> AR226-2474 ^p-r-r-T-r--" - ^v-,?

DuPont Engineering AR226-2575 OuPontEntineering Barley Mill Plaza-Bidg. 27 Lincaster Pike SiRtt. 141 Wilininston, DE 19806 January 11,2002 DavidP.Watkms Division of Water Resources 1201 Greenbrier Street Charleston, West Virginia 25311-1088 RE; Little Hooking Sampling Results Dear Mr.

AR226-2689 11 AR226-2689 Telomer Research Program ACC ASAH CLASS COMPOW 3S^ Clariant 8-2 Telomer B Alcohol Biodegradation Research Scope and Rationale The Telomer Research Program (TRP)1 is investigating the biodegradation potential and pathway(s) of 8-2 Telomer B Alcohol (CgFnC^CHbOH; CAS #678-39-7), a primary fluorotelomer intermediate.

AR226-2773 ^ ^-^ Bio/dynamicsInc.

AR226-2841 <^ Material Tested: Copies ton E.

^ IFREB Institut Fran^ais de Recherches et Essais Biologiques Centre de Lyon / Les Oncins AR226-2856 IFREB - R 705221 EXEMPLAIRE N^) PL 50 PAR VOIE ORALE CHEZ LE RAT TESTS DE TOLERANCE CHEZ LE Lfl.PIN - INDICE D'IRRITATION OCULAIRE - INDICE D'IRRITATION PRIMAIRE CUTANEE Company SanHized.

AR226-2876 Material Tested ..a.s-'.'

AR226-2912 -y^-f '"'"^^S^^S?

AR226-3121 I *j ~Vl^l'K9^ Huntingdon . - .-._, f^_ ^^........^^.-^.-..s^.^^^^^^^^'^^^'^^^?

AR226-3151 DuPont-3906 TRADE SECRET Study Title H-24256: Bacterial Reverse Mutation Test in Salmonella typhimurium and Escherichia coli Laboratory Project ID: DuPont-3906 TEST GUIDELINES: U.S.

SPONSOR ElfAtochemSA Cours Michelet La Defense 10 92091 Paris-la-Defense CEDEX France AR226-3172 TEST SUBSTANCE ^STUIfTTITLEr SKIN SENSITIZATION TEST IN GUINEA PIGS (Maximization method ofMagnusson and Kligman) STUDY DIRECTOR Xavier Manciaux STUDY COMPLETION DATE 14 December 2000 TESTFACILITY err Centre International de Toxicologie BP 563 - 27005 Evreux - France IFM Recherche SM.C.AU wn'/u.

MR rae - 3220 402 | | | --- --_ ARaz - 3220 Duwreonsw0 TRADE SECRET Study Tite H-24768: Subchronic Toxicity 90-Day Gavage Study in Rats `with One-Generation Reproduction Evaluations Volume 2f 5 Laboratory Project ID: DuPont-5990 "TEST GUIDELINES: U.S.

ARRR6 _ 3275 457 -_ --_ `TRADE SECRET Ma26~ 327 oDuwroen ssess Study Title H-24678: Two-Week Inhalation Toxicity Study in Male Rats Laboratory Project ID: DuPont-8685 AUTHOR: David P.

J09M -Volume41,Number 9,SePtember1999 799 Serum PerfluorooctaneSulfonateand Hepatic 90 and Lipid CII.McalChemistry Tests "n fluorochemical Production Employees Geary W.

.