ML22119A292

From kanterella
Jump to navigation Jump to search
Independent Spent Fuel Storage Installation - Annual Radioactive Effluent Release Report 2021
ML22119A292
Person / Time
Site: Palo Verde  Arizona Public Service icon.png
Issue date: 04/29/2022
From: Gil K
Arizona Public Service Co
To:
Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
102-08431 KJG/MSC
Download: ML22119A292 (76)
v • d • e


Text

Technical Specification 5.6.3 Technical Requirements Manual 3.7.102.4 Palo Verde Nuclear Generating Station PO Box 52034 102-08431 KJG/MSC Phoenix, AZ 85072 Mail Station 7636 April 29, 2022 Tel (623) 393-2488 ATTN: Document Control Desk U.S. Nuclear Regulatory Commission Washington, DC 20555-0001

Subject:

Palo Verde Nuclear Generating Station (PVNGS) Units 1, 2, 3, and Independent Spent Fuel Storage Installation Renewed Operating License Nos. NPF-41, NPF-51, and NPF-74 Docket Nos. STN 50-528, STN 50-529, STN 50-530, and STN 72-44 Annual Radioactive Effluent Release Report 2021 Enclosed please find the PVNGS Units 1, 2, and 3 Annual Radioactive Effluent Release Report for 2021. Arizona Public Service Company is submitting this report pursuant to the PVNGS Technical Specification Reporting Requirement, Section 5.6.3. The report also includes details regarding radioactive effluent releases from the PVNGS Independent Spent Fuel Storage Installation.

PVNGS Technical Requirement Manual, Section 3.7.102.4 requires an annual report to be prepared and submitted if sealed source or fission detector leakage tests reveal the presence of greater than or equal to 0.005 microcuries of removable contamination. There were no events in 2021 that met this reporting threshold.

No new commitments are being made to the Nuclear Regulatory Commission (NRC) by this letter.

Should you need further information regarding this submittal, please contact Matthew S.

Cox, Licensing Section Leader, at (623) 393-5753.

Sincerely, Digitally signed by Gil, Katherine J(Z05492)

Date: 2022.04.29 10:42:19 -07'00' Katherine J. Gil Director, Nuclear Regulatory Affairs KJG/MSC/mg

Enclosure:

Palo Verde Nuclear Generating Station Units 1, 2, and 3 2021 Annual Radioactive Effluent Release Report cc: S. A. Morris NRC Region IV Regional Administrator S. P. Lingam NRC NRR Project Manager for PVNGS L. N. Merker NRC Senior Resident Inspector for PVNGS B. Goretzki Arizona Department of Health Services - Bureau of Radiation Control A member of the STARS Alliance LLC Callaway

  • Diablo Canyon
  • Palo Verde
  • Wolf Creek

Enclosure Palo Verde Nuclear Generating Station Units 1, 2, and 3 2021 Annual Radioactive Effluent Release Report

PALO VERDE NUCLEAR GENERATING STATION UNITS 1, 2 AND 3 2021 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT USNRC Docket No. STN 50-528/529/530 RCTSAI 1566 Digitally signed by Podgurski, Craig Podgurski, Craig J(Z99682)

Prepared by: J(Z99682) Date: 2022.04.25 18:23:59

-07'00' Digitally signed by Bungard, Bungard, James James P(Z18012)

Reviewed by: P(Z18012) Date: 2022.04.25 19:08:47

-07'00' Grusecki, Lori Digitally signed by Grusecki, Lori J(Z39643)

Approved by: J(Z39643) Date: 2022.04.26 07:12:34 -07'00'

TABLE OF CONTENTS INTRODUCTION .................................................................................................................................................... 2 1.0 REGULATORY LIMITS ................................................................................................................................ 2 2.0 MAXIMUM PERMISSIBLE CONCENTRATIONS .......................................................................................... 4 3.0 AVERAGE ENERGY .................................................................................................................................... 4 4.0 MEASUREMENTS AND APPROXIMATIONS OF TOTAL RADIOACTIVITY IN GASEOUS EFFLUENTS ............ 4 5.0 BATCH RELEASES ...................................................................................................................................... 5 6.0 ABNORMAL RELEASES .............................................................................................................................. 5 7.0 OFFSITE DOSE CALCULATION MANUAL AND PROCESS CONTROL PROGRAM (PCP) REVISIONS ............. 5 8.0 EFFLUENTS AND SOLID WASTES .............................................................................................................. 5 9.0 MISCELLANEOUS INFORMATION ............................................................................................................. 5 10.0 METEOROLOGICAL DATA ......................................................................................................................... 7 11.0 DISCUSSION .............................................................................................................................................. 7 APPENDIX A: EFFLUENT AND WASTE DISPOSAL REPORTS................................................................................. 10 APPENDIX B: DOSE CALCULATIONS.................................................................................................................... 58 APPENDIX C: NEI 07-07 GROUNDWATER PROTECTION INITIATIVE SAMPLING................................................. 67 APPENDIX D: ADJUSTED 2021 PERMITS ............................................................................................................. 71 LIST OF TABLES Table 1: Evaporation Pond Data......................................................................................................................... 11 Table 2: Batch Release Data ............................................................................................................................... 11 Table 3: Units 1, 2, and 3 Gaseous Effluents Average Lower Limit of Detection (Ci/cc) ................................. 12 Table 4: Unit 1 Gaseous Effluents (Summation Of All Releases) ....................................................................... 13 Table 5: Unit 1 Gaseous Effluents - Ground Level Releases - Continuous - Fission Gases and Iodines ............. 14 Table 6: Unit 1 Gaseous Effluents - Ground Level Releases - Continuous - Particulates ................................... 15 Table 7: Unit 1 Gaseous Effluents - Ground Level Releases- Batch - Fission Gases and Iodines ....................... 16 Table 8: Unit 1 Gaseous Effluents - Ground Level Releases - Batch - Particulates ............................................ 17 Table 9: Unit 1 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines.................................... 18 Table 10: Unit 1 Gaseous Effluents - Continuous and Batch - Particulates ....................................................... 19 PVNGS ARERR 2021 Page ii

Table 11: Unit 1 Radiation Doses At And Beyond The Site Boundary................................................................ 20 Table 12: Unit 2 Gaseous Effluents - Summation Of All Releases ...................................................................... 21 Table 13: Unit 2 Gaseous Effluents - Ground Level Releases - Continuous - Fission Gases and Iodines ............ 22 Table 14: Unit 2 Gaseous Effluents - Ground Level Releases - Continuous - Particulates .................................. 23 Table 15: Unit 2 Gaseous Effluents - Ground Level Releases - Batch - Fission Gases and Iodines ..................... 24 Table 16: Unit 2 Gaseous Effluents - Ground Level Releases - Batch - Particulates ........................................... 25 Table 17: Unit 2 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines .................................. 26 Table 18: Unit 2 Gaseous Effluents - Continuous and Batch - Particulates ........................................................ 27 Table 19: Unit 2 Radiation Doses At And Beyond The Site Boundary ................................................................ 28 Table 20: Unit 3 Gaseous Effluents - Summation Of All Releases ...................................................................... 29 Table 21: Unit 3 Gaseous Effluents - Ground Level Releases - Continuous - Fission Gases and Iodines ............ 30 Table 22: Unit 3 Gaseous Effluents - Ground Level Releases - Continuous - Particulates .................................. 31 Table 23: Unit 3 Gaseous Effluents - Ground Level Releases - Batch - Fission Gases and Iodines ..................... 32 Table 24: Unit 3 Gaseous Effluents - Ground Level Releases - Batch - Particulates ........................................... 33 Table 25: Unit 3 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines .................................. 34 Table 26: Unit 3 Gaseous Effluents - Continuous and Batch - Particulates ........................................................ 35 Table 27: Unit 3 Radiation Doses At And Beyond The Site Boundary ................................................................ 36 Table 28: Units 1, 2 and 3 Gaseous Effluents - Continuous - Fission Gases and Iodines - Total By Quarter ....... 37 Table 29: Units 1, 2 and 3 Gaseous Effluents - Continuous - Particulates - Total By Quarter ............................. 38 Table 30: Units 1, 2 and 3 Gaseous Effluents - Batch - Fission Gases and Iodines - Total By Quarter ................ 39 Table 31: Units 1, 2 and 3 Gaseous Effluents - Batch - Particulates - Total By Quarter ...................................... 40 Table 32: Units 1, 2 and 3 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines - Total By Quarter ....................................................................................................................... ........................................ 41 Table 33: Units 1, 2 and 3 Gaseous Effluents - Continuous and Batch - Particulates - Total By Quarter ............ 42 Table 34: Units 1, 2 and 3 Gaseous Effluents- Continuous - Fission Gases and Iodine -Total By Unit ................ 43 Table 35: Units 1, 2 and 3 Gaseous Effluents- Continuous - Particulates - Total By Unit ................................... 44 Table 36: Units 1, 2 and 3 Gaseous Effluents- Batch - Fission Gases and Iodine - Total By Unit ........................ 45 Table 37: Units 1, 2 and 3 Gaseous Effluents- Batch - Particulates - Total By Unit ............................................. 46 Table 38: Units 1, 2 and 3 Gaseous Effluents- Continuous and Batch - Fission Gases and Iodine - Total By Unit

.............................................................................................................................. .............................................. 47 Table 39: Units 1, 2 and 3 Gaseous Effluents - Continuous and Batch - Particulates - Total By Unit ................ 48 Table 40: Estimation of Total Percent Error ....................................................................................................... 49 Table 41: Effluent Monitoring Instrumentation Out of Service Greater Than 30 Days ..................................... 49 Table 42: Solid Waste Summary ........................................................................................................................ 50 Table 43: Doses to Special Location (EIC) ........................................................................................................... 61 Table 44: Integrated Population Dose (rem) ..................................................................................................... 62 Table 45: Summary of Individual Doses for 2021 Radiation Doses At And Beyond The Site Boundary ............ 66 Table 46: 2021 NEI 07-07 Ground Water Protection Initiative PVNGS Well Data ............................................. 69 Table 47: Adjusted 2021 Permits ....................................................................................................................... 72 PVNGS ARERR 2021 Page iii

INTRODUCTION This report meets the annual report requirements of 10 CFR 50.36a(a)(2) and summarizes the effluent and waste disposal source term data, meteorological data, and dose to members of the public from radioactive effluents for the Palo Verde Nuclear Generating Station (PVNGS) during the period of January through December 2021. Included in the report are tables that demonstrate compliance with the PVNGS Offsite Dose Calculation Manual (ODCM), 10 CFR 50.36a, and 10 CFR 50 Appendix I. The data presented in the report meets the format described in Regulatory Guide 1.21, Measuring, Evaluating, and Reporting Radioactivity in Solid Waste and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water-Cooled Nuclear Power Plants, Revision 1. The report summarizes the quantities of gaseous effluents released from each PVNGS unit and waste disposed of from PVNGS. Because PVNGS does not have a liquid effluent pathway, no liquideffluents are summarized.

1.0 REGULATORY LIMITS 1.1 Liquid Releases 1.1.1 PVNGS ODCM Requirement 3.2 The concentration of radioactive material discharged from secondary system liquid waste to the circulating water system shall be limited to:

5.0E-07 Ci/ml for principal gamma emitters (except Ce-144) 3.0E-06 Ci/ml for Ce-144 1.0E-06 Ci/ml for I-131 1.0E-03 Ci/ml for H-3 The concentration of radioactive material discharged from secondary system liquid waste to the onsite evaporation ponds shall be limited to:

2.0E-06 Ci/ml for Cs-134 2.0E-06 Ci/ml for Cs-137 The concentrations specified in 10 CFR Part 20.1001-20.2402, Appendix B, Table 2, Column 2, for all other isotopes.

1.1.2 PVNGS ODCM Requirement 4.4 The dose or dose commitment to a MEMBER OF THE PUBLIC from radioactive materials in liquid effluents released, from each reactor unit, to areas at and beyond the SITE BOUNDARY shall be limited:

a. During any calendar quarter to less than or equal to 1.5 mrem to the total body and to less than or equal to 5 mrem to any organ, and
b. During any calendar year to less than or equal to 3 mrem to the total body and to less than or equal to 10 mrem to any organ.

PVNGS ARERR 2021 Page 2

1.2 Gaseous Releases 1.2.1 PVNGS ODCM Requirement 3.1 The dose rate due to radioactive materials released in gaseous effluents from the site shall be limited to the following:

a. For noble gases: Less than or equal to 500 mrem/yr to the total body and less than or equal to 3,000 mrem/yr to the skin, and
b. For I-131 and I-133, for tritium, and for all radionuclides in particulate form with half-lives greater than 8 days: Less than or equal to 1,500 mrem/yr to any organ.

1.2.2 PVNGS ODCM Requirement 4.1 The air dose due to noble gases released in gaseous effluents, from each reactor unit, to areas at and beyond the SITE BOUNDARY shall be limited to the following:

a. During any calendar quarter: Less than or equal to 5 mrad for gamma radiation and less than or equal to 10 mrad for beta radiation and,
b. During any calendar year: Less than or equal to 10 mrad for gamma radiation and less than or equal to 20 mrad for beta radiation.

1.2.3 PVNGS ODCM Requirement 4.2 The dose to a MEMBER OF THE PUBLIC from iodine-131, iodine-133, tritium, and all radionuclides in particulate form with half-lives greater than 8 days in gaseous effluents released, from each reactor unit, to areas at and beyond the SITE BOUNDARY shall be limited to the following:

a. During any calendar quarter: Less than or equal to 7.5 mrem to any organ and,
b. During any calendar year: Less than or equal to 15 mrem to any organ.

1.2.4 PVNGS ODCM Requirement 4.3 The GASEOUS RADWASTE SYSTEM and the VENTILATION EXHAUST TREATMENT SYSTEM shall be used to reduce radioactive materials in gaseous waste prior to their discharge when the projected gaseous effluent air doses due to gaseous effluent releases, from each reactor unit, from the site, when averaged over 31 days, would exceed 0.2 mrad for gamma radiation and 0.4 mrad for beta radiation. The VENTILATION EXHAUST TREATMENT SYSTEM shall be used to reduce radioactive materials in gaseous waste prior to their discharge when the projected doses due to gaseous effluent releases, from each reactor unit, to areas at and beyond the SITE BOUNDARY when averaged over 31 days, would exceed 0.3 mrem to any organ of a MEMBER OF THE PUBLIC.

PVNGS ARERR 2021 Page 3

1.3 Total Dose 1.3.1 PVNGS ODCM Requirement 5.1 The annual (calendar year) dose or dose commitment to any MEMBER OF THE PUBLIC due to releases of radioactivity and to direct radiation from uranium fuel cycle sources shall be limited to less than or equal to 25 mrem to the total body or any organ, except the thyroid, which shall be limited to less than or equal to 75 mrem.

2.0 MAXIMUM PERMISSIBLE CONCENTRATIONS Air: Release Concentrations are limited to dose rate limits described in Section 1.2 of this report.

3.0 AVERAGE ENERGY The average energy ( ) of the radionuclide mixture in releases of fission and activation gases is not applicable to PVNGS.

4.0 MEASUREMENTS AND APPROXIMATIONS OF TOTAL RADIOACTIVITY IN GASEOUS EFFLUENTS For continuous releases, sampling is in accordance with PVNGS ODCM Table 3-1. Particulate and iodine radionuclides are sampled continuously at the Plant Vent and Fuel Building exhaust points. The particulate filters and charcoal cartridges are exchanged for analysis at least four times per month. Noble gas and tritium are sampled at least once per 31 days.

The hourly average Radiation Monitoring System (RMS) effluent monitor readings are used, when available, to account for increases and decreases in noble gas concentrations between noble gas grab samples. The tritium concentration is assumed constant between sampling periods.

For batch releases, sampling is also in accordance with PVNGS ODCM Table 3-1. For containment purges, the noble gas concentration may be adjusted to account for decreases or increases in concentration during the purge using RMS readings. The volume of air released during the purge is determined using the exhaust fan rated flow rate. For Waste Gas Decay Tank releases, the volume released is corrected to standard pressure.

Effective January 1, 2004, Containment Purge release permits are updated by removing the permit pre-release particulate and iodine activity. This eliminates double accounting for the Containment Purge particulate and iodine activity at the Plant Vent but allows the particulate and iodine activity to be included in the Containment Purge pre-release dose projection.

The Lower Limit of Detection (LLD) of a measurement system is defined in Table 3 - 1 of the PVNGS ODCM. An average LLD for each radionuclide is provided in Table 3.

PVNGS ARERR 2021 Page 4

5.0 BATCH RELEASES 5.1 Gaseous Batch release durations are presented in Table 2.

5.2 Liquid None.

6.0 ABNORMAL RELEASES None.

7.0 OFFSITE DOSE CALCULATION MANUAL AND PROCESS CONTROL PROGRAM (PCP) REVISIONS 7.1 There were no revisions to the Offsite Dose Calculation Manual (ODCM) in 2021.

7.2 There were no revisions to the Process Control Program (PCP) in 2021.

8.0 EFFLUENTS AND SOLID WASTES 8.1 Gaseous Effluents 8.1.1 Gaseous effluent information is presented in Table 1 through Table 41.

Included in these tables are summaries of the effluents and estimated total error.

8.2 Liquid Effluents 8.2.1 There were no liquid effluent releases beyond the site boundary from PVNGS.

8.3 Solid Waste 8.3.1 Solid Waste Shipments are summarized in Appendix A.

9.0 MISCELLANEOUS INFORMATION 9.1 EVAPORATION PONDS Releases made to the Evaporation Ponds are limited to the concentrations specified in PVNGS ODCM Requirement 3.2. The Evaporation Ponds were monitored in accordance with PVNGS ODCM Requirement 6.1.

The historical average evaporation rate is approximately 12 inches per pond for the first and fourth quarters, and 33 inches per pond for the second and third quarters. Evaporation Pond One is approximately 261 acres which is divided into three segments: Pond 1A (131 acres), Pond 1B (77.5 acres) and Pond 1C (52.5 acres). This equates to an evaporation rate from Pond One of 3.22E+11 cc for the first and fourth quarters, and 8.85E+11 cc evaporated for the second and third quarters. Evaporation Pond Two is approximately 232 acres which is divided into three segments: Pond 2A (117 acres), Pond 2B (87 acres) and Pond 2C (30 acres). Pond 2C is utilized as a sludge pond and water level is maintained PVNGS ARERR 2021 Page 5

to ensure adequate dust control. Pond 2C is not a mandatory sampling location; however, sampling is occasionally conducted for informational purposes.

Evaporation rates for Pond 2C are conservative because the water distribution and depth are assumed to include the entire pond. The evaporation rate from Pond Two is 2.89E+11 cc for the first and fourth quarters, and 7.97E+11 cc for the second and third quarters.

Evaporation Pond Three is constructed of two smaller ponds of 90 acres each (3A and 3B). The evaporation rate from Pond Three is 2.20E+11 cc for the first and fourth quarters, and 6.04E+11 cc for the second and third quarters.

Using a site boundary X/Q of 5.0E-05 sec/m3 for the evaporation ponds and equation 4-3 from the ODCM, the dose from the evaporation ponds to a hypothetical individual at the site boundary, for all pathways, is summarized in Table 1.

9.2 RADIATION MONITORING SYSTEM SETPOINT VERIFICATION Current effluent monitor noble gas channel alert alarm set points are based on an assumed one percent failed fuel source term. The current method used for the set point values are more reliable than basing the set points upon the constantly varying values of the actual noble gas source term presented in Table 38.

9.3 RCS RADIOIODINE (TRM T5.0.600)

There were no cases where primary coolant specific activity exceeded the Technical Specification 3.4.17 limits during the reporting period.

9.4 INDEPENDENT SPENT FUEL STORAGE INSTALLATION (ISFSI)

There are no radioactive effluents from the NAC-UMS and NAC-MAGNASTOR Systems. Direct dose at the Site Boundary is reported in the Annual Radiological Environmental Operating Report.

9.5 MAJOR CHANGES TO THE RADIOACTIVE WASTE SYSTEMS (liquid, gaseous, and solid).

None.

9.6 NEI 07-07, Industry Groundwater Protection Initiative Sample results from the groundwater wells that are not described in the ODCM as part of the REMP (NEI 07-07, Industry Groundwater Protection Initiative, August 2007), are included in Appendix C. This initiative provides added assurance that ground water will not be adversely affected by PVNGS operations.

There were no NEI 07-07 reportable leaks or spills. There were no positive sample results, and all samples results were below the Lower Limit of Detection.

PVNGS ARERR 2021 Page 6

9.7 REPORT ADDENDUM None.

10.0 METEOROLOGICAL DATA The data recovery for the reporting period was 99.5 percent. The predominant wind direction was from the southwest approximately 15.5 percent of the time. The predominant stability class was stability class "G" approximately 23.1 percent of the time. Average wind speed during the reporting period was approximately 6.6 miles per hour at the 35-foot elevation.

The annual meteorological data (Hourly Average Data or Joint Frequency Distribution) will be maintained on site in a file that shall be provided to the NRC upon request.

11.0 DISCUSSION 11.1 Unit One Unit One operated without a refueling outage.

Maintenance outages:

None.

Estimated number of fuel defects1 Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 0 0 0 0 0 0 0 0 0 0 0 11.2 Unit Two Unit Two operated with a refueling outage (2R23) from October 9, 2021, to November 11, 2021.

Maintenance outages:

Unit 2 had two maintenance outages during 2021:

  • 2M23A from February 26, 2021, to March 1, 2021
  • 2M23B from May 19, 2021, to May 22, 2021.

Estimated number of fuel defects Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 0 0 0 0 0 0 0 0 0 0 0 1

Source: Institute of Nuclear Power (INPO), Consolidated Data Entry (CDE)

PVNGS ARERR 2021 Page 7

11.3 Unit Three Unit Three operated with a refueling outage (3R22) from April 10, 2021, to May 18, 2021.

Maintenance outages:

Unit 3 had one maintenance outage (3M23A) from December 6, 2021, to December 9, 2021.

Estimated number of fuel defects Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec 0 0 0 0 0 0 0 0 0 0 0 0 11.4 Carbon-14 Carbon-14 is formed naturally in the upper atmosphere, and it is also formed in operating nuclear reactors.

Carbon-14 is not a new power plant effluent. The overall quantity of radioactive releases has steadily decreased due to improvements in power plant operations.

Based on the decline in other radionuclides released, carbon-14 has the potential to achieve the status of a principal radionuclide as defined in Regulatory Guide 1.21.

The dose received by a member of the public from carbon-14 from nuclear power plant effluents is much lower than regulatory limits, and has been a very small contributor to the total radiation dose received each year from natural and manmade sources.

Studies by the United Nations Scientific Committee on the Effects of Atomic Radiation, the National Research Council report on the Biological Effects of Ionizing Radiation (BEIR VII), and the National Council on Radiation Protection and Measurements all show that the risk associated with low-dose radiation from natural and man-made sources, including nuclear power plants, is negligible.

The average member of the public in the United States is exposed to 620 mrem every year, of which approximately 311 mrem of this comes from natural sources. The majority of the remaining dose (approximately 300 mrem) comes from medical procedures (such as, x-Rays, CAT scans, etc.). Less than one-tenth of a percent of all non-occupational radiation exposure is from nuclear facilities.2 The PVNGS calculated carbon-14 production rate is 18.5 curies per operating cycle (500 days) or 13.5 curies per year. The production rate of 13.5 curies will be divided equally between each quarter, 3.38 curies per reactor, and the estimated carbon-14 activity is included in the inhalation and ingestion dose calculations.

2 Source: NCRP Report No. 160, Table 1.1 PVNGS ARERR 2021 Page 8

11.5 Tritium PVNGS does not have a liquid release pathway. Removal of tritium is performed by operation of the Boric Acid Concentrator (BAC) in the release mode. Comparison of PVNGS annual tritium curies released to other utilities should be made only after summing both liquid and gaseous tritium curies released.

11.6 Dose Summary Dose for 2021 was primarily due to the release of tritium. The calculated tritium production rate for each PVNGS reactor is estimated to be approximately 1150 curies per year; however, a large fraction of the tritium produced does not become part of the reactor coolant source term. The tritium produced in the coolant contributes immediately to the overall tritium source term, but the tritium produced by fission and neutron capture in the Control Element Assemblies (CEAs) and borated shim rods only contributes to the reactor coolant source term if it is released through the cladding. To control in-plant tritium concentrations, tritium releases account for tritium production that enters the reactor coolant. For 2021, the total tritium released from PVNGS was 2.58E+03 curies (see Table 39).

PVNGS ARERR 2021 Page 9

APPENDIX A: EFFLUENT AND WASTE DISPOSAL REPORTS PVNGS ARERR 2021 Page 10

Table 1: Evaporation Pond Data Evaporation Pond 1(1A, 1B, 1C) Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Historical Evaporation (ml) 3.22E+11 8.85E+11 8.85E+11 3.22E+11 Tritium Concentration (Ci/cc) 7.63E-07 7.98E-07 7.98E-07 9.15E-07 Tritium Curies 2.46E-01 7.06E-01 7.06E-01 2.94E-01 1.95E+00 Evaporation Pond 2 (2A and 2B) Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Historical Evaporation (ml) 2.89E+11 7.94E+11 7.94E+11 2.89E+11 Tritium Concentration (Ci/cc) 6.24E-07 8.76E-07 6.15E-07 6.52E-07 Tritium Curies 1.80E-01 6.95E-01 4.88E-01 1.88E-01 1.55E+00 Evaporation Pond 3 (3A(1) and 3B) Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Historical Evaporation (ml) 1.10E+11 3.02E+11 3.02E+11 1.10E+11 Tritium Concentration (Ci/cc) 5.37E-07 5.37E-07 5.37E-07 8.46E-07 Tritium Curies 5.90E-02 1.62E-01 1.62E-01 9.29E-02 4.76E-01 Dose (mrem) Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Pond 1 3.41E-03 9.79E-03 9.79E-03 4.08E-03 2.71E-02 Pond 2 2.50E-03 9.64E-03 6.77E-03 2.61E-03 2.15E-02 Pond 3 8.18E-04 2.25E-03 2.25E-03 1.29E-03 6.60E-03 Total 6.72E-03 2.17E-02 1.88E-02 7.98E-03 5.52E-02 (1): Releases from Evaporation Pond 3A were excluded because the pond has no detectable tritium, no plant related influent, and is considered empty.

Table 2: Batch Release Data All times are in hours Unit 1 Unit 2 Unit 3 January - June Number of batch releases 17 21 43 Total time period for batch releases 127.95 365.04 1680.685 Maximum time period for a batch release 81.60 122.82 168.00 Average time period for a batch release 7.53 17.38 39.09 Minimum time period for a batch release 0.11 0.03 0.44 July - December Number of batch releases 16 36 24 Total time period for batch releases 320.67 1246.51 320.74 Maximum time period for a batch release 162.40 168.00 150.00 Average time period for a batch release 20.04 34.63 13.36 Minimum time period for a batch release 0.53 0.12 0.65 January - December Number of batch releases 33 57 67 Total time period for batch releases 448.62 1611.55 2001.43 Maximum time period for a batch release 162.40 168.00 168.00 Average time period for a batch release 13.59 28.27 29.87 Minimum time period for a batch release 0.11 0.03 0.44 Table 1: Units 1, 2 & 3 Gaseous Effluents Average Lower Limit of Detection PVNGS ARERR 2021 Page 11

Table 3: Units 1 2 and 3 Gaseous Effluents Average Lower Limit of Detection (Ci/cc)

Table 3:

Units 1, 2, and 3 Gaseous Effluents Average Lower Limit of Detection (Ci/cc)

Nuclide Continuous Batch Nuclide Continuous Batch Antimony-122 2.20E-13 1.90E-11 Argon-41 4.50E-08 4.50E-08 Antimony-124 8.40E-14 1.70E-11 Krypton-85 7.40E-06 7.40E-06 Barium-140 3.40E-13 5.70E-11 Krypton-85m 2.20E-08 2.20E-08 Bromine-82 3.30E-13 1.40E-11 Krypton-87 5.70E-08 5.70E-08 Cerium-141 8.70E-14 3.10E-11 Krypton-88 7.40E-08 7.40E-08 Cerium-144 3.60E-13 6.50E-11 Xenon-125 2.20E-08 2.20E-08 Cesium-134 1.00E-13 2.60E-11 Xenon-127 2.10E-08 2.10E-08 Cesium-137 8.10E-14 1.70E-11 Xenon-131m 9.10E-07 9.10E-07 Cesium-138 5.20E-10 7.30E-10 Xenon-133 6.30E-08 6.30E-08 Chromium-51 6.90E-13 1.40E-10 Xenon-133m 1.90E-07 1.90E-07 Cobalt-58 8.50E-14 1.70E-11 Xenon-135 2.00E-08 2.00E-08 Cobalt-60 1.00E-13 1.90E-11 Xenon-135m 8.90E-08 8.90E-08 Iron-59 1.70E-13 3.20E-11 Xenon-138 2.00E-07 2.00E-07 Lanthanum-140 2.80E-13 2.10E-11 Iodine-131 8.00E-14 7.00E-12 Manganese-54 8.30E-14 1.70E-11 Iodine-132 6.60E-12 1.90E-11 Molybdenum-99 2.40E-13 2.80E-11 Iodine-133 4.70E-13 1.10E-11 Niobium-95 8.70E-14 1.80E-11 Iodine-134 5.90E-11 8.20E-11 Rubidium-88 1.90E-08 1.90E-08 Iodine-135 7.00E-12 5.50E-11 Ruthenium-103 7.40E-14 1.50E-11 Strontium-89 2.15E-15 (1)

Strontium-90 5.60E-16 (1)

Tellurium-123m 6.60E-14 1.50E-11 Tritium 3.80E-07 3.80E-07 Zinc-65 1.90E-13 3.80E-11 Zirconium-95 1.80E-13 4.10E-11 Gross Alpha 3.60E-15 (1)

(1) Not required for batch releases.

Table 2: Unit 1 Gaseous Effluents - Summation Of All Releases PVNGS ARERR 2021 Page 12

Table 4: Unit 1 Gaseous Effluents (Summation Of All Releases)

Table 4:

Unit 1 Gaseous Effluents (Summation Of All Releases)

Est. Total Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Error (%) (1)

A. Fission & activation gases

1. Total release Ci 2.89E-02 3.01E-02 1.88E-02 2.62E-02 1.04E-01 3.54E+01
2. Average release rate for period Ci/sec 3.72E-03 3.83E-03 2.36E-03 3.30E-03 3.30E-03
3. Percent of ODCM Requirement limit  % NA (2) NA (2) NA (2) NA (2) NA (2)

B. Iodine 131

1. Total Iodine 131 Ci 2.15E-06 <LLD <LLD <LLD 2.15E-06 3.32E+01
2. Average release rate for period Ci/sec 2.77E-07 <LLD <LLD <LLD 6.83E-08
3. Percent of ODCM Requirement limit  % NA (2) NA (2) NA (2) NA (2) NA (2)

C. Particulates

1. Particulates with half- lives > 8 days Ci <LLD <LLD <LLD <LLD <LLD 3.43E+01
2. Average release rate for period Ci/sec <LLD <LLD <LLD <LLD <LLD
3. Percent of ODCM Requirement limit  % NA (2) NA (2) NA (2) NA (2) NA (2)
4. Gross Alpha radioactivity Ci <LLD <LLD <LLD <LLD <LLD D. Tritium
1. Total release Ci 4.70E+01 6.49E+01 2.11E+02 1.61E+02 4.84E+02 3.85E+01
2. Average release rate for period Ci/sec 6.05E+00 8.26E+00 2.66E+01 2.02E+01 1.54E+01
3. Percent of ODCM Requirement limit  % NA (2) NA (2) NA (2) NA (2) NA (2)

(1) Estimated total error methodology is presented in Table 40.

(2) See Table 11 for percent of ODCM Requirement limits.

PVNGS ARERR 2021 Page 13

Table 5: Unit 1 Gaseous Effluents - Ground Level Releases - Continuous - Fission Gases and Iodines Table 5:

Unit 1 Gaseous Effluents - Ground Level Releases - Continuous - Fission Gases and Iodines Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci <LLD <LLD <LLD <LLD <LLD Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD <LLD <LLD Xe-133 Ci <LLD <LLD <LLD <LLD <LLD Xe-133m Ci <LLD <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD <LLD <LLD
2. Iodines I-131 Ci 2.15E-06 <LLD <LLD <LLD 2.15E-06 I-132 Ci <LLD <LLD <LLD <LLD <LLD I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 2.15E-06 <LLD <LLD <LLD 2.15E-06 PVNGS ARERR 2021 Page 14

Table 6: Unit 1 Gaseous Effluents - Ground Level Releases - Continuous - Particulates Table 6:

Unit 1 Gaseous Effluents - Ground Level Releases - Continuous - Particulates Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD <LLD <LLD Co-60 Ci <LLD <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD <LLD <LLD <LLD <LLD Os-191 Ci <LLD <LLD <LLD <LLD <LLD Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD <LLD <LLD
4. Tritium H-3 Ci 3.83E+01 3.11E+01 3.08E+01 2.26E+01 1.23E+02 s - Ground Level Releases - Continuous - Particulates PVNGS ARERR 2021 Page 15

Table 7: Unit 1 Gaseous Effluents - Ground Level Releases- Batch - Fission Gases and Iodines Table 7:

Unit 1 Gaseous Effluents - Ground Level Releases- Batch - Fission Gases and Iodines Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci 2.89E-02 3.00E-02 1.87E-02 2.62E-02 1.04E-01 Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD <LLD <LLD Xe-133 Ci <LLD 1.43E-04 1.05E-04 <LLD 2.48E-04 Xe-133m Ci <LLD <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 2.89E-02 3.01E-02 1.88E-02 2.62E-02 1.04E-01
2. Iodines I-131 Ci <LLD <LLD <LLD <LLD <LLD I-132 Ci <LLD <LLD <LLD <LLD <LLD I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD <LLD <LLD Table 3 PVNGS ARERR 2021 Page 16

Table 8: Unit 1 Gaseous Effluents - Ground Level Releases - Batch - Particulates Table 8:

Unit 1 Gaseous Effluents - Ground Level Releases - Batch - Particulates Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD <LLD <LLD Co-60 Ci <LLD <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD <LLD <LLD <LLD <LLD Os-191 Ci <LLD <LLD <LLD <LLD <LLD Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci Note 1 Note 1 Note 1 Note 1 Note 1 Sr-90 Ci Note 1 Note 1 Note 1 Note 1 Note 1 Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD <LLD <LLD 4.Tritium H-3 Ci 8.72E+00 3.39E+01 1.81E+02 1.38E+02 3.61E+02 Note 1 - Not required for batch releases Table 4 PVNGS ARERR 2021 Page 17
Unit 1 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines Table 9: Unit 1 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines Table 9:

Unit 1 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci 2.89E-02 3.00E-02 1.87E-02 2.62E-02 1.04E-01 Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD <LLD <LLD Xe-133 Ci <LLD 1.43E-04 1.05E-04 <LLD 2.48E-04 Xe-133m Ci <LLD <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 2.89E-02 3.01E-02 1.88E-02 2.62E-02 1.04E-01
2. Iodines I-131 Ci 2.15E-06 <LLD <LLD <LLD 2.15E-06 I-132 Ci <LLD <LLD <LLD <LLD <LLD I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 2.15E-06 <LLD <LLD <LLD 2.15E-06 Table 5 PVNGS ARERR 2021 Page 18
Unit 1 Gaseous Effluents-Continuous and Batch-Particulates Table 10: Unit 1 Gaseous Effluents - Continuous and Batch - Particulates Table 10:

Unit 1 Gaseous Effluents - Continuous and Batch - Particulates Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD <LLD <LLD Co-60 Ci <LLD <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD <LLD <LLD <LLD <LLD Os-191 Ci <LLD <LLD <LLD <LLD <LLD Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD <LLD <LLD Total > 8 days Ci <LLD <LLD <LLD <LLD <LLD
4. Tritium H-3 Ci 4.70E+01 6.49E+01 2.11E+02 1.61E+02 4.84E+02 PVNGS ARERR 2021 Page 19

Table 6: Unit 1 Radiation Doses At And Beyond The Site Boundary Table 11: Unit 1 Radiation Doses At And Beyond The Site Boundary Table 11:

Unit 1 Radiation Doses At And Beyond The Site Boundary Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Gamma Air Dose mrad 6.37E-05 6.61E-05 4.11E-05 5.77E-05 2.29E-04 ODCM Req. 4.1 Limit mrad 5.00E+00 5.00E+00 5.00E+00 5.00E+00 1.00E+01

% ODCM Limit  % 1.27E-03 1.32E-03 8.23E-04 1.15E-03 2.29E-03 Beta Air Dose mrad 2.25E-05 2.34E-05 1.45E-05 2.04E-05 8.07E-05 ODCM Req. 4.1 Limit mrad 1.00E+01 1.00E+01 1.00E+01 1.00E+01 2.00E+01

% ODCM Limit  % 2.25E-04 2.34E-04 1.45E-04 2.04E-04 4.04E-04 Maximum Organ Dose mrem 2.87E-02 2.87E-02 6.77E-02 5.24E-02 1.62E-01 (excluding skin)

Age Child Child Teen Teen Teen Organ Bone Bone T. Body T. Body Thyroid ODCM Req. 4.2 Limit mrem 7.50E+00 7.50E+00 7.50E+00 7.50E+00 1.50E+01

% ODCM Limit  % 3.83E-01 3.83E-01 9.02E-01 6.99E-01 1.08E+00 Calculations are based on parameters and methodologies of the ODCM using historical meteorology. Dose is calculated to a hypothetical individual. In contrast, Appendix C dose calculations are based on concurrent meteorology, a real individual, and only the actual pathways present.

T PVNGS ARERR 2021 Page 20

Table 12: Unit 2 Gaseous Effluents - Summation Of All Releases Table 12:

Unit 2 Gaseous Effluents - Summation Of All Releases Est. Total Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Error (%) (1)

A. Fission & activation gases

1. Total release Ci 3.95E-02 5.20E-02 1.09E-01 1.09E+00 1.29E+00 3.54E+01
2. Average release rate for period Ci/sec 5.08E-03 6.61E-03 1.37E-02 1.37E-01 4.08E-02
3. Percent of ODCM Requirement limit  % NA (2) NA (2) NA (2) NA (2) NA (2)

B. Iodine 131

1. Total Iodine 131 Ci <LLD <LLD <LLD <LLD <LLD 3.32E+01
2. Average release rate for period Ci/sec <LLD <LLD <LLD <LLD <LLD
3. Percent of ODCM Requirement limit  % NA (2) NA (2) NA (2) NA (2) NA (2)

C. Particulates

1. Particulates with half- lives > 8 days Ci 6.78E-06 1.82E-05 <LLD 1.33E-04 1.58E-04 3.43E+01
2. Average release rate for period Ci/sec 8.71E-07 2.31E-06 <LLD 1.67E-05 5.00E-06
3. Percent of ODCM Requirement limit  % NA (2) NA (2) NA (2) NA (2) NA (2)
4. Gross Alpha radioactivity Ci <LLD <LLD <LLD <LLD <LLD D. Tritium
1. Total release Ci 4.74E+01 4.84E+02 4.47E+02 1.17E+02 1.10E+03 3.85E+01
2. Average release rate for period Ci/sec 6.10E+00 6.16E+01 5.63E+01 1.47E+01 3.48E+01
3. Percent of ODCM Requirement limit  % NA (2) NA (2) NA (2) NA (2) NA (2)

(1) Estimated total error methodology is presented in Table 40.

(2) See Table 19 for percent of ODCM Requirement limits.

PVNGS ARERR 2021 Page 21

Table 13: Unit 2 Gaseous Effluents - Ground Level Releases - Continuous - Fission Gases and Iodines Table 13:

Unit 2 Gaseous Effluents - Ground Level Releases - Continuous - Fission Gases and Iodines Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci <LLD <LLD <LLD <LLD <LLD Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD <LLD <LLD Xe-133 Ci <LLD <LLD <LLD 4.01E-01 4.01E-01 Xe-133m Ci <LLD <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD 4.01E-01 4.01E-01
2. Iodines I-131 Ci <LLD <LLD <LLD <LLD <LLD I-132 Ci <LLD <LLD <LLD <LLD <LLD I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD <LLD <LLD Table 7: Unit PVNGS ARERR 2021 Page 22

Table 14: Unit 2 Gaseous Effluents - Ground Level Releases - Continuous - Particulates Table 14:

Unit 2 Gaseous Effluents - Ground Level Releases - Continuous - Particulates Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD 1.57E-05 1.57E-05 Co-60 Ci 6.78E-06 1.82E-05 <LLD 1.32E-05 3.82E-05 Cr-51 Ci <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD <LLD <LLD 1.58E-06 1.58E-06 Os-191 Ci <LLD <LLD <LLD 1.44E-06 1.44E-06 Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 6.78E-06 1.82E-05 <LLD 3.19E-05 5.69E-05
4. Tritium H-3 Ci 4.74E+01 2.45E+01 2.80E+01 2.57E+01 1.26E+02 Table 8: Un PVNGS ARERR 2021 Page 23

Table 15: Unit 2 Gaseous Effluents - Ground Level Releases - Batch - Fission Gases and Iodines Table 15:

Unit 2 Gaseous Effluents - Ground Level Releases - Batch - Fission Gases and Iodines Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci 3.72E-02 4.88E-02 1.02E-01 3.00E-02 2.18E-01 Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD <LLD <LLD Xe-133 Ci 2.17E-03 3.16E-03 6.27E-03 6.54E-01 6.66E-01 Xe-133m Ci <LLD <LLD <LLD 4.54E-04 4.54E-04 Xe-135 Ci <LLD <LLD 1.15E-04 <LLD 1.15E-04 Xe-135m Ci 1.54E-04 <LLD <LLD <LLD 1.54E-04 Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 3.95E-02 5.20E-02 1.09E-01 6.84E-01 8.84E-01
2. Iodines I-131 Ci <LLD <LLD <LLD <LLD <LLD I-132 Ci <LLD <LLD <LLD 1.47E-05 1.47E-05 I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD 1.47E-05 1.47E-05 Table 9: Unit 2 PVNGS ARERR 2021 Page 24

Table 16: Unit 2 Gaseous Effluents - Ground Level Releases - Batch - Particulates Table 16:

Unit 2 Gaseous Effluents - Ground Level Releases - Batch - Particulates Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD <LLD <LLD 4.69E-06 4.69E-06 Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD 2.58E-05 2.58E-05 Co-60 Ci <LLD <LLD <LLD 2.11E-05 2.11E-05 Cr-51 Ci <LLD <LLD <LLD 2.25E-05 2.25E-05 Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD 2.66E-07 2.66E-07 Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD <LLD <LLD 1.93E-05 1.93E-05 Os-191 Ci <LLD <LLD <LLD <LLD <LLD Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci Note 1 Note 1 Note 1 Note 1 Note 1 Sr-90 Ci Note 1 Note 1 Note 1 Note 1 Note 1 Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD 1.20E-05 1.20E-05 Total Ci <LLD <LLD <LLD 1.06E-04 1.06E-04
4. Tritium H-3 Ci 4.79E-03 4.60E+02 4.19E+02 9.15E+01 9.71E+02 Note 1 - Not required for batch releases PVNGS ARERR 2021 Page 25

Table 17: Unit 2 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines Table 17:

Unit 2 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci 3.72E-02 4.88E-02 1.02E-01 3.00E-02 2.18E-01 Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD <LLD <LLD Xe-133 Ci 2.17E-03 3.16E-03 6.27E-03 1.06E+00 1.07E+00 Xe-133m Ci <LLD <LLD <LLD 4.54E-04 4.54E-04 Xe-135 Ci <LLD <LLD 1.15E-04 <LLD 1.15E-04 Xe-135m Ci 1.54E-04 <LLD <LLD <LLD 1.54E-04 Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 3.95E-02 5.20E-02 1.09E-01 1.09E+00 1.29E+00
2. Iodines I-131 Ci <LLD <LLD <LLD <LLD <LLD I-132 Ci <LLD <LLD <LLD 1.47E-05 1.47E-05 I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD 1.47E-05 1.47E-05 PVNGS ARERR 2021 Page 26

Table 18: Unit 2 Gaseous Effluents - Continuous and Batch -Particulates Table 18:

Unit 2 Gaseous Effluents - Continuous and Batch - Particulates Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD <LLD <LLD 4.69E-06 4.69E-06 Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD 4.15E-05 4.15E-05 Co-60 Ci 6.78E-06 1.82E-05 <LLD 3.43E-05 5.93E-05 Cr-51 Ci <LLD <LLD <LLD 2.25E-05 2.25E-05 Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD 2.66E-07 2.66E-07 Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD <LLD <LLD 2.09E-05 2.09E-05 Os-191 Ci <LLD <LLD <LLD 1.44E-06 1.44E-06 Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD 1.20E-05 1.20E-05 Total Ci 6.78E-06 1.82E-05 <LLD 1.38E-04 1.63E-04 Total > 8 days Ci 6.78E-06 1.82E-05 <LLD 1.33E-04 1.58E-04
4. Tritium H-3 Ci 4.74E+01 4.84E+02 4.47E+02 1.17E+02 1.10E+03 Table 10: U PVNGS ARERR 2021 Page 27

nit 2 Radiation Doses At Beyond The Site Boundary Table 19: Unit 2 Radiation Doses At And Beyond The Site Boundary Table 19:

Unit 2 Radiation Doses At And Beyond The Site Boundary Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Gamma Air Dose mrad 8.68E-05 1.14E-04 2.39E-04 1.56E-04 5.96E-04 ODCM Req. 4.1 Limit mrad 5.00E+00 5.00E+00 5.00E+00 5.00E+00 1.00E+01

% ODCM Limit  % 1.74E-03 2.28E-03 4.78E-03 3.12E-03 5.96E-03 Beta Air Dose mrad 3.14E-05 4.13E-05 8.63E-05 4.16E-04 5.75E-04 ODCM Req. 4.1 Limit mrad 1.00E+01 1.00E+01 1.00E+01 1.00E+01 2.00E+01

% ODCM Limit  % 3.14E-04 4.13E-04 8.63E-04 4.16E-03 2.87E-03 Maximum Organ Dose mrem 3.04E-02 1.59E-01 1.47E-01 4.16E-02 3.66E-01 (excluding skin)

Age Child Teen Teen Teen Teen Organ Bone Lung T. Body Lung Lung ODCM Req. 4.2 Limit  % 7.50E+00 7.50E+00 7.50E+00 7.50E+00 1.50E+01

% ODCM Limit  % 4.05E-01 2.12E+00 1.96E+00 5.55E-01 2.44E+00 Calculations are based on parameters and methodologies of the ODCM using historical meteorology. Dose is calculated to a hypothetical individual. In contrast, Appendix C dose calculations are based on concurrent meteorology, a real individual, and only the actual pathways present.

PVNGS ARERR 2021 Page 28

Table 20: Unit 3 Gaseous Effluents - Summation Of All Releases Table 20:

Unit 3 Gaseous Effluents - Summation Of All Releases Est. Total Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Error (%)(1)

A. Fission & activation gases

1. Total release Ci 1.13E+00 5.76E-01 6.78E-02 8.80E-02 1.86E+00 3.54E+01
2. Average release rate for period Ci/sec 1.46E-01 7.32E-02 8.54E-03 1.11E-02 5.91E-02
3. Percent of ODCM Requirement limit (2) (2) (2) (2)

% NA NA NA NA NA (2)

B. Iodine 131

1. Total Iodine 131 Ci <LLD 7.14E-06 <LLD <LLD 7.14E-06 3.32E+01
2. Average release rate for period Ci/sec <LLD 9.08E-07 <LLD <LLD 2.26E-07
3. Percent of ODCM Requirement limit (2) (2) (2) (2)

% NA NA NA NA NA (2)

C. Particulates

1. Particulates with half- lives > 8 days Ci <LLD 5.02E-03 <LLD <LLD 5.02E-03 3.43E+01
2. Average release rate for period Ci/sec <LLD 6.38E-04 <LLD <LLD 1.59E-04
3. Percent of ODCM Requirement limit (2) (2) (2) (2)

% NA NA NA NA NA (2)

4. Gross Alpha radioactivity Ci <LLD <LLD <LLD <LLD <LLD D. Tritium
1. Total release Ci 3.90E+02 3.81E+02 4.00E+01 1.92E+02 1.00E+03 3.85E+01
2. Average release rate for period Ci/sec 5.01E+01 4.85E+01 5.04E+00 2.41E+01 3.18E+01
3. Percent of ODCM Requirement limit  % NA (2) NA (2) NA (2) NA (2) NA (2)

(1) Estimated total error methodology is presented in Table 40.

(2) See Table 27 for percent of ODCM Requirement limits.

Table U PVNGS ARERR 2021 Page 29

Table 21: Unit 3 Gaseous Effluents - Ground Level Releases - Continuous - Fission Gases and Iodines Table 21:

Unit 3 Gaseous Effluents - Ground Level Releases - Continuous - Fission Gases and Iodines Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci <LLD <LLD <LLD <LLD <LLD Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD <LLD <LLD Xe-133 Ci <LLD <LLD <LLD <LLD <LLD Xe-133m Ci <LLD <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD <LLD <LLD
2. Iodines I-131 Ci <LLD 7.14E-06 <LLD <LLD 7.14E-06 I-132 Ci <LLD 1.77E-04 <LLD <LLD 1.77E-04 I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD 1.84E-04 <LLD <LLD 1.84E-04 PVNGS ARERR 2021 Page 30

Table 22: Unit 3 Gaseous Effluents - Ground Level Releases - Continuous - Particulates Table 22:

Unit 3 Gaseous Effluents - Ground Level Releases - Continuous - Particulates Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Year Total

3. Particulates Ag-110m Ci <LLD 1.32E-06 <LLD <LLD 1.32E-06 Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD 3.31E-04 <LLD <LLD 3.31E-04 Co-60 Ci <LLD 1.84E-04 <LLD <LLD 1.84E-04 Cr-51 Ci <LLD 1.02E-03 <LLD <LLD 1.02E-03 Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD 2.06E-05 <LLD <LLD 2.06E-05 La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD 2.72E-05 <LLD <LLD 2.72E-05 Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD 2.41E-04 <LLD <LLD 2.41E-04 Os-191 Ci <LLD <LLD <LLD <LLD <LLD Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD 4.44E-06 <LLD <LLD 4.44E-06 Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD 1.64E-04 <LLD <LLD 1.64E-04 Total Ci <LLD 2.00E-03 <LLD <LLD 2.00E-03
4. Tritium H-3 Ci 2.11E+01 3.73E+01 4.00E+01 2.41E+01 1.22E+02 PVNGS ARERR 2021 Page 31

Table 23: Unit 3 Gaseous Effluents - Ground Level Releases - Batch - Fission Gases and Iodines Table 23:

Unit 3 Gaseous Effluents - Ground Level Releases - Batch - Fission Gases and Iodines Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Year Total

1. Fission gases Ar-41 Ci 1.08E+00 8.23E-02 6.52E-02 8.38E-02 1.31E+00 Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD 5.92E-04 <LLD <LLD 5.92E-04 Xe-133 Ci 5.47E-02 4.92E-01 2.69E-03 4.13E-03 5.54E-01 Xe-133m Ci <LLD 3.10E-04 <LLD <LLD 3.10E-04 Xe-135 Ci <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 1.13E+00 5.76E-01 6.78E-02 8.80E-02 1.86E+00
2. Iodines I-131 Ci <LLD <LLD <LLD <LLD <LLD I-132 Ci <LLD 2.14E-06 <LLD <LLD 2.14E-06 I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD 2.14E-06 <LLD <LLD 2.14E-06 PVNGS ARERR 2021 Page 32

Table 24: Unit 3 Gaseous Effluents - Ground Level Releases - Batch - Particulates Table 24:

Unit 3 Gaseous Effluents - Ground Level Releases - Batch - Particulates Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD 3.80E-06 <LLD <LLD 3.80E-06 Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD 5.17E-04 <LLD <LLD 5.17E-04 Co-60 Ci <LLD 1.95E-04 <LLD <LLD 1.95E-04 Cr-51 Ci <LLD 7.97E-04 <LLD <LLD 7.97E-04 Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD 5.75E-05 <LLD <LLD 5.75E-05 Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD 8.20E-04 <LLD <LLD 8.20E-04 Os-191 Ci <LLD <LLD <LLD <LLD <LLD Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci Note 1 Note 1 Note 1 Note 1 Note 1 Sr-90 Ci Note 1 Note 1 Note 1 Note 1 Note 1 Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD 6.32E-04 <LLD <LLD 6.32E-04 Total Ci <LLD 3.02E-03 <LLD <LLD 3.02E-03
4. Tritium H-3 Ci 3.69E+02 3.44E+02 1.46E-02 1.68E+02 8.80E+02 Note 1 - Not required for batch releases PVNGS ARERR 2021 Page 33

Table 25: Unit 3 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines Table 25:

Unit 3 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci 1.08E+00 8.23E-02 6.52E-02 8.38E-02 1.31E+00 Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD 5.92E-04 <LLD <LLD 5.92E-04 Xe-133 Ci 5.47E-02 4.92E-01 2.69E-03 4.13E-03 5.54E-01 Xe-133m Ci <LLD 3.10E-04 <LLD <LLD 3.10E-04 Xe-135 Ci <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 1.13E+00 5.76E-01 6.78E-02 8.80E-02 1.86E+00
2. Iodines I-131 Ci <LLD 7.14E-06 <LLD <LLD 7.14E-06 I-132 Ci <LLD 1.79E-04 <LLD <LLD 1.79E-04 I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD 1.86E-04 <LLD <LLD 1.86E-04 PVNGS ARERR 2021 Page 34

Table 26: Unit 3 Gaseous Effluents - Continuous and Batch -Particulates Table 26:

Unit 3 Gaseous Effluents - Continuous and Batch - Particulates Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD 1.32E-06 <LLD <LLD 1.32E-06 Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD 3.80E-06 <LLD <LLD 3.80E-06 Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD 8.49E-04 <LLD <LLD 8.49E-04 Co-60 Ci <LLD 3.79E-04 <LLD <LLD 3.79E-04 Cr-51 Ci <LLD 1.82E-03 <LLD <LLD 1.82E-03 Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD 2.06E-05 <LLD <LLD 2.06E-05 La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD 8.47E-05 <LLD <LLD 8.47E-05 Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD 1.06E-03 <LLD <LLD 1.06E-03 Os-191 Ci <LLD <LLD <LLD <LLD <LLD Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD 4.44E-06 <LLD <LLD 4.44E-06 Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD 7.97E-04 <LLD <LLD 7.97E-04 Total Ci <LLD 5.02E-03 <LLD <LLD 5.02E-03 Total > 8 days Ci <LLD 5.02E-03 <LLD <LLD 5.02E-03
4. Tritium H-3 Ci 3.90E+02 3.81E+02 4.00E+01 1.92E+02 1.00E+03 PVNGS ARERR 2021 Page 35

Table 27: Unit 3 Radiation Doses At And Beyond The Site Boundary Table 27:

Unit 3 Radiation Doses At And Beyond The Site Boundary Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total Gamma Air Dose mrad 2.84E-03 2.62E-04 1.71E-04 2.21E-04 3.49E-03 ODCM Req. 4.1 Limit mrad 5.00E+00 5.00E+00 5.00E+00 5.00E+00 1.00E+01

% ODCM Limit  % 5.68E-02 5.24E-03 3.43E-03 4.41E-03 3.49E-02 Beta Air Dose mrad 1.02E-03 2.82E-04 6.15E-05 7.94E-05 1.45E-03 ODCM Req. 4.1 Limit mrad 1.00E+01 1.00E+01 1.00E+01 1.00E+01 2.00E+01

% ODCM Limit  % 1.02E-02 2.82E-03 6.15E-04 7.94E-04 7.23E-03 Maximum Organ Dose mrem 1.45E-01 1.44E-01 3.43E-02 7.36E-02 3.81E-01 (excluding skin)

Age Teen Teen Child Teen Teen Organ T. Body Lung Bone T. Body Lung ODCM Req. 4.2 Limit mrem 7.50E+00 7.50E+00 7.50E+00 7.50E+00 1.50E+01

% ODCM Limit  % 1.93E+00 1.92E+00 4.57E-01 9.81E-01 2.54E+00 Calculations are based on parameters and methodologies of the ODCM using historical meteorology. Dose is calculated to a hypothetical individual. In contrast, Appendix C dose calculations are based on concurrent meteorology, a real individual, and only the actual pathways present.

PVNGS ARERR 2021 Page 36

Table 28: Units 1, 2 and 3 Gaseous Effluents - Continuous - Fission Gases and Iodines- Total By Quarter Table 28:

Units 1, 2 and 3 Gaseous Effluents - Continuous - Fission Gases and Iodines - Total By Quarter Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci <LLD <LLD <LLD <LLD <LLD Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD <LLD <LLD Xe-133 Ci <LLD <LLD <LLD 4.01E-01 4.01E-01 Xe-133m Ci <LLD <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD <LLD <LLD 4.01E-01 4.01E-01
2. Iodines I-131 Ci 2.15E-06 7.14E-06 <LLD <LLD 9.29E-06 I-132 Ci <LLD 1.77E-04 <LLD <LLD 1.77E-04 I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 2.15E-06 1.84E-04 <LLD <LLD 1.86E-04 PVNGS ARERR 2021 Page 37

Table 29: Units 1 2 and 3 Gaseous Effluents - Continuous - Particulates - Total By Quarter Table 29:

Units 1, 2 and 3 Gaseous Effluents - Continuous - Particulates - Total By Quarter Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD 1.32E-06 <LLD <LLD 1.32E-06 Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD 3.31E-04 <LLD 1.57E-05 3.47E-04 Co-60 Ci 6.78E-06 2.02E-04 <LLD 1.32E-05 2.22E-04 Cr-51 Ci <LLD 1.02E-03 <LLD <LLD 1.02E-03 Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD 2.06E-05 <LLD <LLD 2.06E-05 La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD 2.72E-05 <LLD <LLD 2.72E-05 Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD 2.41E-04 <LLD 1.58E-06 2.43E-04 Os-191 Ci <LLD <LLD <LLD 1.44E-06 1.44E-06 Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD 4.44E-06 <LLD <LLD 4.44E-06 Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD 1.64E-04 <LLD <LLD 1.64E-04 Total Ci 6.78E-06 2.02E-03 <LLD 3.19E-05 2.06E-03
4. Tritium H-3 Ci 1.07E+02 9.28E+01 9.88E+01 7.25E+01 3.71E+02 PVNGS ARERR 2021 Page 38

Table 30: Units 1, 2 and 3 Gaseous Effluents - Batch - Fission Gases and Iodines- Total By Quarter Table 30:

Units 1, 2 and 3 Gaseous Effluents - Batch - Fission Gases and Iodines - Total By Quarter Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci 1.14E+00 1.61E-01 1.86E-01 1.40E-01 1.63E+00 Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD 5.92E-04 <LLD <LLD 5.92E-04 Xe-133 Ci 5.68E-02 4.96E-01 9.06E-03 6.58E-01 1.22E+00 Xe-133m Ci <LLD 3.10E-04 <LLD 4.54E-04 7.64E-04 Xe-135 Ci <LLD <LLD 1.15E-04 <LLD 1.15E-04 Xe-135m Ci 1.54E-04 <LLD <LLD <LLD 1.54E-04 Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 1.20E+00 6.58E-01 1.95E-01 7.99E-01 2.85E+00
2. Iodines I-131 Ci <LLD <LLD <LLD <LLD <LLD I-132 Ci <LLD 2.14E-06 <LLD 1.47E-05 1.68E-05 I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci <LLD 2.14E-06 <LLD 1.47E-05 1.68E-05 PVNGS ARERR 2021 Page 39

Table 31: Units 1 2 and 3 Gaseous Effluents - Batch - Particulates - Total By Quarter Table 31:

Units 1, 2 and 3 Gaseous Effluents - Batch - Particulates - Total By Quarter Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD 3.80E-06 <LLD 4.69E-06 8.49E-06 Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD 5.17E-04 <LLD 2.58E-05 5.43E-04 Co-60 Ci <LLD 1.95E-04 <LLD 2.11E-05 2.16E-04 Cr-51 Ci <LLD 7.97E-04 <LLD 2.25E-05 8.20E-04 Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD 5.75E-05 <LLD 2.66E-07 5.77E-05 Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD 8.20E-04 <LLD 1.93E-05 8.39E-04 Os-191 Ci <LLD <LLD <LLD <LLD <LLD Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci Note 1 Note 1 Note 1 Note 1 Note 1 Sr-90 Ci Note 1 Note 1 Note 1 Note 1 Note 1 Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD 6.32E-04 <LLD 1.20E-05 6.44E-04 Total Ci <LLD 3.02E-03 <LLD 1.06E-04 3.13E-03
4. Tritium H-3 Ci 3.77E+02 8.37E+02 6.00E+02 3.97E+02 2.21E+03 PVNGS ARERR 2021 Page 40

Table 32: Units 1, 2 and 3 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines - Total By Quarter Table 32:

Units 1, 2 and 3 Gaseous Effluents - Continuous and Batch - Fission Gases and Iodines - Total By Quarter Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

1. Fission gases Ar-41 Ci 1.14E+00 1.61E-01 1.86E-01 1.40E-01 1.63E+00 Kr-83m Ci <LLD <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD 5.92E-04 <LLD <LLD 5.92E-04 Xe-133 Ci 5.68E-02 4.96E-01 9.06E-03 1.06E+00 1.62E+00 Xe-133m Ci <LLD 3.10E-04 <LLD 4.54E-04 7.64E-04 Xe-135 Ci <LLD <LLD 1.15E-04 <LLD 1.15E-04 Xe-135m Ci 1.54E-04 <LLD <LLD <LLD 1.54E-04 Xe-137 Ci <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 1.20E+00 6.58E-01 1.95E-01 1.20E+00 3.25E+00
2. Iodines I-131 Ci 2.15E-06 7.14E-06 <LLD <LLD 9.29E-06 I-132 Ci <LLD 1.79E-04 <LLD 1.47E-05 1.94E-04 I-133 Ci <LLD <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD Total Ci 2.15E-06 1.86E-04 <LLD 1.47E-05 2.03E-04 PVNGS ARERR 2021 Page 41

Table 33: Units 1, 2 and 3 Gaseous Effluents - Continuous and Batch - Particulates- Total By Quarter Table 33:

Units 1, 2 and 3 Gaseous Effluents - Continuous and Batch - Particulates - Total By Quarter Nuclides Released Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Total

3. Particulates Ag-110m Ci <LLD 1.32E-06 <LLD <LLD 1.32E-06 Ba-140 Ci <LLD <LLD <LLD <LLD <LLD Br-82 Ci <LLD 3.80E-06 <LLD 4.69E-06 8.49E-06 Ce-141 Ci <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD 8.49E-04 <LLD 4.15E-05 8.90E-04 Co-60 Ci 6.78E-06 3.98E-04 <LLD 3.43E-05 4.39E-04 Cr-51 Ci <LLD 1.82E-03 <LLD 2.25E-05 1.84E-03 Cs-134 Ci <LLD <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD 2.06E-05 <LLD <LLD 2.06E-05 La-140 Ci <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD 8.47E-05 <LLD 2.66E-07 8.50E-05 Mo-99 Ci <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD 1.06E-03 <LLD 2.09E-05 1.08E-03 Os-191 Ci <LLD <LLD <LLD 1.44E-06 1.44E-06 Rb-88 Ci <LLD <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD 4.44E-06 <LLD <LLD 4.44E-06 Sb-125 Ci <LLD <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD 7.97E-04 <LLD 1.20E-05 8.09E-04 Total Ci 6.78E-06 5.04E-03 <LLD 1.38E-04 5.18E-03 Total > 8 days Ci 6.78E-06 5.04E-03 <LLD 1.33E-04 5.18E-03
4. Tritium H-3 Ci 4.84E+02 9.30E+02 6.99E+02 4.70E+02 2.58E+03 PVNGS ARERR 2021 Page 42

Table 34: Units 1, 2 and 3 Gaseous Effluents- Continuous - Fission Gases and Iodine-Total By Unit Table 34:

Units 1, 2 and 3 Gaseous Effluents- Continuous - Fission Gases and Iodine -Total By Unit Nuclides Released Unit Unit 1 Unit 2 Unit 3 Total

1. Fission gases Ar-41 Ci <LLD <LLD <LLD <LLD Kr-83m Ci <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD <LLD Xe-133 Ci <LLD 4.01E-01 <LLD 4.01E-01 Xe-133m Ci <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD Xe-137 Ci <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD Total Ci <LLD 4.01E-01 <LLD 4.01E-01
2. Iodines I-131 Ci 2.15E-06 <LLD 7.14E-06 9.29E-06 I-132 Ci <LLD <LLD 1.77E-04 1.77E-04 I-133 Ci <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD Total Ci 2.15E-06 <LLD 1.84E-04 1.86E-04 PVNGS ARERR 2021 Page 43

Table 35: Units 1 2 and 3 Gaseous Effluents- Continuous - Particulates - Total By Unit Table 35:

Units 1, 2 and 3 Gaseous Effluents- Continuous - Particulates - Total By Unit Nuclides Released Unit Unit 1 Unit 2 Unit 3 Total

3. Particulates Ag-110m Ci <LLD <LLD 1.32E-06 1.32E-06 Ba-140 Ci <LLD <LLD <LLD <LLD Br-82 Ci <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD Co-58 Ci <LLD 1.57E-05 3.31E-04 3.47E-04 Co-60 Ci <LLD 3.82E-05 1.84E-04 2.22E-04 Cr-51 Ci <LLD <LLD 1.02E-03 1.02E-03 Cs-134 Ci <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD 2.06E-05 2.06E-05 La-140 Ci <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD 2.72E-05 2.72E-05 Mo-99 Ci <LLD <LLD <LLD <LLD Nb-95 Ci <LLD 1.58E-06 2.41E-04 2.43E-04 Os-191 Ci <LLD 1.44E-06 <LLD 1.44E-06 Rb-88 Ci <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD 4.44E-06 4.44E-06 Sb-125 Ci <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD 1.64E-04 1.64E-04 Total Ci <LLD 5.69E-05 2.00E-03 2.06E-03
4. Tritium H-3 Ci 1.23E+02 1.26E+02 1.22E+02 3.71E+02 PVNGS ARERR 2021 Page 44

Table 36: Units 1, 2 and 3 Gaseous Effluents- Batch - Fission Gases and Iodine- Total By Unit Table 36:

Units 1, 2 and 3 Gaseous Effluents- Batch - Fission Gases and Iodine - Total By Unit Nuclides Released Unit Unit 1 Unit 2 Unit 3 Total

1. Fission gases Ar-41 Ci 1.04E-01 2.18E-01 1.31E+00 1.63E+00 Kr-83m Ci <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD 5.92E-04 5.92E-04 Xe-133 Ci 2.48E-04 6.66E-01 5.54E-01 1.22E+00 Xe-133m Ci <LLD 4.54E-04 3.10E-04 7.64E-04 Xe-135 Ci <LLD 1.15E-04 <LLD 1.15E-04 Xe-135m Ci <LLD 1.54E-04 <LLD 1.54E-04 Xe-137 Ci <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD Total Ci 1.04E-01 8.84E-01 1.86E+00 2.85E+00
2. Iodines I-131 Ci <LLD <LLD <LLD <LLD I-132 Ci <LLD 1.47E-05 2.14E-06 1.68E-05 I-133 Ci <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD Total Ci <LLD 1.47E-05 2.14E-06 1.68E-05 PVNGS ARERR 2021 Page 45

Table 37: Units 1 2 and 3 Gaseous Effluents- Batch - Particulates - Total By Unit Table 37:

Units 1, 2 and 3 Gaseous Effluents- Batch - Particulates - Total By Unit Nuclides Released Unit Unit 1 Unit 2 Unit 3 Total

3. Particulates Ag-110m Ci <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD Br-82 Ci <LLD 4.69E-06 3.80E-06 8.49E-06 Ce-141 Ci <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD Co-58 Ci <LLD 2.58E-05 5.17E-04 5.43E-04 Co-60 Ci <LLD 2.11E-05 1.95E-04 2.16E-04 Cr-51 Ci <LLD 2.25E-05 7.97E-04 8.20E-04 Cs-134 Ci <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD Mn-54 Ci <LLD 2.66E-07 5.75E-05 5.77E-05 Mo-99 Ci <LLD <LLD <LLD <LLD Nb-95 Ci <LLD 1.93E-05 8.20E-04 8.39E-04 Os-191 Ci <LLD <LLD <LLD <LLD Rb-88 Ci <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD Sr-89 Ci Note 1 Note 1 Note 1 Note 1 Sr-90 Ci Note 1 Note 1 Note 1 Note 1 Tc-99m Ci <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD Zr-95 Ci <LLD 1.20E-05 6.32E-04 6.44E-04 Total Ci <LLD 1.06E-04 3.02E-03 3.13E-03
4. Tritium H-3 Ci 3.61E+02 9.71E+02 8.80E+02 2.21E+03 Note 1 - Not required for batch releases PVNGS ARERR 2021 Page 46

Table 38: Units 1, 2 and 3 Gaseous Effluents- Continuous and Batch - Fission Gases and Iodine - Total By Unit Table 38:

Units 1, 2 and 3 Gaseous Effluents- Continuous and Batch - Fission Gases and Iodine - Total By Unit Nuclides Released Unit Unit 1 Unit 2 Unit 3 Total

1. Fission gases Ar-41 Ci 1.04E-01 2.18E-01 1.31E+00 1.63E+00 Kr-83m Ci <LLD <LLD <LLD <LLD Kr-85 Ci <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD Kr-89 Ci <LLD <LLD <LLD <LLD Kr-90 Ci <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD 5.92E-04 5.92E-04 Xe-133 Ci 2.48E-04 1.07E+00 5.54E-01 1.62E+00 Xe-133m Ci <LLD 4.54E-04 3.10E-04 7.64E-04 Xe-135 Ci <LLD 1.15E-04 <LLD 1.15E-04 Xe-135m Ci <LLD 1.54E-04 <LLD 1.54E-04 Xe-137 Ci <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD Total Ci 1.04E-01 1.29E+00 1.86E+00 3.25E+00
2. Iodines I-131 Ci 2.15E-06 <LLD 7.14E-06 9.29E-06 I-132 Ci <LLD 1.47E-05 1.79E-04 1.94E-04 I-133 Ci <LLD <LLD <LLD <LLD I-134 Ci <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD Total Ci 2.15E-06 1.47E-05 1.86E-04 2.03E-04 Table 11: Units 1, PVNGS ARERR 2021 Page 47

Table 39: Units 1, 2 and 3 Gaseous Effluents - Continuous and Batch - Particulates - Total By Unit Table 39:

Units 1, 2 and 3 Gaseous Effluents - Continuous and Batch - Particulates - Total By Unit Nuclides Released Unit Unit 1 Unit 2 Unit 3 Total

3. Particulates Ag-110m Ci <LLD <LLD 1.32E-06 1.32E-06 Ba-140 Ci <LLD <LLD <LLD <LLD Br-82 Ci <LLD 4.69E-06 3.80E-06 8.49E-06 Ce-141 Ci <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD Co-58 Ci <LLD 4.15E-05 8.49E-04 8.90E-04 Co-60 Ci <LLD 5.93E-05 3.79E-04 4.39E-04 Cr-51 Ci <LLD 2.25E-05 1.82E-03 1.84E-03 Cs-134 Ci <LLD <LLD <LLD <LLD Cs-136 Ci <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD Cs-138 Ci <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD 2.06E-05 2.06E-05 La-140 Ci <LLD <LLD <LLD <LLD Mn-54 Ci <LLD 2.66E-07 8.47E-05 8.50E-05 Mo-99 Ci <LLD <LLD <LLD <LLD Nb-95 Ci <LLD 2.09E-05 1.06E-03 1.08E-03 Os-191 Ci <LLD 1.44E-06 <LLD 1.44E-06 Rb-88 Ci <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD Ru-106 Ci <LLD <LLD <LLD <LLD Sb-122 Ci <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD 4.44E-06 4.44E-06 Sb-125 Ci <LLD <LLD <LLD <LLD Se-75 Ci <LLD <LLD <LLD <LLD Sn-113m Ci <LLD <LLD <LLD <LLD Sr-89 Ci <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD Te-123m Ci <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD <LLD Zr-95 Ci <LLD 1.20E-05 7.97E-04 8.09E-04 Total Ci <LLD 1.63E-04 5.02E-03 5.18E-03 Total > 8 days Ci <LLD 1.58E-04 5.02E-03 5.18E-03
4. Tritium H-3 Ci 4.84E+02 1.10E+03 1.00E+03 2.58E+03 PVNGS ARERR 2021 Page 48

Table 40: Estimation of Total Percent Error Noble Gases Iodines Particulates Tritium Error 25 25 25 25 Sample counting error 10 10 10 10 Counting system calibration error 5 5 5 5 Counting system source error 20 N/A N/A N/A Temperature/volume correction error 10 10 10 10 Process flow measuring device (1)

N/A 15 15 15 Sample flow measuring device N/A 5 N/A N/A Iodine collection efficiency error N/A N/A 10 N/A Plate-out error N/A N/A N/A 20 Bubbler collection efficiency error N/A N/A N/A 2 Sample volume transfer error (pipette)

N/A N/A N/A 2 Sample volume error (graduate)

Note 1 - % of full scale The estimated total error is calculated as follows:

Total Percent Error = ( + + + + )

Where En = Percent error associated with each contributing parameter.

Parameters contributing to errors in the measurement of gaseous effluents include: process flow rates, sample collection, analytical counting and tank volumes. The values in Table 40 (%) were used for error calculations.

Table 12: Effluent Monitoring Instrumentation Out of Service Greater Than 30 Days Table 41: Effluent Monitoring Instrumentation Out of Service Greater Than 30 Days Dates of Cause of Unit Instrument Explanation Inoperability Inoperability None PVNGS ARERR 2021 Page 49

Table 42: Solid Waste Summary Table 13: Solid Waste Summary 1.0 Solid Waste Shipped Offsite For Burial or Disposal (not irradiated fuel)

Table 1.a: Spent Resin, Filters, Sludge, Evaporator Bottoms, etc.

Waste Class Volume (ft3) Volume (m3) Curies Shipped Percent Error A 3.45E+03 9.77E+01 7.62E+01 2.50E+01 B 6.02E+02 1.71E+01 1.86E+02 2.50E+01 C 0.00E+00 0.00E+00 0.00E+00 N/A All 4.05E+03 1.15E+02 2.62E+02 2.50E+01 Table 1.b: Dry Compressible Waste, Contaminated Equipment, etc.

Waste Class Volume (ft3) Volume (m3) Curies Shipped Percent Error A 2.21E+04 6.27E+02 1.04E+00 2.50E+01 B 0.00E+00 0.00E+00 0.00E+00 N/A C 0.00E+00 0.00E+00 0.00E+00 N/A All 2.21E+04 6.27E+02 1.04E+00 2.50E+01 Table 1.c: Irradiated Components Waste Class Volume (ft3) Volume (m3) Curies Shipped Percent Error A 4.15E+02 1.17E+01 1.70E+01 2.50E+01 B 0.00E+00 0.00E+00 0.00E+00 N/A C 0.00E+00 0.00E+00 0.00E+00 N/A All 4.15E+02 1.17E+01 1.70E+01 2.50E+01 Table 1.d: Other Waste (Oil, Metal)

Waste Class Volume (ft3) Volume (m3) Curies Shipped Percent Error A 6.21E+02 1.76E+01 5.50E-02 2.50E+01 B 0.00E+00 0.00E+00 0.00E+00 N/A C 0.00E+00 0.00E+00 0.00E+00 N/A All 6.21E+02 1.76E+01 5.50E-02 2.50E+01 Table 1.e: Summary of All Waste Shipped Waste Class Volume (ft3) Volume (m3) Curies Shipped Percent Error A 2.66E+04 7.54E+02 9.43E+01 2.50E+01 B 6.02E+02 1.71E+01 1.86E+02 2.50E+01 C 0.00E+00 0.00E+00 0.00E+00 N/A All 2.72E+04 7.71E+02 2.80E+02 2.50E+01 PVNGS ARERR 2021 Page 50

2.0 Estimate of major nuclide composition Table 2.a: Spent Resin, Filters, Sludge, Evaporator bottoms, etc.

Nuclide Percent Abundance Curies Percent Error H-3 4.80E-03 1.26E+00 2.50E+01 C-14 1.90E-02 4.99E+00 2.50E+01 Cr-51 4.84E-06 1.27E-03 2.50E+01 Mn-54 2.63E-02 6.91E+00 2.50E+01 Fe-55 3.79E-01 9.93E+01 2.50E+01 Fe-59 4.99E-07 1.31E-04 2.50E+01 Co-57 1.24E-03 3.26E-01 2.50E+01 Co-58 2.07E-02 5.44E+00 2.50E+01 Co-60 1.34E-01 3.51E+01 2.50E+01 Ni-59 3.30E-03 8.66E-01 2.50E+01 Ni-63 3.68E-01 9.65E+01 2.50E+01 Zn-65 2.75E-04 7.22E-02 2.50E+01 Sr-89 2.09E-03 5.48E-01 2.50E+01 Sr-90 4.84E-04 1.27E-01 2.50E+01 Zr-95 1.70E-05 4.46E-03 2.50E+01 Nb-94 4.38E-06 1.15E-03 2.50E+01 Nb-95 3.53E-05 9.27E-03 2.50E+01 Tc-99 2.56E-04 6.71E-02 2.50E+01 Ag-108m 4.84E-06 1.27E-03 2.50E+01 Ag-110m 4.00E-03 1.05E+00 2.50E+01 Sn-113 4.23E-04 1.11E-01 2.50E+01 Sb-124 2.17E-05 5.69E-03 2.50E+01 Sb-125 2.92E-02 7.66E+00 2.50E+01 Cs-137 6.29E-03 1.65E+00 2.50E+01 Ce-144 1.95E-04 5.11E-02 2.50E+01 Pu-238 4.27E-05 1.12E-02 2.50E+01 Pu-239 1.67E-05 4.39E-03 2.50E+01 Pu-241 7.32E-04 1.92E-01 2.50E+01 Pu-242 3.18E-07 8.35E-05 2.50E+01 Am-241 6.06E-05 1.59E-02 2.50E+01 Am-243 2.55E-06 6.69E-04 2.50E+01 Cm-242 1.17E-06 3.08E-04 2.50E+01 Cm-243 2.86E-05 7.50E-03 2.50E+01 Total 2.62E+02 2.50E+01 PVNGS ARERR 2021 Page 51

Table 2.b: Dry Active Waste Nuclide Percent Abundance Curies Percent Error C-14 2.89E-03 3.02E-03 2.50E+01 Sc-46 2.92E-04 3.05E-04 2.50E+01 Cr-51 .36E-01 1.42E-01 2.50E+01 Mn-54 1.85E-02 1.93E-02 2.50E+01 Fe-55 2.11E-01 2.20E-01 2.50E+01 Fe-59 4.31E-03 4.50E-03 2.50E+01 Co-57 5.55E-04 5.79E-04 2.50E+01 Co-58 1.10E-01 1.15E-01 2.50E+01 Co-60 1.34E-01 1.40E-01 2.50E+01 Ni-63 1.36E-02 1.42E-02 2.50E+01 Zn-65 4.22E-03 4.38E-03 2.50E+01 Sr-89 7.50E-04 7.83E-04 2.50E+01 Sr-90 1.84E-04 1.91E-04 2.50E+01 Zr-95 1.28E-01 1.34E-01 2.50E+01 Nb-95 2.18E-01 2.28E-01 2.50E+01 Tc-99 1.99E-03 2.08E-03 2.50E+01 Ag-110m 2.61E-04 2.72E-04 2.50E+01 Sn-113 3.20E-03 3.34E-03 2.50E+01 Sb-124 1.99E-03 2.08E-03 2.50E+01 Sb-125 6.75E-03 7.05E-03 2.50E+01 Te-123m 2.38E-04 2.48E-04 2.50E+01 Cs-137 3.01E-04 3.14E-04 2.50E+01 Ce-144 1.15E-03 1.20E-03 2.50E+01 Hf-181 9.47E-04 9.89E-04 2.50E+01 Pu-238 2.16E-06 2.25E-06 2.50E+01 Pu-239 9.77E-08 1.02E-07 2.50E+01 Pu-241 2.20E-08 2.30E-08 2.50E+01 Am-241 1.69E-06 1.76E-06 2.50E+01 Cm-242 2.81E-06 2.93E-06 2.50E+01 Cm-243 1.40E-06 1.46E-06 2.50E+01 Total 1.04E+00 2.50E+01 PVNGS ARERR 2021 Page 52

Table 2.c: Irradiated Components Nuclide Percent Abundance Curies Percent Error H-3 5.11E-05 8.68E-04 2.50E+01 C-14 8.07E-05 1.37E-03 2.50E+01 Sc-46 1.28E-05 2.17E-04 2.50E+01 Cr-51 7.07E-02 1.20E+00 2.50E+01 Mn-54 3.66E-02 6.21E-01 2.50E+01 Fe-55 4.25E-01 7.21E+00 2.50E+01 Fe-59 4.18E-03 7.09E-02 2.50E+01 Co-57 1.14E-05 1.94E-04 2.50E+01 Co-58 3.31E-02 5.62E-01 2.50E+01 Co-60 3.98E-01 6.76E+00 2.50E+01 Ni-59 1.05E-04 1.79E-03 2.50E+01 Ni-63 2.01E-02 3.41E-01 2.50E+01 Zn-65 2.49E-04 4.23E-03 2.50E+01 Sr-89 1.38E-06 2.34E-05 2.50E+01 Sr-90 1.21E-06 2.06E-05 2.50E+01 Zr-95 4.25E-03 7.22E-02 2.50E+01 Nb-94 1.47E-06 2.49E-05 2.50E+01 Nb-95 7.30E-03 1.24E-01 2.50E+01 Tc-99 1.60E-06 2.71E-05 2.50E+01 Ag-110m 9.01E-06 1.53E-04 2.50E+01 Sn-113 8.78E-05 1.49E-03 2.50E+01 Sb-124 1.95E-04 3.31E-03 2.50E+01 Sb-125 1.15E-04 1.95E-03 2.50E+01 I-129 6.71E-08 1.14E-06 2.50E+01 Cs-137 5.15E-06 8.75E-05 2.50E+01 Ce-144 2.09E-05 3.55E-04 2.50E+01 Hf-181 3.19E-05 5.41E-04 2.50E+01 Total 1.70E+01 2.50E+01 Table 2.d: Other Waste: Oil, Metal Nuclide Percent Abundance Curies Percent Error Mn-54 1.31E-03 7.20E-05 2.50E+01 Fe-55 7.60E-01 4.18E-02 2.50E+01 Co-60 2.35E-01 1.29E-02 2.50E+01 Sb-125 2.51E-03 1.38E-04 2.50E+01 Cs-137 1.24E-03 6.80E-05 2.50E+01 Total 5.50E-02 2.50E+01 PVNGS ARERR 2021 Page 53

Table 2.e: Summary of All Waste Shipped Nuclide Percent Abundance Curies Percent Error H-3 4.50E-03 1.26E+00 2.50E+01 C-14 1.78E-02 4.99E+00 2.50E+01 Sc-46 1.86E-06 5.22E-04 2.50E+01 Cr-51 4.79E-03 1.34E+00 2.50E+01 Mn-54 2.69E-02 7.55E+00 2.50E+01 Fe-55 3.81E-01 1.07E+02 2.50E+01 Fe-59 2.69E-04 7.55E-02 2.50E+01 Co-57 1.17E-03 3.27E-01 2.50E+01 Co-58 2.18E-02 6.12E+00 2.50E+01 Co-60 1.50E-01 4.20E+01 2.50E+01 Ni-59 3.10E-03 8.68E-01 2.50E+01 Ni-63 3.45E-01 9.69E+01 2.50E+01 Zn-65 2.88E-04 8.07E-02 2.50E+01 Sr-89 1.96E-03 5.49E-01 2.50E+01 Sr-90 4.54E-04 1.27E-01 2.50E+01 Zr-95 7.51E-04 2.11E-01 2.50E+01 Nb-94 4.19E-06 1.17E-03 2.50E+01 Nb-95 1.29E-03 3.61E-01 2.50E+01 Tc-99 2.47E-04 6.92E-02 2.50E+01 Ag-108m 4.53E-06 1.27E-03 2.50E+01 Ag-110m 3.75E-03 1.05E+00 2.50E+01 Sn-113 4.13E-04 1.16E-01 2.50E+01 Sb-124 3.95E-05 1.11E-02 2.50E+01 Sb-125 2.74E-02 7.67E+00 2.50E+01 Te-123m 8.85E-07 2.48E-04 2.50E+01 I-129 4.07E-09 1.14E-06 2.50E+01 Cs-137 5.89E-03 1.65E+00 2.50E+01 Ce-144 1.88E-04 5.27E-02 2.50E+01 Hf-181 5.46E-06 1.53E-03 2.50E+01 Pu-238 4.00E-05 1.12E-02 2.50E+01 Pu-239 1.57E-05 4.39E-03 2.50E+01 Pu-241 6.85E-04 1.92E-01 2.50E+01 Pu-242 2.98E-07 8.35E-05 2.50E+01 Am-241 5.67E-05 1.59E-02 2.50E+01 Am-243 2.39E-06 6.69E-04 2.50E+01 Cm-242 1.11E-06 3.11E-04 2.50E+01 Cm-243 2.68E-05 7.50E-03 2.50E+01

 Total 2.80E+02 2.50E+01 PVNGS ARERR 2021 Page 54

3.0 Irradiated Fuel Shipments None.

4.0 Supplemental Information Table 4.a: Shipment Mode and Location Number of Shipments Mode of Transport Destination 10 Highway Energy Solutions, UT 33 Highway Waste Control Specialists, TX Table 4.b: Shipping Container Characteristics Number of Containers Type of Waste Container Type Solidification Agent 22 Dry Active Waste 20' Sealand None 2 Dry Active Waste Metal Liner None 1 Dry Active Waste Intermodal None 12 Resin Polyethylene Liner None 4 Sludge Metal Liner None 9 Concentrates Metal Liner None 2 Irradiated Components Metal Liner None 2 Other: Oil Metal Liner None 1 Other: Metal 20' Sealand None Table 4.c: Container Volume in m3 by Waste Class Type of Waste Class A Class B Class C Spent Resin, Filters, Sludge, Evaporator bottoms, etc. 9.77E+01 1.71E+01 0.00E+00 Dry Active Waste 6.27E+02 0.00E+00 0.00E+00 Irradiated Components 1.71E+01 0.00E+00 0.00E+00 Other Waste: Oil 1.76E+01 0.00E+00 0.00E+00 PVNGS ARERR 2021 Page 55

Table 4.d: Container Activity in Ci by Waste Class Type of Waste Class A Class B Class C Spent Resin, Filters, Sludge, Evaporator 7.62E+01 1.86E+02 0.00E+00 bottoms, etc.

Dry Active Waste 1.04E+00 0.00E+00 0.00E+00 Irradiated Components 1.70E+01 0.00E+00 0.00E+00 Other Waste: Oil 5.50E-02 0.00E+00 0.00E+00 Table 4.e: Principle Radionuclides Refer to Tables 2.a - 2.e.

Table 4.f Source of Waste and Processing Employed Type of Waste Source Mechanical filters: no processing.

Spent Resin, Filters, Sludge, Evaporator Concentrates as a liquid: no processing, bottoms, etc.

Resin: dewatered prior to shipment Non-compacted dry active waste: no Dry Active Waste processing employed Irradiated Components: no Irradiated Components processing employed Oil: no processing employed, Other Waste: Oil Metal: no processing employed Table 4.g Type of Container Type of Waste Type of Container Spent Resin, Filters, Sludge, Evaporator (25) General Design Containers bottoms, etc.

Dry Active Waste (25) General Design Containers Irradiated Components (2) General Design Containers Other Waste: Oil (3) General Design Containers PVNGS ARERR 2021 Page 56

Table 4.h Solidification Agent or Absorbent Type of Waste Solidification Agent/Absorbent Spent Resin, Filters, Sludge, Evaporator No solidification agents or absorbents used bottoms, etc. to process material No solidification agents or absorbents used Dry Active Waste to process material No solidification agents or absorbents used Irradiated Components to process material No solidification agents or absorbents used Other Waste: Oil to process material PVNGS ARERR 2021 Page 57

APPENDIX B: DOSE CALCULATIONS PVNGS ARERR 2021 Page 58

GASEOUS EFFLUENT DOSE CALCULATIONS Doses to the maximum individual and the surrounding population resulting from the release of radioactive material in gaseous effluents from the Palo Verde Nuclear Generating Station were calculated using the GASPAR computer program. The radionuclides considered in the dose calculations were Tritium, Iodine-131, Iodine-132, Iodine-133, Iodine-135, all noble gases, and particulates having a half-life greater than eight days and for which dose factors are contained in NUREG-0172. Locations selected for individual dose calculations included for each sector, the site boundary, and within five miles, if present, the nearest residence, the nearest garden, and the nearest milk animal. GASPAR implements the radiological dose models of Regulatory Guide 1.109 to determine the radiation exposure to man from four principal atmospheric exposure pathways:

plume, ground deposition, inhalation, and ingestion. Doses to the maximum individual and the population were calculated as a function of age group and pathway for significant body organs.

The Energy Information Center was relocated to an offsite location in 2011; however, Table 43 provides doses to the historical location of the Energy Information Center for comparison purposes.

Table 44 presents the Integrated Population Dose for 2021.

Table 45 summarizes the individual doses and compares the result to PVNGS ODCM Requirement limits. The site boundary and residence locations for which data are presented represent the highest annual doses.

Based on results obtained by placing thermoluminescent dosimeters (TLDs) on the site boundary in each sector, the net dose for this reporting period, from direct-radiation, (plume and ground deposition) from all three units was indistinguishable from preoperational values of 8 - 14 R/hr (17 - 30 mR/Std Qtr).

LIQUID EFFLUENT DOSE CALCULATIONS There were no liquid effluents associated with the operation of this facility.

DOSE CALCULATION MODELS The GASPAR computer code was used to evaluate the radiological consequences of the routine release of gaseous effluents. GASPAR implements the dose calculation methodologies of Regulatory Guide 1.109, Revision 1.

Source terms for each quarter are combined with station-specific demographic data and each quarters atmospheric diffusion estimates for gaseous dose calculations.

PVNGS ARERR 2021 Page 59

Atmospheric diffusion estimates are generated by the XOQDOQ computer code using onsite meteorological data as input. Additional input to GASPAR includes the following site-specific data:

0 to 5-mile nearest residence, milk animal and garden in each of the 16 compass sectors, based on the 2021 Land Use Census.

0 to 10-mile population from the PVNGS Emergency Plan, Rev 72.

The 10 to 50-mile population distribution was established using data from the US Census Zip Code Tabulating Areas (ZCTA). The population distribution of metropolitan Phoenix greater than 50 miles from PVNGS is conservatively included in the 40 to 50-mile sectors (N=1,434; NNE=2,301; NE=66,655; ENE=470,712; E=1,636,641; ESE=138,586; SSE=3,391, S=3,556; WNW=4,046).

Absolute humidity of 6 g/m3 from the PVNGS UFSAR, Table 2.3-16.

The fraction of the year that vegetables are grown (0.667) from the PVNGS ER-OL, Section 2.1.3.4, Table 2.1-8.

The fraction of daily feed derived from pasture while on pasture (0.35) and length of grazing season for milk animals beyond 5 miles (0.75) from the PVNGS ER-OL, Section 2.1.3.4.3.

The fraction of daily feed derived from pasture while on pasture (0.05) and length of grazing season for meat animals (0.25) from the PVNGS ER-OL, Section 2.1.3.4.4.

There were ten (10) sectors reported as containing milk animal (goat or cow) locations within five (5) miles. For calculation purposes these milk animals are assumed to be fed 100% on pasture grass during the year.

Other values used for input to GASPAR are default values from Regulatory Guide 1.109, Rev. 1.

PVNGS ARERR 2021 Page 60

Table 43: Doses to Special Location (EIC)

(mrem) T.BODY GI-TRACT BONE LIVER KIDNEY THYROID LUNG SKIN 1ST QUARTER ADULT 3.79E-01 3.79E-01 4.16E-03 3.79E-01 3.79E-01 3.79E-01 3.79E-01 3.81E-01 TEEN 3.81E-01 3.81E-01 4.16E-03 3.81E-01 3.81E-01 3.81E-01 3.82E-01 3.84E-01 CHILD 3.38E-01 3.38E-01 4.16E-03 3.38E-01 3.38E-01 3.38E-01 3.38E-01 3.40E-01 INFANT 1.96E-01 1.96E-01 4.16E-03 1.96E-01 1.96E-01 1.96E-01 1.96E-01 1.99E-01 2ND QUARTER ADULT 3.95E-01 3.95E-01 9.06E-03 3.95E-01 3.95E-01 3.95E-01 3.96E-01 3.97E-01 TEEN 3.97E-01 3.97E-01 9.07E-03 3.97E-01 3.97E-01 3.97E-01 3.98E-01 3.99E-01 CHILD 3.51E-01 3.51E-01 9.08E-03 3.51E-01 3.51E-01 3.51E-01 3.54E-01 3.53E-01 INFANT 2.07E-01 2.07E-01 9.07E-03 2.07E-01 2.07E-01 2.07E-01 2.07E-01 2.08E-01 1ST SEMI-ANNUAL ADULT 7.74E-01 7.74E-01 1.32E-02 7.74E-01 7.74E-01 7.74E-01 7.75E-01 7.78E-01 TEEN 7.79E-01 7.79E-01 1.32E-02 7.79E-01 7.79E-01 7.79E-01 7.80E-01 7.83E-01 CHILD 6.89E-01 6.89E-01 1.32E-02 6.89E-01 6.89E-01 6.89E-01 6.91E-01 6.93E-01 INFANT 4.03E-01 4.03E-01 1.32E-02 4.03E-01 4.03E-01 4.03E-01 4.04E-01 4.07E-01 3RD QUARTER ADULT 2.91E-01 2.91E-01 3.39E-04 2.91E-01 2.91E-01 2.91E-01 2.91E-01 2.91E-01 TEEN 2.92E-01 2.92E-01 3.39E-04 2.92E-01 2.92E-01 2.92E-01 2.92E-01 2.93E-01 CHILD 2.59E-01 2.59E-01 3.39E-04 2.59E-01 2.59E-01 2.59E-01 2.59E-01 2.59E-01 INFANT 1.49E-01 1.49E-01 3.39E-04 1.49E-01 1.49E-01 1.49E-01 1.49E-01 1.49E-01 4TH QUARTER ADULT 5.96E-01 5.96E-01 2.71E-03 5.96E-01 5.96E-01 5.96E-01 5.97E-01 5.97E-01 TEEN 6.01E-01 6.01E-01 2.71E-03 6.01E-01 6.01E-01 6.01E-01 6.01E-01 6.02E-01 CHILD 5.32E-01 5.32E-01 2.71E-03 5.32E-01 5.32E-01 5.32E-01 5.32E-01 5.33E-01 INFANT 3.06E-01 3.06E-01 2.71E-03 3.06E-01 3.06E-01 3.06E-01 3.06E-01 2.30E-01 2ND SEMI-ANNUAL ADULT 8.87E-01 8.87E-01 3.05E-03 8.87E-01 8.87E-01 8.87E-01 8.88E-01 8.88E-01 TEEN 8.93E-01 8.93E-01 3.05E-03 8.93E-01 8.93E-01 8.93E-01 8.93E-01 8.95E-01 CHILD 7.90E-01 7.90E-01 3.05E-03 7.90E-01 7.90E-01 7.90E-01 7.90E-01 7.92E-01 INFANT 4.55E-01 4.55E-01 3.05E-03 4.55E-01 4.55E-01 4.55E-01 4.55E-01 3.79E-01 ANNUAL ADULT 1.66E+00 1.66E+00 1.63E-02 1.66E+00 1.66E+00 1.66E+00 1.66E+00 1.67E+00 TEEN 1.67E+00 1.67E+00 1.63E-02 1.67E+00 1.67E+00 1.67E+00 1.67E+00 1.68E+00 CHILD 1.48E+00 1.48E+00 1.63E-02 1.48E+00 1.48E+00 1.48E+00 1.48E+00 1.49E+00 INFANT 8.58E-01 8.58E-01 1.63E-02 8.58E-01 8.58E-01 8.58E-01 8.59E-01 7.86E-01 The Energy Information Center (EIC) was repurposed as Building C after the Palo Verde Energy Education Center was opened in Buckeye, AZ. Building C is located onsite 0.45 Mile S from Unit 1, 0.29 Mile SSE from Unit 2, and 0.20 Mile ESE From Unit 3 PVNGS ARERR 2021 Page 61

Table 44: Integrated Population Dose (rem)

January to March Pathway Total Body GI-Tract Bone Liver Kidney Thyroid Lung Skin Plume 7.57E-04 7.57E-04 7.57E-04 7.57E-04 7.57E-04 7.57E-04 7.57E-04 1.43E-03 0.01% 0.01% 85.08% 0.01% 0.01% 0.01% 0.01% 0.02%

Ground 1.32E-04 1.32E-04 1.32E-04 1.32E-04 1.32E-04 1.32E-04 1.32E-04 1.56E-04 0.00% 0.00% 14.87% 0.00% 0.00% 0.00% 0.00% 0.00%

Inhalation 4.08E+00 4.08E+00 3.14E-07 4.08E+00 4.08E+00 4.08E+00 4.08E+00 4.08E+00 44.65% 44.65% 0.04% 44.65% 44.65% 44.65% 44.65% 44.65%

Vegetation 4.24E+00 4.24E+00 1.44E-07 4.24E+00 4.24E+00 4.24E+00 4.24E+00 4.24E+00 46.33% 46.33% 0.02% 46.33% 46.33% 46.33% 46.33% 46.33%

Cow Milk 6.12E-01 6.12E-01 2.16E-08 6.12E-01 6.12E-01 6.12E-01 6.12E-01 6.12E-01 6.69% 6.69% 0.00% 6.69% 6.69% 6.69% 6.69% 6.69%

Meat 2.12E-01 2.12E-01 2.94E-11 2.12E-01 2.12E-01 2.12E-01 2.12E-01 2.12E-01 2.32% 2.32% 0.00% 2.32% 2.32% 2.32% 2.32% 2.32%

Total Integrated 9.15E+00 9.15E+00 8.89E-04 9.15E+00 9.15E+00 9.15E+00 9.15E+00 9.15E+00 Population Dose Per Capita Dose 1.94E-06 1.94E-06 1.89E-10 1.94E-06 1.94E-06 1.94E-06 1.94E-06 1.94E-06 (rem) (1)

April through June Pathway Total Body GI-Tract Bone Liver Kidney Thyroid Lung Skin Plume 3.67E-04 3.67E-04 3.67E-04 3.67E-04 3.67E-04 3.67E-04 3.67E-04 1.06E-03 0.00% 0.00% 2.99% 0.00% 0.00% 0.00% 0.00% 0.01%

Ground 1.17E-02 1.17E-02 1.17E-02 1.17E-02 1.17E-02 1.17E-02 1.17E-02 1.37E-02 0.13% 0.13% 95.23% 0.13% 0.13% 0.13% 0.13% 0.16%

Inhalation 4.16E+00 4.16E+00 2.13E-04 4.16E+00 4.16E+00 4.16E+00 4.17E+00 4.16E+00 48.02% 48.02% 1.74% 48.02% 48.02% 48.02% 48.08% 48.01%

Vegetation 3.74E+00 3.74E+00 4.37E-06 3.74E+00 3.74E+00 3.74E+00 3.74E+00 3.74E+00 43.20% 43.21% 0.04% 43.20% 43.20% 43.20% 43.15% 43.19%

Cow Milk 5.77E-01 5.77E-01 1.67E-07 5.77E-01 5.77E-01 5.77E-01 5.77E-01 5.77E-01 6.66% 6.66% 0.00% 6.66% 6.66% 6.66% 6.65% 6.66%

Meat 1.71E-01 1.72E-01 1.22E-07 1.71E-01 1.71E-01 1.71E-01 1.71E-01 1.71E-01 1.98% 1.98% 0.00% 1.98% 1.98% 1.98% 1.98% 1.98%

Total Integrated 8.66E+00 8.67E+00 1.23E-02 8.66E+00 8.66E+00 8.66E+00 8.67E+00 8.67E+00 Population Dose Per Capita Dose 1.84E-06 1.84E-06 2.61E-09 1.84E-06 1.84E-06 1.84E-06 1.84E-06 1.84E-06 (rem) (1)

PVNGS ARERR 2021 Page 62

Table 44: Integrated Population Dose (rem)

(continued)

January through June Pathway Total Body GI-Tract Bone Liver Kidney Thyroid Lung Skin Plume 1.12E-03 1.12E-03 1.12E-03 1.12E-03 1.12E-03 1.12E-03 1.12E-03 2.49E-03 0.01% 0.01% 8.55% 0.01% 0.01% 0.01% 0.01% 0.01%

Ground 1.18E-02 1.18E-02 1.18E-02 1.18E-02 1.18E-02 1.18E-02 1.18E-02 1.39E-02 0.07% 0.07% 89.79% 0.07% 0.07% 0.07% 0.07% 0.08%

Inhalation 8.25E+00 8.25E+00 2.13E-04 8.25E+00 8.25E+00 8.25E+00 8.26E+00 8.25E+00 46.29% 46.29% 1.62% 46.29% 46.29% 46.29% 46.32% 46.28%

Vegetation 7.98E+00 7.98E+00 4.51E-06 7.98E+00 7.98E+00 7.98E+00 7.98E+00 7.98E+00 44.81% 44.81% 0.03% 44.81% 44.81% 44.81% 44.78% 44.80%

Cow Milk 1.19E+00 1.19E+00 1.89E-07 1.19E+00 1.19E+00 1.19E+00 1.19E+00 1.19E+00 6.67% 6.67% 0.00% 6.67% 6.67% 6.67% 6.67% 6.67%

Meat 3.84E-01 3.84E-01 1.22E-07 3.84E-01 3.84E-01 3.84E-01 3.84E-01 3.84E-01 2.15% 2.15% 0.00% 2.15% 2.15% 2.15% 2.15% 2.15%

Total Integrated 1.78E+01 1.78E+01 1.31E-02 1.78E+01 1.78E+01 1.78E+01 1.78E+01 1.78E+01 Population Dose Per Capita Dose 3.77E-06 3.77E-06 2.78E-09 3.77E-06 3.77E-06 3.77E-06 3.77E-06 3.77E-06 (rem) (1)

July through September Pathway Total Body GI-Tract Bone Liver Kidney Thyroid Lung Skin Plume 6.91E-05 6.91E-05 6.91E-05 6.91E-05 6.91E-05 6.91E-05 6.91E-05 1.26E-04 0% 0.00% 100.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Ground 3.57E-21 3.57E-21 3.57E-21 3.57E-21 3.57E-21 3.57E-21 3.57E-21 4.18E-21 0% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.00%

Inhalation 1.29E+00 1.29E+00 0.00E+00 1.29E+00 1.29E+00 1.29E+00 1.29E+00 1.29E+00 41.26% 41.26% 0.00% 41.26% 41.26% 41.26% 41.26% 41.26%

Vegetation 1.58E+00 1.58E+00 0.00E+00 1.58E+00 1.58E+00 1.58E+00 1.58E+00 1.58E+00 50.79% 50.79% 0.00% 50.79% 50.79% 50.79% 50.79% 50.79%

Cow Milk 1.73E-01 1.73E-01 0.00E+00 1.73E-01 1.73E-01 1.73E-01 1.73E-01 1.73E-01 5.55% 5.55% 0.00% 5.55% 5.55% 5.55% 5.55% 5.55%

Meat 7.48E-02 7.48E-02 0.00E+00 7.48E-02 7.48E-02 7.48E-02 7.48E-02 7.48E-02 2.4% 2.40% 0.00% 2.40% 2.40% 2.40% 2.40% 2.40%

Total Integrated 3.12E+00 3.12E+00 6.91E-05 3.12E+00 3.12E+00 3.12E+00 3.12E+00 3.12E+00 Population Dose Per Capita Dose 6.62E-07 6.62E-07 1.47E-11 6.62E-07 6.62E-07 6.62E-07 6.62E-07 6.62E-07 (rem) (1)

PVNGS ARERR 2021 Page 63

Table 44 Integrated Population Dose (rem)

(continued)

October through December Pathway Total Body GI-Tract Bone Liver Kidney Thyroid Lung Skin Plume 9.70E-04 9.70E-04 9.70E-04 9.70E-04 9.70E-04 9.70E-04 9.70E-04 3.21E-03 0.01% .01% 65.33% 0.01% 0.01% 0.01% 0.01% 0.03%

Ground 5.09E-04 5.09E-04 5.09E-04 5.09E-04 5.09E-04 5.09E-04 5.09E-04 5.99E-04

.01% 0.01% 34.27% 0.01% 0.01% 0.01% 0.01% 0.01%

Inhalation 3.74E+00 3.74E+00 5.84E-06 3.74E+00 3.74E+00 3.74E+00 3.74E+00 3.74E+00 39.20% 39.20% 0.39% 39.20% 39.20% 39.20% 39.20% 39.19%

Vegetation 4.99E+00 4.99E+00 1.77E-08 4.99E+00 4.99E+00 4.99E+00 4.99E+00 4.99E+00 52.36% 52.36% 0.00% 52.36% 52.36% 52.36% 52.35% 52.35%

Cow Milk 5.55E-01 5.55E-01 1.02E-10 5.55E-01 5.55E-01 5.55E-01 5.55E-01 5.55E-01 5.82% 5.82% 0.00% 5.82% 5.82% 5.82% 5.82% 5.82%

Meat 2.48E-01 2.48E-01 1.27E-09 2.48E-01 2.48E-01 2.48E-01 2.48E-01 2.48E-01 2.60% 2.60% 0.00% 2.60% 2.60% 2.60% 2.60% 2.60%

Total Integrated 9.53E+00 9.53E+00 1.49E-03 9.53E+00 9.53E+00 9.53E+00 9.53E+00 9.54E+00 Population Dose Per Capita Dose 2.02E-06 2.02E-06 3.16E-10 2.02E-06 2.02E-06 2.02E-06 2.02E-06 2.02E-06 (rem) (1)

July through December Pathway Total Body GI-Tract Bone Liver Kidney Thyroid Lung Skin Plume 1.04E-03 1.04E-03 1.04E-03 1.04E-03 1.04E-03 1.04E-03 1.04E-03 3.34E-03 0.01% 0.01% 66.87% 0.01% 0.01% 0.01% 0.01% 0.03%

Ground 5.09E-04 5.09E-04 5.09E-04 5.09E-04 5.09E-04 5.09E-04 5.09E-04 5.99E-04 0.00% 0.00% 32.75% 0.00% 0.00% 0.00% 0.00% 0.00%

Inhalation 5.02E+00 5.02E+00 5.84E-06 5.02E+00 5.02E+00 5.02E+00 5.02E+00 5.02E+00 39.71% 39.71% 0.38% 39.71% 39.71% 39.71% 39.71% 39.70%

Vegetation 6.58E+00 6.58E+00 1.77E-08 6.58E+00 6.58E+00 6.58E+00 6.58E+00 6.58E+00 51.97% 51.97% 0.00% 51.97% 51.97% 51.97% 51.97% 51.96%

Cow Milk 7.28E-01 7.28E-01 1.02E-10 7.28E-01 7.28E-01 7.28E-01 7.28E-01 7.28E-01 5.76% 5.76% 0.00% 5.76% 5.76% 5.76% 5.76% 5.76%

Meat 3.23E-01 3.23E-01 1.27E-09 3.23E-01 3.23E-01 3.23E-01 3.23E-01 3.23E-01 2.55% 2.55% 0.00% 2.55% 2.55% 2.55% 2.55% 2.55%

Total Integrated 1.27E+01 1.27E+01 1.55E-03 1.27E+01 1.27E+01 1.27E+01 1.27E+01 1.27E+01 Population Dose Per Capita Dose 2.69E-06 2.69E-06 3.29E-10 2.69E-06 2.69E-06 2.69E-06 2.69E-06 2.69E-06 (rem) (1)

PVNGS ARERR 2021 Page 64

Table 44: Integrated Population Dose (rem)

(continued)

January through December Pathway Total Body GI-Tract Bone Liver Kidney Thyroid Lung Skin Plume 2.16E-03 2.16E-03 2.16E-03 2.16E-03 2.16E-03 2.16E-03 2.16E-03 5.82E-03 0.01% 0.01% 14.72% 0.01% 0.01% 0.01% 0.01% 0.02%

Ground 1.23E-02 1.23E-02 1.23E-02 1.23E-02 1.23E-02 1.23E-02 1.23E-02 1.45E-02 0.04% 0.04% 83.76% 0.04% 0.04% 0.04% 0.04% 0.05%

Inhalation 1.33E+01 1.33E+01 2.19E-04 1.33E+01 1.33E+01 1.33E+01 1.33E+01 1.33E+01 43.56% 43.55% 1.49% 43.56% 43.56% 43.56% 43.58% 43.55%

Vegetation 1.46E+01 1.46E+01 4.53E-06 1.46E+01 1.46E+01 1.46E+01 1.46E+01 1.46E+01 47.78% 47.79% 0.03% 47.78% 47.78% 47.78% 47.77% 47.78%

Cow Milk 1.92E+00 1.92E+00 1.89E-07 1.92E+00 1.92E+00 1.92E+00 1.92E+00 1.92E+00 6.29% 6.29% 0.00% 6.29% 6.29% 6.29% 6.29% 6.29%

Meat 7.06E-01 7.06E-01 1.23E-07 7.06E-01 7.06E-01 7.06E-01 7.06E-01 7.06E-01 2.32% 2.32% 0.00% 2.32% 2.32% 2.32% 2.32% 2.32%

Total Integrated 3.05E+01 3.05E+01 1.47E-02 3.05E+01 3.05E+01 3.05E+01 3.05E+01 3.05E+01 Population Dose Per Capita Dose 6.47E-06 6.47E-06 3.12E-09 6.47E-06 6.47E-06 6.47E-06 6.47E-06 6.47E-06 (rem) (1)

(1)  : Person-rem total divided by 50-mile population of 4,716,000 PVNGS ARERR 2021 Page 65

Table 45: Summary of Individual Doses for 2021 Radiation Doses At And Beyond The Site Boundary Table 45:

Summary of Individual Doses for 2021 Radiation Doses At And Beyond The Site Boundary Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Year total Gamma Air Dose mrad 2.47E-03 1.48E-04 1.22E-04 5.07E-04 3.22E-03 ODCM Req 4.1 Limit mrad 5.00E+00 5.00E+00 5.00E+00 5.00E+00 1.00E+01

% ODCM Limit  % 4.94E-02 2.96E-03 2.44E-03 1.01E-02 3.22E-02 Beta Air Dose mrad 8.85E-04 1.02E-04 4.36E-05 5.16E-04 1.54E-03 ODCM Req 4.1 Limit mrad 1.00E+01 1.00E+01 1.00E+01 1.00E+01 2.00E+01

% ODCM Limit  % 8.85E-03 1.02E-03 4.36E-04 5.16E-03 7.70E-03 Maximum Individual Total Body mrem 1.64E-03 9.69E-05 8.09E-05 3.26E-04 2.13E-03 Skin mrem 2.64E-03 1.69E-04 1.30E-04 6.14E-04 3.53E-03 Receptor Location From Each PVNGS Unit Unit 1 miles 1.70 SSE 1.70 SSE 1.27 SE 1.70 SSE 1.70 SSE Unit 2 miles 1.88 SSE 1.88 SSE 1.31 SE 1.88 SSE 1.88 SSE Unit 3 miles 1.73 SSE 1.73 SSE 1.40 SE 1.73 SSE 1.73 SSE Maximum Organ Dose(1) From All Radionuclides Age Infant Infant Infant Infant Infant Organ Bone Bone Bone Bone Bone mrem 1.81E+00 1.33E+00 8.62E-01 2.16E+00 5.13E+00 ODCM Req. 4.2 Limit mrem 7.50E+00 7.50E+00 7.50E+00 7.50E+00 1.50E+01

% ODCM Limit(2)  % 2.41E+01 1.77E+01 1.15E+01 2.88E+01 3.42E+01 Receptor Location From Each PVNGS Unit Unit 1 miles 3.91 SE 2.85 NE 1.30 WSW 3.91 SE 3.91 SE Unit 2 miles 3.92 SE 3.08 NE 1.08 WSW 3.92 SE 3.92 SE Unit 3 miles 3.87 ESE 3.30 NE 0.93 WSW 3.87 ESE 3.87 ESE Maximum Organ Dose(1) From All Radionuclides Excluding C-14 Age Infant Infant Infant Infant Infant Organ Thyroid (2) Thyroid (2) Thyroid (2) Lung Thyroid (2) mrem 1.55E-01 2.62E-01 1.27E-01 2.11E-01 5.92E-01 ODCM Req. 4.2 Limit mrem 7.50E+00 7.50E+00 7.50E+00 7.50E+00 1.50E+01

% ODCM Limit(2)  % 2.07E+00 3.49E+00 1.69E+00 2.81E+00 3.95E+00 Receptor Location From Each PVNGS Unit Unit 1 miles 1.94 E 2.85 NE 1.30 WSW 3.91 SE 1.94 E Unit 2 miles 2.12 ENE 3.08 NE 1.08 WSW 3.92 SE 2.12 ENE Unit 3 miles 2.25 ENE 3.30 NE 0.93 WSW 3.87 ESE 2.25 ENE Organ Dose from tritium only for Unit 2 mrem 1.55E-01 2.61E-01 1.27E-01 2.10E-01 5.91E-01 location above Fraction of organ dose from tritium only  % 100.00 99.62 100.00 99.53 99.83 for Unit 2 location above X/Q for Unit 2 location above sec/m3 1.49E-06 1.26E-06 8.39E-07 2.52E-06 1.05E-06 D/Q for Unit 2 location above m-2 1.61E-09 3.31E-09 3.69E-09 5.80E-10 1.78E-09 (1) Excluding skin (2) ODCM Requirement 5.1 has higher limits than ODCM Requirement 4.2; therefore, the percent of limits are more conservative based on ODCM Requirement 4.2 than on ODCM Requirement 5.1 PVNGS ARERR 2021 Page 66

APPENDIX C: NEI 07-07 GROUNDWATER PROTECTION INITIATIVE SAMPLING PVNGS ARERR 2021 Page 67

Figure 1. Onsite Well Locations.

PVNGS ARERR 2021 Page 68

Table 46: 2021 NEI 07-07 Ground Water Protection Initiative PVNGS Well Data Concentration Monitoring Well ID Sample ID Sample Date Radionuclide (pCi/L)

APP-10 PV-APP-10-0221 - Cesium-134 -

APP-10 PV-APP-10-0221 - Cesium-137 -

APP-10 PV-APP-10-0221 - Cobalt-60 -

APP-10 PV-APP-10-0221 02/25/2021 Tritium 401 APP-10 PV-APP-10-0421 - Cesium-134 -

APP-10 PV-APP-10-0421 - Cesium-137 -

APP-10 PV-APP-10-0421 - Cobalt-60 -

APP-10 PV-APP-10-0421 04/29/2021 Tritium 433 APP-10 PV-APP-10-0721 - Cesium-134 -

APP-10 PV-APP-10-0721 - Cesium-137 -

APP-10 PV-APP-10-0721 - Cobalt-60 -

APP-10 PV-APP-10-0721 07/08/2021 Tritium 373 APP-10 PV-APP-10-1121 11/03/2021 Cesium-134 5.56 APP-10 PV-APP-10-1121 11/03/2021 Cesium-137 7.3 APP-10 PV-APP-10-1121 11/03/2021 Cobalt-60 6.55 APP-10 PV-APP-10-1121 11/03/2021 Tritium 408 APP-12 PV-APP-12-0221 - Cesium-134 -

APP-12 PV-APP-12-0221 - Cesium-137 -

APP-12 PV-APP-12-0221 - Cobalt-60 -

APP-12 PV-APP-12-0221 02/25/2021 Tritium 401 APP-12 PV-APP-12-0421 - Cesium-134 -

APP-12 PV-APP-12-0421 - Cesium-137 -

APP-12 PV-APP-12-0421 - Cobalt-60 -

APP-12 PV-APP-12-0421 04/29/2021 Tritium 434 APP-12 PV-APP-12-0721 - Cesium-134 -

APP-12 PV-APP-12-0721 - Cesium-137 -

APP-12 PV-APP-12-0721 - Cobalt-60 -

APP-12 PV-APP-12-0721 07/08/2021 Tritium 372 APP-12 PV-APP-12-1121 11/03/2021 Cesium-134 7.07 APP-12 PV-APP-12-1121 11/03/2021 Cesium-137 7.89 APP-12 PV-APP-12-1121 11/03/2021 Cobalt-60 6.85 APP-12 PV-APP-12-1121 11/03/2021 Tritium 422 APP-15 PV-APP-15-1121 - Cesium-134 Pump Failure(1)

APP-15 PV-APP-15-1121 - Cesium-137 APP-15 PV-APP-15-1121 - Cobalt-60 APP-15 PV-APP-15-1121 - Tritium APP-22 PV-APP-22-1121 11/02/2021 Cesium-134 9.07 APP-22 PV-APP-22-1121 11/02/2021 Cesium-137 13.8 APP-22 PV-APP-22-1121 11/02/2021 Cobalt-60 14.9 APP-10 PV-APP-10-0221 - Cesium-134 -

APP-10 PV-APP-10-0221 - Cesium-137 -

APP-22 PV-APP-22-1121 11/02/2021 Tritium 375 (1) - Pump failure, no sample obtained (CR.21-08136)

PVNGS ARERR 2021 Page 69

Table 46: 2021 NEI 07-07 Ground Water Protection Initiative PVNGS Well Data (Continued)

Concentration Monitoring Well ID Sample ID Sample Date Radionuclide (pCi/L)

APP-9 PV-APP-9-0221 - Cesium-134 -

APP-9 PV-APP-9-0221 - Cesium-137 -

APP-9 PV-APP-9-0221 - Cobalt-60 -

APP-9 PV-APP-9-0221 02/25/2021 Tritium 401 APP-9 PV-APP-9-0421 - Cesium-134 -

APP-9 PV-APP-9-0421 - Cesium-137 -

APP-9 PV-APP-9-0421 - Cobalt-60 -

APP-9 PV-APP-9-0421 04/29/2021 Tritium 434 APP-9 PV-APP-9-0721 - Cesium-134 -

APP-9 PV-APP-9-0721 - Cesium-137 -

APP-9 PV-APP-9-0721 - Cobalt-60 -

APP-9 PV-APP-9-0721 07/08/2021 Tritium 373 APP-9 PV-APP-9-1121 11/03/2021 Cesium-134 4.97 APP-9 PV-APP-9-1121 11/03/2021 Cesium-137 6.07 APP-9 PV-APP-9-1121 11/03/2021 Cobalt-60 5.69 APP-9 PV-APP-9-1121 11/03/2021 Tritium 397 PV-14H PV-PV-14H-1121 11/02/2021 Cesium-134 4.94 PV-14H PV-PV-14H-1121 11/02/2021 Cesium-137 5.96 PV-14H PV-PV-14H-1121 11/02/2021 Cobalt-60 5.93 PV-14H PV-PV-14H-1121 11/02/2021 Tritium 374 PV-34H PV-PV-34H-1121 11/03/2021 Cesium-134 6.74 PV-34H PV-PV-34H-1121 11/03/2021 Cesium-137 9.04 PV-34H PV-PV-34H-1121 11/03/2021 Cobalt-60 8.62 PV-34H PV-PV-34H-1121 11/03/2021 Tritium 418 PV-R2AR PV-PV-R2AR-0421 04/28/2021 Cesium-134 4.83 PV-R2AR PV-PV-R2AR-0421 04/28/2021 Cesium-137 5.5 PV-R2AR PV-PV-R2AR-0421 04/28/2021 Cobalt-60 5.6 PV-R2AR PV-PV-R2AR-0421 04/28/2021 Tritium 434 PV-R2AR PV-PV-R2AR-1121 11/04/2021 Cesium-134 5.01 PV-R2AR PV-PV-R2AR-1121 11/04/2021 Cesium-137 6.14 PV-R2AR PV-PV-R2AR-1121 11/04/2021 Cobalt-60 6.1 PV-R2AR PV-PV-R2AR-1121 11/04/2021 Tritium 381 APP-4R PV-APP-4R-1121 11/02/2021 Cesium-134 4.75 APP-4R PV-APP-4R-1121 11/02/2021 Cesium-137 8.86 APP-4R PV-APP-4R-1121 11/02/2021 Colbalt-60 9.39 APP-4R PV-APP-4R-1121 11/02/2021 Tritium 372 PVNGS ARERR 2021 Page 70

APPENDIX D: ADJUSTED 2021 PERMITS PVNGS ARERR 2021 Page 71

Table 47: Adjusted 2021 Permits Permit Reason for Adjustment Permits 20211048, 20211063, 20211067, 20211086, 20211131, 20211132, Various 20212120, 20212121, 20213017, 20213063, 20213071, 20213157, 20213172, and 20213186 were generated, but were not used.

Batch permits with durations greater than 216 hours0.0025 days <br />0.06 hours <br />3.571429e-4 weeks <br />8.2188e-5 months <br /> were considered continuous Various releases.

The tritium activity listed on Plant Vent permits 20211111 and 20211114 was 20211111 excluded because the activity was the result of BAC Operations, and the activity 20211114 was accounted for on BAC permits 20211110 and 20211113.

The Ar-41 activity listed on batch permit 20212122 was adjusted from 3.69 Ci to 20212122 5.88E-04 curies to account for 11.83 hours9.606481e-4 days <br />0.0231 hours <br />1.372354e-4 weeks <br />3.15815e-5 months <br /> of decay (reactor shutdown to release start) and one volume of containment (2.6E6 ft3).

The tritium activity listed on Plant Vent permits 20212133 and 20212137 was 20212133 excluded because the activity was accounted for on Refueling Purge batch permits 20212137 20212131, 20212134, and 20212139.

The tritium activity listed on Plant Vent permits 20212143 and 20212147 was 20212143 excluded because the activity was the result of BAC Operations, and the activity 20212147 was accounted for on BAC permits 20212141 and 20212144.

The Ar-41 activity listed on batch permit 20213050 was adjusted from 10.2 Ci to 20213050 3.90E-04 Ci to account for 15.72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> of decay (reactor shutdown to release start) and only one volume of containment (2.6E6 ft3).

20213061 The tritium activity listed on Plant Vent permits 20213061, 20213066, and 20213066 20213077 was excluded because the activity was accounted for on Refueling 20213077 Purge batch permits 20213059, 20213062, 20213067, and 20213074.

Permit 20213183 was generated in 2021; however, the entire release occurred in 20213183 2022. Based on the release occurring in 2022, the activity accounted for on Permit 20213183 will be included in the 2022 ARERR.

PVNGS ARERR 2021 Page 72

Retrieved from "https://kanterella.com/w/index.php?title=ML22119A292&oldid=3440644"