Document DGdq6beOzvBr65JMXzqBed0vn

! NEPA ARETES02, we :ganter Jonson & HLL PLLC 306 345 7600; | 01/15/03 12:21PU; 4880; page 2/3 Chasen | January 7,2008 [3 IRD vonvicrane von [Jad2a) . | Mr. Paul Bassert | WEalshDiunPgdtonntdWoerNkesmours and Company | P.0.Box 1217 | Parkersburg,WestVirginia 26102 freer Jr ---- . Fe] : | Re: Ammonium Perfluorooctanoate (C8) Impacts in Little Hocking, Ohio i Dear Mr, Bassert: . e1 mairsmswirointsingoftoCe8xpfrreosmsyOohuiroWEaPsAh'isngctoonnceWmosrkwsithfacrieistpy.ectWteo alhravimepabcetesninfoOlhloiwoindguethteo | progress on the evaluation and revafiambelewnt impdauactotthsis facility, as wellas the | evaluation of ambient screening levels for both the air and water pathways developed by } tInheprCo8grAessssebsysmUe.nSt.oEfPToAxiacnidtytTheeaScmi(eCnAcTeTA)d.viWseorayrbeoaalrsdo faowrarreeasofseasdsdiitnigontahleetvoaxilcuiattyiaonnsd | possible carcinogenic effects of C8. || lienvaedldsitoifonC,8w,eashapvreedbiecteendcboyntaaicrtqeudablyitya mcoidtiezlainnsggroofuypeaerxp2r0e0s0siancgtucaolnecmaimsosvioenrs.ambSiheonrtt || ftuallmy cloenveslisduesreeddtboyatshseeCssAwTortkepalmacinetehxepodseuvreelsopwmeernetiodfenatnifiaeird sacsrheeeanlitnhgblaesveeldfloerveCl8s.not _} Mystaffhasassessedthemodeled ambient impactsresultingfromtheyear 2000 emission | levels. Among the averaging times evaluated, my staff has identified predicted eight-hour | concentrations well above the ACGIH health based work place standard at multiple || wroecrekpptloarcseineOxhploos.urWehsi,lethtehseeseparmedbiicetnetd concentrations may not be concentrations raise our directly comparable to level of concern with i regards to short term exposures to workers and sensitive populations. et || sBtuacPkonontahamsaijnodricsaotuerdcet,haatsfuwteulrleapsroadgurceteimoennltesvelwsi,thmoUd.iSf.icEaPtiAontso froedausccerurbebleera,seas ttaolaelrl || -mweaduildawbilelbliemlitofwuttuhroeseimapsascotcsiianttehdewairteha.yeaYrou20p0r0esaecnttueadl iInmfpoarcmtast.ionAtnhda,t ftuhteuryeeairmp2a0c0ts0 | emissions are the basis of your agreement with West Virginia to limit future air emission [| alecverlse, thHaotwtevuerre, awmebideontnoatifbmelpiaecvtesthwaitltbheerSegins iefnaonucgyh bceeritoawin2ty60in0tlheevealsssumptions to Co a+ EiriassS o c 000006 Ch , oo | | Page2 . | MSr.ePnaualy 33008 . | We are raquesting that you work with the State of West Virginia to adapt enforceable { pautnetraimllittrheerceepsopttttreoincrttsiiaoblnesetyfhofanetcdtwsitlholefrpCel8adnuatcrefeeafnumclbleyileeivnneat.luiWamtpeeadcb.teslOibneevcleeotwthhattehsteehiwesovirasklapulaptaricuoednesenxatprioensctueorrmeipmllesittmeiept,.s future acceptable emission levels can be determined. If you have ary qustions with respect to our concems, please feel free to contact Bob. Hodanbosi of the Division of Alr Pollution Control at 614-644-2270. LAS Sincerely, . !| DiCrhercitstaorpher Jones | ce Benard J. Relly Esq., E.l. Du Pont de Nemours and Company. Legal Dept. | Johny Benedict, WV Department of Environmental Protection !! : | : i i | i i i | | : i 000007 -