ML19137A095

Annual Radiological Environmental Operating Report, January 1, 2018 - December 31, 2018.

ML19137A095
Person / Time
Site:	Ginna
Issue date:	05/15/2019
From:	Exelon Generation Co, Ginna
To:	Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
Download: ML19137A095 (105)

Text

ATTACHMENT 2 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT JANUARY 1, 2018- DECEMBER 31, 2018 R.E. Ginna Nuclear Power Plant, LLC

Exelon Generation ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT:

JANUARY 1, 2018 - DECEMBER 31, 2018 MAY2019 111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111 R.E. Ginna Nuclear Power Plant 1503 Lake Road Ontario, New York 14519

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE OF CONTENTS LIST OF FIGURES .........................-............................................................................................... ii LIST OF TABLES ......................................................................................................................... iii

1. EXECUTIVE

SUMMARY

.................................................................................................... l

2. INTRODUCTION .................................................................................................................. 2 2.1 Station Description ............................................................................................................ 2 2.2 Program Description and Background .............................................................................. 2 2.3 Program Objectives ........................................................................................................... 2

3. PROGRAM DESCRIPTION ................................................................................................. 3 3.1 Sample Collection and Analysis ....................................................................................... 3 3.2 Data Interpretation ............................................................................................................. 3 3.3 Quality Assurance Program .............................................................................................. 3 3.4 Land Use Survey ............................................................................................................... 4 3.5 Program Exceptions .......................................................................................................... 5 3.6 Corrections to Previous Reports ........................................................................................ 5

4. RESULTS AND DISCUSSIONS .......................................................................................... 6 4.1 Aquatic Environment ........................................................................................................ 6 4.1.a Surface and Drinking Water ....................................................................................... 6 4.1.b Aquatic Organisms ..................................................................................................... 7 4.1.c Shoreline Sediment .................................................................................................... 7 4.2 Atmospheric Environment ................................................................................................ 7 4.2.a Air Iodine ................................................................................................................... 8 4.2.b Air Particulate Filters ................................................................................................. 8 4.3 Terrestrial Environment ................................................ .-................................................... 8 4.3.a Vegetation .................................................................................................................. 8 4.3.b Milk ............................................................................................................................ 9 4.4 Direct Radiation ................................................................................................................ 9 4.5 Groundwater .................................................................................................................... 11 4.6 Summary and Conclusion ............................................................................................... 11

5. REFERENCES .........................................._........................................................................... 12 Appendix A REMP Sample Locations ..................................................................................... 16 Appendix B REMP Analytical Results ..................................................................................... 25 Appendix C Quality Assurance Program ................................................................................. 53 Appendix D Land Use Survey .................................................................................................. 66 Appendix E Interpretations and Graphical Representations ....................................... 69

January 1 - December 31, 2018 Docket Nos. 50-244 LIST OF FIGURES Figure Title Page 1 Hypothetical Maximum Direct Radiation Dose Exposure per Year ................................. 10 A-1 Map of New York State and Lake Ontario Showing Location of R.E. Ginna Nuclear Power Plant ....................................................................... ~ ................................................ 21 A-2 Onsite Sample Locations ................................................................................................... 22 A-3 Offsite Sample Locations (TLDs and milk farms within 5 miles) ..................................... 23 A-4 Water Sample, Milk Farms and TLD Locations ................................................................ 24 E-1 E-Series 1, Table B-1 (Gross Beta Values for Surface and Drinking Water ................ 71 E-2 E-Series 2, Table B-5 / B-6 (Beta in Air Particulates) .......................................... 75 E-3 E-Series 3, Table B-12 (Direct Radiation) ....................................................... 80 E-4 E-Series 4, Table B-13 (Tritium in Groundwater) ............................................... 93 ii

January 1 - December 31, 2018 Docket Nos. 50-244 LIST OF TABLES Table Title Page 1 Synopsis of R.E. Ginna Nuclear Power Plant Radiological Environmental Monitoring Program ............................................................................................ *.................................. 13 2 Annual Summary of Radioactivity in the Environs of the R.E. Ginna Nuclear Power Plant

............................................................................................................................................ 14 A-1 Locations of Environmental Sampling Stations for the R.E. Ginna Nuclear Plant.. ............ 18 B-1 Concentration of Tritium, Gamma Emitters and Gross Beta in Surface and Drinking Water

............................................................................................................................................ 27 B-2

• Concentration of Gamma Emitters in the Flesh of Edible Fish ........................................... 30 B-3 Concentration of Gamma Emitters in Sediment.. ................................................................. 31 B-4 Concentration of Iodine-131 in Filtered Air (Charcoal Cartridges) ..................................... 32 B-5 Concentration of Beta Emitters in Air Particulates - Onsite Samples ................................. 35 B-6 Concentration of Beta Emitters in Air Particulates - Offsite Samples ................................. 39 B-7 Concentration of Gamma Emitters in Air Particulates ........................................................ .41 B-8 Concentration of Gamma Emitters in Vegetation Samples .................................................. 43 B-9 Concentration of Gamma Emitters (including 1-131) in Milk ............................................ .44 B-10 Typical MDA Ranges for Gamma Spectrometry ................................................................. 45 B-11 Typical LLDs for Gamma Spectrometry ............................................................................. 46 B-12 Direct Radiation ................................................................................................................... 47 B-13 Groundwater Monitoring Wells ........................................................................................... 50 C-1 Results of Participation in Cross Check Programs ............................................................... 55 C-2 Results of Quality Assurance Program ................................................................................ 57 C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry ......................... 64 D-1 Land Use Survey Distances .................................................................................................. 67 iii

January 1 - December 31, 2018 Docket Nos. 50-244

1. EXECUTIVE

SUMMARY

The Radiological Environmental Monitoring Program (REMP) is a comprehensive surveillance program, which is implemented to assess the impact of site operations on the environment and compliance with 10 CFR 50 Appendix I and 40 CFR 190. Samples are collected from the aquatic and terrestrial pathways applicable to the site. The aquatic pathways include Lake Ontario fish, surface waters, groundwater, and lakeshore sediment. The terrestrial pathways include airborne particulate and radioiodine, milk, food products, and direct radiation.

Results of the monitoring program for the 2018 operational period for R.E. Ginna Nuclear Power Plant are included in this report. This report presents a synopsis of the REMP (Table 1),

summary of the detectable activity analytical results (Table 2), sampling locations (Appendix A),

compilation of the analytical data (Appendix B), results of the Quality Assurance Program (Appendix C), and results of the Land Use Survey (Appendix D). Interpretation of the data and conclusions are presented in the body of this report.

The results of the REMP verify that the effluent releases did not impact the environment with a measurable concentration of radioactive materials and/or levels of radiation that are higher than expected. The 2018 results for all pathways sampled were consistent with the previous five-year historical results and exhibited no adverse trends. The results of the REMP continue to demonstrate that the operation of the plant does not result in a measurable dose to a member of the general population, or adversely impact the environment as a result of radiological effluents.

The program continues to demonstrate that the dose to a member of the public, as a result of the operation of R.E. Ginna Nuclear Power Plant, remains significantly below the federally required dose limits specified in 10 CFR 20 and 40 CFR 190.

1-January 1 - December 31, 2018 Docket Nos. 50-244

2. INTRODUCTION 2.1 Station Description The R.E. Ginna Nuclear Power Plant (Ginna), owned by Exelon Generation, is an operating nuclear generating facility consisting of one pressurized water reactor. Ginna achieved criticality in September 1969 and commenced commercial operation in July 1970. The location of the plant in relation to local metropolitan areas is depicted in Appendix A, Figure A-1.

2.2 Program Description and Background The Annual Radiological Environmental Operating Report (AREOR) is published in accordance with Section 8.0 of the Offsite Dose Calculation Manual (ODCM, Ref. 1) and the Plant's Technical Specifications (Ref. 2). This report describes the REMP, and its implementation as required by the ODCM. The environmental surveillance data collected during this reporting period were compared with that generated in previous periods whenever possible to evaluate the environmental radiological impact of the R.E. Ginna Nuclear Power Plant. Results of the monitoring program for the pre-operational and previous operational periods through 2017 have been reported in a series of previously released documents.

The REMP is implemented to measure radioactivity in the aquatic and terrestrial pathways. The aquatic pathways include Lake Ontario fish, surface waters, groundwater, and lakeshore sediment. Measurement results of the samples representing these pathways contained only natural background radiation or low concentrations of Cs-137 resulting from past atmospheric nuclear weapons testing. Terrestrial pathways monitored included airborne particulate and radioiodine, milk, food products, and direct radiation.

• 2.3 Program Objectives The objectives of the REMP for the R.E. Ginna Nuclear Power Plant are:

a. Measure and evaluate the effects of plant operation on the environment.

b. Monitor background radiation levels in the environs of the Ginna site.

c. Demonstrate compliance with the environmental conditions and requirements of applicable state and federal regulations, including the ODCM and 40 CFR 190.

d. Provide information by which the general public can evaluate environmental aspects of the operation of R.E. Ginna Nuclear Power Plant.

2

___J

January 1 - December 31, 2018 Docket Nos. 50-244

3. PROGRAM DESCRIPTION 3.1 Sample Collection and Analysis The locations of the individual sampling stations are listed in Table A-1 and shown in Figures A-2 and A-3. All samples were collected and analyzed by Exelon personnel or its contractors in accordance with Ginna procedures (Ref. 3).

• During 2018, 1348 samples were collected for analysis by gross beta counting, tritium, and/or gamma spectroscopy. These included 89 surface water samples, 16 fish samples, 6 sediment samples, 624 air particulate samples, 312 air iodine samples, 28 vegetation samples, 38 milk samples, 71 groundwater samples, and 164 dosimeter measurements. Deviations from the REMP sampling schedule are described in section 3.5. This monitoring program satisfied the minimum number of samples required by the ODCM for all pathways.

R.E. Ginna Nuclear Power Plant's Chemistry personnel collected all REMP samples. Analysis was performed at either Ginna's onsite laboratory (groundwater samples), Environmental Dosimetry Company in Sterling Massachusetts (direct radiation samples), or Exelon Industrial Services - Ft. Smallwood Environmental Laboratory in Baltimore, Maryland (surface and drinking water, aquatic organisms, shoreline sediment, air particulate filters, air iodine, and vegetation samples). A summary of the content of the REMP and the results of the data collected for indicator and control locations are provided in Tables 1 and 2.

3.2 Data Interpretation Many results in environmental monitoring occur at or below the minimum detectable activity (MDA). In this report, all results below the relevant MDA are reported as being "not detected." Typical MDA values are listed in Appendix B, Table B-10.

3.3 Quality Assurance Program Appendix C provides a summary of Exelon Industrial Services (EIS) - Ft. Smallwood Environmental Laboratory's quality assurance program for 2018. It consists of Table C-1, which a

represents compilation of the results of the EIS - Ft. Smallwood Environmental Laboratory's participation in an inter-comparison program with Environmental Resource Associates (ERA) located in Arvada, Colorado and Analytics, Inc. located in Atlanta, Georgia. Table C-2 compiles the results of the Exelon Industrial Services Ft. Smallwood Laboratory's participation in a split sample program with Teledyne Brown Engineering located in Knoxville, Tennessee. Table C-3 identifies a list of typical MD As achieved by Teledyne Brown for Gamma Spectroscopy.

All the EIS - Ft. Smallwood Environmental Laboratory results contained in Table C-1 agree with the inter-comparison laboratory results within the range of +/-2 cr between the analytical values or are in agreement with the ranges established in the NRC Resolution Test Criteria.

3

January 1 - December 31, 2018 Docket Nos. 50-244 All the results contained in Table C-2 agree within the range of +/-2 cr of each other with their respective Ft. Smallwood Environmental Laboratory original, replicate and/or Teledyne Brown Engineering's split laboratory samples.

3.4 Land Use Survey In September 2018, Ginn a staff conducted a Land Use Survey to identify the location of the nearest milk animal, the nearest residence, and the nearest garden greater than 500 square feet in each of the nine sectors within a five-mile radius of the power plant. The Land Use Survey is conducted in accordance with Ginna procedures (Ref. 4). If changes are noted in the annual Land Use Survey, alterations to Ginna's REMP program would be made to ensure sampling practices cover these new areas of potential public exposure. The position of the nearest residence and garden and animals producing milk for human consumption in each sector is provided in Appendix D, Table D-1.

Over the past year, the following land use observations were made within a 5-mile radius of the power plant:

• The nearest residence remains in the SSE sector, approximately 610 meters from the reactor.

• Single-family home/ senior housing subdivision/ development construction was observed near the plant on LaFrank Drive (Ontario), and South of Route 104 near Tops Plaza (Ontario).

• Lake Front Estates and Summer Lake subdivisions continue to expand along with the southeast corner of Lake Road and Slocum Road.

• Other single-family home construction was observed sporadically within 5-miles of the plant.

• A new 120-acre commercial hydroponic farm continues construction on the east-end of Timothy Lane (North of Route 104). During 2018, this facility did not become operational.

• Commercial fishing information was collected from the New York State Department of Environmental Conservation (NYSDEC) which shows activity only in the Eastern basin of Lake Ontario. Commercial fishing operations have not changed in the last five-years and no commercial fishing takes place within 5-miles of Ginna.

• No new agricultural land use was identified.

• No new food producing facilities were identified as the commercial hydroponic farm is not currently growing produce. *

• No new milk producing animals were identified.

4

January 1 - December 31, 2018 Docket Nos. 50-244 3.5 Program Exceptions The reportable items in the Annual Environmental Radiological Operating Report under procedure CHA-RETS-VARIATION are as follows:

• On 4/6/18, Environmental Sample Station ES3 (Air Sample Station) was found to be out of service following a significant wind event. The volume collected during this time period was 86.5 m3, which does not meet the minimum required sample volume for the sample period.

• On 4/19/18, TLD16 (SW Corner of orchard, approximately 3000' West of plant, approximately 200' North of Lake Road) was found on the ground during quarterly TLD changeout. TLD 16 was changed out for the quarter. TLD64 (Westside of direct road, adjacent to orchard) which is near TLD16 did not experience any sampling anomalies.

The cause of TLD 16 being on the ground was the storm which brought high winds on 3/2/18.

• On 4/19/18, TLD32 (Woodard Road at County Line Road, pole at Northwest corner) was found remounted on an incorrect pole facing the incorrect direction (away from reactor center-line) during quarterly TLD changeout. This TLD is located between TLD3 l (Lake Road, pole 20' North of road, 500' East of Salt Road) and TLD33 (County Line Road at RR tracks, pole approximately 100' East along tracks). The cause of TLD32 being remounted on the wrong pole in the wrong direction was the storm which brought high winds on 3/2/18.

• On 4/27/18, Environmental Sample Station ES3 (Air Sample Station) was relocated from GPS coordinates (43.27643, -77.30366) to GPS coordinates (43.27667, -77.30646) due to an ongoing power supply issue. Both*locations remain in the same meteorological sector.

For the sampling period from 4/23/18 - 4/27/18, the sample collection station collected 41.9 m 3 of sample. After relocation where the sample period was from 4/27/18 to 4/30/18, 133.6 m 3 of sample was collected. The same particulate filter was used for both sampling periods. This volume meets the minimum amount required, but the change in location has been noted as an exception.

• On 12/3/18, Environmental Sample Station ES6 (Air Sample Station) was found to be out of service. The volume collected during this time was 69.0 m3, which does not meet the minimum required sample volume for the sample period.

3.6 Corrections to Previous Reports There are no corrections necessary to any previously submitted Annual Radiological Environmental Operating Report (AREOR).

5

January 1 - December 31, 2018 Docket Nos. 50-244

4. RESULTS AND DISCUSSIONS All environmental samples collected during the year were analyzed in accordance with Exelon analytical procedures (Ref. 5). The analytical results for this reporting period are presented in Appendix B and the detectable activity results are also summarized in Table 2. For discussion purposes, the analytical results are divided into five categories: Aquatic Environment, the Atmospheric Environment, the Terrestrial Environment, Direct Radiation, and Groundwater.

4.1 Aquatic Environment The aquatic environment surrounding the plant was monitored by analyzing samples of surface and drinking water, Lake Ontario fish, and shoreline sediment. These samples were obtained from various sampling locations near the plant.

4.1.a Surface and Drinking Water Monthly composite samples are collected from Lake Ontario at an upstream control location (Monroe County Water Authority - Sho.remont) and a downstream indicator location (Ontario Water District Plant - OWD) and analyzed for gross beta activity (Table B-1). A grab sample of Deer Creek is collected and analyzed monthly for gross beta activity (Table B-1 ). Lake Ontario is a primary indicator for sampling due to the close proximity to the station as well as the Lake providing recreational activities which could be a means of public exposure. Additionally, liquid releases from the station enter Lake Ontario waters, which leads to sampling of this environment, in all its forms, to be a priority.

In 2018, the gross beta averages for the upstream Lake Ontario monitoring locations (controls) and downstream Lake Ontario monitoring locations (indicators) were 2.89 pCi/Liter and 2.69 pCi/Liter, respectively. Gross beta analysis of the monthly composite samples showed no statistically significant difference in activity between the control and indicator locations that would indicate plant related activity higher than background.

The average gross beta concentration seen in the Mill Creek samples (control) and the Deer Creek (indicator) samples were 3.96 pCi/Liter and 4.27 pCi/Liter, respectively. Results from Deer Creek (indicator) and Mill Creek (control) are higher than other surface water samples within the REMP program due to naturally occurring radiological daughter products from radon within the soil being introduced into the samples. These naturally occurring radiological daughter products would exist in this environ at these same levels even if Ginna had never been built. Gross beta analysis of the samples showed no statistically significant difference in activity between the control and indicator locations that would indicate plant related activity higher than background.

Gamma isotopic analysis is performed on each monthly composite sample. These are listed in Table B-1 and are separated by source of sample. During 2018, no sample results indicated detection of gamma activity above MDA.

6

January 1 - December 31, 2018 Docket Nos. 50-244 Tritium analysis was performed on all water samples on a monthly basis. Composites are made from the weekly samples and a portion filtered to remove interferences for analysis by beta scintillation. During 2018, no surface water or drinking water sample results indicated detectable tritium activity.

4.1.b Aquatic Organisms Indicator fish are caught in the vicinity of the Discharge Canal and analyzed for radioactivity from liquid effluent releases from the plant. The fish are filleted to represent that portion which would normally be eaten and represents the likely pathway for human exposure. Additional fish are caught more than 15 miles away to be used as control samples and are prepared in the same manner.

At a minimum, four different edible species of fish are analyzed during each half-year from the indicator and background locations. Fish are caught by R;E. Ginna Nuclear Power Plant Chemistry personnel and are analyzed by gamma spectroscopy after being held for periods typically less than two weeks to keep the LLD value for the shorter half-life isotopes realistic.

Detection limits could also be affected by small mass samples, (< 2000 grams), in some species.

gamma isotopic concentrations (pCi/kilogram wet) are listed in Table B-2.

During 2018, none of the indicator samples indicated activity other than naturally occurring radionuclides.

4.1.c Shoreline Sediment Samples of shoreline sediment are taken upstream (Town of Greece near Slater Creek) and downstream (Near the Ontario Water District) of R.E. Ginna Nuclear Power Plant. The control sample is typicaJ of the lake bottom, rich in mollusk shells and rocky particulate. These samples are analyzed for radionuclides that a member of the public would be expected to encounter during swimming and wading activities. Similarly, indicator samples are collected at the Bear Creek boat dock as this is another recreational area accessible to the public.

Results of the gamma isotopic analysis for sediment are included in Table B-3. During 2018, all sediment samples indicated that gamma emitters were below detection limits.

4.2 Atmospheric Environment Radioactive particles in air are collected by drawing approximately one standard cubic foot per minute (SCFM) through a two-inch diameter particulate filter. The volume of air sampled is measured by a dry gas meter and corrected for the pressure drop across the filter. The filters are changed weekly and allowed to decay for three days prior to counting to eliminate most of the natural radioactivity such as the short half-life decay products of radon. The decay period is used to give a more sensitive measurement of long-lived man-made radioactivity.

7

January 1 - December 31, 2018 Docket Nos. 50-244 A ring of six sampling stations is located on the plant site from 180 to 440 meters from the reactor centerline near the point of the maximum annual average ground level concentration, one additional sampling location is located on-site at 770 meters, and two others offsite at approximately seven miles. In addition, there are three sampling stations located approximately seven to 16 miles from the site that serve as control stations. The arrangement of air sampling stations in .concentric rings around the station would ensure the environment would be appropriately monitored if a radiological release were to occur. See Figure A-2 and Figure A-4.

4.2.a Air Iodine Radioiodine cartridges are placed at six locations. These cartridges are changed and analyzed each week. No positive analytical results were found on any sample. A list of values for these cartridges is given in Table B-4.

4.2.b Air Particulate Filters The major airborne species released as gaseous effluents are noble gases and tritium. Most of this activity is released in a gaseous form; however, some radioiodine is released as airborne particulate and some of the particulate activity is due to short lived noble gas decay products.

Tables B-5 provides a list of gross beta analysis values for the on"'site sample stations. Table B-6 is a list of gross beta analysis values for the off-site sample stations.

Based on the weekly comparisons, there was no statistical difference between the control and indicator radioactive particulate concentrations. The average for the control samples (i.e., offsite sampling locations) was 0.023 pCi/m3 and the averages for the indicator samples (i.e., onsite sampling locations) was 0.022 pCi/m3 for the period of January to December 2018. Maximum weekly concentrations for all control stations and all indicator stations were 0.047 pCi/m3 and 0.048 pCi/m3 , respectively.

The particulate filters from each sampling location were saved and a 13-week composite was made. A gamma isotopic analysis was performed for each sampling location and corrected for decay. No positive analytical results were found on any sample. The results of these analyses are listed in Tables B-7.

4.3 Terrestrial Environment Crops are grown on the plant property in a location with a highest off-site meteorological deposition parameter, and samples of the produce are collected at harvest time for analysis.

Control samples are purchased from farms greater than 10 miles from the plant.

4.3.a Vegetation There was no indication in the vegetation samples contained activity greater than naturally occurring background levels. Both onsite (indicator) and offsite (control) vegetation samples are rinsed prior to sampling as this is the expected behavior to be exhibited by a member of the public prior to consuming any produce. Analyses revealed that there was no difference in the 8

January 1 - December 31, 2018 Docket Nos. 50-244 radiological activity observed in the indicator and control sampling locations. Gamma isotopic data is provided in Table B-8.

4.3.b Milk Although there are no indicator dairy herds located within five miles from the plant, Ginna has elected to continue sampling the milk pathway as a supplemental sample to satisfy this potential exposure pathway to a member of the public. This pathway is specific to gaseous radiological releases from Ginna station that could deposit onto the grazing pastures of dairy farms. When.

these grazing cows are milked, any potential radiological exposure received by the cow could enter the human pathway.

In 2018, milk samples were collected monthly during November through May from the indicator farm and biweekly during June through October. Samples are collected twice as frequently in the summer as the likelihood of cows grazing and not consuming stored feed is higher during this time. A control farm sample is taken for each monthly sample and once during each biweekly period. The milk is analyzed for Iodine-131 and also analyzed by gamma spectroscopy.

During 2018, no samples indicated I-131 activity above detection levels. There was no difference in the radiological activity observed in the indicator and control sampling locations.

Table B-9 provides a listing of all samples collected and analytical results.

4.4 Direct Radiation Dosimeters are placed as part of the environmental monitoring program. 41 dosimeter badges are currently placed in four rings around the plant. These rings range from less than 1,000 feet to 15 miles and have been dispersed to give indications in each of the nine land-based sectors around the plant should an excessive release occur from the plant. Badges are changed and read after approximately three months exposure. Each direct radiation sampling location is described in Table A-1 and identified in Figure A-2.

Direct radiation readings at locations #7 and #13 are influenced by their close proximity to the site's Independent Spent Fuel Storage Installation (ISFSI) and will normally read slightly higher than other locations. Environmental Station 13, the closest sampling location.to the ISFSI, received an average quarterly dose of 18.4 mRem during 2018. All onsite indicators averaged 12.2 mRern/qtr.

For the year of 2018, the average, minimum, and maximum exposure readings was as follows:

Monitoring Groug Average Min. Max (rnrern/gtr) (rnrern/gtr) (rnrern/gtr)

Onsite Indicators 12.2 8.8 19.2 Site Boundary Indicators 12.1 9.2 15.1 Offsite Indicators 11.1 8.1 13.2 Control Locations 10.5 8.8 11.8 9

January! -December 31, 2018 Docket Nos. 50-244 40 CFR 190 requires that the annual dose equivalent not exceed 25 millirem to the whole body of any member of the public. The average quarterly exposure observed at the control monitoring stations was used to determine the background level (equivalent to 10.5 millirems monthly or 42.0 millirem annually), while the highest total annual dosimeter reading at an individual site boundary environmental monitoring location (55.2 millirem) was observed at Environmental Monitoring Station #64. The difference in these values determines the maximum possible direct radiation dose exposure to an offsite member of the public. Accordingly, the hypothetical maximum direct radiation dose exposure to the public for 2018 was determined to be 13.2 millirem by subtraction of average background from the maximum annual indicator site.

Figure 1 represents the hypothetical maximum direct radiation dose exposure over the past fifteen years. As noted in the 2011 Annual Radiological Environmental Operating Report (AREOR) , an apparent upward trend with the reported average annual direct radiation dose was identified. It was noted that the average annual direct dose to an offsite member of the public had increased 2- 3 mRem since 2008 (Condition Report CR-2012-001275). Ginna staff evaluated this apparent trend and concluded the elevated dosimeter readings were likely the result of increased onsite hold times after the dosimeters had been collected.

Figure 1 HYPOTHETICAL MAXIMUM DIRECT RADIATION DOSE EXPOSURE PER YEAR 30 25 ro (I) 20 E

~

E 15 (I)

V')

0 0

u

....(I) 10 0

5 0

2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018

- Max (mrem/yr) 8 8 7.6 6 7.2 11.7 10.4 12.4 11 12.1 11.7 10.2 12.8 13.1 13.2

- 40CFR190 Limit 25 25 25 25 25 25 25 25 25 25 25 25 25 25 25 Year 10

January 1 - December 31, 2018 Docket Nos. 50-244 4.5 Groundwater Groundwater monitoring wells have been established in close proximity to the station and are routinely sampled by Ginna personnel. In 2018, Ginna staff collected and analyzed samples collected from a total of 14 groundwater monitoring wells:

• GWOl: Warehouse Access Road (Control)

• • GW03: Screenhouse West, South Well GW04: Screenhouse West, North Well

• GW05: Screenhouse East, South (15.5')

• GW07: Screenhouse GW06: East, Middle (20.0')

• GW08: All Screenhouse East, North (24.0')

• GWlO: TechnicalVolatiles Treatment Building

• GWll: Contaminated Support Center, South

• GW12: West of OrchardStorage Building, SE (24.0')

• GW13: North of Independent Access Road

• GW14: South of Canister Preparation Spent Fuel Storage Installation (ISFSI)

• GW15: West of Manor House Building

• GW16: Southeast of Manor House Tritium is sampled for at nuclear facilities due to it the migration capabilities of tritium.

Essentially, tritium, when in an aqueous form, flows like water and can be found in surface water, groundwater, and atmospheric environs due to evaporative processes found in nature.

Nuclear stations place a sensitivity on detecting tritium in the environment as it is an efficient marker to show if radioactivity has been introduced off-site. Groundwater samples are analyzed for tritium to a detection limit of 500 pCi/L, and for gamma emitting radionuclides to the environmental LLDs. The analytical results for groundwater monitoring well samples collected during 2018 are presented in table B-13.

No positive tritium results were identified in any of the groundwater monitoring wells during 2018.

4.6 Summary and Conclusion Operation of the R.E. Ginna Nuclear Power Plant produced radioactivity and ambient radiation levels significantly below the limits of the ODCM and 40 CFR 190. The analytical results from the Radiological Environmental Monitoring Program indicate the operation of the R.E. Ginna Nuclear Power Plant had no measurable radiological impact on the environment or measurable build-up of plant-related radionuclides in the environment. The results also indicate operation of the plant did not result in a measurable radiation dose to the general population above natural background levels.

Additionally, the 2018 results are consistent with data for the past seven years and exhibited no detectable increases or adverse trends. Further explanation on REMP data can be found in Appendix E.

11

January I -December 31, 2018 Docket Nos. 50-244

5. REFERENCES

1. Procedure CY-GI-170-300, Offsite Dose Calculation Manual (ODCM) R.E. Ginna Nuclear Power Plant, Revision 33 - 36 (Effective Date: 12/19/2017 - end of 2018)

2. R.E. Ginna Nuclear Power Plant, Technical Specification 5.6.2; Annual Radiological Environmental Operating Report.

3. Procedure CY-AA-170-100, Radiological Environmental Monitoring Program.

4. Procedure CH-ENV-LAND-USE, Land Use Census; Completed September 2018.

5. Exelon Industrial Services -Ft. Smallwood Environmental Laboratory Procedures Manual, General Services Department.

12

January 1 - December 31, 2018 Docket Nos. 50-244 Table 1 Synopsis of R.E. Ginna Nuclear Power Plant Radiological Environmental Monitoring Program Sample Type Sampling Number of Number Collected Analysis Analysis Number Analyzed Frequency 1 Locations Frequency 1 Aquatic Environment Surface & Drinking MIC 7 89 Gamma MC/MG 89 Water 89 Gross Beta MC/MG 89 89 Tritium M/Q 89 Fish 2 A 4 16 Gamma A 16 Shoreline Sediment SA 2 6 Gamma SA 6 Groundwater M/Q 14 71 Tritium M/Q 71 71 Gamma M/Q 71 Atmospheric Environment Air Iodine 3 w 6 312 1-131 w 312 Air Particulates4 w 12 624 Gross Beta w 624 48 Gamma QC 48 Direct Radiation Ambient Radiation Q 41 164 TLD Q 164 Terrestrial Environment Milk5 M/BW 2 38 Gamma M/BW 38 Vegetation 6 M 4 28 Gamma M 28 1 W=Weekly, BW=BiWeekly (15 days), M=Monthly (31 days), Q=Quarterly (92 days), SA=Semiannual, A=Annual, C=Composite 2

Twice during fishing season including at least four species.

3 The collection device contains activated charcoal.

4 Beta counting is performed 2'. 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> following filter change. Gamma spectroscopy performed on quarterly composite of weekly samples.

5 Bi-Weekly during growing season.

6 Annual at time of harvest. Samples include broad leaf vegetation.

13

January 1 - December 31, 2018 Docket Nos. 50-244 Table 2 Annual Summary of Radioactivity in the Environs of the R.E. Ginna Nuclear Power Plant Medium or Pathway Type and Total Lower Limit of Indicator Locations Location with Highest Annual Control Locations Sampled (Unit of Number of Analyses Detection (LLD) Mean (F)/Range 1 Highest Annual Mean (F) / Rarige 1 Mean (F)/Range Measurement) Performed Mean Name/Distance &

Direction2 Aquatic Environment Surface & Drinking Gamma (89) 2.3 (Cs-137) -- (51/51) . -- (13/13) -- (25/25)

Water Tritium (89) 2000 -- (51/51) -- (13/13) -- (25/25)

(pCi/L)

Surface & Drinking Gross Beta (89) 0.5 2.69 (51/51) Deer Creek- 4.27 (12/12) 2.89 (25/25)

Water, (1.28 - 11.00) ESE (1.41 - 11.00) (1.22 - 8.05)

(pCi/L)

Sediment Gamma (6) . 17 (Cs-137) -- (4/4) -- (4/4) -- (2/2)

(pCi/kg)

Fish Gamma (16) 15 (Cs-137) -- (8/8) -- (8/8) -- (8/8)

(pCi/kg) (--) (--)

Groundwater Tritium (71) 500 -- (71/71) -- (12/12) -- (4/4)

(pCi/L) Gamma (71) 2.3 (Cs-137) -- (71/71) -- (12/12) -- (4/4)

Direct Radiation Ambient Radiation Dosimeters (164) 11.8 (128/128) Env. Station 13 18.4 (4/4) 10.5 (36/36)

(mR/91 days) (8.1-19.2) 0.77kmSSW (17.4-19.2) (8.8-11.8) 14

l January 1-December 31, 2018 Docket Nos. 50-244 Table 2 Annual Summary of Radioactivity in the Environs of the R.E. Ginna Nuclear Power Plant Medium or Pathway Type and Total Lower Limit of Indicator Locations Location with Highest Annual Control Locations Sampled (Unit of Number of Analyses Detection (LLD) Mean (F)/Range 1 Highest Annual Mean (F) / Range 1 Mean (F)/Range Measurement) Performed Mean Name/Distance &

Direction2 Atmospheric Environment Air Iodine 1-131 (312) 0.002 -- (260/260) -- (52/52) -- (52/52)

( 10*2 pCi/m3) (--) (--) (--)

Air Particulates Gross Beta (624) 0.5 2.2 (467 /467) Env. Station 3 - 2.4 (52/52) 2.3. (156/156)

(10* 2 pCi/m3) (0.9-4.8) 0.44 km ESE (1.1 - 4.8) (0.8 -4.7)

Air Particulates Gamma (48) 1.8 (Cs-137) -- (36/36) -- (4/4) -- (12/12)

(10* 3 pCi/m 3) (--) (--) (--)

Terrestrial Environment Milk Gamma (38) 0.01 (1-131) -- (19/19) -- (19/19) --(19/19)

(pCi/L) (--) (--) (--)

Vegetation Gamma (28) 27 (Cs-137) -- (20/20) -- (8/8) --(8/8)

(pCi/L) 1 Mean and range based upon detectable measurements only. Fraction (F) of detectable measurements at specified location is indicated in parentheses 2

From the center point of the containment building.

-- No detectable activity at specified location.

15

January 1 - December 31, 2018 Docket Nos. 50-244 APPENDIX A REMP Sample Locations Summary of Appendix A Content Appendix A contains information concerning the environmental samples which were collected during this operating period.

Sample locations and specific information about individual locations for Ginna are provided in Table A-1.

Figure A-1 shows the location of the R.E. Ginna Nuclear Power Plant in relation to New York State and Lake Ontario. Figures A-2, A-3, and A-4 show the locations of the power plant sampling sites in relation to the plant site at different degrees of detail.

16

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE OF CONTENTS - SAMPLING LOCATIONS Table Title Page A-1 Locations of Environmental Sampling Stations for the RE Ginna Nuclear Power Plant ... 18 Figure Title Page A-1 Map of New York State and Lake Ontario Showing Location of RE. Ginna Nuclear Power Plant ................................................................................................................................... 21 A-2 Onsite Sample Locations ...................................................................................................... 22 A-3 Offsite Sample Locations (TLDs and milk farms within 5 miles) ....................................... 23 A-4 Water Sample, Milk Farms and TLD Locations .................................................................. 24 17

January 1 - December 31, 2018 Docket Nos. 50-244 TABLEA-1 Locations of Environmental Sampling Stations for the R.E. Ginna Nuclear Plant Station Description Distance Direction Meters Miles Sector

. Air Samplers ' *.

2 Manor House Yard 360 0.22 E 3 North of Training Center Parking Lot 220 0.14 ESE 4 East of Training Center Parking Lot 320 0.20 SE 5 Creek Bridge 180 0.11 SSE 6 Onsite-SW side of plant parking lot 300 0.19 SW 7 Onsite-utility pole along West plant fence 240 0.15 WSW 8 Seabreeze 19840 12.33 WSW 9 Webster 11150 6.93 SW 10 Walworth 12730 7.91 s 11 Williamson 11540 7.17 ESE 12 Sodus Point 25170 15.64 E 13 Substation 13 770 0.48 SSW Direct Radiation

• 2 Onsite-Manor House Yard 360 0.22 E 3 Onsite-In field approximately 200 ft SE of station #2 440 0.27 ESE 4 Onsite- East of Training Center Parking Lot 320 0.19 SE 5 Onsite-Between creek and plant entry road 180 0.11 SSE 6 Onsite-SW side of plant parking lot . 300 0.19 SW 7 Onsite-utility pole along West plant fence 240 0.15 WSW 8 Topper Drive-Irondequoit, Seabreeze Substation #51 19840 12.33 WSW Phillips Road-Webster, intersection with Highway #104, 9 11150 6.93 SW Substation #74 10 Atlantic Avenue-Wal worth, Substation #230 12730 7.91 s 11 W. Main Street-Williamson, Substation #207 11540 7.17 ESE 12 Seaman Avenue-Sodus Point-Off Lake Road by 12 25170 15.64 E Sewer district, Substation #209 13 Onsite - South of Meteorological Tower 260 0.16 WNW 14 NW corner of field along lake shore 860 0.53 WNW Field access road, west of orchard, approximately 3000' 15 920 0.57 w West of plant SW Corner of orchard, approximately 3000' West of 16 1030 0.64 WSW plant, approximately 200' North of Lake Road Utility pole in orchard, approximately 75" North of Lake 17 510 0.32 SSW Road 18 Substation 13A fence, North Side 730 0.45 SSW 19 On NW corner of house 100' East of plant access road 460 0.29 s Approximately 150' West of Ontario Center Road and SSE 20 650 0.40 approximately 170' South of Lake Road 18

January 1 - December 31, 2018 Docket Nos. 50-244 Station Description Distance Direction Meters Miles Sector North side of Lake Road, approximately 200' East of 21 660 0.41 SE Ontario Center Road 22 North side of Lake Road, SE, property corner 920 0.57 SE East property line, midway between Lake Road and 23 780 0.49 ESE Lake shore 24 Lake shore near NE corner of property 730 0.45 E 25 Substation #73, Klem Road, adjacent to 897 Klem Road 14000 8.70 WSW 26 Service Center, Plank Road, West of 250 14600 9.07 SW Atlantic Avenue at Knollwood Drive utility pole, North 27 14120 8.77 SSW side of road Substation #193, Marion, behind Stanton Ag. Service, 28 17450 10.84 SE North Main Street Substation #208, Town Line Road (CR-118), 1000 '

29 14050 8.73 ESE North of Route 104 30 District Office, Sodus, on pole, West side of bldg 20760 12.90 ESE Lake Road, pole 20' North of road, 500' East of Salt 31 7330 4.56 w Road Woodard Road at County Line Road, pole@ Northwest 32 6070 3.77 WSW corner.

County Line Road at RR tracks, pole approximately 100' 33 7950 4.94 SW East along tracks 34 Pole at Route 104, Lincoln Road, SW Corner. 6520 4.05 SSW Transmission Right of Way, North of Clevenger Road 35 7490 4.65 SSW on pole.

Substation #205, Route 104, East of Ontario Center 36 Road, North side of fence.

5480 3.41 s 37 Rail Road Avenue, pole at 2048 5770 3.59 SSE 38 Fisher Road at RR Tracks, pole East of road 6910 4.29 SE Seeley Road, Pole South side 100' West of intersection 39 6930 4.31 ESE with Stony Lonesome Road 40 Lake Road at Stoney Lonesome Road, pole at SE corner 6440 4.00 E 63 Westside of warehouse access road 740 0.46 SW 64 Westside of direct road, adjacent to orchard 1190 0.74 w

- . Fish* ..

Lake Ontario Discharge Plume 2200 1.37 ENE Russell Station 25600 15.9 . w 19

January 1 - December 31, 2018 Docket Nos. 50-244

.*. Produce:(Vegetation) ,.

Indicator and background samples of various produce are collected from gardens grown on company property and purchased from farms > 10 miles from the plant.

Station Description Distance Direction Meters Miles Sector Onsite Supplemental Garden (E) 610 0.38 E Onsite Supplemental Garden (ESE) 430 0.27 ESE Onsite Supplemental Garden (SSE) 660 0.41 SSE Ir/ .-': :;:;.

t"C"/,,

.... ~** .*, .,, ; : ~i~f;'.ffl\~~:&t:~' ::;~at~H:: :.. '1<' .:. .:'.,Jf/.~i'6,t{;~I~£:

• *>,;< ,,..,*~,,, .... *--- ,*, ,," ',J;,,,:,~*1,,11;' ".; ,::,, ',,,. ' t:.:,,; ;.. ::;,;,;: tJ;; :t5  :~;*;er.;~; .* "

Shoremont/MCWA 27150 16.87 w Ontario Water District 2220 1.38 ENE Circ Water Intake 1070 0.66 N Circ Water Discharge 110 0.07 NNE Deer Creek Points Points ESE downstream downstream of Outfall of Outfall 006 006

< r)i< .. ,.) ,_/ * *. ';:,:-,.: "t:t..) Sei:liment * ',,

. ,**\,; . ;;,

'a' f*-.:- ./j, ,.**

./_'

Lake Ontario Discharge Plume 2200 1.37 ENE Russell Station 25600 15.91 w Bethnic 1070 0.66 N

' Milk Field Craft Farm, Williamson (Indicator) 8240 5.12 ESE Schultz Farm, S. Sodus (Control) 19030 11.82 SE 20

January 1 - December 31, 2018 Docket Nos. 50-244 Figure A-1 Map of New York State and Lake Ontario Showing Location of R.E. Ginna Nuclear Power Plant 21

January l - December 31, 2018 Docket Nos. 50-244 Figure A-2 Onsite Sample Locations

• TLD D AIR SAMPLER

~ TLD AND AIR SAMPLER 22

January 1 - December 31, 2018 Docket Nos. 50-244 Figure A-3 Offsite Sample Locations (TLDs and Milk Farms within 5 Miles) 23

January l - December 31 , 2018 Docket Nos. 50-244 Figure A-4 Water Sample, Milk Farms and TLD Locations

• Dosimeter r.l Air Sampler &

~ Dosimeter 24

January I -December 31, 2018 Docket Nos. 50-244 APPENDIXB REMP Analytical Results Summary of Appendix B Content Appendix B is a presentation of the analytical results for the R.E. Ginna Nuclear Power Plant radiological environmental monitoring programs.

25

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE OF CONTENTS -ANALYTICAL RESULTS Table Title Page B-1 Concentration of Tritium, Gamma Emitters and Gross Beta in Surface and Drinking Water

............................................................................................................................................ 27 B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish ........................................... 30 B-3 Concentration of Gamma Emitters in Sediment.. ................................................................. 31 B-4 Concentration of Iodine-131 in Filtered Air (Charcoal Cartridges) ..................................... 32 B-5 Concentration of Beta Emitters in Air Particulates - Onsite Samples ................................ .35 B-6 Concentration of Beta Emitters in Air Particulates - Offsite Samples ................................. 39 B-7 Concentration of Gamma Emitters in Air Particulates ........................................................ .41 B-8 Concentration of Gamma Emitters in Vegetation Samples .................................................. 43 B-9 Concentration of Gamma Emitters (including 1-131) in Milk ............................................ .44 B-10 Typical MDA Ranges for GammaSpectrometry .................................................................. 45 B-11 Typical LLDs for Gamma Spectrometry ............................................................................ .46 B-12 Direct Radiation ................................................................................................................... 47 B-13 Groundwater Monitoring Wells ........................................................................................... 50 26

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-1 Concentration of Tritium, Gamma Emitters and Gross Beta in Surface and Drinking Water (Results in units of pCi/L +/- 2cr)

Sample Code Sample Date Cs-137 Tritium Gamma Emitters 2 Gross Beta CIRC-IN Circulating Water Inlet - N 1/8/2018 < 2.3 <939

• 2.79 +/- 0.71 2/5/2018 <2.3 < 398

• 2.67 +/- 0.71 3/5/2018 <2.3 <948

• 2.51 +/- 0.70 4/2/2018 <2.3 < 951

• 2.68 +/- 0.69 4/30/2018 < 2.3 <930

• 2.48 +/- 0.68 5/29/2018 < 2.3 <934

• 2.38 +/- 0.69 6/25/2018 < 2.3 <940

• 1.73 +/- 0.64 7/23/2018 < 2.3 <949

• 2.30 +/- 0.70 8/20/2018 < 2.3 < 951

• 2.08 +/- 0.65 9/17/2018 < 2.3 < 961

• 1.90 +/- 0.64 10/15/2018 < 2.3 <943

• 1.37 +/- 0.65 11/12/2018 < 2.3 <952

• 1.84 +/- 0.63 12/10/2018 < 2.3 <960

• 2.65 +/- 0.70 CIRC-OUT Circulating Water Outlet - N 1/8/2018 < 2.3 <945

• 2.32 +/- 0.68 2/5/2018 < 2.3 <401

• 3.06 +/- 0.73 3/5/2018 < 2.3 <954

• 3.34 +/- 0.75 4/2/2018 < 2.3 <950

• 3.25 +/- 0.73 4/30/2018 < 2.3 < 931

• 2.04 +/- 0.65 5/29/2018 < 2.3 < 938

• 1.83 +/- 0.66 6/25/2018 < 2.3 <934

• 1.71 +/- 0.64 7/23/2018 < 2.3 <946

• 1.74 +/- 0.66 8/20/2018 < 2.3 < 951

• 1.90 +/- 0.64 9/17/2018 <2.3 < 957

• 2.25 +/- 0.66 10/15/2018 < 2.3 < 941

• 1.57 +/- 0.66 11/12/2018 <2.3 <949

• 2.72 +/- 0.69 12/10/2018 <2.3 < 955

• 2.65 +/- 0.71 DC Deer Creek - ESE 1/24/2018 <2.3 < 956

• 2.88 +/- 0.73 2/19/2018 <2.3 < 951

• 2.57 +/- 0.72 3/20/2018 <2.3 < 963

• 2.71 +/- 0.75 4/16/2018 <2.3 < 945

• 5.63 +/- 0.87 5/17/2018 <2.3 < 939

• 3.32 +/- 0.79 6/11/2018 <2.3 < 938

• 4.07 +/- 0.98 7/10/2018 <2.3 < 955

• 5.45 +/- 1.00 8/7/2018 <2.3 < 950

• 11.07 +/- 4.003 9/5/2018 <2.3 < 961

• 5.01 +/- 0.97 10/3/2018 <2.3 < 972

• 1.41 +/- 0.66 11/26/2018 < 2.3 < 969

• 4.13 +/- 0.80 12/5/2018 < 2.3 < 964

• 3.04 +/- 0.75 27

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-1 Concentration of Tritium,. Gamma Emitters and Gross Beta in Surface and Drinking Water (Results in units of pCi/L +/- 20')

Sample Code Sample Date Cs-137 Tritium Gamma Emitters 2 Gross Beta MCWA Monroe County W ater/Shoremont, Greece-W 1 1/8/2018 < 2.3 < 981

• 2.34 +/- 0.69 2/5/2018 < 2.3 <945

• 2.13 +/- 0.67 3/5/2018 < 2.3 <953

• 1.39 +/- 0.63 4/2/2018 < 2.3 < 943

• 2.08 +/- 0.65 4/30/2018 <2.3 < 933

• 2.33 +{- 0.67 5/29/2018 < 2.3 < 944

• 1.82 +/- 0.66 6/25/2018 < 2.3 < 936

• 1.52 +/- 0.64 7/23/2018 < 2.3 < 951

• 1.22 +/- 0.63 8/20/2018 < 2.3 < 959

• 1.63 +/- 0.63 9/17/2018 < 2.3 < 953

• 1.68 +/- 0.62 10/15/2018 <2.3 < 946

• 2.02 +/- 0.69 11/12/2018 < 2.3 < 951

• 2.09 +/- 0.65 12/10/2018 < 2.3 < 958

• 2.45 +/- 0.69 ML Mill Creek - SW 1 1/24/2018 < 2.3 <957

• 2.98 +/- 0.74 2/19/2018 < 2.3 <947

• 2.56 +/- 0.72 3/20/2018 < 2.3 < 957

• 3.01 +/- 0.77 4/16/2018 < 2.3 < 951

• 5.39 +/- 0.86 5/17/2018 <2.3 < 394

• 2.80 +/- 0.75 6/11/2018 <2.3 < 941

• 2.54 +/- 0.72 7/10/2018 < 2.3 < 943

• 4.95 +/- 0.92 8/7/2018 < 2.3 < 951

• 8.05 +/- 2.61 9/5/2018 < 2.3 <968

• 4.82 +/- 0.88 10/3/2018 < 2.3 < 972

• 2.93 +/- 0.78 11/26/2018 < 2.3 < 974

• 3.77 +/- 0.78 12/5/2018 < 2.3 < 975

• 3.73 +/- 0.79 w

Webster (Supplemental) 1/8/2018 <2.3 < 941

• 1.85 +/- 0.66 2/5/2018 <2.3 < 952

• 1.95 +/- 0.65 3/5/2018 < 2.3 <944

• 1.92 +/- 0.66 4/2/2018 < 2.3 <950

• 1.67 +/- 0.62 4/30/2018 < 2.3 <934

• 2.35 +/- 0.67 5/29/2018 < 2.3 <936

• 1.93 +/- 0.67 6/25/2018 < 2.3 < 931

• 1.85 +/- 0.65 7/23/2018 < 2.3 <954

• 1.53 +/- 0.65 8/20/2018 < 2.3 < 952

• 1.93 +/- 0.64 9/17/2018 < 2.3 < 961

• 1.46 +/- 0.61 10/15/2018 <2.3 < 943

• 1.72 +/- 0.67 11/12/2018 < 2.3 < 957

• 1.33 +/- 0.59 12/10/2018 <2.3 < 958

• 2.22 +/- 0.68 28

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-1 Concentration of Tritium, Gamma Emitters and Gross Beta in Surface and Drinking Water (Results in units of pCi/L +/- 2cr)

Sample Code Sample Date Cs-137 Tritium Gamma Emitters 2 Gross Beta OWD Ontario Water District - NE 1/8/2018 < 2.3 <943

• 2.64 +/- 0.71 2/5/2018 < 2.3 <949

• 2.21 +/- 0.67 3/5/2018 < 2.3 <953

• 3.37 +/- 0.76 4/2/2018 < 2.3 < 947

• 2.67 +/- 0.69 4/30/2018 < 2.3 < 937

• 2.13 +/- 0.66 5/29/2018 < 2.3 < 936

• 2.05 +/- 0.67 6/25/2018 < 2.3 < 943

• 1.30 +/- 0.62 7/23/2018 <2.3 < 955

• 1.31 +/- 0.63 8/20/2018 < 2.3 < 964

• 1.41 +/- 0.61 9/17/2018 <2.3 < 952

• 1.66 +/- 0.62 10/15/2018 <2.3 <947

• 1.28 +/- 0.64 11/12/2018 < 2.3 < 954

• 2.07 +/- 0.65 12/10/2018 < 2.3 <960

• 2.14 +/- 0.67 1 Control Location 2

All Non-Natural Gamma Emitters< MDA.

3 The cause of the elevated Gross Beta analysis for Deer Creek on 8/7/18 is due to seasonal stagnation of the creek allowing for accumulation of natural beta emitters in the low water level.

29

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-2 Concentration of Gamma Emitters in the Flesh of Edible Fish (Results in units of pCi/kg (wet)+/- 2cr)

Sample Code Sample Date Sample Type Gamma Emitters (Cs-137)

EAST 10/12/2018 Brown Trout

• East Sector 11/9/2018 Chinook Salmon

• Greece 1 5/11/2018 Brown Trout

• Control 5/11/2018 Chinook Salmon

• HAMLIN 1 5/18/2018 Largemouth Bass

• Control 5/18/2018 Smallmouth Bass

• 10/1/2018 Brown Trout

• 10/1/2018 Chinook Salmon

• 10/1/2018 Rainbow Trout

• 10/1/2018 Salmon

• NORTH 1/12/2018 Rainbow Trout

• North Sector 1/12/2018 Carp

• 1/23/2018 Brown Trout

• 1/24/2018 Smallmouth Bass

• 10/25/2018 Freshwater Drum

• 11/8/2018 Lake Trout

• EAST 10/12/2018 Brown Trout

• 1 Control Locations include Greece, NY and Irondequoit, NY.

30 .

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-3 Concentration of Gamma Emitters in Sediment (Results in units of pCi/kg (wet)+/- 2cr)

Sample Code Sample Date Gamma Emitters (Cs-137)

Shoreline EAST - Shoreline 5/7/2018

• East Sector 5/9/2018

• 8/6/2018

• 11/9/2018

• Greece 1 - Shoreline 5/7/2018

• Control 8/6/2018

• 1 Control Location 31

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-4 Concentration of Iodine-131 in Filtered Air (Charcoal Cartridges)

(Results in units of 10-2 pCi/m3 +/- 2cr)

Start Date Stop Date STATION-02 STATION-04 STATION-07 STATION- STATION-09 STATION-I I Manor House Training West Fence 08 1 Webster Williamson Yard Center Line Seabreeze Parkin er Lot 1/1/2018 1/8/2018 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 1/8/2018 1/15/2018 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 1/15/2018 1/22/2018 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 1/22/2018 1/29/2018 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 1/29/2018 2/5/2018 < 0.002 < 0.002 < 0.002 1/31/2018 2/6/2018 < 0.002 < 0.002 < 0.002 2/5/2018 2/12/2018 < 0.002 < 0.002 < 0.002 2/6/2018 2/13/2018 < 0.002 < 0.002 < 0.002 2/12/2018 2/19/2018 < 0.002 < 0.002 < 0.002 2/13/2018 2/20/2018 < 0.002 < 0.002 < 0.002 2/19/2018 2/26/2018 < 0.002 < 0.002 < 0.002 2/20/2018 2/27/2018 < 0.002 < 0.002 < 0.002 2/26/2018 3/5/2018 < 0.002 < 0.002 < 0.002 2/27/2018 3/6/2018 < 0.002 < 0.002 < 0.002 3/5/2018 3/13/2018 < 0.002 < 0.002 < 0.002 3/6/2018 3/13/2018 < 0.002 < 0.002 < 0.002 3/13/2018 3/19/2018 < 0.002 < 0.002 < 0.002 3/13/2018 3/20/2018 < 0.002 < 0.002 < 0.002 3/19/2018 3/26/2018 < 0.002 < 0.002 < 0.002 3/20/2018* 3/27/2018 < 0.002 < 0.002 < 0.002 3/26/2018 4/2/2018 , < 0.002 < 0.002 < 0.002 3/27/2018 4/3/2018 < 0.002 < 0.002 < 0.002 4/2/2018 4/9/2018 < 0.002 < 0.002 < 0.002 4/3/2018 4/10/2018 < 0.002 < 0.002 < 0.002 4/9/2018 4/16/2018 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 4/16/2018 4/23/2018 < 0.002 < 0.002 < 0.002 4/17/2018 4/24/2018 < 0.002 < 0.002 < 0.002 4/23/2018 4/30/2018 < 0.002 < 0.002 < 0.002 4/24/2018 5/1/2018 < 0.002 < 0.002 < 0.002 4/30/2018 5/8/2018 < 0.002 < 0.002 < 0.002 5/1/2018 5/8/2018 < 0.002 < 0.002 < 0.002 5/8/2018 5/15/2018 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 5/15/2018 5/21/2018 < 0.002 < 0.002 < 0.002 5/15/2018 5/22/2018 < 0.002 < 0.002 < 0.002 5/21/2018 5/29/2018 < 0.002 < 0.002 < 0.002 5/22/2018 5/30/2018 < 0.002 < 0.002 < 0.002 5/29/2018 6/4/2018 < 0.002 < 0.002 < 0.002 5/30/2018 6/5/2018 < 0.002 < 0.002 < 0.002 6/4/2018 6/12/2018 < 0.002 < 0.002 < 0.002 6/5/2018 6/12/2018 < 0.002 < 0.002 < 0.002 6/12/2018 6/19/2018 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 6/19/2018 6/25/2018 < 0.002 < 0.002 < 0.002 6/19/2018 6/26/2018 < 0.002 < 0.002 < 0.002 32

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-4 Concentration of Iodine-131 in Filtered Air (Charcoal Cartridges)

(Results in units of 10-2 pCi/m3 +/- 2o')

Start Date Stop Date STATION-02 STATION-04 STATION-07 STATION- STATION-09 STATION-I I Manor House Training West Fence 08 1 Webster Williamson Yard Center Line Seabreeze Parkin Lot 6/25/2018 7/2/2018 < 0.002 < 0.002 <*0.002 6/26/2018 7/3/2018 < 0.002 < 0.002 < 0.002 7/2/2018 7/9/2018 < 0.002 < 0.002 < 0.002 7/3/2018 7/10/2018 < 0.002 < 0.002 < 0.002 7/9/2018 7/16/2018 < 0.002 < 0.002 < 0.002 7/10/2018 7/17/2018 < 0.002 < 0.002 < 0.002 7/16/2018 7/23/2018 < 0.002 < 0.002 < 0.002 7/17/2018 7/24/2018 < 0.002 < 0.002 < 0.002 7/23/2018 7/30/2018 < 0.002 < 0.002 < 0.002 7/24/2018 7/31/2018 < 0.002 < 0.002 < 0.002 7/30/2018 8/6/2018 < 0.002 < 0.002 < 0.002 7/31/2018 8/7/2018 < 0.002 < 0.002 < 0.002 8/6/2018 8/13/2018 < 0.002 < 0.002 < 0.002 8/7/2018 8/15/2018 < 0.002 < 0.002 < 0.002 8/13/2018 8/20/2018 < 0.002 < 0.002 < 0.002 8/15/2018 8/21/2018 < 0.002 < 0.002 < 0.002 8/20/2018 8/27/2018 < 0.002 < 0.002 < 0.002 8/21/2018 8/28/2018 < 0.002 < 0.002 < 0.002 8/27/2018 9/4/2018 < 0.002 < 0.002 < 0.002 8/28/2018 9/5/2018 < 0.002 < 0.002 < 0.002 9/4/2018 9/11/2018 < 0.002 < 0.002 < 0.002 9/5/2018 9/11/2018 < 0.002 < 0.002 < 0.002 9/11/2018 9/17/2018 < 0.002 < 0.002 < 0.002 9/11/2018 9/18/2018 < 0.002 < 0.002 < 0.002 9/17/2018 9/25/2018 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 9/25/2018 10/2/2018 < 0.002 < 0.002 < 0.002 9/25/2018 10/3/2018 < 0.002 < 0.002 < 0.002 10/2/2018

• 10/9/2018 < 0.002 < 0.002 < 0.002 10/3/2018 10/9/2018 < 0.002 < 0.002 < 0.002 10/9/2018 10/16/2018 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 < 0.002 10/16/2018 10/22/2018 < 0.002 < 0.002 < 0.002 10/16/2018 10/23/2018 < 0.002 < 0.002 < 0.002 10/22/2018 10/29/2018 < 0.002 < 0.002 < 0.002 10/23/2018 10/30/2018 < 0.002 < 0.002 < 0.002 10/29/2018 11/6/2018 < 0.002 < 0.002 < 0.002 10/30/2018 11/6/2018 < 0.002 < 0.002 < 0.002 11/6/2018 11/12/2018 < 0.002 < 0.002 < 0.002 11/6/2018 11/13/2018 < 0.002 < 0.002 < 0.002 11/12/2018 11/19/2018 < 0.002 < 0.002 < 0.002 11/13/2018 11/20/2018 < 0.002 < 0.002 < 0.002 11/19/2018 11/26/2018 < 0.002 < 0.002 < 0.002 11/20/2018 11/27/2018 < 0.002 < 0.002 < 0.002 33

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-4 Concentration of Iodine-131 in Filtered Air (Charcoal Cartridges)

(Results in units of 10*2 pCi/m3 +/- 2cr)

Start Date Stop Date STATION-02 STATION-04 STATION-07 STATION- STATION-09 STATION-11 Manor House Training West Fence 08 1 Webster Williamson Yard Center Line Seabreeze

• Parkin Lot 11/26/2018 12/3/2018 < 0.002 < 0.002 < 0.002 11/27/2018 12/4/2018 < 0.002 11/27/2018 12/4/2018 < 0.002 < 0.002 12/3/2018 12/10/2018 < 0.002 - < 0.002 < 0.002 12/4/2018 12/11/2018 < 0.002 < 0.002 < 0.002 12/10/2018 12/18/2018 < 0.002 < 0.002 < 0.002 12/11/2018 12/19/2018 < 0.002 < 0.002 < 0.002 12/18/2018 12/26/2018 < 0.002 < 0.002 < 0.002 12/19/2018 12/27/2018 < 0.002 < 0.002 < 0.002*

12/26/2018 1/2/2019 < 0.002 < 0.002 < 0.002 12/27/2018 1/2/2019 < 0.002 < 0.002 < 0.002 1Control Location 34

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-5 Concentration of Beta Emitters in Air Particulates - Onsite Samples (Results in units of 10*2 pCi/m3 +/- 20' Uncertainty)

Start Date Stop Date STATION-02 STATION-03 STATION-04 STATION-OS STATION-06 STATION-07 STATION-13 Manor House East Field Training Center Creek Bridge Main Parking West Fence Substation 13 Yard Parking Lot Lot Line 1/1/2018 1/8/2018 2.5 +/- 0.1 2.8 +/- 0.3 2.6 +/- 0.2 2.4 +/- 0.1 2.4 +/- 0.1 2.2 +/- 0.1 2.6 +/- 0.1 1/8/2018 1/15/2018 2.2 +/- 0.1 2.5 +/- 0.2 2.3 +/- 0.1 2.2 +/- 0.1 2.5 +/- 0.1 2.1 +/- 0.1 2.5 +/- 0.1 1/15/2018 1/22/2018 4.1 +/- 0.2 4.5 +/- 0.3 3.1 +/- 0.2 3.9 +/- 0.2 4.5 +/- 0.2 4.1 +/- 0.2 4.1 +/- 0.2 1/22/2018 1/29/2018 1.9 +/- 0.1 2.1 +/- 0.2 2.1 +/- 0.1 2.1 +/- 0.1 1.9 +/- 0.1 1.9 +/- 0.1 1.9 +!- 0.1 1/29/2018 2/5/2018 1.8 +/- 0.1 2.2 +/- 0.2 2.1 +/- 0.1 1.8 +/- 0.1 1/31/2018 2/5/2018 1.9 +/- 0.1 1/29/2018 2/5/2018 1.6 +/- 0.1 1/31/2018 2/6/2018 1.8 +/- 0.1 2/5/2018 2/12/2018 2.5 +/- 0.1 3.0 +/- 0.2 2.4 +/- 0.1 2.6 +/- 0.1 2.7 +/- 0.1 2.4 +/- 0.1 2/6/2018 2/13/2018 3.1 +/- 0.1 2/12/2018 2/19/2018 3.4 +/- 0.2 3.9 +/- 0.3 3.5 +/- 0.2 3.4 +/- 0.2 3.5 +/- 0.2 3.3 +/- 0.1.

2/13/2018 2/20/2018 3.4 +/- 0.2 2/19/2018 2/26/2018 1.7 +/- 0.1 1.9 +/- 0.2 1.9 +/- 0.1 1.7 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 2/20/2018 2/27/2018 1.9 +/- 0.1 2/26/2018 3/5/2018 2.7 +/- 0.1 3.1 +/- 0.2 2.7 +/- 0.2 2.7 +/- 0.1 2.7 +/- 0.1 2.8 +/- 0.1 2/27/2018 3/6/2018 2.6 +/- 0.1 3/5/2018 3/13/2018 1.0 +/- 0.1 1.1 +/- 0.2 1.1 +/- 0.1 1.1 +/- 0.1 1.0 +/- 0.1 0.9 +!- 0.1 3/6/2018 3/13/2018 0.9 +/- 0.1 3/13/2018 3/19/2018 2.4 +/- 0.1 3.0 +/- 0.2 2.7 +/- 0.2 2.5 +/- 0.1 2.7 +/- 0.1 2.4 +/- 0.1 3/13/2018 3/20/2018 2.3 +/- 0.1

• 3/19/2018 3/26/2018 1.7 +/- 0.1 2.1 +/- 0.2 2.1 +/- 0.1 1.6 +/- 0.1 1.8 +/- 0.1 1.6 +/- 0.1 3/20/2018 3/27/2018 1.8 +/- 0.1 3/26/2018 4/2/2018 1.7 +/- 0.1 2.2 +/- 0.2 2.0 +/- 0.1 1.7 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 3/27/2018 4/3/2018 1.9 +/- 0.1 35

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-5 Concentration of Beta Emitters in Air Particulates - Onsite Samples (Results in units of 10-2 pCi/m3 +/- 20' Uncertainty)

Start Date Stop Date STATION-02 STATION-03 STATION-04 STATION-05 STATION-06 STATION-07 STATION-13 Manor House East Field Training Center Creek Bridge Main Parking West Fence Substation 13 Yard Parking Lot Lot Line 4/2/2018 4/9/2018 2.0 +/- 0.1 3.4 +/- 0.6 2.0 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1.

4/3/2018 4/10/2018 1.8 +/- 0.1 4/9/2018 4/16/2018 2.0 +/- 0.1 2.3 +/- 0.2 2.0 +/- 0.1 1.9 +!- 0.1 2.1 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 4/16/2018 4/23/2018 1.6 +/- 0.1 2.0 +/-.0.3 1.8 +/- 0.1 1.6 +/- 0.1 1.7 +/- 0.1 1.5 +/- 0.1 4/17/2018 4/24/2018 2.0 +/- 0.1 4/23/2018 4/30/2018 1.8 +/- 0.1 2.3 +/- 0.3 2.0 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 1.7 +/- 0.1 4/24/2018 5/1/2018 1.9 +!- 0.1 4/30/2018 5/8/2018 2.1 +/- 0.1 2.6 +/- 0.2 2.4 +/- 0.1 2.2 +/- 0.1 2.1 +/- 0.1 1.8 +/- 0.1 5/1/2018 5/8/2018 2.1 +/- 0.1 5/8/2018 5/15/2018 1.6 +/- 0.1 2.0 +/- 0.2 1.7 +/- 0.1 l.7+/-0.1 1.8 +/- 0.1 1.5 +/- 0.1 1.7 +/- 0.1 5/15/2018 5/21/2018 1.3 +/- o:i 1.8 +/- 0.2 1.5 +/- 0.1 1.5 +/- 0.1 1.4 +/- 0.1 1.3 +/- 0.1 5/15/2018 5/22/2018 1.6 +/- 0.1 5/21/2018 5/29/2018 2.4 +/- 0.1 3.0 +/- 0.2 2.6 +/- 0.1 2.7+/-0.1 2.6 +/- 0.1 2.2 +/- 0.1 5/22/2018 5/30/2018 2.4 +/- 0.1 5/29/2018 6/4/2018 1.5 +/- 0.1 1.8 +/- 0.2 l.8+/-0.1 1.6 +/- 0.1 l.7+/-0.1 1.2 +/- 0.1 5/30/2018 6/5/2018 1.2 +/- 0.1 6/4/2018 6/12/2018 1.1 +/- 0.1 1.6 +/- 0.2 1.3 +/- 0.1 1.2 +/- 0.1 1.2 +/- 0.1 1.0 +/- 0.1 6/5/2018 6/12/2018 1.3 +/- 0.1 6/12/2018 6/19/2018 1.8 +/- 0.2 2.4 +/- 0.2 2.0 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 1.8 +/- 0.1 l.8+/-0.1 6/19/2018 6/25/2018 1.6 +/- 0.1 1.9 +/- 0.2 1.8 +/- 0.1 1.6 +/- 0.1 1.9 +/- 0.2 l.4+/-0.1 6/19/2018 6/26/2018 1.6 +/- 0.1

-6/25/2018 7/2/2018 2.6 +/- 0.1 2.9 +/- 0.2 2.9 +/- 0.1 2.9 +/- 0.2 3.1 +/- 0.2 2.6 +/- 0.1 6/26/2018 7/3/2018 3.0 +/- 0.1 36

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-5 Concentration of Beta Emitters in Air Particulates - Onsite Samples (Results in units of 10-2 pCi/m3 +/- 2cr Uncertainty)

Start Date Stop Date STATION-02 STATION-03 STATION-04 STATION-OS STATION-06 STATION-07 STATION-13 Manor House East Field Training Center Creek Bridge Main Parking West Fence Substation 13 Yard Parking Lot Lot Line 7/2/2018 7/9/2018 2.0 +/- 0.1 2.5 +/- 0.2 2.1 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.2 2.1 +/- 0.1 7/3/2018 7/10/2018 2.1 +/- 0.1 7/9/2018 7/16/2018 2.7 +/- 0.1 3.2 +/- 0.2 2.8 +/- 0.1 2.9 +/- 0.2 3.3 +/- 0.2 3.0 +/- 0.2 7/10/2018 7/17/2018 2.7 +/- 0.1 7/16/2018 7/23/2018 2.0 +/- 0.1 2.0 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 2.0 +/- 0.2 2.1 +/- 0.1 7/17/2018 7/24/2018 1.6 +/- 0.1 7/23/2018 7/30/2018 1.6 +/- 0.1 1.7 +/- 0.1 1.6 +/- 0.1 1.6 +/- 0.1 1.8 +/- 0.2 1.6 +/- 0.1 7/24/2018 7/31/2018 1.7 +/- 0.1 7/30/2018 8/6/2018 4.1 +/- 0.2 4.8 +/- 0.2 4.1 +/- 0.2 4.0 +/- 0.2 4.3 +/- 0.2 4.2 +/- 0.2 7/31/2018 8/7/2018 4.0 +/- 0.2 8/6/2018 8/13/2018 2.6 +/- 0.1 2.8 +/- 0.1 2.4 +/- 0.1 2.5 +/- 0.1 2.8 +/- 0.2 2.6 +/- 0.1 8/7/2018 8/14/2018 2.2 +/- 0.1 8/13/2018 8/20/2018 3.1 +/- 0.2 3.5 +/- 0.2 3.2+/-0.1 3.1 +/- 0.2 3.2 +/- 0.2 3.4 +/- 0.2 8/14/2018 8/21/2018 2.9 +/- 0.1 8/20/2018 8/27/2018 2.9 +/- 0.1 3.1 +/- 0.2 2.9 +/- 0.1 3.0 +/- 0.2 3.0 +/- 0.2 3.2 +/- 0.2 8/21/2018 8/28/2018 3.2 +/- 0.1 8/27/2018 9/4/2018 2.4 +/- 0.1 2.7 +/- 0.1 2.4 +/- 0.1 2.3 +/- 0.1 2.3 +/- 0.2 2.6 +/- 0.1 8/28/2018 9/5/2018 1.9 +/- 0.1 9/4/2018 9/11/2018 1.9 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 2.1 +/- 0.2 1.9 +/- 0.1 9/5/2018 9/11/2018 1.6 +/- 0.1 9/11/2018 9/17/2018 1.6 +/- 0.1 l.7+/-0.1 1.7 +/- 0.1 1.5 +/- 0.1 1.8 +/- 0.2 1.8 +/- 0.1 l.7+/-0.1 9/17/2018 9/25/2018 2.1 +/- 0.1 2.2 +/- 0.1 1.9 +/- 0.1 2.0 +/- 0.1 2.2 +/- 0.2 2.2 +/- 0.1 1.8 +/- 0.1 9/25/2018 10/2/2018 2.0 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 l.7+/-0.1 1.8 +/- 0.2 2.0 +/- 0.1 l.8+/-0.1 37

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-5 Concentration of Beta Emitters in Air Particulates - Onsite Samples (Results in units of 10-2 pCi/m3 +/- 2cr Uncertainty)

Start Date Stop Date STATION-02 STATION-03 STATION-04 STATION-OS STATION-06 STATION-07 STATION-13 Manor House East Field Training Center Creek Bridge Main Parking West Fence Substation 13 Yard Parking Lot Lot Line 10/2/2018 10/9/2018 1.9 +/- 0.1 2.1 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 2.1 +/- 0.2 2.0 +!- 0.1 1.9 +/- 0.1 10/9/2018 10/16/2018 1.9 +/- 0.1 2.1 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 2.1 +/- 0.2 2.1 +/- 0.1 1.8 +/- 0.1 10/16/2018 10/22/2018 1.8 +/- 0.1 2.0 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.2 1.8 +/- 0.1 10/16/2018 10/23/2018 1.6 +/- 0.1 10/22/2018 10/29/2018 1.4 +/- 0.1 1.5 +/- 0.1 1.3 +/- 0.1 1.4 +/- 0.1 1.4 +/- 0.1 1.5 +/- 0.1 10/23/2018 10/30/2018 1.3 +/- 0.1 10/29/2018 11/6/2018 1.6 +/- 0.1 1.8 +/- 0.1 1.6 +/- 0.1 1.6 +/- 0.1 1.6 +/- 0.1 1.8 +/- 0.1 10/30/2018 11/6/2018 1.5 +/- 0.1 11/6/2018 11/12/2018 1.7 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 1.6 +/- 0.1 1.7 +/- 0.2 1.8 +/- 0.1 11/6/2018 11/13/2018 1.6 +/- 0.1 11/12/2018 11/19/2018 1.7 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.2 1.8 +/- 0.1 11/13/2018 11/20/2018 1.8 +/- 0.1 11/19/2018 11/26/2018 2.5 +/- 0.1 2.7 +/- 0.1 2.5 +/- 0.1 2.4 +/- 0.1 2.5 +/- 0.2 2.7 +/- 0.1 11/20/2018 11/27/2018 2.4 +/- 0.1 11/26/2018 12/3/2018 1.4+/-0.1 1.5 +/- 0.1 1.4 +/- 0.1 1.5 +/- 0.1 1.6 +/- 0.1 11/27/2018 12/4/2018 1.3 +/- 0.1 12/3/2018 12/10/2018 2.0 +!- 0.1 2.2 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 2.2 +/- 0.2 2.1 +/- 0.1 12/4/2018 12/11/2018 2.l+/-0.1 12/10/2018 12/18/2018 4.0 +/- 0.2 4.2 +/- 0.2 3.8 +/- 0.1 3.8 +/- 0.2 4.1 +/- 0.2 4.3 +/- 0.2 12/11/2018 12/19/2018 3.8 +/- 0.1 12/18/2018 12/26/2018 2.2 +/- 0.1 2.4 +/- 0.1 2.1 +/- 0.1 2.1 +/- 0.1 2.3 +/- 0.2 2.3 +/~ 0.1 12/19/2018 12/27/2018 2.0 +/- 0.1 12/26/2018 1/2/2019 2.0 +/- 0.1 2.3 +/- 0.1 2.1 +/- 0.1 2.2 +/- 0.1 2.2 +/- 0.2 2.4 +/- 0.1 12/27/2018 1/2/2019 1.9 +/- 0.1 1

Sampler Malfunction/L.ow Flow. See Section 3.5 for additional information.

38

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-6 Concentration of Beta Emitters in Air Particulates - Offsite Samples (Results in units of 10-2 pCi/m3 +/- 2cr Uncertainty)

Start Date Stop Date STATION- STATION- STATION- STATION- STATION-08 1 09 101 11 12 1 Seabreeze Webster Walworth Williamson Sodus Point 1/1/2018 1/8/2018 2.8+/-0.1 2.6 +/- 0.1 2.7 +/- 0.2 2.7 +/- 0.2 2.8 +/- 0.2 1/8/2018 1/15/2018 2.4 +/- 0.1 2.4 +/- 0.1 2.7 +/- 0.1 2.6 +/- 0.1 2.6 +/- 0.1 1/15/2018 1/22/2018 4.0 +/- 0.2 3.5 +/- 0.2 4.2 +/- 0.2 3.9 +/- 0.2 4.1 +/- 0.2 1/22/2018 1/29/2018 1.6 +/- 0.1 1.8 +/- 0.1 2.0 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 1/31/2018 2/6/2018 1.9 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 2/6/2018 2/13/2018 3.0 +/- 0.1 2.5 +/- 0.1 3.3 +/- 0.2 3.1 +/- 0.1 3.0+/-0.1 2/13/2018 2/20/2018 3.l+/-0.l 2.7 +/- 0.1 3.4 +/- 0.2 2.9 +/- 0.1 3.1 +/- 0.1 2/20/2018 2/27/2018 1.8 +/- 0.1 1.8 +/- 0.1 2.1 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 2/27/2018 3/6/2018 2.8+/-0.1 2.7 +/- 0.1 2.9 +/- 0.2 2.7+/-0.1 2.6 +/- 0.1 3/6/2018 3/13/2018 1.0 +/- 0.1 1.0 +/- 0.1 0.9 +!- 0.1 0.9 +/- 0.1 0.8 +/- 0.1 3/13/2018 3/20/2018 2.4 +/- 0.1 2.3 +/- 0.1 2.6 +/- 0.1 2.3 +/- 0.1 2.3 +/- 0.1 3/20/2018 3/27/2018 1.4 +/- 0.1 1.9 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 1.9 +/- 0.1 3/27/2018 4/3/2018 2.1 +/- 0.1 2.1 +/- 0.1 2.1 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 4/3/2018 4/10/2018 1.8 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 4/9/2018 4/16/2018 1.8 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 4/17/2018 4/24/2018 2.0 +/- 0.1 1.8 +/- 0.1 2.1 +/- 0.1 1.9 +/- 0.1 2.0 +/- 0.1 4/24/2018 5/1/2018 2.0 +/- 0.1 2.0 +/- 0.1 2.2 +/- 0.1 2.1 +/- 0.1 2.0 +/- 0.1 5/1/2018 5/8/2018 2.1 +/- 0.1 2.0 +/- 0.1 2.3 +/- 0.1 2.4 +/- 0.1 2.1 +/- 0.1 5/8/2018 5/15/2018 1.7 +/- 0.1 1.8 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 1.6 +/- 0.1 5/15/2018 5/22/2018 1.5 +/- 0.1 1.6 +/- 0.1 1.6 +!- 0.1 1.5 +/- 0.1 1.5 +!- 0.1 5/22/2018 5/30/2018 2.7 +/- 0.1 2.1 +/- 0.1 2.7+/-0.1 3.1 +/- 0.2 2.4 +/- 0.1 5/30/2018 6/5/2018 1.4 +/- 0.1 2.2 +/- 0.2 1.6 +/- 0.1 1.5 +/- 0.1 1.6 +/- 0.1 6/5/2018 6/12/2018 1.4+/-0.1 1.3 +/- 0.1 1.3 +/- 0.1 1.3 +/- 0.1 1.2 +/- 0.1 6/12/2018 6/19/2018 2.0 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 2.1 +/- 0.1 1.9 +/- 0.1 6/19/2018 6/26/2018 2.0 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 1.8 +/- 0.1 1.6 +/- 0.1 6/26/2018 7/3/2018 3.5 +/- 0.2 3.1 +/- 0.2 3.1 +/- 0.2 3.1 +/- 0.2 2.9 +/- 0.1 7/3/2018 7/10/2018 2.4 +/- 0.2 2.2 +/- 0.1 2.3 +/- 0.1 2.1 +/- 0.1 2.1 +/- 0.1 7/10/2018 7/17/2018 4.5 +/- 0.3 2.9 +/- 0.1 3.2 +/- 0.2 3.0 +/- 0.2 2.8 +/- 0.1 7/17/2018 7/24/2018 1.8 +/- 0.1 1.6 +/- 0.1 1.7 +/- 0.1 1.6 +/- 0.1 1.6 +/- 0.1 7/24/2018 7/31/2018 2.2 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 7/31/2018 8/7/2018 4.7 +/- 0.2 4.2 +/- 0.2 4.6 +/- 0.2 4.1 +/- 0.2 4.0 +!- 0.2 8/7/2018 8/15/2018 2.7 +/- 0.1 2.4 +/- 0.1 2.6 +/- 0.1 2.3 +/- 0.1 2.2 +/- 0.1 8/15/2018 8/21/2018 3.7 +/- 0.2 3.2 +/- 0.2 3.5 +/- 0.2 3.0 +/- 0.2 3.1 +/- 0.2 8/21/2018 8/28/2018 4.0 +/- 0.2 3.4 +/- 0.2 3.8 +/- 0.2 3.6 +/- 0.2 3.4+/-0.1 8/28/2018 9/5/2018 2.3 +/- 0.1 2.0 +/- 0.1 2.3 +/- 0.1 2.0 +/- 0.1 2.1 +/- 0.1 9/5/2018 9/11/2018 2.0 +/- 0.2 1.6 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 9/11/2018 9/17/2018 1.7 +/- 0.1 1.7 +/- 0.1 9/11/2018 9/18/2018 1.9 +/- 0.1 1.7 +/- 0.1 1.6 +/- 0.1 9/17/2018 9/25/2018 2.3 +/- 0.1 1.9 +/- 0.1 2.1 +/- 0.1 2.1 +/- 0.1 1.9+/-0.1 9/25/2018 10/3/2018 1.9 +/- 0.1 1.8 +/- 0.1 1.9 +/- 0.1 1.7 +/- 0.1 1.7 +/- 0.1 39

January I -December 31, 2018 Docket Nos. 50-244 Table B-6 Concentration of Beta Emitters in Air Particulates - Offsite Samples (Results in units of 10-2 pCi/m3 +/- 2cr Uncertainty)

Start Date Stop Date STATION- STATION- STATION- STATION- STATION-08 1 09 101 11 12 1 Seabreeze Webster Walworth Williamson Sodus Point 10/3/2018 10/9/2018 2.2 +/- 0.2 2.1 +/- 0.1 2.2 +/- 0.2 2.3 +/- 0.2 2.1 +/- 0.1 10/9/2018 10/16/2018 2.1 +/- 0.1 1.8.+/- 0.1 2.1 +/- 0.1 2.0 +/- 0.1 1.9 +/- 0.1 10/16/2018 10/23/2018 2.0 +/- 0.1 1.7 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 10/23/2018 10/30/2018 1.4 +/- 0.1 1.3 +/- 0.1 1.3 +/- 0.1 1.4 +/- 0.1 1.4 +/- 0.1 10/30/2018 11/6/2018 1.9 +/- 0.1 1.6 +/- 0.1 1.7 +/- 0.1 1.6 +/- 0.1 1.6 +/- 0.1 11/6/2018 11/13/2018 2.1 +/- 0.1 1.7 +/- 0.1 1.9 +/- 0.1 1.8 +/- 0.1 1.8 +/- 0.1 11/13/2018 11/20/2018 1.8 +/- 0.1 1.5 +/- 0.1 1.8 +/- 0.1 1.7 +/- 0.1 1.8 +/- 0.1 11/20/2018 11/27/2018 2.3 +/- 0.1 2.1 +/- 0.1 2.1 +/- 0.1 2.2 +/- 0.1 2.3 +/- 0.1 11/27/2018 12/4/2018 1.6 +/- 0.1 1.3 +/- 0.1 1.3 +/- 0.1 11/27/2018 12/4/2018 1.5 +/- 0.1 1.4+/-0.1 12/4/2018 12/11/2018 2.5 +/- 0.1 2.4 +/- 0.1 2.6 +/- 0.1 2.4 +/- 0.1 2.3 +/- 0.1 12/11/2018 12/19/2018 4.2 +/- 0.2 3.5 +/- 0.1 3.6 +/- 0.2 3.7 +/- 0.2 3.9 +/- 0.1 12/19/2018 12/27/2018 2.3 +/- 0.1 2.0 +/- 0.1 2.2 +/- 0.1 2.0 +/- 0.1 2.2 +/- 0.1 12/27/2018 1/2/2019 2.3 +/- 0.2 2.0 +/- 0.1 2.2 +/- 0.1 2.0 +/- 0.1 2.0 +/- 0.1 1Control Location 40

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-7 Concentration of Gamma Emitters in Air Particulates (Results in units of 10*3 pCi/m3 +/- 2cr)

Location Description Sample Date Gamma Emitters (Cs-137) (I-131)

STATION-02 Manor House Yard 4/2/2018 < 1.8 < 0.002 7/2/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 North of Training STATION-03 Center Parkling Lot 4/2/2018 < 1.8 < 0.002 7/2/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 Training Center 4/2/2018 STATION-04 Parking Lot < 1.8 < 0.002 7/2/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 STATION-05 Creek Bridge 4/2/2018 < 1.8 < 0.002 7/2/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 STATION-06 Main Parking Lot 4/2/2018 < 1.8 < 0.002 7/2/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 STATION-07 West Fence Line 4/2/2018 < 1.8 < 0.002 7/2/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 STATION-08 1 Seabreeze 4/3/2018 < 1.8 < 0.002 7/3/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 STATION-09 Webster 4/3/2018 < 1.8 < 0.002 7/3/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 STATION-10 1 Walworth 4/3/2018 < 1.8 < 0.002 7/3/2018 < 1.8 < 0.002 10/2/2018 <'1.8 < 0.002 1/2/2019 < 1.8 <0.002 41

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-7 (Continued)

Concentration of Gamma Emitters in Air Particulates (Results in units of 10-3 pCi/m3 +/- 2cr)

Location Description Sample Date Gamma Emitters (Cs-137) (1-131)

STATION-11 Williamson 4/3/2018 < 1.8 < 0.002 7/3/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 STATION-12 1 Sodus Point 4/3/2018 < 1.8 < 0.002 7/3/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 STATION-13 Substation 13 4/3/2018 < 1.8 < 0.002 7/3/2018 < 1.8 < 0.002 10/2/2018 < 1.8 < 0.002 1/2/2019 < 1.8 < 0.002 1 Control Location 42

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-8 Concentration of Gamma Emitters in Vegetation Samples (Results in units of pCi/kg (wet) +/- 2cr)

Sample Code Sample Date Sample Type Gamma Emitters (Cs-137) (1-131)

CONTROL 1 Local Sites in Control Sectors 7/19/2018 Greens < 27 < 20 7/19/2018 Squash < 27 <20 9/27/2018 Apples < 27 < 20 9/27/2018 Cabbage < 27 <20 9/27/2018 Grapes < 27 <20 9/27/2018 Onion (root) < 27 <20 9/27/2018 Pears < 27 < 20 9/27/2018 Tomato < 27 <20 EAST East Sector 7/3/2018 Greens < 27 <20 7/19/2018 Squash < 27 <20 7/31/2018 Onion (root) < 27 <20 8/20/2018 Tomato < 27 < 20 9/5/2018 Cabbage < 27 < 20 9/5/2018 Pears <27 < 20 9/21/2018 Apples < 27 <20 ESE East South East Sector 7/19/2018 Greens < 27 <20 7/31/2018 Onion (root) < 27 <20 7/31/2018 Squash < 27 <20 8/20/2018 Tomato < 27 < 20 9/5/2018 Cabbage < 27 < 20 9/5/2018 Grapes < 27 < 20 SSE South South East Garden 7/3/2018 Greens < 27 <20 7/3/2018 Squash < 27 < 20 7/31/2018 Onion (root) <27 < 20 8/20/2018 Tomato < 27 < 20 9/5/2018 Pears <27 < 20 9/5/2018 Cabbage <27 < 20 9/21/2018 A22les < 27 < 20 1 Control Location 43

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-9 Concentration of Gamma Emitters (including 1-131) in Milk (Results in units of pCi/Liter +/- 2cr)

Sample Code Sample Date Gamma Emitters Cs-137 (1-131)

FARM_A (FIELD CRAFT)

ESE Supplemental 1/16/2018 < 0.4 < 0.01 2/12/2018 < 0.4 < 0.01 3/12/2018 < 0.4 < 0.01 4/9/2018 < 0.4 < 0.01 5/7/2018 < 0.4 < 0.01 6/4/2018 < 0.4 < 0.01 6/18/2018 < 0.4 < 0.01 7/2/2018 < 0.4 <0.01 7/16/2018 < 0.4 < 0.01 7/30/2018 < 0.4 < 0.01 8/13/2018 < 0.4 < 0.01 8/27/2018 < 0.4 < 0.01 9/10/2018 < 0.4 < 0.01 9/24/2018 < 0.4 < 0.01 10/8/2018 < 0.4 < 0.01 10/22/2018 < 0.4 < 0.01 11/5/2018 < 0.4 < 0.01 12/3/2018 < 0.4 < 0.01 12/17/2018 < 0.4 < 0.01 FARM_B (SCHULTZ 1)

South Sodus Control 1/16/2018 < 0.4 < 0.01 2/12/2018 < 0.4 < 0.01 3/12/2018 < 0.4 < 0.01 4/9/2018 < 0.4 < 0.01 5/7/2018 < 0.4 < 0.01 6/4/2018 < 0.4 < 0.01 6/18/2018 < 0.4 < 0.01 7/2/2018 < 0.4 < 0.01 7/16/2018 < 0.4 < 0.01 7/30/2018 < 0.4 < 0.01 8/13/2018 < 0.4 < 0.01 8/27/2018 < 0.4 < 0.01 9/10/2018 < 0.4 < 0.01 9/24/2018 < 0.4 < 0.01 10/8/2018 < 0.4 < 0.01 10/22/2018 < 0.4 < 0.01 11/5/2018 < 0.4 < 0.01 12/3/2018 < 0.4 < 0.01 12/17/2018 < 0.4 < 0.01 1

Control Location 44

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-10 Typical MDA Ranges for Gamma Spectrometry Surface Shoreline Air Water, Ground- Vegetation Selected Fish (pCi/kg) Milk Oysters Sediment Soil (pCi/kg)

Particulates Drinking water (pCi/kg)

Nuclides Wet (pCi/L) (pCi/kg) (pCi/kg) Dry (10- 2 pCi/m 3) Water (pCi/L) Wet Dry (pCi/L)

Na-22 0.03 - 0.47 3.1-5.1 9.6 - 25.7 3.6 - 5.2 5 - 7.3 5.9 - 23.6 27.1-74.8 33.9 - 90.3 11.1 - 32.3 K-40 0.16-8.09 32.2 - 58.8 69.2 - 212 41.4 - 63 40.4-61.7 70.8 - 204 300 - 749 308 - 744 91.8 - 270 Cr-51 1.31 - 11.0 27.6 - 43.3 74 - 267 29.4 - 39.8 36.9 - 52.5 25.8 - 285 477 - 1303 507 - 1486 29.2- 327 Mn-54 0.03 - 0.52 3 - 4.6 6.9 - 36.2 3.2 - 4.8 3.9 - 5.6 9.4 - 21.7 27.0- 69.9 32.7 - 82.6 8.9 - 28.2 Co-58 0.05 -0.73 3.1 - 4.7 8.6 - 38.6 3.2 - 4.8 4.1-5.7 7.4 - 30 38.6 - 96.8 38.1 - 109 8.2 - 30.5 Fe-59 0.21- 2.35 6.8 - 10.4 26.8 - 97.6 7.1 - 10.8 10.1 - 14.3 14.3 - 87.1 96.7 - 271 100 - 283 18.5 - 73.9 Co-60 0.03-0.48 3.1 - 4.7 10.2 - 33.3 3.3 - 4.9 4.5 - 6.5 10 - 21.9 26.2 - 72 31.1 - 82.5 10.1-29.8 Zn-65 0.08- 1.33 6.5 - 10.3 22.5 - 82.3 7.2 - 12 10.1 - 15.2 23.1 - 54 81 - 196 86.9 - 240 22.2- 68.2 Nb-95 0.14-1.07 3.4 - 5.3 9 - 33.5 3.6 - 5.2 4.5 - 6.2 5.3-31.1 64.7 - 155 62.1 - 183 6.9 - 38.9 Zr-95 0.10 - 1.01 5.3 - 8.2 15.1 - 42.8 5.8 - 8 7.1-9.6 10.2 - 38.9 66.7 - 166 77.4 - 192 14.2 - 53.7 Ru-106 0.30-396 25.8 - 40.9 65.3-170 28.6 - 40.8 33.6 - 47.6 42.7 - 159 226 - 560 292 - 699 77.4 - 236 Ag-1 lOm 0.03 -0.43 2.9 - 4.5 7.8 - 20.2 3.2 - 4.5 3.7 - 5.2 5.1 - 18.3 26.7 - 65.1 35.2 - 90 8.3 - 26.4 I-131 1 1.85 - 137 1.7 - 10.5 0- 466 5.1 - 8.8 0.4 - 11.1 0- 1046 294 - 4372 0 - 3833 0 - 583 Cs-134 0.03 - 0.40 2.9 - 4.4 7.7 - 30.1 3.2 -4.6 3.6 - 5.3 8.5 - 21.4 41.6 - 66.6 44.5 - 84.4 10.2 - 27.5 Cs-137 0.03-0.43 3.2 - 4.9 7.7 - 36.6 3.5 - 5 4 - 5.7 9.7 - 21.4 42 - 59.7 40.6 - 87.2 11.2 - 29.3 Ba-140 1.01 - 17.2 5.1 - 14.2 0 - 145 5.8 - 9.7 7.8 - 28 0- 199 274 - 1006 44.9 - 1198 0- 175 La-140 1.01 - 17.2 6.1 - 10.6 0 - 142.5 5.8 - 9.7 6.3 - 10.9 0 - 199 274 - 1006 45.0 - 1198 0- 174 Ce-144 0.12- 2.05 16.2 - 30.9 39.4-110 19.8 - 26.6 22.7 - 37.2 27.3 - 112 128-314 187 - 435 42 - 127 1

This MDA range for 1-131 on a charcoal cartridge is typically 3.94 x I 0-3 to 6.10 x 10-2 pCi/m3 45

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-11 Typical LLDs for Gamma Spectrometry Air Surface Water, Selected Fish pCi/kg Groundwater Oysters pCi/kg Precipitation Soil pCi/kg Vegetation Particulates Drinking Water Nuclides (wet) pCi/L (wet) pCi/L (dry) pCi/kg (wet) 10-3 pCi/m3 pCi/L Na-22 2.9 2.9 22 2.9 6 22 24 35 Cr-51 12 17 88 17 30 88 110 162 Mn-54 2.1 2.4 17 2.4 5 17 18 27 Co-58 2 2.4 16 2.4 5 16 17 25 Fe-59 4.6 5.2 37 5.2 11 37 38 60 Co-60 2.7 2.8 22 2.8 6 22 21 33 Zn-65 2.8 5.6 23 5.6 12 23 54 66 Nb-95 1.9 2.2 15 2.2 4 15 18 25 Zr-95 3.3 3.8 27 3.8 8 27 29 44 Ru-106 17 20 135 20 39 135 146 223 Ag-llOm . 1.8 2.1 14 2.1 4 14 16 25 Te-129m 20 26 149 26 50 149 180 265 I-131 1.5* 2** 11 2 4** 11 14 20 Cs-134 1.9 2.2 15 2.2 4 15 20 24 Cs-137 1.8 2.3 15 2.3 5 15 17 27 Ba-140 6.1 7.3 48 7.3 5 48 54 80 La-140 3.4 4.1 26 4.1 5 26 25 41 Ce-144 5.5 12 43 12 20 43 75 101

• The LLD for 1-131 measured on a charcoal cartridge is 2.0 xI0- pCi/m 3 3

• • The LLD for Low Level 1-131 measured in drinking water and milk is 0.3 pCi/L 46

January 1 - December 31, 2018 Docket Nos. 50-244 Table B-12 Direct Radiation (Results in Units of mR/90 days +/- lcr) 2 Onsite-Manor House Yard 12.8 +/- 0.5 12.0 +/- 0.7 13.6 +/- 0.7 13.1 +/- 0.9 3 Onsite-In field approximately 200 ft SE of station #2 13.8 +/- 0.7 12.1 +/- 0.4 14.3 +/- 0.5 13.0 +/- 0.8 4 Onsite-Training Center yard driveway circle 12.6 +/- 0.9 10.8 +/- 0.4 12.4 +/- 0.6 12.0 +/- 0.6 5 Onsite-Between creek and plant entry road 12.7 +/- 0.8 12.1 +/- 0.5 13.0 +/- 0.8 12.1 +/- 1.0 6 Onsite-SW side of plant parking lot 11.2 +/- 0.6 9.3 +/- 0.6 10.0 +/- 0.3 9.5 +/- 0.6 7 Onsite-utility pole along West plant fence 12.3 +/- 0.9 10.8 +/- 0.4 11.5 +/- 0.9 11.9 +/- 0.5 8 l Topper Drive-Irondequoit, Seabreeze Substation #51 12.4 +/- 0.8 10.5 +/- 0.5 11.4 +/- 0.8 11.4 +/- 0.7 Phillips Road-Webster, intersection with Highway 9.9 0.7 10.9 +/- 0.4 11.0 +/- 0.6 9 11.6 +/- 0.6 +/-

1. 104, Substation #74 10 I Atlantic Avenue-Walworth, Substation #230 11.3 +/- 1.1 9.7 +/- 0.6 10.5 +/- 0.3 10.6 +/- 0.4 11 W. Main Street-Williamson, Substation #207 11.4 +/- 0.5 10.7 +/- 0.4 10.6 +/- 0.6 10.5 +/- 0.5 1 12 Seaman Avenue-Sodus Point-Off Lake Road by 0.5 12 12.2 +/- 0.8 11.3 +/- 0.4 12.2 +/- 0.9 11.8 +/-

Sewer district, Substation #209 13 Onsite- South of Meteorological Tower 20.3 +/- 0.9 17.4 +/- 1.0 19.9 +/- 0.8 19.2 +/- 0.7 14 NW corner of field along Jake shore 12.6 +/- 0.6 11.9 +/- 0.5 12.9 +/- 0.8 11.3 +/- 0.6 Field access road, west of orchard, approximately 13.9 0.4 13.6 +/- 0.7 15 13.3 +/- 0.6 12.4 +/- 0.5 +/-

3000' West of plant 47

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE B-12 (Continued)

Direct Radiation (Results in Units of mR/90 days +/-10')

SW Corner of orchard, approximately 3000' West 16 12.7 +/- 0.7 12.0 +/- 0.5 13.6 +/- 0.4 13.2 +/- 0.5 of plant, approximately 200' North of Lake Road Utility pole in orchard, approximately 75" North of 17 12.6 +/- 0.6 11.2 +/- 0.5 12.7 +/- 0.7 12.6 +/- 0.5 Lake Road Approximately 30' North of NE corner of 18 11.4 +/- 0.7 9.6 +/- 0.6 10.7 +/- 0.4 10.6 +/- 0.6 Substation\13A fence On NW corner of house 100' East of plant access 0.4 19 11.1 +/- 0.6 9.2 +/- 0.5 10.2 +/- 0.5 10.3 +/-

road Approximately 150' West of Ontario Center Road 0.4 12.2 1.1 20 12.0 +/- 0.7 11.6 +/- 0.5 13.2 +/- +/-

and approximately 170' South of Lake Road North side of Lake Road, approximately 200' East 0.5 21 13.0 +/- 0.7 11.4 +/- 0.6 13.2 +/- 0.7 12.0 +/-

of Ontario Center Road 22 North side of Lake Road, SE, property owner 11.7 +/- 0.5 10.1 +/- 0.7 11.9 +/- 0.4 10.9 +/- 0.8 East property line, midway between Lake Road and 23 13.0 +/- 0.6 11.5 +/- 0.6 13.6 +/- 0.5 12.9 +/- 0.6 Lake shore 24 Lake shore near NE corner of property 13.3 +/- 1.1 10.9 +/- 0.6 13.1 +/- 0.6 12.8 +/- 0.6 1 Substation #73, Klem Road, adjacent to 897 Klem 11.0 0.4 11.0 0.6 25 11.6 +/- 0.5 9.6 +/- 0.4 +/- +/-

Road 1 0.4 10.0 9.9 +/- 0.4 10.0 +/- 0.4 26 Service Center, Plank Road, West of 250 10.6 +/- +/- 0.6 1 Atlantic Avenue at Knollwood Drive utility pole, 0.5 0.5 27 11.3 +/- 0.6 9.7 +/- 0.5 11.5 +/- 10.7 +/-

North side of road 1 Substation #193, Marion, behind Stanton Ag. 10.1 +/- 0.6 11.2 +/- 0.5 28 11.4 +/- 0.5 10.4 +/- 0.8 Service, North Main Street 48

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE B-12 (Continued)

Direct Radiation (Results in Units of mR/90 days+/- lG)

• l~)~f,l~j'fjJJijlff1;*,,I;f:;:.

1 Substation #208, Town Line Road (CR-118), 1000' 0.4 11.3 0.7 29 10.9 +/- 0.6 10.0 +/- 0.5 10.8 +/- +/-

North of Route 104 30 I District Office, Sodus, on pole, West side of bldg 10.1 +/- 0.5 8.8 +/- 0.4 9.7 +/- 0.4 10.0 +/- 0.8 Lake Road, pole 20' North of road, 500' East of Salt 31 13.5 +/- 0.6 11.7 +/- 0.5 13.5 +/- 0.6 13.2 +/- 0.8 Road Woodard Road at County Line Road, pole@ BW 11.1 0.4 32 11.5 +/- 0.6 10.3 +/- 0.6 11.1 +/- 0.5 +/-

corner County Line Road at RR tracks, pole approximately 10.9 0.7 33 10.9 +/- 0.4 9.8 +/- 0.6 10.7 +/- 0.5 +/-

100' East along tracks Lincoln Road, pole midway between Ridge Road 0.7 34 13.3 +/- 0.7 12.0 +/- 0.6 13.3 +/- 0.7 13.0 +/-

and Route 104 Transmission Right of Way, North of Clevenger 0.4 12.5 0.8 35 12.9 +/- 0.5 11.9 +/- 0.4 13.2 +/- +/-

Road on pole Substation #205, Route 104, East of Ontario Center 0.4 10.6 0.7 11.4 +/- 0.7 36 11.3 +/- 0.8 10.0 +/- +/-

Road, North side offence 37 Rail Road A venue, pole at 2048 10.4 +/- 0.6 9.8 +/- 0.6 10.0 +/- 0.7 10.4 +/- 0.5 38 Fisher Road at RR Tracks, pole East of road 12.9 +/- 0.6 11.1 +/- 0.7 12.6 +/- 0.6 12.7 +/- 0.7 Seeley Road, Pole South side 100' West of 1.0 12.3 0.5 39 12.9 +/- 0.7 11.6 +/- 0.5 12.2 +/- +/-

intersection with Stony Lonesome Road Lake Road at Stoney Lonesome Road, pole at SE 10.6 0.4 103 +/- 0.6 40 11.3 +/- 1.1 10.0 +/- 0.4 +/-

corner 63 Westside of warehouse access road 13.8 +/- 0.6 13.4 +/- 0.4 12.6 +/- 0.5 12.6 +/- 0.7 64 Westside of direct road, adjacent to orchard 14.9 +/- 0.6 11.9 +/- 0.4 15.1 +/- 0.7 14.1 +/- 0.7 1 - Control Location 49

January 1 - December 31, 2018 Docket Nos. 50-244 TABLEB-13 Groundwater Monitoring Wells Location Sample Date Tritium (pCi/1) Gamma 1 (uCi/ml)

GWOI: Warehouse Access Road (Control) 3/23/2018 <426 < 8.93E-09 6/14/2018 < 415 < 9.02E-09 9/7/2018 <447 < 8.92E-09 12/21/2018 < 399 < l.30E-08 GW03: Screenhouse West, South Well 1/12/2018 <454 2/16/2018 <455 3/23/2018 <438 < 9.12E-09 4/25/2018 <437 5/25/2018 < 416 6/15/2018 < 413 < 8.75E-09 7/29/2018 < 421 8/21/2018 < 414 9/7/2018 < 449 < 7.80E-09 10/18/2018 <438 11/28/2018 < 396 12/23/2018 <403 < 7.53E-09 GW04: Screenhouse West, North Well 3/23/2018 <445 < 8.35E-09 6/15/2018 < 416 < 7.65E-09 9/7/2018 <447 < 7.08E-09.

12/23/2018 <401 < 6.87E-09 GW05: Screenhouse East, South (15.5') 3/23/2018 <445 < 9.0IE-09 6/17/2018 <414 < 8.75E-09 9/7/2018 <453 < l.06E-08 12/23/2018 <403 < 7.22E-09 GW06: Screenhouse East, Middle (20.0') 3/23/2018 < 441 < 7.73E-09 6/15/2018 < 413 < 9.86E-09 9/7/2018 <444 < 9.69E-09 12/23/2018 <402 < 7.74E-09 GW07: Screenhouse East, North (24.0') 3/23/2018 <440 < 6.78E-09 6/15/2018 <416 < 8.60E-09 9/7/2018 <447 < 6.53E-09 12/23/2018 <402 < 6.14E-09 50

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE B-13 (Continued)

Groundwater Monitoring Wells Location SamnleDate Tritium (nCi/1) Gamma (uCi/ml)

GW08: All Volatiles Treatment Building 1/12/2018 <457 2/16/2018 < 461 3/23/2018 <444 < 7.8IE-09 4/25/2018 <431 5/25/2018 < 418 6/19/2018 < 416 < 5.88E-09 7/29/2018 < 417 8/21/2018 < 415 9/7/2018 <445 < 7.48E-09 10/18/2018 <436 11/28/2018 < 401 12/23/2018 < 399 < 6.28E-09 GWlO: Technical Support Center, South 3/23/2018 <427 < l.46E-08 6/15/2018 <413 < l.03E-08 9/7/2018 <446 < 8.6IE-09 12/23/2018 <400 < 7.46E-09 GWl 1: Southeast of Contaminated Service Building (CSB) 3/23/2018 <447 < 7.25E-09 6/15/2018 <412 < 6.95E-09 9/7/2018 <444 < 7.29E-08 12/23/2018 < 398 < 7.82E-09 GW12: West of Orchard Access Road 3/23/2018 <439 < 7.25E-09 6/14/2018 < 415 < 8.2IE-08 9/7/2018* EMPTY EMPTY 12/21/2018 < 396 < 9.41E-09 GWI3: North of Independent Spent Fuel Storage Installation (ISFSI) 3/23/2018 <443 < 9.31E-09 6/14/2018 < 415 < 7.82E-09 9/7/2018 <446 < l.07E-08 12/21/2018 < 397 < 1.26E-08 GW14: South of Canister Preparation Building 3/23/2018 <441 < 8.55E-09 6/14/2018 <420 < 9.l IE-09 9/7/2018 <447 < 8.27E-09 12/21/2018 < 396 < 9.60E-09 51

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE B-13 (Continued)

Groundwater Monitoring Wells Location Sample Date Tritium (pCi/1) Gamma (uCi/ml)

GW15: West of Manor House 3/23/2018 <438 < 9.86E-09 6/14/2018 <414 < 9.50E-09 9/7/2018 <447 < 8.72E-09 12/21/2018 < 399 < 9.94E-09 GW16: Southeast of Manor House 3/23/2018 <445 < 8.09E-09 6/14/2018 < 417 < 8.95E-09 9/7/2018 <444 < l.24E-08 12/21/2018 < 397 < 7.lOE-09 1 Gamma analysis is performed on a quarterly basis for groundwater monitoring well results. Groundwater monitoring wells GW03 and GW08 are sampled monthly due to their location being important for early detection of any tritium within the environment.

• Groundwater Monitoring Well GWl2 did not return a sample on 9/7/2018 as there was no groundwater in the monitoring well.

52

January I -December 31, 2018 Docket Nos. 50-244 APPENDIXC Quality Assurance Program Summary of Appendix C Content:

Appendix C is a summary of Exelon Industrial Services (EIS) Laboratory's quality assurance program.

Table C-1 is a compilation of results from the interlaboratory comparison program between EIS Laboratory, Environmental Resource Associates (ERA) located in Arvada, Colorado and Eckert and Ziegler Analytics Inc. located in Atlanta, Georgia. Table C-2, is a compilation of the results of the EIS laboratory's quality assurance analysis of laboratory duplicates and split samples with Teledyne Brown Engineering located in Knoxville, Tennessee. Table C-3, is a list of typical MD As achieved by Teledyne Brown for Gamma Spectroscopy.

All the EIS Laboratory's results contained in Table C-1 generally agree with the intercomparison laboratory's results within the range of +/-2 cr of each other. In addition, all the sets of intercomparison results in the table are in full agreement when they were further evaluated using the NRC Resolution Test Criteria[!]. The uncertainties for the EIS laboratory's results and Analytics' results are +/-2cr while the ERA laboratory's uncertainty is based on USEPA guidelines[2].

All the results contained in Table C-2 agree within the range of +/-2cr of each other with their respective EIS Laboratory original, replicate and/or Teledyne Brown Engineering's split laboratory samples.

The comparison of a soil sample SFS3 collected on 5/29/18 was in full agreement with the split laboratory sample positive for Cs-137 at 77.8+/-35.3 pCi/kg and 106+/-53.6 pCi/kg respectively. The replicate analysis showed no Cs 137 observed however the MDA value of l lOpCi/kg was within the acceptable range of the positive results of the original and split sample in accordance with the NRC Radiochemical Acceptance Criteria for Split Samples [1].

Other samples whose nature generally preclude sample splitting are marked "**" in the Split Analysis column. *

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

[2] National Standards for Water Proficiency Testing Studies Criteria Document, December 1998 53

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE OF CONTENTS - ANALYTICAL RESULTS Table Title Page C-1 Results of Participation in Cross Check Program ............................................................................ 55 C-2 Results of Quality Assurance Program .......................................... ,.. :.............................................. 57 C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry .................................... 64 54

January 1 - December 31, 2018 Docket Nos. 50-244 TABLEC-1 Results of Participation in Cross Check Program Reported Sample Type and Cross Check Lab Sample Date Isotope Observed Laboratory's Units Results Results 3/15/2018 Air Iodine - pCi/m3 1-131 85.2 94.3 3/15/2018 Milk-pCi/L Co-60 192 187 Mn-54 140 131 Fe-59 148 139 Co-58 118 114 Cr-51 317 326 Zn-65 264 244 1-131 106 108 Cs-134 178 180 Cs-137 176 172 Ce-141 80 77 3/15/2018 Water - pCi/L Gross Beta 272 275 4/9/2018 Water - pCi/L Co-60 70 64.3 Zn-65 95.9 86.7 1-131 24.1 24.6 Ba-133 88 91.5 Cs-137 131 123 4/9/2018 Water - pCi/L Gross Beta 64.6 73.7 6/7/2018 Air Filter - pCi/m3 Fe-59 173 155 Co-58 158 160 Cr-51 437 160 Ce-141

• 153 148 Cs-137 179 178 Cs-134 193 204 Zn-65 268 283 Mn-54 236 233 Co-60 200 204 6/7/2018 Water - pCi/L Mn-54 132 135 Fe-59 97.4 89.7 Co-58 87.9 92.9 Co-60 112 118 Zn-65 171 164 1-131 77 74.1 Cs-134 101 119 Cs-137 106 103 Ce-141 90.4 85.8 6/7/2018 Water - pCi/L Gross Beta 216 251 7/9/2018 Water - pCi/L H-3 216 204 9/13/2018 Air Filter - pCi/m3 Gross Beta 220 211 55

January 1 -December 31, 2018 Docket Nos. 50-244 TABLE C Continued Results of Participation in Cross Check Program Reported Sample Type and Cross Check Lab Sample Date Isotope Observed Laboratory's Units Results Results 9/18/2018 Air Filter - pCi/m3 Cs-134 870 921 Zn-65 696 660 Co-60 1178 1130 Cs-137 403 373 Am-241 52.3 64.1 10/5/2018 Water - pCi/L Co-60 80.2 80.7 Zn-65 318 336 Cs-134 87.9 93 Cs-137 223 235 Ba-133 13.4 16.3 1-131 28.1 27.2 12/6/2018 Air Filter - pCi/m3 Fe-59 97.9 83.4 Cr-51 226 217 Ce-141 97.9 97 Cs-137 98.8 88.2 Cs-134 112 125 Zn-65 201 193 Co-60 158 155 Co-58 85.7 86.5 Mn-54 123 112 12/6/2018 Air Iodine - pCi/m3 1-131 86.2 89.7 12/6/2018 Milk Ce-141 145 133 Mn-54 178 154 Cs-134 193 171 1-131 95.8 93.3 Co-60 215 212 Co-58 123 119 Cr-51 372 298 Fe-59 127 114 Cs-137 141 121 Zn-65 242 264 12/6/2018 Water - pCi/L Gross Beta 257 295 1

See discussion at the beginning of the Appendix 56

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE C-2 Results of Quality Assurance Program Sample Type and Type of Result2 Original Replicate Split Sample Date Location C2J Analysis Units Analysis Analysis Analysis Air Iodine - Al 1/1/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A2 1/1/2018 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - A3 1/1/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A4 1/1/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - AS 1/1/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - SFA 1 1/1/2018 1-131 pCi/m3 <MDA <MDA **

Air Filter - Al 1/16/2018 Gross Beta pCi/m 3 2.2 +/- 0.1 1.8 +/- 0.1 **

Air Filter - A2 1/16/2018 Gross Beta pCi!m 3 2.5 +/- 0.2 1.2 +/- 0.1 **

Air Filter - A3 1/16/2018 Gross Beta pCi/m3 2.1 +/- 0.1 1.8 +/- 0.1 **

Air Filter - A4 1/16/2018 Gross Beta pCi/m3 1.9 +/- 0.1 1.8 +/- 0.1 **

Air Filter - AS 1/16/2018 Gross Beta pCi/m 3 2.2 +/- 0.1 1.8 +/- 0.1 **

Air Filter - SFAl 1/16/2018 Gross Beta pCi/m 3 2.1 +/- 0.1 1.6 +/- 0.1 **

Air Filter - SFA2 1/16/2018 Gross Beta pCi/m 3 2.3 +/- 0.1 1.8 +/- 0.1 **

Air Filter - SFA3 1/16/2018 Gross Beta pCi/m3 2.2 +/- 0.1 1.7 +/- 0.1 **

Air Filter - SFA4 1/16/2018 Gross Beta pCi/m3 2.1 +/- 0.1 1.8 +/- 0.1 **

Air Iodine - A 1 1/16/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A2 1/16/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A3 1/16/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A4 1/16/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - AS 1/16/2018 1-131 pCi/m3 <MDA <MDA **

3 Air Iodine - SFAl 1/16/2018 1-131 pCi/m <MDA <MDA **

3 Air Iodine - A 1 2/6/2018 1-131 pCi/m <MDA <MDA **

Air Iodine - A2 2/6/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A3 2/6/2018 1-131 pCi/m3 <MDA <MDA **

3 Air Filter - Al 2/20/2018 Gross Beta pCi/m 2.1 +/- 0.1 2.1 +/- 0.1 **

3 Air Filter - A2 2/20/2018 Gross Beta pCi/m 1.8 +/- 0.1 2.0 +/- 0.1 **

Air Filter - A3 2/20/2018 Gross Beta pCi/m3 2.1 +/- 0.1 2.2 +/- 0.1 **'

Air Filter - A4 2/20/2018 Gross Beta pCi/m3 2.0 +/- 0.1 2.2 +/- 0.1 **

Air Filter ~ AS 2/20/2018 Gross Beta pCi/m 3 2.1 +/- 0.1 2.2 +/- 0.1 **

Air Filter - SFAl 2/20/2018 Gross Beta pCi/m 3 1.9 +/- 0.1 2.0 +/- 0.1 **

Air Filter - SFA2 2/20/2018 Gross Beta pCi/m3 1.7 +/- 0.1 1.8 +/- 0.1 **

Air Filter - SFA3 2/20/2018 Gross Beta pCi/m 3 1.9 +/- 0.1 2.0 +/- 0.1 **

Air Filter - SFA4 2/20/2018 Gross Beta pCi/m3 1.9 +/- 0.1 1.9 +/- 0.1 **

57

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE C Continued Results of Quality Assurance Program Sample Type and Type of Result2 Original Replicate Split Sample Date Analysis Analysis Location CZ) Analysis Units Analysis Air Filter - Al 3/5/2018 Gross Beta pCi/m3 2.5 +/- 0.1 2.5 +/- 0.2 **

Air Filter - A2 3/5/2018 Gross Beta pCi/m3 2.6 +/- 0.2 2.7 +/- 0.2 **

Air Filter - A3 3/5/2018 Gross Beta pCi/m3 2.9 +/- 0.2 2.9 +/- 0.2 **

Air Filter - A4 3/5/2018 Gross Beta pCi/m 3 2.6 +/- 0.2 2.7 +/- 0.2 **

Air Filter - A5 3/5/2018 Gross Beta pCi/m 3 2.6 +/- 0.1 2.6 +/- 0.2 **

Air Filter - SFAl 3/5/2018 Gross Beta pCi/m3 2.4 +/- 0.1 2.4 +/- 0.1 **

Air Filter - SFA2 3/5/2018 Gross Beta pCi/m3 2.5 +/- 0.1 2.6 +/- 0.1 **

Air Filter - SFA3 3/5/2018 Gross Beta pCi/m 3 2.5 +/- 0.1 2.5 +/- 0.1 **

Air Filter - SFA4 3/5/2018 Gross Beta pCi/m 3 2.3 +/- 0.1 2.4 +/- 0.1 **

Air Iodine - A I 3/13/2018 I-131 pCi/m3 <MDA <MDA **

Air Iodine - A2 3/13/2018 I-131 pCi/m3 <MDA <MDA **

Air Iodine - A3 3/13/2018 I-131 pCi/m 3

<MDA <MDA **

Air Iodine - A4 3/13/2018 I-131 pCi/m 3

<MDA <MDA **

Air Iodine - A5 3/13/2018 I-131 pCi/m 3

<MDA <MDA **

Air Iodine - SFAI 3/13/2018 I-131 pCi/m3 <MDA <MDA **

Air Filter - Al 4/3/2018 Gamma pCi/m3 <MDA <MDA <MDA Air Filter - A2 4/3/2018 Gamma pCi/m3 <MDA <MDA <MDA 3 <MDA <MDA <MDA Air Filter - A3 4/3/2018 Gamma pCi/m 3 <MDA <MDA Air Filter - A4 4/3/2018 Gamma pCi/m <MDA Air Filter - A5 4/3/2018 Gamma pCi/m3 <MDA <MDA <MDA Air Filter - SFAI 4/3/2018 Gamma pCi/m3 <MDA <MDA <MDA 3 <MDA <MDA Air Filter - SFA2 4/3/2018 Gamma pCi/m <MDA 3 <MDA <MDA <MDA Air Filter - SFA3 4/3/2018 Gamma pCi/m Air Filter - SFA4 4/3/2018 Gamma pCi/m3 <MDA <MDA <MDA Air Filter - A I 4/9/2018 Gross Beta pCi/m3 2.0 +/- 0.1 2.0 +/- 0.1 **

Air Filter - A2 4/9/2018 Gross Beta pCi/m 3 2.1 +/- 0.1 1.9 +/- 0.1 **

Air Filter - A3 4/9/2018 Gross Beta pCi/m 3 1.9 +/- 0.1 2.0 +/- 0.1 **

Air Filter - A4 4/9/2018 Gross Beta pCi/m3 2.0 +/- 0.1 2.0 +/- 0.1 **

Air Filter - A5 4/9/2018 Gross Beta pCi/m3 2.1 +/- 0.1 2.1 +/- 0.1 **

Air Filter - SFAI 4/9/2018 Gross Beta pCi/m3 2.2 +/- 0.2 2.1 +/- 0.2 **

Air Filter - SFA2 4/9/2018 Gross Beta pCi/m 3 2.2 +/- 0.1 2.0 +/- 0.1 **

Air Filter - SFA3 4/9/2018 Gross Beta pCi/m 3 2.1 +/- 0.1 2.0 +/- 0.1 **

Air Filter - SFA4 4/9/2018 Gross Beta pCi/m 3 1.9 +/- 0.1 1.9 +/- 0.1 **

58

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE C Continued Results of Quality Assurance Program Sample Type and Type of Result2 Original Replicate Split Sample Date Analysis Analysis Location <2l Analysis Units Analysis Air Iodine - A 1 4/17/2018 I-131 pCi/m3 <MDA <MDA **

Air Iodine - A2 4/17/2018 I-131 pCi/m3 <MDA <MDA **

Air Iodine - A3 4/17/2018 I-131 pCi/m3 <MDA <MDA **

Air Iodine - A4 4/17/2018 I-131 pCi/m 3

<MDA <MDA **

Air. Iodine - AS 4/17/2018 I-131 pCi/m 3

<MDA <MDA* **

Air Iodine - SFA 1 4/17/2018 I-131 pCi/m 3

<MDA <MDA **

Air Filter - A 1 5/8/2018 Gross Beta pCi/m3 2.3 +/- 0.1 2.3 +/- 0.1 **

Air Filter - A2 5/8/2018 Gross Beta pCi/m3 2.1 +/- 0.1 2.1 +/- 0.1 **

Air Filter - A3 5/8/2018 Gross Beta pCi/m 3 2.3 +/- 0.1 2.2 +/- 0.1 **

Air Filter - A4 5/8/2018 Gross Beta pCi/m 3 2.2 +/- 0.1 2.1 +/- 0.1 **

Air Filter - AS 5/8/2018 Gross Beta pCi/m3 . 2.3 +/- 0.1 2.3 +/- 0.1 **

Air Filter - SFAl 5/8/2018 Gross Beta pCi/m3 2.5 +/- 0.1 2.5 +/- 0.1 **

Air Filter - SFA2 5/8/2018 Gross Beta pCi/m3 2.4 +/- 0.1 2.4 +/- 0.1 **

Air Filter - SFA3 5/8/2018 Gross Beta pCi/m 3 2.3 +/- 0.1 2.3 +/- 0.1 **

Air Filter - SFA4 5/8/2018 Gross Beta pCi/m 3 2.2 +/- 0.1 2.3 +/- 0.1 **

Air Iodine - A 1 5/14/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A2 5/14/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A3 5/14/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A4 5/14/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - AS 5/14/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - SFA 1 5/14/2018 1-131 pCi/m3 <MDA <MDA **

Misc ground 5/29/2018 Gamma pCi/kg <MDA <MDA <MDA coverage - SFB 1 Misc ground 5/29/2018 Gamma pCi/kg <MDA <MDA <MDA coverage - SFB3 Soil - SFSl 5/29/2018 Gamma pCi/kg <MDA <MDA <MDA 77.8 +/- 106.0 +/-

Soil - SFS3 1 5/29/2018 Cs-137 pCi/kg **

35.3 53.6 Air Filter - Al 6/11/2018 Gross Beta pCi/m3 1.5 +/- 0.1 1.6 +/- 0.1 **

Air Filter - A2 6/11/2018 Gross Beta pCi/m3 1.4 +/- 0.1 1.4 +/- 0.1 **

Air Filter - A3 6/11/2018 Gross Beta pCi/m3 1.5 +/- 0.1 1.6 +/- 0.1 **

Air Filter - A4 6/11/2018 Gross Beta pCi/m 3 1.4 +/- 0.1 1.4 +/- 0.1 **

Air Filter - AS 6/11/2018 Gross Beta pCi/m 3 1.6 +/- 0.1 1.5 +/- 0.1 **

59

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE C Continued Results of Quality Assurance Program Sample Type and Type of Original Replicate Split Sample Date Result Units Location <2J Analysis Analysis Analysis Analysis Air Filter - SFAl 6/11/2018 Gross Beta pCi/m3 1.4 +/- 0.1 1.5 +/- 0.1 **

Air Filter - SFA2 6/11/2018 Gross Beta pCi/m3 1.5 +/- 0.1 1.4 +/- 0.1 **

Air Filter - SFA3 6/11/2018 Gross Beta pCi/m 3 1.4 +/- 0.1 0.5 +/- 0.1 **

Air Filter - SFA4 6/11/2018 Gross Beta pCi/m 3 1.5 +/- 0.1 1.5 +/- 0.1 **

Bottom sediment -

6/13/2018 Gamma pCi/kg <MDA <MDA <MDA WBS2 Bottom sediment -

6/13/2018 Gamma pCi/kg <MDA <MDA <MDA WBS4 Cabbage - 1B 11 6/19/2018 Gamma pCi/kg <MDA <MDA <MDA Cabbage - IB5 6/19/2018 Gamma pCi/kg <MDA <MDA <MDA Cabbage - IB8 6/19/2018 Gamma pCi/kg <MDA <MDA <MDA Bay Water - WAI 6/29/2018 Gamma pCi/L <MDA <MDA <MDA Bay Water - WA2 6/29/2018 Gamma pCi/L <MDA <MDA <MDA 3 <MDA <MDA Air Filter - Al 7/3/2018 Gamma pCi/m <MDA 3 <MDA <MDA Air Filter - A2 7/3/2018 Gamma pCi/m <MDA 3 <MDA Air Filter - A3 7/3/2018 Gamma pCi/m <MDA <MDA Air Filter - A4 7/3/2018 Gamma pCi/m3 <MDA <MDA <MDA Air Filter - A5 7/3/2018 Gamma pCi/m3 <MDA <MDA <MDA 3 <MDA Air Filter - SFAl 7/3/2018 Gamma pCi/m <MDA <MDA 3 <MDA <MDA Air Filter - SFA2 7/3/2018 Gamma pCi/m <MDA 3 <MDA Air Filter - SFA3 7/3/2018 Gamma pCi/m <MDA <MDA Air Filter - SFA4 7/3/2018 Gamma pCi/m3 <MDA <MDA <MDA Air Iodine - Al 7/3/2018 I-131 pCi/m3 <MDA <MDA **

Air Iodine - A2 7/3/2018 I-131 pCi/m 3 <MDA <MDA **

3 Air Iodine - A3 7/3/2018 I-131 pCi/m <MDA <MDA **

Air Iodine - A4 7/3/2018 I-131 pCi/m3 <MDA <MDA **

3 Air Iodine - A5 7/3/2018 I-131 pCi/m <MDA <MDA **

Air Iodine - SFAl

• 7/3/2018 I-131 pCi/m 3 <MDA <MDA **

Air Filter - Al 7/9/2018 Gross Beta pCi/m 3 1.5 +/- 0.1 1.5 +/- 0.1 **

Air Filter - A2 7/9/2018 Gross Beta pCi/m3 1.5 +/- 0.1 1.4 +/- 0.1 **

Air Filter - A3 7/9/2018 Gross Beta pCi/m3 1.5 +/- 0.1 1.5 +/- 0.1 **

Air Filter - A4 7/9/2018 Gross Beta pCi/m3 1.3 +/- 0.1 1.3 +/- 0.1 **

Air Filter - A5 7/9/2018 Gross Beta pCi/m 3 1.5 +/- 0.1 1.5 +/- 0.1 **

60

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE C Continued Results of Quality Assurance Program Sample Type and Type of Original Replicate Split Sample Date Result Units Analysis Location (2l Analysis Analysis Analysis Air Filter - SFAI 7/9/2018 Gross Beta pCi/m3 1.3 +/- 0.1 1.3 +/- 0.1 **

Air Filter - SFA2 7/9/2018 Gross Beta pCi/m 3 1.6 +/- 0.1 1.6 +/- 0.1 **

Air Filter - SFA3 7/9/2018 Gross Beta pCi/m 3 1.3 +/- 0.1 1.4 +/- 0.1 **

Air Filter - SFA4 7/9/2018 Gross Beta pCi/m 3 1.2 +/- 0.1 l.4+/-0.1 **

Cabbage - IB 12 7/17/2018 Gamma pCi/kg <MDA <MDA <MDA Cabbage - IB4 7/17/2018 Gamma pCi/kg <MDA <MDA <MDA Kale - IBIO 7/17/2018 Gamma pCi/kg <MDA <MDA <MDA Air Iodine - A I 7/30/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A2 7/30/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A3 7/30/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A4 7/30/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A5 7/30/2018 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - SFAI 7/30/2018 1-131 pCi/m3 <MDA <MDA **

Air Filter - Al 8/6/2018 Gross Beta pCi/m3 1.4 +/- 0.1 1.3 +/- 0.1 **

Air Filter - A2 8/6/2018 Gross Beta pCi/m3 1.3 +/- 0.1 1.3 +/- 0.1 **

Air Filter - A3 8/6/2018 Gross Beta pCi/m 3 1.2 +/- 0.1 1.3 +/- 0.1 **

Air Filter - A4 8/6/2018 Gross Beta pCi/m 3 1.2 +/- 0.1 1.1 +/- 0.1 **

Air Filter - A5 8/6/2018 Gross Beta pCi/m3 1.4 +/- 0.1 1.2 +/- 0.1 **

Air Filter - SF Al 8/6/2018 Gross Beta pCi/m3 1.3 +/- 0.1 1.2 +/- 0.1 **

Air Filter - SFA2 8/6/2018 Gross Beta pCi/m3 1.3 +/- 0.1 1.3 +/- 0.1 **

Air Filter - SFA3 8/6/2018 Gross Beta pCi/m 3 1.3 +/- 0.1 1.3 +/- 0.1 **

3 Air Filter - SFA4 8/6/2018 Gross Beta pCi/m 1.3 +/- 0.1 1.2 +/- 0.1 **

Oysters - IA3 8/15/2018 Gamma pCi/kg <MDA <MDA <MDA Oysters - IA6 8/15/2018 Gamma pCi/kg <MDA <MDA <MDA Perch - IA4 8/15/2018 Gamma pCi/kg <MDA <MDA <MDA Striped bass - IA5 8/15/2018 Gamma pCi/kg <MDA <MDA <MDA Air Iodine - Al 8/27/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A2 8/27/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A3 8/27/2018 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - A4 8/27/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A5 8/27/2018 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - SFAl 8/27/2018 1-131 pCi/m3 <MDA <MDA **

61

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE C Continued Results of Quality Assurance Program Sample Type and Type of Original Replicate Split Sample Date Result Units Analysis Location (2) Analysis Analysis_ Analysis Air Filter - Al 9/11/2018 Gross Beta pCi/m3 2.5 +/- 0.2 2.4 +/- 0.2 **

Air Filter - A2 9/11/2018 Gross Beta pCi/m 3 1.6 +/- 0.1 1.5 +/- 0.1 **

Air Filter - A3 9/11/2018 Gross Beta pCi/m 3 1.7+/-0.1 1.6 +/- 0.1 **

Air Filter - A4 9/11/2018 Gross Beta pCi/m 3 1.4 +/- 0.1 1.4 +/- 0.1 **

Air Filter - AS 9/11/2018 Gross Beta pCi/m3 1.4 +/- 0.1 1.4 +/- 0.1 **

Air Filter - SFAl 9/11/2018 Gross Beta pCi/m3 1.5 +/- 0.1 1.4 +/- 0.1 **

Air Filter - SFA2 9/11/2018 Gross Beta pCi/m 3 1.7 +/- 0.1 1.6 +/- 0.1 **

3 1.4 +/- 0.1 **

Air Filter - SFA3 9/11/2018 Gross Beta pCi/m 1.4 +/- 0.1 Air Filter - SFA4 9/11/2018 Gross Beta pCi/m3 1.4 +/- 0.1 1.4+/-0.1 **

Oysters - IA3 10/3/2018 Gamma pCi/kg <MDA <MDA <MDA Oysters - IA6 10/3/2018 Gamma pCi/kg <MDA <MDA <MDA Air Filter - Al 10/8/2018 Gross Beta pCi/m 3 2.9 +/- 0.1 2.8 +/- 0.1 **

Air Filter - A2 10/8/2018 Gross Beta pCi/m 3 2.8 +/- 0.1 2.6 +/- 0.1 **

Air Filter - A3 10/8/2018 Gross Beta pCi/m3 3.0 +!- 0.1 2.9 +/- 0.1 **

Air Filter - A4 10/8/2018 Gross Beta pCi/m3 2.6 +/- 0.1 2.6 +/- 0.1 **

Air Filter - AS 10/8/2018 Gross Beta pCi/m 3 2.9 +/- 0.1 2.9 +/- 0.1 **

3 2.4 +/- 0.1 **

Air Filter - SFAl 10/8/2018 Gross Beta pCi/m 2.6 +/- 0.1 3 2.6 +/- 0.1 **

Air Filter - SFA2 10/8/2018 Gross Beta pCi/m 2.7 +/- 0.1 Air Filter - SFA3 10/8/2018 Gross Beta pCi/m3 2.6 +/- 0.1 2.5 +/- 0.1 **

Air Filter - SFA4 10/8/2018 Gross Beta pCi/m3 2.6 +/- 0.1 2.5 +/- 0.1 **

Shoreline sediment -

10/11/2018 Gamma pCi/kg <MDA <MDA <MDA WBl Air Filter - Al 11/5/2018 Gross Beta pCi/m~ 1.7 +/- 0.1 1.5 +/- 0.1 **

Air Filter - A2 11/5/2018 Gross Beta pCi/m3 1.6 +/- 0.1 1.5 +/- 0.1 **

Air Filter - A3 11/5/2018 Gross Beta pCi/m3 1.7 +/- 0.1 1.6 +/- 0.1 **

3 1.5 +/- 0.1 1.5 +/- 0.1 **

Air Filter - A4 11/5/2018 Gross Beta pCi/m 3 1.6 +/- 0.1 1.5 +/- 0.1 **

Air Filter - AS 11/5/2018 Gross Beta pCi/m Air Filter - SFAl 11/5/2018 Gross Beta pCi/m 3 1.5 +/- 0.1 1.5 +/- 0.1 **

Air Filter - SFA2 11/5/2018 Gross Beta pCi/m3 1.7 +/- 0.1 1.6 +/- 0.1 **

Air Filter - SFA3 11/5/2018 Gross Beta pCi/m3 1.5 +/- 0.1 1.6 +/- 0.1 **

Air Filter - SFA4 11/5/2018 Gross Beta pCi/m 3 l.7+/-0.1 1.7 +/- 0.1 **

62

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE C Continued Results of Quality Assurance Program Sample Type and Type of O,;iginal Replicate Split Sample Date Result Units Analysis Location c2i Analysis Analysis Analysis Air Iodine - A 1 11/12/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A 1 11/12/2018 1-131 pCi/m 3 <MDA <MDA **

Air Iodine - A2 11/12/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A2 11/12/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A3 11/12/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - A3 11/12/2018 I-131 pCi/m3 <MDA <MDA **

Air Iodine - A4 11/12/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - A4 11/12/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - AS 11/12/2018 I-131 pCi/m3 <MDA <MDA **

Air Iodine - AS 11/12/2018 1-131 pCi/m3 <MDA <MDA **

Air Iodine - SFAI 11/12/2018 1-131 pCi/m 3

<MDA <MDA **

Air Iodine - SFAI 11/12/2018 I-131 pCi/m 3

<MDA <MDA **

Bay Water - W Al 11/29/2018 Gamma pCi/L <MDA <MDA **

Bay Water - WA2 11/29/2018 Gamma pCi/L <MDA <MDA <MDA Air Filter - Al 12/10/2018 Gross Beta pCi/m3 1.7 +/- 0.1 1.8 +/- 0.1 **

Air Filter - A2 12/10/2018 Gross Beta pCi/m 3 1.7 +/- 0.1 1.6 +/- 0.1 **

Air Filter - A3 12/10/2018 Gross Beta pCi/m 3 1.8 +/- 0.1 1.6 +/- 0.1 **

Air Filter - A4 12/10/2018 Gross Beta pCi/m 3 1.7 +/- 0.1 1.7 +/- 0.1 **

Air Filter - AS 12/10/2018 Gross Beta pCi/m3 1.7 +/- 0.1 1.7 +/- 0.1 **

Air Filter - SFA 1 12/10/2018 Gross Beta pCi/m3 1.6 +/- 0.1 1.6 +/- 0.1 **

Air Filter - SFA2 12/10/2018 Gross Beta pCi/m 3 1.8 +/- 0.1 1.7 +/- 0.1 **

Air Filter - SFA3 12/10/2018 Gross Beta pCi/m 3 1.7 +/- 0.1 1.7 +/- 0.1 **

Air Filter - SFA4 12/10/2018 Gross Beta pCi/m3 1.6 +/- 0.1 1.5 +/- 0.1 **

1 See discussion at the beginning of the Appendix.

2 Results reported for Air samples 1-131 and Beta are in 10-2 pCi/m3. All Vegetation and Soil, Oysters and Fish are in pCi/Kg. All water and milk are in pCi/L, TLD are in mR/90 Day

• • The nature of these samples precluded splitting them with an independent laboratory.

63

January 1 - December 31, 2018 Docket Nos. 50-244 Table C-3 Teledyne Brown Engineering's Typical MDAs for Gamma Spectrometry Selected Bay Water Fish Shellfish Sediment Vegetation Particulates 10-Nuclides pCi/1 pCi/kg pCi/kg pCi/kg pCi/kg 3 pCi/m3 H-3 175 Na-22 1 8 3 12 6 5 Cr-51 12 105 4 104 50 63 Mn-54 1 9 3 12 5 4 Co-58 9 4 9 4 5 Fe-59 3 28 9 24 10 12 Co-60 1 9 4 12 5 6 Zn-65 2 20 8 25 10 9 Nb-95 12 7 14 6 9 Zr-95 2 18 8 20 9 9 Ru-106 9 75 30 90 41 40 Ag-llOm 1 10 10 10 5 4 Te-129m 16 131 60 162 79 95 I-131 4 65 30 35 22 74 Cs-134 8 4 10 5 4 Cs-137 9 4 10 5 4 BaLa-140 3 32 15 25 14 36 Ce-144 7 40 16 54 26 18 64

January 1 - December 31, 2018 Docket Nos. 50-244 APPENDIXD Land Use Survey Summary of Appendix D Content:

Appendix D contains the results of a Land Use Survey conducted around R.E. Ginna Nuclear Power Plant during this operating period. A discussion of the results is included in Section 3.4 of this report.

65

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE OF CONTENTS - LAND USE SURVEY Table Title Page D-1 Land Use Survey Distances .................................................................................................. 67 66

January 1 - December 31, 2018 Docket Nos. 50-244 TABLED-1 Land Use Survey Distances Sector Distance to Distance to Nearest Garden Distance to Milk Producing (Direction in Nearest (Latitude N, Longitude W) Animals Degrees) Residence (Latitude N, Longitude W) 610m E

1170 m Onsite Supplemental Garden NIA (94)

(43.27727, 77.30140) 430m ESE (111) 1660m Onsite Garden NIA (43.27627, 77.30389)

ESE 8240m (119) 840m NIA (43.24196, 77.21978) 660m SSE (145) 610m Onsite Supplemental Garden NIA (43.27278, 77.30413) s 1500m NIA NIA SSW 620m NIA NIA SW 740m NIA NIA WSW 1470m NIA NIA w 2420m NIA NIA 67

January 1 - December 31, 2018 Docket Nos. 50-244 Discussion A Land Use Survey was conducted to identify, within five miles, the location of the nearest milk animal, the nearest residence, and the nearest garden greater than 500 square feet in each of the nine sectors over land. A detailed description of the Land Use Survey is given in a separate attachment. The position of the nearest residence and garden and animals producing milk for human consumption in each sector out to five miles is given in the above Table D-1.

Changes from Previous Years:

The nearest residence remains in the SSE sector, approximately 610 meters from the reactor.

Single-family home/ senior housing subdivision/ d~velopment construction was observed near the plant on LaFrank Drive (Ontario), and South of Route 104 near Tops Plaza (Ontario).

Lake Front Estates and Summer Lake subdivisions continue to expand along with the southeast corner of Lake Road and Slocum Road.

Other single-family home construction was observed sporadically within 5-miles of the plant.

A new 120-acre commercial hydroponic farm continues construction on the east-end of Timothy Lane (North of Route 104). During 2018, the facility did not become operational.

Commercial fishing information was collected from the New York State Department of Environmental Conservation (NYSDEC) which shows activity only in the Eastern basin of Lake Ontario. Commercial fishing operations have not changed in the last five-years and no commercial fishing takes place within 5-miles of Ginna.

No new agricultural land use was identified.

No new food producing facilities were identified as the commercial hydroponic farm is not currently growing produce.

No new milk producing animals were identified.

Milk Animal Locations Schultz Farm - 450 Boston Road, Ontario NY Field Craft Farm (supplemental sample)- 6747 Salmon Creek Road, Williamson NY No new milk producing animals were identified in the 2018 survey.

68

January 1 - December 31, 2018

• Docket Nos. 50-244 APPENDIXE Interpretations and Graphical Representations Summary of Appendix E Content:

To better illustrate that the continued operation of the RE. Ginna Nuclear Power Plant (Ginna) has no statistically significant impact on the surrounding environment, Appendix E contains the results of the last seven years of Radiological Environment Monitoring Program (REMP) data.

Where applicable (when analytical results produced a measured numerical value), trends have been produced to show values that have been observed in the various environs surrounding Ginna. A discussion of these results will accompany each series of trends to enhance understanding of the REMP program.

69

January 1 - December 31, 2018 Docket Nos. 50-244 TABLE OF CONTENTS -

INTERPRETATIONS AND GRAPHICAL REPRESENTATIONS Table Title Page E-1 E-Series 1, Table B-1 (Gross Beta Values for Surface and Drinking Water) .................... 71 E-2 E-Series 2, Table B-5 / Table B-6 (Beta in Air Particulates) .................................. 75 E-3 E-Series 3, Table B-12 (Direct Radiation) ....................................................... 80 E-4 E-Series 4, Table B-13 (Tritium in Groundwater) .............................................. 93 70

January 1 - December 31, 2018 Docket Nos. 50-244 E-Series 1 Table B-1 (Gross Beta Values for Surface and Drinking Water)

Ginna's Offsite Dose Calculation Manual (ODCM) is written in accordance with specifications contained within 10 CFR 20 and the Branch Technical Position document published by the NRC in 1979. This document specifies Gross Beta in Surface Water samples to be detected to a Lower Limit of Detection (LLD) of 4 pCi/1. Since that time, detection capabilities have improved which allow values to be measured lower than the required 4 pCi/1.

The trends below include the Gross Beta averages (from 2012-2018) for Ginna's surface water samples (Circ- In, Circ - Out, MCWA, Deer Creek, Mill Creek, OWD, and Webster). An elevated Gross Beta result inconsistent with the trend would indicate radionuclides in the sample which would require further analysis. From 2012 through 2018, no such results have been received from Ginna' s REMP program.

Results from Deer Creek (indicator) and Mill Creek (control) are higher than other surface water samples within the REMP program due to naturally occurring radiological daughter products within the soil being introduced into the samples. It is worth noting that these naturally occurring radiological daughter products would exist in this environ at these same levels even if Ginna had never been built. These samples are obtained to evaluate the potential for public exposure due to the surface water (Mill Creek, Circ-In, Circ-Out, and Deer Creek) and drinking water pathway (Monroe County Water Authority, Webster Water, and Ontario Water District). These locations are chosen as a member of the public is most likely to encounter water which has left Ginna property via these sample streams.

Trend "B-1 Control and Indicator Averages (2012-2018) shows the relationship between the control samples (Mill Creek, MCWA, and Webster Water) and the indicator samples (Circ-In, Circ-Out, Deer Creek, and OWD). This trend illustrates that there is no statistically significant difference between control and indicator samples for Gross Beta in Surface water from 2012-2018.

71

January 1 - December 31 , 2018 Docket Nos. 50-244 B-1 Control and Indicator Averages (2012-2018)

• Co ntro l

• Indica tor 5.00 4.50

• 4.00 *

• 3.50 S 3.00

• uQ.

~

11) 2.50 co Ill *

• Ill 0

~ 2.00 1.50 1.00 0.50 0.00 2012 2013 2014 2015 20 16 2017 2018 Ye ar 72

January 1 - December 31, 2018 Docket Nos. 50-244 Circ - In Gross Beta (2012 - 2018) Circ - Out Gross Beta (2012-2018}

7.00 7.00 6.00 6.00

.::::. 5.00 .::::. 5.00 u Q.

uQ.

';; 4.00 Qj

';; 4.00 Qj

~ 3.00 ~ 3.00

~

VI 0

VI 0

2.00 *

• * ~ 2.00 * * *

• 1.00 1.00 0.00 0.00 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Deer Creek Gross Beta {2012 - 2018} OWD Gross Beta {2012-2018) 7.00 7.00 6.00 6.00

.::::. 5.00

• *  :::::.. 5.00 uQ.

';; 4.00 uQ.

Qj * * ';; 4.00 Qj

~VI 3.00 ~ 3.00 VI 0

...0 *

• c, 2.00 c, 2.00 1.00 1.00 0.00 0.00 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year 73

January l -December 31, 2018 Docket Nos. 50-244 MCWA Gross Beta {2012-2018) Mill Creek Gross Beta (2012-2018) 7.00 7.00 6.00 6.00 S 5.00 u

S 5.00 u

0.

• 0.

-; 4.00 e ai

-; 4.00 QI

~ 3.00 ~ 3.00

"'0 * "'

0

• l5 2.00 * *

• l5 2.00 1.00 1.00 0.00 0.00 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Webster Gross Beta {2012-2018) 7 6

1 0

2012 2013 2014 2015 2016 2017 2018 Year 74

January 1 - December 31, 2018 Docket Nos. 50-244 E-Series 2 Table B-5 / Table B-6 (Beta in Air Particulates)

Ginna' s Offsite Dose Calculation Manual (ODCM) is written in accordance with specifications contained within 10 CFR 20 and the Branch Technical Position document published by the NRC in 1979. This document specifies Gross Beta in Air Particulate samples to be detected to a Lower Limit of Detection (LLD) of 1.0 X 10-2 pCi/m 3 . Accordingly, analyses performed as part of the REMP at Ginna satisfy this requirement.

The trends below include the Gross Beta averages (from 2012-2018) for Ginna's air particulate samples (Station-02 through Station-13). An elevated Gross Beta result inconsistent with the trend would indicate radionuclides in the sample which would require further analysis. From 2012 through 2018, no such results have been received from Ginna's REMP program.

Sampling locations (Station-02 through Station-13) are noted below, and their classification as either a control or an indicator. These locations were selected to show areas where breathable air, which has the potential to be in communication with air released from Ginna, could lead to public exposure. Some locations (such as Station-08, Seabreeze and Station-12, Sodus Point) are sampled due to recreational activities in the area and their associated sensitivity.

Station Manor House Yard, Ginna Property (Indicator)

Station North of Training Center Parking Lot, Ginna Property (Indicator)

Station East of Training Center Parking Lot, Ginna Property (Indicator)

Station-OS - Bridge Near Deer Creek, Ginna Property (Indicator)

Station Southwest of Plant Parking Lot, Ginna Property (Indicator)

Station Utility Pole West of Parking Lot, Ginna Property (Indicator)

Station Seabreeze (Control)

Station Webster (Indicator)

Station-IO- Walworth (Control)

Station-I I - Williamson (Indicator)

Station Sodus Point (Control)

Station Substation 13 (Indicator)

Trend "B-5 I B-6 Control and Indicator Averages (2012 - 2018) shows the relationship between the control samples (Station-08 , Station-IO, and Station-12) and the indicator samples (Station-02, Station-03, Station-04, Station-OS, Station-06, Station-07, Station-09, and Station-11). This trend illustrates that there is no statistically significant difference between control and indicator samples for Gross Beta in Air Particulates from 2012-2018.

75

January 1 - December 31, 2018 Docket Nos. 50-244 B- 5 / B-6 Control and Indicator Averages (2012-2018)

• Control

• Indicator 5.0 4.5 4.0 3.5 M

E 3.0 uC.

N 6 2.5 e RI t 2.0 al 1.5 1.0 0.5 0.0 2012 2013 2014 2015 2016 2017 2018 Year 76

January 1 - December 31, 2018 Docket Nos. 50-244 Station -02 Beta (2012 - 2018) Station-03 Beta {2012-2018) 5.0 5.0 4.5 4.5 4.0 4.0

1. 3.5 t 3.5

~ 3.0 ~ 3.0

~ 2.5 e * * * ~ 2.5

.!: 2.0 11)

• * * .!: 2.0 11) t co 1.5 t 1.5 co 1.0 1.0 0.5 0.5 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Station-04 Beta (2012 -2018) Station-OS Beta (2012-2018) 5.0 5.0 4.5 4.5 4.0 4.0 t 3.5 t 3.5

~ 3.0 ~ 3.0

'b ~ 2.5 e

.... 2.5 *

.!: 2.0 t

11) 1.5

.!: 2.0 11) t 1.5 co co 1.0 1.0 0.5 0.5 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year 77

January 1 - December 31, 2018 Docket Nos. 50-244 Station-06 Beta (2012 -2018) Station -07 Beta (2012-2018) 5.0 5.0 4.5 4.5 4.0 4.0

"'E 3.5 b

~ 3.0 2.5 *

"'E 3.5 b

~ 3.0 2.5

.!: 2.0 ro

• * * * * * .!: 2.0 ro j 1.5 j 1.5 1.0 1.0 0.5 0.5 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Yea r Year Station -08 Beta (2012 - 2018) Station-09 Beta (2012-2018) 5.0 5.0 4.5 4.5 4.0 4.0

"'E 3.5 s

~ 3.0 -S

"'E 3.5

~ 3.0 2.5 *

• * * * *

• 2.5 e

.!: 2.0 ro

.!: 2.0 ro j 1.5 j 1.5 1.0 1.0 0.5 0.5 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year 78

January 1 -December 31 , 2018 Docket Nos. 50-244 Station-10 Beta (2012-2018) Station-11 Beta (2012-2018) 5.0 5.0 4.5 4.5 4.0 4.0

"'E 3.5 "'E 3.5

~ 3.0 b~

• =Ill 2.5 2.0

~ 3.0

'"~/ 2 .::,- *

• =

j Ill 2.0 j 1.5 1.5 1.0 1.0 0.5 0.5 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Station-12 Beta {2012-2018} Station-13 Beta (2012-2018) 5.0 5.0 4.5 4.5 4.0 4.0 1_ 3.5 1_ 3.5

~ 3.0 ~ 3.0 b 2.5 b 2.5 e

• = 2.0 * * * * * *

~

~

Ill

• * * *= 2.0 Ill a:i 1.5 a:i 1.5 cc cc 1.0 1.0 0.5 0.5 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 20 15 2016 2017 2018 Year Year 79

January 1 - December 31, 2018 Docket Nos. 50-244 E-Series 3 Table B-12 (Direct Radiation) 40 CFR 190 requires that the annual dose equivalent not exceed 25 millirem to the whole body of any member of the public. The average quarterly exposure observed at the control monitoring stations was used to determine the background level (equivalent to 10.5 millirems monthly or 42.0 millirem annually), while the highest total annual dosimeter reading at an individual site boundary environmental monitoring location (55.2 millirem) was observed at Environmental Monitoring Station #64. The difference in these values determines the maximum possible direct radiation dose exposure to an offsite member of the public. Accordingly, the hypothetical maximum direct radiation dose exposure to the public for 2018 was determined to be 13.2 millirem by subtraction of average background from the maximum annual indicator site.

The trends below include the average quarterly exposure (in millirem, mR) for Ginna's direct radiation monitoring locations. This quarterly average is averaged for the year to facilitate trending.

Direct radiation is the measurement that a member of the public would experience due to being near a source of radioactivity, such as a nuclear power plant in addition to natural sources. These natural sources are present throughout the environment (examples include being near bedrock rich in granite, being in the presence of the sun, radon gas emerging from layers of earth, etc.)

and the direct radiation measurement Ginna collects is to determine if there is any statistically significant additional exposure from the operations of the nuclear facility.

Trend "B-12 Control and Indicator Averages (2012-2018) shows the relationship between the control samples (TL-08, TL-10, TL-12, TL-25 -TL-30) and the indicator samples (TL-02-TL 07, TL-11, TL-13 -TL-24, TL-31 -TL-40, TL-63, and TL-64). This trend illustrates that there is no statistically significant difference between control and indicator samples for direct radiation exposure in millirem from 2012-2018.

80

January 1 - December 31, 2018 Docket Nos. 50-244 B-12 Control and Indicator Averages {2012-2018)

• Control

• Indicator 20.0 18.0 16.0 14.0 Ill 12.0 * * * * * *

• 0 I'll g 10.0 a:

E 8.0 6.0 4.0 2.0 0.0 2012 2013 2014 201 5 2016 2017 2018 Year 81

January 1 - December 31, 2018 Docket Nos. 50-244 Average TLD m R / 90 Days Average TLD mR / 90 Days for TL- 02 for TL-03

{2012 - 2018) {2012-2018) 20.0 20.0

.,, 15.0 .,, 15.0 0"' * * * * * * * >

0"' * * * * * *

• g 10.0 g 10.0 a: a:

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Average TLD m R / 90 Days Average TLD m R / 90 Days for TL-04 for TL-05 (2012-2018) (2012-2018) 20.0 20.0 15.0 15.0 g 10.0 *

• 0 0 g 10.0 a: a:

E E 5.0 5.0 0.0 0.0 2012 2013 2014 20 15 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Yea r Year 82

January 1 - December 31, 2018 Docket No . 50-244 Average TLD m R / 90 Days Average TLD m R / 90 Days for TL- 06 for TL - 07 (2012-2018} (2012-2018) 20.0 20.0

.,, 15.0 15.0

> "'Ill>

• Ill C

g 10.0 * * *

• C g 10.0 * * * *

• 0:: 0::

E E 5.0 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Ye ar Year Average TLD mR / 90 Days Average TLD mR / 90 Days for TL-08 for TL-09 (2012 - 2018} (2012-2018}

20.0 20.0

.,, 15.0 15.0 Ill

"'Ill>

C g 10.0 * * * * * *

• C g 10.0 * * * * * *

• 0:: 0::

E E 5.0 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Ye ar Year 83

January l - December 31, 2018 Docket Nos. 50-244 Average TLD m R / 90 Days Average TLD mR / 90 Days for TL- 10 for TL-11

{2012-2018) {2012-2018) 20.0 20.0

.,, 15.0 .,, 15.0 ro ro 0

~ 10.0

• 0

~ 10.0

• a: a:

E E 5.0 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Average TLD mR / 90 Days Average TLD mR / 90 Days for TL - 12 for TL-13

{2012 - 2018) {2012 - 2018) 20.0 20.0

.,, 15.0

.,, 15.0

• ro 0

ro

~ 10.0

• * * * * *

• 0

~ 10.0 a: a:

E E 5.0 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year 84

January 1 - December 31, 2018 Docket Nos. 50-244 Average TLD mR / 90 Days Average TLD m R / 90 Days for for TL- 14 TL-15 (2012 - 2018} (2012 - 2018}

20.0 20.0

.,, 15.0 .,, 15.0 Ill Ill * * * * * *

• C g 10.0

• C g 10.0 a:: a::

E E 5.0 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Average TLD mR / 90 Days Average TLD mR / 90 Days forTL - 16 for TL-17 (2012 - 2018} (2012-2018}

20.0 20.0

.,, 15.0 .,, 15.0 C

Ill

• * * * * *

• C Ill g 10.0 g 10.0 a:: a::

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year 85

January l - December 31, 2018 Docket Nos. 50-244 Average TLD mR / 90 Days Average TLD m R / 90 Days for TL- 18 forTL-19 (2012 - 2018) (2012-2018) 20.0 20.0 111 15.0 111 15.0 IQ IQ 0 0 g 10.0

• * * * * *

• g 10.0 a: a:

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Average TLD mR / 90 Days Average TLD mR / 90 Days for TL-20 for TL-21 (2012-2018) (2012-2018) 20.0 20.0

.,, 15 .0 "'> 15.0 g 10.0 *

• g 10.0 *

• IQ 0

IQ

• * *

• C a: a:

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year 86

January 1 -December 31, 2018 Docket Nos. 50-244 Average TLD mR / 90 Days Average TLD mR / 90 Days for TL- 22 for TL-23 (2012 - 2018) (2012-2018) 20.0 20.0 VI 15.0 VI 15.0 IV IV C

g 10.0

• * * * *

• C g 10.0 0: 0:

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Average TLD mR / 90 Days Average TLD mR / 90 Days for TL-24 for TL-25

{2012 - 2018) (2012-2018) 20.0 20.0 VI 15.0 VI 15.0 C

IV

• * * * * *

• C IV g 10.0 g 10.0 0: 0:

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Yea r Year 87

January 1 - December 31 , 2018 Docket Nos. 50-244 Average TLD mR / 90 Days Average TLD mR / 90 Days for TL- 26 for TL-27 (2012-2018) (2012-2018) 20.0 20.0

.,, 15.0 "' 15.0 0"' "' *

~ 10.0 * * * * * *

• 0

~ 10.0 * * * * *

• ex: ex:

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Yea r Year Average TLD m R / 90 Days Average TLD mR / 90 Days for TL- 28 for TL-29 (2012 - 2018) {2012-2018) 20.0 20.0 15.0 "'> 15.0

'?"' "'

g 10.0 0

~ 10.0 * * * * *

• ex: ex:

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year 88

January 1 - December 31 , 2018 Docket Nos. 50-244 Average TLD mR / 90 Days Average TLD mR / 90 Days for TL- 30 forTL-31 (2012-2018) (2012-2018) 20.0 20.0

"' 15.0 "' 15.0 0"' 0 g 10.0 e

• * * *

• g 10.0 IX IX E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Ye ar Year Average TLD m R / 90 Days Average TLD mR / 90 Days for TL- 32 for TL-33 (2012-2018) (2012-2018) 20.0 20.0

.,, 15.0 "' 15.0 9"'

• 0"'

~

10.0

• * * *

• g 10.0 IX IX E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year 89

January 1 - December 31, 2018 Docket Nos. 50-244 Average TLD mR / 90 Days Average TLD m R / 90 Days for TL- 34 for TL-35

{2012-2018} (2012-2018}

20.0 20.0 VI 15.0 15.0 VI C

"' * * * * *

• C g 10.0 g 10.0 a: 0:::

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Average TLD mR / 90 Days Average TLD mR / 90 Days for TL- 36 for TL-37 (2012-2018} (2012-2018}

20.0 20.0 VI 15.0 VI 15.0 g 10.0 *

• C C

• * * *

• g 10.0 0::: 0:::

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Ye ar Year 90

January l - December 31 , 2018 Docket Nos. 50-244 Average TLD mR / 90 Days Average TLD mR / 90 Days for TL-38 for TL-39

{2012-2018) {2012-2018) 20.0 20.0

~ 15.0 VI 15.0 0"' * * * * * *

• 0"' * * * * * * *

~ 10.0 ~ 10.0 0:: 0::

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year Average TLD m R / 90 Days Average TLD mR / 90 Days for TL-40 for TL-63

{2012-2018) {2012-2018) 20.0 20.0 VI 15.0 VI 15.0 0

"' 0

~ 10.0 *

• * * * * * ~ 10.0 0:: 0::

E 5.0 E 5.0 0.0 0.0 2012 2013 2014 2015 2016 2017 2018 2012 2013 2014 2015 2016 2017 2018 Year Year 91

January 1 - December 31, 2018 Docket Nos. 50-244 Average TLD mR / 90 Day s for TL - 64

{2012 - 2018}

20 .0 15.0 0

111 11)

~ 10.0 a:

E 5.0 0.0 2012 2013 2014 2015 2016 2017 2018 Year 92

January 1 - December 31, 2018 Docket Nos. 50-244 E-Series 4 Table B-13 (Tritium in Groundwater)

Ginna's Offsite Dose Calculation Manual (ODCM) is written in accordance with specifications contained within 10 CFR 20 and the Branch Technical Position document published by the NRC in 1979. This document specifies Tritium and Gamma in Groundwater samples to be detected to a Lower Limit of Detection (LLD) of 2,000 pCi/1. Since that time, detection capabilities have improved which allow values to be measured lower than the required 2,000 pCi/1 and Ginna measures tritium concentration down to a LLD of 500 pCi/1.

The trends below include the tritium averages (from 2012-2018) for Ginna's groundwater samples (GWO I, GW03 - GW08, GW GW 16). A tritium value of greater than 20,000 pCi/1 would indicate radionuclides in the sample which would require further analysis and offsite reporting. From 2012 through 2018, no such results have been received from Ginna's REMP program.

Tritium (H-3) is a radioactive form of Hydrogen and, when detected in the environment at high-levels (greater than 2,000 pCi/1, can be an indication that plant effluents may have been introduced into the environment. Tritium is sampled for at nuclear facilities due to its exposure capabilities for members of the public. Essentially, Tritium, when in an aqueous form, flows like water and can be found in surface water, groundwater, and atmospheric environs due to evaporative processes found in nature. Nuclear stations place a sensitivity on detecting Tritium in the environment as it is an efficient marker to show if radioactivity has been introduced off-site.

All results shown below are less-than values (<LLD) excluding the sample result for groundwater monitoring well GW04 from 1/30/2013, which the result was 2,520 pCi/1. This higher than normal value was the result of atmospheric recapture of gaseous tritium which accumulated in snow located around the facility. As this snow melted during this sampling period, this recaptured tritium was introduced into the groundwater and captured via our groundwater sampling program. It is worth noting that this value of 2,520 pCi/1 is roughly 8-times lower than the reportable limit of 20,000 pCi/1.

Additionally, groundwater monitoring well GW 14 on 3/11/2014 was counted to an LLD of 2,000 pCi/1 rather than the LLD of 500 pCi/1. Actual result was a less than value of< 1,950 pCi/1.

Subsequent samples were collected to ensure there was no detectable tritium in the environment and these samples returned values of Jess than 500 pCi/1.

Ginna classifies groundwater monitoring well GWOl (West of the station, "upstream" as the "control" location for sampling. Due to the sampling frequencies of this program, it is difficult to graphically compare the control samples against the indicator samples. Since 2012, the average tritium concentration in control samples (Groundwater Monitoring Well GWOl) was< 452 pCi/1 whereas the average tritium concentration in indicator samples (Groundwater Monitoring Well GW GW08, GW 10-GW 16) was < 454 pCi/1. This result demonstrates that there is no statistically significant difference between control and indicator samples for Ginna's groundwater samples for the REMP.

93

January l - December 31 , 2018 Docket Nos. 50-244 Tritium in Groundwater Well GWOl 2000 1800 1600

. 1400

~ 1200

• eC:

1000

-e 800

~ 600 400 ******* * * ** * * * * * * * * * * * * * * * * * * * *

• 200 0

1/1/2012 5/15/2013 9/27/2014 2/9/2016 6/23/2017 11/5/2018 Date Tritium 1n Groundwater Well GW03 2000 1800 1600

. 1400

~ 1200

• e C:

1000

• -5 800

'i:

t- 600 400

• 200 0

1/1/2012 5/15/2013 9/27/2014 2/9/2016 6/23/ 2017 11/5/2018 Date 94

January 1 - December 31 , 2018 Docket Nos. 50-244 Tritium 1n Groundwater Well GW04 3000 S 2000 u

a.

2500

• ~ Sec explanation in Appendix E

• =E 1500

I

-e

~ 1000 500 0

1/1/2012 5/15/2013 9/27/2014 2/9/2016 6/23/ 2017 11/5/2018 Date Tritium In Groundwater Well GWOS 2000 1800 1600

. 1400 i 1200

• e 1000 C:

I

• .;:; 800

.... 600 400 * * * * * ** * * * * * * * * * * * * * * * * * * * *

• 200 0

1/1/ 2012 5/15/2013 9/27/2014 2/9/2016 6/23/ 2017 11/5/2018 Date 95

January 1 - December 31, 2018 Docket Nos. 50-244 Tritium 1n Groundwater Well GW06 2000 1800 1600

. 1400

~ 1200

• e 1000 C:

• E*;: 800 1- 600 400 * * * * * ** * * * * * * * * * * * * * * * * * * * *

• 200 0

1/1/ 2012 5/15/2013 9/27/2014 2/9/2016 6/ 23/2017 11/5/2018 Date Tritium 1n Groundwater Well GW07 2000 1800 1600

. 1400

~ 1200

• e C:

1000

• E*;: 800 1- 600 400 ******* * * ** * * * * * * * * * * * * * * * * * * * *

• 200 0

1/1/2012 5/15/2013 9/27/2014 2/9/2016 6/23/2017 11/5/2018 Dat e 96

January l - December 31 , 2018 Docket Nos. 50-244 Tritium in Groundwater Well GW08 2000 1800 1600

. 1400

~ 1200 C

• E 1000

~ 800

~ 600 400 200

.A . . . . . . . . . . . . - *****

0 1/1/2012 5/15/2013 9/27/2014 2/9/2016 6/23/2017 11/5/ 2018 Date Trit ium 1n Groundwater Wel l GW10 2000 1800 1600

. 1400

~ 1200 C

• E 1000

e 800

~ 600 400 * * * * ** * * * * * * * * * * * * * * * * * * * *

• 200 0

1/1/2012 5/15/2013 9/27/2014 2/9/2016 6/23/ 2017 11/5/2018 Date 97

January 1 - December 31, 2018 Docket Nos. 50-244 Tritium in Groundwater Well GWll 2000 1800 1600

. 1400

~ 1200

• ~ 1000

~ 800 i= 600 400 ******* * * ** * * * * * * * * * * * * * * * * * * * *

• 200 0

1/1/2012 5/15/2013 9/27/2014 2/9/2016 6/23/ 2017 11/5/2018 Date Tritium in Groundwater Well GW12 2000 1800 1600

. 1400

~ 1200

• e 1000 C

J

• .;; 800 I- 600 400 * * * * * * * * * * * * * * * * *==c=---*

200 0

11/22/2013 4/6/2015 8/18/2016 12/31/2017 Date 98

January 1 - December 31, 2018 Docket Nos. 50-244 Tritium in Groundwater Well GW13 2000 1800 1600

.::::. 1400

~ 1200

• e 1000 C

.  ::I

' i:

I-800 600 400 * * * * * * * * * * * * * * * * * * *

• 200 0

11/22/2013 4/6/2 015 8/18/2016 12/31/2017 Date Tritium in Groundwater Well GW14 3000 2500 S 2000 u

• e C.

C

I 1500

• ~ Sec explanation in .* ppcndix E

~ 1000 500 e 0

11/22/2013 4/6/ 201 5 8/18/2016 12/31/2017 Dat e 99

January 1 - December 31, 2018 Docket Nos. 50-244 Tritium 1n Groundwater Well GW15 2000 1800 1600

- 1400

~

'6_ 1200

.: 1000 E

J

• 800

.... 600 400 * * * * * * * * * * * * * * * * * * * *

• 200 0

11/22/2013 4/6/2015 8/18/20 16 12/ 31/2017 Date Tritium in Groundwater Well GW16 2000 1800 1600

. 1400

~ 1200

• eC:

J 1000

~ 800

~ 600 400 * * * * * * * * * * * * * * * *

• 200 0

11/22/2013 4/6/201 5 8/18/2016 12/31/2017 Date 100