ARox-oisy Attachments to Letter to C.

' 3M Specialty Materials Fil-W ' /37S3M Center St.

AH.Z7.6- tO lg UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 Dear Interested Party: MAR 28 2002 OFFICE OF PREVENTION, PESTICIDES AND TOXIC SUBSTANCES Attached is a copy in PDF file format (389KB) of the Draft Hazard Assessment O f Perfluorooctanoic Acid (PFOA) And Its Salts, prepared by the Risk Assessment Division of the EPA Office of Pollution Prevention and Toxics.

M .3.6- 1099 ^5^37^ The Society of the Plastics Industry, Inc.

3M M edical Department Study: T-6295.22 Analytical Report: FACT-TOX-160 LIMS E00-1668 3M Medical Department Study: T-6295.22 Analytical Report: FACT TOX-160 LIMS E00-1668 Study Title 36> Extended Recovery Study Following a 26-W eek Capsule Toxicity Study (FACT-TO X-030) with Perfluorooctane Sulfonate Acid Potassium Salt (PFOS; T-6295.22) in Cynomolgus Monkeys IIO 3 A nalytical Laboratory Report Title Determination of the Presence and Concentration of PFOS in Serum and Liver Samples of Cynomolgus Monkeys Data Requirem ent Not Applicable A u th o r 3M Environmental Laboratory Study Completion Date May 3, 2002 Performing Laboratories Sera and Liver Analyses Sera and Liver Extractions 3M Environmental Laboratory Building 2-3E-09,935 Bush Avenue St.

A r 8.6 - l 6 l Ce: R.

RECEIVED OPPT NCIC 2003 APR - 9 PH 2= 2 5 T R P Telomer Research Program 31 March 2003 Telomer Process Diagram for US EPA - OPPT AR6- lAG ASAHI GLASS COMPANY Clariant D AIK IN Contains no TSCA CBI Telomer Research Program Telomer Intermediate "Building Blocks" F(CFpCFP)nCH=CHp Telomer B Olefin __________________ F(CF2CF2)nCH2CH2OH Telomer B Alcohol Acrylate Monomer is the most common raw material used to create Finished Products F(CF2CF2)nCH2CH20C (0)C H =C H 2 Telomer Acrylate Monomer Vr V Finished Products a Actual process and manufacturing practices vary by company PFOA is not used or added in these processes Generally, these processes are closed and PFOA creation and/or emissions are expected to be at very low levels Telomer Research Program Telomerization was initially developed by the DuPont Company in the 1940`s for free-radical polymerization of ethylene.

Multiple Chemicals 3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May, 2004 ENVIRONMENTAL STUDIES Click on Study Title to View Report PAGE 1 Environmental Monitoring 1.

3M FLUOROCHEMICAL SUBMISSIONS February, 2002--May, 2004 CLICK A STUDY SECTION BACK TO MAIN TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE Multiple Chemicals PFOS [Perfluorooctanesulfonate] PFOA [Perfluorooctanoic acid] POSF [Perfluorooctanesulfonyl fluoride] PFHS [Perfluorohexane sulfonate] FOSA [Perfluorooctanesulfonamide] N-EtFOSE [N-Ethylperfluorooctane sulfonamidoethanol] ENVIRONMENTAL STUDIES Multiple Chemicals PFOS [Perfluorooctanesulfonate]

3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May, 2004 INDEX OF 3M'S 2002-2004 AR-226 DOCKET SUBMISSIONS BY DATE Back to Menu February 2003 Click on Study Title to View Report February 13,2003 February 13, 2003 Submission Cover Letter Final Report, A Pharmacokinetic Study of Potassium Perfluorooctanoate in the Cynomolgus Monkey, P.E.

3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May, 2004 INDEX OF 3M'S 2002-2004 AR-226 DOCKET SUBMISSIONS BY DATE Back to Menu January 2003 Click on Study Title to View Report January 3, 2003 January 3, 2003 Submission Cover Letter Perfluorooctanesulfonyl Fluoride (POSF), T-7661.2, Bacterial Reverse Mutation Test, Huntingdon Life Sciences, Ltd., October 23, 2002 Perfluorooctanesulfonyl Fluoride (POSF), T-7661.3, In Vitro Mammalian Chromosome Aberration Test in Human Lymphocytes, Huntingdon Life Sciences, Ltd., October 22, 2002.

DuPont-13267 -*2^ 6- /6S3> Study Title Ammonium Perfluorooctanoate: Age Effect on the Plasma Concentration in Post-Weaning Rats Following Oral Gavage A u t h o r : Xing Han, Ph.D.

Sponsor: 3M St.

L arry R.

<n> A U S iirll^ Results to Date from the PFOA Worker Study Ammonium Perfluorooctonoate: Gross-Sectional Surveillance of Clinical Measures of General Health Status Related to a Serum Biomarker of Exposure and Retrospective Cohort Analyses in a Polymer Production Plant Robin C.