AR226-2435 INTEROFFICE MEMORANDUM Date: From: Dept: Tel No: 22-Feb-1994 04:09pm Roger J.

* r AR226-2445 ZIPFEL 5 08 /04/97 03:51 PM To: WEBERDA , ELLISDE A T A1 AT CSOC cc: STEWART , HARTTEAS A T A1 AT CSOC Subject: RE: C-8 BIOFATE PROGRAM - WELL SAMPLING Dan, this needs to be discussed with Dave Ellis before we alter from our current program.

fi I 4' *^ m AR226-2566 Office o f W ater Resources 1201 Greenbrier Street Charleston, WV 25311-1088 Telephone: (304) 558-0375 Fax: (304) 558-5903 West Virginia Division of Environmental Protection Cecil H.

AR226-2624 RECYCLED AR226-2624 JULY 2004 PFOA SAMPLING DUPONT CIRCLEVILLE WORKS CIRCLEVILLE, OHIO Date: August 2004 Project No.: 18984003.04005 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 July 2004 PFOA Sampling Introduction On July 8,2004, groundwater was sampled from two recovery wells and three production wells at the DuPont Circleville Plant.

RECYCLED AR226-2647 \ \ GO \ Z-47 REV 6-82 T * B l.lR rl t> 1803 E.

AR226-2689 11 AR226-2689 ABCTelomer Research Program O A lK m Ciariant 8-2 Telomer B Alcohol Biodegradation Research Scone and Rationale The Telomer Research Program (TRP) 1 is investigating the biodegradation potential and pathway(s) o f 8-2 Telomer B Alcohol (CsF17CH2CH2OH; CAS #678-39-7), a primary fluorotelomer intermediate.

AR226-2744 E.

FOR DU FONT USE ONLY AR226-2779 E.

AR226-2801 DuPont-3381 TRADE SECRET Study Title H-24215: Static, Acute, 96-Hour LC50 to Rainbow Trout, Oncorhynchus mykiss Laboratory Project ID: DuPont-3381 Test Guidelines: U.S.

AR226-2848 Company Sanitized.

AR226-3129 DuPont-3324 TRADE SECRET Study Title H-24119: Local Lymph Node Assay (LLNA) Laboratory Project ID: DuPont-3324 Author: Gregory S.

TRADE SECRET Study Title H-24018: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-2927 AR226-3157 DuPont-2927 A u t h o r : Carol Finlay, B.A.

AR226-3174 trade secret FINAL REPORT Study Title H-24616; In Vitro M am m alian Chromosome A berration Test in Chinese H am ster O vary (CHO) Cells Authors Ramadevi Gudi, Ph.D.

AR226-3185 DuPont-4739 TRADE SECRET Study Title with OneH9-G0-2-eD4n6ae1yra6Gt:ioSanvuabRgceehprSrootnudidcuycTtiionoxnRicEaittvsyaluations Volume 2 of 5 Laboratory Project ID: DuPont-4739 Te st G u id e l in e s: OUP.SP.TESPA87H0.e3a1l0th0E(1ff9e9c8ts) Test Guidelines Author: Don A.

436 TRADE SECRET Study Title H-25357: Acute Eye Irritation Study in Rabbits Laboratory Project ID: DuPont-11111 DuPont-1l i l i Test Guidelines: U.S.