Text

2020 Annual Radioactive Effluent Release Report and 2020 Annual Radiological Environmental Operating Report
	ML21127A162
Person / Time
Site:	Beaver Valley
Issue date:	04/30/2021
From:	; Energy Harbor Nuclear Corp
To:	; Office of Nuclear Reactor Regulation
Shared Package
ML21127A168	List: L-21-135, ODCM: Liquid Effluents; ML21127A144; ML21127A148; ML21127A149; ML21127A151; ML21127A155; ML21127A156; ML21127A158; ML21127A159; ML21127A162; ML21127A165;
References
	L-21-135
	Download: ML21127A162 (197)
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{{#Wiki_filter:Enclosure A L-21-135 2020 Annual Radioactive Effluent Release Report and 2020 Annual Radiological Environmental Operating Report (Reports follow)

I I I I I I I I I I I I I I I I I I I ENERGY HARBOR NUCLEAR CORP. BEAVER VALLEY POWER STATION 2020 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (ARERR) AND RTL# A9.690E ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT (AREOR) UNIT NOs. 1 AND 2 LICENSES DPR-66 AND NPF-73

I I I I I I I I I I I I I I I I I I I RTLA9.690E BEA VER VALLEY POWER STATION ENVIRONMENTAL & CHEMISTRY SECTION Technical Report Approval: 2020 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (ARERR) AND ANNUAL RADIOLOGICAL ENVIRONMENT AL OPERATING REPORT (AREOR) UNIT NOs. 1 AND 2 LICENSES DPR-66 AND NPF-73 ARERR Prepared by: Jiovanni Nunez,..-:::Z. ~ Date: '1/25 h J ARBOR Prepared by: Courtney F. Casto ~.J/i: C~ Date: 1./J3j,.o,_/ Reviewed by: Dr. Robert R. Winters ~ w~ Date: 1/ ZS I 2. I Approvedby:ScottW.Yorlt ~ Date: lfj_¥/olf

I I I I I I I I I I I I I I I I I I I

Subject:

Beaver Valley Power Station, Unit Nos. 1 and 2 BV-1 Docket No: 50-334, License No. DPR-66 BV-2 Docket No. 50-412, License No. NPF-73 Radioactive Effluent Release Report for 2020, and Annual Radiological Environmental Operating Report for 2020 Distribution for Enclosures 1-3: Original Report to: U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 Copies of Report to Other USNRC: U. S. Nuclear Regulatory Commission NRR Project Manager U.S. Nuclear Regulatory Commission NRC Senior Resident Inspector U.S. Nuclear Regulatory Commission NRC Region I Administrator U. S. Nuclear Regulatory Commission NRC Region I Health Physics Inspector Copies of Report to Other Agencies: American Nuclear Insurers 95 Glastonbury Boulevard Glastonbury, CT 06033 Department of Environmental Protection (5 copies) Bureau of Radiation Protection Rachel Carson State Office Building 400 Market Street Harrisburg, PA 17101 Department of Environmental Protection (2 copies) Southwest Regional Office 400 Waterfront Drive Pittsburgh, PA 15222

Distribution for Enclosures 1 - 3: Page2 INPO 700 Galleria Parkway SE Suite 100 Atlanta, GA 30339-5957 Penn State Cooperative Extension 1000 3rd Street STE 3 Beaver, PA 15009 Ohio Department of Health 246 North High Street Columbus, OH 43215-3363 Ohio Emergency Management Agency 2855 West Dublin Granville Road Columbus, OH 43235 East Liverpool Water Authority 2220 Michigan A venue East Liverpool, OH 43920 ORSANCO 5735 Kellogg Avenue Cincinnati, OH 45228 Bureau of Radiation Protection HP3 Ohio Department of Health Northeast District Office 161 South High Street, Suite 400 Akron, OH 44308-1612 I I I I I I I I I I I I I I I I I I I

I I I I I I ,1 I I I I I I I I I I I I Distribution for Enclosures 1 - 3: Page 3 Copies of Report for EH Addressees: SW York, BVPS; Manager, Radiation Protection & Chemistry RR Winters, BVPS; Superintendent, Nuclear Chemistry J Nunez, BVPS; Chemistry Services, RETS (5 copies) SA Wender, Akron; Manager, Fleet Chemistry/Environmental RJ Dinello, Field Specialist, Environmental, Inc BVPS Document Control, RTL A9.690E

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 1 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 RTLA9.690E, Page i 2020 Annual Radioactive Effluent Release Report Energy Harbor Nuclear Corp. Beaver Valley Power Station - Units 1 & 2 Unit 1 License No. DPR-66 Unit 2 License No. NPF-73

I I I I I I I I I I I I I I I I I I I Fom, 1/2-ENV-01.05.F01 (page 2 of 39), Rev 5 RTL# A9.690E, Page ii Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Index [TI*,,....,-*--, - -**--***, * *--*-...........,~.,.--.*,~*---**........ r.. "

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_,,-.,*~d~-.,.:>r.**--.4:~,..-.*A -\\1.~lfl,J..),, ~- I"* Cover i Index ii Executive Summary - Report Submittal Requirements iii Executive Summary - liQuid and Gaseous Effluent Control (Part 1 of 2) iv Executive Summary - LiQuid and Gaseous Effluent Control (Part 2 of 2) V Executive Summary - Trends of Total Dose vi Executive Summary - Trends of liQuid Release Activity (Fission and Activation Products) vii Executive Summary - Trends of LiQuid Release Activity {Tritium) viii Executive Summarv - Trends of LiQuid Release Offsite Dose Proiections ix Executive Summarv - Trends of Gaseous Release Activity !Fission and Activation Gas) X Executive Summary - Trends of Gaseous Release Activity (Particulates and Radioiodines) xi Executive Summary - Trends of Gaseous Release Activity (Tritium) xii Executive Summary - Trends of Unit 1 Gaseous Release Offsite Dose Projections xiii Executive Summary - Trends of Unit 2 Gaseous Release Offsite Dose Projections xiv Results of Abnormal Releases xv Results of Onsite Spills and Items Added to Decommissioning Files oer 10CFR50.75Cal xvi Results of Onsite Groundwater Monitoring Program xvii Corrections to Previous Annual Radioactive Effluent Release Reports xviii Suoolernental Information Page 1 Table 1A Gaseous Effluents - Summation Of All Releases 2 Table 1B-EB Gaseous Effluents - Elevated Batch Releases 3 Table 1B-EC Gaseous Effluents - Elevated Continuous Releases 4 Table 1C-GB1 Gaseous Effluents - Ground Level Batch Releases (Unit 1) 5 Table 1C-GC1 Gaseous Effluents - Ground Level Continuous Releases (Unit 1) 6 Table 1C-GB2 Gaseous Effluents - Ground Level Batch Releases (Unit 2) 7 Table 1C-GC2 Gaseous Effluents - Ground Level Continuous Releases (Unit 2) 8 Table2A liQuid Effluents - Summation Of All Releases 9 Table2B-B liQuid Effluents - Batch Releases 10 Table 2B-C liQuid Effluents - Continuous Releases 11 Table 3A Solid Waste And Irradiated Fuel Shipments (Part 1 of 3) 12 Table 3B Solid Waste And Irradiated Fuel Shipments (Part 2 of 3) 13 Table 3C Solid Waste And Irradiated Fuel Shipments (Part 3 of 3) 14 Table4 Lower limits Of Detectability 15 Table 5A Assessment Of Radiation Doses (Unit 1) 16 Table 5B Assessment Of Radiation Doses (Unit 2) 17 Table 6 Effluent Monitorina Instrumentation Channels Not Returned To Operable Status Within 30 Davs 18 Table 7 Total Dose Commitments and Total Effective Dose Eauivalents 19 Table 8 Offsite Dose Calculation Manual Surveillance Deficiencies 20 Table 9 Unit 1 and 2 Offsite Dose Calculation Manual Changes (Description) 21 Part 1: Joint Frequency Distribution Tables (35 ft) Part 2: Joint Frequency Distribution Tables (150 ft) Part 3: Joint Freauencv Distribution Tables (500 ftl Unit 1 and 2 Offsite Dose Calculation Manual (Complete Coovl Unit 1 and 2 Carbon-14 (C-14) Dose Estimates Note: The Total Error values(%) listed in this report are documented in Calculation Package No. ERS-ATL-04-002

I I I I I I I I I I I I I I I I I I I Form 1 /2-ENV-01.05.F01 (page 3 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Executive Summary - Report Submittal Requirements RTL# A9.690E, Page iii Report Submittal and Requirements: The report was prepared and submitted in accordance with the requirements contained in the following documents: BVPS Integrated Technical Specifications, Administrative Control 5.6.2 Offsite Dose Calculation Manual (ODCM) procedure l/2-ODC-3.03, 'Controls for RETS and REMP Programs", Attachment U, Control 6.9.3 BVPS procedure l/2-ENV-01.05, "Compliance with Regulatory Guide 1.21 and Technical Specifications " NUREG-130 I, "Offsite Dose Calculation Manual Guidance: Standard Radiological Effluent Controls for Pressurized Water Reactors, Generic Letter 89-01, Supplement No.I, April 1991 " Regulatory Guide 1.21, Measuring Evaluating and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Material in Liquid and Gaseous Effluents from Light-Water Cooled Nuclear Power Plants, Revision 1, June 1974" BVPS Condition Report No. CR-2020-01743, ODCM Surveillances Not Met BVPS Condition Report No. CR-2020-03889, Groundwater Extraction Well ISCO pump knocked over BVPS Condition Report No. CR-2020-03978, Failure of2GSS-PSE21 (Turbine Steam Header Vent and Drain Rupture Disc) BVPS Condition Report No. CR-2020-04014, Missing ODCM Sample Media BVPS Condition Report No. CR-2020-04193, 2019 Permit not generated in RADEAS for Process Vent Continuous Release (2/4/19 - 2/11/19) BVPS Condition Report No. CR-2020-05157, Liquid Waste Line Leak In Satellite RC.I BVPS Condition Report No. CR-2020-07051, Outfall Level Calibratio1 BVPS Condition Report No. CR-2020-07160, Effluent monitor will not be returned to service within 30 days BVPS Condition Report No. CR-2020-07198, FT-lCW-101-1 (Discharge Structure Blowdown Weir Flow) cannot be calibrated, will need to be replaced, need ECP to replace due obsolete parts BVPS Condition Report No. CR-2020-07737, Flow transmitters will not be returned to service within 30 days BVPS Condition Report No. CR-2020-09183, 2CWS-FT101 Cooling Tower Blowdown Flow Transmitter failed high Condition Reporting Process:The condition reports referenced above are documents generated electronically by plant personnel to record noncompliance issues with federal, state, local, and plant regulations and operating procedures, and to ensure that such issues are promptly addressed. If any nonconformities are identified, the Condition Reporting Process allows for corrective actions to be assigned to the proper individuals, in order to rectify adverse plant conditions and to prevent the future occurence of similar issues.

Form 1 /2-ENV-01.05.F01 (page 4 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 RTL# A9.690E, Page iv Executive Summary - Liquid and Gaseous Effluent Control (Part 1 of 2) Onsite Groundwater Monitoring: H-3 Summary: In 2020, twenty three (23) on-site monitoring wells were sampled in the spring and fall sampling periods. No new wells were installed, nor were any wells retired. MW-16 was sampled twelve ( 12) times throughout 2020, two (2) of which were included in the yearly biannual sampling. No adverse effect to the offsite environment has been detected at this time, because all offsite groundwater, drinking water and surface water samples were <440 pCi/L. See Enclosure 2, Page xvii for additional details. Onsite Spills: There were no onsite spills > 100 gallons. Decommissioning File Update: There is one (l) item to be added to the site decommissioning files in accordance with 10CFR50.75(g). Abnormal Liquid Releases: There were no abnormal liquid releases. Abnormal Gaseous Releases: There was one (1) abnormal gaseous release. Liquid Radwaste Treatment System: The site operated via a shared Liquid Radwaste Treatment System, even though each Unit has its own ion-exchange vessels. Shared operation allowed either Unit to process liquid waste at the Unit of origin, or at the other Unit. Typically, when Unit 1 or 2 high level liquid waste was processed ( e.g., coolant recovery waste) it was performed at Unit 1, because it has a carbon pre-conditioning filter. Gaseous Radwaste Treatment System: The site operated via a shared Gaseous Radwaste Treatrnen1 System, even though each Unit has its own charcoal delay beds and storage/decay tanks. Shared operation allowed either Unit to process gaseous waste at the Unit of origin, or at the other Unit. Typically, when Unit 1 or 2 went to a shutdown condition, the gaseous waste was transferred for storage and decay at Unit 2, because Unit 2 has four (4) additional storage tanks. All doses from continuous releases of the Process Vent (elevated pathway) are assigned to Unit 1. I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 5 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 RTL# A9.690E, Page v Executive Summary - Liquid and Gaseous Effluent Control (Part 1 of 2) Lower Limits of Detectability {LLD): All a-priori calculated LLD met the minimum requirements specified in the ODCM. Effluent Monitoring Channels Inoperable >30 Days:There were two (2) Effluent Monitoring Instrumentation Channels not returned to Operable status within 30 days. ODCM Surveillance Deficiencies: There were three (3) instances of ODCM Surveillance Deficiencies. ODCM Changes: There was one (I) change made to the ODCM. Meteorological Data Recovery: The Meteorological Data Recovery met the minimum requirement of at-least 90%, as specified in Section 5 of Revision 1 to Regulatory Guide 1.23, Meteorological Monitoring Programs for Nuclear Power Plants. Carbon-14 Dose Assessment: Carbon-14 dose was calculated using EPRI & RG-1.109 calculation methods and the default ODCM receptor. The highest organ doses were to the bone (child). Details of the dose assessment due to releases of Carbon-14 in gaseous effluents are provided in Attachment 3 of this report.

Form 1/2-ENV-01.05.F01 (page 6 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Executive Summary - Trends of Total Dose RTL# A9.690E, Page vi Trends of Total Dose: The following graph provides a comparison of the ODCM dose projections from all facility releases and direct radiation exposures to show compliance with Member of the Public dose limits from 10 CFR 20.1301 and 40 CFR Part 190. 100.0% ~------------------ ~ 10.0% .J ~ ~ 0 'it, 1.0% 0.1%............. --+-----+--+--+-+--+--+---+--+---+---+---+------,f---+-----+--+---+---+--+--+---l ~~~~~~~~#~~~~~~~~~~~~# --Urit 1&2. PercertdCO CFR 180.10(8) TotalBodyOoee Unit o Uril 1&2, Percent d 40CFR190. 10(e) lhyrokf OoN Unit _,._ Urit 1&2. Percerid 10CFR 20.1301(a)(1)TED:Ooee Limit I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 7 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 RTL# A9.690E, Page vii Executive Summary - Trends of Liquid Release Activity (Fission and Activation Products) Liquid Release Activity (Fission and Activation Products): The following graph provides a comparison of total liquid mixed fission and activation product (particulate) radioactivity discharged from each unit from 1976 to present. 0.01 +-11-+-+--+--1-+--t-+-+-+--+--+-+-+-+--+-+--+-+-+-+--+-i-+-+-+--1-+--+-+-+-+--+-1-+-+-+--1-+--+-+-+-+--1 ~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~ I -BVPS Un~ 1 BVPS Untt 2 I

Fonn 1/2-ENV-01.05.F01 (page 8 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Executive Summary - Trends of Liquid Release Activity (Tritium) RTL# A9.690E, Page viii Liquid Release Activity <Tritium): The following graph provides a comparison of total liquid tritium radioactivity discharged from each unit from 1976 to present. 1be latest increases were due to the increase power of the reactor, or power uprate, which lead to increased tritimn. 10000 ~-----------------------------~ Ill -~ 100 +-'W---------------------------------------1

, u 10 -------------------------------<

~~~~~~~~~~~~~~~~~~~~~~~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~-~~~ ~ ~ ~ ~ ~ ~ ~ ~ -BVPS Unl 1 BVPS Unl 2 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Fonn 1/2-ENV-01.05.F01 (page 9 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 RTL# A9.690E, Page ix Executive Summary - Trends of Liquid Release Offsite Dose Projections Liquid Release Offsite Dose Proiections: The following graph provides a comparison ofliquid offsite dose projections that were calculated to the maximum individual per 10 CFR 50, Appendix I and the ODCM. The projections use ODCM default flow rates for the receiving water (Ohio River), and were performed prior to release authorization. 100.0%,------- ------- -------- 10.0% .s:= 5 ~ 1111 ~ 0 ~ 0 1.0% 0.1% -'--+-+--+--+----+---i--+--+-- +---+------,f---+--+--+---+--l----+---+-+--+--1----+---+--l ~~~~####~~#~~~ef~~~~~~~~~ --e-Unit 1/2, Percenl d Ma,dmum Organ Ooee Limit o Urit 1/2, Percent ct Total Bodi Ooee Umit

Form 1/2-ENV-01.05.F01 (page 10 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year-2020 RTL# A9.690E, Page x Executive Summary - Trends of Gaseous Release Activity (Fission and Activation Gas} Gaseous Release Activity {Fission and Activation Gas): The following graph provides a comparison of total gaseous fission and activation gas discharged from each unit from 1976 to present. The steady decreases are due to extended hold-up periods of gas space prior to release. The differences between the units are relative to the outages that occured that year. Note that in 2019, due to new effluent software, all continuous releases out of the elevated release Process Vent are now assigned to Unit l, even though it is a shared pathway. This accowits for the drastic change in trend values. The sharp increase in gaseous release activity that occurred from Unit 2 in 2020 was determined to have been the result of the routine degassification of the Unit 2 reactor coolant system that occurred as part of the 2R21 refueling outage. RCS degas activity is conservatively approximated by using the results of samples taken during startup from the previous Unit 2 outage, and the sample used during 2R2 l contained a high concentration of Argon-41, which accowits for the increase in activity. These releases did not pose any radiation health risk to the public or plant personel, nor did they exceed any NRC regulations or reporting criteria. 10000.00 1000.00 100.00 10.00 <I) 1.00 -I!! (.) 0.10 0.01 0.00 0.00 0.00 ~~~~~~~~~~~~~~~~~~~~~~~ "Oj "Oj ,<?J ... ~,<?J ~,<?J ... ~-... ~- ,OJ ,OJ ,OJ '\\,<:s rpS rpS rpS rpS '\\,(;) ~ ~ ~ '\\,~ ~ --eVPs Untt 1 -- BVPS Untt 2 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Fonn 1/2-ENV-01.05.F01 (page 11 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 RTL# A9.690E, Page xi Executive Summary - Trends of Gaseous Release Activity (Particulates and Radioiodines; II) -~ (.) Gaseous Release Activity (Particulates and Radioiodines): The following graph provides a comparison of total gaseous particulates and radioiodines discharged from each unit from 1976 to present. The differences between the units are relative to the outages that occured that year. 1.E-01 1.E-02 1.E-03 1.E-04 1.E-05 1.E-06 1.E-07 -BVPS Untt 1 sVPS Untt 2

Fonn 1 /2-ENV-01.05.F01 (page 12 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Executive Summary - Trends of Gaseous Release Activity (Tritium) RTL# A9.690E, Page xii Gaseous Release Activity {Tritium): The following graph provides a comparison of total gaseous tritium discharged from each unit from 1976 to present. The recent decreases were due to efforts to reduce overall offsite dose. Specifically, discharging liquid radioactive inventory provided the benefit of reduced total offsite dose, due to reduction in evaporative losses from the fuel pools. Note that beginning in 2019, Beaver Valley no longer adjusts gaseous tritium effluents for background tritium and for evaporation of tritium from Fuel Pool. Excluding these adjustments provides a more conservative total for gaseous tritium released. "' -~ CJ

1. 1. 1. 1. ~#######~~~~##

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ I -BVPS Un~ 1 BVPS Unl 2 I I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 {page 13 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 RTL# A9.690E, Page xiii Executive Summary - Trends of Unit 1 Gaseous Release Offsite Dose Unit 1 Gaseous Release Offsite Dose: The following graph provides a comparison of Unit 1 gaseous offsite dose projections that were calculated to the maximum individual per l 0 CFR 50, Appendix I and the ODCM. The projections use ODCM default meteorological parameters for the atmospheric conditions surrounding the plant site, and were performed prior to release authorization. 100.0000000% 10.0000000% 1.0000000% 0.1000000% ~ E 0.0100000%

i

~ 0.0010000% ~ 0.0001000% 0 ii!- 0.0000100% 0.0000010% 0.0000001% Unit 1, Percent of Gamma ~r Oo.e Umit -'I-. Unit 1, Percent of Beta Nr Oo&e Umtt __.,_ Unit 1. Percent of Hl~est Organ Dose Limit

Fonn 1/2-ENV-01.05.F01 (page 14 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 RTL# A9.690E, Page xiv Annual Radioactive Effluent Release Report Calendar Year - 2020 Executive Summary - Trends of Unit 2 Gaseous Release Offsite Dose Unit 2 Gaseous Release Offsite Dose: The following graph provides a comparison of Unit 2 gaseous offsite dose projections that were calculated to the maximmn individual per 10 CFR 50, Appendix I and the ODCM. The projections use ODCM default meteorological parameters for the atmospheric conditions surrounding the plant site, and were perfonned prior to release authorization. 100.0000000% 10.0000000% 1.0000000%

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0.1000000% 0.0100000% ~ ~ 0.0010000% l 0 ';If. 0.0001000% 0.0000100% 0.0000010% lHt 2, Percent of Ganwna Alt Dose Umit ,_.__ Urit 2, Percent of Seta Nr Dose Unit ~ lut 2, Percent of Ht(tlest Organ Dow Umtl: l I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 15 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Results of Abnormal Releases Abnormal Liquid Releases: NONE RTL# A9.690E, Page xv Abnormal Gaseous Releases: There was one (1) abnormal gaseous release during the report period. On May 4, 2020 1650 hours, failure of the Unit 2 Gland Steam Rupture Disc (2GSS-PSE21) during the 2R21 refueling outage resulted in an abnormal release of 12,511,562 cft of gas through the Main Steam Safety Valves, and into the atmosphere over the course of 865 minutes, carrying a total of 1.13E-02 Ci worth of tritium. This release is captured in CR-2020-03978 and RWDA-G-U2GB2020-083.

Form 1/2-ENV-01.05.F01 (page 16 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 RTL# A9.690E, Page xvi Results of Onsite Spills and Items Added to Decommissioning Files per 1 0CFR50. 75(g) Summary of Onsite Spills (>100 gallons): NONE Summary of Items added to Decommissioning Files per 10CFR50.75{g) Files: On June 18, 2020 0500, a liquid leak was discovered on pipe 1-1/2"-LW-184-302 downstream of 1LW-513 in the satellite RCA area at elevation 735' outside of the Unit 1 Fuel Pool Leak Monitoring Room near the Decon Building. The leak rate was estimated at 1-2 drops per second with an estimated total leak volume of 3-4 gallons. Analysis of the leak indicated greater than 2000 picocuries per liter of tritium, and the presence of Mn-54, Co-58, Co-60, and Cs-137 above their lower limits of detection. A catch containment was placed underneath the leak, and standing liquids on the concrete below were cleaned up. No smearable radioactive contamination was present after the clean up, however due to crack being present in the concrete below, it is not certain whether any liquid made contact with the soil underneath. A voluntary communication was made to the Pennsylvania Department of Environmental Protection, Bureau of Radiation Protection, and the NRC Resident Inspector was also notified of the leak. The leakage did not pose any radiation health risk to the public or plant personnel, nor did it exceed any NRC regulations or reporting criteria. This event is captured in CR-2020-05157, and an action has been written to update the 10CRF50.75(g) files. I I I I I I I I I I I I I I I I I I I

I I -I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 17 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Rll# A9.690E, Page xvii Annual Radioactive Effluent Release Report Calendar Year - 2020 Results of Onslte Groundwater Monitoring Program Summary of Onslte Groundwater Samples AteAny 1-1-3 Analyses 2020 2020 2020 Typical Required Pre Greater Than 1-1-3 H-3 H-3 H-3 H-3 Operational The Pre Maxmum Mininum A--age LLD LLD Mean ForH-3 Operational /oCI/Ll loCill.\\ loCI/L\\ inl'I/L\\ inl'i/Ll inl'I/L\\ Mean For H-3 ? I senn11 !02! I 2540 I 153 I 3-44 I <200 I <2000 I 440 I Yea I Fall (04! I 4220 I 155 I,109 I <200 I <2000 I 440 I YH I MW-16 I 6520 I 1270 I 3TT2 I <200 I <2000 I 440 I YH Tritium fH-3) Summarv NEland FENOC EPA Communlcalion ReportSlg Level Level ForH-3 For H-3 /nl'i/L\\ /nl".1/L\\ I 2000 I 20000 I 2000 I 20000 I 2000 I 20000 In 2020, twenty three (23) on-slte rnonloring wels were sanpled in the spring and fall sampling periods. No new wells were Installed, nor were anywels reti'ed. MW sampled twelve (12) ISMS, two (2) ofwilch were lncllded In the yearly blslnual sampling. Twenty (20) wels returned resub of less than the pr&-Opelllllonal mesi (""0 pCi/L) during al sample periods In 2020. Three (3) wels (MW-15, MW-16, & MW-200) returned resuls >,t.40 pCIIL, but <2000 pCI/L. One (1) well (MW-16) returned resufta >2000 pCI/L. No 'M'Jls exceeded 20,000 pCI/L v.th the highest concentration reoorded as 6520 pCI/L. The licensee convnunication level was reached for MW-12S & MW-120 during 2007. Notfficalion to local, state & federal agencies was performed on 10/08/07. Additional communication for new well resufts was performed on 09/08/10 for those new wells that exceeded 2000 pCi/L. The newy ilstalled well MW-200 exceeded 2,000 pCi/L on its first sample, but this was expected since the well was ilstaled to monttor the prelliously idenffied plume ilterceptilg MW-16. No ad--se effect to the olfsile environment has been detected at this tine, because al offsle groundwater, drinkils, water aid surface IM!ler samples 'M'Jre <440 pCi/L. Millgation activities (catch basin sleeving) to prevent tritlaled condensate water from reachilg the groundwater were completed 12/17/11. Extraction well, EW-1, was ilstaled and beg!Wl operation in October 2013. This equipment captures the lltium plume IWld tt becomes a permitted discharge. Sanples.-e taken monthly to provide the concentratlon of the discharge. Remediation \\Iii contilue until the suspected plume Is depleted and trlium levels stabilize. The extraction wel was placed out-<JHenlice on 9/2312017 due to a failed control module. This Is the reason forlo\\Nerthan usual MW-16 vakles. Prlnclnal Gamma Emmltter Summarv AN onsite monitoring wells 'M'Jre sampled during the yea-, and analyzed for Principal Gamma Emitters. The results sh<'!d no positive indication of Licensed Radioactive Material (LRM) in IWIY of the analyses. Onsite Groundwater Monitoring Well Program H-3 Trends 100000 -r--------------.-B_V_P_S~2_00_7_-_2_0_2~0~------------. New Weis Installed Summer -MW-10 (Upgradient Control Well) Avg. ofaQ Samples Pre-Operational Mean H-3 (440 pCVL) .-Maximum Tritium Sample H-3 LLD (typically <200 pCi/L) Pre-Operational Max H-3 NRC Requted LLD (2,000 pCi/L) NEI Comminication Level-EPA Reporting Level (Non-Drinking Water) 30,000 pCi/L I I I

Form 1/2-ENV-01.05.F01 (page 18 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 RTL# A9.690E, Page xviii Corrections to previous Annual Radioactive Effluent Release Reports Correction(s) to Previous Annual Radioactive Effluent Release Reports: It was noticed that the Process Vent Continuous Release Permit for the week of 2/4/19 to 2/11 /19 had not been generated in RADEAS before submittal of the 2019 ARERR. The permit was originally created using an Excel spreadsheet and was accounted for in the old MIDAS software system, but was never remade in RADEAS. Upon discovery, the permit was generated in RADEAS (U1GB2019-171) and the new activity and dose totals will result in the following changes to the 2019 ARERR: 1: Page 2, Summation of All Releases, gaseous tritium for the 1st Quarter will increase from 5.50 Ci to 5.51 Ci (0.18% difference). 2: Page 4, Gaseous Effluents - Elevated Continuous Releases (Unit 1 & 2), gaseous tritium for the 1st Quarter will increase from 0.594 Ci to 0.601 Ci (1.16% difference) 3: The above change to Page 4, 1st Quarter results will change the total annual value reported in the same table from 0.776 Ci to 0.783 Ci. It was also noticed that the requirement to provide a brief summary stating that annual dose from the Independent Spent Fuel Storage Installation (ISFSI) was included in the annual report was inadvertantly left out of the 2019 ARERR. This will result in the following change to the 2019 ARERR: 1: Page 19, Total Dose Commitments and Total Effective Dose Equivalents, the following passage will be added: While there are minimal gaseous and liquid effluents specifically from the Independent Spent Fuel Storage Installation (ISFSI). there is a contribution from Direct Radiation. The doses listed in this section include the contributions from the ISFSI. I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 19 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Supplemental Information Page RTL# A9.690E, Page 1 of 21

~---

.* r

~~.--.

,.,*.*--****--*...:****f'O'........,.. _ ---*~-- Annual Unit 1 or 2 Dose: 10 mrad from Gamma, & 20 mrad from Beta nual Unit 1 or 2 Dose: _3 mrem to Total B , & 10 mrem to An Or n b.- Ge Gamma S

d. u* uld effluents::.

Ge Gamma S

5. Batch & Abnormal Release Information unit Q1 Q2 Q3 Q4 Calendar Year

a. Llauld Batch Releases

1. Number of batch releases 14 11 40 22 87

2. Total time Period for batch releases min 11415 13391 11271 7954 44031

3. Maximum time Dedod for a batch release I~

min 5032 5238 3793 3847 5238

4. Aver81.le time oerlod for batch releases min~

815 1217 282 362 506 . 5. Minimum time period for a batch release min 185 13 13 187 13 ~

6. AVf!JllJI.Je river flow durtna release DAriods cuft/sec 84039 54811 13019 27246 44779 1~b. Gaseous Batch Releases

,.;:i~ II ~- I~

1. Number of batch releases 4

14 7 5 30

2. Total time Deriod for l;>atch releases min 673 17667 2877 1615 22832

3. Maximum time oel'iod for a batch release min 252 5574 640 555 5574

4. AveraiJe time period for batch releases min~

168 1262 411 404 787 )I

5. Minimum time oarlod for a batcl'! release a,

mlnir, 69 9

54 200 9 p l!:i -~

c. Abnormal Liquid Reteases

1. Number of releases NONE NONE NONE NONE NONE

2. Total activity released Cl 0.00E+0O 0.00E+00 0.00E+OO 0.O0E+00 0.00E+00

d. Abnormal Gaseous Releases all)

_jl

";j,,,. ....- -*~.._..1...... -.......

1. Number of releases NONE 1

NONE NONE 1

2. Total actlvl!Y. rel88$ed Cl 0.00E+00 1.13E-02 0.00E+00 0.00E+00 1.13E-02

Form 1I2-ENV-01.05.F01 (page 20 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 1A Gaseous Effluents - Summation Of All Releases 1.17E-02 1.34E+01 5.49E-01 1.17E-02 0.OOE+OO 4.81E-01 O.OOE+OO 1.34E+01 6.72E-02 1.49E-03 1.71E;-OO 6.90E-02 NIA NIA NIA ' o;ooi::+oo 0.OOE+OO 0.00E+OO 0.00E+OO 0.00E+OO 0.00E+OO 0.00E+00 0.00E+OO 0.OOE+OO 0.00E+OO 0.Q0E+OO 0.00E+OO NIA NIA NIA 7.75E-06 3.64E-04 1.30E-06 7.20E-06 8.0SE-06 1.30E-06 5.57E-07 3.56E-04 0.00E+00 9.86E-07 4.63E-05 1.63E-07 NIA NIA NIA

o. 6rosi Alpha.....

k>

1. Stte Gron a1n11a radl Ci 0.00E+O0 0.00E+00 0.00E+00 1a. Unit 1 Gross aloha Ci 0.00E+00 0.00E+00 0.00E+00 1b. Unit 2 Gron al.Pila Ci 0.00E+00 0.00E+OO 0.00E+00

2. Averaae release rate for &>eriod uCUaec 0.00E+OQ 0.00E+OO 0.00E+OO

3. Percwit of aDDllcable llinlt NIA NIA NIA E. Tritium

1. Site Total reiaase Ci 1.88E+01 2.91E+01 1.70E+01 1,. Unit 1 Tritium Ci 2.99E+00 1.69E+OO 1.16E+00 1b. Unit 2 Tritium Ci 1.58E+01 2.74E+01 1.58E+01

2. Avenae release rate for period uCi/sec 2.40E+00 3.70E+00 2.14E+OO

3. Pereent of BDDllcable limit NIA NIA NIA F. C&rbon-14

,J,, '

1. Site TotQI release

,ll,... ;'.*'"

Ci 4.61E+00 4.62E+00 4.59E+00 1a. Unit 1 Ceibon-14 ,... :~:', Ci 2.33E+00 2.31E+00 2.25E+00 1b. Unit 2 c.t,on-14 Ci 2.28E+O0 2.31E+00 2.34E+00

2. Average release rete for l)erlod uCi/sec 5.85E-01 5.86E-01 5.82E-01

3. Per-cent of applicable llm!t NIA NIA NIA NIA= Not Applicable 1.07E-05 1.07E-05 O:OOE+OO 1.34E-06 NIA O.OOE+OO 0.OOE+OO 0.OOE+OO 0.OOE+OO NIA 0.OOE+OO 0.OOE+OO 0.OOE+OO 0.00E+OO NIA 0.OOE+00 0.00E+OO 0.OOE+OO 0.OOE+OO NIA 2.68E+01 2.25E+OO 2.45E+01 3.37E+OO NIA 4.69E+00 2.35E+00 2.34E+00 5.95E-01 NIA RTL# A9.690E, Page 2 of 21 1.40E+01 26.5%

4.93E-01 1.35E+01 4.45E-01 NIA 0.00E+OO NIA 0.00E+00 0.O0E+OO 0.00E+OO NIA 3.73E-04 30.0% 1.66E-05 3.57E-04 1.19E-05 NIA 0.00E+00 NIAi 0.00E+OO 0.00E+OO 0.00E+00 NIA 9.17E+01 32.9%1 8.09E+00 8.35E+01 2.90E+OO NIA 1.85E+01 41.1%1 9.24E+00 9.27E+00 5.87E-01 NIA The amount of time (in seconds) used to calculate the release rates specified in A.2, 8.2, C.2, D.2 and E.2 is the average amount of seconds per calendar quarter (7.88E+06 seconds). I I I I I I I I I I I I I I I I I I I

I I I I. I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 21 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 RTL# A9.690E, Page 3 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 1B-EB Gaseous Effluents - Elevated Batch Releases (Unit 1 & 2) C. Partlcufat.:S c:hron}lum-61 Ci 54 Cl cobelt-57 Cl cobalt~ Cl ~-6,0 Cl zinc-65 Cl -~ selenh11:n-75 Cl ~,~ r-. ~rconlumlnloblum-95 Cl zirconlum/nloblum-97 Cl ceslum-134 Cl ceslum-137 * ~-"* Cl cerlum-14-1 Cl cerlum-144 Cl stront,Jum-89 Cl strontlu,n-90 Ci Total for oerlod Cl D. Tritium 3 Ci NOTE: Unit 1/2 Process Vent LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND LLD LLD LLD ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND 1.18E-07 1.28E+01 LLD 2.91E-02 8.43E-02 7.87E-02 LLD 9.36E-02 LLD 2.71E-01 5.09E-02 LLD 1.34E+01 LLD LLD LLD ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND 4.52E-05 LLD = Below the Lov;er Limit of Detectability, in uCi/cc (Table 4). ND= None Detected LLD LLD LLD LLD LLD LLD 3.90E-06 LLD LLD LLD LLD 3.90E-06 LLD LLD LLD ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND 1.36E-06 LLD LLD LLD LLD LLD LLD 1.07E-05 LLD LLD LLD LLD 1.07E-05 LLD LLD LLD ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND 9.71E-07 1.28E+01 LLD 2.91E-02 8.43E-02 7.87E-02 LLD 9.36E-02 LLD 2.71E-01 5.09E-02 LL[) 1.34E+01 LLD LLD LLD ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND 4.76E-05

Form 1/2-ENV-01.05.F01 (page 22 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 RTL # A9.690E, Page 4 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 1B-EC Gaseous Effluents - Elevated Continuous Releases (Unit 1 & 2) 1.17E-02 LLD 4.38E-01 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD 2.01E-02 LLD LLD LLD LLD LLD LLD LLD 2.29E-02 LLD LLD LLD LLD LLD LLD LLD LLD LLD 1.17E-02 ND 4.81E-01 ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD Tolalfor ND ND ND ND

c. Particulates chromlum-61 Ci LLD LLD LLD LLD m

r ~ Ci LLD LLD LLD LLD cobMt~ Ci LLD LLD LLD LLD eobalt-58 Ci LLD 7.34E-07 LLD LLD cobalt.<<> Ci LLD LLD LLD LLD zinc:-65 Ci LLD LLD LLD LLD selenil,tm-75 Ci 7.20E-06 4.01E-06 1.30E-06 LLD .zirconlum/nloblum-9$ Ci LLD LLD LLD LLD zirconlum/nloblum..S7 Ci LLD LLD LLD LLD ~um-134 Ci LLD LLD LLD LLD ceslum-1~ a, LLD LLD LLD LLD cenum-141 Ci LLD LLD LLD LLD cerium-144 Ci LLD LLD LLD LLD strontium-89 Ci LLD LLD LLD LLD strontlum-90 Ci LLD LLD LLD LLD Tob!I for oerlod Ci 7.20E-06 4.75E-06 1.30E-06 ND D. TTltlum 4.S0E-01 LLD LLD LLD LLD LLD 2.01E-02 LLD 2.29E-02 LLD LLD 4.93E-01 LLD LLD LLD ND LLD LLD LLD 7.34E-07 LLD LLD 1.25E-05 LLD LLD LLD LLD LLD LLD LLD LLD 1.33E-05 hydrooen.;i Cl I 1.04E-01 I 7.09E-02 I 6.93E-02 I 1.45E-01 I 3.89E-01 I I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 23 of 39), Rev 5 Beaver Valley Power Station - Unit 1 RTL# A9.690E, Page 5 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 1 C-GB 1 Gaseous Effluents - Ground Level Batch Releases (Unit 1) LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND ND ND ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD Totalfor od Cl ND ND ND ND C. Particulates chromlum-51 Cl LLD LLD LLD LLD m2'1)gan8"-54 Ci LLD LLD LLD LLD cobalt-57 Ci LLD LLD LLD LLD cgbalt-58 Ci LLD LLD LLD LLD cob~t-60 Ci LLD LLD LLD LLD ~nc-65 Ci ~ ~ LLD LLD LLD LLD selenlum-75 Ci. LLD LLD LLD LLD zls;conlum/nloblum-95 Cl LLD LLD LLD LLD zirconlum/n~97 Ci LLD LLD LLD LLD ~Jum-134 Ci LLD LLD LLD LLD ceslum-137 Cl LLD LLD LLD LLD ~um-141 Cl LLD LLD LLD LLD cerlum-144 Cl ~ LLD LLD LLD LLD strontlum-89 Ci LLD LLD LLD LLD slronth,im-90 Ci LLD LLD LLD LLD Total for pl!lried Ci ND ND ND ND D. Tritium h r en-3 Cl 3.27E-03 6.05E-03 7.06E-04 O.OOE+OO LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND LLD LLD LLD ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND 1.00E-02

Form 1/2-ENV-01.05.F01 (page 24 of 39), Rev 5 Beaver Valley Power Station - Unit 1 RTL# A9.690E, Page 6 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 1 C-GC1 Gaseous Effluents - Ground Level Continuous Releases (Unit 1) LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND ND ND ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND ND ND ND C. Partlculates chrom,i~m-61 Ci LLD LLD LLD LLD mano~ Ci LLD LLD LLD LLD ~ Ci LLD LLD LLD LLD cobalt-58 Ci LLD 3.33E-06 LLD LLD cobalt-60 ~ Ci LLD LLD LLD LLD zlnc-65 Ci LLD LLD LLD LLD selenium-7~ Ci LLD LLD LLD LLD nloblul'(l-95 Cl LLD LLD LLD LLD zln;,onlum-95 Ci LLD LLD LLD LLD cesium-134 Ci LLD LLD LLD LLD cesium-137 Cl LLD LLD LLD LLD cerlum-141 Cl LLD LLD LLD LLD cerlum-144 Ci LLD LLD LLD LLD strontluni-89 Ci LLD LLD LLD LLD ~ntlum-90 Ci LLD LLD LLD LLD Total for oerlod Ci ND 3.33E-06 ND ND D. TTitium Ci 2.88E+00 1.62E+00 1.09E+O0 2.10E+00 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND LLD LLD LLD ND LLD LLD LLD 3.33E-06 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD 3.33E-06 7.69E+00 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 25 of 39), Rev 5 Beaver Valley Power Station - Unit 2 RTL # A9.690E, Page 7 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 1 C-GB2 Gaseous Effluents - Ground Level Batch Releases (Unit 2) LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND ND ND ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD Totalfor od Ci ND ND ND ND -~ C. Particulates ch~tnium;.s1 Ci LLD LLD LLD LLD Ill-r~

_: i Ci LLD LLD LLD LLD cobalt-57 Cl LLD LLD LLD LLD cobalt.a Ci LLD LLD LLD LLD cobalt.SO Ci LLD LLD LLD LLD zinc-65 Cl LLD LLD LLD LLD seleolum.,.75 Ci LLD LLD LLD LLD zirconll,Ull/nloblum-95 Ci LLD LLD LLD LLD zirconlum/nll)blum-87 Ci LLD LLD LLD LLD ceslum-134 Cl LLD LLD LLD LLD cesJum-137 Ci LLD LLD LLD LLD cerlum-141 Ci LLD LLD LLD LLD cerium-144 Ci.

LLD LLD LLD LLD $ll'ontium-89 Ci LLD LLD LLD LLD strontium-90. Cl LLD LLD LLD LLD Total for period Ci ND ND ND ND D. Tritium Ci 1.72E-02 3.07E-01 9.66E-03 1.03E-02 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND LLD LLD LLD ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND 3.44E-01

Form 1/2-ENV-01.05.F01 (page 26 of 39), Rev 5 Beaver Valley Power Station - Unit 2 RTL # A9.690E, Page 8 of 21 Annual Radioactive Effluent Release Report Calendar Year -2020 Table 1 C-GC2 Gaseous Effluents - Ground Level Continuous Releases (Unit 2) LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND LLD LLD LLD ND C. Particulates chromium-61 Cl LLD manaanese-54 Cl LLD cobelt.;&7 Cl LLD cobalt-58 ~ Ci LLD cobalt.<<> Cl LLD zinc-65 Ci LLD aelenlum-75 Cl 5.57E-07 1.- nlobiun,-95 Cl LLD zlrconlum-97 Cl LLD ceslum-134 Cl LLD ceslum-137 Cl LLD cerium-141 Cl. LLD cerium-144 Cl LLD strofJtium-89 Cl LLD stronti\\,lm-90 Ci LLD Tqtal for Deriod Ci 5.57E-07 D. Tritium Ci 1.58E+01 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND LLD LLD LLD ND 7.27E-05 1.02E-06 LLD 1.94E-04 2.37E-05 LLD LLD 6.46E-05 LLD LLD LLD LLD LLD LLD LLD 3.56E-04 2.71E+01 6.72E-02 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD 6.72E-02 LLD LLD LLD ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND 1.58E+01 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND LLD LLD LLD ND LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND 2.45E+01 6.72E-02 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD 6.72E-02 LLD LLD LLD ND 7.27E-05 1.02E-06 LLD 1.94E-04 2.37E-05 LLD 5.57E-07 6.46E-05 LLD LLD LLD LLD LLD LLD LLD 3.57E-04 8.32E+01 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1 /2-ENV-01.05.F01 (page 27 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 RTL# A9.690E, Page 9 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 2A Liquid Effluents - Summation Of All Releases D. Gross alptla radioactivity Ci (total release) E. Volume of waste reteased L (prior to dilution) 1.87E-02 2.55E-02 2.43E-02 9.16E-02 4.02E-06 5.16E-09 5.18E-09 4.91E-09 3.74E-01 5.10E-01 4.86E-01 9.16E-01 2.45E+02 1.84E+01 6.04E+01 4.99E+02 5.25E-05 3.72E-06 1.29E-05 2.67E-05 5.25E+OO 3.72E-01 1.29E+OO 2.67E-01 1.90E-04 1.11 E-04 1.42E-04 ND 4.43E-04 LLD 1.06E+07 2.39E-11 2.87E-11 1.20E-05 1.43E-05 LLD LLD 1.04E+07 1.1 0E+07 LLD 1.04E+07 2.37E-11 1.19E-05 LLD 4.24E+07 F. Volume of dilutlcm water used L 4.37E+09 4.65E+09 4.93E+09 4.68E+09 1.86E+ 10 LLD = Below the Lower Limit of Detectability, in uCi/mL (Table 4) A.3 is based on a historical PA-DEP guide of 10 Ci/yr B.3 is based on a ODCM limit of 1.00E-2 uCi/mL C.3 is based on a ODCM limit of 2.00E-04 uCi/mL The values listed at F. are the volumes during actual liquid waste discharge periods. The total dilution volume for a continuous calendar quarter is approximately 1E+10 liters for BVPS-1 & 2 (ie.; ~ 22,800 gpm is the total dilution flowrate from the site) 26.1% 25.0% 27.0% NIA 11.2% 22.9%

Form 1/2-ENV-01.05.F01 (page 28 of 39), Rev : Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table2B-B Liquid Effluents - Batch Releases tin-125 kMIM't~1 ioa,..'{a:, lodlr,e.'1$5 0Mhn-1M Cl ......... 137 Cl ~-140 Cl -141 Cl ~144 Ci il'OIHIS Cl nkibl-63 et stn>nllum-19 Cl strontllJ1"*?0 Cl Tohlfor~ Cl B.Trttum I ~ ~ I Cl I Tolal for natiod

I Cl I

. C. Dissolved & Entrained Guts .,_n.41 Cl ~. ~ Cl lN!non-131m Cl _,...133 Cl ..-1,.Jm Cl _,~ ~ Cl -1~

, l C_i

'xen_on-137

- ,, I.

Cl Tolalforoerlod I Cl LLD= Below the Lower Um~ of Detectability, in uCi/mL (Table 4) ND = None Detected 2.13E-04 2.37E-05 LLD LLD LLD LLD LLD 4.25E-04 1.59E-04 1.73E-04 2.49E-04 2.39E-04 LLD 1.47E-04 6.58E-05 8.09E-05 3.68E-05 6.22E-05 2.66E-03 4.73E-03 1.12E-02 7.24E-03 6.24E-03 5.37E-03 LLD LLD LLD 7.87E-06 4.62E-06 1.01f:.:05 LLD LLD 8.35E-05 8.17E-06 LLD LLD 2.60E-04 2.30E-04 4.24E-04 1.01E-04 1.28E-04 1.38E-04 2.57E-05 LLD 6.59E-05 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD 1.20E-04 LLD LLD LLD LLD 5.80E-05 6.42E-05 LLD 9.98E-05 6.54E-04 9.64E-05 LLD 6.72E-05 4.41E-05 LLD LLD LLD LLD LLD LLD LLD LLD LLD 4.53E-03 1.63E-03 6.B0E-03 3.11E-04 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD 1.96E-05 6.09E-05 3.15E-04 LLD LLD LLD LLD LLD LLD LLD LLD LLD 7.11E-03 3.91E-03 4.22E-04 LLD LLD LLD 1.69E-05 LLD LLD 5.14E-06 2.42E-06 LLD 2.29E-02 1.87E-02 2.SSE-02 1.75E+02 I 2.45E+02 I 1.83E+01 1.75E+02 I 2.45E+02 I 1.83E+01 LLD LLD LLD LLD LLD LLD LLD LLD LLD 1.90E-04 1.11E-04 LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD 1.42E*04 1.90E-04 1.11E-04 1.42E-04 Rn#A9.690E, Page 10 of 21 LLD 2.37E-04 LLD LLD LLD 5.84E-04 2.69E-04 9.30E-04 LLD 2.13E-04 1.37E-04 3.17E-04 5.18E-03 2.40E-02 6.57E-03 2.54E-02 LLD LLD LLD 2.26E-05 LLD 8.35E-05 3.67E-06 1.18E-05 1.39E-04 1.051:4)3 LLD 3.67E-04 5.71E-05 1.49E-04 LLD LLD LLD LLD LLD LLD LLD 1.20E-04 LLD LLD LLD 1.22E-04 2.16E-05 8.72E-04 3.07E-05 1.42E-04 LLD LLD LLD LLD LLD LLD 8.00E-03 2.10E-02 LLD 3.11E-04 LLD LLD LLD LLD LLD LLD LLD LLD 2.44E-04 6.40E-04 LLD LLD LLD LLD LLD LLD 3.67E-03 1.51E-02 LLD LLD LLD 1.69E-05 LLD 7.56E-06 2.43E-02 9.14E-02 I 6.04E+01 I 4.99E+02 I 6.04E+01 I 4.99E+02 LLD LLD LLD LLD LLD LLD LLD 3.01E-04 LLD LLD LLD LLD LLD LLD LLD 1.42E-04 ND 4.43E-04 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 29 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 RTL# A9.690E, Page 11 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 2B-C Liquid Effluents - Continuous Releases LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD lodlnlt-116 CJ LLD cealum-134 Cl LLD ceslum-U7 Ct LLD blrlumllanfhanum-140 Cl LLD certum-141 Cl LLD certum-14' Cl LLD lron.66 Cl LLD strontium~ 01 LLD strontlum-90 ~I LLD Total f~r period Cl ND ~- B. Trltum hyd~ Cl I 1.19E-01 t~ for period Ci I 1.19E-01 C. Dissolved & Entrained Gases NIOIM1

Cl LLD krYJ>ton-85 Cl LLD xenori-13111!.

Cl LLD xenon-113 Cl LLD xe119n-13.3m Cl LLD x~135 . CJ LLD xenon-135m Cl LLD Total for period Cl ND LLD= Below the Lower Limtt of Detectability, in uCl/mL (Table 4) ND = None Detected LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND ND ND ND I 3.33E-02 I 3.74E-02 I 3.00E-02 I 2.20E-01 I 3.33E-02 I 3.74E-02 I 3.00E-02 I 2.20E-01 I LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD LLD ND ND ND ND

Form 1/2-ENV-01.05.F01 (page 30 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 3A Solid Waste And Irradiated Fuel Shipments (Part 1 of 3) 0.00 % 0.00 % 0.00 % 0.00 % 0.00 % 0.00 % 0.00 % 0.00 % 0.00 % 0.00 % 0.00 % 0.00 % 0.00 % 3.Number 0 a.Type LSA 0 of TypeA 0 Container TypeB 0 Used Large Quantity 0

b. Solidification Cement 0

0 0 0 0 0 0 0 0 0 0 0 (1) Since container volumes are provided by the burial site, a calculational error of zero is assumed. 0.59 % 0.00 % 0.47 % 12.80 % 0.20 % 0.33 % 20.20 % 0.05 % 54.50 % 0.07 % 0.15 % 7.56 % 1.20 % 4 1 0 3 0 0 0 4 4 0 3 1 0 2 0 (2) Percent values for any nuclide that are <0.01 % are not shown on this table. Data is available upon request. RTL# A9.690E, Page 12 of 21 I I I I I I I I I I I I I. I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 31 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 3B Solid Waste And Irradiated Fuel Shipments (Part 2 of 3) 0.86 % 24.20 % 9.83 % 22.50 % 0.00 % -~..,

-,:t:,:,:-,_..

~- -:~.; :;. :.,:.~fy **;.:~- *f 20.00 % 0.84 % 1.89 % 0.00 % 0.99 %

Ag-110m 0.00 %

0.00 % Sb-125 3.01 % 1-129 0.00 % Cs-134 0.00 % Cs-137 0.35 % Ce-144/Pr-144 0.00 % Pu-241 0.00 % .. 3. Number of Sfllpmenfs 1.22 % 0.00 % 6.67 % 0.77 % 15.30 % 13.30 % 18.60 % 0.00 % 14.90 % 0.39 % 14.30 % 0.00 % 9.14 % 0.74 % 1.08 % 1.80 % 0.00 % 0.00 % 1.47 % 0.00 % 0.00 % RTL# A9.690E, Page 13 of 21 fb

a. ;r t"-"'-"'---L_SA ______..,._-+----3--+----1----1

~~;..... ot

....,,,!,'II ~ T:" ~ Type A'III 11 0 0 i~\\t'\\' Conta1ner ~. ..... Type B O o 1~ o ~Used = ---La-rge----Q-u-antlty _________ o ______ o __ .. b. Solidlfication Cement o o _,,-:a Agent UreaFormaldehyde O O -~ Used None ~ 3 c.ModeM Transport 1111:1~ a,, .d. Final. !!J Destlpation.. ...D. r 10 CFR Ptrt 61" Truck 3 Ran o Other m.. 0 Oak Ridge, TN 3 Wampum, PA. o Class A 3 ClassB 0 ClassC O > ClassG '11 0 (1) Since container volumes are provided by the burial site, a calculational error of zero is assumed. 0 0 0 0 0 0 (2) Percent values for any nuclide that are <0.01 % are not shown on this table. Data is available upon request.

Form 1/2-ENV-01.05.F01 (page 32 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 3C Solid Waste And Irradiated Fuel Shipments (Part 3 of 3) of Container Used

b. Solidification Agent Used c.Modeof Transport

d. Final Destination

e. Waste Class per 10 CFR. Part 61

~Quantity Cement Ul'Hfonnaldehyde None Truett Rall Other Oak Ridge, TN Bamwell,SC Class A OlassB ClassC >OlassC B. No Irradiated Fue1 Shipments 0 % 0 % 0 % 0 % 0 % 0 % 0 % 0 % 0 % 0 % 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ~ 0 % 0 % 0 % 0 % 0 % 0 % 0 % 0 % 0 % 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 (1) Since container volumes are provided by the burial site, a calculational error of zero is assumed. RTL# A9.690E, Page 14 of 21 0.0% (1 ) 0.0% (2) Percent values for any nuclide that are <0.01 % are not shown on this table. Data is available upon request. I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Fonn 1/2-ENV--01.05.F01 (page 33 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 4 Lower Limits Of Detectability (LLD) 1.00E-OS U2E-OS 2.0IIE-411 5.ISE-OS ' 1.2ie-oa' 4.51E-07 1.04E--07 U1E-oa 1.39E-oll 1.00E-06 ' i.S6E--08 1.111E-oll 4.55E--08 1.13E-oll 9.71E-o9 1.116E-08 3.58E-oll SE..07 SE-07 SE-07 SE-07

,5: ,z; :/;~,r;;; :: :,: ~: ~, ;; )f:\\%J.;'t'f(~J.;'~;{J*;§;

3.S6E-06 1E-OS 8.1161:-09 1E-05 2.55E-OII 1e-os 3.38E-08 1E-OS (1) 5.00E-08 SE-OB (1) 5.00E-08 SE-08 1.64e:oa SE.07 9.31E-09 SE.07 1E-04 1.10E-08 SE-07 USE--08 1E--04 2.0IIE-08 SE-07 3.54E-07 1E--04 7.117E-08 SE-07 4.SOE-OS 1E--04 1.10E-08 SE-07 4.38E-08 1E--04 9.112E-09 SE-07 3.11£-08 1E-04 7.00E-09 SE-07 USE-07 1E-04 3.32E-08 SE-07 5.72E--08 1E--04 1.31E-08 1E-06 6.68E-08 1E-04 1.51E-08 SE-07 3.21E-07 1E-04 6.95E-08 SE-07 1.B9E-06 1E-04 4.53E-07 1E-OS x.taa 7.16E-08 1E-04 1.98E-oll 1E-05 x.-1aa. 3.93E-07 1E-04 9.20E-08 1E-OS X.-UI 4.70E--08 1E-04 1.10E-08 1E-OS Xe-1311n 1.04E-07 1E-04 2.35E-08 1E-05 X.-137 B.92E-07 1E-04 2.03E-07 1E-05 Xe-'ISI 2.43E-07 1E-04 5.66E-08 1E-OS C.-134 4.42E-OB 1E-04 9.94E-09 SE-07 C.-117 5.BSE-08 1E-04 1.31E-08 SE-07 Ba-131 1.70E-07 1E-04 4.07E-OB, SE-07 lla-140 1.32E-07 1E-04 3.00E-08 SE-07 La-HO 1.13E-07 1E-04 2.42E-08 SE-07 Ce-141 B.10E-OS 1E-04 1.97E-OB SE-07 Ce-144 2.89E-07 1E-04 7.10E-08 5.E-07 ~ (1) 1.00E-07 1E-07 ( 1) Sample analyses perfonned by a contractor laboratory. (2) These LLD calculations contain a default weekly continuous sample volume of 1.43E+8 cc. Therefore, grab sample LLD values reflect a different volume (ie; 10 cuft or 2.B3E+5 cc). (3) The calculated LLD's are for Unit 2 Detector 7, except those denoted by (1), are from a counter/detector calibration on 3/31/20. These values are typical for other counter/detectors used for effluent counting at BVPS. (4) Based on counting 50 ml of the water that was bubbled through a 20 liter air sample. RTL# A9.690E, Page 15 of 21 6.76E-14 1E-11 2.0SE-13 1E-11 2.72E-13 1E-11 1E-11 2.36E-13 1E-11 1.95E-13 1E.-11 1.52E-13 1E-11 2.04E-13 1E-11 1.16E-12 1E-11 7.15E-14 1E*11 1.04E-13 1E-11 1.16E-13 1E-11 3.33E-13 1E-11

1.24E-13 1E-12 1.30E-13 1E-10 2.03E-13 1E-11 4.53E-13 1E-11 4.00E-13 1E-11 2.59E-13 1E-11 1.3BE-13 1E-11 4.66E-13 1E-11 3.51E-15 1E-11

Form 1/2-ENV-01.05.F01 (page 34 of 39), Rev 5 Beaver Valley Power Station - Unit 1 RTL# A9.690E, Page 16 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table SA Assessment Of Radiation Doses (Unit 1) 0.0570 0.0789 4.32E-03 0.0865 3.27E-03 0.1800 3.52E-03 0.2346 2.96E-03 0.1973 2.32E-03 0.0430 2.45E-03 0.0489 1.40E-04 0.0028 3.67E-04 0.0463 2.88E-03 0.0576 1.54E-03 0.0309 1.321:-03 0.0454 2.64E-03 0.0528 6.01E-04 0.0120 7.06E-04 0.0856 5.03E-03 0.1007 1.91 E-03 0.0383 1.64E-03 Batch & %of %ef Continuous .Dase OOCM Dose ODCM Dose Dose Releaaea Limit Limit {2) Gamma Air 5.67E-07 0.0000 0.00E+00 0.0000 2.15E-05 0.0004 5.28E-11 (2) Beta Air. 8.51E-10 0.0000 0.00E+00 0.0000 3.36E-08 0.0000 2.49E-13 Bone 3.91E-08 0.0000 6.51E-07 0.0000 7.05E-09 0.0000 0.00E+00 0 Liver 1.07E-02 0.1427 5.96E-03 0.0795 4.14E-03 0.0552 8.14E-03 R Total Body 1.07E-02 0.1427 5.96E-03 0.0795 4.14E-03 0.0552 8.14E-03 G Thyroid 1.07E-02 0.1427 5.96E-03 0.0795 4.14E-03 0.0552 8.14E-03 A Kidney 1.07E-02 0.1427 5.96E-03 0.0795 4.14E-03 0.0552 8.14E-03 N Lung 1.07E-02 0.1427 5.96E-03 0.0795 4.14E-03 0.0552 8.14E-03 ~3),Gl..&..LI 1.07E-02 0.1427 5.96E-03 0.0795 4.14E-03 0.0552 8.14E-03 ( 1) These doses are listed in mrem; they are calculated for the maximum individual for all batch liquid effluents 0.0653 1.44E-02 0.1544 1.15E--02 0.0073 5.10E-03 0.0264 8.06E-03 0.0141 6.22E-03 0.0328 1.29E-02 Umit 0.0000 2.21E-05 0.0000 3.45E-08 0.0000 6.97E-07 0.1085 2.89E-02 0.1085 2.89E-02 0.1085 2.89E-02 0.1085 2.89E-02 0.1085 2.89E-02 0.1085 2.89E-02 (2) These doses are listed in mrad; they are calculated at the site boundary for batch & continuous gaseous effluents (0.4 miles NW) (3) These doses are listed in mrem; they are calculated for the most likely exposed real individual (child) via all real pathways at 0.89 miles NW. (4) Unit 1 gaseous dose includes ALL continuous releases from the shared Process Vent Limits used for calculation of percent (%) are from ODCM procedure 1/2-0DC-3.03, Attachment H Control 3.11.1.2, Attachment L Control 3.11.2.2, and Attachment M Control 3.11.2.3 (considered to be the design objectives). 0.1439 0.3831 0.0510 0.0806 0.0622 0.1286 %of, OOCM Limit 0.0002 0.0000 0.0000 0.1929 0.1929 0.1929 0.1929 0.1929 0.1929 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 35 of 39), Rev 5 Beaver Valley Power Station - Unit 2 RTL# A9.690E, Page 17 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 5B Assessment Of Radiation Doses (Unit 2)

. *,*:jf:tt2 u *utdl:filuemt * ---:

<~: * * *.** * \\_ **t'*.' .. **,*r.~~-.., -' ~~. * *~\\(~f;-::f *. *;!~?f. :: :..:*;~;~'t:,J,l!i:. * .., )~~~i(. }tf~ ;J;t

.:-:.~~~~-.~.::-~-~~;

~.. ~ ... ~:.. 1etQilarter

..**2nt1Quarte, ***

3rd~

4tJIQ~.* :. Calendar Year

%of

%'qi .... ~of. %of

%of.

Batch - Dose ODCM *Dose oDtM Dose *obcM Dose 00CM ~qse ODCM rt~ *- . -Uinlf. *' ~- ~-* Lhn1t'

- ?itmlt
Limit

,,~"'... .Lijm1t Boriti' 6.41E-04 0.0128 1.28E-03 0.0255 3.05E-03 0.0610 2.13E-03 0.0427 7.10E-03 0.0710 0 Liver 2.85E-03 0.0570 3.95E-03 0.0789 4.32E-03 0.0865 3.27E-03 0.0653 1.44E-02 0.1439 .R. Tc,Ja_l_fqdy 2.70E-03 0.1800 3.52E-03 0.2346 2.96E-03 0.1973 2.32E-03 0.1544 1.15E-02 0.3831 G Th.ffi>l(I... '. 2.15E-03 0.0430 2.45E-03 0.0489 1.40E-04 0.0028 3.67E-04 0.0073 5.10E-03 0.0510 A Kldnit***"' 2.31E-03 0.0463 2.88E-03 0.0576 1.54E-03 0.0309 1.32E-03 0.0264 8.06E-03 0.0806 N Lung 2.27E-03 0.0454 2.64E-03 0.0528 6.01E-04 0.0120 7.06E-04 0.0141 6.22E-03 0.0622 {1) GI-LU 4.28E-03 0.0856 5.03E-03 0.1007 1.91 E-03 0.0383 1.64E-03 0.0328 1.29E-02 0.1286 Unit 2 Gaseous Effluents 1atQuarter

2nd Quarter 3rd Quarter 4th Quarter Calendar Year 1~

Batch',!& %of %of %of %of ii' Continuous Dose ODCM Dose ODCM Dose ODCM Dose ODCM Dose Releases Limit Limit Limit Limit

12) Gal1)ma Air 0.00E+0O 0.0000 6.32E-04 0.0126 1.83E-03 0.0366 0.00E+00 0.0000 2.46E-03 l~) Beta Air 0.00E+00 0.0000 9.76E-07 0.0000 6.45E-04 0.0065 0.00E+00 0.0000 6.46E-04

\\ Booe 1.12E-07 0.0000 2.96E-04 0.0039 0.00E+O0 0.0000 0.00E+00 0.0000 2.96E-04 Liver 5.38E-02 0.7173 9.47E-02 1.2627 5.22E-02 0.6960 8.15E-02 1.0867 2.82E-01

~ l9n~lPodv.. 5.38E-02 0.7173 9.47E-02 1.2627 5.22E-02 0.6960 8.1 5E-02 1.0867 2.82E-01

'If :J'fi!!.'."-~~

II 5.38E-02 0.7173 9.46E-02 1.2613 5.22E-02 0.6960 8.15E-02 1.0867 2.82E-01 y,ro a ~,l Kfdiiey 5.38E-02 0.7173 9.46E-02 1.2613 5.22E-02 0.6960 8.15E-02 1.0867 2.82E-01 ftt LJmg 5.38E-02 0.7173 9.50E-02 1.2667 5.22E-02 0.6960 8.15E-02 1.0867 2.83E-01 {.3jJ G~ L.bi.,,, 5.38E-02 0.7173 9.47E-02 1.2627 5.22E~02 0.6960 8.15E-02 1.0867 2.82E-01 (1) These doses are listed in mrem; they are calculated for the maximum individual for all batch liquid effluents (2) These doses are listed in mrad; they are calculated at the site boundary for batch & continuous gaseous effluents (0.4 miles NW) (3) These doses are listed in mrem; they are calculated for the most likely exposed real individual (child) via all real pathways at 0.89 miles NW. Limits used for calculation of percent (%) are from ODCM procedure 1/2-0DC-3.03, Attachment H Control 3.11.1.2, Attachment L Control 3.11.2.2, and Attachment M Control 3.11.2.3 (considered to be the design objectives). %of ODCM Limit 11 0.0246 0.0032 0.0020 1.8813 1.8813 1.8807 1.8807 1.8833 1.8813

Form 1/2-ENV-01.05.F01 (page 36 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table6 RTL# A9.690E, Page 18 of 21 There were two Effluent Monitoring Instrumentation Channels that were not returned to operable status within 30 days.

1) Unit 1 discharge structure blowdown weir flow transmitter FT-1CW-101-1 and cooling tower blowdown flow transmitter FT-1CW-101 Cooling tower biowdown flow transmitter FT-1 CW-1 O 1 and discharge structure blowdown wier flow transmitter FT-1 CW-1 O 1-1 remained out of service from September 9, 2020 and September 15, 2020, respectively, through the end of the year.

During calibration work, technicians determined that each transmitter had frayed wires and nonfunctioning sensors which required repairs. Additionally, the replacement parts for the cooling tower blowdown flow transmitter were determined to be obsolete and unobtainable. Cooling tower blowdown flow transmitter 2CWS-FT101 was used as the 1st Alternate method for calculating the dilution rate in regards to liquid waste discharges, however on December 2, 2020, 2CWS-FT101 failed off scale high, and was not returned to service through the end of the year. Dilution rate can be calulated during actual discharges by the completion of 1 MSP-31.06-1, F-CW101-1 Outfall Structure Discharge Flow Calibration, ever four hours.

2) Unit 2 effluent radiation monitors 2HVS-RQ1098/C/D Containment ventilation gaseous effluent radiation montiors 2HVS-RQ109B/C/D remained out of service from August 17, 2020 through the end of the year. The monitors were removed from service for performance of 2MSP-43.33-I, Elevated Release Gas Radiation Monitor 2HVS-RQl109B, C, and D Calibration, during which the velocity probe was sent out to the vendor for calibration. The probe was lost during shipping, and a new probe was ordered form the vendor, with the monitors remaining out of service until the new part is recieved. Compensatory grab samples are being taken in accordance with ODCM requirements.

I I I I I I I I I I I I I I I I 1-1

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 37 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 RTL# A9.690E, Page 19 of 21 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 7 Total Dose Commitments and Total Effective Dose Equivalents mrem 40 CFR 190 Umlt 1.45E-02 O.00E+00 1.45E-02 0.06% 3.40E-01 O.00E+00 3.40E-01 1.36% 3.37E-01 0.00E+00 3.37E-01 1.35% Thyn,id 3.21 E-01 0.00E+00 3.21E-01 0.43% Klclney 3.27E-01 0.00E+00 3.27E-01 1.31% LilM 3.24E-01 0.00E+00 3.24E-01 1.30% ~ 3.37E-01 O.00E+00 3.37E-01 1.35% (1) The cumulative dose contributions from liquid and gaseous effluents were determined in 8000rdance with the~ CONlROlS & SURVEILLANCE REQUIREMENTS listed' in ODCM ~re 1/2-00C-3.03. The ~se commitment limit$ for40_Cf8190 MEMBERS OF*THE P~-te (ODCM :t/2~.03 Conirot 3.11.4.1) are *follows: a) < or* 25 mrem I calendar year (for the to1al body, or any organ except the thyroid) b <or* 76 mrem /-calendar for the ro (2) The dose contribution listed for the total body is for Direct Racfiation. This was calcu1ated by comparing offsite TLD exposure at the ODCM controlling location (0.8 miles NW; Midland, PA) to n.o exposure at the REMP conti:ol location 16.5 miles SSW; Weirton, Compliance to 100 mrem Limit of 18 CFR 20.1301 For T~tal Effective Dose Equivalent Pursuant to 10 CFR 20.1301 (a)(1 ), the Total Effective Dose Equivalent from licensed operation to the maximum individual during the report period, is 6.24 mrem. This is a summation of Direct Radiation Exposure (calculated by comparing the maximum of all perimeter TLD exposures to TLD exposure at the REMP control location) plus Effluent Doses (calculated per the ODCM). Members of the Public Doses Due To Their Activities Inside The Site Boundary The radiation doses for MEMBER(S) OF THE PUBLIC due to their activities inside the site boundary are not greater than the doses listed in this table to show compliance with 40 CFR Part 190 or 10 CFR 20.1301. Evaluations have shown that exposure time for individuals not occupationally associated with the plant site is minimal in comparison to the exposure time considered for the dose calculation at or beyond the site boundary. Therefore, a separate assessment of radiation doses from radioactive effluents to MEMBER(S) OF THE PUBLIC, due to their activities inside the site boundary, is not necessary for this report period. Compliance with 10 CFR 72.44(d)(3) f.or Dry Fuel Storage While there are minimal gaseous and liquid effluents specifically from the Independent Spent Fuel Storage Installation (ISFSI), there is a contribution from Direct Radiation. The doses listed in this section include the contributions from the ISFSI.

Form 1/2-ENV-01.05.F01 (page 38 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 8 RTL # A9.690E, Page 20 of 21 There were three Offsite Dose Calculation Manual Surveillance Deficiencies during this report period.

1) Missed ODCM surveillances (CR-2020-01743) - Carried over from 2019 Between the months of April 2019 and February 2020, there were multiple occasions of five types of ODCM surveillances missed due to a combination of poor work instructions, human performance errors and employee turnover caused by a vacant position. These errors were identified in and will be corrected by the site Corrective Action Program. Post evaluation after discovery ensured that no ODCM dose or dose rate limits were exceeded.

The specific surveillances were: SR 4.1 1.1.3.1, 31-day dose projection for liquid effluents, SR 4.11.4.2.1, 31-day dose projection for gaseous effluents, SR 4.11.2.2.1, cumulative dose contributions from noble gases SR 4.11.2.3.1, cumulative dose contributions from gaseous releases of particulates and iodines SR 4.11.1.2.1, cumulative dose contributions from liquid effluents,

2) Groundwater Extraction Well ISCO pump knocked over (CR-2020-03889)

On May 1, 2020, the ISCO sample pump that collected the weekly extraction well groundwater sample for tritium was discovered to have been knocked over sometime during the preceding week, due to storms and heavy rainfall. This resulted in the 7-day composite sample being lost, and a missed surveillance of the extraction well. The sample pump was weighed down with rocks and fastened to a nearby railing to prevent similar occurences from happening in the future, and the lost weekly sample was noted in the groundwater report.

3) Missing ODCM Sample Media {CR-2020-04014)

During the 2R21 refueling outage, it was discovered that the sample media from the Unit 2 Equipment Hatch effluent air sampler (Gooseneck) for the final week of the outage could not be located to complete the ODCM weekly surveillance. The Unit 2 RBC and Equipment Hatch had already been sealed and the equipment had already been removed from the area at the time of discovery, and an exhaustive search of Radiation Protection containment storage and supply boxes failed to turn up the missing media, nor could any record of the sample media being counted be located on count room computers. Previous Equipment Hatch gooseneck samples were assessed, and it was determined that there was a reasonable certainty that the missing sample media would have contained radioisotopes that needed to be recorded in a discharge permit, had they been collected and counted. RWDA-G-U2GC2020-128 was generated, based on a previous Equipment Hatch sample, to capture the approximate isotopic mix released during the final week of 2R21, and an Outage Poll was submitted to RP to include the collection of the Equipment Hatch goosneck sample at the end of future Unit 1 and Unit 2 outages. I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Form 1/2-ENV-01.05.F01 (page 39 of 39), Rev 5 Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Table 9 RTL# A9.690E, Page 21 of 21 w i ** : '.

- ~-.. "

~ -....,,. -~ There was ohe (1) change made to the ODCM during the report period. See ODCM proce<jure 1/2-OOG-1.01, "ODCM: Index, Matrix and History ODCM Changes" for a complete description of the change and the change justification. A brief description of the change is as follows:

1) Change (46) to the Ot>CM (Effective July 2020)

<> Procedure 1/2-0DC-1.01, "ODCM: Index, Matrix and History of ODCM Changes" (Rev 27) Updated the History of ODCM changes to include this change and removed controls from Attachment C Table F:2a. <> Procedure 1/2-ODC-2.01, "ODCM: liquid Effluents" (Rev 18) Removed the setpoints and refences for RM-1DA-100 based on the removal of the effluent flow path to the river monitored by RM-1DA-100 and abandonment of radiation monitor RM-1DA-100 per ECP 19-0230. <> Procedure 1/2-ODC-3.03, "ODCM: Controls for RETS and REMP Progams" (Rev 18) Removed the surveillance requirements for RM-1DA-100 based on the removal of the effluent flow path to the river monitored by RM-1DA-100 and abandonment of radiation monitor RM-1DA-100 per ECP 19-0230.

I I I I I I I I I I. I I I I I I I I I Beaver Valley Power Station - Units 1 & 2 RTL# A9.690E, Attachment 1 Annual Radioactive Effluent Release Report Calendar Year - 2020 Joint Frequency Distribution Tables As specified in the ODCM, an annual summary of houriy meteorologi~I data (in the form of joint frequelicy distribution) is provided for the calend~r year. In summary, the joint frequency distribution data is similar to previous years and close to long-term normals. - 1 The Meteorological Data Recovery for the calendar year met the mi_nimum requirement of at-le~st 90% (as specified in Section 5 of Revision 1 to Regulatory Guide 1.i3, Mf3teorological Monitoring Programs for Nuclear Power Plants). The actual Meteorological Data Recovery is shown in the following table: PERCENT RECOVERY OF IN_DIVIDUAL METEOROLOGICAL PARAMETERS 99.9% = Wind Sneed 35' 99.9% = Wind Saeed 150' 99.9% = Wind Soeed 500' 99_.9% = Wind Direction 35' 99.9% = Wi1Jd Direction _150' 99.9% =. Wi~d Direction 500'

96. 8% = Delta Temoerat1,1re ( 150' - 35' ) 1 P 96.8% = Delta Temoerature (500' - 35' ) 2P 96.7% = Temperature 35' 100.0% =

Precipitation 99.0% = Average Recovery of Individual Meteorological Parameters PERCENT RECOVERY OF COMPOSITE VARIABLE$ 96.8% = Wind Speed 35', Wind Direction 35', Delta Temperature 1P 96.8% = Wind Soeed 150', Wind Direction 150', Delta Temoerature 1P 96.8% = Wind Soeed 500', Wind Direction 500', Delta Temoerature 2P 96.8% = Average Recovery of Composite Variables

. ~-::-~*:* ' *':'..

'"'. *.'.*'* -~ ~ - -* -* "~ttac1tment1:ctatffttjfiin*. . *. *' *-:~

!" ;. *. -.. -. : ~... ~ ~: *-

~ -* ' ~ -.r - -~ : Hourly meteorological data is not provided for specific periods of Abnormal Gaseous Release during the calendar quarters (as indicated in Regulatory Guide 1.21), for the following reasons:

1) All routine Gaseous Releases for the calendar year were determined to be within design objectives, where as, the ODCM Dose Limits and the ODCM Dose Rate Limits are considered to be the design objectives.

2) There was one (1) Abnormal Gaseous Release during the calendar year, no design objectives were exceeded.

For a copy of the hourly meteorological data during the calendar quarters, contact Radiological Effluents Administrator at 724-682-7667.

I I I I I I I I I I I I I I I I Site: BY Period ofRKord-Elevado11: Speed: SP35P Stability Clul: A Whld Direction 0.6-3.5 N 41 NNE 44 NE 39 ENE 63 E 58 ESE 27 SE 21 SSE 15 s 25 SSW 18 SW 16 WSW 27 w 43 WNW 36 NW 31 NNW 48 Total 552 Calm Houn ot lnd11ded above for: Variable Direction Houn for: I:evalid Bown for: Nmber of Valid Hou.n for this Table: Total Houn for the Period: Page 1 of 16 Joint Frequency Dfltrfbution Hours at Each Wmd Speed and Direction Total Peiiod 01/01/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/25/202114:38 AilHoun Direetio11: 0135P DT150-35 Delta Tempetetwe Extremely Unstable Wind Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 >24.6 Total 96 0 0 0 0 137 49 0 0 0 0 93 13 0 0 0 0 52 23 0 0 0 0 86 27 0 0 0 0 85 11 0 0 0 0 38 5 0 0 0 0 26 10 0 0 0 0 25 26 0 0 0 0 51 67 5 0 0 0 90 64 27 0 0 0 107 105 48 2 0 0 182 185 39 1 0 0 268 102 22 0 0 0 160 78 6 0 0 0 115 73 2 0 0 0 123 934 149 3 0 0 1638 Total Period AIIHoun 594 Total Period

AIIHoun 0

T~Perlod AII.Houn 28!1: Total Period AIIHoun 1638 8783

Site: BY Period of Record= Elevatioa: Speed: SP35P Stability Clua: B Wind Directlo11 9.6-3.5 N 10 NNE 4 NE 9 ENE 8 E 3 ESE 3 SE 3 SSE 4 s 4 SSW 4 SW 6 WSW 7 w 4 WNW 7 NW 13 NNW 7 Total 96 Calm Hoon not lnduded above for: Variable Directio11 Hours for: hvalld Houn for: Namber of Valid Honn for this Table: Total Honn for the Period: Page 2 of 16 Hours at Each Wind Speed and Direction Total Peri(Hl 01/01/2020 01:00 - lWl/2020 23:00 Report Printed On: 03/25/202114:38 AllHoun Directio: D135P Lapse: DT150-35 Delta Temperature Moderately Unstable W~d Speed (mph) 3.6-7.5 7.6-ll.5 ll.6-18.5 18.6-24.5 >24.6 Total 3 0 0 0 0 13 6 0 0 0 0 10 3 0 0 0 0 12 1 0 0 0 0 9 3 0 0 0 0 6 0 0 0 0 0 3 0 0 0 0 0 3 0

o 0

0 0 4 3 0 0 0 0 7 2 1 0 0 0 7 16 11 1 0 0 34 21 11 1 0 0 40 10 11 0 0 0 25 11 5 0 0 0 23 6 2 0 0 0 21 6 1 0 0 0 14 91 42 2 0 0 231 Total Period ADHoun 594 Total Period ADHoan 0 Total Period ADHoun 284 Total Period ADHoun 231 8783 I I I I I I I' I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period of Record= Elevation: Speed: SP35P Stability Cla.a: C Whld DiRction 0.6-3.5 N 12 NNE 7 NE 13 ENE 9 E 4 ESE 2 SE s ~ 1 s 1 SSW 3 SW 6 WSW 5 w 14 WNW 8 NW 9 NNW 7 Total 106 Calm Honn DOt Included above for: Variable Dinction Honrs for: Invalid Boars for: Namber of Valid Hoan for tllil Table: Total Honn for tlte P~riod: Page 3 of 16 Joint Frequency Distribution Hours at Each Wmd Speed and Direction Total Period 01/01/2020 01:00 -11/31/2020 23:00 Report Printed On: 03/25/202114:38 All Hoon Directloll! D13SP Lapse: DTIS0-35 Delta Temperature Slightly Unstable Willd Speed (mph)' 3.7.5 7.6-12.5 12.18.5 18.24.5 >24.6 Total 5 0 0 0

0.

17 4 0 0 0 0 11 1 0 0 0 0 14 1 0 0 0 0 10 3 0 0 0 0 7 0 0 0 0 0 2 0 0 0 0 0 5 0 0 0 0 0 1 5 0 0 0 0 6 2 0 0 0 0 5 15 3 0 0 0 24 19 7 1 0 0 32 12 10 0 0 0 36 15 4 0 0 0 27 11 1 0 0 0 21 11 0 0 0 0 18 104 25 1 0 0 236 Total Peried ADHoun 594 Total Period ADHoun 0 Total Period AD.Houn 284 Total Period ADHoun 236 8783

Site: BV Period of Record* ElevatioD: Speed: SP35P Stability Cius: D Wiad Direction o.~.5 N 117 NNE 112 NE 128 ENE 117 E 78 ESE 32 SR 29 ~ 25 s 25 SSW 42 SW 44 WSW 63 w 78 WNW 72 NW 82 NNW 94 Total 1138 Calm Boun aot Included above for: Variable Directioll Boan for: Invalid Boan for: Number of Valid BOIIJ'B for this Table: Total Boun for the Period: Page 4 of 16 Report Printed On: 03/2512021 14:38 Joint Frequency Dhtrlbution Homs at Each Wind Speed and Direction Total Period All Hours 01/01/2020 01:00 - 12/31/2020 23:00 Direction: DDSP Lapse: DT150-35 Delta Tempe:tatwe Neutral Wind Speed (mph) 3.6-7.5 7.6-11.5 12.6-18.5 18.6-24.5 >2'1.6 Total 36 0 0 0 0 153 20 0 0 0 0 132 s 0 0 0 0 133 IO 0 0 0 0 127 14 0 0 0 0 92 3 0 0 0 0 35 2 0 0 0 0 31 2 0 0 0 0 27 18 0 0 0 0 43 35 4 0 0 0 81 108 46 1 0 0 199 164 60 3 0 0 290 156 82 3 0 0 319 136 23 0 0 0 231 76 3 0 0 0 161 71 0 0 0 0 165 856 218 7 0 0 2219 Total Period AlfBoun 594 Total Period AIIBoun 0 Total Period AIIBoun 284 Total Period AIIBoun 2219 8783 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I Site: BV Period of Record"'

Elevatioll!

Speed: SP35P Stability Clul: E Whld Directio 0.6-3.5 N 109 NNE 110 NE 128 ENE 182 E 185 ESE 148 SE 89 SSE 84 s 115 SSW 95 SW 60 WSW 47 w 49 WNW 43 NW 69 NNW 89 Total 1602 Calm Boan not lclnded above for: Variable Direcdoa Hours for: Invalid Honn for: NIDDber of Valid Hom forthil Table: Total Boan for the Period: Page 5 of 16 Report Printed On: 03/25/202114:38 Jo~t Frequepcy Distribution Hours at Each Wind Speed and Direction Total i;teriQd All Honn 01/01/2020 01:00 -12/31/2020 23:00 Directio11.: D135P Lapse: DTIS0-35 Delta Temperature Sllgl)tly~ Wind Speed (mph) 3.6-7.5 7.6-12.5 tl.6-18.5 18.6-24.!! >24.6 Total 8 0 0 0 0 117 2 0 0 0 0 112 1 0 0 0 0 129 6 0 0 0 0 188 6 0 0 0 0 191 1 0 0 0 0 149 0 0 0 0 0 89 3 0 0 0 0 87 22 0 0 0 0 137 44 3 0 0 0 142 71 18 0 0 0 149 87 29 3 0 0 166 65 21 0 0 0 135 32 2 0 0 0 n 15 0 0 0 0 84 21 1 0 0 0 111 384 74 3 0 0 2063 Total Period All Boan 594 Total Period All Honn 0 Total Period All Honn 284 Total Period All Honn 2063 8783

Site: BV Period of Record* Elevadoll: Speed: SP3SP Stability Cius: F Wind Dired:ioD 0.6-3.5 N 16 NNE 21 NE 32 ENE S6 E 109 ESE 220 SlC 180 SSE 108 s 80 SSW 36 SW 9 WSW 10 w 5 WNW 2 NW 9 NNW 6 Total 899 Calm Houn aot hlcluded above for: Variable DirectioB Houn for: hvaHd Houn for: Namber of Valid Houn for thil Table: Total Houn for tlae Period: Page 6 of 16 Joint Frequency Distribution Hours at Each Wm.d Speed and Direction Total Period 01/01/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/25/202114:38 All Hoon Direction: D13SP Lapw. DT150-35 Delta Tcmpcraturc Moderately Stable Wind Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 >24.6 Total 0 0 0 0 0 16 0 0 0 0 0 21 0 0 0 0 0 32 0 0 0 0 0 56 1 0 0 0 0 110 0 0 0 0 0 220 0 0 0 0 0 180 1 0 0 0 0 109 7 0 0 0 0 87 4 1 0 0 0 41 9 2 0 0 0 20 0 3 0 0 0 13 2 3 0 0 0 10 2 1 0 0 0 5 3 0 0 0 0 12 0 0 0 0 0 6 29 10 0 0 0 938 Total Period ADHoen 594 Total Period ADH0ttn 0 Total Period ADHoan 284 Total Period ADHoun 938 8783 I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period ofRecord-Elevation: Speed: SP35P Stability Clau: G W"md Direction 0.6-3.5 N 8 NNE 12 NE 21 ENE 42 E 75 ESE 124 SE 158 SSE 56 s 31 SSW 18 SW 6 WSW 5 w 4 WNW 5 NW 0 NNW 4 Total 569 Calm Honn not lnchtded above for: Variable Direction Honn for: Invalid Honn for: Number of Valid Honn for thil Table: Total Honn for tbc Period: Page 7 of 16 Jobat Frequency DWribution Hours at &ch Whid Speed mid Direction Total Period 01/01/2020 01:00 -12/31/2020 23:00 Report Printed On: 03/25/2021 14:38 AilHoUJ'B Direction: DDSP Lapse: DT150-35 Delta Ttmpetetwe Extremely stable Wind Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 >24.6 Total 0 ~ 0 0 0 8 0 0 0 0 0 12 0 0 0 0 0 21 1 0 0 0 0 43 0 0 0 0 0 75 0 0 0 0 0 124 0 0 0 0 0 158 0 0 0 0 0 56 2 0 0 0 0 33 1 0 0 0 0 19 1 0 0 0 0 7 1 1 2 0 0 9 1 I 0 0 0 6 0 0 0 0 0 5 0 0 0 0 0 0 0 0 0 0 0 4 7 2 2 0 0 580 Total Period ADH011n 594 Total Period AIIHoan 0 Total Period AD Hoon 284 Total Period ADHoun 580 8783

Site: BV Period of Record.. Elevation: Speed: SP35P Stability Clan: ALL WindDirectio 8.6-3.5 N 313 NNE 310 NE 370 ENE 4n E 512 ESE 556 SE 485 SSE 293 s 281 SSW 216 SW 147 WSW 164 w 197 WNW 173 NW 213 NNW 255 Total 4962 Calm Holll'!II ot Included above for: Variable Direction Hon for: hvalid Hean for: Number ofVaHd Boan for dab Table: Total Boan for tile Period: Page 8 of 16 Report Primed On: 03/25/l02114:38 Joint FJ:equeacy I>Wrlbution Hours at Each Wind Speed and Direction TotalPeriod All Honn 01/01/2020 01:00 - 12/31/2020 23:00 DirMdoll! D135P Lapse: DT150-35 Delta Tempctatwe Wind Speed (mph) 3.6-7.5 7.6-11.5 12.6-18.5 18.6-14.5 >24.6 Total 148 0 0 0 0 461 81 0 0 0 0 391 23 0 0 0 0 393 42 0 0 0 0 519 54 0 0 0 0 566 15 0 0 0 0 571 7 0 0 0 0 492 16 0 0 0 0 309 83 0 0 0 0 364 155 14 0 0 0 385 284 107 2 0 0 540 397 159 12 0 0 732 431 167 4 0 0 799 298 57 0 0 0 528 189 12 0 0 0 414 182 4 0 0 0 441 2405 520 18 0 0 7905 Tetal Period ADHoun 594 TetalPeriod ADHoun 0 Total Period ADHoun 284 Total Period ADHoun 7905 8783 I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period of Record"" Elevation: Speed: SP35P Stability Cius: A Wind Direction 0.6-3.5 N 0.52 NNE 0.56 NE 0.49 ENE 0.80 E 0.73 ESE 0.34 SE 0.27 SSE 0.19 s 032 ~ 0~ SW 0.20 WSW 03.4 w 0.54 WNW 0.46 NW 039 NNW 0.61 Total 6.98 Calm Boan not Included above for. Variable Direction Boan for. Iavalid Honn for: Namber of Valid );1011~ for this Table: Total Honn for the Period: Page 9 of 16 Joint Freq11ency Dfsttjbution Percent Hours at Each Wmd Speed and Direction Total Pffl941 01/01/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/25/2021 14:38 AD Honn Dfrectioa: D135P Lapse: DT150-35 DeltaT~ Extremely Unstable Wind Speed (mph) 3.6-7.5 7.6-1.2.5 12.6-18.5 18.6-24.5 >24.6 Total 1.21 0.00 0.00 0.00 0.00 1.73 0.62 0.00 0.00 0.00 0.00 1.18 0.16 0.00 0.()0 0.00 0.00 0.66 0.29 0.00 0.00 0.00 0.00 1.09 0.34 0.00 0.00 0.00 0.00 1.08 0.14 0.00 0.00 0.00 0.00 0.48 0.06 0.00 0.00 0.00 0.00 033 0.13 0.00 0.00 0.00 0.00 032 033 O.QO 0.00 0.00 0.00 0.65 0.,85 0.0:6 0.00 o.o.o 0.00 1.14 0.81 034 0.00 0.00 0.00 135 1.33 0.61 0.03 0.00 0.00* 230 234 0.49 0.01 0.00 0.00 3.39 1.29 0.28 0.00 0.00 0.00 2.02 0.99 0.08 0.1):0 0.00 0.00 1.45 0.92 0.03 0.00 0.00 0.00 1.56 11.82 1.88 0.04 0.00 0.00 20.72 Total Period ADHonn 594 Total Period AQHoan 0 Total Peried ADHonn 284 Total Period AD Hoon 1638 8783

Site: BV Period e>fRecord.. Elevation: Speed: Stabfflty Clan: B Wind Directioa N NNE NE ENE E ESE SE SSE s SSW SW WSW w WNW NW NNW Total 8.6-3.5 0.13 0.05 0.11 0.10 0.04 0.04 O.IA 0.05 0.05 0.05 0.08 0.09 0.05 0.09 0.16 0.09 1.21 SP35P Calm Boun not lllcbuled abon for: Variable Direction Bonn for: Invalid Boon for: Number of Valid Boen for tlais Table: Total Boon for tbe Period: Page 10 of 16 Joint Frequency Diltribntlon Percent Homs at Each Wind Speed end Direction Total Period 01/01/2020 01:00 - 12/31/2020 23:00 R.cportPrintcd On: 03/25/202114:38 All Honn Direction: D135P DT150-35 Delta Tempc:ratmc Moderately Unstable Wind Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 >24.6 Total 0.04 0.00 0.00 0.00 0.00 0.16 0.08 0.00 0.00 0.00 0.00 0.13 0.04 0.00 0.00 o:oo 0.00 0.15 0.01 0.00 0.00 0.00 0.00 0.11 0.04 0.00 0.00 0.00 0.00 0.08 0.00 0.00 0.00 o:oo 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.05 0.04 0.00 0.00 0.00 0.00 0.09 0.03 0.01 0.00 0.00 0.00 0.09 0.20 0.14 0.01 0.00 0.00 0.43 0.27 0.14 0.01 0.00 0.00 0.51 0.13 0.14 0.00 0.00 0.00 0.32 0.14 0.06 0.00 0.00 0.00 0.29 0.08 0.03 0.00 0.00 0.00 0.27 0.08 0.01 0.00 0.00 0.00 0.18 1.15 0.53 O.o3 0.00 0.00 2.92 Total Period AIIBoun 594 Total Period All Boan 0 Total Period AIIBoun 284 Total Period All Boan 231 8783 I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period ofllecord

Elevation:

Speed: Stability Claa: C Wbad Direction N NNE NE ENE E ESE SE SSE s SSW SW WSW w WNW NW NNW Total 0.6-3.5 0.15 0.09 0.16 0.11 0.05 0.03 0.06 0.01 0.01 0.04 0.0*8 0.06 0.18 0.10 0.11 0.09 134 SP35P Calm Honn not Included above for: Variable Direction Honn for: Invalid Hoon for: Number of Valid Boan for thll Table: Total Hoon for the Period: Page 11 of 16 Joint Frequency Dtltrib,ntion Percent Hours at Each Wind ~ and Direction Total Period 01/01/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/25/202114:38 All Hoon Directioa: DDSP Lapte: DT150-35 Delta Tempe,:atwc Sllghtly Unstable 'Yfnd Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 > 24.6 Total 0.06 0.00 0.00 0.00 0.00 0.22 0.05 0.00 0.00 0.00 0.00 0.14 O.pl 0.QO 0.00 0.00 0.00 0.18 0.01 0.00 0.00 0.00 0.00 0.13 0.04 O.QO 0.00 0.00 0.00 0.09 0.00 0.QO 0.QO o.~ 0.00 0.03 0.00 0.00 0.00 Q.00 0.00 0.06 0.00 0.00 0.00 0.00 0.00 0.01 0.06 0.00 o:oo 0.00 0.00 0.08 0.03 0.()0 0.(19 0.00 0.00 0.06 0.19 0.04 0.00 0.00 0.00. 030 0.24 0.09 0.01 0.QO 0.00 0.40 0.15 0.13 0.00 0.00 0.00 0.46 0.19 0.05 0.00 0.00 0.00 034 0.14 0.01 0.00 0.00 0.00 0.27 0.14 0.00 0.00 0.00 0.00 0.23 1.32 032 0.01 0.00 0.00 2.99 Total Period All Honn 594 Total Period All Hoon 0 Total Period All Hoon 284 Total Period All Boan 236 8783

Site: BV Period efRecord

ElevatiOll:

Speed: SP35P Stabotty au.: D Wiad Dinctioa U-3.5 N 1.48 NNE 1.42 NE 1.62 ENE 1.48 E 0.99 ESE 0.40 SE 0.37 SSE 0.32 s 0.32 SSW 0.53 SW 0.56 WSW 0.80 w 0.99 WNW 0.91 NW 1.04 NNW 1.19 Total 14.40 Calm Hours IIOt lndaded above for: Variable Direction Boan for: hvaHd Houn for: Number of Valid Houn for dab Table: Total Ho11n for the Period: Page 12 of 16 Joint Frequency Diltrlbution Percent Hours at Each Wmd Speed and Direction Total Period 01/01/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/'lS/2021 14:38 AIIHoun Directioa: D135P Lapse: DTlS0-35 Delta Tempei:aturc Neutral Wind Speed (mph) 3.6-7.5 7.6-11.S 12.6-18.5 18.6-24.5 >~ Total 0.46 0.00 0.00 0.00 0.00 1.94 0.25 0.00 0.00 0.00 0.00 1.67 o'.06 0.00 0.00 0.00 0.00 1.68 0.13 0.00 0.00 0.00 0.00 1.61 0.18 0.00 0.00 o.,oo 0.00 1.16 0.04 0.00 0.00 0.00 0.00 0.44 0.03 0.00 0.00 0.00 0.00 0.39 0.03 0.00 o:oo 0.00 0.00 034 0.23 0.00 0.00 0.00 0.00 0.54 0.44 0.05 0.00 0.00 0.00 1.02 137 0.58 0.01 0.00 0.00 2.52 2.07 0.76 0.04 0.00 0.00 3.67 1.97 1.04 0.04 0.00 0.00 4.04 1.72 0.29 0.00 0.00 0.00 2.92 0.96 0.04 0.00 0.00 0.00 2.04 0.90 0.00 0.00 0.00 0.00 2.09 10.83 2.76 0.09 0.00 0.00 28.07 Total Period AIIHoan 594 Total Period AD Hoen 0 Total Period ADHoun 284 Total Period AD Hoon 2219 8783 I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period ofRecord-Elevatfoa: Speed: SP35P StabDity Clim: E Wind DirectiH 8.6-3.5 N 138 NNE 139 NE 1.62 ENE 230 E 2.34 ESE 1.87 SE 1.13 SSE 1.06 s 1.45 s.sw 1.20 SW 0.76 WSW 0.59 w 0.62 WNW 0.54 NW 0.87 NNW 1.13 Total 20.27 Calm Honn not Included above for: Variable Direction Honn for: Iavafid Honn for: NU1ber of Valid H~ for tbls Table: Total Ronn for the Period: Page 13 of 16 Jofn! Frequency Dia1;ribution Percent Hours at Ea;ch Wmd Speed and Direction Total Period 01/01/2020 01:00 - 12'31/2020 23:00 Report Printed On: 03/25/202114:38 AllHOUl'II Direcf:igg: DI35P Lapte: DT150-35 Delta Temperature SUghtly Stable; Wind.Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 > 24.6 Total o.i'o 0.00 0.00 0.00 0.00 1.48 0.03 0.00 0.00 0.00 0.00 1.42 0.91 0.00 0.00 0.00 0.00 1.63 0.08 0.00 o:oo 0.00 0.00 238 0.08 0.00 0.00 0.00 0.00 2.42 0.01 0.00 0.00 0.00 0.00 1.88 0.00 0.00 0.00 0.00 0.00 1.13 0.04 0.00 0.00 0.00 0.00 1.10 0.28 0.00 0,00 0.00 0.00 1.73 0.56 OM 0.00 0.00 0.00 1.80 0.90 0.23 0.00 0.00 0.00 1.88 1.10 037 0:04 0.00 0.00 2.10 0.82 0.27 0.00 0.00 0.00 1.71 0.40 0.03 0.00 0.00 0.00 0.97 0.19 0.00 0.00 0.00 0.00 1.06 0.27 0.01 0.00 0.00 0.00 1.40 4.86 0.94 0.04 0.00 0.00 26.10 Total Period AD Honn 594 Total Period AD Honn 0 Total Period AD Hunn 284 Total Period AilHoun 2063 8783

Site: BV Period ofRecenl = Elevatioa: Speed: SP35P Stabllity Claa: F Wind DtrectiH 0.6-3.5 N 0.20 NNE 0.27 NE 0.40 ENE 0.71 E 138 ESE 2.78 SE 2.28 ~ 137 s 1.01 SSW 0.46 SW 0.11 WSW 0.13 w 0.06 WNW 0.03 NW 0.11 NNW 0.08 Total 11.37 Calm Honn not lnthuled above for: Variable Directio Hows for: Invalid Hoan for: Nantber of Valid Honn for thll Table: Total Honn for the Period: Page 14 of 16 Joint Frequency Distribution Percent Hours at Each Wind Speed and Direction Total Period 01/01/2020 01:00 -12/31/2020 23:00 Report Prlnn,d 0n: 03m1202114:3s AIIHoun Directio: D135P Lapte: DT150-35 Delta Tcmpe1atwe Moderately Stable Wind Speed (mph) 3.6-7.5 7.6-11.5 12.6-18.5 18.6-24.5 >24.6 Total 0.00 0.00 0.00 0.00 0.00 0.20 0.00 0.00 0.00 0.00 0.00 0.27 0.00 0.00 0.00 0.00 0.00 0.40 0.00 0.00 o*.oo 0.00 0.00 0.71 0.01 0.00 0.00 0.00 0.00 139 0.00 0.00 0.00 0.00 0.00_ 2.78 0.00 0.00 0.00 0.00 0.00 2.28 O.ol 0.00 0.00 0.00 0.00 1.38 0.09 0.00 0.00 0.00 0.00 1.10 0.05 0.01 0.00 0.00 0.00 052 0.11 0.03 0.00 0.00 0.00 0.25 0.00 0.04 0.00 0.00 0.00 0.16 0.03 0.04 0.00 0.00 0.00 0.13 0.03 0.01 0.00 0.00 0.00 0.06 0.04 0.00 0.00 0.00 0.00 0.15 0.00 0.00 0.00 0.00 0.00 0.08 0.37 0.13 0.00 0.00 0.00 11.87 Total Period ADHoan 594 Totl Period ADHoun 0 ToWPeriod ADHoun 284 Total Period ADHoun 938 8783 I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period ofRecord

Elevation:

Speed: SP35P Stabfflty Clau: G Wiad Direction 0.6-3.5 N 0.10 NNE 0.15 NE 027 ENE 053 E 0.95 ESE 157 SE 2.00 SSE 0.71 s 039 SSW 0.23 SW 0.08 WSW 0.06 w 0.05 WNW 0.06 NW 0.00 NNW 0.05 Total 7.20 Calm Houn not hcluded above for: Varbble Direction Hean for: Invalid Hoan for: N11.mber of Valid Houn for thb Table: Total Houn for the Period: Page 15 of 16 Joint Frequency Dhtrfbution Percent Hours at Each Wind Speed and Direction Total Period 01/01/2020 01:00 -121:31~ 23:00 Report Printed On: 03/25/202114:38 AD Hoon Dfrecdon: D135P Lapse: DT150-35 Delta Tempcratwc Extremely Stable Wind Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 >24.6 Total o.po 0,00 0.00 0.00 0.00 0.10 0.00 0.00 0.00 0.00 0.00 0.15 0.00 0.00 0.00 0.00 0.00 027 0.01 0.00 0.00 0.00

0.

0.54 0.00 o:oo 0.00 0.00 0.00 0.95 0.QO 0.00 0.00 0.00 0.00 1.57 0.00 0.00 0.00 0.00 0.00 2.00 O.QO 0.00 0.00 0.00 0.00 0.71 0.03 0.00 0.00 0.00 0.00 0.42 0.01 0.00 0.00 0.00 0.00 0.24 0.01 0.00 0.00 0.00 0.00 0.09 0.01 0.01 0.03 0.00 0.00 0.11 0.01 0.01 0.QO 0.00 0.00 0.08 0.0,0 0.00 0.00 0.00 0.00 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.09 0.03 0.03 0.00 0.00 7.34 Total Period AIIHown 594 '.fotal Period 4DHoun 0 Total Period AIIHoun 284 Total Period AJIHoun 580 8783

Site: BV Period of Record* Elevation: Speed: SP35P Stability Clua: ALL WhldDirectioa 0.6-3.5 N 3.96 NNE 3.92 NE 4.68 ENE 6.03 E 6.48 ESE 7.03 SE 6.14 SSE 3.71 s 3.55 SSW 2.73 SW 1.86 WSW 2.07 w 2.49 WNW 2.19 NW 2.69 NNW 3.23 Total 62.77 Calm Honn ot !eluded above for: Variable Dinction Boan for: Invalid Boan for: NlllDber of Valid Boan for tlrll Table: Total Houn for the Period: Page 16 of 16 Report Printed On: 03/25!202114:38 Joint Frequency Dutribution Percent Hours at Each Wmd Speed and Direction Total Period AD Boan 01/01/2020 01:00-12/31/2020 23:00 Directiell: D135P Lapse: DT150-35 Delta Temperature Wind Speed (mph) 3.6-7.5 7.6-11.5 126-18.5 18.6-24,c5 >24.6 Totlll 1.87 0.00 0.00 0.00 0.00 5.83 1.02 0.00 0.00 0.00 0.00 4.95 0.29 0.00 0.00 0.00 0.00 4.97 0.53 0.00 0.P9 0.00 0.00 6.57 0.68 0.00 0.QO 0.00 0.00 7.16 0,19 0.00 0.00 0.00 0.00 722 0.09 0.00 0.00 0.00 0.00 6.22 0.20 0.00 0.00 0.00 0.00 3.91 1.05 0.00 0.00 0.00 0.00 4.60 1.96 0.18 0.9() 0.00 0.00 4.87 3.59 135 0.03 0.00 0.00 6.83 5.02 2.01 0.15 0.00 0.00 9.26 t 5.45 2.11 0.05 0.00 0.00 10.11 3.Tl 0.72 0.00 0.00 0.00 6.68 239 0.15 0.00 0.00 0.00 5.24 230 0.05 0.00 0.00 0.00 5.58 30.42 6.58 0.23 0.00 0.00 100.00 Total Period ADHoun 594 Total Period AIIHoun 0 Total Period AIIHoun 284 Totlll Period AIIHon 7905 8783 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period ofReconl.,, Elcvatioa: Speed: SP150P StabllltyClau: A Wmd Direction 0.6-3.5 N 13 NNE 6 NE 8 ENE 13 E 1 ESE 1 SE 3 SSE 1 s 1 SSW 1 SW 2 WSW 4 w 7 WNW 5 NW 9 NNW 11 Total 86 Calm Boan llot Included above for: Variable Directioa'Honn for: Invalid Honn for: Number ofValid Honn for tltb Table: Total Honn for the Period: Page 1 of 16 Joint Frequency Diltrlbotion Hours at Each Wind Speed and Direction Total Period 01/01!2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/25/202114:44 AIIHoun .Dtrectien: DI150P Lapse: DT150-35 Delta Tcmpcraturc Extremely Unstable Wind Speed (mph) 3.6-7.5 7.6-~ l.lb-18.5 18.6-14.5 >24.6 Total 47 25 1 0 0 86 86 31 0 0 0 123 52 26 0 0 0 86 46 27 0 0 0 86 47 24 3 0 0 75 38 24 4 0 0 67 35 26 4 0 0 68 28 19 2 0 0 50 20 32 2 0 0 55 16 41 4 0 0 62 18 43 12 0 0 75 21 57 22 1 0 105 68 120 47 7 1 250 75 101 34 10 1 226 48 45 15 1 0 118 43 49 1 0 0 104 688 690 151 19 2 1636 Total Period AD Honn 138 Total Period AIIHoan 0 Total Period AIIHoan 284 Total Period AD Honn 1636 8783

Site: BV Period of:Reeord = Elevation: Speed: SPlSOP Stability Clan: B Wind Diredioa 6.6-3.5 N 5 NNE 2 NE 3 ENE 5 E 0 ESE 3 SE 0 ~ 1 s 0 SSW 0 SW 0 WSW 0 w 5 WNW 1 NW 1 NNW 6 Total 32 Cahn Boan aot lncladed above for: Variable Direction Hoon for: hvalid Boan for: Nw.mber of Valid Boan for tlw Table: Total Hon for tile Period: Page 2 of 16 Report Printed On: 03/25/20211-4:44 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period AIIHoun 01/01/2020 01:00 - 12/31/2020 23:00 Directioa: D1150P LapK: DT150-35 Delta Tcmpcratmc Moderately Unstable Wind Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 >24.6 Total 5 1 1 0 0 12 6 2 1 0 0 11 7 2 0 0 0 12 2 2 0 0 0 9 3 0 1 0 0 4 8 0 0 0 0 11 3 0 0 0 0 3 5 2 0 0 0 8 3 2 0 0 0 5 3 4 2 0 0 9 7 12 2 2 0 23 2 11 4 2 0 19 9 11 16 5 0 46 7 4 15 1 0 28 10 3 2 0 0 16 2 5 1 0 0 14 82 61 45 10 0 230 Total Period AilHoan 138 Total Period AilHoun 0 Total Period AilHoan 284 Total Period AIIHoun 230 8783 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period of Record - Elevation: Speed: SP150P Stability Clan: C Wind Directien 0.6-3.5 N s NNE 3 NE 3 ENR 1 E 5 ESE 1 SE 0 SSE 2 s 1 SSW 0 SW 0 WSW 3 w 5 WNW 6 NW 5 NNW 1 Total 41 Cahn Houn aot lacladed above for: Variable Dinctlon Iioun for: Invalid Houn for: Number of Valid Boan for tbil Table: Total Houn for the Pe_rlod: Page 3 of 16 Joint Frequency ~ution ~ours at Each ~ind Speed and Direction Total Period 01/0lt202Q 01:00 -12/31/2020 23:00 ReportPrinted On: 03/25/l02114:44 AilHoun Direetiou: DI150P

upse:

DT150-35 Delta Tempe.atwe ~htlyU~le Wind Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 >24.6 Total 8 2 0 0 6 15 7 s 0 0 0 15 10 0 0 0 0 13 2 1 0 0 0 4 4 3 0 0 0 12 s 2 0 0 0 8 1 1 0 0 0 2 3 0 0 0 0 s 2 5 0 0 0 8 2 2 0 0 0 4 3 2 1 0 0 6 4 7 6 0 0 20 8 21 13 1 0 48 7 13 10 2 0 38 10 7 2 0 0 24 7 7 0 0 0 15 83 78 32 3 0 237 Total Period AD Hollr!I 138 Total Period AilHoun 0 Total Period ADHoun 284 Total Period AIIHon 237 8783

Site: BV Period of Record* Elevatioa: Speed: SP150P StablHtyClan: D Willd Direction D.6-3.5 N 23 NNE 41 NE 64 ENE 45 E 20 ESE 17 SE 11 SSE 7 s 7 SSW 12 SW 10 WSW 13 w 22 WNW 21 NW 17 NNW 19 Total 349 Calm Honn not Included above for: Variable Direction Hun for: Invalid Boan for: Number of Valid Houn for tliil Table: Total Hoen for tile Peried: Page 4 of 16 Joint Frequency Distribution Hours at Each Wfod Speed arid Direction Total Period - 01/01/2020 01:00 -' 11131/2020 23:00 Report Printed On: 03/25/2021 U:44 AD Hours Dfrecdoa: O1150P Lap&e: DT150-35 Delta Tempe.tatwe Neutral Wind Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.S 18.6-24.5 >24., Total 60 8 1 0 0 92 74 21 2 0 0 138 90 17 0 0 0 171 72 24 1 0 0 142 42 11 0 0 0 73 18 7 3 0 0 45 13 7 2 0 0 33 27 8 1 0 0 43 27 18 0 0 0 52 20 38 5 0 0 75 44 97 13 0 0 164 56 79 21 4 0 173 61 176 104 15 2 380 92 104 61 4 0 282 68 61 24 4 1 175 74 48 2 0 0 143 838 724 240 27 3 2181 Tetal Period AllHoun 138 Total Period ABHoun 0 Total Period All Hours 284 Tetal Period AIIHoun 2181 8783 I I I I I I I,, I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period of Record= Elevadoa: Speed: SP150P Stability Claa: E Willd Directioe 8.6-3.5 N ~ NNE 69 NE 136 ENE 93 E 76 ESE 59 SE 33 SSE 19 s ~8 SSW 31 SW 37 WSW 25 w 33 WNW 24 NW 25 NNW 24 Total 745 Calm Boan ot lncladed above for: Variable Dlrectioi:t H011n for: Invalid Ho11n for: Number of Valid Hoon for this Table: Total Hoon for the Period: Page 5 of 16 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period 01/0112020 01:09 - 12i.nho20 23:00_ Report Printed On: 03/25/2021 14:44 AIIHoun D1150P Lapse: DT150-35 Delta Temperature ~lig!Jtly Stable Wind Speed (mph) 3.6-7.5 7.6-ll.5 12.1~ 18.6-24.S >24.6 Total 30 5 0 0 0 83 54 6 0 0 0 129 119 9 1 0 0 265 102 16 0 0 0 211 77 18 0 0 0 171 36 7 0 0 0 102 19 6 0 0 0 58 27 4 2 0 0 52 36 26 3 0 0 83 35 35 3 0 0 104 48 41 8 0 0 129 67 63 7 0 1 163 57 81 31 2 0 204 79 36 16 5 2 162 53 22 2 0 0 102 68 9 2 0 0 103 907 384 75 7 3 2121 Total Period AD Hoon 138 T~tal Period AD Hoon 0 Total Period AD Hoon 284 Total Period All Hoon 2121 8783

Site: BY Period of Record= Elevation: Speed: SP150P StaMHty Clul: F Wiad Directien 9.6-3.5 N 18 NNE 90 NE 217 ENE 115 E 70 ESE 33 SR 22 SSE 19 s 28 SSW 34 SW 41 WSW 35 w 17 WNW 8 NW 11 NNW 12 Total 770 Calm Houn aot Included above for: Variable Direction Boan for: hvaHd Honn for: Nlllllber of Valid Honn for thh Table: Total Honn for the Period: Page 6 of 16 Report Printed On: 03/25/2021 14:44 Joint Frequency Diltr:lbutlon Hours at Each Wmd Speed and Direction Total Period. AD Hoon 01/01/2020 01:00 - 12/31/2020 23:00 Direction: D1150P Lapse: DT150-35 Delta Temperature Moderately stable Wind Speed (mph) 3.6-7.5 7.6-12.! 12.6-18.5 18.6-24.5 >24.6 Total 10 0 0 0 0 28 20 0 0 0 0 110 89 1 0 0 0 307 44 5 0 0 0 164 55 1 0 0 0 126 6 0 0 0 0 39 2 0 0 0 Q 24 9 1 0 0 0 29 19 6 0 0 0 53 26 3 1 0 0 64 31 12 2 0 0 86 21 4 1 0 0 61 10 6 4 0 0 37 10 2 1 0 0 21 11 1 0 0 0 23 8 1 0 1 0 22 371 43 9 1 0 1194 Total Period ADHoun 138 Total Period ADHoun 0 Total Period ADHoun 284 Total Period ADHoun 1194 8783 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period ofReeonl

Elevatioa:

Speed: SP150P Stability Class: G Wind Direction 0.6-3.5 N 18 NNE 45 NE 1~ ENE 65 E 82 ESE 32 SE 14 SSE 12 s 18 SSW 27 SW 23 WSW 22 w 17 WNW 10 NW 7 NNW 10 Total 511 Calm Houn not Included above for: Variable Direction Ho11n for: hvalid Honn for: Nmnber of V aiid Ho11n for thil Table: Total Hoen for the Period: Page 7 of 16 Joint Frequency DutribuUon Hours at Each Wind Speed and Direction Total Period OVOl/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/lS/2021 14:44 All Hours Dtrectloa: DI150P Lapse: DT150-35 Delta Tempetatme Extremely Stab~ Wfad~(mph) 3.6-7.5 7..,12.5 ll.6-18.5 18.6-24.5 >24.6 Total 1 0 0 0 0 19 13 0 0 0 0 58 33 0 0 0 0 142 18 0 0 0 0 83 40 0 0 0 0 122 3 0 0 0 0 35 5 0 0 0 0 19 14 0 0 0 0 26 10 2 0 0 0 30 23 3 0 0 0 53 36 4 0 0 0 63 15 2 1 1 0 41 7 3 0 0 0 27 8 0 0 1 0 19 5 0 0 1 0 13 2 0 0 0 0 12 233 14 1 3 0 762 Total Period ADHoan 138 Total Period AIIHoun 0 Total Period ADHoan 284 T~tal Period AD Honn 762 8783

Site: BV Period of Record"' Elevation: Speed: SP150P Stability Claa: ALL Wind Diredio 0.6-3.5 N 130 NNE 256 NE 540 ENE 337 E 254 ESE 146 SE 83 SSE 61 s 73 SSW 105 SW 108 WSW 102 w 106 WNW 75 NW 75 NNW 83 Total 2534 Calm Hoon not Inchlded above for: Variable Direction Boan for: Invalid Hoen for: Number of Valid Boan for tJus Table: Total Hoon for the Period: Page 8 of 16 Report Printed On: 03/25/202114:44 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period AIIHoun 01/01/2020 01:00 - 12/31/2020 23:00 Diredioa: D1150P Lapse: DT150-35 Delta Temperature Wind Speed (mph) 3.6-7.5 7.6-ll.5 12.6-18.5 18.6-24.5 >24.6 Total 161 41 3 0 0 335 260 65 3 0 0 584 400 55 1 0 0 996 286 75 1 0 0 699 268 57 4 0 0 583 114 40 7 0 0 307 78 40 6 0 0 207 113 34 5 0 0 213 117 91 5 0 0 286 125 126 15 0 0 371 187 211 38 2 0 546 186 223 62 8 1 582 220 418 215 30 3 992 278 260 137 23 3 776 205 139 45 6 1 471 204 119 6 1 0 413 3202 1994 553 70 8 8361 Total Period AIIHoan 138 Total Period AIIHoan 0 Total Period AIIHo*n 284 Total Period AIIHoan 8361 8783 I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period of Record., Elevatloa: Speed: SP150P Stabfflty Cius: A Wind Direetioa 0.6-3.5 N 0.16 NNE 0.07 NE 0.10 ENE 0.16 E 0.01 ESE 0.01 SE 0.04 SSE 0.01 s 0.01 SSW 0.01 SW 0.02 WSW 0.05 w 0.08 WNW 0.06 NW 0.11 NNW 0.13 Total 1.03 Calm Hoon aot ln~ed above for: Variable Direction Hoen for: Invalid Hours for: Number of Valid Boan for this Table: Total Hoon for the Period: Page 9 of 16 Joint Frequency Diltrfbution Percent Hours B:tEach Wmd Speed and Direction Total Period 01/01/2020 01:00 - 1.2/31/2020 23:00 Report Printed On: 03/25/202114:44 All Hoon Direction: DI150P DT150-35 Delta Temperature Extremely Unstable Wind Speed (mph) 3.6-7.5 7.6-12.S ll."-18.5 18.6-24.5 >24.6 Total 0:~6 030 O.OJ 0.00 0.0:() 1.03 1.03 0.37 0.0!) 0.00 0.00 1.47 0.62 031 O.C)() 0.00 0.00 1.03 0.55* 032 0.90. o.oo 0.00 1.03 0.5~ 0.29 0.04 0:00 0.00 0.90 0.45 0.29 o._os 0,00 0.00 0.80 0.42 OJI 0.05 0;00 0.00. 0.81 033 0.23 0.02 0.00 0.00 0.60 0.24 038 0.02 0.00 0.00* 0.66 0.19 0.49 0.05 0.00 0.00 0.74 0.22 0.51 0.14 0.00 0.00 0.90 0.25 0.68 0.26 0.01 0.00 1.26 0.81 1.44 0.56 0.08. 0.01 2.99 0.90 1.21 0.41 0.12 0.01 2.70 0.57 054 0.18 0.01 0.00 1.41 0.51 0.59 0.01 0.00 0.00 1.24 8.23 8.25 1.81 0.23 0.02 19.57 Total Period AU Hours 138 Total Period AllHoan 0 Total Period AIIHoun 284 T~4}Perlod AD Boan 1636 8783

Site: BV Period of Record.. Elevation: Speed: SP150P Stabfflty Clau: B Wind Direc:tiun 0.6-3.5 N 0.06 NNE 0.02 NE 0.04 ENE 0.06 E 0.00 ESE 0.04 SE 0.00 SSE 0.01 s 0.00 SSW 0.00 SW 0.00 WSW 0.00 w 0.06 WNW 0.ot NW 0.ot NNW 0.07 Total 038 Calm Houn not Included above for: Variable Direction Honn for: Invalid Boan for: Number of Valid Honn for tllil Table: Total Ho11n for tbe Period: Page 10 of 16 Joint Frequency Dlatrlbutlon Percent Homs at Each Wind Speed end Direction Total Period 01/01/2020 01:00 - 12/3112020 23:00 Report Printed On: 03/25/2021 14:44 AllHou.n Directioa: DI150P Lapse: DTIS0-35 Delta Tempe,:ature Moderately Unstable Wind Speed (mph) 3.6-7.5 7.6-12.5 ll.6-18.5 18.6-24.5 >24.6 Total o:06 0:01 0.01 0.00 0.00 0.14 0.o7 0.02 0.01 0.00 0.00 0.13 0.08 0.02 0.00 0.00 0.00 0.14 0.02 0.02 0.00 0.00 0.00 0.11 0.04 0.00 0.ot 0.00 0.00 0.05 0*.10 0.00 0.00 0.00 0.00 0.13 0.04 0.00 0.00 0.00 0.00 0.04 0.06 0.02 0.00 0.00 0.00 0.10 0'.04 0.02 0.00 0.00 0.00 0.06 0.04 0.05 0.02 0.00 0.00 0.11 0.0*8 0.14 0.02 0.02 0.00 0.28 0.02 0.13 0.05 0.02 0.00 0.23 0.11 0.13 0.19 0.06 0.00 055 0.08 0.05 0.18 0.01 0.00 033 0.12 0.04 0.02 0.00 0.00 0.19 0.02 0.06 0.01 0.00 0.00 0.17 0.98 0.73 054 0.12 0.00 2.75 TetalPeriod ADH011n 138 Tetal Period AilHoun 0 Total Period AilHoun 284 Total Period AilHoun 230 8783

I I I I I I I I I I I I I I I I I I I Site: BV Period efRecord c Elevation: Speed: SP150P Stability Claa: C Whld Direedoa 0.6-3.5 N 0.06 NNE 0.04 NE 0.04 ENE 0.01. E 0.06 ESE 0.QJ SE 0.00 SSE 0.02 s 0.01 SSW 0.OQ SW 0.00 WSW 0.04 w 0.06 WNW 0.07 NW 0.06 NNW 0.01 Total 0.49 Calm Houn aot Iacladed above for: Variable DiredioJ! Houn for: Invalid Houn for: Namber ofValid Honn for tllJs Table: Total Houn for the Period: Page 11 of 16 Joint Frequency Distribution Percent Hours at Each Wind S~ and Direction TotalP~.. 01/01/2020 01:00 -1~1/2020. 23:00 Report Printed On: 03/25/2021 14:44 AB Honn DlrectioJ!: D1150P Lapse: DT150-35 Dcha Tempc:tatwe SUghtly Unstable Wind.Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.S 18.6-24.5 >24.6 Total 0.10 0.02 0.00 0.00 0.00 0.18 0.08 0.06 Q.00 0.OQ 0.00 0.18 0.12 Q.00 0.QO 0.00 0.00 0.16 0.92 0.01 0:~, 0.00 0.00 0.05 0.05 0.04 0.QO 0.00 0.00 0.14 0.06 0.02 0.QO 0.00 0.OQ 0.10 0.ot 0.01 0.00 0.0Q 0.00 0.02 0.04 0.00 0.00 0.00 0.00 0.06 0.02 0.06 0.00 0.00 0.OQ 0.10 o.. Q2 Q.02 0.9() 0.00 0.00 0.05 0.04 0.02 0.01 0.00 0.00 0.07 0.05 0.08 0.07 0.00 0.00 0.24 0.10 0.25 0.16 0.01 0.00 0.57 0.08 0.16 0.12 0.02 0.00 0.45 0.12 0.08 0.02 0.00 0.00 0.29 0.08 0.08 0.00 0.00 0.00 0.18 0.99 0.93 038 0.04 0.00 2.83 Total Period AIIHoun 138 'f otal Period AIIHoun 0 Total Period ADHoan 284 Total Period AIIHoun 237 8783

Site: BV Period of Record=- Elevatloa: Speed: SP150P Stabfflty Clan: D Wind Direction 0.6-3.5 N 0.28 NNE 0.49 NE o.n ENE 0.54 E 0.24 ESE 0.20 SE 0.13 SSE 0.08 s 0.08 ~ 0.14 SW 0.12 WSW 0.16 w 0.26 WNW 0.25 NW 0.20 NNW 023 Total 4.17 Calm Boan not Included above for: V arlable Directioa Boan for: Invalid Honn for: N11mber ofVaHd Hotm for tbll Table: Total Boan for the Period: Page 12 of 16 Report Printed On: 03/25/2021 1-4:44 Joint Frequency Dtstrfbution Percent Hours at Eaclt Wind Speed and Direction Total Period ABHoun 01/01/2020 01:00 - 12/31/2020 23:00 Directioa: O1150P Lapse: DT150-35 Delta Tempe,:atwe Neutral Wind Speed (mph) 3.6-7.5 7.6-12.5 11.6-18.5 18.6-24.5 > 24.6 Total 0:72 0.10 0.01 0.00 0.00 1.10 0.89 0.25 0.02 0.00 0.00 1.65 1.08 0.20 0.00 0.00 0.00 2.05 0.86 0.29 0.01 0.00 0.00 1.70 050 0:13 0.00 0.00 0.00 0.87 0.22 0.0*3 0.04 0.00 0.00 0.54 0.16 0.08 0.02 0.00 0.00 039 032 o.ro 0.01 0.00 0.00 0.51 032 0.22 0.00 O.QO 0.00 0.62 0.24 0.45 0.06 0.00 0.00 0.90 0.53 1.16 0.16 0.00 0.00 1.96 0.67 0.94 0.25 0.05 0.00 2.07 0.73 2.11 1.24 0.18 0.02 4.54 1.10 1:24 0.73 0.05 0.00 3.37 0.81 0.73 029 0.05 O.ot 2.09 0.89 057 0.02 0.00 0.00 1.71 10.02 8.66 2.87 032 0.04 26.09 Total Period AIIHoun 138 Total Period All Honn 0 Total Period All Honn 284 Total Period AIIHoun 2181 8783 I I I I I I I I I I I I I I I I I I I

I I I I I I I I .I I I I I I I I I I I Site: BV Period of Record - Elevation: Speed: SP150P Stability Clau: E Wind Dinction 0.6-3.5 N 0.57 NNE 0.83 NE 1.63 ENE 1.11 E 0.91 ESE 0.71 SE 039 SSE 0.23 s 0.22 SSW 037 SW 0.38 WSW 030 w 039 WNW 0.29 NW 030 NNW 0.29 Total 8.91 Calm Hoen llOt hdaded above for: Variable Direction Honn for: hvalid Hoon for: NDDlber of V aHd Ho,un for dw Table: Total Hoon for the Period: Page 13 of 16 Joint Frequency Dlstrfbution Percent Hours at Each Wind Speed and Direction Total Period 01/01/2020 01:00 -12/31/2020 23:00 Report Printed On: 03/25/202114:44 All Hoon Direction: D1150P Lapse: DT150-35 Delta Tempetatwe Slightly Stable Wind Speed (mph) 3.7.5 7.6-12.5 12.6-18.5 18.6-2'1~ >14.6 Total 036 0.06 0.00 0.00 0.QO 0.99 0.65 0.07 0.00 0.00 0.QO 1.54 1:42 0.11 0.01 0.!):O 0.QO 3.17 1.22 0.19 0.00 0.00 0.00 2.52 0.92 0.22 0.OQ 0.QO 0.00 2.05 0.43 0.08 Q.00 0:0-0 0.00 1.22 0.23 0.07 Q.9(1 0.00 0.00 0.69 032 0.05 0.02 0.00 0.00 0.62 0.43 031 0.04 0.00 0.00 0.99 0.42 0.42 0.04 0.00 0.00 1.24 0.57 0.49 0.10 0.00 O.(!O 1.54 0.80 0.75 0.08 0.0Q. 0.01 1.95 0.68 0.97 0.37 0.02 0.00 2.44 0.94 0.43 0.19 0.06 0.02 1.94 0.63 0.26 0.02 0.00 0.00 1.22 0.81 0.11 0.02 0.00 0.00 1.23 10.85 4.59 0.90 0.08 0.04 2537 Total Period ADHoun 138 Total Period AJ!Houn 0 Total Period AHH011n 284 Total Period AD Hoon 2121 8783

Site: BV Period of Record* Elevatio: Speed: SP150P StblHty au.: F Wiad Directioa 0.6-3.5 N 0.22 NNE 1.08 NE 2.60 ENE 138 E 0.84 ESE 039 SE 0.26 SSE 0.23 s 033 SSW 0.41 SW 0.49 WSW 0.42 w 0.20 WNW 0.10 NW 0.13 NNW 0.14 Total 9.21 Calm Honn not htcluded above for: Variable DiRctio Bown for: Invalid Boan for: Nlllllber of Valid Honn for this Table: Total Boan for the Period: Page 14 of 16 Report Printed On: 03/25/202114:44 Joint Frequency Diltribution Percent Hours at Each Wind Speed and Direction Total Period All Hoon 01/01/2020 01:00 - 12/31/2020 23:00 Direction: DI150P Lapse: DT150-35 Delta Temperature Moderately Stable Wind Speed (mph) 3.6-7.5 7.6-11.5 12.6-18.5 18.6-24.5 >24.6 Total 0.12 0.00 0.00 O.QO 0.00 033 0.24 0.00 0.00 0.00 0.00 132 1.06 0.01 0.00 0.00 0.00 3.67 053 0.06 0.QO 0.00 0.00 1.96 0.66 0.Ql 0.00 0.00 0.00 1.51 0.07 0.QO O)~O 0,00 0.0Q 0.47 0:02 0.00 0.00 0.00 0.00 0.29 0.11 o.oi 0.00 0.00 0.00 035 0.23 0.07 0.00 0.00 0.00 0.63 031 0.04 0.01 0.00 0.00 o.n 037 0.14 0.02 0.00 0.00 1.03 0.25 0.05 0.01 0.00 0.00 0.73 0.12 0.07 0.05 0.00 0.00 0.44 0.12 0.02 0.01 0.00 0.00 0.25 0.13 0.01 0.00 0.00 0.00 0.28 0.10 0.01 0.00 o.oi 0.00 0.26 4.44 0.51 0.11 o.oi 0.00 14.28 Total Period AIIB011n 138 Total Period All Boon 0 Total Period ABBoun 284 Total Period AIIBoun 1194 8783 I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I .I I I I I I I Site: BV Period of Record"" Elentioll: Speed: SP150P Stability Cius: G Wind Direetion 0.6-3.5 N 0.22 NNE 0.54 NE 130 ENE 0.78 E 0.98 ESE 0.38 SE 0.17 SSE 0.14 s 0.22 SSW 03~ SW 0.28 WSW 026 w 020 WNW 0.12 NW 0.08 NNW 0.12 Total 6.11 Calm Boan not Included above for: Variable Direction Houn for: Invalid Houn for: N11J11ber of Valid Honn for tlus Table: Total Houn for the Period: Page 15 of 16 Joint frequenc, Diltribution Percent Hqurs at~ 'Yind -~ a!l(f Direction Total Period,,, 01/01/2020 01:00 -12'3112029 23:00 Report Printed On: 03/25/202114:44 AIIHoun Dinctioa: DI150P Lap,e: DT150-35 Delta Tempetatwe Extremely ~le W'.h;ld Speed (mph) 3.6-7.5 7.6-12.5 ll.6-18.5 18.6-24.5 >24.6 Total 0.01 0.00 0.00 0.00 0.00 0.23 0.16 0.00 0.QO 0.00 0.00 0.69 0.39 0.OQ 0.00 0.00 0.00 1.70 0~ 0.00 0.00 0.00 0.00 0.99 0.48 o:oo 0.()0 0.00 0.00 1.46 0.()4 0.00 0.9() 0.00 0.00 0.42 o.~ 0.(!O 0.00 0.00 0.00 0.23 0.17 0.00 0.()0 0.00 0.00 0.31 0.12 0.02 0.00 0.00 0.00 0.36 0.28 0.0,4 0.00 0.00 0.00 0.63 0.43 0.05 0.00 0.00 0.00 0.75 0.18 0.02 0.01 0.01 0.00 0.49 0.08 0.04 ~ 0.00 0.00 0.00 0.32 0.10 0.9() 0.00 0.01 0.09 0.23 0.()(i 0.00 0.00 0.01 0.00 0.16 0.02 0.00 0.00 0.00 0.00 0.14 2.79 0.17 0.01 0.04 0.00 9.11 Total Period ADHoun 138 T"tal Period ADHoan 0 Tetal Period ADHoun 284 Total Period ADHoan 762 8783

Site: BV Period of Record.. Elevation: Speed: SP150P Stability Cius: ALL Wind Direcdoa 9-'-3.5 N 1.55 NNE 3.06 NE 6.46 ENE 4.03 E 3.04 ~ 1.75 SE 0.99 ~ 0.73 s 0.87 SSW 1.26 SW 1.29 WSW 122 w 127 WNW 0.90 NW 0.90 NNW 0.99 Total 3031 Calm Houn not Indnded above for: Variable Direction Houn for: Invalid Boan for: Number of Valid HCHlll for this Table: Total Honn for the Period: Page 16 of 16 Joint Frequency Distribution Percent Hours at Each Wind Speed and Dim:ti.on Total Period 01/01/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/25/202114:44 AD Hours Direetioit: DI150P Lapse: DT150-35 Delta Tcmperatme Wind Speed (mph) 3.6-7.5 7.6-ll.5 ll.6-18.5 18.6-24.5 >24Ji Total 1.93 0.49 0.04 0.00 0.00 4.01 3.~1 0.78 0.04 0.00 0.00 6.98 4.78 0.66 0.01 0.00 0.00 11.91 3.42 0.90 0.01 0.00 0.00 836 321 oi68 0.~ 0.00 0.00 6.97 136 0.48 0.08 0.00 0.00 3.67 0.93 0.48 0.07 0.00 0.00 2.48 135 0.41 0.06 0.00 0.00 2.55 1.40 1.09 0.06 0.00 0.00 3.42 1.50 1.51 0.18 0.00 0.00 4.44 2.24 2.52 0.45 0.02 0.00 6.53 222 2.67 0.74 0.10 0.oI 6.96 2.63 5.00 2.57 036 0.04 11.86 332 3.11 1.64 028 0.04 928 2.45 1.66 0.54 0.07 0.ot 5.63 2.44 1.42 0.07 0.01 0.00 4.94 3830 23.85 6.61 0.84 0.10 100.00 Total Period ADHoun 138 Total Period AD Hoon 0 Total Period AIIHoun 284 Total Period AIIHoun 8361 8783 I I I I 1 I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BY Period of Record"' Elevatlo: Speed: SP500P Stabllity Cius: A Whtd Direction 0.6-3.5 N 0 NNE 0 NE 1 ENE 0 E 0 ESE 0 SE 0 SSE 0 s 0 SSW 0 SW 0 WSW 0 w 0 WNW 0 NW 0 NNW 0 Total 1 Calm Boun not Indaded above for: Variable Direction Boan for: Invalid Boan for: Number of Valid Boan for th.ii Table: Total Boun for the Period: Page 1 of 16 Joint Frequency Distribution Hours at Each Wmd Speed and Direction Total Period 01/01/2020 01:00'-12/31/2020 23:00 Report Printed On: 03/25/202114:44 All Hours Direction: O1500P Lapse: DTS00-35 Delta Tcmpcrefure Extremely Unstable Wind Speed (mph) 3.6-7.5 7.12.5 12.6-18.5 18.6-24.5 >24.6 Total 3 12 2 0 0 17 2 9 0 0 0 11 0 8 2 0 0 11 2 4 0 0 0 6 1 12 2 0 0 15 2 6 1 0 0 9 3 3 2 0 0 8 0 13 2 0 0 15 1 2 0 0 0 3 0 1 0 0 0 1 0 2 0 0 0 2 0 1 0 0 0 1 2 2 0 0 0 4 2 10 0 0 0 12 2 3 0 0 0 5 2 1 0 0 0 3 22 89 11 0 0 123 Total Period AIIBoun 37 Total Period AIIBoun 0 Total Period All Boan 284 Total Period AIIBoun 123 8783

Site: BV Period of Record* Eleva&.: Stbllity Claa: B Whld Direction N NNE NE ENE E ESE SE SSE s SSW SW WSW w WNW NW NNW Total SP500P 0-'-3.5 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 3 Calm Ho11n not Included above for: Variable Directioa Hean for: hvalid Hours for: Number of Valid Roan for thb Table: Total Roan for the Period: Page 2 of 16 Joint Freqnency-Diltrtbntion Hours at~ Wind Speed and Direction Total Period 01/01/2020 01:00 - 12/31/2020 23:00 RcportPrintod On: 03/25/202114:44 ADHoun Dinctio: D1500P Lapte: DTS00-35 Delta Tempe,atwe Moderately Unstable Wind Speed (mph) 3.6-7.5 7.6-12.S 12.6-18.5 18.6-24.5 >24.6 Total 0 7 0 0 0 7 6 s 1 0 0 12 3 14 0 0 0 17 5 3 1 0 0 9 2 7 1 0 0 10 6 8 4 2 0 20 4 2 4 0 0 10 1 9 0 0 0 10 1 3 1 0 0 5 0 5 3 0 0 8 0 2 2 0 0 4 1 5 3 0 0 9 3 11 5 1 0 20 7 18 5 0 0 31 1 6 0 0 0 8 4 7 1 0 0 13 44 112 31 3 0 193 Total Period ADHon 37 Total Period ADHoan 0 Total Period ADHoan 284 Total Period ADHoun 193 8783 I I I I I I, I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Site: BV Period of Record* Elevation: Speed: SP500P Stability Cius: C Wid Direc:tlo11 0.6-3.5 N 1 NNE 1 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 s 0 SSW 0 SW 0 WSW 0 w 0 WNW 2 NW 1 NNW 1 Total 6 Calm Honn BOt lcloded above for: Variable Dinctioo Hoon for: Invalid Boan for: Number of Valid Boan for thh Table: Total Hoon for the Period: Page 3 of 16 Joint Frequency DtstrlbuU.on Hours at Each Wind Speed and Direction Total Perio4 01/011'2020 01:00 - 121311'2020 23:00 R.eportPrinted On: 03/'lS/202114:44 AllHoun D~: DISOOP DTS00-35 Delta Temperature _Slightly Unstable Wind Speed (mph) 3.6-7.5 7.6-ll.5 ll.6-18.5 18.6-24.5 >24.6 T~ 8 13 3 0 0 25 6 10 2 0 0 19 12 2 0 0 0 14 I s 0 0 0 6 5 2 1 0 0 8 7 s I 1 0 14 3 7 3 0 0 13 5 10 3 0 0 18 3 15 3 0 0 21 0 10 7 0 0 17 5 6 J 0 0 12 0 16 1 0 22 7 28 21 7 2 65 9 37 23 9 6 86 11 11 10 1 0 34 3 7 3 0 0 14 85 173 97 19 8 388 Total Period All Hoon 37 Total Period All Hoon 0 Total Period AIIHon 284 Total Period AIi Hoon 388 8783

Site: BV Period of Record* Elevation: Speed: SP500P Stability Clut: D Wind Direction 0.6-3.5 N 15 NNE 17 NE i9 ENE 20 E 18 ESE 20 SE 10 SSE g s 11 SSW 7 SW 21 WSW 12 w 26 WNW 25 NW 14 NNW 14 Total 257 Calm Boan not Indded above for: Variable Diniction Houn for: Invalid Hon for: Nmber of Valid Hollff for tkb Table: Total Hours for die Period: Page 4 of 16 Report Printed On: 03/lS/202114:44 Joint Frequency Dimibution Hours at Each Wmd Speed and Direction Total Pe1'fo4 All BOW"II 01/01/2020 0l:00-12/31/2020 23:00 DiRcdon: DBOOP Lape: DTI00-35 Delta Tempetatwe Neutral Wind Speed (mph) 3.6-7.5 7.6-11.5 12.6-18.5 18.6-2".5 >24.6 Total 66 102 18 0 0 201 68 72 11 1 0 169 76 53 7 0 0 155 54 46 9 0 0 129 58 78 8 0 0 162 58 46 24 6 0 154 41 69 25 5 0 150 27 43 11 2 0 91 26 31 40 2 1 111 21 72 83 17 0 200 23 96 158 55 3 356 36 85 144 45 9 331 46 158 252 175 49 706 61 219 161 59 26 551 46 153 41 6 1 261 68 121 35 0 0 238 n5 1444 1027 373 89 3965 T@tal Period ADHon 37 Total Period ADHoun 0 Total Period ADHon 284 Total Period ADHoun 3965 8783 I I, I I I I I I I I I I I I I I I I

I I I I I I I I I I ,I I I I I I I Site: BV Period ofReconl

ElevatiGB:

Speed: SP500P Stabllity Clau: E Wind Direction 8.6-3.5 N 26 NNE 15 NE 26 ENE 38 E 27 ESE 39 SE 25 SSE 38 s 29 SSW 27 SW 27 WSW 38 w 45 WNW 39 NW 24 NNW 20 Total 483 Calm Houn not Included above for: Variable Dinction HOtln for: Invalid Holll'l!I for. Number of Valid Houl'l!I for this Table: Total Houn for the Period: Page 5 of 16 Report Printed On: 03/2Sl'l02114:44 Joint Freq1_1ency Diltribution Hours at Each Wind Speed and Direction TotaJJ.>~ AIIHoun 01/01/2020 01:00 - 12/31/2020 23:00 Dtrecµon: D1500P Lapte: DT500-35 DeltaT~ . SHghtfy Stable Wind~ (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 >24.6 Total 34 34 11 0 0 105 32 28 4 1 0 80 54 22 0 0 0 102 36 39 7 0 0 120 65 40 10 0 0 142 15 54 22 0 0 190 55 51 10 1 0 142 36 45 27 10 0 156 36 45 48 10 0 168 30 40 55 29 0 181 35 74 Ul 74 5 336 72 52 37 19 3 221 74 95 44 36 7 301 67 72 31 5 3 217 29 35 13 0 0 101 26 23 3 0 0 72 756 749 443 185 18 2634 Total Period AD Bown 37 Tobi Period ADHoul'II 0 Total Period AOHoun 284 Tobi Period AOHoun 2634 878J

Site: BV Period of Record* Elevadoa: Speed: SPSOOP Stability Cius: F Wind Direction 0.6-3.5 N 15 NNE 10 NR 10 ENE 18 E 21 ESE 18 SE 17 SSE 14 s 14 SSW 13 SW 19 WSW 21 w 24 WNW 15 NW 7 NNW 8 Total 244 Calm Hoen ot Incladed above for. Variable Direction Ho11n for: hvHdHounfor: Number of Valid HOtlrl for this Table: Total HOVI for the Period: Page 6 of 16 Report Printed On: 03!25/202114:44 Joint Frequency Distribution Hounl at Each Wind Speed and Direction Total Period AIIHoun 01/01/2020 01:00 - 12/31/2020 23:00 Directioa: DIS00P Lapse: DTS00-35 Delta Tempcratarc Moderately Stable Wind Speed (mph) 3.6-7:5 7.6-12.5 12.6-18.S 18.6-24.5 >24.(i Total 7 8 0 0 0 30 12 3 0 0 0 25 21 5 0 0 0 36 30 7 0 0 0 55 25 6 0 0 0 52 38 7 1 0 0 64 48 14 6 0 0 85 19 31 11 0 0 75 26 39 27 0 0 106 30 35 26 2 0 106 24 29 20 6 0 98 54 12 2 0 0 89 30 17 6 0 0 77 34 19 1 0 0 69 6 10 1 0 0 24 9 3 0 0 0 20 413 245 101 8 0 1011 Total Period AilHou.n 37 Total Period ADHan 0 Total Period AilHon 284 Total Period AD Hot1n 1011 8783 I I I .I I I I I I I I I I

I I I l I I I I I I I I I I I Site: BV Period of Record

Elevatiea:

Speed: SPSOOP Stability~: G Wlad Direction 0.6-3.5 N 1 NNE 1 NE 0 ENE 3 E 4 ESE 2 SE 1 SSE 0 s 2 SSW 1 SW 1 WSW 0 w 2 WNW 0 NW 0 NNW 1 Total 19 Calm Hoen not Included above for: Variable Direction Honn for: Invalid Honn for: Namber ofVaHd Honn for t:bil Table: Total Honn for tbe Period: Page 7 of 16 Joint Frequency Distribution Hours at Each Wind Speed and Direction Total Period 01/01/2020 0J:00 -12/31/'2020 23:00 Report Printed On: 03/25/.202114:44 AllHoun Direcdoa: DISOOP DTS00-3S Delta Temperature Extremely~ Wind_ Speed (mph) 3.6-7.5 7.6-12.5 12.~18.5 18.~24.5 >U.6 Total 0 0 0 0 0 1 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 4 3 0 0 0 0 7 8 0 0 0 0 10 s 1 0 0 0 7 s 1 3 6 0 9 14 9 5 0 o, 30 23 12 7 0 0 43 1 9 11 2 Q 24 8 0 0 0 0 8 1 0 0 0 0 3 0 0 0 0 0, 0 0 0 0 0 0 0 0 0 0 0 0 1 69 32 26 2 0 148 Total Period AIIHoan 37 Total Period AIIHon Q ~qtal Period All Honn 284 Total Period AIIHoan 148 8783

Site: BY Period of Record= Elevatioa: Speed: SP500P Stability Clan: All Wind Direction 0.6-3.5 N 58 NNE 44 NE 56 ENE 79 E 70 ESE 79 SE 53 SSE 60 s 56 SSW 48 SW 68 WSW 71 w 97 WNW 82 NW 47 NNW 45 Total 1013 Calm Hon not Iacladed above for: Variable Direction Hovs for: Invalid Holll'!I for: Number of Valid Houn for this Table: Total Hoon for the Period: Page 8 of 16 Joint Frequency Diltrlbotion Hours at Eacli' Wind-Speed arid Direction Total Petiocr 01/01/2020 01:00 - 12131/2020 23:00 Report Printed On: 03/25/2021 14:44 AD Honn Dlreetlon: DI500P Lap9e: DT500-35 Delta Tempe1-anac Wind Speed (mph) 3.7.5 7.6-12.5 12.6-18.5 18.6-24.5 > 24.(i Total 118 176 34 0 0 386 126 127 18 2 0 317 166 104 9 0 0 335 129 104 17 0 0 329 159 145 22 0 0 396 194 126 53 9 0 461 159 147 50 6 0 415 93 152 57 12 0 374 107 144 124 12 1 444 104 175 181 48 0 556 88 2i8 313 137 8 832 171 160 202 65 12 681 163 311 328 219 58 1176 180 375 221 73 35 966 95 218 65 7 1 433 112 162 42 0 0 361 2164 2844 1736 590 115 8462 Total Period AilHoun 37 Total Period AIIHoan 0 Tot.I Period AilHoan 284 Total Period AIIHoun 8462 8783 I. I. I I I I I I I I I I .I I I I I I I

I I I I I I I ,I ,I I I I J I I I I ,I. I Site: BV Period efRecord

Elevation:

Speed: SPSOOP Stability Claa: A Wiad Direction 0.6-3.5 N 0.00 NNE 0.00 NE 0.01 ENE 0.00 I: 0.00 ESE 0.00, SE 0.00 SSE 0.00 s 0.00 ~ 0.OQ SW 0.00 WSW 0.00 w 0.00 WNW 0.00 NW 0.00 NNW 0.00 Total 0.oI Calm Honn not hcladed above for: Variable Diredion Hown for: Invalid Hoon for: Number of V aHd Ho11n for~ Table: Total Hoon for tJte Period: Page 9 of 16 Joint Frequency Distribution Percent Hours at Each Wmd Speed and Direction TotalP~- 01/01/2020 01:00-12/31'2020 23:00 ReportPrinted On: 03/25/202114:44 All Hoon Direction: DBOOP Lapse: DT500-35 DeltaT~ Extremely Unstable Wind Speed (mph) 3.6-7.5 7.6-12.5 ll.6-18.5 18.6-24.5 >24.6 Total 0.04 0.14 0.02 0.00 0.00 0.20 o.~2 0.11 0.QO 0.00 0.00 0.13 0.00 0:09 0.02 0.00 0.00 0.13 0.02 0.Q5 0.00 0.00 0.00 0.07 0.01 0.14 o.~ 0.00 0.00 0.18 0.02 0.07 0.01 0.00 0.00 0.11 0.Q4 0.04 0.02 0.00 0.00 0.09 0.00 0.15 0.02 0.00 0.00 0.18 0.01 0.02 0.00 0.00 0.00 0.04 0.00 0.OJ 0.00 0.00 0.00 0.01 0.00 0.02 0.00 0.00 0.00 0.02 0.00 0.01 0.00 0.00 0.00 0.01 o.oi 0.02 0.QO 0.00 0.00 0.05 0.02 0.12 0.00 0.00 0.00 0.14 0.02 0.04 0.00 0.()0 0.00 0.06 0.02 0.oI 0.00 0.00 0.00 0.04 026 1.05 0.13 0.00 0.00 1.45 Total Period AII_Houn 37 Total Period Allllolln 0 T~~Period All Hoon 284 Ti,tal Period AIIHo-..n 123 8783

Site: BY Period ofReconl

Elevation:

Speed: SP500P Stabllity Cius: B Wlad Direction 0.6-3.5 N 0.00 NNE 0.00 NE 0.00 ENE 0.00 E 0.00 ESE 0.00 SE 0.00 SSE 0.00 s 0.00 SSW 0.00 SW 0.00 WSW 0.00 w 0.00 WNW 0.01 NW o.oi NNW 0.01 Total 0.04 Calm Honn not Inclded above for: Variable Direction Boan for: hvalid Boan for: Nt1111ber of Valid Houn for this Table: Total Boan for tlte Period: Page 10 of 16 Joint Frequency DbtrlbuUon Percmt Hours at Each Wind Speed and Direction Total Period 01/01/2020 01:00 -12/31/2020 23:00 Report Printed On: 03/25/202114:44 AllHoun DBOOP Lapse: DT500-35 Delta Tempe1atwe Moderately Unstable Wind Speed (mph) 3.6-7.5 7.6-12:5 ll.6-18.5 18.6-14.5 >24.6 Total 0.00 0.08 0.00 0.00 0.00 0.08 0.07 0.06 0.01 0.00 0.00 0.14 0.04 O.i7 0.00 0.00 0.00 0.20 0.06 0.04 0.01 0.00 0.00 0.11 0.02 0.08 0.01 0.00 0.00 0.12 0.07 0.09 0.05 0.02 0.00 0.24 0.05 0:02 0.05 0.00 0.00 0.12 0.01 0.11 0.00 0.00 0.00 0.12 0.01 0.04 0.01 0.00 0.00 0.06 0.00 0.06 0.04 0.00 0.00 0.09 0.00 0.02 0.02 0.00 0.00 0.05 0.01 0.06 0.04 0.00 0.00 0.11 0.04 0.13 0.06 0.01 0.00 0.24 0.08 0.21 0.06 0.00 0.00 037 0.01 0.07 0.00 0.00 0.00 0.09 0.05 0.08 0.01 0.00 0.00 0.15 0.52 132 037 0.04 0.00 2.28 Total Period All Honn 37 Total Period AIIHoun 0 Total Period All Honn 284 Total Period All Honn 193 8783 I,, ,I I

I I

I, I I I I I I I I .1

I I I I I l I I I I I -1 I I I. I Site: BV Period of Record "' Elevation: Speed: SPSOOP StabHity Cius: C Wiad Direction i.6-3.5 N o.q1 NNE 0.01 NE 0.00 ENE O.OQ E 0.09

ESE O.QO, SE 0.00

~ 0.00 s 0.00 ~ 0.00 SW 0.00 WSW 0.00 w 0.00 WNW 0.02 NW 0.01 NNW O.oI Total 0.07 Calm Boan not Included above for: Variable Direction Honn for: Invalid Hoon for: Nam.her of Valid Ho1!n for tills Table: Total Honn for th~ Period: Page 11 of 16 Joint Freque:pcy Diltribution Percent Hours ~ Each Wmd Speed llD.d Direction TotalP~ OVOl/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/25/202114:44 All Hours Dinc(ion: D1500P ~ DTS00-35 Delta Tempe.tetme Slightly Ur$t)le Wind Speed (mph) 3.6-7.5 7.6-tz.s ll.6-18.5 18.6-24.5 >24.6 Total 0.09 0.15 0.04 Q.00 0.00 030 0.07 0..12 0.02 O.QO 0.00 0.22 0:14 0,:02 0.00 0.00 0.00 0.17 0.01 0.06 Q.00 0.00 0.00 0.07 O,J)6 0.02 0.01 0.00 0.00 0.09 0.08 0.0§ 0.01 0.01 0.00 0.17 0,04 0:,08 0.04 0.00 0.00 0.15 o:06 o.u 0.04 0.00 0.00 0.21 0:04 0.18 0.04 0.00 0.00 0.25 0.00 0.12 OJ),8 0.00 0.00 0.20 0.06 0.07 0.01 0.00 0.00 0.14 0.00 0.06 0.19 0.01 0.00 0.26 0.08 033 0~ 0.08 0.02 0.77 o.p 0.44 0.27 0.11 0.07 1.02 0.13 0.13 0.12 0.01 0.00 0.40 0.04 0.08 0.04 0.00 0.00 0.17 1.00 2.04 1.15 0.22 0.09 4.59 Total Period AJI_Houn 37 Total Period NJHoun 0 Total Period AIIHoun 284 T!)talPeriod AIIHoun 388 8783

Site: BV Period efReeord

Elevation:

Speed: SP500P Stability Cius: D Wind Direetioa 0.6-3.S N 0.18 NNE 0.20 NE 0.22 ENE 0.24 E 0.21 &SE 0.24 SE 0.12 SSE 0.09 s 0.13 SSW 0.08 SW 0.25 WSW 0.14 w 0.31 WNW 0.30 NW 0.17 NNW 0.17 Total 3.04 Calm Hon not Indaded above for: Variable Direction Boan for: Invalid Boars for: Number of Valid Ho11r1 for tllll Table: Total Boan for the Period: Page 12 of 16 Joint Frequency Distrlbutioa Percent Hours at :Each Wind Speed and Direction Total Period 01/01/2020 01:00 - 12/31/2020 23:00 ReportPrintod On: 03/lS/202114:44 AD Hoon DirectiOII: DBOOP Lapse: DT500-35 Delta Tempe1atwe Neutral Wind Speed (mph) 3.6-7.5 7.6-12.5 12.6-18.5 18.6-24.5 >24.6 Total 0.78 1.21 0.21 0.00 0.00 238 0.86 0.85 0.13 O.oI 0.00 2.00 0.90 0.63 0.08 O:QO 0.00 1.83 0.64 o.54 0.11 0.00 0.09 1.52 0.69 0.92 0.09 0.00 0.00 1.91 0.69 0.54 0.28 0.07 0.00 1.82 0.48 0.82 ojo 0'.06 0.00 1.77 032 0.51 0.13 0.02 0.00 1.08 031 0.37 0.47 0.02 0.01 131 0.25 0.85 0.98 0.20 0.00 236 0.27 1.13 1.87 0.65 0.04 4.21 0.43 1.00 1.70 0.53 0.11 3.91 0.54 1.87 2.98 2.07 0.58 8.34 0:72 2.59 1.90 0.70 0.31 6.51 0.54 1.81 0.48 0.07 O.oI 3.08 0.80 1.43 0.41 0.00 0.00 2.81 9.16 17.06 12.14 4.41 1.05 46.86 Total Period AIIHoun 37 Total Period AIIHOlln 0 Total Period AIIHoun 284 Total Period AIIHoun 3965 8783 I I ,1 I _f I I I I I I I ,I I I

I I I l I I I ,,I I I I I I I 1-1 I-I, I Site: BY Period ofReconl a Elevation: Speed: Stability Cius: E Wind Directioll 0.6-3.5 N 031 NNE 0.18 NE 031 ENE 0.45 E 032 ESE o.~ SE 030 SSE 0.45 s 0.34 SSW 032 SW 0.32 WSW 0.45 w 0.53 WNW 0.46 NW 0.28 NNW 0.24 Total 5.71 Calm Houn not Included above for: Variable Direction Houn for: Invalid Boan for: Number of Valid :e;o~n for thil Table: Total Houn for the Period: Page 13 of 16 Joint Frequency >>.atrlbution Percent Hours at Each Wind Speed and Direction Total Period, 01/01/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/lS/202114:44 All Houn Dtrecdon: DBOOP DT500-35 Delta Temperature Slightly Stable Wlnd~(mph) 3.<,-7.5 7.6-12.5 12.6-18.5 18.6-2-1.5 >2.f.6 Total 0.40 0.40 0.13 0.00 0.00 1.24 0.38 033 0.05 0.01 0.00 0.95 0.64 0.26 0.00 0:00 0.00 1.21 0.43 0.46 0.08 0.00 0.00 1.42 0.77 0.47 0.12 0.00 0.00 1.68 0.89 0.64 0-Z(> 0.00 0.00 2.25 0.65 0.60 0.12 0.01 0.00 1.68 0.43 0.53 032 0.12 0.00 1.84 0.43 0.53 0.57 0.12 0.00 1.99 0~5 0.47 0.65 034 0.00 2.14 0.41 0.87 1.43 0.87 0.06 3.97 0.85 0.61 0.44 0.22 0.04 2.61 0.87 1.12 0.52 0.43 0.08 3.56 0.79 0.85 037 0.06 0.04 2.56 034 0.41 0.15 0.00 0.00 1.19 031 0.27 0.04 0.00 0.00 0.85 8.93 8.85 5.24 2.19 0.21 31.13 Total Period AU Honn 37 Total Period AIIHoun 0 Total Period AU Honn 284 Total Period AIIHoan 2634 8783

Site: BV Period of Record

Elevation:

Speed: SP500P StablHty Clan: F Wlad DirecdoD 0.6-3.5 N 0.18 NNE 0.12 NE 0.12 EMC 0.21 E 0.25 ESE 0.21 SE 0.20 SSE 0.17 s 0.17 SSW 0.15 SW 0.22 WSW 0.25 w 0.28 WNW 0.18 NW 0.08 NNW 0.09 Total 2.88 Calm Honn ot Inclnded above for: Variable Direction Honn for: Invalid Honn for: Nnmber efValld Honn for th.ii Table: Total Honn for 1H Period: Page 14 of 16 Joint Frequency Distribation Percent Hours at Each Wind Speed and Direction Total Perf9d 01/01/2020 01:00 - 12/31/2020 23:00 Report Printed On: 03/.25/2021 14:-44 All Hoon Direction: DI500P Lapse: DT500-35 Delta Tempetature Moderately Stable Wind Speed (mph) 3.6-7.5 7.6-12.5 U.6-13.5 18.6-24.5 >24.6 Total 0.08 0.09 0.00 0.00 0.00 035 0.14 0.04 0.00 o:oo 0.00 030 0.25 0.06 0.00 0.00 0.00 0.43 035 0.08 0.00 0.00 0.00 0.65 030 0.07 0.00 0.00 0.00 0.61 0.45 0.08 0.01 0.00 0.00 0.76 0.57 0.17 0.07 O.QO 0.00 1.00 0.22 031 0.13 0.00 0.00 0.89 031 0.46 032 0.00 0.00 125 035 0.41 031 0.02 0.00 1.25 0.28 034 0.24 0.07 0.00 1.16 0.64 0.14 0.02 o.~ 0.00 1.05 035 0.20 0.07 0.00 0.00 0.91 0.40 0.22 0.01 0.00 0.00 0.82 0.07 0.12 O.oI 0.00 0.00 0.28 0.11 0.04 0.00 0.00 0.00 0.24 4.88 2.90 1.19 0.09 0.00 11.95 Total Period All'Honn 37 Total Period AIIHoun 0 Total Period AIIHoun 284 Total Period AIIHoun 1011 8783 .I I I I I I I

1 11 I

I, I I

Site: BV Period ofReconl-Elevatioa: Speed: SP500P Stability Cius: G Whld D1rectloa 0.6-3.5 N 0.01 NNE 0.01 NE 0.00 ENE 0.04 E 0.05 ESE 0.02 SE 0.01 SSE 0.00 s 0.02 SSW 0.01 SW 0.01 WSW 0.00 w o.~ WNW 0.00 NW 0.00 NNW 0.01 Total 0.22 Calm Hoen aot lacluded above for: Variable Directioll Houn for: Invalid Hoon for: Namber of Valid Houn fur this Table: Total Hoon for the Period: Page 15 of 16 Jo~t ¥requency I>f:i~ntion Percent H~ at Each Wind Speed~ Direction Total~~:,.. Ol/01/202Q 01:00 - 12/31/2020 23:00 Report Printed On: 03/25!202114:44 All Hours Directioa: DB_OO_P Lape: DT500-35 Delta Temperature Extremely Stal?,le Wind."~ (mph) 3.fr7.5 7.6-12.5 12.6-18.5 18.6-~.5 >:24.6 Total O.OQ 0.00, 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.09 0.01 0,00, 0.00 0.00 0.00, 0.00 0.00 0.01 0.00 0.00 o.po 0.00 0.05 o:04 0.00 0.00 0.00 0.00 0.08 0.09 0.9() 0.09 0.00 0.00. 0.12 o.~ 0.01 0.00 0.00 0.00 0.08 0.06 0.01 0.04 0.00 0.00 0.11 0.17 0.11 0.06 0.00 0.00 035 0.27 0.14 0.08 0.00 0.00 0.51 0.01 0.11 0.13 0.02 0.00 028 0.09 0.00 0.00 O.OQ 0.00 0.09 0.01 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 o.qo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.82 038 031 0.02 0.00 1.75 Total Period AD Honn 37 Total Period ~Hoon 0 T.(!talPeriod ~-Boan 284 Total Period AD Honn 148 8783

Site: BV Period of Record

Elevation:

Speed: SP500P Stability Clan: ALL Wind Directioll 0.6-3.5 N 0.69 NNE 0.52 NE 0.66 ENE 0.93 E 0.83 ESE 0.93 SE 0.63 SSE 0.71 s 0.66 SSW 0.57 SW 0.80 WSW 0.84 w 1.15 WNW 0.97 NW 0.56 NNW 0.53 Total 11.97 Calm Houn aot hct.ded above for: Variable Direction Boan for: Invalid Hoon for: Namber ofVaHd Houn for this Table: Total Honn for tlae Period: Page 16 of 16 Joint Frequency Distribution Percent Hours at Each Wind Speed and Direction Total~erlod 01/01/2020 01:00 - 12'31/2020 23:00 Report Printed On: 03/25/202114:44 AilHo1ll"II DI500P Lapse: DTS00-35 Delta Tempet atme Wind Speed (mph) 3.6-7.5 7.6-12.S ll.6-18.5 18.6-24.5 > 24.6 Total 139 2.08 0.40 0.00 0.00 4.56 1.49 1.50 0.21 0.02 0.00 3.75 1.96 1.23 0.11 0.00 0.00 3.96 1.52 1.23 0.20 o.~ 0.00 3.89 1.88 1.71 0.26 0.00 0.00 4.68 2.29 1.49 0.63 0.11 0.00 5.45 1.88 1.74 0.59 0.07 0.00 4.90 1.10 1.80 0.67 0.14 0.00 4.42 1.26 1.70 1.47 0.14 0.01 5.25 1.23 2.07 2.14 0.57 0.00 6.57 1.04 2.58 3.70 1.62 0.09 9.83 2.02 1.89 239 0.77 0.14 8.05 1.93 3.68 3.88 2.59 0.69 13.90 2.13 4.43 2.61 0.86 0.41 11.42 1.12 2.58 0.77 0.08 0.01 5.12 1.32 1.91 0.50 0.00 0.00 427 25.57 33.61 20.52 6.97 136 100.00 Total Period AD Honn 37 Total Period AIIHoun 0 Total Period AD Hoon 284 Total Period AD Boan 8462 8783 I, I, I ,I ,I ,I .I; I I I .I -1 I I I I, I I I

I I I I,, I I I I I I I I I I I I I I Beaver Valley Power Station - Units 1 & 2 Annual Radioactive Effluent Release Report Calendar Year - 2020 Unit 1 and 2 Offsite Dose Calculation Manual Changes RTL# A9.690E, Attachment 2 ..,,.~,--- .. ~...... ----.,, ~ r /; ~. Endosed is a complete copy of the OOCM that indudes: Change (46) of the ODCM (Effective: July 2020) A complete copy of the ODCM has been provided to the following offices: United States Nudear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001 United States Nuclear Regulatory Commission Regional Administrator 2100 Renaissance Blvd., Suite 100 King of Prussia, PA 19406-2713 For a complete copy of the ODCM, contact Radiological Effluents Administrator at 724-682-7667.

I I I I I I I I I I I I I I I I I I Beaver Valley Power Station - Units 1 & 2 RTL# A9.690E, Attachment 3 Annual Annual Radioactive Effluent Release Report Calendar Year - 2020 Unit 1 and 2 Carbon-14 (C-14) Dose Estimates ~, , ~* ~ Gaseous doses from carbon-14 were calculated in a_ccordarice with EPRI and Regulatory Guide 1.109 methodology. Other considerations were made* in the ealculations; daylight hours and growing season. Liquid effluent release doses are considered to be insignificant and are not included in this report. This report does not address the amount of carbon-14 disposed of in shipments of solid waste and irradiated fuel. The term "other" discussed below refers to liver, total body, thyroid, kidney, lung and GI. Doses for these organs are assumed to be equal. The receptor chosen was selected based upon the default ODCM receptor - NW 1432 meters (0.89 miles). It is assumed that only vegetation and inhalation exposure pathways are available. The maximum 1:>ounding dose to a member of the public resulting from atmospheric C-14 releases from Unit 1 was determined to be less than 2.52 mrem to the bone and less than 0.50 mrem to all other organs. The maximum bounding dose to a member of the public resulting from atmospheric C-14 releases from Unit 2 was determined to be less than 2.46 mrem to the bone and less than 0.49 mrem to all other organs. .r~~,. > I<"~.r1.;-,: i.i;-,! ~.--. ~r -.. <*::. -~"':~:~*, '.:": ~ ..,..... ~;..... '.~-~**.,;,;.:, 1 ~;.~~/..,, ~J: :;;;.,,t:. ;.. n~-;;Qj *. -,._...._,",.~;;.,. ,:"!}'z'.: =**Ih Infant Child Teen Adult Exposure Pathway Bone Other Bone Other Bone Other Bone Other Inhalation 0.06 0.01 0.08 0.02 0.06 0.01 0.04 0.01 Vegetation Ingestion 2.44 0.49 1.01 0.20 0.62 0.12 TOTAL 0.06 0.01 2.52 0.50 1.07 0.21 0.67 0.13 J . '4_ ~-: *."QQSe *¢alculat{o,n.s-*f~r Unit a... Exposure Pathway Infant Child Teen Adult Bone Other Bone Other Bone Other Bone Other Inhalation 0.05 0.01 0.07 0.01 0.05 0.01 0.04 0.01 Vegetation 2.39 0.48 0.99 0.20 0.60 0.12 Ingestion TOTAL 0.05 0.01 2.46 0.49 1.04 0.21 0.64 0.13 Bone I Other Bone I Other Bone I Other Bone I Other TOT AL 0.11 I 0.02 4.98 I 0.99 2.11 I 0.42 1.31 I 0.26

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station - Units 1 & 2 RTLA9.690E 2020 Annual Radiological Environmental Operating Report Energy Harbor Nuclear Corp. Beaver Valley Power Station - Units 1 & 2 Unit 1 License No. DPR-66 Unit 2 License No. NPF-73

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX RTLA9.690E Report Preparation and Submittal Requirements: The Beaver Valley Power Station (BVPS) Annual Radiological Environmental Operating Report (ARBOR) was prepared and submitted in accordance with the requirements contained in the following documents: BVPS Integrated Technical Specifications, Administrative Control 5.6.1 Offsite Dose Calculation Manual (ODCM) procedure l/2-ODC-3.03, Attachment T, Control 6.9.2, "Controls for RETS and REMP Programs " BVPS procedure 1/2-ENV-01.05, "Compliance with Regulatory Guide 1.21 and Technical Specifications " BVPS procedure 1/2-ENV-02.01, "Radiological Environmental Monitoring Program " NUREG-1301, "Off site Dose Calculation Manual Guidance: Standard Radiological Effluent Controls for Pressurized Water Reactors, Generic Letter 89-01, Supplement No.I, April 1991" BVPS Condition Report No. CR-2020-03313: REMP Air Station #32 Found Out-Of-Service BVPS Condition Report No. CR-2020-03315: REMP Air Station #27 Found Out-Of-Service BVPS Condition Report No. CR-2020-04581: REMP Air Station #51 Found Out-Of-Service BVPS Condition Report No. CR-2020-07822: REMP Air Station #27 Found Out-Of-Service BVPS Condition Report No. CR-2020-06859: REMP Air Station #27 Found Out-Of-Service BVPS Condition Report No. CR-2020-08878: REMP Air Station #48 Found Out-Of-Service BVPS Condition Report No. CR-2020-09353: REMP Air Station #27 Found Out-Of-Service BVPS Condition Report No. CR-2020-04804: Vendor Laboratory Failed QC Cross Checks for 1st Quarter of 2020 BVPS Corrective Action No. CA-2020-04804-001: Vendor Laboratory Failed QC Cross Checks for 1st Quarter of 2020 ii

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX Report Overview: RTLA9.690E The AREOR provides a detailed summary of the BVPS Radiological Environmental Monitoring Program (REMP). During the report period, samples of air, water, shoreline sediment, milk, fish, food crops, feed crops, vegetation, and direct radiation (in the vicinity of the BVPS site) have been measured, analyzed, evaluated, and summarized. During the report period, the BVPS radioactive effluent releases (as performed in accordance with the Radiological Effluent Technical Specification (RETS) program), did not exceed the limits identified in the BVPS Operating License, Technical Specifications and/or the Offsite Dose Calculation Manual (ODCM). The results of REMP verify that the effluent releases did not impact the environment with a measurable concentration of radioactive materials and/or levels of radiation that are higher than expected. Description of Pre-operational REMP (1974 - 1975): A pre-operational REMP was performed during the period 1974 through 1975. At that time, samples were collected and analyzed to determine the amount of radioactivity present in the environment prior to BVPS operation. The resulting values are considered a "baseline" to which current sample analyses can be compared. A summary of the pre-operational data is summarized in Table 2-3 of this report. Description of Operational REMP {1976 - Present): The operational REMP was initiated during calendar year 1976 and continued through the report period. During the past forty (43) years, radiation and radioactivity in the environment was monitored within a 10-mile radius of the site. A description of the operational REMP is outlined in Table 2-1 of this report. In general, two (2) types of samples were collected and compared during the report period, and are described as follows: Control Samples: These samples are collected from areas that are beyond measurable influence of BVPS operation and are used as reference data. Normal background radiation levels, or radiation present due to causes other than BVPS operation, can thus be compared to the environment surrounding the BVPS site. During the report period, two hundred fifty-nine (259) analyses were performed on samples from the control locations. This includes eight (8) analyses that were completed for thermoluminescent dosimeters (TLDs) at the control locations. Results of the analyses from the control locations are summarized in Table 2-2 of this report. Indicator Samples: Indicator samples are collected to determine the radiological impact of BVPS operation in the environment. These samples are collected from various locations near lll I I I I* I I. I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX RTLA9.690E the BVPS site. At a minimum, the samples are collected from areas where the BVPS contribution would indicate the most significant radiological impact. During the report period, one thousand five hundred eight (1,508) analyses were performed on samples collected from eighty-one (81) indicator locations. In addition, five hundred twenty (520) analyses were completed for TLDs at the indicator locations. Results of the analyses from the indicator locations are also summarized in Table 2-2 of this report. Comparisons: Current analysis results from the indicator samples were compared to both current control sample values and the pre-operational baseline to determine if changes in radioactivity levels were attributable to BVPS operation. Determination of Environmental Impact 2020 Sample Media and Analyses: Results for drinking water, surface water, shoreline stream sediment, fish, cow milk, goat milk, feedstuff, foodcrops, air particulate and air radioiodine media remained consistent with previous data. Minor increases and decreases were noted in most sample media, and any positive results attributable to the BVPS operation were consistent with station data of authorized radioactive discharges and were within limits permitted by the operating license and the ODCM. Other radioactivity detected was attributable to naturally occurring radionuclides, previous nuclear weapons tests, other man-made sources, and to the normal statistical fluctuation for activities near the Lower Limit of Detection (LLD). Airborne Exposure Pathway: This ODCM required pathway was evaluated via sampling of airborne radioiodine and airborne particulates. The results during this report period were similar to previous years. There was no notable increase in natural products and no detectable fission products or other radionuclides in the airborne particulate media during the year attributed to effluent releases from BVPS. Direct Exposure Pathway: This ODCM required pathway was evaluated via measurement of environmental radiation doses by use of Thermo Luminescent Dosimeters (TLDs). The results of TLD processing have indicated a stable trend and compare well with previous years. Ingestion Exposure Pathway: This ODCM required pathway was evaluated via sampling of milk, fish, and foodcrops (leafy vegetables). For milk samples, strontium-90 (attributable to past atmospheric weapons testing), was detected at levels similar to those of previous years. The gamma spectrometry analyses lV

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX RTLA9.690E indicated positive results for naturally occurring potassium-40 at average environmental levels. The fish samples indicated below LLD levels in each of the sample analyses. Foodcrop (leafy vegetation) samples indicated naturally occurring potassium-40 at average environmental levels. Waterborne Exposure Pathway: This ODCM pathway was evaluated via samples of drinking water, ground (well) water, surface (river) water and river sediment. Water samples were analyzed for tritium and gamma-emitting radionuclides. Tritium was identified in the indictor water samples. The value was well below the required LLD (2,000 picoCurie/liter). Iodine-131 analysis of drinking water indicated positive analyses, but the values were consistent with iodine-131 at the upstream surface (river) water control location and was not due to liquid effluent releases from BVPS. Sediment samples were collected from upstream of the site, at the discharge point of BVPS liquid effluent releases, and downstream of the site. Analysis of samples indicated naturally occurring radionuclides potassium-40, thallium-208, bismuth-214, lead-212, lead-214, radium-226, and actinium-228 in all results. The analyses also indicated cesium-137, but the values were consistent with cesium-137 at the control location, and most likely caused by previous nuclear weapons tests. Cobalt-58 and cobalt-60 were identified in some of the samples obtained at the shorelines of the BVPS Main Outfall Facility. This is not unusual because the BVPS site discharges cobalt-58 and cobalt-60 in liquid waste effluents. The activity detected at these sample locations is consistent with discharge data of authorized liquid effluent releases, and all liquid effluent releases during the report period did not exceed the release concentration limits set forth in the ODCM. Other Exposure Pathways: In addition to the samples collected from the exposure pathways described above, other media (i.e., feedstuff) were also collected. Results were consistent with previous years, with no degrading trends. Offsite Groundwater Monitoring (Historical): Since these samples are not required, they will no longer be collected as of 2017. For historical information, groundwater was collected semiannually by grab samples at locations within four (4) miles of the site, one (1) well in Hookstown, PA and one (1) well in Georgetown, PA. Each ground water sample was analyzed for tritium and is analyzed by gamma spectrometry. V I I I I I I I I I I I I I I I

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I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX RTLA9.690E Supplemental Sample Sites: REMP includes supplemental sampling sites in addition to the required sites set forth in the ODCM. The supplemental sites include three (3) air sampling sites, one (1) sediment site, one (1) milk animal feedstuff site, and five (5) soil sampling sites. Individual Dose vs. Natural

Background:

The radiation doses to man as a result of BVPS operations were calculated for both gaseous and liquid effluent pathways using computer software RADEAS which was newly implemented in 2019. The computer software follows Regulatory Guide 1.109 and site ODCM methodology. Dose factors listed in the ODCM are used to calculate doses from radioactive noble gases in discharge plumes. BVPS effluent data, based on sample analysis were used as the radionuclide activity input. The total doses to an individual were evaluated for all liquid and gaseous effluent pathways. The calculated dose to an individual member of the public from liquid effluent release was 0.0230 mrem whereas the gaseous effluent release was 0.3111 mrem. The incremental increase in total body dose from the operation of BVPS - Unit 1 and 2, is 0.0539% of the annual radiation exposure. Figure i-1 illustrates the individual dose from BVPS effluents and natural background dose. Figure i-1 Graph of Individual Dose from BVPS Effluents and Natural Background Dose 1000.00000 100.00000 10.00000 1.00000 e ~ .s 0.10000 / 8 0.01000 0.00100 0.00010 0.00001 re)~ VI

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX RlL A9.690E Summary: During the report period, radioactive effluent releases from the BVPS site did not exceed the limits identified in the BVPS Operating License, Technical Specifications and/or the ODCM. The BVPS operational REMP program was followed throughout the report period. The results demonstrate the adequacy of radioactive effluent control at BVPS, and that BVPS operation did not adversely affect the surrounding environment. Positive results were attributable to BVPS operation and were consistent with station data of authorized radioactive discharges within limits permitted by the NRC license and the ODCM. Other radioactivity detected was attributable to naturally occurring radionuclides, previous nuclear weapons tests, other man-made sources, and to the normal statistical fluctuation for activities near the LLD. Inter-laboratory Comparison Programs: Split Sample Program: BVPS shared split samples with the Pennsylvania Department of Environmental Protection (P ADEP) in support of their nuclear power plant monitoring program. The shared media and number of locations were typically comprised of milk (2), surface water (2), river sediment (1), fish (1), foodcrops (2), co-located air particulate/air iodine (4), and TLD (24). The split sample program was coordinated by the state, and the results are not provided with this report. Spike Sample Program: Spiked samples were provided by an independent laboratory and then analyzed by the REMP contractor laboratory. The samples were provided throughout the report period and included water samples, milk samples, filter paper samples and charcoal cartridge samples. A total of one hundred six (106) analyses were performed in 2020. One hundred five (105) analyses met the NRC acceptance criteria and one analysis deviated. Special Reports: Since no reporting levels were exceeded during 2020, no Special Reports were required. A Special Report shall be submitted to the NRC when (1) levels of radioactivity in an environmental sampling medium exceeds the limits specified in ODCM procedure 1/2-ODC-3.03, Attachment Q Table 3.12-2, and when (2) the results of the following calculation are

1.0 (for calculations performed when more than one radionuclide is detected in the sampling medium):

Concentration (1) + Concentration (2) +... 2: 1.0 Limit Level (1) Limit Level (2) vii I I I I I I I I I I I I I I I I I I I

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I 1, ,I ll Beayer Valley Power Station 202Q Annual Radiological Environmentl\\l Operating Report EXECUTIVE

SUMMARY

and INDEX Land Use CensJJS Results; Highlights from the most recent Land Use Census are summarized as follows: RTI., A9.690E Enclosme 3

Nearest Residence (Q to 5 mile radius}: The location'has not changed since the previous

-census. Tiu(nearest inhabited residence-is 209 Ferry Hill Road, Shippingport, PA (0.44 miles, east-northeast).

Neare,t Garden >Soo sgft: The location: has not changed since the previous census. The closest *garden location is the Colaber Residence, 1201 Vrrginia Avenue, Midland, PA (1.033 miles, northwest).
Nearest Dairy* Cow (0. to mile radhu); The. location has not chmiged since the previous census. The location remains at Brunton Dairy, 3681 Ridge Road, Aliquippa, PA (6;Q76.miles; southeast). *
Nem;:est*Doe Goat (0 to 5 mile radius): The location has not changed since the previous census. The closest location is the Covert Residence, 930 Pine Street (Route 168),

Hookstown, PA (2.131 miles, southwest). Prevailing Winds; The prevailing wind direction for ground releases was identified by showing the highest deposition parameters (D/Q) in the west (W) sector. The prevailing wind direction* for elevated releases was identified by showing the highest D/Q in the east-southeast (ESE) sector. The REMP properly monitors the environment with air particulate samplitig stations in some sectors and direct radiation 1LDs in all sectors. 2020 Daby Cow & Doe Goat Sampling Locations: The dairy cow sampling locations have not changed in 2020. The locations [Clllain at Brunton Dairy, 3681 Ridge Road, Aliquippa, -PA (6.076 miles, ~utheast): and Wmdsli~imer Dairy, 20 *Wmdsheµner Lane, Burgettstown, PA (10.475 miles, south-southwest): The cioe gofrt sampling location has not changed-since the previous census atid remains at the Covert Residence, 930 Pine ~t (Route 168), Hookstown, PA (2.131 miles, southwest). D/0 for Milch Animal Locations: The 2020 milch animal sampling locations have not experienced a >20% increase in D/Q. Therefore, a Special Report per ODCM, Control 3.12.2 Action "a" and/or Action "b" is not required.

X/0. and D/0 for Offsite" Dose Determination: A change in methodology for Galcufating meteorological dispersion (X/Q) and deposition (D/Q) values resulted in some signµicant differences (>20% change in a non-conservative direction) that will be l

addressed in the next ODCM revision. The change in meteorology has no bearing on viii

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX RTL A9.,690E meeting the requirements of Control 3.122 Action "a" and/or Action "b". Therefore, a Special Report per ODCM is not required.

X/O and D/O. Hiirtgrical Trend Comparison: Th~ is no adverse trend in D/Q when cornpmfug 2p()9 to 2020 data to the "6:bCM. defaµlt D/Q values. However, several locations had, higher X/Q values that were >20% of the ODCM default values.

The Land Use Census resuhs i,ndicate that there were no changes in the _nearest resident, milch cow, garden or doe g~at Therefore, no changes are required to be made in the current Radiological Environmental Monitoring Program (REMP). Deviations, Changes and Adiustments to the Nonu.al Sampling frogram Deviation from Normal Air Particulate & Iodine Sampling and Analysis Schedule: There were seven deviations from the required airborne particulate sampling and analysis schedul~ during the report period. These issues were doc:umented in the following Condition Reports: During the sampling period of 03/23/2020 - 03/30/2020, REMP Air Particulate and Iodine ~ling station located at the Midland North Sub Station (Site No. 32, Sector 15, 0.75 miles NW) was out of service. A Duquesne Light em.ployee was not available on the scheduled change-out date (03/30/2020); therefore, the REMP technician was not permitted on site until 3/31/2020 (08:58), at which time the station was found to be out-of-service. Upon investi~tion, it was d~ed that a fuse was blown in the pump. (Date and time of malfunction was 03/28/2020 at 15:48 as conveyed from the calculated volume.) (CR-2020-03313) Durm.g the sampling period of 04/06/2020 - 04/13/2020, REMP Air Particulate and Iodine sampling station at Brunton's Dairy in Aliquippa (Site No. 27, Sector 7, 6.16 miles SE) was found to be out of service. The cause was a tripped circuit breaker on the front of the totalizer. The circuit breaker was reset and the station was returned to operation on 04/13/2020. The sample station was out of service for approximately 94.07 hours as reported by the REMP technician. (Date and time of mal:fimction was 04/09/2020 at 11 :44.) (CR-2020-03315) _ During the sampling period of 05/17/2020 - 05/23/2020, REMP Air Particulate and Iodine sampling station located in Aliquippa (Sheffield Sub Station, Site No. 51, Sector 5, 8 miles E) was found to be out of service. The cause was determined to be from shattered vanes in the rotary pump. The shattered vanes were replaced and the station was returned to service on 05/18/2020 at 10:43. The sample station was out of service for approximately 100 hours, ix .I I I I ,1 I I I ,1 I I I I ,I I I I

I I I I I I I I I I I I I I I I I I I ~ver Valley Power Station 2"029 ~nual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX-RTLA9.690E as reported by the REMP technician. (Date and time of malfunction was 05/14/2020 at 05 :00 as conveyed from the calculated volume.) (CR-~020-04;581) + During the 'sampling period of 06/07/2020"- 06/13/2020~' REMP' Air Particulate 'and Iodine sampling station at Brmrton's Dairy in Aliquippa (Site No. 27, Sector 7, 6.16 miles SE) was found to* be out of service. The cause was a tripped circuit breaker on the front of the totalizer.,The circujt faeaker was reset and the station was returned to operation on ot?/15/2020. The S!W)Ple station was out of ~ce for apprpximately 134:51 hours as reported by the.REMP technician. (Date and time of ~ctio~ was 0~109a020 at 16:38.) (CR-2020-07822) During the* srunpling period of 08/23/2020 - 08/29/2620, REM!> Air Parti~file *an:a Iodine sampling station at Brunton's Dairy in. Aliquippa (Site l1fo. 27; Sector 7~ 6:16 *~es SE) was found to be out of service. The cause was a tripped circuit breaker on the front of the totalizer. The circuit' breaker was reset and the 'station was :returned to operation on 08/31/2020: The sample station was out of service for apptoximately *85 :48 hours as reported by the REMP technician. (Date and time of malfunction was 08/27/2020 at 18:07.) (CR-2020-06859) During the sampling period of U/8/2020 - 11/14/2020, REMP Air Particulate and Iodine sampling station located in Weirton, WV (Weirton Water Tower, Collier Way, Site No. 48, Sector 10, 16.40 miles SSW) was found to be out of service. The cause was determined to be from shattered vanes in the ro~ pump. The sha~ :vanes were replaced and the station was returned to service on 11/09/2020 at 10:09. The sample station was out of service for appro~ly *21{30 hours, as reported by the REMP ~hnician. (Date and time of rµalfunction was 11/08/2020 at 12:39 as conveyed from the calculated volume.) (CR-2020-08878) Dwing the sampling perioq_ of 11/16/2020 - 11/22/2020, REMP AiJ ];>articulate and Iodine + ) ~ + + + ~ sampling'station at Biuirton's Dairy in Aliquippa (Site No. 27, Sector 7, 6.16 miles SE) was found to. be out of service: The* *cause was deterniliied to be from shattered vanes in the rotary pump. The shattered vanes viere replaced' and the station was returned to service on 1.11!61202~ at 07_:~5. _ _'~e ~~.Pl.~ sta:tj_op_:was_?~_o.f ~r:v!~ ~or_appro~~~-!¥ 22:50 hours, as reported by the REMP technician. (Date and time of malfunction was 11/15/2020 at 08: 15 as conveyed":from tlie ~culated'volume.) (CR-2020-09353) Deviation from Normal Direct Radiation Monitoring; There were no deviations from the required direct radiation monitoring schedule during the report period. Deviation from Normal Surface and Drinking Water Sampling and Analysis Schedule: There were no deviations from the ODCM required water sampling and analysis schedule during the report X

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX RTLA9~690E

Deviation from Normal Milk Sampling & Analysis Schedule: There was one deviation from the required milk sampling_~-analysis schedule occ~ for the reporting period Sl!fficjeQt milk samples were not available from locations within the 5-mile radius in 2020.

The unavailability of milk caused the ~ to not meet the ODCM sampl~ requirements in lt~-ODC-2,03 and in l/2-0DC-3.03, Attachment Q Table 3.12-1 stating that a minimum of four (4) milk l~ons shall be sampled This initiated the ODCM requirement for sampling two (2) additional garden locations based upon the highest predicted annual average D/Q when milk locations are not available.

Deviations from Previous Sampling and Analysis Schedule: There were no deviations ifu~ the *required sampling and analysis schedules during the report period.

The change from 2017 will remain in the report for reference. Beginning in 2017, the REMP was modified to exclude non-required samples and analyses. These changes are documented in the REMP procedure. Two (2) Air Particulate and Radioiodine sampling points; Sherman Farm in Brighton Township (Site No. 28, 8.6 miles N) and Friendship Ridge in Beaver (Site No. 29B 7.97 miles NE). Two (2) Groundwater sampling points; Hookstown Borough (Site No. 14A, 2.61 miles SW) and Georgetown Borough (Site No. 15B, 3.75 miles WNW). One (1) Sediment sample point; Upstream of New Cumberland Dam (Site No. SO, 11.77 miles WSW). Three (3) Precipitation sample points; Cook's Ferry Substation in Shippingpo!t (Site No. 30, 0.5 miles ENE)J East Liverpool Water Department (Site No. 47, 4.88 miles WNW), and Weirton Water Tower (Site No. 48, 16.4 miles SSW). Five (5) Soil sample points; Old Meyer Farm in Hookstown (Site No. 13A, 1.49 miles SW), South of BVPS perimeter (Site No. 22, 0.28 miles SSE), Brunton Farm (Site No. 27, 6.16 miles SE), Nicol Farm in Beaver (Site No. 29A, 8.09 miles NE) and East Liverpool Water Department (Site No. 47, 4.88 miles WNW). The analysis schedule of 1-131 for both drinking and surface was changed from weekly to biweekly. xi I I I I I I I I I I I I I I I I II I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report EXECUTIVE

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and INDEX EXECUTIVE

SUMMARY

RTLA9.690E Report Preparation and Submittal Requirements................................................................ ii Report Overview................................................................................................................ iii Description of Pre-operational REMP (1974-1975)........................................................ iii Description of Operational REMP (1976 - Present)......................................................... iii Determination of Environmental Impact............................................................................ IV Inter-laboratory Comparison Program.s................ :............................................................. vii Special Reports................................................................................................................... Vil Land Use Census Results............................................................... :.:.................................. viii Deviations, Changes and. Adjustments to the Normal Sampling Program........................ ix SECTIONl-INTRODUCTION A. Radiation Fundamentals.............................................................................................. 1-1 B. Radiation and Radioactivity....................................................................................... 1-1 C. Units of Measurement................................................................................................ 1-5 D. Lower Limit of Detection........................................................................................... 1-6 E. Scope and Objectives of the REMP Program............................................................. 1-6 F. Description of the Beaver Valley Site........................................................................ 1-6 SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM A. Radiological Environmental Monitoring Program.................................................... 2-1

1.

Program. Description..................................... :.................................................... 2-1

2.

Summary of Results........................................................................................... 2-5

3.

Quality Coµtrol Program.................................................................................... 2-5

4.

Program Changes............................................................................................... 2-5 B. Air Monijoring............................................ -............................................................... 2-23

1.

Characterization of Air and Meteorology.......................................................... 2-23

2.

Air Sampling Program and Analytical Techniques........................................... 2-23

3.

Results and Conclusions.................................................................................... 2-24 C. Environmental Radiation Monitoring........................................................................ 2-29

1.

Description ~hlegional Background Radiation and Sources............................ 2-29

2. L~ons an9 Anajytical Proced_ures.................................................................

2-29

3.

Results and Conclusions............................................................. :...................... 2-30 D. Monitoring of Surface Water, Drinking Water, Groundwater and Precipitation...... 2-34

1.

Description of Water Sources............................................................................ 2-34

2.

Sampling and Analytical Techniques................................................................. 2-34

3.

Results and Conclusions.................................................................................... 2-37 E. Monitoring of Shoreline Stream Sediment and Soil.................................................. 2-42

1.

Characterization of Shoreline Stream Sediment and Soil.................................. 2-42

2.

Sampling Program and Analytical Techniques.................................................. 2-42

3.

Results and Conclusions.................................................................................... 2-43 F. Monitoring of Local Cow and Goat Milk.................................................................. 2-48

1.

Description - Milch Animal Locations.............................................................. 2-48

2.

Sampling Program and Analytical Techniques.................................................. 2-48

3.

Results and Conclusions.................................................................................... 2-50 xii

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report RTLA9.690E EXECUTIVE

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and INDEX G. Monitoring of Fish..................................................................................................... 2-54

1.

Description......................................................................................................... 2-54

2.

Sampling Program and Analytical Techniques.................................................. 2-54

3.

R.esults and Conclusions.................................................................................... 2-54 H. Monitoring ofFeedstuff and Foodcrops.................................................................... 2-57

1.

Characterization of Farm Products..................................................................... 2-57

2.

Sampling Program and Analytical Techniques.................................................. 2-58

3.

Results and Conclusions.................................................................................... 2-59 I. Estin:uii:es of Radiation Dose to Man......................................................................... 2-62

1.

Pathways to Man - Calculational Models.......................................................... 2-62

2.

Resuits of Calculated Dose to Man - Liquid Effluent Releases........................ 2-62

3.

Results of Calculated Dose to Man - Gaseous Effluent Releases..................... 2-63

4.

Conclusions........................................................................................................ 2-63 SECTION 3 - LAND USE CENSUS A. Land Use Census Overview...................................................................................... 3-1 B. Nearest Residence...................................................................................................... 3-1 C. Nearest Garden >500 sqft......................................................................................... 3-1 D. Nearest Dairy Cow.................................................................................................... 3-1 E. Nearest Doe Goat....................................................................................................... 3-1 F. Prevailing Winds....................................................................................................... 3-2 G. 2020 Dairy Cow & Doe Goat Sampling Locations................................................... 3-2 H. D/Q for Milch Animal ~tions.............................................................................. 3-2 I. X/Q and D/Q for Offsite Dose Determination........................................................... 3-2 J. X/Q and D/Q Comparisons........................................................................................ 3-2 SECTION 4-SPLIT SAMPLE PROGRAM AND SPIKE SAMPLE INTER-LABORATORY CO:MPARISON PROGRAM A. Split Sample Program (Inter-Laboratory Comparison, Part 1 of2).......................... 4-1 B. Spike Sample Program (Inter-Laboratory Comparison, Part 2 of2)......................... 4-1 C. Conclusions............................................................................................................... 4-4 SECTION 5-CORRECTIONS TO PREVIOUS RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT(S) A. Corrections to Previous Radiological Environmental Operating Report(s).............. 5-1 xiii I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station R1LA9.690E 2020 Annual Radiological Environmental Operating Report EXECUTIVE

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and INDEX AREQRTABLES Table 2-1 Operational Radiological En~ental.~onh9ring Program............................... 2-2 I ~ ... ~ ; ~~ \\ L.;,. 1 4 I. ~* Table 2-2 Radiological Environmental Monitoring Program Summary.................................. 2-6 Table 2-3 Pre-{)perationa1*Environmental Radioiogfoal Monitoring Program S,ummary.'...... 2~20 Table 2-4 ~ Cow and Goat. Locatio:QS................. _. *.**............ _...... _.................... 2-49 Table 2-5 Calculated Po~ to ~- Liquid Effluent Rel~.............................. _................. 2-64 Table 2-6 Table 2-7 Table 3-1 Table 3-2 Table 4-1 Table 4-2 Table 4-3 Table 4-4 Calculated Dose to Man - Gaseous Eftluent Releases............................................ 2-64

1.

Natural and Medical Radiation ~sures............................................................... 2-65 I ~ . ~on ofNear~st-Residences, Gardens, Dairy Cows, Doe Goats................. :..... 3-3 Co:Q1parison of Annual D/Q tQ ODCM Default.D/Q............................................... 3-4 Inter-Laboratory Comparison Program, Spiked Samples - 1st Quarter.................... 4-5 Inter-Laboratory Comparison Program, Spiked Samples - 2nd Quarter................... 4-6 Inter-Laboratory Comparison Program, Spiked Samples - 3rd Qtiaiter................... 4-7 Inter-Laboratory Comparison Program, Spiked Samples - 4th Quarter................... 4-8 xiv

Beaver Valley Power Station RTLA9.690E 2020 Annual Radiological Environmental Operating Report EXECUTIVE

SUMMARY

and INDEX Figure i-1 Figure 1-1 Figure 2-1 Figure 2-2 Figure 2-3 Figure 2-4 Figure 2-5 Figure 2-6 Figure 2-7 Figure 2-8 Figure 2-9 AREOB-FIGURES Graph of Individual Dose from BVPS Effluents and Natura.I Background Dose..... vi Geographical Map and Prin(?ipal Communities in 50-mile Radius of the Beaver Valley Powei-Station.................. :........ :..................................................................... 1-8 Environmental Monitoring Locations -Air Sampling Stations................................. 2-27 Graph of Annual Average Concentration: Gross Beta in Air Particulates................ 2-28 Environmental Monitoring Locations - 'fLDs.......................................................... 2-31 Graph of Annual Average Exposme: Direct Radiation in Environment................... 2-33 Environmental Monitoring Locations-Surface*Water and Drinking Water............ 2-39 Graph of Annual Average Concentration: Iodine-131 in Surface Water, and Drinking Water........................ :..............................................,,................................. 2-40 GraJ?h of Annual Average Concentpltion: Tritium in Swface Water....................... 2-40 Graph of Annual Average Concentration: Tritium in Drinking Water..................... 2-41 Graph of Annual Average Concentration: Tritium in Groundwater......................... 2-41 Figure 2-10 Environmental Monitoring Locations - Shoreline Sediments and Soil..................... 2-45 Figure 2-11 Graph of Annual Average Concentration: Cesium-137, Cobalt-58 & 60 in Sediment.................................................................................................................... 2-46 Figure 2-12 Graph of Annual Average Concentration: Cesium-137 in Soil................................. 2-47 Figure 2-13 Environmental Monitoring Locations - Mille........................................................... 2-52 Figure 2-14 Graph of Annual Average Concentration: lodine-131 & Sr-90 in Milk................... 2-53 Figure 2-15 Environmental Monitoring Locations - Fish............................................................. 2-5 5 Figure 2-16 Graph of Annual Average Concentration: Cesium-137 in Fish................................ 2-56 Figure 2-17 Environmental Monitoring Locations - Feedstuff and Food.crops............................ 2-60 Figure 2-18 Graph of Annual Average Concentration: Cesiwn-13 7 in F eedstu:ff and Food.crops.................................................................................................................. 2-61 xv I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2_020 Annual Radiological Environmental Operating Report SECTION 1 - INTRODUCTION A. Radiation Fundamentals R1LA9.690E Radiation is the conveyance of energy through spa.ce. For example, heat emanating from a ~ve is a f ~ of radiation, as are light rays, micro~ves, and ~o wa~es: Ali matter ~ r consists bf atoms, which are comprised_ of positjvt:lY charged particles (protons), negatively c~ed particles_ (electrons), and non-cbargedlneutraf paiticies (t;t~utrons). Tbe ~latively large particles (protons and n~utrons),are packed tjghtly tcigeth~ in a cluster at the center of 'the atom callecf the nucleus, while the smaUer partides (electrons) orbit around ~e nucleus. In an electrically neutral atom, the negative charges of the electrons *are balanced by the positjv~ 9~~s_ ~f ~e protons,. Due to their dissin:µlar charge~, the ~jo°:8~.'1:'~ electrons ha".@ a strong~attraption for each.other. This holds th,e,~ together. Qther ~tjve forces between the protons and neutrons keep the densely packed protop.s from repelling eac,h other and prevent the nucleus from breaking apart. B. Radiation and Radioactivity The following provides an alphabetical glossary of terms associated with radiation, radioactivity, and the*radioactive decay process. The terms discussecf include alpha particles, beta particles, gamma rays, genetic effects, half-life, ioniz.ation, isotopes, neutrons, radiation, radioactive decay, radionuclides and somatic effects. Alpha Particles: Particulate and electromagnetic radiation each travel through matter differently because of their different properties. Alpha particles contain 2 protons and 2 neutrons, are relatively large, and carry an electricaf charge of +2. Alpha particles are ejected from the nucleus of a radioactive 'atom at speeds ranging from 2,000 to 20,000 miles per second. However; due to its comparatively large ~. ai:i alpha particle usually does not travel very far before it loses most of its energy through collisions and interactions with other atoms. As a result, a sheet of paper or a few centimeters of air can easily stop alpha particles. Beta Particles; Beta particles are very small, and comparativ~ly fast particles, traveling at speeds near the speed of light (186,000 miles per second). Beta particles have an electrical charge of either + 1 or -1. Because they are so smalf and have* a low charge, they do not collide and interact as often as alpha particles, so they can travel farther. Beta particles can usually travel through several meters in air but may be stopped by a thin piece of metal or wood. 1-1

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 1 - INTRODUCTION RTL A9.(?90E Gamma Rap: Gamma rays are pure energy and travel at the speed of light. They have no measurable charge or mass and generally travel much farther than alpha or beta particles before being absorbed. After repeated interactions, the gamma ray loses its energy and v~shes. The ran~e of a gamma ray in air v8!ies, depending on the ray's energy and interactions. Very high-energy~ radiation can travel a considerable distance, where as low energy gamma radiation may travel only a few feet in air. Lead is used as shielding material for gatnma radiation because of its density. Several inches of lead or concrete may be needed to effectively shield gamma rays. Genetic Effects: The effects of ionizing radiation which are observed in the offspring of the exposed individual that could occur as a result of ionizing radiation interacting with the genes in the human cells. Half-life: The length of time an atom remains radioactive is defined in terms of half-life, which is the amount of time required for a radioactive substance to lose half of its activity through the process of radioactive decay. Radionuclides that have infrequent emissions have a long half-life, where as, radionuclides that have more :frequent emissions have a short half. life. Ionhation: Through interactions with atoms, alpha, beta, and gamma radiation lose their energy. When these forms of radiation interact with any form of material, the energy they impart may cause atoms in that material to become ions or charged particles. Normally, an ato11:1 has the same n:umber of protons as electrons, thus, the number of positive and negative charges cancel, in which the atom is electrically neutral. When one or more electrons are remo,ved, an ion is formed. Ionization is one of the processes that may result in damage to biological systems. Isotopes: A group of identical atoms containing the same number of protons make up an element In fact, the number of protons an atom contains determines its chei;nical identity. For instance, all atoms with one proton are hydrogen atoms, and all atoms with eight protons are oxygen ~toms. However, the number of neutrons in the nucleus of an element may vary. Atoms with the same number of protons but different numbers of neutrons are called isotopes. Different isotopes of the same element have the same chemical properties, and many are stable or non-radioactive. An unstable or radioactive isotope of an element is called a radioisotope, a radioactive atom, or a radionuclide. Radionuclides usually contain an excess amount of energy in the nucleus. The excess energy is usually due to a surplus or deficit in the number of neutrons in the nucleus. Radionuclides such as uranium-238, beryllium-7 and potassium-40 occur naturally. Others are man-made, such as iodine-131, cesium-137, and cobalt-60. 1-2 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 1 - INTRODUCTION RTI, A9.690E Enclosme 3 Neutronsi Neutrons come from several sources, including the interactions of cosmic radiation with the earth's atmosphere* and nu.clear reactions within operating nu.clear power reactors. However, neutrons are not of environmental concern since the neutron source at nuclear power stations is* sealed within the containment building. * ~use neutrons have no charge, they are-able to pass very cl~ to the"nuclei of the material through which they are traveling. As a result;- neutrons may 'be captured by one of these riuclef or they may be deflected. When deflecte4 the neutron Ioks some of its energy. After a series of these deflections, the neutron has lost most-of its energy. At this point; the neutron moves about as slow as the atoms ?f-the inaterial-through which it is traveling and is called a thermal neutron.

In comparison, fast neutrons are much more energetic than thermal neutrons and have greater potential for causing damagefo the material through'which they travel. Fast neutrons can have from 200 thousand to 200 million tinies the energy of thermal neutrons.

Neutron shielding is designed to slow fast neutrons and absorb thermal neutrons. Neutron shielding materials commonly used to slow netitions down are water or polyethylene. The shield is then completed with a material such as cadmru.m, to

absorb ilie now thermal neutrons. Concrete is also used to form an effective neutron shield because it contains water molecules and can be easily molded around odd shapes.

Radiation: This is the conveyance of energy through space. For instance, heat emanating from a stove is a form of radiation, as are light rays, microwaves, and radio waves. Ionizing radiation is another type of radiation and has similar properties to those of the examples listed above. Ionizing radiation consists of both electromagnetic radiation and particulate radiation. El~magnetic radiation is energy with no measurable mass that travels with a wave-like mo~on through space. Included in this category* are gamma rays and x-rays. Particulate radiation consists of tiny, fast moving pa_rticles which, if unhindered, travel in a straight line through space. The three types of particulate radiation of concern to us are alpha particles, 'Which are made up of2 protons and 2 neutrons; beta particles, which are essentially free electrons; and neutrons. The properties of these types of radiation will be described more fully in the Range and Shielding section. 1-3

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTIONl-lNTRODUCTION R1LA9.690E Radjoactj:ve Pe£ay: ~oactive atoms, over time, will Iyaeh a stable, non-radiofl:ciive state thro~ ~ pJ,"q_~ kno~ ~ '1ioEWf:ivs: decay, which is the release of ep.ergy fr9m an atom through the emission of ion)zing radiatio;n. Rrufa;>active atoms may decay directly to a stable ~ or may go through a series of decay stages, called a radioactive decay series, and produce several daughter products that evenlw!llY result in a stable atom. The loss of energy through radioactive 4ecay nµty transform the atom into a ~hemically different clement For example, when uranium-238 decays, it emits an alpha particle and, as a result, the ~om loses 2 protons ~d 2 neutrons. Since the number of protons in the nucleus of an atom. determines~ ch~cal identity, then when the uranium.~238 atom loses the 2 protons and 2 ne,utrons, it is transformed into lµ]. atom oftho.rium-234. Thorium-234 is one of the 14 successive daughter ~~ of uranium-238. Radon is another daughter pro_duct, and the depay series ends with stable lead-206. The following example is part of a known radioactive decay series, called the uranium series, which begins with uranium-238 and ends with lead-206. The information provided in the upper portion of each block is the isotope name, while the information provided in the lower portion of each block is the half-life. 238IJ 'u 4.6E+9Yr 2.5E+5Yr l 'Pa l 1.2mri

234n, 230-Jn 24d 8.0E+4Yr l

~ 1600Yr l 222ffn 3.82d l 218Po 3.05 rrin l 21-fal 19.7mm 'Pb 26.8nm R!,dionuclides: See description for "isotopes". 1-4 214Po 1.6E--4 8 l 21°F>t> 23Yr ~ ~ 21°Bt 5.01 d 210po 138Ad l

208pt, stable I

I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beayer Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 1 - INTRODUCTION RTLA9.690E Somatic Effects: The effects of ionizing radiation develop in th~ clirectly exposed individual, including an unborn child. Somatic effects can be divided further into acute and chronic eff~. Acute effects d~elQp shortly after exposure to large amount of radiation. Chronic effects ~a~ of expo~~ ~ati,on over an_extended period !)f tiJAe. C. Units.of M~urement Actiyity (Curle): This relates the number of atoms in a s~ple that disinte~te (decay) per ~-of time.. -Eachti~e.. an atom disintegajes, radiatiop. is~ The curj.e (Ci) is the unit used to describe the activity of a material and indicates the rate at which. the atoms of a radioactive substance are decaying. One curie indicates the disintegration of37 billion atoms per second. A curie is a unit of activity, not a quantify o( material°' Thus, the amount of material required to produce one curie varies. A smaller unit of the curie is used when di.s;Cussing the low CQncentrations-of radioactivity~ in envµ-onmental samples. For ~ce, the.pi~urie (pCi) represents OD(? tpllionth of a curie. Absorbed Dose (rad}: This is a term used to describe the radiation energy absorbed by any D)atepal exposed to ionizing radiation and can be U&ed for both particulate and electromagnetic radiation. The rad is the unit used to measure the absorbed dose. It is defined as the energy of ionizing radiation deposited per gram of absorbing material (I rad = 100 erg/g). The rate of absorbed dose is usually given in rad/hr. The rad is not used to quantify biological damage caused by ionizing radiation. Dose Eq!9!alept_(ry_m): Biological damage due to alpha, beta, gamma ancJ nel.$:On radiation may r:esult from ionipng-radiation, Some-types of radiation; especially alpha particles, cause d~ local ioni?,ation and can result in up to 20-times_ the amo~t of.biological damage for the ~e energy im~ as <Jo gamma or x-rays. Ther_efore, a quality.fa9tor must be

applit:d to* accoup.t -for-.,,the-different,i<;>nizing-: CM)abilities of. Nar:ious types of -ionizing radiation. When the quality f~r is multiplied by the al:>sorbed close (rad) the result is the dose equivalent. Dose equivalent is an estimate of the possible biological damage resulting from exposure to a particular type of ionizing radiation and is measured in rem. An example of this conversion from absorbed dose (rad) to dose ~valent (rem) uses the quality factor for alpha radiation, which is equal to 20. Thus, 1 rad of ~lpha radiation is equal to 20 rem.

Since beta and g~ radiation each have a quality fac:tor of 1, then 1 rad of either beta or gamma radiation is equal to 1 rem. Neutrons have a quality factor ranging from 2 to 10. In terms of radiation, the rem is a relatively large unit Therefore, a smaller unit known as the millirem, is often used and one millirem (mrem) is equal to 1/1000 of a rem. 1-5

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 1 - INTRODUCTION D. Lower Limit of Detection RTLA9.690E The Lower Limit of Detection (LLD) for environmental samples is a calculated value that represents an a-priori (before-the-fact) limit for the smallest concentration (i.e.; pCi per unit mass or volwne) of radioactive material in a sample that will be detected with 95% probability, and with 5% probability of falsely concluding that a blank observation represents a real signal. A calculated LLD must consider analytical variables such as standard deviation of the background counting rate, counting efficiency, sample size, :fractional radiochemical yield, radioactive decay constant, and elapsed time between sample collection and time of counting. E. Scope and Objectives ofREMP The environmental program consists of environmental monitoring for radioactivity in the vicinity ofBVPS. Environmental sampling and analyses include air, water, milk, vegetation, river sediments, fish, and ambient radiation levels in areas surrounding the site. The results of these media are assessed to determine impacts of the plant operation on the environment. The ARBOR for BVPS summarizes REMP conducted by the licensee during the report period. F. Description of the Beaver Valley Site BVPS is located on the south bank of the Ohio River in the Borough of Shippingport, Beaver County, Pennsylvania, on a 453 acre tract of land The-site is approximately one mile from Midland, Pennsylvania, five miles from East Liverpool, Ohio, and twenty-five miles from Pittsburgh, Pennsylvania. Figure 1-1 shows the site location in relation to the principal population centers. Population density in the immediate vicinity of the site is relatively low. The population within a five mile radius of the plant is approximately 15,000. The only area within the radius of concentrated population is the Borough of Midland, Pennsylvania, with a population of approximately 2,435 as determined from the 2020 U.S. Census. The site lies in a valley along the Ohio River. It extends from the river (elevation 665 feet above sea level) to a ridge along the border south of the Beaver Valley Power Station at a maximum elevation of 1160 feet. Plant grade level is approximately 735 feet above sea level. BVPS is on the Ohio River at river mile 34.8, a location on the New Cumberland Pool that is 3.1 river miles downstream from Montgomery Lock and Dam, and 19.6 miles upstream from 1-6 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Statton 2020 Annual Radiological Environmental Operating Report SECTION I-INTRODUCTION R1LA9.690E New Cumberland Lock and Dam. The Pennsylvania-Ohio-West Virginia border is located 5.2 river miles downstream from the site. The river flow is regulated by a series of dams and reservoirs on the Beaver, Allegheny, Monongahela and Ohio Rivers and their tributaries. During the report period, the Ohio River flow (as obtained from the Corps of Engineers - Water Resources Engineering) at the New Cumberland Dam ranged from 2,485 cubic feet per sec.ond (minimum monthly average) to 172,228 cubic feet per second (maximum monthly average). The mean flow during the report period was approximately 44,779 cubic feet per second. Water temperature of the Ohio River typically varies from 32.0° Fahrenheit to 81.1 ° Fahrenheit. The minimum temperatures occur in January and/or February and maximum temperatures in July and/or August Water quality in the Ohio River at the site location is affected primarily by the water quality of the Allegheny, Monongahela and Beaver rivers. The climate of the area may be classified as humid continental. The predominant wind direction is typically from the southwest in summer and from the west in winter. The National Climatic Data Center indicates the following data for the Beaver Falls, PA area: The total annual precipitation during the report period was 44.2 inches. The average mean temperature during the report period was 51.8° Fahrenheit. The basic features of the Beaver Valley Power Station Units 1 and 2 are tabulated below: Beaver Valley Unit 1 Beaver Valley Unit 2 Licensed Power Level 2900 - megawatts thermal 2900 - megawatts thermal Type of Power PWR No. of Reactor Coolant Loops 3 No. of Steam Generators & Type 3 - Vertical Steam Used by Main Turbine Saturated PWR 3 3 - Vertical Saturated The BVPS units utilize two separate systems (primary and secondary) for transferring heat from the source (the reactor) to the receiving component (turbine-generator). Because the two systems are isolated from each other, primary and secondary waters do not mix, and radioactivity in the primary system water is normally isolated from the secondary system. Reactor coolant in the primary system is pumped through the reactor core and steam generators by means of reactor coolant pumps. Heat is transferred from the primary system to the secondary system in the steam generators. The steam is then formed and delivered to the main unit turbine, which drives the electrical generator. The steam is condensed after passing through the turbine and returned to the steam generators to begin another steam/water cycle. 1-7

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 1 - INTRODUCTION Figure 1-1 Geographical Map and Principal Communities in SO-mile Radius of the Beaver Valley Power Station on ~ l-( leltlal tferffllUgt ..._

fi,MCllr G)...,....

~

Bulla,

... f... RTLA9.690E a-. Cw 11,a """I I ** Q Mktlln@ Piltsburgh Malnle,, @ ~ Scio (i) ~ q Cedl qt 1 - 8

I I I I I I I I I I I I I I I I I I I Beaver Va:iDey Power Station 2020 Annual Radiological Environmental Ope~µng Report SECTION 2-ENVIRO~AL ~ONITORING PROGRAM A. Radiological Environmental Monitoring Program

1. Program Description RTLA9.690E The prograpi consists of monitoring water, air, soil, river bottoms (sediment), feedstuff, vegetation, foodcrops, cow's milk, ambient ~ation* levels in areas surro~ding the site, and ~c life as summarized in Table 2-: 1 '. Further description of *each P9rtion of the program (&mpling Methods, Sample Analysis, Discussion and Results) are included in Sections 2-B through 2-I of this report.

2-B - ~ Monitoring 2-C - Environmental Radiation Monitoring 2-D - Monitoring of Surface Wa~r, Drinking Water, Groundwater and Precipitation 2-E - Monitoring of Shoreline Stream Sediment and Soil 2-F - Monitoring of Local Cow and Goat Milk 2-G - Monitoring of Fish 2-H - Monitoring of Feed.stuff and Foodcrops 2-I - &timates of Radiation Dose to Man 2-1

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2-ENVIRONMENTAL MONITORING PROGRAM Tablel-1 RTLA9.690E ()pentional Radiolo2ical Environmental Monttorlru! clVXfllm 8ample Smnple Sample 8llllple hcl6oll Type Sb Sempiel.ocatlon ~ ~I Analyala . No. ~ 1 Ak 13 HoolmtoM'I, PA (Old M&yei-Farm) Contlnuoul ~-"6 Grola Beta CIII XI ADcjulppa,'PA~ Farm)- Partlculme & Sanipllng ~ Radlonucllde 311 ~,gport, !'A~ Forry~) wltl Sample lodln&-131 32 Mklana,'PA (Nedi Subltatlon) Coleclonllt WNldo/-Charcoal -48.1 lng,l!!lby, PA~ 8fl(vice

Rt. 88) leatWNkly GammlSoan eat LIYerpool, OH (Witel' t1epar1meri13 Qunily Compolb 48M WllirtDn, WI/ (Wlmr TCJWaf-Collar way) 61 A11mmna PA (Shal'llekl Sublmllon) 7-8 BVPS 81111 Pemieter locallona 2

Dnct 10 ~~ PA (Poet Olllce) Contiluoua Quaaly'I GammaDoee Rlldlllllon 13 Ho0blow>>, PA (ad Meyer Farm} (TLD) 14 1-tookRown, PA 16 Georgetcwn, PA,Cf'.09$ O(l!c?I} Tl ~ PA (Brunton Farm) 28 8henNln Farm 298 Beaver, PA (Frlllndahlp Ridge) 30 SllqijM,opo,1, PA (Cook's Ferry Sublta!lon) 32 MIiiand, PA (North Subetdon) 33-44 BVPS Sh P..irn.lllr Loc:allona 46 Raccoon Townahlp, PA (Clnllan HOUN Bapllt Chapel - Rt 18) -46.1 R.lcooc:,1-T~ *. ~ ~ eom.r, 48 lndLNtry, PA (MkMay Drlw) 48.1 lndlmry, PA {l,fcKIMll'a 8erY1ce - Rt. 88) East l.iY9rpool, OH {WUllr Qepartmel IQ 48M 'Nllrlon, WJ (Water,TOMir~ColllllrWay) 61 AllqwppR, PA(Shefflald Sublt!lllon) ~2-66 BVPS 81111 Penmetar Locations 59 238 Green Hm Road, Alqulppa, PA 60 <<4 1-111 Road, Geot gilWMl, PA 70 236 Engle Road, lndultry, PA 71 ~ TCJW98Np, PA (Fnt We8le!n Bank) n ~. PA-(Lu!henln ctuch-- Rear) 73 818 Squirrel Roo Road, lndultry, PA 74 37 Popllr Avenua, MoMQa. PA (CCBC) 75 117 Holt Road, Alqulppe, PA 78 Raccoon Townlhlp, PA (Elementary School) n 3814 Green Garden Road, Alqulppa. PA 78 Raccoon T~p. PA (Munlclpel Bulmng) 79 108 Rl 161, Allq,.appe, PA 80 Raco0011 Ta.mahlp, PA (Pllk Office-Rt. 18) 81 Mlla'llek Unlled PrNbo/mf111n, Church Hooknlwn, PA 82 2697 Rt 18, Raccoon Twp, PA 83 7U MIi CrNk Reed, HookA,wn, PA 84 Hancock County, VW (Senior Cenllll) 86 2048 Rl 30, Weat ChMlltr, WI/ !le 10VO Ohio Avenua, Eaet LMrpool, OH 87 60103 Clllculla Smth Ferry Road, Calcutla, OH 88A Route 188, Mkland Halghtll, PA 89 488 Smith Farry Road, Ohioville, PA 90 8286 TU9C81'8WTa Road, Midland, PA 81 Pine Grow Road & Doyl8 Road, Industry, PA g:z Georgetown, PA (GeorgA7.m Road Subataflon) 93 104 l.mden, Mldland, PA (Sunrlae I-Ila) 94 Hookstown, PA (McCleery & Pola cat Holow Roada) 96 832 MoClNry Road, Hookslown, PA) 111-112 BVPS 8!1111 Perimeter l.ooatlona 2-2 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Enviro~ental Operating ~eport SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Table 2-1 (Continued) RTLA9.690E Ooeratlonal Radfoa.-..n.-1 Environmental Monitorin: :;_-.-~-a.Ill I Sample Sample Sample Pnperatlon / 8eGtlon Type.. Sample Locaflon Semple FraqllMO)' Analyalefrequency Analyala No. lnduetry, PA (Upneam of Momgom81y BlwNkly~ lodlne-131 49A WeeklyQra.b 3 SuTface Ill Dem) Samplel'II MontMy Compolb of GammaScan Wmer Weekly58111)1efol 6 §Ml lJwTpool. OH CM&'- Ody' Grab Sample Qllllrlifly~"' Trtlbn (H-3) CollecledWNldytlol \\ 4 Grcmdwaler No umping perfonntd 4 Mldlanil. PA (Waler DepartrnerrQ ~~of lodile-131 DdvlMll)le - Dmklng 1n111i 111ltle11t M 6 Sample Coleded MonfNy Composllll Id) GammaScan Waler 5 Eat UY9rpool, OH (WIABr WNldy Deplll biiel d) Quarterly Compoelte "" Trflun (1-1-3) Shorellllll 2A BVP8 Outrall Vlclnlly 8 Sec:lment 49AO!I Industry, PA (Upclramof llcNltgomel'f .Semi-Annual Seml-Annu8I Gamma Scan Dam) ZT ~ PA (Bru_i:iton Fann) BlwMldy,, 'MIIIO Al other aamplel & Gamma Scan rinalsllll'Bon analyNeare&weeldy lod~131 7 Ulk ee1a1 Bl.lgettabm, PA ('Mndaheimer Fann) i-fire; ITIOllthly at dWWlll grazing but Strontlum-88 olherilrnee MorJ1tdYdumgolher Stron1lum-90 114 (II) Hookslcwn, PA {Col/art Reeldence) ~ 2A BVPS Outfal Vlanlty COITlp08l!eofedlble GammaSoan 8 FISh 49AC-, Industry, PA (l./pl1ream of Mol1lgotTMy Semt-Annual partabyapeciealll on edible Dlllll) pmu 10"tl* ~-PA 16"1"" Georgewn,P~ 12 lt<-1 Racoon Township, PA GanvnaSclln Annualatliawatt Compoalle of each lodlne-131 on 9 Food Crape BYalable samplespeclea gree111Nfy 48..,.., lndllltry,PA wgetablee ~ 'Neirlon,WI

lie-I i=-iltuff&

10 SUmmer ZT Alkpppll, PA {Bnmton F81T11) MonWy MomtdY GammaScan FOlllll& 308 Shippingport. PA {Cook's Ferry Sub8tallon) 32A Mkland, PA {North Subltatlon) Ewry Five (5) 12 Coiw Samples 3" 11 Soll 48.1 Industry, PA

yNl'9*

0eep er dlllmeter at GammaScan Wett>n WI/ C-NatJ,rTower-Collier (2(!20, 2025, 2030) each ~ approx. 48C-, Wey) 10' radius) 61A ~. PA (Sheflleld Submfion) 12 Precipitation No smnpllng performed 2-3

Beaver Valley Power Station RTLA9.690E &.closure 3 2020 Annual Radiological Environmental operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Table 2-1 (Continued) Operational Radiological*Environmental Monitoring Program Notes for Table 2-1 (a) (b) (c) (d) (e) (f) (g) (h) (I) (k) (m) Control sample station: These Locations which are presumed to be outside the Influence of plaot effluents. Particulate Samples are not counted within 24 hours after filter change. Perfonn gamma ~l9* ariaJY..sis on each sample when gross beta it greater than 1 O times the yearly mean of control samples. Long-timn composite samples are obtained from shori-tenn composite samples at the specified locations. Composite samples are colected at Intervals not exceeding 2 hours. Searight Dairy Is no longer operational. MHk samples are collected biweekly when animals are grazing. The mHk samples are collected monthly at otner tif:nes. The fish samples contain whatever species are avaHable. IF adequate ~ size ~.ava!lable, THEN the sample is separated according to species, and compositing will provide one sam~ of each species. IF ~uate sample size is not ~ilable, THEN separation by species Is no_t practlcal. Therefore, edible parts of all fish In the sample are mixed to provide one sample. Cory,poslte samples are ~nee! l;>y collectlng an allguot at Intervals not exceeding 2 hours at location 2.1. In December of 2016; location 2.1 was closed. The water treatment plant operator at location 5 obtains the weekly grab sample from the dally composite grab samples. In December of 2016, location 5 was transitioned to a composite sample to replace location 2.1. For location 49A, the weekly grab sample is obtained by a field technician. Two (2) TLDs are collected quarterly from each monitoring location. ODCM procedure 1/'2-0DC-3.03, Attachment Q, Table 3.12-1 requires three (3) dairies to be selected on basis of highest potential thyroid dose using milch census data. See Section 2-E of this report (Monitoring of Local Cow's MIik) for specific locations sampled. Three (3) garden locations required by 1/2-0DC-2.03, Attachment A Table 3.0-1; Sites designated by 1/2-0DC-2.03 Attacnment B Figure 3.0-5. Sampling locations may be altered by the REMP Administrator at any time based on availability. When there are not enougt1 ml,lk sample locations available to meet the ODCM requirements, three (3) different types of broad leaf vegetation are to be sampled at eacfl of two (2) Indicator locations oased on the highest predicted annual average ground D/Q (as determined from the previous year's Land Use Census results), in addition to those samples described in Note (I). Three (3) different types of broad leaf vegetation shaU also be sampled at one ( 1) control location when in this condition. 2-4 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM

2. Summary of Results RTLA9.690E All results of this monitoring program are summarized in T~le 2-2. 1Jiis table is prepared in the format specified by the NRC via-the-Branch Technical Posi~on in NUREG-1301, and in accordance with Beaver Valley Power Station ODCM. Summaries of results of analysis of each media are discussed in Sections 2-B through 2-H and an assessment of radiation doses are given in Section 2-1. Table 2-3 summarizes BVPS pre-operational ranges for the *various sampling media during the years 1974 and -1975.

Comparisons of pre-o~onal data *with tiperational dahi-indicate the ~ges of values are g~y in good agieement for both period$ of time. Activity detected was attributed to naturally occurring radionuclides, BVPS effluents, previous nuclear weapons tests and/or to the normal statistical fluctuation for activities near the LLD. The conclusion from all program data is that the operation of BVPS has resuhed in no significant changes to the environment.

3. Quality Control Program The Quality Control Program implemented by BVPS to assure reliable performance by the contractor and the supporting QC data are presented and discussed in Section 4 of this report.

4. Program Changes There were no significant changes to the sampling program during the report period.

The 2017 changes will remain in the report for reference. In January 2017, REMP sampling changes were made to remove non-ODCM samples, and they are as follows; two air particulate and radioiodine locations, two groundwater locations, one sediment location, three precipitation locations, and five soil locations. Additionally, the frequency of drinking water analysis was changed to biweekly, surface water analysis #49A was changed to biweekly, and soil sample collection was changed to quinquennial. 2-5

Beaver Valley Power Statioa 2020 Ai1aa1 Radiolopcal Envlrollmental Operathl& Report SECTION 2 - ENVIRONMENTAL MONITORING PR.OGRAM Tablel-2 RADIQWGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

Nole otPadlty: Bm:n: YIDP! fom: tNi9P Unit 1 and Unit l Dod1et No.: !Q-331 f.$:412 Locadan of Fadltty: Berna: Copty, Pc;uutrapla ~Pmiod:CalmurYeu--28lO Mediaa: Air Pmticuliia, BDd Radioiodine Unit~ l't!tm-i cz.:at: (picoCuries / cublc mew) 0011 -0.051 aadlllndloa No 41 Weidon Wata-Tow.- Colller Wa, Wanan, WV 16.4 nnloo SSW 1-131 < 0 04 UD( 0/364) UD ( 0 /36-4 No 43 Wlinoii Wlllr Tow.- UD ( 0 / 5.2 416 Gama 32 Be-7 Co-60 C.-137 NA 0086( 28/23 0 063 - 0 116 NA UD ( 0/28 00005 UD ( o I 28 00005 UD ( 0/28 No IIBrmmFcm 3611RidFRoad Ahqmppo,PA 616 !DliaSB Ba-La-140 NA UD ( 0/28

N.....i 1-Llalt ofDo6ocdoa
Iha ad nap baNd.,., doCactahla --- mi,,.

0099 ( 4 / 4 o oas -o 116 UD( 0 / 2S llD ( 0 / 28 UD ( 0 / 28 UD( 0 / 28 J'l'lldlm o/.i..ctalilo Wlti Q &all d opo<flod ~ 112 ladlazted

i-..aa- (hdlo,z)

ColllerWflJ Wettm,WV 164milosSSW No -43 W-W-Towm: eonu.-w., w-.wv 164 llllimSSW

~11eportoc1~ (llefonace, OJ>Ol pn,ednre l/l-ODC-3.03,Auacm-Q,C-.1 J.ll..1)

NA*.Not AppllcaWo (N....u,, Occanias bdlwaadJdl9 "'lot reqalnd bJ ODCM) 0083 ( 4/4 0071 -0094 UD ( 0/4 UD( 0/4 llD ( 0/4 llD ( 0/4 R1LA9690E Encloiure3 0 0 0 0 0 0 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Statloa 2820 Amlaal Radfolop:al Emironmental Operatiq Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Table 2-2 (COlltimled) BAPIQLQGICAL ENVIRQNMENTALMQNITQBING PROGRAM

SUMMARY

Naae ofFacllt,-: Beam YIDc Pgwer Statkm Unit 1 M4 U.U l Docket No.: 5Q-3M / $1:11l Location of Faditr, Beam: Cggty, Ptppylyapla 1tq,ortlnc Period: Caleadar Year-20lO Medlea: Emma! Radiation Unit of~ (mR/ Quaner) Gamm 528 4.6 175 ( 5JO / 520 12 S - 'Z'T.3

Noalml l.mnr Llalt olDdecda No 7BVP8Sdo Poom:lo< Localloo 025 milmSSI!
W-ad.._ baed..,.. dmmllle mt-.,,.

256( 8/1 236- 'Z73 ,....... of dmdlllile.,, - at lpldiod 1ocati.o 1n IDdbteol *.,......a.- (fracdo.) .;..Dndloa No 48 Wm1DIJ. WV W_T.,_. Colh..-Wfff 16.4 mlloo SSW 'N..,..._.a..,rtedMma-(Bdoraa: ODOI pnamn, 1/l-ODC-3.13, Aflaclaoat Q, CGalnl J.n.t) NA -Nat Api,llcahle (NaDna,- Oemrrfa& Rr11 r,w Not nqn,lrN bJ' ODCM) 2-7 19.4 ( I/ 8 181 -207 R1LA9.690E End.OiUI'C 3 0

Beaver Valley Power Statien 2020 Amuw Radieloglcal Envtronaental Operathlg Report SECTION 2-ENVIRONMENTAL MONITORING PROGRAM Table 2-2 (Coethloed) RADIQLOGJCAL ENVJRONMEN[AL MQNITQRING PROGRAM

SUMMARY

Name 81 l'adUty: Belm:YaBa tnr: Bwb 1JJlt 1 P4 UJit l Domt No.: SQ-33,f I SHU Lecatlca el Fadlity: Bcmr fllutt: Pggym.gia Rcportlna Period: Calmdar Year - 2820 Medlua: Surfllcc Watm Umt of Mtwww rmeat. (plcoCuriea / bta") B No 5 l!altl.nwpoolWarDpt UD ( o / 4 Bait Lnapool, OH -4911111aWNW a.- 24 Mn-S4 5 UD ( o I 11 llD ( o I 12 Fo-59 10 UD ( o I 11 UD( o I 11 Co-SB 5 llD ( o I 12 llD ( 0/11 Co-60 llD ( 0 / 12 llD ( o I 12 ZD-65 10 llD ( 0 / 12 llD ( 0 / 12 ~ 5 llD ( 0 I 12 llD ( O / 12 C.-13-4 5 llD ( o I 12 llD ( 0 /12 C.-137 5 llD ( 0 / 12 llD ( 0 / 12 Ba-L..1-4() 10 llD ( 0 / 12 UD ( 0/11

Nmdal 1-Lilllll of>>-:tlca
Man................ ~

dolodal,lo __ J'radloa r,l doamhle --- al,podllod lecalloa.. lllldated In.,.....n- (fntdlm) ... Dlndla No.-49AllpolrMDof Monlaomc<YDom lDdullly,PA -4.93 mililNB o49AUpotr-,,of Monta<-YDom k>daol,y, PA -493 m!lOINB '~Rapmud Mau -(Rdlrece, ODCM pn,ced,ire 1/l-ODC-3A3, ~ Q, c-tnil l.ll.1) NA ~ Not Ap,llcahle (NMualy Occarriioc Jladlomdldoo Not n,q,dnd "1 ODCM) 2-8 UD ( 0/-4 llD ( 0/11 UD( 0/11 llD ( 0/11 llD ( o I 12 llD ( 0 /12 UD( 0 / 12 UD( 0/11 UD( 0 / 12 UD ( 0 / 12 R'ILA9.690E I!nclowre3 0 0 0 0 0 0 0 0 0 0 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaftr Valley Power Station 2028 AAaal Radiolopcal Env1roamental Operatinr Report SECTION l - ENVIRONMENTAL MONITORING PROGRAM Table 2-l (Combuied) RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

~ Name ef lladltty: Bemc YaIJe:t: km: Statlqp Unit 1 IP! UJft 2 Dodlet No.: 50-334 / 50-412 Location of hdHty: Bam: <;pnty, !gmntyyla itq,ortug Pa1od: Calendar Yesr-2628 Medhmt: IJmmu& We= Thdt gf Meuaranmt: (pcoCuries / liter) 0 / 52 B-3 200 UD ( 0/g 8 Omm,a l4 MD-54 5 UD ( o I 2-4 Fe-59 10 UD ( o I 24 Co-SS s UD ( o I 2-4 Co-60 s UD ( o I 2-4

ln,.65 10 UD (

o I 24 Zr~ s UD ( 0 / 2-4 C.-134 5 UD ( 0 / 24 C.137 s UD ( 0 I 24 Ba-L.1-40 10 UD ( 0 124

Nomlal LmnrUmltof>>-'-

.Maaudnu,pbaNdap,adotedahlt ___...,._ UD ( 0/g llD ( o I 2-4 llD ( o I 24 UD( 0 / 24 llD ( o I 24 UD( 0 124 llD ( o I 2-4 llD ( o I 2-4 llD ( 0 / 24 UD( o I 2-4 J'racdon of doladabl. *- a-at. at~ loadlom II ladlcated la panatboooo (hcllce) I--. IIIJIIDlrecdoa 'Namomlaeltaported Mwww-(Reformca: OOCM precedo,re 1/l--ODC.3.13, Attadommt Q, c--al 3.ll.1) NA* Net Appicahle (Nmrall7 OcaurlJis ~ Not ncp,lnd by ODCM} 2-9 RTI, A9.690E EnclOIUI'C 3 0 0 0 0 0 0 0 0 0 0

Beaver Valley Power Station 2020 Allllual Radiolo&fcal Emiromnmal Opersthl& Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Tallle l-2 (Cootmaed) RADIOLOGICAL JNYIRONMENTAL MONITORING PROGRAM SJJMMARX Name or Fadllty: lam Valley fmer SWiPJ U.U t and JJnlt 2 Docbt No.: Sf::33:1 /50-411 Locatioa af Fadltty: B,-m; Cgmrty. falllylyyia Rt,portlaa Period: CalmdarYear-2G20 Medimn: Gromd WIiia" Sulple locatiom are no loager Ill me Unit of~ (picoCmies / liter) Gamma Ml>-S4 Fo-59 10 Co-51 Co-60 10 b-Nb-9:5 C.-137 5

Nomlml 1-er Limit olDdecdoo
.Maa -i nap baed,q,e dolectabli. www-..,,

J'nc6ooi olclmectal,le n.w-..t,podlodloadea ii Indicated Ill puma.- (fractla) 'NmraodlM Jl,ipomdMwm-(Rdtnaca: ODCM pn,cecmo 1/l-ODC-3.63, AttacmNat Q, C-.1 S.ll.1) NA - Noc Appllcahle (NlltJnlly Ocarria& LR 116,w Not nqalr-.cl 111 ODOI) 2-10 I RTLA9.690E I Fnclosme3 I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Amraal Radlolop:al Eavirellmelltal Opentiag Report SECDON 2 - ENVIRONMENTAL MONITORING PROGRAM Tole 2-2 (ContlaaN) RADIQ~CAL ~AL ~RING_PROGRAM SJJMMARX Name or F'adllty: Bm1t Yllc! Power StJtl9t Uplt I md JJJdt 2 DocbtNo.: 50-334/:fll Location of ll'adltty: Bgm: Copty, PCBMY1Yufl Rq,ortblgl'mad: Cakwiaf'Year-20l0 Medbun: fuclpitation Watel" Out of Mc-.emeat: (pcoCuries / liter) o.mn. Mn-54 5 Fe-59 10 Co-58 5 Co-60 s z...-65 10 Zr-,Nb-95 5 C.-134 5 c.m s Be-La-140 10 'Nmaba]I--,-IJ.it.ro..cdoa Sample loca6alll are 110 loapr Ill -

11enw1napbaed~~ uu:wlbmdy.

i'raclllll oldoledahk -- ~ llpKlfted leadNa II iDlllahd In pirmbaol (rr.ctlua) 'N<<arnllu Jloported M-,,_ (1Worwa: ODCM pnttd,, 1./J-ODC-3.03, AltJdiooat Q, OmtNI s.ll.1) NA

Net Applltalok (NMm'ally 0cmrrmg Jtadlondidol Not requed "1 ODOI) 2-11 RTLA9.690E

Deffer Valley Power Station 2020 Annal Radiolopcal.lnviroJUnental 0.,aatiag Report SECI1ON 2-ENVIRONMENTAL MONITORING PROGRAM Table 2-2 (Colltlnaed) RADJOWGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

Name of Fltdllty: Bcmr Ylk!: lvm: 8tatlgp Umt 1 M4 JJmt l 1W.No.1 50-33,f / 50-412 Locattan of Fdlity: Bqnr Cm!tt, Pmnfruk Rq,ortlDg Perledl Calendar Year-2t20 Medhen: Scdlmmt (page I of2) Ualt Df Marm. meat: (picoCmicl / eram) Dry 4 ~ NA 912 ( 2/ 2 No 2.ABVPS 891

933 Oat&JI VIClllllly 031 IIllimWSW Mn-54 002 UD (

0/2 Fe-59 003 llD ( 0/2 Co-53 002 0 15 ( 2/2 No 2.ABVPS 007- 023 Oatfid1 VlCIIDllJ' 031 milmWSW Co-60 002 024 ( 2 12 No 2.ABVPS 0 19 - O 29 Omfol!V,amty 031 nn!C!IWSW a>-6S 004 llD ( 0/2 h-95 003 llD ( 0/2 Nb-95 003 llD ( 0/2 C.-134 006 UD ( 0/2 C.-137 008 006 ( 2/2 No 2ABVP8 006- 007 Outfil1 VICIDl!y o 31 mn.. WSW Ba-La-140 0 03 U1) ( 0 12 eel Dlnc:tlaa 912( 2/2 ) No-49AUimr-,,of 10.00 ( 212 891

933 ManlpncryDom 760- 1240 Indullly,PA 493 milmNE UD( 0/2 UD( 0/2 UD( 0/2 UD( 0/2 0 IS (

2/2 UD( 0/2 0 07 - 0.23 024 ( 212 UD( 0/2 019- 029 UD ( 0/2 UD( 0/2 UD( 0 12 UD( 0/2 UD( 0/2 UD( 0/2 UD( 0/2 UD( 0/2 006 ( 2/2 ) No 49AUpllra!mof 0 OS ( 2/2 006- 007 Monqp:,mcryDom 003-007 Indmtry,PA 4 93 miJeo NE U1) ( 0/2 U1) ( 0/2 2-12 RTLA9.690E F.nclosure 3 0 0 0 0 ) 0 0 0 0 0 0 ) 0 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Anaul Radiolopcal Euwiromaental ()perathlK Report SECI'ION 2 - ENVIRONMENTAL MONITORING PROGRAM Table 2-2 (Colrthlaed) JW>I<>>pGJCAI,, ENVIR,QNtJEN]'AL MQNITOBHW PROGRAM

SUMMARY

Name ~ Padlity: Brem: YIMn: lPm: Statlot JJvt 1 mt Uptt l Dodlet No.: $1::33:f { 5f:4ll Locadoll of ll'adllty: Beem Cout:t, Pww*lteh Repertlng Period: Caksdar Year* 2Q20 Medtam: Sedimmrt (page 2 of2) Umt of Meuunuart: (picoCuries / gram) Illy - 2 2 0 30- 0.30 Bl-214 NA I 06 ( 2/2 1.03 - I Ill Pb-212 NA 091 ( 2 12 078-103 Pl>-214 NA 110 ( 2 12 094-125 .lta-226 NA 1 S2 ( 2 / 2 162-203 Ao-228 NA 0 96 ( 2 12 092- 099 'N..iuII.n-e-LllllltoO>electloa Dlllinctlom 'No.2ABVPS qutfil!Vicmdy 031 lllliosWSW 8-6~/br ,,,.~ ,-bJa

Haalladnapi...iui-ddoctablewww-ealy.

udDlndlG ) No. 49A TJpomm, al MompnoryDom lndmtry,PA 4.93 lllllaNB ~ /oa:,/Jot,fr I 06 ( 2 / 2 tit,~ 1ltlCbda 103- !OIi 091 ( 2/2 078-103 110 ( 2 /2 0.94

125 112(

2/2 162-203 096( 2/2 092- 099 Fraction of clactllblo-- at ljlOCillod lecadou II lloclcacm

panlllllaos (hello,,)

'N--ilne~~(Ran-.-.: ODCMprocadlinl/l-ODC-3.15,~Q,Coatroll.ll.1) NA-Net Applkahle~OawnloaRMi Na Notn<pred b)'ODCM) l-13 067( 2/2 052- 081 063( 2/2 054- 0_73 069( 2/2 066- 072 1 36 ( 2 12 083-189 0 91 ( 2 12 0-74-109 -R1L A9.690E Enclosme3 0 0 0 0 0

Beaver Valley Power Statioia 2020 Annul RAdiologlcal Envinameotal (}pendiJII R.eport SECI1ON 2-ENVIRONMENTAL MONITORING PROGRAM Table 2-2 (Coatlllaed) RADIOLOGICAL ENVIR.QNMENTAL MONITORING PROGRAM

SUMMARY

Name of flldltty: Beam YBDc:r tPlm: StJtia Up# 1 ud Upft 2 Domt No.: :Pf I $HU Locat1mt of ladlltyl Beam: Cogty, Pgwytyyia 11.eportui Pmiodl Cabdar Year - 20lO Medma: 8o&1 (pagi, 1 of2) Unit of Mtuunamt: (picoComi, / grmn) Dry s i;:-40 NA 908 ( ,, I,, No 30B Sbiwio,ipor:, PA 786-996 OS nnlmENB Mn-S4 NA UD ( o I J, Fo-S9 NA UD ( 0 I J, Co-S8 NA UD ( o I J, Co-60 NA UD ( o I J, ~ NA UD ( o I J, Zr-9S NA ll.D ( o I J, Nb-9S NA ll.D ( o I J, C.-13-4 NA ll.D ( 0 I J, C.-137 NA 0 11 ( No 30B 8hq,pmBl)Of1, PA 008- 014 0 S IDlles ENB &-1.a-l',O NA UD ( o I J, udDindlCII 996 ( I / I No -41 Wcn,o, WV II 3-4 ( I/ I 996 -996 16 4 miloo SSW II 3 II 3-4 UD ( o I J, UD( 0/1 UD ( o I,, UD( 0 I I UD( 0 I J, UD( o I 1 ll.D ( o I J, UD ( 0 /1 ll.D ( 0/4 IlD ( 0 I 1 UD( 0/4 ll.D( O I 1 ll.D ( o I J, ll.D ( o I 1 ll.D ( o I J, UD ( 0 I 1 014 ( 1 / 1 No "8 Wmton, WV 016 ( 111 01" -014 16',milmSSW 0 16 - 0 16 UD( 0"' ll.D( 0 I I 2-14 R1LA9.690E Fm:l.osme 3 0 0 0 0 0 0 0 0 0 0 0 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I Beaver Valley Power Statln 2020 Anmlal Radicilogical Emroomea1al Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Table ~2 (~ued) RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM SJJMMARX ~ -. ~ ~ ~--. ~ Name of ll'adlity: Bc1m: Ym Pmm: Sptloe VIU 1 IN JJatt 2 Docket No.: 50-33:f { 50-fll Locau-of Fadlfty: Bcmr Cogty. Pqmyf,:gia Rq,ortag Pmod: Ca1mdar Year - 2020 Medlma: Soil (pqe 2 of2) Ullit ef~art: (plcoCuru8 / gram) Illy 4 /4 -- ') 025 - 026 SOmllaE B,-214 NA o:n < 4 / 4 No3<11~1,PA 073- 079 OS iailoolll@ Pb-212 NA 073 ( 4 / 4 No SIA A1lqalppe, PA 061 - OIS IO milOIE Pb-214 NA 0 80 ( 4 / 4 No46.l~,PA 0.68- 089 23m!JeaNNEIN!l Ra-226 NA I 91 ( 4 / 4 No 461~.PA 1.74 - 2 10 2.3 imlel NNF.00! A.c-228 NA 078 ( 4 / 4 No 32A Mldlaod, PA 068- 092 07rmlaNW

Namt.11-Llmlt of>>-tloa
Menudn,ai,ot-i-,-dolectable~mly.

079 ( 111 079-079 085 ( I /1 0&5 -OIS 089 ( I / 1 089 -089 . 210 ( 1 /1 210 -210 092 ( 1 /1 092 -092 l'radlaa ef dadaNI -- at spedlled lecallau lo lndlcaled *.-.-a- (hclloa) No 48 Wemon. WV 16 4 nnioa' SSW No 48Wernon.WV 164mllmBSW No 48 Wllrtoo, WV 164ulaSSW No 48 Weirton, WV 16 4 1DW11 SSW No 411 Weirlon, WV 16 4 miie,o SSW

NNrvullao Raportad Mwm- (R.oflrwe: 00CM procodlrw 11.Z-ODC-3.13, AttadmMm Q, c..trol l.ll.1)

!(A -Not AAJ11ca1,1e (Nata-aly Oa:arrioo& PncRrs ii""' Not nqo,lrod 117 ODald) 2-15 0.30 030-030 094( 1/1 094- 094 0 89 ( 111 o'.S9- 089 I 01 ( 1 / 1 1 01 - 1 01 196 ( 1 / 1 196-196 091 ( 1 / 1 0 91 - 0 91 RTLA9.690E

Enolosurc,3 0

0 0 0 0

Beaver Valley Power Statioa 2020 AaauI Radhlopcal J:aviroD-1:al Operatbig Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Tallle 2-2 (eo.tiaued) RADIQLOOICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

Name of Fac111ty: Bcmr YIUCY Pmm: Statkm Unit 1 Qd Uptt l Docbt No.: S!:331 / 50-411 Location of hdlityl B,-yg: Coggty. Pqpgytyama Beporthlg Paiod: Calmidar Year-20lO Mediam: Milk Unlto'M anmt:(picoCunel/bter) o I 28 lir-'9 20 UD ( 0 / 'ZI -48 Sr-00 07 09 ( a, 28 No114eo-t~ 48 OS - I 6 Hooblo,m,PA 19 mileoSW Gamma 48 K-40 ISO 1405 ( 28/ 28 Noll4c.....tllmMloooe 427 - 1794 Hoobtown, PA 191111looSW Mn-54 UD ( 0 / ZJI, Fo-59 JO, UD ( 0 / 28 Co-58 UD ( 0 I 28 Co-60 UD ( 0 / 28 ZD-65 JO UD ( 0 / 28 ~ UD ( o I 28 C.-134 s UD ( 0 / ZJI, C.-137 UD ( 0 / 28 Ba-l.a-1-40 JO Ll.D ( 0 / ZJI,

N..i..a! Lowwr Llalt ofDetecdoa
Moe... rap 1-.1-doCectabl. __

UD ( 0 /28 UD( 0 /28 l :2 ( 6/8 09 -16 1478 ( 8/8 4Z1 - 1794 UD( 0 /28 UD( 0 / 28 UD( 0 / 28 Ll.D ( 0 / 28 UD( 0 / :28 Ll.D( 0 /28 Ll.D ( 0 / 28 Ll.D ( 0 /28 UD( 0 / 2& Fradlea ol dolectaWo n -b III ipOdllod locatleM II bodlc:ated la~ (fractia) ad:r..cdaa ' ) No 96 Wmdoboimor Pmn Bu~PA 10.48 mlloa SSW No 96 Wmdlbounor FIIDl Bu.iollJWwu,PA 10 48 milel &WI

~~Mwm-(IWoroce: ODOl..-,dan ~AttadaatQ,Cuetrol3.ll.l)

NA -Not AppllcalM (Nlllually Occurlns :RedloemfWee "Not~ "1 OI>Od) 2-16 UD( 0 /20 UD( 0 /20 07 ( 10 /20 OS -1 0 1327 ( 20 / 20 1201 - 1535 UD( o I 20 UD( 0 /20 UD ( o I 20 UD ( o I 20 UD ( 0 /20 UD ( 0 /20 UD( 0 / 20 UD( 0 / 20 UD( 0 / 20 R1LA9.690E F.nclosme3 0 0 0 0 0 0 0 0 0 0 0 0 0 I I I. I I I I I I I I I I I I I I I I

I I 'I I I I I I I I I I I I I I I I Beaver.Valley Power Station 2020 Annal Ralliolopcal EavironmRtal Opentinc Report SECTION 1-ENVIRONMENTAL MONITORING PROGRAM Table 1-1 (Coatlaaed) RAPIQLQGICAL EN)1RQNMENTAL MQNITOJW'.!G PROGRAM

SUMMARY

Name llf P'acWy: Bemr Yale: f9!m 8tatlop Unft 1 Qd Uptt 2 Dodd No.: 50-334 / 50-4ll Locado!a of J'adllty: Bcmr Cogty, Peppfyfyuta Beportiq Period: Caltmar Year-2020 ~:Fl.lb Ullit of M u::wat. (picoCmies / gRIIII) Wtt 8 ~S4 on, UD ( 0 / 4 Fe-59 010 UD ( 0 / -4 Co-SI 0,0, UD ( 0 / -4 Co-<<J oos UD ( 0 / -4 ~ 010 UD ( 0 /-4 7Nlb-95 0 01 UD ( 0/4 C.-13-4 o.os UD ( 0 / 4 C.-137 oos UD ( 0/4 Ba-La-1-40 001 UD ( 0 / 4

Nomaa11.-Uiidt~>>-tloa
~

ad - lmod tlpOII dohdable __ UD( 0/4 UD ( 0/-4 UD ( 0 / -4 UD ( 0/4 UD ( 0 / -4 UD ( 0 / -4 UD ( 0 /-4 UD ( 0 / -4 UD( 0/4 J'n<:lla.rdactahlo...- -at,pod&d'-lms II lmllcwdla.,.---- (hctloa) 'N-..daollaport.d ~ ~ ODOI ~ tn-ODC-3.13, AttadolNat Q. o.tnl3.11.1) NA *NII.Appllcable (Nlllanlly Occmrl-aR~ Not recpind bJ ODCM) 2-17 UD( 0/-4 UD ( 0/4 UD( o I -4 UD( 0/4 Il.D ( 0/-4 Il.D ( 0 /-4 UD ( 0 /-4 Il.D ( 0 / -4 UD ( O I -4 R1LA9690E &closme 3 0 0 0 0 0 0 0 0 0

Beaver Valley,_er Statioll 2020 Amnial Radiolopcal Environmental Operating Report SECl'ION 2-ENVIRONMENTAL MONITORING PROGRAM Table 2-l (eo.tiued) RADIOLOGICAL ENVIltONMENTAL MONITORING PROGRAM SJJMMABX Name of~ 1kmr Y11kr Ppwg RMJnn lJglt t ml Unit 2 IW No.: -33:f t SHU Location of Fadllty: Bcmr: CGgty, falJnltanla Rcportin& Paiod: Calmdar Year - 2020 Medbun:Fcedatuff UJdt ~ ~a:amt: (pkoCmies / gnm) Wd Gamma 12 Bo-7 0.2 022 ( 2/ 12 No. 'r1 ~ Pcm 0 19

024 3681blplload Ahqmppa,PA 6.16 milmBB J.'..-.IO 0 IS 676 (

12 / 12 No 'r!B,mmFmm 523-109 363).Kld@oi!,.t Ahqmppo,PA 616 milmSB Mn-54 002 UD ( o I 12 P&-,9 004 UD ( O I 12 Co-SS 002 UD ( O I 12 Co-60 002 UD ( 0 / 12 Zn-65 004 UD ( o I 12 Zr-~ 003 UD ( 0 I 12 Rn-103 003 UD ( 0 / 12 1-131 0 06 UD ( 0 / 12 C.-1~ 004 UD ( 0 I 12 C.-137 006 UD ( 0 I 12 Ba-La-140 001 UD ( 0 I 12

Noalal 1-Llmll ofDolioctloa
Mall......_ baod - ~-_

022 ( 2 / 12 019- 024 676 ( 12 / 12 ,23-809 UD( 0 /12 UD( 0 / 12 UD( 0 / 12 UD ( o I 12 UD( o I 12 UD ( o I 12 UD ( o I 12 UD( 0 / 12 UD( o I 12 UD ( 0 /12 UD( 0 / 12 l'raclla ofdotectal,k - -..t opodlod !...u-111 lllcll<ated In pu-all,,om (hdloll) udDlndia 'NoarosllDo~Mtwm-(Rd,o-.-.: ODO!preadiin 1/l-ODC-3.&3,Au.m-tQ,c.tnl112.1) NA - Not Appliablo (Naturally 0cmrrms Pedhewdides Not reqo,lnd by Ooc:M) 2-18 RTI, A9.690E Enclo11Jrc3 0 0 0 0 0 0 0 0 0 0 0 0 0 I I I I I I I I I I I I I I I I I I

I I I I I I I I .I: I I . I I I I I Beaver Valley Power Station 2020 Amnlal Radlulo&lcal Emironmatlll ()pentmi Report SECTION 2-ENVIRONMENTAL MONITORING PROGRAM Table 2-2 (Condaaed) RAD.QWGICAL ENVIRQNMENIAL MONITORING PROGRAM

SUMMARY

Name or Fadllty: Bemr YaDa: fomr Sqtlon Upft t anc1 JJnU l 1W No.: !0-334 / S0-411 Locatloll al FIICiltty: Qcmr Coppty, fMlubvll Beportiag Paiod: Calalur Year-2020 Mediam:FOO<k:rops Unit of MelUuanmt: (pkoCurles /, gram) Wet 0/5 Gamma 6 i:r-40 NA 3 28 ( 5 I 5 No 15 0eo<rB-. PA adDlndloa 435 ( 1 / 1 ) No ffll Wmton, WV 2.24 ( 1 /1 1 a:z. 435 3.76mdooWMW 4.35 -435 16 52 mdeo SSW 224 -224 Mn-S4 NA UD ( o I 5 UD( 0/5 Po-59 NA UD ( 0/5 llD ( 0/5 Co-58 NA UD ( O I 5 UD( 0/5 ~ NA UD ( 0/5 UD( 0/5 Z&6S NA UD ( 0/5 llD ( 0/5 b-Nb-9S NA UD ( o I 5 UD( 0/5 C.-134 004 UD ( O I 5 UD( 0/5 C.-137 006 UD( o I 5 llD ( 0/5 BH..a-140 NA UD ( O I 5 UD( 0/5

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Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Rewrt R1LA9.690E SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Tablel-3 Pre-Operational Environmental Radiological Monitoring Program Summary Name of Faclllty: Beaver Valley Power Station -Docket No.: 50-334 Location of Facility: Beaver County, Pennsylyania Reporting Period: Calendar years 1974 - 1975 Medium or Pathway Analysis and Total Lower Limit AD Indicator Locatiom Sampled Number of Analylil of Detection Mean, Fraction (c), Range (lJnit ofM~~ent) Per(ormed (LLD) Sediments (dry) Gross Alpha (0) [picocuric /gram] OrossBeta (33) 1 18 (33/33) 5 - 30 Sr-=90 (0) U-234, 235, 238 (0) Gamma (33) 13 (33/33) 2-30 K-40 1.5 13 (33/33) 2-30 Cs-137 0.1 0.4 (21/33) 0.1 - 0.6 Zr/Nb-95 0.05 0.8 (12/33) 0.2 - 3.2 Ce-144 03 0.5 (3/33) 0.4 - 0.7 Ru-106(a) 0.3 1.5 (3/33) 13 -1.8 Others <LLD Foodcrops (dry) Gamma (8) [picocmie /gram] K-40 1 33 (8/8) 10 - 53 Cs-137 0.1 0.2 (1/8) Zr/Nb-95 0.05 0.2 (1/8) Ru-106(a) 03 0.8 (1/8) Others <LLD Fccdstaff (dry) Gross Beta (80) 0.05 19 (80/80) 8 - 50 [picocurie /gram] Sr-89 (81) 0.025 0.2 (33/81) 0.04-0.93 Sr-90 (81) 0.005 0.4 (78/81) 0.02- 0.81 Gamma (81) K-40 1 19 (75/81) 5 -46 Cs-137 0.1 0.5 (6/81) 0.2-1.6 Cc-144 03 1.5 (5/81) 0.9-2.6 Zr/Nb-95 0.05 0.8 (13/81) 0.2 - 1.8 Ru-106(a) 0.3 1.4 (12181) 0.6 - 23 Others <LLD Soil (dry) Gross Alpha (0) - Template Samples - GrossBeta (64) 1 22 (64/64) 14-32 Sr-89 (64) 0.25 0.4 (1/64) [picocurie /gram] Sr-90 (64) 0.05 0.3 (48/64) 0.1 - 1.3 U-234, 235, 238 (0) Gamma (64) K-40 1.5 13 (63/64) 5 -24 Cs-137 0.1 1.5 (56/64) 0.1 - 6.8 Ce-144 0.3 1.1 (7/64) 0.2 - 3 Zr/Nb-95 0.05 03 (13/64) 0.1 -2 Ru-106(a) 0.3 1.1 (3/64) 0.5 -2 Others <LLD 2-20 I I I, I, .1 I ,I I I I I I I I I I I I

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I ~ver Valley Power Station 2020 ~ual Radiological Environmental Operating Report RTLA9.690E -Enclosure 3 SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM . ~ Ta~~ 2-3 (Con~ued) Pre-Operation~*~~nm~~ ~dio'9gical,~onitoring ~ ,Summary . Name of Fa~: *Beaver Valley Power Station Docket No.: 50-334 Location of)ra~: Beayqcounij,,-Pemisylvapia -Reporting Peri~: Calendar.years 1974-1975 Medimu or,Pathway An~lyds and 1'.otal .. *1;. ~ ,Y" LowerlJmtt* All Indicator Locations Samp,00. Num~~~~~

of Detection Mean, Fraction (c), Range (Unit of Measurement)

Penon;ned

lLLD)

Soil (dry) 0ross*Alpbi ~ (0) - Core Samples - Gross Beta (8) 1 21 (8/8) 16-28 ~r-89 (~)" 0.25 <LID [picocurie /gram] Sr-90 (8) ' 0.05 0.2 (5/8) 0.08 - 0.5 Gainma (8) K-40 1.5 13 (8/8) 7-20 Cs-137 0.1 I'.2 (7/8) 9.2-2.4 Co-60 0.1 0.2 (1/8) Others :, <JiR-Surface Water Gross Alpha (40) 0.3 0.75 (5/40) 0.6-1.1 [picocurlo / liter] Gross Beta (120) 0.6 4.4 (120/120) 2.5 - 11.4 Gamma (1) 10- 60 <LLD' Tritium (121) 100 300 (120/121) 180 - 800 Sr-89 (0) Sr-90 (0) C-14 (0) Drinking Water 1-131 (0) [picocurie / liter] Gross Alpha (SQ) 0.3 0.6 (4/50) 0.4- 0.8 Gross Beta (208) 0.6 3.8 (208/208) 2.3 - 6.4 Gamma (0) Tritium (211) 100 310 (211/211) 130- 1000 C-14 (0) Sr-89 (0) Sr-90 (0} Ground Water Gross Alpha (19) 0.3 <LLD [picocurie / Im,r] Gross Beta (76) 0.6 2.9 (73n5)(b) 1.3 - 8.0 Tritium (81) 100 440 (77/81) 80- 800 Gamma (1) 10-,.60 <LLD Air Particulates Gross Alpha (188) 0.001 0.003 (35/188) 0.002 - 0.004 and Gaseous Gross Beta (927) 0.006 0.07 (927/927) 0.02- 0.32 [picocurie /cubic meter] Sr-89 (0) Sr-90 (0) 1-131 (816) 0.04 0.08 (2/816) 0.07- 0.08 Gamma (197) Zr/Nb-95 0.005 0.04 (122/197) 0.ot - 0.16 Rn-106 0.010 0.04 (50/197) 0.02-0.09 Ce-141 0.010 0.02 (3/197) 0.01 - 0.04 Ce-144 0.010 0.02 (44/197) 0.01 -0.04 Others <LLD 2-21

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report RTLA9.690E SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Table 2-3 (Continued) Pre-Opentional Environmental Radiological Monitoring Pro&nm Summary Name of Facllity: Beaver Valley Power Station Docket No.: 50-334 Location ofFadHty: Beaver Courit;{fenhs:Ylyania Reporting Period: Calendar years 1974 - 1975 Medium or Pathway Analysis and Total Lower Limit All lndicat,Qr I,.ocatlom Sampled Number of Analysil of Detection M;ean, Fraqion (c), Range (Unit ofMeuurement) Performed (LLD) Milk I-131 (91) 0.25 0.6 (4/91) 0.3 - 0.8 [picocurie / liter] Sr-89 (134) 5 7 (4/134) 6-11 Sr-90 (13,4) 1 5.3 (132/134) 1.5 - 12.8 Gamma (134) Cs-137 10 13 (19/134) 11-16 Others <LLD External Radiation y-Monthly (599) 0.5mR* 0.20 (599/599) 0.08 - 0.51 [ milliR.oentgen / day] y - Quarterly (195) 0.5mR* 0.20 (195/195) 0.11- 0.38 y-Annual (48) o.5mR* 0.19 (48/48) 0.11-030 Fish(wet) Gross Beta (17) 0.01 1.9 (15/17) 1.0- 3.2 [picocurie / gram] Sr-90 (17) 0.005 0.14 (17/17) 0.02- 0.50 Gamma (17) 0.5 K-40 2.4 (17/17) 1.0- 3.7 Others <LLD LLD in units of mR - Lower end of useful integrated exposure detectability range for a passive radiation detector (TLD). (a) May include Ru-106, Ru-103, Be-7. (b) One outlier not included in mean. (Water taken from dried-up spring with high sediment and potassium content. Not considered typical groundwater sample). (c) Fraction of detectable measurements at specified location, indicated in parentheses. 2-22 I .I I ,1 .I .I I I I I .I I, I I I I I I

I I I I I I I, I I 1_ I I ,I I I _I I ~ver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM B. Air Monitoring

1. Characterization of Air and Meteorology RTLA9.690E The air near the site contains pollutants typical for an industrial area. Air flow is generally from the southwest in summer and from the northwest in the winter.

2. Air Sampling Program and Analytical Techniques

a. Program The air is sampled for gaseous radioiodine and radioactive particulates at each of eight (8) offsite air sampling stations. The locations of these stations are listed in Table 2-1 and shown on a map in Figure 2-1.

Samples are collected at each of these stations by continuously drawing two cubic feet per minute of atmosphere air through a glass fiber filter paper and a charcoal cartridge. The glass fiber filter paper is used for collection of airborne particulates, while the charcoal cartridge is used for collection of radioiodine. Samples are collected on a weekly basis. The charcoal cartridge is used in the weekly analysis of airborne iodine-131. The glass fiber filter papers are analyzed each week for gross beta, then composited by the station each quarter for gamma spectrometry analysis. In order to reduce interference from short-lived naturally occurring radioactivity (e.g. radon and thorium), the glass fiber filter papers are allowed to decay prior to performing beta analysis in a low background counting system. Gross Beta Anafysis 9f Filter Paper: Analysis is performed by placing the glass fiber filter paper from the weekly air sample in a 2-inch planchet followed by analysis in a low background, gas flow proportional counter. Gamma Emitter Analysis of Filter Paper: Analysis is performed by stacking all of the glass fiber filter papers ~liected from each monitoring station during the quarter and scanning the composite on a high-resolution germanium gamma spectrometer. lodine-131 Analysis of Charcoal Cartridge: Analysis is performed by a gamma scan of each charcoal cartridge. 2-23

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2-ENVIRONMENTAL MONITORING PROGRAM

3. Results and Conclusions A summary of data is presented in Table 2-2.

a Airborne Radioactive Particulates R1LA9.690E Gross Beta: A total of four hlmdred sixteen ( 416) weekly samples from eight (8) locations were analyzed for gross beta. The results were comparable to that of previous years. Figure 2-2 indicates the weekly average concentration of gross beta in air particulates. Qamma Spectrometry: A total of thirty-two (32) quarterly samples were composited from eight (8) locations and analyzed for gamma spectrometry. Naturally occurring beryllium-7 was identified in twenty-eight of twenty-eight (28 of 28) indicator samples, and four of four (4 of 4) control samples. No other gammas were identified. A summary of the analysis results during the report period are listed in Table 2-2. A trend graph of analyses (including the pre-operational period through the report period) is shown on Figure 2-2. Deviations from Required Sampling and Analysis Schedule: There were seven deviations from the required airborne particulate sampling and analysis schedule during the report period. During the sampling period of 03/23/2020 - 03/30/2020, REMP Air Particulate and Iodine sampling st:iµion located at the Midland North Sub Station (Site No. 32, Sector 15, 0.75 miles NW) was out of service. A Du~e Light employee was not available on the scheduled change-out date (03/30/2020); therefore, the REMP technician was not permitted on site until 3/31/2020 (08:58), at which time the station was found to be out-of-service. Upon investigation, it was determined that a fuse was blown in the pump. (Date and time of malfunction was 03/28/2020 at 15 :48 as conveyed from the calculated volume.) (CR-2020-03313) During the sampling period of 04/06/2020 - 04/13/2020, REMP Air Particulate and Iodine sampling station at Brunton's Dairy in Aliquippa (Site No. 27, Sector 7, 6.16 miles SE) was found to be out of service. The cause was a tripped circuit breaker on the front of the totalizer. The circuit breaker was reset and the station was returned to operation on 04/13/2020. The sample station was out of service for approximately 94.07 hours as reported by the REMP technician. (Date and time of malfunction was 04/09/2020 at 11:44.) (CR-2020-03315) 2-24 )

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I. I I I ,I ,I I .I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM RTL A9.{?90E During the sampling period of 05/1712020 - 05/23/2020, REMP Air Particulate and Iodine ~ling statio:q located in Aliquippa (Sµeffi~ld Sub $1:a!i-on, Site No. 51, Sector 5, 8 miles E) was fOWld to be out of service. The cause was determined to be from shattered varies. iii.' th~ rotary pump.. The ~ van'es w~rc replaced and the station was returned to service on 05/18/2020 at 10:43. The sample station was out of service for approximately 100 hours, as reported oy,the:REMP technic~ (Date and time of malfunction was 05/14/2020 at 05 :00 as conveyed from the calculated ,vo1ume.)(CR-2020-04S81) Durµlg the S8Dlpling period of 06/07 /202 06/13/2020, ~ Air Particulate and Iodine sampling station at Brunton's Dhlry in A11quippa_(Site No. 27, Sector 7, 6.16 miles SE) was found to be out of service. The cause wai a frippect circuit breaker on the front of the totalizer. The circuit breaker was reset and the station was returned to operation on 06/15/2~0. The;~le*station was Q\\Jt of service for approximately 134:51 hours as reported by the-~'technician. (Date and.time of malfunction was 06/09/2020 at 16:38.) (CR-2020-07822) During the sampling peri~d of 08/23/2020 * - 08/29/2070, REMP Air Particulate and Iodine sampling station at Bruntoti's Dairy in Aliquippa (Site No. 27, Sector 7, 6.16 miles SE) was found to be out of service. The cause was a tripped circuit breaker on the front of the totalizer. The circuit breaker was reset and the station was returned to operation on 08/31/2020. The sample station was out of service for approximately 85:48 hours as reported by the REMP technician. (Date and time of malfunction was 08/27/2020 at 18:07.) (CR-2020-06859) During the sampling period of 11/8/2020 - 11/14/2020, REMP Air Particulate and Iodine sampling station located in Weirton, WV (Weirton Water Tower, Collier Way, Site No. 48, Sector 10, 16.40 miles SSW) was found to be out of service. The cause was determined to be from shattered vanes in the rotary pump. The shattered vanes were replaced and the station was returned to service on 11/09/2020 at 10:09. The sample station was out of service for approximately 21 :30 hours, as reported by the REMP technician. (Date and time of malfunction was 11/08/2020 at 12:39 as conveyed from the calculated volume.) (CR-2020-08878) During the sampling period of 11/16/2020 - 11/22/2020, REMP Air Particulate and Iodine sampling station at Brunton's Dairy in Aliquippa (Site No. 27, Sector 7, 6.16 miles SE) was found to be out of service. The cause was determined to be from shattered vanes in the rotary pump. The shattered vanes were replaced and the station was returned to service on 11/16/2020 at 07 :25. The sample station was out of service for approximately 22:50 hours, as reported by the REMP technician. (Date and time of malfunction was 11/15/2020 at 08:15 as conveyed from the calculated volume.) (CR-2020-09353) 2-25

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM RTLA9.690E Summary; Based on the analytical results, the operation of BVPS did not contn'bute any measurable increase in air particulate radioactivity during the report period.

b. Airborne ~oiodine Iodine-131: A total of four hundred sixteen (416) weekly charcoal fiher samples were

~lyzed for iodine-131. Iodine-131 was not identified in any of the three hundred sixty-four (364) indicator samples, nor was it identified in any of the fifty-two (52) control samples. Deviations from Regyired Sampling and Ana]ysis Schedule: The deviations are the same as described above for airborne particulates. Summary: Based on analytical results, the operation ofBVPS did not contribute any measurable increase in airborne radioiodine during the report period. 2-26 I I,, I I .I I I I I I .I .I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report RTLA9.690E SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Figure 2-1 Environmental Monitoring Locations - Air Sampling Stations Claltlaon Bever

Stat irk Office

~IIUI 1 I f FNhtvtn I

48 not shown (10 mi radius shown)

Sample Type Air Particulate a. Radlolodlne J I I I I,.~.. Site No. 13 27 30 32 46.1 47 48 51 Hooutown Sector 11-SW 7-SE 4-ENE 15-NW 2-NNE/ 3-NE R,ccoon Creek St *,, Parf Distance (mlln) 1.49 6.14 0.43 0.75 2.28 14-~ 4.88 10-SSW 16.40 5-E 8.00 2-27 Sample_ Point DNcrlptlon Hookstown, PA (Old Meyer Farm) Aliqulppa, Pa (Bn.llton Farm) Shippingport, PA (Cook's Feny Substation) Midland, PA (Nofth Substation - Rt. 68) Industry, PA (Mc;:Keels Service - Rt. 68) East Liverpool, OH ( Water Department) Weirton, 'IN ( Water Tower, Coller Way) Aliquippa, PA (Sheffield Substation)

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Figure2-2 RTLA9.690E Graph of Annual Average Concentration: Gross Beta in Air Particulates 0.20 0.18 0.16 f 0.14 ct .... 0.12 I t 0.10 i 0.08 u t o.os 0.04 0.02 0.00 ' I. ,a., A ~.. .a._~.... ,. *~ ...-.~- ~ ~ 111;~11,111111111111111 A'lflQI ctl lndellcrt.ocain _.,.__ ClllhllJailll f'1110tnlllnllvu (0.111,0l cmlcfflll., -- RllpldUD(G.01 p(J/Cllltna) ! 2-28

I I I I I I .I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM C. Environmental Radiation Monitoring I. Description of Regional Background Radiation and Sources RTLA9.690E Historical information for regional background was obtained from Reuter-Stokes instruments that were previously located within a five (5) mile radius of the BVPS site. Data is no longer available from these instruments, but historical data indicated that the background exposure rates ranged from 6 µR/hrto 12 µR/hr. The sources of background radiation are affected by the terrain in the vicinity of BVPS, whereas, the local hills (i.e. altitude variations of 300-400 feet) and densely wooded areas contribute to variations in background radiation. Other sources (e.g. radon) are affected by the geological features of the region, which are characterized by nearly flat-laying sedimentary beds of the Pennsylvania age. For information, the local sedimentary beds of limestone alternate with sandstone and shale with abundant interbedded coal layers. Pleistocene glacial deposits partially cover the older sedimentary deposits in the northwest. Most of the region is underlain by shale, sandstone, and some coal beds of the Conemaugh Formation. Outcrops of sandstone, shale, and limestone of the Allegheny Formation exist within the Ohio River Valley and along major tributary streams.

2. Locations and Analytical Procedures Ambient external radiation levels around the site were measured using 1LDs.

During the report period, there were a total of sixty-five (65) environmental TLD locations. This is comprised of forty-four (44) offsite locations, along with twenty-one (21) fence perimeter locations. The offsite TLD locations are plotted on Figure 2-3, but the fence perimeter locations are not plotted due to the large scale of the figure. The TLDs were annealed at the Contractor Central Laboratory shortly before placing the TLDs in their field locations. The radiation dose accumulated in-transit between the Central Laboratory, the field location, and the Central Laboratory was corrected by transit controls maintained in lead shields at both the Central Laboratory and the field office. All dosimeters were exposed in the field for a calendar quarter, in a specific holder that contains two (2) 1LDs at each location. 2-29

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM

3. Results and Conclusions RTLA9.690E A summary of the TLD results during the report period are listed in Table 2-2. A trend graph of analyses (including the pre-operational period through the report period) is shown on Figure 2-4.

TLD Analysis: During the report period, the average quarterly external exposure rate (as measured from TLD) was 17.5 mR at the sixty-five ( 65) indicator locations, and 19.4 mR at the control location. This external exposure rate is comparable to previous years. As expected, there was some variation in external exposure rate among locations and seasons. Deviations from Reguired Sampling and Analysis Schedule: There were no deviations from the required direct radiation monitoring schedule during the report period. Summary: The quarterly TLD external exposure rates are comparable to that of the previous decade. There was no evidence of anomalies that could be attributed to the operation of BVPS. It should also be noted that the average external exposure rate at the indicator locations was less than average external exposure rate at the control location. Based on all the analytical results and the comparison to pre-operational levels, the operation of BVPS did not contribute any measurable increase in external exposure in the vicinity of the site during the report period. The TLD exposure rates also confirm that changes from natural radiation levels, if any, are negligible. 2-30 I I I I I I I I

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I I I I I I I I I I I I I I I I I I 1* Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Figure2-3 Environmental Monitoring Locations - TLDs ~,w, ,

UI * ~

48 not shown (10 mile radius shown) 2-31 RTLA9.690E ctiMon

Site No. 10 28 29B 30 45 46 46.1 Site No. 27 45.1 51 59 76 77 Site No. 13 14 48 81 83 Site No. 15 32 47 60 86 Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Sedor Distance {milts) 3-NE 0.94 4-ENE 1-N 8.60 3-NE 7.97 4-ENE 0.43 5-E 2.19 3-NE 2.49 2-NNE 2.28 3-NE Sector Distance (miles} 7-SE 6.14 6-ESE 1.92 5-E 8.00 6-ESE 0.99 6-ESE 3.80 6-ESE 5.52 Sector Distance {miles) 11-SW 1.49 11-SW 2.53 10-SSW 16.40 9-S 3.69 10-SSW 4.26 Sector Distance (miles) 14-WNW 3.75 15-NW 0.75 14-WNW 4.88 13-W 2.51 13-W 6.18 Figure 2-3 (Continued) TLD Locations NORTHEAST QUADRANT Location Site Sector No. Post Office 70 1-N Shi PA Shellll8llFann 71 2-NNE Brighton Two. PA Friendship Ridge 72 3-NE Beaver PA Cook's Ferry Substation 73 4-ENE Shippin200rt. PA Christian House Baptist Chapel, State Rte 18 74 4-ENE Raccoon Townshio. PA Midway Drive 75 5-E lndmitrv PA McKcel's Service, State Route 68 91 2-NNE Industrv, PA SOUTHEAST<< )UADRANT Location Site Sector No. Brunton Dairy Fann 78 7-SE Aliauin= PA Kennedy's Comers 79 8-SSE Raccoon Townshio, PA Sheffield Substation 80 9-S Aliquinna. PA 236 Green Hill Road 82 9-S Aliauinna PA Raccoon Elementary School 94 8-SSE Raccoon Township. PA 3614 Green Garden Road Aliquinna PA SOUTHWEST QUADRANT Location Site Sector No. Old Meyer Farm 84 11-SW Hoolcstown, PA Hookstown, PA 85 12-WSW Collier Way Water Tower 92 12-Weirton, WV WSW Millcreek United Presbyterian Church 95 10-SSW Hoolcstown PA 735 Mill Creek Road, Hoolcstown. PA NORTHWEST QUADRANT Location Site Sector No. Post Office 87 14-Georgetown, PA WNW North Substation 88A 15-NW Midland PA Water Department 89 15-NW East Liveroool OH 444Hill Road 90 16-NNW Georgetown PA 1090 Ohio Avenue 93 16-NNW East Livemool, OH 1-32 Distance {milts) 3.36 6.01 3.25 2.48 6.92 4.08 3.89 Distance (milts} 2.72 4.46 8.27 6.99 2.25 Distance lmilesl 8.35 5.73 2.81 2.37 Distance (miles) 7.04 2.8 4.72 5.20 1.10 RTLA9.690E Locatio 236 Engle Road Industrv. PA First Western Bank Bril!lrton Township, PA Ohioview Lutheran Chmch - Rear Raccoon Twn PA 618 Squirrel Run Road Monaca PA 137 Poplar Avenue (CCBC) Mniw,a PA 117 Holt Road Aliauinna PA Pine Grove Road & Doyle Road Indumv PA Location Racoon Twp Municipal Building Raccoon Township, PA 106 State Route 151 Green Twp. Aliauinna PA Parle Office, State Route 18 Raccoon Township, PA 2697 State Route 18 Raccoon Twp, PA McCleary & Pole Cat Hollow Road Hoolcstown PA Location Senior Center Hancock ColDltv, WV 2048 State Route 30 West Chester WV Georgetown Road Substation Georgetown, PA 832 McCleary Road Hoolcstown. PA Location 50 I 03 Calcutta Smith Ferry Road Calcutta, OH Route 168 Midland Hcil?hts PA 488 Smith's Ferry Road Ohioville PA 6286 Tuscarawras Road Midland PA I 04 Linden - Sunrise Hills Midland,PA I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Figure2-4 RTLA9.690E Graph of Annual Average Exposure: Direct Radiation in Environment 0.24 ---------------------------------- 0.14 +-----------------------------------1 0.12 +----------------------------------1 0.10 +-1,-..+--+--+----i......+--+--+-+-+-+--+-s......+--+--+-+-+-+--+-t-+-+--+-.-+-+--+-+-+-+--+--+-----+---+--+-----+---+-+--t l' I.f ;~~1~;11111111~1111 I Avngtdlllllrd:amrl..ocllms ........ CnGILocaJoft(Wllllln\\W) -- ~VU(0.21111111/Clif) I 2-33

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2-ENVIRONMENTAL MONITORING PROGRAM RTLA9.690E D. Monitoring of Surface Water, Drinking Water, Groundwater, and Precipitation

1. Description of Water Sources The Ohio River is the main body of water in the area and is the main surface water supply for drinking water in the area. The Beaver Valley Power Station obtains water from the Ohio River for plant make-up water and discharges water to the Ohio River via National Pollutant Discharge Elimination System (NPDES) discharge points (e.g. cooling tower blowdown, liquid effluent releases, etc.).

The Ohio River is the main surface water supply source for towns, municipalities, and industries both upstream and downstream of the BVPS site. The nearest user of the Ohio River as a potable water source is Midland Borough Municipal Water Authority. The intake of the treatment plant is approximately 1.5 miles downstream of the Midland Borough Municipal Water Authority and is located on the opposite side of the river. The next downstream user is East Liverpool, Ohio and is approximately 6 miles downstream. The heavy industries in Midland, as well as other users downstream, also use river water for cooling purposes. Groundwater occurs in large volumes in the gravel terraces which lie along the river and diminishes considerably in the bedrock underlying the site. Normal well yields in the bedrock are less than ten (10) gallons per minute (gpm) with occasional wells yielding up to 60 gpm. In general, the BVPS site experiences cool winters and moderately warm summers with ample annual precipitation evenly distributed throughout the year. The National Climate Data Center indicated the total annual precipitation during the report period for the Beaver Falls, PA area was 44.2 inches.

2. Sampling and Analytical Techniques

a. Surface (Raw River) Water The sampling program of river water included three (3) sampling points along the Ohio River for most of 2016. In December 2016, one of the locations closed in which the program now includes two (2) sampling points.

Furthermore, Site No. 2.1, Sector 14, Midland - A TI Allegheny Ludlum, the downstream sample, is no longer a viable sample location. A TI permanently closed the Midland facility in 2016. As of December 2016, surface water samples were no 2-34 I I I I I I I I I I I I I I I I

I I I I I-I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM RTLA9.690E longer available. Site No. 5, Sector 14, East Liverpool Water Department was an additional downstream sample location in which grab samples were taken. The East Liverpool site was transitioned to a composite sample location thus replacing A TI Allegheny Ludlum. Raw water samples were collected daily at the Water Treatment Plant in East Liverpool, OH, sample location 5, [River Mile 41.2], and then made into a weekly composite sample. Now the water sample is collected with a composite water sampler. The automatic sampler takes a 20-40 mL sample every 15 minutes and samples are collected on a weekly basis. The weekly samples are then combined for a monthly composite sample for each location. The monthly composite samples are analyzed for gamma emitters. In addition, a quarterly composite sample is prepared from the monthly composites for each sample point. Quarterly composites are analyzed for hydrogen-3 (tritium). One automatic river water sampler, located at the ATI-Allegheny Ludlum (formerly J&L Steel) river water intake, sample location 2.1, [River Mile 36.2], was transitioned to East Liverpool due to the closing of the facility. A weekly grab sample is taken upstream of the Montgomery Dam, sample location 49 [River Mile 29.6]. This upstream sample at the Montgomery Dam is the control sample. The weekly grab samples upstream of the Montgomery Dam are analyzed for iodine-131. Weekly grab samples are then made into monthly composites and are analyzed for gamma emitters. Quarterly composites are prepared from each of the monthly composites. The quarterly composites are analyzed for tritium. Locations of each sample point are shown in Figure 2-5.

b. Drinking Water {Public Suimlies)

Drinking water (i.e. treated water) is collected at both the Water Treatment Plant in Midland, PA, sample location 4, and the Water Treatment Plant in East Liverpool, OH, sample location 5. An automatic sampler at each location collects 20-40 mL every 20 minutes, which is then combined for a weekly composite sample. The weekly composite sample from each location is analyzed for iodine-131. Monthly composites are prepared from the weekly samples and are analyzed by gamma spectrometry. In addition, a quarterly composite sample is prepared for each sample point from the monthly composites. Quarterly composites are analyzed for tritium. A weekly grab sample is taken upstream of the Montgomery Dam, sample location 49A [River Mile 29.6]. This upstream sample at the Montgomery Dam is the control sample. The weekly grab samples upstream of the Montgomery Dam are analyzed for iodine-131. Weekly grab samples are then made into monthly composites and are 2-35

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM RTLA9.690E analyzed by gamma spectrometry. Quarterly composites are prepared from each of the monthly composites. The quarterly composites are analyzed for tritium. Locations of each sample point are shown in Figure 2-5.

c. Groundwater Since these samples are not required, they will no longer be collected as of 2017.

For historical information, groundwater was collected semiannually by grab samples at locations within four (4) miles of the site, one (1) well in Hookstown, PA and one (1) well in Georgetown, PA. Each ground water sample was analyzed for tritium and is analyzed by gamma spectrometry.

d. Precipitation Since these samples are not required, they will no longer be collected as of 2017.

For historical information, precipitation was collected in Shippingport, PA, East Liverpool, OH, and Weirton, WV. Precipitation, when available, was collected each week and combined for quarterly composite samples from the weekly samples. The quarterly composites were analyzed for tritium and gamma emitters.

e. Procedures Gamma Analysis of Drinking Water and Surface Water: The analysis is performed by placing one liter of the sample into a Marinelli container and analyzing on a high-resolution germanium gamma spectrometry system. Although not required by the ODCM, this analysis is also performed on groundwater and precipitation samples.

Tritium Analysis of Drinking Water and Surface Water: The tritium is determined in water samples by liquid scintillation analysis. Although not required by the ODCM, this analysis is also performed on surface water, groundwater and precipitation samples. Iodine-131 Analysis of Drinking Water: The sample is chemically prepared and analyzed with a low-level beta counting system. Although not required by the ODCM, this analysis is also performed on surface water samples. 2-36 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM

3. Results and Conclusions RTLA9.690E A summary of the analysis results of water samples (surface water, drinking water, ground water, and precipitation) during the report period are listed in Table 2-2. A trend graph of analyses (including the pre-operational period through the report period) is shown in Figures 2-6 through 2-9.

a. Surface Water Tritium: A total of eight (8) surface water samples were analyzed for tritium during the report period. Tritium was not detected in the four (4) indicator samples nor the four (4) control samples.

Gamma Spectrometry: A total of twenty-four (24) surface water samples were analyzed by gamma spectrometry during the report period. Gamma emitting radionuclides were not detected in the twelve (12) indicator samples, nor were they detected in the twelve (12) control samples. Iodine-131: Although not required by the ODCM, a total of twenty-six (26) surface water control samples were analyzed for iodine-131 using radiochemical methods during the report period. Iodine-131 was detected in four of twenty-six ( 4 of 26) weekly control samples, of which zero (0) analysis exceeded the reporting level of 2 picocurie / liter. The results were similar to previous years, (current annual range= LLD to 0.50 picocurie / liter). The positive results were detected at the control location, which is five (5) miles upstream (not influenced by BVPS operation). Identification of iodine-131 during the report period was most likely due to medical diagnostic and treatment procedures performed at upstream facilities.

b. Drinking Water Tritium: A total of eight (8) drinking water samples were analyzed for tritium during the report period. Tritium was not detected in the four (4) indicator samples nor the four (4) control samples.

Gamma Spectrometry: A total of twenty-four (24) drinking water samples were analyzed by gamma spectrometry during the report period. Gamma emitting radionuclides were not detected in any of the twenty-four (24) indicator samples. 2-37

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM RTLA9.690E lodine-131: A total of fifty-two (52) drinking water samples were analyzed for iodine-131 (using radiochemical methods) during the report period. Iodine-131 was not detected in any of the fifty-two (52) indicator samples.

c. Groundwater Since these samples are not required, they will no longer be collected as of 2017.

d. Precipitation Since these samples are not required, they will no longer be collected as of 2017.

e. Deviations from Reguired Sampling and Analysis Schedule: There were no deviations from the ODCM required water sampling and analysis schedule during the report.

f.

Summary: Data from the water sample analyses demonstrate that BVPS did not contribute a significant increase of radioactivity in the local river and drinking water. The analytical results confirm that the station assessments, prior to authorizing radioactive discharges, are adequate and that the environmental monitoring program is sufficiently sensitive. 2-38 I I I

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I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM l aver crJek are Forest I I

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~ I I ~ I t I -- 1 cf 5 mil~ radius shown Figure2-5 Environmental Monitoring Locations - Surface Water and Drinking Water Industry Shippingport Hook;town \\ \\ RTLA9.690E Sample Type Site Sector Distance Sample Point Description No. (mlln) 4 15-NW 1.26 Midland. PA (Water Department) Drinking Water 5 14-WNW 4.90 East Liverpool, OH (Water Department) 5 14-WNW 4.90 East Liverpool, OH (Water Department) Surface Water 49A 3-NE 4.93 Industry, PA (Upstream Montgomery Dam) 2-39

Beaver Valley Power Station RTLA9.690E 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Figurel-6 Graph of Annual Average Concentration: lodine-131 in Surface Water & Drinking Water 115 +----------------------------- - -----1 l j t 1.0 -------------------------------- _..,__o.-a.-n~WMlilir"-M..... 0-.._,.~Wlllialt---~._.._ Udl2DW .21pCII -, ft LLD.:a,_ R Plprel-7 Graph of Annual Avenge Concentration: Tritium in Surface Water 100000...--------------------------------. 10000 i \\ , \\ ~ /~ i \\ I g J \\ \\ '\\\\ ; ' j ' \\ i 1000 -~ ~

- 11\\

\\! \\ t ,Ja. 100 10 +-+-+--+-lf-+-+-+--+--+-+-+--+--+-lf-+-+-+-+--+-+-i-1--+-+--+--+-+-+-+-+-+-+--+-+--+--+-+-+-+--+--l-+--+-4 ~~,~;~,~~;#;~~~~~~~~~~~ I..... __.,_o,a,. - ~-(1011) -----paQ -- -UDQ,OOOpCrt __ _ pCM)I 2-40 I I I I

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I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station RTLA9.690E 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Figure2-8 Graph of Annual Average Concentration: Tritium in Drinking Water 100000 10000 e i I 1000 I l 100 ~ -~ -I\\ \\... / - ----~ 10 ;;,;;~~,,;~;,,;;;~~~~~~ ............,...,,....., __,,,.._ c..-o1LDc:C10nu,0111> -- P,.C>Mraaanel(J:10,c,1 -- Ft..-.OU.Oc:t.OOOSICWI --~LJwet0nnanaw...,,20,aoopa11) j Figure 2-9 Graph of Annual Average Concentration: Tritium in Groundwater 100000..,.....---------------------------------- 10000 e i I 1000 I t 100 Contml LO<atioo No..... M _ / 10 +-,-....,-+--t--t--+-+-,-....,-+--t--t--+-+--<-+-+-t--t-+-+--t-+-+--t--+-+--<t--t--+--t--+--+-+-t--t-+-t--+--1 ~~~#;~~~#;;;~~;~~~~~~ -*,.... *

lndlC.n>rMean (pCl/1) con1n11 LDcallan (PCt 11)

-- Pre* Oparalonal ("4:> pCIII) -- RequlloeOUDl'l,OOOpCIII) I.AMII <Jroundlr.... (30,000 ) 2-41

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM E. Monitoring of Shoreline Stream Sediment and Soil

1. Characterization of Shoreline Stream Sediment and Soil RTLA9.690E The stream sediment (river bottoms) consists largely of sand and silt. Soil samples may vary from sand and silt to a heavy clay with variable amounts of organic material.

2. Sampling Program and Analytical Techniques

a. Program Shoreline stream sediment was collected semi-annually above the Montgomery Dam, and near the BVPS outfall structure. A Ponar or Eckman dredge is used to collect the sample. The sampling locations are also listed in Table 2-1 and are shown in Figure 2-10.

Although not required by the ODCM, soil samples were collected at each of the nine (9) locations in 2015. In 2017, the locations were reduced from ten (10) to five (5), as well as the sample frequency was revised from once per three years to once every five years. Soil was last sampled in 2015 and was recently performed in 2020. At each location, twelve (12) core samples (3" diameter by 2" deep) are gathered at prescribed points on a 10-foot radius circle. Each location is permanently marked with reference pins. Each set of samples is systematically selected by moving along the radius in such a manner as to assure representative undisturbed samples. Sampling locations are listed in Table 2-1 and are shown in Figure 2-10. Shoreline stream sediment and soil are analyzed for gamma-emitting radionuclides.

b. Analytical Procedures Gamma Emitter Analysis of Stream Sediment: Analysis is performed in a 300 mL plastic bottle and analyzed by gamma spectrometry.

Gamma Emitter Analysis of Soil: Although not required by the ODCM, analysis is performed in a 300 mL plastic bottle and analyzed by gamma spectrometry. 2-42 I I 'I I I I I I I I I I I I I I ii

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM

3. Results and Conclusions RTLA9.690E A summary of the analysis results during the report period are listed in Table 2-2. A trend graph of analyses (including the pre-operational period through the report period) is shown on Figure 2-11 and Figure 2-12.

a. Shoreline Stream Sediment Gamma Spectromett:y: A total of four (4) sediment samples were analyzed by gamma spectrometry during the report period. Naturally occurring potassium-40, cesium-137, thallium-208, bismuth-214, lead-212, lead-214, radium-226 and actinum-228, were detected in two of two (2 of2) indicator samples and two of two (2 of2) control samples.

Cesium-137: Radionuclide cesium-137 was identified in two of two (2 of 2) indicator samples and two of two (2 of 2) control samples. The results were comparable to that of previous years (current annual range= 0.06 to 0.07 picocurie / gram) and less than the pre-operational level of 0.4 picocurie / gram. Also, because cesium-137 was identified at the control location (upstream), then it was not due to plant effluent releases and is most likely residual contamination due from previous nuclear weapons tests. Cobalt-58: Radionuclide cobalt-58 was identified in two of two (2 of 2) indicator samples and zero of two (0 of 2) control samples. The samples, which indicated cobalt-58, were obtained at the shore line of the BVPS Main Outfall Facility. The results were comparable to previous years (current annual range = 0.07 to 0.23 picocurie / gram), and the data is slightly higher than the BVPS Main Outfall Facility pre-operational level of 0.098 picoCurie / gram. Cobalt-60: Radionuclide cobalt-60 was identified in two of two (2 of 2) indicator samples and zero of two (0 of 2) control samples. The samples, which indicated cobalt-60, were obtained at the shore line of the BVPS Main Outfall Facility. The results were comparable to previous years ( current annual range = 0.19 to 0.29 picocurie / gram), and the data is currently lower than the BVPS Main Outfall Facility pre-operational level of 0.4 picocurie / gram. Deviations from Required Sampling and Analysis Schedule: There were no deviations from the required sediment sampling and analysis schedule during the report period. 2-43

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM RTLA9.690E Summary: The identification of cobalt-58 and cobalt-60 in the shoreline stream sediment near the main outfall facility is not unusual because the plant discharges these radionuclides in liquid effluent releases. The analyses are consistent with discharge data of authorized liquid effluent releases, and all liquid effluent releases during the report period did not exceed the release limits set forth in the ODCM.

b. Soil Gamma Spectrometry: A total of five (5) soil samples were analyzed by gamma spectrometry during the report period. Naturally occurring potassium-40, thalium-208, bismuth-214, lead-212, lead-214, radium-226 and actinum-228, were detected in four of four (4 of 4) indicator samples and one of one (1 of 1) control samples.

Cesium-137: Radionuclide cesium-137 was identified in four of four (4 of 4) indicator samples and one of one (1 of 1) control samples. The results were similar to previous years (current year range= 0.08 to 0.14 pico Curie I gram) and less than the pre-operational level of 1.2 pico Curie / gram. Also, because cesium-13 7 was identified at the control location (Weirton), then it was not due to plant effluent releases and is most likely residual contamination from previous nuclear weapons tests. Deviations from Reguired Sampling and Analysis Schedule: Two deviations from the required soil sampling and analysis schedule occurred during the report period. Sample Point 46B, Industry-Willows Inn-Route 68, was paved over due to the new ownership/renovation of the Willow's Motel and Entertainment Center. Sample Point 30A, Shippingport, PA, Cooks Ferry Substation, was relocated near the Air Monitoring Station within the same area. Summary: The identification of cesium-13 7 in the soil samples around the plant is not unusual because these radionuclides have been found in the environment from previous nuclear incidents and testing. 2-44 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report RTLA9.690E SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Figure 2-10 Environmental Monitoring Locations - Shoreline Sediments and Soil Clarbon Beaver

,eek-State 0arlc<Jfflce

mpire

48 not shown (10 mi radius shown)

Sample Type Site No. Sector 308 4-ENE 32A 15-NW Soll 48.1 3-NE 48 10-SSW 51A 5-E 2A 12-WSW Sediment -49A 3-NE Raccoo~ Ctt,k* Stete Park Clinton ca Distance (miles) 0.-43 0.7-4 2.66 16.40 7.99 0.31 -4.93 2-45 Pl~* tntemetic Ai,r-.n, Sample Point Description Shippingport, PA (Cooks Feny Substation) Midland, PA (North Substation) lndusby, PA 'Nelrton, VW (CoRier way Water Tower) Aliquippa, PA (Sheffield Substation) Shippingport, PA (BVPS OutfaU Vicinity) lndusby, PA (Upstream Montgomery Dam)

Beaver Valley Power Station RTLA9.690E 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Figure 2-11 Graph of Annual Average Concentration: Cesium-137, Cobalt-58 & Cobalt-60 in Sediment 100.00 a I 10.00 i I ) 1.00 l 0.10 0.01 __ -t---1 ______ --+-______ --+-__ -t---1 ______ --+-__ --___

~,;~~~~;~~~~~~;#~~~~~~

- -** C.137 C4n>oll.O<a"'1C.137 --Cl-'1J1--IO-*-

--c..137-UDC1*- I 100.00 ~ i 10.00 ~ E 1.00 D I 0 0.10 8 D. 0.01 -t-t-+-+-+-+-+-+-+-t-+~~+...-+-+-+-+-+-+-+-+-+-+-+-+~t-t-+...-+-+-+-+-+-+-+-+-+-+-+-+-1 ~~~~~###~#~~~#~~/~~~~,~ Co - Urll2 Pre-Opllllllmatllean C0-58 (0.0118 pcll!Jn) - Co-GO ** *** **** Uri! 2 Pre-Opnlialal lilean Co-30 (UO pCilgra 2-46 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Figurel-12 Graph of Annual Average Concentration: Cesium-137 in Soil RTLA9.690E !1.0+--- --------------------------l ~ I o.s - ~ ... a 0.6 +----+--"'k:-- ---'\\..--:;----"--------------------; t 0.4 +----+-cr-----"-"',,-;---::,........."-'::---~ --------------f 0.0---------------------------- ~~, ~"' ii> ;-,;.I,I', ~,f' ~ ~~ ~,p c.137 cno11.oca1on c.1n~c1.2pc:11i,am) 2-47

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM F. Monitoring of Local Cow and Goat Milk

1. Description - Milch Animal Locations RTLA9.690E Samples of fresh milk are obtained from milch animals at locations and frequencies noted in Table 2-1.

The milk is analyzed for its radioiodine content, gamma emitters, strontium-89 and strontium-90. Detailed field surveys are performed during the grazing season to locate and enumerate milch animals within a five (5) mile radius of the site. Survey data for the most recent survey conducted is shown in Section 3, Land Use Census.

2. Sampling Program and Analytical Techniques

a. Program Cow milk was collected from the one (1) reference dairy farm within a 10-mile radius of the BVPS, Brunton Dairy Farm (6.076 miles southeast) and one (1) control location dairy farm outside of the 10-mile radius, Windsheimer Dairy Farm (10.475 miles south-southwest).

Dairy cow sampling has been performed at Brunton Dairy since 2016, due to the closure of Halstead Dairy and Searight Dairy in 2014. Additionally, one goat location was available for sampling and samples were obtained at the Covert Residence (2.131 miles southwest). The dairies are subject to change based upon availability of milk or when more recent data (milch animal census, and/or change in meteorological conditions) indicate other locations are more appropriate. The milk samples are collected and analyzed biweekly when the animals are on pasture and monthly at other times. The monthly and/or biweekly sample is analyzed for principle gamma emitters (including cesium-137 by high resolution germanium gamma spectrometry), and iodine-131 high sensitivity analysis. Although not required by the ODCM, the monthly and/or biweekly sample is also analyzed for strontium-89, strontium-90. The location of each is shown in Figure 2-8 and described below. 2-48 I I I I I 'I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Table2-4 Local Cow and Goat Locations Approximate Distance and Direction Site Dairy Number of Animals from Midpoint between being Milked Unit 1 and Unit 2 Reactor 25* Searight Dairy 948 McCleary Road Dairy Closed end of 2.107 miles SSW 2013 Hookstown, PA 27 Bnmton Dairy 3681 Ridge Road 102 Cows 6.076 miles SE Aliquippa, PA 96 Windsheimer Dairy 20 Windsheimer Lane 73 Cows 10.475 miles SSW Burgettstown, PA Halstead Dairy 113* 104 Tellish Drive Dairy Closed 5.184 miles SSW beginning of 2014 Hookstown, PA Covert Residence 114 930 Pine Street (Route 168) 11 Goats 2.131 miles SW Hookstown, PA

Highest potential pathway dairies based on evaluation of deposition parameters 2-49 RTLA9.690E Collection Period January thru December January thru December January thru December January thru December January thru December

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM

b. Procedure RTLA9.690E Iodine-131 Analysis of Milk: The milk samples are chemically prepared, and then analyzed with a low-level beta counting system.

Gamma Emitter Analysis of Milk: This is determined by gamma spectrometry analysis of a 1-liter Marinelli container of milk. Strontium-90 Analysis of Milk: Although not required by the ODCM, the milk samples are prepared by adding a stable strontium carrier and evaporating to dryness, then ashing in a muffle furnace, followed by precipitating phosphates. Strontium is purified in all samples by the Argonne method using 3 grams of extraction material in a chromatographic column. Stable yttrium carrier is added, and the sample is allowed to stand for a minimum of 5 days for the in-growth ofyttrium-90 (Y-90). Yttrium is then precipitated as hydroxide dissolved and re-precipitated as oxalate. The yttrium oxalate is mounted on a nylon planchet and is counted in a low-level beta counter to infer strontium-90 activity. Strontium-89 Analysis of Milk: Although not required by the ODCM, the strontium-89 activity is determined by precipitating strontium carbonate (SrCO3) from the sample after yttrium separation. This precipitate is mounted on a nylon planchet and is covered with an 80 mg/cm2 aluminum absorber for low level beta counting. Chemical yields of strontium and yttrium are determined by gravimetric means.

3. Results and Conclusions A summary of the analysis results during the report period are listed in Table 2-2. A trend graph of iodine-131 and strontium-90 analyses (including the pre-operational period through the report period) is shown on Figure 2-13.

a. Strontium-89: Although not required by the ODCM, a total of forty-eight ( 48) milk samples were analyzed for strontium-89 during the report period. Strontium-89 was not detected in any of the twenty-eight (28) indicator samples, nor was it detected in any of the twenty (20) control samples.

b. Strontium-90: Although not required by the ODCM, a total of forty-eight (48) milk samples were analyzed for strontium-90 during the report period. Strontium-90 was detected in eight of twenty-eight (8 of 28) indicator samples and ten of twenty (1 O of 2-50 I

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I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM R1LA9.690E

20) control samples. The levels detected were attributed to previous nuclear weapons tests and are within the expected range.

c. Gamma Spectrometry: A total of forty-eight ( 48) milk samples were analyzed by gamma spectrometry during the report period. Naturally occurring potassium-40 was present in twenty-eight of twenty-eight (28 of 28) indicator samples and twenty of twenty (20 of 20) control samples. No other gamma-emitting radionuclides were identified during analysis.

d. Iod_ine-131: A total of forty-eight ( 48) milk samples were analyzed for iodine-131 during the report period. Iodine-131 was not detected in any of the twenty-eight (28) indicator samples, nor was it detected in of the twenty (20) control samples.

e. Deviations from Required Sampling and Analysis: There was one deviation from the required milk sampling and analysis schedule occurred for the reporting period.

Sufficient milk samples were not available from locations within the 5-mile radius in 2020. The unavailability of milk caused the REMP to not meet the ODCM sample requirements in l/2-ODC-2.03 and in l/2-ODC-3.03, Attachment Q Table 3.12-1 stating that a minimum of four (4) milk locations shall be sampled. This initiated the ODCM requirement for sampling two (2) additional garden locations based upon the highest predicted annual average D/Q when milk locations are not available.

f.

Summary: Based on all the analytical results and the comparison to pre-operational levels, the operation of BVPS did not contribute any measurable increase in radioactivity in the milk during the report period compared to previous years. 2-51

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report RTLA9.690E SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Clark on 10 mile radius shown SampleType Site No. 27 MIik 96 114 Figure2-13 Environmental Monitoring J,ocations - Milk OhicM1le Sector 7-SE 10-SSW 11-SW Raccoon Cr,

sr t Parle Distance (miles)

Sample Point Description 6.1 Aliquippa, PA (Brunton Fann) 10.4 Burgettstown, PA (Windsheimer Farm) 1.9 Hookstown, PA (Covert Residence) 2-52 I I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report RTLA9.690E SECTION 2-ENVIRONMENTAL MONITORING PROGRAM Figure 2-14 Graph of Annual Average Concentration: Iodine-131 & Sr-90 in Milk 14.0 12.0 10.0 1 a.o I a 8.0 t -4.0 2.0 0.0 1970'5 Weapons Testing / ,/ I I \\ \\ /\\

,,.1/....V

\\ t "Chernobyl Accklenl Fukushima Accident ~ ./,LA.......... z,,. ..I' '\\.. ~. J \\..

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I ____... __ ---C-- --**11--(P.ljl(J/_, __, 3 10 -------------------------------. 9+--------------------------------t a~------------------------------1 s 1~------------------------------1 g6+---..,-------------------------------I I +i-+-if--'\\,.._--i-~-tt:----------------------------------------------~------------------------------------------~----~------~ 5 I U 4- ---------,------------------------1 13-- --- -~--------------- 0 +-+-+--+-l-+--+-< ____________________ +-+-+--+-l-+--+-s--+-1-+-1 ~~,~;,,,~;~~~~;~~~~~~~~ -- Av~ of 1,-111:atOr Loadans ---* --- control LDCllton -- Sr-90 Pr9-0penllllllalvalul ~.3 pa/ lllr) 2-53

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM G. Monitoring of Fish

1. Description RTLA9.690E During the report period, fish species collected for the radiological monitoring program included channel catfish, brown catfish, and carp.

2. Sampling Program and Analytical Technigues

a. Program Fish samples are collected semi-annually in the New Cumberland pool of the Ohio River at the Beaver Valley effluent discharge point and upstream of the Montgomery Dam. The edible portion of each species caught is analyzed by gamma spectroscopy.

Fish sampling locations are shown in Figure 2-15.

b. Procedure A sample is prepared in a standard tare weight 300 mL plastic bottle and scanned for gamma emitting nuclides with gamma spectrometry system which utilizes a high-resolution germanium detector.

3. Results and Conclusions A summary of the analysis results during the report period are listed in Table 2-2. A trend graph of analyses (including the pre-operational period through the report period) is shown on Figure 2-16.

Gamma Spectrometry: A total of eight (8) fish samples were analyzed by gamma spectrometry during the report period. Gamma emitting radionuclides were not detected in any of the four (4) indicator samples, nor were they detected in any of the four (4) control samples. Deviations from Reguired Sampling and Analysis Schedule: There were no deviations from the required fish sampling and analysis schedule during the report period. Summary: Based on the analytical results, the operation ofBVPS did not contribute any measurable increase in radioactivity in the Ohio River fish population during the report period. 2-54 I I I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM tYffCt l .,. t st I 5 mil~ radius shown Figure 2-15 Environmental Monitoring Locations - Fish sr,teG,me tinds Number 173 @) Hoakltown @) @!) ~ @) \\ ""t~ (il @) RTLA9.690E Sample Type Site No. Sector Distance (mlles) Sample Point Description Fish 2A 12-WSW 0.31 BVPS OutfaH Vicinity 49A 3-NE 4.93 lndustrv, PA (Upstream Montaomerv Dam) 2-55

Beaver Valley Power Station RTLA9.690E 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM I I Figure2-16 Gnph of Annual Average Concentration: Cesium-137 in Fish 10<nJ.OOO....----------------------------- 1000.000...------------------------------1 100.000..------------------------------1 i 10.000 I a t 1.000------------------------------1 0.100..------------------------------1 ~ i\\ Ar*, .-~ 0.010 r~~-t"~~~:,~~!t~~~~~~~~~~~~~~~~~~~~.'.!~~~~~~~~~~~~~~~~~~~~~~~~~~

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I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM H. Monitoring of Feedstuff and Foodcrops

1. Characterization of Farm Products R1LA9.690E According to the 2017 Census of Agriculture <1>, there were six hundred and thirteen (613) farms in Beaver County. Total market value of production was $23,653,000.00 and of the total market value, $14,486,000.00 from crops and $9,167,000.00 from livestock.

Some of the principal sources ofrevenue (>$25,000.00) are as follows: Mille and Other Dairy Products from Cows Other Crops and Hay Nursery, Greenhouse, Floriculture and Sod Grains, Oil Seeds, Dry Beans and Dry Peas Cattle and Calves Vegetables, Melons, Potatoes and Sweet Potatoes Cut Christmas Trees, and Short Rotation Woody Crops Fruits, Tree Nuts and Berries Sheep, Goats and their Products Other Animals and Other Animal Products Horses, Ponies, Mules, Burros, and Donkeys Poultry and Eggs Hogs &Pigs $5,597,000.00 $4,849,000.00 $4,127,000.00 $2,799,000.00 $1,859,000.00 $1,507,000.00 $739,000.00 $466,000.00 $95,000.00 $86,000.00 $61,000.00 Undisclosed Amount Undisclosed Amount (1) bttps://www.nus.usda.gov/Publications/AgCensus/2017 /Online_ Resources/County _Profiles/Pennsylvania/index.pbp 2-57

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM

2. Sampling Program and Analytical Technigues

a. Program RTLA9.690E Feedstuff: Although not required by the ODCM, representative samples of feedstuff (cattle feed) are collected monthly from the nearest dairy farm (Brunton Dairy) and analyzed by gamma spectrometry. See Figure 2-17.

Foodcrops (leafy vegetables): Foodcrops are collected at garden locations during the growing season. Leafy vegetables ( e.g. cabbage) are obtained from Shippingport, Raccoon, Georgetown, and Industry, Pennsylvania. Samples are obtained from two (2) additional locations based upon the highest predicted annual average ground D/Q when milk locations are unavailable. Samples are also obtained from the control location in Weirton, West Virginia. All samples are analyzed for gamma emitters by gamma spectrometry. Samples are also analyzed by radiochemical analysis for iodine-131.

b. Procedures Gamma Emitter Analysis of Foodcrops: Analysis is performed by scanning a dried, homogenized sample with a gamma spectrometry system.

A high-resolution germanium detector is utilized with this system. Samples of feedstuff and foodcrops are loaded into tare weight 150 or 300 mL plastic bottles or I-liter Marinelli containers, weighed and the net weight of the sample is determined prior to scanning for gamma emitters. Gamma Emitter Analysis ofFeedstuff: Although not required by the ODCM, analysis is performed by scanning a dried, homogenized sample with a gamma spectrometry system. A high-resolution germanium detector is utilized with this system. Samples of feedstuff and foodcrops are loaded into tare weight 150 or 300 mL plastic bottles or I-liter Marinelli containers, weighed and the net weight of the sample is determined prior to scanning for gamma emitters. Iodine-131 Analysis of Foodcrops: Analysis is performed by radiochemistry. A stable iodide carrier is added to a chopped sample, which is then leached with a sodium hydroxide solution, evaporated to dryness and fused in a muffle furnace. The melt is dissolved in water, filtered and then treated with sodium hypochlorite. The iodate is then reduced to iodine with hydroxylamine hydrochloride and is extracted with toluene. It is then back-extracted as iodide into sodium bisulfite solution and 2-58 I I I I I I I I I I I I I I I I

I I I I I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM RTI., A9.690E precipitated as palladium iodide. The precipitate is weighed for chemical yield and is mounted on a nylon planchet for low level beta counting.

3. Results and Conclusions A summary of the analysis results during the report period are listed in Table 2-2. A trend graph of analyses (including the pre-operational period through the report period) is shown on Figure 2-18.

a. F eedstuff Gamma Spectrometry: Although not required by the ODCM, a total of twelve (12) samples were analyzed by gamma spectrometry. Naturally occurring potassium-40 was identified in twelve of twelve (12 of 12) samples. Naturally occurring beryllium-7 was found in two of twelve (2 of 12) samples.

Deviations from Reguired Sampling and Analysis Schedule: There were no deviations from the required feedstuff sampling and analysis schedule during the report period. Summary: The data from the feedstuff analyses was consistent with previous data. Based on the analytical results, the operation of BVPS did not contribute any measurable increase in radioactivity in the feedstuff during the report period.

b. Foodcrops Iodine-131: A total of seven (7) samples were analyzed for iodine-131. No detectable concentrations were present in the six (6) indicator samples or the one (1) control sample.

Gamma Spectrometry: A total of six (6) samples were analyzed by gamma spectrometry. Naturally occurring potassium-40 was identified in five of five (5 of 5) samples indicator samples and the one (1) control sample. Deviations from Reguired Sampling and Analysis Schedule: There were no deviations from the required foodstuff sampling and analysis schedule during the report period. Summary: The data from the foodcrops analyses was consistent with previous data. Based on the analytical results, the operation of BVPS did not contribute any measurable increase in radioactivity in the foodcrops during the report period. 2-59

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM Figure 2-17 Environmental Monitoring Locations - Feedstuff and Foodcrops 00 srateGJmt Llltds Numt* f l ~ @) @) [!m)

48 not shown (5 mile radius shown)

~ Ci) Sh11f)lngpon Iii~ J J ~ @) RTLA9.690E Wet AKqulp Sample Type Site No. Sector Distance (mllM) Sample Point Description FNd 27 7-SE 6.16 Aliquippa, PA (Brunton Fann) 10* Shippingport, PA 15* Georgetown, PA Food 46* Industry, PA 46* Weirton, Wt/ 2 locations based on hiahest oredicted D/Q Individual garden locations may change based upon availability. The requirements are met as long as one garden is sampled from each of these communities. 2-60 I I I I I I I I I I I I I I I I I I

I I I I .I I I I I I I I I I I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM Figure 2-18 RTLA9.690E Graph of Annual Average Concentration: Cesium-137 in Feedstuff and Foodcrops 100 ~;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;~ I 10+----------------------------1 i ~ I ~ t 0.1---------------------

C.137 (FNMII) -

C:.137 (Feodcrapa) C.137 l'lt-openllDnll Rtdl - C*137 ~ LLD (IO pClqj Wtl I 2-61

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2 - ENVIRONMENTAL MONITORING PROGRAM I. Estimates of Radiation Dose to Man

1. Pathways to Man - Calculation Models RTLA9.690E The radiation doses to man as a result of BVPS operations were calculated for both gaseous and liquid effluent pathways using computer software RADEAS which was newly implemented in 2019. The computer software follows Regulatory Guide 1.109 and site ODCM methodology. Dose factors listed in the ODCM are used to calculate doses from radioactive noble gases in discharge plumes. BVPS effluent data, based on sample analysis were used as the radionuclide activity input.

All batch and continuous gaseous effluent releases were included in the dose assessment calculations. The release activities are based on laboratory analysis. Meteorological data collected by the BVPS Meteorology System was also used as input to the dose assessment. The usage factors were obtained from the BVPS Final Environmental Statements or Regulatory Guide 1.109, except when more recent or specific data was available. All radioactive liquid effluents are released by batch mode after analysis by gamma spectrometry. Each batch is diluted by cooling tower blowdown water prior to discharge into the Ohio River via the main outfall [River Mile 35.0]. The actual data from these analyses are tabulated and used as the radionuclide source term input to the computer software. The usage factors were obtained from the BVPS Final Environmental Statements or Regulatory Guide 1.109, except when more recent or specific data was available. The total doses to an individual were evaluated for all liquid and gaseous effluent pathways.

2. Results of Calculated Dose to Man - Liquid Effluent Releases During the report period, the calculated dose to an individual member of the public from liquid effluent releases is presented in Table 2-5. Also shown in the Table 2-7 is a comparison to natural radiation exposure.

2-62 I I I I I I I I I I I I I I I I I I I

I I .I I I I I I I I I I I I .I I I I I ~ver Valley Power Station RTLA9.690E 2020 Annual Radiological Envt,onm_e~tal O_eerating ~i:_t_ SECTION 2 -ENVIRONMENTAL MONITORING PROGRAM

3. Results of Calculated Dose to Man - Gaseous Effluent Releases During the report period, the calculated dose to an individual member of the public from airborne effluent releases. Also shown in the Table 2-7 is a comparison to natural radiation exposure. The doses include the contribution of all pathways.

4. Conclusions Based upon the estimated dose to individual$ from ~ natural background radiation exposure in Tables i-s and 2-6, the incremental increase in total body dose from the operation ofBVPS - Unit 1 and 2, is 0.05390/o of the ann~ radiation exposure.

The calculated doses to the public from the operation of BVPS - Unit 1 and 2, are below ODCM annual limits and resulted in only a small incremental dose to that which area residents already received as a result of natural background. The doses constituted no meaningful risk to the public. 2-63

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 2-ENVIRONMENTAL MONITORING PROGRAM Table 2-5: Calcnlated Dose to Man Liquid Effluent Releases Comparison of Individual Dote BVPS Uqoid Effluent Releases Veno Natural and Medical Radiation Exposure mllirem BVPS Liquid Effluent Release Dose 0.0230 to.the Total Body United States Ann~l Average 620 Radiation-Ill; Table 2-6: Calculated Dose to Man Gaseous Effluent Release. Comparison of Individual Dose BVPS Gueom Effluent Releases Vemu Natural and Medical Radiation Exposure miilirem BVPS Gueowi Efflnent Release Dose 0.3111 United States Annual Average 620 Radiation Exoosnre 2-64 R1LA9.690E I I I. I I I I I I I I I I I I I I I I

I I I I I I I I I I, I I I I I I I I I Beaver Valley Power Station

o~o Annual Radiological Environmental Operating _Report SECTION 2 -ENVIRONMENTAL MONITORING*PROGRAM

~ '. ~ Table 2-7: Natural and Medical Radiation~ TYPICAL DOSE IQ INDIVIDUAJS FROM RADIATION EXPOSURE <a> = 311 millirem / year RTL;\\9.690E En~losme3 Ubiquitous *backgroWld Intemal, inhalation Internal, ingestion External, space External, terrestrial 228 millirem / yew: 29 millirem / year 33 millirem / year 21 millirem / year Medical CT Nuclear m~cine Interventional fluoroscopy Conventional radiography Consumer = 300 mill,irem / year 14 7 milliI:etn / year 77, ~ / year 43 ni.illirem / year 33' millirem / year = 13 mi1lirem I year Industrial, security, educational, research = 0.3 millirem / yeiµ- Occupational = o.s millirem I year Average Individual = 620 milHrem / year ci;otal frc;,m all so~ shown above) (a) NCRP Report No. 160: Ionizing Radiation Exposure of the Population of the United States." JOW?UJl of Radiological Protection J. Radio/. Prot. 29_.3 (~909) 2-65

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 3 - LAND USE CENSUS R1LA9.690E A. Land Use Census:Oyei:yiew: A Land Use Census was conducted June l through August 31, 2020 tC? comply~= Offsite Dose Calculation Manual procedure l/2-0DC-3.03, "Controls for RETS and REMP Programs", Attachment R, Control 3.12.2, and Surveillance Requirement 4.12.2.1 BVPS REMP procedure 1/2-ENV-04.02, "Milch Animal Sampling Locaiion Determination & OOCM Procedure l/2-ODC-3.03, Control 3.12.2 Action Statements a and-__b, Compliance Determination" The Land Use Census results indicate that there were no changes in the nearest resident, milch cow, garden or doe goat. Therefore, no changes are required to be made in the current Radiological Environmental Monitoring Program (REMP). Table 3-1 summarizes the location of nearest residences, *gardens, milch cows and doe goats. Changes in the methodology for determining meteorological dispersion (X/Q) and deposition (D/Q) resulted in recommended changes to the Offsite Dose Calculation Manual (ODCM) and to the X/Q and D/Q values used in the effluent_ tracking soflware. A comparison of the annual D/Q to ODCM default D/Q is provided in Table 3-2. The Land Use Census is summariz.ed as follows: B. Nearest Residence; The location has not changed since the previous census. The nearest inhabited residence is 209 Ferry Hill Road, Shippingport, PA (0.44 miles, east-northeast). The ODCM default D/Q values for the four release points remained conservative when compared to the new XOQDOQ output. However, several release points (CV 1/2, VV 1/2 and TV 1/2) h~ higher calculated X/Q values that were> 20% of the default ODCM. C. Nearest Garden >500 sq ft: The location has not changed since the previous census. The closest garden location remains the Colaber Residence, 1201 Vrrginia Avenue, Midland, PA (1.03 miles, northwest). ODCM default X/Q and D/Q values were compared to the XOQDOQ output X/Q and D/Q values in which the ODCM values remain conservative. D. Nearest Dairy Cow: The location has not changed since the previous census. The location is not within a five mile radius; however, the closest milking cow location is Brunton Dairy, 3681 Ridge Road, Aliquippa, PA (6.076 miles, southeast). There are no changes in the default ODCM D/Q for the nearest dairy cow milked for ground and elevated releases; however, two of the ground level release points (VV-1/2 and TV-2) had increased X/Q values that were >20% of the default ODCM values. E. Nearest Doe Goat: The location has not changed since the previous census. The location is at the Covert Residence, 930 Pine Street (Route 168), Hookstown, PA (2.131 miles, southwest). The default ODCM X/Q values remained conservative. However, two of the 3-1 I I I I I I I I I ,1 I I I I I I I I I

I I I I I I I I I I I I .I I Beaver Valley Power Station 2~0 Annual Radiological Enviro~ental Operating Report SECTION 3 - LAND USE CENSUS R1LA9.690E ground release points (VV-1/2 and TV-2) D/Q values were >20% of the default ODCM values. F. Prevailing Wmds: The prevailing wind direction for ground releases was identified by sh!):WW& *th~, highest D~Q, in the west ~r. The, prev~g wind direction for elevated releases was identified by showing the highest D/Q in the east-southeast sector. The REMP properly monitors the environment with air particulate sampling stations in some sectors and direct radiation 1LDs in all sectors. G. 2020 Dairy Cow & Doe Goat Sampling Locations: The dairy cow sampling locations will I'CilYUD: at ~ronton Dairy, 3681 Ridge Road, Aliquippa, PA (6.076 mil~s, southeast), and Windsheimer Dairy, 20 Windsheimer Lane, Bmgettstown, PA (10.475 miles, south-southwest). The doe goat sampling location will remain at the Covert Residence, 930 Pine Street (Route 168), Hookstown, PA (2.131 miles, southwest). H. D/0 for Mikh Animal Locations: None of the 2020 milch animal sampling locations experienced a >20% increase in D/Q. Therefore, a Special Report per ODCM procedure l/2-ODC-3.03, Attachment R, Control 3.122 Action "a" and/or Action "b" is not required. L X/0 and D/O for Offsite Dose Determination: A change in methodology for calculating meteorological dispersion {X/Q) and deposition (D/Q) values resulted in some significant differences (>20% change in a non-conservative direction) that will be addressed in the next ODCM revision. The change in meteorology has no bearing on meeting the requirements of Control 3.12.2 Action "a" and/or Action "b". Therefore, a Special Report per ODCM is not required. J. X/0 and D/O Comparison: There is no adverse trend in D/Q when comparing 2009 to 2020 data to the ODCM default D/Q values. However, several locations had higher X/Q values that were >20% of the OD_CM default values. A comp~on of the annu~ D/Q to ODCM default D/Q is provided in Table 3-2. 3-2

I Beaver Valley Power Station RTLA9.690E 2020 Annual Radiological Environmental Operating Report I SECTION 3 - LAND USE CENSUS Table3-1 I Location of Nearest Residences, Gardens, Milch Cows and Doe Goats I DAIRY SECTOR RESIDENCES GARDENS cows DOE GOATS I 0 to 5 miles 0 to 5 miles Oto 5 miles 0 to5 miles (miles) (mila) (miles) (miles) I N 1.60 1.60 None None NNE 1.64 1.74 None None I NE 0.474 239 None None I. ENE 0.438b 1.05 None None E 1.20 2.26 None 3.41 I ESE 0.852 1.24 None None SE 1.50 1.91 None* None 11 SSE 2.11 3.08 None None I s 137 1.48 None None SSW 0.760 1.71 None None I SW 1.46 1.46 None 2.13 I WSW 1.42 2.31 None None w 2.22 2.41 None None I WNW 2.30 2.75 None None NW 0.892 1.03 None None I NNW 0.910 1.27 2.44 None I a Although there are no Dairy Cows within 5 miles in this sector, a large local dairy located at 6.076 miles I. is included in the milk sampling program. b Distance is the nearest location for that receptor. I 3-3 I

I I I I I I I I I I I I I I ,I I .I I I ~ver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 3 - LAND USE CENSUS Table3-2 Co~parison of _Annual D/0 to ODCM Default D/0 Receptor Sector Mode Release ODCM XOQDOQ r Pott. X/Q 'D/Q X/Q D!Q ~ ENE E1evated PVl/2 5.25B-08 1.76E-09 1.50E-09 _8.90B-10 Gromd CVl/2 4.20E-06 3.22E-08 6.l0E-06 2.80E-08 Gromd vv_ 1/2 5.04E-06 3.22E-08 1.l0E-0S 2.00E-08 Grom! tv-2 4.63E-06 3.22E-08 9.80E-06 2.QOE-08 Garden NW Eevated PVl/2 7.40E-09 4.25E-10 4.00E-09 5.40&10 Ground CV 1/2 1.94B-05 1.S0B-08 l.l0E-06 4.20E-09 Gromd w-1a -21>2E-05 1.50&08" 2.60&06 1.s6E-09 Grour:d 1V-2 2.16E-05 1.49E-08 2.S0E-06 7.50B-09 CowMik SE 'Eevated PVl/2 :1-.23E-07 4:66E-i0 8.l0E-09' "7.'60E-ll Grour:d* CV 1/2' 9.94E-08 3.S0E-10' 5.20E-08' 1.40E-10 Gromd VV'l/2 l.03E-07 -350E-10 -3.60E-07 1-.90E-10* Gromd 1V-2 l.02E-07 3.SlE-10 3.40E-07 1.90E-10 GoatMik SW E1evated PVl/2 2.56B-07 6.93E-10 6.60E-09, l.20E-10 Gromd CV 1/.2 9.0SE-07 1.32E-09 8.70E-07 1.3QE-09 Ground VV 1/.2 9.98E-07 1.32E-09 7.5(}E-07 2.00E-09 Grouoo 1V-2 9.55E-07 132E-09 7.20E-07 2.00E-09 3-4 RTI.,,A.9.690E F.nclos-qre 3 Percent Dni,rm;:e X/Q D/Q -97% -49% 45% -13% 118%, -353/4 112% -38% -46% 27% -94% -72% .!9()% -50%, -88% -50% -93%- -84% '-48% -60%

250%

-46% 233% -46% .. 97% -83% -4% -2% -2S% 52% -25% 52%

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 4 - SPLIT SAMPLE PROGRAM and SPIKE SAMPLE INTER-LABORATORY COMPARISON PROGRAM RTI., A9.690E A. Split Sample Program {Inter-Laboratory Comparison, Part 1 of2}; BVPS participates in a ~ ,' 1,l I J 1 Ir split sample prograrii'with the Pennsylvania Department of Environmental Protection (PADEP) in support of their nuclear power plant monitoring program. BVPS provided split samples to PADEP throughout the report period. The shared media and number of locations were typically comprised of milk (1 ), surface water (2), sediment (1 ), fish (1 ), and food crops (2). PADEP has co-located continuous air particulate & air iodine sample stations with four (4) of the BVPS locati~. PADEP has co-located 1LDs with twenty-four (24) of the BVPS 1LDs. B. Spike Sample Program (Inter-Laboratory Comparison, Part 2 of 2}; BVPS participates in a spike sample program with an Independent Laboratory. This program is used to independently verify sample analyses performed by the BVPS Contractor Laboratory.

Acceptance Criteria: The NRC criteria listed in NRC lnspection Procedure 84750, 11/14/19, Inspection Guidance 84750-03 is used as acceptance criteria for comparisons of results of *spiked samples between the Contractor Lab and the Independent Lab. These comparisons are performed by dividing the comparison standard (Independent Lab result) by its associated uncertainty to obtain the resolution. The comparison standard value is multiplied by the ratio values obtained from the following table to find the acceptance band for the result to be compared. However, in such cases in which the counting precision of the standard yields a resolution of less than 4, a valid comparison is not practical, and therefore, not performed.

NRC Criteria Resolution Ratio <4 4-7 0.50-2.00 8 - 15 0.60-1.66 16-50 0.75 - 1.33 51-200 0.80-1.25 >200 0.85 - 1.18 4-1 I I. I I I I I I I I I I I I I I. I I I

I I I I I. I I I I I I I ,I I ,I I I I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 4 - SPLIT ~~LE PROG~. f!lld SPIKE SAMPLE INTER-LABORATORY COMPARISON PRQGRAM R1LA9.690E Participatjo:Q in an Jnter-Laboratory Comparison Program is required by BVPS Unit I and 2 OpGM p~~ l~-ODC-3.03 A~ent S,Control 3.12.3. For the report period, the requirement was met PY !be.Conqactor Lab analyzing NIST traceable spiked samples supplied by ~ ~dependent Lab. Dutjng the report period, BVfS used (Environm~_tal, Inc., Midwest Laboratory - N~brook, IL) as the Contractor Laboratory, and (Eckert & Ziegler Analytics - Atlanta, GA) as ~e Independent Laboratory. The spiked samples included air parti~ulate filter papers, charcoaj cartridges, water samples, and milk samples. The samples were submitted by the Independent Laboratory to the ~~tractor. Laboratory for ~sis. The "spik~ to" values were used for calculating comparison A~ptance Criteria. Spiked Milk & Water Samples: The spiked sample results (i.e. the BVPS criteria) for each calen~ quarter are repo~ in Table 4-1 through Table 4-4, respectively. The following summary is provided: A total of forty-eight ( 48) gamma spectrometry radionuclide analyses were performed by the Contractor Laboratory on four (4) milk samples. A total of forty-eight ( 48) gamma spectrometry radionuclide analyses were performed by the Contractor Laboratory on four (4) water samples. / A total of four (4) chemical analyses for 1-131(cheinical) were performed by the Contractor Laboratory on four ( 4) milk samples. A total *of three (3) chemical analyses for 1-131 were performed on three (3) of the four (4) samples. A total of four ( 4) 1-131

analyses were performed by the Contractor Laboratory on four (4) water samples. A total of three (3) chemical analyses for 1-131 were performed on three (3) of the four (4) samples.

A total of four ( 4) tritium analyses were performed by the Contractor Laboratory on four ( 4) water samples. Comparison of results of the spiked milk and water samples showed acceptable agreement with the NRC acceptance criteria. A total of one hundred six (106) analyses were performed in 2020. One hundred five (I 05) analyses met the NRC acceptance criteria and one analysis deviated. 4-2

Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 4 - SPLIT SAMPLE PROGRAM and SPIKE SAMPLE INTER-LABORATORY COMPARISON PROGRAM R1LA9.690E

Enclosure 3 Furthermore, the first quarter environmental cross check results indicated that Strontium-90 (milk and water) as well as Zinc-65 (water) failed the acceptance criteria as listed in the NRC Inspection Procedure 84750, 11/14/19, Inspection Guidance 84750-03. The vendor laboratory was immediately notified of the failures and was requested to perform re-analysis. The results from the re-analysis for Strontium-90 (water) and Zinc-65 (water) passed the acceptance criteria whereas Strontium-90 (milk) failed. The re-analysis for Strontium-90 in milk had a yielded ratio of 0.79 and the acceptance criteria is 0.80 - 1.25. The yielded ratio is the percent of the true value of the sample. This result indicated that the Strontium-90 result is biased low for milk, just below the acceptance criteria. (CR-2020-04804).

The second quarter environmental cross check results indicated that Chromium-51 (water) failed the acceptance criteria as listed in the NRC Inspection Procedure 84750, 11/14/19, Inspection Guidance 84750-03. The vendor laboratory was immediately notified of the failure and was requested to perform re-analysis. The result of the re-analysis result passed the acceptance criteria. The vendor laboratory was also notified of the omission oflodine-131 by gamma. The vendor stated that the I-131 by gamma result was inadvertently left out and going forward the result would be included. Accordingly, the vendor reviewed the instrument performance/quality control charts, environmental conditions and data qualification in accordance with their Quality Assurance Manual and performed re-analysis upon request A discussion was held with the Quality Assurance Manager and human error is to blame for the Chromium-51 failure and result omittance. As for the Chromium-51 failure, a staff member incorrectly typed the result in the reporting system thus alluding to a typographical error. The Quality Assurance Manager is currently working on automating the manual entry reporting process to alleviate the human errors. (CA-2020-04804-01)

Spiked Filter Paper and Charcoal Cartridge Samplesi The spiked sample results for each calendar quarter are reported in Table 4-1 through Table 4-4, respectively. The following summary is provided:

Gross Beta ( cesium-13 7) analyses were performed by the Contractor Laboratory on two (2) filter paper samples. Iodine-131 analyses were performed by the Contractor Laboratory on two (2) charcoal cartridge samples. 4-3 I I. I I I I I 1_ I I I I I I I I I I I

I I I I I. I I .I I I I I .I .I I I I I. I ~ver Valley Power Station 2~ Annual Radiological EnviroDn1ent:al ~rating ~port SECTION 4 - SPLIT SAMPLE. PROGRAM and SPIKE SAMPLE INTER-LABORATORY.COMPARISON PROGRAM ~ j, RTLA9:~90E Comparison of results of the spiked filter paper and charcoal cartridge samples showed acceptable agreement with the NRC acceptance criteria. All four (4) analyses perfo~- by The Cohtractor Labo~ry met ilie *NRc ~ criteria. C. Cog;clg1'iolJS :*. *.

Results of Split Sampie Prograpi: The split ~le program is coordinated by the state, t

ahd the results are not included in this report. Results of Spike S~pl~- Program: Based. on the Inter-Laboratory comparison data, BVPS.. <<>nsidets.all :~yse~ pi-ovided *throughout the rep6rt period by the Contractor Laooratctj to *1,e acceptable with respect to both accuracy and measurement. A co~~on of.the data is-~vid~ in 1he *following._tables.'* A total of one hundred six (10§) ~yses w~ perfoiin'ed in ~ch 9~e hun~ Ji_ye. (105) analyses met the NRC acceptance criteri&. Furthermore, one deviation was exhibited in the Strontium-90 analysis_ in the :6rst quarter of '2020. The re-analysis for Strontium-90 in milk had a yielded ratio of 0.79 and the acceptance criteria is 0.80 - 1:25. The yiel~ed ratio is the percent of the true value of the sample. This result indicated that the Strontium-90 result is biased low for milk, just below the acceptance criteria. 4-4

Beaver Valley Power Station RTL A9.690E 2020 Annual Radiological Environmental Operating Report SECTION 4 - SPLIT-SAMPLE PROGRAM and SPIKE SAMPLE INTER-LABORATORY 00MP.Alus-0N PROGRAM' lnter-l..aboratol)' Comparison Program Spiked~~ -1 81 ~ Sample Data, Type and Resolution RNOlutlon Required Ratio Env Inc: -~parlson Identification No. Ratio Band A~ Sr-89 60 0.80-1.25 0.98 AGREEMENT Sr-:9() ~ 0.80,-,1.25 0.88 A~REEMENT 1-131 cc"HM)

eo o~so~*q5 i~

AGREEMENT 1-131 60 0.80-1.26 1.03 AGREEMENT 03/12/20 Ce-141 60 0.80-1.25 0.99 AGREEMENT 0.80 ;.c1.26, Cr-51 60-1.03 AGREEMENT Water Cs,:.134 60 0.80- t'26 - 0.90 AGREEMENT Ind Lab: E13146 es,:137 60 0.80--1.25 1.00 AGREEMENT Con. Lab: SPW-726 Co-58 60 0.1;1() - 1.26 1.01 AGREEMENT Mn-54 60 o.ap" 1.26 1.~ AGREEMENT Fe-,59, 60 0.80-1.25 1.06. AGREEMENT Zn-66 60 0.80-1.25 1.12 AGREEMENT Co-80 60 0.80-1.25 1.02 AGREEMENT 03/12/20 Water Ind. Lab: E13144 H-3 60 0.80-1.25 0.99 AGREEMENT Con. Lab: SPW-724 Sr-89 60 0.80-1.25 0.91 AGREEMENT Sr..Q() 60 0.80-1.25 0.79 DISAGREEMENT 1-131 (CHM) 60 0.80-1.25 1.09 AGREEMENT 1-131 60 0.80-1.25 1.00 AGREEMENT 03/12/20 Ce-141 60 0.80-1.25 0.99 AGREEMENT MIik Cr-51 60 0.80-1.25 1.13 AGREEMENT Ind. Lab. E13146 Cs-134 60 0.80-1.25 0.90 AGREEMENT Cs-137 60 0.80-1.25 1.02 AGREEMENT Con. Lab: SPMl-728 60 0.80-1.25 1.01 AGREEMENT Co-58 Mn-54 60 0.80-1.25 1.02 AGREEMENT Fe-59 60 0.80-1.25 1.08 AGREEMENT Zn-65 60 0.80-1.25 1.02 AGREEMENT Co-60 60 0.80-1.25 1.04 AGREEMENT 03/12/20 Filter Paper Cs-137 60 0.80-1.25 1.00 AGREEMENT Ind. Lab: E13147 (Gross Beta) Con. Lab: SPAP-730 03/12/20 Charcoal Cartridge 60 0.80-1.25 1.07 AGREEMENT Ind. Lab: E13148 1-131 Con. Lab: SPCH-732 4-5 I I I I I I 1_ I I I I I I I,, I I I

I I I I I _I I I _I I ~v<<-'r Y alley Power Station 2020 A:nnual Radiological Environmental Operating Report SECTION 4 -,SPLIT SAMPLE PROGRAM and SPIKE SAMPLE ~ C ~ 4 INTER-LABORATORY COMP ~ON PRQGRAM Table-4-2 lnter-Labo_ratory_ Com~ Progl'Ml Spiked Samplee,.. :z-i Quarter R1LA9.690E Sample Date, Type and Resoll.1llon - Resolution _ -.:Requlr:eq Ratio Env Inc: - ;_.~n Identification No. - "Ratio Ba'nd An~"* C Sr-89* 60 0.80 - 1.25 " 0.96 AGREEMENT Sr-90 60 _0.~- 1.25 0.92 AGREEMENT 1-131 (CHM) 60 0.80-,1.25 1.09 AG~ENT 1-13-1 60 0.80-1.25. NA NA C&-141 ,60 0.80-1:25. 0.98 .AGRE.EM~ 08I04l20 0.80 - 1.25.-, _. 0.99 _ ~GREEMENT ,Cr-51 60 ,Water Ca-134 ,60 0.80_-1.:25 0.85 AGREEMENT lr:,d Lab: E13150 Cs-137 60 o.~-1.25 1.02 'AGREEMENT Con. Lab: SPW-1856 Co-58

so 0.80-1~5 1.02

-: A(3REEMENT Mn-54 60 0.80-1.25 1.05 AGREEMENT Fe-69' 60 0.80-_1.25 1.09 AGREEMENT Zn-65 60 0.80-1.25 1.13 AGREEMENT Co-60 60 0.80-1.25 I 1.01 AGREEM~!'ff 06/04/20 Water Ind. Lab: E13149 H-3 60 0.80-1.26 1.03 AGREEMENT Con. Lab: SPW-1854 Sr-89 60 0.80-1.26 1.02 AGREEMENT Sr..QO 60 0.80-1.26 0.96 AGREEMaf.r 1-131CCHMl 60 o.~ -1.2s 1.10 AGREEMENT 1-131, 60 0.80-1.45 NA NA 06/04/20 r..... 141 60_ 0.80-,1.25 0.90

'AGREEMENT M!lk Cr-61 60 o.~-1.25 -

0.84 - 'AGREEMENT lnci. Lab: E13151 Cs-134 60 Q.80 -. 1.25 - 0.86 AGREEMENT Cs-137 60 0.&Q-1.~5 0.96 AG~ENT Con. Lab: SPMl-1858 Co-58 60 p.80-1._25 1.04 AGREEMENT Mn-54 60 0.80-1.25, 1.02 AGREEMENT Fe-59 60 0.80-1.~5 1.07 AGREEMENT Zn-65 60 0.80-1.26 1.06 AGREEMENT Co-60 60 0.80-1-4~ 1.00 AGREEMENT 4-6

I Beaver Valley Power Station RTL A9.690E 2020 Annual Radiological Environmental Operating Report

1.

SECTION 4 - SPLIT SAMPLE PROGRAM and SPIKE SAMPLE INTER-LABORATORY COMPARISON PROGRAM I Table4-3 Inter-Laboratory Comparison Program Splud Samplea - 3"' Quarter Sample Date, Type and Resol_~n Resolution Required Ratio Env Inc: . Identification No. Ratio Band Analytlcs Sr-89 60 0.80-1.25 0.98 Sr-90 60 0.80-1.25 1.04 1-131 (CHM) 60 0.80-1.25 1.03 1-13*1 60 0.80-1.25 1.08 Ce-141 60 0.80-1.25 1.02 09/10/20 1.09 -Cr-51 60 0.80-1.25 Water Cs-134 60 0.80-1.25 0.95 Incl Lab: E13153 Ca-137 60 0.80-1.26 1.04 Con. Lab: SPW-3229 Co-58 60 0.80-1.25 1.04 Mn-54 60 0.80-1.26 1.08 Fe-59 ,60 0.80-1.25 1.09 Zn-66 60 0.80-1.25 1.05 Co-60 60 0.80-1.26 1.01 09/10/20 Water Ind. Lab: E13152 H-3 60 0.80-1.26 1.01 Con. Lab: SPW-3227 Sr-89 60 0.80-1.25 0.90 Sr..QO 60 0.80-1.26 0.88 1-131 (CHM) 60 0.80-1.25 1.04 1-131 60 0.80-1.26 1.05 09/10/20 Ca-141 60 0.80-1.25 1.01 MIik Cr-51 60 0.80-1.26 1.16 Incl. Lab: E13154 Cs-134 60 0.80-1.26 0.90 Cs-137 60 0.80-1.25 1.01 Con. Lab: SPMl-3231 60 0.80-1.25 0.94 Co-58 Mn-54 60 0.80-1.25 1.03 Fe-69 60 0.80-1.25 1.09 Zn-66 60 0.80-1.25 0.99 Co-60, 60 0.80-1.25 0.97 09/10/20 Fftter Paper Cs-137 60 0.80-1.25 0.86 Incl. Lab: E13166 (Gross Beta) Con. Lab: SPAP-3233 09/10/20 Charcoal Cartridge 60 0.80-1.26 1.05 Ind. Lab: E13166 1-131 Con. Lab: SPCH-3235 4-7 ~tison AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT A~ENT 'AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT I, I I I I I, I I,, I I I

I I I I I I I I I I. I. I ,I I I .I. I I Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report SECTION 4 - SPLIT SAMPLE PROGRAM and SPIKE SAMPLE INTER-LABORATORY COMPARISON PROGRAM Table~ lnter-Labonltory Comparison Program Splbd 8amplN - 4'11 Quarter Sample Date, Type and Resolution Resolution Required Ratio Env Inc: Identification No. RatloBand Analytlcs Sr-89 60 0.80-1.25 0.96 Sr-90 60 0.80-1.25 1.01 1-131 (CHM) 60 0.80-1.25 0.97 1-131 60 0.80-1.25 1.09 C.141 eo o.so*- 1.25 0.93 12/03/20 0.80-1.25 0.98 Cr-51 60 Water Ce-134 60 0.80-1.25 0.96 Ind Lab: E13158 Cs-137 60 0.80-1.26 1.04 Con. Lab: SPW-4489 Co-68 60 0.80-1.25 1.07 Mn-54 60 0.80-1.25 1.12 Fe-59 60 0.80-1.25 1.05 Zn-65 60 0.80-1.25 1.05 Co-60 60 0.80-1.26 1.05 12l03/20 Water H-3 60 0.80-1.25 0.98 Ind. Lab: E13157 Con. Lab: SF'W-4487 Sr-89 60 0.80-1.25 0.91 Sr-M 60 0.80-: 1.25 0.80 1-131 (CHMl 60 0.80-1.25 1.05 1-131 60 0.80-1.25 1.06 12/03/20 Ce-141 60 0.80-1.25 0.94 Cr-51 60 0.80-1.25 1.02 MIik Cs-134 60 0.80-1.25 0.94 Incl. Lab: E13159 Cs-137 60 0.80 -1.25 1.05 Con. Lab: SPMl-4491 Co-58 60 0.80-1.25 1.02 Mn-64 60 0.80-1.25 1.09 Fe-69 60 0.80-1.25 1.08 Zn-65 60 0.80-1.25 1.03 Co-60 60 0.80-1.25 1.01 4-8 R1LA9.690E Comparison AGREEMENT AGREEMENT AGREEMENT AGREEMENT AG~ AGREEMENT AGREEMENT AGREEMENT A~ AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGREEMENT AGRE~ENT A~ AGREEMENT AGREEMENT AGREEMENT AGREEMENT

1, .1 I I 1, I I I I I. I I ,I .I I I. I: .I 1, Beaver Valley Power Station 2020 Annual Radiological Environmental Operating Report R1LA9.690E

Enclosure 3 SECTION 5 - CORRECTIONS TO PREVIOUS RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT(S)

A. Correctiom to Pmiogs Radiolegigl Enviromnental Operating Report<*>= Th.ere are no corrections to be ~ for the previous report. 5-1}}

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