STATEODELAWAREDEPARTMENTOFNATURALRESOURCESANDENVIRONMENTALCONTROLOIcEOFTHE89KINGsHIGHWAYPHONE:(302)739-9000SECRETARYDOVER,DELAWARE19901FAX:(302)739-6242Secretary’sOrderNo.:2011-A-0020RE:ApprovingasFinalSupplementtoDelaware’sSept.16,2009CAASection110,“Infrastructure”StateImplementationPlan(SIP)SubmissionDateofIssuance:March16,2011EffectiveDateoftheAmendment:April11,2011UndertheauthorityvestedintheSecretaryoftheDepartmentofNaturalResourcesandEnvironmentalControl(“Department”or“DNREC”)thefollowingfindings,reasonsandconclusionsareenteredasanOrderoftheSecretaryintheabovereferencedrulemakingproceeding.BackgroundandProceduralHistoryThisOrderconsiderstheproposedStateImplementationPlan(SIP)documentthatwillbesubmittedbyDNRECtotheEnvironmentalProtectionAgency(“EPA”)tosupplementDelaware’sSeptember16,2009CAASection110“Infrastructure”StateImplementationPlan(SIP)Submission.TheDepartment’spreviousSIPsubmissionofSeptember16,2009,titledStateImplementationPlanforMeetingtheInfrastructureRequirementsoftheCleanAirActforFineParticulateMatter,wassubmittedtotheEPAtosatisfytherequirementsofSection110(a)(1)and110(a)(2)oftheCleanAirAct Ve€aata’te‘ 9ood taza’w

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odI(“CAA”)regardingtheNationalAmbientAirQualityStandards(“NAAQS”)forFineParticles(PM2.5)promulgatedbytheEPAonOctober17,2006(71FR61224).Delaware’sSeptember16,2009SIPrevisionexplained,amongotherthings,howDelawarehassatisfiedtherequirementsofCAA110(a)(2)(D)(i)(I)forinterstatetransport.TheSIPrevisionthattheDepartmentiscurrentlyproposingsupplementstheSeptember16,2009SIPrevisionbyaddingatechnicalanalysisthatexplainsanddemonstratesinadditionaldetailhowDelawarehassatisfiedtherequirementsofCAA110(a)(2)(D)(i)(I),addressinginterstatetransportbydemonstratingthatDelawarehasfulfilleditsrequirementstocontrolsourcesthatcontributesignificantlytonon-attainmentin,orinterferewithmaintenanceby,anyotherStatewithrespecttoanysuchnationalprimaryorsecondaryambientairqualitystandard(s)whichaddressdownwindcontributions(interstatetransport)fromDelawaresources.ItshouldbenotedthatonDecember8,2010,theDepartmentsubmittedthesamesupplementaltechnicalanalysisthatitiscurrentlyproposingtotheEPA,andrequestedthatEPAprocessitinparallelwithanyrulemakingonitsSeptember16,2009SIPsubmissionwhileDNRECcompletesthepublicparticipationproceduresnecessarytomakeaformalSIPrevisionrequest.Thisisknownas“parallelprocessing”,andisdetailedin40CFRPart51Appendixvat2.3.1.ThiswasdonetoenableEPAtoconsiderthistechnicalanalysisinanyrulemakingittakesonDelaware’sSeptember16,2009submittalbetweennowandthedatethecompleteformalsubmittalofthisSIPsupplementismadebyDNRECtoEPA.ItshouldbenotedthattheDepartmentreceivednopubliccommentatanyphaseofthispromulgationprocess,including,butnotlimitedto,atthetimeofthepublic2hearingonFebruary1,2011.Propernoticeofthehearingwasprovidedasrequiredbylaw.TheDepartmentpublishedtheproposedsupplementalSIPsubmissionintheJanuary1,2011DelawareRegisterofRegulationandheldapublichearingonFebruary1,2011.TheDepartment’spresidinghearingofficer,LisaA.Vest,preparedaHearingOfficer’sReportdatedMarch8,2011(Report).TheReportrecommendscertainfindingsandtheadoptionoftheproposedsupplementalSIPsubmissionasattachedtotheReportasAppendixA.FindingsandDiscussionIfindthattheproposedsupplementalSIPsubmissioniswell-supportedbytherecorddevelopedbytheDepartment,andadopttheReporttotheextentitisconsistentwiththisOrder.TheDepartment’sexpertdevelopedtherecordanddraftedtheproposedsupplementalSIP.Throughouttheentireregulatorydevelopmentprocessregardingthispromulgation,theDepartmentreceivednopubliccommentsfromtheregulatedcommunity,asnotedintheReport.IfindthattheDepartment’sDAQexpertfullydevelopedtherecordtosupportadoptionofthisproposedsupplementalSIPsubmission.Withthisadoptionofthispromulgation,theDepartmentwillbeenabledtosupplementitsSeptember16,2009SIPrevisionbyaddingatechnicalanalysisthatexplainsanddemonstratesinadditionaldetailhowDelawarehassatisfiedtherequirementsofCAA110(a)(2)(D)(i)(I),addressinginterstatetransportbydemonstratingthatDelawarehasfulfilleditsrequirementstocontrolsourcesthatcontributesignificantlytonon-attainmentin,orinterferewithmaintenanceby,anyotherStatewithrespecttoanysuchnationalprimaryorsecondary3ambientairqualitystandard(s)whichaddressdownwindcontributions(interstatetransport)fromDelawaresources.Inconclusion,thefollowingfindingsandconclusionsareentered:1.)TheDepartmenthasjurisdictionunderitsstatutoryauthoritytoissueanOrderadoptingthisproposedAmendmentasfinal;2.)TheDepartmentprovidedadequatepublicnoticeoftheproposedsupplementalSIPsubmission,andprovidedthepublicwithanadequateopportunitytocommentonthesame,includingatapublichearing;3.)TheDepartmentheldapublichearingonFebruary1,2011ontheproposedsupplementalSIPsubmissioninordertoconsiderpubliccommentsbeforemakinganyfinaldecision,however,theDepartmentreceivednopubliccommentsconcerningthismatter;4)TheDepartment’sHearingOfficer’sReport,includingitsrecommendedrecordandtherecommendedsupplementalSIPsubmissionassetforthinAppendixA,areadoptedtoprovideadditionalreasonsandfindingsforthisOrder;5.)TherecommendedsupplementalSIPsubmissiondoesnotreflectanysubstantivechangefromtheproposedsupplementalSIPsubmissionaspublishedintheFebruary1,2011,DelawareRegisterofRegulations;6.)TherecommendedsupplementalSIPsubmissionshouldbeadoptedasfinalbecauseDelawarewillthenbeenabledtosupplementitsSeptember16,2009SIPrevisionbyaddingatechnicalanalysisthatexplainsanddemonstratesinadditionaldetailhowDelawarehassatisfiedtherequirementsofCAA110(a)(2)(D)(i)(I),addressinginterstatetransportbydemonstratingthatDelawarehasfulfilleditsrequirementsto4controlsourcesthatcontributesignificantlytonon-attainmentin,orinterferewithmaintenanceby,anyotherStatewithrespecttoanysuchnationalprimaryorsecondaryambientairqualitystandard(s)whichaddressdownwindcontributions(interstatetransport)fromDelawaresources.Moreover,thesupplementalSIPsubmissioniswellsupportedbydocumentsintherecord;and7.)TheDepartmentshallsubmitthisOrderapprovingthefinalsupplementalSIPsubmissiontotheDelawareRegisterofRegulationsforpublicationinitsnextavailableissue,andprovidesuchothernoticeasthelawandregulationrequireandtheDepartmentdeterminesisappropriate.SecretaryAhea?Suppl.toDESept.09CA.ASect.110Infrastr.SIPrevision2011.ORD5

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