ML17273A043

NPDES Permit Fl 0002208,issued to Fl Power & Light

ML17273A043
Person / Time
Site:	Saint Lucie
Issue date:	01/29/1982
From:	TRAINA P J ENVIRONMENTAL PROTECTION AGENCY
To:
Shared Package
ML17212B369	List: ML17212B368 ML17273A042 ML17273A043
References
FL-0002208, FL-2208, NUDOCS 8202100393
Download: ML17273A043 (53)

Text

{{#Wiki_filter:Permo.:FL0002208 UNITEDSTATESENVIRONMENTAL PROTECTION AGENCYREGIONIV545COURTLAND STREETATLANTA,GEORGIA30363AUTHORIZATION TODISCHARGE UNDERTHENATIONALPOLLUTANT DISCHARGE ELIMINATION SYSTEMIncompliance withtheprovisions oftheCleanWaterAct,asamended(33U.S.C.1251et.seq;the"Act"),\FloridaPowerandLightCompanyPostOfficeBox529100Miami,Florida33152isauthorized todischarge fromafacilitylocatedatSt.LucieNuclearPowerPlantUnits1and2Hutchinson IslandSt.LucieCounty,Floridatoreceiving watersnamedAtlanticOceanfromdischarge pointsenumerated herein,,asserialnumbers001,002,003,004,005,006,007and008inaccordance witheffluentlimitations, monitoring requirements andotherconditions setforthinPartsI,II,andIIIhereof.Thepermitconsistsofthiscoversheet,PartIllpages(s), PartII12page(s)andPartIII3page(k).Thispermitshallbecomeeffective on4AN391982Thispermitandtheauthorization todischarge shallexpireatmidnight, JAN88,Igg7,JAN2919S2DateSignedPaulJ.TrainaDirectorWaterManagement Division(c~A~,.8iOZ>00393 aaO<ZS.;;'-PDR*DOCK05000335g.-':.:0;-'" '..;~,PDR, A.EFFLUENTLL~IITATIONS AND41ONIYORING REQUIREMEN'I'S Duringtheperiodbeginning oneffectivedateandlastingthroughstartofUnit2chlorination thepermittee isauthorized todischarge fromoutfall(sl serialnumber(s) 001-Condenser coolingwaterandauxiliary coolingwaterdischarged totheAtlanticOcean(includes otherplanrwastes).Suchdischarges shallbelimitedandmonitored bythepermittee asspecified below:EffluentCataractristicDischargeLimitationsMonitoring Requirements Instantaneous MaximumMeasurement Frequency Sample'I'ypeFlow-m/Day(MGD)N/ADischarge Temperature C(F)0045(113)1/Temperature RiseC(F)16.7(30): 1/TotalResidualOxidants-auxiliary systems(mg/1) 0.03TotalResidualOxidants-coedenser (mg/1)0.102/MixingZoneTemperature C(1')3/Gondenser ChlorineAddition(minutes/day) 120Discharge ofintakescreenbackwashispermitted withoutlimitatrequirements. HourlyHourlyHourly1/week1/weekN/AN/APumplogsRecorders Recorders MultipleGrabsMult'pieGrabsN/AN/Aionormonitoring Auxiliary coolingwatersystensforUnitImaybecontinuously chlorinated; however,TROshallnotexceedanaximuminstantaneous concentration of0.03mg/1priortoentryintotheAltanticOceanattimeswhenonlythissourceand/orthesewagetreatment plantisbeingchlorinated. Anintensive samplingprogramshallbeinstituted foratleast30daysfollowing startof.systemchlorination toassurecompliance. IntheeventthatTROlevelsattheterminusofthedischarge canalequalorexceed0.02mg/1,permittee shallimnlement aminimization studvasindicated inPartIII.J.Permittee shallinvestigate theavailability ofcontinuous recording TROmonitorswithlowlevelsofsensitivity (0.01to0.03mg/1)andshallfieldtestsuchunit(s).NotlaterthanthestartofAuxiliary coolingwatersystemchlorination, permittee shallinstallacontinuous TROrecorder, ifanacceptable deviceisfound,attheterminusofthedischarge canal.I;ntheeventthatacontinuous recordercannotbeinstalled bystartofchlorination, effortsshallcontinue(withprogressreportssubmitted quarterly) andmonitoring forTROshallbe1/weekonnotlessthansixgrabsamplesduringdaylighthours.Additional grabsamplesshallbeconducted duringperiod(s) ofTROdischarge fromcondensers. io00ea:oC)C)oC7(CONTINUED) A.EFFLUENTLL11STATIONSANDillONITORING REQUIREMEN1'S Duringtheperiodbeginning oneffectivedateandLastingthroughstartofUnit2chlorination thepermittee isauthorized todischarge fromoutfall{sl serialnumbcr{s) 001-Condenser coolingwaterandauxiliary coolingwaterdischarged totheAtlanticOcean(includes otherplantwastes)~(CONTINUED) (aSamplestakenincompliance withthemonitoring requirements specified aboveshallhctaken<<tthefollowing lacation{s). Intaketemperature andflowatplantintakeandallpchargecanalpriortodischarge totheAtlanticOcean.1/Underthefollowing conditions themaximumdischarge temperature shallbelimitedto47.2C(117F)andthetemperature riseto17.8(32): (1)Condenser and/orcir-culatingwaterpumpmaintenance, (2)trottling circulating waterpumpstominimizeuseocofhlrineand(3)foulingofcirculating watersystem.Intheeventthat00discharge temperature exceeds45C(113F)permittee shallnotifytheCie,aerPermitsBranchinamannersimilartothatprovidedforinPartII.A.3.c. (5days).2/Totalresidualoxidants(TRO)shallnotexceedamaximuminstantaneous concentration of0-10mg/l. TROshallnotbedischarged fromUnit1condensers formorethantwohoursperday.exceed36.1C(97P)asaninstan-3/,Theambientoceansurfacetemperature snailnotexceeataneousmaximumatanypoint.C)C)O A.EFFLUENTLLillTATlONS ANDhlOYITORlNG REQUIREMEN'1'8 Duringtheperiodbeginning onstartofUnit2chlorination andlastingthroughexpiration thepermittee isauthorized todischarge fromoutfall(sl serialnumber(s) 001and008-Condenser coolingwaterandauxiliary, coolingwaterdischarged totheAtlanticOcean(includes otherplantwastes)fromUnits1and2,respectively. Suchdischarges shallbelimitedaridmonitored bythepermitted asspecified below:EffluentCharactristicDischareLimitations h1onitoring Requirements Instantaneous Measurement SampleMaximumFrequency TypeFlow-m3/Day (MGD)00Discharge Temperature C(F)00Temperature RiseC(F)TotalResidualOxidants-auxiliary systems.'gmg/1) TotalResidualOxidants-condensers (mg/1)FreeResidualOxidantsfmg)l)MixingZoneTemperature C(F)Condenser ChlorineAddition(minutes/day/unit) N/A45(113)1/16.7(30)1/0.030.10SeeBelow36.1(97)2/120perunitHourlyHourlyHourly1/week1/week1/weekSeeDailyPumplogsRecorders Recorders MultipleGrabsMultipleGrabsMultipleGrabsP~rtIII.I.T,ngDischarge ofintakescreenbackwashispermitted withoutlimitation ormonitoring requirements. Freeavailable oxidantsshallnotexceedandaverageconcentration of0.2mg/1andamaximuminstantaneous concentration of0.5mg/1attheoutletcorresponding toanin-dividualcondenser duringanychlorination period.Neitherfreeavailable oxidants(FAO)nortotalresidualoxidants(TRO)maybedischarged fromeitherunitcondensers formorethantwohoursinanyonedayandnotmorethanoneunitmaydischarge FAOorTROfromitscondensers atanyonetime.Additionally, TROshallnotexceedamaximuminstantaneous concentration of0.10mg/1atanytimeasmeasuredinthedis-chargecanalpriortodischarge totheAtlanticOcean.Auxiliary coolingwatersystemsforUnit1maybecontinuously chlorinated; however,TROshallnotexceedamaximuminstantaneous concentration of0.03mg/lpriortoentryintotheAltanticOceanattimeswhenonlythesesourcesand/orthesewagetreatment plantarebeingchlorinated. Anintensive samplingprogramshallbeinstituted foratleast30daysfollowing startofsystemchlorination toassurecompliance. IntheeventthatTROlevelsattheterminusofthedischarge canalequalorexceed0.02mg/1,permittee shallimplement arinimization studyasindicated inPartIll.J.0ma3gAlp'C')C)C)C)(CONTINUED) A.EFFLUENTLDIITATIONS ANDhIONIYORING REQUIREMEN'I' Duringtheperiodbeginning onstartofUnit2chlorination andlastingthroughexpiration thepermittee isauthorized todischarge fromoutfall(sl serialnumber(s) 001and008-Condenser coolingwaterandauxiliary coolingwaterdischar"ed totheAtlanticOcean(includes otherplantwastes)fromUnits1and2,respectively. (CONTINUED) Notlaterthanthreeyearsafterpromulgation orJuly1,1987,whichever isearlier,thereshallbenodischarge ofTRO.Notwithstanding theforegoing, thepermittee mayuponsuccessfully showingtheDirector, WaterManagement

Division, thatthefacilitymustusechlorineforcoolingwatersystembiofouling control,discharge theminimumamountofTROnecessary tooperatethefacility.

InnocaseshallTRObedischarged formorethantwohoursperdaynorshalltheTROexceedaninstantaneous maximumof0.0lmg/lattheterminusofthedischarge canal.Notlaterthanoneyearafterpromul-gation,permittee shallsubmitaproposedimplementation scheduletoexpeditiously pro-videcontrolsnecessary tocomplywiththeserequirements. Note:IntheeventthatBATregulations forcontrolofTROorchlorinearepromulgated inamannerinconsistent withtheOctober14,1980,proposedguidelines, requirements ofthisparagraph willbemodi-fiedconsistent withthepromulgated regulations (40CFR423).Permittee shallinvestigate theavailability ofcontinuous recording TROmonitorswithlowlevelsofsensitivity (0.01to0.03mg/l)andshallfieldtestsuchunit(s).NotlaterthanthestartofAuxiliary coolingwatersystemchlorination, permittee shallinstallacontinuous TROrecorder, ifanacceptable deviceisfound,attheterminusofthedischarge canal.Intheeventthatacontinuous recordercannotbeinstalled bystartofchlorination, effortsshallcontinue(withprogressreportssubmitted quarterly) andmonitoring forTROshallbe1/weekonnotlessthansixgrabsamplesduringdaylighthours.Additional grabsamplesshallbeconducted duringperiod(s) ofTROdischarge fromcondensers. Samplestakenincompliance withthemonitoring requirements specified aboveshallbetakenatthefollowing location(s): Intaketemperature andflowatplantintakesandallotherparameters inthedischarge canalpriortodischarge totheAtlanticOcean,exceptthatTROandFROshallalsobemonitored atthecondenser discharge foreachUnitpriortoentryintotheplantdischarge canal.1/Underthefollowing conditions themaximumdischarge temperature shallbelimited00to47.2C(117F)andthetemperature riseto17.8(32): Condenser and/orcircu-=latingwaterpumpmaintenance, and(2)foulingofcirculating watersystem.Intheeventthatdischarge temperature exceeds45C(113F)permittee shallnotify.theChiefWaterPermitsBranchinamannersimilartothatprovidedforinPartII.A.3.c.(5days).2/Theambientoceansurfacetemperature shallnotexceed36.1.C(97F)asanin-stantaneous maximumatanypoint. A.EFFLUENTLL~IITATIONS ANDMONITORING REQUIREMENTS Duringthe periodbeginning ontheeffective dateofthispermitandlastingthepermittee isauthorized todischarge frumoutfall(sl serialnumber(s) 0021/-LowintakecanalfromVnits1and2Suchdischarges shallbelimitedandmonitored bythepermittee asspecified below:throughexpirationvolumewastedischarge toEffluentCharacteristic DailyAvgDailyMaxDailyAvgDailyMaxDischarge Limitations kg/day(lbs(day) OtherUnits('mg/l)Measurement Frequency SampleTypeMonitoring ltequirements Flow-m3(Day (MGD)N/AN/AOilandGreaseAl(90)55(120)TotalSuspended Solids82(180)270(600)Priortothestartofdischarges fromVnitthelimitation shown.N/A1530N/A201001/week1/week1/weekCalculation GrabComposite 2,quantitylimitations shallbeone-halfofXntheeventthat.thiswasteisdirectedtoanevaporation/percolation pondfromwhichthereisnodischarge, theseeffluentlimitations andmonitoring requirements willnotapplv~ThepHshallnotbelessthan6~0standardunitsnorgreaterthan9~0standardunitsandshallbemonitored 1/batchonagrabsample.Thereshallbenodischarge offloatingsolidsorvisiblefoaminotherthantraceamounts.Samplestakenincompliance withthemonitoring requirements specified aboveshallbetakenatthef~>llowinv. hr-;uion(s):. ischargefromtheneutralization basinpriortomixingwithanyotherwastestream.1/Serialnumberassignedforidentification andmonitoring purposes. '0900lDZHCC)C)h>C)CO A.EFFLUENTLDIITATIONS ANDMONITORING REQUIREMENTS Duringtheperiodbeginning ontheeffective dateofthispermitandlastingthroughexpiration thepermittee isauthorized todischarge fromoutfall(sl serialnumber(s) 0031/-Pre-opera tionalmetalcleaningwastesfromUnit2andsimilarcleaningoperations discharged todischarge canalSuchdischarges shallbelimitedandmonitored bythepermittee asspecified below:Monitormg Requirements Disrharge Limitations kg/batch(lbs/batch) OtherUnitsImg/1)EffluentCataractristicSampleTypeMeasurement Frequency ThepHshallnotbelessthan6.0standardunitsnorgreaterthan9.0standar<l unitsandshallbemonitored onrepresentative grabsamples.DailyAvgDailyMax0Flow-m3/Day(MGD)2/N/AN/AI./dayDetermination (s)OilandGrease2/15202/GrabTotalSuspended Solids2/301002/Composite Copper,Total2/1.01.02/Composite Iron,Total2/1.01.02/Composite Phosphorus asP2/1.01.02/Composite Metalcleaningwastesshallmeananycleaningcompounds, rinsewaters,oranyotherwater-borneresiduesderivedfromcleaninganymetalprocessequipment. Thequantityofpollut-antsdischarged fromthissourceshallnotexceedthequantitydetermined bymultiplying theflowofmetalcleaningwastestimestheconcentrations listedabove.Intheeventthatthiswasteisdirectedtoanevaporation/percolation pondfromwhichthereisnodischarge, theseeffluentlimitations andmonitoring requirements willnotapply.Thereshallbenodischarge offloatingsolidsorvisiblefoaminotherthantraceamounts.Samplestakenincompliance withthemonitoring requirements specified aboveshallhelak<<natthefoll<<winy, in<ation(s): discharge fromthemetalcleaningwastestreatment facility(s) priortomixingwithanyotherwastestream.3w~zH~JrCDooOOQ1/Serialnumberassignedforidentification andmonitoring purposes. 2/Thetotalquantityofeachpollutant discharged shallbereported. Innocaseshallthequantitydischarged exceedthequantitydetermined bymultiplying thevolumeof.thebatchofmetal.cleaningwastegeneratedtimestheconcen-trationsnotedabove(i.e.,3.8kg(8.3lbs)ofiron,copperandphosphorus; 57kg(125lbs)ol'iiIan<Igrease,and114kg(250ebs)oftotalsuspended solidspermi1lionga1ionaofmeta'Icleaningwastegenerated) .Thepermitteeshitteeshallolutantsalsoreportthefrequenry ofmeasurem<nt <<sedtoadequately quantifythepollutandischarged. Totalvol<<meofwastewater generated anddischarge shallbereported-A.EFFLUENTLLiIITATIONS ANDMONITORING REQUIIKEMENTSDuringtheperiodbeginning ontheeffective dateofthispermitandlastingthroughexpiration thepermittee isauthorized todischarge fromoutfall(sl serialnumber(s) 0041/-RadwasteSystemDischarge todischarge canalfromUnits1and2.Suchdischarges shallbelimitedandmonitored bythepermittee asspecified below:EffluentCharacteristic Disrharge Limitations Monitoring Requirements kg/day(lbs/day) OtherUnits(mg/l)Measurement SampleDailyAvgDailyMaxDailyAvgDailyMaxFrequency TypeFlow-mDaMGDN/AN/AN/AN/A1/batchCalculation OilandGrease4.1(9.0)5.5(12.0) 15ow-m/ay()TotalSuspended Solids8.2(18)27.0(60.0) 30Priortothestartofdischarges fromUnit2,quantitylimitations shallbeone-halfofthelimitation shown.Intheeventthatmetalcleaningwastesaredischarged throughthisserialnumber,limi-tationsshallnotexceedthoseprovidedforoutfallserialnumber003.Thisdischarge isregulated bytheNuclearRegulatory Commiss~on undertheprovisions ofitsocratinglicenseandismonitored andreportedtotheNuclearRegulatory Commission. Noadditional monitoring oftheradiological aspectsofthisdischarge arerequiredherein.ThepHshallnotbelessthanN/Astandardunitsnorgreaterthan9.0standar~l unitsandshallbemonitored 1/batch.Thereshallbenodischarge offloatingsolidsorvisiblefoaminotherthantraceamounts.Samplestakenincompliance withthemonitoring requirements specified aboveshallhetak<<natthefollowinv, iof'uion(s): discharge fromtheradwastesystempriortomixingwithanyotherwastestream.1/Serialnumberassignedforidentification andmonitoring purposes. 2/Ifradwastes ispassedthroughfilteranddemineralizer system,samplingshallbe2/monthonrepresentative batches.Ifdataforaone-yearperiod.indicates thatalloilandgreasedeterminations arelessthan10mg/1,thismonitoring maybediscontinued. n9mZMIrC)C)C)C)CO A.EFFLUENTLL~IITATIONS ANDMONITORING REQUIREMENTS Duringtheperiodbeginning ontheeffective dateofthispermitandlastingthroughexpiration thepermittee isauthorized todischarge fron>outfall(sl serialnumber(s) 0051/-Dewatering wastesfromUnit2construction discharged tointakeordischarge canalSuchdischarges shallbelimitedandmonitored bythepermittee asspecified below:EffluentCharacteristic Discharge Limitations Monitoring Requirements DailyMaxFlow-m3/Day (MGD)N/ATotalSuspended Solids(mg/1)55DailyAvgN/A115hleasurement Frequency 2/month2/monthSampleTypeCalculation GrabThereshallbenodischarge offloatingsolidsorvisiblefoaminotherthantraceamounts.Samplestakenincompliance withthemonitoring requirements specified aboveshallhetakenatthefollowing i:iation(s): point(s)discharge priortoenteringtheintakeordischarge canals.1/Serialnumberassignedforidentification andmonitoring purposes. 'aAp)gCQO2HI00rC)C)C)hDC)CO A.EFFLUENTLLilITATIONSANDMONITORING REQUIREMEN'I'S Duringtheperiodbeginning oneffective dateandlastingthroughexpiration thepermittee isauthorized todischarge fromoutfall(sl serialnumber(s) 0061/-SewageTreatment PlantDischarge Suchdischarges shallbelimitedandmonitored bythepermittee asspecified below:EffluentOtaracteristic Discharge Limitations mg/1(except asnoted)DailyAvg.DailyMax.Measurement Frequency SampleIypeMonitoring Requirements Flow-m/Day(MGD)N/ABOD530TotalSuspended Solids30FecalColiformorganisms/100 mlN/A64(0.017) 6060N/A1/week1/quarter 1/quarter 1/quarter Instantaneous Grab2/Grab2/GrabInadditiontothespecificlimits,thedailyaverageeffluentBOD5andsuspended solidsconcentrations shallnotexceed10percentoftherespective dailyaverageinfluentcon-centrations. Effluentshallbeaerobicatalltimes.ThepHshallnotbelessthan6.0standardunitsnorgreaterthan9.0standanlunitsandsl.alll)elclotlltc)f d1/week.Thereshallbenodischarge offloatingsolidsorvisiblefoaminotherthantraceamounts:Samplestakeninrompliance withthemonitoring requirements specified aboveshalll)rt;tkrnattltefcllo>>to~tc)cat'.o .(:):Sewagetreatment plantdischarge priortomixingwithanyotherwastestreams.1/Serialnumberassignedforidentification andmonitoring purposes. 2/InfluentandeCflucnt. AC)C)0ogCh)rtMI0CDCDCDCD00 A.EFFLUENTLL~IITATIONS ANDMONITORING REQUIREMENTS Ouringthe periodbeginning oneffectivedateandlastingthroughexpiration thepermittee isauthorized todischarge fromoutfall(sl serialnumber(s) 0073./-SteamCleanupSystemBlowdowntodischarge canalfromUnits1and2Suchdischarges shallbelimitedandmonitored bythepermittee asspecified below:EffluentCataractristicDischarge Limitations Monitoring Requirements Flow-m3/Day (MQD)OilandGreaseimg/1)TotalSuspended SolidsTotalIron(mg/1)TotalCopper(mg/1)DailyAvg.N/A15(mg/l)301.01.0DailyMax.m/A201001.01.0Measurement Frequency 2/2/2/2/2/SampleTypeCalculation GrabGrabGrabGrabThereshallbenodischarge offloatingsolidsorvisiblefoaminotherthantraceamounts.S!amp!estakenin<<ompliance withthemonitoring requirements specified aboveshallh<<taken<<lthefcitloiAA" ~orat'.o'.I..): point(s)ofdischarge priortoenteringthedischarge canal.2/Oneerdis1/Serialnumberassignedforidentificatio dicaionanmonitoring purposes. neperdischarge eventoroneperweekwhichevr.fvolumieverismore.requent. Totalumeofbatchandperiodofdischarge shallbereported't$egCh)rtHIoaCDCo PARTIPageI-11permitNo.FL0002208B.SCHEDULEOFCOWIPLIANCE 1.Thepermittee shallachievecompliance withtheeffluentlimitations specified fordischarges inaccordance withthefollowing schedule: a.Alleffluentlimitations shallbemetoneffective dateorstartofdischarge b.Aquaticmonitoring program(PartIII.F.)(1)Implement -'Continuing (2)AnnualReports-April30ofeachyearC~Discharge structure operation (PartIII.G.)(1)Operational scheme-December31,1981operation ofUnit2condenser pumpsa.ThermalPlumeMonitoring (PartIII.I.)(1)StudyPlan-ThreemonthspriortofuelloadingofUnit2(2)Report-15monthsaftercommercial operation dateofUnit2e.Auxiliary CoolingSystemChlorineMinimization (PartIII.J)(1)Implement -Startofsystemchlorination (2)Statusreports-Quarterly (4reports)(3)FinalReport-15monthsafterimplementation 2.Nolaterthan14calendardaysfollowing adateidentified intheabovescheduleofcompliance, thepermittee shallsubmiteitherareportofprogressor,inthecaseofspecificactionsbeingrequiredbyidentified dates,awrittennoticeofcompliance ornoncompliance. Inthelattercase,thenoticeshallincludethecauseofnoncompliance, anyremedialactionstaken,andtheprobability ofmeetingthenextscheduled requirement. ,PartIIPageII-1A.MANAGEMENT REQUIREMENTS 1.Discharge Violations Alldischarges authorized hereinshallbeconsistent withthetermsandconditions ofthispermit.Thedischarge ofanypollutant morefrequently than,oratalevelinexcessof,thatidentified andauthorized bythispermitconstitutes aviolation ofthetermsandconditions ofthispermit.Suchaviolation mayresultintheimposition ofciviland/orcriminalpenalties asprovidedinSection309oftheAct.2.ChangeinDischarge Anyanticipated facilityexpansions, production increases, orprocessmodifications whichwillresultinnew,different, orincreased discharges ofpollutants. mustbereportedbysubmission ofanewNPDESapplication atleast180dayspriortocommencement ofsuchdischarge. Anyotheractivitywhichwouldconstitute causeformodification orrevocation andreissuance ofthispermit,asdescribed inPartII(B)(4)ofthispermit,shallbereportedtothePermitIssuingAuthority. 3.Noncompliance Notification a.Instances ofnoncompliance involving toxicorhazardous pollutants shouldbereportedasoutlinedinCondition 3c.Allotherinstances ofnoncompliance shouldbereportedasdescribed inCondition 3b.b.Ifforanyreason,thepermittee doesnotcomplywithorwillbeunabletocomplywithanydischarge limitation specified inthepermit,thepermittee shallprovidethePermitIssuingAuthority withthefollowing information atthetimewhenthenextDischarge Monitoring Reportissubmitted. (1)Adescription ofthedischarge andcauseofnoncompliance; (2)Theperiodofnoncompliance, including exactdatesandtimesand/oranticipated timewhenthedischarge willreturntocompliance; and(3)Stepstakentoreduce,eliminate, andpreventrecurrence ofthenoncomplying discharge. PartIIPageII-2c.Toxicorhazardous discharges asdefinedbelowshallbereportedbytelephone within24hoursafterpermittee becomesawareofthecircumstances andfollowedupwithinformation inwritingassetforthinCondition 3b.within5days,unlessthisrequirement isotherwise waivedbythePermitIssuingAuthority: (1)Noncomplying discharges subjecttoanyapplicable toxicpollutant effluentstandardunderSection307(a)oftheAct;(2)Discharges whichcouldconstitute athreattohumanhealth,welfareortheenvironment. These-includeunusualorextra-ordinarydischarges suchasthosewhichcouldresultfrombypasses, treatment failureorobjectionable substances passingthroughthetreatment plant.TheseincludeSection311pollutants orpollutants whichcouldcauseathreattopublicdrinkingwatersupplies. d.Nothinginthispermitshallbeconstr'ued torelievethepermittee fromcivilorcriminalpenalties fornoncompliance. 4.Facilities Operation Allwastecollection andtreatment facilities shallbeoperatedinamannerconsistent withthefollowing:. a.Thefacilities shallatalltimesbemaintained inagoodworkingorderandoperatedasefficiently aspossible. Thisincludesbutisnotlimitedtoeffective performance basedondesignfacilityremovals, adequatefunding,effective management, adequateoperatorstaffingandtraining, andadequatelaboratory andprocesscontrols(including appropriate qualityassurance procedures); andb.Anymaintenance offacilities, whichmightnecessitate unavoidable interruption ofoperation anddegradation ofeffluentquality,shallbescheduled duringnoncritical waterqualityperiodsandcarriedoutinamannerapprovedbythePermitIssuingAuthority. c.Thepermittee, inordertomaintaincompliance withthispermitshallcontrolproduction andalldischarges uponreduction, loss,'rfailureofthetreatment facilityuntilthefacilityisrestoredoranalternative methodoftreatment isprovided. 5.AdverseImpactThepermittee shalltakeallreasonable stepstominimizeanyadverseimpacttowatersoftheUnitedStatesresulting from PartIIPageII"34noncompliance withanyeffluentlimitations specified inthispermit,including suchaccelerated oradditional monitoring asnecessary todetermine thenatureofthenoncomplying discharge. 6.Bypassing "Bypassing" meanstheintentional diversion ofuntreated orpartially treatedwastestowatersoftheUnitedStatesfromanyportionofatreatment facility. Bypassing ofwastewaters isprohibited unlessallofthefollowing conditions aremet:a.Thebypassisunavoidable-i.e. requiredtopreventlossoflife,personalinjuryorseverepropertydamage;b.Therearenofeasiblealternatives suchasuseofauxiliary treatment facilities, retention ofuntreated wastes,ormaintenance duringnormalperiodsofequipment downtime;c.Thepermittee reports(viatelephone) tothePermitIssuingAuthority anyunanticipated bypasswithin24hoursafterbecomingaw'areofitandfollows'up wi:thwrittennoti'fication .in5days.Wherethenecessity ofabypassisknown(orshoul'dbeknown)inadvance,priornotification shallbesubmitted tothePermitIssuingAuthority forapprovalatleast10daysbeforehand, ifpossible. Allwrittennotifications shallcontaininformation asrequiredinPartII(A)(3)(b); andd.Thebypassisallowedunderconditions determined tobenecessary bythePermitIssuingAuthority tominimizeanyadverseeffects.Thepublicshallbenotifiedandgivenanopportunity tocommentonbypassincidents ofsignificant durationtotheextentfeasible. Thisrequirement iswaivedwhereinfiltration/inflow analysesarescheduled tobeperformed aspartofanEnvironmental Protection Agencyfacilities planningproject.7.RemovedSubstances Solids,sludges,filterbackwash, orotherpollutants removedinthecourseoftreatment orcontrolofwastewaters shallbedisposedofinamannersuchastopreventanypollutant fromsuchmaterials fromenteringwatersoftheUnitedStates. PartIIPageII-48.PowerFailuresThepermittee isresponsible formaintaining adequatesafeguards topreventthedischarge ofuntreated orinadequately treatedwastesduringelectrical powerfailureseitherbymeansofalternate powersources,standbygenerators orretention ofinadequately treatedeffluent. Shouldthetreatment worksnotincludetheabovecapabilities attimeofpermitissuance, thepermittee mustfurnishwithinsixmonthstothePermitIssuingAuthority, forapproval, animplementation schedulefortheirinstallation, ordocumentation demonstrating thatsuchmeasuresarenotnecessary topreventdischarge ofuntreated orinadequately treatedwastes.Suchdocumentation shallincludefrequency anddurationofpowerfailuresandanestimateofretention capacityofuntreated effluent. 9.OnshoreorOffshoreConstruction Thispermitdoesnotauthorize orapprovetheconstruction ofanyonshoreoroffshorephysicalstructures orfacilities ortheundertaking ofanyworkinanywatersoftheUnitedStates.BERESPONSIBILITIES 1..RightofEntryThepermittee shallallowthePermitIssuingAuthority and/orauthorized representatives (uponpresentation ofcredentials andsuchotherdocuments asmayberequiredbylaw)to:a.Enteruponthepermittee's premiseswhereaneffluentsourceislocatedorinwhichanyrecordsarerequiredtobekeptunderthetermsandconditions ofthispermit;b.Haveaccesstoandcopyatreasonable timesanyrecordsrequiredtobekeptunderthetermsandconditions ofthispermit;c.Inspectatreasonable timesanymonitoring equipment ormonitoring methodrequiredinthispermit;d.Inspectatreasonable timesanycollection, treatment, pollution management ordischarge facilities requiredunderthepermit;ore.Sampleatreasonable timesanydischarge ofpollutants. PartIIPageII-52.TransferofOwnership orControlApermitmaybetransferred toanotherpartyunderthefollowing conditions: a.Thepermittee notifiesthePermitIssuingAuthority oftheproposedtransfer; b.Awrittenagreement issubmitted tothePermitIssuingAuthority containing thespecifictransferdateandacknowledgement thattheexistingpermittee isresponsible forviolations uptothatdateandthenewpermittee liablethereafter. Transfers arenoteffective if,within30daysofreceiptofproposal, thePermitIssuingAuthority disagrees andnotifiesthecurrentpermitttee andthenewpermittee oftheintenttomodify,revokeandreissue,orterminate thepermitandtorequirethatanewapplication befiled.3.Availability ofReportsExceptfordatadetermined tobeconfidential underSection308oftheAct,(33U.S.C.1318)allreportspreparedinaccordance withthetermsofthispermitshallbeavailable forpublicinspection attheofficesoftheStatewaterpollution controlagencyandthePermitIssuingAuthority. Asrequiredby.theAct,effluentdatashallnotbeconsidered confidential. Knowingly makinganyfalsestatement onanysuchreportmayresultintheimposition ofcriminalpenalties asprovidedforinSection309oftheAct(33U.S.C.1319).4.PermitModification Afternoticeandopportunity forahearing,thispermitmaybemodified, terminated orrevokedforcause(asdescribed in40CFR122.15etseq)including, butnotlimitedto,thefollowing: a.Violation ofanytermsorconditions ofthispermit;b.Obtaining thispermitbymisrepresentation orfailuretodisclosefullyallrelevantfactsc.Achangeinanycondition thatrequires eithertemporary interruption ore1.imination ofthepermitted discharge; ord.Information newlyacquiredbytheAgencyindicating thedischarge posesathreattohumanhealthorwelfare. PartIIPageII-6Ifthepermittee believesthatanypastorplannedactivitywouldbecauseformodification orrevocation andreissuance under40CFR122.15etseq,thepermittee mustreportsuchinformation tothePermitIssuingAuthority. Thesubmission ofanewapplication mayberequiredofthepermittee. 5~ToxicPollutants a~Notwithstanding PartII(B)(4)above,ifaxiceffluentstandardorprohibition (including anyscheduleofcompliance specified insucheffluentstandardorprohibition) isestablished underSection307(a)oftheActforatoxicpollutant whichispresentinthedischarge authorized hereinandsuchstandardorprohibition ismorestringent thananylimitation fo"suchpollutant inthispermit,thispermitshallberevokedandreissuedormodifiedinaccordance withthetoxiceffluentstandardorprohibition andthepermittee sonotified. b.Aneffluentstandardestablished forapollutant whic?isinjurious tohumanhealthiseffective andenforceable bythetimesetforthinthepromulgated

standard, eventhoughthispermithasnotasyetbeenmodifiedasoutlinedin.Condition

.5a.6.CivilandCriminalLiability Exceptasprovidedinpermitconditions onBypassing", PartII(A)(6),nothinginthispermitshallbeconstrued torelievethepermittee fromcivilorcriminalpenalties fornoncompliance. 7.OilandHazardous Substance Liability Nothinginthispermitshallbeconstrued toprecludetheinstitution ofanylegalactionorrelievethepermittee fromanyresponsibilities, liabilities, orpenalties towhichthepermittee isormaybesubjectunderSection311oftheAct(33u.S.C.1321).8.Statel.awsNothinginthispermitshallbeconstrued toprecludetheinstitution ofanylegalactionorrelievethepermittee fromanyresponsibilities, liabilities, orpenalties established pursuanttoanyapplicable Statelaworregulation underauthority preserved bySection510oftheAct. PartIIPageII-79.PropertyRightsTheissuanceofthispermitdoesnotconveyanypropertyrightsineitherrealorpersonalproperty, oranyexclusive privileges, nordoesitauthorize anyinjurytoprivatepropertyoranyinvasionofpersonalrights,noranyinfringement ofFederal,State,orlocallawsorregulations 10..Severability Theprovisions ofthispermitareseverable, andifanyprovision ofthispermit,ortheapplication ofanyprovision ofthispermit-toanycircumstance, isheldinvalid,theapplication ofsuchprovision toothercircumstances, andtheremainder ofthispermitshallnotbeaffectedthereby.ll.PermitContinuation Anewapplication shallbesubmitted atleast180daysbeforetheexpiration dateofthispermit.WhereEPAisthePermitIssuingAuthority, thetermsandconditions ofthispermitareautomatically continued inaccordance with40CFR122;5,providedthatthepermittee hassubmitted atimelyandsufficient application forarenewalpermitandthePermitIssuingAuthority isunablethroughnofaultofthepermittee toissueanewpermitbeforetheexpiration date.C.MONITORING ANDREPORTING Representative SamplingSamplesandmeasurements takenasrequiredhereinshallberepresentative ofthevolumeandnatureofthemonitored discharge. 2.Reporting Monitoring resultsobtainedduringeachcalendarmonthshallbesummarized foreachmonthandreportedonaDischarge Monitoring ReportForm(EPANo.3320-1).Formsshallbesubmitted attheendofeachcalendarquarterandshallbepostmarked nolaterthanthe28thdayofthemonthfollowing theendofthequarter.Thefirstreportisduebythe28thdayofthemonthfollow'ing thefirstfullquarteraftertheeffective dateofthispermit. PartIIPageII-8Signedcopiesofthese,andallotherreportsrequiredherein,shallbesubmitted tothePermitIssuingAuthority atthefollowing address(es): lfaterPermitsBranchEnvironmental Protection AgencyRegionIV345Courtland Street,N.E.Atlanta,Georgia303653.TestProcedures Testprocedures fortheanalysisofpollutants shallconformtoallregulations published pursuanttoSection304(h)oftheClean'Water Act,asamended(40CFR136,"Guidelines Establishing TestProcedures fortheAnalysisofPollutants" ).4.Recording ofResultsFor,eachmeasurement orsampletakenpursuanttotherequirements ofthispermit,thepermittee shallrecordthefollowing information: a.Theexactplace,date,andtimeofsampling; b.Theperson(s) whoobtainedthesamplesormeasurements; c.Thedatestheanalyseswereperformed; d.Theperson(s) whoperformed theanalyses; e.The'nalytical techniques ormethodsused;andf.Theresultsofallrequiredanalyses. 5.Additional Monitoring byPermittee Ifthepermittee monitorsanypollutant atthelocation(s) designated hereinmorefrequently thanrequiredbythispermit,usingapprovedanalytical methodsasspecified above,theresultsofsuchmonitoring shallbeincludedinthecalculation andreporting of,thevaluesrequiredintheDischarge Monitoring ReportForm(EPANo.3320-1).Suchincreased frequency shallalsobeindicated. PartIIPageII-96.RecordsRetention Thepermittee shallmaintainrecordsofallmonitoring including: samplingdatesandtimes,samplingmethodsused,personsobtaining samplesormeasurements, analysesdatesandtimes,personsperforming

analyses, andresultsofanalysesandmeasurements.

Recordsshallbemaintained forthreeyearsorlongerifthereisunresolved litigation orifrequested bythePermitIssuin'gAuthority. D.DEFINITIONS 1.PermitIssuingAuthority TheRegionalAdministrator ofEPARegionIVordesignee. 2.Act"Act"meanstheCleanWaterAct(formerly referredtoastheFederalWaterPollution ControlAct)PublicLaw92-500,asamendedbyPublicLaw95-217andPublicLaw95-576,33U.S.C.1251etseq.3~Mass/DayMeasurements a.The"averagemonthlydischarge" isdefinedasthetotalmassofalldailydischarges sampledand/ormeasuredduringacalendarmonthonwhichdailydischarges aresampledandmeasured, dividedbythenumberofdailydischarges sampledand/ormeasuredduringsuchmonth.Itis,therefore, anarithmetic meanfoundbyaddingthe~eightsofthepollutant foundeachdayofthemonthandthendividingthissumbythenumber-of daysthetestswerereported. Thislimitation isidentified as"DailyAvera'ge" or"MonthlyAverage"inPartIofthepermitandtheaveragemonthlydischarge valueisreportedinthe"Average" columnunder"Quantity" ontheDischarge Monitoring Report(DMR)~b.The"average~eeklydischarge" isdefinedasthetotalmassofalldailydischarges sampledand/ormeasuredduringacalendarweekonwhichdailydischarges aresampledand/ormeasureddividedbythenumberofdailydischarges sampledand/ormeasuredduringsuchweek.Itis,therefore,'n arithmetic meanfoundbyaddingtheweightsofpollutants foundeachdayoftheweek"andthendividingthissumbythenumberofdaysthetestswerereported. Thislimitation isidentified as"WeeklyAverage"inPartIofthepermitandtheaverageweeklydischarge valueisreportedinthe"Maximum" columnunder"Quantity" ontheDMR.c.The"maximumdailydischarge" isthetotalmass(weight)ofapollutant discharged duringacalendarday.Ifonlyonesampleistakenduringanycalendarday.theweightofpollutant PartIIPageII-l0calculated fromitisthe"maximumdailydischarge". Thislimitation isidentified as"DailyMaximum," inPartIofthepermitandthehighestsuchvaluerecordedduringthereporting periodisreportedinthe"Maximum" columnunder"Quantity" ontheDMR.4,Concentration Measurements a.The"averagemonthlyconcentration," otherthanforfecalcoliformbacteria, istheconcentration ofalldailydischarges sampledand/ormeasuredduringacalendarmonthonwhichdailydischarges aresampledandmeasureddividedbythenumberofdailydischarges sampledand/ormeasuredduringsuchmonth(arithmetic meanofthedailyconcentration values).Thedailyconcentration valueisequaltotheconcentration ofacomposite sampleorinthecaseofgrabssamplesisthearithmetic mean(weighted byflowvalue)ofallthesamplescollected duringthatcalendarday.Theaveragemonthlycountforfecalcoliformbacteriaisthegeometricmeanofthecountsforsamplescollected duringacalendarmonth.Thislimitation isidentified as"MonthlyAverage"or"DailyAverage"under"OtherLimits"inPartI,ofthe.permitandtheaveragemonthlyconcentration valueisreportedunder'the"Ave'rage" columnunder"Quality" ontheD".fR.:b,The"averageweeklyconcentration," otherthanforfecalcoliformbacteria, istheconcentration ofalldailydischarges sampledand/ormeasuredduringacalendarweekonwhichdailydischarges aresampledandmeasureddividedbythenumberofdailydischarges sampledand/ormeasuredduringsuchweek(arithmetic meanofthedailyconcentration values).Thedailyconcentration valueisequaltotheconcentration ofacomposite sampleorinthecaseofgrabsamplesisthearithmetic mean(weighted byflowvalue)ofallsamplescollected duringthatcalendarday.Theaverageweeklycountforfecalcoliformbacteriaisthegeometric meanofthecountsforsamplescollected duringacalendarweek.Thislimitation isidentified as"WeeklyAverage"under"OtherLimits"inPartIofthepermitandtheaverageweeklyconcentration valueisreportedunderthe"Maximum" columnunder"Quality" ontheDMR.c,The"maximumdailyconcentration" istheconcentration ofapollutant discharged duringacalendarday.Itisidentified as"DailyMaximum"under"OtherLimits"inPartIofthepermitandthehighestsuchvaluerecordedduringthereporting periodisreportedunderthe"Maximum" columnunder"Quality" ontheDMR. PartIIPageII-ll5.OtherMeasurements a.Theeffluentflowexpressed asM3/day(MGD)isthe24houraverageflowaveragedmonthly.Itisthearithmetic meanofthetotaldailyflowsrecordedduringthecalendarmonth.Wheremonitoring requirements forflowarespecified inPartIofthepermittheflowratevaluesarereportedinthe"Average" columnunder"Quantity" ontheDMR.b.Wheremonitoring requirements forpH,dissolved oxygenorfecalcoliformarespecified inPartIofthepermitthevaluesaregenerally reportedinthe"QualityorConcentration" columnontheDMR.6.TypesofSamplesa.Composite Sample-A"composite sample"isanyofthefollowing'. (l)Notlessthanfourinfluentoreffluentportionscollected atregularintervals overaperiodof8hoursandcomposited inproportion toflow.(2)Notlessthan,.four equalvolumeinfluentoreffluentportionscollected overaperiodof8hours'tintervals proportional totheflow.(3)Aninfluentoreffluentportioncollected continuously overaperiodof24hoursatarateproportional totheflow.b.GrabSample:A"grabsample"isasingleinfluentoreffluentportionwhichisnotacomposite sample.Thesample{s) shallbecollected attheperiod(s) mostrepresentative ofthetotaldischarge. 7.Calculation ofMeansa.Arithmetic Mean:Thearithmetic meanofanysetofvaluesisthesummation oftheindividual valuesdividedbythenumberofindividual values'.Geometric Mean:Thegeometric meanofanysetofvaluesistheNthrootoftheproductoftheindividual valueswhereNisequaltothenumberof'ndividual values.Thegeometric meanisequivalent totheantilogofthearithmetic meanofthelogarithms oftheindividual values.Forpurposesofcalculating thegeometric mean,valuesofzero(0)shallbeconsidered tobeone(1). PartIIPageII-12c.WeightedbyFlowValue:Weightedbyflowvaluemeansthesummation ofeachconcentration timesitsrespective flowdividedbythesummation oftherespective flows.8.CalendarDaya.Acalendardayisdefinedastheperiodfrommidnightofonedayuntilmidnightofthenextday.However,forpurposesofthispermit,anyconsecutive 24-hourperiodthatreasonably represents thecalendardaymaybeusedforsampling. PartIIIPageIII-1PermitNo.FL0002208 PARTIIIOTHERREQUIREMENTS A.Thereshallbenodischarge ofpolychlorinated biphenyls com-poundssuchasthosecommonlyusedfortransformer fluid.B.ThecompanyshallnotifytheDirector, platerManagement Divisioninwritingnotlaterthansixty(60)dayspriortoinstituting useofanyadditional biocideorchemicalusedincoolingsystems,otherthanchlorine, whichmaybetoxictoaquaticlifeotherthanthosepreviously reportedtotheEnvironmental Protection Agency.Suchnotification shallinclude:1.nameandgeneralcomposition ofbiocideorchemical, 2.quantities tobeused,3.frequencies ofuse,4.proposeddischarge concentrations, and5.EPAregistration number,ifapplicable. C.Plantstormwater whichisuncontaminated byplantwastesmaybedischarged withoutlimitation ormonitoring requirements. D.Intakescreenbackwashmaybedischarged withoutlimitation ormonitoring requirements. E.Allenvironmental monitoring reportssubmitted totheU.S.NuclearRegulatory Commission shallbesubmitted toEPA.F~G.Permittee shallcontinuetheapprovednon-radiological aquaticmonitoring program(revisedcontinuation ofexistingprogram)whichserveasSt.Lucie1operational andSt.Lucie2pre-oper-ationalandoperational. TheprogramwillcontinueforatleasttwoyearsafterUnit2beginscommercial operation. Afterthisperiodtheprogramwillbeevaluated bythePermittee andEPAtoassessthecontinued needorpossibledeletionand/ormodifi-cationoftheprogram.Reportsshallbesubmitted annuallynotlaterthanApril30oftheyearfollowing thereporting period.Subsequent tothecommercial operation dateofUnit2,heatedwatershallbedischarged fromtheUnit2multiport discharge linewhenonlyoneunit'isoperating. Periodsofshort-term, one-unitoperation shallnotbesubjecttothisrequirement. NotlaterthanDecember31,1981,aproposedoperational scheme,including adefinition of"short-term", hallbesub-mittedforapprovalbytheDirector, HaterManagement DivisionandStateDirectortoassureconformance withtheserequire-ments.

PartIIIPageIII-2PermitNo.FL0002208 H.Ifanapplicable standardorlimitation ispromulgated undersections301(b)(2)(C) and(D),304(b)(2), and307(a)(2) andthateffluentstandardorlimitation ismorestringent thananyeffluentlimi.tation inthispermitorcontrolsapollutant notlimi,tedinthispermit,thispermitshallbepromptlymodi-fiedorrevokedandreissuedtoconformtothateffluentstandardorlimitation. I.Permittee shallimplement amonitoring programtoassurecom-pliancewithtemperature limitations providedhereinandwiththermalrequirements oftheFloridaWaterQualityStandards. Suchprogramtoincludefieldsurveys,infraredthermalimagryoverflights and/orothermonitoring toassurecompliance. Astudyplanshallbesubmitted forapprovalnotlaterthanthreemonthspriortofuelloadingofUnit2andshallbeexpedi-tiouslyimplemented onapproval. Areportshallbesubmitted notlessthan15monthsafterimplementation. J.Permittee shallconductachlorineminimization programfortheauxiliary coolingwatersystemiftheTROconcentration levelsattheterminusofthedischarge canalduringcontin-uouschlorination oftheauxiliary system(s) equalorexceed0.02mg/L.Suchstudyifrequired, shallbeconducted gen-erallyinconformance withtechniques andconceptspublished inAppendixA,~68354,October141980>totheextentim-plementable ontheauxiliary coolingsystemattheSt.LuciePlant.Implementation oftheplan,ifrequired, shallbenolaterthan30daysafterthePermittee becomesawarethattheconcentration levelofTROequalsorexceeds0.02mg/L.Briefstatusreportsshallbesubmitted quarterly withthefirstreportdueattheendofthethirdfullmonthfollowing im-plementation ofthestudy.Afinalreportshallbesubmitted notlessthantheendofthefifteenth fullmonthoftheim-plementation, PartIIIPageIII-3PermitNo.FL0002208 Copiesofreportssubmitted inaccordance withPartIII.F.shallbeforwarded bythepermittee asfollows:NumberofCoiesAddressee 212ChieX,WaterPermitsBranch,EPA(Atlanta) Chicf,EcologyBranch,EPA(Athens) FloridaDept.ofEnvironmental Regulation (Tallahassee) Assistant DirectorforEnvironmental Technology USNRC(Washington) RegionalDirector, FishandWildlifeService(Atlanta) RegionalDirector, NationalMarineFisheries Service(St.Petersburg) Additionally, twocopiesofallplansandreportssubmitted inaccordance withPartsIII.G,IandJshallbesubmitted toFLDER(Tallahassee) andUSEPA(Atlanta) andonecopytoEPA(Athens). L.TheStateofFloridaDepartment ofEnvironmental Regulation hascertified thedischarge(s) coveredbythispermitwithconditions (Attachment B).Section401oftheActrequiresthatconditions ofcertification shallbecomeacondition ofthepermit.Themonitoring andsamplingshallbeasindicated forthoseparameters includedinthecertification. Anyeffluentlimits,andanyadditional requirements, spec-ifiedintheattachedstatecertification whicharemorestringent supersede anylessstringent effluentlimitspro-videdherein.Duringanytimeperiodwhichthemorestrin-gentstatecertification effluentlimitsarestayedorin-operable, theeffluentlimitsprovidedhereinshallbeineffectandfullyenforceable. ST.LUCIEPLANTWASTEWATER FLOWDIAGRAMATTACHMENT ANPDESNo.FL0002208 UNITIlSTP006UNITI2DEWATERING WASTES005INTAKECANALNEUTRALIZATION BASIN002FLOORDRAINSCONSTRUCTION AREARUNOFFEVAPORATION/ PERCOLATION PONDSUNITClUNITI2UNITI2STPMETALCLEANINGWASTES003.RADWASTEDISCHARGE IT2004004DISCHARGE CANALSTEAMGENERATOR CLEAN-UPSYSTEMBLOWDOWN007UNITg2MULTIPORT DIFFUSER008UNIT01PIPEYDIFFUSEATLANTICOCEAN ATTACHMENT BNPDESNo.FL0002208 STATEOFFLORIDADEPARTMENT OFENVIRONMENTAL REGULATION TWINTOWERSOFFICEBUILDING2600BLAIRSTONEROADTALLAHASSEE, FLORIDA32301BOBGRAHAMGOVERNORVICTORIAJ.TSCHINKEL SECRETARY I~EOffWJanuary27,1982%AVERm'0R~TBRANCHIRZIKlllP JAR29t982PaulJ.TrainaDirector, WaterDivisionU.S.Environmental Protection Agency345Courtland Street,N.E.Atlanta,Georgia30365EPA-REGION IVATLANTA,GA.

DearMr.Traina:

PursuanttoSection401oftheFederalWaterPollution ControlAct,PublicLaw92-500,asamended,theStateofFloridaherebyissuescertification to:FloridaPower&LightCompanySt.LucieNuclearPowerPlantUnits1and2St.LucieCountyFL0002208 anapplicant foraNationalPollutant Discharge Elimination Systempermit.Statecertification forUnit1isissuedsubjecttothefollowing conditions: A.Theapplicant meetsalleffluentlimitations, monitoring andotherrequirements developed forthereviseddraftNPDESpermitdatedOctober15,1981.B.Theapplicant complieswithallapplicable requirements ofChapter403,FloridaStatutes, andChapter17series,FloridaAdministrative Code.1.Theconcentration ofpollutants discharged fromthisfacilitymustmeetStatewaterqualitystandards atthepointofdischarge inaccordance withChapter17-3,F.A.C.,unlessamixingzonehasbeenobtainedinaccordance withChapter17-4,F.A.C.Ifamixingzonehasbeenapproved, Statewaterqualitystandards wouldapplyattheedgeofthemixingzone.CertainminimumcriteriastillapplytothosewaterslocatedwithinmixingzonesapprovedbytheDepartment (seeSection17<<3.051, F.A.C.).Themixingzoneisdefinedaccording toChapter17-4.244, FloridaAdministrative Code.Protecting FloridaandYourQualityofLife PaulJ.TrainaPagetwo2.Inaccordance withChapter17-3.061(2)(j), FloridaAdminis-trativeCode,thefollowing surfacewaterstandards shallbemetinthereceiving bodyofwaterexceptwithinzonesofmixing:a.Dissolved oremulsified oilsandgreasesshallnotexceed5.0mg/1.b.Noundissolved oilorvisibleoildefinedasiridescence, shallbepresenttocausetasteorodor,orotherwise interfere withthebeneficial usesofwaters.Statecertification forUnit2isissuedsubjecttothefollowing conditions: A.Theapplicant meetsalleffluentlimitations, monitoring andotherrequirements developed forthereviseddraftNPDESpermitdatedOctober15,1981.B.Theapplicant complieswiththetermsandrequirements oftheconditions ofcertification inCaseNo.PA-74-02asrevisedon3/12/80andmodifiedon12/7/81(seeAttachment I)pursuanttoapplicable requirements ofChapter403,FloridaStatutes, andChapter17series,FloridaAdministrative Code.Iftheaboverequirements aremet,thedischarge fromthisfacilitywillcomplywithSections301,302,and303oftheFederalWaterPollution ControlAct,asamended.InsofarastheDepartment candetermine, therearenofurtherlimi-tationsunderSections306and307oftheActapplicable tothisdischarger. TheDepartment maymodifytheeffluentlimitations andotherconditions placedonthisfacilitypursuanttoFederalandStatelaw,shouldfurtherwaterqualityanalysisofthedischarge, itsvolumeandcharacter, togetherwiththeflowandcharacteristics ofthereceiving bodyofwater,indicatethatthedischarge willnotmeetandcomplywithapplicable waterqualitystandards contained inChapter17-3,FloridaAdministrative Code.Thecorrectaddressforsubmission ofFlorida's copyoftheDischarge Monitoring Reportsis: PaulJ.TrainaPagethreeFloridaDepartment ofEnvironmental Regulation SouthFloridaSubdistrict BranchOffice2745Southeast Morningside Blvd.PortSt.Lucie,FL33452Sincerely, SuneP.WalkerCh,BureauofPermitting SPW:hppcc:Districtw/attachment Applicant w/attachment PERMITRATIONALE ST.LUCIENUCLEARPOWERPLANTUNITS1and2FLORIDAPOWERAtlDLIGHTCOMPANYJANUARY7,1982I.Applicable Regulations A.Theproposedconditions provideforcompliance with(1)EffluentGuidelines andStandards forthesteamelectricpowergenerating pointsourcecategory(40CFR423)asromulatedonOctober8,1974(39FederalReister86,andwithroosedguide-snesrevsssons published onOctober,980(45FR68328),forplantchemicalwastes;and(2)atentative determination underSection316(b)oftheCleanWaterActfortheplantcoolingwaterintake;aswellas,B.Provisions oftheFloridaWatergualityStandards (Chapters 17-3and17-4FloridaAdministrative Code).Thereceiving watershavebeenclassified bytheStateofFloridaasClassIII-Recreation -Pro-pagationandManagement ofFishandWildlife-Sur-facewaters.II.EffluentLimitations A.Outthrcoo2.fallSerialNumbers(OSN)001and008-Onceoughcondenser coolingwaterandauxiliary lingwater:Temperature: Discharge temperature of45C(113F)attheterminusofthedischarge canal,exceptunderspecificabnormaloperatinq conditions whenlimitation is47.2C(117F)andtemperature 00riseof16.7C(30F)and17.8C(32F),respec-tively.Limitations areasrequested bytheapplicant andaresupported bybiological sam-plingdata.Totalresidualoxidants(includes totalresidualchlorine): a.Aninstantaneous maximumlimitation of0.1mg/1duetocondenser chlorination foramaximumperiodoftwohoursperdayperunit.Limi-tationisbasedonWatergualityStandards requirements whicharemorestringent thaneffluentguidelines. FloridaStandards (17-4.244(4)) precludeamaximumpollutant concentration withinamixingzonewhichexceedstheamountlethalto50percentofthetestorganisms in96hours(96-hrLC50)foraspeciessignificant totheindigenous aquaticcommunity. The96-hrLC50valueforBlueCrabsof0.10mg/1hasbeenusedtoestablish theeffluentlimit. b.Aninstantaneous maximumlimitations of0.03mg/1duetocontinuous chlorination ofauxiliary coolingsystemsattimesotherthanduringmaincondenser chlorination hasbeenincluded, asabestprofessional judgement. Aminization studyisrequiredifTROlevels.fromthissourceexceed0.02mg/1attheterminueofthedischarge canal.c.Requirements oftheOctober8,1974,promul-~atedandOctober14,1980,roosedregula-tionsandareopenerprovision avebeenincludedalso.OSN002-Lowvolumewastes:Limitations areas21dby~)dd~d'123.12()(3).guantitylimstations arecomputedusingawasteflowof0.72MGD,basedonhistorical recordsfromUnit1.OSN003-Metalcleaningwastes:Limitations are2dy~)d123.12(b)id) d3osed423.13(g), exceptthatabestprofessional gugementlimitation forphosphorus of1.0mg/1hasbeenincluded. OSN004-Radwaste: Limitations areasrequired3'123.12(b)[3) 2volumewastesusingafowof0.07MGD,basedonhistorical recordsforUnit1.NOTE:Theradio-activecomponent ofthisdischarge isregulated bytheU.S.Nuc1earRegulatoryCommissionandisnotsubjecttoNPDESpermitting requirements. Commentsrelativetotheradioactive component ofthisdischarge shouldbedirectedtoNRCandmaynotbeconsidered byEPAinitspermitting decisions. OSN005-Dewatering WastesfromUnit2Con-struction: Concentration limitations ontotalsuspended solidsareincludedbasedonbestpro-fessional judgement andhistorical records.Duetothehighlyvariablenatureofthiswasteflow,quantitylimitations arenotprovided. OSN006-Sewagetreatment plantdischarge: Limitations aregenerally basedonsecondary treatment requirements (40CFR102)fordo-mesticwaste.However,theone-daymaximum,limitations of60mg/1eachfortotalsus-pendedsolidsandbiochemical oxygendemand(BOD)proposedisextrapolated fromtheseven-dayaveragelimitation of45mg/1presented intheregulations. Thisextrapolation wasmadetoconformwiththeproposedmonitoring frequency.

G.OSN007-Steamcleanupsystemblowdown: Limi-d~1d4{{{{423.12{{{{guantitylimitations arenotincludedduetotheinfrequent nature(normally recycled) andvari-ableflowofthewastestream.H.guantityLimitations: guantity1imitationsarecalculated asfollows:guantity(lbs/day)=8.345 xFlow(NGD)xAllowedConcentration (mg/1)where:8.345istheappropriate conversion factor,flowsarebasedonhistorical datafromUnitIandinformation providedbytheapplicant, andcon-centrations (mg/1)areasprovidedinapplicable subsections of40CFR423.I.ProposedPermitPeriod:Fiveyears.TheNPDESpermitrequirescompliance withthemoststringent requirements ofeitherthe~ro-mulated(October8,1974)orroosed(Octo-er4,1980)regulations (40CFR23.12,etc.).Dataonprioritypollutants hasbeensubmitted fromUnitI.Samplescannotbecollected fromUnit2wastesourcessincetheUnitisnotyetinoperation. Evaluation ofdatasubmitted bytheapplicant forUnitIandexpectedeffluent. qualityfromUnit2,haveledthepermitwritertothetentative conclusion thatadditional treatment forprioritypollutants isnotlikelyforanypollutants andthatafullfive-year permitshouldbeissued.However,toassurethatthisjudgement iscorrect,areopenerclauseisincludedinthepermit(PartIII.H.)intheeventthatmorestringent requirements areultimately promulgated byEPA. January29,1982ST.LUCIENUCLEARPLANTBESTTECHNOLOGY AVAILABLE (BTA)FINDINGFORCIRCULATING WATERSYSTEMMODIFICATIONS ABTAfindingoffactfortheexistingintakesystemwascon-ductedbyEPAin1981.Sincethatfinding,FloridaPowerandLightCompany(FPSL)submitted anapplication proposing athirdcoolingwaterpipelinetocorrectforpredicted headlosses andreductions incanalwaterlevelwhenunit2becomesoperational'nformation foundinEPA'sfindingoffact(1981)anddocuments submitted onDecember3,1981byFPSLarethesubstance ofthefollowing findingsfortheproposedintakestructure. FINDINGSoAnoceanpipelineandchannelextension toconveycoolingwaterfromtheAt,lantic Oceanintotheexistingintakecanalisproposed. The1515ftlongpipelineis16ftinsidediameter, extends1195ftoffshore, anditisburiedbeneaththedunesandoceanbottom.Thepipewillterminate intoavelocitycapadjacenttotheexistingcaps.Thevelocitycapstructure willbesimilarinsizeanddesigntotheexistingstructures (EPA,1981).oThenewpipelinewillhaveamaximumdesignflowvelocityofapproximately 6.8fps,3.2fpslessthanthevelocityofthetwoexistingpipelines. oThelocationofthevelocitycapsareinahighenergy/low impactareaascharacterized inEPA's(1981)priorfindingoffact.oPermanent lossesinclude1/2acreofmangroveswamppre-emptedforanaccessroadandcanalwidening. Removaloflessthan1/2anacreoftheswamprepresents about1%ofthemangrovebetweentheintakeanddischarge canals.oTemporary impactsbecauseofconstruction activities include14.7acresofdisturbed benthos,disruption oflittoralflowofsand,decreases inturtlenesting,andexcavation ofastripofdunevegetation andsandlessthan100ftwide~ oSpecificprovision designedtominimizeimpactcausedbyconstruction include:ooconstruction ofatemporary beachdunewhencut-tingthroughthenaturaldunes,oouseofsheetpilingand/orsiltscreensaroundexcavation worktolimitturbidity to<50Jacksonunits,oodisposalofsoilsinanapprovedonshoredisposal, ooaturtlenestsurveillance andrelocation programonthoseareasofbeachpotentially affectedbyconstruction

activity, andooduneareacontoursrestoredtopre-construction conditions, andthedisturbed areasreplanted withnativedune-stabilizing species.OPINIONBasedupontheinformation receivedfromFP&Landourexperience 3.nassessing powerplantimpactsoverthepastdecade,itisournofopinionaeethtthdsigncapacity, construction andlocationothth'eanintakestructure oftheSt.LucieNuclearaneirocialcom-reflectsBTAforminimizing adverseimpactstoterrestra.a munitiesandoceanicfishesandinvertebrates.

Bincreased intakecapacityofthispowerplantandecauseoiethepresententrapment rateofendangered seatures,isinouropinion,thatthecompanyshouldassesstechnology aimedatpreventing entrapment ofseaturtlesatthevelocitycapofthisnewstructure. Besttechnology available does'notpreclude, inouropinion,additional improvements uponBTAtoprotecten-dangeredspecies.REFERENCES EPA,1981.St.LucieNuclearPlant316(b)FindingforBestTech-nologyAvailable. RegionlV,Atlanta,Georgia.FP&Ltransmittal ofinformation toMr.Traina,DirectectorofWaterManagement Division. December3,1981. 1August15,1981ST.LUCIENUCLEARPLANT316(b)FindingforBestTechnology Available Section316(b)ofP.L.95-217requiresthatthelocation, design,construction andcapacityofcoolingwaterintakestructures reflectthebesttechnology available (BTA)forminimizing adverseenvironmental impacts.Decisions relatingtoBTAaretobemadeIonacase-by-case basisusingsuchfactorsassizeandtypeofwaterbodyandrelativemagnitude offlowwithdrawn forcooling(40CFR,Pt.402).Throughdeliberations betweenFloridaPowerandLightCompany(FPL)andseveralgovernment

agencies, BTAwasdetermined fortheSt.LucieNuclearPlantintakesystempriortoplantoperation.

FINDINGSThe2-unit1612netNWSt.LucieNuclearPlantislocatedona1130-acre siteofHutchinson Island,Floridaapproximately mid-waybetweenFt.PierceandSt.Lucieinlets.ThenuclearplantisboundonthewestbytheIndianRiverandontheeastbytheAtlanticOcean.Thecondenser coolingwaterisprovidedbyaonce-through Icirculating watersystemwhichconsistsofintakeanddischarge Ipipesintheoceanlinkedbycanalstothenuclearplant.TheoceanintakeforUnits1and2islocated1200ftfromtheAtlanticshoreline inahighenergy/low impactareacharacterized bywaterturbulence andshiftingsandorsand-shell substrate withalackofbottomcoveroroutcroppings. Theunstablesubstrate precludes theestablishment ofmacrophytes orattachedbenthiccommunities. Fromtheoceanintakepoint,waterisdrawnthrough2buriedpipe-lines(I.D.-12.0ft)at10fpstotheintakecanal.This300-ftwidecanalhecfins450ftwestoftheshoreline whereitfunnelsthecoolingwatersome500fttothenuclearplantintakestructures (barsandscreens). Pumpsatthenuclearplantprovideadesignflowof2290cfs(5.62x10~m3/day)forcondenser coolingthroughthenuclearplant.Approachvelocities toeachof8traveling screensarelessthan1.0fps.Traveling screenwashingsaresluicedtoatrashpitwhereorganisms andtrasharecollected fordisposal. Thetopoftheoceanintakes(Figure1)aresituatedapproxi-mately8ftbelowthewatersurfaceatmeanlowwater.Averticalsectiontopreventsandingandbottomorganismmigration andavelocitycaptominimizefishentrapment wereinstalled foreachpipe.Pre'sently, withoneunitoperating, horizontal intakevelocities are0.5fps;withbothunits,velocities willincrease. .ltoapproximately 1.0fps.ThedesignoftheoceanintakeissimilartothatemployedbySouthernCalifornia EdisonCompanyattheirElSegundofossilfuelplant.AtElSegundo,272tonsoffishwereentrapped duringthefirstyearofoperation whennovelocitycapwasusedandtheflowvectorsenteringthein-takewerevertically downward. Afterinstallation ofavelocitycapwithmaximumdesignflowsof3.5fps,only15tonsoffishwereentrapped inthefollowing year(94.5%reduction) (USAEC,1974)~Velocity~capsaredesignedtoprovideflowrateinahori-zontalradialdirection becausefisharefamiliarwithhorizontal velocities, andtheyusuallywilltendtoswimagainstacurrentevenwhentheirnetmovementisdownstream. Verticalvelocities< however,arenotcommonlyfoundinnature,andadetection responsemechanism doesnotseemtoexistfortheminfishes(USAEC,1974)~TheFloridaDepartment ofNaturalResources'iami ResearchLaboratory inconjunction withFPLconducted preoperational base-lineenvironmental studiesofthemarineenvironment

adjacent, totheSt.LucieNuclearPlantfromSeptember 1971toJuly1974-In1975,AppliedBiology,Inc.continued themonitor'ing through1980.Unit1wasplacedon-linein1976.Thenuclearplantwasbaseloadedthroughout 1977,1978,1979and1980.Monitoring information pertaining toentrapment offishesandinvertebrates overtheyearsshowsthat:

IoTheprimarycommercial fishesinSt.LucieandMartinCountiesareSpanishMackerel, KingMackerel, andBlue-fish.Duringthepast5years,only5SpanishMackerel; 10KingMackereland24Bluefishhavebeencollected intheintakecanalbygillnettingdesignedtodetermine accumulations offishesandshellfishes inthecanalsoThegreatestyearlycanalcatchoverthepast5yearswas1501fishin1980.Totalestimated fishbiomasslosttotheAtlanticOceanthatyearwas6818kgorabout0.2%oftheSt.LucieandMartinCountycommercial catches.Atotalof121shellfish weighing42.5kgwasalsocollected duringthesameperiod.oFivespeciesofmarineturtlesarefoundalongHutchinson Island.ThemostcommonistheAtlanticloggerhead turtlefollowedbythegreenturtle,leatherback turtle,hawksbill turtle,andtheAtlanticRidleyturtle.Theleatherback turtleandtheFloridapopulation ofgreenturtlesareclassified asendangered speciesbytheFederalGovernment ECFR41(208):47180-47198; CFR43:32,808j, andallmarineturtlesareprotected byFloridaStatute307.12;1974. oTotalseaturtleentrapment intheSt.Lucieintakecanalovera6-yearperiodamountedto572loggerheads, 51greens,6leatherbacks, 1hawksbill, and1AtlanticRidley~Annualentrapment ofall5specieshasrangedfrom0to173'Ichthyoplankton wasgenerally abundantduringthespringandsummerofeachyear.Themostcommonlarvalfisheswereherringsandanchovies. Eggsandlarvaecollected averagedfrom0.13to5.50/m3ascomparedtothebaselinesamplingof0.23/m3.Theseconcentrations aresubstantially Ilowerthanconcentrations foundinamoreproductive area,theupperIndianRiver,wheremeandensities ofeggsandlarvaewere132.83/m3 (AppliedBiology,Inc.andRayL.LyerlyandAssociates, 1980).o,Average eggandlarvalpopulations intheintakecanal(0'89eggs/m3and0.080larvae/m3) werelowerthanaveragepopulations foundoffshore. oToputtheimpactofentrainment intoperspective, anoffshoreboundarywasdetermined fortheregionfromwhichichthyoplankton ispotentially withdrawn bythenuclear plant.Thedistancebetweenthedesignated offshoreboundaryIandtheshoreline is3500mandtheaveragedepthis9.2mforacalculated cross-sectional areaof32,200mThepercentage lossestimates from1976through1980forfisheggsrangedfrom0.13to0.50andforfishlarvaelossesranged.from0.01%to0.18%.EcologyBranchstaffhasbeenassessing powerplantimpactsoverthepastdecade.Thereisnothinginthemonitoring infor-mationreviewedthat,inouropinion,warrantsadetailed316(b)studynorthecontinued monitoring oftheintakeforfishesandinvertebrates. Thedesign,capacityandlocationoftheoceanin-takestructure oftheSt.LucieNuclearPlantreflects, inouropinion,BTAforminimizing adverseimpactsupontheseorganisms. lnviewofthedeclining worldpopulations ofmarineturtles,theHutchinson islandturtlerookeryisofspecialimportance inmaintaining marineturtlepopulations. Becauseofthenuclearplant'slocationonHutchinson Xslandandtheprotected statusofseaturtles,itisouropinionthatcontinued monitoring ofturtleentrapment isnecessary tofullyevaluateintakelocation, designandcapacity. REFERENCE AppliedBio1ogy,Inc.andRayL.LyerlyandAssociates. 1980.Biological andenvironmental studiesattheFloridaPowerandLightCo.CapeCanaveral PlantandtheOrlandoUtilities Commission IndianRiverPlant.Vol.I.U.S.AtomicEnergyCommission. 1974.FinalEISrelatedtocon-struction ofSt.LuciePlantUnit2,FloridaPowerandLightCompanyDocketNo.50-389. VELOCITYCAPWARNINGSIGNALSTEELROOFDECKINGSHEETPILING.'.c'!i.-'."': '.~p~~leIIIIID-I2'~,MEANLOWWATERELa0.00INTAKEFLOWsl~,J~,l,"~.,~~'~1200'ROMCENTERTOSHORELINE FIGUREl.OCEANINTAKESTRUCTURE seP.O.BOX529I00MIAMI,FL33I52IQGNovember9,1981-~~',tA~.FLORIDAPOWERStLIGHTCOMPANYMr.CharlesKaplanUS-FPARegionIV345Courtland StreetAtlanta,GeorgiaRe:CommentsonSt.LuciePlantNPDESPermitPublicNotice

DearCharlie:

FPLhasreviewedthesubjectdocumentdatedOctober15,1981andsubmitsthefollowing commentsforyourconsideration: 1)FirstpageofPermitRationale, ItemII.A.1.Itissuggested thatlanguagebeaddedtothisitemspecifying thatcompliance withthesethermallimitations willbedemonstrated attheterminusofthedischarge canal.2)SecondpageofPermitRationale, ItemII.A.2.b. Thisitemshouldbeamendedasfollows:......discharge attimesotherthandurinmaincondenser chlorination. 3)PageI-3IncolumnentitledEffluentCharacteristic, changeCondenser ChlorineAdditiontoCondenser Chlorine~Disohare.Lastparagraph, firstsentenceshouldbeamendedtoread....Atlantic Oceanattimeswhenonlthissourceisbeinchlorinated. 4)PageI-4Firstparagraph thirdsentenceshouldbeamendedtoread.....0.1mg/Lattheterminusofthedischarecanal.Secondparagraph, addthefollowing afterthesecondsentence; Thisreuirementaliesonlifaninstrument hasdemonstrated suecessFul oerationasreuiredbthelastaraahaeI-lofthisermit.Sincerely, e.~Mp>(W.J.Barrow,Jr.ManagerofPermitting andProgramsWJBjr:ADB:ku PEOP.SERVINGPEOPLE anuary29,1982ResponsetoCommentsSt.LucieNuclearPowerPlantNPDESPermitNo.FL0002208 A.FloridaPowerandLightCompany,November9,1981.1.Revisionincluded. 2.Revisionincluded. 3a.Revisionnotincludedperdiscussions withNr.FrankM.GavilaoftheFP&Lstaff.AsstatedinFootnote2PageI-2andthemiddleparagraph (beloweffluentlimi-tations)onPageI-3,itistheAgencyintenttolimitonlythedischarge ofTROfromcondenser chlorination totwohoursperdayperunit.However,ithasbeenagreedbetweenEPAandFP&Lstaffthatformonitoring

purposes, itwaseasiertodocumentthetimeofchlorineadditionwhichisapproximately equaltothetimeofdischarge.

AtsomefuturetimeshouldFP&LprefertoanalyzeforTROinthecondenser effluenttodocumentthatTROisbeingdischarged foronlytwohoursperdayperunit.EPAwouldconcur.3b.Revisionincludedbutwithreference toSewageTreatment Plant(PageI-1also).4a.Revisionincluded. 4b.Revisionnotincluded. EPAconcursthatuseofacon-tinuousrecorderwillonlybeapplicable ifdemonstrated successful. Thereferenced paragraph onPageI-1isidentical tothatonPageI-4. P.O.BOX529I00IlI'.;I,FL33152FLORIDAPOWER&LIGHTCO.1September 15,1981Mr.MichaelTaimi,ChiefConsolidated PermitsBranchU.S.E.P.A., RegionIV345Courtland St.,¹E.Atlanta,Georgia30308Re:St.LucieUnitNo.1NPDESNo.FL0002208

DearMr.Taimi:

Thistransmittal constitutes anofficialrequesttoamendFPRL'sSt.LucieUnitNo.1NPDESapplication disclosing FPRLIsintention tocontinuously chlorinate theauxiliary coolingsystemsforUnitNo.1.FPRLhaddetermined thatcontinuous anddirectlowlevelchlorination ofthesesystemsisthemostefficient mannertopreventtheauxiliary heatexchanger fromexperiencing biofouling problems.FPRLmayinstitute continuous chlorination ofthesesystemsasearlyasNovember1981.FPRLestimates therevillbenomeasurable discharge ofchlorinetotheAtlanticOceanasaresultofthisactivitynorwilltherebeanyadverseenvironmental impacttothereceiving bodyofwater.Shouldtherebeaneedofclarification oftheabovedisclosure, pleasehaveyourstaffcontactFrankM.Gavilaattelephone 305-552-3568. Sincerely, RobertE.UhrigYicePresident AdvancedSystemskTechnology REU:FMG:dc cc:BuckOvenStateofFloridaDER ST.LUCIEPLANTAUXILIARY COOLINGWATERSYSTEMCHLORINEMONITORING PROGRAMInitialStartupofAuxiliary CoolingWaterSystemChlorination at24hr./dayschedule. Day1TRCTestLocations HeatExchanger OutletEndofUnit2Discharge CanalTerminusofFacilityDischarge CanalBlankonIntakeWaterRecordChlorinator FlowRateFreauenc2/day2/day1/hour2/day12/dayIfTRCisdetectable attheterminusofthefacilitydischarge canalduringtheinitial1.5hrs.ofchlorination, injection ofchlorineto.theauxiliary systemchlorination willbeterminated forDay1andresumedonDay2atlowerdoserate.Day1procedure willbefolloweduntilsuchtimethatnoTRCisdetectable atterminusofdischarge canalutilizing aperometric titration testmethod.Day2throughDay7TRCTestLocations HeatExchanger OutletEndofUnit2Discharge CanalTerminusofFacilityDischarge CanalBlankonIntakeWaterRecordChlorinator FlowRateDay8through2MonthsTRCTestLocations HeatExchanger OutletEndofUnit2Discharge CanalTerminusofFacilityDischarge CanalBlankonIntakeWaterRecordChlorinator FlowRateFreuenc2/day2/day6/day2/day12/dayFreuenc1/day1/day1/day1/2weeks6/dayEvaluation oftestresultstobemadeconcurrently withtestprogramfromDay1through2months.FP&Lwillreportpriortocompletion ofthetestperiodtoEPAviatelephone results,generalconclusions drawnfromresultsandproposedscheduleofmonitoring beyondthetwomonthtestperiod.

AUXILILARY SYSTEMCHLORINEMINIMIZATION STUDYGUIDELINES Theeffectiveness ofchlorinetreatment ontheauxiliary coolingwaterheatexchangers willbeexaminedusingthefollowing techniques: 1)Visualobservations ofheatexchangers duringmaintenance outagesincluding photographs andmaintenance cleaningrecords.2)Measurement ofpressuredifferentials betweeninletandoutletsidesofheatexchanger. 3)Correlation ofchlorinedoserateswithresultsofvisualobservations andmeasurement ofchlorione concentrations attheterminusofthedischarge canal. Lv}}