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3M General Offices 3M Center St.

AR x a 6 - O g J-6 ACUTE TOXICITY TO FISH (FATHEAD MINNOW) JE ST.SUBSTANCE_________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-600. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The 3M production lot number was not noted.

W 2 - Z 6 - II 7 7 REC EIV ED MAY - 6 2002 UNITED STATES ENVIRONMENTAL PROTECTION AGENCY REGION III 1650 Arch Street Philadelphia, Pennsylvania 19103-2029 APR 2 4 2002 Robert A.

AR226-1405 / ) R S . 6 -- \ M-OS~ "ATTORNEY-CLIENT PRIVILEGED INFORMATION" .Septeiber 19, 1991 7o: alt Stewart Pro: Terry Vandell Subject: Heetinq Minutes Of The On-Site Washington Works Meeting ( Septeiber 11, 1991, 9:00 AH-11:00 AM ) Regarding The Septeiber 4, 1991 Proposed C-8 Saipling Progra Present: John Doughty, Tony Zichstadt, Wendell Coin, Penny Mahoney, Mike McClusky, Carl Husca, Dave Raisey, Walt Stewart, Terry Vandell o Introduction: Walt Stewart, See Attachient 1 o Cheical Data Results: Penny Mahoney, See Attachient 2 Key Points: Appendix IX constituent levels and presence are inconsistent under the site, whereas the C-8 presence and levelsare uch ore consistent; C-8found at low ppb level on-site in wellsTV27 k T1M4, hut at uch higher levels inwells TW32 and TV33 which arecloser to the oldsupemate ponds(the exactquantitative results fro wells 32 &33 are still pending but arebelieved to be >1 pp). o HistoricalData Results: Mike McClusky, See Attachient 3 Key Points: In 1984 C-8 found <1.5 ppb .25 to 3 iles downgradient fro Washington Works.

*R a 6 _ PERSONAL AND CONFIDENTIAL CC: J .

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AetZC>-ICC5 INTEROFFICE MENOBANDOll Date: Ft: Dept: Tel Bo: 02-Dec-1996 11:16am Rik Brandenburg BRANDERA AT A1 AT EOIS2 FLPR (Fluoroproducts - Teflon) 31-78-6301648 TO: See Below Subject: RE: December C-8 PACE Team Meetings Greg, On Friday, December 6 I'll participate in a meeting in Geneva with Hoechst and ICI about analytical methods to determine migration of C-8 from PTFE coated pans into food simulants.

Attachment 3 VV / W J CANCER PREVALENCE IN SUBJECTS EXPOSED TO PERFLUOROOCTANONIC ACID (PFOA) James Dahlgren MD1, Ayman B iarahimMD* ,2,3,,Raphael Warshaw2, Earpreet Takhar MFH3 4 1.

Attachment 2 Analytical Report Air Sampling Fluorochemical Report DuPont Washington Works - Air Sampling Program Round 7 Exygen Research Report No.

R ep ort T itle Evaluation of the Northwest Bioanalytical Method V alidation Reports fo r PFOS and Related Analytes in Human Serum or Plasma in Meeting the Requirements o f the - _________EDA BioanalyticaLMethod Validation QAI Report No. 405-503 Data R equirem ent Full Validation o f Bioanalytical Method Author Nancy Benson Philippe Ourisson Quality Associates, Inc. 9017 Red Branch Road, Suite 102 Columbia, MD 21045 Sponsor 3M Environmental Laboratories 935 Bush Avenue Bldg 2-3E-09 St Paul, MN 55106 R eport Date December 31,2001 Report Number QAI 405-503 Number o f Pages 26 TABLE OF CONTENTS QAI Report No. 405-503 I.

Medical Center NEBRASKA'S HEALTH SCIENCE CENTER June 18, 2004 PATHOLOGY AND MICROBIOLOGY John L.

Corning Hazleton Inc.

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