mn ROBERTV.GALANTE E S 3 escmtm ores 0e 7050 MEMO FROM: Robert Galante DATE: 12-5-07 SUBJECT: Orange PFOS and PFOA +Qo Uni3,ted Water ' Sez 70: Betty Boros-Russo COPIES: As discussed, here are the results.

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ST311 ToxDocs 10-196 TOXICOLOGY ASSESSMENT AND COMPLIANCE ASSURANCE GROUP 3M COMPANY 10-196: ORAL STUDY OF MTDID 208 AND MTDID 1004 IN MALE RATS FINAL REPORT ToxDoes Study Number 10-196 Test Material MTDID 208 MTDID 1004 Lot Number(s) 217 (MTDID 208) 332 (MTDID 1004) Strategic Tox Lab Study Number| ST-311 Other Identification Number(s) | K PFOS (MTDID 208) NH:PFOA (MTDID 1004) T9F/TH-NMR Analytical Report| See Appendices | & 2 for Certificate GID Number ofAnalysis Study Director Jill Hart, AAS, LATg Laboratory Administrator Principle Investigator: (Study Monitor) John Butenhoff, Ph.D., DABT, CIH Corporate Scientist Testing Facility 3M Strategic Toxicology Laboratory 3M Center, Bldg 270, room SB314 Saint Paul, MN 55144 Tn-Life Termination Date fAuguest 13, 2010 Tof14 ST-311 "ToxDocs 10-196 TOXICOLOGY ASSESSMENT AND COMPLIANCE ASSURANCE GROUP 3M COMPANY 10-196: ORAL STUDY OF MTDID 208 AND MTDID 1004 IN MALE RATS Compliance Statement and Signature Page `This study was conducted for research and development purposes and does not conform to regulatory guidelines.

1 ECOTOXICOLOGY, ENVIRONMENTAL FATE AND HEALTH TESTING OF PERFLUOROBUTANE SULFONATE April 26, 2004 Revised June 6, 2005 Prepared by 3M in consultation with Jack Moore, D.V.M, DABT, Hollyhouse, Inc.

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Taft/ Taft Stettinius & Hollister LLP . 425 Walnut Street, Suite T800 /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.

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(Me0 Surface Protection Solutions 4417 Lancaster Pike, BMP23-2236 Wilmington, DE 19805 ~C. et :M Marsi - DuPont Malinowski - DuPont C93 10 : 34 A~.aaE ~3,a~ ot a(o May 30, 2008 Attn: Jim Willis (phone 202-564-0104) Document Control Office (7407M) r+~ United States Environmental Protection Agency (EPA) Office of Pollution Prevention and Toxics (OPPT) EPA East, Room 6248 1200 Pennsylvania Avenue, N.

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FINAL REPORT Epidemiology, 220-3W-05 Medi3cMalCDoemppaarntyment St.

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