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.

M*X6 - November 19,2004 O h m v 19 PH kt 13 fl tX ^<7^ {q By Hand Delivery Document Control Office (DCO) Office o f Pollution Prevention and Toxics U.S.

A fL a a _ 3 T 2 7 # Ui \ DuPont Legal Andrea V Malinowski, Es.4-^ 2h l o: 5 9 Wilmington Office Buildings 1007 Market Street Wilmington, DE 19898 Corporate Counsel DuPont Environmental 1007 Market Street & fy o 10 6- 743^ Wilmington, Delaware 19898 Phone: (302) 774-6443 Fax: (302) 774-4812 E-mail address: Andrea.V.Malinowski@usa.dupont.com CONTAIN NO CBI 3 CTJ CT** C-- 6 January 2006 7 \f r VIA OVERNIGHT MAIL TSCA Confidential Business Information Center (7407M) EPA East - Room 6428 Attn: Section 8(e) U.S.

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Katherine E.

Sanitized Version for the AR-226 Public Electronic Docket (CBI and copy restricted documents removed) Index DOCUMENT DESCRIPTION NO.

P-1 ACUTE TOXICITY TO THE MIDGE (CHIRONOMUS TENTANS) TEST SUBSTANCE Identity: Perfluorooctanolc acid, ammonium salt; may also be referred to as PFOA, PFOA ammonium salt, Ammonium perfluorooctanoate, FC-116, FC-126, FC-169, or FC-143.

P-1 January 15, 2009 DuPont Haskell Global Centers for Health and Environmental Sciences 1090 Elkton Road, P.O.

P-1 "McCrea, Deborah" <mccrea@taftlaw.com> 10/29/2009 10:08 AM To N CIC O P P T @ E P A c c "Bilott, R o b ert A."

Jean B.

310 Bonk Sfmei Decatur, Alabama 35601 256.353.291D tsla 256.353.3944 lax w w w .TTU NC.com geotechnical mm a n a l y t i c a l * m a t e r i a l s * e n v i r o n m e n t a l ........................................ ....... -- Decatur.

AkA.n6.oG%0 raceAnalytical" Field Services Division Pace Analytical Services, Inc. 1700ElmStreet, Suite200 Minneapolis, MN55414 Phone: 612.607.1700 Fax: 612.607.6444 Port St.

A/LJ.A6 - 032r I'mnivvcn Ink <&Chemicals, Inc.

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