.

Marshall J.

FOR IMMEDIATE USE.

Attachments to Letter to C.

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Dyneon Sanitized Letter ARBAE_ IRT7O April 8,2003 AR A `The Honorable Charles M.

AR226-1539 ATTACHMENT 1 YEAR 2002 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPont Washington Works Facility Parkersburg, West Virginia RECEIVED OPPT NCIC 2003 October 31 8:25AM Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wilmington, DE 19898 October 17, 2003 Year 2002 Air Dispersion Modeling Analysis October 17, 2003 Page 2 1.

BACK TO MAIN 3M Company Page 1 of 36 FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

FINAL REPORT Epidemiology, 220-3W-05 Medical Department 3M Company St.

BACK BIODEGRADATION TEST SUBSTANCE Identity: Remarks: N-ethylperfluorooctane sulfonamidoethanol; may also be referred to as N-EtFOSE alcohol. (1-Octanesulfonamide, N-ethyl1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8-heptadecafluoro-N-(2-hydroxyethyl)-, CAS # 1691-99-2).

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DuPont-13267 Study Title Ammonium Perfluorooctanoate: Age Effect on the Plasma Concentration in Post-Weaning Rats Following Oral Gavage AUTHOR:Xing Han, Ph.D.

Sponsor: 3M St.

AR226-2186 11^ !