In total it is estimated the combined DuPont emissions and machine shop emissions to waste is 3.5 kg PTFE per year via manufacture.

. - - -- DuPont Washington Works Facility Parkersburg, West Virginia Prepared for: West Virginia Department of Environmental Protection Division of Air Quality 7012 MacCorkIe Ave, SE Charleston, WV 25304-2943 Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wunrington,DE 19898 C:\c8\c8_0803_report_Kvistd May 24,2004 ( EID775177 EID775177 September 2002 Through August 2003 Air Dispersion Modeling Analysis ofAPFO Emissions (Revised) May 24,2004 Page 2 of 9 1.

.: Sponsor: DuPont Specialty Chemicals E.

AR226-2343 ATTACHMENT 1 YEAR 2002 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPont W ashington W orks Facility Parkersburg, W est Virginia Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wilmington, DE 19898 October 17,2003 ASH027176 EXP015741 .

AR226-2652 AR226-2652 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPont Washington Works Facility Parkersburg, West Virginia Prepared for: West Virginia Department of Environmental Protection Division of Air Quality 7012 MacCorkle Ave, SE Charleston, WV 25304-2943 Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wilmington, DE 19898 October 17,2003 1.

Received from: Storage: E.I. duPont de Nemours & Co.

._______ ______ IID 156234 Main Messages for Today: The DuPont Washington Works site is well characterized and well understood, as a result of over 10 years of investigation and monitoring.

ATTACHMENT 2 AR226-1540 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPont Washington Works Facility Parkersburg, West Virginia RECEIVED OPPT NCIC 2003 October 31 8:25AM Prepared for: West Virginia Department of Environmental Protection Division of Air Quality 7012 MacCorkle Ave, SE Charleston, WV 25304-2943 Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wilmington, DE 19898 October 17, 2003 1.

Reea/A/DuPorTtOuPont, Andrea V Malinowski/AE/OuPontOuPont c: Subject: Environ Moncgrapn Forwarded by Bernard j R#iliy/AE/DuPont or 10/07/2001 09:55 AM From.

INTRODUCTION This study was conducted ;for E.I. duPont de Nemours & Co. to evaluate the dermal corrosivity produced by 15,615 1n rabbits.

HS-TORN BECBIPT BBOtffiSTBP JAN I 5 "898 Robert L. aitchey ' Senior Environmental Coatrol Consultant ' 3.1. dupont da Nemourg 6 Coir^iany Washington Woylts P.O.

D R Y R U N LANDFILL DuPONT, WASHINGTON WORKS PARKERSBURG, WEST VIRGINIA 8Vtoo> - E ID 950235 BXD950236 % rth LK| ?

.: 5444-84 DOT SKIN CORROSION TEST IH RABBITS TEST MATERIAL: 15.615 Submitted to; E.I. duPont de Nemours & Co.

Introduction DuPont conducted air dispersion modeling ofAPFO* emissions from its Washington Works facility located near Parkersburg, WV.

Hone available DuPont Specialty Chemicals E.