Hugh J Campbell_Jr/AE/OuPont@DuPont, Bernard J Reilly/A6/DuPontDuPont, Andrew S Hartten/AE/DuPont@DuPont, Isidoros J ZanlRos/A6/DuPont@DuPont Maurice Astorga/AE/DuPont@DuPont Notes from our masting last week Attached are the notes from our meeting last week.

Ann Bradley/STB/DUP@ DUP, Robert F Pinchot/DEV/AE/DuPont@DuPont, Robert L Ritchey/CL/DuPont@DuPont cc: Subject: Final Modeling Report H ere is the m odeling report fo r the 2000 actual e m issio n s with the m odifications that w e talked about this m orning.

Ann Bradtey/STB/DUP@DUP, Bemaid J RBllly/AE/DuPont@DuPont, DWATKINS@MAIL.DEP.STATE.WV.U8.

AR226-2198 Chris E Shoop 08/28/2001 04:10 PM To: cc: Subject Stephen J Gissy/AE/DuPont@DuPont ' Karl G Kronberg/ABDuPont@DuPont, Robert I Wevodau/SE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont Emissions Modeling for Permit Applications Steve, Karl, Bob, and I feel that we will need to have modeling data for the applications we plan to submit or have already submitted Tor FP, PEP, and PFA.

AR226-2503 George Woytowich 08/06/2001 09:16 AM To: H David Ramsey/SE/DuPont@DuPont cc: Dawn D Jacl<son/CL/DuPont@DuPont Subject: Re: Lubeck Testing Bl

AR226-2256 Chris E Shoop 02/1 B/2002 12:30 PM To: cc: Subject: Debbie J Mulrooney/AE/DuPorrt@DuPont Robert I Wevodau/SE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont Re: Case 10 Questions Q Debbie, The production rates in Case 10 were from forecasts for about 2007.

DuPont Report, "C-8 Data Summary Report: Consent Order GWR-2001-019: DuPont Washington Works Facility and Local, Letart and Dry Run Landfills" (February 2003); 4.

DuPont Report: DuPont Modeling Methodology And Results [PFOA Air Emissions]: Shimizu Site (June 2003) (EID719411-20).

The DuPont OvalLogo, DuPont', Themiracles ofscience', and Teflon' are registered trademarks or trademarks ofEl. duPont de Nemours andCompany or its affiliates, onlyavailable under license and subject to qualification.

DuPont also captures for recycle a significant portion o f used C8. 4.

AR226-2328 J Bari Ruiter 04/08/2003 07:34 AM To: cc: Subject: Maria S Angelo/AE/DuPont@ DuPont, Richard S Vickery/AE/DuPorrt@DuPont, Thomas R Morgan/AE/DuPont@DuPont, Mary A Kaiser/AE/DuPont@ DuPont Stephen W Constable/ABDuPont@ DuPont, Catherine A Barton/AE/DuPont@DuPont Robert A Reich/AE/DuPont@ DuPont ' Chambers W orks: Effluent and River Draft Sampling Plan M aria, Rick and Tom 1upgraded the Phase I sam pling plan fo r the effluent and rive r based on your comments.

DuPont Telomer B Alcohol Product Observed in Both Studies Teeth effects At High DoSeS (>100mg/kg/day) - Increased hepatic poxidation - Increased liver weight - Increased kidney weight Increased plasma and urine fluoride Only Observed for 8-2 Telomer B Alcohol Increased incidence of focal liver necrosis at 25 and 125 mg/kg/day Increased incidence of chronic progressive nephropathy in 125 mg/kg/day females Telomer Research Program (TRP) Asahi Glass, Clariant, Daikin, DuPont Company Sanitized Does not contain TSCA CBI 25 Nov. 2002 17 Developmental Toxicity Study DuPont Telomer B Alcohol Mixture Maternal findings - Decreased body weight at 500 mg/kg/day Fetal findings - Increased fetal variations at 500 mg/kg/day Maternal and Developmental NOEL = 200 mg/kg/day Telomer Research Program (TRP) Asahi Glass, Clariant, Daikin, DuPont Company Sanitized Does not contain TSCA CBI 25 Nov. 2002 18 8-2 Telomer B Alcohol Developmental Toxicity Study Developmental Toxicity in Rodents (25/sex/dose; 4 groups) - Dosing: oral gavage (OPPTS 870.3800) Days 6-20 of gestation Proposed dose levels of 25, 125, and 250 mg/kg/day - Parameters In-life (body weights, clinical signs, etc.)

DuPont Telomer B Alcohol Product Observed in Both Studies Teeth effects At High Doses (>100mg/kg/day) - Increased hepatic oxidation - Increased liver weight - Increased kidney weight Increased plasma and urine fluoride Only Observed for 8-2 Telomer B Alcohol Increased incidence of focal liver necrosis at 25 and 125 mg/kg/day Increased incidence of chronic progressive nephropathy in 125 mg/kg/day females Telomer Research Program (TRP) Company Sanitized 25 Nov. 2002 17 Asahi Glass, Clariant, Daikin, DuPont Does not contain TSCA CBI Developmental Toxicity Study DuPont Telomer B Alcohol Mixture Maternal findings - Decreased body weight at 500 mg/kg/day Fetal findings - Increased fetal variations at 500 mg/kg/day Maternal and Developmental NOEL = 200 mg/kg/day Telomer Research Program (TRP) Company Sanitized 25 Nov. 2002 18 Asahi Glass, Clariant, Daikin, DuPont Does not contain TSCA CBI 8-2 Telomer B Alcohol Developmental Toxicity Study Developmental Toxicity in Rodents (25/sex/dose; 4 groups) - Dosing: oral gavage (OPPTS 870.3800) Days 6-20 of gestation Proposed dose levels of 25, 125, and 250 mg/kg/day - Parameters In-life (body weights, clinical signs, etc.)

AR226-2043 To: Roger J Zipfel/AE/DuPont@DuPorrtI Partick J Cavanagh/CL/DuPont@DuPont cc: Jack L Offenberger/AE/DuPont@DuPont, Anthony J Playtis/CL/DuPont@DuPont Subject: Special C-8 Results, 6/8/99 Results o f the nonroutine C-8 testing you requested: Recovery Building Roof 0 .54 mpb Smoking Area pump failure - no result Inside Recovery Building 1.15 mpb Roof Outside Monomer CR 0.31 mpb Recovery Building CR field blank 0.07 mpb < 0 ,0 5 mpb Samples were taken 1:25 to 5:40 PM, 6/8/99.

Ann Bradley/STB/DUP@DUP, Robert F PinchoVDEV/AE/DuPont@DuPont, Robert L Ritchey/CL/DuPont@DuPont Final Modeling Report Q Here is the modeling report for the 2000 actual emissions with the modifications that we talked about this morning- Debbie Final Modeling report 4-17-02-c RP026997 EID583190