Document k6EyBVg6DbrO8GezrrQkQz0EO

3M Specialty M ateriali 3M Center St. Paul, MN 55144-1000 651 733 1110 VIA HAND DELIVERY 3M August 25,2003 Document Control Office (7407M) Office o f 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 o f Perfluorooctane Sulfonic Acid and its Salts Dear Sir or Madam: I enclose for the docket an electronic copy o f 3M*s "Environmental and Health Assessment o f Perfluorooctane Sulfonic Acid and its Salts," dated August 20,2003. This document provides an assessment integrating all o f 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 o f Environmental, Health, Safety and Regulatory Affairs 3M Building 236-1B-10 St. Paul, MN 55144 651-733-6374 (phone) 651-733-1958 (fax) E-mail: masantoro@mmm.com