AR226-3064 DuPont HIiR 904-96 ttxaggT.T.

AR226-3112 S ABIO TIC DEG RADATIO N: H YDRO LYSIS A S A FUN C TIO N O F pH (PR ELIM INA RY TEST) Sponsor DuPont Specialty Chemicals Jackson Laboratory Chambers Works Deepwater NJ 08023 USA Research Laboratory Huntingdon Life Sciences Ltd Eye Suffolk IP23 7PX ENGLAND Draft: 23 December 1998 Final: 2 February 1999 aswpssif SanHteed.

AR226-3126 DuPont-3220 TRADE SECRET Study Title H-24119: Bacterial Reverse Mutation Test in Salmonella typhimurium and Escherichia coli Laboratory Project ID: DuPont-3220 Test Guidelines: U.S.

39 tgi X 000378 Page 2 Revised 5/14/81 Il A.9.9.6 - C-8 Level - Current Washington Works Female Employees Number of Samples 56 Range .0.013 -.5.1 Average 0 . 92 ppm 0 100 Number Above 0.05 ppm C-8 53 II If 0.10 1 It 46 It It 0.20 it II 35 tl If 0.30 tl IV 29 11 f t 0.40 II 1 28 RDXldr 000379

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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.

3M General Offices 3M Center St.

Betty Boros-Russo - FW: L2604996 - City of Salem PFOA/PFOS (4th round of Sampling) From: To: Date: Subject: "Fred Mucci" <fmucci.salem@verizon.net> "'Betty Boros-Russo'" <Betty.Boros-Russo@dep.state.nj.us> 5/13/2008 10:20:59 AM FW: L2604996 - City of Salem PFOA/PFOS (4th round of Sampling) Good Morning Ms.

Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800 / Cincinnati, OH 45202-3957 / Tel: 513.381.2838 / Fax: 513.381.0205 / www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing Robert A.

F il2 ' U o < y ^ ^ > S Tap.1 ft/ Taft Stettinius & Hollister LLP 425 Walnut Street, Suite 1800/ Cincinnati, OH 45202-3957 / Tel: 513.381.2838/ Fax: 513.381.0205 / www.taftlaw.com Cincinnati / Cleveland / Columbus / Dayton / Indianapolis / Northern Kentucky / Phoenix / Beijing 5R1o3b-3e5r7t-a9.6B38ilott bi1ott@ taftlaw .com August 4, 2010 EEUPP.SAA.

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AU9M.70*t ACUTE TOXICITY TO AQUATIC INVERTABRATES (DAPHNIA MAGNA) TEST SUBSTANCE_______________________________________________ Identity: Mixture containing periluorooctanesulfonate which may also be referred to as PFOS, FC-95, or as a component of FC-201F. (1-Octanesulfonic acid, 1,1,2,2,3,3,4,4,5,5,6,6,7,7,8,8,8heptadecafluoro-, potassium salt, CAS # 2795-39-3) Remarks: The 3M production lot number was 1.

A ft #.9.6 _ > 73/ ACUTE TOXICITY TO AQUATIC INVERTEBRATES (ACARTIA TONSA) TEST SUBSTANCE____________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-203. (1Octanesulfonic acid) (CAS # 2795-39-3).

M .6a a - 0216 ACUTE TO XICITY TO AQUATIC INVERTEBRATES (DAPHNIA MAGNA) TEST SUBSTANCE_________________________________________ Identity: A mixture containing perfluorooctanesulfonate, which may also be referred to as PFOS, FC-95, or as a component of FC-206CE. (1Octanesulfonic acid) (CAS # 2795-39-3).

The Boeing CompanyR AX& - 06 9-3 Washington, DC FACSIMILE LEAD SHEET Please Check One: ___ Destroy Copy X Sender Will PickUp Date: October 10. 2000 No. of Pages LEAD +_4 Time Sent __ __________ To Charles M A uer___________ _________ Company US Environmental Protection Agency Bldg. ___________ Dept. ___________ City________________ State ___ _________________ Phone No.____________________________ _______ ___ Fax Phone No. (202) 260-8168____________ Check Phone No. __________________________ Special Instructions: From: Matthew C.