PFOS 3M FLUOROCHEMICAL SUBMISSIONS February, 2002 - May, 2004 ENVIRONMENTAL STUDIES Click on Study Title to View Report Perfluorooctanesulfonate PAGE 1, 2, 3, 4, 5 Summary and Other Environmental and Health Assessment of Perfluorooctane Sulfonic Acid and Its Salts, 3M, August 20, 2003.

3M FLUOROCHEMICAL SUBMISSIONS February, 2002--May, 2004 CLICK A DATE back to main INDEX OF 3M'S 2002-2004 AR-226 DOCKET SUBMISSIONS BY DATE 2002 February, 2002 March, 2002 April, 2002 May, 2002 July, 2002 September, 2002 October, 2002 December, 2002 2003 January, 2003 February, 2003 July, 2003 August, 2003 September, 2003 2004 January, 2004 February, 2004 April, 2004 May, 2004

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AR 226-035 SUMMARY OF HISTOPATHOLOGICAL EXAMINATIONS OF FATHEAD MINNOW (Pimephales promelas) EXPOSED TO 78.01 FOR 30 DAYS. p M - 3 V'Z"*-' RESEARCH REPORT SUBMITTED TO 3M COMPANY ST.

STUDY TITLE Extraction of Potassium Perfluorooctanesulfonate from Red Blood Cells and Serum for Analysis Using HPLC-Electrospray/Mass Spectrometry DATA REQUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher ANALYTICAL REPORT DATE June 2, 2003 PERFORMING LABORATORY / TESTING FACILITY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Environmental Technology and Safety Services Building 2-3E-09 POBox 33331 St.

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AR226-1978 J.

AR226-2193 Oscar T Garza ' 08/28/2001 07:44 AM To: TarWei Fu/SE/DuPont@DuPont cc: Stephen J Gissy/AE/DuPont@ DuPont, Fred M Lentz/SE/DuPont@ DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPont, David M Rurak/AE/DuPont@ DuPont, Raymond C Butterworth/CL/DuPont@DuPont, John R Flynn/AE/DuPont@DuPont, Amy L Brown/AE/DuPont@DuPont, Thomas W Mahlberg/SE/DuPont@ DuPont, Robert F PInchot/DEV/AE/DuPont@ DuPont, Chris E Shoop/AE/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont, Alvin H Gibson_Jr/CL/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont Subject: Re: A C TIO N IT E M S FR O M A P FO D IS PER SIO N M O D E LLIN G D It looks like we have to pursue the stack additions for 5 vents as an immediate issue - I think we just need to be sure the 20-30 ft is truly enough for these stacks.

AR226-2206 EXD294453 Fine Powder C-8 Scrubber Particle Size Analysis 1

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.

AR226-2430 INTEROFFIE MEMORANDUM Date: From; Dept; Tel No: 22-Jul-1993 07:59am DANIEL A WEBER WEBERDA POLYMER PRODUCTS 8-863-4415 TO: WALTER M.

3M General Offices 3M Center St.

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AR226-2467 W ..v,,- "Roger J .

AR226-2555 Robert F Pinchot 05/11/2000 07:31 A M ______ To- David M Rurak/AE/DuPont@PuPont, Michael McCord/AE/DuPont@DuPont, Robert J Cavanaugh/DuPont@DuPont, Luk Q'Haenens/UR/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont, Anthony J Playtis/Cl/DuPont@DuPont, Arie J Vermeulen/6UR/DuPont@DuPont, Gerald L Kennedy/AE/DuPont@DuPont, William R Berti/Ai/DuPont@DuPont, John Gannon/AE/DuPont@DuPont, Robert L Rltchey/GUDuPont@DuPont, Andrew S Hartten/AiyDuPont@DuPont, Susan S Mileti/DuPont@DuPont co: Andrea V Malinowski/A/OuPont@DuPont, Maurice Astorga/AE/DuPont@DuPont, Richard J Angiullo/AE/DuPent@DuPont, Bernard J Reilly/AE/DuPont@DuPont, Gary W Jepson/AE/DuPont@DuPont Subject: PFOA EPA Request As many of you know, the Office of Pollution Prevention and Toxics in the US EPA has requested that DuPont supply a large amount of information on Perfluorooctanoate (PFOA or G-8).