AR226-2350 Ohio EPA December 2,2003 Objectives Provide grounding/update on recent activities Solicit input on upcoming activities Agenda Water - GIST Final Report Recommendations - Proposed MOU Based on GIST Recommendations - OEPA Requests - DuPont Suggested Modifications Air - Review Recent Model Results - Air Permit Update - Additional Reduction Programs - Air Model Verification Plan Proposed Memorandum of Understanding-West Virgini DEP and Ohio EPA Summary of Activities December 2, 2003 GIST Report Recommendations Summary Final GIST report issued August, 2003 Continued quarterly/annual monitoring of certain Ohio River public water systems Quarterly/annual monitoring of private water supplies (10 locations West Virginia and Ohio - West Virginia: Wash Works 0-2 mile radius and Dry Run Landfill/Letart Landfill 1-mile radius - Ohio: Wash Works 0-2 mile radius - List to include wells, springs, cisterns Conduct C8 monitoring at all DuPont Washington Works facilities according to applicable West Virginia Solid Waste/NPDES, NPDES and EPA HSWA (Corrective Action) permit requirements Proposed MOU -Administrative Details Parties: - West Virginia Department of Environmental Protection - West Virginia Department of Health and Human Resources - Ohio Environmental Protection Agency - E.I. du Pont de Nemours & Company Objectives: - Continued monitoring and reporting ofC8 concentrations in groundwater and surface water - Implement recommendations of me GIST concerning continu sampling and monitoring in WV & Ohio ("in and around the facilities") - Begin first quarter 2004 Proposed MOU -Public Water System Sampling WV Public Water Systems: - Quarterly sampling 1Q2004-4Q2005 atLubeckPS DuPont WW, and GE production wells and finished water (if applicable) - Annual sampling 2004-2005 at Blennerhassett Islan State Park, Mason Cty.

AR226-2460 Roger J Zipfel 06/04/99 06:00 PM To: cc: Subject: Katsunosuke Kitaaawa/PO/DuPont@DuPont Re: C-8 In ground water ^ Kitagawa-san, we have ground water levels as high as 1500 ppb in some places.

i > C-8 Sum p Analysis Sheet Date Time Liquid Sample pH , NTU Solids Sample ^|a&l^ -. - ss^g------ \2-:t>l ^^ 7':^ 2.:^ ^^Q, ^A ^:L <-n .- ^-.

AR226-2517 Mark E Reeder 05/21/2002 09:20 AM To: Michael G McClusky/AE/DuPont@DuPont cc: Ta-Wei Fu/SE/DuPorrt@DuPont Subject: Water Samples The C-8 results on the float tank samples you submitted are listed below.

AR226-2554 Robert F To: cc: Subject: PInohot 04/24/2000QgjJPM. _ __,,.______,,._-_ Gary w Kennedy/AE/DuPontQDuPont, Susan S Miletl/DuPont@DuPort, Michael E McCord/AE/DuPontQDuPont, Robert C Buek/DuPontQDuPont, Oiane R Shomper/Ae/DuPont@DuPont.

AR226-2586 S-II^G^ ^A l!

AR226-2707 29 AR226-2707 American Society of Mass Spectrometry (ASMS) Summary of DuPont Presentations ASMS Annual Meeting, 2004 Quantitative Determination of Extractable PFOA in Textiles and Carpets by LC/MS/MS Michael P.

Material Tested; Material Submitted by Copies co: E.

FOR DU PONT USE ONLY AR226-2909 W.

i 7AR226-1307-3 AE {DEi INEE a vo 170s LCeTe ve ANTS i) "AL ne Tbehg _-- al (aes atti ah \i RA id be 3 dr XE ee iy :J. : . 0) 9/70) 3 a ' Elg || po iFS | | 1!

AR226-1307-5 @ Summary - APFO reproductive effects, 8/23/2002 CSCrooaetsotBoyutansyS SezMFeaoRrnmGm1a0/tG0ao7n/m2T0oo02urs8io1o0Pg1ry2od7Tue8cstisng Kaos ras NanSSeupon A680Repro etocssammy A fl = ym sa stom atoms criasarn 000050 21P0r6o1s3060708830 DuPont Sum-Amuguast2r3,2y002 Oral (Gavage) Two`-AGmemnoernaituimonPe(rOfnlueoLcoiotcttaPneoartGee(nAerPaFtOi)onl)aRReaptrsoduction Study of 3MstudyconductedatArgus (ArgusStudy #T-6889.6) tThheesmuudlyigiesnreerpaotritoendrbeeplroowdu,citnioanddsittiuodnywtistohmAePFcoOmhmeanstbseoenrpoeevaiteiwaeldaennddoDcuriPnoenetf'fsepcotssiotfon on ASoPtFeOdb.eTlnogwe.neArfaelr,wreevaigerweienwgtithhetrhepeocrotn,cHlausskieolnlscsoantteadcitendtthheestArugduysrepSoturdtwyDiitrhetchteor2oenxcMepatyi3on1s, 2002todiscussourdifferences adatainterpretation.

: PROGRAM 000027

FINAL REPORT PROTOCOL 418-013 ORAL (GAVAGE) PHARMACOKINETIC STUDY OF PFOS IN RATS SPONSOR'S STUDY NUMBER: T-6295.12 FINAL REPORT DATE: 24 JUNE 1999 PROTOCOL 418-013 ORAL (GAVAGE) PHARMACOKINETIC STUDY OF PFOS IN RATS SPONSOR'S STUDY NUMBER: T-6295.12 TABLE OF CONTENTS SUBJECT 1.

CorporateHealth Physics Corporate OccupationalMedicine Corporate ProductResponsibility Corporate Toxicology 3M MedicalDepartment 3M Center,220-2E-02 PO Box 33220 St Paul,MN 55133-3220 651733 1110 An Epidemiologic Investigationof ClinicalChemistries,Hematology and Hormones in Relation to Serum Levels of PerfluorooctaneSulfonateinMale Fluorochemical Production Employees Following reportsof the findingof organicfluorineinserasamples,a fluorochemical medical surveillancperogram began at3Ms Decatur manufacturingfacilitiynthe late 1970's.The surveillancperogram has generallyconsistedofannual or biannualtestsof clinicaclhemistriesp,ulmonary function,blood countsand a biomonitorof fluorochemicalexposure.

CorporatHeealthPhysics 3M Center2,20-2E-02 CorporatOeccupationMaeldicine PO Box 33220 CorporatPeroductResponsibility St.PaulM,N 55133-3220 CorporatTeoxicology 6517331110 3M MedicalDepartment DeterminatioofnSerumFluorochemicLaelvelisnSumitomo3M Employees Ninety-fouSrumitomo3M employeesparticipaitneadvoluntarcyr,oss-sectiosnearlum fluorochemicalassessment.Three groups of employees were examined.