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M & a .G - O l Z BIODEGRADATION (BOD/COD) TEST SUBSTANCE________________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-603F. (1Octanesulfonic acid) (CAS # 2795-39-3).

Katherine E.

AU JA 6 _ lUJL UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 SEP 25 2002 OFFICE OF PREVENTION, PESTICIDES AND TOXIC SUBSTANCES MEMORANDUM SUBJECT: Summary of PFOA Exposure Conference Call, September 12, 2002 FROM: TO: Charles M.

/>Ra&C - ( 7 3 Telomer Research Program February 7, 2003 DRAFT Study Plan: Impurity Analysis of Articles RECEIVED 0PPTNCIC 2003 APR 21, PH 2: oi, The following is a proposed study plan for analysis of PFOA in 11 articles treated by telomer-based products (see below).

Katherine E.

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Attachment 1 Page 1 May 19,2004 AIR DATA DUPONT WASHINGTON WORKS SITE This submittal summarizes available information from the following two data collection efforts, both of which are associated with PFOA in air at the DuPont Washington Works site: 1.

3 FLUOROCHEMICAL SUBMISSION October 1987-October 2005 Click a Year back to main TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE 1987 2000 2001 2003 2004 2005

Corporate Occupational Medicine 3M Center, Building 220-3W-05 St.

yWi<26_ 06uS PFOS Medical Surveillance/Epi - I 00013 Interim Report #1 Epidemiology, 220-3W-05 Medical Department 3M Company St.

STUDY TITLE Extraction o f Potassium Perfluorooctanesulfonate from Quail Serum and Quail Liver for Analysis Using HPLC-Electrospray/Mass Spectrometry DATA REQUIREM ENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher STUDY COM PLETED ON September 06, 2001 PERFORM ING LABORATORY / TESTING FACILITY Centre Analytical Laboratories, Inc.