2195 Front Street Loaan,OH43138 ONBER& State of Ohio Envirnitirtcntal PretctHun Agency Southeast District Office TELE: (740) 385-aSQI PAX; (740) 385.64BO AR226-2608 Bob Taft, Bovsrror Christopher Jones, DIrBctor July 8,2002 Mr.

AR226-3158 CONFIDENTIAL SPONSOR ElfAtochemSA Cours Michelet La Defense 10 92091 Paris-la-Defense CEDEX France TEST SUBSTANCE STUDY TITLE SKIN SENSmZATION TEST IN GUINEA-PIGS (Maximization method ofMagnusson and Kligman) STUDY DIRECTOR Xavier Manciaux STUDY COMPLETION DATE 28 August 2000 TEST FACILITY err Centre International de Toxicologie BP 563 - 27005 Evreux - France IFM Recherche wrai SM.C.W oe s M am f SIECC SOCMl :HKStir 27003 EWEUX Company Sanitized.

AR226-3210 TRADE SECRET Study Title H-23925: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Supplement No. 1 Laboratory Project ID: DuPont-2921 AUTHOR: Carol Finlay, B.A.

AR226-1741 Toxicological Summary PFOS Dietary Chronic Definitive Reproductive Study: Mallard 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.

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3M MEDICAL DEPARTMANT CORPORATE TOXICOLOGY To: John Butenhoff Andrew Seacat From: Marvin Case Date: 5 April 2000 Subject: Liver Slide Review conclusons re 1 have completed the PFOS chronic mstyudmyi.crMosycofpiincdirnegvsiaerweofltishteed,lbivyergrsoeucpt,ioonns of the 14-week attached pages.

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ok PP AR226_ 113] REVISED DRAFT HAZARD ASSESSMENT OF PERFLUOROOCTANOIC ACID AND ITS SALTS U.S.

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STUDY TITLE Extraction of Potassium Perfluorooctanesulfonate from Quail Serum and Quail Liver for Analysis Using HPLC-ElectrosprayMass Spectrometry DATA REQUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher STUDY COMPLETED ON September 06,2001 -F'ERFORMING LABORATORY / TESTING FACILITY Centre Analytical Laboratories, Inc.

ARR 1843 ' i APILOTREPRODUCTsIoOsN; STUDYWITHTHE MALLARD FINALREPORT WILDLIFE INTERNATIONAL, LTD PROJECT NUMBER: 434105 MLAB REQUESTNO.UZ3 FRA Guten714 ' AUTHORS:RSaeTaronmmPo.BnGdealLvlaaVghanesrkoven STUDYINTIATIONDATE: erry 28,200 STUDY COMPLETION DATE: December 15,2003 Submitto Envi5ra3o5vmBCoeoAnpotvrLsiaeonbor Sepa,Mims $5106 Wildlife International, Ltd.

_------- sm ee AR226-194T STUDY TITLE Exiacion of PoftoarsAsniaulmysPiesfUlsuicnrgoHoPtLaCns.uEfloenaotseprfaoymMMaaslslaSrpdcSceuroummeannd Millard ivr DATA REQUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher STUDY COMPLETED ON September 06,2001 PERFORMINGLABORATORY [TESTING FACILITY Centre AnaSlyu3t0ti4ca8CloRlLleaesbgoee,raactPhoAriDer1si6,v8eI0n1c.