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AR226-2095 t : > Test Results Industrial Hygiene Sample Date Range U te s 12/31/95 Concentration Range Action Level 100% iCCeftSSASDiWULa Sam ple* DuuuiruautivoaneT*ve fTMr**a*ft,int*ov^*e**e"N^*a*a**ii P e is Chem ical BTO: 08 TEFLON LOG: 113 P/S - SHIFTMECHANIC(58MD) 4/495 21067 420 P S8MD e-a/Fc-143 BTO; 06 TEFLON LOG : 706 P/S-FINE POWDER PACKOUT(O0PJ) 3/8/96 20968 405 P 3/8/95 20969 405 P none C-a/FC-143 06PJ C8/FC-143 BTO: 06 TEFLON LOG 731 M S - INSIDE F.P.

AR226-2146 ATMOSPHERIC MODELING STUDIES WASHINGTON WORKS NEAREST LUBECK NEIGHBOR ANNUAL EXPOSURE IS CA. 0.03 UG/M3 (10% CEG) ASSUMING 85% UTILXTY/90% EFFICIENCY OF FINE POWDER DRIER SCRUBBER.

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.

232.1 441572.0. 4346794.0 441577.11,4346769.53 441582.21.4346745.05 441587.32.4346720.58 441592.42.4346696.11 441597.53.4346671.63 441601.0. 4346655.0 441579.88.4346641.63 441558.75,4346628.26 441537.63.4346614.89 441522.0. 4346605.0 441503.0. 4346601.0 441483.86,4346584.91 441464.73,4346568.83 441445.59,4346552.74 441434.0. 4346543.0 441448.9,4346522.92 441457.0. 4346512.0 441444.34,4346490.44 441431.68.4346468.89 441420.0. 4346449.0 441401.14.4346432.59 441382.28,4346416.18 441363.42.4346399.77 441344.56,4346383.36 441325.69,4346366.95 441320.0. 4346362.0 441324.51,4346337.41 441329.02,4346312.82 441333.54,4346288.23 441338.05.4346263.64 441340.0. 4346253.0 441364.75.4346256.51 441389.51.4346260.01 441414.26.4346263.52 441439.01.4346267.02 441463.77.4346270.53 441488.52.4346274.03 441513.27.4346277.54 441538.02.4346281.04 441562.78.4346284.55 441587.53.4346288.05 441612.28.4346291.56 441637.04.4346295.06 441661.79.4346298.57 441686.54.4346302.07 441711.3.4346305.58 441736.05.4346309.08 441760.8.4346312.59 441785.55.4346316.09 441810.31.4346319.6 441835.06,4346323.1 441859.81.4346326.61 441884.57.4346330.12 441909.32.4346333.62 441912.0. 4346334.0 441908.73.4346358.78 441905.45.4346383.57 44905.0,4346387.0 AR226-2167 EID447781 . 441929.58,4346391.54 441954.17.4346396.09 441978.75.4346400.63 442003.33,4346405.18 442027.92.4346409.72 442052.5,4346414.27 442077.08,4346418.81 442101.67.4346423.36 442126.25.4346427.9 442143.0. 4346431.0 442146.0. 4346416.0 442170.16.4346422.44 442176.0. 4346424.0 442180.0. 4346402.0 442204.18.4346408.36 442228.35.4346414.72 442252.53.4346421.09 442275.0. 4346427.0 442272.99,4346451.92 442270.97.4346476.84 442268.96,4346501.76 442267.0. 4346526.0 442291.43,4346531.29 442315.87.4346536.58 442340.3.4346541.87 442364.74,4346547.16 442389.17.4346552.44 442413.61.4346557.73 442438.04.4346563.02 442462.47,4346568.31 442486.91.4346573.6 442498.0. 4346576.0 442493.0. 4346589.0 442517.57.4346593.6 442542.14,4346598.21 ' 4 4 2 5 6 6 . 7 2 , 4 3 4 6 6 0 2 . 8 1 442591.29,4346607.42 442615.86.4346612.02 442640.43.4346616.63 442665.01,4346621.23 442689.58.4346625.84 442714.15.4346630.44 442738.72,4346635.05 442763.3,4346639.65 442787.87,4346644.25 442812.44,4346648.86 442837.01,4346653.46 442861.58.4346658.07 442886.16,4346662.67 442910.73,4346667.28 442935.3.4346671.88 442959.87,4346676.49 442984.45.4346681.09 443009.02.4346685.7 443033.59.4346690.3 443048.0. 4346693.0 443043.47.4346717.59 443041.0. 4346731.0 443065.57,4346735.61 EID447782 443090.14,4346740.22 443114.71,4346744.84 443139.28.4346749.45 443163.85,4346754.06 443188.43,4346758.67 443213.0. 4346763.28 443237.57,4346767.89 443262.14,4346772.51 443286.71,4346777.12 443311.28.4346781.73 443335.85.4346786.34 443360.42,4346790.95 443366.0. 4346792.0 443361.52.4346816.59 443357.04,4346841.19 443352.55,4346865.78 443348.07.4346890.38 443343.59,4346914.97 443339.11.4346939.57 443334.62,4346964.16 443330.14.4346988.76 443327.0. 4347006.0 443302.48.4347010.86 443277.96.4347015.73 443253.43.4347020.59 443228.91.4347025.46 443206.0. 4347030.0 443181.38.4347034.34 443156.76,4347038.69 443155.0. 4347039.0 443130.04,4347037.64 443105.07,4347036.28 443080.11.4347034.92 443055.15.4347033.57 443030.18,4347032.21 443008.0. 4347031.0 442996.0. 4347028.0 442971.0. 4347028.16 442946.0. 4347028.31 442921.0. 4347028.47 442896.0. 4347028.63 442871.0. 4347028.78 442846.0. 4347028.94 442836.0. 4347029.0 442825.0. 4347030.0 442800.03.4347028.86 442775.05.4347027.73 442750.08.4347026.59 442737.0. 4347026.0 442716.0. 4347032.0 442691.26.4347028.38 442666.53.4347024.77 442641.79,4347021.15 442617.05,4347017.54 442592.31.4347013.92 442586.0. 4347013.0 442574.0. 4347015.0 442560.0. 4347012.0 442545.0. 4347018.0 442520.1,4347015.79 442495.2,4347013.57 442470.29.4347011.36 442445.39,4347009.15 442420.49,4347006.93 442395.59,4347004.72 442370.69.4347002.51 442365.0. 4347002.0 442357.0. 4347005.0 442350.0. 4346997.0 442329.0. 4346996.0 442315.0. 4346995.0 442302.0. 4346990.0 442285.0. 4346985.0 442260.02,4346985.96 442259.0. 4346986.0 442252.0. 4346983.0 442227.7,4346977.11 442219.0. 4346975.0 442194.88.4346968.42 442186.0. 4346966.0 442161.12.4346963.51 442156.0. 4346963.0 442131.44.4346958.36 442106.87,4346953.71 442082.31,4346949.07 442057.74.4346944.42 442033.18.4346939.78 442008.61,4346935.14 441984.05,4346930.49 441959.48,4346925.85 441955.0. 4346925.0 441930.39,4346920.61 441905.78,4346916.21 441881.17,4346911.82 441871.0. 4346910.0 441860.0. 4346910.0 441848.0. 4346898.0 441832.0. 4346895.0 441820.0. 4346891.0 441804.0. 4346886.0 441780.19,4346878.39 441756.37.4346870.79 441732.56,4346863.18 441732.0. 4346863.0 441708.82,4346853.63 441685.64,4346844.26 441685.0. 4346844.0 441663.0. 4346841.0 441640.0. 4346841.0 441619.52,4346826.66 441610.0. 4346820.0 441595.0. 4346819.0 441585.0. 4346808.0 441572.0. 4346794.0

AR226-2189 Chris E Shoop 08/24/2001 03:59 PM To: Debbie J Mulrooney/AEA)uPont@ DuPont cc: Roger J Zipfe!

AR226-2203 Robert F Pinchot 10/18/2001 02:30 PM To: ck Subject jh ans haw @ m ail.d ep.state.w v .us ' Debbie J Mulrooney/AE/DuPont@DuPont, Steven L Grise/AE/DuPont@DuPont, Bernard J Reilly/AE/DuPont@DuPont, M.

AR226-2234 Steven L Grise 12/12/2001 03:26:26 PM To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Bernard J Reilly/AE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont Subject: Re: C.O.

AR226-2301 fiy-J* Charles J Zarzecki 02/21/2003 01:43 PM To: Catherine A Barton/AE/DuPont ce: Subject: Snapshot Results Cathie, The snapshot resuts: 0.477 ug/m3 at the same property line receptor as before.

AR226-2361 September 2002 Throdgb August 2003 A ir Dispersion Modeling Analysis o f APFO Emissions (Revised) May 24,2004 Page 1 of 9 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS -------------------------------------- (Revised)-------------------------------- -- -- DuPont Washington Works Facility Parkersburg, West Virginia Prepared for: West Virginia Department of Environmental Protection Division o f Air Quality 7012 MacCorkle Ave, SE Charleston, WV 25304-2943 Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wilmington, DE 19898 C:\c8\c8_0803_report_revised May 24,2004 I E ID 775177 EID 775177 September 2002 Through August 2003 Air Dispersion Modeling Analysis o f APFO Emissions (Revised) May 24,2004 Page 2 o f9 1.

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% AR226-2750 Copies to: E.