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.

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.

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.

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Toxicological Summary AR226-1746 PFOS Dietary Acute Northern Bobwhite Study 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, CAS# 2795-39-3 Remarks: The test substance is a white powder (3M lot #217).

UDR-TR-03-00044 Final Report - LaboratoryScale Thermal Degradation of Perfluoro-Octanyl Sulfonate and Related Substances June 2003 Final Report Laboratory-Scale Thermal Degradation of Perfluoro-Octanyl Sulfonate and Related Precursors This report covers the efforts performed by the University of Dayton Research Institute (UDRI), Environmental Science and Engineering Group, Dayton, OH 454690132, during the period from March 2001 to December 2002.

,, 3M Specialty Materials 3M Center St.

rSRiPsTaT6295, T-6889.1, T6316.4 AR226- 190 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY Title: Inter-Species ComparisonofMechanisms Fluorochemical Toxicity following Intraperitoneal dosing of perfluorooctanesulfonate (PFOS, T-6295) or ammonium perfluorooctanoate (APFO, T-6889) in Rats and Guinea Pigs and oral dosing of N-ethyl perfluorooctanesulfonamido ethanol (N-EtFOSE, T-6316) in Rats.

AR226-2192 ^/ Ta-Wei Fu 08/27/2001 11:34PM To: cc: Subject: Stephen J Gissy/AE/DuPont@DuPont, Oscar T Garza/AE/DuPont@DuPont, Fred M Lentz/SE/DuPont@DuPont, Robbin Banerjee/AE/DuPort@DuPont.

AR226-2204 F.

AR226-2357 /y Andrew S Hartten ""'"" 02/20/2004 10:46 AM To: cc: Subject: Mark Houlday/AE/DuPont@DuPont Re: Proposed Monitoring Locations-Need to Discuss Please print, thanksl -------------------- Forwarded by Andrew S Hartten/AE/DuPont on 02/20/2004 10:50 AM -------------------------- "Steve Williams" <steve.williams@epa.state.oh.us> on 02/19/2004 05:46:26 PM To: cc: Subject: <Libelo.laurence@epamail.epa.gov>, Andrew S Hartten/AE/DuPont@DuPont Re: Proposed Monitoring Locations-Need to Discuss Andrew and Laurence, Unfortunately, my schedule will not allow me to attend or tie in by phone to the meeting on February 26.

> AR226-2474 ^p-r-r-T-r--" - ^v-,?

AR226-2581 GIST MEETING March 5,2002 Dave Wafkins, chairperson, called the meeting to order at 9:15 am on March 5,2002, Dave welcomed members and went over housekeeping matters.

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