ATTACHMENT TO LETTER TO C.

C : e 3M Specialy Materials 1M7sCantenromo o F sr-0500- 1378 bef May15, 2000 ARNL-0203 -- Lepr ee 3M cuir BFYII-SeeA-cRo1A378A Director Chemical Control Division OUfnfiitceedofStPaotlelsuEtnivoinrPornemveennttailonPraontdecTtoixoincAsgency 4R0o1oMm 4S0tr3eeEta,stSoTuotwhewers(tMail Code 7405) Washington, D.C. 20460 ou Ors ai. ic fi~ = R oe?

Oct 02 02 03:29p : Ralph Cooper 519 se1-s138 pz AR 2' 26 _ 1198 +"<3@8:x" NZ tron NUaNtIioTnEaDl HSeTaAltThEaSndENEnVvIiRroOnNmMenEtNalTEAfLfePctRsORTeEsCeaTrIcOhNLaAbGorEaNtoCrYy Reproductive Toxicology Division Research Triangle Park, NC 27711 MEMORANDUM October 2, 2002 SUBJECT: Control vs.

Norn Sissi ARQL6 -- 1210 suuyvorwssooon Report No.

TOXICITY TO TERRESTRIAL PLANTS ARR AGE -- 1368 TEST SUBSTANCE Identity: FPeCr-f9l5u.or(oo1c-tOancetsaunlfeosnuatlef;oamcnaiidyc,a1l,s1o,b2,e2.re3f,e3r4r,e4d,5t,o5a.s6.P6.F7O,7S.8o8r8- heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The test substance is a white powder.

AR226-1403 ; A RD a ng dE 3: BERGASECSOCEMRGATE orn AR 86 -- 403 PDraotme:s DeTeplt:Not 0U1m-GAMpari-l19U9s1er 1A1N:0D7EaRmSWP ANDERS: WP@1SCOCVMZECDCIL 1eHRGATE TL ubject: Request for CEG for Ammonium Perfluorcoctanoate in Drinking Water 5a1te:BER0G4A/S01/91--C1S1OC:02:15Berg, Any 2++M:ResWe.ndPi.ngAnndoetresoonf, 03Jr/.28/91 15126 JeBrJEoCuTr: dRiesqcuusessitonf,or ICEaGm froerquAemsmtoinnigumyouPertfoluaoskrootchetanAEoLateComimnitDtreienkitnog Water theabHlaisskhella CLEaGb GfuoirdeA,mmo"nSieutmtiPnegrfAlcucoerpotoacbtlaenoEaxtpeosuirneDrLiinmkiitsnsg"WaItesre.sunePer ohatwattehre; vaalnude80w%e wtiollairgetsiwniclel abeCEGbasfeodr Co-n820h%asofaltroetaadly ibenetnakeesatlalbolciastheedd onasnidaelrsothreequaectsutailnghetahlatth tehfefeccotmsm.itttoeer,esoirdesntosneasdpjeaccieanlt gforououpr fWraosmhiHnasgkteolnl, orkcsa.

TOXICITY TO AQUATIC PLANTS TEST SUBSTANCE Identity: NN--eEtthyFlOpSeErfAllucoorhooocltoarneFMs-u3l4f2o2n.ami(d1oe-tOhcatnaonle;sumlafoynaamlsiodeb,eNr-eeftehryrle-d to as 1.12.2.3,3,4,4,5,5,6.6,1.7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-, CAS # 1691-99-2) Remarks: Mjaimtietreidalwaitsearnsooflfu-bwilhiittyeo,fwtahixsymsaotleidrioaflupnrcohhairbiatcetderaizdeefdinpiutriivtey.

ARI2G-OHOY MICROBICS MICROTOX TOXICITY TEST TEST SUBSTANCE Identity: Perfluorooctanesulfonylamido(ethyl)acetate; may also be referred to as PFOSAA, FC-128 or as the major component of eFtCh-y1l2-7N-,[(FhCe-p1ta2d8e,caFfCl-u1or0o9o,ctFyCl)-s1u0l9fo-nXylo]r-,R1p9o0t4a.ssi(Gulmycsialnte,, N- CAS # 2991-517) Remarks: The test sample is FC-129 referred to by the test laboratory as R1904.

COVANCE> Sponsors: APME Ad-Hoc APFO Toxicology Working Group PROTOCOL Study Tite: 26-Week Capsule Toxicity Study with Ammonium Perfluorooctanoate (APFO) in Cynomolgus Monkeys Date: September 23, 1998 Performing Laboratory: Covance Laboratories Inc. 3301 Kinsman Boulevard Madison, Wisconsin 53704-2595 Laboratory Study Identification: Proposal No. w6806a Covance 6329-231 T- (%%9 02518 : -_-- Covance 6325231 Pag6e2.r Study 26-Week Capsule Toxicity Cynomolgus Monkeys Study with Ammonium Perfluorooctanoate (APFO) in Purpose To assess the effectofthe test material on critical enzyme levels, hormones, and other selected biochemical parameters `monkeys for at least 26 weeks when administered daily by capsule to.

UppRe FyI-0600-/378 ID DuPont Haskell Laboratory ue36293 Eleoniroat 7--0--.8--0----co Now0a 1000 AR 23G - 0573 May 25,2000 % Yt MU.r.S.ChEanrvliersonMm.enAtuaelr,PrDoitreeccttioorn Agency Office of Chemical PCoolnlturtoilonDiPvriesvieonntion & Toxics 401 M Street, N.W. -- Room 403 Dear Mr.

AR 226 0671.

AR 226. 0686 ACUTE TOXICITY TO FISH EST SUBSTANCE Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-185F. (1Octanesulfonic acid) (CAS # 2795-39-3) Remarks: The 3M production lot number was 1-2303.

AR 826 _0705" MICROBIAL INHIBITION (DEHYDROGENASE ACTIVITY) TEST SUBSTANCE Identity: Mr(ie1fx-etOrucrrteeadncetoosnutalasfionPniFinOcgSapc,eirdF,fCl-1u9,o15r,,o2o.oc2rt,a3an,se3s.ad4,ic4fo.om5np,a5ot,ne6e.wn6h.ti7c,oh7f.mF88Ca,-y82-0a1lsFo. be heptadecafluoro-, potassium salt, CAS # 2795-39-3) Rsaemmpalreksis: FC-T2h01eF3.

AR 826 - O7T#3 ACUTE TOXICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) EST SUBSTANCE Identity: A mixture containingperfiuorooctanesulfonate, `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 - 0767 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) IESTSUBSTANCE 0000 Identity: rMeifxetrurreedctoonatasinPiFnOgSp,erFfCl-u9o5ro,oocrtaansesaulcfoomnpatoen,ewnhtiocfhFmCa-y20a3lsCoF-bXe or FC-203CF. (1-Octanesulfonic acid) (CAS # 2795-39-3).