Document 9JGjZ47qoaQrmvgnm73bKmD65

3M Environmental, Health and Safety Operations 3M Center, Building 0224-05-W -3 S t Paul, M N 55144-1000 3 3 7 (o October 14,2010 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 4I0L) Re: Information on perfluorooctane sulfonate (PFOS) and perfluorooctanoic acid (PFOA) 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. We are enclosing a CD which contains PDF copies of the following: J. Butenhoff, S. Chang, and D. Ehresman, "Comparative Pharmacokinetics of Perfluorooctanesulfonate (PFOS) in Rats, Mice, and Monkeys." 3M Strategic Toxicology Laboratory, June 15, 2010. J. Hart and J. Butenhoff, Final Report (ST-291): "PK Study of MTDID 208 (Potassium Perfluorooctanesulfonate) in Rats." 3M Strategic Toxicology Laboratory, April 30, 2010. J. Butenhoff and S. Chang, Final Report and Amendments (ST-179): "ADME M Study of Perfluorooctane Sulfonate in Rats." 3M Strategic Toxicology Laboratory April 29,2010. 3k CD ~- c n ; -: J. Hart and J. Butenhoff, Final Report and Amendment (ST-274): "ADME Study MTDID 208 (Potassium Perfluorooctane Sulfonate, PFOS) in Mice." 3M Strategic^, Toxicology Laboratory, April 30, 2010. < f o CONTAINS NO CB' P-2 J. Butenhoff and S. Chang, Final Report and Amendments (ST-216): "ADME Study of Perfluorooctanesulfonate (PFOS) in Rats." 3M Strategic Toxicology Laboratory, April 29,2010. J. Butenhoff and S. Chang, Final Report and Amendment (ST-210): "ADME Study of Perfluorooctanesulfonate (PFOS) in Rats." 3M Strategic Toxicology Laboratory, April 29, 2010. J. Butenhoff and S. Chang, Final Report and Amendment (ST-207): "Oral ADME Study o f MTDID 208 in Rats." 3M Strategic Toxicology Laboratory, April 29, 2010. Minnesota Department of Health Community Brief: "East Metro PFC Biomonitoring Study Follow-Up Analysis of PFC Levels in Blood and Past Levels o f PFCs in Drinking Water." April, 2010. Please feel free to contact me with any questions. Very truly yours, Gary A. Hohenstein Manager o f Environmental and Regulatory Affairs 3M Center, Building 224-5W-03 St. Paul, MN 55133 Phone: 651-737-3570 E-mail: gahohenstein@mmm.com Enclosures cc: Dr. Jennifer Seed, EPA Dr. Joyce Donohue, EPA Dr. Dana Glass, Oakridge National Laboratory (all with enclosures)