3M ENVIRONMENTAL LABORATORY REPORT NO. 07-0650 Final Report Analysis of PFBA, PFOA, PFBS, PFOS, FBSA, and FOSA in Aqueous Samples from 3M Decatur, Alabama 3M Decatur NPDES Permit Number AL0000205: Quarterly FC Monitoring of Outfall DSN001; 4th Quarter 2007 Sampling Laboratory Request Number: E07-0650 Method Requirement: 3M Method ETS-8-154.1 Report Date -December 10, 2007 Testing Laboratory 3M EHS Operations 3M Environmental Laboratory Building 260-5N-17 Maplewood, MN 55144-1000 Requester Gary Hohenstein 3M Building 42-02-E-27 PO Box 3331 Saint Paul, MN 55133-3331 Phone: (651)778-5150 Fax: (651)778-7203 1ir accredited] Certificate #2052-01 The testing reported herein meet the requirements of ISO/IEC17025-2005 "General Requirements for the Competence of Testing and Calibration Laboratories", in accordance with the A2LA Certificate #2052-01.

AR 126-OOI1 3M Environmental Laboratory Final Report- Analytical Study Single-dose Intravenous Pharmacokinetic Study of T-6049 in Rabbits In-Vivo Study Reference Number: HWI#6329-129 Study Number: AMDT-112294.1 Test Substance: FC-95 (T-6049) Name and Address of Sponsor: 3M SCD Division 367 Grove Street St.

3 FLUOROCHEMICAL SUBMISSIONS JUNE 28, 2001 Click a Blue Item Below to Continue COVER LETTER TO USEPA TOXICOLOGY, EPIDEMIOLOGY & MEDICAL SUVEILLANCE ENVIRONMENTAL - PHYSICAL/CHEMICAL, FATE & EFFECTS AND MONITORING STUDIES BIBLIOGRAPHY OF ADDITIONAL PUBLISHED LITERATURE

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AR. 2,26-- l g 3M Company Page 1 of 63 FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

Katherine E.

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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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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AR226-2193 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.

AR226-2247 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.