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.

Wildlife International Ltd.____________ - 1- Project Number 454A-107 PFOS: A FLOW -THROUGH LIFE-CYCLE TOXICITY TEST WITH THE SALTWATER MYSID (Mysidopsis bahia) ADDENDUM WILDLIFE INTERNATIONAL, LTD.

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.

3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May, 2004 INDEX OF 3M'S 2002-2004 AR-226 DOCKET SUBMISSIONS BY DATE Back to Menu OCTOBER 2002 Click on Study Title to View Report October 30, 2002 Notice of Preliminary Study Results of Study Regarding Oral (Gavage) Combined Repeated Dose Toxicity with the Reproductive/Developmental Toxicity Screening Test of Perfluorohexane Sulfonate Potassium Salt (PFHS).

3 3M Specialty Materials 3M Center St.

A Pharmacokinetic Study of Potassium Perfluorohexanesulfonate in the Cynomolgus Monkey Southern Research Institute Study ID: 9921.5 April 22, 2003 Final Report on A Pharmacokinetic Study of Potassium Perfluorohexanesulfonate in the Cynomolgus Monkey To: 3M Corporation P.O.

BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE October 1987 C lick on S tudy Title to V iew R eport October 29, 1987 " Two-Year Toxicity/Carcinogenicity Study of Fluorochemical FC-143 [PFOA] in Rats," Review letter from Greg Sykes (Haskell Laboratory for Toxicology and Industrial Medicine) to Charles Reinhardt, October 29, 1987.

R ep ort T itle Evaluation of the Northwest Bioanalytical Method V alidation Reports fo r PFOS and Related Analytes in Human Serum or Plasma in Meeting the Requirements o f the - _________EDA BioanalyticaLMethod Validation QAI Report No. 405-503 Data R equirem ent Full Validation o f Bioanalytical Method Author Nancy Benson Philippe Ourisson Quality Associates, Inc. 9017 Red Branch Road, Suite 102 Columbia, MD 21045 Sponsor 3M Environmental Laboratories 935 Bush Avenue Bldg 2-3E-09 St Paul, MN 55106 R eport Date December 31,2001 Report Number QAI 405-503 Number o f Pages 26 TABLE OF CONTENTS QAI Report No. 405-503 I.

0 //5A R M - I BIOACCUMULATION TEST SUBSTANCE Identity: [2-(N-Ethylperfluorooctanesulfonamido) ethyl acrylate: may also be referred to as B1228, D-1, EtFOSEA, or FX-13. (2-Propenoic acid, 2[ethyl[heptadecafluorooctyl)sulfonyl]amino]ethyl ester, CAS # 423-825) Remarks: Material is an amber solid.

flRUG'OHSO PHOTODEGRADATION TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, PFO, FC116, FC-126, FC-169, or FC-143.

BIODEGRADATION (BOD/COD) TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC116, FC-126, FC-169, or FC-143.

A R X & - 0 5 (0 ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA ammonium salt, Ammonium perfluorooctanoate, FC116, FC-126, FC-169, or FC-143.

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AR226-2252 Mark H.

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