BW240026, Annual Radiological Environmental Operating Report (1 January Through 31 December 2023)
| ML24136A014 | |
| Person / Time | |
|---|---|
| Site: | Braidwood  |
| Issue date: | 05/15/2024 |
| From: | Constellation Energy Generation, Teledyne Brown Engineering Environmental Services |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML24136A012 | List: |
| References | |
| BW240026 | |
| Download: ML24136A014 (1) | |
Text
Docket No:
50-456 50-457 BRAIDWOOD STATION UNIT 1 and UNIT 2 Annual Radiological Environmental Operating Report 1 January through 31 December 2023 Prepared By Teledyne Brown Engineering Environmental Services Constellation Braidwood Station Braceville, IL 60407 May 2024
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Table Of Contents I. Preface............................................................................................................................. 1 II. Summary and Conclusions............................................................................................. 8 Ill. Introduction..................................................................................................................... 9 A. Objectives of the REMP....................................................................................... 9 B. Implementation of the Objectives........................................................................ 9 IV. Program Description.................................................................................................... 1 O A. Sample Collection.............................................................................................. 1 O B. Sample Analysis................................................................................................ 11 C. Data Interpretation............................................................................................. 12 D. Program Exceptions.......................................................................................... 13 E. Program Changes............................................................................................. 13 V. Results and Discussion................................................................................................ 14 A. Aquatic Environment......................................................................................... 14
- 1. Surface Water......................................................................................... 14
- 2. Public Water............................................................................................ 14
- 3. Ground/Well Water................................................................................. 15
- 4. Fish......................................................................................................... 15
- 5. Sediment................................................................................................. 16 B. Atmospheric Environment................................................................................. 16
- 1. Airborne.................................................................................................. 16
- a. Air Particulates............................................................................. 16
- b. Airborne Iodine............................................................................. 17 C. Terrestrial Environment..................................................................................... 17 Food Products................................................................................................... 17 D. Ambient Gamma Radiation............................................................................... 17 E. Land Use Survey............................................................................................... 18 F. Errata Data......................................................................................................... 19 G. Summary of Results - Inter-laboratory Comparison Program........................... 19
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Appendix A Tables Table A-1 Appendix B Tables Table B-1 Table B-2 Figures Figure B-1 Figure B-2 Figure B-3 Appendix C Tables Table C-1.1 Table C-1.2 Table C-1.3 Table C-1.4 Table C-1.5 Table C-I1.1 Appendices Radiological Environmental Monitoring Report Annual Summary Radiological Environmental Monitoring Program Annual Summary for Braidwood Station, 2023 Location Designation, Distance & Direction, and Sample Collection &
Analytical Methods Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2023 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Braidwood Station, 2023 Inner Ring and Other OSLO Locations of Braidwood Station, 2023 Fixed Air Sampling and Outer Ring OSLO Locations of Braidwood Station, 2023 Ingestion and Waterborne Exposure Pathway Sample Locations of Braidwood Station, 2023 Data Tables and Figures - Primary Laboratory Concentrations of Gross Beta in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2023 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2023 Concentrations of Nickel-63 in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2023 Concentrations of lron-55 in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2023 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2023 Concentrations of Gross Beta in Public Water Samples Collected in the Vicinity of Braidwood Station, 2023 ii
Table C-I1.2 Concentrations of Tritium in Public Water Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-I1.3 Concentrations of 1-131 in Public Water Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-I1.4 Concentrations of Nickel-63 in Public Water Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-I1.5 Concentrations of lron-55 in Public Water Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-I1.6 Concentrations of Gamma Emitters in Public Water Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-II1.1 Concentrations of Tritium in Ground/Well Water Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-111.2 Concentrations of Gamma Emitters in Ground/Well Water Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-IV.1 Concentrations of lron-55, Nickel-63 and Gamma Emitters in Fish Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-V.1 Concentrations of lron-55, Nickel-63 and Gamma Emitters in Sediment Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-Vl.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-Vl.2 Monthly and Yearly Mean Values of Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-Vl.3 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-Vll.1 Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-Vlll.1 Concentrations of Gamma Emitters in Vegetation Samples Collected in the Vicinity of Braidwood Station, 2023 Table C-IX.1 Quarterly OSLO Results for Braidwood Station, 2023 Table C-IX.2 Mean Quarterly OSLO Results for the Inner Ring, Outer Ring, Other, Control, and Independent Spent Fuel Storage Installation (ISFSI)
Locations for Braidwood Station, 2023 Table C-IX.3 Summary of the Ambient Dosimetry Program for Braidwood Station, 2023 iii
Figures Figure C-1 Figure C-2 Figure C-3 Figure C-4 Figure C-5 Figure C-6 Figure C-7 Figure C-8 Figure C-9 Figure C-10 Figure C-11 Figure C-12 Figure C-13 Figure C-14 Figure C-15 Figure C-16 Figure C-17 Figure C-18 Surface Water - Gross Beta - Stations BD-10 and BD-25 (Control (C))
Collected in the Vicinity of Braidwood Station, 2000 - 2023 Surface Water - Gross Beta - Stations BD-38 and BD-40 Collected in the Vicinity of Braidwood Station, 2007 - 2023 Surface Water - Gross Beta - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2023 Surface Water - Tritium - Stations BD-10 and BD-25 (C) Collected in the Vicinity of Braidwood Station, 2000 - 2023 Surface Water - Tritium - Stations BD-38 and BD-40 Collected in the Vicinity of Braidwood Station, 2006 - 2023 Surface Water - Tritium - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2023 Public Water - Gross Beta - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2023 Public Water - Tritium - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2023 Ground/Well Water - Tritium - Stations BD-13 and BD-34 Collected in the Vicinity of Braidwood Station, 2000 - 2023 Ground/Well Water - Tritium - Stations BD-35 and BD-36 Collected in the Vicinity of Braidwood Station, 2000 - 2023 Ground/Well Water - Tritium - Station BD-37 Collected in the Vicinity of Braidwood Station, 2000 - 2023 Ground/Well Water - Tritium - Stations BD-50 and BD-51 Collected in the Vicinity of Braidwood Station, 2007 - 2023 Ground/Well Water - Tritium - Stations BD-53 and BD-54 Collected in the Vicinity of Braidwood Station, 2007 - 2023 Air Particulate - Gross Beta - Stations BD-03 (C) and BD-06 Collected in the Vicinity of Braidwood Station, 2000 - 2023 Air Particulate - Gross Beta - Stations BD-19 and BD-20 Collected in the Vicinity of Braidwood Station, 2000 - 2023 Air Particulate - Gross Beta - Station BD-21 Collected in the Vicinity of Braidwood Station, 2000 - 2023 Air Particulate - Gross Beta - Stations BD-02 and BD-04 Collected in the Vicinity of Braidwood Station, 2005 - 2023 Air Particulate - Gross Beta - Station BD-05 Collected in the Vicinity of Braidwood Station, 2005 - 2023 iv
Appendix D Tables Table 0-1 Table D-2 Table 0-3 Appendix E Appendix F Inter-Laboratory Comparison Program Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services, 2023 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)
Teledyne Brown Engineering Environmental Services, 2023 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services, 2023 Errata Data Annual Radiological Groundwater Protection Program Report (ARGPPR)
V
I.
Preface The following sections of the preface are meant to help define key concepts, provide clarity, and give context to the readers of this report.
Annual Reports The Nuclear Regulatory Commission (NRC) is the federal agency who has the role to protect public health and safety through the development of regulations governing nuclear power reactors and ensuring their compliance. As part of the many commitments Nuclear Power Plants have to the NRC to ensure this safety, they provide two reports annually to specifically address how the station's operation impacts the environment of local communities. The NRC then reviews these reports and makes them available to the public. The names of the reports are the Annual Radioactive Effluent Release Report (ARERR) and the Annual Radiological Environmental Operating Report (AREOR).
The ARERR reports the results of the sampling from the effluent release paths at the station analyzed for radioactivity. An effluent is a liquid or gaseous waste containing plant-related radioactive material emitted at the boundary of the facility.
The ARE OR reports the results of the samples obtained in the environment surrounding the station. Environmental samples include air, water, vegetation, and other sample types that are identified as potential pathways radioactivity can reach humans.
Graphic 1. Examples of Gaseous and Liquid Effluent Pathways Graphic 1 demonstrates some potential exposure pathways from Braidwood Nuclear Power Station. The ARERR and AREOR together ensure Nuclear Power Plants are operating in a manner that is within established regulatory commitments meant to adequately protect the public.
1
Understanding Radiation Generally radiation is defined as emitted energy in the form of waves or particles. If radiation has enough energy to displace electrons from an atom it is termed "ionizing",
otherwise it is "non-ionizing". Non-Ionizing radiation includes light, heat given off from a stove, radiowaves and microwaves. Ionizing radiation occurs in atoms, particles too small for the eye to see. So, what are atoms and how does radiation come from them?
Graphic 2. Types of Radiation, from NASA Hubb/esite The Ele-ctromagnetic $pectrum Wavelength in meters About th* slH of:
liar,~
Builc:ingEI Grains Prolozoans Bacteria Moleculafl AtomB of sugar AkJmic nuclei An atom is the smallest part of an element that maintains the characteristics of that element. Atoms are made up of three parts: protons, neutrons, and electrons.
Graphic 3. Structure of an Atom Neutron ----~ -----
Electron ----------_ -------
The number of protons in an atom determines the element. For example, a hydrogen atom will always have one proton while an oxygen atom will always have eight protons. The protons are clustered with the neutrons forming the nucleus at the center of the atom. Orbiting around the nucleus are the relatively small electrons.
Isotopes are atoms that have the same number of protons but different numbers of neutrons. Different isotopes of an element will all have the same chemical properties and many isotopes are radioactive while other isotopes are not radioactive. A radioactive isotope can emit radiation because it contains excess energy in its nucleus. Radioactive atoms and isotopes are also referred to as radionuclides and radioisotopes.
2
There are two basic ways that radionuclides are produced at a nuclear power plant.
The first is fission, which creates radionuclides that are called fission products. Fission occurs when a very large atom, such as uranium-235 (U-235) or plutonium-239 (Pu-239), absorbs a neutron into its nucleus making the atom unstable. The unstable atom can then split into smaller atoms. When fission occurs there is a large amount of energy released, in the form of heat. A nuclear power plant uses the heat generated to boil water that spins turbines to produce electricity.
The second way a radionuclide is produced at a nuclear power plant is through a process called activation. Radionuclides produced in this method are termed activation products. Pure water that passes over the fissioning atoms is used to cool the reactor and also produce steam to turn the turbines. Although this water is considered to be very pure, there are always some contaminants within the water from material used in the plant's construction and operation. These contaminants are exposed to the fission process and may become activation products. The atoms in the water itself can also become activated and create radionuclides.
Over time, radioactive atoms will reach a stable state and no longer be radioactive. To do this they must release their excess energy. This release of excess energy is called radioactive decay. The time it takes for a radionuclide to become stable is measured in units called half-lives. A half-life is the amount of time it takes for half of the original radioactivity to decay. Each radionuclide has a specific half-life. Some half-lives can be very long and measured in years while others may be very short and measured in seconds.
1000 800 Activity 600 400 200 0
1 half-life Graphic 4. Radioactive Decay Half-Life Half-life 2 half-lives The amount of time it takes for half of the original radioactivity to decay 3 half-lives 4 half-lives In the annual reports you will see both man-made and naturally-ocurring radionuclides listed, for example potassium-40 (K-40, natural) and cobalt-60 (Co-60, man-made).
We are mostly concerned about man-made radionuclides because they can be produced as by-products when generating electricity at a nuclear power plant. It is important to note that there are also other ways man-made radionuclides are produced, such as detonating nuclear weapons. Weapons testing has deposited 3
some of the same man-made radionuclides into the environment as those generated by nuclear power, and some are still present today because of long half-lives.
Measuring Radiation There are four different but interrelated units for measuring radioactivity, exposure, absorbed dose, and dose equivalent. Together, they are used to scientifically report the amount of radiation and its effects on humans.
- Radioactivity refers to the amount of ionizing radiation released by a material.
The units of measure for radioactivity used within the AREOR and ARERR are the Curie (Ci). Small fractions of the Ci often have a prefix, such as the microCurie (µCi), which means 1/1,000,000 of a Curie.
- Exposure describes the amount of radiation traveling through the air. The units of measure for exposure used within the AREOR and ARERR are the Roentgen (R). Traditionally direct radiation monitors placed around the site are measured milliRoentgen (mR), 1/1,000 of one R.
- Absorbed dose describes the amount of radiation absorbed by an object or person. The units of measure for absorbed dose used within the AREOR and ARERR are the rad. Noble gas air doses are reported by the site are measured in millirad (mrad}, 1/1,000 of one rad.
- Dose equivalent (or effective dose) combines the amount of radiation absorbed and the health effects of that type of radiation. The units used within the AREOR and ARERR are the Roentgen equivalent man (rem). Regulations require doses to the whole body, specific organ, and direct radiation to be reported in millirem (mrem), 1/1,000 of one rem.
Sources of Radiation People are exposed to radiation every day of their lives and have been since the dawn of mankind. Some of this radiation is naturally occurring while some is man-made. There are many factors that will determine the amount of radiation individuals will be exposed to such as where they live, medical treatments, etc. The average person in the United States is exposed to approximately 620 mrem each year. Half of this exposure, 310 mrem, comes from natural sources and the other half, 310 mrem, from man-made sources. Graphic 5 shows what the typical sources of radiation are for an individual over a calendar year:
4
Graphic 5. Sources of Radiation Exposure in the U.S., from NCRP Report No. 160 Sources of Radiation Exposure in the U.S.
Terrestrial (Soil) - 3%
Internal-5%
D Natural Sources - 50%
- ** ~310 millirem (0.31 rem)
Source, r-lCRP Report No. 160(2009)
Industrial and Occupational
<0.1%
Nuclear Medicine 12%
CJ Manmade Sources - 50%
- .*_.*. * ~310 millirem (0_31 rem)
Full report isavailable on the r-lCRP website at www.r-lCRPonline.org The radiation from a nuclear power plant is included in the chart as part of the "Industrial and Occupational" fraction, <0.1 %. The largest natural source of radiation is from radon, because radon gas travels in the air we breathe. Perhaps you know someone who had a CT scan at a hospital to check his or her bones, brain, or heart.
CT scans are included in the chart as "Medical Procedures" which make up the next largest fraction. Graphic 6 on the following page shows some of the common doses humans receive from radiation every year.
5
Graphic 6.Relative Doses from Radiation Sources, from EPA Radiation Doses and Sources RELATIVE DOSES FROM RADIATION SOURCES All doses from the National Council on Radiation Protection & Measurements, Report No. 160 (unless otherwise denoted}
WholebodyCT
- l,000 mlllirem (single procedure)
HudCT 200 mllllrem
( slr,fl/e procedure}
Mammogram 42 mllllrem (single,,,-<<edure}
from fCRP 2007 Radiation In the body ~
29 mllllrem (annual)
Cheatx*ray 10 mlllirem (single procedure}
mrem 6
u-6-rol-UMI **ray mm with nuoroscapy 1500mllllrem
( single procedure)
Radon In average U.S. home 228 mllllrem (annual)
Cosmic radiation llvlng In Denver (high elavatlon) approximately 80 mllllrem (annual)
Cosmic ralllatlon 11¥1119 at...
le...i (low elevatfon) approximately 30 milllrem (ar,nual}
Ternstrlal radioactivity 21 mllllrem (annual)
Living nur a nudur power station
< 1 mllllrem (annual)
Radiation Risk Current science suggests there is some risk from any exposure to radiation. However, it is very hard to tell whether cancers or deaths can be attributed to very low doses of radiation or by something else. U.S. radiation protection standards are based on the premise that any radiation exposure carries some risk.
The following graph is an example of one study that tries to relate risk from many different factors. This graph represents risk as "Days of Lost Life Expectancy". All the categories are averaged over the entire population except Male Smokers, Female Smokers, and individuals that are overweight. Those risks are only for people that fall into those categories. The category for Nuclear Power is a government estimate based on all radioactivity releases from nuclear power, including accidents and wastes.
Graphic 7. Days of Lost Life Expectancy, Adapted from the Journal of American Physicians and Surgeons Volume 8 Number 2 Summer 2003 Smoking - Men Heart Disease Smoking - Women Cancer Every 10 I bs overweight
.Stroke Motor 'vehicle Accident Air Pollution
- Radon I
Chemical Residue in f'.oods I
Drovming I
Hurricanes and Tornadoes Lightning Nuclear Povver 0
Hurricanes and Tornadoes Lightning Nuclear Power I 0
0.2 Days of Lost Life Expectancy 500 1000 1500 2000 2500 3000 Days of Lost Life Expectancy 04 0.6 08 12 14 1.6 18 7
- 11.
Summary and Conclusions This report on the Radiological Environmental Monitoring Program (REMP) conducted for Constellation's Braidwood Station covers the period January 1, 2023, through December 31, 2023. During that time period 1,574 analyses were performed on 1,274 samples. In assessing all the data gathered for this report and comparing these results with preoperational data, it was concluded that the operation of Braidwood Station had no adverse radiological impact on the environment.
Surface, public, and ground/well water samples were analyzed for concentrations of tritium and gamma-emitting nuclides. Surface water and public water samples were also analyzed for concentrations of gross beta. Gross beta and tritium activities detected were consistent with those detected in previous years. No fission or activation products were detected. As part of an effort to implement industry best practices, both gaseous and liquid station effluents were evaluated for all 1 0CFR61 required nuclides. Nuclides exceeding 1 % relative abundance in the waste stream were added to the list of nuclides that Teledyne Brown evaluates in potentially impacted REMP matrices. For Braidwood Station, nickel-63 (Ni-63) exceeds 1 %
relative abundance in the radwaste resins. Occasionally, Ni-63 is observed in liquid release tank quarterly composites, therefore, beginning in the fall of 2013 the station requested that Ni-63 be evaluated in the downstream surface water, sediment, and fish analyses. Nickel-63 has not been observed in downstream surface water.
Fish (commercially and/or recreationally-important species) and sediment samples were analyzed for concentrations of gamma-emitting nuclides. No fission or activation products were detected in fish. Nickel-63 was not detected in any fish or sediment samples analyzed. No plant-produced fission or activation products were found in sediment.
Air particulate samples were analyzed for concentrations of gross beta and gamma-emitting nuclides. No fission or activation products were detected.
High sensitivity iodine-131 (1-131) analyses were performed on weekly air samples.
All results were less than the minimum detectable concentration for 1-131.
Food Product samples were analyzed for concentrations of gamma-emitting nuclides.
No milk samples were able to be obtained in 2023, but the ODCM permits using vegetation sample in lieu of milk. No fission or activation products were found in any samples and all required LLDs were met.
Environmental gamma radiation measurements were performed quarterly using Optically Stimulated Luminescence Dosimeters (OSLO). Beginning in 2012, Constellation (formerly Exelon) changed the type of dosimetry used for the Radiological Environmental Monitoring Program (REMP). Optically Stimulated Luminescent Dosimetry were deployed and Thermo-luminescent Dosimetry (TLD) were discontinued. This change may result in a step change in readings, up or down, depending on site characteristics. The relative comparison to control locations remains valid. OSLO technology is different than that used in a TLD but has the same purpose (to measure direct radiation). A dose evaluation was performed by taking the highest readings at the ISFSI pad and extrapolating dose to the nearest resident. The dose to the nearest resident was estimated to be 2.63E-05 mrem/year in 2023.
8
Ill.
Introduction The Braidwood Station, consisting of two 3,645 MWt pressurized water reactors owned and operated by Constellation is located in Will County, Illinois. Unit No. 1 went critical on May 29, 1987. Unit No. 2 went critical on March 08, 1988. The site is located in northeastern Illinois, 20 miles south-southwest of Joliet, Illinois, 60 miles southwest of Chicago and southwest of the Kankakee River.
This report covers those analyses performed by Teledyne Brown Engineering (TBE) and Landauer Technologies on samples collected during the period January 1, 2023, through December 31, 2023.
A.
Objectives of the REMP The objectives of the REMP are to:
- 1.
Provide data on measurable levels of radiation and radioactive materials in the site environs;
- 2.
Evaluate 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 The implementation of the objectives is accomplished by:
- 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.
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IV.
Program Description A.
Sample Collection Samples for the Braidwood Station REMP were collected for Constellation Energy by Microbac Laboratories Inc. This section describes the general collection methods used by Microbac to obtain environmental samples for the Braidwood Station REMP in 2023. Sample locations and descriptions can be found in Table B-1 and Figures B-1 through B-3, Appendix B. The sampling methods used by EIML are listed in Table B-2.
Aquatic Environment The aquatic environment was evaluated by performing radiological analyses on samples of surface water, public water, well water, fish, and sediment. Two-gallon water samples were collected weekly from six surface water locations
[BD-10, BD-25 (Control (C)), BD-38, BD-40, BD-55 and BD-56], and one weekly composite sample of public drinking water at location (BD-22) and ground/well water samples collected quarterly from eight locations (BD-13, BD-34, BD-35, BD-36, BD-37, BD-50, BD-51 and BD-54). All samples were collected in new plastic bottles, which were rinsed with source water prior to collection per procedure. Fish samples comprised of smallmouth bass, golden redhorse, common carp, channel catfish and largemouth bass flesh were collected semiannually at three locations, BD-25 (C), BD-28 and BD-41.
Sediment samples composed of recently deposited substrate were collected at three locations semiannually, BD-10, BD-25 (C), BD-57.
Atmospheric Environment The atmospheric environment was evaluated by performing radiological analyses on samples of air particulate and airborne iodine. Air particulate samples were collected and analyzed weekly at eight locations [BD-02, BD-03 (C), BD-04, BD-05, BD-06, BD-19, BD-20 and BD-21 ]. Airborne iodine and particulate samples were obtained at each location, using a vacuum pump with charcoal and glass fiber filters installed. The pumps were run continuously and sampled air at the rate of approximately one cubic foot per minute. The air particulate filters and air iodine cartridges were replaced weekly and sent to the laboratory for analysis.
Terrestrial Environment The terrestrial environment was evaluated by performing radiological analyses on food product samples. Food products were collected at six locations (BO-Control, BO-Quad 1, BO-Quad 2, BO-Quad 3, BO-Quad 4, BWD-G1 and BWD-G2). Various types of samples were collected and placed in new unused plastic bags and sent to the laboratory for analysis.
Ambient Gamma Radiation Beginning in 2012, Constellation (formerly Exelon) changed the type of dosimetry used for the Radiological Environmental Monitoring Program (REMP). Optically Stimulated Luminescent Dosimeters (OSLO) were deployed and the use of Thermoluminescent Dosimeters (TLD) was 10
discontinued. This change may result in a step change in readings, up or down, depending on site characteristics. The relative comparison to control locations remains valid. OSLO technology is different than that used in a TLO but has the same purpose (to measure direct radiation).
Each location consisted of two OSLOs. The OSLOs were exchanged quarterly and sent to Landauer for analysis. The OSLOs were placed at locations on and around the Braidwood Station site as follows:
An inner ring consisting of sixteen locations (BO-101, BO-102, BO-103, BO-104, BO-105, BO-106, BO-107, BO-108, BO-109, BO-110, BO-111 a, BO-112, BO-113a, BO-114, BO-115 and BO-116) at or near the site boundary.
An outer ring consisting of sixteen locations (BO-201, BO-202, BO-203, BO-204, BO-205, BO-206, BO-207, BO-208, BO-209, BO-210, BO-211, BO-212, BO-213, BO-214, BO-215 and BO-216) extending to approximately 5 miles from the site.
An additional set located at the eight fixed air sampling locations (BO-02, BO-3 (C), BO-04, BO-05, BO-06, BO-19, BO-20 and BO-21 ).
An ISFSI set consisting of six locations (BO-ISFSl-104-3, BO-ISFSl-104-4, BO-ISFSl-105-3, BO-ISFSl-105-4, BO-ISFSl-110-3 and BO-ISFSl-110-4).
The specific OSLO locations were determined by the following criteria:
- 1.
The presence of relatively dense population;
- 2.
Site meteorological data taking into account distance and elevation for each of the sixteen-22 1 /2 degree sectors around the site;
- 3.
Where estimated annual dose from Braidwood Station, if any, would be most significant.
B.
Sample Analysis This section describes the general analytical methodologies used by TBE to analyze the environmental samples for radioactivity for the Braidwood Station REMP in 2023. The analytical procedures used by the laboratories are listed in Table B-2.
In order to achieve the stated objectives, the current program includes the following analyses:
- 1.
Concentrations of beta emitters in public and surface water and air particulates.
- 2.
Concentrations of gamma emitters in public, ground/well and surface water, air particulates, fish, sediment and food products.
- 3.
Concentrations of tritium in public, ground/well and surface water.
- 4.
Concentrations of 1-131 in air and public water.
- 5.
Concentrations of Ni-63 in surface water, fish and sediment.
- 6.
Ambient gamma radiation levels at various site environs.
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C.
Data Interpretation The radiological and direct radiation data collected prior to Braidwood Station becoming operational were used as a baseline with which these operational data were compared. For the purpose of this report, Braidwood Station was considered operational at initial criticality. In addition, data was compared to previous years' operational data for consistency and trending. Several factors were important in the interpretation of the data:
- 1.
Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) was 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 was intended as a before the fact estimate of a system (including instrumentation, procedure and sample type) and not as an after the fact criteria for the presence of activity. All analyses were designed to achieve the required Braidwood Station detection capabilities for environmental sample analysis.
The MDC is the smallest concentration of radioactive material in a sample that will yield a net count, above system background, that will be detected with 95% probability with only 5% probability of falsely concluding that a blank observation represents a "real" signal. The MDC is an a posteriori determination.
- 2.
Net Activity Calculation and Reporting of Results Net activity for a sample was calculated by subtracting background activity from the sample activity. Since the REMP measures extremely small changes in radioactivity in the environment, background variations may result in sample activity being lower than the background activity resulting in a negative number. An MDC was reported in all cases where positive activity was not detected.
Gamma spectroscopy results for each type of sample were grouped as follows:
For surface water, public water, ground/well water, air particulate/
radioiodine, vegetation and fish, twelve nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, 1-131, Cs-134, Cs-137, Ba-140 and La-140 were reported.
For sediment, eleven nuclides, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, Cs-134, Cs-137, Ba-140 and La-140 were reported.
Means and standard deviations of the results were calculated. The standard deviations represent the variability of measured results for different samples rather than the single analysis uncertainty.
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D.
Program Exceptions For 2023, the Braidwood Station REMP had a sample recovery rate in excess of 98%. Sample anomalies and missed samples are listed in the tables below:
Table D-1 LISTING OF SAMPLE ANOMALIES Sample Location Collection Reason Tt~e Code Date AP/Al BD-19 01/05/23 Timer indicates lower value of 135 hrs., possibly due to a power outage. NOTE: The problem was identified as caused by a faulty timer after it displayed a lower value of 130 hrs. during the 01/12 collection. Timer exchanged.
APAI BD-02 05/05/23 Timer indicates approx. 8 hrs. less than expected due to a power outage. NOTE: During the 05/11 collection, the timer indicated an expected value of 150.2 hrs.
OSLO BD-19 3rd Qtr. '23 OSLD's exchanged on 10/04/23 due to an error.
AP/Al BD-03 11/30/23 The timer indicates low value of 97.2 hrs., possibly due to a power outage. NOTE: During the 12/07 collection, the problem was identified as a timer failure. Timer exchanged, run time calculated.
Table D-2 LISTING OF MISSED SAMPLES Sample Location Collection Reason Ttpe Code Date{s}
SW BD-55 01/05/23 No sample; lake frozen AP/Al BD-02 01/19/23 Pump failure; pump exchanged SW BD-10 02/02/23 No sample; river frozen SW BD-25 02/02/23 No sample; area inaccessible; river frozen 02/09/23 SW BD-55 02/02/23 No sample; pond frozen BD-56 SW BD-25 03/02/23 No sample; gate closed due to ice accumulation SW BD-38 08/31/23 No sample; area dry 09/07/23 OSLO BD-309 3rd Qtr. '23 One OSLO missing, possibly due to vandalism.
Premises searched unsuccessfully Each program exception was reviewed to understand the causes of the program exception. Sampling and maintenance issues were reviewed with the personnel involved to prevent recurrence. Occasional equipment breakdowns, power outages and weather related issues were unavoidable.
The overall sample recovery rate indicates that the appropriate procedures and equipment are in place to assure reliable program implementation.
E.
Program Changes There were no program changes in 2023.
13
V.
Results and Discussion A.
Aquatic Environment
- 1.
Surface Water (SW)
Samples were taken weekly and composited monthly at six locations (BD-10, BD-25 (C), BD-38, BD-40, BD-55 and BD-56). Of these locations, only BD-10 could be affected by Braidwood Station's effluent releases as it is downstream of the NP DES-permitted outfall. The following analyses were performed:
Gross Beta Samples from all locations were analyzed for concentrations of gross beta (Table C-1.1, Appendix C). Gross beta was detected in 65 of 72 samples.
The values ranged from 2.7 to 13.5 pCi/L. Concentrations detected were consistent with those detected in previous years.
(Figures C-1 through C-3, Appendix C)
Tritium Quarterly composites of weekly collections were analyzed for tritium activity (Table C-1.2, Appendix C). Tritium activity was detected in 2 of 24 samples. Concentrations ranged from 246 to 272 pCi/L, which were consistent with those detected in previous years.
(Figures C-4 through C-6, Appendix C)
Nickel-63 Monthly samples were analyzed for Ni-63 activity. Ni-63 was not detected and the required LLD was met. (Table C-1.3, Appendix C) lron-55 Monthly samples were analyzed for Fe-55 activity. Fe-55 was not detected and the required LLD was met. (Table C-1.4, Appendix C)
Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides.
No nuclides were detected and all required LLDs were met.
(Table C-1.4, Appendix C)
- 2.
Public Water (PW)
Monthly composites of weekly samples were made at one location (BD-22). This location could be affected by Braidwood Station's effluent releases. The following analyses were performed:
Gross Beta Samples from the location were analyzed for concentrations of gross beta (Tables C-I1.1, Appendix C). Gross beta was detected in 10 of 12 samples.
The values ranged from 2.6 to 4.2 pCi/L. Concentrations detected were consistent with those detected in previous years. (Figure C-7, Appendix C) 14
Tritium Monthly composites of weekly samples from BD-22 were analyzed for tritium activity (Table C-11.2, Appendix C). Tritium was detected in 12 of 12 samples. Concentrations ranged from 200 to 1,780 pCi/L. Concentrations detected were consistent with those detected in previous years (Figure C-8, Appendix C).
Iodine Monthly composites of weekly samples from the location were analyzed for 1-131. Iodine was not detected in any samples and the required LLD was met. (Table C-11.3, Appendix C)
Nickel-63 Monthly samples were analyzed for Ni-63 activity. No Ni-63 was detected and the required LLD was met on all samples. (Table C-11.4, Appendix C) lron-55 Monthly samples were analyzed for Fe-55 activity. Fe-55 was not detected and the required LLD was met. (Table C-11.5, Appendix C)
Gamma Spectrometry Samples from the location were analyzed for gamma emitting nuclides. No nuclides were detected and all required LLDs were met.
(Table C-11.6, Appendix C)
- 3.
Ground/Well Water (WW)
Quarterly samples were collected at eight locations (BD-13, BD-34, BD-35, BD-36, BD-37, BD-50, BD-51 and BD-54). The following analyses were performed:
Tritium Quarterly grab samples from the locations were analyzed for tritium activity (Table C-111.1, Appendix C). Tritium was not detected in any samples, which is consistent with results in previous years.
(Figures C-9 through C-13, Appendix C)
Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides.
No nuclides were detected and all required LLDs were met.
(Table C-11.3, Appendix C)
- 4.
Fish Fish samples comprising the flesh of smallmouth bass, golden redhorse, common carp, channel catfish and largemouth bass were collected at three locations (BD-25, BD-28, and BD-41) semiannually. Location BD-28 could be affected by Braidwood Station's effluent releases.
15
The following analyses were performed:
lron-55 The edible portion of fish samples from all three locations was analyzed for Fe-55 activity. Fe-55 was not detected and the required LLD was met.
(Table C-I1.3, Appendix C)
Nickel-63 The edible portion of fish samples from all three locations was analyzed for Ni-63 activity. Ni-63 was not detected and the required LLD was met.
(Table C-IV.1, Appendix C)
Gamma Spectrometry The edible portion of fish samples from all three locations was analyzed for gamma emitting nuclides. No fission or activation products were found. No nuclides were detected and all required LLDs were met.
(Table C-IV.1, Appendix C)
- 5.
Sediment (BS)
Aquatic sediment samples were collected at three locations (BD-10, BD-25 (C), and BD-57) semiannually. The locations at the Braidwood Station outfall to the Kankakee River (BD-57) and downstream of the outfall (BD-10), could be affected by Braidwood Station's effluent releases.
The following analyses were performed:
lron-55 Sediment samples from all three locations was analyzed for Fe-55 activity.
Fe-55 was not detected and the required LLD was met.
(Table C-V.1, Appendix C)
Nickel-63 Sediment samples from all three locations was analyzed for Ni-63 activity.
Ni-63 was not detected and the required LLD was met.
(Table C-V.1, Appendix C)
Gamma Spectrometry Sediment samples from the location were analyzed for gamma emitting nuclides. No fission or activation products were found and all required LLDs were met. (Table C-V.1, Appendix C)
B.
Atmospheric Environment
- 1.
Airborne (AP/Al)
- a.
Air Particulates Continuous air particulate samples were collected from eight locations on a weekly basis. The eight locations were separated into three groups: Near field samplers (BD-06, BD-19, BD-20 and BD-21 ),
far field samplers within 10 km of the site (BD-02, BD-04 and BD-05) 16
and the Control sampler between 10 and 30 km from the site (BD-03).
The following analyses were performed:
Gross Beta Weekly samples were analyzed for concentrations of beta emitters (Table C-Vl.1 and C-Vl.2, Appendix C). Detectable gross beta activity was observed at all locations. Comparison of results among the three groups aid in determining the effects, if any, resulting from the operation of Braidwood Station. The results from the near field (Group I) ranged from SE-03 to 40E-03 pCi/m3 with a mean of 20E-03 pCi/m3.
The results from the far field (Group II) ranged from ?E-03 to 36E-03 pCi/m3 with a mean of 20E-03 pCi/m3. The results from the Control location (Group Ill) ranged from SE-03 to 48E-03 pCi/m3 with a mean of 19E-03 pCi/m3. Comparison of the 2023 air particulate data with previous years' data indicate no effects from the operation of Braidwood Station. Additionally, a comparison of the weekly values for 2023 indicate no notable differences among the three groups.
(Figures C-14 through C-18, Appendix C)
Gamma Spectrometry Weekly samples were composited quarterly and analyzed for gamma emitting nuclides. No nuclides were detected and all required LLDs were met. (Table C-Vl.3, Appendix C)
- b.
Airborne Iodine Continuous air samples were collected from eight locations (BD-02, BD-03, BD-04, BD-05, BD-06, BD-19, BD-20 and BD-21) and analyzed weekly. The following analysis was performed:
1-131 Continuous air samples were collected from eight locations for 1-131.
All results were less than the minimum detectable concentration for 1-131. The required LLD was met for all analyses.
(Table C-Vll.1, Appendix C)
C.
Terrestrial Environment Food Product (VE) samples were collected at eight locations: BO-Control, BO-Quad 1, BO-Quad 2, BO-Quad 3, BO-Quad 4, BWD-G1 and BWD-G2 when available. The following analysis was performed:
Gamma Spectrometry Samples from all locations were analyzed for gamma emitting nuclides. No nuclides were detected and all required LLDs were met.
(Table C-IX.1, Appendix C) 17
D.
Ambient Gamma Radiation Ambient gamma radiation levels were measured utilizing Optically Stimulated Luminescence Dosimeter (OSLO). Forty-eight OSLO locations were established around the site, each with two OSLD's installed for measurement. The data was analyzed using methods acceptable for demonstrating compliance with the Environmental Protection Agency (EPA) 40 CFR 190, "Environmental Radiation Protection Standards for Nuclear Power Operations". It incorporates the concepts of ANSI/HPS N13.37, "Environmental Dosimetry". Results of OSLO measurements are listed in Tables C-X.1 to C-X.3, Appendix C.
All OSLO measurements had a range of 12.1 to 63.6 mrem/std. quarter. A comparison of the Inner Ring, Outer Ring and Other data to the Control Location data, indicate that the ambient gamma radiation levels from all locations were similar.
Annual Facility Dose was reported for station BD-ISFSl-105-4. The direct dose to the nearest resident was estimated to be 2.63E-05 mrem/year.
E.
Land Use Survey A Land Use Survey conducted during August 9, 2023, around the Braidwood Station was performed by EIML for Constellation to comply with section 12.5.2 of the Braidwood Station's Offsite Dose Calculation Manual ODCM). The purpose of the survey was to document the nearest resident, milk-producing animal and garden of greater than 500 ft2 in each of the sixteen 22 1/2 degree sectors around the site. For dose calculation, a garden is assumed at the nearest residence. There were no notable changes to the 2023 land use census. The results of this survey are summarized below:
Distance in Miles from the Braidwood Station Reactor Buildings Sector Residence Miles Livestock Miles Milk Farm Miles A
N 0.50 2.6 8
NNE 0.88 C
NE 0.65 D
ENE 0.60 E
E 1.50 2.3 F
ESE 2.20 2.3 G
SE 2.70 2.7 H
SSE 4.50 J
s 4.20 K
SSW 4.00 5.3 L
SW 0.40 M
WSW 0.45 N
w 0.35 1.6 8.7 p
WNW 0.40 Q
NW 0.40 R
NNW 0.40 18
F.
Errata Data There was no errata data for 2023 REMP.
G.
Summary of Results - Inter-Laboratory Comparison Program The TBE Laboratory analyzed Performance Evaluation (PE) samples of air particulate, air iodine, milk, soil, vegetation, and water matrices that represent test & matrix combinations available for REMP programs. The PE samples supplied by Analytics Inc., Environmental Resource Associates (ERA) and Department of Energy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP), were evaluated against the following pre-set acceptance criteria:
- 1.
Analytics Evaluation Criteria Analytics' evaluation report provides a ratio of TB E's result and Analytics' known value. Since flag values are not assigned by Analytics, TBE evaluates the reported ratios based on internal QC requirements based on the DOE MAPEP criteria.
- 2.
ERA Evaluation Criteria ERA's evaluation report provides an acceptance range for control and warning limits with associated flag values. ERA's acceptance limits are established per the USEPA, National Environmental Laboratory Accreditation Conference (NELAC), state-specific Performance Testing (PT) program requirements or ERA's SOP for the Generation of Performance Acceptance Limits, as applicable. The acceptance limits are either determined by a regression equation specific to each analyte or a fixed percentage limit promulgated under the appropriate regulatory document.
- 3.
DOE Evaluation Criteria MAPEP's evaluation report provides an acceptance range with associated flag values. MAPEP defines three levels of performance:
- Acceptable (flag = "A") - result within +/- 20% of the reference value
- Acceptable with Warning (flag = "W") - result falls in the +/- 20% to
+/- 30% of the reference value
- Not Acceptable (flag = "N") - bias is greater than 30% of the reference value Note: The Department of Energy (DOE) Mixed Analyte Performance Evaluation Program (MAPEP) samples are created to mimic conditions found at DOE sites which do not resemble typical environmental samples obtained at commercial nuclear power facilities.
For the TBE laboratory, 124 out of 131 analyses performed met the specified acceptance criteria. Seven analyses did not meet the specified acceptance criteria and were addressed through the TBE Corrective Action Program. A summary is found below:
19
- 1. The MAPEP February 2023 Soil Ni-63 result was evaluated as Not Acceptable. TBE's reported value was 294 Bq/kg and the known result was 1130 Bq/kg (range 791 - 1469). The sample was reprepped by a different (senior) lab technician with results of 1120 & 1250 Bq. It was determined that there was a difference between the two techs during the sample prep (technique) and the procedure was revised to reflect these differences including using a specific aliquot amount. (NCR 23-08)
- 2. The MAPEP February 2023 vegetation Sr-90 result was evaluated as Not Acceptable. The reported value was 0.05 Bq (not detected) and the known result was a "false positive". This was considered to be a statistical failure because TBE's reported result with 3 times the uncertainty resulted in a slightly positive net result (0.03194 Bq/kg). The reported result was significantly below TBE's average detection limit for vegetation samples.
(NCR 23-09)
- 3. The ERA RAD April 2023 water Ba-133 result was evaluated as Not Acceptable. The reported value was 26.0 pCi/L and the known was 22.3 (acceptance range 17.1 - 25.8 pCi) or 117% of the known (acceptable for TBE QC). The sample was used as the workgroup duplicate with a result of 25.4 (114%). The sample had also been counted on a different detector with a result of 21.9 (98%). This was TBE's first failure for Ba-133.
(NCR 23-10)
- 4. The MAPEP August 2023 soil Fe-55 result was evaluated as Not Acceptable. The reported value was 346 Bq/kg and the known result was 1280 (acceptance range of 896-1664 Bq/kg). This was TBE's initial evaluation for Fe-55 in soils. The result was received at the end of December and the root cause is under investigation. No client samples were associated with this cross-check. (CAR 23-31)
- 5. The Analytics September 2023 milk Sr-90 result was evaluated as Not Acceptable. The reported result was 7.28 pCi/L and the known result was 12.8 (57% of known). This sample was used as the workgroup duplicate and the carrier yields for both samples were 107% and 75%. The LCS recovery for the workgroup was at 106%. The ERA drinking water Sr-90 cross check that was analyzed around the same time was acceptable at 108%. There was no explanation for the failure. This is the first low biased failure for Sr-90 milk. The last failure (high) was in 2016. (NCR 23-24)
- 6. The ERA RAD October 2023 water Gross Alpha result was evaluated as Not Acceptable. The reported result was 53.2 pCi/L and the known result was 70.6 (acceptable range of 54.0 - 87.2 pCi/L). The reported result was the workgroup duplicate and was within 75% of the known value (within TBE QC range). The original result was 63.3 pCi/L (90% of the known). Because the LCS result was biased slightly high, the decision was made to report the lower value. (NCR 23-20) 20
- 7. The ERA RAD October 2023 water 1-131 result was evaluated as Not Acceptable. The reported value was 23.5 pCi/L and the known result was 29.7 (acceptable range of 25.8 - 33.6) The reported result was 79% of the known, which is within the acceptable TBE QC range. The workgroup was reviewed with no anomalies found. The LCS/LCSD results were 109% and 86.1 %. The sample was not processed in a timely manner as per the ERA instructions which stated to analyze shortly after receipt due to the short half-life. Going forward, the QA &/or Lab Mgr. will ensure that this analysis is started sooner. (NCR 23-21)
The Inter-Laboratory Comparison Program provides evidence of "in control" counting systems and methods, and that the laboratories are producing accurate and reliable data.
21
Intentionally left blank
APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT ANNUAL
SUMMARY
Intentionally left blank
TABLEA-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL
SUMMARY
FOR BRAIDWOOD STATION, 2023 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBERS:
50-456 & 50-457 LOCATION OF FACILITY: BRACEVILLE, IL REPORTING PERIOD:
2023 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)
MEDIUM OR REQUIRED LOCATIONS LOCATION NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN (M)
MEAN (M)
MEAN (M)
STATION#
NON ROUTINE (UNIT OF ANALYSIS ANALYSIS OF DETECTION (F)
(F)
(F)
NAME REPORTED MEASUREMENT)
PERFORMED PERFORMED (LLD)
RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS SURFACE WATER GR-B 72 4
6.9 4.7 11.2 BD-40 INDICATOR 0
(PCl!L/TER)
(54/60)
(11/12)
(12/12)
BRAIDWOOD STATION COOLING LAKE 2.7 - 13.5 3.0- 6.4 7.3-13.5 ONSITE H-3 24 200 259
<LLD 259 BD-10 INDICATOR 0
(2/20)
(2/4)
KANKAKEE RIVER DOWNSTREAM 246 - 272 246-272 5.4 MILES NE OF SITE Nl-63 24 30
<LLD
<LLD 0
FE-55 24 200
<LLD
<LLD 0
)>
GAMMA 72 I
MN-54 15
<LLD
<LLD 0
CO-58 15
<LLD
<LLD 0
FE-59 30
<LLD
<LLD 0
CO-60 15
<LLD
<LLD 0
ZN-65 30
<LLD
<LLD 0
NB-95 15
<LLD
<LLD 0
ZR-95 30
<LLD
<LLD 0
1-131 15
<LLD
<LLD 0
CS-134 15
<LLD
<LLD 0
CS-137 18
<LLD
<LLD 0
BA-140 60
<LLD
<LLD 0
LA-140 15
<LLD
<LLD 0
PUBLIC WATER GR-B 12 4
3.3 NA 3.3 BD-22 INDICATOR 0
(PC/!LITER)
(10/12)
(10/12)
WILMINGTON 2.6-4.2 2.6-4.2 6.0 MILES NE OF SITE H-3 12 200 663 NA 663 BD-22 INDICATOR 0
(12/12)
(12/12)
WILMINGTON 200-1780 200-1780 6.0 MILES NE OF SITE 1-131 12
<LLD NA 0
Nl-63 12 30 64
<LLD 64 BD-22 INDICATOR 0
(1/12)
(1/12)
WILMINGTON 6.0 MILES NE OF SITE (M) The Mean Values are calculated using the positive values. (F) Fraction of detectable measurement are indicated in parentheses.
TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL
SUMMARY
FOR BRAIDWOOD STATION, 2023 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBERS:
50-456 & 50-457 LOCATION OF FACILITY: BRACEVILLE, IL REPORTING PERIOD:
2023 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)
MEDIUM OR REQUIRED LOCATIONS LOCATION NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN (M)
MEAN (M)
MEAN (M)
STATION#
NON ROUTINE (UNITOF ANALYSIS ANALYSIS OF DETECTION (F)
(F)
(F)
NAME REPORTED MEASUREMENT)
PERFORMED PERFORMED (LLD)
RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS PUBLIC WATER FE-55 12 200
<LLD
<LLD 0
(PCIIL/TER)
GAMMA 12 MN-54 15
<LLD NA 0
C0-58 15
<LLD NA 0
FE-59 30
<LLD NA 0
CO-60 15
<LLD NA 0
ZN-65 30
<LLD NA 0
NB-95 15
<LLD NA 0
ZR-95 30
<LLD NA 0
)>
CS-134 15
<LLD NA 0
I CS-137 18 l\\l
<LLD NA 0
BA-140 60
<LLD NA 0
LA-140 15
<LLD NA 0
GROUND WATER H-3 32 200
<LLD NA BD-34 INDICATOR 0
(PCIIL/TER)
GAMMA 32 MN-54 15
<LLD NA 0
C0-58 15
<LLD NA 0
FE-59 30
<LLD NA 0
CO-60 15
<LLD NA 0
ZN-65 30
<LLD NA 0
NB-95 15
<LLD NA 0
ZR-95 30
<LLD NA 0
1-131 15
<LLD NA 0
CS-134 15
<LLD NA 0
CS-137 18
<LLD NA 0
BA-140 60
<LLD NA 0
LA-140 15
<LLD NA 0
FISH FE-55 12 260
<LLD
<LLD 0
(PCIIKG WET)
Nl-63 12 260
<LLD
<LLD 0
(M) The Mean Values are calculated using the positive values. (F) Fraction of detectable measurement are indicated in parentheses.
TABLEA-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL
SUMMARY
FOR BRAIDWOOD STATION, 2023 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBERS:
50-456 & 50-457 LOCATION OF FACILITY: BRACEVILLE, IL REPORTING PERIOD:
2023 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)
MEDIUM OR REQUIRED LOCATIONS LOCATION NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN (M)
MEAN (M)
MEAN (M)
STATION#
NON ROUTINE (UNITOF ANALYSIS ANALYSIS OF DETECTION (F)
(F)
(F)
NAME REPORTED MEASUREMENT)
PERFORMED PERFORMED (LLD)
RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS FISH GAMMA 12 (PCIIKG WET)
MN-54 130
<LLD
<LLD 0
CO-58 130
<LLD
<LLD 0
FE-59 260
<LLD
<LLD 0
CO-60 130
<LLD
<LLD 0
ZN-65 260
<LLD
<LLD 0
NB-95 NA
<LLD
<LLD 0
ZR-95 NA
<LLD
<LLD 0
1-131 NA
<LLD
<LLD 0
)>
CS-134 130
<LLD
<LLD 0
I w CS-137 150
<LLD
<LLD 0
BA-140 NA
<LLD
<LLD 0
LA-140 NA
<LLD
<LLD 0
SEDIMENT FE-55 6
2000
<LLD
<LLD 0
(PCIIKG DRY)
Nl-63 6
260
<LLD
<LLD 0
GAMMA 6
MN-54 NA
<LLD
<LLD 0
CO-58 NA
<LLD
<LLD 0
FE-59 NA
<LLD
<LLD 0
CO-60 NA
<LLD
<LLD 0
ZN-65 NA
<LLD
<LLD 0
NB-95 NA
<LLD
<LLD 0
ZR-95 NA
<LLD
<LLD 0
CS-134 150
<LLD
<LLD 0
CS-137 180
<LLD
<LLD 0
BA-140 NA
<LLD
<LLD 0
LA-140 NA
<LLD
<LLD 0
AIR PARTICULATE GR-B 415 10 20 19 21 BD-04 INDICATOR 0
(E-3 PC/ICU.METER)
(3621363)
(52152)
(52152)
ESSEX 5-40 5-48 10- 36 4.8 MILES SSE OF SITE (M) The Mean Values are calculated using the positive values. (F) Fraction of detectable measurement are indicated in parentheses.
TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL
SUMMARY
FOR BRAIDWOOD STATION, 2023 NAME OF FACILITY: BRAIDWOOD DOCKET NUMBERS:
50-456 & 50-457 LOCATION OF FACILITY: BRACEVILLE, IL REPORTING PERIOD:
2023 INDICATOR CONTROL LOCATION WITH HIGHEST ANNUAL MEAN (M)
MEDIUM OR REQUIRED LOCATIONS LOCATION NUMBER OF PATHWAY SAMPLED TYPES OF NUMBER OF LOWER LIMIT MEAN (M)
MEAN (M)
MEAN (M)
STATION#
NON ROUTINE (UN/TOF ANALYSIS ANALYSIS OF DETECTION (F)
(F)
(F)
NAME REPORTED MEASUREMENT)
PERFORMED PERFORMED (LLD)
RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS AIR PARTICULATE GAMMA 32 (E-3 PC/ICU.METER)
MN-54 NA
<LLD
<LLD 0
CO-58 NA
<LLD
<LLD 0
FE-59 NA
<LLD
<LLD 0
CO-60 NA
<LLD
<LLD 0
ZN-65 NA
<LLD
<LLD 0
NB-95 NA
<LLD
<LLD 0
ZR-95 NA
<LLD
<LLD 0
CS-134 50
<LLD
<LLD 0
)>
CS-137 60
<LLD
<LLD 0
I BA-140 NA
<LLD
<LLD 0
LA-140 NA
<LLD
<LLD 0
AIR IODINE GAMMA 415 (E-3 PC/ICU.METER)
/-131 70
<LLD
<LLD 0
VEGETATION GAMMA 126 (PCIIKG WE7)
MN-54 NA
<LLD
<LLD 0
CO-58 NA
<LLD
<LLD 0
FE-59 NA
<LLD
<LLD 0
CO-60 NA
<LLD
<LLD 0
ZN-65 NA
<LLD
<LLD 0
NB-95 NA
<LLD
<LLD 0
ZR-95 NA
<LLD
<LLD 0
1-131 60
<LLD
<LLD 0
CS-134 60
<LLD
<LLD 0
CS-137 80
<LLD
<LLD 0
BA-140 NA
<LLD
<LLD 0
LA-140 NA
<LLD
<LLD 0
DIRECT RADIATION OSLD-QUARTERL Y 184 NA 17.2 16.5 28.2 BD-ISFSl-105-4 INDICATOR 0
(MILLIREMIQTR.)
(180/180)
(4/4)
(4/4) 12.1-63.6 15.5-18.1 53.0- 63.6 0.20 MILES SE (M) The Mean Values are calculated using the positive values. (F) Fraction of detectable measurement are indicated in parentheses.
APPENDIX B LOCATION DESIGNATION, DISTANCE & DIRECTION, AND SAMPLE COLLECTION & ANALYTICAL METHODS
Intentionally left blank
TABLE B-1:
Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2023 Location A.
Surface Water BD-10 BD-25 BD-38 BD-40 BD-55 BD-56 B.
Drinking (Potable) Water BD-22 C.
Ground/Well Water BD-13 BD-34 BD-35 BD-36 BD-37 BD-50 BD-51 BD-54 D.
Air Particulates/ Air Iodine BD-02 BD-03 BD-04 BD-05 BD-06 BD-19 BD-20 BD-21 E.
Fish BD-25 BD-28 BD-41 F.
Sediment BD-10 BD-25 BD-57 G.
Food Products BWD-G1 BWD-G2 Quadrant 1 Quadrant 2 Quadrant 3 Quadrant 4 Control Location Description Kankakee River Downstream (indicator)
Kankakee River Upstream (control)
Main Drainage Ditch (indicator)
Braidwood Station Cooling Lake (indicator)
North Pond Fatlan Site (indicator)
South Pond Fatlan Site (indicator)
Wilmington (indicator)
Braidwood City Hall Well (indicator)
Gibson Well (indicator)
Joly Well (indicator)
Hutton Well (indicator)
Nurczyk Well (indicator)
Skole Well (indicator)
Fatlan Well (indicator)
Cash Well (indicator)
Custer Park (indicator)
County Line Road (control)
Essex (indicator)
Gardner (indicator)
Godley (indicator)
Nearsite NW (indicator)
Nearsite N (indicator)
Nearsite NE (indicator)
Kankakee River, Upstream (control)
Kankakee River, Discharge (indicator)
Cooling Lake (indicator)
Kankakee River, Downstream (indicator)
Kankakee River Upstream (control)
Circulating Water Slowdown Discharge (indicator)
Nearsite NE Nearsite W Clark Farm W.F. Soltwisch Bruce Corsini Bruce Sinkular Gorman Farm 8-1 Distance & Direction from Site 5.4 miles NE 9.6 miles E 1.5 miles SE Onsite (1.0 mile E) 0.6 miles NE 0.6 miles NE 6.0 miles NE 1.7 miles NNE 4.7 miles E 4.7 miles E 4.7 miles E 4.7 miles E 4.7 miles E 0.6 miles NE 0.9 miles NE 5.0 miles E 6.2 miles ESE 4.8 miles SSE 5.5 miles SW 0.5 miles WSW 0.3 miles NW 0.6 miles N 0.5 miles NE 9.6 miles E 5.4 miles E Onsite (1.0 mile E) 5.4 miles NE 9.6 miles E 5.4 miles E 0.54 miles NE 0.21 miles W 3.8 miles ENE 4.5 miles SSE 5.4 miles SSW 1.9 miles NNW 9.0 miles NE
TABLE B-1:
Location Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2023 Location Description Distance & Direction from Site I.
Environmental Dosimetry - OSLO Inner Ring BD-101 BD-102 BD-103 BD-104 BD-105 BD-106 BD-107 BD-108 BD-109 BD-110 BD-111a BD-112 BD-113a BD-114 BD-115 BD-116 Outer Ring BD-201 BD-202 BD-203 BD-204 BD-205 BD-206 BD-207 BD-208 BD-209 BD-210 BD-211 BD-212 BD-213 BD-214 BD-215 BD-216 Other BD-02 BD-03 BD-04 BD-05 BD-06 BD-19 BD-20 BD-21 ISFSI BD-ISFSl-104-3 BD-ISFSl-104-4 BD-ISFSl-105-3 BD-ISFSl-105-4 BD-ISFSl-110-3 BD-ISFSl-110-4 Custer Park (indicator) 13000 W Road (control)
Essex (indicator)
Gardner (indicator)
Godley (indicator)
Nearsite NW (indicator)
Nearsite N (indicator)
Nearsite NE (indicator)
B-2 0.5 miles N 1.1 miles NNE 1.0 mile NE 0.7 miles ENE 2.2 miles E 2.5 miles ESE 3.2 miles SE 3.2 miles SSE 3.8 miles S 2.8 miles SSW 1.4 miles SW 0.7 miles WSW 0.5 miles W 0.4 miles WNW 0.3 miles NW 0.4 miles NNW 4.2 miles N 4.8 miles NNE 4.9 miles NE 4.3 miles ENE 4.0 miles E 4.5 miles ESE 4.5 miles SE 4.5 miles SSE 4.8 miles S 5.3 miles SSW 4.8 miles SW 5.0 miles WSW 4.8 miles W 4.3 miles WNW 4.5 miles NW 4.0 miles NNW 5.0 miles E 6.2 miles ESE 4.8 miles SSE 5.5 miles SW 0.5 miles WSW 0.3 miles NW 0.6 miles N 0.5 miles NE 0.11milesE 0.13 miles E 0.23 miles SE 0.20 miles SE 0.18 miles SE 0.15 miles SE
N p
Q R
A B
C D
E F
G H
J K
L M
N p
Q R
TABLE B-1:
Sector WNW WNW NW NNW Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction, Braidwood Station, 2023 Distance in Miles from the Braidwood Station ISFSI Pad, 2023 Residence Miles 0.7 0.7 0.7 0.7 Distance in Miles from the Braidwood Station Reactor Buildings, 2023 Sector Residence Miles Livestock Miles Milk Farm Miles N
0.5 2.6 NNE 0.9 NE 0.7 ENE 0.8 3.3 E
1.5 2.3 ESE 2.2 2.3 SE 2.7 2.7 SSE 4.5 s
4.2 4.8 SSW 1.3 5.3 SW 0.4 1.2 WSW 0.5 w
0.4 1.6 8.7 WNW 0.4 NW 0.4 NNW 0.4 B-3
TABLE B-2:
Sample Medium Surface Water Surface Water Surface Water Surface Water Surface Water Drinking Water Drinking Water Drinking Water Drinking Water Drinking Water Drinking Water Ground/
Well Water Ground/
Well Water Fish Fish Fish Sediment Sediment Sediment Air Particulates Air Particulates Air Iodine Food Products OSLO Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Braidwood Station, 2023 Analysis Sampling Method Analytical Procedure Number Gamma Monthly composite from weekly grab TBE, TBE-2007 Gamma-Emitting Radioisotope Analysis Spectroscopy samples Gross Beta Monthly composite from weekly grab TBE, TBE-2008 Gross Alpha and/or Gross Beta Activity samples in Various Matrices lron-55 Monthly composite from weekly grab TBE, TBE-2006 lron-55 Activity in Various Matrices samples Nickel-63 Monthly composite from weekly grab TBE, TBE-2013 Radionickel Activity in Various Matrices samples Tritium Quarterly composite from weekly grab TBE, TBE-2011 Tritium Analysis in Drinking Water by samples Liquid Scintillation Gamma Monthly composite from weekly TBE, TBE-2007 Gamma-Emitting Radioisotope Analysis Spectroscopy composite samples TBE. TBE-2023 Compositing of Samples Monthly composite from weekly TBE, TBE-2008 Gross Alpha and/or Gross Beta Activity Gross Beta in Various Matrices composite samples TBE. TBE-2023 Compositing of Samples Iodine Monthly composite from weekly TBE, TBE-2012 Radioiodine in Various Matrices composite samples TBE. TBE-2023 Compositing of Samples lron-55 Monthly composite from weekly grab TBE, TBE-2006 lron-55 Activity in Various Matrices samples Nickel-63 Monthly composite from weekly grab TBE, TBE-2013 Radionickel Activity in Various Matrices samples Monthly composite from weekly TBE, TBE-2011 Tritium Analysis in Drinking Water by Tritium composite samples Liquid Scintillation TBE. TBE-2023 Compositing of Samples Gamma Quarterly grab sample TBE, TBE-2007 Gamma-Emitting Radioisotope Analysis Spectroscopy Tritium Quarterly grab sample TBE, TBE-2011 Tritium analysis in Drinking Water by Liquid Scintillation Gamma Semi-annual samples collected via TBE, TBE-2007 Gamma-Emitting Radioisotope Analysis Spectroscopy electro-shocking or other techniques lron-55 Semi-annual samples collected via TBE, TBE-2006 lron-55 Activity in Various Matrices electro-shocking or other techniques Nickel-63 Semi-annual samples collected via TBE, TBE-2013 Radionickel Activity in Various Matrices electroshocking or other techniques Gamma Semi-annual grab samples TBE-2007 Gamma-Emitting Radioisotope Analysis Spectroscopy lron-55 Semi-annual grab samples TBE, TBE-2006 lron-55 Activity in Various Matrices Nickel-63 Semi-annual grab samples TBE, TBE-2013 Radionickel Activity in Various Matrices Gross Beta One-week composite of continuous air TBE, TBE-2008 Gross Alpha and/or Gross Beta Activity sampling through glass fiber filter paper in Various Matrices Gamma Quarterly composite of each station TBE, TBE-2007 Gamma-Emitting Radioisotope Analysis Spectroscopy TBE. TBE-2023 Compositing of Samples 1-131 Weekly composite of continuous air TBE, TBE-2007 Gamma-Emitting Radioisotope Analysis sampling through charcoal filter Gamma Grab samples during the growing season TBE, TBE-2007 Gamma-Emitting Radioisotope Analysis Spectroscopy Optically Stimulated Quarterly OSLDs comprised of two Luminescence Al2O3:C Landauer Incorporated Landauer Incorporated Dosimetry elements.
B-4
/
Figure B-1 Inner Ring and 0th of Braidwoods etr ot_SLo Locations aron,2023 B-5
S,,,rtt, w..........,,
ED21D Figure B-2 Fixed Air Sampling and Outer Ring OSLO Locations of Braidwood Station, 2023 8-6 Legend
/
@ 1 Braidwood Station
- 2. Outer Ring Dosimeters
~ 3. /\\Jr Sampling Locations
N t
0 1
2
... 1111 I
3 4
I I
5 I 14iles
.,A, 1Jn1id'-"Vod Station *..;c
- ::.a e.,:
Figure B-3 ll.113 Cooirty um, Rid Essex OFFSITE DOSE CALCULATION MANUAL BRAIDWOOD STATION FIGURE 11-3 INGESTlotf AND WA TIROCIRNE EXPOSURE PA TH WAY SAMPLE LOCA T!OHS
- Water
- Sedimrnt e Fish X Mtlk Ingestion and Waterborne Exposure Pathway Sample Locations of Braidwood Station, 2023 8-7
Intentionally left blank
APPENDIX C DATA TABLES AND FIGURES
Intentionally left blank
Table C-1.1 CONCENTRATIONS OF GROSS BETA IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION PERIOD BD-10 BD-25 BD-38 BD-40 BD-55 BD-56 01/05/23 - 01/26/23 4.8 +/- 2.1 3.0 +/- 2.0 12.3 +/- 3.0 12.5 +/- 3.0 3.9 +/- 1.8 5.4 +/- 2.3 02/09/23 - 02/23/23 5.1 +/- 2.0 6.4 +/- 2.1 6.9 +/- 2.5 13.5 +/- 2.9 4.3 +/- 1.7 3.6 +/- 1.9 03/02/23 - 03/30/23 7.3 +/- 2.1 4.8 +/- 1.9 12.3 +/- 2.8 10.5 +/- 2.6 4.3 +/- 1.7 4.4 +/- 2.1 04/06/23 - 04/28/23 3.8 +/- 2.0 3.3 +/- 1.9 5.4 +/- 2.4 9.6 +/- 2.7 4.2 +/- 1.8 3.0 +/- 2.0 05/05/23 - 05/25/23
< 2.8
< 2.9 3.5 +/- 2.4 7.3 +/- 2.6 3.0 +/- 1.8
< 3.2 06/01/23 - 06/29/23 4.7 +/- 2.0 4.9 +/- 2.0 7.6 +/- 2.4 12.4 +/- 2.7 5.9 +/- 1.9 5.7 +/- 2.1 07/06/23 - 07/27/23 3.8 +/- 2.2 3.1 +/- 2.1 5.1 +/- 2.6 9.0 +/- 2.8 2.7 +/- 1.8
< 3.0 08/03/23 - 08/31/23 5.1 +/- 2.0 5.0 +/- 2.0 4.9 +/- 2.5 11.8+/-2.9 2.7 +/- 1.5
< 2.4 09/07/23 - 09/28/23
< 3.3 5.5 +/- 2.5 9.3 +/- 3.1 12.1 +/- 3.3 4.1 +/- 2.0
< 2.9 10/04/23 - 10/26/23 6.3 +/- 2.0 4.4 +/- 1.8 6.3 +/- 2.2 11.7 +/- 2.7 5.3 +/- 1.7 6.0 +/- 1.9 11/02/23 - 11/30/23 7.1 +/- 2.4 5.9 +/- 2.3 12.5 +/- 3.2 12.9 +/- 3.2 3.8 +/- 1.7 5.0 +/- 2.3 12/07/23 - 12/28/23 5.9 +/- 1.9 4.8 +/- 1.8 10.2 +/- 2.5 11.7 +/- 2.6 4.4 +/- 1.6 5.6 +/- 1.9 MEAN +/- 2 STD DEV 4.7 +/- 3.2 4.6 +/- 2.6 7.2 +/- 4.1 10.4 +/- 5.4 4.0 +/- 1.7 4.6 +/- 2.0 Table C-1.2 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD BD-10 BD-25 BD-38 BD-40 BD-55 BD-56 01/05/23 - 03/30/23
< 181
< 189
< 178
< 185
< 192
< 188 04/06/23 - 06/29/23 246 +/- 119
< 179
< 180
< 181
< 181
< 179 07/06/23 - 09/28/23 272 +/- 130
< 195
< 198
< 197
< 198
< 196 10/04/23 - 12/28/23
< 194
< 192
< 194
< 194
< 198
< 194 MEAN +/- 2 STD DEV 259 +/- 37 THE MEAN AND TWO STANDARD DEV/A TION ARE CALCULATED USING THE POSITIVE VALUES C-1
Table C-1.3 Table C-1.4 CONCENTRATIONS OF NICKEL-63 IN SURFACE WATER SAMPLES COLLECTED IN THE VACINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION PERIOD BD-10 BD-25 01/05/23 - 01/26/23
< 21
< 26 02/16/23 - 02/23/23
< 22
< 23 03/16/23 - 03/30/23
< 27
< 28 04/06/23 - 04/28/23
< 23
< 22 05/05/23 - 05/25/23
< 19
< 25 06/01 /23 - 06/29/23
< 19
< 20 07 /06/23 - 07 /27 /23
< 16
< 19 08/03/23 - 08/31 /23
< 19
< 20 09/07/23 - 09/28/23
< 15
< 15 10/04/23 - 1 0/26/23
< 18
< 18 11/02/23 - 11/30/23
< 20
< 20 12/07/23 - 12/28/23
< 20
< 20 MEAN CONCENTRATIONS OF IRON-55 IN SURFACE WATER SAMPLES COLLECTED IN THE VACINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION PERIOD BD-10 BD-25 01/05/23 - 01/26/23
< 144
< 186 02/16/23 - 02/23/23
< 72
< 107 03/16/23 - 03/30/23
< 46
< 160 04/06/23 - 04/28/23
< 49
< 86 05/05/23 - 05/25/23
< 75
< 114 06/01/23 - 06/29/23
< 74
< 90 07/06/23 - 07/27/23
< 87
< 89 08/03/23 - 08/31/23
< 110
< 111 09/07/23 - 09/28/23
< 117
< 71 10/04/23 - 10/26/23
< 78
< 103 11/02/23 - 11/30/23
< 74
< 77 12/07/23 - 12/28/23
< 77
< 74 MEAN C-2
Table C-1.5 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BD-10 01/05/23 - 01/26/23
< 5
< 5
< 11
< 6
< 13
< 7
< 9
< 9
< 6
< 5
< 24
< 8 02/09/23 02/23/23
< 6
< 8
< 15
< 7
< 14
< 7
< 11
< 10
< 8
< 7
< 35
< 9 03/02/23 03/30/23
< 4
< 5
< 11
< 6
< 9
< 6
< 9
< 14
< 5
< 4
< 35
< 9 04/06/23 04/28/23
< 6
< 7
< 15
< 8
< 18
< 9
< 10
< 11
< 10
< 8
< 23
< 14 05/05/23 - 05/25/23
< 2
< 2
< 4
< 2
< 4
< 2
< 4
< 10
< 2
< 2
< 18
< 5 06/01/23 - 06/29/23
< 5
< 6
< 12
< 7
< 15
< 8
< 9
< 11
< 6
< 7
< 31
< 8 07/06/23 - 07/27/23
< 6
< 5
< 9
< 6
< 9
<4
< 8
< 8
< 5
< 4
< 27
< 9 08/03/23 - 08/31/23
< 5
< 5
< 11
< 5
< 9
< 6
< 8
< 8
< 6
< 6
< 24
< 9 09/07/23 - 09/28/23
< 4
< 4
< 11
< 7
< 10
< 5
< 10
< 13
< 5
< 3
< 30
< 14 10/04/23 - 10/26/23
< 4
< 5
< 11
< 5
< 9
< 5
< 8
< 14
< 5
<4
< 28
< 11 11/02/23 - 11/30/23
< 3
< 3
< 8
< 3
< 6
< 3
< 7
< 8
< 4
<4
< 22
< 6 12/07/23 - 12/28/23
< 5
< 6
< 11
< 6
< 12
< 6
< 9
< 13
< 6
< 5
< 29
< 12 MEAN BD-25 01/05/23 - 01/26/23
< 5
< 6
< 13
< 6
< 11
< 6
< 10
< 9
< 6
< 5
< 24
< 8 02/16/23 02/23/23
< 6
< 4
< 12
< 7
< 17
< 5
< 10
< 12
< 8
< 7
< 32
< 13 03/16/23 - 03/30/23
< 4
< 5
< 9
<4
< 12
< 4
< 9
< 15
< 4
< 5
< 32
< 9 0
04/06/23 - 04/28/23 I
< 7
< 6
< 15
< 6
< 16
< 6
< 9
< 10
< 9
< 7
< 25
< 10
(.I) 05/05/23 - 05/25/23
< 2
< 2
< 4
< 2
< 3
< 2
< 3
< 9
< 2
< 2
< 17
< 6 06/01/23 06/29/23
< 7
< 6
< 11
< 9
< 13
< 7
< 10
< 14
< 8
< 7
< 37
< 12 07/06/23 07/27/23
< 6
< 5
< 8
< 8
< 12
< 7
< 9
< 8
< 6
< 5
< 25
< 7 08/03/23 08/31/23
< 5
< 5
< 11
< 6
< 10
< 5
< 10
< 8
< 6
< 5
< 24
< 7 09/07/23 - 09/28/23
< 4
< 5
< 11
< 6
< 9
< 6
< 11
< 11
< 6
< 6
< 26
< 10 10/04/23 - 10/26/23
< 4
< 6
< 12
< 5
< 8
< 5
< 10
< 14
< 6
< 5
< 35
< 12 11/02/23 - 11 /30/23
< 4
< 3
< 8
< 3
< 6
<4
< 7
< 9
< 4
< 3
< 21
< 7 12/07/23 - 12/28/23
< 5
< 5
< 11
< 5
< 13
< 5
< 9
< 14
< 6
< 6
< 34
< 11 MEAN BD-38 01/05/23 - 01/26/23
< 6
<6
< 13
< 4
< 12
< 7
< 10
< 7
< 5
<4
< 26
< 9 02/02/23 - 02/23/23
< 8
<8
< 17
< 7
< 13
< 8
< 13
< 13
< 7
< 9
< 39
< 12 03/02/23 - 03/30/23
< 5
< 5
< 11
< 6
< 10
< 5
< 10
< 14
<4
< 6
< 31
< 13 04/06/23 04/28/23
< 7
< 7
< 15
< 10
< 16
< 8
< 8
< 9
< 7
< 7
< 24
< 10 05/05/23 05/25/23
< 2
< 2
< 5
< 2
<4
< 2
< 4
< 11
< 2
< 2
< 19
< 6 06/01/23 06/29/23
< 5
< 6
< 11
< 3
< 10
< 7
< 12
< 13
< 7
< 7
< 41
< 10 07/06/23 - 07/27/23
< 4
< 6
< 11
< 5
< 10
< 4
< 10
< 8
< 4
< 5
< 27
< 6 08/03/23 - 08/24/23
< 4
< 5
< 10
<4
< 10
< 4
< 9
< 14
< 5
< 5
< 30
< 10 09/14/23 - 09/28/23
< 3
< 4
< 9
<4
< 7
< 4
< 6
< 9
< 4
< 3
< 23
< 8 10/04/23 10/26/23
< 3
< 3
< 7
< 4
< 7
< 4
< 6
< 11
< 4
< 3
< 23
< 6 11/02/23 11/30/23
< 3
< 3
< 7
< 3
< 7
< 3
< 6
< 8
< 3
< 3
< 20
< 7 12/07/23 12/28/23
< 5
< 5
< 10
< 5
< 12
< 6
< 8
< 14
< 5
< 5
< 33
< 10 MEAN
Table C-1.5 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BD-40 01 /05/23 - 01/26/23
< 6
< 8
< 14
< 8
< 14
< 7
< 14
< 9
< 6
< 7
< 27
< 14 02/02/23 - 02/23/23
< 5
< 8
< 15
< 6
< 12
< 9
< 11
< 11
< 7
< 7
< 31
< 10 03/02/23 - 03/30/23
< 5
< 6
< 14
< 5
< 12
< 7
< 12
< 14
< 6
< 6
< 33
< 10 04/06/23 - 04/28/23
< 8
< 7
< 12
< 10
< 7
< 6
< 12
< 10
< 6
< 6
< 26
< 11 05/05/23 - 05/25/23
< 2
< 2
< 5
< 2
<4
< 2
< 4
< 9
< 2
< 2
< 17
< 6 06/01/23 - 06/29/23
< 6
< 5
< 9
< 8
< 11
< 6
< 11
< 11
< 7
< 6
< 32
< 12 07/08/23 - 07/27/23
< 4
< 5
< 10
< 4
< 11
< 6
< 6
< 7
<6
< 4
< 21
< 5 08/03/23 - 08/31/23
< 4
< 5
< 8
< 5
< 9
< 5
< 9
< 8
<6
< 5
< 22
< 7 09/07/23 - 09/28/23
< 6
<4
< 12
< 7
< 9
< 6
< 8
< 14
<5
< 5
< 37
< 11 10/04/23 - 10/26/23
< 5
<5
< 10
< 5
< 10
< 4
< 8
< 13
< 5
< 5
< 28
< 11 11/02/23 - 11/30/23
< 3
< 3
< 7
<4
< 7
< 4
< 6
< 8
< 3
< 3
< 20
< 6 12/07/23 - 12/28/23
< 6
< 6
< 15
< 6
< 10
< 6
< 10
< 14
<6
< 5
< 37
< 12 MEAN BD-55 01/12/23 - 01/26/23
< 6
< 7
< 11
< 6
< 12
< 7
< 12
< 10
< 7
< 6
< 25
< 10 02/09/23 - 02/23/23
< 7
< 8
< 18
< 7
< 18
< 8
< 16
< 12
< 9
< 7
< 40
< 14 03/02/23 - 03/30/23
< 4
< 5
< 9
<6
< 8
< 5
< 9
< 14
< 5
< 5
< 32
< 11
(')
04/06/23 - 04/28/23
< 7
< 7
< 13
< 8 I
< 12
< 8
< 11
< 12
< 7
< 8
< 28
< 10
~
05/05/23 - 05/25/23
< 1
< 1
< 2
< 1
< 2
< 1
< 2
< 5
< 1
< 1
< 9
< 3 06/01 /23 - 06/29/23
< 7
< 8
< 15
< 8
< 16
< 7
< 11
< 14
< 7
< 6
< 35
< 13 07/06/23 - 07/27/23
< 5
< 5
< 9
< 6
< 11
< 5
< 9
< 9
< 5
< 5
< 21
< 8 08/03/23 - 08/31/23
< 5
< 5
< 11
< 5
< 11
< 5
< 10
< 7
< 5
< 5
< 23
< 10 09/07/23 - 09/28/23
< 4
<4
< 9
< 6
< 10
<4
< 9
< 12
< 6
<4
< 25
< 10 10/04/23 - 10/26/23
< 4
<4
< 8
< 4
< 9
< 5
< 7
< 14
< 5
< 5
< 29
< 12 11/02/23 - 11/30/23
< 3
<4
< 10
< 4
< 7
<4
< 6
< 10
< 3
<4
< 24
< 9 12/07/23 - 12/28/23
< 4
< 5
< 14
< 6
< 9
< 6
< 12
< 14
<6
< 5
< 29
< 14 MEAN BD-56 01/05/23 - 01/26/23
< 4
< 6
< 10
< 4
< 12
<6
< 9
< 8
< 6
< 5
< 23
< 8 02/09/23 - 02/23/23
< 7
< 8
< 11
< 6
< 19
< 9
< 15
< 12
< 10
< 9
< 38
< 14 03/02/23 - 03/30/23
< 5
< 5
< 12
< 6
< 12
<6
< 10
< 14
< 6
< 6
< 35
< 14 04/06/23 - 04/28/23
< 9
< 7
< 12
< 10
< 13
< 7
< 12
< 11
< 6
< 7
< 29
< 8 05/05/23 - 05/25/23
< 2
< 2
< 5
< 2
<4
< 2
<4
< 10
< 2
< 2
< 19
< 7 06/01/23 - 06/29/23
< 5
< 6
< 14
< 8
< 11
< 6
< 12
< 13
< 7
< 7
< 37
< 11 07/06/23 - 07/27/23
< 6
< 6
< 11
<5
< 12
< 6
< 13
< 10
< 7
< 7
< 27
< 8 08/03/23 - 08/31/23
< 5
< 4
< 11
<5
< 11
< 5
< 8
< 10
< 6
< 6
< 26
< 9 09/07/23 - 09/28/23
< 5
< 6
< 11
< 4
< 10
< 5
< 10
< 14
< 6
< 5
< 30
< 14 10/04/23 - 10/26/23
< 4
< 4
< 14
< 4
< 9
< 5
< 8
< 14
< 5
< 4
< 31
< 10 11 /02/23 - 11/30/23
<4
< 3
< 8
< 4
< 8
< 4
< 6
< 10
< 4
< 4
< 22
< 7 12/07/23 - 12/28/23
< 5
< 5
< 11
< 5
< 10
< 7
< 9
< 15
< 5
< 5
< 37
< 12 MEAN
Table C-I1.1 Table C-I1.2 Table C-I1.3 CONCENTRATIONS OF GROSS BETA IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RES UL TS IN UNITS OF PC I/LITER +/- 2 SIGMA COLLECTION PERIOD BD-22 12/29/22 - 01/26/23 2.6 +/- 1.6 01/26/23 - 02/23/23
< 2.4 02/23/23 - 03/30/23 4.1 +/- 1.6 03/30/23 - 04/28/23 3.3 +/- 1.5 04/28/23 - 05/25/23 3.6 +/- 1.6 05/25/23 - 06/29/23 2.9 +/- 1.7 06/29/23 - 07/27/23
< 2.4 07/27/23 - 08/31/23 3.3 +/- 1.6 08/31/23 - 09/28/23 3.2 +/- 2.0 09/28/23 10/26/23 3.3 +/- 1.6 10/26/23 - 11/30/23 4.2 +/- 1.9 11/30/23 - 12/28/23 2.6 +/- 1.7 MEAN+/- 2 STD DEV 3.3 +/- 1.1 CONCENTRATIONS OF TRITIUM IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION PERIOD 80-22 12/29/22 - 01/26/23 1780 +/- 261 01/26/23 - 02/23/23 795 +/- 158 02/23/23 - 03/30/23 226 +/- 116 03/30/23 - 04/28/23 586 +/- 146 04/28/23 - 05/25/23 1130 +/- 194 05/25/23 - 06/29/23 769 +/- 167 06/29/23 - 07/27/23 236 +/- 129 07/27/23 - 08/31/23 200 +/- 124 08/31/23 - 09/28/23 580 +/- 134 09/28/23 - 10/26/23 514 +/- 145 10/26/23 - 11/30/23 332 +/- 134 11/30/23 - 12/28/23 812 +/- 159 MEAN+/- 2 STD DEV 663 +/- 904 CONCENTRATIONS OF 1-131 IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION PERIOD 80-22 12/29/22 - 01/26/23
< 0.9 01/26/23 - 02/23/23
< 0.9 02/23/23 - 03/30/23
< 1.0 03/30/23 - 04/28/23
< 0.8 04/28/23 - 05/25/23
< 0.8 05/25/23 - 06/29/23
< 0.9 06/29/23 - 07/27/23
< 0.9 07/27/23 - 08/31/23
< 0.9 08/31/23 - 09/28/23
< 0.8 09/28/23 - 10/26/23
< 0.9 10/26/23 - 11/30/23
< 0.9 11/30/23 - 12/28/23
< 1.0 MEAN THE MEAN AND TWO STANDARD DEV/AT/ON ARE CALCULATED USING THE POSITIVE VALUES C-5
Table C-11.4 Table C-11.5 CONCENTRATIONS OF NICKEL-63 IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION PERIOD BD-22 12/29/22 - 01 /26/23
< 17 01/26/23 - 02/23/23
< 29 02/23/23 - 03/30/23
< 20 03/30/23 - 04/28/23
< 20 04/28/23 - 05/25/23
< 22 05/25/23 - 06/29/23
< 19 06/29/23 - 07/27/23
< 19 07/27/23 - 08/31/23
< 17 08/31/23 - 09/28/23
< 17 09/28/23 - 10/26/23
< 19 10/26/23 - 11/30/23
< 21 11/30/23 - 12/28/23
< 20 MEAN CONCENTRATIONS OF IRON-55 IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER +/- 2 SIGMA COLLECTION PERIOD BD-22 12/29/22 - 01/26/23
< 64 01 /26/23 - 02/23/23
< 171 02/23/23 - 03/30/23
< 60 03/30/23 - 04/28/23
< 127 04/28/23 - 05/25/23
< 83 05/25/23 - 06/29/23
< 60 06/29/23 - 07/27/23
< 57 07/27/23 - 08/31/23
< 69 08/31/23 - 09/28/23
< 89 09/28/23 - 1 0/26/23
< 128 10/26/23 - 11 /30/23
< 74 11 /30/23 - 12/28/23
< 75 MEAN THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-6
Table C-11.6 CONCENTRATIONS OF GAMMA EMITTERS IN PUBLIC WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER +/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 BD-22 12/29/22 - 01/26/23
< 2
< 3
< 6
< 2
<5
< 2
< 4
< 3
< 2
< 17
< 5 01/26/23 - 02/23/23
< 2
< 2
< 5
< 2
<4
< 2
< 4
< 2
< 2
< 15
< 5 02/23/23 - 03/30/23
< 3
< 3
< 7
< 3
< 5
< 3
< 5
< 3
< 3
< 20
< 8 03/30/23 - 04/28/23
< 2
< 2
< 4
< 2
< 3
< 2
< 3
< 2
< 2
< 13
< 5 04/28/23 - 05/25/23
< 2
< 2
< 3
< 2
< 3
< 2
< 3
< 2
< 2
< 12
<4 05/25/23 - 06/29/23
< 1
< 1
< 3
< 1
< 2
< 2
< 2
< 1
< 1
< 13
< 5 06/29/23 - 07/27/23
< 2
< 2
< 4
< 2
< 3
< 2
< 3
< 2
< 2
< 11
<4 07/27/23 - 08/31/23
< 5
< 6
< 11
< 6
< 11
< 5
< 9
<6
< 5
< 22
< 11 08/31/23 - 09/28/23
< 3
< 3
< 8
< 3
< 7
<4
< 7
< 3
< 3
< 23
< 9 09/28/23 - 10/26/23
< 1
< 2
< 3
< 2
< 3
< 2
< 3
< 1
< 1
< 14
<4 10/26/23 - 11/30/23
< 2
< 3
< 5
< 2
< 5
< 3
< 5
< 2
< 3
< 18
< 6 11/30/23 - 12/28/23
< 1
< 1
< 3
< 1
< 2
< 1
< 2
< 1
< 1
< 12
< 4
(')
MEAN I
--.J
Table C-111.1 CONCENTRATIONS OF TRITIUM IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RES UL TS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION PERIOD BD-13 BD-34 BD-35 BD-36 BD-37 BD-50 BD-51 01/12/23 - 01/12/23
< 186
< 183
< 182
< 180
< 183
< 181
< 178 04/12/23 - 04/12/23
< 183
< 185
< 189
< 185
< 179
< 185
< 184 07/13/23 - 07/13/23
< 197
< 197
< 199
< 199
< 195
< 182
< 194 10/ 12/23 - 10/ 12/23
< 179
< 173
< 174
< 177
< 184
< 183 12/07/23 12/07/23
< 183 MEAN C-8 BD-54
< 182
< 190
< 196
< 187
Table C-111.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BD-13 01/12/23 - 01/12/23
< 8
< 6
< 19
< 10
< 14
< 6
< 13
< 13
< 8
< 6
< 37
< 12 04/12/23 - 04/12/23
< 6
< 6
< 12
< 7
< 10
< 6
< 13
< 11
< 5
< 6
< 34
< 12 07/13/23 - 07/13/23
< 6
< 8
< 14
< 7
< 17
< 8
< 15
< 14
< 9
< 8
< 32
< 13 10/12/23 - 10/12/23
< 7
< 7
< 12
< 7
< 13
< 9
< 13
< 10
<8
< 8
< 40
< 13 MEAN BD-34 01/12/23 - 01/12/23
< 6
< 6
< 14
< 8
< 13
<6
< 9
< 10
< 8
< 5
< 25
< 12 04/12/23 - 04/12/23
<4
< 7
< 11
< 7
< 14
< 6
< 11
< 12
< 7
< 7
< 34
< 11 07/13/23 - 07/13/23
< 8
< 10
< 18
< 15
< 16
< 11
< 15
< 13
< 8
< 8
< 38
< 12 10/12/23 - 10/12/23
< 7
< 7
< 12
< 7
< 15
< 9
< 10
< 10
< 8
< 9
< 36
< 14 MEAN C)
I (0 BD-35 01/12/23 - 01/12/23
< 6
< 6
< 11
< 4
< 11
< 5
< 12
< 11
< 6
< 7
< 28
< 10 04/12/23 - 04/12/23
< 5
< 6
< 10
< 6
< 9
< 6
< 10
< 11
< 5
< 5
< 29
< 8 07/13/23 - 07/13/23
< 7
< 7
< 17
< 8
< 15
< 8
< 12
< 14
< 9
< 9
< 31
< 12 10/12/23 - 10/12/23
< 7
< 10
< 19
< 11
< 18
< 12
< 16
< 13
< 11
< 8
< 40
< 13 MEAN BD-36 01/12/23 - 01/12/23
< 7
< 8
< 15
< 7
< 15
< 9
< 14
< 13
< 7
< 7
< 34
< 11 04/12/23 - 04/12/23
< 6
< 6
< 11
< 8
< 11
< 6
< 9
< 12
< 7
< 7
< 32
< 8 07/13/23 - 07/13/23
< 8
< 8
< 14
< 8
< 18
< 7
< 13
< 11
< 8
< 7
< 31
< 12 10/12/23 - 10/12/23
< 7
< 7
< 13
< 9
< 17
< 9
< 13
< 12
< 7
< 8
< 32
< 11 MEAN BD-37 01 /12/23 - 01/12/23
< 8
< 5
< 19
< 8
< 16
< 8
< 14
< 15
< 5
< 8
< 38
< 14 04/12/23 - 04/12/23
< 5
< 5
< 12
< 5
< 13
< 6
< 9
< 11
< 7
< 5
< 32
< 9 07/13/23 - 07/13/23
< 6
< 5
< 10
< 6
< 14
< 7
< 12
< 13
< 7
< 6
< 27
< 10 10/12/23 - 10/12/23
< 8
< 8
< 15
< 8
< 15
< 10
< 14
< 13
< 9
< 8
< 34
< 13 MEAN
Table C-111.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUND/WELL WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BD-50 01/12/23 - 01/12/23
< 7
< 7
< 14
< 7
< 15
< 7
< 12
< 13
< 6
< 8
< 33
< 7 04/12/23 - 04/12/23
< 6
< 6
< 12
< 9
< 10
< 5
< 8
< 10
< 8
< 6
< 35
< 11 07/27/23 - 07/27/23
< 4
<4
< 11
< 6
< 10
< 4
< 7
< 7
< 6
< 5
< 19
< 7 12/07/23 - 12/07/23
< 6
< 6
< 13
< 7
< 12
< 8
< 11
< 11
< 7
< 5
< 29
< 12 MEAN BD-51 01/12/23 - 01/12/23
< 6
< 6
< 11
< 5
< 7
< 7
< 9
< 11
< 6
< 6
< 26
< 8 04/12/23 - 04/12/23
< 6
< 7
< 12
< 6
< 10
< 5
< 8
< 12
< 5
< 6
< 25
< 9 07/13/23 - 07/13/23
< 6
<6
< 12
< 6
< 15
< 7
< 13
< 14
< 8
< 7
< 29
< 8 10/12/23 - 10/12/23
< 6
< 5
< 15
< 7
< 16
< 7
< 11
< 12
< 6
< 6
< 29
< 8 MEAN
(')
I....
0 BD-54 01/12/23 - 01/12/23
< 5
< 6
< 14
< 8
< 14
< 5
< 9
< 11
< 7
< 7
< 34
< 14 04/12/23 - 04/12/23
< 7
< 5
< 15
< 7
< 15
< 7
< 13
< 10
< 8
< 6
< 30
< 10 07/13/23 - 07/13/23
< 7
< 5
< 13
< 8
< 11
< 6
< 11
< 12
< 6
< 6
< 31
< 10 10/12/23 - 10/12/23
< 8
< 7
< 13
< 7
< 17
< 8
< 11
< 11
< 9
< 7
< 35
< 12 MEAN
Table C-IV.1 CONCENTRATIONS OF IRON-55, NICKEL-63 AND GAMMA EMITTERS IN FISH SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/KG WET+/- 2 SIGMA COLLECTION SITE PERIOD Fe-55 Ni-63 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BD-25 Smallmouth Bass 05/08/23
< 174
< 55
< 66
< 64
< 152
< 71
< 85
< 68
< 103
< 185
< 73
< 63
< 309
< 144 Golden Redhorse 05/08/23
< 209
< 225
< 57
< 75
< 117
< 50
< 144
< 62
< 122
< 215
< 43
< 51
< 365
< 103 Smallmouth Bass 10/04/23
< 254
< 215
< 46
< 45
< 104
< 53
< 101
< 54
< 86
< 156
< 57
< 48
< 326
< 108 Common Carp 10/04/23
< 248
< 209
< 34
< 39
< 95
< 36
< 83
< 37
< 61
< 104
< 39
< 35
< 245
< 100 MEAN BD-28 Common Carp 05/08/23
< 259
< 203
< 70
< 67
< 183
< 101
< 136
< 80
< 134
< 284
< 87
< 65
< 684
< 126 Smal/mouth Bass 05/08/23
< 254
< 200
< 50
< 55
< 108
< 69
< 96
< 60
< 126
< 181
< 45
< 57
< 429
< 153 0
I Golden Redhorse 10104123
< 260
< 183
< 35
< 36
< 84
< 35
< 88
< 41
< 66
< 108
< 34
< 34
< 225
< 79 Smallmouth Bass 10104123
< 199
< 144
< 27
< 55
< 145
< 77
< 111
< 70
< 111
< 162
< 57
< 43
< 358
< 161 MEAN BD-41 Common Carp 05/08123
< 247
< 196
< 78
< 80
< 207
< 81
< 127
< 87
< 134
< 306
< 79
< 74
< 672
< 188 Channel Catfish 05/08/23
< 240
< 174
< 57
< 65
< 120
< 75
< 117
< 68
< 96
< 192
< 61
< 57
< 412
< 106 Largemouth Bass 10/04/23
< 258
< 168
< 69
< 44
< 137
< 58
< 148
< 50
< 127
< 173
< 67
< 40
< 376
< 99 Channel Catfish 10/04/23
< 198
< 154
< 52
< 70
< 117
< 50
< 150
< 55
< 100
< 187
< 60
< 56
< 480
< 169 MEAN
Table C-V.1 CONCENTRATIONS OF IRON-55, NICKEL-63 AND GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/KG DRY+/- 2 SIGMA COLLECTION SITE PERIOD Fe-55 Ni-63 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 BD-10 05/17/23
< 1957
< 250
< 112
< 79
< 166
< 132
< 230
< 111
< 212
< 125
< 128
< 510
< 173 10/28/23
< 1878
< 183
< 114
< 103
< 183
< 133
< 269
< 106
< 192
< 124
< 124
< 364
< 153 MEAN BD-25 05/17/23
< 641
< 151
< 101
< 88
< 214
< 88
< 212
< 114
< 185
< 118
< 115
< 508
< 102 10/28/23
< 1762
< 218
< 58
< 55
< 134
< 74
< 148
< 68
< 109
< 60
< 57
< 216
< 86 MEAN BD-57 05/17/23
< 864
< 214
< 63
< 69
< 162
< 76
< 182
< 76
< 114
< 87
< 75
< 283
< 127 10/28/23
< 1874
< 220
< 70
< 59
< 145
< 82
< 154
< 77
< 113
< 98
< 79
< 286
< 106
(")
MEAN I
~
I\\)
Table C-Vl.1 COLLECTION PERIOD 12/29/22 - 01/05/23 01/05/23 - 01/12/23 01/12/23 - 01/19/23 01/19/23 - 01/26/23 01 /26/23 - 02/02/23 02/02/23 - 02/09/23 02/09/23 - 02/16/23 02/16/23 - 02/23/23 02/23/23 - 03/02/23 03/02/23 - 03/09/23 03/09/23 - 03/16/23 03/16/23 - 03/23/23 03/23/23 - 03/30/23 03/30/23 - 04/06/23 04/06/23 - 04/ 12/23 04/12/23 - 04/20/23 04/20/23 - 04/28/23 04/28/23 - 05/05/23 05/05/23 - 05/11 /23 05/11/23 - 05/18/23 05/18/23 - 05/25/23 05/25/23 - 06/01/23 06/01/23 - 06/08/23 06/08/23 - 06/15/23 06/15/23 - 06/22/23 06/22/23 - 06/29/23 06/29/23 - 07/06/23 07/06/23 - 07/13/23 07 /13/23 - 07 /20/23 07/20/23 07/27/23 07/27/23 08/03/23 08/03/23 08/10/23 08/10/23 - 08/17/23 08/17/23 08/24/23 08/24/23 08/31 /23 08/31/23 - 09/07/23 09/07/23 - 09/14/23 09/14/23 - 09/21/23 09/21 /23 - 09/28/23 09/28/23 - 10/04/23 10/04/23 - 10/12/23 10/12/23 - 10/19/23 10/19/23 10/26/23 10/26/23 11 /02/23 11 /02/23 11 /09/23 11/09/23 - 11/16/23 11 /16/23 11 /22/23 11 /22/23 11 /30/23 11 /30/23 12/07 /23 12/07/23 12/14/23 12/14/23 - 12/21/23 12/21/23 12/28/23 MEAN +/- 2 STD DEV CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 BD-06 32 +/- 5 33 +/- 5 12 +/- 4 17 +/- 4 23 +/- 5 26 +/- 5 16 +/- 4 18 +/- 4 17 +/- 4 21 +/- 4 12 +/- 4 18 +/- 4 25 +/- 5 20 +/- 4 24 +/- 5 17 +/- 4 14 +/- 3 7 +/- 3 18 +/- 4 22 +/- 4 18 +/- 4 16 +/- 4 20 +/- 4 15 +/- 4 19 +/- 4 19 +/- 5 21 +/- 4 20 +/- 4 17 +/- 4 22 +/- 4 17 +/- 4 18 +/- 4 22 +/- 4 26 +/- 5 17 +/- 4 18 +/- 4 12 +/- 4 23 +/- 5 25 +/- 5 26 +/- 5 18 +/- 4 22 +/- 4 21 +/- 5 20 +/- 4 34 +/- 5 24 +/- 5 13 +/- 4 23 +/- 4 21 +/- 4 19 +/- 4 26 +/- 5 21 +/- 4 20 +/- 11 RES UL TS IN UNITS OF E-3 PCI/CU METER+/- 2 SIGMA GROUP I - NEAR FIELD BD-19 40 +/- 6 33 +/- 5 13 +/- 4 16 +/- 4 23 +/- 5 26 +/- 5 18 +/- 4 10 +/- 4 17 +/- 4 19 +/- 4 5 +/- 3 24 +/- 5 22 +/- 4 15 +/- 4 30 +/- 6 16 +/- 4 13 +/- 3 7 +/- 3 17 +/- 4 20 +/- 4 13 +/- 4 17 +/- 4 22 +/- 4 12 +/- 4 16 +/- 4 13 +/- 4 17 +/- 4 17 +/- 4 18 +/- 4 23 +/- 4 23 +/- 5 19 +/- 4 18 +/- 4 26 +/- 5 16 +/- 4 15 +/- 4 17 +/- 4 23 +/- 5 31 +/- 5 33 +/- 5 16 +/- 4 22 +/- 4 25 +/- 5 21 +/- 4 30 +/- 5 24 +/- 4 11 +/- 4 20 +/- 4 15 +/- 4 19 +/- 4 21 +/- 4 26 +/- 5 20 +/- 13 BD-20 30 +/- 5 35 +/- 5 16 +/- 4 15 +/- 4 24 +/- 5 21 +/- 4 16 +/- 4 14 +/- 4 16 +/- 4 15 +/- 4 8 +/- 4 15 +/- 4 24 +/- 5 19 +/- 4 27 +/- 6 16 +/- 4 12 +/- 3 7 +/- 4 19 +/- 5 19 +/- 4 16 +/- 4 15 +/- 5 21 +/- 4 13 +/- 4 16 +/- 4 20 +/- 5 21 +/- 4 17 +/- 4 18 +/- 4 24 +/- 5 17 +/- 4 15 +/- 4 19 +/- 4 25 +/- 5 15 +/- 4 15 +/- 4 11 +/- 4 21 +/- 5 23 +/- 5 33 +/- 6 18 +/- 4 20 +/- 4 22 +/- 5 19 +/- 4 35 +/- 5 25 +/- 5 12 +/- 4 25 +/- 4 17 +/- 4 19 +/- 4 24 +/- 5 26 +/- 5 19 +/- 12 BD-21 31 +/- 5 27 +/- 5 13 +/- 4 18 +/- 4 23 +/- 5 28 +/- 5 14 +/- 4 12 +/- 4 13 +/- 4 16 +/- 4 5 +/- 3 21 +/- 5 27 +/- 5 20 +/- 4 28 +/- 6 18 +/- 4 15 +/- 3 9 +/- 4 15 +/- 4 21 +/- 4 17 +/- 4 17 +/- 5 21 +/- 4 8 +/- 4 18 +/- 4 23 +/- 5 22 +/- 4 20 +/- 4 18 +/- 4 26 +/- 5 18 +/- 4 21 +/- 5 19 +/- 4 31 +/- 5 17 +/- 4 16 +/- 5 17 +/- 4 22 +/- 5 30 +/- 5 37 +/- 6 18 +/- 4 21 +/- 5 22 +/- 5 19 +/- 4 36 +/- 5 20 +/- 4 11 +/- 4 24 +/- 5 20 +/- 4 18 +/- 4 27 +/- 5 26 +/- 5 20 +/- 13 GROUP II - FAR FIELD BD-02 34 +/- 5 29 +/- 5 (1) 16 +/- 4 27 +/- 5 17 +/- 4 15 +/- 4 15 +/- 4 17 +/- 4 16 +/- 4 16 +/- 4 22 +/- 5 23 +/- 5 22 +/- 5 26 +/- 6 20 +/- 4 14 +/- 3 7 +/- 4 26 +/- 5 19 +/- 4 16 +/- 4 14 +/- 4 21 +/- 4 14 +/- 4 14 +/- 4 20 +/- 5 18 +/- 4 18 +/- 4 15 +/- 4 25 +/- 5 17 +/- 4 21 +/- 4 18 +/- 4 26 +/- 5 20 +/- 5 19 +/- 5 11 +/- 4 24 +/- 5 24 +/- 5 35 +/- 6 18 +/- 4 19 +/- 4 19 +/- 5 16 +/- 4 35 +/- 5 24 +/- 5 15 +/- 5 18 +/- 4 22 +/- 5 19 +/- 4 23 +/- 5 26 +/- 5 20 +/- 12 BD-04 30 +/- 5 34 +/- 5 13 +/- 4 20 +/- 4 23 +/- 5 28 +/- 5 20 +/- 4 10 +/- 4 15 +/- 4 21 +/- 4 13 +/- 4 20 +/- 5 20 +/- 4 21 +/- 4 29 +/- 6 15 +/- 4 14 +/- 3 11 +/- 4 18 +/- 5 21 +/- 4 18 +/- 4 14 +/- 4 23 +/- 4 14 +/- 4 16 +/- 4 20 +/- 5 21 +/- 4 20 +/- 4 18 +/- 4 26 +/- 5 20 +/- 5 23 +/- 5 18 +/- 4 25 +/- 5 20 +/- 4 17 +/- 5 20 +/- 4 29 +/- 5 30 +/- 5 36 +/- 6 22 +/- 4 23 +/- 5 24 +/- 5 19 +/- 4 35 +/- 5 25 +/- 5 10 +/- 4 22 +/- 4 18 +/- 4 24 +/- 5 25 +/- 5 20 +/- 5 21 +/- 12 BD-05 32 +/- 5 30 +/- 5 15 +/- 4 18 +/- 4 26 +/- 5 18 +/- 4 19 +/- 4 12 +/- 4 13 +/- 4 7 +/- 3
< 5 20 +/- 4 24 +/- 4 18 +/- 4 22 +/- 5 16 +/- 4 11 +/- 3 8 +/- 4 16 +/- 4 16 +/- 4 19 +/- 4 15 +/- 4 21 +/- 4 14 +/- 4 17 +/- 4 18 +/- 5 19 +/- 4 16 +/- 4 19 +/- 4 22 +/- 4 18 +/- 5 17 +/- 4 20 +/- 4 29 +/- 5 16 +/- 4 20 +/- 5 15 +/- 4 22 +/- 5 25 +/- 5 31 +/- 5 22 +/- 4 34 +/- 5 24 +/- 5 21 +/- 4 32 +/- 5 22 +/- 4 15 +/- 4 23 +/- 4 19 +/- 4 18 +/- 4 24 +/- 5 23 +/- 5 20 +/- 12 GROUP Ill -
CONTROL BD-03 31 +/- 5 28 +/- 5 11 +/- 4 13 +/- 4 26 +/- 5 25 +/- 4 16 +/- 4 13 +/- 4 10 +/- 4 18 +/- 4 13 +/- 4 19 +/- 4 21 +/- 4 17 +/- 4 26 +/- 5 14 +/- 4 12 +/- 3 5 +/- 3 18 +/- 4 17 +/- 4 20 +/- 4 16 +/- 5 21 +/- 4 12 +/- 4 14 +/- 4 18 +/- 4 17 +/- 4 16 +/- 4 13 +/- 4 25 +/- 5 15 +/- 4 19 +/- 4 18 +/- 4 28 +/- 5 18 +/- 4 17 +/- 5 13 +/- 4 19 +/- 5 27 +/- 5 36 +/- 6 18 +/- 4 21 +/- 5 23 +/- 5 18 +/- 4 32 +/- 5 24 +/- 5 10 +/- 4 48 +/- 9 23 +/- 5 18 +/- 4 18 +/- 4 20 +/- 4 19 +/- 15 THE MEAN AND 1WO STANDARD DEV/A TION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS FOR EXPLANATION C-13
Table C-Vl.2 MONTHLY AND YEARLY VALUES OF GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF E-3 PCI/CU METER+/- 2 SIGMA GROUP I - NEAR FIELD LOCATIONS GROUP II - FAR FIELD LOCATIONS GROUP Ill - CONTROL LOCATIONS COLLECTION MIN MAX MEAN COLLECTION MIN MAX MEAN COLLECTION MIN MAX MEAN PERIOD
+/- 2SD PERIOD
+/- 2SD PERIOD
+/-2SD 12/29/22 - 02/02/23 12 40 24 +/- 17 12/29/22 - 02/02/23 13 34 25 +/- 14 12/29/22 - 02/02/23 11 31 22 +/- 18 02/02/23 - 03/02/23 10 28 18 +/- 10 02/02/23 - 03/02/23 10 28 16 +/- 9 02/02/23 - 03/02/23 10 25 16 +/- 13 03/02/23 - 03/30/23 5
27 17 +/- 14 03/02/23 - 03/30/23 7
24 18 +/- 10 03/02/23 - 03/30/23 13 21 18 +/- 7 03/30/23 - 04/28/23 12 30 19 +/- 11 03/30/23 - 04/28/23 11 29 19 +/- 10 03/30/23 - 04/28/23 12 26 17 +/- 12 04/28/23 - 06/01 /23 7
22 15 +/- 9 04/28/23 - 06/01/23 7
26 16 +/- 10 04/28/23 - 06/01/23 5
20 15 +/- 12 06/01/23 - 06/29/23 8
23 17 +/- 8 06/01/23 - 06/29/23 14 23 18 +/- 7 06/01/23 - 06/29/23 12 21 16 +/- 8 06/29/23 - 08/03/23 17 26 20 +/- 6 06/29/23 - 08/03/23 15 26 19 +/- 6 06/29/23 - 08/03/23 13 25 17 +/- 9 08/03/23 - 08/31 /23 15 31 20 +/- 9 08/03/23 - 08/31/23 16 29 21 +/- 8 08/03/23 - 08/31/23 18 28 21 +/- 10 08/31/23 - 09/28/23 11 31 20 +/- 12 08/31/23 - 09/28/23 11 30 21 +/- 11 08/31/23 - 09/28/23 13 27 19 +/- 12 09/28/23 - 11/02/23 16 37 23 +/- 11 09/28/23 - 11/02/23 16 36 24 +/- 13 09/28/23 - 11 /02/23 18 36 23 +/- 15 11 /02/23 - 11 /30/23 11 36 23 +/- 17 11/02/23 - 11/30/23 10 35 23 +/- 16 11/02/23 - 11/30/23 10 48 29 +/- 32
()
11 /30/23 - 12/28/23 15 27 22 +/- 7 11/30/23 - 12/28/23 18 26 22 +/- 6 11/30/23 - 12/28/23 18 23 20 +/- 5 I
~
~
12/29/22 - 12/28/23 5
40 20 +/- 12 12/29/22 - 12/28/23 7
36 20 +/- 12 12/29/22 - 12/28/23 5
48 19 +/- 15 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES
Table C-Vl.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RES UL TS IN UNITS OF E-3 PCI/CU METER +/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 BD-02 12/29/22 - 03/30/23
< 3
< 3
< 8
< 3
< 6
< 3
< 6
< 3
< 3
< 40
< 16 03/30/23 - 06/29/23
< 2
< 3
< 6
< 3
< 9
< 2
< 5
< 2
< 2
< 15
< 10 06/29/23 - 09/28/23
< 3
< 3
< 9
< 3
< 7
< 3
< 5
< 3
< 3
< 27
< 8 09/28/23 - 12/28/23
< 3
< 2
< 7
< 3
< 6
< 2
< 4
< 2
< 2
< 19
< 5 MEAN BD-03 12/29/22 - 03/30/23
< 2
< 2
< 5
< 2
< 5
< 3
< 4
< 2
< 2
< 30
< 16 03/30/23 - 06/29/23
< 3
< 3
< 6
< 2
< 8
< 3
< 5
< 3
< 3
< 25
< 9 06/29/23 - 09/28/23
< 2
<2
< 4
< 2
< 5
< 2
< 5
< 2
< 1
< 18
< 8 09/28/23 - 12/28/23
< 3
< 3
< 6
< 3
< 6
< 3
< 5
< 2
< 3
< 22
< 10 MEAN 0
I.....
01 BD-04 12/29/22 - 03/30/23
< 2
< 3
< 8
< 3
< 4
< 3
< 7
< 2
< 3
< 40
< 6 03/30/23 - 06/29/23
< 3
< 3
< 7
< 4
< 10
< 4
< 5
< 3
< 3
< 21
< 11 06/29/23 - 09/28/23
< 3
< 3
< 7
< 2
< 7
< 3
< 5
< 3
< 2
< 23
< 9 09/28/23 - 12/28/23
< 2
< 3
< 6
< 3
< 7
< 2
<4
< 2
< 2
< 23
< 7 MEAN BD-05 12/29/22 - 03/30/23
< 2
< 2
< 5
< 2
<4
< 2
< 4
< 2
< 1
< 22
< 9 03/30/23 - 06/29/23
< 3
< 3
< 6
< 3
< 5
< 3
< 5
< 3
< 3
< 24
< 8 06/29/23 09/28/23
< 3
<4
< 11
< 4
< 10
<4
< 6
< 4
< 4
< 35
< 11 09/28/23 12/28/23
< 2
< 2
< 5
< 2
< 5
< 2
< 4
< 2
< 1
< 13
< 6 MEAN BD-06 12/29/22 - 03/30/23
< 3
< 4
< 8
< 3
< 5
< 4
< 6
< 3
< 3
< 47
< 18 03/30/23 - 06/29/23
< 3
< 3
< 8
< 4
< 8
< 4
< 8
< 3
< 4
< 30
< 13 06/29/23 - 09/28/23
< 3
< 3
< 6
< 3
< 6
< 3
< 4
<2
<2
< 19
< 11 09/28/23 - 12/28/23
< 3
< 3
< 7
< 2
< 6
< 3
< 3
< 2
< 2
< 19
< 9 MEAN
Table C-Vl.3 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF E-3 PCI/CU METER+/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 Cs-134 Cs-137 Ba-140 La-140 BD-19 12/29/22 - 03/30/23
< 2
< 3
< 7
< 2
< 5
< 2
< 5
< 2
< 3
< 33
< 18 03/30/23 - 06/29/23
< 2
< 3
< 7
< 3
< 6
< 3
< 5
< 2
< 2
< 18
< 9 06/29/23 - 09/28/23
<2
< 2
< 4
< 2
< 5
< 2
< 2
< 2
<2
< 18
< 7 09/28/23 - 12/28/23
< 3
< 3
< 5
< 3
< 6
< 3
< 6
< 2
<2
< 24
< 7 MEAN BD-20 12/29/22 - 03/30/23
<2
< 2
< 6
< 3
< 5
< 3
< 4
< 3
< 2
< 28
< 12 03/30/23 - 06/29/23
< 3
< 3
< 7
< 2
< 7
< 3
< 4
< 3
< 3
< 22
< 9 06/29/23 - 09/28/23
< 3
< 5
< 9
< 3
< 8
< 4
< 7
< 4
< 3
< 33
< 16 09/28/23 - 12/28/23
< 3
< 3
< 7
< 3
< 7
< 2
< 3
< 2
< 1
< 21
< 8 MEAN C')
I
~
Cl'>
BD-21 12/29/22 - 03/30/23
< 2
< 2
< 8
< 2
< 6
< 2
< 2
< 2
< 2
< 28
< 14 03/30/23 - 06/29/23
< 4
< 3
< 8
< 4
< 8
< 4
< 6
< 4
< 4
< 28
< 13 06/29/23 - 09/28/23
< 3
< 3
< 6
< 1
< 8
< 2
< 3
< 2
< 2
< 18
< 10 09/28/23 - 12/28/23
<3
< 2
< 7
< 4
< 7
< 3
< 7
< 3
<2
< 25
< 8 MEAN
Table C-Vll.1 CONCENTRATIONS OF I-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF E-3 PCI/CU METER+/- 2 SIGMA COLLECTION GROUP I - NEAR FIELD GROUP II - FAR FIELD GROUP 111-CONTROL PERIOD BD-06 BD-19 BD-20 BD-21 BD-02 BD-04 BD-05 BD-03 12/29/22 - 01/05/23
< 48
< 61
< 49
< 46
< 36
< 37
< 34
< 33 01/05/23 - 01/12/23
< 36
< 36
< 37
< 35
< 32
< 32
< 16
< 30 01/12/23 - 01/19/23
< 40
< 40
< 40
< 38 (1)
< 50
< 50
< 48 01/19/23 - 01/26/23
< 46
< 45
< 45
< 44
< 37
< 34
< 33
< 32 01/26/23 02/02/23
< 58
< 59
< 60
< 24
< 41
< 40
< 41
< 40 02/02/23 - 02/09/23
< 52
< 50
< 49
< 50
< 57
< 56
< 53
< 22 02/09/23 - 02/16/23
< 37
< 37
< 37
< 36
< 41
< 41
< 38
< 38 02/16/23 02/23/23
< 34
< 34
< 35
< 33
< 45
< 45
< 43
< 43 02/23/23 03/02/23
< 42
< 42
< 43
< 41
< 40
< 41
< 41
< 41 03/02/23 - 03/09/23
< 29
< 28
< 30
< 28
< 32
< 32
< 31
< 28 03/09/23 - 03/16/23
< 36
< 35
< 35
< 36
< 38
< 39
< 38
< 37 03/16/23 - 03/23/23
< 32
< 15
< 32
< 32
< 44
< 44
< 43
< 42 03/23/23 - 03/30/23
< 49
< 47
< 50
< 50
< 51
< 49
< 48
< 48 03/30/23 04/06/23
< 45
< 18
< 46
< 45
< 58
< 56
< 56
< 54 04/06/23 04/12/23
< 59
< 57
< 61
< 60
< 41
< 42
< 16
< 37 04/12/23 - 04/20/23
< 32
< 30
< 32
< 32
< 24
< 25
< 24
< 24 04/20/23 - 04/28/23
< 32
< 15
< 32
< 33
< 46
< 46
< 45
< 42 04/28/23 - 05/05/23
< 54
< 52
< 55
< 56
< 51
< 45
< 46
< 46 05/05/23 - 05/11/23
< 57
< 55
< 59
< 57
< 47
< 48
< 44
< 44 05/11/23 - 05/18/23
< 55
< 52
< 53
< 54
< 63
< 61
< 61
< 59 05/18/23 05/25/23
< 51
< 48
< 51
< 51
< 45
< 48
< 47
< 45 05/25/23 06/01/23
< 49
< 49
< 22
< 51
< 45
< 43
< 45
< 45 06/01/23 06/08/23
< 44
< 41
< 43
< 44
< 35
< 36
< 33
< 33 06/08/23 - 06/15/23
< 48
< 19
< 48
< 48
< 51
< 53
< 52
< 51 06/15/23 - 06/22/23
< 32
< 43
< 19
< 42
< 22
< 32
< 32
< 31 06/22/23 - 06/29/23
< 65
< 60
< 64
< 65
< 52
< 52
< 52
< 51 06/29/23 - 07/06/23
< 48
< 50
< 51
< 48
< 47
< 48
< 46
< 43 07/06/23 - 07/13/23
< 48
< 47
< 50
< 50
< 40
< 41
< 39
< 37 07/13/23 07/20/23
< 22
< 55
< 58
< 57
< 38
< 38
< 36
< 35 07/20/23 07/27/23
< 51
< 54
< 58
< 54
< 38
< 37
< 35
< 35 07/27/23 08/03/23
< 44
< 43
< 45
< 44
< 37
< 36
< 38
< 36 08/03/23 08/10/23
< 41
< 38
< 40
< 41
< 40
< 42
< 40
< 38 08/10/23 - 08/17/23
< 33
< 32
< 34
< 32
< 35
< 35
< 34
< 33 08/17/23 - 08/24/23
< 40
< 40
< 42
< 41
< 34
< 34
< 33
< 35 08/24/23 - 08/31/23
< 41
< 42
< 43
< 41
< 53
< 51
< 48
< 50 08/31/23 - 09/07/23
< 39
< 38
< 40
< 41
< 33
< 32
< 33
< 34 09/07/23 09/14/23
< 24
< 23
< 24
< 24
< 41
< 43
< 38
< 40 09/14/23 - 09/21/23
< 42
< 40
< 42
< 43
< 38
< 38
< 38
< 39 09/21/23 09/28/23
< 34
< 33
< 35
< 35
< 56
< 53
< 54
< 56 09/28/23 - 10/04/23
< 63
< 63
< 67
< 68
< 58
< 61
< 56
< 58 10/04/23 - 10/12/23
< 34
< 33
< 34
< 35
< 37
< 36
< 36
< 38 10/12/23 - 10/19/23
< 53
< 51
< 55
< 55
< 50
< 49
< 47
< 50 10/19/23 - 10/26/23
< 26
< 26
< 26
< 27
< 22
< 23
< 22
< 23 10/26/23 11/02/23
< 50
< 50
< 50
< 53
< 43
< 41
< 40
< 43 11/02/23 - 11/09/23
< 32
< 31
< 32
< 33
< 40
< 40
< 37
< 40 11/09/23 11/16/23
< 45
< 44
< 46
< 47
< 58
< 59
< 55
< 58 11/16/23 11/22/23
< 43
< 41
< 43
< 45
< 40
< 39
< 37
< 40 11/22/23 11/30/23
< 27
< 27
< 28
< 29
< 30
< 32
< 30
< 30 11/30/23 12/07/23
< 48
< 47
< 49
< 49
< 53
< 51
< 50
< 54 12/07/23 12/14/23
< 31
< 30
< 31
< 31
< 30
< 31
< 28
< 30 12/14/23 - 12/21/23
< 39
< 38
< 40
< 39
< 43
< 42
< 40
< 42 12/21/23 12/28/23
< 23
< 23
< 23
< 23
< 35
< 34
< 33
< 33 MEAN (1) SEE PROGRAM EXCEPTIONS FOR EXPLANA T/ON C-17
Table C-Vlll.1 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/KG WET +/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BO-CONTROL Chard 07/13/23
< 21
< 21
< 50
< 30
< 51
< 26
< 33
< 30
< 26
< 19
< 76
< 29 Mustard Greens 07/13/23
< 34
< 39
< 94
< 45
< 101
< 33
< 63
< 53
< 37
< 39
< 169
< 30 Collard Greens 07/13/23
< 28
< 24
< 65
< 33
< 70
< 29
< 36
< 37
< 27
< 22
< 116
< 39 Radish 07/27/23
< 24
< 25
< 52
< 30
< 55
< 27
< 40
< 45
< 27
< 26
< 107
< 50 Radish Leaves 07/27/23
< 18
< 17
< 37
< 15
< 33
< 16
< 27
< 24
< 17
< 17
< 71
< 26 Radish 07/27/23
< 24
< 25
< 52
< 30
< 55
< 27
< 40
< 45
< 27
< 26
< 107
< 50 Radish Leaves 07/27/23
< 18
< 17
< 37
< 15
< 33
< 16
< 27
< 24
< 17
< 17
< 71
< 26 Radish 08/10/23
< 29
< 23
< 59
< 40
< 67
< 28
< 50
< 45
< 30
< 31
< 136
< 34 Radish Leaves 08/10/23
< 26
< 23
< 51
< 33
< 62
< 27
< 41
< 36
< 25
< 27
< 108
< 40 Radish 08/17/23
< 26
< 32
< 67
< 37
< 70
< 31
< 47
< 52
< 33
< 31
< 157
< 41 Mustard Greens 08/17/23
< 32
< 22
< 74
< 32
< 90
< 29
< 57
< 50
< 41
< 38
< 141
< 42 Kale 08/17/23
< 39
< 31
< 72
< 34
< 84
< 36
< 67
< 48
< 37
< 35
< 143
< 48 Collard Greens 08/17/23
< 31
< 38
< 80
< 39
< 77
< 33
< 52
< 48
< 37
< 37
< 147
< 46 Radish 08/24/23
< 32
< 35
< 76
< 40
< 62
< 39
< 58
< 49
< 37
< 41
< 155
< 43 Radish Leaves 08/24/23
< 28
< 27
< 67
< 29
< 61
< 23
< 39
< 29
< 32
< 27
< 101
< 35 Radish 09/07/23
< 37
< 37
< 69
< 38
< 82
< 38
< 70
< 51
< 42
< 39
< 161
< 54
(')
Radish Leaves 09/07/23
< 30
< 24
< 80
< 35
< 75
< 34
< 69
< 46
< 43
< 27
< 148
< 21 I
Radish 09/07/23
< 37
< 37
< 69
< 38
< 82
< 38
< 70
< 51
< 42
< 39
< 161
< 54
~
- 0)
Radish Leaves 09/07/23
< 30
< 24
< 80
< 35
< 75
< 34
< 69
< 46
< 43
< 27
< 148
< 21 Radish 09/21/23
< 38
< 33
< 79
< 38
< 67
< 30
< 57
< 48
< 37
< 38
< 116
< 53 Radish Leaves 09/21/23
< 43
< 30
< 72
< 42
< 101
< 38
< 55
< 48
< 44
< 31
< 135
< 42 Radish 10/04/23
< 25
< 28
< 53
< 31
< 57
< 27
< 44
< 47
< 28
< 26
< 113
< 40 Cabbage 10/04/23
< 28
< 32
< 77
< 35
< 63
< 29
< 46
< 43
< 39
< 27
< 133
< 44 Radish 10/19/23
< 39
< 31
< 50
< 39
< 75
< 35
< 64
< 48
< 39
< 39
< 137
< 38 Cabbage 10/19/23
< 33
< 35
< 66
< 37
< 79
< 44
< 58
< 44
< 37
< 29
< 129
< 47 MEAN BO-QUAD 1 Collard Greens 07/27/23
< 27
< 23
< 73
< 33
< 49
< 31
< 55
< 35
< 33
< 24
< 129
< 41 Chard 07/27/23
< 27
< 29
< 62
< 31
< 62
< 29
< 55
< 43
< 31
< 33
< 125
< 24 Radish 07/27/23
< 21
< 20
< 50
< 27
< 45
< 17
< 37
< 23
< 15
< 19
< 76
< 26 Collard Greens 08/17/23
< 28
< 23
< 57
< 30
< 55
< 26
< 37
< 48
< 26
< 26
< 129
< 37 Mustard Greens 08/17/23
< 27
< 31
< 75
< 37
< 62
< 34
< 60
< 45
< 43
< 31
< 162
< 40 Radish 08/17/23
< 29
< 25
< 63
< 32
< 66
< 28
< 55
< 50
< 31
< 30
< 127
< 36 Collard Greens 09/07/23
< 31
< 32
< 48
< 42
< 63
< 35
< 55
< 50
< 33
< 34
< 161
< 34 Chard 09/07/23
< 32
< 33
< 77
< 33
< 59
< 31
< 56
< 49
< 40
< 34
< 153
< 37 Radish 09/07/23
< 24
< 24
< 52
< 27
< 51
< 26
< 38
< 26
< 23
< 26
< 98
< 34 Collard Greens 10/12/23
< 31
< 35
< 65
< 41
< 83
< 34
< 64
< 40
< 38
< 33
< 129
< 44 Chard 10/12/23
< 28
< 30
< 53
< 33
< 53
< 30
< 48
< 35
< 30
< 35
< 104
< 39 Radish 10/12/23
< 28
< 28
< 58
< 32
< 55
< 27
< 41
< 36
< 28
< 30
< 95
< 28 MEAN
Table C-Vlll.1 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/KG WET+/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BO-QUAD 2 Cabbage 07127123
< 12
< 13
< 32
< 12
< 34
< 14
< 21
< 21
< 14
< 12
< 64
< 16 Collard Greens 07127123
< 30
< 22
< 75
< 32
< 60
< 21
< 50
< 36
< 27
< 29
< 113
< 40 Red Beets 07127123
< 14
< 13
< 32
< 16
< 32
< 14
< 22
< 17
< 15
< 12
< 62
< 16 Onions 07127123
< 26
< 20
< 45
< 23
< 55
< 21
< 38
< 39
< 26
< 25
< 100
< 29 Cabbage 08117123
< 32
< 30
< 79
< 33
< 97
< 42
< 54
< 45
< 39
< 34
< 163
< 36 Collard Greens 08117123
< 34
< 30
< 73
< 34
< 66
< 30
< 67
< 50
< 29
< 32
< 168
< 44 Kale 08117123
< 26
< 29
< 61
< 29
< 61
< 28
< 54
< 45
< 26
< 29
< 135
< 34 Potato 08124123
< 20
< 21
< 49
< 20
< 54
< 23
< 35
< 32
< 25
< 20
< 87
< 16 Red Beets 09107123
< 15
< 17
< 50
< 31
< 47
< 23
< 44
< 23
< 26
< 20
< 101
< 30 Collard Greens 09107123
< 27
< 32
< 93
< 33
< 40
< 34
< 41
< 31
< 43
< 37
< 115
< 36 Kale 09107123
< 31
< 29
< 60
< 36
< 70
< 40
< 62
< 49
< 33
< 32
< 154
< 32 Potato 09107123
< 39
< 43
< 99
< 31
< 97
< 40
< 57
< 50
< 44
< 31
< 158
< 36 Potato 10112123
< 16
< 12
< 31
< 18
< 39
< 16
< 27
< 20
< 17
< 15
< 61
< 15 Collard Greens 10112123
< 29
< 26
< 54
< 37
< 59
< 30
< 43
< 40
< 29
< 22
< 118
< 33 Cabbage 10112123
< 27
< 27
< 53
< 32
< 54
< 30
< 52
< 40
< 31
< 29
< 129
< 38 MEAN BO-QUAD 3 C')
Onions 07127123
< 21
< 23
< 65
< 39
< 46
< 19
< 41
< 29
< 25
< 22
< 104
< 32 I
Collard Greens 07127123
< 27
< 23
< 52
< 29
< 54
< 24
< 46
< 39
< 27
< 23
< 114
< 40 (0
Red Beets 07127123
< 34
< 44
< 72
< 41
< 64
< 28
< 69
< 41
< 37
< 33
< 150
< 57 Radish 08117123
< 12
< 11
< 25
< 14
< 29
< 13
< 21
< 18
< 13
< 13
< 56
< 18 Radish Leaves 08117123
< 14
< 15
< 33
< 18
< 33
< 15
< 27
< 21
< 17
< 15
< 63
< 20 Carrot 08117123
< 14
< 14
< 31
< 15
< 32
< 14
< 25
< 21
< 15
< 15
< 60
< 18 Red Beets 09107123
< 39
< 35
< 71
< 46
< 76
< 33
< 64
< 47
< 33
< 38
< 139
< 64 Collard Greens 09107123
< 21
< 23
< 46
< 27
< 55
< 21
< 32
< 28
< 26
< 21
< 83
< 28 Carrot 09107123
< 29
< 27
< 54
< 26
< 60
< 30
< 48
< 46
< 32
< 32
< 129
< 35 Beet 09107123
< 29
< 25
< 53
< 34
< 63
< 26
< 52
< 42
< 33
< 27
< 120
< 34 Red Beets 10112123
< 12
< 13
< 25
< 13
< 28
< 13
< 23
< 16
< 15
< 13
< 55
< 17 Collard Greens 10112123
< 11
< 10
< 25
< 14
< 27
< 12
< 18
< 13
< 12
< 11
< 46
< 14 Carrot 10112123
< 24
< 24
< 47
< 27
< 46
< 25
< 41
< 33
< 27
< 25
< 98
< 35 Beet 10112123
< 12
< 14
< 29
< 17
< 32
< 15
< 26
< 20
< 15
< 15
< 60
< 16 MEAN BO-QUAD 4 Mustard Greens 07127123
< 29
< 29
< 57
< 41
< 58
< 29
< 57
< 41
< 32
< 34
< 117
< 49 Radish 07127123
< 29
< 29
< 62
< 32
< 78
< 35
< 56
< 41
< 31
< 36
< 115
< 19 Mustard Greens 08117123
< 15
< 14
< 33
< 17
< 31
< 15
< 26
< 22
< 17
< 15
< 68
< 21 Collard Greens 08117123
< 17
< 16
< 35
< 18
< 37
< 16
< 24
< 23
< 17
< 16
< 71
< 23 Radish 08117123
< 9
< 8
< 19
< 9
< 21
< 10
< 16
< 15
< 10
< 9
< 40
< 12 Mustard Greens 09107123
< 40
< 44
< 88
< 35
< 81
< 27
< 67
< 48
< 36
< 39
< 148
< 50 Collard Greens 09107123
< 43
< 36
< 80
< 55
< 79
< 40
< 80
< 48
< 40
< 41
< 182
< 55 Radish 09107123
< 25
< 26
< 54
< 31
< 64
< 24
< 39
< 34
< 35
< 31
< 123
< 41 Mustard Greens 10112123
< 40
< 44
< 97
< 53
< 69
< 38
< 72
< 48
< 51
< 31
< 156
< 42 Beet 10112123
< 27
< 25
< 54
< 26
< 51
< 32
< 50
< 32
< 31
< 30
< 113
< 25 Radish 10112123
< 23
< 18
< 46
< 17
< 53
< 22
< 36
< 26
< 26
< 25
< 95
< 30 MEAN
Table C-Vlll.1 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/KG WET+/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BWD-G1 Tunip 07113123
< 25
< 25
< 43
< 27
< 54
< 28
< 57
< 50
< 26
< 29
< 136
< 35 Kohlrabi 07113123
< 37
< 32
< 76
< 38
< 81
< 38
< 62
< 48
< 36
< 40
< 149
< 47 Kale 07113123
< 32
< 26
< 55
< 36
< 58
< 35
< 55
< 49
< 29
< 36
< 150
< 43 Cabbage 07127123
< 20
< 24
< 45
< 24
< 51
< 24
< 43
< 30
< 25
< 27
< 99
< 28 Radish 07127123
< 21
< 25
< 46
< 23
< 50
< 22
< 35
< 29
< 27
< 22
< 81
< 40 Kohlrabi 07127123
< 17
< 18
< 39
< 20
< 47
< 20
< 40
< 28
< 20
< 20
< 89
< 26 Kale 08110123
< 35
< 33
< 61
< 32
< 62
< 31
< 55
< 47
< 36
< 33
< 134
< 34 Radish 08110123
< 16
< 19
< 45
< 20
< 40
< 18
< 29
< 25
< 21
< 21
< 84
< 26 Turnip 08110123
< 12
< 11
< 26
< 14
< 24
< 12
< 20
< 19
< 14
< 15
< 56
< 12 Kale 08124123
< 29
< 29
< 59
< 33
< 69
< 33
< 46
< 42
< 29
< 26
< 122
< 47 Radish 08124123
< 37
< 29
< 66
< 26
< 53
< 43
< 72
< 41
< 31
< 41
< 183
< 41 Cabbage 08124123
< 26
< 29
< 56
< 35
< 54
< 33
< 50
< 33
< 28
< 28
< 134
< 45 Kale 09107123
< 41
< 50
< 80
< 44
< 105
< 39
< 75
< 58
< 51
< 52
< 187
< 58 Turnip 09107123
< 32
< 29
< 78
< 26
< 60
< 37
< 59
< 34
< 31
< 32
< 132
< 46 Cabbage 09107123
< 20
< 15
< 33
< 25
< 43
< 18
< 38
< 28
< 21
< 23
< 78
< 34 C')
Kale 09121123
< 29
< 23
< 48
< 25
< 56
< 23
< 56
< 31
< 32
< 35
< 108
< 30 I I\\)
Turnip 09121123
< 21 0
< 19
< 47
< 19
< 49
< 22
< 34
< 31
< 22
< 24
< 84
< 24 Kohlrabi 09121123
< 26
< 29
< 50
< 34
< 62
< 32
< 47
< 43
< 26
< 27
< 119
< 46 Radish 09121123
< 25
< 26
< 52
< 28
< 44
< 26
< 44
< 34
< 27
< 31
< 125
< 39 Kale 10104123
< 38
< 35
< 71
< 32
< 75
< 35
< 45
< 50
< 40
< 38
< 178
< 57 Cabbage 10104123
< 31
< 33
< 92
< 33
< 93
< 37
< 69
< 37
< 36
< 40
< 162
< 49 Kohlrabi 10104123
< 25
< 21
< 52
< 30
< 66
< 28
< 50
< 46
< 33
< 34
< 122
< 17 Kale 10119123
< 32
< 31
< 56
< 36
< 56
< 39
< 42
< 38
< 30
< 36
< 121
< 42 Chard 10119123
< 23
< 23
< 43
< 28
< 55
< 28
< 39
< 37
< 29
< 25
< 104
< 37 Turnip 10119123
< 24
< 26
< 49
< 30
< 61
< 27
< 44
< 38
< 30
< 28
< 122
< 32 MEAN
Table C-Vlll.1 CONCENTRATIONS OF GAMMA EMITTERS IN VEGETATION SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/KG WET+/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 BWD-G2 Kale 07/13/23
< 21
< 25
< 43
< 31
< 50
< 25
< 41
< 38
< 25
< 23
< 101
< 41 Kohlrabi 07/13123
< 17
< 19
< 43
< 27
< 46
< 19
< 30
< 36
< 23
< 25
< 99
< 29 Cabbage 07/13123
< 27
< 37
< 54
< 25
< 57
< 30
< 54
< 37
< 29
< 24
< 142
< 24 Kale 07/27123
< 30
< 25
< 73
< 41
< 70
< 29
< 52
< 42
< 33
< 34
< 121
< 37 Turnip 07/27123
< 22
< 22
< 44
< 23
< 51
< 22
< 45
< 34
< 21
< 25
< 95
< 38 Radish 07/27/23
< 21
< 19
< 47
< 21
< 48
< 22
< 41
< 29
< 24
< 21
< 95
< 29 Cabbage 08/10/23
< 18
< 17
< 40
< 17
< 39
< 18
< 33
< 30
< 21
< 24
< 86
< 27 Kohlrabi 08110/23
< 13
< 15
< 28
< 15
< 35
< 16
< 22
< 23
< 15
< 15
< 65
< 16 Radish 08/10/23
< 29
< 28
< 55
< 19
< 77
< 36
< 64
< 49
< 29
< 37
< 155
< 52 Cabbage 08/24/23
< 25
< 15
< 52
< 28
< 39
< 26
< 44
< 27
< 34
< 31
< 113
< 41 Turnip 08/24/23
< 27
< 21
< 51
< 23
< 68
< 28
< 40
< 37
< 27
< 30
< 111
< 42 Chard 08/24/23
< 33
< 33
< 65
< 37
< 66
< 37
< 48
< 47
< 34
< 38
< 148
< 40 Collard Greens 09/07/23
< 39
< 31
< 55
< 38
< 69
< 39
< 55
< 50
< 51
< 41
< 133
< 35 Turnip 09/07/23
< 23
< 26
< 41
< 30
< 46
< 20
< 34
< 29
< 27
< 25
< 87
< 46 Chard 09/07/23
< 29
< 27
< 61
< 39
< 70
< 26
< 44
< 44
< 32
< 32
< 145
< 30
(')
Cabbage 09121 /23
< 34
< 31
< 61
< 31
< 70
< 26
< 57
< 42
< 29
< 32
< 143
< 34 I
I\\)
Turnip 09/21123
< 44
< 37
< 80
< 31
< 56
< 35
< 62
< 45
< 38
< 37
< 163
< 38 Chard 09/21/23
< 35
< 33
< 67
< 35
< 81
< 25
< 59
< 43
< 39
< 38
< 113
< 54 Chard 10/04/23
< 27
< 28
< 70
< 32
< 75
< 33
< 52
< 46
< 29
< 32
< 149
< 30 Turnip 10/04/23
< 21
< 30
< 62
< 23
< 71
< 34
< 47
< 39
< 28
< 31
< 101
< 36 Radish 10104/23
< 26
< 29
< 64
< 34
< 61
< 32
< 44
< 50
< 31
< 36
< 138
< 38 Kale 10/19/23
< 26
< 28
< 67
< 36
< 71
< 32
< 47
< 38
< 34
< 28
< 105
< 35 Turnip 10/19/23
< 13
< 18
< 36
< 19
< 37
< 16
< 31
< 27
< 19
< 21
< 67
< 21 Radish 10119/23
< 20
< 29
< 57
< 25
< 66
< 28
< 50
< 34
< 28
< 29
< 112
< 36 MEAN
n I
I\\J I\\J Table C-IX.1 2023 Control Ind - Far Ind - Inner Ind - Outer Ind-Near Other (ISFSI)
Monitoring Location BD-03 BD-02 BD-04 BD-05 BD-101 BD-102 BD-103 BD-104 BD-105 BD-106 BD-107 BD-108 BD-109 BD-110 BD-111a BD-112 BD-113a BD-114 BD-115 BD-116 BD-201 BD-202 BD-203 BD-204 BD-205 BD-206 BD-207 BD-208 BD-209 BD-210 BD-211 BD-212 BD-213 BD-214 BD-215 BD-216 BD-06 BD-19 BD-20 BD-21 BD-ISFSl-104-3 BD-ISFSl-104-4 BD-ISFSl-105-3 BD-ISFSl-105-4 BD-ISFSl-110-3 BD-ISFSl-110-4 Location BQ +
Quarterly MDDQ Baseline, BQ (mrem)
(mrem) 16.2 20.3 15.9 20.0 15.1 19.2 16.1 20.2 15.7 19.8 15.7 19.8 15.6 19.7 14.6 18.7 14.9 19.0 14.5 18.6 14.7 18.8 15.3 19.4 18.3 22.4 14.5 18.6 15.2 19.3 14.8 18.9 15.7 19.8 15.4 19.5 15.5 19.6 16.1 20.2 18.5 22.6 15.6 19.7 15.3 19.4 14.5 18.6 14.8 18.9 15.5 19.6 14.7 18.8 15.2 19.3 19.9 24.0 17.3 21.4 19.8 23.9 17.9 22.0 14.3 18.4 16.8 20.9 14.9 19.1 17.4 21.5 15.0 19.1 16.4 20.5 16.1 20.2 15.5 19.6 15.7 19.8 15.7 19.8 15.7 19.8 15.7 19.8 15.7 19.8 15.7 19.8 QUARTERLY OSLD RESULTS FOR BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF MREM/QUARTER + 2 STANDARD DEVIATIONS 2023 Normalized Net Dose, Quarterly Facility Dose, FQ Annual MQx (mrem/std. Qtr.)
(mrem)
- Baseline, 1 I 2
I 3
I 4
1 I
2 I
3 I
4 BA (mrem) 15.6 15.5 16.7 18.1 ND ND ND ND 64.9 15.6 18.8 15.6 16.1 ND ND ND ND 63.7 13.5 14.7 16.1 15.7 ND ND ND NA 60.4 14.6 16.0 13.4 17.8 ND ND ND ND 64.5 15.0 14.8 15.7 16.4 ND ND ND ND 62.9 13.8 13.9 14.4 15.5 ND ND ND ND 62.6 15.4 15.7 13.5 16.9 ND ND ND ND 62.4 13.9 13.7 13.5 14.2 ND ND ND ND 58.4 14.7 15.3 13.4 15.7 ND ND ND ND 59.5 14.4 14.2 14.6 15.5 ND ND ND ND 58.1 15.2 14.4 15.5 16.4 ND ND ND ND 58.9 12.4 16.0 14.7 15.9 ND ND ND ND 61.3 18.0 20.4 18.3 18.3 ND ND ND ND 73.2 14.1 13.5 15.1 15.2 ND ND ND ND 58.1 13.4 14.1 12.7 16.4 ND ND ND ND 60.9 13.2 16.5 14.5 14.4 ND ND ND ND 59.4 13.8 16.5 15.1 15.9 ND ND ND ND 62.8 14.3 14.8 15.6 15.7 ND ND ND ND 61.4 14.5 15.2 15.7 16.2 ND ND ND ND 61.9 15.0 15.4 13.8 16.1 ND ND ND ND 64.6 18.8 18.8 18.5 20.0 ND ND ND ND 74.2 15.1 15.8 16.6 15.5 ND ND ND ND 62.7 14.5 16.8 15.2 16.6 ND ND ND ND 61.3 13.2 13.8 13.6 15.0 ND ND ND ND 58.1 12.7 15.9 15.0 16.2 ND ND ND ND 59.3 16.0 14.4 15.1 16.2 ND ND ND ND 61.6 14.0 12.1 13.3 13.9 ND ND ND ND 58.6 12.7 15.5 14.4 15.9 ND ND ND ND 60.6 17.5 19.1 18.6 17.9 ND ND ND ND 79.3 15.6 17.7 16.8 18.5 ND ND ND ND 67.3 18.0 20.3 18.1 20.1 ND ND ND ND 78.9 14.4 14.7 15.1 15.8 ND ND ND ND 71.2 14.9 14.9 15.0 15.2 ND ND ND ND 57.6 18.1 17.6 18.8 19.9 ND ND ND ND 66.5 13.8 14.3 13.0 15.2 ND ND ND ND 60.4 17.7 15.5 15.2 16.6 ND ND ND ND 69.9 14.7 13.8 14.7 15.3 ND ND ND ND 60.1 17.1 16.1 18.1 17.3 ND ND ND ND 65.7 16.1 16.5 12.8 16.7 ND ND ND ND 64.2 15.0 16.4 13.4 15.5 ND ND ND ND 62.5 19.4 20.5 21.2 22.2 ND 4.8 5.5 6.5 62.8 20.5 22.0 18.6 21.4 4.8 6.3 ND 5.7 62.8 24.5 25.9 22.7 31.9 8.8 10.2 7.0 16.2 62.8 53.0 53.2 55.8 63.6 37.3 37.5 40.1 47.9 62.8 19.9 22.5 22.8 24.0 4.2 6.8 7.1 8.3 62.8 20.1 21.2 22.4 26.6 4.4 5.5 6.7 10.9 62.8 ND= Non-Detect BA+
Normalized Annual MDDA Annual Dose, Facility (mrem)
MA (mrem/yr)
Dose, FA 72.8 65.9 ND 71.6 66.1 ND 68.3 59.9 ND 72.4 61.8 ND 70.8 61.9 ND 70.5 57.5 ND 70.3 61.4 ND 66.3 55.3 ND 67.3 59.1 ND 66.0 58.6 ND 66.8 61.5 ND 69.2 59.1 ND 811 75.0 ND 66.0 57.9 ND 68.8 56.5 ND 67.3 58.5 ND 70.7 61.3 ND 69.3 60.3 ND 69.8 61.5 ND 72.4 60.2 ND 82.1 76.1 ND 70.6 62.9 ND 69.2 63.0 ND 65.9 55.6 ND 67.2 59.7 ND 69.5 61.7 ND 66.5 53.2 ND 68.5 58.5 ND 87.2 73.1 ND 75.2 68.6 ND 86.8 76.6 ND 79.1 60.0 ND 65.5 60.0 ND 74.4 74.4 ND 68.3 56.3 ND 77.8 65.0 ND 68.0 58.6 ND 73.6 68.6 ND 72.1 62.0 ND 70.4 60.2 ND 70.7 83.3 20.5 70.7 82.5 19.7 70.7 105.0 42.2 70.7 225.6 162.8 70.7 89.2 26.4 70.7 90.3 27.5
(')
I I\\)
u)
TABLE C-IX.2 MEAN QUARTLY OSLO RESULTS FOR THE INNER RING, OUTER RING, OTHER, CONTROL, AND INDEPENDENT SPENT FUEL STORAGE INSTALLATION (ISFSI) LOCATIONS FOR BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION OF THE STATION DATA COLLECTION SITE BOUNDARY INTERMEDIATE DIST OTHER CONTROL ISFSI PERIOD
+/- 2 S.D.
+/-2 S.D.
+/-2 S.D.
+/-2 S.D.
+/-2 S.D.
JAN-MAR 14.4 +/- 2.5 15.4+/-4.1 15.2 +/- 2.3 15.6 +/- 0.0 26.2 +/- 26.5 APR-JUN 15.3 +/- 3.3 16.1 +/- 4.3 16.1 +/- 3.2 15.5 +/- 0.0 27.6 +/- 25.4 JUL-SEP 14.7 +/- 2.6 15.8 +/- 3.8 14.9 +/- 3.8 16.7 +/- 00 27.3 +/- 28.2 OCT-DEC 15.9 +/- 1.9 16.8 +/- 3.9 16.3 +/- 1.9 18.1 +/- 0.0 31.6 +/- 32.2 TABLE C-IX.3
SUMMARY
OF THE AMBIENT DOSIMETRY PROGRAM FOR BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF MREM/QUARTER +/- 2 STANDARD DEVIATION SAMPLES PERIOD PERIOD PERIOD MEAN LOCATION ANALYZED MINIMUM MAXIMUM
+/-2 S.D.
SITE BOUNDARY 64 12.4 20.4 15.1 +/- 2.8 INTERMEDIATE DISTANCE 64 12.1 20.3 16.0+/-4.1 OTHER 28 12.8 18.8 15.6 +/- 3.0 CONTROL 4
14.0 17.8 16.5 +/- 2.4 ISFSI 24 18.6 63.6 28.2 +/- 26.6 SITE BOUNDARY STATIONS-BD-101, BD-102, BD-103, BD-104, BD-105, BD-106, BD-107, BD-108, BD-109, BD-110, BD-111A, BD-112 BD-113A, BD-114, BD-115, BD-116 INTERMEDIATE DISTANCE STATIONS-BD-201, BD-202, BD-203, BD-204, BD-205, BD-206, BD-207, BD-208, BD-209, BD-210, BD-211, BD-212, BD-213, BD-214, BD-215, BD-216 OTHER STATIONS - BD-02, BD-04, BD-05, BD-06, BD-19, BD-20, BD-21 CONTROL STATION - BD-03 ISFSI STATIONS - BD-ISFSl-104-3, BD-ISFSl-104-4, BD-ISFSl-105-3, BD-ISFSl-105-4, BD-ISFSl-110-3, BS-ISFSl-110-4
FIGURE C-1 Surface Water - Gross Beta - Stations BD-10 and BD-25 (C)
Collected in the Vicinity of Braidwood Station, 2000 - 2023
- ' u
- a.
BD-1 O Kankaee River, Downstream 10.0 8.0 6.0 4.0 2.0 0.0 +---------,1------------t-------+--------1 01-01-00 12-31-05 12-31-11 12-30-17 12-30-23 BD-25 (C) Kankakee River, Upstream 16.0 14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 01-01-00 12-31-05 12-31-11 12-30-17 12-30-23 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-24
FIGURE C-2 Surface Water - Gross Beta - Stations BD-38 and BD-40 Collected in the Vicinity of Braidwood Station, 2006 - 2023
..J
~
Q.
14.0 12.0 10.0 8.0 6.0 4.0 2.0 0.0 16.0 14.0 12.0 10.0 8.0 6.0 4.0 2.0 01-25-07 BD-38 Main Drainage Ditch 04-20-11 07-14-15 10-07-19 12-31-23 BD-40 Braidwood Station Cooling Lake 0.0 -------+-----------------~
10-05-06 01-26-11 05-19-15 09-09-19 12-31-23 C-25
FIGURE C-3 Surface Water - Gross Beta - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2023 BD-55 North Pond Fatlan Site 14.0 12.0 10.0 8.0 u
Cl.
6.0 4.0 2.0 0.0 01-25-07 04-20-11 07-14-15 10-07-19 12-31-23 BD-56 South Pond Fatlan Site 10.0 8.0 6.0 4.0 2.0 0.0 +----------1------+------+--------1 01-25-07 04-20-11 07-14-15 10-07-19 12-31-23 GAPS IN DATA ARE DUE TO SAMPLING POINTS BEING FROZEN AT TIME OF COLLECTION C-26
FIGURE C-4 Surface Water - Tritium - Stations BD-10 and BD-25 (C)
Collected in the Vicinity of Braidwood Station, 2000 - 2023 BD-1 O Kankakee River, Downstream 3000 2500 2000 1500 u
C.
1000 500 0
03-25-00 03-04-06 02-11-12 01-20-18 12-30-23 BD-25 (C) Kankakee River, Upstream 400 300 s
u 200 C.
100 0+-------+-------------+-------
03-25-00 03-04-06 02-11-12 01-20-18 12-30-23 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-27
FIGURE C-5 Surface Water - Tritium - Stations BD-38 and BD-40 Collected in the Vicinity of Braidwood Station, 2006 - 2023 BD-38 Main Drainage Ditch 600 500 400 300 0
0..
200 100 0
01-01-06 06-15-10 11-27-14 05-11-19 10-23-23 BD-40 Braidwood Station Cooling Lake 400 300
~
200 0..
100 0+--------------------------1 07-20-06 11-29-10 04-10-15 08-20-19 12-30-23 C-28
FIGURE C-6 Surface Water - Tritium - Stations BD-55 and BD-56 Collected in the Vicinity of Braidwood Station, 2007 - 2023 BD-55 North Pond Fatlan Site 250 200 150 u
- a.
100 50 0
03-29-07 06-06-11 08-14-15 10-22-19 12-30-23 BD-56 South Pond Fatlan Site 400 350 300 250
- ! u 200
- a.
150 100 50 0
03-29-07 06-06-11 08-14-15 10-22-19 12-30-23 C-29
FIGURE C-7 Public Water - Gross Beta - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2023 s
u C.
BD-22 Wilmington 10.0 8.0 6.0 4.0 2.0 0.0 -----------------------------1 01-29-00 01-21-06 01-14-12 01-06-18 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-30 12-30-23
FIGURE C-8 Public Water - Tritium - Station BD-22 Collected in the Vicinity of Braidwood Station, 2000 - 2023 8000 7200 6400 5600 4800
~
4000 Cl.
3200 2400 1600 800 BD-22 Wilmington o.J_Sj~~~~~~~~~~~~~~~~~~~~
01-29-00 01-21-06 01-14-12 01-06-18 DUE TO VENDOR CHANGE, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JUNE 2005 C-31 12-30-23
FIGURE C-9 Ground/Well Water - Tritium - Stations BD-13 and BD-34 Collected in the Vicinity of Braidwood Station, 2000 - 2023
- ! u C.
- ! u C.
BD-13 Braidwood City Hall Well 500 400 300 200 100 0
01-07-00 10-24-04 08-11-09 05-29-14 03-16-19 01-01-24 BD-34 Gibson Well 700 600 500 400 300 200 100 0
01-07-00 10-24-04 08-11-09 05-29-14 03-16-19 01-01-24 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JULY.
C-32
FIGURE C-10 Ground/Well Water - Tritium - Stations BD-35 and BD-36 Collected in the Vicinity of Braidwood Station, 2000 - 2023 i:3 C.
s
(.)
C.
BD-35 Joly Well 500 400 300 200
\\
100 0
01-07-00 10-24-04 08-11-09 05-29-14 03-16-19 01-01-24 BD-36 Hutton Well 1200 1000 800 600 400 200 0
01-07-00 10-24-04 08-11-09 05-29-14 03-16-19 01-01-24 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JULY.
C-33
FIGURE C-11 Ground/Well Water - Tritium - Station BD-37 Collected in the Vicinity of Braidwood Station, 2000 - 2023 BD-37 Nurczyk Well 600 500 400 0
- c.
300 200 100 0 +----"-~---+-----1------+------f-------1 01-07-00 10-24-04 08-11-09 05-29-14 03-16-19 01-01-24 DUE TO VENDOR CHANGE IN 2005, < VALUES ARE LLD VALUES JANUARY THROUGH JUNE 2005 AND MDC VALUES AFTER JULY.
C-34
FIGURE C-12 Ground/Well Water - Tritium - Station BD-50 and BD-51 Collected in the Vicinity of Braidwood Station, 2007 - 2023 BD-50 Skole Well 1000 900 800 700 0
600
- ! u 500 C.
400 300 200 100 0
01-01-07 04-02-11 07-02-15 10-01-19 12-31-23 STATION 80-50 WAS INITIALLY DISCONTINUED ON 10118/07 AND RESUMED ON 04/08/10 BD-51 Fatlan Well 600 500 400
- ! u 300 C.
200 100 0
01-03-07 04-04-11 07-04-15 10-03-19 01-02-24 C-35
FIGURE C-13 Ground/Well Water - Tritium - Station BD-54 Collected in the Vicinity of Braidwood Station, 2007 - 2023 BD-54 Cash Well 600 500 400 i:3 300 C.
200 100 0
01-03-07 04-04-11 07-04-15 10-03-19 01-02-24 C-36
FIGURE C-14 Air Particulate - Gross Beta-Stations BD-03 (C) and BD-06 Collected in the Vicinity of Braidwood Station, 2000 - 2023 BD-03 (C) County Line Road 80.0 60.0 M
.§ u
- a.
40.0 M
9 w 0....
20.0 0.0 -----------------------1 01-07-00 01-04-06 01-02-12 12-30-17 12-28-23 BD-06 Godley 60.0 50.0 40.0
.§ u
- a.
g 30.0 UJ 0....
20.0 10.0 0.0 ------+------------------I 01-07-00 01-04-06 01-02-12 12-30-17 12-28-23 C-37
FIGURE C-15 Air Particulate - Gross Beta-Stations BD-19 and BD-20 Collected in the Vicinity of Braidwood Station, 2000 - 2023 M
. u C.
M 0
111 0.....
M
. u C.
M 0
111 0.....
BD-19 Near Field, NW 60.0 50.0 40.0 30.0 20.0 10.0 0.0 +--------------------------1 01-07-00 01-04-06 01-02-12 12-30-17 12-28-23 BD-20 Near Field, N 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 -------------------------1 01-07-00 01-04-06 01-02-12 12-30-17 12-28-23 C-38
FIGURE C-16 Air Particulate - Gross Beta-Station BD-21 Collected in the Vicinity of Braidwood Station, 2000 - 2023 70.0 60.0 50.0
-E u 40.0
- a.
0 UJ 30.0 0...
20.0 10.0 BD-21 Near Field, NE 0.0 +------+------+------+--------1 01-07-00 01-04-06 01-02-12 12-30-17 12-28-23 C-39
FIGURE C-17 Air Particulate - Gross Beta-Stations BD-02 and BD-04 Collected in the Vicinity of Braidwood Station, 2005 - 2023 60.0 50.0 M
40.0
.§ u
- a.
g 30.0 LU 0....
20.0 10.0 BD-02 Near Field, NW 0.0 ------------------------;
07-07-05 60.0 50.0 40.0 M
.§ u
- a.
30.0 M
0 LU
~
20.0 10.0 02-18-10 10-02-14 05-16-19 12-28-23 BD-04 Near Field, N 0.0 +--------------------+-----
07-07-05 02-18-10 10-02-14 05-16-19 12-28-23 C-40
FIGURE C-18 Air Particulate - Gross Beta-Station BD-05 Collected in the Vicinity of Braidwood Station, 2005 - 2023 60.0 50.0 40.0 M
.§ u
- c.
30.0 M
9 w
0
,r-20.0 10.0 BD-05 Near Field, NE 0.0 +------+------1------------,f--------1 07-07-05 02-18-10 10-02-14 05-16-19 12-28-23 C-41
Intentionally left blank
APPENDIX D INTER-LABORATORY COMPARISON PROGRAM
Intentionally left blank
Analytics Environmental Radioactivity Cross Check Program Table D.1 Teledlne Brown En9ineerin9 Environmental Services Identification TBE Known Ratio of TBE to Month/Year Number Matrix Nuclide Units Reported Value (al Analytics Result Evaluation lbl Value March 2023 E13826 Milk Sr-89 pCi/L 70.5 93.1 0.76 w
Sr-90 pCi/L 12.3 14.7 0.84 A
E13827 Milk Ce-141 pCi/L 127 139 0.91 A
Co-58 pCi/L 119 131 0.91 A
Co-60 pCi/L 250 279 0.90 A
Cr-51 pCi/L 246 302 0.82 A
Cs-134 pCi/L 172 200 0.86 A
Cs-137 pCi/L 125 140 0.89 A
Fe-59 pCi/L 122 122 1.00 A
1-131 pCi/L 70.2 82.0 0.86 A
Mn-54 pCi/L 165 180 0.92 A
Zn-65 pCi/L 306 306 1.00 A
E13828 Charcoal 1-131 pCi 79.0 89.9 0.88 A
E13829 AP Ce-141 pCi 91.9 87.8 1 05 A
Co-58 pCi 87.5 82.5 1 06 A
Co-60 pCi 199 176 1.13 A
Cr-51 pCi 218 191 1.14 A
Cs-134 pCi 119 126 0.94 A
Cs-137 pCi 924 88.7 1.04 A
Fe-59 pCi 95.5 76.9 1.24 w
Mn-54 pCi 120 113 1.06 A
Zn-65 pCi 179 193 0.93 A
E13830 Soil Ce-141 pCi/g 0.224 0.220 1.02 A
Co-58 pCi/g 0.193 0.207 0.93 A
Co-60 pCi/g 0.406 0441 0.92 A
Cr-51 pCi/g 0464 0477 0.97 A
Cs-134 pCi/g 0.334 0.316 1.06 A
Cs-137 pCi/g 0.270 0.288 0.94 A
Fe-59 pCi/g 0.183 0.193 0.95 A
Mn-54 pCi/g 0.263 0.284 0.93 A
Zn-65 pCi/g 0.475 0.484 0.98 A
E13831 AP Sr-89 pCi 99.4 90.8 1.09 A
Sr-90 pCi 14.6 14.3 1.02 A
(a) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation (b) Analytics evaluation based on TBE internal QC limits:
A= Acceptable - reported result falls within ratio limits of 0.80-1.20 W= Acceptable with warning - reported result falls within 0. 70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of< 0. 70 and> 1.30 (Page 1 of 2)
Analytics Environmental Radioactivity Cross Check Program Table D.1 Teledine Brown Engineering Environmental Services Identification TBE Known Ratio of TBE to Month/Year Number Matrix Nuclide Units Reported Value (a)
Analytics Result Evaluation (b)
Value September 2023 E13832 Milk Sr-89 pCi/L 49.8 71.4 0.70 w
Sr-90 pCi/L 7.28 12.8 0.57 N(1)
E13833 Milk Ce-141 pCi/L 93.4 104 0.90 A
Co-58 pCi/L 58.2 65.8 0.88 A
Co-60 pCi/L 190 223 0.85 A
Cr-51 pCi/L 207 205 1 01 A
Cs-134 pCi/L 96.0 114 0.84 A
Cs-137 pCi/L 121 141 0.86 A
Fe-59 pCi/L 78.8 78.8 1.00 A
1-131 pCi/L 27.9 37.4 0.75 w
Mn-54 pCi/L 128 146 0.88 A
Zn-65 pCi/L 185 203 0.91 A
E13834 Charcoal 1-131 pCi 76.9 78.7 0.98 A
E13835 AP Ce-141 pCi 91.9 87.1 1 05 A
Co-58 pCi 58.7 55.2 1 06 A
Co-60 pCi 200 187 1 07 A
Cr-51 pCi 192 172 1.12 A
Cs-134 pCi 89.6 96 0.94 A
Cs-137 pCi 109 119 0.92 A
Fe-59 pCi 68.3 66.1 1.03 A
Mn-54 pCi 129 123 1.05 A
Zn-65 pCi 163 171 0.96 A
E13836 Soil Ce-141 pCi/g 0.228 0.184 1.24 w
Co-58 pCi/g 0.103 0.116 0.89 A
Co-60 pCi/g 0.364 0.394 0.92 A
Cr-51 pCi/g 0.371 0.362 1.02 A
Cs-134 pCi/g 0.176 0.202 0.87 A
Cs-137 pCi/g 0.285 0.315 0.90 A
Fe-59 pCi/g 0.140 0.139 1.00 A
Mn-54 pCi/g 0.237 0.259 0.92 A
Zn-65 pCi/g 0.349 0.359 0.97 A
E13837 AP Sr-89 pCi 74.6 80.2 0.93 A
Sr-90 pCi 13.9 14.4 0.96 A
(a) The Analytics known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation (b) Analytics evaluation based on TBE internal QC limits:
A = Acceptable - reported result falls within ratio limits of 0.80-1.20 W = Acceptable with warning - reported result falls within 0. 70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of< 0. 70 and> 1.30 (1) See NCR 23-24 (Page 2 of 2)
DOE's Mixed Analyte Performance Evaluation Program (MAPEP)
Table D.2 Teledine Brown Engineerin!il Environmental Services Identification TBE Known Acceptance Month/Year Number Matrix Nuclide Units Reported Value (a)
Range Evaluation (bl Value February 2023 23-MaS48 Soil Ni-63 Sq/kg 294 1130 791 - 1469 N(3J 23-MaSU48 Urine Cs-134 Sq/L 9.92 10 6.7-12.4 A
Cs-137 Sq/L 0.0994
( 1)
A Co-57 Sq/L 9.35 8.67 6 07 - 11.27 A
Co-60 Sq/L 9.03 8.13 5.69 - 10.57 A
Mn-54 Sq/L 11.80 100 7.0 - 13.0 A
U-234 Sq/L 0.01 Not spiked U-238 Sq/L 0.01 Not spiked Zn-65 Sq/L 10.60 9.29 6.50 - 12.08 A
23-MaW48 Water Ni-63 Sq/L 23.1 27.3 19.1 - 35.5 A
23-RdV48 Vegetation Cs-134 Sq/sample 5.6 7.6 5.32 - 9.88 w
Cs-137 Sq/sample 0.03 (1)
A Co-57 Sq/sample 5.9 6.9 4.85-901 A
Co-60 Sq/sample 5.00 6.51 4.56-8.46 w
Mn-54 Sq/sample 6.08 8.03 5.62 - 10.44 w
Sr-90 Sq/sample 0.05 (1)
N<4l Zn-65 Sq/sample 5.49 7.43 5.20- 9.66 w
August 2023 23-MaS49 Soil Fe-55 Sq/kg 346 1280 896 - 1664 N(sJ Ni-63 Sq/kg 1260 1370 959 - 1781 A
23-MaW49 Water Ni-63 Sq/L 1.0 (2)
A 23-RdV49 Vegetation Cs-134 Sq/sample 3.860 4.98 3.49-6.47 w
Cs-137 Sq/sample 0.027 (1)
A Co-57 Sq/sample 3.88 4.24 2.97 - 5.51 A
Co-60 Sq/sample 2.37 2.79 1.95-3.63 A
Mn-54 Sq/sample 2.04 2.56 1.79-3.33 w
Sr-90 Sq/sample 0.96 1.17 0.82 - 1.52 A
Zn-65 Sq/sample
-0.514 (1)
A (a) The MAPEP known value is equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation (b) DOEIMAPEP evaluation A = Acceptable - reported result falls within ratio limits of 0. 80-1.20 W = Acceptable with warning - reported result falls within 0. 70-0.80 or 1.20-1.30 N = Not Acceptable - reported result falls outside the ratio limits of< 0 70 and> 1.30 (1) False positive test (2) Sensitivity evaluation (3) See NCR 23-08 (4) See NCR 23-09 (5) Initial evaluation - See CAR 23-31 (Page 1 of 1)
ERA Environmental Radioactivity Cross Check Program Table D.3 Teledyne Brown Engineering Environmental Services Identification Matrix TBE Reported Known Acceptance Evaluation (bl Month/Year Number Nuclide Units Value Value (a)
Limits March 2023 MRAD-38 Water Am-241 pCi/L 28.1 32.1 22.0 - 41.0 A
Fe-55 pCi/L 1180 1380 811-2010 A
Pu-238 pCi/L 65.6 70.7 42.5 - 91.6 A
Pu-239 pCi/L 82.9 92.4 57.2 - 114 A
Soil Sr-90 pCi/kg 2630 2580 803 - 4020 A
AP GR-A pCi/filter 69.6 76.8 40.1 -127 A
GR-B pCi/filter 36.8 32.8 19.9 - 49.6 A
April 2023 RAD-133 Water Ba-133 pCi/L 26.0 22.3 17.1 -25.8 NI1I Cs-134 pCi/L 72.1 77.6 63.4 - 85.4 A
Cs-137 pCi/L 62.1 63.1 56.8 - 72.2 A
Co-60 pCi/L 32.6 30.3 26.7 - 36.1 A
Zn-65 pCi/L 253 242 218 - 283 A
GR-A pCi/L 34.2 29.2 14.9 - 38.2 A
GR-B pCi/L 64.3 60.7 41.8 - 67.4 A
U-Nat pCi/L 61.75 62.7 51.2 - 69.0 A
H-3 pCi/L 13,300 12700 11, 1 00 - 14,000 A
Sr-89 pCi/L 67.0 61.1 49.2 - 69.0 A
Sr-90 pCi/L 36.5 36.0 26.4 - 41.5 A
1-131 pCi/L 24.3 28.7 23.9 - 33.6 A
September 2023 MRAD-39 Water Am-241 pCi/L 54.0 710 48.7 - 90.8 A
Fe-55 pCi/L 2430 2630 1550 - 3830 A
Pu-238 pCi/L 172 177 106 - 229 A
Pu-239 pCi/L 171 182 113 - 224 A
Soil Sr-90 pCi/kg 9580 6800 2120 - 10,600 A
AP GR-A pCi/filter 82.2 79.8 41.7 - 131 A
GR-B pCi/filter 54.3 42.6 25.8 - 64.4 A
October 2023 RAD-135 Water Ba-133 pCi/L 86.3 92.2 73.8 - 111 A
Cs-134 pCi/L 38.4 41.2 27.9 - 54.5 A
Cs-137 pCi/L 194 199 161 -237 A
Co-60 pCi/L 49.5 47.8 33.8 - 61.8 A
Zn-65 pCi/L 59.7 57.0 23.7 - 90.3 A
GR-A pCi/L 53.2 70.6 54.0 - 87.2 NI2I GR-B pCi/L 46.9 42.2 30.5 - 53.9 A
U-Nat pCi/L 51.26 51.7 45.9-57.5 A
H-3 pCi/L 20,100 22,900 19,700 - 26,100 A
Sr-89 pCi/L 51.1 38.2 25.2 - 51.2 A
Sr-90 pCi/L 31.7 35.7 30.3-41.1 A
1-131 pCi/L 23.5 29.7 25.8 - 33.6 Nl3J (a) The ERA known value 1s equal to 100% of the parameter present in the standard as determined by gravimetric and/or volumetric measurements made during standard preparation.
(b) ERA evaluation.
A = Acceptable - Reported value falls within the Acceptance Limits N = Not Acceptable - Reported value falls outside of the Acceptance Limits (1) See NCR 23-10 (2) See NCR 23-20 (3) See NCR 23-21 (Page 1 of 1)
APPENDIX E ERRATA DATA
Intentionally left blank
There was no errata data for 2023.
E-1
Intentionally left blank
APPENDIX F ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)
Intentionally left blank
Docket No:
50-456 50-457 BRAIDWOOD STATION UNIT 1 and UNIT 2 Annual Radiological Groundwater Protection Program Report 1 January through 31 December 2023 1
l!!Mf" Constellati n Braidwood Station Braceville, IL 60407 May 2024
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Table Of Contents I. Summary and Conclusions................................................................................................ 1 II. Introduction........................................................................................................................ 2 A. Objectives of the RGPP........................................................................................ 2 B. Implementation of the Objectives.......................................................................... 2 C. Program Description............................................................................................. 3 D. Characteristics of Tritium (H-3)............................................................................. 3 Ill. Program Description........................................................................................................ 4 A. Sample Analysis.................................................................................................... 4 B. Data Interpretation................................................................................................. 4 C. Background Analysis.......................................................................................... 5 IV. Results and Discussion................................................................................................... 7 A. Missed Samples.................................................................................................... 7 B. Groundwater Results............................................................................................. 7 C. Surface Water Results.......................................................................................... 7 D. Summary of Results - Inter-laboratory Comparison Program............................. 8 E. Leaks, Spills, and Releases.................................................................................. 8 F. Trends................................................................................................................... 8 G. Investigations........................................................................................................ 8 H. Actions Taken........................................................................................................ 8
Appendix A Tables Table A-1
. Figures Figure A-1 Figure A-2 Appendix B Tables Table B-1.1 Table B-1.2 Table B-1.3 Table B-I1.1 Table B-I1.2 Appendices Location Designation Radiological Groundwater Protection Program - Sampling Locations, Braidwood Station, 2023 RGPP Groundwater Monitoring Well Sample Locations, Braidwood Station, 2023 RGPP Surface Water Sample Locations Braidwood Station, 2023 Data Tables Concentrations of Tritium, Strontium and Gross Alpha in Groundwater Samples Collected in the Vicinity of Braidwood Station, 2023 Concentrations of Gamma Emitters in Groundwater Samples Collected in the Vicinity of Braidwood Station, 2023 Concentrations of Hard-To-Detects in Groundwater Samples Collected as part of the Radiological Groundwater Protection Program in the Vicinity of Braidwood Station, 2023 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2023 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Braidwood Station, 2023 ii
I.
Summary and Conclusions In 2023, Constellation continued a comprehensive program that evaluates the impact of station operations on groundwater and surface water in the vicinity of Braidwood Station. This report reviews groundwater and surface water samples collected from the environment, both on and off station property, in 2023. During that time period, 303 analyses were performed on 127 samples from 32 locations.
In assessing all the data gathered for this report, it was concluded that the operation of Braidwood Station had no adverse radiological impact on the environment.
Gamma-emitting radionuclides associated with licensed plant operations were not detected at concentrations greater than their respective Lower Limits of Detection (LLDs) as specified in the Offsite Dose Calculation Manual (ODCM) in any of the groundwater or surface water samples. In the case of tritium, Constellation specified that its laboratories achieve a lower limit of detection 10 times less than Braidwood's ODCM and 100 times less than federal regulation.
Strontium-89/90 (Sr-89/90) was not detected at a concentration greater than the LLD of 10.0 and 1.0 picocuries per liter (pCi/L) respectively in any of the groundwater samples tested.
No tritium (H-3) was detected in any sample at concentrations greater than the United States Environmental Protection Agency (USEPA) drinking water standard (and the Nuclear Regulatory Commission Reporting Limit) of 20,000 pCi/L. Low levels of tritium were detected in groundwater at concentrations greater than the LLD of 200 pCi/L in 57 of 127 samples. The tritium concentrations ranged from 196 +/- 126 pCi/L to 1480 +/- 222 pCi/L. The tritium that was detected in the groundwater or surface water is believed to be the result of isolated historical releases and/or background from external sources greater than 200 pCi/L.
Gross Alpha analyses in the dissolved and suspended fractions were performed on one groundwater water sample in 2023. Neither Gross Alpha (dissolved) nor Gross Alpha (suspended) was detected.
Gross Alpha analyses in the dissolved and suspended fractions were not performed on surface water samples in 2023.
Hard-To-Detect analyses including americium-241 (Am-241 ), cerium-242 (Cm-242), cerium 243/244 (Cm-243/244), plutonium-238 (Pu-238), plutonium-239/240 (Pu-239/240), uranium-234 (U-234), uranium-235 (U-235) and uranium-238 (U-238) were not performed in 2023.
II.
Introduction The Braidwood Station, consisting of two 3,645 MWt pressurized water reactors owned and operated by Constellation Energy is located in Will County, Illinois.
Unit No. 1 went critical on May 29, 1987. Unit No. 2 went critical on March 08, 1988. The site is located in northeastern Illinois, 20 miles south-southwest of Joliet, Illinois, 60 miles southwest of Chicago and southwest of the Kankakee River.
This report covers those analyses performed by Teledyne Brown Engineering (TSE) on samples collected in 2023.
A.
Objective of the Radiological Groundwater Protection Program (RGPP)
The long-term objectives of the RGPP are as follows:
- 1. Identify suitable locations to monitor and evaluate potential impacts from station operations to preclude radiological impact to the environment and potential drinking water sources;
- 2. Understand the local hydrogeologic regime in the vicinity of the station and maintain up-to-date knowledge of flow patterns on the surface and shallow subsurface;
- 3. Perform routine water sampling and radiological analysis of water from selected locations;
- 4. Report new leaks, spills, or other detections with potential radiological significance to stakeholders in a timely manner;
- 5. Regularly assess analytical results to identify adverse trends;
- 6. Take necessary corrective actions to protect groundwater resources.
B.
Implementation of the Objectives The objectives identified have been implemented at Braidwood Station as discussed below:
- 1.
Constellation identified locations to monitor and evaluated potential impacts from station operations
- 2.
The Braidwood Station reports describe the local hydrogeologic regime.
Periodically, the flow patterns on the surface and shallow subsurface are updated based on ongoing measurements
- 3.
Braidwood Station will continue to perform routine sampling and radiological analysis of water from selected locations
- 4.
Braidwood Station has implemented procedures to identify and report new leaks, spills, or other detections with potential radiological significance in a timely manner
- 5.
Braidwood Station staff and consulting hydrogeologist assess analytical results on an ongoing basis to identify adverse trends C.
Program Description 1. Sample Collection Sample locations can be found in Table A-1 and Figures A-1 through A-5, Appendix A.
- 2.
Groundwater and Surface Water Samples of groundwater and surface water are collected, managed, transported and analyzed in accordance with EPA methods. Sample locations, sample collection frequencies and analytical frequencies are managed 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 as it is received. Additionally, analytical data results are reviewed by an independent hydrogeologist for adverse trends or changes to hydrogeologic conditions.
D.
Characteristics of Tritium (H-3)
Tritium is a radioactive isotope of hydrogen. Its chemical properties are the same as hydrogen. Tritiated water behaves the same as ordinary water in both the environment and the body. Tritiated water can be taken into the body by drinking water, breathing air, eating food or absorption through the skin. Once tritiated water enters the body, it disperses quickly and is uniformly distributed. Tritiated water is excreted primarily through urine with a clearance rate characterized by an effective biological half-life of about 14 days. With such a short biological half-life, an acute ingestion would be cleared rapidly. Organically bound tritium (tritium that is incorporated into carbon containing compounds) can remain in the body for a longer period.
Tritium is produced naturally in the upper atmosphere when cosmic rays interact with air molecules. Tritium is also produced during nuclear weapons explosions, as a by-product in reactors producing electricity and in special production reactors. 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 non-tritiated groundwater.
Ill.
Program Description A.
Sample Analysis This section describes the general analytical methodologies used by Teledyne Brown Engineering (TBE) to analyze the environmental samples for radioactivity for the Braidwood Station RGPP in 2023.
In order to achieve the stated objectives, the current program includes the following analyses:
- 1.
Concentrations of gamma emitters in groundwater and surface water
- 2.
Concentrations of strontium in groundwater and surface water
- 3.
Concentrations of tritium in groundwater and surface water
- 4.
Concentrations of Gross Alpha (Dissolved and Suspended) in groundwater and surface water
- 5.
Concentrations of Am-241 in groundwater
- 6.
Concentrations of Cm-242 and Cm-243/244 in groundwater
- 7.
Concentrations of Pu-238 and Pu-239/240 in groundwater
- 8.
Concentrations of U-234, U-235 and U-238 in groundwater
- 9.
Concentrations of Fe-55 in groundwater
- 10. Concentrations of Ni-63 in groundwater B.
Data Interpretation The radiological data collected prior to Braidwood Station becoming operational was used as a baseline with which these operational data was compared. For the purpose of this report, Braidwood Station was considered operational at initial criticality. Several factors were important in the interpretation of the data:
- 1.
Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is specified by federal regulation as 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 calibration standards, sample volume or weight measurements, sampling uncertainty and other factors. 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, as TPU, that is obtained by propagating all sources of analytical uncertainty in measurements.
Analytical uncertainties are reported at the 95% confidence level in this report for reporting consistency with the AREOR.
Gamma spectroscopy results for each type of sample were grouped as follows:
For groundwater and surface water 14 nuclides, Be-7, K-40, Mn-54, Co-58, Fe-59, Co-60, Zn-65, Nb-95, Zr-95, 1-131, Cs-134, Cs-137, Ba-140 and La-140 were reported.
C.
Background Analysis A pre-operational radiological environmental monitoring program (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 the report entitled, Environmental Radiological Monitoring for Braidwood Nuclear Power Station Commonwealth Edison Company, Annual Report 1986, May 1987.
- 1.
Background Concentrations of Tritium The purpose of the following discussion is to summarize background measurements of tritium in various media performed by others.
- 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 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 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 USEPA's RadNet database. GNIP provides tritium precipitation concentration data for samples collected worldwide from 1960 to 2014. RadNet provides tritium precipitation concentration data for samples collected at stations throughout the U.S. from 1960 up to and including 2023. 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 up until 1975 followed by a gradual decline since that time. Tritium concentrations in Midwest precipitation have typically been below 100 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 Tritium concentrations are routinely measured in large surface water bodies, including Lake Michigan and the Mississippi River.
Illinois surface water data were typically less than 100 pCi/L.
The USEPA RadNet surface water data typically has a reported
'Combined Standard Uncertainty' of 35 to 50 pCi/L. According to USE PA, this corresponds to a+/- 70 to 100 pCi/L 95% confidence bound on each 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. These sample results cannot be distinguished as different from background at this concentration.
IV.
Results and Discussion A.
Missed Samples There was one missed sample during 2023 from location PS10. A 3rd Quarter sample could not be collected due to insufficient water in the well.
B.
Groundwater Results Samples were collected from on-and off-site wells throughout the year in accordance with the Station radiological groundwater protection program.
Analytical results and anomalies are discussed below:
Tritium Samples from all locations were analyzed for tritium activity. Tritium values ranged from the lower detection limit to 1480 pCi/L.
(Tables B-1.1, Appendix B)
Strontium Forty (40) samples for analyzed for Sr-89 and Sr-90. Sr-89 was less than the required detection limit of 10.0 pCi/liter. Sr-90 was less than the required detection limit of 1.0 pCi/liter. (Table B-1.1, Appendix B)
Gross Alpha (dissolved and suspended)
Gross Alpha analyses in the dissolved and suspended fractions were performed on thirty-two (32) groundwater water samples in 2023. Neither Gross Alpha (dissolved) or Gross Alpha (suspended) was detected.
(Table B-1.1, Appendix B)
Hard-To-Detect Hard-To-Detect analyses including Am-241, Cm-242, Cm-243/244, Pu-238, Pu-239/240, U-234, U-235 and U-238 were not performed 2023.
(Table B-1.3, Appendix B)
Gamma Emitters Thirty-two (32) samples were analyzed for gamma-emitting nuclides in 2023. Naturally-occurring K-40 was detected in one sample at a concentration of 56 +/- 28 pCi/L. No other gamma-emitting nuclides were detected in any of the samples analyzed. (Table B-1.2, Appendix B)
C.
Surface Water Results No samples were collected from surface water locations in accordance with the station radiological groundwater protection program. Analytical results and anomalies are discussed below:
Tritium No samples were collected or analyzed for tritium activity.
(Table B-I1.1, Table B-I1.2, Appendix B)
D.
Summary of Results - Inter-Laboratory Comparison Program Inter-Laboratory Comparison Program results for TBE are presented in the AREOR.
E.
Leaks, Spills, and Releases There were no leaks, spills or releases to groundwater in 2023.
F.
Trends and Analyses Since June 2017, the CWBD House well tritium concentrations have been decreasing steadily. Monitoring of groundwater wells surrounding the plant indicate that tritium concentrations in affected areas near the Turbine Building have remained relatively unchanged since 2010.
G.
Investigations There were no new investigations in 2023.
H.
Actions Taken
- 1. Installation of Monitoring Wells Corrective actions taken in response to the CWBD House event included the placement of multiple monitoring wells at various depths in the vicinity of the CWBD house to determine soil contamination levels, as well as the establishment of soil remediation efforts to remove the tritium contamination from the area.
- 2. Compensatory Actions The discharges of the CWBD House remediation wells are treated as non-routine planned discharges. They are sampled regularly and permitted in the same manner as other ODCM pathways. The corresponding activity values are included as part of Table B-1.1 in this report.
- 3. Use of all remediation and support equipment from Constellation Braidwood Station property has stopped due to closure of the Braidwood Generating Station Consent Order No. 06 MR 248. Consent Order No. 06 MR 248 was terminated on May 14, 2020, by the Illinois Attorney General and Illinois Environmental Protection Agency.
APPENDIX A LOCATION DESIGNATION
Intentionally left blank
TABLE A-1: Radiological Groundwater Protection Program Sampling Locations, Braidwood Station, 2023 Station Code SamQle DescriQtion 0WM31P Drinking Water DITCH F (DS-2)
Surface Water MW-2 Monitoring Well MW-4 Monitoring Well MW-5 Monitoring Well MW-6 Monitoring Well MW-7 Monitoring Well MW-9 Monitoring Well MW-11 Monitoring Well MW-102R Monitoring Well MW-141D Monitoring Well MW-142D Monitoring Well MW-143D Monitoring Well MW-144D Monitoring Well MW-145D Monitoring Well MW-154 Background Well MW-155 Background Well MW-159D Monitoring Well MW-1620 Monitoring Well MW-BW-201S Monitoring Well MW-BW-202S Monitoring Well MW-BW-203S Monitoring Well MW-BW-2071 Monitoring Well PS-7 Monitoring Well PS-8 Monitoring Well PS-9 Monitoring Well PS-10 Monitoring Well PS-11 Monitoring Well PS-12 Monitoring Well PS-13 Monitoring Well PS-14 Monitoring Well PS-15 Monitoring Well RW-6 Recovery Well RW-11 Recovery Well RW-12 Recovery Well SG-BW-102 DITCH C Surface Water VB1-1 Monitoring Well VB2-5DR Monitoring Well VB3-2 Monitoring Well VB5-2 Monitoring Well VB6-1 Monitoring Well VB7-1 Monitoring Well VB6-1 Monitoring Well VB7-1 Monitoring Well VB8-2R Monitoring Well VB9-1 Monitoring Well VB10-1R Monitoring Well VB11-1 Monitoring Well A-1
)>
I I\\J Main Plant Area
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. MW-11 MW-BW-143D MW-BW-162D MW-5
- MW-?
MW-4 MW-BW-2071
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- MW-BW-142D MW-BW-144D c!;*
MW-G MW-2 MW-BW-141D 0
400
- -====-*-==Feet 200 MW-BW-201S MW-BW-202S VBS-1 VB8-2R MW-BW-203S SG-BW-102*,
VB10-1R VB9--1
-~... --
VB1-1 VB3-2 MW-102R VBS-2 VB?-1 SG-BW-102 RW-6
':4. DITCH (DS-2)
- VB1"1 0
1.000 2,000
- -==-*-==Feet CWBH Area VB11-1 PS-10
- PS-12
- VB3-2 MW-102R 0
MW-145D 50 100 o---===4'::11000--c:::=8::i,oreet
.._ _______________ _, * -=--=:::iFeel Explanation:
Surface Water Location Shallow Aquifer Monitoring Well Intermediate Aquifer Monitoring Well Figure A-1 RGPP Groundwater Monitoring Well Sample Locations Braidwood Station, 2023 RGPP Sample Locations Exelon Corporation Braidwood Generating Station
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6!ELON GENERATION BRAIDWOOD STATlON SURFACE WATER LOCATIONS TO ae SAMPLED AS PART OF THE RGPP Figure A-2 RGPP CWBD Monitoring Water Sample Locations Braidwood Station, 2023 A-3
Intentionally left blank
APPENDIX B DATA TABLES
Intentionally left blank
TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, AND GROSS ALPHA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITIY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A(Dis)
Gr-A (Sus)
MW-2 03/28/23 524 +/- 139 MW-2 05/06/23 508 +/- 133
< 8.6
< 0.9
< 0.8
< 0.8 MW-2 08/03/23 360 +/- 135 MW-2 10/19/23 396 +/- 137 MW-4 03/28/23 427 +/- 137 MW-4 05/06/23 268 +/- 122
< 6.9
< 1.0
< 2.2
< 0.8 MW-4 08/01/23 240 +/- 129 MW-4 10/17/23 271 +/- 131 MW-5 03/30/23 441 +/- 137 MW-5 05/06/23 476 +/- 134
< 7.5
< 0.9
< 1.3
< 0.8 MW-5 08/04/23 255 +/- 129 MW-5 10/18/23 275 +/- 131 MW-6 03/28/23 1480 +/- 222 MW-6 05/05/23
< 180
< 8.1
< 0.9
< 1.4
< 2.0 MW-6 08/04/23 543 +/- 144 MW-6 10/19/23 223 +/- 127 MW-7 03/28/23 334 +/- 131 MW-7 05/06/23 269 +/- 123
< 4.8
< 0.9
< 2.8
< 1.5 MW-7 08/01/23 208 +/- 128 MW-7 10/17/23 208 +/- 128 MW-11 03/27/23
< 191 MW-11 05/05/23
< 182
< 8.7
< 0.9
< 1.4
< 0.9 MW-11 08/04/23
< 197 MW-11 10/17/23
< 193 MW-102R 03/24/23
< 191 MW-102R 05/04/23
< 187
< 6.4
< 0.9
< 0.4
< 2.0 MW-102R 08/03/23
< 195 MW-102R 10/26/23
< 199 MW-1410 03/27/23 538 +/- 141 MW-1410 05/05/23 300 +/- 133
< 9.0
< 1.0
< 1.9
< 1.0 MW-1410 08/03/23 397 +/- 136 MW-1410 10/20/23 436 +/- 139 MW-1420 03/27/23 743 +/- 156 MW-1420 05/05/23 568 +/- 147
< 7.8
< 0.8
< 3.7
< 1.4 MW-142O 08/04/23 861 +/- 171 MW-142O 10/19/23 724 +/- 158 MW-143O 03/28/23 236 +/- 128 MW-143O 05/05/23 226 +/- 129
< 3.7
< 0.8
< 1.4
< 1.0 MW-143O 08/01/23
< 196 MW-143O 10/17/23
< 198 MW-144O 03/29/23 297 +/- 130 MW-144O 05/06/23 437 +/- 141
< 4.6
< 1.0
< 0.8
< 0.9 MW-144O 08/03/23 447 +/- 139 MW-144O 10/18/23 326 +/- 132 MW-145O 03/09/23
< 186
< 8.5
< 1.0 MW-145O 06/09/23
< 187
< 7.5
< 0.8
< 0.4
< 0.7 MW-145O 08/10/23
< 195 MW-145O 10/25/23
< 195 BOLD values= Unable to meet detection limit due to high solids content B-1
TABLE 8-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, AND GROSS ALPHA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITIY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis)
Gr-A (Sus)
MW-154 03/29/23
< 192 MW-154 05/06/23
< 181
< 7.1
< 0.9
< 0.4
< 0.8 MW-154 08/02/23
< 196 MW-154 10/18/23
< 196 MW-155 03/29/23
< 189 MW-155 05/06/23
< 177
< 4.4
< 1.0
< 0.6
< 0.8 MW-155 08/02/23
< 198 MW-155 10/18/23
< 193 MW-159D 03/28/23 226 +/- 126 MW-159D 05/05/23 242 +/- 130
< 8.7
< 0.8
< 1.4
< 1.0 MW-159D 07/31/23 255 +/- 128 MW-159D 10/16/23 201 +/- 129 MW-162D 03/28/23 255 +/- 125 MW-162D 05/05/23 358 +/- 140
< 3.8
< 1.0
< 1.4
< 0.9 MW-162D 07/31/23 364 +/- 133 MW-162D 10/16/23 328 +/- 133 MW-BW-201S 03/27/23 260 +/- 122 MW-BW-201S 05/05/23 211 +/- 128
< 3.6
< 0.6
< 1.4
< 0.9 MW-BW-201S 08/01/23 263 +/- 128 MW-BW-201S 10/17/23 233 +/- 127 MW-BW-202S 03/27/23 198 +/- 122 MW-BW-202S 05/06/23
< 196
< 3.7
< 0.9
< 1.4
< 0.9 MW-BW-202S 08/01/23 205 +/- 127 MW-BW-202S 10/17/23
< 197 MW-BW-203S 03/27/23
< 182 MW-BW-203S 05/05/23
< 198
< 4.2
< 0.9
< 2.1
< 0.9 MW-BW-203S 08/01/23
< 196 MW-BW-203S 10/16/23
< 195 MW-BW-207I 03/27/23 468 +/- 134 MW-BW-207I 05/05/23 427 +/- 138
< 6.7
< 0.9
< 1.4
< 0.9 MW-BW-207I 08/01/23 423 +/- 135 MW-BW-207I 10/19/23 440 +/- 138 PS-10 03/24/23
< 194 PS-10 05/04/23
< 183
< 7.3
< 0.9
< 1.4
< 0.8 PS-10 10/26/23
< 194 PS-12 03/24/23
< 193 PS-12 05/04/23
< 188
< 9.3
< 0.9
< 1.4
< 0.8 PS-12 08/02/23
< 199 PS-12 10/26/23
< 194 RW-6 03/24/23 266 +/- 128 RW-6 05/04/23
< 184
< 5.5
< 0.9
< 1.6
< 0.8 RW-6 08/02/23 303 +/- 134 RW-6 10/26/23 267 +/- 131 VB1-1 03/29/23 196 +/- 126 VB1-1 05/06/23
< 179
< 4.8
< 0.7
< 1.4
< 0.8 VB1-1 08/02/23 646 +/- 152 VB1-1 10/18/23 356 +/- 134 VB3-2 03/24/23
< 190 VB3-2 05/04/23
< 190
< 4.8
< 0.9
< 1.3
< 0.8 8-2
TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, AND GROSS ALPHA IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITIY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A(Dis)
Gr-A (Sus)
VB3-2 08/03/23
< 187 VB3-2 10/26/23
< 197 VB5-2 03/09/23
< 184
< 2.1
< 0.8 VB5-2 06/09/23
< 188
< 5.0
< 0.9
< 0.6
< 1.8 VB5-2 08/10/23
< 192 VB5-2 10/25/23
< 196 VB6-1 03/09/23
< 188
< 5.8
< 0.8 VB6-1 06/09/23
< 178
< 3.6
< 0.8
< 0.9
< 0.7 VB6-1 08/10/23
< 195 VB6-1 10/25/23
< 196 VB7-1 03/09/23
< 183
< 2.7
< 1.0 VB7-1 06/09/23
< 186
< 3.2
< 0.7
< 1.2
< 0.7 VB7-1 08/10/23
< 196 VB7-1 10/25/23
< 192 VB8-2R 03/09/23
< 185
< 2.2
< 0.9 VB8-2R 06/09/23
< 184
< 4.7
< 0.9
< 1.0
< 0.7 VB8-2R 08/10/23
< 196 VB8-2R 10/25/23
< 183 VB9-1 03/09/23
< 182
< 2.5
< 0.7 VB9-1 06/09/23
< 181
< 6.3
< 0.8
< 1.3
< 0.7 VB9-1 08/10/23
< 197 VB9-1 10/25/23
< 194 VB10-1R 03/09/23
< 189
< 3.1
< 1.0 VB10-1R 06/09/23
< 183
< 7.5
< 0.7
< 1.2
< 0.7 VB10-1R 08/10/23
< 195 VB10-1R 10/25/23
< 190 VB11-1 03/09/23
< 192
< 4.3
< 0.9 VB11-1 06/09/23
< 184
< 5.0
< 0.9
< 1.3
< 0.8 VB11-1 08/10/23
< 193 VB11-1 10/25/23
< 193 B-3
TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION SITE DATE Be-7 K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140 MW-2 05/06/23
< 21
< 33
< 2
< 2
< 5
< 2
< 4
< 2
< 4
< 7
< 2
< 2
< 14
< 5 MW-4 05/06/23
< 16
< 26
< 2
< 2
< 4
< 2
< 3
< 2
< 3
< 5
< 2
< 2
< 11
< 4 MW-5 05/06/23
< 17
< 35
< 2
< 2
<4
< 2
<4
< 2
< 4
< 6
< 2
< 2
< 13
< 4 MW-6 05/05/23
< 19
< 20
< 2
< 2
< 4
< 2
<4
< 2
< 4
< 5
< 2
< 2
< 12
< 4 MW-7 05/06/23
< 18
< 41
< 2
< 2
< 5
< 2
<4
< 2
< 3
< 5
< 2
< 2
< 12
<4 MW-11 05/05/23
< 20
< 32
< 2
< 2
< 5
< 3
<4
< 2
< 4
< 6
< 2
< 2
< 14
< 5 MW-102R 05/04/23
< 21
< 40
< 2
< 2
< 5
< 2
< 5
< 2
< 4
< 6
<2
< 2
< 14
< 5 MW-1410 05/05/23
< 19
< 19
< 2
< 2
< 4
< 2
< 4
< 2
< 4
< 6
<2
< 2
< 12
<4 MW-1420 05/05/23
< 19 56 +/- 28
< 2
< 2
< 4
< 2
< 4
< 2
< 3
< 6
<2
< 2
< 13
< 4 MW-143D 05/05/23
< 18
< 18
< 2
< 2
< 4
< 2
< 4
< 2
< 4
< 5
<2
< 2
< 13
<4 MW-144D 05/06/23
< 20
< 36
< 2
< 2
< 4
< 2
< 4
< 2
< 4
< 6
< 2
< 2
< 13
< 4 MW-145D 06/09/23
< 13
< 32
< 1
< 2
< 3
< 2
< 3
< 2
< 3
< 3
< 2
< 2
< 7
< 3 MW-154 05/06/23
< 19
< 34
< 2
< 2
< 4
< 2
< 4
< 2
< 4
< 6
< 2
< 2
< 13
< 4 C:J MW-155 05/06/23
< 16
< 38
< 2
< 2
< 4
< 2
< 4
< 2
< 3
< 5
< 2
< 2
< 11
< 5 I
MW-159D 05/05/23
< 18
< 20
< 2
< 2
< 5
< 2
< 4
< 2
<4
< 5
< 2
< 2
< 13
< 4
~
MW-162D 05/05/23
< 20
< 44
< 2
< 2
< 4
< 2
< 4
< 2
< 4
< 6
< 2
< 2
< 13
< 4 MW-BW-201S 05/05/23
< 15
< 14
<2
< 2
< 4
< 2
< 3
<2
< 3
< 5
< 2
< 2
< 11
< 4 MW-BW-202S 05/06/23
< 17
< 16
< 2
< 2
< 4
< 2
< 3
<2
< 3
< 5
< 2
< 2
< 12
< 4 MW-BW-203S 05/05/23
< 15
< 15
<2
< 2
< 3
< 2
< 3
<2
< 3
< 5
< 2
< 2
< 10
< 3 MW-BW-207I 05/05/23
< 16
< 19
< 2
< 2
< 4
< 2
<4
< 2
< 3
<4
< 2
< 2
< 11
< 4 PS-10 05/04/23
< 14
< 28
< 2
< 1
< 3
< 2
< 3
< 2
< 3
< 4
< 1
< 2
< 8
< 3 PS-12 05/04/23
< 20
< 21
<2
< 2
< 5
< 3
< 5
< 2
< 4
< 6
< 2
< 2
< 14
< 5 RW-6 05/04/23
< 15
< 13
< 2
< 2
< 3
< 2
< 3
< 2
< 3
< 4
< 2
< 2
< 11
<4 VB1-1 05/06/23
< 18
< 40
< 2
< 2
< 4
< 2
<4
< 2
< 4
< 6
< 2
< 2
< 14
<4 VB3-2 05/04/23
< 19
< 54
< 2
< 2
< 5
< 3
<4
< 2
< 4
< 6
< 3
< 2
< 14
< 4 VB5-2 06/09/23
< 15
< 15
< 2
< 2
< 3
< 2
< 3
< 2
< 3
< 3
< 2
< 2
< 8
< 3 VB6-1 06/09/23
< 18
< 38
< 2
< 2
< 4
< 2
< 4
< 2
< 3
< 3
< 2
< 2
< 9
< 3 VB7-1 06/09/23
< 16
< 17
< 2
< 2
< 4
< 2
< 4
< 2
< 3
< 3
< 2
< 2
< 8
< 3 VB8-2R 06/09/23
< 18
< 38
< 2
< 2
< 4
< 2
< 5
< 2
< 4
< 3
< 3
< 2
< 9
< 3 VB9-1 06/09/23
< 15
< 16
< 2
< 2
< 3
< 2
< 3
< 2
< 3
< 3
< 2
< 2
< 8
< 2 VB10-1 R 06/09/23
< 18
< 44
< 2
< 2
< 4
< 2
< 4
< 2
< 3
< 3
< 2
< 2
< 9
< 3 VB11-1 06/09/23
< 23
< 51
< 3
< 3
< 6
< 3
< 6
< 3
< 5
< 3
< 3
< 3
< 11
< 4
c:,
I u, TABLE B-1.3 CONCENTRATIONS OF HARD TO DETECTS IN GROUNDWATER SAMPLES AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 No groundwater samples collected or analyzed for hard to detects in 2023
TABLE B-I1.1 OJ I en TABLE B-11.2 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA No surface water samples collected or analyzed for tritium in 2023 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF BRAIDWOOD STATION, 2023 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA No surface water samples collected or analyzed for gamma emitters in 2023