AR226-2248 Thompson Colllns WatMns Smith Name Concentrations are from the deposition modeling runs, and include wet and dry depletion due to deposition Coordinates Paniculate Deposition (g/m'/yr) Vapor Deposition (g/m'/yr) Total Deposition (fl/m'/vr) 445213E 4346090N 443141E 4345753N 4432236 4345847N 443254E 434588SN 0,00098 0.00179 0.00193 0.00186 0.00008 0.00021 0.00019 0.00018 0.00106 0.00200 0.00212 0.00204 (I Particulate Vapor Total Concentration Concentration Concentration (ua/rn3)____(uaftn3)____(ug/nr'l 0.02000 0.03217 0.05217 0.03752 0.05854 0.09606 0.03665 0.05695 0.09360 0.03554 0.055B7 0.09141

AR226-2381 C8 EMVIROKMEMTAL STATUS History "Industrial Hygiene Engineering Changes Protective Equipment Air Monitoring Blood.

AR226-2483 July 16, 2001 CERTIFIED MAILRETURN RECEIPT REQUESTED Ms.

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.

DuPont Engineering July 22,2002 AR226-2590 OuPontEnginoBring BarieyMillB8!.

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Copies to: E, I. du ?

FOR DU FONT USE OSLY Copies t AR226-2897 E* I* du Font de Neoours and Company Haskell Laboratory for Toxicology and Industrial Medicine Elkton Road, Newark, Delaware 19711 HASKELL LABORATORY REPORT NO. 256-81 MR SO Haskell So. 14.008 Other Codes Study Initi&ced/Completed 4/6/81 - 4/20/81------ Material S Lyner Products Department Experimental Station EYE IRRITATION TEST IS RABBITS Procedure; One-tenth milliliter (71 og) of solid test material was placed into the right conjunctlval sac > each of 2 male New Zealand White rabbits.

AR226-2941 FOR OU PONT USE ONLY Du Pont HLR 385-89 Study Title Eye Irritation Test withUUf 1n Rabbits Author Dolores E.

AR226-3117 CONFIDENTIAL DPT441/984973 ALGAL GROWTH INHIBITION ASSAY Sponsor DuPont Speciality Chemicals, Jackson Laboratory, Chambers Works, Deepwater, NJ 08023, USA.

AR226-3139 CONFIDENTIAL SPONSOR ElfAtochemS.A.

AR226-3185 DuPont-4739 TRADE SECRET Study Title H-24616: Subchronic Toxicity 90-Day Gavage Study in Rats with One-Generation Reproduction Evaluations Volume 2 of 5 Laboratory Project ID: DuPont-4739 TEST GUIDELINES: U.S.

BIOACCUMULATION TEST SUBSTANCE Identity:N-EthylperfluorooctanesIufonamide;may also be referredto as U1464, ETFOSA, ETPOSA, F-6309, or FX-12. (1Octanesulfonamide,1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-N-ethylC-A,S # 4151-50-2) Remarks: Materialisa white solidofuncharacterizedpurity.

HAZLC%CN LAEIORATORIES AfvlERICA.

Two Year Oral (Diet)Toxicitv/ Carcino.eeniciSttvudv of FluorochemicalFM-3924 in Rats Riker Experiment No. 0281 CRO01 2 Review bv Dr WilliamH Butler At therecuestof 3M CorporateToxicoloev.I have reviewed the above studv with specific regardto the evidenceof carcinogenicitoyf FM-3924.