AR226-2405 INTEROFFICE MEMORANDUM TO: Mi Hi am E.

7 IN VITRO MICROBIOLOGICAL MUTAGENICITY ASSAYS OF 3M COMPANY'S COMPOUND T-3290CoC Final Report November 1982 By: Kristien E.

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorcoctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component ofFC-600. (1-Octanesulfoniaccid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-p,otassium salt,CAS # 2795-39-3) Remarks: The 3M productionlotnumber was 628.

InternaClorrespondence rc: ACN: F.

AR 226 -- 09/4 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: A mixture containing perfluorooctanesuifonate, which may also be OrceftearnreesdutlofoansicPFacOiSd,) (FCC-A9S5,# 2o7r9a5s-3a9-c3o)m.ponent of FX-3103. (1- Remarks: The 3M production lot numberwas not noted.

AR226-1989 -;-, . ..i/W^'.r - ^.

\ AR226-2385 PERSONAL AMD COflFroEblTIAL CC!

BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, or as a component ofFC-203CE. (1Octanesulfonicacid)(CAS # 2795-39-3).

re ar +1. 5L PonT pre bE NEmoURS & Company nies PanxePn.sOs.uBnoeWx,.12V1a7. 28102 AR226 _ 133] co: HTaizmaortdhoyusT.WeLsatrea/wGaryound Water Branch WY Division of Water Resources C1h2a01rleGsrteoenn,briWeWr 2S5t3r1e1et CERTIFIED MAIL - RETURN RECEIPT REQUESTED MHra.zaSrtdoeupshenWasR.te WMaasnsaegresumge,nt DiDrievcitsoiron USS.

AR126-0 595 ACTIVATED SLUDGE RESPIRATION INHIBITION I TESTE SUBSS TANT CE ~S ~U ~ BSTANGE Identity: PPeFrOflAuoarmoomcotnaniouimc ascailtd,, Aammmmoonniiuumm psaelrtf;lmuoaryooacltsaonobaeter,efPeFrrOe,d FtoC-as. +11a6m,mFoCn-i1u26m,sFalCt-,1C6A9,So#r3F8C2-51-4236.-1()Octanoic acid, pentadecafiuoro- R14e3m.arIkt'ss :puritTyhweas3Mnoptrsoudfufcitciieonntllyotchnaurmabcteerriwzaeds,3t7h.ouTghhectuersrtesntamipnlfoermisatFiCo-n ainnddiCcastpeesriftliusoaromiaxntaulroegoufe9c6o.5mp-o1u0n0d%s.test substance and 0 -- 3.5% Ce, Cr, wMEETTWHOODD: Methods: Protocol Reference EAR, 11/8/79.

w . ;" MAC QUPORD p= E. 1. oWuILPMoInNtGTpOeN,NeDemAouWrAsRE& 1C9O69M9PANY Poms, AND CONFIDENTIAL ce: Ab YF.oauJl.e FmDialheel -ICl3m5e3 i zis; .

AR226-2069 WASHINGTON WORKS INDUSTRIAL.

AR226-2355 A F^y FCoM: ) (JlJPOIGDu)Pont Engineering j Andrew S.

TOXICITY TO AQUATIC INVERTABRATES (E.G.

Absorption and Biotransformation of N-Ethyl FOSE and Tissue Distribution and Elimination of Carbon-14 after Administration of N-Ethyl POSE-14c in Feed January 19, 1983 Conducted At: During: Conducted By: Report By: Riker Laboratories, 3M Center St.