ML13289A218

6.a.ii.6 Sqn Annual Air Inspection Report 2009

ML13289A218
Person / Time
Site:	Sequoyah
Issue date:	04/01/2011
From:	Tennessee Valley Authority
To:	Office of Nuclear Reactor Regulation
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CHATTANOOGA-HAMILTON COUNTYAIRPOLLUTION CONTROLBUREAUTennesseeValleyAuthority-SequoyahNuclearPlant P.O.Box2000MailStopSB-2ASoddy-Daisy, Tennessee 37384-2000 2600IgouFerryRoadSoddy-Daisy, Tennessee 37379-3624 Telephone:

843-6700or843-6713 Telefax:843-7080Contacts:StephanieHoward,LynneKoby J.AlanFrazierEngineerApril1,2011(Nextinspectionreportdue:July 17,2011)Applicable Certificates:

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4150-30703099-09C 4150-30900203-10C 4150-20200102-11C*

wm^m^B^^^^^^^^^^^K^^^K Unit#1CoolingTowerUnit#2CoolingTowerInsulation SawsAandBAuxiliary BoilersAandBCarpenter ShopAbrasiveBlastingOperationEmergencyGenerators1A,IB,2A,and2B andBlackoutGenerators 1and2*Federally Enforceable Certificate Compliance:

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$685$685$200July17,2012

$415$200$200$285TotalFees:$2,670SiiaiiSlBoilersandGenerators UsageReportReceived:May 14,2010Infulloperational andenforcement compliance AnnualOnsiteInspection Performed:

March31,2011FullCompliance EvaluationCompleted:April 1,2011PurposeTheabovelistedcertificates ofoperation forTennessee ValleyAuthority (TVA)areduetoexpireonJuly17,2012.Anannualinspection oftheequipment thatiscoveredbythecertificates wasmadeatSequoyahNuclearPlantonMarch31,2011.Theobservations thatweremadeduringtheinspection aresummarized inthisreport.Thisreportalsoincludesdiscussions oftheoperation ofthepermitted equipment, theairpollutant emissions, andtheapplicable regulations.

ProcessDescription TVASequoyahusestwonuclearreactors, whicharereferredtoasReactorUnits#1and#2,toheat pressurizedwater.Foreachreactorunit,thispressurizedwater,whichcirculatesinaclosedloop,isusedasasource ofheattoproducesteaminside offourparallelsteamgenerators.

Theresulting steamfromthefoursteam generators ofeachunitissenttoa commonheaderand isthenusedinahigh-pressure turbinefollowedbythreelow-pressure turbinesinseriestopoweragenerator thatproduceselectricity.

Thesteamiscondensed afteritexitsthefourturbines, andthewater,whetherintheliquidorgaseous(steam)state,circulatesinaclosedloopforeachunit.Thiswateris circulatedbytwoparallelfeedwaterpumpsthatareeachdrivenbyaturbine.These twoturbinesforeachunitarepoweredby"extraction"steamthatis divertedfromtheinitial high-pressure turbine.WaterfromtheadjacentTennessee Riverisusedtocondensethesteam.Reintroduction ofthiswaterintotherivercannotresultinthedownstream temperature oftheriverbeingraisedbymorethan5.4°FduringthemonthsofAprilthroughOctoberand9.0°FduringthemonthsofNovemberthroughMarchasaveragedovera24-hourperiod.The temperature ofthewaterthat isdischargedintotheriveralsocannotfluctuatebymorethan3.6°F duringanyhour.Holdingpondsaresometimes sufficienttocoolthe watertothedesiredtemperature.

However,itisoften necessarytocoolthiswaterfurtherineitheroftwocoolingtowers,whicharedesignatedastheUnit#1coolingtower(Certificate

-01C)andtheUnit#2 coolingtower(Certificate

-03C).Inaddition, reintroduction ofthewaterintotherivercannotresultinthedownstream rivertemperature exceeding anaverageof86.9°Fovera24-hourperiodunlessthewaterisbeingcooledinonecoolingtowerperoperating reactorunit.Watermistthatisemittedfromthetwo coolingtowerscontainsentrained particulatematter.These particulate emissions areuncontrolled andoriginatefromdirt,silt,etc.intheriverwater.

Foreachofthetworeactorunits,theinitialhigh-pressure turbineandthetwo feedwater pumpturbinesareeachsuppliedwithlubricatingoilbyanoil recirculationsystem.In

addition, theelectricity generator ofeachunitis suppliedwithsealoilbyanoil recirculationsystem.Each oftheseeight recirculation systemsincludesanoilreservoirthatisequippedwithanoil vaporextractor.

Theextractors servetoventoilvaporfromtheairspace abovetheoilreservoirs.

Eachoftheeightoilvaporextractorsalsoservestoremove waterfromtheoilthatresultsfrom inadvertent contactbetweentheoilandsteam.

Hydrogengasisusedtocoolthebearingsofthetwoelectricity generators,andtheoil vaporextractorforthesealoil reservoir ofeachgeneratoralsoservesto removedissolved hydrogenfromtheoil.

Hydrogenisnotconsideredtobeanair pollutant.

Particulate emissions ofoilmist,whichisaVOC,resultfromeachoftheeightoilvaporextractors.Theoilmistemissionsfromtheextractorfortheoil reservoir oftheinitialhigh-pressure turbineofeachunitarecontrolledbyademister,andtheoil mistemissions fromtheothersixoilvaporextractors areuncontrolled.

Oilvaporextractors forcoal-fired steamgenerating facilities areclassified asinsignificant activities inaccordance with§8(a)(l)a.

However,becausesuchextractors fornuclear-powered steamgenerating facilitiesarenotspecifically listedasinsignificantactivities,TVAhasbeen informedthatinstallationpermitsand initialcertificates ofoperationwillbeissuedfortheUnit#1and Unit#2oilvaporextractors.

Tennessee ValleyAuthority

-SequoyahNuclearPlantPage2 Ifbothnuclearreactorunitsarenotinoperation, eitherAuxiliary BoilerAorB(Certificate

-08C)couldbeusedtopreheatwaterforthesteamgeneratorsinpreparationforstartingupone ofthereactorunits.Theboilerwouldthenbeshut offwhenthereactorcomesonline.Inaddition, eitherofthesetwoidentical boilerscouldbeusedasneededtoheattheturbinebuildinginordertokeepwaterinpipesfromfreezingduringthewintermonths ifbothreactorunitsarenotinoperation.Theauxiliaryboilersarenotnormallyused,however,becauseatleast oneofthetworeactorunitsshouldbeinoperationatanytime.Thetwo boilersarefueledexclusivelybydieselfuel(No.2fueloil).Theyhadbeenfueledbylow-sulfurdieselfuel,andultra-lowsulfurdieselfueliscurrentlyavailableforuseinthem.Emissionsthatresultfromfuel combustionintheboilersareuncontrolled,andtheyareventedtoasingleexhauststack.EmergencyGenerators1A,IB,2A,and2B (Certificate

-11C)areavailabletoprovideelectricpowerforsafelyshuttingdownthenuclearreactorsintheunlikelyevent ofalossofoff-sitepowertotheplant.Inaddition,"Blackout"Generators1and2areavailableforasimilarpurpose.Onlyone emergencygeneratorwouldbeneededperoperatingreactor.Emergency Generators 1AandIBserveReactorUnit#1,andReactorUnit#2isservedbyEmergencyGenerators2Aand2B.Each ofthefouridenticalemergencygeneratorsandtwoidenticalblackoutgeneratorsispoweredbyaninternal-combustionenginethatisfueledexclusivelybydieselfuel.Theywerepreviouslyfueledbylow-sulfurdieselfuel,andultra-lowsulfurdieselfuelisusedinthematpresent.Emissionsthatresultfromfuelcombustioninthemareuncontrolled.Each oftheenginesforthefouremergencygeneratorsisequippedwithtwoexhauststacks.Therehasneverbeenanunintendedloss ofpowerthatrequiredtheuse ofanyofthesixgenerators, althoughtheyareperiodically operatedfortestpurposes.Intheevent ofalossofpowertotheplant,sevenothergeneratorsareavailabletoprovideelectricpowerforspecificneeds.Thesesevengenerators,alongwithfourwaterpumps,areeachpoweredbyasmallinternal-combustionenginethatisfueledexclusivelybydieselfuel.Low-sulfiirdieselfuelwas previouslyusedinthem,andtheyare currentlyfueledbyultra-lowsulfurdieselfuel.Most ofthemareperiodicallyoperatedfortestpurposes,andemissionsthat resultfromfuelcombustion inthemareuncontrolled.

Dieselfuelisburnedinthelargestoftheseelevenenginesatamaximumrateof31.1gal/hr(4.26 MMBtu/hr),andeachofthemisnotrequiredtobepermitted inaccordance with§4-8(d)(3).

Twobandsaws(Certificate

-06C)areusedtocut insulationtofitvariouscomponents attheplant.These componentsincludepipingandpressurevessels.Thetwosawsareprimarilyusedtocut calciumsilicate(CaSiC>3) insulation,buttheycanalsobeusedtocutothertypes ofinsulationmaterial,suchasrubber.Nomaterialcontainingasbestosisevercutbyeither ofthesesaws.InsulationSawAisused primarily.

InsulationSawBisnot currentlyused,butitisavailableforuseasabackupunit.ForSawA,particulateemissionsfromalargesuctionhosethatismountedneartheworkingsectionofthebandsawbladeare controlledbyaprefilterfollowedbyaHEPA (high-efficiencyparticulateair)filter.ParticulateemissionsfromahoodthatisoverthissawarealsocontrolledbyaprefilterfollowedbyaHEPAfilter.ThesetwoHEPAfiltersareventedtoasingleexhausthose.ForSawB,threeprefiltersinparallelfollowedbythreeHEPAfiltersinparallelareusedtocontrolparticulateemissionsfromalargesuctionhosethatis positionedneartheworkingsection ofthebandsawblade.Inaddition,foreach ofTennesseeValleyAuthority-SequoyahNuclearPlantPage3 SawsAandB,asettlingdrumfollowedbyabagfilterisusedtocontrolparticulateemissions fromeachoftwosuctionventsthatarebothlocatedundertheworktableandadjacenttothebandsawblade.Acarpentershop (Certificate

-09C)containstworadial-armsaws,atablesaw,abandsaw,andaplaner.Particulateemissions ofsawdustfromall ofthesepieces ofwoodworkingequipmentarecontrolledbyabaghouse.Thisbaghouseisalsousedtocontrolparticulate emissions fromtwofloorventsthatsawdustissweptinto.Abrasiveblasting(Certificate-IOC)ofsheetmetalisperformedwithinalarge enclosedroomusingamanualnozzle.Boilerslag,underthetradenameofBlackBeauty,isusedastheabrasive.Particulateemissionsfromthisoperationarecontrolledbyafilterpanel.Tentestweldingboothsareoccasionallyusedfortrainingpurposes.Stick,TIG(tungsteninertgas),andMIG(metalinertgas) weldingisperformedinthesebooths,anduncontrolled particulate emissionsfromtheseboothsare ventedtoasingleexhauststack.Inaddition,asawisusedtocutsmallsections ofsteelpipethathavebeenweldedintheboothsinordertotestthe integrity ofthewelds.ParticulateemissionsofsteeldustfromthissawarecontrolledbyaHEPAfilter.Maintenanceweldingisaninsignificantactivity,andbecausethetestweldingboothsandsawareusedonlyinconjunctionwithtrainingworkerstoperformmaintenancewelding,theyarealsoclassifiedasinsignificantactivitiesinaccordancewith§8(a)(l)a.

Evaluation 4150-30600701-01C Unit#1CoolingTower 4150-30600701-03C Unit#2CoolingTowerTheUnit#1andUnit#2coolingtowerswerenotinoperationatthetime oftheinspection.ReactorUnits#1and#2werebothonline.Bothcoolingtowersappearedtobein goodcondition.

Eachofthetwocoolingtowerswasusedfor814hoursduring calendaryear2009.The estimated particulate emissionsfromeachofthesetowersaregiveninTableIattheend ofthissection.The potential emissionsarebasedon continuous operation.

Installation oftheUnit#1and#2coolingtowerswas completedin1980.The particulate emissionsfromeachofthetwocoolingtowersarelimitedbyRule10.3 (Schedule2)to115.2 lbs/hr,basedonaprocessweightof139,690tons/hr.This limitationismorestringentthantheRule10.7particulate emissionlimitof0.25gr/scf(85,760lbs/hr)foreachtower.However,amorestringentparticulateemissionlimitation of7.2lbs/hrhasbeenpreviouslyestablishedforeachtowerbecauseithasbeendeterminedthatoperationattheRule10.3allowableemissionratewouldresultinthe creationofaparticulate non-attainment area.TennesseeValleyAuthority-SequoyahNuclearPlantPage4 4150-30700804-06C Insulation SawsAandBInsulationSawAwasnotinoperationatthetime oftheinspection,andInsulationSawBisnotcurrentlyinuse.SawAanditstwoprefilters,twoHEPAfilters,twosettlingdrums,andtwobagfiltersandSawBanditsthreeprefiltersandthreeHEPAfiltersappearedtobeingoodcondition.ThetwosettlingdrumsandtwobagfiltersforusewithSawBwerenotinposition, andtheywillbereplacedbeforethesawisusedagain.SawAisusedforanaverage of4hrs/day,5days/wk,and6wks/yr.SawBwaslastoperatednolaterthanin2003.EachHEPAfilterhasanestimatedparticulatecontrol efficiency of99.9%.Eachsettlingdrumandbagfilterinseriesisestimatedtobe94%efficientin controlling particulate emissions.Theestimatedparticulateemissionsfromeach ofthetwosawsaregiveninTableI.Theseemissionsareconservativelybasedoncontrolonlybyasettlingdrumfollowedbyabagfilter.Thepotentialemissionsarebasedoncontinuousoperation.InsulationSawAwasinstalledin1989.TheparticulateemissionsfromthissawarelimitedbyRule10.3(Schedule2)to0.49lb/hr,basedonaprocessweight of80lbs/hr.Inaddition,theparticulateemissionsfromeach oftheexhaustpoints ofthissawarelimitedbyRule10.7to0.25gr/scf.Thislimitationisequivalentto0.39lb/hrforeach ofthetwobagfilters.

Thislimitation cannotbeconverted intounitsoflbs/hrforthesetofHEPAfiltersbecausetheexhaustflowratethroughthefiltersisnotavailableatthistime.

Insulation SawBwasinstalled inabout1988.However,asof2005,Insulation SawBwentfortwoyearswithoutbeingoperated,anditwasnolongerconsideredtobeanexisting sourceatthattime,inaccordance with§8(c)(l).

Potential particulate emissions fromSawB,beforebeingcontrolled,are estimatedtobe9.7tons/yr.Therefore,theparticulateemissionsfromthissaware subjecttoRule27.3.Control oftheseemissionsbyasettlingdrumfollowedbyabagfilterhasbeen determinedtobereasonableandproper,in accordancewithRule27.3.Anappropriate reasonableandproperlimitationfortheparticulateemissionsfromSawBhas beenpreviously determinedtobe0.20lb/hr.ThislimitationismorestringentthanboththeRule 10.3(Schedule 2)particulate emissionlimitof0.49lb/hr,basedona processweightof80lbs/hr,andtheRule10.7 particulate emissionlimitof0.25gr/scf,whichis equivalentto0.39lb/hrfor eachofthetwobagfilters ofthissaw.TheRule10.7limit cannotbeconvertedintounits oflbs/hrfortheset ofHEPAfiltersofthissawbecausetheexhaustflowratethroughthefiltersis notavailable atthistime.4150-10200501-08C Auxiliary BoilersAandBAuxiliaryBoilersAandBarenotcurrentlyinuse.Thesetwoboilers appearedtobeingoodcondition.Therequiredcertifications ofdieselfuelsulfurcontentandtherequiredlogs ofdailyhours ofoperationandmonthlydieselfuelusageforeachboilerwerebeingmaintained.TennesseeValleyAuthority-SequoyahNuclearPlant Page5 Eachofthetwoboilershasaratedcapacity of54.5MMBtu/hr.Theyarenormallynotinuse.BoilerAwaslastoperatedbriefly(22minutes)fortestpurposesonSeptember 16,2004,andBoilerBwaslastoperatedonNovember14,2000.Theyarefueledexclusivelybydieselfuelthathasaverageandmaximumsulfurcontents of0.0015%and0.06%byweight, respectively.Theestimatedemissions ofparticulate (PM25,PMio,andtotal),NOx,SOx,CO,VOCs,methane,andC02(actualandC02e)thatresultfromdieselfuelcombustioninthetwoboilerscombinedaregiveninTableIIattheend ofthissection.TheseemissionswerecalculatedbyusingAP-42(1998)emission factors.Thepotentialemissionsarebasedon simultaneousoperationofthetwoboilersattheirrated capacitieswhileburningdieselfuelthathasthemaximumsulfurcontent.Thepotentialemissionsarealsobasedonthesum ofthetotalamountoftimethatBoilerAisin operationandthetotal amountoftimethatBoilerBisin operationbeingequalto2,000hrs/yr.47.0%and69.7%

oftheparticulate emissionsthatresultfromburningdieselfuelintheboilersare PM2.5andPM10,respectively.TheVOCemissionsthatresultfromdieselfuelcombustionintheboilersconsist ofupto28.4%

formaldehyde (methanal, H2CO),whichisaHAP.Allofthesepercentageswere determinedbyusingAP-42(1998)emission factors.AuxiliaryBoilersAandBwereinstalledin1976.However,as ofNovember15,2002,thetwoboilerswentfortwoyearswithoutbeing operated,andtheywerenolonger considered tobeexisting sourcesatthattime,in accordancewith§8(c)(l).Theseboilersare therefore subjecttotheprovisions of"Standards ofPerformance forSmallIndustrial-Commercial-InstitutionalSteamGeneratingUnits"[40CFRPart60,SubpartDc(§60.40c-48c)],asadoptedatRule15.

§60.42c(d) ofSubpartDcstipulatesthatnofuelshallbeburnedineitherboilerthathasasulfur contentofgreaterthan0.5%byweight.

Reporting andrecordkeeping requirementsaregivenin

§60.48cofthissubpart.Potential NOxemissions fromeachofBoilersAandBareestimatedtobe7.956lbs/hr.AnappropriateNOxemissionlimitationforeachofthetwoboilershasbeenpreviouslydeterminedtobe9.0lbs/hr.Anappropriatelimitationhasalsobeenpreviouslydeterminedtobethatthesum ofthetotalamount oftimeduringwhichBoilerAisin operationandthetotal amountoftimeduringwhichBoilerBisinoperationshallnotexceed2,000hrs/yr.TheseNOxemissionandoperationallimitationsresultinanappropriateNOxemissionlimitation of9.0tons/yrforthetwoboilerscombined.TVArequestedall oftheselimitationsinordertoqualifyasasynthetic minorsource.The potentialemissionsthataregiveninTableIIarebasedupon theoperational limitation.

Potential particulate emissionsfromeachofBoilersAandBare estimatedtobe1.313 lbs/hrand5.7tons/yr,basedoncontinuous operation.

Therefore, theparticulate emissions fromtheseboilersaresubjecttoRule27.3.An appropriate reasonable andproperlimitation, inaccordancewithRule27.3,forthe particulate emissionsfromeachofBoilersAandBhasbeen previously determinedtobe0.030 lb/MMBtu,whichisequivalentto1.64lbs/hrforeachboilerwhileitis operatingatitsratedcapacity.Nocontrolsarenecessaryinordertoachievethis Tennessee ValleyAuthority-SequoyahNuclearPlantPage6 limitation foreitherboiler.This limitation isequivalenttotheparticulate emissionlimitthat,althoughnotapplicabletothetwoboilers,isstipulatedby

§60.43c(e)(l) ofSubpartDc.This limitationismorestringentthantheRule8.2(Schedule2) particulate emissionlimitof12.72lbs/hrforeachboiler.Thislimitationisalsomorestringent thantheRule26.6(RACT)particulate emissionlimitof0.15864lb/MMBtu,which,althoughitisnotapplicabletothetwoboilers,is equivalentto8.65lbs/hrforeachboilerwhileitis operatingatitsratedcapacity.AnappropriatesulfurcontentlimitationforthedieselfuelthatisburnedinBoilersAandBhasbeenpreviouslydeterminedtobe0.06%byweight.TVArequestedthislimitationinordertoqualifyasasyntheticminorsource.Combustion ofdieselfuelwiththemaximumallowablesulfurcontentineither boileratitsratedcapacityresultsinpotentialSOxemissions of3.44lbs/hr.ThisSOxemissionrateistheeffective SOxemissionlimitation foreachboiler.ThislimitationismorestringentthantheRule13.2 SO2emissionlimit of4lbs/MMBtu,whichisequivalentto218.0lbs/hrforeach ofthetwoboilerswhiletheyareoperatingattheirrated capacities.TheVOCemissionsfromBoilersAandBaresubjecttoBACT(Rule25.3).IthasbeendeterminedthatnocontrolsarenecessaryinordertosatisfyBACTfortheseemissions,andnoquantitativeBACTVOCemissionlimitationsarenecessary.Nolimitationsareapplicablefor theemissions ofCO,methane,andCO2fromeitherofthetwoboilers.4150-30703099-09C Carpenter ShopNoneoftheequipment ofthecarpentershopwasinoperationatthetime oftheinspection.Thetwo radial-armsaws,tablesaw,bandsaw,planer,twofloorvents,andbaghouse appearedtobeingoodcondition.

Thecarpentershopisoperatedforapproximately4hrs/day,5days/wk,and6wks/yr.

Thebaghousehasanestimated particulatecontrolefficiency of99%.Theestimated particulate emissionsfromthiscarpentershoparegiveninTableI.The potential emissions arebasedoncontinuous operation.

Thecarpenter shopwasinstalledinMay1995.The particulate emissionsfromthiscarpentershoparelimitedbyRule10.3(Schedule2)to1.42lbs/hr,basedonaprocessweight of450lbs/hr.This limitationismorestringentthantheRule10.7 particulate emissionlimitof0.25gr/scf(3.43lbs/hr).4150-30900203-10C AbrasiveBlastingOperationAbrasiveblastingwasnotbeingperformedatthetime oftheinspection.Theroomthatit isperformedinandthefilterpanelappearedtobeingoodcondition.

Tennessee ValleyAuthority

-SequoyahNuclearPlantPage7 Theabrasiveblastingoperationisusedforapproximately3hrs/day,5days/wk,and8 wks/yr.Abrasiveisblastedatarateofapproximately500lbs/hr.Thefilterpanelhasan estimated particulate controlefficiency of95%.Theestimated particulateemissionsfromthisoperationaregiveninTableI.Theseemissionswere calculatedbyusinganAP-42(1997)uncontrolledparticulateemissionfactor of0.027poundperpound ofsandmultipliedby(0.010poundperpound ofabrasive)/(0.041poundperpoundofsand),whichisaratio ofSCAQMDuncontrolledparticulateemissionfactors.The potential emissions arebasedoncontinuous operation.Theabrasiveblastingoperationbegantobeusedin1996,andpotentialparticulateemissionsfromit,beforebeingcontrolled,areestimatedtobe14.4tons/yr.Therefore,theparticulateemissionsfromthisoperationaresubjecttoRule27.3.Control oftheseemissionsbyafilterpanelhasbeendeterminedtobereasonableandproper,inaccordancewithRule27.3.Anappropriatereasonableandproperlimitationfortheparticulateemissionsfromthisoperationhasbeenpreviouslydeterminedtobe0.30lb/hr.ThislimitationismorestringentthanboththeRule10.3(Schedule2)particulateemissionlimit of1.52lbs/hrandtheRule10.7particulateemission limitof0.25gr/scf(55.71lbs/hr).4150-20200102-11CEmergencyGenerators1A,IB,2A,and2Band BlackoutGenerators1 and2EmergencyGenerators1A,IB,2A,and2BandBlackoutGenerators1and2werenotinoperationatthetime oftheinspection.Generators1Aand2Aand BlackoutGenerators1and2appearedtobeingoodcondition.GeneratorsIBand2Bcouldnotbeviewedbecause ofatemporarysecurityrestriction.Therequiredcertifications ofdieselfuelsulfurcontentandthe requiredlogofdailyhoursofoperationforeachofthegenerators werebeingmaintained.Thefouremergency generatorseachhavearated capacityof38.4MMBtu/hr,andtheyareeachnormallytestedataheatinputrate ofabout34.25 MMBtu/hr.

Eachofthetwoblackout generators isnormallytestedat50%ofitsratedcapacity of18.5MMBtu/hr.Thesixgeneratorsarefueled exclusivelybydieselfuelthathasa maximumsulfurcontentof0.06%byweight.Thesixgenerators arenormallyoperatedonlyduringtesting.

Duringthetwelve-monthperiodfromApril 1,2009,throughMarch31,2010,annualtestingtimeswere60.4hoursfor Generator1A,40.9hoursforGenerator IB,66.7hoursforGenerator 2A,72.4hoursforGenerator 2B,4.7hoursforBlackoutGenerator 1,and5.0hoursforBlackoutGenerator 2.Thelow-sulfurdieselfuelthatwasburnedinthesix generatorsduringthisperiodhadanaveragesulfurcontent of0.05%byweight.Theultra-lowsulfurdieselfuelthatiscurrentlyusedhasanaveragesulfur contentof0.0015%byweight.Theestimatedemissions ofparticulate (PM25,PM10,andtotal),NOx,SOx,CO,VOCs,methane,and CO2(actualandC02e)thatresultfromdieselfuelcombustioninthesix generatorscombinedaregiveninTableII.Theseemissionswerecalculatedbyusingemissionfactorsfrom TennesseeValleyAuthority-SequoyahNuclearPlantPage8 AP-42(1996)Table3.4-2forparticulate; AP-42(1996)Table3.4-1 forNOx,CO,VOCs,methane,andCO2;and AP-42(1998)Table1.3-1forSOx.The potential emissions arebasedonsimultaneousoperation ofthesixgeneratorsattheirratedcapacitiesfor204hrs/yrwhileburningdieselfuel thathasthemaximumsulfurcontent.

AccordingtoAP-42(1996) emissionfactors,79.8%and82.2%

oftheparticulateemissionsthatresultfromburningdieselfuelinthe generators arePM2.5andPMio,respectively.EmergencyGenerators1A,IB,2A,and2Bwereinstalledin1972,andBlackout Generators 1and2wereinstalled in2004.Potential NOxemissions areestimated tobe122.880lbs/hrfromeach ofthefouremergencygeneratorsand59.200lbs/hrfromeach ofthetwoblackoutgenerators.AnappropriateNOxemissionlimitationforeach ofthefouremergencygeneratorshasbeenpreviouslydeterminedtobe140.0lbs/hr(2,242ppm).AnappropriatelimitationfortheNOxemissionsfromeach ofthetwoblackoutgeneratorshasbeenpreviouslydeterminedtobe68.0lbs/hr(1,687ppm).Anappropriatelimitationhasalsobeenpreviouslydeterminedtobe204hrs/yrforthetime ofoperation ofeachofthesixgenerators.ThisoperationallimitationismorestringentthantheRule2.7limit of20days/yr(480hrs/yr)forthe operation ofanygeneratorthatemitsmorethan1,500ppm ofNOx.Rule2.7alsolimitsthe operation ofsuchgeneratorstonomorethan5consecutivedays.TheNOxemissionlimitationsandoperationallimitationresultinanappropriateNOxemissionlimitation of70.992tons/yrforthesixgeneratorscombined.TVArequestedall oftheselimitationsinordertoqualifyasasyntheticminorsource.ThepotentialemissionsthataregiveninTableIIIarebaseduponthe operational limitation.

Potential NOxemissionsfromthecombinedelevensmallinternal-combustion enginesthatarenotrequiredtobepermittedareestimatedtobe16.145tons/yr,basedonoperationfor480hrs/yr(theRule2.7limitation).TheseemissionswerecalculatedbyusingemissionfactorsfromAP-42(1996)Table3.3-1.Thesum ofthesepotentialNOx emissions,theallowableNOx emissions of9.0tons/yrforAuxiliaryBoilersAandBcombined(Certificate-08C),andtheallowableNOx emissions of70.992tons/yrforthesix permitted generators combinedis96.137tons/yr,whichis belowthePart70majorsourcethresholdforNOxemissions of100tons/yr.

Potential particulate emissionsfromeachofEmergency Generators 1A,IB,2A,and2Bareestimatedtobe2.676lbs/hr.Theparticulate emissions fromeachofthesegenerators arelimitedbyRule10.2 (Schedule1)to4.07lbs/hr, basedonaprocessweightforeachgenerator of1,976lbs/hr(38.4 MMBtu/hr-s-0.137MMBtu/galx7.05lbs/gal).This limitationismorestringentthantheRule10.7 particulate emissionlimitof0.25gr/scf(18.75lbs/hr)foreach emergency generator.

Potential particulate emissionsfromeachofBlackoutGenerators1and2areestimated tobe1.289lbs/hrand0.31ton/yr,basedonoperationfor480hrs/yr(theRule2.7limitation).Therefore,theparticulateemissionsfromthesegeneratorsaresubjecttoRule27.3.Anappropriatereasonableandproperlimitation,inaccordancewithRule27.3,fortheparticulateemissionsfromeach ofBlackoutGenerators1and2hasbeenpreviouslydeterminedtobe1.80lbs/hr.Nocontrolsarenecessaryinordertoachievethislimitationforeithergenerator.ThislimitationismorestringentthanboththeRule10.3(Schedule2)particulateemissionlimit ofTennessee ValleyAuthority

-SequoyahNuclearPlantPage9 2.27lbs/hr,basedonaprocessweightforeachblackoutgenerator of952lbs/hr(18.5MMBtu/hr-0.137MMBtu/galx7.05lbs/gal),andtheRule10.7 particulate emissionlimitof0.25gr/scf(12.10lbs/hr)foreachblackoutgenerator.

Anappropriate limitationforthesulfurcontentofthedieselfuelthatisburnedinthesixgenerators hasbeenpreviously determinedtobe0.06%byweight.TVArequested thislimitation inordertoqualifyasasynthetic minorsource.Combustion ofdieselfuelwiththemaximumallowable sulfurcontentinthesixgeneratorsattheirrated capacitiesresultsin potential SOxemissions of2.422lbs/hrforeachofthefouremergency generatorsand1.17lbs/hrforeachofthetwoblackoutgenerators.TheseSOxemissionratesarethe effective SOxemissionlimitationsforthesix generators.

Theselimitations aremorestringent thantheRule13.1SO2emissionlimitsof500ppm(43.5lbs/hr)foreach emergency generatorand500ppm (28.1lbs/hr)foreachblackoutgenerator.

TheVOCemissions fromthetwoblackoutgenerators aresubjecttoBACT(Rule25.3).Ithasbeendetermined thatnocontrolsarenecessary inordertosatisfyBACTfortheseemissions,andnoquantitativeBACTVOCemissionlimitationsarenecessary.Theemissions ofCO,methane,andCO2fromthetwo blackoutgenerators aresubjecttoRule23.Ithasbeen determined thatnocontrolsarenecessaryinordertosatisfy reasonable andpropercontroltechnology, inaccordance withRule23,forthese emissions ofCO,methane,andCO2,andno quantitative reasonable andproperlimitations arenecessaryfortheseemissions.Inaddition,no limitations areapplicablefortheemissions ofCO,VOCs,methane,andCO2fromany ofthefouremergency generators.TableI.Facility-Wide ProcessEmissions ofParticulateMatter

^^il^JliliiBl iiBiiiil1111Allowable mUnit#1CoolingTower(-01C)2.8987.12031.1867.2Unit#2CoolingTower(-03C)2.8987.12031.1867.2Insulation SawA(-06C)0.00800.1330.5830.49Insulation SawB(-06C)-0-0.1330.5830.20Carpenter Shop(-09C)0.00540.0900.3941.42AbrasiveBlasting(-10C)0.0100.1650.7210.30TotalParticulate 5.81914.76164.65216.81Tennessee ValleyAuthority

-SequoyahNuclearPlantPage10 TableIIEmissionsfromtheTwoAuxiliary BoilersandSixGenerators Pollutant ActualEmissions tons/yrPotential Emissionslbs/hrtons/yr mmMm(miM^Ž^w^^^

Allowable Emissionslbs/hrtons/yr m^mpg^flC44H'

£*£.-<<£TwoAuxiliary Boilers(-08C)1.233FourEmergency Generators

(-11C)0.2298.540TwoBlackoutGenerators

(-11C)0.00252.057TotalPM2.50.23111.831TwoAuxiliary Boilers(-08C)-0-1.830FourEmergency Generators

(-11C)0.2368.801TwoBlackoutGenerators

(-11C)0.00262.120TotalPM100.23812.751i?^.;lj/i#^^-M-^lf;pf^

TwoAuxiliary Boilers(-08C)-0-2.626FourEmergency Generators

(-11C)0.28710.706TwoBlackoutGenerators

(-11C)0.00312.579TotalParticulate 0.29015.910TwoAuxiliary Boilers(-08C)-0-15.912FourEmergency Generators

(-11C)13.174491.520TwoBlackoutGenerators

(-11C)0.144118.400TotalNOx13.317625.832TwoAuxiliary Boilers(-08C)-0-6.874FourEmergency Generators

(-11C)0.2169.687TwoBlackoutGenerators

(-11C)0.00242.333TotalSOx0.21918.894*Basedonsumofoperation ofBoilerAandoperation ofBoilerBof2,000hrs/yrtBasedonoperation for204hrs/yrTennesseeValleyAuthority-Sequoyah NuclearPlant0.617*3.281.640.871t16.281.660.210t3.600.371.69823.163.670.915*3.281.640.898t16.281.660.216t3.600.372.02923.163.671.313^3.281.641.092t16.281.660.263?3.600.372.66823.163.67S^SiS7.956"18.09.0050.135t560.057.1212.077t136.013.8770.168714.079.993.437*6.883.440.988t9.690.990.238t2.340.244.66318.914.67Page11 TableILEmissionsfromthe TwoAuxiliaryBoilersandSix Generators (continued)

Pollutant TwoAuxiliary Boilers(-08C)FourEmergency Generators

(-11C)TwoBlackoutGenerators

(-11C)TotalCOActualEmissions 3.4990.0383,537Potential Emissions lbs/hr3.9781.989s*130.56013.317t31.4503.208t165.98818.514jjftgBfij^^

TwoAuxiliary Boilers(-08C)-0-0.159FourEmergency Generators

(-11C)0.33712.580TwoBlackoutGenerators

(-11C)0.00373.030TotalVOCs0.34115.769TwoAuxiliaryBoilers(-08C) 0.041FourEmergency Generators

(-11C)0.0331.244TwoBlackoutGenerators

(-11C)0.000360.300TotalMethane0.0341.585nTwoAuxiliary Boilers(-08C)-0-17,742.3FourEmergency Generators

(-11C)673.525,129.0TwoBlackoutGenerators

(-11C)23.56,053.2TotalC02697.048,924.5TwoAuxiliary Boilers(-08C)-0-17,807.3FourEmergency Generators

(-11C)674.225,155.1TwoBlackoutGenerators

(-11C)23.56,059.5TotalC02e697.749,021.9*Basedonsumofoperation ofBoilerAandoperation ofBoilerBof2,000hrs/yrtBasedonoperation for204hrs/yrTennessee ValleyAuthority

-SequoyahNuclearPlant 0.080s11.283t0.309t1.6720.021s0.127t0.03It0.1788,871.2*2,563.2t617.4t12,051.78,903.7*2,565.8t618.lt12,087.6'^lEnns^ppt^

Ibs/hpj6t0y^n/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/aIgjgl^tSn/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/an/aPage12 ConclusionsTheUnit#1 coolingtower(Certificate-01C)andUnit#2coolingtower(Certificate-03C)were determinedtobeincompliancewith§41,Rule3 (visibleemissions),Rule10(particulate emissions),andRule12(odor) oftheHamiltonCountyAir Pollution ControlRegulation (theRegulation).

InsulationSawA(Certificate-06C)andthe carpenter shop(Certificate-09C)were determinedtobeincompliancewith§41,Rule3(visible emissions)andRule10(particulate emissions) oftheRegulation.

InsulationSawB(Certificate-06C)andtheabrasive blastingoperation(Certificate-IOC)weredeterminedtobeincompliancewith§41,Rule27.3(reasonableandproperparticulateand visibleemissions) oftheRegulation.AuxiliaryBoilersAandB(Certificate-08C)weredeterminedtobeincompliancewith§41,Rule12(odor),Rule13(S02emissions),Rule15("Standards ofPerformanceforSmall Industrial-Commercial-Institutional SteamGenerating Units"),Rule25.3(BACTVOCemissions),andRule27.3 (reasonableandproperparticulateandvisible emissions) oftheRegulation.EmergencyGenerators1A,IB,2A,and2B(Certificate-11C)weredeterminedtobeincompliancewith§41,Rule2(NOxemissions),Rule3(visibleemissions),Rule10(particulate emissions),Rule12(odor),andRule13(SO2 emissions) oftheRegulation.

BlackoutGenerators1and2(Certificate-11C)were determinedtobeincompliance with§41,Rule2(NOxemissions),Rule12(odor),Rule13(S02emissions),Rule23(reasonableandpropergaseousemissions),Rule25.3(BACTVOCemissions),andRule27.3(reasonableand properparticulate andvisibleemissions) oftheRegulation.

Tennessee ValleyAuthority-SequoyahNuclearPlantPage13 Recommendations

{fromSeptember24,2007,annualinspectionreport)

Irecommend thatCertificates ofOperation No.-01C,-03C,-06C,-08C,-09C,-IOC,and

-1ICberenewed.TVA SequoyahNuclearPlantisasyntheticminorsource,and CertificatesNo.-08Cand-1 ICarefederally enforceable.

Eachofthesecertificates shouldbevalidfora periodoffiveyearsand shouldexpireonJuly17,2012.Thefollowingspecial conditions shouldapply.4150-30600701-01C1.Themaximumallowable emissions ofparticulate matterfromtheUnit#1 coolingtowerare7.2pounds/hour.2.VisibleemissionsfromtheUnit#1coolingtowershallnotexceedtwenty(20)percent opacityforanaggregate ofmorethanfive(5) minutesinanyperiodofonehourormore thantwenty(20)minutesinanyperiodoftwenty-fourhours,inaccordancewith§41,Rule3,the HamiltonCountyAirPollution ControlRegulation (theRegulation).

3.TestingoftheUnit#1coolingtowertodeterminethe opacityoftheemissionsmayberequiredbythe

Director, theChattanooga-HamiltonCountyAir PollutionControlBureau (theBureau).Ifrequired,thistestshall,ata minimum,consistofandbeperformed inaccordancewithEPATest Method9,Title40 CodeofFederalRegulationsPart60,AppendixAandinaccordance with§3,theRegulation.

4.IftheUnit#1 coolingtoweroperatesinsuchamannerastoviolateanyoftherequirements contained inthesespecialconditions, theowneroroperatorshallpromptlynotifytheBureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)daysoftheonset,inaccordance with§12(e),theRegulation.

4150-30600701-03C1.Themaximumallowable emissions ofparticulate matterfromtheUnit#2coolingtowerare7.2pounds/hour.

2.Visibleemissions fromtheUnit#2coolingtowershallnotexceedtwenty(20)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiodofonehourormorethantwenty(20)minutesinanyperiodoftwenty-fourhours,inaccordance with§41,Rule3,the HamiltonCountyAirPollution ControlRegulation (theRegulation).

3.TestingoftheUnit#2 coolingtowertodeterminethe opacityoftheemissionsmayberequiredbytheDirector, theChattanooga-Hamilton CountyAirPollutionControlBureau (theBureau).Ifrequired,thistestshall,ata minimum,consistofandbeperformed inTennessee ValleyAuthority-SequoyahNuclearPlantPage14 accordance withEPATestMethod9,Title40 CodeofFederalRegulationsPart60,AppendixAandinaccordancewith§3,the Regulation.

IftheUnit#2coolingtoweroperatesinsuchamannerastoviolateanyoftherequirements containedinthesespecial conditions, theowneroroperatorshallpromptlynotifytheBureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)daysoftheonset,inaccordance with§12(e),theRegulation.

4150-30700804-06C1.Theparticulate matteremissionsourcesofInsulation SawAaretwosawbladesuctionvents,asuctionhose,andaventilation hood.Themaximumallowable emissions ofparticulate matterfromalloftheseemissionsourcescombinedare0.49pound/hour, inaccordance with§41,Rule10.3,the HamiltonCountyAirPollution ControlRegulation (theRegulation).2.Themaximumallowable emissions ofparticulate matterfromInsulationSawAare0.25 grainperstandardcubicfoot(gr/scf),

inaccordance with§41,Rule10.7,theRegulation.3.Theparticulate matteremissionsourcesofInsulation SawBaretwosawbladesuctionventsandasuctionhose.Particulate matteremissions fromeachoftheseemissionsourcesshallbeventedtoandcontrolledbyasettlingdrumfollowedbyabagfilteror otherpieceorpiecesofcontrolequipmentthathavean equivalent orgreaterparticulate mattercontrolefficiency.

Thecontrolequipmentshallbeusedandmaintained inaccordance withthemanufacturers' recommendations.

Foreachofthethreeemissionsourcesofthesaw,thesourceshallnotbe operatedifitscontrol equipmentisnotinuse.

Theserequirements arereasonable andproper,asdeterminedbytheDirector, theChattanooga-Hamilton CountyAirPollution ControlBureau(theBureau),inaccordance with§41,Rule27.3,theRegulation.4.Themaximumallowable emissions ofparticulate matterfromalloftheemissionsourcescombinedofInsulationSawBare0.20 pound/hour.

Thisemissionlimitation isreasonable andproper,asdeterminedbytheBureauDirector,in accordancewith§41,Rule27.3,the Regulation.5.Visible emissions fromInsulationSawAshallnotexceed twenty(20)percentopacityfor anaggregate ofmorethanfive(5)minutesinany periodofonehourormorethantwenty(20)minutesinany periodoftwenty-fourhours,inaccordancewith§41,Rule3,the Regulation.

6.Visibleemissions fromInsulationSawBshallnot exceedten(10)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiodofonehourormorethantwenty(20)minutesinany periodoftwenty-fourhours.ThislimitationisreasonableandTennesseeValleyAuthority-SequoyahNuclearPlantPage15 proper,asdeterminedbytheBureauDirector, inaccordance with§41,Rule27.3,theRegulation.7.Testing ofeitherInsulationSawAorBtodeterminethe emissions ofparticulate matterandtodetermine theopacityoftheemissionsmaybe requiredbytheDirector,the Chattanooga-HamiltonCountyAir PollutionControlBureau(theBureau).

Ifrequired,thesetestsshall,ata minimum,consistofandbeperformed inaccordancewithEPATestMethods1,2, 3,4,5,and9,Title40 CodeofFederalRegulationsPart60,AppendixAandinaccordance with§3,theRegulation.

8.IfInsulationSawAorBisusedinsucha mannerastoviolateany oftherequirements containedinthesespecialconditions,theowneroroperatorshall promptlynotifythe BureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)daysoftheonset,in accordancewith§12(e),the Regulation.

4150-10200501-08C1.Onlydieselfuel(No.2fueloil)maybe burnedinAuxiliary BoilersAandB.The sulfurcontentofthedieselfuelthatisburnedinthetwoboilersshallnotexceed0.06(zero pointzerosix)percentbyweight.(Each oftheseboilershasaheatinput capacityof54.5x106Btu/hour.)

2.BoilersAandBaresubjecttoandthepermittee shallcomplywith"Standards ofPerformance forSmallIndustrial-Commercial-Institutional SteamGenerating Units,"Title40CodeofFederalRegulationsPart60,SubpartDc(§60.40c-48c),

asadoptedat§41,Rule15,the HamiltonCountyAirPollution ControlRegulation (theRegulation).3.Foreach shipmentofdieselfuelthatisreceivedatthefacilityfor combustionineitherBoilerAandB,acertificationfromthesuppliershalldocumentitssulfurcontentandshallverifythatitcompliedwiththespecificationsforNo.2fueloilasdefinedbythe AmericanSocietyforTestingandMaterials inASTMStandardD396.Thesecertificationsshallbekeptonthepremisesandbeavailable forinspection byrepresentatives oftheChattanooga-HamiltonCountyAir Pollution ControlBureau(theBureau)uponrequestduringnormalbusinesshours.Each certificationshallbemaintainedfora periodoftwo(2)yearsafteritisreceived.Inaddition,asemiannualreportshallbe submittedtotheBureauDirectorthatconsists ofrecordsofthefuelsuppliercertificationsforallofthedieselfuelthatwas receivedatthefacilityfor combustion ineitherboilerduringeachreportingperiod ofsix(6)calendarmonths.ThereportingperiodsareJanuary1throughJune30andJuly1throughDecember31 ofeachyear.Each semiannualreportisduebythe30thdayfollowingtheend ofeachreportingperiod.These requirementsareinaccordancewith "Standards ofPerformanceforSmall Industrial-Commercial-Institutional SteamGenerating Units,"Title40CodeofFederalTennesseeValleyAuthority-SequoyahNuclearPlant Page16 Regulations Part60,SubpartDc,§60.42c(d)and(h)and

§60.48c(d),(e),(f),(i),and(j),

asadoptedat§41,Rule15,theRegulation.4.Alogshallbe maintained inwhichthequantity ofdieselfuelthatis burnedinBoilersAandBduringeachcalendarmonthisrecorded.Thislogshallbekeptonthe premisesandbeavailable forinspection byBureaurepresentatives uponrequestduringnormalbusinesshours.Theinformationinthislogshallbe maintainedforaperiodoftwo(2)yearsafteritsdate ofentry.These requirementsareinaccordance with"Standards ofPerformance forSmallIndustrial-Commercial-Institutional SteamGenerating Units,"Title40CodeofFederalRegulationsPart60,SubpartDc,§60.48c(g)and(i),asadoptedat§41,Rule15,theRegulation.

5.Emissions ofnitrogenoxides(NOx)fromBoilersAandB combinedshallnotexceed9.0tonsduringanyperiod of365consecutivedays.Compliancewiththisemission limitationshallbeaccomplished byadherencetothefollowing limitations:

a.Themaximumallowable emissions ofNOxfromeachofthetwoboilersare9.0pounds/hour.b.Thesumofthetotalamountoftimeduringwhich BoilerAisinoperationandthetotalamountoftimeduringwhichBoilerBisin operationshallnotexceed2,000 hour0 days <br />0 hours <br />0 weeks <br />0 months <br />sduringanyperiodof365consecutive days.6.Alogshallbe maintainedinwhichthedailyhours ofoperationforeachofBoilersAandBarerecorded.Thislogshallbekeptonthepremisesandbeavailablefor inspection byBureaurepresentativesuponrequestduringnormalbusinesshours.Theinformationinthislogshallbe maintainedforaperiod oftwo(2)yearsafteritsdate ofentry.7.AwrittenreportshallbesubmittedbyMay17 ofeachyearnotifyingtheBureauDirector ofthetotalnumberofhoursthateachofBoilersAandBwere operatedduringthepreceding twelve(12)months.8.Themaximumallowableemissions ofparticulatematterfromeach ofBoilersAandB are0.030poundper106Btu.Thisemissionlimitation isequivalent to1.64pounds/hourfortheoperation ofeachboileratitsheatinput capacity.Thisemissionlimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41, Rule27.3,theRegulation.

9.Visibleemissions fromBoilersAandBshallnot exceedten(10)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours.Thislimitationis reasonable andproper,as determinedbytheBureau

Director, inaccordancewith§41,Rule27.3,the Regulation.

TennesseeValleyAuthority-SequoyahNuclearPlantPage17 10.Visibleemissions fromBoilersAandBshallnot exceedtwenty(20)percentopacityonaverageinany periodofsix(6)minutes,exceptforonesix (6)-minute periodinanyperiodofonehourinwhichvisibleemissionsshallnotexceedtwenty-seven (27)percentopacityonaverage.This limitationisinaccordancewith "Standards ofPerformance forSmallIndustrial-Commercial-Institutional SteamGenerating Units,"Title40CodeofFederalRegulationsPart60,SubpartDc,§60.43c(c),as adoptedat§41,Rule15,the Regulation.11.Testing ofeitherBoilerAorBtodeterminetheemissions ofparticulatematter,sulfur dioxide(SO2),nitrogenoxides(NOx),andcarbonmonoxide(CO)andtodeterminethe opacityoftheemissionsmayberequiredbytheBureauDirector.

Ifrequired,thesetestsshall,ataminimum,consist ofandbeperformedinaccordancewithEPATestMethods1,2,3,4,5,6,7,9,and10,Title40 CodeofFederalRegulationsPart60,AppendixAandinaccordance with§3,theRegulation.

12.IfBoilerAorBoperatesinsuchamannerastoviolateany oftherequirementscontainedinthesespecialconditions,theowneroroperatorshallpromptlynotifytheBureauDirectorwithintwenty-fourhours oftheonsetoftheviolation,andawrittenreportshall besubmittedtotheBureauDirectorwithinseven(7)days oftheonset,in accordance with§12(e),the Regulation.13.TheTennesseeValleyAuthorityandtheBureaumutuallyagreetoreopenthisfederallyenforceablecertificate ofoperationuponpromulgation ofanynewfederalrequirementthatwouldbeapplicabletoeither ofthetwoauxiliaryboilers iftheeffectivedate oftherequirementisnotlaterthanthedateonwhichthiscertificateisduetoexpire.14.Thisfederallyenforceablecertificate ofoperationisnottransferablefromonepersontoanotherperson,orfromoneairpollutantsourcetoanotherairpollutantsource,orfrom onelocationtoanotherlocation.

4150-30703099-09C1.Theparticulatematteremissionsourcesofthecarpentershoparetworadial-armsaws,atablesaw,abandsaw,aplaner,andtwofloorvents.Themaximumallowableemissions ofparticulatematterfromalloftheseemissionsourcescombinedare1.42 pounds/hour,inaccordancewith§41,Rule10.3,theHamiltonCountyAirPollutionControl Regulation (theRegulation).2.Visibleemissionsfromthecarpentershopshallnotexceedtwenty(20)percentopacityforanaggregateofmorethanfive(5) minutesinanyperiodofonehourormorethantwenty(20)minutesinanyperiodof twenty-fourhours,inaccordancewith§41,Rule3, theRegulation.

Tennessee ValleyAuthority

-SequoyahNuclearPlantPage18 Testingofanyoftheemissionsources ofthecarpentershoptodeterminetheemissions ofparticulatematterandtodeterminetheopacity oftheemissionsmayberequiredbytheDirector,theChattanooga-HamiltonCountyAirPollutionControlBureau(theBureau).

Ifrequired,thesetestsshall,ataminimum,consist ofandbeperformedinaccordancewithEPATestMethods 1,2,3,4,5,and9,Title40 CodeofFederalRegulationsPart60,AppendixAandinaccordancewith§3,theRegulation.

Ifthecarpentershopisusedinsuchamannerastoviolateany oftherequirementscontainedinthesespecialconditions,theowneroroperatorshallpromptlynotifythe BureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)days oftheonset,in accordancewith§12(e),theRegulation.

4150-30900203-10C1.Particulatematteremissionsfromtheabrasiveblastingoperationshallbecontainedwithinanenclosureandventedtoandcontrolledbyafilterthatcompletelycoversanyexhaustintakeorbyanotherpiece ofcontrolequipmentthathasanequivalentorgreaterparticulatemattercontrolefficiency.Theblastingoperationshallnotbeused ifthefilterforanyexhaustintakeisnotinplace.Theserequirementsarereasonableandproper,asdeterminedbytheDirector,theChattanooga-HamiltonCountyAirPollutionControlBureau(theBureau),inaccordancewith§41,Rule27.3,theHamiltonCountyAir Pollution ControlRegulation(theRegulation).2.Themaximumallowable emissions ofparticulatematterfromtheabrasiveblasting operationare0.30pound/hour.Thisemission limitation isreasonableandproper,as determinedbytheBureauDirector,inaccordancewith§41,Rule27.3,theRegulation.

3.Visibleemissionsfromanyexhauststackthatservesthe abrasiveblastingoperation shallnotexceedten(10)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiodofonehourormorethantwenty(20)minutesinanyperiodoftwenty-four hours.Thislimitation isreasonable andproper,asdeterminedbytheBureauDirector, inaccordance with§41,Rule27.3,theRegulation.4.Visibleemissionsfromthebuildingorotherenclosurethattheabrasiveblastingoperationisperformedinshallnotexceedfive(5)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours.Thislimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41,Rule27.3,theRegulation.

5.Testingoftheabrasiveblastingoperation, ascontrolled, todetermine theemissions ofparticulate matterandtodetermine theopacityoftheemissionsmayberequiredbytheDirector,the Chattanooga-HamiltonCountyAirPollutionControlBureau(the Bureau).Ifrequired, thesetestsshall,ataminimum,consistofandbeperformed inaccordance Tennessee ValleyAuthority

-SequoyahNuclearPlantPage19 withEPATestMethods1,2, 3,4,5,and9,Title40 CodeofFederalRegulationsPart60,AppendixAandinaccordancewith§3,theRegulation.

Iftheabrasiveblastingoperationisperformedinsuchamannerastoviolateany oftherequirementscontainedinthesespecialconditions,theowneroroperatorshallpromptlynotifythe BureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawrittenreportshallbe submittedtotheBureauDirectorwithinseven(7)days oftheonset,inaccordancewith§12(e),theRegulation.

4150-20200102-1 IC1.Onlydieselfuel(No.2fueloil)maybeburnedinEmergencyGenerators1A,IB,2A, and2BandBlackoutGenerators 1and2.Thesulfurcontentofthedieselfuelthatisburnedinthesixgeneratorsshallnotexceed0.06(zeropointzerosix)percentbyweight.

(Theheatinputcapacities are38.4x106Btu/hourforeachofthefouremergency generators and18.5x106Btu/hourforeachofthetwoblackoutgenerators.)2.Thesulfurcontent ofeachshipment ofdieselfuelthatisreceivedatthefacilityfor combustioninanyofthesixgeneratorsshallbedocumentedbyawrittencertificationfromthesupplier.Thesecertificationsshallbekeptonthepremisesandbeavailableforinspectionby representatives oftheChattanooga-HamiltonCountyAirPollutionControl Bureau(theBureau)uponrequestduringnormal businesshours.Each certification shallbemaintainedforaperiodoftwo(2)yearsafteritisreceived.

3.Emissions ofnitrogenoxides(NOx)fromthesix generators combinedshallnotexceed70.992tonsduringany periodof365consecutive days.Compliancewiththisemissionlimitationshallbeaccomplished byadherencetothefollowing limitations:a.Themaximumallowable emissions ofNOxfromeachofEmergency Generators 1A,IB,2A,and2Bare140.0pounds/hour.

b.Themaximumallowable emissions ofNOxfromeachofBlackoutGenerators 1and2are68.0 pounds/hour.c.Thesixgeneratorsshalleachbeoperatedfornomorethan204hoursduringany periodof365consecutive days.4.Thesixgeneratorsshalleachbecontinuouslyoperatedforaperiod ofnomorethanfive (5)consecutivedays,inaccordancewith§41,Rule2.7,theHamiltonCountyAir Pollution ControlRegulation(theRegulation).5.Alogshallbemaintainedinwhichthedailyhours ofoperationforeach ofthesixgeneratorsarerecorded.ThislogshallbekeptonthepremisesandbeavailableforinspectionbyBureaurepresentativesuponrequestduringnormalbusinesshours.TheTennesseeValleyAuthority-SequoyahNuclearPlant Page20 informationinthislogshallbemaintainedforaperiod oftwo(2)yearsafteritsdate ofentry.6.AwrittenreportshallbesubmittedbyMay17 ofeachyearnotifyingtheBureauDirector ofthetotalnumber ofhoursthateach ofthesixgeneratorswereoperatedduringthe preceding twelve(12)months.7.Themaximumallowableemissions ofparticulatematterfromeach ofEmergencyGenerators1A,IB,2A,and2Bare4.07pounds/hour,inaccordancewith§41,Rule10.2, theRegulation.8.Themaximumallowable emissions ofparticulatematterfromeach ofBlackoutGenerators1and2are1.80 pounds/hour.

Thisemissionlimitation isreasonable andproper,as determinedbytheBureauDirector,in accordancewith§41,Rule27.3,the Regulation.9.VisibleemissionsfromEmergencyGenerators1A,IB,2A,and2Bshallnotexceedtwenty(20)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours,in accordancewith§41,Rule3,theRegulation.10.VisibleemissionsfromBlackoutGenerators1and2shallnotexceedten(10)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormore thantwenty(20)minutesinanyperiod oftwenty-fourhours.This limitation isreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41,Rule27.3,the Regulation.11.Testing ofanyofthesixgeneratorstodeterminetheemissions ofparticulatematter, sulfurdioxide(SO2),nitrogenoxides(NOx),andcarbon monoxide(CO)andtodeterminetheopacity oftheemissionsmayberequiredbytheBureauDirector.

Ifrequired,thesetestsshall,ataminimum,consist ofandbeperformedinaccordancewithEPATestMethods1,2, 3,4,5,6,7,9,and10,Title40 CodeofFederalRegulations Part60,AppendixAandinaccordancewith§3,the Regulation.

12.Ifanyofthesixgenerators operatesinsuchamannerastoviolateanyoftherequirements containedinthesespecialconditions,theowneror operatorshallpromptly notifytheBureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawrittenreportshallbesubmittedtotheBureau Directorwithinseven(7)days oftheonset,inaccordance with§12(e),the Regulation.13.TheTennesseeValleyAuthorityandtheBureaumutuallyagreetoreopenthisfederallyenforceablecertificate ofoperationuponpromulgation ofanynewfederalrequirementthatwouldbeapplicabletoany ofthesixgenerators iftheeffectivedate oftherequirementisnotlaterthanthedateonwhichthiscertificateisduetoexpire.

Tennessee ValleyAuthority

-SequoyahNuclearPlantPage21 14.Thisfederally enforceable certificate ofoperationisnottransferable fromonepersontoanotherperson,orfromoneair pollutantsourcetoanotherairpollutant source,orfromonelocationtoanotherlocation.TennesseeValleyAuthority-SequoyahNuclearPlantPage22 CHATTANOOGA-HAMILTON COUNTYAIRPOLLUTION CONTROLBUREAUTennessee ValleyAuthority

-SequoyahNuclearPlantSpecialConditions forCertificate ofOperation No.4150-30600701-01C ExpirationDate:July17,2012 Theownerandoperatorofthissourceshalladheretoall provisions oftheChattanooga AirPollution ControlOrdinance (theOrdinance) inadditiontothefollowing conditions andlimitations ofthiscertificate ofoperation throughoutitsterm.Any violation oftheOrdinance orthefollowing conditions andlimitationsmayleadto enforcement actionbytheChattanooga-HamiltonCountyAirPollution ControlBureauorBoardorbytheU.S.

Environmental Protection Agency.Provided, however,intheeventthatthefollowing conditions orlimitations aremorestringent thananyprovision oftheOrdinance, theconditions andlimitations ofthiscertificate shallcontrol.1.Themaximumallowable emissions ofparticulate matterfromtheUnit#1coolingtowerare7.2pounds/hour.

2.VisibleemissionsfromtheUnit#1coolingtowershallnotexceedtwenty(20)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiodofonehourormorethantwenty(20)minutesinanyperiodoftwenty-fourhours,inaccordancewith§41,Rule3,the HamiltonCountyAirPollution ControlRegulation (theRegulation).

3.TestingoftheUnit#1coolingtowertodetermine theopacityoftheemissionsmayberequiredbytheDirector, theChattanooga-Hamilton CountyAirPollution ControlBureau(theBureau).

Ifrequired,thistestshall,ataminimum,consist ofandbeperformedin accordance withEPATestMethod9,Title40 CodeofFederalRegulations Part60,AppendixAandinaccordance with§3,theRegulation.

4.IftheUnit#1 coolingtoweroperatesinsucha mannerastoviolateany oftherequirementscontainedinthesespecialconditions,theowneroroperatorshallpromptlynotifythe BureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)days oftheonset,inaccordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTYAIRPOLLUTION CONTROLBUREAUTennessee ValleyAuthority

-SequoyahNuclearPlantSpecialConditions forCertificate ofOperation No.4150-30600701-03C ExpirationDate:July17,2012Theownerandoperator ofthissourceshalladheretoallprovisions oftheChattanoogaAir Pollution ControlOrdinance(theOrdinance)inadditiontothefollowingconditionsand limitations ofthiscertificate ofoperation throughoutitsterm.Any violation oftheOrdinance orthefollowing conditions andlimitationsmayleadto enforcementactionbytheChattanooga-HamiltonCountyAirPollution ControlBureauorBoardorbytheU.S.

Environmental Protection Agency.Provided, however,intheeventthatthe following conditions orlimitationsaremorestringent thananyprovision oftheOrdinance,the conditions andlimitations ofthiscertificate shallcontrol.1.Themaximumallowable emissions ofparticulate matterfromtheUnit#2coolingtowerare7.2pounds/hour.

2.VisibleemissionsfromtheUnit#2coolingtowershallnotexceedtwenty(20)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiodofonehourormorethantwenty (20)minutesinanyperiodoftwenty-four hours,inaccordance with§41,Rule3,the HamiltonCountyAirPollution ControlRegulation (theRegulation).

3.TestingoftheUnit#2coolingtowertodeterminethe opacityoftheemissionsmayberequiredbytheDirector, theChattanooga-Hamilton CountyAirPollution ControlBureau(theBureau).Ifrequired,thistestshall,ata minimum,consistofandbeperformed inaccordance withEPATestMethod9,Title40 CodeofFederalRegulations Part60,AppendixAandinaccordance with§3,theRegulation.

4.IftheUnit#2coolingtoweroperatesinsuchamannerastoviolateany oftherequirements containedinthesespecialconditions,theowneroroperatorshallpromptlynotifythe BureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,anda writtenreportshallbesubmittedtotheBureauDirectorwithinseven(7)days oftheonset,inaccordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTYAIRPOLLUTION CONTROLBUREAUTennessee ValleyAuthority

-SequoyahNuclearPlantPage1of2SpecialConditions forCertificate ofOperation No.4150-30700804-06C Expiration Date:July17,2012Theownerandoperatorofthissourceshalladheretoall provisions oftheChattanooga AirPollution ControlOrdinance (theOrdinance) inadditiontothefollowing conditions andlimitations ofthiscertificate ofoperation throughoutitsterm.Any violation oftheOrdinance orthefollowing conditions andlimitationsmayleadto enforcement actionbytheChattanooga-HamiltonCountyAirPollution ControlBureauorBoardorbytheU.S.

Environmental Protection Agency.Provided, however,intheeventthatthe following conditions orlimitationsaremorestringent thananyprovision oftheOrdinance,the conditions andlimitations ofthiscertificate shallcontrol.1.Theparticulate matteremissionsourcesofInsulation SawAaretwosawbladesuctionvents,asuctionhose,andaventilation hood.Themaximumallowable emissions ofparticulate matterfromalloftheseemissionsourcescombinedare0.49pound/hour, inaccordance with§41,Rule10.3,the HamiltonCountyAirPollution ControlRegulation (theRegulation).2.Themaximumallowable emissions ofparticulate matterfromInsulationSawAare0.25 grainperstandardcubicfoot(gr/scf),

inaccordance with§41,Rule10.7,theRegulation.3.Theparticulate matteremissionsourcesofInsulationSawBaretwosawbladesuction ventsandasuctionhose.Particulate matteremissions fromeachoftheseemissionsourcesshallbe ventedtoandcontrolledbyasettlingdrumfollowedbyabagfilterorotherpieceorpieces ofcontrolequipmentthathavean equivalentorgreaterparticulate mattercontrolefficiency.Thecontrolequipmentshallbeusedand maintained inaccordance withthemanufacturers' recommendations.

Foreachofthethreeemissionsourcesofthesaw,thesourceshallnotbe operatedifitscontrol equipmentisnotinuse.

Theserequirements arereasonableandproper,as determinedbytheDirector,the Chattanooga-Hamilton CountyAirPollution ControlBureau(theBureau),inaccordance with§41,Rule27.3,theRegulation.4.Themaximumallowableemissions ofparticulatematterfromall oftheemissionsources combinedofInsulationSawBare0.20pound/hour.Thisemissionlimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41, Rule27.3,theRegulation.

5.Visibleemissions fromInsulationSawAshallnot exceedtwenty(20)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours,inaccordancewith§41,Rule3,the Regulation.

Tennessee ValleyAuthority

-SequoyahNuclearPlantPage2of2SpecialConditions forCertificate ofOperation No.4150-30700804-06C 6.Visibleemissions fromInsulationSawBshallnotexceedten(10) percentopacityforan aggregate ofmorethanfive(5)minutesinanyperiodofonehourormorethantwenty(20)minutesinanyperiodoftwenty-fourhours.This limitation isreasonable andproper,asdeterminedbytheBureauDirector, inaccordance with§41,Rule27.3,the Regulation.

7.TestingofeitherInsulationSawAorBto determine theemissions ofparticulate matterandtodetermine theopacityoftheemissionsmaybe requiredbytheDirector,the Chattanooga-HamiltonCountyAir Pollution ControlBureau(theBureau).

Ifrequired,thesetestsshall,ata minimum,consistofandbeperformed inaccordancewithEPATest Methods1,2,3,4,5,and9,Title40 CodeofFederalRegulationsPart60,AppendixAandinaccordance with§3,theRegulation.

8.IfInsulationSawAorBisusedinsucha mannerastoviolateanyoftherequirements containedinthesespecialconditions,theowneror operatorshallpromptlynotifythe BureauDirectorwithin twenty-four hoursoftheonsetoftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)daysoftheonset,in accordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTYAIRPOLLUTION CONTROLBUREAUTennessee ValleyAuthority

-SequoyahNuclearPlantPage1of3SpecialConditions forFederally Enforceable Certificate ofOperation No.4150-10200501-08C Expiration Date:July17,2012Theownerandoperatorofthissourceshalladheretoall provisions oftheChattanooga AirPollution ControlOrdinance (theOrdinance) inadditiontothefollowing conditions andlimitations ofthisfederally enforceable certificate ofoperation throughoutitsterm.Any violation oftheOrdinanceorthefollowingconditionsand limitationsmayleadto enforcement actionbytheChattanooga-Hamilton CountyAirPollution ControlBureauorBoardorbytheU.S.Environmental ProtectionAgency.Provided,however,inthe eventthatthefollowing conditions orlimitationsaremorestringentthananyprovision oftheOrdinance,theconditions andlimitations ofthiscertificateshallcontrol.Each ofthefollowing conditionsisfederally enforceableforthepurposeofsynthetic minorsourcestatus.1.Onlydieselfuel(No.2fueloil)maybeburnedin AuxiliaryBoilersAandB.Thesulfur contentofthedieselfuelthatisburnedinthetwoboilersshallnotexceed0.06(zeropointzerosix)percentbyweight.(Each oftheseboilershasaheatinputcapacity of54.5x106Btu/hour.)2.BoilersAandBaresubjecttoandthepermitteeshallcomplywith"Standards ofPerformance forSmallIndustrial-Commercial-Institutional SteamGenerating Units,"Title40CodeofFederalRegulationsPart60,SubpartDc(§60.40c-48c),asadoptedat§41,Rule15,the HamiltonCountyAirPollutionControlRegulation(theRegulation).3.Foreach shipmentofdieselfuelthatisreceivedatthefacilityforcombustionineither BoilerAandB,acertificationfromthesuppliershall documentitssulfurcontentandshallverifythatitcompliedwiththespecificationsforNo.2fueloilasdefinedbytheAmericanSocietyforTestingandMaterialsinASTMStandardD396.Thesecertificationsshallbekeptonthepremisesandbeavailableforinspectionby representatives oftheChattanooga-HamiltonCountyAirPollutionControlBureau(theBureau)uponrequestduringnormalbusinesshours.Eachcertificationshallbemaintainedforaperiod oftwo(2)yearsafteritisreceived.Inaddition,asemiannualreportshallbesubmittedtotheBureauDirectorthatconsists ofrecordsofthefuelsuppliercertificationsforall ofthedieselfuelthatwasreceivedatthefacilityforcombustionineitherboilerduringeachreportingperiod ofsix(6)calendarmonths.ThereportingperiodsareJanuary1throughJune30andJuly1throughDecember31 ofeachyear.Eachsemiannualreportisduebythe30thdayfollowingtheend ofeachreportingperiod.Theserequirementsarein accordancewith"Standards ofPerformanceforSmallIndustrial-Commercial-InstitutionalSteamGeneratingUnits,"Title40 CodeofFederalRegulationsPart60,SubpartDc,

§60.42c(d)and(h)and§60.48c(d),(e),(f),(i),and(j),

asadoptedat§41,Rule15,theRegulation.

Tennessee ValleyAuthority

-SequoyahNuclearPlantPage2of3SpecialConditions forFederally Enforceable Certificate ofOperation No.4150-10200501-08C4.Alogshallbemaintained inwhichthequantityofdieselfuel thatisburnedinBoilersAandBduringeachcalendarmonthisrecorded.Thislogshallbekeptonthe premisesandbeavailable forinspection byBureaurepresentatives uponrequestduringnormal businesshours.Theinformationinthislogshallbe maintainedforaperiodoftwo(2)yearsafteritsdate ofentry.These requirementsareinaccordance with"Standards ofPerformance forSmallIndustrial-Commercial-Institutional SteamGenerating Units,"Title40CodeofFederalRegulationsPart60,SubpartDc,§60.48c(g)and(i),as adoptedat§41,Rule15,theRegulation.

5.Emissions ofnitrogenoxides(NOx)fromBoilersAandB combinedshallnotexceed9.0tonsduringany periodof365consecutivedays.

Compliancewiththisemission limitationshallbeaccomplishedbyadherencetothefollowing limitations:

a.Themaximumallowable emissions ofNOxfromeachofthetwoboilersare9.0pounds/hour.b.Thesumofthetotalamountoftimeduring whichBoilerAisinoperationandthetotalamountoftimeduringwhichBoilerBisinoperationshallnotexceed2,000hoursduringanyperiodof365consecutive days.6.Alogshallbe maintainedinwhichthedailyhours ofoperationforeach ofBoilersAandBarerecorded.Thislogshallbekeptonthepremisesandbeavailablefor inspection byBureaurepresentativesuponrequestduringnormalbusinesshours.Theinformationinthislogshallbe maintainedforaperiod oftwo(2)yearsafteritsdate ofentry.7.AwrittenreportshallbesubmittedbyMay17 ofeachyearnotifyingtheBureauDirector ofthetotalnumberofhoursthateach ofBoilersAandBwere operatedduringthe preceding twelve(12)months.8.Themaximumallowableemissions ofparticulatematterfromeach ofBoilersAandB are0.030poundper106Btu.Thisemissionlimitation isequivalent to1.64pounds/hourfortheoperation ofeachboileratitsheatinputcapacity.Thisemissionlimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41, Rule27.3,theRegulation.

9.VisibleemissionsfromBoilersAandBshallnotexceedten(10) percentopacityforan aggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours.Thislimitationisreasonableandproper,as determinedbytheBureau

Director, inaccordancewith§41,Rule27.3,the Regulation.

Tennessee ValleyAuthority

-SequoyahNuclear PlantPage3of3SpecialConditions forFederally Enforceable Certificate ofOperation No.4150-10200501-08C 10.Visibleemissions fromBoilersAandBshallnot exceedtwenty(20)percentopacityonaverageinanyperiodofsix(6)minutes,exceptforonesix (6)-minute periodinanyperiodofonehourinwhichvisibleemissionsshallnotexceedtwenty-seven (27)percentopacityonaverage.This limitationisinaccordance with"Standards ofPerformance forSmallIndustrial-Commercial-Institutional SteamGenerating Units,"Title40CodeofFederalRegulations Part60,SubpartDc,§60.43c(c),

asadoptedat§41,Rule15,the Regulation.

11.TestingofeitherBoilerAorBtodetermine theemissions ofparticulate matter,sulfurdioxide(SO2),nitrogenoxides(NOx),and carbonmonoxide(CO)andto determine theopacityoftheemissions mayberequiredbytheBureauDirector.

Ifrequired, thesetestsshall,ataminimum,consistofandbeperformed inaccordance withEPATestMethods1,2,3,4,5,6,7,9,and10,Title40 CodeofFederalRegulationsPart60,AppendixAandinaccordance with§3,theRegulation.

12.IfBoilerAorBoperatesinsuchamannerastoviolateany oftherequirements contained inthesespecialconditions, theowneroroperatorshallpromptlynotifytheBureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawrittenreportshall besubmittedtotheBureauDirectorwithinseven(7)daysoftheonset,inaccordance with§12(e),theRegulation.13.TheTennessee ValleyAuthorityandtheBureaumutuallyagreetoreopenthisfederally enforceable certificate ofoperation uponpromulgation ofanynewfederal requirement thatwouldbeapplicabletoeitherofthetwoauxiliaryboilers iftheeffectivedate oftherequirementisnotlaterthanthedateonwhichthis certificateisduetoexpire.14.Thisfederally enforceable certificate ofoperationisnottransferablefromonepersontoanotherperson,orfromoneairpollutantsourcetoanotherairpollutantsource,orfrom onelocationtoanotherlocation.

CHATTANOOGA-HAMILTON COUNTYAIRPOLLUTION CONTROLBUREAUTennessee ValleyAuthority

-SequoyahNuclearPlantSpecialConditions forCertificate ofOperation No.4150-30703099-09C ExpirationDate:July17,2012Theownerandoperator ofthissourceshalladheretoallprovisions oftheChattanoogaAirPollutionControlOrdinance(theOrdinance)inadditiontothefollowingconditionsand limitations ofthiscertificate ofoperationthroughoutitsterm.Anyviolation oftheOrdinanceorthefollowingconditionsandlimitationsmayleadtoenforcementactionbythe Chattanooga-HamiltonCountyAirPollution ControlBureauorBoardorbytheU.S.

Environmental Protection Agency.Provided,however,intheeventthatthe followingconditionsor limitationsaremorestringentthananyprovision oftheOrdinance,theconditionsandlimitationsofthis certificate shallcontrol.1.Theparticulatematteremissionsourcesofthecarpentershoparetworadial-armsaws,atablesaw,abandsaw,aplaner,andtwofloorvents.Themaximumallowableemissions ofparticulatematterfromall oftheseemissionsourcescombinedare1.42 pounds/hour,inaccordancewith§41,Rule10.3,theHamiltonCountyAirPollutionControl Regulation (theRegulation).2.Visibleemissionsfromthecarpentershopshallnotexceedtwenty(20)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours,inaccordancewith§41,Rule3, theRegulation.3.Testing ofanyoftheemissionsources ofthecarpentershoptodeterminetheemissions ofparticulatematterandtodeterminetheopacity oftheemissionsmayberequiredbythe

Director, theChattanooga-Hamilton CountyAirPollution ControlBureau(theBureau).Ifrequired,thesetestsshall,ataminimum, consistofandbeperformedinaccordance withEPATestMethods1,2,3,4,5,and9,Title40 CodeofFederalRegulations Part60,AppendixAandinaccordance with§3,theRegulation.

4.Ifthecarpentershopisusedinsuchamannerastoviolateanyoftherequirements contained inthesespecialconditions, theowneroroperatorshallpromptlynotifytheBureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawritten reportshallbesubmittedtotheBureauDirectorwithinseven(7)daysoftheonset,in accordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTYAIRPOLLUTION CONTROLBUREAUTennesseeValleyAuthority-SequoyahNuclearPlantPage1 of2SpecialConditions forCertificate ofOperation No.4150-30900203-10C ExpirationDate:July 17,2012Theownerandoperatorofthissourceshalladheretoall provisions oftheChattanooga AirPollutionControlOrdinance(theOrdinance)inadditiontothefollowingconditionsand limitations ofthiscertificate ofoperationthroughoutitsterm.Anyviolation oftheOrdinanceorthefollowingconditionsandlimitationsmayleadtoenforcementactionbytheChattanooga-HamiltonCountyAirPollutionControlBureauorBoardorbytheU.S.Environmental Protection Agency.Provided,however,intheeventthatthefollowing conditionsorlimitationsaremorestringentthanany provision oftheOrdinance,theconditionsandlimitations ofthiscertificate shallcontrol.1.Particulate matteremissionsfromtheabrasiveblasting operationshallbecontained withinanenclosure andventedtoandcontrolledbyafilter thatcompletely coversanyexhaustintakeorby anotherpieceofcontrolequipmentthathasan equivalentorgreaterparticulatemattercontrolefficiency.Theblastingoperationshallnotbeused ifthefilterforanyexhaustintakeisnotinplace.These requirements arereasonableandproper,asdeterminedbytheDirector,theChattanooga-HamiltonCountyAirPollutionControlBureau(theBureau),inaccordancewith§41,Rule27.3,theHamiltonCountyAir Pollution ControlRegulation (theRegulation).2.Themaximumallowableemissions ofparticulatematterfromtheabrasiveblastingoperationare0.30pound/hour.Thisemissionlimitationisreasonableandproper,as determinedbytheBureauDirector,in accordancewith§41,Rule27.3,theRegulation.

3.Visibleemissionsfromanyexhauststackthat servestheabrasiveblastingoperation shallnotexceedten(10)percentopacityforanaggregate ofmorethanfive(5) minutesinanyperiodofonehourormorethan twenty(20)minutesinanyperiodoftwenty-four hours.Thislimitation isreasonableandproper,as determinedbytheBureauDirector,in accordance with§41,Rule27.3,theRegulation.

4.Visibleemissionsfromthebuildingorotherenclosure thattheabrasiveblastingoperation isperformedinshallnotexceedfive(5) percentopacityforanaggregate ofmorethanfive(5) minutesinanyperiodofonehourormorethan twenty(20)minutesin anyperiodoftwenty-fourhours.This limitation isreasonableandproper,as determinedbytheBureauDirector, inaccordancewith§41,Rule27.3,the Regulation.

TennesseeValley Authority

-SequoyahNuclearPlantPage2of2SpecialConditions forCertificate ofOperation No.4150-30900203-1OC5.Testing oftheabrasiveblastingoperation,ascontrolled,todeterminetheemissions ofparticulate matterandtodeterminetheopacity oftheemissionsmayberequiredbythe

Director, theChattanooga-Hamilton CountyAirPollution ControlBureau(theBureau).

Ifrequired,thesetestsshall,ataminimum,consist ofandbeperformedinaccordance withEPATestMethods1,2,3,4,5,and9,Title40 CodeofFederalRegulationsPart60,AppendixAandinaccordance with§3,theRegulation.

6.Iftheabrasiveblastingoperationisperformedinsuchamannerastoviolateany oftherequirements containedinthesespecialconditions,the owneroroperatorshallpromptlynotifythe BureauDirectorwithintwenty-four hoursoftheonsetoftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)days oftheonset,inaccordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTYAIRPOLLUTION CONTROLBUREAUTennessee ValleyAuthority

-SequoyahNuclearPlantPage1of3SpecialConditions forFederally Enforceable Certificate ofOperation No.4150-20200102-11C ExpirationDate:July17,2012 Theownerandoperatorofthissourceshalladheretoall provisions oftheChattanooga AirPollution ControlOrdinance (theOrdinance) inadditiontothefollowing conditions andlimitations ofthisfederally enforceable certificate ofoperation throughoutitsterm.Any violation oftheOrdinanceorthefollowingconditionsandlimitationsmayleadtoenforcementactionbythe Chattanooga-HamiltonCountyAir Pollution ControlBureauorBoardorbythe U.S.Environmental Protection Agency.Provided, however,intheeventthatthefollowing conditions orlimitationsaremorestringentthananyprovision oftheOrdinance,theconditions andlimitations ofthiscertificateshallcontrol.Each ofthefollowing conditionsisfederally enforceableforthepurposeofsynthetic minorsourcestatus.1.Onlydieselfuel(No.2fueloil)maybe burnedinEmergency Generators 1A,IB,2A,and2BandBlackoutGenerators 1and2.Thesulfurcontentofthedieselfuelthatisburnedinthesixgeneratorsshallnotexceed0.06(zero pointzerosix)percentbyweight.

(Theheatinputcapacities are38.4x106Btu/hourforeachofthefouremergency generators and18.5x106Btu/hourforeachofthetwoblackoutgenerators.)2.Thesulfurcontentofeachshipmentofdieselfuel thatisreceivedatthefacilityfor combustioninanyofthesixgeneratorsshallbedocumentedbyawrittencertificationfromthesupplier.Thesecertificationsshallbekeptonthepremisesandbeavailablefor inspection byrepresentatives oftheChattanooga-HamiltonCountyAirPollutionControl Bureau(theBureau)uponrequestduringnormal businesshours.Each certification shallbemaintainedforaperiodoftwo(2)yearsafteritisreceived.3.Emissions ofnitrogenoxides(NOx)fromthesixgeneratorscombinedshallnotexceed70.992tonsduringanyperiod of365consecutivedays.Compliancewiththisemissionlimitationshallbeaccomplishedbyadherencetothefollowinglimitations:a.Themaximumallowableemissions ofNOxfromeach ofEmergencyGenerators1A,IB,2A,and2Bare140.0 pounds/hour.

b.Themaximumallowable emissions ofNOxfromeachofBlackoutGenerators 1and2are68.0 pounds/hour.c.Thesixgeneratorsshalleachbeoperatedfornomorethan204hoursduringany periodof365consecutive days.

Tennessee ValleyAuthority

-SequoyahNuclearPlantPage2of3SpecialConditions forFederally Enforceable Certificate ofOperation No.4150-20200102-11C4.Thesixgenerators shalleachbecontinuously operatedforaperiodofnomorethanfive(5)consecutive days,inaccordance with§41,Rule2.7,theHamiltonCountyAirPollution ControlRegulation (theRegulation).5.Alogshallbe maintainedinwhichthedailyhours ofoperationforeachofthesixgeneratorsarerecorded.Thislogshallbekeptonthe premisesandbeavailablefor inspection byBureaurepresentativesuponrequestduringnormalbusinesshours.The informationinthislogshallbe maintainedforaperiod oftwo(2)yearsafteritsdate ofentry.6.Awrittenreportshallbe submittedbyMay17ofeachyearnotifying theBureauDirectorofthetotalnumberofhoursthateach ofthesixgenerators wereoperatedduringthe preceding twelve(12)months.7.Themaximumallowable emissions ofparticulate matterfromeachofEmergency Generators 1A,IB,2A,and2Bare4.07 pounds/hour, inaccordance with§41,Rule10.2, theRegulation.8.Themaximumallowable emissions ofparticulate matterfromeachofBlackoutGenerators1and2are1.80 pounds/hour.

Thisemissionlimitation isreasonable andproper,as determinedbytheBureauDirector,in accordancewith§41,Rule27.3,the Regulation.9.Visible emissions fromEmergencyGenerators1A,IB,2A,and2Bshallnotexceedtwenty(20) percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours,in accordance with§41,Rule3,theRegulation.

10.Visibleemissions fromBlackoutGenerators1and2shallnotexceedten(10)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours.Thislimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41,Rule27.3,the Regulation.11.Testing ofanyofthesixgeneratorstodeterminetheemissions ofparticulatematter,sulfurdioxide(SO2),nitrogenoxides(NOx),andcarbonmonoxide(CO)andtodeterminetheopacity oftheemissionsmayberequiredbytheBureauDirector.Ifrequired,thesetestsshall,ataminimum,consist ofandbeperformedinaccordancewith EPATestMethods1,2,3,4,5,6,7,9,and10,Title40 CodeofFederalRegulations Part60,AppendixAandinaccordancewith§3,the Regulation.

TennesseeValleyAuthority-SequoyahNuclearPlantPage3of3SpecialConditions forFederally Enforceable Certificate ofOperation No.4150-20200102-11C 12.Ifanyofthesixgeneratorsoperatesinsuchamannerastoviolateanyoftherequirementscontainedinthesespecial conditions,theowneroroperatorshall promptlynotifytheBureauDirectorwithintwenty-fourhours oftheonsetoftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)days oftheonset,inaccordance with§12(e),the Regulation.13.TheTennesseeValleyAuthorityandtheBureaumutuallyagreetoreopenthis federallyenforceablecertificate ofoperationuponpromulgation ofanynewfederal requirementthatwouldbeapplicabletoanyofthesix generatorsiftheeffectivedateoftherequirementisnotlaterthanthedateonwhichthiscertificateisduetoexpire.14.Thisfederallyenforceablecertificate ofoperationisnottransferablefromonepersontoanotherperson,orfromoneairpollutant sourcetoanotherairpollutant source,orfromonelocationtoanotherlocation.