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Toxicological Summary PFOS Dietary Chronic Definitive Reproductive Study: Northern Bobwhite Test Substance: Perfluorooctanesulfonate (PFOS) Structure: 1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro, potassium salt.

A-- AR236- (544 STUDYTITLE Extactonof Psassum Perflcrocuncslfose fom gg Membrane, Albumen, and `Yolk for Analysis Using HPLC-Electrospray/Mass Spectrometry DATAREQUIREMENTS Analytical Method Requirements STUDYDIRECTOR - Sean Gallagher STUDYCOMPLETEDON Sepimber 06,2001 = PERFORMINGLABORATORY/ TESTINGFACILITY Conte Ans0o48nRLebsoearrscrhireis,veIn.

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AR226-2448 INTEROFFICE MEMORANDUM Date: From; Dept: Tel NO: 16-Sep*1997 03:07pm Gregory A Chapman CHAPMAGA Fluoroproducts 304-863-2535 TO: See BelOM Subject: Action Items from 9/16 C-8 Sampling Meeting 1.

AR226-2555 Robert F Pinchot 05/11/2000 07:31 AM To: co: Subject: David M Rurak/AE/DuPont@DuPont, Michael E McCord/ABDuPontQOuPont, Robert J Cavanaugn/DuPontQDuPont, Luk D'Haenens/EUR/DuPontOuPont, Roger J 21pfel/AE/DuPont@DuPont, Anthony J playtis/CL/DuPontDuPont, Arie sl Vermeulen/EUR/DuPont@DuPont, Gerald L Kennedy/AE/DuPont<aDuPont, William R Berti/AE/DuPont@DuPont, John Gannon/AE/DuPontQDuPont, Robert L Rltchey/CUOuPont@OuPort, Andrew 8 HarttBn/A6/DuPont@DuPont, Susan S Mileti/DuPont@DuPont Andrea V Malinowski/A/DuPont@DuPont, Maurice Astorga/AE/DuPont@DuPont, Richard J Angiullo/AE/DuPontQDuPont, Bernard J Reilly/AE/DuPontQOuPont, Gary W Jepson/AE/DuPont@DuPont PFOA EPA Request As many of you know, the Office of Pollution Prevention and Toxics in the US EPA has requested that DuPont supply a large amount of information on Pertluorooctanoate (PFOA or C-8).

AR226-2629 17 AR226-262 9 Dordrecht Works C-8 Sam Summary-Revision 1 Groundwater Sampling Results Revision 1 Note: Revision 1 of the Dordrecht Works March 2003 sampl event summary was prepared based on new well const information received in June 2003.

AR226-2694 16 AR226-2694 DuPont EMSE Report No. 17-03 Study Title ADSORPTION/DESORPTION OF AMMONIUM PERFLUOROOCTANOATE TO SOIL (OECD 106) Test Guideline(s) OECD 106 Guidelines for the Testing of Chemicals; Adsorption-Desorption Using a Batch Equilibrium Method (January 21,2000) Author Lynn Ann Dekleva Study Completion Date 17-April-2003 Test Facility E.I. du Pont de Nemours and Company Central Research & Development Corporate Center for Engineering Research Environmental and Microbiological Sciences & Glasgow Building 300, P.O.

AR226-2935 % FOR DU PONT USE ONLY Du Pont HLR 801-88 Study Title Skin Irritation Test in Rabbits o Author William J.

AR226-3027 Study Title Skin Irritation Test with H-21209 in Rabbits Laboratory Project ID Haskell Laboratory Report No. 623-95 Author Tracy A.

ARR2G 328 467 ARR26 _ 328) --_ oDumronizes66 TRADE SECRET Study Title H-25777: Inhalation Approximate Lethal Concentration (ALC) in Rats AUTHOR: David P.

Larry R.

Two Week Oral Rangefinding Toxicity Study of T-2509CoC in Rats Experiment No.: Dosing Started: Recovery Intervals Completed: Study Director: Testing Facility: Sponsor: 179RRO23 October 3, 1979 November 15, 1979 G.

AbioticDegradationStu and photolysistudypla AbioticDegradation Studiesof PerfluorooctaneSulfonate PurposeofStudy: The purposeofthiisnvestigatiistoondeterminteheabiotidcegradation reactionsr,atesand productsofthepotassiumsaltofperfluorooctanseulfonate (PFOS or FC-95).These resultwsillbe used toaidinthedeterminatioonfthe environmentalfateofthiscompound.

ACTIVATED SLUDGE RESPIRATION INHIBITION TEST SUBSTANCE Identity:Perfluorooctanesulfonylamido(ethyl)acemtaaytea;lso be referredtoas PFOSAA, FC-128 oras themajor component of FC-1 27, FC-129, FC-1 09,or FC-109-X.