Text

2023 Annual Radiological Environmental Operating Report
	ML24136A091
Person / Time
Site:	Turkey Point
Issue date:	05/15/2024
From:	Rasmus P; Florida Power & Light Co
To:	; Office of Nuclear Reactor Regulation, Document Control Desk
References
	L-2024-082
	Download: ML24136A091 (1)
	v • d • e

U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 May 15, 2024 Re:

Turkey Point Nuclear Plant, Units 3 and 4 Docket Nos. 50-250 and 50-251 2023 Annual Radiological Environmental Operating Report L-2024-082 10 CFR 50.36b Enclosed is the 2023 Annual Radiological Environmental Operating Report for Turkey Point Units 3 and 4, as requi'red by Technical Specification 5.6.1.

If you have any questions regarding this submittal, please contact Kenneth Mack at 561-904-3635.

Sincerely, Paul R smus General Manager, Regulatory Affairs Florida Power & Light Company

Enclosure:

Annual Radiological Environmental Operating Report (2023) cc:

USNRC Regional Administrator, Region II USNRC Project Manager, St. Lucie Nuclear Plant USNRC Resident Inspector, St. Lucie Nuclear Plant Florida Power & Light Company 9760 SW 344th Street, Homestead, FL 33035

ENCLOSURE Annual Radiological Environmental Operating Report (2023)

(55 pages follow)

Plant: Turkey Point Nuclear Units 3 & 4 Page 1 of 55 YEAR: 2023 Docket NOS Number: 50-250, 50-251 Annual Radiological Environmental Operating Report

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 2 of 55 Annual Radiological Environmental Operating Report TABLE OF CONTENTS 1.0 EXECUTIVE

SUMMARY

............................................................................................................. 5 1.1 Radiological Environmental Monitoring Program................................................................... 5 1.2 Reporting Levels................................................................................................................... 6 1.3 Sample Deviations................................................................................................................ 6 1.4 Program Modifications........................................................................................................... 6

2.0 INTRODUCTION

........................................................................................................................ 7 2.1 Radiological Environmental Monitoring Program................................................................... 7 A. Purpose............................................................................................................................ 7 2.2 Pathways Monitored.............................................................................................................. 8 2.3 Land Use Census.................................................................................................................. 8 3.0 RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM REQUIREMENTS...................... 9 4.0 INTERPRETATION AND TRENDS OF RESULTS.................................................................... 16 4.1 Air Particulate and Radioiodine Sample Results.................................................................. 16 4.2 Thermoluminescent Dosimetry (TLD) Sample Results........................................................ 17 4.3 Waterborne Sample Results................................................................................................ 17 4.3.1 Surface Water Results............................................................................................................... 17 4.3.2 Shoreline Sediment Sample Results......................................................................................... 18 4.4 Ingestion Sample Results.................................................................................................... 18 4.4.1 Crustacea and Fish Sample Results........................................................................................... 18 4.4.2 Broad Leaf Vegetation Sample Results...................................................................................... 18 4.5 Land Use Census Results................................................................................................... 18 4.6 Interlaboratory Comparison Results.................................................................................... 25 5.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

.......................... 25

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 3 of 55 Annual Radiological Environmental Operating Report ATTACHMENTS - Sample Deviations........................................................................................................ 29 - Monitoring Results Tables............................................................................................ 31 - Interlaboratory Comparison Program Results............................................................... 48 1.0 Summary....................................................................................................................................... 48 - Industry Initiative Ground Water Protection Program, 2023.......................................... 51 1.0 Description of Program.................................................................................................................. 51 2.0 Discussion..................................................................................................................................... 51 3.0 Results................................................................................................................................... 51 - ERRATA Data 2023...................................................................................................... 55 1.0 List of changes from the 2022 AREOR.......................................................................................... 55 TABLES Table 1: Exposure Pathway - Airborne........................................................................................ 9 Table 2: Exposure Pathway - Direct Radiation.......................................................................... 10 Table 3: Exposure Pathway - Waterborne................................................................................. 12 Table 4: Exposure Pathway - Ingestion..................................................................................... 13 Table 5: Land Use Census - 2023 Nearest Residence, Garden and Milk Animal Within 5 Miles............................................................................................................................ 19 Table 6: Radiological Environmental Monitoring Program Summary......................................... 26 Table 7: Sample Deviations Table............................................................................................. 29 Table 8: Air Particulate - Gross Beta......................................................................................... 32 Table 9: Air Particulate Composite - Gamma............................................................................ 33 Table 10: Air Cartridges - Iodine-131........................................................................................ 34 Table 11: Direct Radiation - Indicators...................................................................................... 35 Table 12: Direct Radiation-Control........................................................................................... 35 Table 13: Surface Water - Tritium and Gamma......................................................................... 36 Table 14: Shoreline Sediment - Gamma................................................................................... 37 Table 15: Crustacea - Gamma.................................................................................................. 38

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 4 of 55 Annual Radiological Environmental Operating Report TABLES (CONT'D)

Table 16: Fish - Gamma............................................................................................................ 39 Table 17: Broad Leaf Vegetation - Gamma............................................................................... 40 Table 18: Supplemental Direct Radiation - Indicators................................................................ 41 Table 19: Supplemental Air Particulate - Gross Beta................................................................. 42 Table 20: Supplemental Air Particulate Composite - Gamma.................................................... 43 Table 21: Supplemental Air Cartridges - Iodine-131.................................................................. 44 Table 22: Supplemental Surface Water - Tritium and Gamma.................................................. 45 Table 23: Supplemental Shoreline Sediment - Gamma............................................................. 46 Table 24: Supplemental Food Crops - Gamma......................................................................... 47 Table 25: DOE's Mixed Analyte Performance Evaluation Program (MAPEP) 48 results....................................................................................................................................... 49 Table 26: DOE's Mixed Analyte Performance Evaluation Program (MAPEP) 49 results....................................................................................................................................... 50 Table 27: Ground Water - Tritium.............................................................................................. 52 FIGURES Figure 1: Sample Collection Sites - Near Station....................................................................... 14 Figure 2: Sample Collection Sites - Distant from Station........................................................... 15 Figure 3: Turkey Point 2023 REMP Gross Beta in Air, pCi/m3................................................... 16 Figure 4: 2023 PTN Direct Exposure TLDs: Quarterly Collection.............................................. 17 Figure 5: Onsite Tritium Monitoring Wells.................................................................................. 54

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 5 of 55 Annual Radiological Environmental Operating Report 1.0 EXECUTIVE

SUMMARY

1.1 Radiological Environmental Monitoring Program The data obtained through the Turkey Point Radiological Environmental Monitoring Program (REMP) verifies that the levels of radiation and concentrations of radioactive materials in environmental samples are not increasing. These measurements verify that the dose or dose commitment to members of the public, due to operation of Turkey Point Units 3 & 4, during the surveillance year, is well within the limits established by 10 CFR 50, Appendix I. The sampling period was from January 1, 2023 to December 31, 2023. Additionally, supplemental samples collected by the State of Florida, Department of Health (DOH), do not indicate adverse trends in the radiological environment.

All required lower limit of detection (LLD) capabilities were achieved in all sample analyses during 2023, as required by the Turkey Point Units 3 & 4 ODCM. No measurable levels of radiation above baseline levels attributable to Turkey Point Nuclear operation were detected in the vicinity of PTN. The 2023 REMP thus substantiated the adequacy of source control and effluent monitoring at Turkey Point Nuclear with no observed impact of plant operations on the environment.

Turkey Point Nuclear established the REMP prior to the stations becoming operational to provide data on background radiation and radioactivity normally present in the area. PTN has continued to monitor the environment by sampling air, water, sediment, crustacea, fish and broadleaf vegetation, as well as measuring direct radiation. PTN also samples milk if milk-producing animals used for human consumption are present within five miles (8 km) of the plant.

The REMP includes sampling indicator and control locations within an approximate 20-mile radius of the plant. The REMP utilizes indicator locations near the site to show any increases or buildup of radioactivity that might occur due to station operation and control locations farther away from the site to indicate the presence of only naturally occurring radioactivity. PTN personnel compare indicator results with control results to assess any impact PTN operation might have had on the surrounding environment.

In 2023, environmental samples were collected for radiological analysis. The results of indicator locations were compared with control locations. It was concluded that no significant relationship exists between PTN operation and effect on the area around the plant. The review of 2023 data showed radioactivity levels in the environment were undetectable in many locations and near background levels in significant pathways.

Radiological environmental monitoring for the Turkey Point Plant is conducted by the State of Florida, Department of Health DOH. The DOH personnel collect and analyze samples, with analysis taking place at the DOH Environmental Radiation Control Laboratory in Orlando, Florida. The 2023 Radiological Surveillance Quarterly Report data is provided by the State of Florida Bureau of Radiation Control and is presented in Attachment 2. The State of Florida is not involved in the (Industry Initiative) ground water monitoring program.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 6 of 55 Annual Radiological Environmental Operating Report 1.2 Reporting Levels No samples equaled or exceeded reporting levels.

1.3 Sample Deviations During 2023, environmental sampling was performed for seven media types addressed in the ODCM and for direct radiation. A total of 802 samples of the 802 scheduled were obtained. Of the scheduled samples, 100 percent were collected and analyzed in accordance with the requirements specified in the ODCM. contains the listing of sample deviations and actions taken.

1.4 Program Modifications Revision 10 of procedure 0-NCAP-103, the Secondary System Groundwater Radiochemistry was approved and issued on 03/27/23. The revision change incorporated the new improved technical specifications into relevant sections of the procedure.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 7 of 55 Annual Radiological Environmental Operating Report

2.0 INTRODUCTION

This report is submitted pursuant to Specification 5.6.1 of Turkey Point Units 3 & 4 Technical Specifications. The Annual Radiological Environmental Operating Report provides information, summaries and analytical results pertaining to the REMP for the calendar year indicated. This report covers surveillance activities described in the Offsite Dose Calculation Manual (ODCM) meeting the requirements of Unit 3 and Unit 4 Technical Specifications.

2.1 Radiological Environmental Monitoring Program The REMP for the Turkey Point Plant is conducted pursuant to Control 5.1 of Turkey Point Unit 3 & 4 ODCM.

A. Purpose The purpose of the REMP is to provide representative measurements of radiation and of radioactive materials in those exposure pathways and for those radionuclides which lead to the highest potential radiation exposures of members of the public resulting from station operation. The REMP also supplements the radiological effluent monitoring program by verifying that the measurable concentrations of radioactive materials and levels of radiation are not higher than expected on the basis of the effluent measurements and the modeling of the environmental exposure pathways.

Sample Locations, Types and Frequencies:

Direct radiation gamma exposure rate is monitored continuously at 23 locations by thermoluminescent dosimeters (TLDs). TLDs are collected and analyzed quarterly.

Airborne radioiodine and particulate samplers are operated continuously at six locations. Samples are collected and analyzed weekly. Analyses include Iodine-131, gross beta, and gamma isotopic measurements.

Surface water samples are collected from three locations. Samples are collected and analyzed monthly. Analyses include gamma isotopic and tritium measurements.

Shoreline sediment samples are collected from three locations coinciding with the locations for surface water samples. Samples are collected and analyzed semi-annually. Sediment samples are analyzed by gamma isotopic measurements.

Fish and invertebrate samples are collected from two locations coinciding with two of the locations for surface water samples. Samples are collected and analyzed semi-annually. Fish and invertebrate samples are analyzed by gamma isotopic measurements.

Broad leaf vegetation samples are collected from three locations. Samples are collected and analyzed monthly. Broad leaf vegetation samples are analyzed by gamma isotopic measurements.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 8 of 55 Annual Radiological Environmental Operating Report Table 1 through 4 provides specific information pertaining to sample locations, types, and frequencies.

Note: Ground Water Protection, NEI Initiative: The program and results are described in Attachment 4.

2.2 Pathways Monitored The airborne, direct radiation, waterborne and ingestion pathways are monitored as required by Control 5.1 of Turkey Point Unit 3 & 4 ODCM. A description of the REMP utilized to monitor the exposure pathways is described in the attached Tables and Figures.

Section 4.0 of this report provides a discussion of 2023 sampling results with Section 5.0 providing a summary of results for the monitored exposure pathways.

2.3 Land Use Census PTN conducts a land use census, as required by Turkey Point Units 3 & 4 ODCM.

The purpose of this census is to identify changes in uses of land within five miles of PTN that would require modifications to the REMP and the Offsite Dose Calculation Manual (ODCM). Section 4.5 on the report contains a narrative on the results of the 2023 land use census.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 9 of 55 Annual Radiological Environmental Operating Report 3.0 RADIOLOGICAL ENVIRONMENTAL SAMPLING PROGRAM REQUIREMENTS Table 1: Exposure Pathway - Airborne Requirement Sample Point Description Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses RADIOIODINE AND PARTICULATES 5 sample indicator locations and 1 sample control location.

T51 (2 mi. NNW) - Entrance Area to Biscayne National Park.

T57 (4 mi. NW) - Siren Pole 27, intersection of SW 112th Ave and SW 304th St.

T58 (1 mi. NW) - Turkey Point Entrance Road.

T72 (<1 mi. WSW) - Just before entrance to Land Utilizations access gate.

T41 (1.6 mi. WNW) - Palm Dr.

West of FPL Satellite School near the site boundary.

T64* (22 mi. NNE) - Natoma Substation, 2475 SW 16 Ct.

Continuous sampler operation with sample collection weekly or more frequently if required by dust loading.

Radioiodine Canisters - I-131 analysis weekly.

Air Particulate - Gross beta radioactivity analysis following filter change.

Air Particulate - Gamma Isotopic analysis quarterly.

Denotes Control sample

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 10 of 55 Annual Radiological Environmental Operating Report Table 2: Exposure Pathway - Direct Radiation Requirement Sample Point Description Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses TLDS 22 indicator sample locations and 1 control sample location.

N-2 (2 mi N) - Convoy Point N-7 (7.1 mi N) - Black Point Marina parking lot on siren pole N-10 (10.6 mi N) - Old Cutler Rd across from Perdue Med. Ctr. On siren pole.

NNW-2 (2.2 mi NNW) - East End of N. Canal Dr. on siren pole E. of 117th Ave.

NNW-10 (9.2 mi NNW) - Bailes Rd.

E. of US 1 on siren pole.

NW-1 (1.4 mi NW) - Turkey Point Entrance Rd.

NW-5 (3.9 mi NW) - Intersection of Mowry Dr. and 117th Ave. on siren pole.

NW-10 (10 mi NW) - On Newtown Rd. N. of Coconut Palm Drive on siren pole.

W-5 (5.3 mi W) - Palm Drive 0.3 mi west of Tallahassee Rd.

WNW-10 (9.8 mi WNW) - NW 2nd Ave. S. of Campbell Dr. at Hmstd.

Middle School on siren pole.

W-1 (0.7 mi W) - On site north side of Discharge Canal.

Quarterly mR exposure quarterly.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 11 of 55 Annual Radiological Environmental Operating Report Table 2: Exposure Pathway - Direct Radiation Requirement Sample Point Description Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses TLDS (Contd) 22 indicator sample locations and 1 control sample location.

W-9 (8.6 mi W) - Card Sound Rd. 0.6 mi SSE of US 1 on siren pole.

WSW-8 (7.8 mi WSW) - Card Sound Rd. 3.4 mi. SSE of US 1 on siren Pole.

SW-1 (1 mi SW) - On site near land utilization offices.

SSE-1 (1 mi SSE) - On site South East side of cooling canals at Turtle Point.

SW-8 (8 mi SW) - Card Sound Rd. 5 mi. SSE of US 1 at entrance to Navy facility.

SSW-5 (5 mi SSW) - On site, southwest corner of cooling canals.

SSW-10 (10 mi SSW) - At Card Sound Bridge on siren pole.

S-5 (5 mi S) - On site, south east end of cooling canals.

S-10 (10 mi S) - Card Sound Road at Steamboat Creek.

SSE-10 (9 mi SSE) - Ocean Reef.

NNE-22* (22.6 mi NNE) - Natoma Substation.

WNW2 (1.6 mi WNW) - Palm Dr.

West of FPL Satellite School, near Site Boundary.

Quarterly mR exposure quarterly.

Denotes Control sample

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 12 of 55 Annual Radiological Environmental Operating Report Table 3: Exposure Pathway - Waterborne Requirement Sample Point Description Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses SURFACE WATER 2 indicator sample locations and 1 control sample location.

T42 (<1 mi. ENE) - Biscayne Bay at Turkey Point.

T81 (6 mi. S) - Card Sound, near Mouth of Old Discharge Canal.

T67* (13-18 mi. N, NNE) - Near Biscayne Bay, Vicinity of Cutler Plant, North to Matheson Hammock Park Grab samples Monthly Gamma isotopic analysis and tritium analysis monthly.

SEDIMENT FROM SHORELINE 2 indicator sample locations and 1 control sample location. Locations coincide with the surface water sample locations.

T42 (<1 mi ENE) - Biscayne Bay at Turkey Point.

T81 (6 mi. S) - Card Sound, near Mouth of Old Discharge Canal.

T67* (13-18 mi. N, NNE) - Near Biscayne Bay, Vicinity of Cutler Plant, North to Matheson Hammock Park Semi-annually Gamma isotopic analysis semi-annually.

Denotes Control sample

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 13 of 55 Annual Radiological Environmental Operating Report

Denotes Control sample

Denotes Control sample Table 4: Exposure Pathway - Ingestion Requirement Sample Point Description Distance and Direction Sampling and Collection Frequency Type and Frequency Of Analyses CRUSTACEA AND FISH 1 indicator sample location and 1 control sample location.

T81 (6 mi. S) - Card Sound, near Mouth of Old Discharge Canal.

T67* (13-18 mi. N, NNE) - Near Biscayne Bay, Vicinity of Cutler Plant, North to Matheson Hammock Park Semi-annually Gamma isotopic analysis semi-annually.

BROADLEAF VEGATATION 2 indicator sample locations and 1 control sample location.

T40 (3 mi W) - South of Palm Dr. on S.W. 117th Street Extension.

T41 (2 mi WNW) - Palm Dr. West of FPL Satellite School near the site boundary.

T67* (13-18 mi. N, NNE) - Near Biscayne Bay, Vicinity of Cutler Plant, North to Matheson Hammock Park Monthly Gamma isotopic analysis monthly.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 14 of 55 Annual Radiological Environmental Operating Report Figure 1: Sample Collection Sites - Near Station

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 15 of 55 Annual Radiological Environmental Operating Report Figure 2: Sample Collection Sites - Distant from Station

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 16 of 55 Annual Radiological Environmental Operating Report 4.0 INTERPRETATION AND TRENDS OF RESULTS 4.1 Air Particulate and Radioiodine Sample Results In 2023 there were no samples above the LLD for I-131. Indicator gross beta air particulate results for 2023 were comparable to results obtained from 2020-2022 of the operational REMP. Results are reported in picocuries per cubic meter (pCi/m3).

Monitoring Period Result 2020 - 2022 (Minimum Value) 0.001 2023 Average Value 0.012 2020 - 2022 (Maximum Value) 0.029 Gross beta activity is attributed to naturally occurring radionuclides. Table 6, which include gross beta concentrations and provide a comparison of the indicator and control means and ranges emphasizes the consistent trends seen in this pathway to support the presence of naturally occurring activity. Figure 3 is a comparison of all the weekly Gross Beta results for 2023.Therefore, it can be concluded that the airborne pathway continues to be unaffected by Turkey Point Nuclear operations.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 17 of 55 Annual Radiological Environmental Operating Report 4.2 Thermoluminescent Dosimetry (TLD) Sample Results Turkey Point Nuclear reports rely on comparison of the indicator locations to the control as a measure of plant impact. Turkey Point Nuclears comparison of the indicator to the control, as seen in Table 6, identified no noticeable trend that would indicate that the ambient radiation levels are being affected by plant operations. In addition, the quarterly indicator averages shown in the TLD radiation dose comparison graph below shows the 2023 indicator results are comparable to control location results. Overall, Turkey Point Nuclear concluded that the ambient radiation levels are not being affected by plant operations.

4.3 Waterborne Sample Results The results for 2023 surface water samples were below the ODCM-required LLD, in one of the indicator samples tritium was noted.

4.3.1 Surface Water Results Samples were collected from two indicator and one control location and analyzed for gamma radionuclides and tritium. Tritium was detected in 1 out of 24 indicator location samples with a concentration of 91 pCi/L which is consistent with results seen in previous operational years. There were no plant related gamma radionuclides detected in any of the control or indicator location samples. Therefore, the operation of Turkey Point Nuclear had no definable impact on this waterborne pathway during 2023.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 18 of 55 Annual Radiological Environmental Operating Report 4.3.2 Shoreline Sediment Sample Results Sediment samples were collected from two indicators and one control location in 2023 and analyzed for gamma radionuclides. Plant related gamma radionuclides were below the LLD limits at both indicator and control locations. Turkey Point Nuclear operations had no significant impact on the environment or public by this waterborne pathway.

4.4 Ingestion Sample Results 4.4.1 Crustacea and Fish Sample Results Crustacea and Fish samples were collected from one indicator and one control location and analyzed for gamma radionuclides. In 2023, plant related gamma radionuclides were below detectable limits which are consistent with the results seen in previous operational years. Therefore, based on these measurements, Turkey Point Nuclear operations had no significant radiological impact upon the environment or public by this ingestion pathway.

4.4.2 Broad Leaf Vegetation Sample Results The REMP had detected radionuclides prior to 1990 in vegetation that are attributable to other sources. These include the radioactive plume release due to reactor core degradation at Chernobyl Nuclear Power Plant in 1986 and atmospheric weapons testing.

In 2023, Broad Leaf Vegetation samples were collected from two indicator and one control locations and analyzed for gamma radionuclides. Cs-137 was detected in samples collected from the indicator and control locations at concentrations consistent with previous years. This activity identified could be attributed to weapons fallout testing 30-40 years ago and the reactor accident at Chernobyl. Therefore, based on these measurements, Turkey Point Nuclear operations had no significant radiological impact upon the environment or public by this ingestion pathway.

4.5 Land Use Census Results The latest land use census (performed in 2023) did not identify any new locations that yielded a calculated dose or dose commitment greater than those currently calculated (see Table 5).

The land use census identified no changes in the new resident census.

There were no changes in the milk (cows/goats) or garden census in 2023.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 19 of 55 Annual Radiological Environmental Operating Report Table 5: Land Use Census -2023 Nearest Residence, Garden, and Milk Animal Within Five Miles SECTOR NEAREST RESIDENCE/BUSINESS NEAREST GARDEN (A)

NEAREST MILK ANIMAL N

1.9 mi @ 349° 1.98 mi @ 349° 2.0 mi @ 354° NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW 1.7 mi @ 302° 3.7 mi @ 302° 4.5 mi @ 303° 6.0 mi @ 295° NW 3.6 mi @ 304° 3.7 mi @ 311° 3.8 mi @ 316° 3.9 mi @ 314° NNW 4.4 mi @ 333° 4.7 mi @ 328° 4.4 mi @ 332° 4.7 mi @ 328° (A) - Only gardens with an estimated total area of 500 square feet, or more, and producing green leafy vegetables are considered.

- No suitable sites were located within a five-mile range.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 20 of 55 Annual Radiological Environmental Operating Report TURKEY POINT RESIDENCE SURVEY RESULTS July-October 2023 Sector Range Bearing Nearest Residence/Business Location N (A) 1.9 miles 349° Homestead Bayfront Park complex. Contact is Jim Wyath. Office hours are 8:30 to 4:30, 7 days a week. Some occasional overnight recreational occupancy (up to 4 nights) on boats at the marina. Approximately 10 workers, 7 days a week, hours and numbers vary. Some summer weekends can see 1000+ visitors.

There is always someone here 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months with more workers in the summer than the rest of the year (February thru September have the highest peak of workers). LaPlaya restaurant is open at the park weekdays from 11 am to 8:30 pm with 8 to 10 employees.

Weekends open till 10 pm and may have up to 15 employees.

N25° 27.683 W80° 20.200.

N (B) 1.98 miles 349° South Glade Outfitters. Located on opposite side of building from office of Homestead Bayfront Park. Manager is Robert and have 2-3 employees. Weekdays 7 am to 5 pm, Fridays till 6 pm.

Weekends: 7 am - 6 pm. Hours may vary depending on weather.

N25° 27.767 W80° 20.206.

N (C) 2.0 miles 354° Biscayne National Park at Convoy Point. Open 7 am to 5:30 pm everyday. There are 65 employees including volunteers and individuals at the institute. The one ranger and two seasonal employees are there all year. There are about 500,000 visitors (more including boaters) per year. Contacts include: Michelle Penick, Chief of Facilities, J. Ernest Jutte, Chief of Administration, 305-242-7721 (office) 202-438-6636 (mobile), and Cindy Holl (administrator) 239-695-1114. N25° 27.817 W80° 20.067.

NNE No residences were located within a five-mile range.

NE No residences were located within a five-mile range.

ENE No residences were located within a five-mile range.

E No residences were located within a five-mile range.

ESE No residences were located within a five-mile range.

SE No residences were located within a five-mile range.

SSE No residences were located within a five-mile range.

S No residences were located within a five-mile range.

SSW No residences were located within a five-mile range.

SW No residences were located within a five-mile range.

WSW No residences were located within a five-mile range.

W No residences were located within a five-mile range.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 21 of 55 Annual Radiological Environmental Operating Report TURKEY POINT RESIDENCE SURVEY RESULTS July-October 2023 (cont.)

Sector Range Bearing Nearest Residence/Business Location WNW (A) 1.7 miles 302° FP&L daycare center and shooting range near the entrance to the Turkey Point Plant. There are 15 employees with ~90 children enrolled, ages 6 months to 5 yrs. Occasionally, they will have school aged children. The center is open from 6am to 6pm Monday thru Friday. The number of people and times at the shooting range varies. N25° 26.817 W80° 21.217.

WNW (B) 3.7 miles 302° 11790 Canal Drive on the south side of Canal Drive (SW 328 St) west of SW 117th Ave (no gardens). Next door, to the east, is a makeshift produce stand which sells coconuts, limes, mandarin oranges, flowers, garlic, mangoes, papaya, avocado, honey, melons, sugar cane, ginger, plantains and pumpkins. Is not associated with the house next door. Two employees may be working there from 8 am to 6 pm. N25° 27.767 W80° 22.867.

NW (A) 3.6 miles 304° The Waste Management Homestead Landfill is located north of Canal Drive (SW 328th St) and east of SW 117th Ave. There are 9 full time employees onsite Monday thru Friday from 7 am to 3:30 pm. N25° 27.833 W80° 22.767.

NW (B) 3.7 miles 311° 11000 SW 320th St. Per property records, this house is on land zoned agriculture and the owners live in Texas. Unable to verify if anyone lives there because the gate is locked and the residence is too far from the road to see anything. N25° 28.217 W80° 22.567.

NW (C) 3.8 miles 316° High Hope Nursery at 11400 SW 316th St. Contact is George Sprinkle, Owner and General Manager. This nursery has approximately 35 employees. Hours of operations are 7am to 5pm Monday thru Friday, with some work on Saturdays until noon. A man lives onsite providing security. N25° 28.441 W80° 22.430.

NW (D) 3.9 miles 314° Snapper Creek Nursery at 11600 SW 316th Street. 14 workers that work Monday thru Friday 7 am to 5 pm. Contact is Elmer.

Security is provided by another person who lives onsite.

N25° 28.444 W80° 22.560.

NNW (A) 4.4 miles 333° 29800 SW 107th Ave. Per property records, this is a small one bedroom residence on land zoned as mixed use agricultural. No information on occupants. N25° 29.450 W80° 21.817.

NNW (B) 4.7 miles 328° Mirtica and Sons Dragon Fruit Farm. Entrance at the end of SW 296th St. Contact is Ernesto Gonzalez Abreu. Owner lives off property in Miami.. N25° 29.564 W80° 22.264.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 22 of 55 Annual Radiological Environmental Operating Report TURKEY POINT GARDEN SURVEY RESULTS July-October 2023 Sector Range Bearing Nearest Garden Location (with estimated total area of 500 square feet, or more, and producing green leafy vegetables).

N No suitable gardens were located within a five-mile range.

NNE No suitable gardens were located within a five-mile range.

NE No suitable gardens were located within a five-mile range.

ENE No suitable gardens were located within a five-mile range.

E No suitable gardens were located within a five-mile range.

ESE No suitable gardens were located within a five-mile range.

SE No suitable gardens were located within a five-mile range.

SSE No suitable gardens were located within a five-mile range.

S No suitable gardens were located within a five-mile range.

SSW No suitable gardens were located within a five-mile range.

SW No suitable gardens were located within a five-mile range.

WSW No suitable gardens were located within a five-mile range.

W No suitable gardens were located within a five-mile range.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 23 of 55 Annual Radiological Environmental Operating Report TURKEY POINT GARDEN SURVEY RESULTS July-October 2023 (cont.)

Sector Range Bearing Nearest Garden Location (with estimated total area of 500 square feet, or more, and producing green leafy vegetables).

WNW (A) 4.5 miles 303° Thai Farm. South of Mowry Drive (SW 320th St) and about 0.6 miles west of Allapattah Rd (SW 117th Ave). Growing guava, dragon fruit, papaya, palm, bamboo, and more. No one present.

N25° 28.217 W80° 23.467.

WNW (B) 6.0 miles 295° Farm Share, Inc at 14125 SW 320th St, where farmers donate locally grown produce to be given to charitable organizations.

Produce donations usually start in November and run through April. About 20 workers present from 8 am to 4:30 pm Monday thru Friday. The produce donated is usually tomatoes, bananas, squash, green beans, okra, corn, potatoes, watermelon and zucchini. The contact is Nick Sanchez or Aaron Garcia, Facility Manager, 305-246-3276 (office), 305-926-9832 (cell).

N25° 28.255 W80° 25.111.

NW No suitable gardens were located within a five-mile range.

NNW (A) 4.4 miles 332° Under the Vine. 11100 SW 296th St. Entrance at SW 107th Ave &

SW 296th St just east of SFM Tree Farm/Mirtica Farm. Growing only dragon fruit. Open Mon-Sat 8:00-5:00. 3 employees plus the owner, Cindy, work here. Sometimes they hire extra help. The owners brother, Pepper, sometimes spends the weekends onsite.

N25° 29.464 W80° 21.828.

NNW (B) 4.7 miles 328° Mirtica and Sons Dragon Fruit Farm. Entrance at the end of SW 296th St. Noticed bananas, dragon fruit, plantain tress, coconuts and mangoes growing in various areas on the farm. Also noticed beehives. Owner lives off property in Miami. N25° 29.564 W80° 22.264.

Note: At the time of our survey, many fields in the area surveyed were bare soil or cover crops. Other than the sites already described above, the only non-ornamental crops known to have been grown in the survey area were: bananas, beans, corn, guava, malanga, papaya, eggplant, sorghum, squash, sugar cane, tambis, okra, and melon.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 24 of 55 Annual Radiological Environmental Operating Report TURKEY POINT MILK ANIMAL SURVEY RESULTS July-October 2023 Sector Nearest Milk Animals (cows or goats).

N No potential milk animals were located within five miles.

NNE No potential milk animals were located within five miles.

NE No potential milk animals were located within five miles.

ENE No potential milk animals were located within five miles.

E No potential milk animals were located within five miles.

ESE No potential milk animals were located within five miles.

SE No potential milk animals were located within five miles.

SSE No potential milk animals were located within five miles.

S No potential milk animals were located within five miles.

SSW No potential milk animals were located within five miles.

SW No potential milk animals were located within five miles.

WSW No potential milk animals were located within five miles.

W No potential milk animals were located within five miles.

WNW No potential milk animals were located within five miles.

NW No potential milk animals were located within five miles.

NNW No potential milk animals were located within five miles.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 25 of 55 Annual Radiological Environmental Operating Report 4.6 Interlaboratory Comparison Results contains result summary for Interlaboratory Comparison Program for the Department of Energy Mixed Analyte Performance Evaluation Program (MAPEP).

These satisfied the requirement of Control 5.3 of the ODCM for the Interlaboratory Comparison Program.

5.0 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

1.

Table 6, Radiological Environmental Monitoring Program Summary, summarizes data for the 2023 REMP program.

Sample Type (Units)

Type / Number of Analyses(1)

LLD (2)

Indicator Locations Mean (F)(3)

[Range]

Location(4) [Highest Annual Mean]

Mean (F)(3)

[Range]

Control Locations Mean (F)(3) [Range]

Number of Non Routine Results(5)

GB / 312 0.01 0.0122 (260 / 260)

T64 0.0134 (52 / 52) 0.0134 (52 / 52) 0

[0.001 - 0.025]

(22 mi. NNE)

[0.006 - 0.024]

GS / 24 0.1015 (20 / 20)

T58 0.1175 (4 / 4) 0.1168 (4 / 4) 0 Be-7

[0.059 - 0.146]

(1 mi. NW)

[0.106 - 0.146]

[0.106 - 0.135]

K-40

< LLD N/A N/A

< LLD 0

Cs-134 0.05

< LLD N/A N/A

< LLD 0

Cs-137 0.06

< LLD N/A N/A

< LLD 0

Pb-210 0.0098 (4 / 20)

T41 0.0105 (2 / 4) 0.0086 (1 / 4) 0

[0.009 - 0.012]

(1.6 mi. WNW)

(0.009 - 0.012]

[<LLD - 0.009]

Airborne Iodine (pCi/m3)

I-131 / 312 0.07

< LLD N/A N/A

< LLD 0

Gamma / 88 (6) 3.8 (88 / 88)

WNW-10 4.3 (4 / 4)

N/A 0

[2.6 - 4.9]

(9.8 mi. WNW)

[3.9 - 4.8]

Gamma / 4 N/A NNE-22 3.3 (4 / 4) 3.3 (4 / 4) 0 (22.6 mi. NNE)

[3.0 - 3.7]

LEGEND:

(1) - GB = Gross beta; I-131 = Iodine-131; H-3 = Tritium; GS = Gamma scan.

(2) - LLD = Required lower limit of detection based on Turkey Point ODCM.

(3) - Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parenthesis (F).

(4) - Locations are specified (1) by name and (2) direction relative to reactor site.

(5) - Non-routine results are those which exceed ten times the control station value. If no control station value is available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.

(6) - LLD is not defined in Turkey Point ODCM.

Table6: Radiological Environmental Monitoring Program Summary Annual Radiological Environmental Operating Report Air Particulate (pCi/m3)

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 26 of 55 Direct Radiation Indicator TLD

(µR/hour)

Direct Radiation Control TLD

(µR/hour)

(6)

Sample Type (Units)

Type / Number of Analyses(1)

LLD (2)

Indicator Locations Mean (F)(3)

[Range]

Location(4) [Highest Annual Mean]

Mean (F)(3)

[Range]

Control Locations Mean (F)(3) [Range]

Number of Non Routine Results(5)

H-3 / 36 3,000 91 (1 / 24)

T81 91 (1 / 12)

< LLD 0

[<LLD - 91]

(6 mi. S)

[<LLD - 91]

GS / 36 K-40 291 (24 / 24)

T81 302 (12 / 12) 215 (12 / 12) 0

[172 - 420]

(6 mi. S)

[232 - 416]

[153 - 287]

GS / 6 Be-7 46 (1 / 4)

T67 86 (1 / 2) 86 (1 / 2) 0

[<LLD - 46]

(13-18 mi. N, NNE)

[<LLD - 86]

K-40 98 (1 / 4)

T67 155 (2 / 2) 155 (2 / 2) 0

[<LLD - 98]

(13-18 mi. N, NNE)

[146 - 163]

Co-60

< LLD N/A N/A

< LLD 0

Cs-137 180

< LLD N/A N/A

< LLD 0

Pb-210

< LLD N/A N/A

< LLD 0

Ra-226 378 (4 / 4)

T81 453 (2 / 2) 144 (2 / 2) 0

[268 - 498]

(6 mi. S)

[407 - 498]

[134 - 153]

Th-232

<LLD N/A N/A

< LLD 0

U-235

<LLD N/A N/A

< LLD 0

U-238

<LLD N/A N/A

< LLD 0

LEGEND:

(1) - GB = Gross beta; I-131 = Iodine-131; H-3 = Tritium; GS = Gamma scan.

(2) - LLD = Required lower limit of detection based on Turkey Point ODCM.

(3) - Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parenthesis (F).

(4) - Locations are specified (1) by name and (2) direction relative to reactor site.

(5) - Non-routine results are those which exceed ten times the control station value. If no control station value is available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.

(6) - LLD is not defined in Turkey Point ODCM.

Sediment (pCi/kg dry)

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 27 of 55 Annual Radiological Environmental Operating Report Table6: Radiological Environmental Monitoring Program Summary Surface Water (pCi/L)

Sample Type (Units)

Type / Number of Analyses(1)

LLD (2)

Indicator Locations Mean (F)(3)

[Range]

Location(4) [Highest Annual Mean]

Mean (F)(3)

[Range]

Control Locations Mean (F)(3) [Range]

Number of Non Routine Results(5)

GS / 4 1855 (2 / 2)

T67 1965 (2 / 2) 1965 (2 / 2)

K-40

[1130 - 2580]

(13-18 mi. N, NNE)

[1170 - 2760]

0 Ra-226 169 (1 / 2)

T81 169 (1 / 2)

<LLD 0

[<LLD - 169]

(6 mi. S)

[<LLD - 169]

Ra-228

< LLD N/A N/A

< LLD 0

GS / 4 K-40 3035 (2 / 2)

T81 3035 (2 / 2) 2885 (2 / 2) 0

[2580 - 3490]

(6 mi. S)

[2580 - 3490]

[2760 - 3010]

Ra-226

< LLD N/A N/A

< LLD 0

Ra-228

< LLD N/A N/A

< LLD 0

GS / 36 Be-7 1910 (24 / 24)

T40 2188 (12 / 12) 1354 (12 / 12) 0

[545 - 3320]

(3 mi. W)

[724 - 3320]

[663 - 3140]

K-40 4893 (24 / 24)

T67 6003 (12 / 12) 6003 (12 / 12) 0

[1830 - 7580]

(13-18 mi. N, NNE)

[1960 - 8380]

Cs-137 80 59 (15 / 24)

T40 74 (10 / 12) 24 (2 / 12) 0

[12 - 109]

(3 mi. W)

[12 - 109]

[23 - 25]

Pb-210 900 (4 / 24)

T41 1590 (1 / 12) 71 (1 / 12) 0

[146 - 1590]

(2 mi. WNW)

[<LLD - 1590]

[<LLD - 71]

Pb-212 153 (2 /24)

T40 153 (2 /12)

<LLD 0

[150 - 155]

(3 mi. W)

[150 - 155]

Ra-226

< LLD N/A N/A

< LLD 0

LEGEND:

(1) - GB = Gross beta; I-131 = Iodine-131; H-3 = Tritium; GS = Gamma scan.

(2) - LLD = Required lower limit of detection based on Turkey Point ODCM.

(3) - Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parenthesis (F).

(4) - Locations are specified (1) by name and (2) direction relative to reactor site.

(5) - Non-routine results are those which exceed ten times the control station value. If no control station value is available, the result is considered non-routine if it exceeds ten times the preoperational value for the location.

(6) - LLD is not defined in Turkey Point ODCM.

Crustacea (pCi/kg wet)

Broad Leaf (pCi/kg wet)

Fish (pCi/kg wet)

Table6: Radiological Environmental Monitoring Program Summary Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 28 of 55 Annual Radiological Environmental Operating Report

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 29 of 55 Annual Radiological Environmental Operating Report Page 1 of 1 Sample Deviations Table 7: Sample Deviations Table Comment No.

Sample Media Affected Sample Location Date Problem Evaluation / Actions 1

Soil MAPEP-23MaS49 2023 False Positive results for Mn-54 The Bureau of Radiation Control (BRC) under the State of Florida, identified a discrepancy in the reported results for MAPEP-23-MaS49 sample (see ), for the radiological and inorganic combined soil standard Mn-54.

The reported value of 1.85 Bq/Kg (50 pCi/Kg) was below the Minimum Detectable Activity (MDA) of 2.15 Bq/Kg (58.05 pCi/Kg), but it was not acceptable due to the possibly that the background subtraction method was not applied during the analysis. This issue was evaluated by the Florida lab participating in their QC program and was determined by the Florida lab not to have an impact on the results provided in this REMP report. The BRC Program Compliance officer initiated a corrective measure by requesting a blank soil sample from the next series, MAPEP-24-MaS50. A proper background subtraction technique will be used to ensure accuracy during the additional test and a report will be issued upon completion. AR# 02482781 2

Air Sample T57 03/06/23 03/20/23 Pump Failure The air sample pump was not operational upon discovery during routine weekly sampling. Due to limited air flow through the iodine cartridge, the sample pump was replaced 3 times over the course of three weeks from 03/06/23 thru 03/20/23.

Estimated sampling duration was: 1) Week 1 - 4.8 hrs. out of 144 hrs.,2) Week 2 -

42.3 hrs. out of 173 hours0.002 days 0.0481 hours 2.86045e-4 weeks 6.58265e-5 months , and 3) Week 3 - 48.8 hrs. out of 162 hrs.

AR# 02440703 3

Broad Leaf Vegetation T40 1st, 3rd, and 4th Qtr.

Broad Leaf Vegetation Cs-137 Result above LLD The presence of Cs-137 (Cesium-137) was observed in the required REMP sample T40, the broadleaf vegetation. During the first, third, and fourth quarter of State of Florida 2023 quarterly reports the sample results were 90 pCi/kg, 109 pCi/kg, and 100 pCi/kg (1st quarter), 83 pCi/kg (3rd quarter), 81 pCi/kg, and 97 pCi/kg (4th quarter). Although these values do not meet the ODCM reporting criteria thresholds, they are being documented as identified. The ODCM Lower Limit of Detection (LLD) for Cs-137 is 80 pCi/kg, and the reporting level requirement is 2000 pCi/kg. AR# 02484345

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 30 of 55 Annual Radiological Environmental Operating Report Table 7: Sample Deviations Table Comment No.

Sample Media Affected Sample Location Date Problem Evaluation / Actions 4

Milk T99 2023 Sample Unavailable T99, the supplemental goat milk sample, was unavailable for 2023 because the farm had no milking goats. AR# 02482782

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 31 of 55 Annual Radiological Environmental Operating Report ATTACHMENT 2 Monitoring Results Tables RADIOLOGICAL SURVEILLANCE OF FLORIDA POWER AND LIGHT COMPANY'S TURKEY POINT SITE 2023 First Quarter, 2023 Second Quarter, 2023 Third Quarter, 2023 Fourth Quarter, 2023

End Date LLD 01/02/2023 0.009 0.011 0.007 0.006 0.007 0.009 01/09/2023 0.012 0.012 0.009 0.012 0.010 0.012 01/16/2023 0.023 0.022 0.019 0.019 0.019 0.021 01/23/2023 0.012 0.009 0.013 0.012 0.013 0.012 01/30/2023 0.013 0.014 0.019 0.015 0.010 0.012 02/07/2023 0.011 0.009 0.007 0.012 0.008 0.010 02/15/2023 0.010 0.009 0.002 0.010 0.014 0.011 02/21/2023 0.011 0.008 0.014 0.011 0.010 0.016 02/28/2023 0.012 0.011 0.019 0.015 0.015 0.011 03/06/2023 0.013 0.014 (2) 0.022 0.013 0.014 0.015 03/13/2023 0.013 0.022 (2) 0.006 0.018 0.014 0.019 03/20/2023 0.016 0.018 (2) 0.014 0.014 0.020 0.016 03/27/2023 0.007 0.008 0.011 0.011 0.011 0.010 04/03/2023 0.010 0.010 0.017 0.013 0.014 0.010 04/10/2023 0.007 0.011 0.007 0.009 0.008 0.010 04/18/2023 0.006 0.010 0.006 0.007 0.008 0.006 04/25/2023 0.015 0.015 0.015 0.020 0.019 0.005 05/02/2023 0.011 0.016 0.013 0.014 0.012 0.014 05/09/2023 0.022 0.019 0.014 0.017 0.024 0.015 05/15/2023 0.016 0.014 0.016 0.015 0.019 0.017 05/23/2023 0.013 0.010 0.006 0.009 0.011 0.010 05/30/2023 0.010 0.010 0.009 0.015 0.007 0.007 06/05/2023 0.011 0.009 0.010 0.011 0.011 0.007 06/12/2023 0.008 0.014 0.012 0.012 0.016 0.011 06/20/2023 0.010 0.010 0.013 0.012 0.012 0.012 06/27/2023 0.008 0.016 0.012 0.012 0.012 0.011 07/06/2023 0.009 0.010 0.009 0.014 0.009 0.012 07/14/2023 0.013 0.015 0.016 0.018 0.019 0.012 07/20/2023 0.018 0.013 0.016 0.017 0.015 0.017 07/26/2023 0.025 0.013 0.017 0.017 0.021 0.009 08/02/2023 0.008 0.008 0.007 0.008 0.008 0.007 08/08/2023 0.012 0.010 0.011 0.017 0.015 0.014 08/14/2023 0.014 0.012 0.012 0.018 0.017 0.020 08/21/2023 0.010 0.011 0.009 0.013 0.007 0.011 08/29/2023 0.010 0.013 0.010 0.015 0.014 0.012 09/05/2023 0.007 0.012 0.017 0.013 0.006 0.011 09/12/2023 0.008 0.011 0.013 0.013 0.012 0.009 09/19/2023 0.009 0.012 0.008 0.014 0.011 0.009 09/26/2023 0.011 0.006 0.006 0.006 0.011 0.011 10/02/2023 0.005 0.006 0.002 0.005 0.006 0.007 10/09/2023 0.004 0.001 0.008 0.012 0.009 0.011 10/16/2023 0.013 0.012 0.013 0.013 0.016 0.011 10/23/2023 0.016 0.017 0.015 0.017 0.022 0.019 11/01/2023 0.017 0.021 0.019 0.019 0.024 0.019 11/07/2023 0.017 0.020 0.018 0.013 0.017 0.025 11/13/2023 0.001 0.006 0.006 0.007 0.009 0.008 11/20/2023 0.007 0.004 0.006 0.006 0.009 0.007 11/28/2023 0.015 0.012 0.009 0.017 0.017 0.013 12/05/2023 0.016 0.017 0.014 0.017 0.023 0.018 12/11/2023 0.019 0.014 0.012 0.017 0.018 0.017 12/19/2023 0.013 0.011 0.009 0.009 0.009 0.009 12/27/2023 0.011 0.010 0.012 0.014 0.015 0.017 (1) Station with highest annual mean.

(2) See Attachment 1, Table 7, Samples Deviations Table, Comment 2 Analysis: Gross Beta Monitoring Results Tables Table8: Air Particulate - Gross Beta Page 1 of 16 T41 (Indicator) 0.01 T51 (Indicator)

T57 (Indicator) 0.01 0.01 T58 (Indicator) 2023 Page 32 of 55 Units: pCi/m3 0.01 T64(1)

(Control) 0.01 T72 (Indicator) 0.01 Annual Radiological Environmental Operating Report Plant: Turkey Point Nuclear Units 3 & 4

Location Collection Date Be-7 T41 (Indicator) 03/27/2023 0.1330

< 0.0133

< 0.0011

< 0.0008 0.0086 T51 (Indicator) 03/27/2023 0.1150

< 0.0147

< 0.0009

< 0.0008

< 0.0330 T57 (Indicator) 03/27/2023 0.1270

< 0.0146

< 0.0011

< 0.0010

< 0.0145 T58 (Indicator) 03/27/2023 0.1460

< 0.0133

< 0.0010

< 0.0010 0.0093 T64 (Control) 03/27/2023 0.1350

< 0.0143

< 0.0010

< 0.0008

< 0.0143 T72 (Indicator) 03/27/2023 0.1300

< 0.0163

< 0.0010

< 0.0008

< 0.0327 T41 (Indicator) 06/27/2023 0.0594

< 0.0187

< 0.0009

< 0.0008 0.0124 T51 (Indicator) 06/27/2023 0.0607

< 0.0115

< 0.0009

< 0.0008

< 0.0320 T57 (Indicator) 06/27/2023 0.0960

< 0.0204

< 0.0010

< 0.0009 0.0088 T58 (Indicator) 06/27/2023 0.1060

< 0.0151

< 0.0007

< 0.0008

< 0.0317 T64 (Control) 06/27/2023 0.1190

< 0.0234

< 0.0009

< 0.0009 0.0086 T72 (Indicator) 06/27/2023 0.0652

< 0.0145

< 0.0006

< 0.0007

< 0.0302 T41 (Indicator) 09/26/2023 0.0951

< 0.0157

< 0.0080

< 0.0100

< 0.0080 T51 (Indicator) 09/26/2023 0.1070

< 0.0174

< 0.0090

< 0.0120

< 0.0090 T57 (Indicator) 09/26/2023 0.0877

< 0.0152

< 0.0090

< 0.0110

< 0.0070 T58 (Indicator) 09/26/2023 0.1060

< 0.0182

< 0.0090

< 0.0120

< 0.0100 T64 (Control) 09/26/2023 0.1070

< 0.0138

< 0.0060

< 0.0070

< 0.0070 T72 (Indicator) 09/26/2023 0.0909

< 0.0193

< 0.0110

< 0.0130

< 0.0100 T41 (Indicator) 12/27/2023 0.1020

< 0.0152

< 0.0014

< 0.0017

< 0.0015 T51 (Indicator) 12/27/2023 0.0869

< 0.0139

< 0.0009

< 0.0012

< 0.0009 T57 (Indicator) 12/27/2023 0.0983

< 0.0261

< 0.0000

< 0.0018 T58 (Indicator) 12/27/2023 0.1120

< 0.0148

< 0.0011

< 0.0014

< 0.0010 T64 (Control) 12/27/2023 0.1060

< 0.0231

< 0.0016

< 0.0020

< 0.0017 T72 (Indicator) 12/27/2023 0.1050

< 0.0164

< 0.0007

< 0.0009

< 0.0007 Plant: Turkey Point Nuclear Units 3 & 4 Cs-137 0.06 Pb-210 Year: 2023 Page 33 of 55 Annual Radiological Environmental Operating Report REQUIRED LLD Table9: Air Particulate Composite - Gamma Monitoring Results Tables Units: pCi/m3 Page 2 of 16 K-40 Analysis: Gamma Isotopic Cs-134 0.05

End Date LLD 01/02/2023

< 0.030

< 0.040 01/09/2023

< 0.030

< 0.030 01/16/2023

< 0.020

< 0.030

< 0.020

< 0.020 01/23/2023

< 0.020

< 0.020 01/30/2023

< 0.020

< 0.010

< 0.020

< 0.020 02/07/2023

< 0.020

< 0.020 02/15/2023

< 0.020

< 0.010

< 0.020

< 0.020 02/21/2023

< 0.020

< 0.030

< 0.020

< 0.020 02/28/2023

< 0.020

< 0.050

< 0.020

< 0.020 03/06/2023

< 0.020

< 0.020 (1)< 0.100

< 0.020

< 0.020 03/13/2023

< 0.020

< 0.020 (1)< 0.080

< 0.020

< 0.020 03/20/2023

< 0.020

< 0.020 (1)< 0.080

< 0.020

< 0.020 03/27/2023

< 0.020

< 0.020 04/03/2023

< 0.040

< 0.040 04/10/2023

< 0.020

< 0.020 04/18/2023

< 0.020

< 0.020 04/25/2023

< 0.020

< 0.020 05/02/2023

< 0.020

< 0.020 05/09/2023

< 0.020

< 0.020 05/15/2023

< 0.020

< 0.030

< 0.020 05/23/2023

< 0.020

< 0.020 05/30/2023

< 0.020

< 0.020 06/05/2023

< 0.020

< 0.020 06/12/2023

< 0.020

< 0.020 06/20/2023

< 0.020

< 0.020 06/27/2023

< 0.020

< 0.020 07/06/2023

< 0.020

< 0.010

< 0.020

< 0.020 07/14/2023

< 0.010

< 0.020

< 0.010

< 0.020

< 0.010 07/20/2023

< 0.020

< 0.020 07/26/2023

< 0.020

< 0.020 08/02/2023

< 0.020

< 0.020 08/08/2023

< 0.010

< 0.020

< 0.010

< 0.010 08/14/2023

< 0.020

< 0.030

< 0.020 08/21/2023

< 0.020

< 0.020 08/29/2023

< 0.020

< 0.020 09/05/2023

< 0.010

< 0.010 09/12/2023

< 0.020

< 0.020 09/19/2023

< 0.030

< 0.030 09/26/2023

< 0.030

< 0.040

< 0.030 10/02/2023

< 0.020

< 0.020 10/09/2023

< 0.020

< 0.020 10/16/2023

< 0.020

< 0.020 10/23/2023

< 0.070

< 0.070 11/01/2023

< 0.010

< 0.010 11/07/2023

< 0.020

< 0.020 11/13/2023

< 0.020

< 0.020 11/20/2023

< 0.020

< 0.020 11/28/2023

< 0.020

< 0.010

< 0.020

< 0.020 12/05/2023

< 0.010

< 0.010 12/11/2023

< 0.010

< 0.020

< 0.010

< 0.010 12/19/2023

< 0.010

< 0.010 12/27/2023

< 0.020

< 0.020 (1) See Attachment 1, Table 7, Samples Deviations Table, Comment 2 Analysis: Iodine-131 Plant: Turkey Point Nuclear Units 3 & 4 Annual Radiological Environmental Operating Report Page 3 of 16 Monitoring Results Tables Table10: Air Cartridges - Iodine-131 Year: 2023 Page 34 of 55 Units: pCi/m3 T41 (Indicator) 0.07 T51 (Indicator) 0.07 T57 (Indicator) 0.07 T58 (Indicator) 0.07 T64 (Control) 0.07 T72 (Indicator) 0.07

Page 35 of 55 Station 1st Qtr 2023 2nd Qtr 2023 3rd Qtr 2023 4th Qtr 2023 Annual Mean 2023 N-2 3.8 4.3 3.8 4.1 4.0 N-7 3.1 3.6 4.3 4.8 3.9 N-10 3.4 4.0 3.6 3.7 3.7 NNW-2 3.3 3.8 4.0 4.1 3.8 NNW-10 3.5 3.9 3.8 3.8 3.7 NW-1 3.8 4.1 3.9 3.7 3.9 NW-5 3.2 4.2 4.1 4.1 3.9 NW-10 4.1 3.6 4.2 4.3 4.1 WNW-2 3.3 4.4 3.6 3.8 3.8 WNW-10(1) 3.9 4.8 4.4 4.0 4.3 W-1 3.7 3.8 4.8 4.6 4.2 W-5 3.3 3.8 3.8 4.9 4.0 W-9 3.0 4.0 3.8 4.0 3.7 WSW-8 3.3 4.5 4.0 3.8 3.9 SW-1 3.5 4.2 4.5 4.1 4.1 SW-8 2.6 3.9 4.2 4.5 3.8 SSW-5 2.8 3.9 3.9 4.3 3.7 SSW-10 3.0 3.6 3.9 3.8 3.6 S-5 2.7 4.0 3.6 4.2 3.6 S-10 3.2 4.0 4.0 3.6 3.7 SSE-1 2.7 3.0 4.0 3.4 3.3 SSE-10 2.9 3.0 3.0 3.9 3.2 (1) Indicator station with highest annual mean.

Station 1st Qtr 2023 2nd Qtr 2023 3rd Qtr 2023 4th Qtr 2023 Annual Mean 2023 NNE-22 3.7 3.4 3.0 3.1

3.3 Table12

Direct Radiation - Control Analysis: Gamma Dose Units: µR/hr Table11: Direct Radiation-Indicators Analysis: Gamma Dose Units: µR/hr Year: 2023 Annual Radiological Environmental Operating Report Monitoring Results Tables Plant: Turkey Point Nuclear Units 3 & 4 Page 4 of 16

Location End Date K-40 Location End Date K-40 Location End Date K-40 T42 (Indicator) 01/17/2023

< 137 205 T67 (Control) 01/17/2023

< 137 287 T81 (Indicator) 01/17/2023

< 137 266 T42 (Indicator) 02/13/2023

< 138 272 T67 (Control) 02/13/2023

< 138 153 T81 (Indicator) 02/13/2023

< 140 320 T42 (Indicator) 03/07/2023

< 135 364 T67 (Control) 03/06/2023

< 135 246 T81 (Indicator) 03/06/2023

< 135 264 T42 (Indicator) 04/03/2023

< 151 403 T67 (Control) 04/03/2023

< 151 237 T81 (Indicator) 04/03/2023

< 148 302 T42 (Indicator) 05/01/2023

< 136 312 T67 (Control) 05/01/2023

< 136 280 T81 (Indicator) 05/01/2023 91 364 T42 (Indicator) 06/05/2023

< 150 229 T67 (Control) 06/05/2023

< 150 217 T81 (Indicator) 06/05/2023

< 150 416 T42 (Indicator) 07/21/2023

< 141 420 T67 (Control) 07/21/2023

< 141 195 T81 (Indicator) 07/21/2023

< 141 321 T42 (Indicator) 08/15/2023

< 139 320 T67 (Control) 08/15/2023

< 139 250 T81 (Indicator) 08/15/2023

< 139 252 T42 (Indicator) 09/06/2023

< 138 221 T67 (Control) 09/06/2023

< 138 184 T81 (Indicator) 09/06/2023

< 138 311 T42 (Indicator) 10/10/2023

< 142 238 T67 (Control) 10/09/2023

< 139 157 T81 (Indicator) 10/10/2023

< 142 323 T42 (Indicator) 11/02/2023

< 137 198 T67 (Control) 11/01/2023

< 137 187 T81 (Indicator) 11/02/2023

< 137 255 T42 (Indicator) 12/06/2023

< 137 172 T67 (Control) 12/05/2023

< 134 184 T81 (Indicator) 12/06/2023

< 137 232 H-3 3,000 Units: pCi/L REQUIRED LLD REQUIRED LLD REQUIRED LLD Analysis: Gamma Isotopic H-3 3,000 H-3 3,000 Table13: Surface Water - Tritium and Gamma Page 5 of 16 Year: 2023 Plant: Turkey Point Nuclear Units 3 & 4 Annual Radiological Environmental Operating Report Monitoring Results Tables Page 36 of 55

Location Collection Date T42 (Indicator) 01/18/2023 46 98

< 8

< 365 268

< 36

< 16

< 148 T67 (Control) 01/18/2023

< 84 146

< 6

< 8

< 244 153

< 32

< 16

< 139 T81 (Indicator) 01/18/2023

< 133

< 179

< 13

< 11

< 1050 407

< 53

< 27

< 276 T42 (Indicator) 08/15/2023

< 134

< 128

< 9

< 10

< 1180 339

< 48

< 45

< 8 T67 (Control) 08/15/2023 86 163

< 9

< 8

< 427 134

< 38

< 21

< 4 T81 (Indicator) 08/15/2023

< 226

< 160

< 14

< 13

< 1650 498

< 71

< 79

< 11 Be-7 K-40 Cs-137 Co-60 Table14: Shoreline Sediment - Gamma Analysis: Gamma Isotopic Annual Radiological Environmental Operating Report Monitoring Results Tables Page 6 of 16 Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 37 of 55 Units: pCi/kg (dry) 180 U-235 U-238 Pb-210 Ra-226 Th-232 REQUIRED LLD

Location Collection Date Sample Type K-40 T67 (Control) 01/19/2023 Blue Crabs 1170

< 269

< 47 T81 (Indicator) 01/19/2023 Blue Crabs 1130 169

< 44 T67 (Control) 08/15/2023 Blue Crabs 2760

< 624

< 111 T81 (Indicator) 08/15/2023 Blue Crabs 2580

< 517

< 93 Table15: Crustacea - Gamma Units: pCi/kg (wet)

Ra-226 Ra-228 REQUIRED LLD Analysis: Gamma Isotopic Monitoring Results Tables Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 38 of 55 Annual Radiological Environmental Operating Report Page 7 of 16

Location Collection Date Sample Type K-40 T67 (Control) 01/12/2023 Mixed Species 3010

< 408

< 72 T81 (Indicator) 01/19/2023 Mixed Species 3490

< 371

< 83 T67 (Control) 08/15/2023 Mixed Species 2760

< 624

< 111 T81 (Indicator) 08/15/2023 Mixed Species 2580

< 517

< 93 Monitoring Results Tables Table16: Fish - Gamma Analysis: Gamma Isotopic REQUIRED LLD Units: pCi/kg (wet)

Ra-226 Ra-228 Plant: Turkey Point Nuclear Units 3 & 4 Page 39 of 55 Annual Radiological Environmental Operating Report Year: 2023 Page 8 of 16

Location Collection Date Sample Type Be-7 K-40 T40 (Indicator) 01/17/2023 Brazilian Pepper 2150 4740 (1) 90 712

< 25

< 280 T40 (Indicator) 02/13/2023 Brazilian Pepper 2470 5670 (1) 109 1150

< 39

< 539 T40 (Indicator) 03/06/2023 Brazilian Pepper 2140 4770 (1) 100 146

< 23

< 294 T40 (Indicator) 04/03/2023 Brazilian Pepper 724 6400 12

< 728

< 29

< 305 T40 (Indicator) 05/01/2023 Brazilian Pepper 818 7580

< 16

< 108

< 28

< 318 T40 (Indicator) 06/05/2023 Brazilian Pepper 2150 6600 21

< 1220

< 40

< 487 T40 (Indicator) 07/21/2023 Brazilian Pepper 3130 5700 (1) 83

< 18

< 1060

< 38 T40 (Indicator) 08/15/2023 Brazilian Pepper 3290 4050 78

< 9 150

< 22 T40 (Indicator) 09/06/2023 Brazilian Pepper 3320 4770 73

< 10 155

< 26 T40 (Indicator) 10/10/2023 Brazilian Pepper 1880 4050 (1) 81

< 795

< 29

< 308 T40 (Indicator) 11/02/2023 Brazilian Pepper 2330 3840 (1) 97

< 851

< 27

< 329 T40 (Indicator) 12/06/2023 Brazilian Pepper 1850 6040

< 25

< 1230

< 37

< 510 T41(Indicator) 01/17/2023 Brazilian Pepper 545 1830

< 6

< 252

< 9

< 106 T41(Indicator) 02/13/2023 Brazilian Pepper 1680 4020

< 15

< 690

< 24

< 283 T41(Indicator) 03/06/2023 Brazilian Pepper 1170 4090

< 22

< 1010

< 33

< 417 T41(Indicator) 04/03/2023 Brazilian Pepper 1640 4890

< 19

< 1220

< 38

< 525 T41(Indicator) 05/01/2023 Brazilian Pepper 1990 5530

< 21 1590

< 47

< 568 T41(Indicator) 06/05/2023 Brazilian Pepper 1800 4370 17

< 896

< 32

< 363 T41(Indicator) 07/21/2023 Brazilian Pepper 2070 4270 26

< 18

< 1030

< 32 T41(Indicator) 08/15/2023 Brazilian Pepper 2780 6230

< 19

< 138

< 33 T41(Indicator) 09/06/2023 Brazilian Pepper 1320 5050 27

< 15

< 877

< 34 T41(Indicator) 10/10/2023 Brazilian Pepper 1580 5240

< 12

< 57

< 22

< 245 T41(Indicator) 11/02/2023 Brazilian Pepper 894 2430 19

< 902

< 30

< 344 T41(Indicator) 12/06/2023 Brazilian Pepper 2130 5260 55

< 1430

< 34

< 447 T67 (Control) 01/17/2023 Brazilian Pepper 1200 6840

< 14

< 109

< 25

< 290 T67 (Control) 02/13/2023 Brazilian Pepper 980 6180

< 19

< 967

< 32

< 450 T67 (Control) 03/06/2023 Brazilian Pepper 819 6100

< 11

< 87

< 20

< 229 T67 (Control) 04/03/2023 Brazilian Pepper 633 8380

< 13

< 112

< 26

< 310 T67 (Control) 05/02/2023 Brazilian Pepper 1020 8060

< 20

< 1260

< 42

< 525 T67 (Control) 06/05/2023 Brazilian Pepper 894 7670

< 14

< 102

< 25

< 284 T67 (Control) 07/21/2023 Brazilian Pepper 1670 3520 23

< 12

< 776

< 25 T67 (Control) 08/15/2023 Brazilian Pepper 1340 6580

< 18

< 1250

< 33 T67 (Control) 09/06/2023 Brazilian Pepper 1910 7160

< 23

< 1160

< 44 T67 (Control) 10/09/2023 Brazilian Pepper 3140 6210 25 71

< 23

< 284 T67 (Control) 11/01/2023 Brazilian Pepper 1490 1960

< 14

< 788

< 28

< 302 T67 (Control) 12/05/2023 Brazilian Pepper 1150 3370

< 15

< 721

< 25

< 276 REQUIRED LLD Table17: Broad Leaf Vegetation - Gamma Analysis: Gamma Isotopic Units: pCi/kg (wet)

Monitoring Results Tables Cs-137 80 Pb-210 Pb-212 Ra-226 Annual Radiological Environmental Operating Report Plant: Turkey Point Nuclear Units 3 & 4 Page 9 of 16 Year: 2023 Page 40 of 55

Page 41 of 55 Station 1st Qtr 2023 2nd Qtr 2023 3rd Qtr 2023 4th Qtr 2023 Annual Mean 2023 NNW-6 3.3 3.9 3.8 3.4 3.6 NW-7 3.6 3.6 3.0 3.4 3.4 NW-8 3.4 4.0 4.0 3.0 3.6 WNW-3 3.3 4.0 4.0 3.7 3.8 WNW-6 3.7 3.0 3.4 3.1 3.3 W-8 3.5 3.0 3.0 3.6 3.3 ENE-1 2.8 3.4 3.4 3.1 3.2 T72 3.3 3.0 3.1 4.4 3.4 PTN-1(1) 3.5 3.8 3.8 4.1 3.8 (1) Indicator station with highest annual mean.

Table18: Supplemental Direct Radiation-Indicators Analysis: Gamma Dose Units: µR/hr Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Annual Radiological Environmental Operating Report Page 10 of 16 Monitoring Results Tables

Year: 2023 Page 42 of 55 Page 11 of 16 End Date LLD 01/02/2023 0.008 0.011 01/09/2023 0.011 0.008 01/16/2023 0.016 0.018 01/23/2023 0.004 0.010 01/30/2023 0.015 0.018 02/07/2023 0.008 0.010 02/15/2023 0.008 0.010 02/21/2023 0.008 0.012 02/28/2023 0.009 0.012 03/06/2023 0.011 0.014 03/13/2023 0.013 0.019 03/20/2023 0.016 0.017 03/27/2023 0.007 0.014 04/03/2023 0.011 0.011 04/10/2023 0.006 0.011 04/18/2023 0.005 0.006 04/25/2023 0.016 0.016 05/02/2023 0.013 0.013 05/09/2023 0.016 0.013 05/15/2023 0.020 0.013 05/23/2023 0.014 0.011 05/30/2023 0.009 0.008 06/05/2023 0.012 0.009 06/12/2023 0.009 0.013 06/20/2023 0.009 0.011 06/27/2023 0.011 0.007 07/06/2023 0.011 0.009 07/14/2023 0.018 0.016 07/20/2023 0.012 0.017 07/26/2023 0.014 0.025 08/02/2023 0.007 0.004 08/08/2023 0.015 0.011 08/14/2023 0.009 0.017 08/21/2023 0.010 0.010 08/29/2023 0.012 0.016 09/05/2023 0.014 0.012 09/12/2023 0.011 0.012 09/19/2023 0.009 0.015 09/26/2023 0.008 0.009 10/02/2023 0.004 0.006 10/09/2023 0.007 0.010 10/16/2023 0.014 0.014 10/23/2023 0.018 0.015 11/01/2023 0.018 0.017 11/07/2023 0.019 0.010 11/13/2023 0.006 0.005 11/20/2023 0.006 0.006 11/28/2023 0.012 0.010 12/05/2023 0.018 0.017 12/11/2023 0.019 0.022 12/19/2023 0.006 0.011 12/27/2023 0.012 0.014 T52 (Indicator)

T56 (Indicator) 0.01 0.01 Plant: Turkey Point Nuclear Units 3 & 4 Annual Radiological Environmental Operating Report Monitoring Results Tables Table19: Supplemental Air Particulate - Gross Beta Analysis: Gross Beta Units: pCi/m3

Location Collection Date Be-7 T52 (Indicator) 03/27/2023 0.1030

< 0.0146

< 0.0010

< 0.0007

< 0.0283 T56 (Indicator) 03/27/2023 0.1380

< 0.0200

< 0.0011

< 0.0010

< 0.0085 T52 (Indicator) 06/27/2023 0.1280

< 0.0237

< 0.0012

< 0.0009 0.0094 T56 (Indicator) 06/27/2023 0.0857

< 0.0111

< 0.0009

< 0.0006

< 0.0294 T52 (Indicator) 09/26/2023 0.0972

< 0.0128

< 0.0011

< 0.0009

< 0.0339 T56 (Indicator) 09/26/2023 0.0888

< 0.0217

< 0.0010

< 0.0011

< 0.0085 T52 (Indicator) 12/27/2023 0.1140

< 0.0263

< 0.0022

< 0.0016

< 0.1240 T56 (Indicator) 12/27/2023 0.0837

< 0.0161

< 0.0010

< 0.0064 REQUIRED LLD Plant: Turkey Point Nuclear Units 3 & 4 Annual Radiological Environmental Operating Report Page 12 of 16 Monitoring Results Tables K-40 Cs-134 Analysis: Gamma Isotopic Year: 2023 Page 43 of 55 Table20: Supplemental Air Particulate Composite - Gamma Units: pCi/m3 0.05 Cs-137 0.06 Pb-210

Year: 2023 Page 44 of 55 Page 13 of 16 End Date LLD 01/02/2023

<0.03

<0.03 01/09/2023

<0.03

<0.03 01/16/2023

<0.02

<0.02 01/23/2023

<0.02

<0.02 01/30/2023

<0.02

<0.02 02/07/2023

<0.02

<0.02 02/15/2023

<0.02

<0.02 02/21/2023

<0.02

<0.02 02/28/2023

<0.02

<0.02 03/06/2023

<0.02

<0.02 03/13/2023

<0.02

<0.02 03/20/2023

<0.03

<0.02 03/27/2023

<0.03

<0.02 04/03/2023

<0.04

<0.04 04/10/2023

<0.02

<0.02 04/18/2023

<0.02

<0.02 04/25/2023

<0.02

<0.02 05/02/2023

<0.02

<0.02 05/09/2023

<0.02

<0.02 05/15/2023

<0.02

<0.02 05/23/2023

<0.02

<0.02 05/30/2023

<0.02

<0.02 06/05/2023

<0.02

<0.02 06/12/2023

<0.02

<0.02 06/20/2023

<0.02

<0.02 06/27/2023

<0.02

<0.02 07/06/2023

<0.02

<0.02 07/14/2023

<0.02

<0.01 07/20/2023

<0.02

<0.02 07/26/2023

<0.02

<0.02 08/02/2023

<0.02

<0.02 08/08/2023

<0.02

<0.01 08/14/2023

<0.03

<0.02 08/21/2023

<0.03

<0.02 08/29/2023

<0.02

<0.02 09/05/2023

<0.01

<0.01 09/12/2023

<0.02

<0.02 09/19/2023

<0.04

<0.03 09/26/2023

<0.03

<0.03 10/02/2023

<0.02

<0.02 10/09/2023

<0.02

<0.02 10/16/2023

<0.02

<0.02 10/23/2023

<0.07

<0.07 11/01/2023

<0.01

<0.01 11/07/2023

<0.02

<0.02 11/13/2023

<0.02

<0.02 11/20/2023

<0.02

<0.02 11/28/2023

<0.02

<0.02 12/05/2023

<0.01

<0.01 12/11/2023

<0.01

<0.01 12/19/2023

<0.01

<0.01 12/27/2023

<0.02

<0.02 T56 (Indicator) 0.07 T52 (Indicator) 0.07 Plant: Turkey Point Nuclear Units 3 & 4 Annual Radiological Environmental Operating Report Monitoring Results Tables Table21: Supplemental Air Cartridges - Iodine-131 Analysis: Iodine-131 Units: pCi/m3

Location End Date H-3 K-40 Location End Date Location End Date H-3 K-40 Location End Date H-3 K-40 3,000 3,000 3,000 T08 (Indicator) 01/17/2023 3960 372 T75 (Indicator) 01/17/2023 < 137 < 68 T84 (Indicator) 01/17/2023 3849 349 T97 (Indicator) 01/17/2023 3960 383 T08 (Indicator) 02/13/2023 3197 278 T75 (Indicator) 02/13/2023 < 140 < 71 T84 (Indicator) 02/13/2023 4001 390 T97 (Indicator) 02/13/2023 4241 286 T08 (Indicator) 03/06/2023 5712 345 T75 (Indicator) 03/06/2023 < 135 < 41 T84 (Indicator) 03/06/2023 5812 293 T97 (Indicator) 03/06/2023 5764 246 T08 (Indicator) 04/03/2023 15084 288 T75 (Indicator) 04/03/2023 < 148 < 75 T84 (Indicator) 04/03/2023 14432 261 T97 (Indicator) 04/03/2023 14146 282 T08 (Indicator) 05/01/2023 24149 374 T75 (Indicator) 05/01/2023 < 136 < 40 T84 (Indicator) 05/01/2023 24111 364 T97 (Indicator) 05/01/2023 24350 326 T08 (Indicator) 06/05/2023 18215 481 T75 (Indicator) 06/05/2023 < 150 < 59 T84 (Indicator) 06/05/2023 18697 307 T97 (Indicator) 06/05/2023 18044 355 T08 (Indicator) 07/21/2023 8525 355 T75 (Indicator) 07/21/2023 < 141 < 76 T84 (Indicator) 07/21/2023 8138 270 T97 (Indicator) 07/21/2023 8409 341 T08 (Indicator) 08/15/2023 7961 354 T75 (Indicator) 08/15/2023 < 139 < 38 T84 (Indicator) 08/15/2023 10053 327 T97 (Indicator) 08/15/2023 10245 329 T08 (Indicator) 09/06/2023 8956 357 T75 (Indicator) 09/06/2023 < 138 < 66 T84 (Indicator) 09/06/2023 8578 280 T97 (Indicator) 09/06/2023 8356 311 T08 (Indicator) 10/10/2023 12904 281 T75 (Indicator) 10/10/2023 < 142 < 39 T84 (Indicator) 10/10/2023 13221 325 T97 (Indicator) 10/10/2023 10268 370 T08 (Indicator) 11/02/2023 14775 392 T75 (Indicator) 11/02/2023 < 137 < 64 T84 (Indicator) 11/02/2023 13658 318 T97 (Indicator) 11/02/2023 13398 279 T08 (Indicator) 12/06/2023 9074 349 T75 (Indicator) 12/06/2023 < 134 < 68 T84 (Indicator) 12/06/2023 9901 270 T97 (Indicator) 12/06/2023 10113 258 Monitoring Results Tables Page 14 of 16 Annual Radiological Environmental Operating Report Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 45 of 55 REQUIRED LLD Analysis: Gamma Isotopic Units: pCi/L Table22: Supplemental Surface Water - Tritium and Gamma REQUIRED LLD REQUIRED LLD REQUIRED LLD H-3 3,000 K-40

Location Collection Date T01 (Indicator) 01/18/2023

< 62

< 153

< 10

< 9 343 634

< 43 40 207 T02 (Indicator) 01/18/2023

< 123 554

< 14

< 13 329 1150

< 83 73 182 T03 (Indicator) 01/18/2023

< 88 442

< 8

< 11 378 1050

< 41

< 17

< 171 T04 (Indicator) 01/18/2023 248 406

< 14

< 14 355 1120

< 67 71 273 T07 (Indicator) 01/18/2023

< 139 183

< 15

< 18

< 542

< 391

< 69

< 25

< 167 T08 (Indicator) 01/18/2023

< 119

< 162

< 11

< 12 375 1170

< 43

< 24

< 207 T10 (Indicator) 01/18/2023

< 182 596

< 16

< 19

< 1300

< 628

< 73

< 40

< 339 T84* (Indicator) 01/18/2023

< 139 471

< 15

< 16

< 647 244

< 67

< 26

< 266 T85* (Indicator) 01/18/2023

< 154 578

< 14

< 1210 939

< 69 111 457 T84* (Indicator) 08/15/2023

< 146 121

< 12

< 11 489 557

< 46 59 304 T85* (Indicator) 08/15/2023

< 196 391

< 13

< 14

< 1410 827

< 64 101 400

Note that site T84 is the same location as site T05, and site T85 is the same location as site T06.

Plant: Turkey Point Nuclear Units 3 & 4 Annual Radiological Environmental Operating Report Page 15 of 16 Cs-137 Pb-210 Ra-226 Th-232 Units: pCi/kg (dry)

Year: 2023 Page 46 of 55 Co-60 U-235 Monitoring Results Tables Table23: Supplemental Shoreline Sediment - Gamma Analysis: Gamma Isotopic REQUIRED LLD Be-7 K-40 U-238 180

Location Collection Date Sample Type K-40 T43 (Indicator) 01/19/2023 Corn & Green Beans

< 67 2420

< 9

< 165 T44 (Indicator) 01/19/2023 Corn & Green Beans

< 75 3280

< 6

< 231 T45 (Indicator) 02/13/2023 Corn & Green Beans

< 64 3430

< 8

< 168 Plant: Turkey Point Nuclear Units 3 & 4 Annual Radiological Environmental Operating Report Page 16 of 16 Year: 2023 Page 47 of 55 Analysis: Gamma Isotopic REQUIRED LLD Monitoring Results Tables Table24: Supplemental Food Crops - Gamma Units: pCi/kg (wet)

Be-7 Cs-137 80 Ra-226

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 48 of 55 Annual Radiological Environmental Operating Report Page 1 of 3 Interlaboratory Comparison Program Results 1.0 Summary The Interlaboratory Comparison Program consists of participating in the DOE Mixed Analyte Performance Evaluation Program (MAPEP).

This program provides similar testing (matrices, nuclides, and levels) as the former EPA Interlaboratory Comparison Program and is referred to as the Mixed Analyte Performance Evaluation Program (MAPEP).

The samples are analyzed using the methods applicable to the REMP (gamma spectroscopy, Gross Beta, and Tritium for water).

From the MAPEP handbook:

Acceptance criteria were developed from a review of precision and accuracy data compiled by other performance evaluation programs (PEPs), the analytical methods literature, from several MAPEP pilot studies, and from what is considered reasonable, acceptable, and achievable for routine analyses among the more experienced laboratories.

The State laboratory participated in MAPEP 48 and 49. These satisfied the requirement of Control 5.3 of the ODCM for the Interlaboratory Comparison Program.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 49 of 55 Annual Radiological Environmental Operating Report Page 2 of 3 Interlaboratory Comparison Program Results Table 25: DOEs Mixed Analyte Performance Evaluation Program (MAPEP) 48 RESULTS Program status Radionuclide Result Ref.

Value Flag (Evaluation)

Acceptance Range Matrix: RdF Air Filter Bq/filter Required MN54 2.133 2.14 A

1.50 - 2.78 Required CO57 0.618 0.661 A

0.463 - 0.859 Required CO60 1.003 1.05 A

0.74 - 1.37 ZN65 2.402 2.25 A

1.58 - 2.93 Required CS134 1.336 1.52 A

1.06 - 1.98 Required CS137 0.608 0.630 A

0.441 - 0.819 Matrix: GrF Air Filter Bq/filter Required Gross Beta 1.361 1.49 A

0.75 - 2.24 Required Gross Alpha 0.984 0.97 A

0.29 - 1.65 Matrix: MaS Soil Bq/kg Required K40 519 574 A

402 - 746 MN54 1171.67 1230 A

861 - 1599 CO57 562 698 A

489 - 907 CO60 721.17 795 A

557 - 1034 ZN65 962.33 990 A

693 - 1287 CS134

-0.54 A

False Positive Test Required CS137 1.02 A

False Positive Test Matrix: MaW Water Bq/L Required H3 581.13 573 A

401 - 745 MN54 10.447 11.3 A

7.9 - 14.7 CO57 0.021 A

False Positive Test Required CO60 6.531 7.24 A

5.07 - 9.41 ZN65 14.75 15.3 A

10.7 - 19.9 Required CS134 8.738 9.6 A

6.7 - 12.5 Required CS137 8.502 8.7 A

6.1 - 11.3 SR90 0.02 A

False Positive Test Matrix: RdV Vegetation, Bq/sample MN54 8.417 8.03 A

5.62 - 10.44 CO57 8.031 6.93 A

4.85 - 9.01 Required CO60 6.604 6.51 A

4.56 - 8.46 ZN65 7.865 7.43 A

5.20 - 9.66 CS134 7.55 7.60 A

5.32 - 9.88 Required CS137 0.018 A

False Positive Test Evaluation: A = Acceptable, W = Acceptable with Warning, N = Not Acceptable, NR = Not Reported A false positive test with an A designation flag identifies the result as less than the detectable activity, since MAPEP does not report zero values. Sensitivity Evaluation has no acceptance range but an identified value at low activity.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 50 of 55 Annual Radiological Environmental Operating Report Page 3 of 3 Interlaboratory Comparison Program Results Table 26: DOEs Mixed Analyte Performance Evaluation Program (MAPEP) 49 RESULTS Program status Radionuclide Result Ref.

Value Flag (Evaluation)

Acceptance Range Matrix: RdF Air Filter Bq/filter Required MN54 1.577 1.57 A

1.10 - 2.04 Required CO57 1.582 1.63 A

1.14 - 2.12 Required CO60 0.025 A

False Positive Test ZN65 2.027 1.89 A

1.32 - 2.46 Required CS134 1.549 1.60 A

1.12 - 2.08 Required CS137 0.046 A

False Positive Test Matrix: GrF Air Filter Bq/filter Required Gross Beta 0.962 0.927 A

0.464 - 1.391 Required Gross Alpha 0.284 0255 A

0.077 - 0.434 Matrix: MaS Soil Bq/kg Required K40 530.33 574 A

402 - 746 MN54 1.85 N (1)

False Positive Test CO57 927.5 1060 A

742 - 1378 CO60 843 898 A

629 -1167 ZN65 1180 1160 A

812 - 1508 CS134 698.04 693 A

485 - 901 Required CS137 1757.5 1810 A

1267 - 2353 Matrix: MaW Water Bq/L Required H3 0.7 A

False Positive Test MN54 12.1 12.7 A

8.9 - 16.5 CO57 17.8 19.3 A

13.5 - 25.1 Required CO60 0.053 A

False Positive Test ZN65 19 19.1 A

13.4 - 24.8 Required CS134 11.074 11.3 A

7.9 - 14.7 Required CS137 8.62 8.7 A

6.1 - 11.3 SR90 7.5 7.31 A

5.12 - 9.50 Matrix: RdV Vegetation, Bq/sample:

MN54 2.54 2.56 A

1.79 - 3.33 CO57 4.463 4.24 A

2.97 - 5.51 Required CO60 2.627 2.79 A

1.95 - 3.63 ZN65 0.134 A

False Positive Test CS134 4.599 4.98 A

3.49 - 6.47 Required CS137

-0.014 A

False Positive Test Evaluation: A = Acceptable, W = Acceptable with Warning, N = Not Acceptable, NR = Not Reported A false positive test with an A designation flag identifies the result as less than the detectable activity, since MAPEP does not report zero values. Sensitivity Evaluation has no acceptance range but an identified value at low activity.

(1) See Attachment 1, Table 7, Samples Deviations Table, Comment 2

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 51 of 55 Annual Radiological Environmental Operating Report Page 1 of 4 Industry Initiative Ground Water Protection Program 2023 1.0 Description of Program Turkey Point Nuclear maintains a sampling and analysis program to meet procedural requirements.

The procedures that govern the performance are EV-AA-100-1001, Fleet Ground Water Protection Program Implementing Guideline and 0-ADM-654, Ground Water Protection Program.

The sampling frequency is quarterly; more often if conditions warrant.

Sample assay is performed by a private contractor GEL labs.

2.0 Discussion The Turkey Point Nuclear site is surrounded on three sides by the closed cooling canal system.

This canal system, in addition to being the source of tertiary cooling, is the body of water receiving permitted liquid radiological waste the canal system tritium level average was 11,498 pCi/L in 2023 with a max concentration of 24,350 pCi/L. This supports the expectation to see tritium in subsurface water collected either on-site or off-site close to the (within the Owner Controlled Area) cooling canal system. Twenty-eight (28) wells were involved in the 2023 monitoring program; some locations have multiple (two or three) depths.

Samples are analyzed for Tritium & Gamma emitters. As conditions warrant, analysis included Fe-55, Ni-63, Sr-89/90 and alpha (all were < LLD).

3.0 Results The tritium results for the groundwater wells were from <MDA to 4,330 pCi/L. All results were less than the limits of the Offsite Dose Calculation Manual, Table 5.1-2, Reporting Levels for Radioactivity Concentrations in Environmental Samples. Storm drain outfalls occasionally are below the tidal mark of the canal and will have ingress of canal water into the storm drain. The higher levels of tritium in the storm drain section are due to the canal water ingress into the storm drain.

Tabular results follow:

Year: 2023 Page 52 of 55 Location First Quarter 2023 H-3 Second Quarter 2023 H-3 Third Quarter 2023 H-3 Fourth Quarter 2023 H-3 REQUIRED LLD 3,000 3,000 3,000 3,000 PTPED-1 170 113 195 454 CD-1 365 383 216 635 P-94-2 242 283 P-94-4 957 902 493 1030 STP-1 22 125 PTN-MW-1s

<MDC

<MDC PTN-MW-1i 344

<MDC PTN-MW-1d 795 422 PTN-MW-2s 9

<MDC PTN-MW-3s 4

19.3 PTN-MW-4s

<MDC 150

<MDC 299 PTN-MW-4i 3540

<MDC 3470 462 PTN-MW-4d 59

<MDC

<MDC 119 PTN-MW-5s 91 19.7

<MDC 205 PTN-MW-5i 16 402 1150 566 PTN-MW-5d 934 767 1180 1300 PTN-MW-6SR 36.3 322 PTN-MW-6DR 439 2.13 PTN-MW-7s 1340 1400 926 2930 PTN-MW-7i 1530 1230 95.3 159 PTN-MW-7d 109 156 31.7 114 PTN-MW-8s 928 3200 4330 2510 PTN-MW-9s 1070 803 390 1280 PTN-MW-10s 14

<MDC PTN-MW-10i 59 44.6 PTN-MW-10d

<MDC

<MDC PTN-MW-11s 609 374 155 823 PTN-MW-12s 1050 656 1150 1530 NE StrmDrain 884 377 400 SE StrmDrain 3870 3160 W StrmDrain (1) 1290 CRF StrmDrain Dry Dry Dry Dry (1) Storm Drain submerged underwater at time of collection.

MDCs are calculated a-posteriori values. Target isotope was analyzed for but not detected above the MDC and LLD.

Monitoring Results Tables Annual Radiological Environmental Operating Report Page 2 of 4 Plant: Turkey Point Nuclear Units 3 & 4 Table27: Ground Water - Tritium Analysis: Tritium Units: pCi/L

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 53 of 55 Annual Radiological Environmental Operating Report Page 3 of 4 Industry Initiative Ground Water Protection Program 2023 D. List of wells and their locations Well Name Location PTN-MW-1s PTN-MW-1i PTN-MW-1d Northeast of Switch Yard, South of entrance road to Fossil Plant PTN-MW-2s South Switch Yard by parking lot PTN-MW-3s Northeast of new Issues Warehouse PTN-MW-4s PTN-MW-4i PTN-MW-4d SW corner of parking lot South of Training Bldg.

PTN-MW-5s PTN-MW-5i PTN-MW-5d SW of CRF, by canal PTN-MW-6SR PTN-MW-6DR NE of site in the berm for fossil oil tanks PTN-MW-7s PTN-MW-7i PTN-MW-7d NE of RCA, by Neutralization Tank PTN-MW-8s Near U3 RWST PTN-MW-9s Near U4 RWST PTN-MW-10s PTN-MW-10i PTN-MW-10d SE of Radwaste Bldg. by S/G Bldg.

PTN-MW-11s South of truck entrance to Rad Waste Bldg.

PTN-MW-12s West of Condenser Polisher road STP-1 West of Maintenance Bldg. on corner or road into parking lot P-94-4 East of Dressout Building, under delay fence P-94-2 By Neutralization Basin, East of the RCA CD-1 By Neutralization Basin, East of the RCA PTPED-1 By Neutralization Basin, East of the RCA Note: s, i and d refer to well depth: shallow - 20 ft., intermediate - 40 ft. and deep - 60 ft Maps depicting the well locations follow.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 54 of 55 Annual Radiological Environmental Operating Report Page 4 of 4 Industry Initiative Ground Water Protection Program 2023 Figure 5: Onsite Tritium Monitoring Wells

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 55 of 55 Annual Radiological Environmental Operating Report Page 1 of 1 ERRATA Data 2023 Significant errors should be corrected within one year of discovery, and the correction may be submitted with the next (normally scheduled) submittal of the AREOR as follows. A brief narrative explanation of the errors should be included in, Errata/Corrections to Previous AREORs, Supplemental Information. The narrative should include a statement that the affected pages, in their entirety, are included as attachments to the AREOR. Additionally, the affected, corrected pages, in their entirety, should be submitted as an attachment to the AREOR. The corrected pages should reference the affected calendar year and should contain revision bars in the margins of the page to indicate the locations of the changes. If submitting corrections to multiple AREORs, make a separate attachment for each of the affected years.

Other methods of correcting previous AREORs may be used provided the corrections are clearly and completely described.

Significant errors include:

Inaccurate reporting of samples collected and analyzed.

Inaccurate reporting of sample results.

Omissions that impede the NRCs ability to adequately assess the information supplied by the licensee, or other errors that alter the intent of the report.

1.0 List of changes from the 2022 AREOR There were no corrections to previous reports found in 2023.

L-2024-082, 2023 Annual Radiological Environmental Operating Report

Contents

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Enclosure:

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2.0 INTRODUCTION

SUMMARY

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2.0 INTRODUCTION

SUMMARY

3.3 Table12

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L-2024-082, 2023 Annual Radiological Environmental Operating Report

Text

Enclosure:

SUMMARY

2.0 INTRODUCTION

SUMMARY

SUMMARY

2.0 INTRODUCTION

SUMMARY

3.3 Table12

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