GE/Housatonic River Site in New England

On-Plant Consolidation Areas - Reports

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OPCA PCB Ambient Air Sampling Results

• PCB Air Sampling Results, Last Updated May 2008 (PDF) (1 p., 38 KB)
• Comparison of EPA and GE OPCA Replicate PCB Air Sample Results, Last Updated June 2008 (PDF) (1 p., 31 KB)
• PCB Air Sampling Results (2007) (PDF) (2 pp., 88 KB)
• Comparison of EPA and GE OPCA Replicate PCB Air Sample Results Through December 2007 (PDF) (1 p., 69 KB)
• PCB Air Sampling Results (2006) (PDF) (3 pp., 184 KB)
• Comparison of EPA and GE OPCA Replicate PCB Air Sample Results Through December 2006 (PDF) (2 pp., 143 KB)
• PCB Air Sampling Results (August 1999 - December 2005) (PDF) (3 pp., 216 KB)
• 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., 439 KB)
• Air Sampling Locations (PDF) (1 p., 845 KB)
• Photo of Typical Monitoring Station (PDF) (1 p., 452 KB)

OPCA Ambient Air Particulate Matter (Dust) Results

• Particulate Results (January 2006 - November 9, 2006) (PDF) (15 pp., 911 KB)
• Particulate Results (July 1999 - December 2005) (PDF) (50 pp., 1.94 MB)

OPCA Reports

• 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., 1.09 MB)
• 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., 25 KB)
• 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., 1.29 MB)
• 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., 27 KB)
• 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., 2.27 MB)
• 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., 31 KB)
• 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., 30 KB)
• 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., 1.17 MB)
• 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. 33 MB)
• 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., 39 KB)
• Letter from Gates (GE) to Hull (USEPA), June 26, 2007, Hill 78 Area-Remainder Proposed Additional Sampling Location (PDF) (3 pp., 710 KB)
• 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., 133 KB)
• 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., 20.54 MB)
• 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., 25 KB)
• 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., 1.68 MB)
• 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., 25 KB)
• 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., 196 KB)
• 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., 1.64 MB)
• 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., 4 MB)
• 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., 86 KB)
• 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., 3.63 MB)
• 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., 98 KB)
• 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., 3.89 MB)
• 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., 71 KB)
• 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., 3.89 MB)
• EPA Update on Air Monitoring at the OPCAs and Allendale School, January 18, 2006 CCC Meeting
  (15 slides., 351 KB, Power Point Presentation)
• EPA On Plant Consolidation Areas Project Update October 18, 2005
  (31 slides., 2.7 MB, Power Point Presentation)

• 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., 159 KB)
• 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., 5.25 MB)
• 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., 168 KB)
• 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 MB)
• 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., 8.8 MB)
• 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., 4.8 MB)
• 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., 754 KB)
• 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., 123 KB)
• 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., 495 KB)
• 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., 155 KB)
• Letter from Novotny (GE) to Olson (USEPA), August 28, 2002, Building 71 On-Plant Consolidation Area, Design Modifications (PDF) (8 pp., 1.7 MB)
• 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., 5 MB)
• 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., 233 KB)
• 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., 19 MB)
• 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., 565 KB)
• 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., 16.3 MB)
• 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., 531 KB)
• Letter from Nuss (BBL) to Nalipinski (USEPA), December 20, 2001, Hill 78 On-Plant Consolidation Area Geophysical Testing Results (PDF) (3 pp., 1.5 MB)
• 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., 174 KB)
• Letter from Novotny (GE) to Olson (USEPA), October 30, 2001, On-Plant Consolidation Areas, Proposal for Geophysical Survey - Hill 78 OPCA (PDF) (5 pp., 1.59 MB)
• Semi-Annual Groundwater Monitoring Report Hill 78 and Building 71 On-Plant Consolidation Areas (OPCAs), Blasland, Bouck & Lee, Inc., October 2001 (PDF) (208 pp., 13.22 MB)
• 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., 298 KB)
• Letter from Silfer (GE) to Olson (USEPA), September 10, 2001, On-Plant Consolidation Areas,  Geotechnical Testing of In-Place Consolidation Materials (PDF) (36 pp.,5.54 MB)
• 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., 745 KB)
• Letter from Nalipinski (USEPA) to Silfer (GE), May 29, 2001, GE Building 8/8E Disposition of Demolition Debris at the OPCAs (PDF) (2 pp., 294 KB)
• Letter from Novotny (GE) to Olson (USEPA), May 24, 2001 GE Building 8/8E, Disposition of Demolition Debris at the OPCAs (PDF) (25 pp., 4.5 MB)
• 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., 12.5 MB)
• 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., 1.3 MB)
• 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., 495 KB)
• Letter from Silfer (GE) to Olson (USEPA), June 13, 2000, On-Plant Consolidation Areas,  Response to April 27, 2000 EPA Comments. (PDF) (380 pp., 18 MB)
• 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., 1.69 MB)
• Letter from Silfer (GE) to Olson (USEPA), March 23, 2000, Modifications to Leachate Collection System, Building 71 On-Plant Consolidation Area (PDF) (11 pp., 2.5 MB)
• Letter from Cavagnero (USEPA) to Silfer (GE), September 17, 1999, Approval of September 8, 1999 ARARs, On-Plant Consolidation Areas (PDF) (1 p., 98 KB)
• Letter from Novotny (GE) to Nalipinski (USEPA), August 12, 1999, On-Plant Consolidation Areas - Addendum to June 1999 Detailed Work Plan (PDF) (106 pp., 18 MB)
• 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., 666 KB)
• Detailed Work Plan for On-Plant Consolidation Areas, Blasland, Bouck & Lee, Inc., June 1999 (PDF) (187 pp., 9 MB)
• Conceptual Work Plan for Future On-Plant Consolidation Areas, Blasland, Bouck & Lee, Inc., March 1999 (PDF) (62 pp., 6.7 MB)
• 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., 24.74 MB)
  • Figure 4-1A Summary of Soil PCB Data (PDF) (1 p., 506 KB)
  • Figure C101 - Building 73 Equipment Construction Drawings (PDF) (1 p., 137 KB)
  • Figure C102 - Building 73 Equipment Construction Drawings (PDF) (1 p., 253 KB)
• 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., 14 MB)
• 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., 3 MB)
  • Volume II (Appendices) (PDF) (312 pp., 19 MB)

Contact information regarding the GE Housatonic River Site.