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3M SpecWty Materials 3M Center St.Paul.MN 55144- 1000 651733 1100 May "30,2000 Dr.CharlesAuer Director Chemical ControlDivision officeofPollutioPnreventionand Toxics United StatesEnvironmentalProtectioAngency 401 M StreetS,outhwest Room 403 EastTower (MailCode 7405) Washington,D.C. 20460 Re: Informationof PerfluorooctanSeulfonates And RelatedCompounds - UEIP Forms Dear Charlie: 3M isenclosingthecompleted"Use and Exposure InformationProfileso"r "LTEIPS" for compounds relatedtoperfluorooctanseulfonatesA.s explainedinmy coverlettetro theMay 18th submittalto EPA, we neededadditionatlimeto clarifiyndustriahlygieneand otherrelease informationto ensurethatthedataintheproflleissaccurateand placedinappropriatecontext.

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P. 1 INTERIM REPORT # 23 - Aua . b of Spdimet Samnlaa STUDY TITLE Analysis of Parfluorotautanesulfonate (PFBS), Perfluorohexariesuifonate (PFHS), and Pexfluorooctanesulfonate (PFOS) in Water, Soil.

7) OECD 473-OPPTS 870.5375, In Vitro Mammalian chromosome aberration (CHO cells), 0623-3110 7 7c18 5 SAN JTlZED DEC 0 9 2003 FINAL REPORT Primedica Redfield Test Article: Potassium Perfluorobutane Sulfonate SITEK Study NO.0623-3110 July 26, 2001 A7.

INTERIM REPORT #26 - Analvsis of Groundwater Samples STUDY TITLE Analysis of PerfluorooctanoicAcid (PFOA) in Water, Soil, Sediment, Fish, Clams, Vegetation, Small Mammal Liver and Small Mammal Serum Using LC/MS/MS for the 3M Decatur Monitoring Program DATA REOUIREMENTS EPA TSCA Good Laboratory Practice Standards 40 CFR 792 STUDY DIRECTOR Jaisimha Kesari P.E., DEE Weston Solutions, Inc. 1400 Weston Way West Chester, PA 19380 Phone: 610-701-3761 INTERIM REPORT COMPLETION DATE January 9,2007 PERFORMING LABORATORY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Company 3M Building 0236-01-B-10 St.

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