ÿWPCÆ B1°f5i«›†uY†N‘-‰¶|èNÿœ -3âÈ9Ì#ø~âÊKH×~‹‘gç›D 9$Ò[Òô\iÃñ±àãY}_ê¦Õœø]’ÅžþA²z4„¬·¥i»‰ù£gg—ˆ (Oaç"5ˆ}Q‘ëéu‚®|À­¾í¾ !TGu3mF#w‹Þ®­qÆø`•$‚‡€ú ¨jB7üº—®¿ûþBZK6NÔ MÜÀBL’½"Y%Yo´+ÓÍÓÒ‹T±DŽ×£þ!ÿ±ÖɆ°ßg†˜¶oh8}¥–Ùäø(Í]ììK?\äúÙã²5Œu,“"Û‹ŒX°¢hgÖþÍ,g ­Âú'85=î&‰Seño×—"›ƒàÀ,Yn§E é';•$ìL»@û}ÐöÊ ‹‰ô9ܱÃß'†¼ž›p¬bö9!Æ‰ÃøhؤèI>Â0W#!ÂUNã %1 0(7^ _wk4oƒ’ m”UF«U>ñJ/ / My 0N} U6Ë N  0l‚ 0Dî 32 0Deeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee B©˜HP LaserJet 6P,ü,,,,,ü0(ÈhH  Z6Times New Roman RegularX($¡¡€ƒt(cÊTn(ê:i¢Ø+003|xÿU‹ÿÀÀÀ<4šÛ 9Z+‹.Courier New Regular<è\( 9Z+&Courier Regular  NSR BACT LAER"desulfurizationHarnett NOx SCRULNOXMMBTU PSD VOChydrotreatesNESHAP CFR €PArt Part VOCs ppmhydrotreaters(ÍO$——ÔÿÔòòóóÔÿÔ<þ6X9`(Courier New uÝ ƒüÝ$Ýà  àòòÚ  Ú1Ú  ÚóóÝ  ÝÔ_ÔÔ‡ X,%XXXÔSome€exceptions€apply€for€small€refiners€and€gasolineÐ ° Ðproduced€for€sale€in€parts€of€the€Western€U.S.€€For€a€fullÏdescription€of€the€program,€see€the€final€rule€published€onÏFebruary€10,€2000€(65€FR€6698).Ô#†X¾‡XX X,%S#Ô((3üÝ$¤¤Ý ƒ!ÝÝ  Ýà  àòòÚ  Ú0Ú  Úóó(#Ã$òòÚ  Ú0Ú  Úóó )Ý ƒ¯'ÝÝ  ÝÔ_Ôòòò òÔ‡ X,%XXXÔÓ  Ó**€DRAFT€DOCUMENT€FOR€PUBLIC€REVIEW€**Ð ° ÐDOES€NOT€REPRESENT€OFFICIAL€AGENCY€Ô_ÔPOLICYÔ#†X¾‡XX X,%1#Ôó óóóÔ_ÔÔ_ÔÔ_Ô(3¯$§§Ý ƒ!ÝÝ  Ý dÝ ƒ!ÝÝ  ÝÔ_ÔÖ€ÿÿÖÑ8€¾‡XXdðdÈ8ÑÌÌÌÔ_Ôà@zz ìàò ò(€DRAFT€DOCUMENT€€„€DOES€NOT€REPRESENT€OFFICAL€EPA€POLICY)€ó óÔ_ԈР Ð ÐÔ_ÔÌÔ_ÔÔ_Ôà@qq#ìàMarch€14,€2000Ô_ÔˆÌÌòòÔ‡ X,%XXXÔMEMORANDUMóóÔ#†X¾‡XX X,%k#Ô€Ô_Ô€Ô_ÔÐ Ô  ÐÌÔ‡ X,%XXX¾‡ÔSubject:€BACT€and€LAER€for€Tier€2/Gasoline€Sulfur€RefineryÐ ´p  ÐProjectsÔ#†X¾‡XX X,%ò#ÔÐ ŠF  ÐÌÔ€ X,%XXX¾‡ÔÔ‡ XÃÑXX X,%ÔFrom:€Bill€HarnettÐ P  ÐÔ#† X,%XX XÃÑÀ#ÔÌTo:€Air€Division€DirectorsÌÌÌòòBackgroundóóÐ p, ÐÌà  àEPA€recently€issued€new€emissions€standards€(ð ðTier€2Ïstandardsðð)€for€all€passenger€vehicles,€including€sport€utilityÏvehicles,€minivans,€vans,€and€pick„up€trucks.€€€As€part€of€thisÏprogram,€EPA€also€set€new€standards€to€significantly€reduce€theÏsulfur€content€in€gasoline.€€These€€standards€require€that€mostÏrefiners€meet€a€corporate€average€gasoline€sulfur€standard€of€120Ïppm€and€a€cap€of€300€ppm€beginning€in€2004.€€In€2005,€mostÏrefiners€will€have€produce€gasoline€meeting€a€30€ppm€averageÏsulfur€level.€€By€2006,€most€refiners€must€meet€an€80€ppm€cap€andÏa€30€ppm€average€sulfur€level.׃×Ý ƒ#ÃÝòòÚ  Ú1Ú  ÚóóÝ  Ý×  ×€Ô‡XÃÑXX X,%Ô€Ô#† X,%XXXÃÑ"#ÔIn€order€to€meet€these€sulfur€inÐ ¢^ Ðgasoline€requirements,€some€refiners€will€have€to€makeÏmodifications€to€their€existing€facilities.€€EPA€further€believesÏthat€in€certain€of€these€cases€these€modifications€will€beÏsubject€to€the€major€new€source€review€(NSR)€preconstructionÏpermitting€requirements€under€parts€C€and€D€of€the€Clean€Air€Act.€ÏThe€refiners€subject€to€major€NSR€will€be€required€to€undergo€aÏpollution€control€technology€evaluation€to€apply€either€BACT€orÏLAER,€depending€on€the€applicable€program€requirements.€ÌÐ ('ä% Ðà  àTo€provide€greater€certainty€and€to€expedite€the€NSRÏpermitting€process€for€refinery€projects€undertaken€to€complyÏwith€the€€gasoline€sulfur€standards,€EPA€has€determined€that€itÏwould€be€beneficial€to€provide€federal€guidance€on€BACT€and€LAERÏfor€these€type€of€projects.€€This€guidance€is€intended€to€set€outÏa€level€of€control€that,€in€our€view,€would€be€expected€toÏsatisfy€the€BACT€and€LAER€requirements€for€certain€emission€unitsÏand€pollutants€associated€with€refinery€desulfurization€projects.ÏWhile€state€and€local€permitting€agencies€are€not€required€toÏapply€this€guidance€in€establishing€BACT€or€LAER€for€a€particularÏemission€unit,€the€guidance€will€add€certainty€as€to€EPAððsÏgeneral€perspective€and€expectations€as€to€the€applicableÏtechnology€requirements€which€satisfy€BACT€and€LAER€for€certainÏtypes€of€refinery€emission€units.€In€addition,€it€is€alsoÏimportant€to€note€that€this€guidance€on€control€technology€mayÏnot€be€appropriate€in€all€cases.€€The€NSR€program€requires€aÏcase„by„case€analysis€of€BACT€and€LAER.€€In€specific€cases,Ïunusual€site„specific€circumstances€may€warrant€a€different€levelÏof€control€than€that€suggested€by€EPAððs€analysis.€€Thus,€whereÏadditional€or€new€information€presented€by€the€applicant€orÏpublic,€within€the€context€of€the€processing€of€a€specific€permitÏapplication,€becomes€available€it€should€also€be€considered€whenÏevaluating€BACT€or€LAER€for€a€specific€emissions€unit.€€€Ìà  àà ` àà ¸ àà  àà h àà À àà  àà p àà È àà  àà x àÌà  àThe€control€technology€findings€discussed€in€this€guidanceÏare€based€on€information€and€analyses€contained€in€the€attachedÏreport,€titled€ð ðPetroleum€Refinery€Tier€2€BACT€Analysis€Reportðð.€ÏThe€report€was€prepared€by€the€Eastern€Research€Group€underÏcontract€to€EPA.ÌÌÌòòBACT€and€LAER€for€NOx€emissions€from€Refinery€Heatersóó€Ð .!ê ÐÌà  àAfter€a€review€of€the€available€information,€it€is€EPAððsÏconclusion€that€for€NOx€emissions,€€a€combination€of€SelectiveÏCatalytic€Reduction€(SCR)€and€Ultra„low€NOX€burners€representsÏBACT€for€new€process€heaters€at€refineries€capable€of€firing€50ÏMMBTU€or€greater€of€refinery€or€natural€gas.€€The€combination€ofÏcontrols€represents€the€best€level€of€control€that€can€beÏachieved€and€would€be€expected€to€result€in€an€overall€NOxÏreduction€of€upwards€of€97%€from€uncontrolled€levels.€The€averageÏand€incremental€costs€are€acceptable€and€there€are€no€adverseÏenvironmental€or€economic€impacts€associated€with€the€controlÏstrategy€that€would€indicate€that€a€less€stringent€options€shouldÏbe€considered.€Consequently,€EPA€believes€this€control€strategyÐ  ,È$, Ðis€BACT€for€such€units.€€ÌÌà  àAt€this€time€the€combination€of€SCR€and€Ultra„low€NOXÏburners€represents€the€most€stringent€control€level€achieved€orÏcontained€in€a€SIP.€€As€a€result,€it€also€represents€LAER€forÏthose€units.€€ÌÌà  àEPA€expects€that€refineries€will€likely€be€able€to€avoid€theÏapplication€of€major€NSR€to€individual€or€multiple€new€refineryÏprocess€heaters€of€less€that€50€MMBTU€by€controlling€emissions€toÏlevels€well€below€the€applicable€significance€level€for€a€majorÏmodification€(e.g.,€40€tons€per€year€for€PSD).€€Consequently,€weÏdo€not€believe€it€is€appropriate€to€provide€a€position€on€BACTÏfor€these€units€at€this€time.€€Should€the€need€arise€for€federalÏguidance€on€BACT€for€these€refinery€process€heaters€within€theÏcontext€of€permitting€€refinery€gasoline€desulfurization,€we€willÏconsider€issuing€supplemental€guidance€at€that€time.€€ÌÌÌòòBACT€and€LAER€for€VOC€emissions€from€Refinery€EquipmentóóÐ &â ÐÌà  àAfter€a€review€of€the€available€information,€it€is€EPAððsÏconclusion€that€for€VOC€emissions€from€hydrotreaters€and€hydrogenÏunits,€at€both€large€and€small€refiners,€compliance€with€theÏHazardous€Organic€National€Emission€Standards€for€Hazardous€AirÏPollutants€(HON)€(40€CFR€Part€63€Subpart€H)represents€BACT.€€ThisÏis€the€most€stringent€control€level€achievable€for€VOCs€fromÏthese€units.€€In€concluding€that€compliance€with€the€HONÏrepresents€BACT,€EPA€considered€the€incremental€and€average€costÏof€the€control€strategy€as€well€as€any€associated€energy€andÏenvironmental€impacts.€€No€adverse€impacts€were€found€to€beÏassociated€with€the€most€effective€control€option.€Consequently,€Ïwas€determined€to€be€BACT.ÌÌà  àThe€control€option€represents€the€most€stringent€controlÏlevel€achieved€or€contained€in€a€SIP,€it€therefor€also€representsÏLAER€for€those€units.€€ÌÌòòEffect€of€GuidanceóóÐ 'Ä& ÐÌà  àThis€guidance€document€does€not€supercede€existing€FederalÏor€State€regulations€or€approved€SIPððs.€€The€policies€set€out€inÏthis€memorandum€do€not€represent€final€Agency€action,€and€areÏintended€as€guidance€only.€€The€analysis€undertaken€applies€onlyÏprospectively€and€only€to€major€NSR€permit€applications€for€Ð  ,È$, Ðgasoline€desulfurization€related€projects€which€have€beenÏdetermined€to€be€complete€by€the€relevant€permitting€agency€noÏlater€than€18€months€from€the€date€of€this€memorandum.€€ThisÏmemorandum€is€not€ripe€for€judicial€review.€€Moreover,€it€is€notÏintended,€nor€can€it€be€relied€upon,€to€create€any€rightsÏenforceable€by€any€party€in€litigation€with€the€United€States.€ÏAgency€officials€may€decide€to€follow€the€guidance€provided€inÏthis€memorandum,€or€to€act€at€variance€with€the€guidance,€basedÏon€an€analysis€of€specific€circumstances.€€The€EPA€may€changeÏthis€guidance€at€any€time€without€public€notice.€€ÌÌà  àThe€EPA€will€continue€to€evaluate€the€need€for€furtherÏguidance€on€BACT€and€LAER€determinations€for€emissions€units€andÏother€pollutants€(e.g.,€SO2)€associated€with€refineryÏdesulfurization€projects€undertaken€to€comply€with€Tier€2Ïrequirements€and,€as€necessary,€may€issue€additional€guidance€inÏthe€future.€ÌÌòòDistribution/Further€InformationóóÐ P  ÐÌà  àWe€are€asking€Regional€Offices€to€promptly€send€thisÏmemorandum€with€attachment€to€State€and€local€permitting€agenciesÏwithin€their€jurisdiction.€€Questions€concerning€the€applicationÏof€this€guidance€to€specific€BACT€or€LAER€determinations€andÏcases€should€be€directed€to€the€appropriate€EPA€Regional€Office.€ÏRegional€Office€staff€may€contact€David€Solomon€of€the€IntegratedÏImplementation€Group€at€919„541„5375,€if€they€have€any€questions.€ÏThis€document,€including€the€referenced€attachment,€is€alsoÏavailable€on€the€Internet,€at€http://www.epa.gov/ttn/nsr,€underÏð ðWhatððs€New€on€NSR.ððÌÔ€ XƒËXX X¬VÔÌAttachmentÌÌ