PFOS: A WHour ToxicitTyest withthe FreshwaterAlga (Selenastrumcapticomutum) TOXICITY TO AQUATIC PLANTS (E.G.

CLEENT PRIVATE PROTOCOL TITLE: Metabolism ofT-6292,T-6293, T-6294, and T-6295 by Rat and Human Hepatocytes SRI Study No.

BIODEGRADATION TEST SUBSTANCE Identity:N-methylperfluorooctanseulfonamidoethanolm;ay also be referredtoas N-MEFOSE Alcohol,FC-790, or FM-3925. (1Octanesulfonamide,N-methyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-N-(2-hydroxyethyClA)S-,# 24448-09-7) Remarks: Materialisan off-whitew,axy solid.Sample purityand lot number were not recorded.

,,.,)HAZLMMON W IS C 0 N S IN POST OFFICE BOX 75,45 s MADISON.

MICROBICS MICROTOXID TOXICITY TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredto as PFOS, FC-95, or as a component of FC-201 F-X. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO FISH (BLUEGILL SUNFISH) TEST SUBSTANCE Identity:MixturecontainingPerfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, or as a component ofFC-206A. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may alsobe referredtoas PFOS, FC-95, oras a component of FC-783. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ARA26 - 3292 45 TRADE SECRET Study Tide F-25509: Repeated Dose Dermal Toxicity 28-Day Study in Male Rats AR 226_ 3293 DuPont 11763 TEST GUIDELINES: US.

aff ~ ~ i #RARG -- 403 7 | AR&R26- 3403 | | ID | i| Site Manual for DuPont PFOAScreening "sThhiipspsiintge cmlainnvicaall csontaainmsfionpsttrhluecDiueoPnsoasnntdPfFOoA qtruoasrutmpeprolsyrtsccroelenliencgtpingr, pjro.cessing, nd SampleCollection onSSuUnnPiPIES......evcrrersn Page -- PaScakimnpglaenPdSHripoDIncgfoFreLhOesRPSRsAOADiAISSEnG.y.g.. co 3 PFOASample Collection Record...

- Sare GY SnLaUdrTrMyVeiRc.eesZroebsDeiilrd,eecnMttoDr MPH 3M Medica Department BEHR _ 10S- 00373 ces RECEIVED OPPYICBI 05HOV23 MMII:05 S351Mr7C5eln3te1S,81BEuiOfdfEiincge10020200-06-W.08 Gimsinin MH 270547 AR 226 - 3S55667 November 16, 2005 GEHQ -9P- 223 Re: TDoScCkAetSNeocst.io8nE8H(Qe)-1S1up8p0l-e3m7e3ntaanldSSuEbHmiOs-s1i1o8n0s:-374 No CBI Dear Sir/Madam: CaNTamsNO on f3lMuorhoacshpermeivciaoluss.lyAssuabmsiutptpeldeamneanltyttiocatlhoresseulstusbmfiosrssieornus,m 3meMaspurroveimdeenstsadodiftviaorniaolursesults as : described below.

3M Company EPI-0027 Page 1 of 20 Final Report Epidemiology, 220-6W-08 Medical Department 3M Company St.

p. 1 Katherine E .

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AR 126-0065 a Centre Analytical Laboratories, Inc.

En-Jo Battelle Field Sampling Procedures Review Columbus GeorgiaCity Survey regarding Empirical Human Exposure Assessment Multi-City Study To : Susan Beach - Project Lead 3M, ET & SS POBox 33331 Building 2-3E-09 St.