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AR226-2186 EXPOSURE EVALUATION FOR NEW PROCESS AT FAYETTEVILLE SITE Prepared by DuPont Engineering Technology Debbie Mulrooney Cathie Barton August 20, 2001 EID293775 TABLE OF CONTENTS Executive Summary 1.

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AR226-2247 From: Bernard J R eilly on 01/15/2002 04:37 PM * To: David M Rurak/AE/DuPont@ DuPont, George H Senkler_Jr/AE/DuPont@ DuPont, Paul J Bossert/AE/DuPont@ DuPont, Martha L Rees/AE/DuPont@ DuPont@ DuPont, Isidoros J Zahikos/AE/DuPont@ DuPont, Robert W Rickard/AE/DuPont@ DuPont, Janet H W aters/CL/DuPont@ DuPont, R C lifton W ebb/AE/DuPont@ DuPont cc- Gerald L Kennedy/AE/DuPont@ DuPont, John R Bowman/AE/DuPont@ DuPont, M.

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A fL a a _ 3 T 2 7 # Ui \ DuPont Legal Andrea V Malinowski, Es.4-^ 2h l o: 5 9 Wilmington Office Buildings 1007 Market Street Wilmington, DE 19898 Corporate Counsel DuPont Environmental 1007 Market Street & fy o 10 6- 743^ Wilmington, Delaware 19898 Phone: (302) 774-6443 Fax: (302) 774-4812 E-mail address: Andrea.V.Malinowski@usa.dupont.com CONTAIN NO CBI 3 CTJ CT** C-- 6 January 2006 7 \f r VIA OVERNIGHT MAIL TSCA Confidential Business Information Center (7407M) EPA East - Room 6428 Attn: Section 8(e) U.S.

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TestA m e rica THE LEADER IN ENVIRONMENTAL TESTING ANALYTICAL REPORT PFOA/PFOS Analysis Lot#:: D8C180234 Laura Vancho New Jersey American Water 213 Carriage Lane Delran, NJ 08075 TestAmerica Denver licheile A.

425 Walnut Street, Suite 18t Cine Taft Stettinius & Hollister LLP ti, OH 45202-3957 /Tel: 513.381.2838/Fax: 513.381.0205/ www.taftlaw.com eland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing Robert A.

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Taft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1 8 0 0 /Cincinnati, OH 45202-3957/Tel: 513.381.2838/Fax: 513.381.0205/ www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing Robert a .

3M 3M ENVIRONMENTAL LABORATORY PROJECT E05-0210; INTERIM REPORT #20 Interim Report #20: Analysis of Water Samples from Northern Alabama Potable Water Systems, February 2006 Study Title A n a lysis o f Per flu o r o b u ta n e s u lfo n a te (PFBS), Pe r flu o r o h e x a n e s u lfo n a te (PFHS), AND PERFLUOROOCTANESULFONATE (PFOS) IN WATER, SOIL, SEDIMENT, FISH, C la m s , V e g e t a t io n , S m all Ma m m a l Liver a n d S m all Ma m m a l S erum Usin g LC/MS/MS for the 3M Decatur Monitoring Program Data Requirement EPA TSCA Good Laboratory Practice Standards 40 CFR 792 Author Susan T.

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30 June 2003 To: Mary F.