Construction Materials Engineering ami Testing g Environmental Engineering and Consulting Geotechnical Engineering m Analytical Sendees m T R A N S M IT T A L TO: Weston Solutions, Inc._________ __ DATE: March 23. 2005______ P.O.

-f\&A6 - 1063 Guide tolde SafeHandling of Fluoropolymer Dispersions r * -.: - :) c di ro ro ro Prepared by the FLUOROPOLYMER MANUFACTURERS GROUP O cto b e r 2001 BZ-101 The Society o f th e Plastics Industry, Inc.

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON.

mm ndrea V Malinowski Corporate Counsel DuPont Legal D-7078 1007 Market Street Wilmington, Delaware 19898 Phone: 302-774-6443 Fax: 302-774-4812 e-mail: Andrea.V.Malmowski@usa.dupont.com M l 2 6 - 132.7 _ 0603- 00315 Mr.

AR226-1744 STUDY TITLE Extraction of Potassium Perfluorooctanesulfonate from Red Blood Cells and Serum for Analysis Using HPLC-Electrospray/Mass Spectrometry DATA REQUIREMENTS Analytical Method Requirements STUDY DIRECTOR Sean Gallagher ANALYTICAL REPORT DATE June 2, 2003 PERFORMING LABORATORY / TESTING FACILITY Exygen Research 3058 Research Drive State College, PA 16801 Phone: 814-272-1039 STUDY SPONSOR 3M Environmental Technology and Safety Services Building 2-3E-09 PO Box 33331 St.

DuPont-13267 -*2^ 6- /6S3> Study Title Ammonium Perfluorooctanoate: Age Effect on the Plasma Concentration in Post-Weaning Rats Following Oral Gavage A u t h o r : Xing Han, Ph.D.

T herIm m u n e Research Corporation Sponsor: 3M Corporate Toxicology Building 220-2E-02, 3M Center St.

A f c S - &6\7 Dr.

AR2 2 t>- SRPTT-6295.8, T-6316.4, T-6868.2, T-707U, T-7132.1 DT15-B 3M MEDICAL DEPARTMENT, CORPORATE TOXICOLOGY Title: Comparative Molecular Biology of PerfluorooctanesoIfonate (PEGS, 1-6295), N-ethyl peril tiorooctanesuIfonamido ethanol (N-EtFOSE, T-6316), N-Ethy!

il RESEARCH Precise Research.

AR226-3173 TRADESECRET Study Title H-24616: Bacterial Reverse M utation Test Authors Valentine O.

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FirstChemical Corporation A DuPont Company PASCAGOULA BASELINE STUDY/REPORT FOR FIRST CHEMICAL CORPORATION PASCAGOULA, MISSISSIPPI Date: October 2006 Project No.: 18984786.06051 508800 Pascagoula Baseline Study/Report Table of Contents TABLE OF CONTENTS Executive Summary............................................................................................................1 1.0 Introduction.................................................................................................................1 1.1 Background on PFOA and PFOS......................................................................1 1.2 Report Content.................................................................................................. 2 2.0 Pascagoula Region Water and Solids Sampling........................................................ 3 2.1 Introduction and Background........................................................................... 3 2.2 Water and Solids Field Sampling..................................................................... 3 2.2.1 Surface Water and Wastewater Sampling........................................... 3 2.2.2 Potable and Industrial Water Sampling............................................... 5 2.2.3 Groundwater Sampling........................................................................ 5 2.2.4 Pascagoula POTW Sludge Sampling.................................................. 6 2.3 Laboratory Analysis and Data Review - Water and Solid Samples.................6 2.4 Discussion of Analytical Results...................................................................... 8 2.4.1 Surface Water...................................................................................... 8 2.4.2 Groundwater........................................................................................ 9 2.4.3 Pascagoula POTW Sludge..................................................................10 2.5 General Occurrence of PFOA in the Water and Solids...................................10 2.5.1 Discussion of PFOA Concentrations in Fresh Water.........................10 2.5.2 Discussion of PFOA Concentrations in Salt Water............................11 2.5.3 Discussion of PFOA in Waste Water Treatment Facilities................11 2.6 Summary of Water and Solids Field Sampling...............................................11 3.0 Pascagoula Region Fish and Invertebrate Sampling.................................................13 3.1 Introduction and Background..........................................................................13 3.2 Fish and Invertebrate Field Sampling..............................................................13 3.2.1 Selected Fish Sampling......................................................................13 3.2.2 Selected Invertebrate Sampling..........................................................14 3.3 Laboratory Analysis and Data Review - Fish and Invertebrate Samples.......14 3.4 Discussion of Analytical Results for Fish and Invertebrates..........................15 3.4.1 Fish.....................................................................................................15 3.4.2 Invertebrates.......................................................................................16 3.5 General Occurrence of PFOA in Fish and Invertebrates.................................16 3.5.1 Discussion of PFOA Concentrations in Saltwater Fish......................16 3.5.2 Discussion of PFOA Concentrations in Marine Invertebrates...........17 3.5.3 Bioaccumulation Discussion..............................................................17 3.6 Summary of Invertebrates and Fish Field Sampling.......................................18 4.0 References.................................................................................................................19 S:\Groups\URS\WP\Pascagoula\508800 Baseline Study\Report\FCC BaselineStudyRpt.doc October 2006 i Pascagoula Baseline Study/Report Table of Contents Table 1a Table 1b Table 2 Table 3a Table 3b Table 4 Table 5 TABLES PFOA Summary Water Samples PFOS Summary Water Samples PFOA and PFOS Summary of Solids Sample PFOA Summary Biological Samples PFOS Summary Biological Samples Summary of Background Information on PFOA from the Literature Cited in This Report Biological Sample Sizes Figure 1 Figure 2 FIG URES Baseline Study Sampling Locations Groundwater and Storm Water Sample Locations Appendix A Analytical Data APPEN DICES S:\Groups\URS\WP\Pascagoula\508800 Baseline Study\Report\FCC BaselineStudyRpt.doc October 2006 ii Pascagoula Baseline Study/Report Acronyms ACRONYMS Acronym APFO BCF BAF COC DuPont FCC LC/MS/MS LOD LOQ MDEQ MDL MDMR MS ND NQ Pg/Kg Pg/L ng/g NERR PBS PFOA PFOS POTW Ppb PQL QAPP QC RPD SNUR SOP STL SWPPP WWTP Definition / Description Ammonium perfluorooctanoate Bioconcentration Factor Bioaccumulation Factor Chain of Custody E.

l3^l-ll07-39f 3>o( November 20, 2007 DuPont Haskell Global Centers for Health and Environmental Sciences Elkton Road, P.O.

TSCA SANITIZED A22&3B3/ M B Research Laboratories , VOLUME I P.