Document evb2L0QgnEkYK063w8o8J5kOg

p. 1 auPONT May 24, 200 7 /~~ZZ6- 2 7 4?1 DuPont Haskell Laboratory for Health and Environmental Sciences Elkton Road, P .O . Box 5 0 G : Q3 Newark, DE 19714-0050 Via Federal Expres s Document Processing Center (Mail Code 7407M) Room 642 8 CONTAIN NO CBI Attention : 8(e)/FYI Coordinato rOficeofPolutionPreventionandToxic s U .S . Environmental Protection Agenc y 1201 Constitution Ave Washington, DC 20460., NW I IIII I IIIII I IIII II IIIII IIIII I, ~Il~li il~ll IIII I I I IIIII I!I 8 EH00rI44d Dear 8(e)/FYI Coordinator : 8EHQ-06-16446 Supplemental Submission This letter is submitted for your information and it supplements the above-identified 8EHQ submission. Specifically, provided with this letter is an interim final report titled as follows : Fayetteville PFOA, Exposure Assessment Report, Final Report [DuPont-22464 ] Report of Exposure Assessment of Measured Serum Perfluorooctanoic Acid (PFOA) Anion in the Manufacture of Ammonium Perfluorooctanoate (APFO) at Fayetteville, N C The study period covered is from process start-up through December 31, 2005 . The study itself is estimated to be completed by the end of 2009 . The serum biomonitoring data contained in this report were previously submitted to the Agency (see DuPont submission dated March 27, 2006 and assigned 8EHQ-06-16446) . The major objective of this study is to measure worker exposure by sampling airborne levels of PFOA and monitoring serum levels of PFOA anion in manufacturing, to provide supporting data to management and workers in the APFO areas, to evaluate the effectiveness of the industrial hygiene controls, and to effect changes in those controls as appropriate . It is not a study of the health status of the participants . Sincerely, G~ A . Michael Kaplan, Ph .D . ~ ~ !~ I I! I,I I i i Director - Regulatory Affairs and Occupational Health ~ IIIII) II~I ~~I II ;II IIII! ~I~li lII ; ; II~ II! ~ illll iI'I~ IIII I I 9 0 o G 0 0_ 4 AMK/BJD : clp (302) 366-5260 Attachment : 1- Report as identified above [DuPont-22464 (53 pages)]