00250 0.00134 0.00225Cadmium Not Listed 0.004 0.05 2/28 0.000044 0.00088 0.00250 0.00198 0.00138 0.00124Calcium Not Listed Not Listed Not Listed 1/1 236 236 236 236 236 NAChromium Not Listed 0.3 3 4/28 0.00079 0.0026 0.00500 0.00448 0.00380 0.00222Cobalt Not Listed Not Listed Not Listed 1/28 0.000098 0.000098 0.00500 0.0132 0.00778 0.0105Copper Not Listed Not Listed Not Listed 7/28 0.00188 0.00737 0.00500 0.0214 0.00870 0.0339Cyanide Not Listed 0.03 2 3/8 0.0021 0.014 0.00500 0.00574 0.00508 0.00349Cyanide-MADEP (PAC) Not Listed 0.03 2 1/17 0.0018 0.0018 0.00500 0.0335 0.00547 0.120Lead Not Listed 0.01 0.15 2/28 0.0026 0.00826 0.00380 0.00351 0.00294 0.00190Magnesium Not Listed Not Listed Not Listed 1/1 97.8 97.8 97.8 97.8 97.8 NAMercury Not Listed 0.02 0.2 1/28 0.00002 0.00002 0.000100 0.000117 0.000106 0.0000555Nickel Not Listed 0.2 2 4/28 0.0015 0.00519 0.0200 0.0134 0.00914 0.00925Potassium Not Listed Not Listed Not Listed 1/1 8.23 8.23 8.23 8.23 8.23 NASelenium Not Listed 0.1 1 3/28 0.00388 0.021 0.00709 0.00672 0.00523 0.00461Silver Not Listed 0.007 1 1/28 0.0014 0.0014 0.00250 0.00233 0.00191 0.00109Sodium Not Listed Not Listed Not Listed 1/1 170 170 170 170 170 NAThallium Not Listed 3 30 3/28 0.00819 0.0136 0.00500 0.00529 0.00483 0.00211Tin Not Listed Not Listed Not Listed 1/27 0.00892 0.00892 0.0150 0.0274 0.0197 0.0195Vanadium Not Listed 4 40 1/28 0.00587 0.00587 0.0250 0.0219 0.0175 0.00778Zinc Not Listed 0.9 50 10/28 0.00361 0.194 0.0100 0.0211 0.0112 0.0398

Notes:

1. Samples were collected by ARCADIS between 1996 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - H78B-15 Page 3 of 3 7/25/2014

Page 162: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-5Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-1RR

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBs-FilteredAroclor-1254 Not Listed Not Listed Not Listed 1/12 0.00024 0.00024 0.0000340 0.0000706 0.0000536 0.0000656Aroclor-1260 Not Listed Not Listed Not Listed 1/12 0.00021 0.00021 0.0000340 0.0000681 0.0000530 0.0000588Total PCBs 0.005 0.01 0.1 1/12 0.00045 0.00045 0.0000340 0.0000881 0.0000564 0.000120Volatile OrganicsAcetone 50 50 100 1/12 0.053 0.053 0.765 1.03 0.504 0.876Chloroform 0.05 20 100 3/12 0.0088 0.0093 0.100 0.109 0.0610 0.0905Methylene Chloride 10 50 100 1/12 0.39 0.39 0.450 0.492 0.194 0.435Tetrachloroethene 0.05 30 100 12/12 1 5.6 3.10 3.33 3.03 1.37Trichloroethene 0.03 5 50 8/12 0.016 0.042 0.0350 0.0928 0.0558 0.0950Xylenes (total) 9 5 100 1/12 0.015 0.015 0.180 0.136 0.0714 0.0912Total VOCs 5 Not Listed Not Listed 12/12 1 5.7 3.25 3.38 3.08 1.38Semivolatile Organicsbis(2-Ethylhexyl)phthalate Not Listed 50 100 1/12 0.00077 0.00077 0.00260 0.00232 0.00221 0.000644Phenol 50 2 100 1/12 0.0034 0.0034 0.00260 0.00273 0.00272 0.000253Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 1/12 8.8E-10 8.8E-10 7.25E-10 1.28E-09 7.60E-10 1.50E-09TCDFs (total) Not Listed Not Listed Not Listed 3/12 1.2E-09 5.8E-09 1.75E-09 2.43E-09 1.82E-09 1.96E-091,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 0/12 ND ND 9.00E-10 4.53E-09 1.26E-09 8.60E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 2/12 5.7E-10 1.8E-09 9.00E-10 3.52E-09 1.06E-09 8.08E-09PeCDFs (total) Not Listed Not Listed Not Listed 3/12 5.7E-10 2.6E-09 2.60E-09 4.75E-09 2.04E-09 8.06E-091,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 1/12 3.2E-09 3.2E-09 1.00E-09 3.65E-09 1.13E-09 8.06E-091,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 2/12 4E-10 2.3E-09 8.50E-10 3.55E-09 1.10E-09 8.08E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 0/12 ND ND 1.13E-09 4.58E-09 1.33E-09 8.58E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 2/12 7.7E-10 1.6E-09 1.04E-09 3.55E-09 1.18E-09 8.07E-09HxCDFs (total) Not Listed Not Listed Not Listed 4/12 4.4E-10 2.7E-09 2.05E-09 4.60E-09 1.78E-09 8.21E-091,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 1/12 6.00E-09 6.00E-09 1.45E-09 3.98E-09 1.32E-09 8.05E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 0/12 ND ND 1.38E-09 4.72E-09 1.47E-09 8.53E-09HpCDFs (total) Not Listed Not Listed Not Listed 1/12 3.6E-10 3.6E-10 1.45E-09 4.01E-09 1.63E-09 7.98E-09OCDF Not Listed Not Listed Not Listed 0/12 ND ND 2.65E-09 9.33E-09 3.28E-09 1.62E-08Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 0/12 ND ND 7.50E-10 1.42E-09 8.58E-10 1.54E-09TCDDs (total) Not Listed Not Listed Not Listed 1/12 2.5E-09 2.5E-09 1.30E-09 1.68E-09 1.21E-09 1.47E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 1/12 8.5E-10 8.5E-10 1.18E-09 4.62E-09 1.46E-09 8.56E-09PeCDDs (total) Not Listed Not Listed Not Listed 1/12 4.2E-09 4.2E-09 2.60E-09 5.28E-09 2.37E-09 8.31E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 2/12 2.3E-10 4.3E-10 1.40E-09 4.88E-09 1.70E-09 8.50E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 1/12 3.6E-10 3.6E-10 1.30E-09 4.83E-09 1.57E-09 8.52E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 0/12 ND ND 1.45E-09 4.86E-09 1.56E-09 8.50E-09HxCDDs (total) Not Listed Not Listed Not Listed 2/12 4.3E-10 3.4E-09 2.15E-09 5.16E-09 2.17E-09 8.38E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 1/12 3.6E-09 3.6E-09 2.20E-09 4.70E-09 1.99E-09 7.96E-09HpCDDs (total) Not Listed Not Listed Not Listed 1/12 5.8E-10 5.8E-10 2.20E-09 5.64E-09 2.57E-09 8.33E-09OCDD Not Listed Not Listed Not Listed 2/12 9.8E-09 1.80E-08 5.05E-09 1.04E-08 4.99E-09 1.51E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 12/12 7E-10 7.10E-08 3.65E-09 1.12E-08 4.26E-09 2.00E-08

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-1RR Page 1 of 2 7/25/2014

Page 163: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-5Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-1RR

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

InorganicsSulfide Not Listed Not Listed Not Listed 2/12 1.2 1.3 0.775 0.796 0.740 0.314Inorganics-filteredAntimony Not Listed 8 80 2/12 0.0001 0.00327 0.0200 0.0139 0.00694 0.00904Arsenic Not Listed 0.9 9 2/12 0.0013 0.00195 0.00500 0.00419 0.00383 0.00148Barium Not Listed 50 100 9/12 0.0401 0.0882 0.0688 0.0794 0.0698 0.0556Beryllium Not Listed 0.2 2 2/12 0.00053 0.0143 0.00500 0.00486 0.00378 0.00341Cadmium Not Listed 0.004 0.05 6/12 0.00006 0.0273 0.00150 0.00379 0.00157 0.00745Calcium Not Listed Not Listed Not Listed 1/1 118 118 118 118 118 NAChromium Not Listed 0.3 3 3/12 0.00153 0.00209 0.00500 0.00387 0.00339 0.00168Cobalt Not Listed Not Listed Not Listed 1/12 0.000028 0.000028 0.00500 0.00625 0.00371 0.00607Copper Not Listed Not Listed Not Listed 1/12 0.00658 0.00659 0.00500 0.0292 0.0102 0.0428Lead Not Listed 0.01 0.15 3/12 0.00395 0.00982 0.00500 0.00503 0.00422 0.00240Magnesium Not Listed Not Listed Not Listed 1/1 56.1 56.1 56.1 56.1 56.1 NAManganese Not Listed Not Listed Not Listed 1/1 0.109 0.109 0.109 0.109 0.109 NAMercury Not Listed 0.02 0.2 1/12 0.0000373 0.0000373 0.000100 0.000128 0.000109 0.0000803Nickel Not Listed 0.2 2 1/12 0.00041 0.00041 0.00500 0.0125 0.00779 0.0103Potassium Not Listed Not Listed Not Listed 1/1 3.31 3.31 3.31 3.31 3.31 NASelenium Not Listed 0.1 1 1/12 0.00297 0.00297 0.0100 0.00821 0.00665 0.00339Sodium Not Listed Not Listed Not Listed 1/1 216 216 216 216 216 NAThallium Not Listed 3 30 2/12 0.00933 0.0102 0.00500 0.00521 0.00435 0.00255Tin Not Listed Not Listed Not Listed 1/11 0.02 0.02 0.0500 0.0432 0.0373 0.0155Zinc Not Listed 0.9 50 7/12 0.00682 0.0803 0.0137 0.0218 0.0165 0.0205

Notes:

1. Samples were collected by ARCADIS between 2008 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-1RR Page 2 of 2 7/25/2014

Page 164: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-6Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-2/OPCA-MW-2R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1254 Not Listed Not Listed Not Listed 4/7 0.000033 0.00014 0.0000330 0.0000677 0.0000543 0.0000474Aroclor-1260 Not Listed Not Listed Not Listed 3/7 0.000022 0.00047 0.0000330 0.0000969 0.0000491 0.000165Total PCBs 0.005 0.01 0.1 5/7 0.000022 0.00061 0.0000330 0.000141 0.0000689 0.000212PCBs-FilteredAroclor-1254 Not Listed Not Listed Not Listed 7/26 0.00002 0.00026 0.0000355 0.0000646 0.0000498 0.0000584Aroclor-1260 Not Listed Not Listed Not Listed 1/26 0.00067 0.00067 0.0000335 0.0000678 0.0000436 0.000126Total PCBs 0.005 0.01 0.1 7/26 0.00002 0.00093 0.0000355 0.0000904 0.0000523 0.000176Volatile Organics1,1,1-Trichloroethane 4 20 100 2/27 0.00013 0.00013 0.000500 0.00136 0.000925 0.001042-Butanone 50 50 100 1/27 0.0014 0.0014 0.00500 0.00718 0.00492 0.00938Acetone 50 50 100 3/27 0.0014 0.0088 0.00500 0.00700 0.00500 0.00917Bromodichloromethane 0.006 50 100 1/27 0.00019 0.00019 0.000500 0.00138 0.000986 0.00102Chlorobenzene 0.2 1 10 1/27 0.0028 0.0028 0.000500 0.00140 0.00103 0.00103Chloroform 0.05 20 100 1/27 0.00047 0.00047 0.000500 0.00139 0.00102 0.00101Chloromethane Not Listed Not Listed Not Listed 1/27 0.00033 0.00033 0.00100 0.00151 0.00109 0.00119Tetrachloroethene 0.05 30 100 1/27 0.003 0.003 0.000500 0.000870 0.000752 0.000598Toluene 50 40 100 5/27 0.00013 0.0025 0.000500 0.00134 0.000955 0.000999Trichloroethene 0.03 5 50 1/27 0.0011 0.0011 0.000500 0.00141 0.00105 0.000999Trichlorofluoromethane Not Listed Not Listed Not Listed 1/27 0.0004 0.00041 0.000500 0.00139 0.00101 0.00102Xylenes (total) 9 5 100 1/27 0.00025 0.00025 0.00100 0.00249 0.00150 0.00216Total VOCs 5 Not Listed Not Listed 11/27 0.00013 0.01 0.0500 0.0448 0.0143 0.0434Semivolatile Organics1,2,4-Trichlorobenzene 2 50 100 1/27 0.0016 0.0016 0.00500 0.00392 0.00374 0.00116bis(2-Ethylhexyl)phthalate Not Listed 50 100 1/27 0.0012 0.0012 0.00300 0.00299 0.00280 0.00103Di-n-Octylphthalate Not Listed Not Listed Not Listed 1/27 0.00058 0.00058 0.00500 0.00391 0.00360 0.00131Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-2 Page 1 of 4 7/25/2014

Page 165: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-6Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-2/OPCA-MW-2R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 2/27 2E-09 3.2E-09 9.50E-10 1.42E-09 1.02E-09 1.21E-09TCDFs (total) Not Listed Not Listed Not Listed 6/27 1.5E-09 5.00E-08 1.40E-09 3.60E-09 1.56E-09 8.22E-091,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 3/27 2.2E-09 4.3E-09 2.20E-09 2.22E-09 1.24E-09 2.44E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 0/27 ND ND 1.60E-09 2.94E-09 1.54E-09 5.20E-09PeCDFs (total) Not Listed Not Listed Not Listed 5/27 3E-09 4.9E-08 2.40E-09 4.26E-09 1.85E-09 6.85E-091,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 3/27 2E-09 5.5E-09 2.00E-09 2.27E-09 1.23E-09 2.54E-091,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 1/27 4.6E-10 4.6E-10 1.30E-09 2.99E-09 1.23E-09 5.24E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 1/27 1.8E-09 1.8E-09 2.50E-09 3.38E-09 1.87E-09 5.20E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 1/27 1.7E-09 1.7E-09 2.20E-09 3.20E-09 1.72E-09 5.18E-09HxCDFs (total) Not Listed Not Listed Not Listed 4/27 7E-10 1.7E-08 2.50E-09 3.27E-09 1.78E-09 3.37E-091,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 3/27 8.9E-10 3.4E-09 1.40E-09 2.29E-09 1.54E-09 2.74E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 1/27 3.9E-09 3.9E-09 2.50E-09 3.60E-09 2.01E-09 5.33E-09HpCDFs (total) Not Listed Not Listed Not Listed 4/27 1.6E-10 1.4E-08 2.50E-09 4.62E-09 2.28E-09 6.42E-09OCDF Not Listed Not Listed Not Listed 1/27 2.2E-08 2.2E-08 4.80E-09 7.78E-09 4.46E-09 1.12E-08Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 1/27 2.7E-10 2.7E-10 1.20E-09 1.35E-09 1.10E-09 1.02E-09TCDDs (total) Not Listed Not Listed Not Listed 1/27 2.1E-09 2.1E-09 1.30E-09 1.65E-09 1.28E-09 1.60E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 2/27 5.3E-10 6.5E-10 2.50E-09 3.34E-09 2.01E-09 5.13E-09PeCDDs (total) Not Listed Not Listed Not Listed 3/27 6.5E-10 1.00E-08 2.50E-09 2.99E-09 2.11E-09 2.95E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 3/27 3.5E-10 1.4E-09 2.50E-09 3.50E-09 2.12E-09 5.10E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 2/27 5.1E-10 8.1E-10 2.40E-09 3.41E-09 1.64E-09 5.14E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 0/27 ND ND 2.50E-09 3.42E-09 1.54E-09 5.14E-09HxCDDs (total) Not Listed Not Listed Not Listed 4/27 8.8E-10 1.2E-08 2.50E-09 3.43E-09 2.02E-09 3.46E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 4/27 3.1E-09 8.6E-09 2.50E-09 3.76E-09 2.58E-09 3.42E-09HpCDDs (total) Not Listed Not Listed Not Listed 6/27 1.3E-09 2.00E-08 2.50E-09 4.63E-09 2.81E-09 5.51E-09OCDD Not Listed Not Listed Not Listed 7/27 8.6E-09 5.10E-07 6.50E-09 2.97E-08 6.40E-09 9.77E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 27/27 1.2E-09 6.2E-08 5.80E-09 8.79E-09 5.66E-09 1.21E-08

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-2 Page 2 of 4 7/25/2014

Page 166: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-6Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-2/OPCA-MW-2R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

InorganicsAntimony Not Listed 8 80 1/7 0.012 0.012 0.0300 0.0274 0.0263 0.00680Arsenic Not Listed 0.9 9 1/7 0.019 0.019 0.00500 0.00671 0.00562 0.00547Barium Not Listed 50 100 6/7 0.019 0.13 0.0200 0.0487 0.0348 0.0464Beryllium Not Listed 0.2 2 1/7 0.00082 0.00082 0.000500 0.000903 0.000693 0.000932Cadmium Not Listed 0.004 0.05 1/7 0.003 0.003 0.00250 0.00264 0.00263 0.000244Chromium Not Listed 0.3 3 2/7 0.0032 0.051 0.00500 0.0126 0.00774 0.0172Cobalt Not Listed Not Listed Not Listed 2/7 0.0025 0.018 0.0250 0.0215 0.0176 0.00908Copper Not Listed Not Listed Not Listed 2/7 0.0028 0.051 0.0125 0.0172 0.0128 0.0155Lead Not Listed 0.01 0.15 1/7 0.018 0.018 0.00150 0.0131 0.00394 0.0237Mercury Not Listed 0.02 0.2 1/7 0.0004 0.0004 0.000100 0.000164 0.000139 0.000118Nickel Not Listed 0.2 2 1/7 0.036 0.036 0.0200 0.0237 0.0230 0.00658Selenium Not Listed 0.1 1 1/7 0.0089 0.0089 0.00250 0.00349 0.00308 0.00239Silver Not Listed 0.007 1 1/7 0.0018 0.0018 0.00250 0.00297 0.00273 0.00158Sulfide Not Listed Not Listed Not Listed 5/27 0.66 4.8 1.40 1.65 1.29 1.10Vanadium Not Listed 4 40 2/7 0.003 0.038 0.0250 0.0244 0.0201 0.0106Zinc Not Listed 0.9 50 3/7 0.011 0.15 0.0110 0.0314 0.0166 0.0523

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-2 Page 3 of 4 7/25/2014

Page 167: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-6Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-2/OPCA-MW-2R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAntimony Not Listed 8 80 2/26 0.007 0.0071 0.0200 0.0211 0.0171 0.00866Arsenic Not Listed 0.9 9 1/26 0.00255 0.00255 0.00500 0.00635 0.00474 0.00897Barium Not Listed 50 100 19/26 0.0128 0.0435 0.0205 0.0455 0.0283 0.0632Beryllium Not Listed 0.2 2 2/26 0.00386 0.00954 0.00293 0.00294 0.00169 0.00256Cadmium Not Listed 0.004 0.05 3/26 0.0001 0.00263 0.00250 0.00198 0.00139 0.00127Calcium Not Listed Not Listed Not Listed 1/1 116 116 116 116 116 NAChromium Not Listed 0.3 3 1/26 0.00223 0.00223 0.00500 0.00532 0.00489 0.00231Cobalt Not Listed Not Listed Not Listed 2/26 0.000056 0.001 0.00500 0.0136 0.00862 0.0101Copper Not Listed Not Listed Not Listed 1/26 0.0016 0.0016 0.0125 0.0242 0.0117 0.0342Lead Not Listed 0.01 0.15 1/26 0.0042 0.0042 0.00335 0.00333 0.00282 0.00169Magnesium Not Listed Not Listed Not Listed 1/1 55 55 55.0 55.0 55.0 NAManganese Not Listed Not Listed Not Listed 1/1 0.0111 0.0111 0.0111 0.0111 0.0111 NAMercury Not Listed 0.02 0.2 1/26 0.00021 0.00021 0.000100 0.000124 0.000115 0.0000567Nickel Not Listed 0.2 2 5/26 0.00036 0.00638 0.0200 0.0139 0.00970 0.00902Potassium Not Listed Not Listed Not Listed 1/1 1.87 1.87 1.87 1.87 1.87 NASelenium Not Listed 0.1 1 6/26 0.00272 0.0111 0.00434 0.00583 0.00471 0.00363Sodium Not Listed Not Listed Not Listed 1/1 17 17 17.0 17.0 17.0 NAThallium Not Listed 3 30 1/26 0.0107 0.0107 0.00500 0.00495 0.00459 0.00154Tin Not Listed Not Listed Not Listed 1/25 0.00262 0.00262 0.0150 0.0273 0.0198 0.0193Vanadium Not Listed 4 40 1/26 0.0012 0.0012 0.0250 0.0224 0.0190 0.00728Zinc Not Listed 0.9 50 11/26 0.00252 0.021 0.0100 0.0113 0.00954 0.00659

Notes:

1. Samples were collected by ARCADIS between 1999 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-2 Page 4 of 4 7/25/2014

Page 168: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-7Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-3

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1254 Not Listed Not Listed Not Listed 4/7 0.000037 0.000084 0.0000370 0.0000430 0.0000410 0.0000166Total PCBs 0.005 0.01 0.1 4/7 0.000037 0.000084 0.0000370 0.0000430 0.0000410 0.0000166PCBs-FilteredAroclor-1254 Not Listed Not Listed Not Listed 7/27 0.000033 0.00018 0.0000350 0.0000513 0.0000446 0.0000364Aroclor-1260 Not Listed Not Listed Not Listed 1/26 0.000039 0.000039 0.0000330 0.0000435 0.0000395 0.0000263Total PCBs 0.005 0.01 0.1 7/27 0.000033 0.00018 0.0000350 0.0000528 0.0000457 0.0000368Volatile OrganicsAcetone 50 50 100 5/28 0.0013 0.021 0.00500 0.00714 0.00495 0.00938Carbon Disulfide Not Listed Not Listed Not Listed 1/28 0.00055 0.00055 0.000525 0.00152 0.00109 0.00120Methylene Chloride 10 50 100 1/28 0.00035 0.00035 0.00250 0.00232 0.00218 0.000550Total VOCs 5 Not Listed Not Listed 6/28 0.00055 0.021 0.0500 0.0578 0.0364 0.0363Semivolatile Organicsbis(2-Ethylhexyl)phthalate Not Listed 50 100 2/28 0.00085 0.0095 0.00300 0.00323 0.00289 0.00165Di-n-Butylphthalate Not Listed Not Listed Not Listed 1/28 0.0018 0.0018 0.00500 0.00400 0.00374 0.00146Phenol 50 2 100 1/27 0.011 0.011 0.00500 0.00401 0.00376 0.00148Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 4/28 2.4E-09 5.9E-09 1.05E-09 1.61E-09 8.39E-10 1.52E-09TCDFs (total) Not Listed Not Listed Not Listed 6/28 2.4E-09 8.8E-09 1.45E-09 2.07E-09 1.17E-09 2.00E-091,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 3/28 6.8E-10 2.9E-09 1.70E-09 2.95E-09 1.16E-09 5.38E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 2/28 8.6E-10 1.9E-09 1.45E-09 2.92E-09 1.10E-09 5.39E-09PeCDFs (total) Not Listed Not Listed Not Listed 5/28 1.5E-09 4.7E-09 2.05E-09 3.15E-09 1.46E-09 5.32E-091,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 1/28 3.2E-12 3.2E-12 1.20E-09 2.45E-09 9.30E-10 5.01E-091,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 3/28 5.3E-10 2.4E-09 1.25E-09 2.43E-09 9.38E-10 4.99E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 1/28 2.3E-10 2.3E-10 1.30E-09 3.02E-09 1.06E-09 5.48E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 2/28 8E-10 8E-10 1.20E-09 2.43E-09 9.15E-10 5.01E-09HxCDFs (total) Not Listed Not Listed Not Listed 4/28 5.3E-10 2.4E-09 1.80E-09 2.71E-09 1.25E-09 4.95E-091,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 3/28 1.4E-09 3E-09 1.55E-09 2.60E-09 1.16E-09 4.91E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 0/28 ND ND 1.70E-09 3.19E-09 1.24E-09 5.38E-09HpCDFs (total) Not Listed Not Listed Not Listed 3/28 2.9E-10 3E-09 1.80E-09 2.90E-09 1.31E-09 4.99E-09OCDF Not Listed Not Listed Not Listed 0/28 ND ND 3.50E-09 6.38E-09 2.65E-09 1.10E-08

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-3 Page 1 of 3 7/25/2014

Page 169: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-7Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-3

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 0/28 ND ND 9.75E-10 1.39E-09 7.92E-10 1.18E-09TCDDs (total) Not Listed Not Listed Not Listed 1/28 1.9E-09 1.9E-09 1.20E-09 1.64E-09 9.87E-10 1.45E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 2/28 1.9E-12 2.7E-09 2.00E-09 3.10E-09 1.32E-09 5.35E-09PeCDDs (total) Not Listed Not Listed Not Listed 3/28 1.9E-12 4.3E-09 2.50E-09 3.54E-09 1.73E-09 5.32E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 1/28 2.3E-12 2.3E-12 2.10E-09 3.12E-09 1.34E-09 5.33E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 1/28 3.1E-12 3.1E-12 2.00E-09 3.08E-09 1.28E-09 5.35E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 0/28 ND ND 2.10E-09 3.11E-09 1.28E-09 5.34E-09HxCDDs (total) Not Listed Not Listed Not Listed 2/28 1.5E-09 1.5E-09 2.45E-09 3.53E-09 1.69E-09 5.48E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 1/28 1.5E-09 1.5E-09 2.00E-09 3.34E-09 1.61E-09 5.06E-09HpCDDs (total) Not Listed Not Listed Not Listed 1/28 7.6E-10 7.6E-10 2.10E-09 3.52E-09 1.71E-09 5.23E-09OCDD Not Listed Not Listed Not Listed 2/28 5.4E-09 7.7E-09 4.65E-09 7.07E-09 3.56E-09 1.03E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 28/28 3.4E-12 6.6E-08 6.10E-09 8.27E-09 3.89E-09 1.27E-08InorganicsArsenic Not Listed 0.9 9 1/7 0.0042 0.0042 0.00500 0.00460 0.00453 0.000766Barium Not Listed 50 100 6/7 0.0095 0.11 0.0760 0.0708 0.0564 0.0379Chromium Not Listed 0.3 3 2/7 0.0013 0.0041 0.00500 0.00584 0.00531 0.00313Cobalt Not Listed Not Listed Not Listed 3/7 0.0021 0.0036 0.0250 0.0161 0.00977 0.0127Copper Not Listed Not Listed Not Listed 4/7 0.0028 0.0075 0.00730 0.00914 0.00798 0.00478Cyanide Not Listed 0.03 2 2/7 0.0022 0.0027 0.00500 0.00519 0.00482 0.00231Nickel Not Listed 0.2 2 4/7 0.0021 0.0052 0.0126 0.0135 0.00971 0.0103Selenium Not Listed 0.1 1 1/7 0.0054 0.0054 0.00250 0.00299 0.00286 0.00108Sulfide Not Listed Not Listed Not Listed 1/27 6.4 6.4 1.00 1.54 1.16 1.10Zinc Not Listed 0.9 50 4/7 0.011 0.088 0.0113 0.0273 0.0193 0.0285

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-3 Page 2 of 3 7/25/2014

Page 170: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-7Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-3

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAntimony Not Listed 8 80 3/27 0.0074 0.01 0.0200 0.0208 0.0173 0.00800Arsenic Not Listed 0.9 9 1/27 0.0011 0.0011 0.00500 0.00641 0.00498 0.00876Barium Not Listed 50 100 21/27 0.0277 0.12 0.0519 0.0650 0.0571 0.0434Beryllium Not Listed 0.2 2 6/27 0.0003 0.00713 0.00135 0.00267 0.00148 0.00238Cadmium Not Listed 0.004 0.05 6/27 0.00007 0.00081 0.00250 0.00198 0.00133 0.00126Calcium Not Listed Not Listed Not Listed 1/1 104 104 104 104 104 NAChromium Not Listed 0.3 3 6/27 0.00063 0.075 0.00500 0.00743 0.00450 0.0138Cobalt Not Listed Not Listed Not Listed 7/27 0.00018 0.0044 0.00500 0.00949 0.00574 0.00944Copper Not Listed Not Listed Not Listed 10/27 0.0014 0.019 0.00500 0.0249 0.00923 0.0376Cyanide-MADEP (PAC) Not Listed 0.03 2 1/17 0.0013 0.0013 0.00500 0.00419 0.00397 0.00119Lead Not Listed 0.01 0.15 2/27 0.0022 0.00564 0.00500 0.00348 0.00295 0.00172Magnesium Not Listed Not Listed Not Listed 1/1 22.4 22.4 22.4 22.4 22.4 NAManganese Not Listed Not Listed Not Listed 1/1 2.25 2.25 2.25 2.25 2.25 NAMercury Not Listed 0.02 0.2 2/27 0.0000383 0.000197 0.000100 0.000121 0.000111 0.0000567Nickel Not Listed 0.2 2 15/27 0.0017 0.00664 0.00500 0.00919 0.00615 0.00857Potassium Not Listed Not Listed Not Listed 1/1 1.9 1.9 1.90 1.90 1.90 NASelenium Not Listed 0.1 1 1/27 0.0077 0.0077 0.0100 0.00660 0.00517 0.00378Sodium Not Listed Not Listed Not Listed 1/1 14.2 14.2 14.2 14.2 14.2 NAThallium Not Listed 3 30 4/27 0.00012 0.011 0.00500 0.00511 0.00449 0.00172Zinc Not Listed 0.9 50 11/27 0.00178 0.032 0.0100 0.0118 0.0104 0.00644

Notes:

1. Samples were collected by ARCADIS between 1999 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split.

For locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-3 Page 3 of 3 7/25/2014

Page 171: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-8Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-4

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1254 Not Listed Not Listed Not Listed 7/7 0.000055 0.00089 0.000200 0.000391 0.000254 0.000344Aroclor-1260 Not Listed Not Listed Not Listed 2/7 0.00011 0.00047 0.0000330 0.000105 0.0000551 0.000163Total PCBs 0.005 0.01 0.1 7/7 0.000055 0.0013 0.000200 0.000480 0.000280 0.000477PCBs-FilteredAroclor-1248 Not Listed Not Listed Not Listed 2/27 0.00014 0.00031 0.0000330 0.0000620 0.0000467 0.0000647Aroclor-1254 Not Listed Not Listed Not Listed 14/27 0.000029 0.0011 0.0000740 0.000134 0.0000813 0.000207Aroclor-1260 Not Listed Not Listed Not Listed 5/27 0.000043 0.00047 0.0000340 0.0000683 0.0000483 0.0000899Total PCBs 0.005 0.01 0.1 17/27 0.000029 0.0016 0.000130 0.000175 0.0000980 0.000299Volatile OrganicsAcetone 50 50 100 4/28 0.0014 0.0077 0.00500 0.00710 0.00491 0.00948Benzene 2 10 100 3/28 0.00013 0.00036 0.000500 0.00131 0.000870 0.00105Chlorobenzene 0.2 1 10 8/28 0.00012 0.0023 0.00134 0.00144 0.000978 0.00104Chloromethane Not Listed Not Listed Not Listed 1/28 0.00039 0.00068 0.000770 0.00148 0.00108 0.00118Methylene Chloride 10 50 100 1/28 0.00086 0.00086 0.00250 0.00236 0.00231 0.000414Toluene 50 40 100 5/28 0.00014 0.0088 0.000500 0.00146 0.000962 0.00144Trichloroethene 0.03 5 50 22/28 0.00094 0.0021 0.00150 0.00166 0.00157 0.000542Vinyl Chloride 0.002 50 100 4/28 0.00032 0.0028 0.000500 0.000935 0.000741 0.000933Xylenes (total) 9 5 100 2/28 0.00025 0.0022 0.00100 0.00246 0.00149 0.00213Total VOCs 5 Not Listed Not Listed 23/28 0.00094 0.016 0.00290 0.0205 0.00468 0.0379Semivolatile Organics1,2,4-Trichlorobenzene 2 50 100 6/28 0.0006 0.016 0.00500 0.00457 0.00398 0.002651,3-Dichlorobenzene 2 50 100 1/28 0.0014 0.0014 0.00500 0.00386 0.00364 0.001271,4-Dichlorobenzene 0.2 8 80 4/28 0.00028 0.0032 0.00500 0.00379 0.00336 0.00142bis(2-Ethylhexyl)phthalate Not Listed 50 100 1/28 0.01 0.01 0.00300 0.00327 0.00299 0.00163Di-n-Butylphthalate Not Listed Not Listed Not Listed 1/28 0.0025 0.0025 0.00500 0.00390 0.00371 0.00121Naphthalene 1 20 100 1/28 0.00023 0.00023 0.00500 0.00377 0.00330 0.00145Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-4 Page 1 of 3 7/25/2014

Page 172: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-8Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-4

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 7/28 1.4E-11 9.4E-09 1.20E-09 2.38E-09 1.23E-09 2.51E-09TCDFs (total) Not Listed Not Listed Not Listed 20/28 3.7E-10 7.60E-07 1.65E-08 9.26E-08 1.43E-08 1.70E-071,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 6/28 1E-11 2.5E-08 2.35E-09 4.40E-09 1.87E-09 5.83E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 6/28 2.2E-09 8.3E-09 2.35E-09 2.59E-09 1.55E-09 2.11E-09PeCDFs (total) Not Listed Not Listed Not Listed 21/28 3E-10 3.60E-07 3.25E-08 6.98E-08 2.51E-08 9.16E-081,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 4/28 3.3E-11 5.7E-09 2.55E-09 3.33E-09 1.77E-09 5.35E-091,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 2/28 1.9E-09 2.7E-09 1.80E-09 2.69E-09 1.12E-09 5.30E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 2/28 2.2E-10 4E-09 2.20E-09 2.38E-09 1.31E-09 2.64E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 3/28 1.2E-09 2.6E-09 1.75E-09 2.77E-09 1.23E-09 5.29E-09HxCDFs (total) Not Listed Not Listed Not Listed 15/28 1.2E-10 5.1E-08 5.80E-09 1.05E-08 5.77E-09 1.21E-081,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 5/28 1.2E-11 6.6E-09 2.40E-09 3.33E-09 1.42E-09 5.54E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 1/28 3.4E-12 3.4E-12 1.55E-09 3.08E-09 1.19E-09 5.58E-09HpCDFs (total) Not Listed Not Listed Not Listed 5/28 2.1E-11 4.8E-09 2.55E-09 3.46E-09 1.61E-09 5.53E-09OCDF Not Listed Not Listed Not Listed 2/28 1.5E-11 1.1E-08 4.40E-09 5.93E-09 2.83E-09 1.01E-08Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 0/28 ND ND 1.10E-09 1.34E-09 7.62E-10 1.20E-09TCDDs (total) Not Listed Not Listed Not Listed 0/28 ND ND 1.10E-09 1.55E-09 8.79E-10 1.58E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 1/28 4.7E-09 4.7E-09 2.45E-09 3.61E-09 1.50E-09 5.75E-09PeCDDs (total) Not Listed Not Listed Not Listed 2/28 4.7E-09 1.2E-08 2.60E-09 4.17E-09 1.97E-09 5.85E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 0/28 ND ND 2.55E-09 3.50E-09 1.46E-09 5.68E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 0/28 ND ND 2.45E-09 3.42E-09 1.38E-09 5.74E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 0/28 ND ND 2.60E-09 3.50E-09 1.47E-09 5.69E-09HxCDDs (total) Not Listed Not Listed Not Listed 2/28 4E-09 9E-09 2.60E-09 3.00E-09 1.83E-09 2.55E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 2/28 4.8E-12 2.9E-09 2.40E-09 3.64E-09 1.70E-09 5.67E-09HpCDDs (total) Not Listed Not Listed Not Listed 2/28 8E-12 2.9E-09 2.60E-09 3.99E-09 1.89E-09 5.79E-09OCDD Not Listed Not Listed Not Listed 7/28 2.8E-11 3.1E-08 5.75E-09 7.91E-09 4.54E-09 6.89E-09Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 28/28 1E-11 5.7E-08 7.30E-09 8.91E-09 4.96E-09 1.07E-08InorganicsBarium Not Listed 50 100 6/7 0.027 0.08 0.0450 0.0536 0.0480 0.0276Copper Not Listed Not Listed Not Listed 2/7 0.005 0.0054 0.0125 0.0110 0.0101 0.00422Cyanide Not Listed 0.03 2 1/7 0.0029 0.0029 0.00500 0.00541 0.00511 0.00217Lead Not Listed 0.01 0.15 1/7 0.0023 0.0023 0.00230 0.0110 0.00316 0.0238Nickel Not Listed 0.2 2 2/7 0.002 0.0029 0.0200 0.0164 0.0116 0.0102Silver Not Listed 0.007 1 1/7 0.0011 0.0011 0.00250 0.00287 0.00255 0.00168Sulfide Not Listed Not Listed Not Listed 3/28 1 4 1.00 1.53 1.19 1.03Zinc Not Listed 0.9 50 5/7 0.013 0.3 0.0270 0.0663 0.0319 0.105

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-4 Page 2 of 3 7/25/2014

Page 173: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-8Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-4

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAntimony Not Listed 8 80 3/27 0.008 0.012 0.0200 0.0205 0.0170 0.00821Barium Not Listed 50 100 20/27 0.00875 0.14 0.0317 0.0654 0.0421 0.0726Beryllium Not Listed 0.2 2 5/27 0.00053 0.0162 0.00200 0.00334 0.00177 0.00367Cadmium Not Listed 0.004 0.05 3/27 0.00006 0.00276 0.00250 0.00203 0.00139 0.00125Calcium Not Listed Not Listed Not Listed 1/1 122 122 122 122 122 NAChromium Not Listed 0.3 3 2/27 0.0006 0.0015 0.00500 0.00484 0.00431 0.00199Cobalt Not Listed Not Listed Not Listed 3/27 0.000025 0.05 0.00500 0.0146 0.00859 0.0123Copper Not Listed Not Listed Not Listed 5/27 0.0013 0.004 0.00500 0.0220 0.00845 0.0344Cyanide Not Listed 0.03 2 1/7 0.0016 0.0018 0.00500 0.00453 0.00429 0.00125Cyanide-MADEP (PAC) Not Listed 0.03 2 1/17 0.0013 0.0013 0.00500 0.00431 0.00410 0.00116Lead Not Listed 0.01 0.15 1/27 0.00425 0.00425 0.00425 0.00340 0.00288 0.00169Magnesium Not Listed Not Listed Not Listed 1/1 23.3 23.3 23.3 23.3 23.3 NANickel Not Listed 0.2 2 6/27 0.00028 0.00585 0.0200 0.0132 0.00879 0.00928Potassium Not Listed Not Listed Not Listed 1/1 2.83 2.83 2.83 2.83 2.83 NASelenium Not Listed 0.1 1 4/27 0.00321 0.0065 0.00482 0.00591 0.00481 0.00359Sodium Not Listed Not Listed Not Listed 1/1 49.5 49.5 49.5 49.5 49.5 NAThallium Not Listed 3 30 4/27 0.00666 0.00936 0.00500 0.00518 0.00478 0.00161Tin Not Listed Not Listed Not Listed 2/26 0.0174 0.0332 0.0150 0.0281 0.0218 0.0184Vanadium Not Listed 4 40 2/27 0.0022 0.0024 0.0250 0.0217 0.0180 0.00801Zinc Not Listed 0.9 50 26/27 0.00229 0.29 0.0206 0.0505 0.0260 0.0664

Notes:

1. Samples were collected by ARCADIS between 1999 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-4 Page 3 of 3 7/25/2014

Page 174: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-9Summary of Historical Groundwater Analytical Results - Well OPCA-MW-5/OPCA-MW-5R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1254 Not Listed Not Listed Not Listed 4/7 0.000033 0.0002 0.0000330 0.0000594 0.0000447 0.0000628Aroclor-1260 Not Listed Not Listed Not Listed 3/7 0.000036 0.00027 0.0000330 0.0000801 0.0000530 0.0000914Total PCBs 0.005 0.01 0.1 5/7 0.000033 0.00033 0.0000580 0.000117 0.0000721 0.000127PCBs-FilteredAroclor-1254 Not Listed Not Listed Not Listed 8/27 0.000015 0.00026 0.0000370 0.0000602 0.0000482 0.0000515Aroclor-1260 Not Listed Not Listed Not Listed 5/27 0.000011 0.00024 0.0000340 0.0000541 0.0000425 0.0000507Total PCBs 0.005 0.01 0.1 10/27 0.000026 0.00026 0.0000370 0.0000750 0.0000556 0.0000705Volatile OrganicsAcetone 50 50 100 1/28 0.0024 0.0024 0.00500 0.00707 0.00492 0.00934Benzene 2 10 100 6/28 0.00012 0.00042 0.000500 0.00128 0.000787 0.00108Chlorobenzene 0.2 1 10 15/28 0.00011 0.012 0.00215 0.00217 0.00136 0.00237Methylene Chloride 10 50 100 1/28 0.00022 0.00022 0.00250 0.00231 0.00215 0.000568Toluene 50 40 100 6/28 0.00011 0.0015 0.000500 0.00124 0.000842 0.000989Vinyl Chloride 0.002 50 100 8/28 0.00029 0.0071 0.000985 0.00112 0.000807 0.00145Total VOCs 5 Not Listed Not Listed 17/28 0.00011 0.015 0.00560 0.0316 0.00719 0.0421Semivolatile Organics1,4-Dichlorobenzene 0.2 8 80 3/28 0.00055 0.0018 0.00500 0.00375 0.00335 0.001462,4-Dimethylphenol 40 50 100 1/26 0.0038 0.0038 0.00500 0.00397 0.00380 0.00116Acenaphthene Not Listed 6 60 1/28 0.011 0.011 0.00500 0.00402 0.00360 0.00192bis(2-Ethylhexyl)phthalate Not Listed 50 100 1/28 0.0012 0.0012 0.00300 0.00303 0.00287 0.000955Dibenzofuran Not Listed Not Listed Not Listed 1/28 0.0038 0.0038 0.00440 0.00376 0.00346 0.00135Diethylphthalate 50 9 100 2/28 0.0011 0.0091 0.00500 0.00410 0.00379 0.00159Di-n-Butylphthalate Not Listed Not Listed Not Listed 1/28 0.0028 0.0028 0.00500 0.00393 0.00374 0.00118Naphthalene 1 20 100 2/28 0.0083 0.062 0.00500 0.00596 0.00390 0.0111Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-5 Page 1 of 3 7/25/2014

Page 175: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-9Summary of Historical Groundwater Analytical Results - Well OPCA-MW-5/OPCA-MW-5R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 9/28 1.7E-09 3.2E-08 1.50E-09 3.76E-09 1.31E-09 6.29E-09TCDFs (total) Not Listed Not Listed Not Listed 16/28 1.2E-09 6.9E-07 3.40E-09 6.86E-08 4.52E-09 1.64E-071,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 4/28 3.6E-09 1.9E-08 1.75E-09 2.89E-09 1.23E-09 4.35E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 7/28 9.2E-10 6.5E-08 2.30E-09 6.08E-09 1.23E-09 1.33E-08PeCDFs (total) Not Listed Not Listed Not Listed 13/28 1.7E-09 9.00E-07 2.60E-09 8.48E-08 3.48E-09 2.13E-071,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 6/28 2.3E-09 5.9E-08 2.40E-09 7.35E-09 1.44E-09 1.49E-081,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 5/28 2.3E-10 4.7E-08 2.05E-09 5.52E-09 1.13E-09 1.10E-081,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 1/28 3.7E-09 3.7E-09 1.75E-09 3.02E-09 8.76E-10 5.51E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 5/28 8.5E-10 4.5E-08 2.20E-09 5.01E-09 1.38E-09 9.81E-09HxCDFs (total) Not Listed Not Listed Not Listed 12/28 8.7E-10 6.00E-07 2.60E-09 5.96E-08 3.21E-09 1.43E-071,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 5/28 3.3E-09 2.2E-07 2.20E-09 1.25E-08 1.60E-09 4.23E-081,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 3/28 1.3E-09 2.8E-08 2.25E-09 3.89E-09 1.25E-09 7.04E-09HpCDFs (total) Not Listed Not Listed Not Listed 5/28 2E-11 4.3E-07 2.55E-09 2.26E-08 1.59E-09 8.35E-08OCDF Not Listed Not Listed Not Listed 5/28 4.1E-09 1.5E-07 4.95E-09 1.31E-08 3.21E-09 3.05E-08Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 1/28 6.7E-09 6.7E-09 6.50E-10 1.19E-09 6.37E-10 1.52E-09TCDDs (total) Not Listed Not Listed Not Listed 4/28 1.6E-09 4.1E-08 9.00E-10 3.12E-09 9.38E-10 7.88E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 2/28 7.4E-10 2.5E-09 1.90E-09 2.83E-09 1.03E-09 4.98E-09PeCDDs (total) Not Listed Not Listed Not Listed 3/28 3.3E-09 3.5E-07 2.55E-09 1.72E-08 1.53E-09 6.61E-081,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 2/28 2.6E-09 8E-09 2.25E-09 2.88E-09 1.25E-09 5.01E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 1/28 4.5E-09 4.5E-09 1.95E-09 2.96E-09 1.24E-09 5.09E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 3/28 1.1E-09 1.2E-08 2.10E-09 3.14E-09 1.37E-09 5.21E-09HxCDDs (total) Not Listed Not Listed Not Listed 5/28 3.1E-09 1.7E-07 2.60E-09 1.19E-08 2.23E-09 3.42E-081,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 5/28 2E-09 1.3E-07 2.55E-09 1.03E-08 2.20E-09 2.64E-08HpCDDs (total) Not Listed Not Listed Not Listed 6/28 2E-09 2.7E-07 2.60E-09 1.86E-08 2.48E-09 5.51E-08OCDD Not Listed Not Listed Not Listed 8/28 1.1E-08 1.20E-06 8.00E-09 8.20E-08 7.62E-09 2.71E-07Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 28/28 3.5E-12 7E-08 6.75E-09 1.08E-08 4.55E-09 1.68E-08InorganicsArsenic Not Listed 0.9 9 1/7 0.0079 0.0079 0.00500 0.00513 0.00496 0.00143Barium Not Listed 50 100 6/7 0.023 0.078 0.0520 0.0561 0.0504 0.0267Cadmium Not Listed 0.004 0.05 1/7 0.0008 0.0008 0.00250 0.00233 0.00218 0.000699Chromium Not Listed 0.3 3 2/7 0.0043 0.014 0.00500 0.00640 0.00589 0.00342Cobalt Not Listed Not Listed Not Listed 2/7 0.0045 0.0062 0.0250 0.0201 0.0165 0.0103Copper Not Listed Not Listed Not Listed 3/7 0.0056 0.011 0.0125 0.0112 0.0107 0.00353Cyanide Not Listed 0.03 2 3/7 0.0022 0.051 0.00500 0.0125 0.00748 0.0172Lead Not Listed 0.01 0.15 4/7 0.003 0.034 0.00420 0.0164 0.00642 0.0244Mercury Not Listed 0.02 0.2 1/7 0.00005 0.00005 0.000100 0.000114 0.000103 0.0000627Nickel Not Listed 0.2 2 1/7 0.0074 0.0074 0.0200 0.0196 0.0184 0.00655Sulfide Not Listed Not Listed Not Listed 3/28 1 8 1.00 1.75 1.24 1.60Vanadium Not Listed 4 40 2/7 0.0015 0.0066 0.0250 0.0197 0.0142 0.0110Zinc Not Listed 0.9 50 5/7 0.011 0.05 0.0150 0.0259 0.0217 0.0167

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-5 Page 2 of 3 7/25/2014

Page 176: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-9Summary of Historical Groundwater Analytical Results - Well OPCA-MW-5/OPCA-MW-5R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAntimony Not Listed 8 80 3/27 0.0046 0.014 0.0200 0.0203 0.0165 0.00855Arsenic Not Listed 0.9 9 1/27 0.0014 0.0014 0.00500 0.00642 0.00502 0.00875Barium Not Listed 50 100 22/27 0.015 0.099 0.0536 0.0616 0.0520 0.0441Beryllium Not Listed 0.2 2 5/27 0.00033 0.0122 0.00200 0.0120 0.00184 0.0477Cadmium Not Listed 0.004 0.05 6/27 0.00005 0.00176 0.00200 0.00197 0.00151 0.00118Calcium Not Listed Not Listed Not Listed 1/1 73 73 73.0 73.0 73.0 NAChromium Not Listed 0.3 3 2/27 0.00069 0.00134 0.00500 0.00483 0.00431 0.00200Cobalt Not Listed Not Listed Not Listed 5/27 0.00009 0.0068 0.00500 0.0114 0.00709 0.00987Copper Not Listed Not Listed Not Listed 9/27 0.0014 0.019 0.00500 0.0176 0.00784 0.0300Cyanide Not Listed 0.03 2 1/7 0.0023 0.0023 0.00500 0.00461 0.00447 0.00102Cyanide-MADEP (PAC) Not Listed 0.03 2 1/17 0.0017 0.0017 0.00500 0.00434 0.00416 0.00110Dissolved Iron Not Listed Not Listed Not Listed 0/1 ND ND 0.0250 0.0250 0.0250 NALead Not Listed 0.01 0.15 3/27 0.0006 0.00657 0.00445 0.00347 0.00294 0.00177Magnesium Not Listed Not Listed Not Listed 1/1 23 23 23.0 23.0 23.0 NAManganese Not Listed Not Listed Not Listed 1/1 0.0015 0.0015 0.00150 0.00150 0.00150 NAMercury Not Listed 0.02 0.2 1/27 0.0000356 0.0000356 0.000100 0.000119 0.000109 0.0000550Nickel Not Listed 0.2 2 7/27 0.00083 0.00498 0.00500 0.0119 0.00798 0.00915Potassium Not Listed Not Listed Not Listed 1/1 1.99 1.99 1.99 1.99 1.99 NASelenium Not Listed 0.1 1 2/27 0.00324 0.00331 0.00331 0.00595 0.00475 0.00374Sodium Not Listed Not Listed Not Listed 1/1 88.9 88.9 88.9 88.9 88.9 NAThallium Not Listed 3 30 2/27 0.00566 0.00828 0.00500 0.00489 0.00458 0.00120Tin Not Listed Not Listed Not Listed 2/26 0.00102 0.00241 0.0150 0.0263 0.0176 0.0196Vanadium Not Listed 4 40 2/27 0.0014 0.00627 0.0250 0.0218 0.0184 0.00775Zinc Not Listed 0.9 50 19/27 0.0036 0.263 0.0106 0.0285 0.0158 0.0510

Notes:

1. Samples were collected by ARCADIS between 1999 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-5 Page 3 of 3 7/25/2014

Page 177: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-10Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-6

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1254 Not Listed Not Listed Not Listed 4/6 0.000091 0.00012 0.0000955 0.0000828 0.0000723 0.0000402Aroclor-1260 Not Listed Not Listed Not Listed 2/6 0.00003 0.000086 0.0000330 0.0000400 0.0000364 0.0000228Total PCBs 0.005 0.01 0.1 4/6 0.000091 0.00021 0.000106 0.000103 0.0000829 0.0000669PCBs-FilteredAroclor-1254 Not Listed Not Listed Not Listed 9/26 0.000013 0.00037 0.0000345 0.0000690 0.0000507 0.0000734Aroclor-1260 Not Listed Not Listed Not Listed 3/26 0.000026 0.00014 0.0000330 0.0000477 0.0000412 0.0000348Total PCBs 0.005 0.01 0.1 9/26 0.000013 0.00051 0.0000345 0.0000778 0.0000533 0.0000986Volatile OrganicsAcetone 50 50 100 3/27 0.0015 0.053 0.00500 0.00928 0.00578 0.0127Toluene 50 40 100 2/27 0.00027 0.0016 0.000500 0.00127 0.000926 0.000983Total VOCs 5 Not Listed Not Listed 5/27 0.00027 0.053 0.0500 0.0571 0.0341 0.0355Semivolatile Organicsbis(2-Ethylhexyl)phthalate Not Listed 50 100 2/27 0.0022 0.011 0.00300 0.00334 0.00306 0.00178Diethylphthalate 50 9 100 1/27 0.0008 0.0008 0.00500 0.00382 0.00360 0.00126Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 7/27 5.7E-10 5.8E-09 1.10E-09 1.81E-09 1.23E-09 1.67E-09TCDFs (total) Not Listed Not Listed Not Listed 12/27 5.7E-10 1.00E-07 1.30E-09 7.32E-09 2.21E-09 1.90E-081,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 2/27 3.2E-10 2.4E-09 1.30E-09 2.88E-09 1.43E-09 5.38E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 0/27 ND ND 1.30E-09 2.79E-09 1.19E-09 5.42E-09PeCDFs (total) Not Listed Not Listed Not Listed 8/27 3.2E-10 1.60E-07 2.50E-09 9.54E-09 2.38E-09 3.06E-081,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 0/27 ND ND 1.30E-09 3.16E-09 1.40E-09 5.47E-091,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 1/27 1.3E-09 1.3E-09 1.30E-09 3.10E-09 1.27E-09 5.46E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 1/27 2.4E-10 2.4E-10 1.40E-09 3.29E-09 1.50E-09 5.50E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 0/27 ND ND 1.30E-09 3.17E-09 1.33E-09 5.47E-09HxCDFs (total) Not Listed Not Listed Not Listed 4/27 6.7E-10 1.8E-09 2.50E-09 3.77E-09 1.91E-09 5.77E-091,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 1/27 5.2E-09 5.2E-09 1.30E-09 3.34E-09 1.44E-09 5.63E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 0/27 ND ND 1.30E-09 3.40E-09 1.53E-09 5.64E-09HpCDFs (total) Not Listed Not Listed Not Listed 2/27 4E-10 5.2E-09 1.30E-09 3.46E-09 1.65E-09 5.61E-09OCDF Not Listed Not Listed Not Listed 1/27 1.30E-08 1.30E-08 2.50E-09 6.83E-09 3.41E-09 1.11E-08

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-6 Page 1 of 3 7/25/2014

Page 178: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-10Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-6

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 1/27 4.9E-10 4.9E-10 9.00E-10 1.27E-09 9.23E-10 1.23E-09TCDDs (total) Not Listed Not Listed Not Listed 2/27 4.9E-10 1.6E-09 1.00E-09 1.57E-09 1.11E-09 1.74E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 0/27 ND ND 1.40E-09 3.14E-09 1.57E-09 5.40E-09PeCDDs (total) Not Listed Not Listed Not Listed 1/27 3.2E-09 3.2E-09 2.10E-09 3.38E-09 2.01E-09 5.31E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 0/27 ND ND 2.30E-09 3.35E-09 1.62E-09 5.43E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 1/27 3.5E-10 3.5E-10 2.00E-09 3.33E-09 1.60E-09 5.47E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 0/27 ND ND 2.20E-09 3.33E-09 1.60E-09 5.44E-09HxCDDs (total) Not Listed Not Listed Not Listed 1/27 2.9E-09 2.9E-09 2.30E-09 3.72E-09 2.06E-09 5.56E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 0/27 ND ND 1.80E-09 3.80E-09 1.87E-09 5.74E-09HpCDDs (total) Not Listed Not Listed Not Listed 1/27 3.9E-10 3.9E-10 1.80E-09 4.12E-09 2.02E-09 6.04E-09OCDD Not Listed Not Listed Not Listed 5/27 5.00E-09 1.60E-08 4.40E-09 7.78E-09 4.26E-09 1.07E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 27/27 5.5E-10 6.80E-08 4.20E-09 8.46E-09 4.77E-09 1.33E-08InorganicsAntimony Not Listed 8 80 1/6 0.0084 0.0084 0.0300 0.0264 0.0243 0.00882Barium Not Listed 50 100 4/6 0.017 0.053 0.0415 0.0530 0.0412 0.0386Copper Not Listed Not Listed Not Listed 2/6 0.004 0.005 0.0125 0.0105 0.00929 0.00491Cyanide Not Listed 0.03 2 1/6 0.0042 0.0042 0.00500 0.00570 0.00545 0.00213Lead Not Listed 0.01 0.15 1/6 0.0022 0.0022 0.00185 0.0124 0.00326 0.0258Selenium Not Listed 0.1 1 1/6 0.0057 0.0057 0.00250 0.00312 0.00296 0.00128Sulfide Not Listed Not Listed Not Listed 2/27 1.4 4.8 1.00 1.49 1.12 1.13Zinc Not Listed 0.9 50 4/6 0.0057 0.021 0.0115 0.0132 0.0119 0.00615

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-6 Page 2 of 3 7/25/2014

Page 179: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-10Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-6

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAntimony Not Listed 8 80 3/26 0.00026 0.0077 0.0200 0.0207 0.0166 0.00842Arsenic Not Listed 0.9 9 3/26 0.00213 0.0045 0.00500 0.00633 0.00470 0.00897Barium Not Listed 50 100 15/26 0.00343 0.052 0.0323 0.0740 0.0359 0.0911Beryllium Not Listed 0.2 2 3/26 0.00053 0.00366 0.00149 0.00260 0.00155 0.00219Cadmium Not Listed 0.004 0.05 2/26 0.00024 0.00328 0.00250 0.00207 0.00160 0.00122Calcium Not Listed Not Listed Not Listed 1/1 44.8 44.8 44.8 44.8 44.8 NAChromium Not Listed 0.3 3 5/26 0.0008 0.00179 0.00500 0.00459 0.00402 0.00217Cobalt Not Listed Not Listed Not Listed 1/26 0.000026 0.000026 0.00500 0.0133 0.00807 0.0103Copper Not Listed Not Listed Not Listed 5/26 0.0013 0.00617 0.0125 0.0254 0.0116 0.0346Cyanide Not Listed 0.03 2 5/8 0.0016 0.0037 0.00295 0.00328 0.00294 0.00157Dissolved Iron Not Listed Not Listed Not Listed 0/1 ND ND 0.0250 0.0250 0.0250 NALead Not Listed 0.01 0.15 1/26 0.00641 0.00718 0.00500 0.00353 0.00295 0.00183Magnesium Not Listed Not Listed Not Listed 1/1 12.1 12.1 12.1 12.1 12.1 NAManganese Not Listed Not Listed Not Listed 1/1 0.0035 0.0035 0.00350 0.00350 0.00350 NAMercury Not Listed 0.02 0.2 1/26 0.00021 0.00021 0.000100 0.000131 0.000119 0.0000647Nickel Not Listed 0.2 2 1/26 0.00039 0.00039 0.0200 0.0158 0.0118 0.00865Potassium Not Listed Not Listed Not Listed 1/1 1.01 1.01 1.01 1.01 1.01 NASelenium Not Listed 0.1 1 1/26 0.0059 0.0059 0.0100 0.00669 0.00526 0.00376Sodium Not Listed Not Listed Not Listed 1/1 127 127 127 127 127 NAThallium Not Listed 3 30 1/26 0.00656 0.00656 0.00500 0.00479 0.00450 0.00105Tin Not Listed Not Listed Not Listed 2/25 0.00108 0.00939 0.0150 0.0288 0.0206 0.0195Zinc Not Listed 0.9 50 11/26 0.00277 0.0325 0.0100 0.0123 0.0107 0.00672

Notes:

1. Samples were collected by ARCADIS between 1999 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-6 Page 3 of 3 7/25/2014

Page 180: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-11Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-7

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1254 Not Listed Not Listed Not Listed 1/5 0.000085 0.000085 0.0000330 0.0000420 0.0000380 0.0000242Total PCBs 0.005 0.01 0.1 1/5 0.000085 0.000085 0.0000330 0.0000420 0.0000380 0.0000242PCBs-FilteredAroclor-1254 Not Listed Not Listed Not Listed 7/25 0.000034 0.0012 0.0000380 0.000127 0.0000634 0.000242Aroclor-1260 Not Listed Not Listed Not Listed 3/25 0.000031 0.00091 0.0000340 0.0000805 0.0000462 0.000176Total PCBs 0.005 0.01 0.1 7/25 0.000065 0.0021 0.0000440 0.000166 0.0000672 0.000414Volatile OrganicsAcetone 50 50 100 2/28 0.0055 0.007 0.00500 0.00743 0.00517 0.00957Benzene 2 10 100 1/28 0.00052 0.00052 0.000500 0.00127 0.000897 0.00101Bromodichloromethane 0.006 50 100 1/28 0.00034 0.00034 0.000500 0.00128 0.000928 0.00100Chloroform 0.05 20 100 1/28 0.00081 0.00081 0.000500 0.00130 0.000957 0.000987Dibromochloromethane 0.02 50 100 1/28 0.00014 0.00014 0.000500 0.00127 0.000899 0.00101Dibromomethane Not Listed Not Listed Not Listed 1/28 0.0026 0.0026 0.000500 0.00143 0.00106 0.00102Toluene 50 40 100 4/28 0.00022 0.00094 0.000500 0.00129 0.000921 0.00100Trichloroethene 0.03 5 50 1/28 0.0011 0.0011 0.000500 0.00131 0.000968 0.000984Xylenes (total) 9 5 100 1/28 0.0021 0.0021 0.00100 0.00231 0.00140 0.00210Total VOCs 5 Not Listed Not Listed 7/28 0.00014 0.011 0.0500 0.0535 0.0228 0.0398Semivolatile OrganicsDiethylphthalate 50 9 100 1/27 0.0047 0.0047 0.00500 0.00402 0.00385 0.00115Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/1 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/1 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/1 - - - - - - - - - - - -

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-7 Page 1 of 3 7/25/2014

Page 181: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-11Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-7

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 2/27 2.9E-09 2.9E-08 8.00E-10 2.35E-09 7.79E-10 5.49E-09TCDFs (total) Not Listed Not Listed Not Listed 6/27 1.9E-12 2.80E-07 1.40E-09 1.80E-08 1.62E-09 5.74E-081,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 5/27 1E-09 1.4E-08 1.50E-09 3.20E-09 1.10E-09 5.72E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 4/27 7.1E-10 3.1E-08 1.30E-09 4.55E-09 1.23E-09 8.79E-09PeCDFs (total) Not Listed Not Listed Not Listed 12/27 4.3E-12 3.60E-07 2.60E-09 2.76E-08 3.23E-09 7.54E-081,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 7/27 5.4E-10 1.30E-07 1.90E-09 1.12E-08 1.88E-09 2.72E-081,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 7/27 8.6E-10 5.2E-08 2.50E-09 6.96E-09 1.62E-09 1.24E-081,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 2/27 1.8E-09 2.3E-08 2.10E-09 3.83E-09 1.23E-09 6.54E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 4/27 8.2E-10 2.7E-08 1.80E-09 4.79E-09 1.31E-09 8.37E-09HxCDFs (total) Not Listed Not Listed Not Listed 12/27 1.3E-12 4.20E-07 2.70E-09 3.66E-08 3.44E-09 9.89E-081,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 8/27 1.4E-09 9.1E-08 2.60E-09 1.01E-08 2.01E-09 2.26E-081,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 2/27 2.2E-08 5.8E-08 2.50E-09 5.96E-09 1.56E-09 1.23E-08HpCDFs (total) Not Listed Not Listed Not Listed 10/27 9E-10 2.70E-07 2.70E-09 2.21E-08 2.78E-09 5.94E-08OCDF Not Listed Not Listed Not Listed 6/27 2E-09 1.40E-07 5.00E-09 1.45E-08 3.63E-09 2.99E-08Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 2/27 7.4E-10 7.9E-09 9.50E-10 1.49E-09 7.16E-10 1.75E-09TCDDs (total) Not Listed Not Listed Not Listed 4/27 1.7E-09 1.4E-08 1.10E-09 2.29E-09 9.68E-10 3.12E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 1/27 3.4E-10 3.4E-10 2.20E-09 2.91E-09 1.19E-09 5.21E-09PeCDDs (total) Not Listed Not Listed Not Listed 3/27 3.9E-09 1.2E-08 2.60E-09 4.13E-09 1.74E-09 5.93E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 1/27 3.6E-10 3.6E-10 2.50E-09 2.99E-09 1.27E-09 5.20E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 3/27 2.4E-10 1.4E-08 2.40E-09 3.47E-09 1.31E-09 5.67E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 2/27 2E-09 1.3E-08 2.50E-09 3.36E-09 1.31E-09 5.55E-09HxCDDs (total) Not Listed Not Listed Not Listed 6/27 6.1E-12 7.6E-08 2.60E-09 8.61E-09 2.20E-09 1.77E-081,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 5/27 6.2E-12 5.2E-08 2.70E-09 6.94E-09 2.27E-09 1.26E-08HpCDDs (total) Not Listed Not Listed Not Listed 7/27 6.2E-12 9.5E-08 2.70E-09 1.04E-08 2.67E-09 2.30E-08OCDD Not Listed Not Listed Not Listed 9/27 2E-11 3.90E-07 7.00E-09 3.55E-08 7.17E-09 8.75E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 27/27 2E-12 6.8E-08 5.50E-09 1.08E-08 4.33E-09 1.61E-08InorganicsBarium Not Listed 50 100 4/5 0.012 0.06 0.0270 0.0430 0.0315 0.0370Chromium Not Listed 0.3 3 1/5 0.0029 0.0029 0.00500 0.00488 0.00473 0.00128Copper Not Listed Not Listed Not Listed 2/5 0.0035 0.0079 0.0125 0.0106 0.00935 0.00499Selenium Not Listed 0.1 1 1/5 0.0054 0.0054 0.00250 0.00318 0.00302 0.00126Sulfide Not Listed Not Listed Not Listed 4/27 1 6.4 1.00 1.69 1.20 1.52Zinc Not Listed 0.9 50 3/5 0.02 0.027 0.0200 0.0186 0.0174 0.00702

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-7 Page 2 of 3 7/25/2014

Page 182: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-11Summary Of Historical Groundwater Analytical Results - Well OPCA-MW-7

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAntimony Not Listed 8 80 1/25 0.0096 0.0096 0.0200 0.0213 0.0177 0.00799Arsenic Not Listed 0.9 9 1/25 0.0016 0.0016 0.00500 0.00654 0.00505 0.00910Barium Not Listed 50 100 15/25 0.00848 0.0869 0.0368 0.0694 0.0384 0.0838Beryllium Not Listed 0.2 2 3/25 0.00043 0.00872 0.00500 0.00317 0.00193 0.00245Cadmium Not Listed 0.004 0.05 6/25 0.00015 0.00208 0.00250 0.00208 0.00164 0.00120Calcium Not Listed Not Listed Not Listed 1/1 167 167 167 167 167 NAChromium Not Listed 0.3 3 8/25 0.00072 0.0017 0.00500 0.00395 0.00311 0.00255Cobalt Not Listed Not Listed Not Listed 3/25 0.00022 0.00463 0.00500 0.0118 0.00744 0.0101Copper Not Listed Not Listed Not Listed 1/25 0.0073 0.0073 0.0125 0.0281 0.0127 0.0378Cyanide Not Listed 0.03 2 1/6 0.0014 0.0014 0.00500 0.00440 0.00404 0.00147Lead Not Listed 0.01 0.15 1/25 0.00583 0.00583 0.00500 0.00360 0.00303 0.00179Magnesium Not Listed Not Listed Not Listed 1/1 77.8 77.8 77.8 77.8 77.8 NAManganese Not Listed Not Listed Not Listed 1/1 0.0154 0.0154 0.0154 0.0154 0.0154 NAMercury Not Listed 0.02 0.2 1/25 0.0000227 0.0000227 0.000100 0.000120 0.000108 0.0000578Nickel Not Listed 0.2 2 3/25 0.00095 0.00335 0.0200 0.0141 0.0103 0.00909Potassium Not Listed Not Listed Not Listed 1/1 1.25 1.25 1.25 1.25 1.25 NASelenium Not Listed 0.1 1 5/25 0.00072 0.00889 0.00856 0.00651 0.00523 0.00362Sodium Not Listed Not Listed Not Listed 1/1 73.9 73.9 73.9 73.9 73.9 NAThallium Not Listed 3 30 2/25 0.0101 0.0148 0.00500 0.00532 0.00476 0.00247Tin Not Listed Not Listed Not Listed 1/24 0.00611 0.00611 0.0325 0.0309 0.0230 0.0198Vanadium Not Listed 4 40 3/25 0.0026 0.00657 0.0250 0.0209 0.0174 0.00842Zinc Not Listed 0.9 50 14/25 0.007 0.279 0.0178 0.0290 0.0181 0.0531

Notes:

1. Samples were collected by ARCADIS between 1999 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-7 Page 3 of 3 7/25/2014

Page 183: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-12Summary of Historical Groundwater Analytical Results - Well OPCA-MW-8/OPCA-MW-8R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

PCBsAroclor-1254 Not Listed Not Listed Not Listed 4/7 0.000095 0.00068 0.0000950 0.000176 0.0000998 0.000231Aroclor-1260 Not Listed Not Listed Not Listed 2/7 0.00011 0.00024 0.0000330 0.0000760 0.0000552 0.0000776Total PCBs 0.005 0.01 0.1 4/7 0.000095 0.00092 0.0000950 0.000226 0.000111 0.000321PCBs-FilteredAroclor-1254 Not Listed Not Listed Not Listed 5/25 0.000041 0.00033 0.0000350 0.0000674 0.0000512 0.0000687Aroclor-1260 Not Listed Not Listed Not Listed 2/25 0.000025 0.000029 0.0000330 0.0000438 0.0000389 0.0000299Total PCBs 0.005 0.01 0.1 5/25 0.000055 0.00036 0.0000350 0.0000696 0.0000523 0.0000734Volatile OrganicsAcetone 50 50 100 3/27 0.0023 0.026 0.00500 0.00782 0.00524 0.0101Chloroform 0.05 20 100 1/27 0.00016 0.00016 0.000500 0.00138 0.000980 0.00103Chloromethane Not Listed Not Listed Not Listed 1/27 0.00067 0.00067 0.000670 0.00145 0.00105 0.00118Toluene 50 40 100 5/27 0.00012 0.011 0.000500 0.00176 0.00108 0.00211Trichloroethene 0.03 5 50 1/27 0.0011 0.0011 0.000500 0.00141 0.00105 0.000999Total VOCs 5 Not Listed Not Listed 9/27 0.00028 0.026 0.0500 0.0474 0.0201 0.0395Semivolatile Organicsbis(2-Ethylhexyl)phthalate Not Listed 50 100 3/27 0.00087 0.0017 0.00300 0.00278 0.00256 0.00106Organochlorine PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Organophosphate PesticidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -HerbicidesNone Detected Not Listed Not Listed Not Listed 0/2 - - - - - - - - - - - -Furans2,3,7,8-TCDF Not Listed Not Listed Not Listed 1/27 1.4E-09 1.4E-09 8.50E-10 1.39E-09 7.35E-10 1.59E-09TCDFs (total) Not Listed Not Listed Not Listed 6/27 1.4E-09 6.1E-07 1.30E-09 2.92E-08 1.61E-09 1.17E-071,2,3,7,8-PeCDF Not Listed Not Listed Not Listed 0/27 ND ND 1.80E-09 3.24E-09 1.24E-09 5.67E-092,3,4,7,8-PeCDF Not Listed Not Listed Not Listed 2/27 5.8E-09 5.8E-09 1.70E-09 3.14E-09 1.23E-09 5.65E-09PeCDFs (total) Not Listed Not Listed Not Listed 5/27 3.7E-10 1.40E-06 2.50E-09 6.37E-08 2.75E-09 2.69E-071,2,3,4,7,8-HxCDF Not Listed Not Listed Not Listed 2/27 2E-08 1.2E-07 2.10E-09 8.26E-09 1.56E-09 2.33E-081,2,3,6,7,8-HxCDF Not Listed Not Listed Not Listed 0/27 ND ND 1.30E-09 3.00E-09 9.70E-10 5.70E-091,2,3,7,8,9-HxCDF Not Listed Not Listed Not Listed 1/27 1.8E-09 1.8E-09 1.50E-09 3.12E-09 1.03E-09 5.70E-092,3,4,6,7,8-HxCDF Not Listed Not Listed Not Listed 0/27 ND ND 1.30E-09 3.04E-09 9.94E-10 5.70E-09HxCDFs (total) Not Listed Not Listed Not Listed 5/27 5.6E-10 6.2E-07 2.50E-09 3.05E-08 2.35E-09 1.19E-071,2,3,4,6,7,8-HpCDF Not Listed Not Listed Not Listed 2/27 5.2E-12 7.6E-10 1.40E-09 2.83E-09 1.03E-09 5.49E-091,2,3,4,7,8,9-HpCDF Not Listed Not Listed Not Listed 1/27 4E-09 4E-09 2.00E-09 3.41E-09 1.14E-09 5.85E-09HpCDFs (total) Not Listed Not Listed Not Listed 3/27 2.4E-10 1.2E-08 2.50E-09 4.14E-09 1.48E-09 6.22E-09OCDF Not Listed Not Listed Not Listed 2/27 1.8E-08 1.8E-08 4.90E-09 7.14E-09 2.63E-09 1.14E-08

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-8 Page 1 of 3 7/25/2014

Page 184: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-12Summary of Historical Groundwater Analytical Results - Well OPCA-MW-8/OPCA-MW-8R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Doixins2,3,7,8-TCDD Not Listed Not Listed Not Listed 0/27 ND ND 7.00E-10 1.21E-09 6.76E-10 1.19E-09TCDDs (total) Not Listed Not Listed Not Listed 1/27 1.1E-09 1.1E-09 1.10E-09 1.46E-09 8.48E-10 1.49E-091,2,3,7,8-PeCDD Not Listed Not Listed Not Listed 0/27 ND ND 2.20E-09 3.48E-09 1.51E-09 5.61E-09PeCDDs (total) Not Listed Not Listed Not Listed 3/27 7.5E-10 4E-09 2.40E-09 3.73E-09 2.03E-09 5.50E-091,2,3,4,7,8-HxCDD Not Listed Not Listed Not Listed 1/27 1.9E-10 1.9E-10 2.10E-09 3.24E-09 1.23E-09 5.67E-091,2,3,6,7,8-HxCDD Not Listed Not Listed Not Listed 1/27 2.2E-10 2.2E-10 1.90E-09 3.21E-09 1.17E-09 5.73E-091,2,3,7,8,9-HxCDD Not Listed Not Listed Not Listed 1/27 1.3E-09 1.3E-09 2.10E-09 3.28E-09 1.27E-09 5.67E-09HxCDDs (total) Not Listed Not Listed Not Listed 4/27 4.1E-10 6.2E-09 2.60E-09 4.04E-09 1.75E-09 5.85E-091,2,3,4,6,7,8-HpCDD Not Listed Not Listed Not Listed 2/27 6.3E-09 1.5E-08 2.60E-09 4.51E-09 1.80E-09 6.37E-09HpCDDs (total) Not Listed Not Listed Not Listed 4/27 1E-10 1.2E-08 2.60E-09 4.76E-09 1.76E-09 6.62E-09OCDD Not Listed Not Listed Not Listed 7/27 7.6E-09 8.6E-08 7.60E-09 1.42E-08 6.24E-09 1.87E-08Total TEQs (1998 WHO TEFs) Not Listed 4.00E-05 4.00E-04 27/27 1E-11 7E-08 6.30E-09 9.43E-09 4.44E-09 1.39E-08InorganicsAntimony Not Listed 8 80 2/7 0.0042 0.011 0.0300 0.0236 0.0196 0.0111Barium Not Listed 50 100 5/7 0.029 0.086 0.0410 0.0608 0.0534 0.0328Chromium Not Listed 0.3 3 4/7 0.0027 0.007 0.00500 0.00507 0.00486 0.00150Cobalt Not Listed Not Listed Not Listed 1/7 0.0012 0.0012 0.0250 0.0223 0.0166 0.00950Copper Not Listed Not Listed Not Listed 1/7 0.0035 0.0035 0.0125 0.0118 0.0108 0.00395Cyanide Not Listed 0.03 2 3/7 0.0024 0.026 0.00500 0.00886 0.00680 0.00797Lead Not Listed 0.01 0.15 2/7 0.003 0.0049 0.00250 0.0114 0.00361 0.0237Mercury Not Listed 0.02 0.2 1/7 0.00022 0.00022 0.000100 0.000139 0.000128 0.0000664Nickel Not Listed 0.2 2 1/7 0.0024 0.0024 0.0200 0.0189 0.0157 0.00818Sulfide Not Listed Not Listed Not Listed 2/27 6.4 8 1.00 1.81 1.23 1.81Vanadium Not Listed 4 40 4/7 0.0019 0.0044 0.00440 0.0130 0.00705 0.0129Zinc Not Listed 0.9 50 6/7 0.011 0.18 0.0420 0.0691 0.0450 0.0621

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-8 Page 2 of 3 7/25/2014

Page 185: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Table E-12Summary of Historical Groundwater Analytical Results - Well OPCA-MW-8/OPCA-MW-8R

Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71On-Plant Consolidation Areas for Spring 2014General Electric Company - Pittsfield, Massachusetts(Results are presented in parts per million, ppm)

Location ID: Method 1 GW-2 Method 1 GW-3 MCP UCL Detection Minimum Maximum Median Arithmetic Geometric StandardDate Collected: Standards Standards for GroundWater Frequency Detect Detect Value Average Mean DeviationSample Name:

Inorganics-filteredAntimony Not Listed 8 80 2/26 0.0065 0.012 0.0200 0.0212 0.0174 0.00843Barium Not Listed 50 100 17/26 0.00521 0.0679 0.0365 0.0533 0.0332 0.0631Beryllium Not Listed 0.2 2 4/26 0.00038 0.0124 0.00250 0.00305 0.00174 0.00286Cadmium Not Listed 0.004 0.05 2/26 0.0001 0.00287 0.00250 0.00210 0.00158 0.00122Calcium Not Listed Not Listed Not Listed 1/1 78.8 78.8 78.8 78.8 78.8 NAChromium Not Listed 0.3 3 12/26 0.00076 0.0054 0.00500 0.00415 0.00356 0.00229Cobalt Not Listed Not Listed Not Listed 2/26 0.00015 0.0023 0.00500 0.0132 0.00838 0.0104Copper Not Listed Not Listed Not Listed 5/26 0.00207 0.0053 0.0104 0.0235 0.0108 0.0345Cyanide Not Listed 0.03 2 3/8 0.0014 0.0058 0.00500 0.00438 0.00404 0.00148Lead Not Listed 0.01 0.15 1/26 0.00427 0.00427 0.00339 0.00334 0.00282 0.00170Magnesium Not Listed Not Listed Not Listed 1/1 43.3 43.3 43.3 43.3 43.3 NAManganese Not Listed Not Listed Not Listed 1/1 0.0029 0.0029 0.00290 0.00290 0.00290 NAMercury Not Listed 0.02 0.2 1/26 0.00024 0.00024 0.000100 0.000125 0.000115 0.0000588Nickel Not Listed 0.2 2 7/26 0.0014 0.00838 0.0102 0.0129 0.00955 0.00867Potassium Not Listed Not Listed Not Listed 1/1 1.07 1.07 1.07 1.07 1.07 NASelenium Not Listed 0.1 1 2/26 0.0021 0.0043 0.00750 0.00640 0.00521 0.00372Sodium Not Listed Not Listed Not Listed 1/1 159 159 159 159 159 NAThallium Not Listed 3 30 6/26 0.00674 0.00992 0.00500 0.00545 0.00497 0.00185Tin Not Listed Not Listed Not Listed 1/25 0.00412 0.00412 0.0150 0.0306 0.0233 0.0193Vanadium Not Listed 4 40 2/26 0.002 0.0047 0.0250 0.0217 0.0181 0.00796Zinc Not Listed 0.9 50 18/26 0.00292 0.298 0.0108 0.0342 0.0163 0.0593

Notes:

1. Samples were collected by ARCADIS between 1999 and 2014 and were submitted to SGS Environmental Services, Inc. and Accutest Laboratories for analysis of PCBs and Appendix IX+3 constituents.

2. Samples have been validated as per GE's EPA-approved FSP/QAPP, General Electric Company, Pittsfield, Massachusetts.3. Only constituents which were detected during at least one prior sampling event and were analyzed during the spring 2014 sampling event are summarized.4. Statistical calculations for events where multiple samples were collected from one location were conducted treating the initial sample for that event as a parent and the other sample type as a split. For

locations with duplicate and/or split analytical results, if there is a detection in any of the samples for a location during a single monitoring event, a single detection is reported when calculating the detection frequency. Minimum and maximum detects are the minimum and maximum from all analytical results, treating duplicate and split samples separately. Medians, arithmetic averages, and geometric means are calculated by treating the arithmetic average of paired duplicate results, split samples and primary samples each as a single result. One half of the associated reporting limit is used for any non-detected results in the summary statistics presented.

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324TblsE1-E12.xlsx - OPCA-MW-8 Page 3 of 3 7/25/2014

Page 186: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Total VOC Concentrations – Wells Sampled in Spring 2014

Page 187: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsx - 78-1

Page 1 of 1

7/24/2014

0.005 J

ND

ND

0.0047 J

ND

ND

ND

ND

ND

ND

ND

0.0019 J

0.0016 J

ND

0.00074 J

ND

0.0028 J

ND

ND

ND

ND

ND

ND

0.00018 J

0.0012 J

ND

ND

ND

ND

ND

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell 78‐1 Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Average Detected Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. B - Indicates that the compound was found in the associated blanks as well as in the sample.4. Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this

well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

5. The average total VOC concentration for all detected VOCs at this well is 0.00227 ppm and is illustrated as a dashed line below.

Page 188: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. B - Indicates that the compound was found in the associated blanks as well as in the sample.4.

5. The average total VOC concentration for all detected VOCs at this well is 0.00227 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

0.005 J

ND

0.0047 J

ND

ND

ND

0.0019 J

ND

ND

ND

ND ND

0.00018 J

ND

ND

ND

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell 78‐1 Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

ND

ND

ND

ND

ND

0.0016 J

0.00074 J

0.0028 J

ND

ND

ND

0.0012 J

ND

ND

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Total VOC Average Detected Total VOC Concentration

Fall Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal 78-1

Page 1 of 1 7/24/2014

Page 189: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsx - 78-6

Page 1 of 1

7/24/2014

0.012 J

ND

ND

ND

ND

ND

ND

ND

0.002 J

ND

ND

0.0011 J

ND

0.0019

ND

0.0014 J

ND

ND

ND

ND

ND

ND

ND

0.0015 J

ND

0.00066 J

ND

ND

0.0021 J

[ND]

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell 78‐6/78‐6R Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Average Detected Total VOC Concentration

Notes:1. Well 78-6 was replaced by well 78-6R on 6/25/13.2. ND - Indicates constituent was not detected above the practical quantitation limit.3. J - Indicates that the associated numerical value is an estimated concentration.4. B - Indicates that the compound was found in the associated blanks as well as in the sample.5. Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-

3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

6. Field Duplicate results are presented side by side with sample results and are indicated by brackets.7. The average total VOC concentration for all detected VOCs at this well is 0.0028 ppm and is illustrated as a dashed line below.

Page 190: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. B - Indicates that the compound was found in the associated blanks as well as in the sample.4.

5. Field Duplicate results are presented side by side with sample results and are indicated by brackets.6. The average total VOC concentration for all detected VOCs at this well is 0.0028 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

0.012 J

ND

ND

ND

ND

0.002 J

ND

ND

ND

ND

ND

ND

ND

ND

ND

0.0021 J

[ND]

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell 78‐6 Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

ND

ND

ND

ND

0.0011 J

0.0019

0.0014 J

ND

ND

ND

0.0015 J

0.00066 J

ND

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Total VOC Average Detected Total VOC Concentration

Fall Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal 78-6

Page 1 of 1 7/24/2014

Page 191: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsx - GMA4-6

Page 1 of 1

7/24/2014

0.00032 J

ND

ND

0.003

ND

0.0034 J

ND

0.00068 J

0.0024

0.0023

0.0016 J

0.00042 J

0.00098 J

ND

ND

ND

[ND]

[0.0024]

[0.0017 J]

[0.0013]

[ND]

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Nov‐06 Apr‐07 Oct‐07 Apr‐08 Oct‐08 Apr‐09 Oct‐09 Apr‐10 Oct‐10 Apr‐11 Oct‐11 Apr‐12 Oct‐12 Apr‐13 Oct‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell GMA4‐6 Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-

3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0017 ppm and is illustrated as a dashed line below.

Page 192: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0017 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

ND

0.003

0.0034 J

0.00068 J

0.0023

0.00042 J

ND ND

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Apr‐07 Apr‐08 Apr‐09 Apr‐10 Apr‐11 Apr‐12 Apr‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell GMA4‐6 Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

0.00032 J

ND

ND

ND

0.0024

0.0016 J

0.00098 J

ND

[ND]

[0.0024]

[0.0017 J]

[0.0013]

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Nov‐06 Oct‐07 Oct‐08 Oct‐09 Oct‐10 Oct‐11 Oct‐12 Oct‐13

Concen

tration (ppm

)

Date of Sample

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration

Fall Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal GMA4-6

Page 1 of 1 7/24/2014

Page 193: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsx - H78B-15

Page 1 of 1

7/24/2014

ND

ND

ND

ND

ND

ND

ND

0.0016 J

ND

ND

ND

ND

ND

0.0062 J

ND

0.0034 J

ND

0.00021 J

ND

0.00013 J

ND

0.00015 J

ND

ND

0.00063 J

0.0011 J

ND

ND

ND

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell H78B‐15 Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Average Detected Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. Although the MCP GW-2 Standards and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3

standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0017 ppm and is illustrated as a dashed line below.

Page 194: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0017 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Standards and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

0.00063 J

ND

ND

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell H78B‐15 Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

ND

ND

ND

0.0016 J

ND

ND

0.0062 J

0.0034 J

0.00021 J

0.00013 J

0.00015 J

ND

0.0011 J

ND

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Total VOC Average Detected Total VOC Concentration

Fall Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal H78B-15

Page 1 of 1 7/24/2014

Page 195: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsx - OPCA-MW-1RR

Page 1 of 1

7/24/2014

3.6

5.65.3

4.4 J

3.7 J

2.9 J

2.2

4.3 J

1.0

2.8

2.22.4 J

[5.7]

0

1

2

3

4

5

6

7

8

9

10

Oct‐08 Apr‐09 Oct‐09 May‐10 Oct‐10 Apr‐11 Oct‐11 Apr‐12 Oct‐12 Apr‐13 Oct‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐1RR Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration SOW GW‐2 Standard

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-

3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions (Illustrated as the solid line below).

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 3.4 ppm and is illustrated as a dashed line below.

SOW Notification Level for GW‐2 Wells (5 ppm)

Page 196: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 3.4 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

5.6

4.4 J

2.9 J

4.3 J

2.8

2.4 J

[5.7]

0

1

2

3

4

5

6

7

8

9

10

Apr‐09 May‐10 Apr‐11 Apr‐12 Apr‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐1RR Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

SOW Notification Level for GW‐2 Wells (5 ppm)

Spring Total VOC Concentrations

3.6

5.3

3.7 J

2.2

1.0

2.2

0

1

2

3

4

5

6

7

8

9

10

Oct‐08 Oct‐09 Oct‐10 Oct‐11 Oct‐12 Oct‐13

Concen

tration (ppm

)

Date of Sample

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration SOW GW‐2 Standard

Fall Total VOC Concentrations

SOW Notification Level for GW‐2 Wells (5 ppm)

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal OPCA-MW-1RR

Page 1 of 1 7/24/2014

Page 197: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsx - OPCA-MW-2R

Page 1 of 1

7/24/2014

ND

ND

ND

ND

ND

ND

ND

0.0013 J

ND

0.0025 J

ND

0.0028 J

0.0013 J

ND

0.00053 J

NS

0.0031 J

ND 0.00013 J

0.01 J

0.00095 J

ND

0.0014 J

ND

0.0083 J

ND

ND

ND

[ND]

[ND]

[ND]

[0.00054 J]

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐2/OPCA‐MW‐2R Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. NS - Indicates well was not sampled. 4. Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-

3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

5. OPCA-MW-2 was replaced by OPCA-MW-2R in Fall 2008.6. Field Duplicate results are presented side by side with sample results and are indicated by brackets.7. The average total VOC concentration for all detected VOCs at this well is 0.0029 ppm and is illustrated as a dashed line below.

Page 198: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. NS - Indicates well was not sampled. 4.

5.

6. Field Duplicate results are presented side by side with sample results and are indicated by brackets.7. The average total VOC concentration for all detected VOCs at this well is 0.0029 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

OPCA-MW-2 was replaced by OPCA-MW-2R in Fall 2008.

ND

ND

ND

ND

0.0013 J

0.0025 J

0.0028 J

ND

NS ND

0.01 J

ND

ND

ND

ND

[ND]

[ND]

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐2/OPCA‐MW‐2R Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

ND

ND

ND

ND

ND

0.0013 J

0.00053 J

0.0031 J

0.00013 J

0.00095 J

0.0014 J

0.0083 J

ND

[ND]

[0.00054 J]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration

Fall Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsxSeasonal OPCA-MW-2R

Page 1 of 1

7/24/2014

Page 199: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsxOPCA-MW-3

Page 1 of 1

7/24/2014

ND

ND

ND

ND

ND

0.015

ND

ND

ND

ND 0.00055 J

ND

ND

ND

ND

ND

ND

0.021

ND

ND

ND

0.0047 J

0.0013 J

ND

0.0074 J

ND

ND

ND

[ND]

[ND]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐3 Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Average Detected Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-

3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0083 ppm and is illustrated as a dashed line below.

Page 200: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0083 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

ND

ND

ND

0.015

ND

ND

ND

ND

ND

0.021

ND

0.0047 J

ND

ND

ND

[ND]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐3 Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

ND

ND

ND

ND 0.00055 J

0.015

ND

ND

ND

ND

0.0013 J

0.0074 J

ND

[ND]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

Concen

tration (ppm

)

Date of Sample

Total VOC Average Detected Total VOC Concentration

Fall Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal OPCA-MW-3

Page 1 of 1 7/24/2014

Page 201: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsxOPCA-MW-4

Page 1 of 1

7/24/2014

ND

ND

ND

ND

ND

0.0028

0.003 J

0.0035 J

0.0015 J

0.0063 J

0.001 J

0.0016 J

0.0032 J

0.001

0.002 J

0.0018 J

0.0018 J

0.002 J

0.0035 J

0.0079 J

0.0018

0.0018 J

0.0031 J

0.0037 J

0.012 J

0.0012

0.00094 J

0.0012 J

[0.016 J]

[0.0037 J]

[0.0018]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

0.050

0.055

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐4 Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. Although the MCP GW-2 Standards and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3

standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0052 ppm and is illustrated as a dashed line below.

Page 202: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0052 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Standards and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

ND

ND

0.003 J

0.0015 J

0.001 J

[0.0032 J

0.002 J

0.0018 J

0.0035 J

0.0018 J

0.0031 J

0.012 J

0.00094 J

[0.0037 J]

[0.0018 J]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

0.050

0.055

Concen

tration (ppm

)

Date of Sample

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration

Fall Total VOC Concentrations

ND

ND

ND

0.0028

0.0035 J

0.0063 J

0.0016 J

0.001

0.0018 J

0.002 J

0.0079 J

0.0018 J

0.0037 J

0.0012

0.0012 J

[0.016 J]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

0.050

0.055

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐4 Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal OPCA-MW-4

Page 1 of 1 7/24/2014

Page 203: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsxOPCA-MW-5R

Page 1 of 1

7/24/2014

ND

ND

ND

ND

ND

ND

0.0028 J

0.0011 J

0.0036 J

ND

0.0015 J

0.0092 J

0.0031 J

ND

0.00035 J

0.0017 J

0.00033 J

0.0023 J

0.0075 J

0.0037 J

0.00011 J

0.0025 J

0.015 J

0.0026 J

ND

ND

0.0011

ND

0.00036 J

[ND]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐5R Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Average Deteced Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. Although the MCP GW-2 Standards and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3

standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0054 ppm and is illustrated as a dashed line below.

Page 204: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3.

4. Field Duplicate results are presented side by side with sample results and are indicated by brackets.5. The average total VOC concentration for all detected VOCs at this well is 0.0054 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Standards and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

ND

ND

0.0028 J

0.0036 J

0.0015 J

0.0031 J

0.00035 J

0.00033 J 0.0075 J

0.00011 J

0.015 J

ND

0.0011

ND

[ND]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

Concen

tration (ppm

)

Date of Sample

Total VOC Average Deteced Total VOC Concentration

Fall Total VOC Concentrations

ND

ND

ND

ND

0.0011 J

ND

0.0092 J

ND

0.0017 J

0.0023 J

0.0037 J

0.0025 J

0.0026 J

ND

0.00036 J

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐5R Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsx

Seasonal OPCA-MW-5R

Page 1 of 1

7/24/2014

Page 205: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsxOPCA-MW-6

Page 1 of 1

7/24/2014

ND

ND

NS

ND

ND

0.0085 J

ND

ND

ND 0.0016 J

ND

ND

0.00027 J

ND

ND 0.0015 J

ND

0.053 J

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

[ND]

[ND]

[ND]

[ND]

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

0.100

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐6 Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Average Detected Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. NS - Indicates well was not sampled. 4. Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-

3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

5. Field Duplicate results are presented side by side with sample results and are indicated by brackets.6. The average total VOC concentration for all detected VOCs at this well is 0.0130 ppm and is illustrated as a dashed line below.

Page 206: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. NS - Indicates well was not sampled. 4.

5. Field Duplicate results are presented side by side with sample results and are indicated by brackets.6. The average total VOC concentration for all detected VOCs at this well is 0.0130 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

NS

ND

ND

ND

ND

0.00027 J

ND

ND

ND

ND

ND

ND

ND

[ND]

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

0.100

Concen

tration (ppm

)

Date of Sample

Total VOC Average Detected Total VOC Concentration

Fall Total VOC Concentrations

ND

ND

ND

0.0085 J

ND

0.0016 J

ND

ND 0.0015 J

0.053 J

ND

ND

ND

ND

ND

[ND]

[ND]

[ND]

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

0.100

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐6 Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal OPCA-MW-6

Page 1 of 1 7/24/2014

Page 207: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsxOPCA-MW-7

Page 1 of 1

7/24/2014

ND

ND

ND

ND

NS

ND

ND

ND

ND

ND

0.0026 J

ND

0.00022 J

ND

0.00029 J

0.00014 J

ND

ND

ND

ND

0.0055

0.0023 J

ND

ND

ND

0.011 J

ND

ND

ND

[ND]

[0.0057]

[ND]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

0.050

0.055

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐7 Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. NS - Indicates well was not sampled. 4. Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-

3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

5. Field Duplicate results are presented side by side with sample results and are indicated by brackets.6. The average total VOC concentration for all detected VOCs at this well is 0.0086 ppm and is illustrated as a dashed line below.

Page 208: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. NS - Indicates well was not sampled. 4.

5. Field Duplicate results are presented side by side with sample results and are indicated by brackets.6. The average total VOC concentration for all detected VOCs at this well is 0.0086 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

ND

ND

ND

ND

ND

ND

ND

ND 0.00014 J

ND

ND

0.0055

ND

ND

ND

ND

[0.0057]

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐7 Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Consentrations

ND

NS

ND

ND

0.0026 J

0.00022 J

0.00029 J

ND

ND

0.0023 J

ND

0.011 J

ND

[ND]

0.000

0.002

0.004

0.006

0.008

0.010

0.012

0.014

0.016

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Total VOC Total VOC ‐ Duplicate Samples Average Detected Total VOC Concentration

Fall Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal OPCA-MW-7

Page 1 of 1 7/24/2014

Page 209: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-VOC.xlsxOPCA-MW-8R

Page 1 of 1

7/24/2014

ND

ND

ND

ND

ND

0.026

ND

0.0024 J

ND

0.0026 J

0.00067 J

ND

0.00037 J

0.011

ND

ND

ND

NS

ND

ND

0.00028 J

ND

0.0023 J

ND

0.008 J

ND

ND

ND

[ND]

[ND]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐8/OPCA‐MW‐8R Historical Total VOC Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Total VOC Average Detected Total VOC Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. NS - Indicates well was not sampled. 4. Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-

3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

5. OPCA-MW-8 was replaced by OPCA-MW-8R in August 2009.6. Field Duplicate results are presented side by side with sample results and are indicated by brackets.7. The average total VOC concentration for all detected VOCs at this well is 0.0093 ppm and is illustrated as a dashed line below.

Page 210: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. NS - Indicates well was not sampled. 4.

5.

6. Field Duplicate results are presented side by side with sample results and are indicated by brackets.7. The average total VOC concentration for all detected VOCs at this well is 0.0093 ppm and is illustrated as a dashed line above.

Although the MCP GW-2 Benchmark Levels and GW-3 Standards are applicable to this well, there are no listed MCP GW-2 or GW-3 standards or UCLs for total VOCs. However, total VOCs are compared to the 5 ppm level specified in the SOW as a notification level for GW-2 wells located within 30 feet of a school or occupied residential structure and as a trigger level for the proposal of interim actions.

OPCA-MW-8 was replaced by OPCA-MW-8R in August 2009.

ND

ND

ND

ND

0.00067 J

0.00037 J

ND

ND ND

0.00028 J

0.0023 J

0.008 J

ND

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

Concen

tration (ppm

)

Date of Sample

Total VOC Average Detected Total VOC Concentration

Fall Total VOC Concentrations

ND

ND

ND

0.026

0.0024 J

0.0026 J

ND

0.011

ND

NS

ND

ND

ND

ND

ND

[ND]

[ND]

0.000

0.005

0.010

0.015

0.020

0.025

0.030

0.035

0.040

0.045

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐8/OPCA‐MW‐8R Historical Total VOC Concentrations ‐ Seasonal Breakdown

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Spring Total VOC Concentrations

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\

2251411324AppxE-VOC.xlsx - Seasonal OPCA-MW-8R

Page 1 of 1 7/24/2014

Page 211: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Total Dissolved (filtered) PCB Concentrations – Wells Sampled in Spring 2014

Page 212: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsx78-1

Page 1 of 1

7/24/2014

ND

ND

ND

0.000043

ND

0.00014

ND

0.000045

ND

0.00009

0.00024

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

0.000072

ND

0.0000076

ND

ND

ND

ND

{0.000022}

{0.000023}

{[0.000193]}

0.0000

0.0001

0.0002

0.0003

0.0004

0.0005

Concen

tration (ppm

)

Date of Sample

Appendix EWell 78‐1 Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) PCBs (Filtered) ‐ Split Samples PCBs (Filtered) ‐Split Sample ‐ Duplicates Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples and is utilized as a benchmark at this location.4. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.5. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.7. Field Duplicate results are presented in brackets, while split sample results are presented in braces { } .8. Paired averaged duplicate results, splits and primary samples were each treated as a single result for calculating the overall average concentration

illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.9. The average total filtered PCB concentration at this well is 0.0000588 ppm (Illustrated as the dashed line below).

Page 213: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsx78-6

Page 1 of 1

7/24/2014

ND

0.000054 J

ND

ND

ND

0.000058 J

ND

0.000022 J

ND

0.000065 J

0.00079

ND ND

ND

ND

ND ND

ND

ND

ND

ND

ND

ND

0.000046 J

ND

ND

ND

ND

[ND]

[ND]

[0.000046 J]

{ND}

{[ND]}

{[ND]}

{0.000093}

0.0000

0.0001

0.0002

0.0003

0.0004

0.0005

0.0006

0.0007

0.0008

0.0009

0.0010

Concen

tration (ppm

)

Date of Sample

Appendix EWell 78‐6/78‐6R Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) PCBS (Filtered) ‐ Duplicate Samples PCBs (Filtered) ‐ Split Samples Average PCBs (Filtered) Concentration

Notes:1. Well 78-6 was replaced by well 78-6R on 6/25/13.2. ND - Indicates constituent was not detected above the practical quantitation limit.3. J - Indicates that the associated numerical value is an estimated concentration.4. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples and is utilized as a

benchmark at this location.5. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.6. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.7. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.8. Field Duplicate results are presented in brackets, while split sample results are presented in braces { }.9. Paired averaged duplicate results, splits and primary samples were each treated as a single result for

calculating the overall average concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.

10. The average total filtered PCB concentration at this well is 0.0000718 ppm (Illustrated as the dashed line below).

Page 214: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxGMA4-6

Page 1 of 1

7/24/2014

ND J

ND

ND

ND

ND

ND J

ND

ND

ND

ND

0.000059 J

ND

ND

ND

ND

ND

ND

[ND]

[ND]

[ND]

[ND]

[ND]

{ND}

{ND}

{0.000034} EPA

{0.000058} EPA

0.00000

0.00001

0.00002

0.00003

0.00004

0.00005

0.00006

0.00007

0.00008

0.00009

0.00010

Concen

tration (ppm

)

Date of Sample

Appendix EWell GMA4‐6 Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) PCBs (Filtered) ‐ EPA Split Samples Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples and is utilized as a benchmark at this location.4. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.5. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.7. Field Duplicate results are presented in brackets, while split sample results are presented in braces { } and followed by "EPA" for results from the EPA.8. Paired averaged duplicate results, splits and primary samples were each treated as a single result for calculating the overall average concentration illustrated

below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.9. The average total filtered PCB concentration at this well is 0.0000517 ppm (Illustrated as the dashed line below).

Page 215: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxH78B-15

Page 1 of 1

7/24/2014

0.00051

ND

ND

ND

0.0084

ND 0.000024 J

ND 0.000035 J

0.000031 J

ND 0.00033

ND J

ND

ND

ND J

ND J

ND

ND

ND

ND 0.00019

ND

ND

ND

ND

ND

ND

{0.000029}

[ND]

0.000

0.001

0.002

0.003

0.004

0.005

0.006

0.007

0.008

0.009

0.010

0.011

0.012

Concen

tration (ppm

)

Date of Sample

Appendix EWell H78B‐15 Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) PCBS (Filtered) ‐ Split Samples GW‐2 Standard GW‐3 Standard Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples (Illustrated below as the dash-dotted line).4. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples (Illustrated above as the solid line).5. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.7. Field Duplicate results are presented in brackets, while split sample results are presented in braces { }.8. Paired averaged duplicate results, splits and primary samples were each treated as a single result for calculating the overall average

concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.9. The average total filtered PCB concentration at this well is 0.000379 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.010 ppm)

GW‐2 Standard (0.005 ppm)

Page 216: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxOPCA-MW-1RR

Page 1 of 1

7/24/2014

ND J

ND

ND

ND

ND

0.00045

ND

ND

ND

ND

ND

ND

[ND]

0

0.0001

0.0002

0.0003

0.0004

0.0005

0.0006

0.0007

0.0008

0.0009

0.001

Oct‐08 Apr‐09 Oct‐09 May‐10 Oct‐10 Apr‐11 Oct‐11 Apr‐12 Oct‐12 Apr‐13 Oct‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐1RR Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantiation limit.2. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples and is utilized as a benchmark at this location.3. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.4. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.6. Field Duplicate results are presented in brackets.7. Paired averaged duplicate results and primary samples were each treated as a single result for calculating the overall average

concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average total filtered PCB concentration at this well is 0.0000881 ppm (Illustrated as the dashed line below).

Page 217: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxOPCA-MW-2R

Page 1 of 1

7/24/2014

ND

0.00093

ND

0.00016

0.000082

ND 0.000043 J

0.00002 J

0.000062 J

0.00012 J

ND J

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

[ND]

[0.00019 J]

[ND J]

{ND}

0

0.0002

0.0004

0.0006

0.0008

0.001

0.0012

0.0014

0.0016

0.0018

0.002

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐2/OPCA‐MW‐2R Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) PCBs (Filtered) ‐ Duplicate Samples Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantiation limit.

2. J - Indicates that the associated numerical value is an estimated concentration.3. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples and is utilized as a benchmark at this location.4. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.5. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.7. OPCA-MW-2 replaced by OPCA-MW-2R in fall 2008.8 . Field Duplicate results are presented in brackets, while split sample results are presented in braces { }.9. Paired averaged duplicate results, splits and primary samples were each treated as a single result for calculating the overall average

concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.10. The average total filtered PCB concentration at this well is 0.0000904 ppm (Illustrated as the dashed line below).

Page 218: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxOPCA-MW-3

Page 1 of 1

7/24/2014

ND J

ND

ND

0.000033 J

0.000049 J

0.000067

ND

ND

0.000052 J

0.000047 J

0.00018

ND J

ND

ND

ND

ND

ND

ND

ND

ND

0.000081 J

ND

ND

ND

ND

ND

ND

[ND]

[ND]

[0.000062 J]

{ND}

0.00000

0.00005

0.00010

0.00015

0.00020

0.00025

0.00030

0.00035

0.00040

0.00045

0.00050

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐3 Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) PCBs (Filtered) ‐ Duplicate Samples Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples and is utilized as a benchmark at this location.4. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.5. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.7. Field Duplicate results are presented in brackets, while split sample results are presented in braces { }.8. Paired averaged duplicate results, splits and primary samples were each treated as a single result for calculating the overall average

concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.9. The average total filtered PCB concentration at this well is 0.0000528 ppm (Illustrated as the dashed line below).

Page 219: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxOPCA-MW-4

Page 1 of 1

7/24/2014

0.00015

0.000045 J

0.000029 J

0.000074

0.00026

0.000045 J

ND

0.000228

0.000219

0.00028

0.00031

ND J

0.000043 J

ND

ND

ND

ND

ND

ND

0.00014

0.00157

0.00013

0.0001

ND

ND

ND

0.00031

[0.000039 J]

[ND J]

{0.00023}

0.0000

0.0002

0.0004

0.0006

0.0008

0.0010

0.0012

0.0014

0.0016

0.0018

0.0020

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐4 Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) PCBs (Filtered) ‐ Duplicate Samples PCBs (Filtered) ‐ Split Samples Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples.4. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.5. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.7. Field Duplicate results are presented in brackets, while split sample results are presented in braces { }.8. Paired averaged duplicate results, splits and primary samples were each treated as a single result for calculating the overall average

concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.9. The average total filtered PCB concentration at this well is 0.000175 ppm (Illustrated as the dashed line below).

Page 220: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxOPCA-MW-5R

Page 1 of 1

7/24/2014

ND

ND

ND

ND

0.000039 J

0.000092

0.000037 J

0.000084 J

0.000073

0.00011

0.00026

ND J

0.00024

ND

ND J

ND J

ND

ND

ND

ND

0.000246

ND

ND

0.000026 J

ND

ND

ND

{ND J}

0.0000

0.0001

0.0002

0.0003

0.0004

0.0005

0.0006

0.0007

0.0008

0.0009

0.0010

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐5/OPCA‐MW‐5R Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples.4. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.5. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.7. OPCA-MW-5 was replaced by OPCA-MW-5R in spring 2001.8. Field Duplicate results are presented in brackets, while split sample results are presented in braces { }.9. Paired averaged duplicate results, splits and primary samples were each treated as a single result for calculating the overall average

concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.10. The average total filtered PCB concentration at this well is 0.0000750 ppm (Illustrated as the dashed line below).

Page 221: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxOPCA-MW-6

Page 1 of 1

7/24/2014

ND

ND

0.000047 J

0.000088

0.000158

ND

ND

0.00051

0.000078

ND

ND J

ND

ND

0.00017 J

ND J

ND

ND

ND

ND

0.000065 J

0.000027 J

0.000013 J

ND

ND

ND

ND

[ND J]

[ND]

[0.000071 J]

[ND]

{ND}

0.0000

0.0001

0.0002

0.0003

0.0004

0.0005

0.0006

0.0007

0.0008

0.0009

0.0010

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐6 Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) PCBs (Filtered) ‐ Duplicate Samples Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples and is utilized as a benchmark at

this location.4. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.5. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.7. Field Duplicate results are presented in brackets, while split sample results are presented in braces { }.8. Paired averaged duplicate results, splits and primary samples were each treated as a single result for calculating the

overall average concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.

9. The average total filtered PCB concentration at this well is 0.0000778 ppm (Illustrated as the dashed line below).

Page 222: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxOPCA-MW-7

Page 1 of 1

7/24/2014

ND

ND

ND

0.000066

ND

ND 0.000231

0.00039

0.00033

ND

ND

0.00211

ND

ND

ND

ND

ND

ND

0.000065 J

ND

ND

ND

ND

ND

ND

{0.000095}

0.0000

0.0005

0.0010

0.0015

0.0020

0.0025

0.0030

0.0035

0.0040

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐7 Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) Split Sample Total (Filtered) Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. J - Indicates that the associated numerical value is an estimated concentration.3. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples and is utilized as a benchmark at this location.4. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.5. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.7. Split sample results are presented in braces { }.8. Splits and primary samples were each treated as a single result for calculating the overall average concentration illustrated below.

Non-detected results were incorporated at a value of one-half of the practical quantitation limit.9. The average total filtered PCB concentration at this well is 0.000166 ppm (Illustrated as the dashed line below).

Page 223: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

G:\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-PCB.xlsxOPCA-MW-8R

Page 1 of 1

7/24/2014

ND

ND

ND

ND

ND

0.000359

0.000055 J

0.000066 J

0.000061 J

ND J

ND

ND

ND

ND

0.00019

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

[ND]

{ND} EPA

{ND} EPA

{ND} EPA

{ND} EPA

{ND}

0.0000

0.0001

0.0002

0.0003

0.0004

0.0005

0.0006

0.0007

0.0008

0.0009

0.0010

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐8/OPCA‐MW‐8R Historical Total PCB Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

PCBs (Filtered) Average PCBs (Filtered) Concentration

Notes:1. ND - Indicates constituent was not detected above the practical quantitation limit.2. R - Indicates that data was rejected to due a deficiency in the data generation process.3. J - Indicates that the associated numerical value is an estimated concentration.4. MCP GW-2 Standard at the time of sampling was 0.005 ppm for filtered samples and is utilized as a benchmark

at this location.5. MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples.6. MCP UCL at the time of sampling was 0.100 ppm for unfiltered and filtered samples.7. The new standards, which were not in effect at the time of the sampling, did not change for PCBs.8. OPCA-MW-8 was replaced by OPCA-MW-8R in August 2009.9. Field Duplicate results are presented in brackets, while split sample results are presented in braces { } and followed

by "EPA" for results from the EPA.10. Paired averaged duplicate results, splits and primary samples were each treated as a single result for calculating the

overall average concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.

11. The average total filtered PCB concentration at this well is 0.0000696 ppm (Illustrated as the dashed line below).

Page 224: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Tetrachloroethene Concentrations – Selected Wells Sampled in Spring 2014

Page 225: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-1RR PCE

Page 1 of 1

7/25/2014

3.6

5.65.3

4.4

3.3

2.9

2.2

4.3

1.0

2.7

2.2 D2.4

[5.6]

0.0

1.0

2.0

3.0

4.0

5.0

6.0

7.0

8.0

9.0

10.0

Oct‐08 Apr‐09 Oct‐09 May‐10 Oct‐10 Apr‐11 Oct‐11 Apr‐12 Oct‐12 Apr‐13 Oct‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐1RR Historical Tetrachloroethene (PCE) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachu

PCE PCE ‐ Duplicate Samples GW‐2 Benchmark Level Average PCE Concentration

Notes:1. This well is not a compliance point for GW-2 standards. However, the well concentrations are compaired to the GW-2 Standard of 0.05 ppm for

informational purposes only (Illustrated as the solid line below).2. The MCP GW-3 Standard at the time of sampling was 30 ppm.3. The MCP UCL at the time of sampling was 100 ppm.4. The new standards, which were not in effect at the time of the sampling, did not change for PCE.5. D Indicates that the compound was quantitated using a secondary dilution6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated below. 8. The average PCE concentration at this well is 3.33 ppm (Illustrated as the dashed line below).

GW‐2 Benchmark Level (0.05 ppm)

Page 226: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Trichloroethene Concentrations – Selected Wells Sampled in Spring 2014

Page 227: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-1RR TCE

Page 1 of 1

7/25/2014

ND

ND

ND

0.036 J

ND

0.034 J

0.022 J

0.042 J

0.016 J

0.027

0.03

0.027 J

[ND]

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

0.100

Oct‐08 Apr‐09 Oct‐09 May‐10 Oct‐10 Apr‐11 Oct‐11 Apr‐12 Oct‐12 Apr‐13 Oct‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐1RR Historical Tricholoroethene (TCE) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachus

TCE GW‐2 Benchmark Level Average TCE Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. J indicates that the associated numerical value is an estimated concentration.3. This well is not a compliance point for GW-2 standards. However, the well concentrations are compaired to the GW-2 Standard at

the time of sampling of 0.03 ppm for informational purposes only (Illustrated as the solid line below). The new GW-2 standard, which was not in effect at the time of the sampling, is 0.005 ppm.

4. The MCP GW-3 Standard iat the time of sampling was 5 ppm.5. The MCP UCL at the time of sampling was 50 ppm.6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated below.

Non-detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average detected TCE concentration at this well is 0.0293 ppm (Illustrated as the dashed line below).

GW‐2 Benchmark Level (0.03 ppm)

Page 228: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Vinyl Chloride Concentrations – Selected Wells Sampled in

Spring 2014

Page 229: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-4 Vinyl Chloride

Page 1 of 1

7/25/2014

ND

ND

ND

ND

ND

0.0028

ND

0.0015 J

ND

ND

ND

ND

0.00055 J

ND

ND

0.00032 J

ND J

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND J

[ND]

[0.00057 J]

[ND]

0.0000

0.0005

0.0010

0.0015

0.0020

0.0025

0.0030

0.0035

0.0040

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐4 Historical Vinyl Chloride Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Vinyl Chloride Vinyl Chloride ‐ Duplicate Samples GW‐2 Standard Average Vinyl Chloride Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. J indicates that the associated numerical value is an estimated concentration.3. This well is a GW-2 compliance well; the MCP GW-2 Standard at the time of sampling was 0.002 ppm (Illustrated as the solid

line below). 4. The MCP GW-3 Standard at the time of sampling was 50 ppm.5. The MCP UCL at the time of sampling was 100 ppm.6. The new standards, which were not in effect at the time of the sampling, did not change for vinyl chloride.7. Field Duplicate results are presented side by side with sample results and indicated by brackets. 8. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated

below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.9. The average vinyl chloride concentration at this well is 0.000935 ppm (Illustrated as the dashed line below).

GW‐2 Standard (0.002 ppm)

Page 230: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-5 Vinyl Chloride

Page 1 of 1

7/25/2014

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

0.0071

ND

ND

ND

0.0012 J

ND J

0.001

0.00054 J

0.00097 J

ND

0.00043 J

0.00045 J

0.00029 J

ND

ND

ND

ND J

[ND]

0.000

0.001

0.002

0.003

0.004

0.005

0.006

0.007

0.008

0.009

0.010

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐5R Historical Vinyl Chloride Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Vinyl Chloride GW‐2 Standard Average Vinyl Chloride Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. J indicates that the associated numerical value is an estimated concentration.3. This well is a GW-2 compliance well; the MCP GW-2 Standard at the time of sampling was 0.002 ppm

(Illustrated as the solid line below). 4. The MCP GW-3 Standard at the time of sampling was 50 ppm.5. The MCP UCL at the time of sampling was 100 ppm.6. The new standards, which were not in effect at the time of the sampling, did not change for vinyl

chloride.7. Field Duplicate results are presented side by side with sample results and indicated by brackets. 8. The average of paired primary and duplicate samples was used for calculating the overall average

concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.

9. The average vinyl chloride concentration at this well is 0.00112 ppm (Illustrated as the dashed line below).

GW‐2 Standard (0.002 ppm)

Page 231: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Cadmium Concentrations – Selected Wells Sampled in

Spring 2014

Page 232: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-1RR Cadmium

Page 1 of 1

7/25/2014

0.00256 B J

ND

ND

ND

ND J

ND J

ND

0.00006 B

0.00278

0.00230 B

0.00270

0.0273 J

[ND]

0.0000

0.0050

0.0100

0.0150

0.0200

0.0250

0.0300

0.0350

Oct‐08 Apr‐09 Oct‐09 May‐10 Oct‐10 Apr‐11 Oct‐11 Apr‐12 Oct‐12 Apr‐13 Oct‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐1RR Historical  Dissolved Cadmium (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Ma

Cadmium (Filtered) GW‐3 Standard Average Cadmium (Filtered) Concentration

GW‐3 Standard (0.004 ppm)

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration3. The MCP GW-3 Standard at the time of sampling was 0.004 ppm for filtered samples (Illustrated as the solid line below).4. The MCP UCL at the time of sampling was 0.05 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for cadmium.6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated below.

Non-detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average dissolved cadmium (filtered) concentration at this well is 0.00379 ppm (Illustrated as the dashed line below).

Page 233: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-2R Cadmium

Page 1 of 1

7/25/2014

ND

ND

ND

ND J

ND

ND

ND

ND

ND

0.0012 B

ND

ND

ND J

ND J

0.00263 B J

ND

ND

ND

ND

ND

ND

ND

ND

ND 0.0001 B

ND

[ND]

[ND]

[ND J]

0.0000

0.0005

0.0010

0.0015

0.0020

0.0025

0.0030

0.0035

0.0040

0.0045

0.0050

0.0055

0.0060

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐2R Historical Dissolved Cadmium (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Mass

Cadmium (Filtered) GW‐3 Standard Average Cadmium (filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard at the time of sampling was 0.004 ppm for filtered samples (Illustrated as the solid line below).4. The MCP UCL at the time of sampling was 0.05 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for cadmium.6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated below. Non-

detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average dissolved cadmium (Filtered) concentration at this well is 0.00198 ppm (Illustrated as the dashed line below).

GW‐3  Standard (0.004 ppm)

Page 234: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-4 Cadmium

Page 1 of 1

7/25/2014

ND

ND

ND

ND

ND

ND

ND

ND ND

ND

ND ND

ND

ND J

ND J

0.00276 B J

ND

ND

ND

ND

ND

ND 0.00006 B

ND

ND

ND 0.0000700 B

[ND]

[ND]

0.0000

0.0005

0.0010

0.0015

0.0020

0.0025

0.0030

0.0035

0.0040

0.0045

0.0050

0.0055

0.0060

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐4 Historical Dissolved Cadmium (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massa

Cadmium (Filtered) GW‐3 Standard Average Cadmium (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard at the time of sampling was 0.004 ppm for filtered samples (Illustrated as the solid line below).4. The MCP UCL at the time of sampling was 0.05 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for cadmium.5. Field Duplicate results are presented side by side with sample results and indicated by brackets. 6. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated below.

Non-detected results were incorporated at a value of one-half of the practical quantitation limit.7. The average dissolved cadmium (Filtered) concentration at this well is 0.00203 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.004 ppm)

Page 235: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-5R Cadmium

Page 1 of 1

7/25/2014

0.0014 B

0.000085 B

ND

ND

ND

ND

ND

ND

ND

ND

0.00087 B

ND J

ND

ND J

ND J

ND J

ND

ND

ND

ND

ND

ND 0.00005 B

ND

ND

0.00038 B

0.00176

0.0000

0.0005

0.0010

0.0015

0.0020

0.0025

0.0030

0.0035

0.0040

0.0045

0.0050

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐5R Historical Dissolved Cadmium (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Mass

Cadmium (Filtered) GW‐3 Standard Average Lead (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard iat the time of sampling was 0.004 ppm for filtered samples (Illustrated as the solid line above).4. The MCP UCL at the time of sampling was 0.05 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for cadmium.6. The average detected dissolved cadmium (Filtered) concentration at this well is 0.000758 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.004 ppm)

Page 236: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-6 Cadmium

Page 1 of 1

7/25/2014

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND J

ND

ND

ND J

ND J

ND

ND ND

ND

ND

0.00024 B

ND

ND ND

ND

ND J

[0.00328 B J]

[ND]

[ND]

[ND]

0.0000

0.0005

0.0010

0.0015

0.0020

0.0025

0.0030

0.0035

0.0040

0.0045

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐6 Historical Dissolved Cadmium (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massa

Cadmium (Filtered) Cadmium (Filtered) ‐ Duplicate Samples GW‐3 Standard Average Cadmium (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard at the time of sampling was 0.004 ppm for filtered samples

(Illustrated as the solid line above).4. The MCP UCL at the time of sampling was 0.05 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for

cadmium.6. Field Duplicate results are presented side by side with sample results and indicated by

brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall

average concentration illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.

8. The average dissolved cadmium (Filtered) concentration at this well is 0.00207 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.004 ppm)

Page 237: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-7 Cadmium

Page 1 of 1

7/25/2014

ND

ND

ND

ND

ND

ND

ND

0.000570 B

ND

ND J

ND J

ND

ND J

ND J

ND

ND

ND

ND J 0.000150 B

0.000460 B

ND

0.000380 B

ND

0.000470 B

0.00208

0.0000

0.0005

0.0010

0.0015

0.0020

0.0025

0.0030

0.0035

0.0040

0.0045

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐7 Historical Dissolved Cadmium (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massa

Cadmium (Filtered) GW‐3 Standard Average Cadmium (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard at the time of sampling was 0.004 ppm for filtered samples (Illustrated as the solid line below).4. The MCP UCL at the time of sampling was 0.05 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for cadmium.6. The average dissolved cadmium (Filtered) concentration at this well is 0.00208 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.004 ppm)

Page 238: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-8R Cadmium

Page 1 of 1

7/25/2014

ND

ND

ND

ND J

ND

ND

ND

ND

ND

ND

ND

ND J

ND

ND

ND J

0.00287 B J

ND

ND

ND J

ND

ND

ND 0.0001

ND

ND

ND

[ND]

0.0000

0.0005

0.0010

0.0015

0.0020

0.0025

0.0030

0.0035

0.0040

0.0045

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐8/8R Historical Dissolved Cadmium (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Ma

Cadmium (Filtered) GW‐3 Standard Average Cadmium (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard at the time of sampling was 0.004 ppm for filtered samples (Illustrated as

the solid line above).4. The MCP UCL at the time of sampling was 0.05 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for cadmium.6. Field Duplicate results are presented in brackets.7. The average dissolved cadmium (Filtered) concentration at this well is 0.00210 ppm (Illustrated as the

dashed line below).

GW‐3 Standard (0.004 ppm)

Page 239: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Cobalt Concentrations – Selected Wells Sampled in Spring 2014

Page 240: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-4 Cobalt

Page 1 of 1

7/25/2014

ND

ND

ND

0.05 B

ND J

ND

ND

ND ND

ND

ND

ND J

ND

ND

ND J

ND J

ND

ND J

ND

ND

ND J

ND J

ND

0.0046 J

ND

0.000025 B

ND J

[ND]

[ND J]

0.000

0.010

0.020

0.030

0.040

0.050

0.060

0.070

0.080

0.090

0.100

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐4 Historical Dissolved Cobalt (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massac

Cobalt (Filtered) GW‐3 Standard Average Cobalt (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard at the time of sampling was 0.075 ppm for filtered samples (Illustrated as the solid line above).4. An MCP UCL for cobalt has not been established.5. The new standards, which were not in effect at the time of the sampling, did not change for cobalt.6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated below.

Non-detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average dissolved cobalt (Filtered) concentration at this well is 0.0146 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.075 ppm)

Page 241: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

Lead Concentrations – Selected Wells Sampled in Spring 2014

Page 242: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - 78-6 Lead

Page 1 of 1

7/25/2014

ND J

ND J

ND

ND

ND

ND

ND

ND

ND

ND

ND

ND J

ND

ND

ND

0.00684 B J

ND

ND J

ND

ND J

ND J

ND J

ND J

ND

ND

ND

ND J

[ND]

[ND J]

0.000

0.002

0.003

0.005

0.006

0.008

0.009

0.011

0.012

0.014

0.015

0.017

0.018

0.020

Concen

tration (ppm

)

Date of Sample

Appendix EWell 78‐6/78‐6R Historical Dissolved Lead (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachachusetts

Lead (Filtered) GW‐3 Standard Average Lead (Filtered) Concentration

Notes:1. Well 78-6 was replaced by well 78-6R on 6/25/13.2. ND indicates constituent was not detected above the practical quantitation limit.3. B or J indicates that the associated numerical value is an estimated concentration4. The MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples (Illustrated as the solid line below).5. The MCP UCL at the time of sampling was 0.15 ppm for unfiltered and filtered samples.6. The new standards, which were not in effect at the time of the sampling, did not change for lead.7. Field Duplicate results are presented side by side with sample results and indicated by brackets. 8. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated below.

Non-detected results were incorporated at a value of one-half of the practical quantitation limit.9. The average dissolved lead (filtered) concentration at this well is 0.00347 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.010 ppm)

Page 243: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - GMA4-6 Lead

Page 1 of 1

7/25/2014

ND J

ND

ND

ND

ND J

ND

ND J

ND J

ND

ND

0.00899 J

ND J

ND

ND 0.00032 B

ND J

[0.00692 J]

[ND]

[ND]

[ND]

[ND J]

0.000

0.002

0.003

0.005

0.006

0.008

0.009

0.011

0.012

0.014

0.015

0.017

0.018

0.020

Nov‐06 Apr‐07 Oct‐07 Apr‐08 Oct‐08 Apr‐09 Oct‐09 Apr‐10 Oct‐10 Apr‐11 Oct‐11 Apr‐12 Oct‐12 Apr‐13 Oct‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell GMA4‐6 Historical Dissolved Lead (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachuset

Lead (Filtered) Lead (Filtered)Duplicate Samples

GW‐3 Standard Average Lead (Filtered) Concentration

GW‐3 Standard (0.010 ppm)

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. J or B indicates that the associated numerical value is an estimated concentration3. The MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples (Illustrated as the solid line below).4. The MCP UCL at the time of sampling was 0.15 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for lead.6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated

below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average dissolved lead (filtered) concentration at this well is 0.00474 ppm (Illustrated as the dashed line below).

Page 244: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - H78B-15 Lead

Page 1 of 1

7/25/2014

0.00260 J

ND J

ND J

ND

ND

ND J

ND

ND

ND J

ND

ND

ND

ND J

ND

ND

ND

ND J

ND

ND J

ND J

ND

ND J

ND J

ND J

ND

ND

ND

0.00826 J

[ND]

0.000

0.002

0.003

0.005

0.006

0.008

0.009

0.011

0.012

0.014

0.015

Concen

tration (ppm

)

Date of Sample

Appendix EWell H78B‐15 Historical Dissolved Lead (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Lead (Filtered) GW‐3 Standard Average Lead (Filtered) Concentration

GW‐3 Standard (0.010 ppm)

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. J indicates that the associated numerical value is an estimated concentration3. The MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples (Illustrated as the solid line below).4. The MCP UCL at the time of sampling was 0.15 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for lead.6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration

illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average dissolved lead (filtered) concentration at this well is 0.00351 ppm (Illustrated as the dashed line below).

Page 245: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-1RR Lead

Page 1 of 1

7/25/2014

0.00395 B J

ND

ND J

ND

ND J

ND

0.00854 J

ND J

ND

ND

ND

0.00982 J

[ND]

0.000

0.002

0.003

0.005

0.006

0.008

0.009

0.011

0.012

0.014

0.015

Oct‐08 Apr‐09 Oct‐09 May‐10 Oct‐10 Apr‐11 Oct‐11 Apr‐12 Oct‐12 Apr‐13 Oct‐13 Apr‐14

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐1RR Historical Dissolved Lead (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Lead (Filtered) GW‐3 Standard Average Lead (Filtered) Concentration

GW‐3 Standard (0.010 ppm)

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration3. The MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples (Illustrated as the solid line below).4. The MCP UCL at the time of sampling was 0.15 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for lead.6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration

illustrated below. Non-detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average dissolved lead (filtered) concentration at this well is 0.00503 ppm (Illustrated as the dashed line below).

Page 246: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-3 Lead

Page 1 of 1

7/25/2014

ND J

ND J

ND J

ND

ND J

ND

0.0022 B

ND

ND

ND

ND

ND J

ND

ND

ND

0.00564 B J

ND

ND J

ND

ND

ND

ND J

ND J

ND J

ND

ND

ND J

[ND J]

[ND J]

[ND J]

0.000

0.001

0.002

0.003

0.004

0.005

0.006

0.007

0.008

0.009

0.010

0.011

0.012

0.013

0.014

0.015

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐3 Historical Dissolved Lead (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Lead (Filtered) GW‐3 Standard Average Lead (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples (Illustrated as the solide line below).4. The MCP UCL at the time of sampling was 0.15 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for lead.6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated below.

Non-detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average dissolved lead (Filtered) concentration at this well is 0.00348 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.010 ppm)

Page 247: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-5R Lead

Page 1 of 1

7/25/2014

ND

ND J

ND

ND

ND

ND

ND

ND J

ND

ND

ND

ND J

ND

ND

ND

0.00657 B J

0.00445 B

ND J

ND

ND

ND

ND J

ND J

ND J

ND

0.0006 B

ND J

0.000

0.001

0.002

0.003

0.004

0.005

0.006

0.007

0.008

0.009

0.010

0.011

0.012

0.013

0.014

0.015

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐5R Historical Dissolved Lead (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Lead (Filtered) GW‐3 Standard Average Lead (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard iat the time of sampling was 0.010 ppm for filtered samples (Illustrated as the solid line below).4. The MCP UCL at the time of sampling was 0.15 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for lead.6. The average dissolved lead (Filtered) concentration at this well is 0.00347 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.010 ppm)

Page 248: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-6 Lead

Page 1 of 1

7/25/2014

ND J

ND

ND

ND J

ND

ND

ND J

ND

ND

ND

ND J

ND

ND

ND

0.00641 B J

ND

ND J

ND J

ND

ND

ND J

ND J

ND J

ND

ND

ND J

[0.00718 B J]

[ND J]

[ND]

[ND]

0.000

0.002

0.003

0.005

0.006

0.008

0.009

0.011

0.012

0.014

0.015

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐6 Historical Lead (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Lead (Filtered) Lead (Filtered) ‐ Duplicate Samples GW‐3 Standard Average Lead (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples (Illustrated as the solid line below).4. The MCP UCL at the time of sampling was 0.15 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for lead.6. Field Duplicate results are presented side by side with sample results and indicated by brackets. 7. The average of paired primary and duplicate samples was used for calculating the overall average concentration illustrated below. Non-

detected results were incorporated at a value of one-half of the practical quantitation limit.8. The average dissolved lead (Filtered) concentration at this well is 0.00353 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.010 ppm)

Page 249: POST-CLOSURE GROUNDWATER MONITORING EVENT … · 2020. 9. 1. · Barbara Landau, Noble & Wickersham** Rod McLaren, GE* James Nuss ... * cover letter only * cover letter and CD of

\\arcadis-us.com\officedata\Syracuse-NY\GE\GE_Pittsfield_CD_OPCAs\Reports and Presentations\GW Mon Rpt Spring 2014\2251411324AppxE-IndvConst.xlsx - OPCA-MW-7 Lead

Page 1 of 1

7/25/2014

ND

ND

ND J

ND

ND

ND J

ND

ND

ND

ND J

ND

ND

ND

ND J

0.00583 B

ND J

ND

ND

ND

ND J

ND J

ND J

ND

ND

ND J

0.000

0.002

0.003

0.005

0.006

0.008

0.009

0.011

0.012

0.014

0.015

Concen

tration (ppm

)

Date of Sample

Appendix EWell OPCA‐MW‐7 Historical Dissolved Lead (Filtered) Concentrations

Post‐Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On‐Plant Consolidation Areas for Spring 2014General Electric Company ‐ Pittsfield, Massachusetts

Lead (Filtered) GW‐3 Standard Average Lead (Filtered) Concentration

Notes:1. ND indicates constituent was not detected above the practical quantitation limit.2. B or J indicates that the associated numerical value is an estimated concentration.3. The MCP GW-3 Standard at the time of sampling was 0.010 ppm for filtered samples (Illustrated as the solid line

below).4. The MCP UCL at the time of sampling was 0.15 ppm for unfiltered and filtered samples.5. The new standards, which were not in effect at the time of the sampling, did not change for lead.6. The average dissolved lead (Filtered) concentration at this well is 0.00360 ppm (Illustrated as the dashed line below).

GW‐3 Standard (0.010 ppm)