Document dZGorN61kBmpY8y3y91GqJ7G

Jean B. Sweeney Vice President 3M Environmental, Health and Safety Operations 3M Center, Building 0224-0R-403 St. Paul, MN 55144-1000 651 737 3569 ' Certified Mail S I _~ Y , August 19, 2009 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 cx'~ NO CBl Re: TSCA 8(e) Substantial Risk Notice : Supplemental to Docket No. 8EHQ-0598373 ; Sulfonate-based and Carboxylic-based Fluorochemicals To whom it may concern: 3M is submitting this notice to supplement its previous submissions on sulfonate-based and carboxylic-based fluorochemicals . 3M recently generated data, on behalf of the National Park Service, showing detectable levels of the fluorochemicals in blood samples collected from nestling bald eagles=of the Mississippi and St . Croix River Valleys of Minnesota and Wisconsin. - These data were generated as part of an inter-laboratory study, sponsored by the National Park Service, where common samples were split and sent to three independent labs for fluorochemicals analysis . To 3M's knowledge, data from the other two participating laboratories have not yet been generated. We are notifying the EPA of these data to fulfill our TSCA 8(e) reporting obligations, and will provide a copy of the complete final report (compiling data from all three laboratories) once it is made publically available by the National Park Service. If desired; the EPA can request draft data from the National Park Service prior to our final report submission . If you have any questions or need additional information, please contact Deanna Luebker, 3M TSCA 8(e) Coordinator, at (651) 737-1374 or diluebker(~mmm .com. Sincerely, c-K, ~ ~~ C.C~~ Jean B. Sweeney Staff Vice President, 3M Environmental, Health and Safety Operations t