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NOTICE: The information provided to the agency contains information that 3M voluntarily has submitted as part of our continuing discussions with the EPA regarding fluorochemistry.

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^ 036-0537 TOXICITY TO AQUATIC PLANTS (E.G., ALGAE) TEST SUBSTANCE Identity: Perfluorooctylsulfonate, didecyldimethylammonium salt; may also be referred to as Fluoroalkyl ammonium derivative. [1Decaminium, N-decyl-N,N-dimethyl-, salt with 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-1octanesulfonic acid (1:1), CAS # 251099-16-8] Remarks: The 3M production lot number was Lot 1.

AR ff.s.6_ OGSG POSF Ongoing- ( 000279 06/22/00 T-7098.1 POSFPK PHARMACOKINETIC STUDY OF POSF IN RATS - STUDY OUTLINE Study Objective: The objective o f this study is to assess the potential for oral absorption, urinary and fecal clearance and biological persistence o f perfluorooctane sulfonyl fluoride (POSF) in male Sprague Dawley rats after a single oral dose.

- & 995 TSCA NCIC Notification Form for CB!

AR226-1397 (snauw um E.

4ft a a 6 _ m 7 ^ i_ i.-- TSCA NCIC Notification Form for CBI Documents Docket Number: ______ ?

Northwest Bioanalytical Study No.

Northwest Bioanalytical Study No.

Northwest Bioanalytical Study No.

AR226-2045 r f ?

AR226-2053 M M !

AR226-2080 ROGER, HERE IS THE IN FORMATION ON THE C-8 SAMPLING DONE IN FINE POWDER SINCE JANUARY 199A.

C;\Documcn(:5 and Settings'^ARTONC\Dcsktop\c6\iaodelmg * AR226- CAB000362 E ID 7 4 4 0 5 5 w IO V __> Minimize Uncertainty Option 1 Option 2 Minimize Model Uncertainty EPA recognizes model uncertainty, especially in short timeframes but doesn't specify over-prediction.