Document o93xzGeerQoQq7kEmEo9ZRLY7

gens. too6. ti' fg MZ76- illf-f DuPont Haskell Laboratory for Health and Environmental Sciences Elkton Road, P.O. Box 50 Newark, DE 19714-0050 October 23, 2006 VIA FEDERAL EXPRESS 8E H Q - 0 6 - 1 6 5 9 8 TSCA Document Processing Center (7407M) EPA East - Room 6428 Attn: Section 8(e) CONTAIN NO CP' U.S. Environmental Protection Agency 1201 Constitution Avenue, NW Washington, D.C. 20004-3302 Phone: 202-564-8940 88070000016 Dear Section 8(e) Coordinator: 8807000001 6 Re: Perfluorooctanoic Acid (PFOA) Updated Occupational Serum Sampling Results _______ First Chemical Corporation. Pascagoula. Mississippi co .rr> CO --I ' - 3 ;- TO -~r% :-q c O _o . rn ~i C . . .... m 0 o This submission provides updated PFOA serum sampling results for employees at the First Chemical Corporation (a wholly owned subsidiary of the DuPont Company) Pascagoula, Mississippi site. In 2003, samples were taken from 73 employee volunteers prior to the startup of a process to produce firefighting foam surfactants.1 In August 2006, samples were collected from 93 employees, some of whom had baseline samples collected in 2003. Results from the August 2006 sampling event, along with results from the prior sampling event in 2003, are provided in Attachment 1. The results from the 2006 sampling event show PFOA levels that are generally corroborative of the results from the December 2003 sampling event for the Pascagoula site.2 In addition, the results of both sampling campaigns (i.e., 2003 and 2006) show PFOA levels consistent with those previously reported to be found in the general population.3 O 03 CJ rn 1See AR-226-3474. 2 Levels for 73 employees tested ranged from a low o f 0.989 ppb to a high o f 12.1 ppb, with an average o f 5.85 ppb. 3 See Olsen G. W., Church T. R., Miller J. P., Burris J. M., Hansen K. J., Lundberg J. K., Armitage J. B., Herron R. M., Medhdizadehkashi Z., Nobiletti J. B., O'Neill E. M., Mandel J. H., Zobel L. R "Perfluorooctanesulfonate and other fluorochemicals in the serum o f American Red Cross adult blood donors" Environ Health Perspectives 2003, 111, 1892-1901] 2 'HSTJ- P- 2 TSCA Section 8(e) Office October 23,2006 Page 2 These results have been provided in summary form to the Mississippi Department of Environmental Quality (MDEQ). A copy of the document provided to MDEQ is included as Attachment 2 to this letter. While DuPont does not believe this information is substantial risk information reportable under TSCA 8(e), DuPont is submitting the information to the TSCA 8(e) office in view of the Agency's continued interest in perfluorinated substances. Sincerely, / A.'Michael Kaplan, F ly ). Director - Regulatory Affairs and Occupational Health (302) 366-5260 Attachments (6 pages)