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f FOR DU PONT USE ONLY AR226-2942 Du Pont HLR 466-89 Study Title Inhalation Approximate Lethal Concentration (ALC) of Author Rudolph Valentine Study Completed On September 6, 1989 Performing Laboratory E.

fy P .A 9.6 ~ 0 6 8 1 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST SUBSTANCE ____________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-185F. (1Octanesulfonic add) (CAS # 2795-39-3) Rem arks: The 3M production lot number was 1-2303.

A f L SLSL& _ C Q 2 Z ACU TE TO XICITY TO FISH (FATH EAD MINNOW ) T E ST SU B ST A N C E _______________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFO S, FC-95, or as a component of FX-3106. (1Octanesulfonic add) (C A S # 2795-39-3).

UUNNIITTEEDD SSTTAATTEESS EENNVVIIRRORONENMMGEIENONTNTAALLV PPRROOTTEECCTTIIOONN AAGGEENNCCYY REGION V aanndd tthhee MMIINNNNEESSOOTTAA PPOOLLLLUUTTIIOOINN CCOONNTTRROOLL AAGGEENNCCYY IINN TTHHEE MMAATTTTEERR OOFF:: })) CoTTmhheepaMMniiynnnneessoottaa Mining Mining and and Manafactaring Manufacturing )))) SCto.mpaPanuyl, Minnesota St.

31 ~3H Iinnttee~rnnaa~t CCoonrnreessppoonncdeennccee Suvhbiul Corespdimen Fil FGraotme:: UH33U0s0SE-0c-I5sDR]3aee4acRc9s--1i11e9@9Bu6U8a88SRsSePbu0uU6a,rI:r3sd1eipersnoseCCSSsTTnera, DtTeeoroptt::hos RICKER, DON@F'ROFS@SSWMB@LSRETEL Tel No: 1TT0UO::: CKCHAIARLSSLMHIAAWNN,,, HJJOOINNCWNWEL@GPPRROOFF7SS50s@SsSWMweBSOMe@MQQDUUIIGGSLLOYYUIGLY TTOO:: KPIIKLEL,iANM,IKEMICTHA#EeLRoFES oss @PROFS eaulcLy @SSWMB @QUIGLY TO: PIKE, MIKE T @PROFS @SSWMB @QUIGLY Subject: Foo129 Srosesraganility TToo:r UUUsSSoINo09g3TT96E%2-6--U-USUSSSSSFFPOOOI1I | JMMoIInKKEE NTTChPPaIIsKKaEEan USOBZ7I0--USSFOL MICHEL USO827IO--USSF'OI MICHAEL E USIO5996--USSPOI Oon N Chasman FSFRRuOObMMj::ectDSDSsopopnneeccCiiRR1aaiill2ccttkk9yyeerr Che-=micUUaSSl0O5S3DI4iO9vL1isio-~n CBhieomiaceaglraDdiavniisitiiyon UUOSShSSFP-'OOL!

AR 236 -- 075] TOXICITY TO AQUATIC PLANTS EST SUBSTANCE ---- Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

AR 226 -0917 TOXICITY TO AQUATIC PLANTS EST SUBSTANCE Identity: ArefmeirxrteudretocoanstaPiFnOinSg,peFrCf-i9u5o,rooorctaasneasculofmopnoantee,ntwhoifcFhX-m3a1y04a.lso(1b-e Octanesulfonic acid) (CAS # 2795-39-3).

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BACK TO MAIN PHOTODEGRADATION (AQUEOUS DIRECT) TEST SUBSTANCE Identity: N-methylperfluorooctane sulfonamidoethanol; may also be referred to as N-MeFOSE Alcohol, FC-790, or FM-3925. (1-Octanesulfonamide, N-methyl-1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2hydroxyethyl)-, CAS # 24448-09-7) Remarks: Material is an off-white, waxy solid.

FOR DU FONT USE ONLY AR226-2944 Du Pont HLR 444-89 Study Title ___ Static Acute 96-Hour LCSOo1 Fathead Minnows (Pimephales promelas] Author David G.

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BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity:Perfluorooctanoiaccid,ammonium salt;may alsobe referredto as PFOA ammonium saltA,mmonium perfluorooctanoateP,FO, FC116, FC-126, FC-169, or FC-143.

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonawthei,ch may alsobe referredtoas PFOS, FC-95, oras a component of FC-206CE. (1Octanesulfoniaccid)(CAS # 2795-39-3).

ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE Identity:A mixturecontainingperfluorooctanesulfonatweh,ich may also be referredtoas PFOS, FC-95, or as a component of FC-600. (1-Octanesulfonicacid,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.