BACK BIODEGRADATION TEST SUBSTANCE Identity: Remarks: Perfluorooctanesulfonamide; may also be referred to as FOSA or F-10105 (1-Octanesulfonamide, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro, CAS # not available) FOSA was a light yellow waxy solid.

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AAA6 - ll<W TWO-MILE RADIUS SURVEY AND C-8 SAMPLING REPORT DUPONT WASHINGTON WORKS FACILITY/LOCAL LANDFILL, WEST VIRGINIA (MARCH - MAY 2002) T 'O o cn ~Ui0*-77 Date: August 2002 Project No.: D6WW7423 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 CONTAJN NC 000365 Two-mile Radius Survey and C-8 Sampling Report Table of Contents TABLE OF CONTENTS 1.0 Introduction...................................................................................................................1 2.0 C-8 Analyses and Analytical Reporting...................................................................... 3 3.0 Washington Works Facility/Local Landfill Two-mile Radius Survey Summary of Results......................................................................................................5 4.0 Re-sampling of Selected Residences Located Within the One-Mile Radius..............6 5.0 Results for Additional Sampling Locations................................................................. 7 6.0 Path Forward................................................................................................................ 8 7.0 References.................................................................................................................... 9 Table 1 Table 2 Table 3 Table 4 TABLES Summary of Off-site Sampling Program (C-8 Sampling) Summary of C-8 Analytical Results in Groundwater and Surface Water (Off-site Wells, Springs, and Cisterns) Local Landfill Two-mile Radius Summary of C-8 Analytical Results in Drinking Water (Off-site Wells, Springs, and Cisterns)--One-mile Radius Re-sampling at Washington Works Facility/Local, Letart, and Dry Run Landfills Summary of Additional C-8 Analytical Results in Groundwater and Surface Water Figure 1 FIGURES Washington Works Facility and Local Landfill Two-mile Radius Map Appendix A Appendix B APPENDIX Two-mile Radius Well Survey Results--Washington Works Facility and Local Landfill DuPont Washington Works West Virginia Miscellaneous Groundwater Samples WV-2 report.doc Jul. 31, 02 Wilmington, DE 000366 i Two-mile Radius Survey and C-8 Sampling Report Introduction 1.0 INTRODUCTION A multi-media consent order (Order No.

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February 7, 2003 DRAFT Study Plan: Impurity Analysis of Products R A -- / *2- 7 & Telomer Research Program The following is a proposed study plan for the analysis of PFOA in 11 different telomer-based products (see below).

AR226-1418 OPPT-2003-0012: Perfluorooctanoic Acid (PFOA), Fluorinated Telomers; Request for Comment; Solicitation of Interested Parties fo r Enforceable Consent Agreement Development; and Notice of Public Meeting OPPT Docket in which EPA is identifying potential human health concerns about PFOA, requesting comments and additional information, and soliciting interested parties to participate in negotiations on enforceable consent agreements to produce additional data.

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3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May 11, 2004 TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE Click on Study Title to View Report Multiple Chemicals PAGE 1, 2, 3 Human Sera/Medical Surveillance/Epidemiology 1.

Available online at www.sciencedirect.com SCIE NC E DIRECT Regulatory Toxicology and Pharmacology 39 (2004) 363-380 Regulatory Toxicology and Pharmacology www.elsevier.com/locate/yrtph Characterization of risk for general population exposure to perfluorooctanoate John L.

Bladder Cancer in Perfluorooctanesulfonyl Fluoride Manufacturing Workers Final Report Bruce H.

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AR226-2187 EXPOSURE EVALUATION FOR NEW PROCESS AT FAYETTEVILLE SITE Prepared by DuPont Engineering Technology Debbie Mulrooney Cathie Barton August 20, 2001 Revised February 20, 2002 EDD0068699 TABLE OF CONTENTS Executive Summary 1. introduction 2.