EPA Response to September 11 | Region 2

Background Documents

Draft Recruitment Strategy for Test and Clean Program (November 29, 2005) (PDF, 2pp, 28KB)

Draft Quality Assurance Project Pan (November, 2005)
- Draft Quality Assurance Project Plan For Extent Of WTC Indoor Dust Test And Clean Program (PDF, 41pp, 2.5MB)
- Figure 1 - Sampling Area (JPG, 1pp, 1.1MB)
- Figure 2 - Display of boundaries of expected deposition based on analysis conducted by EPA's Environmental Photographic Interpretation Center (EPIC, 2004) (JPG, 1 pp, 450KB)
- Attachment 2 - HUD Appendix 13.1: Wipe Sampling for Settled Lead-Contaminated Dust (PDF, 8pp, 114KB)
- Attachment 4A - Indoor Dust Sampling Protocols (PDF, 35pp, 2MB)
- Attachment 4B - FR Notice (10/30/97) EPA 40 CFR Part 763 Asbestos-Controlling Materials in Schools; Final Rule and Notice (PDF, 96pp, 944KB)
- Attachment 4C - HUD Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing - Chapter 7 Lead-Based Paint Inspection (1997 revision) (PDF, 47pp, 258KB)
- Attachment 4D - Field Sampling Procedures for Airborne Asbestos and MMVF Samples at Building Interior Areas (PDF, 2pp, 107KB)
- Attachment 7A - Sampling and Analytical Methods for the Test and Clean Program (PDF, 3pp, 187KB)
- Attachment 7B - Asbestos by TEM (PDF, 7pp, 62k)

The U.S. EPA's Environmental Photographic Interpretation Center (EPIC) evaluated aerial photographs and digital imagery of the area around the World Trade Center in order to identify those areas most significantly impacted by dust, debris and other structural materials resulting from the collapse of the buildings on September 11, 2001. EPIC is EPA's primary source of interpreted remote sensing data.
- Final EPIC Report - Text (PDF 37pp, 435KB)
- Final EPIC Report - Figures (PDF 20pp, 9.1MB)

Comments on WTC Signature Study and Peer Review from Greg Meeker, Paul Lioy and Mort Lippmann (Signature Study Subgroup) (November 3, 2005) (PDF, 11pp, 172KB)

Appended Comments on Ashing of Samples (November 9, 2005) (PDF, 1pp, 8KB)

Peer Review of the U.S. Environmental Protection Agency's "Final Report on the World Trade Center (WTC) Dust Screening Study" (October, 2005) (PDF, 114pp, 758KB)

WTC Dust Screening Method Study Peer Reviewers

Final charge questions for the WTC signature study peer review (PDF 3 pp, 56KB)

EPA's final report on the WTC Dust Screening Method Study (August 17, 2005)
- Final Report (PDF 72 pp, 1.95MB)
- Appendix A - the Quality Assurance Project Plan for the screening study (PDF 68 pp, 1.18MB)
Preliminary Versar Signature Method Validation Study Report (July 24, 2005) (PDF, 4pp, 55KB)

Comments on Exclusion of Employees and Employers from "Test And Clean" Program from David M. Newman (July 15, 2005) (PDF, 3pp, 47KB)

Draft Final WTC Sampling Plan (June 30, 2005) (PDF, 47pp, 1511KB)

Draft Quality Assurance Project Pan for Extent of WTC Impacts to the Indoor Environment (June, 2005)
- Quality Assurance Project Plan for Extent of WTC Impacts to the Indoor Environment (PDF, 50pp, 1051KB)
- Figure 1 - Proposed Sampling Area (PDF, 1pp, 300KB)
- Figure 2 - Display of boundaries of expected deposition based on analysis conducted by EPA's Environmental Photographic Interpretation Center (EPIC, 2004) (PDF, 1 pp, 579KB)
- Figure 3 - Spatially Balanced Stratified Building Selection (PDF, 1pp, 26KB)
- Attachment 2 - HUD Appendix 13.1: Wipe Sampling for Settled Lead-Contaminated Dust (PDF, 8pp, 129KB)
- Attachment 4A - Indoor Dust Sampling Protocols (PDF, 34pp, 163KB)
- Attachment 4B - FR Notice (10/30/97) EPA 40 CFR Part 763 Asbestos-Controlling Materials in Schools; Final Rule and Notice (PDF, 96pp, 1,263KB)
- Attachment 4C - HUD Guidelines for the Evaluation and Control of Lead-Based Paint Hazards in Housing - Chapter 7 Lead-Based Paint Inspection (1997 revision) (PDF, 47pp, 394KB)
- Attachment 7A - Sampling and Analytical Methods for the Building Sampling Program (PDF, 6pp, 107KB)
- Attachment 7B - Asbestos by TEM (PDF, 7pp, 87k)
- Attachment 7C - Elements by ICP (Nitric/Perchloric Acid Ashing) (PDF, 8pp, 335KB)
- Attachment 7D - Polynuclear Aromatic Hydrocarbons by HPLC (PDF, 9pp, 192KB)
- Appendix A1 - Generic Quality Assurance Project Plan for WTC Residue Sampling (PDF, 10pp, 196KB)

Compilation of Panel Member Comments - May 24, 2005 (June, 2005) (PDF, 15pp, 89KB)
Draft Quality Assurance Project Plan for Extent of WTC Impacts to the Indoor Environment (April, 2005)

Compilation of comments from individual panel members on the draft WTC sampling plan (Oct. 2004 version) (PDF 25pp, 217KB).
- ATSDR comments on draft sampling plan (Oct. 2004 version) (late submission) (PDF 13pp, 84KB)

A compilation of all public comments that have been received on the Draft Proposed Sampling Program from October 15, 2004 to January 18, 2005 is now available (PDF 108pp, 3.3MB).

WTC Community-Labor Coalition's Comments on Draft Proposed Sampling Program (Dated January 18, 2005) (PDF 58pp, 282KB).

Public comments on the Draft Proposed Sampling Program may be viewed at the e-docket site for the WTC activities: docket.epa.gov/edkfed/do/EDKStaffCollectionDetailView?objectId=0b0007d480230dd8

EPA's response to the "7 Principles" letter of October 26, 2004 from members of the lower Manhattan community, labor and other organizations concerning EPA's response to the WTC disaster and the WTC Expert Panel (Dated November 30, 2004) (PDF 4 pp, 222KB)

Draft Proposed Sampling Program to Determine Extent of World Trade Center Impacts to the Indoor Environment (October 15, 2004) (PDF 36 pp, 2.4MB)
- Federal Register Notice (PDF 3pp, 62KB)
- Press Release (PDF 1pp, 70KB)
- Notice of Extension of Public Comment Period (PDF 2pp, 51KB)
- Second Notice of Extension of Public Comment Period (PDF 5pp, 164KB)

Recap of the Panel's Activities: March 1 to August 31, 2004 (September 2, 2004) (PDF 3 pp, 16KB)

Discussion of Options for World Trade Center Sampling - May 18, 2004 (PDF 19pp, 353KB)

Summary Report for the Peer Review on the Use of Asbestos as a Surrogate Contaminant for Determining the Risk from Other Contaminants - April 29, 2004 (PDF 62pp, 630KB)

Sampling Plan (March 2004 EPA document - PDF 20pp, 129KB)
This document, authored by EPA, provides a general overview of the proposed sampling plan to verify that apartments in the Region 2 cleanup area have not become recontaminated due to central heating ventilation and air conditioning systems. Included in the document is a discussion of the issues pertinent to a statistical design which meets this objective, an overview of the design itself, and a discussion of planned post-survey data analyses.

WTC Sample Design (March 19, 2004 Westat document - PDF 25pp, 957KB)
This document, authored by Westat, Inc, under contract to EPA, provides the details of the proposed statistical design for this resampling effort. The document provides the derivations of the 95% confidence intervals for different proposed sample sizes, and also discusses pertinent issues such as the impact of oversampling for key sub-populations of apartments. (PDF 25pp, 957KB)

News Release Announcing the Panel Formation

Council on Environmental Quality letter to Senators Clinton and Lieberman - October 27, 2003 (PDF 3 pp, 39KB)

Considerations for the development of a method for identification of signature components of World Trade Center contamination (PDF 7pp, 116KB)

World Trade Center Indoor Environment Assessment: Selecting Contaminants of Potential Concern and Setting Health-Based Benchmarks

World Trade Center Background Study Report

World Trade Center Residential Confirmation Cleaning Study

Final Report of the Public Health Investigation to Assess Potential Exposures to Airborne and Settled Surface Dust in Residential Areas of Lower Manhattan - September 2002 (PDF 137pp, 3.8MB)

Ambient and Indoor Samples for Public Health Evaluations of Residential Areas Near the World Trade Center - Sampling Protocol - February 26, 2002 (PDF 46pp, 236KB)

Summary Report: Characterization of Particulates Found in Apartments After Destruction of the World Trade Center - October 12, 2001 (PDF 50pp, 699KB)

You will need Adobe Acrobat Reader, available as a free download, to view some of the files on this page. See EPA's PDF page to learn more about PDF, and for a link to the free Acrobat Reader.