Re:RecentmercuryemissionstestdataJohnRegoto:ConradChin09/21/201209:49AMCc:JonathanAverback,ConradChin,ChuckFrench,Jeff.McKinneyHistory:Thismessagehasbeenrepliedtoandforwarded.Conrad:EMIagreesthatthesecondtestresultisverydifferentfromthefirsttestresult.Inadditiontothefactthatdifferenttestmethodswereusedinthe2010and1012stacktests,theresultscouldsimplyreflecttheinherentvariabilityinmeasurementsofemissionsthatare,inabsoluteterms,verysmalltobeginwith.Wehavenobasisforknowingwheretheseresultsfallalongtherangeofpotentialemissions--hencetheneedforadditionalteststoprovidesufficientdatapointstoconstructameaningfulestimateoftheMACTfloor.Aswehavediscussedinthepast,sincemercuryisveryvolatile,EMIbelievesitispredominatelyemittedshortlyaftertheoreischargedtothefurnace,It’spossiblethatthemeasurementperiodsofthelatertestweremoreheavilyweightedtowardthishigher-emittingportionofthesmeltingprocess.ThisiswhyEMIproposedtoincludeCEMofpre-treatmentemissionsintheproposedACIperformancetest.EMIstillbelievesthatwouldmakesense.IunderstandfromEMIthattheydonothavedatathatwouldallowacomparisonoforecontenttoemissionsduringaparticulartest,becausesuchdatawerecollectedonthebarge,wellbeforethetestedshipmentoforewascommingledinstockpilesandwellbeforethespecificoreusedinaparticularrunwasremovedfromthosestockpilesforprocessing.Letmeknowifyouwouldliketodiscusstheseissuesfurther.JohnJohnRego•Environmental,Health&Safety901LAKESIDEAVENUECLEVELAND,OHIO44114DIRECT216.586.7542•FAX216.579.0212.JREGO@JONESDAY.COMFroConradChin<Chin.ConradepamaiI.epa.gov>m:To:JohnRego<jregoJonesDay.com>Cc:ChuckFrench<French.Chuck@epamail.epa.gov>,Jeff.McKinneyerametgroup.com,JonathanAverback<Averback.Jonathanepamail.epa.gov>,chin.conradepa.govDate09/18/201203:13PMSubjRecentmercuryemissionstestdataect:GoodAfternoonJohnThankyouagainforprovidingthedatatablesforthenewlyregulatedpollutants.Inreviewingthemercurydata,wehaveaquestion.Comparingwiththe2010ICRtestdata,wenoticedthemercurymassemissionratefromthefurnace#12stackwasfourtimeshigherfortheJulytests(0.077lb/hrversus0.018lblhr).Doyouhaveanyexplanation?Forexample,wereyouusingtheComilogorewithmoremercurycontent?Wouldyousaythatthisbatchoforeisatthehighrangeofmercurycontent?InpastdiscussionswithJeffMcKinney,ErametprobablyanalyzedthemercuryorecontentoftheComilogore.Wouldyoubeabletoprovidethemercurycontentintheoreforthe2010ICRtestandtheJuly2012test?Thanksandbestregards,ConradK.ChinMailCodeD243-02MetalsandMineralsGroupSectorPoliciesandProgramsDivisionOfficeofAirQualityPlanningandStandardsU.S.EnvironmentalProtectionAgency919-541-1512(voice)919-541-3207(fax)‘JohnRego---09/04/201202:33:04PM---Chuck:AttachedarethedatatablesfromEMIJulystacktests.AtthispointEMIFrom:JohnRego<jregoJonesDay.com>To:ChuckFrench/RTP/USEPA/US@EPACc:ConradChin/RTP/USEPAIUS@EPA,Jeff.McKinneyerametgroup.com,lmcafee@bdlaw.com,jskonradyfpiwv.comDate:09/04/201202:33PMSubject:Re:Ferroalloy-recentemissionstestdataChuck:AttachedarethedatatablesfromEMIJulystacktests.AtthispointEMIhasonlyreceivedafullreportwithrespecttothecomplianceportionofthetest(i.e.,thePMtesting)andIwillbeforwardingahardcopyofthatreport.EMIisawaitingthefullreportregardingthefournon-RTRcompounds,whichIwillalsoforwardwhenavailable.Ihadthesensethatyouwould,however,liketoseethedatatablesassoonastheywereavailable.MyunderstandingisthattherewerenounusualoccurrencesduringthetestingatEMIandthatthefullreportsshouldberoutine.Pleaseletmeknowifyouhaveanyquestions.JohnJohnRego•Environmental,Health&Safety D&.901LAKESIDEAVENUECLEVELAND,OHIO44114DIRECT216.586.7542•FAX216.579.0212’JREGO@JONESDAY.COM