AtL22rtf(>8 Bladder Cancer in Perfluorooctanesulfonyl Fluoride Manufacturing Workers Final Report Bruce H.

A222&- Reduction of Perfluorooctanoic Acid (PFOA), Precursors, and Related Impurity Levels in Fluorotelomer Intermediates and Finished Products Presentation given to US EPA contained 48 total charts.

HASKELL LABORATORY FOR TOXICOLOGY AND INDUSTRIAL MEDICINE / cc: G.

AR226-2096 Test R esulti Sample Date Range Concentration Range Action Level Industrial Hygiene 1/1/96 1201/96 100% Sample Dt Sample ff Duration Type Employee Name BTO: OS TEFLON LOC: 113 P/S-SHIFT MECHANIC (58MD) 1/1006 22569 330 P 8/26/96 24210 360 P Pets Chemical S8MD 08/FC-143 58MD C-8/FC-143 Cons Unit Percent 0.019 MPB 0.08 MPB 04% 5.4% BTO: 08 TEFLON t o c ; 70S P/S - FINE POWDER PACKOUT (08PJ) 3/1106 23060 360 P 12/996 24677 420 P 08PJ 08/F 0143 06PJ 08/FC-143 0.07 MPB 0.026 MPB 125% 4.6% BTO: 06 TEFLON LOC: 731 A/S - INSIDE FJ>.

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AR226-2349 U.S.

AR226-2392 \ V y- Du Pon t I N T E R O F F I C E MEMORANDUM Dates From* Dept s T el No 12-May-1987 03s06pm EST TONY PLAYTIS PLAYTIS TEFTECH 2775 T O s ROGER ZIPFEL ( ZIPFEL ) CCs JOHN CRUM ( CRUM ) Subjects C8 In Water A t t ached is a copy of the analytical report for our five water samples, which are identified as follows

AR226-2419 * cihrttki/ /6i*l4s {0 *ir-?

AR226-2761 LIVER STUDY OF WASHINGTON WORKS EMPLOYEES EXPOSED TO C-8: RESULTS OF BLOOD BIOCHEMISTRY TESTING WILLIAM E.

AR226-2817 DuPont-15372 TRADE SECRET Study Title H-24921, H-26313, and H-26225: Evaluation of the Interference of the Test Substance in the Analysis of Rat Serum Lipids Author: Denise Hoban, B.A, MLT (ASCP) Study Completed on: October 13,2004 Testing Facility: E.I. du Pont de Nemours and Company HaskellSMLaboratory for Health and Environmental Sciences Elkton Road, P.O.

AR226-2861 > E.

AR226-2887 kl E.

A v/JA r/u X V/1NX UOt UlNiii AR226-2963 Du Pont HLO 433-91 Study Title Skir^jensltization Test v i t h l H H I H R i n Guinea Pigs Study Completed On August 14, 1991 Contracting Laboratory Pharmakon Research International, Inc.

t4/U6_ 3<337 419 H-24516: Subchronic Toxicity 90-Day Gavage Study in Rats with One-Generation Reproduction Evaluations TRADE SECRET Study Title H-24516: Subchronic Toxicity 90-Day Gavage Study in Rats with One-Generation Reproduction Evaluations Revision No. 1 Volume 4 o f 5 3X37 Revised Page DuPont-5386 Test Guidelines: U.S.

AR226-3337 Migration QtAgEQ frQjn^IFE It was decided to develop a new method of extraction of APFO from PTFE samples (extraction during 8 h at reflux with 9 5 % ethanol at pH - 10 on finely ground material) as well as a new method of detection of APFO using capillary gas chromatography.