M 226 _ 077} ACUTE TOXICITY TO FISH (FATHEAD MINNOW) TEST SUBSTANCE____________________________________________ Identity: Mixture containing perfluorooctanesulfonate which may also be referred to as PFOS, FC-95, or as a component of FC-203FC. (1Octanesulfonic acid) (CAS # 2795-39-3).

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NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381-6613 Roberta.

di f>p M A6 - I & 1 S ' March 21, 2003 ToMUEW1:2P.aaS0Ars.0yhEEiPFnnae.gvsnDttino,roosnMymn, lamDviinaleCinnaCiktaoa2ld0Ae4Pv6r7eo04nt0euc5etM,ioNnWAgency From: Katie Smythe, on behalf of the Telomer Research Program Subject: Final Study Report - Submission to AR-226 ret==o>> ~7rXo03 "T--O3rOrnn Of-rj ro tOhne UbeShaElPfAofftohreiTncelluosmioenr RineAsedamrcihniPsrtoragtriavme R(TecRoPrd), 2th2e6:following study report is submitted to B[TiohicsotnecsetnwtraastipoenrfToersmt eodf 2u-spinegrfl2u-o(proearfllkuyolro(Coc=t4y-l1)6e)thEatnhoalno(Tl einstCsuarbpstance number K1518)] NtIIdonniorsdpettueirctso:tutlvrtyTeyid,bh(eJuiMsattphsEaaetrTunrsda.It)nyuTgadwehnydadersefsthoctpueorodnrtfhytdinetuwoactlarttaehsrnedespspbUloaoyrStntiKoswEonuParreosAudfpm.trbheoyevLtirhadeebepodoJrartatpotiaontnrhtyoeM-ETinRCngiPhslet.irsmyhTi.ohcaefMlEsTEcREoTPvnIaodglmuiadavyten,iooTTntrRafauPdnnedpdaeRntrhmedesiessastruicodhny TonheisorfetphoertitwemassmtheantttihoeneTdRiPn twhoeuMldasrcuhbm14it, t2o0E03PATRinPMLeatrtcehr 2o0f0In3.tent - Appendix 3 (p. 11) as N(CoBnIe)oufntdheeraTttSaCchAe.dNfioletshicnogntianinthiinsftorarmnsamtiiosnsicolnaiims TedSCasACCoBnfIi.dential Business Information ooooov

3 GLP10-01-02 Interim Report 12: Analysis for PFOS, PFHS and PFBS in Decatur, AL Off-Site Soils Collected September/October 2010 Study Title 3M Environmental Laboratory Analytical Protocol GLP-10-01-02: Analysis of Perfluorooctane Sulfonate (PFOS), Perfluorohexane Sulfonate (PFHS) and Perfluorobutane Sulfonate (PFBS) in Groundwater, Soil and Sediment for the 3M Decatur Phase 3 Site-Related Monitoring Program Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR Part 792 Study Director Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: 610-701-3761 Principle Analytical Investigator Cleston C.

G LP10-01-02; Interim Report 17 Analysis of P FBS, P FH S , and P FO S in Groundwater 1st Quarter Sampling - 2011 GLP10-01-02: Interim Report 17 - Analysis of PFBS.

3M 3M ENVIRONMENTAL LABORATORY PROJECT E05-0210; INTERIM REPORT #20 Interim Report #20: Analysis of Water Samples from Northern Alabama Potable Water Systems, February 2006 Study Title A n a lysis o f Per flu o r o b u ta n e s u lfo n a te (PFBS), Pe r flu o r o h e x a n e s u lfo n a te (PFHS), AND PERFLUOROOCTANESULFONATE (PFOS) IN WATER, SOIL, SEDIMENT, FISH, C la m s , V e g e t a t io n , S m all Ma m m a l Liver a n d S m all Ma m m a l S erum Usin g LC/MS/MS for the 3M Decatur Monitoring Program Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR 792 Author Susan T.

STLS E V E R N TRENT STL Chicago 2 4 1 7 Bond Street University Park, IL 6 0 4 66 Tel: 70 534 5200 Fax; 708 534 5211 www.stl-inc.com SEVERN TRENT LABORATORIES ANALYTICAL ..JOB N U M B E R : 2 3 3 5 0 6 W e e t o n S o 111tiiono ;y;;;ilRt.

Attachment to Letter to C.

TOXICITY TO AQUATIC INVERTABRATES (E.G., DAPHNIDS) ARil-OllO TEST SUBSTANCE Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks field: The test substance is a white powder of uncharacterized purity.

Attachments to Letter to C.

Internal Correspondence de: M.

HAZLETON LABORATORIES AMERICA, INC.

\f vasr ntrA AUEnpnvoitinerdeoynSmtaetnetsal Protection flRl%-COOO A<C1no7dm03Pm}uubnhiecaAtilofsnirs*, SdaeaSem, Environm ental News FOR RELEASE: TUESDAY, MAY 16,2000 Following negotiations between EPA and 3M, the company today announced that it will voluntarily phase out and End substitutes for pcrfluorooctanyl sulfonate (PFOS) chemistry used to produce a range of products, ipppnolecartlnesuinssdtttiieonanlgpltyhsinaopsmotehseeeooueaftnrtvaihnsirekdoirntdomSeheveouentmltco*hpahgnsaauhvrbedesaaltliitntshuetrtsaoe.nsnd3gbMtytheeyndeedaanetravn'scisryueopnntopdmlafieeocndcrtuttohomveEueplrPartAothedeiiunnlcodthniicouganmtteeoardnfmttahh.neaEditrPtahiAnneivsmsoeulacvplheptediosmrsptuisrcoeatdshluseacnactdrose.mcvopeuarlyndy's eliminat"eTdo,daanyd'sppuhbaliscehoeuatlathnnaonudntcheemeennvtirboyn3mMenwt willilelnbseurperothteacttfeudt,u"rseaeidxpEoPsAureAtdomthineissetrcahtoemr CicaarloslwMil,lBbreowner.