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‹D?Óò òÔ_ÔFederal€Registeró ó€/€December€3,€1993€/€Noticesà€hhC(#àò ò63941„52ó óˆÐ ° Ðð2ðððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððð0ðÐ à Ðò ò[AD„FRL„4808„8]€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€Ð d´ Ѐ€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€€ÌNational€Emission€Standards€for€Hazardous€Air€Pollutants€Schedule€Ïfor€the€Promulgation€of€Emission€Standards€Under€Section€112(e)Ïof€the€Clean€Air€Act€Amendments€of€1990€€ÌÌAGENCY:ó óà V àEnvironmental€Protection€Agency€(EPA).Ð ¤ ô ÐÌò òACTION:ó óà V àNotice€of€the€source€category€schedule€for€standards.€Ð X ¨  Ðð2ðððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððð0ðÐ 8ˆ  Ðò òSUMMARY:ó óà V àThis€notice€publishes€the€schedule€for€standards€asÐ  \  Ðrequired€under€section€112(e)€of€the€Clean€Air€Act€as€amended€inÏ1990€(1990€Amendments).€€A€draft€schedule€for€the€promulgation€ofÏemission€standards€providing€the€opportunity€for€public€commentÏwas€published€in€the€ò òFederal€Registeró ó€(57€FR€44147,€September€24,Ð h¸  Ð1992).€€Today's€schedule,€which€satisfies€the€requirement€ofÏsection€112(e)(3)€that€the€Administrator€publish€a€schedule€forÏthe€promulgation€of€emission€standards,€was€established€afterÏconsidering€the€public€comments€and€further€EPA€review.€€ThisÏschedule€establishes€deadlines€for€the€promulgation€of€emissionÏstandards€for€the€categories€of€sources€emitting€hazardous€airÏpollutants€(HAP's)€initially€listed€pursuant€to€section€112(c)(1)Ïand€(3).€€Ìà  àThe€initial€list€of€categories€of€sources,€developed€underÏsection€112(c),€was€published€in€the€ò òFederal€Registeró ó€(57€FRÐ ¼  Ð31576;€July€16,€1992).€€The€initial€list€includes€166€categoriesÏof€major€sources€and€eight€categories€of€area€sources€for€a€totalÏof€174€source€categories.€€The€schedule€for€standards€isÏÑ€+Ñorganized€such€that€the€174€listed€source€categories€are€groupedÏin€four€separate€timeframes€with€promulgation€deadlines€ofÏNovember€15,€1992,€November€15,€1994,€November€15,€1997,€orÏNovember€15,€2000.Ìà  àSources€within€the€listed€categories€will€be€subject€toÏemission€standards€developed€pursuant€to€section€112(d)€inÏaccordance€with€today's€schedule.€€In€the€event€an€applicableÏstandard€is€not€promulgated€on€schedule€for€a€listed€category€ofÏmajor€sources,€the€owner€or€operator€of€a€major€source€in€suchÏcategory€may€be€subject€to€emission€limitations€determined€on€aÏcase„by„case€basis,€pursuant€to€€€section€112(j).€€Section€112(j)Ïrequires€that€the€owner€or€operator€of€any€major€source,€in€aÏcategory€for€which€emissions€standards€are€delayed€by€at€least€18Ïmonths€from€today's€scheduled€date€for€promulgation€of€standards,Ïmust€submit€a€permit€application€to€the€applicable€permitÏauthority€in€compliance€with€title€V€of€the€1990€Amendments.€€TheÏcase„by„case€equivalent€emission€limitations€by€permit,€underÏsection€112(j),€are€discussed€more€thoroughly€in€section€I.B.€ofÏtoday's€notice.ÌÐ Ô-$)1=B ÐÑ+Ñâ +âÑ8€*¢¤*XXdÔ*XXdÔ8Ñâ +âÑ  Ñò òEFFECTIVE€DATE:ó ó€€December€3,€1994.Ð L ÐÌò òADDRESSES:ó ó€€Relevant€information€can€be€found€in€the€ò òFederalÐ ´ ÐRegisteró ó€notice€(57€FR€44147;€September€24,€1992)€entitledÐ à” Ð"National€Emission€Standards€for€Hazardous€Air€PollutantsÏ(NESHAP);€Availability:€€Draft€Schedule€for€the€Promulgation€ofÏEmission€Standards"€and€also€in€the€ò òFederal€Registeró ó€notice€(57Ð h  ÐFR€31576;€July€16,€1992)€entitled€"Initial€List€of€Categories€ofÏSources€Under€Section112(c)(1)€of€the€Clean€Air€Act€AmendmentsÏof€1990."Ìà  àòòDocket:óó€€Docket€No.€A„91„14,€containing€informationÐ Äx  Ðconsidered€by€the€EPA€in€development€of€the€schedule€forÏstandards,€is€available€for€public€inspection€and€copying€betweenÏ8:30€a.m.€and€3:30€p.m.,€Monday€through€Friday,€at€the€EPA's€AirÏDocket€Section,€RoomM1500,€U.S.EPA,€401M€Street,€Southwest,ÏWashington,D.C.20460.€€A€reasonable€fee€may€be€charged€forÏcopying.ÌÌò òFOR€FURTHER€INFORMATION€CONTACT:€ó óà õ àFor€information€concerningÐ p$ Ðcategories€involving€the€production,€handling,€refining€or€use€ofÏchemicals€or€petroleum,€or€products€thereof,€contact€Mr.€DavidÏSvendsgaard,€Chemicals€and€Petroleum€Branch€(MD„13),€EmissionÏStandards€Division,€U.S.EPA,€Research€Triangle€Park,€NorthÏCarolina27711,€telephone€number€(919)541„2380.€€ForÏinformation€concerning€categories€involving€fuel€combustion,Ïincineration,€metals€and€minerals€processing,€contact€Mr.WilliamÏMaxwell,€Industrial€Studies€Branch€(MD„13),€telephone€numberÏ(919)541„5430,€at€the€above€address.€€For€information€concerningÏpollutant€health€effects€and€the€Source€Category€Ranking€System,Ïcontact€Mr.€Charles€French,€Pollutant€Assessment€Branch(MD„13),Ïtelephone€number€(919)541„0467€at€the€above€address.€€ForÏgeneral€information€concerning€this€notice€contact€Mr.€French€orÏMr.€Svendsgaard.ÌÌò òSUPPLEMENTARY€INFORMATION:ó óÐ ¼"p" ÐÌà  àThe€information€in€this€notice€is€organized€as€follows:ÌÌI.à  àIntroductionÐ &Ì& Ðà  àA.à0 V àInitial€List€of€Categories€of€Sources€Ðì&  'V (#V (# Ðà  àB.à0 V àClean€Air€Act€Requirements€for€the€Schedule€ÐÀ't!(V (#V (# Ðà  àC.à0 V àSchedule€for€Coke€Oven€BatteriesД(H")V (#V (# Ðà  àD.à0 V àSchedule€for€Publicly€Owned€Treatment€WorksÐh)#*V (#V (# ÐII.à  àBackground€to€the€Schedule€for€StandardsÐ <*ð#+ Ðà  àA.à0 V àCriteria€for€Establishing€the€ScheduleÐ+Ä$,V (#V (# Ðà  àB.à0 V àThe€Source€Category€Ranking€System€Ðä+˜%-V (#V (# Ðà  àC.à0 V àApplication€of€Efficiency€of€Groupingи,l&.V (#V (# Ðà0  àD.à0V (#(#àOther€Considerations€for€SchedulingÐŒ-@'/V (#V (# ÐIII.€Summary€of€Public€Comments€and€EPA's€ResponsesÌà  àA.à0 V àOverviewÐ ÔV (#V (# Ðà  àB.à0 V àComments€and€Responses€Related€to€Category€DefinitionsÐô¨V (#V (# Ðà0  àC.à0V (#(#àComments€and€Responses€Related€to€the€Source€Category€Ð È| ÐListÐ V (#V (# Ðà  àD.à V àComments€and€Responses€Related€to€Ranking€MethodologyÐ p $ Ðà0  àà V à1.à © àGeneralÐD ø(#(# Ðà  àà0 V à2.à © àExposure€ScoreÐ ÌV (#V (# Ðà0  àà V à3.à © àHealth€Effects€ScoreÐì  (#(# Ðà  àà0 V à4.à © àEnvironmental€EffectsÐÀ t V (#V (# Ðà  àE.à0 V àComments€and€Responses€Concerning€Category€SpecificÐ ”H  ÐScheduling€Ð V (#V (# Ðà  àF.à V àComments€and€Responses€Related€to€FlexibilityÐ <ð  Ðà  àG.à0 V àComments€and€Responses€Concerning€Efficiency€ofÐ Ä  ÐGroupingÐ V (#V (# Ðà  àH.à V àComments€and€Responses€Related€to€Other€Considerations€Ð ¸l  ÐIV.à  àChanges€to€the€Draft€Schedule€Ð Œ@  ÐV.à  àSchedule€for€Promulgation€of€Emission€StandardsÐ ` ÐVI.à  àAdministrative€RequirementsÐ 4è Ðà  àA.à V àDocketÐ ¼ Ðà  àB.à V àRegulatory€RequirementsÐ Ü Ðà  àà V à1.à © àGeneralÐ °d Ðà  àà V à2.à0 © àExecutive€Order€and€Office€of€Management€andÐ „8 ÐBudget€ReviewÐ © (#© (# ÐVII.€Organization€of€the€Schedule€for€StandardsÌTable€1.€„€Categories€of€Sources€and€Regulation€PromulgationÏSchedule€by€Industry€GroupÌTable€2.€„€Categories€of€Sources€and€Regulation€PromulgationÏSchedule€by€Regulatory€DeadlinesÌÌAcronym€List:€ÌÌATB€=€Aquatic€Toxicity€and€BioconcentrationÌCTG€=€Control€Techniques€GuidelinesÌEPA€=€Environmental€Protection€AgencyÌFR€=€€Federal€RegisterÌHAP€=€Hazardous€Air€PollutantÌHON€=€Hazardous€Organic€NESHAPÌMACT€=€Maximum€Achievable€Control€TechnologyÌNESHAP€=€National€Emission€Standards€for€Hazardous€Air€PollutantsÌRTECS€=€Registry€of€Toxic€Effects€of€Chemical€SubstancesÌSCRS€=€Source€Category€Ranking€SystemÌSIC€=€Standard€Industrial€ClassificationÌSOCMI€=€Synthetic€Organic€Chemical€Manufacturing€IndustryÌÌò òI.à  àIntroductionó óÐ +D%- ÐÌòòA.à  àInitial€List€of€Categories€of€Sources€óóÐ D-ø&/ Їà  àA€preliminary€draft€list€of€over€700categories€andÏsubcategories€of€sources€emitting€one€or€more€of€the€HAP's€listedÏin€section112(b)(1)€of€the€1990€Amendments€was€published€in€theÏò òFederal€Registeró ó€for€public€comment€on€June21,€1991Ð È| Ð(56FR28548).€€After€consideration€of€public€comment€and€furtherÏEPA€review,€the€list€was€revised€and€now€contains€174€categoriesÏof€sources€(i.e.,€source€categories).€€This€initial€list€wasÏpublished€as€required€by€section€112(c)(1)€of€the€1990€AmendmentsÏon€July€16,€1992€(57€FR€31576).€€The€reader€is€referred€to€thatÏnotice€for€information€regarding€the€development€of€the€list€ofÏsource€categories.ÌÌòòB.à0  àClean€Air€Act€Requirements€for€the€ScheduleóóÐHü (#(# ÐÌà  àSection112(e)€of€the€1990€Amendments€requires€theÏpublication€of€a€schedule€for€the€promulgation€of€emissionÏstandards€for€listed€source€categories€and€subcategoriesÏ(hereafter€referred€to€as€categories),€that€will€result€in€theÏpromulgation€of€regulations€pursuant€to€section€112(d)€for€allÏinitially€listed€source€categories€within€10years€of€the€date€ofÏenactment€of€the€1990€Amendments€(i.e.,€by€November15,2000).€ÏSection€112(e)(1)€requires€the€EPA€to€promulgate€regulations€forÏ40source€categories€within€2years€of€enactment€of€the€1990ÏAmendments€(i.e.,€by€November€15,€1992);€for€coke€oven€batteriesÏby€December€31,€1992;€for€25percent€of€all€initially€listedÏcategories€within4€years€(i.e.,€by€November€15,€1994);€for€anÏadditional€25percent€of€all€initially€listed€categories€withinÏ7years€(i.e.,€by€November€15,€1997);€and€to€complete€theÏpromulgation€of€regulations€for€all€initially€listed€sourceÏcategories€within€10years€(i.e.,€by€November15,€2000).Ìà  àIn€determining€priorities€for€promulgating€emissionÏstandards,€section€112(e)(2)€specifies€that€the€EPA€considerÏthree€criteria:€€(1)€the€known€or€anticipated€adverse€effects€ofÏHAP's€on€public€health€and€the€environment;€(2)€the€quantity€andÏlocation€of€emissions€or€reasonably€anticipated€emissions€ofÏHAP's;€and€(3)€the€efficiency€of€grouping€source€categoriesÏaccording€to€the€pollutants€emitted,€or€the€processes€orÏtechnologies€used.Ìà  àToday's€emission€standards€promulgation€schedule€wasÏrequired€to€be€published,€after€consideration€of€public€commentsÏpursuant€to€section112(e)(3).€€Today's€schedule€will€establishÏthe€timeframe€for€the€promulgation€of€section€112(d)€standardsÏfor€each€initially€listed€category€of€sources.Ìà  àSection112(e)(3)€explicitly€states€that€"the€determinationÏof€priorities€for€the€promulgation€of€standards...is€not€aÏrulemaking€and€shall€not€be€subject€to€judicial€review,€exceptÏthat,€failure€to€promulgate€any€standard€pursuant€to€theÏschedule...shall€be€subject€to€review€under€section€304€of€thisÐ P-'/ ÐAct".€€Therefore,€the€schedule€for€standards€published€today€isÏnot€a€rulemaking€and€is€not€subject€to€judicial€review.Ìà  àThe€Equivalent€Emission€Limitation€by€Permit€rule,€pursuantÏto€section€112(j),€which€was€proposed€in€the€ò òFederal€Registeró ó€onÐ È| ÐJuly€13,€1993€(58€FR€37778),€provides€for€additional€actions€inÏthe€event€the€Administrator€fails€to€meet€the€schedule€forÏestablishing€regulations€for€any€listed€category€of€sources.€ÏPursuant€to€section€112(j),€the€owner€or€operator€of€any€majorÏsource,€in€a€category€for€which€emissions€standards€are€delayedÏby€at€least€18months€from€the€date€contained€in€today's€scheduleÏfor€promulgation€of€standards,€must€submit€a€permit€applicationÏto€the€applicable€permit€authority€in€compliance€with€rulesÏimplementing€Title€V€of€the€1990€Amendments.€€[The€final€ruleÏpublished€on€July€21,€1992€(57€FR€32250)€establishes€requirementsÏfor€state€permit€programs,€and€a€final€future€rulemaking€willÏestablish€similar€requirements€for€Federally€issued€permits.]€ÏThis€permitting€requirement€is€not€applicable€until€after€theÏeffective€date€of€a€permit€program€in€a€State€and€not€sooner€thanÏ42months€after€enactment€of€the€1990€Amendments€(i.e.,€May15,Ï1994).€€The€permit€must€specify€emissions€limitations€that,€on€aÏcase„by„case€basis,€are€determined€by€the€Administrator€(or€theÏState)€to€be€equivalent€to€the€level€of€control€that€would€haveÏbeen€required€by€emission€standards€established€under€sectionÏ112(d).€€These€permits€will€be€reviewed€and€approved€by€theÏpermitting€authority€on€a€case-by-case€basis.€€For€moreÏinformation€and€specifics€concerning€section€112(j),€readers€areÏreferred€to€the€proposed€Equivalent€Emission€Limitations€byÏPermit€rule€which€was€published€in€the€ò òFederal€Registeró ó€on€JulyÐ ´h Ð13,€1993€(58€FR€37778).€€€Ìà  àSection€112(e)(1)€requires€EPA€to€develop€the€schedule€forÏemission€standards€based€on€categories€of€sources€"...initiallyÏlisted€for€regulation€pursuant€to€subsection€(c)(1)...."€€The€EPAÏhas€interpreted€this€to€mean€that€the€categories€of€sourcesÏincluded€in€today's€schedule€for€standards€must€be€the€sameÏcategories€of€sources€as€listed€in€the€ò òFederal€Registeró ó€(57€FRÐ Œ"@" Ð31576;€July€16,€1992).€€Ìà  àToday's€schedule€for€standards€is€consistent€with€theÏsection€112(c)€list.€€Pursuant€to€section€112(c)(5),€sourceÏcategories€subsequently€added€to€the€section€112(c)€list€shall€beÏscheduled€for€regulation€by€November€15,€2000,€or€2€years€afterÏthe€source€categories€are€listed,€whichever€is€later.Ìà  àSection€112(e)(3)€requires€the€EPA€to€publish€a€schedule€forÏpromulgating€standards€for€listed€categories€by€November€15,Ï1992.€€However,€section€112(e)€is€silent€concerning€theÏpermissibility€of€amending€that€schedule.€€The€EPA€has€no€intentÏto€defer€regulation€in€any€way€that€would€compromise€theÏnumerical€and€temporal€requirements€in€section€112(e)(1).€ÏHowever,€because€data€on€many€categories€of€sources€are€stillÐ \-'/ Ðvery€limited,€the€EPA€anticipates€that€there€may€be€circumstancesÏwhere€revision€of€the€schedule€would€better€serve€theÏprioritizing€criteria€in€section€112(e)(2).€€For€example,€the€EPAÏmight€obtain€new€information,€after€publication€of€today'sÏschedÓ?+ÿÿ ` ¸ hÀpÈ xÐ (#°ŒS?Óule,€indicating€that€emissions€from€some€categoriesÏscheduled€for€early€regulation€pose€less€public€health€and/orÏenvironmental€concerns€than€emissions€from€categories€scheduledÏfor€regulation€in€a€later€timeframe.€€Because€of€resourceÏconstraints,€it€is€unlikely€that€the€more€hazardous€categoriesÏcould€be€regulated€earlier€than€planned€unless€regulation€of€theÏrelatively€less€hazardous€categories€could€be€deferred.€€In€suchÏcase,€EPA€would€wish€to€comply€with€the€directive€in€theÏConference€Report€that€"[t]he€conferees€wish€to€emphasize€that€inÏpromulgating€standards,€the€EPA€should€devote€its€resources€firstÏto€those€pollutants€which€present€the€greatest€risk€to€the€publicÏhealth€and€the€environment."€(Conference€Report.€on€S.€1630,€H.R.ÏRept.€101„952,€101st€Cong.,€2d€Sess.€at€338,€1990).€€For€example,Ïif€EPA€could€shift€five€categories€from€the€10„year€timeframe€toÏthe€7„year€timeframe,€and€shift€five€others€from€the€7„yearÏtimeframe€to€the€10„year€timeframe,€this€action€might€moreÏeffectively€reduce€hazards€to€public€health€earlier€than€wouldÏstrict€adherence€to€today's€schedule.€€In€addition,€the€EPA€may,Ïat€its€discretion,€establish€standards€for€listed€categories€orÏsubsequently€defined€subcategories€sooner€than€scheduled€underÏsection112(e).€€The€EPA€may€consider€broader€categories€forÏestablishing€standards.€€The€EPA€may€aggregate€categories€orÏsubcategories€which€have€been€disaggregated€on€the€initial€listÏinto€a€single€category€on€any€revised€list.€€This€may€be€done€forÏthe€purpose€of€setting€a€single€emission€standard€for€theÏaggregated€category.€€ÌÌòòC.€€Schedule€for€Coke€Oven€BatteriesóóÐ ø¬ ÐÌà  àThe€1990€Amendments€establish€a€specific€timeframe€for€theÏregulation€of€coke€oven€batteries€(charging,€topside,€and€doorÏleaks).€€As€specified€in€section112(d)(8),€the€EPA€was€requiredÏto€promulgate€emissions€standards€for€this€source€category€byÏDecember31,€1992.€€An€emissions€standard€for€this€sourceÏcategory€was€published€in€the€ò òFederal€Registeró ó€on€October€27,Ð Ð%„& Ð1993€(58€FR€57898).ÌÌòòD.€€Schedule€for€Publicly€Owned€Treatment€WorksóóÐ X( ") ÐÌà  àThe€1990€Amendments€establish€a€specific€schedule€forÏpromulgation€of€emission€standards€applicable€to€Publicly€OwnedÏTreatment€Works€(POTW's).€€Section€112(e)(5)€requires€the€EPA€toÏpromulgate€emissions€standards€pursuant€to€section€112(d)€forÏPOTW's€by€November€15,€1995.Ð \-'/ Їò òII.à  àBackground€to€the€Schedule€for€Standardsó óÐ L ÐÌòòA.€€Criteria€for€Establishing€the€ScheduleóóÐ ´ ÐÌà  àIn€determining€priorities€for€promulgating€emissionÏstandards,€section€112(e)(2)€specifies€that€the€EPA€considerÏthree€criteria:€€(1)€the€known€or€anticipated€adverse€effects€ofÏHAP's€on€public€health€and€the€environment;€(2)€the€quantity€andÏlocation€of€emissions€or€reasonably€anticipated€emissions€ofÏHAP's;€and€(3)€the€efficiency€of€grouping€categories€according€toÏthe€pollutants€emitted,€or€the€processes€or€technologies€used.€ÏThe€first€two€criteria€are€addressed€by€the€Source€CategoryÏRanking€System€(SCRS)€which€is€discussed€in€section€II.B.€of€thisÏnotice.€€The€efficiency€of€grouping€criterion€allows€forÏoptimizing€regulatory€efficiency€by€considering€similaritiesÏamong€categories€of€sources,€including€emission€mechanisms€andÏcontrol€technologies.€€In€addition€to€these€criteria,€otherÏfactors,€such€as€the€public€comments,€further€technical€analyses,Ïthe€availability€of€data€for€standard€development,€time€needed€toÏdevelop€standards,€and€the€ability€to€meet€the€section€112(e)Ïnumerical€and€temporal€requirements,€were€considered€inÏestablishing€today's€schedule.ÌÌà  àThe€EPA€interprets€the€regulatory€schedule€mandated€by€theÏ1990€Amendments€as€the€placement€of€source€categories€into€groupsÏto€be€regulated€within€the€required€deadlines.€€For€this€reason,Ïtoday's€schedule€shows€whether€the€regulatory€effort€for€a€givenÏcategory€of€sources€is€scheduled€for€completion€by€November15,Ï1992;€November15,€1994;€November15,€1997;€or€November15,€2000.€ÏThis€schedule€does€not€establish€the€order€in€which€the€rules€forÏparticular€categories€will€be€proposed€or€promulgated.€€Rather,Ïit€requires€that€emissions€standards€pursuant€to€section€112(d)Ïfor€a€given€category€of€sources€be€promulgated€by€the€specifiedÏdate.€€ÌÌòòB.€€The€Source€Category€Ranking€System€óóÐ `## ÐÌà  àTo€assist€in€its€effort€to€meet€the€statutory€requirementsÏfor€schedule€prioritization,€the€EPA€developed€the€SourceÏCategory€Ranking€System€(SCRS).€€The€SCRS€combines€readilyÏavailable€health€effects€data,€emission€estimates,€and€populationÏinformation€to€rank€source€categories.€€ò òó óBy€incorporating€thisÐ d(") Ðinformation€the€SCRS€considers€a€broad€range€of€toxicologicalÏeffects€which€address€"...€the€known€or€anticipated€adverseÏeffects....on€public€health..."€criterion€under€sectionÏ112(e)(2)(A),€and€also€addresses€the€"...quantity€andÏâ âlocation..."€criterion€under€section€112(e)(2)(B).€Ð ˆ,<&. Ðà  àThe€SCRS€generates€a€score€for€each€source€category€based€onÏâ âemissions€estimates,€estimates€of€the€toxicity€of€HAP's,€and€to€aÏlesser€degree,€the€location€of€the€emitting€facilities.€€TheÏresult€is€a€scoring€system€by€which€a€source€category€is€rankedÏin€relation€to€other€listed€source€categories.€€Details€onÏscoring€methodology€and€data€input€are€discussed€in€the€ò òFederalÐ p $ ÐRegisteró ó€notice€for€the€draft€schedule€for€standards€(57€FRÐ P  Ð44147;€September€24,€1992)€as€well€as€in€the€"Methodology€for€theÏSource€Category€Ranking€System"€document€(Docket€No.€A„91„14,ÏItem€No.€IV„A„1).Ìà  àIn€developing€the€schedule€for€standards,€the€EPA€gatheredÏas€much€information€as€was€reasonably€practical€to€prioritize€theÏlisted€categories€of€sources.€€The€EPA€recognizes€that€the€SCRSÏcould€not€duplicate€the€level€of€analysis€performed€in€aÏregulatory€source€assessment€effort€for€an€individual€standard€orÏin€a€site€specific€risk€assessment.€€Given€that€the€SCRS€wasÏdesigned€to€aid€in€prioritizing€categories€of€sources€forÏdeveloping€the€schedule€based€on€varying€levels€of€information,Ïthe€SCRS€was€a€useful€tool€that€assisted€in€the€grouping€ofÏsource€categories€into€the€four€timeframes€specified€in€sectionÏ112(e).€€The€SCRS€was€not€the€sole€determining€factor€inÏestablishing€the€schedule€for€standards,€but€was€the€basis€ofÏEPA's€consideration€of€the€quantity€and€location€of€emissions,Ïand€public€health€effects€criteria.€€The€third€criterion€forÏestablishing€priorities,€the€efficiency€of€grouping,€is€discussedÏin€the€following€section.ÌÌÌòòC.€€Application€of€Efficiency€of€GroupingóóÐ ”H ÐÌà  àIn€developing€the€schedule€for€standards,€the€EPA€sought€toÏgroup€separate€categories€of€sources€into€single€regulatoryÏdevelopment€efforts€due€to€similar€processes,€emissionÏcharacteristics,€and€applicable€control€technologies.€€There€areÏsome€lower€priority€categories,€based€on€the€SCRS€results,€thatÏhave€similarities€to€higher€priority€categories.€€ThroughÏapplication€of€the€efficiency€of€grouping€criterion,€a€standardÏmay€be€completed€for€several€similar€categories€of€sources€at€theÏsame€time.€€By€using€the€SCRS€scores€in€combination€with€theÏefficiency€of€grouping€criterion,€EPA€has€sought€to€avoidÏduplication€of€effort€and€optimize€the€regulatory€developmentÏprocess.€€As€a€result,€some€categories€of€sources€that€might€haveÏbeen€scheduled€for€regulatory€development€at€a€later€date€basedÏsolely€on€the€SCRS€ranking€are€scheduled€earlier€due€to€theÏefficiency€of€grouping.€€An€example€of€this€efficiency€is€theÏpolymers€and€resins€I€group.€€Currently,€there€are€nine€sourceÏcategories€in€the€polymers€and€resins€I€group€that€are€allÏscheduled€in€the€4„year€timeframe.€€In€this€industrial€group,Ð \-'/ Ðregulatory€efforts€initiated€for€a€few€relatively€high„rankingÏcategories€are€also€applicable€to€additional€categories€thatÏranked€lower€in€the€SCRS.Ìà  àThe€efficiency€of€grouping€criterion€was€also€applied€toÏschedule€lower€ranked€categories€with€other€similar€categoriesÏwhere€regulatory€development€activities€have€been€initiated€orÏare€planned.€€Section183€of€the€1990€Amendments€requiresÏdevelopment€of€13control€technology€guidelines€(CTG's)€forÏvolatile€organic€compounds€(VOC's)€emissions€by€November,€1993.€ÏMany€of€the€categories€for€which€CTG's€are€being€developed€alsoÏemit€HAP's.€€Hence,€efficiency€of€grouping€may€be€achieved€byÏevaluating€HAP's€concurrently€with€VOC's.€€This€allows€EPA€toÏconsider€the€requirements€for€establishing€CTG's€and€maximumÏachievable€control€technology€(MACT)€standards€at€the€same€time,Ïand€to€make€them€compatible.€€This€strategy€provides€the€affectedÏindustries€with€greater€certainty€about€both€sets€ofÏrequirements,€so€that€both€can€be€considered€at€about€the€sameÏtime€by€an€owner€or€operator€in€developing€an€overall€controlÏstrategy.ÌÌòòD.€€Other€Considerations€for€SchedulingóóÐ Ü ÐÌà  àIn€addition€to€the€three€priority„setting€criteria€specifiedÏin€section€112(e)(2),€the€1990€Amendments€also€require€that€theÏEPA€regulate€certain€percentages€of€the€list€of€source€categoriesÏby€certain€dates.€€For€example,€the€EPA€is€required€to€regulateÏ25€percent€of€the€listed€categories€within€4€years€afterÏenactment.€€When€establishing€the€schedule€for€standards,€the€EPAÏalso€considered€the€time€and€resources€required€for€developmentÏof€emissions€standards.€€Several€categories€of€sources€have€beenÏstudied€previously€by€EPA,€and€a€good€understanding€of€the€basisÏof€a€technology„based€standard€is€available.€€All€the€2„year,€andÏa€substantial€portion€of€the€4„year€scheduled€standards€coverÏindustries€that€were€already€under€study€in€preparation€forÏregulations€at€the€time€the€1990€Amendments€were€passed.Ìà  àFor€other€categories,€where€little€information€is€currentlyÏavailable,€considerable€time€and€effort€may€be€necessary€toÏadequately€study€the€category,€analyze€the€processes,€identifyÏemission€points,€establish€regulatory€baselines,€evaluateÏpotential€control€strategies,€and€determine€the€appropriateÏregulatory€strategy.€€Therefore,€the€amount€of€availableÏinformation€was€another€factor€in€the€prioritization€of€sourceÏcategories.ÌÌò òIII.€€Summary€of€Public€Comments€and€EPA's€Responsesó óÐ È*|$, ÐÌòòA.€€OverviewóóÐ |,0&. ÐÐ \-'/ Ðà  àA€draft€schedule€for€standards€was€published€in€the€ò òFederalÐ L ÐRegisteró ó€on€September€24,€1992€(57FR44147),€and€was€followed€byÐ ,à Ða€public€comment€period€which€concluded€on€October€26,€1992.€€AÏtotal€of€18€letters€commenting€on€the€draft€schedule€wereÏsubmitted€by€industry€representatives€and€government€agencies.€ÏThese€comments€have€been€reviewed€and€placed€in€the€docketÏ(Docket€No.€A„91„14,€CategoryIV-D).€€A€summary€of€the€publicÏcomments€and€EPA's€responses€is€also€available€in€the€docketÏ(Docket€No.€A„91„14,€Item€No.€IV„A„3).€€The€major€commentsÏrelevant€to€the€development€of€the€schedule€for€standards€andÏEPA's€responses€are€summarized€below.ÌÌòòB.€€Comments€and€Responses€Related€to€Category€DefinitionsóóÐ T  ÐÌà  àFive€commenters€requested€that€the€EPA€provide€additionalÏinformation€with€the€schedule€notice€to€assist€owners€andÏoperators€in€determining€which€source€category€their€sourcesÏmight€be€included€in.€€They€contended€that€the€sources€and€HAP'sÏwhich€will€be€controlled€in€each€of€the€categories€were€notÏwell-defined€in€the€source€category€schedule€or€in€the€sourceÏcategory€list€ò òFederal€Registeró ó€publications.€€The€commentersÐ ´ Ðasserted€that€the€EPA€should€publish€a€description€of€each€sourceÏcategory€and€its€associated€HAP's€along€with€the€schedule.€€OneÏcommenter€suggested€the€EPA€develop€a€decision€tree€forÏdetermining€regulatory€applicability,€similar€to€the€one€beingÏdeveloped€for€the€SOCMI€source€category€(57€FR€62608;€DecemberÏ31,€1992).€€Another€commenter€recommended€a€hotline€beÏestablished€so€facilities€can€obtain€assistance€in€determiningÏwhich€category€a€process€falls€into.€€The€commenter€noted€thatÏwritten€communication€would€be€needed€and€that€the€determinationÏwould€need€to€be€binding.Ìà  àSeveral€commenters€suggested€that€a€list€of€major€productsÏfrom€each€category€be€included€in€the€schedule.€€One€commenterÏsuggested€that€a€list€of€relevant€Standard€IndustrialÏClassification€(SIC)€codes€also€be€included.€€The€commentersÏasserted€that€such€additional€information€would€assist€operatorsÏin€identifying€the€regulations€to€which€they€would€be€subject,Ïand€in€planning€and€allocating€resources€for€compliance.€€Ìà  àMany€commenters€suggested€the€EPA€include€table€3.1€of€theÏDecember€14,€1990€document€"Draft€Documentation€for€DevelopingÏthe€Source€Category€List"€in€the€schedule€notice€because€thisÏtable€provides€the€corresponding€speciation€profiles€used€toÏassociate€HAP's€with€source€categories€and€thus€helps€clarify€theÏsources€and€HAP's€intended€to€be€regulated€under€each€category.Ìà  àTwo€commenters€stated€it€was€essential€that€a€mechanism€beÏdeveloped€for€determining€under€which€category€a€production€unitÏis€included,€to€make€decisions€concerning€equivalent€emissionsÏlimitations€under€section112(j),€and€to€file€complianceÐ h-'/ Ðextension€requests€under€the€section€112(i)(5)€early€reductionÏprogram.€Ìà  àIn€response€to€these€comments,€some€of€the€information€theÏcommenters€requested€is€provided€in€the€EPA€report€for€theÏinitial€list,€"Documentation€for€Developing€the€Initial€SourceÏCategory€List€„€Final€Report"€(EPA„450/3„91„030;€July1992.€ÏDocket€No.€A„90„49,€ItemNo.IV„A„55).€€Hereafter€in€today'sÏnotice,€this€document€is€termed€the€"final€report."€€This€finalÏreport€contains€descriptions€of€each€listed€category€of€majorÏsources.€€Information€provided€includes€the€types€of€operations,Ïprocesses,€and€equipment€included€within€each€category.€€However,Ïthe€source€category€descriptions€in€the€final€report€areÏpreliminary,€and€may€be€revised€during€the€regulatory€developmentÏprocess.€€Also,€during€this€process,€the€EPA€may€discover€newÏinformation€about€the€various€industries€(such€as€differentÏprocesses€or€emission€points)€that€require€adding€new€distinctÏsource€categories€to€the€section€112(c)€list.€€Tables€3.1€and€4.1Ïof€this€report€contain€listings€of€some€of€the€HAP's€currentlyÏassociated€with€each€category€of€major€sources,€and€area€sources,Ïrespectively.€€These€tables€are€too€lengthy€to€incorporate€into€aÏò òFederal€Registeró ó€notice,€but€may€be€accessed€by€viewing€the€finalÐ Ü Ðreport€contained€in€the€docket€(DocketNo.A-90-49,€Item€No.€IV„¼A„55).€€Also,€people€can€obtain€copies€of€this€final€report€byÏcontacting€the€National€Technology€Information€Service€(NTIS)€atÏ5285€Port€Royal€Road,€Springfield,€Virginia€22161,€telephoneÏnumber€703„487„4650.€€The€NTIS€order€number€for€this€final€reportÏis€PB92„218429.€€Because€of€current€data€limitations,€a€moreÏcomprehensive€discussion€of€processes€and€equipment,€and€allÏassociated€HAP's€for€each€category€is€not€currently€available.€ÏDuring€the€course€of€regulatory€development,€each€category€willÏbe€further€examined€to€refine€the€source€category€descriptionsÏand€determine€specifics€about€processes,€equipment,€products,€HAPÏemissions€and€applicability.€€During€this€process,€relevant€SICÏcodes€might€be€identified€on€a€source€category€basis€where€goodÏcorrelations€can€be€determined.€€This€information€will€beÏavailable€from€the€respective€EPA€standard€development€teams,€whoÏwill€be€communicating€with€trade€groups,€and€other€interestedÏparties,€during€the€development€of€emission€standards.€€As€statedÏin€the€source€category€list€ò òFederal€Registeró ó€notice:Ð Ð%„& Ðà0  àÐ (#(# Ðà  àThe€Agency€recognizes€that€these€descriptions€[of€what€eachÏlisted€source€category€comprises],€like€the€list€itself,€may€beÏrevised€from€time€to€time€as€better€information€becomesÏavailable.€€The€Agency€intends€to€revise€these€descriptions€asÏpart€of€the€process€of€establishing€standards€for€each€category.€ÏUltimately,€a€definition€of€each€listed€category,€or€subsequentlyÏâ âlisted€subcategories,€will€be€incorporated€in€each€ruleÐ |,0&. Ðestablishing€a€NESHAP€for€a€category.€€(57€FR€31576;€July16,Ï1992).€Ìâ âà  àTherefore,€the€EPA€cannot€make€such€preliminary€descriptionsÏbinding.€€The€EPA€encourages€interested€parties€to€communicateÏwith€appropriate€EPA€standard€development€teams€early€in€theÏregulatory€process.€€Ìà  àIn€response€to€the€comments€relating€to€section€112(j),€theÏEPA€intends€to€make€information€available€regarding€sourceÏcategory€definitions,€applicability,€and€controls€before€theÏsection€112(j)€provisions€would€take€effect€for€a€sourceÏcategory.€€The€EPA€encourages€interested€parties€to€communicateÏwith€the€appropriate€EPA€project€teams€well€in€advance€of€theÏtime€that€section€112(j)€provisions€might€apply€for€a€sourceÏcategory.€€Readers€are€referred€to€the€proposed€EquivalentÏEmission€Limitations€by€Permit€Rule,€which€was€published€in€theÏò òFederal€Registeró ó€on€July€13,€1993€(58€FR€37778).€€Ð ¸l  Ðà  àThe€comments€relevant€to€section€112(i)(5)€of€the€1990ÏAmendments€have€been€submitted€to€the€EPA€project€teamÏimplementing€this€program.€€The€early€reductions€project€team€isÏaware€of€the€commenter's€concerns€about€applicability.€€Again,Ïthe€EPA€encourages€the€interested€parties€to€communicate€with€theÏappropriate€project€teams€to€discuss€these€concerns.€Ìà  àRegarding€the€commenter's€suggestion€to€develop€decisionÏtrees€to€assist€with€determining€regulatory€applicability,€theÏEPA€believes€that€the€commenter€is€referring€to€the€applicabilityÏdecision€framework€included€in€section€VI.A.€of€the€proposedÏemission€standard€for€the€SOCMI€(57€FR€62608;€December€31,€1992),Ïwhich€is€commonly€referred€to€as€the€Hazardous€Organic€NESHAPÏ(HON).€€Similar€decision€trees,€if€developed,€would€be€producedÏunder€individual€standard€development€activities€after€moreÏinformation€about€each€category€is€gathered.€€Also,€the€EPA€doesÏnot€plan€to€establish€a€hotline€for€source€categoryÏdeterminations.€€However,€status€updates€on€standards€and€otherÏrulemakings€are€typically€presented€through€such€forums€as€theÏNational€Air€Pollution€Control€Techniques€Advisory€CommitteeÏ(NAPCTAC)€and€the€National€Air€Toxics€Inventory€ClearinghouseÏ(NATICH).€€In€addition,€a€Regulatory€Agenda€is€published€in€theÏò òFederal€Registeró ó€approximately€twice€per€year€which€providesÐ ü$°% Ðdescriptions€of€various€regulatory€projects€and€the€EPA€personnelÏto€contact€for€more€information.ÌÔ  ÔÌòòC.€€Comments€and€Responses€Related€to€the€Source€Category€ListÔ u‡ÔóóÐ X( ") ÐÌà  àSeveral€commenters€discussed€issues€related€toÏdeterminations€made€during€the€development€of€the€initial€sourceÏcategory€list€(57FR31576;€July€16,€1992).€€The€decisions€toÏlist€source€categories,€and€potential€revisions€to€the€sourceÏcategory€list,€are€not€being€addressed€under€today's€Ô_ÔscheduleÐ \-'/ Ðaction.€€As€stated€in€the€draft€schedule€for€standards€ò òFederalÐ L ÐRegisteró ó€publication€on€September€24,€1992€(57€FR€44147),Ð ,à Ðcomments€on€today's€action€were€solicited€regarding€scheduling€ofÏregulatory€deadlines€for€source€categories.€€A€public€commentÏperiod€was€provided€for€source€category€list€determinationsÏfollowing€the€publication€of€the€draft€list€of€source€categoriesÏon€June€21,€1991€(56€FR€28548).€€During€the€course€of€regulatoryÏdevelopment€for€the€various€source€categories,€the€EPA€will€studyÏindividual€source€categories€in€greater€detail.€€ListingÏdeterminations€and€potential€source€category€list€revisions€suchÏas€addition,€removal,€aggregation,€and€Ô_ÔsubcategorizationÔ_Ô€ofÏsource€categories€will€be€studied€during€this€process.€€TheÏpublic€comments€submitted€relating€to€the€listing€of€variousÏsource€categories€have€been€forwarded€to€the€appropriate€EPAÏproject€teams.€€If€the€EPA€determines€that€revisions€to€theÏsource€category€list€are€appropriate,€then€a€revised€sourceÏcategory€list€will€likely€be€published€in€the€FR€sometime€in€theÏfuture.€€The€public€comments€relating€to€source€category€listÏdeterminations€that€were€submitted€during€the€public€commentÏperiod€for€the€draft€schedule€for€standards,€and€the€EPA'sÏresponses,€are€summarized€in€a€background€information€documentÏentitled€"Schedule€for€Standards:€Summary€of€Public€Comments€andÏResponses"€(Docket€No.€A„91„14,€Item€No.€IV„A„3ò òó ó).Ð œP ÐÌòòD.€€Comments€and€Responses€Related€to€the€Ranking€MethodologyóóÐ Dø ÐÌ1.€€General€ÌÌà  àMany€Ô_ÔcommentersÔ_Ô€approved€of€the€EPA's€use€of€the€Ô_ÔSCRSÔ_Ô€inÏprioritizing€source€categories.€€One€Ô_ÔcommenterÔ_Ô€considered€theÏÔ_ÔSCRSÔ_Ô€approach€to€be€consistent€with€section€112(e)€criteria€forÏdetermining€the€schedule.€€Others€were€pleased€that€Ô_ÔSCRSÔ_Ô€scoresÏare€derived€by€combining€health€effects€scores€with€exposureÏscores€for€each€pollutant.€€However,€many€Ô_ÔcommentersÔ_Ô€alsoÏstressed€that€the€Ô_ÔSCRSÔ_Ô€has€limited€or€no€applicability€elsewhere.€ÏA€group€of€these€Ô_ÔcommentersÔ_Ô€agreed€with€the€EPA's€position€that€aÏhigher€Ô_ÔSCRSÔ_Ô€score€does€not€necessarily€mean€a€greater€risk€than€aÏlower€Ô_ÔSCRSÔ_Ô€score.€€One€Ô_ÔcommenterÔ_Ô€wanted€the€EPA€to€confirm€in€theÏò òFederal€Registeró ó€notice€supporting€the€final€schedule€that:€€(1)Ð è%œ& Ðthe€Ô_ÔSCRSÔ_Ô€was€used€only€for€this€preliminary€screening€and€is€notÏto€be€used€for€either€risk€assessment€or€any€other€regulatoryÏpurpose;€(2)more€accurate€and€realistic€information€shall€beÏused€in€developing€the€section€112€regulations€for€the€scheduledÏcategories;€and€(3)€the€Ô_ÔcommenterÔ_Ô€may€submit€additionalÏinformation€in€the€future€that€may€be€relevant€to€scheduleÏadjustments.Ìà  àOne€Ô_ÔcommenterÔ_Ô€asserted€that€the€Ô_ÔSCRSÔ_Ô€process€must€beÏvalidated€to€assure€that€the€ranking€it€produces€has€some€basisÐ h-'/ Ðto€justify€using€it€for€developing€the€schedule.€€The€Ô_ÔcommenterÔ_ÔÏsuggested€doing€an€in-depth€study€on€a€few€of€the€categories€toÏconfirm€the€results€from€the€Ô_ÔSCRSÔ_Ô€process,€noting€that€this€couldÏdemonstrate€whether€or€not€the€results€are€consistent€withÏresults€that€would€be€expected€from€a€more€complete€review.€€Ìà  àIn€response€to€these€comments,€the€EPA€emphasizes€that€theÏÔ_ÔSCRSÔ_Ô€addresses€two€of€the€section€112(e)(2)€criteria€(i.e.,Ïadverse€effects€of€the€HAP's€on€public€health;€and€the€quantityÏand€location€of€emissions€of€HAP's)€by€generating€a€relativeÏranking€score€for€each€source€category€based€on€emissionÏestimates,€toxicity€data,€and€to€a€lesser€degree,€the€location€ofÏemitting€facilities.€€However,€the€Ô_ÔSCRSÔ_Ô€does€not€estimateÏabsolute€or€relative€risk,€population€exposure,€or€impacts.Ìà  àSeveral€factors€were€considered€when€developing€the€scheduleÏfor€standards€including:€€the€Ô_ÔSCRSÔ_Ô€ranking€scores;€the€EPA'sÏcapability€to€meet€the€numerical€and€temporal€requirements€ofÏsection€112(e);€and€the€efficiency€of€grouping€categories€in€theÏsame€Ô_ÔtimeframeÔ_Ô.€€Admittedly,€the€Ô_ÔSCRSÔ_Ô€methodology€and€data€inputÏhave€limitations.€€However,€for€its€limited€use,€the€Ô_ÔSCRSÔ_Ô€and€itsÏpresent€results€are€adequate€for€assisting€with€the€developmentÏof€the€schedule€for€standards.€€It€was€the€only€tool€reasonablyÏavailable€that€could€address€the€criteria€of€section€112(e)(2)Ïfor€a€large€number€of€source€categories€in€the€short€timeÏavailable.€€The€EPA€does€not€plan€to€revise€and€rerun€the€Ô_ÔSCRSÔ_ÔÏwith€new€data.€€Currently,€the€EPA€does€not€intend€to€use€theÏÔ_ÔSCRSÔ_Ô€for€any€other€regulatory€purposes.€€The€EPA€realizes€theÏrestricted€utility€of€the€Ô_ÔSCRSÔ_Ô€and€encourages€the€public€andÏother€government€agencies€not€to€use€incorrectly,€orÏmisinterpret,€the€Ô_ÔSCRSÔ_Ô€results.Ìà  àThe€Ô_ÔSCRSÔ_Ô€methodology€includes€several€assumptions€andÏutilizes€simplified€algorithms.€€In€order€to€evaluate€thoroughlyÏthe€Ô_ÔSCRSÔ_Ô€ranking,€more€facility„specific€data€would€be€needed,Ïalong€with€other€data€such€as€EPA„verified€health€effectsÏbenchmarks.€€Currently,€this€information€is€not€available€forÏmany€of€the€categories€or€pollutants.€€The€EPA€considers€theÏcurrent€Ô_ÔSCRSÔ_Ô€results€to€be€adequate€for€assisting€with€theÏdevelopment€of€the€schedule€for€standards.ÌÔ  ÔÌ2.€€Exposure€ScoreÔ &¡ÔÌÌà  àOne€Ô_ÔcommenterÔ_Ô€was€concerned€with€the€use€of€average€countyÏpopulation€density€within€a€50„kilometer€(km)€radius€of€theÏfacility€for€the€long-term€aggregate€exposure€score€because€theÏresulting€score€may€underestimate€the€risk€to€individuals€thatÏlive€closer€to€the€facility.€€Another€Ô_ÔcommenterÔ_Ô€objected€to€theÏuse€of€average€population€density€because€this€method€givesÏunwarranted€priority€to€facilities€located€in€unpopulated€partsÏof€a€heavily€populated€county.€€One€Ô_ÔcommenterÔ_Ô€suggested€that€theÏEPA€incorporate€the€census-based€population€exposure€capabilitiesÐ  .À'0 ÐÔ_Ôof€the€Human€Exposure€Model€(HEM)€into€the€SCRS.€€The€commenterÏwas€concerned€that€several€assumptions€made€in€the€SCRS€mightÏunderestimate€the€impact€of€emissions€from€source€categories,Ïsuch€as€the€use€of:€€(1)nationwide€estimates;€(2)uniformÏpopulation€exposure;€and€(3)constant€average€dispersionÏparameters€for€all€pollutants€and€sources.Ìà  àFor€detailed€information€on€SCRS€methodology,€readers€areÏreferred€to€the€draft€schedule€ò òFederal€Registeró ó€notice€(57€FRÐ  Ì Ð44147;€September€24,€1992)€and€the€SCRS€Methodology€documentÏ(Docket€No.A„91„14,€Item€No.€IV„A„1).€€In€summary,€the€SCRSÏcalculated€four€separate€exposure€scores:€€the€long„termÏaggregate,€the€long„term€maximum,€short„term€aggregate,€and€theÏshort„term€maximum€exposure€scores.€€Emissions€estimates€were€theÏmost€sensitive€factors€in€the€calculation€of€each€of€the€fourÏsource€category€exposure€scores.€€Population€information,Ïalthough€limited,€was€factored€into€one€of€the€four€exposureÏscores,€the€long„term€aggregate.€€Since€the€SCRS€contains€manyÏassumptions,€and€uses€generic€algorithms€and€readily€availableÏdata€of€varying€quality,€the€exposure€scores€are€meant€asÏscreening€tools€and€are€not€to€be€considered€exposure€estimates.ÌIn€response€to€the€comment€on€use€of€a€50„km€radius,€the€long„¼term€aggregate€exposure€score€theoretically€represents€aÏpopulation„based€exposure€score€and€is€not€intended€to€representÏthe€maximally€exposed€individual.€€A€50„km€radius€wasÏincorporated€into€the€long€term€aggregate€exposure€scoreÏalgorithm€because€it€is€the€maximum€downwind€distance€to€whichÏmeteorological€dispersion€conditions€are€considered€to€beÏreliable€using€the€EPA's€dispersion€models.€€A€second€long„termÏscore,€the€long„term€maximum€exposure€score,€is€used€to€representÏa€theoretical€maximally€exposed€individual.€€In€this€algorithm,Ïit€is€assumed€that€the€highest€concentration€is€typicallyÏ200meters€(m)€downwind.€€However,€since€these€values€areÏconstants€incorporated€into€generic€algorithms€by€which€allÏsource€categories€are€scored,€and€since€the€SCRS€does€notÏestimate€exposure€or€risk,€it€is€arbitrary€what€radii€andÏdistances€are€used€in€the€SCRS€exposure€scores.€€If€otherÏconstant€values€for€radii€or€distance€were€to€be€used€(e.g.,Ï20km€and€100€m,€respectively)€in€the€generic€algorithms,€theÏSCRS€relative€ranking€results€would€change€very€little,€if€atÏall.Ìà  àExposure€modeling€using€detailed€census€data€(e.g.€such€asÏusing€the€HEM€model)€was€not€used€in€the€SCRS€because€the€EPA€didÏnot€have€adequate€facility„specific€data€for€many€of€the€sourceÏcategories.€€Also,€performing€exposure€modeling€for€allÏfacilities€in€each€of€the€listed€source€categories€could€requireÏan€enormous€level€of€effort€and€is€beyond€the€scope€of€workÏbelieved€to€be€necessary€to€support€the€schedule€for€standards.€ÏAverage€population€density,€and€other€assumptions€such€asÐ D-ø&/ Ðconstant€dispersion€parameters€for€all€pollutants,€areÏappropriate€for€the€SCRS€given€its€limited€use€and€dataÏavailability.ÌÌ3.€€Health€Effects€ScoreÌÌà  àOne€commenter€recommended€that€the€EPA€use€acute€healthÏeffects€endpoints€rather€than€the€lethal€dose€to€50€percent€ofÏthe€exposed€population€(LDÔ0 Ðì  Ô50ÔÐÿì   ÐÔ)€currently€used€in€the€SCRS.€€TheÏcommenter€was€also€concerned€about€the€combination€of€healthÏeffects€data€on€acute€lethality,€reproductive€effects,€and€otherÏnoncancer€effects€that€may€underestimate€public€health€impacts.€€Ìà  àIn€addition,€it€was€argued€by€a€commenter€that€theÏnationwide€emission€estimates€and€national€population€density€doÏnot€accurately€show€the€public€health€impact€from€exposure€toÏarea€source€emissions.€€The€commenter€also€recommendedÏincorporating€uncertainty€factors€and€environmental€effects€inÏthe€SCRS.€€Ìà  àAnother€commenter€expressed€concern€over€the€use€of€dataÏfrom€the€Registry€of€Toxic€Effects€of€Chemical€SubstancesÏ(RTECS),€since€it€is€not€a€peer„reviewed€journal,€and€recommendedÏusing€well-supported€toxicity€data€for€individual€chemicals,€ifÏavailable,€to€develop€the€health€effects€score.€€AnotherÏcommenter€mentioned€that€the€data€used€are€very€limited€andÏfrequently€out-of-date,€and€noted€that€the€RTECS€data€base€isÏ6years€old.€€The€commenter€cautioned€that€the€SCRS€mathematicalÏscoring,€on€several€levels,€crosses€such€a€diverse€stratum€ofÏhealth€effects€and€agents€that€any€scientific€relevance€isÏdistorted.€€The€commenter€also€protested€that€the€SCRS€approachÏdoes€not€address€whether€the€health€effects€only€occur€when€aÏthreshold€limit€is€exceeded.€€Ìà  àAnother€commenter€noted€that€the€SCRS€is€too€ill-defined€forÏthe€assignment€of€potential€health€effects€for€a€particularÏsource€category,€and€therefore,€contended€that€the€term€"sourceÏcategory€risk€score"€is€not€correctly€used.€€The€commenter€alsoÏclaimed€that€the€health€effects€score,€particularly€the€use€ofÏRTECS€data,€should€be€scientifically€based.€€The€commenterÏpointed€out€that€RTEC's€contains€a€number€of€inaccurate€values,Ïmissing€data,€and€misinterpretations€on€severity.€€€Ìà  àAs€part€of€the€response€to€the€above€comments,€the€followingÏsummary€of€the€health€effects€scoring€methodology€is€provided.€ÏThe€health€effects€score€for€each€pollutant€was€based€on€fourÏhealth€effects€endpoints€(i.e.,€cancer,€reproductive/Ìdevelopmental€effects,€acute€lethality,€and€"other€toxicity").€ÏThe€"other€toxicity"€endpoint€was€based€on€acute€or€chronicÏhealth€effects€data€other€than€cancer€(i.e.,€noncancer€effects),Ïthat€were€not€included€in€the€reproductive/developmental€or€acuteÏlethality€endpoints.€€The€LDÔ0h-'8-ì&Ô50ÔÐÿ8-ì&h-'Ô€and€lethal€concentration€to€50Ïpercent€of€exposed€population€(LCÔ0<.ð' .À'Ô50)ÔÐÿ .À'<.ð'Ô€were€used€to€calculate€theÐ  .À'0 Ðscore€for€acute€lethality.€€These€values€were€a€useful€measure€ofÏrelative€toxicity€since€the€data€were€readily€available€and€theÏendpoint€(i.e.,€50€percent€death)€is€consistent€acrossÏpollutants.€€Other€acute€benchmarks,€such€as€levels€of€concernÏ(LOC's)€and€doses€immediately€dangerous€to€life€and€healthÏ(IDLH's)€are€based€on€LDÔ0  Tp $Ô50ÔÐÿp $  TÔ€and€LCÔ0  Tp $Ô50ÔÐÿp $  TÔ€data,€and€therefore,€wouldÏhave€yielded€similar€relative€results.€€The€LDÔ0t (D øÔ50ÔÐÿD øt (Ô€and€LCÔ0t (D øÔ50ÔÐÿD øt (Ô€dataÏwere€useful€for€scoring€the€pollutants€in€one€of€the€four€healthÏeffects€endpoints.€€The€lowest€oral€dose€reported€to€cause€aÏhealth€effect€(TDòòLOóó),€or€lowest€concentration€when€the€substanceÐ À t  Ðis€in€air€(òòóóTCòòLOóó),€from€the€RTECS€data€base,€were€used€to€deriveÐ ”H  Ðthe€reproductive/€developmental€health€effects€score,€and€theÏ"other€toxicity"€score€for€most€pollutants€in€the€SCRS.Ìà  àThe€primary€source€of€information€for€noncancer€healthÏeffects€was€RTECS,€which€is€a€data€base€developed€and€maintainedÏby€the€National€Institute€of€Occupational€Safety€and€Health.€€TheÏRTECS€data€base€is€widely€used€by€both€industry€and€regulatoryÏagencies€as€a€source€of€toxicity€data.€€The€RTECS€represents€oneÏof€the€most€readily€available€and€comprehensive€sources€ofÏinformation€on€noncancer€toxicological€endpoints.€€When€theÏhealth€effects€data€were€being€compiled€for€the€SCRS,€the€mostÏcurrent€RTECS€data€were€used€(see€Docket€No.A-91-14,€Item€No.ÏII„A„1).€€It€would€have€been€desirable€to€obtain€peer„reviewed,Ïnoncancer€health€data,€and€verified€health€effects€benchmarksÏsuch€as€the€EPA's€inhalation€reference€concentrations€(RfC's).€ÏHowever,€RfC's€are€not€available€for€a€significant€number€of€theÏHAP's,€and€therefore,€RfC's€were€not€used€in€the€SCRS.€€SinceÏLDòò50óó's,€LCòò50óó's,€TDòòLOóó's€and€TCòòLOóó's€were€available€for€most€of€theÐ ¨\ ÐHAP's,€these€values€were€used€in€the€SCRS.€€Although€the€RTECSÏdata€base€itself€is€not€formally€peer€reviewed,€the€data€are€fromÏthe€scientific€literature.€€The€EPA€recognizes€the€limitationsÏassociated€with€the€lack€of€peer€review;€however,€for€compilingÏhealth€effects€information€for€the€189€HAP's€for€incorporatingÏinto€a€screening€tool€such€as€the€SCRS,€RTECS€was€a€valuableÏsource.Ìà  àThreshold€limits€were€not€considered€in€the€SCRS.€€For€manyÏpollutants,€data€are€inadequate€to€determine€threshold€limits,€ifÏthey€exist.€€More€importantly,€since€the€SCRS€does€not€estimateÏexposure€or€risk,€it€cannot€determine€if€a€threshold€effect€levelÏmight€be€exceeded.€€The€pollutants€were€scored€based€on€relativeÏpotency.€€The€SCRS€generates€a€relative€ranking€based€onÏemissions€and€toxicity€data,€but€does€not€attempt€to€determine€ifÏpublic€health€impacts€actually€exist.€€Therefore,€thresholdÏlevels€were€not€considered.Ìà  àThe€terminology€"source€category€risk€score"€was€used€inÏsome€earlier€docket€items.€€After€further€review,€the€EPAÏrecognized€that€this€terminology€could€be€misleading€since€theÏSCRS€does€not€estimate€risk.€€Therefore,€in€the€draft€scheduleÏnotice€(57€FR€44147;€September€24,€1992),€and€in€the€more€recentÐ  .À'0 Ðdocket€items,€including€the€"Methodology€for€the€Source€CategoryÏRanking€System"€(Docket€No.€A„91„14,€Item€No.€IV„A„1),€thisÏterminology€has€been€changed€to€"source€category€score."€€TheÏdraft€schedule€ò òFederal€Registeró ó€notice,€today's€notice,€and€theÐ È| Ðmethodology€document€clearly€indicate€that€the€SCRS€does€notÏestimate€risk.€€The€EPA€encourages€the€public€not€to€misinterpretÏthe€SCRS€results.ÌÌà  àAs€mentioned€above,€the€health€effects€score€was€derived€forÏfour€types€of€endpoints.€€This€approach€was€used€so€that€the€SCRSÏwould€cover€a€wide€range€of€health€concerns.€€There€are€otherÏpossible€methods€for€combining€various€toxicity€and€emissionsÏdata€to€rank€source€categories.€€However,€given€the€limitationsÏon€time€and€data€availability,€the€EPA€considers€the€methodologyÏused€in€the€SCRS€to€be€adequate€for€its€limited€purpose.Ìà  àIn€response€to€the€commenter€who€suggested€that€the€EPAÏincorporate€uncertainties€in€the€SCRS,€the€EPA€recognizes€thatÏuncertainty€factors€are€a€very€important€concern€when€conductingÏrisk€assessments,€and€that€defensible€risk€assessments€shouldÏcontain€uncertainty€analyses.€€For€estimating€risk€or€impacts,€itÏis€important€to€consider€both€quantitative€and€qualitativeÏuncertainty.€€However,€uncertainty€analyses€would€have€limitedÏutility€for€producing€a€relative€ranking.€€Since€the€SCRSÏgenerates€a€relative€ranking,€and€does€not€estimate€risk€orÏimpacts,€and€since€the€SCRS€was€only€a€tool€used€in€conjunctionÏwith€the€efficiency€of€grouping€and€other€considerations€inÏdeveloping€the€regulatory€schedule,€uncertainty€factors€were€notÏincorporated€into€the€SCRS.€€Needless€to€say,€outputs€from€theÏSCRS€are€highly€uncertain,€even€on€a€relative€basis.ÌÌ4.€€Environmental€EffectsÌÌà  àTwo€commenters€suggested€that€potential€adverse€effects€toÏthe€environment€also€be€considered€in€developing€the€schedule.€ÏSpecifically,€one€of€these€commenters€recommended€that€aquaticÏtoxicity,€bioaccumulation,€effects€on€terrestrial€wildlife,€andÏthe€effects€of€metals€on€plants€be€considered.€€This€commenterÏdid,€however,€recognize€that€the€availability€of€toxicity€dataÏfor€effects€on€the€environment€are€limited.€€Ìà  àSection€112(e)(2)€of€the€1990€Amendments€states,€"InÏdetermining€priorities€for€promulgating€standards€.€.€.€theÏAdministrator€shall€consider€.€.€.€adverse€effects€to€publicÏhealth€and€the€environment."€€In€response€to€these€comments€onÏenvironmental€effects,€and€after€further€EPA€review,€the€EPA€hasÏconducted€a€limited€technical€analysis€to€address€ecologicalÏconcerns.€€The€analysis€consists€of€two€relative€rankings€of€theÏsource€categories.€€One€ranking€is€based€on€emissions€estimates,Ïaquatic€toxicity,€and€bioconcentration.€€The€other€ranking€isÐ D-ø&/ Ðbased€on€the€same€three€parameters€plus€environmentalÏpartitioning.€€The€ecological€data€(i.e.,€aquatic€toxicity,Ïbioconcentration,€and€environmental€partitioning)€were€primarilyÏobtained€from€the€draft€"Focus€Chemicals€for€the€Clean€Air€ActÏAmendments€Great€Waters€Study"€report,€hereafter€called€theÏ"Focus€Chemicals"€report,€(Docket€No.€A„91„14,€Item€No.€IV„A„2).€ÏThe€emissions€estimates€were€gathered€from€the€SCRS€data€baseÏ(Docket€No.€A„91„14,€Item€No.II-B„5€and€II„B„8).€€The€resultingÏrelative€rankings€are€called€the€Aquatic€Toxicity€andÏBioconcentration€(ATB)€rankings€in€the€remainder€of€this€notice.€ÏEnvironmental€persistence€of€the€HAP's€was€not€incorporated€intoÏthe€ATB€rankings€because€of€the€limited€available€data.€ÏPersistence€data€(from€the€Focus€Chemicals€report)€were€availableÏfor€less€than€50€percent€of€the€HAP's.€€Although€the€persistenceÏdata€were€not€incorporated€into€the€ATB€rankings,€sourceÏcategories€were€identified€if€they€emit€HAP's€which€wereÏconsidered€persistent€in€the€Focus€Chemicals€report.€€Effects€onÏterrestrial€species€were€not€considered€because€of€theÏlimitations€in€readily€available€data,€and€the€limited€time€andÏresources€available€to€the€EPA€for€finalizing€the€schedule€forÏstandards€by€the€deadlines€imposed€by€the€1990€Amendments.€€TheÏATB€rankings€are€not€ecological€risk€assessments,€but€ratherÏrelative€rankings€based€on€some€readily€available€environmentalÏdata.€€A€thorough€discussion€of€methodology,€input€data,€andÏresults€are€contained€in€Docket€No.€A„91„14.€€Ìà  àAfter€analyzing€the€ATB€relative€rankings€along€with€theÏseparate€effort€to€identify€source€categories€that€emitÏpersistent€HAP's,€and€after€re„addressing€all€the€otherÏconsiderations€that€factored€into€the€development€of€the€scheduleÏ[such€as€the€section€112(e)(1)€requirements,€SCRS€results,Ïefficiency€of€grouping,€time€needed€to€develop€standards,€EPAÏresources,€and€ability€to€meet€the€numerical€and€temporalÏrequirements€of€section€112(e)],€some€changes€have€been€made€toÏthe€schedule€for€standards.€€These€changes€are€discussed€inÏsection€IV€"Changes€to€the€Draft€Schedule."€ÌÌÔ  ÔòòE.€€Comments€and€Responses€Concerning€Category€SpecificÐ $Ð$ ÐScheduling€Ô þÚÔóóÐ ü$°% ÐÌà  àTwo€commenters€affirmed€placement€of€their€particular€sourceÏcategories€on€the€schedule.€€One€of€the€commenters€reported,Ïhowever,€that€the€docket€for€the€draft€schedule€did€not€provideÏsufficient€information€regarding€the€ranking€of€individual€sourceÏcategories,€and€the€data€used€in€the€ranking.€€Ìà  àOne€commenter€asserted€that€the€oil€and€natural€gasÏproduction€category€should€not€be€regulated€in€the€7-yearÏtimeframe€because€a€methodological€flaw€in€the€SCRS€has€probablyÏoverstated€the€risk€from€this€category.€€The€commenter€arguedÐ P-'/ Ðthat€this€category€should€have€a€lower€priority€because€it€hasÏlow€emission€rates,€and€because€the€remote€location€of€mostÏoperations€results€in€lower€exposure€potential€than€predicted.€Ìà  àA€second€commenter€voiced€concern€about€the€division€ofÏpetroleum€refinery€operations€into€two€separate€source€categoriesÏon€the€initial€list,€and€the€different€timeframes€to€which€theyÏwere€assigned€within€the€draft€schedule.€€The€commenter€wasÏconcerned€that€there€might€be€insufficient€time€to€develop€MACTÏstandards€for€the€source€category€"petroleum€refineries€„€otherÏsources€not€distinctly€listed"€before€the€1994€deadline.€ÏAdditionally,€the€commenter€asserted€that€this€separation€wouldÏpreclude€emissions€trading€between€these€two€source€categories,Ïeven€when€collocated.€Ìà  àA€third€commenter€argued€that€the€pollutant€and€emissionsÏinformation€used€to€list€and€to€develop€the€SCRS€score€for€theÏiron€foundries€and€steel€foundries€source€categories€wasÏincorrect€and€ultimately€skewed€the€SCRS€ranks€upon€which€theÏregulatory€schedules€for€the€iron€foundries€and€steel€foundriesÏsource€categories€are€based.€€Another€commenter€asserted€that,Ïgiven€the€current€asbestos€NESHAP's€efficacy€and€the€reduction€inÏasbestos€use,€the€EPA€should€not€schedule€the€asbestos€processingÏsource€category€for€rulemaking€anytime€in€the€near€future.€€Also,Ïone€commenter€requested€a€60-day€extension€to€the€comment€period,Ïin€order€to€further€review€SCRS€ranking€information.à x àÐ X  Ðà  àFor€further€discussion€of€public€comments€and€responsesÏrelevant€to€the€scheduling€of€source€categories,€the€reader€isÏreferred€to€a€document€entitled€"Schedule€for€Standards:€SummaryÏof€Public€Comments€and€Responses"€(Docket€No.€A„91„14,€Item€No.ÏIV„A„3).€€In€response€to€the€above€comment€regarding€docketÏinformation,€the€docket€number€A„91„14€and€the€referenced€docketÏnumber€A„90„49,€contain€information,€including€emissionsÏestimates€and€health€effects€data,€incorporated€into€SCRS.€€InÏresponse€to€the€comments€relevant€to€the€listing€of€sourceÏcategories,€the€decisions€to€list€categories€and€to€subdivide€orÏaggregate€categories€such€as€petroleum€refinery€operations€areÏnot€a€part€of€today's€schedule€publication€action.€€As€discussedÏpreviously,€the€source€category€list€will€likely€be€revisedÏsometime€in€the€future.€€Ìà  àIn€response€to€the€specific€scheduling€comments,€theÏscheduling€decision€for€each€source€category€was€made€afterÏreviewing€all€the€considerations€previously€discussed€in€thisÏnotice.€€The€SCRS€was€considered€an€adequate€tool€to€assist€inÏthe€development€of€the€schedule.€€The€commenters€did€not€submitÏnew€data€on€emissions,€health€effects,€or€specific€facilityÏparameters.€€After€further€EPA€review,€evaluating€all€theÏconsiderations€and€criteria€previously€discussed€in€today'sÏnotice,€the€EPA€decided€to€move€the€iron€foundries€and€steelÏfoundries€source€categories€to€the€10„year€timeframe.€€However,Ïthe€EPA€does€not€have€sufficient€information€indicating€that€theÐ  .À'0 Ðother€suggested€changes€should€be€made.€€Therefore,€none€of€theseÏsuggested€changes€has€been€made,€except€for€the€movement€of€theÏiron€and€steel€foundries€categories€to€the€10„year€timeframe.Ìà  àAfter€further€review,€the€EPA€decided€not€to€extend€theÏcomment€period€as€requested€by€one€commenter.€€The€EPA€realizesÏthat€a€30„day€comment€period€challenges€the€public€to€review€andÏrespond€quickly€to€the€notice.€€However,€the€1990€AmendmentsÏimposed€an€extremely€ambitious€schedule,€and€to€lengthen€theÏcomment€period€may€have€resulted€in€additional€delays€beyondÏthose€which€this€project€has€already€encountered.€€The€EPA€has,Ïhowever,€contacted€the€commenter€directly€to€clarify€someÏconfusion€about€the€SCRS€ranking,€and€to€provide€assistance€inÏlocating€the€items€in€the€docket€related€to€that€particularÏsource€category.ÌÔ  ÔòòF.€€Comments€and€Responses€Related€to€FlexibilityÔ íÔóóÐ ä˜  ÐÌà  àMany€commenters€discussed€the€need€for€some€degree€ofÏflexibility€within€the€schedule,€and€said€that€the€EPA€shouldÏhave€the€flexibility€to€adjust€the€schedule€for€regulating€sourceÏcategories€after€the€schedule€for€standards€is€published.€€SomeÏcommenters€noted€that€the€present€rankings€should€be€subject€toÏchange€in€the€event€that€new€information€becomes€available€andÏprompts€the€EPA€to€recalculate€a€source€category€score€whichÏmight€alter€the€relative€rank€upon€which€its€scheduledÏpromulgation€date€is€based.€€Many€commenters€asserted€that€asÏdata€quality€and€availability€improves,€a€new€SCRS€analysisÏchanging€the€relative€ranking€may€prove€that€greater€riskÏreduction€may€be€achieved€in€a€shorter€timeframe€by€amending€theÏschedule.Ìà  àOne€commenter€stated€that€flexibility€was€needed€if€newÏsource€categories€are€added€to€the€source€category€list€andÏschedule.€€Another€commenter€stressed€the€importance€of€revisingÏthe€methodology€used€to€develop€the€SCRS€as€new€informationÏbecomes€available.€€The€commenter€suggested€that€the€EPA€shouldÏhave€the€authority€to€change€the€schedule€in€the€future,€ifÏnecessary,€after€periodic€review€and€updates€in€methodology.€ÏAnother€commenter€stated€that€the€EPA€needs€flexibility€in€orderÏto€allow€time€for€proper€attention€to€the€technical€details€ofÏwriting€the€emission€standards.€€Several€commenters€asserted€thatÏthe€EPA€must€be€able€to€modify€the€schedule€out€of€administrativeÏnecessity€in€order€to€better€meet€the€goals€of€the€statute.Ìà  àTwo€commenters€asserted€that€since€section112(c)€of€theÏ1990€Amendments€allows€the€EPA€to€amend€the€list€as€appropriate,Ïthe€EPA€should€also€have€the€flexibility€to€alter€regulatoryÏpromulgation€deadlines.€€One€of€these€commenters€proposed€thatÏsuch€revisions€are€appropriate€because€section112(b)€instructsÏthe€EPA€to€add€or€delete€HAP's€when€specific€conditions€areÏsatisfied,€and€that€the€1990€Amendments€allow€for€the€removal€ofÐ D-ø&/ Ðsource€categories€if€the€pollutants€they€emit€have€been€delisted,Ïor€if€the€projected€risk€from€those€pollutants€drops€below€aÏcertain€level.€€Ìà  àSix€commenters€alleged€that€section112(e)€contains€noÏprohibitions€against€the€EPA€changing€the€schedule.€€One€of€theÏcommenters€interpreted€the€absence€of€such€prohibition€to€meanÏthat€the€decision€has€been€left€to€the€EPA's€discretion.€€TheÏcommenter€argued€that€Congress€would€have€firmly€indicated€thatÏthe€EPA€would€not€have€the€authority€to€adjust€the€regulatoryÏschedule€if€Congress€had€so€intended.€€Finally,€the€commenterÏasserted€that€if€the€EPA€was€deprived€of€its€authority€to€adjustÏthe€schedule,€the€revision€authority€described€in€sections112(b)Ïand112(c)€would€lose€much€of€its€value.€€Others€added€that€sinceÏsection112(e)€is€not€considered€a€rulemaking€subject€to€judicialÏreview,€the€EPA€should€not€be€pressured€regarding€revisions€toÏthe€schedule€by€possible€lawsuits€or€the€requirements€of€theÏAdministrative€Procedure€Act,€5U.S.C7551€(1992).€€However,€oneÏcommenter€stated€that€the€schedule€should€not€be€altered€unless€aÏsignificant€change€in€the€ranking€of€source€categories€occursÏbased€on€the€changing€state€of€knowledge€supporting€the€threeÏcriteria€used€in€establishing€the€schedule.Ìà  àIn€response€to€the€above€comments€on€flexibility,€the€EPAÏinterprets€section€112€of€the€1990€Amendments€as€permitting€someÏflexibility€concerning€amendment€of€the€schedule.€€The€commentsÏreceived€regarding€this€issue€support€the€interpretation€that€theÏEPA€has€the€authority€to€amend€the€schedule,€and€to€retain€someÏregulatory€flexibility,€after€publication€of€today's€schedule.€ÏThe€EPA€considers€it€impractical€to€have€a€strictly€rigidÏschedule€for€the€reasons€discussed€in€section€I.B.€of€today'sÏnotice.€€To€reiterate€some€of€these€reasons,€as€new€data€becomeÏavailable,€the€EPA€may€identify€changes€to€the€schedule€thatÏwould€facilitate€greater€achievement€of€the€prioritizing€criteriaÏof€section€112(e).€€As€pointed€out€by€some€commenters,€there€mayÏbe€situations€where€significant€new€information€is€obtainedÏ(e.g.,€data€indicating€that€a€source€category€presents€much€lessÏof€a€hazard€to€public€health€than€previously€thought,€or€theÏdiscovery€that€a€source€category€is€posing€a€significant€threatÏto€the€environment)€that€warrants€limited€changes€to€theÏschedule.€€In€addition,€amendment€of€the€schedule€may€also€beÏnecessary€if€categories€on€the€initial€source€category€list€areÏdelisted€under€the€authority€of€section€112(c)(9).€€Hence,€theÏEPA€anticipates€that€it€may,€from€time€to€time,€amend€theÏschedule€for€standards€published€in€today's€notice.Ìà  àThe€EPA€does€not€anticipate€frequent€amendment€of€theÏschedule€for€standards€for€important€reasons.€€First,€because€ofÏthe€long€lead€time€and€significant€resources€required€toÏpromulgate€an€emissions€standard,€the€EPA€will€not€have€theÏtechnical€ability€or€resources€to€reschedule€many€standards,Ïparticularly€to€move€significant€numbers€of€source€categoriesÐ  .À'0 Ðinto€earlier€timeframes.€€Second,€because€of€the€section112(e)Ïnumerical€and€temporal€requirements€regarding€scheduling€ofÏstandards€(e.g.,€regulate€25€percent€of€all€listed€sourceÏcategories€by€November€15,€1994,€and€an€additional€25€percent€byÏNovember€15,€1997),€the€EPA€is€limited€in€its€ability€to€deferÏcategories€into€later€timeframes€without€moving€a€commensurateÏnumber€of€standards€to€earlier€timeframes.€€Ìà  àTherefore,€the€schedule€will€not€change€frequently,€butÏrather,€may€undergo€some€modifications€as€significant€newÏinformation€becomes€available.€€Of€course,€any€entirely€newlyÏlisted€categories€will€not€affect€the€schedule,€as€they€haveÏtheir€own€schedule€under€section€112(c)(5).€€Source€categoriesÏsubsequently€added€to€the€section€112(c)€list€shall€be€scheduledÏfor€regulation€by€November€2000,€or€2€years€after€they€areÏlisted,€whichever€is€later.€€Ô  ÔÌÌòòG.€€€Comments€and€ResponsesÔ Ô€Concerning€Efficiency€of€Grouping€óóÐ Œ@  ÐÌà  àA€few€commenters€cautioned€the€EPA€to€refrain€fromÏarbitrarily€grouping€source€categories€for€the€sole€purpose€ofÏmaking€the€regulatory€process€easier€and€more€convenient.€€TheyÏwere€concerned€that€arbitrary€groupings€could€lead€toÏimplementation€bottlenecks€and€could€complicate€the€residual€riskÏdeterminations€that€will€be€made€under€section112(f).€€TheÏcommenters€recommended€that,€if€the€EPA€determines€a€singleÏstandard€applies€to€more€than€one€source€category,€the€standardÏshould€be€promulgated€separately€for€each€source€category.€€Ìà  àOne€commenter€stressed€that€it€is€incorrect€to€hasten€theÏregulatory€schedule€for€categories€for€which€information€is€moreÏreadily€available€just€because€they€are€easier€to€regulate€in€aÏgiven€timeframe,€notwithstanding€the€impact€of€their€emissions€onÏpublic€health.Ìà  àAnother€commenter€noted€that€the€source€category€list€shouldÏbe€reviewed€for€inconsistencies.€€Specifically,€they€pointed€outÏthat€polyester€resins€production,€which€had€a€scheduledÏpromulgation€date€of€November15,€1997€on€the€draft€schedule,€andÏpolyethylene€terepthalate€production,€which€has€a€scheduleÏpromulgation€date€of€November15,€1994,€are€essentially€the€sameÏcategory€and,€therefore,€should€both€be€scheduled€under€theÏNovember15,€1997€timeframe.€€Ìà  àOne€commenter€reiterated€concerns€they€had€expressed€inÏtheir€comments€on€the€preliminary€draft€list€of€source€categoriesÏregarding€the€approach€the€EPA€used€to€identify€which€sourcesÏfell€under€which€categories€and€their€respective€schedules.€€TheÏcommenter€questioned€why€butyl€benzyl€phthalate,€a€phthalateÏplasticizer,€is€included€in€the€draft€list€of€SOCMI€processesÏ(scheduled€for€MACT€promulgation€by€November15,€1992).€€ThisÏwould€result€in€butyl€benzyl€phthlate€production€being€regulatedÐ D-ø&/ Ðbefore€the€phthalate€plasticizers€production€source€categoryÏlisted€under€miscellaneous€processes.€€The€commenter€questionedÏthe€logic€of€requiring€regulation€of€one€phthalate€plasticizerÏ8years€before€the€others.€€In€addition,€the€commenter€indicatedÏthat€the€EPA€had€not€specified€which€category€the€formaldehydeÏresins€group€would€fall€under,€stating€that€it€could€fit€underÏthe€acetal€resins€production,€the€amino€resins€production,€or€theÏphenolic€resins€production€categories.Ìà  àAnother€commenter€alleged€that€little€reliable€quantitativeÏdata€on€emissions€of€HAP's€from€iron€or€steel€foundries€wereÏpresented.€€They€stated€that€due€to€different€emissions,€process,Ïand€technology€characteristics,€iron€foundries€and€steelÏfoundries€should€not€be€assigned€the€same€regulatory€schedule€asÏother€sources€grouped€in€the€ferrous€metal€processing€industryÏgroup.€€The€commenter€requested€a€November15,€2000€scheduleÏassignment.Ìà  àIn€response€to€these€comments,€section€112(e)(2)(C)€allowsÏthe€EPA€to€prioritize€regulations€for€source€categories€based€onÏ"the€efficiency€of€grouping€categories...€according€to€theÏpollutants€emitted,€or€the€processes€or€technologies€used."€€ThisÏcriterion€enables€the€EPA€to€more€effectively€utilize€itsÏtechnical€resources€for€developing€regulations,€and€helps€preventÏthe€EPA€from€duplicating€regulatory€efforts€for€similarÏcategories.€€The€EPA€has€considered€in€the€past,€and€willÏconsider€in€the€future,€characteristics€such€as€end€products,Ïprocessing€steps,€raw€materials,€emitted€pollutants,€emissionÏcontrols,€economic€factors,€and€efficiency€of€using€EPA€resourcesÏin€grouping€source€categories€into€single€regulatory€projects.€ÏOf€course,€without€extensively€studying€each€source€category,€itÏis€often€difficult€for€the€EPA€to€predict€whether€a€particularÏemission€standard€will€closely€resemble€a€standard€for€anotherÏsource€category.€€The€EPA€understands€that€if€it€is€laterÏdiscovered€that€initially€grouped€categories€may€not€effectivelyÏbe€regulated€by€one€standard,€the€EPA€may€promulgate€separateÏstandards€for€the€source€categories€as€necessary.€€However,€toÏfollow€the€commenter's€suggestion€of€continuing€to€have€projectÏgroupings€for€similar€categories€but€then€to€promulgate€eachÏemission€standard€at€different€times€based€on€the€SCRS€rankingÏwould€defeat€the€purpose€of€the€efficiency€of€grouping€criteriaÏand€could€have€a€substantial€impact€on€the€EPA€meeting€otherÏgoals€of€section€112.Ìà  àThe€EPA€investigated€the€commenter's€allegation€that€theÏpolyester€resins€production€is€identical€to€polyethyleneÏterephthalate€production.€€This€review€revealed€that€theseÏcategories€are€in€fact€distinct€from€one€another,€and€shouldÏremain€as€separate€source€categories.€€In€particular,Ïpolyethylene€terephthalate€is€an€ethylene€glycol„based€polymerÏwhich€is€spun€into€fibers€for€clothing,€blow„molded€into€plasticÏbottles,€or€quenched€and€stretched€to€form€specialty€films.€Ð  .À'0 ÐPolyester€resins,€on€the€other€hand,€are€styrene„based€resinsÏthat€are€used€primarily€in€the€manufacture€of€fiberglass.€ÏBecause€of€these€differences,€there€is€no€technical€reason€toÏschedule€the€two€source€categories€in€the€same€timeframe.€€TheÏpolyester€resins€production€source€category€has€been€moved€to€theÏ10„year€timeframe.€€And,€the€polyethylene€terephthalateÏproduction€source€category€remains€scheduled€in€the€4„yearÏtimeframe.€€The€reader€is€referred€to€section€IV€of€today'sÏnotice€for€further€discussion€of€the€changes€to€the€draftÏschedule.Ìà  àIn€response€to€the€comments€regarding€the€formaldehydeÏresins€group,€this€is€merely€a€title€that€has€been€adopted€by€theÏEPA€to€refer€to€the€NESHAP€project€intended€to€regulate€theÏacetal,€amino,€and€phenolic€resins€production€source€categories.€ÏBy€researching€these€individual€categories,€the€EPA€discoveredÏthat€each€of€these€resin€producers€used€formaldehyde€as€aÏprincipal€reactant€in€the€polymerization€reaction.€€Consequently,Ïthe€EPA€decided€to€minimize€its€regulatory€resource€efforts€byÏgrouping€these€three€source€categories€into€one€project.€ÏAlthough€the€same€regulatory€project€focuses€on€all€threeÏcategories,€this€does€not€necessarily€suggest€that€the€emissionÏstandards€will€be€equivalent.€€However,€it€means€that€informationÏwill€be€gathered€simultaneously,€that€Agency€work€groupÏmembership€will€presumably€be€similar€(if€not€identical),€andÏthat€the€emission€standard(s)€will€most€likely€be€proposed€andÏpromulgated€on€the€same€schedules.Ìà  àIn€response€to€a€commenter's€concerns€regarding€butyl€benzylÏphthalate,€the€production€of€butyl€benzyl€phthalate€is€includedÏin€the€list€of€SOCMI€processes€which€are€proposed€for€regulationÏunder€the€HON€(57€FR€62608;€December€31,€1992).€€It€is€includedÏin€the€list€of€SOCMI€processes€because€butyl€benzyl€phthalateÏfits€the€definition€delineated€in€the€proposed€HON.€€The€otherÏphthalate€plasticizers€do€not€meet€the€HON€definition.€ÏTherefore,€the€other€phthalate€plasticizers€productions€areÏgrouped€into€a€separate€category€of€major€sources€and€were€rankedÏseparately€in€the€SCRS.€€They€ranked€relatively€low€in€the€SCRSÏand€were€scheduled€in€the€10„year€timeframe.€€The€list€of€SOCMIÏprocesses€is€not€an€item€for€review€under€this€action.€€However,Ïthe€comment€has€been€forwarded€to€the€EPA€staff€responsible€forÏthe€proposed€HON.€€Ìà  àRegarding€the€comment€on€the€iron€foundries€and€steelÏfoundries€source€categories,€these€categories€were€scheduledÏindependently€of€the€other€categories€within€the€ferrous€metalsÏprocessing€industry€group.€€However,€after€further€review€by€theÏEPA,€the€iron€foundries€and€steel€foundries€source€categoriesÏhave€been€moved€to€the€10„year€timeframe.€€In€consideration€ofÏregulatory€efficiency,€individual€source€categories€within€theÏâ âferrous€metals€industry€group€may€subsequently€be€grouped€withÐ 8-ì&/ Ðone€or€more€other€similar€categories€within€or€outside€of€theÏindustry€group.Ìâ âÌòòH.€€Comments€and€Responses€Related€to€Other€ConsiderationsóóÐ È| ÐÌà  àOne€commenter€urged€the€EPA€to€avoid€setting€schedule€datesÏfor€source€categories€that€are€clearly€unattainable.€€TheÏcommenter€mentioned€the€difficult€challenge€imposed€on€the€EPA€toÏmeet€the€statutory€deadlines,€and€stated€that€it€is€importantÏthat€section€112(d)€standards€be€of€the€highest€quality€possible.€ÏTherefore,€the€commenter€recommended€and€encouraged€the€EPA€toÏfocus€on€the€practical€considerations€of€setting€and€meeting€theÏsource€category€schedule.€€The€commenter€stated€that€the€EPAÏshould€consider€data€availability€and€resource€needs€whenÏdetermining€where€to€place€certain€source€categories€in€theÏschedule,€recognizing€that€writing€standards€for€certainÏcategories€will€be€extremely€resource„intensive€compared€to€otherÏcategories.€€ÌÌà  àIn€response,€the€EPA€agrees€with€the€above€recommendations.€ÏThe€EPA€considered€data€availability€and€resource€needs,€and€theÏability€to€meet€the€scheduled€deadlines,€when€developing€today'sÏschedule.€€Some€of€the€changes€made€to€the€draft€schedule€forÏstandards€were€partly€based€on€these€considerations.€€The€changesÏto€the€draft€schedule€are€discussed€in€the€following€section.€€€ÌÌÌò òIV.€€Changes€to€the€Draft€Scheduleó óÐ ´h ÐÌà  àThe€schedule€published€in€today's€notice€is€similar€to€theÏdraft€schedule€published€on€September€24,€1992€(57€FR€44147).€ÏHowever,€some€changes€have€been€made.€€After€reevaluating€theÏprioritizing€considerations€previously€discussed€in€this€notice,Ïand€considering€public€comments,€limitations€in€EPA€resources,Ïtime€needed€to€develop€standards,€section€112(e)(1)€requirements,Ïthe€ATB€rankings,€and€persistence€of€HAP's,€and€after€further€EPAÏreview,€the€EPA€decided€to€move€29€source€categories€from€the€7„¼year€to€the€10„year€timeframe,€and€to€move€nine€source€categoriesÏfrom€the€10„year€to€the€7„year€timeframe.€€€Ìà  àThe€draft€schedule€published€on€September€24,€1992€(57€FRÏ44147)€had€107€source€categories€(61€percent€of€the€initiallyÏlisted€source€categories)€scheduled€within€7€years€of€enactmentÏof€the€1990€Amendments.€€This€is€20€source€categories€(11Ïpercent)€more€than€the€87€source€categories€(50€percent)€requiredÏby€section€112(e)(1).€€Thus,€under€the€conditions€of€the€draftÏschedule,€the€EPA€could€have€met€the€statutory€requirement€ofÏregulating€50€percent€of€the€listed€source€categories€by€NovemberÏ15,€1997,€and€still€triggered€section€112(j)€requirements€if€theÐ P-'/ ÐEPA€failed€to€promulgate€emission€standards€on€time€for€all€107Ïsource€categories.€€After€further€review,€the€EPA€decided€toÏchange€the€schedule€so€that€there€are€87€source€categories€(50Ïpercent)€scheduled€within€7€years€of€enactment€of€the€1990ÏAmendments.€€This€percentage€change€more€closely€reflects€theÏrequirements€of€section€112(e)(1),€and€helps€avoid€triggeringÏ112(j)€requirements€for€the€extra€categories.Ìà  àNine€source€categories€from€the€agricultural€chemicalsÏindustry€group€were€moved€from€the€10„€to€the€7„year€timeframe.€ÏFor€a€listing€of€these€nine€source€categories€included€in€theÏagricultural€chemicals€industry€group€that€were€moved€to€the€7„¼year€timeframe,€the€readers€are€referred€to€table€1€of€today'sÏnotice.€€This€change€was€made€after€reevaluating€all€theÏprioritizing€considerations€previously€discussed€in€today'sÏnotice,€but€especially€after€considering€the€efficiency€ofÏgrouping€criterion,€data€availability,€and€the€time€and€resourcesÏneeded€to€promulgate€emission€standards€for€the€174€sourceÏcategories€included€in€today's€schedule.€€The€EPA€has€attemptedÏto€optimize€the€resources€available€for€developing€emissionÏstandards.€€By€grouping€these€source€categories€together€underÏone€regulatory€project,€and€moving€them€to€the€7„year€timeframe,Ïthe€EPA€believes€that€resources€are€being€used€more€efficientlyÏfor€meeting€the€requirements€of€section€112(e).€€The€EPA€believesÏthat€this€scheduling€change€should€facilitate€meeting€theÏnumerical€and€temporal€requirements€of€section€112(e),€and€also,Ïfacilitate€a€greater€achievement€of€the€prioritizing€criteria€ofÏsection€112(e)(2).€€In€addition,€five€of€these€nine€sourceÏcategories€emit€HAP's€that€were€considered€ecologicallyÏpersistent€in€the€draft€Focus€Chemicals€report.€ÌÌà  àAfter€reevaluating€all€the€criteria€and€considerations€forÏprioritizing€that€were€previously€discussed€in€today's€notice,Ïthe€EPA€moved€the€following€29€source€categories€from€the€7„€toÏthe€10„year€timeframe:€€(1)€Stationary€Turbines;€(2)€PolyvinylÏAlcohol€Production;€(3)€Benzyl„Trimethyl„Ammonium€ChlorideÏProduction;€(4)€Carboxy„Methyl„Cellulose€Production;€(5)ÏPolyvinyl€Acetate€Emulsions€Production;€(6)€Polyvinyl€ButyralÏProduction;€(7)€Stationary€Internal€Combustion€Engines;€(8)ÏPhotographic€Chemicals€Production;€(9)€Paper€and€Other€WebsÏ(Surface€Coating);€(10)€Polymethyl€Methacrylate€ResinsÏProduction;€(11)€Sewage€Sludge€Incineration;€(12)€SemiconductorsÏManufacturing;€(13)€Aerosal€Can€Filling;€(14)€CellophaneÏProduction;€(15)€Rayon€Production;€(16)€Chromium€RefactoriesÏProduction;€(17)€Hydrochloric€Acid€Production;€(18)€HydrogenÏFluoride€Production;€(19)€Polyester€Resins€Production;€(20)ÏHydrazine€Production;€(21)€Chelating€Agents€Production;€(22)ÏRubber€Chemicals€Manufacturing;€(23)€Iron€Foundries;€(24)€SteelÏFoundries;€(25)€Auto€and€Light€Duty€Truck€(surface€coating);€(26)ÏMunicipal€Landfills;€(27)€Integrated€Iron€and€Steel;€(28)Ð  .À'0 ÐPhosphoric€Acid€Manufacturing;€and€(29)€Phosphate€FertilizersÏProduction.ÌÌò òV.€€Schedule€for€the€Promulgation€of€Emission€Standardsó óÐ È| ÐÌà  àThe€schedule,€in€tables€1€and€2€of€today's€notice,Ïestablishes€timeframes€for€the€promulgation€of€emission€standardsÏfor€the€categories€of€sources€initially€listed€pursuant€toÏsection112(c).€€The€listed€categories€are€prioritizedÏconsidering€the€three€criteria€identified€in€section112(e)(2)Ïand€the€other€considerations€discussed€in€today's€notice.€ÏToday's€schedule€specifies€that€each€of€the€initially€listedÏsource€categories€are€scheduled€to€be€€regulated€within€2,€4,€7,Ïor€10€years€of€the€enactment€of€the€1990€Amendments,€as€requiredÏby€section€112(e).€€Ìà  àThe€schedule€for€the€first€two€years€(i.e.,€requiringÏpromulgation€of€standards€by€November€15,€1992)€includes€fiveÏcategories€of€dry€cleaners€and€the€SOCMI€source€category.€€TheÏSOCMI€category,€along€with€equipment€leaks€from€20€other€non„¼SOCMI€source€categories€or€subsets€of€source€categories€would€beÏsubject€to€the€proposed€HON€(57€FR€62608;€December€31,€1992).€€AÏsubset€of€a€source€category,€as€used€in€today's€notice,€isÏdefined€as€a€particular€process€or€emission€point€that€is€part€ofÏthe€more€broadly€defined€source€category.€€The€proposed€HONÏincludes€a€negotiated€standard€for€equipment€leaks€in€the€SOCMIÏand€20€non„SOCMI€source€categories€or€subsets€of€sourceÏcategories€(see€table€1,€footnote€c).€€These€non„SOCMI€sourceÏcategories,€or€subsets€of€source€categories,€are€consistent€withÏthe€seven€manufacturing€processes€listed€in€the€notice€ofÏagreement€on€negotiated€regulation€for€equipment€leaks€(56€FRÏ9318;€March€6,€1991).€€The€negotiated€standard€was€proposed€asÏpart€of€the€HON.€€Only€the€equipment€leak€emissions€in€these€non„¼SOCMI€source€categories€or€subsets€of€source€categories€areÏscheduled€for€regulation€by€November€15,€1992.€€RegulationsÏcovering€other€emission€sources€in€these€non„SOCMI€sourceÏcategories€are€scheduled€for€later€years€because€of€insufficientÏtime€and€information.€€Although€the€remainder€of€the€sourceÏcategories€will€be€regulated€in€a€later€timeframe,€sources€willÏneed€to€comply€with€the€equipment€leaks€requirements€in€the€HON,Ïaccording€to€the€deadlines€specified€in€the€HON.€€Ìà  àTo€fulfill€the€section€112(e)(1)(C)€requirement€to€regulateÏ25€percent€of€listed€categories€within€4€years€of€enactment€ofÏthe€1990€Amendments,€45€source€categories€(26€percent€of€theÏinitially€listed€source€categories)€are€scheduled€for€regulationÏin€the€2„€and€4„year€timeframes.€€This€group€includes€severalÏactive€projects€previously€identified€as€high€priority€throughÏearlier€prioritization€efforts;€categories€already€underÏinvestigation€as€part€of€active€CTG€projects;€and€others€selectedÐ D-ø&/ Ðbecause€of€efficiency€of€grouping,€level€of€knowledge,€andÏpotential€for€completion€by€November€15,€1994.Ìà  àThe€remaining€129€source€categories€are€scheduled€forÏregulation€within€either€7€or€10€years€of€enactment.€€The€SCRSÏranking,€along€with€efficiency€of€grouping€and€the€otherÏconsiderations€discussed€previously€in€today's€notice,€were€theÏprimary€criteria€for€scheduling€the€remaining€categories€inÏeither€7„€or€10„years.€€To€fulfill€the€section€112(e)(1)(D)Ïrequirement€to€promulgate€emissions€standards€for€an€additionalÏ25€percent€of€the€initially€listed€source€categories€by€NovemberÏ15,€1997,€a€total€of€87€source€categories€(50€percent)€areÏscheduled€for€regulation€within€7€years€of€enactment€of€the€1990ÏAmendments.Ìà  àAs€required€in€section€112(c)(5),€source€categories€that€areÏadded€to€the€source€category€list€after€publication€of€theÏinitial€source€category€list€(57€FR€31576;€July€16,€1992)€shallÏbe€regulated€by€November€15,€2000,€or€within€2€years€after€theÏlisting€date,€which€ever€is€later.ÌÌò òVI.€€Administrative€Requirementsó óÐ ¼ ÐÌòòA.€€DocketóóÐ ¼p ÐÌà  àThe€docket€for€this€action€is€No.A-91-14.€€The€docket€is€anÏorganized€and€complete€file€of€all€the€information€submitted€toÏor€otherwise€considered€by€the€EPA€in€the€development€of€thisÏschedule.€€The€principal€purpose€of€the€docket€is€to€allowÏinterested€parties€a€means€to€access€documents€relevant€toÏdeveloping€the€schedule.€€The€docket€is€available€for€publicÏinspection€at€the€EPA's€Air€Docket€Section,€listed€in€theÏADDRESSES€section€of€this€notice.ÌÌòòB.€€Regulatory€Requirements€óóÐ ä ˜  ÐÌ1.€€GeneralÌÌà  àBecause€today's€schedule€notice€is€not€a€rule,€the€EPA€hasÏnot€prepared€an€assessment€of€the€potential€costs€and€benefitsÏpursuant€to€Executive€Order€12866,€nor€an€economic€impactÏanalysis€pursuant€to€section€317,€nor€a€regulatory€flexibilityÏanalysis€pursuant€to€Regulatory€Flexibility€Act€(Public€Law€96„¼354,€September€19,€1980).€€Also,€this€notice€is€not€subject€toÏthe€Paperwork€Reduction€Act€of€1990,Ì44€U.S.C.€3501€et.€seq.€€ÌÌ2.€€Executive€Order€and€Office€of€Management€and€Budget€Review€Ìâ âÐ ˆ,<&. Ðà  àUnder€Executive€Order€12866€(58€FR€51735,€10/04/93),€theÏâ âAgency€must€determine€whether€a€regulatory€action€isÏ"significant"€and€therefore€subject€to€OMB€review€and€theÏrequirements€of€the€Executive€Order.€€The€Order€definesÏ"significant"€regulatory€action€as€one€that€is€likely€to€lead€toÏa€rule€that€may:€(1)€have€an€annual€effect€on€the€economy€of€$100Ïmillion€or€more,€or€adversely€and€materially€affecting€a€sectorÏof€the€economy,€productivity,€competition,€jobs,€the€environment,Ïpublic€health€or€safety,€or€State,€local€or€tribal€governments€orÏcommunities;€(2)€create€a€serious€inconsistency€or€otherwiseÏinterfere€with€an€action€taken€or€planned€by€another€agency;€(3)Ïmaterially€alter€the€budgetary€impact€of€entitlements,€grants,Ïuser€fees,€or€loan€programs€or€the€rights€and€obligation€ofÏrecipients€thereof;€(4)€raise€novel€legal€or€policy€issuesÏarising€out€of€legal€mandates,€the€President's€priorities,€or€theÏprinciples€set€forth€in€the€Executive€Order.Ìà  àPursuant€to€the€terms€of€Executive€Order€12866,€the€OfficeÏof€Management€and€Budget€(OMB)€has€notified€the€EPA€that€thisÏschedule€notice€is€a€"significant"€regulatory€action€within€theÏmeaning€of€the€Executive€Order.€€For€this€reason,€this€scheduleÏaction€was€submitted€to€the€OMB€for€review.€€Changes€made€inÏresponse€to€OMB€suggestions€or€recommendations€will€be€documentedÏin€the€public€record.ÌÌò òVII.€€Organization€of€the€Schedule€for€Standardsó óÐ ,à ÐÌà  àThe€Schedule€for€Standards€is€presented€in€tabular€form.€€InÏtable€1,€the€schedule€is€organized€by€industry€group.€€WithinÏeach€industry€group€are€related€categories€of€sources€and€theÏscheduled€deadline€for€promulgation€of€emissions€standards.€€TheÏsource€categories€are€scheduled€for€regulation€within€2,€4,€7,€orÏ10€years€of€enactment€of€the€1990€Amendments.€€However,€asÏindicated€in€the€footnotes€of€table€1,€some€source€categories€areÏsubject€to€court„ordered€deadlines€in€accordance€with€a€consentÏdecree€entered€in€òòSierra€Clubóó€v.€òòBrowneróó,€Case€Number€93„0124Ð €"4" Ð(and€related€cases)€(DC€District€Court).€€It€should€be€noted€thatÏthe€section€112(j)€requirements,€which€are€discussed€in€sectionÏI.B.€of€today's€notice,€take€effect€18€months€after€the€statutoryÏdeadlines€(i.e.,€November€15,€1992,€November€15,€1994,€NovemberÏ15,€1997,€and€November€15,€2000).€€The€court„ordered€deadlines€doÏnot€affect€the€section€112(j)€provisions.€€In€table€1,€categoriesÏof€area€sources€have€been€listed€separately.€€In€table€2,€theÏschedule€is€organized€by€the€four€timeframes€(i.e.,€the€2,€4,€7Ïand€10€year€groups).ÌÌòòóóà  àDated:€November€15,€1993.Ð ¨+\%- ÐÌò òMichael€Ô_ÔShapiro,ó óÐ P-'/ ÐòòAssistant€Administrator.óóÐ À ÐÌ[FR€Doc.€93„29513€Filed€12„2„93;€8:45€am]ÌÌò òBilling€Code€€6560„50„Pó óññÐ \ ÐÌÔ_ÔññññÔ_ÔÑ$°ÑÑ$°Ñò òFederal€Registeró ó€/€December€3,€1993€/€Noticesà€hhC(#àò ò63952„54ó óˆÐ Ð  Ðð2ðððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððððð0ðÐ ° ð Ðò òÓ  ÓTABLE€1.€€CATEGORIES€OF€SOURCES€OF€HAZARDOUS€AIR€POLLUTANTS€Ð „ Ä ÐAND€REGULATION€PROMULGATION€SCHEDULE€BY€INDUSTRY€GROUPÌó óÌÓ  ÓòòINDUSTRY€GROUPóóÐ X  Ѐ€Source€CategoryÔÐÿ¼ü ì, Ô€aÔ0ì, ¼ü Ôà0  àà0h(#(#àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#à€€Schedule€DateÐì, È(#È(# ÐòòÌFUEL€COMBUSTIONóóÐ ”Ô  Ѐ€Engine€Test€Facilitiesà0 h àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#à11/15/00Ðh¨  (# (# Ѐ€Industrial€BoilersÔÐÿ L <| Ô€bÔ0<| L Ôà0 h àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00Ð<| x(#x(# Ѐ€Institutional/Commercial€BoilersÔÐÿà PÔ€bÔ0Pà Ôà0 p àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00ÐPx(#x(# Ѐ€Process€Heatersà0  àà0h(#(#àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà È àà0 p(#p(#àà0x (# (#à11/15/00Ðä$x(#x(# Ѐ€Stationary€Internal€Combustion€Engines€ÔÐÿˆÈ¸øÔbÔ0¸øˆÈÔà0 È àà0 È(#È(#àà0x (# (#à11/15/00иøx(#x(# Ѐ€Stationary€TurbinesÔÐÿ\œŒÌÔ€bÔ0ŒÌ\œÔà0 h àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà  àà0xÈ(#È(#à11/15/00ÐŒÌx(#x(# ÐòòÌNON„FERROUS€METALS€PROCESSINGóóÐ 4t Ѐ€Primary€Aluminum€Productionà0 À àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#à11/15/97ÐH (# (# Ѐ€Secondary€Aluminum€Productionà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/97ÐÜx(#x(# Ѐ€Primary€Copper€Smeltingà0 À àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/97аðx(#x(# Ѐ€Primary€Lead€Smeltingà0 h àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà x à11/15/97Ð„Ä (# (# Ѐ€Secondary€Lead€SmeltingÔÐÿ(hX˜Ô€jÔ0X˜(hÔà0 À àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/94ÐX˜x(#x(# Ѐ€Lead€Acid€Battery€Manufacturingà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#à11/15/00Ð,l (# (# Ѐ€Primary€Magnesium€Refiningà0 À àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00Ð@x(#x(# ÐòòÌFERROUS€METALS€PROCESSINGóóÐ ¨è Ѐ€Coke€By„Product€Plantsà0 h àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#à11/15/00Ð|¼  (# (# Ѐ€Coke€Ovens:€€Charging,€Top€Side,€and€Door€Leaksà0  à12/31/92ÐP ! (# (# Ѐ€Coke€Ovens:€€Pushing,€Quenching,€and€Battery€Ì€€€€Stacksà ¸ àà  àà h ààQÀÀ(Ààˆà  àà p àà È àà  àà x à11/15/00Ð ø!8# Ѐ€Ferroalloys€Productionà0 h àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#à11/15/97ÐÌ" $ (# (# Ѐ€Integrated€Iron€and€Steel€Manufacturingà0 È àà0 È(#È(#àà0x (# (#à11/15/00Р#à%x(#x(# Ѐ€Non„Stainless€Steel€Manufacturing€„€Electric€ArcÌ€€€€Furnace€(EAF)€Operationà0 À àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/97ÐH%ˆ 'x(#x(# І€€Stainless€Steel€Manufacturing€„€Electric€Arc€Ì€€€€Furnace€(EAF)€Operationà0 À àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/97Ðð&0")x(#x(# Ѐ€Iron€Foundriesà0  àà0h(#(#àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00ÐÄ'#*x(#x(# Ѐ€Steel€Foundriesà0  àà0h(#(#àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà x à11/15/00И(Ø#+ (# (# Ѐ€Steel€Pickling€„€HCl€Processà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/97Ðl)¬$,x(#x(# ÐÌòòMINERAL€PRODUCTS€PROCESSINGóóÐ +T&. Ѐ€Alumina€Processingà0 h àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00Ðè+('/x(#x(# Ѐ€Asphalt€Concrete€Manufacturingà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00м,ü'0x(#x(# Ѐ€Asphalt€Processingà0 h àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00Ð-Ð(1x(#x(# Ѐ€Asphalt€Roofing€Manufacturingà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00Ðd.¤)2x(#x(# Ѐ€Asphalt/Coal€Tar€Application€„€Metal€Pipesà0 È àà0 È(#È(#àÔ_Ô11/15/00Ð8/x*3 (# (# Ѐ€Chromium€Refractories€Productionà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#à11/15/00ÐÀ (# (# Ѐ€Clay€Products€Manufacturingà0 À àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#à11/15/00Ð”Ô (# (# Ѐ€Lime€Manufacturingà0 h àà0Àh(#h(#àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00Ðh¨x(#x(# Ѐ€Mineral€Wool€Productionà0 À àà0À(#À(#àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/97Ð<|x(#x(# Ѐ€Portland€Cement€Manufacturingà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/97ÐPx(#x(# Ѐ€Taconite€Iron€Ore€Processingà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/00Ðä$x(#x(# Ѐ€Wool€Fiberglass€Manufacturingà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/97и øx(#x(# ÐòòÌÐ  `   ÐÔ_ÔPETROLEUM€AND€NATURAL€GAS€PRODUCTION€AND€REFININGóóÐ À Ѐ€Oil€and€Natural€Gas€Productionà0  àà0p(#(#àà0Èp(#p(#àà0 È(#È(#àà0x (# (#à11/15/97ДÔx(#x(# Ѐ€Petroleum€Refineries€„€Catalytic€Cracking€Ì€€€€(Fluid€and€other)€Units,€Catalytic€ReformingÌ€€€€Units,€and€Sulfur€Plant€Unitsà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97ÐD œ(#œ(# Ѐ€Petroleum€Refineries€„€Other€Sources€Not€Ì€€€€Distinctly€ListedÔÐÿ¤€Ô°Ô€kÔ0Ô°¤€Ôà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà  àà0XÐ(#Ð(#àà0œX(#X(#à11/15/94ÐÔ°œ(#œ(# ÐòòÌLIQUIDS€DISTRIBUTIONóóÐ d @ Ѐ€Gasoline€Distribution€(Stage€1)ÔÐÿü Ø, Ô€gÔ0, ü ØÔà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94Ð,  œ(#œ(# Ѐ€Organic€Liquids€Distribution€(Non„Gasoline)à0 X àà0œX(#X(#à11/15/00Ðô Ð œ(#œ(# ÐòòÌSURFACE€COATING€PROCESSESóóÐ „ `  Ѐ€Aerospace€IndustriesÔÐÿ ø L ( Ô€lÔ0L (  ø Ô€à0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94ÐL ( œ(#œ(# Ѐ€Auto€and€Light€Duty€Truck€(Surface€Coating)à0 X àà œ à11/15/00Ðð X(#X(# Ѐ€Flat€Wood€Paneling€(Surface€Coating)à0  àà0X(#(#àà0œX(#X(#à11/15/00Ðܸ œ(#œ(# Ѐ€Large€Appliance€(Surface€Coating)à0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ф€ œ(#œ(# Ѐ€Magnetic€Tapes€(Surface€Coating)ÔÐÿ< lH Ô€gÔ0lH < Ôà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94ÐlH œ(#œ(# Ѐ€Manufacture€of€Paints,€Coatings,€and€Adhesivesà0 œ à11/15/00Ð4œ(#œ(# Ѐ€Metal€Can€(Surface€Coating)à0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐüØœ(#œ(# Ѐ€Metal€Coil€(Surface€Coating)à0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐÄ œ(#œ(# Ѐ€Metal€Furniture€(Surface€Coating)à0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐŒhœ(#œ(# Ѐ€Miscellaneous€Metal€Parts€and€Products€Ì€€€€(Surface€Coating)à0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ðøœ(#œ(# Ѐ€Paper€and€Other€Webs€(Surface€Coating)à0  àà0X(#(#àà0œX(#X(#à11/15/00ÐäÀœ(#œ(# Ѐ€Plastic€Parts€and€Products€(Surface€Coating)à0 X àà0œX(#X(#à11/15/00Ьˆœ(#œ(# Ѐ€Printing,€Coating,€and€Dyeing€of€Fabricsà0  àà0X(#(#àà0œX(#X(#à11/15/00ÐtPœ(#œ(# Ѐ€Printing/Publishing€(Surface€Coating)à0  àà0X(#(#àà0œX(#X(#à11/15/94Ð<œ(#œ(# Ѐ€Shipbuilding€and€Ship€Repair€(Surface€Coating)à0 œ à11/15/94Ðàœ(#œ(# Ѐ€Wood€Furniture€(Surface€Coating)ÔÐÿœx̨ÔÔ0̨œxÔà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94Ð̨œ(#œ(# ÐòòÌWASTE€TREATMENT€AND€DISPOSALóóÐ \8 Ѐ€Hazardous€Waste€Incinerationà0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ð$ œ(#œ(# Ѐ€Municipal€Landfillsà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐìÈ!œ(#œ(# Ѐ€Publicly€Owned€Treatment€Works€(POTW)€Emissionsà0 œ à11/15/95д"œ(#œ(# Ѐ€Sewage€Sludge€Incinerationà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ð|X#œ(#œ(# Ѐ€Site€Remediationà0 À àà0À (#À (#àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà X àà0œ(#(#à11/15/00ÐD $œ(#œ(# Ѐ€Solid€Waste€Treatment,€Storage€and€Disposal€Ì€€€€Facilities€(TSDF)à0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94ÐÔ °&œ(#œ(# ÐòòÌAGRICULTURAL€CHEMICALS€PRODUCTIONóóÐ d"@( Ѐ€4„Chloro„2„Methylphenoxyacetic€Acid€Productionà0 œ à11/15/97Ð,# )œ(#œ(# Ѐ€2,4„D€Salts€and€Esters€Productionà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97Ðô#Ð *œ(#œ(# Ѐ€4,6„Dinitro„o„Cresol€Productionà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97м$˜!+œ(#œ(# Ѐ€Captafol€ProductionÔÐÿT%0"„%`"Ô€cÔ0„%`"T%0"Ôà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà X àà0œ(#(#à11/15/97Є%`",œ(#œ(# Ѐ€Captan€ProductionÔÐÿ&ø"L&(#Ô€cÔ0L&(#&ø"Ôà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97ÐL&(#-œ(#œ(# Ѐ€Chloroneb€Productionà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97Ð'ð#.œ(#œ(# Ѐ€Chlorothalonil€ProductionÔÐÿ¬'ˆ$Ü'¸$Ô€cÔ0Ü'¸$¬'ˆ$Ôà0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97ÐÜ'¸$/œ(#œ(# Ѐ€Dacthal€(tm)€ProductionÔÐÿt(P%¤(€%Ô€cÔ0¤(€%t(P%Ôà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97Ф(€%0œ(#œ(# Ѐ€Sodium€Pentachlorophenate€Productionà0  àà0X(#(#àà0œX(#X(#à11/15/97Ðl)H&1œ(#œ(# Ѐ€Tordon€(tm)€Acid€ProductionÔÐÿ*à&4*'Ô€cÔ04*'*à&Ôà0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97Ð4*'2œ(#œ(# ÐòòÌÌÐ  Œ,h)5 ÐFIBERS€PRODUCTION€PROCESSESóóÐ $ Ѐ€Acrylic€Fibers/Modacrylic€Fibers€ProductionÔÐÿ¼˜ìÈÔÔ0ìȼ˜Ôà0 X àà œ à11/15/97ÐìÈX(#X(# Ѐ€Rayon€Productionà0 À àà0À (#À (#àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà X àà0œ(#(#à11/15/00дœ(#œ(# Ѐ€Spandex€Productionà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ð|Xœ(#œ(# ÐòòÌFOOD€AND€AGRICULTURE€PROCESSESóóÐ  è Ѐ€Baker's€Yeast€Manufacturingà0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐÔ°œ(#œ(# Ѐ€Cellulose€Food€Casing€Manufacturingà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Мxœ(#œ(# Ѐ€Vegetable€Oil€Productionà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ðd @œ(#œ(# ÐòòÌPHARMACEUTICAL€PRODUCTION€PROCESSESóóÐ ô Ð  Ѐ€Pharmaceuticals€ProductionÔÐÿŒ h¼ ˜Ô€cÔ0¼ ˜Œ hÔà0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97м ˜ œ(#œ(# ÐòòÌPOLYMERS€AND€RESINS€PRODUCTIONóóÐ L (  Ѐ€Acetal€Resins€Productionà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97Ðð œ(#œ(# Ѐ€Acrylonitrile„Butadiene„Styrene€Productionà0 X àà0œX(#X(#à11/15/94Ðܸ œ(#œ(# Ѐ€Alkyd€Resins€Productionà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ф€ œ(#œ(# Ѐ€Amino€Resins€Productionà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97ÐlH œ(#œ(# Ѐ€Boat€Manufacturingà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ð4œ(#œ(# Ѐ€Butadiene„Furfural€Cotrimer€(R„11)ÔÐÿ̨üØÔ€cÔ0üØÌ¨Ôà0  àà0X(#(#àà0œX(#X(#à11/15/00ÐüØœ(#œ(# Ѐ€Butyl€Rubber€Productionà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94ÐÄ œ(#œ(# Ѐ€Carboxymethylcellulose€Productionà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐŒhœ(#œ(# Ѐ€Cellophane€Productionà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà œ à11/15/00ÐT0X(#X(# Ѐ€Cellulose€Ethers€Productionà0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ðøœ(#œ(# Ѐ€Epichlorohydrin€Elastomers€Productionà0  àà0X(#(#àà0œX(#X(#à11/15/94ÐäÀœ(#œ(# 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àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94Ð è%œ(#œ(# Ѐ€Ô_ÔHydrazineÔ_Ô€Productionà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐÔ °&œ(#œ(# Ѐ€Industrial€Cleaning€(Ô_ÔPerchloroethyleneÔ_Ô)Ì€€€€„€Dry„to„dry€machines€à0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/92Ðd"@(œ(#œ(# Ѐ€Industrial€Dry€Cleaning€(Ô_ÔPerchloroethyleneÔ_Ô)Ì€€€€„€Transfer€Machinesà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà œ à11/15/92Ðô#Ð *X(#X(# Ѐ€Industrial€Process€Cooling€TowersÔÐÿŒ$h!¼$˜!Ô€fÔ0¼$˜!Œ$h!Ôà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94м$˜!+œ(#œ(# Ѐ€Ô_ÔOBPAÔ_Ô/1,3„Ô_ÔDiisocyanateÔ_Ô€ProductionÔÐÿT%0"„%`"Ô€cÔ0„%`"T%0"Ôà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Є%`",œ(#œ(# Ѐ€Paint€Stripper€Usersà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐL&(#-œ(#œ(# Ѐ€Photographic€Chemicals€Productionà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ð'ð#.œ(#œ(# Ѐ€Phthalate€Plasticizers€Productionà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐÜ'¸$/œ(#œ(# Ѐ€Plywood/Particle€Board€Manufacturingà0  àà0X(#(#àà0œX(#X(#à11/15/00Ф(€%0œ(#œ(# Ѐ€Ô_ÔPolyetherÔ_Ô€Ô_ÔPolyolsÔ_Ô€Productionà0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97Ðl)H&1œ(#œ(# Ѐ€Pulp€and€Paper€Productionà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97Ð4*'2œ(#œ(# Ѐ€Rocket€Engine€Test€Firingà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00Ðü*Ø'3œ(#œ(# Ѐ€Rubber€Chemicals€Manufacturingà0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐÄ+ (4œ(#œ(# Ѐ€Semiconductor€Manufacturingà0 Œ àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/00ÐŒ,h)5œ(#œ(# Ѐ€Symmetrical€Ô_ÔTetrachloropyridineÔ_Ô€ProductionÔÐÿ$-*T-0*Ô€cÔ0T-0*$-*Ôà0 X àà0œX(#X(#à11/15/00ÐT-0*6œ(#œ(# Ѐ€Tire€Productionà0 À àà0À (#À (#àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà  àà0XÐ(#Ð(#àà0œX(#X(#à11/15/00Ð.ø*7œ(#œ(# Ѐ€Wood€Treatmentà0 À àà0À (#À (#àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/97Ðä.À+8œ(#œ(# ÐòòÐ  ¬/ˆ,9 ÐCATEGORIES€OF€AREA€SOURCESóó€ÔÐÿôÐÿ$ÔdÔ0$ôÐÿÔÐ $ Ѐ€Asbestos€Processingà0  àà0H(#(#àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94ÐìÈœ(#œ(# Ѐ€Chromic€Acid€AnodizingÔÐÿ„`´Ô€gÔ0´„`Ôà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94дœ(#œ(# Ѐ€Commercial€Dry€Cleaning€(Ô_ÔPerchloroethyleneÔ_Ô)€Ì€€€€„€Dry„to„Dry€Machinesà0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/92ÐD œ(#œ(# Ѐ€Commercial€Dry€Cleaning€(Ô_ÔPerchloroethyleneÔ_Ô)€Ì€€€€„€Transfer€Machines€à0 H àà0ŒH(#H(#àà0ÐŒ(#Œ(#àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/92ÐÔ°œ(#œ(# Ѐ€Commercial€Sterilization€FacilitiesÔÐÿlHœxÔ€g€Ô0œxlHÔà0  àà0X(#(#àà0œX(#X(#à11/15/94Мxœ(#œ(# Ѐ€Decorative€Chromium€ElectroplatingÔÐÿ4 d @Ô€g€Ô0d @4 Ôà0  àà0X(#(#àà0œX(#X(#à11/15/94Ðd @œ(#œ(# Ѐ€Ô_ÔHalogenatedÔ_Ô€Solvent€CleanersÔÐÿü Ø, Ô€g€Ô0, ü ØÔà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94Ð,  œ(#œ(# Ѐ€Hard€Chromium€ElectroplatingÔÐÿÄ  ô ÐÔ€g€Ô0ô ÐÄ  Ôà0 Ð àà0Ð(#Ð(#àà0X(#(#àà0œX(#X(#à11/15/94Ðô Ð œ(#œ(# ÐÌÌÌÔÐÿä À ð ÔaÔ0ð ä À Ô€Only€major€sources€within€any€category€shall€be€subject€toÏemission€standards€under€Section€112€unless€a€finding€is€made€ofÏa€threat€of€adverse€effects€to€human€health€or€the€environmentÏfor€the€area€sources€in€a€category.€€All€listed€categories€areÏexclusive€of€any€specific€operations€or€processes€included€underÏother€categories€that€are€listed€separately.ÌÌÔÐÿ\8ŒhÔbÔ0Œh\8Ô€Sources€defined€as€electric€utility€steam€generating€unitsÏunder€Section€112(a)(8)€shall€not€be€subject€to€emissionÏstandards€pending€the€findings€of€the€study€required€underÏSection112(n)(1).ÌÌÔÐÿD tPÔc€Ô0tPD ÔEquipment€handling€specific€chemicals€for€these€categories€orÏsubsets€of€these€categories€are€subject€to€a€negotiated€standardÏfor€equipment€leaks€contained€in€the€HON,€which€was€proposed€onÏDecember€31,€1992.€€The€HON€includes€a€negotiated€standard€forÏequipment€leaks€from€the€Ô_ÔSOCMIÔ_Ô€category€and€20€non„Ô_ÔSOCMIÔ_ÔÏcategories€(or€subsets€of€these€categories).€€The€specificÏprocesses€affected€within€the€categories€are€listed€in€SectionÏXX.X0Ô_Ô(c)Ô_Ô€of€the€March€6,€1991€òòFederalóó€òòRegisteróó€notice€(56€FRÐ ìÈ! Ð9315).ÌÔÐÿL(|XÔÌd€Ô0D ðÔA€finding€of€threat€of€adverse€effects€to€human€health€or€theÏenvironment€was€made€for€each€category€of€area€sources€listed.€ÌÌÌÑ€9ÑÔÐÿ4"d"@ÔÔ0d"@4"ÔòòThe€following€footnotes€apply€to€source€categories€that€areÐ d"@( Ðsubject€to€court€ordered€promulgation€deadlines€(differing€fromÏthe€above€listed€regulatory€deadlines)€in€accordance€with€aÏconsent€decree€entered€in€òòSierra€Club€v.€Browneróó,€Case€No.€93„Ð 4%"+ Ð0124€(and€related€cases)€(D.C.€Dist.€Ct.).Ìóó€Ð 'ð#- ÐÔÐÿ¬'ˆ$Ü'¸$ÔeÔ0Ü'¸$¬'ˆ$Ô€judicial€deadline:€€02/28/94ÌÔÐÿt(P%¤(€%ÔfÔ0¤(€%t(P%Ô€judicial€deadline:€€07/31/94ÌÔÐÿ<)&l)H&ÔgÔ0l)H&<)&Ô€judicial€deadline:€€11/23/94€ÌÔÐÿ*à&4*'ÔhÔ04*'*à&Ô€judicial€deadline:€€02/28/95€ÌÔÐÿÌ*¨'ü*Ø'ÔÔ_ÔiÔ_ÔÔ0ü*Ø'Ì*¨'Ô€judicial€deadline:€€04/30/95ÌÔÐÿ”+p(Ä+ (ÔjÔ0Ä+ (”+p(Ô€judicial€deadline:€€05/31/95ÌÔÐÿ\,8)Œ,h)ÔkÔ0Œ,h)\,8)Ô€judicial€deadline:€€06/30/95ÌÔÐÿ$-*T-0*ÔlÔ0T-0*$-*Ô€judicial€deadline:€€07/31/95ÌÐ  .ø*6 ÐÑ+Ñâ +âÑ  Ñâ +âÑ  ÑѰ$ÑѰÑÒÀ°ÒÓ  Óò òTABLE€2.€€CATEGORIES€OF€SOURCES€OF€HAZARDOUS€AIR€POLLUTANTS€Ð ° ÐÓ  Óà@TT dàAND€REGULATION€PROMULGATION€SCHEDULE€BY€REGULATORY€DEADLINESˆÌó óÌòòSource€Categories€with€Emission€Standards€Due€by€November€15,€1992óóÐ X¨ ÐÌ€SYNTHETIC€ORGANIC€CHEMICAL€MANUFACTURINGÌ€COMMERCIAL€Ô_ÔDRYCLEANINGÔ_Ô€(Ô_ÔPERCHLOROETHYLENEÔ_Ô)€-€DRY-TO-DRY€MACHINES€*Ì€COMMERCIAL€Ô_ÔDRYCLEANINGÔ_Ô€(Ô_ÔPERCHLOROETHYLENEÔ_Ô)€-€TRANSFER€MACHINES€*Ì€COMMERCIAL€Ô_ÔDRYCLEANINGÔ_Ô€(Ô_ÔPERCHLOROETHYLENEÔ_Ô)€-€TRANSFER€MACHINESÌ€INDUSTRIAL€Ô_ÔDRYCLEANINGÔ_Ô€(Ô_ÔPERCHLOROETHYLENEÔ_Ô)€-€DRY-TO-DRY€MACHINESÌ€INDUSTRIAL€Ô_ÔDRYCLEANINGÔ_Ô€(Ô_ÔPERCHLOROETHYLENEÔ_Ô)€-€TRANSFER€MACHINESÌÌòòSource€Categories€with€Emission€Standards€Due€by€November€15,€1994óóÐ `°  ÐÌ€ACRYLONITRILE-BUTADIENE-STYRENE€PRODUCTIONÌ€AEROSPACE€INDUSTRIESÌ€ASBESTOS€PROCESSING€*Ì€BUTYL€RUBBER€PRODUCTIONÌ€CHROMIC€ACID€ANODIZINGÌ€CHROMIC€ACID€ANODIZING€*Ì€COKE€OVENS:€€CHARGING,€TOPSIDE€AND€DOOR€LEAKS€(CAA€MANDATEDÌ€€€PROMULGATION€BY€DECEMBER€31,€1992)Ì€COMMERCIAL€STERILIZATION€FACILITIESÌ€COMMERCIAL€STERILIZATION€FACILITIES€*Ì€DECORATIVE€CHROMIUM€ELECTROPLATINGÌ€DECORATIVE€CHROMIUM€ELECTROPLATING€*Ì€Ô_ÔEPICHLOROHYDRINÔ_Ô€ELASTOMERS€PRODUCTIONÌ€EPOXY€RESINS€PRODUCTIONÌ€ETHYLENE-PROPYLENE€RUBBER€PRODUCTIONÌ€GASOLINE€DISTRIBUTION€-€STAGE€1Ì€Ô_ÔHALOGENATEDÔ_Ô€SOLVENT€CLEANERSÌ€Ô_ÔHALOGENATEDÔ_Ô€SOLVENT€CLEANERS€*Ì€HARD€CHROMIUM€ELECTROPLATINGÌ€HARD€CHROMIUM€ELECTROPLATING€*Ì€Ô_ÔHYPALONÔ_Ô€(TM)€PRODUCTIONÌ€INDUSTRIAL€PROCESS€COOLING€TOWERSÌ€MAGNETIC€TAPES€(SURFACE€COATING)Ì€METHYL€METHACRYLATE-ACRYLONITRILE-BUTADIENE-STYRENE€PRODUCTIONÌ€METHYL€METHACRYLATE-BUTADIENE-STYRENE€Ô_ÔTERPOLYMERSÔ_Ô€PRODUCTIONÌ€NEOPRENE€PRODUCTIONÌ€Ô_ÔNITRILEÔ_Ô€BUTADIENE€RUBBER€PRODUCTIONÌ€NON-NYLON€Ô_ÔPOLYAMIDESÔ_Ô€PRODUCTIONÌ€PETROLEUM€REFINERIES€-€OTHER€SOURCES€NOT€DISTINCTLY€LISTEDÌ€POLYETHYLENE€Ô_ÔTEREPHTHALATEÔ_Ô€PRODUCTIONÌ€Ô_ÔPOLYBUTADIENEÔ_Ô€RUBBER€PRODUCTIONÌ€POLYSTYRENE€PRODUCTIONÌ€Ô_ÔPOLYSULFIDEÔ_Ô€RUBBER€PRODUCTIONÌ€PRINTING/PUBLISHING€(SURFACE€COATING)Ì€SECONDARY€LEAD€SMELTINGÌ€SHIPBUILDING€AND€SHIP€REPAIR€(SURFACE€COATINGS)Ì€SOLID€WASTE€TREATMENT,€STORAGE,€&€DISPOSAL€FACILITIES€(Ô_ÔTSDFÔ_Ô)Ì€STYRENE-ACRYLONITRILE€PRODUCTIONÌ€STYRENE„BUTADIENE€RUBBER€AND€LATEX€PRODUCTIONÐ  -ð(4  ЀWOOD€FURNITURE€(SURFACE€COATING)ÌÌòòSource€Categories€with€Emission€Standards€Due€by€November€15,€1997óóÐ @ ÐÌ€4-Ô_ÔCHLOROÔ_Ô-2-Ô_ÔMETHYLPHENOXYACETICÔ_Ô€ACID€PRODUCTIONÌ€2,4-D€SALTS€AND€ESTERS€PRODUCTIONÌ€4,6-Ô_ÔDINITROÔ_Ô-O-CRESOL€PRODUCTIONÌ€Ô_ÔACETALÔ_Ô€RESINS€PRODUCTIONÌ€ACRYLIC€FIBERS/Ô_ÔMODACRYLICÔ_Ô€FIBERS€PRODUCTIONÌ€AMINO€RESINS€PRODUCTIONÌ€BUTADIENE€DIMERS€PRODUCTIONÌ€Ô_ÔCAPTAFOLÔ_Ô€PRODUCTIONÌ€Ô_ÔCAPTANÔ_Ô€PRODUCTIONÌ€Ô_ÔCHLORONEBÔ_Ô€PRODUCTIONÌ€Ô_ÔCHLOROTHALONILÔ_Ô€PRODUCTIONÌ€CHLORINE€PRODUCTIONÌ€CHROMIUM€CHEMICALS€MANUFACTURINGÌ€Ô_ÔCYANURICÔ_Ô€CHLORIDE€PRODUCTIONÌ€Ô_ÔDACTHALÔ_Ô€(TM)€PRODUCTIONÌ€Ô_ÔFERROALLOYSÔ_Ô€PRODUCTIONÌ€FLEXIBLE€POLYURETHANE€FOAM€PRODUCTIONÌ€HYDROGEN€CYANIDE€PRODUCTIONÌ€MINERAL€WOOL€PRODUCTIONÌ€NON-STAINLESS€STEEL€MANUFACTURING€-€ELECTRIC€ARC€FURNACE€(Ô_ÔEAFÔ_Ô)Ì€€€OPERATIONÌ€NYLON€6€PRODUCTIONÌ€OIL€AND€NATURAL€GAS€PRODUCTIONÌ€PETROLEUM€REFINERIES€-€CATALYTIC€CRACKING€(FLUID€AND€OTHER)€Ì€€€UNITS,€CATALYTIC€REFORMING€UNITS,€AND€SULFUR€PLANT€UNITSÌ€PHARMACEUTICALS€PRODUCTIONÌ€PHENOLIC€RESINS€PRODUCTIONÌ€Ô_ÔPOLYCARBONATESÔ_Ô€PRODUCTIONÌ€Ô_ÔPOLYETHERÔ_Ô€Ô_ÔPOLYOLSÔ_Ô€PRODUCTIONÌ€PORTLAND€CEMENT€MANUFACTURINGÌ€PRIMARY€ALUMINUM€PRODUCTIONÌ€PRIMARY€COPPER€SMELTINGÌ€PRIMARY€LEAD€SMELTINGÌ€PUBLICLY€OWNED€TREATMENT€WORKS€(Ô_ÔPOTWÔ_Ô)€EMISSIONS€(CAA€MANDATEDÌ€€€PROMULGATION€BY€NOVEMBER€15,€1995)Ì€PULP€&€PAPER€PRODUCTIONÌ€REINFORCED€PLASTIC€COMPOSITES€PRODUCTIONÌ€SECONDARY€ALUMINUM€PRODUCTIONÌ€SODIUM€CYANIDE€PRODUCTIONÌ€SODIUM€Ô_ÔPENTACHLOROPHENATEÔ_Ô€PRODUCTIONÌ€STAINLESS€STEEL€MANUFACTURING€-€ELECTRIC€ARC€FURNACE€(Ô_ÔEAFÔ_Ô)Ì€€€OPERATIONÌ€STEEL€PICKLING€-€Ô_ÔHClÔ_Ô€PROCESSÌ€Ô_ÔTORDONÔ_Ô€(TM)€ACID€PRODUCTIONÌ€WOOD€TREATMENTÌ€WOOL€FIBERGLASS€MANUFACTURINGÌÌÐ  ˆ,Ø'3 ÐòòSource€Categories€with€Emission€Standards€Due€by€November€15,€2000óóÐ ° ÐÌ€AEROSOL€CAN„FILLING€FACILITIESÌ€ALKYD€RESINS€PRODUCTIONÌ€ALUMINA€PROCESSINGÌ€AMMONIUM€SULFATE€PRODUCTION€-€Ô_ÔCAPROLACTAMÔ_Ô€BY-PRODUCT€PLANTSÌ€ANTIMONY€OXIDES€MANUFACTURINGÌ€ASPHALT€CONCRETE€MANUFACTURINGÌ€ASPHALT€PROCESSINGÌ€ASPHALT€ROOFING€MANUFACTURINGÌ€ASPHALT/COAL€TAR€APPLICATION€-€METAL€PIPESÌ€AUTO€AND€LIGHT€DUTY€TRUCK€(SURFACE€COATING)Ì€BAKERS€YEAST€MANUFACTURINGÌ€Ô_ÔBENZYLTRIMETHYLAMMONIUMÔ_Ô€CHLORIDE€PRODUCTIONÌ€BOAT€MANUFACTURINGÌ€BUTADIENE-FURFURAL€Ô_ÔCOTRIMERÔ_Ô€(R-11)Ì€CARBONYL€SULFIDE€PRODUCTIONÌ€CARBOXYMETHYLCELLULOSE€PRODUCTIONÌ€CELLOPHANE€PRODUCTIONÌ€CELLULOSE€ETHERS€PRODUCTIONÑ€:ÑÌ€CELLULOSE€FOOD€CASING€MANUFACTURINGÌ€CHELATING€AGENTS€PRODUCTIONÌ€CHLORINATED€PARAFFINS€PRODUCTIONÌ€CHROMIUM€REFRACTORIES€PRODUCTIONÌ€CLAY€PRODUCTS€MANUFACTURINGÌ€COKE€BY-PRODUCT€PLANTSÌ€COKE€OVENS:€PUSHING,€QUENCHING€AND€BATTERY€STACKSÌ€Ô_ÔDODECANEDIOICÔ_Ô€ACID€PRODUCTIONÌ€DRY€CLEANING€(PETROLEUM€SOLVENT)Ì€ENGINE€TEST€FACILITIESÌ€Ô_ÔETHYLIDENEÔ_Ô€Ô_ÔNORBORNENEÔ_Ô€PRODUCTIONÌ€EXPLOSIVES€PRODUCTIONÌ€FLAT€WOOD€PANELING€(SURFACE€COATING)Ì€FUME€SILICA€PRODUCTIONÌ€HAZARDOUS€WASTE€INCINERATIONÌ€Ô_ÔHYDRAZINEÔ_Ô€PRODUCTIONÌ€HYDROCHLORIC€ACID€PRODUCTIONÌ€HYDROGEN€FLUORIDE€PRODUCTIONÌ€INDUSTRIAL€BOILERSÌÑ€<Ñ€INSTITUTIONAL/COMMERCIAL€BOILERSÌ€INTEGRATED€IRON€&€STEEL€MANUFACTURINGÌ€IRON€FOUNDRIESÌ€LARGE€APPLIANCE€(SURFACE€COATING)Ì€LEAD€ACID€BATTERY€MANUFACTURINGÌ€LIME€MANUFACTURINGÌ€MALEIC€ANHYDRIDE€COPOLYMERS€PRODUCTIONÌ€MANUFACTURE€OF€PAINTS,€COATINGS€&€ADHESIVESÌ€METAL€CAN€(SURFACE€COATING)Ì€METAL€COIL€(SURFACE€COATING)Ì€METAL€FURNITURE€(SURFACE€COATING)Ì€Ô_ÔMETHYLCELLULOSEÔ_Ô€PRODUCTIONÌ€MISCELLANEOUS€METAL€PARTS€&€PRODUCTS€(SURFACE€COATING)Ì€MUNICIPAL€LANDFILLSÌÐ  .h)5 ÐÑ , . Ñâ ,âÖ€;ÿÿÖâ .,âÑ   Ñâ .âÑ  ÑòòSource€Categories€with€Emission€Standards€Due€by€November€15,€2000óóÐ ° Ð[concluded]ÌÌ€Ô_ÔOBPAÔ_Ô/1,3-Ô_ÔDIISOCYANATEÔ_Ô€PRODUCTIONÌ€ORGANIC€LIQUIDS€DISTRIBUTION€(NON-GASOLINE)Ì€PAINT€STRIPPER€USERSÌ€PAPER€AND€OTHER€WEBS€(SURFACE€COATING)Ì€PHOSPHATE€FERTILIZERS€PRODUCTIONÌ€PHOSPHORIC€ACID€MANUFACTURINGÌ€PHOTOGRAPHIC€CHEMICALS€PRODUCTIONÌ€PHTHALATE€PLASTICIZERS€PRODUCTIONÌ€PLASTIC€PARTS€AND€PRODUCTS€(SURFACE€COATING)Ì€PLYWOOD/PARTICLE€BOARD€MANUFACTURINGÌ€POLYESTER€RESINS€PRODUCTIONÌ€POLYMERIZED€Ô_ÔVINYLIDENEÔ_Ô€CHLORIDE€PRODUCTIONÌ€POLYMETHYL€METHACRYLATE€RESINS€PRODUCTIONÌ€POLYVINYL€ACETATE€EMULSIONS€PRODUCTIONÌ€POLYVINYL€ALCOHOL€PRODUCTIONÌ€POLYVINYL€Ô_ÔBUTYRALÔ_Ô€PRODUCTIONÌ€POLYVINYL€CHLORIDE€AND€COPOLYMERS€PRODUCTIONÌ€PRIMARY€MAGNESIUM€REFININGÌ€PRINTING,€COATING€&€DYEING€OF€FABRICSÌ€PROCESS€HEATERSÌ€QUATERNARY€AMMONIUM€COMPOUNDS€PRODUCTIONÌ€RAYON€PRODUCTIONÌ€ROCKET€ENGINE€TEST€FIRINGÌ€RUBBER€CHEMICALS€MANUFACTURINGÌ€SEMICONDUCTOR€MANUFACTURINGÌ€SEWAGE€SLUDGE€INCINERATIONÌ€SITE€Ô_ÔREMEDIATIONÔ_ÔÌ€SPANDEX€PRODUCTIONÌ€STATIONARY€INTERNAL€COMBUSTION€ENGINESÌ€STATIONARY€TURBINESÌ€STEEL€FOUNDRIESÌ€SYMMETRICAL€Ô_ÔTETRACHLOROPYRIDINEÔ_Ô€PRODUCTIONÌ€TACONITE€IRON€ORE€PROCESSINGÌ€TIRE€PRODUCTIONÌ€URANIUM€Ô_ÔHEXAFLUORIDEÔ_Ô€PRODUCTIONÌ€VEGETABLE€OIL€PRODUCTIONÌÌÌ*€€Denotes€area€source€categoryÌÌÌÔ†ÿÿÔÔ†ÿÿÔÔ  ÔÔ  ÔññÔ_Ô