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{{#Wiki_filter:}} | {{#Wiki_filter:-- p V.C. | ||
Bradham SummerNuclear Blvd Station | |||
& Hwy 215,Jenkinsville SC 29065 | |||
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Mailing Address: C P.O. Box 88,Jenkinsville, SC 29065 i - | |||
DominionEnergy.com 27,2021 April ATTN: Document Control Desk Serial No.21-161 U.S.Nuclear RegulatoryCommission LIC/TS/RO Washington, D.C.20555-001 Docket No.50-395 License No.NPF-12 VIRGIL C.SUMMER NUCLEAR STATION UNIT1 DOCKET NO.50-395 OPERATING LICENSE NO.NPF-12 ANNUALRADIOLOGICAL ENVIRONMENTAL OPERATING REPORT Enclosed istheDESCAnnual RadiologicalEnvironmental Operating Report asrequired by Section 6.9.1.6 oftheVirgil C.SummerNuclear Station Technical Specifications. | |||
there If areanyquestions, please callMs.Tracey Stewart at (803) 931-5663. | |||
Sincerely, | |||
/ | |||
Robin R.Haselden Director, Nuclear Station Safety andLicensing V.C.Summer Nuclear Station Commitments contained inthis letter:None Enclosure cc: w/oEnclosure unless noted G.J.Lindamood - | |||
Santee Cooper L.Dudes NRCRegion II (w/Enclosure) | |||
V.Thomas NRCProject - | |||
Manager NRCResident Inspector (w/Enclosure) | |||
ANI(w/Enclosure) | |||
AnuNair-Gimmi - | |||
SCDHEC (w/Enclosure) | |||
Dominion Energy* | |||
ANNUAL RADIOLOGICAL ENVIRONMENTALOPERATING REPORT VIRGIL C.SUMMER NUCLEARSTATION FOR THE OPERATING PERIOD JANUARY 1,2020 DECEMBER31,2020 i | |||
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Preparedby: | |||
/ Brett Specialist Williams, Health Physics Reviewed by: A roved by: | |||
Casey Carlson, Supervisor ToddEllison, | |||
!tManager HealthPhysics Radiological andChemistry Protection | |||
EXECUTIVE | |||
==SUMMARY== | |||
This Annual Radiological Environmental Operating Reportdescribes theV.C. Summer Environmental Monitoring Program andtheprogram results thecalendar for year 2020. | |||
Included are the identification ofsample locations, descriptions ofenvironmental sampling andtype of analysis. Comparisons ofpresent environmental radioactivity levels and preoperational environmental data, landusecensus evaluation, dosescalculated from environmental measurements, anda summaryofenvironmental radiological sampling results arepresented. Quality assurance practices, sampling deviations andunavailable samples are also discussed. | |||
Sampling activities wereconducted as prescribed bytheOffsite DoseCalculation Manual (ODCM) for V.C. SummerNuclear Station (VCSNS) andapplicable Health Physics Procedures. Required analyses wereperformed anddetectionlimits metfor required samples with deviations noted. Samples werecollected comprising onethousand twohundred eighty-twoanalyses (1,282) performed tocompilethe data forthe2020Environmental Report. | |||
Supplemental samples comprising twohundred ninety-five (295)analyses wereperformed on somemedia additional for information. Basedonthe results from theannual land usecensus, the current number ofsampling sites for V.C.SummerNuclear Stationissufficient. | |||
Radionuclides observed intheenvironment in2020from V.C. Summer effluent releases werewithin therange ofconcentrations observed inthepast. Radiation dosecalculated from sample results isless than observed withnormal fluctuationin natural background. Itis therefore concluded that VCSNSoperations haveno significant radiological impact on the health andsafety ofthepublic orthe environment. | |||
i | |||
TABLEOF CONTENTS PAGE INTRODUCTION 1 DESCRIPTIONOFTHE RADIOLOGICAL PROGRAM2 ENVIRONMENTALMONITORING LANDUSECENSUS 4 MONITORING RESULTSANDDISCUSSION 4 CONCLUSION 7 ii | |||
LISTOFTABLES TABLE PAGE 1 Monitoring Methods for Critical Radiation Exposure 3 Pathways 2 2020Fission andActivated Corrosion Product Activity in 6 Sediment 3 Required Sampling Site Locations 8 4 Results ofthe2020Land UseCensus Verification 11 5 Critical Receptor Evaluation for 2020 12 6 Radiological Environmental Monitoring Program 13 Specifications 7 Supplemental Radiological Environmental Monitoring 18 8 Radiological Environmental Monitoring Program Summary 22 for 2020 9 Radiological Environmental Monitoring Program 28 Preoperational (Baseline) Summary 10 Results of2020Environmental Inter-Comparison Program 33 with Independent Lab, Eckert & ziegler Analytics, Inc. | |||
11 2020Environmental Sampling Program Deviations 35 iii | |||
LISTOFFIGURES FIGURE 1-1 Control Site Locations (50 mile radius around the Virgil C. Summer Nuclear Station) 1-2 Radiological Monitoring Program Local IndicatorSample Sites (5mile radius aroundVirgil C.SummerNuclear Station) 1-3 Radiological Monitoring Program Local IndicatorSample Sites (1 mile radius around Virgil C. Summer N uclear Station) 1-4 Radiological Monitoring Program Security AreaGround Water Sites. | |||
1-5 Radiological Monitoring Program Protected AreaGround Water Sites andIndependent Spent Fuel Storage Installation (ISFSI). | |||
iv | |||
INTRODUCTION VirgilC.Summer Nuclear Station (VCSNS) utilizes a pressurized water reactor rated at2900 MWt (990 MWegross). Thestation islocated adjacent totheMonticello Reservoir nearJenkinsville, South Carolina andapproximately 26miles northwest ofColumbia. | |||
VCSNS achieved initial onOctober criticality 22,1982, reached 50%power December 12, 1982 and100% power June 1983following 10, steamgenerator feed water modifications. | |||
Steam generators were replaced inthefall of1994. During theninth refuel theplant was uprated to2900 MWt (990MWegross). VCSNSiscurrently operating inthe26th fuelcycle. | |||
VCSNSisoperating inconjunction with theadjacent Fairfield PumpStorage Facility (FPSF) which consistsof eight reversible pump-turbine units of60 MWecapacity each. | |||
During periods ofoff-peakpower demand, baseload generating capacity isused topump water from Parr Reservoir toMonticello Reservoir. Monticello Reservoir hasa surface area ofapproximately 6800acres and lies about 150 feet above Parr Reservoir whosefull pool area isapproximately 4400acres.The pump-turbine units operate inthegenerating mode tomeetpeak system loads while Monticello Reservoir also provides condenser cooling water forVCSNS. Cooling water intakeand discharge strt)ctures areseparated byajetty to ensure adequate circulationwithin thereservoir. | |||
VCSNSislocated inFairfield County which, along with Newberry County, makesup theprinciple area within a 10mile r adius of the plant. This area ismainly with forest only about 30%devoted tosmall farming activities principally producing small grains, feed crops andbeef cattle. Significantportions ofLexington andRichland Counties areencompassed withinthe20mile radiusoftheplant andexhibit similar agricultural activities. Columbia, the statecapital, istheonly large citywithin the50mile radius of the plant. Small agricultural concerns arepredominant, but makeupless than 50%oftheland area. Themain industrial activity isconcentrated around Columbia andisgenerally greater than 20miles from the VCSNS. | |||
Liquid effluents from VCSNSarereleased into theMonticello/Parr Reservoirs attwo discharge points: the Circulating Water Discharge Canal (CWDC) and the FPSF Penstocks. | |||
Non-nuclear drains arereleased totheCWDC.Effluent from theliquid wasteprocessing system andprocessed steamgenerator blowdownarereleased through thepenstocks. | |||
Radioactive gaseous effluentsfrom V CSNS are released from t wo points: theMainPlant Vent andtheReactor Building Purge Exhaust, all considered ground level releases. | |||
In2012construction beganon theIndependent Spent Fuel Storage Installation (ISFSI),andconcluded inJanuary 2016. Thefirst dry cask storage campaign began March 26,2016andfinished inthefirst weekofMay2016. Four casks wereloaded during this evolution.A second campaign during thesecond quarter of2019loaded four additional casks totheISFSI for a totalofeight casks. | |||
Radioactive liquidandgaseous releases from the facility andtheir potential influence onthe surrounding biotaandmanaretheprimary concern ofthe Radiological Environmental Monitoring Program atVCSNS.This report summarizes theresults oftheRadiological Environmental Monitoring Program conducted during 2020. Datatrends, control/indicato andpreoperational/operational data, inter-comparisons, andother data interpretations are presented. | |||
1 | |||
DESCRIPTION OFTHERADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM The Radiological Environmental Monitoring Program iscarried outinits entirety by Dominion Energy South Carolina. Theprogram hasbeendesigned tomeetthefollowing general commitments: | |||
1 To analyze selectedsamples inimportant anticipated pathways forthe qualification andquantification ofradionuclides released totheenvironment surrounding VCSNS. | |||
: 2. To establishcorrelations between levels ofenvironmental radioactivityand radioactive effluents from VCSNSoperation. | |||
Theprogram utilizes theconcepts ofcontrol/indicator andpreoperational /operational inter-comparisons inorder toevaluate the adequacy ofradioactivity source control andto realisticallyverify theassessment ofenvironmental radioactivity levels andsubsequent radiation dose toman. | |||
Sample media andanalysis sensitivityrequirements havebeenestablished toensure thatthemaximum dosepathways aremonitored and sensitivities represent a small fraction ofannual release limits. Theserequired Lower Limitsof Detection (LLD's) areverified to have beenmetbycalculating Minimum Detectable Activity (MDA) for eachsample based onactual counting parameters relevant toeachsample. Inall cases theachievedMDAwas lower than the LLD. Effluent dispersion characteristics, demography, hydrology andland use have been considered inselection ofenvironmental sampling locations. These criteria were usedtoestablish boththepreoperational and operational phases of theRadiological Environmental Monitoring Program. Elements oftheprogram monitor the impact ofboth gaseous andliquid effluents released from VCSNS. | |||
Specific methods used inmonitoring thepathways ofthese effluents which may lead toradiation exposure ofthepublic, based onexisting demography, aresummarized below inTable 1.Requirements oftheRadiological Environmental Monitoring Program are specified intheVCSNSOffsite DoseCalculation Manual (ODCM). | |||
2 | |||
Table 1 Monitoring Methods forCritical Radiation Exposure Pathways Effluent Release Exposure Pathway Monitoring Media T e Gaseous Immersion Doseand Thermoluminescent Dosimetry other External Dose (TLD) Area M onitoring,Air Sampling, Vegetation(Ingestion) Vegetation andFoodCrop Sampling, Milk (Ingestion) Milk Sampling, Grass (Forage) | |||
Sampling Liquid Fish (Ingestion) Fish Sampling, Water & Shoreline Surface Water Sampling, Ground Exposure (Ingestion and Water Sampling, Shoreline and Immersion) Bottom Sediment Sampling, Drinking Water Drinking Water Sampling Inestion Monitoring sites indicative ofplant operating conditions aregenerally located within a 5 mile radius oftheplant. Table 6 provides a list of ODCM required sampling locations. | |||
Table 7 provides ofsupplemental a list samplinglocations. Mapsshowing radiological environmental sampling locations within a radius ofapproximately 5 miles from VCSNSare presented asFigures 1-2through 1-5. Figure 1-1 shows monitoring atdistances sites greater than 10miles from theplant. Background radiation levels vary across the monitoredarea of interest. | |||
Inaddition topreoperational/operational datainter-comparisons, control/indicator data inter-comparisons areutilized. This isdonetoassess theprobability that anyobserved abnormal measurement ofradioactivity concentration isdueto random or regional fluctuations ratherthantoatrue increase in localenvironmental radioactivityconcentration. | |||
Environmental datais gathered through multiple typesof sampling and measurements atspecific locations. Several multiple sampling combinations arein use around theVCSNS.Forexample, all airsampling locations serveas environmental dosimetry monitoring locations. Atthese locations, airborne plant effluents aremonitored for gammaimmersion dose (noble gases), in addition to aircontaminants. Monitoring locations Site 6 (1.0 mile ESE) andSite 7 (1.0 mile E)havebroadleaf vegetation gardens for monitoring gaseous effluent deposition (ingestion pathway) inthetwosectors having the highest deposition coefficients(D/Q) with real potential forexposure. Monitoring location Site 18(16.5 miles S)serves asa control location for d irectradiation andSite 40 (11.9 miles SSE) serves asa control location for garden monitoring. | |||
Liquid effluentsaremonitored using three different monitoring media (fish, bottom sediment andsurface water) at the twomost probable affected bodiesofwater a round the plant: Site Parr 21, Reservoir (2.7 miles SSW) andSite Monticello 23, Reservoir (0.5 miles ESE). The control location for l iquideffluent comparisons is at Site22,Neal Shoals (26.0 miles NNW) onthe Broad River. | |||
3 | |||
Quality ofanalytical measurements isdemonstrated byparticipation ina laboratory inter-comparison program. Results oftheinter-comparison program with anoutside vendor and VCSNS Count Roomweresatisfactory in2020andaresummarized inTable 10.The results of each ofthese quality control checks oftheRadiological Environmental Monitoring Program verify the technical credibility ofanalytical data generated andreported bythe program. | |||
LANDUSECENSUS Annually a land use census isperformed within a 5 mile radius ofVCSNStoverify the appropriate sitingof sample locations. In addition, thelocation ofthemaximum exposed individual (MEI) isidentified toensure theappropriate location isused for calculation of offsite doseimpact from Summer Station gaseous effluents. Theresults oftheland use census performed in2020are included inTable 4.A verification ofthemaximum exposed individual location ispresentedin Table 5.Identification ofthe highest offsite doselocations wasperformed bycalculating a hypothetical dose based onsource term from theOperating License Environmental Report and2020 meteorological data. Exposure pathways modeled inthe analysis werethose identifiedduring the land usecensus. | |||
Thelocation andpathway presentlyused intheODCMfor offsite organ dose calculations (E 1,1 miles - | |||
residence/garden) was found to have t heh ighest calculated dose. | |||
Inaddition, theODCMrequired environmental gardens (ESE 1.0 andE 1.0miles) were found tohave calculated doses higher than anyreal receptor. Therewerenomilking animals ordairy activity found within 5 kilometers ofVCSNS.Therefore, changestotheODCM gaseous effluent calculations orgarden sample locations are not indicated. | |||
MONITORING RESULTS ANDDISCUSSION Theresults oftheRadiological Environmental Monitoring Program for2020are summarized inTable 8.Forcomparison, preoperational data aresummarized inTable 9. | |||
The Radiological Environmental Programattained a program compliance rateof approximately 99.8%. A listing ofprogram deviations andtheir respectivecauses are included inTable 11. Analysis oftheimpact ofthese omissions verified that program quality hasnot been affected. | |||
Corbicula harvest forpossible humanconsumption wasobserved inLake Monticello in2005. Since that time Corbicula analysis hasbeenincorporated intheSupplemental Sampling Program. Samples werecollected andanalyzed forgammaemitting isotopes. No gammaemitting nuclides weredetected. | |||
Gross betaactivities measured inairparticulate samples collected atindicator locations around VCSNSwereconsistent with preoperational levels andnotstatisticall significant from control locations. Thehighest site-specific meanactivity (2.13E-2 pCi/m3) wasmeasured atindicator location Site 30(Construction SiteGate0.5miles SSW). The results indicate that theoperation ofVCSNShasnot contributed todetectable increases of airborne gross beta activity inthe environment. | |||
Gammaspectroscopy measurements ofcomposited air particulate samples and activated charcoal cartridges support the gross beta activity trend. Only natural background 4 | |||
activities weredetected. Thehighest MDAvalues atindicator locationsfor 13403, 137Cs and 131IWere 2.02E-3, 2.10E-3 and1.72E-2 pCi/m3, respectively andall metprogram analytical requirements fordetection capability. Airsample collection rate forindicator/control air sam'ples was100%. | |||
Environmental dosimetry measurements did not differ significantly from preoperational measurements. Indicator andcontrol dosimetry measurements also showed noappreciable differences. Comparison with other operational years showsnostatisticall significant difference. Monitoring location Site 55(St. Barnabas Church 2.8miles E)wasthe indicator locationshowing the highest meanexposure rate of1.05E+1 pR/hr. This value is consistent with thehighest meanexposure rate of1.40E+1 pR/hr measured during the preoperational period.in April of2015six TLD sites wereaddedtotheEnvironmental Dosimetry program. These added TLD'swereplaced around theboundary ofthe Independent Spent Fuel S torage Installation (ISFSI) which b egan c ask s torage on March 26,2016. Todate there hasbeen no statistically significant increase indoserate above background fromDryCaskStorage activities. TLD samplecollection rateforall indicator/control was98.5%. | |||
Gammaspectroscopy measurements ofsurface water samples didnotindicate the presence ofactivated corrosion orfission products above the respective MDAfor indicator sites. Tritium analysis did notindicate thepresence oftritium above therespective MDAfor indicator sites. Sample collection rate for all indicator/control surface water samples was 100%. | |||
Gammaspectroscopy measurements oftheODCM required ground water samples did notindicate thepresence ofactivated corrosion orfissionproducts above therespective MDAs.Tritium wasdetected within thesite boundary atSite 123 (NPDES Well GW-160.34 miles SSE), infour quarterly samples atconcentrations of2.80E+3 pCi/L, 2.28E+3 pCi/L, 1.92E+3 pCi/L, and1.93E+3 pCi/L. GW-16isa shallow supplemental monitoring site used tomonitor for chemical contaminants around theIndustrial andSanitary Waste Treatment System. If this ground water represented a credible exposure pathway, maximum dose projection assuming consumption of730liters per year would result ina dose that does not exceed 0.25 mrem. These levels aresubstantially less than the 2.00E+4 pCi/L drinking water standard. Sample collection rate for indicator/control ground water samples was100%. | |||
Gammaspectroscopy measurements ofdrinking water samples collected fromSite 28(Jenkinsville water supply) andSite 17(Columbia Water Works 25.0 miles SE) didnot indicate thepresence ofactivated corrosion orfission product above activity therespective MDAs.Tritium wasdetected aboveMDAin1 sample taken atSite 17(Columbia Water Works 25.0 miles SE) ata concentration of9.35E+2 pCi/L. This concentration well is below thedrinking water standard of2.0E+4 pCi/L. If an individual consumed drinking water ata concentration pCi/L the of 9.35E+2 for entire year, assuming a totalconsumption of 730 Liters, theresulting dose would havebeenless than 0.1mrem.Sample collection rate for indicator/control drinking water samples was100%. | |||
There wereno milk samples collected in2020. Milksampling isrequired tobe performed atthethree highest doselocations within 5kilometers oftheplant orat5 to8 kilometers oftheplant, if doses arecalculated tobegreater than 1 mrem/year. Presently there areno locations meeting this criteria forindicator dairies. Theclosest dairy is approximately 7 kilometers from (see theplant Table 5 | |||
4). Milk samples will be obtained from | |||
this dairy if gaseous releases from theplant exceed 5% ofquarterly organ doselimits or radionuclides (attributed to the operation ofVCSNS) are detected in broadleaf vegetation, grass orair samples atconcentrations greater than required LLDs. | |||
Gamma spectroscopy measurement ofsupplemental grass samples collected indicated 137CS in5 of12 samples atSite 2 (transmission line 1.2miles SW)at concentrations ranging from1.76E+1 pCi/kg to 8.04E+1 pCi/kg. The maximum preoperational control a.ctivity was 3.40E+2 pCi/kg. Samplecollection ratefor indicator/control supplemental grass was100%. | |||
Gammaspectroscopy measurements wereperformed onsupplemental grass and soil samples collected in response toa liquid effluent spill in2011atSite 25(Fairfield Pump Storage Remediation Area 0.9 miles WNW). Noneofthegrass andsoil samples collected indicated the presence ofactivated corrosion orfission products above the respective MDAs. | |||
Gammaspectroscopy measurements ofthebroadleaf samples collected didnot indicate the presence ofactivated corrosion orfissionproducts above therespective MDAs. | |||
AII oftherequired indicator/control broadleaf samples werecollected. | |||
Gamma spectro.scopy measurements of all non-leafy (other vegetation) supplemental samples collected didnotindicate thepresenceof activated corrosion orfission products above therespective MDA. | |||
Gammaspectroscopy measurements offish samples collected indicated 13703 jn1 of6 samples taken atSite 21(Parr Res.2.7miles SSW)at a concentration of1.19E+1 pCi/kg. All oftherequired indicator/control fishsamples werecollected. | |||
Gammaspectroscopy measurements ofsediment samples detected 137CS in2 of2 indicator samples taken atSite 137CSWaS alSO 21(Parr Res. 2.7miles SSW) atconcentrations of4.82E+1 and3.24E+1 pCi/kg. detected in2 of2 control samples taken atSite 22 (Neal Shoals 26miles NNW) atconcentrations of1.52E+1 pCi/kg and5.30E+1 pCi/kg. | |||
Historically 137CS leVels atthecontrol site haveranged from 1.8E+1 pCi/kg to1.0E+3 pCi/kg. | |||
Thelevel of137CS ObSerVed atSite 21 (Parr Res.2.7miles SSW) isconsistent with background conditions intheenvironment. However, ifthe137CS WaS attributed toSummer Station the dose would be0.004 mrem/year. AII required indicator/control sediment samples werecollected. | |||
Table 2 2020Fission andActivated Corrosion Product Activity inSediment Corresponding Location RadionuclideActivity (pCi/kg)Calculated Annual Dose E uivalent mrem/r Total Bod p, Maximum Mean Maximum Mean Reservoir 137Cs 4.82E+1 4.03E+1 4.05E-3 3.39E-3 6 | |||
CONCLUSION As inprevious years ofVCSNSoperation, thepresence offission product activity attributed toresidual fallout fromatmospheric weapons andtheChernobyl testing accident were detectedin environmental media including sedimentandgrass. | |||
No detectable fissionactivation or product activity toVCSNS attributed operations was observed inenvironmental media with theexceptionof: | |||
* Tritium in supplemental ground water samples takenatSite 123(NPDES Well GW-160.34 miles SSE) within thenuclear owner station, c ontrolled area. | |||
a Tritium ina drinking water sample taken atSite 17(Columbia WaterWorks25 miles SE). | |||
Theaverage natural background for direct exposure asdetermined fromcontrol locations is68.9 mrem/year. Thehypothetical calculated maximum exposure fordrinking water andsediment exposure iswell within the normal fluctuationsofnaturalterrestrial and cosmic background. This dose would notbeexpected toresult inobservable onthe effect ecosystem orgeneral public. Theresults oftheRadiological Environmental Monitoring Program, therefore, substantiate thecontinuing adequacy ofsource controlatVCSNSand conformance ofstation operation to10CFR50,Appendix Idesign objectives. | |||
7 | |||
Table 3 Required Site Sampling Locations MiEEEEiEEMM MiEMEM EEEEEEEEEM EiEEM MEEEEEMEEEEEEiEEEE EiEM EEiiBEEEMEM EMEHME EEEEEEEiMEM EIMEEEEM EIEEiEEEEEE EEEiH EEEEEEIM EEEIEEEM EEEMEEEEMM EIEREMEEM EEEEEEEEEMEEM EEEEEEEEMEEM EEEEIEEIEEMEM EEEEEEEEEEM EEEiEEEEEM EERMEEiBMEEEMEEM EEEMEEEMEiiMEM EEEEEEEEEMM EEEMEEEEEEEEEM EEEMEAEEEEEEEEEMEM EEEEEEEMEEM EENIEEEEEIEEEliEEEEliBMMEHEEEMEM EEEEHiEEEMEM EEEEHEEEMEEM EIEiEEEMEEM EIEEEEEEMEM EEEEEEEEEMEEM ii i | |||
ii ii ii i | |||
8 | |||
3 (cont) | |||
Table - | |||
Sampling Required Site Locations EEEMEEEiMEM EEEEEEEEMM EEEMiBEMM EEEEEEEEEM EEEEEEEEMM EEEEEiEEEEM EEEMEEEMEM EEEMEEEEM EEEMEEHMEEEEEEM EEEMEEEEEEEEEM EEEEEEEEMM EEE EEEEEEEEE IIIIliliE EEEE AWEl!EM lilEliE | |||
!I1111E EilililiBIM EAEBEIE AEIilillMMEEil!M 9 | |||
Table 3 (cont) | |||
Required Sampling Site Locations Footnotes | |||
: 1. Distance given isthedistance between thesite location andtheVCSNSreactor containment building. | |||
: 2. Direction given indegrees fromtrue north-south line through centerofreactor containment building. | |||
: 3. Sample Types: | |||
AP= Air Particulate GW= Ground Water GA= Garden RI= Air Radiolodine DW= Drinking Water FH= Fish DQ Quarterly | |||
= TLD MK Milk | |||
= BS= Bottom Sediment SW= Surface Water GR = Grass (Forage) | |||
: 4. Sites 14and16arenotpresently in use. If conditionschange, requiring a renewal of dairy sampling these sites willbereactivated. | |||
: 5. Site 30consists oftwolocations inthesame sector. Theair samplerislocated 0.5 miles from thereactor tosupport construction ofa newfacility. TheTLDislocated 1.0 mile from thereactor inthesamesector. | |||
: 6. Site 40(11.9 miles SSE)serves asa control location for garden monitoring which is the location of the Station's Emergency Operating Facility. | |||
10 | |||
MLES MLKED No. | |||
NEAREST GOAT MLES 49 482 Verification LKE No. O Census Use CATTLE NEAREST Couns Dairy ShireyGraham LandLE 46 2020 the of GARDEN NEAREST Wiedemann Randy Resuts 4 | |||
MLES 373296 | |||
.5 .53 | |||
.8.04 | |||
.44354 239 284 302 B | |||
259 249 325 286 386 Tabe Cae Residen Garden Beef NEAREST RESDENCE Guinyard Crumbin Oiver Marin Gregg Gregory Thonas Roy are Meadory Mann Whie Lee Bessie Ronnie Carrie Mary Rd Rd Wadrop Workman Windmi Carer Bouw Mann Peak Wiiam 243Louise Hope Key Meyer C | |||
Coses March Frank Goa Coses Coses Coses n n n n P. C Change Change Chang Chang SECTOR N | |||
NNE NEENE E | |||
SSE ESE SE S WSW SSWNW SWW WNW NNW A B C D | |||
Table 5 Critical Receptor Evaluationfor 2020 NAME SECTOR MILES PATHWAY X/Q D/Q DOSE* | |||
mReml P.Oliver N 3.73 Res 1.98E-07 5.86E-10 7.38E-03 T.Crumblin NNE 2.96 Res 3.93E-07 1.31E-09 1.47E-02 G.Guinard, Jr. NE 1.5 Res 2.09E-06 7.37E-09 7.86E-02 B.Gre ENE 1.53 Res 1.80E-06 6.31E-09 6.78E-02 Garden 7 ** E 1 Res,Gar 3.70E-06 1.50E-08 3.97E+00 R.Meado1 E 1.18 Res 2.48E-06 9.80E-09 9.37E-02 Garden 6 ** ESE 1 Res,Gar 2.08E-06 7.85E-09 2.10E+00 C.L Martin ESE 1.04 Res 1.89E-06 7.09E-09 7.12E-02 M.White SE 1.44 Res 6.16E-07 3.17E-09 2.37E-02 R.Mann SSE 2.39 Res 1.02E-07 7.27E-10 4.04E-03 K.Boulware S 3.54 Res 4.73E-08 4.45E-10 1.92E-03 S.Counts S 4.9 Res, B 2.43E-08 2.16E-10 2.24E-02 H.Carter SSW 3.02 Res 7.23E-08 9.30E-10 3.06E-03 W.Waldro SW 2.84 Res 8.86E-08 1.22E-09 3.79E-03 243PeakRd WSW 3.25 Res 6.67E-08 6.56E-10 2.72E-03 Ma erWindmill Rd W 2.49 Res 1.38E-07 8.96E-10 5.41E-03 Graham Dai*** W *** | |||
Res,C/M *** *** | |||
1.79E-01 CCMann WNW 259 Res 8.46E-08 3.86E-10 3.23E-03 R.Wiedemann WNW 4.16 Res,Gar 3.12E-08 1.31E-10 3.47E-02 L Workman NW 3.86 Res 8.10E-08 2.99E-10 3.05E-03 F.March NNW 2.86 Res 2.95E-07 9.34E-10 1.10E-02 ODCMOr anDose E 1.1 Res,Gar 2.93E-06 1.17E-08 3.11E+00 Pathway Res= Residence B = Beef G = Goat Gar Garden | |||
= C/M Cow/Milk(Infant)G/M= Cow/Milk(infant) | |||
= | |||
Footnotes: | |||
' Maximum exposed individual. | |||
Hypothetical onOperating dosebased LicenseEnvironmental Report Source Term. | |||
ODCMrequired environmental gardens. | |||
Doses summed togive total for receptor. | |||
Resident doseat5.14 milesandCow/Milk doseat4.82 miles. | |||
12 | |||
Table 6 Radiological Environmental Monitoring ProgramSpecifications Exposure Pathway and/or Criteria forSelection of Sampling andCollection Sample Type& Frequency of Sample Number& Location Frequency Location Analysis AIRBORNE: | |||
I.Particulate A)3 Indicator samples from Continuous sampler operation 2 Gross beta followingfilter locations close tothe site with weekly collection. 7 change; Quarterly boundary, indifferent 30 composite (by location) sectors, ofthe highest for gammaisotopic. | |||
calculated annual average ground level D/Q ordose.2 B)1 Indicator sample tobe Continuous sampler operation 6 Gross beta followingfilter taken closeto the site with weekly collection. change; Quarterly boundary inthe sector composite (by location) corresponding tothe for gammaisotopic. | |||
residence having the highest anticipated offsite ground levelconcentration ordose.2 C)1Indicator sample tobe Continuous sampler operation N/A Gross beta followingfilter taken atthe location ofone with weekly collection. change; Quarterly ofthe dairiesbeing composite (by location) sampled meeting the for gammaisotopic. | |||
criteria ofVII(A).24 D)1Control sample tobe Continuous sampleroperation 17 Gross beta followingfilter taken atalocation atleastwith weekly collection. change; Quarterly 10air milesfrom the site composite (by location) andnotin the most for gammaisotopic. | |||
prevalent wind directions.2 RadiolodineA)3 Indicator II. samples tobe Continuous sampler operation 2 GammaIsotopic for taken attwolocations as with weekly canister collection.7 lodine 131weekly. | |||
given inI(A)above. 30 B)1Indicator sample tobe Continuous sampler operation 6 Gamma Isotopic for taken atthe location as with weekly canister collection. lodine 131 weekly. | |||
given inI(B)above. | |||
C)1Indicator sample tobe Continuous sampler operation N/A Gamma Isotopic for taken atthe location as with weekly canister collection. lodine 131weekly. | |||
given inI(C)above. | |||
D)1Control sample tobe Continuous sampler operation 17 Gamma Isotopic for taken ata location similarwith weekly canister collection. lodine 131weekly. | |||
innature tol(D) above. | |||
13 | |||
Exposure Pathway Criteria and/or Sample for Selection of Sampling andCollection Sample Type& Frequency of Number& Location Frequency Location Analysis lil. | |||
Direct A)13Indicator stations to Monthly orquarterly Gammadosemonthly 1,2,3,4,5,6, or form andinner ring of exchange5J twoormore 7,8,9,10,29, quarterly. | |||
stations inthe13 dosimeters ateach location 30,47 accessible sectors within 1 to2 miles oftheplant. | |||
B)16 indicator stations toform Monthly orquarterly Gammadosemonthly 12,13,32,33, or anouter ringofstations in exchange5.7 twoormore quarterly. | |||
34,35,36,37, the16 accessible sectors dosimeters ateach location.41,42,43,44, within 3to 5 miles ofthe 46,53,55,60 plant. | |||
C)11Stations tobe placed in Quarterly exchange7; twoor Gammadosequarterly. | |||
16,17,18,19, special interestareas such moredosimeters ateach 20,31,45,52, aspopulation centers, location. 54,56,58 nearby residences, schools andin4 or5 areas toserve ascontrols. | |||
D)6 Stations tobeplaced Quarterly exchange7 twoor Gamma& neutron 78,79,80,81, dose around theISFSI more dosimeters ateach 82,83 quarterly. | |||
boundary. location. | |||
WATERBORNE IV. Surface A)1 indicator sample Timecomposite samples6 with 213 Gammaisotopic monthly Water downstream tobetaken at collection every month.5 with quarterly composite a location which allows for (by location) tobe mixing a dilutioninthe analyzed for tritium.7 ultimate receiving river. | |||
B)1Control sample tobe Timecomposite samplesewith223 GammaiSOtopiC monthly taken ata location onthe collection every month.s with quarterly composite receiving river . | |||
sufficiently (by location)tobe analyzed for tritium.7 far upstream such that no effects ofpumped storage operation are anticipated. | |||
C)1 Indicator sample tobe Timecomposite samplese with 233 Gamma lSOtopic monthly taken intheupper reservoir collection every month 5 with quarterly composite ofthe pumped storage (by location) tobe facility atthe plant analyzed fortritium.7 discharge canal. | |||
V.Ground Water A)12Indicator samples tobe Quarterly grab sampling.7 6,26,27, Gammaisotopic and taken within theexclusion 101-103, tritium analyses boundary andinthe 106, quarterly.7 direction ofpotentially 108,110, affected ground water 112-114 supplies. | |||
B)1 Control sample from Quarterly grab sampling.7 59 Gamma isotopic and unaffected location. tritium analyses quarterly.'7 14 | |||
Pathway Criteria a d/or Sample for Selection of SamplingandCollection Sample Type& Frequency of Sam le N umber & Location Frequency Location Analysis VI.Drinking A)1 Indicator sample from a Monthlygrabsampling.5 28 Monthly5 gammaisotopic Water nearby public ground water andgross beta analyses supply source. andquarterly7 composite for tritiumanalyses. | |||
B) 1 Indicator (finishedwater) Monthlycomposite sampling. 17 Monthly5 gammaisotopic sample fromthe nearest andgross beta analyses downstream watersupply. andquarterly7 composite for tritiumanalyses. | |||
C)1Control (finished water) Monthlycomposite sampling. 39 Monthly5 gammaisotopic sample from anunaffected andgross beta analyses water supply. andquarterly7 composite for tritiumanalyses. | |||
INGESTION: | |||
Vil.Milk4 A)Samples from milking Semimonthly whenanimals Tobe Gammaisotopic andI-animals in3 locations areon pasture5 monthly other supplied131analysis 5 kmhaving whenmilk semimonthly5 within the times5 when highest dose potential.If animals are animals areonpasture, there arenone then1 found in monthly other times.5 sample from milking accordance animals ineach of3 areas criteria with between 5to8 kmdistance VIIA. | |||
where doses are calculated tobegreater than 1mrem per year 15 B)1Control sample tobe whenanimals Semimonthly 16 Gammaisotopic andI-taken atthe locationofa areonpasture5 monthlyother 131analysis dairy > 20miles distance times,5a' semimonthly5 when andnotinthe most animals are onpasture, prevalent wind direction.2 monthly other times.5 5 | |||
C)1 Indicator grass (forage)Monthly whenavailable Tobe Gamma isotopic. | |||
sample tobetaken atthe supplied location ofoneofthe whenmilk dairies being sampled are animals meeting the criteriaof found in VIl(A), above, when accordance animals are onpasture. with criteria Vll.A. | |||
D)1Control grass (forage)Monthly whenavailable.50'16 Gammaisotopic. | |||
sample tobetaken atthe location ofVII(B) above. | |||
15 | |||
Exposure Pathway Criteria and/or Sample for Selection of Sampling andCollection Sample Type& Frequency of Number& Location Frequency Location Analysis VIII.Food A)2 samples ofbroadleaf Monthly whenavailable? 6 Gamma isotopiconedible Products vegetation grown inthe2 7 portion. | |||
nearest offsite location of highestcalculated annual average ground level D/Qif milk sampling isnot performed within 3 kmorif milk sampling isnot performed ata location within 5to 8 kmwherethe doses are calculated tobe greater than 1 mrem/yr.10 B)1Control sample for the whenavailable? | |||
Monthly 40 Gamma isotopiconedible samefoods taken atleast portion. | |||
10miles distance andnot inthe mostprevalent wind direction ifmilk sampling is notperformed within 3 km orif milksampling isnot performed ata location within 5to8 kmwhere the doses are calculated tobe greater than 1mrem/yr.10 IX.Fish A)1Indicator sample tobe collection.1 SemiannualS 233 GammaiSOtopic onedible taken ata location inthe portions semiannually.S upper reservoir. | |||
B)1Indicator sample tobe SemiannualS collection.1 213 Gamma onedible isotopic taken ata location inthe portions semiannually.9 lower reservoir. | |||
C)1Control sample tobe SemiannualS collection.1 223 taken ata location onthe portions semiannually.S receiving river sufficiently far upstream such that no effects ofpumped storage operation areanticipated. | |||
AQUATIC: | |||
X.Sediment A)1Indicator sample tobe Semiannual grabsample.S 233 Gammaisotopic. | |||
taken ata location inthe upper reservoir. | |||
B)1 Indicator sample tobe grab Semiannual sample.S 213 Gamma jgotopje, taken onornear the shoreline ofthe lower reservoir. | |||
C)1Control sample tobe grab Semiannual sampleS 223 Gamma isotopic. | |||
taken ata location onthe receiving river sufficiently far upstream such that no effects ofpumped storage operation areanticipated. | |||
16 | |||
Table 6 (cont) - | |||
RadiologicalEnvironmental Monitoring Program Specifications FOOTNOTES | |||
: 1. Fish include 3 groups (Bass, Bream/Crappie, Catfish/Carp.) | |||
: 2. Sample sitelocations are based on5-year average meteorological analysis. | |||
: 3. Though generalized areas are noted forsimplicityofsample site enumeration, airborne, water andsedimentsampling isdoneatthesamelocation, whereas biological sampling sites aregeneralized areas in ordertoreasonably assure availability ofsamples. | |||
: 4. Milking animal andgardensurvey results will beanalyzed annually. | |||
Ifthesurvey should indicate newactivity theowners shall becontacted with regardtoa contract forsupplying sufficient samples. Ifcontractual arrangements canbemade,site(s) will beaddedfor additional milk sampling uptoatotal of three Indicator locations. | |||
: 5. Nottoexceed 35days. | |||
: 6. Timecomposite samples aresamples whichare collected with equipment capable of collecting analiquot attime intervalswhich areshort relative tothecompositing period. | |||
: 7. Atleast onceper100days. | |||
: 8. Atleast once per18days. | |||
: 9. Atleast once per200days. | |||
: 10. Thedoseshall be calculated forthemaximumorgan andage group, using the guidance/methodology contained inRegulatory Guide 1.109, Rev.1 and the parameters particular tothesite. | |||
: 11. Milk andforage sampling atthecontrol locationisonly required whenlocations meeting thecriteria ofVil(A) arebeing sampled. | |||
17 | |||
Table7 Supplemental Radiological Environmental Monitoring ExposurePathway Criteria for Selection of Sampling and Sample Type& Frequency of and/or Sam le Sam leNumber & Location Collection Freuenc Location Analsis AIRBORNE: | |||
S-l.Particulate A) 1 Indicatorsample Continuous sampler 8 Gross betafollowing monitoring thenearest operation with weekly filter change; Monthly community with the highestcollection. Composite (by anticipated dose orground location) forgamma level concentration. isotopic. | |||
S-II.RadiolodineA) 1 indicator sample tobe Continuous sampler 8 Gammaisotopic for taken from the location of operation with weekly I-131 weekly. | |||
S-1(A) above. collection. | |||
S-III. | |||
Direct A) 5 stations tobeplaced Quarterly exchange7; two 61,62,63,Gammadose within theexclusion ormore dosimetersat 68& 99 quarterly. | |||
boundary. each location. | |||
B) 2 stations tobeplaced Quarterly exchange7; two 94,97 Gammadose around VCSNS sludge ormore dosimeters at quarterly. | |||
lagoons. eachlocation. | |||
WATERBORNE: | |||
Surface S-IV. A) 1 indicator sample tobe Composite samples with 77 Gammaisotopic and Water taken ofthe combined monthly collection 13,5 tpjtjum, wastewater discharge. | |||
B) 1 indicator sample taken at Daily sample with 72,73 Gammaisotopic and each storm drain outfall.monthly composite. tritium. | |||
Drinking S-VI. A) 1 Indicator (finished water) Quarterly. 99 Quarterly gamma Water sample tobetaken onsite. isotopic, gross beta and tritium analysis. | |||
B) 1 indicator (finished water) Quarterly. 31 Quarterly gamma sample ofpublic system. isotopic,gross beta andtritiumanalysis. | |||
18 | |||
Exposure Pathway Criteria forSelection of Samplingand Sample Type& Frequency of and/or Sam le Sam leNumber & Location Collection Freuenc Location Analsis INGESTION: | |||
S-Vil. Milk4 A) 1Sample from oneofthe Biweekly grab 14 Gammaisotopic and nearest affected dairies at sample.a,14.+ I-131analysis orbeyond 5 miles. biweekly. | |||
B) 1Control sample tobe Biweekly grab 16 Gammaisotopic and taken atthelocation ofa sample.e,14,+ I-131analysis dairy greater than 20miles biweekly. | |||
distance andnotinthe mostprevalent wind direction. | |||
C) 1Indicator grass (forage) Monthly when 14 Gammaisotopic. | |||
sample tobetaken atthe available.14 location ofS-VII(A) above. | |||
S-Vil. Milk4 D) 1Control grass (forage) Monthly when 16 Gammaisotopic. | |||
sample tobetaken atthe available.14 location ofS-Vil(B) above. | |||
E)2 Indicator grass (forage)Monthly when available. 2,7 Gammaisotopic. | |||
samples tobetaken at2 of thelocations beyond butas close tothe exclusion boundary aspractical where thehighest offsite sectorial ground level concentrations are anticipated. | |||
F)1Control grass (forage) Monthly whenavailable 40 Gammaisotopic. | |||
sample tobeused for routine monitoring along with S-VII(E) above. | |||
G)1 Indicator grass (forage)Quarterly whenavailable.25 Gamma isotopic. | |||
sample tobetaken at location ofpenstock leak. | |||
S-VIII.Food A) 1 Indicator sample of Annually during growing 6,7 Gammaisotopic on Products various types offoods season.11 edibleportion. | |||
grown inthearea surrounding theplant (root, fruit,grain). | |||
B) 1Control sample ofvarious Annuallyduringgrowing 40 Gammaisotopic on types offoods grown. (root,season.11 edibleportion. | |||
fruit,grain). | |||
Corbicula C)1 Indicator sample ofedibleSemiannual. 23 Gammaisotopic. | |||
portions. | |||
19 | |||
Exposure Pathway Criteria for Selection of Samplingand Sample Type& Frequency of and/or Sam le Sam leNumber & Location Collection Freuenc Location Analsis S-IX.Sediment/ A) 1Indicator sample from Semiannually. 72,73 Gammaisotopic. | |||
Sludge each storm drain outfall. | |||
B) 3 Indicator sludge Semiannually. Onsite Gammaisotopic. | |||
samples takenatsludge lagoons 006A,006B& | |||
008. | |||
C) 1 Indicator sample of Annually 25 Gammaisotopic. | |||
topsoil from penstock spill area. | |||
S-X. Ground Water A)11Indicator samples to be taken sampling.7107,111, Gammaisotopic grab Quarterly and withinthe exclusionboundary analyses 115-123 tritium andinthe directionofpotentially quarterly.7 affected ground water supplies. | |||
20 | |||
Table 7 (cont) Supplemental Radiological Environmental Monitoring FOOTNOTES | |||
: 1. Reserved forfuture use. | |||
: 2. Reserved for future use. | |||
: 3. Reserved for future use. | |||
: 4. Milkinganimal andgarden survey results will beanalyzedannually.thesurvey If should indicate newactivity theownersshall becontacted with regard toa contract forsupplying sufficientsamples. Ifcontractualarrangements canbemade,site(s) will beadded for additionalmilk sampling uptoa totalof 3 Indicator locations. | |||
: 5. Nottoexceed 35days. | |||
: 6. Reserved for future use. | |||
: 7. Atleast onceper 100days. | |||
: 8. Atleast onceper18days. | |||
: 9. Atleast onceper 200days. | |||
: 10. Reserved for future use. | |||
: 11. Atleast onceper 400days. | |||
: 12. Reserved for future use. | |||
: 13. Weekly, whencirculating water isnotoperational. | |||
: 14. Milk andgrass (forage) sampling isnotrequired VCSNSgaseous unless releases exceed 5%ofquarterly organ doselimits orradionuclides toVCSNS (attributed operation) are detected inbroadleaf vegetation, grass orair samplesatconcentrations than greater required LLD. Sampling should continue fortwomonths after plantreleasesarereduced toless than trigger levelsandmilk contamination levels havereturnedtobackground levels. | |||
+ TheODCMrequires semimonthly sampling whenanimals areonpasture,monthlyat times. | |||
other 21 | |||
o Number Measuremens Nonro O 0 0 0 0 0 O O 0 0 0 0 Locaions 53/53LLD LLD LLD .04E+ | |||
9/9 N/ALLDLLD LLDLLDLLD LLDLLD LLDLLD in,e Range o < < < o < < < < < < < < < | |||
Conro 22E2 | |||
.04E2 A A A 786E+0 452+0 A A A A A A A A A 440E 2020 Op for #/oa 405E2 53/53 4/4 .E+ | |||
.09E+ | |||
4/4LLD Mean @ange .05E+ | |||
o o o < | |||
0 Summary Mean Annua 23E2 | |||
.7E2 .05E+ | |||
A 986E+0 976E+0 O | |||
Program hes Hi wih ckn Lison, Barnabas, NNE Consrucion E | |||
SS Gae, Locaion Name Monioring ance mies Sie 30, Sie S.mies 28 55, Sie McCrory mies 66 3, 22 Sie Environmena "S | |||
a"8 | |||
#/ | |||
405E2 264/265 o LLD LLD LLD .E+ | |||
5/5 o | |||
.4E+ | |||
24/24 LLDLLD o < LLD LLD LLD LLDLLDLLDLLD en" Radioogica gng AH 207E2 930E3 A | |||
A A 86E+0 783E+0 442E+0 42E+0 A | |||
A A | |||
A A A A | |||
A A | |||
8 Tabe Deeci o | |||
52E3 | |||
.0E2 Max. 202E3 | |||
.72E2 20E3 50E2 70E2 60E2 N/AN/A .67E+0 20E+3 482+2 .99E+0 | |||
.5E+500E+0 30E+ | |||
.5E+ 30E+ | |||
'.5E+ | |||
23E+0 356E+030E+.86E+0 249E+0 358E+0.5E+ | |||
.5E+ | |||
Spec72 neres36 AcuaM Gamma36 Gamma24 Bea ec Perormed Anayses Quaery o | |||
ber CsCS38 36 S Mn Fe C0 seCo zn zrNbCs N | |||
38 Gamma Gross ecia H | |||
Gamma TLDWaer ped Sa o UniParicuae PahwaAirDirec Air Radioodin Ci/m Ci/ | |||
Surace | |||
o O O O O 0 0 0 0 O 0 0 O 0 O 0 Number Locaions | |||
#/oa LLDLLDLLDLLDLLD Range LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD Mean Conro A A A A A A A A A A A A A A A 2020 NoRe for # | |||
Mean Summary | |||
#/oa M | |||
Range Annua Mean Program hes Hi Monitoring wih Direcion Locaion Name Disance 23 Environmenta Locaions | |||
#/oa LLD Range LLDLLDLLDLLD LLDLLDLLD LLD LLD LLD LLDLLDLLDLLD ndicaor Radioogica A | |||
Mean A | |||
A A | |||
A A | |||
A A | |||
A A A A | |||
A A | |||
A A | |||
Max. | |||
8 Tabe Limi cont. o Deecions Lower .78E+0 Acua 63E+0 | |||
.79E+ | |||
60E+ | |||
.8E+ 490E+2 | |||
.5E+ 608E+0 200E+3 600E+0 | |||
.5E+704E+0 | |||
.5E+495E+0 30E+.8E+ | |||
30E+ | |||
.5E+ 50E+0 740E+0 30E+ | |||
.5E+ .8E+ | |||
.5E+ | |||
407E+0 60E+ | |||
482E+046E+0 269E+.5E+ | |||
Toa Spec52 o | |||
and Type P Anayses Number CS erormedi 4BaLa 52 H | |||
MnDOFe C0 Gamma eszn zrNbCS Cs Ba La o | |||
orUni Medium Waer Waer Coninued Ci/ | |||
Surace Ground | |||
o O O O O 0 O 0 0 0 O O 0 Number Locaions | |||
#/oa 4/2 LLD Range o < | |||
LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD Mean Conro 294E+0A 229E+0 A A A A A A A A A A A A 2020 44E NoRe for Op Mean 48+0 5/2 /2935E+2 M | |||
Summary | |||
#/oa Range o O2 o | |||
Annua Mean Program hes 297E+0935E+2 225E+0935E+2 Hi wih Direcion Monioring Locaion Name SEWorks, Works, Coumbia SE Coumbia mie.s,mies, 7, | |||
Waer Disance Sie 7, | |||
Waer Sie 25 24 Environmena Locaions | |||
#/oa Range 444+0 | |||
/24/24 935E+2 LLD LLD LLDLLDLLDLLDLLD LLDLLDLLDLLDLLD Radioogica o | |||
ndicaor A | |||
Mean 295E+0935E+2 225E+0 o | |||
935E+2 A | |||
A A | |||
A A | |||
A A | |||
A A | |||
A A | |||
A Con.Limi Lower o | |||
Max. .5E+ | |||
289E+0 Deecion 400E+0 482E+2 25E+0 229E+0 56E+0 | |||
.5E+28E+0 30E+596E+0 463E+0 30E+ | |||
.5E+ 227E+0 | |||
+ | |||
30E+ .0E+0 52E | |||
.5E 249E+0.89E+ | |||
60E+ | |||
.8E+ | |||
.5E+ | |||
260E+0 .5E+ | |||
347E+0 8 | |||
Tabe Acua Toa o | |||
andBea 36 PGross Anayses Number 36 Spec72 erormed'MnCoFe 6C0 2n 2r Nb Cs CSBa La Type H | |||
Gamma o | |||
orUni Medium Waere Drinking | |||
of O 0 0 0 0 O 0 0 O Number Locaions | |||
#/oa Range LLDLLD LLDLLD LLD LLD LLD LLD LLD LLD Mean Conro A A A A A A A A A A 2020 NoRe 0 for Summary M | |||
Mean | |||
#/oa Range | |||
/6 o | |||
Annua Mean .9E+ | |||
.9E+ | |||
Program hes Monioring Hi wih Direcion Locaion Name Disance Environmena Locaions | |||
#/oa RangeLLDLLDLLDLLD LLDLLD LLDLLD LLD | |||
.9E Parr Sie | |||
/2 SS Reservoir, 2, mies, | |||
.9E+ | |||
25 Radioogica ndicaor A | |||
Mean A | |||
A A | |||
A A | |||
A A | |||
A A | |||
o | |||
.9E+ | |||
.9E+ | |||
Con. | |||
Limi Max. | |||
8 o | |||
Deecion Lower Tabe Acua .34E+ | |||
205E+ .83E+ | |||
80E+ | |||
6.OE+ | |||
60E+ .3E+2 203E+ | |||
227E+26E+2 | |||
.3E+2 490E+ | |||
.84E+26E+2 | |||
.3E+2 28E+ | |||
.3E+2 22E+ | |||
534E+ | |||
Toa o | |||
and PGamma Number erormed' Anayses Cs Cs MnCo Fe C0 Gamma 8 znCs Cs Type o | |||
orUni MediumSpecVegea 36Ci/k we Broadea SpecCi/k we Fish | |||
of 0 0 0 O Number 2/2 Locaions | |||
#/oa LLDLLDLLD Range< < < < | |||
LLD o Conro Mean A A A A 34E+ | |||
.52E+ | |||
2020 NoRe O for 530 Mean 482E+ | |||
M 2/2 Summary | |||
#/oa Range o Annua Mean Program hes 403E+ | |||
324E+ | |||
Hi Monioring wih Direcion Locaion Name mies Parr 27 2, | |||
Disance Sie Reservoir, 26 Environmena Locaions | |||
#/oa RangeLLDLLDLLDLLD 482E+ | |||
2/4 Radioogica ndicaor A | |||
Mean A | |||
A A A o | |||
403E+ | |||
324E+ | |||
Cont. | |||
Limi 892E+0 672E+0 8 | |||
Deecion Lower Tabe o | |||
.08E+ | |||
Acua Max. N/AN/A 889E+0 | |||
.0E+ | |||
N/A.5E+2 ToaSpec o | |||
PGamma Number erormed' Anayses and MnseCo C0Cs 3Cs Type or o | |||
Uni Medium 6Ci/k Sedimen | |||
Table 8 (cont) RadiologicalEnvironmental Monitoring Program Summaryfor 2020 Footnotes | |||
: 1. Includesindicator andcontrol analyses. Site 8,Air Particulates andAir Radioiodines are included asindicators. Doesnotinclude other supplemental samples. | |||
: 2. Values given aremaximum MDAvalues for indicator locations calculated fromtheprogram data analyses. The maximum acceptable LLDvalues allowed fromNRCguidelinesare given inparentheses. | |||
: 3. Meanandrange arebasedon detectable measurements only. ofdetectable Thefractions measurements (i.e., | |||
number of positive results/total number of measurements)atspecific locations areindicated inparentheses. | |||
: 4. Anyconfirmed measured level ofradioactivity inanyenvironmental medium thatexceeds thereporting requirements ofODCM,Section 1.4.1.2. | |||
: 5. Detection sensitivity isapproximately 10mrem/yr (1.0 pR/hr). | |||
: 6. Elevated levels of214Pband214Bi wereobservedin Jenkinsville drinking watersamples. | |||
Thevalues arenotreported here because they arenaturally occurring (do notoriginate from VCSNS) andfurnish noquantifiable information ofinterest. | |||
: 7. Fish include 3 groups (Bass, Bream/Crappie, Catfish/Carp.) | |||
: 8. Elevated levels of214Pb and214Bi plus other 226Ra daughter plus products and 228Ac other 232Th daughter productswereobserved inall sediment samples.The values arenot reported here because they arenaturally occurring (do originatefrom VCSNS) and n ot furnish noquantifiable information ofinterest. | |||
: 9. Drinking water resin prepared andcounted for 131i asseparate sample. | |||
27 | |||
Number MeasuremensO 0 O 0 O O 0 0 0 0 0 Locaions53/55 58E2 LLD 56E3 4/66 LLD .6E+3 LLDLLDLLDLLD LLDLLD LLD LLD | |||
#/oa Range o o < o < | |||
305/305 o | |||
64 .2E+3 o < < < < < < < < | |||
Conro 79E3 A | |||
.2E2 42E3 A 97 67E+2 A A A A A A A A oNa Meanz .2E 28E2 32E3 Summary Re 0p O. 0p 52/52 55E 60E22/2252E3 25/ | |||
42 472/7 Mean#/oa 42/42 o.8E+3 0 | |||
Baseine Range o o o 6/6o 407/7 o | |||
Annua hes Mean .3E 30E2 2.E225E3 .4E+3 | |||
.2E2 38E3 3. 22 3. .6E+3 Preoperationa | |||
: 6. 35 6 Hi o E SE | |||
*D wih Dam, NNW S | |||
ENE Tower, NNE Dam, Direcion Res. NNWBarnabas mies, Coumbia mie Locaion Program & Norh mies, Disance 3, | |||
.5 Mon. | |||
224, 298,Rd Sie Me 0, | |||
mies, 24 29 Sie SieSieSie Noh 3, mies, S.287,247 55, Church, Sie Cana, 28 MonitoringRange Mean ndicaor 55E 66E2 456/462 562/564 LLD 52E3 22/24LLD95/95 54/54 47 47 8/29 24E+3 LLDLLDLLDLLDLLD LLD LLD LLD A | |||
Locaions | |||
#/oa | |||
.E o o 27E2 | |||
.3E2 32E3 A | |||
o < | |||
.5E3 A | |||
o 99 02 o | |||
67 .4E+3 68 o | |||
.E+3 A | |||
A A A | |||
A A | |||
A A | |||
Environmenta o | |||
Acua Radioogica 9 | |||
Limi 4.E3 Max. | |||
Deecioni Lower .0E2 30E3 3.E3 | |||
.0E2 70E2 36E2 05 N/A05N/A 20E+3 | |||
.E+3 .5E+ | |||
27E29E 30E+ | |||
.5E+ '.5E+ | |||
e.0E+0 24E 79E52E | |||
.5E+ | |||
30E+ .5E+ | |||
33E .5E+ | |||
30E TabeToaBea Spec307 220 Spec40 Perormed 6 | |||
and o | |||
Type Anayses Number 300 Gross Cs 0s 290 Gamma Monhy Gamma Gamma 43 H | |||
MnCoFe C0 Gamma esznzr NbCs Pahway TLD Waer and o | |||
Period Paricuae 982 or Uni Sampedorin MediumDirec Air Radioiodin Ci/m Air pCi/ | |||
Suace | |||
Number Measuremens 0 O O 0 0 0 O O 0 0 0 0 O O O O O | |||
.9E+3 Locaions | |||
#/oa, pa LLD LLD LLD | |||
< o LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD Mean .3E+3 Conro A A A | |||
.0E+3A A A A A A A A A A A oNam hn O 98E+2 Re Mean#/oa Range.6E+3 8/8 23E+3 3/7 Annua Mean 95E+2 o | |||
84E+2 o | |||
70E+2 3/3 hes Hi We wih LocaionDirecion | |||
& Onsie R Jenkinsv SE mies, Disance 26, She 26 28, 20 Sie 29 Means Range ndicaor LLD LLD LLD 6/6 23E+3 LLDLLDLLDLLDLLDLLDLLDLLD LLD 98E+2 LLDLLD 6/4 LLD LLD Locaions o < o < < | |||
#/oa .5E+3 A | |||
A A A 95E+2 A A A A A A A A A A A 78E+2A 68E+2 A | |||
o Acua Limi LowerMax. | |||
22E Deecion 22E+0 60E+ | |||
.8E+ | |||
55E OE+2 | |||
.5E+ | |||
9 37E+0 20E+3 38E+0 | |||
.5E+78E+0 | |||
.5E+38E+0 30E+8.E+0 | |||
.5E+ 46E+0 68E+0 | |||
.5E+ | |||
30E+ + | |||
.5E+ 38E+0 37E+0 | |||
.5E | |||
+ | |||
.8E 50EO 60E+ | |||
.9E+ .5E+ | |||
63E+2 .5E+ | |||
30E .5E+ | |||
27E 20 Toao NumberPerormed Anayses Cs BaLaon Spec32 Mn CoFe oCo zr Nb Cs Cs Ba on La Bea 4 | |||
Spec44 Mn Co Gamma zn and 982 Type 982 Gross H | |||
Gamma Pahway or o | |||
Uni and Samped Penod Waer orin Ground 82 9898 Wae Drinkin Medium 98 | |||
Number Measuremens O O O 0 O O 0 0 0 0 0 0 O O 0 0 Locaions | |||
#/oa Range LLD LLD 92E+034E 37/47 o LLD LLDLLD LLD6/3o Conro Means A A | |||
57E+0< < | |||
37E+0.3E+ | |||
A A A | |||
A .3E+ | |||
oNam O | |||
6.E+0 .6E+ | |||
Re Mean#/oa 8/47 5/29 Range o o No 4.E+0 O | |||
Annua hes Mean 28E+059E+ .6E+ | |||
Hi wih LocaionDirecion Dairy, 4,mies, Dairy, 4,mies, Disance Sie | |||
: 5. Sie | |||
'5. | |||
30 Range Mean 6.E+0 LLD .6E+ | |||
indicaor A | |||
LLD | |||
#/oa A | |||
LLD Locaions A | |||
LLD A | |||
LLD A | |||
LLD A | |||
LLD A | |||
LLD A | |||
LLD A | |||
LLD A | |||
LLD A | |||
LLD A | |||
LLD A | |||
8/47 o LLD 4.E+0 LLD 28E+0 50E+ | |||
A A A | |||
LLD A | |||
3/5 o | |||
.6E+ | |||
o Acua Limi Lower 96EO Max. | |||
Deecion .5E+' | |||
30E+ | |||
34E 26E 30E+ | |||
48E34E .0E+0 | |||
.5E+ | |||
.5E+74E .0E+ | |||
22E24E25EO 60E+ | |||
.8E+ | |||
44E.5E+63E 33E+0 46EO | |||
.0E+0 | |||
.5E+ + | |||
.E+ .5E+ | |||
44E+0 | |||
.5E 60E+ | |||
67E+ 33E+ | |||
27E+ | |||
80E+ | |||
ToaFe Co2n o | |||
Number and Perormed Anayses eszr NbCs CSBa La oni Gamma 982 3 Cs Cs Ba La 82 Cs Cs Gamma Type Pahway or o | |||
Uni and Samped Period orin SpecpC 94989 Mik Spe we pCi/kg Medium Grass | |||
Number Measuremens 0 0 0 0 O 0 O 0 O O 0 O Locaions | |||
#/oa Range LLD LLDLLD LLD 79E+ | |||
9/2LLDLLDLLD LLD LLD LLD 6/6 Conro Mean A | |||
A A | |||
o < | |||
3.E+ | |||
.0E+ | |||
A A | |||
A A A A 42E+ | |||
o | |||
.8E+ | |||
oNam A | |||
.0 O | |||
45E+ | |||
Re Mean | |||
#/oaRange Vaue | |||
/ | |||
.0E+2 7/23 6/6 o | |||
26E+ | |||
o No e | |||
O8 Mean 36E+ | |||
Annua Sin 34E+ | |||
.2E+ 26E+ | |||
hes Hi Line, Direcion N | |||
wih Parr Locaion & | |||
S Trans. | |||
mies, Recreaion mies, 55 2, SS Reserv mies, Disance 2,.2 Sie 24, Sie Lake, Sie 3 | |||
Range Mean 36E+ .0E+2 2/8 45E+2 ndicaor Locaions LLD LLD | |||
#/oa 3.E+ | |||
2/7 o LLD LLDLLD 50/7 LLD o < LLD LLD LLDLLD LLD | |||
< o A | |||
A A | |||
'.8E+ 28E+ | |||
A A A | |||
.E+ | |||
A A A A A A | |||
.7E+2 26E+ | |||
o Acua Limi Deecion Lower 60E+ | |||
.9E+ | |||
Max.37E+ 80E+ | |||
2.E+ 84E+0 80E+ | |||
.0E+ | |||
80E+ .3E+2 | |||
.4E+ | |||
.8E+ .3E+2 26E+ .3E+2 | |||
.8E+ 26E+2 90E+ | |||
4.E+ .3E+2 26E+2 | |||
.8E+ .5E+2 23E+ .5E+2 24E+ | |||
Toao Number Perormed andSpecCSCS Anayses Cs CS 92Cs Cs C0MnFe Gamma GammaGamma ezn oCoSpec CSCs Type Pahway or o | |||
Uni and Samped Medium 0Vegeaion Gamma Penod we980982 Broadea orin SpecpCi/ | |||
3298098 Vegeaion we OherFish Spec98 we pCi/kg 249 pCi/kg Sedim | |||
Table 9 (Cont.)- Radiological Environmental Monitoring Program Preoperational (Baseline) Summary Footnotes | |||
: 1. Values given areMDA values calculatedfrom theprogram data analyses withmaximum acceptable LLDvalues allowed fromNRCguidelines given inparentheses. | |||
: 2. Meanandrange arebased on detectable measurements only. Thefractions ofdetectable measurements atspecific locations areindicatedinparentheses. | |||
: 3. A non-routine measurement isany confirmed measured level ofradioactivity inan environmental medium that exceedsthe reporting requirements of VCSNSODCM,Section 1.4.1.2. | |||
: 4. Thebaseline valuesarehigh because ofthe fallout from theChinese bombtest in1980. | |||
Thefirst setofdata reflects the1981baseline. The second setofdata reflectsthe1982 baseline,essentially free ofbombtest fallout. The 1982 data covers theperiod 1/1/82 10/22/82. | |||
: 5. Detection isapproximately sensitivity 5 mrem/yr (0.5 pR/hr) determined from theanalyses offiveyears ofpreoperational data. | |||
: 6. No control locationwasspecified fordrinking water during thepreoperational monitoring period. | |||
: 7. Inconclusive data. | |||
32 | |||
Table 10 Results of2020Environmental Inter-Comparison Program with Independent Lab, & ziegler Eckert Analytics, Inc. | |||
Comparison Study Date Nuclides Vendor Lab EnvLab Agreement Measurement Unit Results Results Gamma IsotopicLiquid 3/16 131I 92.9 91.9 Yes 1Liter 141Ce 190 199 Yes (pCi/I) 51Cr 388 383 Yes 134Cs 154 145 Yes 137Cs 185 195 Yes 58Co 196 222 Yes 54Mn 216 242 Yes 59Fe 168 191 Yes 65zn 261 281 Yes 60C0 236 245 Yes GammaComposite Filter11/6 141Ce 103 97.7 Yes (pCi) 51Cr 256 312 Yes 134Cs 138 118 Yes 137Cs 172 185 Yes 58Co 124 120 Yes 54Mn 124 146 Yes 59Fe 138 167 Yes 65zn 186 201 Yes 6oCo 261 260 Yes Alpha/Beta Water 4/20 Alpha 103 117 Yes (pCi/l) Beta 281 289 Yes Gammaisotopic 3/24 141Ce 264 254 Yes Pulverized 51Cr 540 555 Yes Soil 134Cs 215 195 Yes (pCi/kg) 137Cs 258 281 Yes 58Co 272 277 Yes 54Mn 301 330 Yes 59Fe 234 267 Yes 65zn 363 419 Yes 60C0 328 350 Yes I-131 Solid 3/16 1311 90.9 97.2 Yes (pCi) 33 | |||
Comparison Study Date NuclidesVendorLab EnvLab Agreement Measurement Unit Results Results Tritium 4/9 3H 9870 10400 Yes (pCi/I) | |||
Gross Beta Filter 9/21 241Am 86 82 Yes (pCi) 137Cs 165 162 Charcoal Cartridge 9/15 1311 78.5 85.4 Yes (pCi) | |||
GammaIsotopic Liquid 9/16 131I 98.2 108 Yes 4 Liter 141Ce 151 173 Yes (pCi/l) 51Cr 373 421 Yes 134Cs 201 206 Yes 137Cs 251 278 Yes 58Co 180 196 Yes 54Mn 181 201 Yes 59Fe 201 234 Yes 65zn 271 320 Yes 6oCo 380 420 Yes 34 | |||
Table 11 2020Environmental Sampling Deviations Program Sample Month Media Location WeekNo. Causefor Deviation TLD Site 47 Oct(44) Damaged TLD Site 17 Jan(01) Missing 35 | |||
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Latest revision as of 15:07, 19 January 2022
ML21118B065 | |
Person / Time | |
---|---|
Site: | Summer |
Issue date: | 04/27/2021 |
From: | Haselden R Dominion Energy South Carolina |
To: | Document Control Desk, Office of Nuclear Reactor Regulation |
References | |
21-161 | |
Download: ML21118B065 (46) | |
Text
-- p V.C.
Bradham SummerNuclear Blvd Station
& Hwy 215,Jenkinsville SC 29065
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Mailing Address: C P.O. Box 88,Jenkinsville, SC 29065 i -
DominionEnergy.com 27,2021 April ATTN: Document Control Desk Serial No.21-161 U.S.Nuclear RegulatoryCommission LIC/TS/RO Washington, D.C.20555-001 Docket No.50-395 License No.NPF-12 VIRGIL C.SUMMER NUCLEAR STATION UNIT1 DOCKET NO.50-395 OPERATING LICENSE NO.NPF-12 ANNUALRADIOLOGICAL ENVIRONMENTAL OPERATING REPORT Enclosed istheDESCAnnual RadiologicalEnvironmental Operating Report asrequired by Section 6.9.1.6 oftheVirgil C.SummerNuclear Station Technical Specifications.
there If areanyquestions, please callMs.Tracey Stewart at (803) 931-5663.
Sincerely,
/
Robin R.Haselden Director, Nuclear Station Safety andLicensing V.C.Summer Nuclear Station Commitments contained inthis letter:None Enclosure cc: w/oEnclosure unless noted G.J.Lindamood -
Santee Cooper L.Dudes NRCRegion II (w/Enclosure)
V.Thomas NRCProject -
Manager NRCResident Inspector (w/Enclosure)
ANI(w/Enclosure)
AnuNair-Gimmi -
SCDHEC (w/Enclosure)
Dominion Energy*
ANNUAL RADIOLOGICAL ENVIRONMENTALOPERATING REPORT VIRGIL C.SUMMER NUCLEARSTATION FOR THE OPERATING PERIOD JANUARY 1,2020 DECEMBER31,2020 i
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Preparedby:
/ Brett Specialist Williams, Health Physics Reviewed by: A roved by:
Casey Carlson, Supervisor ToddEllison,
!tManager HealthPhysics Radiological andChemistry Protection
EXECUTIVE
SUMMARY
This Annual Radiological Environmental Operating Reportdescribes theV.C. Summer Environmental Monitoring Program andtheprogram results thecalendar for year 2020.
Included are the identification ofsample locations, descriptions ofenvironmental sampling andtype of analysis. Comparisons ofpresent environmental radioactivity levels and preoperational environmental data, landusecensus evaluation, dosescalculated from environmental measurements, anda summaryofenvironmental radiological sampling results arepresented. Quality assurance practices, sampling deviations andunavailable samples are also discussed.
Sampling activities wereconducted as prescribed bytheOffsite DoseCalculation Manual (ODCM) for V.C. SummerNuclear Station (VCSNS) andapplicable Health Physics Procedures. Required analyses wereperformed anddetectionlimits metfor required samples with deviations noted. Samples werecollected comprising onethousand twohundred eighty-twoanalyses (1,282) performed tocompilethe data forthe2020Environmental Report.
Supplemental samples comprising twohundred ninety-five (295)analyses wereperformed on somemedia additional for information. Basedonthe results from theannual land usecensus, the current number ofsampling sites for V.C.SummerNuclear Stationissufficient.
Radionuclides observed intheenvironment in2020from V.C. Summer effluent releases werewithin therange ofconcentrations observed inthepast. Radiation dosecalculated from sample results isless than observed withnormal fluctuationin natural background. Itis therefore concluded that VCSNSoperations haveno significant radiological impact on the health andsafety ofthepublic orthe environment.
i
TABLEOF CONTENTS PAGE INTRODUCTION 1 DESCRIPTIONOFTHE RADIOLOGICAL PROGRAM2 ENVIRONMENTALMONITORING LANDUSECENSUS 4 MONITORING RESULTSANDDISCUSSION 4 CONCLUSION 7 ii
LISTOFTABLES TABLE PAGE 1 Monitoring Methods for Critical Radiation Exposure 3 Pathways 2 2020Fission andActivated Corrosion Product Activity in 6 Sediment 3 Required Sampling Site Locations 8 4 Results ofthe2020Land UseCensus Verification 11 5 Critical Receptor Evaluation for 2020 12 6 Radiological Environmental Monitoring Program 13 Specifications 7 Supplemental Radiological Environmental Monitoring 18 8 Radiological Environmental Monitoring Program Summary 22 for 2020 9 Radiological Environmental Monitoring Program 28 Preoperational (Baseline) Summary 10 Results of2020Environmental Inter-Comparison Program 33 with Independent Lab, Eckert & ziegler Analytics, Inc.
11 2020Environmental Sampling Program Deviations 35 iii
LISTOFFIGURES FIGURE 1-1 Control Site Locations (50 mile radius around the Virgil C. Summer Nuclear Station) 1-2 Radiological Monitoring Program Local IndicatorSample Sites (5mile radius aroundVirgil C.SummerNuclear Station) 1-3 Radiological Monitoring Program Local IndicatorSample Sites (1 mile radius around Virgil C. Summer N uclear Station) 1-4 Radiological Monitoring Program Security AreaGround Water Sites.
1-5 Radiological Monitoring Program Protected AreaGround Water Sites andIndependent Spent Fuel Storage Installation (ISFSI).
iv
INTRODUCTION VirgilC.Summer Nuclear Station (VCSNS) utilizes a pressurized water reactor rated at2900 MWt (990 MWegross). Thestation islocated adjacent totheMonticello Reservoir nearJenkinsville, South Carolina andapproximately 26miles northwest ofColumbia.
VCSNS achieved initial onOctober criticality 22,1982, reached 50%power December 12, 1982 and100% power June 1983following 10, steamgenerator feed water modifications.
Steam generators were replaced inthefall of1994. During theninth refuel theplant was uprated to2900 MWt (990MWegross). VCSNSiscurrently operating inthe26th fuelcycle.
VCSNSisoperating inconjunction with theadjacent Fairfield PumpStorage Facility (FPSF) which consistsof eight reversible pump-turbine units of60 MWecapacity each.
During periods ofoff-peakpower demand, baseload generating capacity isused topump water from Parr Reservoir toMonticello Reservoir. Monticello Reservoir hasa surface area ofapproximately 6800acres and lies about 150 feet above Parr Reservoir whosefull pool area isapproximately 4400acres.The pump-turbine units operate inthegenerating mode tomeetpeak system loads while Monticello Reservoir also provides condenser cooling water forVCSNS. Cooling water intakeand discharge strt)ctures areseparated byajetty to ensure adequate circulationwithin thereservoir.
VCSNSislocated inFairfield County which, along with Newberry County, makesup theprinciple area within a 10mile r adius of the plant. This area ismainly with forest only about 30%devoted tosmall farming activities principally producing small grains, feed crops andbeef cattle. Significantportions ofLexington andRichland Counties areencompassed withinthe20mile radiusoftheplant andexhibit similar agricultural activities. Columbia, the statecapital, istheonly large citywithin the50mile radius of the plant. Small agricultural concerns arepredominant, but makeupless than 50%oftheland area. Themain industrial activity isconcentrated around Columbia andisgenerally greater than 20miles from the VCSNS.
Liquid effluents from VCSNSarereleased into theMonticello/Parr Reservoirs attwo discharge points: the Circulating Water Discharge Canal (CWDC) and the FPSF Penstocks.
Non-nuclear drains arereleased totheCWDC.Effluent from theliquid wasteprocessing system andprocessed steamgenerator blowdownarereleased through thepenstocks.
Radioactive gaseous effluentsfrom V CSNS are released from t wo points: theMainPlant Vent andtheReactor Building Purge Exhaust, all considered ground level releases.
In2012construction beganon theIndependent Spent Fuel Storage Installation (ISFSI),andconcluded inJanuary 2016. Thefirst dry cask storage campaign began March 26,2016andfinished inthefirst weekofMay2016. Four casks wereloaded during this evolution.A second campaign during thesecond quarter of2019loaded four additional casks totheISFSI for a totalofeight casks.
Radioactive liquidandgaseous releases from the facility andtheir potential influence onthe surrounding biotaandmanaretheprimary concern ofthe Radiological Environmental Monitoring Program atVCSNS.This report summarizes theresults oftheRadiological Environmental Monitoring Program conducted during 2020. Datatrends, control/indicato andpreoperational/operational data, inter-comparisons, andother data interpretations are presented.
1
DESCRIPTION OFTHERADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM The Radiological Environmental Monitoring Program iscarried outinits entirety by Dominion Energy South Carolina. Theprogram hasbeendesigned tomeetthefollowing general commitments:
1 To analyze selectedsamples inimportant anticipated pathways forthe qualification andquantification ofradionuclides released totheenvironment surrounding VCSNS.
- 2. To establishcorrelations between levels ofenvironmental radioactivityand radioactive effluents from VCSNSoperation.
Theprogram utilizes theconcepts ofcontrol/indicator andpreoperational /operational inter-comparisons inorder toevaluate the adequacy ofradioactivity source control andto realisticallyverify theassessment ofenvironmental radioactivity levels andsubsequent radiation dose toman.
Sample media andanalysis sensitivityrequirements havebeenestablished toensure thatthemaximum dosepathways aremonitored and sensitivities represent a small fraction ofannual release limits. Theserequired Lower Limitsof Detection (LLD's) areverified to have beenmetbycalculating Minimum Detectable Activity (MDA) for eachsample based onactual counting parameters relevant toeachsample. Inall cases theachievedMDAwas lower than the LLD. Effluent dispersion characteristics, demography, hydrology andland use have been considered inselection ofenvironmental sampling locations. These criteria were usedtoestablish boththepreoperational and operational phases of theRadiological Environmental Monitoring Program. Elements oftheprogram monitor the impact ofboth gaseous andliquid effluents released from VCSNS.
Specific methods used inmonitoring thepathways ofthese effluents which may lead toradiation exposure ofthepublic, based onexisting demography, aresummarized below inTable 1.Requirements oftheRadiological Environmental Monitoring Program are specified intheVCSNSOffsite DoseCalculation Manual (ODCM).
2
Table 1 Monitoring Methods forCritical Radiation Exposure Pathways Effluent Release Exposure Pathway Monitoring Media T e Gaseous Immersion Doseand Thermoluminescent Dosimetry other External Dose (TLD) Area M onitoring,Air Sampling, Vegetation(Ingestion) Vegetation andFoodCrop Sampling, Milk (Ingestion) Milk Sampling, Grass (Forage)
Sampling Liquid Fish (Ingestion) Fish Sampling, Water & Shoreline Surface Water Sampling, Ground Exposure (Ingestion and Water Sampling, Shoreline and Immersion) Bottom Sediment Sampling, Drinking Water Drinking Water Sampling Inestion Monitoring sites indicative ofplant operating conditions aregenerally located within a 5 mile radius oftheplant. Table 6 provides a list of ODCM required sampling locations.
Table 7 provides ofsupplemental a list samplinglocations. Mapsshowing radiological environmental sampling locations within a radius ofapproximately 5 miles from VCSNSare presented asFigures 1-2through 1-5. Figure 1-1 shows monitoring atdistances sites greater than 10miles from theplant. Background radiation levels vary across the monitoredarea of interest.
Inaddition topreoperational/operational datainter-comparisons, control/indicator data inter-comparisons areutilized. This isdonetoassess theprobability that anyobserved abnormal measurement ofradioactivity concentration isdueto random or regional fluctuations ratherthantoatrue increase in localenvironmental radioactivityconcentration.
Environmental datais gathered through multiple typesof sampling and measurements atspecific locations. Several multiple sampling combinations arein use around theVCSNS.Forexample, all airsampling locations serveas environmental dosimetry monitoring locations. Atthese locations, airborne plant effluents aremonitored for gammaimmersion dose (noble gases), in addition to aircontaminants. Monitoring locations Site 6 (1.0 mile ESE) andSite 7 (1.0 mile E)havebroadleaf vegetation gardens for monitoring gaseous effluent deposition (ingestion pathway) inthetwosectors having the highest deposition coefficients(D/Q) with real potential forexposure. Monitoring location Site 18(16.5 miles S)serves asa control location for d irectradiation andSite 40 (11.9 miles SSE) serves asa control location for garden monitoring.
Liquid effluentsaremonitored using three different monitoring media (fish, bottom sediment andsurface water) at the twomost probable affected bodiesofwater a round the plant: Site Parr 21, Reservoir (2.7 miles SSW) andSite Monticello 23, Reservoir (0.5 miles ESE). The control location for l iquideffluent comparisons is at Site22,Neal Shoals (26.0 miles NNW) onthe Broad River.
3
Quality ofanalytical measurements isdemonstrated byparticipation ina laboratory inter-comparison program. Results oftheinter-comparison program with anoutside vendor and VCSNS Count Roomweresatisfactory in2020andaresummarized inTable 10.The results of each ofthese quality control checks oftheRadiological Environmental Monitoring Program verify the technical credibility ofanalytical data generated andreported bythe program.
LANDUSECENSUS Annually a land use census isperformed within a 5 mile radius ofVCSNStoverify the appropriate sitingof sample locations. In addition, thelocation ofthemaximum exposed individual (MEI) isidentified toensure theappropriate location isused for calculation of offsite doseimpact from Summer Station gaseous effluents. Theresults oftheland use census performed in2020are included inTable 4.A verification ofthemaximum exposed individual location ispresentedin Table 5.Identification ofthe highest offsite doselocations wasperformed bycalculating a hypothetical dose based onsource term from theOperating License Environmental Report and2020 meteorological data. Exposure pathways modeled inthe analysis werethose identifiedduring the land usecensus.
Thelocation andpathway presentlyused intheODCMfor offsite organ dose calculations (E 1,1 miles -
residence/garden) was found to have t heh ighest calculated dose.
Inaddition, theODCMrequired environmental gardens (ESE 1.0 andE 1.0miles) were found tohave calculated doses higher than anyreal receptor. Therewerenomilking animals ordairy activity found within 5 kilometers ofVCSNS.Therefore, changestotheODCM gaseous effluent calculations orgarden sample locations are not indicated.
MONITORING RESULTS ANDDISCUSSION Theresults oftheRadiological Environmental Monitoring Program for2020are summarized inTable 8.Forcomparison, preoperational data aresummarized inTable 9.
The Radiological Environmental Programattained a program compliance rateof approximately 99.8%. A listing ofprogram deviations andtheir respectivecauses are included inTable 11. Analysis oftheimpact ofthese omissions verified that program quality hasnot been affected.
Corbicula harvest forpossible humanconsumption wasobserved inLake Monticello in2005. Since that time Corbicula analysis hasbeenincorporated intheSupplemental Sampling Program. Samples werecollected andanalyzed forgammaemitting isotopes. No gammaemitting nuclides weredetected.
Gross betaactivities measured inairparticulate samples collected atindicator locations around VCSNSwereconsistent with preoperational levels andnotstatisticall significant from control locations. Thehighest site-specific meanactivity (2.13E-2 pCi/m3) wasmeasured atindicator location Site 30(Construction SiteGate0.5miles SSW). The results indicate that theoperation ofVCSNShasnot contributed todetectable increases of airborne gross beta activity inthe environment.
Gammaspectroscopy measurements ofcomposited air particulate samples and activated charcoal cartridges support the gross beta activity trend. Only natural background 4
activities weredetected. Thehighest MDAvalues atindicator locationsfor 13403, 137Cs and 131IWere 2.02E-3, 2.10E-3 and1.72E-2 pCi/m3, respectively andall metprogram analytical requirements fordetection capability. Airsample collection rate forindicator/control air sam'ples was100%.
Environmental dosimetry measurements did not differ significantly from preoperational measurements. Indicator andcontrol dosimetry measurements also showed noappreciable differences. Comparison with other operational years showsnostatisticall significant difference. Monitoring location Site 55(St. Barnabas Church 2.8miles E)wasthe indicator locationshowing the highest meanexposure rate of1.05E+1 pR/hr. This value is consistent with thehighest meanexposure rate of1.40E+1 pR/hr measured during the preoperational period.in April of2015six TLD sites wereaddedtotheEnvironmental Dosimetry program. These added TLD'swereplaced around theboundary ofthe Independent Spent Fuel S torage Installation (ISFSI) which b egan c ask s torage on March 26,2016. Todate there hasbeen no statistically significant increase indoserate above background fromDryCaskStorage activities. TLD samplecollection rateforall indicator/control was98.5%.
Gammaspectroscopy measurements ofsurface water samples didnotindicate the presence ofactivated corrosion orfission products above the respective MDAfor indicator sites. Tritium analysis did notindicate thepresence oftritium above therespective MDAfor indicator sites. Sample collection rate for all indicator/control surface water samples was 100%.
Gammaspectroscopy measurements oftheODCM required ground water samples did notindicate thepresence ofactivated corrosion orfissionproducts above therespective MDAs.Tritium wasdetected within thesite boundary atSite 123 (NPDES Well GW-160.34 miles SSE), infour quarterly samples atconcentrations of2.80E+3 pCi/L, 2.28E+3 pCi/L, 1.92E+3 pCi/L, and1.93E+3 pCi/L. GW-16isa shallow supplemental monitoring site used tomonitor for chemical contaminants around theIndustrial andSanitary Waste Treatment System. If this ground water represented a credible exposure pathway, maximum dose projection assuming consumption of730liters per year would result ina dose that does not exceed 0.25 mrem. These levels aresubstantially less than the 2.00E+4 pCi/L drinking water standard. Sample collection rate for indicator/control ground water samples was100%.
Gammaspectroscopy measurements ofdrinking water samples collected fromSite 28(Jenkinsville water supply) andSite 17(Columbia Water Works 25.0 miles SE) didnot indicate thepresence ofactivated corrosion orfission product above activity therespective MDAs.Tritium wasdetected aboveMDAin1 sample taken atSite 17(Columbia Water Works 25.0 miles SE) ata concentration of9.35E+2 pCi/L. This concentration well is below thedrinking water standard of2.0E+4 pCi/L. If an individual consumed drinking water ata concentration pCi/L the of 9.35E+2 for entire year, assuming a totalconsumption of 730 Liters, theresulting dose would havebeenless than 0.1mrem.Sample collection rate for indicator/control drinking water samples was100%.
There wereno milk samples collected in2020. Milksampling isrequired tobe performed atthethree highest doselocations within 5kilometers oftheplant orat5 to8 kilometers oftheplant, if doses arecalculated tobegreater than 1 mrem/year. Presently there areno locations meeting this criteria forindicator dairies. Theclosest dairy is approximately 7 kilometers from (see theplant Table 5
4). Milk samples will be obtained from
this dairy if gaseous releases from theplant exceed 5% ofquarterly organ doselimits or radionuclides (attributed to the operation ofVCSNS) are detected in broadleaf vegetation, grass orair samples atconcentrations greater than required LLDs.
Gamma spectroscopy measurement ofsupplemental grass samples collected indicated 137CS in5 of12 samples atSite 2 (transmission line 1.2miles SW)at concentrations ranging from1.76E+1 pCi/kg to 8.04E+1 pCi/kg. The maximum preoperational control a.ctivity was 3.40E+2 pCi/kg. Samplecollection ratefor indicator/control supplemental grass was100%.
Gammaspectroscopy measurements wereperformed onsupplemental grass and soil samples collected in response toa liquid effluent spill in2011atSite 25(Fairfield Pump Storage Remediation Area 0.9 miles WNW). Noneofthegrass andsoil samples collected indicated the presence ofactivated corrosion orfission products above the respective MDAs.
Gammaspectroscopy measurements ofthebroadleaf samples collected didnot indicate the presence ofactivated corrosion orfissionproducts above therespective MDAs.
AII oftherequired indicator/control broadleaf samples werecollected.
Gamma spectro.scopy measurements of all non-leafy (other vegetation) supplemental samples collected didnotindicate thepresenceof activated corrosion orfission products above therespective MDA.
Gammaspectroscopy measurements offish samples collected indicated 13703 jn1 of6 samples taken atSite 21(Parr Res.2.7miles SSW)at a concentration of1.19E+1 pCi/kg. All oftherequired indicator/control fishsamples werecollected.
Gammaspectroscopy measurements ofsediment samples detected 137CS in2 of2 indicator samples taken atSite 137CSWaS alSO 21(Parr Res. 2.7miles SSW) atconcentrations of4.82E+1 and3.24E+1 pCi/kg. detected in2 of2 control samples taken atSite 22 (Neal Shoals 26miles NNW) atconcentrations of1.52E+1 pCi/kg and5.30E+1 pCi/kg.
Historically 137CS leVels atthecontrol site haveranged from 1.8E+1 pCi/kg to1.0E+3 pCi/kg.
Thelevel of137CS ObSerVed atSite 21 (Parr Res.2.7miles SSW) isconsistent with background conditions intheenvironment. However, ifthe137CS WaS attributed toSummer Station the dose would be0.004 mrem/year. AII required indicator/control sediment samples werecollected.
Table 2 2020Fission andActivated Corrosion Product Activity inSediment Corresponding Location RadionuclideActivity (pCi/kg)Calculated Annual Dose E uivalent mrem/r Total Bod p, Maximum Mean Maximum Mean Reservoir 137Cs 4.82E+1 4.03E+1 4.05E-3 3.39E-3 6
CONCLUSION As inprevious years ofVCSNSoperation, thepresence offission product activity attributed toresidual fallout fromatmospheric weapons andtheChernobyl testing accident were detectedin environmental media including sedimentandgrass.
No detectable fissionactivation or product activity toVCSNS attributed operations was observed inenvironmental media with theexceptionof:
- Tritium in supplemental ground water samples takenatSite 123(NPDES Well GW-160.34 miles SSE) within thenuclear owner station, c ontrolled area.
a Tritium ina drinking water sample taken atSite 17(Columbia WaterWorks25 miles SE).
Theaverage natural background for direct exposure asdetermined fromcontrol locations is68.9 mrem/year. Thehypothetical calculated maximum exposure fordrinking water andsediment exposure iswell within the normal fluctuationsofnaturalterrestrial and cosmic background. This dose would notbeexpected toresult inobservable onthe effect ecosystem orgeneral public. Theresults oftheRadiological Environmental Monitoring Program, therefore, substantiate thecontinuing adequacy ofsource controlatVCSNSand conformance ofstation operation to10CFR50,Appendix Idesign objectives.
7
Table 3 Required Site Sampling Locations MiEEEEiEEMM MiEMEM EEEEEEEEEM EiEEM MEEEEEMEEEEEEiEEEE EiEM EEiiBEEEMEM EMEHME EEEEEEEiMEM EIMEEEEM EIEEiEEEEEE EEEiH EEEEEEIM EEEIEEEM EEEMEEEEMM EIEREMEEM EEEEEEEEEMEEM EEEEEEEEMEEM EEEEIEEIEEMEM EEEEEEEEEEM EEEiEEEEEM EERMEEiBMEEEMEEM EEEMEEEMEiiMEM EEEEEEEEEMM EEEMEEEEEEEEEM EEEMEAEEEEEEEEEMEM EEEEEEEMEEM EENIEEEEEIEEEliEEEEliBMMEHEEEMEM EEEEHiEEEMEM EEEEHEEEMEEM EIEiEEEMEEM EIEEEEEEMEM EEEEEEEEEMEEM ii i
ii ii ii i
8
3 (cont)
Table -
Sampling Required Site Locations EEEMEEEiMEM EEEEEEEEMM EEEMiBEMM EEEEEEEEEM EEEEEEEEMM EEEEEiEEEEM EEEMEEEMEM EEEMEEEEM EEEMEEHMEEEEEEM EEEMEEEEEEEEEM EEEEEEEEMM EEE EEEEEEEEE IIIIliliE EEEE AWEl!EM lilEliE
!I1111E EilililiBIM EAEBEIE AEIilillMMEEil!M 9
Table 3 (cont)
Required Sampling Site Locations Footnotes
- 1. Distance given isthedistance between thesite location andtheVCSNSreactor containment building.
- 2. Direction given indegrees fromtrue north-south line through centerofreactor containment building.
- 3. Sample Types:
AP= Air Particulate GW= Ground Water GA= Garden RI= Air Radiolodine DW= Drinking Water FH= Fish DQ Quarterly
= TLD MK Milk
= BS= Bottom Sediment SW= Surface Water GR = Grass (Forage)
- 4. Sites 14and16arenotpresently in use. If conditionschange, requiring a renewal of dairy sampling these sites willbereactivated.
- 5. Site 30consists oftwolocations inthesame sector. Theair samplerislocated 0.5 miles from thereactor tosupport construction ofa newfacility. TheTLDislocated 1.0 mile from thereactor inthesamesector.
- 6. Site 40(11.9 miles SSE)serves asa control location for garden monitoring which is the location of the Station's Emergency Operating Facility.
10
MLES MLKED No.
NEAREST GOAT MLES 49 482 Verification LKE No. O Census Use CATTLE NEAREST Couns Dairy ShireyGraham LandLE 46 2020 the of GARDEN NEAREST Wiedemann Randy Resuts 4
MLES 373296
.5 .53
.8.04
.44354 239 284 302 B
259 249 325 286 386 Tabe Cae Residen Garden Beef NEAREST RESDENCE Guinyard Crumbin Oiver Marin Gregg Gregory Thonas Roy are Meadory Mann Whie Lee Bessie Ronnie Carrie Mary Rd Rd Wadrop Workman Windmi Carer Bouw Mann Peak Wiiam 243Louise Hope Key Meyer C
Coses March Frank Goa Coses Coses Coses n n n n P. C Change Change Chang Chang SECTOR N
NNE NEENE E
SSE ESE SE S WSW SSWNW SWW WNW NNW A B C D
Table 5 Critical Receptor Evaluationfor 2020 NAME SECTOR MILES PATHWAY X/Q D/Q DOSE*
mReml P.Oliver N 3.73 Res 1.98E-07 5.86E-10 7.38E-03 T.Crumblin NNE 2.96 Res 3.93E-07 1.31E-09 1.47E-02 G.Guinard, Jr. NE 1.5 Res 2.09E-06 7.37E-09 7.86E-02 B.Gre ENE 1.53 Res 1.80E-06 6.31E-09 6.78E-02 Garden 7 ** E 1 Res,Gar 3.70E-06 1.50E-08 3.97E+00 R.Meado1 E 1.18 Res 2.48E-06 9.80E-09 9.37E-02 Garden 6 ** ESE 1 Res,Gar 2.08E-06 7.85E-09 2.10E+00 C.L Martin ESE 1.04 Res 1.89E-06 7.09E-09 7.12E-02 M.White SE 1.44 Res 6.16E-07 3.17E-09 2.37E-02 R.Mann SSE 2.39 Res 1.02E-07 7.27E-10 4.04E-03 K.Boulware S 3.54 Res 4.73E-08 4.45E-10 1.92E-03 S.Counts S 4.9 Res, B 2.43E-08 2.16E-10 2.24E-02 H.Carter SSW 3.02 Res 7.23E-08 9.30E-10 3.06E-03 W.Waldro SW 2.84 Res 8.86E-08 1.22E-09 3.79E-03 243PeakRd WSW 3.25 Res 6.67E-08 6.56E-10 2.72E-03 Ma erWindmill Rd W 2.49 Res 1.38E-07 8.96E-10 5.41E-03 Graham Dai*** W ***
Res,C/M *** ***
1.79E-01 CCMann WNW 259 Res 8.46E-08 3.86E-10 3.23E-03 R.Wiedemann WNW 4.16 Res,Gar 3.12E-08 1.31E-10 3.47E-02 L Workman NW 3.86 Res 8.10E-08 2.99E-10 3.05E-03 F.March NNW 2.86 Res 2.95E-07 9.34E-10 1.10E-02 ODCMOr anDose E 1.1 Res,Gar 2.93E-06 1.17E-08 3.11E+00 Pathway Res= Residence B = Beef G = Goat Gar Garden
= C/M Cow/Milk(Infant)G/M= Cow/Milk(infant)
=
Footnotes:
' Maximum exposed individual.
Hypothetical onOperating dosebased LicenseEnvironmental Report Source Term.
ODCMrequired environmental gardens.
Doses summed togive total for receptor.
Resident doseat5.14 milesandCow/Milk doseat4.82 miles.
12
Table 6 Radiological Environmental Monitoring ProgramSpecifications Exposure Pathway and/or Criteria forSelection of Sampling andCollection Sample Type& Frequency of Sample Number& Location Frequency Location Analysis AIRBORNE:
I.Particulate A)3 Indicator samples from Continuous sampler operation 2 Gross beta followingfilter locations close tothe site with weekly collection. 7 change; Quarterly boundary, indifferent 30 composite (by location) sectors, ofthe highest for gammaisotopic.
calculated annual average ground level D/Q ordose.2 B)1 Indicator sample tobe Continuous sampler operation 6 Gross beta followingfilter taken closeto the site with weekly collection. change; Quarterly boundary inthe sector composite (by location) corresponding tothe for gammaisotopic.
residence having the highest anticipated offsite ground levelconcentration ordose.2 C)1Indicator sample tobe Continuous sampler operation N/A Gross beta followingfilter taken atthe location ofone with weekly collection. change; Quarterly ofthe dairiesbeing composite (by location) sampled meeting the for gammaisotopic.
criteria ofVII(A).24 D)1Control sample tobe Continuous sampleroperation 17 Gross beta followingfilter taken atalocation atleastwith weekly collection. change; Quarterly 10air milesfrom the site composite (by location) andnotin the most for gammaisotopic.
prevalent wind directions.2 RadiolodineA)3 Indicator II. samples tobe Continuous sampler operation 2 GammaIsotopic for taken attwolocations as with weekly canister collection.7 lodine 131weekly.
given inI(A)above. 30 B)1Indicator sample tobe Continuous sampler operation 6 Gamma Isotopic for taken atthe location as with weekly canister collection. lodine 131 weekly.
given inI(B)above.
C)1Indicator sample tobe Continuous sampler operation N/A Gamma Isotopic for taken atthe location as with weekly canister collection. lodine 131weekly.
given inI(C)above.
D)1Control sample tobe Continuous sampler operation 17 Gamma Isotopic for taken ata location similarwith weekly canister collection. lodine 131weekly.
innature tol(D) above.
13
Exposure Pathway Criteria and/or Sample for Selection of Sampling andCollection Sample Type& Frequency of Number& Location Frequency Location Analysis lil.
Direct A)13Indicator stations to Monthly orquarterly Gammadosemonthly 1,2,3,4,5,6, or form andinner ring of exchange5J twoormore 7,8,9,10,29, quarterly.
stations inthe13 dosimeters ateach location 30,47 accessible sectors within 1 to2 miles oftheplant.
B)16 indicator stations toform Monthly orquarterly Gammadosemonthly 12,13,32,33, or anouter ringofstations in exchange5.7 twoormore quarterly.
34,35,36,37, the16 accessible sectors dosimeters ateach location.41,42,43,44, within 3to 5 miles ofthe 46,53,55,60 plant.
C)11Stations tobe placed in Quarterly exchange7; twoor Gammadosequarterly.
16,17,18,19, special interestareas such moredosimeters ateach 20,31,45,52, aspopulation centers, location. 54,56,58 nearby residences, schools andin4 or5 areas toserve ascontrols.
D)6 Stations tobeplaced Quarterly exchange7 twoor Gamma& neutron 78,79,80,81, dose around theISFSI more dosimeters ateach 82,83 quarterly.
boundary. location.
WATERBORNE IV. Surface A)1 indicator sample Timecomposite samples6 with 213 Gammaisotopic monthly Water downstream tobetaken at collection every month.5 with quarterly composite a location which allows for (by location) tobe mixing a dilutioninthe analyzed for tritium.7 ultimate receiving river.
B)1Control sample tobe Timecomposite samplesewith223 GammaiSOtopiC monthly taken ata location onthe collection every month.s with quarterly composite receiving river .
sufficiently (by location)tobe analyzed for tritium.7 far upstream such that no effects ofpumped storage operation are anticipated.
C)1 Indicator sample tobe Timecomposite samplese with 233 Gamma lSOtopic monthly taken intheupper reservoir collection every month 5 with quarterly composite ofthe pumped storage (by location) tobe facility atthe plant analyzed fortritium.7 discharge canal.
V.Ground Water A)12Indicator samples tobe Quarterly grab sampling.7 6,26,27, Gammaisotopic and taken within theexclusion 101-103, tritium analyses boundary andinthe 106, quarterly.7 direction ofpotentially 108,110, affected ground water 112-114 supplies.
B)1 Control sample from Quarterly grab sampling.7 59 Gamma isotopic and unaffected location. tritium analyses quarterly.'7 14
Pathway Criteria a d/or Sample for Selection of SamplingandCollection Sample Type& Frequency of Sam le N umber & Location Frequency Location Analysis VI.Drinking A)1 Indicator sample from a Monthlygrabsampling.5 28 Monthly5 gammaisotopic Water nearby public ground water andgross beta analyses supply source. andquarterly7 composite for tritiumanalyses.
B) 1 Indicator (finishedwater) Monthlycomposite sampling. 17 Monthly5 gammaisotopic sample fromthe nearest andgross beta analyses downstream watersupply. andquarterly7 composite for tritiumanalyses.
C)1Control (finished water) Monthlycomposite sampling. 39 Monthly5 gammaisotopic sample from anunaffected andgross beta analyses water supply. andquarterly7 composite for tritiumanalyses.
INGESTION:
Vil.Milk4 A)Samples from milking Semimonthly whenanimals Tobe Gammaisotopic andI-animals in3 locations areon pasture5 monthly other supplied131analysis 5 kmhaving whenmilk semimonthly5 within the times5 when highest dose potential.If animals are animals areonpasture, there arenone then1 found in monthly other times.5 sample from milking accordance animals ineach of3 areas criteria with between 5to8 kmdistance VIIA.
where doses are calculated tobegreater than 1mrem per year 15 B)1Control sample tobe whenanimals Semimonthly 16 Gammaisotopic andI-taken atthe locationofa areonpasture5 monthlyother 131analysis dairy > 20miles distance times,5a' semimonthly5 when andnotinthe most animals are onpasture, prevalent wind direction.2 monthly other times.5 5
C)1 Indicator grass (forage)Monthly whenavailable Tobe Gamma isotopic.
sample tobetaken atthe supplied location ofoneofthe whenmilk dairies being sampled are animals meeting the criteriaof found in VIl(A), above, when accordance animals are onpasture. with criteria Vll.A.
D)1Control grass (forage)Monthly whenavailable.50'16 Gammaisotopic.
sample tobetaken atthe location ofVII(B) above.
15
Exposure Pathway Criteria and/or Sample for Selection of Sampling andCollection Sample Type& Frequency of Number& Location Frequency Location Analysis VIII.Food A)2 samples ofbroadleaf Monthly whenavailable? 6 Gamma isotopiconedible Products vegetation grown inthe2 7 portion.
nearest offsite location of highestcalculated annual average ground level D/Qif milk sampling isnot performed within 3 kmorif milk sampling isnot performed ata location within 5to 8 kmwherethe doses are calculated tobe greater than 1 mrem/yr.10 B)1Control sample for the whenavailable?
Monthly 40 Gamma isotopiconedible samefoods taken atleast portion.
10miles distance andnot inthe mostprevalent wind direction ifmilk sampling is notperformed within 3 km orif milksampling isnot performed ata location within 5to8 kmwhere the doses are calculated tobe greater than 1mrem/yr.10 IX.Fish A)1Indicator sample tobe collection.1 SemiannualS 233 GammaiSOtopic onedible taken ata location inthe portions semiannually.S upper reservoir.
B)1Indicator sample tobe SemiannualS collection.1 213 Gamma onedible isotopic taken ata location inthe portions semiannually.9 lower reservoir.
C)1Control sample tobe SemiannualS collection.1 223 taken ata location onthe portions semiannually.S receiving river sufficiently far upstream such that no effects ofpumped storage operation areanticipated.
AQUATIC:
X.Sediment A)1Indicator sample tobe Semiannual grabsample.S 233 Gammaisotopic.
taken ata location inthe upper reservoir.
B)1 Indicator sample tobe grab Semiannual sample.S 213 Gamma jgotopje, taken onornear the shoreline ofthe lower reservoir.
C)1Control sample tobe grab Semiannual sampleS 223 Gamma isotopic.
taken ata location onthe receiving river sufficiently far upstream such that no effects ofpumped storage operation areanticipated.
16
Table 6 (cont) -
RadiologicalEnvironmental Monitoring Program Specifications FOOTNOTES
- 1. Fish include 3 groups (Bass, Bream/Crappie, Catfish/Carp.)
- 2. Sample sitelocations are based on5-year average meteorological analysis.
- 3. Though generalized areas are noted forsimplicityofsample site enumeration, airborne, water andsedimentsampling isdoneatthesamelocation, whereas biological sampling sites aregeneralized areas in ordertoreasonably assure availability ofsamples.
- 4. Milking animal andgardensurvey results will beanalyzed annually.
Ifthesurvey should indicate newactivity theowners shall becontacted with regardtoa contract forsupplying sufficient samples. Ifcontractual arrangements canbemade,site(s) will beaddedfor additional milk sampling uptoatotal of three Indicator locations.
- 5. Nottoexceed 35days.
- 6. Timecomposite samples aresamples whichare collected with equipment capable of collecting analiquot attime intervalswhich areshort relative tothecompositing period.
- 7. Atleast onceper100days.
- 8. Atleast once per18days.
- 9. Atleast once per200days.
- 10. Thedoseshall be calculated forthemaximumorgan andage group, using the guidance/methodology contained inRegulatory Guide 1.109, Rev.1 and the parameters particular tothesite.
- 11. Milk andforage sampling atthecontrol locationisonly required whenlocations meeting thecriteria ofVil(A) arebeing sampled.
17
Table7 Supplemental Radiological Environmental Monitoring ExposurePathway Criteria for Selection of Sampling and Sample Type& Frequency of and/or Sam le Sam leNumber & Location Collection Freuenc Location Analsis AIRBORNE:
S-l.Particulate A) 1 Indicatorsample Continuous sampler 8 Gross betafollowing monitoring thenearest operation with weekly filter change; Monthly community with the highestcollection. Composite (by anticipated dose orground location) forgamma level concentration. isotopic.
S-II.RadiolodineA) 1 indicator sample tobe Continuous sampler 8 Gammaisotopic for taken from the location of operation with weekly I-131 weekly.
S-1(A) above. collection.
S-III.
Direct A) 5 stations tobeplaced Quarterly exchange7; two 61,62,63,Gammadose within theexclusion ormore dosimetersat 68& 99 quarterly.
boundary. each location.
B) 2 stations tobeplaced Quarterly exchange7; two 94,97 Gammadose around VCSNS sludge ormore dosimeters at quarterly.
lagoons. eachlocation.
WATERBORNE:
Surface S-IV. A) 1 indicator sample tobe Composite samples with 77 Gammaisotopic and Water taken ofthe combined monthly collection 13,5 tpjtjum, wastewater discharge.
B) 1 indicator sample taken at Daily sample with 72,73 Gammaisotopic and each storm drain outfall.monthly composite. tritium.
Drinking S-VI. A) 1 Indicator (finished water) Quarterly. 99 Quarterly gamma Water sample tobetaken onsite. isotopic, gross beta and tritium analysis.
B) 1 indicator (finished water) Quarterly. 31 Quarterly gamma sample ofpublic system. isotopic,gross beta andtritiumanalysis.
18
Exposure Pathway Criteria forSelection of Samplingand Sample Type& Frequency of and/or Sam le Sam leNumber & Location Collection Freuenc Location Analsis INGESTION:
S-Vil. Milk4 A) 1Sample from oneofthe Biweekly grab 14 Gammaisotopic and nearest affected dairies at sample.a,14.+ I-131analysis orbeyond 5 miles. biweekly.
B) 1Control sample tobe Biweekly grab 16 Gammaisotopic and taken atthelocation ofa sample.e,14,+ I-131analysis dairy greater than 20miles biweekly.
distance andnotinthe mostprevalent wind direction.
C) 1Indicator grass (forage) Monthly when 14 Gammaisotopic.
sample tobetaken atthe available.14 location ofS-VII(A) above.
S-Vil. Milk4 D) 1Control grass (forage) Monthly when 16 Gammaisotopic.
sample tobetaken atthe available.14 location ofS-Vil(B) above.
E)2 Indicator grass (forage)Monthly when available. 2,7 Gammaisotopic.
samples tobetaken at2 of thelocations beyond butas close tothe exclusion boundary aspractical where thehighest offsite sectorial ground level concentrations are anticipated.
F)1Control grass (forage) Monthly whenavailable 40 Gammaisotopic.
sample tobeused for routine monitoring along with S-VII(E) above.
G)1 Indicator grass (forage)Quarterly whenavailable.25 Gamma isotopic.
sample tobetaken at location ofpenstock leak.
S-VIII.Food A) 1 Indicator sample of Annually during growing 6,7 Gammaisotopic on Products various types offoods season.11 edibleportion.
grown inthearea surrounding theplant (root, fruit,grain).
B) 1Control sample ofvarious Annuallyduringgrowing 40 Gammaisotopic on types offoods grown. (root,season.11 edibleportion.
fruit,grain).
Corbicula C)1 Indicator sample ofedibleSemiannual. 23 Gammaisotopic.
portions.
19
Exposure Pathway Criteria for Selection of Samplingand Sample Type& Frequency of and/or Sam le Sam leNumber & Location Collection Freuenc Location Analsis S-IX.Sediment/ A) 1Indicator sample from Semiannually. 72,73 Gammaisotopic.
Sludge each storm drain outfall.
B) 3 Indicator sludge Semiannually. Onsite Gammaisotopic.
samples takenatsludge lagoons 006A,006B&
008.
C) 1 Indicator sample of Annually 25 Gammaisotopic.
topsoil from penstock spill area.
S-X. Ground Water A)11Indicator samples to be taken sampling.7107,111, Gammaisotopic grab Quarterly and withinthe exclusionboundary analyses 115-123 tritium andinthe directionofpotentially quarterly.7 affected ground water supplies.
20
Table 7 (cont) Supplemental Radiological Environmental Monitoring FOOTNOTES
- 1. Reserved forfuture use.
- 2. Reserved for future use.
- 3. Reserved for future use.
- 4. Milkinganimal andgarden survey results will beanalyzedannually.thesurvey If should indicate newactivity theownersshall becontacted with regard toa contract forsupplying sufficientsamples. Ifcontractualarrangements canbemade,site(s) will beadded for additionalmilk sampling uptoa totalof 3 Indicator locations.
- 5. Nottoexceed 35days.
- 6. Reserved for future use.
- 7. Atleast onceper 100days.
- 8. Atleast onceper18days.
- 9. Atleast onceper 200days.
- 10. Reserved for future use.
- 11. Atleast onceper 400days.
- 12. Reserved for future use.
- 13. Weekly, whencirculating water isnotoperational.
- 14. Milk andgrass (forage) sampling isnotrequired VCSNSgaseous unless releases exceed 5%ofquarterly organ doselimits orradionuclides toVCSNS (attributed operation) are detected inbroadleaf vegetation, grass orair samplesatconcentrations than greater required LLD. Sampling should continue fortwomonths after plantreleasesarereduced toless than trigger levelsandmilk contamination levels havereturnedtobackground levels.
+ TheODCMrequires semimonthly sampling whenanimals areonpasture,monthlyat times.
other 21
o Number Measuremens Nonro O 0 0 0 0 0 O O 0 0 0 0 Locaions 53/53LLD LLD LLD .04E+
9/9 N/ALLDLLD LLDLLDLLD LLDLLD LLDLLD in,e Range o < < < o < < < < < < < < <
Conro 22E2
.04E2 A A A 786E+0 452+0 A A A A A A A A A 440E 2020 Op for #/oa 405E2 53/53 4/4 .E+
.09E+
4/4LLD Mean @ange .05E+
o o o <
0 Summary Mean Annua 23E2
.7E2 .05E+
A 986E+0 976E+0 O
Program hes Hi wih ckn Lison, Barnabas, NNE Consrucion E
SS Gae, Locaion Name Monioring ance mies Sie 30, Sie S.mies 28 55, Sie McCrory mies 66 3, 22 Sie Environmena "S
a"8
- /
405E2 264/265 o LLD LLD LLD .E+
5/5 o
.4E+
24/24 LLDLLD o < LLD LLD LLD LLDLLDLLDLLD en" Radioogica gng AH 207E2 930E3 A
A A 86E+0 783E+0 442E+0 42E+0 A
A A
A A A A
A A
8 Tabe Deeci o
52E3
.0E2 Max. 202E3
.72E2 20E3 50E2 70E2 60E2 N/AN/A .67E+0 20E+3 482+2 .99E+0
.5E+500E+0 30E+
.5E+ 30E+
'.5E+
23E+0 356E+030E+.86E+0 249E+0 358E+0.5E+
.5E+
Spec72 neres36 AcuaM Gamma36 Gamma24 Bea ec Perormed Anayses Quaery o
ber CsCS38 36 S Mn Fe C0 seCo zn zrNbCs N
38 Gamma Gross ecia H
Gamma TLDWaer ped Sa o UniParicuae PahwaAirDirec Air Radioodin Ci/m Ci/
Surace
o O O O O 0 0 0 0 O 0 0 O 0 O 0 Number Locaions
- /oa LLDLLDLLDLLDLLD Range LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD Mean Conro A A A A A A A A A A A A A A A 2020 NoRe for #
Mean Summary
- /oa M
Range Annua Mean Program hes Hi Monitoring wih Direcion Locaion Name Disance 23 Environmenta Locaions
Mean A
A A
A A
A A
A A A A
A A
A A
Max.
8 Tabe Limi cont. o Deecions Lower .78E+0 Acua 63E+0
.79E+
60E+
.8E+ 490E+2
.5E+ 608E+0 200E+3 600E+0
.5E+704E+0
.5E+495E+0 30E+.8E+
30E+
.5E+ 50E+0 740E+0 30E+
.5E+ .8E+
.5E+
407E+0 60E+
482E+046E+0 269E+.5E+
Toa Spec52 o
and Type P Anayses Number CS erormedi 4BaLa 52 H
MnDOFe C0 Gamma eszn zrNbCS Cs Ba La o
orUni Medium Waer Waer Coninued Ci/
Surace Ground
o O O O O 0 O 0 0 0 O O 0 Number Locaions
- /oa 4/2 LLD Range o <
LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD Mean Conro 294E+0A 229E+0 A A A A A A A A A A A A 2020 44E NoRe for Op Mean 48+0 5/2 /2935E+2 M
Summary
- /oa Range o O2 o
Annua Mean Program hes 297E+0935E+2 225E+0935E+2 Hi wih Direcion Monioring Locaion Name SEWorks, Works, Coumbia SE Coumbia mie.s,mies, 7,
Waer Disance Sie 7,
Waer Sie 25 24 Environmena Locaions
- /oa Range 444+0
/24/24 935E+2 LLD LLD LLDLLDLLDLLDLLD LLDLLDLLDLLDLLD Radioogica o
ndicaor A
Mean 295E+0935E+2 225E+0 o
935E+2 A
A A
A A
A A
A A
A A
A Con.Limi Lower o
Max. .5E+
289E+0 Deecion 400E+0 482E+2 25E+0 229E+0 56E+0
.5E+28E+0 30E+596E+0 463E+0 30E+
.5E+ 227E+0
+
30E+ .0E+0 52E
.5E 249E+0.89E+
60E+
.8E+
.5E+
260E+0 .5E+
347E+0 8
Tabe Acua Toa o
andBea 36 PGross Anayses Number 36 Spec72 erormed'MnCoFe 6C0 2n 2r Nb Cs CSBa La Type H
Gamma o
orUni Medium Waere Drinking
of O 0 0 0 0 O 0 0 O Number Locaions
- /oa Range LLDLLD LLDLLD LLD LLD LLD LLD LLD LLD Mean Conro A A A A A A A A A A 2020 NoRe 0 for Summary M
Mean
- /oa Range
/6 o
Annua Mean .9E+
.9E+
Program hes Monioring Hi wih Direcion Locaion Name Disance Environmena Locaions
- /oa RangeLLDLLDLLDLLD LLDLLD LLDLLD LLD
.9E Parr Sie
/2 SS Reservoir, 2, mies,
.9E+
25 Radioogica ndicaor A
Mean A
A A
A A
A A
A A
o
.9E+
.9E+
Con.
Limi Max.
8 o
Deecion Lower Tabe Acua .34E+
205E+ .83E+
80E+
6.OE+
60E+ .3E+2 203E+
227E+26E+2
.3E+2 490E+
.84E+26E+2
.3E+2 28E+
.3E+2 22E+
534E+
Toa o
and PGamma Number erormed' Anayses Cs Cs MnCo Fe C0 Gamma 8 znCs Cs Type o
orUni MediumSpecVegea 36Ci/k we Broadea SpecCi/k we Fish
of 0 0 0 O Number 2/2 Locaions
- /oa LLDLLDLLD Range< < < <
LLD o Conro Mean A A A A 34E+
.52E+
2020 NoRe O for 530 Mean 482E+
M 2/2 Summary
- /oa Range o Annua Mean Program hes 403E+
324E+
Hi Monioring wih Direcion Locaion Name mies Parr 27 2,
Disance Sie Reservoir, 26 Environmena Locaions
- /oa RangeLLDLLDLLDLLD 482E+
2/4 Radioogica ndicaor A
Mean A
A A A o
403E+
324E+
Cont.
Limi 892E+0 672E+0 8
Deecion Lower Tabe o
.08E+
Acua Max. N/AN/A 889E+0
.0E+
N/A.5E+2 ToaSpec o
PGamma Number erormed' Anayses and MnseCo C0Cs 3Cs Type or o
Uni Medium 6Ci/k Sedimen
Table 8 (cont) RadiologicalEnvironmental Monitoring Program Summaryfor 2020 Footnotes
- 1. Includesindicator andcontrol analyses. Site 8,Air Particulates andAir Radioiodines are included asindicators. Doesnotinclude other supplemental samples.
- 2. Values given aremaximum MDAvalues for indicator locations calculated fromtheprogram data analyses. The maximum acceptable LLDvalues allowed fromNRCguidelinesare given inparentheses.
- 3. Meanandrange arebasedon detectable measurements only. ofdetectable Thefractions measurements (i.e.,
number of positive results/total number of measurements)atspecific locations areindicated inparentheses.
- 4. Anyconfirmed measured level ofradioactivity inanyenvironmental medium thatexceeds thereporting requirements ofODCM,Section 1.4.1.2.
- 5. Detection sensitivity isapproximately 10mrem/yr (1.0 pR/hr).
- 6. Elevated levels of214Pband214Bi wereobservedin Jenkinsville drinking watersamples.
Thevalues arenotreported here because they arenaturally occurring (do notoriginate from VCSNS) andfurnish noquantifiable information ofinterest.
- 7. Fish include 3 groups (Bass, Bream/Crappie, Catfish/Carp.)
- 8. Elevated levels of214Pb and214Bi plus other 226Ra daughter plus products and 228Ac other 232Th daughter productswereobserved inall sediment samples.The values arenot reported here because they arenaturally occurring (do originatefrom VCSNS) and n ot furnish noquantifiable information ofinterest.
- 9. Drinking water resin prepared andcounted for 131i asseparate sample.
27
Number MeasuremensO 0 O 0 O O 0 0 0 0 0 Locaions53/55 58E2 LLD 56E3 4/66 LLD .6E+3 LLDLLDLLDLLD LLDLLD LLD LLD
- /oa Range o o < o <
305/305 o
64 .2E+3 o < < < < < < < <
Conro 79E3 A
.2E2 42E3 A 97 67E+2 A A A A A A A A oNa Meanz .2E 28E2 32E3 Summary Re 0p O. 0p 52/52 55E 60E22/2252E3 25/
42 472/7 Mean#/oa 42/42 o.8E+3 0
Baseine Range o o o 6/6o 407/7 o
Annua hes Mean .3E 30E2 2.E225E3 .4E+3
.2E2 38E3 3. 22 3. .6E+3 Preoperationa
- 6. 35 6 Hi o E SE
- D wih Dam, NNW S
ENE Tower, NNE Dam, Direcion Res. NNWBarnabas mies, Coumbia mie Locaion Program & Norh mies, Disance 3,
.5 Mon.
224, 298,Rd Sie Me 0,
mies, 24 29 Sie SieSieSie Noh 3, mies, S.287,247 55, Church, Sie Cana, 28 MonitoringRange Mean ndicaor 55E 66E2 456/462 562/564 LLD 52E3 22/24LLD95/95 54/54 47 47 8/29 24E+3 LLDLLDLLDLLDLLD LLD LLD LLD A
Locaions
- /oa
.E o o 27E2
.3E2 32E3 A
o <
.5E3 A
o 99 02 o
67 .4E+3 68 o
.E+3 A
A A A
A A
A A
Environmenta o
Acua Radioogica 9
Limi 4.E3 Max.
Deecioni Lower .0E2 30E3 3.E3
.0E2 70E2 36E2 05 N/A05N/A 20E+3
.E+3 .5E+
27E29E 30E+
.5E+ '.5E+
e.0E+0 24E 79E52E
.5E+
30E+ .5E+
33E .5E+
30E TabeToaBea Spec307 220 Spec40 Perormed 6
and o
Type Anayses Number 300 Gross Cs 0s 290 Gamma Monhy Gamma Gamma 43 H
MnCoFe C0 Gamma esznzr NbCs Pahway TLD Waer and o
Period Paricuae 982 or Uni Sampedorin MediumDirec Air Radioiodin Ci/m Air pCi/
Suace
Number Measuremens 0 O O 0 0 0 O O 0 0 0 0 O O O O O
.9E+3 Locaions
< o LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD Mean .3E+3 Conro A A A
.0E+3A A A A A A A A A A A oNam hn O 98E+2 Re Mean#/oa Range.6E+3 8/8 23E+3 3/7 Annua Mean 95E+2 o
84E+2 o
70E+2 3/3 hes Hi We wih LocaionDirecion
& Onsie R Jenkinsv SE mies, Disance 26, She 26 28, 20 Sie 29 Means Range ndicaor LLD LLD LLD 6/6 23E+3 LLDLLDLLDLLDLLDLLDLLDLLD LLD 98E+2 LLDLLD 6/4 LLD LLD Locaions o < o < <
- /oa .5E+3 A
A A A 95E+2 A A A A A A A A A A A 78E+2A 68E+2 A
o Acua Limi LowerMax.
22E Deecion 22E+0 60E+
.8E+
55E OE+2
.5E+
9 37E+0 20E+3 38E+0
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.5E+ 46E+0 68E+0
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30E+ +
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.5E
+
.8E 50EO 60E+
.9E+ .5E+
63E+2 .5E+
30E .5E+
27E 20 Toao NumberPerormed Anayses Cs BaLaon Spec32 Mn CoFe oCo zr Nb Cs Cs Ba on La Bea 4
Spec44 Mn Co Gamma zn and 982 Type 982 Gross H
Gamma Pahway or o
Uni and Samped Penod Waer orin Ground 82 9898 Wae Drinkin Medium 98
Number Measuremens O O O 0 O O 0 0 0 0 0 0 O O 0 0 Locaions
57E+0< <
37E+0.3E+
A A A
A .3E+
oNam O
6.E+0 .6E+
Re Mean#/oa 8/47 5/29 Range o o No 4.E+0 O
Annua hes Mean 28E+059E+ .6E+
Hi wih LocaionDirecion Dairy, 4,mies, Dairy, 4,mies, Disance Sie
- 5. Sie
'5.
30 Range Mean 6.E+0 LLD .6E+
indicaor A
- /oa A
LLD Locaions A
LLD A
LLD A
LLD A
LLD A
LLD A
LLD A
LLD A
LLD A
LLD A
LLD A
8/47 o LLD 4.E+0 LLD 28E+0 50E+
A A A
LLD A
3/5 o
.6E+
o Acua Limi Lower 96EO Max.
Deecion .5E+'
30E+
34E 26E 30E+
48E34E .0E+0
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22E24E25EO 60E+
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67E+ 33E+
27E+
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ToaFe Co2n o
Number and Perormed Anayses eszr NbCs CSBa La oni Gamma 982 3 Cs Cs Ba La 82 Cs Cs Gamma Type Pahway or o
Uni and Samped Period orin SpecpC 94989 Mik Spe we pCi/kg Medium Grass
Number Measuremens 0 0 0 0 O 0 O 0 O O 0 O Locaions
9/2LLDLLDLLD LLD LLD LLD 6/6 Conro Mean A
A A
o <
3.E+
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A A A A 42E+
o
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26E+
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Annua Sin 34E+
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hes Hi Line, Direcion N
wih Parr Locaion &
S Trans.
mies, Recreaion mies, 55 2, SS Reserv mies, Disance 2,.2 Sie 24, Sie Lake, Sie 3
Range Mean 36E+ .0E+2 2/8 45E+2 ndicaor Locaions LLD LLD
- /oa 3.E+
2/7 o LLD LLDLLD 50/7 LLD o < LLD LLD LLDLLD LLD
< o A
A A
'.8E+ 28E+
A A A
.E+
A A A A A A
.7E+2 26E+
o Acua Limi Deecion Lower 60E+
.9E+
Max.37E+ 80E+
2.E+ 84E+0 80E+
.0E+
80E+ .3E+2
.4E+
.8E+ .3E+2 26E+ .3E+2
.8E+ 26E+2 90E+
4.E+ .3E+2 26E+2
.8E+ .5E+2 23E+ .5E+2 24E+
Toao Number Perormed andSpecCSCS Anayses Cs CS 92Cs Cs C0MnFe Gamma GammaGamma ezn oCoSpec CSCs Type Pahway or o
Uni and Samped Medium 0Vegeaion Gamma Penod we980982 Broadea orin SpecpCi/
3298098 Vegeaion we OherFish Spec98 we pCi/kg 249 pCi/kg Sedim
Table 9 (Cont.)- Radiological Environmental Monitoring Program Preoperational (Baseline) Summary Footnotes
- 1. Values given areMDA values calculatedfrom theprogram data analyses withmaximum acceptable LLDvalues allowed fromNRCguidelines given inparentheses.
- 2. Meanandrange arebased on detectable measurements only. Thefractions ofdetectable measurements atspecific locations areindicatedinparentheses.
- 3. A non-routine measurement isany confirmed measured level ofradioactivity inan environmental medium that exceedsthe reporting requirements of VCSNSODCM,Section 1.4.1.2.
- 4. Thebaseline valuesarehigh because ofthe fallout from theChinese bombtest in1980.
Thefirst setofdata reflects the1981baseline. The second setofdata reflectsthe1982 baseline,essentially free ofbombtest fallout. The 1982 data covers theperiod 1/1/82 10/22/82.
- 5. Detection isapproximately sensitivity 5 mrem/yr (0.5 pR/hr) determined from theanalyses offiveyears ofpreoperational data.
- 6. No control locationwasspecified fordrinking water during thepreoperational monitoring period.
- 7. Inconclusive data.
32
Table 10 Results of2020Environmental Inter-Comparison Program with Independent Lab, & ziegler Eckert Analytics, Inc.
Comparison Study Date Nuclides Vendor Lab EnvLab Agreement Measurement Unit Results Results Gamma IsotopicLiquid 3/16 131I 92.9 91.9 Yes 1Liter 141Ce 190 199 Yes (pCi/I) 51Cr 388 383 Yes 134Cs 154 145 Yes 137Cs 185 195 Yes 58Co 196 222 Yes 54Mn 216 242 Yes 59Fe 168 191 Yes 65zn 261 281 Yes 60C0 236 245 Yes GammaComposite Filter11/6 141Ce 103 97.7 Yes (pCi) 51Cr 256 312 Yes 134Cs 138 118 Yes 137Cs 172 185 Yes 58Co 124 120 Yes 54Mn 124 146 Yes 59Fe 138 167 Yes 65zn 186 201 Yes 6oCo 261 260 Yes Alpha/Beta Water 4/20 Alpha 103 117 Yes (pCi/l) Beta 281 289 Yes Gammaisotopic 3/24 141Ce 264 254 Yes Pulverized 51Cr 540 555 Yes Soil 134Cs 215 195 Yes (pCi/kg) 137Cs 258 281 Yes 58Co 272 277 Yes 54Mn 301 330 Yes 59Fe 234 267 Yes 65zn 363 419 Yes 60C0 328 350 Yes I-131 Solid 3/16 1311 90.9 97.2 Yes (pCi) 33
Comparison Study Date NuclidesVendorLab EnvLab Agreement Measurement Unit Results Results Tritium 4/9 3H 9870 10400 Yes (pCi/I)
Gross Beta Filter 9/21 241Am 86 82 Yes (pCi) 137Cs 165 162 Charcoal Cartridge 9/15 1311 78.5 85.4 Yes (pCi)
GammaIsotopic Liquid 9/16 131I 98.2 108 Yes 4 Liter 141Ce 151 173 Yes (pCi/l) 51Cr 373 421 Yes 134Cs 201 206 Yes 137Cs 251 278 Yes 58Co 180 196 Yes 54Mn 181 201 Yes 59Fe 201 234 Yes 65zn 271 320 Yes 6oCo 380 420 Yes 34
Table 11 2020Environmental Sampling Deviations Program Sample Month Media Location WeekNo. Causefor Deviation TLD Site 47 Oct(44) Damaged TLD Site 17 Jan(01) Missing 35
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