AN INVESTIGATION OF THE EFFECTS OF FLUOROCARBONS FATTY ACID-BINDING PROTEIN.

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Cpe | | | | | | | 4 | |. | | | | ARYA O09 SUMMARY OF HISTOPATHOLOGICAL EXAMINATIONS OF FATHEAD MINVOW (Pinephales promelas) EXPOSED TO 78.02 FOR 30 DAYS.

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AR226-2031 ZIPFEL 11/05/97 11:39 AM To: CC: Subject: BROWNAL.

AR226-2036 PECKSR 07/28/98 11:53 AM To: cc: Subject: SZAKATBK, MILLERSR, HALBERRM PLAYTIS , MILLERW , PARSONMA, MAYLESM , ZIPFEL pathforward and problems with detemiination of C8 In air Based on high reported C8 results for -the air samples collected on and due to erratic 6C results, I recommend resareples be taken from these locations.

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