AR226-2068 l/i-7 a^ SAFETY, HEALTH AND ENVIRONMENTAL ^M) C8 AMMONIUM PERFLUORO--OCTANOATE FC-143 ANIONIC FLUOROCHEMICAL SURFACTANT i -1- MGF by 3M COMPANY o DuPONT AEL: 0.01 mg/M3 (0.56 ppb. 8 hr TWA) o IRRITANT via INHALATION, SKIN or EYE CONTACT o MODERATELY TOXIC (ORAL) o ACUTE OVER-EXPOSURE: LIVER INJURY o CHRONIC EXPOSURE - LIVER ENLARGEMENT - ELEVATED BLOOD FLUORINE LEVELS o NO KNOWN MEDICAL PROBLEMS FROM C8 (35 years) o C8 IS NOT: -ATERATOGEN - EMBRYOTOXIN - MUTAGEN I QKS 10/24/90 EID112755 ,, ..^^..

AR226-2198 Chris E Shoop 08/28/2001 04:10 PM To: cc: Subject Stephen J Gissy/AE/DuPont@DuPont ' Karl G Kronberg/ABDuPont@DuPont, Robert I Wevodau/SE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont Emissions Modeling for Permit Applications Steve, Karl, Bob, and I feel that we will need to have modeling data for the applications we plan to submit or have already submitted Tor FP, PEP, and PFA.

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AR226-2423 ATHOSPHERH^HPDELINS STUDIES WASHINGTON WORKS NEAREST LUBECK NEIGHBOR ANNUAL EXPOSURE IS CA. 0.03 U6/M3 (lO^.CEG) ASSUMING 85% UTILITY/90'S, EFFICIENCY OF FINE POWDER DRIER SCRUBBER.

AR226-2452 laboratory Hame; CH2M HXM; Lab Sample ID; M6144001 Client Sample ID; fflU^aU., oseanxes um&TiStS DATA saw Concentration: IiQW _ Sample Matrix: WATSJB.

AR226-2524 ro DuPont Engineering Bariey Mill Plaza-BIdg. 27 4417 Lancaster Pike Wilmington, DE 19805 November 8,2004 DavidP.Waudns West Virginia Department of Environmental Protection J^-'^^Jj Division of Water Resources 1201 Greenbrier Street NOV 1C 2004 Charleston, West Virginia 25311-1088 3Q04 Residential Sampling Results, West Virginia and Ohio BY:_____...

AR226-2528 TOXICOLOGY LIMITS TLV AEL CEGA CEGW ufl/m3 100 10 0.3 jgpfa 5.6 0.56 0.0015 1.0 CALCULATED DOSE - AEL - CE6 100 ug/day 6 ug/day EID079258

AR226-2567 1 N OF To; From; TE R PICE MEMO Mr.

AR226-2704 26 AR226-2704 TORONTO WORKSHOP MATERIALS September 13-14,2004 Fluorotelomer Alcohol and Fluorotelomer-Based Polym (Bio)degradation Bob Buck DuPont Chemical Solutions Enterprise Wilmington, DE Fluorotelomer-based Polyme Do polymers "degrade" to form fluorotelomer species that can transform, partition, migrate?

AR226-2768 FOR DU FONT USE ONLY Copies co: E.

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FOR.PO' FONT USE ONLY AR226-2888 Copies to E.

AR226-2918 FOR DU PONT USE ONLY cc: Haskell E.

AR226-2965 DU FONT USE ONLY Du Font HLR 636-91 Study Title STATIC, ACUTE, 96-HOUR LC50 oqfi--------|^ TO FATHEAD MINNOWS ( PIHEPHALES^SDHELAS) Author Kevin N.