Document o9aE40oaJ5D5Bea4b6Byky293

35pp. 3M Katherine E. Reed, Ph.D. StatY Vice President 3M Environmental, Health and Safety Operations 'fH Q :i*f-ae>373 900 Bush Avenue. Building 42-2E-26 PO Box 33331 St. Paul. MN 55133-3331 651 778 4331 *2 7 ,2 / 3 / Certified Mail January 8, 2004 4 37^ o Document Processing Center -42e2-/5S<2 EPA East - Room 6428 Attn: Section 8(e) Office of Pollution Prevention and Toxics US EPA o 1200 Pennsylvania Avenue NW cr> Washington DC 20460-0001 RE: TSCA 8(E) SUPPLEMENTAL SUBMISSIONC: ovrrA fM Docket No. 8EHQ-0602-15091 IK Dear Docket Coordinators: 3M has previously informed the EPA (February 28, 2002 and April 3, 2002) of the results of an oral gavage two-generation reproduction study in rats with ammonium perfluorooctanoate (CAS# 3825-26-1). In today's submission, 3M provides results from subsequent related testing with this material. This information has been previously submitted to and discussed with EPA. Enclosed please find the final study titled "Ammonium Perfluorooctanoate: Age Effect on the Plasma Concentration in Post-Weaning Rats Following Oral Gavage." Please contact John Butenhoff (651-733-1962) if you have any questions or if we can provide additional information. Sincerely, l Katherine E. Reed Staff Vice President, Environmental, Health and Safety Operations Enclosure c: Ms. Andrea Malinowski DuPont Building 1007 Market Street Wilmington, DE 19898 EPA-OTS 000811869X Dr. Robert Rickard DuPont Haskell Laboratory Elkton Road, P.O. Box 50 Newark, DE 19714-0050 OOOllfih'lX c;,,i ro Gd cx> /