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AR226-2213 Current Permit/Application/PDF # 1823A 815D 8)5D 1353A Pre-ExIstIng 614A 614A 781 1953 2365A Note: For some vents the surfactant rate Is less than the total particulate reported In Air Emissions Inventory which can Include polymer dust, Note: tf emissions are sent to T61ZCE then emissions from T61FCE are reduced.

\ AR226-2392 ; ^ D u P o (t t TOs CCs ROGER 2IPFEL JOHN CRUM INTEROFFICE MEMORANDUM Dates Froms l2-Mav-19B7 03;06pm EST TONY PLAYTIS PLAYTI8 Oepti Tel Not TEFTECH 2775 ( ZIPFEL ) t CRUM ) Subjects C8 In Water Attached is a copy of the analytical report for our five water samples, which are identified as follows

AR226-2476 &-14.00 Jim: Per your request for assistance in wording a letter to your customers, here is a draft that may be helpful. 1(1 can be of further assistance, you can reach me at 863-2513.

AR226-2518 OHIO RIVER WATER SAMPLING RESULTS DUPONT WASHINGTON WORKS FACILITY AND THE LETART LANDFILL Date; November 2002 Project No,: D6WW7423 18983635J4000 18983632.00021 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Bartey Mill Plaza, Building 27 Wllmlngton, Delaware 1980S ASB019657 EID630089 I 1 1 1 1 1 1 1 ...I Il^iTi^1' 1 1 1 1 1 1 1 <

AR226-2557 - , , -<9 Andrew S Hartten 05/23/2001 05:21 PM To: Robert L Ritchey/CUOuPont@OuPontA, Hson A Crane/AE/DuPont@DuPont, George Woytowich/CL/DuPont@OuPont cc: Subject: Information on Washington Works Facility I received this today.

AR226-2584 OuPoni Ena'ineeritiB BarttYMillPlBZa.Blllg.27 Lancaster Pike 8. ftte. 141 Wilmington.OE 1980S DuPont Engineering May 7.2002 George R.

AR226-2686 CO AR226-2686 Perfluorinated Surfactants 'Dupont / UvA / RIKZ Meeting, 07-05-200; "Perfluorinatecr" surfactants A desk study on the use and environmental effects of perfluorinated surfactants in the Netherlands Floris Hekster & Pirn de Voogt A desk study commissioned by the Dutch Ministry of Transport, Public Works ____ ____ ___and Water Management ____ EID676803 Perfluorinated Surfactants 'Dupont / UvA / RIKZ Meeting, 07-05-2002 Outline of the presentation -y Goals ne ble of contents report / Methodology Available knowledge Remaining questions/ uncertainties A desk study commissioned by the Dutch Ministry ot Transport, Public Wolks ____ __ and Water Management ______ ___ EID676804 Perfluorinated Surfactants ' Dupont / UvA / RIKZ Meeting, 07-05-20 The study has three major goals 1.

AR226-2702 24 AR226-2702 TORONTO WORKSHOP MATERIALS September 13-14,2004 Atmospheric Chemistry of Fluorotelomer Alcohols (Part 2) Robert Waterland DuPont Engineering Research & Technol Wilmington, DE Outline do we for a initial gas phase reaction kinetics m photolysis of FTOHs do we a role of HOx and N0^ photolysis of fluoroaldehydes we heterogeneous chemistry know?

AR226-2707 29 AR226-2707 American Society of Mass Spectrometry (ASMS) Summary of DuPont Presentations ASMS Annual Meeting, 2004 Quantitative Determination of Extractable PFOA in Textiles and Carpets by LC/MS/MS Michael P.

AR226-2775 FOR DU FONT USE ONLY I.

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AR226-3112 Humingdon ABIOTIC DEGRADATION: HYDROLYSIS AS A FUNCTION OF pH (PRELIMINARY TEST) Sponsor DuPont Specialty Chemicals Jackson Laboratory Chambers Works Deepwater NJ 08023 USA Research Laboratory Huntingdon Life Sciences Ltd Eye Suffolk IP237PX ENGLAND Draft: 23 December 1998 Final: 2 February 1999 Bffi'Bpas'iSlyanHteed.