PFOA Attachments to Letter to C.

f y i - o r o o - /3 7 < f Attachments to Letter to C.

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

Internal Correspondence cc: R.

3M General Offices mH?

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M 2.26 - 06 7Z Centre Analytical Laboratories.

AkA.n6.oG%0 raceAnalytical" Field Services Division Pace Analytical Services, Inc. 1700ElmStreet, Suite200 Minneapolis, MN55414 Phone: 612.607.1700 Fax: 612.607.6444 Port St.

0730 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (COROPHIUM VOLUTATOR) TEST SUBSTANCE___________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

M A fl - 0794- 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-206A. (1Octanesulfonic acid) (CAS # 2795-39-3).

U- HPf MSLSLb- 1033 M fa- z r V1 DuPont Chtmical Solutojuo Entirp P.O.Box 80023 Wilmington.

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.

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DuPont Engineerin November 20, 2002 OuPoni Engineering Earley Mill Plaia Bldg. 17 Lancaster Pil-s 0 fue. !

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