Secrctary'sOrderNo.:2014-A-0015RE:ApprovingRevísedFinalRevisiontotheDelaware201IBaseYearStateImplementationPlan(SIP)EmissionlnventoryforVolatileOrganicCompounds(VOCs),NitrogenOxides(NOx)'andCarbonMonoxide(CO)forAreasofMarginalNon-Attainmentunderthe2008OzoncNationalAmhientAirQualityStandard(NAAQS)DateofIssuance:July2l'2014EffectiveDateofthcAmendment:Augustll,2014lJndertheauthorityvestedintheSecretaryoftheDepartmentofNaturalResourcesandEnvironmentalControl("Department'oor*DNREC")thefollowingfìndings,reasonsandconclusionsareenteredasanOrderoftheSecretaryintheaboverefì:rencedrulemakingproceeding.BackgroundandProceduralHistoty'IhisOrderconsiderstheproposedrevisiontotheDelawareStateImplementationPlan(SIP)formeetingtheCìleanAirAct("CAA")requirementsforthe8-hourozoneNationalAmbientAirQualityStandard("NAAQS")sctlbrthbytheU.S.ljnvironmentalProtectionAgency("EPA")in2008.AocordingtoSection182(a)(l)ofCAAandEPA'simplementationrulef'orthe2008oz,onestandard(ProposedRule.Junc6,2013,78l"R34178),DelawareisrequiredtosubmittoßPAinJuly2014aSIPrevisionwhichcompilesDelaware201Iemissionsol'v<llatileorganiccompounds("VOCs"),oxidesofnitrogen("NOx"),andcarbonmonoxide("CO")fromfivcsourcesectors:stationarypoitttsources,stationarynon-pointsources,on-roadmobilesources,non-roadmobilesources,andnaturalsources,Thesubjeotdocurnçntcontainsl)elaware'sbaseyearemissioninventorySIPrevisionunderthe8-hourozoneNAAQSsetfbrthbytheU.S.EnvironmentalProtectionAgency("liPA'o)in2008.InMarchof2008,theEPArevisedthe19978-hourozoneNAAQSof0.08partspermillionto0.075partspermillion.l'he2008ozoncstandardof0.011partspermillionisexpectcdtoprovidebetterprotectionofpublichealthandenvíronment.InafinalruleonMay2012,theEPAdcsignated46areasinthecountryasnon-attainmentfblthe2008ozonestandard,includingNewCastleCountyandSussexCountyinDelaware.Tofacilitateplanning,Sections182(aXl)and172(c)(3)oftheCAArequireallozonenon-attainmentareastoestablishacomprehensive,accurateandcurrerrtinventoryofactualemissionsfromallsourcesoftherelevantpollutant(s)intheareabyJuly20,2014,whichistwoyearsafterdesignationasnon-attainmentfbrthe2008ozonestandard."l'hcrelevantpollutantsthatcontributetotheatmosphericformationofozoneincludeVOCs,NOx,andCO.I)elawarehaspreviouslybeendesignatednon-attainmentforozoneunderthe1990I-hourandthe19978-hourozonestandards,andhasthusbeensub.iecttothisemissioninventoryrequirementsincc1990.DelawarehasdevelopedemissionsinventoriesthatmeetthecriterionofSections182(a)(1)and172(cX3)oftheCAAeverythreeyearssincc1990,andDelaware'slatestcomprehensiveinventoryofactual2TheSIPisacomplex,fluiddocurnentcontainingregulations,source-specificrequirements,andnon-regulatolyitemssuch&splansandemissioninventories.Delaware'sinitialSIPwasapprovedbytheIìPAonMay31,1972,Sincethatinitialapproval,theDelawaleSIPhasbeenrevisednumeroustimestoaddressairqualitynonattainrnentaudrnaíntenanceissues.'l'hiswasdonebyupdatirrgplansandinventories,andbyaddingnewandrevisedregulatorycontrolrequirements.Delaware'sSIPisconrpiledinthecodeofFederalRegulationsat40C.F.R.Part52,Subpart1.'l'hel)epartment'spresidingheatingofficer,L,isaA.Vest,preparedaHearingOllicer'sReportdatcdJuly14,2014(Report).TheReportrecommendscertainfindingsandtheadoptionofitheproposedrevisiontoDelaware'sStateImplementationPlanfirrrneetingtheCleanAirAct('CAA")requirementslbrthe8-hourozoneNationalAnrbientAirQualityStandard("NAAQS")setforthbytheU.S.EnviroumentalProtectionAgency("EPA")in2008,asattachedtotheReportasAppendixA.FindingsandDiscussionIfindthattherevisedproposedrevisiontoDelaware'saforementioncdSIPiswell-supportedbytherecorddevelopedbytheDepartment,andIadopttheReporttotheextentitisconsistentwiththisOrder.TheDepartment'sexpertsdevelopedtherecordanddraftedtlterevisedproposedSIPrevision.IfindthattheDepartment'sexpertsintheDivisionofAirQualityfullydevelopedtlrerecordtosupportadoptionoftherevÍsedpr:oposedrevisiontotheDelawareStatcImplernentationPlan(SIP)formeetingtheCleanAirActrequit:etnentsforthe8-hourozoneNationalAmbientAirQualityStandardsetfofthbytheU.S.EnvironmentalProtectionAgency("IÌPA")in2008.V/iththeadoptionofthisOrder,Delawarewill3onceagaindelnonstratethatthecontingencyrequirementslistedinSection182(a)(l)oftheCleanAirAct(CAA)aremet.Inconclusion,thefollowingfindingsandconclusionsareentered:l.)TheDepartrnenthasjurisdictionunderitsstatutoryauthoritytoissueanOrderadoptingtbisrevi,vedproposedSIPrevisionasfinal;2)TheDepartmentprovidedadequatepublicnoticeoftheproposedSIPrevision,andprovidcdthepublicwithanadequateoppodunitytoconrmentontheproposedSIPtevision,includingatthepublichearingheldonJune26,2014;3.)TheDepartmentheldapublichearingonJune26,2014,inordertoconsiderpubliccommentbeforemakinganyfinaldecision;4.)TheDepartment'sHearingOfficer'sReport,incluclingitsrecommendedrecordandthereaolnmendedrevisedSIPrevision,assetforthinAppendixA,isadoptedtoprovideadditionalreasonsandfindingsforthisOrder;5.)Therecommendedrevisedrevisiontol)elaware'sStateImplementationPlan(SIP)forrneetingtheCleanAirActrequirementsforthe8-hourozoneNationalAmbientAirQualityStandardsetforthbytheU.S.EnvironmentalProtectionAgency("EPA")in2008shouldbeadoptedasfinal,therebyenablingDelawareto(l)dernonstratetliatthecontingencyrequirelnentslistedinSection182(aXl)oftheCleanAirAct(CAA)aremet;and(2)becausetherevisioniswellsupportedbydocumentsintherecold;46.)T'hcDepartmentshallsubmitthisOrderapprovingthefìnalrevisedrevisiontoDelaware'sStatelmplcmentationPlan(SIP)totheDelawarelLegistero.l'Regulatíomfiorpublicationinitsnextavailablcissue,andprovidesuchothcrnoticcasthelawandregulationrequireandthcDepartmentdeterminesisappropriate.DavidS.SmallSecretaryÁhc¡ÀSIPlìev.20lIllascYrllmissionslnv.t'orVOCNOxandCO20l4.OltD5