Dawson, CIH, CSP DuPont Company PFOA in Blood Serum Dordrecht Works.

Inhalation Approximate Lethal Concentration o f H-22359 in Rats DuPont HL-1997-00273 3.

Does not contain TSCA CBI Substance Tested; Synonys/Qther Codes: GENERAL INPORHATION Control Substance DuPont HLO 2B9-W KAmSA Lab.

AR 226 - 3270 472 dels --~ - AR 226 3290 `TRADE SECRET Study Title H-25425: Subchronic Toxicity 90-Day Gavage Study in Rats with One-Generation Reproduction Evaluations Volume 5 of 5 `Laboratory Project ID: DuPont-11418 TEST GUIDELINES: U.S.

TRADE SECRET Study Title H-24761: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Laboratory Project ED: DuPont-5591 AR226-3190 DuPont-5591 AUTHOR: Carol Finlay, B.A, STUDY COMPLETED ON: November 20, 2001 PERFORMING LABORATORY: E.I. du Font de Nemours and Company Haskell Laboratory for Health and Environmental Elkton Road, P.O.

--a PFOA: Lactational and Placental Transport Pharmacokinetic Study in Rats DuPont 13309 LIST OF FIGURES Page FIGURE | MEAN BODY WEIGHTS OF FEMALE RATS DURING GESTATION

AR226-2573 COMPILATION OF HISTORICAL C-8 DATA DUPONT WASHINGTON WORKS MAIN PLANT AND LANDFILLS Date: January 2002 Project No: D6WW7423 h^ CORPORATE REMEDIATION GROUP An A lliance between DuPont a n d URS Diam ond Bailey MWM eza, Building 27 Wilmington, Dataware 19805 JSO0X5042 1D 62 777 TABLE OF CONTENTS 1.0 Introduction......................... ................................. . ........... . 1-1 1.1 Document Organization................................ ............1-1 1.2 C-8 Historical Laboratory Analysis.............. 1.3 Physicochemical Data for Ammonium Perfluorooctanoate (C-8) .. ............1-2 1.4 References....................................................... .................................. ............1-2 2.0 Washington Works Main Plant...................................................... 2.1 Introduction.,....... ................................................... .............. 2.2 Environmental Setting.................................. ........................ 2.2.1 Geology.,............................................................... 2.2.2 Hydrology, Hydrogeology and Groundwater Flow 2.3 Water Quality........................... ............................................. 2.3.1 Surface Water Quality...................................... 2.3.2 Groundwater Quality........................................ 2.3.3 Drinlring/Tap Water Quality............................. 2.4 Site Conceptual Model................................................... 2.5 Data Gaps *****..

(y Debbie J Mulrooney 01/15/2002 03:21 PM To: cc: Subject: Robert F Pinchot/DEV/AE/DuPont@DuPont Model Results Rob, The attached spreadsheet shows the vapor concentrations at the four specific receptor locations.

AR226-2173 Debbie J Mulrooney 08/06/2001 10:35 AM To: cc: Sublecl: carrington@mall.dep.state.wv.us Catherine A Barton/AE/DuPont DuPont Draft Modeling Protocol Chris, Attached Is a draft modeling protocol.

Frame (DuPont, Haske Laboratory for Health and Environmental Science), DuPont-15261, June 25, 2004

AR226-2209 Roger J Zipfel 11/02/2001 04:23 PM * To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Subject: Info on C-8 density Debbie, attached is the msds for C-8 in the powder form, it says that the solids density is 0.4-0.5. i think this is the bulk density of the powder.

AR226-2257 /F Steven H Swearingen L' 02/20/2002 09:43 AM To: Debbie J Mu Irooney/AE/DuPontSj'DuPont cc: Robert F Pinchot/DEV/AE/DuPont@DuPont, Todd M Krieger/AE/DuPont0DuPont Subject: Environmental Impact Study Several months ago for Rob Pinchot you did a screening study of ground level exposures for APF0.

AR226-2209 ^ Roger J Zipfel 11/02/2001 04:23 PM To: cc: Subject: Debbie J Mulrooney/AE/DuPont@DuPont Info on C-8 density Debbie, attached is the msds for C-8 in the powder form.

Auer, We appreciate the opportunity to meet with you and your staff on November 10, 2004 to review work being conducted by DuPont, or sponsored in whole or in part by DuPont, with respect to PFOA and telomers. vPelresaisoen)fipnrdeastetnatcehdedbytoDtuhPiosnletttaetrtahicsompeyetoifntgh.e charts (CBI version and redacted Very truly yours, Robert W.

Debbie J Mulrooney 01/15/2002 03:21 PM To: Robert F Pinchot/DEV/AE/DuPont@DuPont cc: Subject: Model Results Rob, The attached spreadsheet shows the vapor concentrations at the four specific receptor locations.