Document B5X1a4y6wmO8yg8kz4xoYnq7m

AR226-3584 p. 1 Andrea Y . Mall inowski Corporate Counsel o~ nON~ DuPont Legal t~J Wilmington Office Buildings 1007 Market Street January 18, 2006 VIA OVERNIGHT 1J Lb-1 - MAIL VIA ELECTRONIC Wilmington, DE 19898 302-774-6443 Tel 302-774-4812 Fa x andrea .v .malinowskiusa .dupontcom E-mail MAI L f 7~ TSCA Confidential Business Information EPA Docket OPPT-2003-0012 Center (7407M) c/o Ms . Mary Dominiak EPA East - Room 6428 Office of Pollution Prevention and Toxics Attn : Section 8(e) dominiak2mar r .epa .go v 1201 Constitution Avenue, NW Washington, DC 20004-330 2 Dear Sir/Madam : C, ~~~~~~~ C131 Re : EPA Docket OPPT-2003-0012 - Perfluorooctanoic Acid Private Well Water Sampling - Fayetteville, N C Q -_ This letter is being submitted to inform the Environmental Protection Agency (EPA) of the results y located in North Carolina. Specifically, two private drinking water wells were sampled from th ; one well in the Point East subdivision (located about 5050 feet from the facilit elocamunity yPFOAstackndleh10ftromclseaiyprtbounld)aherwl in the Marshwood Lake area (located about 4530 feet from the same stack and about 700 feet from the closest facility property boundary) . Both samples were analyzed, at two separate commercial laboratories, for the compound perfluorooctanoic acid (PFOA or C-8) . The private well owners have been notified of the results for their respective well . Both laboratories reported that there was no detectable amount of PFOA in the Point East well sample. One laboratory reported that there was less than a quantifiable amount of PFOA in the Marshwood Lake well sample, meaning that the PFOA concentration was less than 0 .0 13 g/L or less than 0 .013 parts per billion . The second laboratory reported a measured quantity of PFOA at 0 .0 11 g/L or 0 .011 parts per billion . This measurement was just above that laboratory's level of, quantification for PFOA of 0 .010 g/L or 0 .010 parts per billion. A copy of the reports from both laboratories will be forwarded separately when final . C~) Although DuPont does not believe that the information provided in this letter meets the criteria for TSCA section 8(e) reporting, DuPont is forwarding this information to the EPA public docket identified above and, as a precaution, to the EPA TSCA 8(e) office, in light of the Agencyzs continued interest in perfluorinated substances . Very truly yours, -~ Andrea V . Malinowski l II f f f I IIIII6 1 II 1111 - i635 1 -_~ofwatersmplingcyodutebhDPnCompayFetvilWrksfc E .I . du Pont de Nemours and Company