K0a3r08e/n2L0a0m10o8n:30 AM Pwoo Subject ProdofuPRcOStDeriivaotivnes 2 masantoro@mimm com on 030212001 05:46:52 PM To: ChaesAuedDGIUSEPAIS@EPA Subject ProducotfiPFoOnS Derivatives.

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CoumTOR KENT 14708 SEA, Roo(isSniegmriseAen.arLm.co6omr fd TAFT, STETTINIUS & HOLLISTER LL 1800 FIRSTAR TOWER 425 WALNUT STREET CINCINNATI, OHIO 45202-3957 aned dtal ra ol inion Fa5x13s.i38a1s.a28r3a8zs tats eerie ARA26 -- 1/80 May 7,2002 TELECOPY CWhersitsNVeirgglienyi,a EDseqp.artment Of Environmental Protection Office OfLegal Services 1356 Hansford Street Charleston, WV 25301 Pam Nixon Environmental Advocate West Virginia Department of Environmental Protection 1356 Hansford Street Charleston, WV 25301 James Becker, M.D.

ARR EG -- 1828 Final Report on A Pharmacokinetic Study of Potassium Perfluorooctanoate in the Cynomolgus Monkey ~~T-757:!

ARQR6 -- 136] A Pharmacokinetic Study of Potassium Perfluorohexanesulfonate in the Cynomolgus Monkey Southern Research Institute Study ID: 9921.5 April 22, 2003 001599 Final Report on A Pharmacokinetic Study of Potassium Perfluorohexanesulfonate in the Cynomolgus Monkey To: 3M Corporation P.O.

AR226 _ 0636 Barbara Loczynekd os052000 0307 To: Karen LannoniDCAUSEPAIUSGEPA, Mary DominaiiDCIUSEPEAPUAS o Sublet tolown oporurochenmicals meting on Api 28 %gson re Forwarded by Barbara LecaynskIDGIUSEPAIUS on 05052000 03:31 PM VBS womenC1 Cranes aver 2 s oEXF GB083000 1203 PM >2 To dbPocobhrsalukuseDusGmtIa@UnmS@mEumPcoAooSmmG.EOPsAc.arBHoeamrasnLdoecuoDGyUmSsEkPIADUUSS@EESPAAS,BNEoPlAPallDUSEPAUS@EPA, Robert Sublet folows 1 peruarochemcals meeing on A 25 Dear Bil and Dan, 3M, Wanedfootuhnrd ptheerfmoereotcihngemviecraysh. eSteveirnaflurptihenrsingcaoumreuunpdeirnstthaendmienegtionfgtdhissciutsuastiioonnawnitdh|rweogualrdd tiokePFoOrSeay our thinking n mai form.

(f wontons 7s cansormpenseAssas emo.kea.com ubiect cx Seotengard a 0825100 09:07 AM Safest Seok ivkommient KEATBFRIOAT681808 0008 B07 Dear Mrs Brower, Refering to the EPA press release of May.16.2000 concerning 3M and their Scotchgard-product;based-on the"ehemicat PROSTM etftohresetnhadtotfhtehEePpArewsassreplleaansnei,ntghetorecoisntaacmtenftorieoingnofgtohveerrV"omleunnttsaaryndphoathseerocuhteomficPaFlOmSanaunfdacrieulraetreds cthoegmeitcaslusp.port foar iAstauhpormoedufcutrsniwsihtihngstcaoinm-praenpye,llwntevheaavtemesnotmeofutphheoclosvteerred furefaabrticesd, wOifthcohuers3e,Wwberaanrde, nboowtpfhoarstehienNgoorutthtAhmaesreiwchaincmhawrekreet and for other sales countries (30 in ota), SBSiuWm.tilwIaner piwanorfuiolcrdumlabatreioavnnefrayrlotimenrtonetarhteiesvrteecdpormifoptdahunecitEewPsiAahshwayhsoiucmharenscaoegmiveeeddofffoorugoremt prodice are treated is the Dupont Teflon-oased finish hIneyaolutrecffpecitos,ofdtoiysocuhceomnisciadlecratnatreahsesonnaytlryobnemeexpretcstaendldto De of a similar nature as the PFOS?

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Description ENCLOSURE 4 of the 3M Decatur Inactive Landfill Containment z2s z-u Structug -4 2"x "13x3rx;-j --3-,~(;.--` ".".

Sponsor: APME Ad-Hoc APFO Toxicology Working Group FINAL REPORT Study Title: 4-Week Capsule Toxicity Study with Ammonium Perfluorooctanoate (APFO) in Cynomolgus Monkeys Author: Peter J.

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Toxicological Summary PFOS Dietary Chronic Definitive Reproductive Study: Northern Bobwhite Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro, potassium salt.

A-- AR236- (544 STUDYTITLE Extactonof Psassum Perflcrocuncslfose fom gg Membrane, Albumen, and `Yolk for Analysis Using HPLC-Electrospray/Mass Spectrometry DATAREQUIREMENTS Analytical Method Requirements STUDYDIRECTOR - Sean Gallagher STUDYCOMPLETEDON Sepimber 06,2001 = PERFORMINGLABORATORY/ TESTINGFACILITY Conte Ans0o48nRLebsoearrscrhireis,veIn.

AR226-2555 Robert F Pinchot 05/11/2000 07:31 AM To: co: Subject: David M Rurak/AE/DuPont@DuPont, Michael E McCord/ABDuPontQOuPont, Robert J Cavanaugn/DuPontQDuPont, Luk D'Haenens/EUR/DuPontOuPont, Roger J 21pfel/AE/DuPont@DuPont, Anthony J playtis/CL/DuPontDuPont, Arie sl Vermeulen/EUR/DuPont@DuPont, Gerald L Kennedy/AE/DuPont<aDuPont, William R Berti/AE/DuPont@DuPont, John Gannon/AE/DuPontQDuPont, Robert L Rltchey/CUOuPont@OuPort, Andrew 8 HarttBn/A6/DuPont@DuPont, Susan S Mileti/DuPont@DuPont Andrea V Malinowski/A/DuPont@DuPont, Maurice Astorga/AE/DuPont@DuPont, Richard J Angiullo/AE/DuPontQDuPont, Bernard J Reilly/AE/DuPontQOuPont, Gary W Jepson/AE/DuPont@DuPont PFOA EPA Request As many of you know, the Office of Pollution Prevention and Toxics in the US EPA has requested that DuPont supply a large amount of information on Pertluorooctanoate (PFOA or C-8).

Larry R.