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
Shared Package
ML13289A109	List: ML13289A092 ML13289A094 ML13289A095 ML13289A096 ML13289A097 ML13289A098 ML13289A099 ML13289A100 ML13289A101 ML13289A108 ML13289A111 ML13289A112 ML13289A113 ML13289A114 ML13289A115 ML13289A116 ML13289A117 ML13289A118 ML13289A119 ML13289A120 ML13289A121 ML13289A122 ML13289A123 ML13289A124 ML13289A125 ML13289A126 ML13289A127 ML13289A128 ML13289A129 ML13289A130 ML13289A132 ML13289A133 ML13289A134 ML13289A136 ML13289A137 ML13289A153 ML13289A158 ML13289A164 ML13289A165 ML13289A166 ML13289A167 ML13289A168 ML13289A169 ML13289A170 ML13289A171 ML13289A172 ML13289A173 ML13289A174 ML13289A197 ML13289A198 ... further results
References
Download: ML13289A218 (35)

Text

-358 11o4oI 000 ftl<<fiOWfc5p8<<de*te<<

CHATTANOOGA-HAMILTON COUNTY AIR POLLUTION CONTROL BUREAUTennesseeValleyAuthority-SequoyahNuclearPlant P.O.Box 2000 Mail Stop SB-2A Soddy-Daisy, Tennessee 37384-2000 2600 Igou Ferry Road Soddy-Daisy, Tennessee 37379-3624 Telephone:

843-6700or843-6713 Telefax: 843-7080Contacts:StephanieHoward,LynneKoby J.Alan Frazier Engineer April 1,2011(Nextinspectionreportdue:July 17,2011)Applicable Certificates:

liilllHl lllliil iii iiiiiii lllliil;..^.^^^HHBHIpi' mm_JSi^iil 4150-30600701-01C 4150-30600701-03C 4150-30700804-06C 4150-10200501-08C*

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

wm^m^B^^^^^^^^^^^K^^^K Unit#1 Cooling Tower Unit#2 Cooling Tower Insulation Saws A and B Auxiliary BoilersAandB Carpenter Shop Abrasive Blasting OperationEmergencyGenerators1A,IB,2A,and2B and Blackout Generators 1 and 2*Federally Enforceable Certificate Compliance:

illl^HMNHHi i liiliiip^^iil^llf lllllilip'""""llllll lll^Miiiiil:

$685$685$200July17,2012

$415$200$200$285 Total Fees:$2,670 SiiaiiSl Boilers and Generators Usage ReportReceived:May 14,2010Infull operational and enforcement compliance Annual Onsite Inspection Performed:

March 31,2011FullCompliance EvaluationCompleted:April 1,2011 Purpose The above listed certificates of operation for Tennessee Valley Authority (TVA)are due to expire on July 17,2012.An annual inspection of the equipment that is covered by the certificates was made at Sequoyah Nuclear Plant on March 31,2011.The observations that were made during the inspection are summarized in this report.This report also includes discussions of the operation of the permitted equipment, the air pollutant emissions, and the applicable regulations.

Process Description TVA Sequoyah uses two nuclear reactors, which are referredtoas Reactor Units#1and#2,toheat pressurizedwater.Foreachreactorunit,thispressurizedwater,whichcirculatesinaclosedloop,isusedasasource ofheattoproducesteaminside of four parallelsteamgenerators.

The resulting steamfromthefoursteam generators ofeachunitissenttoa commonheaderand is then usedina high-pressure turbine followed by three low-pressure turbines in series to power a generator that produces electricity.

The steam is condensed after it exitsthefour turbines, andthewater,whetherintheliquidorgaseous(steam)state,circulatesinaclosedloopforeachunit.Thiswateris circulatedbytwo parallelfeedwaterpumpsthatareeachdrivenbyaturbine.These two turbines for eachunitare powered by"extraction"steamthatis divertedfromtheinitial high-pressure turbine.Water from the adjacent Tennessee Riverisusedto condense the steam.Reintroduction of this waterintothe river cannot resultinthe downstream temperature of the river being raised by more than 5.4°F during the months of April through Octoberand9.0°F during the months of November through March as averagedovera 24-hourperiod.The temperature ofthewaterthat is dischargedintothe river also cannotfluctuatebymorethan3.6°F duringanyhour.Holding ponds are sometimes sufficienttocoolthe watertothe desired temperature.

However,itisoften necessarytocool this water further in either of two cooling towers, which are designatedastheUnit#1 cooling tower (Certificate

-01C)andtheUnit#2 cooling tower (Certificate

-03C).In addition, reintroduction of the water into the river cannot result in the downstream river temperature exceeding an average of 86.9°Fovera 24-hour period unless the water is being cooledinone cooling tower per operating reactor unit.Water mist that is emittedfromthetwo cooling towers contains entrained particulatematter.These particulate emissions are uncontrolled and originatefromdirt,silt,etc.intheriverwater.

For each ofthetwo reactor units, the initial high-pressure turbineandthetwo feedwater pump turbines are each supplied with lubricatingoilbyanoil recirculationsystem.In addition, the electricity generator ofeachunitis suppliedwithsealoilbyanoil recirculationsystem.Each oftheseeight recirculation systems includesanoil reservoirthatis equippedwithanoil vapor extractor.

The extractors serve to vent oil vaporfromtheairspace abovetheoil reservoirs.

Each of the eight oil vapor extractorsalsoservestoremove waterfromtheoilthatresultsfrom inadvertent contact betweentheoilandsteam.

Hydrogengasis used to cool the bearings of the two electricity generators,andtheoil vapor extractorforthesealoil reservoir of each generatoralsoservesto remove dissolved hydrogenfromtheoil.

Hydrogenisnot consideredtobeanair pollutant.

Particulate emissions ofoilmist, whichisa VOC, result from each of the eight oil vapor extractors.Theoil mist emissionsfromthe extractorfortheoil reservoir of the initial high-pressure turbine of each unit are controlledbya demister,andtheoil mist emissions from the othersixoil vapor extractors are uncontrolled.

Oil vapor extractors for coal-fired steam generating facilities are classified as insignificant activities in accordance with§8(a)(l)a.

However, because such extractors for nuclear-powered steam generating facilitiesarenot specifically listed as insignificantactivities,TVAhasbeen informed that installationpermitsand initial certificates of operationwillbe issuedfortheUnit#1and Unit#2oil vapor extractors.

Tennessee Valley Authority-SequoyahNuclearPlantPage2 If both nuclear reactor unitsarenotin operation, either Auxiliary BoilerAorB (Certificate

-08C)couldbeusedtopreheatwaterforthesteamgeneratorsinpreparationforstartingupone ofthereactorunits.Theboilerwouldthenbeshut offwhenthereactorcomesonline.In addition, either of these two identical boilers could be used as needed to heat the turbinebuildinginordertokeepwaterinpipesfromfreezingduringthewintermonths ifbothreactorunitsarenotinoperation.Theauxiliaryboilersarenotnormallyused,however,becauseatleast one ofthetwo reactor units shouldbein operationatanytime.Thetwo boilersarefueledexclusivelybydieselfuel(No.2fueloil).Theyhadbeenfueledbylow-sulfurdieselfuel,andultra-lowsulfurdieselfueliscurrentlyavailableforuseinthem.Emissionsthatresultfromfuel combustionintheboilersareuncontrolled,andtheyareventedtoasingleexhauststack.EmergencyGenerators1A,IB,2A,and2B (Certificate

-11C)areavailabletoprovideelectricpowerforsafelyshuttingdownthenuclearreactorsintheunlikelyevent ofaloss of off-sitepowertotheplant.Inaddition,"Blackout"Generators1and2areavailableforasimilarpurpose.Onlyone emergencygeneratorwouldbeneededperoperatingreactor.Emergency Generators 1A and IB serve Reactor Unit#1,and Reactor Unit#2is served by EmergencyGenerators2Aand2B.Each ofthefouridenticalemergencygeneratorsandtwoidenticalblackoutgeneratorsispoweredbyaninternal-combustionenginethatisfueledexclusivelybydieselfuel.Theywerepreviouslyfueledbylow-sulfurdieselfuel,andultra-lowsulfurdieselfuelisusedinthematpresent.Emissionsthatresultfromfuelcombustioninthemareuncontrolled.Each oftheenginesforthefouremergencygeneratorsisequippedwithtwoexhauststacks.Therehasneverbeenanunintendedloss ofpowerthatrequiredtheuse of any ofthesix generators, although they are periodically operated for test purposes.Intheevent ofaloss ofpowertotheplant,sevenothergeneratorsareavailabletoprovideelectricpowerforspecificneeds.Thesesevengenerators,alongwithfourwaterpumps,areeach poweredbyasmall internal-combustionenginethatisfueledexclusivelybydieselfuel.Low-sulfiirdieselfuelwas previouslyusedinthem,andtheyare currentlyfueledby ultra-lowsulfurdieselfuel.Most ofthemareperiodicallyoperatedfortestpurposes,andemissionsthat result from fuel combustion in them are uncontrolled.

Dieselfuelis burnedinthe largest of these eleven enginesata maximum rate of31.1gal/hr(4.26 MMBtu/hr),andeach of themisnot requiredtobe permitted in accordance with§4-8(d)(3).

Two band saws (Certificate

-06C)areusedtocut insulationtofit various components attheplant.These componentsincludepipingandpressurevessels.Thetwosawsareprimarilyusedtocut calcium silicate (CaSiC>3)insulation,buttheycanalsobeusedtocutothertypes ofinsulationmaterial,suchasrubber.Nomaterialcontainingasbestosisevercutbyeither of these saws.InsulationSawAisused primarily.

InsulationSawBisnot currentlyused,butitisavailableforuseasabackupunit.ForSawA,particulateemissionsfromalargesuctionhosethatis mountednearthe working section ofthebandsawbladeare controlledbya prefilterfollowedbyaHEPA (high-efficiencyparticulateair)filter.ParticulateemissionsfromahoodthatisoverthissawarealsocontrolledbyaprefilterfollowedbyaHEPAfilter.ThesetwoHEPAfiltersareventedtoasingleexhausthose.ForSawB,threeprefiltersinparallelfollowedbythreeHEPAfiltersinparallelareusedtocontrolparticulateemissionsfromalargesuctionhosethatis positionedneartheworkingsection ofthebandsawblade.Inaddition,foreach of TennesseeValleyAuthority-Sequoyah Nuclear Plant Page 3 SawsAandB,asettlingdrumfollowedbyabagfilterisusedtocontrolparticulateemissions from each of two suction vents that are both located under the work table and adjacenttothe band saw blade.Acarpentershop (Certificate

-09C)containstworadial-armsaws,atablesaw,abandsaw,andaplaner.Particulateemissions ofsawdustfromall ofthesepieces of woodworkingequipmentarecontrolledbyabaghouse.Thisbaghouseisalsousedtocontrolparticulate emissions from two floor vents that sawdust is swept into.Abrasiveblasting(Certificate-IOC)ofsheetmetalisperformedwithinalarge enclosed room using a manual nozzle.Boiler slag, under the trade name of Black Beauty, is used as theabrasive.Particulateemissionsfromthisoperationarecontrolledbyafilterpanel.Tentestweldingboothsareoccasionallyusedfortrainingpurposes.Stick,TIG(tungsteninertgas),andMIG(metalinertgas) welding is performedinthese booths, and uncontrolled particulate emissionsfromtheseboothsare ventedtoa single exhaust stack.In addition,asawisusedtocutsmallsections ofsteelpipethathavebeenweldedintheboothsinordertotestthe integrity ofthewelds.ParticulateemissionsofsteeldustfromthissawarecontrolledbyaHEPAfilter.Maintenanceweldingisaninsignificantactivity,andbecausethetestweldingboothsandsawareusedonlyinconjunctionwithtrainingworkerstoperformmaintenancewelding,theyarealsoclassifiedasinsignificantactivitiesinaccordancewith§8(a)(l)a.

Evaluation 4150-30600701-01C Unit#1CoolingTower 4150-30600701-03C Unit#2 Cooling TowerTheUnit#1andUnit#2coolingtowerswerenotinoperationatthetime of theinspection.ReactorUnits#1and#2werebothonline.Bothcoolingtowersappearedtobein good condition.

Each ofthetwo cooling towerswasusedfor814hoursduring calendaryear2009.The estimated particulate emissionsfromeach ofthesetowersaregiveninTableIattheend of thissection.The potential emissionsarebasedon continuous operation.

Installation of the Unit#1and#2coolingtowerswas completedin1980.The particulate emissionsfromeach ofthetwo cooling towers are limitedbyRule10.3 (Schedule2)to115.2 lbs/hr, basedona process weight of139,690tons/hr.This limitationismore stringentthantheRule10.7particulate emission limit of 0.25 gr/scf(85,760lbs/hr)foreachtower.However,amorestringentparticulateemissionlimitation of7.2lbs/hrhasbeenpreviouslyestablishedforeachtowerbecauseithasbeendeterminedthatoperationattheRule10.3allowableemissionratewouldresultinthe creation of a particulate non-attainment area.TennesseeValleyAuthority-SequoyahNuclearPlantPage4 4150-30700804-06C Insulation Saws A and BInsulationSawAwasnotinoperationatthetime oftheinspection,andInsulationSawBisnotcurrentlyinuse.SawAanditstwoprefilters,twoHEPAfilters,twosettlingdrums,andtwobagfiltersandSawBanditsthreeprefiltersandthreeHEPAfiltersappearedtobeingoodcondition.ThetwosettlingdrumsandtwobagfiltersforusewithSawBwerenotinposition, and theywillbe replaced before the sawisusedagain.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.

This limitation cannot be converted into units of lbs/hr for the set of HEPA filters because the exhaustflowrate throughthefiltersisnotavailableatthistime.

Insulation Saw B was installed in about 1988.However, as of 2005, Insulation Saw Bwentfortwoyearswithoutbeingoperated,anditwasnolongerconsideredtobeanexisting source at that time, in accordance with§8(c)(l).Potential particulate emissions from Saw B,beforebeingcontrolled,are estimatedtobe9.7tons/yr.Therefore,theparticulateemissionsfromthissaware subjecttoRule27.3.Control of these emissionsbyasettlingdrumfollowedbyabagfilterhasbeen determinedtobereasonableandproper,in accordancewithRule27.3.Anappropriate reasonableandproperlimitationfortheparticulateemissionsfromSawBhas been previously determinedtobe0.20lb/hr.ThislimitationismorestringentthanboththeRule 10.3 (Schedule 2)particulate emission limit of0.49lb/hr,basedona process weight of80lbs/hr,andtheRule10.7 particulate emission limit of0.25gr/scf,whichis equivalentto0.39lb/hrfor each ofthetwobagfilters ofthissaw.TheRule10.7limit cannot be convertedintounits of lbs/hrfortheset of HEPA filters ofthissaw because the exhaustflowrate throughthefiltersis not available at this time.4150-10200501-08C Auxiliary BoilersAandB AuxiliaryBoilersAandBarenotcurrentlyinuse.Thesetwoboilers appearedtobeingoodcondition.Therequiredcertifications ofdieselfuelsulfurcontentandtherequiredlogs ofdailyhours ofoperationandmonthlydieselfuelusageforeachboilerwerebeingmaintained.TennesseeValleyAuthority-SequoyahNuclearPlant Page 5 Each ofthetwoboilershasaratedcapacity of54.5MMBtu/hr.Theyarenormallynotinuse.BoilerAwaslastoperatedbriefly(22minutes)fortestpurposesonSeptember 16,2004,andBoilerBwaslastoperatedonNovember14,2000.Theyarefueledexclusivelybydieselfuelthathasaverageandmaximumsulfurcontents of0.0015%and0.06%byweight, respectively.Theestimatedemissions of particulate (PM25,PMio,andtotal),NOx,SOx,CO,VOCs,methane,andC02(actualandC02e)thatresultfromdieselfuelcombustioninthetwoboilerscombinedaregiveninTableIIattheend of this section.TheseemissionswerecalculatedbyusingAP-42(1998)emission factors.Thepotentialemissionsarebasedon simultaneousoperationofthetwoboilersattheirrated capacitieswhileburningdieselfuelthathasthemaximumsulfurcontent.Thepotentialemissionsarealsobasedonthesum ofthetotalamountoftimethatBoilerAisin operationandthetotal amountoftimethatBoilerBisin operationbeingequalto2,000hrs/yr.47.0%and69.7%

oftheparticulate emissionsthatresultfromburningdieselfuelintheboilersare PM2.5 and PM10, respectively.TheVOCemissionsthatresultfromdieselfuelcombustionintheboilersconsist ofupto28.4%formaldehyde (methanal, H2CO),whichisaHAP.All ofthesepercentageswere determinedbyusingAP-42(1998)emission factors.AuxiliaryBoilersAandBwereinstalledin1976.However,as ofNovember15,2002,thetwoboilerswentfortwoyearswithoutbeing operated,andtheywerenolonger considered tobeexisting sourcesatthattime,in accordancewith§8(c)(l).Theseboilersare therefore subjecttothe provisions of"Standards of Performance for Small Industrial-Commercial-InstitutionalSteamGeneratingUnits"[40CFRPart60,SubpartDc(§60.40c-48c)],asadoptedatRule15.

§60.42c(d) ofSubpartDcstipulatesthatnofuelshallbeburnedineitherboilerthathasasulfur content ofgreaterthan0.5%byweight.

Reporting and recordkeeping requirementsaregivenin

§60.48c of this subpart.Potential NOx emissions from each of BoilersAandBare estimatedtobe 7.956 lbs/hr.AnappropriateNOxemissionlimitationforeachofthetwoboilershasbeenpreviouslydeterminedtobe9.0lbs/hr.Anappropriatelimitationhasalsobeenpreviouslydeterminedtobethatthesum ofthetotalamount oftimeduringwhichBoilerAisin operationandthetotal amount oftimeduringwhichBoilerBisinoperationshallnotexceed2,000hrs/yr.TheseNOxemissionandoperationallimitationsresultinanappropriateNOxemissionlimitation of 9.0tons/yrforthetwoboilerscombined.TVArequestedall oftheselimitationsinordertoqualifyasa synthetic minorsource.The potentialemissionsthataregiveninTableIIarebasedupon the operational limitation.

Potential particulate emissionsfromeach ofBoilersAandBare estimatedtobe1.313 lbs/hrand5.7 tons/yr, based on continuous operation.

Therefore, the particulate emissions from these boilers are subjecttoRule27.3.An appropriate reasonable and proper limitation, in accordancewithRule27.3,forthe particulate emissionsfromeach of BoilersAandBhasbeen previously determinedtobe0.030 lb/MMBtu,whichis equivalentto1.64 lbs/hrforeachboilerwhileitis operatingatitsratedcapacity.Nocontrolsarenecessaryinordertoachievethis Tennessee Valley Authority-SequoyahNuclearPlantPage6 limitation for eitherboiler.This limitation is equivalenttothe particulate emissionlimitthat,althoughnotapplicabletothetwoboilers,isstipulatedby

§60.43c(e)(l) ofSubpartDc.This limitationismore stringentthantheRule8.2(Schedule2) particulate emission limit of 12.72 lbs/hr for each boiler.This limitationisalso more stringent than the Rule 26.6 (RACT)particulate emission limit of0.15864lb/MMBtu,which,althoughitisnotapplicabletothetwoboilers,is equivalentto8.65 lbs/hrforeach boilerwhileitis operatingatitsratedcapacity.AnappropriatesulfurcontentlimitationforthedieselfuelthatisburnedinBoilersAandBhasbeenpreviouslydeterminedtobe0.06%byweight.TVArequestedthislimitationinordertoqualifyasasyntheticminorsource.Combustion ofdieselfuelwiththemaximumallowablesulfurcontentineither boileratitsratedcapacityresultsinpotentialSOxemissions of 3.44 lbs/hr.This SOx emission rate is the effective SOx emission limitation for each boiler.ThislimitationismorestringentthantheRule13.2 SO2emissionlimit of4lbs/MMBtu,whichisequivalentto218.0lbs/hrforeach ofthetwoboilerswhiletheyareoperatingattheirrated capacities.TheVOCemissionsfromBoilersAandBaresubjecttoBACT(Rule25.3).IthasbeendeterminedthatnocontrolsarenecessaryinordertosatisfyBACTfortheseemissions,andnoquantitativeBACTVOCemissionlimitationsarenecessary.Nolimitationsareapplicablefor the emissions of CO, methane, and CO2 from either of the two boilers.4150-30703099-09C Carpenter Shop None of the equipment ofthecarpentershopwasinoperationatthetime of theinspection.Thetwo radial-armsaws,tablesaw,bandsaw,planer,twofloorvents,andbaghouse appearedtobein good condition.

The carpentershopis operated for approximately4hrs/day,5days/wk,and6wks/yr.

The baghousehasan estimated particulatecontrolefficiency of99%.The estimated particulate emissionsfromthis carpentershopare giveninTableI.The potential emissions are based on continuous operation.

The carpenter shop was installedinMay1995.The particulate emissionsfromthis carpentershopare limitedbyRule10.3(Schedule2)to1.42lbs/hr,basedonaprocessweight of450lbs/hr.This limitationismorestringentthantheRule10.7 particulate emission limit of 0.25 gr/scf (3.43 lbs/hr).4150-30900203-10C Abrasive Blasting OperationAbrasiveblastingwasnotbeingperformedatthetime oftheinspection.Theroomthatit is performedinandthefilterpanelappearedtobeingoodcondition.

Tennessee Valley Authority-SequoyahNuclearPlantPage7 Theabrasiveblastingoperationisusedforapproximately3hrs/day,5days/wk,and8 wks/yr.Abrasive is blastedatarate of approximately500lbs/hr.Thefilterpanelhasan estimated particulate control efficiency of 95%.The estimated particulateemissionsfromthisoperationaregiveninTableI.Theseemissionswere calculatedbyusinganAP-42(1997)uncontrolledparticulateemissionfactor of0.027poundperpound ofsandmultipliedby(0.010poundperpound ofabrasive)/(0.041poundperpound ofsand),whichisaratio ofSCAQMDuncontrolledparticulateemissionfactors.The potential emissions are based on continuous 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 limit of 0.25 gr/scf (55.71 lbs/hr).4150-20200102-11CEmergencyGenerators1A,IB,2A,and2Band BlackoutGenerators1 and 2EmergencyGenerators1A,IB,2A,and2BandBlackoutGenerators1and2werenotinoperationatthetime oftheinspection.Generators1Aand2Aand BlackoutGenerators1and2appearedtobeingoodcondition.GeneratorsIBand2Bcouldnotbeviewedbecause of atemporarysecurityrestriction.Therequiredcertifications ofdieselfuelsulfurcontentandthe required log of daily hours of operationforeach of the generators were being maintained.Thefour emergency generatorseachhavearated capacity of 38.4 MMBtu/hr,andtheyareeach normally testedataheatinputrate ofabout34.25 MMBtu/hr.Each ofthetwoblackout generators is normally testedat50%ofitsratedcapacity of 18.5 MMBtu/hr.Thesixgeneratorsarefueled exclusivelybydieselfuelthathasa maximum sulfur content of0.06%byweight.Thesix generators are normallyoperatedonlyduringtesting.

During the twelve-monthperiodfromApril 1,2009, through March 31,2010,annualtestingtimeswere60.4hoursfor Generator1A, 40.9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br /> for Generator IB, 66.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> for Generator 2A, 72.4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for Generator 2B, 4.7 hours8.101852e-5 days <br />0.00194 hours <br />1.157407e-5 weeks <br />2.6635e-6 months <br /> for Blackout Generator 1, and 5.0 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> for Blackout Generator 2.Thelow-sulfurdieselfuelthatwasburnedinthesix generatorsduringthisperiodhadanaveragesulfurcontent of0.05%byweight.Theultra-lowsulfurdieselfuelthatiscurrentlyusedhasanaveragesulfur content of 0.0015%byweight.Theestimatedemissions of particulate (PM25, PM10,andtotal),NOx,SOx,CO,VOCs,methane,and CO2(actualandC02e)thatresultfromdieselfuelcombustioninthesix generatorscombinedaregiveninTableII.Theseemissionswerecalculatedbyusingemissionfactorsfrom TennesseeValleyAuthority-Sequoyah Nuclear Plant Page 8 AP-42 (1996)Table 3.4-2 for particulate; AP-42(1996)Table3.4-1 forNOx, CO, VOCs, methane,andCO2;and AP-42 (1998)Table1.3-1forSOx.The potential emissions are based onsimultaneousoperation ofthesixgeneratorsattheirratedcapacitiesfor204hrs/yrwhileburningdieselfuel thathasthe maximumsulfurcontent.

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

oftheparticulateemissionsthatresultfromburningdieselfuelinthe generators are PM2.5andPMio, respectively.EmergencyGenerators1A,IB,2A,and2Bwereinstalledin1972,andBlackout Generators 1 and 2 were installed in 2004.Potential NOx emissions are estimated to be 122.880lbs/hrfromeach ofthefouremergencygeneratorsand59.200lbs/hrfromeach ofthetwoblackoutgenerators.AnappropriateNOxemissionlimitationforeach ofthefouremergencygeneratorshasbeenpreviouslydeterminedtobe140.0lbs/hr(2,242ppm).AnappropriatelimitationfortheNOxemissionsfromeach ofthetwoblackoutgeneratorshasbeenpreviouslydeterminedtobe68.0lbs/hr(1,687ppm).Anappropriatelimitationhasalsobeenpreviouslydeterminedtobe204hrs/yrforthetime of operation of each ofthesixgenerators.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 NOx emissionsfromthe combined eleven small internal-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 of 70.992 tons/yrforthesix permitted generators combinedis96.137tons/yr,whichis belowthePart70majorsourcethresholdforNOxemissions of100tons/yr.

Potential particulate emissionsfromeach of Emergency Generators 1A, IB,2A,and2B are estimatedtobe 2.676 lbs/hr.The particulate emissions from each of these generators are limitedbyRule10.2 (Schedule1)to4.07lbs/hr, basedona process weight for each generator of1,976lbs/hr(38.4 MMBtu/hr-s-0.137MMBtu/galx7.05lbs/gal).This limitationismorestringentthantheRule10.7 particulate emission limit of 0.25 gr/scf(18.75lbs/hr)foreach emergency generator.

Potential particulate emissionsfromeach of Blackout Generators1and2are estimated tobe1.289lbs/hrand0.31ton/yr,basedonoperationfor480hrs/yr(theRule2.7limitation).Therefore,theparticulateemissionsfromthesegeneratorsaresubjecttoRule27.3.Anappropriatereasonableandproperlimitation,inaccordancewithRule27.3,fortheparticulateemissionsfromeach ofBlackoutGenerators1and2hasbeenpreviouslydeterminedtobe1.80lbs/hr.Nocontrolsarenecessaryinordertoachievethislimitationforeithergenerator.ThislimitationismorestringentthanboththeRule10.3(Schedule2)particulateemissionlimit of Tennessee Valley Authority-SequoyahNuclearPlantPage9 2.27 lbs/hr, basedona process weight for each blackout generator of 952 lbs/hr (18.5 MMBtu/hr-0.137 MMBtu/galx7.05 lbs/gal),andtheRule10.7 particulate emission limit of 0.25 gr/scf (12.10 lbs/hr)for each blackout generator.

An appropriate limitationforthe sulfur content of the diesel fuel that is burnedinthesix generators has been previously determinedtobe 0.06%by weight.TVA requested this limitation in order to qualifyasa synthetic minor source.Combustion of diesel fuel with the maximum allowable sulfur contentinthesixgeneratorsattheirrated capacitiesresultsin potential SOx emissions of 2.422 lbs/hrforeach ofthefour emergency generatorsand1.17 lbs/hr for each ofthetwo blackout generators.TheseSOx emissionratesarethe effective SOx emission limitationsforthesix generators.

These limitations are more stringent thantheRule13.1SO2 emission limits of 500 ppm(43.5lbs/hr)foreach emergency generatorand500ppm (28.1 lbs/hr)for each blackout generator.

The VOC emissions fromthetwo blackout generators are subject to BACT(Rule25.3).Ithas been determined that no controls are necessary in order to satisfy BACT for theseemissions,andnoquantitativeBACTVOCemissionlimitationsarenecessary.Theemissions of CO, methane,andCO2fromthetwo blackout generators are subjecttoRule23.Ithasbeen determined that no controls are necessaryinordertosatisfy reasonable and proper control technology, in accordance withRule23,forthese emissions of CO, methane,andCO2,andno quantitative reasonable and proper limitations are necessaryforthese emissions.Inaddition,no limitations are applicableforthe emissions ofCO,VOCs, methane,andCO2fromany of the four emergency generators.TableI.Facility-Wide Process Emissions ofParticulateMatter

^^il^JliliiBl iiBiiiil 1111 Allowable mUnit#1 Cooling Tower (-01C)2.898 7.120 31.186 7.2 Unit#2 Cooling Tower (-03C)2.898 7.120 31.186 7.2 Insulation Saw A (-06C)0.0080 0.133 0.583 0.49 Insulation Saw B (-06C)-0-0.133 0.583 0.20 Carpenter Shop (-09C)0.0054 0.090 0.394 1.42 Abrasive Blasting (-10C)0.010 0.165 0.721 0.30 Total Particulate 5.819 14.761 64.652 16.81 Tennessee Valley Authority-SequoyahNuclearPlantPage10 Table II EmissionsfromtheTwoAuxiliary BoilersandSixGenerators Pollutant Actual Emissions tons/yr Potential Emissionslbs/hrtons/yr mmMm(miM^Ž^w^^^

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

£*£.-<<£Two Auxiliary Boilers (-08C)1.233 Four Emergency Generators

(-11C)0.229 8.540 Two Blackout Generators

(-11C)0.0025 2.057 Total PM2.5 0.231 11.831 Two Auxiliary Boilers (-08C)-0-1.830 Four Emergency Generators

(-11C)0.236 8.801 Two Blackout Generators

(-11C)0.0026 2.120 Total PM10 0.238 12.751 i?^.;lj/i#^^-M-^lf;pf^

Two Auxiliary Boilers (-08C)-0-2.626 Four Emergency Generators

(-11C)0.287 10.706 Two Blackout Generators

(-11C)0.0031 2.579 Total Particulate 0.290 15.910 Two Auxiliary Boilers (-08C)-0-15.912 Four Emergency Generators

(-11C)13.174 491.520 Two Blackout Generators

(-11C)0.144 118.400 Total NOx 13.317 625.832 Two Auxiliary Boilers (-08C)-0-6.874 Four Emergency Generators

(-11C)0.216 9.687 Two Blackout Generators

(-11C)0.0024 2.333 Total SOx 0.219 18.894*Based on sum of operation of Boiler A and operation of BoilerBof 2,000 hrs/yr tBased on operation for 204 hrs/yrTennesseeValleyAuthority-Sequoyah Nuclear Plant 0.617*3.28 1.64 0.871t 16.28 1.66 0.210t 3.60 0.37 1.698 23.16 3.67 0.915*3.28 1.64 0.898t 16.28 1.66 0.216t 3.60 0.37 2.029 23.16 3.67 1.313^3.28 1.64 1.092t 16.28 1.66 0.263?3.60 0.37 2.668 23.16 3.67 S^SiS 7.956" 18.0 9.00 50.135t 560.0 57.12 12.077t 136.0 13.87 70.168 714.0 79.99 3.437*6.88 3.44 0.988t 9.69 0.99 0.238t 2.34 0.24 4.663 18.91 4.67 Page 11 Table ILEmissionsfromthe Two AuxiliaryBoilersandSix Generators (continued)

Pollutant Two Auxiliary Boilers (-08C)Four Emergency Generators

(-11C)Two Blackout Generators

(-11C)Total CO Actual Emissions-0-3.499 0.038 3,537 Potential Emissions lbs/hr 3.978 1.989s*130.560 13.317t 31.450 3.208t 165.988 18.514 jjftgBfij^^

Two Auxiliary Boilers (-08C)-0-0.159 Four Emergency Generators

(-11C)0.337 12.580 Two Blackout Generators

(-11C)0.0037 3.030 Total VOCs 0.341 15.769 Two AuxiliaryBoilers(-08C) 0.041 Four Emergency Generators

(-11C)0.033 1.244 Two Blackout Generators

(-11C)0.00036 0.300 Total Methane 0.034 1.585 n Two Auxiliary Boilers (-08C)-0-17,742.3 Four Emergency Generators

(-11C)673.5 25,129.0 Two Blackout Generators

(-11C)23.5 6,053.2 Total C02 697.0 48,924.5 Two Auxiliary Boilers (-08C)-0-17,807.3 Four Emergency Generators

(-11C)674.2 25,155.1 Two Blackout Generators

(-11C)23.5 6,059.5 Total C02e 697.7 49,021.9*Based on sum of operation of Boiler A and operation of BoilerBof 2,000 hrs/yr tBased on operation for 204 hrs/yr Tennessee Valley Authority-SequoyahNuclearPlant 0.080s1 1.283t 0.309t 1.672 0.021s 0.127t 0.03 It 0.178 8,871.2*2,563.2t 617.4t 12,051.7 8,903.7*2,565.8t 618.lt 12,087.6'^lEnns^ppt^

Ibs/hp j6t0y^n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a Igjgl^tS n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/a n/aPage12 ConclusionsTheUnit#1 cooling tower(Certificate-01C)andUnit#2coolingtower(Certificate-03C)were determinedtobein compliancewith§41,Rule3 (visible emissions),Rule10 (particulate emissions),andRule12(odor) of the HamiltonCountyAir Pollution Control Regulation (the Regulation).

InsulationSawA (Certificate-06C)andthe carpenter shop (Certificate-09C)were determinedtobein compliancewith§41,Rule3(visible emissions)andRule10(particulate emissions) of the Regulation.

InsulationSawB (Certificate-06C)andtheabrasive blasting operation(Certificate-IOC)weredeterminedtobeincompliancewith§41,Rule27.3(reasonableandproperparticulateand visible emissions) of the Regulation.AuxiliaryBoilersAandB(Certificate-08C)weredeterminedtobeincompliancewith§41,Rule12(odor),Rule13(S02emissions),Rule15("Standards ofPerformanceforSmall Industrial-Commercial-Institutional Steam Generating Units"),Rule25.3 (BACT VOC emissions),andRule27.3 (reasonableandproperparticulateandvisible emissions) of the Regulation.EmergencyGenerators1A,IB,2A,and2B(Certificate-11C)weredeterminedtobeincompliancewith§41,Rule2(NOxemissions),Rule3(visibleemissions),Rule10(particulate emissions),Rule12(odor),andRule13(SO2 emissions) of the Regulation.

Blackout Generators1and2(Certificate-11C)were determinedtobein compliance with§41,Rule2(NOxemissions),Rule12(odor),Rule13(S02emissions),Rule23(reasonableandpropergaseousemissions),Rule25.3(BACTVOCemissions),andRule27.3(reasonableand proper particulate and visible emissions) oftheRegulation.

Tennessee Valley Authority-SequoyahNuclearPlantPage13 Recommendations

{from September24,2007,annualinspectionreport)

I recommend that Certificates of Operation No.-01C,-03C,-06C,-08C,-09C,-IOC,and

-1 ICberenewed.TVA Sequoyah NuclearPlantisasyntheticminorsource,and CertificatesNo.-08Cand-1 IC are federally enforceable.

Each of these certificates shouldbevalidfora period offiveyearsand shouldexpireonJuly17,2012.Thefollowingspecial conditions should apply.4150-30600701-01C1.The maximum allowable emissions of particulate matterfromtheUnit#1 cooling towerare7.2 pounds/hour.2.VisibleemissionsfromtheUnit#1coolingtowershallnotexceedtwenty(20)percent opacityforan aggregate ofmorethanfive(5) minutesinany period ofonehourormore than twenty (20)minutesinany period of twenty-fourhours,in accordancewith§41,Rule3,the Hamilton County Air Pollution Control Regulation (the Regulation).

3.Testing of the Unit#1 cooling towertodeterminethe opacity of the emissionsmayberequiredbythe Director, the Chattanooga-HamiltonCountyAir PollutionControlBureau (the Bureau).If required,thistestshall,ata minimum, consist ofandbe performed in accordancewithEPATest Method9,Title40 Code ofFederalRegulationsPart60, AppendixAandin accordance with§3,the Regulation.

4.IftheUnit#1 cooling tower operatesinsucha mannerasto violate any of the requirements contained in these special conditions, the owner or operator shall promptly notify the Bureau Director within twenty-four hours of the onset of the violation,anda written report shall be submittedtothe Bureau Director within seven(7)days of theonset,in accordance with§12(e),theRegulation.

4150-30600701-03C1.The maximum allowable emissions of particulate matterfromthe Unit#2 cooling towerare7.2 pounds/hour.

2.Visible emissions from the Unit#2 cooling towershallnot exceed twenty (20)percent opacityforan aggregate of more thanfive(5)minutesinany period of one hourormore than twenty (20)minutesinany period of twenty-fourhours,in accordance with§41,Rule3,the Hamilton County Air Pollution Control Regulation (the Regulation).

3.Testing oftheUnit#2 cooling towertodeterminethe opacity of the emissionsmaybe requiredbythe Director, the Chattanooga-Hamilton County Air PollutionControlBureau (the Bureau).If required,thistestshall,ata minimum, consist ofandbe performed in Tennessee Valley Authority-SequoyahNuclearPlantPage14 accordance with EPA Test Method9,Title40 Code of Federal RegulationsPart60, AppendixAandin accordancewith§3,the Regulation.

If the Unit#2 cooling tower operatesinsucha mannerasto violate any of the requirements containedinthesespecial conditions, the owner or operator shall promptly notify the Bureau Director within twenty-four hours of the onset of the violation,anda written report shall be submittedtothe Bureau Director within seven(7)days of theonset,in accordance with§12(e),theRegulation.

4150-30700804-06C1.The particulate matter emission sources of Insulation SawAaretwo saw blade suction vents, a suction hose, and a ventilation hood.The maximum allowable emissions of particulate matterfromall of these emission sources combinedare0.49 pound/hour, in accordance with§41,Rule10.3,the Hamilton County Air Pollution Control Regulation (the Regulation).2.The maximum allowable emissions of particulate matter from InsulationSawAare0.25 grain per standard cubic foot (gr/scf), in accordance with§41, Rule10.7,the Regulation.3.The particulate matter emission sources of Insulation SawBare two saw blade suction vents and a suction hose.Particulate matter emissions from each of these emission sourcesshallbe ventedtoand controlledbya settling drum followedbyabagfilteror otherpieceor pieces of control equipmentthathavean equivalent or greater particulate matter control efficiency.

The control equipmentshallbe used and maintained in accordance with the manufacturers' recommendations.

For each of the three emission sources ofthesaw,thesourceshallnotbe operated ifitscontrol equipmentisnotinuse.

These requirements are reasonable and proper, as determinedbythe Director, the Chattanooga-Hamilton County Air Pollution Control Bureau (the Bureau), in accordance with§41, Rule 27.3, the Regulation.4.The maximum allowable emissions of particulate matterfromall of the emission sources combined of InsulationSawBare0.20 pound/hour.

This emission limitation is reasonable and proper, as determinedbythe BureauDirector,in accordancewith§41,Rule27.3,the Regulation.5.Visible emissions from InsulationSawAshallnotexceed twenty (20)percentopacityfor an aggregate of more thanfive(5)minutesinany period of one hourormorethantwenty(20)minutesinany period oftwenty-fourhours,inaccordancewith§41,Rule3,the Regulation.

6.Visible emissions from InsulationSawBshallnot exceedten(10)percent opacityforan aggregate of more thanfive(5)minutesinany period of one hour or more than twenty(20)minutesinany period oftwenty-fourhours.ThislimitationisreasonableandTennesseeValleyAuthority-SequoyahNuclearPlantPage15 proper, as determinedbythe Bureau Director, in accordance with§41, Rule27.3,the Regulation.7.Testing of either InsulationSawAorBtodeterminethe emissions of particulate matterandto determine the opacity oftheemissionsmaybe requiredbytheDirector,the Chattanooga-HamiltonCountyAir PollutionControlBureau(theBureau).

If required,thesetestsshall,ata minimum, consist ofandbe performed in accordancewithEPATestMethods1,2, 3,4,5,and9,Title40 Code of Federal RegulationsPart60,AppendixAandin accordance with§3,the Regulation.

8.If InsulationSawAorBisusedinsucha mannerastoviolateany of the requirements containedinthesespecialconditions,theowneroroperatorshall promptlynotifythe Bureau Director within twenty-four hours of the onset of the violation,anda written reportshallbe submittedtothe Bureau Director within seven(7)days oftheonset,in accordancewith§12(e),the Regulation.

4150-10200501-08C1.Only dieselfuel(No.2fueloil)maybe burned in Auxiliary BoilersAandB.The sulfur content of the diesel fuel that is burnedinthetwo boilers shall not exceed0.06(zero pointzerosix)percentbyweight.(Each oftheseboilershasaheatinput capacity of 54.5 x 106Btu/hour.)

2.BoilersAandBare subjecttoandthe permittee shall comply with"Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units," Title 40 Code of Federal RegulationsPart60, Subpart Dc (§60.40c-48c), as adopted at§41,Rule15,the Hamilton County Air Pollution Control Regulation (the Regulation).3.Foreach shipment ofdieselfuelthatisreceivedatthefacilityfor combustionineither BoilerAandB,a certificationfromthe supplier shall document its sulfur content and shall verify that it compliedwiththe specificationsforNo.2fueloilasdefinedbythe American Society for Testing and Materials in ASTM Standard D396.These certificationsshallbe keptonthe premisesandbe available for inspection by representatives of the Chattanooga-HamiltonCountyAir Pollution Control Bureau (the Bureau)upon request duringnormalbusinesshours.Each certificationshallbemaintainedfora period oftwo(2)yearsafteritisreceived.Inaddition,asemiannualreportshallbe submittedtothe BureauDirectorthatconsists of records ofthefuel supplier certificationsforall ofthedieselfuelthatwas receivedatthefacilityfor combustion in either boilerduringeachreportingperiod ofsix(6)calendarmonths.ThereportingperiodsareJanuary1throughJune30andJuly1throughDecember31 of eachyear.Each semiannualreportisduebythe30thdayfollowingtheend ofeachreportingperiod.These requirementsareinaccordancewith"Standards ofPerformanceforSmall Industrial-Commercial-Institutional Steam Generating Units,"Title40 Code of FederalTennesseeValleyAuthority-SequoyahNuclearPlant Page 16 Regulations Part 60, Subpart Dc,§60.42c(d)and(h)and§60.48c(d),(e),(f),(i),and(j), as adoptedat§41, Rule15,the Regulation.4.Alogshallbe maintained in whichthequantity ofdieselfuelthatis burnedinBoilersAandB during each calendar monthisrecorded.Thislogshallbekeptonthe premises and be available for inspection by Bureau representatives upon request during normal business hours.The informationinthislogshallbe maintainedfora period oftwo(2)yearsafteritsdate ofentry.These requirementsarein accordance with"Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units,"Title40 Code ofFederalRegulationsPart60,SubpartDc,§60.48c(g)and(i),asadoptedat§41, Rule 15, the Regulation.

5.Emissions of nitrogen oxides(NOx)fromBoilersAandB combinedshallnotexceed9.0tonsduringanyperiod of365consecutivedays.Compliancewiththisemission limitationshallbe accomplished by adherencetothefollowing limitations:

a.The maximum allowable emissions of NOx from each of the two boilers are 9.0 pounds/hour.b.Thesum ofthetotal amount oftimeduringwhich BoilerAisin operationandthe total amount oftimeduringwhichBoilerBisin operationshallnotexceed2,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> during any period of 365 consecutive days.6.Alogshallbe maintainedinwhichthedailyhours of operationforeach ofBoilersAandBarerecorded.Thislogshallbekeptonthepremisesandbeavailablefor inspection byBureaurepresentativesuponrequestduringnormalbusinesshours.Theinformationinthislogshallbe maintainedforaperiod oftwo(2)yearsafteritsdate of entry.7.AwrittenreportshallbesubmittedbyMay17 ofeachyearnotifyingtheBureauDirector of the total number of hours that each of BoilersAandBwere operated during the preceding twelve (12)months.8.Themaximumallowableemissions ofparticulatematterfromeach ofBoilersAandB are 0.030 pound per 106 Btu.This emission limitation is equivalent to 1.64 pounds/hourfortheoperation ofeachboileratitsheatinput capacity.Thisemissionlimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41, Rule 27.3, the Regulation.

9.Visible emissions from BoilersAandBshallnot exceedten(10)percent opacityforan aggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours.Thislimitationis reasonable andproper,as determinedbytheBureau Director, in accordancewith§41,Rule27.3,the Regulation.

TennesseeValleyAuthority-Sequoyah Nuclear Plant Page 17 10.Visible emissions from BoilersAandBshallnot exceed twenty (20)percent opacity onaverageinany period ofsix(6)minutes,exceptforonesix (6)-minute periodinany period of one hour in which visible emissionsshallnot exceed twenty-seven (27)percentopacityonaverage.This limitationisinaccordancewith"Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units,"Title40 Code ofFederalRegulationsPart60, SubpartDc,§60.43c(c),as adoptedat§41,Rule15,the Regulation.11.Testing ofeitherBoilerAorBtodeterminetheemissions ofparticulatematter,sulfur dioxide (SO2),nitrogenoxides(NOx),andcarbonmonoxide(CO)andtodeterminethe opacity oftheemissionsmayberequiredbytheBureauDirector.

Ifrequired,thesetestsshall,ataminimum,consist ofandbeperformedinaccordancewithEPATestMethods1,2,3,4,5,6,7,9,and10,Title40 Code ofFederalRegulationsPart60, Appendix Aandin accordance with§3, the Regulation.

12.IfBoilerAorBoperatesinsuchamannerastoviolateany oftherequirementscontainedinthesespecialconditions,theowneroroperatorshallpromptlynotifytheBureauDirectorwithintwenty-fourhours oftheonset oftheviolation,andawrittenreportshall be submittedtothe Bureau Director withinseven(7)days oftheonset,in accordance with§12(e),the Regulation.13.TheTennesseeValleyAuthorityandtheBureaumutuallyagreetoreopenthisfederallyenforceablecertificate ofoperationuponpromulgation ofanynewfederalrequirementthatwouldbeapplicabletoeither ofthetwoauxiliaryboilers iftheeffectivedate of therequirementisnotlaterthanthedateonwhichthiscertificateisduetoexpire.14.Thisfederallyenforceablecertificate ofoperationisnottransferablefromonepersontoanotherperson,orfromoneairpollutantsourcetoanotherairpollutantsource,orfrom one location to another location.4150-30703099-09C1.Theparticulatematteremissionsourcesofthecarpentershoparetworadial-armsaws,atablesaw,abandsaw,aplaner,andtwofloorvents.Themaximumallowableemissions ofparticulatematterfromalloftheseemissionsourcescombinedare1.42 pounds/hour,inaccordancewith§41,Rule10.3,theHamiltonCountyAirPollutionControl Regulation (the Regulation).2.Visibleemissionsfromthecarpentershopshallnotexceedtwenty(20)percentopacityforanaggregateofmorethanfive(5) minutesinanyperiodofonehourormorethantwenty(20)minutesinanyperiodof twenty-fourhours,in accordancewith§41,Rule3, the Regulation.

Tennessee Valley Authority-Sequoyah Nuclear Plant Page 18 Testing of any oftheemissionsources ofthecarpentershoptodeterminetheemissions ofparticulatematterandtodeterminetheopacity oftheemissionsmayberequiredbytheDirector,theChattanooga-HamiltonCountyAirPollutionControlBureau(theBureau).

Ifrequired,thesetestsshall,ataminimum,consist ofandbeperformedinaccordancewithEPATestMethods 1,2, 3,4,5,and9,Title40 Code of Federal RegulationsPart60, AppendixAandin accordancewith§3,theRegulation.

Ifthecarpentershopisusedinsuchamannerastoviolateany oftherequirementscontainedinthesespecialconditions,theowneroroperatorshallpromptlynotifythe Bureau Director within twenty-four hours oftheonset of the violation,anda writtenreportshallbesubmittedtotheBureauDirectorwithinseven(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 Control Regulation(theRegulation).2.The maximum allowable emissions ofparticulatematterfromtheabrasiveblasting operationare0.30 pound/hour.Thisemission limitation is reasonableandproper,as determinedbytheBureauDirector,inaccordancewith§41,Rule27.3,theRegulation.

3.Visible emissionsfromany exhauststackthatservesthe abrasive blasting operation shall not exceedten(10)percent opacityforan aggregate of more thanfive(5)minutesinany period of one hour or more than twenty (20)minutesinany period of twenty-four hours.This limitation is reasonable and proper, as determinedbythe Bureau Director, in accordance with§41, Rule27.3,the Regulation.4.Visibleemissionsfromthebuildingorotherenclosurethattheabrasiveblastingoperationisperformedinshallnotexceedfive(5)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours.Thislimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41,Rule27.3,theRegulation.

5.Testingofthe abrasive blasting operation, as controlled, to determine the emissions of particulate matterandto determine the opacityofthe emissionsmaybe requiredbytheDirector,the Chattanooga-HamiltonCountyAirPollutionControlBureau(the Bureau).If required, these tests shall,ata minimum, consistofandbe performed in accordance Tennessee Valley Authority-Sequoyah Nuclear Plant Page 19 withEPATestMethods1,2, 3,4,5,and9,Title40 Code of Federal RegulationsPart60,AppendixAandinaccordancewith§3,theRegulation.

Iftheabrasiveblastingoperationisperformedinsuchamannerastoviolateany of therequirementscontainedinthesespecialconditions,theowneroroperatorshallpromptlynotifythe Bureau Director within twenty-four hours oftheonset of the violation,andawrittenreportshallbe submittedtotheBureauDirectorwithinseven(7)days of theonset,in accordancewith§12(e),theRegulation.

4150-20200102-1 IC1.Onlydieselfuel(No.2fueloil)maybeburnedinEmergencyGenerators1A,IB,2A, and 2B and Blackout Generators 1 and 2.The sulfur content of the diesel fuel that isburnedinthesixgeneratorsshallnotexceed0.06(zeropointzerosix)percentbyweight.(The heat input capacities are 38.4 x 106 Btu/hour for each of the four emergency generators and 18.5 x 106 Btu/hour for each of the two blackout generators.)2.Thesulfurcontent ofeachshipment ofdieselfuelthatisreceivedatthefacilityfor combustioninany ofthesixgeneratorsshallbedocumentedbyawrittencertificationfromthesupplier.Thesecertificationsshallbekeptonthepremisesandbeavailableforinspectionby representatives oftheChattanooga-HamiltonCountyAirPollutionControl Bureau (the Bureau)upon requestduringnormal businesshours.Each certification shall be maintainedfora period oftwo(2)yearsafteritisreceived.

3.Emissions of nitrogen oxides(NOx)fromthesix generators combinedshallnotexceed70.992tonsduringany period of 365 consecutive days.Compliancewiththis emission limitationshallbe accomplished by adherencetothe following limitations:a.The maximum allowable emissions of NOx from each of Emergency Generators 1A, IB, 2A, and2Bare 140.0 pounds/hour.

b.The maximum allowable emissions of NOx from each of Blackout Generators 1and2are68.0 pounds/hour.c.Thesixgeneratorsshalleachbeoperatedfornomorethan204hoursduringany period of 365 consecutive days.4.Thesixgeneratorsshalleachbecontinuouslyoperatedforaperiod ofnomorethanfive (5)consecutivedays,inaccordancewith§41,Rule2.7,theHamiltonCountyAir Pollution Control Regulation(theRegulation).5.Alogshallbemaintainedinwhichthedailyhours ofoperationforeach ofthesixgeneratorsarerecorded.ThislogshallbekeptonthepremisesandbeavailableforinspectionbyBureaurepresentativesuponrequestduringnormalbusinesshours.TheTennesseeValleyAuthority-SequoyahNuclearPlant Page 20 informationinthislogshallbemaintainedforaperiod oftwo(2)yearsafteritsdate of entry.6.AwrittenreportshallbesubmittedbyMay17 ofeachyearnotifyingtheBureauDirector ofthetotalnumber ofhoursthateach ofthesixgeneratorswereoperatedduringthe preceding twelve (12)months.7.Themaximumallowableemissions ofparticulatematterfromeach of EmergencyGenerators1A,IB,2A,and2Bare4.07pounds/hour,inaccordancewith§41,Rule10.2, the Regulation.8.The maximum allowable emissions ofparticulatematterfromeach of Blackout Generators1and2are1.80 pounds/hour.

This emission limitation is reasonable andproper,as determinedbythe BureauDirector,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 than twenty (20)minutesinanyperiod of twenty-fourhours.This limitation isreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41,Rule27.3,the Regulation.11.Testing of any ofthesixgeneratorstodeterminetheemissions ofparticulatematter, sulfur dioxide (SO2), nitrogenoxides(NOx),andcarbon monoxide(CO)andtodeterminetheopacity oftheemissionsmayberequiredbytheBureauDirector.

Ifrequired,thesetestsshall,ataminimum,consist ofandbeperformedinaccordancewithEPATestMethods1,2, 3,4,5,6,7,9,and10,Title40 Code of Federal Regulations Part 60, AppendixAandin accordancewith§3,the Regulation.

12.If any ofthesix generators operatesinsucha mannerasto violate any of the requirements containedinthesespecialconditions,theowneror operatorshallpromptly notify the Bureau Director within twenty-four hours of the onset of the violation,anda written reportshallbe submittedtotheBureau Director withinseven(7)days of the onset, in accordance with§12(e),the Regulation.13.TheTennesseeValleyAuthorityandtheBureaumutuallyagreetoreopenthisfederallyenforceablecertificate ofoperationuponpromulgation ofanynewfederalrequirementthatwouldbeapplicabletoany ofthesixgenerators iftheeffectivedate of therequirementisnotlaterthanthedateonwhichthiscertificateisduetoexpire.

Tennessee Valley Authority-Sequoyah Nuclear Plant Page 21 14.This federally enforceable certificate of operationisnot transferable from one person to another person,orfromoneair pollutantsourceto another air pollutant source,orfrom one location to another location.TennesseeValleyAuthority-SequoyahNuclearPlantPage22 CHATTANOOGA-HAMILTON COUNTY AIR POLLUTION CONTROL BUREAU Tennessee Valley Authority-Sequoyah Nuclear Plant Special Conditions for Certificate of Operation No.4150-30600701-01C ExpirationDate:July17,2012 The owner and operator ofthissourceshalladheretoall provisions of the Chattanooga Air Pollution Control Ordinance (the Ordinance) in additiontothe following conditions and limitations of this certificate of operation throughoutitsterm.Any violation of the Ordinance or the following conditions and limitationsmayleadto enforcement actionbythe Chattanooga-Hamilton County Air Pollution Control Bureau or BoardorbytheU.S.

Environmental Protection Agency.Provided, however,inthe eventthatthe following conditions or limitations are more stringent than any provision of the Ordinance, the conditions and limitations of this certificate shall control.1.The maximum allowable emissions of particulate matterfromthe Unit#1 cooling towerare7.2 pounds/hour.

2.Visible emissionsfromthe Unit#1 cooling towershallnot exceed twenty (20)percent opacityforan aggregate of more thanfive(5)minutesinany period of one hourormore than twenty (20)minutesinany period of twenty-fourhours,in accordancewith§41,Rule3,the Hamilton County Air Pollution Control Regulation (the Regulation).

3.Testing of the Unit#1 cooling tower to determine the opacity of the emissionsmaybe requiredbythe Director, the Chattanooga-Hamilton County Air Pollution Control Bureau(theBureau).

Ifrequired,thistestshall,ataminimum,consist ofandbeperformedin accordance with EPA Test Method9,Title40 Code of Federal Regulations Part 60, AppendixAandin accordance with§3,the Regulation.

4.IftheUnit#1 cooling toweroperatesinsucha mannerastoviolateany of therequirementscontainedinthesespecialconditions,theowneroroperatorshallpromptlynotifythe Bureau Director within twenty-four hours oftheonset oftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)days of the onset, in accordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTY AIR POLLUTION CONTROL BUREAU Tennessee Valley Authority-Sequoyah Nuclear Plant Special Conditions for Certificate of Operation No.4150-30600701-03C ExpirationDate:July17,2012Theownerandoperator ofthissourceshalladheretoallprovisions oftheChattanoogaAir Pollution Control Ordinance(theOrdinance)inadditiontothefollowingconditionsand limitations of this certificate of operation throughoutitsterm.Any violation of the Ordinance orthefollowing conditions and limitationsmayleadto enforcementactionbytheChattanooga-Hamilton County Air Pollution Control Bureau or BoardorbytheU.S.

Environmental Protection Agency.Provided, however,intheeventthatthe following conditions or limitationsaremore stringent than any provision oftheOrdinance,the conditions and limitations of this certificate shall control.1.The maximum allowable emissions of particulate matterfromthe Unit#2 cooling towerare7.2 pounds/hour.

2.Visible emissionsfromthe Unit#2 cooling towershallnot exceed twenty (20)percent opacityforan aggregate of more thanfive(5)minutesinany period of one hourormorethantwenty (20)minutesinany period of twenty-four hours, in accordance with§41,Rule3,the Hamilton County Air Pollution Control Regulation (the Regulation).

3.Testing of the Unit#2 cooling towertodeterminethe opacity of the emissionsmaybe requiredbythe Director, the Chattanooga-Hamilton County Air Pollution Control Bureau (the Bureau).If required,thistestshall,ata minimum, consist ofandbe performed in accordance with EPA Test Method9,Title40 Code of Federal Regulations Part 60, Appendix A and in accordance with§3,the Regulation.

4.IftheUnit#2coolingtoweroperatesinsuchamannerastoviolateany of the requirements containedinthesespecialconditions,theowneroroperatorshallpromptlynotifythe Bureau Director within twenty-four hours oftheonset oftheviolation,anda written reportshallbe submittedtothe Bureau Director withinseven(7)days of the onset, in accordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTY AIR POLLUTION CONTROL BUREAU Tennessee Valley Authority-Sequoyah Nuclear Plant Page 1 of 2 Special Conditions for Certificate of Operation No.4150-30700804-06C Expiration Date: July 17,2012 The owner and operator ofthissourceshalladheretoall provisions of the Chattanooga Air Pollution Control Ordinance (the Ordinance) in additiontothe following conditions and limitations of this certificate of operation throughoutitsterm.Any violation of the Ordinance or the following conditions and limitationsmayleadto enforcement actionbythe Chattanooga-Hamilton County Air Pollution ControlBureauorBoardorbytheU.S.

Environmental Protection Agency.Provided, however,intheeventthatthe following conditions or limitationsaremore stringent than any provision oftheOrdinance,the conditions and limitations of this certificate shall control.1.The particulate matter emission sources of Insulation SawAaretwo saw blade suction vents, a suction hose, and a ventilation hood.The maximum allowable emissions of particulate matter from all of these emission sources combinedare0.49 pound/hour, in accordance with§41,Rule10.3,the Hamilton County Air Pollution Control Regulation (the Regulation).2.The maximum allowable emissions of particulate matter from InsulationSawAare0.25 grain per standard cubic foot (gr/scf), in accordance with§41, Rule10.7,the Regulation.3.The particulate matter emission sources of InsulationSawBaretwosawbladesuction vents and a suction hose.Particulate matter emissions from each of these emissionsourcesshallbe ventedtoand controlledbya settling drum followedbyabagfilterorotherpieceorpieces ofcontrolequipmentthathavean equivalentorgreaterparticulate matter control efficiency.Thecontrolequipmentshallbeusedand maintained in accordance with the manufacturers' recommendations.

For each of the three emission sources ofthesaw,thesourceshallnotbe operated ifitscontrol equipmentisnotinuse.

These requirements are reasonableandproper,as determinedbytheDirector,the Chattanooga-Hamilton County Air Pollution Control Bureau (the Bureau),inaccordance with§41, Rule 27.3, the Regulation.4.The maximumallowableemissions ofparticulatematterfromall oftheemissionsources combined of InsulationSawBare0.20pound/hour.Thisemissionlimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41, Rule 27.3, the Regulation.

5.Visible emissions from InsulationSawAshallnot exceed twenty (20)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours,inaccordancewith§41,Rule3,the Regulation.

Tennessee Valley Authority-Sequoyah Nuclear PlantPage2 of 2 Special Conditions for Certificate of Operation No.4150-30700804-06C 6.Visible emissions from InsulationSawBshallnotexceedten(10) percentopacityforan aggregate of more thanfive(5)minutesinany period of one hour or more than twenty (20)minutesinany period of twenty-fourhours.This limitation is reasonable and proper, as determinedbythe Bureau Director, in accordance with§41,Rule27.3,the Regulation.

7.Testing of either InsulationSawAorBto determine the emissions of particulate matterandto determine the opacity oftheemissionsmaybe requiredbytheDirector,the Chattanooga-HamiltonCountyAir Pollution Control Bureau(theBureau).

If required,thesetestsshall,ata minimum, consist ofandbe performed in accordancewithEPATest Methods1,2,3,4,5,and9,Title40 Code of Federal RegulationsPart60, Appendix Aandin accordance with§3,the Regulation.

8.If InsulationSawAorBisusedinsucha mannerasto violate any of the requirements containedinthese special conditions,theowneror operator shall promptlynotifythe BureauDirectorwithin twenty-four hours of the onset of the violation,anda written report shall be submittedtothe Bureau Director within seven(7)days oftheonset,in accordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTY AIR POLLUTION CONTROL BUREAU Tennessee Valley Authority-Sequoyah Nuclear PlantPage1 of 3 Special Conditions for Federally Enforceable Certificate of Operation No.4150-10200501-08C Expiration Date: July 17, 2012 The owner and operator ofthissourceshalladheretoall provisions of the Chattanooga Air Pollution Control Ordinance (the Ordinance) in additiontothe following conditions and limitations of this federally enforceable certificate of operation throughoutitsterm.Any violation of the Ordinanceorthefollowingconditionsand limitationsmayleadto enforcement actionbythe Chattanooga-Hamilton County Air Pollution Control Bureau or Boardorbythe U.S.Environmental ProtectionAgency.Provided,however,inthe eventthatthefollowing conditions or limitationsaremore stringentthanany provision oftheOrdinance,theconditions and limitations of this certificateshallcontrol.Each ofthefollowing conditionsisfederally enforceableforthe purpose of synthetic minorsourcestatus.1.Onlydieselfuel(No.2fueloil)maybeburnedin AuxiliaryBoilersAandB.Thesulfur content of the diesel fuel that is burnedinthetwo boilers shall not exceed 0.06 (zeropointzerosix)percentbyweight.(Each oftheseboilershasaheatinputcapacity of 54.5 x 106Btu/hour.)2.BoilersAandBaresubjecttoandthepermitteeshallcomplywith"Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units,"Title40 Code of Federal RegulationsPart60,SubpartDc(§60.40c-48c),asadoptedat§41,Rule15,the HamiltonCountyAirPollutionControlRegulation(theRegulation).3.Foreach shipment ofdieselfuelthatisreceivedatthefacilityforcombustionineither BoilerAandB,a certificationfromthesuppliershall documentitssulfurcontentandshallverifythatitcompliedwiththespecificationsforNo.2fueloilasdefinedbytheAmericanSocietyforTestingandMaterialsinASTMStandardD396.Thesecertificationsshallbekeptonthepremisesandbeavailableforinspectionby representatives oftheChattanooga-HamiltonCountyAirPollutionControlBureau(theBureau)uponrequestduringnormalbusinesshours.Eachcertificationshallbemaintainedforaperiod oftwo(2)yearsafteritisreceived.Inaddition,asemiannualreportshallbesubmittedtotheBureauDirectorthatconsists of records ofthefuelsuppliercertificationsforall ofthedieselfuelthatwasreceivedatthefacilityforcombustionineitherboilerduringeachreportingperiod ofsix(6)calendarmonths.ThereportingperiodsareJanuary1throughJune30andJuly1throughDecember31 of eachyear.Eachsemiannualreportisduebythe30thdayfollowingtheend ofeachreportingperiod.Theserequirementsarein accordancewith"Standards of PerformanceforSmall Industrial-Commercial-InstitutionalSteamGeneratingUnits,"Title40 Code of Federal RegulationsPart60,SubpartDc,§60.42c(d)and(h)and§60.48c(d),(e),(f),(i),and(j), as adoptedat§41,Rule15,theRegulation.

Tennessee Valley Authority-Sequoyah Nuclear PlantPage2 of 3 Special Conditions for Federally Enforceable Certificate of Operation No.4150-10200501-08C4.Alog shall be maintained in which the quantity ofdieselfuel that is burned in Boilers AandB during each calendar monthisrecorded.Thislogshallbekeptonthe premises and be available for inspection by Bureau representatives upon requestduringnormal business hours.The informationinthislogshallbe maintainedfora period oftwo(2)yearsafteritsdate ofentry.These requirementsarein accordance with"Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units," Title 40 Code of Federal RegulationsPart60, Subpart Dc,§60.48c(g)and(i),as adoptedat§41, Rule15,the Regulation.

5.Emissions of nitrogen oxides(NOx)fromBoilersAandB combinedshallnotexceed9.0tonsduringany period of365consecutivedays.

Compliancewiththisemission limitationshallbe accomplishedbyadherencetothefollowing limitations:

a.The maximum allowable emissions of NOx from each of the two boilers are 9.0 pounds/hour.b.Thesum ofthetotal amount oftimeduring which BoilerAisin operationandthe total amount of time during which BoilerBisin operationshallnot exceed 2,000 hours0 days <br />0 hours <br />0 weeks <br />0 months <br /> during any period of 365 consecutive days.6.Alogshallbe maintainedinwhichthedailyhours ofoperationforeach ofBoilersAandBarerecorded.Thislogshallbekeptonthepremisesandbeavailablefor inspection by Bureau representativesuponrequestduringnormalbusinesshours.Theinformationinthislogshallbe maintainedforaperiod oftwo(2)yearsafteritsdate of entry.7.AwrittenreportshallbesubmittedbyMay17 ofeachyearnotifyingtheBureauDirector ofthetotal number ofhoursthateach ofBoilersAandBwere operatedduringthe preceding twelve (12)months.8.Themaximumallowableemissions ofparticulatematterfromeach ofBoilersAandB are 0.030 pound per 106 Btu.This emission limitation is equivalent to 1.64 pounds/hourfortheoperation ofeachboileratitsheatinputcapacity.Thisemissionlimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41, Rule 27.3, the Regulation.

9.Visible emissionsfromBoilersAandBshallnotexceedten(10) percentopacityforan aggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours.Thislimitationisreasonableandproper,as determinedbytheBureau Director, in accordancewith§41,Rule27.3,the Regulation.

Tennessee Valley Authority-SequoyahNuclear PlantPage3 of 3 Special Conditions for Federally Enforceable Certificate of Operation No.4150-10200501-08C 10.Visible emissions from BoilersAandBshallnot exceed twenty (20)percent opacity on averageinany period ofsix(6)minutes, exceptforonesix (6)-minute periodinany period of one hour in which visible emissionsshallnot exceed twenty-seven (27)percent opacityonaverage.This limitationisin accordance with"Standards of Performance for Small Industrial-Commercial-Institutional Steam Generating Units,"Title40 Code of Federal Regulations Part 60, Subpart Dc,§60.43c(c), as adoptedat§41,Rule15,the Regulation.

11.Testing of either BoilerAorBto determine the emissions of particulate matter, sulfur dioxide (SO2), nitrogen oxides(NOx),and carbon monoxide(CO)andto determine the opacity of the emissions may be requiredbythe Bureau Director.If required, these tests shall,ata minimum, consist ofandbe performed in accordance with EPA Test Methods1,2,3,4,5,6,7,9,and10,Title40 Code ofFederalRegulationsPart60, Appendix Aandin accordance with§3,the Regulation.

12.If BoilerAorB operatesinsucha mannerastoviolateany of the requirements contained in these special conditions, the owner or operator shall promptly notify the Bureau Director within twenty-four hours oftheonset of the violation,anda writtenreportshall be submittedtothe Bureau Director within seven (7)days of the onset, in accordance with§12(e), the Regulation.13.The Tennessee Valley Authorityandthe Bureau mutuallyagreeto reopen this federally enforceable certificate of operation upon promulgation ofanynewfederal requirement that would be applicabletoeither ofthetwoauxiliaryboilers iftheeffectivedate of the requirementisnot later thanthedateonwhichthis certificateisduetoexpire.14.This federally enforceable certificate of operationisnot transferablefromonepersontoanotherperson,orfromoneairpollutantsourcetoanotherairpollutantsource,orfrom one location to another location.

CHATTANOOGA-HAMILTON COUNTY AIR POLLUTION CONTROL BUREAU Tennessee Valley Authority-Sequoyah Nuclear Plant Special Conditions for Certificate of Operation 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 of the Ordinance,theconditionsandlimitationsofthis certificate shall control.1.Theparticulatematteremissionsourcesofthecarpentershoparetworadial-armsaws,atablesaw,abandsaw,aplaner,andtwofloorvents.Themaximumallowableemissions ofparticulatematterfromall oftheseemissionsourcescombinedare1.42 pounds/hour,inaccordancewith§41,Rule10.3,theHamiltonCountyAirPollutionControl Regulation (the Regulation).2.Visibleemissionsfromthecarpentershopshallnotexceedtwenty(20)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours,inaccordancewith§41,Rule3, the Regulation.3.Testing of any oftheemissionsources ofthecarpentershoptodeterminetheemissions of particulatematterandtodeterminetheopacity oftheemissionsmayberequiredbythe Director, the Chattanooga-Hamilton County Air Pollution Control Bureau (the Bureau).If required,thesetestsshall,ataminimum, consist ofandbe performedinaccordance with EPA Test Methods1,2, 3,4,5,and9,Title40 Code of Federal Regulations Part 60, AppendixAandin accordance with§3,the Regulation.

4.If the carpentershopis usedinsucha mannerasto violate any of the requirements contained in these special conditions, the owner or operator shall promptly notify the Bureau Director within twenty-four hours oftheonset of the violation,andawritten reportshallbe submittedtothe Bureau Director within seven(7)days oftheonset,in accordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTY AIR POLLUTION CONTROL BUREAU TennesseeValleyAuthority-Sequoyah NuclearPlantPage1 of 2 Special Conditions for Certificate of Operation No.4150-30900203-10C ExpirationDate:July 17,2012 The owner and operator ofthissourceshalladheretoall provisions of the Chattanooga Air PollutionControlOrdinance(theOrdinance)inadditiontothefollowingconditionsand limitations ofthiscertificate ofoperationthroughoutitsterm.Anyviolation oftheOrdinanceorthefollowingconditionsandlimitationsmayleadtoenforcementactionbytheChattanooga-HamiltonCountyAirPollutionControlBureauorBoardorbytheU.S.Environmental Protection Agency.Provided,however,intheeventthatthefollowing conditionsorlimitationsaremorestringentthanany provision oftheOrdinance,theconditionsandlimitations of this certificate shall control.1.Particulate matter emissionsfromtheabrasiveblasting operationshallbecontained within an enclosure and ventedtoand controlledbyafilter that completely covers any exhaustintakeorby another piece of control equipmentthathasan equivalentorgreaterparticulatemattercontrolefficiency.Theblastingoperationshallnotbeused ifthefilterforany exhaustintakeisnotinplace.These requirements are reasonableandproper,asdeterminedbytheDirector,theChattanooga-HamiltonCountyAirPollutionControlBureau(theBureau),inaccordancewith§41,Rule27.3,theHamiltonCountyAir Pollution Control Regulation (the Regulation).2.The maximumallowableemissions ofparticulatematterfromtheabrasiveblastingoperationare0.30pound/hour.Thisemissionlimitationisreasonableandproper,as determinedbythe BureauDirector,in accordancewith§41,Rule27.3,theRegulation.

3.Visible emissionsfromany exhauststackthat serves the abrasive blasting operation shall not exceedten(10)percent opacityforan aggregate ofmorethanfive(5) minutesinany period of one hourormorethan twenty (20)minutesinany period of twenty-four hours.This limitation is reasonableandproper,as determinedbythe BureauDirector,in accordance with§41, Rule27.3,the Regulation.

4.Visible emissionsfromthe building or other enclosure that the abrasive blasting operation is performedinshallnotexceedfive(5) percent opacityforanaggregate ofmorethanfive(5) minutesinany period ofonehourormorethan twenty(20)minutesin any period of twenty-fourhours.This limitation is reasonableandproper,as determinedbythe Bureau Director, in accordancewith§41,Rule27.3,the Regulation.

TennesseeValley Authority-Sequoyah Nuclear PlantPage2 of 2 Special Conditions for Certificate of Operation No.4150-30900203-1OC5.Testing oftheabrasiveblastingoperation,ascontrolled,todeterminetheemissions of particulate matterandtodeterminetheopacity of the emissionsmayberequiredbythe Director, the Chattanooga-Hamilton County Air Pollution Control Bureau(theBureau).

Ifrequired,thesetestsshall,ataminimum,consist ofandbe performedinaccordance with EPA Test Methods1,2,3,4,5,and9,Title40 Code of Federal RegulationsPart60, AppendixAandin accordance with§3,the Regulation.

6.Iftheabrasiveblastingoperationisperformedinsuchamannerastoviolateany of the requirements containedinthesespecialconditions,the owner or operatorshallpromptlynotifythe Bureau Director within twenty-four hours oftheonset oftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)days of theonset,in accordance with§12(e),the Regulation.

CHATTANOOGA-HAMILTON COUNTY AIR POLLUTION CONTROL BUREAU Tennessee Valley Authority-Sequoyah Nuclear PlantPage1 of 3 Special Conditions for Federally Enforceable Certificate of Operation No.4150-20200102-11C ExpirationDate:July17,2012 The owner and operator ofthissourceshalladheretoall provisions of the Chattanooga Air Pollution Control Ordinance (the Ordinance) in additiontothe following conditions and limitations ofthisfederally enforceable certificate of operation throughoutitsterm.Any violation oftheOrdinanceorthefollowingconditionsandlimitationsmayleadtoenforcementactionbythe Chattanooga-HamiltonCountyAir Pollution Control BureauorBoardorbythe U.S.Environmental Protection Agency.Provided, however,inthe event that the following conditions or limitationsaremore stringentthanany provision of the Ordinance,theconditions and limitations of this certificateshallcontrol.Each of the following conditionsisfederally enforceableforthe purpose of synthetic minorsourcestatus.1.Only dieselfuel(No.2fueloil)maybe burned in Emergency Generators 1A, IB, 2A, and 2B and Blackout Generators 1 and 2.The sulfur content of the diesel fuel that is burnedinthesix generatorsshallnotexceed0.06(zero pointzerosix)percentbyweight.(The heat input capacities are 38.4 x 106 Btu/hour for each of the four emergency generators and 18.5 x 106 Btu/hour for each of the two blackout generators.)2.The sulfur content of each shipment ofdieselfuel that is receivedatthefacilityfor combustioninany ofthesix generatorsshallbe documentedbya written certificationfromthesupplier.Thesecertificationsshallbekeptonthepremisesandbeavailablefor inspection by representatives oftheChattanooga-HamiltonCountyAirPollutionControl Bureau (the Bureau)upon requestduringnormal businesshours.Each certification shall be maintainedfora period oftwo(2)yearsafteritisreceived.3.Emissions ofnitrogenoxides(NOx)fromthesixgeneratorscombinedshallnotexceed70.992tonsduringanyperiod of365consecutivedays.Compliancewiththisemissionlimitationshallbeaccomplishedbyadherencetothefollowinglimitations:a.Themaximumallowableemissions ofNOxfromeach ofEmergencyGenerators1A, IB,2A,and2Bare140.0 pounds/hour.

b.The maximum allowable emissions of NOx from each of Blackout Generators 1and2are68.0 pounds/hour.c.Thesixgeneratorsshalleachbeoperatedfornomorethan204hoursduringany period of 365 consecutive days.

Tennessee Valley Authority-Sequoyah Nuclear PlantPage2 of 3 Special Conditions for Federally Enforceable Certificate of Operation No.4150-20200102-11C4.Thesix generators shall each be continuously operatedfora period of no more than five (5)consecutive days, in accordance with§41, Rule 2.7, the Hamilton County Air Pollution Control Regulation (the Regulation).5.Alogshallbe maintainedinwhichthedailyhours of operationforeach ofthesix generatorsarerecorded.Thislogshallbekeptonthe premisesandbeavailablefor inspection by Bureau representativesuponrequestduringnormalbusinesshours.The informationinthislogshallbe maintainedforaperiod oftwo(2)yearsafteritsdate of entry.6.A writtenreportshallbe submittedbyMay17 ofeachyear notifying the Bureau Director ofthetotal number ofhoursthateach ofthesix generators were operatedduringthe preceding twelve (12)months.7.The maximum allowable emissions of particulate matterfromeach of Emergency Generators 1A, IB,2A,and2Bare4.07 pounds/hour, in accordance with§41,Rule10.2, the Regulation.8.The maximum allowable emissions of particulate matterfromeach of Blackout Generators1and2are1.80 pounds/hour.

This emission limitation is reasonable andproper,as determinedbythe BureauDirector,in accordancewith§41,Rule27.3,the Regulation.9.Visible emissions from EmergencyGenerators1A,IB,2A,and2Bshallnotexceedtwenty(20) percent opacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours,in accordance with§41, Rule3,the Regulation.

10.Visible emissions from Blackout Generators1and2 shall not exceed ten (10)percentopacityforanaggregate ofmorethanfive(5)minutesinanyperiod ofonehourormorethantwenty(20)minutesinanyperiod oftwenty-fourhours.Thislimitationisreasonableandproper,asdeterminedbytheBureauDirector,inaccordancewith§41,Rule27.3,the Regulation.11.Testing of any ofthesixgeneratorstodeterminetheemissions ofparticulatematter,sulfurdioxide(SO2),nitrogenoxides(NOx),andcarbonmonoxide(CO)andtodeterminetheopacity oftheemissionsmayberequiredbytheBureauDirector.Ifrequired,thesetestsshall,ataminimum,consist ofandbeperformedinaccordancewith EPA Test Methods1,2,3,4,5,6,7,9,and10,Title40 Code of Federal Regulations Part 60, AppendixAandin accordancewith§3,the Regulation.

TennesseeValleyAuthority-SequoyahNuclearPlantPage3 of 3 Special Conditions for Federally Enforceable Certificate of Operation No.4150-20200102-11C 12.If any ofthesix generatorsoperatesinsuchamannerastoviolateanyoftherequirementscontainedinthesespecial conditions,theowneroroperatorshall promptlynotifytheBureauDirectorwithintwenty-fourhours oftheonset oftheviolation,andawrittenreportshallbesubmittedtotheBureauDirectorwithinseven(7)days of the onset, in accordance with§12(e),the Regulation.13.TheTennesseeValleyAuthorityandtheBureaumutuallyagreetoreopenthis federallyenforceablecertificate ofoperationuponpromulgation ofanynewfederal requirementthatwouldbeapplicabletoanyofthesix generatorsiftheeffectivedateoftherequirementisnotlaterthanthedateonwhichthiscertificateisduetoexpire.14.Thisfederallyenforceablecertificate ofoperationisnottransferablefromonepersontoanotherperson,orfromoneairpollutant sourcetoanotherairpollutant source,orfrom one location to another location.