C O V /H H > THE DEVELOPMENT SERVICES COMPANY Sponsor: 3M St.

BACK TO MAIN 3M FLUOROCHEMICAL SUBMISSION TOXICOLOGY, EPIDEMIOLOGY AND MEDICAL SURVEILLANCE November 2004 Click on Study Title to View Report November 21, 2004 POSF Perfluorooctanesulfonyl fluoride "Bladder cancer in Perfluorooctanesulfonyl Fluoride Manufacturing Workers," Bruce H.

NORTHERN KENTUCKY OFFICE SUITE 340 1717 DIXIE HIGHWAY COVINGTON, KENTUCKY 41011-4704 606-331-2838 513-381-2838 FAX: 513-381*6613 DAYTON, OHIO OFFICE SUITE 600 110 NORTH MAIN STREET DAYTON, OHIO 45402-1786 937-228-2838 FAX: 937-228-2816 Ro b e r t a .

AJP002348 000 AR226-2089 MUOHOH 1 -K R , 8-H R AND ANNUAL HEA13 C-8 CONCENTRATIONS OVER THE FIVE YEAR S ?

AR226-2485 Walter R Tong 10/08/2001 10:38 AM To: Ta-W ei Fu/SE/DuPont@DuPont cc: Takuya.ichida@daikin.co.jp, Satoshi_komatsu@notes.che.daikin.co.jp, Charles J Noelke/AE/DuPont@DuPont, Steven H Swearingen/AE/DuPont@DuPont, Katsunosuke Kitagawa/PO/DuPont@DuPont, Nancy L Tanzola/AE/DuPont@DuPont, David R Wallace/AE/DuPont@DuPont, Shawn E Messinger/AE/DuPont@DuPont Subject: Re: PROPOSED APFO SPECIFICATIO NS How does this list compare with the FAX th at Daikin sent?

AR226-2561 September 4, 2001 Samantha P.

AR226-3226 FINAL REPORT IN VIVO RAT MICRONUCLEUS ASSAY COVANCE STUDY: 22900-0-4540ECD STUDY SCHEDULE: Study Initiation Date : 18-Oct-2001 Initial Dose Date: 23-Oct-2001 Study Termination Date: 19-Nov-2001 Final Report Date: 25-Jan-2002 STUDY DIRECTOR.

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Katherine E.

September 29,2006 Page 3 ATTACHMENT 2 Tables and excerpts from the draft protocols that contain raw data C-8 blood levels.

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.

c FETAL EXPOSURE TO PERFLUORINATED COMPOUNDS: DISTRIBUTION AND DETERMINANTS OF EXPOSURE AND RELATIONSHIPS WITH WEIGHT AND SIZE AT BIRTH. by Benjamin Joseph Apelberg, M.H.S.

P-1 Aetzb-nrf > 5 ^ 5 ACUTE TOXICITY TO THE OLIGOCHAETE WORM (Lumbriculus variegatus) TEST SUBSTANCE___________________________________________ Identity: Perfluorooctanesulfonate; may also be referred to as PFOS or FC-95. (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 test substance is a white powder.

At2Z< '3 % 13 Studies on the Toxicological and Environmental Properties of PFBA as of July 2008 I.

Taft/ T" Taft Stettiriius S Hollister LLP 4 25 W alnut Street, Suite 1 8 0 0 /Cincinnati, O H 4 5 2 0 2-3 9 57 / Tel: 5 1 3 . 3 8 1 . ; $ g i( ) j 4 > V ^ B 3 81.0205 /w w w .taftlaw.com Cincinnati / Cleveland / Colum bus / Dayton / Indianapolis'/ Npfth^rji Kentucky / Phoenix / Beijing 09JUH16 ftHIQ: 36 Robert A.