Text

Annual Radiological Environmental Operating Reports for 2020
	ML21131A070
Person / Time
Site:	Hatch, Vogtle, Farley
Issue date:	05/11/2021
From:	Gayheart C; Southern Nuclear Company
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	NL-21-0474
	Download: ML21131A070 (170)
	v • d • e

Cheryl A. Gayheart Regulatory Affairs Director 3535 Colonnade Parkway Birmingham, AL 35243 205 992 5316 cagayhea@southernco.com NL-21-0474 May 11, 2021 Docket Nos.: 50-321 50-348 50-424 50-366 50-364 50-425 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D. C. 20555-0001 Edwin I. Hatch Nuclear Plant - Units 1 & 2 Joseph M. Farley Nuclear Plant - Units 1 & 2 Vogtle Electric Generating Plant - Units 1 & 2 Annual Radiological Environmental Operating Reports for 2020 Ladies and Gentlemen:

In accordance with section 5.6.2 of the referenced plants Technical Specifications, Southern Nuclear Operating Company hereby submits the Annual Radiological Environmental Operating Reports for 2020.

This letter contains no NRC commitments. If you have any questions, please contact Jamie Coleman at 205.992.6611.

Respectfully submitted, Cheryl A. Gayheart Regulatory Affairs Director CAG/kgl/cg

Enclosures:

1. Hatch Annual Radiological Environmental Operating Report for 2020

2. Farley Annual Radiological Environmental Operating Report for 2020

3. Vogtle Annual Radiological Environmental Operating Report for 2020 cc:

Regional Administrator, Region ll NRR Project Manager - Farley, Hatch, Vogtle 1 & 2 Senior Resident Inspector - Farley, Hatch, Vogtle 1 & 2 RType: CGA02.001 State of Alabama Department of Public Health, Office of Radiation Control State of Georgia Department of Natural Resources American Nuclear Insurers

Edwin I. Hatch Nuclear Plant - Units 1 & 2 Joseph M. Farley Nuclear Plant - Units 1 & 2 Vogtle Electric Generating Plant - Units 1 & 2 Annual Radiological Environmental Operating Reports for 2020 Hatch Annual Radiological Environmental Operating Report for 2020

EDWIN I. HATCH NUCLEAR PLANT 2020 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report i l P a g e TABLE OF CONTENTS 1

Introduction.................................................................................................. 1 2

REMP Description......................................................................................... 2 3

Results Summary.......................................................................................... 7 3.1 Airborne Particulates............................................................................................ 14 3.1.1 Gross Beta............................................................................................................ 14 3.1.2 Gamma Particulates............................................................................................. 16 3.2 Direct Radiation.................................................................................................... 16 3.3 Biological Media.................................................................................................... 19 3.3.1 Milk...................................................................................................................... 19 3.3.2 Vegetation............................................................................................................ 19 3.3.3 Fish....................................................................................................................... 19 3.3.4 Biological Media Summary.................................................................................. 20 3.4 Surface Water....................................................................................................... 21 3.5 Sediment............................................................................................................... 22 3.6 Interlaboratory Comparison Program.................................................................. 22 3.7 Groundwater......................................................................................................... 26 4

Survey Summaries...................................................................................... 29 4.1 Land Use Census................................................................................................... 29 4.2 Altamaha River Survey.......................................................................................... 29 4.3 Meteorological Report Summary......................................................................... 30 5

Conclusions................................................................................................. 31 Tables Table 2-1. Summary Description of Radiological Environmental Monitoring Program............................... 3 Table 2-2. Radiological Environmental Sampling Locations........................................................................ 5 Table 3-1. Radiological Environmental Monitoring Program Annual Summary.......................................... 9 Table 3-2. Reporting Levels (RL)................................................................................................................. 12 Table 3-3. Anomalies and Deviations from Radiological Environmental Monitoring Program................. 13 Table 3-4. Average Weekly Gross Beta Air Concentration......................................................................... 15 Table 3-5. Average Quarterly Exposure from Direct Radiation (Historical)............................................... 17 Table 3-6. Interlaboratory Comparison Limits........................................................................................... 22 Table 3-7. Interlaboratory Comparison Summary..................................................................................... 24 Table 3-8. Groundwater Monitoring Locations......................................................................................... 26 Table 3-9. Groundwater Protection Program Tritium Results (pCi/L)....................................................... 27 Table 4-1. Land Use Census Results........................................................................................................... 29

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report ii l P a g e Figures Figure 3-1. Average Weekly Gross Beta Air Concentration........................................................................ 15 Figure 3-2. Average Quarterly Exposure from Direct Radiation................................................................. 18 Figure 3-3. 2020 Average Exposure from Direct Radiation........................................................................ 18 Figure 3-4. 2020 Biological Media Average Cs-137 Concentrations........................................................... 20 Figure 3-5. Average Annual Tritium Concentrations in River Water.......................................................... 21 Appendix A - Maps A REMP Stations in Plant Vicinity A REMP Stations within 10 Miles A Facility Groundwater Wells Appendix B - Errata Appendix C - Data

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report iii l P a g e LIST OF ACRONYMS AREOR Annual Radiological Environmental Operating Report BWR Boiling Water Reactor CL Confidence Level GPC Georgia Power Company GPCEL Georgia Power Company Environmental Laboratory HNP Edwin I. Hatch Nuclear Plant ICP Interlaboratory Comparison Program MDC Minimum Detectable Concentration MDD Minimum Detectable Difference MWt MegaWatts Thermal NA Not Applicable NDM No Detectable Measurement(s)

NEI Nuclear Energy Institute NRC Nuclear Regulatory Commission ODCM Offsite Dose Calculation Manual OSLD Optically Stimulated Luminescence REMP Radiological Environmental Monitoring Program RL Reporting Level RM River Mile SNC Southern Nuclear Operating Company TLD Thermoluminescent Dosimeter TS Technical Specification

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 1 l P a g e 1 INTRODUCTION The Radiological Environmental Monitoring Program (REMP) was conducted in accordance with Chapter 4 of the Offsite Dose Calculation Manual (ODCM). The REMP activities for 2020 are reported herein in accordance with Technical Specification (TS) Section 5.6.2 and ODCM Section 7.1.

The objectives of the REMP were to:

1) Determine the levels of radiation and the concentrations of radioactivity in the environs and;

2) Assess the radiological impact (if any) to the environment due to the operation of the Edwin I.

Hatch Nuclear Plant (HNP).

The assessments included comparisons between the results of analyses of samples obtained at locations where radiological levels were not expected to be affected by plant operation (control stations), areas of higher population (community stations), and at locations where radiological levels were more likely to be affected by plant operation (indicator stations), as well as comparisons between preoperational and operational sample results.

HNP is owned by Georgia Power Company (GPC), Oglethorpe Power Corporation, the Municipal Electric Authority of Georgia, and Dalton Utilities. The plant is located in Appling County, Georgia on the southwest side of the Altamaha River near Baxley, Georgia. Unit 1, a General Electric Company Boiling Water Reactor (BWR) with a licensed core thermal output of 924 MegaWatts (MWt), began commercial operation on December 31, 1975. Unit 2, also a General Electric Company BWR rated for 924 MWt, began commercial operation on September 5, 1979.

The pre-operational stage of the REMP began with the establishment and activation of the environmental monitoring stations in January of 1972. The operational stage of the REMP began on September 12, 1974 with Unit 1 initial criticality.

x A description of the REMP is provided in Section 2 of this report x Section 3 provides a summary of the results, an assessment of any radiological impacts to the environment, and the results from the interlaboratory comparison x A summary of the land use census and the river survey are included in Section 4 x Conclusions are included in Section 5

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 2 l P a g e 2 REMP DESCRIPTION The following section provides a description of the sampling and laboratory protocols associated with the REMP. Table 2-1 provides a summary of the sample types to be collected and the analyses to be performed in order to monitor the airborne, direct radiation, waterborne and ingestion pathways, and also summarizes the collection and analysis frequencies (in accordance with ODCM Section 4.2). Table 2-2 provides specific information regarding the station locations, their proximity to the plant, and exposure pathways. Additionally, Appendix A of this report provides Maps A-1 through A-3 that depict the georeferenced location of sampling stations.

Appendix B contains any Errata from previous reports, no Errata was identified for inclusion in this 2020 report. Analytical results for each of the analyzed REMP sampling points are provided in Appendix C.

Beginning in October 2017 and continuing through 2020, a contractor through Southern Nuclear Operating Company (SNC) provided services for the collection of most of the REMP samples, only fish samples were collected by the Georgia Power Company Environmental Lab (GPCEL) in Atlanta, Georgia. The GPCEL analyzed all REMP samples.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 3 l P a g e Table 2-1. Summary Description of Radiological Environmental Monitoring Program Exposure Pathway and/or Sample Approximate Number of Sample Locations Sampling/Collection Frequency Type/Frequency of Analysis Direct Radiation 37 routine monitoring stations Quarterly Gamma dose/Quarterly Airborne Radioiodine and Particulates Samples from six locations:

Continuous sampler operation with sample collection weekly Particulate sampler: Analyze for gross beta radioactivity not less than 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months following filter change/Weekly; perform gamma isotopic analysis on affected sample when gross beta activity is 10 times the yearly mean of control samples. Perform gamma isotopic analysis on composite sample (by location)/Quarterly.

Radioiodine canister: I-131 analysis/Weekly Waterborne Surface One sample upriver One sample downriver Composite sample over one month period1 Gamma isotopic analysis2/Monthly Composite for tritium analysis/Quarterly Drinking3,4 One sample of river water near the intake and one sample of finished water from each of one to three of the nearest water supplies which could be affected by HNP discharges.

River water collected near the intake will be a composite sample; the finished water will be a grab sample. These samples will be collected monthly unless the calculated dose due to consumption of the water is greater than 1 mrem/year; then the collection will be biweekly.

The collections may revert to monthly should the calculated doses become less than 1 mrem/year.

I-131 analysis on each sample when biweekly collections are required. Gross beta and gamma isotopic analysis on each sample; composite (by location) for tritium analysis/Quarterly.

Groundwater See Table 3-8 and Map A-4 in Appendix A for on-site well locations. These are part of the GWPP (NEI 07-07).

Quarterly sample; pump used to sample GW wells; grab sample from yard drains and ponds Groundwater is sampled per the guidance under NEI 07-07.

Tritium, gamma isotopic, and field parameters of each sample; hard-to-detects based on tritium and gamma results Shoreline Sediment Two Semiannually Gamma isotopic analysis2/Semiannually

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 4 l P a g e Table 2-1. Summary Description of Radiological Environmental Monitoring Program Exposure Pathway and/or Sample Approximate Number of Sample Locations Sampling/Collection Frequency Type/Frequency of Analysis Ingestion Milk5 One Bimonthly Gamma isotopic analysis2,7/Bimonthly Fish or Clams6 Two Semiannually during spawning season Gamma isotopic analysis2 on edible portions

/Semiannually Grass or Leafy Vegetation Three Monthly during growing season Gamma isotopic analysis2,7/Monthly Notes:

1Composite sample aliquots were collected at time intervals were are very short (e.g., hourly) relative to the compositing period (e.g., monthly) to ensure obtaining a representative sample.

2Gamma isotopic analysis means the identification and quantification of gamma-emitting radionuclides that may be attributable to the effluents from the facility.

3If it is found that river water downstream of the plant is used for drinking, drinking water samples will be collected and analyzed as specified herein.

4A survey shall be conducted annually at least 50 river miles downstream of the plant to identify those who use water from the Altamaha River for drinking.

5Up to three sampling locations within five miles and in different sectors will be used as available. In addition, one or more control locations beyond 10 miles will be used.

6Commercially or recreationally important fish may be sampled. Clams may be sampled if difficulties are encountered in obtaining sufficient fish samples.

7If the gamma isotopic analysis is not sensitive enough to meet the Minimum Detectable Concentration (MDC) for I-131, a separate analysis for I-131 may be performed.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 5 l P a g e Table 2-2. Radiological Environmental Sampling Locations Station Number Station Type Descriptive Location Direction1 Distance (miles)1 Radiation Sample Type 064 Other Roadside Park WNW 0.8 Direct 101 Indicator Inner Ring N

1.9 Direct 102 Indicator Inner Ring NNE 2.5 Direct 103 Indicator Inner Ring NE 1.8 Airborne, Direct 104 Indicator Inner Ring ENE 1.6 Direct 105 Indicator Inner Ring E

3.7 Direct 106 Indicator Inner Ring ESE 1.1 Direct, Vegetation 107 Indicator Inner Ring SE 1.2 Airborne, Direct 108 Indicator Inner Ring SSE 1.6 Direct 109 Indicator Inner Ring S

0.9 Direct 110 Indicator Inner Ring SSW 1.0 Direct 111 Indicator Inner Ring SW 0.9 Direct 112 Indicator Inner Ring WSW 1.0 Airborne, Direct, Vegetation 113 Indicator Inner Ring W

1.1 Direct 114 Indicator Inner Ring WNW 1.2 Direct 115 Indicator Inner Ring NW 1.1 Direct 116 Indicator Inner Ring NNW 2.04 Airborne, Direct 170 Control Upstream WNW

- 2 River3 172 Indicator Downstream E

- 2 River3 201 Other Outer Ring N

5.0 Direct 202 Other Outer Ring NNE 4.9 Direct 203 Other Outer Ring NE 5.0 Direct 204 Other Outer Ring ENE 5.0 Direct 205 Other Outer Ring E

7.2 Direct 206 Other Outer Ring ESE 4.8 Direct 207 Other Outer Ring SE 4.3 Direct 208 Other Outer Ring SSE 4.8 Direct 209 Other Outer Ring S

4.4 Direct 210 Other Outer Ring SSW 4.3 Direct 211 Other Outer Ring SW 4.7 Direct 212 Other Outer Ring WSW 4.4 Direct 213 Other Outer Ring W

4.3 Direct 214 Other Outer Ring WNW 5.4 Direct 215 Other Outer Ring NW 4.4 Direct 216 Other Outer Ring NNW 4.8 Direct 301 Other Toombs Central School N

8.0 Direct

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 6 l P a g e Table 2-2. Radiological Environmental Sampling Locations Station Number Station Type Descriptive Location Direction1 Distance (miles)1 Radiation Sample Type 304 Control State Prison ENE 11.2 Airborne, Direct 304 Control State Prison ENE 10.3 Milk 309 Control Baxley Substation S

10.0 Airborne, Direct 416 Control Emergency News Center NNW 21.0 Direct, Vegetation Notes:

1Direction and distance were determined from the main stack.

2Station 170 was located approximately 0.6 river miles upstream of the intake structure for river water, 1.1 river miles for sediment and clams, and 1.5 river miles for fish.

Station 172 was located approximately 3.0 river miles downstream of the discharge structure for river water, sediment and clams, and 1.7 river miles for fish.

The locations from which river water and sediment may be taken can be sharply defined. However, the sampling locations for clams often have to be extended over a wide area to obtain a sufficient quantity. High water adds to the difficulty in obtaining clam samples and may also make an otherwise suitable location for sediment sampling unavailable. A stretch of the river of a few miles or so was generally needed to obtain adequate fish samples. The mile locations given above represent approximations of the locations where samples were collected.

3River (fish or clams, shoreline sediment, and surface water) 4This station was shifted approximately 0.4 miles due to a highway widening project. Sector did not change.

Map A-1 shows the new station location.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 7 l P a g e 3 RESULTS

SUMMARY

Included in this section are statistical evaluations of the laboratory results, comparison of the results by media, and a summary of the anomalies and deviations. Overall, 1,392 analyses were performed across nine exposure pathways. Tables and figures are provided throughout this section to provide an enhanced presentation of the information.

In recent history, man-made nuclides have been released into the environment and have resulted in wide spread distribution of radionuclides across the globe. For example, atmospheric nuclear weapons tests from the mid-1940s through 1980 distributed man-made nuclides around the world. The most recent atmospheric tests in the 1970s and in 1980 have had a significant impact upon the radiological concentrations found in the environment prior to and during pre-operation, and through early operation. Some long-lived radionuclides, such as Cs-137, continue to be detected and a portion of these detections are believed to be attributed to the nuclear weapons tests.

Additionally, data associated with certain radiological effects created by off-site events have been removed from the historical evaluation, this includes: the nuclear atmospheric weapon test in the fall of 1980, the Chernobyl incident in the spring of 1986 and the Fukushima accident in the spring of 2011.

As indicated in ODCM 7.1.2.1, the results for naturally occurring radionuclides that are also found in plant effluents must be reported along with man-made radionuclides. Historically, the radionuclide Be-7, which occurs abundantly in nature, is often detected in REMP samples, and occasionally detected in the plants liquid and gaseous effluents. In 2020, Be-7 was not detected in plant effluents and therefore it was not included in this report. When it is detected in plant effluents and REMP samples, it is also included in the REMP results. The Be-7 detected in select REMP samples likely represents naturally occurring and/or background conditions As part of the data evaluation process, SNC considered the impact of the non-plant associated nuclides along with a statistical evaluation of the REMP data. The statistical evaluations included within this report include the Minimum Detectable Concentration (MDC), the Minimum Detectable Difference (MDD), and Chauvenets Criterion as described below.

Minimum Detectable Concentration The minimum detectable concentration is defined as an estimate of the true concentration of an analyte required to give a specified high probability that the measured response will be greater than the critical value.

Minimum Detectable Difference The Minimum Detectable Difference (MDD) compares the lowest significant difference (between the means) of a control station, versus an indicator station or a community

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 8 l P a g e station, that can be determined statistically at the 99% Confidence Level (CL). A difference in mean values which was less than the MDD was considered to be statistically indiscernible. The MDD is used to evaluate the statistical proximity between the indicator/community and control sample results, but generally, any results that are less than the MDC and/or Reporting Levels (RL) are considered to have minimal impact on the surrounding environs.

Chauvenets Criterion All results were tested for conformance with Chauvenet's Criterion (G. D. Chase and J. L.

Rabinowitz, Principles of Radioisotope Methodology, Burgess Publishing Company, 1962, pages 87-90) to identify values which differed from the mean of a set by a statistically significant amount. Identified outliers were investigated to determine the reason(s) for the difference. If equipment malfunction or other valid physical reasons were identified as causing the variation, the anomalous result was excluded from the data set as non-representative.

Table 3-1 summarizes and evaluates the annual results for the indicator stations against the control and community stations (where applicable) and as appropriate, results were evaluated against the MDCs (listed in Table 3-1) and RLs (listed in Table 3-2). The required MDCs were achieved during laboratory sample analysis. The 2020 results were compared with previous results, including those obtained during pre-operation. No data points were excluded for violating Chauvenets Criterion.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 9 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Units)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f) Mean (b),

Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Airborne Particulates (fCi/m3)

Gross Beta 317 10 21.1 11.1-49.4 (211/211)

Inner Ring NNW 1.6 mi.

(Indicator) 21.7 11.9-43.1 (53/51) 20.7 11.9-43.1 (106/101)

Gamma Isotopic 24 Be-7 24 I-131 70 NDM(c)

NDM NDM Cs-134 50 NDM NDM NDM Cs-137 60 NDM NDM NDM Airborne Radioiodine (fCi/m3)

I-131 309 70 NDM NDM NDM NDM Direct Radiation (mR/91 days)

Gamma Dose 148 12.7 6.7-22.6 (64/64)

Inner Ring NW 1.1 mi.

18.2 10.9-22.6 (4/4) 12.5 5.6-22.6 (72/72) 12.6 9-16.3 (12/12)

Milk (pCi/l)

Gamma Isotopic 24 I-131 1

NDM NDM Cs-134 15 NDM NDM Cs-137 18 NDM NDM Ba-140 60 NDM NDM La-140 15 NDM NDM Vegetation (pCi/kg-wet)

Gamma Isotopic 36 Be-7 I-131 60 NDM NDM Cs-134 60 NDM NDM

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 10 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Units)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f) Mean (b),

Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Cs-137 80 15.9 0-56.7 (24/24)

Inner Ring ESE 1.1 mi.

Indicator 31.8 0-56.7 (12/12) 19.35 0-80 (12/12)

River Water (pCi/l)

Gamma Isotopic 12 Mn-54 15 NDM NDM NDM Fe-59 30 NDM NDM NDM Co-58 15 NDM NDM NDM Co-60 15 NDM NDM NDM Zn-65 30 NDM NDM NDM Zr-95 30 NDM NDM NDM Nb-95 15 NDM NDM NDM I-131 15(d)

NDM NDM NDM Cs-134 15 NDM NDM NDM Cs-137 18 NDM NDM NDM Ba-140 60 NDM NDM NDM La-140 15 NDM NDM NDM Tritium 8

3000 (e) 82.5 0-207 (4/4)

Downstream E ~

3.0 RM from intake 82.5 0-207 (4/4) 33.5 0-134 (0/0)

Fish (pCi/kg-wet)

Gamma Isotopic 1

Be-7 655(d)

NDM NDM Mn-54 130 NDM NDM Fe-59 260 NDM NDM Co-58 130 NDM NDM

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 11 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Units)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f) Mean (b),

Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Co-60 130 NDM NDM Zn-65 260 NDM NDM Cs-134 130 NDM NDM Cs-137 150 NDM NDM Sediment (pCi/kg-dry)

Gamma Isotopic 4

Cs-134 150 NDM NDM Cs-137 180 NDM NDM Notes:

(a)The MDC is defined in ODCM 10.1. Except as noted otherwise, the values listed in this column are the detection capabilities required by ODCM Table 4-3.

The values listed in this column are a priori (before the fact) MDCs. In practice, the a posteriori (after the fact) MDCs are generally lower than the values listed.

(b) Mean and range were based upon detectable measurements only. The fraction of all measurements at a specified location that are detectable is placed in parenthesis.

(c) No Detectable Measurement(s) (NDM).

(d) If a drinking water pathway were to exist, a MDC of 1pCi/L would have been used.

(e) If a drinking water pathway were to exist, a MDC of 2000 pCi/L would have been used.

Not Applicable (NA) (sample not required)

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 12 l P a g e Table 3-2. Reporting Levels (RL)

Analysis Water (pCi/l) Airborne Particulate or Gases (fCi/m3)

Fish (pCi/kg-wet)

Milk (pCi/l)

Grass or Leafy Vegetation (pCi/kg-wet)

H-3 20,000a Mn-54 1,000 30,000 Fe-59 400 10,000 Co-58 1,000 30,000 Co-60 300 10,000 Zn-65 300 20,000 Zr-95 400 Nb-95 700 I-131 2b 900 3

100 Cs-134 30 10,000 1,000 60 1,000 Cs-137 50 20,000 2,000 70 2,000 Ba-140 200 300 La-140 100 400 a This is the 40 CFR 141 value for drinking water samples. If no drinking water pathway exists, a value of 30,000 may be used.

b If no drinking water pathway exists, a value of 20 pCi/l may be used.

In accordance with ODCM 4.1.1.2.1, deviations from the required sampling schedule were permitted, if samples were unobtainable due to hazardous conditions, unavailability, inclement weather, equipment malfunction or other just reasons. Deviations from conducting the REMP sampling (as described in Table 2-1) are summarized in Table 3-3 along with their causes and resolution.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 13 l P a g e Table 3-3. Anomalies and Deviations from Radiological Environmental Monitoring Program Collection Period Affected Samples Anomaly (A)* or Deviation (D)**

Cause Resolution 04/14/20 - 04/21/20 Station 304 Partial Sample Collected.

Air sample station #304 lost power during the sample period.

Breaker reset and station returned to normal operation.

04/21/20 - 04/28/20 Station 304 No elapsed time on timer.

Air sampler functioned as normal and a sample was collected. The run time was estimated based on the recorded on and off times for the station.

Power cable replaced and timer ran normally.

04/21/20 - 04/28/20 Station 107 Partial sample collected.

Station lost power during sample period. 153.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months of sample was collected.

GPC contacted to restore power. Line was tested, break was located, and service returned.

08/10/20 - 08/17/20 Station 112 Partial sample collected.

Station collected 62.4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months of sample before power was lost.

GPC contacted to restore power. Line was teste, break was located, and service restored.

An anomaly is considered a non-standard sample that still meets sampling criteria outlined in SNC and Georgia Power Lab procedures.

- A deviation is a sample result that is not recorded due to not meeting scheduling and/or procedural requirements as outlined by SNC and Georgia Power Labs

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 14 l P a g e 3.1 Airborne Particulates As specified in Table 2-1, airborne particulate filters and charcoal canisters were collected weekly at four indicator stations (Stations 103, 107, 112 and 116) which encircle the plant at the site periphery and at two control stations (Station 304 and 309) which is approximately 10 miles from the main stack. At each sampling location containing a filter and cartridge series, air was continuously drawn through a glass fiber filter to retain airborne particulate and an activated charcoal canister was placed in series with the particulate filter in order to adsorb radioiodine.

3.1.1 Gross Beta As provided in Table 3-1, the 2020 annual average weekly gross beta activity was 21.1 fCi/m3 for the indicator stations. It was 0.4 fCi/m3 greater than the control station average of 20.7 fCi/m3 for the year. The difference was less than the calculated MDD of.96 fCi/m3, so the difference was not statistically discernable.

Average Air Gross Beta historical data (Table 3-4) is graphed to show trends associated with a prevalent exposure pathway (Figure 3-1). In general, there was close agreement between the results for the indicator, control and community stations. This close agreement supports the position that the plant was not contributing significantly to the gross beta concentrations in air.

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 15 l P a g e Table 3-4. Average Weekly Gross Beta Air Concentration Period Indicator (fCi/m3)

Control (fCi/m3)

Period Indicator (fCi/m3)

Control (fCi/m3)

Pre-op 140 140 1997 20.3 20.7 1974 87 90 1998 20.0 20.5 1975 85 90 1999 21.3 21.3 1976 135 139 2000 23.6 23.9 1977 239 247 2001 21.5 21.0 1978 130 137 2002 19.3 19.2 1979 38 39 2003 18.8 18.2 1980 49 48 2004 21.4 21.3 1981 191 203 2005 19.7 19.4 1982 33 34 2006 24.9 24.7 1983 31 30 2007 24.4 24.3 1984 26 28 2008 21.8 22.5 1985 22 21 2009 21.2 21.4 1986 36 38 2010 23.1 24.0 1987 23 22 2011 23.5 25.1 1988 22.6 21.7 2012 23.7 22.7 1989 18.4 17.8 2013 21.3 20.3 1990 19.3 18.7 2014 22.0 22.3 1991 18.1 18 2015 19.1 19.6 1992 18.5 18.4 2016 21.4 21.6 1993 20.4 20.7 2017 19.7 19.9 1994 19.5 19.7 2018 20.8 21.2 1995 21.7 21.7 2019 22.1 21.3 1996 21.3 21.4 2020 21.1 20.7 Figure 3-1. Average Weekly Gross Beta Air Concentration 0

50 100 150 200 250 Concentration (fCi/m3)

YEAR Indicator Control

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 16 l P a g e 3.1.2 Gamma Particulates During 2020, no man-made radionuclides were detected from the gamma isotopic analysis of the quarterly composites of the air particulate filter.

Airborne Radioiodine - I-131 was not detected in the air cartridges at either the indicator or control stations in 2020. Historically, gamma isotopes have been detected as a result of offsite events. On only one occasion since 1986, has a man-made radionuclide been detected in a quarterly composite. A small amount of Cs-137 (1.7 fCi/m3) was identified in the first quarter of 1991 at Station 304. The MDC and RL for Cs-137 in air are 60 and 20,000 fCi/m3, respectively.

3.2 Direct Radiation In 2020, direct (external) radiation was measured with Optically Stimulated Luminescent dosimeters (OSLD) by placing two OSLD badges at each station. The gamma dose at each station was reported as the average reading of the two badges. The badges were analyzed on a quarterly basis. An inspection was performed near mid-quarter for offsite badges to ensure that the badges were on-station and to replace any missing or damaged badges.

Two direct radiation stations were established in each of the 16 compass sectors, to form two concentric rings. The inner ring (Stations 101 through 116) was located near the plant perimeter as shown in Map A-1 in Appendix A and the outer ring (Stations 201 through 216) was located at distances of four to five miles from the plant as shown in Map A-2 in Appendix A. The stations in the East sector were a few additional miles away with regards to the other stations in their respective rings due to large swamps making normal access extremely difficult. The 16 stations forming the inner ring were designated as the indicator stations. The two-ring configuration of stations was established in accordance with NRC Branch Technical Position An Acceptable Radiological Environmental Monitoring Program, Revision 1, November 1979. The three control stations (Nos. 304, 309 and 416) were located at distances greater than 10 miles from the plant as shown in Map A-2. The mean and range values presented in the Other column in Table 3-1 includes the outer ring stations (stations 201 through 216) as well as stations 064 and 301, which monitor special interest areas. Station 064 was located at the onsite roadside park, while Station 301 was located near the Toombs Central School. Station 210, in the outer ring, was located near the Altamaha School (the only other nearby school).

As provided in Table 3-1, the 2020 average quarterly exposure at the indicator stations (inner ring) was 12.7 mR with a range of 6.7-22.6 mR. The indicator station average was 0.1 mR greater than than the control station average (12.6 mR with a range of 9-16.3 mR). The difference was less than the calculated MDD of.91 mR, so the difference was not statistically discernible.

The quarterly exposures acquired at the community/other (outer ring) stations during 2020 ranged from 5.6 to 19 mR with an average of 12.5 mR which was less than control station average by 0.1 mR.

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 17 l P a g e Average Direct Radiation historical data (Table 3-5) is graphed to show trends associated with a prevalent exposure pathway (Figure 3-2). The decrease between 1991 and 1992 values was attributed to a change in Thermoluminescent Dosimeters (TLDs) from Teledyne to Panasonic. It should be noted however that the differences between indicator and control and outer ring values did not change. The increase shown in 2010 reflected issues with the aging Panasonic TLD reader. The close agreement between the station groups has supported the position that the plant was not contributing significantly to direct radiation in the environment.

Figure 3-3 below provides a more detailed view of the 2020 values. The values for the special interest areas detailed below, indicate that Plant Hatch did not significantly contribute to direct radiation at those areas.

Table 3-5. Average Quarterly Exposure from Direct Radiation (Historical)

Period Indicator (mR)

Control (mR)

Outer Ring (mR)

Period Indicator (mR)

Control (mR)

Outer Ring (mR)

Pre-op 22.3 23.0 NA 1997 12.3 11.8 12.3 1974 23.2 25.6 NA 1998 12.1 12.3 12.3 1975 10.0 10.5 NA 1999 12.8 13.2 13.0 1976 8.18 6.90 NA 2000 13.6 13.3 13.3 1977 7.31 6.52 NA 2001 12.0 12.1 11.8 1978 6.67 6.01 NA 2002 11.7 11.7 11.5 1979 5.16 6.77 NA 2003 11.4 11.4 11.4 1980 4.44 5.04 4.42 2004 12.2 12.4 12.2 1981 5.90 5.70 5.70 2005 12.1 12.5 12.0 1982 12.3 12.0 11.3 2006 12.4 11.9 11.8 1983 11.4 11.3 10.6 2007 12.8 12.5 12.6 1984 13.3 12.9 11.9 2008 13.0 12.3 12.4 1985 14.7 14.7 13.7 2009 12.4 12.2 12.2 1986 15.0 14.0 14.5 2010 15.8 15.6 16.0 1987 14.9 14.6 15.3 2011 19.7 19.1 19.2 1988 15.0 14.7 15.2 2012 14.4 13.6 14.1 1989 16.4 18.0 16.5 2013 12.7 10.2 12.4 1990 14.9 13.9 14.7 2014 12.0 11.7 11.8 1991 15.1 13.7 15.6 2015 12.1 11.7 12.1 1992 11.9 10.9 12.3 2016 12.1 11.0 11.3 1993 11.6 10.7 11.5 2017 12.5 11.5 12.1 1994 11.0 10.7 11.2 2018 11.4 11.3 11.1 1995 11.5 10.8 11.3 2019 11.4 11.5 11.1 1996 11.6 11.3 11.6 2020 12.7 12.6 12.5

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 18 l P a g e Figure 3-2. Average Quarterly Exposure from Direct Radiation Figure 3-3. 2020 Average Exposure from Direct Radiation 0

5 10 15 20 25 30 Dose (mR)

Year Indicator Control Outer Ring Roadside Park (Station 064)

Toombs Central School (Station 301) 8 9

10 11 12 13 14 15 Dose (mR)

Indicator Control Outer Ring Roadside Park Toombs Central (Station 064) (Station 301)

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 19 l P a g e 3.3 Biological Media Cs-137 was the only radionuclide analyzed across all three biological mediums. As indicated in Figure 3-4, the Cs-137 activity levels were below the respective MDCs and well below that of the respective RLs for each sample media for both the indicator and control stations.

3.3.1 Milk In accordance with Tables 2-1 and 2-2, milk samples were collected semi-monthly from Station 304 (the state prison dairy) which was a control station located more than 10 miles from the plant. Since 1989, efforts to locate a reliable milk sample source within five miles of the plant have been unsuccessful and the 2020 land census did not identify a milk animal within five miles of the plant.

Gamma isotopic (including I-131 and Cs-137) analyses were performed on each collected milk sample and there were no detectable results for gamma isotopes.

3.3.2 Vegetation In accordance with Tables 2-1 and 2-2, vegetation (forage) samples were collected monthly for gamma isotopic analyses at two indicator locations near the site boundary (Stations 106 and 112) and at one control station located about 21 miles from the plant (Station 416). Cs-137 was detected in both the indicator (average of 15.9 pCi/kg-wet) and control station samples (average of 19.35 pCi/kg-wet). The MDD does not apply since the indicator average is less than that of the control average. The values are well below the MDC and RL for Cs-137 and are therefore not considered as an impact to the environment. Historically, the man-made radionuclide Cs-137 is periodically identified in vegetation samples and is generally attributed to offsite sources (such as weapons testing, Chernobyl, and Fukushima).

While Cs-137 and I-131 were periodically found in vegetation samples during pre-operation, the historical trends and the relationship between the indicator and control stations demonstrate that plant operations were having no adverse impact to the environment. The sample results have consistently been below the MDC and the RL for Cs-137 (80 and 2000 pCi/kg-wet, respectively).

During 2020, outside of Cs-137, no man-made gamma isotopes were detected in any Hatch REMP vegetation samples.

3.3.3 Fish Fish samples were collected in accordance with the ODCM (as indicated in Table 2-1). For the semi-annual collections, the control location (Station 170) was located upriver of the plant intake

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 20 l P a g e structure, and the indicator location (Station 172) was located downriver of the plant discharge structure.

Laboratory analysis did not indicate any radionuclide activity in 2020.

3.3.4 Biological Media Summary There were no statistical differences, trends, or anomalies associated with the 2020 biological media samples when compared to historical data. Figure 3-4 below, details the 2020 Cs-137 concentration compared to the MDC.

Figure 3-4. 2020 Biological Media Average Cs-137 Concentrations 0

20 40 60 80 100 120 140 160 Milk Vegetation Fish Concentration (pCi/kg)

Indicator Control MDC

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 21 l P a g e 3.4 Surface Water Composite river water samples were collected monthly at one upstream control location and at one downstream indicator location (shown on Map A-3 in Appendix A). The details of the sampling protocols are outlined in Tables 2-1 and Table 2-2. A gamma isotopic analysis was conducted on each monthly sample. The monthly aliquots were combined to form quarterly composite samples in order to be analyzed for tritium.

As provided in Table 3-1, there were no positive results during 2020 from the gamma isotopic analysis of the river water samples. Also indicated in Table 3-1, the average tritium concentration found at the indicator station was 82.5 pCi/l which was 49 pCi/l more than the average at the control station (33.5 pCi/l). The difference was less than the calculated MDD of 142 pCi/l, so the difference was not statistically discernible. Figure 3-5 below details the 2020 historical average tritium concentrations in river water.

Figure 3-5. Average Annual Tritium Concentrations in River Water 0

1000 2000 3000 4000 5000 Concentration (pCi/l)

Year Indicator Control MDC

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 22 l P a g e 3.5 Sediment Sediment was collected along the shoreline of the Altamaha River in the spring and fall at the upstream control station (No. 170) and the downstream indicator station (No. 172). A gamma isotopic analysis was performed on each sample. There were no man-made radionuclides detected in sediment samples.

3.6 Interlaboratory Comparison Program In accordance with ODCM 4.1.3, GPCEL participated in an Interlaboratory Comparison Program (ICP) which satisfied the requirements of Regulatory Guide 4.15, Revision 1, "Quality Assurance for Radiological Monitoring Programs (Normal Operations) - Effluent Streams and the Environment", February 1979. The ICP included the required determinations (sample medium/radionuclide combinations) included in the REMP.

The ICP was conducted by Eckert & Ziegler Analytics, Inc. (EZA) of Atlanta, Georgia. EZA has a documented Quality Assurance (QA) program and the capability to prepare Quality Control (QC) materials traceable to the National Institute of Standards and Technology. The ICP is a third-party blind testing program which provided a means to ensure independent checks were performed on the accuracy and precision of the measurements of radioactive materials in environmental sample matrices. EZA supplied the crosscheck samples to GPCEL which performed routine laboratory analyses. Each of the specified analyses was performed three times.

The accuracy of each result was measured by the normalized deviation, which is the ratio of the reported average less the known value to the total error. An investigation was undertaken whenever the absolute value of the normalized deviation was greater than three or whenever the coefficient of variation was greater than 15% for all radionuclides other than Cr-51 and Fe-

59. For Cr-51 and Fe-59, an investigation was undertaken when the coefficient of variation exceeded the values shown on Table 3-6 below:

Table 3-6. Interlaboratory Comparison Limits Nuclide Concentration

Total Sample Activity (pCi)

Percent Coefficient of Variation Cr-51

<300 NA 25 NA

>1000 25

>300

<1000 15 Fe-59

<80 NA 25

>80 NA 15

For air filters, concentration units are pCi/filter. For all other media, concentration units are pCi/liter (pCi/l).

As required by ODCM 4.1.3.3 and 7.1.2.3, a summary of the results of the GPCEL's participation in the ICP is provided in Table 3-7 for:

PLANT HATCH 2020 FNP Annual Radiological Environmental Operating Report 23 l P a g e x gross beta and gamma isotopic analyses of an air filter x gamma isotopic analyses of milk samples x gross beta, tritium and gamma isotopic analyses of water samples The 2020 analyses included tritium, gross beta and gamma emitting radio-nuclides in different matrices. The results for the analyses were within acceptable limits for accuracy and no investigations were required.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 24 l P a g e Table 3-7. Interlaboratory Comparison Summary Analysis or Radionuclide Date Prepared Reported Average Known Value Standard Deviation EL Uncertainty Analytics (3S)

Percent Coefficient of Variation Normalized Deviation I-131 ANALYSIS OF AN AIR CARTRIDGE (pCi/cartridge)

I-131 3/12/2020 95.9 91.2 1.33 1.52 5.21 0.95 GAMMA ISOTOPIC ANALYSIS OF AN AIR FILTER (pCi/filter)

Ce-141 9/10/2020 108 101 3.14 1.69 6.21 1.07 Co-58 126 121 4.97 2.02 5.89 0.71 Co-60 260 255 6.47 4.26 4.49 0.44 Cr-51 273 251 14.8 4.18 8.22 0.99 Cs-134 144 135 6.33 2.25 5.64 1.06 Cs-137 185 168 4.44 2.81 4.71 1.95 Fe-59 140 135 5.80 2.25 6.40 0.59 Mn-54 137 121 3.53 2.03 4.99 2.40 Zn-65 204 182 15.8 3.03 9.13 1.19 GROSS BETA ANALYSIS OF AN AIR FILTER (PCI/FILTER)

Gross Beta 6/4/2020 219 235 6.28 3.93 3.74

-1.95 GAMMA ISOTOPIC ANALYSIS OF A MILK SAMPLE (PCI/LITER)

Co-58 9/10/2020 182 180 4.20 3.00 5.83 0.22 Co-60 381 379 9.46 6.33 4.88 0.09 Cr-51 384 372 16.4 6.21 11.2 0.29 Cs-134 199 200 8.89 3.34 6.27

-0.10 Cs-137 262 250 4.79 4.18 5.16 0.88 Fe-59 202 200 9.38 3.35 7.60 0.11 I-131 99.8 95.0 7.88 1.59 11.4 0.42 Mn-54 189 180 10.3 3.01 7.51 0.66 Zn-65 285 270 14.3 4.51 7.75 0.70 GROSS BETA ANALYSIS OF WATER SAMPLE (PCI/LITER)

Gross Beta 6/4/2020 275 240 15.0 4.01 6.54 1.96 GAMMA ISOTOPIC ANALYSIS OF WATER SAMPLES (PCI/LITER)

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 25 l P a g e Table 3-7. Interlaboratory Comparison Summary Analysis or Radionuclide Date Prepared Reported Average Known Value Standard Deviation EL Uncertainty Analytics (3S)

Percent Coefficient of Variation Normalized Deviation Ce-141 6/4/2020 104 102 3.62 1.70 7.03 0.30 Co-58 199 198 8.46 3.30 6.18

.12 Co-60 287 259 18.3 4.33 12.68

.77 Cr-51 153 148 3.91 2.47 5.07 0.68 Cs-134 115 105 4.66 1.75 7.15 1.24 Cs-137 98.2 102 4.20 1.71 8.60

-0.45 Fe-59 84.2 80.5 4.46 1.34 8.59 0.51 I-131 146 135 3.63 2.26 6.03 1.23 Mn-54 252 227 8.69 3.80 6.84 1.43 Zn-65 122 117 3.58 1.96 7.03 0.60 TRITIUM ANALYSIS OF WATER SAMPLES (PCI/LITER)

H-3 9/10/2020 11700 12000 57.74 201 2.08

-1.38 GAMMA ISOTOPIC ANALYSIS OF VEGETATION SAMPLES (PCI/LITER)

Co-58 6/4/2020 152 159 11.8 2.65 11.2

-0.41 Co-60 291 309 10.4 5.16 6.24

-1.02 Cr-51 431 405 37.8 6.77 19.5 0.31 Cs-134 224 231 9.55 3.86 6.84

-0.45 Cs-137 163 164 7.47 2.74 8.89

-0.07 Fe-59 157 160 10.8 2.67 13.0

-0.15 Mn-54 213 212 13.4 3.53 9.13 0.07 Zn-65 377 355 12.6 5.94 8.71 0.68 Ce-141 192 184 7.53 3.07 8.93 0.44

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 26 l P a g e 3.7 Groundwater To ensure compliance with NEI 07-07 (Industry Ground Water Protection Initiative - Final Guidance Document), Southern Nuclear implemented a groundwater protection program which is procedualized in Nuclear Management Procedure, Radiological Groundwater Protection Program. The procedure contains detailed site-specific monitoring plans, program technical bases, and communications protocol (to ensure that radioactive leaks and spills are addressed and communicated appropriately). In an effort to prevent future leaks of radioactive material to groundwater, SNC plants have established buried piping and tanks inspection programs. The only changes made to the Groundwater Protection Program in 2020 was that monitoring wells LD-1, LD-2, LD-3, LD-4, LD-5, LD-6, LD-7, and LD-8 were installed to monitor water table around CST-2.

Plant Hatch maintained the following wells (Table 3-8), which were sampled at a frequency that satisfied the requirements of NEI 07-07. Table 3-9 contains the results of the Groundwater Protection Program tritium results (in pCi/L). See Map A-4 in Appendix A for well locations.

Table 3-8. Groundwater Monitoring Locations Well Depth (Feet)

Monitoring Purpose R1 82.9 Confined Aquifer Upgradient R2 82.7 Confined Aquifer Near Diesel Generator Bldg.

R3 89.2 Confined Aquifer Near CST-1 R4 41 Dilution Line Near River Water Discharge Structure R5 33.6 Between Subsurface Drain Lines Downgradient R6 38.2 Between Subsurface Drain Lines Downgradient NW2A 27 Water Table Near CST-2 Inside of Subsurface Drain NW2B 27 Water Table Outside of Subsurface Drain NW3A 26.5 Water Table Inside of Subsurface Drain NW3B 25.3 Water Table Outside of Subsurface Drain NW4A 27 Water Table Upgradient Inside of Subsurface Drain NW5A 26.7 Water Table Upgradient Inside of Subsurface Drain NW5B 26.3 Water Table Upgradient Outside of Subsurface Drain NW6 27 Water Table Near Diesel Generator Bldg.

NW8 23 Water Table Near Diesel Generator Bldg.

NW9 26.1 Water Table Downgradient Inside of Subsurface Drain NW10 26.2 Water Table Near CST-2 T3 18 Water Table Near Turbine Bldg.

T7 21.4 Water Table Near Diesel Generator Bldg.

T10 18.8 Water Table Near CST-1 T12 23.2 Water Table Near CST-1 T15 27.4 Water Table Near CST-1

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 27 l P a g e Table 3-8. Groundwater Monitoring Locations Well Depth (Feet)

Monitoring Purpose P15A 74.5 Confined Aquifer Near Turbine Bldg.

P15B 18 Water Table Near Turbine Bldg.

P17A 77 Confined Aquifer Near Diesel Generator Bldg.

P17B 14.8 Water Table Near Diesel Generator Bldg.

Deep Well 1 680 Backup Supply for Potable Water (infrequently used)

Deep Well 2 711 Plant Potable Water Supply Deep Well 3 710 Potable Water Supply - Rec. Center, Firing Range, and Garage NU-21

~60 Confined Aquifer Near CST-1 GW-11 19.6 Water Table downstream of CST-1 (outside CW tunnel boundary)

GW-21 19.7 Water Table downstream of CST-1 (inside CW tunnel boundary)

GW-31 21.0 Water Table downstream of CST-1 (outside CW tunnel boundary)

LD-1 15 Water Table Near CST-2 LD-2 15 Water Table Near CST-2 LD-3 15 Water Table Near CST-2 LD-4 15 Water Table Near CST-2 LD-5 15 Water Table Near CST-2 LD-6 15 Water Table Near CST-2 LD-7 15 Water Table Near CST-2 LD-8 15 Water Table Near CST-2 1Added to the Groundwater Protection Program Table 3-9. Groundwater Protection Program Tritium Results (pCi/L)

Well 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter R1 NS NS 90 173 R2 NS NS NS NS R3 NS 2130 1230 2,510 R4 NDM NS 111 2,480 R5 344 634 758 774 R6 55 NS 236 342 NW2A NS 36,200 23,700 1,302 NW2B NS NS 143 172 NW3A NS NS 160 1,755 NW4A NS NS 189 288 NW5A NS NS NS 198 NW5B NS NS NS 136 NW6 NS NS 122 NS NW8 NS 276 381 561

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 28 l P a g e Table 3-9. Groundwater Protection Program Tritium Results (pCi/L)

Well 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter NW9 NS 181 287 169 NW10 703,000 830,000 717,000 1,088,000 T3 NS 74,800 33,100 27,200 T7 NS 236 285 354 T10 NS NS 2,580 2,862 T12 NS NS 1,340 4,856 T15 NS NS 2,510 2,683 P15A NS NS 88 NS P15B NS 1,490 1,720 NS P17A NS NS NS NS Deep Well 1 NS NS NDM NS Deep Well 2 NS NS NDM NS Deep Well 3 NS NS NS NS NU-2 53,600 57,200 63,000 49,000 GW-1 220 791 730 514 GW-2 263 113 291 324 GW-3 309 228 255 128 LD-1 NS NS NS Dry LD-2 NS NS NS 1,700,000 LD-3 NS NS NS 431,000 LD-4 NS NS NS Dry LD-5 NS NS NS 2,880 LD-6 NS NS NS 406 LD-7 NS NS NS Dry LD-8 NS NS NS 306 NS - No Sample, either due to sample schedule, field conditions (i.e. dry well) or pump OOS (out of service).

NDM - No Detectable Measurement Dry - No water within well column Plant Hatch has had historic tritium leaks into the perched aquifer from around the Unit 1 Condensate Storage Tank (CST), documented on 10 CFR 50.75(g) records. The tritium values in the wells that were found to be elevated above MDC were from previous CST and related piping leaks and were not considered representative of a new release.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 29 l P a g e 4 SURVEY SUMMARIES 4.1 Land Use Census In accordance with ODCM 4.1.2, a land use census was conducted on November 7, 2020 that circumscribed each of the 16 compass sectors within a five-mile radius in order to verify the locations of the nearest radiological receptor. The land use census results are tabulated in Table 4-1. The 2020 land uses census results, shown in Table 4-1, indicated that a revision to the ODCM will not be required.

Table 4-1. Land Use Census Results Sector Residence Milk Animal*

Beef Cattle Garden**

Distance in Miles to the Nearest Location in Each Sector N

2.0 None None 3.8 NNE 2.9 None None None NE 3.3 None 4.7 3.1 ENE 4.2 None 4.1 None E

3.0 None None None ESE 3.8 None None None SE 1.8 None 2.4 None SSE 2.0 None 3.6 2.2 S

1.0 None 2.5 1.0 SSW 1.3 None 2.1 2.5 SW 1.1 None 2.6 1.6 WSW 1.0 None 3.6 2.0 W

1.1 None 2.7 None WNW 1.1 None None None NW 3.6 None 4.5 None NNW 1.8 None 2.8 2.9

A milk animal is a cow or goat producing milk for human consumption.

- A garden of greater than 500 square feet producing broad leaf vegetation.

4.2 Altamaha River Survey A survey of the Altamaha River downstream of the plant for approximately 50 miles (approximately river miles 66.5 to 117.0) was conducted on November 7, 2020 to identify any new withdrawal of water from the river for drinking, irrigation, or construction purposes.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 30 l P a g e Correspondence from the Georgia Environmental Protection Division (EPD) on October 29, 2020, indicated that no new agricultural or drinking water withdrawal permits had been issued at that time.

4.3 Meteorological Report Summary A consultant analyzes the meteorological tower data collected throughout the year and compares it to previous results. In 2020, the meteorological tower results were comparable to previous years, as related to precipitation amounts (52.79) and wind direction (from east-northeast at 10m, from the northeast at 60m, and from the northeast at 100m). Additionally, the meteorological data meets the quality requirements, therefore, no changes to REMP monitoring locations are warranted.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report 31 l P a g e 5 CONCLUSIONS This report has confirmed SNCs conformance with the requirements of Chapter 4 of the ODCM and the objectives were to:

1) Determine the levels of radiation and the concentrations of radioactivity in the environs and;

2) Assess the radiological impact (if any) to the environment due to the operation of the HNP.

Based on the 2020 activities associated with the REMP, SNC offers the following conclusions:

x Samples were collected and there were no deviations or anomalies that negatively affected the quality of the REMP x Land use census and river survey did not require any changes x Analytical results were below reporting levels x These values were consistent with historical results which indicate no adverse radiological environmental impacts associated with the operation of HNP

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report Appendix A APPENDIX A Maps

Legend:

Indicator Staons -

Control Staons -

Other Staons -

Drawn by:

Appendix A Map A-1 C. Groce 5 Miles S

SW W

NW N

NE E

SE April, 202 Edwin I. Hatch Nuclear Plant

Annual Radiological Environmental Report REMP Stations in Plant Vicinity

Legend:

Indicator Staons -

Control Staons -

Other Staons -

Drawn by:

Appendix A Map A-2 C. Groce April, 202 Edwin I. Hatch Nuclear Plant

Annual Radiological Environmental Report REMP Stations within 10 miles

Edwin I. Hatch Nuclear Plant Facility Groundwater Wells Drawn by:

Appendix A Map A-3 C. Groce April, 202

Annual Radiological Environmental Report 100 Sur"cial Aquifer GWPP Well Non-GWPP Well Con"ned Aquifer GWPP Legend Drain Approximaon Leak Detecon Well

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report Appendix B APPENDIX B Errata

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report Appendix B There were no errata for the 2020 report.

PLANT HATCH CH 2020 HNP Annual Radiological Environmental Operating Report Appendix C APPENDIX C Data The following pages contain the individual data points from the 2020 reporting year. The units for the data points varies by media, as follows:

x Airborne Radioiodine and Particulates/Water/Milk - picocuries/liter (pCi/l) x Sediment/Vegetation/Fish - picocuries/kilogram (pCi/kg) x Direct Radiation - millirem (mR)

cust_id profile_name analyte_name cust_sample_id collect_date result result_units lab_sample_id Hatch River Water Fe-59 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Co-58 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Co-60 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Zn-65 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Zr-95 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Nb-95 172 1/7/2020 0

pCi/L 123989002 Hatch River Water K-40 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Mn-54 172 1/7/2020 0

pCi/L 123989002 Hatch River Water I-131 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Cs-134 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Cs-137 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Ba-140 172 1/7/2020 0

pCi/L 123989002 Hatch River Water La-140 172 1/7/2020 0

pCi/L 123989002 Hatch River Water Be-7 172 1/7/2020 0

pCi/L 123989002 Hatch H-3 Water Tritium 172 1/7/2020 207 pCi/L 124162002 Hatch River Water K-40 170 1/7/2020 0

pCi/L 123989001 Hatch H-3 Water Tritium 170 1/7/2020 134 pCi/L 124162001 Hatch River Water Mn-54 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Fe-59 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Co-58 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Co-60 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Zn-65 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Zr-95 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Nb-95 170 1/7/2020 0

pCi/L 123989001 Hatch River Water I-131 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Cs-134 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Cs-137 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Ba-140 170 1/7/2020 0

pCi/L 123989001 Hatch River Water La-140 170 1/7/2020 0

pCi/L 123989001 Hatch River Water Be-7 170 1/7/2020 0

pCi/L 123989001 Hatch Air Filters Gross Beta 112 1/7/2020

.01849 pCi/m3 123994003 Hatch Air Filters Gross Beta 107 1/7/2020

.01954 pCi/m3 123994002 Hatch Air Filters Gross Beta 309 1/7/2020

.01989 pCi/m3 123994006 Hatch Air Filters Gross Beta 304 1/7/2020

.02033 pCi/m3 123994005 Hatch Air Filters Gross Beta 103 1/7/2020

.01883 pCi/m3 123994001 Hatch Air Filters Gross Beta 116 1/7/2020

.01914 pCi/m3 123994004 Hatch Air Filters Gross Beta 116 1/14/2020

.01582 pCi/m3 124113004 Hatch Air Filters Gross Beta 103 1/14/2020

.01244 pCi/m3 124113001 Hatch Milk Gamma Be-7 GSP 1/14/2020 0

pCi/L 124115001 Hatch Milk Gamma La-140 GSP 1/14/2020 0

pCi/L 124115001 Hatch Milk Gamma Ba-140 GSP 1/14/2020 0

pCi/L 124115001 Hatch Milk Gamma Cs-137 GSP 1/14/2020 0

pCi/L 124115001 Hatch Milk Gamma Cs-134 GSP 1/14/2020 0

pCi/L 124115001 Hatch Milk Gamma I-131 GSP 1/14/2020 0

pCi/L 124115001 Hatch Milk Gamma K-40 GSP 1/14/2020 1676.5 pCi/L 124115001 Hatch Air Filters Gross Beta 304 1/14/2020

.01334 pCi/m3 124113005 Hatch Air Filters Gross Beta 309 1/14/2020

.0168 pCi/m3 124113006 Hatch Air Filters Gross Beta 107 1/14/2020

.01171 pCi/m3 124113002 Hatch Air Filters Gross Beta 112 1/14/2020

.01344 pCi/m3 124113003 Hatch Air Filters Gross Beta 116 1/21/2020

.01924 pCi/m3 124166004 Hatch Air Filters Gross Beta 103 1/21/2020

.02136 pCi/m3 124166001 Hatch Air Filters Gross Beta 304 1/21/2020

.02139 pCi/m3 124166005 Hatch Air Filters Gross Beta 309 1/21/2020

.02379 pCi/m3 124166006 Hatch Air Filters Gross Beta 107 1/21/2020

.02359 pCi/m3 124166002 Hatch Air Filters Gross Beta 112 1/21/2020

.02092 pCi/m3 124166003 Hatch Vegetation Cs-134 416 1/28/2020 0

pCi/Kg 124225001 Hatch Vegetation Cs-137 416 1/28/2020 0

pCi/Kg 124225001 Hatch Vegetation Be-7 416 1/28/2020 925.64 pCi/Kg 124225001 Hatch Vegetation K-40 416 1/28/2020 4102.9 pCi/Kg 124225001 Hatch Vegetation I-131 416 1/28/2020 0

pCi/Kg 124225001 Hatch Air Filters Gross Beta 116 1/28/2020

.02021 pCi/m3 124223004 Hatch Air Filters Gross Beta 103 1/28/2020

.02327 pCi/m3 124223001 Hatch Milk Gamma Cs-134 GSP 1/28/2020 0

pCi/L 124226001 Hatch Milk Gamma I-131 GSP 1/28/2020 0

pCi/L 124226001 Hatch Milk Gamma K-40 GSP 1/28/2020 1794.2 pCi/L 124226001 Hatch Milk Gamma Be-7 GSP 1/28/2020 0

pCi/L 124226001 Hatch Milk Gamma La-140 GSP 1/28/2020 0

pCi/L 124226001 Hatch Milk Gamma Ba-140 GSP 1/28/2020 0

pCi/L 124226001 Hatch Milk Gamma Cs-137 GSP 1/28/2020 0

pCi/L 124226001 Hatch Air Filters Gross Beta 304 1/28/2020

.0209 pCi/m3 124223005 Hatch Air Filters Gross Beta 309 1/28/2020

.02212 pCi/m3 124223006 Hatch Air Filters Gross Beta 107 1/28/2020

.02227 pCi/m3 124223002 Hatch Vegetation I-131 106 1/28/2020 0

pCi/Kg 124225003 Hatch Vegetation Cs-134 106 1/28/2020 0

pCi/Kg 124225003 Hatch Vegetation K-40 106 1/28/2020 2049.6 pCi/Kg 124225003 Hatch Vegetation Be-7 106 1/28/2020 4294.8 pCi/Kg 124225003 Hatch Vegetation Cs-137 106 1/28/2020 34.103 pCi/Kg 124225003 Hatch Air Filters Gross Beta 112 1/28/2020

.01946 pCi/m3 124223003 Hatch Vegetation Be-7 112 1/28/2020 809.57 pCi/Kg 124225002 Hatch Vegetation K-40 112 1/28/2020 4258.7 pCi/Kg 124225002 Hatch Vegetation Cs-137 112 1/28/2020 0

pCi/Kg 124225002 Hatch Vegetation Cs-134 112 1/28/2020 0

pCi/Kg 124225002 Hatch Vegetation I-131 112 1/28/2020 0

pCi/Kg 124225002 Hatch Air Filters Gross Beta 116 2/4/2020

.01884 pCi/m3 124297004 Hatch Air Filters Gross Beta 103 2/4/2020

.01835 pCi/m3 124297001 Hatch Air Filters Gross Beta 304 2/4/2020

.01679 pCi/m3 124297005

Hatch Air Filters Gross Beta 309 2/4/2020

.01805 pCi/m3 124297006 Hatch Air Filters Gross Beta 107 2/4/2020

.01709 pCi/m3 124297002 Hatch Air Filters Gross Beta 112 2/4/2020

.01937 pCi/m3 124297003 Hatch River Water Mn-54 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Fe-59 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Co-58 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Co-60 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Zn-65 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Zr-95 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Nb-95 172 2/4/2020 0

pCi/L 124296002 Hatch River Water I-131 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Cs-134 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Cs-137 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Ba-140 172 2/4/2020 0

pCi/L 124296002 Hatch River Water La-140 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Be-7 172 2/4/2020 0

pCi/L 124296002 Hatch River Water K-40 172 2/4/2020 0

pCi/L 124296002 Hatch River Water Nb-95 170 2/4/2020 0

pCi/L 124296001 Hatch River Water I-131 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Cs-134 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Cs-137 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Ba-140 170 2/4/2020 0

pCi/L 124296001 Hatch River Water La-140 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Be-7 170 2/4/2020 0

pCi/L 124296001 Hatch River Water K-40 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Mn-54 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Fe-59 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Co-58 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Co-60 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Zn-65 170 2/4/2020 0

pCi/L 124296001 Hatch River Water Zr-95 170 2/4/2020 0

pCi/L 124296001 Hatch Air Filters Gross Beta 116 2/11/2020

.02077 pCi/m3 124363004 Hatch Air Filters Gross Beta 103 2/11/2020

.01958 pCi/m3 124363001 Hatch Milk Gamma Cs-134 GSP 2/11/2020 0

pCi/L 124362001 Hatch Milk Gamma I-131 GSP 2/11/2020 0

pCi/L 124362001 Hatch Milk Gamma K-40 GSP 2/11/2020 2057 pCi/L 124362001 Hatch Milk Gamma Be-7 GSP 2/11/2020 0

pCi/L 124362001 Hatch Milk Gamma La-140 GSP 2/11/2020 0

pCi/L 124362001 Hatch Milk Gamma Ba-140 GSP 2/11/2020 0

pCi/L 124362001 Hatch Milk Gamma Cs-137 GSP 2/11/2020 0

pCi/L 124362001 Hatch Air Filters Gross Beta 304 2/11/2020

.02102 pCi/m3 124363005 Hatch Air Filters Gross Beta 309 2/11/2020

.02029 pCi/m3 124363006 Hatch Air Filters Gross Beta 107 2/11/2020

.01863 pCi/m3 124363002 Hatch Air Filters Gross Beta 112 2/11/2020

.02025 pCi/m3 124363003 Hatch Air Filters Gross Beta 116 2/18/2020

.01586 pCi/m3 124419004 Hatch Air Filters Gross Beta 103 2/18/2020

.0144 pCi/m3 124419001 Hatch Air Filters Gross Beta 304 2/18/2020

.01404 pCi/m3 124419005 Hatch Air Filters Gross Beta 309 2/18/2020

.01186 pCi/m3 124419006 Hatch Air Filters Gross Beta 107 2/18/2020

.01213 pCi/m3 124419002 Hatch Air Filters Gross Beta 112 2/18/2020

.01331 pCi/m3 124419003 Hatch Vegetation K-40 112 2/24/2020 5258.9 pCi/Kg 124470002 Hatch Vegetation Be-7 112 2/24/2020 2374.6 pCi/Kg 124470002 Hatch Vegetation I-131 112 2/24/2020 0

pCi/Kg 124470002 Hatch Vegetation Cs-134 112 2/24/2020 0

pCi/Kg 124470002 Hatch Vegetation Cs-137 112 2/24/2020 0

pCi/Kg 124470002 Hatch Vegetation Cs-134 416 2/24/2020 0

pCi/Kg 124470001 Hatch Vegetation Cs-137 416 2/24/2020 0

pCi/Kg 124470001 Hatch Vegetation Be-7 416 2/24/2020 3430.7 pCi/Kg 124470001 Hatch Vegetation K-40 416 2/24/2020 6324 pCi/Kg 124470001 Hatch Vegetation I-131 416 2/24/2020 0

pCi/Kg 124470001 Hatch Air Filters Gross Beta 116 2/25/2020

.01809 pCi/m3 124468004 Hatch Air Filters Gross Beta 103 2/25/2020

.01703 pCi/m3 124468001 Hatch Milk Gamma Be-7 GSP 2/25/2020 0

pCi/L 124467001 Hatch Milk Gamma La-140 GSP 2/25/2020 0

pCi/L 124467001 Hatch Milk Gamma Ba-140 GSP 2/25/2020 0

pCi/L 124467001 Hatch Milk Gamma Cs-137 GSP 2/25/2020 0

pCi/L 124467001 Hatch Milk Gamma Cs-134 GSP 2/25/2020 0

pCi/L 124467001 Hatch Milk Gamma I-131 GSP 2/25/2020 0

pCi/L 124467001 Hatch Milk Gamma K-40 GSP 2/25/2020 1564.4 pCi/L 124467001 Hatch Air Filters Gross Beta 304 2/25/2020

.02034 pCi/m3 124468005 Hatch Air Filters Gross Beta 309 2/25/2020

.01467 pCi/m3 124468006 Hatch Air Filters Gross Beta 107 2/25/2020

.01976 pCi/m3 124468002 Hatch Vegetation I-131 106 2/25/2020 0

pCi/Kg 124470003 Hatch Vegetation Cs-137 106 2/25/2020 30.431 pCi/Kg 124470003 Hatch Vegetation Cs-134 106 2/25/2020 0

pCi/Kg 124470003 Hatch Vegetation K-40 106 2/25/2020 2666.234 pCi/Kg 124470003 Hatch Vegetation Be-7 106 2/25/2020 5663.801 pCi/Kg 124470003 Hatch Air Filters Gross Beta 112 2/25/2020

.01717 pCi/m3 124468003 Hatch Air Filters Gross Beta 116 3/3/2020

.01863 pCi/m3 124526004 Hatch Air Filters Gross Beta 103 3/3/2020

.01971 pCi/m3 124526001 Hatch Air Filters Gross Beta 304 3/3/2020

.0162 pCi/m3 124526005 Hatch Air Filters Gross Beta 309 3/3/2020

.01824 pCi/m3 124526006 Hatch Air Filters Gross Beta 107 3/3/2020

.02173 pCi/m3 124526002 Hatch Air Filters Gross Beta 112 3/3/2020

.02029 pCi/m3 124526003 Hatch River Water I-131 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Mn-54 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Fe-59 170 3/3/2020 0

pCi/L 124525001

Hatch River Water Co-58 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Co-60 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Zn-65 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Zr-95 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Nb-95 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Cs-134 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Cs-137 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Ba-140 170 3/3/2020 0

pCi/L 124525001 Hatch River Water La-140 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Be-7 170 3/3/2020 0

pCi/L 124525001 Hatch River Water K-40 170 3/3/2020 0

pCi/L 124525001 Hatch River Water Mn-54 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Fe-59 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Co-58 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Co-60 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Zn-65 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Zr-95 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Nb-95 172 3/3/2020 0

pCi/L 124525002 Hatch River Water I-131 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Cs-134 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Cs-137 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Ba-140 172 3/3/2020 0

pCi/L 124525002 Hatch River Water La-140 172 3/3/2020 0

pCi/L 124525002 Hatch River Water Be-7 172 3/3/2020 0

pCi/L 124525002 Hatch River Water K-40 172 3/3/2020 0

pCi/L 124525002 Hatch Air Filters Gross Beta 116 3/10/2020

.01802 pCi/m3 124598004 Hatch Air Filters Gross Beta 103 3/10/2020

.01507 pCi/m3 124598001 Hatch Milk Gamma K-40 GSP 3/10/2020 1613.052 pCi/L 124600001 Hatch Milk Gamma Be-7 GSP 3/10/2020 0

pCi/L 124600001 Hatch Milk Gamma La-140 GSP 3/10/2020 0

pCi/L 124600001 Hatch Milk Gamma Ba-140 GSP 3/10/2020 0

pCi/L 124600001 Hatch Milk Gamma Cs-137 GSP 3/10/2020 0

pCi/L 124600001 Hatch Milk Gamma Cs-134 GSP 3/10/2020 0

pCi/L 124600001 Hatch Milk Gamma I-131 GSP 3/10/2020 0

pCi/L 124600001 Hatch Air Filters Gross Beta 304 3/10/2020

.01543 pCi/m3 124598005 Hatch Air Filters Gross Beta 309 3/10/2020

.01467 pCi/m3 124598006 Hatch Air Filters Gross Beta 107 3/10/2020

.01535 pCi/m3 124598002 Hatch Air Filters Gross Beta 112 3/10/2020

.01313 pCi/m3 124598003 Hatch Air Filters Gross Beta 116 3/17/2020

.02128 pCi/m3 124681004 Hatch Air Filters Gross Beta 103 3/17/2020

.01785 pCi/m3 124681001 Hatch Air Filters Gross Beta 304 3/17/2020

.01829 pCi/m3 124681005 Hatch Air Filters Gross Beta 309 3/17/2020

.01824 pCi/m3 124681006 Hatch Air Filters Gross Beta 107 3/17/2020

.01879 pCi/m3 124681002 Hatch Air Filters Gross Beta 112 3/17/2020

.01627 pCi/m3 124681003 Hatch Vegetation Cs-134 416 3/23/2020 0

pCi/Kg 124725001 Hatch Vegetation Cs-137 416 3/23/2020 0

pCi/Kg 124725001 Hatch Vegetation Be-7 416 3/23/2020 1388.1 pCi/Kg 124725001 Hatch Vegetation K-40 416 3/23/2020 4896.6 pCi/Kg 124725001 Hatch Vegetation I-131 416 3/23/2020 0

pCi/Kg 124725001 Hatch Air Filters Gross Beta 116 3/24/2020

.01861 pCi/m3 124723004 Hatch Air Filters Gross Beta 103 3/24/2020

.01608 pCi/m3 124723001 Hatch Milk Gamma K-40 GSP 3/24/2020 1080.1 pCi/L 124726001 Hatch Milk Gamma Be-7 GSP 3/24/2020 0

pCi/L 124726001 Hatch Milk Gamma La-140 GSP 3/24/2020 0

pCi/L 124726001 Hatch Milk Gamma Ba-140 GSP 3/24/2020 0

pCi/L 124726001 Hatch Milk Gamma Cs-137 GSP 3/24/2020 0

pCi/L 124726001 Hatch Milk Gamma Cs-134 GSP 3/24/2020 0

pCi/L 124726001 Hatch Milk Gamma I-131 GSP 3/24/2020 0

pCi/L 124726001 Hatch Air Filters Gross Beta 304 3/24/2020

.01361 pCi/m3 124723005 Hatch Air Filters Gross Beta 309 3/24/2020

.0171 pCi/m3 124723006 Hatch Air Filters Gross Beta 107 3/24/2020

.01682 pCi/m3 124723002 Hatch Vegetation K-40 106 3/24/2020 3090.124 pCi/Kg 124725003 Hatch Vegetation Be-7 106 3/24/2020 959.976 pCi/Kg 124725003 Hatch Vegetation Cs-137 106 3/24/2020 55.108 pCi/Kg 124725003 Hatch Vegetation I-131 106 3/24/2020 0

pCi/Kg 124725003 Hatch Vegetation Cs-134 106 3/24/2020 0

pCi/Kg 124725003 Hatch Air Filters Gross Beta 112 3/24/2020

.01711 pCi/m3 124723003 Hatch Vegetation I-131 112 3/24/2020 0

pCi/Kg 124725002 Hatch Vegetation Cs-137 112 3/24/2020 0

pCi/Kg 124725002 Hatch Vegetation K-40 112 3/24/2020 5227 pCi/Kg 124725002 Hatch Vegetation Cs-134 112 3/24/2020 0

pCi/Kg 124725002 Hatch Vegetation Be-7 112 3/24/2020 655.39 pCi/Kg 124725002 Hatch Air Qtr Comp Be-7 116 3/31/2020

.07782 pCi/m3 124828004 Hatch Air Qtr Comp Cs-137 116 3/31/2020 0

pCi/m3 124828004 Hatch Air Qtr Comp Cs-134 116 3/31/2020 0

pCi/m3 124828004 Hatch Air Qtr Comp I-131 116 3/31/2020 0

pCi/m3 124828004 Hatch Air Filters Gross Beta 116 3/31/2020

.02513 pCi/m3 124786004 Hatch Air Qtr Comp Be-7 103 3/31/2020

.07022 pCi/m3 124828001 Hatch Air Filters Gross Beta 103 3/31/2020

.02321 pCi/m3 124786001 Hatch Air Qtr Comp Cs-137 103 3/31/2020 0

pCi/m3 124828001 Hatch Air Qtr Comp Cs-134 103 3/31/2020 0

pCi/m3 124828001 Hatch Air Qtr Comp I-131 103 3/31/2020 0

pCi/m3 124828001 Hatch Air Qtr Comp Be-7 304 3/31/2020

.0903 pCi/m3 124828005 Hatch Air Qtr Comp Cs-137 304 3/31/2020 0

pCi/m3 124828005 Hatch Air Qtr Comp Cs-134 304 3/31/2020 0

pCi/m3 124828005 Hatch Air Qtr Comp I-131 304 3/31/2020 0

pCi/m3 124828005 Hatch Air Filters Gross Beta 304 3/31/2020

.02176 pCi/m3 124786005

Hatch Air Qtr Comp Be-7 309 3/31/2020

.08107 pCi/m3 124828006 Hatch Air Qtr Comp Cs-137 309 3/31/2020 0

pCi/m3 124828006 Hatch Air Qtr Comp Cs-134 309 3/31/2020 0

pCi/m3 124828006 Hatch Air Qtr Comp I-131 309 3/31/2020 0

pCi/m3 124828006 Hatch Air Filters Gross Beta 309 3/31/2020

.02074 pCi/m3 124786006 Hatch Air Qtr Comp I-131 107 3/31/2020 0

pCi/m3 124828002 Hatch Air Qtr Comp Cs-134 107 3/31/2020 0

pCi/m3 124828002 Hatch Air Filters Gross Beta 107 3/31/2020

.01887 pCi/m3 124786002 Hatch Air Qtr Comp Be-7 107 3/31/2020

.08041 pCi/m3 124828002 Hatch Air Qtr Comp Cs-137 107 3/31/2020 0

pCi/m3 124828002 Hatch Air Qtr Comp I-131 112 3/31/2020 0

pCi/m3 124828003 Hatch Air Qtr Comp Cs-134 112 3/31/2020 0

pCi/m3 124828003 Hatch Air Qtr Comp Cs-137 112 3/31/2020 0

pCi/m3 124828003 Hatch Air Filters Gross Beta 112 3/31/2020

.01979 pCi/m3 124786003 Hatch Air Qtr Comp Be-7 112 3/31/2020

.08439 pCi/m3 124828003 Hatch Air Filters Gross Beta 116 4/7/2020

.02316 pCi/m3 124840004 Hatch Air Filters Gross Beta 103 4/7/2020

.02265 pCi/m3 124840001 Hatch Air Filters Gross Beta 304 4/7/2020

.02104 pCi/m3 124840005 Hatch Air Filters Gross Beta 309 4/7/2020

.02224 pCi/m3 124840006 Hatch Air Filters Gross Beta 107 4/7/2020

.02079 pCi/m3 124840002 Hatch Air Filters Gross Beta 112 4/7/2020

.01969 pCi/m3 124840003 Hatch River Water K-40 170 4/7/2020 0

pCi/L 124842001 Hatch H-3 Water Tritium 170 4/7/2020

-52.7 pCi/L 124986001 Hatch River Water I-131 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Cs-134 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Cs-137 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Ba-140 170 4/7/2020 0

pCi/L 124842001 Hatch River Water La-140 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Mn-54 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Fe-59 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Be-7 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Co-58 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Co-60 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Zn-65 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Zr-95 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Nb-95 170 4/7/2020 0

pCi/L 124842001 Hatch River Water Zr-95 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Nb-95 172 4/7/2020 0

pCi/L 124842002 Hatch River Water I-131 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Cs-134 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Cs-137 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Ba-140 172 4/7/2020 0

pCi/L 124842002 Hatch River Water La-140 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Be-7 172 4/7/2020 0

pCi/L 124842002 Hatch River Water K-40 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Co-60 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Zn-65 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Mn-54 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Fe-59 172 4/7/2020 0

pCi/L 124842002 Hatch River Water Co-58 172 4/7/2020 0

pCi/L 124842002 Hatch H-3 Water Tritium 172 4/7/2020 123 pCi/L 124986002 Hatch Air Filters Gross Beta 116 4/14/2020

.0258 pCi/m3 124897004 Hatch Air Filters Gross Beta 103 4/14/2020

.02529 pCi/m3 124897001 Hatch Milk Gamma Ba-140 GSP 4/14/2020 0

pCi/L 124899001 Hatch Milk Gamma Cs-137 GSP 4/14/2020 0

pCi/L 124899001 Hatch Milk Gamma Cs-134 GSP 4/14/2020 0

pCi/L 124899001 Hatch Milk Gamma I-131 GSP 4/14/2020 0

pCi/L 124899001 Hatch Milk Gamma K-40 GSP 4/14/2020 1825.2 pCi/L 124899001 Hatch Milk Gamma Be-7 GSP 4/14/2020 0

pCi/L 124899001 Hatch Milk Gamma La-140 GSP 4/14/2020 0

pCi/L 124899001 Hatch Air Filters Gross Beta 304 4/14/2020

.02531 pCi/m3 124897005 Hatch Air Filters Gross Beta 309 4/14/2020

.02641 pCi/m3 124897006 Hatch Air Filters Gross Beta 107 4/14/2020

.0267 pCi/m3 124897002 Hatch Air Filters Gross Beta 112 4/14/2020

.02471 pCi/m3 124897003 Hatch Air Filters Gross Beta 116 4/21/2020

.02416 pCi/m3 124970004 Hatch Air Filters Gross Beta 103 4/21/2020

.0234 pCi/m3 124970001 Hatch Air Filters Gross Beta 309 4/21/2020

.0203 pCi/m3 124970006 Hatch Air Filters Gross Beta 107 4/21/2020

.02406 pCi/m3 124970002 Hatch Air Filters Gross Beta 112 4/21/2020

.01973 pCi/m3 124970003 Hatch Vegetation Cs-134 416 4/27/2020 0

pCi/Kg 125041001 Hatch Vegetation Cs-137 416 4/27/2020 19.708 pCi/Kg 125041001 Hatch Vegetation Be-7 416 4/27/2020 4327.1 pCi/Kg 125041001 Hatch Vegetation K-40 416 4/27/2020 4338.4 pCi/Kg 125041001 Hatch Vegetation I-131 416 4/27/2020 0

pCi/Kg 125041001 Hatch Air Filters Gross Beta 116 4/28/2020

.02019 pCi/m3 125039004 Hatch Air Filters Gross Beta 103 4/28/2020

.0221 pCi/m3 125039001 Hatch Milk Gamma I-131 GSP 4/28/2020 0

pCi/L 125042001 Hatch Milk Gamma K-40 GSP 4/28/2020 1789.6 pCi/L 125042001 Hatch Milk Gamma Be-7 GSP 4/28/2020 0

pCi/L 125042001 Hatch Milk Gamma La-140 GSP 4/28/2020 0

pCi/L 125042001 Hatch Milk Gamma Ba-140 GSP 4/28/2020 0

pCi/L 125042001 Hatch Milk Gamma Cs-137 GSP 4/28/2020 0

pCi/L 125042001 Hatch Milk Gamma Cs-134 GSP 4/28/2020 0

pCi/L 125042001 Hatch Air Filters Gross Beta 304 4/28/2020

.01865 pCi/m3 125039005 Hatch Air Filters Gross Beta 309 4/28/2020

.02073 pCi/m3 125039006 Hatch Air Filters Gross Beta 107 4/28/2020

.01856 pCi/m3 125039002 Hatch Vegetation I-131 106 4/28/2020 0

pCi/Kg 125041003

Hatch Vegetation Cs-134 106 4/28/2020 0

pCi/Kg 125041003 Hatch Vegetation Cs-137 106 4/28/2020 0

pCi/Kg 125041003 Hatch Vegetation Be-7 106 4/28/2020 2108.6 pCi/Kg 125041003 Hatch Vegetation K-40 106 4/28/2020 3361.7 pCi/Kg 125041003 Hatch Air Filters Gross Beta 112 4/28/2020

.01914 pCi/m3 125039003 Hatch Vegetation I-131 112 4/28/2020 0

pCi/Kg 125041002 Hatch Vegetation K-40 112 4/28/2020 4604.4 pCi/Kg 125041002 Hatch Vegetation Cs-134 112 4/28/2020 0

pCi/Kg 125041002 Hatch Vegetation Cs-137 112 4/28/2020 0

pCi/Kg 125041002 Hatch Vegetation Be-7 112 4/28/2020 3039.3 pCi/Kg 125041002 Hatch Air Filters Gross Beta 116 5/5/2020

.02095 pCi/m3 125102004 Hatch Air Filters Gross Beta 103 5/5/2020

.02352 pCi/m3 125102001 Hatch Air Filters Gross Beta 304 5/5/2020

.02329 pCi/m3 125102005 Hatch Air Filters Gross Beta 309 5/5/2020

.02092 pCi/m3 125102006 Hatch Air Filters Gross Beta 112 5/5/2020

.0236 pCi/m3 125102003 Hatch River Water Zn-65 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Co-60 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Co-58 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Fe-59 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Mn-54 170 5/5/2020 0

pCi/L 125104001 Hatch River Water K-40 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Zr-95 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Nb-95 170 5/5/2020 0

pCi/L 125104001 Hatch River Water I-131 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Cs-134 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Cs-137 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Ba-140 170 5/5/2020 0

pCi/L 125104001 Hatch River Water La-140 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Be-7 170 5/5/2020 0

pCi/L 125104001 Hatch River Water Co-58 172 5/5/2020 0

pCi/L 125104002 Hatch River Water K-40 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Be-7 172 5/5/2020 0

pCi/L 125104002 Hatch River Water La-140 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Ba-140 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Cs-137 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Co-60 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Zn-65 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Zr-95 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Nb-95 172 5/5/2020 0

pCi/L 125104002 Hatch River Water I-131 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Cs-134 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Mn-54 172 5/5/2020 0

pCi/L 125104002 Hatch River Water Fe-59 172 5/5/2020 0

pCi/L 125104002 Hatch Air Filters Gross Beta 116 5/12/2020

.02343 pCi/m3 125167004 Hatch Air Filters Gross Beta 103 5/12/2020

.02661 pCi/m3 125167001 Hatch Milk Gamma Cs-134 GSP 5/12/2020 0

pCi/L 125162001 Hatch Milk Gamma I-131 GSP 5/12/2020 0

pCi/L 125162001 Hatch Milk Gamma Cs-137 GSP 5/12/2020 0

pCi/L 125162001 Hatch Milk Gamma K-40 GSP 5/12/2020 1563.3 pCi/L 125162001 Hatch Milk Gamma Be-7 GSP 5/12/2020 0

pCi/L 125162001 Hatch Milk Gamma La-140 GSP 5/12/2020 0

pCi/L 125162001 Hatch Milk Gamma Ba-140 GSP 5/12/2020 0

pCi/L 125162001 Hatch Air Filters Gross Beta 304 5/12/2020

.02106 pCi/m3 125167005 Hatch Air Filters Gross Beta 309 5/12/2020

.02374 pCi/m3 125167006 Hatch Air Filters Gross Beta 107 5/12/2020

.02488 pCi/m3 125167002 Hatch Air Filters Gross Beta 112 5/12/2020

.0216 pCi/m3 125167003 Hatch Fish Co-60 172 Bass 5/18/2020 0

pCi/Kg 125235003 Hatch Fish Co-58 172 Bass 5/18/2020 0

pCi/Kg 125235003 Hatch Fish Fe-59 172 Bass 5/18/2020 0

pCi/Kg 125235003 Hatch Fish Mn-54 172 Bass 5/18/2020 0

pCi/Kg 125235003 Hatch Fish K-40 172 Bass 5/18/2020 3613 pCi/Kg 125235003 Hatch Fish Be-7 172 Bass 5/18/2020 0

pCi/Kg 125235003 Hatch Fish Cs-137 172 Bass 5/18/2020 0

pCi/Kg 125235003 Hatch Fish Cs-134 172 Bass 5/18/2020 0

pCi/Kg 125235003 Hatch Fish Zn-65 172 Bass 5/18/2020 0

pCi/Kg 125235003 Hatch Fish Fe-59 172 Carp 5/18/2020 0

pCi/Kg 125235004 Hatch Fish Co-58 172 Carp 5/18/2020 0

pCi/Kg 125235004 Hatch Fish Co-60 172 Carp 5/18/2020 0

pCi/Kg 125235004 Hatch Fish Zn-65 172 Carp 5/18/2020 0

pCi/Kg 125235004 Hatch Fish Cs-134 172 Carp 5/18/2020 0

pCi/Kg 125235004 Hatch Fish Cs-137 172 Carp 5/18/2020 0

pCi/Kg 125235004 Hatch Fish Be-7 172 Carp 5/18/2020 0

pCi/Kg 125235004 Hatch Fish K-40 172 Carp 5/18/2020 3183.2 pCi/Kg 125235004 Hatch Fish Mn-54 172 Carp 5/18/2020 0

pCi/Kg 125235004 Hatch Fish Be-7 170 Bass 5/18/2020 0

pCi/Kg 125235001 Hatch Fish Cs-137 170 Bass 5/18/2020 0

pCi/Kg 125235001 Hatch Fish Cs-134 170 Bass 5/18/2020 0

pCi/Kg 125235001 Hatch Fish Zn-65 170 Bass 5/18/2020 0

pCi/Kg 125235001 Hatch Fish Co-60 170 Bass 5/18/2020 0

pCi/Kg 125235001 Hatch Fish Co-58 170 Bass 5/18/2020 0

pCi/Kg 125235001 Hatch Fish Fe-59 170 Bass 5/18/2020 0

pCi/Kg 125235001 Hatch Fish Mn-54 170 Bass 5/18/2020 0

pCi/Kg 125235001 Hatch Fish K-40 170 Bass 5/18/2020 3352.7 pCi/Kg 125235001 Hatch Fish Zn-65 170 Carp 5/18/2020 0

pCi/Kg 125235002 Hatch Fish Cs-134 170 Carp 5/18/2020 0

pCi/Kg 125235002 Hatch Fish Cs-137 170 Carp 5/18/2020 0

pCi/Kg 125235002 Hatch Fish Be-7 170 Carp 5/18/2020 0

pCi/Kg 125235002

Hatch Fish K-40 170 Carp 5/18/2020 2771.9 pCi/Kg 125235002 Hatch Fish Mn-54 170 Carp 5/18/2020 0

pCi/Kg 125235002 Hatch Fish Fe-59 170 Carp 5/18/2020 0

pCi/Kg 125235002 Hatch Fish Co-58 170 Carp 5/18/2020 0

pCi/Kg 125235002 Hatch Fish Co-60 170 Carp 5/18/2020 0

pCi/Kg 125235002 Hatch Air Filters Gross Beta 116 5/19/2020

.01816 pCi/m3 125219004 Hatch Air Filters Gross Beta 103 5/19/2020

.01891 pCi/m3 125219001 Hatch Air Filters Gross Beta 304 5/19/2020

.01751 pCi/m3 125219005 Hatch Air Filters Gross Beta 309 5/19/2020

.01774 pCi/m3 125219006 Hatch Air Filters Gross Beta 107 5/19/2020

.01779 pCi/m3 125219002 Hatch Air Filters Gross Beta 112 5/19/2020

.01643 pCi/m3 125219003 Hatch Sediment Cs-137 170 5/19/2020 0

pCi/Kg 125229001 Hatch Sediment Cs-134 170 5/19/2020 0

pCi/Kg 125229001 Hatch Sediment Co-60 170 5/19/2020 0

pCi/Kg 125229001 Hatch Sediment Co-58 170 5/19/2020 0

pCi/Kg 125229001 Hatch Sediment K-40 170 5/19/2020 3844.9 pCi/Kg 125229001 Hatch Sediment Be-7 170 5/19/2020 0

pCi/Kg 125229001 Hatch Sediment Cs-137 172 5/19/2020 0

pCi/Kg 125229002 Hatch Sediment Cs-134 172 5/19/2020 0

pCi/Kg 125229002 Hatch Sediment Co-60 172 5/19/2020 0

pCi/Kg 125229002 Hatch Sediment Co-58 172 5/19/2020 0

pCi/Kg 125229002 Hatch Sediment K-40 172 5/19/2020 11458 pCi/Kg 125229002 Hatch Sediment Be-7 172 5/19/2020 1518.1 pCi/Kg 125229002 Hatch Air Filters Gross Beta 112 5/26/2020

.02262 pCi/m3 125261003 Hatch Vegetation Be-7 112 5/26/2020 1602 pCi/Kg 125263002 Hatch Vegetation K-40 112 5/26/2020 3533.2 pCi/Kg 125263002 Hatch Vegetation I-131 112 5/26/2020 0

pCi/Kg 125263002 Hatch Vegetation Cs-134 112 5/26/2020 0

pCi/Kg 125263002 Hatch Vegetation Cs-137 112 5/26/2020 0

pCi/Kg 125263002 Hatch Vegetation Cs-134 106 5/26/2020 0

pCi/Kg 125263003 Hatch Vegetation Cs-137 106 5/26/2020 51.576 pCi/Kg 125263003 Hatch Vegetation Be-7 106 5/26/2020 1997.6 pCi/Kg 125263003 Hatch Vegetation K-40 106 5/26/2020 2230.6 pCi/Kg 125263003 Hatch Vegetation I-131 106 5/26/2020 0

pCi/Kg 125263003 Hatch Air Filters Gross Beta 107 5/26/2020

.02197 pCi/m3 125261002 Hatch Air Filters Gross Beta 309 5/26/2020

.02362 pCi/m3 125261006 Hatch Air Filters Gross Beta 304 5/26/2020

.02227 pCi/m3 125261005 Hatch Milk Gamma K-40 GSP 5/26/2020 1507 pCi/L 125260001 Hatch Milk Gamma Be-7 GSP 5/26/2020 0

pCi/L 125260001 Hatch Milk Gamma La-140 GSP 5/26/2020 0

pCi/L 125260001 Hatch Milk Gamma Ba-140 GSP 5/26/2020 0

pCi/L 125260001 Hatch Milk Gamma Cs-137 GSP 5/26/2020 0

pCi/L 125260001 Hatch Milk Gamma Cs-134 GSP 5/26/2020 0

pCi/L 125260001 Hatch Milk Gamma I-131 GSP 5/26/2020 0

pCi/L 125260001 Hatch Air Filters Gross Beta 103 5/26/2020

.02356 pCi/m3 125261001 Hatch Air Filters Gross Beta 116 5/26/2020

.02036 pCi/m3 125261004 Hatch Vegetation Cs-134 416 5/26/2020 0

pCi/Kg 125263001 Hatch Vegetation Cs-137 416 5/26/2020 0

pCi/Kg 125263001 Hatch Vegetation Be-7 416 5/26/2020 2193.9 pCi/Kg 125263001 Hatch Vegetation K-40 416 5/26/2020 3969.2 pCi/Kg 125263001 Hatch Vegetation I-131 416 5/26/2020 0

pCi/Kg 125263001 Hatch Air Filters Gross Beta 116 6/2/2020

.0162 pCi/m3 125328004 Hatch Air Filters Gross Beta 103 6/2/2020

.01789 pCi/m3 125328001 Hatch Air Filters Gross Beta 304 6/2/2020

.01535 pCi/m3 125328005 Hatch Air Filters Gross Beta 309 6/2/2020

.01814 pCi/m3 125328006 Hatch Air Filters Gross Beta 107 6/2/2020

.01946 pCi/m3 125328002 Hatch Air Filters Gross Beta 112 6/2/2020

.01414 pCi/m3 125328003 Hatch River Water Fe-59 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Co-58 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Co-60 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Zn-65 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Zr-95 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Nb-95 170 6/2/2020 0

pCi/L 125325001 Hatch River Water I-131 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Cs-134 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Cs-137 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Ba-140 170 6/2/2020 0

pCi/L 125325001 Hatch River Water La-140 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Be-7 170 6/2/2020 0

pCi/L 125325001 Hatch River Water K-40 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Mn-54 170 6/2/2020 0

pCi/L 125325001 Hatch River Water Fe-59 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Co-58 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Co-60 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Zn-65 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Zr-95 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Nb-95 172 6/2/2020 0

pCi/L 125325002 Hatch River Water I-131 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Cs-134 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Cs-137 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Ba-140 172 6/2/2020 0

pCi/L 125325002 Hatch River Water La-140 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Be-7 172 6/2/2020 0

pCi/L 125325002 Hatch River Water K-40 172 6/2/2020 0

pCi/L 125325002 Hatch River Water Mn-54 172 6/2/2020 0

pCi/L 125325002 Hatch Air Filters Gross Beta 116 6/9/2020

.01756 pCi/m3 125383004 Hatch Air Filters Gross Beta 103 6/9/2020

.01863 pCi/m3 125383001

Hatch Milk Gamma Be-7 GSP 6/9/2020 0

pCi/L 125380001 Hatch Milk Gamma La-140 GSP 6/9/2020 0

pCi/L 125380001 Hatch Milk Gamma Ba-140 GSP 6/9/2020 0

pCi/L 125380001 Hatch Milk Gamma Cs-137 GSP 6/9/2020 0

pCi/L 125380001 Hatch Milk Gamma Cs-134 GSP 6/9/2020 0

pCi/L 125380001 Hatch Milk Gamma I-131 GSP 6/9/2020 0

pCi/L 125380001 Hatch Milk Gamma K-40 GSP 6/9/2020 1285.8 pCi/L 125380001 Hatch Air Filters Gross Beta 304 6/9/2020

.02147 pCi/m3 125383005 Hatch Air Filters Gross Beta 309 6/9/2020

.01921 pCi/m3 125383006 Hatch Air Filters Gross Beta 107 6/9/2020

.01673 pCi/m3 125383002 Hatch Air Filters Gross Beta 112 6/9/2020

.01812 pCi/m3 125383003 Hatch Air Filters Gross Beta 116 6/16/2020

.01723 pCi/m3 125434004 Hatch Air Filters Gross Beta 103 6/16/2020

.01714 pCi/m3 125434001 Hatch Air Filters Gross Beta 304 6/16/2020

.01745 pCi/m3 125434005 Hatch Air Filters Gross Beta 309 6/16/2020

.01536 pCi/m3 125434006 Hatch Air Filters Gross Beta 107 6/16/2020

.01699 pCi/m3 125434002 Hatch Air Filters Gross Beta 112 6/16/2020

.0138 pCi/m3 125434003 Hatch Vegetation Cs-134 416 6/22/2020 0

pCi/Kg 125475001 Hatch Vegetation Cs-137 416 6/22/2020 49.79 pCi/Kg 125475001 Hatch Vegetation Be-7 416 6/22/2020 1626.4 pCi/Kg 125475001 Hatch Vegetation K-40 416 6/22/2020 4249.2 pCi/Kg 125475001 Hatch Vegetation I-131 416 6/22/2020 0

pCi/Kg 125475001 Hatch Air Filters Gross Beta 116 6/23/2020

.02101 pCi/m3 125491004 Hatch Air Filters Gross Beta 103 6/23/2020

.02167 pCi/m3 125491001 Hatch Milk Gamma K-40 GSP 6/23/2020 908.9 pCi/L 125474001 Hatch Milk Gamma Be-7 GSP 6/23/2020 0

pCi/L 125474001 Hatch Milk Gamma La-140 GSP 6/23/2020 0

pCi/L 125474001 Hatch Milk Gamma Ba-140 GSP 6/23/2020 0

pCi/L 125474001 Hatch Milk Gamma Cs-137 GSP 6/23/2020 0

pCi/L 125474001 Hatch Milk Gamma Cs-134 GSP 6/23/2020 0

pCi/L 125474001 Hatch Milk Gamma I-131 GSP 6/23/2020 0

pCi/L 125474001 Hatch Air Filters Gross Beta 304 6/23/2020

.01971 pCi/m3 125491005 Hatch Air Filters Gross Beta 309 6/23/2020

.02268 pCi/m3 125491006 Hatch Air Filters Gross Beta 107 6/23/2020

.02097 pCi/m3 125491002 Hatch Vegetation I-131 106 6/23/2020 0

pCi/Kg 125475003 Hatch Vegetation Cs-134 106 6/23/2020 0

pCi/Kg 125475003 Hatch Vegetation Cs-137 106 6/23/2020 40.439 pCi/Kg 125475003 Hatch Vegetation Be-7 106 6/23/2020 1350.6 pCi/Kg 125475003 Hatch Vegetation K-40 106 6/23/2020 3004.9 pCi/Kg 125475003 Hatch Air Filters Gross Beta 112 6/23/2020

.01954 pCi/m3 125491003 Hatch Vegetation Cs-137 112 6/23/2020 0

pCi/Kg 125475002 Hatch Vegetation Cs-134 112 6/23/2020 0

pCi/Kg 125475002 Hatch Vegetation I-131 112 6/23/2020 0

pCi/Kg 125475002 Hatch Vegetation Be-7 112 6/23/2020 1143.9 pCi/Kg 125475002 Hatch Vegetation K-40 112 6/23/2020 4869.7 pCi/Kg 125475002 Hatch Air Qtr Comp Cs-134 116 6/29/2020 0

pCi/m3 125783004 Hatch Air Qtr Comp Cs-137 116 6/29/2020 0

pCi/m3 125783004 Hatch Air Qtr Comp Be-7 116 6/29/2020

.1067 pCi/m3 125783004 Hatch Air Filters Gross Beta 116 6/29/2020

.02122 pCi/m3 125568004 Hatch Air Qtr Comp I-131 116 6/29/2020 0

pCi/m3 125783004 Hatch Air Qtr Comp Cs-134 103 6/29/2020 0

pCi/m3 125783001 Hatch Air Qtr Comp I-131 103 6/29/2020 0

pCi/m3 125783001 Hatch Air Filters Gross Beta 103 6/29/2020

.01988 pCi/m3 125568001 Hatch Air Qtr Comp Cs-137 103 6/29/2020 0

pCi/m3 125783001 Hatch Air Qtr Comp Be-7 103 6/29/2020

.08709 pCi/m3 125783001 Hatch Air Qtr Comp Cs-137 304 6/29/2020 0

pCi/m3 125783005 Hatch Air Qtr Comp Cs-134 304 6/29/2020 0

pCi/m3 125783005 Hatch Air Filters Gross Beta 304 6/29/2020

.02221 pCi/m3 125568005 Hatch Air Qtr Comp I-131 304 6/29/2020 0

pCi/m3 125783005 Hatch Air Qtr Comp Be-7 304 6/29/2020

.06709 pCi/m3 125783005 Hatch Air Qtr Comp I-131 309 6/29/2020 0

pCi/m3 125783006 Hatch Air Qtr Comp Cs-134 309 6/29/2020 0

pCi/m3 125783006 Hatch Air Qtr Comp Cs-137 309 6/29/2020 0

pCi/m3 125783006 Hatch Air Qtr Comp Be-7 309 6/29/2020

.08902 pCi/m3 125783006 Hatch Air Filters Gross Beta 309 6/29/2020

.02224 pCi/m3 125568006 Hatch Air Filters Gross Beta 107 6/29/2020

.0217 pCi/m3 125568002 Hatch Air Qtr Comp I-131 107 6/29/2020 0

pCi/m3 125783002 Hatch Air Qtr Comp Cs-134 107 6/29/2020 0

pCi/m3 125783002 Hatch Air Qtr Comp Cs-137 107 6/29/2020 0

pCi/m3 125783002 Hatch Air Qtr Comp Be-7 107 6/29/2020

.1135 pCi/m3 125783002 Hatch Air Qtr Comp Be-7 112 6/29/2020

.08217 pCi/m3 125783003 Hatch Air Qtr Comp Cs-137 112 6/29/2020 0

pCi/m3 125783003 Hatch Air Qtr Comp Cs-134 112 6/29/2020 0

pCi/m3 125783003 Hatch Air Qtr Comp I-131 112 6/29/2020 0

pCi/m3 125783003 Hatch Air Filters Gross Beta 112 6/29/2020

.01643 pCi/m3 125568003 Hatch Air Filters Gross Beta 116 7/6/2020

.02071 pCi/m3 125602004 Hatch Air Filters Gross Beta 103 7/6/2020

.01596 pCi/m3 125602001 Hatch Air Filters Gross Beta 304 7/6/2020

.02055 pCi/m3 125602005 Hatch Air Filters Gross Beta 309 7/6/2020

.02034 pCi/m3 125602006 Hatch Air Filters Gross Beta 107 7/6/2020

.0207 pCi/m3 125602002 Hatch Air Filters Gross Beta 112 7/6/2020

.01588 pCi/m3 125602003 Hatch River Water Ba-140 172 7/7/2020 0

pCi/L 125604002 Hatch River Water La-140 172 7/7/2020 0

pCi/L 125604002 Hatch River Water Be-7 172 7/7/2020 0

pCi/L 125604002 Hatch River Water K-40 172 7/7/2020 0

pCi/L 125604002 Hatch River Water Mn-54 172 7/7/2020 0

pCi/L 125604002 Hatch River Water Fe-59 172 7/7/2020 0

pCi/L 125604002

Hatch River Water Co-58 172 7/7/2020 0

pCi/L 125604002 Hatch River Water Co-60 172 7/7/2020 0

pCi/L 125604002 Hatch River Water Zn-65 172 7/7/2020 0

pCi/L 125604002 Hatch River Water Zr-95 172 7/7/2020 0

pCi/L 125604002 Hatch River Water Nb-95 172 7/7/2020 0

pCi/L 125604002 Hatch River Water I-131 172 7/7/2020 0

pCi/L 125604002 Hatch River Water Cs-134 172 7/7/2020 0

pCi/L 125604002 Hatch H-3 Water Tritium 172 7/7/2020 0

pCi/L 125731002 Hatch River Water Cs-137 172 7/7/2020 0

pCi/L 125604002 Hatch River Water Co-60 170 7/7/2020 0

pCi/L 125604001 Hatch River Water Zn-65 170 7/7/2020 0

pCi/L 125604001 Hatch River Water Zr-95 170 7/7/2020 0

pCi/L 125604001 Hatch River Water Nb-95 170 7/7/2020 0

pCi/L 125604001 Hatch River Water I-131 170 7/7/2020 0

pCi/L 125604001 Hatch River Water Cs-134 170 7/7/2020 0

pCi/L 125604001 Hatch River Water Cs-137 170 7/7/2020 0

pCi/L 125604001 Hatch River Water Ba-140 170 7/7/2020 0

pCi/L 125604001 Hatch River Water La-140 170 7/7/2020 0

pCi/L 125604001 Hatch River Water Be-7 170 7/7/2020 0

pCi/L 125604001 Hatch River Water K-40 170 7/7/2020 0

pCi/L 125604001 Hatch H-3 Water Tritium 170 7/7/2020 0

pCi/L 125731001 Hatch River Water Mn-54 170 7/7/2020 0

pCi/L 125604001 Hatch River Water Fe-59 170 7/7/2020 0

pCi/L 125604001 Hatch River Water Co-58 170 7/7/2020 0

pCi/L 125604001 Hatch Air Filters Gross Beta 116 7/14/2020

.01368 pCi/m3 125666004 Hatch Air Filters Gross Beta 103 7/14/2020

.01493 pCi/m3 125666001 Hatch Milk Gamma Cs-134 GSP 7/14/2020 0

pCi/L 125668001 Hatch Milk Gamma Cs-137 GSP 7/14/2020 0

pCi/L 125668001 Hatch Milk Gamma Ba-140 GSP 7/14/2020 0

pCi/L 125668001 Hatch Milk Gamma La-140 GSP 7/14/2020 0

pCi/L 125668001 Hatch Milk Gamma Be-7 GSP 7/14/2020 0

pCi/L 125668001 Hatch Milk Gamma K-40 GSP 7/14/2020 691.22 pCi/L 125668001 Hatch Milk Gamma I-131 GSP 7/14/2020 0

pCi/L 125668001 Hatch Air Filters Gross Beta 304 7/14/2020

.01663 pCi/m3 125666005 Hatch Air Filters Gross Beta 309 7/14/2020

.01649 pCi/m3 125666006 Hatch Air Filters Gross Beta 107 7/14/2020

.01706 pCi/m3 125666002 Hatch Air Filters Gross Beta 112 7/14/2020

.01794 pCi/m3 125666003 Hatch Air Filters Gross Beta 116 7/21/2020

.02527 pCi/m3 125779004 Hatch Air Filters Gross Beta 103 7/21/2020

.02326 pCi/m3 125779001 Hatch Air Filters Gross Beta 304 7/21/2020

.02716 pCi/m3 125779005 Hatch Air Filters Gross Beta 309 7/21/2020

.02418 pCi/m3 125779006 Hatch Air Filters Gross Beta 107 7/21/2020

.026 pCi/m3 125779002 Hatch Air Filters Gross Beta 112 7/21/2020

.02617 pCi/m3 125779003 Hatch Vegetation I-131 416 7/27/2020 0

pCi/Kg 125862001 Hatch Vegetation Cs-134 416 7/27/2020 0

pCi/Kg 125862001 Hatch Vegetation Cs-137 416 7/27/2020 0

pCi/Kg 125862001 Hatch Vegetation Be-7 416 7/27/2020 727.3 pCi/Kg 125862001 Hatch Vegetation K-40 416 7/27/2020 3744.9 pCi/Kg 125862001 Hatch Air Filters Gross Beta 116 7/28/2020

.01483 pCi/m3 125888004 Hatch Air Filters Gross Beta 103 7/28/2020

.01265 pCi/m3 125888001 Hatch Milk Gamma I-131 GSP 7/28/2020 0

pCi/L 125860001 Hatch Milk Gamma Cs-134 GSP 7/28/2020 0

pCi/L 125860001 Hatch Milk Gamma Cs-137 GSP 7/28/2020 0

pCi/L 125860001 Hatch Milk Gamma Ba-140 GSP 7/28/2020 0

pCi/L 125860001 Hatch Milk Gamma La-140 GSP 7/28/2020 0

pCi/L 125860001 Hatch Milk Gamma Be-7 GSP 7/28/2020 0

pCi/L 125860001 Hatch Milk Gamma K-40 GSP 7/28/2020 1224.2 pCi/L 125860001 Hatch Air Filters Gross Beta 304 7/28/2020

.01275 pCi/m3 125888005 Hatch Air Filters Gross Beta 309 7/28/2020

.01549 pCi/m3 125888006 Hatch Air Filters Gross Beta 107 7/28/2020

.01114 pCi/m3 125888002 Hatch Vegetation I-131 106 7/28/2020 0

pCi/Kg 125862003 Hatch Vegetation Cs-134 106 7/28/2020 0

pCi/Kg 125862003 Hatch Vegetation Cs-137 106 7/28/2020 56.74 pCi/Kg 125862003 Hatch Vegetation Be-7 106 7/28/2020 2072 pCi/Kg 125862003 Hatch Vegetation K-40 106 7/28/2020 3696.2 pCi/Kg 125862003 Hatch Air Filters Gross Beta 112 7/28/2020

.01315 pCi/m3 125888003 Hatch Vegetation Cs-134 112 7/28/2020 0

pCi/Kg 125862002 Hatch Vegetation I-131 112 7/28/2020 0

pCi/Kg 125862002 Hatch Vegetation K-40 112 7/28/2020 3976.4 pCi/Kg 125862002 Hatch Vegetation Cs-137 112 7/28/2020 0

pCi/Kg 125862002 Hatch Vegetation Be-7 112 7/28/2020 1683.6 pCi/Kg 125862002 Hatch Air Filters Gross Beta 116 8/4/2020

.01876 pCi/m3 125967004 Hatch Air Filters Gross Beta 103 8/4/2020

.02075 pCi/m3 125967001 Hatch Air Filters Gross Beta 304 8/4/2020

.02191 pCi/m3 125967005 Hatch Air Filters Gross Beta 309 8/4/2020

.02464 pCi/m3 125967006 Hatch Air Filters Gross Beta 107 8/4/2020

.02277 pCi/m3 125967002 Hatch Air Filters Gross Beta 112 8/4/2020

.01923 pCi/m3 125967003 Hatch River Water Nb-95 170 8/4/2020 0

pCi/L 125964001 Hatch River Water K-40 170 8/4/2020 0

pCi/L 125964001 Hatch River Water Mn-54 170 8/4/2020 0

pCi/L 125964001 Hatch River Water Fe-59 170 8/4/2020 0

pCi/L 125964001 Hatch River Water Co-58 170 8/4/2020 0

pCi/L 125964001 Hatch River Water Co-60 170 8/4/2020 0

pCi/L 125964001 Hatch River Water Zn-65 170 8/4/2020 0

pCi/L 125964001 Hatch River Water Zr-95 170 8/4/2020 0

pCi/L 125964001 Hatch River Water I-131 170 8/4/2020 0

pCi/L 125964001 Hatch River Water Cs-134 170 8/4/2020 0

pCi/L 125964001

Hatch River Water Cs-137 170 8/4/2020 0

pCi/L 125964001 Hatch River Water Ba-140 170 8/4/2020 0

pCi/L 125964001 Hatch River Water La-140 170 8/4/2020 0

pCi/L 125964001 Hatch River Water Be-7 170 8/4/2020 0

pCi/L 125964001 Hatch River Water I-131 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Cs-134 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Cs-137 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Ba-140 172 8/4/2020 0

pCi/L 125964002 Hatch River Water La-140 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Be-7 172 8/4/2020 0

pCi/L 125964002 Hatch River Water K-40 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Mn-54 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Fe-59 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Co-58 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Co-60 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Zn-65 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Zr-95 172 8/4/2020 0

pCi/L 125964002 Hatch River Water Nb-95 172 8/4/2020 0

pCi/L 125964002 Hatch Air Filters Gross Beta 116 8/10/2020

.02343 pCi/m3 126051004 Hatch Air Filters Gross Beta 103 8/10/2020

.01719 pCi/m3 126051001 Hatch Air Filters Gross Beta 304 8/10/2020

.01594 pCi/m3 126051005 Hatch Air Filters Gross Beta 309 8/10/2020

.01845 pCi/m3 126051006 Hatch Air Filters Gross Beta 107 8/10/2020

.01774 pCi/m3 126051002 Hatch Air Filters Gross Beta 112 8/10/2020

.02179 pCi/m3 126051003 Hatch Milk Gamma La-140 GSP 8/11/2020 0

pCi/L 126049001 Hatch Milk Gamma Ba-140 GSP 8/11/2020 0

pCi/L 126049001 Hatch Milk Gamma Cs-137 GSP 8/11/2020 0

pCi/L 126049001 Hatch Milk Gamma Cs-134 GSP 8/11/2020 0

pCi/L 126049001 Hatch Milk Gamma I-131 GSP 8/11/2020 0

pCi/L 126049001 Hatch Milk Gamma K-40 GSP 8/11/2020 1737.7 pCi/L 126049001 Hatch Milk Gamma Be-7 GSP 8/11/2020 0

pCi/L 126049001 Hatch Air Filters Gross Beta 116 8/17/2020

.02457 pCi/m3 126178004 Hatch Air Filters Gross Beta 103 8/17/2020

.025 pCi/m3 126178001 Hatch Air Filters Gross Beta 304 8/17/2020

.02333 pCi/m3 126178005 Hatch Air Filters Gross Beta 309 8/17/2020

.02137 pCi/m3 126178006 Hatch Air Filters Gross Beta 107 8/17/2020

.02466 pCi/m3 126178002 Hatch Air Filters Gross Beta 112 8/17/2020

.03632 pCi/m3 126178003 Hatch Vegetation Cs-134 106 8/24/2020 0

pCi/Kg 126264003 Hatch Vegetation Cs-137 106 8/24/2020 0

pCi/Kg 126264003 Hatch Vegetation Be-7 106 8/24/2020 2055.7 pCi/Kg 126264003 Hatch Vegetation K-40 106 8/24/2020 2369.3 pCi/Kg 126264003 Hatch Vegetation I-131 106 8/24/2020 0

pCi/Kg 126264003 Hatch Air Filters Gross Beta 107 8/24/2020

.02053 pCi/m3 126272002 Hatch Vegetation Cs-134 112 8/24/2020 0

pCi/Kg 126264002 Hatch Vegetation K-40 112 8/24/2020 3667.2 pCi/Kg 126264002 Hatch Vegetation Be-7 112 8/24/2020 2241.5 pCi/Kg 126264002 Hatch Vegetation I-131 112 8/24/2020 0

pCi/Kg 126264002 Hatch Vegetation Cs-137 112 8/24/2020 0

pCi/Kg 126264002 Hatch Air Filters Gross Beta 309 8/24/2020

.01769 pCi/m3 126272005 Hatch Air Filters Gross Beta 304 8/24/2020

.01765 pCi/m3 126272004 Hatch Air Filters Gross Beta 103 8/24/2020

.02022 pCi/m3 126272001 Hatch Air Filters Gross Beta 116 8/24/2020

.02483 pCi/m3 126272003 Hatch Vegetation Cs-134 416 8/24/2020 0

pCi/Kg 126264001 Hatch Vegetation Cs-137 416 8/24/2020 34.822 pCi/Kg 126264001 Hatch Vegetation Be-7 416 8/24/2020 2132.4 pCi/Kg 126264001 Hatch Vegetation K-40 416 8/24/2020 4013.7 pCi/Kg 126264001 Hatch Vegetation I-131 416 8/24/2020 0

pCi/Kg 126264001 Hatch Milk Gamma K-40 GSP 8/25/2020 1741.3 pCi/L 126263001 Hatch Milk Gamma Be-7 GSP 8/25/2020 0

pCi/L 126263001 Hatch Milk Gamma La-140 GSP 8/25/2020 0

pCi/L 126263001 Hatch Milk Gamma Ba-140 GSP 8/25/2020 0

pCi/L 126263001 Hatch Milk Gamma Cs-137 GSP 8/25/2020 0

pCi/L 126263001 Hatch Milk Gamma Cs-134 GSP 8/25/2020 0

pCi/L 126263001 Hatch Milk Gamma I-131 GSP 8/25/2020 0

pCi/L 126263001 Hatch River Water Cs-134 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Cs-137 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Ba-140 172 8/31/2020 0

pCi/L 126340002 Hatch River Water La-140 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Be-7 172 8/31/2020 0

pCi/L 126340002 Hatch River Water K-40 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Mn-54 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Fe-59 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Co-58 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Co-60 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Zn-65 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Zr-95 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Nb-95 172 8/31/2020 0

pCi/L 126340002 Hatch River Water I-131 172 8/31/2020 0

pCi/L 126340002 Hatch River Water Nb-95 170 8/31/2020 0

pCi/L 126340001 Hatch River Water I-131 170 8/31/2020 0

pCi/L 126340001 Hatch River Water Cs-134 170 8/31/2020 0

pCi/L 126340001 Hatch River Water Cs-137 170 8/31/2020 0

pCi/L 126340001 Hatch River Water Ba-140 170 8/31/2020 0

pCi/L 126340001 Hatch River Water La-140 170 8/31/2020 0

pCi/L 126340001 Hatch River Water Be-7 170 8/31/2020 0

pCi/L 126340001 Hatch River Water K-40 170 8/31/2020 0

pCi/L 126340001 Hatch River Water Mn-54 170 8/31/2020 0

pCi/L 126340001

Hatch River Water Fe-59 170 8/31/2020 0

pCi/L 126340001 Hatch River Water Co-58 170 8/31/2020 0

pCi/L 126340001 Hatch River Water Co-60 170 8/31/2020 0

pCi/L 126340001 Hatch River Water Zn-65 170 8/31/2020 0

pCi/L 126340001 Hatch River Water Zr-95 170 8/31/2020 0

pCi/L 126340001 Hatch Air Filters Gross Beta 116 8/31/2020

.01701 pCi/m3 126343004 Hatch Air Filters Gross Beta 103 8/31/2020

.01644 pCi/m3 126343001 Hatch Air Filters Gross Beta 304 8/31/2020

.01632 pCi/m3 126343005 Hatch Air Filters Gross Beta 309 8/31/2020

.01399 pCi/m3 126343006 Hatch Air Filters Gross Beta 107 8/31/2020

.01892 pCi/m3 126343002 Hatch Air Filters Gross Beta 112 8/31/2020

.01548 pCi/m3 126343003 Hatch Air Filters Gross Beta 116 9/8/2020

.02903 pCi/m3 126433004 Hatch Air Filters Gross Beta 103 9/8/2020

.02761 pCi/m3 126433001 Hatch Milk Gamma Be-7 GSP 9/8/2020 0

pCi/L 126414001 Hatch Milk Gamma La-140 GSP 9/8/2020 0

pCi/L 126414001 Hatch Milk Gamma Ba-140 GSP 9/8/2020 0

pCi/L 126414001 Hatch Milk Gamma Cs-137 GSP 9/8/2020 0

pCi/L 126414001 Hatch Milk Gamma Cs-134 GSP 9/8/2020 0

pCi/L 126414001 Hatch Milk Gamma I-131 GSP 9/8/2020 0

pCi/L 126414001 Hatch Milk Gamma K-40 GSP 9/8/2020 1759 pCi/L 126414001 Hatch Air Filters Gross Beta 304 9/8/2020

.02721 pCi/m3 126433005 Hatch Air Filters Gross Beta 309 9/8/2020

.02661 pCi/m3 126433006 Hatch Air Filters Gross Beta 107 9/8/2020

.02991 pCi/m3 126433002 Hatch Air Filters Gross Beta 112 9/8/2020

.0268 pCi/m3 126433003 Hatch Air Filters Gross Beta 116 9/14/2020

.01491 pCi/m3 126498004 Hatch Air Filters Gross Beta 103 9/14/2020

.01594 pCi/m3 126498001 Hatch Air Filters Gross Beta 304 9/14/2020

.01517 pCi/m3 126498005 Hatch Air Filters Gross Beta 309 9/14/2020

.01719 pCi/m3 126498006 Hatch Air Filters Gross Beta 107 9/14/2020

.01424 pCi/m3 126498002 Hatch Air Filters Gross Beta 112 9/14/2020

.0117 pCi/m3 126498003 Hatch Air Filters Gross Beta 116 9/22/2020

.01994 pCi/m3 126680004 Hatch Air Filters Gross Beta 103 9/22/2020

.01638 pCi/m3 126680001 Hatch Milk Gamma Ba-140 GSP 9/22/2020 0

pCi/L 126676001 Hatch Milk Gamma Cs-137 GSP 9/22/2020 0

pCi/L 126676001 Hatch Milk Gamma Cs-134 GSP 9/22/2020 0

pCi/L 126676001 Hatch Milk Gamma I-131 GSP 9/22/2020 0

pCi/L 126676001 Hatch Milk Gamma K-40 GSP 9/22/2020 1753.5 pCi/L 126676001 Hatch Milk Gamma Be-7 GSP 9/22/2020 0

pCi/L 126676001 Hatch Milk Gamma La-140 GSP 9/22/2020 0

pCi/L 126676001 Hatch Air Filters Gross Beta 304 9/22/2020

.01975 pCi/m3 126680005 Hatch Air Filters Gross Beta 309 9/22/2020

.01777 pCi/m3 126680006 Hatch Air Filters Gross Beta 107 9/22/2020

.0201 pCi/m3 126680002 Hatch Air Filters Gross Beta 112 9/22/2020

.01901 pCi/m3 126680003 Hatch Air Qtr Comp I-131 116 9/28/2020 0

pCi/m3 126933004 Hatch Air Qtr Comp Cs-134 116 9/28/2020 0

pCi/m3 126933004 Hatch Air Filters Gross Beta 116 9/28/2020

.01798 pCi/m3 126757004 Hatch Air Qtr Comp Be-7 116 9/28/2020

.07002 pCi/m3 126933004 Hatch Air Qtr Comp Cs-137 116 9/28/2020 0

pCi/m3 126933004 Hatch Air Qtr Comp Cs-137 103 9/28/2020 0

pCi/m3 126933001 Hatch Air Qtr Comp Cs-134 103 9/28/2020 0

pCi/m3 126933001 Hatch Air Filters Gross Beta 103 9/28/2020

.02014 pCi/m3 126757001 Hatch Air Qtr Comp I-131 103 9/28/2020 0

pCi/m3 126933001 Hatch Air Qtr Comp Be-7 103 9/28/2020

.08519 pCi/m3 126933001 Hatch Air Qtr Comp I-131 304 9/28/2020 0

pCi/m3 126933005 Hatch Air Qtr Comp Cs-134 304 9/28/2020 0

pCi/m3 126933005 Hatch Air Qtr Comp Cs-137 304 9/28/2020 0

pCi/m3 126933005 Hatch Air Qtr Comp Be-7 304 9/28/2020

.07049 pCi/m3 126933005 Hatch Air Filters Gross Beta 304 9/28/2020

.01826 pCi/m3 126757005 Hatch Air Qtr Comp I-131 309 9/28/2020 0

pCi/m3 126933006 Hatch Air Qtr Comp Cs-137 309 9/28/2020 0

pCi/m3 126933006 Hatch Air Qtr Comp Cs-134 309 9/28/2020 0

pCi/m3 126933006 Hatch Air Filters Gross Beta 309 9/28/2020

.01601 pCi/m3 126757006 Hatch Air Qtr Comp Be-7 309 9/28/2020

.08701 pCi/m3 126933006 Hatch Air Qtr Comp Cs-137 107 9/28/2020 0

pCi/m3 126933002 Hatch Air Qtr Comp Cs-134 107 9/28/2020 0

pCi/m3 126933002 Hatch Air Filters Gross Beta 107 9/28/2020

.02181 pCi/m3 126757002 Hatch Air Qtr Comp I-131 107 9/28/2020 0

pCi/m3 126933002 Hatch Air Qtr Comp Be-7 107 9/28/2020

.07505 pCi/m3 126933002 Hatch Vegetation I-131 106 9/28/2020 0

pCi/Kg 126759003 Hatch Vegetation Cs-134 106 9/28/2020 0

pCi/Kg 126759003 Hatch Vegetation Cs-137 106 9/28/2020 28.851 pCi/Kg 126759003 Hatch Vegetation Be-7 106 9/28/2020 3049.2 pCi/Kg 126759003 Hatch Vegetation K-40 106 9/28/2020 3887.3 pCi/Kg 126759003 Hatch Air Qtr Comp Be-7 112 9/28/2020

.06217 pCi/m3 126933003 Hatch Air Qtr Comp Cs-137 112 9/28/2020 0

pCi/m3 126933003 Hatch Air Qtr Comp Cs-134 112 9/28/2020 0

pCi/m3 126933003 Hatch Air Qtr Comp I-131 112 9/28/2020 0

pCi/m3 126933003 Hatch Air Filters Gross Beta 112 9/28/2020

.01759 pCi/m3 126757003 Hatch Vegetation I-131 112 9/28/2020 0

pCi/Kg 126759002 Hatch Vegetation Cs-134 112 9/28/2020 0

pCi/Kg 126759002 Hatch Vegetation Cs-137 112 9/28/2020 0

pCi/Kg 126759002 Hatch Vegetation Be-7 112 9/28/2020 2019.5 pCi/Kg 126759002 Hatch Vegetation K-40 112 9/28/2020 3610.4 pCi/Kg 126759002 Hatch Vegetation I-131 416 9/28/2020 0

pCi/Kg 126759001 Hatch Vegetation Cs-134 416 9/28/2020 0

pCi/Kg 126759001 Hatch Vegetation Cs-137 416 9/28/2020 79.977 pCi/Kg 126759001 Hatch Vegetation Be-7 416 9/28/2020 2280 pCi/Kg 126759001

Hatch Vegetation K-40 416 9/28/2020 3699.8 pCi/Kg 126759001 Hatch Air Filters Gross Beta 116 10/5/2020

.02282 pCi/m3 126835004 Hatch Air Filters Gross Beta 103 10/5/2020

.02301 pCi/m3 126835001 Hatch Air Filters Gross Beta 304 10/5/2020

.02756 pCi/m3 126835005 Hatch Air Filters Gross Beta 309 10/5/2020

.02323 pCi/m3 126835006 Hatch Air Filters Gross Beta 107 10/5/2020

.02431 pCi/m3 126835002 Hatch Air Filters Gross Beta 112 10/5/2020

.02394 pCi/m3 126835003 Hatch H-3 Water Tritium 172 10/6/2020 0

pCi/L 127004002 Hatch River Water I-131 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Cs-134 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Cs-137 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Ba-140 172 10/6/2020 0

pCi/L 126866002 Hatch River Water La-140 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Be-7 172 10/6/2020 0

pCi/L 126866002 Hatch River Water K-40 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Fe-59 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Mn-54 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Co-58 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Co-60 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Zn-65 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Zr-95 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Nb-95 172 10/6/2020 0

pCi/L 126866002 Hatch River Water Co-60 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Zn-65 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Zr-95 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Nb-95 170 10/6/2020 0

pCi/L 126866001 Hatch River Water I-131 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Cs-134 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Cs-137 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Ba-140 170 10/6/2020 0

pCi/L 126866001 Hatch River Water La-140 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Be-7 170 10/6/2020 0

pCi/L 126866001 Hatch River Water K-40 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Mn-54 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Fe-59 170 10/6/2020 0

pCi/L 126866001 Hatch River Water Co-58 170 10/6/2020 0

pCi/L 126866001 Hatch H-3 Water Tritium 170 10/6/2020 0

pCi/L 127004001 Hatch Air Filters Gross Beta 116 10/13/2020

.0226 pCi/m3 126935004 Hatch Air Filters Gross Beta 103 10/13/2020

.01823 pCi/m3 126935001 Hatch Milk Gamma K-40 GSP 10/13/2020 1605.5 pCi/L 126937001 Hatch Milk Gamma Be-7 GSP 10/13/2020 0

pCi/L 126937001 Hatch Milk Gamma La-140 GSP 10/13/2020 0

pCi/L 126937001 Hatch Milk Gamma Ba-140 GSP 10/13/2020 0

pCi/L 126937001 Hatch Milk Gamma Cs-137 GSP 10/13/2020 0

pCi/L 126937001 Hatch Milk Gamma Cs-134 GSP 10/13/2020 0

pCi/L 126937001 Hatch Milk Gamma I-131 GSP 10/13/2020 0

pCi/L 126937001 Hatch Air Filters Gross Beta 304 10/13/2020

.02138 pCi/m3 126935005 Hatch Air Filters Gross Beta 309 10/13/2020

.02008 pCi/m3 126935006 Hatch Air Filters Gross Beta 107 10/13/2020

.02731 pCi/m3 126935002 Hatch Air Filters Gross Beta 112 10/13/2020

.02009 pCi/m3 126935003 Hatch Air Filters Gross Beta 116 10/19/2020

.03824 pCi/m3 126997004 Hatch Air Filters Gross Beta 103 10/19/2020

.03257 pCi/m3 126997001 Hatch Air Filters Gross Beta 304 10/19/2020

.03395 pCi/m3 126997005 Hatch Air Filters Gross Beta 309 10/19/2020

.03243 pCi/m3 126997006 Hatch Air Filters Gross Beta 107 10/19/2020

.03564 pCi/m3 126997002 Hatch Air Filters Gross Beta 112 10/19/2020

.0321 pCi/m3 126997003 Hatch Air Filters Gross Beta 116 10/26/2020

.01365 pCi/m3 127087004 Hatch Air Filters Gross Beta 103 10/26/2020

.01477 pCi/m3 127087001 Hatch Air Filters Gross Beta 304 10/26/2020

.01514 pCi/m3 127087005 Hatch Vegetation Cs-134 106 10/26/2020 0

pCi/Kg 127089003 Hatch Vegetation Cs-137 106 10/26/2020 50.081 pCi/Kg 127089003 Hatch Vegetation Be-7 106 10/26/2020 4211 pCi/Kg 127089003 Hatch Vegetation K-40 106 10/26/2020 3554 pCi/Kg 127089003 Hatch Vegetation I-131 106 10/26/2020 0

pCi/Kg 127089003 Hatch Air Filters Gross Beta 309 10/26/2020

.01304 pCi/m3 127087006 Hatch Fish K-40 170 Bass 10/26/2020 3505.2 pCi/Kg 127079001 Hatch Fish Be-7 170 Bass 10/26/2020 0

pCi/Kg 127079001 Hatch Fish Cs-137 170 Bass 10/26/2020 0

pCi/Kg 127079001 Hatch Fish Cs-134 170 Bass 10/26/2020 0

pCi/Kg 127079001 Hatch Fish Zn-65 170 Bass 10/26/2020 0

pCi/Kg 127079001 Hatch Fish Co-60 170 Bass 10/26/2020 0

pCi/Kg 127079001 Hatch Fish Co-58 170 Bass 10/26/2020 0

pCi/Kg 127079001 Hatch Fish Fe-59 170 Bass 10/26/2020 0

pCi/Kg 127079001 Hatch Fish Mn-54 170 Bass 10/26/2020 0

pCi/Kg 127079001 Hatch Fish Mn-54 170 Sucker 10/26/2020 0

pCi/Kg 127079002 Hatch Fish Fe-59 170 Sucker 10/26/2020 0

pCi/Kg 127079002 Hatch Fish Co-58 170 Sucker 10/26/2020 0

pCi/Kg 127079002 Hatch Fish Co-60 170 Sucker 10/26/2020 0

pCi/Kg 127079002 Hatch Fish Zn-65 170 Sucker 10/26/2020 0

pCi/Kg 127079002 Hatch Fish Cs-134 170 Sucker 10/26/2020 0

pCi/Kg 127079002 Hatch Fish Cs-137 170 Sucker 10/26/2020 0

pCi/Kg 127079002 Hatch Fish Be-7 170 Sucker 10/26/2020 0

pCi/Kg 127079002 Hatch Fish K-40 170 Sucker 10/26/2020 3871 pCi/Kg 127079002 Hatch Air Filters Gross Beta 107 10/26/2020

.01248 pCi/m3 127087002 Hatch Air Filters Gross Beta 112 10/26/2020

.01338 pCi/m3 127087003 Hatch Vegetation I-131 112 10/26/2020 0

pCi/Kg 127089002 Hatch Vegetation Cs-134 112 10/26/2020 0

pCi/Kg 127089002

Hatch Vegetation Cs-137 112 10/26/2020 0

pCi/Kg 127089002 Hatch Vegetation K-40 112 10/26/2020 3379.6 pCi/Kg 127089002 Hatch Vegetation Be-7 112 10/26/2020 3854 pCi/Kg 127089002 Hatch Fish Fe-59 172 Bass 10/26/2020 0

pCi/Kg 127079003 Hatch Fish Mn-54 172 Bass 10/26/2020 0

pCi/Kg 127079003 Hatch Fish K-40 172 Bass 10/26/2020 3849.1 pCi/Kg 127079003 Hatch Fish Be-7 172 Bass 10/26/2020 0

pCi/Kg 127079003 Hatch Fish Cs-137 172 Bass 10/26/2020 0

pCi/Kg 127079003 Hatch Fish Cs-134 172 Bass 10/26/2020 0

pCi/Kg 127079003 Hatch Fish Zn-65 172 Bass 10/26/2020 0

pCi/Kg 127079003 Hatch Fish Co-60 172 Bass 10/26/2020 0

pCi/Kg 127079003 Hatch Fish Co-58 172 Bass 10/26/2020 0

pCi/Kg 127079003 Hatch Fish Mn-54 172 Carp 10/26/2020 0

pCi/Kg 127079004 Hatch Fish Cs-134 172 Carp 10/26/2020 0

pCi/Kg 127079004 Hatch Fish Cs-137 172 Carp 10/26/2020 0

pCi/Kg 127079004 Hatch Fish Be-7 172 Carp 10/26/2020 0

pCi/Kg 127079004 Hatch Fish K-40 172 Carp 10/26/2020 3306.6 pCi/Kg 127079004 Hatch Fish Fe-59 172 Carp 10/26/2020 0

pCi/Kg 127079004 Hatch Fish Co-58 172 Carp 10/26/2020 0

pCi/Kg 127079004 Hatch Fish Co-60 172 Carp 10/26/2020 0

pCi/Kg 127079004 Hatch Fish Zn-65 172 Carp 10/26/2020 0

pCi/Kg 127079004 Hatch Fish Mn-54 172 Sucker 10/26/2020 0

pCi/Kg 127079005 Hatch Fish Fe-59 172 Sucker 10/26/2020 0

pCi/Kg 127079005 Hatch Fish Co-58 172 Sucker 10/26/2020 0

pCi/Kg 127079005 Hatch Fish Co-60 172 Sucker 10/26/2020 0

pCi/Kg 127079005 Hatch Fish Zn-65 172 Sucker 10/26/2020 0

pCi/Kg 127079005 Hatch Fish Cs-134 172 Sucker 10/26/2020 0

pCi/Kg 127079005 Hatch Fish Cs-137 172 Sucker 10/26/2020 0

pCi/Kg 127079005 Hatch Fish Be-7 172 Sucker 10/26/2020 0

pCi/Kg 127079005 Hatch Fish K-40 172 Sucker 10/26/2020 2948.5 pCi/Kg 127079005 Hatch Vegetation K-40 416 10/26/2020 5003.5 pCi/Kg 127089001 Hatch Vegetation Be-7 416 10/26/2020 2325.9 pCi/Kg 127089001 Hatch Vegetation Cs-137 416 10/26/2020 0

pCi/Kg 127089001 Hatch Vegetation Cs-134 416 10/26/2020 0

pCi/Kg 127089001 Hatch Vegetation I-131 416 10/26/2020 0

pCi/Kg 127089001 Hatch Milk Gamma K-40 GSP 10/27/2020 1494.1 pCi/L 127080001 Hatch Milk Gamma Be-7 GSP 10/27/2020 0

pCi/L 127080001 Hatch Milk Gamma La-140 GSP 10/27/2020 0

pCi/L 127080001 Hatch Milk Gamma Ba-140 GSP 10/27/2020 0

pCi/L 127080001 Hatch Milk Gamma Cs-137 GSP 10/27/2020 0

pCi/L 127080001 Hatch Milk Gamma Cs-134 GSP 10/27/2020 0

pCi/L 127080001 Hatch Milk Gamma I-131 GSP 10/27/2020 0

pCi/L 127080001 Hatch Air Filters Gross Beta 116 11/2/2020

.02002 pCi/m3 127136004 Hatch Air Filters Gross Beta 103 11/2/2020

.0194 pCi/m3 127136001 Hatch Air Filters Gross Beta 304 11/2/2020

.01882 pCi/m3 127136005 Hatch Air Filters Gross Beta 309 11/2/2020

.01629 pCi/m3 127136006 Hatch Air Filters Gross Beta 107 11/2/2020

.01909 pCi/m3 127136002 Hatch Air Filters Gross Beta 112 11/2/2020

.01959 pCi/m3 127136003 Hatch River Water Nb-95 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Zr-95 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Zn-65 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Co-60 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Co-58 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Fe-59 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Be-7 170 11/3/2020 0

pCi/L 127138001 Hatch River Water K-40 170 11/3/2020 0

pCi/L 127138001 Hatch River Water I-131 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Cs-134 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Cs-137 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Ba-140 170 11/3/2020 0

pCi/L 127138001 Hatch River Water La-140 170 11/3/2020 0

pCi/L 127138001 Hatch River Water Mn-54 170 11/3/2020 0

pCi/L 127138001 Hatch Sediment Be-7 170 11/3/2020 168.56 pCi/Kg 127139001 Hatch Sediment Cs-137 170 11/3/2020 0

pCi/Kg 127139001 Hatch Sediment Cs-134 170 11/3/2020 0

pCi/Kg 127139001 Hatch Sediment Co-60 170 11/3/2020 0

pCi/Kg 127139001 Hatch Sediment Co-58 170 11/3/2020 0

pCi/Kg 127139001 Hatch Sediment K-40 170 11/3/2020 3906.8 pCi/Kg 127139001 Hatch Sediment Be-7 172 11/3/2020 0

pCi/Kg 127139002 Hatch Sediment Cs-137 172 11/3/2020 0

pCi/Kg 127139002 Hatch Sediment Cs-134 172 11/3/2020 0

pCi/Kg 127139002 Hatch Sediment Co-60 172 11/3/2020 0

pCi/Kg 127139002 Hatch Sediment Co-58 172 11/3/2020 0

pCi/Kg 127139002 Hatch Sediment K-40 172 11/3/2020 4412.9 pCi/Kg 127139002 Hatch River Water Mn-54 172 11/3/2020 0

pCi/L 127138002 Hatch River Water Fe-59 172 11/3/2020 0

pCi/L 127138002 Hatch River Water Co-58 172 11/3/2020 0

pCi/L 127138002 Hatch River Water Co-60 172 11/3/2020 0

pCi/L 127138002 Hatch River Water Zn-65 172 11/3/2020 0

pCi/L 127138002 Hatch River Water Zr-95 172 11/3/2020 0

pCi/L 127138002 Hatch River Water Nb-95 172 11/3/2020 0

pCi/L 127138002 Hatch River Water I-131 172 11/3/2020 0

pCi/L 127138002 Hatch River Water K-40 172 11/3/2020 0

pCi/L 127138002 Hatch River Water Be-7 172 11/3/2020 0

pCi/L 127138002 Hatch River Water La-140 172 11/3/2020 0

pCi/L 127138002 Hatch River Water Ba-140 172 11/3/2020 0

pCi/L 127138002 Hatch River Water Cs-137 172 11/3/2020 0

pCi/L 127138002

Hatch River Water Cs-134 172 11/3/2020 0

pCi/L 127138002 Hatch Air Filters Gross Beta 116 11/10/2020

.02452 pCi/m3 127220004 Hatch Air Filters Gross Beta 103 11/10/2020

.02156 pCi/m3 127220001 Hatch Milk Gamma Be-7 GSP 11/10/2020 0

pCi/L 127222001 Hatch Milk Gamma La-140 GSP 11/10/2020 0

pCi/L 127222001 Hatch Milk Gamma Ba-140 GSP 11/10/2020 0

pCi/L 127222001 Hatch Milk Gamma Cs-137 GSP 11/10/2020 0

pCi/L 127222001 Hatch Milk Gamma Cs-134 GSP 11/10/2020 0

pCi/L 127222001 Hatch Milk Gamma I-131 GSP 11/10/2020 0

pCi/L 127222001 Hatch Milk Gamma K-40 GSP 11/10/2020 1974.2 pCi/L 127222001 Hatch Air Filters Gross Beta 304 11/10/2020

.01606 pCi/m3 127220005 Hatch Air Filters Gross Beta 309 11/10/2020

.01938 pCi/m3 127220006 Hatch Air Filters Gross Beta 107 11/10/2020

.02129 pCi/m3 127220002 Hatch Air Filters Gross Beta 112 11/10/2020

.02129 pCi/m3 127220003 Hatch Air Filters Gross Beta 116 11/16/2020

.0175 pCi/m3 127350004 Hatch Air Filters Gross Beta 103 11/16/2020

.01653 pCi/m3 127350001 Hatch Air Filters Gross Beta 304 11/16/2020

.01847 pCi/m3 127350005 Hatch Air Filters Gross Beta 309 11/16/2020

.01903 pCi/m3 127350006 Hatch Air Filters Gross Beta 107 11/16/2020

.02081 pCi/m3 127350002 Hatch Air Filters Gross Beta 112 11/16/2020

.01766 pCi/m3 127350003 Hatch Air Filters Gross Beta 116 11/23/2020

.0223 pCi/m3 127394004 Hatch Air Filters Gross Beta 103 11/23/2020

.02012 pCi/m3 127394001 Hatch Air Filters Gross Beta 304 11/23/2020

.01982 pCi/m3 127394005 Hatch Air Filters Gross Beta 309 11/23/2020

.01765 pCi/m3 127394006 Hatch Air Filters Gross Beta 107 11/23/2020

.01696 pCi/m3 127394002 Hatch Vegetation I-131 106 11/23/2020 0

pCi/Kg 127396003 Hatch Vegetation Cs-134 106 11/23/2020 0

pCi/Kg 127396003 Hatch Vegetation Cs-137 106 11/23/2020 0

pCi/Kg 127396003 Hatch Vegetation Be-7 106 11/23/2020 6633.4 pCi/Kg 127396003 Hatch Vegetation K-40 106 11/23/2020 3457.2 pCi/Kg 127396003 Hatch Air Filters Gross Beta 112 11/23/2020

.01786 pCi/m3 127394003 Hatch Vegetation K-40 112 11/23/2020 2539.8 pCi/Kg 127396002 Hatch Vegetation Cs-137 112 11/23/2020 0

pCi/Kg 127396002 Hatch Vegetation Be-7 112 11/23/2020 2887.1 pCi/Kg 127396002 Hatch Vegetation Cs-134 112 11/23/2020 0

pCi/Kg 127396002 Hatch Vegetation I-131 112 11/23/2020 0

pCi/Kg 127396002 Hatch Vegetation K-40 416 11/23/2020 3612.9 pCi/Kg 127396001 Hatch Vegetation Be-7 416 11/23/2020 2624.1 pCi/Kg 127396001 Hatch Vegetation Cs-137 416 11/23/2020 47.848 pCi/Kg 127396001 Hatch Vegetation Cs-134 416 11/23/2020 0

pCi/Kg 127396001 Hatch Vegetation I-131 416 11/23/2020 0

pCi/Kg 127396001 Hatch Milk Gamma K-40 GSP 11/24/2020 793.35 pCi/L 127390001 Hatch Milk Gamma Be-7 GSP 11/24/2020 0

pCi/L 127390001 Hatch Milk Gamma La-140 GSP 11/24/2020 0

pCi/L 127390001 Hatch Milk Gamma Ba-140 GSP 11/24/2020 0

pCi/L 127390001 Hatch Milk Gamma Cs-137 GSP 11/24/2020 0

pCi/L 127390001 Hatch Milk Gamma Cs-134 GSP 11/24/2020 0

pCi/L 127390001 Hatch Milk Gamma I-131 GSP 11/24/2020 0

pCi/L 127390001 Hatch Air Filters Gross Beta 309 11/30/2020

.0237 pCi/m3 127481006 Hatch Air Filters Gross Beta 107 11/30/2020

.02557 pCi/m3 127481002 Hatch Air Filters Gross Beta 103 11/30/2020

.02949 pCi/m3 127481001 Hatch Air Filters Gross Beta 304 11/30/2020

.0299 pCi/m3 127481005 Hatch Air Filters Gross Beta 116 11/30/2020

.02821 pCi/m3 127481004 Hatch Air Filters Gross Beta 112 11/30/2020

.02365 pCi/m3 127481003 Hatch River Water Fe-59 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Co-58 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Co-60 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Zn-65 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Zr-95 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Nb-95 170 12/1/2020 0

pCi/L 127476001 Hatch River Water I-131 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Cs-134 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Cs-137 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Ba-140 170 12/1/2020 0

pCi/L 127476001 Hatch River Water La-140 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Be-7 170 12/1/2020 0

pCi/L 127476001 Hatch River Water K-40 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Mn-54 170 12/1/2020 0

pCi/L 127476001 Hatch River Water Mn-54 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Fe-59 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Co-58 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Co-60 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Zn-65 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Zr-95 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Nb-95 172 12/1/2020 0

pCi/L 127476002 Hatch River Water I-131 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Cs-134 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Cs-137 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Ba-140 172 12/1/2020 0

pCi/L 127476002 Hatch River Water Be-7 172 12/1/2020 0

pCi/L 127476002 Hatch River Water K-40 172 12/1/2020 111.79 pCi/L 127476002 Hatch River Water La-140 172 12/1/2020 0

pCi/L 127476002 Hatch Air Filters Gross Beta 116 12/7/2020

.02938 pCi/m3 127583004 Hatch Air Filters Gross Beta 103 12/7/2020

.03064 pCi/m3 127583001 Hatch Air Filters Gross Beta 304 12/7/2020

.0293 pCi/m3 127583005 Hatch Air Filters Gross Beta 309 12/7/2020

.03051 pCi/m3 127583006 Hatch Air Filters Gross Beta 107 12/7/2020

.03173 pCi/m3 127583002

Hatch Air Filters Gross Beta 112 12/7/2020

.0302 pCi/m3 127583003 Hatch Milk Gamma Cs-137 GSP 12/8/2020 0

pCi/L 127585001 Hatch Milk Gamma Cs-134 GSP 12/8/2020 0

pCi/L 127585001 Hatch Milk Gamma I-131 GSP 12/8/2020 0

pCi/L 127585001 Hatch Milk Gamma K-40 GSP 12/8/2020 1393.2 pCi/L 127585001 Hatch Milk Gamma Be-7 GSP 12/8/2020 0

pCi/L 127585001 Hatch Milk Gamma La-140 GSP 12/8/2020 0

pCi/L 127585001 Hatch Milk Gamma Ba-140 GSP 12/8/2020 0

pCi/L 127585001 Hatch Air Filters Gross Beta 116 12/14/2020

.04942 pCi/m3 127684004 Hatch Air Filters Gross Beta 103 12/14/2020

.0491 pCi/m3 127684001 Hatch Air Filters Gross Beta 304 12/14/2020

.04268 pCi/m3 127684005 Hatch Air Filters Gross Beta 309 12/14/2020

.04313 pCi/m3 127684006 Hatch Air Filters Gross Beta 107 12/14/2020

.04836 pCi/m3 127684002 Hatch Air Filters Gross Beta 112 12/14/2020

.04353 pCi/m3 127684003 Hatch Air Filters Gross Beta 116 12/21/2020

.03172 pCi/m3 127789004 Hatch Air Filters Gross Beta 103 12/21/2020

.02512 pCi/m3 127789001 Hatch Air Filters Gross Beta 304 12/21/2020

.02848 pCi/m3 127789005 Hatch Air Filters Gross Beta 309 12/21/2020

.02871 pCi/m3 127789006 Hatch Air Filters Gross Beta 107 12/21/2020

.02708 pCi/m3 127789002 Hatch Vegetation I-131 106 12/21/2020 0

pCi/Kg 127791003 Hatch Vegetation Cs-134 106 12/21/2020 0

pCi/Kg 127791003 Hatch Vegetation Cs-137 106 12/21/2020 33.659 pCi/Kg 127791003 Hatch Vegetation Be-7 106 12/21/2020 8614.1 pCi/Kg 127791003 Hatch Vegetation K-40 106 12/21/2020 2172.3 pCi/Kg 127791003 Hatch Air Filters Gross Beta 112 12/21/2020

.02795 pCi/m3 127789003 Hatch Vegetation Cs-137 112 12/21/2020 0

pCi/Kg 127791002 Hatch Vegetation Cs-134 112 12/21/2020 0

pCi/Kg 127791002 Hatch Vegetation I-131 112 12/21/2020 0

pCi/Kg 127791002 Hatch Vegetation K-40 112 12/21/2020 2591.6 pCi/Kg 127791002 Hatch Vegetation Be-7 112 12/21/2020 2159.9 pCi/Kg 127791002 Hatch Vegetation I-131 416 12/21/2020 0

pCi/Kg 127791001 Hatch Vegetation Cs-134 416 12/21/2020 0

pCi/Kg 127791001 Hatch Vegetation Cs-137 416 12/21/2020 0

pCi/Kg 127791001 Hatch Vegetation Be-7 416 12/21/2020 2074.3 pCi/Kg 127791001 Hatch Vegetation K-40 416 12/21/2020 5934.8 pCi/Kg 127791001 Hatch Milk Gamma K-40 GSP 12/22/2020 1241.7 pCi/L 127792001 Hatch Milk Gamma Be-7 GSP 12/22/2020 0

pCi/L 127792001 Hatch Milk Gamma La-140 GSP 12/22/2020 0

pCi/L 127792001 Hatch Milk Gamma Ba-140 GSP 12/22/2020 0

pCi/L 127792001 Hatch Milk Gamma Cs-137 GSP 12/22/2020 0

pCi/L 127792001 Hatch Milk Gamma Cs-134 GSP 12/22/2020 0

pCi/L 127792001 Hatch Milk Gamma I-131 GSP 12/22/2020 0

pCi/L 127792001 Hatch Air Qtr Comp I-131 116 12/28/2020 0

pCi/m3 128017004 Hatch Air Qtr Comp Cs-134 116 12/28/2020 0

pCi/m3 128017004 Hatch Air Qtr Comp Cs-137 116 12/28/2020 0

pCi/m3 128017004 Hatch Air Qtr Comp Be-7 116 12/28/2020

.07656 pCi/m3 128017004 Hatch Air Filters Gross Beta 116 12/28/2020

.02589 pCi/m3 127838004 Hatch Air Qtr Comp Be-7 103 12/28/2020

.09531 pCi/m3 128017001 Hatch Air Qtr Comp Cs-137 103 12/28/2020 0

pCi/m3 128017001 Hatch Air Qtr Comp Cs-134 103 12/28/2020 0

pCi/m3 128017001 Hatch Air Qtr Comp I-131 103 12/28/2020 0

pCi/m3 128017001 Hatch Air Filters Gross Beta 103 12/28/2020

.02338 pCi/m3 127838001 Hatch Air Qtr Comp I-131 304 12/28/2020 0

pCi/m3 128017005 Hatch Air Qtr Comp Cs-134 304 12/28/2020 0

pCi/m3 128017005 Hatch Air Qtr Comp Cs-137 304 12/28/2020 0

pCi/m3 128017005 Hatch Air Qtr Comp Be-7 304 12/28/2020

.07873 pCi/m3 128017005 Hatch Air Filters Gross Beta 304 12/28/2020

.02585 pCi/m3 127838005 Hatch Air Qtr Comp Be-7 309 12/28/2020

.07935 pCi/m3 128017006 Hatch Air Filters Gross Beta 309 12/28/2020

.02245 pCi/m3 127838006 Hatch Air Qtr Comp Cs-137 309 12/28/2020 0

pCi/m3 128017006 Hatch Air Qtr Comp Cs-134 309 12/28/2020 0

pCi/m3 128017006 Hatch Air Qtr Comp I-131 309 12/28/2020 0

pCi/m3 128017006 Hatch Air Filters Gross Beta 107 12/28/2020

.02314 pCi/m3 127838002 Hatch Air Qtr Comp Be-7 107 12/28/2020

.08121 pCi/m3 128017002 Hatch Air Qtr Comp Cs-137 107 12/28/2020 0

pCi/m3 128017002 Hatch Air Qtr Comp Cs-134 107 12/28/2020 0

pCi/m3 128017002 Hatch Air Qtr Comp I-131 107 12/28/2020 0

pCi/m3 128017002 Hatch Air Qtr Comp Cs-137 112 12/28/2020 0

pCi/m3 128017003 Hatch Air Qtr Comp Cs-134 112 12/28/2020 0

pCi/m3 128017003 Hatch Air Qtr Comp I-131 112 12/28/2020 0

pCi/m3 128017003 Hatch Air Filters Gross Beta 112 12/28/2020

.02222 pCi/m3 127838003 Hatch Air Qtr Comp Be-7 112 12/28/2020

.07739 pCi/m3 128017003 Hatch River Water Nb-95 170 12/29/2020 0

pCi/L 127824001 Hatch River Water I-131 170 12/29/2020 0

pCi/L 127824001 Hatch River Water Cs-134 170 12/29/2020 0

pCi/L 127824001 Hatch River Water Cs-137 170 12/29/2020 0

pCi/L 127824001 Hatch River Water Ba-140 170 12/29/2020 0

pCi/L 127824001 Hatch River Water La-140 170 12/29/2020 0

pCi/L 127824001 Hatch River Water Be-7 170 12/29/2020 0

pCi/L 127824001 Hatch River Water K-40 170 12/29/2020 0

pCi/L 127824001 Hatch H-3 Water Tritium 170 12/29/2020 145 pCi/L 128364001 Hatch River Water Mn-54 170 12/29/2020 0

pCi/L 127824001 Hatch River Water Fe-59 170 12/29/2020 0

pCi/L 127824001 Hatch River Water Co-58 170 12/29/2020 0

pCi/L 127824001 Hatch River Water Co-60 170 12/29/2020 0

pCi/L 127824001 Hatch River Water Zn-65 170 12/29/2020 0

pCi/L 127824001 Hatch River Water Zr-95 170 12/29/2020 0

pCi/L 127824001

Hatch River Water Co-60 172 12/29/2020 0

pCi/L 127824002 Hatch River Water Zn-65 172 12/29/2020 0

pCi/L 127824002 Hatch River Water Zr-95 172 12/29/2020 0

pCi/L 127824002 Hatch River Water Nb-95 172 12/29/2020 0

pCi/L 127824002 Hatch River Water I-131 172 12/29/2020 0

pCi/L 127824002 Hatch River Water Be-7 172 12/29/2020 0

pCi/L 127824002 Hatch River Water K-40 172 12/29/2020 97.363 pCi/L 127824002 Hatch River Water Cs-134 172 12/29/2020 0

pCi/L 127824002 Hatch River Water Cs-137 172 12/29/2020 0

pCi/L 127824002 Hatch River Water Ba-140 172 12/29/2020 0

pCi/L 127824002 Hatch River Water La-140 172 12/29/2020 0

pCi/L 127824002 Hatch River Water Mn-54 172 12/29/2020 0

pCi/L 127824002 Hatch River Water Fe-59 172 12/29/2020 0

pCi/L 127824002 Hatch River Water Co-58 172 12/29/2020 0

pCi/L 127824002 Hatch H-3 Water Tritium 172 12/29/2020 0

pCi/L 128364002

Edwin I. Hatch Nuclear Plant - Units 1 & 2 Joseph M. Farley Nuclear Plant - Units 1 & 2 Vogtle Electric Generating Plant - Units 1 & 2 Annual Radiological Environmental Operating Reports for 2020 Farley Annual Radiological Environmental Operating Report for 2020

JOSEPH M. FARLEY NUCLEAR PLANT 2020 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report i l P a g e TABLE OF CONTENTS 1

Introduction.................................................................................................. 1 2

REMP Description......................................................................................... 2 3

Results Summary.......................................................................................... 8 3.1 Airborne Particulates............................................................................................ 17 3.1.1 Gross Beta............................................................................................................ 17 3.1.2 Gamma Particulates and Airborne Radioiodine.................................................. 19 3.2 Direct Radiation.................................................................................................... 19 3.3 Biological Media.................................................................................................... 22 3.3.1 Milk...................................................................................................................... 22 3.3.2 Vegetation............................................................................................................ 22 3.3.3 Fish....................................................................................................................... 22 3.3.3.1 Bottom Feeding Species...................................................................................... 22 3.3.3.2 Game Species....................................................................................................... 23 3.3.4 Biological Media Summary.................................................................................. 23 3.4 Off-site Groundwater............................................................................................ 23 3.5 River (Surface) Water............................................................................................ 23 3.6 Sediment............................................................................................................... 24 3.7 Interlaboratory Comparison Program.................................................................. 24 3.8 Groundwater......................................................................................................... 28 4

Survey Summaries...................................................................................... 30 4.1 Land Use Census................................................................................................... 30 4.2 Chattahoochee River Survey................................................................................. 30 4.3 Meteorological Report Summary......................................................................... 31 5

Conclusions................................................................................................. 32 Tables Table 2-1. Summary Description of Radiological Environmental Monitoring Program............................... 3 Table 2-2. Radiological Environmental Sampling Locations........................................................................ 6 Table 3-1. Radiological Environmental Monitoring Program Annual Summary........................................ 10 Table 3-2. Reporting Levels (RL)................................................................................................................. 14 Table 3-3. Anomalies and Deviations from Radiological Environmental Monitoring Program................. 15 Table 3-4. Average Weekly Gross Beta Air Concentration......................................................................... 18 Table 3-5. Average Quarterly Exposure from Direct Radiation (Historical)............................................... 20 Table 3-6. Interlaboratory Comparison Limits........................................................................................... 25 Table 3-7. Interlaboratory Comparison Summary..................................................................................... 26 Table 3-8. Groundwater Protection Program Locations............................................................................ 28 Table 3-9. Groundwater Protection Program Results................................................................................ 29 Table 4-1. Land Use Census Results........................................................................................................... 30

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report ii l P a g e Figures Figure 3-1. Average Weekly Gross Beta Air Concentration........................................................................ 18 Figure 3-2. Average Quarterly Exposure from Direct Radiation................................................................. 21 Figure 3-3. 2020 Average Exposure from Direct Radiation in Select Locations.......................................... 21 Figure 3-4. 2020 Average Tritium Concentrations in River and Off-site Groundwater.............................. 24 Appendix A - Maps A REMP Stations in Plant Vicinity A REMP Stations within 10 Miles A Extended REMP Stations A Facility Groundwater Wells Appendix B - Errata

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report iii l P a g e LIST OF ACRONYMS ADEM Alabama Department of Environmental Management APC Alabama Power Company GA EPD State of Georgia Environmental Protection Division FNP Joseph M. Farley Nuclear Plant GPCEL Georgia Power Company Environmental Laboratory ICP Interlaboratory Comparison Program MDC Minimum Detectable Concentration MDD Minimum Detectable Difference MWe MegaWatts Thermal NA Not Applicable NDM No Detectable Measurement(s)

NEI Nuclear Energy Institute NRC Nuclear Regulatory Commission ODCM Offsite Dose Calculation Manual OSL Optically Stimulated Luminescence PWR Pressurized Water Reactor REMP Radiological Environmental Monitoring Program RL Reporting Level RM River Mile SNC Southern Nuclear Operating Company TLD Thermoluminescent Dosimeter TS Technical Specification

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 1 l P a g e 1 INTRODUCTION The Radiological Environmental Monitoring Program (REMP) was conducted in accordance with Chapter 4 of the Offsite Dose Calculation Manual (ODCM). The REMP activities for 2020 are reported herein in accordance with Technical Specification (TS) Section 5.6.2 and ODCM Section 7.1.

The objectives of the REMP were to:

1) Determine the levels of radiation and the concentrations of radioactivity in the environs and;

2) Assess the radiological impact (if any) to the environment due to the operation of the Joseph M. Farley Nuclear Plant (FNP).

The assessments included comparisons between results of analyses of samples obtained at locations where radiological levels were not expected to be affected by plant operation (control stations), areas of higher population (community stations), and at locations where radiological levels were more likely to be affected by plant operation (indicator stations), as well as comparisons between preoperational and operational sample results.

FNP is owned by Alabama Power Company (APC) and operated by Southern Nuclear Operating Company (SNC). The plant is located in Houston County, Alabama approximately fifteen miles east of Dothan, Alabama on the west bank of the Chattahoochee River. Unit 1, a Westinghouse Electric Corporation Pressurized Water Reactor (PWR) with a licensed core thermal power output of 2775 MegaWatts thermal (MWt), achieved initial criticality on August 9, 1977, and was declared "commercial" on December 1, 1977. Unit 2, also a 2775 MWt Westinghouse PWR, achieved initial criticality on May 8, 1981, and was declared "commercial" on July 30, 1981.

The preoperational stage of the REMP began with initial sample collections in January of 1975.

The transition from the preoperational to the operational stage of the REMP was marked by Unit 1 initial criticality.

x A description of the REMP is provided in Section 2 of this report x Section 3 provides a summary of the results, an assessment of any radiological impacts to the environment, and the results from the Interlaboratory Comparison x A summary of the land use census and the river survey are included in Section 4 x Conclusions are included in Section 5

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 2 l P a g e 2 REMP DESCRIPTION The following section provides a description of the sampling and laboratory protocols associated with the REMP. Table 2-1 provides a summary of the sample types to be collected and the analyses to be performed in order to monitor the airborne, direct radiation, waterborne and ingestion pathways, and summarizes the collection and analysis frequencies (in accordance with ODCM Section 4.2). Table 2-2 provides specific information regarding the station locations, their proximity to the plant, and exposure pathways. Additionally, Appendix A of this report provides Maps A-1 through A-4 that depict the georeferenced location of sampling stations. Appendix B contains any Errata from previous reports, no Errata was identified for inclusion in this 2020 report.

Plant personnel collected most samples, while others were collected by Alabama Power Company Environmental Affairs field team. The Georgia Power Environmental Laboratory (GPCEL) analyzed all REMP samples.

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 3 l P a g e Table 2-1. Summary Description of Radiological Environmental Monitoring Program Exposure Pathway and/or Number of Representative Samples and Sample Locations Sampling/Collection Frequency Type/Frequency of Analysis Direct Radiation 40 routine monitoring stations with two or more dosimeters placed as follows:

An inner ring of stations, one in each compass sector in the general area of the site boundary.

An outer ring of stations, one in each compass sector at approximately 5 miles from the site; and Special interest areas, such as population centers, nearby recreation areas, and control stations Quarterly Gamma dose/Quarterly Airborne Radioiodine and Particulates Samples from eight locations:

Three locations close to the site boundary in different sectors.

Three community stations; within 8 miles Two control locations near population centers, approximately 15 and 18 miles away Continuous sampler operation with sample collection weekly Particulate sampler: Analyze for gross beta radioactivity 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months following filter change /

Weekly. Perform gamma isotopic analysis on each sample when gross beta activity is > 10 times the yearly mean of control samples.

Perform gamma isotopic analysis on composite sample (by location)/Quarterly.

Radioiodine canister: I-131 analysis/Weekly (One community station)

Waterborne Surface3 One sample upriver One sample downriver Composite sample over one-month period4 Gamma isotopic analysis2/Monthly Composite for tritium analysis/Quarterly

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 4 l P a g e Table 2-1. Summary Description of Radiological Environmental Monitoring Program Exposure Pathway and/or Number of Representative Samples and Sample Locations Sampling/Collection Frequency Type/Frequency of Analysis Groundwater Off-site monitoring includes one indicator station and one control station See Table 3-8 and Map A-4 in Appendix A for on-site well locations. These are part of the GWPP (NEI 07-07).

Quarterly Frequency based on GWPP Off-site wells are analyzed only for Gamma Isotopic, I-131, & tritium Tritium, gamma isotopic, and field parameters of each sample; hard-to-detects based on tritium and gamma results Shoreline Sediment7 One sample from downriver area with existing or potential recreational value One sample from upriver area with existing or potential recreational value Semiannually Gamma isotopic analysis2/Semiannually Ingestion Milk5 Two samples from milking animals at control locations at about 10 miles or more Bimonthly Gamma isotopic analysis2,6/Bimonthly Fish8 One bottom feeding fish and one game fish both upstream and downstream Semiannually During spring/fall spawning season Gamma isotopic analysis2 on edible portions/

Semiannually Gamma isotopic analysis2 on edible portions/

Annually.

Grass or Leafy Vegetation One sample from two onsite locations near the site boundary in different sectors One sample from a control location at an approximate distance of 18 miles Monthly during growing season Gamma isotopic analysis2,6/Monthly

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 5 l P a g e Table 2-1. Summary Description of Radiological Environmental Monitoring Program Exposure Pathway and/or Number of Representative Samples and Sample Locations Sampling/Collection Frequency Type/Frequency of Analysis Notes:

1Airborne particulate sample filters were analyzed for gross beta radioactivity 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or more after sampling to allow for radon and thoron daughter decay. If gross beta activity in air particulate samples was greater than 10 times the yearly mean of control samples, gamma isotopic analysis was performed on the individual samples.

2Gamma isotopic analysis means the identification and quantification of gamma-emitting radionuclides that may be attributable to the effluents from the facility.

3Upriver sample was taken at a distance beyond significant influence of the discharge. Downriver samples were taken beyond but near the mixing zone.

4Composite sample aliquots were collected at time intervals that were very short (e.g., hourly) relative to the compositing period (e.g., monthly) to ensure obtaining a representative sample.

5A milking animal is a cow or goat producing milk for human consumption, no milk animals were found within five miles of the plant, a control sample not collected since 2009.

6If the gamma isotopic analysis is not sensitive enough to meet the Minimum Detectable Concentration (MDC) for I-131, a separate analysis for I-131 may be performed.

7These collections were normally made at river mile 41.3 for the indicator station and river mile 47.8 for the control station; however, due to river bottom sediment shifting caused by high flows, dredging, etc., collections may be made from river mile 40 to 42 for the indicator station and from river mile 47 to 49 for the control station.

8 Since several miles of river water may be needed to obtain adequate fish samples, these river mile positions represent the approximate locations from which the fish are taken. Collections for the indicator station should be from river mile 37.5 to 42.5 and for the control station from river mile 47 to 52.

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 6 l P a g e Table 2-2. Radiological Environmental Sampling Locations Station Number Station Type Descriptive Location Direction1 Distance (miles)1 Radiation Sample Type 0501 Indicator River Intake Structure (Spare)

ESE 0.8 Airborne 0701 Indicator South-southeast Perimeter SSE 1.0 Airborne 1101 Indicator Plant Entrance WSW 0.9 Airborne 1601 Indicator North Perimeter N

0.8 Airborne 0215 Control Blakely GA NE 15 Airborne, Direct 07182 Control Neals Landing, FL SSE 18 Airborne, Direct 1218 Control Dothan, AL W

18 Airborne, Direct, Vegetation 0703 Community GA Pacific Paper Co.

SSE 3

Airborne, Direct 1108 Community Ashford, AL WSW 8

Airborne 1605 Community Columbia, AL N

5 Airborne, Direct 0101 Indicator Plant Perimeter NNE 0.9 Direct 0201 Indicator Plant Perimeter NE 1.0 Direct 0301 Indicator Plant Perimeter ENE 0.9 Direct 0401 Indicator Plant Perimeter E

0.8 Direct 0501 Indicator Plant Perimeter ESE 0.8 Direct 0601 Indicator Plant Perimeter SE 1.1 Direct 0701 Indicator Plant Perimeter SSE 1.0 Direct, Vegetation 0801 Indicator Plant Perimeter S

1.0 Direct 0901 Indicator Plant Perimeter SSW 1.0 Direct 1001 Indicator Plant Perimeter SW 0.9 Direct 1101 Indicator Plant Perimeter WSW 0.9 Direct 1201 Indicator Plant Perimeter W

0.8 Direct 1301 Indicator Plant Perimeter WNW 0.8 Direct 1401 Indicator Plant Perimeter NW 1.1 Direct 1501 Indicator Plant Perimeter NNW 0.9 Direct 1601 Indicator Plant Perimeter N

0.8 Direct, Vegetation 1215 Control Dothan, AL W

15 Direct 1311 Control Webb, AL W

11 Direct 1612 Control Haleburg, AL WNW 12 Direct 1001 Community Whatley Residence SW 12 Direct 1108 Community Ashford, AL WSW 8.0 Direct WRI Indicator Downstream of plant discharge, approximately RM 40 S

3.0 River Water WRB Control Upstream of plant intake, approximately RM 47 NNE 3.0 River Water WGI-07 Indicator Paper Mill Well SSE 4.0 Groundwater WGB-10 Control Whatley Residence SW 1.2 Groundwater

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 7 l P a g e Table 2-2. Radiological Environmental Sampling Locations Station Number Station Type Descriptive Location Direction1 Distance (miles)1 Radiation Sample Type RSI Indicator Downstream of plant discharge at Smiths Bend (RM 41)

S 4.0 Sediment RSB Control Upstream of plant intake at Andrews Lock and Dam (RM 48)

N 4.0 Sediment FGI &

FGB Indicator Downstream of plant discharge at Smiths Bend (RM 41)

S 4.0 Fish FGB &

FBB Control Upstream of plant intake at Andrews Lock and Dam (RM 48)

N 4.0 Fish 0104 Community Early Co., GA NNE 4.0 Direct 0204 Community Early Co., GA NE 4.0 Direct 0304 Community Early Co., GA ENE 4.0 Direct 0405 Community Early Co., GA E

5.0 Direct 0505 Community Early Co., GA ESE 5.0 Direct 0605 Community Early Co., GA SE 5.0 Direct 0805 Community Houston Co., AL S

5.0 Direct 0904 Community Houston Co., AL SSW 4.0 Direct 1005 Community Houston Co., AL SW 5.0 Direct 1104 Community Houston Co., AL WSW 4.0 Direct 1204 Community Houston Co., AL W

4.0 Direct 1304 Community Houston Co., AL WNW 4.0 Direct 1404 Community Houston Co., AL NW 4.0 Direct 1504 Community Houston Co., AL NNW 4.0 Direct Notes:

1Direction and distance were determined as the mid-point between the Unit 1 and Unit 2 vent stacks.

2 Spare, per the ODCM

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 8 l P a g e 3 RESULTS

SUMMARY

Included in this section are statistical evaluations of the laboratory results, comparison of the results by media, and a summary of the anomalies and deviations. Overall, 1,719 analyses were performed across nine exposure pathways. Tables and figures are provided throughout this section to provide an enhanced presentation of the information.

In recent history, man-made nuclides have been released into the environment and have resulted in widespread distribution of radionuclides across the globe. For example, atmospheric nuclear weapons tests from the mid-1940s through 1980 distributed man-made nuclides around the world. The most recent atmospheric tests in the 1970s and in 1980 have had a significant impact upon the radiological concentrations found in the environment prior to and during pre-operation, and through early operation. Some long-lived radionuclides, such as Cs-137, continue to be detected and a portion of these detections are believed to be attributed to the nuclear weapons tests.

Additionally, data associated with certain radiological effects created by off-site events have been removed from the historical evaluation, this includes: the nuclear atmospheric weapon test in the fall of 1980, the Chernobyl incident in the spring of 1986 and the Fukushima accident in the spring of 2011.

As indicated in ODCM 7.1.2.1, the results for naturally occurring radionuclides that are also found in plant effluents must be reported along with man-made radionuclides. Historically, the radionuclide Be-7, which occurs abundantly in nature, is often detected in REMP samples, and occasionally detected in the plants liquid and gaseous effluents. In 2020, Be-7 was not detected in any plant effluents and therefore it was not included in this report. When it is detected in plant effluents and REMP samples, it is also included in the REMP results. The Be-7 detected in select REMP samples likely represents naturally occurring and/or background conditions.

As part of the data evaluation process, SNC considered the impact of the non-plant associated nuclides along with a statistical evaluation of the REMP data. The statistical evaluations included within this report include the Minimum Detectable Concentration (MDC), the Minimum Detectable Difference (MDD), and Chauvenets Criterion as described below.

Minimum Detectable Concentration The minimum detectable concentration is defined as an estimate of the true concentration of an analyte required to give a specified high probability that the measured response will be greater than the critical value.

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 9 l P a g e Minimum Detectable Difference The Minimum Detectable Difference (MDD) compares the lowest significant difference (between the means) of a control station versus an indicator or a community station, that can be determined statistically at the 99% Confidence Level (CL). A difference in mean values which was less than the MDD was considered statistically indiscernible. The MDD is used to evaluate the statistical proximity between the indicator/community and control sample results, but generally, any results that are less than the MDC and/or Reporting Levels (RL) are considered to have minimal impact on the surrounding environs.

Chauvenets Criterion All results were tested for conformance with Chauvenet's Criterion (G. D. Chase and J. L.

Rabinowitz, Principles of Radioisotope Methodology, Burgess Publishing Company, 1962, pages 87-90) to identify values which differed from the mean of a set by a statistically significant amount. Identified outliers were investigated to determine the reason(s) for the difference. If equipment malfunction or other valid physical reasons were identified as causing the variation, the anomalous result was excluded from the data set as non-representative.

Table 3-1 summarizes and evaluates the annual results for the indicator stations against the control and community stations (where applicable) and as appropriate, results were evaluated against the MDCs (listed in Table 3-1) and RLs (listed in Table 3-2). The required MDCs were achieved during laboratory sample analysis. The 2020 results were compared with previous results, including those obtained during pre-operation. No data points were excluded for violating Chauvenets Criterion.

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 10 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Locations Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f) Mean (b),

Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Airborne Particulates (fCi/m3)

Gross Beta 415 10 16.1 2.6 to 37.3 (155/155)

GA Pacific Paper Co. (SSE-3 mi) community 19.7 6.5 to 31.6 (52/52) 17.1 6.5 to 54.1 (157/156) 14.4 4.5 to 34.1 (104/104)

Gamma Isotopic Be-7 I-131 32 70 NDM(c)

NDM NDM NDM Cs-134 32 50 NDM NDM NDM NDM Cs-137 32 60 NDM NDM NDM NDM Airborne Radioiodine(fCi/m3)

I-131 311 70 NDM NDM NDM NDM Direct Radiation (mR/91 days)

Gamma Dose 160 17.2 13 to 26.6 (64/64)

Plant Perimeter, E 0.8 mi Indicator 25.83 25.2 to 26.6 (4/4) 14.4 11.4 to 17.4 (72/72) 17.3 12.6 to 24.5 (24/24)

Milk (pCi/l)

Gamma Isotopic 0

I-131 1

Cs-134 15 Cs-137 18 Ba-140 60 La-140 15 Vegetation (pCi/kg-wet)

Gamma Isotopic 36

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 11 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Locations Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f) Mean (b),

Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Be-7 I-131 36 60 NDM NDM Cs-134 36 60 NDM NDM Cs-137 36 80 NDM Dothan, AL W 18 mi.

Control 69.4 0-35.5 (1/11) 69.4 69.4-69.4 (1/11)

River Water (pCi/l)

Gamma Isotopic 26 Mn-54 15 NDM NDM NDM NDM Fe-59 30 NDM NDM NDM NDM Co-58 15 NDM NDM NDM NDM Co-60 15 NDM NDM NDM NDM Zn-65 30 NDM NDM NDM NDM Zr-95 30 NDM NDM NDM NDM Nb-95 15 NDM NDM NDM NDM I-131 15 NDM NDM NDM NDM Cs-134 15 NDM NDM NDM NDM Cs-137 18 NDM NDM Ba-140 60 NDM NDM La-140 15 NDM NDM Tritium 8

3000 96.6 116 to 197 (3/4)

Paper Mill (RM 40)

Indicator 96.6 116 to 197 (3/4)

-128.0 0-0 (2/4)

Off-site Groundwater Gamma Isotopic 8

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 12 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Locations Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f) Mean (b),

Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Mn-54 15 NDM NDM NDM Fe-59 30 NDM NDM NDM Co-58 15 NDM NDM NDM Co-60 15 NDM NDM NDM Zn-65 30 NDM NDM NDM Zr-95 30 NDM NDM NDM Nb-95 15 NDM NDM NDM I-131 15 NDM NDM NDM Cs-134 15 NDM NDM NDM Cs-137 18 NDM NDM NDM Ba-140 60 NDM NDM NDM La-140 15 NDM NDM NDM Tritium 8

2000 NDM NDM NDM NDM Bottom Feeding Fish (pCi/kg-wet)

Gamma Isotopic 4

Mn-54 130 NDM NDM NDM Fe-59 260 NDM NDM NDM Co-58 130 NDM NDM NDM Co-60 130 NDM NDM NDM Zn-65 260 NDM NDM NDM Cs-134 130 NDM NDM NDM Cs-137 150 NDM NDM NDM Game Fish (pCi/kg-wet)

Gamma Isotopic 4

Mn-54 130 NDM NDM NDM Fe-59 260 NDM NDM NDM

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 13 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Locations Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f) Mean (b),

Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Co-58 130 NDM NDM NDM Co-60 130 NDM NDM NDM Zn-65 260 NDM NDM NDM Cs-134 130 NDM NDM NDM Cs-137 150 NDM N/A NDM NDM Sediment (pCi/kg-dry)

Gamma Isotopic 4

Co-60 70 NDM NDM NDM Cs-134 150 NDM NDM NDM Cs-137 180 NDM NDM NDM Notes:

(a)The MDC is defined in ODCM 10.1. Except as noted otherwise, the values listed in this column are the detection capabilities required by ODCM Table 4-3. The values listed in this column are a priori (before the fact) MDCs. In practice, the a posteriori (after the fact) MDCs are generally lower than the values listed.

(b) Mean and range were based upon detectable measurements only. The fraction of all measurements at a specified location that are detectable is placed in parenthesis.

(c) No Detectable Measurement(s) (NDM).

(d) The Georgia Power Company Environmental Laboratory has determined that this value may be routinely attained under normal conditions. No value is provided in ODCM Table 4-3.

(e) Item 3 of ODCM Table 4-1 implies that an I-131 analysis is not required to be performed on water samples when the dose calculated from the consumption of water is less than 1 mrem per year. However, I-131 analyses have been performed on the finished drinking water samples.

(f) Other stations, as identified in the Station Type column of Table 2-2, are Community and/or Special stations.

Not Applicable (NA) (sample not required)

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 14 l P a g e Table 3-2. Reporting Levels (RL)

Analysis Water (pCi/l) Airborne Particulate or Gases (fCi/m3)

Fish (pCi/kg-wet)

Milk (pCi/l)

Grass or Leafy Vegetation (pCi/kg-wet)

H-3 20,000a Mn-54 1,000 30,000 Fe-59 400 10,000 Co-58 1,000 30,000 Co-60 300 10,000 Zn-65 300 20,000 Zr-95 400 Nb-95 700 I-131 2b 900 3

100 Cs-134 30 10,000 1,000 60 1,000 Cs-137 50 20,000 2,000 70 2,000 Ba-140 200 300 La-140 100 400 a This is the 40 CFR 141 value for drinking water samples. If no drinking water pathway exists, a value of 30,000 may be used.

b If no drinking water pathway exists, a value of 20 pCi/l may be used.

In accordance with ODCM 4.1.1.2.1, deviations from the required sampling schedule were permitted, if samples were unobtainable due to hazardous conditions, unavailability, inclement weather, equipment malfunction or other just reasons. Deviations from conducting the REMP sampling (as described in Table 2-1) are summarized in Table 3-3 along with their causes and resolutions.

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 15 l P a g e Table 3-3. Anomalies and Deviations from Radiological Environmental Monitoring Program Collection Period Affected Samples Anomaly (A)* or Deviation (D)**

Cause Resolution 02-11-20 to 03-10-20 Surface water sample Control station (WRB)

Andrews Lock & Dam Upper Pier (Chattahoochee River Mile - 47)

(A) Non-representative sample of surface water gamma isotopic and tritium Lost 78 monthly sample aliquots due to removal of composite sampler in anticipation of flooding conditions on the Chattahoochee River.

Composite sampler returned to service at start of next collection period with return of normal river levels.

05-19-20 to 05-26-20 Air sample PI-1601/II-1601 0.8 mile - N (A) Non-representative sample of airborne particulate and radioiodine Lost 40.1 hours1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months of weekly sample collection due to sampling equipment having tripped off during storm event.

Station returned to normal operation after power was restored to sampling equipment.

07-21-20 to 07-29-20 Air sample PI-0701/II-0701 1.0 mile - SSE (A) Non-representative sample of airborne particulate and radioiodine Lost 48.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months of weekly sample collection due to loss of station power from ongoing plant maintenance activities.

Station returned to normal operation after power was restored to sampling equipment.

08-18-20 to 08-25-20 Air sample PI-1101/II-1101 0.9 mile - WSW (D) Non-representative sample of airborne particulate and radioiodine Lost 167.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months of weekly sample collection due to loss of station power from ongoing plant maintenance activities.

Station returned to normal operation after power was restored to sampling equipment.

08-25-20 to 09-22-20 Surface water sample Control station (WRB)

Andrews Lock & Dam Upper Pier (Chattahoochee River Mile - 47)

(A) Non-representative sample of surface water gamma isotopic and tritium Lost 82 monthly sample aliquots due to removal of composite sampler in anticipation of flooding conditions on the Chattahoochee River.

Composite sampler returned to service at start of next collection period with return of normal river levels.

09-08-20 to 09-15-20 Air sample PC-0703/IC-0703 3.0 miles - SSE (A) Non-representative sample of airborne particulate and radioiodine Lost 112 hours0.0013 days 0.0311 hours 1.851852e-4 weeks 4.2616e-5 months of weekly sample collection due to sampling equipment having tripped off during storm event.

Station returned to normal operation after power was restored to sampling equipment.

09-15-20 to 09-22-20 Air sample PI-1601/II-1601 0.8 mile - N (A) Non-representative sample of airborne Lost 111 hours0.00128 days 0.0308 hours 1.835317e-4 weeks 4.22355e-5 months of weekly sample collection due to inoperable electrical Station returned to normal operation after power was restored to sampling equipment.

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 16 l P a g e particulate and radioiodine disconnect supplying power to station.

09-22-20 to 09-29-20 Air sample PI-1601/II-1601 0.8 mile - N (A) Non-representative sample of airborne particulate and radioiodine Lost 74.7 hours8.101852e-5 days 0.00194 hours 1.157407e-5 weeks 2.6635e-6 months of weekly sample collection during repairs to the electrical disconnect supplying power to station.

Station returned to normal operation after power was restored to sampling equipment.

10-13-20 to 10-20-20 Air sample PI-1601/II-1601 0.8 mile - N (A) Non-representative sample of airborne particulate and radioiodine Lost 82.3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months of weekly sample collection due to failed transformer supplying power to station.

Station returned to normal operation after power was restored to sampling equipment.

10-20-20 to 10-27-20 Air sample PI-1601/II-1601 0.8 mile - N (A) Non-representative sample of airborne particulate and radioiodine Lost 72.3 hours3.472222e-5 days 8.333333e-4 hours 4.960317e-6 weeks 1.1415e-6 months of weekly sample collection during replacement of transformer supplying power to station.

Station returned to normal operation after power was restored to sampling equipment.

11-10-20 to 11-17-20 Air sample PB-1218 18 miles - W (A) Non-representative sample of airborne particulate Particulate sample filter damaged during maintenance activities at station.

New particulate filter installed at start of next weekly sample period.

An anomaly is considered a non-standard sample that still meets sampling criteria outlined in SNC and Georgia Power Labs procedures.

- A deviation is a sample result that is not recorded due to not meeting scheduling and/or procedural requirements as outlined by SNC and Georgia Power Labs

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 17 l P a g e 3.1 Airborne Particulates As specified in Table 2-1, airborne particulate filters were collected weekly at three indicator stations (Stations 0701, 1101, and 1601) which encircle the plant at the site periphery, at three community station (0703, 1108, and 1605) approximately three to eight miles from the plant, and at two control stations (0215 and 1218) which range from approximately 15 to 18 miles from the plant. At each sampling location containing a filter and cartridge series, air was continuously drawn through a glass fiber filter to retain airborne particulate. An activated charcoal canister was also placed in series with the particulate filter in order to adsorb radioiodine at community station 0703 in Cedar Springs, GA for comparison purposes with the Georgia Environmental Protection Division (EPD).

3.1.1 Gross Beta As provided in Table 3-1, the 2020 annual average weekly gross beta activity was 16.1 fCi/m3 for the indicator stations. It was greater than the control station average of 14.4 fCi/m3 for the year.

The difference was less than the calculated MDD of 1.7 fCi/L, so the result was not statistically discernible. The 2020 annual average weekly gross beta activity at the community stations was 17.1 fCi/m3 which was 2.7. fCi/m3 more than the control station average. The difference was more than the calculated MDD of 2.3 fCi/L, so the result was statistically discernible, however based on the relationship between the indicator and the control stations this statistical difference is not considered related to plant operations Average Air Gross Beta historical data (Table 3-4) is graphed to show trends associated with a prevalent exposure pathway (Figure 3-1). In general, there was a close agreement between the results for the indicator, control, and community stations. This close agreement supports the position that the plant was not contributing significantly to the gross beta concentrations in air.

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 18 l P a g e Table 3-4. Average Weekly Gross Beta Air Concentration Period Indicator (fCi/m3)

Control (fCi/m3)

Community (fCi/m3)

Period Indicator (fCi/m3)

Control (fCi/m3)

Community (fCi/m3)

Pre-op 90 92 91 1999 20.5 22.1 25.2 1977 205 206 206 2000 20.9 20.8 23.6 1978 125 115 115 2001 16.3 17.2 17.3 1979 27.3 27.3 28.7 2002 16.8 18 16.8 1980 29.7 28.1 29.2 2003 19.1 19.3 19.9 1981 121 115 115 2004 22.0 21.3 22.4 1982 20.0 20.4 21.0 2005 18.4 19.3 19.0 1983 15.5 14.1 14.5 2006 16.1 17.5 16.8 1984 10.2 12.6 10.5 2007 14.5 18.9 17.3 1985 9.0 9.6 10.3 2008 16.7 20.6 18.0 1986 10.5 15.8 12.5 2009 16.2 16.3 17.3 1987 9.0 11.0 17.0 2010 21.2 17.5 18.2 1988 8

8 10 2011 20.9 14.5 18.2 1989 7

7 8

2012 18.0 17.3 18.9 1990 10 10 10 2013 16.7 18.7 16.1 1991 9

10 8

2014 17.7 19.1 18.5 1992 15 17.9 18.5 2015 13.4 15.9 16.8 1993 19.1 22.3 22.4 2016 18.7 18.8 19.9 1994 19.0 20.0 19.0 2017 20.7 18.9 22.1 1995 21.7 22.9 21.6 2018 18.1 16.9 18.3 1996 20.3 22.3 23.5 2019 17.5 17.7 18.1 1997 21.1 21.6 22.4 2020 16.1 14.4 17.1 1998 20.6 19.3 22.0 Figure 3-1. Average Weekly Gross Beta Air Concentration 0

50 100 150 200 250 Concentration (fCi/m3)

YEAR Indicator Control Community

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 19 l P a g e 3.1.2 Gamma Particulates and Airborne Radioiodine During 2020, no man-made radionuclides were detected from the gamma isotopic analysis of the quarterly composites of the air particulate filters other than Be-7, as discussed previously, Be-7 is a naturally occurring isotope and was not released from plant operations and is therefore not further evaluated here.

I-131 was not detected in the air cartridges at either the indicator or control stations in 2020.

Historically, gamma isotopes have been detected as a result of offsite events. During pre-operation, Cs-137 was occasionally detected.

3.2 Direct Radiation In 2020, direct (external) radiation was measured with Optically Stimulated Luminescent (OSLD) dosimeters by placing two OSLD badges at each station. The gamma dose at each station was reported as the average reading of the two badges. The badges were analyzed on a quarterly basis. An inspection was performed near mid-quarter for offsite badges to ensure that the badges were on-station and to replace any missing or damaged badges.

Two direct radiation stations were established in each of the 16 compass sectors, to form two concentric rings. The inner ring (Stations 0101 through 1601) was located near the plant perimeter as shown in Map A-1 in Appendix A and the outer ring (Stations 0104 through 1605) was located at approximately 5 miles (varying distances) from the plant as shown in Map A-2 in Appendix A. The 16 stations forming the inner ring were designated as the indicator stations. The two-ring configuration of stations was established in accordance with NRC Branch Technical Position An Acceptable Radiological Environmental Monitoring Program, Revision 1, November 1979. The six control stations (Stations 0215, 0718, 1215, 1218, 1311 and 1612) were located at varying distances greater than 10 miles from the plant as shown in Map A-3 in Appendix A.

Monitored special interest areas consist of the following: Station 1001 which was the nearest residence to the plant, and Station 1108 in the town of Ashford, Alabama. The mean and range values presented in the Other column in Table 3-1 includes the outer ring stations (stations 0104 through 1605) as well as stations 1001 and 1108.

As provided in Table 3-1, the 2020 average quarterly exposure at the indicator stations (inner ring) was 17.2 mR with a range of 13.0 to 26.6 mR. The 2020 average quarterly exposure at the control station average was 17.3 mR with a range 12.5 mR to 24.5mR. The MDD was not calculated because the control average was higher than the indicator average. These values are consistent with historical readings, where the indicator and control are closely correlated.

The quarterly exposures acquired at the community/other (outer ring) stations during 2020 ranged from 11.4 -17.4 mR with an average of 14.4 mR which was 2.9 mR less than that of the control stations (17.3 mR). The MDD does not apply since the average is less than that of the control average.

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 20 l P a g e Average Direct Radiation historical data (Table 3-5) is graphed to show trends associated with a prevalent exposure pathway (Figure 3-2). The decrease between 1991 and 1992 values was attributed to a change in Thermoluminescent Dosimeters (TLDs) from Teledyne to Panasonic. It should be noted however that the differences between indicator and control and outer ring values did not change. The increase shown in 2010 reflected issues with the aging Panasonic TLD reader. The close agreement between the station groups has supported the position that the plant was not contributing significantly to direct radiation in the environment.

Figure 3-3 provides a more detailed view of the 2020 values. The values for the indicator and special interest areas detailed below indicate that Plant Farley did not significantly contribute to direct radiation at those areas.

Table 3-5. Average Quarterly Exposure from Direct Radiation (Historical)

Period Indicator (mR)

Control (mR)

Outer Ring (mR)

Period Indicator (mR)

Control (mR)

Outer Ring (mR)

Pre-op 12.6 11.4 10.1 1999 14.7 13.4 12.6 1977 10.6 12.2 10.6 2000 15.5 14.1 13.5 1978 15 13.5 12 2001 14.9 13.4 12.7 1979 20.3 18.7 15.2 2002 14.1 12.6 11.9 1980 21.9 21.6 18.5 2003 15.2 13.6 12.9 1981 16.5 14.9 14.5 2004 14.3 12.9 12.1 1982 15.5 14.7 13 2005 14.7 13.4 12.5 1983 20.2 20.2 17.4 2006 15.2 13.6 12.9 1984 18.3 16.9 15.3 2007 14.6 13.3 12.5 1985 21.9 22 18 2008 15.0 13.7 12.9 1986 17.8 17.7 15.1 2009 15.2 13.6 12.8 1987 20.8 20.0 18.0 2010 17.8 16.7 15.5 1988 21.5 19.9 18.5 2011 21.0 19.9 18.4 1989 18.0 16.2 15.3 2012 17.4 15.8 14.7 1990 18.9 16.4 15.8 2013 16.5 15.1 13.8 1991 18.4 16.1 16.1 2014 16.7 15.7 14.1 1992 16.1 13.6 13.5 2015 17.1 15.6 14.4 1993 17.4 15.9 15.6 2016 16.3 15.2 13.9 1994 15.0 13.0 12.0 2017 16.9 16.9 14.2 1995 14.0 12.5 11.8 2018 16.3 16.7 13.7 1996 14.2 12.7 11.9 2019 15.2 15.2 12.8 1997 15.3 13.9 11.9 2020 17.2 17.3 14.4 1998 16.2 14.6 13.9

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 21 l P a g e Figure 3-2. Average Quarterly Exposure from Direct Radiation Figure 3-3. 2020 Average Exposure from Direct Radiation in Select Locations 0

2 4

6 8

10 12 14 16 18 20 22 Dose (mR)

Year Indicator Control Community 0

2 4

6 8

10 12 14 16 18 Indicator Control Community Nearest Residence Ashford, AL Dose (mR)

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 22 l P a g e 3.3 Biological Media Cs-137 was the only radionuclide detected in one of the three biological media. As indicated in Figure 3-4, the Cs-137 activity levels were below the respective MDCs and well below that of the respective RLs for each sample media for both the indicator and control stations.

3.3.1 Milk Milk samples had been collected biweekly from a control location until the end of 2009 when the dairy would no longer provide samples. No indicator station (a location within five miles of the plant) has been available for milk sampling since 1987. As discussed in Section 4.0, no milk animals were found within five miles of the plant during the 2020 land use census and no milk sampling was performed during the reporting year.

3.3.2 Vegetation In accordance with Table 2-1 and 2-2, forage (vegetation) samples were collected every four weeks at two indicator stations on the plant perimeter, and at one control station located approximately 18 miles west of the plant in Dothan, Alabama. Historically, the man-made radionuclide Cs-137 were periodically identified in vegetation samples and was generally attributed to offsite sources (such as weapons testing, Chernobyl, and Fukushima).

During 2020, Cs-137 was identified in one sample at the control station, FB-1218-M1 (Dothan, Alabama). The control station average (and single value) was 69.4 pCi/L (no range, with only one positive). This average was based only on the detectable values; all other results were below detection limits. No environmental concerns were noted since the results were well below the RL of 2,000 pCi/L for Cs-137 in vegetation.

Be-7 was also detected in vegetation during 2020, but was not released in plant effluents throughout the year. This further illustrates the abundance of naturally-occurring Be-7 present in the surrounding environment.

3.3.3 Fish In accordance with Table 2-1, two types of fish (bottom-feeding and game) were collected on a semiannually basis from the Chattahoochee River at a control station several miles upstream of the plant intake structure and at an indicator station a few miles downstream of the plant discharge structure. These locations are shown in Map A-3 in Appendix A.

3.3.3.1 Bottom Feeding Species No radionuclides were identified from the control or indicator samples in 2020.

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 23 l P a g e 3.3.3.2 Game Species No radionuclides were identified from the control or indicator samples in 2020.

3.3.4 Biological Media Summary There were no statistical differences, trends, or anomalies associated with the 2020 biological media samples when compared to historical data. Cs-137 was occasionally present in biological media, as with previous sample results; however, the detections were consistently below both the MDC or RL. No other reportable radionuclides were found from the gamma isotopic analysis of biological media samples in 2020.

3.4 Off-site Groundwater There were no true indicator sources of offsite ground water near Plant Farley. A well, located approximately four miles south-southeast of the plant on the east bank of the Chattahoochee River, serves Georgia Pacific Paper Company as a source of potable water. This well was designated as the indicator station. A deep well located about 1.2 miles southwest of the plant supplies water to the Whatley residence. This well was designated as the control station.

Samples were collected quarterly and analyzed for gamma isotopic, I-131 and tritium as specified in Table 2-1. In 2020, there were no radionuclides detected in any of the ground water samples from either sample station, apart from tritium.

Since 2004, tritium has been identified at very low concentrations (near the instrument detection level) and close to environmental background levels in off-site groundwater. In 2020, tritium was not detected in indicator station WGI-07 or the control station.

3.5 River (Surface) Water Composite river water samples were collected monthly at one upstream control location and one downstream indicator location (shown on Map A-2). The details of the sampling protocols are outlined in Tables 2-1 and Table 2-2. A gamma isotopic analysis was conducted on each monthly sample. The monthly aliquots were combined in the lab to form quarterly composite samples in order to be analyzed for tritium.

As provided in Table 3-1, there were no positive results during 2020 from the gamma isotopic analysis of the river water samples. Tritium was detected in each of the quarterly composites at the indicator station, with an average of 96.6 pCi/L (range of 116 to 197). Tritium was not detected in the control station. The positive tritium results for the indicator station were less than the MDC and RL limits (2,000 pCi/l and 20,000 pCi/l, respectively) for tritium in a drinking water supply source. The MDD was not calculated because of the lack of positive results from the control station. These values represent background conditions for tritium in drinking water

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 24 l P a g e and were not attributable to plant activity. Also, note that negative values in radionuclide activity represent contamination factors (e.g., laboratory equipment) subtracted from the laboratory result.

Figure 3-4 below details the 2020 average tritium concentrations across both water mediums.

Figure 3-4. 2020 Average Tritium Concentrations in River and Off-site Groundwater 3.6 Sediment Sediment was collected along the shoreline of the Chattahoochee River in the spring and fall at a control station that was approximately four miles upstream of the intake structure and at an indicator station that was approximately two miles downstream of the discharge structure as shown in Map A-3. A gamma isotopic analysis was performed on each sample. There were no reportable radionuclides detected in sediment samples in 2020.

3.7 Interlaboratory Comparison Program In accordance with ODCM 4.1.3, GPCEL participated in an Interlaboratory Comparison Program (ICP) which satisfied the requirements of Regulatory Guide 4.15, Revision 1, "Quality Assurance for Radiological Monitoring Programs (Normal Operations) - Effluent Streams and the Environment", February 1979. The ICP included the required determinations (sample medium/radionuclide combinations) included in the REMP.

The ICP was conducted by Eckert & Ziegler Analytics, Inc. (EZA) of Atlanta, Georgia. EZA has a documented Quality Assurance (QA) program and the capability to prepare Quality Control (QC) materials traceable to the National Institute of Standards and Technology. The ICP is a third-party 0

50 100 150 200 250 300 350 400 450 500 River Water Off-Site Groundwater Concentration (pCi/L)

Indicator Control

PLANT FARLEY 2020 FNP Annual Radiological Environmental Operating Report 25 l P a g e blind testing program which provided a means to ensure independent checks were performed on the accuracy and precision of the measurements of radioactive materials in environmental sample matrices. EZA supplied the crosscheck samples to GPCEL which performed routine laboratory analyses. Each of the specified analyses was performed three times.

The accuracy of each result was measured by the normalized deviation, which is the ratio of the reported average less the known value to the total error. An investigation was undertaken whenever the absolute value of the normalized deviation was greater than three or whenever the coefficient of variation was greater than 15% for all radionuclides other than Cr-51 and Fe-

59. For Cr-51 and Fe-59, an investigation was undertaken when the coefficient of variation exceeded the values shown on Table 3-6 below:

Table 3-6. Interlaboratory Comparison Limits Nuclide Concentration

Total Sample Activity (pCi)

Percent Coefficient of Variation Cr-51

<300 NA 25 NA

>1000 25

>300

<1000 15 Fe-59

<80 NA 25

>80 NA 15

For air filters, concentration units are pCi/filter. For all other media, concentration units are pCi/liter (pCi/l).

As required by ODCM 4.1.3.3 and 7.1.2.3, a summary of the results of the GPCEL's participation in the ICP is provided in Table 3-7 for:

x gross beta and gamma isotopic analyses of an air filter x gamma isotopic analyses of milk samples x gross beta, tritium, and gamma isotopic analyses of water samples The 2020 analyses included tritium, gross beta and gamma emitting radionuclides in different matrices. The results for the analyses were within acceptable limits for accuracy and no investigations were required.

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report 26 l P a g e Table 3-7. Interlaboratory Comparison Summary Analysis or Radionuclide Date Prepared Reported Average Known Value Standard Deviation EL Uncertainty Analytics (3S)

Percent Coefficient of Variation Normalized Deviation I-131 ANALYSIS OF AN AIR CARTRIDGE (pCi/cartridge)

I-131 3/12/2020 95.9 91.2 1.33 1.52 5.21 0.95 GAMMA ISOTOPIC ANALYSIS OF AN AIR FILTER (pCi/filter)

Ce-141 9/10/2020 108 101 3.14 1.69 6.21 1.07 Co-58 126 121 4.97 2.02 5.89 0.71 Co-60 260 255 6.47 4.26 4.49 0.44 Cr-51 273 251 14.8 4.18 8.22 0.99 Cs-134 144 135 6.33 2.25 5.64 1.06 Cs-137 185 168 4.44 2.81 4.71 1.95 Fe-59 140 135 5.80 2.25 6.40 0.59 Mn-54 137 121 3.53 2.03 4.99 2.40 Zn-65 204 182 15.8 3.03 9.13 1.19 GROSS BETA ANALYSIS OF AN AIR FILTER (PCI/FILTER)

Gross Beta 6/4/2020 219 235 6.28 3.93 3.74

-1.95 GAMMA ISOTOPIC ANALYSIS OF A MILK SAMPLE (PCI/LITER)

Co-58 9/10/2020 182 180 4.20 3.00 5.83 0.22 Co-60 381 379 9.46 6.33 4.88 0.09 Cr-51 384 372 16.4 6.21 11.2 0.29 Cs-134 199 200 8.89 3.34 6.27

-0.10 Cs-137 262 250 4.79 4.18 5.16 0.88 Fe-59 202 200 9.38 3.35 7.60 0.11 I-131 99.8 95.0 7.88 1.59 11.4 0.42 Mn-54 189 180 10.3 3.01 7.51 0.66 Zn-65 285 270 14.3 4.51 7.75 0.70 Ce-141 155 150 7.47 2.51 7.87 0.44 GROSS BETA ANALYSIS OF WATER SAMPLE (PCI/LITER)

Gross Beta 6/4/2020 275 240 15.0 4.01 6.54 1.96 GAMMA ISOTOPIC ANALYSIS OF WATER SAMPLES (PCI/LITER)

Co-58 6/4/2020 104 102 3.62 1.70 7.03 0.30

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report 27 l P a g e Table 3-7. Interlaboratory Comparison Summary Analysis or Radionuclide Date Prepared Reported Average Known Value Standard Deviation EL Uncertainty Analytics (3S)

Percent Coefficient of Variation Normalized Deviation Co-60 199 198 8.46 3.30 6.18

.12 Cr-51 287 259 18.3 4.33 12.68

.77 Cs-134 153 148 3.91 2.47 5.07 0.68 Cs-137 115 105 4.66 1.75 7.15 1.24 Fe-59 98.2 102 4.20 1.71 8.60

-0.45 I-131 84.2 80.5 4.46 1.34 8.59 0.51 Mn-54 146 135 3.63 2.26 6.03 1.23 Zn-65 252 227 8.69 3.80 6.84 1.43 Ce-141 122 117 3.58 1.96 7.03 0.60 TRITIUM ANALYSIS OF WATER SAMPLES (PCI/LITER)

H-3 9/10/2020 11700 12000 57.74 201 2.08

-1.38 GAMMA ISOTOPIC ANALYSIS OF VEGETATION SAMPLES (PCI/LITER)

Co-58 6/4/2020 152 159 11.8 2.65 11.2

-0.41 Co-60 291 309 10.4 5.16 6.24

-1.02 Cr-51 431 405 37.8 6.77 19.5 0.31 Cs-134 224 231 9.55 3.86 6.84

-0.45 Cs-137 163 164 7.47 2.74 8.89

-0.07 Fe-59 157 160 10.8 2.67 13.0

-0.15 Mn-54 213 212 13.4 3.53 9.13 0.07 Zn-65 377 355 12.6 5.94 8.71 0.68 Ce-141 192 184 7.53 3.07 8.93 0.44

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report 28 l P a g e 3.8 Groundwater To ensure compliance with NEI 07-07 (Industry Ground Water Protection Initiative - Final Guidance Document), Southern Nuclear implemented a groundwater protection program which is procedualized in Nuclear Management Procedure, Radiological Groundwater Protection Program. The procedure contains detailed site-specific monitoring plans, program technical bases, and communications protocol (to ensure that radioactive leaks and spills are addressed and communicated appropriately). In an effort to prevent future leaks of radioactive material to groundwater, SNC plants have established buried piping and tanks inspection programs. The only change made to the Groundwater Protection Program in 2020 was that monitoring well R-6 was relocated due to site construction activities; the new location still monitors the same dilution line.

Plant Farley maintained the following wells (Table 3-8), which were sampled at a frequency that satisfied the requirements of NEI 07-07. The analytical results for 2020 were all within regulatory limits specified within this report. Table 3-9 contains the results of the Groundwater Protection Program results for tritium (in pCi/L). See Map A-4 in Appendix A for well locations Table 3-8. Groundwater Protection Program Locations Well Aquifer Monitoring Purpose R1 Major Shallow aquifer Dilution line R2 Major Shallow aquifer Dilution line R3 Major Shallow aquifer Unit 2 RWST R4 Major Shallow aquifer Unit 1 RWST R5 Major Shallow aquifer Dilution line R6 Major Shallow aquifer Dilution line R7 Major Shallow aquifer Dilution line R8 Major Shallow aquifer Dilution line R9 Major Shallow aquifer Dilution line R10 Major Shallow aquifer Dilution line R11 Major Shallow aquifer Background 1 R13 Major Shallow aquifer Dilution line R14 Major Shallow aquifer Background 2 PW#2 Drinking water Production Well #2 Supply PW#3 Drinking water Production Well #3 Supply PW#4 Drinking water Production Well #4 Supply CW West Drinking water Construction Well West Supply CW East Drinking water Construction Well East Supply FRW Drinking water Firing Range Well Supply SW-1 N/A Background 3, Service Water Pond

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report 29 l P a g e Table 3-9. Groundwater Protection Program Results Well June 2020 November 2020 R1 NDM NDM R2 89 NDM R3 527 571 R4 NDM NDM R5 NDM NDM R6 NS NS R7 NDM NDM R8 NDM NDM R9 136 NDM R10 NDM NDM R11 NDM NDM R13 NDM NDM R14 89 NDM SW-1 NDM NDM E Yard NDM NDM WSW-FR NDM NDM WSW-CE 268 NDM WSW-4 122 NDM SE Yard NDM NDM WSW-2 NDM NDM Units in pCi/L NDM - No Detectable Measurements NS - Not Sampled

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report 30 l P a g e 4 SURVEY SUMMARIES 4.1 Land Use Census In accordance with ODCM 4.1.2, a land use census was conducted in December 2020 that circumscribed each of the 16 compass sectors within a five-mile radius in order to verify the locations of the nearest radiological receptor. The land use census results are tabulated in Table 4.1. The 2020 land uses census results, shown in Table 4-1, indicated that a revision to the ODCM will not be required.

Table 4-1. Land Use Census Results Sector Residence Milk Animal*

Distance in Miles to the Nearest Location in Each Sector N

2.6 None NNE 2.5 None NE 2.4 None ENE 2.4 None E

2.8 None ESE 3.0 None SE 3.4 None SSE None (>5.0)

None S

4.3 None SSW 2.9 None SW 1.2 None WSW 2.4 None W

1.3 None WNW 2.1 None NW 1.5 None NNW 3.4 None

A milk animal is a cow or goat producing milk for human consumption.

4.2 Chattahoochee River Survey A previous river survey performed for Plant Farley identified a potential use of water from the Chattahoochee River, downstream of the plant discharge at approximately 2 miles. In July 2013, the Georgia Department of Natural Resources issued a farm use permit to withdraw from the Chattahoochee River to the Nature Conservancy of Georgia. The Nature Conservancy of Georgia leases property along the river for agricultural and grazing purposes to a private farm family, and water from the river could potentially be used for crop irrigation. At the time of this report, no water has been withdrawn and used for crop irrigation by the landowners.

In the fall of 2020, the Georgia Environmental Protection Division (EPD), Alabama Department of Environmental Management (ADEM) and Alabama Department of Economic and Community

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report 31 l P a g e Affairs (ADECA) was contacted to request any information about river use permits that had been issued in the area near the plant. No additional withdrawal permits or intake locations had been added at the time of the survey.

4.3 Meteorological Report Summary A consultant analyzes the meteorological tower data collected throughout the year and compares it to previous results. In 2020, the meteorological tower results were comparable to previous years, as related to precipitation amounts (62.61) and wind direction (from northwest at 10m, from the southwest at 45m). Additionally, the meteorological data meets the quality requirements, therefore, no changes to REMP monitoring locations are warranted.

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report 32 l P a g e 5 CONCLUSIONS This report has confirmed SNCs conformance with the requirements of Chapter 4 of the ODCM and the objectives were to:

1) Determine the levels of radiation and the concentrations of radioactivity in the environs; and

2) Assess the radiological impact (if any) to the environment due to the operation of the FNP.

Based on the 2020 activities associated with the REMP, SNC offers the following conclusions:

x Samples were collected and there were no deviations or anomalies that negatively affected the quality of the REMP x Land use census and river survey did not require any changes x Analytical results were below reporting levels x These values were consistent with historical results which indicate no adverse radiological environmental impacts associated with the operation of FNP

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report Appendix A APPENDIX A Maps

Legend:

Indicator Staons -

Drawn by:

Appendix A Map A-1 C. Groce 5 Miles S

SW W

NW N

NE E

SE

Joseph M. Farley Nuclear Plant

ZŽogical Environmental Report REMP Stations in Plant Vicinity

Legend:

Indicator Staons -

Control Staons -

Drawn by:

Appendix A Map A-2 C. Groce 10 Miles

Joseph M. Farley Nuclear Plant

ZŽogical Environmental Report REMP Stations tD

Drawn by:

Appendix A Map A-3 C. Groce Legend:

Control Staons -

Joseph M. Farley Nuclear Plant

ZŽogical Environmental Report REMP

^Ž>ŽŽ

Legend:

Groundwater Wells -

Drawn by:

Appendix A Map A-4 C. Groce

Joseph M. Farley Nuclear Plant

ZŽogical Environmental Report REMP

&'Žt

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report Appendix B APPENDIX B Errata

PLANT FARLEY EY 2020 FNP Annual Radiological Environmental Operating Report Appendix B There are no errata for the 2020 reporting year.

Edwin I. Hatch Nuclear Plant - Units 1 & 2 Joseph M. Farley Nuclear Plant - Units 1 & 2 Vogtle Electric Generating Plant - Units 1 & 2 Annual Radiological Environmental Operating Reports for 2020 Vogtle Annual Radiological Environmental Operating Report for 2020

VOGTLE ELECTRIC GENERATING PLANT 2020 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

PLANT VOGTLE 2020 VEGP Annual Radiological Environmental Operating Report i l P a g e TABLE OF CONTENTS 1

Introduction.................................................................................................. 1 2

REMP Description......................................................................................... 2 3

Results Summary.......................................................................................... 9 3.1 Airborne Particulates............................................................................................ 18 3.1.1 Gross Beta............................................................................................................ 18 3.1.2 Gamma Particulates and Airborne Radioiodine.................................................. 20 3.2 Direct Radiation.................................................................................................... 20 3.3 Biological Media.................................................................................................... 23 3.3.1 Milk...................................................................................................................... 23 3.3.2 Vegetation............................................................................................................ 23 3.3.3 Fish....................................................................................................................... 24 3.3.3.1 Anadromous Species............................................................................................ 24 3.3.3.2 Commercially or Recreationally Important Species............................................ 24 3.3.4 Biological Media Summary.................................................................................. 24 3.4 Drinking Water...................................................................................................... 25 3.5 River Water........................................................................................................... 26 3.6 Sediment............................................................................................................... 27 3.7 Interlaboratory Comparison Program.................................................................. 27 3.8 Groundwater......................................................................................................... 31 4

Survey Summaries...................................................................................... 33 4.1 Land Use Census................................................................................................... 33 4.2 Savannah River Survey.......................................................................................... 33 4.3 Meteorological Report Summary......................................................................... 34 5

Conclusions................................................................................................. 35 Tables Table 2-1. Summary Description of Radiological Environmental Monitoring Program............................... 3 Table 2-2. Radiological Environmental Sampling Locations........................................................................ 6 Table 3-1. Radiological Environmental Monitoring Program Annual Summary........................................ 11 Table 3-2. Reporting Levels (RL)................................................................................................................. 16 Table 3-3. Anomalies and Deviations from Radiological Environmental Monitoring Program................. 17 Table 3-4. Average Weekly Gross Beta Air Concentration......................................................................... 19 Table 3-5. Average Quarterly Exposure from Direct Radiation................................................................. 21 Table 3-6. Interlaboratory Comparison Limits........................................................................................... 28 Table 3-7. Interlaboratory Comparison Summary..................................................................................... 29 Table 3-8. Groundwater Protection Program Locations............................................................................ 31 Table 3-9. Groundwater Protection Program Tritium Results (pCi/L)....................................................... 32 Table 4-1. Land Use Census Results........................................................................................................... 33

PLANT VOGTLE 2020 VEGP Annual Radiological Environmental Operating Report ii l P a g e Figures Figure 3-1. Historic Average Weekly Gross Beta Air Concentration........................................................... 19 Figure 3-2. Average Quarterly Exposure from Direct Radiation................................................................. 22 Figure 3-3. 2020 Average Exposure from Direct Radiation........................................................................ 22 Figure 3-4. 2020 Biological Media Average Cs-137 Concentrations........................................................... 24 Figure 3-5. 2020 Average Gross Beta Concentration in Raw and Finished Drinking Water....................... 26 Figure 3-6. 2020 Average Tritium Concentrations in River, Raw Drinking, and Finished Drinking Water.. 27 Appendix A - Maps A REMP Stations in Plant Vicinity A REMP Stations within 10 Miles A Extended REMP Stations A Facility Groundwater Wells Appendix B - Errata Appendix C - Data

PLANT VOGTLE 2020 VEGP Annual Radiological Environmental Operating Report iii l P a g e LIST OF ACRONYMS EPA Environmental Protection Agency GPC Georgia Power Company GPCEL Georgia Power Company Environmental Laboratory ICP Interlaboratory Comparison Program MDC Minimum Detectable Concentration MDD Minimum Detectable Difference MWt MegaWatts Thermal NA Not Applicable NDM No Detectable Measurement(s)

NEI Nuclear Energy Institute NRC Nuclear Regulatory Commission ODCM Offsite Dose Calculation Manual OSL Optically Stimulated Luminescence PWR Pressurized Water Reactor REMP Radiological Environmental Monitoring Program RL Reporting Level RM River Mile SNC Southern Nuclear Operating Company SRS Savannah River Site TLD Thermoluminescent Dosimeter TS Technical Specification VEGP Alvin W. Vogtle Electric Generating Plant

PLANT VOGTLE 2020 VEGP Annual Radiological Environmental Operating Report 1 l P a g e 1 INTRODUCTION The Radiological Environmental Monitoring Program (REMP) was conducted in accordance with Chapter 4 of the Offsite Dose Calculation Manual (ODCM). The REMP activities for 2020 are reported herein in accordance with Technical Specification (TS) Section 5.6.2 and ODCM Section 7.1.

The objectives of the REMP were to:

1) Determine the levels of radiation and the concentrations of radioactivity in the environs and;

2) Assess the radiological impact (if any) to the environment due to the operation of the Alvin W.

Vogtle Electric Generating Plant (VEGP).

The assessments included comparisons between results of analyses of samples obtained at locations where radiological levels were not expected to be affected by plant operation (control stations), areas of higher population (community stations), and at locations where radiological levels were more likely to be affected by plant operation (indicator stations), as well as comparisons between preoperational and operational sample results.

VEGP is owned by Georgia Power Company (GPC), Oglethorpe Power Corporation, the Municipal Electric Authority of Georgia, and the City of Dalton, Georgia. It is located on the southwest side of the Savannah River approximately 23 river miles upstream from the intersection of the Savannah River and U.S. Highway 301. The site is in the eastern sector of Burke County, Georgia, across the river from Barnwell County, South Carolina. The VEGP site is directly across the Savannah River from the Department of Energy Savannah River Site (SRS). Unit 1, a Westinghouse Electric Corporation Pressurized Water Reactor (PWR), with a licensed core thermal power of 3,626 MegaWatts (MWt), received its operating license on January 16, 1987 and commercial operation started on May 31, 1987. Unit 2, also a Westinghouse PWR rated for 3,626 MWt, received its operating license on February 9, 1989 and began commercial operation on May 19, 1989. Both units were relicensed on June 3, 2009.

The pre-operational stage of the REMP began with initial sample collections in August of 1981.

The transition from the pre-operational to the operational stage of the REMP occurred as Unit 1 reached initial criticality on March 9, 1987.

x A description of the REMP is provided in Section 2 of this report x Section 3 provides a summary of the results, an assessment of any radiological impacts to the environment, and the results from the interlaboratory comparison x A summary of the land use census and the river survey are included in Section 4 x Conclusions are included in Section 5

PLANT VOGTLE 2020 VEGP Annual Radiological Environmental Operating Report 2 l P a g e 2 REMP DESCRIPTION The following section provides a description of the sampling and laboratory protocols associated with the REMP. Table 2-1 provides a summary of the sample types to be collected and the analyses to be performed in order to monitor the airborne, direct radiation, waterborne and ingestion pathways, and also summarizes the collection and analysis frequencies (in accordance with ODCM Section 4.2). Table 2-2 provides specific information regarding the station locations, their proximity to the plant, and exposure pathways. Additionally, Appendix A of this report provides Maps A-1 through A-4 that depict the georeferenced location of sampling stations are.

Appendix B contains any Errata from previous reports, no Errata was identified for inclusion in this 2020 report. Analytical results for each of the analyzed REMP sampling points are provided in Appendix C.

During 2020 a contractor through Southern Nuclear Operating Company (SNC) provided services for the collection of all of the REMP samples. The Georgia Power Central Environmental Laboratory (GPCEL) analyzed all REMP samples.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 3 l P a g e Table 2-1. Summary Description of Radiological Environmental Monitoring Program Exposure Pathway and/or Number of Representative Samples and Sample Locations Sampling/Collection Frequency Type/Frequency of Analysis Direct Radiation 40 routine monitoring stations with two or more dosimeters placed as follows:

An inner ring of stations, one in each compass sector in the general area of the site boundary; An outer ring of stations, one in each compass sector at approximately five miles from the site; and Special interest areas, such as population centers, nearby recreation areas, and control stations Quarterly Gamma dose/Quarterly Airborne Radioiodine and Particulates Samples from seven locations:

Five locations close to the site boundary in different sectors; A community having the highest calculated annual average ground level D/Q; A control location near a population center at a distance of about 14 miles Continuous sampler operation with sample collection weekly, or more frequently if required by dust loading Radioiodine canister: I-131 analysis, weekly Particulate sampler: Gross beta analysis1 following filter change and gamma isotopic analysis2 of composite (by location)

/Quarterly Waterborne Surface3 One sample upriver Two samples downriver Composite sample over one month period4 Gamma isotopic analysis2, monthly Composite for tritium analysis/Quarterly

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 4 l P a g e Table 2-1. Summary Description of Radiological Environmental Monitoring Program Exposure Pathway and/or Number of Representative Samples and Sample Locations Sampling/Collection Frequency Type/Frequency of Analysis Drinking Two samples at each of the three nearest water treatment plants that could be affected by plant discharges Two samples at a control location Composite sample of river water near the intake of each water treatment plant over two week period4 when I-131 analysis is required for each sample; monthly composite otherwise; and grab sample of finished water at each water treatment plant every two weeks or monthly, as appropriate I-131 analysis on each sample when the dose calculated for the consumption of the water is greater than 1 mrem per year5. Composite for gross beta and gamma isotopic analysis2 on raw water/Monthly. Gross beta, gamma isotopic and I-131 analyses on grab sample of finished water/Monthly. Composite for tritium analysis on raw and finished water/Quarterly Groundwater See Table 3-8 and Map A-4 for well locations. These are part of the GWPP (NEI 07-07).

Frequency based on GWPP.

Tritium, gamma isotopic, and field parameters of each sample; hard-to-detects based on tritium and gamma results Shoreline Sediment One sample from downriver area with existing or potential recreational value One sample from upriver area with existing or potential recreational value Semiannually Gamma isotopic analysis2/Semiannually Ingestion Milk Two samples from milking animals6 one from an indicator station at a distance of approximately 5.5 miles, and a control location at a distance of about 10 miles or more Bimonthly Gamma isotopic analysis2,7/Bimonthly

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 5 l P a g e Table 2-1. Summary Description of Radiological Environmental Monitoring Program Exposure Pathway and/or Number of Representative Samples and Sample Locations Sampling/Collection Frequency Type/Frequency of Analysis Fish At least one sample of any commercially or recreationally important species near the plant discharge At least one sample of any commercially or recreationally important species in an area not influenced by plant discharges At least one sample of any anadromous species near the plant discharge Semiannually During spring spawning season Gamma isotopic analysis2 on edible portions/Semiannually Gamma isotopic analysis2 on edible portions/Annually.

Grass or Leafy Vegetation One sample from two onsite locations near the site boundary in different sectors One sample from a control location at a distance of about 17 miles Monthly during growing season Gamma isotopic analysis2,7Monthly Notes:

1Airborne particulate sample filters were analyzed for gross beta radioactivity 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or more after sampling to allow for radon and thoron daughter decay. If gross beta activity in air particulate samples was greater than 10 times the yearly mean of control samples, gamma isotopic analysis was performed on the individual samples.

2Gamma isotopic analysis means the identification and quantification of gamma-emitting radionuclides that may be attributable to the effluents from the facility.

3Upriver sample was taken at a distance beyond significant influence of the discharge. Downriver samples were taken beyond but near the mixing zone.

4Composite sample aliquots were collected at time intervals that were very short (e.g., hourly) relative to the compositing period (e.g., monthly) to ensure obtaining a representative sample.

5The dose was calculated for the maximum organ and age group, using the methodology and parameters in the ODCM.

6A milking animal is a cow or goat producing milk for human consumption.

7If the gamma isotopic analysis is not sensitive enough to meet the Minimum Detectable Concentration (MDC) for I-131, a separate analysis for I-131 may be performed.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 6 l P a g e Table 2-2. Radiological Environmental Sampling Locations Station Number Station Type Descriptive Location Direction1 Distance (miles)1 Radiation Sample Type 1

Indicator River Bank N

1.1 Direct 2

Indicator River Bank NNE 0.8 Direct 3

Indicator Discharge Area NE 0.6 Airborne 3

Indicator River Bank NE 0.7 Direct 4

Indicator River Bank ENE 0.8 Direct 5

Indicator River Bank E

1.0 Direct 6

Indicator Plant Wilson ESE 1.1 Direct 7

Indicator Simulator Building SE 1.7 Airborne, Direct, Vegetation 8

Indicator River Road SSE 1.1 Direct 9

Indicator River Road S

1.1 Direct 10 Indicator Met Tower SSW 0.9 Airborne 10 Indicator River Road SSW 1.1 Direct 11 Indicator River Road SW 1.2 Direct 12 Indicator River Road WSW 1.2 Airborne, Direct 13 Indicator River Road W

1.3 Direct 14 Indicator River Road WNW 1.8 Direct 15 Indicator Hancock Landing Road NW 1.5 Direct, Vegetation 16 Indicator Hancock Landing Road NNW 1.4 Airborne, Direct 17 Other Sav. River Site (SRS), River Road N

5.4 Direct 18 Other SRS, D Area NNE 5.0 Direct 19 Other SRS, Road A.13 NE 4.6 Direct 20 Other SRS, Road A.13.1 ENE 4.8 Direct 21 Other SRS, Road A.17 E

5.3 Direct 22 Other River Bank ESE 5.2 Direct

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 7 l P a g e Table 2-2. Radiological Environmental Sampling Locations Station Number Station Type Descriptive Location Direction1 Distance (miles)1 Radiation Sample Type 23 Other River Road SE 4.6 Direct 24 Other Chance Road SSE 4.9 Direct 25 Other Chance Road near Highway 23 S

5.2 Direct 26 Other Highway 23 and Ebenezer Church Road SSW 4.6 Direct 27 Other Highway 23 opposite Boll Weevil Road SW 4.7 Direct 28 Other Thomas Road WSW 5.0 Direct 29 Other Claxton-Lively Road W

5.1 Direct 30 Other Nathaniel Howard Road WNW 5.0 Direct 31 Other River Road at Allens Chapel Fork NW 5.0 Direct 32 Other River Bank NNW 4.7 Direct 35 Other Girard SSE 6.6 Airborne, Direct 36 Control GPC Waynesboro Op. HQ WSW 13.9 Airborne, Direct 37 Control Substation, Waynesboro, GA WSW 16.7 Direct, Vegetation 43 Other Employees Rec. Center SW 2.2 Direct 47 Control Oak Grove Church SE 10.4 Direct 48 Control McBean Cemetery NW 10.2 Direct 51 Control SGA School, Sardis, GA S

11.0 Direct 52 Control Oglethorpe Substation; Alexander, GA SW 10.7 Direct 80 Control Augusta Water Treatment Plant NNW 29.0 Drinking Water2 81 Control Sav. River N

2.5 Fish3 Sediment4 82 Control Sav. River (RM 151.2)

NNE 0.8 River Water 83 Indicator Sav. River (RM 150.4)

ENE 0.8 River Water Sediment4 84 Other Sav. River (RM 149.5)

ESE 1.6 River Water 85 Indicator Sav. River ESE 4.3 Fish3 87 Indicator Beaufort-Jasper County Water Treatment Plant SE 76 Drinking Water5

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 8 l P a g e Table 2-2. Radiological Environmental Sampling Locations Station Number Station Type Descriptive Location Direction1 Distance (miles)1 Radiation Sample Type 88 Indicator Cherokee Hill Water Treatment Plant, Port Wentworth, GA SSE 72 Drinking Water6 89 Indicator Purrysburg Water Treatment Plant; Purrysburg, SC SSE 76 Drinking Water7 98 Control W.C. Dixon Dairy SE 9.8 Milk8 101 Indicator Girard Dairy S

5.5 Milk8 102 Control Seven Oaks Dairy/Milky Way Dairy W

7.5/16.0 Milk8 Notes:

1Direction and distance were determined from a point midway between the two reactors.

2The intake for the Augusta Water Treatment Plant was located on the Augusta Canal. The entrance to the canal was at River Mile (RM) 207 on the Savannah River. The canal effectively parallels the river. The intake to the pumping station was about 4 miles down the canal.

3A 5-mile stretch of the river was generally needed to obtain adequate fish samples. Samples were normally gathered between RM 153 and 158 for upriver collections and between RM 144 and 149.4 for downriver collections.

4Sediment was collected at locations with existing or potential recreational value. Because high water, shifting of the river bottom, or other reasons could cause a suitable location for sediment collections to become unavailable or unsuitable, a stretch of the river between RM 148.5 and 150.5 was designated for downriver collections while a stretch between RM 153 and 154 was designated for upriver collections. In practice, collections were normally made at RM 150.2 for downriver collections and RM 153.3 for upriver collections.

5 DELETED THIS SAMPLE LOCATION IN 2014 (LDCR 2014004) The intake for the Beaufort-Jasper County Water Treatment Plant was located at the end of canal that began at RM 39.3 on the Savannah River. This intake was about 16 miles by line of sight down the canal from its beginning on the Savannah River.

6The intake for the Cherokee Hill Water Treatment Plant was located on Abercorn Creek which is about one and a quarter creek miles from its mouth on the Savannah River at RM 29.

7The intake for the Purrysburg Water Treatment Plant was located on the same canal as the Beaufort-Jasper Water Treatment Plant. The Purrysburg intake was closer to the Savannah River at the beginning of the canal.

8Girard Dairy was considered an indicator station since it is the closest dairy to the plant (5.5 miles). Dixon Dairy went out of business in June 2009 and Seven Oaks Dairy (7.5 miles) was added as a replacement and was considered a control station even though a control station is typically 10 miles or greater. Milky Way Dairy was identified and added to the ODCM in 2015 to replace Seven Oaks since it is at 16.0 miles from the plant.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 9 l P a g e 3 RESULTS

SUMMARY

Included in this section are statistical evaluations of the laboratory results, comparison of the results by media, and a summary of the anomalies and deviations. Overall, 2,772 analyses were performed across nine exposure pathways. Tables and figures are provided throughout this section to provide an enhanced presentation of the information.

In recent history, man-made nuclides have been released into the environment and have resulted in wide spread distribution of radionuclides across the globe. For example, atmospheric nuclear weapons tests from the mid-1940s through 1980 distributed man-made nuclides around the world. The most recent atmospheric tests in the 1970s and in 1980 have had a significant impact upon the radiological concentrations found in the environment prior to and during pre-operation, and through early operation. Some long-lived radionuclides, such as Cs-137, continue to be detected and a portion of these detections are believed to be attributed to the nuclear weapons tests.

Additionally, data associated with certain radiological effects created by off-site events have been removed from the historical evaluation, this includes: the nuclear atmospheric weapon test in the fall of 1980; the Chernobyl incident in the spring of 1986; abnormal releases from the Savannah River Site (SRS) during 1987 and 1991; and the Fukushima event in the spring of 2011.

As indicated in ODCM 7.1.2.1, the results for naturally occurring radionuclides that are also found in plant effluents must be reported along with man-made radionuclides. Historically, the radionuclide Be-7, which occurs abundantly in nature, is often detected in REMP samples, and occasionally detected in the plants liquid and gaseous effluents. In 2020, Be-7 was not detected in any plant effluents and therefore it was not included in this report When it is detected in plant effluents and REMP samples, it is also included in the REMP results. The Be-7 detected in select REMP samples likely represents naturally occurring and/or background conditions.

As part of the data evaluation process, SNC considered the impact of the non-plant associated nuclides along with a statistical evaluation of the REMP data. The statistical evaluations included within this report include the Minimum Detectable Concentration (MDC), the Minimum Detectable Difference (MDD), and Chauvenets Criterion as described below.

Minimum Detectable Concentration The minimum detectable concentration is defined as an estimate of the true concentration of an analyte required to give a specified high probability that the measured response will be greater than the critical value.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 10 l P a g e Minimum Detectable Difference The Minimum Detectable Difference (MDD) compares the lowest significant difference (between the means) of a control station, versus an indicator station or a community station, that can be determined statistically at the 99% Confidence Level. A difference in mean values which was less than the MDD was considered to be statistically indiscernible.

The MDD is used to evaluate the statistical proximity between the indicator/community and control sample results, but generally, any results that are less than the MDC and/or Reporting Levels (RL) are considered to have minimal impact on the surrounding environs.

Chauvenets Criterion All results were tested for conformance with Chauvenet's Criterion (G. D. Chase and J. L.

Rabinowitz, Principles of Radioisotope Methodology, Burgess Publishing Company, 1962, pages 87-90) to identify values which differed from the mean of a set by a statistically significant amount. Identified outliers were investigated to determine the reason(s) for the difference. If equipment malfunction or other valid physical reasons were identified as causing the variation, the anomalous result was excluded from the data set as non-representative.

Table 3-1 summarizes and evaluates the annual results for the indicator stations against the control and community stations (where applicable) and as appropriate, results were evaluated against the MDCs (listed in Table 3-1) and RLs (listed in Table 3-2). The required MDCs were achieved during laboratory sample analysis. The 2020 results were compared with previous results, including those obtained during pre-operation. No data points were excluded for violating Chauvenets Criterion.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 11 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Location Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f)

Mean (b), Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Airborne Particulates (fCi/m3)

Gross Beta 361 10 22.5 10.1-50.4 (255/255)

River Road WSW 1.2 mi.

23.3 16.7-41.4 (51/51) 20.6 10.1-38.9 (51/51) 21.0 11.8-41.4 (51/51)

Gamma Isotopic 28 I-131 70 NDM(c)

NDM NDM NDM Cs-134 50 NDM NDM NDM NDM Cs-137 60 NDM NDM NDM NDM Airborne Radioiodine (fCi/m3)

I-131 364 70 NDM NDM NDM NDM Direct Radiation (mR/91 days)

Gamma Dose 160 10.2 2.2-19.3 (64/64)

SRS, Road A.13.1 ENE 4.8 mi.

16.1 13.7-20.8 (4/4) 11.4 4.4-20.8 (72/72) 11.3 6.2-20.5 (24/24)

Milk (pCi/l)

Gamma Isotopic 50 I-131 1

NDM NDM NDM Cs-134 15 NDM NDM NDM Cs-137 18 1.6 1.5-1.7 (4/21)

Girard Dairy S 5.5 mi 1.6 1.5-1.7 (4/21) 1.3 1.3-1.3 (1/9)

Ba-140 60 NDM NDM NDM La-140 15 NDM NDM NDM Vegetation (pCi/kg-wet)

Gamma Isotopic 36

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 12 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Location Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f)

Mean (b), Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

I-131 60 NDM NDM NDM Cs-134 60 NDM NDM NDM Cs-137 80 NDM NDM NDM River Water (pCi/l)

Gamma Isotopic 36 Be-7 124(d)

NDM NDM NDM NDM Mn-54 15 NDM NDM NDM NDM Fe-59 30 NDM NDM NDM NDM Co-58 15 NDM NDM NDM NDM Co-60 15 NDM NDM NDM NDM Zn-65 30 NDM NDM NDM NDM Zr-95 30 NDM NDM NDM NDM Nb-95 15 NDM NDM NDM NDM I-131 1

NDM NDM NDM NDM Cs-134 15 NDM NDM NDM NDM Cs-137 18 NDM NDM NDM NDM Ba-140 60 NDM NDM NDM NDM La-140 15 NDM NDM NDM NDM Tritium 12 2000 1095 185-1600 (4/4)

Savannah River (RM 150.4) ENE 0.8 mi 1095 185-1600 (4/4) 323 0-634 (3/4) 119 0-178 (2/4)

Raw Water Near Intakes to Water Treatment Plants (pCi/l)

Gross Beta 35 4

2.8 0.9-6.1 (20/20)

Cherokee Hill Water Treatment Plant, Port Wentworth, GA SSE 72 mi.

3.2 0.9-6.1 (12/12) 2.0 0.6-3.5 (11/11)

Gamma Isotopic 36

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 13 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Location Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f)

Mean (b), Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Be-7 124(d)

NDM NDM NDM Mn-54 15 NDM NDM NDM Fe-59 30 NDM NDM NDM Co-58 15 NDM NDM NDM Co-60 15 NDM NDM NDM Zn-65 30 NDM NDM NDM Zr-95 30 NDM NDM NDM Nb-95 15 NDM NDM NDM I-131 1

NDM NDM NDM Cs-134 15 NDM NDM NDM Cs-137 18 NDM NDM NDM Ba-140 60 NDM NDM NDM La-140 15 NDM NDM NDM Tritium 12 2000 302 111-550 (8/8)

Cherokee Hill Water Treatment Plant, Port Wentworth, GA SSE 72 325 227-549 (10/10) 137 0-157 (2/4)

Finished Water at Water Treatment Plants (pCi/l)

Gross Beta 35 4

2.5 0-1.8 (30/30)

Cherokee Hill Water Treatment Plant, Port Wentworth, GA SSE 72 2.6 0.96.5 (10/10) 2.3 1.1-4.1 (11/11)

Gamma Isotopic 36 Be-7 124(d)

NDM NDM NDM Mn-54 15 NDM NDM NDM Fe-59 30 NDM NDM NDM Co-58 15 NDM NDM NDM Co-60 15 NDM NDM NDM Zn-65 30 NDM NDM NDM

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 14 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Location Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f)

Mean (b), Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Zr-95 30 NDM NDM NDM Nb-95 15 NDM NDM NDM I-131 1

NDM NDM NDM Cs-134 15 NDM NDM NDM Cs-137 18 NDM NDM NDM Ba-140 60 NDM NDM NDM La-140 15 NDM NDM NDM Tritium 12 2000 315 116-584 (8/8)

Cherokee Hill Water Treatment Plant, Port Wentworth, GA SSE 72 324 158-517 (4/4) 105 0-136 (4/4)

Anadromous Fish (pCi/kg-wet)

Gamma Isotopic 2

Be-7 655(d)

NA NDM Mn-54 130 NA NDM Fe-59 260 NA NDM Co-58 130 NA NDM Co-60 130 NA NDM Zn-65 260 NA NDM Cs-134 130 NA NDM Cs-137 150 NA NDM Fish (pCi/kg-wet)

Gamma Isotopic 8

Be-7 655(d)

NDM NDM Mn-54 130 NDM NDM Fe-59 260 NDM NDM Co-58 130 NDM NDM

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 15 l P a g e Table 3-1. Radiological Environmental Monitoring Program Annual Summary Medium or Pathway Sampled (Unit of Measurement)

Type and Total Number of Analyses Performed Minimum Detectable Concentration (MDC) (a)

Indicator Location Mean (b),

Range (Fraction)

Location with the Highest Annual Mean Other Stations (f)

Mean (b), Range (Fraction)

Control Locations Mean (b), Range (Fraction)

Name Distance and Direction Mean (b), Range (Fraction)

Co-60 130 NDM NDM Zn-65 260 NDM NDM Cs-134 130 NDM NDM Cs-137 150 39.2 0-40.7 2/7 Savannah River, ESE, 4.3 mi.

39.2 0-40.7 2/2 35.6 0-48.9 2/6 Sediment (pCi/kg-dry)

Gamma Isotopic 3

Co-58 N/A NDM NDM Co-60 N/A NDM NDM Cs-134 150 NDM NDM Cs-137 180 114 0-114 1/2 Sav River N 2.5 mi.

120 0-120 1/2 120 0-120 1/2 Notes:

(a)The MDC is defined in ODCM 10.1. Except as noted otherwise, the values listed in this column are the detection capabilities required by ODCM Table 4-3.

The values listed in this column are a priori (before the fact) MDCs. In practice, the a posteriori (after the fact) MDCs are generally lower than the values listed.

(b) Mean and range were based upon detectable measurements only. The fraction of all measurements at a specified location that are detectable is placed in parenthesis.

(c) No Detectable Measurement(s) (NDM).

(d) The Georgia Power Company Environmental Laboratory has determined that this value may be routinely attained under normal conditions. No value is provided in ODCM Table 4-3.

(e) Item 3 of ODCM Table 4-1 implies that an I-131 analysis was not required to be performed on water samples when the dose calculated from the consumption of water was less than 1 mrem per year. However, I-131 analyses were performed on the finished drinking water samples.

(f) Other stations, as identified in the Station Type column of Table 2-2, are Community and/or Special stations.

Not Applicable (NA) (sample or analysis not required)

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 16 l P a g e Table 3-2. Reporting Levels (RL)

Analysis Water (pCi/l) Airborne Particulate or Gases (fCi/m3)

Fish (pCi/kg-wet)

Milk (pCi/l)

Grass or Leafy Vegetation (pCi/kg-wet)

H-3 20,000a Mn-54 1,000 30,000 Fe-59 400 10,000 Co-58 1,000 30,000 Co-60 300 10,000 Zn-65 300 20,000 Zr-95 400 Nb-95 700 I-131 2b 900 3

100 Cs-134 30 10,000 1,000 60 1,000 Cs-137 50 20,000 2,000 70 2,000 Ba-140 200 300 La-140 100 400 a This is the 40 CFR 141 value for drinking water samples. If no drinking water pathway exists, a value of 30,000 may be used.

b If no drinking water pathway exists, a value of 20 pCi/l may be used.

In accordance with ODCM 4.1.1.2.1, deviations from the required sampling schedule were permitted, if samples were unobtainable due to hazardous conditions, unavailability, inclement weather, equipment malfunction or other just reasons. Deviations from conducting the REMP sampling (as described in Table 2-1) are summarized in Table 3-3 along with their causes and resolution.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 17 l P a g e Table 3-3. Anomalies and Deviations from Radiological Environmental Monitoring Program Collection Period Affected Samples Anomaly (A)* or Deviation (D)**

Cause Resolution March 2020 River Water (D) Inability to safely access the river This was due to the extremely high river levels in the Savannah River. The high river levels have closed many of the boat ramps in the area and they also pose a high safety risk.

The sampling activities resumed in April 2020.

April 2020 Milk (Milky Way Dairy)

(D) Natural disaster/weather event Tornado caused extensive damage to the Milky Way Dairy Samples were not collected for several months as the dairy recovered from the destruction.

August 2020 Water (D) Sample collected but out of hold time Shipping error.

There was no opportunity to resample by the time the vendor learned about it from the Georgia Power Lab.

August 2020 Air Sample (Waynesboro)

(D) Insufficient sample collected Electrical failure (multi-outlet failure).

Outlet was troubleshot and repaired/replaced.

September 2020 Air Sample (River Road)

(D) Insufficient sample collected Pump failure.

Pump replaced; sampling station returned to service.

December 2020 Air Sample (D) Time Counter deficiency The simulator air cabinet time counter did not register time elapsed this month due to plug not holding in a worn receptacle Changed the location of plug to different receptacle December 2020 Vegetation (All Locations)

(D) Insufficient sample collected Vegetation plots unable to withstand extended freezing temperatures Fresh planting of grass variety able to withstand colder temperatures

An anomaly is considered a non-standard sample that still meets sampling criteria outlined in SNC and Georgia Power Labs procedures.

- A deviation is a sample result that is not recorded due to not meeting scheduling and/or procedural requirements as outlined by SNC and Georgia Power Labs

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 18 l P a g e 3.1 Airborne Particulates As specified in Table 2-1, airborne particulate filters and charcoal canisters were collected weekly at five indicator stations (Stations 3, 7, 10, 12 and 16) which encircle the plant at the site periphery, at a nearby community station (Station 35) approximately seven miles from the plant, and at a control station (Station 36) approximately 14 miles from the plant. At each sampling location containing a filter and cartridge series, air was continuously drawn through a glass fiber filter to retain airborne particulate and an activated charcoal canister was placed in series with the particulate filter to adsorb radioiodine.

3.1.1 Gross Beta As provided in Table 3-1, the 2020 annual average weekly gross beta activity at the indicator stations was 22.5 fCi/m3. It was 1.5 fCi/m3 more than the control station average of 21.0 fCi/m3.

The calculated MDD was 0.9 fCi/m3, which indicated that there was a discernible statistical difference between the two data sets, however as the difference above the MDD was only 0.6 fCi/m3, this excess is not considered a concern.

The 2020 annual average weekly gross beta activity at the Girard community station was 20.6 fCi/m3 which was 0.4 fCi/m3 less than the control station average (21.0 fCi/m3). The MDD was not calculated as the control average was higher.

Average Air Gross Beta historical data (Table 3-4) is graphed to show trends associated with a prevalent exposure pathway (Figure 3-1). In general, there was close agreement between the results for the indicator, control and community stations. This close agreement supports the position that the plant was not contributing significantly to the gross beta concentrations in air.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 19 l P a g e Table 3-4. Average Weekly Gross Beta Air Concentration Period Indicator (fCi/m3)

Control (fCi/m3)

Community (fCi/m3)

Period Indicator (fCi/m3)

Control (fCi/m3)

Community (fCi/m3)

Pre-op 22.9 22.1 21.9 2004 21.6 22.8 21.4 1987 26.3 23.6 22.3 2005 20.5 20.4 19.4 1988 24.7 23.7 22.8 2006 25.5 24.6 24.3 1989 19.1 18.2 18.8 2007 27.3 25.1 26.5 1990 19.6 19.4 18.8 2008 24.0 23.2 23.7 1991 19.3 19.2 18.6 2009 23.0 22.4 22.5 1992 18.7 19.3 18.0 2010 25.8 24.4 25.5 1993 21.2 21.4 20.3 2011 25.8 25.1 24.6 1994 20.1 20.3 19.8 2012 25.9 25.2 26.1 1995 21.1 20.7 20.7 2013 22.9 23.9 22.2 1996 23.3 21.0 20.0 2014 24.1 23.4 23.5 1997 20.6 20.6 19.0 2015 21.5 20.8 20.8 1998 22.7 22.4 20.9 2016 23.5 22.8 21.7 1999 22.5 21.9 22.2 2017 23.2 21.6 22.5 2000 24.5 21.5 21.1 2018 21.4 21.7 19.2 2001 22.4 22.0 22.7 2019 24.3 23.8 24 2002 19.9 18.9 18.6 2020 22.5 21.0 20.6 2003 19.4 20.5 18.3 Figure 3-1. Historic Average Weekly Gross Beta Air Concentration 0

5 10 15 20 25 30 Concentration (fCi/m3)

YEAR Indicator Control Community

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 20 l P a g e 3.1.2 Gamma Particulates and Airborne Radioiodine During 2020, no man-made radionuclides were detected from the gamma isotopic analysis of the quarterly composites of the air particulate filters. Historically, gamma isotopes were detected as a result of offsite events. During pre-operation, Cs-134, Cs-137 and I-131 were occasionally detected. In 1987, Cs-137 was found in one indicator composite at a concentration of 1.7 fCi/m3.

Additionally, I-131 was also detected after the Fukushima incident in 2011, the highest I-131 result in 2011 was 93.8 fCi/m3, which was approximately 10% of the RL. During 2020, no I-131 was detected in the air cartridges at either the indicator or control stations.

3.2 Direct Radiation In 2020, direct (external) radiation was measured with Optically Stimulated Luminescent dosimeters (OSLD) by placing two OSLD badges at each station. The gamma dose at each station was reported as the average reading of the two badges. The badges were analyzed on a quarterly basis. An inspection was performed near mid-quarter for offsite badges to ensure that the badges were on-station and to replace any missing or damaged badges.

Two direct radiation stations were established in each of the 16 compass sectors, to form two concentric rings. The inner ring (Stations 1 through 16) was located near the plant perimeter as shown in Map A-1 in Appendix A and the outer ring (Stations 17 through 32) was located at a distance of approximately five miles from the plant as shown in Map A-2 in Appendix A. The 16 stations forming the inner ring were designated as the indicator stations. The two ring configuration of stations was established in accordance with NRC Branch Technical Position An Acceptable Radiological Environmental Monitoring Program, Revision 1, November 1979. The six control stations (Stations 36, 37, 47, 48, 51 and 52) were located at distances greater than 10 miles from the plant as shown in Map A-3 in Appendix A. Monitored special interest areas include Station 35 at the town of Girard and Station 43 at the employee recreational area (Rec Center).

The mean and range values presented in the Other column in Table 3-1 includes the outer ring stations (stations 17 through 32) as well as stations 35 and 43.

As provided in Table 3-1, the 2020 average quarterly exposure at the indicator stations (inner ring) was 10.2 mR with a range of 2.2 to 19.3 mR. The indicator station average was 1.1 mR less than the control station average. No MDD was applied because the indicator was less than the control. Over the operational history, the annual average quarterly exposures have shown little variation between the indicator and control stations.

The quarterly exposures acquired at the community/other (outer ring) stations during 2020 ranged from 4.4 to 20.8 mR with an average of 11.4 mR which was 0.1 mR higher than the control

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 21 l P a g e station average. The calculated MDD was 1.0 mR, which indicated that there was no discernible statistical difference between the two data sets.

Average Direct Radiation historical data (Table 3-5) is graphed to show trends associated with this exposure pathway (Figure 3-2). The decrease between 1991 and 1992 values is attributed to a change in Thermoluminescent Dosimeters (TLDs) from Teledyne to Panasonic. It should be noted however that the differences between indicator and control and outer ring values did not change. The increase shown in 2010 reflected issues with the aging Panasonic TLD reader. The close agreement between the station groups has supported the position that the plant was not contributing significantly to direct radiation in the environment.

Figure 3-3 below provides a more detailed view of the 2020 values. The values for the special interest areas (Girard and the Rec Center) detailed below indicate that Plant Vogtle did not significantly contribute to direct radiation at those areas.

Table 3-5. Average Quarterly Exposure from Direct Radiation Period Indicator (mR)

Control (mR)

Outer Ring (mR)

Period Indicator (mR)

Control (mR)

Outer Ring (mR)

Pre-op 15.3 16.5 14.7 2004 12.4 12.2 12.3 1987 17.6 17.9 16.7 2005 12.5 13.2 12.9 1988 16.8 16.1 16.0 2006 13.1 12.9 13.0 1989 17.9 18.4 17.2 2007 13.0 12.5 12.7 1990 16.9 16.6 16.3 2008 13.3 13.0 13.1 1991 16.9 17.1 16.7 2009 13.1 13.6 13.3 1992 12.3 12.5 12.1 2010 16.2 16.7 16.6 1993 12.4 12.4 12.1 2011 13.9 13.9 14.0 1994 12.3 12.1 11.9 2012 14.4 14.3 14.2 1995 12.0 12.5 12.3 2013 13.1 13.2 13.6 1996 12.3 12.2 12.3 2014 11.6 12.3 12.0 1997 13.0 13.0 13.1 2015 12.5 12.3 12.6 1998 12.3 12.7 12.4 2016 11.5 11.5 11.5 1999 13.6 13.5 13.4 2017 11.4 11.4 11.9 2000 13.5 13.6 13.5 2018 10.1 10.6 10.7 2001 12.9 13.0 12.9 2019 10.0 10.3 10.4 2002 12.8 12.9 12.6 2020 10.2 11.3 11.4 2003 12.2 12.5 12.4

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 22 l P a g e Figure 3-2. Average Quarterly Exposure from Direct Radiation Figure 3-3. 2020 Average Exposure from Direct Radiation 0

2 4

6 8

10 12 14 16 18 20 Dose (mR)

YEAR Indicator Control Community 5

6 7

8 9

10 11 12 13 14 15 Indicator Control Community/Other Girard (Station 35)

Rec Center (Station 43)

Dose (mR)

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 23 l P a g e 3.3 Biological Media Cs-137 was the only radionuclide detected in two of the three biological media. As indicated in Figure 3-4, the Cs-137 activity levels were below the respective MDCs and well below that of the respective RLs for each sample media for both the indicator and control stations.

3.3.1 Milk In accordance with Tables 2-1 and 2-2, milk samples were collected semi-monthly from two locations (until Girard stopped milk production in the fourth quarter): the Girard Dairy (Station 101) which was considered an indicator station because it is approximately 5.5 miles from Vogtle (ideally, a milk indicator station would be less than 5 miles from the plant); and the Milky Way Dairy (Station 102, at 16.0 miles from the plant) is the control location. No milk animal was found within five miles of Plant Vogtle during the 2020 land use census.

Gamma isotopic (including I-131 and Cs-137) analyses were performed on each collected milk sample and there were no detectable results for gamma isotopes other than Cs-137, which was detected in 4 of 21 indicator samples (1.6 pCi/l average) and 1 of 9 control samples (1.3 pCi/l average). The difference was less than the MDD of 0.31 pCi/l, therefore, there was no statistically significant difference between the indicator and control. Figure 3-4 provides the 2020 Cs-137 concentration in milk.

3.3.2 Vegetation In accordance with Tables 2-1 and 2-2, vegetation samples were collected monthly for gamma isotopic analyses at two indicator locations near the site boundary (Stations 7 and 15) and at one control station located about 17 miles WSW from the plant (Station 37). Historically, the man-made radionuclide Cs-137 was periodically identified in vegetation samples and was generally attributed to offsite sources (such as weapons testing, Chernobyl, and Fukushima). Cs-137 was not detected in any samples collected in 2020 (indicator or control).

While Cs-137 and I-131 were periodically found and Co-60 was discovered once in vegetation samples during pre-operation, the historical trends and the relationship between the indicator and control stations have demonstrated that plant operations were having no adverse impact to the environment. The sample results were consistently well below the MDC and the RL for Cs-137 (80 and 2000 pCi/kg-wet, respectively).

During 2020, there were also no other gamma isotopes detected in any Vogtle REMP vegetation samples.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 24 l P a g e 3.3.3 Fish Fish samples were collected in accordance with the ODCM (as indicated in Table 2-1). For the semiannual collections, the control location (Station 81) extends from approximately two to seven miles upriver of the plant intake structure, and the indicator location (Station 85) extends from about 1.4 to seven miles downriver of the plant discharge structure.

3.3.3.1 Anadromous Species In accordance with Table 2-1, for anadromous species, all fish sampled were considered indicator stations. Anadromous fish were sampled once during 2020, on May 20. No radionuclides were detected in the 2020 anadromous fish sample.

3.3.3.2 Commercially or Recreationally Important Species As provided in Table 3-1, Cs-137 was found in the semiannual collections of commercially or recreationally important species of fish (for both indicator and control). The indicator station averaged a Cs-137 concentration of 39.2 ranging from 0 to 40.7 pCi/kg-wet (detected in two samples), and 35.6 pCi/kg-wet at the control station (detected in two samples, with a range of 0 to 48.9 pCi/kg-wet). There was no statistically discernible difference between the two since the difference of 3.6 is less than the MDD of 29. All detected values were well below the MDC for Cs-137 in fish (150 pCi/kg-wet). No other gamma nuclides were discovered in 2020.

3.3.4 Biological Media Summary There were no statistical differences, trends, or anomalies associated with the 2020 biological media samples when compared to historical data. Figure 3-4 below, details the 2020 Cs-137 concentrations in the three media types.

Figure 3-4. 2020 Biological Media Average Cs-137 Concentrations 0

10 20 30 40 Milk Vegetation Fish Concentration (pcI/L or kg)

Indicator Control

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 25 l P a g e 3.4 Drinking Water Samples were collected at an upstream control location and at three downstream indicator locations (shown on Map A-3) and further described in Table 2-2.

Monthly water samples were taken near the intake of each water treatment plant (raw drinking water) using automatic composite samplers. Additionally, monthly grab samples of the processed water effluent from the treatment plants (finished drinking water) were collected. Monthly aliquots from the raw and processed drinking water were analyzed for gross beta and gamma isotopic activity. The monthly aliquots were also combined to form quarterly composites in order to be analyzed for tritium.

For 2020, the indicator station average gross beta concentration in the raw drinking water was 2.8 pCi/L which was greater than the average gross beta concentration at the control station (2.0 pCi/L), but less than the MDD of 1.0 pCi/L, so there is no statistical difference between the locations. Historically, the close agreement between the gross beta values of the indicator stations and the control station has supported that there was no significant gross beta contribution from the plant effluents. The required MDC for gross beta in water was 4.0 pCi/L; there was no RL for gross beta in water.

For 2020, the indicator station average gross beta concentration in the finished drinking water was 2.5 pCi/L which is more than the average at the control station (2.3 pCi/L), but less than the MDD of 0.7pCi/L, so there is no statistical difference between the locations. Figure 3-5 show the relationship between the average indicator station and average control station for 2020 in comparison to the MDC.

As provided in Table 3-1, there were no positive results during 2020 from the gamma isotopic analysis of the raw and finished drinking water samples.

Regarding tritium, the average raw drinking water indicator concentration was 302 pCi/L which was 165 pCi/L greater than the average concentration found at the control station (137 pCi/L).

This difference does exceed the MDD of 129 pCi/L, which would indicate a difference that is statistically discernible, however all detected values were less than the MDC for drinking water of 2,000 pCi/L, and these values were consistent with past results.

The finished drinking water average tritium concentration at the indicator stations during 2020 was 315 pCi/L which was 210 pCi/L greater than the average concentration found at the control station (105 pCi/L). The MDD was calculated at 130 pCi/L between the indicator and control stations, indicating a statistical difference. However, the averages were below the MDC for drinking water and the values were consistent with past results, coupled with the raw sample results, there does not appear to be an impact form plant operations. Figure 3-6 shows the tritium values in the drinking water compared to river water.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 26 l P a g e Figure 3-5. 2020 Average Gross Beta Concentration in Raw and Finished Drinking Water 3.5 River Water Composite river water samples were collected monthly at an upstream control location and at two downstream indicator locations (shown on Map A-3). The details of the sampling protocols are outlined in Tables 2-1 and Table 2-2. A gamma isotopic analysis was conducted on each monthly sample. The monthly aliquots were combined to form quarterly composite samples in order to be analyzed for tritium.

As provided in Table 3-1, there were no positive results during 2020 from the gamma isotopic analysis of the river water samples. Also indicated in Table 3-1, the average tritium concentration found at the indicator station was 1095 pCi/L which was 976 pCi/L greater than the average at the control station (119 pCi/L). The river water tritium MDD was calculated to be 688 pCi/L, so the difference was statistically discernible. This increased tritium could likely be attributed to plant activity from Vogtle and other upstream dischargers. Tritium was released regularly from the plant during normal operations, but always at levels that would not impact the MDC or RL.

At the Other river water sampling station (Station 84), the results ranged from 0 pCi/L to 634 pCi/L with an average of 323 pCi/L. The difference between the Station 84 and the control station was 204 pCi/L. The MDD was calculated to be 240 pCi/L, so the difference was not statistically discernible. Additionally, tritium was released regularly from the plant during normal operations, but always at levels that would not impact the MDC or RL. Historically, the relationship between the indicator/control stations and Station 84 has remained consistent. Figure 3-6 below details the 2020 average tritium concentrations across the three water sample types.

0 1

2 3

4 5

Raw Drinking Water Finished Drinking Water Concentration (pCi/L)

Indicator Control MDC

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 27 l P a g e Figure 3-6. 2020 Average Tritium Concentrations in River, Raw Drinking, and Finished Drinking Water 3.6 Sediment Sediment was collected along the shoreline of the Savannah River in the spring and fall at Stations 81 and 83. Station 81 was a control station located about 2.5 miles upriver of the plant intake structure while Station 83 was an indicator station located about 0.6 miles downriver of the plant discharge structure. A gamma isotopic analysis was performed on each sample. The radionuclides detected in 2020 samples were Be-7 and Cs-137. Though Be-7 was detected in sediment, it will not be discussed within this report, because it was not detected in plant effluents and likely represents naturally occurring and/or background conditions.

Cs-137 was identified in both the indicator station (114 pCi/kg-dry) and the control station (120 pCi/kg-dry). Since the control station value was higher, no MDD was calculated and no impact to the environment was indicated.

There were no other radionuclides detected in the 2020 sediment samples.

3.7 Interlaboratory Comparison Program In accordance with ODCM 4.1.3, GPCEL participated in an Interlaboratory Comparison Program (ICP) which satisfied the requirements of Regulatory Guide 4.15, Revision 1, "Quality Assurance for Radiological Monitoring Programs (Normal Operations) - Effluent Streams and the Environment", February 1979. The ICP included the required determinations (sample medium/radionuclide combinations) included in the REMP.

0 500 1000 1500 2000 2500 3000 3500 4000 River Water Raw Drinking Water Finished Drinking Water Concentration (pCi/L)

Special Indicator Control MDC

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 28 l P a g e The ICP was conducted by Eckert & Ziegler Analytics, Inc. (EZA) of Atlanta, Georgia. EZA has a documented Quality Assurance (QA) program and the capability to prepare Quality Control (QC) materials traceable to the National Institute of Standards and Technology. The ICP is a third-party blind testing program which provided a means to ensure independent checks were performed on the accuracy and precision of the measurements of radioactive materials in environmental sample matrices. EZA supplied the crosscheck samples to GPCEL which performed routine laboratory analyses. Each of the specified analyses was performed three times.

The accuracy of each result was measured by the normalized deviation, which is the ratio of the reported average less the known value to the total error. An investigation was undertaken whenever the absolute value of the normalized deviation is greater than three or whenever the coefficient of variation was greater than 15% for all radionuclides other than Cr-51 and Fe-59.

For Cr-51 and Fe-59, an investigation is undertaken when the coefficient of variation exceeded the values shown on Table 3-6 below:

Table 3-6. Interlaboratory Comparison Limits Nuclide Concentration

Total Sample Activity (pCi)

Percent Coefficient of Variation Cr-51

<300 NA 25 NA

>1000 25

>300

<1000 15 Fe-59

<80 NA 25

>80 NA 15

For air filters, concentration units are pCi/filter. For all other media, concentration units are pCi/liter (pCi/l).

As required by ODCM 4.1.3.3 and 7.1.2.3, a summary of the results of the GPCEL's participation in the ICP is provided in Table 3-7 for:

x gross beta and gamma isotopic analyses of an air filter x gamma isotopic analyses of milk samples x gross beta, tritium and gamma isotopic analyses of water samples The 2020 analyses included tritium, gross beta and gamma emitting radio-nuclides in different matrices. The results for the analyses were within acceptable limits for accuracy and no investigations were required.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 29 l P a g e Table 3-7. Interlaboratory Comparison Summary Analysis or Radionuclide Date Prepared Reported Average Known Value Standard Deviation EL Uncertainty Analytics (3S)

Percent Coefficient of Variation Normalized Deviation I-131 ANALYSIS OF AN AIR CARTRIDGE (pCi/cartridge)

I-131 3/12/2020 95.9 91.2 1.33 1.52 5.21 0.95 GAMMA ISOTOPIC ANALYSIS OF AN AIR FILTER (pCi/filter)

Ce-141 9/10/2020 108 101 3.14 1.69 6.21 1.07 Co-58 126 121 4.97 2.02 5.89 0.71 Co-60 260 255 6.47 4.26 4.49 0.44 Cr-51 273 251 14.8 4.18 8.22 0.99 Cs-134 144 135 6.33 2.25 5.64 1.06 Cs-137 185 168 4.44 2.81 4.71 1.95 Fe-59 140 135 5.80 2.25 6.40 0.59 Mn-54 137 121 3.53 2.03 4.99 2.40 Zn-65 204 182 15.8 3.03 9.13 1.19 GROSS BETA ANALYSIS OF AN AIR FILTER (PCI/FILTER)

Gross Beta 6/4/2020 219 235 6.28 3.93 3.74

-1.95 GAMMA ISOTOPIC ANALYSIS OF A MILK SAMPLE (PCI/LITER)

Co-58 9/10/2020 182 180 4.20 3.00 5.83 0.22 Co-60 381 379 9.46 6.33 4.88 0.09 Cr-51 384 372 16.4 6.21 11.2 0.29 Cs-134 199 200 8.89 3.34 6.27

-0.10 Cs-137 262 250 4.79 4.18 5.16 0.88 Fe-59 202 200 9.38 3.35 7.60 0.11 I-131 99.8 95.0 7.88 1.59 11.4 0.42 Mn-54 189 180 10.3 3.01 7.51 0.66 Zn-65 285 270 14.3 4.51 7.75 0.70 GROSS BETA ANALYSIS OF WATER SAMPLE (PCI/LITER)

Gross Beta 6/4/2020 275 240 15.0 4.01 6.54 1.96 GAMMA ISOTOPIC ANALYSIS OF WATER SAMPLES (PCI/LITER)

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 30 l P a g e Table 3-7. Interlaboratory Comparison Summary Analysis or Radionuclide Date Prepared Reported Average Known Value Standard Deviation EL Uncertainty Analytics (3S)

Percent Coefficient of Variation Normalized Deviation Ce-141 6/4/2020 104 102 3.62 1.70 7.03 0.30 Co-58 199 198 8.46 3.30 6.18

.12 Co-60 287 259 18.3 4.33 12.68

.77 Cr-51 153 148 3.91 2.47 5.07 0.68 Cs-134 115 105 4.66 1.75 7.15 1.24 Cs-137 98.2 102 4.20 1.71 8.60

-0.45 Fe-59 84.2 80.5 4.46 1.34 8.59 0.51 I-131 146 135 3.63 2.26 6.03 1.23 Mn-54 252 227 8.69 3.80 6.84 1.43 Zn-65 122 117 3.58 1.96 7.03 0.60 TRITIUM ANALYSIS OF WATER SAMPLES (PCI/LITER)

H-3 9/10/2020 11700 12000 57.74 201 2.08

-1.38 GAMMA ISOTOPIC ANALYSIS OF VEGETATION SAMPLES (PCI/LITER)

Co-58 6/4/2020 152 159 11.8 2.65 11.2

-0.41 Co-60 291 309 10.4 5.16 6.24

-1.02 Cr-51 431 405 37.8 6.77 19.5 0.31 Cs-134 224 231 9.55 3.86 6.84

-0.45 Cs-137 163 164 7.47 2.74 8.89

-0.07 Fe-59 157 160 10.8 2.67 13.0

-0.15 Mn-54 213 212 13.4 3.53 9.13 0.07 Zn-65 377 355 12.6 5.94 8.71 0.68 Ce-141 192 184 7.53 3.07 8.93 0.44

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 31 l P a g e 3.8 Groundwater To ensure compliance with NEI 07-07 (Industry Ground Water Protection Initiative - Final Guidance Document), Southern Nuclear implemented a groundwater protection program which is procedualized in Nuclear Management Procedure, Radiological Groundwater Protection Program. The procedure contains detailed site-specific monitoring plans, program technical bases, and communications protocol (to ensure that radioactive leaks and spills are addressed and communicated appropriately). In an effort to prevent future leaks of radioactive material to groundwater, SNC plants have established buried piping and tanks inspection programs. No changes were made to the Groundwater Protection Program in 2020.

Plant Vogtle maintained the following wells (Table 3-8), which were sampled at a frequency that satisfied the requirements of NEI 07-07. The analytical results for 2020 were all within regulatory limits specified within this report. Table 3-9 contains the results of the Groundwater Protection Program tritium results (in pCi/L).

Table 3-8. Groundwater Protection Program Locations Well Aquifer Monitoring Purpose LT-1B Water Table NSCW related tank LT-7A Water Table NSCW related tank LT-12 Water Table NSCW related tank LT-13 Water Table NSCW related tank 802A Water Table Southeastern potential leakage 806B Water Table Dilution line 808 Water Table Up gradient; along Pen Branch Fault R1 Water Table NSCW related tank; western potential leakage R2 Water Table Southern potential leakage R3 Water Table Eastern potential leakage R4 Water Table Dilution line R5 Water Table Dilution line R6 Water Table Dilution line R7 Water Table Dilution line R8 Water Table within Sav. River sediments Dilution line 1014 Tertiary Up gradient 1015 Water Table Vertically up gradient MU-1 Tertiary/Cretaceous Facility water supply River N/A Surface water NSCW - Nuclear service cooling water

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 32 l P a g e Table 3-9. Groundwater Protection Program Tritium Results (pCi/L)

Well 1st Quarter 2nd Quarter 3rd Quarter 4th Quarter LT-1B NS 383 NS NDM LT-7A NS 651 NS 369 LT-12 2040 2610 1940 2260 LT-13 NS 459 NS 263 802A NS NS NS 295 806B NS 416 NS 250 808 NS 203 NS NDM R1 NS NS NS NS R2 NS 124 NS 268 R3 NS 213 NS 261 R4 NS 162 NS NDM R5 NS 161 NS NDM R6 NS 254 NS NDM R7 NS NDM NS NDM R8 NS 203 NS NDM 1014 NS NDM NS NDM 1015 NS 181 NS 97 MU-1 NS NS NS NDM River NS 203 NS NDM NDM - No Detectable Measurement NS - Not Sampled

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 33 l P a g e 4 SURVEY SUMMARIES 4.1 Land Use Census In accordance with ODCM 4.1.2, a land use census was conducted from October through December 2020 that circumscribed each of the 16 compass sectors within a five mile radius in order to verify the locations of the nearest radiological receptor. The land use census results are tabulated in Table 4.1. The 2020 land uses census results, shown in Table 4-1, indicated that a revision to the ODCM will not be required.

Table 4-1. Land Use Census Results Sector Residence Milk Animal*

Beef Cattle Garden**

Distance in Miles to the Nearest Location in Each Sector N

1.4 None None None NNE None None None None NE None None None None ENE None None None None E

None None None None ESE 4.2 None None None SE 4.3 None 4.9 None SSE 4.7 None 4.7 None S

4.4 None None None SSW 4.7 None 4.7 None SW 3.1 None 4.4 None WSW 2.6 None 2.7 None W

3.4 None 4.7 4.1 WNW 1.9 None None None NW 1.5 None 1.8 None NNW 1.5 None None None

A milk animal is a cow or goat producing milk for human consumption.

- A garden of greater than 500 square feet producing broad leaf vegetation.

Note: Land within SRS was excluded from the census.

4.2 Savannah River Survey A survey of the Savannah River downstream of the plant for approximately 100 miles (approximately river miles 44.7 to 151.2) was conducted on October 2, 2020 to identify any new withdrawal of water from the river for drinking, irrigation, or construction purposes. No new

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 34 l P a g e usage was visually identified. These results were verified with both the Georgia Department of Natural Resources and the South Carolina Department of Health and Environmental Control (SC DEHEC). Each of these agencies public records indicated that no water withdrawal permits for drinking, irrigation, or construction purposes had been issued for this stretch of the Savannah River.

4.3 Meteorological Report Summary A consultant analyzes the meteorological tower data collected throughout the year and compares it to previous results. In 2020, the meteorological tower results were comparable to previous years, as related to precipitation amounts (49.14) and wind direction (from west-southwest at 10m, from the west-southwest at 60m). Additionally, the meteorological data meets the quality requirements, therefore, no changes to REMP monitoring locations are warranted.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report 35 l P a g e 5 CONCLUSIONS This report has confirmed SNCs conformance with the requirements of Chapter 4 of the ODCM and the objectives were to:

1) Determine the levels of radiation and the concentrations of radioactivity in the environs and;

2) Assess the radiological impact (if any) to the environment due to the operation of the VEGP.

Based on the 2020 activities associated with the REMP, SNC offers the following conclusions:

x Samples were collected and there were no deviations or anomalies that negatively affected the quality of the REMP x Land use census and river survey did not require any changes x Analytical results were below reporting levels x These values were consistent with historical results, which indicate no adverse radiological environmental impacts associated with the operation of VEGP

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report Appendix A APPENDIX A Maps

Legend:

Indicator Staons -

Control Staons -

Other Staons -

Drawn by:

Appendix A Map A-1 C. Groce S

SW W

NW N

NE E

SE Vogtle Electric Generating Plant Annual Radiological Environmental Report ZEMP Stations in Plant Vicinity

Legend:

Indicator Staons -

Control Staons -

Other Staons -

Drawn by:

Appendix A Map A-2 C. Groce 10 Miles Vogtle Electric Generating Plant Annual Radiological Environmental Report REMP Staons within 10 miles

Legend:

Indicator Staons -

Control Staons -

Other Staons -

Drawn by:

Appendix A Map A-3 C. Groce Vogtle Electric Generating Plant Annual Radiological Environmental Report Extended REMP Staons 10 Miles

Drawn by:

Appendix A Map A-4 C. Groce

Vogtle Electric Generating Plant Annual Radiological Environmental Report Facility Groundwater Wells

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PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report Appendix B APPENDIX B Errata

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report Appendix C There are no errata for the 2020 reporting year.

PLANT VOGTLE LE 2020 VEGP Annual Radiological Environmental Operating Report Appendix C APPENDIX C Data The following pages contain the individual data points from the 2020 reporting year. The units for the data points varies by media, as follows:

x Airborne Radioiodine and Particulates/Water/Milk - picocuries/liter (pCi/l) x Sediment/Vegetation/Fish - picocuries/kilogram (pCi/kg) x Direct Radiation - millirem (mR)

cust_id profile_name analyte_name cust_sample_id collect_date result result_units lab_sample_id Vogtle Water H-3 Tritium FAUC 1/7/2020 65.7 pCi/L 124164002 Vogtle Water H-3 Tritium RAUC 1/7/2020 116 pCi/L 124164001 Vogtle Water H-3 Tritium FPUR 1/7/2020 243 pCi/L 124164006 Vogtle Water H-3 Tritium RPUR 1/7/2020 111 pCi/L 124164005 Vogtle Water H-3 Tritium FPOR 1/7/2020 158 pCi/L 124164004 Vogtle Water H-3 Tritium RPOR 1/7/2020 292 pCi/L 124164003 Vogtle Air Filters Gross Beta WAY 1/7/2020

.01588 pCi/m3 123996001 Vogtle Air Filters Gross Beta GIR 1/7/2020

.0193 pCi/m3 123996002 Vogtle Air Filters Gross Beta SIM 1/7/2020

.02103 pCi/m3 123996003 Vogtle Air Filters Gross Beta HAN 1/7/2020

.01944 pCi/m3 123996007 Vogtle Air Filters Gross Beta RRD 1/7/2020

.02021 pCi/m3 123996006 Vogtle Air Filters Gross Beta MET 1/7/2020

.02129 pCi/m3 123996005 Vogtle Air Filters Gross Beta DIS 1/7/2020

.01649 pCi/m3 123996004 Vogtle Air Filters Gross Beta GIR 1/14/2020

.01523 pCi/m3 124123002 Vogtle Air Filters Gross Beta WAY 1/14/2020

.01816 pCi/m3 124123001 Vogtle Air Filters Gross Beta HAN 1/14/2020

.01356 pCi/m3 124123007 Vogtle Air Filters Gross Beta RRD 1/14/2020

.01575 pCi/m3 124123006 Vogtle Air Filters Gross Beta SIM 1/14/2020

.01679 pCi/m3 124123003 Vogtle Air Filters Gross Beta MET 1/14/2020

.01398 pCi/m3 124123005 Vogtle Air Filters Gross Beta DIS 1/14/2020

.01357 pCi/m3 124123004 Vogtle River Water Mn-54 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Fe-59 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Co-58 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Co-60 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Zn-65 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Zr-95 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Nb-95 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water I-131 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Cs-134 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Cs-137 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Ba-140 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water La-140 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water Be-7 1512 1/14/2020 0

pCi/L 124116001 Vogtle River Water K-40 1512 1/14/2020 0

pCi/L 124116001 Vogtle Water H-3 Tritium 1512 1/14/2020 80.9 pCi/L 124163001 Vogtle River Water Cs-137 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Ba-140 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water La-140 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Be-7 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water K-40 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Mn-54 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Fe-59 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Co-58 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Co-60 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Zn-65 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Zr-95 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Nb-95 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water I-131 1504 1/14/2020 0

pCi/L 124116002 Vogtle Water H-3 Tritium 1504 1/14/2020 185 pCi/L 124163002 Vogtle River Water Cs-134 1504 1/14/2020 0

pCi/L 124116002 Vogtle River Water Be-7 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water K-40 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Mn-54 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Fe-59 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Co-58 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Co-60 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Zn-65 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Zr-95 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Nb-95 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water I-131 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Cs-134 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Cs-137 1495 1/14/2020 0

pCi/L 124116003 Vogtle River Water Ba-140 1495 1/14/2020 0

pCi/L 124116003 Vogtle Water H-3 Tritium 1495 1/14/2020 72.9 pCi/L 124163003 Vogtle River Water La-140 1495 1/14/2020 0

pCi/L 124116003 Vogtle Air Filters Gross Beta GIR 1/21/2020

.02074 pCi/m3 124180002 Vogtle Air Filters Gross Beta WAY 1/21/2020

.02036 pCi/m3 124180001 Vogtle Air Filters Gross Beta HAN 1/21/2020

.01944 pCi/m3 124180007 Vogtle Air Filters Gross Beta RRD 1/21/2020

.02564 pCi/m3 124180006 Vogtle Air Filters Gross Beta SIM 1/21/2020

.02339 pCi/m3 124180003 Vogtle Air Filters Gross Beta MET 1/21/2020

.02297 pCi/m3 124180005 Vogtle Air Filters Gross Beta DIS 1/21/2020

.02127 pCi/m3 124180004 Vogtle Air Filters Gross Beta GIR 1/28/2020

.02321 pCi/m3 124228002 Vogtle Air Filters Gross Beta WAY 1/28/2020

.02103 pCi/m3 124228001 Vogtle Vegetation Cs-134 Waynesboro 1/28/2020 0

pCi/Kg 124231001 Vogtle Vegetation Cs-137 Waynesboro 1/28/2020 0

pCi/Kg 124231001 Vogtle Vegetation Be-7 Waynesboro 1/28/2020 1888.2 pCi/Kg 124231001 Vogtle Vegetation K-40 Waynesboro 1/28/2020 4737.4 pCi/Kg 124231001 Vogtle Vegetation I-131 Waynesboro 1/28/2020 0

pCi/Kg 124231001 Vogtle Air Filters Gross Beta HAN 1/28/2020

.02066 pCi/m3 124228007 Vogtle Vegetation I-131 Hancock Landing Road 1/28/2020 0

pCi/Kg 124231003 Vogtle Vegetation Cs-134 Hancock Landing Road 1/28/2020 0

pCi/Kg 124231003 Vogtle Vegetation Cs-137 Hancock Landing Road 1/28/2020 0

pCi/Kg 124231003 Vogtle Vegetation Be-7 Hancock Landing Road 1/28/2020 417.9 pCi/Kg 124231003 Vogtle Vegetation K-40 Hancock Landing Road 1/28/2020 4741.8 pCi/Kg 124231003 Vogtle Air Filters Gross Beta RRD 1/28/2020

.0208 pCi/m3 124228006

Vogtle Air Filters Gross Beta SIM 1/28/2020

.01954 pCi/m3 124228003 Vogtle Vegetation Cs-134 Simulator 1/28/2020 0

pCi/Kg 124231002 Vogtle Vegetation Cs-137 Simulator 1/28/2020 0

pCi/Kg 124231002 Vogtle Vegetation Be-7 Simulator 1/28/2020 935.35 pCi/Kg 124231002 Vogtle Vegetation K-40 Simulator 1/28/2020 5340.4 pCi/Kg 124231002 Vogtle Vegetation I-131 Simulator 1/28/2020 0

pCi/Kg 124231002 Vogtle Air Filters Gross Beta MET 1/28/2020

.02087 pCi/m3 124228005 Vogtle Air Filters Gross Beta DIS 1/28/2020

.0195 pCi/m3 124228004 Vogtle Air Filters Gross Beta GIR 2/4/2020

.01998 pCi/m3 124316002 Vogtle Air Filters Gross Beta WAY 2/4/2020

.01951 pCi/m3 124316001 Vogtle Air Filters Gross Beta HAN 2/4/2020

.01956 pCi/m3 124316007 Vogtle Air Filters Gross Beta RRD 2/4/2020

.01977 pCi/m3 124316006 Vogtle Air Filters Gross Beta SIM 2/4/2020

.01998 pCi/m3 124316003 Vogtle Air Filters Gross Beta MET 2/4/2020

.01983 pCi/m3 124316005 Vogtle Air Filters Gross Beta DIS 2/4/2020

.02201 pCi/m3 124316004 Vogtle River Water Zn-65 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Zr-95 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Nb-95 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water I-131 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Cs-134 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Cs-137 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Ba-140 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water La-140 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Be-7 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water K-40 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Mn-54 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Fe-59 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Co-58 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Co-60 1512 2/10/2020 0

pCi/L 124346001 Vogtle River Water Nb-95 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water I-131 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Cs-134 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Cs-137 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Ba-140 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water La-140 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Be-7 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water K-40 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Mn-54 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Fe-59 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Co-58 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Co-60 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Zn-65 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water Zr-95 1504 2/10/2020 0

pCi/L 124346002 Vogtle River Water I-131 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Cs-134 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Cs-137 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Ba-140 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water La-140 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Be-7 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water K-40 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Mn-54 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Fe-59 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Co-58 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Co-60 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Zn-65 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Zr-95 1495 2/10/2020 0

pCi/L 124346003 Vogtle River Water Nb-95 1495 2/10/2020 0

pCi/L 124346003 Vogtle Air Filters Gross Beta GIR 2/11/2020

.01852 pCi/m3 124369002 Vogtle Air Filters Gross Beta WAY 2/11/2020

.01803 pCi/m3 124369001 Vogtle Air Filters Gross Beta HAN 2/11/2020

.01734 pCi/m3 124369007 Vogtle Air Filters Gross Beta RRD 2/11/2020

.01756 pCi/m3 124369006 Vogtle Air Filters Gross Beta SIM 2/11/2020

.02025 pCi/m3 124369003 Vogtle Air Filters Gross Beta MET 2/11/2020

.01841 pCi/m3 124369005 Vogtle Air Filters Gross Beta DIS 2/11/2020

.01925 pCi/m3 124369004 Vogtle Air Filters Gross Beta GIR 2/17/2020

.01608 pCi/m3 124421002 Vogtle Air Filters Gross Beta WAY 2/17/2020

.01709 pCi/m3 124421001 Vogtle Air Filters Gross Beta HAN 2/17/2020

.01941 pCi/m3 124421007 Vogtle Air Filters Gross Beta RRD 2/17/2020

.01695 pCi/m3 124421006 Vogtle Air Filters Gross Beta SIM 2/17/2020

.01783 pCi/m3 124421003 Vogtle Air Filters Gross Beta MET 2/17/2020

.0184 pCi/m3 124421005 Vogtle Air Filters Gross Beta DIS 2/17/2020

.01441 pCi/m3 124421004 Vogtle Air Filters Gross Beta WAY 2/25/2020

.01684 pCi/m3 124464001 Vogtle Vegetation Cs-134 Waynesboro 2/25/2020 0

pCi/Kg 124466001 Vogtle Vegetation Cs-137 Waynesboro 2/25/2020 0

pCi/Kg 124466001 Vogtle Vegetation Be-7 Waynesboro 2/25/2020 4447.5 pCi/Kg 124466001 Vogtle Vegetation K-40 Waynesboro 2/25/2020 3306.9 pCi/Kg 124466001 Vogtle Vegetation I-131 Waynesboro 2/25/2020 0

pCi/Kg 124466001 Vogtle Air Filters Gross Beta GIR 2/25/2020

.01544 pCi/m3 124464002 Vogtle Vegetation Cs-134 Simulator 2/25/2020 0

pCi/Kg 124466002 Vogtle Vegetation Cs-137 Simulator 2/25/2020 0

pCi/Kg 124466002 Vogtle Vegetation Be-7 Simulator 2/25/2020 1476.3 pCi/Kg 124466002 Vogtle Vegetation K-40 Simulator 2/25/2020 5153.1 pCi/Kg 124466002 Vogtle Vegetation I-131 Simulator 2/25/2020 0

pCi/Kg 124466002 Vogtle Air Filters Gross Beta SIM 2/25/2020

.01747 pCi/m3 124464003 Vogtle Vegetation I-131 Hancock Landing Road 2/25/2020 0

pCi/Kg 124466003 Vogtle Vegetation Cs-134 Hancock Landing Road 2/25/2020 0

pCi/Kg 124466003 Vogtle Vegetation Cs-137 Hancock Landing Road 2/25/2020 0

pCi/Kg 124466003

Vogtle Vegetation Be-7 Hancock Landing Road 2/25/2020 1647.6 pCi/Kg 124466003 Vogtle Vegetation K-40 Hancock Landing Road 2/25/2020 5145.1 pCi/Kg 124466003 Vogtle Air Filters Gross Beta HAN 2/25/2020

.01975 pCi/m3 124464007 Vogtle Air Filters Gross Beta RRD 2/25/2020

.02047 pCi/m3 124464006 Vogtle Air Filters Gross Beta MET 2/25/2020

.01735 pCi/m3 124464005 Vogtle Air Filters Gross Beta DIS 2/25/2020

.01763 pCi/m3 124464004 Vogtle Air Filters Gross Beta GIR 3/3/2020

.01659 pCi/m3 124523002 Vogtle Air Filters Gross Beta WAY 3/3/2020

.01706 pCi/m3 124523001 Vogtle Air Filters Gross Beta HAN 3/3/2020

.01822 pCi/m3 124523007 Vogtle Air Filters Gross Beta RRD 3/3/2020

.01677 pCi/m3 124523006 Vogtle Air Filters Gross Beta SIM 3/3/2020

.0185 pCi/m3 124523003 Vogtle Air Filters Gross Beta MET 3/3/2020

.01674 pCi/m3 124523005 Vogtle Air Filters Gross Beta DIS 3/3/2020

.01849 pCi/m3 124523004 Vogtle Milk Gamma Be-7 Milky Way 3/10/2020 0

pCi/L 124601001 Vogtle Milk Gamma La-140 Milky Way 3/10/2020 0

pCi/L 124601001 Vogtle Milk Gamma Ba-140 Milky Way 3/10/2020 0

pCi/L 124601001 Vogtle Milk Gamma Cs-137 Milky Way 3/10/2020 0

pCi/L 124601001 Vogtle Milk Gamma Cs-134 Milky Way 3/10/2020 0

pCi/L 124601001 Vogtle Milk Gamma I-131 Milky Way 3/10/2020 0

pCi/L 124601001 Vogtle Milk Gamma K-40 Milky Way 3/10/2020 1389.3 pCi/L 124601001 Vogtle Air Filters Gross Beta WAY 3/10/2020

.01847 pCi/m3 124602001 Vogtle Milk Gamma I-131 GIR 3/10/2020 0

pCi/L 124601002 Vogtle Milk Gamma K-40 GIR 3/10/2020 1434.3 pCi/L 124601002 Vogtle Milk Gamma Be-7 GIR 3/10/2020 0

pCi/L 124601002 Vogtle Milk Gamma Cs-134 GIR 3/10/2020 0

pCi/L 124601002 Vogtle Milk Gamma Cs-137 GIR 3/10/2020 0

pCi/L 124601002 Vogtle Milk Gamma Ba-140 GIR 3/10/2020 0

pCi/L 124601002 Vogtle Milk Gamma La-140 GIR 3/10/2020 0

pCi/L 124601002 Vogtle Air Filters Gross Beta GIR 3/10/2020

.01566 pCi/m3 124602002 Vogtle Air Filters Gross Beta SIM 3/10/2020

.0159 pCi/m3 124602003 Vogtle Air Filters Gross Beta HAN 3/10/2020

.01762 pCi/m3 124602007 Vogtle Air Filters Gross Beta RRD 3/10/2020

.0188 pCi/m3 124602006 Vogtle Air Filters Gross Beta MET 3/10/2020

.01485 pCi/m3 124602005 Vogtle Air Filters Gross Beta DIS 3/10/2020

.01522 pCi/m3 124602004 Vogtle Air Filters Gross Beta GIR 3/17/2020

.01941 pCi/m3 124683002 Vogtle Air Filters Gross Beta WAY 3/17/2020

.01705 pCi/m3 124683001 Vogtle Air Filters Gross Beta HAN 3/17/2020

.02325 pCi/m3 124683007 Vogtle Air Filters Gross Beta RRD 3/17/2020

.02373 pCi/m3 124683006 Vogtle Air Filters Gross Beta SIM 3/17/2020

.02173 pCi/m3 124683003 Vogtle Air Filters Gross Beta MET 3/17/2020

.02156 pCi/m3 124683005 Vogtle Air Filters Gross Beta DIS 3/17/2020

.0242 pCi/m3 124683004 Vogtle Air Filters Gross Beta GIR 3/24/2020

.01667 pCi/m3 124721002 Vogtle Milk Gamma Cs-134 GIR 3/24/2020 0

pCi/L 124720002 Vogtle Milk Gamma Cs-137 GIR 3/24/2020 1.5132 pCi/L 124720002 Vogtle Milk Gamma Ba-140 GIR 3/24/2020 0

pCi/L 124720002 Vogtle Milk Gamma La-140 GIR 3/24/2020 0

pCi/L 124720002 Vogtle Milk Gamma Be-7 GIR 3/24/2020 0

pCi/L 124720002 Vogtle Milk Gamma K-40 GIR 3/24/2020 1358.2 pCi/L 124720002 Vogtle Milk Gamma I-131 GIR 3/24/2020 0

pCi/L 124720002 Vogtle Milk Gamma K-40 Milky Way 3/24/2020 1372.8 pCi/L 124720001 Vogtle Milk Gamma Be-7 Milky Way 3/24/2020 0

pCi/L 124720001 Vogtle Milk Gamma La-140 Milky Way 3/24/2020 0

pCi/L 124720001 Vogtle Milk Gamma Ba-140 Milky Way 3/24/2020 0

pCi/L 124720001 Vogtle Milk Gamma Cs-137 Milky Way 3/24/2020 0

pCi/L 124720001 Vogtle Milk Gamma Cs-134 Milky Way 3/24/2020 0

pCi/L 124720001 Vogtle Milk Gamma I-131 Milky Way 3/24/2020 0

pCi/L 124720001 Vogtle Air Filters Gross Beta WAY 3/24/2020

.0181 pCi/m3 124721001 Vogtle Air Filters Gross Beta HAN 3/24/2020

.01669 pCi/m3 124721007 Vogtle Air Filters Gross Beta RRD 3/24/2020

.01902 pCi/m3 124721006 Vogtle Air Filters Gross Beta SIM 3/24/2020

.01693 pCi/m3 124721003 Vogtle Air Filters Gross Beta MET 3/24/2020

.01532 pCi/m3 124721005 Vogtle Air Filters Gross Beta DIS 3/24/2020

.01483 pCi/m3 124721004 Vogtle Air Qtr Comp I-131 GIR 3/31/2020 0

pCi/m3 124827002 Vogtle Air Qtr Comp Cs-134 GIR 3/31/2020 0

pCi/m3 124827002 Vogtle Air Qtr Comp Cs-137 GIR 3/31/2020 0

pCi/m3 124827002 Vogtle Air Qtr Comp Be-7 GIR 3/31/2020

.07877 pCi/m3 124827002 Vogtle Air Filters Gross Beta GIR 3/31/2020

.01911 pCi/m3 124783002 Vogtle Vegetation Cs-134 Waynesboro 3/31/2020 0

pCi/Kg 124785001 Vogtle Vegetation Cs-137 Waynesboro 3/31/2020 0

pCi/Kg 124785001 Vogtle Vegetation Be-7 Waynesboro 3/31/2020 305.39 pCi/Kg 124785001 Vogtle Vegetation K-40 Waynesboro 3/31/2020 4828.8 pCi/Kg 124785001 Vogtle Vegetation I-131 Waynesboro 3/31/2020 0

pCi/Kg 124785001 Vogtle Air Qtr Comp Be-7 WAY 3/31/2020

.08741 pCi/m3 124827001 Vogtle Air Filters Gross Beta WAY 3/31/2020

.02316 pCi/m3 124783001 Vogtle Air Qtr Comp Cs-137 WAY 3/31/2020 0

pCi/m3 124827001 Vogtle Air Qtr Comp Cs-134 WAY 3/31/2020 0

pCi/m3 124827001 Vogtle Air Qtr Comp I-131 WAY 3/31/2020 0

pCi/m3 124827001 Vogtle Vegetation Cs-134 Hancock Landing Road 3/31/2020 0

pCi/Kg 124785003 Vogtle Vegetation Cs-137 Hancock Landing Road 3/31/2020 0

pCi/Kg 124785003 Vogtle Vegetation Be-7 Hancock Landing Road 3/31/2020 455.85 pCi/Kg 124785003 Vogtle Vegetation K-40 Hancock Landing Road 3/31/2020 5006.2 pCi/Kg 124785003 Vogtle Vegetation I-131 Hancock Landing Road 3/31/2020 0

pCi/Kg 124785003 Vogtle Air Qtr Comp Be-7 HAN 3/31/2020

.08949 pCi/m3 124827007 Vogtle Air Filters Gross Beta HAN 3/31/2020

.02279 pCi/m3 124783007 Vogtle Air Qtr Comp Cs-137 HAN 3/31/2020 0

pCi/m3 124827007 Vogtle Air Qtr Comp Cs-134 HAN 3/31/2020 0

pCi/m3 124827007 Vogtle Air Qtr Comp I-131 HAN 3/31/2020 0

pCi/m3 124827007

Vogtle Air Qtr Comp Be-7 RRD 3/31/2020

.08574 pCi/m3 124827006 Vogtle Air Qtr Comp Cs-137 RRD 3/31/2020 0

pCi/m3 124827006 Vogtle Air Qtr Comp Cs-134 RRD 3/31/2020 0

pCi/m3 124827006 Vogtle Air Qtr Comp I-131 RRD 3/31/2020 0

pCi/m3 124827006 Vogtle Air Filters Gross Beta RRD 3/31/2020

.02149 pCi/m3 124783006 Vogtle Air Qtr Comp Be-7 SIM 3/31/2020

.07539 pCi/m3 124827003 Vogtle Air Filters Gross Beta SIM 3/31/2020

.02733 pCi/m3 124783003 Vogtle Air Qtr Comp Cs-137 SIM 3/31/2020 0

pCi/m3 124827003 Vogtle Air Qtr Comp Cs-134 SIM 3/31/2020 0

pCi/m3 124827003 Vogtle Air Qtr Comp I-131 SIM 3/31/2020 0

pCi/m3 124827003 Vogtle Vegetation Cs-137 Simulator 3/31/2020 0

pCi/Kg 124785002 Vogtle Vegetation Be-7 Simulator 3/31/2020 570.95 pCi/Kg 124785002 Vogtle Vegetation K-40 Simulator 3/31/2020 4978.3 pCi/Kg 124785002 Vogtle Vegetation I-131 Simulator 3/31/2020 0

pCi/Kg 124785002 Vogtle Vegetation Cs-134 Simulator 3/31/2020 0

pCi/Kg 124785002 Vogtle Air Qtr Comp Cs-134 MET 3/31/2020 0

pCi/m3 124827005 Vogtle Air Qtr Comp Cs-137 MET 3/31/2020 0

pCi/m3 124827005 Vogtle Air Qtr Comp Be-7 MET 3/31/2020

.08233 pCi/m3 124827005 Vogtle Air Filters Gross Beta MET 3/31/2020

.02085 pCi/m3 124783005 Vogtle Air Qtr Comp I-131 MET 3/31/2020 0

pCi/m3 124827005 Vogtle Air Qtr Comp Cs-134 DIS 3/31/2020 0

pCi/m3 124827004 Vogtle Air Qtr Comp Be-7 DIS 3/31/2020

.08125 pCi/m3 124827004 Vogtle Air Filters Gross Beta DIS 3/31/2020

.02044 pCi/m3 124783004 Vogtle Air Qtr Comp I-131 DIS 3/31/2020 0

pCi/m3 124827004 Vogtle Air Qtr Comp Cs-137 DIS 3/31/2020 0

pCi/m3 124827004 Vogtle Air Filters Gross Beta DIS 4/6/2020

.02217 pCi/m3 124859004 Vogtle Air Filters Gross Beta MET 4/6/2020

.01983 pCi/m3 124859005 Vogtle Air Filters Gross Beta SIM 4/6/2020

.02041 pCi/m3 124859003 Vogtle Air Filters Gross Beta RRD 4/6/2020

.02479 pCi/m3 124859006 Vogtle Air Filters Gross Beta HAN 4/6/2020

.02095 pCi/m3 124859007 Vogtle Air Filters Gross Beta WAY 4/6/2020

.02337 pCi/m3 124859001 Vogtle Air Filters Gross Beta GIR 4/6/2020

.02351 pCi/m3 124859002 Vogtle Water H-3 Tritium FAUC 4/7/2020 136 pCi/L 124988002 Vogtle Water H-3 Tritium RAUC 4/7/2020

-47.1 pCi/L 124988001 Vogtle Water H-3 Tritium FPUR 4/7/2020 282 pCi/L 124988006 Vogtle Water H-3 Tritium RPUR 4/7/2020 228 pCi/L 124988005 Vogtle Water H-3 Tritium FPOR 4/7/2020 243 pCi/L 124988004 Vogtle Water H-3 Tritium RPOR 4/7/2020 227 pCi/L 124988003 Vogtle Air Filters Gross Beta GIR 4/14/2020

.02509 pCi/m3 124895002 Vogtle Milk Gamma I-131 GIR 4/14/2020 0

pCi/L 124892001 Vogtle Milk Gamma Cs-134 GIR 4/14/2020 0

pCi/L 124892001 Vogtle Milk Gamma Cs-137 GIR 4/14/2020 0

pCi/L 124892001 Vogtle Milk Gamma Ba-140 GIR 4/14/2020 0

pCi/L 124892001 Vogtle Milk Gamma La-140 GIR 4/14/2020 0

pCi/L 124892001 Vogtle Milk Gamma Be-7 GIR 4/14/2020 0

pCi/L 124892001 Vogtle Milk Gamma K-40 GIR 4/14/2020 1460.1 pCi/L 124892001 Vogtle Air Filters Gross Beta WAY 4/14/2020

.02896 pCi/m3 124895001 Vogtle Air Filters Gross Beta HAN 4/14/2020

.02843 pCi/m3 124895007 Vogtle Air Filters Gross Beta RRD 4/14/2020

.02507 pCi/m3 124895006 Vogtle Air Filters Gross Beta SIM 4/14/2020

.02248 pCi/m3 124895003 Vogtle Air Filters Gross Beta MET 4/14/2020

.02819 pCi/m3 124895005 Vogtle Air Filters Gross Beta DIS 4/14/2020

.02967 pCi/m3 124895004 Vogtle Sediment Co-60 1533 4/14/2020 0

pCi/Kg 124894002 Vogtle Sediment Cs-134 1533 4/14/2020 0

pCi/Kg 124894002 Vogtle Sediment Cs-137 1533 4/14/2020 0

pCi/Kg 124894002 Vogtle Sediment Be-7 1533 4/14/2020 460.36 pCi/Kg 124894002 Vogtle Sediment K-40 1533 4/14/2020 15191 pCi/Kg 124894002 Vogtle Sediment Co-58 1533 4/14/2020 0

pCi/Kg 124894002 Vogtle River Water Mn-54 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Fe-59 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Co-58 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Co-60 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Zn-65 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Zr-95 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Nb-95 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water I-131 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Cs-134 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Cs-137 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Ba-140 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water La-140 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water Be-7 1512 4/14/2020 0

pCi/L 124893001 Vogtle River Water K-40 1512 4/14/2020 0

pCi/L 124893001 Vogtle Water H-3 Tritium 1512 4/14/2020

-84.4 pCi/L 124987003 Vogtle Water H-3 Tritium 1504 4/14/2020 1600 pCi/L 124987002 Vogtle River Water Fe-59 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water Co-58 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water Co-60 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water Zn-65 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water Zr-95 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water Nb-95 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water I-131 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water Cs-134 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water Cs-137 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water Ba-140 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water La-140 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water Be-7 1504 4/14/2020 0

pCi/L 124893002 Vogtle River Water K-40 1504 4/14/2020 0

pCi/L 124893002

Vogtle River Water Mn-54 1504 4/14/2020 0

pCi/L 124893002 Vogtle Sediment Be-7 1502 4/14/2020 2572.7 pCi/Kg 124894001 Vogtle Sediment Cs-137 1502 4/14/2020 113.96 pCi/Kg 124894001 Vogtle Sediment Cs-134 1502 4/14/2020 0

pCi/Kg 124894001 Vogtle Sediment Co-60 1502 4/14/2020 0

pCi/Kg 124894001 Vogtle Sediment Co-58 1502 4/14/2020 0

pCi/Kg 124894001 Vogtle Sediment K-40 1502 4/14/2020 13514 pCi/Kg 124894001 Vogtle River Water I-131 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Cs-134 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Cs-137 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Ba-140 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water La-140 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Be-7 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water K-40 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Mn-54 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Fe-59 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Co-58 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Co-60 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Zn-65 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Zr-95 1495 4/14/2020 0

pCi/L 124893003 Vogtle River Water Nb-95 1495 4/14/2020 0

pCi/L 124893003 Vogtle Water H-3 Tritium 1495 4/14/2020

-65.8 pCi/L 124987001 Vogtle Air Filters Gross Beta WAY 4/21/2020

.02501 pCi/m3 124968001 Vogtle Air Filters Gross Beta GIR 4/21/2020

.0213 pCi/m3 124968002 Vogtle Air Filters Gross Beta HAN 4/21/2020

.02166 pCi/m3 124968007 Vogtle Air Filters Gross Beta RRD 4/21/2020

.0236 pCi/m3 124968006 Vogtle Air Filters Gross Beta SIM 4/21/2020

.02086 pCi/m3 124968003 Vogtle Air Filters Gross Beta MET 4/21/2020

.02377 pCi/m3 124968005 Vogtle Air Filters Gross Beta DIS 4/21/2020

.02428 pCi/m3 124968004 Vogtle Air Filters Gross Beta GIR 4/28/2020

.01631 pCi/m3 125037002 Vogtle Milk Gamma Be-7 GIR 4/28/2020 0

pCi/L 125035001 Vogtle Milk Gamma K-40 GIR 4/28/2020 1497.6 pCi/L 125035001 Vogtle Milk Gamma I-131 GIR 4/28/2020 0

pCi/L 125035001 Vogtle Milk Gamma Cs-134 GIR 4/28/2020 0

pCi/L 125035001 Vogtle Milk Gamma Cs-137 GIR 4/28/2020 1.6164 pCi/L 125035001 Vogtle Milk Gamma Ba-140 GIR 4/28/2020 0

pCi/L 125035001 Vogtle Milk Gamma La-140 GIR 4/28/2020 0

pCi/L 125035001 Vogtle Air Filters Gross Beta WAY 4/28/2020

.02035 pCi/m3 125037001 Vogtle Vegetation Cs-134 Waynesboro 4/28/2020 0

pCi/Kg 125036001 Vogtle Vegetation Cs-137 Waynesboro 4/28/2020 0

pCi/Kg 125036001 Vogtle Vegetation Be-7 Waynesboro 4/28/2020 541.96 pCi/Kg 125036001 Vogtle Vegetation K-40 Waynesboro 4/28/2020 3920.5 pCi/Kg 125036001 Vogtle Vegetation I-131 Waynesboro 4/28/2020 0

pCi/Kg 125036001 Vogtle Air Filters Gross Beta HAN 4/28/2020

.02037 pCi/m3 125037007 Vogtle Vegetation Cs-134 Hancock Landing Road 4/28/2020 0

pCi/Kg 125036003 Vogtle Vegetation Cs-137 Hancock Landing Road 4/28/2020 0

pCi/Kg 125036003 Vogtle Vegetation Be-7 Hancock Landing Road 4/28/2020 566.46 pCi/Kg 125036003 Vogtle Vegetation K-40 Hancock Landing Road 4/28/2020 5256.8 pCi/Kg 125036003 Vogtle Vegetation I-131 Hancock Landing Road 4/28/2020 0

pCi/Kg 125036003 Vogtle Air Filters Gross Beta RRD 4/28/2020

.02551 pCi/m3 125037006 Vogtle Air Filters Gross Beta SIM 4/28/2020

.02106 pCi/m3 125037003 Vogtle Vegetation Cs-134 Simulator 4/28/2020 0

pCi/Kg 125036002 Vogtle Vegetation Cs-137 Simulator 4/28/2020 0

pCi/Kg 125036002 Vogtle Vegetation Be-7 Simulator 4/28/2020 1347.5 pCi/Kg 125036002 Vogtle Vegetation K-40 Simulator 4/28/2020 4004.8 pCi/Kg 125036002 Vogtle Vegetation I-131 Simulator 4/28/2020 0

pCi/Kg 125036002 Vogtle Air Filters Gross Beta MET 4/28/2020

.01943 pCi/m3 125037005 Vogtle Air Filters Gross Beta DIS 4/28/2020

.02178 pCi/m3 125037004 Vogtle Air Filters Gross Beta GIR 5/5/2020

.01691 pCi/m3 125114002 Vogtle Air Filters Gross Beta WAY 5/5/2020

.02109 pCi/m3 125114001 Vogtle Air Filters Gross Beta HAN 5/5/2020

.02018 pCi/m3 125114007 Vogtle Air Filters Gross Beta RRD 5/5/2020

.02306 pCi/m3 125114006 Vogtle Air Filters Gross Beta SIM 5/5/2020

.02097 pCi/m3 125114003 Vogtle Air Filters Gross Beta MET 5/5/2020

.01662 pCi/m3 125114005 Vogtle Air Filters Gross Beta DIS 5/5/2020

.02361 pCi/m3 125114004 Vogtle Milk Gamma K-40 GIR 5/12/2020 1419.4 pCi/L 125164001 Vogtle Milk Gamma Be-7 GIR 5/12/2020 0

pCi/L 125164001 Vogtle Milk Gamma I-131 GIR 5/12/2020 0

pCi/L 125164001 Vogtle Milk Gamma Cs-134 GIR 5/12/2020 0

pCi/L 125164001 Vogtle Milk Gamma Cs-137 GIR 5/12/2020 0

pCi/L 125164001 Vogtle Milk Gamma Ba-140 GIR 5/12/2020 0

pCi/L 125164001 Vogtle Milk Gamma La-140 GIR 5/12/2020 0

pCi/L 125164001 Vogtle Air Filters Gross Beta GIR 5/12/2020

.01724 pCi/m3 125165002 Vogtle Air Filters Gross Beta WAY 5/12/2020

.02456 pCi/m3 125165001 Vogtle Air Filters Gross Beta HAN 5/12/2020

.02581 pCi/m3 125165007 Vogtle Air Filters Gross Beta RRD 5/12/2020

.03001 pCi/m3 125165006 Vogtle Air Filters Gross Beta SIM 5/12/2020

.02377 pCi/m3 125165003 Vogtle Air Filters Gross Beta MET 5/12/2020

.02498 pCi/m3 125165005 Vogtle Air Filters Gross Beta DIS 5/12/2020

.02635 pCi/m3 125165004 Vogtle River Water Fe-59 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Co-58 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Co-60 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Zn-65 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Zr-95 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Nb-95 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water I-131 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Cs-134 1512 5/12/2020 0

pCi/L 125163001

Vogtle River Water Cs-137 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Ba-140 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water La-140 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Be-7 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water K-40 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Mn-54 1512 5/12/2020 0

pCi/L 125163001 Vogtle River Water Nb-95 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water I-131 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Cs-134 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Cs-137 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Ba-140 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water La-140 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Be-7 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Mn-54 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Fe-59 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Co-58 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Co-60 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Zn-65 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Zr-95 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water K-40 1504 5/12/2020 0

pCi/L 125163002 Vogtle River Water Nb-95 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water I-131 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Cs-134 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Cs-137 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Ba-140 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water La-140 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Be-7 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water K-40 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Mn-54 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Fe-59 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Co-58 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Co-60 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Zn-65 1495 5/12/2020 0

pCi/L 125163003 Vogtle River Water Zr-95 1495 5/12/2020 0

pCi/L 125163003 Vogtle Air Filters Gross Beta DIS 5/18/2020

.01778 pCi/m3 125217004 Vogtle Air Filters Gross Beta MET 5/18/2020

.01736 pCi/m3 125217005 Vogtle Air Filters Gross Beta SIM 5/18/2020

.02156 pCi/m3 125217003 Vogtle Air Filters Gross Beta RRD 5/18/2020

.01598 pCi/m3 125217006 Vogtle Air Filters Gross Beta HAN 5/18/2020

.02352 pCi/m3 125217007 Vogtle Air Filters Gross Beta WAY 5/18/2020

.01855 pCi/m3 125217001 Vogtle Air Filters Gross Beta GIR 5/18/2020

.01439 pCi/m3 125217002 Vogtle Fish Fe-59 1535 Bass 5/20/2020 0

pCi/Kg 125236001 Vogtle Fish Mn-54 1535 Bass 5/20/2020 0

pCi/Kg 125236001 Vogtle Fish K-40 1535 Bass 5/20/2020 3393.6 pCi/Kg 125236001 Vogtle Fish Be-7 1535 Bass 5/20/2020 0

pCi/Kg 125236001 Vogtle Fish Cs-137 1535 Bass 5/20/2020 48.895 pCi/Kg 125236001 Vogtle Fish Cs-134 1535 Bass 5/20/2020 0

pCi/Kg 125236001 Vogtle Fish Zn-65 1535 Bass 5/20/2020 0

pCi/Kg 125236001 Vogtle Fish Co-60 1535 Bass 5/20/2020 0

pCi/Kg 125236001 Vogtle Fish Co-58 1535 Bass 5/20/2020 0

pCi/Kg 125236001 Vogtle Fish K-40 1535 Sucker 5/20/2020 3164.5 pCi/Kg 125236002 Vogtle Fish Be-7 1535 Sucker 5/20/2020 0

pCi/Kg 125236002 Vogtle Fish Cs-137 1535 Sucker 5/20/2020 0

pCi/Kg 125236002 Vogtle Fish Cs-134 1535 Sucker 5/20/2020 0

pCi/Kg 125236002 Vogtle Fish Zn-65 1535 Sucker 5/20/2020 0

pCi/Kg 125236002 Vogtle Fish Co-60 1535 Sucker 5/20/2020 0

pCi/Kg 125236002 Vogtle Fish Co-58 1535 Sucker 5/20/2020 0

pCi/Kg 125236002 Vogtle Fish Fe-59 1535 Sucker 5/20/2020 0

pCi/Kg 125236002 Vogtle Fish Mn-54 1535 Sucker 5/20/2020 0

pCi/Kg 125236002 Vogtle Fish Zn-65 149-147 Bass 5/20/2020 0

pCi/Kg 125236004 Vogtle Fish Cs-134 149-147 Bass 5/20/2020 0

pCi/Kg 125236004 Vogtle Fish Cs-137 149-147 Bass 5/20/2020 40.721 pCi/Kg 125236004 Vogtle Fish Be-7 149-147 Bass 5/20/2020 0

pCi/Kg 125236004 Vogtle Fish K-40 149-147 Bass 5/20/2020 3640.6 pCi/Kg 125236004 Vogtle Fish Mn-54 149-147 Bass 5/20/2020 0

pCi/Kg 125236004 Vogtle Fish Fe-59 149-147 Bass 5/20/2020 0

pCi/Kg 125236004 Vogtle Fish Co-58 149-147 Bass 5/20/2020 0

pCi/Kg 125236004 Vogtle Fish Co-60 149-147 Bass 5/20/2020 0

pCi/Kg 125236004 Vogtle Fish Cs-137 149-147 Mullet 5/20/2020 0

pCi/Kg 125236003 Vogtle Fish Cs-134 149-147 Mullet 5/20/2020 0

pCi/Kg 125236003 Vogtle Fish Zn-65 149-147 Mullet 5/20/2020 0

pCi/Kg 125236003 Vogtle Fish Co-60 149-147 Mullet 5/20/2020 0

pCi/Kg 125236003 Vogtle Fish Co-58 149-147 Mullet 5/20/2020 0

pCi/Kg 125236003 Vogtle Fish Fe-59 149-147 Mullet 5/20/2020 0

pCi/Kg 125236003 Vogtle Fish Mn-54 149-147 Mullet 5/20/2020 0

pCi/Kg 125236003 Vogtle Fish K-40 149-147 Mullet 5/20/2020 3301.9 pCi/Kg 125236003 Vogtle Fish Be-7 149-147 Mullet 5/20/2020 0

pCi/Kg 125236003 Vogtle Fish Cs-137 149-147 Sucker 5/20/2020 0

pCi/Kg 125236005 Vogtle Fish Cs-134 149-147 Sucker 5/20/2020 0

pCi/Kg 125236005 Vogtle Fish Zn-65 149-147 Sucker 5/20/2020 0

pCi/Kg 125236005 Vogtle Fish Co-60 149-147 Sucker 5/20/2020 0

pCi/Kg 125236005 Vogtle Fish Co-58 149-147 Sucker 5/20/2020 0

pCi/Kg 125236005 Vogtle Fish Fe-59 149-147 Sucker 5/20/2020 0

pCi/Kg 125236005 Vogtle Fish Mn-54 149-147 Sucker 5/20/2020 0

pCi/Kg 125236005 Vogtle Fish K-40 149-147 Sucker 5/20/2020 3557.8 pCi/Kg 125236005 Vogtle Fish Be-7 149-147 Sucker 5/20/2020 0

pCi/Kg 125236005 Vogtle Milk Gamma Cs-134 GIR 5/26/2020 0

pCi/L 125256001

Vogtle Milk Gamma I-131 GIR 5/26/2020 0

pCi/L 125256001 Vogtle Milk Gamma K-40 GIR 5/26/2020 1433.9 pCi/L 125256001 Vogtle Milk Gamma Cs-137 GIR 5/26/2020 0

pCi/L 125256001 Vogtle Milk Gamma Ba-140 GIR 5/26/2020 0

pCi/L 125256001 Vogtle Milk Gamma La-140 GIR 5/26/2020 0

pCi/L 125256001 Vogtle Milk Gamma Be-7 GIR 5/26/2020 0

pCi/L 125256001 Vogtle Air Filters Gross Beta GIR 5/26/2020

.01234 pCi/m3 125257002 Vogtle Air Filters Gross Beta WAY 5/26/2020

.01928 pCi/m3 125257001 Vogtle Vegetation I-131 Waynesboro 5/26/2020 0

pCi/Kg 125259001 Vogtle Vegetation Cs-134 Waynesboro 5/26/2020 0

pCi/Kg 125259001 Vogtle Vegetation Cs-137 Waynesboro 5/26/2020 0

pCi/Kg 125259001 Vogtle Vegetation Be-7 Waynesboro 5/26/2020 433.95 pCi/Kg 125259001 Vogtle Vegetation K-40 Waynesboro 5/26/2020 3257.3 pCi/Kg 125259001 Vogtle Air Filters Gross Beta HAN 5/26/2020

.01809 pCi/m3 125257007 Vogtle Vegetation I-131 Hancock Landing Road 5/26/2020 0

pCi/Kg 125259003 Vogtle Vegetation Cs-134 Hancock Landing Road 5/26/2020 0

pCi/Kg 125259003 Vogtle Vegetation Cs-137 Hancock Landing Road 5/26/2020 0

pCi/Kg 125259003 Vogtle Vegetation Be-7 Hancock Landing Road 5/26/2020 670.94 pCi/Kg 125259003 Vogtle Vegetation K-40 Hancock Landing Road 5/26/2020 2947.9 pCi/Kg 125259003 Vogtle Air Filters Gross Beta RRD 5/26/2020

.02005 pCi/m3 125257006 Vogtle Air Filters Gross Beta SIM 5/26/2020

.0178 pCi/m3 125257003 Vogtle Vegetation I-131 Simulator 5/26/2020 0

pCi/Kg 125259002 Vogtle Vegetation Cs-134 Simulator 5/26/2020 0

pCi/Kg 125259002 Vogtle Vegetation Cs-137 Simulator 5/26/2020 0

pCi/Kg 125259002 Vogtle Vegetation Be-7 Simulator 5/26/2020 1111.2 pCi/Kg 125259002 Vogtle Vegetation K-40 Simulator 5/26/2020 4731.9 pCi/Kg 125259002 Vogtle Air Filters Gross Beta MET 5/26/2020

.02015 pCi/m3 125257005 Vogtle Air Filters Gross Beta DIS 5/26/2020

.01768 pCi/m3 125257004 Vogtle Air Filters Gross Beta GIR 6/2/2020

.01117 pCi/m3 125326002 Vogtle Air Filters Gross Beta WAY 6/2/2020

.01676 pCi/m3 125326001 Vogtle Air Filters Gross Beta HAN 6/2/2020

.01694 pCi/m3 125326007 Vogtle Air Filters Gross Beta RRD 6/2/2020

.02097 pCi/m3 125326006 Vogtle Air Filters Gross Beta SIM 6/2/2020

.01832 pCi/m3 125326003 Vogtle Air Filters Gross Beta MET 6/2/2020

.01836 pCi/m3 125326005 Vogtle Air Filters Gross Beta DIS 6/2/2020

.01897 pCi/m3 125326004 Vogtle Milk Gamma Cs-137 GIR 6/9/2020 0

pCi/L 125378001 Vogtle Milk Gamma Ba-140 GIR 6/9/2020 0

pCi/L 125378001 Vogtle Milk Gamma La-140 GIR 6/9/2020 0

pCi/L 125378001 Vogtle Milk Gamma Be-7 GIR 6/9/2020 0

pCi/L 125378001 Vogtle Milk Gamma K-40 GIR 6/9/2020 1390.8 pCi/L 125378001 Vogtle Milk Gamma I-131 GIR 6/9/2020 0

pCi/L 125378001 Vogtle Milk Gamma Cs-134 GIR 6/9/2020 0

pCi/L 125378001 Vogtle Air Filters Gross Beta GIR 6/9/2020

.0131 pCi/m3 125381002 Vogtle Air Filters Gross Beta WAY 6/9/2020

.01887 pCi/m3 125381001 Vogtle Air Filters Gross Beta HAN 6/9/2020

.01741 pCi/m3 125381007 Vogtle Air Filters Gross Beta RRD 6/9/2020

.02326 pCi/m3 125381006 Vogtle Air Filters Gross Beta SIM 6/9/2020

.02203 pCi/m3 125381003 Vogtle Air Filters Gross Beta MET 6/9/2020

.01806 pCi/m3 125381005 Vogtle Air Filters Gross Beta DIS 6/9/2020

.01831 pCi/m3 125381004 Vogtle River Water Cs-137 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Ba-140 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water La-140 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Be-7 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water K-40 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Mn-54 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Fe-59 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Co-58 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Co-60 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Zn-65 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Zr-95 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Nb-95 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water I-131 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Cs-134 1495 6/9/2020 0

pCi/L 125379003 Vogtle River Water Co-60 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Zn-65 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Zr-95 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Nb-95 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water I-131 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Cs-134 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Cs-137 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Ba-140 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water La-140 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Be-7 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water K-40 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Mn-54 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Fe-59 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Co-58 1504 6/9/2020 0

pCi/L 125379002 Vogtle River Water Mn-54 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water Fe-59 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water Co-58 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water Co-60 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water Zn-65 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water Zr-95 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water Nb-95 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water I-131 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water Cs-134 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water Cs-137 1512 6/9/2020 0

pCi/L 125379001

Vogtle River Water Ba-140 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water La-140 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water Be-7 1512 6/9/2020 0

pCi/L 125379001 Vogtle River Water K-40 1512 6/9/2020 0

pCi/L 125379001 Vogtle Air Filters Gross Beta GIR 6/16/2020

.01007 pCi/m3 125432002 Vogtle Air Filters Gross Beta WAY 6/16/2020

.01848 pCi/m3 125432001 Vogtle Air Filters Gross Beta HAN 6/16/2020

.01924 pCi/m3 125432007 Vogtle Air Filters Gross Beta RRD 6/16/2020

.01732 pCi/m3 125432006 Vogtle Air Filters Gross Beta SIM 6/16/2020

.01704 pCi/m3 125432003 Vogtle Air Filters Gross Beta MET 6/16/2020

.01799 pCi/m3 125432005 Vogtle Air Filters Gross Beta DIS 6/16/2020

.01725 pCi/m3 125432004 Vogtle Milk Gamma I-131 GIR 6/23/2020 0

pCi/L 125473001 Vogtle Milk Gamma K-40 GIR 6/23/2020 1421 pCi/L 125473001 Vogtle Milk Gamma Be-7 GIR 6/23/2020 0

pCi/L 125473001 Vogtle Milk Gamma Cs-134 GIR 6/23/2020 0

pCi/L 125473001 Vogtle Milk Gamma Cs-137 GIR 6/23/2020 0

pCi/L 125473001 Vogtle Milk Gamma Ba-140 GIR 6/23/2020 0

pCi/L 125473001 Vogtle Milk Gamma La-140 GIR 6/23/2020 0

pCi/L 125473001 Vogtle Air Filters Gross Beta GIR 6/23/2020

.02037 pCi/m3 125489002 Vogtle Air Filters Gross Beta WAY 6/23/2020

.0228 pCi/m3 125489001 Vogtle Air Filters Gross Beta HAN 6/23/2020

.02102 pCi/m3 125489007 Vogtle Air Filters Gross Beta RRD 6/23/2020

.02309 pCi/m3 125489006 Vogtle Air Filters Gross Beta SIM 6/23/2020

.02394 pCi/m3 125489003 Vogtle Air Filters Gross Beta MET 6/23/2020

.01854 pCi/m3 125489005 Vogtle Air Filters Gross Beta DIS 6/23/2020

.02045 pCi/m3 125489004 Vogtle Air Qtr Comp I-131 GIR 6/30/2020 0

pCi/m3 125785002 Vogtle Air Qtr Comp Cs-134 GIR 6/30/2020 0

pCi/m3 125785002 Vogtle Air Qtr Comp Cs-137 GIR 6/30/2020 0

pCi/m3 125785002 Vogtle Air Qtr Comp Be-7 GIR 6/30/2020

.05463 pCi/m3 125785002 Vogtle Air Filters Gross Beta GIR 6/30/2020

.02197 pCi/m3 125552002 Vogtle Air Qtr Comp Cs-134 WAY 6/30/2020 0

pCi/m3 125785001 Vogtle Air Qtr Comp I-131 WAY 6/30/2020 0

pCi/m3 125785001 Vogtle Air Qtr Comp Be-7 WAY 6/30/2020

.09133 pCi/m3 125785001 Vogtle Air Qtr Comp Cs-137 WAY 6/30/2020 0

pCi/m3 125785001 Vogtle Air Filters Gross Beta WAY 6/30/2020

.02081 pCi/m3 125552001 Vogtle Vegetation Cs-134 Waynesboro 6/30/2020 0

pCi/Kg 125551001 Vogtle Vegetation Cs-137 Waynesboro 6/30/2020 0

pCi/Kg 125551001 Vogtle Vegetation Be-7 Waynesboro 6/30/2020 516.08 pCi/Kg 125551001 Vogtle Vegetation K-40 Waynesboro 6/30/2020 5198.5 pCi/Kg 125551001 Vogtle Vegetation I-131 Waynesboro 6/30/2020 0

pCi/Kg 125551001 Vogtle Air Qtr Comp Cs-134 HAN 6/30/2020 0

pCi/m3 125785007 Vogtle Air Qtr Comp I-131 HAN 6/30/2020 0

pCi/m3 125785007 Vogtle Air Qtr Comp Be-7 HAN 6/30/2020

.07401 pCi/m3 125785007 Vogtle Air Qtr Comp Cs-137 HAN 6/30/2020 0

pCi/m3 125785007 Vogtle Air Filters Gross Beta HAN 6/30/2020

.01817 pCi/m3 125552007 Vogtle Vegetation Cs-134 Hancock Landing Road 6/30/2020 0

pCi/Kg 125551003 Vogtle Vegetation Cs-137 Hancock Landing Road 6/30/2020 0

pCi/Kg 125551003 Vogtle Vegetation Be-7 Hancock Landing Road 6/30/2020 914.4 pCi/Kg 125551003 Vogtle Vegetation K-40 Hancock Landing Road 6/30/2020 4015.8 pCi/Kg 125551003 Vogtle Vegetation I-131 Hancock Landing Road 6/30/2020 0

pCi/Kg 125551003 Vogtle Air Qtr Comp Be-7 RRD 6/30/2020

.07387 pCi/m3 125785006 Vogtle Air Qtr Comp Cs-137 RRD 6/30/2020 0

pCi/m3 125785006 Vogtle Air Qtr Comp I-131 RRD 6/30/2020 0

pCi/m3 125785006 Vogtle Air Qtr Comp Cs-134 RRD 6/30/2020 0

pCi/m3 125785006 Vogtle Air Filters Gross Beta RRD 6/30/2020

.02037 pCi/m3 125552006 Vogtle Air Filters Gross Beta SIM 6/30/2020

.01741 pCi/m3 125552003 Vogtle Air Qtr Comp Be-7 SIM 6/30/2020

.09143 pCi/m3 125785003 Vogtle Air Qtr Comp I-131 SIM 6/30/2020 0

pCi/m3 125785003 Vogtle Air Qtr Comp Cs-134 SIM 6/30/2020 0

pCi/m3 125785003 Vogtle Air Qtr Comp Cs-137 SIM 6/30/2020 0

pCi/m3 125785003 Vogtle Vegetation Cs-134 Simulator 6/30/2020 0

pCi/Kg 125551002 Vogtle Vegetation Cs-137 Simulator 6/30/2020 0

pCi/Kg 125551002 Vogtle Vegetation Be-7 Simulator 6/30/2020 255.62 pCi/Kg 125551002 Vogtle Vegetation K-40 Simulator 6/30/2020 5235.4 pCi/Kg 125551002 Vogtle Vegetation I-131 Simulator 6/30/2020 0

pCi/Kg 125551002 Vogtle Air Qtr Comp Be-7 MET 6/30/2020

.1112 pCi/m3 125785005 Vogtle Air Qtr Comp Cs-137 MET 6/30/2020 0

pCi/m3 125785005 Vogtle Air Qtr Comp Cs-134 MET 6/30/2020 0

pCi/m3 125785005 Vogtle Air Qtr Comp I-131 MET 6/30/2020 0

pCi/m3 125785005 Vogtle Air Filters Gross Beta MET 6/30/2020

.01964 pCi/m3 125552005 Vogtle Air Qtr Comp Be-7 DIS 6/30/2020

.07614 pCi/m3 125785004 Vogtle Air Qtr Comp Cs-137 DIS 6/30/2020 0

pCi/m3 125785004 Vogtle Air Qtr Comp I-131 DIS 6/30/2020 0

pCi/m3 125785004 Vogtle Air Qtr Comp Cs-134 DIS 6/30/2020 0

pCi/m3 125785004 Vogtle Air Filters Gross Beta DIS 6/30/2020

.02227 pCi/m3 125552004 Vogtle Air Filters Gross Beta DIS 7/6/2020

.01875 pCi/m3 125600004 Vogtle Air Filters Gross Beta MET 7/6/2020

.02342 pCi/m3 125600005 Vogtle Air Filters Gross Beta HAN 7/6/2020

.02692 pCi/m3 125600007 Vogtle Air Filters Gross Beta RRD 7/6/2020

.02799 pCi/m3 125600006 Vogtle Air Filters Gross Beta SIM 7/6/2020

.02618 pCi/m3 125600003 Vogtle Air Filters Gross Beta GIR 7/6/2020

.01931 pCi/m3 125600002 Vogtle Air Filters Gross Beta WAY 7/6/2020

.02107 pCi/m3 125600001 Vogtle Water H-3 Tritium RAUC 7/7/2020 0

pCi/L 125730001 Vogtle Water H-3 Tritium FAUC 7/7/2020 0

pCi/L 125730002 Vogtle Water H-3 Tritium FPUR 7/7/2020 116 pCi/L 125730006 Vogtle Water H-3 Tritium RPUR 7/7/2020 225 pCi/L 125730005 Vogtle Water H-3 Tritium FPOR 7/7/2020 376 pCi/L 125730004

Vogtle Water H-3 Tritium RPOR 7/7/2020 233 pCi/L 125730003 Vogtle Air Filters Gross Beta GIR 7/14/2020

.01856 pCi/m3 125662002 Vogtle Milk Gamma Cs-134 GIR 7/14/2020 0

pCi/L 125664001 Vogtle Milk Gamma K-40 GIR 7/14/2020 1322.9 pCi/L 125664001 Vogtle Milk Gamma Be-7 GIR 7/14/2020 0

pCi/L 125664001 Vogtle Milk Gamma La-140 GIR 7/14/2020 0

pCi/L 125664001 Vogtle Milk Gamma Ba-140 GIR 7/14/2020 0

pCi/L 125664001 Vogtle Milk Gamma Cs-137 GIR 7/14/2020 0

pCi/L 125664001 Vogtle Milk Gamma I-131 GIR 7/14/2020 0

pCi/L 125664001 Vogtle Air Filters Gross Beta WAY 7/14/2020

.01654 pCi/m3 125662001 Vogtle Air Filters Gross Beta HAN 7/14/2020

.0176 pCi/m3 125662007 Vogtle Air Filters Gross Beta RRD 7/14/2020

.01988 pCi/m3 125662006 Vogtle Air Filters Gross Beta SIM 7/14/2020

.02127 pCi/m3 125662003 Vogtle Air Filters Gross Beta MET 7/14/2020

.01809 pCi/m3 125662005 Vogtle Air Filters Gross Beta DIS 7/14/2020

.01613 pCi/m3 125662004 Vogtle River Water Nb-95 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water I-131 1512 7/14/2020 0

pCi/L 125665001 Vogtle Water H-3 Tritium 1512 7/14/2020 0

pCi/L 125729001 Vogtle River Water Cs-134 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Mn-54 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Fe-59 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Co-58 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Co-60 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Zn-65 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Cs-137 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Ba-140 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water La-140 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Be-7 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water K-40 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Zr-95 1512 7/14/2020 0

pCi/L 125665001 Vogtle River Water Be-7 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water K-40 1504 7/14/2020 0

pCi/L 125665002 Vogtle Water H-3 Tritium 1504 7/14/2020 0

pCi/L 125729002 Vogtle River Water Mn-54 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Fe-59 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Co-58 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Co-60 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Zn-65 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Zr-95 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Nb-95 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water I-131 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Cs-134 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Cs-137 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Ba-140 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water La-140 1504 7/14/2020 0

pCi/L 125665002 Vogtle River Water Fe-59 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Co-58 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Co-60 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Zn-65 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Zr-95 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Nb-95 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water I-131 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Cs-134 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Cs-137 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Ba-140 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water La-140 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Be-7 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water K-40 1495 7/14/2020 0

pCi/L 125665003 Vogtle River Water Mn-54 1495 7/14/2020 0

pCi/L 125665003 Vogtle Water H-3 Tritium 1495 7/14/2020 263 pCi/L 125729003 Vogtle Air Filters Gross Beta DIS 7/20/2020

.03687 pCi/m3 125788004 Vogtle Air Filters Gross Beta MET 7/20/2020

.03175 pCi/m3 125788005 Vogtle Air Filters Gross Beta SIM 7/20/2020

.03246 pCi/m3 125788003 Vogtle Air Filters Gross Beta RRD 7/20/2020

.0389 pCi/m3 125788006 Vogtle Air Filters Gross Beta HAN 7/20/2020

.04095 pCi/m3 125788007 Vogtle Air Filters Gross Beta GIR 7/20/2020

.03274 pCi/m3 125788002 Vogtle Air Filters Gross Beta WAY 7/20/2020

.03074 pCi/m3 125788001 Vogtle Milk Gamma K-40 GIR 7/28/2020 1344.5 pCi/L 125861001 Vogtle Milk Gamma Be-7 GIR 7/28/2020 0

pCi/L 125861001 Vogtle Milk Gamma La-140 GIR 7/28/2020 0

pCi/L 125861001 Vogtle Milk Gamma Ba-140 GIR 7/28/2020 0

pCi/L 125861001 Vogtle Milk Gamma Cs-134 GIR 7/28/2020 0

pCi/L 125861001 Vogtle Milk Gamma Cs-137 GIR 7/28/2020 0

pCi/L 125861001 Vogtle Milk Gamma I-131 GIR 7/28/2020 0

pCi/L 125861001 Vogtle Air Filters Gross Beta GIR 7/28/2020

.01514 pCi/m3 125886002 Vogtle Air Filters Gross Beta WAY 7/28/2020

.01539 pCi/m3 125886001 Vogtle Vegetation Cs-134 WAY 7/28/2020 0

pCi/Kg 125863001 Vogtle Vegetation Cs-137 WAY 7/28/2020 0

pCi/Kg 125863001 Vogtle Vegetation Be-7 WAY 7/28/2020 719.6 pCi/Kg 125863001 Vogtle Vegetation K-40 WAY 7/28/2020 4464.2 pCi/Kg 125863001 Vogtle Vegetation I-131 WAY 7/28/2020 0

pCi/Kg 125863001 Vogtle Air Filters Gross Beta HAN 7/28/2020

.01351 pCi/m3 125886007 Vogtle Vegetation Cs-134 HAN 7/28/2020 0

pCi/Kg 125863003 Vogtle Vegetation Cs-137 HAN 7/28/2020 0

pCi/Kg 125863003 Vogtle Vegetation Be-7 HAN 7/28/2020 331.72 pCi/Kg 125863003 Vogtle Vegetation K-40 HAN 7/28/2020 3151.2 pCi/Kg 125863003 Vogtle Vegetation I-131 HAN 7/28/2020 0

pCi/Kg 125863003

Vogtle Air Filters Gross Beta RRD 7/28/2020

.015 pCi/m3 125886006 Vogtle Air Filters Gross Beta SIM 7/28/2020

.01575 pCi/m3 125886003 Vogtle Vegetation Cs-134 SIM 7/28/2020 0

pCi/Kg 125863002 Vogtle Vegetation Cs-137 SIM 7/28/2020 0

pCi/Kg 125863002 Vogtle Vegetation Be-7 SIM 7/28/2020 399.83 pCi/Kg 125863002 Vogtle Vegetation K-40 SIM 7/28/2020 5329.1 pCi/Kg 125863002 Vogtle Vegetation I-131 SIM 7/28/2020 0

pCi/Kg 125863002 Vogtle Air Filters Gross Beta MET 7/28/2020

.01537 pCi/m3 125886005 Vogtle Air Filters Gross Beta DIS 7/28/2020

.01442 pCi/m3 125886004 Vogtle Air Filters Gross Beta DIS 8/3/2020

.02306 pCi/m3 125965004 Vogtle Air Filters Gross Beta MET 8/3/2020

.02107 pCi/m3 125965005 Vogtle Air Filters Gross Beta SIM 8/3/2020

.02591 pCi/m3 125965003 Vogtle Air Filters Gross Beta RRD 8/3/2020

.02857 pCi/m3 125965006 Vogtle Air Filters Gross Beta HAN 8/3/2020

.01826 pCi/m3 125965007 Vogtle Air Filters Gross Beta WAY 8/3/2020

.01876 pCi/m3 125965001 Vogtle Air Filters Gross Beta GIR 8/3/2020

.02269 pCi/m3 125965002 Vogtle Milk Gamma Ba-140 GIR 8/11/2020 0

pCi/L 126047001 Vogtle Milk Gamma I-131 GIR 8/11/2020 0

pCi/L 126047001 Vogtle Milk Gamma K-40 GIR 8/11/2020 1380.2 pCi/L 126047001 Vogtle Milk Gamma Be-7 GIR 8/11/2020 0

pCi/L 126047001 Vogtle Milk Gamma La-140 GIR 8/11/2020 0

pCi/L 126047001 Vogtle Milk Gamma Cs-134 GIR 8/11/2020 0

pCi/L 126047001 Vogtle Milk Gamma Cs-137 GIR 8/11/2020 0

pCi/L 126047001 Vogtle Air Filters Gross Beta GIR 8/11/2020

.02318 pCi/m3 126062002 Vogtle Air Filters Gross Beta WAY 8/11/2020

.01905 pCi/m3 126062001 Vogtle Air Filters Gross Beta HAN 8/11/2020

.02067 pCi/m3 126062007 Vogtle Air Filters Gross Beta RRD 8/11/2020

.02498 pCi/m3 126062006 Vogtle Air Filters Gross Beta SIM 8/11/2020

.02312 pCi/m3 126062003 Vogtle Air Filters Gross Beta MET 8/11/2020

.02175 pCi/m3 126062005 Vogtle Air Filters Gross Beta DIS 8/11/2020

.02256 pCi/m3 126062004 Vogtle River Water Zn-65 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Zr-95 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Nb-95 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water I-131 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Cs-134 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Cs-137 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Ba-140 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water La-140 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Be-7 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water K-40 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Mn-54 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Fe-59 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Co-58 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Co-60 1495 8/11/2020 0

pCi/L 126048003 Vogtle River Water Be-7 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water K-40 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Mn-54 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Fe-59 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Co-58 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Co-60 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Zn-65 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Zr-95 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water I-131 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Cs-134 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Cs-137 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Ba-140 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water La-140 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water Nb-95 1504 8/11/2020 0

pCi/L 126048002 Vogtle River Water K-40 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Mn-54 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Fe-59 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Co-58 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Co-60 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Zn-65 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Zr-95 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Nb-95 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water I-131 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Cs-134 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Cs-137 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Ba-140 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water La-140 1512 8/11/2020 0

pCi/L 126048001 Vogtle River Water Be-7 1512 8/11/2020 0

pCi/L 126048001 Vogtle Air Filters Gross Beta GIR 8/18/2020

.02368 pCi/m3 126176002 Vogtle Air Filters Gross Beta WAY 8/18/2020

.01997 pCi/m3 126176001 Vogtle Air Filters Gross Beta HAN 8/18/2020

.0235 pCi/m3 126176007 Vogtle Air Filters Gross Beta RRD 8/18/2020

.02527 pCi/m3 126176006 Vogtle Air Filters Gross Beta SIM 8/18/2020

.02572 pCi/m3 126176003 Vogtle Air Filters Gross Beta MET 8/18/2020

.02475 pCi/m3 126176005 Vogtle Air Filters Gross Beta DIS 8/18/2020

.02463 pCi/m3 126176004 Vogtle Milk Gamma K-40 GIR 8/25/2020 1354.8 pCi/L 126277001 Vogtle Milk Gamma I-131 GIR 8/25/2020 0

pCi/L 126277001 Vogtle Milk Gamma Cs-134 GIR 8/25/2020 0

pCi/L 126277001 Vogtle Milk Gamma Cs-137 GIR 8/25/2020 0

pCi/L 126277001 Vogtle Milk Gamma Ba-140 GIR 8/25/2020 0

pCi/L 126277001 Vogtle Milk Gamma La-140 GIR 8/25/2020 0

pCi/L 126277001 Vogtle Milk Gamma Be-7 GIR 8/25/2020 0

pCi/L 126277001 Vogtle Air Filters Gross Beta GIR 8/25/2020

.02052 pCi/m3 126329002

Vogtle Air Filters Gross Beta WAY 8/25/2020

.01932 pCi/m3 126329001 Vogtle Vegetation K-40 WAY 8/25/2020 3607.8 pCi/Kg 126328001 Vogtle Vegetation Be-7 WAY 8/25/2020 1127.1 pCi/Kg 126328001 Vogtle Vegetation Cs-134 WAY 8/25/2020 0

pCi/Kg 126328001 Vogtle Vegetation Cs-137 WAY 8/25/2020 0

pCi/Kg 126328001 Vogtle Vegetation I-131 WAY 8/25/2020 0

pCi/Kg 126328001 Vogtle Vegetation Cs-134 HAN 8/25/2020 0

pCi/Kg 126328003 Vogtle Vegetation Be-7 HAN 8/25/2020 543.59 pCi/Kg 126328003 Vogtle Vegetation K-40 HAN 8/25/2020 4089.8 pCi/Kg 126328003 Vogtle Vegetation Cs-137 HAN 8/25/2020 0

pCi/Kg 126328003 Vogtle Vegetation I-131 HAN 8/25/2020 0

pCi/Kg 126328003 Vogtle Air Filters Gross Beta HAN 8/25/2020

.02084 pCi/m3 126329007 Vogtle Air Filters Gross Beta RRD 8/25/2020

.02154 pCi/m3 126329006 Vogtle Air Filters Gross Beta SIM 8/25/2020

.01764 pCi/m3 126329003 Vogtle Vegetation I-131 SIM 8/25/2020 0

pCi/Kg 126328002 Vogtle Vegetation Cs-134 SIM 8/25/2020 0

pCi/Kg 126328002 Vogtle Vegetation Cs-137 SIM 8/25/2020 0

pCi/Kg 126328002 Vogtle Vegetation Be-7 SIM 8/25/2020 1303.2 pCi/Kg 126328002 Vogtle Vegetation K-40 SIM 8/25/2020 2635.1 pCi/Kg 126328002 Vogtle Air Filters Gross Beta MET 8/25/2020

.01913 pCi/m3 126329005 Vogtle Air Filters Gross Beta DIS 8/25/2020

.01703 pCi/m3 126329004 Vogtle Air Filters Gross Beta DIS 8/31/2020

.01549 pCi/m3 126341004 Vogtle Air Filters Gross Beta MET 8/31/2020

.01763 pCi/m3 126341005 Vogtle Air Filters Gross Beta SIM 8/31/2020

.02021 pCi/m3 126341003 Vogtle Air Filters Gross Beta WAY 8/31/2020

.01477 pCi/m3 126341001 Vogtle Air Filters Gross Beta HAN 8/31/2020

.01745 pCi/m3 126341007 Vogtle Air Filters Gross Beta RRD 8/31/2020

.01768 pCi/m3 126341006 Vogtle Air Filters Gross Beta GIR 8/31/2020

.01701 pCi/m3 126341002 Vogtle Milk Gamma Be-7 GIR 9/8/2020 0

pCi/L 126415001 Vogtle Milk Gamma La-140 GIR 9/8/2020 0

pCi/L 126415001 Vogtle Milk Gamma I-131 GIR 9/8/2020 0

pCi/L 126415001 Vogtle Milk Gamma Cs-134 GIR 9/8/2020 0

pCi/L 126415001 Vogtle Milk Gamma K-40 GIR 9/8/2020 1287.1 pCi/L 126415001 Vogtle Milk Gamma Cs-137 GIR 9/8/2020 0

pCi/L 126415001 Vogtle Milk Gamma Ba-140 GIR 9/8/2020 0

pCi/L 126415001 Vogtle Air Filters Gross Beta GIR 9/8/2020

.02505 pCi/m3 126430002 Vogtle Air Filters Gross Beta WAY 9/8/2020

.02772 pCi/m3 126430001 Vogtle Air Filters Gross Beta HAN 9/8/2020

.03125 pCi/m3 126430007 Vogtle Air Filters Gross Beta RRD 9/8/2020

.03543 pCi/m3 126430006 Vogtle Air Filters Gross Beta SIM 9/8/2020

.03184 pCi/m3 126430003 Vogtle Air Filters Gross Beta MET 9/8/2020

.03269 pCi/m3 126430005 Vogtle Air Filters Gross Beta DIS 9/8/2020

.02781 pCi/m3 126430004 Vogtle River Water Cs-137 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Ba-140 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water La-140 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Be-7 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water K-40 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Mn-54 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Fe-59 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Co-58 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Co-60 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Zn-65 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Zr-95 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Nb-95 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water I-131 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water Cs-134 1512 9/8/2020 0

pCi/L 126416001 Vogtle River Water I-131 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Cs-137 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Ba-140 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water La-140 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Be-7 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Cs-134 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water K-40 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Mn-54 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Fe-59 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Co-58 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Co-60 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Zn-65 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Zr-95 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Nb-95 1504 9/8/2020 0

pCi/L 126416002 Vogtle River Water Fe-59 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Co-58 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Co-60 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Zn-65 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Zr-95 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Nb-95 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water I-131 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Cs-134 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Cs-137 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Ba-140 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water La-140 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Be-7 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water K-40 1495 9/8/2020 0

pCi/L 126416003 Vogtle River Water Mn-54 1495 9/8/2020 0

pCi/L 126416003 Vogtle Air Filters Gross Beta GIR 9/15/2020

.01551 pCi/m3 126517002 Vogtle Air Filters Gross Beta WAY 9/15/2020

.01602 pCi/m3 126517001 Vogtle Air Filters Gross Beta HAN 9/15/2020

.01611 pCi/m3 126517007

Vogtle Air Filters Gross Beta RRD 9/15/2020

.01576 pCi/m3 126517006 Vogtle Air Filters Gross Beta SIM 9/15/2020

.0192 pCi/m3 126517003 Vogtle Air Filters Gross Beta MET 9/15/2020

.01009 pCi/m3 126517005 Vogtle Air Filters Gross Beta DIS 9/15/2020

.01589 pCi/m3 126517004 Vogtle Milk Gamma La-140 GIR 9/22/2020 0

pCi/L 126677001 Vogtle Milk Gamma Be-7 GIR 9/22/2020 0

pCi/L 126677001 Vogtle Milk Gamma K-40 GIR 9/22/2020 1324.8 pCi/L 126677001 Vogtle Milk Gamma I-131 GIR 9/22/2020 0

pCi/L 126677001 Vogtle Milk Gamma Cs-134 GIR 9/22/2020 0

pCi/L 126677001 Vogtle Milk Gamma Cs-137 GIR 9/22/2020 1.5176 pCi/L 126677001 Vogtle Milk Gamma Ba-140 GIR 9/22/2020 0

pCi/L 126677001 Vogtle Air Filters Gross Beta GIR 9/22/2020

.02128 pCi/m3 126678002 Vogtle Air Filters Gross Beta WAY 9/22/2020

.01938 pCi/m3 126678001 Vogtle Air Filters Gross Beta HAN 9/22/2020

.02289 pCi/m3 126678007 Vogtle Air Filters Gross Beta RRD 9/22/2020

.02135 pCi/m3 126678006 Vogtle Air Filters Gross Beta SIM 9/22/2020

.02121 pCi/m3 126678003 Vogtle Air Filters Gross Beta MET 9/22/2020

.02447 pCi/m3 126678005 Vogtle Air Filters Gross Beta DIS 9/22/2020

.0198 pCi/m3 126678004 Vogtle Air Qtr Comp I-131 GIR 9/29/2020 0

pCi/m3 126932002 Vogtle Air Qtr Comp Cs-134 GIR 9/29/2020 0

pCi/m3 126932002 Vogtle Air Qtr Comp Cs-137 GIR 9/29/2020 0

pCi/m3 126932002 Vogtle Air Qtr Comp Be-7 GIR 9/29/2020

.06447 pCi/m3 126932002 Vogtle Air Filters Gross Beta GIR 9/29/2020

.01913 pCi/m3 126773002 Vogtle Air Qtr Comp I-131 WAY 9/29/2020 0

pCi/m3 126932001 Vogtle Air Qtr Comp Cs-134 WAY 9/29/2020 0

pCi/m3 126932001 Vogtle Air Qtr Comp Cs-137 WAY 9/29/2020 0

pCi/m3 126932001 Vogtle Air Filters Gross Beta WAY 9/29/2020

.0195 pCi/m3 126773001 Vogtle Air Qtr Comp Be-7 WAY 9/29/2020

.06592 pCi/m3 126932001 Vogtle Vegetation Be-7 WAY 9/29/2020 688.22 pCi/Kg 126772001 Vogtle Vegetation K-40 WAY 9/29/2020 4459.1 pCi/Kg 126772001 Vogtle Vegetation Cs-137 WAY 9/29/2020 0

pCi/Kg 126772001 Vogtle Vegetation Cs-134 WAY 9/29/2020 0

pCi/Kg 126772001 Vogtle Vegetation I-131 WAY 9/29/2020 0

pCi/Kg 126772001 Vogtle Vegetation Cs-137 HAN 9/29/2020 0

pCi/Kg 126772003 Vogtle Vegetation Cs-134 HAN 9/29/2020 0

pCi/Kg 126772003 Vogtle Vegetation Be-7 HAN 9/29/2020 586.18 pCi/Kg 126772003 Vogtle Vegetation K-40 HAN 9/29/2020 4501.2 pCi/Kg 126772003 Vogtle Vegetation I-131 HAN 9/29/2020 0

pCi/Kg 126772003 Vogtle Air Qtr Comp Cs-134 HAN 9/29/2020 0

pCi/m3 126932007 Vogtle Air Qtr Comp Cs-137 HAN 9/29/2020 0

pCi/m3 126932007 Vogtle Air Filters Gross Beta HAN 9/29/2020

.02118 pCi/m3 126773007 Vogtle Air Qtr Comp Be-7 HAN 9/29/2020

.05306 pCi/m3 126932007 Vogtle Air Qtr Comp I-131 HAN 9/29/2020 0

pCi/m3 126932007 Vogtle Air Filters Gross Beta RRD 9/29/2020

.01764 pCi/m3 126773006 Vogtle Air Qtr Comp Cs-137 RRD 9/29/2020 0

pCi/m3 126932006 Vogtle Air Qtr Comp Cs-134 RRD 9/29/2020 0

pCi/m3 126932006 Vogtle Air Qtr Comp I-131 RRD 9/29/2020 0

pCi/m3 126932006 Vogtle Air Qtr Comp Be-7 RRD 9/29/2020

.0642 pCi/m3 126932006 Vogtle Air Qtr Comp I-131 SIM 9/29/2020 0

pCi/m3 126932003 Vogtle Air Qtr Comp Cs-134 SIM 9/29/2020 0

pCi/m3 126932003 Vogtle Air Qtr Comp Cs-137 SIM 9/29/2020 0

pCi/m3 126932003 Vogtle Air Qtr Comp Be-7 SIM 9/29/2020

.09847 pCi/m3 126932003 Vogtle Air Filters Gross Beta SIM 9/29/2020

.02115 pCi/m3 126773003 Vogtle Vegetation Cs-134 SIM 9/29/2020 0

pCi/Kg 126772002 Vogtle Vegetation Cs-137 SIM 9/29/2020 0

pCi/Kg 126772002 Vogtle Vegetation Be-7 SIM 9/29/2020 2125.8 pCi/Kg 126772002 Vogtle Vegetation K-40 SIM 9/29/2020 3152.7 pCi/Kg 126772002 Vogtle Vegetation I-131 SIM 9/29/2020 0

pCi/Kg 126772002 Vogtle Air Filters Gross Beta MET 9/29/2020

.01868 pCi/m3 126773005 Vogtle Air Qtr Comp Be-7 MET 9/29/2020

.06577 pCi/m3 126932005 Vogtle Air Qtr Comp Cs-137 MET 9/29/2020 0

pCi/m3 126932005 Vogtle Air Qtr Comp Cs-134 MET 9/29/2020 0

pCi/m3 126932005 Vogtle Air Qtr Comp I-131 MET 9/29/2020 0

pCi/m3 126932005 Vogtle Air Qtr Comp I-131 DIS 9/29/2020 0

pCi/m3 126932004 Vogtle Air Filters Gross Beta DIS 9/29/2020

.01733 pCi/m3 126773004 Vogtle Air Qtr Comp Be-7 DIS 9/29/2020

.08591 pCi/m3 126932004 Vogtle Air Qtr Comp Cs-137 DIS 9/29/2020 0

pCi/m3 126932004 Vogtle Air Qtr Comp Cs-134 DIS 9/29/2020 0

pCi/m3 126932004 Vogtle Air Filters Gross Beta DIS 10/5/2020

.02544 pCi/m3 126877004 Vogtle Air Filters Gross Beta MET 10/5/2020

.02752 pCi/m3 126877005 Vogtle Air Filters Gross Beta SIM 10/5/2020

.02398 pCi/m3 126877003 Vogtle Air Filters Gross Beta RRD 10/5/2020

.02969 pCi/m3 126877006 Vogtle Air Filters Gross Beta HAN 10/5/2020

.02873 pCi/m3 126877007 Vogtle Air Filters Gross Beta WAY 10/5/2020

.02144 pCi/m3 126877001 Vogtle Air Filters Gross Beta GIR 10/5/2020

.02757 pCi/m3 126877002 Vogtle Water H-3 Tritium FPUR 10/6/2020 584 pCi/L 127003006 Vogtle Water H-3 Tritium RPUR 10/6/2020 550 pCi/L 127003005 Vogtle Water H-3 Tritium FPOR 10/6/2020 517 pCi/L 127003004 Vogtle Water H-3 Tritium RAUC 10/6/2020 157 pCi/L 127003001 Vogtle Water H-3 Tritium FAUC 10/6/2020 112 pCi/L 127003002 Vogtle Water H-3 Tritium RPOR 10/6/2020 549 pCi/L 127003003 Vogtle Air Filters Gross Beta DIS 10/12/2020

.03374 pCi/m3 126960004 Vogtle Air Filters Gross Beta MET 10/12/2020

.03418 pCi/m3 126960005 Vogtle Air Filters Gross Beta SIM 10/12/2020

.03737 pCi/m3 126960003 Vogtle Air Filters Gross Beta RRD 10/12/2020

.03329 pCi/m3 126960006 Vogtle Air Filters Gross Beta HAN 10/12/2020

.03679 pCi/m3 126960007 Vogtle Air Filters Gross Beta GIR 10/12/2020

.03048 pCi/m3 126960002

Vogtle Air Filters Gross Beta WAY 10/12/2020

.02467 pCi/m3 126960001 Vogtle Milk Gamma K-40 GIR 10/13/2020 1282.8 pCi/L 126956002 Vogtle Milk Gamma Be-7 GIR 10/13/2020 0

pCi/L 126956002 Vogtle Milk Gamma I-131 GIR 10/13/2020 0

pCi/L 126956002 Vogtle Milk Gamma Cs-134 GIR 10/13/2020 0

pCi/L 126956002 Vogtle Milk Gamma Cs-137 GIR 10/13/2020 1.7146 pCi/L 126956002 Vogtle Milk Gamma Ba-140 GIR 10/13/2020 0

pCi/L 126956002 Vogtle Milk Gamma La-140 GIR 10/13/2020 0

pCi/L 126956002 Vogtle Milk Gamma I-131 Milky Way 10/13/2020 0

pCi/L 126956001 Vogtle Milk Gamma K-40 Milky Way 10/13/2020 1410.5 pCi/L 126956001 Vogtle Milk Gamma Be-7 Milky Way 10/13/2020 0

pCi/L 126956001 Vogtle Milk Gamma La-140 Milky Way 10/13/2020 0

pCi/L 126956001 Vogtle Milk Gamma Ba-140 Milky Way 10/13/2020 0

pCi/L 126956001 Vogtle Milk Gamma Cs-137 Milky Way 10/13/2020 0

pCi/L 126956001 Vogtle Milk Gamma Cs-134 Milky Way 10/13/2020 0

pCi/L 126956001 Vogtle Sediment K-40 1502 10/13/2020 9685.4 pCi/Kg 126954001 Vogtle Sediment Be-7 1502 10/13/2020 0

pCi/Kg 126954001 Vogtle Sediment Cs-137 1502 10/13/2020 0

pCi/Kg 126954001 Vogtle Sediment Cs-134 1502 10/13/2020 0

pCi/Kg 126954001 Vogtle Sediment Co-60 1502 10/13/2020 0

pCi/Kg 126954001 Vogtle Sediment Co-58 1502 10/13/2020 0

pCi/Kg 126954001 Vogtle River Water Mn-54 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Fe-59 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Co-58 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Co-60 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Zn-65 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Zr-95 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Nb-95 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water I-131 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Cs-134 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Cs-137 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Ba-140 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water La-140 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water Be-7 1512 10/13/2020 0

pCi/L 126955001 Vogtle River Water K-40 1512 10/13/2020 0

pCi/L 126955001 Vogtle Water H-3 Tritium 1512 10/13/2020 178 pCi/L 127005001 Vogtle River Water K-40 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Mn-54 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Fe-59 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Co-58 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Co-60 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Zn-65 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Zr-95 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Nb-95 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water I-131 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Cs-134 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Cs-137 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water Ba-140 1504 10/13/2020 0

pCi/L 126955002 Vogtle River Water La-140 1504 10/13/2020 0

pCi/L 126955002 Vogtle Water H-3 Tritium 1504 10/13/2020 1500 pCi/L 127005002 Vogtle River Water Be-7 1504 10/13/2020 0

pCi/L 126955002 Vogtle Sediment Be-7 1533 10/13/2020 2043.4 pCi/Kg 126954002 Vogtle Sediment K-40 1533 10/13/2020 14374 pCi/Kg 126954002 Vogtle Sediment Co-58 1533 10/13/2020 55.519 pCi/Kg 126954002 Vogtle Sediment Co-60 1533 10/13/2020 0

pCi/Kg 126954002 Vogtle Sediment Cs-137 1533 10/13/2020 120.36 pCi/Kg 126954002 Vogtle Sediment Cs-134 1533 10/13/2020 0

pCi/Kg 126954002 Vogtle Water H-3 Tritium 1495 10/13/2020 634 pCi/L 127005003 Vogtle River Water Ba-140 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water La-140 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Be-7 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water K-40 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Mn-54 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Fe-59 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Co-58 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Co-60 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Zn-65 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Zr-95 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Nb-95 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water I-131 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Cs-134 1495 10/13/2020 0

pCi/L 126955003 Vogtle River Water Cs-137 1495 10/13/2020 0

pCi/L 126955003 Vogtle Air Filters Gross Beta GIR 10/20/2020

.03013 pCi/m3 127027002 Vogtle Air Filters Gross Beta WAY 10/20/2020

.03041 pCi/m3 127027001 Vogtle Air Filters Gross Beta HAN 10/20/2020

.03084 pCi/m3 127027007 Vogtle Air Filters Gross Beta RRD 10/20/2020

.02606 pCi/m3 127027006 Vogtle Air Filters Gross Beta SIM 10/20/2020

.02743 pCi/m3 127027003 Vogtle Air Filters Gross Beta MET 10/20/2020

.03152 pCi/m3 127027005 Vogtle Air Filters Gross Beta DIS 10/20/2020

.02789 pCi/m3 127027004 Vogtle Milk Gamma K-40 GIR 10/27/2020 1293.4 pCi/L 127081002 Vogtle Milk Gamma I-131 GIR 10/27/2020 0

pCi/L 127081002 Vogtle Milk Gamma Cs-134 GIR 10/27/2020 0

pCi/L 127081002 Vogtle Milk Gamma Cs-137 GIR 10/27/2020 0

pCi/L 127081002 Vogtle Milk Gamma Ba-140 GIR 10/27/2020 0

pCi/L 127081002 Vogtle Milk Gamma La-140 GIR 10/27/2020 0

pCi/L 127081002 Vogtle Milk Gamma Be-7 GIR 10/27/2020 0

pCi/L 127081002 Vogtle Air Filters Gross Beta GIR 10/27/2020

.01502 pCi/m3 127084002

Vogtle Milk Gamma K-40 Milky Way 10/27/2020 1408.3 pCi/L 127081001 Vogtle Milk Gamma Be-7 Milky Way 10/27/2020 0

pCi/L 127081001 Vogtle Milk Gamma La-140 Milky Way 10/27/2020 0

pCi/L 127081001 Vogtle Milk Gamma Ba-140 Milky Way 10/27/2020 0

pCi/L 127081001 Vogtle Milk Gamma Cs-137 Milky Way 10/27/2020 0

pCi/L 127081001 Vogtle Milk Gamma Cs-134 Milky Way 10/27/2020 0

pCi/L 127081001 Vogtle Milk Gamma I-131 Milky Way 10/27/2020 0

pCi/L 127081001 Vogtle Vegetation Cs-134 WAY 10/27/2020 0

pCi/Kg 127086001 Vogtle Vegetation Cs-137 WAY 10/27/2020 0

pCi/Kg 127086001 Vogtle Vegetation Be-7 WAY 10/27/2020 843.12 pCi/Kg 127086001 Vogtle Vegetation K-40 WAY 10/27/2020 3005.2 pCi/Kg 127086001 Vogtle Vegetation I-131 WAY 10/27/2020 0

pCi/Kg 127086001 Vogtle Air Filters Gross Beta WAY 10/27/2020

.01176 pCi/m3 127084001 Vogtle Vegetation I-131 HAN 10/27/2020 0

pCi/Kg 127086003 Vogtle Vegetation Cs-134 HAN 10/27/2020 0

pCi/Kg 127086003 Vogtle Vegetation Cs-137 HAN 10/27/2020 0

pCi/Kg 127086003 Vogtle Vegetation Be-7 HAN 10/27/2020 1300.4 pCi/Kg 127086003 Vogtle Vegetation K-40 HAN 10/27/2020 3320.8 pCi/Kg 127086003 Vogtle Air Filters Gross Beta HAN 10/27/2020

.01753 pCi/m3 127084007 Vogtle Air Filters Gross Beta RRD 10/27/2020

.01977 pCi/m3 127084006 Vogtle Air Filters Gross Beta SIM 10/27/2020

.01252 pCi/m3 127084003 Vogtle Vegetation Cs-137 SIM 10/27/2020 0

pCi/Kg 127086002 Vogtle Vegetation Be-7 SIM 10/27/2020 1510.8 pCi/Kg 127086002 Vogtle Vegetation I-131 SIM 10/27/2020 0

pCi/Kg 127086002 Vogtle Vegetation Cs-134 SIM 10/27/2020 0

pCi/Kg 127086002 Vogtle Vegetation K-40 SIM 10/27/2020 3938 pCi/Kg 127086002 Vogtle Air Filters Gross Beta MET 10/27/2020

.01247 pCi/m3 127084005 Vogtle Air Filters Gross Beta DIS 10/27/2020

.01849 pCi/m3 127084004 Vogtle Fish Cs-137 1535 Bass 10/27/2020 28.228 pCi/Kg 127078003 Vogtle Fish Mn-54 1535 Bass 10/27/2020 0

pCi/Kg 127078003 Vogtle Fish Zn-65 1535 Bass 10/27/2020 0

pCi/Kg 127078003 Vogtle Fish Co-60 1535 Bass 10/27/2020 0

pCi/Kg 127078003 Vogtle Fish Co-58 1535 Bass 10/27/2020 0

pCi/Kg 127078003 Vogtle Fish Fe-59 1535 Bass 10/27/2020 0

pCi/Kg 127078003 Vogtle Fish K-40 1535 Bass 10/27/2020 3496.7 pCi/Kg 127078003 Vogtle Fish Be-7 1535 Bass 10/27/2020 0

pCi/Kg 127078003 Vogtle Fish Cs-134 1535 Bass 10/27/2020 0

pCi/Kg 127078003 Vogtle Fish Mn-54 1535 Bluegill 10/27/2020 0

pCi/Kg 127078004 Vogtle Fish Fe-59 1535 Bluegill 10/27/2020 0

pCi/Kg 127078004 Vogtle Fish Co-58 1535 Bluegill 10/27/2020 0

pCi/Kg 127078004 Vogtle Fish Co-60 1535 Bluegill 10/27/2020 0

pCi/Kg 127078004 Vogtle Fish Zn-65 1535 Bluegill 10/27/2020 0

pCi/Kg 127078004 Vogtle Fish Cs-134 1535 Bluegill 10/27/2020 0

pCi/Kg 127078004 Vogtle Fish Cs-137 1535 Bluegill 10/27/2020 0

pCi/Kg 127078004 Vogtle Fish Be-7 1535 Bluegill 10/27/2020 0

pCi/Kg 127078004 Vogtle Fish K-40 1535 Bluegill 10/27/2020 3501.9 pCi/Kg 127078004 Vogtle Fish Mn-54 1535 Carp 10/27/2020 0

pCi/Kg 127078001 Vogtle Fish Fe-59 1535 Carp 10/27/2020 0

pCi/Kg 127078001 Vogtle Fish Co-58 1535 Carp 10/27/2020 0

pCi/Kg 127078001 Vogtle Fish Co-60 1535 Carp 10/27/2020 0

pCi/Kg 127078001 Vogtle Fish Zn-65 1535 Carp 10/27/2020 0

pCi/Kg 127078001 Vogtle Fish Cs-134 1535 Carp 10/27/2020 0

pCi/Kg 127078001 Vogtle Fish Cs-137 1535 Carp 10/27/2020 0

pCi/Kg 127078001 Vogtle Fish Be-7 1535 Carp 10/27/2020 0

pCi/Kg 127078001 Vogtle Fish K-40 1535 Carp 10/27/2020 3238.6 pCi/Kg 127078001 Vogtle Fish Co-60 1535 Sucker 10/27/2020 0

pCi/Kg 127078002 Vogtle Fish Cs-137 1535 Sucker 10/27/2020 0

pCi/Kg 127078002 Vogtle Fish Cs-134 1535 Sucker 10/27/2020 0

pCi/Kg 127078002 Vogtle Fish K-40 1535 Sucker 10/27/2020 3368.1 pCi/Kg 127078002 Vogtle Fish Be-7 1535 Sucker 10/27/2020 0

pCi/Kg 127078002 Vogtle Fish Co-58 1535 Sucker 10/27/2020 0

pCi/Kg 127078002 Vogtle Fish Fe-59 1535 Sucker 10/27/2020 0

pCi/Kg 127078002 Vogtle Fish Mn-54 1535 Sucker 10/27/2020 0

pCi/Kg 127078002 Vogtle Fish Zn-65 1535 Sucker 10/27/2020 0

pCi/Kg 127078002 Vogtle Fish Co-60 149-146 Catfish 10/27/2020 0

pCi/Kg 127078008 Vogtle Fish Cs-134 149-146 Catfish 10/27/2020 0

pCi/Kg 127078008 Vogtle Fish Cs-137 149-146 Catfish 10/27/2020 37.648 pCi/Kg 127078008 Vogtle Fish Be-7 149-146 Catfish 10/27/2020 0

pCi/Kg 127078008 Vogtle Fish K-40 149-146 Catfish 10/27/2020 2934.2 pCi/Kg 127078008 Vogtle Fish Zn-65 149-146 Catfish 10/27/2020 0

pCi/Kg 127078008 Vogtle Fish Mn-54 149-146 Catfish 10/27/2020 0

pCi/Kg 127078008 Vogtle Fish Fe-59 149-146 Catfish 10/27/2020 0

pCi/Kg 127078008 Vogtle Fish Co-58 149-146 Catfish 10/27/2020 0

pCi/Kg 127078008 Vogtle Fish Fe-59 149-146 Crappie 10/27/2020 0

pCi/Kg 127078006 Vogtle Fish Co-58 149-146 Crappie 10/27/2020 0

pCi/Kg 127078006 Vogtle Fish Co-60 149-146 Crappie 10/27/2020 0

pCi/Kg 127078006 Vogtle Fish Zn-65 149-146 Crappie 10/27/2020 0

pCi/Kg 127078006 Vogtle Fish Cs-134 149-146 Crappie 10/27/2020 0

pCi/Kg 127078006 Vogtle Fish Cs-137 149-146 Crappie 10/27/2020 0

pCi/Kg 127078006 Vogtle Fish Be-7 149-146 Crappie 10/27/2020 0

pCi/Kg 127078006 Vogtle Fish K-40 149-146 Crappie 10/27/2020 3107.9 pCi/Kg 127078006 Vogtle Fish Mn-54 149-146 Crappie 10/27/2020 0

pCi/Kg 127078006 Vogtle Fish Fe-59 149-146 Mullet 10/27/2020 0

pCi/Kg 127078007 Vogtle Fish Co-58 149-146 Mullet 10/27/2020 0

pCi/Kg 127078007 Vogtle Fish Co-60 149-146 Mullet 10/27/2020 0

pCi/Kg 127078007 Vogtle Fish Zn-65 149-146 Mullet 10/27/2020 0

pCi/Kg 127078007 Vogtle Fish Cs-134 149-146 Mullet 10/27/2020 0

pCi/Kg 127078007

Vogtle Fish Cs-137 149-146 Mullet 10/27/2020 0

pCi/Kg 127078007 Vogtle Fish Be-7 149-146 Mullet 10/27/2020 0

pCi/Kg 127078007 Vogtle Fish K-40 149-146 Mullet 10/27/2020 3286.1 pCi/Kg 127078007 Vogtle Fish Mn-54 149-146 Mullet 10/27/2020 0

pCi/Kg 127078007 Vogtle Fish Fe-59 149-146 Sucker 10/27/2020 0

pCi/Kg 127078005 Vogtle Fish Co-58 149-146 Sucker 10/27/2020 0

pCi/Kg 127078005 Vogtle Fish Co-60 149-146 Sucker 10/27/2020 0

pCi/Kg 127078005 Vogtle Fish Zn-65 149-146 Sucker 10/27/2020 0

pCi/Kg 127078005 Vogtle Fish Cs-134 149-146 Sucker 10/27/2020 0

pCi/Kg 127078005 Vogtle Fish Cs-137 149-146 Sucker 10/27/2020 0

pCi/Kg 127078005 Vogtle Fish Be-7 149-146 Sucker 10/27/2020 0

pCi/Kg 127078005 Vogtle Fish K-40 149-146 Sucker 10/27/2020 3256.1 pCi/Kg 127078005 Vogtle Fish Mn-54 149-146 Sucker 10/27/2020 0

pCi/Kg 127078005 Vogtle Air Filters Gross Beta DIS 11/2/2020

.02153 pCi/m3 127142004 Vogtle Air Filters Gross Beta MET 11/2/2020

.02364 pCi/m3 127142005 Vogtle Air Filters Gross Beta SIM 11/2/2020

.02126 pCi/m3 127142003 Vogtle Air Filters Gross Beta RRD 11/2/2020

.02222 pCi/m3 127142006 Vogtle Air Filters Gross Beta HAN 11/2/2020

.02119 pCi/m3 127142007 Vogtle Air Filters Gross Beta GIR 11/2/2020

.02416 pCi/m3 127142002 Vogtle Air Filters Gross Beta WAY 11/2/2020

.02045 pCi/m3 127142001 Vogtle Milk Gamma Cs-134 GIR 11/10/2020 0

pCi/L 127223002 Vogtle Milk Gamma I-131 GIR 11/10/2020 0

pCi/L 127223002 Vogtle Milk Gamma K-40 GIR 11/10/2020 1228.2 pCi/L 127223002 Vogtle Milk Gamma Be-7 GIR 11/10/2020 0

pCi/L 127223002 Vogtle Milk Gamma La-140 GIR 11/10/2020 0

pCi/L 127223002 Vogtle Milk Gamma Ba-140 GIR 11/10/2020 0

pCi/L 127223002 Vogtle Milk Gamma Cs-137 GIR 11/10/2020 0

pCi/L 127223002 Vogtle Air Filters Gross Beta GIR 11/10/2020

.02077 pCi/m3 127224002 Vogtle Air Filters Gross Beta WAY 11/10/2020

.0202 pCi/m3 127224001 Vogtle Milk Gamma K-40 Milky Way 11/10/2020 1507.6 pCi/L 127223001 Vogtle Milk Gamma Be-7 Milky Way 11/10/2020 0

pCi/L 127223001 Vogtle Milk Gamma La-140 Milky Way 11/10/2020 0

pCi/L 127223001 Vogtle Milk Gamma Ba-140 Milky Way 11/10/2020 0

pCi/L 127223001 Vogtle Milk Gamma Cs-137 Milky Way 11/10/2020 0

pCi/L 127223001 Vogtle Milk Gamma Cs-134 Milky Way 11/10/2020 0

pCi/L 127223001 Vogtle Milk Gamma I-131 Milky Way 11/10/2020 0

pCi/L 127223001 Vogtle Air Filters Gross Beta HAN 11/10/2020

.02033 pCi/m3 127224007 Vogtle Air Filters Gross Beta RRD 11/10/2020

.01973 pCi/m3 127224006 Vogtle Air Filters Gross Beta SIM 11/10/2020

.02267 pCi/m3 127224003 Vogtle Air Filters Gross Beta MET 11/10/2020

.02057 pCi/m3 127224005 Vogtle Air Filters Gross Beta DIS 11/10/2020

.0195 pCi/m3 127224004 Vogtle Air Filters Gross Beta GIR 11/17/2020

.01763 pCi/m3 127348002 Vogtle Air Filters Gross Beta WAY 11/17/2020

.01742 pCi/m3 127348001 Vogtle Air Filters Gross Beta HAN 11/17/2020

.01867 pCi/m3 127348007 Vogtle Air Filters Gross Beta RRD 11/17/2020

.0163 pCi/m3 127348006 Vogtle Air Filters Gross Beta SIM 11/17/2020

.01932 pCi/m3 127348003 Vogtle Air Filters Gross Beta MET 11/17/2020

.02496 pCi/m3 127348005 Vogtle Air Filters Gross Beta DIS 11/17/2020

.01989 pCi/m3 127348004 Vogtle River Water Co-58 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Co-60 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Zn-65 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Zr-95 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Nb-95 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water I-131 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Cs-134 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Cs-137 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Ba-140 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water La-140 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Be-7 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water K-40 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Mn-54 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Fe-59 1512 11/18/2020 0

pCi/L 127342001 Vogtle River Water Cs-137 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Ba-140 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Mn-54 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Fe-59 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Co-58 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Co-60 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Zn-65 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Zr-95 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Nb-95 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water I-131 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Cs-134 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water La-140 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Be-7 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water K-40 1504 11/18/2020 0

pCi/L 127342002 Vogtle River Water Co-60 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water Zn-65 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water Zr-95 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water Nb-95 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water I-131 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water Cs-134 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water Cs-137 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water Ba-140 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water La-140 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water Be-7 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water K-40 1495 11/18/2020 80.187 pCi/L 127342003

Vogtle River Water Mn-54 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water Fe-59 1495 11/18/2020 0

pCi/L 127342003 Vogtle River Water Co-58 1495 11/18/2020 0

pCi/L 127342003 Vogtle Milk Gamma Cs-137 GIR 11/24/2020 0

pCi/L 127391002 Vogtle Milk Gamma Ba-140 GIR 11/24/2020 0

pCi/L 127391002 Vogtle Milk Gamma La-140 GIR 11/24/2020 0

pCi/L 127391002 Vogtle Milk Gamma Be-7 GIR 11/24/2020 0

pCi/L 127391002 Vogtle Milk Gamma K-40 GIR 11/24/2020 1335.1 pCi/L 127391002 Vogtle Milk Gamma I-131 GIR 11/24/2020 0

pCi/L 127391002 Vogtle Milk Gamma Cs-134 GIR 11/24/2020 0

pCi/L 127391002 Vogtle Air Filters Gross Beta GIR 11/24/2020

.01966 pCi/m3 127398002 Vogtle Air Filters Gross Beta WAY 11/24/2020

.02037 pCi/m3 127398001 Vogtle Vegetation Be-7 WAY 11/24/2020 0

pCi/Kg 127397001 Vogtle Vegetation K-40 WAY 11/24/2020 5707.7 pCi/Kg 127397001 Vogtle Vegetation Cs-137 WAY 11/24/2020 0

pCi/Kg 127397001 Vogtle Vegetation I-131 WAY 11/24/2020 0

pCi/Kg 127397001 Vogtle Vegetation Cs-134 WAY 11/24/2020 0

pCi/Kg 127397001 Vogtle Milk Gamma Cs-137 Milky Way 11/24/2020 1.2684 pCi/L 127391001 Vogtle Milk Gamma Cs-134 Milky Way 11/24/2020 0

pCi/L 127391001 Vogtle Milk Gamma I-131 Milky Way 11/24/2020 0

pCi/L 127391001 Vogtle Milk Gamma K-40 Milky Way 11/24/2020 1454.3 pCi/L 127391001 Vogtle Milk Gamma Be-7 Milky Way 11/24/2020 0

pCi/L 127391001 Vogtle Milk Gamma La-140 Milky Way 11/24/2020 0

pCi/L 127391001 Vogtle Milk Gamma Ba-140 Milky Way 11/24/2020 0

pCi/L 127391001 Vogtle Vegetation Be-7 HAN 11/24/2020 851.13 pCi/Kg 127397003 Vogtle Vegetation K-40 HAN 11/24/2020 4019.5 pCi/Kg 127397003 Vogtle Vegetation Cs-137 HAN 11/24/2020 0

pCi/Kg 127397003 Vogtle Vegetation Cs-134 HAN 11/24/2020 0

pCi/Kg 127397003 Vogtle Vegetation I-131 HAN 11/24/2020 0

pCi/Kg 127397003 Vogtle Air Filters Gross Beta HAN 11/24/2020

.02384 pCi/m3 127398007 Vogtle Air Filters Gross Beta RRD 11/24/2020

.02393 pCi/m3 127398006 Vogtle Air Filters Gross Beta SIM 11/24/2020

.01994 pCi/m3 127398003 Vogtle Vegetation Be-7 SIM 11/24/2020 0

pCi/Kg 127397002 Vogtle Vegetation K-40 SIM 11/24/2020 5308.9 pCi/Kg 127397002 Vogtle Vegetation Cs-137 SIM 11/24/2020 0

pCi/Kg 127397002 Vogtle Vegetation I-131 SIM 11/24/2020 0

pCi/Kg 127397002 Vogtle Vegetation Cs-134 SIM 11/24/2020 0

pCi/Kg 127397002 Vogtle Air Filters Gross Beta MET 11/24/2020

.0199 pCi/m3 127398005 Vogtle Air Filters Gross Beta DIS 11/24/2020

.02239 pCi/m3 127398004 Vogtle Air Filters Gross Beta GIR 11/30/2020

.03317 pCi/m3 127479002 Vogtle Air Filters Gross Beta WAY 11/30/2020

.03245 pCi/m3 127479001 Vogtle Air Filters Gross Beta HAN 11/30/2020

.03841 pCi/m3 127479007 Vogtle Air Filters Gross Beta RRD 11/30/2020

.03558 pCi/m3 127479006 Vogtle Air Filters Gross Beta SIM 11/30/2020

.03558 pCi/m3 127479003 Vogtle Air Filters Gross Beta MET 11/30/2020

.0321 pCi/m3 127479005 Vogtle Air Filters Gross Beta DIS 11/30/2020

.03224 pCi/m3 127479004 Vogtle Milk Gamma I-131 GIR 12/8/2020 0

pCi/L 127623002 Vogtle Milk Gamma Cs-134 GIR 12/8/2020 0

pCi/L 127623002 Vogtle Milk Gamma Cs-137 GIR 12/8/2020 0

pCi/L 127623002 Vogtle Milk Gamma Ba-140 GIR 12/8/2020 0

pCi/L 127623002 Vogtle Milk Gamma La-140 GIR 12/8/2020 0

pCi/L 127623002 Vogtle Milk Gamma Be-7 GIR 12/8/2020 0

pCi/L 127623002 Vogtle Milk Gamma K-40 GIR 12/8/2020 1383.3 pCi/L 127623002 Vogtle Air Filters Gross Beta GIR 12/8/2020

.02961 pCi/m3 127586002 Vogtle Air Filters Gross Beta WAY 12/8/2020

.0272 pCi/m3 127586001 Vogtle Milk Gamma I-131 Milky Way 12/8/2020 0

pCi/L 127623001 Vogtle Milk Gamma Cs-134 Milky Way 12/8/2020 0

pCi/L 127623001 Vogtle Milk Gamma Cs-137 Milky Way 12/8/2020 0

pCi/L 127623001 Vogtle Milk Gamma Ba-140 Milky Way 12/8/2020 0

pCi/L 127623001 Vogtle Milk Gamma La-140 Milky Way 12/8/2020 0

pCi/L 127623001 Vogtle Milk Gamma Be-7 Milky Way 12/8/2020 0

pCi/L 127623001 Vogtle Milk Gamma K-40 Milky Way 12/8/2020 1445 pCi/L 127623001 Vogtle Air Filters Gross Beta HAN 12/8/2020

.03589 pCi/m3 127586007 Vogtle Air Filters Gross Beta RRD 12/8/2020

.0298 pCi/m3 127586006 Vogtle Air Filters Gross Beta MET 12/8/2020

.02927 pCi/m3 127586005 Vogtle Air Filters Gross Beta DIS 12/8/2020

.03036 pCi/m3 127586004 Vogtle River Water Cs-137 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Ba-140 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water La-140 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Be-7 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water K-40 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Mn-54 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Fe-59 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Co-58 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Co-60 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Zn-65 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Zr-95 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Nb-95 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water I-131 1512 12/8/2020 0

pCi/L 127624001 Vogtle Water H-3 Tritium 1512 12/8/2020 98.5 pCi/L 128371003 Vogtle River Water Cs-134 1512 12/8/2020 0

pCi/L 127624001 Vogtle River Water Be-7 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water K-40 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Mn-54 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Fe-59 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Co-58 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Co-60 1495 12/8/2020 0

pCi/L 127624003

Vogtle River Water Zn-65 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Zr-95 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Nb-95 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water I-131 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Cs-134 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Cs-137 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Ba-140 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water La-140 1495 12/8/2020 0

pCi/L 127624003 Vogtle River Water Fe-59 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Co-58 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Co-60 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Zn-65 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Zr-95 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Nb-95 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water I-131 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Cs-134 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Cs-137 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Ba-140 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water La-140 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Be-7 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water K-40 1504 12/8/2020 0

pCi/L 127624002 Vogtle River Water Mn-54 1504 12/8/2020 0

pCi/L 127624002 Vogtle Air Filters Gross Beta WAY 12/15/2020

.04143 pCi/m3 127712001 Vogtle Air Filters Gross Beta GIR 12/15/2020

.03885 pCi/m3 127712002 Vogtle Air Filters Gross Beta SIM 12/15/2020

.05044 pCi/m3 127712003 Vogtle Air Filters Gross Beta HAN 12/15/2020

.046 pCi/m3 127712007 Vogtle Air Filters Gross Beta RRD 12/15/2020

.0403 pCi/m3 127712006 Vogtle Air Filters Gross Beta MET 12/15/2020

.04839 pCi/m3 127712005 Vogtle Air Filters Gross Beta DIS 12/15/2020

.0402 pCi/m3 127712004 Vogtle Milk Gamma Be-7 Milky Way 12/22/2020 0

pCi/L 127788001 Vogtle Milk Gamma La-140 Milky Way 12/22/2020 0

pCi/L 127788001 Vogtle Milk Gamma Ba-140 Milky Way 12/22/2020 0

pCi/L 127788001 Vogtle Milk Gamma Cs-137 Milky Way 12/22/2020 0

pCi/L 127788001 Vogtle Milk Gamma Cs-134 Milky Way 12/22/2020 0

pCi/L 127788001 Vogtle Milk Gamma I-131 Milky Way 12/22/2020 0

pCi/L 127788001 Vogtle Milk Gamma K-40 Milky Way 12/22/2020 1466.4 pCi/L 127788001 Vogtle Air Filters Gross Beta WAY 12/22/2020

.02499 pCi/m3 127794001 Vogtle Milk Gamma I-131 GIR 12/22/2020 0

pCi/L 127788002 Vogtle Milk Gamma K-40 GIR 12/22/2020 1395 pCi/L 127788002 Vogtle Milk Gamma Be-7 GIR 12/22/2020 0

pCi/L 127788002 Vogtle Milk Gamma Cs-134 GIR 12/22/2020 0

pCi/L 127788002 Vogtle Milk Gamma Cs-137 GIR 12/22/2020 0

pCi/L 127788002 Vogtle Milk Gamma Ba-140 GIR 12/22/2020 0

pCi/L 127788002 Vogtle Milk Gamma La-140 GIR 12/22/2020 0

pCi/L 127788002 Vogtle Air Filters Gross Beta GIR 12/22/2020

.02564 pCi/m3 127794002 Vogtle Air Filters Gross Beta SIM 12/22/2020

.0252 pCi/m3 127794003 Vogtle Air Filters Gross Beta HAN 12/22/2020

.02804 pCi/m3 127794007 Vogtle Air Filters Gross Beta RRD 12/22/2020

.03098 pCi/m3 127794006 Vogtle Air Filters Gross Beta MET 12/22/2020

.02743 pCi/m3 127794005 Vogtle Air Filters Gross Beta DIS 12/22/2020

.0248 pCi/m3 127794004 Vogtle Milk Gamma La-140 GIR 12/28/2020 0

pCi/L 127823002 Vogtle Milk Gamma Ba-140 GIR 12/28/2020 0

pCi/L 127823002 Vogtle Milk Gamma Cs-137 GIR 12/28/2020 0

pCi/L 127823002 Vogtle Milk Gamma Cs-134 GIR 12/28/2020 0

pCi/L 127823002 Vogtle Milk Gamma I-131 GIR 12/28/2020 0

pCi/L 127823002 Vogtle Milk Gamma K-40 GIR 12/28/2020 1425.5 pCi/L 127823002 Vogtle Milk Gamma Be-7 GIR 12/28/2020 0

pCi/L 127823002 Vogtle Air Filters Gross Beta GIR 12/28/2020

.02634 pCi/m3 127854002 Vogtle Air Qtr Comp Be-7 GIR 12/28/2020

.07042 pCi/m3 128019002 Vogtle Air Qtr Comp Cs-137 GIR 12/28/2020 0

pCi/m3 128019002 Vogtle Air Qtr Comp Cs-134 GIR 12/28/2020 0

pCi/m3 128019002 Vogtle Air Qtr Comp I-131 GIR 12/28/2020 0

pCi/m3 128019002 Vogtle Air Qtr Comp I-131 WAY 12/28/2020 0

pCi/m3 128019001 Vogtle Air Filters Gross Beta WAY 12/28/2020

.02252 pCi/m3 127854001 Vogtle Air Qtr Comp Be-7 WAY 12/28/2020

.09443 pCi/m3 128019001 Vogtle Air Qtr Comp Cs-137 WAY 12/28/2020 0

pCi/m3 128019001 Vogtle Air Qtr Comp Cs-134 WAY 12/28/2020 0

pCi/m3 128019001 Vogtle Milk Gamma Cs-134 Milky Way 12/28/2020 0

pCi/L 127823001 Vogtle Milk Gamma I-131 Milky Way 12/28/2020 0

pCi/L 127823001 Vogtle Milk Gamma K-40 Milky Way 12/28/2020 1487.1 pCi/L 127823001 Vogtle Milk Gamma Be-7 Milky Way 12/28/2020 0

pCi/L 127823001 Vogtle Milk Gamma La-140 Milky Way 12/28/2020 0

pCi/L 127823001 Vogtle Milk Gamma Ba-140 Milky Way 12/28/2020 0

pCi/L 127823001 Vogtle Milk Gamma Cs-137 Milky Way 12/28/2020 0

pCi/L 127823001 Vogtle Air Qtr Comp I-131 HAN 12/28/2020 0

pCi/m3 128019007 Vogtle Air Filters Gross Beta HAN 12/28/2020

.02677 pCi/m3 127854007 Vogtle Air Qtr Comp Be-7 HAN 12/28/2020

.07472 pCi/m3 128019007 Vogtle Air Qtr Comp Cs-137 HAN 12/28/2020 0

pCi/m3 128019007 Vogtle Air Qtr Comp Cs-134 HAN 12/28/2020 0

pCi/m3 128019007 Vogtle Air Qtr Comp Cs-137 RRD 12/28/2020 0

pCi/m3 128019006 Vogtle Air Qtr Comp I-131 RRD 12/28/2020 0

pCi/m3 128019006 Vogtle Air Filters Gross Beta RRD 12/28/2020

.02628 pCi/m3 127854006 Vogtle Air Qtr Comp Cs-134 RRD 12/28/2020 0

pCi/m3 128019006 Vogtle Air Qtr Comp Be-7 RRD 12/28/2020

.08542 pCi/m3 128019006 Vogtle Air Filters Gross Beta SIM 12/28/2020

.02751 pCi/m3 127854003 Vogtle Air Qtr Comp Cs-134 SIM 12/28/2020 0

pCi/m3 128019003 Vogtle Air Qtr Comp I-131 SIM 12/28/2020 0

pCi/m3 128019003

Vogtle Air Qtr Comp Be-7 SIM 12/28/2020

.09453 pCi/m3 128019003 Vogtle Air Qtr Comp Cs-137 SIM 12/28/2020 0

pCi/m3 128019003 Vogtle Air Filters Gross Beta MET 12/28/2020

.02577 pCi/m3 127854005 Vogtle Air Qtr Comp Be-7 MET 12/28/2020

.0833 pCi/m3 128019005 Vogtle Air Qtr Comp Cs-137 MET 12/28/2020 0

pCi/m3 128019005 Vogtle Air Qtr Comp Cs-134 MET 12/28/2020 0

pCi/m3 128019005 Vogtle Air Qtr Comp I-131 MET 12/28/2020 0

pCi/m3 128019005 Vogtle Air Qtr Comp I-131 DIS 12/28/2020 0

pCi/m3 128019004 Vogtle Air Qtr Comp Cs-137 DIS 12/28/2020 0

pCi/m3 128019004 Vogtle Air Qtr Comp Cs-134 DIS 12/28/2020 0

pCi/m3 128019004 Vogtle Air Filters Gross Beta DIS 12/28/2020

.02794 pCi/m3 127854004 Vogtle Air Qtr Comp Be-7 DIS 12/28/2020

.05768 pCi/m3 128019004

NL-21-0474, Annual Radiological Environmental Operating Reports for 2020

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NL-21-0474, Annual Radiological Environmental Operating Reports for 2020

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Enclosures:

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