00 f t I Z I O - / H NOTE TO FILE - AR 226/OPPTS 50639 DATE: March 14, 2001 FROM: Karen Lannon SUBJECT: 1/4/01 Meeting with Department of Defense (DoD) concerning Aqueous Film Forming Foam (AFFF) A meeting was held on January 4, 2001 to discuss alternatives to PFOS-based AFFF and possible DoD plans for transitioning away from PFOS-based AFFF.

3IM C orporate Toxicology and Regulatory Services 3M Center, Building 0220-02-E-02 St.

A R 6 - ISOS FEBRUARY 2003 SURFACE WATER MONITORING REPORT FOR WASHINGTON WORKS FACILITY AND LOCAL, LETART AND DRY RUN LANDFILLS WASHINGTON, WV Date: April 2003 Project No.: D6WW7423.01 18983632.00028 18983633.00026 18983634.00026 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 0003S3 NO CBI WVDEP 17572 Surface W ater Monitoring Report Table of Contents TABLE OF CONTENTS 1.0 Introduction...................................................................................................................1 2.0 C-8 Analytical Reporting............................................................................................. 2 3.0 Washington Works Facility.........................................................................................4 4.0 Local Landfill............................................................................................................... 5 5.0 Letart Landfill.............................................................................................................. 6 6.0 Dry Run Landfill.......................................................................................................... 7 7.0 References.................................................................................................................... 8 Table 1.0 Table 2.0 Table 3.0 Table 4.0 TABLES C-8 in Surface Water - Washington Works Facility C-8 in Surface Water - Local Landfill C-8 in Surface Water - Letart Landfill C-8 in Surface Water - Dry Run Landfill Figure 1.0 Figure 1.1 Figure 1.2 Figure 2.0 Figure 2.1 Figure 2.2 Figure 3.0 Figure 3.1A Figure 3.IB Figure 4.0 Figure 4.1 FIGURES Site Location Map - Washington Works Facility Surface Water Sample Location Map - Washington Works Facility C-8 Concentration Map February 2003 - Washington Works Facility Surface Water Site Location Map - Local Landfill Surface Water Sample Location Map - Local Landfill C-8 Concentration Map February 2003 - Local Landfill Outfalls Site Location Map - Letart Landfill Surface Water Sample Location Map - Letart Landfill Rt. 33 Stream and Brinker's Run Surface Water Sampling Locations Letart Landfill Site Location Map - Dry Run Surface Water Sample Location Map - Dry Run Landfill FEB SW M R.doc Apr. 15, 03 Wilmington, DE i 0G03S4 Surface W ater Monitoring Report Table of Contents Figure 4.2 C-8 Concentration Map February 2003 - Dry Run Landfill Outclass Appendix A Appendix B Appendix C Appendix D Appendix E Appendix F APPENDICES Laboratory Analytical Data Reports - Washington Works Facility Chain-of-Custody Records - Washington Works Facility Laboratory Analytical Data Reports - Local Landfill Chain-of-Custody Records - Local Landfill Laboratory Analytical Data Reports - Dry Run Landfill Chain-of-Custody Records - Dry Run Landfill FEB SW M R.doc Apr. 15, 03 Wilmington, DE ii 000385 Surface W ater Monitoring Report Introduction 1.0 INTRODUCTION A multi-media consent order (Order No.

AR226-1751 STUDY TITLE Extraction of Potassium Perfluorooctanesulfonate from Quail Serum and Quail Liver for Analysis Using HPLC-Electrospray/Mass Spectrometry DATA REQUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher STUDY COMPLETED ON September 06, 2001 PERFORMING LABORATORY / TESTING FACILITY Centre Analytical Laboratories, Inc.

AR226-1527 SRPT r ' t3,fc Study No.

Study TMe FC-143: Two Year Oral Toxkct-Oncogemcity Study in Rats PEERREVeWOFOVAME8 APEPOexutptehBeroroCirm*s.4Me7na4tanlnP,aDth.Vol.Mog.yLaboratories, lac.

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AR 2.2.6 0 6 0 6 RECEIVED n n n t UTtr <SJi> DuPont Haskell Laboratory for Toxicology and Industrial Medicine July 6,2000 Mr.

AR226-2169 k, Robert L Ritchey r 07/27/2001 03:43 PM To: Chris E Shoop/AE/DuPont@DuPont, Karl G Kronberg/AE/DuPont@DuPont, Debbie J Wlulrooney/AE/DuPont@DuPont cc: Stephen J Gissy/AE/DuPont@DuPont, David F Altman/SE/DuPont@DuPont, Andrea V Mallnowski/AE/DuPont@DuPont, Robert F Pinchot/DEV/AE/DuPont@DuPont Subject: DuPont Washington Works Model Input Files Chris and Kart, I guarantee a check by Hanshaw against permit applications re: stack flows and velocities.

AR226-2218 Chris E Shoop 11/29/2001 09:06 AM To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Subject: Re: Revised Spreadsheet O Debbie, The semiworks facility has been operating since long before the permitting regulations were in place.

AR226-2243 ( j?

SITE SCREENING LEVEL ASSESSMENTS FOR PFOA AND THE RELEVANCE OF SOIL SAMPLING Date: O ctober20,2003 Project No.: 18983753.00034 CO RPO RATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 EXP001453 Site Screening Level Assessm ents for P FO A and the R elevance of Soil Sampling Table of Contents TABLE OF CONTENTS Executive Summary............................................................................................ 1.0 Introduction.................................................................................................................. 1 OO U* U ^ 2.0 Data Presentation..................... 2.1 Development o f a Generalized PFOA Screening Level Site Conceptual M odel........................................................................................................ 2.2 Laboratory Studies o f PFOA and Field Sample Verification................. 2.2.1 TTie Behavior o f PFOA in W ater.... ........................................... 2.2.2 Adsorption/Desorption o f Ammonium Perfluorooctanoate to Soil............................................................................................... 2.2.3 Little Hocking Water Association Investigation Results........... 2.2.4 Washington Works RFI Soil Sampling Results.......................... 3 3.0 Summary............................................................ ...................................................... io 4.0 References................................................................................................................. 11 Table 1 Table 2 Table 3 Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 TABLES Washington Works RFI Soil PFOA Results Washington Works RFI Surface Soil PFOA Results Washington Works RFI ADP SWMU Soil PFOA Results FIGURES PFOA Screening Level Assessment Model Comparison o f K ^'s for PFOA and Other Chemicals Little Hocking Water Association Well Field Soil PFOA Results Washington Works RFI Soil PFOA Results Washington Works RFI Surface Soil PFOA Results Washington Works RFI ADP SWMU Soil PFOA Results soil position paper4.doc Oct. 20, 03 Wilmington, DE EXP001454 I Site Screening Level A ssessm ents for PFO A and the Relevance of Soil Sampling Executive Summary EXECUTIVE SUMMARY DuPont's extensive implementation o f both media specific assessment modeling tools and comprehensive on-site and off-site soil, surface-water, and groundwater monitoring for perfluorooctanoate1at the Washington Works site in West Virginia allowed for compilation o f a generalized screening level assessment model.

Investigation Results Report2.wpd AR226-2348 Page 11 October 2 3 ,2 0 0 3 Mr.

JEB. 26.2002 9:34AM afWSBtoiocte. lesam eovemmoni Center 12HQ.

Dupont Fluoroproducts AR226-2612 Chestnut Run Plaza P. 0 .