,, FUJOROPOI.YMERS 80-7 30 PAC .!

AR226-2486 ^ David M Rurak 09/06/200201:11 PM To: cc: Subject: Robert F Pinchot/DEV/AE/DuPont@DuPont Environmental coordination _...TM_-^-- Foiwarded by David M Ruralt/AE/DuPont on 09/OS/2002 01:10 PM -- /^ Uma Chowdhry 08/28/2002 11:16 AM To: cc: Subject: David M RRuurraaklv/AAEE//ODuuPPoormrt@@UDuuPPoonntt Environmental coordination Dave, I hear you are the env coordinator for the C8 issue.

- < jr fVMimfWr XN(MMOC AR226-2490 ;BPi", 'A'tiiniigiIP'A'Sfitt ?.

AR226-2706 28 AR226-2706 Society of Environmental Toxicology & Chemistry Summary of DuPont Presentations North American World Congress November 13-18, 2004 Portland, OR Biotransformation of '"C-labeled Fluorotelomer substances by microorganisms from activated sludge or soil.

E.

AR226-3036 Study Title Approximate Lethal Dose (ALD) of H-21333 in Rats Laboratory Project ID Haskell Laboratory Report No. 649-95 Author M.

TRADE SECRET AR226-3078 Study Title H-22762: Mutagenicity Testing in the Salmonella typhimuriwn Plate Incorporation Assay LABORATORY PROJECT ID: HL-1997-00676 AUTHOR: N.

AR226-3142 CONFIDENTIAL SPONSOR ElfAtochemS.A.

HARARE - RAY. 406 MR226 _ 3224 -_ oDwuepwow94n17 TRADE SECRET Study Tide H-25134: Oral Approximate Lethal Dose (ALD) in Rats Laboratory Project ID: DuPont-9417 AUTHOR: Carol Finlay, BA STUDY COMPLETED ON: January 21, 2002 PERFORMING LABORATORY: E.L du Pont de Nemours and Company Haskell Laboratory for Health and Environmental Sciences Elkton Road, P.O.

AR 2aR6_ 3313 . 495 AR226- 3313 piv Supplement Number | --~ TRADE SECRET Study Tide H-25509: Repeated-Dose Dermal Toxicity 28-Day Study in Male Rats Supplement Number 1 TesT GUIDELINES: U.S.

m HASKELL LABORATORY AR226-3377 Common Name: Ammonium Perfluorononanoate Chemical Name: Nonanoic acid, heptadecafluoro-, ammonium salt CAS Registry No.: 4149-60-4 Chemical Structure: 0 CF3 - (CF2)7 - C - 0"^IH4 Physical Properties: Form: Molecular Weight: Boiling Point: Melting Point: Specific Gravity: Vapor Pressure: Conversion Factors: White, dusty powder; Detergent-Like Odor 481 Sublimes Bulk Density (Loose) = 0.49 kg/L Recommended AEL 0.01 mg/m3 (8-hourTWA) General Toxicjty Ammonium perfluorononanoate (C-9) has moderate acute oral toxicity with an LD50 in rats of 407 mg/kg C------Bf 1984).

AR226-2594 .^ ^y KatherinB L Davis 08/23/2002 11:31 AM To: cc: Subject: Andrew S Hartten/AE/DuPont@DuPont, Mark Houlday/AE/DuPorrtQDuPont, Tobin D Lounsbury/AE/DuPontQDuPont, Michael P ShBrri8r/AE/DuPont@DuPont, J Stephen Opp/AE/DuPont@DuPont.

HAZLEZON LABORATORIES AAIERICA, INC. 3301 KINSMAN BLVD.

Experiment No.: Conducted At: Dates Conducted: Conducted By: Reviewed By: Acute Oral Toxicity Screen with T-3494 in Albino Rats 0884AR0013 Safety Evaluation Laboratory Riker Laboratories, Inc.

BIODEGRADATION (OECD 301 E) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonicacid)(CAS # 2795-39-3).