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

May 15, 2024

L-2024-082 10 CFR 50.36b

U.S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555

Re: Turkey Point Nuclear Plant, Units 3 and 4 Docket Nos. 50 -250 and 50-251

2023 Annual Radiological Environmental Operating Report

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 Dosimetr y (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 andFish Sample Results...........................................................................................18

4.4.2 Broad Leaf Vege tation 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 - A irborne........................................................................................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 L eaf 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, 2 023. 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 R EMP 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.

Attachment 1 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 Unit s 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 Sampling and Collection Distance and Direction Frequency Type and Frequency Of Analyses

RADIOIODINE AND PARTICULATES

T51 (2 mi. NNW) - Entrance 5 sample indicator locations and 1 sample Area to Biscayne National Park.

control location.

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

T58 (1 mi. NW) - Turkey Point Continuous sampler operation

Radioiodine Canisters - I-131 analysis weekly.

Entrance Road. with sample collection week ly or

T72 (<1 mi. WSW) - Just before

Air Particulate - Gross beta radioactivity analysis more frequently if required by following filter change.

entrance to Land Utilizations dust loading.

Air Particulate - Gamma Isotopic analysis quarterly.

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.

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 Sampling and and Direction Collection Frequency Type and Frequency Of Analyses

TLDS

N-2 (2 mi N) - Convoy Point 22 indicator sample locations and 1 control

N-7 (7.1 mi N) - Black Point Marina Quarterly

mR exposure quarterly.

sample location. parking lot on siren pole

N-10 (1 0.6 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 117 th 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.

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 Sampling and and Direction Collection Frequency Type and Frequency Of Analyses

TLDS (Contd)

W-9 (8.6 mi W) - Card Sound Rd. 0.6 22 indicator sample locations and 1 control mi SSE of US 1 on siren pole. Quarterly

mR exposure quarterly.

sample location.

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.

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 Sampling and and Direction Collection Frequency Type and Frequency Of Analyses

T42 (<1 mi. ENE) - Biscayne Bay at SURFACE WATER Turkey Point. Grab samples Monthly

Gamma isotopic analysis and tritium analysis 2 indicator sample locations and 1 control

T81 (6 mi. S) - Card Sound, near monthly.

sample location. Mouth of Old Discharge Canal.

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

SEDIMENT FROM SHORELINE

T42 (<1 mi ENE) - Biscayne Bay at 2 indicator sample locations and 1 control Turkey Point. Semi-annually

Gamma isotopic analysis semi -annually.

sample location. Locations coincide with the

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

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

Denotes Control sample

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

Denotes Control sample Table 4: Exposure Pathway - Ingestion

Requirement Sample Point Description Distance Sampling and Collection and Direction Frequency Type and Frequency Of Analyses

CRUSTACEA AND FISH

T81 (6 mi. S) - Card Sound, near Mouth

1 indicator sample location and 1 control of Old Discharge Canal. Semi-annually Gamma isotopic analysis semi -annually.

sample location.

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

BROADLEAF VEGATATION

T40 (3 mi W) - South of Palm Dr. on

2 indicator sample locations and 1 control S.W. 117th Street Extension. Monthly Gamma isotopic analysis monthly.

sample location.

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

Denotes Control sample

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 Nuclear s 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 addit ion, 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 L eaf 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 L eaf 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 c ensus 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 NEAREST NEAREST RESIDENCE/BUSINESS GARDEN (A) 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° 4.5 mi @ 303°

3.7 mi @ 302° 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° 4.4 mi @ 332° 4.7 mi @ 328° 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

Range Sector Bearing Nearest Residence/Business Location N (A) 1.9 miles Homestead Bayfront Park complex. Contact is Jim Wyath. Office 349° 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 South Glade Outfitters. Located on opposite side of building from 349° 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 Biscayne National Park at Convoy Point. Open 7 am to 5:30 pm 354° 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.)

Range Sector Bearing Nearest Residence/Business Location WNW (A) 1.7 miles FP&L daycare center and shooting range near the entrance to the 302° 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 11790 Canal Drive on the south side of Canal Drive (SW 328 St) 302° 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 The Waste Management Homestead Landfill is located north of 304° 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 11000 SW 320th St. Per property records, this house is on land 311° 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 High Hope Nursery at 11400 SW 316th St. Contact is George 316° 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 Snapper Creek Nursery at 11600 SW 316th Street. 14 workers 314° 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 29800 SW 107th Ave. Per property records, this is a small one 333° bedroom residence on land zoned as mixed use agricultural. No information on occupants. N25° 29.450 W80° 21.817.

NNW (B) 4.7 miles Mirtica and Sons Dragon Fruit Farm. Entrance at the end of SW 328° 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

Range Nearest Garden Location (with estimated total area of 500 Sector Bearing 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.)

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

WNW (A) 4.5 miles Thai Farm. South of Mowry Drive (SW 320th St) and about 0.6 303° 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 Farm Share, Inc at 14125 SW 320th St, where farmers donate 295° 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 Under the Vine. 11100 SW 296th St. Entrance at SW 107th Ave &

332° 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 Mirtica and Sons Dragon Fruit Farm. Entrance at the end of SW 328° 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

Attachment 3 contains result summary for Interlaboratory Comparison P rogram 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.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 26 of 55 Annual Radiological Environmental Operating Report

Table6: Radiological Environmental Monitoring Program Summary

Sample Type Type / Number Indicator Locations Location(4) [Highest Mean (F)(3) Control Number of (Units) of Analyses(1) LLD (2) Mean (F)(3) Annual Mean] [Range] Locations Mean Non Routine

[Range] (F)(3) [Range] 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] [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]

Air Particulate (pCi/m3) 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. W NW ) (0.009 - 0.012] [<LLD - 0.009]

Airborne Iodine I-131 / 312 0.07 < LLD N/A N/A < LLD 0 (pCi/m 3)

Direct Radiation Gamma / 88 (6) 3.8 (88 / 88) WNW-10 4.3 (4 / 4) N/A 0 Indicator TLD [2.6 - 4.9] (9.8 mi. W NW ) [3.9 - 4.8]

(µR/hour)

Direct Radiation Gamma / 4 N/A NNE-22 3.3 (4 / 4) 3.3 (4 / 4) 0 Control TLD (6)

(µR/hour) (22.6 mi. NNE) [3.0 - 3.7] [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.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 27 of 55 Annual Radiological Environmental Operating Report

Table6: Radiological Environmental Monitoring Program Summary

Sample Type Type / Number Indicator Locations Location(4) [Highest Mean (F)(3) Control Number of (Units) of Analyses(1) LLD (2) Mean (F)(3) Annual Mean] [Range] Locations Mean Non Routine

[Range] (F)(3) [Range] Results(5)

H-3 / 36 3,000 91 (1 / 24) T81 91 (1 / 12) < LLD 0 Surface Water [<LLD - 91] (6 mi. S) [<LLD - 91]

(pCi/L) 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] [<LLD - 86]

K-40 -- 98 (1 / 4) T67 155 (2 / 2) 155 (2 / 2) 0

[<LLD - 98] (13-18 mi. N, NNE) [146 - 163] [146 - 163]

Co-60 -- < LLD N/A N/A < LLD 0 Sediment Cs-137 180 < LLD N/A N/A < LLD 0 (pCi/kg dry) Pb-210 -- < LLD N/A N/A < LLD0

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.

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

Table6: Radiological Environmental Monitoring Program Summary

Sample Type Type / Number Indicator Locations Location(4) [Highest Mean (F)(3) Control Number of (Units) of Analyses(1) LLD (2) Mean (F)(3) Annual Mean] [Range] Locations Mean Non Routine

[Range] (F)(3) [Range] 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] [1170 - 2760] 0 Crustacea Ra-226 (pCi/kg w et) -- 169 (1 / 2) T81 169 (1 / 2) <LLD0

[<LLD - 169] (6 mi. S) [<LLD - 169]

Ra-228 -- < LLD N/A N/A < LLD 0 GS / 4 Fish K-40 -- 3035 (2 / 2) T81 3035 (2 / 2) 2885 (2 / 2) 0 (pCi/kg w et) [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] [1960 - 8380]

Broad Leaf Cs-137 80 59 (15 / 24) T40 74 (10 / 12) 24 (2 / 12) 0 (pCi/kg w et) [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. W NW ) [<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.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 29 of 55 Annual Radiological Environmental Operating Report Attachment 1 Page 1 of 1 Sample Deviations

Table 7: Sample Deviations Table

Comment Sample Sample No. Media Location Date Problem Evaluation / Actions Affected

The Bureau of Radiation Control (BRC) under the State of Florida, identified a discrepancy in the reported results for MAPEP MaS49 sample (see Attachment 3), 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

- False Positive possibly that the background subtraction method was not applied during the 1 Soil MAPEP23MaS49 2023results for analysis. This issue was evaluated by the Florida lab participating in their QC Mn-54 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 The air sample pump was not oper ational upon discovery dur ing routine weekly 03/06/23 sampling. D ue to limited air f low t hrough the iodine cartridge, t he sample pump 2 Air Sample T57-Pump Failure was r eplaced 3 times over the course of three weeks f rom 03/ 06/23 thru 03/ 20/23.

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

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 1st, 3rd, Broad Leaf State of Florida 2023 quarterly reports the sample results were 90 pCi/kg, 109 3 Broad Leaf and 4th VegetationpCi/kg, and 100 pCi/kg (1st quarter), 83 pCi/kg (3rd quarter), 81 pCi/kg, and 97 Vegetation T40Qtr.Cs-137 Result pCi/kg (4th quarter). Although these values do not meet the ODCM reporting above LLD 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 Sample Sample No. Media Location Date Problem Evaluation / Actions Affected

4 Milk T99 2023 Sample T99, the supplemental goat milk sample, was unavailable for 2023 because the Unavailable 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

Plant: Turkey Point Nuclear Units 3 & 4 2023 Page 32 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 1 of 16 Monitoring Results Tables Table8: Air Particulate - Gross Beta Analysis: Gross Beta Units: pCi/m 3 T41 T51 T57 T58 T64(1)

End Date (Indicator) (Indicator) (Indicator) (Indicator) (Control) T72 (Indicator)

LLD 0.01 0.01 0.01 0.01 0.01 0.01 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 Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 33 of 55 Annual Radiological Environmental Operating Report Attachment Pe 2 of 16 Ming Resultsables Tleirtile Coote -

Any GmItopic Unit pCi/m 3 Location Collection Date Be-7 K0 C134 Cs-137 Pb-210 REQUIRED LLD -- 0.06 --

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 < 0.0000 < 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 Year: 2023 Page 34 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 3 of 16 Monitoring Results Tables Table10: Air Cartridges - Iodine-131 Analysis: Iodine-131 Units: pCi/m 3 End Date T41 T51 T57 T58 T64 T72 (Indicator) (Indicator) (Indicator) (Indicator) (Control) (Indicator)

LLD 0.07 0.07 0.07 0.07 0.07 0.07 01/02/2023 < 0.030 < 0.030 < 0.030 < 0.030 < 0.030 < 0.040 01/09/2023 < 0.030 < 0.030 < 0.030 < 0.030 < 0.030 < 0.030 01/16/2023 < 0.020 < 0.020 < 0.030 < 0.020 < 0.020 < 0.020 01/23/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 01/30/2023 < 0.020 < 0.020 < 0.010 < 0.020 < 0.020 < 0.020 02/07/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 02/15/2023 < 0.020 < 0.020 < 0.010 < 0.020 < 0.020 < 0.020 02/21/2023 < 0.020 < 0.020 < 0.030 < 0.020 < 0.020 < 0.020 02/28/2023 < 0.020 < 0.020 < 0.050 < 0.020 < 0.020 < 0.020 03/06/2023 < 0.020 < 0.020 (1)< 0.100 < 0.020 < 0.020 < 0.020 03/13/2023 < 0.020 < 0.020 (1)< 0.080 < 0.020 < 0.020 < 0.020 03/20/2023 < 0.020 < 0.020 (1)< 0.080 < 0.020 < 0.020 < 0.020 03/27/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 04/03/2023 < 0.040 < 0.040 < 0.040 < 0.040 < 0.040 < 0.040 04/10/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 04/18/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 04/25/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 05/02/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 05/09/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 05/15/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.030 < 0.020 05/23/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 05/30/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 06/05/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 06/12/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 06/20/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 06/27/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 07/06/2023 < 0.020 < 0.010 < 0.010 < 0.020 < 0.020 < 0.020 07/14/2023 < 0.010 < 0.010 < 0.020 < 0.010 < 0.020 < 0.010 07/20/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 07/26/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 08/02/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 08/08/2023 < 0.010 < 0.010 < 0.010 < 0.020 < 0.010 < 0.010 08/14/2023 < 0.020 < 0.020 < 0.020 < 0.030 < 0.030 < 0.020 08/21/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 08/29/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 09/05/2023 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 09/12/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 09/19/2023 < 0.030 < 0.030 < 0.030 < 0.030 < 0.030 < 0.030 09/26/2023 < 0.030 < 0.030 < 0.030 < 0.030 < 0.040 < 0.030 10/02/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 10/09/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 10/16/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 10/23/2023 < 0.070 < 0.070 < 0.070 < 0.070 < 0.070 < 0.070 11/01/2023 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 11/07/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 11/13/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 11/20/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 11/28/2023 < 0.020 < 0.010 < 0.020 < 0.020 < 0.020 < 0.020 12/05/2023 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 12/11/2023 < 0.010 < 0.010 < 0.010 < 0.020 < 0.010 < 0.010 12/19/2023 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 < 0.010 12/27/2023 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 < 0.020 (1) See Attachment 1, Table 7, Samples Deviations Table, Comment 2 Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 35 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 4 of 16 Monitoring Results Tables Table11: Direct Radiation-Indicators Analysis: Gamma Dose Units: µR/hr Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean 2023 2023 2023 2023 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 W NW -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 W SW -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.

Table12: Direct Radiation - Control Analysis: Gamma Dose Units: µR/hr Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean 2023 2023 2023 2023 2023 NNE-22 3.7 3.4 3.0 3.1 3.3 Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 36 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 5 of 16 Monitoring Results Tables Table13: Surface Water - Tritium and Gamma Analysis: Gamma Isotopic Units: pCi/L Location End Date K-40 Location End Date K-40 Location End Date K-40H-3H-3H-3 REQUIRED LLD 3,000 -- REQUIRED LLD 3,000 -- --REQUIRED LLD 3,000 T42 01/17/2023 < 137 205 T67 01/17/2023 < 137 287 T81 01/17/2023 < 137 266 (Indicator) (Control) (Indicator)

T42 02/13/2023 < 138 272 T67 02/13/2023 < 138 153 T81 02/13/2023 < 140 320 (Indicator) (Control) (Indicator)

T42 03/07/2023 < 135 364 T67 03/06/2023 < 135 246 T81 03/06/2023 < 135 264 (Indicator) (Control) (Indicator)

T42 04/03/2023 < 151 403 T67 04/03/2023 < 151 237 T81 04/03/2023 < 148 302 (Indicator) (Control) (Indicator)

T42 05/01/2023 < 136 312 T67 05/01/2023 < 136 280 T81 05/01/2023 91 364 (Indicator) (Control) (Indicator)

T42 06/05/2023 < 150 229 T67 06/05/2023 < 150 217 T81 06/05/2023 < 150 416 (Indicator) (Control) (Indicator)

T42 07/21/2023 < 141 420 T67 07/21/2023 < 141 195 T81 07/21/2023 < 141 321 (Indicator) (Control) (Indicator)

T42 08/15/2023 < 139 320 T67 08/15/2023 < 139 250 T81 08/15/2023 < 139 252 (Indicator) (Control) (Indicator)

T42 09/06/2023 < 138 221 T67 09/06/2023 < 138 184 T81 09/06/2023 < 138 311 (Indicator) (Control) (Indicator)

T42 10/10/2023 < 142 238 T67 10/09/2023 < 139 157 T81 10/10/2023 < 142 323 (Indicator) (Control) (Indicator)

T42 11/02/2023 < 137 198 T67 11/01/2023 < 137 187 T81 11/02/2023 < 137 255 (Indicator) (Control) (Indicator)

T42 12/06/2023 < 137 172 T67 12/05/2023 < 134 184 T81 12/06/2023 < 137 232 (Indicator) (Control) (Indicator)

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 37 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 6 of 16 Monitoring Results Tables Table 14: Shoreline Sediment - Gamma Analysis: Gamma Isotopic Units: pCi/kg (dry)

Location Collection Date Be-7 K-40 Co-60 Cs-137 Pb-210 Ra-226 Th-232 U-235 U-238 REQUIRED LLD -- -- -- 180 -- -- -- -- --

T42 (Indicator) 01/18/2023 46 98 < 8 < 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 Plt:urkeyointuearnits 3 & Year: 2023 Page 38 of 55 Alaogicalironmealratieport Attent P 16 Monitits Tabl

Table15: Crustacea - Gamma Anyma Itopic Units: pCi/kg (wet)

Location Collection Sample Type K-40 Ra-226 Ra-228 Date REQUIRED LLD -- -- --

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 Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 39 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 8 of 16 Monitoring Results Tables

Table16: Fish - Gamma Analysis: Gamma Isotopic Units: pCi/kg (wet)

Location Collection Sample Type K-40 Ra-226 Ra-228 Date REQUIRED LLD -- -- --

T67 (Control) 01/12/2023Mixed 3010 < 408 < 72 Species T81 (Indicator) 01/19/2023Mixed 3490 < 371 < 83 Species T67 (Control) 08/15/2023Mixed 2760 < 624 < 111 Species T81 (Indicator) 08/15/2023Mixed 2580 < 517 < 93 Species urklear Units 3 Year: 2023 Pf 55 Adiological Environmental Operating Report Attachment 2 Pe 9 of 16 Moniringesulables Table 17: Broadeaf Vegeonamma Anytopic Uni:Ci/kg (we Location Collection Sample Type Be-7 K-40 C137 10 12 R226 Date REQUIRED LLD -- --

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 < 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 < 18 < 1250 < 33 T67 (Control) 09/06/2023 Brazilian Pepper 1910 7160 < 23 < 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 Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 41 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 10 of 16 Monitoring Results Tables Table18: Supplemental Direct Radiation-Indicators Analysis: Gamma Dose Units: µR/hr Station 1st Qtr 2nd Qtr 3rd Qtr 4th Qtr Annual Mean 2023 2023 2023 2023 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 W NW -3 3.3 4.0 4.0 3.7 3.8 W NW -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.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 42 of 55 Annual Radiological Environmental Operating Report Page 11 of 16 Monitoring Results Tables Table19: Supplemental Air Particulate - Gross Beta Analysis: Gross Beta Units: pCi/m3 End Date T52 (Indicator) T56 (Indicator)

LLD 0.01 0.01 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 Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 43 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 12 of 16 Monitoring Results Tables Table20: Supplemental Air Particulate Composite - Gamma Analysis: Gamma Isotopic Units: pCi/m3 Location Collection Date Be-7 K-40 Cs-134 Cs-137 Pb-210 REQUIRED LLD -- -- 0.05 0.06 --

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 < 0.0010 < 0.0064 Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 44 of 55 Annual Radiological Environmental Operating Report Page 13 of 16 Monitoring Results Tables Table21: Supplemental Air Cartridges - Iodine-131 Analysis: Iodine-131 Units: pCi/m3 End Date T52 (Indicator) T56 (Indicator)

LLD 0.07 0.07 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 Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 45 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 14 of 16 Monitoring Results Tables Table22: Supplemental Surface Water - Tritium and Gamma Analysis: Gamma Isotopic Units: pCi/L Location End Date H-3 K-40 Location End Date Location End Date H-3 K-40 Location End Date H-3 K-40H-3K-40 REQUIRED LLD 3,000 -- REQUIRED LLD 3,000 -- REQUIRED LLD 3,000 -- REQUIRED LLD 3,000 --

T08 01/17/2023 3960 372T75 01/17/2023 < 137 < 68T84 01/17/2023 3849 349T97 01/17/2023 3960 383 (Indicator) (Indicator) (Indicator) (Indicator)

T08 02/13/2023 3197 278T75 02/13/2023 < 140 < 71T84 02/13/2023 4001 390T97 02/13/2023 4241 286 (Indicator) (Indicator) (Indicator) (Indicator)

T08 03/06/2023 5712 345T75 03/06/2023 < 135 < 41T84 03/06/2023 5812 293T97 03/06/2023 5764 246 (Indicator) (Indicator) (Indicator) (Indicator)

T08 04/03/2023 15084 288 T75 04/03/2023 < 148 < 75T84 04/03/2023 14432 261 T97 04/03/2023 14146 282 (Indicator) (Indicator) (Indicator) (Indicator)

T08 05/01/2023 24149 374 T75 05/01/2023 < 136 < 40T84 05/01/2023 24111 364 T97 05/01/2023 24350 326 (Indicator) (Indicator) (Indicator) (Indicator)

T08 06/05/2023 18215 481 T75 06/05/2023 < 150 < 59T84 06/05/2023 18697 307 T97 06/05/2023 18044 355 (Indicator) (Indicator) (Indicator) (Indicator)

T08 07/21/2023 8525 355T75 07/21/2023 < 141 < 76T84 07/21/2023 8138 270T97 07/21/2023 8409 341 (Indicator) (Indicator) (Indicator) (Indicator)

T08 08/15/2023 7961 354T75 08/15/2023 < 139 < 38T84 08/15/2023 10053 327 T97 08/15/2023 10245 329 (Indicator) (Indicator) (Indicator) (Indicator)

T08 09/06/2023 8956 357T75 09/06/2023 < 138 < 66T84 09/06/2023 8578 280T97 09/06/2023 8356 311 (Indicator) (Indicator) (Indicator) (Indicator)

T08 10/10/2023 12904 281 T75 10/10/2023 < 142 < 39T84 10/10/2023 13221 325 T97 10/10/2023 10268 370 (Indicator) (Indicator) (Indicator) (Indicator)

T08 11/02/2023 14775 392 T75 11/02/2023 < 137 < 64T84 11/02/2023 13658 318 T97 11/02/2023 13398 279 (Indicator) (Indicator) (Indicator) (Indicator)

T08 12/06/2023 9074 349T75 12/06/2023 < 134 < 68T84 12/06/2023 9901 270T97 12/06/2023 10113 258 (Indicator) (Indicator) (Indicator) (Indicator)

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 46 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 15 of 16 Monitoring Results Tables Table 23: Supplemental Shoreline Sediment - Gamma Analysis: Gamma Isotopic Units: pCi/kg (dry)

Location Collection Date Be-7 K-40 Co-60 Cs-137 Pb-210 Ra-226 Th-232 U-235 U-238 REQUIRED LLD -- -- -- 180 -- -- -- -- --

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 < 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 Year: 2023 Page 47 of 55 Annual Radiological Environmental Operating Report Attachment 2 Page 16 of 16 Monitits Tabl Table24:ent Food Crops -ma Analysis: Gamma Isotopic Uni: pCi/kg (we Location Collection Sample Type K-40B7C137R226 Date REQUIRED LLD --

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 Year: 2023 Page 48 of 55 Annual Radiological Environmental Operating Report Attachment 3 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 Attachment 3 Page 2 of 3 Interlaboratory Comparison Program Results Table 25: DOEs Mixed Analyte Performance Evaluation Program (MAPEP) 48 RESULTS Program Result Ref. Flag Acceptance status Radionuclide Value (Evaluation) 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 0.984 0.97 A 0.29 - 1.65 Alpha Matrix: MaS Soil Bq/kg Required K40 519 574 A 402 - 746 MN54 1171.67 1230 A 861 - 1 599 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 Attachment 3 Page 3 of 3 Interlaboratory Comparison Program Results Table 26: DOEs Mixed Analyte Performance Evaluation Program (MAPEP) 49 RESULTS Program Result Ref. Flag Acceptance status Radionuclide Value (Evaluation) 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 0.284 0255 A 0.077 - 0.434 Alpha 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 - 1 378 CO60 843 898 A 629 -1167 ZN65 1180 1160 A 812 - 1 508 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 acceptancerange 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 Attachment 4 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:

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 52 of 55 Annual Radiological Environmental Operating Report Attachment 4 Page 2 of 4 Monitoring Results Tables Table27: Ground Water - Tritium Analysis: Tritium Units: pCi/L First Quarter Second Quarter Third Quarter Fourth Quarter Location 2023 2023 2023 2023 H-3 H-3 H-3 H-3 REQUIRED LLD 000 000 000 000 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.

Plant: Turkey Point Nuclear Units 3 & 4 Year: 2023 Page 53 of 55 Annual Radiological Environmental Operating Report Attachment 4 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 Northeast of Switch Yard, South of entrance road to Fossil Plant PTN-MW-1d PTN-MW-2s South Switch Yard by parking lot PTN-MW-3s Northeast of new Issues Warehouse PTN-MW-4s PTN-MW-4i SW corner of parking lot South of Training Bldg.

PTN-MW-4d PTN-MW-5s PTN-MW-5i SW of CRF, by canal PTN-MW-5d PTN-MW-6SR PTN-MW-6DR NE of site in the berm for fossil oil tanks PTN-MW-7s PTN-MW-7i NE of RCA, by Neutralization Tank PTN-MW-7d PTN-MW-8s Near U3 RWST PTN-MW-9s Near U4 RWST PTN-MW-10s PTN-MW-10i SE of Radwaste Bldg. by S/G Bldg.

PTN-MW-10d 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 Attachment 4 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 Attachment 5 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

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