Text

Independent Spent Fuel Storage Installation (Isfsi), Annual Radiological Environmental Operating Report 80 January 1, 2022 Through December 31, 2022
	ML23150A205
Person / Time
Site:	Peach Bottom
Issue date:	05/30/2023
From:	Stiltner R; Constellation Energy Generation
To:	; Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation, Document Control Desk
References
	Download: ML23150A205 (1)
	v • d • e

May 30, 2023 Enclosure (1) ² 2022 Annual Radiological Environmental Operating Report Cc: USNRC Regional Administrator ² NRC Region 1 NRC Senior Resident Inspector ² Peach Bottom Atomic Power Station USNRC Project Manager ² NRR Director, Bureau of Radiation Protection ² Pennsylvania Department of Environmental Protection CCN 23-44 Constellation~

U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 Peach Bottom Atomic Power Station Units 2 and 3 Independent Spent Fuel Storage Installation (ISFSI)

Facility Operation License DPR-44 and DPR-56 NRC Docket 50-277 and 50-278 and ISFSI Docket 72-29

Subject:

Annual Radiological Environmental Operating Report 80 January 1, 2022 through December 31, 2022 In accordance with the requirements of Section 5.6.2 of the Peach Bottom Atomic Power Station (PBAPS), Units 2 and 3 Technical Specifications, this letter submits the Annual Radiological Environmental Operating Report 80. This report provides the 2022 results for the Radiological Environmental Monitoring Program (REMP) as called for in the Offsite Dose Calculation Manual.

In assessing the data collected for the REMP, we have concluded that the operation of PBAPS, Units 2 and 3, had no adverse impact on the environment. There are no commitments contained in this letter.

If you have any questions or require additional information, please do not hesitate to contact Erika Wagner at 717-456-3716.

Sincerely, Digitally signed by Stiltner, Stiltner, Ryan C ~~::;023.os.3014:s, :30

-04'00' Ryan Stiltner, Acting Plant Manager Peach Bottom Atomic Power Station RS/WS/MR/T JH/DM/EW

ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT NO. 80 FOR THE PEACH BOTTOM ATOMIC POWER STATION UNITS 2 AND 3 January 1 - December 31, 2022 Prepared by Constellation Generation Solutions CONSTELLATION GENERATION CONSTELLATION NUCLEAR LLC MAY 2023

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 i

TABLE OF CONTENTS LIST OF FIGURES...................................................................................................................... ii LIST OF TABLES....................................................................................................................... iii I.

SUMMARY

.................................................................................................................................1 II. PEACH BOTTOM ATOMIC POWER STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM......................................................3 II.A. INTRODUCTION......................................................................................................................................... 3 II.B. PROGRAM.................................................................................................................................................... 5 II.B.1 Objectives............................................................................................................................................... 5 II.B.2 Sample Collection and Analysis............................................................................................................ 5 II.B.3 Data Interpretation................................................................................................................................ 9 II.B.4 Program Exceptions............................................................................................................................. 10 II.B.5 Program Changes................................................................................................................................ 10 II.C. RESULTS AND DISCUSSIONS................................................................................................................. 11 II.C.1 Aquatic Environment........................................................................................................................... 11 II.C.1.a Surface and Drinking Water............................................................................................................ 11 II.C.1.b Aquatic Organisms............................................................................................................................ 12 II.C.1.c Shoreline Sediment............................................................................................................................ 13 II.C.2 Atmospheric Environment.................................................................................................................. 13 II.C.2.a Air Particulate Filters....................................................................................................................... 13 II.C.2.b Air Iodine.......................................................................................................................................... 14 II.C.3 Terrestrial Environment.................................................................................................................... 15 II.C.3.a Vegetation.......................................................................................................................................... 15 II.C.3.b Milk.................................................................................................................................................... 15 II.C.4 Direct Radiation................................................................................................................................... 16 II.D. CONCLUSION............................................................................................................................................. 17 V. REFERENCES........................................................................................................................21 APPENDIX A Sample Locations for the REMP.....................................................................23 APPENDIX B Analysis Results for the REMP........................................................................36 APPENDIX C Quality Assurance Program..............................................................................59 APPENDIX D Land Use Survey................................................................................................91 APPENDIX E Annual Radiological Groundwater Protection Program Report...................94

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 ii LIST OF FIGURES Figure Title Page A-1 Peach Bottom Atomic Power Station Sample Locations Within 1 mile...........................27 A-2 Peach Bottom Atomic Power Station Sample Locations Between 1 and 5 miles.............28 A-3 Peach Bottom Atomic Power Station Sample Locations Greater than 5 miles.................29 A-4 Gross Beta in Public Water for the Last Ten Years...........................................................30 A-5 Gross Beta in Air for the Last Ten Years..........................................................................31 A-6 Annual Trending of Air Activity (Gross Beta)..................................................................32 A-7 2022 Monthly Gross Beta Concentrations in Drinking Water, (4L).................................33 A-8 2022 Weekly Gross Beta Concentrations in Air Particulate Samples from Co-Located Air samplers.............................................................................................................................34 A-9 2022 Annual Normalized Ambient Radiation Results from Dosimeters Collected in the Vicinity of PBAPS.............................................................................................................35 D-1 Peach Bottom Atomic Power Station................................................................................93 E-2 Well Water Locations, Peach Bottom Atomic Power Station, 2022...............................109 E-3 Radiological Groundwater Protection Program Monitoring Locations, Peach Bottom Atomic Power Station, 2022............................................................................................110 E-4 Routine Precipitation Sample Locations for the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2022.....................................................111

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 iii LIST OF TABLES Table Title Page 1

Synopsis of 2022. Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program.............................................................................................................18 2

Annual Summary of Radioactivity in the Environs of the Peach Bottom Atomic Power Station...................................................................................................................................20 A-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2022.................25 A-2 Radiological Environmental Monitoring Program - OSLD Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2022.................26 B-1 Concentration of Tritium, Gamma Emitters and Gross Beta in Surface and Drinking Water

..............................................................................................................................................38 B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish...........................................40 B-3 Concentration of Gamma Emitters in Sediment..................................................................41 B-4 Concentration of Iodine-131 in Filtered Air........................................................................42 B-5 Concentration of Beta Emitters in Air Particulates..............................................................45 B-6 Concentration of Gamma Emitters in Air Particulates.........................................................48 B-7 Concentration of Gamma Emitters in Vegetation Samples.................................................49 B-8 Concentration of Gamma Emitters (including I-131) in Milk.............................................51 B-9 Typical MDA Ranges for Gamma Spectrometry..................................................................55 B-10 Typical LLDs for Gamma Spectrometry..............................................................................56 B-11 Quarterly DLR Results for Peach Bottom Atomic Power Station, 2022..............................57 B-12 Annual DLR Results for Peach Bottom Atomic Power Station, 2022..................................58 C-1 Results of Participation in Cross Check Programs...............................................................63 C-2 Results of Quality Assurance Program................................................................................69 C-2a Results of Quality Assurance Program Co-Located Air Samplers......................................84 C-2b Results of Quality Assurance Program Co-Located Air Samplers......................................87 C-2c Results of Quality Assurance Program 4L Analyzed by Primary and QC Laboratories.....89 C-3 Peach Bottom Atomic Power Station ODCM Required LLDs............................................90 D-1 Land Use Survey..................................................................................................................91 E-1 Locations of Onsite Radiological Groundwater Protection Program - Peach Bottom Atomic Power Station, 2022..............................................................................................108 E-5 Hard to Detects in Groundwater..........................................................................................112 E-6 Concentration of Radiostrontium in Groundwater..............................................................113 E-7 Alpha Isotopic and Transuranics in Groundwater...............................................................114 E-8 Gross Alpha Activity in Groundwater.................................................................................115 E-9 Concentration of Tritium in Groundwater...........................................................................116 E-10 Concentration of Tritium in Precipitation, and Subsurface Drainage................................117 E-11 Gross Concentration of Gamma Emitters in Groundwater, and Subsurface Drainage......118

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 1

I. EXECUTIVE

SUMMARY

Executive Summary The 2022 Annual Radiological Environmental Operating Report (AREOR) describes the results of the Radiological Environmental Monitoring Program (REMP) conducted for Peach Bottom Atomic Power Station (PBAPS) by Constellation Nuclear and covers the period of 1 January 2022 through 31 December 2022. Throughout that time period, 1,567 analyses were performed on 1,247 samples. In assessing all the data gathered for this report and comparing the results with preoperational data, it was evident that the operation of PBAPS had no adverse radiological impact on the environment.

The various media collected in the REMP include aquatic, terrestrial, airborne, and ambient radiation. The corresponding analyses performed on the collected specimen were:

Aquatic:

Surface water samples were analyzed for concentrations of Iodine-131 (I-131), tritium (H-3) and gamma emitting nuclides. All nuclides were below minimum detectable activity.

Drinking water samples were analyzed for concentrations of gross beta, I-131, H-3, and gamma emitting nuclides. There was no tritium detected above the required lower limit of detection (LLD) of 200 pCi/L. Gross beta activity was detected, but not above the required LLD of 4 pCi/L and was likely due to background radiation. All other nuclides were below minimum detectable activity.

Fish and sediment samples were analyzed for concentrations of gamma emitting nuclides. All nuclides were below minimum detectable activity.

Terrestrial:

Milk samples were analyzed for low level concentrations of I-131 and gamma emitting nuclides. Food product samples were analyzed for concentrations of gamma emitting nuclides. All nuclides were below minimum detectable activity.

Airborne:

Air particulates and air iodine samples were analyzed for gross beta, gamma emitting nuclides, and low level I-131. All nuclides were below minimum detectable activity.

The gross beta results were less than the investigation level (1.60E-01 pCi/m3) and there were no notable differences between control and indicator locations.

Ambient Radiation:

Ambient gamma radiation levels were measured quarterly. There were no detectable ambient gamma radiation levels to the members of the public at offsite locations, indicating no impact from plant operations. The nearest resident to the ISFSI saw no detectable ambient gamma radiation levels, therefore ISFSI operations did not have an impact to members of the public.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 2

In 2022, the doses from both liquid and gaseous effluents were conservatively calculated for the Maximum Exposed Member of the Public due to PBAPS Operation. Doses calculated were well below all Offsite Dose Calculations Manual (ODCM) limits. The results of those calculations were as follows:

Radiological Impact on Man

%gt Estimated Applicable Effluent Applicable Organ Dose Limit Limit Unit Noble Gas Gamma - Air Dose 9.02E-03 4.Sl E-02 2.00E+Ol mrad Noble Gas Beta - Air Dose 6.27E-03 1.57E-02 4.00E+Ol mrad Noble Gas Total Body 8.72E-03 8.72E-02 1.00E+Ol mrem (gamma)

Noble Gas Skin (Beta) 1.l SE-02 3.84E-02 3.00E+Ol mrem Gaseous Iodine, Particulate, Bone 1.43E-01 Carbon-: 4 & Trit ium 4.77E-01 3.00E+Ol mrem Gaseous Iodine, Particulate &

Thyroid 2.0lE-03 Tritium 6.70E-03 3.00E+Ol mrem Liquid Total Body 2.94E-04 4.90E-03 6.00E+OO mrem (gamma)

Liquid GI-LU 3.08E-04 1.54E-03 2.00E+Ol mrem Direct Radiation Total Body 0

O.OOE+OO 2.SOE+Ol mrem 40 CFR 190 Doses 40 CFR 190 Applicable

%gt Estimated Applicable Organ Dose Limit Limit Unit Total Body 3.89E-02 1.56E-01 2.SOE+Ol mrem Thyroid 3.08E-02 4.llE-02 7.SOE+Ol mrem Other Organ 1.56E-01 6.23E-01 2.SOE+Ol mrem ODCM 3.8.D.1.d and e.

Total Body 3.89E-02 1.30E+OO 3.00E+OO mrem Other Organ 1.56E-01 5.20E+OO 3.00E+OO mrem Thyroid 3.08E-02 5.60E-02 5.SOE+Ol mrem

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 3

II. PEACH BOTTOM ATOMIC POWER STATION RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM II.A. INTRODUCTION PBAPS is located along the Susquehanna River between Holtwood and Conowingo Dams in Peach Bottom Township, York County, Pennsylvania. PBAPS Units 2 and 3 are boiling water reactors, each with a rated full-power output of approximately 4,016 MWth while Unit 1 is a decommissioned 115 MWth High Temperature, Gas-cooled Reactor (HTGR). The initial environmental monitoring program began 5 February 1966. A summary of the Unit 1 preoperational monitoring program was presented in a previous report (1). Preoperational summary reports (2,3) for Units 2 and 3 have been previously issued and summarize the results of all analyses performed on samples collected from 5 February 1966 through 8 August 1973.

The sampling and analysis requirements are contained in the PBAPS ODCM and the ODCM Specifications (ODCMS). This AREOR covers those analyses performed by Teledyne Brown Engineering (TBE), Landauer, Constellation Generation Solutions (CGS) and GEL Laboratories on samples collected during the period 01 January 2022 through 31 December 2022.

As the REMP is established to measure the impact of power plant operations (release of radionuclides) on man and the environment; it is important to understand radiation/radioactivity, the units used to measure them, and natural sources of radiation in the environment. A brief explanation is provided to differentiate between radiation from nuclear power production and other sources, be they man-made or natural. The doses produced from the other sources of radiation can be compared to the data presented in this report.

A. Radiation and Radioactivity All matter is made of atoms. An atom is the smallest part into which matter can be broken down and still maintain all its chemical properties. Nuclear radiation is energy, in the form of waves or particles that is given off by unstable, radioactive atoms. Radioactive material exists naturally and has always been a part of our environment. The earth's crust, for example, contains radioactive uranium, radium, thorium and potassium. Some radioactivity is a result of nuclear weapons testing. Examples of radioactive fallout that is normally present in environmental samples are cesium-137 (Cs-137) and strontium-90 (Sr-90). Some examples of radioactive materials released from a nuclear power plant are Cs-137, I-131, Sr-90 and cobalt-60 (Co-60).

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 4

Radiation is measured in units of millirem (mrem); much like temperature is measured in degrees. A millirem is a measure of the biological effect of the energy deposited in tissue. The natural and man-made radiation dose received in one year by the average American is 300 to 400 mrem (References 5, 6, 7 in Table 1 below). Radioactivity is measured in curies. A curie is that amount of radioactive material needed to produce 3.70E+10 nuclear disintegrations per second. This is an extremely large amount of radioactivity in comparison to environmental radioactivity. That is why radioactivity in the environment is measured in picocuries. One picocurie is equal to 1.00E-12 (one trillionth) of a curie.

B. Sources of Radiation As mentioned previously, naturally occurring radioactivity has always been a part of our environment. Table 1 shows the typical doses received from natural and man-made sources.

Table 1 Radiation Sources and Corresponding Doses (4)

NATURAL MAN-MADE Source Radiation Dose (mrem/yr)

Source Radiation Dose (mrem/yr)

Internal, inhalation (5) 228 Medical (6) 300 External, space 33 Consumer (7) 13 Internal, ingestion 29 Industrial(8) 0.3 External, terrestrial 21 Occupational 0.5 Weapons Fallout

<1 Nuclear Power Plants

<1 Approximate Total 311 Approximate Total 314 Cosmic radiation from the sun and outer space penetrates the earth's atmosphere and continuously bombards us with rays and charged particles. Some of this cosmic radiation interacts with gases and particles in the atmosphere, making them radioactive in turn. These radioactive byproducts from cosmic ray bombardment are referred to as cosmogenic radionuclides. Isotopes such as beryllium-7 (Be-7) and carbon-14 (C-14) are formed in this way. Exposure to cosmic and cosmogenic sources of radioactivity results in a dose of 33 mrem/yr.

Additionally, natural radioactivity is in our body, in the food we eat (about 29 mrem/yr), in the ground we walk on (about 21 mrem/yr), and in the air we breathe (about 228 mrem/yr). One percent of all potassium in nature is the radioactive potassium-40 (K-40). The majority of a person's annual dose results from exposure to radon and thoron in the air we breathe. These gases and their radioactive decay products arise from the decay of naturally occurring uranium, thorium and radium in soil and in building products such as brick, stone and concrete. Radon and thoron levels vary greatly with location, primarily due to

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 5

changes in the concentration of uranium and thorium in the soil. Residents at some locations in Colorado, New York, Pennsylvania, and New Jersey have a higher annual dose as a result of higher levels of radon/thoron gases in these areas. In total, these various sources of naturally occurring radiation and radioactivity contribute to a total dose of about 311 mrem/yr.

In addition to natural radiation, we are normally exposed to radiation from a number of man-made sources. The single largest dose from man-made sources result from therapeutic and diagnostic applications of x-rays and radio-pharmaceuticals. The annual dose to an individual in the U.S. from medical and dental exposure is about 300 mrem. Consumer products, such as televisions and smoke detectors, contribute about 13 mrem/yr. Much smaller doses result from weapons fallout and nuclear power plants (less than 1 mrem/yr). Typically, the average person in the United States receives about 314 mrem/yr from man-made sources.

Some of the natural radioactive nuclides discussed above were identified in PBAPS REMP samples. The typical power production radionuclides, described in the next sections, were not identified and thus it can be concluded that PBAPS did not impact man and the environs during the 2022 operating period.

II.B. PROGRAM II.B.1 Objectives A. Objective of the REMP

1. Provide data on measurable levels of radiation and radioactive materials in the site environs;

2. Validate the radioactive effluent control program by evaluating the relationship between quantities of radioactive material released from the plant and resultant radiation doses to individuals from principal pathways of exposure.

B. Implementation of the Objectives

1. Identifying significant exposure pathways

2. Establishing baseline radiological data of media within those pathways

3. Continuously monitoring those media before and during station operation to assess station radiological effects (if any) on man and the environment II.B.2 Sample Collection and Analysis Samples for the PBAPS REMP were collected for Constellation Nuclear by contractors to, or personnel of, CGS according to applicable procedures (Ref 13,19,20). Control locations are

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 6

sample locations that are not expected to be impacted by plant operations and are used to determine a baseline in the environment for each type of sample. This section describes the general collection methods used to obtain environmental samples for the PBAPS REMP in 2022.

The locations of the individual sampling stations are listed in Table A-1 and A-2 and shown in Figures A-1, A-2, and A-3.

Analyses are performed in accordance with applicable procedures (Ref 14,17,18,20) and results are provided in Appendix B for primary REMP Analysis. Analysis results for quality assurance are provided in Appendix C. Analysis results for PBAPS RGPP are provided in Appendix E.

All Samples were collected and analyzed as required except as noted in section II.B.4 Program exceptions.

II.B.2.a Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, drinking water, fish and sediment. Surface water is sampled from two locations as prescribed by the ODCM: one upstream (1LL) and one downstream (1MM) of the plant discharge canal. Drinking water is sampled from a control location (6I) and up to 3 locations nearest to public drinking water supplies. Two locations are identified in the ODCM as the closest drinking water supplies, the Conowingo Dam (4L) and Chester Water Authority (13B). All samples were collected weekly by automatic sampling equipment or as grab samples. Weekly samples from each location were composited into two one-gallon monthly samples for analysis. A separate quarterly composite of the monthly samples was also collected.

Fish sample collection locations required by the ODCM are in an area close to the discharge of PBAPS (4) and a control location, unaffected by plant discharge (6). These samples were comprised of the flesh of commercially and recreationally important species specific to the environs around PBAPS. Fish samples were collected semiannually from two groups:

Bottom Feeder (channel catfish, flathead catfish and carp) and Predator (smallmouth and hybrid striped bass), as these are the types of fish commonly collected by the public from the river around PBAPS. The total weight of fish flesh was approximately 1000 grams. The samples were preserved on ice for shipping to the laboratory.

The ODCM requires one sediment sample to be collected downstream of the plant in an area with existing or potential recreational value. The REMP collects samples from three locations (4J, 4T and 6F; 6F is the control). Sediment samples, composed of recently deposited substrate, were collected semiannually. Multiple grab samples of the sediment were collected to obtain an approximately homogenous, representative sample totaling 1000 grams.

II.B.2.b Atmospheric Environment The airborne atmospheric environment was evaluated by performing radiological analyses on air particulate and radioiodine samples. The ODCM requires sampling from five

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 7

locations, including three site boundary locations with greatest dose impact, one location within a local community with the highest dose impact, and one control location. Air particulate and radioiodine samples were collected and analyzed weekly from five locations (1B, 1C, 1Z/1A, 3A and 5H2; 5H2 is the control, 1A is the duplicate QA location). Airborne iodine and particulate samples were obtained at each location using a vacuum pump to pull air through a glass fiber filter and charcoal cartridge. The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute to obtain a minimum total volume of 280 cubic meters. The weekly filters were composited for a quarterly sample.

II.B.2.c Terrestrial Environment The terrestrial environment was evaluated by performing radiological analyses on milk and food product samples. The ODCM requires milk samples at three locations with the highest dose potential, within three miles of PBAPS and one sample at a control location. The REMP meets these requirements and samples extra locations.

Milk samples were collected biweekly at five locations (J, R, S, X and V; V is the control) from April through November, when the cows were on pasture, and monthly from December through March, when the cows were primarily on feed. Six additional locations (C, D, E, P, W and Y; C and E are the controls) were sampled quarterly. Two-gallon samples were collected directly from the bulk tank at each location, preserved with sodium bisulfite, and shipped promptly to the laboratory.

The ODCM requires food products to be collected from the area of highest dose impact and a control location if milk sampling is unavailable in those locations. Milk sampling occurs in most every sector, except for SSE, S and WSW, where gardens are established for sampling.

Food product samples, comprised of annual broad green leaf vegetation, were collected monthly at four locations (1C, 2Q, 3Q and 55; 55 is the control) from June through September. Typically, the planting season starts late April/early May, with the plants gaining sufficient mass for collection in late June or July. Approximately 1000 g of unwashed samples were collected in plastic bags and shipped promptly to the laboratory, but sample size varied on garden production.

II.B.2.d Ambient Gamma Radiation The ambient gamma radiation in the areas surrounding PBAPS is measured using dosimeters, which are exposed to ambient radiation in the field and exchanged quarterly.

The ODCM requires at least 40 routine monitoring stations with two or more dosimeters at each location for continuous monitoring. The REMP contains 48 dosimeter monitoring locations.

Optically-Stimulated Luminescent Dosimeters (OSLD) replaced the Thermo-Luminescent Dosimeter (TLD) starting in 2012. However, PBAPS continued using TLD in addition to OSLD to compare the two technologies, although only the OSLD data is reported. TLD field deployment was discontinued in 2021.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 8

The OSLD locations were placed on and around the PBAPS site as follows:

Site boundary monitoring consists of 19 locations (1A, 1B, 1C, 1D, 1E, 1F, 1G, 1H, 1I, 1J, 1K, 1L, 1M, 1NN, 1P, 1Q, 1R, 2, and 40), near and within the site perimeter representing fence post doses (i.e., at locations where the doses will be potentially greater than maximum annual off-site doses).

Intermediate distance monitoring consists of 23 locations (14, 15, 17, 22, 23, 26, 27, 31A, 32, 3A, 42, 43, 44, 45, 46, 47, 48, 49, 4K, 5, 50, 51 and 6B), extending to approximately 5 miles from the site and designed to measure possible exposures to close-in population.

Six locations (16, 18, 19, 24, 2B and 1T) represent control and special interests areas such as population centers, schools, and nearest residents.

The specific dosimeter locations were determined by the following criteria:

1. The presence of relatively dense population, nearby residences, schools, and control locations; Site meteorological data taking into account distance and elevation for each of the sixteen 22.5 degree sectors around the site, where estimated annual dose from PBAPS, if any, would be more significant;

2. And on hills free from local obstructions and within sight of the vents (where practical).

Each dosimetry location in the environment has 2 OSLD type dosimeters which were enclosed in plastic as a moisture barrier. Dosimeter housing are mesh plastic tubes, aligned horizontally and oriented such that dosimeter windows face the plant. Dosimeters themselves were placed vertically in the tubes so that no dosimeter was covered by another dosimeter and all dosimeters properly faced the plant.

II.B.2.e Independent Spent Fuel Storage Installation (ISFSI)

ISFSI was initiated in June 2000. Site boundary OSLDs which measure the ambient gamma radiation closest to ISFSI are locations 1A, 1D, 1M, 1P, 1Q, 1R, with 1R being the closest. Location 2B is the nearest real resident which could be impacted by ISFSI.

Location 2B, follows closely with values from locations 1A, 1D and controls, indicating no impact from the ISFSI on the nearest real resident. Data from location 2B is used to demonstrate compliance to both 40CFR190 and 10CFR72.104 limits. All radiation levels are well below regulatory limits.

In 2019, a six year data set (2012-2018) was used to determine the background dose at each location. In 2022, there was no detectable facility-related dose at any location.

Detectable facility-related dose at 1R in the 3Q of 2019 (6.4 mrem/std. qtr), lead to detectable annual facility-related dose (15.5 mrem/yr). This was the first time PB reported facility-related dose due to ISFSI, which was expected due to the increasing trends seen at 1R over the years.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 9

Also in 2019, the ISFSI pad was filled with its last TN-68 cask. Construction began in 2020 on a second ISFSI pad which was loaded with Holtec casks. Facility-related dose is expected to increase due to the second ISFSI pad, but still remain below the 40CFR190 and 10CFR72.104 limits. In 2022, five (5) spent fuel casks were generated and placed on the pad. No Facility related dose was detected by the OSLDs deployed to monitor the ambient radiation around the ISFSI.

II.B.3 Data Interpretation The radiological environmental and direct radiation data collected prior to PBAPS becoming operational was used as a baseline with which the 2022 operational data were compared. In addition, data were compared to previous years operational data for consistency and trending. Several factors are important in the interpretation of the data.

1. Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is defined as the smallest concentration of radioactive material in a sample that would yield a net count (above background) that would be detected with only a 5% probability of falsely concluding that a blank observation represents a "real" signal. The LLD is intended as a before-the-fact (a priori) estimate of a system (including instrumentation, procedure and sample type) and not as an after-the-fact (a posteriori) measurement. All analyses are designed to achieve the required detection limits for environmental samples, as described in the PBAPS ODCM.

The minimum detectable concentration or activity (MDC or MDA) is defined as the after-the-fact (a posteriori) estimate determined during the analysis of the sample.

2. Net Activity Calculation and Reporting of Results Net activity for a sample is calculated by subtracting background activity from the sample activity. Since the REMP measures extremely small changes in radioactivity in the environment, background variations can result in sample activity being lower than the background activity causing a negative number. MDA is reported in all cases where positive activity was not detected. In previous years, when net activity was reported, a lower baseline is seen in trending when compared to 2022 results.

Gamma spectroscopy results for each type of sample were grouped as follows:

For surface and drinking water, twelve nuclides, manganese-54 (Mn-54), cobalt-58 (Co-58), iron-59 (Fe-59), cobalt-60 (Co-60), zinc-65 (Zn-65), niobium-95 (Nb-95), zirconium-95 (Zr-95), I-131, cesium-134 (Cs-134), Cs-137, barium-140 (Ba-140), and lanthanum-140 (La-140) were reported.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 10

For fish, eight nuclides, K-40, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Cs-134 and Cs-137 were reported.

For sediment, six nuclides, K-40, Mn-54, Co-58, Co-60, Cs-134 and Cs-137 were reported.

For air particulates, six nuclides, Be-7, Mn-54, Co-58, Co-60, Cs-134 and Cs-137 were reported.

For milk, six nuclides, K-40, I-131, Cs-134, Cs-137, Ba-140 and La-140 were reported.

For food products, eight nuclides, Be-7, K-40, Mn-54, Co-58, Co-60, I-131, Cs-134 and Cs-137 were reported.

Positive activity values (greater than MDA) were recorded and the mean and two standard deviation of the results were calculated. The standard deviation represents the variability of measured results for different samples of the same media rather than a single analysis uncertainty.

II.B.4 Program Exceptions For 2022 the PBAPS REMP had a sample recovery rate of greater than 99%. Program exceptions are listed below:

1. An exception was recorded for a fish sample collected from Location 6 between 06/04/2022 and 06/05/2022. It was determined that the sample was lost in shipping and never reached the laboratory for analysis. The REMP program allows this type of deviation and there were no other such losses in 2022.

2. An exception was recorded for a lost air sample at location 3A for the week ending 08/11/2022. It was observed that the GFCI switch on the power outlet had blown possibly due to storms that occurred on 08/04/2022. The run time could not be accurately determined and was invalidated for reporting.

Each program exception was reviewed to understand the causes of the program exception. The occasional equipment breakdowns were unavoidable. The overall sample recovery rate indicates that the appropriate procedures and equipment were in place to assure reliable program implementation.

II.B.5 Program Changes A dosimeter was moved at Station Code 42 from 21,600ft to 21,500ft due to the property being demolished. There were no other program changes in 2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 11

II.C. RESULTS AND DISCUSSIONS All the environmental samples collected during the year were analyzed using CGS laboratory procedures CY-ES-205 and CY-ES-206, except Tritium which was analyzed by GEL Laboratories (GL-RAD-A-002 REV# 24), in accordance with analytical method EPA 906.0 Modified, and Dosimetry analysis performed by Landauer. Table 1 is a Synopsis of the 2022 Radiological Environmental Monitoring Program samples and types of analyses performed. The analytical results for this reporting period are presented in Appendix B and radioactivity in the Environs of the PBAPS are also summarized in Table 2 as required by NUREG 1302 Branch Technical Position Paper (9) Table 3. For discussion, the analytical results are divided into four categories. The categories are Aquatic Environment, Atmospheric Environment, Terrestrial Environment, and Direct Radiation. These categories are further divided into subcategories according to sample type (e.g. Surface Water/Drinking Water and Aquatic Organisms for Aquatic Environment).

II.C.1 Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, drinking water, fish, and sediment.

II.C.1.a Surface and Drinking Water

1. Surface Water A summary of the 2022 analysis results for surface water samples from stations 1LL and 1MM are listed below:

Tritium Quarterly samples were analyzed for tritium activity. No tritium activity was detected and the required LLD was met.

(Table B-1, Appendix B)

Iodine Monthly samples were analyzed for low level I-131. I-131 is a gamma emitter that is analyzed separately to achieve a low level of detection. All results were less than the MDA and the required LLD was met. (Table B-1, Appendix B)

Gamma Spectrometry Monthly samples were analyzed for gamma emitting nuclides. All nuclides were less than the MDA and all required LLDs were met. (Table B-1, Appendix B)

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 12

2. Drinking Water The results from the drinking water samples collected in 2022 from indicator locations 13B and 4L as well as control location, 6I are described below:

Gross Beta Samples from all locations were analyzed monthly for concentrations of gross beta activity (Table B-1, Appendix B and Figure A-7 Appendix A). Gross beta activity was detected in all 36 samples. The values ranged from 1.07 to 7.32 pCi/L with a mean value of 2.42 +/- 0.76 pCi/L for indicator locations. For the control location, the values ranged from 1.22-2.41 pCi/L with a mean value of 1.89 +/- 0.77 pCi/L which is less than the required LLD (4 pCi/L) and indicates that the measurement technique was even more sensitive than required. The detectable gross beta activity was well below the procedural investigation level (15 pCi/L). Concentrations detected were generally below those detected in previous years.

Tritium Monthly samples were composited quarterly and analyzed for tritium activity. No tritium activity was detected in any of the 12 samples. All samples measured less than the required MDA (200 pCi/L) and the required LLD was met. (Table B-1, Appendix B)

Iodine Monthly samples were analyzed for low level I-131. I-131 is a gamma emitter that is analyzed separately to achieve a low level of detection. All results were less than the MDA and the required LLD was met. (Table B-1, Appendix B)

Gamma Spectrometry Samples from the three locations were analyzed monthly for gamma emitting nuclides. All nuclides were less than the MDA and all required LLDs were met.

(Table B-1, Appendix B)

A Radiological Groundwater Protection Program (RGPP) was established in 2006 as part of a Constellation Nuclear (Exelon) fleetwide assessment of potential groundwater intrusion from the operation of the Station. Results and Discussion of groundwater samples are covered in Appendix E.

II.C.1.b Aquatic Organisms The edible portions of Fish (predator and bottom feeder) samples collected from locations 4 and 6 in 2022 were analyzed for concentrations of gamma-emitting nuclides. There is a program exception for one sample from Location 6 collected in June of 2022. The sample was determined

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 13

to be lost in transit and never reached the lab for analysis and is discussed in Section II.B.4 Program Exceptions. For all samples analyzed, naturally occurring K-40 was found at all stations and ranged from 2,824 to 3,304 pCi/kg (wet), with a mean value of 3,076 +/- 235 pCi/kg (wet), consistent with levels detected in previous years. No fission or activation products, due to plant operations were found in 2022 and all required LLDs were met Table B-2, presents the non-natural gamma radionuclide results for locations 4 and 6, based on the type of fish collected. All sample results were less than the nuclide-specific MDAs and LLD requirements were met. There have been no detectable levels of Cs-137 in fish since 1983.

II.C.1.c Sediment Sediment samples were collected at locations 6F, 4J, and 4T and analyzed for concentrations of gamma-emitting nuclides. No plant related fission or activation products were found in sediment and all LLDs were met. Results are presented in Table B-3, Appendix B.

Naturally occurring K-40 was found in all locations and ranged from 10,470 to 22,150 pCi/kg (dry) with a mean value of 13,587 +/- 1,197 pCi/kg (dry).

II.C.2 Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulate and airborne iodine. Airborne iodine and particulate samples were collected and analyzed weekly at five locations (1B, 1C, 1Z/1A, 3A, and 5H2). The control location was 5H2.

Airborne iodine and particulate samples were obtained at each location, using a vacuum pump with charcoal and glass fiber filters attached. The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The filters were replaced weekly and sent to the laboratory for analysis.

II.C.2.a Air Particulate Filters Continuous air particulate samples were collected from five locations. The five locations were separated into three groups: Group I represents locations within the PBAPS site boundary (1B, 1C and 1Z/1A), Group II represents the location of the closest local community (3A) and Group III represents the control location at a remote distance from PBAPS (5H2).

Detectable gross beta activity was observed at all locations. Onsite results, Group I, ranged from 1.21E-2 to 5.97E-2 pCi/m3, with a mean of 2.87E-2 +/- 0.25E-2 pCi/m3. The results from local community, Group II, ranged from 1.23E-2 to 7.0E-2 pCi/m3 with a mean of 3.2E-2 +/-

0.28E-2 pCi/m3. The control, Group III, results ranged from 1.3E-2 to 5.1E-2 pCi/m3 with a mean of 2.83E-2 +/- 0.24-2 pCi/m3.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 14

The range of detectable results and mean value from all locations are generally within range of their 2 sigma errors, indicating the gross beta activity is not a result of the operation of PBAPS. As shown in Figure A-6, Appendix A, the control location data mirrors the individual on-site locations and community trends. In addition, a comparison of the 2022 air particulate data with historical data of the last 10 years is presented in Figure A-5, Appendix A, and supports this trend over the time.

Based on individual weekly comparisons, there was no statistical difference between the Control and Indicator radioactive particulate concentrations. The average for the control samples were 0.028 pCi/m3, and the average for the indicators were 0.031 pCi/m3 for the period of January to December 2022. Maximum weekly concentrations for each station were less than 0.060 pCi/m3. The community represented location, 3A, also showed an average of 0.032 pCi/m3 in 2022 with weekly measurements ranging from.012 to 0.070 pCi/m3. The results of these analyses are presented in Table B-5, Appendix B. All LLDs were met for samples successfully collected. There was one lost sample for the week of 08/11/2022 due to a loss of power causing that sample to be excluded from the report. The program exception is discussed in Section II.B.4 of this report.

The particulate filters from each sampling location were saved and a 13-week composite was made. These air particulate samples were then analyzed for concentrations of-gamma emitting nuclides. No fission or activation products were detected. The results of these analyses are listed in Tables B-6, Appendix B. Gross beta and cosmogenic, naturally occurring beryllium-7 (Be-7) were detected at levels consistent with those detected in previous years. All power production nuclides were less than the MDA and all required LLDs were met.

II.C.2.b Air Iodine High-sensitivity I-131 analyses were performed on weekly air samples. All results were less than the minimum detectable concentration.

Radioiodine cartridges are placed at five locations. These cartridges are changed and analyzed each week. These samples were analyzed for radioiodine species and exhibited no detectable concentrations of I-131 during the year and is consistent with historical trends. Table B-4 lists the sample collection period and if the sample successfully met MDA or if results were excluded.

There was one lost sample for the week of 08/11/2022 due to a loss of power causing that sample to be excluded from the report. The program exception is discussed in Section II.B.4 of this report.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 15

II.C.3 Terrestrial Environment

II.C.3.a Vegetation Broadleaf vegetation was collected monthly, during the growing season, at four locations (1C, 2Q, 3Q and 55). The control location was 55.

Throughout the growing season of 2022, 48 samples of various green leafy vegetation (Swiss chard, cabbage, collards, kale, broccoli, etc.) were collected and analyzed for concentrations of gamma emitting nuclides (Table B-7, Appendix B). The results are discussed below:

Gamma Spectrometry Naturally occurring Be-7 activity was found in 36 of 48 samples and ranged from 148 to 2,300 pCi/kg (wet), with a mean of 712 +/- 1,220 pCi/kg (wet). Also, naturally occurring K-40 activity was found in all samples and ranged from 1,248 to 8,258 pCi/kg (wet), with a mean of 4,205 +/- 312 pCi/kg (wet). All power production nuclides were less than the MDA and all required LLDs were met.

Data for Non Natural Gamma Emitters is given in Table B-7.

II.C.3.b Milk During 2022, 129 milk samples were collected and analyzed from the following locations: D, J, P, R, S, W, X, Y (indicators) and C, E, V (controls). The results are described below:

Iodine-131 Milk samples from all locations were analyzed for concentrations of I-131 (Tables B-8, Appendix B). All results were less than the MDA for I-131 and all required LLDs were met.

All results are less than the LLD (1 pCi/L) and much less than the reporting level (3 pCi/L).

Gamma Spectrometry Milk samples from all locations were analyzed for concentrations of gamma emitting nuclides (Table B-8, Appendix B). Naturally occurring K-40 was found in all samples and ranged from 1,074 to 3,033 pCi/l, with a mean value of 1404 +/- 125 pCi/L. All other nuclides were less than the MDA and all required LLDs were met.

There was no Cs-134 or Cs-137 detected in the milk samples collected in 2022. Samples were routinely counted to MDAs that are less than half the required LLDs to be conservative.

Cow milk samples were analyzed for concentrations of I-131 and gamma-emitting nuclides.

Concentrations of naturally-occurring K-40 were consistent with those detected in previous years. No fission or activation products were found. Gamma isotopic data is given in Table B-8.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 16

II.C.4 Direct Radiation Environmental ambient gamma radiation measurements were performed quarterly using Dosimeters of Legal Record (DLR). Levels detected were consistent with those observed in previous years and no facility-related dose was detected. A review of the dosimetry data for the nearest residence to the Independent Spent Fuel Storage Installation (ISFSI) indicates no direct dose was received.

Ambient Gamma Radiation Results of OSLD measurements are listed in Table B-11. In 2019, six years of OSLD data (2012-2018) were re-evaluated with the new methodology presented in Constellation Nuclear corporate procedure CY-AA-170-1001, in order to determine a background dose and baseline for each location in the REMP. Detectable Facility Dose is any normalized net dose above the sum of the normalized mean background dose and minimum differential dose (BQ/A + MDDQ/A) and is reported both quarterly and annually for each location. Only Quarterly and Annual Normalized Net Dose for each location is reported in Table B-11 and B-12 respectively. The net dose is calculated by subtracting a control transit dosimeter and extraneous dose rather than a control or background location dose. The net dose is normalized to a standard 91-day quarter rather than previously reported monthly doses. Figure A-9 displays the BA + MDDA for each location as a dash mark, and the annual normalized net dose is shown as a column graph. Any column above the dash mark, would indicate annual positive facility related dose. All locations showed no normalized net quarterly dose above the BA + MDDA, therefore, there is no detectable ambient gamma radiation to the members of the public due to PBAPS operations.

Independent Spent Fuel Storage Installation (ISFSI)

ISFSI was initiated in June 2000. Site boundary OSLDs which measure the ambient gamma radiation closest to ISFSI are locations 1A, 1D, 1M, 1P, 1Q, 1R, with 1R being the closest.

Location 2B is the nearest real resident which could be impacted by ISFSI. Location 2B, follows closely with values from locations 1A, 1D and controls, indicating no impact from ISFSI on nearest real resident. Data from location 2B is used to demonstrate compliance to both 40CFR190 and 10CFR72.104 limits. All radiation levels are well below regulatory limits.

In 2019, a six year data set (2012-2018) was used to determine the background dose at each location. In 2021, there was no detectable facility-related dose at any location. Detectable facility-related dose at 1R in the 3Q of 2019 (6.4 mrem/std. qtr), lead to detectable annual facility-related dose (15.5 mrem/yr). This was the first time PB reported facility-related dose due to ISFSI, which was expected due to the increasing trends seen at 1R over the years.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 17

Also in 2019, the ISFSI pad was filled with its last TN-68 cask. Construction began in 2020 on a second ISFSI pad which was loaded with Holtec casks. Facility-related dose is expected to increase due to the second ISFSI pad, but still remain below the 40CFR190 and 10CFR72.104 limits.

In 2022, five (5) spent fuel casks were generated and placed on the pad. No Facility related dose was detected by the OSLDs deployed to monitor the ambient radiation around the ISFSI.

II.D. CONCLUSION In assessing the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of The Peach Bottom Atomic Power Station had no adverse radiological impact on the environment.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 18

Table 1 Synopsis of 2022 Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program Sample Type Sampling Frequency1 Number of Locations Number Collected Analysis Analysis Frequency1 Number Analyzed Aquatic Environment Surface Water, Drinking Water MC 5

60 Gamma MC 60 Gross Beta MC 36 Tritium QC 20 Fish2 SA 2

8 Gamma SA 7

Shoreline Sediment SA 3

6 Gamma SA 6

Atmospheric Environment Air Iodine3 W

5 254 I-131 W

254 Air Particulates4 W

5 254 Gross Beta W

254 Gamma QC 20

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 19

Table 1 Synopsis of 2022 Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program Sample Type Sampling Frequency1 Number of Locations Number Collected Analysis Analysis Frequency1 Number Analyzed Terrestrial Environment Milk5 M/BW 5

105 Gamma M/BW 105 Q

6 24 Gamma Q

24 Vegetation6 M

4 48 Gamma M

48 Dosimetry Q

48 384 Direct Radiation Q

384 1 W=Weekly, BW=BiWeekly (15 days), M=Monthly (31 days), Q=Quarterly (92 days), SA=Semiannual, A=Annual, C=Composite 2 Twice during fishing season including at least four species 3 The collection device contains activated charcoal 4 Beta counting is performed >= 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> following filter change. Gamma spectroscopy performed on quarterly composite of weekly samples 5 Bi-Weekly during growing season.

6 Monthly during growing season. Samples include broad leaf vegetation

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 20

Table 2 Annual Summary of Radioactivity in the Environs of the Peach Bottom Atomic Power Station Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Lower Limit of Detection (LLD)

Indicator Locations Mean (F)/Range1 Location with Highest Annual Mean Name/Distance &

Direction2 Highest Annual Mean (F) / Range1 Control Locations Mean (F)/Range Aquatic Environment Surface Water, Drinking Water (pCi/L)

Gross Beta (36) 4 2.42 (24/24)

(1.07-7.32)

CWA Susquehanna Pumping Sta.

13B 4.1 km ESE 2.73 (12/12)

(1.33-7.32) 1.89 (12/12)

(1.22-2.41)

Atmospheric Environment Air Particulates (10-2 pCi/m3)

Gross Beta (254) 1.0 3.0 (204/204)

(1.2-7.0)

Delta, PA Sub. 3A 5.88 km SW 3.2 (51/51)

(1.2-7.0) 2.9 (51/51)

(1.3-5.1)

Dosimetry (mrem/91 days)

OSLD (384)

NA 22.2(368/368)

(12.2-35.6)

Transmission Line Hill/ISFSI Pad 1R 0.85 km SSE 33.6 (16/16)

(30.7 -35.6) 20.7 (16/16)

(13.7-27.2) 1 Mean and range based upon detectable measurements only. Fraction (F) of detectable measurements at specified location is indicated in parentheses 2 From the centerpoint of the containment building

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 21

V. REFERENCES

1.

Preoperational Environs Radioactivity Survey Summary Report, March 1960 through January 1966. (September 1967)

2. Interex Corporation, Peach Bottom Atomic Power Station Regional Environs Radiation Monitoring Program Preoperational Summary Report, Units 2 and 3, 5 February 1966 through 8 August 1973, June 1977, Natick, Massachusetts

3.

Radiation Management Corporation Publication, Peach Bottom Atomic Power Station Preoperational Radiological Monitoring Report for Unit 2 and 3, January 1974, Philadelphia, Pennsylvania

4. Information from NCRP Reports 160 and 94

5. Primarily from airborne radon and its radioactive progeny

6.

Includes CT (147 mrem), nuclear medicine (77 mrem), interventional fluoroscopy (43 mrem) and conventional radiography and fluoroscopy (33 mrem)

7.

Primarily from cigarette smoking (4.6 mrem), commercial air travel (3.4 mrem), building materials (3.5 mrem), and mining and agriculture (0.8 mrem)

8. Industrial, security, medical, educational, and research

9.

Offsite Dose Calculation Manual Guidance: Standard Radiological Effluent Controls for Boiling Water Reactors, Generic Letter 89-01, Supplement No. 1 (NUREG-1302), April 1991

10. American National Standards Institute/Health Physics Society, (ANSI/HPS) N13.37-2014, Environmental Dosimetry - Criteria for System Design and Implementation

11.

U.S. Nuclear Regulatory Commission, Regulatory Guide 4.13, Revision 2, Environmental Dosimetry - Performance, Specifications, Testing, and Data Analysis, June 2020

12. Code of Federal Regulations 40 CFR 190, Environmental Radiation Protection Standards for Nuclear Power Operations, 1977

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 22

13. Constellation Generation Solutions Sampling Procedures

a. CY-ES-214, Collection of RGPP Water Samples for Radiological Analysis

b. CY-ES-237, Air Iodine and Air Particulate Sample Collection for Radiological

c. CY-ES-239, EIS Collection Exchange of Field Dosimeters for Radiological Analysis

d. CY-ES-241, Vegetation Sample Collection for Radiological Analysis

e. CY-ES-242, Soil and Sediment Sample Collection for Radiological Analysis

f. CY-ES-247, Precipitation Sampling and Collection for Radiological Analysis

14. Constellation Generation Solutions Analytical Procedures

a. CY-ES-204, Sample Preparation for Gamma Analysis

b. CY-ES-205, Operation of HPGE Detectors with the Genie PC Counting System

c. CY-ES-206, Operation of the Tennelec S5E Proportional Counter

d. CY-ES-246, Sample Preparation for Gross Beta Analysis

15.

Peach Bottom Atomic Power Station 2022 Land use Survey

16. CY-AA-170-1000, Radiological Environmental Monitoring Program (REMP) and Meteorological Program Implementation.

17. Teledyne Browne Engineering, (TBE) 2018 Analysis Procedures Current Revisions

a. TBE-2001 Alpha Isotopic and Pu-241

b. TBE-2006 Iron-55 Activity in Various Matrices

c. TBE-2007 Gamma Emitting Radioisotope Analysis

d. TBE-2008 Gross Alpha and/or Gross Beta Activity in Various Matrices

d. TBE-2011 Tritium Analysis in Drinking Water by Liquid Scintillation

e. TBE-2013 Radionickel Activity in Various Matrices

f. TBE-2019 Radiostrontium Analysis by Ion Exchange

18. GEL Laboratory Procedures

a. GL-RAD-A-002 Tritium

b. GL-RAD-A-022 Ni-63

c. GL-RAD-A-004 Sr89/90, Liquid

d. GL-RAD-A-040 Fe-55

19. Normandeau Associates, Inc. (NAI) Sampling Procedures Current Revisions

a. Procedure No. ER2 Collection of Silt Samples for Radiological Analysis

b. Procecure No. ER3 Collection of Fish Samples for Radiological Analysis

20. Landauer Incorporated, Analysis procedure proprietary, Current Revision

21. Teledyne Browne Engineering Environmental Services, 4th Quarter 2022 Quality Assurance Report, January - December 2022

22. GEL 2022 Annual Environmental Quality Assurance Report for the Radiological Environmental Monitoring Program (REMP)

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 23

APPENDIX A Sample Locations for the REMP Appendix A contains information concerning the environmental samples which were collected during this operating period.

Sample locations and specific information about individual locations for the PBAPS are given in Table A-1 and A-2. Figure A-1 shows the Environmental Sampling Locations within 1 mile of the Peach Bottom Atomic Power Station. Figures A-2 shows the Environmental Sampling Locations Between 1 and 5 miles and A-3 shows the locations Greater than 5 miles from Peach Bottom Atomic Power Station.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 24

TABLE OF CONTENTS - SAMPLING LOCATIONS Table Title Page A-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2022.................... 25 A-2 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2022.................... 26 Figure Title Page A-1 Peach Bottom Atomic Power Station Sample Locations........................................................ 27 A-2 Peach Bottom Atomic Power Station Sample Locations........................................................ 28 A-3 Peach Bottom Atomic Power Station Sample Locations........................................................ 29 A-4 Gross Beta in Public Water for the Last Ten Years................................................................ 30 A-5 Gross Beta in Air for the Last Ten Years................................................................................ 31 A-6 Annual Trending of Air Activity (Gross Beta)....................................................................... 32 A-7 2022 Monthly Gross Beta Concentrations in Drinking Water, (4L)...................................... 33 A-8 2022 Weekly Gross Beta Concentrations in Air Particulate Samples from Co-Located Air samplers................................................................................................................................... 34 A-9 2022 Annual Normalized Ambient Radiation Results from Dosimeters Collected in the Vicinity of PBAPS.................................................................................................................. 35

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 25

TABLE A-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2022 Location Location Description Distance & Direction From Site A. Surface Water 1LL 1MM Peach Bottom Units 2 and 3 Intake - Composite (Control)

Peach Bottom Canal Discharge -Composite 1,200 feet ENE 5,500 feet SE B. Drinking (Potable) Water 4L 6I 13B Conowingo Dam EL 33' MSL - Composite Holtwood Dam Hydroelectric Station - Composite (Control)

Chester Water Authority (CWA) Susquehanna Pumping Station-Composite 45,900 feet SE 30,500 feet NW 13,300 feet ESE C. Fish 4

Conowingo Pond 6,000 - 10,000 feet SE 6

Holtwood Pond (Control) 50,000 - 70,000 feet NNW D. Sediment 4J 4T 6F Conowingo Pond near Berkins Run Conowingo Pond near Conowingo Dam Holtwood Dam (Control) 7,400 feet SE 41,800 feet SE 31,500 feet NW E. Air Particulate - Air Iodine 1B Weather Station #2 2,500 feet NW 1Z Weather Station #1 1,500 feet SE 1A Weather Station #1 1,500 feet SE 1C Peach Bottom South Sub Station 4,700 feet SSE 3A Delta, PA - Substation 19,300 feet SW 5H2 Manor Substation (Control) 162,400 feet NE F. Milk - bi-weekly / monthly J 5,100 feet W R 4,900 feet SW S 19,100 feet SE V (Control) 32,600 feet W X 9,500feet NW C

D E

P W

Y (Control)

(Control) 50,400 feet NW 18,500 feet NE 46,100 feet N 11,000 feet ENE 89,200 feet S 10,500 feet NE H. Food Products

1C 2Q 3Q 55

(Control) 4,700 feet SSE 9,200 feet SW 9,500 feet W 51,900 feet NE

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 26 TABLE A-2 Radiological Environmental Monitoring Program - OSLD Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2022 Location Location Description Environmental Dosimetry

OSLO Site Soundarv 1A 1B 1C 1D 1E 1F 1G 1H 11 1J 1K 1L 1M 1NN 1P 10 1R 2

2B*

40 lntennediate

~

11' 3A 4K 5

6B 14 15 17 22 23 26 27 31A 32 42 43 44 45 46 47 48 49 so 51 Control 16 18 19 24

'Nearest Residents Weather Station #1 Weather Station #2 Peacll Bottom Soulll Substation 140 o 5eclor Peacll Bottom 350* Sedor Hill Peach Bottom 200* Secior Holl Peacll Bottom North Substalion Peacll Bottom 210* Sedor Hill Peach Bottom Soulh S.Ubstalion Peacll Bottom 1so* Sedor Hill Peacll Bottom Site Area Peacll Bottom Unit 3 lrnlake Discharge Peach Bottom sne Tower B & C Fence Tower D & E Fenee Transmission Line HiVISFSI Pad Peacll Bottom 130* Seclor Hill Buo1c Property Peacll Bottom sne Are*a Lay Road/LLRWSF Detta, PA SUbstalion Conowingo Dam Power House Roof Wakefield, PA Hollwood Dam Power House Roof Peters Creek Silver Spring Rd Riveoviev, Rd Eagle Road Peacll Bottom 150" Sedor Hill Slab Road N. Cooper Road Eckman Rd Slale Hill Rd Muddy Run Environ. LaboralO<)'

~

Township School Goshen Mil Rd PB-Keeney Line Broad Creek Broad Creek Scout ca mp

~

Subslation PB-Coll~~!QQil Line TRANSCO Pumping Station Fin Substation Nottingham, PA Substalion (Control)

Fawn Grove, PA (Conlrol)

Red Lion, PA (Control}

HalTisvile, MD Subslation (Control)

Distance &

Direction from Site 1,500 feel SE 2,SOOfeel l>tW 4,700 feel SSE 3,500 feel SSE 3,000 feel NNW 2,900 feel SSW 3,100 feet WNW 3,200 feelW 2,900feel s 4,000feel s 4,700 feel SW 1,100 feet NE 5,400 feel SE 2,700 feet WSW 2,200 feel ESE 3,300 feel SE 2,800 feel SSE 4,700 feel SE 3,900 feel SSE 8,000 feel SW 3,100feetWNW 19,300 feel SW 45,900 feel SE 24,400 feel E 30,400 feet NW 10,300 feel E 19,300 feel N 21,500 feet ESE 12,500 feel NNE 5,500 feel SSE 21,800 feet NW 14,400 feel S 24,100 feel SE 14,400 feel ENE 21,500 feet Nl>tW 26,200 feel NNE 26,700 feel NE 18,500 feel ENE 23,800 feet SSE 22,700 feel s 26,500 feel SSW 21,500 feel WSW 26,400 feel w 21,000 feel WNW 67,100 feel E 52,200 feel w 124,000 feel WNW 58,200 feet ESE

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 27 Figure A-1 Peach Bottom Atomic Power Station Sample Locations Environmental Sampling Locations Within 1 mile of the Peach Bottom Atomic Power Station, 2022

+

w SE

\\

Sel'Y!Ot Layei Q-edi~f SOtJroes: Ed., HERE, Garmin. lnletmap, iraemef!I p Cot)),, G£BCO, USGS, FAQ, NPS, NRCAN, GeoBsse, IGN, Kada&er N I

n I

E

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 28 Figure A-2 Peach Bottom Atomic Power Station Sample Locations Environmental Sampling Locations Between 1 and 5 miles from the Peach Bottom Atomic Power Station, 2022 N

5 Mile Radius

\\,

~

J

..,.,.~

J NNE.\\

r 1,

w 5

~*-

Sc1vicc Layc.'f Crtitns Sou1ccs. E~r, UERE, G:11*rin, lnk.ornup 1ncn:m1.'fll P Corp., GEBCO, USGS, ~A:O, NPS, NRCAN, Goo&K\\ IGN, Kada5tc:1 N!.. 0.dnanw Sl.llVft)', £.ui J11P.,n, Ml:TI, l=sri Ch n:i !Hong Kena), swiMmlpO, Opan.~lff!C!:.\\41'p oontrib.ltOOI ~nd 1h11 G1s Ulla" Co<n--n161il)'

~

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 29 Figure A-3 Peach Bottom Atomic Power Station Sample Locations Environmental Sampling Locations Greater than 5 miles from the Peach Bottom Atomic Power Station, 2022 1isbi.sg w

p 1:111 ti HlJmm t.tor,,,,1 I,,.. *II" Balnmo,e s

61wM,n l d fl~IIJf*

I\\JnqL.hUI Ser.\\c,e LiywCtedi1'. SolscK. Ewi. HERE. Giltmln. !!Wrmap, lr.c:remeni PCorp., GEBCO. OSGS. FAO, NPS, NRCAN. Geo8i1&e. lGN, ~r NL Ordnance Sutv.11. Etti J illlloll\\ tlETI. Esri CNre, (~~:g'1'1J, SWl9$1QPQ. QO~$t:w!Mi!ip~. illnd lh9GI$ UW((l'Tlrrurity E

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 30 Figure A-4 Gross Beta in Public Water for the Last Ten Years 2013-2022

..J -

u

0.

10 5

0 2014

+ l 3B (I)

-+- 4L (I) 2016 2018 2020 2022 61 (C)

+ Cont rol monthly mean + Indicator monthly mean

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 31 Figure A-5 Gross Beta in Air Samples for 2022

[WEN1]

75 m

50 E --

~

0 01 / 22

+ 1 B (I)

.... 3A (I) 04/ 22

-+- 1 C (1)

...., 5H2 (C)

Indicator monthly mean 07 / 22 l 0/ 22 1 Z (I)

+ Control monthly mean

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 32 Figure A-6 Annual Trending of Air Activity (Gross Beta) 16 14 12 t 10 E

u

0 8 u

~

V C,

0 6

4 2

0 1/5/2022 Mean Weekly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of PBAPS, 2022 2/24/2022 4/15/2022 6/4/2022

--Group I (Indicators 18, lC, 12)

Group II (Indicator 3A)

--Group Ill (COntrol 5H2)

Investigate Level 16 pCi/m3 LLD1.0E-2p0/m3 7/24/2022 Calendar 9/12/2022 11/1/2022 12/21/2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 33 Figure A-7 2022 Monthly Gross Beta Concentrations in Drinking Water, (4L) Split between CGS and TBE w

5 -

w ir u

8 a:

16.00 14.00 12.00 10.00 8.00 6.00 4.00 2.00 0.00 2/2/22 3/2/22 4/2/22 5/2/22 6/2/22 7/2/22 8/2/22 CALENDAR

--CGS

--TBE

--CGSMDA

--TBE MDA LLD Value Investigation Level 9/2/22 10/2/22 11/2/22 12/2/22

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 34 Figure A-8 2022 Weekly Gross Beta Concentrations in Air Particulate Samples from Co-Located Air samplers 1Z and 1A Analyzed by CGS and TBE as 10-2pCi/m3

8.00 7.00 6.00 5.00

o. 4.00 N '..,

~

3.00 2.00 1.00 0.00 1/5/2022 2/24/2022 4/15/2022 6/4/2022 7/24/2022 calendar

-+-lZ(CGS) --lA(TBE) uo 9/12/2022 11/1/2022 12/21/2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 35 Figure A-9 2022 Annual Normalized Ambient Radiation Results from Dosimeters Collected in the Vicinity of PBAPS OSLD Results as mrem/year

mrem/yr 8

i;:

~

0

~

ll 2l I!!

0 I!;

P-TL0-14 I

P*TLD-15 I

I I

I P-TLO-16 I

I P-TLD-17 I

I I P-TLO-18 P-TL0.19 I

P-TLO-lA I

P*TLD-18 I

I P-TLO-lC I

I I

P-TL0-10 I

I P-TLO-lE I

P*TLD-1F I

P-TL0-1G I

P-TLO-IH I

P-TL0-11 I

z P-TLO-U I

0 3

I I

P-TL0-1K ij' P-TLO-IL I

0.

?:

P-TL0-1M I

i P-TLO-INN I

J P-TL0-1P P-TLO-IQ I

~ P-TL0-1R

j I

6 P-TLO-IT I

3 6'

i P-TL0-2 I

0 P-TL0-22 I

I

~

I';!

P*TLD-23 I

+

P-TL0-24 I

s:

~

P-TL0-26 I

3 P-TL0-27 I

iii P*TLD-28..

I

a.

P-TL0-31A I

P-TLD-32 I

P-TL0-3A I

P*TLD-40 I

P-TL0-42 I

P-TL0-43 I

P-TL0-44 I

I P*TLD-45 I

P-TL0-46 I

P-TL0-47 I

P-TL0-48 I

P-TL0-4~

I P-TL0-4K I

P-TLO-S I

P-TL0-50 I

P-TLO-SI I I I

P-TL0-68

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 36 APPENDIX B Analysis Results for the REMP Appendix B is a presentation of the analytical results for the Peach Bottom Atomic Power Station radiological environmental monitoring programs.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 37 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page B-1 Concentration of Tritium, Gamma Emitters and Gross Beta in Surface and Drinking Water..................................................................................................................................38 B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish.........................................40 B-3 Concentration of Gamma Emitters in Sediment................................................................41 B-4 Concentration of Iodine-131 in Filtered Air......................................................................42 B-5 Concentration of Beta Emitters in Air Particulates............................................................45 B-6 Concentration of Gamma Emitters in Air Particulates......................................................48 B-7 Concentration of Gamma Emitters in Vegetation Samples...............................................49 B-8 Concentration of Gamma Emitters (including I-131) in Milk...........................................51 B-9 Typical MDA Ranges for Gamma Spectrometry...............................................................55 B-10 Typical LLDs for Gamma Spectrometry............................................................................56 B-11 Quarterly DLR Results for Peach Bottom Atomic Power Station......................................57 B-12 Annual DLR Results for Peach Bottom Atomic Power Station.........................................58

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 38 Table B-1 Concentration of Gamma Emitters, Tritium, and Gross Beta in Surface and Drinking Water (Results in units of pCi/L +/- 2)

Sample Code Sample Date Gamma Emitters Tritium2 Gross Beta3 1LL 1 2/2/2022 ND Units 2 and 3 Intake 3/4/2022 ND Composite 3/30/2022

<119 ND 4/27/2022 ND 6/1/2022 ND 6/29/2022

<165 ND 7/27/2022 ND 8/31/2022 ND 9/28/2022

<155 ND 11/2/2022 ND 11/30/2022 ND 12/28/2022

<107 ND 1MM 2/2/2022 ND Canal Discharge 3/4/2022 ND Composite 3/30/2022

<122 ND 4/27/2022 ND 6/1/2022 ND 6/29/2022

<168 ND 7/27/2022 ND 8/31/2022 ND 9/28/2022

<152 ND 11/2/2022 ND 11/30/2022 ND 12/28/2022

<107 ND 4L 2/2/2022 1.10+/-0.72 Conowingo Dam 3/2/2022 1.60+/-0.77 Composite 3/31/2022

<125 1.91+/-0.79 4/28/2022 1.21+/-0.77 6/2/2022 1.83+/-0.75 6/29/2022

<169 1.51+/-0.79 7/28/2022 2.34+/-0.51 9/1/2022 5.76+/-0.44 9/29/2022

<153 2.41+/-0.81 11/3/2022 1.97+/-0.78 11/30/2022 2.62+/-0.77 12/29/2022

<94.2 1.07+/-0.66

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 39 Table B-1 Concentration of Gamma Emitters, Tritium, and Gross Beta in Surface and Drinking Water (Results in units of pCi/L +/- 2)

Sample Code Sample Date Gamma Emitters Tritium2 Gross Beta3 6I 1 2/2/2022 1.35+/-0.73 Holtwood Dam 3/2/2022 1.90+/-0.79 Hydroelectric Station 3/31/2022

<122 1.82+/-0.78 4/28/2022 1.49+/-0.79 6/2/2022 1.22+/-0.70 6/29/2022

<177 2.18+/-0.84 7/28/2022 2.15+/-0.79 9/1/2022 2.35+/-0.78 9/29/2022

<154 2.09+/-0.81 11/3/2022 2.41+/-0.81 11/30/2022 1.68+/-0.71 12/29/2022

<98.3 2.02+/-0.72

13B 1/31/22 1.77+/-0.77 Chester Water Authority 3/1/22 2.04+/-0.80 Composite 3/28/22

<124 1.69+/-0.77 4/25/22 3.81+/-0.94 5/31/22 1.33+/-0.71 6/27/22

<170 2.35+/-1.37 7/25/22 7.32+/-0.35 8/29/22 2.69+/-0.90 9/26/22

<156 2.29+/-0.80 10/31/22 1.99+/-0.78 11/28/22 2.95+/-0.79 12/27/22

<89.6 2.58+/-0.78 1 Control Location 2 Tritium result for the quarterly composite 3 ND, No Data, analysis not required

All Non-Natural Gamma Emitters <MDA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 40 Table B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish (Results in units of pCi/kg (wet) +/- 2)

Sample Code Sample Date Sample Type Gamma Emitters 4

6/10/2022 Bottom Feeder Fish Conowingo Pond 6/17/2022 Predator Fish 10/11/2022 Bottom Feeder Fish 10/11/2022 Predator Fish 61 Holtwood Pond 6/11/2022 Bottom Feeder Fish 2

6/11/2022 Predator Fish 9/27/2022 Bottom Feeder Fish 10/18/2022 Predator Fish 1 Control Location 2 Lost Sample

All Non-Natural Gamma Emitters <MDA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 41 Table B-3 Concentration of Gamma Emitters in Sediment (Results in units of pCi/kg (wet) +/- 2)

Sample Code Sample Date Gamma Emitters 4J 06/14/2022 Conowingo Pond 12/05/2022 near Berkins Run 4T 06/14/2022 Conowingo Pond 12/05/2022 near Conowingo Dam 6F1 06/14/2022 Holtwood Dam 12/05/2022 1 Control Location

All Non-Natural Gamma Emitters <MDA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 42 Table B-4 Concentration of Iodine-131 in Filtered Air (Results in units of 10-3 pCi/m3 +/- 2)

GROUP 1 GROUP II GROUP III Start Coll Date End Coll Date 1B 1C 1Z 3A 5H21 1/3/2022 1/10/2022 1/4/2022 1/13/2022 1/10/2022 1/18/2022 1/13/2022 1/20/2022 1/18/2022 1/24/2022 1/20/2022 1/28/2022 1/24/2022 1/31/2022 1/28/2022 2/2/2022 1/31/2022 2/7/2022 2/2/2022 2/9/2022 2/7/2022 2/14/2022 2/9/2022 2/17/2022 2/14/2022 2/21/2022 2/17/2022 2/23/2022 2/21/2022 2/28/2022 2/23/2022 3/2/2022 2/28/2022 3/7/2022 3/2/2022 3/10/2022 3/7/2022 3/14/2022 3/10/2022 3/17/2022 3/14/2022 3/21/2022 3/17/2022 3/24/2022 3/21/2022 3/29/2022 3/24/2022 3/31/2022 3/29/2022 4/4/2022 3/31/2022 4/7/2022 4/4/2022 4/11/2022 4/7/2022 4/14/2022 4/11/2022 4/18/2022 4/14/2022 4/21/2022 4/18/2022 4/25/2022 4/21/2022 4/28/2022 4/25/2022 5/2/2022 4/28/2022 5/5/2022 5/2/2022 5/9/2022 5/5/2022 5/12/2022 5/9/2022 5/16/2022 5/12/2022 5/19/2022 5/16/2022 5/23/2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 43 Start Coll Date End Coll Date 1B 1C 1Z 3A 5H21 5/19/2022 5/26/2022 5/23/2022 5/31/2022 5/26/2022 6/2/2022 5/31/2022 6/6/2022 6/2/2022 6/9/2022 6/6/2022 6/13/2022 6/9/2022 6/16/2022 6/13/2022 6/20/2022 6/16/2022 6/23/2022 6/20/2022 6/27/2022 6/23/2022 6/29/2022 6/27/2022 7/5/2022 6/29/2022 7/7/2022 7/5/2022 7/11/2022 7/7/2022 7/14/2022 7/11/2022 7/18/2022 7/14/2022 7/21/2022 7/18/2022 7/25/2022 7/21/2022 7/28/2022 7/25/2022 8/2/2022 7/28/2022 8/4/2022 8/2/2022 8/8/2022 8/4/2022 8/11/2022 2

8/8/2022 8/15/2022 8/11/2022 8/18/2022 8/15/2022 8/22/2022 8/18/2022 8/25/2022 8/22/2022 8/29/2022 8/25/2022 9/1/2022 8/29/2022 9/6/2022 9/1/2022 9/8/2022 9/6/2022 9/12/2022 9/8/2022 9/15/2022 9/12/2022 9/19/2022 9/15/2022 9/22/2022 9/19/2022 9/26/2022 9/22/2022 9/29/2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 44 Start Coll Date End Coll Date 1B 1C 1Z 3A 5H21 09/26/2022 10/03/2022 9/29/2022 10/6/2022 10/3/2022 10/10/2022 10/6/2022 10/13/2022 10/10/2022 10/17/2022 10/13/2022 10/21/2022 10/17/2022 10/24/2022 10/21/2022 10/27/2022 10/24/2022 10/31/2022 10/27/2022 11/3/2022 10/31/2022 11/7/2022 11/3/2022 11/10/2022 11/7/2022 11/14/2022 11/10/2022 11/17/2022 11/14/2022 11/22/2022 11/17/2022 11/23/2022 11/22/2022 11/29/2022 11/23/2022 11/30/2022 11/29/2022 12/5/2022 11/30/2022 12/8/2022 12/5/2022 12/12/2022 12/8/2022 12/15/2022 12/12/2022 12/19/2022 12/15/2022 12/22/2022 12/19/2022 12/27/2022 12/22/2022 12/29/2022 1 Control Location 2 Lost Sample-power failure

<MDA (I-131)

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 45 Table B-5 Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m3 +/- 2)

Start Date End Date 1B 1C 1Z 3A 5H2 1 1/3/2022 1/10/2022 4.59 +/-

0.29 1/4/2022 1/13/2022 3.95 +/- 0.24 3.68 +/-

0.23 3.02 +/-

0.22 3.85 +/- 0.23 1/10/2022 1/18/2022 3.94 +/-

0.26 1/13/2022 1/20/2022 3.90 +/- 0.27 3.59 +/-

0.26 2.82 +/-

0.24 3.95 +/- 0.27 1/18/2022 1/24/2022 3.38 +/-

0.27 1/20/2022 1/28/2022 3.53 +/- 0.24 3.11 +/-

0.23 2.56 +/-

0.22 3.39 +/- 0.24 1/24/2022 1/31/2022 3.54 +/-

0.26 1/28/2022 2/2/2022 3.19 +/- 0.31 2.93 +/-

0.30 2.37 +/-

0.28 3.27 +/- 0.31 1/31/2022 2/7/2022 2.51 +/-

0.23 2/2/2022 2/9/2022 2.89 +/- 0.25 2.49 +/-

0.24 1.85 +/-

0.22 2.79 +/- 0.25 2/7/2022 2/14/2022 3.03 +/-

0.24 2/9/2022 2/17/2022 2.99 +/- 0.22 2.46 +/-

0.21 2.24 +/-

0.20 2.75 +/- 0.22 2/14/2022 2/21/2022 2.91 +/-

0.24 2/17/2022 2/23/2022 2.56 +/- 0.27 2.52 +/-

0.27 1.90 +/-

0.23 2.60 +/- 0.26 2/21/2022 2/28/2022 3.07 +/-

0.24 2/23/2022 3/2/2022 3.00 +/- 0.26 2.87 +/-

0.25 2.78 +/-

0.25 3.01 +/- 0.26 2/28/2022 3/7/2022 3.59 +/-

0.27 3/2/2022 3/10/2022 2.61 +/- 0.22 2.25 +/-

0.20 2.54 +/-

0.27 2.28 +/- 0.20 3/7/2022 3/14/2022 1.77 +/-

0.20 3/10/2022 3/17/2022 3.49 +/- 0.27 3.10 +/-

0.26 2.82 +/-

0.31 3.33 +/- 0.26 3/14/2022 3/21/2022 3.31 +/-

0.25 3/17/2022 3/24/2022 2.21 +/- 0.23 2.26 +/-

0.25 1.90 +/-

0.21 1.90 +/- 0.20 3/21/2022 3/29/2022 1.52 +/-

0.18 3/24/2022 3/31/2022 1.48 +/- 0.20 1.63 +/-

0.21 1.50 +/-

0.20 1.43 +/- 0.20 3/29/2022 4/4/2022 1.99 +/-

0.24 3/31/2022 4/7/2022 1.80 +/- 0.20 1.56 +/-

0.19 1.66 +/-

0.19 1.76 +/- 0.20 4/4/2022 4/11/2022 1.31 +/-

0.19 4/7/2022 4/14/2022 1.59 +/- 0.20 1.44 +/-

0.20 1.52 +/-

0.20 1.63 +/- 0.20 4/11/2022 4/18/2022 1.98 +/-

0.20 4/14/2022 4/21/2022 1.72 +/- 0.22 1.78 +/-

0.22 1.65 +/-

0.20 1.58 +/- 0.20 4/18/2022 4/25/2022 2.41 +/-

0.23 4/21/2022 4/28/2022 3.11 +/- 0.25 2.53 +/-

0.23 2.16 +/-

0.22 2.28 +/- 0.23 4/25/2022 5/2/2022 2.71 +/-

0.23 4/28/2022 5/5/2022 3.18 +/- 0.25 2.76 +/-

0.24 2.58 +/-

0.23 2.64 +/- 0.24 5/2/2022 5/9/2022 1.83 +/-

0.21 5/5/2022 5/12/2022 2.46 +/- 0.22 2.23 +/-

0.22 2.25 +/-

0.24 2.32 +/- 0.22 5/9/2022 5/16/2022 1.68 +/-

0.20 5/12/2022 5/19/2022 1.26 +/- 0.18 1.21 +/-

0.19 1.21 +/-

0.20 1.23 +/- 0.19

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 46 Start Date End Date 1B 1C 1Z 3A 5H2 1 5/16/2022 5/23/2022 2.55 +/-

0.23 5/19/2022 5/26/2022 2.97 +/- 0.23 2.92 +/- 0.25 2.66 +/- 0.26 2.74 +/- 0.24 5/23/2022 5/31/2022 1.58 +/-

0.18 5/26/2022 6/2/2022 2.96 +/- 0.24 2.58 +/- 0.23 1.64 +/- 0.31 2.45 +/- 0.23 5/31/2022 6/6/2022 2.94 +/-

0.20 6/2/2022 6/9/2022 2.99 +/- 0.25 2.57 +/-

0.24 2.29 +/-

0.24 2.59 +/- 0.23 6/6/2022 6/13/2022 2.46 +/-

0.26 6/9/2022 6/16/2022 2.79 +/- 0.26 2.48 +/-

0.24 2.27 +/-

0.23 2.40 +/- 0.25 6/13/2022 6/20/2022 2.09 +/-

0.26 6/16/2022 6/23/2022 2.81 +/- 0.23 2.56 +/-

0.23 2.45 +/-

0.22 2.56 +/- 0.23 6/20/2022 6/27/2022 2.71 +/-

0.18 6/23/2022 6/29/2022 2.13 +/- 0.31 1.86 +/-

0.33 1.91 +/-

0.32 1.94 +/- 0.33 6/27/2022 7/5/2022 2.47 +/-

0.21 6/29/2022 7/7/2022 3.16 +/- 0.15 2.62 +/-

0.15 2.41 +/-

0.17 2.71 +/- 0.16 7/5/2022 7/11/2022 2.82 +/-

0.22 7/7/2022 7/14/2022 3.26 +/- 0.25 2.84 +/-

0.24 2.54 +/-

0.23 2.68 +/- 0.27 7/11/2022 7/18/2022 3.12 +/-

0.23 7/14/2022 7/21/2022 3.79 +/- 0.22 3.59 +/-

0.22 3.06 +/-

0.21 3.39 +/- 0.22 7/18/2022 7/25/2022 3.82 +/-

0.22 7/21/2022 7/28/2022 3.96 +/- 0.25 3.79 +/-

0.26 3.36 +/-

0.24 3.50 +/- 0.25 7/25/2022 8/2/2022 2.94 +/-

0.29 7/28/2022 8/4/2022 3.89 +/- 0.28 3.23 +/-

0.31 2.95 +/-

0.29 3.13 +/- 0.30 8/2/2022 8/8/2022 3.01 +/-

0.26 8/4/2022 8/11/2022 2.74 +/- 0.35 2.34 +/-

0.34 2.06 +/-

0.33 2

8/8/2022 8/15/2022 2.40 +/-

0.29 8/11/2022 8/18/2022 3.39 +/- 0.21 3.22 +/-

0.19 3.04 +/-

0.19 3.40 +/- 0.29 8/15/2022 8/22/2022 3.50 +/-

0.24 8/18/2022 8/25/2022 3.25 +/- 0.23 3.31 +/-

0.26 2.59 +/-

0.23 2.77 +/- 0.21 8/22/2022 8/29/2022 3.33 +/-

0.21 8/25/2022 9/1/2022 3.73 +/- 0.21 3.50 +/-

0.22 2.77 +/-

0.19 3.27 +/- 0.20 8/29/2022 9/6/2022 2.89 +/-

0.26 9/1/2022 9/8/2022 2.52 +/- 0.36 2.20 +/-

0.38 2.06 +/-

0.32 2.21 +/- 0.35 9/6/2022 9/12/2022 2.28 +/-

0.25 9/8/2022 9/15/2022 3.28 +/- 0.25 2.89 +/-

0.25 2.62 +/-

0.24 2.74 +/- 0.23 9/12/2022 9/19/2022 3.33 +/-

0.26 9/15/2022 9/22/2022 5.97 +/- 0.33 5.12 +/-

0.33 4.66 +/-

0.30 5.11 +/- 0.31 9/19/2022 9/26/2022 4.07 +/-

0.27 9/22/2022 9/29/2022 3.12 +/- 0.25 2.68 +/-

0.25 2.52 +/-

0.24 2.78 +/- 0.24 9/26/2022 10/3/2022 2.03 +/-

0.22 9/29/2022 10/6/2022 1.98 +/- 0.21 2.10 +/-

0.21 1.75 +/-

0.20 2.05 +/- 0.21 10/3/2022 10/10/2022 2.35 +/-

0.22 10/6/2022 10/13/2022 5.07 +/- 0.31 4.93 +/-

0.31 4.23 +/-

0.29 4.49 +/- 0.29

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 47 1 Control Location 2 Lost Sample-Air Sampler Malfunction Start Date End Date 1B 1C 1Z 3A 5H21 10/10/2022 10/17/2022 4.44 +/-

0.30 10/13/2022 10/21/2022 3.70 +/- 0.24 3.36 +/- 0.25 2.83 +/- 0.23 4.11 +/- 0.27 10/17/2022 10/24/2022 3.23 +/-

0.25 10/21/2022 10/27/2022 2.77 +/- 0.26 2.76 +/- 0.23 2.81 +/- 0.27 3.93 +/- 0.30 10/24/2022 10/31/2022 1.49 +/-

0.19 10/27/2022 11/3/2022 3.06 +/- 0.25 2.82 +/-

0.24 2.99 +/-

0.26 4.12 +/- 0.28 10/31/2022 11/7/2022 3.40 +/-

0.25 11/3/2022 11/10/2022 3.30 +/- 0.25 2.82 +/-

0.24 2.92 +/-

0.24 4.09 +/- 0.28 11/7/2022 11/14/2022 2.39 +/-

0.22 11/10/2022 11/17/2022 1.79 +/- 0.22 1.73 +/-

0.21 1.96 +/-

0.22 3.04 +/- 0.25 11/14/2022 11/22/2022 2.91 +/-

0.22 11/17/2022 11/23/2022 3.92 +/- 0.30 3.84 +/-

0.29 4.11 +/-

0.30 5.62 +/- 0.34 11/22/2022 11/29/2022 5.12 +/-

0.30 11/23/2022 11/30/2022 5.06 +/- 0.30 5.04 +/-

0.32 5.08 +/-

0.30 6.97 +/- 0.34 11/29/2022 12/5/2022 3.88 +/-

0.30 11/30/2022 12/8/2022 4.39 +/- 0.26 3.68 +/-

0.25 4.38 +/-

0.27 6.06 +/- 0.30 12/5/2022 12/12/2022 3.46 +/-

0.26 12/8/2022 12/15/2022 2.91 +/- 0.24 2.61 +/-

0.23 2.99 +/-

0.24 3.93 +/- 0.27 12/12/2022 12/19/2022 2.35 +/-

0.22 12/15/2022 12/22/2022 3.01 +/- 0.25 2.95 +/-

0.26 3.02 +/-

0.25 4.16 +/- 0.28 12/19/2022 12/27/2022 3.32 +/-

0.23 12/22/2022 12/29/2022 4.28 +/- 0.28 4.37 +/-

0.28 4.14 +/-

0.27 5.71 +/- 0.31

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 48 Table B-6 Concentration of Gamma Emitters in Air Particulates (Results in units of 10-3 pCi/m3 +/- 2)

Start Date Stop Date 1B 1C 1Z 3A 5H21 1/03/2022 3/29/2022 1/04/2022 3/31/2022 3/29/2022 6/27/2022 3/31/2022 6/29/2022 6/27/2022 9/26/2022 6/29/2022 9/29/2022 9/26/2022 12/27/2022 9/29/2022 12/29/2022

1 Control Location

All Non-Natural Gamma Emitters <MDA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 49 Table B-7 Concentration of Gamma Emitters in Vegetation Samples (Results in units of pCi/kg (wet) +/- 2)

Sample Code Sample Date Sample Type Gamma Emitters 1C 6/22/2022 Kale 6/22/2022 Collard 6/22/2022 Cabbage 7/20/2022 Collard 7/20/2022 Cabbage 7/20/2022 Kale 8/17/2022 Kale 8/17/2022 Collard 8/17/2022 Cabbage 9/20/2022 Kale 9/20/2022 Collard 9/20/2022 Chard 2Q 6/22/2022 Cabbage 6/22/2022 Cucumber 6/22/2022 String Beans 7/20/2022 Zucchini 7/20/2022 Yellow Squash 7/20/2022 Cabbage 8/17/2022 Broccoli 8/17/2022 Zucchini 8/17/2022 Cabbage 9/20/2022 Cabbage 9/20/2022 Broccoli 9/20/2022 Pumpkin Leaves 3Q 6/22/2022 Cabbage 6/22/2022 Broccoli 6/22/2022 Kale 7/20/2022 Cauliflower 7/20/2022 Cabbage 7/20/2022 Broccoli 8/17/2022 Beets 8/17/2022 Squash 8/17/2022 Eggplant 9/20/2022 Pumpkin 9/20/2022 Zucchini 9/20/2022 Eggplant

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 50 Table B-7 Concentration of Gamma Emitters in Vegetation Samples (Results in units of pCi/kg (wet) +/- 2)

Sample Code Sample Date Sample Type Gamma Emitters 551 6/22/2022 Kale 6/22/2022 Cabbage 6/22/2022 Collards 7/20/2022 Kale 7/20/2022 Cabbage 7/20/2022 Collards 8/17/2022 Kale 8/17/2022 Cabbage 8/17/2022 Collards 9/20/2022 Pumpkin 9/20/2022 Zucchini 9/20/2022 Swiss Chard 1 Control Location

All Non-Natural Gamma Emitters <MDA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 51 Table B-8 Concentration of Gamma Emitters (including I-131) in Milk (Results in units of pCi/Liter +/- 2)

Sample Code Sample Date Gamma Emitters Farm J 1/6/2022 Biweekly-Monthly 2/9/2022 3/2/2022 4/12/2022 4/26/2022 5/10/2022 5/24/2022 6/7/2022 6/21/2022 7/6/2022 7/20/2022 8/2/2022 8/16/2022 8/30/2022 9/14/2022 9/27/2022 10/12/2022 10/25/2022 11/8/2022 11/22/2022 12/6/2022 Farm R 1/6/2022 Biweekly-Monthly 2/8/2022 3/2/2022 4/12/2022 4/26/2022 5/10/2022 5/24/2022 6/7/2022 6/21/2022 7/6/2022 7/20/2022 8/2/2022 8/16/2022 8/30/2022 9/14/2022 9/27/2022 10/12/2022 10/25/2022 11/8/2022 11/22/2022 12/8/2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 52 Table B-8 Concentration of Gamma Emitters (including I-131) in Milk (Results in units of pCi/Liter +/- 2)

Sample Code Sample Date Gamma Emitters Farm S 1/6/2022 Biweekly-Monthly 2/8/2022 3/2/2022 4/12/2022 4/26/2022 5/10/2022 5/24/2022 6/7/2022 6/21/2022 7/6/2022 7/20/2022 8/2/2022 8/16/2022 8/30/2022 9/14/2022 9/27/2022 10/12/2022 10/25/2022 11/8/2022 11/22/2022 12/6/2022 Farm V 1/6/2022 Biweekly-Monthly 2/8/2022 3/2/2022 4/12/2022 4/26/2022 5/10/2022 5/24/2022 6/7/2022 6/21/2022 7/6/2022 7/20/2022 8/2/2022 8/16/2022 8/30/2022 9/14/2022 9/27/2022 10/12/2022 10/25/2022 11/9/2022 11/21/2022 12/7/2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 53 Table B-8 Concentration of Gamma Emitters (including I-131) in Milk (Results in units of pCi/Liter +/- 2)

Sample Code Sample Date Gamma Emitters Farm X 1/6/2022 Biweekly-Monthly 2/8/2022 3/2/2022 4/12/2022 4/26/2022 5/10/2022 5/24/2022 6/7/2022 6/21/2022 7/6/2022 7/20/2022 8/2/2022 8/16/2022 8/30/2022 9/14/2022 9/27/2022 10/12/2022 10/25/2022 11/8/2022 11/22/2022 12/7/2022 Farm C 2/8/2022 Quarterly 5/11/2022 8/3/2022 11/8/2022 Farm D 2/8/2022 Quarterly 5/10/2022 8/2/2022 11/8/2022 Farm E 2/9/2022 Quarterly 5/10/2022 8/2/2022 11/8/2022 Farm P 2/8/2022 Quarterly 5/10/2022 8/2/2022 11/8/2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 54 Table B-8 Concentration of Gamma Emitters (including I-131) in Milk (Results in units of pCi/Liter +/- 2)

Sample Code Sample Date Gamma Emitters Farm W 2/8/2022 Quarterly 5/10/2022 8/4/2022 11/8/2022 Farm Y 2/9/2022 Quarterly 5/10/2022 8/2/2022 11/8/2022 1 Control Location

All Non-Natural Gamma Emitters <MDA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 55 Table B-9 Typical MDA Ranges for Gamma Spectrometry Selected Nuclides Air Particulates (10-3 pCi/m3)

Surface

Water, Drinking Water (pCi/L)

Fish (pCi/kg) Wet Ground water (pCi/L)

Milk (pCi/L)

Oysters (pCi/kg)

Shoreline Sediment (pCi/kg)Dry Soil (pCi/kg)

Dry Vegetation (pCi/kg) Wet K-40 5.65 - 24.6 16 - 182 2,747 - 4,505 21.5 -66.4 1,286 - 1,529 1,269 - 2,069 781 - 13,761 789 - 10,713 671 - 11,829 Mn-54 0.32 - 1.16 2.7 - 5.6 9.8 - 19.6 2.86 - 5.14 3.6 - 6.6 10.8 - 16.4 41.4 - 67.1 37.4 - 91.9 10.3 - 53.0 Fe-59 1.01 - 8.52 5.6 - 13.2 31.6 - 93.2 6.04 - 11.7 9.2 - 15.9 29.3 - 56.7 142 - 251 96.4 - 389 22.0 - 151 Co-58 0.38 - 2.07 2.7 - 5.6 10.9 - 28.3 2.86 - 5.27 3.7 - 6.3 10.5 - 19.3 53.7 - 82.9 44.6 - 133 10.9 - 59.8 Co-60 0.28 - 1.09 2.8 - 5.5 10.9 - 24.3 3.01 - 5.38 4.1 - 7.2 11.7 - 17.0 38.6 - 57.9 32.8 - 85.8 12.9 - 55.0 Zn-65 0.81 - 3.10 5.5 - 11.4 23.3 - 57.2 6.41 - 14.4 9.4 - 16.1 22.0 - 43.3 112 - 198 96.4 - 275 24.7 - 116 Ag-110m 0.33 - 1.06 2.42 - 4.96 8.2 - 18.1 2.79 - 5.06 3.26-5.64 8.7 - 16.0 36.6 - 175 40.7 - 99.4 10.1 - 61.4 Zr-95 0.72 - 3.88 4.7 - 10.2 20.0 - 47.1 5.62 - 8.75 5.8 - 11.5 19.0 - 34.0 93.5 - 151 84.6 - 261 19.3 - 116 Nb-95 0.56 - 4.91 2.9 - 6.0 13.7 - 42.7 3.3 - 5.88 3.9 - 6.5 13.9 - 24.3 82.1 - 157 61.5 - 227 10.9 - 90.5 Ru-106 3.00 - 12.1 23.8 - 48.1 77.1 - 197 25.6 - 45.3 29.3 - 51.8 88.0 - 141 327.0 - 570 314.0 - 840 92.9 - 541 I-1311 2.73 - 914 0.52 - 11.7 21.4 - 2,340 4.87 - 9.04 0.5 - 7.03 22.4 - 107 470 - 2,040 139 - 8,060 13.4 - 854 Cs-134 0.47 - 0.88 3.2 - 5.7 7.8 - 16.0 2.92 - 5.48 4.09 - 4.82 9.7 - 16.5 43.3 - 82.4 33.4 - 109 11.1 - 58.1 Cs-137 0.46 - 0.88 3.7 - 5.9 3.8 - 17.5 2.97 - 5.43 4.08 - 5.29 10.0 - 16.7 38.4 - 65.4 39.1 - 135 11.1 - 62.3 La-140 2.01 - 116 5.05 - 11.5 15.9 - 444 4.87 - 10.3 4.89 - 6.28 24.1 - 80.4 368 - 773 136 - 1,820 9.1 - 388 Ba-140 2.01 - 116 5.05 - 11.5 15.9 - 444 5.86 - 26.0 4.89 - 6.28 24.1 - 80.4 368 - 773 136 - 1,820 9.1 - 388 Ce-144 1.12 - 3.27 16.8 - 36.7 38.1 - 70.9 17.8 - 32.0 20.5 - 31.0 42.6 - 72.6 208 - 279 191 - 414 46.6 - 289 Cr-51 4.90 - 45.0 23.2 - 50.6 93.0 - 395 26.7 - 42.1 30.4 - 46.8 97.0 - 199 711 - 1,110 489 - 1,810 93.9 - 850 Na-22 0.34 - 1.33 2.7 - 6.0 12.1 - 28.0 2.78 - 5.94 4.9 - 8.5 13.4 - 19.5 46.4 - 77.4 36.4 - 92.4 8.9 - 54.1 1 This MDA range for I-131 on a charcoal cartridge is typically 5.22 x 10-3 to 1.37 x 10-2 pCi/m3

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 56 Table B-10 Typical LLDs for Gamma Spectrometry Selected Nuclides Air Particulates 10-3 pCi/m3 Surface Water, Drinking Water pCi/L Fish pCi/kg (wet)

Ground water pCi/L Oysters pCi/kg (wet)

Milk pCi/L Soil pCi/kg (dry)

Vegetation pCi/kg (wet)

Na-22 5

5.3 12 5.3 12 9.1 78 27 Cr-51 74 37 76 37 76 62 452 174 Mn-54 4.6 4.7 13 4.7 13 7.4 63 19 Co-58 6.7 4.3 12 4.3 12 8.2 78 23 Fe-59 20 11 27 11 27 18 123 57 Co-60 3.5 4.8 12 4.8 12 7.5 59 24 Zn-65 8.9 11 27 11 27 17 162 55 Nb-95 9.8 4.5 13 4.5 13 9.5 73 25 Zr-95 11 7.9 18 7.9 18 14 117 34 Ru-106 43 38 111 38 111 62 624 174 Ag-110m 4.2 4.3 11 4.3 11 6

65 20 Te-129m 101 56 118 56 118 90 833 263 I-131*

90 0.8 11 6.4 11 0.8 58 42 Cs-134 4.7 4.7 11 4.7 11 6.7 66 18 Cs-137 4.2 5.1 11 5.1 11 6.9 78 21 Ba-140 47 23 39 23 39 46 103 111 La-140 47 9.2 15 9.2 15 13 103 30 Ce-144 15 23 45 23 45 37 288 70

The LLD for I-131 measured on a Charcoal cartridge is 3.7 x10-2 pCi/m3

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 57 Table B-11 Quarterly DLR Results for Peach Bottom Atomic Power Station 2022 (Results in Units of mrem/91 days)

Location Monitoring Quarterly Bo +

Location

Baseline, MDD0 Bo (mrem)

(mrem)

P*TLD*14 23.2 28.6 P-TLD-1S 23.9 29.3 P-TLD-16 23.4 28.8 P-TLD-17 27.2 32.6 P-TLD-18 23.9 29.3 P-TLD-19 20.8 26.2 P-TLD-1A 23.8 29.2 P-TLD-1B 20.2 2S.6 P-TLD-1C 24.1 29.S P-TLD-1D 23.4 28.8 P-TLD-1E 22.8 28.2 P-TLD-1F 27 32.4 P-TLD-1G 1S.9 21.3 P-TLD-1H 23.6 29.0 P-TLD-11 21.4 26.8 P-TLD-1J

27. 3 32.7 P-TLD-1K 26.4 31.8 P-TLD-1L 19.4 24.8 P-TLD-1M 14 19.4 P-TLD-1NN 2.S.S 30.9 P-TLD-1P 16.1 21.S P-TLD-1Q 18.7 24.1 P*TlD*lR

32.9 38.3 P-TLD-1T 24.7 30.1 P-TLD-2 23 28.4 P-TLD-22 24.3 29.7 P-TLD-23 24.9 30.3 P*TLD*24 18.1 23.S P-TLD-26 26 31.4 P-TLD-27 24.7 30.1 P*TLD*2B **

22.1 27.S P-TLD-31A 19.9 2S.3 P-TLD-32 2.S.4 30.8 P-TLD-3A

17. 3 22.7 P*TL0--40 27.8 33.2 P*TL0--42 21 26.4 P*TL0--43 26.S 31.9 P*TL0--44 22.8 28.2 P*TL0--45 24.S 29.9 P*TL0--46 21 26.4 P*TL0--47 26 31.4 P*TL0--48 24.3 29.7 P*TL0--49 24 29.4 P*TL0--4K 1S.1 20.S P-TLD-S 22 27.4 P-TLD-S0 28.1 33.S P-TLD-S1 23.6 29.0 P-TLD-6B 19.8 2S.2 ND Fac,hty Related Dose was Not Detected

lR is the dosimeter closest to the ISFSI 2022 Normalized Net Dose, Mo.

(mrem/std. Ctr.)

1 I

2 I

3 I

4 2U 23.8 22.6 20.1 21.7 24.S 23.2 24.6 19.7 22.3 21.3 21.8 23.S 27.2 24.2 24.S 21.7 23.6 23.9 23.S 16.S 19.1 16.7 20 22.9 26.4 22.6 23.S 18.3 20.6 20.2 20 21.1 24.9 24.1 24.4 19.7 22.8 21.3 22 20.6 24 23.1 23.S 26.2 26.7 26.3 26.1 12.2 14.8 14.6 13.4 21.8 24 22.8 23.4 19.2 21.7 20.l 21.9 2S.2 27 24.1 28.6 23.1 27.4 27.1 2.S.7 20 23.1 19.6 21 12.8 14.4 14 14.9 21.8 26.6 23 26.8 14.9 18.1 1S 17.1 17.3 19.S 17.S 19 30.7 3S.6 33.1 3S. 3 19.S 24.4 24 22.8 21.S 24.4 24.4 24.6 21.S 23.9 22.S 23.2 23.7 2S.S 2S.2 23.2 13.7 16 16.3 18.S 20.3 23.S 22.9 22.8 21.9 2S.1 21.8 2S 21.9 23.7 22 23.4 17.S 19.1 18.S 16.1 21.2 2S.2 23.S 2.S.6 1S.6 17.8 14.9 17.8 24.9 28.8 2S.S 28.2 1S.8 19.4 18.9 18.2 23.S 27 24.6

26. 3 20.3 22.9 22.2 19.7 21.4 23.2 21.2 23.6 18.6 21.7 19.9 21.1 24.7 27 24.4 26.1 21.2 2S 23.7 2.S.7 20.7 24.4 24.1 20.S 12.9 16 14.7 14.4 19.1 23 19.9 20.1 2S.3 27.7 29.3

29. 3 20.7 22.8 22.6 22 17.6 20 17.9 18.S

- 2B is the dosimeter located at the closest residence to the plant and ISFSJ Quarterly Facility Dose, F0 (mrem) 1 I

2 I

3 I

4 ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 58 Table B-12 Annual DLR Results for Peach Bottom Atomic Power Station 2022 (Results in Units of mrem/year)

Monitoring Annual e... Moo.

Baseline, Location BA (mrem)

(mrem)

P*TLD*14 92.8 108.9 P-TLD-1S 9S.S 111.6 P-TLD-16 93.7 109.8 P-TLD-17 108.9 12S.0 P-TLD-18 9S.S 111.6 P-TLD-19 83.2 99.3 P-TLD-1A 9S 111.1 P-TLD-1B 80.8 96.9 P-TLD-1C 96.3 112.4 P-TLD-!D 93.8 109.9 P-TLD-1E 91.2 107.3 P-TLD-1F 108 124.1 P-TLD-1G 63.4 79.S P-TLD-1H 94.4 110.S P-TLD-11 8S.6 101.7 P-TLD-11 109 12S.1 P-TLD-1K 10S.S 121.6 P-TLD-1L 77.6 93.7 P-TLD-1M S6.1 72.2 P-TLD-1NN 102.1 118.2 P-TLD-1P 64.6 80.7 P-TLD-1Q 74.9 91.0 P*TLD*1R

131.7 147.8 P-TLD-1T 104.7 120.8 P-TLD-2 92.2 108.3 P-TLD-22 97 113.1 P-TLD-23 99.7 11S.8 P*TLD*24 72.3 88.4 P-TLD-26 104.1 120.2 P-TLD-27 98.8 114.9 P*TLD*2B **

88.4 104.S P-TLD-31A 79.6 9S.7 P-TLD-32 101.7 117.8 P-TLD-3A 69.3 8S.4 P*TL0--40 111.2 127.3 P*TL0--42 84.2 100.3 P-TLD-43 1D6.1 122.2 P*TL0--44 91.3 107.4 P*TL0--4S 98.2 114.3 P*TL0--46 84.2 100.3 P*TL0--47 103.8 119.9 P*TL0--48 97.1 113.2 P*TL0--49 9S.8 111.9 P*TL0--4K 60.3 76.4 P-TLD-5 87.8 103.9 P-TLD-50 112.2 128.3 P-TLD-51 94.S 110.6 P-TLD-6B 79.1 9S.2 ND Fac,hty Related Dose was Not Detected

tR is *the dosimeter closest to the ISFSI Normalized Annual Dose, MA (mrem/yr) 87.8 94 8S.l 99.4 92.7 72.3 95.4 79.1 94.S 85.8

!n.2 105.3 5 S 92 82.9 104.9 103.3 83.7 S6.1 98.2 6S.1 73.3 134.7 90.7 94.9

!n.1 97.6 64.S 89.S 93.8 9 1 n.2 9S.S 66.1 107.4 72.3 101.A 8S.1 89.4 81.3 102.2 9S.6 89.7 58 82.1 111.6 88.1 74

- 28 is the dosimeter iocated at the closest residence to the plant and ISFS, Annual Facility Dose, FA ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 59 APPENDIX C Quality Assurance Program Appendix C is a summary of Constellation Generation Solutions (CGS) laboratorys quality assurance program. It consists of Table C-1 which is a compilation of the results of the CGS laboratorys participation in an interlaboratory comparison program with Environmental Resource Associates (ERA) located in Arvada, Colorado and Eckert and Ziegler Analytics, Inc. (EZA) located in Atlanta, Georgia.

It also includes Table C-2, which is a compilation of the results of the Constellation Generation Solutions (CGS) Laboratorys participation in a split sample program with Teledyne Brown Engineering located in Knoxville, Tennessee and Table C-3, which is a list of the Site Specific LLDs required by the ODCM.

The CGS laboratory's results contained in Table C-1, interlaboratory comparison results, are in full agreement when they were evaluated using the NRC Resolution Test Criteria

[1] except as noted in the Pass/Fail column and described below. The CGS laboratory's results are provided with their analytical uncertainties of two sigma. When evaluating with the NRC Resolution Test a one sigma uncertainty is used to determine Pass or Fail and noted accordingly.

All results reported passed their respective vendor acceptance ranges and NRC Resolution Test Criteria [1] with one exception for the Gross Beta Study ERA RAD 129, reference date 4/4/2022. The CGS result passed the low end of vendor acceptance criteria but failed NRC Resolution Test Criteria. Low recovery of activity was likely due to an ineffective residue correction factor that undercompensates for the significant residue weight present in the study accounting for the low result reported. This low value and a low uncertainty in turn resulted in an NRC Resolution Test Criteria Failure. A set of 3rd party, NIST traceable standards has been procured to build a residue correction curve for more accurate results going forward. This event has been entered into the Corrective Action Program for tracking and to prevent future occurrence.

All results reported passed their respective vendor acceptance ranges and NRC Resolution Test Criteria [1]

The vendor laboratories used by CGS for subcontracting and interlaboratory comparison samples, GEL Laboratories and Teledyne Brown Engineering, also participate in the ERA and EZA interlaboratory comparison program. A presentation of their full data report is provided in their Annual Environmental Quality Assurance Program Reports, (Ref 21,22). In summary Gel and TBE reported results met vendor and laboratory acceptance ranges with the following exceptions discussed here:

1. TBE result for Air particulate Ce-144 submitted for a study in March 2022 failed the upper acceptance limit. The laboratory investigated and the study results were outside the acceptable range specified in TBE's QA plan, 70-130% of True Value, but would have been acceptable when taking the uncertainty into account. A duplicate study was analyzed on two other

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 60 detectors and passed the upper acceptance limit. In both cases TBE's published QA requirements of acceptable range being 70-130% of True value were met. The lab's performance is within the acceptable range specified in their QA plan. This same range is considered acceptable by Constellation Nuclear Quality Assurance Requirements as well. TBE states in their investigation that there was no impact to sample data and no further action is warranted.

2. TBE result for Air particulate Co-60 study in September 2022 failed the upper acceptance limit. The laboratory investigated and the study results were outside the acceptable range specified in TBE's QA plan, 70-130% of True Value. The study was analyzed as a duplicate on another detector and passed within 114% of True Value. Historical results for Air particulate Co-60 have ranged from 91% - 141% with a mean of 91%. The lab determined no correction action needed at this time as it is the first failure for this nuclide for Air particulate.

3. GEL results for MRAD-37 Sr-90 failed vendor acceptance criteria, exceeding the maximum range for both vegetation and water. The laboratory review did not reveal any gross errors or possible contributors to the high bias. During this same analysis time period the laboratory successfully analyzed these same matrices in PT for MAPEP-47 which required the same preparation and analysis processes and procedures. The lab will continue to monitor the recoveries of these parameters to ensure there are no continued issues.

The Inter and Intra laboratory results contained in Table C-2 are intercomparison results for routine samples analyzed for replicate and split analyses and evaluated for beta and non-natural gamma emitters. The CGS laboratorys results are provided with their analytical uncertainties of 2 sigma. When evaluating with the NRC Resolution Test a one sigma uncertainty is used to determine Pass or Fail and noted accordingly. In the event there are no non-natural isotopes detected, the samples are reported <MDA and designated as Pass.

All the results contained in Table C-2 agree with their respective CGS or GEL laboratory original, replicate and/or Teledyne Brown Engineerings split laboratory sample according to NRC Resolution Test Criteria1. The results for separate air samplers collocated 1Z and 1A analyzed by CGS and TBE respectively are provided in Table C-2a for Air Iodine and C-2b for the Beta particulate. The results are generally in trend and a plot of the data between the two locations is found in the main body of the report, Figure A-8. The results for split samples 4L from Gross Beta are provided in Table C-2c. The results are generally in trend and a plot of the data between the two locations is found in the main body of the report, Figure A-7.

There were three of the four quarterly samples for soil at SFS3 that indicated low level, Non Plant related Cs-137 just above the analyses Minimum Detectable Activity. This activity has been investigated previously and levels are in trend with historical data at this location.

1. The original analysis of soil collected on February 21, 2022, at SFS3 indicated low level, Non Plant related Cs-137 just above the analyses Minimum Detectable Activity at 146 +/-

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 61 61.9 pCi/kg. The replicate and split samples also indicated Cs-137 above the MDA, at 212 +/-37.5 pCi/kg and 141+/-83.0 pCi/kg, respectively.

2. The original analysis of soil collected on June 6, 2022, at SFS3 indicated low level, Non Plant related Cs-137 just above the analyses MDA at 140 +/- 56.2 pCi/kg. The replicate analysis confirmed Cs-137 above the MDA at 98.9 +/-52.3 pCi/kg and results are in agreement when evaluated using the NRC Resolution Test Criteria1.

3. The original analysis of soil collected on November 15, 2022, at SFS3 indicated low level, Non Plant related Cs-137 just above the analyses MDA at 133 +/- 55.3 pCi/kg. The replicate analysis confirmed Cs-137 above the MDA at 169 +/-61.3 pCi/kg and these results are in agreement when evaluated using the NRC Resolution Test Criteria1.

The original, replicate and split results pass the NRC Resolution Test Criteria1, as specified in the rule. The low-level Cs-137 observed in these soil analyses is consistent with weapons related fallout previously identified in the environs around Calvert Cliffs Nuclear Power Plant.

All air particulate samples contain Beta emitters and are reported with a 2 sigma uncertainty. The original and replicate analyses are evaluated for agreement using the NRC Resolution Test Criteria1. These samples must be composited for further analysis and this precludes them from being split for analysis of beta emitters. Filters and other samples whose nature generally preclude sample splitting are marked ** in the Split Analysis column.

[1] NRC Inspection Manual, Inspection Procedure 84750, March 15, 1994

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 62 TABLE OF CONTENTS - APPENDIX C - ANALYTICAL RESULTS Table Title Page C-1 Results of Participation in Cross Check Programs............................................................63 C-2 Results of Quality Assurance Program..............................................................................69 C-2a Results of Quality Assurance Program Co-Located Air Samplers....................................84 C-2b Results of Quality Assurance Program Co-Located Air Samplers....................................87 C-2c Results of Quality Assurance Program 4L Analyzed by Primary and QC Laboratories...89 C-3 Peach Bottom Atomic Power Station ODCM Required LLDs.........................................90

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 63 Table C-1 Results of Participation in Cross Check Programs Reported NRC Sample Equip Isotope Cross Check Resolution Date Vendor Study ID Sample Type Units ID Observed Laboratory's Lab Results Test Results Pass/ Fail '

3/1012022 ANA El3643 Mill:

Gamma pCilL D4 Ce-141 58.6

+/-

11.5 64.6 Pass Co-58 160

+/-

15.6 164 Pass Co-60 313

+/-

15.8 302 Pass Cr-51 390

+/-

95.0 339 Pass Cs-134 16S

+/-

S.98 182 Pass Cs-137 222

+/-

17.4 223 Pass Fe-59 185

+/-

20.8 185 Pass 1-131 98.9

+/-

21.6 96.7 Pass wln-54 157

+/-

14.8 164 Pass Zn-65 231

+/-

31.7 246 Pass 3/1012022 ANA El3643 Mill:

Gamma pCilL D5 Ce-141 71.6

+/-

16.3 64.6 Pass Co-58 164

+/-

15.1 164 Pass Co-60 302

+/-

14.8 302 Pass Cr-51 39S

+/-

107 339 Pass Cs-134 16S

+/-

9.67 182 Pass Cs-137 212

+/-

16.0 223 Pass Fe-59 207

+/-

21.3 185 Pass 1-131 96.2

+/-

26.7 96.7 Pass wln-54 166

+/-

15.0 164 Pass Zn-65 230

+/-

31.0 246 Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 64

3110/2022 ANA E13644 Water Beta pCi/L S5E C&-137 224

+/-

4.43 222 Pass 3/1012022 ANA E13645 Cartridge Gamma pCi 02 1-131 81.9

+/-

8.35 88.2 Pass 03 1-131 84.7

+/-

7.96 88.2 Pass 04 1-131 82.0

+/-

7.39 88.2 Pass 41412022 ERA RAD129 Water Gamma pCilL 04 Ba-133 56.6

+/-

4.24 62.9 Pass Cs-134 81.0

+/-

3.61 81.6 Pass C&-137 37.8

+/-

4.54 36.6 Pass Co-60 97.6

+/-

5.11 97.4 Pass Zn-65 293

+/-

17.9 302 Pass 41412022 ERA RAD129 Water Beta pCilL S5E C&-137 35.8

+/-

1.88 51.0 Fail' 414/2022 ERA RAD129 Water Gamma pCilL 04 1-131 27.1

+/-

4.39 26.2 Pa!S 6116/2022 ANA E13646 Water Beta pCi/L S5E Cs-137 250

+/-

4.66 260 Pass 6/1612022 ANA E13647 Water Gamma pCilL 03 Ce-141 141

+/-

15.5 139 Pass Co-58 126

+/-

14.9 128 Pass Co-60 244

+/-

12.6 242 Pass Cr-51 314

+/-

84.7 344 Pass C&-134 163

+/-

9.09 172 Pass C&-137 213

+/-

15.4 204 Pass Fe-59 170

+/-

19.0 157 Pass 1-131 112

+/-

22.6 91.2 Pass t'vln-54 243

+/-

16.9 229 Pass Zn-65 302

+/-

30.5 296 Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 65

6/16/2022 ANA E13647 Water Gamma pCilL D4 Ce-141 126 14.6 139 Pass Co-58 124 13.8 128 Pass Co-60 24S 13.1 242 Pass Cr-51 35S 92.9 344 Pass Cs-134 163 9.11 172 Pass Cs-137 217 15.8 204 Pass Fe-59 180 19.0 157 Pass 1-131 86.2 24.2 91.2 Pass tllln-54 253 17.0 229 Pass Zn-65 253 30.2 296 Pass 6/16/2022 ANA E13648 Filter Gamma pCi D5 Ce-141 101 5.17 96.6 Pass Co-58 89.3 4.93 89.3 Pass Co-60 169 4.85 168 Pass Cr-51 252 34.6 239 Pass Cs-134 100 2.67 119 Pass Cs-137 142 5.25 142 Pass Fe-59 129 S.07 109 Pass tllln-54 16S 5.97 159 Pass Zn-65 211 11.7 206 Pass 6/16/2022 ANA E13648 Filter Gamma pCi D4 Ce-141 96.7 7.64 97.0 Pass Co-58 89.2 7.09 89.0 Pass Co-60 171 7.27 168 Pass Cr-51 265 35.4 239 Pass Cs-134 104 4.09 119 Pass Cs-137 147 7.98 142 Pass Fe-59 136 10.6 109 Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 66

lvln-54 170

+/-

9.08 159 Pass Zn-65 198

+/-

16.4 206 Pass 6/16/2022 ANA E13649 Filter Beta pCi S5E c.. 131 276

+/-

3.47 242 Pass S5E c.. n1 276

+/-

3.47 242 Pass S5E c.. n1 275

+/-

3.47 242 Pass 9/1512022 ANA E13650A Filter Beta pCi S5E c.. n1 242

+/-

3.25 224 Pass 9/1912022 ERA lvlRAD037 Filter Gamma pCi D4 c.. 134 270

+/-

6.71 325 Pass c.. n1 706

+/-

19.3 795 Pass Co-60 198

+/-

8.36 191 Pass Zn-65 125

+/-

16.5 120 Pass 10n12022 ERA RAD131 Water Gamma pCilL D4 Ba-133 75.0

+/-

3.79 79.4 Pass c.. 134 29.0

+/-

2.09 30.5 Pass c.. n1 212

+/-

7.45 212 Pass Co-60 50.4

+/-

3.06 51.4 Pass Zn-65 212

+/-

12.8 216 Pass 1-131 25.4

+/-

6.03 24.4 Pass ll/112022 ANA E13651 Filter Gamma pCi D4 Ce-141 144

+/-

9.4 140 Pass Co-58 143

+/-

12.0 144 Pass Co-60 174

+/-

10.0 181 Pass Cr-51 287

+/-

54.4 290 Pass c.. 134 93.0

+/-

5.59 120 Pass c.. n1 134

+/-

10.7 137 Pass Fe-59 142

+/-

15.9 124 Pass lvln-54 162

+/-

12.1 158 Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 67

Zn-65 192

+/-

23.5 191 Pass 12/112022 AN.'\\

EJ3651 Filter Gamma pCi D5 Ce-141 146

+/-

S.6 140 Pass Co-58 140

+/-

JO.I 144 Pass Co-60 ISO

+/-

S.97 181 Pass C<-51 286

+/-

46.1 290 Pass Cs-134 94.5

+/-

48.6 120 Pass Cs-137 125

+/-

91.6 137 Pass Fe-59 14S

+/-

12.8 124 Pass tvln-54 172

+/-

10.4 158 Pass Zn-65 199

+/-

20.3 191 Pass 12/112022 AN.'\\

EJ3652 Water Beta pCilL S5E Cs-137 30S

+/-

5.11 283 Pass 12/112022 AN.'\\

EJ3653 Cartri~e Gamma pCi D2 1-131 88.7

+/-

9.50 91.6 Pass D3 1-131 88.5

+/-

9.40 91.6 Pass D4 1-131 93.5

+/-

S.60 91.6 Pass D5 1-131 89.S

+/-

9.10 91.6 Pass 12/112022 AN.'\\

EJ3654

]1,liJk Gamma pCilL D4 Ce-141 223

+/-

19.5 225 Pass Co-58 222

+/-

19.7 230 Pass Co-60 281

+/-

16.3 290 Pass C<-51 433

+/-

111 464 Pass Cs-134 182

+/-

114 191 Pass Cs-137 214

+/-

18.6 219 Pass Fe-59 220

+/-

23.3 198 Pass 1-131 104

+/-

22.1 95.1 Pass tvln-54 252

+/-

19.7 252 Pass Zn-65 274

+/-

38.0 305 Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 68

12/112022 ANA El3654

},,fill:

Gamma pCi/L D5 Ce-141 22S

~

19.1 225 Pass Co-58 226

~

17.7 230 Pass Co-60 2S5

~ 14.9 290 Pass Cr-51 494

~ llO 464 Pass Cs-134 179

~

10.1 191 Pass Cs-137 231

~ 18.0 219 Pass Fe-59 214

~ 21.6 19S Pass 1-131 102

~ 23.0 95.1 Pass Yln-54 252

~ 18.6 252 Pass Zn-65 2S2

~ 33.4 305 Pass

~

discunio::1 at the~ of the Appendi.""t

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 69 Water -

Circ in 1/3/2022 Gross Beta pCi/L 2.03

+/-

0.8 2.95

+/-

0.8 Pass NA Water -

Circ Out 1/3/2022 Gross Beta pCi/L 2.53

+/-

0.8 2.94

+/-

0.8 Pass NA Water -

OWD 1/3/2022 Gross Beta pCi/L 2.11

+/-

0.8 2.86

+/-

0.8 Pass NA Water -

MCWA 1/3/2022 Gross Beta pCi/L 1.64

+/-

0.8 2.11

+/-

0.8 Pass NA Water -

Webster 1/3/2022 Gross Beta pCi/L 1.33

+/-

0.7 1.75

+/-

0.7 Pass NA Water -

DC 1/12/2022 Gross Beta pCi/L 2.61

+/-

1.9 4.48

+/-

1.9 Pass NA Water -

ML 1/12/2022 Gross Beta pCi/L 4.74

+/-

4.1 4.96

+/-

4.1 Pass NA Water -

Circ in 10/10/2022 Gross Beta pCi/L 2.64

+/-

0.8 3.48

+/-

0.8 Pass NA Water -

Circ Out 10/10/2022 Gross Beta pCi/L 2.07

+/-

0.8 2.41

+/-

0.8 Pass NA Water -

OWD 10/10/2022 Gross Beta pCi/L 1.88

+/-

0.7 2.61

+/-

0.8 Pass NA Water -

MCWA 10/10/2022 Gross Beta pCi/L 1.82

+/-

0.7 1.74

+/-

0.7 Pass NA Water -

Webster 10/10/2022 Gross Beta pCi/L 2.23

+/-

0.8 2.36

+/-

0.8 Pass NA Water -

DC 10/31/2022 Gross Beta pCi/L 5.35

+/-

2.0 8.89

+/-

2.3 Pass NA Water -

ML 10/31/2022 Gross Beta pCi/L 8.19

+/-

2.2 8.58

+/-

2.2 Pass NA Water -

16C2 1/31/2022 Gross Beta pCi/L 2.6

+/-

0.8 NA

<2.5 NA Pass Water -

16C2 1/31/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 1/31/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 2/28/2022 Gross Beta pCi/L 2.7

+/-

0.9 NA

<3.3 NA Pass Water -

16C2 2/28/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 2/28/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 3/29/2022 Gross Beta pCi/L 2.1

+/-

0.8 NA 3.24

+/-

1.7 NA Pass Water -

16C2 3/29/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 3/29/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 3/29/2022 Tritium pCi/L

<123 NA

<194 NA Pass Water -

16C2 5/2/2022 Gross Beta pCi/L 1.6

+/-

0.8 NA

<2.8 NA Pass Table C-2 Results of Quality Assurance Program Sample Type and Location Sample Date Type of Analysis Result Units Original Analysis Replicate Analysis Split Analysis Pass/Fail (Replicate)

Pass/Fail (Split)

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 70 Water -

16C2 5/2/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 5/2/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 5/31/2022 Gross Beta pCi/L 1.8

+/-

0.8 NA

<3.3 NA Pass Water -

16C2 5/31/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 5/31/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 6/27/2022 Gross Beta pCi/L 5.1

+/-

1.0 NA

<3.0 NA Pass Water -

16C2 6/27/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 6/27/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 6/27/2022 Tritium pCi/L

<164 NA

<182 NA Pass Water -

16C2 8/2/2022 Gross Beta pCi/L 2.7

+/-

1.6 NA

<1.8 NA Pass Water -

16C2 8/2/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 8/2/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 8/29/2022 Gross Beta pCi/L 3.4

+/-

0.7 NA

<3.1 NA Pass Water -

16C2 8/29/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 8/29/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 10/3/2022 Gross Beta pCi/L 1.8

+/-

0.8 NA

<3.1 NA Pass Water -

16C2 10/3/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 10/3/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 10/3/2022 Tritium pCi/L

<163 NA

<188 NA Pass Water -

16C2 10/31/2022 Gross Beta pCi/L 2.0

+/-

0.8 NA 3.22

+/-

1.8 NA Pass Water -

16C2 10/31/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 10/31/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 11/29/2022 Gross Beta pCi/L 1.8

+/-

0.8 NA

<2.7 NA Pass Water -

16C2 11/29/2022 LLI pCi/L

<MDA NA

<MDA NA Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 71 Water -

16C2 11/29/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 1/3/2023 Gross Beta pCi/L 2.4

+/-

0.8 NA

<3.0 NA Pass Water -

16C2 1/3/2023 LLI pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 1/3/2023 Gamma pCi/L

<MDA NA

<MDA NA Pass Water -

16C2 1/3/2023 Tritium pCi/L

<156 NA

<178 NA Pass Milk-19B1 1/18/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-19B1 1/18/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-25C1 1/18/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-25C1 1/18/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-19B1 4/11/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-19B1 4/11/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-25C1 4/11/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-25C1 4/11/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-19B1 7/5/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-19B1 7/5/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-19B1 10/11/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-19B1 10/11/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-22B1 12/6/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-22B1 12/6/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm V 2/08/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm V 2/08/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm S 2/08/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm S 2/08/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm J 2/09/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm J 2/09/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 72 Milk-Farm V 5/10/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm V 5/10/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm S 5/10/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm S 5/10/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm J 5/10/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm J 5/10/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm V 8/02/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm V 8/02/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm S 8/02/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm S 8/02/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm J 8/02/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm J 8/02/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm J 11/08/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm J 11/08/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm S 11/08/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm S 11/08/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Milk-Farm V 11/09/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Milk-Farm V 11/09/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 2/02/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 2/02/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 3/02/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 3/02/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 3/31/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 3/31/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 3/31/2022 Tritium pCi/L

<125 NA 259+/-129 NA Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 73 Water-4L 4/28/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 4/28/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 6/02/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 6/02/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 6/29/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 6/29/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 6/29/2022 Tritium pCi/L

<169 NA

<167 NA Pass Water-4L 7/28/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 7/28/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 9/01/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 9/01/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 9/29/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 9/29/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 9/29/2022 Tritium pCi/L

<153 NA

<161 NA Pass Water-4L 11/03/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 11/03/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 11/30/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 11/30/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 12/29/2022 LLI pCi/L

<MDA NA

<MDA NA Pass Water-4L 12/29/2022 Gamma pCi/L

<MDA NA

<MDA NA Pass Water-4L 12/29/2022 Tritium pCi/L

<94.2 NA

<185 NA Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 74 Composite-1Z 3/31/2022 Gamma pCi/ m3 1Z

<MDA NA 1A

<MDA NA Pass Composite-1Z 6/29/2022 Gamma pCi/ m3 1Z

<MDA NA 1A

<MDA NA Pass Composite-1Z 9/29/2022 Gamma pCi/ m3 1Z

<MDA NA 1A

<MDA NA Pass Composite-1Z 12/29/2022 Gamma pCi/ m3 1Z

<MDA NA 1A

<MDA NA Pass Composite-11S1 3/29/2022 Gamma pCi/m3 11S1

<MDA NA 11S2

<MDA NA Pass Composite-11S1 6/27/2022 Gamma pCi/m3 11S1

<MDA NA 11S2

<MDA NA Pass Composite-11S1 10/3/2022 Gamma pCi/m3 11S1

<MDA NA 11S2

<MDA NA Pass Composite-11S1 1/3/2023 Gamma pCi/m3 11S1

<MDA NA 11S2

<MDA NA Pass Air Filter -

A1 1/10/2022 Gross Beta 10-2 pCi/m3 2.7

+/-

0.2 2.8

+/-

0.2 Pass NA Air Filter -

A1 4/18/2022 Gross Beta 10-2 pCi/m3 1.6

+/-

0.1 1.6

+/-

0.1 Pass NA Air Filter -

A1 4/25/2022 Gross Beta 10-2 pCi/m3 1.8

+/-

0.1 1.8

+/-

0.1 Pass NA Air Filter -

A1 5/2/2022 Gross Beta 10-2 pCi/m3 2.4

+/-

0.1 2.3

+/-

0.1 Pass NA Air Filter -

A1 6/6/2022 Gross Beta 10-2 pCi/m3 2.3

+/-

0.1 2.2

+/-

0.1 Pass NA Air Filter -

A1 8/29/2022 Gross Beta 10-2 pCi/m3 3.4

+/-

0.1 3.3

+/-

0.2 Pass NA Air Filter -

A1 10/31/2022 Gross Beta 10-2 pCi/m3 1.1

+/-

0.1 1.3

+/-

0.1 Pass NA Air Filter -

A1 11/15/2022 Gross Beta 10-2 pCi/m3 1.5

+/-

0.1 1.6

+/-

0.1 Pass NA Air Filter -

A2 1/10/2022 Gross Beta 10-2 pCi/m3 2.4

+/-

0.2 2.4

+/- 0.2 Pass NA Air Filter -

A2 4/18/2022 Gross Beta 10-2 pCi/m3 1.4

+/-

0.1 1.3

+/- 0.1 Pass NA Air Filter -

A2 4/25/2022 Gross Beta 10-2 pCi/m3 1.6

+/-

0.1 1.6

+/- 0.1 Pass NA Air Filter -

A2 5/02/2022 Gross Beta 10-2 pCi/m3 2.2

+/-

0.2 2.0

+/- 0.1 Pass NA Air Filter -

A2 6/06/2022 Gross Beta 10-2 pCi/m3 1.7

+/-

0.1 1.7

+/- 0.1 Pass NA Air Filter -

A2 8/29/2022 Gross Beta 10-2 pCi/m3 3.0

+/-

0.1 3.0

+/- 0.2 Pass NA Air Filter -

A2 10/31/2022 Gross Beta 10-2 pCi/m3 1.1

+/-

0.1 1.2

+/- 0.1 Pass NA Air Filter -

A2 11/15/2022 Gross Beta 10-2 pCi/m3 1.5

+/-

0.1 1.6

+/- 0.1 Pass NA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 75 Air Filter -

A3 1/10/2022 Gross Beta 10-2 pCi/m3 3.1

+/-

0.2 2.9

+/-

0.2 Pass NA Air Filter -

A3 4/18/2022 Gross Beta 10-2 pCi/m3 1.5

+/-

0.1 1.5

+/-

0.1 Pass NA Air Filter -

A3 4/25/2022 Gross Beta 10-2 pCi/m3 1.8

+/-

0.1 1.8

+/-

0.1 Pass NA Air Filter -

A3 5/2/2022 Gross Beta 10-2 pCi/m3 2.6

+/-

0.1 2.1

+/-

0.1 Pass NA Air Filter -

A3 6/6/2022 Gross Beta 10-2 pCi/m3 2.3

+/-

0.1 2.3

+/-

0.2 Pass NA Air Filter -

A3 8/29/2022 Gross Beta 10-2 pCi/m3 3.6

+/-

0.1 3.5

+/-

0.2 Pass NA Air Filter -

A3 10/31/2022 Gross Beta 10-2 pCi/m3 1.0

+/-

0.1 1.0

+/-

0.1 Pass NA Air Filter -

A3 11/15/2022 Gross Beta 10-2 pCi/m3 1.5

+/-

0.1 1.6

+/-

0.1 Pass NA Air Filter -

A4 1/10/2022 Gross Beta 10-2 pCi/m3 2.7

+/-

0.2 2.9

+/-

0.2 Pass NA Air Filter -

A4 4/18/2022 Gross Beta 10-2 pCi/m3 1.5

+/-

0.1 1.5

+/-

0.1 Pass NA Air Filter -

A4 4/25/2022 Gross Beta 10-2 pCi/m3 1.8

+/-

0.1 1.9

+/-

0.1 Pass NA Air Filter -

A4 5/2/2022 Gross Beta 10-2 pCi/m3 2.4

+/-

0.1 2.2

+/-

0.1 Pass NA Air Filter -

A4 6/6/2022 Gross Beta 10-2 pCi/m3 2.3

+/-

0.1 2.3

+/-

0.1 Pass NA Air Filter -

A4 8/29/2022 Gross Beta 10-2 pCi/m3 3.6

+/-

0.1 3.8

+/-

0.2 Pass NA Air Filter -

A4 10/31/2022 Gross Beta 10-2 pCi/m3 1.2

+/-

0.1 1.3

+/-

0.1 Pass NA Air Filter -

A4 11/15/2022 Gross Beta 10-2 pCi/m3 1.6

+/-

0.1 1.8

+/-

0.1 Pass NA Air Filter -

A5 1/10/2022 Gross Beta 10-2 pCi/m3 2.8

+/-

0.2 2.8

+/-

0.2 Pass NA Air Filter -

A5 4/18/2022 Gross Beta 10-2 pCi/m3 1.4

+/-

0.1 1.4

+/-

0.1 Pass NA Air Filter -

A5 4/25/2022 Gross Beta 10-2 pCi/m3 1.7

+/-

0.1 1.8

+/-

0.1 Pass NA Air Filter -

A5 5/2/2022 Gross Beta 10-2 pCi/m3 2.6

+/-

0.2 2.2

+/-

0.1 Pass NA Air Filter -

A5 6/6/2022 Gross Beta 10-2 pCi/m3 2.2

+/-

0.1 2.3

+/-

0.2 Pass NA Air Filter -

A5 8/29/2022 Gross Beta 10-2 pCi/m3 3.9

+/-

0.1 3.9

+/-

0.2 Pass NA Air Filter -

A5 10/31/2022 Gross Beta 10-2 pCi/m3 1.2

+/-

0.1 1.3

+/-

0.1 Pass NA Air Filter -

A5 11/15/2022 Gross Beta 10-2 pCi/m3 1.7

+/-

0.1 1.8

+/-

0.1 Pass NA Air Filter -

SFA1 1/10/2022 Gross Beta 10-2 pCi/m3 3.1

+/-

0.2 3.0

+/-

0.2 Pass NA Air Filter -

SFA1 4/18/2022 Gross Beta 10-2 pCi/m3 1.4

+/-

0.1 1.5

+/-

0.1 Pass NA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 76 Air Filter -

SFA1 4/25/2022 Gross Beta 10-2 pCi/m3 1.6

+/-

0.1 1.7

+/-

0.1 Pass NA Air Filter -

SFA1 5/2/2022 Gross Beta 10-2 pCi/m3 2.2

+/-

0.1 2.2

+/-

0.1 Pass NA Air Filter -

SFA1 6/6/2022 Gross Beta 10-2 pCi/m3 2.2

+/-

0.1 2.0

+/-

0.2 Pass NA Air Filter -

SFA1 8/29/2022 Gross Beta 10-2 pCi/m3 3.2

+/-

0.1 3.2

+/-

0.2 Pass NA Air Filter -

SFA1 10/31/2022 Gross Beta 10-2 pCi/m3 1.0

+/-

0.1 1.1

+/-

0.1 Pass NA Air Filter -

SFA1 11/15/2022 Gross Beta 10-2 pCi/m3 1.5

+/-

0.1 1.6

+/-

0.1 Pass NA Air Filter -

SFA2 1/10/2022 Gross Beta 10-2 pCi/m3 2.7

+/-

0.2 2.8

+/-

0.2 Pass NA Air Filter -

SFA2 4/18/2022 Gross Beta 10-2 pCi/m3 1.6

+/-

0.1 1.6

+/-

0.1 Pass NA Air Filter -

SFA2 4/25/2022 Gross Beta 10-2 pCi/m3 1.8

+/-

0.1 1.8

+/-

0.1 Pass NA Air Filter -

SFA2 5/2/2022 Gross Beta 10-2 pCi/m3 2.2

+/-

0.1 2.4

+/-

0.1 Pass NA Air Filter -

SFA2 6/6/2022 Gross Beta 10-2 pCi/m3 2.4

+/-

0.1 2.4

+/-

0.1 Pass NA Air Filter -

SFA2 8/29/2022 Gross Beta 10-2 pCi/m3 3.3

+/-

0.1 3.4

+/-

0.2 Pass NA Air Filter -

SFA2 10/31/2022 Gross Beta 10-2 pCi/m3 1.0

+/-

0.1 1.0

+/-

0.1 Pass NA Air Filter -

SFA2 11/15/2022 Gross Beta 10-2 pCi/m3 1.5

+/-

0.1 1.6

+/-

0.1 Pass NA Air Filter -

SFA3 1/10/2022 Gross Beta 10-2 pCi/m3 2.9

+/-

0.2 3.0

+/-

0.2 Pass NA Air Filter -

SFA3 4/18/2022 Gross Beta 10-2 pCi/m3 1.5

+/-

0.1 1.4

+/-

0.1 Pass NA Air Filter -

SFA3 4/25/2022 Gross Beta 10-2 pCi/m3 1.6

+/-

0.1 1.7

+/-

0.1 Pass NA Air Filter -

SFA3 5/2/2022 Gross Beta 10-2 pCi/m3 2.3

+/-

0.1 2.1

+/-

0.1 Pass NA Air Filter -

SFA3 6/6/2022 Gross Beta 10-2 pCi/m3 2.4

+/-

0.1 2.2

+/-

0.2 Pass NA Air Filter -

SFA3 8/29/2022 Gross Beta 10-2 pCi/m3 3.5

+/-

0.1 3.3

+/-

0.2 Pass NA Air Filter -

SFA3 10/31/2022 Gross Beta 10-2 pCi/m3 0.9

+/-

0.1 1.1

+/-

0.1 Pass NA Air Filter -

SFA3 11/15/2022 Gross Beta 10-2 pCi/m3 1.2

+/-

0.1 1.5

+/-

0.1 Pass NA Air Filter -

SFA4 1/10/2022 Gross Beta 10-2 pCi/m3 2.7

+/-

0.2 2.8

+/-

0.2 Pass NA Air Filter -

SFA4 4/18/2022 Gross Beta 10-2 pCi/m3 1.4

+/-

0.1 1.4

+/-

0.1 Pass NA Air Filter -

SFA4 4/25/2022 Gross Beta 10-2 pCi/m3 1.7

+/-

0.1 1.7

+/-

0.1 Pass NA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 77 Air Filter -

SFA4 5/2/2022 Gross Beta 10-2 pCi/m3 2.2

+/-

0.1 2.0

+/-

0.1 Pass NA Air Filter -

SFA4 6/6/2022 Gross Beta 10-2 pCi/m3 2.0

+/-

0.1 2.1

+/-

0.1 Pass NA Air Filter -

SFA4 10/31/2022 Gross Beta 10-2 pCi/m3 0.9

+/-

0.1 1.1

+/-

0.1 Pass NA Air Filter -

SFA4 11/15/2022 Gross Beta 10-2 pCi/m3 1.3

+/-

0.1 1.5

+/-

0.1 Pass NA Air Filter -

STATION-02 4/18/2022 Gross Beta 10-2 pCi/m3 3.0

+/-

0.1 3.1

+/-

0.1 Pass NA Air Filter -

STATION-03 4/18/2022 Gross Beta 10-2 pCi/m3 3.0

+/-

0.2 3.1

+/-

0.1 Pass NA Air Filter -

STATION-04 4/18/2022 Gross Beta 10-2 pCi/m3 3.4

+/-

0.3 3.2

+/-

0.3 Pass NA Air Filter -

STATION-05 4/18/2022 Gross Beta 10-2 pCi/m3 3.4

+/-

0.2 3.4

+/-

0.2 Pass NA Air Filter -

STATION-06 4/18/2022 Gross Beta 10-2 pCi/m3 3.3

+/-

0.2 3.4

+/-

0.2 Pass NA Air Filter -

STATION-07 4/18/2022 Gross Beta 10-2 pCi/m3 3.6

+/-

0.2 3.6

+/-

0.2 Pass NA Air Filter -

STATION-08 4/19/2022 Gross Beta 10-2 pCi/m3 3.0

+/-

0.2 3.3

+/-

0.2 Pass NA Air Filter -

STATION-09 4/19/2022 Gross Beta 10-2 pCi/m3 3.4

+/-

0.2 3.2

+/-

0.2 Pass NA Air Filter -

STATION-10 4/19/2022 Gross Beta 10-2 pCi/m3 3.5

+/-

0.2 3.5

+/-

0.2 Pass NA Air Filter -

STATION-11 4/19/2022 Gross Beta 10-2 pCi/m3 3.4

+/-

0.2 3.2

+/-

0.2 Pass NA Air Filter -

STATION-12 4/19/2022 Gross Beta 10-2 pCi/m3 3.3

+/-

0.2 3.4

+/-

0.2 Pass NA Air Filter -

STATION-13 4/19/2022 Gross Beta 10-2 pCi/m3 3.4

+/-

0.2 3.4

+/-

0.2 Pass NA Air Iodine - A1 1/18/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A2 1/18/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A3 1/18/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A4 1/18/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A5 1/18/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA1 1/18/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA2 1/18/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA3 1/18/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA4 1/18/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A1 2/15/2022 I-131 pCi/m3

<MDA

<MDA Pass NA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 78 Air Iodine - A2 2/15/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A3 2/15/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A4 2/15/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A5 2/15/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA1 2/15/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA2 2/15/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA3 2/15/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA4 2/15/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A1 5/9/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A2 5/9/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A3 5/9/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A4 5/9/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A5 5/9/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA1 5/9/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA2 5/9/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA3 5/9/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA4 5/9/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A1 8/1/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A2 8/1/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A3 8/1/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A4 8/1/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A5 8/1/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA1 8/1/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA2 8/1/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA3 8/1/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA4 8/1/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A1 9/6/2022 I-131 pCi/m3

<MDA

<MDA Pass NA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 79 Air Iodine - A2 9/6/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A3 9/6/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A4 9/6/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A5 9/6/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA1 9/6/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA2 9/6/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA3 9/6/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA4 9/6/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine

- STATION-02 10/4/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine

- STATION-04 10/4/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine

- STATION-07 10/4/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine

- STATION-08 10/4/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine

- STATION-09 10/4/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine

- STATION-11 10/4/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A1 10/24/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A2 10/24/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A3 10/24/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A4 10/24/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A5 10/24/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA1 10/24/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA2 10/24/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA3 10/24/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA4 10/24/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A1 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 80 Air Iodine - A2 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A3 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A4 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A5 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA1 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA2 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA3 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA4 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - STATION-02 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - STATION-04 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - STATION-07 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - STATION-08 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - STATION-09 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - STATION-11 12/19/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A1 12/27/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A2 12/27/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A3 12/27/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A4 12/27/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - A5 12/27/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA1 12/27/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA2 12/27/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA3 12/27/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Air Iodine - SFA4 12/27/2022 I-131 pCi/m3

<MDA

<MDA Pass NA Soil-SFS31 2/21/2022 Gamma pCi/kg 146 +/- 61.9 212 +/- 67.5 141 +/- 83.0 Pass Pass Soil-SFS3 6/6/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Soil-SFS5 6/6/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 81 Sediment-WBS2 6/21/2022 Gamma pCi/kg

<MDA

<MDA Pass Pass Air Filter -

A1 6/27/2022 Gamma pCi/m3

<MDA

<MDA Pass Pass Air Filter -

A2 6/27/2022 Gamma pCi/m3

<MDA

<MDA Pass Pass Air Filter -

A3 6/27/2022 Gamma pCi/m3

<MDA

<MDA Pass Pass Air Filter -

A4 6/27/2022 Gamma pCi/m3

<MDA

<MDA Pass Pass Air Filter -

A5 6/27/2022 Gamma pCi/m3

<MDA

<MDA Pass Pass Air Filter -

SFA1 6/27/2022 Gamma pCi/m3

<MDA

<MDA Pass Pass Air Filter -

SFA2 6/27/2022 Gamma pCi/m3

<MDA

<MDA Pass Pass Air Filter -

SFA3 6/27/2022 Gamma pCi/m3

<MDA

<MDA Pass Pass Air Filter -

SFA4 6/27/2022 Gamma pCi/m3

<MDA

<MDA Pass Pass Cabbage-IB8 6/27/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Water-WA1 7/1/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Water-WA2 7/1/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Cabbage-IB4 7/25/2022 Gamma pCi/kg

<MDA

<MDA Pass Pass Tomato-EAST 7/28/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Zucchini-SSE 7/28/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Zucchini-EAST 7/28/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Water-WA1 7/29/2022 Gamma pCi/L

<MDA

<MDA Pass Pass Water-WA2 7/29/2022 Gamma pCi/L

<MDA

<MDA Pass Pass Fish-IA1 8/24/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Oysters-IA3 8/24/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Collards-IB4 9/19/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Kale-IB5 9/19/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 82 Water-WA1 9/30/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Water-WA2 9/30/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Sediment-WB1 10/3/2022 Gamma pCi/kg

<MDA

<MDA Pass Pass Milk-Farm A 10/5/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Milk-Farm B 10/3/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Oysters-IA3 10/11/2022 Gamma pCi/kg

<MDA

<MDA Pass Pass Oysters-IA6 10/11/2022 Gamma pCi/kg

<MDA

<MDA Pass Pass Vegetation-SFB1 11/15/2022 Gamma pCi/kg

<MDA

<MDA Pass Pass Vegetation-SFB5 11/15/2022 Gamma pCi/kg

<MDA

<MDA Pass Pass Fish-NORTH 11/15/2022 Gamma pCi/kg

<MDA

<MDA Pass Pass Fish-WEST 11/15/2022 Gamma pCi/kg

<MDA

<MDA Pass Pass Soil-SFS31 11/15/2022 Gamma pCi/kg 133

+/-

55.3 169

+/-

61.3 NA Pass NA Soil-SFS1 11/15/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Soil-SFS2 11/15/2022 Gamma pCi/kg

<MDA

<MDA NA Pass NA Milk-18E1 11/22/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Milk-19B1 11/22/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Milk-G2-1Q 11/23/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Milk-Farm A 11/28/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Milk-Farm B 11/28/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 83 Water-WA1 11/29/2022 Gamma pCi/L

<MDA

<MDA Pass Pass Water-WA2 11/29/2022 Gamma pCi/L

<MDA

<MDA Pass Pass Water-4L 11/30/2022 Gamma pCi/L

<MDA

<MDA Pass Pass Water-Q9-1 11/30/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Milk-Farm J 12/6/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Milk-Farm S 12/6/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Milk-Farm V 12/7/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Milk-G2-1Q 12/7/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Water-4L 12/29/2022 Gamma pCi/L

<MDA

<MDA Pass Pass Water-WA1 12/29/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA Water-WA2 12/29/2022 Gamma pCi/L

<MDA

<MDA NA Pass NA 1 See discussion at the beginning of the Appendix

- The nature of these samples precluded splitting them with an independent laboratory.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 84 Table C-2a Results of Quality Assurance Program Co-Located Air Samplers 1Z and 1A Concentration of Iodine-131 in Filtered Air (Results in units of 10-3 pCi/m3 +/- 2)

Start Date Stop Date Isotope Observed 1Z Analysis by CGS 1A Analysis by TBE 1/4/2022 1/13/2022 I-131

<MDA

<MDA 1/13/2022 1/20/2022 I-131

<MDA

<MDA 1/20/2022 1/28/2022 I-131

<MDA

<MDA 1/28/2022 2/2/2022 I-131

<MDA

<MDA 2/2/2022 2/9/2022 I-131

<MDA

<MDA 2/9/2022 2/17/2022 I-131

<MDA

<MDA 2/17/2022 2/23/2022 I-131

<MDA

<MDA 2/23/2022 3/2/2022 I-131

<MDA

<MDA 3/2/2022 3/10/2022 I-131

<MDA

<MDA 3/10/2022 3/17/2022 I-131

<MDA

<MDA 3/17/2022 3/24/2022 I-131

<MDA

<MDA 3/24/2022 3/31/2022 I-131

<MDA

<MDA 3/31/2022 4/7/2022 I-131

<MDA

<MDA 4/7/2022 4/14/2022 I-131

<MDA

<MDA 4/14/2022 4/21/2022 I-131

<MDA

<MDA 4/21/2022 4/28/2022 I-131

<MDA

<MDA 4/28/2022 5/5/2022 I-131

<MDA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 85 Table C-2a Results of Quality Assurance Program Co-Located Air Samplers 1Z and 1A Concentration of Iodine-131 in Filtered Air (Results in units of 10-3 pCi/m3 +/- 2)

Start Date Stop Date Isotope Observed 1Z Analysis by CGS 1A Analysis by TBE 5/5/2022 5/12/2022 I-131

<MDA

<MDA 5/12/2022 5/19/2022 I-131

<MDA

<MDA 5/19/2022 5/26/2022 I-131

<MDA

<MDA 5/26/2022 6/2/2022 I-131

<MDA

<MDA 6/2/2022 6/9/2022 I-131

<MDA

<MDA 6/9/2022 6/16/2022 I-131

<MDA

<MDA 6/16/2022 6/23/2022 I-131

<MDA

<MDA 6/23/2022 6/29/2022 I-131

<MDA

<MDA 6/29/2022 7/7/2022 I-131

<MDA

<MDA 7/7/2022 7/14/2022 I-131

<MDA

<MDA 7/14/2022 7/21/2022 I-131

<MDA

<MDA 7/21/2022 7/28/2022 I-131

<MDA

<MDA 7/28/2022 8/4/2022 I-131

<MDA

<MDA 8/4/2022 8/11/2022 I-131

<MDA

<MDA 8/11/2022 8/18/2022 I-131

<MDA

<MDA 8/18/2022 8/25/2022 I-131

<MDA

<MDA 8/25/2022 9/1/2022 I-131

<MDA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 86 Table C-2a Results of Quality Assurance Program Co-Located Air Samplers 1Z and 1A Concentration of Iodine-131 in Filtered Air (Results in units of 10-3 pCi/m3 +/- 2)

Start Date Stop Date Isotope Observed 1Z Analysis by CGS 1A Analysis by TBE 9/1/2022 9/8/2022 I-131

<MDA

<MDA 9/8/2022 9/15/2022 I-131

<MDA

<MDA 9/15/2022 9/22/2022 I-131

<MDA

<MDA 9/22/2022 9/29/2022 I-131

<MDA

<MDA 9/29/2022 10/6/2022 I-131

<MDA

<MDA 10/6/2022 10/13/2022 I-131

<MDA

<MDA 10/13/2022 10/21/2022 I-131

<MDA

<MDA 10/21/2022 10/27/2022 I-131

<MDA

<MDA 10/27/2022 11/3/2022 I-131

<MDA

<MDA 11/3/2022 11/10/2022 I-131

<MDA

<MDA 11/10/2022 11/17/2022 I-131

<MDA

<MDA 11/17/2022 11/23/2022 I-131

<MDA

<MDA 11/23/2022 11/30/2022 I-131

<MDA

<MDA 11/30/2022 12/8/2022 I-131

<MDA

<MDA 12/8/2022 12/15/2022 I-131

<MDA

<MDA 12/15/2022 12/22/2022 I-131

<MDA

<MDA 12/22/2022 12/29/2022 I-131

<MDA

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 87 1/4/2022 1/13/2022 3.0

+/-

0.2 3.1

+/-

0.4 1/13/2022 1/20/2022 2.8

+/-

0.2 2.3

+/-

0.5 1/20/2022 1/28/2022 2.6

+/-

0.2 2.6

+/-

0.5 1/28/2022 2/2/2022 2.4

+/-

0.3 2.4

+/-

0.6 2/2/2022 2/9/2022 1.9

+/-

0.2 1.8

+/-

0.4 2/9/2022 2/17/2022 2.2

+/-

0.2 1.8

+/-

0.4 2/17/2022 2/23/2022 1.9

+/-

0.2 2.4

+/-

0.5 2/23/2022 3/2/2022 2.8

+/-

0.2 2.3

+/-

0.5 3/2/2022 3/10/2022 2.5

+/-

0.3 2.0

+/-

0.4 3/10/2022 3/17/2022 2.8

+/-

0.3 2.3

+/-

0.5 3/17/2022 3/24/2022 1.9

+/-

0.2 1.9

+/-

0.5 3/24/2022 3/31/2022 1.5

+/-

0.2 1.5

+/-

0.4 3/31/2022 4/7/2022 1.7

+/-

0.2 1.6

+/-

0.4 4/7/2022 4/14/2022 1.5

+/-

0.2 1.4

+/-

0.4 4/14/2022 4/21/2022 1.7

+/-

0.2 1.1

+/-

0.4 4/21/2022 4/28/2022 2.2

+/-

0.2 2.5

+/-

0.5 4/28/2022 5/5/2022 2.6

+/-

0.2 2.5

+/-

0.5 5/5/2022 5/12/2022 2.2

+/-

0.2 2.0

+/-

0.5 5/12/2022 5/19/2022 1.2

+/-

0.2 1.4

+/-

0.4 5/19/2022 5/26/2022 2.7

+/-

0.3 2.2

+/-

0.5 5/26/2022 6/2/2022 1.6

+/-

0.3 1.8

+/-

0.4 6/2/2022 6/9/2022 2.3

+/-

0.2 2.0

+/-

0.4 6/9/2022 6/16/2022 2.3

+/-

0.2 2.1

+/-

0.5 6/16/2022 6/23/2022 2.5

+/-

0.2 1.4

+/-

0.4 6/23/2022 6/29/2022 1.9

+/-

0.3

<MDA 6/29/2022 7/7/2022 2.4

+/-

0.2 2.2

+/-

0.4 7/7/2022 7/14/2022 2.5

+/-

0.2 2.5

+/-

0.5 7/14/2022 7/21/2022 3.1

+/-

0.2 2.7

+/-

0.5 7/21/2022 7/28/2022 3.4

+/-

0.2 3.3

+/-

0.5 Table C-2b Results of Quality Assurance Program Co-Located Air Samplers 1Z and 1A Concentration of Beta Emitters in Air Particulates (Results in units of 10-2 pCi/m3 +/- 2)

Start Date Stop Date 1Z 1A Analysis by CGS Analysis by TBE

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 88 1Z 1A Start Date Stop Date Analysis by CGS Analysis by TBS 7/28/2022 8/4/2022 3.0

+/-

0.3 2.4

+/-

0.5 8/4/2022 8/11/2022 2.1

+/-

0.3 1.8

+/-

0.4 8/11/2022 8/18/2022 3.0

+/-

0.2 2.3

+/-

0.5 8/18/2022 8/25/2022 2.6

+/-

0.2 2.5

+/-

0.5 8/25/2022 9/1/2022 2.8

+/-

0.2 3.4

+/-

0.5 9/1/2022 9/8/2022 2.1

+/-

0.3 1.6

+/-

0.4 9/8/2022 9/15/2022 2.6

+/-

0.2 2.1

+/-

0.4 9/15/2022 9/22/2022 4.7

+/-

0.3 3.5

+/-

0.5 9/22/2022 9/29/2022 2.5

+/-

0.2 1.4

+/-

0.4 9/29/2022 10/6/2022 1.8

+/-

0.2

<MDA 10/6/2022 10/13/2022 4.2

+/-

0.3 3.7

+/-

0.6 10/13/2022 10/21/2022 2.8

+/-

0.2 2.8

+/-

0.5 10/21/2022 10/27/2022 2.8

+/-

0.3 2.1

+/-

0.5 10/27/2022 11/3/2022 3.0

+/-

0.3 2.0

+/-

0.4 11/3/2022 11/10/2022 2.9

+/-

0.2 2.1

+/-

0.4 11/10/2022 11/17/2022 2.0

+/-

0.2 1.6

+/-

0.4 11/17/2022 11/23/2022 4.1

+/-

0.3 2.7

+/-

0.5 11/23/2022 11/30/2022 5.1

+/-

0.3 3.2

+/-

0.6 11/30/2022 12/8/2022 4.4

+/-

0.3 3.2

+/-

0.4 12/8/2022 12/15/2022 3.0

+/-

0.2 2.4

+/-

0.4 12/15/2022 12/22/2022 3.0

+/-

0.2 2.7

+/-

0.4 12/22/2022 12/29/2022 4.1

+/-

0.3 3.3

+/-

0.6

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 89 1 See discussion at the beginning of the Appendix Table C-2c Results of Quality Assurance Program 4L Analyzed by Primary and QC Laboratories Concentration of Beta Emitters in Water (Results in units of pCi/L +/- 2)

Start Date Stop Date 4L Analysis by CGS 4L Split NRC Acceptance 1 Analysis by TBE 1/04/2022 2/02/2022 1.10 +/- 0.72

<1.96 Pass 2/02/2022 3/02/2022 1.60 +/- 0.77

<2.49 Pass 3/02/2022 3/31/2022 1.91 +/- 0.79

<1.80 Pass 3/31/2022 4/28/2022 1.21 +/- 0.77

<1.97 Pass 4/28/2022 6/2/2022 1.83 +/- 0.75 2.0 +/- 1.38 Pass 6/02/2022 6/29/2022 1.51 +/- 0.79

<2.11 Pass 6/29/2022 7/28/2022 2.34 +/- 0.51 2.8 +/- 1.46 Pass 7/282022 9/01/2022 5.76 +/- 0.44 3.42 +/- 1.92 Pass 9/01/2022 9/29/2022 2.41 +/- 0.81 3.32 +/- 1.63 Pass 9/29/2022 11/3/2022 1.97 +/- 0.78 2.21 +/- 1.31 Pass 11/3/2022 11/30/2022 2.62 +/- 0.77

<2.14 Pass 11/30/2022 12/29/2022 1.07 +/- 0.66

<2.18 Pass

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 90 TABLE C-3 Peach Bottom Atomic Power Station ODCM Required LLDs Selected Water Fish/Shellfish Milk Sediment Vegetation Particulates Nuclides pCi/l pCi/kg pCi/L pCi/kg pCi/kg pCi/m3 Gross Beta 4

0.01 H-3 2000 Mn-54 15 130 Co-58 15 130 Fe-59 30 260 Co-60 15 130 Zn-65 30 260 Zr-95 30 Nb-95 15 I-131 1

60 0.071 Cs-134 15 130 15 150 60 0.05 Cs-137 18 150 18 180 80 0.06 Ba-140 60 60 La-140 15 15 1 Air samples for I-131 are collected separately on a charcoal radioiodine cannister

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 91 APPENDIX D Land Use Survey Appendix D contains the results of a Land Use Survey conducted in the fall of 2022 around PBAPS performed by Constellation Generation Solutions to comply with Section 3.8.E.2 of PBAPS ODCM Specifications. The survey documented the nearest milk-producing and meat animal, nearest residence, and garden larger than 500 square feet in each of the sixteen meteorological sectors out to five miles.

Also, because PBAPS is an elevated release facility, an additional requirement of identifying all gardens larger than 500 square feet and every dairy operation within three (3) miles was included in the survey. The distance and direction of all locations were positioned using Global Positioning System (GPS) technology. The results of this survey are summarized below.

There was no change in nearest residents compared to the 2021 report. There were gardens identified in all sectors except the NNW sector. Eleven (11) new gardens were located this year in SSE, S, WSW, W, WNW, and NW sectors within three (3) miles of the PBAPS release vents.

The nearest garden in the NW sector has been updated from the 2021 report; all other sectors are the same as in the 2021 report.

Animals used for meat consumption were identified in all 16 sectors. One (1) new site was identified this year in E sector, within the three (3) mile radius of PBAPS. One (1) new site was identified this year in N sector, within three (5) miles of the PBAPS. The nearest meat animal in the E sector and has been updated from the 2021 report. The nearest animal in all other sectors remains the same as in last years report. Dairy sites were identified in 13 of 16 sectors. There were two (2) new dairy sites observed in the NNE sector within the three (3) mile radius of the Peach Bottom vents. There were no changes in the nearest milk-producing animal in any sector.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 92 Table D-1 Land Use Survey Distance of the Nearest Residence, Garden, Dairy, Meat Animal within a Five Mile Radius of Peach Bottom Atomic Power Station (Distance in feet) 2022

Sector Residence Garden<1>

Milk Animal Meat Animal N

12,362 14,003 14,183 14,183 NNE 11,112 11,041 10,843 10,843 NE 10,080 10,004 10,492 10,080 ENE 10,495 11,554 10,925*

10,925 E

10,066 14,540 14,471 14,995 ESE 16,085 19,109 20,154 16,085 SE 10,772 10,772 19,134*

19,134 SSE 3,912 3,912 s

5,545 5,545 9,247 SSW 6,072 6,418 11,602 7,187 SW 4,755 4,865 4,860*

4,860 WSW 4,036 7,487 4,204 w

5,327 5,327 5,136*

5,136 WN\\'V 2,928 4,192 22,124 3,926 NW 2,948 4,806 9,545 4,806 NN\\V 5,124 5,124

())Larger than 500 square feet (as can best be determined from a distance)

Denotes current REMP milk sample location Red Denotes the site/site information has been updated from the previous year's Land Use Census

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 93 Figure D-1 Peach Bottom Atomic Power Station Land Use Census

~.,,.-*

I l

SW ylu o1

\\

I 7

c* Se,-._,1.,fw

~ ~

&d. HER£.o-.n. 1""~~P

aw,. t"Moi,;Kcrg,.""~

~~~.-lh OIO N t G=GMden R - Residence 0* O.,lry M ~ Meat 0

O,S N

5 MU* Radius

~

NORMANDEAU ASSOCIATES

\\

NNE\\

NE

/'.. \\

.,,. J

('

,;r i

\\

j Peach Bottom Atomic Power Station Land Use Survey 2022 Dale.

1/Sl2023 Rewsed.

4000kl Read.-.OPM BUclA SI.rte 1<11 s.ov.e, ~ 19464

~EOl='()A:\\\\l. PAOJEC'e~.G:16 PA9AA£'08Y:SAS

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 94 APPENDIX E Annual Radiological Groundwater Protection Program Report I.

Summary and Conclusions This report on the Radiological Groundwater Protection Program (RGPP) conducted for the Peach Bottom Atomic Power Station (PBAPS) by Constellation Nuclear covers the period 01 January 2022 through 31 December 2022. This evaluation involved numerous station personnel and contractor support personnel. At PBAPS, there are 31 permanent groundwater monitoring wells. Installation of the wells began in 2006. Of these monitoring locations, none are assigned to the stations Radiological Environmental Monitoring Program (REMP). This report covers groundwater, surface water, seep water, and precipitation water samples collected from the environment on station property in 2022.

During that time period, 252 analyses were performed on 108 samples from 36 locations.

These 36 locations include 24 groundwater monitoring wells, 2 groundwater seeps, 2 yard drain sumps, and 8 precipitation water sampling points. Phase 1 of the monitoring was part of a comprehensive study initiated by Constellation to determine whether groundwater or surface water in the vicinity of PBAPS had been adversely impacted by any releases of radionuclides. Phase 1 was conducted by Conestoga Rovers and Associates (CRA) and the conclusions were made available to state and federal regulators as well as the public.

Phase 2 of the RGPP was conducted by Constellation corporate and station personnel to initiate follow up of Phase 1 and begin long-term monitoring at groundwater and surface water locations selected during Phase 1. All analytical results from Phase 2 monitoring are reported herein.

Samples supporting the RGPP were analyzed for tritium (H-3), strontium-89 (Sr-89),

strontium-90 (Sr-90), gamma-emitting radionuclides associated with licensed plant operations and isotopes known as hard to detects.

Based on the review of the data collected during the 2022 RGPP sampling rounds AMO Environmental Decisions concludes:

Monthly sampling of MW-PB-24, MW-PB-25, MW-PB-26, and MW-PB-27 was completed in 2022 to monitor tritium concentrations in the area of MW-PB-25. In 2022, The average tritium concentration in samples collected from MW-PB-25 was approximately 7,400 pCi/L.

The 3rd quarter 2022 RGPP sample collected from MW-PB-30 had a reported tritium concentration of 37,300 pCi/L. A subsequent sample was collected from MW-PB-30 on October 1, 2022 and the tritium result was 563 pCi/L, which reflected historic tritium concentrations in this well. The 4th quarter sample collected from MW-PB-30 had a tritium concentration of 683 pCi/L. However, the tritium concentration increased to 19,100 pCi/L in a subsequent sample collected in the middle of December 2022. An additional sample was

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 95 collected from MW-PB-30 in the beginning of January 2023 and the concentration decreased to 1,880 pCi/L. It was recommended that the Station sample MW-PB-30, as well as nearby wells MW-PB-29 and MW-PB-31, monthly to more closely monitor tritium concentrations in the area of this well. According to Station personnel, a tritium Hit Team was formed to evaluate potential tritium sources in the area of this well.

Gross-alpha analysis was most recently performed on Source and Long-Term Shutdown designated wells, during the 2nd quarter 2022 RGPP sampling round. Gross-alpha (suspended) results from samples collected from MW-PB-16 and MW-PB-27 exceeded the respective Alert Levels for the monitoring wells. Therefore, the samples from these wells required select transuranic analysis. All Long-Term Shutdown and Source designated wells will have gross-alpha analysis performed again in 2024.

The 2nd quarter 2022 RGPP samples collected from MW-PB-25 and MW-PB-27 were analyzed for select transuranics. U-233/234 and U-238 were detected in both samples. The U-233/234 concentrations ranged between 0.6368 pCi/L (MW-PB-25) and 5.603 pCi/L (MW-PB-27). The U-238 concentrations ranged between 0.3184 pCi/L (MW-PB-25) and 2.287 pCi/L (MW-PB-27). The Uranium detections are attributed to naturally occurring radioactivity. Additionally, to satisfy the American Nuclear Insurers (ANI) request, the well with the highest average gross-alpha (dissolved) concentration (MW-PB-16) was analyzed for select transuranics during the 2nd quarter 2022. No select transuranics were detected in the sample collected from MW-PB-16.

The sample collected from MW-PB-30 was analyzed for select transuranics during the 4th quarter 2022 due to an unexpected increase in tritium concentration during the 3rd quarter 2022 RGPP sampling round. No select transuranics were detected in the sample collected from MW-PB-30 during the 4th quarter 2022.

Gamma-radionuclides were not detected at concentrations greater than their respective LLDs in 2022. Gamma-radionuclides and gross-alpha analyses will be performed again in 2024.

Sr-89 and Sr-90 were not detected at concentrations greater than their respective LLDs in 2022.

Hard-to-detects (Fe-55 and Ni-63) were not detected at concentrations greater than their respective LLDs in 2021. Hard-to-detects (Fe-55 and Ni-63) analyses will be performed on samples collected from Long-Term Shutdown designated wells in 2023 and Source designated wells in 2026.

Tritium present in precipitation recapture was not likely to affect groundwater quality in the vicinity of the PBAPS in 2022.

The wells sampled effectively monitored groundwater conditions at the facility.

In assessing all the data gathered for this report, it was concluded that the station conformed with its RGPP in 2022 with respect to sampling protocol and the operation of PBAPS had no adverse radiological impact on the environment offsite of PBAPS.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 96 II. Introduction PBAPS is located along the Susquehanna River between Holtwood and Conowingo Dams in Peach Bottom Township, York County, Pennsylvania. The initial loading of fuel into Unit 1, a 40 MWe (net) high temperature gas-cooled reactor, began on 5 February 1966, and initial criticality was achieved on 3 March 1966. Shutdown of Peach Bottom Unit 1 for decommissioning was on 31 October 1974. For the purposes of the monitoring program, the beginning of the operational period for Unit 1 was considered to be 5 February 1966. A summary of the Unit 1 preoperational monitoring program was presented in a previous report (1). PBAPS Units 2 and 3 are boiling water reactors, each with a power output of approximately 1385 MWe. The first fuel was loaded into Peach Bottom Unit 2 on 9 August 1973. Criticality was achieved on 16 September 1973 and full power was reached on 16 June 1974. The first fuel was loaded into Peach Bottom Unit 3 on 5 July 1974. Criticality was achieved on 7 August 1974 and full power was first reached on 21 December 1974.

Preoperational summary reports (2)(3) for Units 2 and 3 have been previously issued and summarize the results of all analyses performed on samples collected from 5 February 1966 through 8 August 1973.

This report covers those analyses performed by Teledyne Brown Engineering (TBE) and GEL Laboratories (GEL) on samples collected in 2022.

A. Objective of the RGPP

1. Ensure that the site characterization of geology and hydrology provides an understanding of predominant groundwater gradients based upon current site conditions.

2. Identify site risk based on plant design and work practices.

3. Establish an on-site groundwater monitoring program to ensure timely detection of inadvertent radiological releases to ground water.

4. Establish a remediation protocol to prevent migration of licensed material off-site and to minimize decommissioning impacts.

5. Ensure that records of leaks, spills, remediation efforts are retained and retrievable to meet the requirements of 10 CFR 50.75(g).

6. Conduct initial and periodic briefings of their site specific Groundwater Protection Initiative (GPI) program with the designated State/Local officials.

7. Make informal communication as soon as practicable to appropriate State/Local officials, with follow-up notifications to the NRC, as appropriate, regarding significant on-site leaks/spills into groundwater and on-site or off-site water sample results exceeding the criteria in the REMP as described in the Offsite Dose Calculation Manual (ODCM).

8. Submit a written 30-day report to the NRC for any water sample result for on-site groundwater that is or may be used as a source of drinking water that exceeds any of the criteria in the licensees existing REMP/ODCM for 30-day reporting of off-site water sample results.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 97

9. Document all on-site groundwater sample results and a description of any significant on-site leaks/spills into groundwater for each calendar year in the Annual Radiological Environmental Operating Report (AREOR) for REMP or the Annual Radioactive Effluent Release Report (ARERR).

10. Perform a self-assessment of the GPI program.

11. Conduct a review of the GPI program, including at a minimum the licensee's self-assessments, under the auspices of the Nuclear Energy Institute (NEI).

B. Implementation of the Objectives The objectives identified have been implemented at PBAPS via Constellation Corporate and Site specific procedures. These procedures include:

1. EN-AA-407, Response to Inadvertent Releases of Licensed Materials to Groundwater, Surface Water, Soil or Engineered Structures

2. EN-AA-408, Radiological Groundwater Protection Program

3. EN-AA-408-4000, Radiological Groundwater Protection Program Implementation

4. EN-PB-408-4160, RGPP Reference Material for Peach Bottom Atomic Power Station C. Program Description Samples for the ongoing ground water monitoring program were collected by Constellation Generation Solutions (CGS). This section describes the general collection methods used to obtain environmental samples for the PBAPS RGPP in 2022. Sample locations can be found in Table E-1, Appendix E.

Samples of water are collected, managed, transported and analyzed in accordance with approved procedures. Sample locations, sample collection frequencies and analytical frequencies are controlled in accordance with approved station procedures. Contractor and/or station personnel are trained in the collection, preservation management and shipment of samples, as well as in documentation of sampling events. Analytical laboratories are subject to internal quality assurance programs, industry cross-check programs, as well as nuclear industry audits. Station personnel review and evaluate all analytical data deliverables as data are received.

Analytical data results are reviewed by both station personnel and an independent hydrogeologist for adverse trends or changes to hydrogeologic conditions.

D. Characteristics of Tritium (H-3)

Tritium is a radioactive isotope of hydrogen. The most common form of tritium is tritium oxide, which is also called "tritiated water." The chemical properties of tritium are essentially those of ordinary hydrogen.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 98 Tritiated water behaves the same as ordinary water in both the environment and the body. Tritium can be taken into the body by drinking water, breathing air, eating food, or absorption through skin. Once tritium enters the body, it disperses quickly and is uniformly distributed throughout the body. Tritium is excreted primarily through urine with a clearance rate characterized by an effective biological half-life of about 14 days.

Within one month or so after ingestion, essentially all tritium is cleared. Organically bound tritium (tritium that is incorporated in organic compounds) can remain in the body for a longer period.

Tritium is produced naturally in the upper atmosphere when cosmic rays strike air molecules. Tritium is also produced during nuclear weapons explosions, as a by-product in reactors producing electricity, and in special production reactors, where the isotopes lithium-7 and/or boron-10 are activated to produce tritium. Like normal water, tritiated water is colorless and odorless. Tritiated water behaves chemically and physically like non-tritiated water in the subsurface, and therefore tritiated water will travel at the same velocity as the average groundwater velocity.

Tritium has a half-life of approximately 12.3 years. It decays spontaneously to helium-3 (3He). This radioactive decay releases a beta particle (low-energy electron). The radioactive decay of tritium is the source of the health risk from exposure to tritium.

Tritium is one of the least dangerous radionuclides because it emits very weak radiation and leaves the body relatively quickly. Since tritium is almost always found as water, it goes directly into soft tissues and organs. The associated dose to these tissues is generally uniform and is dependent on the water content of the specific tissue.

III. Program Description A. Sample Analysis This section describes the general analytical methodologies used by TBE and GEL to analyze the environmental samples for radioactivity for the PBAPS RGPP in 2022.

In order to achieve the stated objectives, the current program includes the following analyses:

1. Concentrations of gamma emitters in groundwater.

2. Concentrations of strontium in groundwater.

3.

Concentrations of tritium in groundwater, surface water and precipitation water.

4.

Concentrations of 'hard-to-detect' isotopes, Am-241, Cm-242, Cm-243, Cm-244, Pu-238, Pu-239, Pu-240, U-233, U-234, U-235, U-238, Fe-55, and nickel-63 Ni-63 in groundwater. These analyses are required based on historical tritium results.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 99 B. Data Interpretation The radiological data collected prior to PBAPS becoming operational were used as a baseline for operational data comparison. For the purpose of this report, PBAPS was considered operational at initial criticality. Several factors were important in the interpretation of the data:

1. Lower Limit of Detection The lower limit of detection (LLD) is a minimum sensitivity value that must be achieved routinely by the analytical parameter.

2. Laboratory Measurements Uncertainty The estimated uncertainty in measurement of tritium in environmental samples is frequently on the order of 50% of the measurement value.

Statistically, the exact value of a measurement is expressed as a range with a stated level of confidence. The convention is to report results with a 95%

level of confidence. The uncertainty comes from factors such as calibration standards, sample volume or weight measurements, and sampling uncertainty.

Constellation reports the uncertainty of a measurement created by statistical process (counting error) as well as all sources of error (Total Propagated Uncertainty or TPU). Each result has two values calculated. Constellation reports the TPU by following the result with plus or minus (+/-) the estimated sample standard deviation. Analytical uncertainties are reported at the 95%

confidence level in this report for reporting consistency with the AREOR.

Groundwater was analyzed using gamma spectroscopy for the following isotopes: Mn-54, Co-58, Co-60, Fe-59, Zn-65, Nb-95, Zr-95, I-131, Cs-134, Cs-137, Ba-140 and La-140.

C. Background Analysis A pre-operational REMP was conducted to establish background radioactivity levels prior to operation of the Station. The environmental media sampled and analyzed during the pre-operational REMP were atmospheric radiation, fall-out, domestic water, surface water, marine life and foodstuffs. The results of the monitoring were detailed in References 2 and 3. The pre-operational REMP contained analytical results from samples collected from the surface water, discharge, well water and rainwater.

1. Background Concentrations of Tritium The purpose of the following discussion is to summarize background measurements of tritium in various media performed by others. Additional detail may be found by consulting references (CRA 2006)(1).

a. Tritium Production Tritium is created in the environment from naturally occurring processes both cosmic and subterranean, as well as from anthropogenic (i.e., man-made) sources. In the upper atmosphere, Cosmogenic tritium is produced from the bombardment of stable nuclides and combines with

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 100 oxygen to form tritiated water, which will then enter the hydrologic cycle. Below ground, lithogenic tritium is produced by the bombardment of natural lithium present in crystalline rocks by neutrons produced by the radioactive decay of naturally abundant uranium and thorium. Lithogenic production of tritium is usually negligible compared to other sources due to the limited abundance of lithium in rock. The lithogenic tritium is introduced directly to groundwater.

A major anthropogenic source of tritium and Sr-90 comes from the former atmospheric testing of thermonuclear weapons. Levels of tritium in precipitation increased significantly during the 1950s and early 1960s and later with additional testing, resulting in the release of significant amounts of tritium to the atmosphere. The Canadian heavy water nuclear power reactors, other commercial power reactors, nuclear research and weapons production continue to influence tritium concentrations in the environment.

b. Precipitation Data Precipitation monitoring was done at PBAPS until 2006. These types of samples are routinely collected at stations around the world for the analysis of tritium and other radionuclides. Two publicly available databases that provide tritium concentrations in precipitation are Global Network of Isotopes in Precipitation (GNIP) and USEPAs RadNet database. GNIP provides tritium precipitation concentration data for samples collected worldwide from 1960 to 2006. RadNet provides tritium precipitation concentration data for samples collected at stations throughout the U.S. from 1960 up to and including 2006. Based on GNIP data for sample stations located in the U.S. Midwest, tritium concentrations peaked around 1963. This peak, which approached 10,000 pCi/L for some stations, coincided with the atmospheric testing of thermonuclear weapons. Tritium concentrations in surface water showed a sharp decline until 1975. A gradual decline has followed since that time. Tritium concentrations have typically been below100 pCi/L since around 1980. Tritium concentrations in wells may still be above the 200 pCi/L detection limit from the external causes described above. Water from previous years and decades is naturally captured in groundwater, so some well water sources today are affected by the surface water from the 1960s that was elevated in tritium.

c. Surface Water Data Surface water level measurements were collected at the surface water monitoring locations during the groundwater level measurement event. The purpose of the surface water monitoring was to provide surface water elevation data to evaluate the groundwater/surface water interaction at the Station.

The USEPA RadNet surface water data typically has a reported Combined Standard Uncertainty of 35 to 50 pCi/L. According to USEPA, this corresponds to a +/- 70 to 100 pCi/L 95% confidence bound on each

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 101 given measurement. Therefore, the typical background data provided may be subject to measurement uncertainty of approximately +/- 70 to 100 pCi/L.

The radio-analytical laboratory is counting tritium results to an Constellation-specified LLD of 200 pCi/L. Typically, the lowest positive measurement will be reported within a range of 40 - 240 pCi/L or 140 +/- 100 pCi/L.

Clearly, these sample results cannot be distinguished as different from background at this concentration.

The Constellation fleet-wide and Peach Bottom RGPP was modified at the beginning of 2020. Changes to the RGPP included sample locations, frequency, and the removal of surface water sampling.

IV. Results and Discussion A. Groundwater Results Samples were collected from onsite wells throughout the year in accordance with the station RGPP. Analytical results and anomalies are discussed below:

Tritium Samples from 26 locations were analyzed for tritium activity. (Appendix E, Table E-9) Tritium values ranged from non-detectable to 37,300 pCi/L. There is no drinking water pathway available from these groundwater sample locations.

Strontium Samples from 15 locations, Monitoring Wells and Yard drains, were analyzed for Sr-89 and Sr-90. All results were below the required LLDs. (Appendix E, Table E-6)

Gross Alpha (dissolved and suspended)

Samples from 15 locations, Monitoring Wells and Yard drains, were analyzed for gross alpha. Gross alpha activity ranged from non-detectable to 41.2 pCi/L in 2022.

(Appendix E, Table E-8)

Select Transuranics Samples from 4 locations were analyzed for select transuranics in 2022 as required for RGPP locations that were previously identified as elevated. U-233/234 and U-238 were detected in MW-PB-25 and MW-PB-27. The U-233/234 concentrations ranged from 0.6368 pCi/L (MW-PB-25) to 5.603 pCi/L (MW-PB-27). The U-238 concentrations ranged from 0.3184 pCi/L (MW-PB-25) to 2.287 pCi/L (MW-PB-27).

Additionally, to satisfy the ANI request, the well with the highest average gross-alpha (dissolved) concentration (MW-PB-16) was analyzed for select transuranics during the

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 102 2nd quarter 2022. No select transuranics were detected in the sample collected from MW-PB-16. (Appendix E, Table E-7)

Gamma Emitters 28 locations were analyzed for gamma emitting nuclides were performed in 2022, All results were below the required LLDs. (Appendix E, Table E-11)

Hard-To-Detect HTD analyses were performed in 2022 on 6 groundwater locations. There were no detects and all results were below the required LLDs. (Appendix E, Table E-5)

B. Precipitation Sample Results Tritium Tritium activity was detected in 17 of 21 samples collected from 8 precipitation water locations. The concentrations ranged from below LLD, <176 pCi/L to 748 pCi/L. These concentrations are consistent with historical values observed.

(Appendix E, Table E-10)

C. Drinking Water Well Survey A drinking water well survey was conducted during the summer 2006 by CRA (CRA 2006)(1) around PBAPS. The water well inventory was updated in 2022(4).

The updated water well database search indicated a new water well off PBAPS property within a one mile radius. The well is described as a test well and its use is listed as unused. In summary, there were no significant changes in off Station groundwater use from 2006-2022.

D. Summary of Results - Inter-Laboratory Comparison Program Inter-Laboratory Comparison Program results for TBE and GEL are presented in the AREOR.

E. Leaks, Spills and Releases The 4th quarter sample collected from MW-PB-30 had a tritium concentration of 683 pCi/L. However, the tritium concentration increased to 19,100 pCi/L in a subsequent sample collected in the middle of December 2022.

Station personnel performed an investigation to identify the potential source of the elevated tritium concentrations in MW-PB-30.

Station personnel identified a steam leak in the Unit 2 Moisture Separator Room. The steam leak normally discharges to the atmosphere through the Stations monitored ventilation system. According to Station personnel, during heavier rain events, the roof drain piping, which passes through the Moisture Separator Room, becomes cold

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 103 and liquid condenses from the humidity generated by the steam leak. The condensate pools within the Moisture Separator Room and flows to the sump within the room.

Station personnel constructed a containment around the sump to stop condensate from entering the pit.

The Station will sample this well, as well as nearby wells MW-PB-29 and MW-PB-31, monthly to more closely monitor tritium concentrations in the area of this well.

According to Station personnel, a tritium Hit Team was formed to evaluate potential tritium sources in the area of this well.

F. Trends A tritium plume has been identified northeast of the Unit 3 Turbine Building. The plume extends eastward toward well MW-PB-4. The plume is bounded on the north by wells MW-PB-12 and MW-PB-22. The plume is bounded on the south by wells MW-PB-20 and MW-PB-21.

The tritium plume is a result of licensed material entering the groundwater through degraded floor seams and penetration seals in the Unit 3 Turbine Building. The activity currently detected in the Unit 3 Turbine Building monitoring wells, MW-PB-24, 25, 26 and 27, is the result of legacy licensed material under the turbine building being transported eastward by natural hydrogeologic groundwater flow.

Tritium activity in the Unit 3 Turbine Building monitoring wells are trended. Any adverse trend is captured in the Stations Corrective Action Program. During the 4th quarter 2020, the tritium concentration unexpectedly increased in the samples collected from Unit 3 Yard Drain and bedrock aquifer well MW-PB-28, from less than 200 pCi/L to 1,670 pCi/L and 1,540 pCi/L, respectively. An additional sample was collected from both locations in the middle of January 2021. The tritium concentration in the sample collected from Unit 3 Yard Drain increased to 2,850 pCi/L and the tritium concentration in the sample collected from MW-PB-28 increased to 3,690 pCi/L. Tritium concentrations in the area of MW-PB-28 and Unit 3 Yard Drain decreased to less than 400 pCi/L by the end of 2021.

G. Investigations MW-PB-4 In 2006, monitoring wells MW-PB-1 through MW-PB-14 were installed. Tritium activity was detected in MW-PB-4, located north of the Unit 3 Circulating Water Pump Structure and MW-PB-12, north of the Administration Building.

Groundwater flow on site is from west to east. Monitoring wells were installed to the west, southwest and northwest of monitoring wells MW-PB-4 and MW-PB-

12. The wells with the highest tritium activity are the wells installed directly east of and adjacent to the Unit 3 Turbine Building, wells MW-PB-24, 25, 26 and 27.

Investigation of potential sources identified that the likely source of groundwater contamination was due to degraded floor seams in the Unit 3 Turbine Building Moisture Separator area 116' elevation. Leaks internal to the building entered the groundwater through the degraded floor seams. The floor seams were repaired in

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 104 August 2010. The floor in the Unit 3 Turbine Building Moisture Separator area 116' elevation was sealed and recoated in October 2011.

MW-PB-29, 30 and 31 An extent-of-condition inspection of the Unit 2 Turbine Building Moisture Separator area 116' elevation floor was performed in October 2010. Minor degradation of the floor seams was identified and repaired. In May 2011, monitoring wells MW-PB-29 and 30 were installed directly east of and adjacent to the Unit 2 Turbine Building; MW-PB-31 was installed southeast of and adjacent to the Unit 2 Turbine Building. These wells were installed to determine if a condition existed east of the Unit 2 Turbine Building that is similar to the condition east of the Unit 3 Turbine Building.

Tritium activity in these wells ranged from less than the MDC to 2,720 pCi/L.

Samples from these wells were also analyzed for gamma-emitting isotopes and hard-to-detect radionuclides. All results are less than the MDC for each isotope.

The Unit 2 Turbine Building Moisture Separator floor 116' elevation floor was sealed and recoated in October 2012. Groundwater intrusion into a ventilation pit on the east side of the area was identified. The groundwater was removed and degraded seams in the ventilation pit were successfully repaired.

MW-PB-24, 25, 26 and 27 Wells MW-PB-24, 25, 26 and 27 are considered the wells of primary interest. These wells were sampled on a frequency ranging from weekly to quarterly. Below are 3 tables. The first lists the highest tritium activity of the wells of primary interest and the date of the sampling. The second table lists the highest tritium activity of the wells during 2022. The third table lists the activity of the wells from the last sampling of 2022.

The tritium activity is in pCi/L.

Well #

Tritium Activity Date MW-PB-24 1,530 06/06/2018 MW-PB-25 161,000 03/08/2010 MW-PB-26 196,000 03/08/2010 MW-PB-27 71,800 2/22/2010 Well #

Tritium Activity Date MW-PB-24 477 12/14/2022 MW-PB-25 17,100 12/14/2022 MW-PB-26 435 11/4/2022 MW-PB-27 775 12/14/2022 Well #

Tritium Activity Date MW-PB-24 477 12/14/2022 MW-PB-25 17,100 12/14/2022 MW-PB-26 356 12/14/2022 MW-PB-27 775 12/14/2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 105 Potential sources of tritium in the groundwater are investigated via procedural processes and documented in the corrective action program. The most likely pathway for tritium to enter the groundwater has been determined to be leaks internal to the Unit 3 Turbine Building Moisture Separator 116', migrating through degraded floor seams or other unidentified openings in the floor.

Monthly sampling of MW-PB-24, MW-PB-25, MW-PB-26, and MW-PB-27 was completed in 2022 to monitor tritium concentrations in the area of MW-PB-25. In 2022, the average tritium concentration in samples collected from MW-PB-25 was approximately 7,400 pCi/L. The Station will continue to sample MW-PB-25, as well as nearby wells MW-PB-24, MW-PB-26, and MW-PB27, on a monthly basis to monitor tritium concentrations in the area of MW-PB-25 and evaluate potential sources of the fluctuating tritium concentration in the area of the well.

MW-PB-28 Increased the monitoring frequency for MW-PB-28 in January of 2021 and started an investigation to ensure there were no active leaks. Investigation of the areas of the Unit 3 Yard Drains and MW-PB-28 identified tritium in the Torus Dewater Tank Moat as a result of a small packing leak. It was noted that the condition of the Torus Dewatering Tank Moat could allow for the leaking water to penetrate the concrete and seep into the ground.

H. Actions Taken

1. Installation of Monitoring Wells No new monitoring wells.

2. Actions to Recover/Reverse Plumes There were no actions to recover the plume.

3. Removed the tritiated water from the Torus Dewatering Tank Moat and repaired the packing leak. Sealed the cracks observed in the moat surface, temporarily recoated the moat and will be performing additional repairs to the moat in 2023.

Results have stabilized and the well is no longer sampled on an increased frequency. No new actions were required to recover or reverse groundwater plumes in 2022.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 106 I.

Deviations and Enhancements The data tables show that duplicate and split samples were obtained at several sample locations in 2022. These duplicate samples were obtained and analyzed for quality control purposes.

V. References

1. Conestoga Rovers and Associates, Fleetwide Assessment, Peach Bottom Atomic Power Station, Delta, PA, Fleetwide Assessment, Rev. 1, September 1, 2006.

2. Peach Bottom Atomic Power Station (PBAPS), Environs Radiation Monitoring Program, Preoperational Summary Report Units 2 and 3, June 1977.

3.

Peach Bottom Atomic Power Station (PBAPS), Environs Radiation Monitoring Program, Preoperational Summary Report Units 2 and 3, September 1970- August 1973, January 1974.

4.

Conestoga Rovers and Associates, Hydrogeologic Investigation Report, Peach Bottom Atomic Power Station, November 2022.

5.

AMO Environmental Decisions, 2022 Annual RGPP Monitoring Report Summary of Results and Conclusions Peach Bottom Generating Station Delta, Pennsylvania.

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 107 TABLE OF CONTENTS - ANALYTICAL RESULTS Table/Figure Title Page E-1 Locations of Onsite Radiological Groundwater Protection Program - Peach Bottom Atomic Power Station, 2022............................................................................................................... 108 E-2 Well Water Sample Locations for the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2022..................................................................................... 109 E-3 Radiological Groundwater Protection Program Monitoring Locations Peach Bottom Atomic Power Station, 2022............................................................................................................... 110 E-4 Routine Precipitation Sample Locations for the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2022.......................................................................... 111 E-5 Hard to Detects in Groundwater............................................................................................. 112 E-6 Concentration of Radiostrontium in Groundwater................................................................. 113 E-7 Alpha Isotopic and Transuranics in Groundwater.................................................................. 114 E-8 Gross Alpha Activity in Groundwater.................................................................................... 115 E-9 Concentration of Tritium in Groundwater.............................................................................. 116 E-10 Concentration of Tritium in Precipitation and Subsurface Drainage...................................... 117 E-11 Gross Concentration of Gamma Emitters in Groundwater and Subsurface Drainage........... 118

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 108 TABLE E-1 Locations of Onsite Radiological Groundwater Protection Program Peach Bottom Atomic Power Station, 2022 Site Sile.Type Sedor Distance (fl)

MW-PB-1 Groundwater Well SW 1,166.6 MW-PB-2 Groundwater Well WNW 309.0 MW-PB-3 Groundwater Well SSE 709.7 MW-PB-4 Groundwater Well ENE 350.2 MW-PB-5 Groundwater Well NNW 1,146.1 MW-PB-6 Groundwater Well NE 1,072.4 MW-PB-7 Groundwater Well SE 813.9 MW-PB-8 Groundwater Well SE 1,167.0 MW-PB-10 Groundwater Well SSE 1,125.1 MW-PB-12 Groundwaler Well NNE 317.2 MW-PB-13 Groundwater Well NW 329.4 MW-PB-15 Groundwater Well SE 1,037.9 MW-PB-16 Groundwater Well SE 1,101.6 MW-PB-19 Groundwater Well NW 226.8 MW-PB-20 Groundwater Well E

260.5 MW-PB-22 Groundwater Well NE 315.4 MW-PB-24 Groundwater Well N

185.9 MW-PB-25 Groundwater Well N

159.7 MW-PB-26 Groundwater Well NNE 121.1 MW-PB-27 Groundwater Well NNE 139.1 MW-PB-28 Groundwater Well NW 249.6 MW-PB-29 Groundwater Well SE 325.0 MW-PB-30 Groundwater Well SE 379.2 MW-PB-31 Groundwater Well SE 450:1 SW-PB-1 Surface Water NNW 2,850.5 SP-PB-1 Groundwater Seep s

514.2 SP-PB-2 Groundwater Seep WNW 311.6 U/2 YARD DRAIN SUMP Groundwater SSE 498.7 U/3 YARD DRAIN SUMP Groundwater WSW 175.8 PB-P1 Precipitation Water PB-P2 Precipitation Water PB-P3 Precipitation Water PB-P4 Precipitation Water PB-PS Precipitation Water PB-PS Precipitation Water PB-P7 Precipitation Water PB-PS Precipitation Water

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 109 Figure E-2 Well Water Sample Locations for the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2022 0

I-MILE RADIUS 0

4

.,."{,e.

2000ft

\\~

i6 fl*,.

fi 11 18.:

1000 2000ft

!6AC46 8ERTIER. IIICI-IARD 16 4 10 7 35180

64016 16413 1

!631121 183920 -*

11!8!!

16396&

l.1?1'5 COPPER, AC<3£ R FlifCH W,I; RHER

~

f Hl'l:l(ORV, ttlCKS HOSTSTTER. I 11¢'.*P SPS

~

E~

INF°ORiAATICJII CENTER

§~,W UTJliF¥/ieJ?

~~TH suesunoN

~~~i SHOOWtf

\\~\\:~:'i:..18 e:utcimi ~ 1 r* *1

xa..ON* -SOUfl,( !UBStt.TIOII

,, opZFUS Exelon!

~

fROPERTY BOUNDARY ff[ [bCAllONSAPPROXIMATE

~ OT FIELD VERIFIED)

Jc!ENilFIEO 'a,.( 2~

SEA~CH. -

NQT _10.ENTIFfEb' ON 2012 SEARCH

,u.r A8At4UON9El -

r e 6 EXELO}' SUP,P~Y~ (NO!'-POTABL~)

SOURCE USC3S OUAOAAIIGLE.\\11,P~

HOLTWOOO, PA* 159&

r I WAWEFIELO: PA: 1996 U Ll'A. t.10-.19!16.

COflO\\VJl,iGO--oAl,t 110* 19 !16

(

< 't'

,1

WATER WEL~ 1LOCATIONS

/PEACH

BOTTOM ATOMIC POWE"R STATION EXELON,GENERATION COMPANY, LLC Delta, Pennsylvania

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 110 Figure E-3 Radiological Groundwater Protection Program Monitoring Locations Peach Bottom Atomic Power Station, 2022

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 111 Figure E-4 Routine Precipitation Sample Locations for the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2022 Oo 0

=

Ex.pl;matio.n:.

R pture $.ample t.oc.:itions 2022 Pr.cil)ltallon tea 2022 Result >200 pCill 1 5 oollected in January and July

Pre<:ipit.ilion recaptvre $amp e Figure 3 2022 Precipitation Recap.tore Sample Locab~ns Corporation constellation Energy r Station Peach Bottom Genera,ng

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 112 Table E-5 Hard to Detects in Groundwater (Results in units of pCi/L +/- 2)

Station Sample Date Fe-55 Ni-63 MW-PB-8 MW-PB-8(Dup) 6/14/2022 6/14/2022

<59.6

<88

<4.34

<4.53 MW-PB-8(Split) 6/14/2022

<99.3

<28.5 MW-PB-10 6/14/2022

<156.4

<4.77 MW-PB-15 6/14/2022

<167.8

<4.41 MW-PB-15(Dup) 6/14/2022

<161

<4.53 MW-PB-15(Split) 6/14/2022

<98.4

<28.3 MW-PB-16 6/14/2022

<91.7

<4.1 MW-PB-16(Dup) 6/14/2022

<155.8

<4.3 MW-PB-16(Split) 6/14/2022

<100

<29.6 MW-PB-25 6/15/2022

<191.1

<4.73 MW-PB-30 10/01/2022

<157.6

<4.65

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 113 Table E-6 Concentration of Radiostrontium in Groundwater (Results in units of pCi/L +/- 2)

Location Sample Date SR-89 SR-90 l'"IW-PB -10 6/14/2022

< 6.84

< 0.882 i'"IW-PB -15 6/14/2022

< 8.75

< 0.89 l'"IW-PB -15(Dup) 6/14/2022

< 9.31

< 0.853 l'"IW-PB-15(Split) 6/14/2022

< 1.4

< 0.932 i'"IW-PB -16 6/14/2022

< 7.16

< 0.791 l'"IW-PB -16(Dup) 6/14/2022

< 7.32

< 0.635 l'"IW-PB-I 6(Split) 6/14/2022

< 1.67

< 0.947 i'"IW-PB -19 6/14/2022

< 9.69

< 0.904 i'"IW-PB -20 6/15/2022

< 9.42

< 0.896 i'"IW-PB -25 6/15/2022

< 7.55

< 0.951 i'"IW-PB -26 6/15/2022

< 8.99

< 0.994 i'"IW-PB -27 6/15/2022

< 7.83

< 0.873 i'"IW-PB -28 6/14/2022

< 7.26

< 0.836 i'"IW-PB -29 6/15/2022

< 8.26

< 0.874 i'"IW-PB -30 6/15/2022

< 7.61

< 0.854 i'"IW-PB -30 10/1/2022

< 6.49

< 0.873 i'"IW-PB -31 6/15/2022

< 7.28

< 0.902 l'"IW-PB-8 6/14/2022

< 8.51

< 0.842 l'"IW-PB-8(Dup) 6/14/2022

< 7.09

< 0.813 l'"IW-PB-8(Split) 6/14/2022

< 1.28

< 0.974 Unit 2 YARD DRAIN 6/24/2022

< 8.97

< 0.795 Unit 3 YARD DRAIN 6/14/2022

< 8.22

< 0.858

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 114

Table E-7 Alpha Isotopic and Transuranics in Groundwater (Results in units of pCi/L +/- 2)

Station Sample Datt A..\\1-241 (AS)

CM-242 (AS)

CM-243 '244 (AS)

PU-238 (AS) PU-239 240 (AS) U-233 234 (AS)

U-235 (AS)

U-238 (AS)

MW-PB-16 2/9/2022

< 0.1128

< 0.1117

< 0.1579

< 0.04658

< 0.1227

< 0.16S9

< 0.1778

< 0.1439 MW-PB-16 6/14/2022

< 0.0~28

< 0.07S99

< 0.01862

< 0.04076

< 0.07S93

< 0.06462

< 0.07988

< 0.09138 MW-PB-2S 6/15/2022

< 0.04137

< 0.02281

< 0.1011

< 0.06502

< 0.09195 0.6368~.2799

< 0.1.3!:l 0.3184! 0.19S MW-PB-27 6/1S/2022

< 0.06071

< 0.02199

< 0.091S6

< 0.0S24

< 0.09762 S.603+/-0.8468

< 0.0981 2.287+/-0.4811 MW-PB-30 10/ 1/2022

< 0.134

< 0.03219

< 0.01932

< 0.02364

< 0.0SS69

< 0.02966

< 0.03666

< 0.1452

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 115 Table E-8 Gross Alpha Activity in Groundwater (Results in units of pCi/L +/- 2)

Gl'ossAlpha Gross A_,ha Location Sample Date (Dissolud)

(Su.spend ed)

~V-PB-10 6114/2022

<0.94 3.04=1.14 MW-PB-15 6114/2022

< 0.902 1.62::0. 88 5

~V-PB-15(Dup) 6114/2022

< 0.909

< 0.816

~V-PB-15(Split) 6114/2022

<2.92

)lA M\\V-PB-16 6/14/2022 623:::13 25.7:3.1-6

~1W-PB-16(Dup) 6/14/2022 8.0:: 1.3 5 29:3.25

~fW-PB-16(Split) 6114/2022 29.9:::5.42

~A

~iW-PB-19 6114/2022

< 0.598

< 0.506

.-..ifW-PB-20 6/151.2022

< 3.8 0.978:0.626

~V-PB-25 6115/2022

< 1.15

< 0.795

~*fW-PB-26 6115/2022 1.82:!:0. 73

< 0.787

~V-PB-27 6'15/2022

2. 59:!:0. 83 41.2=3.75 MW-PB-28 6114/2022

< 0.545 221: l.05 W.V-PB-29 6115/2022

< 0.493

< 1.1 I

~ifW-PB-30 6115/2022

< 0.459 2.09=1.07 MW-PB-31 6115/2022

< 0.836

< 0.787 W.V-PB-8 6/14/2022

< 1.12 2.97=1.12 MW-PB-8(Dq>)

6/ 14/2022

< 0.934 1.97=0.96 MW-PB-8(S plit) 6114/2022

< 3.03

)lA Unit 2 YARD DRAIN 6/24/2022

< 0.783

< 0.816 Unit 3 YARD DR.ADI" 61141.2022

< 0.602

< 1.01

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 116 Table E-9 Concentration of Tritium in Groundwater (Results in units of pCi/L +/- 2)

ND - No Data, Sample obtained as required (Dup) -Sample analyzed in duplicate by TBE (Split) -Additional sample collected and analyzed for Quality Assurance by GEL Laboratories l.OC.ATION U1t1tl 'l:'ardlli11t 3]9+/-130 U1t1t 3 'l:'ardlli11t ND f08=1:i1 MW-PB-I ND

<192 ND MW-PB-'.l ND ND ND ND ND ND

<123 ND ND ND ND ND ND ND ND ND ND ND ND ND MVi'-PB-3 ND ND ND ND ND ND

<I-ND ND ND ND ND ND ND ND ND ND ND ND ND MVi'-PB-4 ND ND ND ND ND ND

<IRS ND ND ND ND ND ND ND ND ND ND 141)+/-131 ND ND MW-PB-5 ND ND ND ND ND ND

<181!

ND ND ND ND ND ND ND ND ND ND ND ND ND MVi'-PB-5 ND ND ND ND ND

<l 'illi ND ND ND ND ND ND ND ND ND ND ND ND ND ND MVi'-PB-ND ND ND ND ND

<U!:3 ND ND ND ND ND ND ND ND ND ND ND ND ND ND MVi'-PB-8 ND ND ND

>>1;!,124 ND 100+/-124 ND ND ND ND

<IL ND ND ND ND ND ND

<195 ND ND MW-PB-ll~

ND ND ND

<100 ND

<18:i ND ND ND ND

ND ND ND ND ND ND ND

<190 ND ND M'i\\lPB-f!'Split ND ND ND

<105 ND

<13 ND ND ND ND ND ND ND ND ND ND ND

<13 ND ND M'i\\lP:S.-10 ND ND ND

<195 ND

<178 ND ND ND ND

<Ia.S ND ND ND ND ND ND

<11!9 ND ND MW-PB-I Th.p ND ND ND ND ND ND ND ND ND ND

<11!8 ND ND ND ND ND ND

<~*§ ND ND MW-PB-I

plit ND ND ND ND ND ND ND ND ND ND

<141 ND ND ND ND ND ND

<144 ND ND M'i\\lP:S.-11 ND ND ND ND ND ND 393=131 ND ND ND ND ND ND ND ND ND ND 38§:130 ND ND M'i\\lP:S.-13 ND ND ND ND ND 100:120 ND ND ND ND ND ND ND ND ND ND ND

<11!9 ND ND M'i\\lP:S.-15 ND ND ND

<181 ND

<li8 ND ND ND ND

<~8 ND ND ND ND ND ND

<190 ND ND MW-PB-15Th.p ND ND ND

<L~

ND

<193 ND ND ND ND ND ND ND ND ND ND ND ND ND ND MW-PB-15S;Plit ND ND ND

<US ND

<115 ND ND ND ND ND ND ND ND ND ND ND ND ND ND M'i\\lP:S.-1,6 ND ND ND

<HQ ND

<I ND ND ND ND

<11!:8 ND ND ND ND ND ND

<11!:S ND ND MWPB-IS~

ND ND ND ND ND

<1$0 ND ND ND ND

<18 ND ND ND ND ND ND ND ND ND MW-PB-16S;Plit ND ND ND ND ND

<114 ND ND ND ND

<135 ND ND ND ND ND ND ND ND ND M'i\\lP:S.-L ND ND

<I-ND ND l l!l=ll 8 ND ND ND ND ND

<19l ND ND ND ND

<191 ND ND ND M'i\\lPJl..:10 ND ND

<ll!l ND ND ND

<184 ND ND ND ND

<19E ND ND ND ND

<191$

ND ND ND M'i\\lPJl..:2'.2 ND ND ND ND ND ND lll:1=131 ND ND ND ND ND ND ND ND ND ND r

12s ND ND M'i\\lP:S.-14 ND 113=1L ND 112=11§ 334=131 ND 356:Bl ND

!~Im 1'.23=131 ND

2:>>.:110 ND ND 1713=115 100=1'.ll ND ND ND 4T - 143 M'i\\lP:S.-15 ND 1!43=154 ND 9!M=I,

=ISl ND

,fil 7 *rn:

ND 5 30=5:N

'llO=l ND 4-

'"41 ND ND 14!0C0=1540 1!340!,~.1!3 ND ND ND I 100=17 MW-PB-25Th.p ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND IS IOCO=l~

MW-PB-25Th.p ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 13100=13° M'i\\lP:S.-16 ND 136:124 ND 3&0:110 371:13_*

ND 41 =12 ND 142=11Z 181!=130 ND 3 BS=l31 ND ND 340:139 435=141 ND ND ND 35!i=B M'i\\lP:S.-1 ND

,ti@3: 149 ND

~

155

,ti@3: 1Sl ND 4N=l34 ND 423=134 11!3=131 ND 413=148 ND ND 49'7=13§ 539:130 ND ND ND 5=1 M'i\\lP:S.-28 ND ND 313=131 ND ND I =121 ND ND ND ND ND

<100 ND ND ND ND 2 "'12 ND ND ND M'i\\lP:S.-2.

ND ND 3~=125 ND ND ND 3* =125 ND ND ND ND 481!: 13_*

ND 414=111!

ND ND 2.~l'.lll ND ND ND M'i\\lP:S.-30 ND ND 193=lli ND ND ND 9Ql=l'-

ND ND ND ND 373,

1 ND 5!iil=l41 ND

,fi!!:3=145 ND ND ND 18700=19, MW-PB-30Th.p ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND

~ 100=191 MW-PB-30D.;p ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND 14tio1Xl=l5'.

MWPB.-3 1 ND ND

<I.S4 ND ND ND 1$0:119 ND ND ND ND

<I.81!

ND 111?=135 ND ND 100=131 ND ND ND

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 117 Table E-10 Concentration of Tritium in Precipitation and Subsurface Drainage (Results in units of pCi/L +/- 2)

ND - No Data, Sample obtained as required LOCATIO 9/ 022 3/ 17/2022 611 I 022 6/15/20 2 9/13/2022 11 /15/2022 PB-Pl N1>

386=135

!-,.1)

)ID 364:::135

)ID PB-P2

)ID 3 52:!: 13 5

)ID ND 52 :!: 1-t0 ND PB-P3

.ID

<1 6

)ID

)ID 566:!:1 8

).1)

PB-P4

.ID 498:!: 130

>,>1)

.ID 48:!:16 ND PB-PS

).1) 199= 112

)ID

)ID 39 :!:l 8

).11)

PB-P6

.ID 33 =12

>,>1)

.ID 5 :!: l 56

).ii)

PB-P7

)ID 3 2=-12

)ID ND 538:!:160

~11)

PB-PS 202:12 363::129

)ID ND 600: 160

).11)

SP-PB-1

).ii)

ND

~

<1 6

~

<19-t SP-PB-2

).1)

l'D

<18

)ID

~

19 =1 6

January 1 - December 31, 2022 Docket Nos. 50-277, 50-278 118 Table E-11 Gross Concentration of Gamma Emitters in Groundwater and Subsurface Drainage (Results in units of pCi/L +/- 2)

Location Collection Date M\\V.PB-6 6.11412022 MW.PB-15 6.11412022 M\\V-PB-15 Dup 6.11412022 M\\V-PB-15 Split 6.11412022 MW.PB-16 6.11412022 M\\V-PB-16Dup 6.11412022 M\\V-PB-16 Split 6.11412022 M\\V.PB-S 6.11412022 MW-PB-SDup 6.11412022 M\\V-PB-S Split 6.11412022 MW.PB-10 6.11412022 MW.PB-28 6.11412022 MW.PB-19 6.11412022 MW.PB-13 6.11412022 M\\V.PB-2 6.11412022 M\\V.PB-3 6.115/2022 MW.PB-29 6.115/2022 MW.PB-30 6.115/2022 MW.PB-31 6.115/2022 MW.PB-20 6.115/2022 M\\V.PB-4 6.115/2022 MW.PB-22 6.115/2022 MW.PB-12 6.115/2022 MW.PB-26 6.115/2022 MW.PB-24 6.115/2022 MW.PB-27 6.115/2022 MW.PB-25 6.115/2022 M\\V.PB-7 6.115/2022 M\\V.PB-5 6.115/2022 Unit2 YARD DRAIN 6J24/2022 Unit 3 YARD DRAIN 6.11412022 SP-PB-I 6.115/2022 SP-PB-2 6.11412022 M\\V.PB-1 7119/2022 MW.PB-31 10'1/2022 MW.PB-29 10'1/2022 MW.PB-30 10'1/2022 ND - No Data,Sa.mpleobtai.ned as raquuad

())op) -Sample uulyu! in dcplicat, by '!BE Non Natural Gamma Emitters

<M)A

($pl.it) -Additional sample coltect:C and analyza,d fo1-Qr.ality AS>u.rance by GEL Laboratories 4.IDA ~fu?i.nu;m O..t:etab!e Activity, Lower Limit ofDet::etion is ~1:t

ML23150A205

Contents

Text

Subject:

SUMMARY

SUMMARY

Navigation menu

ML23150A205

Text

Subject:

SUMMARY

SUMMARY

Navigation menu

Search