Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800/Cincinnati, OH 45202-3957 /Tel: 513,381.2838 /Fax: 513.381.0205 / www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing Robert A.

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~James Kelley - RE: 3M Cotta.ge Grove/Call from Bob Paschke Lg From: bo fini To: Be am Date: ee cottonBobPasate Subject: "Douglas, David" <David.Douglas@state.mn.us> "Kriens, Don" <Don.Kriens@state.mn.us> 7/23/04 11:23AM RE: 3M Cottage Grove/Call from Bob Paschke on, arkfor urvay clo eatin hess.

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Eien [BEPAR2TRENNTd 0rEATTH] HealHHh aeR~listhhkRRAiisssskkesLLsiimmmeint~tssffUoonrritGG'rrEoonuuvnniddrwoantameteernrt22a00l0088HeRRauulltleeh RRDeeivvviiisssiiooonnn He~thRisk Assessment Unit, Environmen6t5a1l.H2660e155a.1h15-h227D009117iv-44Tis88Di99oD99n 651-201-5797TDD NNhoiottteep:::W W/a/atwtewewrrhggeuuaiilddtaahnn.ccseetffaootrrett.hhmiissncc.hhueesmm/idicciaavllsww/aeassh/uurppiddsaaktt/eeddguiiinndMManaacyye22/h00gi11wm77/.l.t#PaPpllbfeeloaaesssee sseeWPeeebublicDaatet: i5/4o/20n09 http://www.health.state.mn.us/divs/eh/risk/guidance/gw/table.html#pfos Web Publication Date: 5/4/2009 CChheemmicicaall NNaammee:: PPeerrfflluuoorrooooccttaannee SSuullffoonnaattee SSyynnoonnyymm:: PPFFOOSS CCAASS:: 11776633--2233--11 ((aacciidd)) 2299008811--5566--99 ((aammmmoonniiuumm ssaalltt)) 7700222255--1144--88 ((ddiieetthhaannoollaammiinnee ssaalltt)) 22779955--3399--33 ((ppoottaassssiiuumm ssaalltt)) 2299445577--7722--55 ((lliiththiuiumm ssaalltt)) StSieemrreuumtmheccooinnnccfeeonnrtmtrraaatttiiiooonnnssneaacppeppseesaaarrryttootobbeeesttthhieemabbteeessttleddsoosssteeh--mamenetctrrhiirccoffnooirrceedxxottsrreaasppoo(lliaat.tiinnagcgutttooe,hhsuuhmmoarantns-s.t.eAArtmt ttohhree pprreesseenntt setsixuumibbscecthshtrhrrooeenngiiianccr)f)odttirhhmnaagtatttwwioooionuculolnkddeicrnreeeessstuusilaclttrsyiinintnoaaeeaggsriitvlviyeemnnlaissfteeee.rrluTeuhmsmesrtccehoofannoncrceeecn,nhttarrrocaauntttiiioeco,nndsoiihsssoennrsoottt(-itaa.eevv.ar,aimiallacaabubnltldeee.,.ssAAuhdbddocdihrittrt-iiotooennnriamacll HuouRnnrcLceesrrttwaaiiilnnlttyy not be derived at this time. exists regarding toxicokinetics not be derived at this time.

373 7 ff ORIGINAL COVANCE ARIRE- 0790 Sponsor: 3M St.

"off AR 226 The Society of the Plastics Industry, Inc.

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Dyneon Sanitized Letter ARBAE_ IRT7O April 8,2003 AR A `The Honorable Charles M.

Telomer Research Program AR226-1430 Report Title: 1-Decanol, 3,3,4,4,5,5,6,6,7,7,8,8,9,9,10,10,10-heptadecafluoroEffects on the Development of Caenorhabditis elegans in a Water-Sediment System RECEIVED OPPT NCIC 2003 July 18 1:09PM Author(s): Gunda Winkelmann Contractor: Dr.

BACK TO MAIN 3M EnvironmentalLaboratory Report No.E00-2192 Study Tit/e Screening Studies on the Aqueous Photolytic Degradationof PerfluorooctanoicAcid (PFOA) Data Requirement Consistent With: OPPTS: 835.5270 "Indirect Photolysis Screening Test" -and- OECD Draft Document "Phototransformation of Chemicals in Water - Direct and Indirect Photolysis", August 2000 Author Thomas L.

BACK TO MAIN BIODEGRADATION (Aerobic Soil and Sediment Cultures) 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: The 3M production lot number was 217 (TN-A-2130).

TOXICITY TO AQUATIC PLANTS (Duckweed, Lemna gibba G3) 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: Sample obtained from 3M production lot number 217.

BACK TO MAIN TOXICITY TO AQUATIC PLANTS (Duckweed, Lemna gibba G3) 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: Sample obtained from 3M production lot number 217.