/DuPont@DuPont, Koichi lnagaki/PO/DuPont@DuPont, Kazuaki SuzuM/PO/DuPont@DuPont, Katsunesuke Kitagawa/PO/DuPont@DuPont, Kazuaki Yola>yama/ro/DuPont@>OuPBnf, Susan L SI(rotsky/AE/DuPo'nt@DuPont, Shikho ltaya/PO/DuPont@DuPont.

AR226-2513 l Andrew S Harttcn 04/01/2002 11:08 AM T o : Hidetaka Hiromatsu/PO/DuPont@DuPont c c : David M Rurak/AE/DuPont@ DuPont, Seiichi Tanaka/PO/DuPont@ DuPont, V ic E Kleinfelter/AE/DuPor>t@DuPont, Etsuo Takenouji/DuPont@DuPont, Koichi lnagaki/PO/DuPont@DuPont, Kazuaki Suzuki/PO/DuPont@ DuPont, Katsunosuke Kitagawa/PO/DuPont@ DuPont, Kazuaki Yokovama/PO/DuPorrt@DuPont, Susan L Skrotsky/AE/DuPont@ DuPont, Shikiho itaya/PO/DuPont@ DuPorrt, George H Senkler_Jr/AE/DuPont@ DuPorrt, Diane R Shom per/AE/DuPont@ DuPont, Ta-W ei Fu/SE/DuPont@ DuPont, O scar T Garza/AE/DuPont@ DuPont, Isidoros J Zanikos/AE/DuPont@ DuPont Sub ject: R e: A PFO v s .

AR226-2512 puLu : I J . ' L` Hidetaka Hiromatsu 04/02/2002 09:04 AM To : Andrew S Hartten/AE/DuPont@DuPont c c : David M Rurak/AE/DuPont@DuPont, Seiichi Tanaka/PO/DuPont@DuPont, V ic E Kleinfelter/AE/DuPor*t@DuPont, Etsue Takanouji/DuPont@DuPont, Koichi lnagaki/PO/DuPont@DuPont, Kazuaki Suzuki/PO/DuPont@DuPont, Katsunosuke Kitagawa/PO/DuPorrt@DuPont, Kazuaki Yokoyama/PO/DuPont@DuPont, Susan L Skrotsky/AE/DuPont@ DuPont, Shikiho ltaya/PO/DuPont@DuPont, George H Senkler_Jr/AE/DuPont@DuPorttr Diane R Shomper/AE/DuPont@DuPont, Ta-W ei Fu/SE/DuPont@DuPont, O scar T Garza/AE/DuPorrt@DuPont, Isidores J Zanikos/AE/DuPont@DuPont Subject: Re: APFO vs.

AR226-2195 S David M Rurak 08/28/2001 07:59 AM To: Ta-W ei Fu/SE/DuPont@DuPont co: Stephen J Gissy/AE/DuPont@DuPont, Oscar T Garza/AE/DuPont@DuPont, Fred M Lentz/SE/DuPont@DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPont, Raymond C Butterworth/CL/DuPont@DuPont, John R Flynn/AE/DuPont@DuPont, Am y L Brown/AE/DuPont@DuPont, Thomas W Mahlberg/SE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont, Roger J 2ipfel/AE/DuPont@DuPont, Alvin H Gibson_Jr/CL/DuPont@DuPont, Debbie J M ulrooney/AE/DuPont@ DuPont DSubject: Re: ACTION ITEMS FROM APFO DISPERSION MODELLING T a-W ei, You have my support to proceed.

.^ ^ To: Hidetaka Hiroinatsu/PO/DuPont@DuPont cc: David M Rurak/AE/DuPont@DuPont, Seiichi Tanaka/PO/DuPont@DuPont, Vie E Kteinfelter/AE/DuPbrrt@DuPont, Etsuo Takenouji/DuPont@DuPort, Koicht lnagaki/PO/DuPont@>DuPont, Kazuaki Suzuki/PO/DuPont@DuPont.

Paul K Mathur/CUDuPont@DuPont, David M Rurak/AE/DuPont@DuPont, Raymond C Butterworth/CUDuPont@DuPont, John R Flynn/AE/DuPont@DuPont, Amy L Brown/AE/DuPont@DuPont, Thomas W Mahlberg/SE/DuPort@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont, Alvin H Gibson_Jr/CL/DuPont@DuPont, Kenneth P Kelch/AE/DuPont@DuPoHt Re: ACTION ITEMS FROM APFO DISPERSION MODELLING D Fred, The modeling that we are doing for the APFO emissions is a different type than that which Stan Urbanik has done for Monomers.

AR226-2193 ,y Oscar TGarza 08/28/2001 07:44 AM To: cc: Subject: Ta-Wei Fu/SE/DuPont@DuPont Stephen J Gissy/AE/DuPont@DuPont, Fred M Lentz/SBDuPont@DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPont.

nchot/DEV/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPort, Roger J Ziptel/AE/DuPont@DuPont, Alvin H Gibson_Jr/CUDuPont@DuPont.

Debbie J Mulrooney 08/28/2001 08:12 AM To: Fred M Lentz/SE/DuPont@D.uPont cc: Ta-W ei Fu/SE/DuPont@DuPont, Stephen J Gissy/AE/DuPont@DuPont, Oscar T Garza/AE/DuPont@ DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPont, David M Rurak/AE/DuPont@DuPont, Raymond C Butterworth/CUDuPont@DuPont, John R Flynn/AE/DuPont@DuPont, Amy L Brown/AE/DuPont@DuPont, Thomas W Mahlberg/SE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont, Alvin H Gibson_Jr/CL/DuPont@DuPont, Kenneth P Kelch/AE/DuPont@DuPont DSubject: Re: ACTIO N ITEM S FROM APFO DISPERSION MODELLING Fred, The modeling that we are doing for the APFO emissions is a different type than that which Stan Urbanik has done for Monomers.

DuPont does not concede that the subject matter of such Requests are relevant in the present action or that DuPont's responses are admissible.

AR226-2193 Oscar T Garza ' 08/28/2001 07:44 AM To: TarWei Fu/SE/DuPont@DuPont cc: Stephen J Gissy/AE/DuPont@ DuPont, Fred M Lentz/SE/DuPont@ DuPont, Robbin Banerjee/AE/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPont, David M Rurak/AE/DuPont@ DuPont, Raymond C Butterworth/CL/DuPont@DuPont, John R Flynn/AE/DuPont@DuPont, Amy L Brown/AE/DuPont@DuPont, Thomas W Mahlberg/SE/DuPont@ DuPont, Robert F PInchot/DEV/AE/DuPont@ DuPont, Chris E Shoop/AE/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont, Alvin H Gibson_Jr/CL/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont Subject: Re: A C TIO N IT E M S FR O M A P FO D IS PER SIO N M O D E LLIN G D It looks like we have to pursue the stack additions for 5 vents as an immediate issue - I think we just need to be sure the 20-30 ft is truly enough for these stacks.

AR226-2514 From: Dick J C Meijer on 04/03/2002 07:38 AM CET To: cc: Subject: Ta-Wei Fu/SE/DuPorrt@DuPont Ton Rbelen^UR/DuPont@DuPont, Stephen R Peck/SE/DuPont<s>DuPont, Yoshihiro Hayatsu/PO/DuPont@DuPont, Hidetaka Hiromatsu/PO/DuPont@DuPont, Paul K Mathur/CL/DuPont@DuPbnt, Akito Aba/AE/DuPont@DuPont.

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

Robert F Pinchot 11 /28/2001 07:49 AM Robert F Pinchot 11/28/2001 07:49 AM To: cc: Subject: Debbie J Mulrooney/AE/DuPont@DuPont, Steven L Grise/AE/DuPont@DuPont, Mary A Kaiser/AE/DuPont@DuPont, Ron J Buchanan/AE/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont Ta-Wei Pu/SE/DuPont@DuPont, Bernard J Reilly/AE/DuPont@DuPont, David M Rural</AE/DuPont@DuPont, Chris E Shoop/AE/DuPont@DuPont, Robert L R"rtchey/CL/DuPont@DuPont.

(See Exhibit F) wontsoss 1 000002 Richard Hefter January 26, 2004 Page3 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 (EID713823-4) (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- Blood Resulis (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 (EID00707-9); wotsoss 1 000003 Richard Hefler 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 Resuls 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 (EID713856-7) (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. 731/81 - DuPont Memo Re: C-8 Blood Sampling Program (EIDS10244-51); 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. 821/81 - DuPont Washington Works C-8 Blood Results (EID713863-5) (names redacted); Wontaten1 000004 Richard Hefter January 26, 2004 Page S 37. 827/81 - DuPont Chart Re: C-8 Blood Result-s Chambers Works, New Jersey (EID110665); 38. 9/1/81 - DuPont Memo Re: Communication OfC-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. 10720/81 - 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 (EID0S0677-92); 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); wortsosn1 000005 Richard Hefter January 26, 2004 Page 6 50. 1/6/82 - DuPont Washington Works C-8 Blood Results (EID713888-90) (names redacted); SI. 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 (EIDO72179-81); 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 (EID0S7880); 57. 7/14/82 - DuPont Memo Re: Trends In Blood C- Levels For Various Teflon Employee Groups (EID079049-57); 58. 7/14/82 - DuPont Memo Re: C-8 Air And Blood Sampling (EID082729-31); 59. 7/29/82 - DuPont Memo Re: RetentionOfC-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 (EID0S0657); 62. 825/82 - DuPont Memo Re: C-8 In Human Blood (EID072164-6); 63. 9/28/82 - DuPont Memo Re: C-8 In Blood Of Teflon Employees (EIDO80637-44); 64. 10/7/82 - DuPont Memo Re: C-8 Elimination Rates (EID080633); 65. 11/1/82 - DuPont Memo Re: C-8 Blood Sampling Results (USEPA10530-1); wortsosn1 900006 Richard Hefter January 26, 2004 Page 7 66. 3/4/83 - DuPont Memo Re: Proposed C-8 Blood Testing (EID096447); 67. 8/11/83 - DuPont Memo Re: Update On C-8 Blood Sampling Program (EID079277-81); 68. 9/21/83 - DuPont Tralee Park C-8 Blood Tests Results (USEPA10528-9) (names redacted); 69. 10/17/83 - DuPont Notes Re: C-8 Blood Te