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_ + CBaigloennidaalrRYeepaorrst offor20th0e2Maannduf20a0c3ture ofAPFO DuPont Com--pFayaettneviylle Work ARZ Page old 1876 Biennial Report for the Manufacture of APFO Calendar Years of 2002 and 2003 DuPont Company -- Fayetteville Works Naontdel:orTmhodeiifnicfaotrimoant.ion contained inthisdocumenitssubmitied voluntarily and may be subject tofuture revision CONFBUI SINED SS INEFORN MATT IONIISREA DACL TED o"TfhiIsntreenptor(tLiOsI)sutbomSittetepdhepnurLs. uJaonhtntsoonc,omAmssiitsmteannttsAdmmaindiestbryatDourP,oUnStEiPnAa,Meanrtcithle1d4", V2o0l0u3n,taLretyter Actions to Evaluate and Control Emissions of Ammonium Perfluorooctanoate (APFO)" PbuergsiunannitngtoiAn dtdheenydeaurmaIfItIoerftphriosduLcOtLi,onprcoovmimsieonnc5e,sa, faancidlictyonmtainnuufiancgtufrorinfgivAePcFoOnsiescurteqiuviereydeatros, following, for the prior calendar year, report to EPA biennially the following information on a calendar year basis: 1.

. . . 3M General Offices Lwmocesnerses ne ME A951 AR226-1895 3M September 24, 20G4 STF 27 [1 6:15 Nv BpP-or07B-7/75 24p.

AR224- 1905 Sponsor: St.Paul,aMMinnesota <n OCnHcARstLnLEdABSpOyRnRATIrOVsREeInERiS Study Title: Cell Proliferation Study with N-Ethyl Perfluorooctanesulfonamido Ethanol (N-EtFOSE; 3M T6316.11), Perfluorooctane Sulfonic Acid Potassium Salt (PFOS; 3M T-6295.16), and N-Ethyl Perfluorooctanesulfonamide (N-EtFOSA; 3M T-7091.1) in Rats Study Number: TRC 1132-100 Performing Laboratory: Gene Logie, Ine.

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AR226-2054 BEST COPY AVAILABLE EID077167 -..-. * =

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AR226-2255 Chris EShoop 02/08/2002 03:23 PIVI _ _ _____ To: Debbie J Mulrooney/AE/DuPont@DuPont cc: Robert F Pinchot/DEV/AE/DuPont@DuPont, Stephen J Gissy/AE/DuPont@DuPont, Roger J Zipfel/AE/DuPont@DuPont Subject Re: C8 2001 Emissions D Debbie, I have calculated emissions for 2001 but the emitted amounts are not broken out by emission point.

AR226-2262 ISC Modeling Methodology and Results Emission Source Information The ISC3 model was used to calculate ambient ground-level vapor concentrations and deposition rates for year 2000 actual C8 emissions from the Washington Works site.

AR226-2292 ' ' Chris E Shoop 10/17/200210:07 -":::'::;^^;N%^^i;%i:-'; AM____________________ To: Robert LRitchey/CUDuPontQDuPont CK Oscar T Gaiza/ABDuPont@DuPonl, Ta-Wei Fu/SBDuPont@DuPont, Fred M Lentz/SE/DuPont@DuPont, Kari G Kronberg/AE/DuPon@DuPont,Debbie J Mulrooney/AE/DuPont@DuPont, Robert I Wevodau/SE/DuPont@DuPonl Subject Explanation ol Input Data far Modeling Studies Bob.

AR226-2305 Bl/i4^Z303 ' ffi-'te'-SBEQ 16:46 la'as W DBP LBBRL SER-IICES 93403681 Amp-k?

AR226-2331 CADocumcnKi and Settings\BARTONC\Dc5i<top\c8\modeling How should we address the request for short-term air expo assessment?

AR226-2332 y Charles J Zarzecki 04/11/2003 03:49 PM To: cc: Subject: Catherine A Barton/AE/DuPont Wash Works Modeling Cathie, Not as easy as I thought it would be.

AR226-2397 B(^ polymer Products Department Research & Development Division Experimental Station cc: M.

AR226-2434 ^v-;-^ BRANDERA AT A1 AT EUOIS2 I'"-" w""" 02/18/94 02:27 PM s.