EPA Cleanups: GE-Pittsfield/Housatonic River Site
On-Plant Consolidation Areas - Reports
On this page:
- OPCA PCB Ambient Air Sampling Results
- OPCA Ambient Air Particulate Matter (Dust) Results
- OPCA Reports
OPCA PCB Ambient Air Sampling Results
- Comparison of EPA and GE OPCA Replicate PCB Air Sampling Results for 2012 (PDF) (1 pg, 16K)
- PCB Air Sampling Results for 2012 (PDF) (1 pg, 15K)
- Comparison of EPA and GE OPCA Replicate PCB Air Sampling Results for 2011 (PDF) (1 pg, 16K)
- PCB Air Sampling Results for 2011(PDF) (1 pg, 18K)
- Comparison of Final EPA and GE OPCA Replicate PCB Air Sampling Results for 2010 (PDF) (1 pg, 17K)
- Final PCB Air Sampling Results for 2010 (PDF) (1 pg, 24K)
- Comparison of Final EPA & GE OPCA Replicate PCB Air Sampling Results for 2009 (PDF) (1 pg, 25K)
- Final PCB Air Sampling Results for 2009 (PDF) (1 pg, 108K)
- PCB Air Sampling Results for 2008 (PDF) (1 pg, 26K)
- Comparison of EPA and GE OPCA Replicate Air Sampling Results for 2008 (PDF) (1 pg, 22K)
- PCB Air Sampling Results (2007) (PDF) (2 pp, 25K)
- Comparison of EPA and GE OPCA Replicate PCB Air Sample Results Through December 2007 (PDF) (1 pg, 23K)
- PCB Air Sampling Results (2006) (PDF) (3 pp, 41K)
- Comparison of EPA and GE OPCA Replicate PCB Air Sample Results Through December 2006 (PDF) (2 pp, 35K)
- PCB Air Sampling Results (August 1999 - December 2005) (PDF) (3 pp, 206K)
- Letter (with report) from Gates (GE) to Tagliaferro (USEPA), January 30, 2007, Hill 78 & Building 71 OPCA Tier III Ambient Air Monitoring Data Validation Report (PDF) (13 pp, 155K)
- Air Sampling Locations (PDF) (1 pg, 845K)
- Photo of Typical Monitoring Station (PDF) (1 pg, 453K)
OPCA Ambient Air Particulate Matter (Dust) Results
- Particulate Results (January 2006 - November 9, 2006) (PDF) (15 pp, 146K)
- Particulate Results (July 1999 - December 2005) (PDF) (50 pp, 397K)
OPCA Reports
- Letter (with enclosure) from Gates (GE) to Pelto (MDEP), May 16, 2013, Re: Hill 78 On-Plant Consolidation Area Work Plan for Bio-Control of Cypress Spurge (PDF) (24 pp, 1.5MB)
- Letter (with attachments) from Gates (GE) to Tagliaferro and Fisher (USEPA), May 2, 2013, Re: East Street Area 2-South, Building 71 and Hill 78 On-Plant Consolidation Areas, Former Oxbow Areas J and K, and Newell Street Area II Summary of October/Novermber 2012 Tree/Shrub Installation Activities (PDF) (7 pp, 1.6MB)
- Letter from Fisher (USEPA) to Gates (GE), April 17, 2013, Re: Conditional Approval of General Electric’s February 4, 2013 submittal titled On-Plant Consolidation Areas, Monitoring Event Evaluation Report for Fall 2012, GEPittsfield/Housatonic River Site (PDF) (4 pp, 42K)
- Letter (with enclosure from Gates (GE) to Fisher (USEPA), February 4, 2013, Re; On-Plant Consolidation Areas Monitoring Event Evaluation Report for Fall 2012 (PDF) (209 pp, 6.4MB)
- Letter (with attachments) from Gates (GE) to Fisher (USEPA), October 11, 2012, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of September 2012 Post-Closure Inspection Activities (PDF) (21 pp, 4.5MB)
- Letter from Pelto (MDEP) to Gates (GE), October 4, 2012, Re: June and August 2012 NRR/E Inspections, Hill 78 On-Plant Consolidation Area (PDF) (2 pp, 186K)
- Letter from Fisher (USEPA) to Gates (GE), October 2, 2012, Re :Approval of General Electric’s July 26, 2012 submittal titled Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Spring 2012, GE-Pittsfield/Housatonic River Site (PDF) (2 pp, 29K)
- Letter (with attachments) from Gates (GE) to Pelto MDEP, September 18, 2012, Re: Hill 78 On-Plant Consolidation Area Summary of August 2012 Inspection of Natural Resource Restoration/Enhancement Measures (PDF) (15 pp, 3.2MB)
- Letter (with attachments) from Gates (GE) to Pelto (MADEP), August 27, 2012, Re: Hill 78 On-Plant Consolidation Area Summary of June 2012 Inspection of Natural Resource Restoration/Enhancement Measures (PDF) (8 pp, 1.5MB)
- Letter (with enclosure) from Gates (GE) to Fisher (USEPA), July 26, 2012, Re: On-Plant Consolidation Areas, Monitoring Event Evaluation Report for Spring 2012 (PDF) (216 pp, 6.3MB)
- Letter(with attachments) from Gates (GE) to Fisher (USEPA), June 8, 2012, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of May 2012 Post-Closure Inspection Activities (PDF) (22 pp, 3MB)
- Letter from Fisher (USEPA) to Gates (GE), March 8, 2012, Re: Approval of General Electric's February 2, 2012 submittal, Post-Closure Groundwater Monitoring Event Evaluation Report for Hill 78 and Building 71 On-Plant Consolidation Areas for Fall 2011, GE-Pittsfield/Housatonic River Site (PDF) (2 pp, 24K)
- Letter (with enclosure) from Gates (GE) to Fisher (USEPA), February 2, 2012, Re: On Plant Consolidation Areas Monitoring Event Evaluation Report for Fall 2011 (PDF) (221 pp, 22MB)
- Letter from Fisher (USEPA) to Gates (GE), January 19, 2012, Re: Approval of General Electric's December 20, 2011 submittal titled On-Plant Consolidation Areas, Final Cover Slope Repair Summary (PDF) (2 pp, 29K)
- Letter (with attachments) from Gates (GE) to Tagliaferro (USEPA), December 20, 2011, Re: On-Plant Consolidation Areas Final Cover Slope Repair Summary (PDF) (12 pp, 1.2MB)
- Letter from Fisher (USEPA) to Gates (GE), October 28, 2011, Re: Conditional Approval of General Electric's October 26, 2011 submittal titled On-Plant Consolidation Areas, Slope Repair Proposal (PDF) (2 pp, 28K)
- Letter (with attachments) from Gates (GE) to Tagliaferro (USEPA), October 26, 2011, Re: On-Plant Consolidation Areas Slope Repair Proposal (PDF) (5 pp, 940K)
- Letter (with attachments) from Gates (GE) to Fisher (USEPA), October 26, 2011, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of September 2011 Post-Closure Inspection Activities (PDF) (23 pp, 4.9MB)
- Letter from Fisher (USEPA) to POLREP DISTRIBUTION LIST, September 29, 2011, Re: Pollution Report (POLREP) 2 and Final Site: Building 71 Consolidation Area Removal Action Area, GE-Pittsfield/Housatonic River Site, Pittsfield, Massachusetts (PDF) (5 pp, 76K)
- Letter from Fisher (USEPA) to POLREP DISTRIBUTION LIST, September 29, 2011, Re: Pollution Report (POLREP) 2 and Final Site: Hill 78 Consolidation Area Removal Action Area (RAA), GE-Pittsfield/Housatonic (PDF) (5 pp, 77K)
- Letter (with enclosure) from Fisher (USEPA) to Gates (GE), September 26, 2011, Re: EPA Approval of, and Certificates of Completion for, General Electric's submittal entitled Final Completion Report - On-Plant Consolidation Areas, dated September 2011 (PDF) (4 pp, 715K)
- Letter (with attachments) from Gates (GE) to Fisher (USEPA), September 23, 2011, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of Unscheduled Inspection Activities in Late August and Early September 2011 (PDF) (23 pp, 4.4MB)
- Letter from Eva V. Tor (MDEP) to Tagliaferro (USEPA), September 22, 2011, Re:Approval of Final Completion Report for the On-Plant Consolidation Areas (PDF) (1 pg, 230K)
- Letter (with enclosure) from Gates (GE) to Tagliaferro (USEPA), September 15, 2011, Re: On-Plant Consolidation Areas Final Completion Report - On-Plant Consolidation Areas (PDF) (5,920 pp, 245.6MB)
- Letter (with attachments) from Gates (GE) to Pelto (MADEP), August 12, 2011, Re: Hill 78 On-Plant Consolidation Area Summary of July 2011 Inspection of Natural Resource Restoration/Enhancement Measures (PDF) (12 pp, 2.2MB)
- Letter from Karen I. Pelto (MDEP) to Gates (GE), August 4, 2011, Re: May and July 2011 NRR/E Inspections, Hill 78 On-Plant Consolidation Area (PDF) (2 pp, 148K)
- Letter from Pelto (MADEP) to Gates (GE), June 21, 2011, Re: Certification of Completion of Installation of Restoration Work Hill 78 On-Plant Consolidation Area (PDF) (2 pp, 114K)
- Letter (with attachments) from Gates (GE) to Fisher (USEPA), June 22, 2011, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of May 2011 Post-Closure Inspection Activities (PDF) (21 pp, 4.3MB)
- Letter (with attachments) from Gates (GE) to Pelto (MDEP), June 22, 2011, Re: Hill 78 On-Plant Consolidation Area Summary of May 2011 Inspection of Natural Resource Restoration/Enhancement Measures (PDF) (12 pp, 2.1MB)
- Letter (with attachment) from Fisher (USEPA) to Gates (GE), June 2, 2011, Re: Conditional Approval of General Electric's January 6, 2011 submittal titled Revised Post-Removal Site Control Plan for Hill 78 and Building 71 On-Plant Consolidation Areas (PDF) (9 pp, 363K)
- Letter (with attachments) from Gates (GE) to Pelto (MDEP), April 26, 2011, Re: Hill 78 On-Plant Consolidation Area, Completion of Installation of Restoration Work Report (PDF) (7 pp, 1.6MB)
- Letter (with enclosure) from Gates (GE) to Fisher (USEPA), January 6, 2011, Re: Hill 78 and Building 71 On-Plant Consolidation Areas Revised Post-Removal Site Control Plan (PDF) (152 pp, 4.6MB)
- Letter from Fisher (USEPA) to Gates (GE), November 8, 2010, Re, Conditional Approval of General Electric's August 15, 2008, Hill 78 and Building 71 On-Plant Consolidation Areas Post-Removal Site Control Plan (PDF) (6 pp, 76K)
- Letter (with attachments) from Gates (GE) to Fisher (USEPA), September 23, 2010, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of August 2010 Post-Closure Inspection Activities (PDF) (14 pp, 2.1MB)
- Letter (with attachments) from Gates (GE) to Pelto (MDEP), September 23, 2010, Re: Hill 78 On-Plant Consolidation Area Summary of August 2010 Inspection of Natural Resource Restoration/Enhancement Measures (PDF) (8 pp, 1.3MB)
- Letter (with attachments) from Gates (GE) to Fisher (USEPA), June 24, 2010, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of May 2010 Post-Closure and Natural Resources Restoration/Enhancement Inspection Activities (PDF) (20 pp, 3.3MB)
- Letter from Gates (GE) to Fisher (USEPA), January 25, 2010, Re: Building 71 and Hill 78 On-Plant Consolidation Areas and Hill 78 Area-Remainder Addendum to Tree Planting Plan (PDF) (3 pp, 495K)
- Letter from Fisher (USEPA) to Gates (GE), January 5, 2010, Re: Conditional Approval of General Electric's November 12, 2009 submittal titled Building 71 and Hill 78 On-Plant Consolidation Areas and Hill 78 Area Remainder Tree Planting Plan (PDF) (2 pp, 26K)
- Letter (with attachment) from Gates (GE) to Tagliaferro (USEPA), November 12, 2009, Re: Building 71 and Hill 78 On-Plant Consolidation Areas and Hill 78-Area Remainder Tree Planting Plan (PDF) (3 pp, 1.7MB)
- Letter (with attachments) from Gates (GE) to Fisher (USEPA), September 29, 2009, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of August 2009 Post-Closure Inspection Activities (PDF) (12 pp, 1.4MB)
- Letter (with attachments) from Gates (GE) to Fisher (USEPA), June 18, 2009, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of May 2009 Post-Closure Inspection Activities (PDF) (12 pp, 2.8MB)
- Letter (with attachments) from Gates (GE) to Hull (USEPA), October 16, 2008, Re: Building 71 and Hill 78 On-Plant Consolidation Areas Summary of Fall 2008 Post-Closure Inspection Activities (PDF) (13 pp, 1.2MB)
- Letter (with attachments) from Gates (GE) to Hull (USEPA), August 15, 2008, Re: Hill 78 and Building 71 On-Plant Consolidation Areas Post-Removal Site Control Plan (PDF) (25 pp, 1.5MB)
- Letter (w/report) from Gates (GE) to Hull (USEPA), June 12, 2008, Re: Building 71 and Hill 78 On- Plant Consolidation Areas Summary of Spring 2008 Post-Closure Inspection Activities (PDF) (13 pp, 1.1MB)
- Letter from Hull (USEPA) to Gates (GE), May 15, 2008, Re: Request for Submittal of a Draft Post-Removal Site Control Plan for Hill 78 and Building 71 On-Plant Consolidation Area Removal Action Areas (PDF) (2 pp, 22K)
- Letter from Gates (GE) to Hull (USEPA), October 29, 2007, Re: Building 71 On-Plant Consolidation Area Summary of Fall 2007 Post-Closure Inspection Activities (PDF) (11 pp, 1.3MB)
- Letter from Hull (USEPA) to Gates (GE), October 22, 2007, Re: Conditional Approval of General Electric's October 5, 2007, submittal titled Addendum to Supplemental Sampling and Engineering Design Report for Re-routing of Sanitary and Storm Sewer Pipelines (PDF) (2 pp, 24K)
- Letter from Gates (GE) to Hull (USEPA), October 5, 2007, Re: Addendum to Supplemental Sampling and Engineering Design Report for Re-routing of Sanitary and Storm Sewer Pipelines, Hill 78 On- Plant Consolidation Area (PDF) (18 pp, 1.7MB)
- Letter from Hull (USEPA) to Gates (GE), September 11, 2007, Re: Conditional Approval of General Electric's July 3, 2007, submittal titled Supplemental Sampling and Engineering Design Report for Re-routing of Sanitary and Storm Water Pipelines (PDF) (3 pp, 27K)
- Letter from Hull (USEPA) to Gates (GE), August 16, 2007, Re: Conditional Approval of GE's December 7, 2006, submittal titled Hill 78 & Building 71 On-Plant Consolidation Areas Ambient Air Monitoring Data Validation Report and its January 30, 2007, submittal titled Hill 78 & Building 71 On-Plant Consolidation Areas Tier III Ambient Air Monitoring Data Validation Report (PDF) (3 pp, 26K)
- Letter from Gates (GE) to Tagliaferro (USEPA), July 11, 2007, Re: Building 71 On-Plant Consolidation Area, Summary of June 2007 Post-Closure Inspection Activities (PDF) (13 pp, 1.2MB)
- Letter, with report, from Gates (GE) to Tagliaferro (USEPA), July 3, 2007, Re: Hill 78 On-Plant Consolidation Area, Supplemental Sampling and Engineering Design Report for Re-routing of Sanitary and Storm Sewer Pipelines (PDF) (71 pp, 15.3MB)
- Letter from Hull (USEPA) to Gates (USEPA), June 28, 2007, Re: Approval of General Electric's June 26, 2007, submittal titled Hill 78 Area Remainder Proposed Additional Sampling Location (PDF) (2 pp, 28K)
- Letter from Gates (GE) to Hull (USEPA), June 26, 2007, Hill 78 Area-Remainder Proposed Additional Sampling Location (PDF) (3 pp, 709K)
- Letter from Tagliaferro (USEPA) to Gates (GE), June 19, 2007, Re: Conditional Approval of General Electric's April 13, 2007, submittal titled Hill 78 On-Plant Consolidation Area Phase III Final Cover Installation Activities (PDF) (3 pp, 133K)
- Letter (with attachments) from Gates (GE) to Tagliaferro (USEPA), April 13, 2007, Re: Hill 78 On-Plant Consolidation Area Phase III Final Cover Installation Activities (PDF) (189 pp, 20.5MB)
- Letter Hull (USEPA) to Gates (GE), April 5, 2007, Re: Conditional Approval of General Electric's February 19, 2007, submittal titled Supplemental Sampling Plan for Re-routing of Sanitary and Storm Water Pipelines (PDF) (3 pp, 22K)
- Letter (with attachments) from Gates (GE) to Tagliaferro (USEPA), February 21, 2007, Re: Hill 78 On-Plant Consolidation Area (PDF) (9 pp, 8.3MB)
- Letter from Gates (GE) to Tagliaferro (USEPA), February 19, 2007, Re: Hill 78 On-Plant Consolidation Area, Supplemental Sampling Plan for Re-routing of Sanitary and Storm Sewer Pipelines (PDF) (18 pp, 1.2MB)
- Letter from Hull (USEPA) to Gates (GE), January 5, 2007, Conditional Approval of GE's October 20, 2006 submittal titled Hill 78 On- Plant Consolidation Area Re-routing of Sanitary and Storm Water Pipelines (PDF) (3 pp, 22K)
- Letter from Gates (GE) to Tagliaferro (USEPA), December 7, 2006, Hill 78 & Building 71 On-Plant Consolidation Areas, Ambient Air Monitoring Data Validation Report (PDF) (36 pp, 190K)
- Letter from Gates (GE) to Tagliaferro (USEPA), October 20, 2006, Hill 78 On-Plant Consolidation Area, Re-routing of Sanitary and Storm Water Pipelines (PDF) (5 pp, 1.6MB)
- Letter (with report) from Gates (GE) to Tagliaferro (USEPA), October 17, 2006, Building 71 On-Plant Consolidation Area, Summary of September 2006 Post-Closure Inspection Activities (PDF) (19 pp, 4MB)
- Letter from Hayes (USEPA) to Silver (GE), August 29, 2006, Approval of General Electric's August 25, 2006 Hill 78 and Building 71 On-Plant Consolidation Areas, August 2006 Addendum to the Phase II Final Cover Construction Plan (PDF) (2 pp, 85K)
- Letter from Gates (GE) to Hayes (EPA), August 25, 2006, Re: HIll 78 and Building 71 On- Plant Consolidation Areas; August 2006 Addendum to the Phase II Final Cover Construction Plan (PDF) (9 pp, 3.6MB)
- Letter from Hayes (USEPA) to Silfer (GE), August 1, 2006, Conditional Approval of GE's May 5, 2006 Hill 78 and Building 71 On-Plant Consolidation Areas, 2006 Consolidation and Phase II Final Cover Construction (PDF) (2 pp, 98K)
- Letter from Novotny (GE) to Hayes (USEPA), May 5, 2006, Hill 78 and Building 71 On-Plant Consolidation Areas, 2006 Consolidation and Phase II Final Cover Construction (PDF) (172 pp, 11.2MB)
- Letter from Hayes (USEPA) to Silfer (GE) April 17, 2006, Re: Approval of General Electric's submittal titled 2006 Addendum to OPCA Work Plan (PDF) (2 pp, 67K)
- Letter from Novotny (GE) to Hayes (USEPA), April 13, 2006, Building 71 and Hill 78 On-Plant Consolidation Areas, 2006 Addendum to OPCA Work Plan (PDF) (21 pp, 3.9MB)
- EPA Update on Air Monitoring at the OPCAs and Allendale School, January 18, 2006 CCC Meeting (PDF) (15 pp, 287K)
- EPA On Plant Consolidation Areas Project Update October 18, 2005 (PDF) (31 pp, 4MB)
- Letter from Hayes (USEPA) to Novotny (GE), August 25, 2005, Approval of GE's July 15, 2005 letter regarding Building 71 and Hill 78 On-Plant Consolidation Areas, 2005 Final Cover Construction for Portion of Building 71 OPCA (PDF) (2 pp, 155K)
- Letter from Novotny (GE) to Hayes (USEPA) August 12, 2005, Building 71 and Hill 78 On-Plant Consolidation Areas, 2005 Final Cover Construction for Portion of Building 71 OPCA (PDF) (42 pp, 5.2MB)
- Letter from Lovely (USEPA) to Silfer (GE), July 21, 2005, Approval of GE's June 15, 2005 letter regarding Building 71 and Hill 78 On-Plant Consolidation Areas, 2005 Construction/Consolidation Activities (PDF) (2 pp, 170K)
- Letter from Novotny (GE) to Hayes (USEPA), July 15, 2005, Building 71 and Hill 78 On-Plant Consolidation Areas, 2005 Final Cover Construction for Portion of Building 71 OPCA (PDF) (142 pp, 16.2MB)
- Letter (with attachments) from Novotny (GE) to Lovely (USEPA), July 13 2005, Re: Building 71 and Hill 78 On-Plant Consolidation Areas 2005 Construction/Consolidation Activities (PDF) (31 pp, 5.2MB)
- Letter from Novotny(GE) to DiLorenzo (USEPA), June 15, 2005, Building 71 and Hill 78 On-Plant Consolidation Areas, 2005 Construction/Consolidation Activities (PDF) (57 pp, 8.9MB)
- Letter from Novotny (GE) to Lovely (USEPA), July 13, 2005, Building 71 and Hill 78 On-Plant Consolidation Areas, 2005 Construction/Consolidation Activities (PDF) (31 pp, 4.8MB)
- Letter from Novotny (GE) to Collingwood (City Hall), April 1, 2004, Hill 78 On-Plant Consolidation Area Sanitary and Storm Drain Manhole Retrofit Activities (PDF) (4 pp, 750K)
- Letter from Silfer (GE) to Tagliaferro (USEPA), February 10, 2004, 1.5 Mile Reach Removal Action, On-Plant Consolidation Area (OPCA) Capacity (PDF) (2 pp, 123K)
- Letter from Novotny (GE) to Olson (USEPA), April 29, 2003, Hill 78 Consolidation Area and Plant Site 3 Groundwater Management Area Proposal to Decommission Monitoring Wells. (PDF) (3 pp, 493K)
- Letter from Novotny (GE) to Olson (USEPA), September 23, 2002, Building 71 On-Plant Consolidation Area, EPA Approval of Proposed Design Modification (PDF) (2 pp, 156K)
- Letter from Novotny (GE) to Olson (USEPA), August 28, 2002, Building 71 On-Plant Consolidation Area, Design Modifications (PDF) (8 pp, 1.7MB)
- Letter from Novotny (GE) to Olson (USEPA), July 9, 2002, Hill 78 On-Plant Consolidation Area Geophysical Testing Results and Proposed Deep Soil Borings (PDF) (15 pp, 5MB)
- Letter from Nalipinski (USEPA) to Silfer (GE), May 28, 2002, Comments on GE's March 27, 2002 report titled Building 71 and Hill 78 On-Plant Consolidation Areas, 2002 Construction/Consolidation Activities (PDF) (2 pp, 225K)
- Letter from Silfer (GE) to Olson (USEPA), March 27, 2002, Building 71 and Hill 78 On-Plant Consolidation Area: 2002 Construction/Consolidation Activities (PDF) (134 pp, 6.1MB)
- Letter from Nalipinski (USEPA) to Silfer (GE), February 28, 2002, Comments on GE's December 20, 2001 report titled Hill 78 On-Plant Consolidation Area Geophysical Testing Results and Environmental Protection Agency's recommended GMA-4 Soil boring locations at Hill 78 (PDF) (3 pp, 560K)
- Semi-Annual Groundwater Monitoring Report for Fall 2001, Hill 78 and Building 71 On-Plant Consolidation Areas (OPCAs), Blasland, Bouck & Lee, Inc., February 2002 (PDF) (130 pp, 7.5MB)
- Letter from Nalipinski (USEPA) to Silfer (GE), January 2, 2002, Conditional Approval of GE's October 2001 Semi-Annual Groundwater Monitoring Report, Hill 78 and Building 71 On-Plant Consolidation Areas (PDF) (3 pp, 323K)
- Letter from Nuss (BBL) to Nalipinski (USEPA), December 20, 2001, Hill 78 On-Plant Consolidation Area Geophysical Testing Results (PDF) (3 pp, 1.5MB)
- Letter from Nalipinski (USEPA) to Silfer (GE), November 13, 2001, Comments on GE's 30 October 2001 Proposal for Geophysical Survey - Hill 78 OPCA (PDF) (2 pp, 175K)
- Letter from Novotny (GE) to Olson (USEPA), October 30, 2001, On-Plant Consolidation Areas, Proposal for Geophysical Survey - Hill 78 OPCA (PDF) (5 pp, 1.6MB)
- Semi-Annual Groundwater Monitoring Report Hill 78 and Building 71 On-Plant Consolidation Areas (OPCAs), Blasland, Bouck & Lee, Inc., October 2001 (PDF) (208 pp, 9.5MB)
- Letter from Nalipinski (USEPA) to Silfer (GE), September 12, 2001, Comments on GE's 10 August 2001 Letter Titled "On-Plant Consolidation Areas Geotechnical Testing of In-Place Materials" (PDF) (2 pp, 293K)
- Letter from Silfer (GE) to Olson (USEPA), September 10, 2001, On-Plant Consolidation Areas, Geotechnical Testing of In-Place Consolidation Materials (PDF) (36 pp, 5.5MB)
- Letter from Silfer (GE) to Olson (USEPA), July 26, 2001, On-Plant Consolidation Areas - Consolidation of EPA-Generated Materials at OPCA's (PDF) (4 pp, 746K)
- Letter from Nalipinski (USEPA) to Silfer (GE), May 29, 2001, GE Building 8/8E Disposition of Demolition Debris at the OPCAs (PDF) (2 pp, 290K)
- Letter from Novotny (GE) to Olson (USEPA), May 24, 2001 GE Building 8/8E, Disposition of Demolition Debris at the OPCAs (PDF) (25 pp, 4.5MB)
- Letter from Silfer (GE) to Olson (USEPA), May 15, 2001, Building 71 and Hill 78 On-Plant Consolidation Areas, 2001 Consolidation Activities. (PDF) (77 pp, 12.6MB)
- Letter from Silfer (GE) to Olson (USEPA), March 9, 2001, On-Plant Consolidation Areas, EPA Conditions for Approval of OPCA Work Plan (PDF) (7 pp, 1.4MB)
- Letter from Nalipinski (USEPA) to Silfer (GE), January 30, 2001, Final Conditional Approval of GE's June 1999 Detailed Work Plan for the On-Site Consolidation Areas (OPCA), as amended by GE's August 12, 1999 Addendum and modified by GE's June 13, 2000 response to EPA's comment letter (collectively, the "Work Plan") (PDF) (4 pp, 485K)
- Letter (with attachments) from Novotny (GE) to Cutler (MDEP) and Nalipinski (USEPA), July 20, 2000, Re: Pre-Excavation Sampling Summary (PDF) (4 pp, 429K)
- Letter from Olson (USEPA) to Silfer (GE), June 26, 2000, Re: GE - Pittsfield/Housatonic River Site, On-Plant Consolidation Area (PDF) (1 pg, 67K)
- Letter from Silfer (GE) to Olson (USEPA), June 13, 2000, On-Plant Consolidation Areas, Response to April 27, 2000 EPA Comments. (PDF) (380 pp, 9.8MB)
- Letter (with attachments) from Silfer (GE) to Olson (USEPA), June 2, 2000, Re: 2000 Consolidation Activities and Stormwater Drainage Improvements Building 71 and Hill 78 On-Plant Consolidation Areas (PDF) (3 pp, 176K)
- Letter from Olson (USEPA) to Silfer (GE), April 27, 2000, Comments on GE's August 1999 Addendum to Their June 1999 Detailed Work Plan for On-Plant Consolidation Areas (PDF) (11 pp, 1.7MB)
- Letter from Silfer (GE) to Olson (USEPA), March 23, 2000, Modifications to Leachate Collection System, Building 71 On-Plant Consolidation Area (PDF) (11 pp, 2.3MB)
- Letter from Cavagnero (USEPA) to Silfer (GE), September 17, 1999, Approval of September 8, 1999 ARARs, On-Plant Consolidation Areas (PDF) (1 pg, 96K)
- Letter (with enclosures) from Silfer (GE) to Cavagnero (USEPA), September 8, 1999, Re: On-Plant Consolidation Areas - Supplemental Addendum to June 1999 Detailed Work Plan (PDF) (15 pp, 639K)
- Letter from Novotny (GE) to Nalipinski (USEPA), August 12, 1999, On-Plant Consolidation Areas - Addendum to June 1999 Detailed Work Plan (PDF) (196 pp, 9.1MB)
- Letter from Nalipinski (USEPA) to Silfer (GE), July 6, 1999, Conditional Approval of General Electric's June 1999 Submittal titled - Detailed Work Plan for On-Plant Consolidation Areas (PDF) (5 pp, 666K)
- Detailed Work Plan for On-Plant Consolidation Areas, Blasland, Bouck & Lee, Inc., June 1999 (PDF) (187 pp, 8.8MB)
- Conceptual Work Plan for Future On-Plant Consolidation Areas, Blasland, Bouck & Lee, Inc., March 1999 (PDF) (62 pp, 6.6MB)
- MCP Phase II, RCRA Facility Investigation Report for Hill 78 Area, US EPA Area 2, Volume I of II, Appendices A through D, Blasland, Bouck & Lee, Inc., August 1997 (PDF) (470 pp, 10.3MB)
- MCP Phase II /RCRA Facility Investigation Report for Hill 78 Area/USEPA Area 2, Volume II of II Appendix E, Blasland, Bouck & Lee, Inc., August 1997 (PDF) (230 pp, 7.4MB)
- Phase I Limited Site Investigation/Current Assessment Summary
Report Hill 78 Area, Geraghty & Miller, Inc., September
1991
- Volumes I (Text, Tables and Figures) (PDF) (74 pp, 2.6MB)
- Volume II (Appendices) (PDF) (312 pp, 9MB)