Text

Annual Radioactive Effluent Release Report
	ML22054A173
Person / Time
Site:	Saint Lucie
Issue date:	02/23/2022
From:	Godes W; Florida Power & Light Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	L-2022-023
	Download: ML22054A173 (80)
	v • d • e

February 23, 2022 L-2022-023 10 CFR 50.36a U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Re: St. Lucie Units 1 and 2 Docket Nos. 50-335 and 50-389 2021 Annual Radioactive Effluent Release Report Pursuant to 10 CFR 50.36a(a)(2) and Technical Specification (TS) 6.9.1.7, enclosed is the 2021 Annual Radioactive Effluent Release Report for St. Lucie Units 1 and 2. The report provides information for the 12-month period beginning January 1, 2021 and ending December 31, 2021.

Please contact Richard Sciscente at 772-467-7156 with any questions regarding this submittal.

Sincerely, Wyatt Godes Licensing Manager St. Lucie Plant WG/rcs

Enclosure:

Combined Annual Radioactive Effluent Release Report Florida Power & Light Company 6501 S. Ocean Drive, Jensen Beach, FL 34957

L-2022-023 Enclosure ENCLOSURE 1 COMBINED ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT (10 PAGES)

L-2022-023 Enclosure FLORIDA POWER & LIGHT COMPANY ST. LUCIE UNITS 1 AND 2 ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT JANUARY 1, 2021 THROUGH DECEMBER 31, 2021 1.0 PROGRAM DESCRIPTION 2.0 SUPPLEMENTAL INFORMATION 2.1 Abnormal Releases or Abnormal Discharges 2.2 Non-Routine Planned Discharges 2.3 Radioactive Waste Treatment System Changes 2.4 Annual Land Use Census Changes 2.5 Effluent Monitoring System Inoperability 2.6 Offsite Dose Calculation Manual Changes 2.7 Process Control Program Changes 2.8 Corrections to Previous Reports 2.9 Other 2.10 Groundwater Protection Program 3.0 TABLES 3.1 Gaseous Effluents and Liquid Effluents 3.2 Solid Waste Storage and Shipments 3.3 Dose Assessments 3.4 Visitor Dose

L-2022-023 Enclosure 1.0 PROGRAM DESCRIPTION Regulatory Limits The Offsite Dose Calculation Manual (ODCM) Radiological Effluent Control limits applicable to the release of radioactive material in liquid and gaseous effluents are described in the following sections.

Fission and Activation Gases (Noble Gases)

The dose rate due to radioactive materials released in gaseous effluents, from the Site to areas at and beyond the Site boundary, shall be limited to less than or equal to 500 mrem/yr to the whole body and less than or equal to 3000 mrem/yr to the skin.

The air dose due to noble gases released in gaseous effluents from each Unit, to areas at and beyond the Site boundary, shall be limited to:

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.

Iodine-131, Iodine-133, Tritium, Carbon-14, and Radioactive Material in Particulate Form The dose rate due to Iodine-131 (I-131), Iodine-133 (I-133), Tritium, and all radionuclides in particulate form with half-lives greater than 8 days, released in gaseous effluents from the Site to areas at and beyond the Site boundary, shall be limited to less than or equal to 1500 mrem/yr to any organ.

The dose to a MEMBER OF THE PUBLIC from I-131, I-133, Tritium, Carbon-14 (C-14), and all radionuclides in particulate form with half-lives greater than 8 days in gaseous effluents released from each Unit, to areas at and beyond the Site boundary, shall be limited to:

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.

Liquid Effluents The concentration of radioactive material released in liquid effluents to unrestricted areas shall be limited to 10 times the concentrations specified in 10 CFR Part 20, Appendix B, Table 2, Column 2 for radionuclides other than dissolved or entrained noble gases. For dissolved or entrained noble gases, the concentration shall be limited to 2.0E-4 Ci/ml total activity.

The dose or dose commitment to a MEMBER OF THE PUBLIC from radioactive materials in liquid effluents released from each Unit, to unrestricted areas, shall be limited to:

a. During any calendar quarter: Less than or equal to 1.5 mrem to the whole body and less than or equal to 5 mrem to any organ, and

b. During any calendar year: Less than or equal to 3 mrem to the who le body and less than or equal to 10 mrem to any organ.

L-2022-023 Enclosure Total Dose The annual (calendar year) dose or dose commitment to any MEMBER OF THE PUBLIC due to releases of radioactivity and to radiation from uranium fuel cycle sources shall be limited to less than or equal to 25 mrem to the whole body or any organ, except the thyroid wh ich sh all b e limited to less than or equal to 75 mrem.

Effluent Concentration Limits Gaseous Effluents For gaseous effluents, effluent concentration limits (ECL) values are no t directly used in release rate calculations since the applicable limits are expressed in terms of dose rate at the Site boundary.

Liquid Effluents The values specified in 10 CFR Part 20, Appendix B, Table 2, Column 2 are used as the ECL for liquid radioactive effluents released to unrestricted areas. A value of 2.0E-04 Ci/ml is used as the ECL for dissolved and entrained noble gases in liquid effluents.

Measurements and Approximations of Total Radioactivity Measurements of total radioactivity in liquid and gaseous radioactive effluents were accomplished in accordance with the sampling and analysis requirements of Tables 4.11-1 and 4.11-2, respectively, of the St. Lucie ODCM. Estimates of errors are in accordance with Methodology Section 4.0.4 of the ODCM.

The estimate of errors associated with values reported are below:

LIQUID GASEOUS Error Topic Avg % Max % Avg % Max %

Release Point Mixing 2 5 NA NA Sampling 1 5 2 5 Sample Preparation 1 5 1 5 Sample Analysis 3 10 3 10 Release Volume 2 5 4 15 Total % 9 30 10 35 (above values are examples only)

The predictability of error for radioactive releases can only be applied to nuclides that are predominant in sample spectrums. Nuclides that are near background relative to the predominant nuclides in a given sample could easily have errors greater than the maximums listed above.

L-2022-023 Enclosure Liquid Radioactive Effluents Each batch release was sampled and analyzed for gamma emitting radionuclides using gamma spectroscopy prior to release. Composite samples were analyzed monthly for tritium and gross alpha radioactivity in the onsite laboratory using liquid scintillation and air ion chamber counting techniques, respectively. Composite samples were analyzed quarterly for Strontium-89 (Sr-89), Strontium-90 (Sr-90), Iron-55 (Fe-55),

Nickel-63 (Ni-63), and C-14 by a contract laboratory. The results of the composite analyses from the previous month or quarter were used to estimate the quantities of these radionuclides in liquid effluents during the current month or quarter. The total radioactivity in liquid effluent releases was determined from the measured and estimated concentrations of each radionuclide present and the total volume of the effluent released during periods of discharge.

Gaseous Radioactive Effluents Each gaseous batch was sampled and analyzed for radioactivity prior to release. For releases from gas decay tanks, noble gas grab samples were analyzed for gamma emitting radionuclides using gamma spectroscopy.

For releases from the reactor containment buildings, samples were taken of noble gas and tritium grab samples and analyzed for gamma emitting radionuclides prior to each release. The results of the analyses and the total volume of effluent released were used to determine the total amou nt of radioactivity released in the batch mode.

For continuous effluent release pathways, noble gas and tritium grab samples were collected and analyzed weekly for gamma emitting radionuclides by gamma spectroscopy and liquid scintillation counting techniques, respectively. Continuous release pathways were continuously sampled using radioiodine absorbers and particulate filters. The radioiodine absorbers and particulate filters were analyzed weekly for gamma emitting radionuclides using gamma spectroscopy. Results of the noble gas and tritium grab samples, radioiodine absorber, and particulate filter analyses from the current week along with the average effluent f lo w rate for the previous week were used to determine the total amount of radioactivity released in the continuous mode. The particulate filters were analyzed weekly for gross alpha activity in the onsite laboratory using the air ion chamber counting technique. Quarterly composites of particulate filters were analyzed for Sr-89 and Sr-90 by a contract laboratory.

Meteorological Monitoring Program In accordance with ODCM Administrative Control 3.11.2.6.b., a summary of hourly meteorological data collected during 2021 is retained onsite.

This data is available for review by the NRC upon request. During 20 21 ,

the goal of 90% joint data recovery was met. Actual meteorolo gical data

L-2022-023 Enclosure collected during the year was used for the offsite dose calculations in this report.

Carbon-14 Dose Estimation The estimate of C-14 released from the St. Lucie Nuclear Plant was derived from the EPRI document, Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents, Report 1021106, issued December 2010.

The Site-specific source term values used in the St. Lucie calculations were taken from the PWR Section, Page 4-28 of the report, and employed the proxy generation rate values for a Combustion Engineering reactor.

The actual 2021 operating data for the units was employed for the calculations to derive the total curies released for each unit.

The total amount of C-14 released in 2021 from Unit 1 was 10.20 Ci, an d the total amount of C-14 released in 2021 from Unit 2 was 10.32 Ci.

Per Regulatory Guide 1.21, Rev 2, Section 5.7, Real exposure pathways are identified for routine discharges and direct radiation based on the results of the Land Use Census. Dose calculations should typically be performed based on real exposure pathways. Because the 2021 Land Use Census did not identify any land within 5 miles of Site that met the criteria of a garden per Technical Specification 3.12.2 listed in the ODCM, the highest dose exposure pathway from C-14 was calculated from the collection of citrus fruit at an orchard at a distance of 5 miles in the West sector. A Child consuming citrus produced at the orchard located 5 miles in the West direction from Site would have received a total combined Bone Dose of 4.31E-02 mrem attributed to C-14.

Assessment of radiation dose from radioactive effluents to a MEMBER OF THE PUBLIC due to activities inside the Site boundary assumes the visitor to be a Lifeguard at Walton Rocks Beach Recreation Area, located 1 mile southeast of the site. Dose to the visitor on Site for calendar year 2021 was calculated to be 4.75E-09 mrem Total Body dose. See Section 3.4, Dose Assessments, for more detail.

Radiation dose from radioactive effluents to a MEMBER OF THE PUBLIC due to activities inside the Site boundary is a fraction of the 1 mrem annual whole-body dose received by the average US citizen from natural occurring C-14, primarily generated through cosmogenesis in the terrestrial biosphere (

Reference:

National Council of Radiation Protectio n Report 45, Natural Background Radiation in the United States).

All C-14 dose calculations are based on Regulatory Guide 1.109 values.

L-2022-023 Enclosure 2.0 SUPPLEMENTAL INFORMATION 2.1 Abnormal Releases or Abnormal Discharges No abnormal (unplanned) releases or discharges occurred during the report period.

2.2 Non-Routine Planned Discharges No non-routine planned discharges occurred during the report period.

2.3 Radioactive Waste Treatment System Changes No changes were made to the Radioactive Waste Treatment System during the report period.

2.4 Annual Land Use Census Changes During 2021, no garden greater than 500 ft2 was located within 5 miles of Site. Per Technical Specification 3.12.2 listed in the ODCM, C-200, Page 64, broad leaf vegetation (Brazilian Pepper) sampling was performed at th e Site Boundary in the 2 sectors (WNW and NW) with the highest predicted D/Qs in lieu of the garden census. Controls for broad leaf vegetation sampling per ODCM Table 3.12-1, Part 4.b, including collection and analysis of control samples, were followed.

2.5 Effluent Monitoring System Inoperability No effluent monitors were out of service for greater than 30 days during the report period.

2.6 Offsite Dose Calculation Manual Changes No changes were made to the Offsite Dose Calculation Manual during the report period.

2.7 Process Control Program Changes No changes were made to the Process Control Program during the report period.

2.8 Corrections to Previous Reports The 2020 Annual Radioactive Effluent Release Report (L-2021-049) was found to contain an error related to the amount of tritium reported in liquid releases for the third and fourth quarters. Further investigation revealed and corrected two additional errors with gaseous release permits being closed on

L-2022-023 Enclosure the wrong date, making it appear that the releases were 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months longer (i.e.,

greater) than actual. L-2021-049, Enclosure 1, Table 3.1, Gaseous Ef fluents and Liquid Effluents, and Table 3.3, Dose Assessments were corrected and submitted to the Nuclear Regulatory Commission in Letter L-2021-225 dated December 14, 2021.

2.9 Other AR 2381903 LOSS OF PRESSURE IN 2C GAS DECAY TANK (GDT)

When 2C GDT was placed in service, pressure in the tank dropped from 1 3 psig to 8 psig. Crew decided to press up the 2C GDT to above 10 psig and swap to the 2A GDT, following a gaseous release of 2A GDT. During the 2 A GDT release, 2C GDT pressure dropped to 6 psig, when it was then removed from service. 2A GDT was NOT dropping pressure (once isolated from the release). Per the ODCM, an unplanned release is defined for GDTs as: If a GDT loses greater than 2 psig per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months for 9 consecutive shifts, or 18 p sig in 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , AND the losses were determined to be to the Reactor Au x iliary Building Atmosphere, then you must declare the losses an unplanned release.

In this case, the C GDT lost a total of 9 psig in the span of 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and was then removed from service, and therefore does not meet the defin itio n o f an unplanned release.

AR 2391141 X-5 LIQUID RADWASTE RADIATION MONITOR FLOW LOW ALARM Unit: 01 Equipment Name: RADIATION DETECTOR FOR LIQUID MONITOR CHANNEL 43 Location

Description:

CCW/26/N-957/E-1731 Equipment Tag: RE-6627 When attempting to perform a release of A Waste Monitor Tank per 1-NOP- 06.01, X-5 Liquid Radwaste Rad Monitor Flow Low alarm locked in.

Operations declared RE-6627 Liquid Waste Discharge Radiation Monitor out of service. Release was stopped, and Chemistry performed additional grab sample of A WMT to allow for release with RE-6627 out of service.

Compensatory measures implemented: With the Radiation Monitor non-functional, liquid releases can be conducted provided two (2) independent samples are analyzed and two (2) qualified individuals validate the release rate calculation.

AR 2396014 DRAWINGS NEED UPDATED FOR CHANGES MADE TO UNIT 1 GAS ANALYZER Unit: 01 Equipment Name: WASTE GAS DECAY TANKS OXYGEN ANALYZER

L-2022-023 Enclosure Location

Description:

RAB/19.5/N-RA3/E-RAH - AUTO GAS ANALYZER Equipment Tag: ANALYZER I&C performed modifications on the Unit 1 Gas Analyzers for O2Y-6601 and O2Y-6602 to remove piping and pumps and left only the piping from the 1A, 1B, and 1C Gas Decay Tanks (GDTs). PCR 2389176 was generated to change procedure 1-NOP-06.23 to allow for alignment of the GDTs to the waste gas analyzer; however, it does not appear the associated plant drawings were changed. 8770-3089 and 8770-G-078 SHT 164 need to be u pdated f or these changes. The required compensatory measures are in effect.

Compensatory measures implemented: Chemistry once-per-24-hour grab sampling.

South Pond Settling Basin Release Summary Seventeen batch releases from the South Settling Basin to the Intake Canal to lower the water level due to periods of higher than normal rainfall occurred during the report period. All releases were analyzed according to th e ODCM and Site procedural requirements and were found to have no detectable gamma, tritium, alpha, or hard-to-detect isotopes. The releases are summarized below.

2021 South Pond Releases Volume

Sample Date Permit # (Gallons) Quarter 1 1/12/21 L-21-056-B 1,926,930 Q1 2 2/9/21 L-21-065-B 4,248,114 3 3/18/21 L-21-084-B 2,622,517 4 4/10/21 L-21-085-B 2,679,997 Q2 5 5/5/21 L-21-105-B 2,109,765 6 6/4/21 L-21-106-B 1,681,699 7 6/16/21 L-21-109-B 6,495,301 8 6/24/21 L-21-111-B 754,551 9 7/1/21 L-21-115-B 154,381 Q3 10 8/5/21 L-21-132-B 7,209,746 11 8/12/21 L-21-133-B 2,954,550 12 8/29/21 L-21-137-B 7,480,000 13 9/9/21 L-21-138-B 3,940,000 14 9/20/21 L-21-144-B 2,623,830 15 11/12/21 L-21-146-B 2,455,064 Q4 16 11/22/21 L-21-147-B 1,700,292 17 12/18/21 L-21-001-B 3,416,128

L-2022-023 Enclosure 2.10 Groundwater Protection Program No limits were exceeded for the St. Lucie Nuclear Site Groundwater Protection Program during the report period. The tritium results for the repo rt period are contained in the table below.

L-2022-023 Enclosure 3.0 TABLES 3.1 Gaseous Effluents and Liquid Effluents 3.2 Solid Waste Storage and Shipments 3.3 Dose Assessments 3.4 Visitor Dose

L-2022-023 Enclosure TABLE 3.1 GASEOUS EFFLUENTS AND LIQUID EFFLUENTS (26 PAGES)

Friday, February 11, 2022 1:30:31PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 5A and 5B - Liquid and Gas Batch Release Summary Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 A. Liquid Batch Release Totals Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Year Totals

1. Number of Batch Releases 20 35 29 8 92

2. Total duration of batch releases min 3.51E+04 5.55E+04 6.21E+04 2.33E+04 1.76E+05

3. Maximum batch release duration min 8.64E+03 8.63E+03 8.88E+03 8.66E+03 8.88E+03

4. Average batch release duration min 1.75E+03 1.59E+03 2.14E+03 2.91E+03 1.91E+03

5. Minimum batch release duration min 3.77E+02 5.09E+02 4.45E+02 7.48E+02 3.77E+02 B. Gas Batch Release Totals Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Year Totals

1. Number of Batch Releases 58 68 75 54 255

2. Total duration of batch releases min 1.98E+04 7.42E+04 7.33E+04 1.85E+04 1.86E+05

3. Maximum batch release duration min 1.59E+03 1.98E+04 1.03E+04 6.00E+02 1.98E+04

4. Average batch release duration min 3.41E+02 1.09E+03 9.77E+02 3.42E+02 7.29E+02

5. Minimum batch release duration min 2.50E+01 1.70E+01 2.20E+01 4.00E+01 1.70E+01 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Friday, February 11, 2022 1:32:21PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 6A and 6B - Liquid and Gas Abnormal Release Summary Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 A. Liquid Abnormal Release Totals Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Year Totals

1. Number of Abnormal Releases 0 0 0 0 0

2. Total Activity of abnormal releases Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 B. Gas Abnormal Release Totals Units 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter Year Totals

1. Number of Abnormal Releases 0 0 0 0 0

2. Total Activity of abnormal releases Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Page 1 of 1 Friday, February 11, 2022 1:34:56PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 1A, Gaseous Effluents - Summation of All Releases Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Total Release Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Uncertainty A. Fission and Activation Gases

1. Total Release Ci 6.66E-01 1.73E+00 3.87E+00 1.03E+01 1.66E+01

2. Average Release Rate for Period uCi/s 8.56E-02 2.19E-01 4.87E-01 1.30E+00 5.27E-01

3. Percent of Limit %

B. Iodines and Halogens

1. Total Release Ci 1.02E-05 2.59E-05 1.23E-06 0.00E+00 3.73E-05

2. Average Release Rate for Period uCi/s 1.31E-06 3.30E-06 1.54E-07 0.00E+00 1.18E-06

3. Percent of Limit %

C. Particulates

1. Total Release Ci 0.00E+00 1.16E-07 1.37E-06 0.00E+00 1.49E-06

2. Average Release Rate for Period uCi/s 0.00E+00 1.47E-08 1.72E-07 0.00E+00 4.71E-08

3. Percent of Limit %

D. Tritium

1. Total Release Ci 8.57E-01 5.45E+00 3.54E+00 1.90E+00 1.18E+01

2. Average Release Rate for Period uCi/s 1.10E-01 6.93E-01 4.46E-01 2.39E-01 3.73E-01

3. Percent of Limit %

E. Gross Alpha

1. Total Release Ci 0.00E+00 3.19E-08 2.18E-09 4.83E-09 3.89E-08 F. Carbon-14

1. Total Release Ci 5.56E+00 4.51E+00 4.73E+00 5.70E+00 2.05E+01

2. Average Release Rate for Period uCi/s 7.15E-01 5.74E-01 5.95E-01 7.18E-01 6.50E-01

3. Percent of Limit %

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Page 1 of 1 Friday, February 11, 2022 1:33:35PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 1A, Gaseous Effluents - Summation of All Releases Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Total Release Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Uncertainty A. Fission and Activation Gases

1. Total Release Ci 3.28E-01 4.79E-01 3.00E-01 2.85E-01 1.39E+00

2. Average Release Rate for Period uCi/s 4.22E-02 6.09E-02 3.78E-02 3.59E-02 4.41E-02

3. Percent of Limit %

B. Iodines and Halogens

1. Total Release Ci 8.89E-06 2.54E-05 0.00E+00 0.00E+00 3.43E-05

2. Average Release Rate for Period uCi/s 1.14E-06 3.24E-06 0.00E+00 0.00E+00 1.09E-06

3. Percent of Limit %

C. Particulates

1. Total Release Ci 0.00E+00 1.16E-07 0.00E+00 0.00E+00 1.16E-07

2. Average Release Rate for Period uCi/s 0.00E+00 1.47E-08 0.00E+00 0.00E+00 3.67E-09

3. Percent of Limit %

D. Tritium

1. Total Release Ci 5.51E-01 5.32E+00 1.34E+00 1.58E+00 8.79E+00

2. Average Release Rate for Period uCi/s 7.08E-02 6.77E-01 1.68E-01 1.99E-01 2.79E-01

3. Percent of Limit %

E. Gross Alpha

1. Total Release Ci 0.00E+00 3.19E-08 0.00E+00 4.83E-09 3.67E-08 F. Carbon-14

1. Total Release Ci 2.83E+00 1.64E+00 2.90E+00 2.81E+00 1.02E+01

2. Average Release Rate for Period uCi/s 3.64E-01 2.09E-01 3.65E-01 3.54E-01 3.23E-01

3. Percent of Limit %

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Page 1 of 1 Friday, February 11, 2022 1:34:23PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 1A, Gaseous Effluents - Summation of All Releases Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Total Release Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Uncertainty A. Fission and Activation Gases

1. Total Release Ci 3.38E-01 1.25E+00 3.57E+00 1.01E+01 1.52E+01

2. Average Release Rate for Period uCi/s 4.34E-02 1.59E-01 4.50E-01 1.27E+00 4.82E-01

3. Percent of Limit %

B. Iodines and Halogens

1. Total Release Ci 1.29E-06 4.89E-07 1.23E-06 0.00E+00 3.01E-06

2. Average Release Rate for Period uCi/s 1.66E-07 6.22E-08 1.54E-07 0.00E+00 9.54E-08

3. Percent of Limit %

C. Particulates

1. Total Release Ci 0.00E+00 0.00E+00 1.37E-06 0.00E+00 1.37E-06

2. Average Release Rate for Period uCi/s 0.00E+00 0.00E+00 1.72E-07 0.00E+00 4.35E-08

3. Percent of Limit %

D. Tritium

1. Total Release Ci 3.07E-01 1.26E-01 2.21E+00 3.21E-01 2.96E+00

2. Average Release Rate for Period uCi/s 3.94E-02 1.60E-02 2.78E-01 4.04E-02 9.39E-02

3. Percent of Limit %

E. Gross Alpha

1. Total Release Ci 0.00E+00 0.00E+00 2.18E-09 0.00E+00 2.18E-09 F. Carbon-14

1. Total Release Ci 2.73E+00 2.87E+00 1.83E+00 2.89E+00 1.03E+01

2. Average Release Rate for Period uCi/s 3.51E-01 3.65E-01 2.30E-01 3.64E-01 3.27E-01

3. Percent of Limit %

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Page 1 of 3 Friday, February 11, 2022 1:37:02PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 1B, Gaseous Effluents - Ground Level Release - Continuous Mode Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Continuous Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Gases Ar-41 Ci 0.00E+00 4.64E-01 0.00E+00 0.00E+00 4.64E-01 Kr-85m Ci 3.82E-02 0.00E+00 0.00E+00 0.00E+00 3.82E-02 Xe-131m Ci 0.00E+00 0.00E+00 8.05E-01 9.85E+00 1.07E+01 Xe-135 Ci 3.91E-02 1.55E-01 0.00E+00 0.00E+00 1.94E-01 Xe-135m Ci 0.00E+00 5.47E-01 0.00E+00 0.00E+00 5.47E-01 Total For Period Ci 7.73E-02 1.17E+00 8.05E-01 9.85E+00 1.19E+01 B. Iodines and Halogens I-131 Ci 1.87E-06 3.46E-06 8.67E-07 0.00E+00 6.20E-06 I-133 Ci 8.31E-06 2.25E-05 0.00E+00 0.00E+00 3.08E-05 Total For Period Ci 1.02E-05 2.59E-05 8.67E-07 0.00E+00 3.70E-05 C. Particulates Cr-51 Ci 0.00E+00 0.00E+00 5.09E-07 0.00E+00 5.09E-07 D. Tritium H-3 Ci 0.00E+00 0.00E+00 1.29E+00 1.45E+00 2.74E+00 E. Gross Alpha G-Alpha Ci 0.00E+00 2.39E-08 2.18E-09 4.83E-09 3.09E-08 F. Carbon-14 C-14 Ci 5.56E+00 4.51E+00 4.73E+00 5.70E+00 2.05E+01 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

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Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:37 Page 2 of 3 Reg. Guide 1.21, Table 1B, Gaseous Effluents - Ground Level Release - Batch Mode Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Gases Ar-41 Ci 5.05E-01 3.77E-01 2.26E+00 4.58E-01 3.60E+00 Kr-85m Ci 5.46E-05 4.83E-06 1.58E-05 0.00E+00 7.52E-05 Kr-87 Ci 0.00E+00 0.00E+00 1.23E-04 0.00E+00 1.23E-04 Kr-88 Ci 0.00E+00 0.00E+00 1.36E-04 1.17E-04 2.54E-04 Kr-89 Ci 1.82E-02 0.00E+00 0.00E+00 0.00E+00 1.82E-02 Xe-127 Ci 0.00E+00 4.25E-05 2.23E-05 0.00E+00 6.48E-05 Xe-131m Ci 0.00E+00 0.00E+00 1.67E-04 0.00E+00 1.67E-04 Xe-133m Ci 0.00E+00 1.15E-03 2.07E-04 0.00E+00 1.36E-03 Xe-135 Ci 1.80E-03 1.98E-02 1.15E-03 1.20E-03 2.39E-02 Xe-133 Ci 6.25E-02 1.62E-01 8.10E-01 3.44E-02 1.07E+00 Xe-135m Ci 2.58E-04 0.00E+00 0.00E+00 0.00E+00 2.58E-04 Xe-138 Ci 3.95E-04 0.00E+00 3.66E-05 0.00E+00 4.31E-04 Total For Period Ci 5.89E-01 5.60E-01 3.07E+00 4.94E-01 4.71E+00 B. Iodines and Halogens I-131 Ci 0.00E+00 0.00E+00 2.16E-07 0.00E+00 2.16E-07 I-133 Ci 0.00E+00 0.00E+00 1.44E-07 0.00E+00 1.44E-07 Total For Period Ci 0.00E+00 0.00E+00 3.60E-07 0.00E+00 3.60E-07 C. Particulates Co-60 Ci 0.00E+00 0.00E+00 2.95E-07 0.00E+00 2.95E-07 Zn-65 Ci 0.00E+00 0.00E+00 3.93E-07 0.00E+00 3.93E-07 Nb-95 Ci 0.00E+00 1.16E-07 1.73E-07 0.00E+00 2.89E-07 Total For Period Ci 0.00E+00 1.16E-07 8.61E-07 0.00E+00 9.77E-07 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:37 Page 3 of 3 Reg. Guide 1.21, Table 1B, Gaseous Effluents - Ground Level Release - Batch Mode Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual D. Tritium H-3 Ci 8.57E-01 5.45E+00 2.26E+00 4.50E-01 9.01E+00 E. Gross Alpha G-Alpha Ci 0.00E+00 8.01E-09 0.00E+00 0.00E+00 8.01E-09 F. Carbon-14 No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

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Page 1 of 3 Friday, February 11, 2022 1:35:41PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 1B, Gaseous Effluents - Ground Level Release - Continuous Mode Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Continuous Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Gases Xe-135 Ci 0.00E+00 1.55E-01 0.00E+00 0.00E+00 1.55E-01 B. Iodines and Halogens I-131 Ci 5.81E-07 2.97E-06 0.00E+00 0.00E+00 3.55E-06 I-133 Ci 8.31E-06 2.25E-05 0.00E+00 0.00E+00 3.08E-05 Total For Period Ci 8.89E-06 2.54E-05 0.00E+00 0.00E+00 3.43E-05 C. Particulates No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 D. Tritium H-3 Ci 0.00E+00 0.00E+00 1.15E+00 1.30E+00 2.45E+00 E. Gross Alpha G-Alpha Ci 0.00E+00 2.39E-08 0.00E+00 4.83E-09 2.87E-08 F. Carbon-14 C-14 Ci 2.83E+00 1.64E+00 2.90E+00 2.81E+00 1.02E+01 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:35 Page 2 of 3 Reg. Guide 1.21, Table 1B, Gaseous Effluents - Ground Level Release - Batch Mode Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Gases Ar-41 Ci 2.92E-01 1.68E-01 2.77E-01 2.73E-01 1.01E+00 Kr-87 Ci 0.00E+00 0.00E+00 1.23E-04 0.00E+00 1.23E-04 Kr-88 Ci 0.00E+00 0.00E+00 1.36E-04 1.17E-04 2.54E-04 Kr-89 Ci 1.82E-02 0.00E+00 0.00E+00 0.00E+00 1.82E-02 Xe-127 Ci 0.00E+00 4.25E-05 0.00E+00 0.00E+00 4.25E-05 Xe-135 Ci 1.56E-04 1.91E-02 1.46E-04 4.23E-05 1.94E-02 Xe-133m Ci 0.00E+00 1.15E-03 0.00E+00 0.00E+00 1.15E-03 Xe-133 Ci 1.75E-02 1.36E-01 2.25E-02 1.20E-02 1.88E-01 Xe-135m Ci 2.58E-04 0.00E+00 0.00E+00 0.00E+00 2.58E-04 Xe-138 Ci 3.95E-04 0.00E+00 0.00E+00 0.00E+00 3.95E-04 Total For Period Ci 3.28E-01 3.24E-01 3.00E-01 2.85E-01 1.24E+00 B. Iodines and Halogens No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 C. Particulates Nb-95 Ci 0.00E+00 1.16E-07 0.00E+00 0.00E+00 1.16E-07 D. Tritium H-3 Ci 5.51E-01 5.32E+00 1.85E-01 2.78E-01 6.34E+00 E. Gross Alpha G-Alpha Ci 0.00E+00 8.01E-09 0.00E+00 0.00E+00 8.01E-09 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:35 Page 3 of 3 Reg. Guide 1.21, Table 1B, Gaseous Effluents - Ground Level Release - Batch Mode Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual F. Carbon-14 No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Page 1 of 3 Friday, February 11, 2022 1:36:20PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 1B, Gaseous Effluents - Ground Level Release - Continuous Mode Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Continuous Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Gases Ar-41 Ci 0.00E+00 4.64E-01 0.00E+00 0.00E+00 4.64E-01 Kr-85m Ci 3.82E-02 0.00E+00 0.00E+00 0.00E+00 3.82E-02 Xe-131m Ci 0.00E+00 0.00E+00 8.05E-01 9.85E+00 1.07E+01 Xe-135 Ci 3.91E-02 0.00E+00 0.00E+00 0.00E+00 3.91E-02 Xe-135m Ci 0.00E+00 5.47E-01 0.00E+00 0.00E+00 5.47E-01 Total For Period Ci 7.73E-02 1.01E+00 8.05E-01 9.85E+00 1.17E+01 B. Iodines and Halogens I-131 Ci 1.29E-06 4.89E-07 8.67E-07 0.00E+00 2.65E-06 C. Particulates Cr-51 Ci 0.00E+00 0.00E+00 5.09E-07 0.00E+00 5.09E-07 D. Tritium H-3 Ci 0.00E+00 0.00E+00 1.34E-01 1.49E-01 2.83E-01 E. Gross Alpha G-Alpha Ci 0.00E+00 0.00E+00 2.18E-09 0.00E+00 2.18E-09 F. Carbon-14 C-14 Ci 2.73E+00 2.87E+00 1.83E+00 2.89E+00 1.03E+01 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:36 Page 2 of 3 Reg. Guide 1.21, Table 1B, Gaseous Effluents - Ground Level Release - Batch Mode Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Gases Ar-41 Ci 2.14E-01 2.09E-01 1.98E+00 1.85E-01 2.59E+00 Kr-85m Ci 5.46E-05 4.83E-06 1.58E-05 0.00E+00 7.52E-05 Xe-127 Ci 0.00E+00 0.00E+00 2.23E-05 0.00E+00 2.23E-05 Xe-131m Ci 0.00E+00 0.00E+00 1.67E-04 0.00E+00 1.67E-04 Xe-133m Ci 0.00E+00 0.00E+00 2.07E-04 0.00E+00 2.07E-04 Xe-135 Ci 1.64E-03 7.07E-04 1.00E-03 1.16E-03 4.51E-03 Xe-133 Ci 4.50E-02 2.64E-02 7.88E-01 2.24E-02 8.82E-01 Xe-138 Ci 0.00E+00 0.00E+00 3.66E-05 0.00E+00 3.66E-05 Total For Period Ci 2.60E-01 2.36E-01 2.77E+00 2.09E-01 3.47E+00 B. Iodines and Halogens I-131 Ci 0.00E+00 0.00E+00 2.16E-07 0.00E+00 2.16E-07 I-133 Ci 0.00E+00 0.00E+00 1.44E-07 0.00E+00 1.44E-07 Total For Period Ci 0.00E+00 0.00E+00 3.60E-07 0.00E+00 3.60E-07 C. Particulates Co-60 Ci 0.00E+00 0.00E+00 2.95E-07 0.00E+00 2.95E-07 Zn-65 Ci 0.00E+00 0.00E+00 3.93E-07 0.00E+00 3.93E-07 Nb-95 Ci 0.00E+00 0.00E+00 1.73E-07 0.00E+00 1.73E-07 Total For Period Ci 0.00E+00 0.00E+00 8.61E-07 0.00E+00 8.61E-07 D. Tritium H-3 Ci 3.07E-01 1.26E-01 2.07E+00 1.72E-01 2.68E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:36 Page 3 of 3 Reg. Guide 1.21, Table 1B, Gaseous Effluents - Ground Level Release - Batch Mode Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual E. Gross Alpha No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 F. Carbon-14 No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Page 1 of 1 Friday, February 11, 2022 1:39:14PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 2A, Liquid Effluents - Summation of All Releases Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Total Release Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Uncertainty A. Fission and Activation Products

1. Total Release Ci 1.56E-02 1.39E-02 1.41E-02 3.35E-03 4.69E-02

2. Average Concentration uCi/mL 1.17E-10 7.00E-11 8.93E-11 4.36E-11 8.28E-11

3. Percent of Limit %

B. Tritium

1. Total Release Ci 3.47E+02 2.78E+02 1.61E+02 2.16E+01 8.08E+02

2. Average Concentration uCi/mL 2.60E-06 1.40E-06 1.02E-06 2.81E-07 1.42E-06

3. Percent of Limit %

C. Dissolved and Entrained Gases

1. Total Release Ci 7.15E-04 8.47E-03 9.04E-03 6.49E-05 1.83E-02

2. Average Concentration uCi/mL 5.35E-12 4.26E-11 5.74E-11 8.43E-13 3.23E-11

3. Percent of Limit %

D. Gross Alpha Activity

1. Total Release Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00

2. Average Concentration uCi/mL 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 E. Primary Liquid Release Volume

1. Total Release Liters 3.49E+07 5.49E+07 9.45E+07 2.92E+07 2.14E+08 F. Dilution Volume

1. Total Release Liters 1.34E+11 1.99E+11 1.58E+11 7.69E+10 5.67E+11 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Page 1 of 1 Friday, February 11, 2022 1:37:52PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 2A, Liquid Effluents - Summation of All Releases Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Total Release Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Uncertainty A. Fission and Activation Products

1. Total Release Ci 7.80E-03 6.96E-03 7.04E-03 1.68E-03 2.35E-02

2. Average Concentration uCi/mL 1.17E-10 7.00E-11 8.93E-11 4.36E-11 8.28E-11

3. Percent of Limit %

B. Tritium

1. Total Release Ci 1.73E+02 1.39E+02 8.06E+01 1.08E+01 4.04E+02

2. Average Concentration uCi/mL 2.60E-06 1.40E-06 1.02E-06 2.81E-07 1.42E-06

3. Percent of Limit %

C. Dissolved and Entrained Gases

1. Total Release Ci 3.57E-04 4.23E-03 4.52E-03 3.24E-05 9.15E-03

2. Average Concentration uCi/mL 5.35E-12 4.26E-11 5.74E-11 8.43E-13 3.23E-11

3. Percent of Limit %

D. Gross Alpha Activity

1. Total Release Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00

2. Average Concentration uCi/mL 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 E. Primary Liquid Release Volume

1. Total Release Liters 1.74E+07 2.75E+07 4.73E+07 1.46E+07 1.07E+08 F. Dilution Volume

1. Total Release Liters 6.68E+10 9.94E+10 7.88E+10 3.85E+10 2.84E+11 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Page 1 of 1 Friday, February 11, 2022 1:38:29PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 2A, Liquid Effluents - Summation of All Releases Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Total Release Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Uncertainty A. Fission and Activation Products

1. Total Release Ci 7.80E-03 6.96E-03 7.04E-03 1.68E-03 2.35E-02

2. Average Concentration uCi/mL 1.17E-10 7.00E-11 8.93E-11 4.36E-11 8.28E-11

3. Percent of Limit %

B. Tritium

1. Total Release Ci 1.73E+02 1.39E+02 8.06E+01 1.08E+01 4.04E+02

2. Average Concentration uCi/mL 2.60E-06 1.40E-06 1.02E-06 2.81E-07 1.42E-06

3. Percent of Limit %

C. Dissolved and Entrained Gases

1. Total Release Ci 3.57E-04 4.23E-03 4.52E-03 3.24E-05 9.15E-03

2. Average Concentration uCi/mL 5.35E-12 4.26E-11 5.74E-11 8.43E-13 3.23E-11

3. Percent of Limit %

D. Gross Alpha Activity

1. Total Release Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00

2. Average Concentration uCi/mL 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 E. Primary Liquid Release Volume

1. Total Release Liters 1.74E+07 2.75E+07 4.73E+07 1.46E+07 1.07E+08 F. Dilution Volume

1. Total Release Liters 6.68E+10 9.94E+10 7.88E+10 3.85E+10 2.84E+11 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Page 1 of 3 Friday, February 11, 2022 1:41:21PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 2B, Liquid Effluents - Continuous Mode Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Continuous Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Products No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 B. Tritium No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 C. Dissolved and Entrained Gases No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 D. Gross Alpha Activity No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:41 Page 2 of 3 Reg. Guide 1.21, Table 2B, Liquid Effluents - Batch Mode Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Products C-14 Ci 7.44E-03 3.28E-03 2.76E-03 6.81E-04 1.42E-02 Na-24 Ci 8.89E-06 5.16E-05 3.87E-05 3.33E-06 1.03E-04 Be-7 Ci 0.00E+00 1.58E-04 2.66E-05 0.00E+00 1.85E-04 Cr-51 Ci 8.71E-05 5.50E-05 7.05E-04 1.77E-04 1.02E-03 Mn-54 Ci 3.91E-05 2.74E-04 2.39E-04 3.78E-05 5.90E-04 Fe-59 Ci 9.56E-06 0.00E+00 1.45E-04 0.00E+00 1.54E-04 Co-58 Ci 6.06E-04 2.61E-03 1.51E-03 1.15E-03 5.88E-03 Co-60 Ci 1.50E-03 2.53E-03 2.21E-03 5.96E-04 6.84E-03 Ni-63 Ci 1.83E-03 9.60E-04 6.56E-04 3.62E-04 3.81E-03 Ni-65 Ci 0.00E+00 1.76E-05 0.00E+00 0.00E+00 1.76E-05 Zn-65 Ci 1.25E-05 1.50E-04 1.01E-04 0.00E+00 2.64E-04 Sr-91 Ci 4.15E-06 0.00E+00 0.00E+00 0.00E+00 4.15E-06 Y-92 Ci 0.00E+00 0.00E+00 7.43E-05 0.00E+00 7.43E-05 Zr-95 Ci 2.24E-05 4.57E-06 6.21E-04 4.13E-05 6.90E-04 Nb-95 Ci 5.94E-05 8.86E-05 1.05E-03 6.74E-05 1.26E-03 Nb-97 Ci 3.00E-04 1.75E-04 4.95E-04 4.95E-05 1.02E-03 Ru-103 Ci 5.63E-06 0.00E+00 0.00E+00 0.00E+00 5.63E-06 Ag-110m Ci 1.37E-04 1.65E-04 4.25E-04 4.51E-05 7.72E-04 Sb-124 Ci 3.82E-04 1.59E-03 1.00E-03 5.45E-05 3.03E-03 Sb-122 Ci 0.00E+00 5.45E-05 0.00E+00 0.00E+00 5.45E-05 Sb-125 Ci 3.01E-03 1.40E-03 9.48E-04 7.05E-05 5.43E-03 Te-123m Ci 4.87E-06 6.96E-05 0.00E+00 0.00E+00 7.45E-05 Te-129m Ci 0.00E+00 0.00E+00 7.82E-04 0.00E+00 7.82E-04 Te-132 Ci 0.00E+00 1.16E-04 0.00E+00 0.00E+00 1.16E-04 I-131 Ci 0.00E+00 2.18E-06 0.00E+00 0.00E+00 2.18E-06 I-132 Ci 0.00E+00 1.19E-04 0.00E+00 0.00E+00 1.19E-04 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:41 Page 3 of 3 Reg. Guide 1.21, Table 2B, Liquid Effluents - Batch Mode Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Cs-137 Ci 1.37E-04 4.02E-05 0.00E+00 1.32E-05 1.90E-04 La-140 Ci 0.00E+00 0.00E+00 2.75E-04 0.00E+00 2.75E-04 W-187 Ci 0.00E+00 0.00E+00 1.19E-05 0.00E+00 1.19E-05 Total For Period Ci 1.56E-02 1.39E-02 1.41E-02 3.35E-03 4.69E-02 B. Tritium H-3 Ci 3.47E+02 2.78E+02 1.61E+02 2.16E+01 8.08E+02 C. Dissolved and Entrained Gases Ar-41 Ci 0.00E+00 1.48E-04 0.00E+00 0.00E+00 1.48E-04 Kr-85m Ci 0.00E+00 3.25E-06 0.00E+00 0.00E+00 3.25E-06 Kr-88 Ci 0.00E+00 8.82E-06 0.00E+00 0.00E+00 8.82E-06 Xe-131m Ci 0.00E+00 0.00E+00 5.75E-05 0.00E+00 5.75E-05 Xe-135 Ci 0.00E+00 4.51E-05 4.34E-06 2.50E-06 5.19E-05 Xe-133m Ci 0.00E+00 9.48E-05 5.19E-05 0.00E+00 1.47E-04 Xe-133 Ci 7.15E-04 8.17E-03 8.93E-03 6.24E-05 1.79E-02 Total For Period Ci 7.15E-04 8.47E-03 9.04E-03 6.49E-05 1.83E-02 D. Gross Alpha Activity No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

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Page 1 of 3 Friday, February 11, 2022 1:40:05PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 2B, Liquid Effluents - Continuous Mode Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Continuous Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Products No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 B. Tritium No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 C. Dissolved and Entrained Gases No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 D. Gross Alpha Activity No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:40 Page 2 of 3 Reg. Guide 1.21, Table 2B, Liquid Effluents - Batch Mode Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Products C-14 Ci 3.72E-03 1.64E-03 1.38E-03 3.41E-04 7.08E-03 Na-24 Ci 4.44E-06 2.58E-05 1.94E-05 1.66E-06 5.13E-05 Be-7 Ci 0.00E+00 7.91E-05 1.33E-05 0.00E+00 9.24E-05 Cr-51 Ci 4.36E-05 2.75E-05 3.53E-04 8.84E-05 5.12E-04 Mn-54 Ci 1.96E-05 1.37E-04 1.19E-04 1.89E-05 2.95E-04 Fe-59 Ci 4.78E-06 0.00E+00 7.24E-05 0.00E+00 7.72E-05 Co-58 Ci 3.03E-04 1.31E-03 7.56E-04 5.77E-04 2.94E-03 Co-60 Ci 7.50E-04 1.27E-03 1.10E-03 2.98E-04 3.42E-03 Ni-63 Ci 9.17E-04 4.80E-04 3.28E-04 1.81E-04 1.91E-03 Ni-65 Ci 0.00E+00 8.82E-06 0.00E+00 0.00E+00 8.82E-06 Zn-65 Ci 6.27E-06 7.49E-05 5.06E-05 0.00E+00 1.32E-04 Sr-91 Ci 2.07E-06 0.00E+00 0.00E+00 0.00E+00 2.07E-06 Y-92 Ci 0.00E+00 0.00E+00 3.71E-05 0.00E+00 3.71E-05 Zr-95 Ci 1.12E-05 2.28E-06 3.11E-04 2.07E-05 3.45E-04 Nb-95 Ci 2.97E-05 4.43E-05 5.23E-04 3.37E-05 6.31E-04 Nb-97 Ci 1.50E-04 8.73E-05 2.47E-04 2.48E-05 5.10E-04 Ru-103 Ci 2.82E-06 0.00E+00 0.00E+00 0.00E+00 2.82E-06 Ag-110m Ci 6.83E-05 8.26E-05 2.12E-04 2.26E-05 3.86E-04 Sb-124 Ci 1.91E-04 7.97E-04 5.01E-04 2.72E-05 1.52E-03 Sb-122 Ci 0.00E+00 2.72E-05 0.00E+00 0.00E+00 2.72E-05 Sb-125 Ci 1.51E-03 6.98E-04 4.74E-04 3.52E-05 2.71E-03 Te-123m Ci 2.43E-06 3.48E-05 0.00E+00 0.00E+00 3.73E-05 Te-129m Ci 0.00E+00 0.00E+00 3.91E-04 0.00E+00 3.91E-04 Te-132 Ci 0.00E+00 5.80E-05 0.00E+00 0.00E+00 5.80E-05 I-131 Ci 0.00E+00 1.09E-06 0.00E+00 0.00E+00 1.09E-06 I-132 Ci 0.00E+00 5.95E-05 0.00E+00 0.00E+00 5.95E-05 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:40 Page 3 of 3 Reg. Guide 1.21, Table 2B, Liquid Effluents - Batch Mode Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Cs-137 Ci 6.85E-05 2.01E-05 0.00E+00 6.60E-06 9.52E-05 La-140 Ci 0.00E+00 0.00E+00 1.37E-04 0.00E+00 1.37E-04 W-187 Ci 0.00E+00 0.00E+00 5.96E-06 0.00E+00 5.96E-06 Total For Period Ci 7.80E-03 6.96E-03 7.04E-03 1.68E-03 2.35E-02 B. Tritium H-3 Ci 1.73E+02 1.39E+02 8.06E+01 1.08E+01 4.04E+02 C. Dissolved and Entrained Gases Ar-41 Ci 0.00E+00 7.41E-05 0.00E+00 0.00E+00 7.41E-05 Kr-85m Ci 0.00E+00 1.62E-06 0.00E+00 0.00E+00 1.62E-06 Kr-88 Ci 0.00E+00 4.41E-06 0.00E+00 0.00E+00 4.41E-06 Xe-131m Ci 0.00E+00 0.00E+00 2.88E-05 0.00E+00 2.88E-05 Xe-135 Ci 0.00E+00 2.25E-05 2.17E-06 1.25E-06 2.60E-05 Xe-133m Ci 0.00E+00 4.74E-05 2.59E-05 0.00E+00 7.33E-05 Xe-133 Ci 3.57E-04 4.08E-03 4.47E-03 3.12E-05 8.94E-03 Total For Period Ci 3.57E-04 4.23E-03 4.52E-03 3.24E-05 9.15E-03 D. Gross Alpha Activity No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

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Page 1 of 3 Friday, February 11, 2022 1:40:47PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, Table 2B, Liquid Effluents - Continuous Mode Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Continuous Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Products No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 B. Tritium No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 C. Dissolved and Entrained Gases No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 D. Gross Alpha Activity No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

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Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:40 Page 2 of 3 Reg. Guide 1.21, Table 2B, Liquid Effluents - Batch Mode Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual A. Fission and Activation Products C-14 Ci 3.72E-03 1.64E-03 1.38E-03 3.41E-04 7.08E-03 Na-24 Ci 4.44E-06 2.58E-05 1.94E-05 1.66E-06 5.13E-05 Be-7 Ci 0.00E+00 7.91E-05 1.33E-05 0.00E+00 9.24E-05 Cr-51 Ci 4.36E-05 2.75E-05 3.53E-04 8.84E-05 5.12E-04 Mn-54 Ci 1.96E-05 1.37E-04 1.19E-04 1.89E-05 2.95E-04 Fe-59 Ci 4.78E-06 0.00E+00 7.24E-05 0.00E+00 7.72E-05 Co-58 Ci 3.03E-04 1.31E-03 7.56E-04 5.77E-04 2.94E-03 Co-60 Ci 7.50E-04 1.27E-03 1.10E-03 2.98E-04 3.42E-03 Ni-63 Ci 9.17E-04 4.80E-04 3.28E-04 1.81E-04 1.91E-03 Ni-65 Ci 0.00E+00 8.82E-06 0.00E+00 0.00E+00 8.82E-06 Zn-65 Ci 6.27E-06 7.49E-05 5.06E-05 0.00E+00 1.32E-04 Sr-91 Ci 2.07E-06 0.00E+00 0.00E+00 0.00E+00 2.07E-06 Y-92 Ci 0.00E+00 0.00E+00 3.71E-05 0.00E+00 3.71E-05 Zr-95 Ci 1.12E-05 2.28E-06 3.11E-04 2.07E-05 3.45E-04 Nb-95 Ci 2.97E-05 4.43E-05 5.23E-04 3.37E-05 6.31E-04 Nb-97 Ci 1.50E-04 8.73E-05 2.47E-04 2.48E-05 5.10E-04 Ru-103 Ci 2.82E-06 0.00E+00 0.00E+00 0.00E+00 2.82E-06 Ag-110m Ci 6.83E-05 8.26E-05 2.12E-04 2.26E-05 3.86E-04 Sb-124 Ci 1.91E-04 7.97E-04 5.01E-04 2.72E-05 1.52E-03 Sb-122 Ci 0.00E+00 2.72E-05 0.00E+00 0.00E+00 2.72E-05 Sb-125 Ci 1.51E-03 6.98E-04 4.74E-04 3.52E-05 2.71E-03 Te-123m Ci 2.43E-06 3.48E-05 0.00E+00 0.00E+00 3.73E-05 Te-129m Ci 0.00E+00 0.00E+00 3.91E-04 0.00E+00 3.91E-04 Te-132 Ci 0.00E+00 5.80E-05 0.00E+00 0.00E+00 5.80E-05 I-131 Ci 0.00E+00 1.09E-06 0.00E+00 0.00E+00 1.09E-06 I-132 Ci 0.00E+00 5.95E-05 0.00E+00 0.00E+00 5.95E-05 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

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Florida Power & Light, St. Lucie Power Plant 2/11/2022 13:40 Page 3 of 3 Reg. Guide 1.21, Table 2B, Liquid Effluents - Batch Mode Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Batch Mode Nuclides Released Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Cs-137 Ci 6.85E-05 2.01E-05 0.00E+00 6.60E-06 9.52E-05 La-140 Ci 0.00E+00 0.00E+00 1.37E-04 0.00E+00 1.37E-04 W-187 Ci 0.00E+00 0.00E+00 5.96E-06 0.00E+00 5.96E-06 Total For Period Ci 7.80E-03 6.96E-03 7.04E-03 1.68E-03 2.35E-02 B. Tritium H-3 Ci 1.73E+02 1.39E+02 8.06E+01 1.08E+01 4.04E+02 C. Dissolved and Entrained Gases Ar-41 Ci 0.00E+00 7.41E-05 0.00E+00 0.00E+00 7.41E-05 Kr-85m Ci 0.00E+00 1.62E-06 0.00E+00 0.00E+00 1.62E-06 Kr-88 Ci 0.00E+00 4.41E-06 0.00E+00 0.00E+00 4.41E-06 Xe-131m Ci 0.00E+00 0.00E+00 2.88E-05 0.00E+00 2.88E-05 Xe-135 Ci 0.00E+00 2.25E-05 2.17E-06 1.25E-06 2.60E-05 Xe-133m Ci 0.00E+00 4.74E-05 2.59E-05 0.00E+00 7.33E-05 Xe-133 Ci 3.57E-04 4.08E-03 4.47E-03 3.12E-05 8.94E-03 Total For Period Ci 3.57E-04 4.23E-03 4.52E-03 3.24E-05 9.15E-03 D. Gross Alpha Activity No Nuclides Found Ci 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 If Not Detected, Nuclide is Not Reported. Zeroes in this table indicates that no radioactivity was present at detectable levels.

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L-2022-023 Enclosure TABLE 3.2 SOLID WASTE STORAGE AND SHIPMENTS (10 PAGES)

L-2022-023 Enclosure TABLE 3.3 DOSE ASSESSMENTS (27 PAGES)

Page 1 of 1 Friday, February 11, 2022 2:50:17PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, App B, Sec Doses due to Radioiodines, Tritium, and Particulates in Gaseous Releases Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Organ Dose Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Bone mRem 1.42E-03 1.16E-03 1.21E-03 1.46E-03 5.25E-03 Limit mRem Percent of Limit %

Liver mRem 1.23E-03 1.10E-03 1.10E-03 1.28E-03 4.71E-03 Limit mRem Percent of Limit %

Total Body mRem 1.23E-03 1.10E-03 1.10E-03 1.28E-03 4.71E-03 Limit mRem Percent of Limit %

Thyroid mRem 1.23E-03 1.11E-03 1.10E-03 1.28E-03 4.72E-03 Limit mRem Percent of Limit %

Kidney mRem 1.77E-04 1.89E-04 1.76E-04 1.91E-04 7.34E-04 Limit mRem Percent of Limit %

Lung mRem 1.23E-03 1.10E-03 1.10E-03 1.28E-03 4.71E-03 Limit mRem Percent of Limit %

GI-Lli mRem 1.23E-03 1.10E-03 1.10E-03 1.28E-03 4.71E-03 Limit mRem Percent of Limit %

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Page 1 of 1 Friday, February 11, 2022 2:48:40PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, App B, Sec Doses due to Radioiodines, Tritium, and Particulates in Gaseous Releases Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Organ Dose Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Bone mRem 7.25E-04 4.20E-04 7.43E-04 7.20E-04 2.61E-03 Limit mRem Percent of Limit %

Liver mRem 6.28E-04 4.73E-04 6.60E-04 6.46E-04 2.41E-03 Limit mRem Percent of Limit %

Total Body mRem 6.28E-04 4.73E-04 6.60E-04 6.46E-04 2.41E-03 Limit mRem Percent of Limit %

Thyroid mRem 6.30E-04 4.79E-04 6.60E-04 6.46E-04 2.42E-03 Limit mRem Percent of Limit %

Kidney mRem 9.13E-05 1.01E-04 1.01E-04 1.01E-04 3.94E-04 Limit mRem Percent of Limit %

Lung mRem 6.28E-04 4.73E-04 6.60E-04 6.46E-04 2.41E-03 Limit mRem Percent of Limit %

GI-Lli mRem 6.28E-04 4.73E-04 6.60E-04 6.46E-04 2.41E-03 Limit mRem Percent of Limit %

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Page 1 of 1 Friday, February 11, 2022 2:49:27PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, App B, Sec Doses due to Radioiodines, Tritium, and Particulates in Gaseous Releases Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Organ Dose Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Bone mRem 6.98E-04 7.36E-04 4.68E-04 7.41E-04 2.64E-03 Limit mRem Percent of Limit %

Liver mRem 6.00E-04 6.27E-04 4.42E-04 6.36E-04 2.30E-03 Limit mRem Percent of Limit %

Total Body mRem 6.00E-04 6.27E-04 4.42E-04 6.36E-04 2.30E-03 Limit mRem Percent of Limit %

Thyroid mRem 6.01E-04 6.28E-04 4.42E-04 6.36E-04 2.31E-03 Limit mRem Percent of Limit %

Kidney mRem 8.58E-05 8.85E-05 7.50E-05 9.09E-05 3.40E-04 Limit mRem Percent of Limit %

Lung mRem 6.00E-04 6.27E-04 4.42E-04 6.36E-04 2.30E-03 Limit mRem Percent of Limit %

GI-Lli mRem 6.00E-04 6.27E-04 4.42E-04 6.36E-04 2.30E-03 Limit mRem Percent of Limit %

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Page 1 of 1 Friday, February 11, 2022 2:56:54PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, App B, Sec Air Doses Due To Gaseous Releases Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 NG Dose Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Gamma Air mRad 2.62E-04 5.10E-04 1.09E-03 2.95E-04 2.15E-03 Limit mRad Percent of Limit %

Beta Air mRad 1.06E-04 1.91E-04 4.64E-04 6.33E-04 1.39E-03 Limit mRad Percent of Limit %

NG Total Body mRem 2.49E-04 4.82E-04 1.03E-03 2.52E-04 2.01E-03 Limit mRem Percent of Limit %

NG Skin mRem 3.75E-04 7.14E-04 1.53E-03 6.25E-04 3.25E-03 Limit mRem Percent of Limit %

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Page 1 of 1 Friday, February 11, 2022 2:55:40PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, App B, Sec Air Doses Due To Gaseous Releases Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 NG Dose Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Gamma Air mRad 1.54E-04 9.86E-05 1.31E-04 1.29E-04 5.13E-04 Limit mRad Percent of Limit %

Beta Air mRad 5.94E-05 5.70E-05 4.74E-05 4.61E-05 2.10E-04 Limit mRad Percent of Limit %

NG Total Body mRem 1.47E-04 9.33E-05 1.25E-04 1.23E-04 4.87E-04 Limit mRem Percent of Limit %

NG Skin mRem 2.19E-04 1.50E-04 1.83E-04 1.79E-04 7.31E-04 Limit mRem Percent of Limit %

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Page 1 of 1 Friday, February 11, 2022 2:56:21PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, App B, Sec Air Doses Due To Gaseous Releases Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 NG Dose Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Gamma Air mRad 1.08E-04 4.11E-04 9.55E-04 1.66E-04 1.64E-03 Limit mRad Percent of Limit %

Beta Air mRad 4.69E-05 1.34E-04 4.16E-04 5.87E-04 1.18E-03 Limit mRad Percent of Limit %

NG Total Body mRem 1.03E-04 3.89E-04 9.03E-04 1.29E-04 1.52E-03 Limit mRem Percent of Limit %

NG Skin mRem 1.55E-04 5.64E-04 1.35E-03 4.46E-04 2.52E-03 Limit mRem Percent of Limit %

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Page 1 of 1 Friday, February 11, 2022 3:11:11PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, App B, Sec Doses to a member of the public due to Liquid Releases Unit: Site Starting: 1-Jan-2021 Ending: 31-Dec-2021 Organ Dose Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Bone mRem 2.27E-03 1.73E-03 1.54E-03 3.19E-04 5.85E-03 Limit mRem Percent of Limit %

Liver mRem 2.70E-03 3.56E-03 2.82E-03 1.90E-04 9.28E-03 Limit mRem Percent of Limit %

Total Body mRem 2.62E-03 2.90E-03 2.10E-03 2.20E-04 7.83E-03 Limit mRem Percent of Limit %

Thyroid mRem 2.31E-03 1.85E-03 1.13E-03 1.27E-04 5.41E-03 Limit mRem Percent of Limit %

Kidney mRem 2.76E-03 3.18E-03 2.02E-03 1.44E-04 8.11E-03 Limit mRem Percent of Limit %

Lung mRem 3.67E-03 2.54E-03 1.96E-03 1.52E-04 8.32E-03 Limit mRem Percent of Limit %

GI-Lli mRem 6.49E-03 8.91E-03 4.20E-02 2.56E-03 6.00E-02 Limit mRem Percent of Limit %

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Page 1 of 1 Friday, February 11, 2022 2:57:37PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, App B, Sec Doses to a member of the public due to Liquid Releases Unit: PSL1 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Organ Dose Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Bone mRem 1.13E-03 8.64E-04 7.68E-04 1.59E-04 2.92E-03 Limit mRem Percent of Limit %

Liver mRem 1.35E-03 1.78E-03 1.41E-03 9.52E-05 4.64E-03 Limit mRem Percent of Limit %

Total Body mRem 1.31E-03 1.45E-03 1.05E-03 1.10E-04 3.92E-03 Limit mRem Percent of Limit %

Thyroid mRem 1.16E-03 9.24E-04 5.63E-04 6.33E-05 2.71E-03 Limit mRem Percent of Limit %

Kidney mRem 1.38E-03 1.59E-03 1.01E-03 7.22E-05 4.05E-03 Limit mRem Percent of Limit %

Lung mRem 1.83E-03 1.27E-03 9.80E-04 7.61E-05 4.16E-03 Limit mRem Percent of Limit %

GI-Lli mRem 3.25E-03 4.46E-03 2.10E-02 1.28E-03 3.00E-02 Limit mRem Percent of Limit %

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Page 1 of 1 Friday, February 11, 2022 2:58:12PM Florida Power & Light St. Lucie Power Plant Reg. Guide 1.21, App B, Sec Doses to a member of the public due to Liquid Releases Unit: PSL2 Starting: 1-Jan-2021 Ending: 31-Dec-2021 Organ Dose Units 1ST Quarter 2ND Quarter 3RD Quarter 4TH Quarter Annual Bone mRem 1.13E-03 8.64E-04 7.68E-04 1.59E-04 2.92E-03 Limit mRem Percent of Limit %

Liver mRem 1.35E-03 1.78E-03 1.41E-03 9.52E-05 4.64E-03 Limit mRem Percent of Limit %

Total Body mRem 1.31E-03 1.45E-03 1.05E-03 1.10E-04 3.92E-03 Limit mRem Percent of Limit %

Thyroid mRem 1.16E-03 9.24E-04 5.63E-04 6.33E-05 2.71E-03 Limit mRem Percent of Limit %

Kidney mRem 1.38E-03 1.59E-03 1.01E-03 7.22E-05 4.05E-03 Limit mRem Percent of Limit %

Lung mRem 1.83E-03 1.27E-03 9.80E-04 7.61E-05 4.16E-03 Limit mRem Percent of Limit %

GI-Lli mRem 3.25E-03 4.46E-03 2.10E-02 1.28E-03 3.00E-02 Limit mRem Percent of Limit %

User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Liquid Status Summary Report Friday, February 11, 2022 15:01 Page 4 of 6 Period: Ann, 2021 Site/Unit/Discharge Point: Site Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Xe-135 N 5.193E+01 2.432E-10 1.216E-07 9.156E-14 4.578E-11 Kr-85m N 3.250E+00 1.522E-11 7.611E-09 5.730E-15 2.865E-12 Ar-41 N 1.481E+02 6.937E-10 3.469E-07 2.612E-13 1.306E-10 Xe-133 N 1.788E+04 8.374E-08 4.187E-05 3.152E-11 1.576E-08 Xe-131m N 5.752E+01 2.694E-10 1.347E-07 1.014E-13 5.071E-11 Xe-133m N 1.466E+02 6.868E-10 3.434E-07 2.585E-13 1.293E-10 Kr-88 N 8.821E+00 4.131E-11 2.066E-08 1.555E-14 7.776E-12 Nuclide Type Total 1.829E+04 8.569E-08 4.284E-05 3.226E-11 1.613E-08 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Ni-63 O 3.812E+03 1.785E-08 1.785E-05 6.721E-12 6.721E-09 H-3 O 8.076E+08 3.783E-03 3.783E-01 1.424E-06 1.424E-04 C-14 O 1.417E+04 6.637E-08 2.212E-04 2.498E-11 8.328E-08 Nuclide Type Total 8.077E+08 3.783E-03 3.785E-01 1.424E-06 1.425E-04 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Ni-65 P 1.764E+01 8.261E-11 8.261E-08 3.110E-14 3.110E-11 Sb-122 P 5.450E+01 2.553E-10 2.553E-06 9.609E-14 9.609E-10 Te-129m P 7.818E+02 3.662E-09 5.231E-05 1.378E-12 1.969E-08 Cs-137 P 1.905E+02 8.921E-10 8.921E-05 3.358E-13 3.358E-08 Te-132 P 1.160E+02 5.431E-10 6.035E-06 2.045E-13 2.272E-09 Sb-125 P 5.426E+03 2.542E-08 8.472E-05 9.568E-12 3.189E-08 Sr-91 P 4.146E+00 1.942E-11 9.710E-08 7.311E-15 3.655E-11 Y-92 P 7.425E+01 3.478E-10 8.695E-07 1.309E-13 3.273E-10 Nb-97 P 1.019E+03 4.773E-09 1.591E-06 1.797E-12 5.989E-10 Sb-124 P 3.033E+03 1.420E-08 2.029E-04 5.347E-12 7.639E-08 W-187 P 1.191E+01 5.581E-11 1.860E-07 2.101E-14 7.003E-11 Co-58 P 5.884E+03 2.756E-08 1.378E-04 1.037E-11 5.187E-08 Be-7 P 1.848E+02 8.655E-10 0.000E+00 3.258E-13 0.000E+00 Zn-65 P 2.636E+02 1.235E-09 2.469E-05 4.648E-13 9.296E-09 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Liquid Status Summary Report Friday, February 11, 2022 15:01 Page 5 of 6 Period: Ann, 2021 Site/Unit/Discharge Point: Site Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Mn-54 P 5.897E+02 2.762E-09 9.207E-06 1.040E-12 3.466E-09 Ag-110m P 7.719E+02 3.615E-09 6.025E-05 1.361E-12 2.268E-08 Ru-103 P 5.632E+00 2.638E-11 8.793E-08 9.931E-15 3.310E-11 Cr-51 P 1.024E+03 4.798E-09 9.596E-07 1.806E-12 3.612E-10 Fe-59 P 1.545E+02 7.234E-10 7.234E-06 2.723E-13 2.723E-09 Co-60 P 6.836E+03 3.202E-08 1.067E-03 1.205E-11 4.018E-07 Nb-95 P 1.262E+03 5.909E-09 1.970E-05 2.224E-12 7.415E-09 La-140 P 2.747E+02 1.287E-09 1.430E-05 4.844E-13 5.382E-09 Te-123m P 7.450E+01 3.490E-10 0.000E+00 1.314E-13 0.000E+00 Na-24 P 1.026E+02 4.804E-10 9.608E-07 1.809E-13 3.617E-10 Zr-95 P 6.895E+02 3.230E-09 1.615E-05 1.216E-12 6.079E-09 Nuclide Type Total 2.885E+04 1.351E-07 1.799E-03 5.086E-11 6.773E-07 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL I-131 R 2.183E+00 1.023E-11 1.023E-06 3.850E-15 3.850E-10 I-132 R 1.190E+02 5.573E-10 5.573E-07 2.098E-13 2.098E-10 Nuclide Type Total 1.212E+02 5.675E-10 1.580E-06 2.136E-13 5.948E-10 Total 8.077E+08 3.783E-03 3.804E-01 1.424E-06 1.432E-04 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Liquid Status Summary Report Friday, February 11, 2022 15:01 Page 6 of 6 Period: Ann, 2021 Site/Unit/Discharge Point: Site Liquid Dose Summary - Note: All Doses in mRem Receptor Agegroup Bone Liver Total Body Thyroid Kidney Lung GI-Lli Skin Liquid Receptor - Teenager Teenager 5.848E-03 9.281E-03 7.834E-03 5.414E-03 8.108E-03 8.323E-03 5.998E-02 0.000E+00 Liquid Recptor - Child Child 3.553E-03 6.901E-03 6.659E-03 5.005E-03 3.538E-03 6.255E-03 2.549E-02 0.000E+00 Maximum Dose by Organ: 5.848E-03 9.281E-03 7.834E-03 5.414E-03 8.108E-03 8.323E-03 5.998E-02 0.000E+00 Maximum Organ Dose (mRem): 5.998E-02 Maximum Total Body Dose (mRem): 7.834E-03 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Liquid Status Summary Report Friday, February 11, 2022 14:59 Page 4 of 6 Period: Ann, 2021 Site/Unit/Discharge Point: PSL1 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Xe-135 N 2.596E+01 2.432E-10 1.216E-07 9.156E-14 4.578E-11 Kr-88 N 4.410E+00 4.131E-11 2.066E-08 1.555E-14 7.776E-12 Ar-41 N 7.406E+01 6.937E-10 3.469E-07 2.612E-13 1.306E-10 Xe-131m N 2.876E+01 2.694E-10 1.347E-07 1.014E-13 5.071E-11 Xe-133 N 8.939E+03 8.374E-08 4.187E-05 3.152E-11 1.576E-08 Xe-133m N 7.332E+01 6.868E-10 3.434E-07 2.585E-13 1.293E-10 Kr-85m N 1.625E+00 1.522E-11 7.611E-09 5.730E-15 2.865E-12 Nuclide Type Total 9.147E+03 8.569E-08 4.284E-05 3.226E-11 1.613E-08 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Ni-63 O 1.906E+03 1.785E-08 1.785E-05 6.721E-12 6.721E-09 H-3 O 4.038E+08 3.783E-03 3.783E-01 1.424E-06 1.424E-04 C-14 O 7.085E+03 6.637E-08 2.212E-04 2.498E-11 8.328E-08 Nuclide Type Total 4.038E+08 3.783E-03 3.785E-01 1.424E-06 1.425E-04 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Co-60 P 3.418E+03 3.202E-08 1.067E-03 1.205E-11 4.018E-07 Be-7 P 9.239E+01 8.655E-10 0.000E+00 3.258E-13 0.000E+00 Zr-95 P 3.448E+02 3.230E-09 1.615E-05 1.216E-12 6.079E-09 Zn-65 P 1.318E+02 1.235E-09 2.469E-05 4.648E-13 9.296E-09 Cr-51 P 5.122E+02 4.798E-09 9.596E-07 1.806E-12 3.612E-10 Y-92 P 3.713E+01 3.478E-10 8.695E-07 1.309E-13 3.273E-10 Sb-124 P 1.516E+03 1.420E-08 2.029E-04 5.347E-12 7.639E-08 Ru-103 P 2.816E+00 2.638E-11 8.793E-08 9.931E-15 3.310E-11 Nb-95 P 6.308E+02 5.909E-09 1.970E-05 2.224E-12 7.415E-09 La-140 P 1.374E+02 1.287E-09 1.430E-05 4.844E-13 5.382E-09 Na-24 P 5.128E+01 4.804E-10 9.608E-07 1.809E-13 3.617E-10 Sr-91 P 2.073E+00 1.942E-11 9.710E-08 7.311E-15 3.655E-11 Ag-110m P 3.859E+02 3.615E-09 6.025E-05 1.361E-12 2.268E-08 Cs-137 P 9.523E+01 8.921E-10 8.921E-05 3.358E-13 3.358E-08 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Liquid Status Summary Report Friday, February 11, 2022 14:59 Page 5 of 6 Period: Ann, 2021 Site/Unit/Discharge Point: PSL1 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Te-132 P 5.798E+01 5.431E-10 6.035E-06 2.045E-13 2.272E-09 Nb-97 P 5.095E+02 4.773E-09 1.591E-06 1.797E-12 5.989E-10 Sb-122 P 2.725E+01 2.553E-10 2.553E-06 9.609E-14 9.609E-10 Te-129m P 3.909E+02 3.662E-09 5.231E-05 1.378E-12 1.969E-08 Mn-54 P 2.949E+02 2.762E-09 9.207E-06 1.040E-12 3.466E-09 Fe-59 P 7.723E+01 7.234E-10 7.234E-06 2.723E-13 2.723E-09 W-187 P 5.957E+00 5.581E-11 1.860E-07 2.101E-14 7.003E-11 Te-123m P 3.725E+01 3.490E-10 0.000E+00 1.314E-13 0.000E+00 Sb-125 P 2.713E+03 2.542E-08 8.472E-05 9.568E-12 3.189E-08 Co-58 P 2.942E+03 2.756E-08 1.378E-04 1.037E-11 5.187E-08 Ni-65 P 8.818E+00 8.261E-11 8.261E-08 3.110E-14 3.110E-11 Nuclide Type Total 1.442E+04 1.351E-07 1.799E-03 5.086E-11 6.773E-07 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL I-131 R 1.092E+00 1.023E-11 1.023E-06 3.850E-15 3.850E-10 I-132 R 5.949E+01 5.573E-10 5.573E-07 2.098E-13 2.098E-10 Nuclide Type Total 6.058E+01 5.675E-10 1.580E-06 2.136E-13 5.948E-10 Total 4.039E+08 3.783E-03 3.804E-01 1.424E-06 1.432E-04 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Liquid Status Summary Report Friday, February 11, 2022 14:59 Page 6 of 6 Period: Ann, 2021 Site/Unit/Discharge Point: PSL1 Liquid Dose Summary - Note: All Doses in mRem Receptor Agegroup Bone Liver Total Body Thyroid Kidney Lung GI-Lli Skin Liquid Receptor - Teenager Teenager 2.924E-03 4.640E-03 3.917E-03 2.707E-03 4.054E-03 4.162E-03 2.999E-02 0.000E+00 Liquid Recptor - Child Child 1.777E-03 3.451E-03 3.329E-03 2.503E-03 1.769E-03 3.128E-03 1.274E-02 0.000E+00 Maximum Dose by Organ: 2.924E-03 4.640E-03 3.917E-03 2.707E-03 4.054E-03 4.162E-03 2.999E-02 0.000E+00 Maximum Organ Dose (mRem): 2.999E-02 Maximum Total Body Dose (mRem): 3.917E-03 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Liquid Status Summary Report Friday, February 11, 2022 15:00 Page 4 of 6 Period: Ann, 2021 Site/Unit/Discharge Point: PSL2 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Ar-41 N 7.406E+01 6.937E-10 3.469E-07 2.612E-13 1.306E-10 Xe-133 N 8.939E+03 8.374E-08 4.187E-05 3.152E-11 1.576E-08 Kr-85m N 1.625E+00 1.522E-11 7.611E-09 5.730E-15 2.865E-12 Kr-88 N 4.410E+00 4.131E-11 2.066E-08 1.555E-14 7.776E-12 Xe-135 N 2.596E+01 2.432E-10 1.216E-07 9.156E-14 4.578E-11 Xe-133m N 7.332E+01 6.868E-10 3.434E-07 2.585E-13 1.293E-10 Xe-131m N 2.876E+01 2.694E-10 1.347E-07 1.014E-13 5.071E-11 Nuclide Type Total 9.147E+03 8.569E-08 4.284E-05 3.226E-11 1.613E-08 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL H-3 O 4.038E+08 3.783E-03 3.783E-01 1.424E-06 1.424E-04 C-14 O 7.085E+03 6.637E-08 2.212E-04 2.498E-11 8.328E-08 Ni-63 O 1.906E+03 1.785E-08 1.785E-05 6.721E-12 6.721E-09 Nuclide Type Total 4.038E+08 3.783E-03 3.785E-01 1.424E-06 1.425E-04 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Co-60 P 3.418E+03 3.202E-08 1.067E-03 1.205E-11 4.018E-07 La-140 P 1.374E+02 1.287E-09 1.430E-05 4.844E-13 5.382E-09 Nb-97 P 5.095E+02 4.773E-09 1.591E-06 1.797E-12 5.989E-10 Sb-124 P 1.516E+03 1.420E-08 2.029E-04 5.347E-12 7.639E-08 Ru-103 P 2.816E+00 2.638E-11 8.793E-08 9.931E-15 3.310E-11 Cr-51 P 5.122E+02 4.798E-09 9.596E-07 1.806E-12 3.612E-10 Te-123m P 3.725E+01 3.490E-10 0.000E+00 1.314E-13 0.000E+00 Fe-59 P 7.723E+01 7.234E-10 7.234E-06 2.723E-13 2.723E-09 Cs-137 P 9.523E+01 8.921E-10 8.921E-05 3.358E-13 3.358E-08 Te-132 P 5.798E+01 5.431E-10 6.035E-06 2.045E-13 2.272E-09 Sb-122 P 2.725E+01 2.553E-10 2.553E-06 9.609E-14 9.609E-10 Sb-125 P 2.713E+03 2.542E-08 8.472E-05 9.568E-12 3.189E-08 Na-24 P 5.128E+01 4.804E-10 9.608E-07 1.809E-13 3.617E-10 Mn-54 P 2.949E+02 2.762E-09 9.207E-06 1.040E-12 3.466E-09 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Liquid Status Summary Report Friday, February 11, 2022 15:00 Page 5 of 6 Period: Ann, 2021 Site/Unit/Discharge Point: PSL2 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL Ni-65 P 8.818E+00 8.261E-11 8.261E-08 3.110E-14 3.110E-11 Y-92 P 3.713E+01 3.478E-10 8.695E-07 1.309E-13 3.273E-10 Ag-110m P 3.859E+02 3.615E-09 6.025E-05 1.361E-12 2.268E-08 W-187 P 5.957E+00 5.581E-11 1.860E-07 2.101E-14 7.003E-11 Zn-65 P 1.318E+02 1.235E-09 2.469E-05 4.648E-13 9.296E-09 Co-58 P 2.942E+03 2.756E-08 1.378E-04 1.037E-11 5.187E-08 Zr-95 P 3.448E+02 3.230E-09 1.615E-05 1.216E-12 6.079E-09 Nb-95 P 6.308E+02 5.909E-09 1.970E-05 2.224E-12 7.415E-09 Te-129m P 3.909E+02 3.662E-09 5.231E-05 1.378E-12 1.969E-08 Be-7 P 9.239E+01 8.655E-10 0.000E+00 3.258E-13 0.000E+00 Sr-91 P 2.073E+00 1.942E-11 9.710E-08 7.311E-15 3.655E-11 Nuclide Type Total 1.442E+04 1.351E-07 1.799E-03 5.086E-11 6.773E-07 Nuclide Type Activity (uCi) Avg Conc (uCi/mL) Avg Conc/10xECL Dil Conc (uCi/mL) Dil Conc/10xECL I-132 R 5.949E+01 5.573E-10 5.573E-07 2.098E-13 2.098E-10 I-131 R 1.092E+00 1.023E-11 1.023E-06 3.850E-15 3.850E-10 Nuclide Type Total 6.058E+01 5.675E-10 1.580E-06 2.136E-13 5.948E-10 Total 4.039E+08 3.783E-03 3.804E-01 1.424E-06 1.432E-04 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Liquid Status Summary Report Friday, February 11, 2022 15:00 Page 6 of 6 Period: Ann, 2021 Site/Unit/Discharge Point: PSL2 Liquid Dose Summary - Note: All Doses in mRem Receptor Agegroup Bone Liver Total Body Thyroid Kidney Lung GI-Lli Skin Liquid Receptor - Teenager Teenager 2.924E-03 4.640E-03 3.917E-03 2.707E-03 4.054E-03 4.162E-03 2.999E-02 0.000E+00 Liquid Recptor - Child Child 1.777E-03 3.451E-03 3.329E-03 2.503E-03 1.769E-03 3.128E-03 1.274E-02 0.000E+00 Maximum Dose by Organ: 2.924E-03 4.640E-03 3.917E-03 2.707E-03 4.054E-03 4.162E-03 2.999E-02 0.000E+00 Maximum Organ Dose (mRem): 2.999E-02 Maximum Total Body Dose (mRem): 3.917E-03 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Gas Status Summary Report Friday, February 11, 2022 13:22 Page 13 of 15 Period: Ann, 2021 Site/Unit/Discharge Point: Site Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

Xe-135 N 2.177E+05 6.073E-11 8.675E-05 6.904E-03 Xe-135m N 5.471E+05 1.526E-10 3.814E-04 1.735E-02 Kr-88 N 2.535E+02 7.071E-14 7.857E-07 8.039E-06 Xe-138 N 4.314E+02 1.203E-13 6.016E-07 1.368E-05 Xe-127 N 6.480E+01 1.807E-14 0.000E+00 2.055E-06 Xe-133 N 1.070E+06 2.983E-10 5.967E-05 3.392E-02 Xe-131m N 1.065E+07 2.971E-09 1.486E-04 3.378E-01 Kr-89 N 1.825E+04 5.090E-12 5.090E-04 5.787E-04 Xe-133m N 1.362E+03 3.798E-13 6.330E-08 4.318E-05 Kr-85m N 3.829E+04 1.068E-11 1.068E-05 1.214E-03 Ar-41 N 4.061E+06 1.133E-09 1.133E-02 1.288E-01 Kr-87 N 1.231E+02 3.435E-14 1.717E-07 3.905E-06 Nuclide Type Total 1.661E+07 4.632E-09 1.253E-02 5.266E-01 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

H-3 O 1.175E+07 3.278E-09 3.278E-03 3.726E-01 G-Alpha O 3.889E-02 1.085E-17 1.085E-03 1.233E-09 C-14 O 2.050E+07 5.718E-09 1.906E-01 6.501E-01 Nuclide Type Total 3.225E+07 8.996E-09 1.950E-01 1.023E+00 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

Cr-51 P 5.095E-01 1.421E-16 4.737E-10 1.616E-08 Co-60 P 2.949E-01 8.224E-17 1.645E-07 9.350E-09 Nb-95 P 2.893E-01 8.069E-17 4.034E-09 9.173E-09 Zn-65 P 3.930E-01 1.096E-16 2.741E-08 1.246E-08 Nuclide Type Total 1.487E+00 4.147E-16 1.964E-07 4.714E-08 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

I-133 R 3.092E+01 8.625E-15 8.625E-07 9.806E-07 I-131 R 6.415E+00 1.789E-15 8.947E-07 2.034E-07 Nuclide Type Total 3.734E+01 1.041E-14 1.757E-06 1.184E-06 Total 4.886E+07 1.363E-08 2.075E-01 1.549E+00 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Gas Status Summary Report Friday, February 11, 2022 13:22 Page 14 of 15 Period: Ann, 2021 Site/Unit/Discharge Point: Site Site Boundary NNG Doserate Summary - Note: All Doses in mRem/yr Receptor Agegroup Bone Liver Total Body Thyroid Kidney Lung GI-Lli Skin NW Site Boundary - In Infant 5.251E-03 4.712E-03 4.712E-03 4.722E-03 7.337E-04 4.712E-03 4.712E-03 0.000E+00 WNW Site Boundary - I Infant 6.887E-08 6.887E-08 6.887E-08 6.887E-08 6.887E-08 6.887E-08 6.887E-08 0.000E+00 Maximum Doserate by Organ: 5.251E-03 4.712E-03 4.712E-03 4.722E-03 7.337E-04 4.712E-03 4.712E-03 0.000E+00 Maximum Organ Doserate (mRem/yr): 5.251E-03 Maximum Total Body Doserate (mRem/yr): 4.712E-03 Site Boundary NG Doserate Summary Gas Receptor Location Gamma (mRad/yr) Beta (mRad/yr) Total Body (mRem/yr) Skin (mRem/yr)

NW Site Boundary 2.153E-03 1.394E-03 2.011E-03 3.249E-03 WNW Site Boundary 1.855E-03 1.201E-03 1.733E-03 2.799E-03 Maximum NG Dose Rate: 2.153E-03 1.394E-03 2.011E-03 3.249E-03 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Gas Status Summary Report Friday, February 11, 2022 13:22 Page 15 of 15 Period: Ann, 2021 Site/Unit/Discharge Point: Site Maximum Individual NNG Dose Summary - Note: All Doses in mRem Receptor Agegroup Bone Liver Total Body Thyroid Kidney Lung GI-Lli Skin NW - Near Milk - Adult Adult 3.382E-08 4.824E-08 2.737E-08 1.418E-05 8.073E-08 2.795E-09 1.734E-08 0.000E+00 NW Near Milk - Child Child 1.290E-07 1.343E-07 9.711E-08 4.161E-05 8.262E-08 2.778E-09 1.781E-08 0.000E+00 NW Near Milk - Infant Infant 2.621E-07 3.172E-07 1.791E-07 9.883E-05 7.649E-08 2.768E-09 1.835E-08 0.000E+00 NW Near Milk - Teenager Teenager 5.604E-08 7.946E-08 4.599E-08 2.126E-05 1.018E-07 2.795E-09 2.117E-08 0.000E+00 SE Nearest Res - Adult Adult 2.412E-08 2.899E-08 2.119E-08 3.106E-06 3.842E-08 1.630E-08 2.199E-08 0.000E+00 SE Nearest Res - Child Child 3.123E-08 3.346E-08 2.491E-08 4.733E-06 2.644E-08 1.623E-08 1.971E-08 0.000E+00 SE Nearest Res - Infant Infant 2.818E-08 3.235E-08 2.250E-08 4.366E-06 2.005E-08 1.619E-08 1.762E-08 0.000E+00 SE Nearest Res - Teenager Teenager 2.724E-08 3.363E-08 2.314E-08 3.861E-06 3.842E-08 1.630E-08 2.269E-08 0.000E+00 SE Visitor - Lifeguard 1.0 mi Adult 1.098E-08 1.311E-08 9.703E-09 1.356E-06 1.722E-08 7.568E-09 1.005E-08 0.000E+00 W Near Garden - Adult Adult 1.087E-08 1.288E-08 9.658E-09 1.283E-06 1.677E-08 7.639E-09 9.986E-09 0.000E+00 W Near Garden - Child Child 1.380E-08 1.472E-08 1.119E-08 1.955E-06 1.183E-08 7.608E-09 9.045E-09 0.000E+00 W Near Garden - Teenager Teenager 1.215E-08 1.479E-08 1.046E-08 1.595E-06 1.677E-08 7.639E-09 1.028E-08 0.000E+00 Maximum Dose by Organ: 2.621E-07 3.172E-07 1.791E-07 9.883E-05 1.018E-07 1.630E-08 2.269E-08 0.000E+00 Maximum Organ Dose (mRem): 9.883E-05 Maximum Total Body Dose (mRem): 1.791E-07 Maximum Individual NG Dose Summary Gas Receptor Location Gamma (mRad) Beta (mRad) Total Body (mRem) Skin (mRem)

NW Near Milk 4.25 mi 1.884E-04 1.220E-04 1.760E-04 2.843E-04 SE Nearest Res 1.52 mi 142 deg 9.582E-04 6.204E-04 8.953E-04 1.446E-03 SE Visitor @ 1 mi 4.149E-04 2.686E-04 3.876E-04 6.261E-04 W Near Gard 2.0 miles 3.297E-04 2.134E-04 3.080E-04 4.975E-04 Maximum NG Dose: 9.582E-04 6.204E-04 8.953E-04 1.446E-03 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Gas Status Summary Report Friday, February 11, 2022 13:21 Page 8 of 10 Period: Ann, 2021 Site/Unit/Discharge Point: PSL1 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

Xe-133 N 1.881E+05 1.127E-10 2.255E-05 5.963E-03 Kr-87 N 1.231E+02 7.383E-14 3.691E-07 3.905E-06 Xe-135 N 1.741E+05 1.044E-10 1.491E-04 5.522E-03 Ar-41 N 1.009E+06 6.052E-10 6.052E-03 3.201E-02 Xe-135m N 2.577E+02 1.545E-13 3.862E-07 8.170E-06 Xe-133m N 1.154E+03 6.921E-13 1.153E-07 3.661E-05 Xe-127 N 4.255E+01 2.551E-14 0.000E+00 1.349E-06 Kr-88 N 2.535E+02 1.520E-13 1.689E-06 8.039E-06 Xe-138 N 3.949E+02 2.367E-13 1.184E-06 1.252E-05 Kr-89 N 1.825E+04 1.094E-11 1.094E-03 5.787E-04 Nuclide Type Total 1.392E+06 8.346E-10 7.322E-03 4.414E-02 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

C-14 O 1.019E+07 6.106E-09 2.035E-01 3.230E-01 H-3 O 8.792E+06 5.271E-09 5.271E-03 2.788E-01 G-Alpha O 3.671E-02 2.201E-17 2.201E-03 1.164E-09 Nuclide Type Total 1.898E+07 1.138E-08 2.110E-01 6.018E-01 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

Nb-95 P 1.158E-01 6.942E-17 3.471E-09 3.672E-09 Nuclide Type Total 1.158E-01 6.942E-17 3.471E-09 3.672E-09 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

I-133 R 3.078E+01 1.845E-14 1.845E-06 9.760E-07 I-131 R 3.550E+00 2.128E-15 1.064E-06 1.126E-07 Nuclide Type Total 3.433E+01 2.058E-14 2.909E-06 1.089E-06 Total 2.037E+07 1.221E-08 2.183E-01 6.459E-01 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Gas Status Summary Report Friday, February 11, 2022 13:21 Page 9 of 10 Period: Ann, 2021 Site/Unit/Discharge Point: PSL1 Site Boundary NNG Doserate Summary - Note: All Doses in mRem/yr Receptor Agegroup Bone Liver Total Body Thyroid Kidney Lung GI-Lli Skin NW Site Boundary - In Infant 2.609E-03 2.407E-03 2.407E-03 2.415E-03 3.935E-04 2.407E-03 2.407E-03 0.000E+00 WNW Site Boundary - I Infant 5.104E-08 5.104E-08 5.104E-08 5.104E-08 5.104E-08 5.104E-08 5.104E-08 0.000E+00 Maximum Doserate by Organ: 2.609E-03 2.407E-03 2.407E-03 2.415E-03 3.935E-04 2.407E-03 2.407E-03 0.000E+00 Maximum Organ Doserate (mRem/yr): 2.609E-03 Maximum Total Body Doserate (mRem/yr): 2.407E-03 Site Boundary NG Doserate Summary Gas Receptor Location Gamma (mRad/yr) Beta (mRad/yr) Total Body (mRem/yr) Skin (mRem/yr)

NW Site Boundary 5.131E-04 2.099E-04 4.874E-04 7.312E-04 WNW Site Boundary 4.420E-04 1.808E-04 4.198E-04 6.299E-04 Maximum NG Dose Rate: 5.131E-04 2.099E-04 4.874E-04 7.312E-04 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Gas Status Summary Report Friday, February 11, 2022 13:21 Page 10 of 10 Period: Ann, 2021 Site/Unit/Discharge Point: PSL1 Maximum Individual NNG Dose Summary - Note: All Doses in mRem Receptor Agegroup Bone Liver Total Body Thyroid Kidney Lung GI-Lli Skin NW - Near Milk - Adult Adult 2.112E-08 3.032E-08 1.682E-08 8.554E-06 5.058E-08 2.048E-09 1.206E-08 0.000E+00 NW Near Milk - Child Child 7.883E-08 8.286E-08 5.823E-08 2.516E-05 5.100E-08 2.048E-09 1.270E-08 0.000E+00 NW Near Milk - Infant Infant 1.587E-07 1.940E-07 1.066E-07 5.941E-05 4.706E-08 2.048E-09 1.298E-08 0.000E+00 NW Near Milk - Teenager Teenager 3.471E-08 4.960E-08 2.792E-08 1.284E-05 6.335E-08 2.048E-09 1.490E-08 0.000E+00 SE Nearest Res - Adult Adult 1.868E-08 2.302E-08 1.599E-08 2.507E-06 3.117E-08 1.198E-08 1.746E-08 0.000E+00 SE Nearest Res - Child Child 2.477E-08 2.697E-08 1.898E-08 3.960E-06 2.084E-08 1.198E-08 1.538E-08 0.000E+00 SE Nearest Res - Infant Infant 2.218E-08 2.603E-08 1.707E-08 3.658E-06 1.534E-08 1.198E-08 1.338E-08 0.000E+00 SE Nearest Res - Teenager Teenager 2.137E-08 2.709E-08 1.755E-08 3.163E-06 3.117E-08 1.198E-08 1.818E-08 0.000E+00 SE Visitor - Lifeguard 1.0 mi Adult 8.488E-09 1.038E-08 7.313E-09 1.095E-06 1.394E-08 5.565E-09 7.956E-09 0.000E+00 W Near Garden - Adult Adult 8.385E-09 1.018E-08 7.273E-09 1.036E-06 1.354E-08 5.620E-09 7.882E-09 0.000E+00 W Near Garden - Child Child 1.090E-08 1.181E-08 8.510E-09 1.636E-06 9.278E-09 5.620E-09 7.022E-09 0.000E+00 W Near Garden - Teenager Teenager 9.496E-09 1.186E-08 7.917E-09 1.307E-06 1.354E-08 5.620E-09 8.179E-09 0.000E+00 Maximum Dose by Organ: 1.587E-07 1.940E-07 1.066E-07 5.941E-05 6.335E-08 1.198E-08 1.818E-08 0.000E+00 Maximum Organ Dose (mRem): 5.941E-05 Maximum Total Body Dose (mRem): 1.066E-07 Maximum Individual NG Dose Summary Gas Receptor Location Gamma (mRad) Beta (mRad) Total Body (mRem) Skin (mRem)

NW Near Milk 4.25 mi 4.490E-05 1.836E-05 4.265E-05 6.398E-05 SE Nearest Res 1.52 mi 142 deg 2.284E-04 9.340E-05 2.169E-04 3.254E-04 SE Visitor @ 1 mi 9.889E-05 4.044E-05 9.393E-05 1.409E-04 W Near Gard 2.0 miles 7.858E-05 3.213E-05 7.463E-05 1.120E-04 Maximum NG Dose: 2.284E-04 9.340E-05 2.169E-04 3.254E-04 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Gas Status Summary Report Friday, February 11, 2022 13:18 Page 7 of 9 Period: Ann, 2021 Site/Unit/Discharge Point: PSL2 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

Xe-131m N 1.065E+07 5.556E-09 2.778E-04 3.378E-01 Kr-85m N 3.829E+04 1.997E-11 1.997E-05 1.214E-03 Xe-138 N 3.657E+01 1.907E-14 9.535E-08 1.159E-06 Xe-133m N 2.074E+02 1.082E-13 1.803E-08 6.576E-06 Xe-135m N 5.468E+05 2.852E-10 7.129E-04 1.734E-02 Xe-127 N 2.225E+01 1.161E-14 0.000E+00 7.057E-07 Xe-135 N 4.359E+04 2.274E-11 3.248E-05 1.382E-03 Xe-133 N 8.816E+05 4.598E-10 9.196E-05 2.796E-02 Ar-41 N 3.052E+06 1.592E-09 1.592E-02 9.677E-02 Nuclide Type Total 1.521E+07 7.935E-09 1.705E-02 4.825E-01 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

C-14 O 1.032E+07 5.381E-09 1.794E-01 3.271E-01 H-3 O 2.960E+06 1.544E-09 1.544E-03 9.386E-02 G-Alpha O 2.184E-03 1.139E-18 1.139E-04 6.924E-11 Nuclide Type Total 1.328E+07 6.924E-09 1.810E-01 4.210E-01 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

Cr-51 P 5.095E-01 2.657E-16 8.857E-10 1.616E-08 Co-60 P 2.949E-01 1.538E-16 3.076E-07 9.350E-09 Nb-95 P 1.735E-01 9.049E-17 4.524E-09 5.502E-09 Zn-65 P 3.930E-01 2.050E-16 5.125E-08 1.246E-08 Nuclide Type Total 1.371E+00 7.150E-16 3.642E-07 4.347E-08 Nuclide Type Activity (uCi) Avg Conc (uCi/cc) Avg Conc/10xECL Avg Rel Rate (uCi/sec)

I-133 R 1.440E-01 7.513E-17 7.513E-09 4.568E-09 I-131 R 2.866E+00 1.495E-15 7.473E-07 9.087E-08 Nuclide Type Total 3.010E+00 1.570E-15 7.548E-07 9.544E-08 Total 2.849E+07 1.486E-08 1.981E-01 9.035E-01 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Gas Status Summary Report Friday, February 11, 2022 13:18 Page 8 of 9 Period: Ann, 2021 Site/Unit/Discharge Point: PSL2 Site Boundary NNG Doserate Summary - Note: All Doses in mRem/yr Receptor Agegroup Bone Liver Total Body Thyroid Kidney Lung GI-Lli Skin NW Site Boundary - In Infant 2.642E-03 2.305E-03 2.305E-03 2.306E-03 3.402E-04 2.305E-03 2.305E-03 0.000E+00 WNW Site Boundary - I Infant 1.783E-08 1.783E-08 1.783E-08 1.783E-08 1.783E-08 1.783E-08 1.783E-08 0.000E+00 Maximum Doserate by Organ: 2.642E-03 2.305E-03 2.305E-03 2.306E-03 3.402E-04 2.305E-03 2.305E-03 0.000E+00 Maximum Organ Doserate (mRem/yr): 2.642E-03 Maximum Total Body Doserate (mRem/yr): 2.305E-03 Site Boundary NG Doserate Summary Gas Receptor Location Gamma (mRad/yr) Beta (mRad/yr) Total Body (mRem/yr) Skin (mRem/yr)

NW Site Boundary 1.640E-03 1.184E-03 1.524E-03 2.518E-03 WNW Site Boundary 1.413E-03 1.020E-03 1.313E-03 2.169E-03 Maximum NG Dose Rate: 1.640E-03 1.184E-03 1.524E-03 2.518E-03 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

Gas Status Summary Report Friday, February 11, 2022 13:18 Page 9 of 9 Period: Ann, 2021 Site/Unit/Discharge Point: PSL2 Maximum Individual NNG Dose Summary - Note: All Doses in mRem Receptor Agegroup Bone Liver Total Body Thyroid Kidney Lung GI-Lli Skin NW - Near Milk - Adult Adult 1.270E-08 1.792E-08 1.055E-08 5.630E-06 3.015E-08 7.477E-10 5.274E-09 0.000E+00 NW Near Milk - Child Child 5.022E-08 5.141E-08 3.888E-08 1.645E-05 3.162E-08 7.302E-10 5.112E-09 0.000E+00 NW Near Milk - Infant Infant 1.034E-07 1.232E-07 7.249E-08 3.942E-05 2.943E-08 7.208E-10 5.368E-09 0.000E+00 NW Near Milk - Teenager Teenager 2.133E-08 2.986E-08 1.807E-08 8.418E-06 3.848E-08 7.478E-10 6.273E-09 0.000E+00 SE Nearest Res - Adult Adult 5.441E-09 5.970E-09 5.207E-09 5.984E-07 7.249E-09 4.321E-09 4.528E-09 0.000E+00 SE Nearest Res - Child Child 6.455E-09 6.495E-09 5.931E-09 7.731E-07 5.601E-09 4.247E-09 4.330E-09 0.000E+00 SE Nearest Res - Infant Infant 5.995E-09 6.315E-09 5.436E-09 7.082E-07 4.717E-09 4.207E-09 4.242E-09 0.000E+00 SE Nearest Res - Teenager Teenager 5.866E-09 6.540E-09 5.592E-09 6.982E-07 7.249E-09 4.321E-09 4.512E-09 0.000E+00 SE Visitor - Lifeguard 1.0 mi Adult 2.492E-09 2.723E-09 2.390E-09 2.613E-07 3.281E-09 2.003E-09 2.093E-09 0.000E+00 W Near Garden - Adult Adult 2.481E-09 2.700E-09 2.385E-09 2.473E-07 3.228E-09 2.019E-09 2.104E-09 0.000E+00 W Near Garden - Child Child 2.900E-09 2.916E-09 2.684E-09 3.195E-07 2.547E-09 1.988E-09 2.023E-09 0.000E+00 W Near Garden - Teenager Teenager 2.657E-09 2.935E-09 2.544E-09 2.885E-07 3.228E-09 2.019E-09 2.098E-09 0.000E+00 Maximum Dose by Organ: 1.034E-07 1.232E-07 7.249E-08 3.942E-05 3.848E-08 4.321E-09 6.273E-09 0.000E+00 Maximum Organ Dose (mRem): 3.942E-05 Maximum Total Body Dose (mRem): 7.249E-08 Maximum Individual NG Dose Summary Gas Receptor Location Gamma (mRad) Beta (mRad) Total Body (mRem) Skin (mRem)

NW Near Milk 4.25 mi 1.435E-04 1.036E-04 1.334E-04 2.203E-04 SE Nearest Res 1.52 mi 142 deg 7.298E-04 5.270E-04 6.783E-04 1.121E-03 SE Visitor @ 1 mi 3.160E-04 2.282E-04 2.937E-04 4.852E-04 W Near Gard 2.0 miles 2.511E-04 1.813E-04 2.334E-04 3.855E-04 Maximum NG Dose: 7.298E-04 5.270E-04 6.783E-04 1.121E-03 User: admin [Server]: PSLSA137 [Database]: NEPSOEMP

L-2022-023 Enclosure TABLE 3.4 VISITOR DOSE (1 PAGE)

L-2022-023 Enclosure 3.4 Visitor Dose Dose to a Member of the Public from Activities Inside the Site Boundary Assessment of radiation dose from radioactive effluents to MEMBERS OF THE PUBLIC due to their activities inside the SITE BOUNDARY assumes the VISITOR to be a Lifeguard at the Walton Rocks Beach recreation area.

The visitor is assumed to be onsite for 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months per day for 312 days per year at a distance of 1 mile in the South East sector. The VISITOR received exposure from each of the two reactors on Site. Actual Met Data was used to calculate Visitor Dose for Calendar Year 2021, and the results are below.

Noble Gas Dose mrad Gamma Air Dose 9.79E-04 Beta Air Dose 6.34E-04 Gas, Particulate, Iodine, Carbon Dose mrem Bone 5.37E-09 Liver 6.41E-09 Thyroid 6.64E-07 Kidney 8.42E-09 Lung 3.70E-09 GI-LLI 4.92E-09 Total Body 4.75E-09

L-2022-023, Annual Radioactive Effluent Release Report

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L-2022-023, Annual Radioactive Effluent Release Report

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