AR226-2356 S tev e W illiam s" <steve.w illiam s@ epa.state.oh.us> on 01/27/2004 10:17:55 AM To: Andrew S Hartten/AE/DuPont@ DuPont cc: 'Michael Preston* <mlchael.preston@ epa.state.oh.us> Subject: Re: Draft Surface Soil Procedure Andrew, I looked over the draft soil/biota sampling procedure and have a few questions/comments.

AR226-2408 INTEROFFICE MEMORANDUM Date; From: Dep t : Tel N o : 6-Apr-1390 01:06pm Peter .D.Spohn SPOHNPD PPD--SPD 863-4732 TOs William E.

AR226-2434 t.fc BRANDERA AT A1 AT EU0IS2 02/18/94 02:27 PM To- RIETBRG AT A1 AT EU0IS2 , HUISMAW AT A1 AT EU0IS2 , QUARLES AT A1 AT WWPS , NISHIKAY AT A1 AT WWPS , AREA AT A1 AT YOVXOO , SAWATAI AT A1 AT YOVX00 , PRIMUSCJ AT A1 AT WWPS , 2IPFEL AT A1 AT WWPS cc: YOKOYAK AT A 1 AT YOVXOO Subject: First draft C-8 sampling + analysis procedure Tor see distribution list FromsR.A.

AR226-2454 INTEROFFICE MEMORANDUM TO: Distribution List Date: From: Dept: Tel No 05-Nov-1998 09:23am JOHN F.

AR226-2464 LX,!'

AR226-2479 George Woytowich 09/20/2000 08:11 AM To: Roger J2Jpfel/AE/DuPont@DuPont cc: Robert L Ritchey/CL/DuPont@ DuPont Subject 9/18/00 Water Sam ples D o you think w e sh ou ld b e able to pick up C -8 in the river on the cited tests?

^Precise Research. \ Proven Results AR226-2501 Analytical Report Fluorochemical Characterization of Water Samples DuPont Washington Works Exygen Resareh Laboratory Report No. 008-046B {Revision 1) Testing Laboratory .

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.

Study Completed On September 14, 1995 ) Performing Laboratory E I. du Pont de Nemours and Company Haskell Laboratory for Toxicology and Industrial Medicine Elkton Road, P. 0.

AR226-3037 Study Tille Eye Irritation Test with H-21460 in Rabbits Laboratory Project ID Haskell Laboratory Report No. 82-96 Author Tracy A.

TRADESECRET AR226-3082 DuPont H L-1997-01205 Study Title H-22994: SKIN IRRITATION T e s t IN RABBITS L a b o r a t o r y P r o je c t ID : HD-1997-01205 Author: Tracy A.

AR226-3155 TRADESECRET Study Title H-23961: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ID: DuPont-2923 DuPont-2923 Author: Carol Finlay, B.A.

SPONSOR Elf Atochem SA Cours Michelet La Dfense 10 92091 Paris-la-Dfense CEDEX France AR226-3158 CONFIDENTIAL TEST SURSTANC.F STUDY TITTP SKIN SENSITIZATION TEST f*/r . , EV GUINEA-PIGS (Maximization method of Magnusson and Kligman) STUDY DTRFrrnp Xavier Manciaux STUDY COMPLETION DA T P 28 August 2000 TESTFACTTJTV CIT C^ temationaJ de Toxicologie BP 563 - 27005 Evreux - France LABORA TORY STUD Y NTIMn I IFMRecherche S-N.CAl/ CAPITAI D S SSO 0 00 F S * S5>QAt -'^WEREr 2700S EVREUX Company Sanitized.

AR226-3363 Society of Environmental Toxicology & Chemistry Summary of DuPont Presentations North American World Congress November 13-18, 2004 Portland, OR Biotransformation of 14C-Iabeled Fluorotelomer substances by microorganisms from activated sludge or soil.

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