woes 600C0Z Mary Ellen Weber Mary Dominiak February 3, 2004 Page2 4. 4/24/81 - DuPont Memo Re: Analyses OfTeflon Felt Samples For Residual C-8 (EID217111-3); 5. 5/29/81 - DuPont Memo Re: Analytical Research On PFOA In Products (EID715298-302); 6. 6/10/81 - DuPont Report Re: PFOA In Teflon (EID714129-42); 7. 7/6/81 - DuPont Memo Re: Heat Treated Packing Yams (EID715312-3); 8. 7/81 - DuPont Monthly Report Re: PFOA At Spruance, Virginia And Products (EID715274-5); 9. 820/81 - DuPont Report Re: PFOA At Spruance, Virginia Plant (EID715237-63); 10. 8/31/81 - DuPont Report Re: PFOA In Teflon Products (EID715195-98); 11. 9/17/81 - DuPont Report Re: Status Of PFOA At Spruance, Virginia Plant And Products (EID714050-62); 12. 9/30/81 - DuPont Memo Re: PFOA In Teflon Products (EID715206-7); 13. 3/82- DuPont Report Re: PFOA In Teflon Process (EID714222-50); 14. 6/90- Battell Europe Report Re: AnalysisOfFumes Resulting From The Curing Operation In The ManufactureOfTeflon@-Coated Articles (EID902116-60); 15. 5/31/91 - DuPont Letter To Arlon Re: Exhaust Gas Tests (EID902003-7); 16. 1992 - DuPont Technical Report: PFOA Concentration In Spruance Plant Wastewater (EID714251-64); 17. 10/3/94 - DuPont Letter To First Brands Corporation Re: C-8 In Cat Litter (EIDO78812-4); 18. 10/20/94 - DuPont Memo Re: Proposed Use Of C-8 In Shaving Gel (GKOO1446-7); wore 000C02

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That memo revealed that WVDEP's new 17.5 ppb GenX DWEL was purportedly derived from information "provided by DuPont" and used a sub-chronic (short-term) rat study that "DuPont indicates" found a No Observable Adverse Effect Level ("NOAEL") of 10 mg/kg/day.

Debbie Todd M Krieger ^ Todd M Krieger 02/20/2002 12:33 PM To: cc: Subject: Steven H Swearingen/AE/DuPont@DuPont Debbie J Mulrooney/AE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPontQDuPont Re: Environmental Impact Study Q The stack height is 85ft.

AR226-2251 Catherine A Barton ^ 01/30/2002 05:12 PWI To- Mark H Russell/AE/DuPont@DuPont cc: Robert F Pinchot/DEV/AE/DuPont@DuPont, Andrew S Hartten/AE/DuPont@DuPont, Theodore H Carski/AE/DuPont@DuPont Subject: Re: Draft modeling report D Mark, Thanks so much for your great work.

m Mary J Emails 08/19/2002 04:05 PM To; Andrew S Hartten/AE/DuPont@DuPont cc: Katherine L Davls/AE/DuPont@DuPont Subject: Dasher Letter Andrew, Attached is your letter in PDF format.

Ta-Wei Forwarded by Ta-Wei Fu/SE/DuPont on 11/12/2002 05:08 PM -- Stephen R Peck ^ 11/12/2002 05:08 PM To: cc: Subject: Ronald V Crosmun/CL/DuPorrt@DuPont John E Crum/SE/DuPont@DuPont, Ta-Wei Fu/SE/DuPont@DuPont, Leo M Lech/DuPont@DuPont, Thomas W Mahlberg/SE/DuPont@DuPont, Mark E Reeder/SE/DuPont@DuPont Eureka!

Ann Bradley/STB/DUP@DUP, Andrea V Malinow$ki/AE/DuPont@DuPont, David M Rurak/AE/DuPont@DuPont, Robert L Ritchey/CUDuPont@DuPont cc: Isidores J Zanikos/AE7DuPont@DuPont, George H Senkler_Jr/AE/DuPont@DuPont, John R Bowman/AE/DuPont@DuPont, Laura R Weiter/AE/DuPont@DuPont (bcc: Andrew S Hartten/AE/DuPont) Subject; WVDEP Letter Folks, Attached is the letter I received from George Dasher, W VDEP G IST member last week.

AR226-2320 Ann K Masse 04/02/2003 06:03 PM To: Irene A Legiec/AE/DuPont@DuPont, Mark D Richmond/AE/DuPont@DuPont cc: Catherine A Barton/AE/DuPont@DuPont Subject: Dispersion modeling data folks, W e need to have this data to Cathy by the end of next week (4/11).

W 00047 A nthony J P laytis 08/02/2000 02:43 PM To: Robbin Baneijee/AE/DuPont@DuPont, Rex M Branstetfcer/AE/DuPont@DuPont, Becky Szakats Oines/CL/DuPont@DuPorrt, Pavm D Jackson/CL/DuPont@DuPont, Robin C Leonard/AE/DuFtonUgjDuPont, Jack L Offenberger/AE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont, Younger L Power_MD/SE/DuPont@DuPonl^ H David Ramsey/AE/DuPont@DuPant, Arie J Vermeulen/EUR/DuPont@DuPont, Roger J Zipfet/AE/DuPont@DuPont cc: Subject: Preliminary C-8 Blood Results ForWashington Works Attached is a table showing the distribution of this year's results for C-8 blood levels.

L DuPont de Nemours and Company ("DuPont").

Hanmer: Re: DuPont Response to Lettet_oMr,.

Hanmer: Re: DuPont Response to Letter of Mr.

AR226-2320 y Ann K Masse 04/02/2003 08:03 PM To: cc: Subject: Irene A Legiec/AE/DuPont@DuPont, Mark D Richmond/AE/DuPont@DuPont Catherine A Barton/AE/DuPont@DuPont Dispersion modeling data folks, We need to have this data to Cathy by the end of next week (4/11).

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