AR226-2277 Robert I Wevodau 05/21/2002 09:36 AM To: George L Clowes_Jr/CL/DuPont@DuPont, Ravinder Singh/CL/DuPont@DuPont, Michael T Evans/AE,'DuPont@DuPont, Michael G McClusky/AE/DuPont@DuPont, Cynthia E Read/AE/DuPont@DuPont, Ta-Wei Fu/SE/DuPont@DuPont cc: Stephen J Gissy/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont, Karl G Kronberg/AE/DuPont@DuPont Subject: C8 Modeling W e are anticipating th at TERA will soon release an annual exposure level for C8.

Ann Bradley/STB/DUP@DUP, John R Bowrnan/AE/DuPont@DuPont, Stephen J Gissy/AE/DuPont@DuPont, Oscar T Gaiza/AE/DuPont@DuPont, David M Rurak/AE/DuPont@DuPont, Debbie J Subject: Mulrooney/AE/DuPont@DuPont, H David Ramsey/SE/DuPont@DuPont Re: Call-in Number.

. ___ ______ To: Robert F Pinchot/DEV/AE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont cc; David M Rurak/AE/DuPont@DuPont, H David Ramsey/SE/DuPont@DuPont, Stephen J Gissy/AE/DuPont@DuPont, Robert L Ritchey/CL/DuPont@DuPont, John J Mentinl</CUDuPont@DuPont, Bernard J Rejlly/AE/DuPont@DuPont, John R Bowman/AE/DuPont@DuPont, Andrea V IVIalinowski/AE/DuPont@DuPont.

AR226-2220 O .. jiy L Ron J Buchanan 11/29/2001 10:45 AM < To: Robert F Ptnchot/DEV/AE/DuPont@ DuPont cc: Debbie J Mulrooney/AE/DuPont@ DuPont, Steven L Grise/AE/DuPont@ DuPont, Mary A Kaiser/AE/DuPont DuPont, Roger J Zipfel/AE/DuPont DuPont, Ta-W ei Fu/SE/DuPont@ DuPont, Bernard J Reilly/AE/DuPont DuPont, David M Rurak/AE/DuPont@ DuPont, Chri3 E Shoop/AE/DuPont@ DuPont, Robert L Ritchey/CL/DuPont@ DuPont, Charles J Zarzedd/AE/DuPont DuPont, Stephen T Breske/AE/DuPont@ DuPont Subject: Re: M ulit M edia Consent Order APFO data requirements ft) Rob...

AR226-2335 \ & Ann K M asse 06/08/2003 06:30 PM To: Irene A Legiec/AE/DuPont@DuPont, Catherine A Barton/AE/DuPont@DuPont, Charles J Zarzecki/AE/DuPont@DuPont cc: Subject: M A S S BA LA N C E TEAM - EN V IRO N M EN T AL SA M P L IN G T his will be a good meeting for you to attend.

Timothy P Mccann/DuPont@DuPont, Kathleen A Shellon/AE/DuPontQDuPont, David M Rurak/AE/DuPont DuPont, Paul J Bosseri/AE/DuPont DuPont, Dawn D Jackson/GL/DuPont DuPont, Robbin Baner(ee/AE/DuPont@DuPont, George A AInstey/SE/DuPont DuPont, Andrew S Hartlen/AE/DuPont@DuPont, M.

AR226-2555 Robert F Pinchot 05/11/2000 07:31 A M ______ To- David M Rurak/AE/DuPont@PuPont, Michael McCord/AE/DuPont@DuPont, Robert J Cavanaugh/DuPont@DuPont, Luk Q'Haenens/UR/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont, Anthony J Playtis/Cl/DuPont@DuPont, Arie J Vermeulen/6UR/DuPont@DuPont, Gerald L Kennedy/AE/DuPont@DuPont, William R Berti/Ai/DuPont@DuPont, John Gannon/AE/DuPont@DuPont, Robert L Rltchey/GUDuPont@DuPont, Andrew S Hartten/AiyDuPont@DuPont, Susan S Mileti/DuPont@DuPont co: Andrea V Malinowski/A/OuPont@DuPont, Maurice Astorga/AE/DuPont@DuPont, Richard J Angiullo/AE/DuPent@DuPont, Bernard J Reilly/AE/DuPont@DuPont, Gary W Jepson/AE/DuPont@DuPont Subject: PFOA EPA Request As many of you know, the Office of Pollution Prevention and Toxics in the US EPA has requested that DuPont supply a large amount of information on Perfluorooctanoate (PFOA or G-8).

(See Exhibit F) W 0116069.1 000002 Richard Hefter January 26, 2004 Page 3 9. 5/6/81 - DuPont Memo Re: Proposal To Lower Acceptable C-8 Blood Level To 0.004 ppm (4 ppb) (EID096478-80) 10. 5/14/81 - DuPont Washington Works C-8 Blood Results (EID713817-19) (names redacted); 11. 5/14/81 - DuPont Chambers Works C-8 Blood Results (EID713820) (name redacted); 12. 5/14/81 - DuPont Charts Re: C-8 Blood Testing Results (EID090084-5); 13. 5/15/81 - DuPont CR&D Haskell Laboratory C-8 Blood Results (EID713821-2) (names redacted); 14. 5/19/81 - DuPont Spruance, Virginia C-8 Blood Results (EID713827-9) (names redacted); 15. 5/19/81 - DuPont Washington Works C-8 Blood Results (EID713825-26) (names redacted); 16. 5/19/81 - DuPont Washington Works C-8 Blood Results (E1D713823-4) (names redacted); 17. 5/20/81 - DuPont Washington Works C-8 Blood Results (EID713834-5) (names redacted); 18. 5/20/81 - DuPont Chestnut Run C-8 Blood Results (EID713832-3) (names redacted); 19. 5/20/81 - DuPont Circleville, Ohio C-8 Blood Results (EID713836-7) (names redacted); 20. 5/20/81 - DuPont Fairfield, Connecticut C-8 Blood Samples (EID713830-1) (names redacted) 21. 5/21/81 - DuPont AJAX, Ontario C-8 Blood Samples (EID713838-9) (names redacted); 22. 6/5/81 - DuPont Memo Re: Program To Monitor Level Of Organic Fluorine (Measured As C-8) In Blood (EID080707-9); W 0116069.1 000003 Richard Hefter January 26, 2004 Page 4 23. 7/13/81 - DuPont Mechelen, Belgium C-8 Blood Results (EID713842-3) (names redacted); 24. 7/13/81 - DuPont Photo Products Rochester, New York C-8 Blood Results (EID713840-1) (names redacted); 25. 7/16/81 - DuPont Washington Works C-8 Blood Results (EID713849-50) (names redacted); 26. 7/16/81 - DuPont C-8 Blood Results Reported To Wilmington, Delaware (EID713844-6) (names redacted); 27. 7/16/81 - DuPont Spruance, Virginia C-8 Blood Results (EID713851-3) (names redacted); 28. 7/16/81 - DuPont Photo Products Brevard, North Carolina C-8 Blood Results (EID713854-5) (names redacted); 29. 7/16/81 - DuPont Dordrecht, Netherlands C-8 Blood Results (EID713847-8) (names redacted); 30. 7/20/81 - DuPont Washington Works C-8 Blood Results (E1D713856-7) (names redacted); 31. 7/24/81 - DuPont Spruance, Virginia C-8 Blood Results (EID713858-9) (names redacted); 32. 7/28/81 - DuPont Fairfield, Connecticut C-8 Blood Results (EID713860) (name redacted); 33. 7/31/81 - DuPont Memo Re: C-8 Blood Sampling Program (EED510244-51); 34. 8/7/81 - DuPont Memo Re: C-8 Blood Sampling Program (EID079552-3); 35. 8/19/81 - DuPont Blood Results Reported To Wilmington, Delaware (EID713861-2) (names redacted); 36. 8/21/81 - DuPont Washington Works C-8 Blood Results (EID713863-5) (names redacted); W 0116069.1 000004 Richard Hefter January 26, 2004 Page 5 37. 8/27/81 - DuPont Chart Re: C-8 Blood Results - Chambers Works, New Jersey (EID110665); 38. 9/1/81 - DuPont Memo Re: Communication Of C-8 Blood Results To DuPont Chambers Works, New Jersey Employees (EID110659-64); 39. 9/8/81 - DuPont Washington Works C-8 Blood Results (EID713866-8) (names redacted); 40. 9/15/81 - DuPont Memo Re: Proposed DuPont C-8 Blood Sampling Program For Employees At Shimizu, Japan (EID079371-5); 41. 9/81 - DuPont Memo Re: C-8 In Blood Transparencies (EID080743-7); 42. 9/29/81 - DuPont Washington Works C-8 Blood Results (EID713869-71) (names redacted); 43. 10/6/81 - DuPont Washington Works C-8 Blood Results (EID713872-4)(names redacted); 44. 10/20/81 - DuPont Washington Works C-8 Blood Results (EID713875-6) (names redacted); 45. 10/27/81 - DuPont Washington Works C-8 Blood Results (EID713877-9) (names redacted); 46. 11/3/81 - DuPont Washington Works C-8 Blood Results (EID713880-82) (names redacted); 47. 12/1/81 - DuPont Memo Re: C-8 Blood Levels In Females Transferred Out Of The Teflon Divisions: Washington Works (EID080677-92); 48. 12/2/81 - DuPont Washington Works C-8 Blood Results (EID713883-5) (names redacted); 49. 12/2/81 - DuPont Circleville, Ohio C-8 Blood Results (EID713886-7) (names redacted); W 0116069.1 000005 Richard Hefter January 26, 2004 Page 6 50. 1/6/82 - DuPont Washington Works C-8 Blood Results (EID713888-90) (names redacted); 51. 1/18/82 - DuPont Washington Works C-8 Blood Results (EID713891-3) (names redacted); 52. 2/19/82 - DuPont Memo Re: Trends In Blood C-8 Levels For Various Teflon Operating Groups: Washington Works (EID079349-52); 53. 4/5/82 - DuPont Memo Re: Blood Tests - Employees Potentially Exposed To C-8 (EID096456); 54. 5/12/82 - DuPont Memo Re: 3M Method For Analysis Of Blood Serum For C-8 (EID072179-81); 55. 5/12/82 - DuPont Memo Re: Fluoride In Blood Related To HFPO (EID096455); 56. 7/6/82 - DuPont Memo Re: C-8 Blood Sampling Program (EID087880); 57. 7/14/82 - DuPont Memo Re: Trends In Blood C-8 Levels For Various Teflon Employee Groups (EID079049-57); 58. 7/14/82 - DuPont Memo Re: C-8 Air And Blood Sampling (EED082729-31); 59. 7/29/82 - DuPont Memo Re: Retention Of C-8 In Blood Of Teflon Employees (EID079294-6); 60. 8/6/82 - DuPont Memo Re: Retention Of C-8 In Employees' Blood (EID080662); 61. 8/6/82 - DuPont Memo Re: C-8 Blood Sampling Program (EID080657); 62. 8/25/82 - DuPont Memo Re: C-8 In Human Blood (EID072164-6); 63. 9/28/82 - DuPont Memo Re: C-8 In Blood Of Teflon Employees (EID0806

AR226-2296 ^y David M Rurak 02/06/2003 08:19 AM To: cc: Subject: Patricia D Buoncuore/AE/DuPont@DuPont Ann Bradley, Robbin Banerjee/AE/DuPont@DiiPont, Andrea V Malinowski/AE/DuPont@DuPont, Paul J Bossert/AE/DuPont@DuPont, Catherine A Barton/AE/DuPont@DuPont, Gerald L Kennedy/AE/DuPont@DuPont, JillH Hogan/AE/DuPontVincent Atriano/SSD/DUP@DUP@DUPONT_MHUB, Paul J Bossert/AE/DuPont@DuPont, John R Bowman/AE/DuP6nt@DuPont.

AR226-2160 C hris E S hoop 07/12/2001 01:17 P M _____________ __ ___________________ To: cc: Subject: Robert F Pinchot/DEV/AE/DuPont@ DuPont, Debbie J Wlulrdoney/AE/DuPont@DuPont David M Rurak/AE/DuPont@DuPont, H David Ramsey/SE/DuPont@DuPont, Stephen J Gissy/AE/DuPont@DuPont, Robert L Ritchey/CL/DuPont@DuPont, John J Mentink/CL/DuPont@DuPont, Bernard J Reilly/AE/DuPont@DuPont, John R Bowman/AE7DuPont@DuPont, Andrea V Malinowski/AE/DuPont@DuPont, Oscar T Garza/AE/DuPont@ DuPont, Maurice Astorga/AE/DuPont@DuPont, Catherine A Barton/AE/DuPont@DuPont Re: Air dispersion modeling strategy 0 Rob / Debbie, Here's a table of the data requested.

J Scott DeBee/CL/DuPont@DuPont, Robert L Ritchey/CL/DuPont DuPont, Roger W DuWSE/DuPont DuPont, Thomas E Gant/SE/DuPont DuPont, Stephen P Bailey/CL/DuPont DuPont, Barbara J Oeem/SE/DuPont@DuPont, Alison A Crane/AE/DuPont@DuPont cc: Paul E Rowan/SE/DuPont DuPont, Charies J Refshauge/AE/DuPont, Peter S Welcker/AE/DuPont, Cynthia H Kirschner/AE/DuPontDuPont Subject 9/18/00 Water Samples Empore filtration/extraction followed by both FFIR and Mass Spec testing were done on the three water samples brought in yesterday.

AR226-2163 Chris E S hoop 07/16/2001_ 01:38 PM To: Robert F Pinchot/DEV/AE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont cc: David M RuraWAE/DuPorrt@DuPont, H David Ramsey/SE/DuPont@DuPont, Stephen J Gissy/AE/DuPont@DuPont, Robert L Ritchey/CUDuPont@DuPont, John J Mentink/CUDuPont@DuPont, Bernard J Reilly/AE/DuPont@DuPont, John R Bowman/AE/DuPont@DuPont, Andrea V Malinowski/AE/DuPont@DuPont, O scar T Garza/AE/DuPont@DuPont, Maurice Astorga/AE/DuPont@DuPont, Catherine A Barton/AEVDuPont@DuPont Subject: Air Dispersion Modeling Data Rob / Debbie, I have updated the table I sent Friday to include the vents from the not yet submitted Research Semiworks application.

Diane R Shom per 05/10/2002 07:32 A M To: George H Senktet_Jr/AE/DuPont @ DuPont, R Clifton W ebb/AE/DuPont@ DuPont, Martha L Rees/AE/DuPont@ DuPont, John R Bowman/AE/DuPont@ DuPont, Kathleen H Forte/AE/DuPont@ DuPont, Isldoros J Zanikos/AE/DuPont@ DuPont, Janet H W aters/CL/DuPont@ DuPont, Tim othy P M ccann/DuPont@ DuPont, Kathleen A Shellon/AE/DuPont@ DuPont, David M Rurak/AE/DuPont@ DuPont, Paul J Bossert/AE/DuPont DuPont, Dawn D Jackson/CL/DuPont DuPont, Robbin Banerjes/AE/DuPont @ DuPont, G eorge A AlnsJey/SE/DuPont@ DuPont, Andrew S Hartten/AE/DuPont@DuPont, M .

DuPont admits that Dr.

AR226-2297 y David M Rurak 02/10/2003 06:52 PM To: cc: Subject: Seiichi Tanaka/PO/DuPont@DuPont Ta-Wei Pu/CL/DuPont@DuPont, Hidetaka Hiromatsu/PO/DuPont@DuPont, Katsunosuke Kitagawa/PO/DuPont@DuPont, Kazuaki Suzuki/PO/DuPont@DuPont, Akito Abe/AE/DuPont@DuPont, Catherine A Barton/AE/DuPont@DuPont Re: CEG Calculation at Shimizu Site D Tanaka-san, Please allow me to clarify a couple of items: 1) First of all, the CEG is not calculated for a plant site.