Document pBxeKoO3X10Y562rM53JgxpeB

3M General Offices 3M Center St. Paul, MN 55144-1000 651 733 1110 .i 1 ZuiH.R 12 Aii O: 2 ! A n ' i >i 3 l < p .1 * VI * I0FEB I g PH 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: 202-564-8930 Attention: OPPT Docket No. AR-226 (Toni Krasnic - Room 410L) Re: Information on Perfluorobutane carboxylate (PFBA) and its salts Dear Docket Officer: This continues 3M's voluntary submissions o f data on perfluorooctane sulfonate (PFOS), perfluorooctanoic acid (PFOA), and related compounds, as part o f our ongoing dialogue with EPA regarding perfluorochemicals. 3M is submitting a collection o f pharmacokinetic studies on various fluorochemicals. An index o f the materials is provided on the CD, and the index contains hyper-links to the individual documents. Also enclosed is a hard copy o f the index. Please feel free to contact me with any questions. X /a ? 4 w iiK r tr/\ii w Michael A. Santoro 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 P-2 AR-226 Docket February 19,2010 Page 2 o f 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)