DuPont 2004 Multi-Media Sampling Plan WV and OH January 15, 2004 AR226-2354 EXP000190 Jammy 15,2004 DuPon, "Phase 2" Media to be Sampled bv DuPont in 2004 in WV and OH Air Private Water Sources Public Water Sources Soil Biota EXP000191 [above listing excludes sampling required by permit] January 1 5 ,2 0 0 4 DuPont DuPont Washington Works Area Air Modeling/Samnling Completed - Air dispersion modeling completed and updated for ambient air concentrations (Time periods: year 2002 and 9/02 - 8/03, AR226 and ECA docket) In-progress - Fence line sampling in progress to compare results from ambient air sampling and air dispersion modeling to understand how modeling predictions relate to measured ambient air concentrations EXP000192 January 1 5,2004 DuPont 3 Air Objective: Compare results from ambient air sampling to air dispersion modeling.

AR226-2496 .Analysis Report LancasterLaboratories f Wh&Gquaiitykasckrm a n a ly tic a l r e su l t s Prqrwed foP CRO-RLDuPomde Nemours & Co Barley Mill Plaza, Bldg. 27 Lancaster race & Route 141 WUrmogtoilLB 19805 302-992^76?

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................................................................................................

NOVEMBER 15,2004 EPA PRODUCTION VOLUME 28 BIODEGRADATION /DEGRADATION VOLUME I of II 1 ~0021453.txt h TELOMER PRODUCTS - SURFACTANTS ABSTRACTS c Thermal Degradation D.

AR226-3205 DuPont-2927 ______Supplement No. 1 TRADE SECRET Study Title H-24018: Biopersistence Screening 10-Dose Oral Gavage Study in Rats Supplement No. 1 Laboratory Project ID: DuPont-2927 Author: Carol Finlay, B.A.

K athfine E.

P-1 <OE>.

SEVERN TRENT LABORATORIES ANALYTICAL REPORT JOB NUMBER: 239580 Prepared For: Weston Solutions, Inc. 1400 Weston Way Building 5-2 West Chester, PA 19380-1499 Project: Confidential Decatur - FC Investigation Attention: Jai Kesari Date: 09/02/2005 Signature Name: Richard C.

4nhi %, j r n t L L <lfl- J ffly AP-AG - U 3ft UNITED STATES ENVIRONMENTAL PROTECTION AGENCY WASHINGTON, D.C. 20460 N O V ?

61 f f 3M Specialty Materials 3M Center St.

AR226-2507 COMPILATION OF HISTORICAL C-8 DATA DUPONT WASHINGTON WORKS MAIN PLANT AND LANDFILLS Date: January 2002 Project No: D6WW7423 h^ CORPORATE REMEDIATION GROUP An ASSamnbetmmn DuPontend tlHS Diamond B u ky Mill Ptea.

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 *****..

2195 Front Street Logan, OH 43130 OhisEfft Stale of OMo Envlim W eatU PttrteeUoo Agency Southeast D istrict Office TELE; (740) 385-8501 FAX; (740) 385-6490 AR226-2607 Bob Jatt>Governor Christopher Jones, Director May 13,2002 Mr.

AR226-2733 1 The miracles o f science Study Title ADSORPTION-DESORPTION SCREENING STUDIES OF AMMONIUM PERFLUOROOCTANOATE Author William R.

AR226-3150 DuPont-4199 TRADE SECRET Study Title H-23960: Local Lymph Node Assay (LLNA) Laboratory Project ID: DuPont-4199 A u t h o r : Gregory S.