Text

Annual Radiological Environmental Operating Reports for 2021
	ML22132A175
Person / Time
Site:	Hatch, Vogtle, Farley
Issue date:	05/10/2022
From:	Gayheart C; Southern Nuclear Operating Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	NL-22-0344
	Download: ML22132A175 (187)
	v • d • e

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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 2021 Hatch Annual Radiological Environmental Operating Report for 2021

EDWIN I. HATCH NUCLEAR PLANT 2021 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

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PLANT HATCH 2021 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............................................................................................................... 21 3.6 Interlaboratory Comparison Program.................................................................. 22 4

Survey Summaries.................................................................................................... 25 4.1 Land Use Census................................................................................................... 25 4.2 Altamaha River Survey.......................................................................................... 25 4.3 Meteorological Report Summary......................................................................... 26 5

Conclusions.............................................................................................................. 27 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....................................................................... 23 Table 4-1. Land Use Census Results............................................................................................. 25 Figures Figure 3-1. Average Weekly Gross Beta Air Concentration.......................................................... 15 Figure 3-2. Average Quarterly Exposure from Direct Radiation................................................... 18 Figure 3-3. 2021 Average Exposure from Direct Radiation.......................................................... 18 Figure 3-4. 2021 Biological Media Average Cs-137 Concentrations............................................. 20 Figure 3-5. Average Annual Tritium Concentrations in River Water............................................ 21

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report ii l P a g e Appendix A - Maps A REMP Stations in Plant Vicinity A REMP Stations within 10 Miles Appendix B - Errata Appendix C - Data

PLANT HATCH 2021 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 2021 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 2021 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.

A description of the REMP is provided in Section 2 of this report

Section 3 provides a summary of the results, an assessment of any radiological impacts to the environment, and the results from the interlaboratory comparison

A summary of the land use census and the river survey are included in Section 4

Conclusions are included in Section 5

PLANT HATCH 2021 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 2021 report. Analytical results for each of the analyzed REMP sampling points are provided in Appendix C.

Beginning in October 2017 and continuing through 2021, 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 Alabama Power Company and analyzed by the Georgia Power Company Environmental Lab (GPCEL) in Atlanta, Georgia. The GPCEL analyzed all REMP samples.

PLANT HATCH 2021 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.

Shoreline Sediment Two Semiannually Gamma isotopic analysis2/Semiannually Ingestion Milk5 One Bimonthly Gamma isotopic analysis2,7/Bimonthly

PLANT HATCH 2021 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 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 2021 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 2021 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 2021 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, 1553 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 2021, 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.

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 station, that can be determined statistically at the 99% Confidence Level (CL). A difference

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report 8 l P a g e 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 2021 results were compared with previous results, including those obtained during pre-operation. No data points were excluded for violating Chauvenets Criterion.

PLANT HATCH 2021 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 311 10 22.1 4.3 to 48.4 (211/211)

Inner Ring SE 1.2 mi.

(Indicator) 23 11.4 to 39.4 (51/51) 21.6 9.4 to 39.4 (104/104)

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-131 310 70 NDM NDM NDM NDM Direct Radiation (mR/91 days)

Gamma Dose 148 12.3 8.8 to 22.3 (64/64)

Inner Ring NW 1.1 mi.

19.4 17.3 to 22.3 (4/4) 12.2 8.8 to 19.3 (72/72) 11.6 9.7 to 14.3 (12/12)

Milk (pCi/l)

Gamma Isotopic 26 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 34 Be-7 I-131 60 NDM NDM Cs-134 60 NDM NDM

PLANT HATCH 2021 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 12.9 0 to 60.5 (7/22)

Inner Ring ESE 1.1 mi.

Indicator 60.5 0 to 60.5 (1/12) 52.8 0 to 52.8 (1/12)

River Water (pCi/l)

Gamma Isotopic 24 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 6

3000 (e) 151.4 0 to 356 (2/3)

Downstream E ~ 3.0 RM from intake Indicator 151.4 0 to 356 (2/3) 115 0 to 115 (1/3)

Fish (pCi/kg-wet)

Gamma Isotopic 6

Be-7 655(d)

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

PLANT HATCH 2021 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-58 130 NDM NDM 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 2021 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 2021 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 02/15/21-02/21/22 Grass plot 106 No sample collected Sample station did not have grass available due to weather conditions.

Annual ryegrass had been planted.

05/10/21-05/17/21 Station 112 Partial sample collected.

Station lost power during sample period. 55 hours6.365741e-4 days 0.0153 hours 9.093915e-5 weeks 2.09275e-5 months of sample was collected.

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

05/31/21-06/07/21 Station 112 Partial sample collected.

Station lost power during sample period. 108 hours0.00125 days 0.03 hours 1.785714e-4 weeks 4.1094e-5 months of sample was collected.

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

07/06/21-07/12/21 Station 103 Partial sample collected.

Station collected 86 hours9.953704e-4 days 0.0239 hours 1.421958e-4 weeks 3.2723e-5 months of sample before power was lost.

Altamaha EMC contacted to restore power.

Switch/disconnect was closed and power restored.

11/22/21-11/29/22 Grass Plot 106 No sample collected Sample station did not have grass available due to weather conditions.

Annual ryegrass had been planted.

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 2021 HNP 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 2021 annual average weekly gross beta activity was 22.1 fCi/m3 for the indicator stations. It was 0.5 fCi/m3 greater than the control station average of 21.6 fCi/m3 for the year. The difference was less than the calculated MDD of 1.00 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 2021 HNP 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 1998 20.0 20.5 1974 87 90 1999 21.3 21.3 1975 85 90 2000 23.6 23.9 1976 135 139 2001 21.5 21.0 1977 239 247 2002 19.3 19.2 1978 130 137 2003 18.8 18.2 1979 38 39 2004 21.4 21.3 1980 49 48 2005 19.7 19.4 1981 191 203 2006 24.9 24.7 1982 33 34 2007 24.4 24.3 1983 31 30 2008 21.8 22.5 1984 26 28 2009 21.2 21.4 1985 22 21 2010 23.1 24.0 1986 36 38 2011 23.5 25.1 1987 23 22 2012 23.7 22.7 1988 22.6 21.7 2013 21.3 20.3 1989 18.4 17.8 2014 22.0 22.3 1990 19.3 18.7 2015 19.1 19.6 1991 18.1 18 2016 21.4 21.6 1992 18.5 18.4 2017 19.7 19.9 1993 20.4 20.7 2018 20.8 21.2 1994 19.5 19.7 2019 22.1 21.3 1995 21.7 21.7 2020 21.1 20.7 1996 21.3 21.4 2021 22.1 21.6 1997 20.3 20.7 Figure 3-1. Average Weekly Gross Beta Air Concentration 0

100 200 300 Pre-op 1975 1977 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021 Concentration (fCi/m3)

YEAR Indicator Control

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report 16 l P a g e 3.1.2 Gamma Particulates During 2021, 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 2021. 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 2021, 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 2021 average quarterly exposure at the indicator stations (inner ring) was 12.3 mR with a range of 8.8 to 22.3 mR. The indicator station average was 0.7 mR greater than the control station average (11.6 mR with a range of 9.7 to 14.3 mR). The difference was less than the calculated MDD of 0.74 mR, so the difference was not statistically discernible.

The quarterly exposures acquired at the community/other (outer ring) stations during 2021 ranged from 8.8 to 19.3 mR with an average of 12.2 mR which was greater than the control station average by 0.6 mR. The difference was less than the calculated MDD of 0.63 mR, so the

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report 17 l P a g e difference was not statistically discernible. 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 2021 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 1998 12.1 12.3 12.3 1974 23.2 25.6 NA 1999 12.8 13.2 13.0 1975 10.0 10.5 NA 2000 13.6 13.3 13.3 1976 8.18 6.90 NA 2001 12.0 12.1 11.8 1977 7.31 6.52 NA 2002 11.7 11.7 11.5 1978 6.67 6.01 NA 2003 11.4 11.4 11.4 1979 5.16 6.77 NA 2004 12.2 12.4 12.2 1980 4.44 5.04 4.42 2005 12.1 12.5 12.0 1981 5.90 5.70 5.70 2006 12.4 11.9 11.8 1982 12.3 12.0 11.3 2007 12.8 12.5 12.6 1983 11.4 11.3 10.6 2008 13.0 12.3 12.4 1984 13.3 12.9 11.9 2009 12.4 12.2 12.2 1985 14.7 14.7 13.7 2010 15.8 15.6 16.0 1986 15.0 14.0 14.5 2011 19.7 19.1 19.2 1987 14.9 14.6 15.3 2012 14.4 13.6 14.1 1988 15.0 14.7 15.2 2013 12.7 10.2 12.4 1989 16.4 18.0 16.5 2014 12.0 11.7 11.8 1990 14.9 13.9 14.7 2015 12.1 11.7 12.1 1991 15.1 13.7 15.6 2016 12.1 11.0 11.3 1992 11.9 10.9 12.3 2017 12.5 11.5 12.1 1993 11.6 10.7 11.5 2018 11.4 11.3 11.1 1994 11.0 10.7 11.2 2019 11.4 11.5 11.1 1995 11.5 10.8 11.3 2020 12.7 12.6 12.5 1996 11.6 11.3 11.6 2021 12.3 11.6 12.2 1997 12.3 11.8 12.3

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report 18 l P a g e Figure 3-2. Average Quarterly Exposure from Direct Radiation Figure 3-3. 2021 Average Exposure from Direct Radiation 0

5 10 15 20 25 30Pre-op197719811985198919931997200120052009201320172021 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 2021 HNP 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 2021 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 12.9 pCi/kg-wet) and control station samples (average of 52.8 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 2021, 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 2021 HNP 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.

Cs-137 was detected in one sample at the indicator location. The indicator sample value was 14.4 pCi/kg. Cs-137 is not typically detected in fish samples at Plant Hatch; however due to the aforementioned atmospheric persistence of Cs-137, this result is not likely related to plant operations. This result is also well below the MDC of 150 pCi/kg.

3.3.4 Biological Media Summary There were no statistical differences, trends, or anomalies associated with the 2021 biological media samples when compared to historical data. Figure 3-4 below, details the 2021 Cs-137 concentration compared to the MDC.

Figure 3-4. 2021 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 2021 HNP 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 2021 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 151.4 pCi/l which was 113.1 pCi/l more than the average at the control station (38.3 pCi/l). The difference was less than the calculated MDD of 227.5 pCi/l, so the difference was not statistically discernible. Figure 3-5 below details the 2021 historical average tritium concentrations in river water.

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

0 1000 2000 3000 4000 5000 Pre 1975 1977 1979 1981 1983 1985 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 2007 2009 2011 2013 2015 2017 2019 2021 Concentration (pCi/l)

YEAR Indicator Control MDC

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report 22 l P a g e 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 is 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 Fe-59. For Fe-59, an investigation is undertaken when the coefficient of variation exceeds the values shown on Table 3-6 below:

Table 3-6. Interlaboratory Comparison Limits Nuclide Concentration

Percent Coefficient of Variation Fe-59

<80 25

>80 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:

gross beta and gamma isotopic analyses of an air filter

gamma isotopic analyses of milk samples

gross beta, tritium and gamma isotopic analyses of water samples The 2021 analyses included tritium, gross beta and gamma emitting radionuclides in different matrices. The results for all analyses were within acceptable limits for accuracy.

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report 23 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 (1S)

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

I-131 3/11/2021 89.7 88.1 2.51 1.47 5.60 0.31 GAMMA ISOTOPIC ANALYSIS OF AN AIR FILTER (pCi/filter)

Ce-141 9/9/2021 123 116 6.27 1.94 7.25 0.82 Co-58 127 119 4.52 1.99 5.65 1.15 Co-60 151 147 1.76 2.45 4.05 0.66 Cs-134 98.6 94.3 3.56 1.58 5.20 0.83 Cs-137 121 113 4.02 1.89 5.44 1.23 Fe-59 107 103 4.72 1.72 6.82 0.52 Mn-54 144 130 2.83 2.17 4.67 2.12 Zn-65 176 155 7.60 2.59 6.48 1.85 GROSS BETA ANALYSIS OF AN AIR FILTER (PCI/FILTER)

Gross Beta 6/3/2021 123 130 3.91 2.17 4.22 1.35 GAMMA ISOTOPIC ANALYSIS OF A MILK SAMPLE (PCI/LITER)

Ce-141 123 114 3.91 1.91 7.3 0.96 Co-58 9/9/2021 125 118 5.49 1.97 7.33 0.79 Co-60 155 145 6.18 2.42 6.19 1.05 Cs-134 95.3 93.1 4.43 1.56 6.96 0.33 Cs-137 121 112 5.89 1.87 7.61 0.94 Fe-59 107 102 3.32 1.70 8.17 0.55 I-131 89.5 85.6 9.22 1.43 13.01 0.33 Mn-54 140 128 4.27 2.14 6.40 1.32 Zn-65 170 153 11.54 2.56 9.70 1.01 GROSS BETA ANALYSIS OF WATER SAMPLE (PCI/LITER)

Gross Beta 6/3/2021 214 258 27.58 4.31 13.79 1.51 12/2/2021 304 281 6.10 4.69 4.06

-1.87

PLANT HATCH 2021 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 (1S)

Percent Coefficient of Variation Normalized Deviation GAMMA ISOTOPIC ANALYSIS OF WATER SAMPLES (PCI/LITER)

Ce-141 6/3/2021 187 180 8.62 3.00 7.38

-0.51 Co-58 187 179 9.64 2.98 7.36

-0.56 Co-60 225 215 4.96 3.59 4.95

-0.89 Cs-134 212 213 4.69 3.56 4.86 0.14 Cs-137 192 188 4.00 3.13 5.59

-0.41 Fe-59 178 183 7.52 3.06 7.55 0.36 I-131 95.7 92.0 5.79 1.54 10.44

-0.37 Mn-54 264 249 12.79 4.16 6.82

-0.84 Zn-65 319 300 17.65 5.01 7.77

-0.78 TRITIUM ANALYSIS OF WATER SAMPLES (PCI/LITER)

H-3 9/9/2021 10800 11700 428.02 195 4.75

-1.66 GAMMA ISOTOPIC ANALYSIS OF VEGETATION SAMPLES (PCI/KG)

Ce-141 162 148 9.93 2.48 10.42 0.85 Co-58 6/3/2021 164 147 13.6 2.46 11.45

-0.92 Co-60 179 177 8.64 2.96 7.81

-0.16 Cs-134 180 176 11.0 2.93 8.19

-0.28 Cs-137 170 155 7.90 2.58 8.71

-0.98 Fe-59 152 151 12.7 2.52 13.65

-0.07 Mn-54 230 205 13.4 3.43 8.65

-1.27 Zn-65 275 247 28.7 4.13 13.73

-0.73

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report 25 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 2021 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 2021 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 1.1 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 in the summer of 2021 to identify any new withdrawal of water from the river for drinking, irrigation, or construction purposes.

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report 26 l P a g e Correspondence from the Georgia Environmental Protection Division (EPD) on December 8, 2021, 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 2021, the meteorological tower results were comparable to previous years, precipitation amounts (72.75) and wind direction (from south-southwest at 10m, from the northeast at 60m, from the south-southwest at the 100m, and southwest at the 45m on the backup tower) were also similar. Additionally, the meteorological data meets the quality requirements, therefore, no changes to REMP monitoring locations are warranted.

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report 27 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 2021 activities associated with the REMP, SNC offers the following conclusions:

Samples were collected and there were no deviations or anomalies that negatively affected the quality of the REMP

Land use census and river survey did not require any changes

Analytical results were below reporting levels

These values were consistent with historical results which indicate no adverse radiological environmental impacts associated with the operation of HNP

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report Appendix A APPENDIX A Maps

Legend:

Indicator Stations -

Control Stations -

Other Stations -

Drawn by:

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

SW W

NW N

NE E

SE April 20, 2022 Edwin I. Hatch Nuclear Plant 2021 Annual Radiological Environmental Report REMP Stations in Plant Vicinity

Legend:

Indicator Stations -

Control Stations -

Other Stations -

Drawn by:

Appendix A Map A-2 C. Groce April 20, 2022 Edwin I. Hatch Nuclear Plant 2021 Annual Radiological Environmental Report REMP Stations within 10 miles

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PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report Appendix B APPENDIX B Errata

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report Appendix B There were no errata for the 2021 report.

PLANT HATCH 2021 HNP Annual Radiological Environmental Operating Report Appendix C APPENDIX C Data The following pages contain the individual data points from the 2021 reporting year. The units for the data points varies by media, as follows:

Airborne Radioiodine and Particulates/Water/Milk - picocuries/liter (pCi/l)

Sediment/Vegetation/Fish - picocuries/kilogram (pCi/kg)

Direct Radiation - millirem (mR)

cust_id profile_name analyte_name cust_sample_id collect_date result result_units lab_sample_id Hatch Charcoal Ct I-131 103 1/4/2021 0 pCi/m3 127932001 Hatch Air Filters Gross Beta 103 1/4/2021 0.01451 pCi/m3 127931001 Hatch Air Filters Gross Beta 103 1/11/2021 0.02702 pCi/m3 128029001 Hatch Charcoal Ct I-131 103 1/11/2021 0 pCi/m3 128030001 Hatch Air Filters Gross Beta 103 1/19/2021 0.02369 pCi/m3 128177001 Hatch Charcoal Ct I-131 103 1/19/2021 0 pCi/m3 128178001 Hatch Charcoal Ct I-131 103 1/25/2021 0 pCi/m3 128294001 Hatch Air Filters Gross Beta 103 1/25/2021 0.02274 pCi/m3 128293001 Hatch Charcoal Ct I-131 103 2/1/2021 0 pCi/m3 128354001 Hatch Air Filters Gross Beta 103 2/1/2021 0.02069 pCi/m3 128353001 Hatch Air Filters Gross Beta 103 2/8/2021 0.01922 pCi/m3 128429001 Hatch Charcoal Ct I-131 103 2/8/2021 0 pCi/m3 128430001 Hatch Air Filters Gross Beta 103 2/15/2021 0.009746 pCi/m3 128567001 Hatch Charcoal Ct I-131 103 2/15/2021 0 pCi/m3 128568001 Hatch Charcoal Ct I-131 103 2/22/2021 0 pCi/m3 128649001 Hatch Air Filters Gross Beta 103 2/22/2021 0.02438 pCi/m3 128648001 Hatch Air Filters Gross Beta 103 3/1/2021 0.0255 pCi/m3 128759001 Hatch Charcoal Ct I-131 103 3/1/2021 0 pCi/m3 128760001 Hatch Air Filters Gross Beta 103 3/8/2021 0.02421 pCi/m3 128842001 Hatch Charcoal Ct I-131 103 3/8/2021 0 pCi/m3 128843001 Hatch Charcoal Ct I-131 103 3/15/2021 0 pCi/m3 128929001 Hatch Air Filters Gross Beta 103 3/15/2021 0.02772 pCi/m3 128928001 Hatch Air Filters Gross Beta 103 3/22/2021 0.02409 pCi/m3 128997001 Hatch Charcoal Ct I-131 103 3/22/2021 0 pCi/m3 128998001 Hatch Milk Gamma Cs-137 GSP 1/5/2021 0 pCi/L 127930001 Hatch Milk Gamma Cs-134 GSP 1/5/2021 0 pCi/L 127930001 Hatch Air Filters Gross Beta 103 3/29/2021 0.01705 pCi/m3 129040001 Hatch Charcoal Ct I-131 103 3/29/2021 0 pCi/m3 129041001 Hatch Milk Gamma Be-7 GSP 1/5/2021 0 pCi/L 127930001 Hatch Air Qtr Comp I-131 103 3/29/2021 0 pCi/m3 129160001 Hatch Air Filters Gross Beta 103 4/5/2021 0.02575 pCi/m3 129117001 Hatch Charcoal Ct I-131 103 4/5/2021 0 pCi/m3 129118001 Hatch Charcoal Ct I-131 103 4/13/2021 0 pCi/m3 129177001 Hatch Air Filters Gross Beta 103 4/13/2021 0.02793 pCi/m3 129176001 Hatch Air Filters Gross Beta 103 4/19/2021 0.03036 pCi/m3 129255001 Hatch Charcoal Ct I-131 103 4/19/2021 0 pCi/m3 129256001 Hatch Charcoal Ct I-131 103 4/26/2021 0 pCi/m3 129301001 Hatch Air Filters Gross Beta 103 4/26/2021 0.02739 pCi/m3 129300001 Hatch Charcoal Ct I-131 103 5/3/2021 0 pCi/m3 129369001 Hatch Air Filters Gross Beta 103 5/3/2021 0.02412 pCi/m3 129368001 Hatch Air Filters Gross Beta 103 5/10/2021 0.0256 pCi/m3 129447001 Hatch Charcoal Ct I-131 103 5/10/2021 0 pCi/m3 129448001 Hatch Charcoal Ct I-131 103 5/18/2021 0 pCi/m3 129518001 Hatch Air Filters Gross Beta 103 5/18/2021 0.02181 pCi/m3 129517001 Hatch Charcoal Ct I-131 103 5/24/2021 0 pCi/m3 129599001 Hatch Air Filters Gross Beta 103 5/24/2021 0.02212 pCi/m3 129598001 Hatch Air Filters Gross Beta 103 6/1/2021 0.02583 pCi/m3 129659001 Hatch Charcoal Ct I-131 103 6/1/2021 0 pCi/m3 129660001 Hatch Charcoal Ct I-131 103 6/7/2021 0 pCi/m3 129778001 Hatch Air Filters Gross Beta 103 6/7/2021 0.01416 pCi/m3 129777001 Hatch Charcoal Ct I-131 103 6/14/2021 0 pCi/m3 129920001 Hatch Air Filters Gross Beta 103 6/14/2021 0.01473 pCi/m3 129919001 Hatch Air Filters Gross Beta 103 6/21/2021 0.0261 pCi/m3 130020001 Hatch Charcoal Ct I-131 103 6/21/2021 0 pCi/m3 130021001 Hatch Air Qtr Comp I-131 103 6/28/2021 0 pCi/m3 130248001 Hatch Milk Gamma K-40 GSP 1/5/2021 995.1 pCi/L 127930001 Hatch Milk Gamma Cs-137 GSP 1/19/2021 0 pCi/L 128176001 Hatch Milk Gamma Cs-134 GSP 1/19/2021 0 pCi/L 128176001 Hatch Air Filters Gross Beta 103 6/28/2021 0.01959 pCi/m3 130141001 Hatch Charcoal Ct I-131 103 6/28/2021 0 pCi/m3 130142001 Hatch Charcoal Ct I-131 103 7/6/2021 0 pCi/m3 130195001 Hatch Air Filters Gross Beta 103 7/6/2021 0.01283 pCi/m3 130194001 Hatch Air Filters Gross Beta 103 7/12/2021 0.01632 pCi/m3 130292001 Hatch Charcoal Ct I-131 103 7/12/2021 0 pCi/m3 130293001 Hatch Air Filters Gross Beta 103 7/19/2021 0.01845 pCi/m3 130424001 Hatch Charcoal Ct I-131 103 7/19/2021 0 pCi/m3 130425001 Hatch Charcoal Ct I-131 103 7/26/2021 0 pCi/m3 130494001 Hatch Air Filters Gross Beta 103 7/26/2021 0.0181 pCi/m3 130493001 Hatch Air Filters Gross Beta 103 8/2/2021 0.02461 pCi/m3 130588001 Hatch Charcoal Ct I-131 103 8/2/2021 0 pCi/m3 130589001 Hatch Charcoal Ct I-131 103 8/10/2021 0 pCi/m3 130713001 Hatch Air Filters Gross Beta 103 8/10/2021 0.01682 pCi/m3 130711001 Hatch Charcoal Ct I-131 103 8/16/2021 0 pCi/m3 130842001 Hatch Air Filters Gross Beta 103 8/16/2021 0.01814 pCi/m3 130841001 Hatch Charcoal Ct I-131 103 8/23/2021 0 pCi/m3 130990001 Hatch Air Filters Gross Beta 103 8/23/2021 0.01522 pCi/m3 130989001 Hatch Air Filters Gross Beta 103 8/30/2021 0.02316 pCi/m3 131044001 Hatch Charcoal Ct I-131 103 8/30/2021 0 pCi/m3 131045001 Hatch Charcoal Ct I-131 103 9/7/2021 0 pCi/m3 131155001 Hatch Air Filters Gross Beta 103 9/7/2021 0.0275 pCi/m3 131154001 Hatch Charcoal Ct I-131 103 9/13/2021 0 pCi/m3 131244001 Hatch Air Filters Gross Beta 103 9/13/2021 0.02876 pCi/m3 131243001 Hatch Charcoal Ct I-131 103 9/20/2021 0 pCi/m3 131335001 Hatch Air Filters Gross Beta 103 9/20/2021 0.02079 pCi/m3 131334001 Hatch Milk Gamma Be-7 GSP 1/19/2021 0 pCi/L 128176001 Hatch Milk Gamma K-40 GSP 1/19/2021 1348.2 pCi/L 128176001

Hatch Charcoal Ct I-131 103 9/27/2021 0 pCi/m3 131446001 Hatch Vegetation Be-7 106 1/25/2021 12388 pCi/Kg 128296003 Hatch Air Qtr Comp I-131 103 9/27/2021 0 pCi/m3 131792001 Hatch Air Filters Gross Beta 103 9/27/2021 0.01925 pCi/m3 131444001 Hatch Air Filters Gross Beta 103 10/5/2021 0.04577 pCi/m3 131546001 Hatch Charcoal Ct I-131 103 10/5/2021 0 pCi/m3 131547001 Hatch Charcoal Ct I-131 103 10/11/2021 0 pCi/m3 131631001 Hatch Air Filters Gross Beta 103 10/11/2021 0.01783 pCi/m3 131630001 Hatch Air Filters Gross Beta 103 10/18/2021 0.02604 pCi/m3 131713001 Hatch Charcoal Ct I-131 103 10/18/2021 0 pCi/m3 131715001 Hatch Air Filters Gross Beta 103 10/25/2021 0.036 pCi/m3 131815001 Hatch Charcoal Ct I-131 103 10/25/2021 0 pCi/m3 131816001 Hatch Air Filters Gross Beta 103 11/1/2021 0.01547 pCi/m3 131847001 Hatch Charcoal Ct I-131 103 11/1/2021 0 pCi/m3 131848001 Hatch Air Filters Gross Beta 103 11/8/2021 0.02466 pCi/m3 131943001 Hatch Charcoal Ct I-131 103 11/8/2021 0 pCi/m3 131944001 Hatch Charcoal Ct I-131 103 11/16/2021 0 pCi/m3 131996001 Hatch Air Filters Gross Beta 103 11/16/2021 0.02673 pCi/m3 131995001 Hatch Air Filters Gross Beta 103 11/22/2021 0.02106 pCi/m3 132024001 Hatch Charcoal Ct I-131 103 11/22/2021 0 pCi/m3 132025001 Hatch Charcoal Ct I-131 103 11/30/2021 0 pCi/m3 132103001 Hatch Air Filters Gross Beta 103 11/30/2021 0.02522 pCi/m3 132101001 Hatch Air Filters Gross Beta 103 12/6/2021 0.0484 pCi/m3 132153001 Hatch Charcoal Ct I-131 103 12/6/2021 0 pCi/m3 132154001 Hatch Air Filters Gross Beta 103 12/13/2021 0.02224 pCi/m3 132203001 Hatch Charcoal Ct I-131 103 12/13/2021 0 pCi/m3 132204001 Hatch Air Filters Gross Beta 103 12/20/2021 0.01387 pCi/m3 132264001 Hatch Charcoal Ct I-131 103 12/20/2021 0 pCi/m3 132266001 Hatch Vegetation Cs-134 106 1/25/2021 0 pCi/Kg 128296003 Hatch Vegetation K-40 106 1/25/2021 785.51 pCi/Kg 128296003 Hatch Air Filters Gross Beta 103 12/27/2021 0.02749 pCi/m3 132327001 Hatch Vegetation Cs-137 106 1/25/2021 37.252 pCi/Kg 128296003 Hatch Air Qtr Comp I-131 103 12/27/2021 0 pCi/m3 132405001 Hatch Charcoal Ct I-131 103 12/27/2021 0 pCi/m3 132328001 Hatch Vegetation K-40 112 1/25/2021 1255 pCi/Kg 128296002 Hatch Vegetation Be-7 112 1/25/2021 5670.4 pCi/Kg 128296002 Hatch Vegetation Cs-134 112 1/25/2021 0 pCi/Kg 128296002 Hatch Vegetation Cs-137 112 1/25/2021 0 pCi/Kg 128296002 Hatch Vegetation Cs-134 416 1/25/2021 0 pCi/Kg 128296001 Hatch Vegetation Be-7 416 1/25/2021 7883.5 pCi/Kg 128296001 Hatch Vegetation K-40 416 1/25/2021 6318.8 pCi/Kg 128296001 Hatch Vegetation Cs-137 416 1/25/2021 0 pCi/Kg 128296001 Hatch River Water Co-58 170 1/26/2021 0 pCi/L 128295001 Hatch River Water Co-60 170 1/26/2021 0 pCi/L 128295001 Hatch River Water Cs-134 170 1/26/2021 0 pCi/L 128295001 Hatch River Water Cs-137 170 1/26/2021 0 pCi/L 128295001 Hatch River Water Be-7 170 1/26/2021 0 pCi/L 128295001 Hatch River Water K-40 170 1/26/2021 0 pCi/L 128295001 Hatch River Water Cs-134 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Cs-137 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Be-7 172 1/26/2021 0 pCi/L 128295002 Hatch River Water K-40 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Co-58 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Co-60 172 1/26/2021 0 pCi/L 128295002 Hatch Milk Gamma Cs-137 GSP 2/2/2021 0 pCi/L 128355001 Hatch Milk Gamma Be-7 GSP 2/2/2021 0 pCi/L 128355001 Hatch Milk Gamma Cs-134 GSP 2/2/2021 0 pCi/L 128355001 Hatch Milk Gamma K-40 GSP 2/2/2021 1515.9 pCi/L 128355001 Hatch Milk Gamma Cs-137 GSP 2/16/2021 0 pCi/L 128610001 Hatch Milk Gamma K-40 GSP 2/16/2021 1462.8 pCi/L 128610001 Hatch Milk Gamma Be-7 GSP 2/16/2021 0 pCi/L 128610001 Hatch Milk Gamma Cs-134 GSP 2/16/2021 0 pCi/L 128610001 Hatch Vegetation Cs-134 112 2/22/2021 0 pCi/Kg 128651002 Hatch Vegetation Be-7 112 2/22/2021 4877.1 pCi/Kg 128651002 Hatch Vegetation K-40 112 2/22/2021 4477.7 pCi/Kg 128651002 Hatch Vegetation Cs-137 112 2/22/2021 0 pCi/Kg 128651002 Hatch Vegetation Cs-134 416 2/22/2021 0 pCi/Kg 128651001 Hatch Vegetation Be-7 416 2/22/2021 2244.2 pCi/Kg 128651001 Hatch Vegetation K-40 416 2/22/2021 5466.3 pCi/Kg 128651001 Hatch Vegetation Cs-137 416 2/22/2021 0 pCi/Kg 128651001 Hatch River Water K-40 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Cs-134 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Cs-137 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Be-7 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Co-58 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Co-60 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Co-58 170 2/23/2021 0 pCi/L 128650001 Hatch River Water Co-60 170 2/23/2021 0 pCi/L 128650001 Hatch River Water Cs-134 170 2/23/2021 0 pCi/L 128650001 Hatch River Water Cs-137 170 2/23/2021 0 pCi/L 128650001 Hatch River Water Be-7 170 2/23/2021 0 pCi/L 128650001 Hatch River Water K-40 170 2/23/2021 0 pCi/L 128650001 Hatch Milk Gamma Cs-137 GSP 3/2/2021 0 pCi/L 128758001 Hatch Milk Gamma K-40 GSP 3/2/2021 843.37 pCi/L 128758001 Hatch Charcoal Ct I-131 107 1/4/2021 0 pCi/m3 127932002 Hatch Air Filters Gross Beta 107 1/4/2021 0.01761 pCi/m3 127931002 Hatch Air Filters Gross Beta 107 1/11/2021 0.0282 pCi/m3 128029002

Hatch Charcoal Ct I-131 107 1/11/2021 0 pCi/m3 128030002 Hatch Air Filters Gross Beta 107 1/19/2021 0.02419 pCi/m3 128177002 Hatch Charcoal Ct I-131 107 1/19/2021 0 pCi/m3 128178002 Hatch Charcoal Ct I-131 107 1/25/2021 0 pCi/m3 128294002 Hatch Air Filters Gross Beta 107 1/25/2021 0.02479 pCi/m3 128293002 Hatch Charcoal Ct I-131 107 2/1/2021 0 pCi/m3 128354002 Hatch Air Filters Gross Beta 107 2/1/2021 0.02326 pCi/m3 128353002 Hatch Air Filters Gross Beta 107 2/8/2021 0.01693 pCi/m3 128429002 Hatch Charcoal Ct I-131 107 2/8/2021 0 pCi/m3 128430002 Hatch Charcoal Ct I-131 107 2/15/2021 0 pCi/m3 128568002 Hatch Air Filters Gross Beta 107 2/15/2021 0.009167 pCi/m3 128567002 Hatch Charcoal Ct I-131 107 2/22/2021 0 pCi/m3 128649002 Hatch Air Filters Gross Beta 107 2/22/2021 0.02195 pCi/m3 128648002 Hatch Charcoal Ct I-131 107 3/1/2021 0 pCi/m3 128760002 Hatch Air Filters Gross Beta 107 3/1/2021 0.02082 pCi/m3 128759002 Hatch Air Filters Gross Beta 107 3/8/2021 0.02028 pCi/m3 128842002 Hatch Charcoal Ct I-131 107 3/8/2021 0 pCi/m3 128843002 Hatch Air Filters Gross Beta 107 3/15/2021 0.02413 pCi/m3 128928002 Hatch Charcoal Ct I-131 107 3/15/2021 0 pCi/m3 128929002 Hatch Air Filters Gross Beta 107 3/22/2021 0.02062 pCi/m3 128997002 Hatch Charcoal Ct I-131 107 3/22/2021 0 pCi/m3 128998002 Hatch Milk Gamma Be-7 GSP 3/2/2021 0 pCi/L 128758001 Hatch Air Filters Gross Beta 107 3/29/2021 0.01554 pCi/m3 129040002 Hatch Charcoal Ct I-131 107 3/29/2021 0 pCi/m3 129041002 Hatch Milk Gamma Cs-134 GSP 3/2/2021 0 pCi/L 128758001 Hatch Air Qtr Comp I-131 107 3/29/2021 0 pCi/m3 129160002 Hatch Milk Gamma Cs-137 GSP 3/16/2021 0 pCi/L 128930001 Hatch Air Filters Gross Beta 107 4/5/2021 0.0248 pCi/m3 129117002 Hatch Charcoal Ct I-131 107 4/5/2021 0 pCi/m3 129118002 Hatch Air Filters Gross Beta 107 4/13/2021 0.02754 pCi/m3 129176002 Hatch Charcoal Ct I-131 107 4/13/2021 0 pCi/m3 129177002 Hatch Air Filters Gross Beta 107 4/19/2021 0.02838 pCi/m3 129255002 Hatch Charcoal Ct I-131 107 4/19/2021 0 pCi/m3 129256002 Hatch Charcoal Ct I-131 107 4/26/2021 0 pCi/m3 129301002 Hatch Air Filters Gross Beta 107 4/26/2021 0.02471 pCi/m3 129300002 Hatch Charcoal Ct I-131 107 5/3/2021 0 pCi/m3 129369002 Hatch Air Filters Gross Beta 107 5/3/2021 0.02389 pCi/m3 129368002 Hatch Charcoal Ct I-131 107 5/10/2021 0 pCi/m3 129448002 Hatch Air Filters Gross Beta 107 5/10/2021 0.02044 pCi/m3 129447002 Hatch Charcoal Ct I-131 107 5/18/2021 0 pCi/m3 129518002 Hatch Air Filters Gross Beta 107 5/18/2021 0.01905 pCi/m3 129517002 Hatch Air Filters Gross Beta 107 5/24/2021 0.01994 pCi/m3 129598002 Hatch Charcoal Ct I-131 107 5/24/2021 0 pCi/m3 129599002 Hatch Air Filters Gross Beta 107 6/1/2021 0.02056 pCi/m3 129659002 Hatch Charcoal Ct I-131 107 6/1/2021 0 pCi/m3 129660002 Hatch Air Filters Gross Beta 107 6/7/2021 0.00968 pCi/m3 129777002 Hatch Charcoal Ct I-131 107 6/7/2021 0 pCi/m3 129778002 Hatch Charcoal Ct I-131 107 6/14/2021 0 pCi/m3 129920002 Hatch Air Filters Gross Beta 107 6/14/2021 0.01332 pCi/m3 129919002 Hatch Charcoal Ct I-131 107 6/21/2021 0 pCi/m3 130021002 Hatch Air Filters Gross Beta 107 6/21/2021 0.02189 pCi/m3 130020002 Hatch Charcoal Ct I-131 107 6/28/2021 0 pCi/m3 130142002 Hatch Air Filters Gross Beta 107 6/28/2021 0.004265 pCi/m3 130141002 Hatch Milk Gamma K-40 GSP 3/16/2021 519.4 pCi/L 128930001 Hatch Milk Gamma Be-7 GSP 3/16/2021 0 pCi/L 128930001 Hatch Milk Gamma Cs-134 GSP 3/16/2021 0 pCi/L 128930001 Hatch Air Qtr Comp I-131 107 6/28/2021 0 pCi/m3 130248002 Hatch Charcoal Ct I-131 107 7/6/2021 0 pCi/m3 130195002 Hatch Air Filters Gross Beta 107 7/6/2021 0.01744 pCi/m3 130194002 Hatch Charcoal Ct I-131 107 7/12/2021 0 pCi/m3 130293002 Hatch Air Filters Gross Beta 107 7/12/2021 0.01491 pCi/m3 130292002 Hatch Charcoal Ct I-131 107 7/19/2021 0 pCi/m3 130425002 Hatch Air Filters Gross Beta 107 7/19/2021 0.01521 pCi/m3 130424002 Hatch Charcoal Ct I-131 107 7/26/2021 0 pCi/m3 130494002 Hatch Air Filters Gross Beta 107 7/26/2021 0.02043 pCi/m3 130493002 Hatch Air Filters Gross Beta 107 8/2/2021 0.02523 pCi/m3 130588002 Hatch Charcoal Ct I-131 107 8/2/2021 0 pCi/m3 130589002 Hatch Air Filters Gross Beta 107 8/10/2021 0.0163 pCi/m3 130711002 Hatch Charcoal Ct I-131 107 8/10/2021 0 pCi/m3 130713002 Hatch Air Filters Gross Beta 107 8/16/2021 0.01573 pCi/m3 130841002 Hatch Charcoal Ct I-131 107 8/16/2021 0 pCi/m3 130842002 Hatch Air Filters Gross Beta 107 8/23/2021 0.0117 pCi/m3 130989002 Hatch Charcoal Ct I-131 107 8/23/2021 0 pCi/m3 130990002 Hatch Air Filters Gross Beta 107 8/30/2021 0.01905 pCi/m3 131044002 Hatch Charcoal Ct I-131 107 8/30/2021 0 pCi/m3 131045002 Hatch Air Filters Gross Beta 107 9/7/2021 0.02379 pCi/m3 131154002 Hatch Charcoal Ct I-131 107 9/7/2021 0 pCi/m3 131155002 Hatch Charcoal Ct I-131 107 9/13/2021 0 pCi/m3 131244002 Hatch Air Filters Gross Beta 107 9/13/2021 0.02904 pCi/m3 131243002 Hatch Air Filters Gross Beta 107 9/20/2021 0.02034 pCi/m3 131334002 Hatch Charcoal Ct I-131 107 9/20/2021 0 pCi/m3 131335002 Hatch River Water Be-7 172 3/23/2021 0 pCi/L 128987002 Hatch River Water K-40 172 3/23/2021 0 pCi/L 128987002 Hatch Air Filters Gross Beta 107 9/27/2021 0.0164 pCi/m3 131444002 Hatch Air Qtr Comp I-131 107 9/27/2021 0 pCi/m3 131792002 Hatch Charcoal Ct I-131 107 9/27/2021 0 pCi/m3 131446002 Hatch River Water Co-58 172 3/23/2021 0 pCi/L 128987002

Hatch Air Filters Gross Beta 107 10/5/2021 0.04543 pCi/m3 131546002 Hatch Charcoal Ct I-131 107 10/5/2021 0 pCi/m3 131547002 Hatch Charcoal Ct I-131 107 10/11/2021 0 pCi/m3 131631002 Hatch Air Filters Gross Beta 107 10/11/2021 0.01607 pCi/m3 131630002 Hatch Air Filters Gross Beta 107 10/18/2021 0.02097 pCi/m3 131713002 Hatch Charcoal Ct I-131 107 10/18/2021 0 pCi/m3 131715002 Hatch Air Filters Gross Beta 107 10/25/2021 0.03316 pCi/m3 131815002 Hatch Charcoal Ct I-131 107 10/25/2021 0 pCi/m3 131816002 Hatch Charcoal Ct I-131 107 11/1/2021 0 pCi/m3 131848002 Hatch Air Filters Gross Beta 107 11/1/2021 0.01397 pCi/m3 131847002 Hatch Air Filters Gross Beta 107 11/8/2021 0.02394 pCi/m3 131943002 Hatch Charcoal Ct I-131 107 11/8/2021 0 pCi/m3 131944002 Hatch Charcoal Ct I-131 107 11/16/2021 0 pCi/m3 131996002 Hatch Air Filters Gross Beta 107 11/16/2021 0.02541 pCi/m3 131995002 Hatch Air Filters Gross Beta 107 11/22/2021 0.0202 pCi/m3 132024002 Hatch Charcoal Ct I-131 107 11/22/2021 0 pCi/m3 132025002 Hatch Charcoal Ct I-131 107 11/30/2021 0 pCi/m3 132103002 Hatch Air Filters Gross Beta 107 11/30/2021 0.0232 pCi/m3 132101002 Hatch Air Filters Gross Beta 107 12/6/2021 0.04244 pCi/m3 132153002 Hatch Charcoal Ct I-131 107 12/6/2021 0 pCi/m3 132154002 Hatch Charcoal Ct I-131 107 12/13/2021 0 pCi/m3 132204002 Hatch Air Filters Gross Beta 107 12/13/2021 0.02574 pCi/m3 132203002 Hatch Charcoal Ct I-131 107 12/20/2021 0 pCi/m3 132266002 Hatch Air Filters Gross Beta 107 12/20/2021 0.01601 pCi/m3 132264002 Hatch Charcoal Ct I-131 107 12/27/2021 0 pCi/m3 132328002 Hatch Air Qtr Comp I-131 107 12/27/2021 0 pCi/m3 132405002 Hatch River Water Co-60 172 3/23/2021 0 pCi/L 128987002 Hatch River Water Cs-134 172 3/23/2021 0 pCi/L 128987002 Hatch River Water Cs-137 172 3/23/2021 0 pCi/L 128987002 Hatch Air Filters Gross Beta 107 12/27/2021 0.02465 pCi/m3 132327002 Hatch Air Filters Gross Beta 112 1/4/2021 0.01527 pCi/m3 127931003 Hatch Charcoal Ct I-131 112 1/4/2021 0 pCi/m3 127932003 Hatch Air Filters Gross Beta 112 1/11/2021 0.02911 pCi/m3 128029003 Hatch Charcoal Ct I-131 112 1/11/2021 0 pCi/m3 128030003 Hatch Air Filters Gross Beta 112 1/19/2021 0.02399 pCi/m3 128177003 Hatch Charcoal Ct I-131 112 1/19/2021 0 pCi/m3 128178003 Hatch Air Filters Gross Beta 112 1/25/2021 0.02194 pCi/m3 128293003 Hatch Charcoal Ct I-131 112 1/25/2021 0 pCi/m3 128294003 Hatch River Water Cs-134 170 3/23/2021 0 pCi/L 128987001 Hatch River Water Cs-137 170 3/23/2021 0 pCi/L 128987001 Hatch River Water Be-7 170 3/23/2021 0 pCi/L 128987001 Hatch River Water K-40 170 3/23/2021 0 pCi/L 128987001 Hatch River Water Co-58 170 3/23/2021 0 pCi/L 128987001 Hatch Air Filters Gross Beta 112 2/1/2021 0.02257 pCi/m3 128353003 Hatch Charcoal Ct I-131 112 2/1/2021 0 pCi/m3 128354003 Hatch Air Filters Gross Beta 112 2/8/2021 0.01618 pCi/m3 128429003 Hatch Charcoal Ct I-131 112 2/8/2021 0 pCi/m3 128430003 Hatch Air Filters Gross Beta 112 2/15/2021 0.01076 pCi/m3 128567003 Hatch Charcoal Ct I-131 112 2/15/2021 0 pCi/m3 128568003 Hatch Air Filters Gross Beta 112 2/22/2021 0.02318 pCi/m3 128648003 Hatch Charcoal Ct I-131 112 2/22/2021 0 pCi/m3 128649003 Hatch River Water Co-60 170 3/23/2021 0 pCi/L 128987001 Hatch Air Qtr Comp Cs-137 112 3/29/2021 0 pCi/m3 129160003 Hatch Air Qtr Comp Be-7 112 3/29/2021 0.09442 pCi/m3 129160003 Hatch Air Qtr Comp Cs-134 112 3/29/2021 0 pCi/m3 129160003 Hatch Air Qtr Comp Cs-137 107 3/29/2021 0 pCi/m3 129160002 Hatch Air Filters Gross Beta 112 3/1/2021 0.02413 pCi/m3 128759003 Hatch Charcoal Ct I-131 112 3/1/2021 0 pCi/m3 128760003 Hatch Charcoal Ct I-131 112 3/8/2021 0 pCi/m3 128843003 Hatch Air Filters Gross Beta 112 3/8/2021 0.02142 pCi/m3 128842003 Hatch Charcoal Ct I-131 112 3/15/2021 0 pCi/m3 128929003 Hatch Air Filters Gross Beta 112 3/15/2021 0.02753 pCi/m3 128928003 Hatch Air Filters Gross Beta 112 3/22/2021 0.02089 pCi/m3 128997003 Hatch Charcoal Ct I-131 112 3/22/2021 0 pCi/m3 128998003 Hatch Air Qtr Comp Cs-134 107 3/29/2021 0 pCi/m3 129160002 Hatch Air Qtr Comp Be-7 107 3/29/2021 0.06655 pCi/m3 129160002 Hatch Air Filters Gross Beta 112 3/29/2021 0.01552 pCi/m3 129040003 Hatch Charcoal Ct I-131 112 3/29/2021 0 pCi/m3 129041003 Hatch Air Qtr Comp I-131 112 3/29/2021 0 pCi/m3 129160003 Hatch Air Qtr Comp Be-7 309 3/29/2021 0.08633 pCi/m3 129160006 Hatch Air Qtr Comp Cs-137 309 3/29/2021 0 pCi/m3 129160006 Hatch Air Qtr Comp Cs-134 309 3/29/2021 0 pCi/m3 129160006 Hatch Air Qtr Comp Cs-137 304 3/29/2021 0 pCi/m3 129160005 Hatch Air Qtr Comp Cs-134 304 3/29/2021 0 pCi/m3 129160005 Hatch Air Qtr Comp Be-7 304 3/29/2021 0.07768 pCi/m3 129160005 Hatch Air Filters Gross Beta 112 4/5/2021 0.02344 pCi/m3 129117003 Hatch Charcoal Ct I-131 112 4/5/2021 0 pCi/m3 129118003 Hatch Air Filters Gross Beta 112 4/13/2021 0.02642 pCi/m3 129176003 Hatch Charcoal Ct I-131 112 4/13/2021 0 pCi/m3 129177003 Hatch Air Filters Gross Beta 112 4/19/2021 0.02673 pCi/m3 129255003 Hatch Charcoal Ct I-131 112 4/19/2021 0 pCi/m3 129256003 Hatch Charcoal Ct I-131 112 4/26/2021 0 pCi/m3 129301003 Hatch Air Filters Gross Beta 112 4/26/2021 0.02245 pCi/m3 129300003 Hatch Air Qtr Comp Be-7 103 3/29/2021 0.09098 pCi/m3 129160001 Hatch Air Qtr Comp Cs-137 103 3/29/2021 0 pCi/m3 129160001 Hatch Air Qtr Comp Cs-134 103 3/29/2021 0 pCi/m3 129160001 Hatch Air Qtr Comp Be-7 116 3/29/2021 0.1206 pCi/m3 129160004

Hatch Air Qtr Comp Cs-137 116 3/29/2021 0 pCi/m3 129160004 Hatch Charcoal Ct I-131 112 5/3/2021 0 pCi/m3 129369003 Hatch Air Filters Gross Beta 112 5/3/2021 0.02805 pCi/m3 129368003 Hatch Air Filters Gross Beta 112 5/10/2021 0.02067 pCi/m3 129447003 Hatch Charcoal Ct I-131 112 5/10/2021 0 pCi/m3 129448003 Hatch Air Filters Gross Beta 112 5/18/2021 0.01725 pCi/m3 129517003 Hatch Charcoal Ct I-131 112 5/18/2021 0 pCi/m3 129518003 Hatch Charcoal Ct I-131 112 6/1/2021 0 pCi/m3 129660003 Hatch Air Filters Gross Beta 112 6/1/2021 0.02612 pCi/m3 129659003 Hatch Air Qtr Comp Cs-134 116 3/29/2021 0 pCi/m3 129160004 Hatch Vegetation Cs-134 416 3/29/2021 0 pCi/Kg 129042001 Hatch Vegetation Be-7 416 3/29/2021 217.72 pCi/Kg 129042001 Hatch Vegetation K-40 416 3/29/2021 5468.3 pCi/Kg 129042001 Hatch Vegetation Cs-137 416 3/29/2021 0 pCi/Kg 129042001 Hatch Charcoal Ct I-131 112 6/7/2021 0 pCi/m3 129778003 Hatch Air Filters Gross Beta 112 6/7/2021 0.01224 pCi/m3 129777003 Hatch Air Filters Gross Beta 112 6/14/2021 0.01625 pCi/m3 129919003 Hatch Charcoal Ct I-131 112 6/14/2021 0 pCi/m3 129920003 Hatch Air Filters Gross Beta 112 6/21/2021 0.02337 pCi/m3 130020003 Hatch Charcoal Ct I-131 112 6/21/2021 0 pCi/m3 130021003 Hatch Air Filters Gross Beta 112 6/28/2021 0.01327 pCi/m3 130141003 Hatch Air Qtr Comp I-131 112 6/28/2021 0 pCi/m3 130248003 Hatch Milk Gamma Cs-137 GSP 3/30/2021 0 pCi/L 129043001 Hatch Milk Gamma Cs-134 GSP 3/30/2021 0 pCi/L 129043001 Hatch Milk Gamma Be-7 GSP 3/30/2021 0 pCi/L 129043001 Hatch Charcoal Ct I-131 112 6/28/2021 0 pCi/m3 130142003 Hatch Milk Gamma K-40 GSP 3/30/2021 1512 pCi/L 129043001 Hatch Vegetation Be-7 112 3/30/2021 1430.1 pCi/Kg 129042002 Hatch Vegetation K-40 112 3/30/2021 4798.3 pCi/Kg 129042002 Hatch Vegetation Cs-134 112 3/30/2021 0 pCi/Kg 129042002 Hatch Vegetation Cs-137 112 3/30/2021 0 pCi/Kg 129042002 Hatch Charcoal Ct I-131 112 7/6/2021 0 pCi/m3 130195003 Hatch Air Filters Gross Beta 112 7/6/2021 0.01627 pCi/m3 130194003 Hatch Charcoal Ct I-131 112 7/12/2021 0 pCi/m3 130293003 Hatch Air Filters Gross Beta 112 7/12/2021 0.01585 pCi/m3 130292003 Hatch Air Filters Gross Beta 112 7/19/2021 0.01477 pCi/m3 130424003 Hatch Charcoal Ct I-131 112 7/19/2021 0 pCi/m3 130425003 Hatch Air Filters Gross Beta 112 7/26/2021 0.01726 pCi/m3 130493003 Hatch Charcoal Ct I-131 112 7/26/2021 0 pCi/m3 130494003 Hatch Vegetation Be-7 106 3/30/2021 1978 pCi/Kg 129042003 Hatch Vegetation K-40 106 3/30/2021 4044.5 pCi/Kg 129042003 Hatch Vegetation Cs-134 106 3/30/2021 0 pCi/Kg 129042003 Hatch Vegetation Cs-137 106 3/30/2021 16.792 pCi/Kg 129042003 Hatch Milk Gamma Cs-137 GSP 4/13/2021 0 pCi/L 129175001 Hatch Charcoal Ct I-131 112 8/2/2021 0 pCi/m3 130589003 Hatch Air Filters Gross Beta 112 8/2/2021 0.02251 pCi/m3 130588003 Hatch Air Filters Gross Beta 112 8/10/2021 0.01651 pCi/m3 130711003 Hatch Charcoal Ct I-131 112 8/10/2021 0 pCi/m3 130713003 Hatch Charcoal Ct I-131 112 8/16/2021 0 pCi/m3 130842003 Hatch Air Filters Gross Beta 112 8/16/2021 0.01796 pCi/m3 130841003 Hatch Charcoal Ct I-131 112 8/23/2021 0 pCi/m3 130990003 Hatch Air Filters Gross Beta 112 8/23/2021 0.01021 pCi/m3 130989003 Hatch Charcoal Ct I-131 112 8/30/2021 0 pCi/m3 131045003 Hatch Air Filters Gross Beta 112 8/30/2021 0.02093 pCi/m3 131044003 Hatch Milk Gamma K-40 GSP 4/13/2021 1443.3 pCi/L 129175001 Hatch Milk Gamma Be-7 GSP 4/13/2021 0 pCi/L 129175001 Hatch Milk Gamma Cs-134 GSP 4/13/2021 0 pCi/L 129175001 Hatch River Water Be-7 172 4/20/2021 0 pCi/L 129249002 Hatch River Water K-40 172 4/20/2021 0 pCi/L 129249002 Hatch Charcoal Ct I-131 112 9/7/2021 0 pCi/m3 131155003 Hatch Air Filters Gross Beta 112 9/7/2021 0.02313 pCi/m3 131154003 Hatch Air Filters Gross Beta 112 9/13/2021 0.03315 pCi/m3 131243003 Hatch Charcoal Ct I-131 112 9/13/2021 0 pCi/m3 131244003 Hatch Charcoal Ct I-131 112 9/20/2021 0 pCi/m3 131335003 Hatch Air Filters Gross Beta 112 9/20/2021 0.02061 pCi/m3 131334003 Hatch Air Qtr Comp I-131 112 9/27/2021 0 pCi/m3 131792003 Hatch River Water Co-58 172 4/20/2021 0 pCi/L 129249002 Hatch River Water Co-60 172 4/20/2021 0 pCi/L 129249002 Hatch River Water Cs-134 172 4/20/2021 0 pCi/L 129249002 Hatch Charcoal Ct I-131 112 9/27/2021 0 pCi/m3 131446003 Hatch Air Filters Gross Beta 112 9/27/2021 0.01616 pCi/m3 131444003 Hatch River Water Cs-137 172 4/20/2021 0 pCi/L 129249002 Hatch River Water Co-58 170 4/20/2021 0 pCi/L 129249001 Hatch River Water Co-60 170 4/20/2021 0 pCi/L 129249001 Hatch River Water Cs-134 170 4/20/2021 0 pCi/L 129249001 Hatch River Water Cs-137 170 4/20/2021 0 pCi/L 129249001 Hatch Charcoal Ct I-131 112 10/5/2021 0 pCi/m3 131547003 Hatch Air Filters Gross Beta 112 10/5/2021 0.04139 pCi/m3 131546003 Hatch Air Filters Gross Beta 112 10/11/2021 0.0172 pCi/m3 131630003 Hatch Charcoal Ct I-131 112 10/11/2021 0 pCi/m3 131631003 Hatch Air Filters Gross Beta 112 10/18/2021 0.02184 pCi/m3 131713003 Hatch Charcoal Ct I-131 112 10/18/2021 0 pCi/m3 131715003 Hatch Charcoal Ct I-131 112 10/25/2021 0 pCi/m3 131816003 Hatch Air Filters Gross Beta 112 10/25/2021 0.03314 pCi/m3 131815003 Hatch River Water Be-7 170 4/20/2021 0 pCi/L 129249001 Hatch River Water K-40 170 4/20/2021 0 pCi/L 129249001 Hatch Vegetation Cs-134 112 4/26/2021 0 pCi/Kg 129302002

Hatch Vegetation K-40 112 4/26/2021 5758.2 pCi/Kg 129302002 Hatch Milk Gamma I-131 GSP 1/5/2021 0 pCi/L 127930001 Hatch Charcoal Ct I-131 112 11/1/2021 0 pCi/m3 131848003 Hatch Air Filters Gross Beta 112 11/1/2021 0.01377 pCi/m3 131847003 Hatch Air Filters Gross Beta 112 11/8/2021 0.02235 pCi/m3 131943003 Hatch Charcoal Ct I-131 112 11/8/2021 0 pCi/m3 131944003 Hatch Charcoal Ct I-131 112 11/16/2021 0 pCi/m3 131996003 Hatch Air Filters Gross Beta 112 11/16/2021 0.02293 pCi/m3 131995003 Hatch Air Filters Gross Beta 112 11/22/2021 0.02146 pCi/m3 132024003 Hatch Charcoal Ct I-131 112 11/22/2021 0 pCi/m3 132025003 Hatch Air Filters Gross Beta 112 11/30/2021 0.02231 pCi/m3 132101003 Hatch Charcoal Ct I-131 112 11/30/2021 0 pCi/m3 132103003 Hatch Vegetation Be-7 112 4/26/2021 2687.7 pCi/Kg 129302002 Hatch Vegetation Cs-137 112 4/26/2021 0 pCi/Kg 129302002 Hatch Milk Gamma I-131 GSP 1/19/2021 0 pCi/L 128176001 Hatch Vegetation Cs-134 106 4/26/2021 0 pCi/Kg 129302003 Hatch Milk Gamma I-131 GSP 2/2/2021 0 pCi/L 128355001 Hatch Charcoal Ct I-131 112 12/6/2021 0 pCi/m3 132154003 Hatch Air Filters Gross Beta 112 12/6/2021 0.04246 pCi/m3 132153003 Hatch Charcoal Ct I-131 112 12/13/2021 0 pCi/m3 132204003 Hatch Air Filters Gross Beta 112 12/13/2021 0.02478 pCi/m3 132203003 Hatch Charcoal Ct I-131 112 12/20/2021 0 pCi/m3 132266003 Hatch Air Filters Gross Beta 112 12/20/2021 0.01547 pCi/m3 132264003 Hatch Charcoal Ct I-131 112 12/27/2021 0 pCi/m3 132328003 Hatch Vegetation Be-7 106 4/26/2021 1709.9 pCi/Kg 129302003 Hatch Air Qtr Comp I-131 112 12/27/2021 0 pCi/m3 132405003 Hatch Vegetation K-40 106 4/26/2021 4793 pCi/Kg 129302003 Hatch Vegetation Cs-137 106 4/26/2021 0 pCi/Kg 129302003 Hatch Air Filters Gross Beta 112 12/27/2021 0.02439 pCi/m3 132327003 Hatch Milk Gamma I-131 GSP 2/16/2021 0 pCi/L 128610001 Hatch Fish Cs-137 170 Bass 4/26/2021 0 pCi/Kg 129298002 Hatch Fish Cs-137 170 Mullet 4/26/2021 0 pCi/Kg 129298003 Hatch Milk Gamma I-131 GSP 3/2/2021 0 pCi/L 128758001 Hatch Fish Cs-137 170 Sucker 4/26/2021 0 pCi/Kg 129298001 Hatch Air Filters Gross Beta 116 1/4/2021 0.02324 pCi/m3 127931004 Hatch Charcoal Ct I-131 116 1/4/2021 0 pCi/m3 127932004 Hatch Air Filters Gross Beta 116 1/11/2021 0.02915 pCi/m3 128029004 Hatch Charcoal Ct I-131 116 1/11/2021 0 pCi/m3 128030004 Hatch Air Filters Gross Beta 116 1/19/2021 0.02421 pCi/m3 128177004 Hatch Charcoal Ct I-131 116 1/19/2021 0 pCi/m3 128178004 Hatch Air Filters Gross Beta 116 1/25/2021 0.02531 pCi/m3 128293004 Hatch Charcoal Ct I-131 116 1/25/2021 0 pCi/m3 128294004 Hatch Charcoal Ct I-131 116 2/1/2021 0 pCi/m3 128354004 Hatch Air Filters Gross Beta 116 2/1/2021 0.02109 pCi/m3 128353004 Hatch Charcoal Ct I-131 116 2/8/2021 0 pCi/m3 128430004 Hatch Air Filters Gross Beta 116 2/8/2021 0.0194 pCi/m3 128429004 Hatch Charcoal Ct I-131 116 2/15/2021 0 pCi/m3 128568004 Hatch Air Filters Gross Beta 116 2/15/2021 0.01186 pCi/m3 128567004 Hatch Charcoal Ct I-131 116 2/22/2021 0 pCi/m3 128649004 Hatch Air Filters Gross Beta 116 2/22/2021 0.02418 pCi/m3 128648004 Hatch Air Filters Gross Beta 116 3/1/2021 0.02522 pCi/m3 128759004 Hatch Charcoal Ct I-131 116 3/1/2021 0 pCi/m3 128760004 Hatch Charcoal Ct I-131 116 3/8/2021 0 pCi/m3 128843004 Hatch Air Filters Gross Beta 116 3/8/2021 0.02542 pCi/m3 128842004 Hatch Air Filters Gross Beta 116 3/15/2021 0.0286 pCi/m3 128928004 Hatch Charcoal Ct I-131 116 3/15/2021 0 pCi/m3 128929004 Hatch Air Filters Gross Beta 116 3/22/2021 0.02314 pCi/m3 128997004 Hatch Charcoal Ct I-131 116 3/22/2021 0 pCi/m3 128998004 Hatch Fish Cs-134 170 Bass 4/26/2021 0 pCi/Kg 129298002 Hatch Fish Co-60 170 Bass 4/26/2021 0 pCi/Kg 129298002 Hatch Fish Co-58 170 Bass 4/26/2021 0 pCi/Kg 129298002 Hatch Air Filters Gross Beta 116 3/29/2021 0.0176 pCi/m3 129040004 Hatch Air Qtr Comp I-131 116 3/29/2021 0 pCi/m3 129160004 Hatch Charcoal Ct I-131 116 3/29/2021 0 pCi/m3 129041004 Hatch Charcoal Ct I-131 116 4/5/2021 0 pCi/m3 129118004 Hatch Air Filters Gross Beta 116 4/5/2021 0.02657 pCi/m3 129117004 Hatch Air Filters Gross Beta 116 4/13/2021 0.03305 pCi/m3 129176004 Hatch Charcoal Ct I-131 116 4/13/2021 0 pCi/m3 129177004 Hatch Charcoal Ct I-131 116 4/19/2021 0 pCi/m3 129256004 Hatch Air Filters Gross Beta 116 4/19/2021 0.02703 pCi/m3 129255004 Hatch Air Filters Gross Beta 116 4/26/2021 0.02897 pCi/m3 129300004 Hatch Charcoal Ct I-131 116 4/26/2021 0 pCi/m3 129301004 Hatch Charcoal Ct I-131 116 5/3/2021 0 pCi/m3 129369004 Hatch Air Filters Gross Beta 116 5/3/2021 0.02708 pCi/m3 129368004 Hatch Air Filters Gross Beta 116 5/10/2021 0.02478 pCi/m3 129447004 Hatch Charcoal Ct I-131 116 5/10/2021 0 pCi/m3 129448004 Hatch Charcoal Ct I-131 116 5/18/2021 0 pCi/m3 129518004 Hatch Air Filters Gross Beta 116 5/18/2021 0.02136 pCi/m3 129517004 Hatch Charcoal Ct I-131 116 5/24/2021 0 pCi/m3 129599003 Hatch Air Filters Gross Beta 116 5/24/2021 0.02187 pCi/m3 129598003 Hatch Air Filters Gross Beta 116 6/1/2021 0.02694 pCi/m3 129659004 Hatch Charcoal Ct I-131 116 6/1/2021 0 pCi/m3 129660004 Hatch Air Filters Gross Beta 116 6/7/2021 0.01241 pCi/m3 129777004 Hatch Charcoal Ct I-131 116 6/7/2021 0 pCi/m3 129778004 Hatch Charcoal Ct I-131 116 6/14/2021 0 pCi/m3 129920004 Hatch Air Filters Gross Beta 116 6/14/2021 0.01453 pCi/m3 129919004 Hatch Charcoal Ct I-131 116 6/21/2021 0 pCi/m3 130021004

Hatch Air Filters Gross Beta 116 6/21/2021 0.02349 pCi/m3 130020004 Hatch Air Qtr Comp I-131 116 6/28/2021 0 pCi/m3 130248004 Hatch Fish K-40 170 Bass 4/26/2021 2966.8 pCi/Kg 129298002 Hatch Fish Be-7 170 Bass 4/26/2021 0 pCi/Kg 129298002 Hatch Fish Be-7 170 Mullet 4/26/2021 0 pCi/Kg 129298003 Hatch Air Filters Gross Beta 116 6/28/2021 0.01639 pCi/m3 130141004 Hatch Charcoal Ct I-131 116 6/28/2021 0 pCi/m3 130142004 Hatch Charcoal Ct I-131 116 7/6/2021 0 pCi/m3 130195004 Hatch Air Filters Gross Beta 116 7/6/2021 0.01746 pCi/m3 130194004 Hatch Charcoal Ct I-131 116 7/12/2021 0 pCi/m3 130293004 Hatch Air Filters Gross Beta 116 7/12/2021 0.01128 pCi/m3 130292004 Hatch Charcoal Ct I-131 116 7/19/2021 0 pCi/m3 130425004 Hatch Air Filters Gross Beta 116 7/19/2021 0.01858 pCi/m3 130424004 Hatch Air Filters Gross Beta 116 7/26/2021 0.01696 pCi/m3 130493004 Hatch Charcoal Ct I-131 116 7/26/2021 0 pCi/m3 130494004 Hatch Air Filters Gross Beta 116 8/2/2021 0.02847 pCi/m3 130588004 Hatch Charcoal Ct I-131 116 8/2/2021 0 pCi/m3 130589004 Hatch Air Filters Gross Beta 116 8/10/2021 0.01608 pCi/m3 130711004 Hatch Charcoal Ct I-131 116 8/10/2021 0 pCi/m3 130713004 Hatch Air Filters Gross Beta 116 8/16/2021 0.01576 pCi/m3 130841004 Hatch Charcoal Ct I-131 116 8/16/2021 0 pCi/m3 130842004 Hatch Air Filters Gross Beta 116 8/23/2021 0.01358 pCi/m3 130989004 Hatch Charcoal Ct I-131 116 8/23/2021 0 pCi/m3 130990004 Hatch Charcoal Ct I-131 116 8/30/2021 0 pCi/m3 131045004 Hatch Air Filters Gross Beta 116 8/30/2021 0.02285 pCi/m3 131044004 Hatch Charcoal Ct I-131 116 9/7/2021 0 pCi/m3 131155004 Hatch Air Filters Gross Beta 116 9/7/2021 0.02772 pCi/m3 131154004 Hatch Air Filters Gross Beta 116 9/13/2021 0.03106 pCi/m3 131243004 Hatch Charcoal Ct I-131 116 9/13/2021 0 pCi/m3 131244004 Hatch Air Filters Gross Beta 116 9/20/2021 0.02188 pCi/m3 131334004 Hatch Charcoal Ct I-131 116 9/20/2021 0 pCi/m3 131335004 Hatch Fish Co-58 170 Mullet 4/26/2021 0 pCi/Kg 129298003 Hatch Fish Co-60 170 Mullet 4/26/2021 0 pCi/Kg 129298003 Hatch Air Filters Gross Beta 116 9/27/2021 0.01475 pCi/m3 131444004 Hatch Air Qtr Comp I-131 116 9/27/2021 0 pCi/m3 131792004 Hatch Fish Cs-134 170 Mullet 4/26/2021 0 pCi/Kg 129298003 Hatch Charcoal Ct I-131 116 9/27/2021 0 pCi/m3 131446004 Hatch Charcoal Ct I-131 116 10/5/2021 0 pCi/m3 131547004 Hatch Air Filters Gross Beta 116 10/5/2021 0.04371 pCi/m3 131546004 Hatch Charcoal Ct I-131 116 10/11/2021 0 pCi/m3 131631004 Hatch Air Filters Gross Beta 116 10/11/2021 0.017 pCi/m3 131630004 Hatch Air Filters Gross Beta 116 10/18/2021 0.02041 pCi/m3 131713004 Hatch Charcoal Ct I-131 116 10/18/2021 0 pCi/m3 131715004 Hatch Air Filters Gross Beta 116 10/25/2021 0.03165 pCi/m3 131815004 Hatch Charcoal Ct I-131 116 10/25/2021 0 pCi/m3 131816004 Hatch Air Filters Gross Beta 116 11/1/2021 0.01356 pCi/m3 131847004 Hatch Charcoal Ct I-131 116 11/1/2021 0 pCi/m3 131848004 Hatch Air Filters Gross Beta 116 11/8/2021 0.02149 pCi/m3 131943004 Hatch Charcoal Ct I-131 116 11/8/2021 0 pCi/m3 131944004 Hatch Charcoal Ct I-131 116 11/16/2021 0 pCi/m3 131996004 Hatch Air Filters Gross Beta 116 11/16/2021 0.02473 pCi/m3 131995004 Hatch Air Filters Gross Beta 116 11/22/2021 0.01597 pCi/m3 132024004 Hatch Charcoal Ct I-131 116 11/22/2021 0 pCi/m3 132025004 Hatch Charcoal Ct I-131 116 11/30/2021 0 pCi/m3 132103004 Hatch Air Filters Gross Beta 116 11/30/2021 0.02478 pCi/m3 132101004 Hatch Charcoal Ct I-131 116 12/6/2021 0 pCi/m3 132154004 Hatch Air Filters Gross Beta 116 12/6/2021 0.04183 pCi/m3 132153004 Hatch Charcoal Ct I-131 116 12/13/2021 0 pCi/m3 132204004 Hatch Air Filters Gross Beta 116 12/13/2021 0.02706 pCi/m3 132203004 Hatch Air Filters Gross Beta 116 12/20/2021 0.01413 pCi/m3 132264004 Hatch Charcoal Ct I-131 116 12/20/2021 0 pCi/m3 132266004 Hatch Air Qtr Comp I-131 116 12/27/2021 0 pCi/m3 132405004 Hatch Air Filters Gross Beta 116 12/27/2021 0.02117 pCi/m3 132327004 Hatch Fish K-40 170 Mullet 4/26/2021 3293.3 pCi/Kg 129298003 Hatch Fish Co-58 170 Sucker 4/26/2021 0 pCi/Kg 129298001 Hatch Charcoal Ct I-131 116 12/27/2021 0 pCi/m3 132328004 Hatch Fish Co-60 170 Sucker 4/26/2021 0 pCi/Kg 129298001 Hatch River Water Fe-59 170 1/26/2021 0 pCi/L 128295001 Hatch Fish Cs-134 170 Sucker 4/26/2021 0 pCi/Kg 129298001 Hatch Fish Be-7 170 Sucker 4/26/2021 0 pCi/Kg 129298001 Hatch River Water Zn-65 170 1/26/2021 0 pCi/L 128295001 Hatch River Water Zr-95 170 1/26/2021 0 pCi/L 128295001 Hatch River Water Nb-95 170 1/26/2021 0 pCi/L 128295001 Hatch River Water I-131 170 1/26/2021 0 pCi/L 128295001 Hatch Fish K-40 170 Sucker 4/26/2021 3557.9 pCi/Kg 129298001 Hatch Vegetation Cs-134 416 4/26/2021 0 pCi/Kg 129302001 Hatch River Water La-140 170 1/26/2021 0 pCi/L 128295001 Hatch Vegetation Be-7 416 4/26/2021 14297 pCi/Kg 129302001 Hatch Vegetation K-40 416 4/26/2021 3767.6 pCi/Kg 129302001 Hatch River Water Mn-54 170 1/26/2021 0 pCi/L 128295001 Hatch River Water Fe-59 170 2/23/2021 0 pCi/L 128650001 Hatch Vegetation Cs-137 416 4/26/2021 52.823 pCi/Kg 129302001 Hatch Fish Cs-137 172 Bass 4/26/2021 0 pCi/Kg 129298005 Hatch River Water Zn-65 170 2/23/2021 0 pCi/L 128650001 Hatch River Water Zr-95 170 2/23/2021 0 pCi/L 128650001 Hatch River Water Nb-95 170 2/23/2021 0 pCi/L 128650001 Hatch River Water I-131 170 2/23/2021 0 pCi/L 128650001

Hatch Fish Cs-137 172 Mullet 4/26/2021 0 pCi/Kg 129298006 Hatch Fish Cs-137 172 Sucker 4/26/2021 0 pCi/Kg 129298004 Hatch River Water La-140 170 2/23/2021 0 pCi/L 128650001 Hatch Fish Be-7 172 Bass 4/26/2021 0 pCi/Kg 129298005 Hatch Fish Cs-134 172 Bass 4/26/2021 0 pCi/Kg 129298005 Hatch River Water Mn-54 170 2/23/2021 0 pCi/L 128650001 Hatch H-3 Water Tritium 170 3/23/2021 0 pCi/L 129222001 Hatch River Water I-131 170 3/23/2021 0 pCi/L 128987001 Hatch Fish Co-60 172 Bass 4/26/2021 0 pCi/Kg 129298005 Hatch Fish Co-58 172 Bass 4/26/2021 0 pCi/Kg 129298005 Hatch River Water La-140 170 3/23/2021 0 pCi/L 128987001 Hatch Fish K-40 172 Bass 4/26/2021 3328.7 pCi/Kg 129298005 Hatch Fish K-40 172 Mullet 4/26/2021 3666.1 pCi/Kg 129298006 Hatch River Water Mn-54 170 3/23/2021 0 pCi/L 128987001 Hatch River Water Fe-59 170 3/23/2021 0 pCi/L 128987001 Hatch Fish Be-7 172 Mullet 4/26/2021 0 pCi/Kg 129298006 Hatch Fish Cs-134 172 Mullet 4/26/2021 0 pCi/Kg 129298006 Hatch River Water Zn-65 170 3/23/2021 0 pCi/L 128987001 Hatch River Water Zr-95 170 3/23/2021 0 pCi/L 128987001 Hatch River Water Nb-95 170 3/23/2021 0 pCi/L 128987001 Hatch River Water Fe-59 170 4/20/2021 0 pCi/L 129249001 Hatch Fish Co-60 172 Mullet 4/26/2021 0 pCi/Kg 129298006 Hatch Fish Co-58 172 Mullet 4/26/2021 0 pCi/Kg 129298006 Hatch River Water Zn-65 170 4/20/2021 0 pCi/L 129249001 Hatch River Water Zr-95 170 4/20/2021 0 pCi/L 129249001 Hatch River Water Nb-95 170 4/20/2021 0 pCi/L 129249001 Hatch River Water I-131 170 4/20/2021 0 pCi/L 129249001 Hatch Fish Be-7 172 Sucker 4/26/2021 0 pCi/Kg 129298004 Hatch Fish Cs-134 172 Sucker 4/26/2021 0 pCi/Kg 129298004 Hatch River Water La-140 170 4/20/2021 0 pCi/L 129249001 Hatch Fish Co-60 172 Sucker 4/26/2021 0 pCi/Kg 129298004 Hatch Fish Co-58 172 Sucker 4/26/2021 0 pCi/Kg 129298004 Hatch River Water Mn-54 170 4/20/2021 0 pCi/L 129249001 Hatch Fish K-40 172 Sucker 4/26/2021 4091.3 pCi/Kg 129298004 Hatch Milk Gamma Cs-137 GSP 4/27/2021 0 pCi/L 129310001 Hatch Milk Gamma Be-7 GSP 4/27/2021 0 pCi/L 129310001 Hatch Milk Gamma K-40 GSP 4/27/2021 448.13 pCi/L 129310001 Hatch Milk Gamma Cs-134 GSP 4/27/2021 0 pCi/L 129310001 Hatch River Water Nb-95 170 5/17/2021 0 pCi/L 129519001 Hatch River Water I-131 170 5/17/2021 0 pCi/L 129519001 Hatch Sediment K-40 170 5/4/2021 5260.3 pCi/Kg 129370001 Hatch Sediment Co-58 170 5/4/2021 0 pCi/Kg 129370001 Hatch River Water La-140 170 5/17/2021 0 pCi/L 129519001 Hatch Sediment Be-7 170 5/4/2021 0 pCi/Kg 129370001 Hatch Sediment Cs-137 170 5/4/2021 0 pCi/Kg 129370001 Hatch River Water Zr-95 170 5/17/2021 0 pCi/L 129519001 Hatch River Water Zn-65 170 5/17/2021 0 pCi/L 129519001 Hatch Sediment Cs-134 170 5/4/2021 0 pCi/Kg 129370001 Hatch Sediment Co-60 170 5/4/2021 0 pCi/Kg 129370001 Hatch River Water Fe-59 170 5/17/2021 0 pCi/L 129519001 Hatch River Water Mn-54 170 5/17/2021 0 pCi/L 129519001 Hatch River Water I-131 170 6/29/2021 0 pCi/L 130143001 Hatch Sediment K-40 172 5/4/2021 5553.9 pCi/Kg 129370002 Hatch Sediment Be-7 172 5/4/2021 207.14 pCi/Kg 129370002 Hatch River Water La-140 170 6/29/2021 0 pCi/L 130143001 Hatch Sediment Cs-134 172 5/4/2021 0 pCi/Kg 129370002 Hatch Sediment Co-60 172 5/4/2021 0 pCi/Kg 129370002 Hatch River Water Mn-54 170 6/29/2021 0 pCi/L 130143001 Hatch River Water Fe-59 170 6/29/2021 0 pCi/L 130143001 Hatch Sediment Cs-137 172 5/4/2021 0 pCi/Kg 129370002 Hatch Sediment Co-58 172 5/4/2021 0 pCi/Kg 129370002 Hatch River Water Zn-65 170 6/29/2021 0 pCi/L 130143001 Hatch River Water Zr-95 170 6/29/2021 0 pCi/L 130143001 Hatch River Water Nb-95 170 6/29/2021 0 pCi/L 130143001 Hatch H-3 Water Tritium 170 6/29/2021 0 pCi/L 130440001 Hatch River Water Fe-59 170 7/26/2021 0 pCi/L 130495001 Hatch Milk Gamma Cs-137 GSP 5/11/2021 0 pCi/L 129443001 Hatch Milk Gamma Be-7 GSP 5/11/2021 0 pCi/L 129443001 Hatch River Water Zn-65 170 7/26/2021 0 pCi/L 130495001 Hatch River Water Zr-95 170 7/26/2021 0 pCi/L 130495001 Hatch River Water I-131 170 7/26/2021 0 pCi/L 130495001 Hatch River Water Nb-95 170 7/26/2021 0 pCi/L 130495001 Hatch Milk Gamma Cs-134 GSP 5/11/2021 0 pCi/L 129443001 Hatch Milk Gamma K-40 GSP 5/11/2021 889.98 pCi/L 129443001 Hatch River Water La-140 170 7/26/2021 0 pCi/L 130495001 Hatch River Water Be-7 172 5/17/2021 0 pCi/L 129519002 Hatch River Water K-40 172 5/17/2021 0 pCi/L 129519002 Hatch River Water Mn-54 170 7/26/2021 0 pCi/L 130495001 Hatch River Water I-131 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Cs-137 172 5/17/2021 0 pCi/L 129519002 Hatch River Water Cs-134 172 5/17/2021 0 pCi/L 129519002 Hatch River Water Co-60 172 5/17/2021 0 pCi/L 129519002 Hatch River Water La-140 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Co-58 172 5/17/2021 0 pCi/L 129519002 Hatch River Water Mn-54 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Fe-59 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Cs-134 170 5/17/2021 0 pCi/L 129519001

Hatch River Water Cs-137 170 5/17/2021 0 pCi/L 129519001 Hatch River Water Zn-65 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Zr-95 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Nb-95 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Be-7 170 5/17/2021 0 pCi/L 129519001 Hatch River Water K-40 170 5/17/2021 0 pCi/L 129519001 Hatch River Water Zn-65 170 9/20/2021 0 pCi/L 131372001 Hatch River Water Zr-95 170 9/20/2021 0 pCi/L 131372001 Hatch River Water Nb-95 170 9/20/2021 0 pCi/L 131372001 Hatch River Water I-131 170 9/20/2021 0 pCi/L 131372001 Hatch River Water Co-60 170 5/17/2021 0 pCi/L 129519001 Hatch River Water Co-58 170 5/17/2021 0 pCi/L 129519001 Hatch River Water La-140 170 9/20/2021 0 pCi/L 131372001 Hatch Milk Gamma Cs-137 GSP 5/25/2021 0 pCi/L 129603001 Hatch Milk Gamma K-40 GSP 5/25/2021 1475 pCi/L 129603001 Hatch River Water Mn-54 170 9/20/2021 0 pCi/L 131372001 Hatch River Water Fe-59 170 9/20/2021 0 pCi/L 131372001 Hatch H-3 Water Tritium 170 9/20/2021 115 pCi/L 131709001 Hatch River Water Mn-54 170 10/18/2021 0 pCi/L 131691001 Hatch River Water Fe-59 170 10/18/2021 0 pCi/L 131691001 Hatch Milk Gamma Be-7 GSP 5/25/2021 0 pCi/L 129603001 Hatch Milk Gamma Cs-134 GSP 5/25/2021 0 pCi/L 129603001 Hatch River Water Zn-65 170 10/18/2021 0 pCi/L 131691001 Hatch River Water Zr-95 170 10/18/2021 0 pCi/L 131691001 Hatch River Water Nb-95 170 10/18/2021 0 pCi/L 131691001 Hatch Vegetation K-40 416 6/1/2021 3243.5 pCi/Kg 129661001 Hatch River Water I-131 170 10/18/2021 0 pCi/L 131691001 Hatch Vegetation Be-7 416 6/1/2021 2663.8 pCi/Kg 129661001 Hatch Vegetation Cs-134 416 6/1/2021 0 pCi/Kg 129661001 Hatch River Water La-140 170 10/18/2021 0 pCi/L 131691001 Hatch Vegetation Cs-137 416 6/1/2021 0 pCi/Kg 129661001 Hatch Vegetation Be-7 112 6/1/2021 1407.6 pCi/Kg 129661002 Hatch Vegetation K-40 112 6/1/2021 5477 pCi/Kg 129661002 Hatch Vegetation Cs-134 112 6/1/2021 0 pCi/Kg 129661002 Hatch Vegetation Cs-137 112 6/1/2021 0 pCi/Kg 129661002 Hatch River Water Nb-95 170 11/30/2021 0 pCi/L 132099001 Hatch River Water I-131 170 11/30/2021 0 pCi/L 132099001 Hatch Vegetation Cs-134 106 6/1/2021 0 pCi/Kg 129661003 Hatch Vegetation Be-7 106 6/1/2021 2792.1 pCi/Kg 129661003 Hatch River Water La-140 170 11/30/2021 0 pCi/L 132099001 Hatch Vegetation K-40 106 6/1/2021 6875.9 pCi/Kg 129661003 Hatch Vegetation Cs-137 106 6/1/2021 36.97 pCi/Kg 129661003 Hatch River Water Zr-95 170 11/30/2021 0 pCi/L 132099001 Hatch River Water Zn-65 170 11/30/2021 0 pCi/L 132099001 Hatch Milk Gamma Cs-137 GSP 6/7/2021 0 pCi/L 129794001 Hatch River Water Fe-59 170 11/30/2021 0 pCi/L 132099001 Hatch Milk Gamma Cs-134 GSP 6/7/2021 0 pCi/L 129794001 Hatch River Water Mn-54 170 11/30/2021 0 pCi/L 132099001 Hatch River Water I-131 170 12/28/2021 0 pCi/L 132308001 Hatch Milk Gamma K-40 GSP 6/7/2021 1436.6 pCi/L 129794001 Hatch Milk Gamma Be-7 GSP 6/7/2021 0 pCi/L 129794001 Hatch River Water La-140 170 12/28/2021 0 pCi/L 132308001 Hatch Milk Gamma Cs-137 GSP 6/21/2021 0 pCi/L 130019001 Hatch Milk Gamma Cs-134 GSP 6/21/2021 0 pCi/L 130019001 Hatch River Water Mn-54 170 12/28/2021 0 pCi/L 132308001 Hatch River Water Fe-59 170 12/28/2021 0 pCi/L 132308001 Hatch Milk Gamma K-40 GSP 6/21/2021 1310.7 pCi/L 130019001 Hatch Milk Gamma Be-7 GSP 6/21/2021 0 pCi/L 130019001 Hatch River Water Zn-65 170 12/28/2021 0 pCi/L 132308001 Hatch River Water Zr-95 170 12/28/2021 0 pCi/L 132308001 Hatch River Water Nb-95 170 12/28/2021 0 pCi/L 132308001 Hatch Vegetation K-40 416 6/28/2021 1886.2 pCi/Kg 130144001 Hatch Vegetation Be-7 416 6/28/2021 503.42 pCi/Kg 130144001 Hatch Fish Mn-54 170 Common Carp 10/25/2021 0 pCi/Kg 131796003 Hatch Fish Fe-59 170 Common Carp 10/25/2021 0 pCi/Kg 131796003 Hatch Vegetation Cs-134 416 6/28/2021 0 pCi/Kg 130144001 Hatch Vegetation Cs-137 416 6/28/2021 0 pCi/Kg 130144001 Hatch Fish Zn-65 170 Common Carp 10/25/2021 0 pCi/Kg 131796003 Hatch Air Qtr Comp Cs-134 116 6/28/2021 0 pCi/m3 130248004 Hatch Milk Gamma I-131 GSP 3/16/2021 0 pCi/L 128930001 Hatch Milk Gamma I-131 GSP 3/30/2021 0 pCi/L 129043001 Hatch Air Qtr Comp Cs-137 116 6/28/2021 0 pCi/m3 130248004 Hatch Fish Zn-65 170 Bass 4/26/2021 0 pCi/Kg 129298002 Hatch Air Qtr Comp Be-7 116 6/28/2021 0.08581 pCi/m3 130248004 Hatch Air Qtr Comp Cs-134 112 6/28/2021 0 pCi/m3 130248003 Hatch Fish Fe-59 170 Bass 4/26/2021 0 pCi/Kg 129298002 Hatch Air Qtr Comp Cs-137 112 6/28/2021 0 pCi/m3 130248003 Hatch Fish Mn-54 170 Bass 4/26/2021 0 pCi/Kg 129298002 Hatch Air Qtr Comp Be-7 112 6/28/2021 0.112 pCi/m3 130248003 Hatch Vegetation Be-7 112 6/28/2021 1340.8 pCi/Kg 130144002 Hatch Vegetation K-40 112 6/28/2021 3300.5 pCi/Kg 130144002 Hatch Milk Gamma I-131 GSP 4/13/2021 0 pCi/L 129175001 Hatch Vegetation Cs-134 112 6/28/2021 0 pCi/Kg 130144002 Hatch Fish Zn-65 170 Bass 10/25/2021 0 pCi/Kg 131796002 Hatch Vegetation Cs-137 112 6/28/2021 0 pCi/Kg 130144002 Hatch Air Qtr Comp Be-7 107 6/28/2021 0.08936 pCi/m3 130248002 Hatch Fish Fe-59 170 Bass 10/25/2021 0 pCi/Kg 131796002

Hatch Fish Mn-54 170 Bass 10/25/2021 0 pCi/Kg 131796002 Hatch Air Qtr Comp Cs-137 107 6/28/2021 0 pCi/m3 130248002 Hatch Fish Fe-59 170 Catfish 10/25/2021 0 pCi/Kg 131796001 Hatch Fish Mn-54 170 Catfish 10/25/2021 0 pCi/Kg 131796001 Hatch Air Qtr Comp Cs-134 107 6/28/2021 0 pCi/m3 130248002 Hatch Vegetation Cs-134 106 6/28/2021 0 pCi/Kg 130144003 Hatch Fish Zn-65 170 Catfish 10/25/2021 0 pCi/Kg 131796001 Hatch Vegetation Be-7 106 6/28/2021 2551.8 pCi/Kg 130144003 Hatch Milk Gamma I-131 GSP 4/27/2021 0 pCi/L 129310001 Hatch Vegetation K-40 106 6/28/2021 4358.3 pCi/Kg 130144003 Hatch Vegetation Cs-137 106 6/28/2021 0 pCi/Kg 130144003 Hatch Fish Fe-59 170 Mullet 4/26/2021 0 pCi/Kg 129298003 Hatch Air Qtr Comp Cs-134 309 6/28/2021 0 pCi/m3 130248006 Hatch Air Qtr Comp Cs-137 309 6/28/2021 0 pCi/m3 130248006 Hatch Fish Zn-65 170 Mullet 4/26/2021 0 pCi/Kg 129298003 Hatch Air Qtr Comp Be-7 309 6/28/2021 0.1094 pCi/m3 130248006 Hatch Air Qtr Comp Cs-137 304 6/28/2021 0 pCi/m3 130248005 Hatch Milk Gamma I-131 GSP 5/11/2021 0 pCi/L 129443001 Hatch Fish Mn-54 170 Mullet 4/26/2021 0 pCi/Kg 129298003 Hatch Fish Mn-54 170 Sucker 4/26/2021 0 pCi/Kg 129298001 Hatch Fish Fe-59 170 Sucker 4/26/2021 0 pCi/Kg 129298001 Hatch Air Qtr Comp Cs-134 304 6/28/2021 0 pCi/m3 130248005 Hatch Air Qtr Comp Be-7 304 6/28/2021 0.1007 pCi/m3 130248005 Hatch Fish Zn-65 170 Sucker 4/26/2021 0 pCi/Kg 129298001 Hatch Air Qtr Comp Cs-134 103 6/28/2021 0 pCi/m3 130248001 Hatch Air Qtr Comp Cs-137 103 6/28/2021 0 pCi/m3 130248001 Hatch Milk Gamma I-131 GSP 5/25/2021 0 pCi/L 129603001 Hatch Air Qtr Comp Be-7 103 6/28/2021 0.09741 pCi/m3 130248001 Hatch River Water Zr-95 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Nb-95 172 1/26/2021 0 pCi/L 128295002 Hatch River Water I-131 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Co-58 172 6/29/2021 0 pCi/L 130143002 Hatch River Water Co-60 172 6/29/2021 0 pCi/L 130143002 Hatch River Water La-140 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Cs-134 172 6/29/2021 0 pCi/L 130143002 Hatch River Water Cs-137 172 6/29/2021 0 pCi/L 130143002 Hatch River Water Mn-54 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Fe-59 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Be-7 172 6/29/2021 0 pCi/L 130143002 Hatch River Water K-40 172 6/29/2021 0 pCi/L 130143002 Hatch River Water Zn-65 172 1/26/2021 0 pCi/L 128295002 Hatch River Water Cs-134 170 6/29/2021 0 pCi/L 130143001 Hatch River Water Cs-137 170 6/29/2021 0 pCi/L 130143001 Hatch River Water Be-7 170 6/29/2021 0 pCi/L 130143001 Hatch River Water La-140 172 2/23/2021 0 pCi/L 128650002 Hatch River Water K-40 170 6/29/2021 0 pCi/L 130143001 Hatch River Water Mn-54 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Fe-59 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Co-58 170 6/29/2021 0 pCi/L 130143001 Hatch River Water Co-60 170 6/29/2021 0 pCi/L 130143001 Hatch River Water Zn-65 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Zr-95 172 2/23/2021 0 pCi/L 128650002 Hatch River Water Nb-95 172 2/23/2021 0 pCi/L 128650002 Hatch River Water I-131 172 2/23/2021 0 pCi/L 128650002 Hatch Milk Gamma Cs-137 GSP 7/6/2021 0 pCi/L 130193001 Hatch Milk Gamma Cs-134 GSP 7/6/2021 0 pCi/L 130193001 Hatch River Water Mn-54 172 3/23/2021 0 pCi/L 128987002 Hatch River Water Fe-59 172 3/23/2021 0 pCi/L 128987002 Hatch Milk Gamma Be-7 GSP 7/6/2021 0 pCi/L 130193001 Hatch Milk Gamma K-40 GSP 7/6/2021 338.63 pCi/L 130193001 Hatch River Water Zn-65 172 3/23/2021 0 pCi/L 128987002 Hatch River Water Zr-95 172 3/23/2021 0 pCi/L 128987002 Hatch River Water Nb-95 172 3/23/2021 0 pCi/L 128987002 Hatch River Water I-131 172 3/23/2021 0 pCi/L 128987002 Hatch Milk Gamma Cs-137 GSP 7/20/2021 0 pCi/L 130427001 Hatch Milk Gamma Be-7 GSP 7/20/2021 0 pCi/L 130427001 Hatch River Water La-140 172 3/23/2021 0 pCi/L 128987002 Hatch H-3 Water Tritium 172 3/23/2021 98.3 pCi/L 129222002 Hatch River Water La-140 172 4/20/2021 0 pCi/L 129249002 Hatch Milk Gamma K-40 GSP 7/20/2021 411.75 pCi/L 130427001 Hatch Milk Gamma Cs-134 GSP 7/20/2021 0 pCi/L 130427001 Hatch River Water Mn-54 172 4/20/2021 0 pCi/L 129249002 Hatch River Water Fe-59 172 4/20/2021 0 pCi/L 129249002 Hatch River Water Cs-134 172 7/26/2021 0 pCi/L 130495002 Hatch River Water Cs-137 172 7/26/2021 0 pCi/L 130495002 Hatch River Water Zn-65 172 4/20/2021 0 pCi/L 129249002 Hatch River Water Zr-95 172 4/20/2021 0 pCi/L 129249002 Hatch River Water Nb-95 172 4/20/2021 0 pCi/L 129249002 Hatch River Water I-131 172 4/20/2021 0 pCi/L 129249002 Hatch River Water Be-7 172 7/26/2021 0 pCi/L 130495002 Hatch River Water K-40 172 7/26/2021 0 pCi/L 130495002 Hatch River Water Co-58 172 7/26/2021 0 pCi/L 130495002 Hatch River Water Co-60 172 7/26/2021 0 pCi/L 130495002 Hatch River Water Co-58 170 7/26/2021 0 pCi/L 130495001 Hatch River Water Co-60 170 7/26/2021 0 pCi/L 130495001 Hatch River Water Cs-134 170 7/26/2021 0 pCi/L 130495001 Hatch River Water Cs-137 170 7/26/2021 0 pCi/L 130495001

Hatch River Water La-140 172 5/17/2021 0 pCi/L 129519002 Hatch River Water Be-7 170 7/26/2021 0 pCi/L 130495001 Hatch River Water K-40 170 7/26/2021 0 pCi/L 130495001 Hatch River Water Zr-95 172 5/17/2021 0 pCi/L 129519002 Hatch River Water Nb-95 172 5/17/2021 0 pCi/L 129519002 Hatch River Water I-131 172 5/17/2021 0 pCi/L 129519002 Hatch River Water Mn-54 172 5/17/2021 0 pCi/L 129519002 Hatch Vegetation Cs-134 112 7/26/2021 0 pCi/Kg 130496002 Hatch Vegetation Be-7 112 7/26/2021 2065.4 pCi/Kg 130496002 Hatch River Water Zn-65 172 5/17/2021 0 pCi/L 129519002 Hatch Vegetation K-40 112 7/26/2021 3941.2 pCi/Kg 130496002 Hatch Vegetation Cs-137 112 7/26/2021 0 pCi/Kg 130496002 Hatch River Water Fe-59 172 5/17/2021 0 pCi/L 129519002 Hatch H-3 Water Tritium 172 6/29/2021 0 pCi/L 130440002 Hatch River Water Mn-54 172 6/29/2021 0 pCi/L 130143002 Hatch River Water Fe-59 172 6/29/2021 0 pCi/L 130143002 Hatch Vegetation K-40 106 7/26/2021 3270.1 pCi/Kg 130496003 Hatch Vegetation Be-7 106 7/26/2021 2876.8 pCi/Kg 130496003 Hatch River Water Zn-65 172 6/29/2021 0 pCi/L 130143002 Hatch River Water Zr-95 172 6/29/2021 0 pCi/L 130143002 Hatch River Water Nb-95 172 6/29/2021 0 pCi/L 130143002 Hatch River Water I-131 172 6/29/2021 0 pCi/L 130143002 Hatch Vegetation Cs-134 106 7/26/2021 0 pCi/Kg 130496003 Hatch Vegetation Cs-137 106 7/26/2021 34.38 pCi/Kg 130496003 Hatch River Water La-140 172 6/29/2021 0 pCi/L 130143002 Hatch Vegetation Cs-134 416 7/26/2021 0 pCi/Kg 130496001 Hatch Vegetation Be-7 416 7/26/2021 3107.5 pCi/Kg 130496001 Hatch River Water Zr-95 172 7/26/2021 0 pCi/L 130495002 Hatch River Water Nb-95 172 7/26/2021 0 pCi/L 130495002 Hatch River Water I-131 172 7/26/2021 0 pCi/L 130495002 Hatch Vegetation K-40 416 7/26/2021 3956.7 pCi/Kg 130496001 Hatch Vegetation Cs-137 416 7/26/2021 0 pCi/Kg 130496001 Hatch River Water La-140 172 7/26/2021 0 pCi/L 130495002 Hatch Milk Gamma Cs-137 GSP 8/3/2021 0 pCi/L 130591001 Hatch Milk Gamma Be-7 GSP 8/3/2021 0 pCi/L 130591001 Hatch River Water Mn-54 172 7/26/2021 0 pCi/L 130495002 Hatch River Water Fe-59 172 7/26/2021 0 pCi/L 130495002 Hatch Milk Gamma Cs-134 GSP 8/3/2021 0 pCi/L 130591001 Hatch Milk Gamma K-40 GSP 8/3/2021 408.1 pCi/L 130591001 Hatch River Water Zn-65 172 7/26/2021 0 pCi/L 130495002 Hatch River Water La-140 172 8/23/2021 0 pCi/L 130951002 Hatch Milk Gamma Cs-137 GSP 8/17/2021 0 pCi/L 130840001 Hatch Milk Gamma K-40 GSP 8/17/2021 2171.2 pCi/L 130840001 Hatch River Water Mn-54 172 8/23/2021 0 pCi/L 130951002 Hatch River Water Fe-59 172 8/23/2021 0 pCi/L 130951002 Hatch Milk Gamma Be-7 GSP 8/17/2021 0 pCi/L 130840001 Hatch Milk Gamma Cs-134 GSP 8/17/2021 0 pCi/L 130840001 Hatch River Water Zn-65 172 8/23/2021 0 pCi/L 130951002 Hatch River Water Zr-95 172 8/23/2021 0 pCi/L 130951002 Hatch River Water Nb-95 172 8/23/2021 0 pCi/L 130951002 Hatch River Water I-131 172 8/23/2021 0 pCi/L 130951002 Hatch River Water Be-7 172 8/23/2021 0 pCi/L 130951002 Hatch River Water K-40 172 8/23/2021 0 pCi/L 130951002 Hatch River Water Co-58 172 8/23/2021 0 pCi/L 130951002 Hatch River Water Co-60 172 8/23/2021 0 pCi/L 130951002 Hatch River Water La-140 172 9/21/2021 0 pCi/L 131372002 Hatch River Water Cs-134 172 8/23/2021 0 pCi/L 130951002 Hatch River Water Cs-137 172 8/23/2021 0 pCi/L 130951002 Hatch River Water Mn-54 172 9/21/2021 0 pCi/L 131372002 Hatch River Water Fe-59 172 9/21/2021 0 pCi/L 131372002 Hatch River Water Cs-134 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Cs-137 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Zn-65 172 9/21/2021 0 pCi/L 131372002 Hatch River Water Zr-95 172 9/21/2021 0 pCi/L 131372002 Hatch River Water I-131 172 9/21/2021 0 pCi/L 131372002 Hatch River Water Nb-95 172 9/21/2021 0 pCi/L 131372002 Hatch H-3 Water Tritium 172 9/21/2021 356 pCi/L 131709002 Hatch River Water Be-7 170 8/23/2021 0 pCi/L 130951001 Hatch River Water K-40 170 8/23/2021 0 pCi/L 130951001 Hatch River Water I-131 172 10/18/2021 0 pCi/L 131691002 Hatch River Water Nb-95 172 10/18/2021 0 pCi/L 131691002 Hatch River Water Zr-95 172 10/18/2021 0 pCi/L 131691002 Hatch River Water Zn-65 172 10/18/2021 0 pCi/L 131691002 Hatch River Water Co-58 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Co-60 170 8/23/2021 0 pCi/L 130951001 Hatch River Water Fe-59 172 10/18/2021 0 pCi/L 131691002 Hatch River Water Mn-54 172 10/18/2021 0 pCi/L 131691002 Hatch River Water La-140 172 10/18/2021 0 pCi/L 131691002 Hatch Vegetation K-40 112 8/30/2021 3916.1 pCi/Kg 131046002 Hatch Vegetation Be-7 112 8/30/2021 2832.7 pCi/Kg 131046002 Hatch Vegetation Cs-134 112 8/30/2021 0 pCi/Kg 131046002 Hatch Vegetation Cs-137 112 8/30/2021 0 pCi/Kg 131046002 Hatch Vegetation K-40 106 8/30/2021 3065 pCi/Kg 131046003 Hatch Vegetation Be-7 106 8/30/2021 3476.4 pCi/Kg 131046003 Hatch Vegetation Cs-134 106 8/30/2021 0 pCi/Kg 131046003 Hatch Vegetation Cs-137 106 8/30/2021 0 pCi/Kg 131046003 Hatch Vegetation Cs-134 416 8/30/2021 0 pCi/Kg 131046001

Hatch Vegetation Be-7 416 8/30/2021 1670.7 pCi/Kg 131046001 Hatch Vegetation K-40 416 8/30/2021 3999.9 pCi/Kg 131046001 Hatch Vegetation Cs-137 416 8/30/2021 0 pCi/Kg 131046001 Hatch River Water Mn-54 172 12/1/2021 0 pCi/L 132099002 Hatch River Water Fe-59 172 12/1/2021 0 pCi/L 132099002 Hatch River Water Zr-95 172 12/1/2021 0 pCi/L 132099002 Hatch Milk Gamma Cs-137 GSP 8/31/2021 0 pCi/L 131042001 Hatch Milk Gamma Be-7 GSP 8/31/2021 0 pCi/L 131042001 Hatch River Water Zn-65 172 12/1/2021 0 pCi/L 132099002 Hatch River Water Nb-95 172 12/1/2021 0 pCi/L 132099002 Hatch River Water I-131 172 12/1/2021 0 pCi/L 132099002 Hatch Milk Gamma K-40 GSP 8/31/2021 342.28 pCi/L 131042001 Hatch Milk Gamma Cs-134 GSP 8/31/2021 0 pCi/L 131042001 Hatch River Water La-140 172 12/1/2021 0 pCi/L 132099002 Hatch Milk Gamma Cs-137 GSP 9/14/2021 0 pCi/L 131224001 Hatch Milk Gamma Be-7 GSP 9/14/2021 0 pCi/L 131224001 Hatch Milk Gamma Cs-134 GSP 9/14/2021 0 pCi/L 131224001 Hatch River Water Mn-54 172 12/28/2021 0 pCi/L 132308002 Hatch River Water Fe-59 172 12/28/2021 0 pCi/L 132308002 Hatch Milk Gamma K-40 GSP 9/14/2021 341.17 pCi/L 131224001 Hatch River Water Co-58 170 9/20/2021 0 pCi/L 131372001 Hatch River Water Zn-65 172 12/28/2021 0 pCi/L 132308002 Hatch River Water Zr-95 172 12/28/2021 0 pCi/L 132308002 Hatch River Water Nb-95 172 12/28/2021 0 pCi/L 132308002 Hatch River Water I-131 172 12/28/2021 0 pCi/L 132308002 Hatch River Water Co-60 170 9/20/2021 0 pCi/L 131372001 Hatch River Water Cs-137 170 9/20/2021 0 pCi/L 131372001 Hatch River Water La-140 172 12/28/2021 0 pCi/L 132308002 Hatch Fish Mn-54 172 Common Carp 10/25/2021 0 pCi/Kg 131796005 Hatch River Water Cs-134 170 9/20/2021 0 pCi/L 131372001 Hatch River Water Be-7 170 9/20/2021 0 pCi/L 131372001 Hatch Milk Gamma I-131 GSP 6/7/2021 0 pCi/L 129794001 Hatch River Water K-40 170 9/20/2021 0 pCi/L 131372001 Hatch Fish Zn-65 172 Common Carp 10/25/2021 0 pCi/Kg 131796005 Hatch River Water Cs-134 172 9/21/2021 0 pCi/L 131372002 Hatch River Water Cs-137 172 9/21/2021 0 pCi/L 131372002 Hatch Fish Fe-59 172 Common Carp 10/25/2021 0 pCi/Kg 131796005 Hatch Fish Mn-54 172 Bass 4/26/2021 0 pCi/Kg 129298005 Hatch River Water Be-7 172 9/21/2021 0 pCi/L 131372002 Hatch Milk Gamma I-131 GSP 6/21/2021 0 pCi/L 130019001 Hatch Fish Fe-59 172 Bass 4/26/2021 0 pCi/Kg 129298005 Hatch River Water K-40 172 9/21/2021 0 pCi/L 131372002 Hatch Fish Zn-65 172 Bass 4/26/2021 0 pCi/Kg 129298005 Hatch River Water Co-58 172 9/21/2021 0 pCi/L 131372002 Hatch River Water Co-60 172 9/21/2021 0 pCi/L 131372002 Hatch Air Qtr Comp Cs-134 112 9/27/2021 0 pCi/m3 131792003 Hatch Fish Mn-54 172 Bass 10/25/2021 0 pCi/Kg 131796006 Hatch Fish Fe-59 172 Bass 10/25/2021 0 pCi/Kg 131796006 Hatch Air Qtr Comp Cs-137 112 9/27/2021 0 pCi/m3 131792003 Hatch Air Qtr Comp Be-7 112 9/27/2021 0.08195 pCi/m3 131792003 Hatch Fish Zn-65 172 Bass 10/25/2021 0 pCi/Kg 131796006 Hatch Vegetation Cs-134 112 9/27/2021 0 pCi/Kg 131447002 Hatch Milk Gamma I-131 GSP 7/6/2021 0 pCi/L 130193001 Hatch Vegetation Be-7 112 9/27/2021 3260.1 pCi/Kg 131447002 Hatch Vegetation K-40 112 9/27/2021 3895.6 pCi/Kg 131447002 Hatch Vegetation Cs-137 112 9/27/2021 0 pCi/Kg 131447002 Hatch Air Qtr Comp Cs-134 107 9/27/2021 0 pCi/m3 131792002 Hatch Milk Gamma I-131 GSP 7/20/2021 0 pCi/L 130427001 Hatch Air Qtr Comp Cs-137 107 9/27/2021 0 pCi/m3 131792002 Hatch Fish Zn-65 172 Mullet 4/26/2021 0 pCi/Kg 129298006 Hatch Air Qtr Comp Be-7 107 9/27/2021 0.09653 pCi/m3 131792002 Hatch Vegetation Cs-134 106 9/27/2021 0 pCi/Kg 131447003 Hatch Fish Fe-59 172 Mullet 4/26/2021 0 pCi/Kg 129298006 Hatch Fish Mn-54 172 Mullet 4/26/2021 0 pCi/Kg 129298006 Hatch Vegetation Be-7 106 9/27/2021 2241.8 pCi/Kg 131447003 Hatch Vegetation K-40 106 9/27/2021 1753.4 pCi/Kg 131447003 Hatch Vegetation Cs-137 106 9/27/2021 60.546 pCi/Kg 131447003 Hatch Fish Zn-65 172 Mullet 10/25/2021 0 pCi/Kg 131796007 Hatch Air Qtr Comp Cs-134 309 9/27/2021 0 pCi/m3 131792006 Hatch Air Qtr Comp Cs-137 309 9/27/2021 0 pCi/m3 131792006 Hatch Fish Fe-59 172 Mullet 10/25/2021 0 pCi/Kg 131796007 Hatch Fish Mn-54 172 Mullet 10/25/2021 0 pCi/Kg 131796007 Hatch Milk Gamma I-131 GSP 8/3/2021 0 pCi/L 130591001 Hatch Air Qtr Comp Be-7 309 9/27/2021 0.07963 pCi/m3 131792006 Hatch Milk Gamma I-131 GSP 8/17/2021 0 pCi/L 130840001 Hatch Air Qtr Comp Cs-137 304 9/27/2021 0 pCi/m3 131792005 Hatch Fish Zn-65 172 Sucker 4/26/2021 0 pCi/Kg 129298004 Hatch Air Qtr Comp Cs-134 304 9/27/2021 0 pCi/m3 131792005 Hatch Air Qtr Comp Be-7 304 9/27/2021 0.09363 pCi/m3 131792005 Hatch Fish Fe-59 172 Sucker 4/26/2021 0 pCi/Kg 129298004 Hatch Fish Mn-54 172 Sucker 4/26/2021 0 pCi/Kg 129298004 Hatch Air Qtr Comp Cs-137 103 9/27/2021 0 pCi/m3 131792001 Hatch Air Qtr Comp Be-7 103 9/27/2021 0.06937 pCi/m3 131792001 Hatch Air Qtr Comp Cs-134 103 9/27/2021 0 pCi/m3 131792001 Hatch Milk Gamma I-131 GSP 8/31/2021 0 pCi/L 131042001 Hatch Air Qtr Comp Cs-134 116 9/27/2021 0 pCi/m3 131792004 Hatch Fish Zn-65 172 Sucker 10/25/2021 0 pCi/Kg 131796004

Hatch Air Qtr Comp Cs-137 116 9/27/2021 0 pCi/m3 131792004 Hatch Air Qtr Comp Be-7 116 9/27/2021 0.1108 pCi/m3 131792004 Hatch Fish Fe-59 172 Sucker 10/25/2021 0 pCi/Kg 131796004 Hatch Fish Mn-54 172 Sucker 10/25/2021 0 pCi/Kg 131796004 Hatch Charcoal Ct I-131 304 1/4/2021 0 pCi/m3 127932005 Hatch Air Filters Gross Beta 304 1/4/2021 0.01933 pCi/m3 127931005 Hatch Air Filters Gross Beta 304 1/11/2021 0.02952 pCi/m3 128029005 Hatch Charcoal Ct I-131 304 1/11/2021 0 pCi/m3 128030005 Hatch Air Filters Gross Beta 304 1/19/2021 0.0243 pCi/m3 128177005 Hatch Charcoal Ct I-131 304 1/19/2021 0 pCi/m3 128178005 Hatch Air Filters Gross Beta 304 1/25/2021 0.02238 pCi/m3 128293005 Hatch Charcoal Ct I-131 304 1/25/2021 0 pCi/m3 128294005 Hatch Charcoal Ct I-131 304 2/1/2021 0 pCi/m3 128354005 Hatch Air Filters Gross Beta 304 2/1/2021 0.02275 pCi/m3 128353005 Hatch Air Filters Gross Beta 304 2/8/2021 0.01831 pCi/m3 128429005 Hatch Charcoal Ct I-131 304 2/8/2021 0 pCi/m3 128430005 Hatch Charcoal Ct I-131 304 2/15/2021 0 pCi/m3 128568005 Hatch Air Filters Gross Beta 304 2/15/2021 0.009444 pCi/m3 128567005 Hatch Charcoal Ct I-131 304 2/22/2021 0 pCi/m3 128649005 Hatch Air Filters Gross Beta 304 2/22/2021 0.02162 pCi/m3 128648005 Hatch Air Filters Gross Beta 304 3/1/2021 0.01985 pCi/m3 128759005 Hatch Charcoal Ct I-131 304 3/1/2021 0 pCi/m3 128760005 Hatch Charcoal Ct I-131 304 3/8/2021 0 pCi/m3 128843005 Hatch Air Filters Gross Beta 304 3/8/2021 0.02153 pCi/m3 128842005 Hatch Air Filters Gross Beta 304 3/15/2021 0.02732 pCi/m3 128928005 Hatch Charcoal Ct I-131 304 3/15/2021 0 pCi/m3 128929005 Hatch Air Filters Gross Beta 304 3/22/2021 0.02016 pCi/m3 128997005 Hatch Charcoal Ct I-131 304 3/22/2021 0 pCi/m3 128998005 Hatch Vegetation Cs-134 416 9/27/2021 0 pCi/Kg 131447001 Hatch Vegetation Be-7 416 9/27/2021 1248 pCi/Kg 131447001 Hatch Charcoal Ct I-131 304 3/29/2021 0 pCi/m3 129041005 Hatch Air Qtr Comp I-131 304 3/29/2021 0 pCi/m3 129160005 Hatch Air Filters Gross Beta 304 3/29/2021 0.01424 pCi/m3 129040005 Hatch Vegetation K-40 416 9/27/2021 3884.7 pCi/Kg 131447001 Hatch Charcoal Ct I-131 304 4/5/2021 0 pCi/m3 129118005 Hatch Air Filters Gross Beta 304 4/5/2021 0.02399 pCi/m3 129117005 Hatch Charcoal Ct I-131 304 4/13/2021 0 pCi/m3 129177005 Hatch Air Filters Gross Beta 304 4/13/2021 0.02837 pCi/m3 129176005 Hatch Air Filters Gross Beta 304 4/19/2021 0.03173 pCi/m3 129255005 Hatch Charcoal Ct I-131 304 4/19/2021 0 pCi/m3 129256005 Hatch Charcoal Ct I-131 304 4/26/2021 0 pCi/m3 129301005 Hatch Air Filters Gross Beta 304 4/26/2021 0.02702 pCi/m3 129300005 Hatch Charcoal Ct I-131 304 5/3/2021 0 pCi/m3 129369005 Hatch Air Filters Gross Beta 304 5/3/2021 0.02777 pCi/m3 129368005 Hatch Air Filters Gross Beta 304 5/10/2021 0.02288 pCi/m3 129447005 Hatch Charcoal Ct I-131 304 5/10/2021 0 pCi/m3 129448005 Hatch Air Filters Gross Beta 304 5/18/2021 0.02304 pCi/m3 129517005 Hatch Charcoal Ct I-131 304 5/18/2021 0 pCi/m3 129518005 Hatch Air Filters Gross Beta 304 5/24/2021 0.01726 pCi/m3 129598004 Hatch Charcoal Ct I-131 304 5/24/2021 0 pCi/m3 129599004 Hatch Charcoal Ct I-131 304 6/1/2021 0 pCi/m3 129660005 Hatch Air Filters Gross Beta 304 6/1/2021 0.02565 pCi/m3 129659005 Hatch Air Filters Gross Beta 304 6/7/2021 0.01193 pCi/m3 129777005 Hatch Charcoal Ct I-131 304 6/7/2021 0 pCi/m3 129778005 Hatch Air Filters Gross Beta 304 6/14/2021 0.01142 pCi/m3 129919005 Hatch Charcoal Ct I-131 304 6/14/2021 0 pCi/m3 129920005 Hatch Charcoal Ct I-131 304 6/21/2021 0 pCi/m3 130021005 Hatch Air Filters Gross Beta 304 6/21/2021 0.02354 pCi/m3 130020005 Hatch Charcoal Ct I-131 304 6/28/2021 0 pCi/m3 130142005 Hatch Vegetation Cs-137 416 9/27/2021 0 pCi/Kg 131447001 Hatch Milk Gamma Cs-137 GSP 9/28/2021 0 pCi/L 131426001 Hatch Air Qtr Comp I-131 304 6/28/2021 0 pCi/m3 130248005 Hatch Milk Gamma Cs-134 GSP 9/28/2021 0 pCi/L 131426001 Hatch Air Filters Gross Beta 304 6/28/2021 0.01592 pCi/m3 130141005 Hatch Charcoal Ct I-131 304 7/6/2021 0 pCi/m3 130195005 Hatch Air Filters Gross Beta 304 7/6/2021 0.01637 pCi/m3 130194005 Hatch Charcoal Ct I-131 304 7/12/2021 0 pCi/m3 130293005 Hatch Air Filters Gross Beta 304 7/12/2021 0.01104 pCi/m3 130292005 Hatch Air Filters Gross Beta 304 7/19/2021 0.01455 pCi/m3 130424005 Hatch Charcoal Ct I-131 304 7/19/2021 0 pCi/m3 130425005 Hatch Charcoal Ct I-131 304 7/26/2021 0 pCi/m3 130494005 Hatch Air Filters Gross Beta 304 7/26/2021 0.0181 pCi/m3 130493005 Hatch Air Filters Gross Beta 304 8/2/2021 0.02419 pCi/m3 130588005 Hatch Charcoal Ct I-131 304 8/2/2021 0 pCi/m3 130589005 Hatch Charcoal Ct I-131 304 8/10/2021 0 pCi/m3 130713005 Hatch Air Filters Gross Beta 304 8/10/2021 0.01962 pCi/m3 130711005 Hatch Air Filters Gross Beta 304 8/16/2021 0.01423 pCi/m3 130841005 Hatch Charcoal Ct I-131 304 8/16/2021 0 pCi/m3 130842005 Hatch Air Filters Gross Beta 304 8/23/2021 0.01259 pCi/m3 130989005 Hatch Charcoal Ct I-131 304 8/23/2021 0 pCi/m3 130990005 Hatch Charcoal Ct I-131 304 8/30/2021 0 pCi/m3 131045005 Hatch Air Filters Gross Beta 304 8/30/2021 0.0228 pCi/m3 131044005 Hatch Charcoal Ct I-131 304 9/7/2021 0 pCi/m3 131155005 Hatch Air Filters Gross Beta 304 9/7/2021 0.02616 pCi/m3 131154005 Hatch Charcoal Ct I-131 304 9/13/2021 0 pCi/m3 131244005 Hatch Air Filters Gross Beta 304 9/13/2021 0.02633 pCi/m3 131243005 Hatch Air Filters Gross Beta 304 9/20/2021 0.02037 pCi/m3 131334005

Hatch Charcoal Ct I-131 304 9/20/2021 0 pCi/m3 131335005 Hatch Charcoal Ct I-131 304 9/27/2021 0 pCi/m3 131446005 Hatch Milk Gamma K-40 GSP 9/28/2021 314.72 pCi/L 131426001 Hatch Milk Gamma Be-7 GSP 9/28/2021 0 pCi/L 131426001 Hatch Air Qtr Comp I-131 304 9/27/2021 0 pCi/m3 131792005 Hatch Milk Gamma Cs-137 GSP 10/12/2021 0 pCi/L 131615001 Hatch Air Filters Gross Beta 304 9/27/2021 0.01723 pCi/m3 131444005 Hatch Charcoal Ct I-131 304 10/5/2021 0 pCi/m3 131547005 Hatch Air Filters Gross Beta 304 10/5/2021 0.03943 pCi/m3 131546005 Hatch Charcoal Ct I-131 304 10/11/2021 0 pCi/m3 131631005 Hatch Air Filters Gross Beta 304 10/11/2021 0.01598 pCi/m3 131630005 Hatch Charcoal Ct I-131 304 10/18/2021 0 pCi/m3 131715005 Hatch Air Filters Gross Beta 304 10/18/2021 0.02402 pCi/m3 131713005 Hatch Air Filters Gross Beta 304 10/25/2021 0.02973 pCi/m3 131815005 Hatch Charcoal Ct I-131 304 10/25/2021 0 pCi/m3 131816005 Hatch Air Filters Gross Beta 304 11/1/2021 0.01329 pCi/m3 131847005 Hatch Charcoal Ct I-131 304 11/1/2021 0 pCi/m3 131848005 Hatch Charcoal Ct I-131 304 11/8/2021 0 pCi/m3 131944005 Hatch Air Filters Gross Beta 304 11/8/2021 0.02571 pCi/m3 131943005 Hatch Air Filters Gross Beta 304 11/16/2021 0.0216 pCi/m3 131995005 Hatch Charcoal Ct I-131 304 11/16/2021 0 pCi/m3 131996005 Hatch Charcoal Ct I-131 304 11/22/2021 0 pCi/m3 132025005 Hatch Air Filters Gross Beta 304 11/22/2021 0.01926 pCi/m3 132024005 Hatch Air Filters Gross Beta 304 11/30/2021 0.0249 pCi/m3 132101005 Hatch Charcoal Ct I-131 304 11/30/2021 0 pCi/m3 132103005 Hatch Air Filters Gross Beta 304 12/6/2021 0.03917 pCi/m3 132153005 Hatch Charcoal Ct I-131 304 12/6/2021 0 pCi/m3 132154005 Hatch Charcoal Ct I-131 304 12/13/2021 0 pCi/m3 132204005 Hatch Air Filters Gross Beta 304 12/13/2021 0.02502 pCi/m3 132203005 Hatch Air Filters Gross Beta 304 12/20/2021 0.01312 pCi/m3 132264005 Hatch Charcoal Ct I-131 304 12/20/2021 0 pCi/m3 132266005 Hatch Milk Gamma Be-7 GSP 10/12/2021 0 pCi/L 131615001 Hatch Charcoal Ct I-131 304 12/27/2021 0 pCi/m3 132328005 Hatch Air Filters Gross Beta 304 12/27/2021 0.02127 pCi/m3 132327005 Hatch Air Qtr Comp I-131 304 12/27/2021 0 pCi/m3 132405005 Hatch Milk Gamma K-40 GSP 10/12/2021 276.16 pCi/L 131615001 Hatch Milk Gamma Cs-134 GSP 10/12/2021 0 pCi/L 131615001 Hatch Charcoal Ct I-131 309 1/4/2021 0 pCi/m3 127932006 Hatch Air Filters Gross Beta 309 1/4/2021 0.01522 pCi/m3 127931006 Hatch Charcoal Ct I-131 309 1/11/2021 0 pCi/m3 128030006 Hatch Air Filters Gross Beta 309 1/11/2021 0.02654 pCi/m3 128029006 Hatch Air Filters Gross Beta 309 1/19/2021 0.02577 pCi/m3 128177006 Hatch Charcoal Ct I-131 309 1/19/2021 0 pCi/m3 128178006 Hatch Charcoal Ct I-131 309 1/25/2021 0 pCi/m3 128294006 Hatch Air Filters Gross Beta 309 1/25/2021 0.02219 pCi/m3 128293006 Hatch Charcoal Ct I-131 309 2/1/2021 0 pCi/m3 128354006 Hatch Air Filters Gross Beta 309 2/1/2021 0.02058 pCi/m3 128353006 Hatch Air Filters Gross Beta 309 2/8/2021 0.0174 pCi/m3 128429006 Hatch Charcoal Ct I-131 309 2/8/2021 0 pCi/m3 128430006 Hatch Air Filters Gross Beta 309 2/15/2021 0.01152 pCi/m3 128567006 Hatch Charcoal Ct I-131 309 2/15/2021 0 pCi/m3 128568006 Hatch Air Filters Gross Beta 309 2/22/2021 0.02004 pCi/m3 128648006 Hatch Charcoal Ct I-131 309 2/22/2021 0 pCi/m3 128649006 Hatch Air Filters Gross Beta 309 3/1/2021 0.02189 pCi/m3 128759006 Hatch Charcoal Ct I-131 309 3/1/2021 0 pCi/m3 128760006 Hatch Charcoal Ct I-131 309 3/8/2021 0 pCi/m3 128843006 Hatch Air Filters Gross Beta 309 3/8/2021 0.02562 pCi/m3 128842006 Hatch Air Filters Gross Beta 309 3/15/2021 0.02618 pCi/m3 128928006 Hatch Charcoal Ct I-131 309 3/15/2021 0 pCi/m3 128929006 Hatch Charcoal Ct I-131 309 3/22/2021 0 pCi/m3 128998006 Hatch Air Filters Gross Beta 309 3/22/2021 0.02129 pCi/m3 128997006 Hatch Charcoal Ct I-131 309 3/29/2021 0 pCi/m3 129041006 Hatch Air Qtr Comp I-131 309 3/29/2021 0 pCi/m3 129160006 Hatch Air Filters Gross Beta 309 3/29/2021 0.01538 pCi/m3 129040006 Hatch River Water Cs-134 172 10/18/2021 0 pCi/L 131691002 Hatch River Water Cs-137 172 10/18/2021 0 pCi/L 131691002 Hatch River Water Co-60 172 10/18/2021 0 pCi/L 131691002 Hatch Charcoal Ct I-131 309 4/5/2021 0 pCi/m3 129118006 Hatch Air Filters Gross Beta 309 4/5/2021 0.02391 pCi/m3 129117006 Hatch Air Filters Gross Beta 309 4/13/2021 0.02677 pCi/m3 129176006 Hatch Charcoal Ct I-131 309 4/13/2021 0 pCi/m3 129177006 Hatch Air Filters Gross Beta 309 4/19/2021 0.03198 pCi/m3 129255006 Hatch Charcoal Ct I-131 309 4/19/2021 0 pCi/m3 129256006 Hatch Air Filters Gross Beta 309 4/26/2021 0.02369 pCi/m3 129300006 Hatch Charcoal Ct I-131 309 4/26/2021 0 pCi/m3 129301006 Hatch Charcoal Ct I-131 309 5/3/2021 0 pCi/m3 129369006 Hatch Air Filters Gross Beta 309 5/3/2021 0.02835 pCi/m3 129368006 Hatch Charcoal Ct I-131 309 5/10/2021 0 pCi/m3 129448006 Hatch Air Filters Gross Beta 309 5/10/2021 0.02239 pCi/m3 129447006 Hatch Air Filters Gross Beta 309 5/18/2021 0.02 pCi/m3 129517006 Hatch Charcoal Ct I-131 309 5/18/2021 0 pCi/m3 129518006 Hatch Air Filters Gross Beta 309 5/24/2021 0.01989 pCi/m3 129598005 Hatch Charcoal Ct I-131 309 5/24/2021 0 pCi/m3 129599005 Hatch Air Filters Gross Beta 309 6/1/2021 0.02607 pCi/m3 129659006 Hatch Charcoal Ct I-131 309 6/1/2021 0 pCi/m3 129660006 Hatch Air Filters Gross Beta 309 6/7/2021 0.01328 pCi/m3 129777006 Hatch Charcoal Ct I-131 309 6/7/2021 0 pCi/m3 129778006

Hatch Charcoal Ct I-131 309 6/14/2021 0 pCi/m3 129920006 Hatch Air Filters Gross Beta 309 6/14/2021 0.01267 pCi/m3 129919006 Hatch Charcoal Ct I-131 309 6/21/2021 0 pCi/m3 130021006 Hatch Air Filters Gross Beta 309 6/21/2021 0.02384 pCi/m3 130020006 Hatch Air Qtr Comp I-131 309 6/28/2021 0 pCi/m3 130248006 Hatch River Water Co-58 172 10/18/2021 0 pCi/L 131691002 Hatch River Water Be-7 172 10/18/2021 0 pCi/L 131691002 Hatch River Water K-40 172 10/18/2021 0 pCi/L 131691002 Hatch Air Filters Gross Beta 309 6/28/2021 0.01577 pCi/m3 130141006 Hatch Charcoal Ct I-131 309 6/28/2021 0 pCi/m3 130142006 Hatch Air Filters Gross Beta 309 7/6/2021 0.0134 pCi/m3 130194006 Hatch Charcoal Ct I-131 309 7/6/2021 0 pCi/m3 130195006 Hatch Air Filters Gross Beta 309 7/12/2021 0.01579 pCi/m3 130292006 Hatch Charcoal Ct I-131 309 7/12/2021 0 pCi/m3 130293006 Hatch Air Filters Gross Beta 309 7/19/2021 0.0181 pCi/m3 130424006 Hatch Charcoal Ct I-131 309 7/19/2021 0 pCi/m3 130425006 Hatch Charcoal Ct I-131 309 7/26/2021 0 pCi/m3 130494006 Hatch Air Filters Gross Beta 309 7/26/2021 0.01629 pCi/m3 130493006 Hatch Air Filters Gross Beta 309 8/2/2021 0.02697 pCi/m3 130588006 Hatch Charcoal Ct I-131 309 8/2/2021 0 pCi/m3 130589006 Hatch Air Filters Gross Beta 309 8/10/2021 0.01733 pCi/m3 130711006 Hatch Charcoal Ct I-131 309 8/10/2021 0 pCi/m3 130713006 Hatch Air Filters Gross Beta 309 8/16/2021 0.01701 pCi/m3 130841006 Hatch Charcoal Ct I-131 309 8/16/2021 0 pCi/m3 130842006 Hatch Air Filters Gross Beta 309 8/23/2021 0.01568 pCi/m3 130989006 Hatch Charcoal Ct I-131 309 8/23/2021 0 pCi/m3 130990006 Hatch Air Filters Gross Beta 309 8/30/2021 0.02315 pCi/m3 131044006 Hatch Charcoal Ct I-131 309 8/30/2021 0 pCi/m3 131045006 Hatch Charcoal Ct I-131 309 9/7/2021 0 pCi/m3 131155006 Hatch Air Filters Gross Beta 309 9/7/2021 0.02645 pCi/m3 131154006 Hatch Charcoal Ct I-131 309 9/13/2021 0 pCi/m3 131244006 Hatch Air Filters Gross Beta 309 9/13/2021 0.03286 pCi/m3 131243006 Hatch Charcoal Ct I-131 309 9/20/2021 0 pCi/m3 131335006 Hatch Air Filters Gross Beta 309 9/20/2021 0.01941 pCi/m3 131334006 Hatch River Water Co-58 170 10/18/2021 0 pCi/L 131691001 Hatch Charcoal Ct I-131 309 9/27/2021 0 pCi/m3 131446006 Hatch Air Filters Gross Beta 309 9/27/2021 0.0176 pCi/m3 131444006 Hatch Air Qtr Comp I-131 309 9/27/2021 0 pCi/m3 131792006 Hatch River Water Co-60 170 10/18/2021 0 pCi/L 131691001 Hatch River Water K-40 170 10/18/2021 0 pCi/L 131691001 Hatch Air Filters Gross Beta 309 10/5/2021 0.03937 pCi/m3 131546006 Hatch Charcoal Ct I-131 309 10/5/2021 0 pCi/m3 131547006 Hatch Charcoal Ct I-131 309 10/11/2021 0 pCi/m3 131631006 Hatch Air Filters Gross Beta 309 10/11/2021 0.01363 pCi/m3 131630006 Hatch Charcoal Ct I-131 309 10/18/2021 0 pCi/m3 131715006 Hatch Air Filters Gross Beta 309 10/18/2021 0.02415 pCi/m3 131713006 Hatch Charcoal Ct I-131 309 10/25/2021 0 pCi/m3 131816006 Hatch Air Filters Gross Beta 309 10/25/2021 0.03629 pCi/m3 131815006 Hatch Charcoal Ct I-131 309 11/1/2021 0 pCi/m3 131848006 Hatch Air Filters Gross Beta 309 11/1/2021 0.01405 pCi/m3 131847006 Hatch Charcoal Ct I-131 309 11/8/2021 0 pCi/m3 131944006 Hatch Air Filters Gross Beta 309 11/8/2021 0.02099 pCi/m3 131943006 Hatch Charcoal Ct I-131 309 11/16/2021 0 pCi/m3 131996006 Hatch Air Filters Gross Beta 309 11/16/2021 0.02135 pCi/m3 131995006 Hatch Charcoal Ct I-131 309 11/22/2021 0 pCi/m3 132025006 Hatch Air Filters Gross Beta 309 11/22/2021 0.01897 pCi/m3 132024006 Hatch Air Filters Gross Beta 309 11/30/2021 0.02417 pCi/m3 132101006 Hatch Charcoal Ct I-131 309 11/30/2021 0 pCi/m3 132103006 Hatch Air Filters Gross Beta 309 12/6/2021 0.03645 pCi/m3 132153006 Hatch Charcoal Ct I-131 309 12/6/2021 0 pCi/m3 132154006 Hatch Charcoal Ct I-131 309 12/13/2021 0 pCi/m3 132204006 Hatch Air Filters Gross Beta 309 12/13/2021 0.02549 pCi/m3 132203006 Hatch Charcoal Ct I-131 309 12/20/2021 0 pCi/m3 132266006 Hatch Air Filters Gross Beta 309 12/20/2021 0.01142 pCi/m3 132264006 Hatch River Water Cs-134 170 10/18/2021 0 pCi/L 131691001 Hatch River Water Cs-137 170 10/18/2021 0 pCi/L 131691001 Hatch Air Filters Gross Beta 309 12/27/2021 0.02502 pCi/m3 132327006 Hatch Charcoal Ct I-131 309 12/27/2021 0 pCi/m3 132328006 Hatch River Water Be-7 170 10/18/2021 0 pCi/L 131691001 Hatch Air Qtr Comp I-131 309 12/27/2021 0 pCi/m3 132405006 Hatch Milk Gamma I-131 GSP 9/14/2021 0 pCi/L 131224001 Hatch Vegetation Cs-134 112 10/25/2021 0 pCi/Kg 131817002 Hatch Milk Gamma I-131 GSP 9/28/2021 0 pCi/L 131426001 Hatch Vegetation Be-7 112 10/25/2021 3088.2 pCi/Kg 131817002 Hatch Vegetation K-40 112 10/25/2021 2754 pCi/Kg 131817002 Hatch Vegetation Cs-137 112 10/25/2021 0 pCi/Kg 131817002 Hatch Milk Gamma I-131 GSP 10/12/2021 0 pCi/L 131615001 Hatch Vegetation K-40 106 10/25/2021 2408.6 pCi/Kg 131817003 Hatch Vegetation Be-7 106 10/25/2021 4693.5 pCi/Kg 131817003 Hatch Milk Gamma I-131 GSP 10/26/2021 0 pCi/L 131794001 Hatch Milk Gamma I-131 GSP 11/9/2021 0 pCi/L 131932001 Hatch Vegetation Cs-134 106 10/25/2021 0 pCi/Kg 131817003 Hatch Milk Gamma I-131 GSP 11/22/2021 0 pCi/L 132017001 Hatch Vegetation Cs-137 106 10/25/2021 44.29 pCi/Kg 131817003 Hatch Fish Cs-137 170 Common Carp 10/25/2021 0 pCi/Kg 131796003 Hatch Fish Cs-137 170 Bass 10/25/2021 0 pCi/Kg 131796002 Hatch Milk Gamma I-131 GSP 12/7/2021 0 pCi/L 132141001

Hatch Fish Cs-137 170 Catfish 10/25/2021 0 pCi/Kg 131796001 Hatch Fish Be-7 170 Common Carp 10/25/2021 0 pCi/Kg 131796003 Hatch Milk Gamma I-131 GSP 12/20/2021 0 pCi/L 132260001 Hatch Fish K-40 170 Common Carp 10/25/2021 2866.2 pCi/Kg 131796003 Hatch Fish Co-58 170 Common Carp 10/25/2021 0 pCi/Kg 131796003 Hatch Fish Co-60 170 Common Carp 10/25/2021 0 pCi/Kg 131796003 Hatch Fish Cs-134 170 Common Carp 10/25/2021 0 pCi/Kg 131796003 Hatch Fish K-40 170 Bass 10/25/2021 3131.3 pCi/Kg 131796002 Hatch Fish Be-7 170 Bass 10/25/2021 0 pCi/Kg 131796002 Hatch Fish Cs-134 170 Bass 10/25/2021 0 pCi/Kg 131796002 Hatch Fish Co-60 170 Bass 10/25/2021 0 pCi/Kg 131796002 Hatch Fish Co-58 170 Bass 10/25/2021 0 pCi/Kg 131796002 Hatch Fish K-40 170 Catfish 10/25/2021 3077.8 pCi/Kg 131796001 Hatch Fish Co-58 170 Catfish 10/25/2021 0 pCi/Kg 131796001 Hatch Fish Co-60 170 Catfish 10/25/2021 0 pCi/Kg 131796001 Hatch Fish Cs-134 170 Catfish 10/25/2021 0 pCi/Kg 131796001 Hatch Fish Be-7 170 Catfish 10/25/2021 0 pCi/Kg 131796001 Hatch Fish Cs-137 172 Mullet 10/25/2021 14.4 pCi/Kg 131796007 Hatch Fish Cs-137 172 Common Carp 10/25/2021 0 pCi/Kg 131796005 Hatch Fish Cs-137 172 Bass 10/25/2021 0 pCi/Kg 131796006 Hatch Fish Cs-137 172 Sucker 10/25/2021 0 pCi/Kg 131796004 Hatch Fish K-40 172 Common Carp 10/25/2021 2963.9 pCi/Kg 131796005 Hatch Fish Be-7 172 Common Carp 10/25/2021 0 pCi/Kg 131796005 Hatch Fish Cs-134 172 Common Carp 10/25/2021 0 pCi/Kg 131796005 Hatch Fish Co-60 172 Common Carp 10/25/2021 0 pCi/Kg 131796005 Hatch Fish Co-58 172 Common Carp 10/25/2021 0 pCi/Kg 131796005 Hatch Fish Co-58 172 Bass 10/25/2021 0 pCi/Kg 131796006 Hatch Fish Co-60 172 Bass 10/25/2021 0 pCi/Kg 131796006 Hatch Fish Cs-134 172 Bass 10/25/2021 0 pCi/Kg 131796006 Hatch Fish Be-7 172 Bass 10/25/2021 0 pCi/Kg 131796006 Hatch Fish K-40 172 Bass 10/25/2021 3405.8 pCi/Kg 131796006 Hatch Fish Be-7 172 Mullet 10/25/2021 0 pCi/Kg 131796007 Hatch Fish K-40 172 Mullet 10/25/2021 3497.5 pCi/Kg 131796007 Hatch Fish Cs-134 172 Mullet 10/25/2021 0 pCi/Kg 131796007 Hatch Fish Co-60 172 Mullet 10/25/2021 0 pCi/Kg 131796007 Hatch Fish Co-58 172 Mullet 10/25/2021 0 pCi/Kg 131796007 Hatch Fish K-40 172 Sucker 10/25/2021 3483.9 pCi/Kg 131796004 Hatch Fish Be-7 172 Sucker 10/25/2021 0 pCi/Kg 131796004 Hatch Fish Cs-134 172 Sucker 10/25/2021 0 pCi/Kg 131796004 Hatch Fish Co-60 172 Sucker 10/25/2021 0 pCi/Kg 131796004 Hatch Fish Co-58 172 Sucker 10/25/2021 0 pCi/Kg 131796004 Hatch Vegetation Be-7 416 10/25/2021 3380.3 pCi/Kg 131817001 Hatch Vegetation K-40 416 10/25/2021 4915.3 pCi/Kg 131817001 Hatch Vegetation Cs-134 416 10/25/2021 0 pCi/Kg 131817001 Hatch Vegetation Cs-137 416 10/25/2021 0 pCi/Kg 131817001 Hatch Milk Gamma La-140 GSP 1/5/2021 0 pCi/L 127930001 Hatch Milk Gamma Cs-137 GSP 10/26/2021 0 pCi/L 131794001 Hatch Milk Gamma Be-7 GSP 10/26/2021 0 pCi/L 131794001 Hatch Milk Gamma K-40 GSP 10/26/2021 321.14 pCi/L 131794001 Hatch Milk Gamma Cs-134 GSP 10/26/2021 0 pCi/L 131794001 Hatch Sediment K-40 170 11/1/2021 4279.8 pCi/Kg 131849001 Hatch Sediment Be-7 170 11/1/2021 0 pCi/Kg 131849001 Hatch Milk Gamma La-140 GSP 1/19/2021 0 pCi/L 128176001 Hatch Sediment Cs-137 170 11/1/2021 0 pCi/Kg 131849001 Hatch Sediment Cs-134 170 11/1/2021 0 pCi/Kg 131849001 Hatch Sediment Co-58 170 11/1/2021 0 pCi/Kg 131849001 Hatch Milk Gamma La-140 GSP 2/2/2021 0 pCi/L 128355001 Hatch Sediment Co-60 170 11/1/2021 0 pCi/Kg 131849001 Hatch Sediment K-40 172 11/1/2021 4688.2 pCi/Kg 131849002 Hatch Sediment Be-7 172 11/1/2021 0 pCi/Kg 131849002 Hatch Sediment Cs-137 172 11/1/2021 0 pCi/Kg 131849002 Hatch Sediment Cs-134 172 11/1/2021 0 pCi/Kg 131849002 Hatch Sediment Co-60 172 11/1/2021 0 pCi/Kg 131849002 Hatch Milk Gamma La-140 GSP 2/16/2021 0 pCi/L 128610001 Hatch Sediment Co-58 172 11/1/2021 0 pCi/Kg 131849002 Hatch Milk Gamma Cs-137 GSP 11/9/2021 0 pCi/L 131932001 Hatch Milk Gamma K-40 GSP 11/9/2021 288.73 pCi/L 131932001 Hatch Milk Gamma Be-7 GSP 11/9/2021 0 pCi/L 131932001 Hatch Milk Gamma Cs-134 GSP 11/9/2021 0 pCi/L 131932001 Hatch Milk Gamma La-140 GSP 3/2/2021 0 pCi/L 128758001 Hatch Milk Gamma Cs-137 GSP 11/22/2021 0 pCi/L 132017001 Hatch Milk Gamma K-40 GSP 11/22/2021 1346.2 pCi/L 132017001 Hatch Milk Gamma Be-7 GSP 11/22/2021 0 pCi/L 132017001 Hatch Milk Gamma Cs-134 GSP 11/22/2021 0 pCi/L 132017001 Hatch Vegetation K-40 112 11/30/2021 3836.9 pCi/Kg 132104002 Hatch Milk Gamma La-140 GSP 3/16/2021 0 pCi/L 128930001 Hatch Vegetation Be-7 112 11/30/2021 2420.1 pCi/Kg 132104002 Hatch Vegetation Cs-134 112 11/30/2021 0 pCi/Kg 132104002 Hatch Vegetation Cs-137 112 11/30/2021 0 pCi/Kg 132104002 Hatch River Water Cs-134 170 11/30/2021 0 pCi/L 132099001 Hatch River Water Cs-137 170 11/30/2021 0 pCi/L 132099001 Hatch River Water Be-7 170 11/30/2021 0 pCi/L 132099001 Hatch Milk Gamma La-140 GSP 3/30/2021 0 pCi/L 129043001 Hatch River Water K-40 170 11/30/2021 0 pCi/L 132099001 Hatch River Water Co-60 170 11/30/2021 0 pCi/L 132099001 Hatch River Water Co-58 170 11/30/2021 0 pCi/L 132099001 Hatch Vegetation Cs-134 416 11/30/2021 0 pCi/Kg 132104001

Hatch Milk Gamma La-140 GSP 4/13/2021 0 pCi/L 129175001 Hatch Vegetation K-40 416 11/30/2021 4502.872 pCi/Kg 132104001 Hatch Vegetation Be-7 416 11/30/2021 3629.22 pCi/Kg 132104001 Hatch Vegetation Cs-137 416 11/30/2021 0 pCi/Kg 132104001 Hatch River Water K-40 172 12/1/2021 0 pCi/L 132099002 Hatch River Water Co-58 172 12/1/2021 0 pCi/L 132099002 Hatch Milk Gamma La-140 GSP 4/27/2021 0 pCi/L 129310001 Hatch River Water Co-60 172 12/1/2021 0 pCi/L 132099002 Hatch River Water Cs-134 172 12/1/2021 0 pCi/L 132099002 Hatch River Water Cs-137 172 12/1/2021 0 pCi/L 132099002 Hatch River Water Be-7 172 12/1/2021 0 pCi/L 132099002 Hatch Milk Gamma La-140 GSP 5/11/2021 0 pCi/L 129443001 Hatch Vegetation I-131 106 1/25/2021 0 pCi/Kg 128296003 Hatch Milk Gamma Cs-137 GSP 12/7/2021 0 pCi/L 132141001 Hatch Vegetation I-131 106 3/30/2021 0 pCi/Kg 129042003 Hatch Milk Gamma Be-7 GSP 12/7/2021 0 pCi/L 132141001 Hatch Milk Gamma K-40 GSP 12/7/2021 1436 pCi/L 132141001 Hatch Milk Gamma Cs-134 GSP 12/7/2021 0 pCi/L 132141001 Hatch Milk Gamma La-140 GSP 5/25/2021 0 pCi/L 129603001 Hatch Vegetation I-131 106 4/26/2021 0 pCi/Kg 129302003 Hatch Milk Gamma Cs-137 GSP 12/20/2021 0 pCi/L 132260001 Hatch Vegetation I-131 106 6/1/2021 0 pCi/Kg 129661003 Hatch Vegetation I-131 106 6/28/2021 0 pCi/Kg 130144003 Hatch Milk Gamma Be-7 GSP 12/20/2021 0 pCi/L 132260001 Hatch Vegetation I-131 106 7/26/2021 0 pCi/Kg 130496003 Hatch Milk Gamma K-40 GSP 12/20/2021 1348.8 pCi/L 132260001 Hatch Milk Gamma Cs-134 GSP 12/20/2021 0 pCi/L 132260001 Hatch Milk Gamma La-140 GSP 6/7/2021 0 pCi/L 129794001 Hatch Milk Gamma La-140 GSP 6/21/2021 0 pCi/L 130019001 Hatch Vegetation I-131 106 8/30/2021 0 pCi/Kg 131046003 Hatch Air Qtr Comp Be-7 112 12/27/2021 0.09602 pCi/m3 132405003 Hatch Vegetation I-131 106 9/27/2021 0 pCi/Kg 131447003 Hatch Air Qtr Comp Cs-137 112 12/27/2021 0 pCi/m3 132405003 Hatch Air Qtr Comp Cs-134 112 12/27/2021 0 pCi/m3 132405003 Hatch Vegetation I-131 106 10/25/2021 0 pCi/Kg 131817003 Hatch Vegetation K-40 112 12/27/2021 3155.2 pCi/Kg 132310002 Hatch Vegetation I-131 106 12/27/2021 0 pCi/Kg 132310003 Hatch Milk Gamma La-140 GSP 7/6/2021 0 pCi/L 130193001 Hatch Vegetation Be-7 112 12/27/2021 4123.6 pCi/Kg 132310002 Hatch Vegetation Cs-134 112 12/27/2021 0 pCi/Kg 132310002 Hatch Vegetation I-131 112 1/25/2021 0 pCi/Kg 128296002 Hatch Milk Gamma La-140 GSP 7/20/2021 0 pCi/L 130427001 Hatch Vegetation Cs-137 112 12/27/2021 0 pCi/Kg 132310002 Hatch Air Qtr Comp Cs-134 107 12/27/2021 0 pCi/m3 132405002 Hatch Vegetation I-131 112 2/22/2021 0 pCi/Kg 128651002 Hatch Air Qtr Comp Cs-137 107 12/27/2021 0 pCi/m3 132405002 Hatch Air Qtr Comp Be-7 107 12/27/2021 0.1063 pCi/m3 132405002 Hatch Milk Gamma La-140 GSP 8/3/2021 0 pCi/L 130591001 Hatch Vegetation I-131 112 3/30/2021 0 pCi/Kg 129042002 Hatch Vegetation K-40 106 12/27/2021 1476.4 pCi/Kg 132310003 Hatch Vegetation I-131 112 4/26/2021 0 pCi/Kg 129302002 Hatch Vegetation Be-7 106 12/27/2021 4552.9 pCi/Kg 132310003 Hatch Vegetation Cs-134 106 12/27/2021 0 pCi/Kg 132310003 Hatch Milk Gamma La-140 GSP 8/17/2021 0 pCi/L 130840001 Hatch Vegetation Cs-137 106 12/27/2021 28.102 pCi/Kg 132310003 Hatch Vegetation I-131 112 6/1/2021 0 pCi/Kg 129661002 Hatch Vegetation I-131 112 6/28/2021 0 pCi/Kg 130144002 Hatch Air Qtr Comp Cs-137 309 12/27/2021 0 pCi/m3 132405006 Hatch Milk Gamma La-140 GSP 8/31/2021 0 pCi/L 131042001 Hatch Air Qtr Comp Be-7 309 12/27/2021 0.09113 pCi/m3 132405006 Hatch Air Qtr Comp Cs-134 309 12/27/2021 0 pCi/m3 132405006 Hatch Vegetation I-131 112 7/26/2021 0 pCi/Kg 130496002 Hatch Air Qtr Comp Be-7 304 12/27/2021 0.08281 pCi/m3 132405005 Hatch Vegetation I-131 112 8/30/2021 0 pCi/Kg 131046002 Hatch Air Qtr Comp Cs-134 304 12/27/2021 0 pCi/m3 132405005 Hatch Milk Gamma La-140 GSP 9/14/2021 0 pCi/L 131224001 Hatch Vegetation I-131 112 9/27/2021 0 pCi/Kg 131447002 Hatch Air Qtr Comp Cs-137 304 12/27/2021 0 pCi/m3 132405005 Hatch Vegetation I-131 112 10/25/2021 0 pCi/Kg 131817002 Hatch Air Qtr Comp Cs-134 103 12/27/2021 0 pCi/m3 132405001 Hatch Air Qtr Comp Cs-137 103 12/27/2021 0 pCi/m3 132405001 Hatch Vegetation I-131 112 11/30/2021 0 pCi/Kg 132104002 Hatch Air Qtr Comp Be-7 103 12/27/2021 0.07971 pCi/m3 132405001 Hatch Air Qtr Comp Cs-137 116 12/27/2021 0 pCi/m3 132405004 Hatch Milk Gamma La-140 GSP 9/28/2021 0 pCi/L 131426001 Hatch Vegetation I-131 112 12/27/2021 0 pCi/Kg 132310002 Hatch Milk Gamma La-140 GSP 10/12/2021 0 pCi/L 131615001 Hatch Air Qtr Comp Cs-134 116 12/27/2021 0 pCi/m3 132405004 Hatch Air Qtr Comp Be-7 116 12/27/2021 0.07664 pCi/m3 132405004 Hatch Vegetation I-131 416 1/25/2021 0 pCi/Kg 128296001 Hatch Vegetation Be-7 416 12/27/2021 1625.1 pCi/Kg 132310001 Hatch Vegetation I-131 416 2/22/2021 0 pCi/Kg 128651001 Hatch Vegetation Cs-134 416 12/27/2021 0 pCi/Kg 132310001 Hatch Vegetation K-40 416 12/27/2021 4882.7 pCi/Kg 132310001 Hatch Milk Gamma La-140 GSP 10/26/2021 0 pCi/L 131794001 Hatch Vegetation Cs-137 416 12/27/2021 0 pCi/Kg 132310001 Hatch Vegetation I-131 416 3/29/2021 0 pCi/Kg 129042001

Hatch Vegetation I-131 416 4/26/2021 0 pCi/Kg 129302001 Hatch River Water Be-7 172 12/28/2021 0 pCi/L 132308002 Hatch River Water K-40 172 12/28/2021 0 pCi/L 132308002 Hatch Milk Gamma La-140 GSP 11/9/2021 0 pCi/L 131932001 Hatch Vegetation I-131 416 6/1/2021 0 pCi/Kg 129661001 Hatch River Water Co-58 172 12/28/2021 0 pCi/L 132308002 Hatch Vegetation I-131 416 6/28/2021 0 pCi/Kg 130144001 Hatch River Water Co-60 172 12/28/2021 0 pCi/L 132308002 Hatch River Water Cs-134 172 12/28/2021 0 pCi/L 132308002 Hatch Milk Gamma La-140 GSP 11/22/2021 0 pCi/L 132017001 Hatch Vegetation I-131 416 7/26/2021 0 pCi/Kg 130496001 Hatch River Water Cs-137 172 12/28/2021 0 pCi/L 132308002 Hatch Vegetation I-131 416 8/30/2021 0 pCi/Kg 131046001 Hatch Milk Gamma La-140 GSP 12/7/2021 0 pCi/L 132141001 Hatch River Water Cs-134 170 12/28/2021 0 pCi/L 132308001 Hatch River Water Cs-137 170 12/28/2021 0 pCi/L 132308001 Hatch Vegetation I-131 416 9/27/2021 0 pCi/Kg 131447001 Hatch River Water Be-7 170 12/28/2021 0 pCi/L 132308001 Hatch Vegetation I-131 416 10/25/2021 0 pCi/Kg 131817001 Hatch Milk Gamma La-140 GSP 12/20/2021 0 pCi/L 132260001 Hatch River Water K-40 170 12/28/2021 0 pCi/L 132308001 Hatch River Water Co-58 170 12/28/2021 0 pCi/L 132308001 Hatch Vegetation I-131 416 11/30/2021 0 pCi/Kg 132104001 Hatch River Water Co-60 170 12/28/2021 0 pCi/L 132308001 Hatch Vegetation I-131 416 12/27/2021 0 pCi/Kg 132310001

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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 2021 Farley Annual Radiological Environmental Operating Report for 2021

JOSEPH M. FARLEY NUCLEAR PLANT 2021 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

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PLANT FARLEY 2021 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............................................................................................ 16 3.1.1 Gross Beta................................................................................................. 16 3.1.2 Gamma Particulates and Airborne Radioiodine....................................... 18 3.2 Direct Radiation.................................................................................................... 18 3.3 Biological Media.................................................................................................... 21 3.3.1 Milk........................................................................................................... 21 3.3.2 Vegetation................................................................................................. 21 3.3.3 Fish............................................................................................................ 21 3.3.3.1 Bottom Feeding Species............................................................................ 21 3.3.3.2 Game Species............................................................................................ 22 3.3.4 Biological Media Summary....................................................................... 22 3.4 Off-site Groundwater............................................................................................ 22 3.5 River (Surface) Water............................................................................................ 22 3.6 Sediment............................................................................................................... 23 3.7 Interlaboratory Comparison Program.................................................................. 24 4

Survey Summaries.................................................................................................... 27 4.1 Land Use Census................................................................................................... 27 4.2 Chattahoochee River Survey................................................................................. 27 4.3 Meteorological Report Summary......................................................................... 28 5

Conclusions.............................................................................................................. 29 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.......................................................... 16 Table 3-5. Average Quarterly Exposure from Direct Radiation (Historical)................................ 19 Table 3-6. Interlaboratory Comparison Limits............................................................................. 24 Table 3-7. Interlaboratory Comparison Summary....................................................................... 25 Table 4-1. Land Use Census Results............................................................................................. 27 Figures Figure 3-1. Average Weekly Gross Beta Air Concentration.......................................................... 17 Figure 3-2. Average Quarterly Exposure from Direct Radiation................................................... 20 Figure 3-3. 2021 Average Exposure from Direct Radiation in Select Locations........................... 20 Figure 3-4. 2021 Average Tritium Concentrations in River and Off-site Groundwater................ 23

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report ii l P a g e Appendix A - Maps A REMP Stations in Plant Vicinity A REMP Stations within 10 Miles A Extended REMP Stations Appendix B - Errata

PLANT FARLEY 2021 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 2021 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 2021 were reported herein in accordance with Technical Specification (TS) 5.6.2 and ODCM 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.

A description of the REMP is provided in Section 2 of this report

Section 3 provides a summary of the results, an assessment of any radiological impacts to the environment, and the results from the Interlaboratory Comparison

A summary of the land use census and the river survey are included in Section 4

Conclusions are included in Section 5

PLANT FARLEY 2021 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 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. Any Errata from previous reports are provided in Appendix B.

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 2021 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 Sample 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 Particulates1 Samples from nine 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 Groundwater Off-site monitoring includes one indicator station and one control station Quarterly Off-site wells are analyzed only for Gamma Isotopic, I-131, & tritium

PLANT FARLEY 2021 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 Sample Number of Representative Samples and Sample Locations Sampling/Collection Frequency Type/Frequency of Analysis 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 a distance of about 5 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 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 2021 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 Sample 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 2021 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 2021 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 2021 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, 1662 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. When it is detected in effluents and REMP samples, it is also included in the REMP results. In 2021, Be-7 was not detected in any plant effluents and therefore it was not included in this report.

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 2021 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 2021 results were compared with previous results, including those obtained during pre-operation. No data points were excluded for violating Chauvenets Criterion.

PLANT FARLEY 2021 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 431 10 17.07 3.6 to 33 (171/171)

Columbia, AL N 5 mi.

Community 25.6 6.2 to 29.6 (52/52) 19.1 4.5 to 42.6 (156/156) 16.2 4 to 33.3 (104/104)

Gamma Isotopic Be-7 I-131 34 70 NDM(c)

NDM NDM NDM Cs-134 34 50 NDM NDM NDM NDM Cs-137 34 60 NDM NDM NDM NDM Airborne Radioiodine(fCi/m3)

I-131 326 70 NDM NDM NDM NDM Direct Radiation (mR/91 days)

Gamma Dose 160 16.9 12.1 to 27.5 (64/64)

Plant Perimeter, E 0.8 mi Indicator 24.88 23.1 to 27.5 (4/4) 14.4 11.8 to 18.1 (72/72) 17.5 12.7 to 23.8 (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 33

PLANT FARLEY 2021 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 33 I-131 33 60 NDM NDM Cs-134 33 60 NDM NDM Cs-137 33 80 0.6 0.0 to 12.9 (1/22)

North Perimeter N 0.8 mi, Indicator 12.9 0-12.9 (1/11)

NDM 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 140.3 136 to 162 (3/4)

Paper Mill (RM 40)

Indicator 140.3 136 to 162 (3/4)

NDM Off-site Groundwater Gamma Isotopic 8

PLANT FARLEY 2021 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 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 2021 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 2021 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 2021 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 03-10-21 to 03-17-21 Air sample PI-1101/II-1101 0.9 mile - N (A) Non-representative sample of airborne particulate and radioiodine Lost 25.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 months of weekly sample collection due to temporary loss of station power during implementation of plant design change Station returned to normal operation after power was restored to sampling equipment.

04-20-21 to 04-27-21 Air sample PI-1601/II-1601 0.8 mile - N (A) Non-representative sample of airborne particulate and radioiodine Lost 13.2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-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.

04-20-21 to 04-27-21 Air sample PC-1108 8.0 miles -

WSW (A) Non-representative sample of airborne particulate and radioiodine Lost 79.2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-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.

06-01-21 to 06-29-21 Surface Water sample Indicator station (WRI)

Georgia-Pacific Paper Co.

Intake Structure (Chattahoochee River Mile - 40)

(D) Non-representative sample of surface water gamma isotopic and tritium Lost 112 monthly composite sample aliquots while river intake pumps were secured during cold shutdown of the Georgia-Pacific Paper Mill Composite sampler resumed operation at start of next collection period, 06-29-21, after river intake pumps were returned to service.

07-27-21 to 08-03-21, and 08-03-21 to 08-10-21 Air sample PI-1101/II-1101 0.9 mile - N (D) Non-representative sample of airborne particulate and radioiodine Lost 241 hours0.00279 days 0.0669 hours 3.984788e-4 weeks 9.17005e-5 months of weekly sample collection due to equipment failure of the stations air sampling pump.

Station resumed normal operation after new sample pump was installed and returned to service.

08-17-21 to 08-24-21 Air sample PC-0703/IC-0703 3.0 miles - SSE (A) Non-representative sample of airborne particulate and radioiodine Lost 19.5 hours5.787037e-5 days 0.00139 hours 8.267196e-6 weeks 1.9025e-6 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.

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 2021 FNP Annual Radiological Environmental Operating Report 16 l P a g e 3.1 Airborne As specified in Table 2-1, airborne particulate filters are collected weekly at four indicator stations (Stations 0501, 0701, 1101, and 1601) which encircle the plant at the site periphery, at three community stations (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. An activated charcoal canister is also placed in series with the particulate filter at each station, except for community stations 1108 and 1605. At each location, air is continuously drawn through a glass fiber filter to retain airborne particulates and, as appropriate, an activated charcoal canister to adsorb radioiodine. The charcoal canister at community station 0703 in Cedar Springs, GA is used for comparison purposes with the Georgia Environmental Protection Division (EPD).

3.1.1 Gross Beta As provided in Table 3-1, the 2021 annual average weekly gross beta activity was 17.1 fCi/m3 for the indicator stations. It was greater than the control station average of 16.2 fCi/m3 for the year.

The difference was less than the calculated MDD of 2.0 fCi/L, so the difference was not statistically discernible. The 2021 annual average weekly gross beta activity at the community stations was 19.1 fCi/m3 which was 2.9. fCi/m3 more than the control station average. The difference was more than the calculated MDD of 2.3 fCi/L, so the difference 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.

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

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 17 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) 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 2021 17.1 16.2 19.1 Figure 3-1. Average Weekly Gross Beta Air Concentration

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 18 l P a g e 3.1.2 Gamma Particulates and Airborne Radioiodine During 2021, no 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 2021.

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 2021, direct (external) radiation was measured with Optically Stimulated Luminescent (OSL) dosimeters by placing two OSL 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 2021 average quarterly exposure at the indicator stations (inner ring) was 16.9 mR with a range of 12.1 to 27.5 mR. The 2021 average quarterly exposure at the control station average was 17.5 mR with a range 12.7 mR to 23.8 mR. 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 2021 ranged from 11.1 -18.1 mR with an average of 14.4 mR which was 3.1 mR less than that of the control stations (17.5 mR). The MDD does not apply since the average is less than that of the control average.

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 19 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 2021 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 2021 16.9 17.5 14.4

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 20 l P a g e Figure 3-2. Average Quarterly Exposure from Direct Radiation Figure 3-3. 2021 Average Exposure from Direct Radiation in Select Locations 0

2 4

6 8

10 12 14 16 18 Indicator Control Community Nearest Residence Ashford, AL Concentration (mR)

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 21 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 2021 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. 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 2021, Cs-137 was identified in one sample at the indicator station, FI-1601-M1 (Dothan, Alabama). The indicator station average (and single value) was 12.92 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 2021, but was not released in plant effluents throughout the year. This further illustrates the presence 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 2021.

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 22 l P a g e 3.3.3.2 Game Species No radionuclides were identified from the control or indicator samples in 2021.

3.3.4 Biological Media Summary There were no statistical differences, trends, or anomalies associated with the 2021 biological media samples when compared to historical data. Cs-137 was occasionally present in biological media, as with previous sample results; however, any detections were consistently below both the RL. No other reportable radionuclides were found from the gamma isotopic analysis of biological media samples in 2021.

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 2021, 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. Any values has historically represented background conditions for tritium in drinking water and were not attributable to plant activity.

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 2021 from the gamma isotopic analysis of the river water samples. Tritium was detected in three out of the four quarterly composites at the indicator station, with an average of 140.3 pCi/L (range of 136 to 162). Tritium in the control stations had no detectible measurements. The positive tritium results for the indicator 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. No MDD was calculated because of the level of negative

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 23 l P a g e values. These values represent background conditions for tritium in drinking water 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 2021 average tritium concentrations across both water mediums.

Figure 3-4. 2021 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 2021.

0 25 50 75 100 125 150 175 200 River Water Off-Site Groundwater Concentration (pCi/L)

Indicator Control

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 24 l P a g e 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 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 is 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 Fe-59. For Fe-59, an investigation is undertaken when the coefficient of variation exceeds the values shown on Table 3-6 below:

Table 3-6. Interlaboratory Comparison Limits Nuclide Concentration

Percent Coefficient of Variation Fe-59

<80 25

>80 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:

gross beta and gamma isotopic analyses of an air filter

gamma isotopic analyses of milk samples

gross beta, tritium and gamma isotopic analyses of water samples The 2021 analyses included tritium, gross beta and gamma emitting radionuclides in different matrices. The results for all analyses were within acceptable limits for accuracy.

PLANT FARLEY 2021 FNP 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 (1S)

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

I-131 3/11/2021 89.7 88.1 2.51 1.47 5.60 0.31 GAMMA ISOTOPIC ANALYSIS OF AN AIR FILTER (pCi/filter)

Ce-141 9/9/2021 123 116 6.27 1.94 7.25 0.82 Co-58 127 119 4.52 1.99 5.65 1.15 Co-60 151 147 1.76 2.45 4.05 0.66 Cs-134 98.6 94.3 3.56 1.58 5.20 0.83 Cs-137 121 113 4.02 1.89 5.44 1.23 Fe-59 107 103 4.72 1.72 6.82 0.52 Mn-54 144 130 2.83 2.17 4.67 2.12 Zn-65 176 155 7.60 2.59 6.48 1.85 GROSS BETA ANALYSIS OF AN AIR FILTER (PCI/FILTER)

Gross Beta 6/3/2021 123 130 3.91 2.17 4.22 1.35 GAMMA ISOTOPIC ANALYSIS OF A MILK SAMPLE (PCI/LITER)

Ce-141 123 114 3.91 1.91 7.3 0.96 Co-58 9/9/2021 125 118 5.49 1.97 7.33 0.79 Co-60 155 145 6.18 2.42 6.19 1.05 Cs-134 95.3 93.1 4.43 1.56 6.96 0.33 Cs-137 121 112 5.89 1.87 7.61 0.94 Fe-59 107 102 3.32 1.70 8.17 0.55 I-131 89.5 85.6 9.22 1.43 13.01 0.33 Mn-54 140 128 4.27 2.14 6.40 1.32 Zn-65 170 153 11.54 2.56 9.70 1.01 GROSS BETA ANALYSIS OF WATER SAMPLE (PCI/LITER)

Gross Beta 6/3/2021 214 258 27.58 4.31 13.79 1.51 12/2/2021 304 281 6.10 4.69 4.06

-1.87

PLANT FARLEY 2021 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 (1S)

Percent Coefficient of Variation Normalized Deviation GAMMA ISOTOPIC ANALYSIS OF WATER SAMPLES (PCI/LITER)

Ce-141 6/3/2021 187 180 8.62 3.00 7.38

-0.51 Co-58 187 179 9.64 2.98 7.36

-0.56 Co-60 225 215 4.96 3.59 4.95

-0.89 Cs-134 212 213 4.69 3.56 4.86 0.14 Cs-137 192 188 4.00 3.13 5.59

-0.41 Fe-59 178 183 7.52 3.06 7.55 0.36 I-131 95.7 92.0 5.79 1.54 10.44

-0.37 Mn-54 264 249 12.79 4.16 6.82

-0.84 Zn-65 319 300 17.65 5.01 7.77

-0.78 TRITIUM ANALYSIS OF WATER SAMPLES (PCI/LITER)

H-3 9/9/2021 10800 11700 428.02 195 4.75

-1.66 GAMMA ISOTOPIC ANALYSIS OF VEGETATION SAMPLES (PCI/KG)

Ce-141 162 148 9.93 2.48 10.42 0.85 Co-58 6/3/2021 164 147 13.6 2.46 11.45

-0.92 Co-60 179 177 8.64 2.96 7.81

-0.16 Cs-134 180 176 11.0 2.93 8.19

-0.28 Cs-137 170 155 7.90 2.58 8.71

-0.98 Fe-59 152 151 12.7 2.52 13.65

-0.07 Mn-54 230 205 13.4 3.43 8.65

-1.27 Zn-65 275 247 28.7 4.13 13.73

-0.73

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 27 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 2021 that circumscribed each of the 16 compass sectors within a five mile radius in order to verify the locations of the nearest radiological receptor. A milk animal is a cow or goat producing milk for human consumption. The census results are tabulated in Table 4.1. The 2021 land use census indicated that there were no changes to the nearest location for any of the categories in any of the sectors when compared to the 2020 census, nor were any milk animals located within a five-mile radius.

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 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.

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 28 l P a g e In the fall of 2021, the Georgia Environmental Protection Division (EPD), Alabama Department of Environmental Management (ADEM) and Alabama Department of Economic and Community Affairs (ADECA) were 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 2021, the meteorological tower results were comparable to previous years, precipitation amounts (73.74) and wind direction (from southwest at 10m) were also similar.

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report 29 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 2021 activities associated with the REMP, SNC offers the following conclusions:

Samples were collected and there were no deviations or anomalies that negatively affected the quality of the REMP

Land use census and river survey did not reveal any changes

Analytical results were below reporting levels

These values were consistent with historical results which indicate no adverse radiological environmental impacts associated with the operation of FNP

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PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report Appendix A APPENDIX A Maps

Legend:

Indicator Stations -

Drawn by:

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

SW W

NW N

NE E

SE April 20, 2022 Joseph M. Farley Nuclear Plant 2021 Radiological Environmental Report REMP Stations in Plant Vicinity

Legend:

Indicator Stations -

Control Stations -

Drawn by:

Appendix A Map A-2 C. Groce 10 Miles April 20, 2022 Joseph M. Farley Nuclear Plant 2021 Radiological Environmental Report REMP Stations Within 10 Miles

Drawn by:

Appendix A Map A-3 C. Groce Legend:

Control Stations -

April 20, 2022 Joseph M. Farley Nuclear Plant 2021 Radiological Environmental Report REMP Extended Station Locations

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PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report Appendix B APPENDIX B Errata

PLANT FARLEY 2021 FNP Annual Radiological Environmental Operating Report Appendix B There are no errata for the 2021 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 2021 Vogtle Annual Radiological Environmental Operating Report for 2021

VOGTLE ELECTRIC GENERATING PLANT 2021 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

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PLANT VOGTLE 2021 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............................................................................................................ 23 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.................................................................. 28 4

Survey Summaries.................................................................................................... 31 4.1 Land Use Census................................................................................................... 31 4.2 Savannah River Survey.......................................................................................... 31 4.3 Meteorological Report Summary......................................................................... 32 5

Conclusions.............................................................................................................. 33 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 4-1. Land Use Census Results............................................................................................. 31 Figures Figure 3-1. Average Weekly Gross Beta Air Concentration.......................................................... 19 Figure 3-2. Average Quarterly Exposure from Direct Radiation................................................... 22 Figure 3-3. 2018 Average Exposure from Direct Radiation.......................................................... 22 Figure 3-4. 2018 Biological Media Average Cs-137 Concentrations............................................. 24

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report ii l P a g e Figure 3-5. 2018 Average Gross Beta Concentration in Raw and Finished Drinking Water......... 25 Figure 3-6. 2018 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 Appendix B - Errata Appendix C - Data

PLANT VOGTLE 2021 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 2021 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 2021 were reported herein in accordance with Technical Specification (TS) 5.6.2 and ODCM 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.

A description of the REMP is provided in Section 2 of this report

Section 3 provides a summary of the results, an assessment of any radiological impacts to the environment, and the results from the interlaboratory comparison

A summary of the land use census and the river survey are included in Section 4

Conclusions are included in Section 5

PLANT VOGTLE 2021 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.

Any Errata from previous reports are provided in Appendix B. All data points resulting from REMP sampling are provided in Appendix C.

During 2021 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 2021 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 Sample 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 Particulates1 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 2021 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 Sample 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 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 at control locations at a distance of about 10 miles or more Bimonthly Gamma isotopic analysis2,7/Bimonthly 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

PLANT VOGTLE 2021 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 Sample 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.

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 2021 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 2021 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 2021 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 2021 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, 2,907 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. When it is detected in effluents and REMP samples, it is also included in the REMP results. In 2021, Be-7 was not detected in any plant effluents and therefore it was not included in this report.

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 2021 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 2021 results were compared with previous results, including those obtained during pre-operation. No data points were excluded for violating Chauvenets Criterion.

PLANT VOGTLE 2021 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 363 10 23 9.3-50 (255/255)

River Road WSW 1.2 mi.

23.7 12.5-50 (51/51) 20.5 7.6-45.8 (51/51) 23.1 9.2-48.2 (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-131 357 70 NDM NDM NDM NDM Direct Radiation (mR/91 days)

Gamma Dose 157 8.7 4.3-13.4 (64/64)

SRS, Road A.13.1 ENE 4.8 mi.

15.2 13.9-16.4 (4/4) 9.4 4.7-16.4 (72/72) 8.3 4.8-12.6 (24/24)

Milk (pCi/l)

Gamma Isotopic 48 I-131 1

NDM NDM NDM Cs-134 15 NDM NDM NDM Cs-137 18 1.5 0.9-2.1 (5/24)

Girard Dairy S 5.5 mi 1.6 0.9-2.1 (5/24) 1.6 1.5-1.7 (4/21)

Ba-140 60 NDM NDM NDM La-140 15 NDM NDM NDM Vegetation (pCi/kg-wet)

Gamma Isotopic 30

PLANT VOGTLE 2021 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 33 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 11 2000 612 192-1400 (4/4)

Savannah River (RM 150.4) ENE 0.8 mi 612 192-1400 (4/4) 305 145-595 (4/4) 201 161-233 (4/3)

Raw Water Near Intakes to Water Treatment Plants (pCi/l)

Gross Beta 36 4

3.5 0.8-13.9 (20/20)

Cherokee Hill Water Treatment Plant, Port Wentworth, GA SSE 72 mi.

4.3 0.8-13.9 (12/12) 2.9 1-5.7 (11/12)

Gamma Isotopic 36

PLANT VOGTLE 2021 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 280 167-566 (8/8)

Cherokee Hill Water Treatment Plant, Port Wentworth, GA SSE 72 302 167-405 (4/4) 177 90.6-279 (4/4)

Finished Water at Water Treatment Plants (pCi/l)

Gross Beta 36 4

3.3 0.8-6.8 (30/30)

Augusta Water Treatment Plant NNW 29 mi.

3.59 1.76.8 (10/10) 2.6 1-4.2 (10/12)

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 2021 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 339 145-1050 (8/8)

Purrysburg Water Treatment Plant; Purrysburg, SC SSE 76 m

434 145-486 (4/4) 155 0-170 (3/4)

Anadromous Fish (pCi/kg-wet)

Gamma Isotopic 0

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 12 Be-7 655(d)

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

PLANT VOGTLE 2021 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 56.1 0-82.5 1/2 Savannah River, ESE, 4.3 mi.

56.1 0-82.5 1/2 136.3 0-136.3 2/2 Sediment (pCi/kg-dry)

Gamma Isotopic 4

Co-58 N/A NDM NDM Co-60 N/A NDM NDM Cs-134 150 NDM NDM Cs-137 180 94.4 82.2-106.7 2/2 Savannah River, ESE, 4.3 mi.

94.4 0-33.3 2/2 33.3 0-33.3 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 2021 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 2021 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 02-23-2021 Grass sample Unable to obtain samples Grass killed by freezing temperatures and heavy rains Will re-plant the plots again once the weather clears up and becomes warmer 03-16-2021 OSLD Unable to obtain samples OSLD at station Number 24 was not in the holder and could not be located OSLD holder was reenforced where it was attached oak tree and next quarters OSLD was put in place 04-18-2021 OSLD Unable to obtain samples OSLD at station Number 24 was not in the holder and could not be located OSLD holder was reenforced where it was attached oak tree and next quarters OSLD was put in place 10-12-2021 OSLD Unable to obtain samples OSLD at station Number 25 was not in the holder and could not be located OSLD holder was reenforced in its location and next quarters put in place 02-23-2021 Grass sample Unable to obtain samples Grass killed by freezing temperatures and heavy rains Will re-plant the plots again once the weather clears up and becomes warmer

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 2021 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 2021 annual average weekly gross beta activity at the indicator stations was 23 fCi/m3. It was 0.1 fCi/m3 less than the control station average of 23.1 fCi/m3.

The MDD was not calculated as the control average was higher.

The 2021 annual average weekly gross beta activity at the Girard community station was 20.5 fCi/m3 which was 2.6 fCi/m3 less than the control station average (23.1 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 2021 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 2021 23 23.1 20.5 Figure 3-1. Historic Average Weekly Gross Beta Air Concentration 0

10 20 30Pre-op198819901992199419961998200020022004200620082010201220142016201820202022 Concentration (fCi/m3)

YEAR Indicator Control Community

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report 20 l P a g e 3.1.2 Gamma Particulates and Airborne Radioiodine During 2021, 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 2018, no I-131 was detected in the air cartridges at either the indicator or control stations.

3.2 Direct Radiation In 2021, 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 2021 average quarterly exposure at the indicator stations (inner ring) was 8.7 mR with a range of 4.3 to 13.4 mR. The indicator station average was 0.4 mR greater than the control station average (8.3 mR with a range of 4.8 to 12.6 mR). The difference was less than the calculated MDD of 1.4 mR, so the difference was not statistically discernible. Over the operational history, the annual average quarterly exposures have shown little variation between the indicator and control stations. In select cases, the OSLD samples had extended exposure timeframes from collection to analysis in 2021. As such, the appropriate background exposure was subtracted from the result. However, the correlation between the indicator and control stations remains consistent with historical data.

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report 21 l P a g e The quarterly exposures acquired at the community/other (outer ring) stations during 2021 ranged from 4.7 to 16.4 mR with an average of 9.4 mR which was 1.1 mR higher than the control station average. The calculated MDD was 1.4 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 2021 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 2021 8.7 8.3 9.4

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report 22 l P a g e Figure 3-2. Average Quarterly Exposure from Direct Radiation Figure 3-3. 2021 Average Exposure from Direct Radiation 0

2 4

6 8

10 12 14 16 18 20Pre-op198819901992199419961998200020022004200620082010201220142016201820202022 Concentration (fCi/m3)

YEAR Indicator Control Outer Ring 5

6 7

8 9

10 Indicator Control Community/Other Girard (Station 35)

Rec Center (Station 43)

Concentration (mR)

PLANT VOGTLE 2021 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 (milk and fish). 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 2021 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 8 of 24 indicator samples (1.5 pCi/l average) and 3 of 24 control samples (1.6 pCi/l average). No MDD was applied because the indicator was less than the control. Figure 3-4 provides the 2021 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). 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 2021 (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 2021, there were also no other gamma isotopes detected in any Vogtle REMP vegetation samples.

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

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report 24 l P a g e 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 not caught during 2021. As such, there were no samples analyzed.

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 56.1 ranging from 0 to 82.5 pCi/kg-wet (detected in three samples), and 136.3 pCi/kg-wet at the control station (detected in one sample). No MDD was applied because the indicator was less than the control. All detected values were well below the MDC for Cs-137 in fish (150 pCi/kg-wet). No other gamma nuclides were discovered in 2021.

3.3.4 Biological Media Summary There were no statistical differences, trends, or anomalies associated with the 2021 biological media samples when compared to historical data. Figure 3-4 below, details the 2021 Cs-137 concentrations in the three media types.

Figure 3-4. 2021 Biological Media Average Cs-137 Concentrations 0

20 40 60 80 100 120 140 Milk Vegetation Fish Concentration (pcI/L or kg)

Indicator Control

PLANT VOGTLE 2021 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 2021, the indicator station average gross beta concentration in the raw drinking water was 3.5 pCi/L which was greater than the average gross beta concentration at the control station (2.9 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 2021, the indicator station average gross beta concentration in the finished drinking water was 3.3 pCi/L which is more than the average at the control station (2.6 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 2021 in comparison to the MDC.

As provided in Table 3-1, there were no positive results during 2021 from the gamma isotopic analysis of the raw and finished drinking water samples.

Regarding tritium, the average raw drinking water indicator concentration was 280 pCi/L which was 103 pCi/L greater than the average concentration found at the control station (177 pCi/L).

This difference does exceed the MDD of 113 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 2021 was 339 pCi/L which was 184 pCi/L greater than the average concentration found at the control station (155 pCi/L). The MDD was calculated at 240 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 2021 VEGP Annual Radiological Environmental Operating Report 26 l P a g e Figure 3-5. 2021 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 2021 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 612 pCi/L which was 411 pCi/L greater than the average at the control station (201 pCi/L). The river water tritium MDD was calculated to be 440 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 145 pCi/L to 595 pCi/L with an average of 305 pCi/L. The difference between the Station 84 and the control station was 104 pCi/L. The MDD was calculated to be 219 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 2021 average tritium concentrations across the three water sample types.

0 0.5 1

1.5 2

2.5 3

3.5 4

4.5 5

Raw Drinking Water Finished Drinking Water Concentration (pCi/L)

Indicator Control MDC

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report 27 l P a g e Figure 3-6. 2021 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 2021 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.

For Cs-137, the average concentration at the indicator station during 2021 was 94.4 pCi/kg-dry which was 61.1 pCi/kg-dry greater than that at the control station (33.3 pCi/kg-dry). The concentration of Cs-137 found at the indicator and control stations could be attributed to plant effluents or to other facilities that release radioactive effluents upstream of the sample location.

There are not enough sample points to calculate a MDD value; however, both the indicator and control values for Cs-137 were less than the MDC of 180 pCi/kg-dry and therefore no impact to the environment was indicated.

There were no other radionuclides detected in the 2021 sediment samples.

0 500 1000 1500 2000 2500 3000 3500 4000 River Water Raw Drinking Water Finished Drinking Water Concentration (pCi/L)

Indicator Control Special MDC

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report 28 l P a g e 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 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 is 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 Fe-59. For Fe-59, an investigation is undertaken when the coefficient of variation exceeds the values shown on Table 3-6 below:

Table 3-6. Interlaboratory Comparison Limits Nuclide Concentration

Percent Coefficient of Variation Fe-59

<80 25

>80 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:

gross beta and gamma isotopic analyses of an air filter

gamma isotopic analyses of milk samples

gross beta, tritium and gamma isotopic analyses of water samples The 2021 analyses included tritium, gross beta and gamma emitting radio-nuclides in different matrices. The results for all analyses were within acceptable limits for accuracy.

PLANT VOGTLE 2021 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 (1S)

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

I-131 3/11/2021 89.7 88.1 2.51 1.47 5.60 0.31 GAMMA ISOTOPIC ANALYSIS OF AN AIR FILTER (pCi/filter)

Ce-141 9/9/2021 123 116 6.27 1.94 7.25 0.82 Co-58 127 119 4.52 1.99 5.65 1.15 Co-60 151 147 1.76 2.45 4.05 0.66 Cs-134 98.6 94.3 3.56 1.58 5.20 0.83 Cs-137 121 113 4.02 1.89 5.44 1.23 Fe-59 107 103 4.72 1.72 6.82 0.52 Mn-54 144 130 2.83 2.17 4.67 2.12 Zn-65 176 155 7.60 2.59 6.48 1.85 GROSS BETA ANALYSIS OF AN AIR FILTER (PCI/FILTER)

Gross Beta 6/3/2021 123 130 3.91 2.17 4.22 1.35 GAMMA ISOTOPIC ANALYSIS OF A MILK SAMPLE (PCI/LITER)

Ce-141 123 114 3.91 1.91 7.3 0.96 Co-58 9/9/2021 125 118 5.49 1.97 7.33 0.79 Co-60 155 145 6.18 2.42 6.19 1.05 Cs-134 95.3 93.1 4.43 1.56 6.96 0.33 Cs-137 121 112 5.89 1.87 7.61 0.94 Fe-59 107 102 3.32 1.70 8.17 0.55 I-131 89.5 85.6 9.22 1.43 13.01 0.33 Mn-54 140 128 4.27 2.14 6.40 1.32 Zn-65 170 153 11.54 2.56 9.70 1.01 GROSS BETA ANALYSIS OF WATER SAMPLE (PCI/LITER)

Gross Beta 6/3/2021 214 258 27.58 4.31 13.79 1.51 12/2/2021 304 281 6.10 4.69 4.06

-1.87 GAMMA ISOTOPIC ANALYSIS OF WATER SAMPLES (PCI/LITER)

PLANT VOGTLE 2021 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 (1S)

Percent Coefficient of Variation Normalized Deviation Ce-141 6/3/2021 187 180 8.62 3.00 7.38

-0.51 Co-58 187 179 9.64 2.98 7.36

-0.56 Co-60 225 215 4.96 3.59 4.95

-0.89 Cs-134 212 213 4.69 3.56 4.86 0.14 Cs-137 192 188 4.00 3.13 5.59

-0.41 Fe-59 178 183 7.52 3.06 7.55 0.36 I-131 95.7 92.0 5.79 1.54 10.44

-0.37 Mn-54 264 249 12.79 4.16 6.82

-0.84 Zn-65 319 300 17.65 5.01 7.77

-0.78 TRITIUM ANALYSIS OF WATER SAMPLES (PCI/LITER)

H-3 9/9/2021 10800 11700 428.02 195 4.75

-1.66 GAMMA ISOTOPIC ANALYSIS OF VEGETATION SAMPLES (PCI/KG)

Ce-141 162 148 9.93 2.48 10.42 0.85 Co-58 6/3/2021 164 147 13.6 2.46 11.45

-0.92 Co-60 179 177 8.64 2.96 7.81

-0.16 Cs-134 180 176 11.0 2.93 8.19

-0.28 Cs-137 170 155 7.90 2.58 8.71

-0.98 Fe-59 152 151 12.7 2.52 13.65

-0.07 Mn-54 230 205 13.4 3.43 8.65

-1.27 Zn-65 275 247 28.7 4.13 13.73

-0.73

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report 31 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 the fall of 2021 to verify the locations of the nearest radiological receptor within five miles. The census results, shown in Table 4-1, indicated no major changes from 2020, therefore, 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 29, 2021 to identify any new withdrawal of water from the river for drinking, irrigation, or construction purposes. No new usage was visually identified. These results were verified with both the Georgia Department of

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report 32 l P a g e Natural Resources and the South Carolina Department of Health and Environmental Control (SC DEHEC) in October 2021. Each of these agencies confirmed 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 2021, the meteorological tower results were comparable to previous years, precipitation amounts (60.76) and wind direction (from southwest at 10m, from the southwest at 60m) were also similar.

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report 33 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 2021 activities associated with the REMP, SNC offers the following conclusions:

Samples were collected and there were no deviations or anomalies that negatively affected the quality of the REMP

Land use census and river survey did not reveal any significant changes

Analytical results were below reporting levels

These values were consistent with historical results, which indicate no adverse radiological environmental impacts associated with the operation of VEGP

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PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report Appendix A APPENDIX A Maps

Legend:

Indicator Stations -

Control Stations -

Other Stations -

Drawn by:

Appendix A Map A-1 C. Groce S

SW W

NW N

NE E

SE Vogtle Electric Generating Plant 2021 Annual Radiological Environmental Report REMP Stations in Plant Vicinity April 19, 2022

Legend:

Indicator Stations -

Control Stations -

Other Stations -

Drawn by:

Appendix A Map A-2 C. Groce 10 Miles Vogtle Electric Generating Plant 2021 Annual Radiological Environmental Report REMP Stations within 10 miles April 19, 2022

Legend:

Indicator Stations -

Control Stations -

Other Stations -

Drawn by:

Appendix A Map A-3 C. Groce Vogtle Electric Generating Plant 2021 Annual Radiological Environmental Report Extended REMP Stations 10 Miles April 19, 2022

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PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report Appendix B APPENDIX B Errata

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report Appendix C There are no errata for the 2021 reporting year.

PLANT VOGTLE 2021 VEGP Annual Radiological Environmental Operating Report Appendix C APPENDIX C Data The following pages contain the individual data points from the 2021 reporting year. The units for the data points varies by media, as follows:

Airborne Radioiodine and Particulates/Water/Milk - picocuries/liter (pCi/l)

Sediment/Vegetation/Fish - picocuries/kilogram (pCi/kg)

Direct Radiation - millirem (mR)

cust_id profile_name analyte_name cust_sample_id collect_date result result_units lab_sample_id revised date Vogtle DW - Gamma Co-58 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma Co-60 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma Zn-65 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma Zr-95 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma I-131 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma Cs-134 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma Cs-137 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma Ba-140 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma La-140 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma Be-7 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma K-40 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma Fe-59 RAUC 1/5/2021 0 pCi/L 127929001 1/5/2021 Vogtle DW - Gamma Co-58 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma Co-60 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma Zn-65 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma Zr-95 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma I-131 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma Cs-134 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma Cs-137 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma Ba-140 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma La-140 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma Be-7 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma K-40 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma Fe-59 FAUC 1/5/2021 0 pCi/L 127929002 1/5/2021 Vogtle DW - Gamma K-40 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma La-140 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma Co-60 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma Fe-59 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma Co-58 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma Zn-65 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma Zr-95 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma I-131 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma Cs-134 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma Cs-137 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma Ba-140 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma Be-7 FPUR 1/5/2021 0 pCi/L 127929006 1/5/2021 Vogtle DW - Gamma K-40 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma Fe-59 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma Co-58 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma Co-60 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma Zn-65 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma Zr-95 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma Cs-134 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma I-131 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma Cs-137 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma Ba-140 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma La-140 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma Be-7 RPUR 1/5/2021 0 pCi/L 127929005 1/5/2021 Vogtle DW - Gamma I-131 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma Cs-134 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma Cs-137 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma Ba-140 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle Water H-3 Tritium 1495 1/19/2021 216 pCi/L 128371001 1/19/2021 Vogtle DW - Gamma La-140 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma Be-7 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma K-40 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma Fe-59 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma Co-58 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma Co-60 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma Zn-65 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma Zr-95 FPOR 1/5/2021 0 pCi/L 127929004 1/5/2021 Vogtle DW - Gamma I-131 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma Cs-134 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma Cs-137 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma Ba-140 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma La-140 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma Be-7 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma K-40 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma Fe-59 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma Co-58 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma Co-60 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma Zn-65 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle DW - Gamma Zr-95 RPOR 1/5/2021 0 pCi/L 127929003 1/5/2021 Vogtle Charcoal Ct I-131 WAY 1/5/2021 0 pCi/m3 127934001 1/5/2021 Vogtle Charcoal Ct I-131 GIR 1/5/2021 0 pCi/m3 127934002 1/5/2021 Vogtle Charcoal Ct I-131 SIM 1/5/2021 0 pCi/m3 127934003 1/5/2021 Vogtle Charcoal Ct I-131 RRD 1/5/2021 0 pCi/m3 127934006 1/5/2021 Vogtle Charcoal Ct I-131 HAN 1/5/2021 0 pCi/m3 127934007 1/5/2021 Vogtle Charcoal Ct I-131 MET 1/5/2021 0 pCi/m3 127934005 1/5/2021 Vogtle Charcoal Ct I-131 DIS 1/5/2021 0 pCi/m3 127934004 1/5/2021 Vogtle Milk Gamma Cs-137 GIR 1/12/2021 1.3705 pCi/L 128032002 1/12/2021 Vogtle Milk Gamma I-131 GIR 1/12/2021 0 pCi/L 128032002 1/12/2021 Vogtle Milk Gamma Cs-134 GIR 1/12/2021 0 pCi/L 128032002 1/12/2021

Vogtle Milk Gamma Ba-140 GIR 1/12/2021 0 pCi/L 128032002 1/12/2021 Vogtle Milk Gamma K-40 GIR 1/12/2021 1415.5 pCi/L 128032002 1/12/2021 Vogtle Milk Gamma Be-7 GIR 1/12/2021 0 pCi/L 128032002 1/12/2021 Vogtle Milk Gamma La-140 GIR 1/12/2021 0 pCi/L 128032002 1/12/2021 Vogtle Charcoal Ct I-131 GIR 1/12/2021 0 pCi/m3 128042002 1/12/2021 Vogtle Charcoal Ct I-131 WAY 1/12/2021 0 pCi/m3 128042001 1/12/2021 Vogtle Milk Gamma I-131 Milky Way 1/12/2021 0 pCi/L 128032001 1/12/2021 Vogtle Milk Gamma Cs-134 Milky Way 1/12/2021 0 pCi/L 128032001 1/12/2021 Vogtle Milk Gamma Ba-140 Milky Way 1/12/2021 0 pCi/L 128032001 1/12/2021 Vogtle Milk Gamma La-140 Milky Way 1/12/2021 0 pCi/L 128032001 1/12/2021 Vogtle Milk Gamma Be-7 Milky Way 1/12/2021 0 pCi/L 128032001 1/12/2021 Vogtle Milk Gamma K-40 Milky Way 1/12/2021 1437.8 pCi/L 128032001 1/12/2021 Vogtle Water H-3 Tritium 1495 4/13/2021 263 pCi/L 129221003 4/13/2021 Vogtle Milk Gamma Cs-137 Milky Way 1/12/2021 0 pCi/L 128032001 1/12/2021 Vogtle Charcoal Ct I-131 HAN 1/12/2021 0 pCi/m3 128042007 1/12/2021 Vogtle Charcoal Ct I-131 RRD 1/12/2021 0 pCi/m3 128042006 1/12/2021 Vogtle Charcoal Ct I-131 SIM 1/12/2021 0 pCi/m3 128042003 1/12/2021 Vogtle Charcoal Ct I-131 MET 1/12/2021 0 pCi/m3 128042005 1/12/2021 Vogtle Charcoal Ct I-131 DIS 1/12/2021 0 pCi/m3 128042004 1/12/2021 Vogtle Charcoal Ct I-131 WAY 1/19/2021 0 pCi/m3 128182001 1/19/2021 Vogtle Charcoal Ct I-131 GIR 1/19/2021 0 pCi/m3 128182002 1/19/2021 Vogtle Charcoal Ct I-131 HAN 1/19/2021 0 pCi/m3 128182007 1/19/2021 Vogtle Charcoal Ct I-131 RRD 1/19/2021 0 pCi/m3 128182006 1/19/2021 Vogtle Charcoal Ct I-131 SIM 1/19/2021 0 pCi/m3 128182003 1/19/2021 Vogtle Charcoal Ct I-131 MET 1/19/2021 0 pCi/m3 128182005 1/19/2021 Vogtle Charcoal Ct I-131 DIS 1/19/2021 0 pCi/m3 128182004 1/19/2021 Vogtle River Water Zr-95 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water I-131 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water Cs-134 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water Cs-137 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water Ba-140 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water La-140 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water Be-7 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water K-40 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water Fe-59 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water Co-58 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water Co-60 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water Zn-65 1495 1/19/2021 0 pCi/L 128180002 1/19/2021 Vogtle River Water Cs-137 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water Ba-140 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water Be-7 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water K-40 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water La-140 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water Fe-59 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water Co-58 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water Co-60 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water Zn-65 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water Zr-95 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle Water H-3 Tritium 1495 7/13/2021 145 pCi/L 130439001 7/13/2021 Vogtle River Water I-131 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle River Water Cs-134 1504 1/19/2021 0 pCi/L 128180001 1/19/2021 Vogtle Milk Gamma Cs-137 GIR 1/26/2021 1.5484 pCi/L 128251002 1/26/2021 Vogtle Milk Gamma I-131 GIR 1/26/2021 0 pCi/L 128251002 1/26/2021 Vogtle Milk Gamma K-40 GIR 1/26/2021 1449.7 pCi/L 128251002 1/26/2021 Vogtle Milk Gamma Ba-140 GIR 1/26/2021 0 pCi/L 128251002 1/26/2021 Vogtle Milk Gamma Cs-134 GIR 1/26/2021 0 pCi/L 128251002 1/26/2021 Vogtle Milk Gamma La-140 GIR 1/26/2021 0 pCi/L 128251002 1/26/2021 Vogtle Milk Gamma Be-7 GIR 1/26/2021 0 pCi/L 128251002 1/26/2021 Vogtle Charcoal Ct I-131 GIR 1/26/2021 0 pCi/m3 128276002 1/26/2021 Vogtle Vegetation I-131 WAY 1/26/2021 0 pCi/Kg 128277001 1/26/2021 Vogtle Vegetation Be-7 WAY 1/26/2021 1604.6 pCi/Kg 128277001 1/26/2021 Vogtle Vegetation K-40 WAY 1/26/2021 5122.7 pCi/Kg 128277001 1/26/2021 Vogtle Vegetation Cs-134 WAY 1/26/2021 0 pCi/Kg 128277001 1/26/2021 Vogtle Vegetation Cs-137 WAY 1/26/2021 0 pCi/Kg 128277001 1/26/2021 Vogtle Charcoal Ct I-131 WAY 1/26/2021 0 pCi/m3 128276001 1/26/2021 Vogtle Milk Gamma Cs-134 Milky Way 1/26/2021 0 pCi/L 128251001 1/26/2021 Vogtle Milk Gamma Ba-140 Milky Way 1/26/2021 0 pCi/L 128251001 1/26/2021 Vogtle Milk Gamma La-140 Milky Way 1/26/2021 0 pCi/L 128251001 1/26/2021 Vogtle Milk Gamma Be-7 Milky Way 1/26/2021 0 pCi/L 128251001 1/26/2021 Vogtle Milk Gamma K-40 Milky Way 1/26/2021 1510.1 pCi/L 128251001 1/26/2021 Vogtle Milk Gamma I-131 Milky Way 1/26/2021 0 pCi/L 128251001 1/26/2021 Vogtle Milk Gamma Cs-137 Milky Way 1/26/2021 0 pCi/L 128251001 1/26/2021 Vogtle Vegetation I-131 HAN 1/26/2021 0 pCi/Kg 128277003 1/26/2021 Vogtle Vegetation K-40 HAN 1/26/2021 3826.3 pCi/Kg 128277003 1/26/2021 Vogtle Vegetation Be-7 HAN 1/26/2021 1753.9 pCi/Kg 128277003 1/26/2021 Vogtle Vegetation Cs-134 HAN 1/26/2021 0 pCi/Kg 128277003 1/26/2021 Vogtle Vegetation Cs-137 HAN 1/26/2021 0 pCi/Kg 128277003 1/26/2021 Vogtle Charcoal Ct I-131 HAN 1/26/2021 0 pCi/m3 128276007 1/26/2021 Vogtle Charcoal Ct I-131 RRD 1/26/2021 0 pCi/m3 128276006 1/26/2021 Vogtle Charcoal Ct I-131 SIM 1/26/2021 0 pCi/m3 128276003 1/26/2021 Vogtle Vegetation Be-7 SIM 1/26/2021 1081.1 pCi/Kg 128277002 1/26/2021 Vogtle Water H-3 Tritium 1495 10/19/2021 595 pCi/L 131708003 10/19/2021 Vogtle Vegetation K-40 SIM 1/26/2021 5974 pCi/Kg 128277002 1/26/2021 Vogtle Vegetation Cs-137 SIM 1/26/2021 0 pCi/Kg 128277002 1/26/2021 Vogtle Vegetation Cs-134 SIM 1/26/2021 0 pCi/Kg 128277002 1/26/2021

Vogtle Vegetation I-131 SIM 1/26/2021 0 pCi/Kg 128277002 1/26/2021 Vogtle Charcoal Ct I-131 MET 1/26/2021 0 pCi/m3 128276005 1/26/2021 Vogtle Charcoal Ct I-131 DIS 1/26/2021 0 pCi/m3 128276004 1/26/2021 Vogtle Charcoal Ct I-131 GIR 2/1/2021 0 pCi/m3 128357002 2/1/2021 Vogtle Charcoal Ct I-131 WAY 2/1/2021 0 pCi/m3 128357001 2/1/2021 Vogtle Charcoal Ct I-131 HAN 2/1/2021 0 pCi/m3 128357007 2/1/2021 Vogtle Charcoal Ct I-131 RRD 2/1/2021 0 pCi/m3 128357006 2/1/2021 Vogtle Charcoal Ct I-131 SIM 2/1/2021 0 pCi/m3 128357003 2/1/2021 Vogtle Charcoal Ct I-131 MET 2/1/2021 0 pCi/m3 128357005 2/1/2021 Vogtle Charcoal Ct I-131 DIS 2/1/2021 0 pCi/m3 128357004 2/1/2021 Vogtle DW - Gamma I-131 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Cs-134 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Ba-140 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Cs-137 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma La-140 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Be-7 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma K-40 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Fe-59 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Co-58 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Co-60 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Zn-65 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Zr-95 RAUC 2/2/2021 0 pCi/L 128370001 2/2/2021 Vogtle DW - Gamma Ba-140 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma La-140 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma Be-7 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma K-40 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma Fe-59 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma Co-58 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma Co-60 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma Zn-65 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma Zr-95 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma I-131 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma Cs-134 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma Cs-137 FAUC 2/2/2021 0 pCi/L 128370002 2/2/2021 Vogtle DW - Gamma I-131 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Cs-134 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Cs-137 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Ba-140 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma La-140 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Be-7 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma K-40 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Fe-59 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Co-58 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Co-60 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Zn-65 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Zr-95 FPUR 2/2/2021 0 pCi/L 128370006 2/2/2021 Vogtle DW - Gamma Ba-140 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma La-140 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma Be-7 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma K-40 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma Fe-59 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma Co-58 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma Co-60 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma Zn-65 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma Zr-95 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle Water H-3 Tritium 1504 1/19/2021 324 pCi/L 128371002 1/19/2021 Vogtle DW - Gamma I-131 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma Cs-134 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma Cs-137 RPUR 2/2/2021 0 pCi/L 128370005 2/2/2021 Vogtle DW - Gamma Zn-65 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma Zr-95 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma I-131 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma Cs-134 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma Cs-137 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma Ba-140 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma La-140 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma Be-7 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma K-40 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma Fe-59 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma Co-58 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma Co-60 FPOR 2/2/2021 0 pCi/L 128370004 2/2/2021 Vogtle DW - Gamma I-131 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma Cs-134 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma Cs-137 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma Ba-140 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma La-140 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma Be-7 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma K-40 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma Fe-59 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma Co-58 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma Co-60 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma Zn-65 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle DW - Gamma Zr-95 RPOR 2/2/2021 0 pCi/L 128370003 2/2/2021 Vogtle Charcoal Ct I-131 WAY 2/9/2021 0 pCi/m3 128459001 2/9/2021 Vogtle Milk Gamma I-131 GIR 2/9/2021 0 pCi/L 128451002 2/9/2021

Vogtle Milk Gamma Cs-134 GIR 2/9/2021 0 pCi/L 128451002 2/9/2021 Vogtle Milk Gamma Ba-140 GIR 2/9/2021 0 pCi/L 128451002 2/9/2021 Vogtle Milk Gamma La-140 GIR 2/9/2021 0 pCi/L 128451002 2/9/2021 Vogtle Milk Gamma Be-7 GIR 2/9/2021 0 pCi/L 128451002 2/9/2021 Vogtle Milk Gamma K-40 GIR 2/9/2021 1457.8 pCi/L 128451002 2/9/2021 Vogtle Milk Gamma Cs-137 GIR 2/9/2021 0 pCi/L 128451002 2/9/2021 Vogtle Water H-3 Tritium 1504 4/13/2021 192 pCi/L 129221002 4/13/2021 Vogtle Milk Gamma Cs-137 Milky Way 2/9/2021 1.6772 pCi/L 128451001 2/9/2021 Vogtle Milk Gamma I-131 Milky Way 2/9/2021 0 pCi/L 128451001 2/9/2021 Vogtle Milk Gamma Be-7 Milky Way 2/9/2021 0 pCi/L 128451001 2/9/2021 Vogtle Milk Gamma La-140 Milky Way 2/9/2021 0 pCi/L 128451001 2/9/2021 Vogtle Milk Gamma Ba-140 Milky Way 2/9/2021 0 pCi/L 128451001 2/9/2021 Vogtle Milk Gamma Cs-134 Milky Way 2/9/2021 0 pCi/L 128451001 2/9/2021 Vogtle Milk Gamma K-40 Milky Way 2/9/2021 1386.1 pCi/L 128451001 2/9/2021 Vogtle Charcoal Ct I-131 GIR 2/9/2021 0 pCi/m3 128459002 2/9/2021 Vogtle Charcoal Ct I-131 HAN 2/9/2021 0 pCi/m3 128459007 2/9/2021 Vogtle Charcoal Ct I-131 RRD 2/9/2021 0 pCi/m3 128459006 2/9/2021 Vogtle Charcoal Ct I-131 SIM 2/9/2021 0 pCi/m3 128459003 2/9/2021 Vogtle Charcoal Ct I-131 MET 2/9/2021 0 pCi/m3 128459005 2/9/2021 Vogtle Charcoal Ct I-131 DIS 2/9/2021 0 pCi/m3 128459004 2/9/2021 Vogtle River Water Cs-134 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water Cs-137 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water Ba-140 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water La-140 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water Be-7 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water K-40 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water Fe-59 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water Co-58 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water Co-60 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water Zn-65 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water Zr-95 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water I-131 1495 2/9/2021 0 pCi/L 128452003 2/9/2021 Vogtle River Water Co-58 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water Co-60 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water Zn-65 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water Zr-95 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water I-131 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water Cs-134 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water Cs-137 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water Ba-140 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water La-140 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water Be-7 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water K-40 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water Fe-59 1504 2/9/2021 0 pCi/L 128452002 2/9/2021 Vogtle River Water Fe-59 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water Co-58 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water Co-60 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water Zn-65 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water Zr-95 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water I-131 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water Cs-134 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water Cs-137 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water Ba-140 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water La-140 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle River Water Be-7 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle Water H-3 Tritium 1504 7/13/2021 532 pCi/L 130439002 7/13/2021 Vogtle River Water K-40 1512 2/9/2021 0 pCi/L 128452001 2/9/2021 Vogtle Charcoal Ct I-131 DIS 2/15/2021 0 pCi/m3 128535004 2/15/2021 Vogtle Charcoal Ct I-131 MET 2/15/2021 0 pCi/m3 128535005 2/15/2021 Vogtle Charcoal Ct I-131 SIM 2/15/2021 0 pCi/m3 128535003 2/15/2021 Vogtle Charcoal Ct I-131 GIR 2/15/2021 0 pCi/m3 128535002 2/15/2021 Vogtle Charcoal Ct I-131 WAY 2/15/2021 0 pCi/m3 128535001 2/15/2021 Vogtle Charcoal Ct I-131 HAN 2/15/2021 0 pCi/m3 128535007 2/15/2021 Vogtle Charcoal Ct I-131 RRD 2/15/2021 0 pCi/m3 128535006 2/15/2021 Vogtle Milk Gamma Cs-134 Milky Way 2/23/2021 0 pCi/L 128640001 2/23/2021 Vogtle Milk Gamma I-131 Milky Way 2/23/2021 0 pCi/L 128640001 2/23/2021 Vogtle Milk Gamma K-40 Milky Way 2/23/2021 1402 pCi/L 128640001 2/23/2021 Vogtle Milk Gamma Be-7 Milky Way 2/23/2021 0 pCi/L 128640001 2/23/2021 Vogtle Milk Gamma La-140 Milky Way 2/23/2021 0 pCi/L 128640001 2/23/2021 Vogtle Milk Gamma Ba-140 Milky Way 2/23/2021 0 pCi/L 128640001 2/23/2021 Vogtle Milk Gamma Cs-137 Milky Way 2/23/2021 0 pCi/L 128640001 2/23/2021 Vogtle Charcoal Ct I-131 WAY 2/23/2021 0 pCi/m3 128644001 2/23/2021 Vogtle Milk Gamma Cs-134 GIR 2/23/2021 0 pCi/L 128640002 2/23/2021 Vogtle Milk Gamma I-131 GIR 2/23/2021 0 pCi/L 128640002 2/23/2021 Vogtle Milk Gamma K-40 GIR 2/23/2021 1375 pCi/L 128640002 2/23/2021 Vogtle Milk Gamma Ba-140 GIR 2/23/2021 0 pCi/L 128640002 2/23/2021 Vogtle Milk Gamma La-140 GIR 2/23/2021 0 pCi/L 128640002 2/23/2021 Vogtle Milk Gamma Be-7 GIR 2/23/2021 0 pCi/L 128640002 2/23/2021 Vogtle Milk Gamma Cs-137 GIR 2/23/2021 0 pCi/L 128640002 2/23/2021 Vogtle Charcoal Ct I-131 GIR 2/23/2021 0 pCi/m3 128644002 2/23/2021 Vogtle Charcoal Ct I-131 SIM 2/23/2021 0 pCi/m3 128644003 2/23/2021 Vogtle Charcoal Ct I-131 HAN 2/23/2021 0 pCi/m3 128644007 2/23/2021 Vogtle Charcoal Ct I-131 RRD 2/23/2021 0 pCi/m3 128644006 2/23/2021 Vogtle Charcoal Ct I-131 MET 2/23/2021 0 pCi/m3 128644005 2/23/2021 Vogtle Charcoal Ct I-131 DIS 2/23/2021 0 pCi/m3 128644004 2/23/2021

Vogtle Water H-3 Tritium 1504 10/19/2021 1400 pCi/L 131708002 10/19/2021 Vogtle DW - Gamma Fe-59 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma Co-58 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma Co-60 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma Zn-65 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma Zr-95 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma I-131 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma Cs-134 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma Cs-137 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma Ba-140 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma La-140 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma Be-7 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma K-40 RPOR 3/1/2021 0 pCi/L 128781003 3/1/2021 Vogtle DW - Gamma Co-58 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma Co-60 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma Zn-65 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma Zr-95 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma I-131 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma Cs-134 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma Cs-137 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma Ba-140 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma La-140 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma Be-7 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma K-40 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma Fe-59 FPOR 3/1/2021 0 pCi/L 128781004 3/1/2021 Vogtle DW - Gamma Fe-59 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma Co-58 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma Co-60 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma Zn-65 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma Zr-95 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma I-131 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma Cs-134 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma Cs-137 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma Ba-140 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma La-140 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma Be-7 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma K-40 FPUR 3/1/2021 0 pCi/L 128781006 3/1/2021 Vogtle DW - Gamma Zr-95 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma I-131 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma Cs-134 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma Cs-137 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma Ba-140 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma La-140 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma Be-7 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma K-40 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma Fe-59 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma Co-58 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma Co-60 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma Zn-65 RPUR 3/1/2021 0 pCi/L 128781005 3/1/2021 Vogtle DW - Gamma La-140 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Be-7 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma K-40 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Fe-59 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Co-58 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Co-60 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Zn-65 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Zr-95 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma I-131 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Cs-134 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Cs-137 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Ba-140 RAUC 3/2/2021 0 pCi/L 128781001 3/2/2021 Vogtle DW - Gamma Cs-137 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma Ba-140 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma La-140 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma Be-7 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma K-40 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma Fe-59 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma Co-58 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma Co-60 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle Water H-3 Tritium 1512 4/13/2021 161 pCi/L 129221001 4/13/2021 Vogtle DW - Gamma Zn-65 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma Zr-95 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma I-131 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle DW - Gamma Cs-134 FAUC 3/2/2021 0 pCi/L 128781002 3/2/2021 Vogtle Charcoal Ct I-131 WAY 3/2/2021 0 pCi/m3 128783001 3/2/2021 Vogtle Charcoal Ct I-131 DIS 3/2/2021 0 pCi/m3 128783004 3/2/2021 Vogtle Charcoal Ct I-131 MET 3/2/2021 0 pCi/m3 128783005 3/2/2021 Vogtle Charcoal Ct I-131 HAN 3/2/2021 0 pCi/m3 128783007 3/2/2021 Vogtle Charcoal Ct I-131 RRD 3/2/2021 0 pCi/m3 128783006 3/2/2021 Vogtle Charcoal Ct I-131 SIM 3/2/2021 0 pCi/m3 128783003 3/2/2021 Vogtle Charcoal Ct I-131 GIR 3/2/2021 0 pCi/m3 128783002 3/2/2021 Vogtle Charcoal Ct I-131 GIR 3/9/2021 0 pCi/m3 128864002 3/9/2021 Vogtle Milk Gamma Be-7 GIR 3/9/2021 0 pCi/L 128857002 3/9/2021 Vogtle Milk Gamma K-40 GIR 3/9/2021 1439.3 pCi/L 128857002 3/9/2021 Vogtle Milk Gamma Ba-140 GIR 3/9/2021 0 pCi/L 128857002 3/9/2021

Vogtle Milk Gamma La-140 GIR 3/9/2021 0 pCi/L 128857002 3/9/2021 Vogtle Milk Gamma Cs-134 GIR 3/9/2021 0 pCi/L 128857002 3/9/2021 Vogtle Milk Gamma I-131 GIR 3/9/2021 0 pCi/L 128857002 3/9/2021 Vogtle Milk Gamma Cs-137 GIR 3/9/2021 0 pCi/L 128857002 3/9/2021 Vogtle Charcoal Ct I-131 WAY 3/9/2021 0 pCi/m3 128864001 3/9/2021 Vogtle Milk Gamma Be-7 Milky Way 3/9/2021 0 pCi/L 128857001 3/9/2021 Vogtle Milk Gamma La-140 Milky Way 3/9/2021 0 pCi/L 128857001 3/9/2021 Vogtle Milk Gamma Ba-140 Milky Way 3/9/2021 0 pCi/L 128857001 3/9/2021 Vogtle Milk Gamma Cs-134 Milky Way 3/9/2021 0 pCi/L 128857001 3/9/2021 Vogtle Milk Gamma I-131 Milky Way 3/9/2021 0 pCi/L 128857001 3/9/2021 Vogtle Milk Gamma K-40 Milky Way 3/9/2021 1403.5 pCi/L 128857001 3/9/2021 Vogtle Milk Gamma Cs-137 Milky Way 3/9/2021 0 pCi/L 128857001 3/9/2021 Vogtle Charcoal Ct I-131 HAN 3/9/2021 0 pCi/m3 128864007 3/9/2021 Vogtle Charcoal Ct I-131 RRD 3/9/2021 0 pCi/m3 128864006 3/9/2021 Vogtle Charcoal Ct I-131 SIM 3/9/2021 0 pCi/m3 128864003 3/9/2021 Vogtle Charcoal Ct I-131 MET 3/9/2021 0 pCi/m3 128864005 3/9/2021 Vogtle Charcoal Ct I-131 DIS 3/9/2021 0 pCi/m3 128864004 3/9/2021 Vogtle River Water Zr-95 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water I-131 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water Cs-134 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water Cs-137 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water Ba-140 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water La-140 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water Be-7 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water K-40 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water Fe-59 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water Co-58 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water Co-60 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle River Water Zn-65 1495 3/9/2021 0 pCi/L 128858003 3/9/2021 Vogtle Water H-3 Tritium 1512 7/13/2021 209 pCi/L 130439003 7/13/2021 Vogtle River Water Fe-59 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water Co-58 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water Co-60 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water Zn-65 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water Zr-95 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water I-131 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water Cs-134 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water Cs-137 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water Ba-140 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water La-140 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water Be-7 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water K-40 1504 3/9/2021 0 pCi/L 128858002 3/9/2021 Vogtle River Water Zn-65 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water Zr-95 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water I-131 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle Water H-3 Tritium 1512 10/19/2021 233 pCi/L 131708001 10/19/2021 Vogtle River Water Ba-140 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water La-140 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water Be-7 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water K-40 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water Fe-59 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water Co-58 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water Cs-134 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water Cs-137 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle River Water Co-60 1512 3/9/2021 0 pCi/L 128858001 3/9/2021 Vogtle Charcoal Ct I-131 GIR 3/16/2021 0 pCi/m3 128932002 3/16/2021 Vogtle Charcoal Ct I-131 WAY 3/16/2021 0 pCi/m3 128932001 3/16/2021 Vogtle Charcoal Ct I-131 HAN 3/16/2021 0 pCi/m3 128932007 3/16/2021 Vogtle Charcoal Ct I-131 RRD 3/16/2021 0 pCi/m3 128932006 3/16/2021 Vogtle Charcoal Ct I-131 SIM 3/16/2021 0 pCi/m3 128932003 3/16/2021 Vogtle Charcoal Ct I-131 MET 3/16/2021 0 pCi/m3 128932005 3/16/2021 Vogtle Charcoal Ct I-131 GIR 3/23/2021 0 pCi/m3 129000002 3/23/2021 Vogtle Milk Gamma I-131 GIR 3/23/2021 0 pCi/L 128986002 3/23/2021 Vogtle Milk Gamma Cs-134 GIR 3/23/2021 0 pCi/L 128986002 3/23/2021 Vogtle Milk Gamma Ba-140 GIR 3/23/2021 0 pCi/L 128986002 3/23/2021 Vogtle Milk Gamma La-140 GIR 3/23/2021 0 pCi/L 128986002 3/23/2021 Vogtle Milk Gamma Be-7 GIR 3/23/2021 0 pCi/L 128986002 3/23/2021 Vogtle Milk Gamma K-40 GIR 3/23/2021 1318.1 pCi/L 128986002 3/23/2021 Vogtle Milk Gamma Cs-137 GIR 3/23/2021 0 pCi/L 128986002 3/23/2021 Vogtle Charcoal Ct I-131 WAY 3/23/2021 0 pCi/m3 129000001 3/23/2021 Vogtle Milk Gamma Cs-137 Milky Way 3/23/2021 1.5632 pCi/L 128986001 3/23/2021 Vogtle Milk Gamma K-40 Milky Way 3/23/2021 1395.7 pCi/L 128986001 3/23/2021 Vogtle Milk Gamma Be-7 Milky Way 3/23/2021 0 pCi/L 128986001 3/23/2021 Vogtle Milk Gamma La-140 Milky Way 3/23/2021 0 pCi/L 128986001 3/23/2021 Vogtle Milk Gamma Ba-140 Milky Way 3/23/2021 0 pCi/L 128986001 3/23/2021 Vogtle Milk Gamma Cs-134 Milky Way 3/23/2021 0 pCi/L 128986001 3/23/2021 Vogtle Milk Gamma I-131 Milky Way 3/23/2021 0 pCi/L 128986001 3/23/2021 Vogtle Charcoal Ct I-131 HAN 3/23/2021 0 pCi/m3 129000007 3/23/2021 Vogtle Charcoal Ct I-131 RRD 3/23/2021 0 pCi/m3 129000006 3/23/2021 Vogtle Charcoal Ct I-131 SIM 3/23/2021 0 pCi/m3 129000003 3/23/2021 Vogtle Charcoal Ct I-131 MET 3/23/2021 0 pCi/m3 129000005 3/23/2021 Vogtle Charcoal Ct I-131 DIS 3/23/2021 0 pCi/m3 129000004 3/23/2021 Vogtle Charcoal Ct I-131 GIR 3/30/2021 0 pCi/m3 129045002 3/30/2021 Vogtle Air Qtr Comp I-131 GIR 3/30/2021 0 pCi/m3 129162002 3/30/2021 Vogtle Air Qtr Comp Cs-134 GIR 3/30/2021 0 pCi/m3 129162002 3/30/2021

Vogtle Air Qtr Comp Cs-137 GIR 3/30/2021 0 pCi/m3 129162002 3/30/2021 Vogtle Air Qtr Comp Be-7 GIR 3/30/2021 0.0873 pCi/m3 129162002 3/30/2021 Vogtle Air Qtr Comp I-131 WAY 3/30/2021 0 pCi/m3 129162001 3/30/2021 Vogtle Air Qtr Comp Cs-134 WAY 3/30/2021 0 pCi/m3 129162001 3/30/2021 Vogtle Air Qtr Comp Cs-137 WAY 3/30/2021 0 pCi/m3 129162001 3/30/2021 Vogtle Air Qtr Comp Be-7 WAY 3/30/2021 0.07382 pCi/m3 129162001 3/30/2021 Vogtle Charcoal Ct I-131 WAY 3/30/2021 0 pCi/m3 129045001 3/30/2021 Vogtle Vegetation I-131 WAY 3/30/2021 0 pCi/Kg 129046001 3/30/2021 Vogtle Vegetation Cs-134 WAY 3/30/2021 0 pCi/Kg 129046001 3/30/2021 Vogtle Vegetation Cs-137 WAY 3/30/2021 0 pCi/Kg 129046001 3/30/2021 Vogtle Vegetation Be-7 WAY 3/30/2021 378.23 pCi/Kg 129046001 3/30/2021 Vogtle Vegetation K-40 WAY 3/30/2021 4609.6 pCi/Kg 129046001 3/30/2021 Vogtle Vegetation Cs-134 HAN 3/30/2021 0 pCi/Kg 129046003 3/30/2021 Vogtle Vegetation Be-7 HAN 3/30/2021 599.51 pCi/Kg 129046003 3/30/2021 Vogtle Vegetation K-40 HAN 3/30/2021 5689.4 pCi/Kg 129046003 3/30/2021 Vogtle Vegetation I-131 HAN 3/30/2021 0 pCi/Kg 129046003 3/30/2021 Vogtle Vegetation Cs-137 HAN 3/30/2021 0 pCi/Kg 129046003 3/30/2021 Vogtle Air Qtr Comp I-131 HAN 3/30/2021 0 pCi/m3 129162007 3/30/2021 Vogtle Air Qtr Comp Cs-134 HAN 3/30/2021 0 pCi/m3 129162007 3/30/2021 Vogtle Air Qtr Comp Cs-137 HAN 3/30/2021 0 pCi/m3 129162007 3/30/2021 Vogtle Air Qtr Comp Be-7 HAN 3/30/2021 0.08291 pCi/m3 129162007 3/30/2021 Vogtle Charcoal Ct I-131 HAN 3/30/2021 0 pCi/m3 129045007 3/30/2021 Vogtle Air Qtr Comp Cs-134 RRD 3/30/2021 0 pCi/m3 129162006 3/30/2021 Vogtle Air Qtr Comp Cs-137 RRD 3/30/2021 0 pCi/m3 129162006 3/30/2021 Vogtle Air Qtr Comp Be-7 RRD 3/30/2021 0.09405 pCi/m3 129162006 3/30/2021 Vogtle Charcoal Ct I-131 RRD 3/30/2021 0 pCi/m3 129045006 3/30/2021 Vogtle Air Qtr Comp I-131 RRD 3/30/2021 0 pCi/m3 129162006 3/30/2021 Vogtle Air Qtr Comp I-131 SIM 3/30/2021 0 pCi/m3 129162003 3/30/2021 Vogtle Air Qtr Comp Cs-134 SIM 3/30/2021 0 pCi/m3 129162003 3/30/2021 Vogtle Air Qtr Comp Cs-137 SIM 3/30/2021 0 pCi/m3 129162003 3/30/2021 Vogtle Air Qtr Comp Be-7 SIM 3/30/2021 0.09267 pCi/m3 129162003 3/30/2021 Vogtle Charcoal Ct I-131 SIM 3/30/2021 0 pCi/m3 129045003 3/30/2021 Vogtle Vegetation I-131 SIM 3/30/2021 0 pCi/Kg 129046002 3/30/2021 Vogtle Vegetation Cs-134 SIM 3/30/2021 0 pCi/Kg 129046002 3/30/2021 Vogtle Vegetation Cs-137 SIM 3/30/2021 0 pCi/Kg 129046002 3/30/2021 Vogtle Vegetation Be-7 SIM 3/30/2021 368.47 pCi/Kg 129046002 3/30/2021 Vogtle Vegetation K-40 SIM 3/30/2021 5243.3 pCi/Kg 129046002 3/30/2021 Vogtle Air Qtr Comp I-131 MET 3/30/2021 0 pCi/m3 129162005 3/30/2021 Vogtle Air Qtr Comp Cs-137 MET 3/30/2021 0 pCi/m3 129162005 3/30/2021 Vogtle Air Qtr Comp Cs-134 MET 3/30/2021 0 pCi/m3 129162005 3/30/2021 Vogtle Air Qtr Comp Be-7 MET 3/30/2021 0.06166 pCi/m3 129162005 3/30/2021 Vogtle Charcoal Ct I-131 MET 3/30/2021 0 pCi/m3 129045005 3/30/2021 Vogtle Air Qtr Comp Cs-134 DIS 3/30/2021 0 pCi/m3 129162004 3/30/2021 Vogtle Air Qtr Comp Cs-137 DIS 3/30/2021 0 pCi/m3 129162004 3/30/2021 Vogtle Air Qtr Comp Be-7 DIS 3/30/2021 0.1155 pCi/m3 129162004 3/30/2021 Vogtle Charcoal Ct I-131 DIS 3/30/2021 0 pCi/m3 129045004 3/30/2021 Vogtle Air Qtr Comp I-131 DIS 3/30/2021 0 pCi/m3 129162004 3/30/2021 Vogtle Charcoal Ct I-131 DIS 4/5/2021 0 pCi/m3 129120004 4/5/2021 Vogtle Charcoal Ct I-131 MET 4/5/2021 0 pCi/m3 129120005 4/5/2021 Vogtle Charcoal Ct I-131 SIM 4/5/2021 0 pCi/m3 129120003 4/5/2021 Vogtle Charcoal Ct I-131 RRD 4/5/2021 0 pCi/m3 129120006 4/5/2021 Vogtle Charcoal Ct I-131 HAN 4/5/2021 0 pCi/m3 129120007 4/5/2021 Vogtle Charcoal Ct I-131 WAY 4/5/2021 0 pCi/m3 129120001 4/5/2021 Vogtle Charcoal Ct I-131 GIR 4/5/2021 0 pCi/m3 129120002 4/5/2021 Vogtle DW - Gamma Be-7 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma K-40 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma Fe-59 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma Co-58 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma Co-60 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma Zn-65 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma Zr-95 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma I-131 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma Cs-134 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma Cs-137 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma Ba-140 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma La-140 FAUC 4/6/2021 0 pCi/L 129106002 4/6/2021 Vogtle DW - Gamma I-131 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle DW - Gamma Cs-134 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle DW - Gamma Cs-137 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle DW - Gamma Ba-140 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle DW - Gamma La-140 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle Air Filters Gross Beta DIS 1/5/2021 0.01828 pCi/m3 127933004 1/5/2021 Vogtle DW - Gamma Be-7 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle Air Filters Gross Beta DIS 1/12/2021 0.03078 pCi/m3 128041004 1/12/2021 Vogtle DW - Gamma K-40 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle Air Filters Gross Beta DIS 1/19/2021 0.02481 pCi/m3 128181004 1/19/2021 Vogtle DW - Gamma Fe-59 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle Air Filters Gross Beta DIS 1/26/2021 0.02235 pCi/m3 128275004 1/26/2021 Vogtle Air Filters Gross Beta DIS 2/1/2021 0.02178 pCi/m3 128356004 2/1/2021 Vogtle DW - Gamma Co-58 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle Air Filters Gross Beta DIS 2/9/2021 0.01507 pCi/m3 128458004 2/9/2021 Vogtle DW - Gamma Co-60 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle DW - Gamma Zn-65 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021 Vogtle Air Filters Gross Beta DIS 2/15/2021 0.01064 pCi/m3 128534004 2/15/2021 Vogtle DW - Gamma Zr-95 RAUC 4/6/2021 0 pCi/L 129106001 4/6/2021

Vogtle Air Filters Gross Beta DIS 2/23/2021 0.02139 pCi/m3 128643004 2/23/2021 Vogtle Air Filters Gross Beta DIS 3/2/2021 0.02257 pCi/m3 128782004 3/2/2021 Vogtle Air Filters Gross Beta DIS 3/9/2021 0.02535 pCi/m3 128863004 3/9/2021 Vogtle DW - Gamma Cs-134 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle Air Filters Gross Beta DIS 3/23/2021 0.01796 pCi/m3 128999004 3/23/2021 Vogtle DW - Gamma Cs-137 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle DW - Gamma Ba-140 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle DW - Gamma La-140 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle DW - Gamma Be-7 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle DW - Gamma K-40 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle Air Filters Gross Beta DIS 3/30/2021 0.01597 pCi/m3 129044004 3/30/2021 Vogtle DW - Gamma Fe-59 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle Air Filters Gross Beta DIS 4/5/2021 0.02271 pCi/m3 129119004 4/5/2021 Vogtle Air Filters Gross Beta DIS 4/13/2021 0.02601 pCi/m3 129199004 4/13/2021 Vogtle DW - Gamma Co-58 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle DW - Gamma Co-60 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle Air Filters Gross Beta DIS 4/20/2021 0.02685 pCi/m3 129250004 4/20/2021 Vogtle Air Filters Gross Beta DIS 4/27/2021 0.02568 pCi/m3 129295004 4/27/2021 Vogtle DW - Gamma Zn-65 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle DW - Gamma Zr-95 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle Air Filters Gross Beta DIS 5/3/2021 0.02657 pCi/m3 129366004 5/3/2021 Vogtle Air Filters Gross Beta DIS 5/11/2021 0.02128 pCi/m3 129445004 5/11/2021 Vogtle DW - Gamma I-131 FPUR 4/6/2021 0 pCi/L 129106006 4/6/2021 Vogtle Air Filters Gross Beta DIS 5/18/2021 0.01962 pCi/m3 129520004 5/18/2021 Vogtle DW - Gamma K-40 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle Air Filters Gross Beta DIS 5/25/2021 0.02865 pCi/m3 129573004 5/25/2021 Vogtle Air Filters Gross Beta DIS 6/1/2021 0.0236 pCi/m3 129657004 6/1/2021 Vogtle DW - Gamma Fe-59 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle Air Filters Gross Beta DIS 6/8/2021 0.01433 pCi/m3 129797004 6/8/2021 Vogtle Air Filters Gross Beta DIS 6/15/2021 0.01544 pCi/m3 129928004 6/15/2021 Vogtle DW - Gamma Co-58 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle DW - Gamma Co-60 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle Air Filters Gross Beta DIS 6/22/2021 0.0232 pCi/m3 130036004 6/22/2021 Vogtle DW - Gamma Zn-65 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle Air Filters Gross Beta DIS 6/29/2021 0.01845 pCi/m3 130145004 6/29/2021 Vogtle DW - Gamma Zr-95 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle DW - Gamma I-131 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle DW - Gamma Cs-134 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle Air Filters Gross Beta DIS 7/6/2021 0.01467 pCi/m3 130206004 7/6/2021 Vogtle DW - Gamma Cs-137 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle Air Filters Gross Beta DIS 7/12/2021 0.01377 pCi/m3 130290004 7/12/2021 Vogtle DW - Gamma La-140 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle DW - Gamma Ba-140 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle Air Filters Gross Beta DIS 7/19/2021 0.01359 pCi/m3 130422004 7/19/2021 Vogtle Air Filters Gross Beta DIS 7/27/2021 0.02021 pCi/m3 130527004 7/27/2021 Vogtle DW - Gamma Be-7 RPUR 4/6/2021 0 pCi/L 129106005 4/6/2021 Vogtle Air Filters Gross Beta DIS 8/3/2021 0.02642 pCi/m3 130595004 8/3/2021 Vogtle DW - Gamma Co-58 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle DW - Gamma Co-60 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle Air Filters Gross Beta DIS 8/10/2021 0.01514 pCi/m3 130719004 8/10/2021 Vogtle DW - Gamma Zn-65 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle Air Filters Gross Beta DIS 8/17/2021 0.01485 pCi/m3 130835004 8/17/2021 Vogtle Air Filters Gross Beta DIS 8/24/2021 0.01178 pCi/m3 130902004 8/24/2021 Vogtle DW - Gamma Zr-95 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle Air Filters Gross Beta DIS 8/31/2021 0.025 pCi/m3 131012004 8/31/2021 Vogtle DW - Gamma I-131 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle Air Filters Gross Beta DIS 9/7/2021 0.02593 pCi/m3 131125004 9/7/2021 Vogtle Air Filters Gross Beta DIS 9/14/2021 0.02805 pCi/m3 131254004 9/14/2021 Vogtle DW - Gamma Cs-134 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle Air Filters Gross Beta DIS 9/21/2021 0.01584 pCi/m3 131332004 9/21/2021 Vogtle DW - Gamma Cs-137 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle Air Filters Gross Beta DIS 9/28/2021 0.02627 pCi/m3 131422004 9/28/2021 Vogtle DW - Gamma Ba-140 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle DW - Gamma La-140 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle DW - Gamma Be-7 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle DW - Gamma K-40 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle DW - Gamma Fe-59 FPOR 4/6/2021 0 pCi/L 129106004 4/6/2021 Vogtle Air Filters Gross Beta DIS 10/5/2021 0.04045 pCi/m3 131549004 10/5/2021 Vogtle Air Filters Gross Beta DIS 10/12/2021 0.01526 pCi/m3 131616004 10/12/2021 Vogtle DW - Gamma Cs-137 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 10/19/2021 0.0271 pCi/m3 131695004 10/19/2021 Vogtle DW - Gamma Ba-140 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 10/24/2021 0.04352 pCi/m3 131756004 10/24/2021 Vogtle DW - Gamma La-140 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 11/1/2021 0.01748 pCi/m3 131853004 11/1/2021 Vogtle DW - Gamma Be-7 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 11/9/2021 0.02398 pCi/m3 131941004 11/9/2021 Vogtle DW - Gamma K-40 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 11/16/2021 0.02533 pCi/m3 131993004 11/16/2021 Vogtle DW - Gamma Fe-59 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 11/22/2021 0.02094 pCi/m3 132036004 11/22/2021 Vogtle DW - Gamma Co-58 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 11/29/2021 0.02329 pCi/m3 132085004 11/29/2021 Vogtle DW - Gamma Zn-65 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 12/7/2021 0.04653 pCi/m3 132155004 12/7/2021

Vogtle DW - Gamma Co-60 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 12/13/2021 0.02452 pCi/m3 132220004 12/13/2021 Vogtle DW - Gamma Zr-95 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Air Filters Gross Beta DIS 12/21/2021 0.01896 pCi/m3 132273004 12/21/2021 Vogtle DW - Gamma I-131 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle DW - Gamma Cs-134 RPOR 4/6/2021 0 pCi/L 129106003 4/6/2021 Vogtle Charcoal Ct I-131 GIR 4/13/2021 0 pCi/m3 129200002 4/13/2021 Vogtle Milk Gamma Ba-140 GIR 4/13/2021 0 pCi/L 129183002 4/13/2021 Vogtle Air Filters Gross Beta DIS 12/28/2021 0.02691 pCi/m3 132323004 12/28/2021 Vogtle Milk Gamma La-140 GIR 4/13/2021 0 pCi/L 129183002 4/13/2021 Vogtle Milk Gamma Be-7 GIR 4/13/2021 0 pCi/L 129183002 4/13/2021 Vogtle Milk Gamma K-40 GIR 4/13/2021 1375.4 pCi/L 129183002 4/13/2021 Vogtle Milk Gamma Cs-134 GIR 4/13/2021 0 pCi/L 129183002 4/13/2021 Vogtle Milk Gamma I-131 GIR 4/13/2021 0 pCi/L 129183002 4/13/2021 Vogtle Milk Gamma Cs-137 GIR 4/13/2021 0 pCi/L 129183002 4/13/2021 Vogtle Charcoal Ct I-131 WAY 4/13/2021 0 pCi/m3 129200001 4/13/2021 Vogtle Milk Gamma Be-7 Milky Way 4/13/2021 0 pCi/L 129183001 4/13/2021 Vogtle Milk Gamma La-140 Milky Way 4/13/2021 0 pCi/L 129183001 4/13/2021 Vogtle Milk Gamma Ba-140 Milky Way 4/13/2021 0 pCi/L 129183001 4/13/2021 Vogtle Milk Gamma Cs-134 Milky Way 4/13/2021 0 pCi/L 129183001 4/13/2021 Vogtle Milk Gamma I-131 Milky Way 4/13/2021 0 pCi/L 129183001 4/13/2021 Vogtle Milk Gamma K-40 Milky Way 4/13/2021 1405 pCi/L 129183001 4/13/2021 Vogtle DW - Beta Gross Alpha FAUC 1/5/2021 0 pCi/L 127928002 1/5/2021 Vogtle DW - Beta Gross Beta FAUC 1/5/2021 2.681 pCi/L 127928002 1/5/2021 Vogtle Water H-3 Tritium FAUC 1/5/2021 133 pCi/L 128365002 1/5/2021 Vogtle Milk Gamma Cs-137 Milky Way 4/13/2021 0 pCi/L 129183001 4/13/2021 Vogtle DW - Beta Gross Beta FAUC 2/2/2021 2.129 pCi/L 128358002 2/2/2021 Vogtle Charcoal Ct I-131 HAN 4/13/2021 0 pCi/m3 129200007 4/13/2021 Vogtle Charcoal Ct I-131 RRD 4/13/2021 0 pCi/m3 129200006 4/13/2021 Vogtle Charcoal Ct I-131 SIM 4/13/2021 0 pCi/m3 129200003 4/13/2021 Vogtle Charcoal Ct I-131 MET 4/13/2021 0 pCi/m3 129200005 4/13/2021 Vogtle Charcoal Ct I-131 DIS 4/13/2021 0 pCi/m3 129200004 4/13/2021 Vogtle River Water Cs-137 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water Ba-140 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water La-140 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water Be-7 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water K-40 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water Fe-59 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water Co-58 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water Co-60 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle DW - Beta Gross Alpha FAUC 2/2/2021 0 pCi/L 128358002 2/2/2021 Vogtle River Water Zn-65 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water Zr-95 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water I-131 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water Cs-134 1495 4/13/2021 0 pCi/L 129185003 4/13/2021 Vogtle River Water I-131 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water La-140 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water Cs-134 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water Cs-137 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water Ba-140 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water Be-7 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water K-40 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water Fe-59 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle DW - Beta Gross Alpha FAUC 3/2/2021 0 pCi/L 128780002 3/2/2021 Vogtle DW - Beta Gross Beta FAUC 3/2/2021 2.221 pCi/L 128780002 3/2/2021 Vogtle DW - Beta Gross Alpha FAUC 4/6/2021 0 pCi/L 129105002 4/6/2021 Vogtle DW - Beta Gross Beta FAUC 4/6/2021 1.668 pCi/L 129105002 4/6/2021 Vogtle River Water Co-58 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water Co-60 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle Water H-3 Tritium FAUC 4/6/2021 170 pCi/L 129220002 4/6/2021 Vogtle River Water Zn-65 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water Zr-95 1504 4/13/2021 0 pCi/L 129185002 4/13/2021 Vogtle River Water Fe-59 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water Co-58 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water Co-60 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water Zn-65 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water Zr-95 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water Be-7 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water K-40 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water I-131 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water Cs-134 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water Cs-137 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle DW - Beta Gross Alpha FAUC 5/4/2021 0 pCi/L 129363002 5/4/2021 Vogtle DW - Beta Gross Beta FAUC 5/4/2021 0.9738 pCi/L 129363002 5/4/2021 Vogtle River Water Ba-140 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle River Water La-140 1512 4/13/2021 0 pCi/L 129185001 4/13/2021 Vogtle Sediment Cs-134 1533 4/13/2021 0 pCi/Kg 129184002 4/13/2021 Vogtle Sediment Cs-137 1533 4/13/2021 0 pCi/Kg 129184002 4/13/2021 Vogtle Sediment Be-7 1533 4/13/2021 0 pCi/Kg 129184002 4/13/2021 Vogtle Sediment K-40 1533 4/13/2021 14130 pCi/Kg 129184002 4/13/2021 Vogtle Sediment Co-60 1533 4/13/2021 0 pCi/Kg 129184002 4/13/2021 Vogtle Sediment Co-58 1533 4/13/2021 0 pCi/Kg 129184002 4/13/2021 Vogtle Sediment Co-58 1502 4/13/2021 0 pCi/Kg 129184001 4/13/2021 Vogtle Sediment K-40 1502 4/13/2021 13218 pCi/Kg 129184001 4/13/2021 Vogtle Sediment Be-7 1502 4/13/2021 2411.8 pCi/Kg 129184001 4/13/2021

Vogtle Sediment Cs-137 1502 4/13/2021 82.224 pCi/Kg 129184001 4/13/2021 Vogtle Sediment Cs-134 1502 4/13/2021 0 pCi/Kg 129184001 4/13/2021 Vogtle Sediment Co-60 1502 4/13/2021 0 pCi/Kg 129184001 4/13/2021 Vogtle Charcoal Ct I-131 GIR 4/20/2021 0 pCi/m3 129251002 4/20/2021 Vogtle Charcoal Ct I-131 WAY 4/20/2021 0 pCi/m3 129251001 4/20/2021 Vogtle Charcoal Ct I-131 HAN 4/20/2021 0 pCi/m3 129251007 4/20/2021 Vogtle Charcoal Ct I-131 RRD 4/20/2021 0 pCi/m3 129251006 4/20/2021 Vogtle Charcoal Ct I-131 SIM 4/20/2021 0 pCi/m3 129251003 4/20/2021 Vogtle Charcoal Ct I-131 MET 4/20/2021 0 pCi/m3 129251005 4/20/2021 Vogtle Charcoal Ct I-131 DIS 4/20/2021 0 pCi/m3 129251004 4/20/2021 Vogtle Milk Gamma I-131 GIR 4/27/2021 0 pCi/L 129294002 4/27/2021 Vogtle DW - Beta Gross Beta FAUC 6/1/2021 3.958 pCi/L 129655002 6/1/2021 Vogtle DW - Beta Gross Alpha FAUC 6/1/2021 0 pCi/L 129655002 6/1/2021 Vogtle Milk Gamma Cs-134 GIR 4/27/2021 0 pCi/L 129294002 4/27/2021 Vogtle Milk Gamma Ba-140 GIR 4/27/2021 0 pCi/L 129294002 4/27/2021 Vogtle Milk Gamma La-140 GIR 4/27/2021 0 pCi/L 129294002 4/27/2021 Vogtle Milk Gamma Be-7 GIR 4/27/2021 0 pCi/L 129294002 4/27/2021 Vogtle Milk Gamma K-40 GIR 4/27/2021 1384.8 pCi/L 129294002 4/27/2021 Vogtle Milk Gamma Cs-137 GIR 4/27/2021 0 pCi/L 129294002 4/27/2021 Vogtle Charcoal Ct I-131 GIR 4/27/2021 0 pCi/m3 129296002 4/27/2021 Vogtle Vegetation Cs-134 WAY 4/27/2021 0 pCi/Kg 129299001 4/27/2021 Vogtle Vegetation Cs-137 WAY 4/27/2021 0 pCi/Kg 129299001 4/27/2021 Vogtle Vegetation Be-7 WAY 4/27/2021 263.94 pCi/Kg 129299001 4/27/2021 Vogtle Vegetation K-40 WAY 4/27/2021 4277.9 pCi/Kg 129299001 4/27/2021 Vogtle Vegetation I-131 WAY 4/27/2021 0 pCi/Kg 129299001 4/27/2021 Vogtle Charcoal Ct I-131 WAY 4/27/2021 0 pCi/m3 129296001 4/27/2021 Vogtle Milk Gamma K-40 Milky Way 4/27/2021 1374.8 pCi/L 129294001 4/27/2021 Vogtle Milk Gamma Be-7 Milky Way 4/27/2021 0 pCi/L 129294001 4/27/2021 Vogtle Milk Gamma La-140 Milky Way 4/27/2021 0 pCi/L 129294001 4/27/2021 Vogtle Milk Gamma Ba-140 Milky Way 4/27/2021 0 pCi/L 129294001 4/27/2021 Vogtle Water H-3 Tritium FAUC 7/6/2021 0 pCi/L 130438002 7/6/2021 Vogtle DW - Beta Gross Alpha FAUC 7/6/2021 0 pCi/L 130196002 7/6/2021 Vogtle DW - Beta Gross Beta FAUC 7/6/2021 2.972 pCi/L 130196002 7/6/2021 Vogtle Milk Gamma I-131 Milky Way 4/27/2021 0 pCi/L 129294001 4/27/2021 Vogtle DW - Beta Gross Beta FAUC 8/3/2021 4.203 pCi/L 130593002 8/3/2021 Vogtle DW - Beta Gross Alpha FAUC 8/3/2021 0 pCi/L 130593002 8/3/2021 Vogtle Milk Gamma Cs-134 Milky Way 4/27/2021 0 pCi/L 129294001 4/27/2021 Vogtle Milk Gamma Cs-137 Milky Way 4/27/2021 0 pCi/L 129294001 4/27/2021 Vogtle Charcoal Ct I-131 HAN 4/27/2021 0 pCi/m3 129296007 4/27/2021 Vogtle Vegetation K-40 HAN 4/27/2021 4514 pCi/Kg 129299003 4/27/2021 Vogtle Vegetation I-131 HAN 4/27/2021 0 pCi/Kg 129299003 4/27/2021 Vogtle Vegetation Be-7 HAN 4/27/2021 727.5 pCi/Kg 129299003 4/27/2021 Vogtle Vegetation Cs-134 HAN 4/27/2021 0 pCi/Kg 129299003 4/27/2021 Vogtle Vegetation Cs-137 HAN 4/27/2021 0 pCi/Kg 129299003 4/27/2021 Vogtle Fish K-40 1535 Bass 4/27/2021 3742 pCi/Kg 129297001 4/27/2021 Vogtle Fish K-40 1535 Sucker 4/27/2021 3248 pCi/Kg 129297002 4/27/2021 Vogtle Fish Cs-137 1535 Bass 4/27/2021 136.31 pCi/Kg 129297001 4/27/2021 Vogtle Fish Be-7 1535 Bass 4/27/2021 0 pCi/Kg 129297001 4/27/2021 Vogtle Fish Be-7 1535 Sucker 4/27/2021 0 pCi/Kg 129297002 4/27/2021 Vogtle Fish Co-58 1535 Bass 4/27/2021 0 pCi/Kg 129297001 4/27/2021 Vogtle DW - Beta Gross Beta FAUC 9/7/2021 3.481 pCi/L 131123002 9/7/2021 Vogtle Fish Co-58 1535 Sucker 4/27/2021 0 pCi/Kg 129297002 4/27/2021 Vogtle Fish Zn-65 1535 Bass 4/27/2021 0 pCi/Kg 129297001 4/27/2021 Vogtle Fish Cs-134 1535 Bass 4/27/2021 0 pCi/Kg 129297001 4/27/2021 Vogtle Fish Co-60 1535 Bass 4/27/2021 0 pCi/Kg 129297001 4/27/2021 Vogtle Fish Fe-59 1535 Bass 4/27/2021 0 pCi/Kg 129297001 4/27/2021 Vogtle Fish Co-60 1535 Sucker 4/27/2021 0 pCi/Kg 129297002 4/27/2021 Vogtle Fish Cs-134 1535 Sucker 4/27/2021 0 pCi/Kg 129297002 4/27/2021 Vogtle Fish Zn-65 1535 Sucker 4/27/2021 0 pCi/Kg 129297002 4/27/2021 Vogtle Fish Fe-59 1535 Sucker 4/27/2021 0 pCi/Kg 129297002 4/27/2021 Vogtle Fish Cs-137 1535 Sucker 4/27/2021 0 pCi/Kg 129297002 4/27/2021 Vogtle Charcoal Ct I-131 RRD 4/27/2021 0 pCi/m3 129296006 4/27/2021 Vogtle DW - Beta Gross Alpha FAUC 9/7/2021 0 pCi/L 131123002 9/7/2021 Vogtle Charcoal Ct I-131 SIM 4/27/2021 0 pCi/m3 129296003 4/27/2021 Vogtle Vegetation K-40 SIM 4/27/2021 4492.8 pCi/Kg 129299002 4/27/2021 Vogtle Vegetation I-131 SIM 4/27/2021 0 pCi/Kg 129299002 4/27/2021 Vogtle Vegetation Be-7 SIM 4/27/2021 1168.8 pCi/Kg 129299002 4/27/2021 Vogtle Vegetation Cs-137 SIM 4/27/2021 0 pCi/Kg 129299002 4/27/2021 Vogtle Vegetation Cs-134 SIM 4/27/2021 0 pCi/Kg 129299002 4/27/2021 Vogtle Charcoal Ct I-131 MET 4/27/2021 0 pCi/m3 129296005 4/27/2021 Vogtle Charcoal Ct I-131 DIS 4/27/2021 0 pCi/m3 129296004 4/27/2021 Vogtle Fish K-40 1492-1478 Sucker 4/27/2021 4188.9 pCi/Kg 129297004 4/27/2021 Vogtle Fish K-40 1492-1478 Mullet 4/27/2021 3812.2 pCi/Kg 129297006 4/27/2021 Vogtle Fish K-40 1492-1478 Bass 4/27/2021 3747.3 pCi/Kg 129297005 4/27/2021 Vogtle Fish K-40 1492-1478 Carp 4/27/2021 3419.1 pCi/Kg 129297003 4/27/2021 Vogtle DW - Beta Gross Alpha FAUC 10/5/2021 0 pCi/L 131519002 10/5/2021 Vogtle DW - Beta Gross Beta FAUC 10/5/2021 2.917 pCi/L 131519002 10/5/2021 Vogtle Fish Cs-137 1492-1478 Bass 4/27/2021 82.509 pCi/Kg 129297005 4/27/2021 Vogtle Fish Be-7 1492-1478 Bass 4/27/2021 0 pCi/Kg 129297005 4/27/2021 Vogtle Water H-3 Tritium FAUC 10/5/2021 163 pCi/L 131707002 10/5/2021 Vogtle DW - Beta Gross Alpha FAUC 11/2/2021 0 pCi/L 131850002 11/2/2021 Vogtle DW - Beta Gross Beta FAUC 11/2/2021 0.9658 pCi/L 131850002 11/2/2021 Vogtle Fish Be-7 1492-1478 Carp 4/27/2021 0 pCi/Kg 129297003 4/27/2021 Vogtle Fish Be-7 1492-1478 Mullet 4/27/2021 0 pCi/Kg 129297006 4/27/2021 Vogtle Fish Be-7 1492-1478 Sucker 4/27/2021 0 pCi/Kg 129297004 4/27/2021

Vogtle Fish Fe-59 1492-1478 Bass 4/27/2021 0 pCi/Kg 129297005 4/27/2021 Vogtle Fish Zn-65 1492-1478 Bass 4/27/2021 0 pCi/Kg 129297005 4/27/2021 Vogtle Fish Cs-134 1492-1478 Bass 4/27/2021 0 pCi/Kg 129297005 4/27/2021 Vogtle Fish Co-58 1492-1478 Bass 4/27/2021 0 pCi/Kg 129297005 4/27/2021 Vogtle Fish Fe-59 1492-1478 Carp 4/27/2021 0 pCi/Kg 129297003 4/27/2021 Vogtle Fish Co-58 1492-1478 Carp 4/27/2021 0 pCi/Kg 129297003 4/27/2021 Vogtle Fish Co-58 1492-1478 Mullet 4/27/2021 0 pCi/Kg 129297006 4/27/2021 Vogtle Fish Zn-65 1492-1478 Carp 4/27/2021 0 pCi/Kg 129297003 4/27/2021 Vogtle Fish Cs-134 1492-1478 Carp 4/27/2021 0 pCi/Kg 129297003 4/27/2021 Vogtle Fish Co-58 1492-1478 Sucker 4/27/2021 0 pCi/Kg 129297004 4/27/2021 Vogtle Fish Fe-59 1492-1478 Mullet 4/27/2021 0 pCi/Kg 129297006 4/27/2021 Vogtle Fish Zn-65 1492-1478 Mullet 4/27/2021 0 pCi/Kg 129297006 4/27/2021 Vogtle Fish Cs-134 1492-1478 Mullet 4/27/2021 0 pCi/Kg 129297006 4/27/2021 Vogtle Fish Fe-59 1492-1478 Sucker 4/27/2021 0 pCi/Kg 129297004 4/27/2021 Vogtle Fish Zn-65 1492-1478 Sucker 4/27/2021 0 pCi/Kg 129297004 4/27/2021 Vogtle Fish Cs-134 1492-1478 Sucker 4/27/2021 0 pCi/Kg 129297004 4/27/2021 Vogtle Fish Co-60 1492-1478 Bass 4/27/2021 0 pCi/Kg 129297005 4/27/2021 Vogtle Fish Co-60 1492-1478 Carp 4/27/2021 0 pCi/Kg 129297003 4/27/2021 Vogtle Fish Co-60 1492-1478 Mullet 4/27/2021 0 pCi/Kg 129297006 4/27/2021 Vogtle Fish Co-60 1492-1478 Sucker 4/27/2021 0 pCi/Kg 129297004 4/27/2021 Vogtle DW - Beta Gross Alpha FAUC 12/8/2021 0 pCi/L 132149002 12/8/2021 Vogtle DW - Beta Gross Beta FAUC 12/8/2021 3.368 pCi/L 132149002 12/8/2021 Vogtle Fish Cs-137 1492-1478 Carp 4/27/2021 0 pCi/Kg 129297003 4/27/2021 Vogtle Water H-3 Tritium FPOR 1/5/2021 155 pCi/L 128365004 1/5/2021 Vogtle DW - Beta Gross Alpha FPOR 1/5/2021 0 pCi/L 127928004 1/5/2021 Vogtle DW - Beta Gross Beta FPOR 1/5/2021 2.014 pCi/L 127928004 1/5/2021 Vogtle Fish Cs-137 1492-1478 Mullet 4/27/2021 0 pCi/Kg 129297006 4/27/2021 Vogtle Fish Cs-137 1492-1478 Sucker 4/27/2021 0 pCi/Kg 129297004 4/27/2021 Vogtle Charcoal Ct I-131 DIS 5/3/2021 0 pCi/m3 129367004 5/3/2021 Vogtle Charcoal Ct I-131 MET 5/3/2021 0 pCi/m3 129367005 5/3/2021 Vogtle Charcoal Ct I-131 SIM 5/3/2021 0 pCi/m3 129367003 5/3/2021 Vogtle Charcoal Ct I-131 RRD 5/3/2021 0 pCi/m3 129367006 5/3/2021 Vogtle Charcoal Ct I-131 HAN 5/3/2021 0 pCi/m3 129367007 5/3/2021 Vogtle Charcoal Ct I-131 WAY 5/3/2021 0 pCi/m3 129367001 5/3/2021 Vogtle DW - Gamma Fe-59 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma Co-58 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma Zn-65 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma Co-60 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma Zr-95 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Beta Gross Beta FPOR 2/2/2021 1.205 pCi/L 128358004 2/2/2021 Vogtle DW - Gamma I-131 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma Cs-134 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma Cs-137 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma Ba-140 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma La-140 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma Be-7 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma K-40 RAUC 5/4/2021 0 pCi/L 129364001 5/4/2021 Vogtle DW - Gamma Fe-59 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma Co-58 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma Co-60 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma Zn-65 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma Zr-95 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Beta Gross Alpha FPOR 2/2/2021 0 pCi/L 128358004 2/2/2021 Vogtle DW - Gamma I-131 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma Cs-134 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma Cs-137 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma Ba-140 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma La-140 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma Be-7 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma K-40 FAUC 5/4/2021 0 pCi/L 129364002 5/4/2021 Vogtle DW - Gamma Zn-65 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma Zr-95 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma I-131 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma Cs-134 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma Cs-137 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Beta Gross Alpha FPOR 3/1/2021 0 pCi/L 128780004 3/1/2021 Vogtle DW - Beta Gross Beta FPOR 3/1/2021 4.401 pCi/L 128780004 3/1/2021 Vogtle DW - Beta Gross Beta FPOR 4/6/2021 2.266 pCi/L 129105004 4/6/2021 Vogtle DW - Gamma Ba-140 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle Water H-3 Tritium FPOR 4/6/2021 192 pCi/L 129220004 4/6/2021 Vogtle DW - Gamma La-140 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma Be-7 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma K-40 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma Fe-59 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma Co-58 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma Co-60 FPUR 5/4/2021 0 pCi/L 129364006 5/4/2021 Vogtle DW - Gamma Fe-59 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma Co-58 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma Co-60 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma Zn-65 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma Zr-95 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Beta Gross Alpha FPOR 4/6/2021 0 pCi/L 129105004 4/6/2021 Vogtle DW - Gamma I-131 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma Cs-134 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma Cs-137 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021

Vogtle DW - Gamma Ba-140 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma La-140 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma Be-7 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma K-40 RPUR 5/4/2021 0 pCi/L 129364005 5/4/2021 Vogtle DW - Gamma Fe-59 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma Co-58 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma Co-60 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma Zn-65 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma Zr-95 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Beta Gross Beta FPOR 5/4/2021 0.8425 pCi/L 129363004 5/4/2021 Vogtle DW - Beta Gross Alpha FPOR 5/4/2021 0 pCi/L 129363004 5/4/2021 Vogtle DW - Gamma I-131 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma Cs-134 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma Cs-137 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma Ba-140 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma La-140 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma Be-7 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma K-40 FPOR 5/4/2021 0 pCi/L 129364004 5/4/2021 Vogtle DW - Gamma Co-58 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Beta Gross Alpha FPOR 6/1/2021 0 pCi/L 129655004 6/1/2021 Vogtle DW - Beta Gross Beta FPOR 6/1/2021 3.102 pCi/L 129655004 6/1/2021 Vogtle DW - Gamma Co-60 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma Zn-65 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma Zr-95 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma I-131 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma Cs-134 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma Cs-137 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma Ba-140 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma La-140 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma Be-7 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma K-40 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle DW - Gamma Fe-59 RPOR 5/4/2021 0 pCi/L 129364003 5/4/2021 Vogtle Charcoal Ct I-131 GIR 5/4/2021 0 pCi/m3 129367002 5/4/2021 Vogtle Milk Gamma K-40 GIR 5/11/2021 1329.7 pCi/L 129444002 5/11/2021 Vogtle Milk Gamma Be-7 GIR 5/11/2021 0 pCi/L 129444002 5/11/2021 Vogtle Milk Gamma La-140 GIR 5/11/2021 0 pCi/L 129444002 5/11/2021 Vogtle Milk Gamma Ba-140 GIR 5/11/2021 0 pCi/L 129444002 5/11/2021 Vogtle Milk Gamma I-131 GIR 5/11/2021 0 pCi/L 129444002 5/11/2021 Vogtle Water H-3 Tritium FPOR 7/5/2021 145 pCi/L 130438004 7/5/2021 Vogtle DW - Beta Gross Alpha FPOR 7/5/2021 0 pCi/L 130196004 7/5/2021 Vogtle DW - Beta Gross Beta FPOR 7/5/2021 3.751 pCi/L 130196004 7/5/2021 Vogtle Milk Gamma Cs-134 GIR 5/11/2021 0 pCi/L 129444002 5/11/2021 Vogtle Milk Gamma Cs-137 GIR 5/11/2021 0 pCi/L 129444002 5/11/2021 Vogtle Milk Gamma Cs-134 Milky Way 5/11/2021 0 pCi/L 129444001 5/11/2021 Vogtle Milk Gamma I-131 Milky Way 5/11/2021 0 pCi/L 129444001 5/11/2021 Vogtle Milk Gamma K-40 Milky Way 5/11/2021 1408.4 pCi/L 129444001 5/11/2021 Vogtle Milk Gamma Be-7 Milky Way 5/11/2021 0 pCi/L 129444001 5/11/2021 Vogtle Milk Gamma La-140 Milky Way 5/11/2021 0 pCi/L 129444001 5/11/2021 Vogtle Milk Gamma Ba-140 Milky Way 5/11/2021 0 pCi/L 129444001 5/11/2021 Vogtle Milk Gamma Cs-137 Milky Way 5/11/2021 0 pCi/L 129444001 5/11/2021 Vogtle Charcoal Ct I-131 GIR 5/11/2021 0 pCi/m3 129446002 5/11/2021 Vogtle Charcoal Ct I-131 WAY 5/11/2021 0 pCi/m3 129446001 5/11/2021 Vogtle Charcoal Ct I-131 HAN 5/11/2021 0 pCi/m3 129446007 5/11/2021 Vogtle Charcoal Ct I-131 RRD 5/11/2021 0 pCi/m3 129446006 5/11/2021 Vogtle Charcoal Ct I-131 SIM 5/11/2021 0 pCi/m3 129446003 5/11/2021 Vogtle DW - Beta Gross Alpha FPOR 8/3/2021 0 pCi/L 130593004 8/3/2021 Vogtle DW - Beta Gross Beta FPOR 8/3/2021 6.312 pCi/L 130593004 8/3/2021 Vogtle DW - Beta Gross Beta FPOR 9/7/2021 2.782 pCi/L 131123004 9/7/2021 Vogtle Charcoal Ct I-131 MET 5/11/2021 0 pCi/m3 129446005 5/11/2021 Vogtle Charcoal Ct I-131 DIS 5/11/2021 0 pCi/m3 129446004 5/11/2021 Vogtle Charcoal Ct I-131 GIR 5/18/2021 0 pCi/m3 129521002 5/18/2021 Vogtle Charcoal Ct I-131 WAY 5/18/2021 0 pCi/m3 129521001 5/18/2021 Vogtle Charcoal Ct I-131 HAN 5/18/2021 0 pCi/m3 129521007 5/18/2021 Vogtle Charcoal Ct I-131 RRD 5/18/2021 0 pCi/m3 129521006 5/18/2021 Vogtle Charcoal Ct I-131 SIM 5/18/2021 0 pCi/m3 129521003 5/18/2021 Vogtle Charcoal Ct I-131 MET 5/18/2021 0 pCi/m3 129521005 5/18/2021 Vogtle Charcoal Ct I-131 DIS 5/18/2021 0 pCi/m3 129521004 5/18/2021 Vogtle River Water Co-58 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water Co-60 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water Zn-65 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water Zr-95 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle DW - Beta Gross Alpha FPOR 9/7/2021 0 pCi/L 131123004 9/7/2021 Vogtle Water H-3 Tritium FPOR 10/5/2021 486 pCi/L 131707004 10/5/2021 Vogtle River Water I-131 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water Cs-134 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water Cs-137 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water Ba-140 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water La-140 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water Be-7 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water K-40 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water Fe-59 1495 5/18/2021 0 pCi/L 129522003 5/18/2021 Vogtle River Water Cs-134 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water Cs-137 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water Ba-140 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle DW - Beta Gross Alpha FPOR 10/5/2021 0 pCi/L 131519004 10/5/2021

Vogtle DW - Beta Gross Beta FPOR 10/5/2021 4.427 pCi/L 131519004 10/5/2021 Vogtle River Water La-140 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water Be-7 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle DW - Beta Gross Beta FPOR 11/2/2021 1.904 pCi/L 131850004 11/2/2021 Vogtle River Water K-40 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water Co-58 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water Fe-59 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water Co-60 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water Zn-65 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water Zr-95 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water I-131 1504 5/18/2021 0 pCi/L 129522002 5/18/2021 Vogtle River Water Be-7 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water K-40 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water Fe-59 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water Co-60 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle DW - Beta Gross Alpha FPOR 11/2/2021 0 pCi/L 131850004 11/2/2021 Vogtle River Water Co-58 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water Zn-65 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water Zr-95 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water I-131 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water Cs-134 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water Cs-137 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water Ba-140 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle River Water La-140 1512 5/18/2021 0 pCi/L 129522001 5/18/2021 Vogtle Milk Gamma Cs-134 GIR 5/25/2021 0 pCi/L 129570002 5/25/2021 Vogtle DW - Beta Gross Alpha FPOR 12/8/2021 0 pCi/L 132149004 12/8/2021 Vogtle DW - Beta Gross Beta FPOR 12/8/2021 3.467 pCi/L 132149004 12/8/2021 Vogtle Milk Gamma Ba-140 GIR 5/25/2021 0 pCi/L 129570002 5/25/2021 Vogtle Milk Gamma La-140 GIR 5/25/2021 0 pCi/L 129570002 5/25/2021 Vogtle Milk Gamma Be-7 GIR 5/25/2021 0 pCi/L 129570002 5/25/2021 Vogtle Milk Gamma K-40 GIR 5/25/2021 1355.3 pCi/L 129570002 5/25/2021 Vogtle Milk Gamma I-131 GIR 5/25/2021 0 pCi/L 129570002 5/25/2021 Vogtle Milk Gamma Cs-137 GIR 5/25/2021 0 pCi/L 129570002 5/25/2021 Vogtle Charcoal Ct I-131 GIR 5/25/2021 0 pCi/m3 129574002 5/25/2021 Vogtle Charcoal Ct I-131 WAY 5/25/2021 0 pCi/m3 129574001 5/25/2021 Vogtle Vegetation Cs-134 WAY 5/25/2021 0 pCi/Kg 129571001 5/25/2021 Vogtle Vegetation Cs-137 WAY 5/25/2021 0 pCi/Kg 129571001 5/25/2021 Vogtle Vegetation I-131 WAY 5/25/2021 0 pCi/Kg 129571001 5/25/2021 Vogtle Vegetation K-40 WAY 5/25/2021 5564 pCi/Kg 129571001 5/25/2021 Vogtle Vegetation Be-7 WAY 5/25/2021 0 pCi/Kg 129571001 5/25/2021 Vogtle Milk Gamma I-131 Milky Way 5/25/2021 0 pCi/L 129570001 5/25/2021 Vogtle Milk Gamma K-40 Milky Way 5/25/2021 1380.4 pCi/L 129570001 5/25/2021 Vogtle Milk Gamma Be-7 Milky Way 5/25/2021 0 pCi/L 129570001 5/25/2021 Vogtle Milk Gamma La-140 Milky Way 5/25/2021 0 pCi/L 129570001 5/25/2021 Vogtle Milk Gamma Ba-140 Milky Way 5/25/2021 0 pCi/L 129570001 5/25/2021 Vogtle DW - Beta Gross Alpha FPUR 1/5/2021 0 pCi/L 127928006 1/5/2021 Vogtle DW - Beta Gross Beta FPUR 1/5/2021 5.843 pCi/L 127928006 1/5/2021 Vogtle Water H-3 Tritium FPUR 1/5/2021 179 pCi/L 128365006 1/5/2021 Vogtle DW - Beta Gross Beta FPUR 2/2/2021 1.83 pCi/L 128358006 2/2/2021 Vogtle Milk Gamma Cs-134 Milky Way 5/25/2021 0 pCi/L 129570001 5/25/2021 Vogtle Milk Gamma Cs-137 Milky Way 5/25/2021 0 pCi/L 129570001 5/25/2021 Vogtle Vegetation Be-7 HAN 5/25/2021 863.13 pCi/Kg 129571003 5/25/2021 Vogtle Vegetation K-40 HAN 5/25/2021 5445 pCi/Kg 129571003 5/25/2021 Vogtle Vegetation Cs-134 HAN 5/25/2021 0 pCi/Kg 129571003 5/25/2021 Vogtle Vegetation I-131 HAN 5/25/2021 0 pCi/Kg 129571003 5/25/2021 Vogtle Vegetation Cs-137 HAN 5/25/2021 0 pCi/Kg 129571003 5/25/2021 Vogtle Charcoal Ct I-131 HAN 5/25/2021 0 pCi/m3 129574007 5/25/2021 Vogtle Charcoal Ct I-131 RRD 5/25/2021 0 pCi/m3 129574006 5/25/2021 Vogtle Charcoal Ct I-131 SIM 5/25/2021 0 pCi/m3 129574003 5/25/2021 Vogtle Vegetation I-131 SIM 5/25/2021 0 pCi/Kg 129571002 5/25/2021 Vogtle Vegetation Cs-137 SIM 5/25/2021 0 pCi/Kg 129571002 5/25/2021 Vogtle Vegetation Cs-134 SIM 5/25/2021 0 pCi/Kg 129571002 5/25/2021 Vogtle Vegetation K-40 SIM 5/25/2021 4238.1 pCi/Kg 129571002 5/25/2021 Vogtle DW - Beta Gross Alpha FPUR 2/2/2021 0 pCi/L 128358006 2/2/2021 Vogtle Vegetation Be-7 SIM 5/25/2021 148.25 pCi/Kg 129571002 5/25/2021 Vogtle Charcoal Ct I-131 MET 5/25/2021 0 pCi/m3 129574005 5/25/2021 Vogtle Charcoal Ct I-131 DIS 5/25/2021 0 pCi/m3 129574004 5/25/2021 Vogtle DW - Gamma Zn-65 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma Zr-95 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma I-131 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma Cs-134 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma Cs-137 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma Ba-140 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma La-140 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma Be-7 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma K-40 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Beta Gross Alpha FPUR 3/1/2021 0 pCi/L 128780006 3/1/2021 Vogtle DW - Beta Gross Beta FPUR 3/1/2021 4.755 pCi/L 128780006 3/1/2021 Vogtle DW - Beta Gross Beta FPUR 4/6/2021 1.772 pCi/L 129105006 4/6/2021 Vogtle DW - Beta Gross Alpha FPUR 4/6/2021 0 pCi/L 129105006 4/6/2021 Vogtle DW - Gamma Fe-59 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma Co-58 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma Co-60 RAUC 6/1/2021 0 pCi/L 129656001 6/1/2021 Vogtle DW - Gamma Zr-95 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma I-131 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021

Vogtle DW - Gamma Cs-134 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma Cs-137 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma Ba-140 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma La-140 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma Be-7 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma K-40 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma Fe-59 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle Water H-3 Tritium FPUR 4/6/2021 188 pCi/L 129220006 4/6/2021 Vogtle DW - Gamma Co-58 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma Co-60 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma Zn-65 FAUC 6/1/2021 0 pCi/L 129656002 6/1/2021 Vogtle DW - Gamma I-131 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma Cs-134 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma Cs-137 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma Ba-140 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma La-140 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma Be-7 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma K-40 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma Fe-59 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma Co-58 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Beta Gross Beta FPUR 5/4/2021 1.68 pCi/L 129363006 5/4/2021 Vogtle DW - Beta Gross Alpha FPUR 5/4/2021 0 pCi/L 129363006 5/4/2021 Vogtle DW - Gamma Co-60 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma Zn-65 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma Zr-95 FPUR 6/1/2021 0 pCi/L 129656006 6/1/2021 Vogtle DW - Gamma I-131 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Cs-134 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Cs-137 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Ba-140 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma La-140 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Be-7 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Beta Gross Alpha FPUR 6/1/2021 0 pCi/L 129655006 6/1/2021 Vogtle DW - Beta Gross Beta FPUR 6/1/2021 2.351 pCi/L 129655006 6/1/2021 Vogtle DW - Gamma K-40 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Fe-59 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Co-58 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Co-60 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Zn-65 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Zr-95 RPUR 6/1/2021 0 pCi/L 129656005 6/1/2021 Vogtle DW - Gamma Fe-59 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma Co-58 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma Co-60 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma Zn-65 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma Zr-95 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma I-131 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma Cs-134 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma Cs-137 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma Ba-140 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle Water H-3 Tritium FPUR 7/5/2021 319 pCi/L 130438006 7/5/2021 Vogtle DW - Beta Gross Beta FPUR 7/5/2021 3.689 pCi/L 130196006 7/5/2021 Vogtle DW - Beta Gross Alpha FPUR 7/5/2021 0 pCi/L 130196006 7/5/2021 Vogtle DW - Gamma La-140 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma Be-7 FPOR 6/1/2021 0 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma K-40 FPOR 6/1/2021 42.858 pCi/L 129656004 6/1/2021 Vogtle DW - Gamma I-131 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma Cs-134 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma Cs-137 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma Ba-140 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma La-140 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma Be-7 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma K-40 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma Fe-59 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma Co-58 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma Co-60 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Beta Gross Alpha FPUR 8/3/2021 0 pCi/L 130593006 8/3/2021 Vogtle DW - Beta Gross Beta FPUR 8/3/2021 6.843 pCi/L 130593006 8/3/2021 Vogtle DW - Beta Gross Beta FPUR 9/7/2021 4.462 pCi/L 131123006 9/7/2021 Vogtle DW - Gamma Zn-65 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle DW - Gamma Zr-95 RPOR 6/1/2021 0 pCi/L 129656003 6/1/2021 Vogtle Charcoal Ct I-131 GIR 6/1/2021 0 pCi/m3 129658002 6/1/2021 Vogtle Charcoal Ct I-131 WAY 6/1/2021 0 pCi/m3 129658001 6/1/2021 Vogtle Charcoal Ct I-131 HAN 6/1/2021 0 pCi/m3 129658007 6/1/2021 Vogtle Charcoal Ct I-131 RRD 6/1/2021 0 pCi/m3 129658006 6/1/2021 Vogtle Charcoal Ct I-131 SIM 6/1/2021 0 pCi/m3 129658003 6/1/2021 Vogtle Charcoal Ct I-131 MET 6/1/2021 0 pCi/m3 129658005 6/1/2021 Vogtle Charcoal Ct I-131 DIS 6/1/2021 0 pCi/m3 129658004 6/1/2021 Vogtle Charcoal Ct I-131 GIR 6/8/2021 0 pCi/m3 129798002 6/8/2021 Vogtle Milk Gamma Cs-137 GIR 6/8/2021 2.0678 pCi/L 129795002 6/8/2021 Vogtle Milk Gamma K-40 GIR 6/8/2021 1350.7 pCi/L 129795002 6/8/2021 Vogtle Milk Gamma Be-7 GIR 6/8/2021 0 pCi/L 129795002 6/8/2021 Vogtle DW - Beta Gross Alpha FPUR 9/7/2021 0 pCi/L 131123006 9/7/2021 Vogtle Milk Gamma I-131 GIR 6/8/2021 0 pCi/L 129795002 6/8/2021 Vogtle Milk Gamma Cs-134 GIR 6/8/2021 0 pCi/L 129795002 6/8/2021 Vogtle Milk Gamma Ba-140 GIR 6/8/2021 0 pCi/L 129795002 6/8/2021 Vogtle Milk Gamma La-140 GIR 6/8/2021 0 pCi/L 129795002 6/8/2021

Vogtle Charcoal Ct I-131 WAY 6/8/2021 0 pCi/m3 129798001 6/8/2021 Vogtle Milk Gamma Be-7 Milky Way 6/8/2021 0 pCi/L 129795001 6/8/2021 Vogtle Milk Gamma La-140 Milky Way 6/8/2021 0 pCi/L 129795001 6/8/2021 Vogtle Milk Gamma Ba-140 Milky Way 6/8/2021 0 pCi/L 129795001 6/8/2021 Vogtle Milk Gamma Cs-134 Milky Way 6/8/2021 0 pCi/L 129795001 6/8/2021 Vogtle Milk Gamma I-131 Milky Way 6/8/2021 0 pCi/L 129795001 6/8/2021 Vogtle Milk Gamma K-40 Milky Way 6/8/2021 1346 pCi/L 129795001 6/8/2021 Vogtle Milk Gamma Cs-137 Milky Way 6/8/2021 0 pCi/L 129795001 6/8/2021 Vogtle DW - Beta Gross Alpha FPUR 10/5/2021 0 pCi/L 131519006 10/5/2021 Vogtle DW - Beta Gross Beta FPUR 10/5/2021 5.151 pCi/L 131519006 10/5/2021 Vogtle Charcoal Ct I-131 HAN 6/8/2021 0 pCi/m3 129798007 6/8/2021 Vogtle Charcoal Ct I-131 RRD 6/8/2021 0 pCi/m3 129798006 6/8/2021 Vogtle Water H-3 Tritium FPUR 10/5/2021 1050 pCi/L 131707006 10/5/2021 Vogtle DW - Beta Gross Beta FPUR 11/2/2021 2.412 pCi/L 131850006 11/2/2021 Vogtle DW - Beta Gross Alpha FPUR 11/2/2021 0 pCi/L 131850006 11/2/2021 Vogtle Charcoal Ct I-131 SIM 6/8/2021 0 pCi/m3 129798003 6/8/2021 Vogtle Charcoal Ct I-131 MET 6/8/2021 0 pCi/m3 129798005 6/8/2021 Vogtle Charcoal Ct I-131 DIS 6/8/2021 0 pCi/m3 129798004 6/8/2021 Vogtle River Water Fe-59 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water Co-58 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water Co-60 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water Zn-65 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water Zr-95 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water I-131 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water Cs-134 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water Cs-137 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water Ba-140 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water La-140 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water Be-7 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water K-40 1495 6/8/2021 0 pCi/L 129796003 6/8/2021 Vogtle River Water Zn-65 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water Zr-95 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water I-131 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water Cs-134 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water Cs-137 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle DW - Beta Gross Alpha FPUR 12/8/2021 0 pCi/L 132149006 12/8/2021 Vogtle DW - Beta Gross Beta FPUR 12/8/2021 2.296 pCi/L 132149006 12/8/2021 Vogtle River Water Ba-140 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water La-140 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water Be-7 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water K-40 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water Fe-59 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle Air Filters Gross Beta GIR 1/5/2021 0.01767 pCi/m3 127933002 1/5/2021 Vogtle River Water Co-58 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water Co-60 1504 6/8/2021 0 pCi/L 129796002 6/8/2021 Vogtle River Water Zn-65 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle River Water Zr-95 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle River Water I-131 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle River Water Cs-134 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle Air Filters Gross Beta GIR 1/12/2021 0.02565 pCi/m3 128041002 1/12/2021 Vogtle River Water Cs-137 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle River Water Ba-140 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle Air Filters Gross Beta GIR 1/19/2021 0.02558 pCi/m3 128181002 1/19/2021 Vogtle River Water La-140 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle River Water Be-7 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle River Water K-40 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle River Water Fe-59 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle River Water Co-58 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle River Water Co-60 1512 6/8/2021 0 pCi/L 129796001 6/8/2021 Vogtle Air Filters Gross Beta GIR 1/26/2021 0.02636 pCi/m3 128275002 1/26/2021 Vogtle Charcoal Ct I-131 GIR 6/15/2021 0 pCi/m3 129929002 6/15/2021 Vogtle Air Filters Gross Beta GIR 2/1/2021 0.02175 pCi/m3 128356002 2/1/2021 Vogtle Charcoal Ct I-131 WAY 6/15/2021 0 pCi/m3 129929001 6/15/2021 Vogtle Charcoal Ct I-131 HAN 6/15/2021 0 pCi/m3 129929007 6/15/2021 Vogtle Charcoal Ct I-131 RRD 6/15/2021 0 pCi/m3 129929006 6/15/2021 Vogtle Charcoal Ct I-131 SIM 6/15/2021 0 pCi/m3 129929003 6/15/2021 Vogtle Charcoal Ct I-131 MET 6/15/2021 0 pCi/m3 129929005 6/15/2021 Vogtle Charcoal Ct I-131 DIS 6/15/2021 0 pCi/m3 129929004 6/15/2021 Vogtle Milk Gamma La-140 GIR 6/22/2021 0 pCi/L 130034002 6/22/2021 Vogtle Milk Gamma Be-7 GIR 6/22/2021 0 pCi/L 130034002 6/22/2021 Vogtle Air Filters Gross Beta GIR 2/9/2021 0.01652 pCi/m3 128458002 2/9/2021 Vogtle Milk Gamma K-40 GIR 6/22/2021 1297.4 pCi/L 130034002 6/22/2021 Vogtle Air Filters Gross Beta GIR 2/15/2021 0.01156 pCi/m3 128534002 2/15/2021 Vogtle Milk Gamma I-131 GIR 6/22/2021 0 pCi/L 130034002 6/22/2021 Vogtle Milk Gamma Cs-134 GIR 6/22/2021 0 pCi/L 130034002 6/22/2021 Vogtle Milk Gamma Ba-140 GIR 6/22/2021 0 pCi/L 130034002 6/22/2021 Vogtle Milk Gamma Cs-137 GIR 6/22/2021 0 pCi/L 130034002 6/22/2021 Vogtle Charcoal Ct I-131 GIR 6/22/2021 0 pCi/m3 130042002 6/22/2021 Vogtle Charcoal Ct I-131 WAY 6/22/2021 0 pCi/m3 130042001 6/22/2021 Vogtle Milk Gamma K-40 Milky Way 6/22/2021 1406.9 pCi/L 130034001 6/22/2021 Vogtle Milk Gamma Be-7 Milky Way 6/22/2021 0 pCi/L 130034001 6/22/2021 Vogtle Air Filters Gross Beta GIR 2/23/2021 0.01812 pCi/m3 128643002 2/23/2021 Vogtle Milk Gamma La-140 Milky Way 6/22/2021 0 pCi/L 130034001 6/22/2021 Vogtle Milk Gamma Ba-140 Milky Way 6/22/2021 0 pCi/L 130034001 6/22/2021 Vogtle Air Filters Gross Beta GIR 3/2/2021 0.02425 pCi/m3 128782002 3/2/2021

Vogtle Air Filters Gross Beta GIR 3/9/2021 0.02555 pCi/m3 128863002 3/9/2021 Vogtle Milk Gamma Cs-134 Milky Way 6/22/2021 0 pCi/L 130034001 6/22/2021 Vogtle Milk Gamma I-131 Milky Way 6/22/2021 0 pCi/L 130034001 6/22/2021 Vogtle Milk Gamma Cs-137 Milky Way 6/22/2021 0 pCi/L 130034001 6/22/2021 Vogtle Charcoal Ct I-131 HAN 6/22/2021 0 pCi/m3 130042007 6/22/2021 Vogtle Charcoal Ct I-131 RRD 6/22/2021 0 pCi/m3 130042006 6/22/2021 Vogtle Charcoal Ct I-131 SIM 6/22/2021 0 pCi/m3 130042003 6/22/2021 Vogtle Charcoal Ct I-131 MET 6/22/2021 0 pCi/m3 130042005 6/22/2021 Vogtle Charcoal Ct I-131 DIS 6/22/2021 0 pCi/m3 130042004 6/22/2021 Vogtle Air Filters Gross Beta GIR 3/16/2021 0.02628 pCi/m3 128931002 3/16/2021 Vogtle Air Qtr Comp I-131 GIR 6/29/2021 0 pCi/m3 130249002 6/29/2021 Vogtle Air Filters Gross Beta GIR 3/23/2021 0.01964 pCi/m3 128999002 3/23/2021 Vogtle Air Qtr Comp Cs-134 GIR 6/29/2021 0 pCi/m3 130249002 6/29/2021 Vogtle Air Qtr Comp Cs-137 GIR 6/29/2021 0 pCi/m3 130249002 6/29/2021 Vogtle Air Qtr Comp Be-7 GIR 6/29/2021 0.09487 pCi/m3 130249002 6/29/2021 Vogtle Charcoal Ct I-131 GIR 6/29/2021 0 pCi/m3 130146002 6/29/2021 Vogtle Air Qtr Comp Cs-134 WAY 6/29/2021 0 pCi/m3 130249001 6/29/2021 Vogtle Air Qtr Comp I-131 WAY 6/29/2021 0 pCi/m3 130249001 6/29/2021 Vogtle Charcoal Ct I-131 WAY 6/29/2021 0 pCi/m3 130146001 6/29/2021 Vogtle Air Qtr Comp Be-7 WAY 6/29/2021 0.1069 pCi/m3 130249001 6/29/2021 Vogtle Air Qtr Comp Cs-137 WAY 6/29/2021 0 pCi/m3 130249001 6/29/2021 Vogtle Air Filters Gross Beta GIR 3/30/2021 0.01655 pCi/m3 129044002 3/30/2021 Vogtle Vegetation Be-7 WAY 6/29/2021 198.41 pCi/Kg 130147001 6/29/2021 Vogtle Vegetation K-40 WAY 6/29/2021 3924 pCi/Kg 130147001 6/29/2021 Vogtle Vegetation Cs-134 WAY 6/29/2021 0 pCi/Kg 130147001 6/29/2021 Vogtle Vegetation I-131 WAY 6/29/2021 0 pCi/Kg 130147001 6/29/2021 Vogtle Vegetation Cs-137 WAY 6/29/2021 0 pCi/Kg 130147001 6/29/2021 Vogtle Air Filters Gross Beta GIR 4/5/2021 0.02624 pCi/m3 129119002 4/5/2021 Vogtle Vegetation Cs-134 HAN 6/29/2021 0 pCi/Kg 130147003 6/29/2021 Vogtle Air Filters Gross Beta GIR 4/13/2021 0.0286 pCi/m3 129199002 4/13/2021 Vogtle Vegetation I-131 HAN 6/29/2021 0 pCi/Kg 130147003 6/29/2021 Vogtle Vegetation Be-7 HAN 6/29/2021 1261.7 pCi/Kg 130147003 6/29/2021 Vogtle Vegetation K-40 HAN 6/29/2021 2642 pCi/Kg 130147003 6/29/2021 Vogtle Vegetation Cs-137 HAN 6/29/2021 0 pCi/Kg 130147003 6/29/2021 Vogtle Charcoal Ct I-131 HAN 6/29/2021 0 pCi/m3 130146007 6/29/2021 Vogtle Air Qtr Comp Cs-137 HAN 6/29/2021 0 pCi/m3 130249007 6/29/2021 Vogtle Air Qtr Comp Cs-134 HAN 6/29/2021 0 pCi/m3 130249007 6/29/2021 Vogtle Air Filters Gross Beta GIR 4/20/2021 0.02989 pCi/m3 129250002 4/20/2021 Vogtle Air Qtr Comp I-131 HAN 6/29/2021 0 pCi/m3 130249007 6/29/2021 Vogtle Air Qtr Comp Be-7 HAN 6/29/2021 0.08807 pCi/m3 130249007 6/29/2021 Vogtle Air Qtr Comp I-131 RRD 6/29/2021 0 pCi/m3 130249006 6/29/2021 Vogtle Air Qtr Comp Cs-134 RRD 6/29/2021 0 pCi/m3 130249006 6/29/2021 Vogtle Air Qtr Comp Cs-137 RRD 6/29/2021 0 pCi/m3 130249006 6/29/2021 Vogtle Air Qtr Comp Be-7 RRD 6/29/2021 0.1245 pCi/m3 130249006 6/29/2021 Vogtle Charcoal Ct I-131 RRD 6/29/2021 0 pCi/m3 130146006 6/29/2021 Vogtle Air Qtr Comp Be-7 SIM 6/29/2021 0.1074 pCi/m3 130249003 6/29/2021 Vogtle Air Filters Gross Beta GIR 4/27/2021 0.02394 pCi/m3 129295002 4/27/2021 Vogtle Charcoal Ct I-131 SIM 6/29/2021 0 pCi/m3 130146003 6/29/2021 Vogtle Air Filters Gross Beta GIR 5/4/2021 0.02209 pCi/m3 129366002 5/4/2021 Vogtle Air Qtr Comp Cs-137 SIM 6/29/2021 0 pCi/m3 130249003 6/29/2021 Vogtle Air Qtr Comp Cs-134 SIM 6/29/2021 0 pCi/m3 130249003 6/29/2021 Vogtle Air Qtr Comp I-131 SIM 6/29/2021 0 pCi/m3 130249003 6/29/2021 Vogtle Vegetation Cs-137 SIM 6/29/2021 0 pCi/Kg 130147002 6/29/2021 Vogtle Vegetation I-131 SIM 6/29/2021 0 pCi/Kg 130147002 6/29/2021 Vogtle Vegetation K-40 SIM 6/29/2021 4198.1 pCi/Kg 130147002 6/29/2021 Vogtle Vegetation Be-7 SIM 6/29/2021 365.62 pCi/Kg 130147002 6/29/2021 Vogtle Vegetation Cs-134 SIM 6/29/2021 0 pCi/Kg 130147002 6/29/2021 Vogtle Air Filters Gross Beta GIR 5/11/2021 0.02547 pCi/m3 129445002 5/11/2021 Vogtle Air Qtr Comp I-131 MET 6/29/2021 0 pCi/m3 130249005 6/29/2021 Vogtle Air Filters Gross Beta GIR 5/18/2021 0.0218 pCi/m3 129520002 5/18/2021 Vogtle Air Qtr Comp Cs-134 MET 6/29/2021 0 pCi/m3 130249005 6/29/2021 Vogtle Air Qtr Comp Cs-137 MET 6/29/2021 0 pCi/m3 130249005 6/29/2021 Vogtle Air Qtr Comp Be-7 MET 6/29/2021 0.08622 pCi/m3 130249005 6/29/2021 Vogtle Charcoal Ct I-131 MET 6/29/2021 0 pCi/m3 130146005 6/29/2021 Vogtle Charcoal Ct I-131 DIS 6/29/2021 0 pCi/m3 130146004 6/29/2021 Vogtle Air Qtr Comp I-131 DIS 6/29/2021 0 pCi/m3 130249004 6/29/2021 Vogtle Air Qtr Comp Cs-134 DIS 6/29/2021 0 pCi/m3 130249004 6/29/2021 Vogtle Air Qtr Comp Cs-137 DIS 6/29/2021 0 pCi/m3 130249004 6/29/2021 Vogtle Air Qtr Comp Be-7 DIS 6/29/2021 0.07968 pCi/m3 130249004 6/29/2021 Vogtle Air Filters Gross Beta GIR 5/25/2021 0.02197 pCi/m3 129573002 5/25/2021 Vogtle Air Filters Gross Beta GIR 6/1/2021 0.01965 pCi/m3 129657002 6/1/2021 Vogtle DW - Gamma I-131 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle DW - Gamma Cs-134 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle Air Filters Gross Beta GIR 6/8/2021 0.007774 pCi/m3 129797002 6/8/2021 Vogtle DW - Gamma Cs-137 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle DW - Gamma Ba-140 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle DW - Gamma La-140 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle DW - Gamma Be-7 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle DW - Gamma K-40 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle DW - Gamma Fe-59 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle Air Filters Gross Beta GIR 6/15/2021 0.008468 pCi/m3 129928002 6/15/2021 Vogtle DW - Gamma Co-58 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle DW - Gamma Co-60 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle DW - Gamma Zn-65 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021 Vogtle DW - Gamma Zr-95 FPOR 7/5/2021 0 pCi/L 130197004 7/5/2021

Vogtle DW - Gamma Co-58 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle DW - Gamma Co-60 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle DW - Gamma Zn-65 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle DW - Gamma Zr-95 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle Air Filters Gross Beta GIR 6/22/2021 0.02327 pCi/m3 130036002 6/22/2021 Vogtle Air Filters Gross Beta GIR 6/29/2021 0.01517 pCi/m3 130145002 6/29/2021 Vogtle DW - Gamma I-131 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle DW - Gamma Cs-134 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle DW - Gamma Cs-137 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle DW - Gamma Ba-140 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle DW - Gamma La-140 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle Air Filters Gross Beta GIR 7/6/2021 0.01581 pCi/m3 130206002 7/6/2021 Vogtle DW - Gamma Be-7 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle Air Filters Gross Beta GIR 7/12/2021 0.01368 pCi/m3 130290002 7/12/2021 Vogtle DW - Gamma K-40 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle DW - Gamma Fe-59 RPOR 7/5/2021 0 pCi/L 130197003 7/5/2021 Vogtle DW - Gamma Fe-59 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle DW - Gamma Co-58 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle DW - Gamma Co-60 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle Air Filters Gross Beta GIR 7/19/2021 0.01331 pCi/m3 130422002 7/19/2021 Vogtle DW - Gamma Zn-65 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle DW - Gamma Zr-95 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle Air Filters Gross Beta GIR 7/27/2021 0.0197 pCi/m3 130527002 7/27/2021 Vogtle DW - Gamma I-131 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle DW - Gamma Cs-134 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle DW - Gamma Cs-137 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle DW - Gamma Ba-140 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle DW - Gamma La-140 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle DW - Gamma Be-7 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle DW - Gamma K-40 FPUR 7/5/2021 0 pCi/L 130197006 7/5/2021 Vogtle Air Filters Gross Beta GIR 8/3/2021 0.02794 pCi/m3 130595002 8/3/2021 Vogtle DW - Gamma Zn-65 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma Zr-95 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma I-131 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma Cs-134 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma K-40 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma Fe-59 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle Air Filters Gross Beta GIR 8/10/2021 0.0159 pCi/m3 130719002 8/10/2021 Vogtle Air Filters Gross Beta GIR 8/17/2021 0.01506 pCi/m3 130835002 8/17/2021 Vogtle DW - Gamma Co-58 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle Air Filters Gross Beta GIR 8/24/2021 0.01269 pCi/m3 130902002 8/24/2021 Vogtle DW - Gamma Co-60 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma Cs-137 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma Ba-140 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma La-140 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma Be-7 RPUR 7/5/2021 0 pCi/L 130197005 7/5/2021 Vogtle DW - Gamma Fe-59 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle DW - Gamma Co-58 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle DW - Gamma Co-60 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle Air Filters Gross Beta GIR 8/31/2021 0.02533 pCi/m3 131012002 8/31/2021 Vogtle DW - Gamma Zn-65 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle Air Filters Gross Beta GIR 9/7/2021 0.02438 pCi/m3 131125002 9/7/2021 Vogtle Air Filters Gross Beta GIR 9/14/2021 0.02399 pCi/m3 131254002 9/14/2021 Vogtle DW - Gamma Zr-95 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle DW - Gamma I-131 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle DW - Gamma Cs-134 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle DW - Gamma Cs-137 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle DW - Gamma Ba-140 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle DW - Gamma La-140 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle DW - Gamma Be-7 FAUC 7/6/2021 0 pCi/L 130197002 7/6/2021 Vogtle Air Filters Gross Beta GIR 9/21/2021 0.01509 pCi/m3 131332002 9/21/2021 Vogtle DW - Gamma K-40 FAUC 7/6/2021 34.914 pCi/L 130197002 7/6/2021 Vogtle DW - Gamma Fe-59 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle DW - Gamma Co-58 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle DW - Gamma Co-60 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle DW - Gamma Zn-65 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle DW - Gamma Zr-95 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle DW - Gamma I-131 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle DW - Gamma Cs-134 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle Air Filters Gross Beta GIR 9/28/2021 0.01493 pCi/m3 131422002 9/28/2021 Vogtle DW - Gamma Cs-137 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle DW - Gamma Ba-140 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle DW - Gamma La-140 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle DW - Gamma Be-7 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle Air Filters Gross Beta GIR 10/5/2021 0.01818 pCi/m3 131549002 10/5/2021 Vogtle DW - Gamma K-40 RAUC 7/6/2021 0 pCi/L 130197001 7/6/2021 Vogtle Air Filters Gross Beta GIR 10/12/2021 0.00757 pCi/m3 131616002 10/12/2021 Vogtle Charcoal Ct I-131 WAY 7/6/2021 0 pCi/m3 130207001 7/6/2021 Vogtle Charcoal Ct I-131 GIR 7/6/2021 0 pCi/m3 130207002 7/6/2021 Vogtle Charcoal Ct I-131 HAN 7/6/2021 0 pCi/m3 130207007 7/6/2021 Vogtle Charcoal Ct I-131 RRD 7/6/2021 0 pCi/m3 130207006 7/6/2021 Vogtle Charcoal Ct I-131 SIM 7/6/2021 0 pCi/m3 130207003 7/6/2021 Vogtle Charcoal Ct I-131 MET 7/6/2021 0 pCi/m3 130207005 7/6/2021 Vogtle Charcoal Ct I-131 DIS 7/6/2021 0 pCi/m3 130207004 7/6/2021 Vogtle Charcoal Ct I-131 DIS 7/12/2021 0 pCi/m3 130291004 7/12/2021

Vogtle Air Filters Gross Beta GIR 10/19/2021 0.01706 pCi/m3 131695002 10/19/2021 Vogtle Charcoal Ct I-131 SIM 7/12/2021 0 pCi/m3 130291003 7/12/2021 Vogtle Air Filters Gross Beta GIR 10/24/2021 0.02124 pCi/m3 131756002 10/24/2021 Vogtle Charcoal Ct I-131 MET 7/12/2021 0 pCi/m3 130291005 7/12/2021 Vogtle Charcoal Ct I-131 RRD 7/12/2021 0 pCi/m3 130291006 7/12/2021 Vogtle Charcoal Ct I-131 HAN 7/12/2021 0 pCi/m3 130291007 7/12/2021 Vogtle Charcoal Ct I-131 WAY 7/12/2021 0 pCi/m3 130291001 7/12/2021 Vogtle Charcoal Ct I-131 GIR 7/12/2021 0 pCi/m3 130291002 7/12/2021 Vogtle Milk Gamma K-40 GIR 7/13/2021 1292.1 pCi/L 130284002 7/13/2021 Vogtle Milk Gamma I-131 GIR 7/13/2021 0 pCi/L 130284002 7/13/2021 Vogtle Milk Gamma Cs-134 GIR 7/13/2021 0 pCi/L 130284002 7/13/2021 Vogtle Air Filters Gross Beta GIR 11/1/2021 0.009931 pCi/m3 131853002 11/1/2021 Vogtle Milk Gamma Ba-140 GIR 7/13/2021 0 pCi/L 130284002 7/13/2021 Vogtle Milk Gamma La-140 GIR 7/13/2021 0 pCi/L 130284002 7/13/2021 Vogtle Milk Gamma Be-7 GIR 7/13/2021 0 pCi/L 130284002 7/13/2021 Vogtle Milk Gamma Cs-137 GIR 7/13/2021 0 pCi/L 130284002 7/13/2021 Vogtle Milk Gamma Be-7 Milky Way 7/13/2021 0 pCi/L 130284001 7/13/2021 Vogtle Milk Gamma La-140 Milky Way 7/13/2021 0 pCi/L 130284001 7/13/2021 Vogtle Milk Gamma Ba-140 Milky Way 7/13/2021 0 pCi/L 130284001 7/13/2021 Vogtle Milk Gamma Cs-134 Milky Way 7/13/2021 0 pCi/L 130284001 7/13/2021 Vogtle Air Filters Gross Beta GIR 11/9/2021 0.02375 pCi/m3 131941002 11/9/2021 Vogtle Milk Gamma I-131 Milky Way 7/13/2021 0 pCi/L 130284001 7/13/2021 Vogtle Air Filters Gross Beta GIR 11/16/2021 0.0259 pCi/m3 131993002 11/16/2021 Vogtle Air Filters Gross Beta GIR 11/22/2021 0.02061 pCi/m3 132036002 11/22/2021 Vogtle Milk Gamma K-40 Milky Way 7/13/2021 1343.9 pCi/L 130284001 7/13/2021 Vogtle Air Filters Gross Beta GIR 11/29/2021 0.02401 pCi/m3 132085002 11/29/2021 Vogtle Milk Gamma Cs-137 Milky Way 7/13/2021 0 pCi/L 130284001 7/13/2021 Vogtle River Water Be-7 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water K-40 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water Fe-59 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water Co-58 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water Co-60 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water Zn-65 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle Air Filters Gross Beta GIR 12/7/2021 0.04583 pCi/m3 132155002 12/7/2021 Vogtle River Water Zr-95 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle Air Filters Gross Beta GIR 12/13/2021 0.024 pCi/m3 132220002 12/13/2021 Vogtle River Water I-131 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water Cs-134 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water Cs-137 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water Ba-140 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water La-140 1495 7/13/2021 0 pCi/L 130285003 7/13/2021 Vogtle River Water Co-58 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water Co-60 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water Zn-65 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water Zr-95 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water I-131 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water Cs-134 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water Cs-137 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water Ba-140 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle Air Filters Gross Beta GIR 12/21/2021 0.01587 pCi/m3 132273002 12/21/2021 Vogtle River Water La-140 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water Be-7 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water K-40 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle Air Filters Gross Beta GIR 12/28/2021 0.02582 pCi/m3 132323002 12/28/2021 Vogtle River Water Fe-59 1504 7/13/2021 0 pCi/L 130285002 7/13/2021 Vogtle River Water K-40 1512 7/13/2021 139.81 pCi/L 130285001 7/13/2021 Vogtle Air Filters Gross Beta HAN 1/5/2021 0.02463 pCi/m3 127933007 1/5/2021 Vogtle River Water Fe-59 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle Air Filters Gross Beta HAN 1/12/2021 0.02783 pCi/m3 128041007 1/12/2021 Vogtle River Water Co-58 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle Air Filters Gross Beta HAN 1/19/2021 0.0282 pCi/m3 128181007 1/19/2021 Vogtle River Water Co-60 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle River Water Zn-65 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle River Water Zr-95 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle River Water I-131 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle Air Filters Gross Beta HAN 1/26/2021 0.02231 pCi/m3 128275007 1/26/2021 Vogtle River Water Cs-134 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle Air Filters Gross Beta HAN 2/1/2021 0.02002 pCi/m3 128356007 2/1/2021 Vogtle River Water Cs-137 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle River Water Ba-140 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle Air Filters Gross Beta HAN 2/9/2021 0.01859 pCi/m3 128458007 2/9/2021 Vogtle River Water La-140 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle Air Filters Gross Beta HAN 2/15/2021 0.01539 pCi/m3 128534007 2/15/2021 Vogtle River Water Be-7 1512 7/13/2021 0 pCi/L 130285001 7/13/2021 Vogtle Air Filters Gross Beta HAN 2/23/2021 0.02342 pCi/m3 128643007 2/23/2021 Vogtle Charcoal Ct I-131 DIS 7/19/2021 0 pCi/m3 130423004 7/19/2021 Vogtle Air Filters Gross Beta HAN 3/2/2021 0.02448 pCi/m3 128782007 3/2/2021 Vogtle Air Filters Gross Beta HAN 3/9/2021 0.02346 pCi/m3 128863007 3/9/2021 Vogtle Charcoal Ct I-131 MET 7/19/2021 0 pCi/m3 130423005 7/19/2021 Vogtle Air Filters Gross Beta HAN 3/16/2021 0.02785 pCi/m3 128931007 3/16/2021 Vogtle Charcoal Ct I-131 SIM 7/19/2021 0 pCi/m3 130423003 7/19/2021 Vogtle Air Filters Gross Beta HAN 3/23/2021 0.01712 pCi/m3 128999007 3/23/2021 Vogtle Charcoal Ct I-131 RRD 7/19/2021 0 pCi/m3 130423006 7/19/2021 Vogtle Charcoal Ct I-131 HAN 7/19/2021 0 pCi/m3 130423007 7/19/2021 Vogtle Charcoal Ct I-131 WAY 7/19/2021 0 pCi/m3 130423001 7/19/2021

Vogtle Charcoal Ct I-131 GIR 7/19/2021 0 pCi/m3 130423002 7/19/2021 Vogtle Charcoal Ct I-131 GIR 7/27/2021 0 pCi/m3 130528002 7/27/2021 Vogtle Milk Gamma Cs-137 GIR 7/27/2021 1.6063 pCi/L 130521002 7/27/2021 Vogtle Milk Gamma Cs-134 GIR 7/27/2021 0 pCi/L 130521002 7/27/2021 Vogtle Milk Gamma I-131 GIR 7/27/2021 0 pCi/L 130521002 7/27/2021 Vogtle Milk Gamma K-40 GIR 7/27/2021 1292.5 pCi/L 130521002 7/27/2021 Vogtle Milk Gamma Be-7 GIR 7/27/2021 0 pCi/L 130521002 7/27/2021 Vogtle Air Filters Gross Beta HAN 3/30/2021 0.02069 pCi/m3 129044007 3/30/2021 Vogtle Milk Gamma La-140 GIR 7/27/2021 0 pCi/L 130521002 7/27/2021 Vogtle Milk Gamma Ba-140 GIR 7/27/2021 0 pCi/L 130521002 7/27/2021 Vogtle Air Filters Gross Beta HAN 4/5/2021 0.02357 pCi/m3 129119007 4/5/2021 Vogtle Charcoal Ct I-131 WAY 7/27/2021 0 pCi/m3 130528001 7/27/2021 Vogtle Air Filters Gross Beta HAN 4/13/2021 0.02895 pCi/m3 129199007 4/13/2021 Vogtle Vegetation Cs-137 WAY 7/27/2021 0 pCi/Kg 130529001 7/27/2021 Vogtle Air Filters Gross Beta HAN 4/20/2021 0.02814 pCi/m3 129250007 4/20/2021 Vogtle Air Filters Gross Beta HAN 4/27/2021 0.02458 pCi/m3 129295007 4/27/2021 Vogtle Vegetation Cs-134 WAY 7/27/2021 0 pCi/Kg 130529001 7/27/2021 Vogtle Vegetation I-131 WAY 7/27/2021 0 pCi/Kg 130529001 7/27/2021 Vogtle Vegetation K-40 WAY 7/27/2021 4522.1 pCi/Kg 130529001 7/27/2021 Vogtle Vegetation Be-7 WAY 7/27/2021 507.62 pCi/Kg 130529001 7/27/2021 Vogtle Milk Gamma La-140 Milky Way 7/27/2021 0 pCi/L 130521001 7/27/2021 Vogtle Milk Gamma Ba-140 Milky Way 7/27/2021 0 pCi/L 130521001 7/27/2021 Vogtle Air Filters Gross Beta HAN 5/3/2021 0.02563 pCi/m3 129366007 5/3/2021 Vogtle Milk Gamma I-131 Milky Way 7/27/2021 0 pCi/L 130521001 7/27/2021 Vogtle Milk Gamma Cs-134 Milky Way 7/27/2021 0 pCi/L 130521001 7/27/2021 Vogtle Air Filters Gross Beta HAN 5/11/2021 0.02284 pCi/m3 129445007 5/11/2021 Vogtle Air Filters Gross Beta HAN 5/18/2021 0.02046 pCi/m3 129520007 5/18/2021 Vogtle Milk Gamma K-40 Milky Way 7/27/2021 1319.7 pCi/L 130521001 7/27/2021 Vogtle Milk Gamma Be-7 Milky Way 7/27/2021 0 pCi/L 130521001 7/27/2021 Vogtle Milk Gamma Cs-137 Milky Way 7/27/2021 0 pCi/L 130521001 7/27/2021 Vogtle Charcoal Ct I-131 HAN 7/27/2021 0 pCi/m3 130528007 7/27/2021 Vogtle Vegetation K-40 HAN 7/27/2021 4727.9 pCi/Kg 130529003 7/27/2021 Vogtle Vegetation I-131 HAN 7/27/2021 0 pCi/Kg 130529003 7/27/2021 Vogtle Vegetation Be-7 HAN 7/27/2021 728.04 pCi/Kg 130529003 7/27/2021 Vogtle Air Filters Gross Beta HAN 5/25/2021 0.02305 pCi/m3 129573007 5/25/2021 Vogtle Vegetation Cs-134 HAN 7/27/2021 0 pCi/Kg 130529003 7/27/2021 Vogtle Air Filters Gross Beta HAN 6/1/2021 0.02607 pCi/m3 129657007 6/1/2021 Vogtle Air Filters Gross Beta HAN 6/8/2021 0.01103 pCi/m3 129797007 6/8/2021 Vogtle Vegetation Cs-137 HAN 7/27/2021 0 pCi/Kg 130529003 7/27/2021 Vogtle Air Filters Gross Beta HAN 6/15/2021 0.01475 pCi/m3 129928007 6/15/2021 Vogtle Charcoal Ct I-131 RRD 7/27/2021 0 pCi/m3 130528006 7/27/2021 Vogtle Air Filters Gross Beta HAN 6/22/2021 0.02224 pCi/m3 130036007 6/22/2021 Vogtle Charcoal Ct I-131 SIM 7/27/2021 0 pCi/m3 130528003 7/27/2021 Vogtle Vegetation K-40 SIM 7/27/2021 4686.3 pCi/Kg 130529002 7/27/2021 Vogtle Vegetation I-131 SIM 7/27/2021 0 pCi/Kg 130529002 7/27/2021 Vogtle Vegetation Be-7 SIM 7/27/2021 578.28 pCi/Kg 130529002 7/27/2021 Vogtle Vegetation Cs-137 SIM 7/27/2021 0 pCi/Kg 130529002 7/27/2021 Vogtle Vegetation Cs-134 SIM 7/27/2021 0 pCi/Kg 130529002 7/27/2021 Vogtle Charcoal Ct I-131 MET 7/27/2021 0 pCi/m3 130528005 7/27/2021 Vogtle Charcoal Ct I-131 DIS 7/27/2021 0 pCi/m3 130528004 7/27/2021 Vogtle DW - Gamma I-131 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle DW - Gamma Cs-134 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle Air Filters Gross Beta HAN 6/29/2021 0.01493 pCi/m3 130145007 6/29/2021 Vogtle DW - Gamma Cs-137 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle Air Filters Gross Beta HAN 7/6/2021 0.01297 pCi/m3 130206007 7/6/2021 Vogtle DW - Gamma Ba-140 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle Air Filters Gross Beta HAN 7/12/2021 0.01774 pCi/m3 130290007 7/12/2021 Vogtle DW - Gamma La-140 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle Air Filters Gross Beta HAN 7/19/2021 0.01445 pCi/m3 130422007 7/19/2021 Vogtle DW - Gamma Be-7 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle DW - Gamma K-40 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle Air Filters Gross Beta HAN 7/27/2021 0.01808 pCi/m3 130527007 7/27/2021 Vogtle DW - Gamma Fe-59 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle DW - Gamma Co-58 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle DW - Gamma Co-60 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle DW - Gamma Zn-65 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle DW - Gamma Zr-95 FPUR 8/3/2021 0 pCi/L 130592006 8/3/2021 Vogtle Air Filters Gross Beta HAN 8/3/2021 0.03137 pCi/m3 130595007 8/3/2021 Vogtle Air Filters Gross Beta HAN 8/10/2021 0.02153 pCi/m3 130719007 8/10/2021 Vogtle Air Filters Gross Beta HAN 8/17/2021 0.01631 pCi/m3 130835007 8/17/2021 Vogtle DW - Gamma Fe-59 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle Air Filters Gross Beta HAN 8/24/2021 0.01326 pCi/m3 130902007 8/24/2021 Vogtle DW - Gamma Co-58 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle DW - Gamma Co-60 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle DW - Gamma Zn-65 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle DW - Gamma Zr-95 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle DW - Gamma I-131 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle Air Filters Gross Beta HAN 8/31/2021 0.02515 pCi/m3 131012007 8/31/2021 Vogtle Air Filters Gross Beta HAN 9/7/2021 0.02579 pCi/m3 131125007 9/7/2021 Vogtle DW - Gamma Cs-134 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle DW - Gamma Cs-137 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle Air Filters Gross Beta HAN 9/14/2021 0.0309 pCi/m3 131254007 9/14/2021 Vogtle DW - Gamma Ba-140 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle Air Filters Gross Beta HAN 9/21/2021 0.01857 pCi/m3 131332007 9/21/2021 Vogtle DW - Gamma La-140 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021

Vogtle Air Filters Gross Beta HAN 9/28/2021 0.02487 pCi/m3 131422007 9/28/2021 Vogtle DW - Gamma Be-7 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle DW - Gamma K-40 RPUR 8/3/2021 0 pCi/L 130592005 8/3/2021 Vogtle DW - Gamma Fe-59 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle DW - Gamma Co-58 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle DW - Gamma Co-60 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle DW - Gamma Zn-65 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle DW - Gamma Zr-95 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle DW - Gamma I-131 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle Air Filters Gross Beta HAN 10/5/2021 0.03877 pCi/m3 131549007 10/5/2021 Vogtle DW - Gamma Cs-134 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle Air Filters Gross Beta HAN 10/12/2021 0.01632 pCi/m3 131616007 10/12/2021 Vogtle DW - Gamma Cs-137 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle Air Filters Gross Beta HAN 10/19/2021 0.02503 pCi/m3 131695007 10/19/2021 Vogtle DW - Gamma Ba-140 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle DW - Gamma La-140 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle DW - Gamma Be-7 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle DW - Gamma K-40 RAUC 8/3/2021 0 pCi/L 130592001 8/3/2021 Vogtle DW - Gamma Fe-59 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle Air Filters Gross Beta HAN 10/24/2021 0.03966 pCi/m3 131756007 10/24/2021 Vogtle DW - Gamma Co-58 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle Air Filters Gross Beta HAN 11/1/2021 0.01704 pCi/m3 131853007 11/1/2021 Vogtle Air Filters Gross Beta HAN 11/9/2021 0.02393 pCi/m3 131941007 11/9/2021 Vogtle DW - Gamma Co-60 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle DW - Gamma Zn-65 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle Air Filters Gross Beta HAN 11/16/2021 0.02957 pCi/m3 131993007 11/16/2021 Vogtle DW - Gamma Zr-95 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle Air Filters Gross Beta HAN 11/22/2021 0.02642 pCi/m3 132036007 11/22/2021 Vogtle Air Filters Gross Beta HAN 11/29/2021 0.02898 pCi/m3 132085007 11/29/2021 Vogtle DW - Gamma I-131 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle DW - Gamma Cs-134 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle DW - Gamma Cs-137 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle DW - Gamma Ba-140 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle DW - Gamma La-140 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle DW - Gamma Be-7 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle Air Filters Gross Beta HAN 12/7/2021 0.0414 pCi/m3 132155007 12/7/2021 Vogtle Air Filters Gross Beta HAN 12/13/2021 0.0208 pCi/m3 132220007 12/13/2021 Vogtle DW - Gamma K-40 FPOR 8/3/2021 0 pCi/L 130592004 8/3/2021 Vogtle Air Filters Gross Beta HAN 12/21/2021 0.01718 pCi/m3 132273007 12/21/2021 Vogtle DW - Gamma K-40 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle Air Filters Gross Beta HAN 12/28/2021 0.02477 pCi/m3 132323007 12/28/2021 Vogtle DW - Gamma Fe-59 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle DW - Gamma Co-58 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle DW - Gamma Co-60 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle DW - Gamma Zn-65 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle Air Filters Gross Beta MET 1/5/2021 0.01852 pCi/m3 127933005 1/5/2021 Vogtle DW - Gamma Zr-95 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle DW - Gamma I-131 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle Air Filters Gross Beta MET 1/12/2021 0.02845 pCi/m3 128041005 1/12/2021 Vogtle Air Filters Gross Beta MET 1/19/2021 0.02647 pCi/m3 128181005 1/19/2021 Vogtle Air Filters Gross Beta MET 1/26/2021 0.02081 pCi/m3 128275005 1/26/2021 Vogtle DW - Gamma Cs-134 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle Air Filters Gross Beta MET 2/1/2021 0.0232 pCi/m3 128356005 2/1/2021 Vogtle DW - Gamma Cs-137 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle Air Filters Gross Beta MET 2/9/2021 0.01802 pCi/m3 128458005 2/9/2021 Vogtle DW - Gamma Ba-140 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle Air Filters Gross Beta MET 2/15/2021 0.009348 pCi/m3 128534005 2/15/2021 Vogtle DW - Gamma La-140 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle DW - Gamma Be-7 FAUC 8/3/2021 0 pCi/L 130592002 8/3/2021 Vogtle Air Filters Gross Beta MET 2/23/2021 0.01816 pCi/m3 128643005 2/23/2021 Vogtle Air Filters Gross Beta MET 3/2/2021 0.02534 pCi/m3 128782005 3/2/2021 Vogtle Air Filters Gross Beta MET 3/9/2021 0.02347 pCi/m3 128863005 3/9/2021 Vogtle DW - Gamma Fe-59 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle Air Filters Gross Beta MET 3/16/2021 0.02402 pCi/m3 128931005 3/16/2021 Vogtle DW - Gamma Co-58 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle DW - Gamma Co-60 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle Air Filters Gross Beta MET 3/23/2021 0.01888 pCi/m3 128999005 3/23/2021 Vogtle DW - Gamma Zn-65 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle DW - Gamma Zr-95 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle DW - Gamma I-131 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle DW - Gamma Cs-134 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle Air Filters Gross Beta MET 3/30/2021 0.01592 pCi/m3 129044005 3/30/2021 Vogtle Air Filters Gross Beta MET 4/5/2021 0.02362 pCi/m3 129119005 4/5/2021 Vogtle DW - Gamma Cs-137 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle Air Filters Gross Beta MET 4/13/2021 0.02791 pCi/m3 129199005 4/13/2021 Vogtle DW - Gamma Ba-140 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle DW - Gamma La-140 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle Air Filters Gross Beta MET 4/20/2021 0.02819 pCi/m3 129250005 4/20/2021 Vogtle DW - Gamma Be-7 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle Air Filters Gross Beta MET 4/27/2021 0.02176 pCi/m3 129295005 4/27/2021 Vogtle DW - Gamma K-40 RPOR 8/3/2021 0 pCi/L 130592003 8/3/2021 Vogtle Air Filters Gross Beta MET 5/3/2021 0.02794 pCi/m3 129366005 5/3/2021 Vogtle Charcoal Ct I-131 GIR 8/3/2021 0 pCi/m3 130596002 8/3/2021 Vogtle Air Filters Gross Beta MET 5/11/2021 0.01912 pCi/m3 129445005 5/11/2021 Vogtle Charcoal Ct I-131 WAY 8/3/2021 0 pCi/m3 130596001 8/3/2021

Vogtle Air Filters Gross Beta MET 5/18/2021 0.02076 pCi/m3 129520005 5/18/2021 Vogtle Air Filters Gross Beta MET 5/25/2021 0.02924 pCi/m3 129573005 5/25/2021 Vogtle Charcoal Ct I-131 HAN 8/3/2021 0 pCi/m3 130596007 8/3/2021 Vogtle Air Filters Gross Beta MET 6/1/2021 0.02394 pCi/m3 129657005 6/1/2021 Vogtle Charcoal Ct I-131 RRD 8/3/2021 0 pCi/m3 130596006 8/3/2021 Vogtle Air Filters Gross Beta MET 6/8/2021 0.01243 pCi/m3 129797005 6/8/2021 Vogtle Charcoal Ct I-131 SIM 8/3/2021 0 pCi/m3 130596003 8/3/2021 Vogtle Air Filters Gross Beta MET 6/15/2021 0.0136 pCi/m3 129928005 6/15/2021 Vogtle Charcoal Ct I-131 MET 8/3/2021 0 pCi/m3 130596005 8/3/2021 Vogtle Air Filters Gross Beta MET 6/22/2021 0.02234 pCi/m3 130036005 6/22/2021 Vogtle Charcoal Ct I-131 DIS 8/3/2021 0 pCi/m3 130596004 8/3/2021 Vogtle Air Filters Gross Beta MET 6/29/2021 0.01314 pCi/m3 130145005 6/29/2021 Vogtle Milk Gamma Cs-137 GIR 8/10/2021 1.4669 pCi/L 130706002 8/10/2021 Vogtle Milk Gamma I-131 GIR 8/10/2021 0 pCi/L 130706002 8/10/2021 Vogtle Milk Gamma K-40 GIR 8/10/2021 1331.3 pCi/L 130706002 8/10/2021 Vogtle Milk Gamma Be-7 GIR 8/10/2021 0 pCi/L 130706002 8/10/2021 Vogtle Milk Gamma La-140 GIR 8/10/2021 0 pCi/L 130706002 8/10/2021 Vogtle Air Filters Gross Beta MET 7/6/2021 0.01355 pCi/m3 130206005 7/6/2021 Vogtle Milk Gamma Ba-140 GIR 8/10/2021 0 pCi/L 130706002 8/10/2021 Vogtle Milk Gamma Cs-134 GIR 8/10/2021 0 pCi/L 130706002 8/10/2021 Vogtle Air Filters Gross Beta MET 7/12/2021 0.01137 pCi/m3 130290005 7/12/2021 Vogtle Air Filters Gross Beta MET 7/19/2021 0.01465 pCi/m3 130422005 7/19/2021 Vogtle Charcoal Ct I-131 GIR 8/10/2021 0 pCi/m3 130722002 8/10/2021 Vogtle Air Filters Gross Beta MET 7/27/2021 0.01733 pCi/m3 130527005 7/27/2021 Vogtle Charcoal Ct I-131 WAY 8/10/2021 0 pCi/m3 130722001 8/10/2021 Vogtle Air Filters Gross Beta MET 8/3/2021 0.0302 pCi/m3 130595005 8/3/2021 Vogtle Milk Gamma Cs-137 Milky Way 8/10/2021 1.4904 pCi/L 130706001 8/10/2021 Vogtle Milk Gamma I-131 Milky Way 8/10/2021 0 pCi/L 130706001 8/10/2021 Vogtle Air Filters Gross Beta MET 8/10/2021 0.01921 pCi/m3 130719005 8/10/2021 Vogtle Air Filters Gross Beta MET 8/17/2021 0.01511 pCi/m3 130835005 8/17/2021 Vogtle Milk Gamma K-40 Milky Way 8/10/2021 1290.1 pCi/L 130706001 8/10/2021 Vogtle Air Filters Gross Beta MET 8/24/2021 0.0135 pCi/m3 130902005 8/24/2021 Vogtle Milk Gamma Be-7 Milky Way 8/10/2021 0 pCi/L 130706001 8/10/2021 Vogtle Air Filters Gross Beta MET 8/31/2021 0.0261 pCi/m3 131012005 8/31/2021 Vogtle Milk Gamma La-140 Milky Way 8/10/2021 0 pCi/L 130706001 8/10/2021 Vogtle Air Filters Gross Beta MET 9/7/2021 0.02391 pCi/m3 131125005 9/7/2021 Vogtle Milk Gamma Ba-140 Milky Way 8/10/2021 0 pCi/L 130706001 8/10/2021 Vogtle Milk Gamma Cs-134 Milky Way 8/10/2021 0 pCi/L 130706001 8/10/2021 Vogtle Air Filters Gross Beta MET 9/14/2021 0.02592 pCi/m3 131254005 9/14/2021 Vogtle Charcoal Ct I-131 HAN 8/10/2021 0 pCi/m3 130722007 8/10/2021 Vogtle Air Filters Gross Beta MET 9/21/2021 0.01926 pCi/m3 131332005 9/21/2021 Vogtle Charcoal Ct I-131 RRD 8/10/2021 0 pCi/m3 130722006 8/10/2021 Vogtle Charcoal Ct I-131 SIM 8/10/2021 0 pCi/m3 130722003 8/10/2021 Vogtle Charcoal Ct I-131 MET 8/10/2021 0 pCi/m3 130722005 8/10/2021 Vogtle Charcoal Ct I-131 DIS 8/10/2021 0 pCi/m3 130722004 8/10/2021 Vogtle Air Filters Gross Beta MET 9/28/2021 0.0244 pCi/m3 131422005 9/28/2021 Vogtle Air Filters Gross Beta MET 10/5/2021 0.03887 pCi/m3 131549005 10/5/2021 Vogtle River Water Fe-59 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle Air Filters Gross Beta MET 10/12/2021 0.01704 pCi/m3 131616005 10/12/2021 Vogtle River Water Co-58 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle Air Filters Gross Beta MET 10/19/2021 0.0308 pCi/m3 131695005 10/19/2021 Vogtle River Water Co-60 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle River Water Zn-65 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle Air Filters Gross Beta MET 10/24/2021 0.04266 pCi/m3 131756005 10/24/2021 Vogtle River Water Zr-95 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle Air Filters Gross Beta MET 11/1/2021 0.01632 pCi/m3 131853005 11/1/2021 Vogtle Air Filters Gross Beta MET 11/9/2021 0.02366 pCi/m3 131941005 11/9/2021 Vogtle River Water I-131 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle Air Filters Gross Beta MET 11/16/2021 0.02266 pCi/m3 131993005 11/16/2021 Vogtle Air Filters Gross Beta MET 11/22/2021 0.02327 pCi/m3 132036005 11/22/2021 Vogtle River Water Cs-134 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle Air Filters Gross Beta MET 11/29/2021 0.02537 pCi/m3 132085005 11/29/2021 Vogtle River Water Cs-137 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle River Water Ba-140 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle Air Filters Gross Beta MET 12/7/2021 0.04577 pCi/m3 132155005 12/7/2021 Vogtle River Water La-140 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle Air Filters Gross Beta MET 12/13/2021 0.02286 pCi/m3 132220005 12/13/2021 Vogtle Air Filters Gross Beta MET 12/21/2021 0.01773 pCi/m3 132273005 12/21/2021 Vogtle River Water Be-7 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle River Water K-40 1495 8/10/2021 0 pCi/L 130725003 8/10/2021 Vogtle Air Filters Gross Beta MET 12/28/2021 0.02542 pCi/m3 132323005 12/28/2021 Vogtle River Water I-131 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Cs-134 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Cs-137 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Ba-140 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water La-140 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Be-7 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water K-40 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Fe-59 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Co-58 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Co-60 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Zn-65 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Zr-95 1504 8/10/2021 0 pCi/L 130725002 8/10/2021 Vogtle River Water Cs-134 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water Cs-137 1512 8/10/2021 0 pCi/L 130725001 8/10/2021

Vogtle River Water Ba-140 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water La-140 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water Be-7 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water K-40 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water Co-58 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water Fe-59 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water Co-60 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water Zn-65 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water Zr-95 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle River Water I-131 1512 8/10/2021 0 pCi/L 130725001 8/10/2021 Vogtle Charcoal Ct I-131 GIR 8/17/2021 0 pCi/m3 130836002 8/17/2021 Vogtle Charcoal Ct I-131 WAY 8/17/2021 0 pCi/m3 130836001 8/17/2021 Vogtle Charcoal Ct I-131 HAN 8/17/2021 0 pCi/m3 130836007 8/17/2021 Vogtle Charcoal Ct I-131 RRD 8/17/2021 0 pCi/m3 130836006 8/17/2021 Vogtle Charcoal Ct I-131 SIM 8/17/2021 0 pCi/m3 130836003 8/17/2021 Vogtle Charcoal Ct I-131 MET 8/17/2021 0 pCi/m3 130836005 8/17/2021 Vogtle Charcoal Ct I-131 DIS 8/17/2021 0 pCi/m3 130836004 8/17/2021 Vogtle Charcoal Ct I-131 GIR 8/24/2021 0 pCi/m3 130903002 8/24/2021 Vogtle Milk Gamma K-40 GIR 8/24/2021 1289.8 pCi/L 130901002 8/24/2021 Vogtle Milk Gamma Be-7 GIR 8/24/2021 0 pCi/L 130901002 8/24/2021 Vogtle Milk Gamma I-131 GIR 8/24/2021 0 pCi/L 130901002 8/24/2021 Vogtle Milk Gamma Cs-134 GIR 8/24/2021 0 pCi/L 130901002 8/24/2021 Vogtle Milk Gamma Ba-140 GIR 8/24/2021 0 pCi/L 130901002 8/24/2021 Vogtle Milk Gamma La-140 GIR 8/24/2021 0 pCi/L 130901002 8/24/2021 Vogtle Milk Gamma Cs-137 GIR 8/24/2021 0 pCi/L 130901002 8/24/2021 Vogtle Charcoal Ct I-131 WAY 8/24/2021 0 pCi/m3 130903001 8/24/2021 Vogtle Milk Gamma I-131 Milky Way 8/24/2021 0 pCi/L 130901001 8/24/2021 Vogtle Milk Gamma K-40 Milky Way 8/24/2021 1267.4 pCi/L 130901001 8/24/2021 Vogtle Milk Gamma Be-7 Milky Way 8/24/2021 0 pCi/L 130901001 8/24/2021 Vogtle Milk Gamma La-140 Milky Way 8/24/2021 0 pCi/L 130901001 8/24/2021 Vogtle Milk Gamma Ba-140 Milky Way 8/24/2021 0 pCi/L 130901001 8/24/2021 Vogtle Milk Gamma Cs-137 Milky Way 8/24/2021 0 pCi/L 130901001 8/24/2021 Vogtle Milk Gamma Cs-134 Milky Way 8/24/2021 0 pCi/L 130901001 8/24/2021 Vogtle Charcoal Ct I-131 HAN 8/24/2021 0 pCi/m3 130903007 8/24/2021 Vogtle Charcoal Ct I-131 RRD 8/24/2021 0 pCi/m3 130903006 8/24/2021 Vogtle Charcoal Ct I-131 SIM 8/24/2021 0 pCi/m3 130903003 8/24/2021 Vogtle Charcoal Ct I-131 MET 8/24/2021 0 pCi/m3 130903005 8/24/2021 Vogtle Charcoal Ct I-131 DIS 8/24/2021 0 pCi/m3 130903004 8/24/2021 Vogtle Charcoal Ct I-131 GIR 8/31/2021 0 pCi/m3 131015002 8/31/2021 Vogtle Vegetation Cs-134 WAY 8/31/2021 0 pCi/Kg 131019001 8/31/2021 Vogtle Vegetation I-131 WAY 8/31/2021 0 pCi/Kg 131019001 8/31/2021 Vogtle Vegetation Cs-137 WAY 8/31/2021 0 pCi/Kg 131019001 8/31/2021 Vogtle Vegetation Be-7 WAY 8/31/2021 904.64 pCi/Kg 131019001 8/31/2021 Vogtle Vegetation K-40 WAY 8/31/2021 4328.3 pCi/Kg 131019001 8/31/2021 Vogtle Charcoal Ct I-131 WAY 8/31/2021 0 pCi/m3 131015001 8/31/2021 Vogtle Vegetation Cs-134 HAN 8/31/2021 0 pCi/Kg 131019003 8/31/2021 Vogtle Vegetation I-131 HAN 8/31/2021 0 pCi/Kg 131019003 8/31/2021 Vogtle Vegetation K-40 HAN 8/31/2021 3265.6 pCi/Kg 131019003 8/31/2021 Vogtle Vegetation Be-7 HAN 8/31/2021 0 pCi/Kg 131019003 8/31/2021 Vogtle Vegetation Cs-137 HAN 8/31/2021 0 pCi/Kg 131019003 8/31/2021 Vogtle Charcoal Ct I-131 HAN 8/31/2021 0 pCi/m3 131015007 8/31/2021 Vogtle Charcoal Ct I-131 RRD 8/31/2021 0 pCi/m3 131015006 8/31/2021 Vogtle Charcoal Ct I-131 SIM 8/31/2021 0 pCi/m3 131015003 8/31/2021 Vogtle Vegetation Cs-137 SIM 8/31/2021 0 pCi/Kg 131019002 8/31/2021 Vogtle Vegetation Cs-134 SIM 8/31/2021 0 pCi/Kg 131019002 8/31/2021 Vogtle Vegetation I-131 SIM 8/31/2021 0 pCi/Kg 131019002 8/31/2021 Vogtle Vegetation K-40 SIM 8/31/2021 3588.9 pCi/Kg 131019002 8/31/2021 Vogtle Vegetation Be-7 SIM 8/31/2021 984.47 pCi/Kg 131019002 8/31/2021 Vogtle Charcoal Ct I-131 MET 8/31/2021 0 pCi/m3 131015005 8/31/2021 Vogtle Charcoal Ct I-131 DIS 8/31/2021 0 pCi/m3 131015004 8/31/2021 Vogtle DW - Gamma Cs-134 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma Cs-137 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma Ba-140 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma La-140 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma Be-7 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma K-40 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma Fe-59 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma Co-58 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma Co-60 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma Zn-65 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma Zr-95 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma I-131 RAUC 9/7/2021 0 pCi/L 131129001 9/7/2021 Vogtle DW - Gamma Cs-134 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma Cs-137 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma Ba-140 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma La-140 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma K-40 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma Be-7 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma Fe-59 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma Co-58 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma Co-60 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma Zn-65 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma Zr-95 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma I-131 FAUC 9/7/2021 0 pCi/L 131129002 9/7/2021 Vogtle DW - Gamma Fe-59 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021

Vogtle DW - Gamma Co-58 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma Co-60 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma Zn-65 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma Zr-95 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma I-131 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma Cs-134 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma Cs-137 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma Ba-140 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma La-140 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma Be-7 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma K-40 FPUR 9/7/2021 0 pCi/L 131129006 9/7/2021 Vogtle DW - Gamma Fe-59 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma Co-58 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma Co-60 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma Zn-65 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma Zr-95 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma I-131 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma Cs-134 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma Cs-137 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma Ba-140 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma La-140 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma Be-7 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma K-40 RPUR 9/7/2021 0 pCi/L 131129005 9/7/2021 Vogtle DW - Gamma Cs-137 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma Ba-140 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma La-140 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma Be-7 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma K-40 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma Fe-59 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma Co-58 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma Co-60 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma Zn-65 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma Zr-95 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma I-131 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma Cs-134 FPOR 9/7/2021 0 pCi/L 131129004 9/7/2021 Vogtle DW - Gamma Co-60 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma Zn-65 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma Zr-95 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma I-131 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma Cs-134 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma Cs-137 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma Ba-140 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma La-140 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma Be-7 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma K-40 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma Fe-59 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle DW - Gamma Co-58 RPOR 9/7/2021 0 pCi/L 131129003 9/7/2021 Vogtle Charcoal Ct I-131 GIR 9/7/2021 0 pCi/m3 131126002 9/7/2021 Vogtle Charcoal Ct I-131 WAY 9/7/2021 0 pCi/m3 131126001 9/7/2021 Vogtle Charcoal Ct I-131 HAN 9/7/2021 0 pCi/m3 131126007 9/7/2021 Vogtle Charcoal Ct I-131 RRD 9/7/2021 0 pCi/m3 131126006 9/7/2021 Vogtle Charcoal Ct I-131 SIM 9/7/2021 0 pCi/m3 131126003 9/7/2021 Vogtle Charcoal Ct I-131 MET 9/7/2021 0 pCi/m3 131126005 9/7/2021 Vogtle Charcoal Ct I-131 DIS 9/7/2021 0 pCi/m3 131126004 9/7/2021 Vogtle Charcoal Ct I-131 GIR 9/14/2021 0 pCi/m3 131255002 9/14/2021 Vogtle Milk Gamma Cs-134 GIR 9/14/2021 0 pCi/L 131225002 9/14/2021 Vogtle Milk Gamma Ba-140 GIR 9/14/2021 0 pCi/L 131225002 9/14/2021 Vogtle Milk Gamma La-140 GIR 9/14/2021 0 pCi/L 131225002 9/14/2021 Vogtle Milk Gamma Be-7 GIR 9/14/2021 0 pCi/L 131225002 9/14/2021 Vogtle Milk Gamma K-40 GIR 9/14/2021 1335.1 pCi/L 131225002 9/14/2021 Vogtle Milk Gamma I-131 GIR 9/14/2021 0 pCi/L 131225002 9/14/2021 Vogtle Milk Gamma Cs-137 GIR 9/14/2021 0 pCi/L 131225002 9/14/2021 Vogtle Charcoal Ct I-131 WAY 9/14/2021 0 pCi/m3 131255001 9/14/2021 Vogtle Milk Gamma Cs-134 Milky Way 9/14/2021 0 pCi/L 131225001 9/14/2021 Vogtle Milk Gamma Cs-137 Milky Way 9/14/2021 0 pCi/L 131225001 9/14/2021 Vogtle Milk Gamma Ba-140 Milky Way 9/14/2021 0 pCi/L 131225001 9/14/2021 Vogtle Milk Gamma La-140 Milky Way 9/14/2021 0 pCi/L 131225001 9/14/2021 Vogtle Milk Gamma Be-7 Milky Way 9/14/2021 0 pCi/L 131225001 9/14/2021 Vogtle Milk Gamma K-40 Milky Way 9/14/2021 1248.2 pCi/L 131225001 9/14/2021 Vogtle Milk Gamma I-131 Milky Way 9/14/2021 0 pCi/L 131225001 9/14/2021 Vogtle DW - Beta Gross Alpha RAUC 1/5/2021 0 pCi/L 127928001 1/5/2021 Vogtle DW - Beta Gross Beta RAUC 1/5/2021 2.181 pCi/L 127928001 1/5/2021 Vogtle Water H-3 Tritium RAUC 1/5/2021 182 pCi/L 128365001 1/5/2021 Vogtle Charcoal Ct I-131 HAN 9/14/2021 0 pCi/m3 131255007 9/14/2021 Vogtle DW - Beta Gross Alpha RAUC 2/2/2021 0 pCi/L 128358001 2/2/2021 Vogtle DW - Beta Gross Beta RAUC 2/2/2021 1.86 pCi/L 128358001 2/2/2021 Vogtle Charcoal Ct I-131 RRD 9/14/2021 0 pCi/m3 131255006 9/14/2021 Vogtle Charcoal Ct I-131 SIM 9/14/2021 0 pCi/m3 131255003 9/14/2021 Vogtle Charcoal Ct I-131 MET 9/14/2021 0 pCi/m3 131255005 9/14/2021 Vogtle Charcoal Ct I-131 DIS 9/14/2021 0 pCi/m3 131255004 9/14/2021 Vogtle River Water Co-58 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water Fe-59 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water Co-60 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water Zn-65 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water Zr-95 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021

Vogtle River Water I-131 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water Cs-134 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water Cs-137 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water Ba-140 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water La-140 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water Be-7 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water K-40 149.5 9/14/2021 0 pCi/L 131226003 9/14/2021 Vogtle River Water Fe-59 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water Co-58 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water Co-60 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water Zn-65 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water Zr-95 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water La-140 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water Be-7 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water K-40 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water I-131 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle DW - Beta Gross Beta RAUC 3/2/2021 2.774 pCi/L 128780001 3/2/2021 Vogtle DW - Beta Gross Alpha RAUC 3/2/2021 0 pCi/L 128780001 3/2/2021 Vogtle DW - Beta Gross Beta RAUC 4/6/2021 1.047 pCi/L 129105001 4/6/2021 Vogtle DW - Beta Gross Alpha RAUC 4/6/2021 0 pCi/L 129105001 4/6/2021 Vogtle River Water Cs-134 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water Cs-137 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water Ba-140 150.4 9/14/2021 0 pCi/L 131226002 9/14/2021 Vogtle River Water Co-60 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water Zn-65 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water Be-7 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water K-40 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water Fe-59 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water Zr-95 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water I-131 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water Cs-134 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle Water H-3 Tritium RAUC 4/6/2021 158 pCi/L 129220001 4/6/2021 Vogtle River Water Cs-137 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water Ba-140 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water La-140 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle River Water Co-58 151.2 9/14/2021 0 pCi/L 131226001 9/14/2021 Vogtle Charcoal Ct I-131 GIR 9/21/2021 0 pCi/m3 131333002 9/21/2021 Vogtle Charcoal Ct I-131 WAY 9/21/2021 0 pCi/m3 131333001 9/21/2021 Vogtle Charcoal Ct I-131 HAN 9/21/2021 0 pCi/m3 131333007 9/21/2021 Vogtle Charcoal Ct I-131 RRD 9/21/2021 0 pCi/m3 131333006 9/21/2021 Vogtle Charcoal Ct I-131 SIM 9/21/2021 0 pCi/m3 131333003 9/21/2021 Vogtle Charcoal Ct I-131 MET 9/21/2021 0 pCi/m3 131333005 9/21/2021 Vogtle Charcoal Ct I-131 DIS 9/21/2021 0 pCi/m3 131333004 9/21/2021 Vogtle Milk Gamma Cs-137 Milky Way 9/28/2021 0 pCi/L 131466001 9/28/2021 Vogtle Milk Gamma Ba-140 Milky Way 9/28/2021 0 pCi/L 131466001 9/28/2021 Vogtle Milk Gamma La-140 Milky Way 9/28/2021 0 pCi/L 131466001 9/28/2021 Vogtle DW - Beta Gross Alpha RAUC 5/4/2021 0 pCi/L 129363001 5/4/2021 Vogtle DW - Beta Gross Beta RAUC 5/4/2021 2.561 pCi/L 129363001 5/4/2021 Vogtle Milk Gamma Be-7 Milky Way 9/28/2021 0 pCi/L 131466001 9/28/2021 Vogtle Milk Gamma K-40 Milky Way 9/28/2021 1265.1 pCi/L 131466001 9/28/2021 Vogtle Milk Gamma Cs-134 Milky Way 9/28/2021 0 pCi/L 131466001 9/28/2021 Vogtle Milk Gamma I-131 Milky Way 9/28/2021 0 pCi/L 131466001 9/28/2021 Vogtle Milk Gamma K-40 GIR 9/28/2021 1334 pCi/L 131466002 9/28/2021 Vogtle Milk Gamma Be-7 GIR 9/28/2021 0 pCi/L 131466002 9/28/2021 Vogtle Milk Gamma La-140 GIR 9/28/2021 0 pCi/L 131466002 9/28/2021 Vogtle Milk Gamma Ba-140 GIR 9/28/2021 0 pCi/L 131466002 9/28/2021 Vogtle Milk Gamma Cs-134 GIR 9/28/2021 0 pCi/L 131466002 9/28/2021 Vogtle Milk Gamma I-131 GIR 9/28/2021 0 pCi/L 131466002 9/28/2021 Vogtle DW - Beta Gross Alpha RAUC 6/1/2021 0 pCi/L 129655001 6/1/2021 Vogtle DW - Beta Gross Beta RAUC 6/1/2021 2.591 pCi/L 129655001 6/1/2021 Vogtle Milk Gamma Cs-137 GIR 9/28/2021 0 pCi/L 131466002 9/28/2021 Vogtle Air Qtr Comp I-131 GIR 9/28/2021 0 pCi/m3 131790002 9/28/2021 Vogtle Charcoal Ct I-131 GIR 9/28/2021 0 pCi/m3 131423002 9/28/2021 Vogtle Air Qtr Comp Be-7 GIR 9/28/2021 0.09732 pCi/m3 131790002 9/28/2021 Vogtle Air Qtr Comp Cs-137 GIR 9/28/2021 0 pCi/m3 131790002 9/28/2021 Vogtle Air Qtr Comp Cs-134 GIR 9/28/2021 0 pCi/m3 131790002 9/28/2021 Vogtle Air Qtr Comp Be-7 WAY 9/28/2021 0.09105 pCi/m3 131790001 9/28/2021 Vogtle Air Qtr Comp Cs-137 WAY 9/28/2021 0 pCi/m3 131790001 9/28/2021 Vogtle Air Qtr Comp Cs-134 WAY 9/28/2021 0 pCi/m3 131790001 9/28/2021 Vogtle Air Qtr Comp I-131 WAY 9/28/2021 0 pCi/m3 131790001 9/28/2021 Vogtle Charcoal Ct I-131 WAY 9/28/2021 0 pCi/m3 131423001 9/28/2021 Vogtle Vegetation Cs-134 WAY 9/28/2021 0 pCi/Kg 131424001 9/28/2021 Vogtle Vegetation Cs-137 WAY 9/28/2021 0 pCi/Kg 131424001 9/28/2021 Vogtle Vegetation Be-7 WAY 9/28/2021 2946 pCi/Kg 131424001 9/28/2021 Vogtle Vegetation K-40 WAY 9/28/2021 3408.1 pCi/Kg 131424001 9/28/2021 Vogtle Vegetation I-131 WAY 9/28/2021 0 pCi/Kg 131424001 9/28/2021 Vogtle Charcoal Ct I-131 HAN 9/28/2021 0 pCi/m3 131423007 9/28/2021 Vogtle Air Qtr Comp Be-7 HAN 9/28/2021 0.05755 pCi/m3 131790007 9/28/2021 Vogtle Water H-3 Tritium RAUC 7/6/2021 90.6 pCi/L 130438001 7/6/2021 Vogtle DW - Beta Gross Alpha RAUC 7/6/2021 0 pCi/L 130196001 7/6/2021 Vogtle DW - Beta Gross Beta RAUC 7/6/2021 3.145 pCi/L 130196001 7/6/2021 Vogtle Air Qtr Comp Cs-137 HAN 9/28/2021 0 pCi/m3 131790007 9/28/2021 Vogtle Air Qtr Comp Cs-134 HAN 9/28/2021 0 pCi/m3 131790007 9/28/2021 Vogtle Air Qtr Comp I-131 HAN 9/28/2021 0 pCi/m3 131790007 9/28/2021 Vogtle Vegetation I-131 HAN 9/28/2021 0 pCi/Kg 131424003 9/28/2021

Vogtle Vegetation Cs-134 HAN 9/28/2021 0 pCi/Kg 131424003 9/28/2021 Vogtle Vegetation Be-7 HAN 9/28/2021 660.9 pCi/Kg 131424003 9/28/2021 Vogtle Vegetation K-40 HAN 9/28/2021 4728.1 pCi/Kg 131424003 9/28/2021 Vogtle Vegetation Cs-137 HAN 9/28/2021 0 pCi/Kg 131424003 9/28/2021 Vogtle Charcoal Ct I-131 RRD 9/28/2021 0 pCi/m3 131423006 9/28/2021 Vogtle Air Qtr Comp Be-7 RRD 9/28/2021 0.07995 pCi/m3 131790006 9/28/2021 Vogtle Air Qtr Comp Cs-137 RRD 9/28/2021 0 pCi/m3 131790006 9/28/2021 Vogtle Air Qtr Comp Cs-134 RRD 9/28/2021 0 pCi/m3 131790006 9/28/2021 Vogtle Air Qtr Comp I-131 RRD 9/28/2021 0 pCi/m3 131790006 9/28/2021 Vogtle Charcoal Ct I-131 SIM 9/28/2021 0 pCi/m3 131423003 9/28/2021 Vogtle DW - Beta Gross Alpha RAUC 8/3/2021 0 pCi/L 130593001 8/3/2021 Vogtle DW - Beta Gross Beta RAUC 8/3/2021 5.699 pCi/L 130593001 8/3/2021 Vogtle Air Qtr Comp Be-7 SIM 9/28/2021 0.05786 pCi/m3 131790003 9/28/2021 Vogtle DW - Beta Gross Beta RAUC 9/7/2021 1.951 pCi/L 131123001 9/7/2021 Vogtle Air Qtr Comp Cs-137 SIM 9/28/2021 0 pCi/m3 131790003 9/28/2021 Vogtle Air Qtr Comp Cs-134 SIM 9/28/2021 0 pCi/m3 131790003 9/28/2021 Vogtle Air Qtr Comp I-131 SIM 9/28/2021 0 pCi/m3 131790003 9/28/2021 Vogtle Vegetation Cs-137 SIM 9/28/2021 0 pCi/Kg 131424002 9/28/2021 Vogtle Vegetation I-131 SIM 9/28/2021 0 pCi/Kg 131424002 9/28/2021 Vogtle Vegetation Cs-134 SIM 9/28/2021 0 pCi/Kg 131424002 9/28/2021 Vogtle Vegetation Be-7 SIM 9/28/2021 1192.4 pCi/Kg 131424002 9/28/2021 Vogtle Vegetation K-40 SIM 9/28/2021 4910.3 pCi/Kg 131424002 9/28/2021 Vogtle Charcoal Ct I-131 MET 9/28/2021 0 pCi/m3 131423005 9/28/2021 Vogtle Air Qtr Comp Be-7 MET 9/28/2021 0.08555 pCi/m3 131790005 9/28/2021 Vogtle Air Qtr Comp Cs-137 MET 9/28/2021 0 pCi/m3 131790005 9/28/2021 Vogtle Air Qtr Comp Cs-134 MET 9/28/2021 0 pCi/m3 131790005 9/28/2021 Vogtle Air Qtr Comp I-131 MET 9/28/2021 0 pCi/m3 131790005 9/28/2021 Vogtle DW - Beta Gross Alpha RAUC 9/7/2021 0 pCi/L 131123001 9/7/2021 Vogtle Air Qtr Comp I-131 DIS 9/28/2021 0 pCi/m3 131790004 9/28/2021 Vogtle Air Qtr Comp Cs-134 DIS 9/28/2021 0 pCi/m3 131790004 9/28/2021 Vogtle Air Qtr Comp Be-7 DIS 9/28/2021 0.08937 pCi/m3 131790004 9/28/2021 Vogtle Charcoal Ct I-131 DIS 9/28/2021 0 pCi/m3 131423004 9/28/2021 Vogtle Air Qtr Comp Cs-137 DIS 9/28/2021 0 pCi/m3 131790004 9/28/2021 Vogtle DW - Gamma I-131 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma Cs-134 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma Cs-137 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma Ba-140 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma La-140 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma Be-7 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Beta Gross Alpha RAUC 10/5/2021 0 pCi/L 131519001 10/5/2021 Vogtle DW - Beta Gross Beta RAUC 10/5/2021 4.744 pCi/L 131519001 10/5/2021 Vogtle DW - Gamma K-40 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle Water H-3 Tritium RAUC 10/5/2021 279 pCi/L 131707001 10/5/2021 Vogtle DW - Beta Gross Beta RAUC 11/2/2021 1.877 pCi/L 131850001 11/2/2021 Vogtle DW - Beta Gross Alpha RAUC 11/2/2021 0 pCi/L 131850001 11/2/2021 Vogtle DW - Gamma Fe-59 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma Co-58 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma Co-60 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma Zn-65 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma Zr-95 FPUR 10/5/2021 0 pCi/L 131520006 10/5/2021 Vogtle DW - Gamma Zn-65 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma Zr-95 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma I-131 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma Cs-134 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma Cs-137 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma Ba-140 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma La-140 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma Be-7 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma K-40 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma Fe-59 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma Co-58 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma Co-60 RPUR 10/5/2021 0 pCi/L 131520005 10/5/2021 Vogtle DW - Gamma Co-58 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma Co-60 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma Zn-65 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma Zr-95 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Beta Gross Alpha RAUC 12/8/2021 0 pCi/L 132149001 12/8/2021 Vogtle DW - Beta Gross Beta RAUC 12/8/2021 4.294 pCi/L 132149001 12/8/2021 Vogtle DW - Gamma I-131 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma Cs-134 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma Cs-137 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma Ba-140 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma La-140 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma Be-7 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma K-40 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma Fe-59 FPOR 10/5/2021 0 pCi/L 131520004 10/5/2021 Vogtle DW - Gamma Fe-59 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma Co-58 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma Co-60 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma Zn-65 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma Zr-95 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma I-131 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma Cs-134 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Beta Gross Alpha RPOR 1/5/2021 0 pCi/L 127928003 1/5/2021 Vogtle DW - Beta Gross Beta RPOR 1/5/2021 1.755 pCi/L 127928003 1/5/2021

Vogtle Water H-3 Tritium RPOR 1/5/2021 197 pCi/L 128365003 1/5/2021 Vogtle DW - Beta Gross Beta RPOR 2/2/2021 2.318 pCi/L 128358003 2/2/2021 Vogtle DW - Gamma Cs-137 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma Ba-140 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma La-140 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma Be-7 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma K-40 RPOR 10/5/2021 0 pCi/L 131520003 10/5/2021 Vogtle DW - Gamma Cs-137 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma Ba-140 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma La-140 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma Be-7 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma K-40 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma Fe-59 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma Co-58 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma Co-60 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Beta Gross Alpha RPOR 2/2/2021 0 pCi/L 128358003 2/2/2021 Vogtle DW - Gamma Zn-65 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma Zr-95 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma I-131 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma Cs-134 RAUC 10/5/2021 0 pCi/L 131520001 10/5/2021 Vogtle DW - Gamma K-40 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Gamma Fe-59 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Gamma Co-58 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Gamma Co-60 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Gamma Zn-65 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Gamma Zr-95 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Beta Gross Alpha RPOR 3/1/2021 0 pCi/L 128780003 3/1/2021 Vogtle DW - Beta Gross Beta RPOR 3/1/2021 3.212 pCi/L 128780003 3/1/2021 Vogtle DW - Gamma I-131 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle Water H-3 Tritium RPOR 4/6/2021 167 pCi/L 129220003 4/6/2021 Vogtle DW - Beta Gross Alpha RPOR 4/6/2021 0 pCi/L 129105003 4/6/2021 Vogtle DW - Beta Gross Beta RPOR 4/6/2021 3.527 pCi/L 129105003 4/6/2021 Vogtle DW - Gamma Cs-134 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Gamma Cs-137 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Gamma Ba-140 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Gamma La-140 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle DW - Gamma Be-7 FAUC 10/5/2021 0 pCi/L 131520002 10/5/2021 Vogtle Charcoal Ct I-131 GIR 10/5/2021 0 pCi/m3 131550002 10/5/2021 Vogtle Charcoal Ct I-131 WAY 10/5/2021 0 pCi/m3 131550001 10/5/2021 Vogtle Charcoal Ct I-131 HAN 10/5/2021 0 pCi/m3 131550007 10/5/2021 Vogtle Charcoal Ct I-131 RRD 10/5/2021 0 pCi/m3 131550006 10/5/2021 Vogtle Charcoal Ct I-131 SIM 10/5/2021 0 pCi/m3 131550003 10/5/2021 Vogtle Charcoal Ct I-131 MET 10/5/2021 0 pCi/m3 131550005 10/5/2021 Vogtle Charcoal Ct I-131 DIS 10/5/2021 0 pCi/m3 131550004 10/5/2021 Vogtle Charcoal Ct I-131 GIR 10/12/2021 0 pCi/m3 131617002 10/12/2021 Vogtle Milk Gamma K-40 GIR 10/12/2021 1328.6 pCi/L 131614002 10/12/2021 Vogtle Milk Gamma Be-7 GIR 10/12/2021 0 pCi/L 131614002 10/12/2021 Vogtle Milk Gamma La-140 GIR 10/12/2021 0 pCi/L 131614002 10/12/2021 Vogtle Milk Gamma Ba-140 GIR 10/12/2021 0 pCi/L 131614002 10/12/2021 Vogtle Milk Gamma Cs-134 GIR 10/12/2021 0 pCi/L 131614002 10/12/2021 Vogtle DW - Beta Gross Alpha RPOR 5/4/2021 0 pCi/L 129363003 5/4/2021 Vogtle DW - Beta Gross Beta RPOR 5/4/2021 0.7595 pCi/L 129363003 5/4/2021 Vogtle Milk Gamma I-131 GIR 10/12/2021 0 pCi/L 131614002 10/12/2021 Vogtle Milk Gamma Cs-137 GIR 10/12/2021 0 pCi/L 131614002 10/12/2021 Vogtle Charcoal Ct I-131 WAY 10/12/2021 0 pCi/m3 131617001 10/12/2021 Vogtle Milk Gamma I-131 Milky Way 10/12/2021 0 pCi/L 131614001 10/12/2021 Vogtle Milk Gamma K-40 Milky Way 10/12/2021 1303 pCi/L 131614001 10/12/2021 Vogtle Milk Gamma Be-7 Milky Way 10/12/2021 0 pCi/L 131614001 10/12/2021 Vogtle Milk Gamma La-140 Milky Way 10/12/2021 0 pCi/L 131614001 10/12/2021 Vogtle Milk Gamma Ba-140 Milky Way 10/12/2021 0 pCi/L 131614001 10/12/2021 Vogtle Milk Gamma Cs-137 Milky Way 10/12/2021 0 pCi/L 131614001 10/12/2021 Vogtle Milk Gamma Cs-134 Milky Way 10/12/2021 0 pCi/L 131614001 10/12/2021 Vogtle Charcoal Ct I-131 HAN 10/12/2021 0 pCi/m3 131617007 10/12/2021 Vogtle Charcoal Ct I-131 RRD 10/12/2021 0 pCi/m3 131617006 10/12/2021 Vogtle Charcoal Ct I-131 SIM 10/12/2021 0 pCi/m3 131617003 10/12/2021 Vogtle Charcoal Ct I-131 MET 10/12/2021 0 pCi/m3 131617005 10/12/2021 Vogtle Charcoal Ct I-131 DIS 10/12/2021 0 pCi/m3 131617004 10/12/2021 Vogtle Charcoal Ct I-131 GIR 10/19/2021 0 pCi/m3 131696002 10/19/2021 Vogtle Charcoal Ct I-131 WAY 10/19/2021 0 pCi/m3 131696001 10/19/2021 Vogtle Charcoal Ct I-131 HAN 10/19/2021 0 pCi/m3 131696007 10/19/2021 Vogtle Charcoal Ct I-131 RRD 10/19/2021 0 pCi/m3 131696006 10/19/2021 Vogtle Charcoal Ct I-131 SIM 10/19/2021 0 pCi/m3 131696003 10/19/2021 Vogtle Charcoal Ct I-131 MET 10/19/2021 0 pCi/m3 131696005 10/19/2021 Vogtle Charcoal Ct I-131 DIS 10/19/2021 0 pCi/m3 131696004 10/19/2021 Vogtle River Water Cs-134 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water Cs-137 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle DW - Beta Gross Alpha RPOR 6/1/2021 0 pCi/L 129655003 6/1/2021 Vogtle DW - Beta Gross Beta RPOR 6/1/2021 7.271 pCi/L 129655003 6/1/2021 Vogtle DW - Beta Gross Beta RPOR 7/5/2021 2.38 pCi/L 130196003 7/5/2021 Vogtle Water H-3 Tritium RPOR 7/5/2021 262 pCi/L 130438003 7/5/2021 Vogtle River Water Ba-140 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water La-140 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water Be-7 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water K-40 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water Fe-59 1495 10/19/2021 0 pCi/L 131693003 10/19/2021

Vogtle River Water Co-58 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water Co-60 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water Zn-65 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water Zr-95 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water I-131 1495 10/19/2021 0 pCi/L 131693003 10/19/2021 Vogtle River Water K-40 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle DW - Beta Gross Alpha RPOR 7/5/2021 0 pCi/L 130196003 7/5/2021 Vogtle River Water Fe-59 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water Co-58 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water Co-60 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water Zn-65 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water Zr-95 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water I-131 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water Cs-134 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water Cs-137 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water Ba-140 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water La-140 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle River Water Be-7 1504 10/19/2021 0 pCi/L 131693002 10/19/2021 Vogtle DW - Beta Gross Alpha RPOR 8/3/2021 0 pCi/L 130593003 8/3/2021 Vogtle DW - Beta Gross Beta RPOR 8/3/2021 4.676 pCi/L 130593003 8/3/2021 Vogtle River Water Co-60 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water Zn-65 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water Zr-95 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water I-131 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water Cs-134 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water Cs-137 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water Ba-140 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water La-140 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water Be-7 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water K-40 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water Fe-59 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle River Water Co-58 1512 10/19/2021 0 pCi/L 131693001 10/19/2021 Vogtle Charcoal Ct I-131 GIR 10/24/2021 0 pCi/m3 131757002 10/24/2021 Vogtle Charcoal Ct I-131 WAY 10/24/2021 0 pCi/m3 131757001 10/24/2021 Vogtle DW - Beta Gross Alpha RPOR 9/7/2021 0 pCi/L 131123003 9/7/2021 Vogtle DW - Beta Gross Beta RPOR 9/7/2021 4.254 pCi/L 131123003 9/7/2021 Vogtle DW - Beta Gross Beta RPOR 10/5/2021 5.09 pCi/L 131519003 10/5/2021 Vogtle DW - Beta Gross Alpha RPOR 10/5/2021 0 pCi/L 131519003 10/5/2021 Vogtle Vegetation I-131 WAY 10/24/2021 0 pCi/Kg 131739001 10/24/2021 Vogtle Vegetation Cs-134 WAY 10/24/2021 0 pCi/Kg 131739001 10/24/2021 Vogtle Vegetation Be-7 WAY 10/24/2021 1539.6 pCi/Kg 131739001 10/24/2021 Vogtle Vegetation Cs-137 WAY 10/24/2021 0 pCi/Kg 131739001 10/24/2021 Vogtle Vegetation K-40 WAY 10/24/2021 5519.5 pCi/Kg 131739001 10/24/2021 Vogtle Vegetation K-40 HAN 10/24/2021 6162.4 pCi/Kg 131739003 10/24/2021 Vogtle Vegetation Be-7 HAN 10/24/2021 1587 pCi/Kg 131739003 10/24/2021 Vogtle Vegetation Cs-134 HAN 10/24/2021 0 pCi/Kg 131739003 10/24/2021 Vogtle Vegetation I-131 HAN 10/24/2021 0 pCi/Kg 131739003 10/24/2021 Vogtle Vegetation Cs-137 HAN 10/24/2021 0 pCi/Kg 131739003 10/24/2021 Vogtle Charcoal Ct I-131 HAN 10/24/2021 0 pCi/m3 131757007 10/24/2021 Vogtle Charcoal Ct I-131 RRD 10/24/2021 0 pCi/m3 131757006 10/24/2021 Vogtle Charcoal Ct I-131 SIM 10/24/2021 0 pCi/m3 131757003 10/24/2021 Vogtle Vegetation Cs-137 SIM 10/24/2021 0 pCi/Kg 131739002 10/24/2021 Vogtle Water H-3 Tritium RPOR 10/5/2021 405 pCi/L 131707003 10/5/2021 Vogtle Vegetation Cs-134 SIM 10/24/2021 0 pCi/Kg 131739002 10/24/2021 Vogtle Vegetation I-131 SIM 10/24/2021 0 pCi/Kg 131739002 10/24/2021 Vogtle Vegetation Be-7 SIM 10/24/2021 1284.9 pCi/Kg 131739002 10/24/2021 Vogtle Vegetation K-40 SIM 10/24/2021 6146.1 pCi/Kg 131739002 10/24/2021 Vogtle Charcoal Ct I-131 DIS 10/24/2021 0 pCi/m3 131757004 10/24/2021 Vogtle Charcoal Ct I-131 MET 10/24/2021 0 pCi/m3 131757005 10/24/2021 Vogtle Milk Gamma Cs-137 Milky Way 10/25/2021 0 pCi/L 131876001 10/25/2021 Vogtle Milk Gamma Cs-134 Milky Way 10/25/2021 0 pCi/L 131876001 10/25/2021 Vogtle Milk Gamma I-131 Milky Way 10/25/2021 0 pCi/L 131876001 10/25/2021 Vogtle Milk Gamma K-40 Milky Way 10/25/2021 1476.2 pCi/L 131876001 10/25/2021 Vogtle Milk Gamma Be-7 Milky Way 10/25/2021 0 pCi/L 131876001 10/25/2021 Vogtle Milk Gamma La-140 Milky Way 10/25/2021 0 pCi/L 131876001 10/25/2021 Vogtle Milk Gamma Ba-140 Milky Way 10/25/2021 0 pCi/L 131876001 10/25/2021 Vogtle Milk Gamma Ba-140 GIR 10/25/2021 0 pCi/L 131876002 10/25/2021 Vogtle DW - Beta Gross Alpha RPOR 11/2/2021 0 pCi/L 131850003 11/2/2021 Vogtle DW - Beta Gross Beta RPOR 11/2/2021 13.89 pCi/L 131850003 11/2/2021 Vogtle DW - Beta Gross Alpha RPOR 12/8/2021 0 pCi/L 132149003 12/8/2021 Vogtle DW - Beta Gross Beta RPOR 12/8/2021 3.014 pCi/L 132149003 12/8/2021 Vogtle Milk Gamma La-140 GIR 10/25/2021 0 pCi/L 131876002 10/25/2021 Vogtle Milk Gamma Be-7 GIR 10/25/2021 0 pCi/L 131876002 10/25/2021 Vogtle Milk Gamma K-40 GIR 10/25/2021 1335 pCi/L 131876002 10/25/2021 Vogtle Milk Gamma I-131 GIR 10/25/2021 0 pCi/L 131876002 10/25/2021 Vogtle Milk Gamma Cs-134 GIR 10/25/2021 0 pCi/L 131876002 10/25/2021 Vogtle Milk Gamma Cs-137 GIR 10/25/2021 0 pCi/L 131876002 10/25/2021 Vogtle Fish K-40 1535 Bass 10/26/2021 3958.8 pCi/Kg 131797001 10/26/2021 Vogtle Fish K-40 1481 Sucker 10/26/2021 3750.5 pCi/Kg 131797006 10/26/2021 Vogtle Fish K-40 1535 Sucker 10/26/2021 3502.1 pCi/Kg 131797003 10/26/2021 Vogtle Fish K-40 1535 Carp 10/26/2021 3473.7 pCi/Kg 131797002 10/26/2021 Vogtle Fish K-40 1481 Bass 10/26/2021 3422.2 pCi/Kg 131797004 10/26/2021 Vogtle Fish K-40 1481 Carp 10/26/2021 2815.4 pCi/Kg 131797005 10/26/2021 Vogtle Fish Cs-137 1481 Bass 10/26/2021 64.424 pCi/Kg 131797004 10/26/2021 Vogtle Fish Cs-137 1481 Sucker 10/26/2021 21.308 pCi/Kg 131797006 10/26/2021

Vogtle Fish Zn-65 1481 Bass 10/26/2021 0 pCi/Kg 131797004 10/26/2021 Vogtle Fish Be-7 1481 Bass 10/26/2021 0 pCi/Kg 131797004 10/26/2021 Vogtle Fish Be-7 1481 Carp 10/26/2021 0 pCi/Kg 131797005 10/26/2021 Vogtle Fish Fe-59 1481 Bass 10/26/2021 0 pCi/Kg 131797004 10/26/2021 Vogtle Fish Be-7 1481 Sucker 10/26/2021 0 pCi/Kg 131797006 10/26/2021 Vogtle Fish Cs-134 1481 Bass 10/26/2021 0 pCi/Kg 131797004 10/26/2021 Vogtle Fish Zn-65 1481 Carp 10/26/2021 0 pCi/Kg 131797005 10/26/2021 Vogtle Fish Cs-134 1481 Carp 10/26/2021 0 pCi/Kg 131797005 10/26/2021 Vogtle Fish Fe-59 1481 Carp 10/26/2021 0 pCi/Kg 131797005 10/26/2021 Vogtle Fish Be-7 1535 Bass 10/26/2021 0 pCi/Kg 131797001 10/26/2021 Vogtle Fish Zn-65 1481 Sucker 10/26/2021 0 pCi/Kg 131797006 10/26/2021 Vogtle Fish Cs-134 1481 Sucker 10/26/2021 0 pCi/Kg 131797006 10/26/2021 Vogtle Fish Be-7 1535 Carp 10/26/2021 0 pCi/Kg 131797002 10/26/2021 Vogtle DW - Beta Gross Alpha RPUR 1/5/2021 0 pCi/L 127928005 1/5/2021 Vogtle DW - Beta Gross Beta RPUR 1/5/2021 1.166 pCi/L 127928005 1/5/2021 Vogtle Water H-3 Tritium RPUR 1/5/2021 185 pCi/L 128365005 1/5/2021 Vogtle Fish Fe-59 1481 Sucker 10/26/2021 0 pCi/Kg 131797006 10/26/2021 Vogtle DW - Beta Gross Alpha RPUR 2/2/2021 0 pCi/L 128358005 2/2/2021 Vogtle DW - Beta Gross Beta RPUR 2/2/2021 2.273 pCi/L 128358005 2/2/2021 Vogtle Fish Be-7 1535 Sucker 10/26/2021 0 pCi/Kg 131797003 10/26/2021 Vogtle Fish Co-58 1481 Bass 10/26/2021 0 pCi/Kg 131797004 10/26/2021 Vogtle Fish Co-58 1481 Carp 10/26/2021 0 pCi/Kg 131797005 10/26/2021 Vogtle Fish Co-58 1481 Sucker 10/26/2021 0 pCi/Kg 131797006 10/26/2021 Vogtle Fish Co-58 1535 Bass 10/26/2021 0 pCi/Kg 131797001 10/26/2021 Vogtle Fish Co-58 1535 Carp 10/26/2021 0 pCi/Kg 131797002 10/26/2021 Vogtle Fish Co-58 1535 Sucker 10/26/2021 0 pCi/Kg 131797003 10/26/2021 Vogtle Fish Co-60 1481 Bass 10/26/2021 0 pCi/Kg 131797004 10/26/2021 Vogtle Fish Co-60 1481 Carp 10/26/2021 0 pCi/Kg 131797005 10/26/2021 Vogtle Fish Co-60 1481 Sucker 10/26/2021 0 pCi/Kg 131797006 10/26/2021 Vogtle Fish Fe-59 1535 Bass 10/26/2021 0 pCi/Kg 131797001 10/26/2021 Vogtle Fish Co-60 1535 Bass 10/26/2021 0 pCi/Kg 131797001 10/26/2021 Vogtle Fish Co-60 1535 Carp 10/26/2021 0 pCi/Kg 131797002 10/26/2021 Vogtle Fish Zn-65 1535 Bass 10/26/2021 0 pCi/Kg 131797001 10/26/2021 Vogtle Fish Cs-134 1535 Bass 10/26/2021 0 pCi/Kg 131797001 10/26/2021 Vogtle Fish Co-60 1535 Sucker 10/26/2021 0 pCi/Kg 131797003 10/26/2021 Vogtle Fish Fe-59 1535 Carp 10/26/2021 0 pCi/Kg 131797002 10/26/2021 Vogtle Fish Zn-65 1535 Carp 10/26/2021 0 pCi/Kg 131797002 10/26/2021 Vogtle Fish Cs-134 1535 Carp 10/26/2021 0 pCi/Kg 131797002 10/26/2021 Vogtle Fish Cs-134 1535 Sucker 10/26/2021 0 pCi/Kg 131797003 10/26/2021 Vogtle Fish Zn-65 1535 Sucker 10/26/2021 0 pCi/Kg 131797003 10/26/2021 Vogtle Fish Fe-59 1535 Sucker 10/26/2021 0 pCi/Kg 131797003 10/26/2021 Vogtle DW - Beta Gross Beta RPUR 3/1/2021 3.416 pCi/L 128780005 3/1/2021 Vogtle DW - Beta Gross Alpha RPUR 3/1/2021 0 pCi/L 128780005 3/1/2021 Vogtle DW - Beta Gross Alpha RPUR 4/6/2021 0 pCi/L 129105005 4/6/2021 Vogtle DW - Beta Gross Beta RPUR 4/6/2021 2.284 pCi/L 129105005 4/6/2021 Vogtle Fish Cs-137 1481 Carp 10/26/2021 0 pCi/Kg 131797005 10/26/2021 Vogtle Fish Cs-137 1535 Bass 10/26/2021 0 pCi/Kg 131797001 10/26/2021 Vogtle Fish Cs-137 1535 Carp 10/26/2021 0 pCi/Kg 131797002 10/26/2021 Vogtle Fish Cs-137 1535 Sucker 10/26/2021 0 pCi/Kg 131797003 10/26/2021 Vogtle Charcoal Ct I-131 DIS 11/1/2021 0 pCi/m3 131854004 11/1/2021 Vogtle Charcoal Ct I-131 SIM 11/1/2021 0 pCi/m3 131854003 11/1/2021 Vogtle Charcoal Ct I-131 MET 11/1/2021 0 pCi/m3 131854005 11/1/2021 Vogtle Charcoal Ct I-131 RRD 11/1/2021 0 pCi/m3 131854006 11/1/2021 Vogtle Charcoal Ct I-131 HAN 11/1/2021 0 pCi/m3 131854007 11/1/2021 Vogtle Charcoal Ct I-131 WAY 11/1/2021 0 pCi/m3 131854001 11/1/2021 Vogtle Charcoal Ct I-131 GIR 11/1/2021 0 pCi/m3 131854002 11/1/2021 Vogtle DW - Gamma I-131 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma Cs-134 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle Water H-3 Tritium RPUR 4/6/2021 269 pCi/L 129220005 4/6/2021 Vogtle DW - Gamma Cs-137 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma Ba-140 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma La-140 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma Be-7 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma K-40 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma Fe-59 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma Co-58 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma Co-60 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma Zn-65 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma Zr-95 RAUC 11/2/2021 0 pCi/L 131851001 11/2/2021 Vogtle DW - Gamma Ba-140 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Gamma La-140 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Beta Gross Alpha RPUR 5/4/2021 0 pCi/L 129363005 5/4/2021 Vogtle DW - Beta Gross Beta RPUR 5/4/2021 1.387 pCi/L 129363005 5/4/2021 Vogtle DW - Gamma Be-7 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Gamma K-40 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Gamma Fe-59 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Gamma Co-58 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Gamma Co-60 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Gamma Zn-65 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Gamma Zr-95 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Beta Gross Alpha RPUR 6/1/2021 0 pCi/L 129655005 6/1/2021 Vogtle DW - Beta Gross Beta RPUR 6/1/2021 2.94 pCi/L 129655005 6/1/2021 Vogtle DW - Gamma I-131 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Gamma Cs-134 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021 Vogtle DW - Gamma Cs-137 FAUC 11/2/2021 0 pCi/L 131851002 11/2/2021

Vogtle DW - Gamma Co-60 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma Zn-65 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma Zr-95 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma I-131 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma Cs-134 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma Cs-137 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma Ba-140 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle Water H-3 Tritium RPUR 7/5/2021 188 pCi/L 130438005 7/5/2021 Vogtle DW - Gamma La-140 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma Be-7 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma K-40 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma Fe-59 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma Co-58 FPUR 11/2/2021 0 pCi/L 131851006 11/2/2021 Vogtle DW - Gamma La-140 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma Be-7 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma K-40 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Beta Gross Beta RPUR 7/5/2021 2.454 pCi/L 130196005 7/5/2021 Vogtle DW - Beta Gross Alpha RPUR 7/5/2021 0 pCi/L 130196005 7/5/2021 Vogtle DW - Beta Gross Beta RPUR 8/3/2021 4.415 pCi/L 130593005 8/3/2021 Vogtle DW - Gamma Fe-59 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma Co-58 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma Co-60 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma Zn-65 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma Zr-95 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma I-131 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma Cs-134 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma Cs-137 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma Ba-140 RPUR 11/2/2021 0 pCi/L 131851005 11/2/2021 Vogtle DW - Gamma Fe-59 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma Co-58 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Beta Gross Alpha RPUR 8/3/2021 0 pCi/L 130593005 8/3/2021 Vogtle DW - Beta Gross Beta RPUR 9/7/2021 3.843 pCi/L 131123005 9/7/2021 Vogtle DW - Gamma Co-60 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma Zn-65 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma Zr-95 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma I-131 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma Cs-134 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma Cs-137 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma Ba-140 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma La-140 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma Be-7 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma K-40 FPOR 11/2/2021 0 pCi/L 131851004 11/2/2021 Vogtle DW - Gamma Co-58 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma Co-60 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma Zn-65 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Beta Gross Alpha RPUR 9/7/2021 0 pCi/L 131123005 9/7/2021 Vogtle Water H-3 Tritium RPUR 10/5/2021 566 pCi/L 131707005 10/5/2021 Vogtle DW - Gamma Zr-95 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma I-131 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma Cs-134 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma Cs-137 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma Ba-140 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma La-140 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma Be-7 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma K-40 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle DW - Gamma Fe-59 RPOR 11/2/2021 0 pCi/L 131851003 11/2/2021 Vogtle Milk Gamma Cs-137 GIR 11/9/2021 1.629 pCi/L 131911002 11/9/2021 Vogtle Milk Gamma La-140 GIR 11/9/2021 0 pCi/L 131911002 11/9/2021 Vogtle Milk Gamma K-40 GIR 11/9/2021 1349.9 pCi/L 131911002 11/9/2021 Vogtle DW - Beta Gross Alpha RPUR 10/5/2021 0 pCi/L 131519005 10/5/2021 Vogtle DW - Beta Gross Beta RPUR 10/5/2021 4.376 pCi/L 131519005 10/5/2021 Vogtle DW - Beta Gross Beta RPUR 11/2/2021 1.46 pCi/L 131850005 11/2/2021 Vogtle DW - Beta Gross Alpha RPUR 11/2/2021 0 pCi/L 131850005 11/2/2021 Vogtle Milk Gamma Be-7 GIR 11/9/2021 0 pCi/L 131911002 11/9/2021 Vogtle Milk Gamma Ba-140 GIR 11/9/2021 0 pCi/L 131911002 11/9/2021 Vogtle Milk Gamma Cs-134 GIR 11/9/2021 0 pCi/L 131911002 11/9/2021 Vogtle Milk Gamma I-131 GIR 11/9/2021 0 pCi/L 131911002 11/9/2021 Vogtle Charcoal Ct I-131 GIR 11/9/2021 0 pCi/m3 131942002 11/9/2021 Vogtle Charcoal Ct I-131 WAY 11/9/2021 0 pCi/m3 131942001 11/9/2021 Vogtle Milk Gamma I-131 Milky Way 11/9/2021 0 pCi/L 131911001 11/9/2021 Vogtle Milk Gamma K-40 Milky Way 11/9/2021 1416.5 pCi/L 131911001 11/9/2021 Vogtle Milk Gamma Be-7 Milky Way 11/9/2021 0 pCi/L 131911001 11/9/2021 Vogtle Milk Gamma La-140 Milky Way 11/9/2021 0 pCi/L 131911001 11/9/2021 Vogtle Milk Gamma Ba-140 Milky Way 11/9/2021 0 pCi/L 131911001 11/9/2021 Vogtle Milk Gamma Cs-137 Milky Way 11/9/2021 0 pCi/L 131911001 11/9/2021 Vogtle Milk Gamma Cs-134 Milky Way 11/9/2021 0 pCi/L 131911001 11/9/2021 Vogtle Charcoal Ct I-131 HAN 11/9/2021 0 pCi/m3 131942007 11/9/2021 Vogtle Charcoal Ct I-131 RRD 11/9/2021 0 pCi/m3 131942006 11/9/2021 Vogtle Charcoal Ct I-131 SIM 11/9/2021 0 pCi/m3 131942003 11/9/2021 Vogtle DW - Beta Gross Alpha RPUR 12/8/2021 0 pCi/L 132149005 12/8/2021 Vogtle DW - Beta Gross Beta RPUR 12/8/2021 2.072 pCi/L 132149005 12/8/2021 Vogtle Charcoal Ct I-131 MET 11/9/2021 0 pCi/m3 131942005 11/9/2021 Vogtle Charcoal Ct I-131 DIS 11/9/2021 0 pCi/m3 131942004 11/9/2021 Vogtle River Water Cs-137 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle River Water Ba-140 1495 11/9/2021 0 pCi/L 131913003 11/9/2021

Vogtle River Water La-140 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle River Water Be-7 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle River Water K-40 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle River Water Fe-59 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle River Water Co-58 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle River Water Co-60 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle River Water Zn-65 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle Air Filters Gross Beta RRD 1/5/2021 0.01939 pCi/m3 127933006 1/5/2021 Vogtle River Water Zr-95 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle Air Filters Gross Beta RRD 1/12/2021 0.02632 pCi/m3 128041006 1/12/2021 Vogtle Air Filters Gross Beta RRD 1/19/2021 0.02908 pCi/m3 128181006 1/19/2021 Vogtle River Water I-131 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle River Water Cs-134 1495 11/9/2021 0 pCi/L 131913003 11/9/2021 Vogtle Air Filters Gross Beta RRD 1/26/2021 0.02013 pCi/m3 128275006 1/26/2021 Vogtle Sediment Cs-137 1533 11/9/2021 33.294 pCi/Kg 131914002 11/9/2021 Vogtle Air Filters Gross Beta RRD 2/1/2021 0.02059 pCi/m3 128356006 2/1/2021 Vogtle Sediment Be-7 1533 11/9/2021 332.96 pCi/Kg 131914002 11/9/2021 Vogtle Air Filters Gross Beta RRD 2/9/2021 0.01627 pCi/m3 128458006 2/9/2021 Vogtle Air Filters Gross Beta RRD 2/15/2021 0.0125 pCi/m3 128534006 2/15/2021 Vogtle Sediment K-40 1533 11/9/2021 15622 pCi/Kg 131914002 11/9/2021 Vogtle Sediment Cs-134 1533 11/9/2021 0 pCi/Kg 131914002 11/9/2021 Vogtle Air Filters Gross Beta RRD 2/23/2021 0.02158 pCi/m3 128643006 2/23/2021 Vogtle Air Filters Gross Beta RRD 3/2/2021 0.02428 pCi/m3 128782006 3/2/2021 Vogtle Sediment Co-60 1533 11/9/2021 0 pCi/Kg 131914002 11/9/2021 Vogtle Air Filters Gross Beta RRD 3/9/2021 0.02214 pCi/m3 128863006 3/9/2021 Vogtle Sediment Co-58 1533 11/9/2021 0 pCi/Kg 131914002 11/9/2021 Vogtle River Water Cs-134 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle Air Filters Gross Beta RRD 3/16/2021 0.02628 pCi/m3 128931006 3/16/2021 Vogtle Air Filters Gross Beta RRD 3/23/2021 0.01943 pCi/m3 128999006 3/23/2021 Vogtle River Water Cs-137 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle River Water Ba-140 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle River Water La-140 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle River Water Be-7 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle River Water K-40 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle Air Filters Gross Beta RRD 3/30/2021 0.01549 pCi/m3 129044006 3/30/2021 Vogtle River Water Fe-59 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle Air Filters Gross Beta RRD 4/5/2021 0.02613 pCi/m3 129119006 4/5/2021 Vogtle Air Filters Gross Beta RRD 4/13/2021 0.03308 pCi/m3 129199006 4/13/2021 Vogtle River Water Co-58 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle River Water Co-60 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle Air Filters Gross Beta RRD 4/20/2021 0.03096 pCi/m3 129250006 4/20/2021 Vogtle River Water Zn-65 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle Air Filters Gross Beta RRD 4/27/2021 0.02373 pCi/m3 129295006 4/27/2021 Vogtle Air Filters Gross Beta RRD 5/3/2021 0.02569 pCi/m3 129366006 5/3/2021 Vogtle River Water Zr-95 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle Air Filters Gross Beta RRD 5/11/2021 0.02108 pCi/m3 129445006 5/11/2021 Vogtle Air Filters Gross Beta RRD 5/18/2021 0.02274 pCi/m3 129520006 5/18/2021 Vogtle River Water I-131 1504 11/9/2021 0 pCi/L 131913002 11/9/2021 Vogtle Air Filters Gross Beta RRD 5/25/2021 0.02692 pCi/m3 129573006 5/25/2021 Vogtle River Water Cs-137 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle Air Filters Gross Beta RRD 6/1/2021 0.02281 pCi/m3 129657006 6/1/2021 Vogtle River Water Ba-140 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle Air Filters Gross Beta RRD 6/8/2021 0.01446 pCi/m3 129797006 6/8/2021 Vogtle River Water La-140 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle River Water Be-7 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle Air Filters Gross Beta RRD 6/15/2021 0.01631 pCi/m3 129928006 6/15/2021 Vogtle River Water K-40 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle Air Filters Gross Beta RRD 6/22/2021 0.02127 pCi/m3 130036006 6/22/2021 Vogtle River Water Fe-59 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle River Water Co-58 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle River Water Co-60 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle Air Filters Gross Beta RRD 6/29/2021 0.01561 pCi/m3 130145006 6/29/2021 Vogtle River Water Zn-65 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle River Water Zr-95 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle Air Filters Gross Beta RRD 7/6/2021 0.01478 pCi/m3 130206006 7/6/2021 Vogtle Air Filters Gross Beta RRD 7/12/2021 0.01248 pCi/m3 130290006 7/12/2021 Vogtle River Water I-131 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle Air Filters Gross Beta RRD 7/19/2021 0.01405 pCi/m3 130422006 7/19/2021 Vogtle River Water Cs-134 1512 11/9/2021 0 pCi/L 131913001 11/9/2021 Vogtle Air Filters Gross Beta RRD 7/27/2021 0.02241 pCi/m3 130527006 7/27/2021 Vogtle Air Filters Gross Beta RRD 8/3/2021 0.02954 pCi/m3 130595006 8/3/2021 Vogtle Sediment K-40 1502 11/9/2021 15857 pCi/Kg 131914001 11/9/2021 Vogtle Sediment Be-7 1502 11/9/2021 443.98 pCi/Kg 131914001 11/9/2021 Vogtle Air Filters Gross Beta RRD 8/10/2021 0.02202 pCi/m3 130719006 8/10/2021 Vogtle Air Filters Gross Beta RRD 8/17/2021 0.01769 pCi/m3 130835006 8/17/2021 Vogtle Sediment Cs-137 1502 11/9/2021 106.65 pCi/Kg 131914001 11/9/2021 Vogtle Sediment Cs-134 1502 11/9/2021 0 pCi/Kg 131914001 11/9/2021 Vogtle Air Filters Gross Beta RRD 8/24/2021 0.0143 pCi/m3 130902006 8/24/2021 Vogtle Air Filters Gross Beta RRD 8/31/2021 0.02688 pCi/m3 131012006 8/31/2021 Vogtle Sediment Co-60 1502 11/9/2021 0 pCi/Kg 131914001 11/9/2021 Vogtle Air Filters Gross Beta RRD 9/7/2021 0.02476 pCi/m3 131125006 9/7/2021 Vogtle Sediment Co-58 1502 11/9/2021 0 pCi/Kg 131914001 11/9/2021 Vogtle Air Filters Gross Beta RRD 9/14/2021 0.02821 pCi/m3 131254006 9/14/2021 Vogtle Charcoal Ct I-131 DIS 11/16/2021 0 pCi/m3 131994004 11/16/2021 Vogtle Charcoal Ct I-131 MET 11/16/2021 0 pCi/m3 131994005 11/16/2021

Vogtle Air Filters Gross Beta RRD 9/21/2021 0.02295 pCi/m3 131332006 9/21/2021 Vogtle Charcoal Ct I-131 SIM 11/16/2021 0 pCi/m3 131994003 11/16/2021 Vogtle Charcoal Ct I-131 RRD 11/16/2021 0 pCi/m3 131994006 11/16/2021 Vogtle Charcoal Ct I-131 HAN 11/16/2021 0 pCi/m3 131994007 11/16/2021 Vogtle Charcoal Ct I-131 GIR 11/16/2021 0 pCi/m3 131994002 11/16/2021 Vogtle Charcoal Ct I-131 WAY 11/16/2021 0 pCi/m3 131994001 11/16/2021 Vogtle Air Filters Gross Beta RRD 9/28/2021 0.02691 pCi/m3 131422006 9/28/2021 Vogtle Charcoal Ct I-131 WAY 11/22/2021 0 pCi/m3 132037001 11/22/2021 Vogtle Air Filters Gross Beta RRD 10/5/2021 0.04014 pCi/m3 131549006 10/5/2021 Vogtle Air Filters Gross Beta RRD 10/12/2021 0.01345 pCi/m3 131616006 10/12/2021 Vogtle Charcoal Ct I-131 HAN 11/22/2021 0 pCi/m3 132037007 11/22/2021 Vogtle Air Filters Gross Beta RRD 10/19/2021 0.028 pCi/m3 131695006 10/19/2021 Vogtle Charcoal Ct I-131 RRD 11/22/2021 0 pCi/m3 132037006 11/22/2021 Vogtle Air Filters Gross Beta RRD 10/24/2021 0.03852 pCi/m3 131756006 10/24/2021 Vogtle Charcoal Ct I-131 SIM 11/22/2021 0 pCi/m3 132037003 11/22/2021 Vogtle Air Filters Gross Beta RRD 11/1/2021 0.0195 pCi/m3 131853006 11/1/2021 Vogtle Charcoal Ct I-131 MET 11/22/2021 0 pCi/m3 132037005 11/22/2021 Vogtle Charcoal Ct I-131 DIS 11/22/2021 0 pCi/m3 132037004 11/22/2021 Vogtle Air Filters Gross Beta RRD 11/9/2021 0.02421 pCi/m3 131941006 11/9/2021 Vogtle Charcoal Ct I-131 GIR 11/22/2021 0 pCi/m3 132037002 11/22/2021 Vogtle Air Filters Gross Beta RRD 11/16/2021 0.0268 pCi/m3 131993006 11/16/2021 Vogtle Charcoal Ct I-131 DIS 11/29/2021 0 pCi/m3 132086004 11/29/2021 Vogtle Air Filters Gross Beta RRD 11/22/2021 0.02637 pCi/m3 132036006 11/22/2021 Vogtle Air Filters Gross Beta RRD 11/29/2021 0.02303 pCi/m3 132085006 11/29/2021 Vogtle Charcoal Ct I-131 MET 11/29/2021 0 pCi/m3 132086005 11/29/2021 Vogtle Charcoal Ct I-131 SIM 11/29/2021 0 pCi/m3 132086003 11/29/2021 Vogtle Air Filters Gross Beta RRD 12/7/2021 0.05 pCi/m3 132155006 12/7/2021 Vogtle Air Filters Gross Beta RRD 12/13/2021 0.02634 pCi/m3 132220006 12/13/2021 Vogtle Charcoal Ct I-131 RRD 11/29/2021 0 pCi/m3 132086006 11/29/2021 Vogtle Charcoal Ct I-131 HAN 11/29/2021 0 pCi/m3 132086007 11/29/2021 Vogtle Air Filters Gross Beta RRD 12/21/2021 0.02002 pCi/m3 132273006 12/21/2021 Vogtle Charcoal Ct I-131 WAY 11/29/2021 0 pCi/m3 132086001 11/29/2021 Vogtle Charcoal Ct I-131 GIR 11/29/2021 0 pCi/m3 132086002 11/29/2021 Vogtle Milk Gamma I-131 GIR 11/30/2021 0 pCi/L 132084002 11/30/2021 Vogtle Milk Gamma Cs-134 GIR 11/30/2021 0 pCi/L 132084002 11/30/2021 Vogtle Milk Gamma Ba-140 GIR 11/30/2021 0 pCi/L 132084002 11/30/2021 Vogtle Air Filters Gross Beta RRD 12/28/2021 0.02951 pCi/m3 132323006 12/28/2021 Vogtle Air Filters Gross Beta SIM 1/5/2021 0.01856 pCi/m3 127933003 1/5/2021 Vogtle Milk Gamma La-140 GIR 11/30/2021 0 pCi/L 132084002 11/30/2021 Vogtle Milk Gamma Be-7 GIR 11/30/2021 0 pCi/L 132084002 11/30/2021 Vogtle Air Filters Gross Beta SIM 1/12/2021 0.02885 pCi/m3 128041003 1/12/2021 Vogtle Air Filters Gross Beta SIM 1/19/2021 0.0268 pCi/m3 128181003 1/19/2021 Vogtle Milk Gamma K-40 GIR 11/30/2021 1353 pCi/L 132084002 11/30/2021 Vogtle Air Filters Gross Beta SIM 1/26/2021 0.02122 pCi/m3 128275003 1/26/2021 Vogtle Milk Gamma Cs-137 GIR 11/30/2021 0 pCi/L 132084002 11/30/2021 Vogtle Vegetation Be-7 WAY 11/30/2021 585.8 pCi/Kg 132087001 11/30/2021 Vogtle Vegetation Cs-137 WAY 11/30/2021 0 pCi/Kg 132087001 11/30/2021 Vogtle Vegetation Cs-134 WAY 11/30/2021 0 pCi/Kg 132087001 11/30/2021 Vogtle Vegetation I-131 WAY 11/30/2021 0 pCi/Kg 132087001 11/30/2021 Vogtle Vegetation K-40 WAY 11/30/2021 7445.3 pCi/Kg 132087001 11/30/2021 Vogtle Air Filters Gross Beta SIM 2/1/2021 0.02096 pCi/m3 128356003 2/1/2021 Vogtle Milk Gamma K-40 Milky Way 11/30/2021 1467.6 pCi/L 132084001 11/30/2021 Vogtle Milk Gamma Be-7 Milky Way 11/30/2021 0 pCi/L 132084001 11/30/2021 Vogtle Air Filters Gross Beta SIM 2/9/2021 0.01892 pCi/m3 128458003 2/9/2021 Vogtle Milk Gamma La-140 Milky Way 11/30/2021 0 pCi/L 132084001 11/30/2021 Vogtle Air Filters Gross Beta SIM 2/15/2021 0.01061 pCi/m3 128534003 2/15/2021 Vogtle Milk Gamma Ba-140 Milky Way 11/30/2021 0 pCi/L 132084001 11/30/2021 Vogtle Air Filters Gross Beta SIM 2/23/2021 0.02401 pCi/m3 128643003 2/23/2021 Vogtle Milk Gamma Cs-137 Milky Way 11/30/2021 0 pCi/L 132084001 11/30/2021 Vogtle Air Filters Gross Beta SIM 3/2/2021 0.02434 pCi/m3 128782003 3/2/2021 Vogtle Air Filters Gross Beta SIM 3/9/2021 0.02717 pCi/m3 128863003 3/9/2021 Vogtle Milk Gamma Cs-134 Milky Way 11/30/2021 0 pCi/L 132084001 11/30/2021 Vogtle Air Filters Gross Beta SIM 3/16/2021 0.02506 pCi/m3 128931003 3/16/2021 Vogtle Milk Gamma I-131 Milky Way 11/30/2021 0 pCi/L 132084001 11/30/2021 Vogtle Vegetation Cs-134 HAN 11/30/2021 0 pCi/Kg 132087003 11/30/2021 Vogtle Air Filters Gross Beta SIM 3/23/2021 0.01929 pCi/m3 128999003 3/23/2021 Vogtle Vegetation I-131 HAN 11/30/2021 0 pCi/Kg 132087003 11/30/2021 Vogtle Vegetation Be-7 HAN 11/30/2021 657.03 pCi/Kg 132087003 11/30/2021 Vogtle Vegetation K-40 HAN 11/30/2021 8691.3 pCi/Kg 132087003 11/30/2021 Vogtle Vegetation Cs-137 HAN 11/30/2021 0 pCi/Kg 132087003 11/30/2021 Vogtle Air Filters Gross Beta SIM 3/30/2021 0.01814 pCi/m3 129044003 3/30/2021 Vogtle Vegetation Cs-137 SIM 11/30/2021 0 pCi/Kg 132087002 11/30/2021 Vogtle Vegetation Cs-134 SIM 11/30/2021 0 pCi/Kg 132087002 11/30/2021 Vogtle Vegetation I-131 SIM 11/30/2021 0 pCi/Kg 132087002 11/30/2021 Vogtle Vegetation Be-7 SIM 11/30/2021 234.55 pCi/Kg 132087002 11/30/2021 Vogtle Vegetation K-40 SIM 11/30/2021 8690.1 pCi/Kg 132087002 11/30/2021 Vogtle Charcoal Ct I-131 DIS 12/7/2021 0 pCi/m3 132156004 12/7/2021 Vogtle Charcoal Ct I-131 MET 12/7/2021 0 pCi/m3 132156005 12/7/2021 Vogtle Air Filters Gross Beta SIM 4/5/2021 0.02225 pCi/m3 129119003 4/5/2021 Vogtle Charcoal Ct I-131 SIM 12/7/2021 0 pCi/m3 132156003 12/7/2021 Vogtle Air Filters Gross Beta SIM 4/13/2021 0.02875 pCi/m3 129199003 4/13/2021 Vogtle Air Filters Gross Beta SIM 4/20/2021 0.03176 pCi/m3 129250003 4/20/2021 Vogtle Charcoal Ct I-131 RRD 12/7/2021 0 pCi/m3 132156006 12/7/2021 Vogtle Air Filters Gross Beta SIM 4/27/2021 0.02635 pCi/m3 129295003 4/27/2021 Vogtle Charcoal Ct I-131 HAN 12/7/2021 0 pCi/m3 132156007 12/7/2021

Vogtle Charcoal Ct I-131 WAY 12/7/2021 0 pCi/m3 132156001 12/7/2021 Vogtle Charcoal Ct I-131 GIR 12/7/2021 0 pCi/m3 132156002 12/7/2021 Vogtle DW - Gamma Ba-140 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle DW - Gamma La-140 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle DW - Gamma Be-7 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle DW - Gamma K-40 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle Air Filters Gross Beta SIM 5/3/2021 0.02823 pCi/m3 129366003 5/3/2021 Vogtle Air Filters Gross Beta SIM 5/11/2021 0.02372 pCi/m3 129445003 5/11/2021 Vogtle Air Filters Gross Beta SIM 5/18/2021 0.02098 pCi/m3 129520003 5/18/2021 Vogtle DW - Gamma Fe-59 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle DW - Gamma Co-58 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle Air Filters Gross Beta SIM 5/25/2021 0.03069 pCi/m3 129573003 5/25/2021 Vogtle DW - Gamma Co-60 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle DW - Gamma Zn-65 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle DW - Gamma Zr-95 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle DW - Gamma I-131 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle DW - Gamma Cs-134 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle Air Filters Gross Beta SIM 6/1/2021 0.02488 pCi/m3 129657003 6/1/2021 Vogtle Air Filters Gross Beta SIM 6/8/2021 0.01462 pCi/m3 129797003 6/8/2021 Vogtle DW - Gamma Cs-137 FAUC 12/8/2021 0 pCi/L 132150002 12/8/2021 Vogtle Air Filters Gross Beta SIM 6/15/2021 0.01725 pCi/m3 129928003 6/15/2021 Vogtle DW - Gamma Zn-65 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle DW - Gamma Zr-95 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle Air Filters Gross Beta SIM 6/22/2021 0.02203 pCi/m3 130036003 6/22/2021 Vogtle DW - Gamma I-131 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle DW - Gamma Cs-134 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle DW - Gamma Cs-137 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle DW - Gamma Ba-140 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle Air Filters Gross Beta SIM 6/29/2021 0.01597 pCi/m3 130145003 6/29/2021 Vogtle DW - Gamma La-140 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle DW - Gamma Be-7 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle DW - Gamma K-40 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle DW - Gamma Fe-59 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle Air Filters Gross Beta SIM 7/6/2021 0.01444 pCi/m3 130206003 7/6/2021 Vogtle DW - Gamma Co-58 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle Air Filters Gross Beta SIM 7/12/2021 0.01581 pCi/m3 130290003 7/12/2021 Vogtle DW - Gamma Co-60 RAUC 12/8/2021 0 pCi/L 132150001 12/8/2021 Vogtle Air Filters Gross Beta SIM 7/19/2021 0.01753 pCi/m3 130422003 7/19/2021 Vogtle DW - Gamma Zr-95 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle Air Filters Gross Beta SIM 7/27/2021 0.01881 pCi/m3 130527003 7/27/2021 Vogtle DW - Gamma I-131 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle DW - Gamma Cs-134 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle DW - Gamma Cs-137 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle DW - Gamma Ba-140 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle DW - Gamma La-140 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle DW - Gamma Be-7 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle Air Filters Gross Beta SIM 8/3/2021 0.02997 pCi/m3 130595003 8/3/2021 Vogtle Air Filters Gross Beta SIM 8/10/2021 0.02021 pCi/m3 130719003 8/10/2021 Vogtle DW - Gamma K-40 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle Air Filters Gross Beta SIM 8/17/2021 0.01778 pCi/m3 130835003 8/17/2021 Vogtle Air Filters Gross Beta SIM 8/24/2021 0.0146 pCi/m3 130902003 8/24/2021 Vogtle DW - Gamma Fe-59 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle DW - Gamma Co-58 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle Air Filters Gross Beta SIM 8/31/2021 0.02741 pCi/m3 131012003 8/31/2021 Vogtle DW - Gamma Co-60 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle DW - Gamma Zn-65 FPUR 12/8/2021 0 pCi/L 132150006 12/8/2021 Vogtle DW - Gamma Ba-140 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle DW - Gamma Zr-95 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle DW - Gamma La-140 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle Air Filters Gross Beta SIM 9/7/2021 0.02317 pCi/m3 131125003 9/7/2021 Vogtle DW - Gamma Be-7 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle DW - Gamma K-40 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle Air Filters Gross Beta SIM 9/14/2021 0.02745 pCi/m3 131254003 9/14/2021 Vogtle Air Filters Gross Beta SIM 9/21/2021 0.01804 pCi/m3 131332003 9/21/2021 Vogtle DW - Gamma Fe-59 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle Air Filters Gross Beta SIM 9/28/2021 0.027 pCi/m3 131422003 9/28/2021 Vogtle DW - Gamma Co-58 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle DW - Gamma Co-60 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle DW - Gamma Zn-65 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle DW - Gamma I-131 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle DW - Gamma Cs-134 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle DW - Gamma Cs-137 RPUR 12/8/2021 0 pCi/L 132150005 12/8/2021 Vogtle DW - Gamma Zn-65 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle DW - Gamma Zr-95 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle Air Filters Gross Beta SIM 10/5/2021 0.03998 pCi/m3 131549003 10/5/2021 Vogtle DW - Gamma I-131 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle Air Filters Gross Beta SIM 10/12/2021 0.01309 pCi/m3 131616003 10/12/2021 Vogtle Air Filters Gross Beta SIM 10/19/2021 0.02971 pCi/m3 131695003 10/19/2021 Vogtle DW - Gamma Cs-134 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle Air Filters Gross Beta SIM 10/24/2021 0.04059 pCi/m3 131756003 10/24/2021 Vogtle DW - Gamma Cs-137 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle DW - Gamma Ba-140 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle DW - Gamma La-140 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle DW - Gamma Be-7 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle DW - Gamma K-40 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021

Vogtle DW - Gamma Fe-59 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle Air Filters Gross Beta SIM 11/1/2021 0.01555 pCi/m3 131853003 11/1/2021 Vogtle Air Filters Gross Beta SIM 11/9/2021 0.02932 pCi/m3 131941003 11/9/2021 Vogtle DW - Gamma Co-58 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle DW - Gamma Co-60 FPOR 12/8/2021 0 pCi/L 132150004 12/8/2021 Vogtle Air Filters Gross Beta SIM 11/16/2021 0.02543 pCi/m3 131993003 11/16/2021 Vogtle Air Filters Gross Beta SIM 11/22/2021 0.02485 pCi/m3 132036003 11/22/2021 Vogtle DW - Gamma Fe-59 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle Air Filters Gross Beta SIM 11/29/2021 0.02319 pCi/m3 132085003 11/29/2021 Vogtle DW - Gamma Co-58 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle DW - Gamma Co-60 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle DW - Gamma Zn-65 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle DW - Gamma Zr-95 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle DW - Gamma I-131 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle Air Filters Gross Beta SIM 12/7/2021 0.0476 pCi/m3 132155003 12/7/2021 Vogtle Air Filters Gross Beta SIM 12/13/2021 0.02829 pCi/m3 132220003 12/13/2021 Vogtle DW - Gamma Cs-134 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle Air Filters Gross Beta SIM 12/21/2021 0.02301 pCi/m3 132273003 12/21/2021 Vogtle DW - Gamma Cs-137 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle Air Filters Gross Beta SIM 12/28/2021 0.02722 pCi/m3 132323003 12/28/2021 Vogtle DW - Gamma Ba-140 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle DW - Gamma La-140 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle DW - Gamma Be-7 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle DW - Gamma K-40 RPOR 12/8/2021 0 pCi/L 132150003 12/8/2021 Vogtle Charcoal Ct I-131 DIS 12/13/2021 0 pCi/m3 132221004 12/13/2021 Vogtle Charcoal Ct I-131 MET 12/13/2021 0 pCi/m3 132221005 12/13/2021 Vogtle Air Filters Gross Beta WAY 1/5/2021 0.018 pCi/m3 127933001 1/5/2021 Vogtle Charcoal Ct I-131 SIM 12/13/2021 0 pCi/m3 132221003 12/13/2021 Vogtle Air Filters Gross Beta WAY 1/12/2021 0.02501 pCi/m3 128041001 1/12/2021 Vogtle Charcoal Ct I-131 RRD 12/13/2021 0 pCi/m3 132221006 12/13/2021 Vogtle Air Filters Gross Beta WAY 1/19/2021 0.02529 pCi/m3 128181001 1/19/2021 Vogtle Charcoal Ct I-131 HAN 12/13/2021 0 pCi/m3 132221007 12/13/2021 Vogtle Charcoal Ct I-131 WAY 12/13/2021 0 pCi/m3 132221001 12/13/2021 Vogtle Charcoal Ct I-131 GIR 12/13/2021 0 pCi/m3 132221002 12/13/2021 Vogtle Milk Gamma I-131 Milky Way 12/14/2021 0 pCi/L 132216001 12/14/2021 Vogtle Milk Gamma K-40 Milky Way 12/14/2021 1487.6 pCi/L 132216001 12/14/2021 Vogtle Air Filters Gross Beta WAY 1/26/2021 0.0193 pCi/m3 128275001 1/26/2021 Vogtle Milk Gamma Be-7 Milky Way 12/14/2021 0 pCi/L 132216001 12/14/2021 Vogtle Air Filters Gross Beta WAY 2/1/2021 0.01654 pCi/m3 128356001 2/1/2021 Vogtle Milk Gamma La-140 Milky Way 12/14/2021 0 pCi/L 132216001 12/14/2021 Vogtle Milk Gamma Ba-140 Milky Way 12/14/2021 0 pCi/L 132216001 12/14/2021 Vogtle Air Filters Gross Beta WAY 2/9/2021 0.01714 pCi/m3 128458001 2/9/2021 Vogtle Milk Gamma Cs-137 Milky Way 12/14/2021 0 pCi/L 132216001 12/14/2021 Vogtle Air Filters Gross Beta WAY 2/15/2021 0.009232 pCi/m3 128534001 2/15/2021 Vogtle Air Filters Gross Beta WAY 2/23/2021 0.02106 pCi/m3 128643001 2/23/2021 Vogtle Milk Gamma Cs-134 Milky Way 12/14/2021 0 pCi/L 132216001 12/14/2021 Vogtle Milk Gamma Cs-137 GIR 12/14/2021 1.2634 pCi/L 132216002 12/14/2021 Vogtle Air Filters Gross Beta WAY 3/2/2021 0.02318 pCi/m3 128782001 3/2/2021 Vogtle Air Filters Gross Beta WAY 3/9/2021 0.02959 pCi/m3 128863001 3/9/2021 Vogtle Milk Gamma Ba-140 GIR 12/14/2021 0 pCi/L 132216002 12/14/2021 Vogtle Air Filters Gross Beta WAY 3/16/2021 0.02544 pCi/m3 128931001 3/16/2021 Vogtle Milk Gamma La-140 GIR 12/14/2021 0 pCi/L 132216002 12/14/2021 Vogtle Milk Gamma Be-7 GIR 12/14/2021 0 pCi/L 132216002 12/14/2021 Vogtle Air Filters Gross Beta WAY 3/23/2021 0.01742 pCi/m3 128999001 3/23/2021 Vogtle Milk Gamma K-40 GIR 12/14/2021 1377.1 pCi/L 132216002 12/14/2021 Vogtle Milk Gamma I-131 GIR 12/14/2021 0 pCi/L 132216002 12/14/2021 Vogtle Milk Gamma Cs-134 GIR 12/14/2021 0 pCi/L 132216002 12/14/2021 Vogtle River Water Fe-59 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle Air Filters Gross Beta WAY 3/30/2021 0.01694 pCi/m3 129044001 3/30/2021 Vogtle River Water Co-58 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle River Water Co-60 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle River Water Zn-65 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle River Water Zr-95 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle River Water I-131 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle River Water Cs-134 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle Air Filters Gross Beta WAY 4/5/2021 0.02498 pCi/m3 129119001 4/5/2021 Vogtle River Water Cs-137 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle Air Filters Gross Beta WAY 4/13/2021 0.028 pCi/m3 129199001 4/13/2021 Vogtle River Water Ba-140 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle Air Filters Gross Beta WAY 4/20/2021 0.02591 pCi/m3 129250001 4/20/2021 Vogtle River Water La-140 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle River Water Be-7 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle River Water K-40 1495 12/14/2021 0 pCi/L 132217003 12/14/2021 Vogtle River Water Fe-59 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle Air Filters Gross Beta WAY 4/27/2021 0.02089 pCi/m3 129295001 4/27/2021 Vogtle River Water Co-58 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle Air Filters Gross Beta WAY 5/3/2021 0.02955 pCi/m3 129366001 5/3/2021 Vogtle River Water Zr-95 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle Air Filters Gross Beta WAY 5/11/2021 0.02257 pCi/m3 129445001 5/11/2021 Vogtle Air Filters Gross Beta WAY 5/18/2021 0.02202 pCi/m3 129520001 5/18/2021 Vogtle River Water I-131 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle Air Filters Gross Beta WAY 5/25/2021 0.02791 pCi/m3 129573001 5/25/2021 Vogtle River Water Cs-134 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle River Water Cs-137 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle River Water Ba-140 1504 12/14/2021 0 pCi/L 132217002 12/14/2021

Vogtle River Water La-140 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle River Water Be-7 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle Air Filters Gross Beta WAY 6/1/2021 0.0293 pCi/m3 129657001 6/1/2021 Vogtle River Water K-40 1504 12/14/2021 142.43 pCi/L 132217002 12/14/2021 Vogtle River Water Co-60 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle Air Filters Gross Beta WAY 6/8/2021 0.01222 pCi/m3 129797001 6/8/2021 Vogtle Air Filters Gross Beta WAY 6/15/2021 0.01302 pCi/m3 129928001 6/15/2021 Vogtle River Water Zn-65 1504 12/14/2021 0 pCi/L 132217002 12/14/2021 Vogtle Air Filters Gross Beta WAY 6/22/2021 0.02019 pCi/m3 130036001 6/22/2021 Vogtle River Water La-140 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle River Water Be-7 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle River Water K-40 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle Air Filters Gross Beta WAY 6/29/2021 0.01802 pCi/m3 130145001 6/29/2021 Vogtle River Water Fe-59 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle River Water Co-58 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle River Water Co-60 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle River Water Zn-65 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle River Water Zr-95 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle River Water I-131 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle River Water Cs-134 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle Air Filters Gross Beta WAY 7/6/2021 0.01528 pCi/m3 130206001 7/6/2021 Vogtle River Water Cs-137 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle Air Filters Gross Beta WAY 7/12/2021 0.01546 pCi/m3 130290001 7/12/2021 Vogtle Air Filters Gross Beta WAY 7/19/2021 0.01514 pCi/m3 130422001 7/19/2021 Vogtle River Water Ba-140 1512 12/14/2021 0 pCi/L 132217001 12/14/2021 Vogtle Air Filters Gross Beta WAY 7/27/2021 0.0194 pCi/m3 130527001 7/27/2021 Vogtle Milk Gamma K-40 Milky Way 12/21/2021 1470.1 pCi/L 132272001 12/21/2021 Vogtle Milk Gamma Be-7 Milky Way 12/21/2021 0 pCi/L 132272001 12/21/2021 Vogtle Milk Gamma La-140 Milky Way 12/21/2021 0 pCi/L 132272001 12/21/2021 Vogtle Milk Gamma Ba-140 Milky Way 12/21/2021 0 pCi/L 132272001 12/21/2021 Vogtle Milk Gamma Cs-137 Milky Way 12/21/2021 0 pCi/L 132272001 12/21/2021 Vogtle Milk Gamma Cs-134 Milky Way 12/21/2021 0 pCi/L 132272001 12/21/2021 Vogtle Milk Gamma I-131 Milky Way 12/21/2021 0 pCi/L 132272001 12/21/2021 Vogtle Air Filters Gross Beta WAY 8/3/2021 0.0246 pCi/m3 130595001 8/3/2021 Vogtle Milk Gamma Cs-137 GIR 12/21/2021 0.93542 pCi/L 132272002 12/21/2021 Vogtle Air Filters Gross Beta WAY 8/10/2021 0.02261 pCi/m3 130719001 8/10/2021 Vogtle Milk Gamma K-40 GIR 12/21/2021 1375.7 pCi/L 132272002 12/21/2021 Vogtle Air Filters Gross Beta WAY 8/17/2021 0.01765 pCi/m3 130835001 8/17/2021 Vogtle Milk Gamma I-131 GIR 12/21/2021 0 pCi/L 132272002 12/21/2021 Vogtle Air Filters Gross Beta WAY 8/24/2021 0.01442 pCi/m3 130902001 8/24/2021 Vogtle Milk Gamma Cs-134 GIR 12/21/2021 0 pCi/L 132272002 12/21/2021 Vogtle Milk Gamma Ba-140 GIR 12/21/2021 0 pCi/L 132272002 12/21/2021 Vogtle Milk Gamma La-140 GIR 12/21/2021 0 pCi/L 132272002 12/21/2021 Vogtle Milk Gamma Be-7 GIR 12/21/2021 0 pCi/L 132272002 12/21/2021 Vogtle Charcoal Ct I-131 WAY 12/21/2021 0 pCi/m3 132274001 12/21/2021 Vogtle Air Filters Gross Beta WAY 8/31/2021 0.02725 pCi/m3 131012001 8/31/2021 Vogtle Charcoal Ct I-131 GIR 12/21/2021 0 pCi/m3 132274002 12/21/2021 Vogtle Air Filters Gross Beta WAY 9/7/2021 0.02513 pCi/m3 131125001 9/7/2021 Vogtle Charcoal Ct I-131 HAN 12/21/2021 0 pCi/m3 132274007 12/21/2021 Vogtle Air Filters Gross Beta WAY 9/14/2021 0.02501 pCi/m3 131254001 9/14/2021 Vogtle Charcoal Ct I-131 RRD 12/21/2021 0 pCi/m3 132274006 12/21/2021 Vogtle Air Filters Gross Beta WAY 9/21/2021 0.02199 pCi/m3 131332001 9/21/2021 Vogtle Charcoal Ct I-131 SIM 12/21/2021 0 pCi/m3 132274003 12/21/2021 Vogtle Charcoal Ct I-131 MET 12/21/2021 0 pCi/m3 132274005 12/21/2021 Vogtle Charcoal Ct I-131 DIS 12/21/2021 0 pCi/m3 132274004 12/21/2021 Vogtle Air Qtr Comp Cs-137 WAY 12/28/2021 0 pCi/m3 132406001 12/28/2021 Vogtle Air Qtr Comp Be-7 WAY 12/28/2021 0.0936 pCi/m3 132406001 12/28/2021 Vogtle Air Filters Gross Beta WAY 9/28/2021 0.02485 pCi/m3 131422001 9/28/2021 Vogtle Charcoal Ct I-131 WAY 12/28/2021 0 pCi/m3 132324001 12/28/2021 Vogtle Air Qtr Comp Cs-134 WAY 12/28/2021 0 pCi/m3 132406001 12/28/2021 Vogtle Air Qtr Comp I-131 WAY 12/28/2021 0 pCi/m3 132406001 12/28/2021 Vogtle Air Qtr Comp Cs-137 GIR 12/28/2021 0 pCi/m3 132406002 12/28/2021 Vogtle Air Qtr Comp Be-7 GIR 12/28/2021 0.08143 pCi/m3 132406002 12/28/2021 Vogtle Air Qtr Comp I-131 GIR 12/28/2021 0 pCi/m3 132406002 12/28/2021 Vogtle Air Filters Gross Beta WAY 10/5/2021 0.04207 pCi/m3 131549001 10/5/2021 Vogtle Air Qtr Comp Cs-134 GIR 12/28/2021 0 pCi/m3 132406002 12/28/2021 Vogtle Air Filters Gross Beta WAY 10/12/2021 0.01448 pCi/m3 131616001 10/12/2021 Vogtle Charcoal Ct I-131 GIR 12/28/2021 0 pCi/m3 132324002 12/28/2021 Vogtle Air Filters Gross Beta WAY 10/19/2021 0.02811 pCi/m3 131695001 10/19/2021 Vogtle Charcoal Ct I-131 SIM 12/28/2021 0 pCi/m3 132324003 12/28/2021 Vogtle Air Qtr Comp I-131 SIM 12/28/2021 0 pCi/m3 132406003 12/28/2021 Vogtle Air Filters Gross Beta WAY 10/24/2021 0.04081 pCi/m3 131756001 10/24/2021 Vogtle Air Qtr Comp Be-7 SIM 12/28/2021 0.07457 pCi/m3 132406003 12/28/2021 Vogtle Air Qtr Comp Cs-137 SIM 12/28/2021 0 pCi/m3 132406003 12/28/2021 Vogtle Air Qtr Comp Cs-134 SIM 12/28/2021 0 pCi/m3 132406003 12/28/2021 Vogtle Charcoal Ct I-131 HAN 12/28/2021 0 pCi/m3 132324007 12/28/2021 Vogtle Air Qtr Comp I-131 HAN 12/28/2021 0 pCi/m3 132406007 12/28/2021 Vogtle Air Qtr Comp Be-7 HAN 12/28/2021 0.07349 pCi/m3 132406007 12/28/2021 Vogtle Air Filters Gross Beta WAY 11/1/2021 0.019 pCi/m3 131853001 11/1/2021 Vogtle Air Qtr Comp Cs-137 HAN 12/28/2021 0 pCi/m3 132406007 12/28/2021 Vogtle Air Filters Gross Beta WAY 11/9/2021 0.02764 pCi/m3 131941001 11/9/2021 Vogtle Air Filters Gross Beta WAY 11/16/2021 0.02624 pCi/m3 131993001 11/16/2021 Vogtle Air Qtr Comp Cs-134 HAN 12/28/2021 0 pCi/m3 132406007 12/28/2021 Vogtle Charcoal Ct I-131 RRD 12/28/2021 0 pCi/m3 132324006 12/28/2021 Vogtle Air Filters Gross Beta WAY 11/22/2021 0.02453 pCi/m3 132036001 11/22/2021

Vogtle Air Qtr Comp Be-7 RRD 12/28/2021 0.09672 pCi/m3 132406006 12/28/2021 Vogtle Air Filters Gross Beta WAY 11/29/2021 0.03256 pCi/m3 132085001 11/29/2021 Vogtle Air Qtr Comp Cs-137 RRD 12/28/2021 0 pCi/m3 132406006 12/28/2021 Vogtle Air Qtr Comp Cs-134 RRD 12/28/2021 0 pCi/m3 132406006 12/28/2021 Vogtle Air Qtr Comp I-131 RRD 12/28/2021 0 pCi/m3 132406006 12/28/2021 Vogtle Charcoal Ct I-131 MET 12/28/2021 0 pCi/m3 132324005 12/28/2021 Vogtle Air Qtr Comp Be-7 MET 12/28/2021 0.075 pCi/m3 132406005 12/28/2021 Vogtle Air Qtr Comp Cs-137 MET 12/28/2021 0 pCi/m3 132406005 12/28/2021 Vogtle Air Filters Gross Beta WAY 12/7/2021 0.04818 pCi/m3 132155001 12/7/2021 Vogtle Air Qtr Comp Cs-134 MET 12/28/2021 0 pCi/m3 132406005 12/28/2021 Vogtle Air Filters Gross Beta WAY 12/13/2021 0.02581 pCi/m3 132220001 12/13/2021 Vogtle Air Filters Gross Beta WAY 12/21/2021 0.01789 pCi/m3 132273001 12/21/2021 Vogtle Air Qtr Comp I-131 MET 12/28/2021 0 pCi/m3 132406005 12/28/2021 Vogtle Air Qtr Comp Cs-134 DIS 12/28/2021 0 pCi/m3 132406004 12/28/2021 Vogtle Air Qtr Comp I-131 DIS 12/28/2021 0 pCi/m3 132406004 12/28/2021 Vogtle Charcoal Ct I-131 DIS 12/28/2021 0 pCi/m3 132324004 12/28/2021 Vogtle Air Qtr Comp Be-7 DIS 12/28/2021 0.08925 pCi/m3 132406004 12/28/2021 Vogtle Air Qtr Comp Cs-137 DIS 12/28/2021 0 pCi/m3 132406004 12/28/2021 Vogtle Air Filters Gross Beta WAY 12/28/2021 0.02598 pCi/m3 132323001 12/28/2021

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NL-22-0344, Annual Radiological Environmental Operating Reports for 2021

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NL-22-0344, Annual Radiological Environmental Operating Reports for 2021

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