Document 03xDx8VYzQe2R1mBjNV44qRn

3M General Offices 3M Center St. Paul, MN 55144-1000 651 733 1110 i ~i1 .i - 2 2 I 4 n a-.)- 6 - 3~ D.< p. 1 Rl-CEWIP ~F~_)`-' . . .rilr 1Q FEB 19 P~1 3~ 18 February 17, 2010 Via Hand Delivery Document Control Office Docket AR-226 EPA East Building, Room 6428 1201 Constitution Ave., N.W. Washington, DC 20460 Phone: 202-5648930 Attention: OPPT Docket No. AR-226 (Toni Krasnic - Room 410L) Re: Information on Pertluorobutane carboxylate (PFBA) and its salts Dear Docket Officer: This continues 3M's voluntary submissions of data on perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and related compounds, as part of our ongoing dialogue with EPA regarding perfluorochemicals. 3M is submitting a collection of pharmacokinetic studies on various fluorochemicals . An index ofthe materials is provided on the CD, and the index contains hyper-links to the individual documents . Also enclosed is a hard copy of the index. Please feel free to contact me with any questions . Very truly yours, Michael A. Sa+cftoro Director of Environmental Health Safety and Regulatory Affairs 3M Center, Building 236-1B-10 St. Paul, MN 55144 651-733-6374 (phone) 651-733-1958 (fax) E-mail : masantoro@mmm.com CONTAINS NO CBI m (Z -3 '11 g93 AR-226 Docket February 19, 2010 Page 2 of 2 651-733-6374(phone) 651-733-1958 (fax) E-mail: masantoro@mmm.com Enclosures cc: Dr. Jennifer Seed, EPA Dr. Joyce Donohue, EPA Dr. Dana Glass, Oakridge National Laboratory (all with enclosures)