AR226-2573 COMPILATION OF HISTORICAL C-8 DATA DUPONT WASHINGTON WORKS MAIN PLANT AND LANDFILLS Date; January 2002 Project No: D6WW7423 h ^ CORPORATE REMEOIAT10N GROUP An Alliance between DuPOnt and URS Diamond Bailey MM SHOta, Building 27 Wilmingtwi, Dtttwait 196G5 JS0015042 EID620777 TABLE OF CONTENTS 1.0 Introduction............,....,.......................,...............--.......................................... 1-1 1.1 Document Organization.......................................................................... 1-1 1.2 C-8 Historical Laboratory Analysis........................................................... 1-1 1.3 Physicochemical Data for Animonium Perfluorooctanoate (C-8)................ 1-2 1.4 References................................................................................................. 1-2 2,0 Washington Worta Main Plant ...........................,...........................................,.,.....2-1 2.1 Introduction..,..,.....,............................-..--......,..........................................2-2 2.2 Environmental Setting...,....................................,...,.,.,.,....,,...........,...............2-3 2.2.1 Geology............,..,.,.,.,...................................,..,,..,............................2-3 2.2.2 Hydrology, Hydrogeology and Groundwater Flow..........,..,............2-3 2.3 Water Quality ..................................,..............................................................2-6 2.3.1 Surface Water Quality .....,..,.,.,................................................,,.......2-6 2.3.2 Groundwater Quality .......,,..,.........,.............................................,..,,2-6 2.3.3 Drinldng/Tap Water Quality .................,.,...,..,.,-.,....,.......................2-7 2.4 Site Conceptual Model ..,................................................................................2-7 2.5 DataGaps........-,.,...,....,...........................................,..-,...........,..................2-8 2.6 References..................................................--..................,..,...-,,,....,...............2-8 3.0 Local ]LandfiU....................................-.....,,,...,...........................:.................,..........3-l 3.1 Introduction ,......,...........................................-,......,........................................3-2 3.2 Eilvir&mnentalSetting.......,..,............,.................................,..........................3-2 3.2.1 3.2.2 Geology.................,,....................................,...,.,....,......,,......,........,..3-2 Hydrology, Hydrogeology and Groundwater Flow..........................3-3 3.3 Water Qualiy....,.................................................,..,.,.......,.............................3-4 3.3.1 Surface Water Quality ......................................................................3-4 3.3.2 Groundwater Quality .....................................,......,....,......,...............3-4 3.4 Site Conceptual Model...................,..,...,,..,....................................................3-5 3.5 DataGaps..........................................,........,.................................................-.3-6 3.6 References ....,..,..........,...,........1......................,..,.,.,,..,..........,.........................3-6 4.0 Letart Landfill........................... ,.................,......,.....................................,.............,4-1 4.1 Introduction ......-...............-..............,,.......,,.........................;..................,,,,,,,, 4-2 4.2 Environmental Settmg.........................................,..,......................................,4-2 4.2.1 Geology.........................................,,..................................................4-2 4.2.2 Hydrology, Hydrogeology and Grovndwater Flow..........................4-3 4.3 Water Quality ...,.........................................,...................................................4-4 4.3.1 Surface Water Quality ..............................,..........,............................4-4 4.3.2 Groundwater Quality.......................................,.,..............,...............4-5 4.4 Site Conceptual Model........................ ,..........................................................4-6 4.5 DataGaps.....,-................-.........-...,,,..................................-.....................,.4-7 4.6 References.............................;.......,.....,.,.................................................,......4-8 JS0015043 EID620778 Main Plant and Landfills Table of Contents 5.0 Dry Run Landfill .......................................................................................... ..5-1 5.1 Introduction........-....,...........--................................,...,............."......--....-- ..5-2 5.2 Environmental Setting........................................................,,,,..,,,,,,,,.,,........ ..5-2 5.2.1 5-2.2 Geology.......................................................................................... ..5-2 Hydrology, Hydrogeology and Groundwater Flow,.,....,....,,......... ..5,3 5.3 Water Quality................................................................................ ..5-4 5.3.1 Surface Water Quality ............................................................. ..5-4 5.3.2 Groundwater Quality ................................................................ ..5-4 5.4 Site Conceptual Model................................................................................ ..5-5 5.5 Data Gaps.................................................................................................. ,.5-6 5.6 References.......... ...........................,,...,,...,,.,,...--........................................ ,.5*6 TABLES Table 2.0 Table 2.1 A Table 2.1 B Table 2.1 C Table 3.0 Table 3.1A Table 3,1 B Table 4.0 Table 4.1 A Table 4.1 B Table 5.0 Table 5.1 A Table 5.1B Washington Works Main Plant Monitoring Wells Construction Data Washington Works Main Plant Analytical Data Table - Surface Water Washington Works Main Plant Analytical Data Table - Groundwater Washington Works Main Plant Analytical Data Table - Drinking Water Local Landfill Monitoring Wells Construction Data Local Landfill Analytical Data Tables - Surface Water Local Landfill Analytical Data Tables - Groundwater Letart Landfill Monitoring Wells Construction Data Letart LaodFdl Analytical Data Tables - Surface Water Letart Landfill Analytical Data Tables - Groundwater Dry Run Landfill Monitoring Wells Construction Data Dry Run Landfill Analytical Data Tables - Surface Water Dry Run Landfill Analytical Data Tables - Groundwater Figure 1.0 Figure 2.0 Figure 2.1 Figure 2.2 Figure 2.3 Figure 2.4A Figure 2.4B Figure 2.4C Figure 2.4D FIGURES Solubilities of CyF^ COOM in Water as a Function of Temperature Washington Works Main Plant Location and SWMU Map Washington Works Main Plant and Local Landfill 1-mile Radius Map Washington Works Main Plant Monitoring Well and Surface Water Sample Location Map Washington Works Main Plant Cross Section Location Map Washington Works Main Plant Cross Section A-A' Washington Works Main Plant Cross Section B-B' Washington Works Main Plant Cross Section C-C' Washington Works Main Plant Cross Section D-D' Compilation of hittBiy dale Draft 2rev.doc Mar. 11,02 Wilmtngton.

AR226-2178 Chris E Shoop 08/16/2001 03:27 PM To: Debbie J Muirooney/AE/DuPont@DuPont cc: Subject: Building Heights, etc.

Robert F PinchotflDEV/AE/DuPort@DuPont, DebbieJ Mulrooney/AE/DuPont@DuPonl, Bernard.)

C harles J Zarzecki 02/24/2003 02:43 PM To: Catherine A Barton/AE/DuPont co: Subject: Slid e s Cathie, Here they are.

S O HEM S AR226-2469 -o ; 8/7, DuPont Washinspim Worts P. 0.

Debbie J Mulrooney 01/29/2002 05:35 PM To: Robert F Pinchot/DEV/AE/DuPont@DuPont cc: Subject Watershed Deposition Results U Rob, Here are the deposition totals for the three different watersheds that we discussed.

EID747577 Charles J Zarzeeki 02/21/2003 03:08 PIVI To: Catherine A Barton/AE/DuPont cc: Subject: Receptor Grid Cathie, I im ported the grid into PowerPoint.

Malinowski EnPcalopseurrescopy Pascagoula Baseline Study/Report for First Chemical Corporation (October 2006; Project No. 18984786.06051/508800) (40 pages) + CD titled DuPont FYI Submission (10.16.06) ~ Pascagoula Baseline Study/Report sures dren

AR226-2178 Chris E Shoop 08/16/2001 03:27 PM To: cc: Subject: Debbie J Mulrooney/AE/DuPont@DuPont Building Heights, etc.

AR226-2249 /y Debbie J Mulrooney 01/29/2002 05:35 PM To: cc: Subject; Robert P Pinchot/DEV/AE/DuPont@DuPont Watershed Deposition Results D Rob, Here are the deposition totals for the three different watersheds that we discussed.

Chambers Clariant - C Dixon Daikin - E, Lampert DuPont - G.

AR226-2460 Roger J Zipfel 06/04/99 06:00 PM To: cc: Subject: Katsunosuke Kitaaawa/PO/DuPont@DuPont Re: C-8 In ground water ^ Kitagawa-san, we have ground water levels as high as 1500 ppb in some places.

AR226-2183 ,,G Debbie J M ulrooney |... 08/22/2001 02:51 PM < To: Catherine A Barton/AE/DuPont@DuPont cc: Subject: Fayetteville Report Cathie, Rob noted that we left a space for particle size information, but neglected to actually include the information.

AR226-2469 DuPont KBitingllili Waita P. 0.

Chambers Clariant - C Dixon Daikin - E, Lampert DuPont - G.