BACK BIODEGRADATION TEST SUBSTANCE Identity: Remarks: Perfluorooctanoic acid, ammonium salt; may also be referred to as PFOA, PFOA ammonium salt, Ammonium perfluorooctanoate, FC-116, FC-126, FC-169, or FC-143.

Manufacturer ofHigh Performance TCI PTFEComposites andLaminates TCI MATERIALS FOR FOOD APPLICATIONS FDA AND EUROPEAN COMPLIANCE TCLs a manufacturer of a high-performance materials used in the food processing industry.

Annex III - Honeywell ACLAR packaging cost estimates and analysis In this document, Honeywell reviews the testing requirements and on this basis calculates cost estimates to requalify and repackage drugs packed using Aclar barrier films.

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Genotoxicity, Carcinogenicity, Developmental Effects and Reproductive Effects of Perfluorooctanoate: A Perspective from Available Animal and Human Studies Prepared for the Association of Plastics Manufacturers of Europe and the Society of the Plastics Industry John L.

eteree see -------------------- Pros AREPRODUCTION STUDY WITH THE MALLARD FINAL REPORT WILDLIFE INTERNATIONAL, LTD.

AR226-2194 ^ Stephen J Gissy 08/28/2001 07:33 AM To: cc: Subject: Ta-Wei Fu/SE/DuPont@DuPont Oscar T Garza/AE/DuPont@DuPont, Fred M Lentz/SE/DuPont@DuPont, Robbin Baneriee/AE/DuPontQDuPont, Paul K.

AR226-2472 Stephen R Peck 03/07/2000 07:48 AM To: cc: Subject: Carey E Cole/CL/DuPont@DuPont, Roger J Zipfe!

\/""_^-^--/ Stephen W Constable_______09/08/2000 11:02 AM To: cc: Subject: William G 0'Brien/AE/DuPont@DuPont Ta-Wei Fu/CL/DuPont@DuPont analytical for C8 I met wilh Ta-Wei Ihis moniiiig and he mentioned (hat you were searching for a method to analyse C8.

AR226-2558 -9 - Andrew S Hartten 05/31/2001 03:29 PM To: cc: Subject; wentworth.wltliaffi@epamall.epa.gov Robert L Ritchey/CL/DuPont@DuPont, Isidores J Zanites/ABDuPont@DuPont, Andrea V Malinowski/AE/DuPont@OuPont, Alison A Crane/A/DuPont@DuPont information on Washington Works Facility Bill, The following provides answers to your questions in the May 23 memo you sent me, which Is attached, Per our conversation today, I'm faxing to you hard copy analytical results and the pertinent portion of the site NPDES permit modification (to add to the original permit which you have).

AR226-2571 To: cc: Subject; Andrew S Hartten/AE/DuPont@DuPont Protocol for sampling and testing .....-------------- Forwarded by Isidores J Zanikos/AE/DuPont on 10/02/2001 02:55 PM ------------------------ ,y George H Senkler_Jr 10/02/2001 01:32 PM To; cc: Subject: Isidores J Zanikos/AE/DuPontQDuPont, Mary A Kaiser/AE/OuPont@DuPont John R Bowman/AE/DuPontfgjDuPont Protocol tor sampling and testing Per our discussion of last week, I have taken the materials that Mary had provided and crafted a document that might provide the "road map" for the procedures we use to map, sample and test. very much approcuiate your comments as to the adequacy of these instructions.

AR226-2582 Ohio EnvtronmBnial Protection Agency TO: Dave Watkins, Division of Water Resources, WVDEP FROM: Steve Williams, Division of Drinking and Ground Waters, SEDO DATE:Maroh12,2002 RE: Ohio River Water Sampling Proposal The Division of Drinking and Ground Waters and Division of Surface Water at the Ohio EPA Southeast District Office have completed a review of INTER-OFFICE COMMUNICATION DuPont's "Ohio River Sampling Proposal for the Washington Works Facility and the Letart Landfill", The following comments are Ohio EPA's recommendations for additional samples to more thoroughly define the extent of C-8 In the Ohio River. 1.

AR226-2591 Division of Water Resources 1201 Greenbrier Street Charleston, WV 25311-1108 '304-558.2108 West Virginia Department of Environmental Protection BGovernor o b W i s9 Au e' gust 2 ~002 " .Michael 0.

AR226-3147 TRADE SECRET Study Title H-24335: Local Lymph Node Assay (LLNA) Laboratory Project ID: DuPont-3823 AUTHOR: Gregory S.