AR226-2344 ATTACHMENT 2 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPont Washington Works Facility Parkersbwg, West Virginia Prepared for: West Virginia Department of Environmental Protection Division of Air Quality 7012 MacCorkle Ave, SE Charleston, WV 25304-2943 Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wihnington, DE 19898 October 17,2003 ASH027184 1.

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AR226-2614 AR226-2614 DUPONT TELOMER MANUFACTURING SITES: ENVIRONMENTAL ASSESSMENT OF PFOA LEVELS IN AIR AND WATER Date: September 2003 Project No.: 508501 18983843.00003 CORPORATE REMEDIATION GROUP An Alliance between DuPont and URS Diamond Barley Mill Plaza, Building 27 Wilmington, Delaware 19805 DuPont Telomer Manufacturing Sites: Environmental Assessment of PFOA Levels In Air and Water Table of Contents TABLE OF CONTENTS Executive Summary....................................................................................................... iv 1.0 1 Introduction............................................................................................................ 1.1 Chambers Works........................................................................................... 1 1.2 Washington Works........................................................................................ 2 2.0 Data Analysis and Analytical Reporting................................................................. 3 3.0 Air Dispersion Modeling........................................................................................ 4 3.1 Chambers Works - ISC3 Modeling Methodology and Results....................... 4 3.1.1 Emission Source Information............................................................ 4 3.1.2 Modeling Methodology.................................................................... 4 3.1.3 Modeling Results.............................................................................. 4 3.2 Washington Works - Screen3 Modeling Methodology and Results................ 6 3.2.1 Data and Modeling Procedures......................................................... 6 3.2.2 Modeling Results.............................................................................. 8 4.0 Chambers Works Groundwater Sampling............................................................... 9 4.1 9 Background................................................................................................... 4.2 Regional Geology.......................................................................................... 9 4.3 Site Geology.................................................................................................. 9 4.4 Site Hydrogeology....................................................................................... 10 4.5 Sample Location Selection........................................................................... 11 4.6 Sampling Activities and Results................................................................... 11 4.7 Summary of Results..................................................................................... 12 5.0 Chambers Works Surface Water Sampling........................................................... 14 5.1 Site Effluent Sample Results........................................................................ 14 5.2 Chambers Works and Upstream Surface Water Intake Results..................... 14 5.3 Delaware River Surface Water Sampling..................................................... 15 5.3.1 Delaware River-Discussion of Results.......................................... 16 5.4 Salem Canal................................................................................................. 17 5.5 Summary of Results..................................................................................... 17 6.0 18 Conclusions.......................................................................................................... 7.0 19 References............................................................................................................

AR226-2672 \ 1 PO AR226-2672 PROJECT ANNUAL C8 SAMPLING 1997 ANNUAL C8 SAMPLING 1997 ANNUAL C8 SAMPLING 1997 ANNUAL C8 SAMPLING 1998 ANNUAL C8 SAMPLING 1998 ANNUAL C8 SAMPLING 1998 ANNUAL C8 SAMPLING 1998 ANNUAL C8 SAMPLING 1999 ANNUAL C8 SAMPLING 1999 ANNUAL C8 SAMPLING 2000 ANNUAL C8 SAMPLING 2000 ANNUAL C8 SAMPLING 2000 ANNUAL C8 SAMPLING 2000 ANNUAL C8 SAMPLING 2000 ANNUAL C8 SAMPLING-1996 ANNUAL C8 SAMPLING-1996 ANNUAL C8 SAMPLING-1996 ANNUAL C8 SAMPLING-1996 ANNUAL C8 SAMPLING-1996 ANNUAL C8 SAMPLING-1996 ANNUAL C8 SAMPLING-1996 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/02 C8 SAMPLING 1/03 C8 SAMPLING 1/03 SRCNAME AM07-PW01 A008-PW01 WEST WELLFIELD 1 AM07-PW01 A008-PW01 U16-MW01 WEST WELLFIELD 1 U16-MW01 WESTWELLFIELD1 AM07-PW01 A008-PW01 BUILDING-363_AFTER_FILTE U16-MW01 WESTWELLFIELD1 AM07-PW01 A008-PW01 MW-AJP MW-MGM MW-TWW MWBG WEST WELLPIELD 1 AE11-MW01 D08-MW01 E13-MW01 EQBLK-1 EQBLK-2 FBLK-2 FIELD BLANKS GALLERY N04-MW02 OUTFALL 001 OUTFALL 002 OUTFALL 002 OUTFALL 003 OUTFALL 005 OUTFALL 007 OUTFALL 105 P04-MW02 Q04-MW02 R04-MW02 RANNEY WELL 331 WELL 336 WEST WELLFIELD 1 WEST WELLFIELD 4 Y14-MW01 EQBLK-1 OUTFALL 001 C8 results Envista 111104-xls THEME Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Blank Water Blank Water Blank Water Blank Water Groundwater Groundwater Other liquid Other liquid Other liquid Other liquid Other liquid Other liquid Other liquid Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Blank Water Other liquid WWK DATESMPL 6/2/1997 6/2/1997 5/29/1997 6/19/1998 6/19/1998 6/19/1998 6/2/1998 5/20/1999 6/3/1999 8/16/2000 8/15/2000 8/16/2000 5/11/2000 9/14/2000 4/2/1996 4/2/1996 4/18/1996 4/18/1996 4/18/1996 4/2/1996 4/11/1996 1/28/2002 1/28/2002 1/28/2002 1/17/2002 1/28/2002 1/22/2002 1/15/2002 1/15/2002 1/28/2002 1/17/2002 1/17/2002 1/17/2002 1/17/2002 1/17/2002 1/17/2002 1/17/2002 1/28/2002 1/28/2002 1/28/2002 1/15/2002 1/22/2002 1/22/2002 1/15/2002 1/22/2002 1/28/2002 1/26/2003 1/26/2003 SMPLT FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS FS EB EB FB FB FS FS FS DUP FS FS FS FS FS FS FS FS FS FS FS FS FS PS EB FS SAMPLE_NUMBER WWK-WELL 336 WWK-WELL 331 WWK-WEST WELLFIELD#1 WELL-336 WELL-331 TW-25 WESTWELLFIELD#1 WWK-Z-LL-TW#25 WWK-WEST_WELLFIELD WWK-G-WELL-336 WWK-G-WELL-331 WWK-G-BUILDING-363_AFTER_FILTE LCL-G-TW-25 LCL-Z-WEST_WELLFIELD_#1 MW-336 MW-331 MW-AJP MW-MGM MW-TWW MWBG WEST_WELL WWK-G-AE11-MW01 WWK-D08-MW01 WWK-G-E13-MW01 WWK-K-EQBLK-1 WWK-K-EQBLK-2 WWK-K-FBLK-2 WWK-FBLK-1 WWK-G-GALLERY WWK-G-N04-MW02 WWK-Z-OUTFALL-001 WWK-Z-OUTFALL-002-2 WWK-Z-OUTFALL-002 WWK-Z-OUTFALL-003 WWK-Z-OUTFALL-005 WWK-Z-OUTFALL-007 WWK-Z-OUTFALL-105 WWK-G-P04-MW02 WWK-G-Q04-MW02 WWK-G-R04-MW02 WWK-G-RANNEY WWK-G-WELL 331 WWK-G-WELL 336 WWK-WEST WELLFIELD 1 WWK-G-WEST WELLFIELD 4 WWK-G-Y14-MW-1 WWK-K-EQBLK-1 WWK-Z-OUTFALL-001 Page 1 Hit LAB_ANALYTE 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 IN WATER 1 FC-143 IN WATER 1 FC-143 IN WATER 1 FC-143 IN WATER 1 FC-143 IN WATER 1 FC-143 IN WATER 1 FC-143 IN WATER 1 FC-143 1 FC-143 0 FC-143 1 FC-143 1 FC-143 0 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 0 FC-143 0 FC-143 0 FC-143 0 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 0 FC-143 1 FC-143 C8 results Envista 111104.xls WWK QUAL.EPA QUAL INHOUSE REVIEW METHODNO UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF UDF 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 PREPMTHD None None None None None None None UDF UDF UDF UDF UDF UDF UDF None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None None PREPREP NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS DRY 2 2 2 2 2 2 2 1 1 1 1 1 1 1 2 2 2 2 2 2 2 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 LAB_NUMBER MD791-008 MD791-009 MD791-007 MG144-002 MG144-001 MG145-001 MG023-005 3157424-1 3165946-1 3440160-1 3440159-1 3440161-1 3379846-1 3458430-1 MA644-009 MA644-008 MA784-001 MA784-003 MA784-002 MA644-010 MA722-005 L32638-5 L32638-7 L32638-6 L32581-8 L32638-9 L32606-4 L32561-4 L32561-1 L32638-4 L32581-1 L32581-7 L32581-2 L32581-3 L32581-4 L32581-5 L32581-6 L32638-3 L32638-1 L32638-2 L32561-2 L32606-1 L32606-2 L32561-3 L32606-3 L32638-8 L34142-8 L34142-1 Page 2 PROJECT C8 SAMPLING 1/03 C8 SAMPLING 1/03 C8 SAMPLING 1/03 C8 SAMPLING 1/03 C8 SAMPLING 1/03 C8 SAMPLING 1/03 C8 SAMPLING 1/04 WWK C8 SAMPLING 1/04 WWK C8 SAMPLING 1/04 WWK C8 SAMPLING 1/04 WWK C8 SAMPLING 1/04 WWK C8 SAMPLING 1/04 WWK C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/02 C8 SAMPLING 10/03-WWK C8 SAMPLING 10/03-WWK C8 SAMPLING 10/03-WWK C8 SAMPLING 10/03-WWK C8 SAMPLING 10/03-WWK SRCNAME OUTFALL 002 OUTFALL 003 OUTFALL 003 OUTFALL 005 OUTFALL 007 OUTFALL 105 EQBLK-1 OUTFALL-001 OUTFALL-002 OUTFALL-002 OUTFALL-005 OUTFALL-105 AE11-MW01 AJ06-MW02 AX13-PW01 D08-MW01 E13-MW01 EQBLK-1 EQBLK-2 EQBLK-3 FBLK-1 FBLK-2 GALLERY N04-MW03 OUTFALL 001 OUTFALL 002 OUTFALL 003 OUTFALL 005 OUTFALL 007 OUTFALL 007 OUTFALL 105 P04-MW02 P04-MW02 P08-MW01 Q04-MW02 R04-MW02 RANNEY WELL 331 WELL 336 WEST WELLFIELD 1 WEST WELLFIELD 4 Y14-MW01 Y14-MW02 EQBLK-1 OUTFALL-001 OUTFALL-002 OUTFALL-005 OUTFALL-005 C8 results Envista 111104-xls THEME Other liquid Other liquid Other liquid Other liquid Other liquid Other liquid Blank Water Other liquid Other liquid Other liquid Other liquid Other liquid Groundwater Groundwater Groundwater Groundwater Groundwater Blank Water Blank Water Blank Water Blank Water Blank Water Groundwater Groundwater Other liquid Other liquid Other liquid Other liquid Other liquid Other liquid Other liquid Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Groundwater Blank Water Other liquid Other liquid Other liquid Other liquid WWK DATESMPL 1/26/2003 1/26/2003 1/26/2003 1/26/2003 1/26/2003 1/26/2003 1/21/2004 1/21/2004 1/21/2004 1/21/2004 1/21/2004 1/21/2004 10/16/2002 10/16/2002 10/22/2002 10/16/2002 10/16/2002 10/18/2002 10/16/2002 10/16/2002 10/25/2002 10/22/2002 10/25/2002 10/16/2002 10/18/2002 10/18/2002 10/18/2002 10/18/2002 10/18/2002 10/18/2002 10/18/2002 10/16/2002 10/16/2002 10/16/2002 10/16/2002 10/16/2002 10/25/2002 10/22/2002 10/22/2002 10/25/2002 10/22/2002 10/16/2002 10/16/2002 10/16/2003 10/16/2003 10/16/2003 10/16/2003 10/16/2003 SMPLT FS DUP FS FS FS FS EB FS DUP FS FS FS FS FS FS FS FS EB EB EB FB FB FS FS FS FS FS FS DUP FS FS DUP FS FS FS FS FS FS FS FS FS FS FS EB FS FS DUP FS SAMPLEJMUMBER WWK-Z-OUTFALL-002 WWK-Z-OUTFALL-003-2 WWK-Z-OUTFALL-003 WWK-Z-OUTFALL-005 WWK-Z-OUTFALL-007 WWK-Z-OUTFALL-105 WWK-K-EQBLK-1 WWK-Z-OUTFALL-001 WWK-Z-OUTFALL-002-DUP WWK-Z-OUTFALL-002 WWK-Z-OUTFALL-005 WWK-Z-OUTFALL-105 WWK-G-AE11-MW01 WWK-G-AJ06-MW02 WWK-G-AX13-PW01 WWK-G-D08-MW01 WWK-G-E13-MW01 WWK-K-EQBLK-1 WWK-K-EQBLK-2 WWK-K-EQBLK-3 WWK-K-FBLK-1 WWK-K-FBLK-2 WWK-G-GALLERY WWK-G-N04-MW03 WWK-Z-OUTFALL-001 WWK-Z-OUTFALL-002 WWK-Z-OUTFALL-003 WWK-Z-OUTFALL-005 WWK-Z-OUTFALL-007-2 WWK-Z-OUTFALL-007 WWK-Z-OUTFALL-105 WWK-G-P04-MW02-2 WWK-G-P04-MW02 WWK-G-P08-MW01 WWK-G-Q04-MW02 WWK-G-R04-MW02 WWK-G-RANNEY WWK-G-WELL 331 WWK-G-WELL 336 WWK-G-WEST WELLFIELD 1 WWK-G-WEST WELLFIELD 4 WWK-G-Y14-MW01 WWK-G-Y14-MW02 WWK-K-EQBLK-1 WWK-Z-OUTFALL-001 WWK-Z-OUTFALL-002 WWK-Z-OUTFALL-005-DUP WWK-Z-OUTPALL-005 Page 3 Hit LAB_ANALYTE 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 0 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 0 FC-143 0 FC-143 0 FC-143 0 FC-143 0 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 0 FC-143 0 FC-143 1 FC-143 1 FC-143 1 FC-143 1 FC-143 C8 results Envista 111104.xls WWK QUAL EPA QUAL INHOUSE REVIEW METHODNO 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M-008-046 01M

RECYCLED &'^-| AR226-2703 (S3 01 AR226-2703 TORONTO WORKSHOP MATERIALS September 13-14,2004 Fluorotelomers What are they?

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AR226-2997 STUDY TITLE: CHROMOSOME ABERRATION ASSAY IN CHINESE HAMSTER V79 CELLS IN VITRO REPORT DATA REQUIREMENTS: OECD Guideline 473 EEC Directive 92/69 EPA 40 CFR Ch. 1 (7-1-86 ed. 798.5385) AUTHOR: Dr.

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