ML15125A022

Palo Verde, Units 1, 2, and 3 - 2014 Annual Radiological Environmental Operating Report

ML15125A022
Person / Time
Site:	Palo Verde
Issue date:	04/24/2015
From:	Weber T N Arizona Public Service Co
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
102-07035-TNW/MDD/TMJ
Download: ML15125A022 (83)

Text

.~v *~rapsTechnical Specification 5.6.2Palo VerdeNuclear Generating StationPO Box 52034Phoenix, Arizona 85072-2034 Mail Station 7636102-07035-TNW/MDD/TMJ April 24, 2015ATTN: Document Control DeskU.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station (PVNGS)Units 1, 2, and 3Docket Nos. STN 50-528/529/530 Annual Radiological Environmental Operating Report 2014In accordance with PVNGS Technical Specification (TS) 5.6.2, enclosed pleasefind the Annual Radiological Environmental Operating Report for 2014 whichincludes an appendix consisting of an amendment to the Annual Radiological Environmental Operating Report for 2012.No new commitments are being made to the NRC by this letter. Should youneed further information regarding this submittal, please contact MichaelDilorenzo, Licensing Section Leader, at (623) 393-3495.

Sincerely, Thomas N. WeberDepartment Leader,TNW/MDD/TMJ/hsc Enclosure cc: M. L. DapasM. M. WatfordC. A. PeabodyA. V. GodwinT. MoralesRegulatory AffairsNRC Region IV Regional Administrator NRC NRR Project Manager (electronic

& hard copy)NRC Senior Resident Inspector for PVNGSArizona Radiation Regulatory Agency (ARRA)Arizona Radiation Regulatory Agency (ARRA)A member of the STARS (Strategic Teaming and Resource Sharing)

AllianceCallaway

• Diablo Canyon

• Palo Verde

• Wolf Creek-.----- 92

• ~ENCLOSURE Palo Verde Nuclear Generating StationUNITS 1, 2, and 3Annual Radiological Environmental Operating Report 2014 4P .'4jNUCLEAR GENERATING STATIONANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT2014(

Reference:

RCTSAI 1643, Legacy Item No. 036843.01)

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I have reviewed this documentReviewed by:__Z99 1 0) Date:.20M,04.15 16:5445 -07'00'Digitally signed by Routolo, RobertRoutolo, RobertM(Z99739)

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Date: 2015.04.15 2fl° 0 7'WManager, Radiation Protection TABLE OF CONTENTS1. INTRODUCTION

..........................................................................................................................

22. DESCRIPTION OF THE M ONITORING PROGRAM ............................................................

32.1. RADIOLOGICAL ENVIRONMENTAL M ONITORING PROGRAM .....................................................

32.2. RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM CHANGES FOR 2014 .....................

32.3. REM P DEVIATIONS/ABNORMAL EVENTS SUMMARY ................................................................

42.4. GROUND W ATER PROTECTION

..............................................................................................

43. SAM PLE COLLECTION PROGRAM ....................................................................................

113.1. W ATER .......................................................................................................................................

113.2. VEGETATION

..............................................................................................................................

113. 3. M ILK ..........................................................................................................................................

113.4. AIR .............................................................................................................................................

113.5. SLUDGE AND SEDIMENT

.............................................................................................................

11SLUDGE SAMPLES WERE OBTAINED WEEKLY FROM THE WRF WASTE CENTRIFUGE (WHENEVER THEPLANT WAS OPERATIONAL)

AND ANALYZED FOR GAMMA EMITTING RADIONUCLIDES.

COOLING TOWERSLUDGE WAS ANALYZED FOR GAMMA EMITTING RADIONUCLIDES PRIOR TO DISPOSAL IN THE WRFSLUDGE LANDFILL.

A SEDIMENT SAMPLE WAS OBTAINED FROM SEDIMENTATION BASIN #2 ANDANALYZED FOR GAMMA EMITTING RADIONUCLIDES

.........................................................................

114. ANALYTICAL PROCEDURES

..............................................................................................

124.1. AIR PARTICULATE

......................................................................................................................

124.2. AIRBORNE RADIOIODINE

............................................................................................................

124.3. M ILK ..........................................................................................................................................

124.4. VEGETATION

..............................................................................................................................

134.5. SLUDGE/SEDIMENT

....................................................................................................................

134.6. W ATER .......................................................................................................................................

134.7. SOIL ...........................................................................................................................................

145. NUCLEAR INSTRUM ENTATION

........................................................................................

145.11. GAMMA SPECTROMETER

............................................................................................................

145.2. LIQUID SCINTILLATION SPECTROMETER

..................................................................................

145.3. GAS FLOW PROPORTIONAL COUNTER .....................................................................................

146. ISOTOPIC DETECTION LIMITS AND REPORTING CRITERIA

......................................

156.1. LOWER LIMITS OF DETECTION

...................................................................................................

156.2. DATA REPORTING CRITERIA

.......................................................................................................

156.3. LLD AND REPORTING CRITERIA OVERVIEW

...........................................................................

167. INTERLABORATORY COMPARISON PROGRAM .........................................................

217.1. QUALITY CONTROL PROGRAM ...................................................................................................

217.2. INTERCOMPARISON RESULTS ......................................................................................................

218. DATA INTERPRETATIONS AND CONCLUSIONS

...........................................................

258.1. AIR PARTICULATES

....................................................................................................................

258.2. AIRBORNE RADIOIODINE

............................................................................................................

26PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -2014ii TABLE OF CONTENTS8.3. VEGETATION

..............................................................................................................................

268.4. M ILK ..........................................................................................................................................

268.5. D RINKING W ATER ......................................................................................................................

268.6. GROUND W ATER ........................................................................................................................

268.7. SURFACE W ATER .......................................................................................................................

268.8. SLUDGE AND SEDIMENT

.............................................................................................................

278.9. DATA TRENDS ............................................................................................................................

278.10. HARD-TO-DETECT RADIONUCLIDE RESULTS .....................................................................

279. THERMOLUMINESCENT DOSIMETER (TLD) RESULTS AND DATA ..........................

5610. LAND U SE CEN SU S ....................................................................................................

.... 6210. 1. INTRODUCTION

.......................................................................................................................

6210.2. CENSUS RE SULTS ....................................................................................................................

6211. SUM M AR Y AND CON CLU SION S ......................................................................................

6712. REFEREN CES .............................................................................................................................

7213. APPENDIX A -2012 Annual Radiological Environmental Operating ReportAm endm ent .......................................................................................................

73PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -2014iii LIST OF TABLESTABLE 2.1 SAMPLE COLLECTION LOCATIONS

..........................................................................

5TABLE 2.2 SAMPLE COLLECTION SCHEDULE

.............................................................................

6TABLE 2.3 SUMMARIES OF REMP DEVIATIONS/ABNORMAL EVENTS .................................

7TABLE 6.1 ODCM REQUIRED LOWER LIMITS OF DETECTION (A PRIORI) ...........................

18TABLE 6.2 ODCM REQUIRED REPORTING LEVELS ...................................................................

19TABLE 6.3 TYPICAL MDA VALUES ...............................................................................................

20TABLE 7.1 INTERLABORATORY COMPARISON RESULTS .......................................................

22TABLE 8.1 PARTICULATE GROSS BETA IN AIR IST -2ND QUARTER .....................................

28TABLE 8.2 PARTICULATE GROSS BETA IN AIR 3RD -4TH QUARTER ......................................

29TABLE 8.3 GAMMA IN AIR FILTER COMPOSITES

.....................................................................

30TABLE 8.4 RADIOIODINE IN AIR 1 STI 2ND QUARTER .................................................................

31TABLE 8.5 RADIOIODINE IN AIR 3RD -4T" QUARTER ..............................................................

32TABLE 8.6 VEGETATION

......................................................................................................................

33TAB LE 8.7 M IL K .....................................................................................................................................

34TABLE 8.8 DRINKING WATER ......................................................................................................

35TABLE 8.9 GROUND WATER .........................................................................................................

37TABLE 8.10 SURFACE WATER .......................................................................................................

38TABLE 8.11 SLUDGE/SEDIMENT

..................................................................................................

44TABLE 8.12 HARD-TO-DETECT RADIONUCLIDE RESULTS ....................................................

47TABLE 9.1 TLD SITE LOCATIONS

..................................................................................................

57TABLE 9.2 ENVIRONMENTAL TLD RESULTS ............................................................................

59TABLE 10.1 LAND USE CENSUS ....................................................................................................

63TABLE 11. 1 REMP ANNUAL SUMMARY .................................................................

68PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -2014iv I iLIST OF FIGURESFIGURE 2.1 REMP SAMPLE SITES -MAP (0-10 miles) .............................................................

9FIGURE 2.2 REMP SAMPLE SITES -MAP (10-35 miles) ...........................................................

10FIGURE 8.1 GROSS BETA IN AIR, 1St-2 d Quarter .....................................................................

48FIGURE 8.2 GROSS BETA IN AIR, 3rd-4h Quarter ........................................................................

49FIGURE 8.3 HISTORICAL GROSS BETA IN AIR (WEEKLY SYSTEM AVERAGES)

..........

50FIGURE 8.4 HISTORICAL GROSS BETA IN AIR (ANNUAL SITE TO SITE COMPARISONS)

CO M PARED TO PRE-O P .....................................................................................................................

51FIGURE 8.5 GROSS BETA IN DRINKING WATER ...................................................................

52FIGURE 8.6 EVAPORATION POND TRITIUM ACTIVITY PRE-OP -2008 ..............................

53FIGURE 8.7 EVAPORATION POND TRITIUM ACTIVITY 2009 -2014 ....................................

54FIGURE 8.8 SEDIMENTATION BASIN 2 Cs-137 ..........................................................................

55FIGURE 9.1 NETWORK ENVIRONMENTAL TLD EXPOSURE RATES .................................

60FIGURE 9.2 ENVIRONMENTAL TLD COMPARISON

-PRE-OPERATIONAL VS 2014 ..... 61FIGURE 10.1 HISTORICAL COMPARISON OF NEAREST RESIDENT DOSE ........................

64FIGURE 10.2 HISTORICAL COMPARISON OF NEAREST MILK ANIMAL DOSE .................

65FIGURE 10.3 HISTORICAL COMPARISON OF NEAREST GARDEN DOSE ...........................

66PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -2014V

.iABSTRACTThe Radiological Environmental Monitoring Program (REMP) is an ongoing program conducted byArizona Public Service Company (APS) for the Palo Verde Nuclear Generating Station (PVNGS).Various types of environmental samples are collected near PVNGS and analyzed for plant relatedradionuclide concentrations.

During 2014, the following categories of samples were collected by APS:* Broad leaf vegetation

• Ground water* Drinking water* Surface water* Airborne particulate and radioiodine

• Goat milk* Sludge and sedimentThermoluminescent dosimeters (TLDs) were used to measure environmental gamma radiation.

TheEnvironmental TLD program is also conducted by APS.The Arizona Radiation Regulatory Agency (ARRA) performs radiochemistry analyses on variousduplicate samples provided to them by APS. Samples analyzed by ARRA include onsite samples fromthe Reservoirs, Evaporation Ponds, and two (2) deep wells. Offsite samples analyzed by ARRAinclude two (2) local resident wells. ARRA also performs air sampling at seven (7) offsite locations identical to APS and maintains approximately fifty (50) environmental TLD monitoring locations, eighteen (18) of which are duplicates of APS locations.

A comparison of pre-operational and operational data indicates no changes to environmental radiation levels.(NOTE: Reference to APS throughout this report refers to PVNGS personnel)

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -20141 OPERATIONAL RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM1. Introduction This report presents the results of the operational radiological environmental monitoring programconducted by Arizona Public Service Company (APS). The Radiological Environmental Monitoring Program (REMP) was established for the Palo Verde Nuclear Generating Station(PVNGS) by APS in 1979.This report contains the measurements and findings for 2014. All references are specifically identified in Section 12.The Radiological Environmental Monitoring Program provides representative measurements ofradiation and of radioactive materials in those exposure pathways and for those radionuclides thatlead to the highest potential radiation exposures of members of the public resulting from thestation operation.

This monitoring program implementsSection IV.B.2 of Appendix I to 10 CFRPart 50 and thereby supplements the radiological effluent monitoring program by verifying thatthe measurable concentrations of radioactive materials and levels of radiation are not higher thanexpected on the basis of the effluent measurements and the modeling of the environmental exposure pathways.

Guidance for this monitoring program is provided by the US NuclearRegulatory Commission (USNRC) in their Radiological Assessment Branch Technical Positionon Environmental Monitoring, Revision 1, November 1979 (incorporated into NUREG 1301).Results from the REMP help to evaluate sources of elevated levels of radioactivity in theenvironment (e.g., atmospheric nuclear detonations or abnormal plant releases).

The Land Use Census ensures that changes in the use of areas at and beyond the site boundary areidentified and that modifications to the REMP are made if required by the results of this census.This census satisfies the requirements of Section IV.B.3 of Appendix I to 10 CFR Part 50.The Interlaboratory Comparison Program is provided to ensure that independent checks on theprecision and accuracy of the measurements of radioactive material in environmental samplematrices are performed as part of the quality assurance program for environmental monitoring inorder to demonstrate that the results are valid for the purposes of Section IV.B.2 of Appendix I to10 CFR Part 50.Results of the PVNGS pre-operational environmental monitoring program are presented inReference 1.The initial criticality of Unit 1 occurred May 25, 1985. Initial criticality for Units 2 and 3 wereApril 18, 1986, and October 25, 1987, respectively.

PVNGS operational findings (historical) arepresented in Reference 2.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -20142 I.j2. Description of the Monitoring ProgramAPS and vendor organizations performed the pre-operational radiological environmental monitoring program between 1979 and 1985. APS and vendors continued the program into theoperational phase.2.1. Radiological Environmental Monitoring ProgramThe assessment program consists of routine measurements of environmental gammaradiation and of radionuclide concentrations in media such as air, groundwater, drinkingwater, surface water, vegetation, milk, sludge, and sediment.

Samples were collected by APS at the monitoring sites shown in Figures 2.1 and 2.2. Thespecific sample types, sampling locations, and sampling frequencies, as set forth in thePVNGS Offsite Dose Calculation Manual (ODCM), Reference 4, are presented in Tables2.1, 2.2 and 9.1. Additional onsite sampling (outside the scope of the ODCM) is performed to supplement the REMP. All results are included in this report. Routine sample analyseswere performed at the onsite Central Chemistry Laboratory and Operating Unitlaboratories.

Analyses for hard-to-detect radionuclides were performed by GELLaboratories LLC.Environmental gamma radiation measurements were performed by APS using TLDs atfifty (50) locations near PVNGS. The PVNGS Dosimetry Department is accredited by theNational Voluntary Laboratory Accreditation Program (NVLAP) to perform ionizingradiation dosimeter analyses.

In addition to monitoring environmental media, a land use census is performed annually toidentify the nearest milk animals, residents, and gardens.

This information is used toevaluate the potential dose to members of the public for those exposure pathways that areindicated.

2.2. Radiological Environmental Monitoring Program Changes for 2014There were no changes to the Radiological Environmental Monitoring Program thatimpacted the Off-site Dose Calculation Manual (ODCM) Revision 26.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -20143

• 2.3. REMP Deviations/Abnormal Events SummaryDuring calendar year 2014, there were three (2) deviations/abnormal events with regardto the monitoring program.

Refer to Table 2.3 for more detail and any corrective actionstaken.The first two (1-2) deviations were exceedances of the quarterly 1-131 reporting level of20 pCi/L. This occurred at the following locations:

45 acre reservoir first calendarquarters, Evaporation Pond 1 A first calendar

quarters, Evaporation Pond 2A thirdquarter.

The source is radiopharmaceutical 1-131 that originates in the Phoenix sewageeffluent that supplies makeup to the Reservoirs and Circulating Water system. Thiswater is wasted to the Evaporation Ponds. This is not a plant effluent.

The third (3) and final deviation for 2014 was an air sample pump failure at site #17.This resulted in an undetermined sample volume sample for that week's sample. Defaultflow values were assumed for analysis of this sample. This is a supplemental site, notrequired per the ODCM.2.4. Ground Water Protection PVNGS has implemented a groundwater protection initiative developed by the NuclearEnergy Institute (NEI). The implementation of this initiative, NEI 07-07 (Industry GroundWater Protection Initiative

-Final Guidance

Document, August 2007), provides addedassurance that groundwater will not be adversely affected by PVNGS operations.

Several monitoring wells have been installed to monitor the subsurface water and shallowaquifer at Units 1, 2, and 3. These wells are sampled monthly and quarterly for chemicaland radiological parameters.

The State of Arizona Aquifer Protection Permit (Area-Wide)

No. P-100388 (APP) provides agreed upon monitoring parameters and reporting thresholds.

Sample results for the shallow aquifer wells are reported in the PVNGSAnnual Radioactive Effluent Release Report (ARERR).

The State of Arizona APPprovides specific regulatory criteria for groundwater protection.

Three subsurface samples were obtained, one each from Units 2 and 3 tritium monitoring wells, and one from the shallow aquifer outside of the Unit 1 radiological controlled area(RCA). These samples were analyzed for hard-to-detect radionuclides (e.g. C-14, Fe-55,Ni-63, Sr-90) as a verification that there are no underground leaks from plant systems thatmay affect groundwater.

All results were <MDA. Refer to Table 8.12 for sample results.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -20144 S ITable 2.1 SAMPLE COLLECTION LOCATIONS SAMPLESIT.. SAMPLE TYPE LOG f LOCATIONDESCRIPTION

&I46A*7A14A1517A21293540464748495153*5455575859606162*6364airairairairairairairairairairdrinking watervegetation drinking waterdrinking watermilkmilkmilk(supplemental) drinking water(supplemental) ground waterground watersurface watersurface watersurface watervegetation surface watersurface waterE16SSE13ESE3NNE2NE2E3S3W1NNW8N2NNW3N3SW'N2NN.E3NE30NNE4SW3ONSITEONSITEONSITEONSITEONSITEENE26ONSITEONSITEAPS OfficeOld US 80Arlington School371st Ave. and Buckeye-Salome Rd.NE Site Boundary351 st Ave.S Site BoundaryW Site BoundaryTonopahTransmission Rdlocal residentlocal residentlocal residentlocal residentlocal resident-goatslocal resident-goatslocal resident-goats local residentWell 27ddcWell 34abbEvaporation Pond 185 acre Reservoir 45 acre Reservoir Commercial farmEvaporation Pond 2Evaporation Pond 3NOTES:* Designates a control site(a) Distances and direction are from the center-line of Unit 2 containment and rounded to thenearest mileAir sample sites designated with the letter 'A' are sites that have the same site number as a TLD location, butare not in the same location (e.g. site #6 TLD location is different from site #6A air sample location; site #4TLD location is the same as site #4 air sample location)

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -20145 Table 2.2 SAMPLE COLLECTION SCHEDULESAMPLE AIR AIRBORNE GROUND DRINKING SURFACESITE # PARTICULATE MILK RADIOIODINE VEGETATION WA TER WA TER WA TER4 W W6A W W7A W W14A W W15 W W17A W W21 W W29 W W35 W W40 W W46 W47 M/AA48 W49 W51 M/AA53 M/AA54 M/AA55 W57 Q58 Q59 Q60 Q61 Q62 M/AA63 Q64 QW = WEEKLYM/AA = MONTHLY AS AVAILABLE Q = QUARTERLY PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -20146 TABLE 2.3 SUMMARIES OF REMP DEVIATIONS/ABNORMAL EVENTSDeviation/Abnormal Event1. The 45 acre Reservoir andEvaporation Pond IA exceededthe first quarter 1-131 reporting level of 20 pCi/liter.

2. Evaporation Pond IA exceededthe first quarter 1-131 reporting level of 20 pCi/liter resulting in aunity value greater than 1.0 (one).The quarterly tritium sample had avalue of 2,640 pCi/liter.

Actions taken1. Initial sample results exceeding 20 pCi/liter are validated when seen in surface water. The verification analysisresults also showed levels > 20 pCi/liter for theEvaporation Pond 1A sample. However, the 45 acreReservoir validating count was less than 20 pCi/liter.

The elevated 1-131 concentration is due toradiopharmaceutical 1-131 that is present in thereclaimed sewage water that supplies Circulating Waterand is not the result of plant effluents.

The source isradiopharmaceutical 1-131 that originates in the Phoenixsewage effluent that supplies makeup to the Reservoirs and Circulating Water system. This water is wasted tothe Evaporation Ponds via Circulating Water blowdown.

Because the 1-131 is not the result of plant effluents, noSpecial Report is required.

This information is providedin this report as required by the ODCM. Refer toCorrective Action Program documents CRDR 4499971,CRDR 4604440, and 4568037 for the evaluation ofexceeding the ODCM Reporting Level. No additional actions are necessary.

2. Evaporation Pond IA had an 1-131 validated resultgreater than the ODCM Reporting Level. Low leveltritium (2,640 +/- 244 pCi/liter) was detected inEvaporation Pond IA. This tritium value is below theODCM Reporting Level. If more than one radionuclide from the ODCM Reporting Level table is detected, aunity value calculation must be performed.

The elevated1-131 concentration, originating from Phoenixradiopharmaceuticals, accounted for 96% of the unityvalue. Corrective Action Program document 4604440documents this occurrence and subsequent evaluation.

No further actions required.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -20147

3. Air sample site #17 sample pumplost power between 2/24/2014 and03/04/2014.

4. Interlaboratory blind samplefailure of procedural acceptance criteria for gamma emitters inwater matrix.5. WRF Centrifuge Waste Sludgesamples for December 11 and 18,2012, entered into the REMPdatabase, were not included in the2012 Annual Radiological Environmental Operating Report(AREOR).

Additionally, the AirSample Data for sample periodDecember 25-31, 2012, enteredinto the REMP database, were notincluded in the 2012 or 2013AREOR.6. WRF 45-acre reservoir was takenout of service for liner inspection during the 4th quarter.3. The air sample pump lost power during the sampleperiod, resulting in the inability to determine the actualsample volume. Power was restored and sample volumefor the next week was valid. Event documented throughCRDR 4509720.

No further actions required.

4. Environmental radiochemical interlaboratory blindsample for mixed gamma emitters in water matrix for the2nd half of 2014 failed the procedural acceptance criteriafor Cs-134 for the Chemistry Central Lab MCA detector#2 analysis.

The Cs-134 result as documented in letter237-02963-CAS had a ratio of 0.73 with an acceptance range of 0.75 -1.33. Refer to Corrective Action Programdocument CRDR 4600038.

Corrective actions includeverification of results for both Central Lab MCAdetectors for the water geometry, calibration verification of detector

1. 2, and analyzing a separate samplegeometry to check bias. Corrective actions are completeat this time. No additional actions are necessary.

5. The sample data identified is being submitted asAppendix A of this report. This sample data wasreviewed and analyzed.

The samples were not unusual orremarkable.

This event was documented throughCorrection Action Program document CRDR 4616525.6. Technicians verified there was insufficient water toobtain the quarterly sample. The liner inspection will becomplete prior to 1st quarter 2015 sample collection date.The normal sampling regime will resume after thereservoir is placed back into service.

No additional actions are necessary.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -20148 JFIGURE 2.1 REMP SAMPLE SITES -MAP (0-10 miles)FIGURE 2.1KEY TO MAPSample Ste (D SchoolA Air Airstrip

+V Vegetation W WaterT TLDM MilkREMP SAMPLE SITES0-10 MILESPVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -20149 NiFIGURE 2.2 REMP SAMPLE SITES -MAP (10-35 miles)SURPRISEWADDELL RD EL MIRAGECACTUSilRD~-

PEORIA A. EN RTHERN AVE w[1 :::Bl 7AY HOME RDPARt" _____RO______________

THERNrMA RD i .,'ESE / RBR7JDA' R i /OIE UEKEiR,,,"A 9F I M;R:OEM,SE/'25 miles ,nis 20mies30 miles /35 miles// EYJO P :Sample ScD/'" MmMilk10PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201410

3. Sample Collection ProgramAPS personnel using PVNGS procedures collected all samples.3.1. WaterWeekly samples were collected from four (4) residence wells for monthly and quarterly composites.

Samples were collected in one-gallon containers and 500 mL glass bottles.

Thesamples were analyzed for gross beta, gamma emitting radionuclides and tritium.Quarterly grab samples were collected from the 45 and 85 acre Reservoirs, Evaporation PondsIA/B/C, 2A/B, and 3A/B, and onsite wells 34abb and 27ddc. Samples were collected in one-gallon containers and 500 mL glass bottles.

Samples were analyzed for gamma emitting radionuclides andtritium.Treated sewage effluent from the City of Phoenix was sampled as a weekly composite at the onsiteWater Reclamation Facility (WRF), and analyzed for gamma emitting radionuclides.

A monthlycomposite was analyzed for tritium.3.2. Vegetation Vegetation samples were collected

monthly, as available, and were analyzed for gamma emittingradionuclides.

3.3. MilkGoat milk samples were collected

monthly, as available, and were analyzed for gamma emittingradionuclides, including low level 1-131.3.4. AirAir particulate filters and charcoal cartridges were collected at ten (10) sites on a weekly basis.Particulate filters were analyzed for gross beta. Charcoal cartridges were analyzed for 1-131.Particulate filters were composited quarterly, by location, and analyzed for gamma emittingradionuclides.

3.5. Sludge and SedimentSludge samples were obtained weekly from the WRF waste centrifuge (whenever the plant wasoperational) and analyzed for gamma emitting radionuclides.

Cooling tower sludge was analyzedfor gamma emitting radionuclides prior to disposal in the WRF sludge landfill.

A sediment samplewas obtained from Sedimentation Basin #2 and analyzed for gamma emitting radionuclides.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201411

4. Analytical Procedures The procedures described in this report are those used by APS to routinely analyze samples.4.1. Air Particulate 4.1.1. Gross BetaA glass fiber filter sample is placed in a stainless steel planchet and counted for grossbeta activity utilizing a low background gas flow proportional counter.4.1.2. Gamma Spectroscopy The glass fiber filters are counted on a multichannel analyzer equipped with an HPGedetector.

The resulting spectrum is analyzed by a computer for specific radionuclides.

4.2. Airborne Radioiodine The charcoal cartridge is counted on a multichannel analyzer equipped with an HPGe detector.

Theresulting spectrum is analyzed by a computer for 1-131.4.3. Milk4.3.1. Gamma Spectroscopy The sample is placed in a plastic marinelli beaker and counted on a multichannel analyzerequipped with an HPGe detector.

The resulting spectrum is analyzed by a computer forspecific radionuclides.

4.3.2. Radiochemical 1-131 Separation Iodine in milk sample is reduced with sodium bisulfite and iodine is absorbed by theanion exchange resin. The iodine is eluted with NaOCI. Iodine is extracted from thesample with carbon tetrachloride.

The iodine is back extracted from the organic withwater containing sodium bisulfate and then precipitated as CuI. The precipitate ismounted in a planchet and counted for gross beta.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201412

4.4. Vegetation

4.4.1. Gamma Spectroscopy The sample is pureed in a food processor, placed in a one liter plastic marinelli beaker,weighed, and counted on a multichannel analyzer equipped with an HPGe detector.

Theresulting spectrum is analyzed by a computer for specific radionuclides.

4.5. Sludge/Sediment 4.5.1. Gamma Spectroscopy The wet/dry sample is placed in a one-liter plastic marinelli beaker, weighed, and countedon a multichannel analyzer equipped with an HPGe detector.

The resulting spectrum isanalyzed by a computer for specific radionuclides.

4.6. Water4.6.1. Gamma Spectroscopy The sample is placed in a one-liter plastic marinelli beaker and counted on a multichannel analyzer equipped with an HPGe detector.

The resulting spectrum is analyzed by acomputer for specific radionuclides.

4.6.2. TritiumThe sample is evaluated to determine the appropriate method of preparation prior tocounting.

If the sample contains suspended solids or is turbid, it may be filtered, distilled, and/or de-ionized, as appropriate.

Eight (8) milliliters of sample are mixed with fifteen(15) milliliters of liquid scintillation cocktail.

The mixture is dark adapted and countedfor tritium activity using a liquid scintillation counting system.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201413 4.6.3. Gross BetaA 200-250 milliliter sample is placed in a beaker. Five (5) milliliters of concentrated nitric (HN03) acid is added and the sample is evaporated down to about twenty (20)milliliters.

The remaining sample is transferred to a stainless steel planchet.

The sample isheated to dryness and counted for gross beta in a gas flow proportional counter.4.7. Soil4.7.1. Gamma Spectroscopy The samples are sieved, placed in a one-liter plastic marinelli beaker, and weighed.

Thesamples are then counted on a multichannel analyzer equipped with an HPGe detector.

Theresulting spectrum is analyzed by a computer for specific radionuclides.

5. Nuclear Instrumentation 5.1. Gamma Spectrometer The Canberra Gamma Spectrometer consists of a Canberra System equipped with I-PGe detectors having resolutions of 1.73 keV and 1.88 keV (as determined by full width half max with an energyof 0.5 keV per channel) and respective efficiencies of 21.5% and 38.4% (as determined by themanufacturer with Co-60). The Canberra System is used for all gamma counting.

The system usesCanberra developed software to search, identify, and quantify the peaks of interest.

5.2. Liquid Scintillation Spectrometer A Beckman LS-6500 Liquid Scintillation Counter is used for tritium determinations.

The systembackground averages approximately 12-16 cpm with a counting efficiency of approximately 40%using a quenched standard.

5.3. Gas Flow Proportional CounterThe Tennelec S5E is a low background gas flow proportional counter for gross beta analysis.

Thesystem contains an automatic sample changer capable of counting 50 samples in succession.

Average beta background count rate is about 1-2 cpm with a beta efficiency of approximately 30%for Cs-1 37.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201414

6. Isotopic Detection Limits and Reporting Criteria6.1. Lower Limits of Detection The lower limits of detection (LLD) and the method for calculation are specified in the PVNGSODCM, Reference

4. The ODCM required a priori LLDs are presented in Table 6.1. For reference, a priori LLDs are indicated at the top of data tables for samples having required LLD values.6.2. Data Reporting CriteriaAll results that are greater than the Minimum Detectable Activity (MDA) (a posteriori LLD) arereported as positive activity with its associated 2; counting error. All results that are less than theMDA are reported as less than values at the associated MDA. For example, if the MDA is 12pCi/liter, the value is reported as <12.Typical MDA values are presented in Table 6.3.Occasionally, the PVNGS ODCM apriori LLDs may not be achieved as a result of:* Background fluctuations

• Unavoidably small sample sizes* The presence of interfering radionuclides

• Self absorption corrections

• Decay corrections for short half-life radionuclides

• Other uncontrollable circumstances In these instances, the contributing factors will be noted in the table where the data are presented.

A summary of deviations/abnormal events is presented in Table 2.3 and includes a description ofany sample results that did not meet apriori LLD requirements.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201415 6.3. LLD and Reporting Criteria OverviewMaking a reasonable estimate of the limits of detection for a counting procedure or a radiochemical method is usually complicated by the presence of significant background.

It must be considered thatthe background or blank is not a fixed value but that a series of replicates would be normallydistributed.

The desired net activity is the difference between the gross and background activitydistributions.

The interpretation of this difference becomes a problem if the two distributions intersect as indicated in the diagram.BACKGROUND GROSSIf a sufficient number of replicate analyses are run, it is expected that the results would fall in anormal Gaussian distribution.

Standard statistics allow an estimate of the probability of anyparticular deviation from the mean value. It is common practice to report the mean +/- one or twostandard deviations as the result. In routine analysis, such replication is not carried out, and it is notpossible to report a Gaussian standard deviation.

With counting procedures,

however, it is possibleto estimate a Poisson standard deviation directly from the count. Data are commonly reported as themeasured value +/- one or two Poisson standard deviations.

The reported values are then considered to give some indication of the range in which the true value might be expected to occur.A LLD is the smallest amount of sample activity that will yield a net count for which there isconfidence at a predetermined level that activity is present.

LLDs are calculated values forindividual radionuclides based on a number of different factors including sample size, countingefficiency and background count rate of the instrument, the background and sample counting time,the decay time, and the chemical recovery of the analytical procedures.

A minimum detectable activity value (MDA) is the smallest amount of activity that can be detected in an actual sample anduses the values obtained from the instrument and outcome of the analytical process.

Therefore, theMDA values may differ from the calculated LLD values if the sample size and chemical

recovery, decay values, or the instrument efficiency, background, or count time differed from those used in theLLD calculation.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201416 The factors governing the calculation of the LLD and MDA values are discussed below:1. Sample Size2. Counting Efficiency The fundamental quantity in the measurement of a radioactive substance is the number ofdisintegrations per unit time. As with most physical measurements in analytical chemistry, anabsolute measurement of the disintegration rate is seldom possible, rather it is necessary to comparethe sample with one or more standards.

The standards determine the counter efficiency that maythen be used to convert sample counts per minute (cpm) to disintegrations per minute (dpm).3. Background Count RateAny counter will show a certain counting rate without a sample in position.

This background counting rate comes from several sources:

1) natural environmental radiation from the surrounding materials,

2) cosmic radiation, and 3) the natural radioactivity in the counter material itself. Thebackground counting rate will depend on the amounts of these types of radiation and the sensitivity of the counter to the radiation.

4. Background and Sample Counting TimeThe amount of time devoted to the counting of the background depends on the level of activitybeing measured.

In general, with low level samples, this time should be about equal to that devotedto counting a sample.5. Time Interval between Sample Collection and CountingDecay measurements are useful in identifying certain short-lived nuclides.

The disintegration constant is one of the basic characteristics of a specific radionuclide and is readily determined, if thehalf-life is sufficiently short. To ensure the required LLDs are achieved, appropriate decaycorrection values are used to account for radioactive decay during transit time and sampleprocessing.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201417 Table 6.1 ODCM REQUIRED LOWER LIMITS OF DETECTION (a priori)AIRBORNEANALYSIS/

WATER PARTICULATE orF MILK VEGETATION NUCLIDE (pCi/liter)

GAS (pCi/m3) (pCi/liter)

(pCi/kg, wet)Gross Beta [ 4 0.01oiH-3 2000* [Mn-54 1 15 __Fe-59 30 ]Co-58, 60 [ 15Zn-65 [ 30 [Zr-95 [ 30 1Nb-95 [ 15 F[1-131 [*W -0.07 j T1 r 60Cs-134 15 0.05 15 f 60Cs-137 18 0.06 18 r 80Ba-140 [ 60 [_ 60La-140 1 15 1 15* If no drinking water pathway exists, a value of 3000 pCi/liter may be used** If no drinking water pathway exists, a value of 15 pCi/liter may be usedNOTES:This list does not mean that only these nuclides are to be detected and reported.

Other peaks that aremeasurable and identifiable, together with the above nuclides, shall also be identified and reported.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201418 Table 6.2 ODCM REQUIRED REPORTING LEVELSAIRBORNEANALYSIS/

WATER PARTICULATE MILK VEGETATION NUCLIDE (pCi/liter) or GAS (pCi/m3) (pCi/liter)

(pCi/kg, wet)H-3 [ 20,000* _ 1 11 Mn-54 1 1,000 6-Fe-59 [ 400 _Co-58 I 1,000 I_I Co-60 F 300 __Zn-65 1 300 F_Zr/Nb-95

[ 400 F1-131 2** [ 0.9 3 [ 100Cs-134 F 30 [ 10 j 60 [ 1,000Cs-137 F 50 F 20 j 70 2,000Ba/La-140 r 200 [ 300The values in this table are quarterly average values, as stated in the ODCM.NOTES:* For drinking water samples.

This is a 40CFRI41 value. If no drinking water pathway exists, a value of30,000 pCi/liter may be used** If no drinking water pathway exists, a reporting level of 20 pCi/liter may be usedPVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201419 Table 6.3 TYPICAL MDA VALUESAIRBORNEANALYSIS/

WATER MILK PARTICULATE VEGETATION NUCLIDE (pCi/liter)

(pCi/liter) or GAS (pCi/kg, wet)(pCi/m3)Gross Beta 1.9 0.004H-3 340Mn-54 11Fe-59 21Co-58 10Co-60 12Zn-65 24Zr-95 19 INb-95 111-131 9 1 0.04 50Cs-134 I 1 1 0.003 49Cs-137 11 1 0.003 58Ba-140 36 4La-140 13NOTES:a -low level 1-131 is not required since there is no drinking water pathwayb -Based on 433 M3, the normal weekly sample volumePVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201420

7. Interlaboratory Comparison Program7.1. Quality Control ProgramAPS maintains an extensive QA/QC Program to provide assurance that samples are collected,

handled, tracked, and analyzed to specified requirements.

This program includes appropriate elements of USNRC Regulatory Guide 4.15, Quality Assurance for Radiological Monitoring Programs (Normal Operations)

-Effluent Streams and the Environment, Rev. 1. Included in theprogram are procedures for sample collection, preparation and tracking, sample analysis, equipment calibration and checks, and ongoing participation in an interlaboratory comparison program.

Duplicate/replicate samples are analyzed to verify analytical precision and samplemethodology.

Comprehensive data reviews are performed including trending of data whereappropriate.

During 2014, APS analyzed the following sample types under the interlaboratory comparison program;" Beta/Gamma/

in Air Filter" 1-131 in Air* Beta in Water" Gamma in Water" Tritium in Water" Gamma in Milk7.2. Intercomparison ResultsAPS participates in a crosscheck program using vendor supplied blind radionuclide samples.Results for the interlaboratory comparison program are presented in Table 7.1.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201421 TABLE 7.1 INTERLABORATORY COMPARISON RESULTSSample Analysis Nuclide Units Known PVNGS 1 sigma Resolution*

Ratio NRC Acceptable?

ID Type Value** Value Error RangeGross BetaE10843 Filter G. Beta pCi/ea 8.85E+01 1.03E+02 7.20E+00 14 1.16 0.60 -1.66 YESE10845 1-131 Cartridge 1-131 pCi/ea 7.54E+01 7.70E+01 4.30E+00 18 1.02 0.75 -1.33 YESE10844 Gamma Filter Ce-141 pCi/ea 5.36E+01 5.20E+01 3.67E+00 14 0.97 0.60 -1.66 YESCr-51 pCi/ea 2.21E+02 2.75E+02 2.78E+01 10 1.24 0.60 -1.66 YESCs-134 pCi/ea 9.47E+01 8.70E+01 6.OOE+00 15 0.92 0.60 -1.66 YESCs-137 pCi/ea 1.14E+02 1.20E+02 8.20E+00 15 1.05 0.60 -1.66 YESCo-58 pCi/ea 1.21E+02 1.23E+02 7.90E+00 16 1.02 0.75 -1.33 YESMn-54 pCi/ea 1.34E+02 1.46E+02 8.70E+00 17 1.09 0.75 -1.33 YESFe-59 pCI/ea 9.87E+01 1.00E+02 1.05E+01 10 1.01 0.60 -1.66 YESZn-65 pCi/ea 1.46E+02 1.37E+02 1.40E+01 10 0.94 0.60 -1.66 YESCo-60 pCi/ea 1.52E+02 1.54E+02 8.90E+00 17 1.01 0.75 -1.33 YESE10842 Gamma Milk 1-131 pCi/L 1.65E+01 1.69E+01 1.82E+00 9 1.02 0.60 -1.66 YESCe-141 pCi/L 1.58E+01 1.70E+01 2.19E+00 8 1.08 0.60 -1.66 YESCr-51 pCi/L 6.51E+01 8.OOE+01 1.06E+01 8 1.23 0.60 -1.66 YESCs-134 pCi/L 2.79E+01 2.83E+01 2.08E+00 14 1.01 0.60 -1.66 YESCs-137 pCi/L 3.36E+01 3.47E+01 2.36E+00 15 1.03 0.60 -1.66 YESCo-58 pCiVL 3.55E+01 3.69E+01 2.48E+00 15 1.04 0.60 -1.66 YESMn-54 pCi/L 3.94E+01 4.10E+01 2.95E+00 14 1.04 0.60 -1.66 YESFe-59 pOXL 2.90E+01 3.56E+01 3.52E+00 10 1.23 0.60 -1.66 YESZn-65 pCi/L 4.28E+01 4.53E+01 4.75E+00 10 1.06 0.60 -1.66 YESCo-60 pCi/L 4.47E+01 4.30E+01 2.56E+00 17 0.96 0.75 -1.33 YESGross BetaE10953 Water G. Beta pCil/L 2.50E+02 2.68E+02 6.OOE+00 45 1.07 0.75 -1.33 YESE10954 Tritium H-3 pCi/L 9.85E+03 9.73E+03 3.29E+02 30 0.99 0.75 -1.33 YESPVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201422 TABLE 7.1 INTERLABORATORY COMPARISON RESULTSE10955Gamma Water1-131Ce-141Cr-51Cs-134Cs-137pCi/LpO/LpCi/LpCi/LDi/lL9.88E+011.25E+022.86E+021.56E+021.92E+027.67E+019.70E+012.13E+021.14E+021.49E+025.47E+004.33E+002.17E+014.80E+005.80E+0014221024260.780.780.740.730.780.600.750.600.750.751.661.331.661.331.33YESYESYESNOYES+ i iCo-58Mn-54Fe-59Zn-65Co-60l IpCi/LpCi/LpCi/LpO/LD)Ci/L1.42E+021.41E+021.57E+027.24E+012.95E+021.08E+021.09E+021.33E+026.08E+012.35E+024.90E+005.O0E+008.40E+005.94E+008.30E+0022221610280.760.770.850.840.800.750.750.750.600.751.331.331.331.661.33YESYESYESYESYESE10956 1-131 Cartridge 1-131 pCi/ea 9.OOE+01 8.68E+01 3.69E+00 24 0.96 0.75 -1.33 YESE10957 Gamma Filter Ce-141 pCi/ea 8.39E+01 8.97E+01 4.26E+00 21 1.07 0.75 -1.33 YESCr-51 pCi/ea 1.92E+02 2.21E+02 2.02E+01 11 1.15 0.60 -1.66 YESCs-134 pCi/ea 1.05E+02 8.82E+01 5.04E+00 18 0.84 0.75 -1.33 YESCs-137 pCi/ea 1.28E+02 1.42E+02 7.60E+00 19 1.11 0.75 -1.33 YESCo-58 pCi/ea 9.51E+01 1.01E+02 6.OOE+00 17 1.06 0.75 -1.33 YESMn-54 pCi/ea 9.43E+01 1.13E+02 6.50E+00 17 1.20 0.75 -1.33 YESFe-59 pCi/ea 1.05E+02 1.36E+02 1.01E+01 13 1.30 0.60 -1.66 YESZn-65 pCi/ea 4.85E+01 6.46E+01 6.66E+00 10 1.33 0.60 -1.66 YESCo-60 pCi/ea 1.98E+02 2.14E+02 1.02E+01 21 1.08 0.75 -1.33 YES* calculated from PVNGS value/1 sigma errorvalue** Eckert & Ziegler Analytics, Inc. NIST-traceable known valueNRC Acceptance Criteria 1Resolution 4-78-1516-5051-200>200Ratio0.5-2.00.6-1.660.75-1.33 0.80-1.25 0.85-1.18 1 From NRC Inspection Manual, procedure

1. 84750, "Radioactive Waste Systems; Water Chemistry; Confirmatory Measurements" PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201423 TABLE 7.1 INTERLABORATORY COMPARISON RESULTSAssigned Value Acceptance Sample Analysis ERA PT Nudide Units PVNGS I Umit2 ResultsType Type Study ValueWater Gross Beta RAD-97 g beta pCi/L 36.2 33 21.4 -40.7 Acceptable Water Tritium RAD-97 H-3 pCi/L 8,790 8,770 7610 -9550 Acceptable Water Gamma RAD-97 Ba-133 pCi/L 92.2 87.9 74.0 -96.7 Acceptable Cs-1 34 pCi/L 41.7 44.3 35.5-48.7 Acceptable Cs-1 37 pCi/L 91.2 89.1 80.2 -101 Acceptable Co-60 pCi/L 64.3 64.2 57.8 -73.1 Acceptable Zn-65 pCi/L 258 235 212 -275 Acceptable Filter Gross Beta MRAD-21 g beta pCi/ea 28.2 21.1 13.3-30.8 Acceptable

'The ERA assigned values are established per the guidelines contained in the National Environmental Laboratory Accreditation Conference (NELAC) program criteria as applicable.

2 "Acceptance Umits" have been calculated per ERA's Standard Operating Procedure for the Generation of Performance Acceptance Limits.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201424

8. Data Interpretations and Conclusions Associated with the analytical process are potential random and systematic errors. Systematic errors can becaused by instrument malfunctions, incomplete precipitation, back scattering, and self-absorption.

Randomerrors are beyond the control of the analyst.Efforts are made to minimize both systematic and random errors in the data reported.

Systematic errors areminimized by performing reviews throughout the analysis.

For example, instruments are checked routinely with radioactive

sources, and recovery and self-absorption factors based on individual sample analyses areincorporated into the calculation equations where necessary.

Random errors are reduced by comparing alldata to historical data for the same site and performing comparisons between analytical results whenavailable.

In addition, when data do not appear to match historical

results, analyses may be rerun on aseparate aliquot of the sample to verify the presence of the activity.

The acceptance of data is dependent upon the results of quality control samples and is part of the data review process for all analytical results.The "plus or minus value" reported with each analytical result represents the counting error associated with the result and gives the 95% confidence (2a) interval around the data.Most samples contain radioactivity associated with natural background/cosmic radioactivity (e.g. K-40,Th-234, and Be-7). Gross beta results for drinking water and air are due to natural background.

Gammaemitting radionuclides, which can be attributed to natural background

sources, are not indicated in thismeomrt.Results and interpretation of the data for all of the samples analyzed during 2014 are presented in thefollowing sections.

8.1. Air Particulates Weekly gross beta results, in quarterly format, are presented in Tables 8.1 and 8.2. Gross betaactivity at indicator locations ranged from 0.010 to 0.071 pCi/m3.Mean quarterly activity isnormally calculated using weekly activity over a thirteen (13) week period. Also presented in thetables are the weekly mean values of all the sites as well as the percent relative standard deviation (RSD %) for the data.Tables 8.3 displays the results of gamma spectroscopy on the quarterly composites of the weeklysamples.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201425 8.2. Airborne Radioiodine Tables 8.4 and 8.5 present the quarterly radioiodine results.

Radioiodine was not observed in anysamples.8.3. Vegetation Table 8.6 presents gamma isotopic data for the vegetation samples.

No gamma emittingradionuclides were observed in any of the samples..

8.4. MilkTable 8.7 presents gamma isotopic data for the goat milk samples.

No gamma emittingradionuclides were observed in any of the samples.8.5. Drinking WaterSamples were analyzed for gross beta, tritium, and gamma emitting radionuclides.

Results of theseanalyses are presented in Table 8.8. No tritium or gamma emitting radionuclides were detected inany samples.

Gross beta activity ranged from less than detectable to a high of 6.6 pCi/liter.

Thegross beta activity is attributable to natural (background) radioactive materials.

8.6. Ground WaterGround water samples were analyzed from two onsite wells (regional aquifer) for tritium andgamma emitting radionuclides.

Results obtained from the analysis of the samples are presented inTable 8.9.No tritium or gamma emitting radionuclides were observed in any of the samples.8.7. Surface WaterSurface water samples from the Reservoirs and Evaporation Ponds were analyzed for tritium andgamma emitting radionuclides.

The two Reservoirs contain processed sewage water from the Cityof Phoenix and are approximately 45 and 85 acres in size. The three Evaporation Ponds receivemostly circulating water from main turbine condenser cooling and are about 200-250 acres each.Sample results are presented in Table 8.10. 1-131 was observed in both reservoirs andEvaporation Ponds IA, 1B, and 2A. The 1-131 levels ranged from 14 pCi/L -42 pCi/L. 1-131 inthese surface water locations is a result of radiopharmaceutical 1-131 in the Phoenix sewageeffluent and is not attributable to plant effluents.

Tritium was routinely observed in the Evaporation Ponds. The highest concentration was 2640pCi/liter.

Tritium was not detected in the Reservoirs.

The tritium identified in the Evaporation Ponds has been attributed to permitted plant gaseous effluent releases and secondary plant liquiddischarges (e.g. condensate overboard discharge, secondary side steam generator drains, secondary plant sumps, demineralizer regeneration waste). The tritium concentrations were compared tohistorical values and are considered typical for the Evaporation Ponds.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201426 WRF Influent (Phoenix sewage effluent containing radiopharmaceutical 1-131) samples collected by the WRF were analyzed for gamma emitting radionuclides and tritium.

The results, presented in Table 8.10, demonstrate that 1-131 was observed routinely.

The 1-131 concentration rangedfrom less than detectable to 59 pCi/liter.

None of the samples analyzed indicated the presence oftritium.Table 8. 10 also presents gamma spectroscopy and tritium measurements of samples collected fromSedimentation Basin 2. This basin collects rain water from site runoff and was dry for most of theyear. Low concentrations of tritium were identified in two (2) of eleven (11) samples ranging fromless than detectable to 534 pCi/liter.

The tritium was attributed to rain washout of plant gaseouseffluent releases.

No gamma emitting radionuclides were observed in the samples.8.8. Sludge and Sediment8.8.1. WRF Centrifuge waste sludgeSludge samples were obtained from the WRF centrifuge and analyzed by gamma spectroscopy.

I-131 activity in the sludge is consistent with historical values and, as previously discussed, is due toradiopharmaceuticals in the WRF Influent.

The concentration of 1-131 ranged from 202 to 843pCi/kg.In- 111 was also identified in the sludge in one sample at 139 pCi/kg. It was previously established that In-I ll is also used in the Phoenix area as a radiopharmaceutical.

Results for WRF centrifuge waste sludge can be found in Table 8.11.8.8.2. Cooling Tower sludgeSludge/sediment originating from the Unit 1 and Unit 2 Cooling Towers and Circulating Watercanals was disposed of in the WRF sludge landfill during 2014. Sample results can be found inTable 8.11.8.9. Data TrendsFigures 8.1-8.8 present data in graphical format. Historical data are displayed for comparison wherepractical.

8.10. Hard-to-Detect Radionuclide ResultsTable 8.12 shows the results of the three subsurface samples obtained from 3 tritium monitoring points. These samples were analyzed for hard-to-detect radionuclides (e.g. C-14, Fe-55, Ni-63, Sr-90) and all results were <MDA. These results indicate that no leaks from plant systems haveaffected groundwater.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201427 TABLE 8.1 PARTICULATE GROSS BETA IN AIR 1s' -2n' QUARTERODCM required samples denoted by *units are pCi/m31st QuarterSTARTDATESTOPDATE(control)

Site Site4 6A*Site Site Site7A 14A* 15*Site17ASite Site Site Site21 29* 35 40* MeanRSD(%)Week #1234567891011121330-Dec- 137-Jan- 1414-Jan- 1421 -Jan- 1428-Jan-14 4-Feb- 1411-Feb-14 18-Feb-14 24-Feb- 144-Mar- 1411 -Mar- 1418-Mar-14 25-Mar-14 7-Jan-14 0.04914-Jan- 14 0.04821-Jan-14 0.04028-Jan-14 0.0624-Feb-14 0.03311 -Feb- 14 0.02118-Feb- 14 0.03624-Feb-14 0.0374-Mar-14 0.02311 -Mar-14 0.01718-Mar- 14 0.02625-Mar-14 0.0281-Apr-14 0.0230.0540.0460.0430.0630.0330.0200.0380.0390.0260.0200.0280.0290.0230.046 0.043 0.0420.046 0.043 0.0430.037 0.036 0.0360.063 0.059 0.0630.032 0.030 0.0270.022 0.018 0.0180.036 0.034 0.0330.036 0.036 0.0370.026 0.023 0.0240.019 0.016 0.0190.025 0.027 0.0270.032 0.028 0.0310.024 0.023 0.0240.0430.0420.0340.0610.0310.0180.0360.037**0.03630.0180.0270.0330.0220.047 0.047 0.040 0.043 0.0450.045 0.043 0.041 0.047 0.0440.040 0.037 0.035 0.036 0.0370.064 0.052 0.058 0.066 0.0610.035 0.030 0.028 0.033 0.0310.019 0.017 0.017 0.022 0.0190.035 0.035 0.032 0.034 0.0350.031 0.041 0.036 0.029 0.0360.025 0.026 0.022 0.025 0.0240.015 0.020 0.020 0.020 0.0180.023 0.025 0.025 0.026 0.0260.027 0.027 0.028 0.025 0.0290.023 0.023 0.024 0.023 0.0238.84.97.96.47.69.75.69.95.89.55.57.92.4Mean 0.034 0.036 0.034 0.032 0.032 0.034 0.033 0.033 0.03 i 0.033 0.033 3.72nd Quarter(control)

START STOP Site Site Site Site Site Site Site Site Site Site RSDWeek # DATE DATE 4 6A* 7A 14A* 15* 17A 21 29* 35 40* Mean (%)14151617181920212223242526I-Apr- 148-Apr-1415-Apr- 1422-Apr-14 29-Apr- 146-May-1413-May-14 20-May- 1427-May-14 3-Jun- 1410-Jun-14 16-Jun- 1424-Jun- 148-Apr- 14 0.01815-Apr-14 0.03022-Apr-14 0.03529-Apr-14 0.0276-May-14 0.02913-May-14 0.02120-May-14 0.02827-May- 14 0.0323-Jun-14 0.03610-Jun-14 0.03516-Jun- 14 0.04024-Jun- 14 0.0251-Jul- 14 0.0250.0170.0270.0360.0270.0270.0210.0300.0310.0360.0370.0400.0250.0250.014 0.016 0.0140.027 0.026 0.0280.032 0.034 0.0320.027 0.026 0.0240.027 0.026 0.0270.024 0.022 0.0200.030 0.029 0.0300.033 0.020 0.0290.033 0.033 0.0350.040 0.032 0.0390.040 0.041 0.0410.025 0.026 0.0260.028 0.027 0.0240.0140.0260.0330.0250.0300.0200.0280.0290.0370.0390.0420.0250.0260.010 0.016 0.017 0.016 0.0150.024 0.025 0.027 0.028 0.0270.031 0.027 0.031 0.031 0.0320.027 0.025 0.025 0.024 0.0260.026 0.028 0.026 0.027 0.0270.023 0.022 0.020 0.020 0.0210.027 0.027 0.028 0.028 0.0280.029 0.028 0.032 0.031 0.0290.034 0.034 0.034 0.034 0.0340.037 0.036 0.039 0.037 0.0370.041 0.036 0.039 0.038 0.0400.024 0.025 0.023 0.025 0.0250.023 0.023 0.027 0.020 0.02514.85.78.05.45.46.04.212.93.66.14.63.29.6Mean0.029 0.029 0.029 0.028 0.0280.029 0.027 0.027 0.028 0.028 0.0282.8** Sample pump lost power, evaluated under CRDR 4509720PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT- 201428 TABLE 8.2 PARTICULATE GROSS BETA IN AIR 3rd -4th QUARTERODCM required samples denoted by *units are pCi/m33rd Quarter(control)

STOP Site Site Site Site Site Site Site Site Site SiteSTARTWeek # DATERSD(M)DATE4 6A* 7A 14A* 15*17A 21 29* 35 40* Mean27282930313233343536373839I-Jul- 148-Jul- 1415-Jul-14 22-Jul-14 29-Jul-14 5-Aug-1412-Aug-14 19-Aug-14 26-Aug- 142-Sep- 149-Sep-1416-Sep- 1423-Sep-14 8-Jul-14 0.02615-Jul-14 0.02622-Jul-14 0.03029-Jul-14 0.0345-Aug-14 0.03512-Aug-14 0.03019-Aug-14 0.02426-Aug-14 0.0212-Sep-14 0.0379-Sep-14 0.02516-Sep-14 0.02423-Sep-14 0.02230-Sep-14 0.0260.0280.0260.0280.0350.0320.0310.0270.0230.0350.0260.0260.0210.0260.027 0.026 0.026 0.027 0.024 0.026 0.027 0.027 0.0260.024 0.024 0.025 0.025 0.024 0.027 0.025 0.027 0.0250.029 0.028 0.024 0.029 0.021 0.023 0.024 0.028 0.0270.032 0.034 0.035 0.035 0.033 0.031 0.032 0.030 0.0330.034 0.037 0.036 0.035 0.036 0.037 0.035 0.036 0.0350.034 0.035 0.032 0.034 0.032 0.035 0.034 0.034 0.0330.030 0.027 0.027 0.029 0.028 0.026 0.027 0.026 0.0270.020 0.020 0.021 0.022 0.021 0.020 0.023 0.022 0.0210.040 0.036 0.037 0.034 0.033 0.036 0.035 0.036 0.0360.026 0.025 0.026 0.025 0.025 0.025 0.025 0.023 0.0250.025 0.027 0.025 0.024 0.023 0.026 0.025 0.026 0.0250.023 0.020 0.020 0.018 0.021 0.020 0.019 0.021 0.0200.025 0.026 0.024 0.026 0.023 0.023 0.024 0.022 0.0243.44.112.05.44.55.35.85.24.83.64.36.76.4Mean0.028 0.028 0.028 0.028 0.027 0.028 0.026 0.027 0.027 0.028 0.0282.0454th Quarter(control)

Site Site Site Site Site4 6A* 7A 14A* 15*STARTWeek # DATESTOPDATESite Site Site Site Site17A 21 29* 35 40* MeanRSDT4041424344454647484950515230-Sep-14 7-Oct- 1414-Oct- 142 1-Oct- 1428-Oct- 144-Nov- 141 1-Nov-1418-Nov- 1425-Nov- 142-Dec-149-Dec- 1416-Dec-14 23-Dec- 147-Oct-14 0.03714-Oct- 14 0.0432 1-Oct- 14 0.04328-Oct-14 0.0384-Nov-14 0.0311 1-Nov-14 0.04018-Nov-14 0.03225-Nov-14 0.0452-Dec-14 0.0319-Dec- 14 0.03316-Dec-14 0.04222-Dec- 14 0.02629-Dec-14 0.0270.038 0.037 0.039 0.037 0.039 0.031 0.036 0.035 0.036 0.0370.046 0.044 0.046 0.041 0.044 0.043 0.046 0.044 0.045 0.0440.041 0.043 0.042 0.038 0.043 0.042 0.042 0.040 0.035 0.0410.040 0.038 0.036 0.036 0.039 0.038 0.037 0.033 0.037 0.0370.030 0.031 0.030 0.029 0.027 0.029 0.028 0.027 0.029 0.0290.041 0.042 0.040 0.038 0.041 0.039 0.038 0.037 0.041 0.0430.032 0.036 0.035 0.030 0.034 0.032 0.034 0.032 0.033 0.0330.047 0.042 0.042 0.040 0.041 0.037 0.043 0.041 0.040 0.0420.034 0.029 0.029 0.031 0.032 0.032 0.031 0.030 0.028 0.0310.033 0.030 0.035 0.033 0.027 0.034 0.035 0.032 0.033 0.0330.044 0.036 0.040 0.043 0.045 0.043 0.043 0.041 0.037 0.0410.030 0.026 0.028 0.027 0.025 0.028 0.028 0.024 0.027 0.0270.028 0.027 0.025 0.023 0.025 0.025 0.024 0.022 0.023 0.0256.43.46.45.25.023.65.26.75.87.47.16.47.9MeanAnnual Average0.036 0.037 0.035 0.036 0.034 0.038 0.035 0.036 0.034 0.034 0,036 3.70.0317 0.0325 0.0317 0.0309 0.0307 0.0319 0.0303 0.0306 0.0301 0.0305 0.0311 6.7206PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201429 TABLE 8.3 GAMMA IN AIR FILTER COMPOSITES ODCM required samples denoted by *units are pCi/m3(control)

QUARTER Site Site Site Site Site Site Site Site Site SiteENDPOINT NUCLIDE 4 6A* 7A 14A* 15* 17A 21 29* 35 40*25-Mar-14 Cs-134 <0.0023 <0.0050 <0.0030 <0.0022 <0.0040 <0.0024 <0.0040 <0.0020 <0.0036 <0.0028Cs-137 <0.0026 <0.0011 <0.0038 <0.0006 <0.0054 <0.0018 <0.0038 <0.0032 <0.0044 <0.002124-Jun-14 Cs-134 <0.0024 <0.0021 <0.0034 <0.0030 <0.0030 <0.0028 <0.0049 <0.0033 <0.0013 <0.0034Cs-137 <0.0026 <0.0033 <0.0046 <0.0045 <0.0025 <0.0037 <0.0028 <0.0046 <0.0023 <0.002430-Sep-14 Cs-134 <0.0018 <0.0027 <0.0034 <0.0015 <0.0022 <0.0019 <0.0040 <0.0018 <0.0034 <0.0015Cs-137 <0.0019 <0.0033 <0.0044 <0.0018 <0.0041 <0.0015 <0.0049 <0.0026 <0.0009 <0.002230-Dec-13 Cs-134 <0.0017 <0.0033 <0.0008 <0.0016 <0.0034 <0.0022 <0.0033 <0.0021 <0.0033 <0.0019Cs-137 <0.0021 <0.0032 <0.0046 <0.0020 <0.0052 <0.0022 <0.0046 <0.0016 <0.0044 <0.0028PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT- 201430 TABLE 8.4 RADIOIODINE IN AIR 1st -2nd QUARTERODCM required samples denoted by *units are pCi/m31st Quarter(control) required LLD <0.070START STOP Site Site Site Site Site Site Site Site Site SiteWek DATE DATE# 4 6A* 7A 14A* 15* 17A 21 29* 35 40*1 30-Dec-13 7-Jan-14

<0.0261 <0.0405 <0.0482 <0.0233 <0.0482 <0.0240 <0.0428 <0.0263 <0.0564 <0.01612 7-Jan-14 14-Jan-14

<0.0592 <0.0365 <0.0557 <0.0507 <0.0210 <0.0426 <0.0359 <0.0344 <0.0450 <0.02603 14-Jan-14 21-Jan-14

<0.0318 <0.0529 <0.0592 <0.0329 <0.0561 <0.0353 <0.0499 <0.0428 <0.0678 <0.03234 21-Jan-14 28-Jan-14

<0.0357 <0.0459 <0.0467 <0.0187 <0.0329 <0.0443 <0.0367 <0.0586 <0.0366 <0.06295 28-Jan-14 4-Feb-14

<0.0287 <0.0565 <0.0330 <0.0580 <0.0263 <0.0499 <0.0336 <0.0402 <0.0216 <0.05776 4-Feb- 14 11 -Feb- 14 <0.0181 <0.0466 <0.0549 <0.0183 <0.0524 <0.0312 <0.0585 <0.0296 <0.0465 <0.02007 11-Feb-14 18-Feb-14

<0.0443 <0.0460 <0.0461 <0.0458 <0.0552 <0.0249 <0.0144 <0.0320 <0.0606 <0.02988 18-Feb-14 25-Feb-14

<0.0365 <0.0603 <0.0665 <0.0079 <0.0653 <0.0323 <0.0490 <0.0343 <0.0662 <0.02269 25-Feb-14 4-Mar-14

<0.0281 <0.0336 <0.0441 <0.0263 <0.0564 <0.0395 <0.0579 <0.0207 <0.0447 <0.017910 4-Mar-14 11-Mar-14

<0.0216 <0.0531 <0.0615 <0.0406 <0.0327 <0.0265 <0.0375 <0.0348 <0.0352 <0.034911 11-Mar-14 18-Mar-14

<0.0364 <0.0282 <0.0685 <0.0354 <0.0360 <0.0344 <0.0626 <0.0319 <0.0603 <0.026712 18-Mar-14 25-Mar-14

<0.0209 <0.0523 <0.0343 <0.0245 <0.0493 <0.0300 <0.0565 <0.0299 <0.0560 <0.032813 25-Mar-14 1-Apr-14

<0.0279 <0.0635 <0.0486 <0.0306 <0.0414 <0.0202 <0.0508 <0.0242 <0.0496 <0.03232ndQuarterrequired LLD(control)

<0.070START STOP Site Site Site Site Site Site Site Site Site SiteWeek DATE DATE 4 A# 4 6A* 7A 14A* 15" 17A 21 29* 35 40*14 1-Apr-14 8-Apr-14

<0.0240 <0.0422 <0.0618 <0.0255 <0.0520 <0.0443 <0.0471 <0.0338 <0.0417 <0.023115 8-Apr-14 15-Apr-14

<0.0512 <0.0483 <0.0387 <0.0571 <0.0485 <0.0622 <0.0685 <0.0463 <0.0500 <0.050016 15-Apr-14 22-Apr-14

<0.0369 <0.0496 <0.0232 <0.0432 <0.0220 <0.0672 <0.0233 <0.0379 <0.0259 <0.053917 22-Apr-14 29-Apr-14

<0.0580 <0.0666 <0.0688 <0.0699 <0.0694 <0.0603 <0.0456 <0.0289 <0.0616 <0.037618 29-Apr-14 6-May-14

<0.0335 <0.0540 <0.0617 <0.0247 <0.0538 <0.0335 <0.0621 <0.0391 <0.0484 <0.030219 6-May-14 13-May-14

<0.0305 <0.0668 <0.0512 <0.0190 <0.0625 <0.0447 <0.0648 <0.0386 <0.0678 <0.032920 13-May-14 20-May-14

<0.0350 <0.0620 <0.0484 <0.0337 <0.0611 <0.0277 <0.0444 <0.0127 <0.0567 <0.027221 20-May-14 27-May-14

<0.0632 <0.0364 <0.0324 <0.0508 <0.0311 <0.0663 <0.0382 <0.0468 <0.0260 <0.064022 27-May-14 3-Jun-14

<0.0540 <0.0228 <0.0510 <0.0308 <0.0127 <0.0188 <0.0638 <0.0456 <0.0563 <0.026723 3-Jun-14 10-Jun-14

<0.0304 <0.0120 <0.0429 <0.0238 <0.0427 <0.0239 <0.0577 <0.0274 <0.0674 <0.035924 10-Jun-14 16-Jun-14

<0.0345 <0.0615 <0.0594 <0.0337 <0.0662 <0.0350 <0.0632 <0.0319 <0.0510 <0.028625 16-Jun-17 24-Jun-14

<0.0292 <0.0443 <0.0537 <0.0285 <0.0455 <0.0241 <0.0516 <0.0162 <0.0394 <0.023726 24-Jun-14 1-Jul-14

<0.0365 <0.0662 <0.0296 <0.0333 <0.0424 <0.0537 <0.0285 <0.0604 <0.0068 <0.0473PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201431 TABLE 8.5 RADIOIODINE IN AIR 3rd -4th QUARTERODCM required samples denoted by *units are pCi/m33rd Quarter(control)

START STOP Site Site0.070Site SiteSiteWeekSite Site Site Site21 29* 35 40*DATEDATE4 6A*7A 14A* 15* 17A27282930313233343536373839Week#I-Jul-148-Jul-1415-Jul-14 22-Jul-14 29-Jul- 145-Aug-1412-Aug- 1419-Aug-14 26-Aug-14 2-Sep- 149-Sep-1416-Sep-14 23-Sep-14 8-Jul-1415-Jul-14 22-Jul- 1429-Jul- 145-Aug-1412-Aug-14 19-Aug-14 26-Aug-14 2-Sep-149-Sep-1416-Sep-14 23-Sep-14 30-Sep- 14<0.0429<0.0317<0.0258<0.0190<0.0295<0.0332<0.03 10<0.0342<0.0244<0.284<0.0280<0.0247<0.0342<0.0699<0.0623<0.0345<0.0207<0.0436<0.0608<0.0666<0.0561<0.0568<0.0444<0.0488<0.0660<0.0437<0.0274<0.0578<0.0395<0.0653<0.0426<0.0547<0.0552<0.0410<0.0485<0.0686<0.0217<0.0337<0.0341<0.0143 <0.0246 <0.0570 <0.0337<0.0261 <0.0570 <0.0243 <0.0639<0.0128 <0.0498 <0.0275 <0.0431<0.0331 <0.0317 <0.0223 <0.0506<0.0354 <0.0543 <0.0288 <0.0452<0.0233 <0.0573 <0.0248 <0.0483<0.0315 <0.0541 <0.0323 <0.0501<0.0322 <0.0418 <0.0226 <0.0560<0.0329 <0.0554 <0.0319 <0.0575<0.236 <0.624 <0.0191 <0.0368<0.0468 <0.0319 <0.0468 <0.0314<0.0353 <0.0585 <0.0194 <0.0689<0.0301 <0.0435 <0.0197 <0.0133<0.0535 <0.0340 <0.0619<0.237 <0.0357 <0.0323<0.0372 <0.0431 <0.0126<0.0183 <0.0493 <0.0267<0.0 185 <0.0486 <0.0272<0.0 194 <0.0688 <0.0244<0.0199 <0.0660 <0.0222<0.0532 <0.0512 <0.0477<0.0276 <0.0556 <0.0228<0.0234 <0.422 <0.0306<0.0681 <0.0229 <0.0596<0.0267 <0.0642 <0.0401<0.0324 <0.0600 <0.0271(control)

START STOP Site Site4th QuarterSite0.070Site SiteSite Site Site Site SiteDATE DATE4 6A*7A 14A* 15* 17A21 29*35 40*4041424344454647484950515230-Sep-14 7-Oct-1414-Oct-14 2 1-Oct-1428-Oct-14 4-Nov- 141 -Nov- 1418-Nov- 1425-Nov- 142-Dec- 149-Dec- 1416-Dec- 1423-Dec- 147-Oct- 1414-Oct- 1421 -Oct- 1428-Oct-14 4-Nov-14I I-Nov-1418-Nov-14 25-Nov-14 2-Dec- 149-Dec- 1416-Dec- 1422-Dec-14 29-Dec- 14<0.0256<0.0269<0.0073<0.0365<0.0335<0.0296<0.0214<0.0423<0.0418<0.0585<0.0284<0.0372<0.0412<0.0353<0.0332<0.0420<0.0551<0.0411<0.0602<0.0475<0.0306<0.0697<0.0343<0.0645<0.0425<0.03 10<0.0592<0.0 180<0.0650<0.0581<0.0332<0.0500<0.0614<0.240<0.0399<0.0132<0.0533<0.0332<0.0482<0.0260 <0.0511 <0.0311 <0.0452<0.0429 <0.0306 <0.0672 <0.0248<0.0339 <0.0691 <0.0239 <0.0431<0.0221 <0.0672 <0.0404 <0.0696<0.0264 <0.0594 <0.0227 <0.0589<0.0338 <0.0335 <0.0278 <0.0562<0.0299 <0.0677 <0.0394 <0.0381<0.0342 <0.0369 <0.0541 <0.0479<0.0427 <0.0461 <0.0222 <0.0408<0.0072 <0.0559 <0.0293 <0.0367<0.0267 <0.0514 <0.0316 <0.0595<0.0436 <0.0478 <0.0465 <0.0408<0.0317 <0.0179 <0.0538 <0.0303<0.0324 <0.0359 <0.0294<0.0592 <0.0232 <0.0514<0.0336 <0.0599 <0.0265<0.0338 <0.0542 <0.0262<0.0312 <0.0588 <0.0219<0.0339 <0.0444 <0.0341<0.0337 <0.0647 <0.0394<0.0455 <0.0362 <0.0685<0.0250 <0.0386 <0.0312<0.0247 <0.0564 <0.0295<0.0347 <0.0528 <0.0223<0.0233 <0.0334 <0.0221<0.0590 <0.0489 <0.0240PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201432 TABLE 8.6 VEGETATION ODCM required samples denoted by *units are pCi/kg, wetDATECOLLECTED

<60 <60Cs-1-131 134<80Cs-137LOCATIONTYPELOCALRESIDENCE (Site #47)*NONEAVAILABLE COMMERCIAL FARM(Site #62)*GreenCabbageGreenCabbageGreenCabbageGreenCabbageRedCabbageGreenCabbageGreenCabbageGreenCabbageGreenCabbage16-Jan- 1413-Feb-14 13-Mar-14 09-Apr-14 09-Apr- 1408-May-14 17-Jul-14 16-Oct- 1414-Nov- 1412-Dec- 14<53<58<47<59<45<38None<60<45<45<52 <60<51 <66<57 <62<55 <67<42 <73<28 <32Available

<43 <57<56 <47<59 <56PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201433 TABLE 8.7 MILKODCM required samples denoted by *units are pCi/liter SAMPLELOCATIONDATECOLLECTED

<1 <15 <181-131 Cs-134 Cs-137<60 <15Ba-140 La-140Local ResidentGoats(Site #51)*16-Jan- 1427-Feb- 1428-Mar-14 17-Apr-14 22-May- 1409-Jun-14 17-Jul-14 13-Aug-14 18-Sep- 1416-Oct- 1420-Nov- 1414-Dec- 14*No milk available due to small quantity*No milk available due to small quantity*No milk available due to small quantity<1.00 <0.84 <0.96 <3.28 <0.99<1.00 <0.85 <0.99 <3.5014 <0.99<1.00 <0.84 <0.95 <3.34 <1.01<1.00 <0.82 <0.94 <3.26 <0.95<1.00 <0.85 <0.98 <3.41 <1.06<1.00 <0.79 <0.92 <3.38 <0.98<1.00 <0.80 <0.91 <3.28 <1.01<1.00 <0.81 <0.94 <3.27 <0.97<1.00 <0.80 <0.94 <3.29 <1.03Local ResidentGoats(Site #53)*16-Jan- 1427-Feb- 1428-Mar-14 24-Apr- 1415-May-14 26-Jun-14 24-Jul- 1428-Aug- 1426-Sep- 1423-Oct-14 20-Nov- 1414-Dec-14

<1.00<1.00<1.00<1.00<1.00<1.00<1.00<1.00<1.00<1.00<1.00<0.82<0.83<0.81<0.86<0.83<0.85<0.86<0.83<0.83<0.80<0.78<0.94<0.95<0.95<0.98<0.98<0.97<1.00<0.97<0.98<0.91<0.93<3.31<3.33<3.35<3.35<3.37<3.44<1.39<3.36<3.33<3.37<3.38<0.98<1.01<1.00<0.95<1.02<0.99<1.02<1.02<0.98<0.93<0.98*No milk available due to small quantityLocal ResidentGoats(Site #54)16-Jan- 1413-Feb-14 13-Mar-14 09-Apr- 1408-May-14 12-Jun-14 10-Jul- 1407-Aug- 1410-Sep- 1409-Oct- 1405-Nov- 1414-Dec- 14<1.00<1.00<1.00<1.00<1.00<1.00<1.00<1.00<1.00<1.00<1.00<1.00<0.84<0.80<0.81<0.84<0.82<0.84<0.79<0.99<0.87<0.82<0.84<0.82<0.97<0.94<0.93<0.98<0.96<0.98<0.94<1.08<1.02<0.94<1.00<0.97<3.38<3.27<3.32<3.37<3.31<3.33<3.28<3.65<3.46<3.34<3.44<3.44<1.01<0.97<1.00<0.97<1.01<0.96<0.93<1.07<1.05<1.00<1.00<0.96PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201434 TABLE 8.8 DRINKING WATERODCM required samples denoted by *units are pCi/liter SAMPLE IMONTH <15 <15 <30 <15 <30 <15 <30 <15 <15Mn- Co- Fe- Co- Zn- Nb- Zr- I- Cs-ENDPOINT 54 58 59 60 65 95 95 131 134<18Cs-137<2000<60 <15 QtrlyBa- La-140 140 Tritium<4.0Gross BetaLOCATIONLOCALRESIDENCE (Site #48) *28-Jan-14

<12 <13 <28 <12 <25 <11 <17 <10 <1224-Feb-14

<12 <11 <24 <12 <21 <13 <20 <10 <1325-Mar-14

<12 <12 <27 <11 <25 <12 <19 <11 <1129-Apr-14

<12 <12 <24 <13 <24 <12 <21 <10 <1327-May-14

<12 <10 <25 <14 <24 <12 <20 <9 <924-Jun-14

<12 <13 <29 <12 <27 <12 <20 <10 <1129-Jul-14

<14 <11 <26 <15 <25 <11 <16 <12 <1026-Aug-14

<10 <10 <19 <11 <26 <11 <18 <9 <1030-Sep-14

<13 <10 <23 <9 <21 <15 <22 <12 <1428-Oct-14

<11 <12 <21 <15 <30 <14 <22 <14 <1224-Nov-14

<12 <11 <20 <11 <22 <11 <22 <11 <1129-Dec-14

<10 <12 <24 <13 <25 <11 <20 <10 <10<9<12<12<12<12<12<10<12<15<13<12<12<38<39<40<36<37<38<38<37<44<45<34<40<14<15<15<15<15<15<13<15<14<14<15<15<3.29<2.15<335 <1.95<2.05<3.18<327 3.31 +/- 1.974.07 +/- 2.04<3.74<331 <3.79<3.654.85 +/- 2.03<333 4.27 +/- 2.28LOCALRESIDENCE (Site #55)28-Jan-14

<12 <11 <26 <15 <22 <13 <20 <13 <1124-Feb-14

<10 <8 <19 <10 <18 <9 <15 <9 <925-Mar-14

<10 <9 <19 <9 <26 <11 <16 <9 <929-Apr-14

<13 <12 <28 <15 <23 <12 <20 <11 <1027-May-14

<10 <11 <25 <15 <24 <9 <17 <11 <1024-Jun-14

<13 <12 <25 <13 <18 <12 <20 <11 <1129-Jul-14

<12 <12 <24 <11 <30 <15 <21 <13 <1126-Aug-14

<14 <11 <25 <14 <27 <14 <20 <12 <1130-Sep-14

<12 <9 <19 <13 <22 <10 <19 <10 <1028-Oct-14

<13 <14 <19 <12 <24 <15 <24 <11 <1225-Nov-14

<11 <8 <20 <12 <25 <9 <17 <10 <830-Dec-14

<11 <11 <21 <14 <28 <13 <22 <9 <11<13 <43 <14 6.5 +/- 1.7<10 <28 <12 4.05 +/- 1.59<12 <36 <15 <335 4.35 +/- 1.52<10 <35 <14 6.19 +/- 1.65<11 <38 <13 3.04 +/- 1.39<13 <42 <15 <324 6.58 +/- 1.56<14 <41 <8 3.63 +/-1.44<13 <41 <15 3.36 +/-1.44<11 <35 <15 <332 2.72 +/- 1.52<11 <55 <15 3.49 +/- 1.63<10 <36 <15 5.98 +/- 1.52<12 <36 <14 <334 3.55 +/- 1.63PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201435 TABLE 8.8 DRINKING WATERODCM required samples denoted byunits are pCi/liter SAMPLELOCATIONMONTH <15 <15 <30 <15 <30 <15 <30 <15 <15Mn- Co- Fe- Co- Zn- Nb- Zr- I- Cs-ENDPOINT 54 58 59 60 65 95 95 131 134<2000Qtrly<18 <60 <15Cs- Ba- La-137 140 140<4.0Tritium Gross BetaLOCALRESIDENCE (Site #46) *28-Jan-14

<9 <13 <23 <14 <22 <12 <17 <10 <1024-Feb-14

<13 <11 <21 <14 <23 <13 <19 <12 <1125-Mar-14

<10 <10 <20 <12 <25 <10 <19 <10 <929-Apr-14

<13 <11 <23 <11 <28 <12 <24 <12 <1127-May-14

<11 <12 <28 <8 <24 <13 <17 <11 <1124-Jun-14

<14 <10 <26 <13 <27 <12 <24 <11 <829-Jul-14

<15 <13 <27 <14 <28 <14 <26 <13 <1126-Aug-14

<13 <11 <16 <1H <26 <13 <23 <13 <1I30-Sep-14

<13 <11 <19 <10 <27 <12 <30 <13 <1028-Oct-14

<9 <11 <29 <13 <30 <12 <19 <12 <1125-Nov-14

<11 <9 <19 <11 <20 <11 <18 <10 <1030-Dec-14

<13 <12 <26 <14 <25 <12 <22 <11 <13<11 <37<13 <37<10 <36<13 <44<12 <46<13<15<14<12<15<339<14 <42 <15 <3242.1 +/- 1.3<1.362.89 +/- 1.353.29 +/- 1.42<1.973.67 +/- 1.363.62 +/- 1.39<2.35<2.26<2.374.78 +/- 1.372.66 +/- 1.49<15 <47<1! <37<13 <35<12 <38<9 <36<13 <44<15<15<15<13<15<15<335<332LOCALRESIDENCE (Site #49) *28-Jan-14

<9 <9 <16 <10 <21 <10 <18 <9 <924-Feb-14

<9 <10 <18 <15 <22 <12 <18 <10 <1025-Mar-14

<13 <13 <23 <14 <30 <14 <20 <12 <1129-Apr-14

<11 <12 <23 <15 <28 <13 <20 <11 <1227-May-14

<13 <11 <26 <11 <25 <11 <18 <10 <1024-Jun-14

<10 <10 <20 <9 <17 <8 <15 <8 <929-Jul-14

<12 <14 <26 <12 <24 <11 <20 <12 <1226-Aug-14

<11 <13 <30 <13 <30 <12 <25 <11 <1030-Sep-14

<8 <8 <16 <8 <15 <8 <15 <9 <828-Oct-14

<15 <12 <25 <14 <22 <13 <19 <10 <1025-Nov-14

<11 <13 <21 <14 <27 <12 <20 <13 <1130-Dec-14

<12 <13 <19 <13 <20 <10 <18 <11 <11<9 <30<12 <32<14 <49<13 <31<11 <40<11 <27<13 <44<13 <45<10 <33<13 <44<12 <44<11 <42<15<13<12<15<15<15<15<12<12<13<15<15<340<324<334<3352.1 +/- 1.3<1.28<1.22<1.31<1.972.20 +/- 1.272.92 +/- 1.34<2.32<2.25<2.391.98 +/- 1.22<2.25PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201436 TABLE 8.9 GROUNDWATER ODCM required samples denoted by *units are pCi/liter SAMPLEDATE <15 <15 <30 <15 <30 <15 <30 <15 <15 <18Mn- Co- Fe- Co- Zn- Nb- Zr- I- Cs- Cs-<60Ba-<15La-<2000LOCATION COLLECTED 54 58 59 60 65 95 95 131 134 137 140 140 Tritium28-Jan-14

<9 <10 <24 <11 <22 <12 <17 <11 <9 <9 <35 <15 <345WELL27ddc 29-Apr-14

<11 <9 <22 <11 <25 <13 <18 <11 <10 <10 <37 <15 <344(Site #57)* 29-Jul-14

<12 <11 <20 <10 <22 <12 <18 <12 <11 <11 <43 <15 <31928-Oct-14

<12 <11 <21 <13 <24 <11 <19 <11 <10 <11 <39 <15 <32328-Jan-14

<12 <10 <18 <13 <21 <13 <16 <14 <9<9 <43 <12 <348WELL34abb(Site #58)*29-Apr- 1429-Jul- 1428-Oct-14

<11 <10 <20 <12 <22 <11 <16 <9 <9 <10 <33 <15<10 <10 <26 <15 <25 <11 <19 <11 <11 <13 <44 <15<10 <10 <20 <11 <23 <12 <20 <10 <10 <10 <36 <15<344<322<322PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201437 TABLE 8.10 SURFACE WATERODCM required samples denoted by *units are pCi/liter SAMPLE DATE <15 <15 <30 <15 <30 <15 <30 <15 <15 <18 <60 <15 <3000COLLECTED Mn- Co- Fe- Co- Zn- Nb- Zr- Cs- Cs- Ba- La-LOCATION 54 58 59 60 65 95 95 1-131 134 137 140 140 Tritium45 ACRE 28-Jan-14

<12 <12 <24 <11 <24 <11 <20 23 + 10 <11 <12 <40 <14 <353RESERVOIR 29-Apr-14

<11 <11 <19 <12 <20 <10 <16 15 + 10 <10 <11 <38 <14 <348(Site #61)* 29-Jul-14

<10 <10 <23 <13 <28 <14 <16 14 +/- 9 <10 <11 <48 <13 <32328-Oct-14 No Sample due to liner inspection 85 ACRE 28-Jan-14

<12 <9 <18 <13 <25 <11 <18 <11 <9 <10 <37 <15 <352RESERVOIR 29-Apr-14

<13 <12 <20 <15 <19 <9 <20 <14 <9 <10 <39 <15 <349(Site #60)* 29-Jul-14

<13 <10 <23 <13 <23 <10 <20 18 +/- 10 <10 <12 <45 <15 <32528-Oct-14

<10 <10 <16 <15 <20 <13 <18 <14 <10 <12 <38 <15 <327EVAPPOND1 28-Jan-14

<11 <11 <24 <14 <24 <12 <19 42 +/- 15 <10 <12 <40 <15 2640+/- 244(Site #59)

• 29-Apr-14

<11 <12 <24 <14 <22 <10 <16 <9 <10 <12 <35 <13 1866 +/- 233CELL1A 29-Jul-14

<10 <11 <22 <14 <22 <10 <21 <10 <11 <11 <33 <15 1738 +/- 22228-Oct-14

<9 <11 <25 <15 <19 <8 <16 <10 <10 <12 <34 <15 1396 +/- 226CELL1B 28-Jan-14

<12 <12 <21 <12 <30 <11 <18 <9 <11 <11 <39 <14 1280 +/- 22129-Apr-14

<11 <12 <26 <13 <27 <12 <18 14+/-9 <10 <11 <40 <15 777+/-21529-Jul-14

<12 <11 <22 <14 <25 <11 <21 <8 <11 <12 <38 <15 1190 +/- 21228-Oct-14

<9 <9 <18 <11 <24 <11 <18 <8 <9 <12 <31 <10 781 +/- 217CELLIC 28-Jan-14

<9 <11 <24 <15 <29 <11 <21 <10 <10 <12 <35 <13 797 +/- 21229-Apr-14

<11 <12 <24 <15 <29 <12 <20 <10 <10 <10 <36 <13 806 +/- 21729-Jul-14

<12 <11 <29 <15 <29 <12 <21 <11 <11 <14 <38 <10 687 +/- 20428-Oct-14

<12 <10 <22 <12 <30 <10 <18 <9 <9 <12 <41 <13 395 +/- 209PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201438 TABLE 8.10 SURFACE WATEREVAP POND 2(Site #63) *CELL 2ACELL2B28-Jan- 1429-Apr- 1429-Jul-14 28-Oct- 14ODCM required samples denoted by *units are pCi/liter

<13 <12 <22 <14 <23 <13 <20 <12<13 <13 <27 <15 <25 <14 <20 <10<11 <11 <26 <15 <26 <12 <21 <19 +/- 11<10 <10 <23 <11 <26 <10 <17 <10<11 <15 <50 <15<11 <12 <38 <14<9 <11 <33 <15<9 <11 <34 <15727 +/- 206658 +/- 213929 +/- 208698 +/- 21628-Jan- 1429-Apr-14 29-Jul-14 28-Oct-14

<12 <9 <27 <10 <27 <13 <19<14 <12 <25 <13 <24 <15 <21<13 <12 <26 <15 <28 <10 <20<11 <10 <22 <15 <22 <12 <19<12<14<10<11<11 <12 <44 <15<11 <12 <51 <13<10 <14 <40 <14<9 <11 <35 <12718 +/- 209798 +/- 216817 +/- 206422 +/- 211EVAPPOND3 (Site #64) *CELL 3ACELL3B28-Jan-14 29-Apr- 1429-Jul-14 28-Oct- 14<10 <11 <28 <14 <30 <11 <20<12 <11 <26 <13 <30 <11 <20<11 <11 <26 <12 <30 <12 <18<12 <10 <28 <15 <28 <11 <19<12<11<11<11<10 <14 <41 <11<9 <13 <38 <10<9 <13 <32 <11<9 <13 <38 <10695 +/- 211422 +/- 208559 +/- 202438 +/- 21128-Jan- 1429-Apr- 1429-Jul-14 28-Oct- 14<11 <10 <26 <12 <30 <11 <18<11 <11 <25 <11 <30 <11 <18<13 <13 <24 <13 <27 <11 <20<10 <11 <27 <13 <30 <10 <19<10<10<10<10<8 <12 <38 <13<9 <12 <37 <13<11 <15 <37 <15<9 <13 <36 <12954 +/- 214656 +/- 213677 +/- 204438 +/- 212PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201439 TABLE 8.10 SURFACE WATERODCM required samples denoted by *units are pCi/liter DATECOLLECTED Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 Tritium**

SAMPLELOCATION7-Jan- 1414-Jan-14 21-Jan-14 28-Jan- 144-Feb- 141 1-Feb-1417-Feb-14 24-Feb- 144-Mar-141 1-Mar-1418-Mar-14 25-Mar-14

<11 <10 <30 <13 <22 <15 <17 15 +/- 11 <12<13 <15 <22 <13 <30 <14 <21 42 +/- 12 <9<10 <11 <23 <12 <22 <13 <17 39 +/- 10 <10<11 <i1 <23 <13 <25 <13 <17 53 +/- 15 <10<9 <8 <19 <10 <23 <10 <17 26 +/-8 <9<10 <12 <25 <15 <28 <9 <19 47 +/-14 <10<13 <11 <25 <13 <23 <9 <16 59 +/-14 <12<13 <9 <17 <15 <15 <9 <25 22 +/-10 <10<11 <10 <26 <9 <20 <11 <22 38 +/-13 <12<12 <13 <30 <14 <30 <14 <19 43 +/-14 <13<12 <10 <22 <13 <30 <9 <18 50+/- 12 <10<13 <13 <23 <9 <27 <12 <21 30+/- 13 <11<10<14<11<12<10<11<12<15<14<12<10<12<47<46<34<36<33<36<44<44<36<42<33<44<14<13<15<15<13<14<13<15<15<11<10<15<356<342<351WRFINFLUENT1-Apr-148-Apr-1415-Apr-14 22-Apr-14 29-Apr- 146-May-1413-May-14 20-May- 1427-May-14 3-Jun-1410-Jun-14 16-Jun-14 24-Jun- 14<11 <13 <22 <12 <30 <12 <21 40 +/- 12 <11<9 <11 <24 <15 <26 <11 <18 41 +/- 15 <9WRF Out of Service<12 <14 <22 <12 <23 <13 <23 42 +/- 12 <10<9 <10 <21 <11 <23 <11 <16 16 +/- 10 <10<12 <10 <22 <14 <20 <12 <19 19 +/- 9 <11<12 <10 <22 <15 <28 <10 <20 44 +/-12 <9<12 <11 <27 <12 <28 <12 <20 17 +/- 9 <10<12 <11 <22 <11 <27 <13 <18 15 +/- 9 <9<11 <12 <24 <15 <28 <12 <21 9 +/- 9 <11<10 <9 <20 <12 <22 <10 <17 36 +/- 10 <10<13 <11 <28 <9 <24 <12 <17 41 +/- 13 <10<10 <9 <19 <10 <22 <9 <19 17 +/- 9 <8<12<11<14<9<12<13<12<14<10<9<12<10<41<36<39<35<34<42<41<39<36<29<43<34<13<12<15<12<11<13<13<15<14<15<15<12<354<339<3351-Jul-148-Jul-1415-Jul-14 22-Jul-14

<12 <11 <20 <12 <18 <11 <18 13 +/- 10 <9<10 <9 <20 <12 <20 <9 <13 <10 <9<11 <13 <27 <15 <28 <13 <18 11 +/-9 <13<9 <10 <22 <14 <23 <11 <16 20+/- 12 <8<10<9<12<9<34<31<37<36<15<15<11<15PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201440 TABLE 8.10 SURFACE WATERODCM required samples denoted by *units are pCi/liter SAMPLELOCATIONDATE <15 <15 <30 <15 <30Mn- Co- Fe- Co- Zn-54 58 59 60 65<15Nb-95<30Zr-95<151-131<15Cs-134<18 <60 <15 <3000Cs- Ba- La- Tritium137 140 140 **4.29-Jul-14 5-Aug-1412-Aug-14 19-Aug-14 26-Aug-14 2-Sep-149-Sep-1416-Sep-14 23-Sep-14 30-Sep-14

<10 <10 <22 <13 <30<11 <11 <21 <9 <26<11 <12 <23 <15 <27<11 <9 <24 <12 <22<15 <13 <28 <13 <29<15 <14 <30 <14 <28<11 <11 <20 <15 <27<11 <10 <23 <12 <24<11 <12 <18 <12 <29<10 <10 <20 <10 <24<10<11<11<14<14<11<10<9<13<10<18<21<15<18<24<17<20<17<21<2013 948+ 1222 1114 +/- 1048+ 1230+ 1025 108+/-722+ 1215 9<9<10<10<9<15<12<9<9<12<10<10<9<14<13<15<17<11<9<11<11<38<36<36<41<52<48<38<32<43<33<14<15<15<11<12<13<12<15<13<15<332<340<342WRFINFLUENT7-Oct-1414-Oct-14 2 1-Oct- 1428-Oct- 144-Nov- 1412-Nov- 1418-Nov-14 24-Nov- 142-Dec- 149-Dec- 1416-Dec- 1423-Dec-14 29-Dec- 14<10 <12 <24 <12 <20<14 <13 <25 <15 <29<12 <10 <29 <9 <24<15 <9 <27 <13 <28<13 <9 <25 <13 <30<14 <11 <24 <13 <21<13 <13 <27 <11 <19<11 <10 <23 <15 <29<11 <9 <20 <9 <27<11 <10 <21 <14 <24<!1 <il <26 <15 <23<12 <13 <24 <11 <30<9<13<11<9<13<10<13<10<12<12<12<12<15 11 +/- 11 <10<20 16 +/- 11 <11No Sample available due to WRF outage<18 <12 <11<22 25 +/- 13 <11<20 14 +/- 11 <11<20 17 +/- 11 <12<25 25 +/- 17 <11<21 20 +/- 11 <11<16 <12 <10<18 <11 <10<18 33 +/- 14 <11<17 30 +/- 14 <11<10 <29 <10<13 <50 <11<10<13<13<10<9<12<13<10<12<13<32<44<43<38<35<41<38<36<39<51<12<14<11<14<15<14<15<15<14<14<333<327<348PVNGS ANNUAL RADIOLOGICAL E~NVIRONMENTIAL OPRIZATIING REPOTU -2141 TABLE 8.10 SURFACE WATERODCM required samples denoted by *units are pCi/liter SAMPLELOCATIONDATECOLLECTED Mn- Co- Fe-54 58 59Co- Zn- Nb- Zr- I- Cs- Cs- Ba- La-60 65 95 95 131 134 137 140 140Tritium7-Jan- 1414-Jan- 1421-Jan-14 28-Jan- 144-Feb-141 -Feb- 1418-Feb-14 24-Feb- 144-Mar- 141 -Mar- 1418-Mar-14 25-Mar- 14<11 <10 <22 <10 <25 <12 <18 <10 <9 <11 <36 <15<11 <11 <23 <14 <28 <13 <24 <12 <14 <15*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty<11 <11 <19 <14 <30 <8 <20 <10 <12 <14<10 <9 <21 <12 <24 <10 <16 <8 <10 <10<10 <12 <24 <14 <15 <11 <18 <10 <10 <11<8 <8 <18 <9 <17 <8 <14 <8 <8 <8<46 <13<357534 +/- 205<354<369<320<362<37<39<34<30<14<15<12<11SEDIMENTATION BASIN #21-Apr-148-Apr- 1415-Apr- 1422-Apr-14 29-Apr- 146-May-1413-May-14 20-May-14 27-May-14 3-Jun-1410-Jun- 1416-Jun-14 24-Jun- 14*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was emptyPVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT- 201442 TABLE 8.10 SURFACE WATERODCM required samples denoted by *units are pCi/liter SAMPLELOCATIONDATECOLLECTED Mn- Co- Fe- Co- Zn- Nb- Zr- I-54 58 59 60 65 95 95 131Cs- Cs- Ba- La-134 137 140 140Tritium1-Jul-14*No samples available, basin was empty8-Jul-1415-Jul-14 22-Jut- 1429-Jul- 145-Aug- 1412-Aug-14 19-Aug-14 26-Aug- 142-Sep-149-Sep-1416-Sep-14 23-Sep-14 30-Sep-14

• No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty<11 <8 <24 <13 <21 <11 <19 <10 <10 <11*No samples available, basin was empty<14 <11 <23 <11 <24 <10 <20 <10 <10 <12<12 <9 <26 <9 <26 <11 <23 <10 <9 <13*No samples available, basin was empty<11 <11 <21 <13 <26 <12 <21 <11 <10 <10<34 <15 391 +/- 216<39 <14 <348<32 <13 <342<44 <15 <350SEDIMENTATION BASIN #27-Oct- 1414-Oct-14 21-Oct-14 28-Oct-14 4-Nov- 1412-Nov-14 18-Nov- 1424-Nov- 142-Dec- 149-Dec- 1416-Dec-14 22-Dec- 1429-Dec-14

<11 <11 <21 <12 <19 <10 <20 <9 <9 <9*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No samples available, basin was empty*No sam1les available, basin was empty<37 <15<349PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201443 TABLE 8.11 SLUDGE/SEDIMENT ODCM required samples denoted by *units are pCi/kg, wetSAMPLELOCATIONDATECOLLECTED

<6,0001-131<150Cs-134<180Cs-137In-Ill4WRFCENTRIFUGE WASTE SLUDGE7-Jan-1414-Jan- 1421 -Jan- 1428-Jan-14 4-Feb-141 1-Feb-1417-Feb-14 24-Feb- 144-Mar- 141 1-Mar-1418-Mar-14 25-Mar- 141-Apr-148-Apr-1415-Apr-14 22-Apr- 1429-Apr- 146-May- 1413-May-14 20-May- 1427-May-14 3-Jun- 1410-Jun-14 16-Jun- 1424-Jun- 141-Jul- 138-Jul-1415-Jul-14 22-Jul-14 29-Jul-14 5-Aug-1412-Aug-14 19-Aug-14 272 +/- 188520 +/- 171514 +/- 166593 +/- 181622 +/- 167555 +/- 214843 +/- 206616 +/- 199762 +/- 206770 +/- 181457 +/- 170764 +/- 173534 +/- 182748 +/- 186WRF85 +/- 95267 +/- 121397 +/- 152528 +/- 145673 +/- 220688 +/- 162481 +/- 159243 +/- 139625 +/- 193764 +/- 196595 +/- 202500 +/- 134202 +/- 156333 +/- 202None Detecti641 +/- 185609 +/- 217592 +/- 179<143<136<136<143<113<138<144<148<149<143<142<129<128<149Out of Service<147<104<145<145<66<90<148<120<143<140<123<104<107<149-d <124<149<142<148<153<165<160<147<116<168<150<161<112<142<175<173<152<145<138<91<172<115<176<129<149<178<121<167<170<77<162<160<165<114<160<157139 +/- 71PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201444 TABLE 8.11 SLUDGE/SEDIMENT SLUDGE/SEDIMENT ODCM required samples denoted by *units are pCi/kg, wetSAMPLELOCATIONDATECOLLECTED 1-131Cs-134Cs-137 In-IllWRFCENTRIFUGE WASTESLUDGE26-Aug-14 2-Sep-149-Sep-1416-Sep-14 23-Sep- 1330-Sep-14 7-Oct-1414-Oct-14 21 -Oct- 1428-Oct-14 4-Nov-1412-Nov-14 18-Nov-14 24-Nov-14 2-Dec-149-Dec-1416-Dec-14 23-Dec- 1429-Dec-14 615 + 193828 + 226652 +/- 178535 + 217475 +/- 147495 + 157367 +/- 166487 +/- 141359+ 114NoneDetected463 +/- 135489 +/- 192580 +/- 167557 + 179624 + 204575 +/- 184289++/- 112374 +/- 188<150<146<135<148<95<132<148<95WRF Out of<64<117<119<148<84<137<122<140<86<144<120<147<179<164<134<164<100<156Service<117<168<100<149<30<170<178<164<31<14318-Nov-14 NoneDetected<1144 +11SEDIMENTATION BASIN #2PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201445 TABLE 8.11 SLUDGE/SEDIMENT COOLING TOWER SLUDGEUNIT APPROXIMATE ISOTOPE ACTIVITY RANGE SAMPLE TYPECYCLE VOLUME (yd3) (pCi/g)AllU2R18 351 principal

<MDA Towers/canal sludgegammaemittersAllUIR18 369 principal

<MDA Towers/canal sludgegammaemittersPVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201446 TABLE 8.12 HARD-TO-DETECT RADIONUCLIDE RESULTSUnits are pCi/liter Sample LocationUnit I (outside RCA)Unit 2 (inside RCA)Unit 3 (inside RCA)Well numberAPP-12HOBHIISample Date11/10/2014 11/10/2014 11/10/2014 C-14<139<138<144Fe-55<94.0<97.5<97.7Ni-63<3.68<3.32<3.59Sr-90<2.00<1.92<1.47PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201447 FIGURE 8.1 GROSS BETA IN AIR, 11-2nd Quarter0.0700.0600.050U0.0400.030--- Site 4Site 6A*Site 7ASite 14A*-Site 15*-Site 17A--4-Site 21-'---Site 29*-Site 35-Site 40*Mean0.0200.0100.000Zt~~ Cq 0A , r- *'qt'.0 c N-PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201448 FIGURE 8.2 GROSS BETA IN AIR, 3Pd-4th Quarter0.0500.0450.0400.0350.030-"- 0.025U0.0200.0150.0100.005s*Site 4--- Site 6A*Site 7ASite 14A*-Site 15*-Site 17A-4-Site 21----Site 29*-Site 35Site 40*Mean0.000-0 00 Ifl a,' 'S' Z.J ý-~ ~ ~ .o ('4 0 (~~~- 'It 00 (4- (4 e ' ' ' 'PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201449 FIGURE 8.3 HISTORICAL GROSS BETA IN AIR (WEEKLY SYSTEM AVERAGES)

Gross Beta in Air 2004-2014 (weekly average)1.000Elevated due to Fukushima-Daiichi releasesU0.0.1000.0100 0I I-~0000009UON 0 -o ---I I I Io u u uU U U Uc5c%1UqU~PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201450 FIGURE 8.4 HISTORICAL GROSS BETA IN AIR (ANNUAL SITE TO SITE COMPARISONS)

COMPARED TO PRE-OP0.0500.040-Site 4---Site 6A.0.030CL --Site 14A-Site 15-Site 17A0.020 .Site 21-Site 29Site 350.010.Site 4000000CL-4w.0L0UO00'00000000000-401-4-40r4r4-40ml--019tSite 7A is not included since the location changed since the pre-operational periodThe 2011 annual average values are higher due to the Fukushima-Daiichi releases.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201451 FIGURE 8.5 GROSS BETA IN DRINKING WATERUnits are pCi/L7 -Ik4AxU654//S-*-Site

1. 46-4-Site #4843210-0-Site #49--*-Site #55to,40NOTES: MDA values plotted as activity (e.g. <2.3 is plotted as 2.3)The action level is 30 pCi/liter PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201452 FIGURE 8.6 EVAPORATION POND TRITIUM ACTIVITY PRE-OP -20082500200015001000500r, W~ M " a% 0=0 -4 .-1 Nj " M M ' U, It l M "0 "ý0 t-. r- W W C7 0 1 0 ) 00 '-i -4 N N M M' It' 10 Mf Mn 10 "0o t- r- W M0 00 00 0 0 0< 0 0" 0"<"0 "0"0"0 0 0" 0" 0" 0" 0" 0" 0" 0"< 0000000<<<00<0<0000 PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201453 FIGURE 8.7 EVAPORATION POND TRITIUM ACTIVITY 2009-2014 3000-- -E -A P P O N D 1 A2500---- EVAP POND 1B U...... EVAP POND iCEVAP POND 2A a2000-EVAP POND 2B I*IEVAP POND 3A %1500 EVAP POND 3B %1000-I5000 IS II :: ",*I I14ý Sý 1ý1PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201454 FIGURE 8.8 SEDIMENTATION BASIN 2 Cs-1372502092001501005023867 70 63 60 60 6640 47 40 46 44I <MDA <MDA1976 1984 1990 1992 1993 1994 1995 1996 1997 1998 2001 2002 2003 2005 2008 2014onsite onsitesoil avg. soil avg.(Sedimentation Basin #2 accepts site storm runoff, no other gamma emitters present)PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201455

9. Thermoluminescent Dosimeter (TLD) Results and DataThe environmental TLD used at PVNGS is the Panasonic Model 812 Dosimeter.

The Model 812is a multi-element dosimeter combining two elements of lithium borate and two elements ofcalcium sulfate under various filters.TLDs were placed in fifty locations from one to thirty-five miles from the PVNGS. TLD locations are shown in Figures 2.1 and 2.2 and are described in Table 9.1. TLD results for 2014 arepresented in Table 9.2. Historical environmental gamma radiation results for 1985 through 2014are presented in graphical form on Figure 9.1 (excluding transit control TLD #45).Figure 9.2 depicts the environmental TLD results from 2014 as compared to the pre-operational TLD results (excluding sites #41 and #43, as they were deleted and later assigned to a newlocation, and #46-50, as they had no pre-op TLD at the location for comparison).

The site to sitecomparisons indicate a direct correlation with respect to pre-operational results.

It is evident thatthe offsite dose, as measured by TLDs, has not changed since Palo Verde became operational.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201456 TABLE 9.1 TLD SITE LOCATIONS (distances and directions are relative to Unit 2 in miles)TLD SITE123456*7891011121314151617181920212223242526272829303132333435363738394041424344*LOCATIONE30ENE24E21E16ESE 1ISSE31SE7SSE4S5SE5ESE5E5NINNE2NE2ENE2E2ESE2SE2SSE2S3SSW3W5SW4WSW5SSW4SWIWSWIW1WNW1NW1NNWINW4NNW5NNW8N5NNE5NE5ENE5N2ESE3N8NE5ENE35LOCATION DESCRIPTION GoodyearScott-Libby SchoolLiberty SchoolBuckeyePalo Verde SchoolAPS Gila Bend substation Old US 80 and Arlington School RdSouthern Pacific Pipeline Rd.Southern Pacific Pipeline Rd.355th Ave. and Elliot Rd.339th Ave. and Dobbins Rd.339th Ave. and Buckeye-Salome Rd.N site boundaryNNE site boundaryNE site boundary, WRF access roadENE site boundaryE site boundaryESE site boundarySE site boundarySSE site boundaryS site boundarySSW site boundaryN of Elliot RdN of Elliot RdN of Elliot RdS of Elliot RdSW site boundaryWSW site boundaryW site boundaryWNW site boundaryNW site boundaryNNW site boundaryS of Buckeye Rd395th Ave. and Van Buren St.TonopahWintersburg Rd. and Van Buren St.363rd Ave. and Van Buren St.355th Ave. and Buckeye Rd.343d Ave. N of Broadway Rd.Wintersburg Arlington SchoolRuth Fisher SchoolWinters Well SchoolEl MiragePVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201457 TABLE 9.1 TLD SITE LOCATIONS (distances and directions are relative to Unit 2 in miles)TLD SITE45**4647484950LOCATIONOnsiteENE30E35E24ENE 11WNW5LOCATION DESCRIPTION Central Laboratory (lead pig)Litchfield Park SchoolLittleton SchoolJackrabbit TrailPalo Verde Rd.S of Buckeye-Salome Rd.* Site #6 and site #44 are the control locations.

• • Site #45 is the transit control TLD (stored in lead pig).PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201458 TABLE 9.2 ENVIRONMENTAL TLD RESULTSUnits are mRem/std qtrTLD Site # 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Average1 27.4 25.1 23.4 25.6 25.42 24.1 23.7 21.7 22.6 23.03 26.6 24.3 23.0 23.4 24.34 27.3 24.8 23.8 25.1 25.35 23.2 23.6 20.7 22.0 22.46 (control) 29.7 27.4 26.4 26.2 27.47 28.4 25.7 23.7 24.6 25.68 25.2 24.9 22.6 23.7 24.19 32.2 27.5 28.4 30.1 29.610 25.0 25.1 22.0 23.9 24.011 26.3 27.0 24.0 24.6 25.512 25.8 23.5 21.8 22.6 23.413 27.9 26.3 26.2 25.6 26.514 26.1 26.1 25.1 25.2 25.615 26.1 25.4 21.4 24.1 24.316 23.8 22.6 21.4 22.5 22.617 26.4 25.9 23.5 24.6 25.118 25.3 24.2 21.4 23.6 23.619 26.2 26.2 24.2 25.4 25.520 27.0 24.5 23.4 23.8 24.721 27.3 27.0 24.4 25.3 26.022 28.3 26.7 26.5 25.8 26.823 24.0 24.3 23.0 22.4 23.424 25.3 23.2 21.0 23.0 23.125 23.9 23.9 22.4 22.7 23.226 29.3 29.4 26.9 27.3 28.227 28.3 27.1 25.5 26.7 26.928 27.2 27.4 23.5 25.0 25.829 26.4 24.4 24.2 24.7 24.930 28.1 25.9 23.9 26.0 26.031 25.0 22.6 22.6 23.4 23.432 27.9 26.4 24.1 25.4 26.033 28.5 25.6 25.9 26.0 26.534 30.8 28.5 26.9 27.2 28.435 32.9 31.3 31.0 33.2 32.136 28.4 25.1 25.0 26.9 26.437 26.0 25.0 22.7 23.6 24.338 31.7 26.9 26.0 26.9 27.939 26.0 24.5 22.8 25.0 24.640 26.6 24.9 23.1 25.0 24.941 30.0 26.6 25.1 26.2 27.042 29.7 28.6 26.2 26.5 27.843 30.0 28.3 26.1 27.8 28.144 (control) 27.1 25.1 21.7 22.9 24.245 (transit control) 6.6 6.3 5.4 5.6 6.046 24.6 24.1 22.7 22.8 23.647 26.3 23.4 22.1 21.2 23.348 27.0 26.4 21.6 23.7 24.749 24.3 233.8 21.4 21.1 75.250 22.5 20.7 18.5 18.6 20.1PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201459 FIGURE 9.1 NETWORK ENVIRONMENTAL TLD EXPOSURE RATES30.028.026.0L.24.022.020.018.000 0.0 00 00 00 CD M It V) ON r- Ow ONý ON O 0 0 0t 0) 0o 0 0= 0ý -C>- -o? o? o? o? C? T IR T T 1? 9 IR 9 9 9 9 9 9U~~~ ~~ ~~ ~~~~~ 0The 10-year mean value is for the date range 2005-2014.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201460 FIGURE 9.2 ENVIRONMENTAL TLD COMPARISON

-PRE-OPERATIONAL VS 201435 T Control TLDF-3025201510501 3 5 7 9 11 13 15 17 19 21 23 25 27 29 31 33 35 37 39 42 45TLD NumberThe following TLDs are not included on this graph;TLD #41 monitoring location was deleted in June, 2000 due to school closing (this TLD was placed at new school in 2004)TLD #43 monitoring location was deleted in 1994 due to school closing (this TLD was placed at a new school in 2007)TLDs #46-50 are not included since they were not included in the pre-op monitoring programPVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201461

10. Land Use Census10.1. Introduction In accordance with the PVNGS ODCM, Section 6.2, the annual Land Use Census wasperformed in April 2014.Observations were made in each of the 16 meteorological sectors to determine thenearest milking animals, residences, and gardens of greater than 500 square feet. Thiscensus was completed by driving the roads and speaking with residents.

The results of the Land Use Census are presented in Table 10.1 and discussed below.The directions and distances listed are in sectors and miles from the Unit 2 containment.

10.2. Census ResultsNearest ResidentThere was no change in nearest resident status from the previous year. Dosecalculations indicated the highest dose to be 0.178 mRem.Milk AnimalThere was no change in milk animal status from the previous year. Dose calculations indicated the highest dose to be 0.508 mRem.Vegetable GardensThere was no change in nearest garden status. Dose calculations indicated the highestdose to be 0.490 mRem.See Table 10.1 for a summary of the specific results and Table 2.1 for current samplelocations.

Figures 10.1 through 10.3 provide graphs depicting historical calculated doses fornearest residents, nearest milk receptor, and nearest garden receptor locations in eachsector.Differences in calculated doses are the result of many variables, including;

• Changes in receptor locations from year to year (proximity to the power plant)" Changes in local meteorology (wind direction, wind speed, precipitation, temperature)

" Concurrent meteorology at the time of effluent releases" Exposure pathwaysPVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT- 201462 TABLE 10.1 LAND USE CENSUS(Distances and directions are relative to Unit 2 in miles)NEARESTRESIDENTSECTORN 1.55NNE 1.52NEARESTGARDEN3.103.30NEENEEESEF SESSESSWSWF --W SW -WN_NWF_ _ _F-7_F2.162.052.811.95NONENONENONE I[NONENEARESTMILK CHANGEANIMAL CALCULATED DOSE FROM(COW/GOAT)

(mRem) 20133.66 Resident 3.86E-02Garden 2.63E-01Milk 2.07E-01..05 [Resident 7.39E-02Garden 4.90E-01Milk 5.08E-01NONE Resident 1.13E-01 F4.84 Resident 1.13E-01Milk 2.78E-01NONE Resident 8.59E-02NONE Resident 1.7NONE Resident 1.10E-01NONE NANONE NANONE r NA -N3.36NONENONENONE1.390.750.70NONE-0.931.30NONENONENONENONENONEFF--NONE~

NONENONEF-NONEFFFFNONENONENONENONENONENONE[Reesident Resident-IResident NAResidentResident1.47E-018.2013-02 4.87E-023.77E-022.92E-03COMMENTS:

Dose calculations were performed using the GASPAR code and 2014 meteorological data and sourceterm. Dose reported for each location is the total for all three PVNGS Units and is the highestindividual organ dose identified.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201463 FIGURE 10.1 HISTORICAL COMPARISON OF NEAREST RESIDENT DOSE4.OOE-013.50E-01 m3.00E-012.50E-01 "SSW SW WSW W WNW NW NNW0 2010* 2009* 2008* 2007* 2006* 2005L.EE2.OOE-01.11SSW Sý NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNWM ZluUN 2009E2008* 2007* 20060 2005Historical annual average most prevalent wind direction is from the SW, next highest is from the N. This is one reason for the higher dosesassigned to residents in the S sector.Historical annual average least prevalent wind direction is from the SE, next highest is from the ESE. This is one reason for the lowerdoses assigned to residents in the WNW, NW, and NNW sectors.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201464 FIGURE 10.2 HISTORICAL COMPARISON OF NEAREST MILK ANIMAL DOSE1.00E+009.00E-018.00E-01

_ 2014* 20137.00E-01020126.OOE-01 0 20115.OOE-01 0 2010§ý 0 2009E 4.OOE-01L- N 2008E no milk animals identified in these sectors3.00E-01 U 20072.OOE-01 N 20061.OOE-01 02005O.OOE+00N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NWMilk animals include goats and/or cows. Several new milk animals were identified in 2009 that were closer to the power plant than in thepast, resulting in generally higher calculated doses in that calendar year.No milk samples have indicated any plant related radionuclides.

Additionally, milk animals in the desert environment are normally fedstored feed and are not on pasture.

The calculated doses are conservative since they include pastured feed as part of the calculation.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201465 FIGURE 10.3 HISTORICAL COMPARISON OF NEAREST GARDEN DOSEGardens were sporadically identified from year to year. Gardening is not prevalent in the desert environment.

PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201466

11. Summary and Conclusions The conclusions are based on a review of the radio assay results and environmental gammaradiation measurements for the 2014 calendar year. Where possible, the data were compared topre-operational sample data.All sample results for 2014 are presented in Tables 8.1-8.12 and do not include observations ofnaturally occurring radionuclides, with the exception of gross beta in air and gross beta indrinking water. Table 11.1 summarizes the ODCM required samples and is in the formatrequired by the NRC BTP on Environmental Monitoring.

1-131 identified in the Evaporation Ponds, WRF Influent, WRF Centrifuge sludge, andReservoirs is the result of offsite sources and appears in the effluent sewage from Phoenix.

Thelevels of 1-131 detected in these locations are consistent with levels identified in previous years.Tritium concentrations identified in surface water onsite have been attributed to PVNGSpermitted gaseous effluent releases and secondary plant releases.

These concentrations areconsistent with historical values.Environmental radiation levels are consistent with measurements reported in previous Pre-operational and Operational Radiological Environmental annual reports, References 1and 2.There was no measurable radiological impact on the environment in 2014 resulting from theoperation of PVNGS.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201467 TABLE 11.1 ENVIRONMENTAL RADIOLOGICAL MONITORING PROGRAM ANNUAL SUMMARYPalo Verde Nuclear Generating Station Docket Nos. STN 50-528/529/530 Maricopa County, Arizona Calendar Year 2014Medium or Lower Limit All Indicator Location with Highest Annual ControlPathway of Detection Locations Mean Locations Sampled (LLD)(Unit of Type and Total (from Table Mean (f)' Name Mean Mean (f)a Number ofMeasurement)

Number of 6.1) Lff Nonroutine Analyses ReportedPerformed Measurements Range Distance and Range RangeDirection Direct TLD -200 NA 25.2 Site #35 32.1 (4/4) 25.8 (8/8) 0Radiation (188/188)

(mrem/std.

qtr.) 18.5-33.2 8 miles 3300 31.0-33.2 21.7-29.7 Air Particulates Gross Beta -519 0.01 0.031 Site # 7A 0.032 (52/52) 0.033 (52/52) 1(pCi/m3) (467/467) 0.010 -0.066 3 miles 124° 0.014- 0.063 0.017- 0.063Gamma SpecComposite

-40Cs-134 (quarterly) 0.05 <LLD NA <LLD <LLD 0<LLD NA <LLD <LLDCs-137 (quarterly) 0.06 <LLD NA <LLD <LLD 0<LLD NA <LLD <LLDAir Gamma Spec. -Radioiodine 519(pCi/m3) 1-131 0.07 <LLD NA <LLD <LLD 0<LLD NA <LLD <LLDPVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201468 Broadleaf Vegetation (pCi/Kg-wet)

Gamma Spec. -101-131Cs-134Cs-137606080<LLD<LLD<LLDNANANA<LLD<LLD<LLD<LLD<LLD<LLD000Groundwater (pCi/liter)

H-3 -8Gamma Spec. -8Mn-54Fe-59Co-58Co-60Zn-65Zr-95Nb-951-131Cs-134Cs-137Ba-140La-1402000153015153030151515186015<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLDNANANANANANANANANANANANANA<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLDNANANANANANANANANANANANANAGross Beta- 484 3.8 (27/48)2.0-6.6Site #553 miles 21404.5 (11/12)2.7 -6.6NA0PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201469 H-3 -162000 <LLD NA <LLDNA 0Drinking Water(pCi/liter)

Gamma Spec. -48Mn-54Fe-59Co-58Co-60Zn-65Zr-95Nb-951-131Cs-134Cs-137Ba- 140La-140153015153030151515186015<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLDNANANANANANANANANANANANA<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLDNANANANANANANANANANANANA000000000000Milk(pCi/liter)

Gamma Spec. -271-131Cs-134Cs-137Ba-140La- 14015186015<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLDNANANANANANANANA<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD<LLD00000PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201470 Gamma Spec. -30Mn-54Fe-59Co-58Co-60Zn-65Zr-95Nb-9515301515303015<LLD<LLD<LLD<LLD<LLD<LLD<LLDNANANANANANANA<LLD<LLD<LLD<LLD<LLD<LLD<LLDNANANANANANANANA00000000Surface Water(pCi/liter) 1-13115 21(7/35)

Site #5942(1/4)14-42 Onsite 180'42-42Cs-134Cs-137Ba-140La-140H-3 -2015186015<LLD<LLD<LLD<LLDNANANANASite #59Onsite 180'<LLD<LLD<LLD<LLDNANANANA000003000 891 (28/35)422 -26401910 (4/4)1396 -2640NA(a) Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated inparentheses.

(f)NOTE: Miscellaneous samples that are not listed on Tables 2.1 and 9.1 (not ODCM required) are not included on this table.PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201471

12. References

1. Pre-Operational Radiological Monitoring

Program, Summary Report 1979-1985

2. 1985-2013 Annual Radiological Environmental Operating

Reports, Palo Verde NuclearGenerating Station3. Palo Verde Nuclear Generating Station Technical Specifications and Technical Reference Manual4. Offsite Dose Calculation Manual, Revision 26, PVNGS Units 1, 2, and 35. Regulatory Guide 4.1, Programs for Monitoring Radioactivity in the Environs of NuclearPower Plants6. Regulatory Guide 4.8, Environmental Technical Specifications for Nuclear Power Plants7. NRC Radiological Assessment Branch Technical Position on Environmental Monitoring, Revision 1, November 1979 (Incorporated into NUREG-1301)

8. NEI 07-07, Nuclear Energy Institute, Industry Ground Water Protection Initiative

-FinalGuidance

Document, August 2007PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201472 Appendix AOapA subsidiary of Pinnacle West Capital Corporation ID #:DATE:TO:Sta. #Ext. #FROM:Sta. #Ext. #218-03843 15 April 2015FileCompany Correspondence Joshua McDowell739782-5482McDowel Digitally signed by McDowell, Mc~o ellJoshua (Z08270)S0) DN: cn=McDoweII, Joshua (Z08270)J oshnua(Z 827 Date: 2015.04.15 16:50:52

-07'00'

SUBJECT:

Correction to Annual Radiological Environmental Operating Report for 2012Palo Verde Nuclear Generating Station -Units 1, 2, and 31. PVNGS "Annual Radiological Environmental Operating Report for 2012"2. PVNGS "Annual Radiological Environmental Operating Report for 2014"

Dear Sir or Madam:

In accordance with Palo Verde Nuclear Generating Station (PVNGS) Technical Specification (TS)5.6.2, PVNGS submitted the Annual Radiological Environmental Operating Report (AREOR) for2012 via Reference

1. It was discovered that WRF Centrifuge Waste Sludge samples for December11 and 18, 2012, entered into the REMP database, were not included in the 2012 AREOR.Additionally, the Air Sample Data for sample period December 25-31, 2012, entered into the REMPdatabase, were not included in the 2012 or 2013 AREOR.These missing deviations were added to the amended page of Reference

2. The amended page wasincluded as an appendix at the end of Reference 2, the 2014 subject report. These deviations weredocumented through Corrective Action Program document CRDR 4616525.

TABLE 8.11 SLUDGE/SEDIMENT ODCM required samples denoted by *units are pCilkg, wetSAMPLELOCATIONDATECOLLECTED 1-131 Cs-134 Cs-137 In-lll1~WRFCENTRIFUGE WASTE SLUDGE14-Aug- 1221-Aug-12 28-Aug- 124-Sep-1211-Sep-12 18-Sep-12 25-Sep-12 2-Oct-129-Oct-1216-Oct-12 23-Oct-12 30-Oct-12 6-Nov-1213-Nov-12 19-Nov- 1227-Nov- 124-Dec-1211-Dec-12 18-Dec- 1224-Dec- 123 1-Dec- 12322 +/- 182568 +/- 172893 +/- 208832 +/- 192920 +/- 229725 +/- 191655 +/- 164810+/--236593 +/- 151OOS162 +/- 147246 +/- 148536 +/- 197450 +/- 190630 +/- 162531 +/- 2006521 +/- 171726 -2211002 +/- 2671244 +/- 2411079 +/- 232<143<108<148<121<147<141<129<113<131<40<148<149<123<119<140<138<144<84<117<101<153<168<165<171<107<167<99<176<170<18<130<30<162<80<178<130<141<177<86<471*SEDIMENTATION BASIN #2PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201244 TABLE 8.2 PARTICULATE GROSS BETA IN AIR 3rd -4th QUARTERODCM required samples denoted by *units are pCi/m33rd Quarter(control)

START STOP Site Site Site Site Site Site Site Site Site Site RSDWeek # DATE DATE 4 6A* 7A 14A* 15* 17A 21 29* 35 40* Mean (%)27 26-Jun-12 2-Jul-12 0.033 0.033 0.037 0.033 0.036 0.035 0.033 0.033 0.033 0.032 0.034 4.828 2-Jul-12 10-Jul-12 0.038 0.034 0.035 0.036 0.036 0.039 0.029 0.035 0.034 0.033 0.035 7.929 10-Jul-12 17-Jul-12 0.029 0.033 0.031 0.030 0.031 0.034 0.027 0.031 0.035 0.031 0.031 7.530 17-Jul-12 24-Jul-12 0.038 0.036 0.034 0.036 0.037 0.039 0.033 0.034 0.034 0.035 0.036 5.531 24-Jul-12 30-Jul-12 0,033 0.029 0.034 0.031 0.034 0.032 0.031 0.033 0.034 0.032 0.032 5.132 30-Jul-12 7-Aug-12 0.041 0.033 0.041 0.042 0.045 0.045 0.037 0.036 0.043 0.040 0.040 9.733 7-Aug-12 14-Aug-12 0.044 0.046 0.045 0.044 0.045 0.044 0.037 0.044 0.042 0.042 0.043 5.934 14-Aug-12 21-Aug-12 0.027 0.025 0.027 0.028 0.030 0.028 0.026 0.027 0.029 0.028 0.028 5.235 21-Aug-12 28-Aug-12 0.025 0.026 0.027 0.025 0.025 0.025 0.024 0.023 0.025 0.025 0.025 4.236 28-Aug-12 4-Sep-12 0.037 0.036 0.038 0.038 0.038 0.038 0.033 0.039 0.040 0.039 0.038 5.237 4-Sep-12 11 -Sep-12 0.031 0.035 0.034 0.033 0.034 0.036 0.029 0.034 0.033 0.032 0.033 6.138 11-Sep-12 18-Sep-12 0.042 0.045 0.040 0.043 0.044 0.043 0.035 0.041 0.040 0.043 0.042 6.839 18-Sep-12 25-Sep-12 0.066 0.069 0.067 0.062 0.069 0.067 0.064 0.067 0.064 0.067 0.066 3.4Mean 0.037 0.037 0.038 0.037 0.039 0.039 0.034 0.037 0.037 0.037 0.037 3.84th Quarter(control)

START STOP Site Site Site Site Site Site Site Site Site Site RSDWeek # DATE DATE 4 6A* 7A 14A* 15* 17A 21 29* 35 40* Mean (%)40 25-Sep-12 2-Oct-12 0.057 0.059 0.051 0.058 0.064 0.052 0.052 0.064 0.060 0.060 0.058 7.841 2-Oct-12 9-Oct-12 0.064 0.053 0.064 0.051 0.067 0.067 0.056 0.059 0.057 0.058 0.060 9.842 9-Oct-12 16-Oct-12 0.030 0.034 0.039 0.038 0.039 0.037 0.035 0.034 0.038 0.035 0.036 7.943 16-Oct-12 25-Oct-12 0.042 0.041 0.040 0.043 0.045 0.046 0.038 0.046 0.041 0.043 0.043 6.244 25-Oct-12 30-Oct-12 0.045 0.045 0.048 0.045 0.044 0.044 0.042 0.047 0.043 0.041 0.044 4.945 30-Oct-12 6-Nov-12 0.066 0.067 0.062 0.062 0.064 0.061 0.052 0.059 0.064 0.045 0.060 11.346 6-Nov-12 13-Nov-12 0.034 0.037 0.036 0.034 0.034 0.040 0.032 0.036 0.033 0.034 0.035 6.247 13-Nov-12 19-Nov-12 0.061 0.063 0.061 0.055 0.058 0.055 0.045 0.058 0.054 0.059 0.057 9.048 19-Nov-12 27-Nov-12 0.050 0.061 0.056 0.051 0.051 0.054 0.047 0.055 0.049 0.054 0.053 7.749 27-Nov-12 4-Dec-12 0.050 0.047 0.048 0.050 0.050 0.051 0.045 0.045 0.046 0.045 0.048 5.350 4-Dec-12 11-Dec-12 0.047 0.051 0.044 0.041 0.042 0.043 0.037 0.038 0.040 0.040 0.042 10.451 11 -Dec- 12 18-Dec- 12 0.023 0.021 0.023 0.022 0.022 0.024 0.020 0.023 0.021 0.022 0.022 4.952 18-Dec-12 25-Dec-12 0.045 0.047 0.046 0.042 0.044 0.045 0.038 0.042 0.040 0.039 0.043 7.053 25-Dec-12 31-Dec-12 0.030 0.031 0.032 0.030 0.028 0.031 0.030 0.033 0.025 0.031 0.030 7.357PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201230 TABLE 8.5 RADIOIODINE IN AIR 3rd -4th QUARTERODCM required samples denoted by *units are pCi/mr33rd Quarterp1START STOPWeek # DATE DATESite4(control)

Site6A*Site7ASite14A*required LLD <0.070Site15*Site17ASite21Site29*Site35Site40*2728293031323334353637383926-Jun-12 2-Jul-12

<0.0292-Jul-12 10-Jul-12

<0.03410-Jul-12 17-Jul-12

<0.04917-Jul-12 24-Jul-12

<0.01924-Jul-12 30-Jul-12

<0.03430-Jul-12 7-Aug-12

<0.0527-Aug-12 14-Aug-12

<0.03914-Aug-12 21-Aug-12

<0.06421-Aug-12 28-Aug-12

<0.05528-Aug-12 4-Sep-12

<0.0454-Sep-12 I 1-Sep-12

<0.0371I1-Sep-12 18-Sep-12

<0.04618-SeD-12 25-SeD-12

<0.042<0.059<0.039<0.055<0.051<0.049<0.049<0.066<0.024<0.030<0.056<0.033<0.069<0.038<0.057<0.044<0.050<0.064<0.041<0.038<0.046<0.065<0.036<0.055<0.048<0.057<0.069<0.031<0.023<0.056<0.036<0.034<0.044<0.029<0.027<0.032<0.0 18<0.020<0.036<0.023<0.052<0.048<0.051<0.061<0.050<0.052<0.057<0.056<0.049<0.058<0.069<0.051<0.070<0.031<0.028<0.033<0.028<0.021<0.037<0.029<0.033<0.026<0.044<0.026<0.062<0.030<0.064<0.032<0.055<0.055<0.057<0.037<0.057<0.070<0.045<0.032<0.060<0.056<0.057<0.038<0.027<0.047<0.025<0.031<0.023<0.035<0.024<0.024<0.043<0.029<0.052<0.021<0.068 <0.023<0.051 <0.022<0.031 <0.066<0.064 <0.032<0.039 <0.026<0.056 <0.035<0.070 <0.027<0.064 <0.049<0.070 <0.021<0.021 <0.043<0.069 <0.041<0.021 <0.046<0.050 <0.0334th QuarterSTARTWeek # DATESTOPDATESite4(control)

Site6A*required LLD<0.070Site15"Site7ASite14A*Site17ASite21Site29*Site35Site40*4041424344454647484950515252325-Sep-12 2-Oct-12

<0.0262-Oct- 12 9-Oct- 12 <0.0379-Oct-12 16-Oct-12

<0.03016-Oct-12 25-Oct-12

<0.02225-Oct-12 30-Oct-12

<0.03230-Oct-12 6-Nov-12

<0.0316-Nov-12 13-Nov-12

<0.01413-Nov-12 19-Nov-12

<0.03819-Nov-12 27-Nov-12

<0.03127-Nov-12 4-Dec-12

<0.0374-Dec-12 11-Dec-12

<0.03411-Dec-12 18-Dec-12

<0.03418-Dec-12 25-Dec-12

<0.04325-Dec-12 31-Dec-12

<0.021<0.054<0.053<0.054<0.061<0.036<0.048<0.046<0.036<0.046<0.052<0.058<0.047<0.068<0.039<0.053<0.066<0.045<0.030<0.052<0.066<0.025<0.037<0.047<0.070<0.052<0.020<0.058<0.048<0.027<0.020<0.040<0.037<0.040<0.0 19<0.061<0.029<0.065<0.020<0.025<0.025<0.067<0.035<0.022<0.068<0.062<0.021<0.036<0.061<0.025<0.036<0.059<0.061<0.033<0.062<0.042<0.063<0.032<0.008<0.027<0.067<0.040<0.027<0.025<0.028<0.012<0.040<0.065<0.037<0.063<0.041<0.047<0.062<0.068<0.034<0.044<0.043<0.019<0.037<0.052<0.036<0.056<0.066<0.045<0.058<0.025<0.043<0.030<0.058<0.037<0.031<0.069<0.038<0.064<0.025<0.026<0.036<0.060<0.027<0.064 <0.026<0.055 <0.030<0.061 <0.033<0.029 <0.067<0.046 <0.030<0.055 <0.024<0.028 <0.054<0.036 <0.039<0.049 <0.026<0.060 <0.026<0.064 <0.028<0.069 <0.037<0.058 <0.009<0.065 <0.023PVNGS ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT -201233