| Andrew S Hartten 11 /0r2002 08:55 AM f To: Vic E KleInfelter/AE/DuPont@DuPont cc: Seiichi Tanaka/PO/DuPont@DuPont.

PFOS 3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May, 2004 TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE Click on Study Title to View Report Perfluorooctanesulfonate PAGE 1, 2 Summary Environmental and Health Assessment of Perfluorooctane Sulfonic Acid and Its Salts, 3M, August 20, 2003.

Enclosure 2 raceAnalyFiteilcdaSelrvices Divisum Pace Analytical Services, Inc. 1700 Elm Street, Suite 200 Minneapolis, MN 55414 Phone: 612.607.1700 Fax: 612.607.6444 3M 3M Multi-city Food Study DecePmrobjeecr t4D-8at,e:2000 Prepared by: Pace Analytical Services, Inc.

3M Study Title A n a l y s is o f E n d o g e n o u s F l u o r o c h e m ic a l s in N o r m a l P o o l e d H u m a n S e r u m a n d P lasma Data Requirement 40 CFR Part 792 Author Mark E.

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 45469OX32, during the period from March 2001 to December 2002.

/(R -- 0 6 5 If* 0B8a/r1b7a/r2a0L0e0c0z6y:n4s5kiPM cTScou::bject: Karen Lannon/DC/USEPA/US@EPA request for information on perfluorochemicals ------------------------Forwarded by Barbara Leczynski/DC/USEPA/US on 08/17/2000 06:34 PM ^ 0C4h/a1r9le/2s0A0u0e0r8:42 AM Tcco:: OgLesercacalzdry.Hnl.ksekernin/DanneCdd/eUyz@S/DEuCPsaA/U.

A R 2 2 6 -1 9 5 4 Bladder Cancer in Perfluorooctanesulfonyl Fluoride Manufacturing Workers Final Report to ---*<* . t 13C :"n RF.TE!

AR226-2312 Charles J Zarzecki ' 03/13/2003 03:48 PM To: Catherine A Barton/AE/DuPont cc: Subject: Fayetteville Results Cathie, I ran all 5 years ('95 - '99) for Fayetteville using the updated information.

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AR226-3173 TRADESECRET Study Title H-24616: Bacterial Reverse M utation Test Authors Valentine O.

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3M 3M ENVIRONMENTAL LABORATORY PROJECT E05-0210; INTERIM REPORT #20 Interim Report #20: Analysis of Water Samples from Northern Alabama Potable Water Systems, February 2006 Study Title A n a lysis o f Per flu o r o b u ta n e s u lfo n a te (PFBS), Pe r flu o r o h e x a n e s u lfo n a te (PFHS), AND PERFLUOROOCTANESULFONATE (PFOS) IN WATER, SOIL, SEDIMENT, FISH, C la m s , V e g e t a t io n , S m all Ma m m a l Liver a n d S m all Ma m m a l S erum Usin g LC/MS/MS for the 3M Decatur Monitoring Program Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR 792 Author Susan T.