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/(R -- 0 6 5 If* 0B8a/r1b7a/r2a0L0e0c0z6y:n4s5kiPM cTScou::bject: Karen Lannon/DC/USEPA/US@EPA request for information on perfluorochemicals ------------------------Forwarded by Barbara Leczynski/DC/USEPA/US on 08/17/2000 06:34 PM ^ 0C4h/a1r9le/2s0A0u0e0r8:42 AM Tcco:: OgLesercacalzdry.Hnl.ksekernin/DanneCdd/eUyz@S/DEuCPsaA/U.

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 900 110 NORTH MAIN STREET DAYTON, OHIO 45402-1786 937-228-2838 FAX: 937-228-2816 R o b e r t a .

AR226-1976 Z - i B&?.

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AR226-2106 Test R esults Sam ple Date Range Concentration Range Action Level Industrial Hygiene 1/1/79 1201/79 100% Sam ple Dt Sam ple 9 Duration ty p e Em ployee Name BTO : 08 TEFLON L 0 C : 016 MONOMER ANALYZER COMPUTER ROOM 11/15m 61389 z 11/26/79 61390 11/29779 61391 Z z P B Chemical 08 08 C-8 BTO: 08 TEFLON L O G : 701 FIN E P O W D ER D R Y E R -E A ST S ID E #2 2/12/79 62674 z 12/13/79 62675 z C-8 C-8 BTO: 08 TEFLON .

AR226-2269 STT-91-1 APPENDIX I SPRUANCE C8 ASSESSMENT II

W ' N `) AR226-2305 01/14/2003 16:46 ' B1/0SB8B3 10;sg UW DEP LEBfiL SERVICES > 93403801 A i t t p - b r k & f i i m x lkUJL NO.948 P02 twt M o p l t M & e J ho.376 B0B1 ggrama*-, 122Erwit8*1*1 W SnhM ,OH4*H 5-1099 .?

AR226-2321 Ann K Masse ' 04/02/2003 06:15 PM To: cc: Subject: John W Milroy_lll/DDE/DuPont@DuPont, Stephen R Hastings/DDE/DuPont@DuPont, Edward J Lukosius/AE/DuPont@DuPont, Gregory P Shankwitz/CL/DuPont@DuPont Catherine A Barton/AE/DuPont@DuPont, Charles J Zarzecki/AE/DuPont@DuPont Data for air dispersion modeling Folks, Please provide the requested data to Cathy Barton (see attached e-mail) for the DDE process (Kalrez) and the DFS process by 4/11.

AR226-2352 EXP000228 MONITORING PROPOSAL FOR FLUOROPOLYMER m a n u f a c t u r in g SITES PRFELSUEONTRAOTPIOOLNYTMOETRHE TECHNICAL WORKGROUP January 15,2004 *i' EXP000229 AGENDA Introduction Proposal on Monitoring Site Specific Monitoring Plans Deca3tMur,aAndLDyneon Parkersburg, WV Summary Recommendation for Path Forward Daikin Monitoring Plan s INTRODUCTION Industry Commitment to Site Monitoring Importance of Addressing Data Needs Suggestion of a Tiered or Phased Approach EXP000230 INTRODUCTION (continued) Value of a Tiered or Phased Approach Science-based (first phases inform later phases) More effective More timely Contextual Data Collection Incorporates All Monitoring Commitments Program to have Transparency Data Review, Informed Decision Making, Technical Expert Collaboration EXP000231 PROPOSAL ON MONITORING Tiered or Phased Approach Focus on Two Locations, Two Sites Decatur, AL 3M & Dyneon Parkersburg, WV DuPont PhaPsheassoefIthe- CLomOpI rCeohmenmsiivtme Menotsn,itHorisintogriPcr/Oognrgaoming Monitoring Activities Phase II - Additional Monitoring Proposal (Dec. 2003) Consideration of Peer Consultation for Assessment o f Data to Inform Decisions for Phase III Monitoring Plans Phase III - Additional Monitoring EXP000232 SITE SPECIFIC MONITORING PLANS Decatur, AL - 3M & Dyneon Parkersburg, WV - DuPont DECASTIUTRE,DAELS-C3RMIP&TIDOYNNEON 900 Acre Site in a Rural Area A Number of Industrial Complexes in the Vicinity River Width in Vicinity ~ 3-4 miles Distance to the City of D ecatur-4 miles Groundwater Flow well Characterized in Northern part of site No private Wells within At least 1.5 Miles of the Site On-Site Wildlife Habitat Area on 3M Property -- FMoarnmaegreSdlAudrgeae wInicthorLpiomraittieodnPAurbelaic Access EXP000234 Figure ADecSaMtuurrrDoAuynnlaedboiannmg Aa rea Ma UTM North km a -ooor0oo5 in UTM East km EImdgaegemcaorukritnegssy sohfoUwSnGinS Universal Transverse Mercator Coordinates Zone Daikin Property Line ^ Property Boundry Source locations DESCRDIPETCIOANTUORF, ASLLU-D3GME&INDCYONREPOONRATION Permitted Activity Full Historical Documentation - Number of Fields - Quantity of Solids Deposited Discontinued in 1998 FAireeladswCitohnLveimrtietdedtoPaubMliacnAagccedesWs ildlife Habitat (Part of Area now owned by Daikin) EXP000236 FigureDAecMatuAreDrAyianllaebPoanhmotaograph UIM North km UTM East km IEmdaggeemcaorukritnegssysohfoUwSnGinS Universal Transverse Mercator Coordinates Zone A.

AR226-2447 vS TT" w't>.

A R 2 2 6 -2 6 2 9 17 t'ft O P f The miracles f science Dordrecht Works C-8 Sampling Summary-Revision 1 Groundwater Sampling Results la r c h 2003 AR226-262 Revision 1 Note: Revision 1 of the Dordrecht Works March 2003 sampling event summary was prepared based on new well constriction information received in June 2003.

AR226-2652 AR226-2652 SEPTEMBER 2002 THROUGH AUGUST 2003 AIR DISPERSION MODELING ANALYSIS OF APFO EMISSIONS DuPont Washington Works Facility Parkersburg, West Virginia Prepared for: West Virginia Department of Environmental Protection Division of Air Quality 7012 MacCorkle Ave, SE Charleston, WV 25304-2943 Prepared by: DuPont Engineering Technology (DuET) Environmental Section Wilmington, DE 19898 October 17,2003 1.

AR226-2807 TRADE SECRET DuPont-12737 Study Title H-25538: Corrositex In Vitro Test Laboratory Project E): DuPont-12737 Author: Carol Finlay, B.A.

AR226-2818 The Embryo-Fetal Toxicity and Teratogenic Potential of Ammonium Perfluorooctanoate (APFO) in the Rat (Work Done for Hire) Robert E.