Document rB4pqngwVZadMgLMvxwqz4yEq

3M Specialty Materials 3M Center St. Paul, MN 55144-1000 If A R _ ;/*f651 733 1110 az 2883S E P ' 1 & M 8--3I VIA HAND DELIVERY August 25, 2003 Document Control Office (7407M) Office of Pollution Prevention and Toxics (OPPT) Docket AR-226 EPA East, Room 6428 1201 Constitution Avenue, NW Washington, DC 20460 Phone: 202-564-8930 Attention: OPPT Docket No. AR-226 Re: Environmental and Health Assessment of Perfluorooctane Sulfonic Acid and its Salts Dear Sir or Madam: I enclose for the docket an electronic copy of 3M's "Environmental and Health Assessment of Perfluorooctane Sulfonic Acid and its Salts," dated August 20, 2003. This document provides an assessment integrating all of the available data regarding PFOS. Please feel free to contact me with any questions. Very truly yours, cc: Dr. Charles Auer Dr. Oscar Hernandez (with enclosures) Michael A. Santoro Director of Environmental, Health, Safety and Regulatory Affairs 3M Building 236-IB-10 St. Paul, MN 55144 651-733-6374 (phone) 651-733-1958 (fax) E-mail: masantoro@mmm.com CONTAIN NO CR' /