ARIX-OSfl ACTIVATED SLUDGE RESPIRATION INHIBITION TEST TEST SUBSTANCE Identity: Perfluorooctylsulfonate, didecyldimethylammonium salt; may also be referred to as Fluoroalkyl ammonium derivative. [1Decaminium, N-decyl-N,N-dimethyl-, salt with 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-1octanesulfonic acid (1:1), CAS # 251099-16-8] Remarks: The 3M production lot number was Lot 1.

A R 2% -0 % \ Argus Research Laboratories, Inc. 905 Sheehy Drive, Building A Horsham, Pennsylvania 19044 T: (215) 443-8710 F: (215) 443-6587 PROTOCOL 418-008 SPONSOR'S STUDY NUMBER: 6295.9 STUDY TITLE: Combined Oral (Gavage) Fertility, Developmental and Perinatal/Postnatal Reproduction Toxicity Study of PFOS in Rats.

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3M Environmental Laboratory Results from Analyses of Soil and Groundwater Samples From the E.

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.