Document zopZ3gyyYLowwvRBqEgVY8rKB

~ - Katherine E . Reed, Ph .D . 3M Environmental, Health and Staff Vice President Safety Operations P. 900 Bush Avenue, Building 42-2E-26 PO Box 3333 1 St. Paul, MN 55133-3331 651 778 433 1 3M //n/e gl-__.~ (1?T , Certified Mail Gor August 1, 2007 Document Processing Center EPA East - Room 6428 Attn : Section 8(e) ~ Y T' A Office of Pollution Prevention and Toxic s US EP A 1200 Pennsylvania Avenue NW Washington DC 20460-000 1 NO CBI Re : TSCA 8(e) Substantial Risk Notice : Supplemental to Docket No . 8EHQ-0598-373 ; Sulfonate-based and Carboxylic-based Fluorochemical s To whom it may concern : 3M is submitt ing this notice to supplement its previous submissions on sulfonate-based and carboxylic-based fluorochemicals . 3M has received data from the MN Pollution Control Agency (MPCA) showing detectable levels of perfluorooctanoic acid (PFOA) in a small sampling of residential wells (less than 20) located in a discrete location near the 3M Cottage Grove production facility in the city of Cottage Grove, MN . The report provided by the MPCA is, at this time, incomplete . Once a final repo rt i s available, it will be forward to the EPA . If you have any questions or need additional information, please contact Deanna Luebker at (651) 737-1374 . Sincerely, 7~~x t ~.~u.~-e~ Katherine E . Ree d Staff Vice President, Environmental, Health and Safety Operation s III I 'i II~ I ~' I ~ ;i; I 1 ~ i Ilii;l ,~ii Ri, e 9 q 7 n (1 ,~ 1i 1 i 0 4 4'