A222&- Reduction of Perfluorooctanoic Acid (PFOA), Precursors, and Related Impurity Levels in Fluorotelomer Intermediates and Finished Products Presentation given to US EPA contained 48 total charts.

POLYMER PRODUCTS DEPARTMENT MANUFACTURING DIVISION AR226-2013 CC: M- S.

AR226-2177 Dupont - Washington Works - C8 Project N O T E S from S ite Inspection C hris Arrington and D ave Roberts ' August 9 ,2 0 0 1 10:0 0 a ;m . - 3 :00 p.m

AR226-2274 JOHN BENEDICT - C8 update from air quality Page 1 From : To: D ate: S ubject: Jesse Hanshaw DEE ANN STAATS 4/16/02 5:10PM C8 update from air quality Hi Dee Ann, W e are currently in the process of coordinating our modeling efforts with DuPont.

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.

AR226-2288 C h ris E Shoop 09/04/2002 12:49 PM___________________________ j___ To: Mohammad Rezaei/SE/DuPont@DuPont cc: Ta-Wei Fu/SE/DuPont@DuPont, Robert I Wevodau/SE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont, Debbie J Mulrooney/AE/DuPont@DuPont Subject FE P Stack Locations Mo, P e r our conversation, here's the sheet we assem bled for the m odeling o f C -8 em issions.

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 AR226-2368 EID419917 441912.0. 4346334.0 441908.73,4346358.78 441905.45.4346383.57 441905.0. 4346387.0 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 442566.72.4346602.81 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 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 EID419921

96 11:04AM SNTIR 3M Environmental Technology & Safety Services 935 Bush Avenue - Bldg. 2-3E-09 St.

AR226-2462 From: Daw n D Jackson on 06/23/99 07:55 A M To: Robert L Rrtchey/CL/DuPont@DuPont.

AR226-2518 I OHIO RIVER WATER SAMPLING RESULTS DUPONT WASHINGTON WORKS FACILITY AND THE LETART LANDFILL Date: November 2002 Project No,: D6WW7423 18983635,14000 18983632,00021 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 ' SB019657 E ID 630089 DRAFT Ohio River Water Sampling Results Table of Contents TABLE OF CONTENTS 1.0 Introduction............ ................................................................................ 2.0 C-S Analyses and Analytical R eporting........................................... ..... 3.0 Ohio River Water C-8 Results Near The Washington Works Facility 4.0 Ohio River Water C-8 Results Near the Letart Landfill...................... 5.0 Ohio River Parameters.................................................................. ......... 6.0 References................................................................................................

AR226-2592 GIST meeting notes August 12,2002 Minutes from the GIST meeting August 12,2002 The meeting began at approximately 9:10 am, in the Division o f Water Resources' conference room at 1201 Greenbrier St., Charleston, WY.

AR226-2689 11 AR226-2689 ABCTelomer Research Program O A lK m Ciariant 8-2 Telomer B Alcohol Biodegradation Research Scone and Rationale The Telomer Research Program (TRP) 1 is investigating the biodegradation potential and pathway(s) o f 8-2 Telomer B Alcohol (CsF17CH2CH2OH; CAS #678-39-7), a primary fluorotelomer intermediate.

AR226-2759 gnn nu POUT USE ONLY K I du Pont de Nemours and Company HHaasekke.llll ^U kiki mtono SJoad> TNeowkarlck>o lWDelaware 19711 " Study Inltiated/Completed 1/1/B - 11/3/ Material Submitted by c oiymer" rroduc.ts Dept.

AR226-2981 DU PONT HLR 879-92 HASKELL LABORATORY FOR TOXICOLOGY AND INDUSTRIAL MEDICINE STATIC.

Bye Irritation Test with H-21095 in Babbits Laboratory Project ID Haskell Laboratory Report No. 271-95 Author Carol Finlay ) Study Completed On April 20, 1995 Performing Laboratory E.