WPC. ΏQ;1I&iCl$p=Wy4-O]\FQȘ*ܽ-SWTPIY [7XmBL U޾6nl, r~CW\u1\$'$ #"2X UNܤ9•b !CͿacm^:Aju*F^A UaWrqnڄ}$BDioFo 4핸=F wz&Edk"+#Al[<ɤg!. W$ X" 3)/',i<@Z#R!T/`)𠢮>GH$a{ƈVm>h!pNG{JgoDnT6,#kY\K% [l;" '!u|,0L]- fmx ьSm,2i6eUN % U@&fnv 04#Ww@_4-UN(9 Z 6Times New Roman RegularX* `(CG TimesScalable3|w* `(CG TimesScalablelarXXw P7XP( T$   DDUEUUED[$bU ##Xd#(uH Z 6Times New Roman Regular T!   ݛX!XXX  ќX!XXX! March19,1998  Mr.KevinTubbsDirector,EnvironmentalTechnologỳAmericanStandardOneCentralAvenuePiscataway,NewJersey088556820DearMr.Tubbs:  ThisisinresponsetoyourFebruary3,1998lettertoRichardWilson,ActingAssistantAdministrator,OfficeofAirandRadiation,requestinganinterimpolicydeterminationrelatedtotheNewSourceReview/PreventionofSignificantDeterioration(NSR/PSD)significancelevelforozonedepletingsubstances(ODS).Iunderstandthatyourconcernfocusesonverysmallamountsofpotentialfugitiveemissionsfromrefrigerationandairconditioningequipment.  OnJuly23,1996,theEnvironmentalProtectionAgency(EPA)proposedasignificancelevelof100tonsperyear(TPY)forODS.TheEPAreceivednoadversecommentsonthisproposedsignificancelevel.Inaddition,theEPArecentlyrespondedtoasimilarrequestmadebytheStateofLouisianasDepartmentofEnvironmentalQuality,statingthatEPAwouldhavenoobjectiontotheStatenotconductingaPSDreviewforODSemissionsfromachlorofluorocarbon(CFC)recyclingandreclamationfacilitythatwouldpotentiallyemitsubstantiallylessthan100TPYofODS.  TheEPAhasreviewedtheemissionscharacteristicsassociatedwithrefrigerationandairconditioningunits,suchascommercialrefrigeration,industrialchillers,alltypesofairconditioners,andotherrelatedrefrigerationequipment.Incaseswhereasourceisaddingcoolingcapacity,EPAbelievesthatpotentialemissionsfromtheaddedrefrigerationandairconditioningunitswillbesignificantlylessthan100TPY.Ourunderstandingisthatanyanticipatedemissionsfromtheseunitswouldprimarilybefugitive,estimatedbetween5and20poundsperyear.TheEPAscurrentrefrigerantrecoveryandleakrepairrequirementsandthehighpriceofrefrigerantshelptoensurethattheseemissionswillremainminuscule.Inlightoftheseandotherfactors,EPAwillnotobjecttoaStateorlocalairpollutioncontrolagencys̛̜decisionnottoconductaPSDreviewforrefrigerationandairconditioningunitswiththepotentialtoemitODSinrelativelyminutequantities.  ThisresponsehasbeencoordinatedwithEPAsOfficeofGeneralCounsel,OfficeofEnforcementandComplianceAssurance,andOfficeofAtmosphericPrograms.Ifyouhaveany -n(-  7!XXdXXd7  questionsorconcernsonthisissue,pleasecontactDavidSolomonoftheIntegrated 7!XXdXXd7  ImplementationGroupat(919)5415375. 7!XXdXXd7   7!XXdXXd7   7!XXdXXd7   7!XXdXXd7    Iappreciatetheopportunitytobeofserviceandtrustthatthisinformationwillbehelpful 7!XXdXXd7   7!XXdXXd7  toyou. 7!XXdXXd7   7UXXdXXd7   7!XXdXXd7   7UXXdXXd7  񀀀Sincerely, 7!XXdXXd7  񀀀/s/ThoHenryThomasfor̀JohnS.Seitz̀Director̀OfficeofAirQualityPlanning̀andStandards̜cc:  BruceBuckheit,Director,AirEnforcementDivision,OECA z    AlanEckert,AssociateGeneralCounsel,AirandRadiationDivision,OGC  PaulStolpman,OAP̜  , Лbcc:  LeaAnderson,OGC̛  KarenBlanchard,MD12  ̛  ThomasCurran,MD12̛  JonDevine,OGC̛  MichealForlini,OAP̛  CarolHolmes,OECA̛  DavidSolomon,MD12̛  SusanStendebach,OAP̛  NSRContacts,IIG̛  ThisletterwascoordinatedwithSusanStendebach,OAP;LeaAnderson,OGC;andCarolHolmes,OECA̛OAQPS:ITPID:IIG:DSOLOMON:cbaines:x15319:MD12:031798:File:a:_Solomon/tubbs.wpd_񛀄IIGfilecode:_CORR_127