Ml Wilmington, DE I9S05 DuPont Engineering November 20,2002 David P.

Pleasecontact meifyouhaveany questionsregardingthis submission. 3 Best regards, lh > RoSbt.eTretcCh.noBluocgky,CPohnDsu.ltant FPahco:ne:0238092825121425435 Email: robbeuckr@utsa..ducpo.nt.com way Pa on oe id I Conky DuPont Product Stewardship Update United States Environmental Protection Rr Agency ` 17 December 2001 R.

Based on the current data available, DuPont believes the following pathway does exist.

I. du Font de Nemours and Company (DuPont).

Box 50, Elkton Road Newark, DE 19714-0050 Performing Laboratory Study Number AA26XP.33LBTL DuPont Project ID DuPont-3870 Work Request Number Company Sanitized.

Test Substance The test substances vere supplied by DuPont Fibers and DuPont Speciality Chemicals, E.

Test Substance The test substances -.ere supplied by DuPont Fibers and DuPont Speciality Chemicals, E.

Does not contain TSCA CBI 3 H1-02-4D7o4s3e;OBriaolpGearsviasgteeSntcuedSycrienenRiantgs DuPont-11558 --_ LIST OF TABLES Page I.

assumptions are true and have set forth below a program of research to meet repellenFtsluaonrdotbealrorimeerrssfaorrecuasrpeedtsi,n calontuhminbge,ruopfhoslpsetceirayl,izaenddppraopdeurc;tsmoilncdlurdeilnega:seswaftorerplaanstdicoiland rfluobobrepromlioslhd,inign;ksaaqnudeoaursafniglemoffosrimmiinlgarfaopapmlsic(atAioFnsF. fTirheefrieghitsionnglaygeonntse);TRanPdmweemltbienrg cagoemnptasnfyor (DuPont) that manufactures both the basic telomer chemicals and end-use products in the United States.

Ann Proposed Agenda for Meeting 8etween DAQ and DuPont. 4 /2 4 /0 2 1:00- 1:10 Introductions and agenda review 1:10- 1:30 DuPont Modeling Methodology and input data 1:30-2:00 DuPont Modeling Results 2:00-2:30 DAQ Modeling approach and plans 2:30-3:00 Discussion and path forward 3:00 Adjourn <<Air Modeli

i 19 of 30 AR 826 - 1503 C-8 DATA SUMMARY REPORT CONSENT ORDER GWR-2001-019 DuPont Washington Works Facility and Local, Letart And Dry Run Landfills February2003 ProjectNo.T74o23mes Preparedby 18)9 ON NIvInDD QUPORR CORPORATE REMEDIATION GROUP An Alliance between i DuPont and URS Diamond : Barley Mill Plaza, Building 27 00000: # Wilmington, Delaware 19805 3 i OEPA 4053 ary DuPont Engineering February5,2003 Er WestVigini DeparofEtnvmiroenmnenttal Protection Divisionof WaterResources C12h01GarerenlbWreieessrtStVtiroregenitn,ia 25311-1088 tdSeraaee mtnehu IFi "Tre mn FEB - 6 2003 ofic i - oe RE: CCo4nsDeanttaOSrudemrmaGrWyRR-e2p0o0r1t019 DearMi.

Box 50 1090 Elkton Road Newaric,DE 19714-0050 Peifonning Labogatory Study Number AA34BKL502001.BTL DuPont Project IP DuPont-4670 DuPont-4670 Bleverse Mutation Service Code Pagel of 63 Reverse Mutation DuPont-4670 GOOD LABORATORY PRACTICE COMPLIANCE STATEMENT Study No.

DuPont-2922 7Company Sanitized.

D uPont H askell Laboratory ^3 DuPont Haskell Laboratory for Toxicology and Industrial Medicine Elkton Road, P.0.

D oes not contain TSC CBf DuPont-1712 " SSSSESSSSSS" *" BaRn^aEdsmSehUdoabdLoinlTnitoSvieicssouwiaoelrreth0ro,0ug,0h,o"0u".t8tvh0jeU,*ta.ensdt^1T00tme%B5#r0am0t0lh-eria0-R*,/CTMTtLejaa^nM0LdltOushnteio^0nfns5tMnw,1e.nOr0ed.5s5al00i^g.0^ha0ntwlmdy^gc5l/0'oL0utdmeybsgtet/chtLworotneeucesgentnhs2toorualuattitntoihodnensM,stewOsetmregc/Lle.at rAelslp..emcttmivremlyu.aHiitvien4a8ra-hmoeuterrEsGwoe,rebawseitdhionnacnceoptnabjlecw .