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AR226-1523 FINAL REPORT RECEIVED OPPT NCIC 03 SEP 30 PM1:00 PROTOCOL 418-028 ORAL (GAVAGE) COMBINED REPEATED DOSE TOXICITY STUDY OFT-7706 WITH THE REPRODUCTION/DEVELOPMENTAL TOXICITY SCREENING TEST SPONSOR'S STUDY NUMBER: T-7706.1 FINAL REPORT DATE: 31 JULY 2003 PROTOCOL 418-028 - ORAL (GAVAGE) COMBINED REPEATED DOSE TOXICITY STUDY OFT-7706 WITH THE REPRODUCTION/DEVELOPMENTAL TOXICITY SCREENING TEST SPONSOR'S STUDY NUMBER: T-7706.1 TABLE OF CONTENTS SUBJECT 1.

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Lab0ratoyRep-t-Revision1 Analytical Reportof Data for PFOS Dietary LC50 Studiyn Northern Bobwhite (Sera and Liver) Laboratory Report No.FACT-TOX-129 (U2723) Testing Laboratory ~~~ ~ 3M Environmental Technology& Safety Services 3M Environmental Laboratory FluorineAnalybcal Chemistry Team (FACT) 2-3E-09 935 Bush Avenue, St.

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AR226-2175 Chris E Shoop 08/08/2001 05:23 PM To: cc: Subject: Debbie J Mulrooney/AE/DuPont@DuPont Robert L Ritchey/CL/DuPont@DuPont, M.

AR226-2258 y Todd M Krieger 02/20/2002 12:33 PM To: cc: Subject Steven H Swearingen/AE/DuPont@DuPont Debbie J Mulrooney/AE/DuPont@DuPont.

AR226-2294 DRAFT 3 DuPont Statement on January 7, 2003, Letter from Ohio EPA Regarding "Air impacts in Ohio due to emissions of C8" In a January 7, 2003, letter to Paul Bossert, Plant Manager at DuPont Washington Works, Ohio EPA Director Christopher Jones refers to "concern over ambient levels of C8, as predicted by air quality modeling of year 2000 actual emissions."

AR226-2315 /y Charles J Zarzecki 03/19/2003 11:31 AM To: cc: Subject Catherine A Barton/AE/DuPont WVC8 Modeling Cathie, I took a look at the location of the maximum predictions in the VW C8 modeling summary.

AR226-2344 ATTACHMENT 2 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPont Washington Works Facility Parkersbwg, 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 Wihnington, DE 19898 October 17,2003 ASH027184 1.

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