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CAS Number 25268-77-3 3M Company A fe - T * Voluntary Use and Exposure Information Profile N-Methyl perfluorooctanesulfonamido ethyl acrylate , I.

REPORT Study Title ASSESSMENT OF ACUTE ORAL TOXICITY WITH T-7868 IN THE RAT (ACUTE TOXIC CLASS METHOD) Author Drs.

C-8 BIODEGRADATION IN GROUNDWATER ctg.

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

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AR226-2144 COMMUNITY STATUS WATER AIR SOLID WASTE 10635-1 - 03/08/89 - WKCrkit EID951507 RJZ009905 WASHINGTON WORKS OFF-PLANT EMISSIONS POUNDS C-8 1983 1986 ' 1988 WATER 21,700 19,100 23,300 AIR 12,700 16,200 26,200 PRODUCT 8,000 8,300 11,300 OFF-PLANT DISPOSAL 7,700 TO CW - WWTP TO LETART LANDFILL 8,300 9.000 2.000 50,100 51,900 71,800 RJZ009906 10635-2 - 0 3/0 */9 - WIC:k*t EID951508 C-8 LEVELS IH DR]M SG WATER DISTANCE FROM NO. 5 OUTFALL (MILKS) PPB 1984 1987 1988 PARKERSBURG 7.50 UPSTREAM ND ND -- WASH WORKS 0.50 UPSTREAM ND ND ND LUBECK.

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AR226-2231 December 10,2001 CERTIFIED MAIL RETURN RECEIPT REQUESTED Mr.

AR226-2286 Frank D Sm ith 05/13/2002 08.-25 AM To: Catherine A Barton/AE/DuPont@DuPont cc: Kenneth N Wood/AE/DuPont DuPont, James F Riley/CL/DuPont@DuPonl, Craig L Bartlett/AE/DuPont@ DuPont Subject: TEFLON AT SPRUANCE Cathy FYI Frank Forwarded by Frank D SmrUVAE/DUPont on 05/13/2002 08:24 AM - W . sidoros J Zanikos SfisiHSHMarai To: Michael R Liberati/AE/DuPont@DuPont cc: Andrew S HARTTEN DuPont, Frank D Smith/AE/DuPont DuPont, M ichael J LukasODuPont Subject: TEFLON AT SPRUANCE M ike, the screening levels have been set in W VA as part of the consent order.

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AR226-2471 DtiPoftJ VifeshiirionWorks P.0. 3dx 121?

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FOR DU FONT PSR nwrv AR226-2772 Copies to H askell L a b o r a t o r y M e d i c i n e Elkton Road, P. 0 .

FOR DU PONT USE ONLY AR226-2946 Du Pont MLR 112-90 l Skin Irritati n Toft wltl in Rabbits Author I John H.