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il RESEARCH Precise Research.

AR226-2560 August 31, 2001 Mr.

AR226-2581 GIST MEETING March 5,2002 Dave Watkins, chairperson, called the meeting to order at 9;15 am on March 5,2002.

AR226-2813 Study Title Ammonium Perfluorooctanoate: Age Effect on the Plasma Concentration in Post-Weaning Rats Following Oral Gavage Author: Xing Han, Ph.D.

Company Sanitized.

3RMeguCloartoproyraSteervTiocxeiscology and 3M Center, Building 0220-06-E-03 St.

36a 2 ADDENDUM NUMBER 1 TO THE SECOND SEMIANNUAL PROGRESS REPORT FLUOROCHEMICAL (FC) SITE RELATED ENVIRONMENTAL ASSESSMENT PROGRAM 3M COTTAGE GROVE, MN FACILITY March 2006 Prepared for 3M Company fiy WESTON SOLUTIONS, INC.

Katherine E.

Self-Reported Medical Conditions in Perfluorooctanesulfonyl Fluoride Manufacturing Workers Final Report Bruce H.

3Afl A&2S16- $S7Z 3M ENVIRONMENTAL LABORATORY PROJECT NO.E05-0442 Analytical Report Definitive Study: Quantitative Screening of Commercial Lots of Human Serum Obtained in 2004 for Endogenous Fluorochemicals Using Solid Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry Laboratory Request Num ber EQ5-0442 Testing Laboratory 3M Environmental Health and Safety Operations 3M Environmental Laboratory' _________________ _ _ _____________________________________________ ;_________ _ 3M Environmental Laboratory Project Lead Mark E.

ATSttCn:A SDeocctuiomne8n(et)P/FroYcIessing Center Attachment 1 P-1 P-1 July 28,2006 Page 4 of 5 M Z26 _373J- Acronym codefor Tables 1 and 2 In Tables 1 and 2, the following acronyms are used: acronym meaning CW FW WW DuPont Chambers Works facility in Deepwater, New Jersey DuPont Fayetteville Works facility in Fayetteville, North Carolina DuPont Washington Works facility in Parkersburg, West Virginia PPPFFFHPBeAxAA PFHpA PPPPFFFFOUDNnAAAA PFDoA PFBS PPPFFFOHOSxSSA PPeerrfflluuoorroobpuentatannooicicaacicdid Perfluorohexanoic acid Perfluoroheptanoic acid Perfluorooctanoic acid Perfluorononanoic acid Perfluorodecanoic acid Perfluorotmdecanoic acid PPPeeerrrfffllluuuooorrrooobhdueoxtdaaennceaenssuoulilfcfooanncaaitdtee Perfluorooctane sulfonate Perfluorooctane sulfonamide Attachment 1 Spaed Matrix Lab Blank 1 cw # P % cw p 3 cw n m 34 CW (DUPLICATE) c w v 5 cw i cw < P * CW 7 cw qp ( CW WG18817-102 Y2 WG18817-101 Y1 L8789-1 Y1 LB789-2 Y1 L87B9-3 Y1 WG18817-103Y1 L8789-4 Y1 L8789-5 Y1 LB789-5 Y1 LB789-6 Y1 L8789-7 Y1 L8789-8 Y1 % Recovery ng/mL ng/mL ng/mL ng/mL ng/mL ng/mL ng/mL ng/mL ng/mL ng/mL ng/mL WQ18817 W Q 18817 WQ18817 WQ18817 WG18817 WG18817 WG18817 WG18817 WG18817 WG18817 WG18817 WG18817 PFBA 81.2 ND ND ND ND ND ND <1.44 <1.44 <1.44 NO ND PFPeA 79.0 ND ND ND ND ND ND ND NO ND ND ND PFHxA 85.8 ND 1.82 ND <0.900 <0.900 ND ND ND <0.900 ND <0.900 PFHpA 83.5 ND ND ND ND ND <1.41 3.71 3.71 11.7 6.91 ND PFO A 110 ND 7.71 9.72 24.1 21.6 42.8 13.4 13.4 111 56.7 26.6 PFNA 11B ND 4.28 2.90 7.10 6.78 18.3 4.22 4.22 53.1 29.2 2.37 PFDA 115 ND <1.06 <1.08 1.64 1.51 8.47 1.82 1.82 13.5 7.47 <1.08 PFUnA 128 ND <1.02 <1.02 2.37 2.60 1.70 <1.02 <1.02 3.99 1.55 ND PFDoA 60.9 ND ND ND <0.600 <0 600 0.943 <0.600 <0.600 1.10 0.737 ND PFBS 94.8 ND ND ND ND ND ND ND ND ND ND ND PFHxS 104 ND <3.72 <3.72 39.1 33.5 <3.72 <3.72 <3.72 4.28 <3.72 3.81 PFOS 112 ND 51.1 35.3 68.2 58.0 25.7 35.0 36.0 39.0 53.8 36.8 PFO SA 73.5 ND ND ND ND ND ND ND ND NO ND ND Attachment 1 PFBA PFPeA PFHxA PFHpA PFOA PFNA PFDA PFUnA PFDoA PFBS PFHxS PFOS PFOSA tp // CW ^ k F w t f f lV L8789-9 Y1 LS789-10Y1 L8789-11 Y1 ngftnL ngAnL WG1B817 WG18817 ngAmL WG18817 ND ND NO ND ND ND ND ND ND NO 1.48 ND 12.9 13.0 28.3 <1.53 3.97 2.28 ND <1.08 <1.08 ND <1.02 <1.02 ND ND ND ND ND ND <3.72 <3.72 6.64 30.7 46.9 37.2 ND ND ND t-2.

Andrea V.

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.

3Afl A&2S16- $S7Z 3M ENVIRONMENTAL LABORATORY PROJECT NO.E05-0442 Analytical Report Definitive Study: Quantitative Screening of Commercial Lots of Human Serum Obtained in 2004 for Endogenous Fluorochemicals Using Solid Phase Extraction and Liquid Chromatography/Tandem Mass Spectrometry Laboratory Request Num ber EQ5-0442 Testing Laboratory 3M Environmental Health and Safety Operations 3M Environmental Laboratory' _________________ _ _ _____________________________________________ ;_________ _ 3M Environmental Laboratory Project Lead Mark E.