\f September 10, 2003 AR286 -- 1518 Cogany Somikized Does wf Condarn TSCA CBI Document Control Office (DCO) Office of Pollution US Environmental Prevention Protection and Toxics Agency (OPPT) E12P0A1 ECaosnts,tiRtoutoimon6A4v2e8nue, NW Washington, DC 20460 Dear Ms.

Fluoroprlymec Trusty Mehra, 4 Seplemben 2000 \f [| Altes List 3 AR 226 0937 Nome Ongnmgdb Flo HE 2 fare ePA [ce 2e2-2Co- SH0ST All.

BACK TO MAIN Study Title Microbial Metabolism (Biodegradation) of Perfluorooctane Sulfonate (PFOS) I.

BACK TO MAIN BIODEGRADATION STUDY REPORT The Aerobic Biodegradation of N-EtFOSE Alcohol by the Microbial Activity Present in Municipal Wastewater Treatment Sludge Thursday, November 02, 2000 PROJECT NUMBER 3M Project ID: LIMS E00-2252 Pace Contract Analytical Project ID: CA058 Pace Proposal ID: 000511.1 PRINCIPAL ANALYTICAL INVESTIGATOR Cleston C.

3M Medical Department Study: T-6889.3 3M Medical Department Study: T-6889.3 Analytical Report: FACT-TOX-026 LRN-U2782 Analytical Report: FACT TOX-026 LRN-U2782 Study Title 26-Week Capsule Toxicity Study with Ammonium Perfluorooctanoate (APFO/POAA) in Cynomolgus Monkeys Amended Analytical Laboratory Report Title Determination of the Presence and Concentration of Perfluorooctanoate Fluorochemical in Liver, Serum, Urine and Feces Samples Data Requirement Not Applicable Author 3M Environmental Laboratory Analytical Phase Completion Date Juant seig1n1in, g2001 Performing Laboratories Liver, Serum and Urine Analyses Feces Analyses 3M Environmental Laboratory Building2-3E-09, 935 BushAvenue St.

AR226-1486 ENVIRONMENTAL AND HEALTH ASSESSMENT OF PERFLUOROOCTANE SULFONIC ACID AND ITS SALTS August 20, 2003 Prepared by 3M in consultation with Jack Moore, D.V.M., DABT, Hollyhouse, Inc.

pros AREPRODUCTION STUDYWITH THE MALLARD FINAL REPORT WILDLIFE INTERNATIONAL, LTD, PROTECT NUMBER; 454-109 SMLAB REQUEST NO, 12723 FIERAGuideline 714 ECDGuideline 206 AUTHORS: SJWVeoakaomPnno.b.nGedaDrl1le.avgVehaenfrioven STUDY INITIATION DATE: Janay 2,201 STUDY COMPLETION DATE: Augist 21,2003 [-- Env5sivrCoothnrAiavabenoniry St Pa Mines 5106 Wildlife International, Ltd.

3sMrtFLaUcOmRnOtCrHEoMvIeCrAsLrSoUBrMiInSSwIeOsN HR226 190 | 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE 2% 902). 2. 206/903 2690p. 3.

TesfResu|ts' AR226-2124 file:///C|/WIN!

AR226-2156 Catherine A Barton ^ 07/08/2001 04:23 PM To: cc: Subject: Robert F Pinchot/DEV/AE/DuPont@DuPont Debbie J Mulrooney/AE/DuPont@DuPont Rob, I hope you had a nice vacation last week.

AR226-2187 EXPOSURE EVALUATION FOR NEW PROCESS AT FAYETTEVILLE SITE Prepared by DuPont Engineering Technology Debbie Mulrooney Cathie Barton August 20,2001 Revised February 20, 2002 EDD0068699 TABLE OF CONTENTS i Executive Summary 1.

AR226-2326 ^ JohnWMilroyJH 04/04/2003 11:09 AM To: cc: Subject Catherine A Barton/AE/DuPont@DuPont Stephen R Hastings/DDE/DuPont@DuPont, Ann K IVIasse/HO/DuPont@DuPont, Charles J Zarzecki/AE/DuPont@DuPont Re: Data for air dispersion modeling Q Stack height is 25 feet.

AR226-2557 - , , -<9 Andrew S Hartten 05/23/2001 05:21 PM To: Robert L Ritchey/CUOuPont@OuPontA, Hson A Crane/AE/DuPont@DuPont, George Woytowich/CL/DuPont@OuPont cc: Subject: Information on Washington Works Facility I received this today.

AR226-2558 -9 - Andrew S Hartten 05/31/2001 03:29 PM To: cc: Subject; wentworth.wltliaffi@epamall.epa.gov Robert L Ritchey/CL/DuPont@DuPont, Isidores J Zanites/ABDuPont@DuPont, Andrea V Malinowski/AE/DuPont@OuPont, Alison A Crane/A/DuPont@DuPont information on Washington Works Facility Bill, The following provides answers to your questions in the May 23 memo you sent me, which Is attached, Per our conversation today, I'm faxing to you hard copy analytical results and the pertinent portion of the site NPDES permit modification (to add to the original permit which you have).

AR226-2579 )Andrew's Hartten :-~----^JMI 0212712.QQ2'W:W W ^ To: co: Subject: M.