ML18152A869

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Independent Spent Fuel Storage Installation (ISFSI) - Annual Radiological Environmental Operating Report 75 January 1, 2017 Through December 31, 2017
ML18152A869
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 05/31/2018
From:
Teledyne Brown Engineering Environmental Services
To:
Office of Nuclear Material Safety and Safeguards
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Download: ML18152A869 (138)


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Docket No:

50-277 50-278 PEACH BOTTOM ATOMIC POWER STATION UNITS 2 and 3 Annual Radiological Environmental Operating Report Report No. 75 January 1 through December 31, 2017 Prepared By Teledyne Brown Engineering Environmental Services Exelon Generation@

Peach Bottom Atomic Power Station Delta, PA 17314 May 2018

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TABLE OF CONTENTS I. Executive Summary........................................................................................................... 1 II. Introduction........................................................................................................................ 3 A. Objectives.............................................................................................................. 3 B. Implementation...................................................................................................... 3 C. Radiation and Radioactivity.................................................................................. 4 D. Sources of Radiation............................................................................................. 4 Ill. Program Description........................................................................................................ 6 A. Sample Collection................................................................................................. 6 B. Sample Analysis.................................................................................................... 9 C. Data Interpretation................................................................................................ 9 D. Program Exceptions............................................................................................ 11 IV. Program Changes......................................................................................................... 12 V. Results and Discussion.................................................................................................. 12 A. Aquatic Environment........................................................................................... 12 B. Atmospheric Environment................................................................................... 15 C. Terrestrial............................................................................................................ 16 D. Ambient Gamma Radiation................................................................................. 17 E. Independent Spent Fuel Storage Installation..................................................... 17 F. Land Use Census................................................................................................ 18 G. Errata Data.......................................................................................................... 19 H. Secondary Laboratory Analysis.......................................................................... 19 I. Summary of Results - Inter-laboratory Comparison Program............................ 19 V. References...................................................................................................................... 20

Appendix A Figures Figure A-1 Tables Table A-1 Appendix B Tables Table B-1 Table B-2 Figures Appendices Radiological Environmental Monitoring Report Summary Total REMP Analyses for 2017 and Specific Nuclide Analyses with Activity Greater Than MDA Radiological Environmental Monitoring Program Annual Summary for the Peach Bottom Atomic Power Station, 2017 Sample Designation and Locations Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2017 Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Peach Bottom Atomic Power Station, 2017 Figure B-1 Environmental Sampling Locations Within One Mile of the Peach Bottom Atomic Power Station, 2017 Figure B-2 Environmental Sampling Locations Between One and Approximately Five Miles of the Peach Bottom Atomic Power Station, 2017 Figure B-3 Environmental Sampling Locations Greater than Five Miles from the Peach Bottom Atomic Power Station, 2017 Appendix C Data Tables and Figures Primary Laboratory Tables Table C-1.1 Table C-1.2 Table C-1.3 Concentrations of Tritium in Surface Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Concentrations of Low Level 1-131 in Surface Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Concentrations of Gamma Emitters in Surface Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 ii

Table C-11.1 Concentrations of Gross Beta in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-11.2 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-11.3 Concentrations of Low Level 1-131 in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-11.4 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-111.1 Concentrations of Gamma Emitters in Predator and Bottom Feeder (Fish) Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-IV.1 Concentrations of Gamma Emitters in Sediment Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-V.1 Concentrations of Gross Beta in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-V.2 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-Vl.1 Concentrations of 1-131 in Air Iodine Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-Vll.1 Concentrations of Low Level 1-131 in Milk Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-Vll.2 Concentrations of Gamma Emitters in Milk Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-Vlll.1 Concentrations of Gamma Emitters in Food Product Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Table C-IX.1 Quarterly OSLO Results for Peach Bottom Atomic Power Station, 2017 Table C-IX.2 Mean Quarterly OSLO Results for the Site Boundary, Intermediate, and Control Locations for Peach Bottom Atomic Power Station, 2017 Table C-IX.3 Summary of the Ambient Dosimetry Program for Peach Bottom Atomic Power Station, 2017 Figures Figure C-1 Figure C-2 Figure C-3 Monthly Total Gross Beta Concentrations in Drinking Water Samples Collected in the Vicinity of PBAPS, 2017 MDC Results for Fish Sampling Collected in the Vicinity of PBAPS, 2017 Semi-Annual Cs-137 Concentrations in Sediment Samples Collected in the Vicinity of PBAPS, 2017 iii

Figure C-4 Figure C-5 Figure C-6 Figure C-7 Appendix D Tables Table D-1.1 Table D-1.2 Table D-1.3 Table D-1.4 Table D-11.1 Table D-11.2 Table D-111.1 Figures Figure D-1 Figure D-2 Mean Weekly Gross Beta Concentrations in Air Particulate Samples Collected in the Vicinity of PBAPS, 2017 Average Monthly MDC Results for REMP Milk Samples Collected in the Vicinity of PBAPS, 2017 Mean Quarterly Ambient Gamma Radiation Levels in the Vicinity of PBAPS, 1973 - 2017 ISFSI and Control OSLO Results Compared to Pre-Operation Historical Values Data Tables and Figures QC Laboratory Concentrations of Gross Beta Soluble in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Concentrations of Tritium in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Concentrations of 1-131 in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Concentrations of Gamma Emitters in Drinking Water Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Concentrations of Gross Beta In Air Particulate and 1-131 in Air Iodine Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Concentrations of Gamma Emitters in Air Particulate Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Concentrations of 1-131 and Gamma Emitters in Milk Samples Collected in the Vicinity of Peach Bottom Atomic Power Station, 2017 Comparison of Monthly Total Gross Beta Concentrations in Drinking Water Samples From Station 4L Analyzed by the Primary and QC Laboratories, 2017 Comparison of Weekly Gross Beta Concentrations from Co-Located Air Particulate Locations (1Z/1A) Analyzed by the Primary and QC Laboratories, 2017 iv

Appendix E Tables Table E-1 Table E-2 Table E-3 Table E-4 Table E-5 Table E-6 Table E-7 Appendix F Appendix G Inter-Laboratory Comparison Program Acceptance Criteria and Results Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services, 2017 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering Environmental Services, 2017 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services, 2017 Analytics Environmental Radioactivity Cross Check Program Exelon Industrial Services, 2017 ERA Environmental Radioactivity Cross Check Program Exelon Industrial Services, 2017 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

GEL Laboratories - H-3 Only, 2017 ERA Environmental Radioactivity Cross Check Program GEL Laboratories - H-3 Only, 2017 Errata Data Annual Radiological Groundwater Protection Program Report (ARGPPR)

V

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I.

Executive Summary The 2017 Annual Radiological Environmental Operating Report (AREOR) describes the results of the Radiological Environmental Monitoring Program (REMP) conducted for Peach Bottom Atomic Power Station (PBAPS) by Exelon Nuclear and covers the period of 1 January 2017 through 31 December 2017.

Throughout that time period, 1,288 analyses were performed on 996 samples. In assessing all the data gathered for this report and comparing the results with preoperational data, it was evident that the operation of PBAPS had no adverse radiological impact on the environment.

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

Aquatic:

Surface water samples were analyzed for concentrations of lodine-131 (1-131), tritium (H-3) and gamma-emitting nuclides. All nuclides were below minimum detectable activity.

Drinking water samples were analyzed for concentrations of gross beta, 1-131, H-3, and gamma-emitting nuclides. All nuclides were below minimum detectable activity. Any gross beta activity detected was not above the investigation level (15 pCi/L) and therefore, likely due to background radiation.

Fish and sediment samples were analyzed for concentrations of gamma-emitting nuclides. Fish samples showed no detectable fission or activation products, while Cesium-137 (Cs-137) activity was found at one of three sediment locations in the second sample of the year. The level of Cs-137 was well below the investigation level of 1000 pCi/kg (dry).

Terrestrial:

Milk samples were analyzed for low level concentrations of 1-131 and gamma-emitting nuclides. Food product samples were analyzed for concentrations of gamma-emitting nuclides. All power production nuclides were below minimum detectable activity.

Airborne:

Air particulates and air iodine samples were analyzed for gross beta, gamma-emitting nuclides, and low level 1-131. All nuclides were below minimum detectable activity. The gross beta results were less than the investigation level (1.60E-01 pCi/m3) and there were no notable differences between control and indicator locations.

Ambient Radiation:

Ambient gamma radiation levels were measured quarterly.

Average measurements were consistent with those measured in previous years, indicating that the Independent Spent Fuel Storage Installation (ISFSI) and plant operations had no measurable impact to the environs.

In 2017, the doses from both liquid and gaseous effluents were conservatively calculated for the Maximum Exposed Member of the Public due to PBAPS Operation. Doses calculated were well below all Offsite Dose Calculations Manual (ODCM) limits. The results of those calculations were as follows:

Location

% of Applicable Estimated Age Distance Direction Applicable Effluent Organ Dose Group (meters)

(toward)

Limit Limit Unit Noble Gas Gamma-2.21E-01 All 1.10E+03 SSE 1.11 E+OO 2.00E+01 mrad Air Dose Noble Gas Beta -Air 1.51 E-01 All 1.10E+03 SSE 3.78E-01 4.00E+01 mrad Dose Noble Gas Total Body 2.14E-01 All 1.10E+03 SSE 2.14E+OO 1.00E+01 mrem (gamma)

Noble Gas Skin (Beta) 2.79E-01 All 1.10E+03 SSE 9.30E-01 3.00E+01 mrem Gaseous

Iodine, Particulate, Bone 5.90E-01 Child 1.10E+03 SSE 1.97E+OO 3.00E+01 mrem Carbon-14

& Tritium Gaseous

Iodine, Thyroid 3.09E-03 Infant 1.10E+03 SSE 1.03E-02 3.00E+01 mrem Particulate,

& Tritium Liquid Total Body 1.03E-04 Child 1.71 E-03 6.00E+OO mrem (gamma)

Site Boundary Liquid GI-LLI 1.67E-04 Child 8.34E-03 2.00E+01 mrem Direct Total Body 0.00E+OO All 1.15E+03 SSE 0.00E+OO 2.20E+01 Radiation mrem 40 CFR Part 190 Compliance Location

% of Applicable Estimated Age Distance Direction Applicable Effluent Organ Dose Group

{meters)

(toward)

Limit Limit Unit Total Dose Total Body 2.14E-01 All 1.15E+03 SSE 8.56E-01 2.50E+01 mrem Total Dose Thyroid 3.09E-03 All 1.15E+03 SSE 4.12E-03 7.50E+01 mrem Total Dose Bone 5.90E-01 All 1.15E+03 SSE 2.36E+OO 2.50E+01 mrem Total Dose Total Body 2.14E-01 All 1.15E+03 SSE 7.14E+OO 3.00E+OO mrem Total Dose Bone 5.90E-01 All 1.15E+03 SSE 1.97E+01 3.00E+OO mrem Total Dose Thyroid 2.24E-01 All 1.15E+03 SSE 4.08E-01 5.50E+01 mrem II.

Introduction PBAPS is located along the Susquehanna River between Holtwood and Conowingo Dams in Peach Bottom Township, York County, Pennsylvania.

PBAPS Units 2 and 3 are boiling water reactors, each with a rated full-power output of approximately 4,016 MWth while Unit 1 is a decommissioned 115 MWth High Temperature, Gas-cooled Reactor (HTGR). The initial environmental monitoring program began 5 February 1966. A summary of the Unit 1 preoperational monitoring program was presented in a previous report (1l.

Preoperational summary reports (2l(3l for Units 2 and 3 have been previously issued and summarize the results of all analyses performed on samples collected from 5 February 1966 through 8 August 1973.

The sampling and analysis requirements are contained in the PBAPS ODCM and the ODCM Specifications (ODCMS). This AREOR covers those analyses performed by Teledyne Brown Engineering (TSE), Landauer, Exelon Industrial Services (EIS) and GEL Laboratories on samples collected during the period 01 January 2017 through 31 December 2017.

A.

Objectives The objectives of the REMP are:

1.

Provide data on measurable levels of radiation and radioactive materials in the publicly-used environs;

2.

Evaluate the principal pathways of exposure to the public as described in the ODCM and determine the relationship between quantities of radioactive material released from the plant and resultant radiation doses to members of the public.

B.

Implementation of the Objectives 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 plant operation to assess station radiological effects (if any) on man and the environment.

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

C.

Radiation and Radioactivity All matter is made of atoms. An atom is the smallest part into which matter can be broken down and still maintain all its chemical properties.

Nuclear radiation is energy, in the form of waves or particles that is given off by unstable, radioactive atoms. Radioactive material exists naturally and has always been a part of our environment. The earth's crust, for example, contains radioactive uranium, radium, thorium and potassium.

Some radioactivity is a result of nuclear weapons testing. Examples of radioactive fallout that is normally present in environmental samples are Cs-137 and Strontium-90 (Sr-90). Some examples of radioactive materials released from a nuclear power plant are Cs-137, 1-131, Sr-90 and Cobalt-60 (Co-60).

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

That is why radioactivity in the environment is measured in picocuries.

One picocurie is equal to 1.00E-12 (one trillionth) of a curie.

D.

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

Table 1 Radiation Sources and Corresponding Doses (4)

NATURAL MAN-MADE Source Radiation Dose Source Radiation Dose (millirem/year)

(millirem/year)

Internal, inhalation <a>

228 Medical (bl 300 External, space 33 Consumer <c>

13 Internal, ingestion 29 lndustrial<dl 0.3 External, terrestrial 21 Occupational 0.5 Weapons Fallout

<1 Nuclear Power Plants

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

Additionally, natural radioactivity is in our body, in the food we eat (about 29 millirem/yr), in the ground we walk on (about 21 millirem/yr), and in the air we breathe (about 228 millirem/yr). One percent of all potassium in nature is the radioactive Potassium-40 (K-40). The majority of a person's annual dose results from exposure to radon and thoron in the air we breathe. These gases and their radioactive decay products arise from the decay of naturally occurring uranium, thorium and radium in soil and in building products such as brick, stone and concrete. Radon and thoron levels vary greatly with location, primarily due to changes in the concentration of uranium and thorium in the soil. Residents at some locations in Colorado, New York, Pennsylvania, and New Jersey have a higher annual dose as a result of higher levels of radon/thoron gases in these areas. In total, these various sources of naturally occurring radiation and radioactivity contribute to a total dose of about 311 mrem per year.

In addition to natural radiation, we are normally exposed to radiation from a number of man-made sources. The single largest dose from man-made sources result from therapeutic and diagnostic applications of x-rays and radiopharmaceuticals. The annual dose to an individual in the U.S. from medical and dental exposure is about 300 mrem.

Consumer products, such as televisions and smoke detectors, contribute about 13 mrem/yr. Much smaller doses result from weapons fallout and nuclear power plants (less than 1 mrem/yr). Typically, the average person in the United States receives about 314 mrem per year from man-made sources.

Some of the natural radioactive nuclides discussed above were identified in PBAPS REMP samples. The typical power production radionuclides, described in the next sections, were not identified and thus it can be concluded that PBAPS did not impact man and the environs during the 2017 operating period.

Ill.

Program Description A.

Sample Collection Normandeau Associates Inc., (NAI) contracted by Exelon Industrial Services (EIS) collected REMP samples for PBAPS Exelon Nuclear. This section describes the collection methods used by NAI/ESI to obtain environmental samples for the PBAPS REM P in 2017. Sample locations and descriptions can be found in Table B-1 and Figures B-1 through B-3, Appendix B. The collection procedures used by NAI/EIS are listed in Table B-2, Appendix B.

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

Surface water is sampled from two locations as prescribed by the ODCM:

one upstream (1 LL) and one downstream (1 MM) of the plant discharge canal. Drinking water is sampled from a control location (61) and up to 3 locations nearest to public drinking water supplies. Two locations are identified in the ODCM as the closest drinking water supplies, the Conowingo Dam (4L) and Chester Water Authority (13B). All samples were collected weekly by automatic sampling equipment or as grab samples. Weekly samples from each location were composited into two one-gallon monthly samples for analysis. A separate quarterly composite of the monthly samples was also collected.

Fish sample collection locations required by the ODCM are in an area close to the discharge of PBAPS (4) and a control location, unaffected by plant discharge (6). These samples are comprised of the flesh of commercially and recreationally important species specific to the environs around PBAPS. Fish samples were collected semiannually from two groups: Bottom Feeder (channel catfish, flathead catfish, carp, and shorthead redhorse) and Predator (smallmouth bass, largemouth bass, and walleye}, as these are the types of fish commonly collected by the public from the river around PBAPS. The total weight of fish flesh was approximately 1000 grams. The samples were preserved on ice for shipping to the laboratory.

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

Terrestrial Environment The terrestrial environment was evaluated by performing radiological analyses on milk and food product samples. The ODCM requires milk samples at three locations with the highest dose potential, within three miles of PBAPS and one sample at a control location. The REMP meets these requirements and also samples extra locations. Milk samples were collected biweekly at five locations (J, R, S, U, X and V; Vis the control) from April through November and monthly from December through March.

Six additional locations (C, D, E, L, P and W; C and E are the controls) were sampled quarterly. Two-gallon samples were collected directly from the bulk tank at each location, preserved with sodium bisulfite, and shipped promptly to the laboratory.

The ODCM only requires food products be collected from the area of highest dose impact and a control location, if milk sampling is unavailable in those locations. Food product samples, comprised of annual broad green leaf vegetation, were collected monthly at five locations (1 C, 2B, 1 B, X, 30 and 55; 55 is the control) in June through September. Typically, the

'planting' season starts late April/early May, with the plants gaining sufficient mass for collection in late June or July. Approximately 1000 g of unwashed samples were collected in plastic bags and shipped promptly to the laboratory, but sample size varied on garden production.

Airborne Environment The airborne atmospheric environment was evaluated by performing radiological analyses on air particulate and radioiodine samples. The ODCM requires sampling from five locations, including three site boundary locations with greatest dose impact, one location within a local community with the highest dose impact, and one control location. Air particulate and radioiodine samples were collected and analyzed weekly from five locations (1 B, 1 C, 1 Z/1 A, 3A and 5H2; 5H2 is the control, 1A is the duplicate QA location), using a vacuum pump with charcoal cartridges and glass fiber filters attached. The pumps were run continuously and sampled air at the rate of approximately 1 cubic foot per minute to obtain a minimum total volume of 280 cubic meters. The weekly filters were composited for a quarterly sample.

Ambient Gamma Radiation The ambient gamma radiation in the areas surrounding PBAPS is measured using dosimeters, which are exposed to ambient radiation in the field and exchanged quarterly. The ODCM requires at least 40 routine monitoring stations with two or more dosimeters at each location for continuous monitoring. The REMP contains 48 dosimeter monitoring locations.

Optically-Stimulated Luminescent Dosimeters (OSLO) replaced the Thermo-Luminescent Dosimeter (TLD) starting in 2012. However, PBAPS continued using TLD in addition to OSLO to compare the two technologies. The primary data reported after 2012 is from OSLO. Additionally, only the "gross" OSLO exposure (i.e. no background or control subtraction) is reported ; prior to 2012, "net' TLD exposures data were reported. This explains the increase in ambient radiation levels displayed in Figure C-6.

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

A site boundary ring, consisting of 19 locations (1A, 1 B, 1 C, 1 D, 1E, 1F, 1G, 1H, 11, 1J, 1K, 1L, 1M, 1NN, 1P, 1Q, 1R, 2, and 40),

near and within the site perimeter representing fence post doses (i.e., at locations where the doses will be potentially greater than maximum annual off-site doses).

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

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

The specific dosimeter locations were determined by the following criteria:

1.

The presence of relatively dense population, nearby residences, schools, and control locations;

2.

Site meteorological data taking into account distance and elevation for each of the sixteen 22.5 degree sectors around the site, where estimated annual dose from PBAPS, if any, would be more significant;

3.

And on hills free from local obstructions and within sight of the main stack and/or reactor building roof vents (where practical).

Each dosimetry location in the environment has 2 OSLO and 2 TLD dosimeters which were enclosed in plastic as a moisture barrier.

Dosimeter housing (Formica boxes and polyethylene jars) were replaced with mesh tubes, aligned horizontally and facing the plant in the same locations. Dosimeters were placed vertically in the tubes so that no dosimeter was covered by another dosimeter and all dosimeters properly faced the plant.

B.

Sample Analysis This section describes the analytical methods used by TSE, EIS and GEL Labs to analyze the environmental samples for radioactivity. The analytical procedures used by the laboratories are listed in Table B-2, Appendix B.

The required ODCM analyses include:

1. Concentrations of beta emitters in drinking water and air particulates;
2. Concentrations of gamma-emitting nuclides in surface and drinking water, air particulates, milk, fish, sediment and food products;
3. Concentrations of tritium in surface and drinking water;
4. Concentrations of 1-131 in air, milk, and food products. Although not required by the ODCM, 1-131 is also analyzed in drinking and surface water;
5. Ambient gamma radiation levels at various site environs.

C.

Data Interpretation The radiological environmental and direct radiation data collected prior to PBAPS becoming operational was used as a baseline with which the 2017 operational data were compared. In addition, data were compared to previous years' operational data for consistency and trending. Several factors are important in the interpretation of the data.

1.

Lower Limit of Detection and Minimum Detectable Concentration The lower limit of detection (LLD) is defined as the smallest concentration of radioactive material in a sample that would yield a detectable net count (above background) that would only have a 5% probability of falsely concluding that a blank observation represents a "real" signal. The LLD is intended as a "before-the-fact" (a prion) estimate of a system (including instrumentation, procedure and sample type) and not as an "after-the-fact" (a

2.

posterior,) measurement. All analyses are designed to achieve the required detection limits for environmental samples, as described in the PBAPS ODCM.

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

Net Activity Calculation and Reporting of Results Net activity for a sample is calculated by subtracting background activity from the sample activity. Since the REMP measures extremely small changes in radioactivity in the environment, background variations can result in sample activity being lower than the background activity causing a negative number. MDC is reported in all cases where positive activity was not detected. In previous years, when net activity was reported (and not the MDC), a lower baseline is seen in trending compared to 201 7 results.

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

For surface and drinking water, twelve nuclides, Manganese-54 (Mn-54), Cobalt-58 (Co-58), lron-59 (Fe-59), Cobalt-60 (Co-60), Zinc-65 (Zn-65), Zirconium-95 (Zr-95), Niobium-95 (Nb-95), 1-131, Cesium-134 (Cs-134), Cs-137, Barium-140 (Ba-140), and Lanthanum-140 (La-140) were reported.

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

For sediment, seven nuclides, K-40, Mn-54, Co-58, Co-60, 1-131, Cs-134 and Cs-137 were reported.

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

For milk, six nuclides, K-40, 1-131, Cs-134, Cs-137, Ba-140 and La-140 were reported.

For food products, eight nuclides, Be-7, K-40, Mn-54, Co-58, Co-60, 1-131, Cs-134 and Cs-137 were reported.

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

D.

Program Exceptions For 2017 the PBAPS REMP had a sample collection recovery rate of

> 99%. The exceptions to this program are listed below:

Sample Type Dosimeters Food Products Sample Type Dosimeters AP/Al*

AP/Al*

Food Products Table 2 Location Code 24, 26, 45 1 Band X Table 3 Location Code 24 1P 1C 18 18

  • APIA/ = Air Particulates/Air Iodine LIST OF SAMPLE ANOMALIES Collection Date 102017 302017 Reason Substation construction led to relocation of dosimeters Garden 1 B unable to sustain production; samples collected at a garden co-located with Milk Farm X LIST OF MISSING SAMPLES Collection Date 102017 07/13/17 -

07/20/17 08/17/17 -

08/24/17 July 2017 Aug-Sept 2017 Reason All OSLO and TLD missing One TLD missing Air sample pump found tripped due to summer storms causing invalid sample volume Air sample pump found tripped due to summer storms causing invalid sample volume Only 2/3 samples available due to predation No sample collected due to predation Each program exception was reviewed to understand the causes of the program exception. Sampling and maintenance errors were reviewed with the personnel involved to prevent a recurrence. Occasional equipment breakdowns and power outages were unavoidable.

IV.

Program Changes The REMP contractor was changed from NAI to EIS at the beginning of 2017.

EIS procedures were approved and implemented for collecting drinking/surface water, vegetation, milk, dosimeters, and air samples. NAI was contracted to continue collecting PB REMP samples, but used the EIS procedures described.

NAI procedures were still used to collect fish and sediment samples. EIS laboratory analyzed duplicate QA samples for milk, air, and surface water. GEL laboratory analyzed duplicate QA water samples for tritium.

Garden 1 B was removed from the ODCM and Milk Farm X was added to the ODCM. Milk Farm X has been a part of the REMP since 2016 and is in the same meteorological sector as Garden 1 B. Milk samples are preferred over food products, as it is a direct measurement of the most significant dose pathway, as described in the ODCM.

Dosimeter locations for stations 24, 26, and 45 were moved due to construction occurring at the beginning of the year. The new locations were still within the same meteorological sectors, but the distance to the plant vent stacks had to be updated. The ODCM was updated to include the new distances for these station locations.

V.

Results and Discussion Appendix A contains a summary of all 2017 PBAPS REMP results which meets the requirement of the Table 3 of NUREG 1302 'Branch Technical Position Paper'5. Table A-1 lists results by each sample media and analyses performed.

The total number of analyses performed, required LLD, the number of positive results for each indicator and control location are listed. From the positive results identified (greater than the MDA) the mean value, range and station locations with highest annual mean are listed. Commonly identified nuclides are gross beta, K-40, and Be-7. A graphical representation is provided in Figure A-1.

A.

Aquatic Environment

1.

Surface Water A summary of the 2017 analysis results for surface water samples from stations 1 LL and 1 MM are listed below:

Tritium Quarterly samples were analyzed for tritium activity (Table C-1.1,

Appendix C). No tritium activity was detected and the required LLD was met.

2.

Iodine Monthly samples were analyzed for low level 1-131. All results were less than the MDC and the required LLD was met. (Table C-1.2, Appendix C).

Gamma Spectrometry Monthly samples were analyzed for gamma-emitting nuclides (Table C-1.3, Appendix C). All nuclides were less than the MDC and all required LLDs were met.

Drinking Water The results from the drinking water samples collected in 2017 from stations 13B, 4L and 61 are described below:

Gross Beta Samples from all locations were analyzed monthly for concentrations of gross beta activity (Table C-11.1 and Figure C-1 Appendix C). Gross beta activity was detected in 24 of 36 samples.

The values ranged from 1.9 to 4.6 pCi/L with a mean value of 2.8 +/-

1. 7 pCi/L. The mean detected gross beta activity was less than the required LLD (4 pCi/L) which indicates the sensitivity of the measurement technique. The detectable gross beta activity was well below the procedural investigation level (15 pCi/L).

Concentrations detected were generally below those detected in previous years.

Tritium Monthly samples were composited quarterly and analyzed for tritium activity (Table C-11.2, Appendix C). Tritium activity was not detected in any samples and the required LLD was met.

Iodine Monthly samples were analyzed for low level 1-131 (Table C-11.3, Appendix C). All results were less than the MDC and the required LLD was met.

Gamma Spectrometry Samples from the three locations were analyzed monthly for gamma-emitting nuclides (Table C-11.4, Appendix C). All nuclides were less than the MDC and all required LLDs were met.

L

3.

Fish Results from fish samples collected at locations 4 and 6 in 2017 are described below:

Gamma Spectrometry The edible portions of the collected fish samples were analyzed semiannually for gamma-emitting nuclides (Table C-111.1,

Appendix C). Naturally occurring K-40 was found at all stations and ranged from 2,152 to 4,016 pCi/kg (wet), with a mean value of 3,068 +/- 1,315 pCi/kg (wet), consistent with levels detected in previous years. No fission or activation products, due to plant operations were found in 2017 and all required LLDs were met.

Figure C-2, Appendix C, displays the various gamma radionuclide MDC results for locations 4 and 6, based on the type of fish collected. All MDC results are less than the nuclide specific LLDs.

The last 15-year average Cs-137 MDC is also shown to trend 2017 results with historical results. There have been no detectable levels of Cs-137 in fish since 1983.

4.

Sediment Sediment samples were collected at locations 6F, 4J, and 4T and the results are described below:

Gamma Spectrometry Sediment samples were analyzed for gamma-emitting nuclides (Table C-IV.1, Appendix C). K-40 was found in all locations and ranged from 9,080 to 21,950 pCi/kg (dry) with a mean value of 14,227 +/- 9,985 pCi/kg (dry). The fission product Cs-137 was detected in 1 of the 6 samples at a concentration of 187 pCi/kg (dry), which is just above the required LLD of 180 pCi/kg (dry). The positive result was less than the procedural investigation level of 1000 pCi/kg (dry). 2017 Cs-137 results are plotted against the average value from the last 15 years.

Locations 4J and 6F are less than the historical average, whereas location 4T was not, indicating the presence of background interferences at that location. There was not enough Cs-137 to indicate that the positive samples results were a consequence of plant operation. Historical levels of Cs-137 are shown in Figure C-3, Appendix C. No other fission or activation products were found and all LLDs were met.

B.

Atmospheric Environment

1.

Airborne Particulates Continuous air particulate samples were collected from five locations. The five locations were separated into three groups:

Group I represents locations within the PBAPS site boundary (1 B, 1C and 1Z/1A), Group II represents the location of the closest local community (3A) and Group Ill represents the control location at a remote distance from PBAPS (5H2). 1A results will be discussed in Appendix D. The results from samples collected in 2017 are described below:

Gross Beta Weekly samples were analyzed for concentrations of beta-emitters (Tables C-V.1, Appendix C). Detectable gross beta activity was observed at all locations. The results from Group I ranged from 8E-3 to 34E-3 pCi/m3, with a mean of 19E-3 +/- 11 E-3 pCi/m3. The results from Group II ranged from 7E-3 to 37E-3 pCi/m3 with a mean of 22E-3 +/- 11 E-3 pCi/m3. The results from the Group Ill ranged from 6E-3 to 22E-3 pCi/m3 with a mean of 15E-3 +/- BE-3 pCi/m3.

The mean value from all locations are the same within error, indicating the gross beta activity is not a result of the operation of PBAPS, as shown below in Figure C-4, Appendix C. In addition, a comparison of the 2017 air particulate data with historical data indicates a decreasing trend in gross beta activity since initial operation of the plant (Figure C-4, Appendix C).

Gamma Spectrometry Quarterly samples were analyzed for gamma-emitting nuclides (Table C-V.2, Appendix C). Naturally-occurring Be-7 activity, from cosmic rays, was detected in all 20 samples. The values ranged from 49E-3 to 125E-3 pCi/m3, with a mean value of 89E-3 +/- 48E-3pCi/m3. All power production nuclides were less than the MDC and all required LLDs were met.

2.

Airborne Iodine Weekly samples were also analyzed for low level 1-131 (Table C-Vl.1, Appendix C). All results were less than the MDC for 1-131 and the required LLD was met.

C.

Terrestrial

1.

Milk

2.

During 2017, 156 milk samples were collected and analyzed from the following locations: D, J, R, L, P, S, U, W, X (indicators) and C, E, V (controls). The results are described below:

lodine-131 Milk samples from all locations were analyzed for concentrations of 1-131 (Tables C-Vll.1, Appendix C). Figure C-5 displays the 2017 milk 1-131 results for both indicator and control locations.

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

Gamma Spectrometry Milk samples from all locations were analyzed for concentrations of gamma-emitting nuclides (Table C-Vll.2, Appendix C). Naturally-occurring K-40 was found in all samples and ranged from 889 to 1,712 pCi/1, with a mean value of 1265 +/- 236 pCi/L. All other nuclides were less than the MDC and all required LLDs were met.

2017 Cs-134 and Cs-137 MDC results are plotted in Figure C-5 with the required LLDs and Reporting Levels. All results are much less than the LLDs and reporting levels. The last 15-year average MDC of Cs-137 in milk is also plotted in Figure C-5, Appendix C.

There is no statistical difference between the 2017 MDC Cs-137 results and the 15-year historical MDC.

Food Products Throughout 2017, 59 samples of various green leafy vegetation (kale, cabbage, collard greens, broccoli, etc.) were collected and analyzed for concentrations of gamma-emitting nuclides (Table C-Vlll.1, Appendix C). The results are discussed below:

.Gamma Spectrometry Naturally-occurring Be-7 activity was found in 25 of 59 samples and ranged from 189 to 4,232 pCi/kg (wet), with a mean of 1154 +/-

2477 pCi/kg (wet). Also, naturally occurring K-40 activity was found in all samples and ranged from 982 to 5,490 pCi/kg (wet),

with a mean of 3195 +/- 2,491 pCi/kg (wet). All power production nuclides were less than the MDC and all required LLDs were met.

D.

Ambient Gamma Radiation Results of OSLO measurements are listed in Tables C-IX.1 through C-IX.3 and Figure C-6, Appendix C.

The mean gross OSLO measurement for all indicator locations was 8.9 +/-

3.0 mRem per standard month, with a range of 5.2 to 13.4 mRem per standard month. The period mean for the control locations (16, 18, 19 and

24) was 8.2 +/- 2.5 mRem per standard month, which is the same, within error, of the OSLDs located within the site boundary and intermediate distances. These results indicate PBAPS operation had no impact on the ambient gamma radiation levels in the areas surrounding PBAPS. This trend has occurred throughout the history of the plant and can be seen in Figure C-6, Appendix C. The increase in ambient radiation reading in 2012, seen in Figure C-6, was due to the change from TLD to OSLO monitoring and the reporting of gross rather than net measurement values.

E.

Independent Spent Fuel Storage Installation (ISFSI)

ISFSI was initiated in June 2000. Six new casks were added to the ISFSI pad in 2017. Site boundary OSLDs which measure the ambient gamma radiation closest to ISFSI are locations 1A, 1D, 1M, 1P, 1Q, 1R, with 1 R being the closest. Location 28 is the nearest real resident which could be impacted by ISFSI. Location 1 R, showed a general increase of 1 to 3 mRem per standard month from pre-lSFSI loading (Figure C-7, Appendix C). Location 28, follows closely with values from locations 1A, 1 D, and controls, indicating no impact from ISFSI on nearest real resident. Data from location 28 is used to demonstrate compliance to both 40CFR190 and 10CFR72.104 limits. All radiation levels are well below regulatory limits.

The pre-operational (pre-op) ambient gamma radiation level is not a gross value, therefore, Figure C-7 displays a 'Pre-Op+ Transit' value which adds an average transit dose to the pre-op value. Transit dose is any dose recorded by the OSLDs when they are not actively measuring ambient radiation in the field (e.g. during transportation and dosimeter change outs). Transit dose can be measured anywhere from 3 to 8 mrem per month. An average value of 5 mrem per month was added to show that even though an increased dose is observed due to ISFSI operations, ISFSI is not increasing ambient gamma radiation levels above background and pre-operation levels. Location 1 R is approaching the pre-operational levels, but the other locations around ISFSI are still well below background levels.

F.

Land Use Census A Land Use Survey, conducted during the fall of 2017, was performed by Exelon Industrial Services (EIS), to comply with Section 3.8.E.2 of PBAPS's ODCM Specifications. The survey documented the nearest milk-producing and meat animal, nearest residence, and garden larger than 500 square feet in each of the sixteen meteorological sectors out to five miles.

Also, because PBAPS is an elevated release facility, an additional requirement of identifying all gardens larger than 500 square feet and every dairy operation within three (3) miles was included in the 2017 survey. The distance and direction of all locations were positioned using Global Positioning System (GPS) technology. The results of this survey are summarized below. There was no change in nearest residents compared to the 2016 report. Two new gardens were identified in 2017 with one in the WSW sector as the nearest garden for that sector. The closest meat animals in each sector for the 2017 report remained the same as the previous year while in the N sector a closer dairy farm was identified.

Location of the Nearest Residence, Garden, Milk, Meat, Animal within a Five-Mile Radius of PBAPS Reactor Building Exhaust Vents Sector Residence Feet Garden Feet Milk Farm Feet Meat Animal Feet 1

N 12,362 14,003 14,183 14,455 2 NNE 11,112 11,041 10,843 10,843 3

NE 10,080 10,004 10,492 10,492 4 ENE 10,495 11,554 10,925*

10,925 5

E 10,066 14,540 14,471 13,712 6 ESE 16,085 20,374 20,154 16,085 7

SE 10,772 10,772 19, 134*

19,134 8 SSE 3,912 3,912 9

s 5,545 5,545 9,247 10 SSW 6,072 8,167 11,602 7,187 11 SW 4,755 4,865 4,860*

4,860 12 WSW 4,036 7,487 13,366 13 w 5,327 5,327 5, 136*

5,136 14WNW 2,928 4,192 22,124 3,926 15 NW 2,948 9,545 9,545 7,582 16 NNW 5,124

  • Denotes current REMP milk sample location G.

Errata Data There is no errata data for 2017.

H.

Secondary Laboratory Analysis Appendix D of this report presents the results of data analyses performed by the QC laboratory, EIS and GEL. Duplicate samples were obtained from several locations and analyzed by both the primary and QC laboratories. GEL was only used for H-3 analyses of water samples because EIS could not perform those analyses. Comparisons of the results for all media were within expected ranges.

I.

Summary of Results - Quality Control (QC) Laboratory Analysis The primary and secondary laboratories analyzed Performance Evaluation (PE) samples of air particulate, air iodine, milk, soil, food products and water matrices (Appendix E). The PE samples, supplied by Eckert & Ziegler Analytics, Inc., Environmental Resource Associates (ERA) and DOE's Mixed Analyte Performance Evaluation Program (MAPEP), were evaluated against a pre-set acceptance criteria described in Appendix E.

For the Teledyne Brown Engineering (TSE) laboratory, 168 out of 173 analyses performed met the specified acceptance criteria. Five analyses (Water - Zn-65, Sr-89, and Sr-90, Air Particulate - U-238, and Soil - Cr-51) did not meet the specified acceptance criteria and are documented in Appendix E. TSE has addressed each issue through the TSE Corrective Action Program.

For the EIS laboratory, 74 of 75 analyses met the specified acceptance criteria. One analysis (Water - Gross Alpha) did not meet the specified acceptance criteria for the reasons described in Appendix E.

For the GEL laboratory, 8 of 8 H-3 analyses met the specified acceptance criteria.

The Inter-Laboratory Comparison Program provides evidence of "in control" counting systems and methods, and that the laboratories are producing accurate and reliable data.

VI.

References

1.

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

2.

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

3.

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

4.

Information from NCRP Reports 160 and 94

a.

Primarily from airborne radon and its radioactive progeny

b.

Includes CT (147 mrem), nuclear medicine (77 mrem),

interventional fluoroscopy (43 mrem) and conventional radiography and fluoroscopy (33 mrem)

c.

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

d.

Industrial, security, medical, educational, and research

5.

Offsite Dose Calculation Manual Guidance: Standard Radiological Effluent Controls for Boiling Water Reactors, Generic Letter 89-01,

Supplement No. 1 (NUREG-1302), April 1991 APPENDIX A RADIOLOGICAL ENVIRONMENTAL MONITORING REPORT

SUMMARY

Intentionally left blank

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I

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FIGURE A-1 TOTAL REMP ANALYSES FOR 2017 AND SPECIFIC NUCLIDE ANALYSES WITH ACTIVITY GREATER THAN MDC Total 2017 REMP Analyses Analyses > MDC 19%

% of Samples with Activities> MDC

"" 1(

279/294 229/229

\\0%

45/79 10%

1%

Naturally Occurring Radionuclides 0%

0/20 0/153 0/68 0/60 0/ 533 1/309

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TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTIOM ATOMIC POWER STATION, 2017 NAME OF FACILITY:

PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 LOCATION OF FACILITY:

YORK COUNTY, PA REPORTING PERIOD:

2017 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#

NONROUTINE (UNIT OF ANALYSIS ANALYSIS OF DETECTION (F)

(F)

(F)

NAME REPORTED MEASUREMENT)

PERFORMED PERFORMED (LLD)

RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS SURFACE WATER H-3 8

200

<LLD

<LLD 0

(PCI/LITER) 1-131 24

<LLD

<LLD 0

GAMMA 24 Mn-54 15

<LLD

<LLD 0

Co-58 15

<LLD

<LLD 0

Fe-59 30

<LLD

<LLD 0

Co-60 15

<LLD

<LLD 0

l n-65 30

<LLD

<LLD 0

Nb-95 15

<LLD

<LLD 0

lr-95 30

<LLD

<LLD 0

)>

Cs-134 15

<LLD

<LLD 0

I Cs-137 18

<LLD

<LLD 0

~

Ba-140 60

<LLD

<LLD 0

La-140 15

<LLD

<LLD 0

DRINKING WATER GR-B 36 4

2.8 2.6 2.8 138 INDICATOR 0

(PCI/LITER)

(17/24)

(7/12)

(10/12)

CHESTER WATER AUTH. SUSQUEHANNA PUMPING STA.

1.9-4.6 1.9 -4.1 1.9 - 4.6 13306 FEET ESE H-3 12 200

<LLD

<LLD 0

1-131 (LOW LVL}

36

<LLD

<LLD 0

GAMMA 36 MN-54 15

<LLD

<LLD 0

C0-58 15

<LLD

<LLD 0

FE-59 30

<LLD

<LLD 0

C0-60 15

<LLD

<LLD 0

ZN-65 30

<LLD

<LLD 0

NB-95 15

<LLD

<LLD 0

ZR-95 30

<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

(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 THE PEACH BOTTOM ATOMIC POWER STATION, 2017 NAME OF FACILITY:

PEACH BOTTOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 LOCATION OF FACILITY:

YORK COUNTY, PA REPORTING PERIOD:

2017 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 BOTIOM FEEDER GAMMA 4

(PCIIKG WET)

K-40 NA 2843 3649 3649 6CONTROL 0

(212)

(212)

(212)

HOL TWOOD POND 2229-3457 3282-4016 3282-4076 57347 FEET NW MN-54 130

<LLD

<LLD 0

C0-58 130

<LLD

<LLD 0

FE-59 260

<LLD

<LLD 0

C0-60 130

<LLD

<LLD 0

ZN-65 260

<LLD

<LLD 0

CS-734 130

<LLD

<LLD 0

CS-737 150

<LLD

<LLD 0

)>

I CA)

PREDATOR GAMMA 4

(PCIIKG WET)

K-40 NA 2749 3030 3030 6 CONTROL 0

(212)

(212)

(212)

HOL TWOOD POND 2152 - 3346 2637 - 3423 2637 - 3423 57347 FEET NW MN-54 130

<LLD

<LLD 0

C0-58 130

<LLD

<LLD 0

FE-59 260

<LLD

<LLD 0

C0-60 130

<LLD

<LLD 0

ZN-65 260

<LLD

<LLD 0

CS-134 130

<LLD

<LLD 0

CS-137 150

<LLD

<LLD 0

SEDIMENT GAMMA 6

(PCIIKG DRY)

K-40 NA 16675 9331 20000 4T INDICATOR 0

(414)

(212)

(212)

CONOWINGO POND NEAR CONOWINGO DAM 12730 -21950 9080 - 9585 18050 -21950 41818 FEET SE MN-54 NA

<LLD

<LLD 0

C0-58 NA

<LLD

<LLD 0

C0-60 NA

<LLD

<LLD 0

CS-134 150

<LLD

<LLD 0

I CS-137 180

<LLD 167 167 6F CONTROL 0

(112)

(1/2)

HOL TWOOD DAM I

31469 FEET NW (M) The Mean Values are calculated using the positive values. (F) Fraction of detectable measurement are indicated in parentheses.

J

TABLE A-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM ANNUAL

SUMMARY

FOR THE PEACH BOTTOM ATOMIC POWER STATION, 2017 NAME OF FACILITY:

PEACH BOTIOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 LOCATION OF FACILITY:

YORK COUNTY, PA REPORTING PERIOD:

2017 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 AIR PARTICULATE GR-B 258 10 19 16 22 3A INDICATOR 0

(E-3 PC/ICU.METER)

(204/206)

(51/52)

(52152)

DELTA PA SUBSTATION 7-37 6-22 7-37 19114 FEET SW GAMMA 20 BE-7 NA 96.5 61.2 105.3 3A INDICATOR 0

(16116)

(414)

(4/4)

DELTA PA SUBSTATION 61.7 - 125 48.9 - 76.8 90 - 124.9 19114 FEET SW MN-54 NA

<LLD

<LLD 0

C0-58 NA

<LLD

<LLD 0

C0-60 NA

<LLD

<LLD 0

)>

CS-134 50

<LLD

<LLD 0

I CS-137 60

<LLD

<LLD 0

~

AIR IODINE GAMMA 258 (E-3 PC/ICU.METER)

/-131 70

<LLD

<LLD 0

MILK 1-131 (LOW LVL) 156

<LLD

<LLD 0

(PCIILITER)

GAMMA 156 K-40 NA 1271 1240 1321 WINDICATOR 0

(1261126)

(30/30)

(4/4) 889-1712 1021-1460 1149-1537 89232 FEET S CS-134 15

<LLD

<LLD 0

CS-137 18

<LLD

<LLD 0

BA-140 60

<LLD

<LLD 0

LA-140 15

<LLD

<LLD 0

(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 THE PEACH BOTTOM ATOMIC POWER STATION, 2017 NAME OF FACILITY:

PEACH BOTIOM ATOMIC POWER STATION DOCKET NUMBER:

50-277 & 50-278 LOCATION OF FACILITY:

YORK COUNTY, PA REPORTING PERIOD:

2017 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#

NONROUTINE (UNIT OF ANALYSIS ANALYSIS OF DETECTION (F)

(F)

(F)

NAME REPORTED MEASUREMENT)

PERFORMED PERFORMED (LLD)

RANGE RANGE RANGE DISTANCE AND DIRECTION MEASUREMENTS VEGETATION GAMMA 59 (PCIIKG WET)

BE-7 NA 1397.9 528.1 1653.6 XINDICATOR 0

(18/47)

(7/12).

(6/6) 56/76 SPRING RD.

235.8 - 4232 188.8-1093 315.3-3593 9545 FEET NW K-40 NA 2934.3 4218.2 4218.2 55 CONTROL 0

(47/47)

(12/12)

(12/12)

NE SECTOR 982.2 - 5377 2753 - 5490 2753-5490 52272 FEET NE MN-54 NA

<LLD

<LLD 0

C0-58 NA

<LLD

<LLD 0

C0-60 NA

<LLD

<LLD 0

1-131 60

<LLD

<LLD 0

CS-734 60

<LLD

<LLD 0

)>

CS-737 80

<LLD

<LLD 0

I c.n DIRECT RADIATION OSLD-QUARTERL Y 191 NA 8.9 8.2 12.4 1R INDICATOR 0

(MILLI-ROENTGEN/STD.MO.)

(176/176)

(15/15)

(4/4)

TRANSMISSION LINE HILL 52 - 13.4 6.4 - 11.1 11.4 - 13.4 2798 FEET SSE (M) The Mean Values are calculated using the positive values. (F) Fraction of detectable measurement are indicated in parentheses.

Intentionally left blank

APPENDIX B SAMPLE DESIGNATION AND LOCATIONS

TABLE B-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2017 Location A.

Surface Water 1LL 1MM Location Description Peach Bottom Units 2 and 3 Intake - Composite (Control)

Peach Bottom Canal Discharge -Composite B.

Drinking {Potable) Water 4L 61 138 C. Fish 4

6 D. Sediment 4J 4T 6F Conowingo Dam EL 33' MSL - Composite Holtwood Dam Hydroelectric Station - Composite (Control)

Chester Water Authority (CWA) Susquehanna Pumping Station-Composite Conowingo Pond Holtwood Pond (Control)

Conowingo Pond near Berkin's Run Conowingo Pond near Conowingo Dam Holtwood Dam (Control)

E. Air Particulate - Air Iodine 1B 1Z 1A 1C 3A 5H2 Weather Station #2 Weather Station #1 Weather Station #1 Peach Bottom South Sub Station Delta, PA - Substation Manor Substation (Control)

F.

Milk - bi-weekly/ monthly J

R s

u V

X G. Milk - quarterly C

D E

L p

w (Control)

(Control)

(Control)

H.

Food Products - monthly when available 1B*

1C 2Q 30 55 X

(Control)

Distance & Direction from Site per PBAPS ODCM 1,200 feet ENE 5,500 feet SE 45,900 feet SE 30,500 feet NW 13,300 feet ESE 6,000 - 10,000 feet SE 50,000 - 70,000 feet NNW 7,400 feet SE 41,800 feet SE 31,500 feet NW 2,500 feet NW 1,500 feet SE 1,500 feet SE 4,700 feet SSE 19,300 feet SW 162,400 feet NE 5,100 feetW 4,900 feet SW 19,100 feet SE 11,200 feet SSW 32,600 feet W 9,500 feet NW 5,000 feet NW 18,500 feet NE 46,100 feet N 11,200 feet NE 11,000 feet ENE 89,200 feet S 2,500 feet NW 4,700 feet SSE 9,200 feet SW 9,500 feetW 51,900 feet NE 9,500 feet NW

  • 1 B had severe animal predation and was removed from sampling program in ODCM Rev 16 B-1

TABLE 8-1 Radiological Environmental Monitoring Program - Sampling Locations, Distance and Direction from Reactor Buildings, Peach Bottom Atomic Power Station, 2017 Location Location Description Distance & Direction from Site per PBAPS ODCM J.

Environmental Dosimetry - OSLO Site Boundary 1L Peach Bottom Unit 3 Intake 1,1 00feetNE 1P Tower B & C Fence 2,200 feet ESE 1A Weather Station #1 1,500 feet SE 1Q Tower D & E Fence 3,300 feet SE 1D 140 ° Sector 3,500 feet SE 2

Peach Bottom 130° Sector Hill 4,700 feet SE 2B Burk Property 3,900 feet SSE 1M Discharge 5,400 feet SE 1R Transmission Line Hill/lSFSI Pad 2,800 feet SSE 11 Peach Bottom South Substation 2,900 feet SSE 1C Peach Bottom South Substation 4,700 feet SSE 1J Peach Bottom 180° Sector Hill 4,000 feet S 1K Peach Bottom Site Area 4,700 feet SW 1F Peach Bottom 200° Sector Hill 2,900 feet SSW 40 Peach Bottom Site Area 8,000 feet SW 1NN Peach Bottom Site 2,700 feet WSW 1H Peach Bottom 270° Sector Hill 3,200 feetW 1G Peach Bottom North Substation 3,100 feet WNW 1B Weather Station #2 2,500 feet NW 1E Peach Bottom 350° Sector Hill 3,000 feet NNW Intermediate Distance 5

Wakefield, PA 24,400 feet E 15 Silver Spring Rd 19,300 feet N 22 Eagle Road 12,500 feet NNE 44 Goshen Mill Rd 26,700 feet NE 32 Slate Hill Rd 14,400 feet ENE 45 PB-Keeney Line 18,500 feet ENE 14 Peters Creek 10,300 feet E 17 Riverview Rd 21,500 feet ESE 31A Eckman Rd 24,100 feet SE 4K Conowingo Dam Power House Roof 45,900 feet SE 23 Peach Bottom 150° Sector Hill 5,500 feet SSE 27 N. Cooper Road 14,400 feet S 48 Macton Substation 26,500 feet SSW 3A Delta, PA Substation 19,300 feet SW 49 PB-Conastone Line 21,500 feet WSW 50 TRANSCO Pumping Station 26,400 feet W 51 Fin Substation 21,000 feet WNW 26 Slab Road 21,800 feet NW 6B Holtwood Dam Power House Roof 30,400 feet NW 42 Muddy Run Environ. Laboratory 21,600 feet NNW 43 Drumore Township School 26,200 feet NNE 46 Broad Creek 23,800 feet SSE 47 Broad Creek Scout Camp 22,700 feet S 1T Lay Road/LLRWSF 3,100 feet WNW Control 16 Nottingham, PA Substation (Control) 67, 100 feet E 24 Harrisville, MD Substation (Control) 58,200 feet ESE 18 Fawn Grove, PA (Control) 52,200 feet W 19 Red Lion, PA (Control) 124,000 feet WNW B-2

TABLE B-2 Sample Analysis Medium Surface Gamma Water Spectroscopy Surface Water Tritium Surface Water 1-131 OJ I

~

Drinking Gross Beta Water Drinking 1-131 Water Drinking Gamma Water Spectroscopy Drinking Tritium Water Fish Gamma Spectroscopy Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Peach Bottom Atomic Power Station, 2017 Sampling Method Collection Procedure Number Sample Analytical Procedure Number Size Monthly composite CY-ES-210 EIS Collection of Water TBE, TBE-2007 Gamma emitting radioisotope analysis from a continuous Samples for Radiological Analysis 2 gallon EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe water compositor (PBAPS)

Detector with the Genie PC Counting System TBE, TBE-2010 Tritium and carbon-14 analysis by liquid Quarterly composite CY-ES-210 EIS Collection of Water scintillation from a continuous Samples for Radiological Analysis 500ml water compositor (PBAPS)

GEL, EPA906.0 Mod, for Tritium analysis by Liquid Scintillation Monthly composite CY-ES-210 EIS Collection of Water TBE, TBE-2012 Radioiodine in various matrices from a continuous Samples for Radiological Analysis 2 gallon EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe water compositor (PBAPS)

Detector with the Genie PC Counting System Monthly composite CY-ES-210 EIS Collection of Water TBE, TBE-2008 Gross alpha and/or gross beta activity in various matrices from a continuous Samples for Radiological Analysis 2 gallon water compositor (PBAPS)

CY-ES-206, Operation of the Tennelec S5E Proportional Counter Monthly composite CY-ES-210 EIS Collection of Water TBE, TBE-2031 Radioiodine in drinking water from a continuous Samples for Radiological Analysis 2 gallon EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe water compositor (PBAPS)

Detector with the Genie PC Counting System Monthly composite CY-ES-210 EIS Collection of Water TBE, TBE-2007 Gamma emitting radioisotope analysis from a continuous Samples for Radiological Analysis 2 gallon EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe water compositor (PBAPS)

Detector with the Genie PC Counting System Quarterly composite CY-ES-210 EIS Collection of Water TBE, TBE-2010 Tritium and carbon-14 analysis by liquid scintillation from a continuous Samples for Radiological Analysis 500 ml water compositor (PBAPS)

GEL, EPA906.0 Mod, for Tritium analysis by Liquid scintillation Semi-annual samples TBE, TBE-2007 Gamma emitting radioisotope analysis collected via NAI-ER3 Collection of fish samples for 1000 grams electroshocking or radiological analysis (PBAPS)

(wet)

EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe other techniques Detector with the Genie PC Counting System

TABLE B-2 Sample Analysis Medium Sediment Gamma Spectroscopy Air Gross Beta Particulates Air Gamma Particulates Spectroscopy Gamma Air Iodine Spectroscopy Milk 1-131 Milk Gamma Spectroscopy Food Gamma Products Spectroscopy Optically Stimulated OSLO Luminescence Dosimetry Radiological Environmental Monitoring Program - Summary of Sample Collection and Analytical Methods, Peach Bottom Atomic Power Station, 2017 Sampling Method Collection Procedure Number Sample Analytical Procedure Number Size TBE, TBE-2007 Gamma emitting radioisotope analysis Semi-annual grab NAI-ER3 Collection of sediment samples 500 grams samples for radiological analysis (PBAPS)

(dry)

EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe Detector with the Genie PC Counting System NAI-ER8 Collection of air particulate and One-week composite of air iodine samples for radiological 1 filter TBE, TBE-2008 Gross alpha and/or gross beta activity in continuous air sampling analysis (PBAPS)

(- 280 various matrices through glass fiber filter CY-ES-208 Sample Collection of Air cubic meters EIS, CY-ES-206, Rev. 001 Operation of the Tennelec SSE paper Iodine and Air Particulate for weekly)

Proportional Counter Radiological Analysis (PBAPS)

TBE, TBE-2023 Compositing of samples TBE, TBE-2007 Gamma emitting radioisotope analysis 13 filters Quarterly composite of CY-ES-204, Rev. 001 Sample

(- 3600 cubic each station Preparation for Gamma and Beta meters)

EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe Counting Detector with the Genie PC Counting System NAI-ER8 Collection of air particulate and air iodine samples for radiological 1 filter TBE, TBE-2007 Gamma emitting radioisotope analysis One-week composite of analysis (PBAPS)

(- 280 continuous air sampling cubic meters EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe through charcoal filter CY-ES-208 Sample Collection of Air weekly)

Detector with the Genie PC Counting System Iodine and Air Particulate for RadioloQical Analysis (PBAPS)

Bi-weekly grab sample TBE, TBE-2012 Radioiodine in various matrices when cows are on CY-ES-209 EIS Sample Collection for 2 gallon pasture. Monthly all Gamma Counting - Milk (PBAPS)

EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe other times Detector with the Genie PC Counting System Bi-weekly grab sample TBE, TBE-2007 Gamma emitting radioisotope analysis when cows are on CY-ES-209 EIS Sample Collection for 2 gallon pasture; Monthly all Gamma Counting - Milk (PBAPS)

EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe other times Detector with the Genie PC Counting System CY-ES-207 Sample Collection for TBE, TBE-2007 Gamma emitting radioisotope analysis Monthly when available 1000 grams Gamma Counting - Vegetation (PBAPS)

EIS, CY-ES-205, Rev. 001 Gamma Counting Using the HPGe Detector with the Genie PC Counting System Quarterly OSLDs comprised of two NAI-ER9 Collection of OSLO samples 2 dosimeters Landauer Incorporated Ab03:C Landauer for radiological analysis (PBAPS)

Incorporated elements.

w Figure B-1 Environmental Sampling Locations Within One Mile of the Peach Bottom Atomic Power Station, 2017 B-5

'I J,.,t11, n I ' *1 SE E

5 Mile Radius w

s

tfl
  • I Service Layer Credits: Sources Esri. HERE, Garrmn. lntermap. increment P Corp.* GEBCO. USGS. FAO, NPS. NRCAN. GeoBase. IGN. Kadaster NL; Ordn,nce Sufvey, Esn Japan, METI, Esn China (Hong Kong), sv1isstopo, C OpenStreetMap contributors. and the GIS User Community Figure B-2 Environmental Sampling Locations Between One and Approximately Five Miles of the Peach Bottom Atomic Power Station, 2017 8-6 E

w lh llllfU**I I

.n 11 I I* t,, 11

,1* 111 ti I *

  • I-Al I 11 I * ~,II

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Service Layer Credits: Souroes: Esri, HERE, Garmin. lntermap. increment P Corp., GEBCO. USGS. FAO. NPS. NRCAN. GeoBase. IGN, Kadaslei NL, Ordnance Survey, Esri Japan, METI, Esn China (Hong Kong), swisstopo, C OpenStteetMap contributors. and the GIS User Community I 11 t *1111.i, Figure B-3 Environmental Sampling Locations Greater Than Five Miles from the Peach Bottom Atomic Power Station, 2017 B-7 II I

E I.fill I

APPENDIX C DATA TABLES AND FIGURES PRIMARY LABORATORY

Intentionally left blank

Table C-1.1 Table C-1.2 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RES UL TS IN UNITS OF PC I/LITER + 2 SIGMA COLLECTION PERIOD 1LL 1MM 12/28/16 - 03/29/17

< 196

< 194 03/29/17 - 06/28/17

< 189

< 182 06/28/17 - 09/27/17

< 183

< 180 09/27/17 - 12/27/17

< 197

< 196 MEAN CONCENTRATIONS OF LOW LEVEL 1-131 IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RES UL TS IN UNITS OF PCI/LITER + 2 SIGMA COLLECTION PERIOD 1LL 1MM 12/28/16 -

02/01/17

< 0.2

< 0.3 02/01/17 -

03/01/17

< 0.4

< 0.4 03/01/17 -

03/29/17

< 0.4

< 0.8 03/29/17 -

04/26/17

< 0.5

< 0.5 04/26/17 -

05/31/17

< 0.4

< 0.3 05/31/17 -

06/28/17

< 0.9

< 0.6 06/28/17 -

07/26/17

< 0.3

< 0.4 07/26/17 -

08/30/17

< 0.9

< 0.8 08/30/17 -

09/27/17

< 0.3

< 0.5 09/27/17 -

11/01/17

< 0.6

< 0.6 11/01/17 -

11/29/17

< 0.8

< 0.7 11/29/17 -

12/27/17

< 0.7

< 0.5 MEAN C-1

Table C-1.3 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 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 Cs-134 Cs-137 Ba-140 La-140 1LL 12/28/16 - 02/01/17

< 8

< 7

< 13

< 8

< 14

< 9

< 10

< 8

< 9

< 33

< 8 02/01/17 - 03/01/17

< 5

< 5

< 13

< 6

< 9

< 6

< 9

< 5

<6

< 29

< 9 03/01 /17 - 03/29/17

< 6

< 7

< 14

< 7

< 15

< 8

< 11

< 8

< 7

< 32

< 9 03/29/1 7 - 04/26/17

< 6

< 7

< 13

< 6

< 13

< 6

< 9

< 6

< 6

< 32

< 8 04/26/1 7 - 05/31/17

< 8

< 7

< 14

< 7

< 16

< 7

< 13

< 7

< 8

< 37

< 9 05/31 /17 - 06/28/17

< 7

< 7

< 14

< 7

< 12

< 7

< 11

< 7

< 6

< 36

< 10 06/28/17 - 07/26/17

< 6

< 5

< 13

< 8

< 15

< 7

< 13

< 8

< 5

< 27

< 7 07 /26/17 - 08/30/17

< 6

< 8

< 17

< 8

< 13

< 7

< 12

< 8

< 8

< 33

< 14 08/30/17 - 09/27/17

< 7

< 7

< 12

< 7

< 13

< 8

< 14

< 7

< 7

< 38

< 11 09/27/17 - 11/01/17

<4

< 6

< 15

< 5

< 13

< 7

< 11

< 7

< 6

< 29

< 9 11/01/17 - 11/29/17

< 7

< 7

< 15

< 8

< 14

< 7

< 11

< 7

< 7

< 21

< 10 11/29/17 - 12/27/17

< 5

<4

< 10

< 7

< 9

< 5

< 8

< 5

<6

< 20

< 7 0

I I\\.)

MEAN 1MM 12/28/16 - 02/01 /17

< 6

< 5

< 11

< 6

< 13

< 7

< 12

< 6

< 7

< 31

< 8 02/01/1 7 - 03/01/17

< 6

< 6

< 13

< 5

< 12

< 6

< 9

< 6

< 7

< 24

< 9 03/01 /17 - 03/29/17

< 9

< 9

< 15

< 10

< 18

< 8

< 16

< 9

< 8

< 34

< 14 03/29/1 7 - 04/26/17

< 5

< 6

< 12

< 6

< 17

< 6

< 11

< 8

< 8

< 32

< 11 04/26/17 - 05/31/17

< 5

< 8

< 11

< 5

< 16

< 5

< 14

< 5

< 5

< 26

< 15 05/31/1 7 - 06/28/17

< 6

< 6

< 14

< 8

< 13

< 7

< 12

< 7

< 7

< 30

< 10 06/28/17 - 07 /26/17

< 9

< 9

< 16

< 8

< 17

< 10

< 13

< 10

< 9

< 35

< 15 07 /26/17 - 08/30/1 7

< 7

< 9

< 16

< 9

< 18

< 9

< 11

< 10

< 7

< 34

< 13 08/30/17 - 09/27 /17

< 7

< 8

< 17

< 9

< 16

< 8

< 10

< 8

< 8

< 41

< 9 09/27/1 7 - 11/01/17

< 5

< 5

< 11

< 6

< 14

< 7

< 12

< 7

< 6

< 36

< 9 11/01/17 - 11/29/17

< 6

< 8

< 10

< 7

< 9

< 8

< 8

< 9

< 8

< 25

< 8 11/29/17 - 12/27/17

< 9

< 9

< 21

< 12

< 13

< 11

< 16

< 13

< 9

< 43

< 12 MEAN

Table C-11.1 CONCENTRATIONS OF GROSS BETA IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 138 4L 61 12/29/16 - 02/02/17 2.1 +/- 1.3

< 1.8

< 1.7 02/02/17 - 03/02/17 1.9 +/- 1.3

< 1.8

< 1.8 03/02/17 - 03/30/17

< 1.9

< 1.8 2.3 +/- 1.3 03/30/17 - 04/27 /17

< 2.0

< 2.0

< 2.0 04/27/17 - 06/01/17 2.5 +/- 1.4

< 1.8 1.9 +/- 1.2 06/01/17 - 06/29/17 2.1 +/- 1.4 2.7 +/- 1.4

< 1.9 06/29/17 - 07/27/17 3.3 +/- 1.6 3.0 +/- 1.3 1.9 +/- 1.3 07/27/17 - 08/31/17 4.6 +/- 1.5 3.0 +/- 1.4 2.8 +/- 1.4 08/31 /17 - 09/28/17 2.0 +/- 1.3 3.7 +/- 1.4 3.1 +/- 1.4 09/28/17 - 11 /02/17 4.6 +/- 1.7 3.3 +/- 1.6 4.1 +/- 1.6 11/06/17 - 11/29/17 3.1 +/- 1.4 1.9 +/- 1.2 2.1 +/- 1.3 11 /30/17 - 12/28/17 2.4 +/- 1.4 2.3 +/- 1.3

< 1.8 MEAN +/- 2 STD DEV 2.8 +/- 2.0 2.8 +/- 1.2 2.6 +/- 1.6 Table C-11.2 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 138 4L 61 12/29/16 - 03/30/17

< 197

< 197

< 194 03/30/17 - 06/29/17

< 182

< 182

< 181 06/29/17 - 09/28/17

< 171

< 174

< 171 09/28/17 - 12/28/17

< 195

< 192

< 194 MEAN Table C-11.3 CONCENTRATIONS OF LOW LEVEL 1-131 IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION PERIOD 138 4L 61 12/29/16 - 02/02/17

< 0.3

< 0.2

< 0.3 02/02/17 - 03/02/17

< 0.5

< 0.4

< 0.4 03/02/17 - 03/30/17

< 0.9

< 0.7

< 0.8 03/30/17 - 04/27/17

< 0.5

< 0.4

< 0.5 04/27/17 - 06/01/17

< 0.5

< 1.0

< 0.5 06/01 /17 - 06/29/17

< 1.0

< 0.6

< 0.8 06/29/17 - 07/27/17

< 0.4

< 0.3

< 0.3 07/27/17 - 08/31/17

< 0.7

< 0.5

< 0.7 08/31/17 - 09/28/17

< 0.9

< 0.4

< 0.4 09/28/17 - 11/02/17

< 0.6

< 0.7

< 0.7 11/06/17 - 11/29/17

< 0.6

< 1.0

< 0.6 11/30/17 - 12/28/17

< 0.5

< 0.8

< 0.4 MEAN THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-3

Table C-11.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 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 13B 12/27/16 - 01/30/17

< 6

< 7

< 12

< 7

< 15

< 8

< 13

< 7

< 8

< 34

< 10 01/30/17 - 02/27/17

< 6

< 7

< 16

< 8

< 14

< 8

< 13

< 8

< 6

< 43

< 11 02/27/17 - 03/27/17

< 6

< 6

< 14

< 6

< 16

< 7

< 13

< 7

< 7

< 32

< 14 03/27/17 - 04/24/17

< 5

< 5

< 7

< 6

< 11

< 7

< 8

< 6

< 5

< 23

< 9 04/24/17 - 05/30/17

< 6

< 8

< 16

< 7

< 12

< 9

< 14

< 8

< 9

< 36

< 10 05/30/17 - 06/26/17

< 6

< 5

< 13

< 6

< 12

< 7

< 13

< 7

< 6

< 35

< 8 06/26/17 - 07 /24/17

< 5

< 7

< 14

< 6

< 13

< 5

< 10

< 5

< 6

< 28

< 11 07 /24/17 - 08/28/17

< 6

< 6

< 16

< 5

< 12

< 7

< 12

< 7

< 6

< 35

< 7 08/28/17 - 09/25/17

< 5

< 6

< 10

< 7

< 12

< 6

< 9

< 5

< 6

< 28

< 11 09/25/17 - 11 /02/17

< 8

< 7

< 14

< 7

< 15

< 8

< 11

< 7

< 8

< 35

< 6 11 /06/17 - 11 /29/17

< 8

< 5

< 14

< 9

< 12

< 8

< 9

< 8

< 7

< 29

< 7 11 /29/17 - 12/26/17

< 7

< 6

< 15

< 7

< 15

< 7

< 10

< 8

< 6

< 27

< 8 MEAN 4L 12/29/16 -

02/02/17

< 8

< 7

< 15

< 5

< 12

< 9

< 13

< 8

< 7

< 27

< 8 02/02/17 -

03/02/17

< 11

< 8

< 19

< 10

< 19

< 9

< 9

< 8

< 9

< 32

< 11 0

03/02/17 -

03/30/17

< 6

< 7

< 12

< 7

< 17

< 7

< 14

< 7

< 6

< 37

< 12

.i 03/30/17 -

04/27 /17

< 10

< 9

< 17

< 9

< 22

< 10

< 16

< 11

< 10

< 44

< 14 04/27/17 -

06/01/17

< 8

< 8

< 15

< 7

< 15

< 8

< 12

< 6

< 8

< 32

< 9 06/01 /17 -

06/29/17

< 8

< 8

< 19

< 11

< 20

< 8

< 14

< 9

< 8

< 38

< 14 06/29/17 -

07/27/17

< 10

< 8

< 19

< 10

< 18

< 10

< 15

< 12

< 9

< 36

< 10 07/27/17 -

08/31/17

< 9

< 8

< 17

< 7

< 17

< 9

< 15

< 8

< 8

< 43

< 11 08/31 /17 -

09/28/17

< 5

< 4

< 7

< 5

< 9

< 5

< 8

< 5

< 4

< 24

< 7 09/28/17 -

11/02/17

< 6

< 5

< 19

< 5

< 15

< 4

< 11

< 7

< 6

< 29

< 9 11/02/17 -

11/30/17

< 8

< 6

< 16

< 8

< 15

< 7

< 12

< 10

< 8

< 24

< 10 11/30/17 -

12/28/17

< 6

< 6

< 10

< 7

< 11

< 6

< 11

< 6

< 7

< 32

< 6 MEAN 61 12/29/16 - 02/02/17

< 8

< 9

< 14

< 9

< 20

< 9

< 14

< 10

< 9

< 36

< 11 02/02/17 - 03/02/17

< 5

< 5

< 12

< 7

< 10

< 6

< 11

< 7

< 7

< 29

< 7 03/02/17 - 03/30/17

< 7

< 5

< 11

< 7

< 12

< 6

< 9

< 7

< 7

< 30

< 8 03/30/17 - 04/27 /17

< 8

< 8

< 12

< 7

< 17

< 8

< 14

< 8

< 9

< 38

< 12 04/27/17 - 06/01/17

< 7

< 9

< 14

< 10

< 15

< 9

< 13

< 7

< 10

< 32

< 15 06/01 /17 - 06/29/17

< 8

< 9

< 21

< 8

< 14

< 9

< 18

< 10

< 9

< 37

< 15 06/29/17 - 07 /27 /17

< 7

< 5

< 11

< 8

< 14

< 6

< 12

< 7

< 7

< 27

< 4 07/27/17 - 08/31/17

< 8

< 9

< 15

< 9

< 20

< 10

< 17

< 11

< 10

< 42

< 14 08/31 /17 - 09/28/17

< 7

< 7

< 14

< 6

< 13

< 6

< 15

< 8

< 7

< 34

< 14 09/28/17 - 11 /02/17

< 7

< 6

< 11

< 5

< 14

< 7

< 9

< 6

< 6

< 27

< 12 11/02/17 - 11/30/17

< 8

< 5

< 14

< 6

< 21

< 8

< 12

< 8

< 7

< 32

< 7 11 /30/17 - 12/28/17

< 6

< 8

< 14

< 8

< 13

< 7

< 12

< 8

< 8

< 37

< 10 MEAN

Table C-111.1 CONCENTRATIONS OF GAMMA EMITTERS IN PREDATOR AND BOTTOM FEEDER (FISH)

SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/KG WET+/- 2 SIGMA COLLECTION SITE PERIOD K-40 Mn-54 Co-58 Fe-59 Co-60 Zn-65 Cs-134 Cs-137 4

06/06/17 2152 +/- 1035

< 66

< 65

< 142

< 82

< 129

< 71

< 65 PREDATOR 10/10/17 3346 +/- 1147

< 66

< 70

< 138

< 81

< 146

< 94

< 78 MEAN+/- 2 STD DEV 2749 +/- 1689 4

06/06/17 2229 +/- 749

< 51

< 51

< 111

< 59

< 126

< 66

< 69 BOTTOM FEEDER 10/10/17 3457 +/- 1124

< 48

< 53

< 128

< 51

< 140

< 55

< 50 MEAN +/- 2 STD DEV 2843 +/- 1737 6

06/07/17 2637 +/- 886

< 64

< 70

< 94

< 71

< 167

< 71

< 72 PREDATOR 10/17/17 3423 +/- 1007

< 69

< 68

< 146

< 97

< 159

< 88

< 76 MEAN+/- 2 STD DEV 3030 +/- 1112 0

I CTI 6

06/07/17 3282 +/- 820

< 51

< 55

< 108

< 47

< 118

< 65

< 63 BOTTOM FEEDER 10/17/17 4016 +/- 821

< 63

< 64

< 142

< 93

< 165

< 74

< 74 MEAN +/- 2 STD DEV 3649 +/- 1038 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES

Table C-IV.1 CONCENTRATIONS OF GAMMA EMITTERS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PC/KG DRY+/- 2 SIGMA COLLECTION SITE PERIOD K-40 Mn-54 Co-58 Co-60 Cs-134 Cs-137 4J 06/27/17 13970 +/- 1309

< 46

< 41

< 41

< 46

< 48 11/29/17 12730 +/- 1206

< 49

< 48

< 56

< 57

< 57 MEAN +/- 2 STD DEV 13350 +/- 1754 4T 06/27/17 18050 +/- 2161

< 107

< 94

< 128

< 141

< 135 11/29/17 21950 +/- 1961

< 100

< 78

< 89

< 123 187 +/- 78 MEAN +/- 2 STD DEV 20000 +/- 5515 187 +/- 0 6F 06/27/17 9080 +/- 1125

< 82

< 66

< 77

< 81

< 85 11/29/17 9582 +/- 1543

< 77

< 65

< 80

< 89

< 94 MEAN +/- 2 STD DEV 9331 +/- 710 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-6

Table C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF E-3 PCI/CUBIC METER+/- 2 SIGMA COLLECTION GROUP I GROUP II GROUP Ill PERIOD 18 1C 1Z 3A 5H2 12/29/16 - 01/05/17 21 +/- 6 15 +/- 5 20 +/- 5 18 +/- 5 01/03/17 - 01/09/17 15 +/- 6 01/05/17 - 01/12/17 20 +/- 5 13 +/- 5 19 +/- 5 15 +/- 4 01 /09/17 - 01 /17/17 11 +/- 4 01 /12/17 - 01 /19/1 7 31 +/- 6 15 +/- 5 25 +/- 5 27 +/- 5 01 /17/17 - 01 /24/17 8 +/- 5 01/19/17 - 01/26/17 17 +/- 5 14 +/- 5 17 +/- 5 13 +/- 4 01/24/17 - 01/30/17 11 +/- 6 01/26/17 - 02/02/1 7 20 +/- 5 12 +/- 5 15 +/- 4 20 +/- 5 01/30/17 - 02/06/1 7 15 +/- 5 02/02/17 - 02/08/1 7 30 +/- 7 18 +/- 6 31 +/- 6 37 +/- 6 02/06/17 - 02/13/17 17 +/- 5 02/08/17 - 02/16/17 24 +/- 6 15 +/- 4 19 +/- 4 21 +/- 4 02/13/17 - 02/21/17 20 +/- 5 02/16/17 - 02/23/17 27 +/- 6 21 +/- 5 30 +/- 5 25 +/- 5 02/21/17 - 02/27/17 16 +/- 5 02/23/17 - 03/02/17 17 +/- 5 12 +/- 4 20 +/- 4 20 +/- 4 02/27/17 - 03/06/17 12 +/- 5 03/02/17 - 03/09/17 28 +/- 6 13 +/- 5 21 +/- 5 24 +/- 5 03/06/17 - 03/13/17 12 +/- 5 03/09/17 - 03/16/17 19 +/- 5 12 +/- 5 19 +/- 4 20 +/- 5 03/13/17 - 03/20/17 14 +/- 5 03/16/17 - 03/23/17 34 +/- 6 20 +/- 5 31 +/- 5 29 +/- 5 03/20/17 - 03/27/17 18 +/- 5 03/23/17 - 03/30/17 29 +/- 6 16 +/- 5 24 +/- 5 25 +/- 5 03/27/17 - 04/03/17 8 +/- 4 03/30/17 - 04/06/17 9 +/- 5

< 8 9 +/- 5 14 +/- 5 04/03/17 - 04/10/17 8 +/- 4 04/06/17 - 04/13/17 20 +/- 5 11 +/- 5 16 +/- 4 21 +/- 5 04/10/17 - 04/17/17 16 +/- 5 04/13/17 - 04/20/17 16 +/- 5 14 +/- 5 15 +/- 4 15 +/- 5 04/17/17 - 04/24/17 13 +/- 4 04/20/17 - 04/27/17

< 7 11 +/- 5 8 +/- 4 7 +/- 4 04/24/17 - 05/02/17 8 +/- 4 04/27/17 - 05/04/17 22 +/- 5 19 +/- 5 21 +/- 4 20 +/- 4 05/02/17 - 05/08/17 10 +/- 5 05/04/17 - 05/11 /17 17 +/- 5 16 +/- 4 16 +/- 4 17 +/- 4 05/08/17 - 05/15/17

< 6 05/11/17 - 05/18/17 12 +/- 4 8+/-4 13 +/- 4 17 +/- 4 05/15/17 - 05/22/17 18 +/- 5 05/18/17 - 05/25/17 15 +/- 4 13 +/- 4 14 +/- 4 15 +/- 4 05/22/17 - 05/30/17 6 +/- 4 05/25/17 - 06/01/17 11 +/- 4 10 +/- 4 12 +/- 4 12 +/- 4 05/30/17 - 06/05/17 14 +/- 5 06/01/17 - 06/08/17 17 +/- 5 15 +/- 4 21 +/- 4 20 +/- 4 06/05/17 - 06/12/17 14 +/- 5 06/08/17 - 06/15/17 30 +/- 5 20 +/- 5 30 +/- 5 21 +/- 4 06/12/17 - 06/19/17 18 +/- 4 06/15/17 - 06/22/17 15 +/- 5 15 +/- 4 18 +/- 4 20 +/- 4 06/19/17 - 06/27/17 12 +/- 4 06/22/17 - 06/29/17 23 +/- 5 13 +/- 4 17 +/- 4 20 +/- 4 06/27/17 - 07/03/17 13 +/- 5 06/29/17 -

07/06/17 30 +/- 6 25 +/-

5 25 +/- 4 27 +/- 5 07/03/17 -

07/11/17 20 +/- 4 07/06/17 -

07/13/17 24 +/- 5 20 +/- 5 23 +/- 5 24 +/- 5 C-7

Table C-V.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF E-3 PCI/CUBIC METER +/- 2 SIGMA COLLECTION GROUP I GROUP II GROUP Ill PERIOD 18 1C 1Z 3A 5H2 07/11/17 -

07/17/17 16 +/- 6 07/13/17 -

07/20/1 7 29 +/- 6 (1) 23 +/- 4 23 +/- 4 07/17/17 -

07/24/17 19 +/- 5 07/20/17 -

07/27/17 25 +/- 5 18 +/- 4 24 +/- 4 22 +/- 4 07/24/17 -

07/31 /17 13 +/- 5 07/27/17 -

08/03/1 7 16 +/- 4 13 +/- 4 14 +/- 4 19 +/- 4 07/31/1 7 - 08/08/17 14 +/- 4 08/03/17 - 08/10/17 14 +/- 5 11 +/- 5 14 +/- 4 17 +/- 4 08/08/17 - 08/14/17 18 +/- 6 08/10/1 7 - 08/17/1 7 26 +/- 5 14 +/- 5 22 +/- 5 24 +/- 5 08/14/17 - 08/22/17 16 +/- 4 08/17/17 - 08/24/17 (1) 20 +/- 5 26 +/- 5 28 +/- 5 08/22/17 - 08/28/17 12 +/- 5 08/24/17 - 08/31/17 13 +/- 3 18 +/- 4 19 +/- 4 20 +/- 4 08/28/17 - 09/05/17 18 +/- 4 08/31/1 7 - 09/07/17 11 +/- 2 9 +/- 5 13 +/- 4 17 +/- 5 09/05/17 - 09/11/17 13 +/- 5 09/07/17 - 09/14/17 11 +/- 2 15 +/- 5 22 +/- 5 19 +/- 5 09/11/17 - 09/19/17 14 +/- 4 09/14/17 - 09/21/17 16 +/- 3 21 +/- 5 27 +/- 5 28 +/- 6 09/19/17 - 09/25/17 20 +/- 6 09/21/17 - 09/28/17 16 +/- 3 16 +/- 5 23 +/- 5 24 +/- 5 09/25/17 - 10/02/17 12 +/- 4 09/28/17 - 10/05/17 13 +/- 2 16 +/- 5 22 +/- 5 22 +/- 5 10/02/17 - 10/10/17 12 +/- 4 10/05/17 - 10/12/17 16 +/- 3 19 +/- 5 20 +/- 4 22 +/- 5 10/10/17 - 10/16/17 15 +/- 5 10/12/17 - 10/19/17 11 +/- 2 9 +/- 4 16 +/- 4 17 +/- 4 10/16/17 - 10/23/17 21 +/- 5 10/1 9/17 - 10/26/17 17 +/- 2 22 +/- 5 26 +/- 4 27 +/- 5 10/23/17 - 10/30/17 14 +/- 5 10/26/17 - 11/02/17 11 +/- 2 11 +/- 4 19 +/- 4 18 +/- 4 10/30/17 - 11/06/17 19 +/- 5 11/02/17 - 11/09/17 13 +/- 2 11 +/- 4 23 +/- 5 23 +/- 5 11/06/17 - 11/13/1 7 12 +/- 5 11/09/17 - 11/16/17 19 +/- 4 23 +/- 5 29 +/- 5 27 +/- 5 11/13/17 - 11/20/17 14 +/- 5 11/16/17 - 11/22/17 17 +/- 5 16 +/- 5 23 +/- 5 26 +/- 6 11/20/1 7 - 11/27/17 22 +/- 5 11/22/17 - 11/30/17 21 +/- 4 17 +/- 4 25 +/- 4 31 +/- 5 11/27/17 - 12/04/17 17 +/- 5 11/30/17 - 12/07/17 17 +/- 4 18 +/- 5 22 +/- 5 28 +/- 5 12/04/17 - 12/11/17 20 +/- 5 12/07/17 - 12/14/17 25 +/- 5 24 +/- 5 27 +/- 5 32 +/- 6 12/11/17 - 12/18/17 10 +/- 5 12/14/17 - 12/21/17 18 +/- 4 24 +/- 5 27 +/- 5 28 +/- 5 12/18/17 - 12/26/17 15 +/- 4 12/21/17 - 12/28/17 19 +/- 4 23 +/- 5 24 +/- 5 30 +/- 5 12/26/17 - 01/02/18 16 +/- 5 MEAN+/- 2 STD DEV 19 +/- 13 16 +/- 9 21 +/- 11 22 +/- 11 15 +/- 8 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-8

Table C-V.2 CONCENTRATIONS OF GAMMA EMIITERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF E-3 PCI/CUBIC METER+/- 2 SIGMA COLLECTION SITE PERIOD Be-7 Mn-54 Co-58 Co-60 Cs-134 18 12/29/16 - 03/30/17 125 +/- 32

< 3

<4

< 4

< 4 03/30/17 - 06/29/1 7 113 +/- 23

< 2

< 3

< 2

< 2 06/29/17 - 09/28/17 85 +/- 22

< 2

< 3

< 3

< 2 09/28/17 - 12/28/17 68 +/- 18

< 2

< 3

< 2

< 2 MEAN+/- 2 STD DEV 98 +/- 52 1C 12/29/16 - 03/30/1 7 90 +/- 28

< 3

< 5

< 4

< 4 03/30/17 - 06/29/1 7 93 +/- 29

< 3

< 3

< 4

< 3 06/29/17 - 09/28/17 75 +/- 25

< 3

< 3

< 3

< 2 09/28/17 - 12/28/17 70 +/- 24

< 3

<4

< 3

< 3 MEAN+/- 2 STD DEV 82 +/- 23 12 12/29/16 - 03/30/17 111 +/- 37

< 3

< 4

< 4

< 4 03/30/17 - 06/29/17 119 +/- 26

< 3

< 3

< 3

< 3 06/29/17 - 09/28/17 112 +/- 27

< 3

< 3

< 3

< 2 09/28/17 - 12/28/1 7 62 +/- 26

< 3

< 4

< 3

< 3 MEAN+/- 2 STD DEV 101 +/- 53 3A 12/29/16 - 03/30/17 125 +/- 27

< 4

<4

< 4

< 3 03/30/17 - 06/29/17 100 +/- 18

< 2

< 3

< 2

< 2 06/29/17 - 09/28/17 90 +/- 33

< 3

< 5

< 3

< 4 09/28/17 - 12/28/17 107 +/- 38

< 3

< 5

< 3

< 4 MEAN+/- 2 STD DEV 105 +/- 30 5H2 01/03/17 - 04/03/17 77 +/- 26

< 3

< 3

< 2

< 3 04/03/17 - 07/03/17 60 +/- 18

< 2

< 2

< 3

< 3 07/03/17 - 10/02/17 49 +/- 19

< 3

< 3

< 3

< 2 10/02/17 - 01/02/18 59 +/- 17

< 2

< 2

< 3

< 2 MEAN+/- 2 STD DEV 61 +/- 23 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-9 Cs-137

< 4

< 2

< 2

< 1

< 3

< 3

< 2

< 3

< 4

< 3

< 2

< 2

< 3

< 2

< 3

< 3

< 2

< 3

< 2

< 2 J

Table C-Vl.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF E-3 PCI/CUBIC METER+/- 2 SIGMA COLLECTION GROUP I GROUP II GROUP Ill PERIOD 16 1C 1Z 3A 5H2 12/29/16 - 01/05/17

< 30

< 30

< 26

< 28 01 /03/17 - 01/09/17

< 13 01/05/17 - 01/12/17

< 52

< 52

< 16

< 45 01/09/17 - 01/17/17

< 34 01/12/17 - 01/19/17

< 51

< 51

< 14

< 44 01/17/17 - 01/24/17

< 21 01/19/17 - 01/26/17

< 50

< 50

< 23

< 44 01/24/17 - 01/30/17

< 16 01 /26/17 - 02/02/17

< 35

< 35

< 30

< 30 01 /30/17 - 02/06/17

< 19 02/02/17 - 02/08/17

< 39

< 39

< 17

< 34 02/06/17 - 02/13/17

< 24 02/08/17 - 02/16/17

< 66

< 56

< 25

< 50 02/13/17 - 02/21/17

< 12 02/16/17 - 02/23/17

< 47

< 47

< 40

< 42 02/21/17 - 02/27/17

< 15 02/23/17 - 03/02/17

< 48

< 48

< 17

< 41 02/27/17 - 03/06/17

< 15 03/02/17 - 03/09/17

< 40

< 40

< 35

< 34 03/06/17 - 03/13/17

< 15 03/09/17 - 03/16/17

< 47

< 47

< 39

< 42 03/13/17 - 03/20/17

< 13 03/16/17 - 03/23/1 7

< 45

< 45

< 15

< 39 03/20/17 - 03/27/17

< 19 03/23/17 - 03/30/17

< 32

< 32

< 27

< 28 03/27 /17 - 04/03/17

< 10 03/30/17 - 04/06/17

< 41

< 41

< 34

< 35 04/03/17 - 04/10/17

< 10 04/06/17 - 04/13/17

< 31

< 31

< 25

< 27 04/10/17 - 04/17/17

< 15 04/13/17 - 04/20/17

< 46

< 46

< 39

< 42 04/17/17 - 04/24/1 7

< 18 04/20/17 - 04/27/17

< 56

< 53

< 45

< 45 04/24/17 - 05/02/17

< 13 04/27/17 - 05/04/17

< 41

< 41

< 35

< 35 05/02/17 - 05/08/17

< 28 05/04/17 - 05/11/17

< 46

< 46

< 40

< 40 05/08/17 - 05/15/17

< 14 05/11/17 - 05/18/17

< 68

< 66

< 23

< 30 05/15/1 7 - 05/22/17

< 8 05/18/17 - 05/25/17

< 43

< 43

< 34

< 37 05/22/17 - 05/30/17

< 14 05/25/17 - 06/01 /17

< 49

< 48

< 16

< 44 05/30/17 - 06/05/17

< 23 06/01/17 - 06/08/17

< 47

< 47

< 40

< 40 06/05/17 - 06/12/17

< 16 06/08/17 - 06/15/17

< 34

< 34

< 29

< 29 06/12/1 7 - 06/19/17

< 15 06/15/17 - 06/22/17

< 51

< 45

< 40

< 16 06/19/17 - 06/27/17

< 16 06/22/17 - 06/29/17

< 53

< 52

< 45

< 45 06/27/17 - 07/03/17

< 19 06/29/17 - 07/06/17

< 58

< 52

< 42

< 44 07/03/17 - 07/11/17

< 15 07/06/17 - 07/13/17

< 65

< 61

< 52

< 52 C-10

Table C-Vl.1 CONCENTRATIONS OF 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF E-3 PC I/CUBIC METER+/- 2 SIGMA COLLECTION GROUP I GROUP II GROUP Ill PERIOD 18 1C 1Z 3A 5H2 07/11/17 - 07/17/1 7

< 30 07/13/17 - 07/20/17

< 63 (1)

< 48

< 51 07/17/17 - 07/24/17

< 15 07/20/17 - 07/27/17

< 42 41

< 34

< 36 07/24/17 - 07/31/17

< 11 07/27/17 - 08/03/17

< 38

< 38

< 32

< 33 07/31/17 - 08/08/17

< 15 08/03/17 - 08/10/17

< 47

< 47

< 38

< 39 08/08/17 - 08/14/17

< 24 08/1 0/17 - 08/17/17

< 46

< 46

< 40

< 41 08/14/17 - 08/22/17

< 10 08/17/17 - 08/24/17 (1)

< 49

< 43

< 42 08/22/17 - 08/28/17

< 17 08/24/17 - 08/31/17

< 19

< 66

< 57

< 57 08/28/17 - 09/05/17

< 14 08/31/17 - 09/07/17

< 17

< 40

< 35

< 36 09/05/17 - 09/11 /17

< 28 09/07/17 - 09/14/17

< 6

< 43

< 37

< 38 09/11 /17 - 09/19/17

< 14 09/14/17 - 09/21/17

< 23

< 54

< 46

< 49 09/19/1 7 - 09/25/17

< 21 09/21/1 7 - 09/28/17

< 19

< 44

< 38

< 39 09/25/17 - 10/02/17

< 18 09/28/17 - 10/05/17

< 15

< 34

< 30

< 32 10/02/17 - 10/10/17

< 30 10/05/17 - 10/12/17

< 12

< 53

< 46

< 47 10/10/17 - 10/16/17

< 19 10/12/17 - 10/19/17

< 23

< 30

< 47

< 49 10/16/17 - 10/23/17

< 25 10/19/17 - 10/26/17

< 15

< 36

< 32

< 33 10/23/1 7 - 10/30/17

< 19 10/26/1 7 - 11 /02/17

< 14

< 33

< 30

< 31 10/30/1 7 - 11 /06/17

< 12 11/02/17 - 11/09/17

< 12

< 24

< 25

< 26 11/06/17 - 11/13/17

< 15 11/09/17 - 11/16/17

< 23

< 49

< 43

< 45 11/13/17 - 11/20/17

< 18 11/16/17 - 11/22/17

< 51

< 60

< 55

< 55 11/20/17 - 11/27/17

< 17 11/22/17 - 11/30/17

< 30

< 36

< 32

< 33 11 /27 /1 7 - 12/04/17

< 14 11/30/17 - 12/07/17

< 19

< 23

< 20

< 21 12/04/17 - 12/11 /17

< 17 12/07/17 - 12/14/17

< 40

< 43

< 21

< 42 12/11/17 - 12/18/1 7

< 16 12/14/17 - 12/21/17

< 9

< 29

< 26

< 29 12/18/17 - 12/26/17

< 23 12/21/17 - 12/28/17

< 50

< 60

< 55

< 59 12/26/17 - 01/02/18

< 40 MEAN (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-11

Table C-Vll.1 CONCENTRATIONS OF LOW LEVEL 1-131 IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION CONTROL FARMS INDICATOR FARMS PERIOD C

E V

D J

L p

R s

u w

X 01/09/17

< 0.8

< 0.6

< 0.5

< 0.4

< 0.5

< 0.6 02/14/17

< 0.9

< 0.6

< 0.6

< 0.7

< 0.7

< 0.6

< 0.8

< 0.7

< 0.9

< 0.5

< 0.8

< 0.5 03/13/17

< 0.6

< 0.8

< 0.8

< 0.8

< 0.7

< 0.7 04/03/17

< 0.9

< 0.9

< 0.6

< 0.6

< 0.8

< 0.7 04/17/17

< 0.7

< 0.6

< 0.6

< 0.6

< 0.8

< 0.6 05/02/17

< 0.5

< 0.4

< 0.5

< 0.5

< 0.5

< 0.5

< 0.4

< 0.8

< 0.6

< 0.5

< 0.3

< 0.5 05/15/17

< 0.5

< 0.4

< 0.5

< 0.5

< 0.4

< 0.4 05/30/17

< 0.5

< 0.5

< 0.4

< 0.3

< 0.5

< 0.6 06/12/17

< 1.0

< 0.8

< 0.7

< 0.4

< 0.8

< 0.7 06/26/17

< 0.9

< 0.7

< 0.7

< 0.7

< 0.7

< 0.6 07/10/17

< 0.6

< 0.8

< 0.4

< 0.7

< 0.8

< 0.7

(")

07/24/17

< 0.8

< 0.6

< 0.7

< 0.8

< 0.8

< 0.8 I

08/08/17

< 0.5

< 0.7

< 0.9

< 0.6

< 0.6

< 0.5

< 0.7

< 0.7

< 0.6

< 0.8

< 0.5

< 0.6

~

I\\J 08/22/17

< 0.5

< 0.5

< 0.5

< 0.4

< 0.4

< 0.4 09/04/17

< 0.7

< 0.7

< 0.5

< 0.6

< 0.8

< 0.6 09/18/17

< 0.6

< 0.6

< 0.7

< 0.4

< 0.6

< 0.5 10/02/17

< 0.7

< 0.7

< 0.4

< 0.9

< 0.8

< 0.4 10/16/17

< 0.9

< 0.8

< 0.6

< 0.8

< 0.7

< 0.9 10/25/17

< 0.7 10/30/17

< 0.9

< 0.7

< 0.8

< 1.0

< 0.9 11/14/17

< 0.7

< 0.6

< 0.8

< 0.8

< 0.7

< 0.5

< 0.4

< 0.9

< 0.8

< 0.8

< 0.7

< 0.9 11/22/17

< 0.9 11/27/17

< 0.9

< 0.7

< 0.6

< 0.8

< 0.8 12/11/17

< 0.9

< 1.0

< 0.9

< 0.8

< 0.8

< 0.6 MEAN

Table C-Vll.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE PERIOD K-40 Cs-134 Cs-137 Ba-140 La-140 C

02/13/17 05/01/17 08/07/17 11 /13/17 MEAN+/- 2 STD DEV E

02/14/17 05/01/17 08/07/17 11/13/17 MEAN+/- 2 STD DEV V

01/07/17 02/11/17 03/13/17 03/31/17 04/17/17 04/29/17 05/13/17 05/27/17 06/10/17 06/24/17 07/10/17 07/24/17 08/04/17 08/18/17 09/02/17 09/16/17 10/02/17 10/13/17 10/25/17 11/13/17 11/22/17 12/09/17 MEAN+/- 2 STD DEV D

02/13/17 05/02/17 08/08/17 11/14/17 MEAN+/- 2 STD DEV 1201 +/- 137 1314 +/- 203 1400 +/- 193 1235 +/- 110 1288 +/- 177 1250 +/- 138 1283 +/- 164 1317 +/- 167 1178 +/- 140 1257 +/- 119 1183 +/- 167 1125 +/- 171 1348 +/- 188 1232 +/- 167 1290 +/- 135 1167 +/- 168 1254 +/- 160 1044 +/- 170 1270 +/- 177 1298 +/- 191 1336 +/- 200 1371 +/- 165 1268 +/- 240 1193 +/- 155 1021 +/- 183 1134 +/- 185 1171 +/- 138 1277 +/- 214 1139 +/- 166 1460 +/- 198 1227 +/- 190 1215 +/- 148 1228 +/- 209 1329 +/- 158 1314 +/- 198 1180 +/- 163 1331 +/- 125 1289 +/- 145

< 7

<9

< 9

< 5

< 8

< 10

< 11

< 6

< 6

< 7

< 9

<8

< 7

< 9

< 8

< 10

< 10

< 7

< 11

< 9

< 11

< 8

< 8

< 8

< 5

< 9

<9

< 10

< 8

< 7

< 6

< 8

< 8

< 6

< 7

< 9

< 8

< 5

< 8

<8

< 9

< 5

< 8

< 9

< 10

< 7

<6

<9

< 6

<8

<8

< 5

< 10

< 8

< 9

< 6

< 9

< 7

< 6

< 9

<8

< 8

< 8

< 6

<6

< 10

< 7

< 5

< 21

< 30

< 26

< 15

< 23

< 29

< 36

< 19

< 29

< 38

< 33

< 31

< 22

< 37

< 27

< 51

< 33

< 32

< 34

< 33

< 36

< 33

< 34

< 41

< 20

< 41

< 33

< 30

< 36

< 26

< 28

< 35

< 28

< 19 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-13

< 8

< 11

< 7

< 5

< 9

< 4

< 12

< 8

< 6

< 11

< 7

< 8

< 8

< 9

< 8

< 14

< 11

< 13

< 11

< 9

< 15

< 10

< 14

< 12

< 5

< 13

< 12

< 4

< 11

< 7

< 6

< 10

< 8

< 6

Table C-Vll.2 CONCENTRATIONS OF GAMMA EMITIERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 COLLECTION SITE PERIOD J

01/09/17 02/13/17 03/13/17 04/03/17 04/17/17 05/01/17 05/15/17 05/30/1 7 06/12/1 7 06/26/1 7 07/10/17 07/24/17 08/07/17 08/21/17 09/04/17 09/18/17 10/02/17 10/16/17 10/30/17 11/13/17 11/27/17 12/11/17 MEAN+/- 2 STD DEV L

02/13/17 05/02/1 7 08/08/17 11/14/17 MEAN+/- 2 STD DEV p

02/13/1 7 05/01/17 08/07/17 11/13/17 MEAN+/- 2 STD DEV RES UL TS IN UNITS OF PCI/LITER +/- 2 SIGMA K-40 1385 +/- 161 1328 +/- 164 1290 +/- 197 1225 +/- 182 1334 +/- 125 1422 +/- 163 1339 +/- 136 1223 +/- 192 1291 +/- 128 1338 +/- 148 1372 +/- 158 1064 +/- 171 1569 +/- 205 1290 +/- 179 1089 +/- 189 1171 +/- 140 1244 +/- 187 1260 +/- 188 1205 +/- 169 1167 +/- 205 1396 +/- 157 1313 +/- 142 1287 +/- 227 1240 +/- 118 1414 +/- 187 1375 +/- 190 1171 +/- 133 1300 +/- 228 1156 +/- 135 1261 +/- 183 1196 +/- 193 1194 +/- 158 1202 +/- 87 Cs-134

< 6

< 7

< 10

< 10

< 5

< 9

< 6

< 9

< 5

< 7

< 6

< 9

< 8

< 11

< 8

< 7

< 13

< 8

<9

< 10

< 6

< 9

< 5

< 10

< 11

< 9

< 5

<8

< 8

< 9 Cs-137

< 7

< 7

< 10

< 10

<4

< 8

< 5

< 8

< 5

< 5

< 7

< 9

< 8

< 8

< 7

< 5

< 10

< 8

< 7

< 9

< 6

< 8

< 5

< 8

< 10

< 9

< 6

< 7

< 8

< 9 Ba-140

< 27

< 24

< 25

< 31

< 19

< 31

< 14

< 40

< 21

< 22

< 22

< 24

< 33

< 39

< 33

< 34

< 42

< 24

< 25

< 39

< 19

< 34

< 19

< 34

< 37

< 28

< 24

< 34

< 26

< 32 La-140

< 8

< 9

< 6

< 11

< 6

< 10

< 5

< 8

< 5

< 6

< 7

< 8

< 10

< 11

< 11

< 10

< 8

< 6

< 6

< 13

< 4

< 7

< 5

< 9

< 10

< 8

< 7

< 4

< 8

< 9 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-14

Table C-Vll.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE PERIOD K-40 Cs-134 Cs-137 Ba-140 La-140 R

01/09/17 1234 +/- 224

< 9

< 10

< 39

< 9 02/13/17 1265 +/- 156

< 8

< 9

< 36

< 9 03/13/17 1270 +/- 225

< 11

< 9

< 36

< 10 04/03/17 1178 +/- 167

<8

< 8

< 22

< 7 04/17/17 1258 +/- 175

< 8

< 7

< 21

< 8 05/01/17 1433 +/- 196

< 7

< 8

< 29

< 7 05/15/17 1342 +/- 190

< 7

< 7

< 19

< 6 05/30/17 1545 +/- 224

< 9

< 9

< 40

< 15 06/12/17 1283 +/- 186

<8

< 8

< 27

< 9 06/26/17 1444 +/- 220

< 8

< 8

< 30

< 5 07/10/17 1364 +/- 156

< 7

< 7

< 24

< 6 07/24/17 1180 +/- 156

< 9

< 7

< 24

< 7 08/07/17 1504 +/- 227

< 10

< 12

< 34

< 10 08/21/1 7 1409 +/- 193

< 11

< 11

< 46

< 15 09/04/17 1250 +/- 222

< 11

< 10

< 41

< 14 09/18/17 1325 +/- 159

< 7

< 7

< 40

< 10 10/02/17 1179 +/- 195

< 10

<8

< 31

< 15 10/16/17 1398 +/- 161

< 7

< 6

< 25

< 5 10/30/17 1259 +/- 184

< 11

< 8

< 30

< 6 11 /13/17 1069 +/- 201

< 11

< 10

< 29

< 9 11/27/17 1266 +/- 192

<9

< 9

< 31

< 7 12/11/17 1241 +/- 171

< 7

< 7

< 26

< 10 MEAN+/- 2 STD DEV 1304 +/- 232 s

01/09/17 1369 +/- 204

< 8

< 9

< 27

< 7 02/13/17 1712 +/- 186

< 7

< 6

< 29

< 9 03/13/17 1237 +/- 196

< 7

< 9

< 29

< 9 04/03/17 1262 +/- 203

< 7

< 9

< 32

< 9 04/1 7/17 1229 +/- 136

< 6

<6

< 24

< 6 05/01/17 1139 +/- 204

< 9

< 8

< 41

< 7 05/15/17 1273 +/- 136

< 6

< 7

< 19

< 5 05/30/17 1530 +/- 206

< 9

< 9

< 43

< 8 06/12/17 1296 +/- 166

< 6

< 7

< 25

< 8 06/26/17 1337 +/- 180

< 7

< 8

< 28

< 10 07/10/17 1033 +/- 211

< 13

<9

< 30

< 9 07/24/17 1217 +/- 144

< 6

< 6

< 22

< 6 08/07/17 1171 +/- 174

< 9

< 10

< 35

< 9 08/21/17 1261 +/- 184

< 6

< 7

< 37

< 14 09/04/17 1158 +/- 164

< 9

< 10

< 32

< 12 09/1 8/17 1189 +/- 171

< 9

< 8

< 40

< 9 10/02/17 1465 +/- 214

< 9

<8

< 34

< 12 10/16/17 1477 +/- 229

< 14

< 12

< 40

< 13 10/30/17 1339 +/- 171

< 11

< 11

< 40

< 11 11/13/17 1289 +/- 187

< 10

<6

< 32

< 7 11/27/17 1320 +/- 168

< 7

< 7

< 25

< 8 12/11/17 1209 +/- 180

< 8

<9

< 26

< 10 MEAN +/- 2 STD DEV 1296 +/- 297 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-15

Table C-Vll.2 CONCENTRATIONS OF GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE PERIOD K-40 Cs-134 Cs-137 Ba-140 La-140 u

01/09/17 1273 +/- 208

< 8

< 8

< 35

< 9 02/13/17 1181 +/- 135

< 6

< 6

< 23

< 7 03/13/17 1107 +/- 207

< 10

< 9

< 39

< 11 04/03/17 1218 +/- 153

< 9

< 8

< 27

< 8 04/17/17 1302 +/- 158

< 7

< 7

< 25

< 6 05/01/17 1293 +/- 172

< 8

< 7

< 23

< 12 05/15/17 1185 +/- 174

< 10

<9

< 31

<8 05/30/17 1321 +/- 203

< 12

<9

< 48

< 14 06/12/17 1259 +/- 154

< 8

< 7

< 25

< 7 06/26/17 889 +/- 194

< 12

< 11

< 40

< 9 07/10/17 1177 +/- 188

< 10

< 8

< 30

< 5 07/24/17 995 +/- 150

< 8

< 7

< 25

< 7 08/07/17 1217 +/- 167

< 11

< 11

< 45

< 13 08/22/17 1347 +/- 227

< 13

< 9

< 44

< 8 09/04/17 1088 +/- 158

< 6

<9

< 29

< 7 09/18/17 1195 +/- 212

< 12

< 11

< 46

< 14 10/02/17 1301 +/- 169

< 8

< 8

< 33

< 11 10/16/17 1145 +/- 188

< 7

< 7

< 36

< 10 10/30/17 1177 +/- 160

< 10

< 9

< 30

< 11 11/13/17 1090 +/- 151

< 12

< 11

< 45

< 12 11/27/17 1152 +/- 200

< 11

< 11

< 30

< 11 12/11/17 1140 +/- 147

< 8

<8

< 29

< 10 MEAN +/- 2 STD DEV 1184 +/- 219 w

02/14/17 1307 +/- 148

< 6

< 6

< 20

< 6 05/02/17 1289 +/- 201

< 9

< 7

< 23

< 9 08/08/17 1537 +/- 192

< 11

< 11

< 42

< 12 11/14/17 1149 +/- 116

< 6

< 6

< 20

< 6 MEAN+/- 2 STD DEV 1321 +/- 321 X

01/09/17 1401 +/- 170

<8

< 9

< 34

< 9 02/13/17 1412 +/- 177

< 8

< 6

< 25

< 8 03/13/17 1296 +/- 163

< 10

< 9

< 33

< 6 04/03/17 1378 +/- 158

< 7

< 8

< 22

< 6 04/17/17 1405 +/- 135

< 9

< 8

< 33

< 7 05/01/17 1382 +/- 166

< 7

< 7

< 23

< 8 05/15/17 1205 +/- 189

< 7

< 7

< 29

< 9 05/30/17 1210 +/- 182

< 13

< 13

< 52

< 12 06/12/17 1266 +/- 126

< 8

< 8

< 27

< 7 06/26/17 1254 +/- 218

< 10

< 9

< 33

< 11 07/10/17 1292 +/- 163

< 12

< 10

< 38

< 10 07/24/17 1153 +/- 140

< 9

< 9

< 31

< 7 08/07/17 1302 +/- 175

< 10

<8

< 29

< 5 08/21/17 1231 +/- 199

< 10

<9

< 39

< 7 09/04/17 1382 +/- 161

< 10

<8

< 32

< 7 09/18/17 988 +/- 185

< 10

< 8

< 49

< 9 10/02/17 1301 +/- 201

< 9

< 9

< 36

< 11 10/16/17 1218 +/- 173

< 7

< 7

< 31

< 9 10/30/17 1218 +/- 198

< 11

< 9

< 35

< 8 11/13/17 1274 +/- 154

< 7

< 7

< 24

< 7 11/27/17 1295 +/- 194

< 9

< 7

< 29

< 6 12/11/17 1258 +/- 156

< 8

< 8

< 26

< 7 MEAN +/- 2 STD DEV 1278 +/- 197 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES C-16

Table C-Vlll.1 CONCENTRATIONS OF GAMMA EMITTERS IN FOOD PRODUCT SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/KG WET+/- 2 SIGMA COLLECTION SITE PERIOD VEGETATION TYPE Be-7 K-40 Mn-54 Co-58 Co-60 1-131 Cs-134 Cs-137 18 <1>

06/21/17 Swiss Chard

< 436 1957 +/- 629

< 54

< 40

< 38

< 57

< 53

< 53 06/21/17 Collards

< 293 1484 +/- 573

< 36

< 32

< 37

< 41

< 43

< 42 06/21 /1 7 Cabbage

< 355 1357 +/- 534

< 50

< 44

< 55

< 49

< 48

< 56 07/19/17 Cabbage

< 250 2064 +/- 734

< 45

< 52

< 47

< 50

< 43

< 53 07/19/17 Swiss Chard 553 +/- 393 1440 +/- 526

< 51

< 52

< 44

< 51

< 54

< 58 MEAN+/- 2 STD DEV 553 +/- 0 1660 +/- 650 1C 06/21/17 Kale

< 387 3339 +/- 725

< 38

< 35

< 41

< 42

< 39

< 45 06/21/17 Cabbage

< 393 4296 +/- 849

< 41

< 39

< 47

< 40

< 37

< 60 06/21/17 Com Leaves 637 +/- 320 21 82 +/- 560

< 26

< 31

< 30

< 37

< 30

< 35 07/19/17 Kale

< 294 1355 +/- 437

< 28

< 28

< 35

< 43

< 32

< 34 07/19/17 Cabbage

< 353 2104 +/- 719

< 50

< 41

< 51

< 58

< 53

< 53 07/19/17 Collards

< 426 1575 +/- 652

< 41

< 43

< 41

< 48

< 45

< 49 08/16/17 Kale 569 +/- 277 1607 +/- 446

< 25

< 23

< 21

< 30

< 28

< 31 0

08/16/17 Cabbage Leaves

< 286 982 +/- 345

< 30

< 29

< 38

< 38

< 40

< 36 I _..

08/16/17 Collard Leaves

< 392 1373 +/- 389

< 35

< 33

< 37

< 46

< 42

< 36 09/13/17 Collard Leaves

< 105 2176+/-194

< 12

< 11

< 11

< 40

< 13

< 11 09/13/17 Cabbage Leaves

< 174 1331 +/- 232

< 16

< 18

< 14

< 58

< 18

< 19 09/13/17 Field Com Leaves 3689 +/- 178 2293 +/- 208

< 12

< 11

< 11

< 40

< 12

< 12 MEAN+/- 2 STD DEV 1632 +/- 3564 2051 +/- 1890 2Q 06/21/17 Kale

< 233 5204 +/- 775

< 32

< 30

< 39

< 31

< 31

< 32 06/21/17 Cabbage

< 317 3115+/-718

< 37

< 31

< 28

< 35

< 36

< 37 06/21/17 Cauliflower

< 314 3659 +/- 659

< 30

< 27

< 34

< 31

< 33

< 24 07/19/17 Cabbage

< 269 2451 +/- 432

< 25

< 30

< 31

< 32

< 32

< 33 07/19/17 Broccoli

< 286 2257 +/- 577

< 29

< 21

< 25

< 31

< 26

< 24 07/19/17 Cauliflower 427 +/- 242 2233 +/- 555

< 37

< 33

< 35

< 38

< 41

< 39 08/16/17 Cabbage Leaves 481 +/- 237 2550 +/- 583

< 19

< 25

< 35

< 29

< 29

< 28 08/16/17 Broccoli Leaves

< 318 2553 +/- 574

< 28

< 24

< 33

< 33

< 28

< 32 08/16/17 Sweet Com Leaves 3008 +/- 387 4072 +/- 621

< 26

< 28

< 21

< 35

< 36

< 27 09/13/17 Cabbage Leaves

< 189 2364 +/- 288

< 18

< 18

< 17

< 53

< 18

< 18 09/13/17 Broccoli Leaves

< 139 2023 +/- 201

< 13

< 15

< 12

< 42

< 14

< 14 09/13/17 Cauliflower Leaves 492 +/- 134 2295 +/- 256

< 13

< 13

< 13

< 42

< 15

< 13 MEAN+/- 2 STD DEV 1102 +/- 2542 2898 +/- 1910 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-Vlll.1 CONCENTRATIONS OF GAMMA EMITTERS IN FOOD PRODUCT SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/KG WET+/- 2 SIGMA COLLECTION SITE PERIOD VEGETATION TYPE Be-7 K-40 Mn-54 Co-58 Co-60 1-131 Cs-134 Cs-137 3Q 06/21/17 Cabbage

< 402 5377 +/- 1008

< 56

< 52

< 52

< 50

< 53

< 52 06/21/17 Collards 332 +/- 182 4697 +/- 791

< 26

< 27

< 44

< 38

< 35

< 25 06/21/17 Kate

< 314 4484 +/- 574

< 36

< 33

< 33

< 42

< 41

< 40 07/19/17 Collards

< 357 4190 +/- 755

< 43

< 37

< 34

< 43

< 49

< 44 07/19/17 Cabbage 585 +/- 297 3158 +/- 702

< 29

< 34

< 37

< 36

< 33

< 35 07/19/17 Kate

< 311 3733 +/- 789

< 37

< 35

< 36

< 41

< 37

< 36 08/16/17 Cabbage Leaves

< 278 2131 +/- 542

< 31

< 29

< 35

< 30

< 35

< 25 08/16/17 Kale Leaves

< 326 3158 +/- 669

< 40

< 33

< 32

< 38

< 49

< 38 08/16/17 Collard Leaves

< 359 4581 +/- 737

< 33

< 24

< 33

< 35

< 38

< 33 09/13/17 Kale Leaves 236 +/- 183 4230 +/- 436

< 17

< 22

< 20

< 58

< 20

< 19 09/13/17 Sweet Com Leaves 4232 +/- 208 4608 +/- 321

< 14

< 15

< 15

< 47

< 18

< 16 09/13/17 Collard Leaves

< 135 4592 +/- 227

< 13

< 14

< 13

< 46

< 15

< 14 MEAN+/- 2 STD DEV 1346 +/- 3859 4078 +/- 1776 0

55 06/21/17 Cabbage

< 277 4588 +/- 692 I

< 31

< 23

< 31

< 37

< 35

< 28

~

06/21/17 Kate

< 382 5490 +/- 746

< 42

< 40

< 44

< 42

< 47

< 44 00 06/21/17 Collards

< 289 5484 +/- 805

< 38

< 38

< 35

< 40

< 49

< 30 07/19/17 Kate 347 +/- 200 3666 +/- 565

< 28

< 32

< 31

< 35

< 34

< 32 07/19/17 Cabbage 395 +/- 211 4348 +/- 653

< 48

< 32

< 48

< 46

< 42

< 44 07/19/17 Collards

< 269 4435 +/- 570

< 26

< 18

< 24

< 34

< 24

< 22 08/16/17 Collard Leaves 498 +/- 334 4029 +/- 578

< 29

< 25

< 32

< 30

< 32

< 29 08/16/17 Kate Leaves

< 289 2942 +/- 561

< 31

< 31

< 32

< 37

< 32

< 32 08/16/17 Cabbage Leaves 1093 +/- 294 2753 +/- 505

< 36

< 37

< 38

< 41

< 42

< 37 09/13/17 Cabbage Leaves 189 +/- 107 4676 +/- 267

< 10

< 11

< 12

< 33

< 11

< 11 09/13/17 Collard Leaves 494 +/- 130 4377 +/- 293

< 12

< 13

< 12

< 42

< 13

< 12 09/13/17 Kale Leaves 680 +/- 126 3830 +/- 264

< 12

< 13

< 14

< 43

< 14

< 13 MEAN+/- 2 STD DEV 528 +/- 583 4218 +/- 1697 x <1) 08/16/17 Sweet Com Leaves 3593 +/- 426 2895 +/- 612

< 36

< 20

< 28

< 35

< 38

< 32 08/16/17 Squash Leaves 1139 +/- 306 3978 +/- 639

< 31

< 26

< 23

< 30

< 36

< 34 08/16/17 Green Bean Leaves 994 +/- 264 4183 +/- 585

< 28

< 31

< 30

< 38

< 34

< 34 09/13/17 Squash Leaves 918 +/- 205 2847 +/- 364

< 17

< 19

< 18

< 58

< 21

< 19 09/13/17 Radish Leaves 315 +/- 145 4105 +/- 393

< 15

< 18

< 15

< 55

< 18

< 17 09/13/17 Field Com Leaves 2962 +/- 204 3275 +/- 302

< 15

< 16

< 15

< 50

< 17

< 15 MEAN+/- 2 STD DEV 1654 +/- 2608 3547 +/- 1230 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION

Table C-IX.1 QUARTERLY OSLD RESULTS FOR PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF MILLI REM/STD. MONTH+/- STANDARD DEVIATIONS STATION MEAN CODE

+/- 2 S.D.

JAN - MAR APR - JUN JUL-SEP OCT-DEC 2

9.0 +/- 1.4 10.0 8.6 8.5 8.9 5

8.6 +/- 1.8 9.8 8.0 8.8 7.9 14 8.8 +/- 1.2 9.7 8.5 8.8 8.3 15 9.4 +/- 1.6 10.5 9.2 9.1 8.7 16 9.0 +/- 2.9 11.1 8.5 8.5 7.8 17 10.3 +/- 2.2 11.9 9.9 9.4 9.8 18 9.3 +/- 1.2 10.1 9.1 9.1 8.7 19 7.6 +/- 1.6 8.7 7.4 7.0 7.1 1A 9.4 +/- 1.7 10.5 9.5 9.2 8.5 1B 8.0 +/- 1.4 9.0 7.6 7.9 7.5 1C 9.1 +/- 1.8 10.4 8.7 8.8 8.4 1D 9.3 +/- 1.9 10.6 8.9 9.2 8.3 1E 8.9 +/- 1.4 9.8 8.3 9.1 8.3 1F 10.3 +/- 2.1 11.8 10.0 9.9 9.4 1G 6.2 +/- 2.4 8.0 5.7 5.7 5.5 1H 8.9 +/- 1.7 10.1 8.4 8.8 8.2 11 8.3 +/- 1.7 9.5 7.9 8.0 7.7 1J 10.4 +/- 1.9 11.8 9.9 10.4 9.6 1K 10.1 +/- 1.8 11.3 10.0 9.7 9.2 1L 7.4 +/- 2.5 9.2 6.4 7.3 6.8 1M 5.8 +/- 1.9 7.2 5.2 5.6 5.3 1P 6.6 +/- 2.2 8.2 6.0 6.3 5.9 1Q 7.6 +/- 1.7 8.8 7.4 7.3 6.8 1R 12.4 +/- 1.6 13.4 12.2 12.4 11.4 1T 9.2 +/- 1.9 10.4 8.7 9.5 8.3 22 9.2 +/- 1.9 10.6 8.9 8.7 8.6 23 9.5 +/- 1.3 10.4 9.2 9.5 8.9 24 6.7 +/- 0.8 (1) 6.6 7.2 6.4 26 10.1 +/- 3.0 12.0 9.9 10.0 8.3 27 9.3 +/- 1.5 10.4 8.8 9.3 8.8 2B 8.5 +/- 2.0 9.9 8.0 7.7 8.2 32 9.7+/-1.8 10.9 8.9 9.9 9.2 3A 7.2+/-1.9 8.6 6.7 6.7 6.6 40 10.5 +/- 1.9 11.9 10.0 10.2 9.8 42 8.4 +/- 1.6 9.5 8.4 8.0 7.7 43 10.0 +/- 2.4 11.7 9.5 9.7 8.9 44 8.8 +/- 1.9 10.2 8.1 8.5 8.4 45 9.5 +/- 2.0 10.9 9.1 9.3 8.5 46 8.3 +/- 2.1 9.7 7.4 8.3 7.6 47 9.7 +/- 1.3 10.6 9.5 9.6 9.1 48 9.5 +/- 2.0 10.7 8.9 9.8 8.5 49 9.5 +/- 2.8 11.6 8.9 8.9 8.6 4K 6.2 +/- 1.9 7.5 6.0 6.2 5.2 50 10.5 +/- 1.9 11.8 10.1 10.2 9.7 51 9.0 +/- 1.8 10.2 8.4 9.2 8.3 6B 7.9 +/- 1.7 9.0 7.3 7.2 8.1 1NN 9.9 +/- 1.7 10.8 9.4 10.4 9.0 31A 7.8 +/- 1.7 9.1 7.5 7.4 7.3 (1) SEE PROGRAM EXCEPTIONS SECTION FOR EXPLANATION C-19

SITE BOUNDARY STATIONS 1A, 1B, 1C, 10, 1E, 1F, 1G, 1H, 11, 1J, 1K, 1L, 1M, 1NN, 1P, 1Q, 1R, 1T, 2, 2B, 40 INTERMEDIATE STATIONS 14, 15, 17, 22, 23, 26,27, 31A, 32, 3A, 42, 43, 44, 45, 46, 47, 48, 49, 4K, 5, 50, 51, 6B CONTROL STATIONS 16, 18, 19, 24 Table C-IX.2 MEAN QUARTERLY OSLO RESULTS FOR THE SITE BOUNDARY, INTERMEDIATE, AND CONTROL LOCATIONS FOR PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF MILLI-ROENTGEN/MONTH STANDARD DEVIATIONS OF THE STATION DATA COLLECTION PERIOD JAN-MAR APR-JUN JUL-SEP OCT-DEC Table C-IX.3 LOCATION SITE BOUNDARY INTERMEDIATE CONTROL SITE BOUNDARY INTERMEDIATE CONTROL

+/- 2 S.D.

+/- 2 S.D.

+/- 2 S.D.

10.1 +/- 2.9 10.3 +/- 2.3 10.0 +/- 2.4 8.4 +/- 3.4 8.6 +/- 2.1 7.9 +/- 2.2 8.7 +/- 3.3 8.8 +/- 2.1 8.0 +/- 2.0 8.1 +/- 3.0 8.3 +/- 2.0 7.5 +/- 2.0

SUMMARY

OF THE AMBIENT DOSIMETRY PROGRAM FOR PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF MILLI-ROENTGEN/STD. MONTH SAMPLES PERIOD PERIOD PERIOD MEAN ANALYZED MINIMUM MAXIMUM

+/- 2 S.D.

76 5.2 13.4 8.8 +/- 3.4 92 5.2 12.0 9.0 +/- 2.5 23 6.4 11.1 8.2 +/- 2.5 C-20

(")

I I\\)

FIGURE C-1 MONTHLY TOTAL GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 2017 15

~

CONTROL - 61 12

-+- INDICATOR-4L

~

INDICATOR-13B LLDValue L...

9 Q)

Investigation Level

~ ' u

a.

6

~ '

,A ~

t"" x. -

~ ~"'-~

...I

~

/

_....,ill ~ --~

r- \\ (

~.~.

I a

~ -

~ ~

I 0

"1 I 3

0 JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH

6-Bottom Feeder 6-Bottom Feeder 6-Predator n

I l'v l'v 6-Predator 4-Bottom Feeder 4-Bottom Feeder 4-Predator 4-Predator I

I I

I FIGURE C-2 MDC RESULTS FOR FISH SAMPLING COLLECTED IN THE VICINITY OF PBAPS, 2017 2001-2016 Historical Average Cs-137 40 and 47 pCi/kg (wet) (location 4, 6)

,*,,- -~

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_J LLD for Mn-54, Co-58/60, Cs-134 130 pCi/kg (wet)

LLD for Cs-137 150 ]Ci/kg (wet)

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Zn-65 I 260 pCi/kg (wet)

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0 20 40 60 100 80 120 140 160 180 MDC (pCi/kg wet)

Mn-54

  • Co-58
  • Fe-59
  • Zn-65 Cs-134

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w FIGURE C-3 SEMI-ANNUAL CS-137 CONCENTRATIONS IN SEDIMENT SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 2017 200 180 160 140

> 120

~

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b.O 100

~

0 80

a.

60 40 20 0

Positive Sample Results, less than Investigation Level No Reporting Level for Cs-137 Activity Investigation Level = 1000 pCi/kg (dry) lH 2017 4J {IND.)

2017 6F (CON.)

              • 2000-2016 Historical Avg IND.

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LLD

  • 2000-2016 Historical Avg CON.

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w FIGURE C-4 MEAN WEEKLY GROSS BETA CONCENTRATIONS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 2017 150 5

1 5

GROUP I (Indicator)

GROUP Ill (Control)

GROUP II (Indicator)

LLD Investigate Level


1980-1990 Historical Average 1970-1980 Historical Average

  • * * *
  • 1990-2010 Historical Average
  • 2010-2016 Historical Average 9

13 17 21 25 29 33 37 41 WEEK NO.

No Required Reporting Level for Gross Beta Activities 45 49

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FIGURE C-5 AVERAGE MONTHLY MDC RESULTS FOR REMP MILK SAMPLES COLLECTED IN THE VICINITY OF PBAPS, 2017 12 10 8

Cs-134 LLD = 15 pCi/L Cs-137 LLD= 18 pCi/L Reporting Levels 1-131 = 3 pCi/L Cs-134 = 60 pCi/L Cs-137 = 70 pCi/L C.

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~ 4 2

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Feb.

Mar.

Apr.

May Jun.

Jul.

Aug.

Sep.

Oct.

Nov.

Dec.

-e-1-131 Control Locations 1-131 LLD

....-cs-134 Indicator Locations

....-cs-137 Indicator Locations

.....-1-131 Indicator Locations

-*- Cs-134 Control Locations

-*- Cs-137 Control Locations

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a, FIGURE C-6 MEAN QUARTERLY AMBIENT GAMMA RADIATION LEVELS IN THE VICINITY OF PBAPS 1973 - 2017 12 10


*- SITE BOU ND ARY

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---B-CONTROL PRE-OP BKGD 0

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73 77 81 85 89 OSLD technology use began January 2012, TLD technology ended December 2011. For only OSLD data, Gross mRem ner standard month is reoorted.

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0 FIGURE C-7 ISFSI AND CONTROL OSLO RESULTS COMPARED TO PRE-OPERATION HISTORICAL VALUES 2012 2013 2014 2015 2016 2017 lR 28 lA c:=::J lD Controls

- - Pre-Op

            • Pre-OP+ Transit

Intentionally left blank

APPENDIX D DATA TABLES AND FIGURES QC LABO RA TORY

Intentionally left blank

TABLE D-1.1 CONCENTRATIONS OF GROSS BETA SOLUBLE IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 4L Lab 12/29/16 - 02/02/17 0.9 +/- 0.6 EIS 02/02/17 - 03/02/17 1.3 +/- 0.6 EIS 03/02/17 - 03/30/17 0.9 +/- 0.6 EIS 03/30/17 - 04/27/17 1.8 +/- 0.6 EIS 04/27/17 - 06/01/17 1.6 +/- 0.6 EIS 06/01 /17 - 06/29/17 2.5 +/- 0.7 EIS 06/29/17 - 07/27/17 3.0 +/- 0.7 EIS 07/27/17 - 08/31/17 1.9 +/- 0.7 EIS 08/31/17 - 09/28/17 2.5 +/- 0.7 EIS 09/28/17 - 11 /02/17 1.3 +/- 0.8 EIS 11/06/17 - 11/29/17 1.4 +/- 0.6 EIS 11 /30/17 - 12/28/17 2.3 +/- 0.7 EIS MEAN +/- 2 STD DEV 1.8 +/- 1.4 THE MEAN AND TWO STANDARD DEVIATION ARE CALCULATED USING THE POSITIVE VALUES D-1

TABLE D-1.2 TABLE D-1.3 CONCENTRATIONS OF TRITIUM IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 12/29/16 -

03/30/17 03/30/17 -

06/29/1 7 06/29/17 -

09/28/17 09/28/17 -

12/28/17 MEAN 4L

< 192

< 109

< 115

< 135 Lab GEL GEL GEL GEL CONCENTRATIONS OF 1-131 IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION PERIOD 4L Lab 12/29/16 - 02/02/17

< 0.7 EIS 02/02/17 - 03/02/17

< 0.7 EIS 03/02/17 - 03/30/17

< 0.7 EIS 03/30/17 - 04/27/17

< 0.9 EIS 04/27/17 - 06/01/17

< 0.3 EIS 06/01 /17 - 06/29/1 7

< 0.8 EIS 06/29/17 -

07/27/17

< 0.6 EIS 07/27/17 -

08/31/17

< 0.3 EIS 08/31/17 -

09/28/17

< 0.7 EIS 09/28/17 -

11/02/17

< 0.5 EIS 11/06/17 -

11/29/17

< 0.6 EIS 11/30/17 -

12/28/17

< 0.8 EIS MEAN D-2

TABLE D-1.4 CONCENTRATIONS OF GAMMA EMITTERS IN DRINKING WATER SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PC I/LITER +/- 2 SIGMA COLLECTION SITE PERIOD Mn-54 Fe-59 Co-58 Co-60 Zn-65 Zr-95 Nb-95 Cs-134 Cs-137 Ba-140 La-140 Lab 4L 12/29/16 - 02/02/17

< 3

< 7

< 4

< 4

< 8

< 6

< 4

< 4

<4

< 5

< 5 EIS 02/02/17 - 03/02/17

<4

< 8

< 4

< 4

< 7

< 8

< 4

< 4

<4

< 8

< 8 EIS 03/02/17 - 03/30/17

< 1

< 3

< 2

< 2

< 3

< 3

< 2

< 1

< 2

< 3

< 2.8 EIS 03/30/17 - 04/27/17

<4

< 8

< 4

< 4

< 8

< 6

< 5

< 4

<4

< 8

< 8.3 EIS 04/27/17 - 06/01/17

< 3

< 7

< 3

< 4

< 9

< 6

< 3

< 4

< 4

< 5

< 4.7 EIS 06/01/17 - 06/29/17

< 3

< 7

< 3

< 3

< 6

< 6

< 4

< 3

< 3

< 9

< 9.5 EIS 06/29/17 - 07/27/17

< 4

< 9

< 3

< 4

< 8

< 7

< 3

< 4

< 4

< 8

< 8 EIS 07/27/17 - 08/31/17

< 5

< 11

< 4

< 5

< 10

< 8

< 5

< 4

< 4

< 8

< 8.3 EIS 08/31/17 - 09/28/17

< 5

< 10

< 5

< 4

< 12

< 8

< 5

< 4

< 5

< 9

< 9 EIS 09/28/17 - 11/02/17

< 3

< 6

< 3

< 3

< 6

< 5

< 3

< 3

< 3

<4

< 4 EIS 11/06/17 - 11/29/17

<4

< 11

< 5

< 5

< 10

< 7

< 5

< 4

< 5

< 10

< 9.7 EIS 11/30/17 - 12/28/17

<4

< 10

< 5

< 5

< 11

< 9

< 5

< 4

< 5

< 11

< 11 EIS C

MEAN I

(,I)

TABLE D-11.1 CONCENTRATIONS OF GROSS BETA IN AIR PARTICULATE AND 1-131 IN AIR IODINE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF E-3 PCI/CU METER+/- 2 SIGMA COLLECTION 1A 1A PERIOD GROSS BETA 1-131 12/29/16 - 01/05/17 30 +/- 3

< 18 01/05/17 - 01/12/17 33 +/- 3

< 14 01/12/17 - 01/19/17 41 +/- 3

< 13 01 /19/17 - 01/26/17 26 +/- 2

< 18 01/26/17 - 02/02/17 28 +/- 2

< 16 02/02/17 - 02/08/17 49 +/- 3

< 26 02/08/17 - 02/16/17 35 +/- 3

< 17 02/16/17 - 02/23/17 41 +/- 3

< 16 02/23/17 - 03/02/17 35 +/- 3

< 10 03/02/17 - 03/09/17 33 +/- 3

< 14 03/09/17 - 03/16/17 24 +/- 3

< 18 03/16/17 - 03/23/17 36 +/- 3

< 14 03/23/17 - 03/30/17 33 +/- 3

< 13 03/30/17 - 04/06/17 13 +/- 2

< 13 04/06/17 - 04/13/17 23 +/- 3

< 16 04/13/17 - 04/20/17 26 +/- 3

< 11 04/20/17 - 04/27/17 12 +/- 2

< 17 04/27/17 - 05/04/17 28 +/- 2

< 14 05/04/17 - 05/11/17 26 +/- 2

< 23 05/11/17 - 05/18/17 23 +/- 2

< 13 05/18/17 - 05/25/17 22 +/- 2

< 10 05/25/17 - 06/01/17 11 +/- 2

< 14 06/01/17 - 06/08/17 27 +/- 2

< 16 06/08/17 - 06/15/17 37 +/- 3

< 16 06/15/17 - 06/22/17 28 +/- 2 9

06/22/17 - 06/29/17 26 +/- 2

< 16 06/29/17 -

07/06/17 40 +/- 3

< 16 07/06/17 -

07/13/17 34 +/- 3

< 19 07/13/17 -

07/20/17 32 +/- 3

< 12 07 /20/17 -

07 /27 /17 32 +/- 3

< 26 07/27/17 - 08/03/17 33 +/- 3

< 12 08/03/17 - 08/10/17 27 +/- 2

< 12 08/10/17 - 08/17/17 37 +/- 3 9

08/17/17 - 08/24/17 40 +/- 3 8

08/24/17 - 08/31/17 32 +/- 2

< 16 08/31/17 - 09/07/17 25 +/- 3

< 11 09/07/17 - 09/14/17 24 +/- 3

< 11 09/14/17 - 09/21/17 43 +/- 3

< 19 09/21/17 - 09/28/17 49 +/- 3

< 13 09/28/17 - 10/05/17 28 +/- 3

< 19 10/05/17 - 10/12/17 33 +/- 3 9

10/12/17 - 10/19/17 30 +/- 2

< 14 10/19/17 - 10/26/17 40 +/- 3

< 15 10/26/17 - 11/02/17 31 +/- 2

< 15 11/02/17 - 11/09/17 32 +/- 3

< 15 11/09/17 - 11 /16/17 34 +/- 3

< 18 11/16/17 - 11/22/17 37 +/- 3

< 16 11/22/17 - 11/30/17 47 +/- 3

< 19 11/30/17 - 12/07/17 44 +/- 3

< 17 12/07/17 - 12/14/17 42 +/- 3

< 21 12/14/17 - 12/21/17 46 +/- 3

< 17 12/21/17 - 12/28/17 41 +/- 3

< 18 MEAN 32 +/- 17 D-4

TABLE D-11.2 CONCENTRATIONS OF GAMMA EMITTERS IN AIR PARTICULATE SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF E-3 PCI/CU METER+/- 2 SIGMA COLLECTION SITE PERIOD Be-7 Mn-54 Co-58 Co-60 Cs-134 Cs-137 1A 12/30/15 - 03/31/16 83 +/- 9

< 0.9

< 0.9

< 0.9

< 0.7

< 0.8 03/31/16 - 06/30/16

< 92

< 1.3

< 1.3

< 1.4

< 1.0

< 1.2 06/30/16 - 09/29/16 86 +/- 11

< 1.1

< 1.2

< 1.2

< 1.0

< 1.1 09/29/16 - 12/29/16 77 +/- 11

< 1.3

< 1.4

< 1.1

< 1.1

< 1.2 MEAN+/- 2 STD DEV 85 +/- 12 TABLE D-111.1 CONCENTRATIONS OF 1-131 AND GAMMA EMITTERS IN MILK SAMPLES COLLECTED IN THE VICINITY OF PEACH BOTTOM ATOMIC POWER STATION, 2017 RES UL TS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE PERIOD 1-131 K-40 Cs-134 Cs-137 Ba-140 La-140 J

02/13/17

< 0.8 1420 +/- 115

< 5 I

< 6

< 11

< 11 05/01/17

< 1.0 1424 +/- 117

< 5

< 6

< 10

< 10 08/07/17

< 0.5 1490 +/- 97

< 4

< 5

< 7

< 7 11/13/17

< 0.9 1433 +/- 115

< 5

<6

< 14

< 14 MEAN+/- 2 STD DEV 1442 +/- 65 s

02/13/17

< 0.7 1591 +/- 101

< 5

< 5

< 10

< 10 05/01/17

< 0.8 1377 +/- 87

<4

< 4

< 6

< 6 08/07/17

< 0.6 1471 +/- 119

< 5

< 6

< 8

< 8 11/13/17

< 0.6 1454 +/- 96

< 4

< 5

< 13

< 13 MEAN+/- 2 STD DEV 1473 +/- 177 V

02/11/17

< 0.7 1452 +/- 90

<4

<4

< 10

< 10 04/29/17

< 1.0 1302 +/- 93

< 4

< 5

< 9

< 9 08/04/17

< 0.6 1377 +/- 86

< 4

<4

< 9

< 9 11 /13/17

< 0.8 1501 +/- 92

<4

<4

< 9

< 9 MEAN+/- 2 STD DEV 1408 +/- 174 THE MEAN AND TWO STANDARD DEV/A TION ARE CALCULATED USING THE POSITIVE VALUES D-5

0 I

O>

FIGURE D-1 COMPARISON OF MONTHLY TOTAL GROSS BETA CONCENTRATIONS IN DRINKING WATER SAMPLES FROM STATION 4L ANALYZED BY THE PRIMARY AND QC LABORATORIES, 2017 10.0

-e-PRIMARY LAB I Reporti ng Level 15 pCi/L I QC LAB LLD 8.0 I.,

~

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(.)

Q.

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JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC MONTH

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FIGURE D-2 COMPARISON OF WEEKLY GROSS BETA CONCENTRATIONS FROM CO-LOCATED AIR PARTICULATE LOCATIONS (lZ/lA) ANALYZED BY THE PRIMARY AND QC LABORATORIES, 2017 60 I

I

-e-QC LAB Investigation Level 160 pCi/m 3 I

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1 Intentionally left blank

APPENDIX E INTER-LABORATORY COMPARISON PROGRAM ACCEPTANCE CRITERIA AND RESULTS

Intentionally left blank

A. Pre-set Acceptance Criteria

1.

Analytics Evaluation Criteria Analytics' evaluation report provides a ratio of laboratory results and Analytics' known value. Since flag values are not assigned by Analytics, TBE-ES evaluates the reported ratios based on internal QC requirements and the DOE MAPEP criteria.

2.

ERA Evaluation Criteria The Environmental Resource Associates' evaluation report provides an acceptance range for control and warning limits with associated flag values. The Environmental Resource Associates' acceptance limits are established per the United States Environmental Protection Agency (USEPA), National Environmental Laboratory Accreditation Conference (NELAC), state-specific performance testing program requirements or ERA's standard operating procedure 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.

The MAPEP defines three levels of performance: Acceptable (flag = "A"),

Acceptable with Warning (flag = "W"), and Not Acceptable (flag = "N").

Performance is considered acceptable when a mean result for the specified analyte is +/- 20% of the reference value. Performance is acceptable with warning when a mean result falls in the range from

+/-20% to +/-30% of the reference value (i.e., 20% <bias< 30%). If the bias is greater than 30%, the results are deemed not acceptable.

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.

B. TBE PE Results and Discussion

1.

Two nuclides in the water sample from the ERA April 2017 were evaluated as Not Acceptable. (NCR 17-09)

a. The Zn-65 result of 39.3 pCi/L, exceeded the lower acceptance limit of 47.2. The known value was unusually low for this study. The sample was run in duplicate on two different detectors with results of 39.3 +/- 18.2 pCi/L and 59.3 +/- 8.23 pCi/L. The result from the 2nd detector would have been well within the acceptable range (47.2 - 65.9) at 110.2% of the known value of 53.8 pCi/L.
b. The Sr-89 result of 40.7 pCi/L exceeded the lower acceptance limit of 53.8. All associated QC and recoveries were reviewed and no apparent cause could be determined for the failure.
2.

The DOE MAPEP August 2017 air particulate U-238 result of 0.115 +/- 0.025 Sq/sample was higher than the known value of 0.087 +/- 0.002 with a ratio of 1.32, therefore the upper ratio of 1.30 (acceptable with warning) was exceeded. TBE's result with error easily overlaps with the acceptable range. MAPEP does not evaluate results with any associated error and the spike level for this sample was very low (2.35 pCi) compared to TBE's normal LCS of 6 pCi. TBE considers this result as passing. (NCR 17-15)

3.

The Analytics September 2017 soil Cr-51 result was evaluated as Not Acceptable (Ratio of TBE to known result at 0.65). The reported value was 0.230 +/- 0.144 pCi/g and the known value was 0.355 +/- 0.00592 pCi/g. The sample was counted overnight for 14 hours1.62037e-4 days <br />0.00389 hours <br />2.314815e-5 weeks <br />5.327e-6 months <br />, however the Cr-51 was spiked at a very low level and with a 27-day half-life, low-level quantification is difficult. The known value is significantly lower than TBE's typical MDC for this nuclide in a soil matrix and would typically not be reported to clients (unless specified). (NCR 17-16)

4.

The ERA November 2017 water Sr-90 sample was evaluated as Not Acceptable. TB E's result of 27.1 pCi/L exceeded the lower acceptance range (30.8 - 48.0 pCi/L). After reviewing the associated QC data for this sample, it was determined that although the spike recovery for Sr-90 was within our laboratory guidelines (70% -130%), both the spike result and our ERA result were biased low. The sample was consumed and we were unable to reanalyze before submitting the result. (NCR 17-19).

C. EIS Laboratory PE Results and Discussion

1.

The March 2017 water Gross Alpha result was evaluated as Not Acceptable (Ratio of EIS result to known at 0.78). The reported value was 217 pCi/L and the known value was 279 pCi/L. Low recovery of evaporated sample was the cause of this failure.

Improved laboratory technique was initiated and subsequent samples saw an improved recovery and passed NRC resolution test criteria without further issue.

D. GEL Labs PE Results and Discussion All H-3 performance evaluation analyses met the specified acceptance criteria.

TABLE E.1 Analytics Environmental Radioactivity Cross Check Program Teledlne Brown EnsineerinS Environmental Services, 2017 Identification TBE Known Ratio of TBE to Month/Year Number Matrix Nuclide Units Reported Value (a)

Analytics Result Evaluation (bl Value March 2017 E11811 Milk Sr-89 pCi/L 87 97.7 0.89 A

Sr-90 pCi/L 12.4 16.2 0.77 w

E11812 Milk Ce-141 pCi/L 135 145 0.93 A

Co-58 pCi/L 153 150 1.02 A

Co-60 pCi/L 182 183 1.00 A

Cr-51 pCi/L 258 290 0.89 A

Cs-134 pCi/L 104 120 0.87 A

Cs-137 pCi/L 142 140 1.02 A

Fe-59 pCi/L 135 129 1.05 A

1-131 pCi/L 92.6 97.9 0.95 A

Mn-54 pCi/L 173 164 1.05 A

Zn-65 pCi/L 208 199 1.04 A

E11813 Charcoal 1-131 pCi 92 93.9 0.98 A

E11814 AP Ce-141 pCi 99.9 101 0.99 A

Co-58 pCi 95.4 104 0.92 A

Co-60 pCi 140 127 1.10 A

Cr-51 pCi 211 201 1.05 A

Cs-134 pCi 82.1 83.2 0.99 A

Cs-137 pCi 92.8 97.0 0.96 A

Fe-59 pCi 107 89.3 1.20 A

Mn-54 pCi 106 114 0.93 A

Zn-65 pCi 137 138 0.99 A

E11816 Soil Ce-141 pCi/g 0.258 0.250 1.03 A

Co-58 pCi/g 0.241 0.258 0.93 A

Co-60 pCi/g 0.312 0.315 0.99 A

Cr-51 pCi/g 0.439 0.500 0.88 A

Cs-134 pCi/g 0.176 0.207 0.85 A

Cs-137 pCi/g 0.304 0.317 0.96 A

Fe-59 pCi/g 0.210 0.222 0.95 A

Mn-54 pCi/g 0.292 0.283 1.03 A

Zn-65 pCi/g 0.353 0.344 1.03 A

E11815 Water Fe-55 pCi/L 1600 1890 0.85 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 4)

TABLE E.1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services, 2017 Identification TBE Known Ratio ofTBE to Month/Year Number Matrix Nuclide Units Reported Value (a)

Analytics Result Value June 2017 E11844 Milk Sr-89 pCi/L 81.3 92.6 0.88 Sr-90 pCi/L 12.1 13.5 0.90 E11846 Milk Ce-141 pCi/L 142 151 0.94 Co-58 pCi/L 147 155 0.95 Co-60 pCi/L 185 191 0.97 Cr-51 pCi/L 321 315 1.02 Cs-134 pCi/L 168 188 0.89 Cs-137 pCi/L 148 150 0.99 Fe-59 pCi/L 116 115 1.01 1-131 pCi/L 102 93.6 1.09 Mn-54 pCi/L 168 172 0.98 Zn-65 pCi/L 195 204 0.96 E11847 Charcoal 1-131 pCi 87.9 84.8 1.04 E11845 AP Sr-89 pCi 70.8 79.1 0.90 Sr-90 pCi 9.10 11.5 0.79 E11848 AP Ce-141 pCi 112 116 0.96 Co-58 pCi 119 119 1.00 Co-60 pCi 171 146 1.17 Cr-51 pCi 270 241 1.12 Cs-134 pCi 152 144 1.05 Cs-137 pCi 114 115 0.99 Fe-59 pCi 94.1 88.3 1.07 Mn-54 pCi 139 132 1.06 Zn-65 pCi 141 156 0.90 E11849 Water Fe-55 pCi/L 1840 1890 0.97 July 2017 E11901 AP GR-A pCi 50.1 44.2 1.13 GR-B pCi 218 233 0.93 (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 Evaluation (bl A

A A

A A

A A

A A

A A

A A

A w

A A

A A

A A

A A

A A

A A

(Page 2 of 4)

TABLE E.1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services, 2017 Identification TBE Known Ratio of TBE to Month/Year Number Matrix Nuclide Units Reported Value (a)

Analytics Result Evaluation (b)

Value September 2017 E11914 Milk Sr-89 pCi/L 84.3 82.7 1.02 A

Sr-90 pCi/L 12.6 12.1 1.04 A

E11915 Milk Ce-141 pCi/L 93.9 87.0 1.08 A

Co-58 pCi/L 115 117 0.98 A

Co-60 pCi/L 265 262 1.01 A

Cr-51 pCi/L 273 217 1.26 w

Cs-134 pCi/L 186 201 0.93 A

Cs-137 pCi/L 175 172 1.02 A

Fe-59 pCi/L 137 125 1.09 A

1-131 pCi/L 78.0 71.0 1.10 A

Mn-54 pCi/L 128 123 1.04 A

Zn-65 pCi/L 206 184 1.12 A

E11916 Charcoal 1-131 pCi 71.9 64.4 1.12 A

E11917 AP Ce-141 pCi 80.1 86.3 0.93 A

Co-58 pCi 110 116 0.95 A

Co-60 pCi 277 260 1.07 A

Cr-51 pCi 275 215 1.28 w

Cs-134 pCi 192 199 0.96 A

Cs-137 pCi 165 170 0.97 A

Fe-59 pCi 122 124 0.98 A

Mn-54 pCi 120 122 0.99 A

Zn-65 pCi 175 183 0.96 A

E11918 Water Fe-55 pCi/L 1630 1630 1.00 A

E11919 Soil Ce-141 pCi/g 0.136 0.142 0.96 A

Co-58 pCi/g 0.179 0.191 0.94 A

Co-60 pCi/g 0.405 0.429 0.94 A

Cr-51 pCi/g 0.230 0.355 0.65 N (1)

Cs-134 pCi/g 0.272 0.328 0.83 A

Cs-137 pCi/g 0.336 0.356 0.94 A

Fe-59 pCi/g 0.210 0.205 1.02 A

Mn-54 pCi/g 0.210 0.201 1.05 A

Zn-65 pCi/g 0.301 0.301 1.00 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 17-16 (Page 3 of 4)

TABLE E.1 Analytics Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services, 2017 Identification TBE Known Ratio of TBE to Month/Year Number Matrix Nuclide Units Reported Value (a)

Analytics Result Value December 2017 E12054 Milk Sr-89 pCi/L 92.1 92.3 1.00 Sr-90 pCi/L 18.3 16.9 1.09 E12055 Milk Ce-141 pCi/L 97.8 98.3 0.99 Co-58 pCi/L 92.3 89.9 1.03 Co-60 pCi/L 176 173 1.02 Cr-51 pCi/L 226 242 0.93 Cs-134 pCi/L 118 125 0.95 Cs-137 pCi/L 148 141 1.05 Fe-59 pCi/L 123 113 1.08 1-131 pCi/L 66.0 57.8 1.14 Mn-54 pCi/L 173 161 1.08 Zn-65 pCi/L 233 211 1.10 E12056 Charcoal 1-131 pCi 48.1 47.5 1.01 E12057A AP Ce-141 pCi 108 111 0.97 Co-58 pCi 89.5 102 0.88 Co-60 pCi 223 196 1.14 Cr-51 pCi 311 274 1.13 Cs-134 pCi 141 142 1.00 Cs-137 pCi 162 160 1.01 Fe-59 pCi 121 129 0.94 Mn-54 pCi 177 182 0.97 Zn-65 pCi 203 239 0.85 E12058 Water Fe-55 pCi/L 1970 1740 1.13 E12059 AP Sr-89 pCi 71.2 87.4 0.81 Sr-90 pCi 12.9 16.0 0.81 (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 Evaluation (b)

A A

A A

A A

A A

A A

A A

A A

A A

A A

A A

A A

A A

A (Page 4 of 4)

TABLE E.2 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

Teledyne Brown Engineering Environmental Services, 2017 Identification TSE Known Acceptance Month/Year Matrix Nuclide Units Reported Evaluation {bl Number Value Value (a)

Range February 2017 17-MaS36 Soil Ni-63 Sq/kg

-5.512 (1)

A Sr-90 Sq/kg 571 624 437-811 A

17-MaW36 Water Am-241 Sq/L 0.693 0.846 0.592 -1.100 A

Ni-63 Sq/L 13.4 12.2 8.5 - 15.9 A

Pu-238 Sq/L 0.7217 0.703 0.492 - 0.914 A

Pu-239/240 Sq/L 0.9277 0.934 0.654-1.214 A

17-RdF36 AP U-234/233 Sq/sample 0.0911 0.104 0.073 - 0.135 A

U-238 Sq/sample 0.0967 0.107 0.075 - 0.139 A

17-RdV36 Vegetation Cs-134 Sq/sample 6.44 6.95 4.87 - 9.04 A

Cs-137 Sq/sample 4.61 4.60 3.22 - 5.98 A

Co-57 Sq/sample

-0.0229 (1)

A Co-60 Sq/sample 8.52 8.75 6.13 -11.38 A

Mn-54 Sq/sample 3.30 3.28 2.30 - 4.26 A

Sr-90 Sq/sample 1.30 1.75 1.23 - 2.28 w

Zn-65 Sq/sample 5.45 5.39 3.77 - 7.01 A

August 2017 17-MaS37 Soil Ni-63 Sq/kg 1130 1220 854 - 1586 A

Sr-90 Sq/kg 296 289 202 - 376 A

17-MaW37 Water Am-241 Sq/L 0.838 0.892 0.624-1.160 A

Ni-63 Sq/L

-0.096 (1)

A Pu-238 Sq/L 0.572 0.603 0.422 - 0.784 A

Pu-239/240 Sq/L 0.863 0.781 0.547 - 1.015 A

17-RdF37 AP U-234/233 Sq/sample 0.103 0.084 0.059 - 0.109 w

U-238 Sq/sample 0.115 0.087 0.061-0.113 N (2) 17-RdV37 Vegetation Cs-134 Sq/sample 2.34 2.32 1.62 - 3.02 A

Cs-137 Sq/sample 0.05 (1)

A Co-57 Sq/sample 3.32 2.8 2.0 - 3.6 A

Co-60 Sq/sample 2.09 2.07 1.45 - 2.69 A

Mn-54 Sq/sample 2.90 2.62 1.83 - 3.41 A

Sr-90 Sq/sample 1.17 1.23 0.86 - 1.60 A

Zn-65 Sq/sample 6.07 5.37 3.76 - 6.98 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) See NCR 17-15 (Page 1 of 1)

TABLE E.3 ERA Environmental Radioactivity Cross Check Program Teledyne Brown Engineering Environmental Services, 2017 TBE ldentrification Known Acceptance Month/Year Number Matrix Nuclide Units Reported Value (*)

Limits Evaluation (bl Value March 2017 MRAD-26 AP GR-A pCi/sample 76.3 85.5 28.6 - 133 April 2017 RAD-109 Water Ba-133 pCi/L 49.2 49.7 40.8-55.1 Cs-134 pCi/L 83.2 90.1 74.0 - 99.1 Cs-137 pCi/L 202 206 185 - 228 Co-60 pCi/L 51.2 54.7 49.2 - 62.7 Zn-65 pCi/L 39.3 53.8 47.2 - 65.9 GR-A pCi/L 53.6 75.0 39.5 - 92.3 GR-B pCi/L 42.7 38.5 25.5 - 46.0 U-Nat pCi/L 50.1 55.6 45.2 - 61.7 H-3 pCi/L 7080 6850 5920- 7540 Sr-89 pCi/L 40.7 66.2 53.8 - 74.3 Sr-90 pCi/L 26.9 26.7 19.3-31.1 1-131 pCi/L 26.7 29.9 24.9 - 34.9 September 2017 MRAD-27 AP GR-A pCi/sample 40.9 50.1 16.8 - 77.8 AP GR-B pCi/sample 58.0 61.8 39.1 - 90.1 October 2017 RAD-111 Water Ba-133 pCi/L 71.3 73.7 61.7-81.1 Cs-134 pCi/L 43.0 53.0 42.8 - 58.3 Cs-137 pCi/L 48.2 52.9 47.6-61.1 Co-60 pCi/L 69.0 69.5 62.6 - 78.9 Zn-65 pCi/L 335 348 313 - 406 GR-A pCi/L 32.5 35.6 18.3 - 45.8 GR-B pCi/L 24.3 25.6 16.0 - 33.6 U-Nat pCi/L 36.6 37.0 30.0 - 40.9 H-3 pCi/L 6270 6250 5390 - 6880 1-131 pCi/L 26.4 24.2 20.1 - 28.7 November 2017 1113170 Water Sr-89 pCi/L 57.1 50.0 39.4 - 57.5 Sr-90 pCi/L 27.1 41.8 30.8 - 48.0 (a) The ERA 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) ERA evaluation:

A = Acceptable - Reported value falls within the Acceptance Limits N = Not Acceptable - Reported value falls outside of the Acceptance Lirrits (1) See NCR 17-09 (2) See NCR 17-19 A

A A

A A

N (1J A

A A

A N (1J A

A A

A A

A A

A A

A A

A A

A A

N (2J (Page 1 of 1)

TABLE E.4 Analytics Environmental Radioactivity Cross Check Program Exelon Industrial Services1 2017 Identification EIS Known Ratio of Analytics Month/Year Number Matrix Nuclide Units Reported Value (a) to EIS Result Value March 2017 E11785 Water GR-A pCi/L 217 279 1.29 E11786 Charcoal 1-131 pCi 87 96.4 1.11 E11787 Water H-3 pCiL 9860 9980 1.01 E11784 Milk 1-131 pCi 103 97.9 0.95 Ce-141 pCi 165.0 145 0.88 Cr-51 pCi 299 290 0.97 Cs-134 pCi 118.0 120.0 1.02 Cs-137 pCi 165 140 0.85 Co-58 pCi 148.0 150 1.01 Mn-54 pCi 176 164 0.93 Fe-59 pCi 136 129.0 0.95 Zn-65 pCi 215 199 0.93 Co-60 pCi 192 183 0.95 June 2017 E11884 Water GR-B pCi/L 242 249 1.03 E11885 Water 1-131 pCi/L 99 97 0.98 Ce-141 pCi/L 220 199 0.90 Cr-51 pCi/L 503 413 0.82 Cs-134 pCi/L 242 247 1.02 Cs-137 pCi/L 218 197 0.90 Co-58 pCi/L 222 204 0.92 Mn-54 pCi/L 255 225 0.88 Fe-59 pCi/L 170 151.0 0.89 Zn-65 pCi/L 307 267 0.87 Co-60 pCi/L 278 250 0.90 E11886 AP Ce-141 pCi/Filter 122 118 0.97 Cr-51 pCi/Filter 238 246 1.03 Cs-134 pCi/Filter 129 147 1.14 Cs-137 pCi/Filter 121 117 0.97 Co-58 pCi/Filter 116 121 1.04 Mn-54 pCi/Filter 140 134 0.96 Fe-59 pCi/Filter 99 89.9 0.91 Zn-65 pCi/Filter 175 159 0.91 Co-60 pCi/Filter 144 149 1.03 (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 EIS internal QC limits in accordance with the NRG Resolution Test criteria Evaluation (b)

Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass (Page 1 of 2)

TABLE E.4 Analytics Environmental Radioactivity Cross Check Program Exelon Industrial Services, 2017 Identification EIS Known Ratio of Analytics Month/Year Number Matrix Nuclide Units Reported Value (a) to EIS Result Value September 2017 E11902 Water H-3 pCi/L 14900 14200 0.95 E11947 Water GR-8 pCi/L 64.2 67.2 1.05 December 2017 E11672 Milk 1-131 pCi/L 71.4 57.8 0.81 Ce-141 pCi/L 113 98.3 0.87 Cr-51 pCi/L 254 242 0.95 Cs-134 pCi/L 129 125 0.97 Cs-137 pCi/L 163 141 0.87 Co-58 pCi/L 89.5 89.9 1.00 Mn-54 pCi/L 184 161 0.88 Fe-59 pCi/L 127 113 0.89 Zn-65 pCi/L 218 211 0.97 Co-60 pCi/L 185 173 0.94 E12028A AP Ce-141 pCi/Filter 61.9 59.4 0.96 Cr-51 pCi/Filter 123 146 1.19 Cs-134 pCi/Filter 62.8 75.4 1.20 Cs-137 pCi/Filter 82.8 85.3 1.03 Co-58 pCi/Filter 50.1 54.3 1.08 Mn-54 pCi/Filter 97 97.1 1.00 Fe-59 pCi/Filter 69.6 68.5 0.98 Zn-65 pCi/Filter 124 127 1.02 Co-60 pCi/Filter 95.7 104 1.09 E12029 Water GR-8 pCi/L 284 265 0.93 E12030A AP Charcoal pCi 44.0 47.5 1.08 (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 EIS internal QC limits in accordance with the NRG Resolution Test criteria Evaluation (bl Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass (Page 2 of 2)

TABLE E.5 ERA Environmental Radioactivity Cross Check Program Exelon Industrial Services, 2017 EIS Known Acceptance Acceptance Month/Year ID Number Matrix Nuclide Units Reported Value (*)

Limits Ratio of ERA Value to EIS Result April 2017 RAD-109 Water Ba-133 pCi/L 50.2 49.7 40.8 - 55.1 0.99 Cs-134 pCi/L 88.3 90.1 74.0- 99.1 1.02 Cs-137 pCi/L 226 206 185 - 228 0.91 Co-60 pCi/L 59.5 54.7 49.2 - 62.7 0.92 Zn-65 pCi/L 66.2 53.8 47.2 - 65.9 0.81 1-131 pCi/L 29.1 29.9 24.9-34.9 1.03 GR-8 pCi/L 32.4 38.5 25.5 - 46.0 1.19 H-3 pCi/L 7347 6850 5920- 7540 0.93 July 2017 RAD-110 H-3 pCi/L 5305 5060 4340 - 5570 0.95 September 2017 MRAD-27 AP Cs-134 pCi/Filter 1334 1440 916 - 1790 1.08 Cs-137 pCi/Filter 1050 954 717-1250 0.91 Co-60 pCi/Filter 309 271 210-339 0.88 Zn-65 pCi/Filter 153 123 88.1 - 170 0.80 October 2017 RAD-111 Water Ba-133 pCi/L 76.2 73.7 61.7-81.1 0.97 Cs-134 pCi/L 54.3 53.0 42.8 - 58.3 0.98 Cs-137 pCi/L 58.5 52.9 47.6-61.1 0.90 Co-60 pCi/L 74.9 69.5 62.6 - 78.9 0.93 Zn-65 pCi/L 411.5 348 313 - 406 0.85 1-131 pCi/L 25.9 24.2 20.1 - 28.7 0.93 (a) The ERA 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 EIS internal QC limits in accordance with the NRG Resolution Test criteria Evaluation (b)

Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass (Page 1 of 1)

TABLE E.6 DOE's Mixed Analyte Performance Evaluation Program (MAPEP)

GEL Laboratories - H-3 Only, 2017 Identification GEL Known Acceptance Quarter/Year Matrix Nuclide Units Reported Evaluation (bl Number Value Value (aJ Range 2nd/2017 17-MaW36 Water H-3 Bq/kg 245 249.0 174 -324 A

4th/2017 17-MaW37 Water H-3 Bq/kg 250 258 181 - 335 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 (Page 1 of 2)

TABLE E.7 ERA Environmental Radioactivity Cross Check Program GEL Laboratories - H-3 Only, 2017 TBE ldentrification Known Acceptance Quarter/Year Number Matrix Nuclide Units Reported Value (a)

Limits Evaluation (bl Value 1sU2017 RAD-108 Water H-3 pCi/L 11300 12500 10900 - 13800 H-3 pCi/L 11600 12500 10900 - 13800 2nd/2017 MRAD-26 Water H-3 pCi/L 18900 19400 13000 - 27700 3rd/2017 RAD-111 Water H-3 pCi/L 5120 5060 4340 - 5570 H-3 pCi/L 46200 5060 4340 - 5570 4th/2017 MRAD-27 Water H-3 pCi/L 21100 22500 151 00 - 321 00 (a) The ERA known value is equalto 100% of the parameter presentin 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 Umits N = Not Acceptable - Reported value falls outside of the Acceptance Limits A

A A

A A

A (Page 2 of 2)

APPENDIX F ERRATA DATA

There is no errata data for 2017.

APPENDIX G ANNUAL RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM REPORT (ARGPPR)

Intentionally Left Blank

Docket No:

50-277 50-278 PEACH BOTTOM ATOMIC POWER STATION UNITS 2 and 3 Annual Radiological Groundwater Protection Program Report (ARGPPR)

January 1 through December 31, 2017 Prepared By Teledyne Brown Engineering Environmental Services Exelon Generation Peach Bottom Atomic Power Station Delta, PA 17314 May 2018

Table of Contents I. Summary and Conclusions................................................................................................ 1 II. Introduction........................................................................................................................ 2 A. Objectives of the RGPP........................................................................................ 2 B. Implementation of the Objectives.......................................................................... 3 C. Program Description.............................................................................................. 3 D. Characteristics of Tritium (H-3)............................................................................. 4 Ill. Program Description......................................................................................................... 5 A. Sample Analysis.................................................................................................... 5 B. Data Interpretation................................................................................................. 5 C. Background Analysis............................................................................................. 6 IV. Results and Discussion................................................................................................... 8 A. Groundwater Results............................................................................................. 8 B. Surface Water Results......................................................................................... 10 C. Precipitation Water Results................................................................................. 11 D. Drinking Water Well Survey................................................................................ 11 E. Summary of Results - Inter-Laboratory Comparison Program.......................... 11 F. Leaks, Spills, and Releases................................................................................. 11 G. Trends................................................................................................................. 11 H. Investigations....................................................................................................... 12 I. Actions Taken...................................................................................................... 13 J. Deviations............................................................................................................. 14 V. References...................................................................................................................... 14

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-11.1 Table B-11.2 Table B-111.1 Appendices Sampling Locations, Distance and Direction Radiological Groundwater Protection Program - Sampling Locations, Distance and Direction, Peach Bottom Atomic Power Station, 2017 Well Water Locations, Peach Bottom Atomic Power Station, 2017 RGPP Monitoring Locations, Peach Bottom Atomic Power Station, 2017 Data Tables Concentrations of Tritium, Strontium, Gross Alpha and Gross Beta in Groundwater and Seep Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2017 Concentrations of Gamma Emitters in Groundwater and Seep Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2017 Concentrations of Hard-to-Detects in Groundwater Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2017 Concentrations of Tritium in Surface Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2017 Concentrations of Gamma Emitters in Surface Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2017 Concentrations of Tritium in Precipitation Water Samples Collected as Part of the Radiological Groundwater Protection Program, Peach Bottom Atomic Power Station, 2017 ii

I.

Summary and Conclusions This report on the Radiological Groundwater Protection Program (RGPP) conducted for the Peach Bottom Atomic Power Station (PBAPS) by Exelon Nuclear covers the period 01 January 2017 through 31 December 2017. This evaluation involved numerous station personnel and contractor support personnel. At PBAPS, there are 31 permanent groundwater monitoring wells.

Installation of the wells began in 2006. Of these monitoring locations, none were assigned to the station's Radiological Environmental Monitoring Program (REMP). This report covers groundwater, surface water, seep water, and precipitation water samples collected from the environment on station property in 2017. During that time period, 1,208 analyses were performed on 265 samples from 44 locations. These 44 locations include 27 groundwater monitoring wells, 3 surface water sample points, 3 groundwater seeps, 2 yard drain sumps, 2 recapture points, 1 moat sump and 6 precipitation water sampling points. Phase 1 of the monitoring was part of a comprehensive study initiated by Exelon to determine whether groundwater or surface water in the vicinity of PBAPS had been adversely impacted by any releases of radionuclides. Phase 1 was conducted by Conestoga Rovers and Associates (CRA) and the conclusions were made available to state and federal regulators as well as the public. Phase 2 of the RGPP was conducted by Exelon corporate and station personnel to initiate follow up of Phase 1 and begin long-term monitoring at groundwater and surface water locations selected during Phase 1. All analytical results from Phase 2 monitoring are reported herein.

Samples supporting the RGPP were analyzed for Tritium (H-3), Strontium-89 (Sr-89), Strontium-90 (Sr-90), gross alpha, gross beta, gamma-emitting radionuclides associated with licensed plant operations and isotopes known as

'hard to detects'.

In assessing all the data gathered for this report, it was concluded that the operation of PBAPS had no adverse radiological impact on the environment and there are currently no known active releases into the groundwater at PBAPS.

Tritium was not detected at any location in concentrations greater than the United States Environmental Protection Agency (USEPA) drinking water standard (and the Nuclear Regulatory Commission [NRC] Reporting Limit) of 20,000 pCi/L.

Tritium was not detected at concentrations greater than the minimum detectable concentration (MDC) in any surface water, seep water or precipitation water sample locations. Based on the sample data, tritium is not migrating off the station property at detectable concentrations.

11.

Introduction PBAPS is located along the Susquehanna River between Holtwood and Conowingo Dams in Peach Bottom Township, York County, Pennsylvania. The initial loading of fuel into Unit 1, a 40 MWe (net) high temperature gas-cooled reactor, began on 5 February 1966, and initial criticality was achieved on 3 March 1966. Shutdown of Peach Bottom Unit 1 for decommissioning was on 31 October 1974. For the purposes of the monitoring program, the beginning of the operational period for Unit 1 was considered to be 5 February 1966. A summary of the Unit 1 preoperational monitoring program was presented in a previous report (1l. PBAPS Units 2 and 3 are boiling water reactors, each with a power output of approximately 1366 MWe.

The first fuel was loaded into Peach Bottom Unit 2 on 9 August 1973. Criticality was achieved on 16 September 1973 and full power was reached on 16 June 197 4.

The first fuel was loaded into Peach Bottom Unit 3 on 5 July 197 4. Criticality was achieved on 7 August 197 4 and full power was first reached on 21 December 197 4.

Preoperational summary reports (2X3) for Units 2 and 3 have been previously issued and summarize the results of all analyses performed on samples collected from 5 February 1966 through 8 August 1973.

This report covers those analyses performed by Teledyne Brown Engineering (TSE) on samples collected in 2017.

A.

Objective of the RGPP The objectives of the RGPP are as follows:

1. Ensure that the site characterization of geology and hydrology provides an understanding of predominant groundwater gradients based upon current site conditions.
2. Identify site risk based on plant design and work practices.
3. Establish an on-site groundwater monitoring program to ensure timely detection of inadvertent radiological releases to ground water.
4. Establish a remediation protocol to prevent migration of licensed material off-site and to minimize decommissioning impacts.
5. Ensure that records of leaks, spills, remediation efforts are retained and retrievable to meet the requirements of 10 CFR 50.75(g).
6. Conduct initial and periodic briefings of their site specific Groundwater Protection Initiative (GPI) program with the designated State/Local officials.
7. Make informal communication as soon as practicable to appropriate 2

State/Local officials, with follow-up notifications to the NRC, as appropriate, regarding significant on-site leaks/spills into groundwater and on-site or off-site water sample results exceeding the criteria in the REMP as described in the Offsite Dose Calculation Manual (ODCM).

8. Submit a written 30-day report to the NRC for any water sample result for on-site groundwater that is or may be used as a source of drinking water that exceeds any of the criteria in the licensee's existing REMP/ODCM for 30-day reporting of off-site water sample results.
9. Document all on-site groundwater sample results and a description of any significant on-site leaks/spills into groundwater for each calendar year in the Annual Radiological Environmental Operating Report (AREOR) for REMP or the Annual Radioactive Effluent Release Report (ARERR).
10. Perform a self-assessment of the GPI program.
11. Conduct a review of the GPI program, including at a minimum the licensee's self-assessments, under the auspices of the Nuclear Energy Institute (NEI).

B.

Implementation of the Objectives The objectives identified have been implemented at PBAPS via Corporate and Site specific procedures. These procedures include:

1.

EN-AA-407, Response to Inadvertent Releases of Licensed Materials to Groundwater, Surface Water, Soil or Engineered Structures

2.

EN-AA-408, Radiological Groundwater Protection Program

3.

EN-AA-408-4000, Radiological Groundwater Protection Program Implementation

4.

EN-PB-408-4160, RGPP Reference Material for Peach Bottom Atomic Power Station C.

Program Description

1.

Sample Collection Sample locations can be found in Table A-1 and Figures A-1 and A-2, Appendix A.

3

Groundwater, Surface Water and Precipitation Water Samples of water are collected, managed, transported and analyzed in accordance with approved procedures. Sample locations, sample collection frequencies and analytical frequencies are controlled in accordance with approved station procedures.

Contractor and/or station personnel are trained in the collection, preservation management and shipment of samples, as well as in documentation of sampling events. Analytical laboratories are subject to internal quality assurance programs, industry cross-check programs, as well as nuclear industry audits. Station personnel review and evaluate all analytical data deliverables as data are received.

Analytical data results are reviewed by both station personnel and an independent hydro geologist for adverse trends or changes to hydrogeologic conditions.

D.

Characteristics of Tritium Tritium is a radioactive isotope of hydrogen. The most common form of tritium is tritium oxide, which is also called "tritiated water." The chemical properties of tritium are essentially those of ordinary hydrogen.

Tritiated water behaves the same as ordinary water in both the environment and the body. Tritium can be taken into the body by drinking water, breathing air, eating food or absorption through skin. Once tritium enters the body it disperses quickly and is uniformly distributed throughout the body. Tritium is excreted primarily through urine with a clearance rate characterized by an effective biological half-life of about 14 days. Within one month or so after ingestion essentially all tritium is cleared.

Organically bound tritium (tritium that is incorporated in organic compounds) can remain in the body for a longer period.

Tritium is produced naturally in the upper atmosphere when cosmic rays strike air molecules. Tritium is also produced during nuclear weapons explosions, as a by-product in reactors producing electricity and in special production reactors, where the isotopes Lithium-7 (Li-7) and/or Boron-10 (8-10) are activated to produce tritium. Like normal water, tritiated water is colorless and odorless. Tritiated water behaves chemically and physically like non-tritiated water in the subsurface and therefore tritiated water will travel at the same velocity as the average groundwater velocity.

Tritium has a half-life of approximately 12.3 years. It decays spontaneously to Helium-3 (He-3). This radioactive decay releases a beta particle (low-energy electron). The radioactive decay of tritium is the 4

source of the health risk from exposure to tritium. Tritium emits a low energy beta particle and leaves the body relatively quickly. Since tritium is almost always found as water, it goes directly into soft tissues and organs.

The associated dose to these tissues is generally uniform and is dependent on the water content of the specific tissue.

Ill.

Program Description A.

Sample Analysis This section describes the general analytical methodologies used by TBE and GEL Laboratories (GEL) to analyze the environmental samples for radioactivity for the PBAPS RGPP in 2017.

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.

3.

Concentrations of tritium in groundwater, surface water and precipitation water.

4.

Concentrations of 'hard-to-detect' isotopes, Americium-241 (Am-241 ), Cerium-242/243/244 (Cm-242, Cm-243, Cm-244 ),

Plutonium-238/239/240 (Pu-238, Pu-239, Pu-240), Uranium-233/234/235/238 (U-233, U-234, U-235, U-238), lron-55 (Fe-55),

and Nickel-63 (Ni-63) in groundwater. These analyses are required based on tritium results.

B.

Data Interpretation The radiological data collected prior to PBAPS becoming operational were used as a baseline for operational data comparison. For the purpose of this report, PBAPS was considered operational at initial criticality. Several factors were important in the interpretation of the data:

1.

Lower Limit of Detection The lower limit of detection (LLD) is a minimum sensitivity value that must be achieved routinely by the analytical parameter.

5

2.

Laboratory Measurements Uncertainty The estimated uncertainty in measurement of tritium in environmental samples is frequently on the order of 50% of the measurement value.

Statistically, the exact value of a measurement is expressed as a range with a stated level of confidence. The convention is to report results with a 95% level of confidence. The uncertainty comes from factors such as calibration standards, sample volume or weight measurements, and sampling uncertainty. Exelon 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.

Exelon reports the TPU by following the result with plus or minus+/-

the estimated sample standard deviation.

Analytical uncertainties are reported at the 95% confidence level in this report for reporting consistency with the AREOR.

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

For groundwater and surface water 12 nuclides, Manganese-54 (Mn-54), Colbalt-58/60 (Co-58, Co-60),

lron-59 (Fe-59), Zinc-65 (Zn-65), Niobium-95 (Nb-95),

Zirconium-95 (Zr-95), lodine-131 (1-131), Cesium-134/137 (Cs-134, Cs-137), Barium-140 (Ba-140) and Lanthanum-140 (La-140) are measured.

C.

Background Analysis A pre-operational REMP was conducted to establish background radioactivity levels prior to operation of the Station. The environmental media sampled and analyzed were atmospheric radiation, fall-out, domestic water, surface water, marine life, precipitation, well water, and foodstuffs. The results of the monitoring program were detailed in the PBAPS, Environs Radiation Monitoring Program, Preoperational Summary Reports referenced in Section V.

6

1.

Background Concentrations of Tritium The purpose of the following discussion is to summarize background measurements of tritium in various media performed by others. Additional detail may be found by consulting references (CRA 2006)(1).

a.

Tritium Production Tritium is created in the environment from naturally occurring processes both cosmic and subterranean, as well as from anthropogenic (i.e., man-made) sources. In the upper atmosphere, "Cosmogenic" tritium is produced from the bombardment of stable nuclides and combines with oxygen to form tritiated water, which will then enter the hydrologic cycle. Below ground, "lithogenic" tritium is produced by the bombardment of natural Li present in crystalline rocks by neutrons produced by the radioactive decay of naturally abundant U and Th. Lithogenic production of tritium is usually negligible compared to other sources due to the limited abundance of Li 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 2006.

RadNet provides tritium precipitation concentration data for samples collected at stations throughout the U.S. from 1960 up to and including 2006. Based on GNIP data for sample stations located in the U.S. Midwest, tritium concentrations 7

peaked around 1963. This peak, which approached 10,000 pCi/L for some stations, coincided with the atmospheric testing of thermonuclear weapons. Tritium concentrations in surface water showed a sharp decline until 1975. A gradual decline has followed since that time. Tritium concentrations have typically been below 100 pCi/L since around 1980, but tritium concentrations in wells may still be above the 200 pCi/L detection limit from the external causes described above. Water from previous years and decades is naturally captured in groundwater, so some well water sources today are affected by the surface water from the 1960s that was elevated in tritium.

c.

Surface Water Data Surface water level measurements were collected at the surface water monitoring locations. The purpose of the surface water measurements was to provide surface water elevation data to evaluate the groundwater/surface water interaction at the Station.

The USEPA RadNet surface water data typically has a reported 'Combined Standard Uncertainty' of 35 to 50 pCi/L.

According to US EPA, 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 Exelon-specified LLD of 200 pCi/L. Typically, the lowest positive measurement will be reported within a range of 40 -

240 pCi/L or 140 +/- 100 pCi/L. Clearly, these sample results cannot be distinguished as different from background at this concentration.

IV.

Results and Discussion A.

Groundwater Results Groundwater Samples were collected from on-site wells throughout the year in accordance with the station radiological groundwater protection program.

Analytical results and anomalies are discussed below:

8

Tritium Samples from 32 locations were analyzed for tritium activity (Tables B-1.1 and 8-11.1, Appendix B). Tritium values ranged from the detection limit to 17,600 pCi/L. Tritium was not detected in wells at or near the owner-controlled boundary. The location most representative of potential offsite user of drinking water is less than the MDC (Table B-1.1, Appendix B).

Low levels of tritium were detected at concentrations greater than the minimum detectable concentration (MDC) in 11 of 30 groundwater monitoring wells and the two yard drain locations. The concentrations ranged from 181 pCi/L to 17,600 pCi/L (Table 8-1.1, Appendix B).

No tritium was detected in any surface water samples (Table B-11.1, Appendix B). No tritium was detected in any precipitation water samples (Table B-111.1, Appendix B).

Strontium Sr-89 and Sr-90 were not detected in any of the samples (Table B-1.1,

Appendix B).

Gross Alpha and Gross Beta (dissolved and suspended)

Gross Alpha and Gross Beta analyses in the dissolved and suspended fractions were performed on groundwater samples during 2017.

Gross Alpha (dissolved) was detected in 6 of 20 groundwater locations analyzed. The concentrations ranged from 2.1 to 15.6 pCi/L.

Gross Alpha (suspended) was detected in 1 of 19 groundwater locations analyzed with a concentration of 3.5 pCi/L.

Gross Beta (dissolved) was detected in 20 of 20 groundwater locations analyzed. The concentrations ranged from 2.3 to 15.4 pCi/L.

Gross Beta (suspended) was not detected in any of the 19 groundwater locations analyzed.

The activity detected is consistent with historical levels. The activity detected is naturally occurring and the levels are considered to be background (Table 8-1.1, Appendix B).

9

Hard-To-Detect Hard-To-Detect analyses were performed on a select group of groundwater water locations to establish baseline levels. The analyses for groundwater included Fe-55, Ni-63, Am-241, Cm-242, Cm-243/244, Pu-238, Pu-239/240, U-234, U-235 and U-238. Only the isotopes listed below were identified.

U-234 was detected in 3 of 6 groundwater monitoring locations analyzed.

The concentrations ranged from 0.61 to 5.64 pCi/L..

U-235 was detected in 2 of 6 groundwater monitoring locations analyzed.

The concentrations ranged from 0.54 to 0.55 pCi/L.

U-238 was detected in 3 of 6 groundwater monitoring locations analyzed.

The concentrations ranged from 0.29 to 2.58 pCi/L.

No plant-produced radionuclides were detected. The activity detected is naturally occurring and the levels are considered to be background (Table B-1.3, Appendix B).

Gamma Emitters No power-production gamma emitters were detected in any of the samples (Table B-1.2, Appendix B).

B.

Surface Water Results Surface Water Samples were collected from surface water locations throughout the year in accordance with the station radiological groundwater protection program. Analytical results are discussed below.

Tritium Samples from three locations were analyzed for tritium activity. Tritium was not detected in any samples (Table B-11.1, Appendix B).

Gamma Emitters No power-production gamma emitters were detected in any of the samples. No other gamma emitting nuclides were detected (Table B-11.2, Appendix B).

10

C.

Precipitation Water Results Samples were collected at six locations (1A, 1B, 1S, 1SSE, 1Z, and 4M) in accordance with the station radiological groundwater protection program.

The following analysis was performed:

Tritium Samples from six locations were analyzed for tritium activity. Tritium activity was not detected in any samples {Table B-111.1, Appendix B).

D.

Drinking Water Well Survey A drinking water well survey was conducted during the summer 2006 by CRA (CRA 2006)(1l around PBAPS. The water well inventory was updated in 2012<4)_ The updated water well database search indicated a new water well off Station property within a one mile radius of the Station. The well is described as a "test" well and its use is listed as "unused". In summary, there were no significant changes in off Station groundwater use from 2006-2012.

E.

Summary of Results - Inter-Laboratory Comparison Program Inter-Laboratory Comparison Program results for TBE and Environmental Inc. (Midwest Labs) are presented in the AREOR.

F.

Leaks, Spills and Releases There were no inadvertent leaks, spills or releases of water containing licensed material to the environment in 2017.

G.

Trends A tritium plume has been identified northeast of the Unit 3 Turbine Building. The plume extends eastward toward well MW-PB-4. The plume is bounded on the north by wells MW-PB-12 and MW-PB-22 and bounded on the south by wells MW-PB-20 and MW-PB-21.

The tritium plume is a result of licensed material entering the groundwater through degraded floor seams and penetration seals in the Unit 3 Turbine Building. The activity currently detected in the Unit 3 Turbine Building monitoring wells, MW-PB-24, 25, 26 and 27, is the result of legacy licensed material under the turbine building being transported eastward by natural hydrogeologic groundwater flow.

11

to quarterly. Below are 3 tables. The first lists the highest tritium activity of the wells of primary interest and the date of the sampling. The second table lists the highest tritium activity of the wells during 2017. The third table lists the activity of the wells from the last sampling of 2017. The tritium activity is in pCi/L.

Well#

Tritium Activity Date MW-PB-24 33,500 3/15/2010 MW-PB-25 161,000 3/8/2010 MW-PB-26 196,000 3/8/2010 MW-PB-27 71,800 2/22/2010 Well#

Tritium Activity Date MW-PB-24 2,250 4/3/2017 MW-PB-25 17,600 2/27/2017 MW-PB-26 418 3/20/2017 MW-PB-27 942 4/3/2017 Well#

Tritium Activity Date MW-PB-24 510 12/21/2017 MW-PB-25 12,800 12/21/2017 MW-PB-26 237 12/21/2017 MW-PB-27 467 12/21/2017 Potential sources of tritium in the groundwater are investigated via procedural processes and documented in the corrective action program.

The most likely pathway for tritium to enter the groundwater has been determined to be leaks internal to the Unit 3 Turbine Building Moisture Separator 116', migrating through degraded floor seams or other unidentified openings in the floor.

I.

Actions Taken

1. The Unit 3 Condensate storage tank moat, sump and valve pit were cleaned and recoated to eliminate a potential pathway for licensed material to enter the groundwater. These activities were completed under work order 04602739 on 3/15/17 and work request 01339203 on 4/11/17.
2. During P3R21, the Unit 3 Recombiner Jet Compressor room floor drains were found plugged. One plug was removed and the second plug was modified to allow water to drain to the radwaste system in the event of a licensed material leak. This was completed under work request 01369404 on 11/6/17.

13

3. Installation of Monitoring Wells No groundwater monitoring wells were installed in 2017.
4. Actions to Recover/Reverse Plumes There were no actions to recover the plume.

J.

Deviations The data tables show that duplicate samples were obtained at several wells during 2017. These duplicate samples were obtained and analyzed for quality control purposes.

Due to regional drought conditions, seep SP-PB-3, located west of the Low Level RadWaste Storage Facility was dry during the 4th quarter of 2017. No sample was obtained or analyzed.

V.

References 1. Conestoga Rovers and Associates, Fleetwide Assessment, Peach Bottom Atomic Power Station, Delta, PA, Fleetwide Assessment, Rev. 1, September 1, 2006.

2.

Peach Bottom Atomic Power Station, Environs Radiation Monitoring Program, Preoperational Summary Report Units 2 and 3, June 1977.

3. Peach Bottom Atomic Power Station, Environs Radiation Monitoring Program, Preoperational Summary Report Units 2 and 3, September 1970-August 1973, January 197 4.
4. Conestoga Rovers and Associates, Hydrogeologic Investigation Report, Peach Bottom Atomic Power Station, November 2012.
5.

AMO Environmental Decisions, 2017 RGPP Summary Monitoring Reports, April 2017, August 2017, October 2017 and February 2017.

14

3. Installation of Monitoring Wells No groundwater monitoring wells were installed in 2017.
4. Actions to Recover/Reverse Plumes There were no actions to recover the plume.

J.

Deviations The data tables show that duplicate samples were obtained at several wells during 2017. These duplicate samples were obtained and analyzed for quality control purposes.

Due to regional drought conditions, seep SP-PB-3, located west of the Low Level RadWaste Storage Facility was dry during the 4th quarter of 2017. No sample was obtained or analyzed.

V.

References

1. Conestoga Rovers and Associates, Fleetwide Assessment, Peach Bottom Atomic Power Station, Delta, PA, Fleetwide Assessment, Rev. 1, September 1, 2006.
2.

Peach Bottom Atomic Power Station, Environs Radiation Monitoring Program, Preoperational Summary Report Units 2 and 3, June 1977.

3. Peach Bottom Atomic Power Station, Environs Radiation Monitoring Program, Preoperational Summary Report Units 2 and 3, September 1970-August 1973, January 197 4.
4. Conestoga Rovers and Associates, Hydrogeologic Investigation Report, Peach Bottom Atomic Power Station, November 2012.
5.

AMO Environmental Decisions, 2017 RGPP Summary Monitoring Reports, April 2017, August 2017, October 2017 and February 2017.

14

APPENDIX A SAMPLING LOCATIONS, DISTANCE AND DIRECTION

I TABLE A-1:

Radiological Groundwater Protection Program - Sampling Locations, Distance and Direction, Peach Bottom Atomic Power Station, 2017 Site Site Type Sector Distance (ft.)

MW-PB-1 Groundwater Well SW 1,166.6 MW-PB-2 Groundwater Well WNW 309.0 MW-PB-3 Groundwater Well SSE 709.7 MW-PB-4 Groundwater Well ENE 350.2 MW-PB-5 Groundwater Well NNW 1,146.1 MW-PB-6 Groundwater Well NE 1,072.4 MW-PB-7 Groundwater Well SE 813.9 MW-PB-8 Groundwater Well SE 1,167.0 MW-PB-9 Groundwater Well SE 2,816.9 MW-PB-10 Groundwater Well SSE 1,125.1 MW-PB-11 Groundwater Well SE 438.4 MW-PB-12 Groundwater Well NNE 317.2 MW-PB-13 Groundwater Well NW 329.4 MW-PB-14 Groundwater Well s

1,231.2 MW-PB-15 Groundwater Well SE 1,087.9 MW-PB-16 Groundwater Well SE 1,101.6 MW-PB-17 Groundwater Well SE 1,005.4 MW-PB-18 Groundwater Well SE 1,010.0 MW-PB-19 Groundwater Well NW 226.8 MW-PB-20 Groundwater Well E

260.5 MW-PB-21 Groundwater Well E

363.3 MW-PB-22 Groundwater Well NE 315.4 MW-PB-24 Groundwater Well N

185.9 MW-PB-25 Groundwater Well N

159.7 MW-PB-26 Groundwater Well NNE 121.1 MW-PB-27 Groundwater Well NNE 139.1 MW-PB-28 Groundwater Well NW 249.6 MW-PB-29 Groundwater Well SE 325.0 MW-PB-30 Groundwater Well SE 379.2 MW-PB-31 Groundwater Well SE 450.1 SW-PB-1 Surface Water NNW 2,850.5 SW-PB-5 Surface Water SE 675.1 SW-PB-6 Surface Water SE 1,305.9 SP-PB-1 Groundwater Seep s

514.2 SP-PB-2 Groundwater Seep WNW 311.6 SP-PB-3 Groundwater Seep NNW 1,281.1 U/2 YARD DRAIN SUMP Groundwater SSE 498.7 U/3 YARD DRAIN SUMP Groundwater WSW 175.8 1A Precipitation Water ESE 1,271 18 Precipitation Water NW 2,587 1S Precipitation Water s

1,315 1SSE Precipitation Water SSE 1,312 1Z Precipitation Water SE 1,763 4M Precipitation Water SE 45,989 A-1

3 4

5 8

7 a

9 10 11' 12 13 15 18 17 1r ur 20 21 o

1000 2000ft 1-IERllER, RICHARD 11H107 COPPtll, ROGER 35180 FINCH, WAIINER 1-255089 184131 Hl3921 183920 3Q79 18402& 1--

154053 HALL. W HICKORY, DICKS HOSTETTER, J HOWARD, R KOSER, 0 EXELON

  • INFORMA llON C£NTER EXELON HIIZMATYARO ROBINSON. 0 ROBINSON, DALE S10LTEFUS, STEVEN EXELON
  • NORTH SUBSTA'TION EIIELON -SALT WASHDOWN ElCElON
  • PUB 8Ull.OINO ElQ;LON
  • INFORMA 1lON CENTER

!XfLON

  • SOVIM SU8STA 'TION 48311113 S10L1Zl'US Exel ' n_

~

53539-12(005)GN-WA008 NOVS/2012 7

0 LEGEND PROPERTY BOUNDARY ALL LOCATIONS APPROXIMATE (NOT FIELD VERIFIED)

IDENTIFIED ON 2006 SEARCH

  • NOT IDENTIFIED ON 2012 SEARCH ABANDONED 1-MILE RADIUS SOURCE USGS QUADRANGLE MAPS.

MOL lWOOO, PA.,vue WAKEFIELD PA. 111"9 OELTA, MD

  • 1-CONOVIIINGO DAM, MO
  • 191111 EXELON SUPPLY WELL (NON-POTABLE)

WATER WELL LOCATIONS PEACH BOTTOM ATOMIC POWER STATION EXELON GENERATION COMPANY, LLC Delta, Pennsylvania Figure A-1 Well Water Locations, Peach Bottom Atomic Power Station, 2017 A-2

  1. SW-PB-1 SP-f'B-3 #

MN-PB-25

  1. MN-PB-6 MN-PB-24 MN-PB-12 MN-PB-13 #
  1. # MN-PB-22 MN-PB-19 #
  1. MN-PB-4 MN-PB-27
      • , DC2#/ MN-PB-26 MN-PB-28 __

,vw_*-_*_=.....,

MN-~2~ MN-PB-21 0

MN-PB-1 l.Y3 Yard Drain SP-f'B-2 l.Y2 Yard Drail SP-f'B-1 MN-f1-29 # wtPB-11

  1. MN-PB-30 # SW-PB-5 MN-PB-31 MN-PB-3
  1. MN-PB-7 MN-PB-17 # MN-PB-18 MN-PB-15 t MN-PB-16 MN-PB-10 MN-PB-8
  1. SW-PB-6 MN-PB-14 ff,..,..

RGPP Surface waer Md Groundwater 5a11>le Locations Figure A-2 RGPP Monitoring Locations, Peach Bottom Atomic Power Station, 2017 A-3 MN-PB-$

APPENDIX B DATA TABLES

Intentionally left blank

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTIOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS O F PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis)

Gr-A (Sus)

Gr-B(Dis)

Gr-B(Sus)

MW-PB-1 05/10117 TBE

< 183 MW-PB-1 05/10/17 TBE

< 187 MW-PB-1 05/10/17 GEL

< 115

< 0.7

< 0.7

< 2.5 (1) 4.1 +/- 2.3 (1)

MW-PB-2 01/18/17

< 115 MW-PB-2 02/17/17

< 181 MW-PB-2 05/09/17

< 197

< 5.1

< 0.8 3.6 +/- 0.9

< 0.8 6.0 +/- 0.8

< 1.4 MW-PB-2 08/14/17

< 176 MW-PB-2 12/11/17

< 181 MW-PB-3 01/18/17 TBE

< 195 MW-PB-3 01 /18/17 TBE

< 180 MW-PB-3 01/18/17 GEL

< 144 MW-PB-3 05/09/17

< 193

< 6.8

< 0.9

< 1.1

< 0.8 5.8 +/- 1.0

< 1.4 MW-PB-3 08/14/17

< 177 MW-PB-3 12/11/17

< 180 MW-PB-3 12/11/17 TBE

< 188 MW-PB-3 12/11/17 TBE

< 183 MW-PB-3 12/11/17 GEL

< 137 MW-PB-4 01/19/17 201 +/- 128 MW-PB-4 05/09/17

< 195 MW-PB-4 08/14/17 TBE

< 179 MW-PB-4 08114/17 TBE

< 176 MW-PB-4 08/14117 GEL 138 +/- 81 MW-PB-4 12/12/17

< 179 MW-PB-5 05/10/17

< 194 MW-PB-6 05110/17

< 195 MW-PB-7 01/1 9117

< 193 MW-PB-7 05/10117 TBE

< 196

< 8.2

< 0.8

< 1.5

< 0.8 7.3 +/- 1.2

< 1.4 MW-PB-7 05/10/17 TBE

< 192

< 4.3

< 0.5

< 1.5

< 0.8 7.5 +/- 1.2

< 1.4 MW-PB-7 05/10/17 GEL

< 145

< 0.6

< 0.7

< 3.5 (1) 4.6 +/- 1.5 (1)

MW-PB-7 08/15117

< 176 MW-PB-7 12/12/17

< 183 MW-PB-8 01 /19/17

< 194 MW-PB-8 05/10/17

< 195

< 5.5

< 0.5

< 1.7

< 0.8 15.4 +/- 1.5

< 1.4 MW-PB-8 08/15/17

< 175 MW-PB-8 12/12117

< 183 MW-PB-10 01/19/17

< 193 MW-PB-10 05/10/17

< 196

< 5.4

< 0.8

< 4.2

< 2.0 8.7 +/- 3.7

< 3.7 MW-PB-10 08/16117

< 172 MW-PB-10 12/12/17

< 187 MW-PB-11 01/18117

< 193 MW-PB-12 01 /19117

< 193 MW-PB-12 05109/17

< 193 MW-PB-12 08/14/17

< 172 MW-PB-12 12/12117

< 183 MW-PB-13 01 /18117 214 +/- 129 MW-PB-13 02/17/17 230 +/- 122 MW-PB-13 05/09117

< 197

< 4.0

< 0.7 15.6 +/- 5.8

< 1.8 18.8 +/- 4.8

< 3.3 MW-PB-13 08/14117 205 :t 114 MW-PB-13 12/11/17 192 +/- 119 MW-PB-14 05/10117

< 196 MW-PB-15 01/19/17

< 192 MW-PB-15 05/10117

< 198

< 5.1

< 0.6

< 1.2

< 0.8 8.0 +/- 1.2

< 1.4 MW-PB-15 08/16117

< 174 MW-PB-15 12/12/17

< 181

!11 Reported values are TOTAL (not Dissolved)

B-1

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTIOM ATOMIC POWER STATION, 2017 RES UL TS IN UNITS OF PC I/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis)

Gr-A(Sus)

Gr-B(Dis)

Gr-B (Sus)

MW-PB-16 01 /19/17

< 189 MW-PB-16 05/10/17

< 183

< 7.7

< 0.9 4.0 +/- 1.1 3.5 +/- 1.1 11.9 +/- 1.2

< 1.5 MW-PB-16 08/16/17

< 172 MW-PB-16 12/12/17

< 183 MW-PB-19 01 /18/17

< 193 MW-PB-19 02/17/17

< 180 MW-PB-19 05/09/1 7

< 180

< 9.7

< 0.9

< 0.7

< 0.5 2.3 +/- 0.7

< 1.5 MW-PB-19 08/14/17

< 171 MW-PB-19 12/11 /17

< 179 MW-PB-20 01/18/17

< 192 MW-PB-20 05/09/17

< 192 MW-PB-20 08/14/17

< 170 MW-PB-20 12/12/17

< 181 MW-PB-21 01/19/17

< 189 MW-PB-21 05/09/17

< 180 MW-PB-21 09/11/17

< 177 MW-PB-21 12/12/17 181 +/- 119 MW-PB-22 01/19/17 322 +/- 135 MW-PB-22 05/09/1 7 220 +/- 122 MW-PB-22 08/1 4/1 7 379 +/- 122 MW-PB-22 12/12/1 7 663 +/- 140 MW-PB-24 01/18/17 260 +/- 132 MW-PB-24 02/17/17 257 +/- 125 MW-PB-24 02/21 /17 355 +/- 137 MW-PB-24 02/27/17 298 +/- 134 MW-PB-24 03/06/17 650 +/- 149 MW-PB-24 03/06/17 Recount 815 +/- 155 MW-PB-24 03/06/17 Reanalysis 757 +/- 152 MW-PB-24 03/13/17 735 +/- 154 MW-PB-24 03/27/17 504 +/- 138 MW-PB-24 04/03/17 2250 +/- 284 MW-PB-24 04/12/17 1680 +/- 232 MW-PB-24 04/17/1 7 1660 +/- 232 MW-PB-24 04/24/17 922 +/- 171 MW-PB-24 05/09/17 1840 +/- 248

< 9.2

< 1.0

< 1.2

< 0.5 3.3 +/- 1.0

< 1.5 MW-PB-24 06/15/17 1540 +/- 218 MW-PB-24 07/11/17 1490 +/- 218 MW-PB-24 08/15/1 7 1490 +/- 214 MW-PB-24 09/11/17 1850 +/- 246 MW-PB-24 12/12/17 284 +/- 127 MW-PB-24 12/21/17 510 +/- 140 MW-PB-25 01/18/17 TBE 8540 +/- 903 MW-PB-25 01/1 8/17 TBE 6610 +/- 714 MW-PB-25 01/18/1 7 GEL 9100 +/- 415 MW-PB-25 02/02/1 7 5400 +/- 584 MW-PB-25 02/17/17 16300 +/- 1680 MW-PB-25 02/21 /17 10800 +/- 1130 MW-PB-25 02/27/17 17600 +/- 1810 MW-PB-25 03/06/17 10900 +/- 1140 MW-PB-25 03/13/17 13500 +/- 1400 MW-PB-25 03/20/17 4800 +/- 533 MW-PB-25 03/27/17 6070 +/- 668 MW-PB-25 04/03/17 4420 +/- 496 MW-PB-25 04/12/17 6400 +/- 692 MW-PB-25 04/17/17 6210 +/- 674 MW-PB-25 04/24/17 7760 +/- 835 MW-PB-25 05/09/17 5810 +/- 633

< 5.8

< 0.7

< 0.8

< 0.5 8.5 +/- 1.0

< 1.5 MW-PB-25 06/15/17 5130 +/- 569 MW-PB-25 07/11/17 4950 +/- 564 B-2

TABLE B-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTIOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A(Dis)

Gr-A (Sus)

Gr-B(Dis)

Gr-B(Sus)

MW-PB-25 08/15/17 TBE 5240 +/- 577 MW-PB-25 08/15/17 TBE 6610 +/- 715 MW-PB-25 08/15/17 GEL 6230 +/- 273 MW-PB-25 09/11/17 4860 +/- 539 MW-PB-25 12/12/17 13900 +/- 1440 MW-PB-25 12/12/17 Recount 13800 +/- 1430 MW-PB-25 12/12/17 Reanalysis 12700 +/- 1320 MW-PB-25 12/21/17 12800 +/- 1330 MW-PB-26 01/18/17 239 +/- 129 MW-PB-26 02/21 /17

< 193 MW-PB-26 02/27/17 245 +/- 130 MW-PB-26 03/06/17 252 +/- 126 MW-PB-26 03/13/17 256 +/- 130 MW-PB-26 03/20/17 418 +/- 137 MW-PB-26 03/27/17 272 +/- 127 MW-PB-26 04/03/17 217 +/- 127 MW-PB-26 04/12/17 319 +/- 133 MW-PB-26 04/17/17 333 +/- 136 MW-PB-26 04/24/17

< 191 MW-PB-26 05/09/17

< 193

< 3.9

< 0.8 2.7 +/- 1.0

< 0.5 5.1 +/- 0.9

< 1.5 MW-PB-26 06/15/17

< 195 MW-PB-26 07/11/17 201 +/- 122 MW-PB-26 08/15/17 267 +/- 122 MW-PB-26 09/11/17

< 176 MW-PB-26 12/12/17 189 +/- 124 MW-PB-26 12/21 /17 237 +/- 126 MW-PB-27 01 /18/17 816 +/- 157 MW-PB-27 02/21/17 476 +/- 144 MW-PB-27 02/27/17 533 +/- 144 MW-PB-27 03/06/17 482 +/- 138 MW-PB-27 03/13/17 563 +/- 145 MW-PB-27 03/20/17 730 +/- 153 MW-PB-27 03/27/17 890 +/- 164 MW-PB-27 04/03/17 942 +/- 163 MW-PB-27 04/12/17 596 +/- 145 MW-PB-27 04/17/17 773 +/- 155 MW-PB-27 04/24/17 847 +/- 163 MW-PB-27 05/09/17 TBE 676 +/- 152

< 4.3

< 0.7 2.3 +/- 0.9

< 0.5 5.1 +/- 1.0

< 1.5 MW-PB-27 05/09/17 TBE 560 +/- 147

< 4.6

< 0.7 2.1 +/- 0.9

< 0.5 4.5 +/- 0.9

< 1.5 MW-PB-27 05/09/17 GEL 603 +/- 129

< 1.4

< 0.8 6.3 +/- 1.7 (1) 3.7 +/- 0.7 (1)

MW-PB-27 06/15/17 608 +/- 149 MW-PB-27 07/11/17 758 +/- 152 MW-PB-27 08/15/17 621 +/- 141 MW-PB-27 09/11/17 610 +/- 140 MW-PB-27 12/12/17 504 +/- 137 MW-PB-27 12/21/17 467 +/- 137 MW-PB-28 01/18/1 7

< 193 MW-PB-28 02/17/17

< 179 MW-PB-28 05/09/17

< 185

< 5.1

< 0.8

< 0.8

< 0.9 3.4 +/- 0.8

< 1.6 MW-PB-28 08/14/17

< 169 MW-PB-28 12/11/17 TBE

< 184 MW-PB-28 12/11/17 TBE 190 +/- 119 MW-PB-28 12/11/17 GEL

< 139 MW-PB-28 12/12/17

< 183 (1) Reported values are TOTAL (not Dissolved)

B-3

TABLE 8-1.1 CONCENTRATIONS OF TRITIUM, STRONTIUM, GROSS ALPHA AND GROSS BETA IN GROUNDWATER AND SEEP SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PC I/LITER +/- 2 S IGMA COLLECTION SITE DATE H-3 Sr-89 Sr-90 Gr-A (Dis)

Gr-A (Sus)

Gr-B (Dis)

Gr-B (Sus)

MW-PB-29 01/18/17 476 +/- 142 MW-PB-29 02/02/17 287 +/- 124 MW-PB-29 04/11/17 341 +/- 132 MW-PB-29 05/09/17 285 +/- 128

< 6.4

< 0.8

< 0.6

< 0.8 2.7 +/- 0.7

< 1.6 MW-PB-29 08/15/17 31 0 +/- 120 MW-PB-29 09/12/17

< 189 MW-PB-29 10/06/17 594 +/- 142 MW-PB-29 10/06/17 Recount 446 +/- 132 MW-PB-29 10/06/17 Reanalysis 427 +/- 127 MW-PB-29 12/11/17 318 +/- 127 MW-PB-30 01/18/17 TBE 1350 +/- 200 MW-PB-30 01/18/17 TBE 1440 +/- 209 MW-PB-30 01/18/17 GEL 1480 +/- 184 MW-PB-30 02/02/17 1050 +/- 162 MW-PB-30 04/11/17 920 +/- 161 MW-PB-30 05/09/17 338 +/- 130

< 5.4

< 0.7

< 0.6

< 0.9 2.4 +/- 0.7

< 1.6 MW-PB-30 08/15/17 TBE 251 0 +/- 303 MW-PB-30 08/15/17 TBE 2720 +/- 325 MW-PB-30 08/15/17 GEL 2600 +/- 185 MW-PB-30 09/12/17 2390 +/- 300 MW-PB-30 10/06/17 1700 +/- 237 MW-PB-30 12/11/17 448 +/- 134 MW-PB-31 01/19/17

< 191 MW-PB-31 05/09/17

< 184

< 6.1

< 0.7

< 0.9

< 0.9 2.3 +/- 0.8

< 1.6 MW-PB-31 08/14/17

< 171 MW-PB-31 09/12/17

< 184 MW-PB-31 10/06/17

< 186 MW-PB-31 12/11/17

< 183 U/2 YARD DRAIN 01/20/1 7 242 + 129 U/2 YARD DRAIN 02/17/17 205 + 123 U/2 YARD DRAIN 04/19/17

< 189

< 4.0

< 0.4

< 0.8

< 0.7 2.8 +/- 0.8

< 1.5 U/2 YARD DRAIN 07/20/17

< 169 U/2 YARD DRAIN 10/16/17

< 187 U/3 YARD DRAIN 01 /20/17 1150 + 180 U/3 YARD DRAIN 02/16/17 1020 + 165 U/3 YARD DRAIN 02/21/17 631 +/- 153 U/3 YARD DRAIN 02/27/17 731 +/- 153 U/3 YARD DRAIN 03/06/17 516 +/- 142 U/3 YARD DRAIN 03/13/17 564 +/- 146 U/3 YARD DRAIN 03/20/17 529 +/- 144 U/3 YARD DRAIN 03/27/17 391 +/- 133 U/3 YARD DRAIN 04/03/17 463 +/- 138 U/3 YARD DRAIN 04/11/17 335 +/- 135 U/3 YARD DRAIN 04/17/17 348 +/- 139 U/3 YARD DRAIN 05/10/17 203 +/- 130

< 4.7

< 0.7

< 1.1

< 1.4 3.7 +/- 1.1

< 2.7 U/3 YARD DRAIN 09/11/17

< 175 U/3 YARD DRAIN 12/11/17 195 + 124 U/3 CST E RECAPTURE 02/27/17

< 194 U/3 CST S RECAPTURE 02/27/17

< 191 U/3 MOAT SUMP 02/17/17 8180 + 865 8-4

TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER AND SEEP WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE 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-PB-1 05/10/17 TBE

< 3

<4

< 8

< 3

< 7

< 3

< 6

< 10

< 4

< 3

< 20

< 8 MW-PB-1 05/10/17 TBE

< 3

<4

< 9

< 4

< 8

< 5

< 7

< 13

< 4

< 4

< 27

< 8 MW-PB-1 05/10/17 GEL

< 1

< 1

< 3

< 2

< 3

< 2

< 3

< 5

< 2

< 2

< 10

< 3 MW-PB-2 05/09/17

< 3

<4

< 9

<4

< 7

< 4

< 8

< 14

< 4

< 4

< 28

< 9 MW-PB-3 05/09/17

<4

< 5

< 11

< 5

< 10

< 6

< 9

< 15

< 5

< 5

< 32

< 13 MW-PB-4 05/09/17

<4

<4

< 10

< 4

< 9

< 5

< 8

< 14

<4

< 4

< 31

< 8 MW-PB-5 05/10/17

<4

< 5

< 11

<4

< 8

< 5

< 9

< 13

<4

< 5

< 32

< 13 MW-PB-6 05/10/17

< 4

<4

< 10

<4

< 11

< 5

< 9

< 15

< 5

< 5

< 32

< 12 MW-PB-7 05/10/17

< 5

< 5

< 10

< 4

< 9

< 4

< 9

< 14

<4

< 5

< 32

< 12 MW-PB-7 05/10/17

<4

< 4

< 9

< 4

< 8

< 4

< 6

< 12

<4

< 4

< 25

< 8 MW-PB-7 05/10/17 GEL

< 1

< 1

< 3

< 1

< 3

< 1

< 3

< 5

< 1

< 2

< 10

< 4 MW-PB-8 01/19/17

< 5

< 5

< 11

< 5

< 11

< 6

< 8

< 15

< 5

< 5

< 31

< 11 MW-PB-8 05/10/17

< 4

< 5

< 9

< 3

< 8

< 5

< 8

< 15

< 4

< 4

< 29

< 8 MW-PB-8 08/15/17

< 2

< 2

< 5

< 2

<4

< 2

< 4

< 14

< 2

< 2

< 24

< 7 MW-PB-8 12/12/17

< 2

< 2

<4

< 2

< 3

< 2

< 4

< 11

< 2

< 2

< 19

< 6 Ol MW-PB-10 01/19/17

< 3

< 4

< 8

< 3

< 7

< 4

< 7

< 10

< 4

< 4

< 23

< 7 I

MW-PB-10 05/10/17

<4

<4

< 8

<4 U1

< 10

< 5

< 8

< 15

<4

< 4

< 31

< 8 MW-PB-10 08/16/17

< 2

< 2

< 6

< 2

< 5

< 3

< 5

< 13

< 2

< 2

< 23

< 8 MW-PB-10 12/12/17

< 2

< 3

< 6

< 3

< 5

< 3

< 5

< 14

< 3

< 3

< 25

< 8 MW-PB-12 05/09/17

< 3

< 5

< 10

< 5

< 10

< 5

< 8

< 15

< 5

< 5

< 31

< 12 MW-PB-13 05/09/17

<4

< 4

< 11

<4

< 8

< 5

< 8

< 15

< 5

< 5

< 28

< 12 MW-PB-14 05/10/17

<4

< 4

< 9

< 4

< 8

< 4

< 8

< 15

< 5

< 4

< 29

< 9 MW-PB-15 01/19/17

< 2

< 3

< 7

< 3

< 6

< 3

< 6

< 8

< 2

< 3

< 20

< 6 MW-PB-15 05/10/17

< 3

< 5

< 10

< 4

< 7

< 4

< 8

< 14

< 5

< 4

< 30

< 8 MW-PB-15 08/16/17

< 2

< 2

< 6

< 2

< 4

< 3

< 5

< 14

< 2

< 2

< 24

< 7 MW-PB-15 12/12/17

< 2

< 2

< 5

< 2

< 5

< 3

< 4

< 12

< 2

< 2

< 21

< 7 MW-PB-16 01/19/17

< 3

< 3

< 7

< 3

< 6

< 3

< 6

< 8

< 3

< 3

< 19

< 6 MW-PB-16 05/1 0/17

< 3

< 4

< 10

< 3

< 9

< 5

< 7

< 14

< 5

< 4

< 33

< 11 MW-PB-16 08/16/17

< 2

< 3

< 5

< 2

< 5

< 3

< 5

< 15

< 3

< 2

< 25

< 7 MW-PB-16 12/12/17

< 2

< 3

< 6

< 3

< 5

< 3

< 5

< 15

< 3

< 2

< 25

< 8 MW-PB-19 05/09/17

< 2

< 3

< 5

< 3

< 4

< 3

< 4

< 9

< 3

< 3

< 18

< 6 MW-PB-20 05/09/17

< 2

< 2

<4

< 2

< 4

< 3

< 4

< 9

< 2

< 2

< 17

< 5 MW-PB-21 05/09/17

< 3

< 3

< 8

< 3

< 6

< 4

< 6

< 14

< 4

< 3

< 28

< 7 MW-PB-22 05/09/17

< 2

< 3

< 6

< 3

< 5

< 3

< 5

< 11

< 3

< 3

< 23

< 7 MW-PB-24 05/09/17

< 3

<4

< 9

<4

< 7

<4

< 7

< 13

< 4

< 4

< 27

< 10 MW-PB-24 12/12/17

< 2

< 2

< 6

< 2

< 4

< 3

< 4

< 13

< 2

< 2

< 22

< 7 MW-PB-25 05/09/17

< 3

< 3

< 7

< 3

< 5

< 3

< 6

< 12

< 3

< 3

< 24

< 7 MW-PB-25 12/12/17

< 2

< 3

< 6

< 2

< 5

< 3

< 5

< 14

< 3

< 2

< 25

< 8 MW-PB-26 05/09/17

< 3

< 3

< 6

< 3

< 5

< 3

< 5

< 10

< 3

< 3

< 23

< 7 MW-PB-26 12/12/17

< 2

< 2

< 5

< 2

< 4

< 2

< 4

< 11

< 2

< 2

< 20

< 8

TABLE B-1.2 CONCENTRATIONS OF GAMMA EMITTERS IN GROUNDWATER AND SEEP WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE 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-PB-27 05/09/17

<2

< 3

< 6

< 2

< 4

< 3

< 4

< 8

< 3

< 2

< 17

< 5 MW-PB-27 05/09/17

< 3

< 3

< 8

< 3

< 6

< 4

< 6

< 10

< 4

< 3

< 21

< 7 MW-PB-27 05/09/17 GEL

< 1

< 1

< 3

< 2

< 3

< 1

< 2

<4

< 1

< 1

< 10

< 3 MW-PB-27 12/12/17

< 2

< 3

< 6

< 2

< 5

< 3

<4

< 11

< 2

< 2

< 23

< 9 MW-PB-28 05/09/17

< 3

< 3

< 6

< 3

< 5

< 3

< 5

< 9

< 3

< 3

< 21

< 7 MW-PB-29 05/09/17

<4

< 4

< 9

<4

< 8

< 5

< 7

< 11

<4

< 4

< 26

< 10 MW-PB-30 05/09/17

< 3

<4

< 8

<4

< 6

<4

< 6

< 12

< 4

< 3

< 23

< 8 MW-PB-31 05/09/17

< 3

<4

< 7

< 3

< 7

< 4

< 6

< 15

< 4

< 3

< 28

< 8 U/2 YARD DRAIN 04/19/17

< 5

< 5

< 11

< 5

< 10

< 7

< 10

< 11

< 5

< 6

< 29

< 8 U/3 YARD DRAIN 05/10/17

< 4

< 4

< 10

< 4

< 9

< 4

< 8

< 11

< 4

< 4

< 25

< 10 to,

(7)

TABLE B-1.3 CONCENTRATIONS OF HARD-TO-DETECTS IN GROUNDWATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE Am-241 Cm-242 Cm-243/244 Pu-238 Pu-239/240 U-234

  • U-235*

U-238 Fe-55 Ni-63 MW-PB-1 05/10/17 GEL < 0.28

< 0.36

< 0.28

< 0.52

< 0.52

< 0.51 0.55 +/- 0.50

< 0.57

< 68

< 3.7 MW-PB-7 05/10/17 GEL < 0.45

< 0.30

< 0.35

< 0.59

< 0.59

< 0.48

< 0.54

< 0.58

< 67

< 3.2 MW-PB-24 05/09/17

< 0.16

< 0.07

< 0.12

< 0.06

< 0.10

< 0.12

< 0.15

< 0.12

< 169

< 3.9 MW-PB-25 05/09/17

< 0.09

< 0.10

< 0.05

< 0.08

< 0.14 0.61 +/- 0.21

< 0.10 0.29 +/- 0.15

< 189

< 4.1 MW-PB-26 05/09/17

< 0.05

< 0.07

< 0.15

< 0.04

< 0.11 5.40 +/- 1.51

< 0.12 1.48 +/- 0.70

< 124

< 4.0 MW-PB-27 05/09/17 TBE < 0.05

< 0.05

< 0.19

< 0.04

< 0.13 5.08 +/- 1.33

< 0.11 1.23 +/- 0.59

< 149

< 3.9 MW-PB-27 05/09/17 TBE < 0.07

< 0.05

< 0.13

< 0.07

< 0.18 5.64 +/- 1.67

< 0.13 2.58 +/- 1.04

< 164

< 3.9 MW-PB-27 05/09/17 GEL < 0.39

< 0.27

< 0.24

< 0.47

< 0.80 4.48 +/- 1.10 0.54 +/- 0.47 1.69 +/- 0.69

< 67

< 3.8 OJ I....,

  • GEL Labs reports U-234 as U-234/235 and U-235 as U-235/236

TABLE B-11.1 CONCENTRATIONS OF TRITIUM IN SURFACE WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 SW-PB-1 01/19/17

< 188 SW-PB-1 05/10/17

< 187 SW-PB-1 08/16/17

< 171 SW-PB-1 12/12/17

< 189 SW-PB-5 01/19/17

< 191 SW-PB-5 05/10/17

< 185 SW-PB-5 08/15/17

< 172 SW-PB-5 12/11/17

< 179 SW-PB-5 TBE 12/12/17

< 181 SW-PB-5 TBE 12/12/17

< 190 SW-PB-5 GEL 12/12/17

< 135 SW-PB-6 TBE 01/18/17

< 188 SW-PB-6 TBE 01/18/17

< 194 SW-PB-6 GEL 01/18/17

< 149 SW-PB-6 05/10/17

< 185 SW-PB-6 08/15/17

< 170 SW-PB-6 12/12/17

< 189 SP-PB-1 01/18/17

< 190 SP-PB-1 05/09/17

< 186 SP-PB-1 08/14/17

< 172 SP-PB-1 12/11/17

< 190 SP-PB-2 01/18/17

< 191 SP-PB-2 02/17/17

< 181 SP-PB-2 05/09/17

< 185 SP-PB-2 08/14/17

< 168 SP-PB-2 12/11/17

< 189 SP-PB-3 03/27/17

< 188 SP-PB-3 05/09/17

< 183 SP-PB-3 09/11/17

< 186 B-8

CD co TABLE B-11.2 COLLECTION SITE DATE SW-PB-1 05/10/17 SW-PB-5 05/10/17 SW-PB-6 05/10/17 SP-PB-1 05/09/17 SP-PB-2 05/09/17 SP-PB-3 05/09/17 CONCENTRATIONS OF GAMMA EMITTERS IN SURFACE WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA Mn-54 Co-58 Fe-59 Co-60 Zn-65 Nb-95 Zr-95 1-131 Cs-134 Cs-137 Ba-140 La-140

< 4

< 4

< 9

< 5

< 8

< 5

< 8

< 13

<4

< 5

< 26

< 10

< 3

<4

< 7

<4

< 7

< 4

< 7

< 12

< 4

< 3

< 25

< 7

<4

<4

< 11

< 5

< 9

< 5

< 9

< 13

< 5

< 5

< 32

< 12

< 3

< 3

< 6

< 3

< 6

< 3

< 5

< 11

< 3

< 3

< 21

< 6

< 4

< 4

< 10

< 4

< 7

< 5

< 7

< 13

< 5

< 5

< 30

< 9

< 4

< 4

< 10

< 4

< 9

< 5

< 8

< 14

<4

< 4

< 30

< 9

TABLE B-111.1 CONCENTRATIONS OF TRITIUM IN PRECIPITATION WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PC I/LITER+/- 2 SIGMA COLLECTION SITE DATE H-3 1A 02/02/17

< 188 1A 03/02/17

< 189 1A 03/30/17

< 193 1A 04/27/17

< 186 1A 06/01/17

< 183 1A 06/29/17

< 196 1A 07/27/17

< 175 1A 08/31/17

< 174 1A 09/28/17

< 175 1A 11/02/17

< 182 1A 11/30/17

< 195 1A 12/28/17

< 185 18 02/02/17

< 192 18 03/02/17

< 193 18 03/30/17

< 192 18 04/27/17

< 182 18 06/01/17

< 182 18 06/29/17

< 198 18 07/27/17

< 178 18 08/31/17

< 179 18 09/28/17

< 177 18 11/02/17

< 178 18 11/30/17

< 193 18 12/28/17

< 189 1S 02/02/17

< 190 1S 03/02/17

< 191 1S 03/30/17

< 190 1S 04/27/17

< 166 1S 06/01/17

< 185 1S 06/29/17

< 198 1S 07/27/17

< 178 1S 08/31/17

< 184 1S 09/28/17

< 175 1S 11/02/17

< 184 1S 11/30/17

< 193 1S 12/28/17

< 186 1SSE 02/02/17

< 191 1SSE 03/02/17

< 189 1SSE 03/30/17

< 189 1SSE 04/27/17

< 164 1SSE 06/01/17

< 183 1SSE 06/29/17

< 194 1SSE 07/27/17

< 179 1SSE 08/31/17

< 184 1SSE 09/28/17

< 176 1SSE 11/02/17

< 182 1SSE 11/30/17

< 194 1SSE 12/28/17

< 183 12 02/02/17

< 191 12 03/02/17

< 193 12 03/30/17

< 194 8-10

TABLE B-111.1 CONCENTRATIONS OF TRITIUM IN PRECIPITATION WATER SAMPLES COLLECTED AS PART OF THE RADIOLOGICAL GROUNDWATER PROTECTION PROGRAM, PEACH BOTTOM ATOMIC POWER STATION, 2017 RESULTS IN UNITS OF PCI/LITER +/- 2 SIGMA COLLECTION SITE DATE H-3 1Z 04/27/17

< 171 1Z 06/01/17

< 183 1Z 06/29/17

< 196 1Z 07/27/17

< 179 1Z 08/31/17

< 177 1Z 09/28/1 7

< 171 1Z 11/02/17

< 184 1Z 11/30/17

< 197 1Z 12/28/17

< 179 4M 02/02/17

< 189 4M 03/02/1 7

< 192 4M 03/30/17

< 193 4M 04/27/17

< 184 4M 06/01/17

< 183 4M 06/29/17

< 198 4M 07/27/17

< 179 4M 08/31/17

< 178 4M 09/28/17

< 178 4M 11/02/17

< 181 4M 11/30/17

< 183 4M 12/28/17

< 184 B-11