Document aJO944VgVyvyMznvDdv2XRZkR

3M General Offices 3M Center St. Paul, MN 55144-1000 651 733 1110 AZ2Z&-3823 Certified Mail October 23, 2008 Document Processing Center EPA East - Room 6428 Attn: Section 8(e) Office of Pollution Prevention and Toxics, US EPA 1200 Pennsylvania Avenue NW Washington DC 20460-0001 RE: TSCA 8(e) Docket No. 8EHQ-07-16721 p ^ " r n \/r n -- * b* 05HO U T; -` f .* r , a #. i-.i Sanitized I To Whom It May Concern: In February of 2007 3M notified the EPA of interim data received from a five-day repeat dose oral toxicity screening study in rats performed on an experimental chemical, [fluorinated surfactant salt]. In this study six of six female rats treated with 288 mg/kg/day of the chemical died after four to five doses while no mortality was observed in male rats in the same dose group following five consecutive daily doses. This study is now complete and the final report is enclosed. Please contact me at 651-737-1374 or di luebker@mmm.com if you have any questions or if we can provide additional information. Sincerely, Deanna J. Luebker, PhD 3M TSCA 8(e) Coordinator Enclosure Company sanitized ~3i >0 7 ^