O R IG IN A L 3M M edical Departm ent Study: T-6295.7 226- o?

3h f f r figlZG- lO f fe 'z.o p .o o o o o 1 3 Ce: S.

NO RTHERN KEN TU CKY OFFICE SU IT E 340 1717 D IXIE H IG H W A Y CO VINGTO N, K E N T U C K Y 41011-4704 606-331-2938 513-381-2838 FAX. 513-381-6613 Robert a .

Dyneon Sanitized Letter - / * * < * _ l7 April 8, 2003 3 2 (> The Honorable Charles M.

\ Iff 3M General Offices 3M Center St.

Maa& - IM3 8 TSCA NCIC Notification Form for CBI Documents Docket Number:_____ R H . ____________ Document Control Number: ^ 3 c3 o o o d o Document Date: ___________ Document Type: D & c f r F ________________ fC&CO=*->> <c_z O "O ymo CO --imi'" w V :rc -D O m ZK 0 o TO X" ro Th e d o c u m e n t r e f e r e n c e d a b o v e is c la im e d a s c o n fid e n tia l b u s in e s s in fo r m a tio n (CBI) u n d e r Se c t io n 14 o f the To x ic S u b s tan c es C o n tro l A c t (TSCA).

TCZOOO jL-ttI - t t U V DRY RUN LANDFILL: C-8 HISTORY SOWARY O SUPERNATE POND SOIL DISPOSAL: - 7100 TONS OP SOIL CONTAINING ~ 85 PPM C-8 DISPOSED OF NEAR THE BOTTOM OF THE LANDFILL 11/88.

AfiASlG - iS'Ol DOihviiiosniEonPtAoefrA-iroPofllfuiticoneCocntoroml munication to: from: subject: date : Chris Jones Bob Hodanbosi, DAPC October 29, 2002 letter DuPont, West Virginia C8 December 3, 2002 We are preparing a letter for your signature in response to several et-letters written by Attorney Robert A Bilott (Taft, (Stettinus & Hollister LLP) on behalf of Ohio citizens impacted by air emissions of C8 from the DuPont facility located in West Virginia.

,, DuPontFluoroproducts DuPont Fluoroproducts Chestnut Run Plaza P.

kZtb-f& l'J PERSONAL AND CONFIDENTIAL CC: J.

| 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.