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AR226-2625 13 PMD AR226-2625 DuPont Engineering Barley Mill Plaza-BIdg. 27 4417 Lancaster Pike Wilmington.DE 19805 October 19,2004 Mr.ToddKelleher Environmental Supervisor Chemical Monitoring Compliance Unit Ohio Environmental Protection Agency Columbus, Ohio 43216-1049 Earnhart Hills Public Water System Circleville, Ohio Dear Mr.

AR226-2693 15 AR226-2693 DuPont EMSE Report No. 92-02 Study Title AQUEOUS STABILITY OF 8-2 TELOMER B ALCOHOL AS A FUNCTION OF PH Test Guideline OECD (1981).

AR226-2702 24 AR226-2702 TORONTO WORKSHOP MATERIALS September 13-14,2004 Atmospheric Chemistry of Fluorotelomer Alcohols (Part 2) Robert Waterland DuPont Engineering Research & Technol Wilmington, DE Outline do we for a initial gas phase reaction kinetics m photolysis of FTOHs do we a role of HOx and N0^ photolysis of fluoroaldehydes we heterogeneous chemistry know?

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AR226-3025 TRADE SECRET Study Title EVALUATIONS THE BIODEG^ADABILITY OF USING THE CLOSED BOTTLE TEST Author John T.

AR226-3089 HASKELL LABORATORY FOR TOXICOLOGY AND INDUSTRIAL MEDICINE H-23005: STATIC, ACUTE 48-HOUR SCREENING TEST TO Daphnia magna PURPOSE: This is a rangefinding study designed to provide an estimate of aquatic toxicity using fixed test concentrations and data measurements at predetermined intervals.

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AR age - 3270 452 ARZ26 - 3270 Vapor Pressure Determination:jo-- ] ~~ DUPONT REPORT 12735 |en---- VAPOR PRESSURE Test Guidelines) Authors Mary A.

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BOD/COD resultstorFC-99 (DEA saltotPFOS) BIODEGRADATION TEST SUBSTANCE Identity:PerfluorooctanesulfonatDeE,A salt;may alsobe referredto as PFOS DEA salt,FC-99, or 3M Sample No. 2. (1-Octanesulfonic acid,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafcloumoprdo.-, with2,2'-iminobis[ethan(o1l:]1)C.AS # 70225-14-8) Remarks: Testsample isa mixtureofthe testsubstanceinwater (approximately25% testsubstance and 75% water).Allvaluesreported relatetothismixture.No calculationwsere made to adjustforthe actual concentrationofthe testsubstance inthetestsample.