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Submittal of 2016 Annual Radiological Environmental Operating Report
	ML17121A037
Person / Time
Site:	Wolf Creek
Issue date:	04/24/2017
From:	Hafenstine C; Wolf Creek
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	RA 17-0035
	Download: ML17121A037 (173)
	v • d • e

W9LFCREEK 'NUCLEAR OPERATING CORPORATION April 24, 2017 Cynthia R. Hafenstine Manager Nuclear and Regulatory Affairs RA 17-0035 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Docket No. 50-482: 2016 Annual Radiological Environmental Operating Report To Whom It May Concern:

The purpose of this letter is to submit the enclosed Annual Radiological Environmental Operating Report, which is being submitted pursuant to Wolf Creek Generating Station (WCGS) Technical Specification 5.6.2. This report covers radiological environmental monitoring for WCGS for the period of January 1, 2016, through December 31, 2016.

This letter contains no commitments. If you have any questions concerning this matter, please contact me at (620) 364-4204.

Sincerely, Cynthia R. Hafenstine CRH/rlt Enclosure cc: K. M. Kennedy (NRG), w/e B. K. Singal (NRC}, w/e N. H. Taylor (NRC}, w/e Senior Resident Inspector (NRG}, w/e P.O. Box 411 I Burlington, KS 66839 I Phone: (620) 364-8831 An Equal Opportunity Employer M/F/HCNET

Wolf Creek Generating Station 2016 Annual Radiological Environmental Operating Report (171 pages)

WOLF CREEK NUCLEAR OPERATING CORPORATION

J WOLF CREEK GENERATING STATION 2016 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT

. April 15, 2017

TABLE OF CONTENTS List of Tables ii List of Figures ii List of Charts ii

. Executive *summary 1 Introduction 1 I. Program Description 1

11. Discussion of Results 4 Ill. Program Revisions/Changes 10 IV. Program Deviations 10 V. lnterlaboratory Comparison Program 11 VI. Comparison to the Radioactive Effluent Release Program 11 Tables 12 Figures 21 Charts 26 Appendix A - lnterlaboratory Comparison Program Results Appendix B - Summary Tables Appendix C- Individual Sample Results Air Particulate Filters and Radioiodine Canisters C-1 Quarterly Air Particulate - Gamma C-13 Surface Water C-20 Ground Water C-28 Drinking Water C-44 Quarterly Drinking Water.,... Tritium C-52 Shoreline Sediment C-54 Fish C-57 Food/Garden C-64 Food/Crops C-76 Bottom Sediment C-79 Aquatic Vegetation C-96 Terrestrial Vegetation C-98 Soil C-99 Deer C-100 Appendix D - Land Use Census Report

LIST OF TABLES 1 Radiological Environmental Monitoring Program Description 12 2 Sample Location Identifiers, Distances (Miles) and Directions (Sectors) 17 3 OSL Dosimeter Results 20 LIST OF FIGURES 1 Airborne Pathway Sampling Locations 21 2* Direct Radiation Pathway Sarnpling Locations 22 3 Waterborne Pathway Sampling Locations 23 4 Ingestion Pathway Sampling Locations 24 5 Distant Sampling Locations 25 LIST OF CHARTS 1 Airborne Gross Beta Weekly Results 26 2 Historical Airborne Smoothed Indicator and Control Gross Beta 27 3 OSL Dosimeters - Indicator and Control Locations 28 4 Historical TLD Nearsite Locations and Control Locations 29 5 Coffey County Lake Surface Water Tritium Data,. 30 6 Drinking Water Gross Beta (5 years) 31 7 Detected Cs-137 Activity in Bottom Sediment 32 ii

EXECUTIVE

SUMMARY

Plant-related activation, corrosion, or fission products were not detected during 2016 in air particulate filters, radioiodine canisters, ground water, broadleaf vegetation, shoreline sediment, crops, bottom sediment, aquatic vegetation, terrestrial vegetation or soil samples. Activation, corrosion or fission products attributable to plant operation were detected during 2016 in drinking water, surface water, fish, and deer samples.

Nuclides detected in Radiological Environmental Monitoring Program (REMP) samples were below applicable Nuclear Regulatory Commission (NRC) reporting levels.

Based upon the REMP results, it was concluded station operations had no significant radiological impact on the health and safety of the public or the environment.

INTRODUCTION The 2016 Annual Radiological Environmental Operating Report for Wolf Creek Generating.

Station (WCGS) covers the period from January 1 through December 31, 2016. WCGS is located in Coffey County, Kansas, approximately five miles northeast of Burlington, Kansas.

Fuel loading commenced at WCGS on March 12, 1985. The operational phase of the REMP began with initial criticality on May 22, 1985, and the first detectable quantities of radioactivity were reported in plant effluents in June 1985.

This report contains a description of the REMP conducted by Wolf Creek Nuclear Operating Corporation (WCNOC), a discussion of monitoring program results, the revisions or changes to the program, program deviations, the lnterlaboratory Comparison Program and a comparison to the Radioactive Effluent Release Program. The lnterlaboratory Comparison Program results, a summary of results in the NRC Branch Technical Position specified format, the individual sample results, and the Land Use Census Report are included as appendices.

I. PROGRAM DESCRIPTION Radiological environmental monitoring samples were collected according to the schedule in WCGS procedure AP 07B-004, Offsite Dose Calculation Manual (Radiological Environmental

.Monitoring Program). Radiological environmental monitoring program samples were collected by the WCGS Environmental Management group and were analyzed by Environmental, Inc.

Landauer, Inc. processed the environmental optically stimulated luminescence (OSL) dosimeters. Table 1 identifies the exposure pathway/sample type, number of samples and sample locations, sample collection frequency, and the type and frequency of analysis. Table 2 lists the sample location identifiers, distances and directions from the plant. Samples in addition to those required by AP 07B-004 were also obtained and analyzed.

The following is a description of the sampling and analysis program by individual pathways.

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 1of32

A. Airborne Pathway Low volume air sampling pumps with digital flow meters continuously sampled air through 47 mm glass fiber particulate filters and radioiodine canisters, respectively. The air particulate filters and radioiodine canisters were collected weekly. Gross beta analysis was performed weekly on the air particulate filters. Gamma isotopic analysis was also performed quarterly on the air particulate filters. Radioiodine canisters were analyzed weekly for 1-131.

Air samples were collected from six locations. The indicator locations sampled included 2, 18, 32, 37 and 49. A control location near the intersection of 20th Road and Yearling Road (location

53) was also sampled. Indicator sample locations are shown in Figure 1 and the control sample location is shown in Figure 5.

B. Direct Radiation Pathway

-optically stimulated luminescence (OSL) dosimeters were used continuously at 42 locations during the sample year to measure direct radiation. The OSLs were typically positioned roughly 3 to 4 feet above the ground in plastic thermostat boxes. Three OSLs were placed at each designated location. The OSLs were changed out quarterly and analyzed quarterly for gamma dose. Transit dose was measured and subtracted from the ambient dose. Indicator OSL sample locations are illustrated in Figure 2 and control sample locations are shown in Figure 5.

Control sample locations were 39 (Beto Junction) and 53 (near the intersection of 20th Road and Yearling Road).

C. Waterborne Pathway Gamma isotopic analysis was performed on the water samples. In addition to gamma isotopic analysis, analysis for 1-131 was performed monthly on drinking water and quarterly on ground water samples. Gross beta analysis was performed monthly on drinking water samples. Tritium analysis was performed monthly for surface water and quarterly for drinking water. Tritium analysis was also performed quarterly on ground water samples. Four surface water samples from the Coffey County Lake Spillway (SP) location and four surface water samples from the John Redmond Reservoir (JRR) location were also analyzed for Fe-55. The waterborne pathway sample locations are shown in Figures 3 and 5.

Monthly grab samples of surface water were collected from the John Redmond Reservoir (JRR) control location and from the Coffey County Lake Spillway (SP) indicator location.

Quarterly grab samples of ground water were collected from seven wells. Six locations-(C-10, C-49, F-1, G-2, J-1 and J-2) located hydrologically down gradient from the site were used as indicator sample locations. Location B-12 located hydrologically up gradient from the site was used as a control location.

Drinking water was sampled at the water treatment facilities in the towns of Iola (indicator sample location 10-DW) and Burlington (control sample location BW-15). The Iola facility is located downstream of the Neosho River-Wolf Creek confluence and the Burlington facility is located upstream of the Neosho River-Wolf Creek confluence. Composite samples were obtained monthly from automatic samplers at each location. The automatic drinking water samplers collected approximately 27 milliliters of water every two hours.

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~

Shoreline sediments were sampled semiannually. Gamma isotopic analyses were performed on the shoreline sediment samples. Shoreline sediment sample locations were *the Coffey County Lake discharge cove (DC) indicator location and the John Redmond Reservoir (JRR) control location.

D. Ingestion Pathway Milk was not collected during the sample year. The Land Use Census did not identifi any locations producing milk for human consumption within five miles of the plant.

Fish were sampled semiannually from the indicator sample location Coffey County Lake (CCL) and from the tail waters of John Redmond Reservoir (JRR) control sample location. These sample locations are identified in Figure 4. Gamma isotopic analyses were performed on the boneless meat portions of the fish. Several species of game fish and rough fish were sampled.

Fish were also analyzed for tritium.

Broadleaf vegetation samples were collected monthly when available during the growing season. Indicator (A-3, B-1, and H-2) location gardens (Figure 4) and a control (D-2) location garden (Figure 5) were sampled. Gamma isotopic analyses were performed on these samples.

Irrigated crop samples were obtained from indicator locations (NR-D1) and (NR-D2) downstream of the confluence of Wolf Creek and the Neosho River. Irrigated crops were also sampled from control location NR-U 1. Gamma isotopic analysis was performed on each sample. Crop sample locations are identified on Figure 5.

E. Additional Samples Collected (not required by AP 078-004)

Duplicate ground water grab samples were obtained quarterly from indicator location C-49 and were labeled L-49. These duplicate samples served as laboratory quality checks. Gamma isotopic analysis, 1-131 analysis and tritium analysis were performed on the ground water samples.

Bottom sediment samples were collected from indicator sample locations at the Discharge Cove (DC), Environmental Education Area (EEA), Essential Service Water (ESW) channel, Makeup Discharge Structure (MUDS), Stringtown Cemetery (SC), Ultimate Heat Sink (UHS), and the control sample location at John Redmond Reservoir (JRR). Gamma isotopic analyses were performed on the bottom sediment samples. Fourteen samples collected from indicator locations were also analyzed for Fe-55. Two samples collected from UHS indicator locations were also analyzed for Ni-63, Sr-89 and Sr-90 activity. Four bottom sediment samples were collected as part of a cooperative sampling effort with the Kansas Department of Health and Environment (KDHE). The sample locations are identified on Figure 3.

Aquatic vegetation was collected from indicator locations Environmental Education Area (EEA) and Makeup Discharge Structure (MUDS). Gamma isotopic analyses were performed on the aquatic vegetation samples. These samples were collected as part of a cooperative sampling effort with the KDHE. The sample locations are identified on Figure 3.

Terrestrial vegetation (grass) was sampled from the Environmental Education Area (EEA) indicator sample location. Gamma isotopic analysis was performed on the grass sample. This sample was. collected as part of a cooperative sampling effort with the KDHE. The sample location is identified on Figure 4.

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 3 of 32

Soil was sampled from the Environmental Education Area (EEA) indicator sample -location.

Gamma isotopic analysis was performed on the soil sample. This sample was collected as part of a cooperative sampling effort with the KDHE. The sample location is identified on Figure 4.

A deer was sampled from indicator sample location R2.0. Gamma isotopic analysis and tritium analysis was performed on the deer* sample. This sample was collected as part of a cooperative sampling effort with the KDHE. The sample location is identified on Figure 4.

II. DISCUSSION OF RESULTS Analysis results for pathways are summarized in Appendix B using the format described in Radiological Assessment Branch Technical Position, Revision 1, November 1979 (NRC Generic Letter 79-065). Results for individual samples are listed in Appendix C.

A. Airborne Pathway Chart 1 graphically illustrates weekly gross beta results for the sample year. _Chart 2 represents the gross beta historical airborne smoothed averages of indicator sample locations and control sample locations. Charts 1 and 2 demonstrate how closely the indicator and control sample locations tracked together. Chart 2 reveals a seasonal cyclic trend; the gross beta values peak in the winter months (December or January) and decrease to a low point in the spring months (May or June). This trend is expected and is attributed to seasonal meteorological changes, i.e., changes in prevailing winds and precipitation.

The gross beta results of 2016 were compared to pre-operational monitoring results of 1983 and 1984. The weekly gross beta analyses range for 1983 and 1984 was 0.0064 to 0.084 pCi/m 3 .

The 2016 weekly gross beta ;analyses range for indicator locations was 0.009 to 0.056 pCi/m 3 .

The 2016 weekly gross beta analyses range was within the 1983 and 1984 pre-operational range. Additionally, the annual mean for indicator locations for 2016 (0.025 pCi/m 3 ) was lower than the annual mean for 1983 (0.032 pCi/m 3 ).

The gross beta results for the indicator locations were also compared to the control location.

The annual mean for indicator locations for 2016 (0!.025 pCi/m 3 ) was the same as the annual mean of the control location (0.025 pCi/m 3 ). The indicator location with the highest gross beta annual mean was location 37 (0.026 pCi/m 3 ) and was slightly higher than the annual mean of the control location (0.025 pCi/ni 3 ).

Naturally occurring Be-7 activity was* detected, as was the case during pre-operational monitoring. In 1984, the range for Be-7 detected activity was 0.024 to 0.211 pCi/m 3 for indicator locations and the annual mean for indicator locations was 0.069 pCi/m 3 . In 2016, the range for Be-7 detected activity was 0.065 to 0.107 pCi/m 3 for indicator locations and the annual mean for indicator locations was 0.081 pCi/m 3 . The control location annual mean for Be-7 detected activity (0.083 pCi/m 3 ) was slightly higher than the annual mean of the indicator locations (0.081 pCi/m 3} The in~icator location with the highest annual mean of detected Be-7 activity (0.084 pCi/ m ) was location 32.

1-131 activity was not detected in the weekly analysis of radioiodine canisters at any location.

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The AP 078-004 required lower limits of detection were met. Plant-related activation, corrosion, or fission products were not detected during 2016 in air particulate filters and radioiodine canisters. No unusual trends were noted.

B. Direct Radiation Pathway Quarterly OSL dosimeter results for each location are shown in Table 3. Measured values have been converted to a standardized 90-day quarter.

The annual mean of indicator sample locations. in 2016 was 18.1 mR per standardized 90-day quarter. The annual mean of the control sample locations in 2016 was 18. 7 mR per standardized 90-day quarter.

For pre-operational comparison, in 1981, the annual mean of indicator sample locations was 18.9 mR per standardized 90-day quarter and the annual mean for the control sample locations was. 17.1 mR per standardized 90-day quarter. It should be noted WCGS changed from thermoluminescence dosimeters (TLD) to optically stimulated luminescence (OSL) dosimeters in 2008.

The indicator sample location with the highest annual mean was location 38 (21.1 mR per standardized_ 90-day quarter) which is slightly higher than the annual mean of the control sample locations (18.7 mR per standardized 90-day quarter).

Based upon Condition Report 00027489, improvements were made in measuring and subtracting transit dose in 2010. As expected, the OSL results have increased since 2010.

Chart 3 visibly displays the increase of the OSL results. Chart 3 also displays how closely the indicator and control location OSL dosimeter results are for 2016.

Chart 4 displays the TLD nearsite sample locations (1, 2, 7-9, 11-.14, 18, 26, 27, 29, 30, 37 and

38) and the control sample locations (locations 39 and 48) for the preoperational years through 2007.

C. Waterborne Pathway (1) Surface Water Tritium, attributable to WCGS operation, was detected in surface water samples collected from the Coffey County Lake spillway (SP) indicator sample location. The annual mean for detected tritium activity at the SP location was 10,461 pCi/L and the range was 7,971 to 12,300 pCi/L.

The detected tritium activity was below the 30,000 pCi/L AP 078-004 reporting level. Chart 5 illustrates the yearly averages of surface water tritium data for the SP location. Chart 5 indicates the average tritium concentration of the SP location has reached equilibrium. Tritium activity was not detected in samples obtained from the control sample location John Redmond Reservoir (JRR).

During pre-operational radiological environmental monitoring, measured radiological activity was not detected in surface water samples.

The AP 078-004 required lower limits of detection were met. Radionuclides were not detected by the gamma isotopic analyses or by Fe-55 analyses.

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Tritium was the only activity detected during 2016 in surface water samples and no unusual trends were noted.

(2) Ground Water The AP 078-004 required lower limits of detection were met for 1-131, tritium and gamma isotopic analyses. Radioactivity was not detected in any ground water samples. No unusual trends were noted. Plant-related activation, corrosion or fission products were not detected during 2016 in ground water samples.

(3) Drinking Water Gross beta activity was detected in drinking water samples collected from the indicator sample location and in samples collected from the control sample location. The annual mean of the indicator sample location gross beta activity (2.9 pCi/L) was slightly higher when compared to the annual mean of the control sample location gross beta activity (2. 7 pCi/L). The 2016 annual means of gross beta activity for both the indicator and control sample locations were lower than those of the pre-operational monitoring year of 1984. In 1984, the annual mean of the indicator sample location gross beta activity was 7.5 pCi/L and the annual mean of the control sample location gross beta activity was 6.4 pCi/L.

Chart 6 illustrates the drinking water gross beta results for the last five years and how closely the gross beta results compared for the indicator and control sample locations.

Tritium activity (228 pCi/L) was detected in the second quarter of 2016 at the indicator location.

The detected tritium activity was well below the 20,000 pCi/L AP 078-004 reporting level.

Condition Report 00106475 concluded due to low Neosho River flows, coupled with wave overlap discharges from Coffey County Lake, Coffey County Lake was a plausible source.

Tritium activity was not detected in "2016 at the control location. In 1984 (pre-operational),

tritium activity was not detected in any drinking water samples.

The AP* 078-004 required lower limits of detection were met. Radionuclides were not detected by the 1-131 or gamma isotopic analyses. No unusual trends were noted.

(4) Shoreline Sediment Naturally occurring K-40 was detected in shoreline sediment samples collected from the DC

(indicator sample location) and JRR (control sample location). K-40 was also detected during pre-operational shoreline sediment monitoring.

Cs-137 activity (120.1 and 199.8 pCi/kg, dry) was detected in the two shoreline sediment samples collected from the DC indicator location. Cs-137 activity (112.9 pCi/kg, dry) was also detected in one of the shoreline sediment *samples collected from the JRR control sample location.

Cs-137 activity was detected in pre-operational shoreline sediment samples. Cs-137 activity detected in shoreline sediment samples collected from the DC location from 1982 to 1984 was in the range of 224 to 437 pCi/kg. The decay corrected range of pre-operational Cs-137 activity detected is approximately 108 to 205 pCi/kg. The detected Cs-137 activity in the shoreline sediment samples collected from the DC indi~ator location was likely due. to fallout since Cs-134 activity was not detected, which would be expected if the occurrence of Cs-137 was attributed to 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 6 of 32

a newly produced fission product, since Cs-137 activity was also detected at the JRR control sample location and since the detected Cs-137 activity was within the decay corrected pre-operational range.

No other radionuclides were detected in the DC or JRR shoreline sediment samples during 2016. The AP 078-004 required lower limits of detection were met. Plant-related activation, corrosion, or fission products were not detected during 2016 in shoreline sediment samples and no unusual trends were noted.

D. Ingestion Pathway (1) Milk Milk was not collected during the sample year since no indicator locations within five miles of the plant were identified during the Land Use Census.

(2) Fish Naturally occurring K-40 activity was detected in fish samples obtained from the Coffey County Lake (CCL) indicator sample location and in fish samples obtained from the JRR control sample location. K-40 activity was also detected during pre-operational fish monitoring.

Fish samples were also analyzed for tritium. Fish samples collected from Coffey County Lake had tritium activity detected (7,274 pCi/kg annual mean). The detected tritium activity was attributable to plant operation. An adult consuming 21 kilograms of fish, at the maximum measured tritium concentration (8,243 pCi/kg), would receive a committed effective dose equivalent of 0.011 mRem.

Tritium activity was not detected in the control location samples collected from JRR.

No other radionuclides were detected in fish samples during 2016. The AP 078-004 required lower limits of detection were met and no unusual trends were noted.

(3) Broadleaf Vegetation Gamma analyses of broadleaf vegetation samples obtained from indicator and control sample locations detected naturally occurring 8e-7 and K-40. 8e-7 and K-40 activity were also detected pre-operationally.

No other radionuelides were detected in broad leaf vegetation samples collected during the year.

The AP 078-004 required lower limits of detection were met Plant-related activation, corrosion, or fission products were not detected during 2016 in broadleaf vegetation samples and no unusual trends were noted.

(4) Crop Samples Gamma analysis detected naturally occurring K-40 activity to be present in the samples collected from the indicator sample locations -and in the samples collected from the control sample location. K-40 activity was also detected during pre-operational crop monitoring. K-40 was the only activity detected in the crop samples.

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The AP 078-004 required lower limits of detection were met. Plant-related activation, corrosion, or fission products were not detected during 2016 in crop samples and no unusual trends were noted.

E. Additional Samples Collected (not required by AP 078-004)

(1) Bottom Sediment

(

Gamma analysis detected naturally occurring K-40 activity to be present in the samples collected from the indicator sample locations and in the samples collected from the control sample location. K-40 activity was also detected during pre-operational bottom sediment monitoring.

Cs-137 activity was detected in two samples obtained from indicator locations (range 72.6 to 85.7 pCi/kg, dry). Cs-137 activity was also detected in a sample obtained from the control sample location (138.0 pCi/kg, dry).

Cs-137 activity was detected in pre-operational samples. The Cs-137 activity detected in 2016 indicator sample location bottom sediment samples was within the pre-operational range.

(Cs-137 activity detected in 1981 and 1982 was in the range of 79 to 953 pCi/kg. The decay corrected range of pre-operational Cs-137 activity detected is approximately 35 to 426 pCi/kg.)

The detected Cs-137 activity in the samples collected from the indicator sample locations was likely due to fallout since the measured activity is within the decay corrected range of pre-operational Cs-137 detected activity. Additionally, Cs-137 activity was also detected in a sample obtained from the JRR control location (138 pCi/kg, dry).

Chart 7 plots the Cs-137 detected activity from the discharge cove indicator sample location and JRR control sample location bottom sediment samples. The detected Cs-137 activity measured from the discharge cove location reflects a decreasing trend. The. Chart 7 trend line indicates Cs-137 activity detected at the JRR control location has also been decreasing. Chart 7 also displays that in recent years, the detected Cs-137 activity for the JRR and DC sample locations overlap.

Fe-55 activity was not detected in the fourteen samples obtained from indicator sample locations.

Analysis for the Hard~to-Detect radionuclides was performed on two. indicator location samples.

Sr-90 activity (55.5 pCi/kg, dry) was detected in one bottom sediment sample collected from the Ultimate Heat Sink (UHS) area.

Sr-90 activity was detected in pre-operational soil samples. (Sr-90 activity detected in February 1985 soil samples was in the range of 85 to 380 pCi/kg. The decay corrected range of pre-operational Sr-90 activity detected is approximately 40 to 179 pCi/kg.) The detected Sr-90 activity in the bottom sediment collected from the UHS indicator sample location is likely due to fallout since the activity is within the decay corrected pre-operational range.

No other radionuclides were detected in bottom sediment samples. Plant-related activation, corrosion, or fission products were not detected during 2016 in bottom sediment samples and no unusual trends were noted.

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(2) Aquatic Vegetation Gamma analyses of aquatic vegetation samples obtained from indicator sample locations detected naturally occurring Be-7 and K-40. Be-7 and K-40 activity were also detected during pre-operational monitoring.

No other radionuclides were detected in aquatic vegetation samples. Plant-related activation, corrosion, or fission products were not detected during 2016 in aquatic vegetation samples and no unusual trends were noted.

(3) Shoreline Sediment Naturally occurring K-40 was detected in the shoreline sediment samples collected from the EEA indicator sample location. K-40 was also detected during pre-operational shoreline sediment monitoring.

Cs-137 activity (96.9 and 270.8 pCi/kg, dry) was detected in the two shoreline sediment samples collected from the EEA indicator location. Cs-137 activity (112.9 pCi/kg) was also detected in one of the shoreline sediment samples collected from the JRR control sample location.

Cs-137 activity was detected in pre-operational shoreline sediment samples. Cs-137 activity detected in shoreline sediment samples collected from the DC location from 1982 to 1984 was in the range of 224 to 437 pCi/kg. The decay corrected range of pre-operational Cs-137 activity detected is approximately 108 to 205 pCi/kg. The detected Cs-137 activity in the sporeline sediment samples collected from the EEA indicator location was likely due to fallout since Cs-134 activity was not detected, which would be expected if the occurrence of Cs-137 was attributed to a newly produced fission product, and since Cs-137 activity was also detected at the JRR control sample location.

No other radionuclides were detected in the EEA shoreline sediment samples during 2016.

Plant-related activation, corrosion, or fission products were not detected during 2016 and no unusual trends were noted.

(4) Terrestrial Vegetation Naturally occurring Be-7 and K-40 activity was detected in the terrestrial vegetation indicator location sample. No other radionuclides were detected in terrestrial vegetation. Plant-related activation, corrosion or fission products were not detected during 2016 in terrestrial vegetation and no unusual trends were noted.

(5) Soil Naturally occurring K-40 activity was detected in the soil sample obtained from the EEA indicator location. K-40 activity was also detected during pre-operational soil monitoring.

Cs-137 activity was detected in the soil sample obtained from the EEA indicator location. Data was reviewed for soil samples collected pre-operationally. The detected Cs-137 activity range from February of 1985 was 255 to 2, 160 pCi/kg. The decay corrected range of pre-operational Cs-137 activity detected in soil is approximately 124 to 1,053 pCi/kg. The detected Cs-137 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 9 of 32

activity in soil sampled in 2016 (99.5 pCi/kg, dry) is below the decay corrected pre-operational range and is likely due to fallout.

Plant-related activation, corrosion, or fission products were not detected during 2016 in soil samples and no unusual trends were noted.

(6) Deer Naturally occurring K-40 activity was detected in the deer sample obtained from the indicator location.

Tritium activity (169 pCi/kg) was also detected in the deer sample. The detected tritium activity was attributable to plant operation.

An adult consuming 72.6 kilograms of deer meat, ~t the measured tritium concentration (169 pCi/kg), would receive acommitted effective dose equivalent of 0.001 mRem.

No other radionuclides were detected in the deer sample. No unusual trends were identified.

Ill. PROGRAM REVISIONS/CHANGES No revisions or changes were made to AP 078-004, Offsite Dose Calculation Manual (Radiological Environmental Monitoring Program) during 2016.

IV. PROGRAM DEVIATIONS

Air Samples The following air sample locations failed to meet the requirement for "continuous sampler operation." As described in footnote (1) of procedure AP 078-004, Offsite Dose Calculation Manual (Radiological Environmental Monitoring Program), Table 5-1, deviations are permitted from the required sampling schedule due to malfunction of sampling equipment and other legitimate reasons. Discrepancies greater than five percent between Total Military Time and Total Digital Flow Meter Time, which resulted in a loss of air sample collected, are listed in the following table.

Location Sample Period Percent Explanation of Deviation/Comments Dis.crepancy/ Condition Report Number Hours Unavailable 53 04/25/16 - 05/03/16 10 I 20 Power Outage I Condition Report 00104353 49 06/29/16 - 07/05/16 6.5 / 9 Power Outage I Condition Report 00105612 37 09/06/16 - 09/12/16 7.7 / 11 Power Outage I Condition Report 00107073 Drinking Water Samples Drinking water was not continuously collected at the Burlington control sample location during the 04-04-16 to 05-04-16 sample period since the sampler intake bay was empty due to water 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 10 of 32

treatment plant maintenance. It was estimated that water was not sampled for approximately seven days during the sample period. Sufficient water was collected for the monthly composite sample. Condition Report 00104401 was generated to document the condition.

Ground Water Protection The following information is being provided in association with the Nuclear Energy Institute (NEI) Groundwater Protection Industry Initiative:

Describe offsite ground water or surface water sample results that exceeded the REMP reporting criteria that were voluntarily communicated to State/Local officials during the calendar year- None.

V .. INTERLABORATORY COMPARISON PROGRAM Environmental, Inc., Midwest Laboratory was contracted to perform radiological analysis of environmental samples for WCNOC. The lab participated in the intercomparison studies administered by Environmental Resources Associates. Appendix A is the lnterlaboratory Comparison Program Results for Environmental, Inc., Midwest Laboratory. lntercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also contained in Appendix A.

VI. COMPARISON TO THE RADIOACTIVE EFFLUENT RELEASE PROGRAM As described in the section discussing radioisotopes found in fish from Coffey County Lake, dose that may be received as a result of tritium released from WCGS is comparable with the theoretical doses calculated by the Radioactive Effluent Release Program.

The theoretical doses calculated by the Radioactive Effluent Release Program assume a person drinks the water from Coffey County Lake and eats the fish from Coffey County Lake. Based upon these assumptions the dose to man from both pathways was calculated to be

. 0.177 mRem for 2016.

Using sample data obtained from the REMP, an adult drinking 2 liters per day of surface water from Coffey County Lake, using the average tritium activity (10,461 pCi/L), would receive a committed effective dose equivalent of 0.478 mRem per year. For an adult eating 21 kg of fish per year from Coffey County Lake, using the average tritium activity (7,274 pCi/kg), would receive a committed effective dose equivalent of 0.010 mRem per year. Based upon the REMP results, the dose from both pathways was calculated to be 0.488 mRem per year.

It should be noted Coffey County Lake is not used as a drinking water source. Calcula.ting the dose to man for tritium detected in the Coffey County Lake surface water is for comparison purposes only.

The tritium dose values are being compared on a qualitative basis. It is not expected that the annual doses, as calculated in the Radioactive Effluent Release Report, would compare directly to those calculated from the REMP. The Radioactive Effluent Release Report provides a "snap shot" of potential dose resulting from the year's releases. The REMP data indicates the accumulated result of releasing tritium into the lake since the start of plant operation.

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TABLE 1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DESCRIPTION (SAMPLE COLLECTION SPECIFIED BY AP 07B-004)

EXPOSURE NUMBER OF SAMPLE COLLECTION TYPE AND PATHWAY/ SAMPLES AND FREQUENCY FREQUENCY OF SAMPLE TYPE SAMPLE LOCATIONS ANALYSIS AIRBORNE (See Figures 1 & 5)

Radioiodine and Samples from six Continuous sampler Analyze radioiodine Particulates locations operation with sample canister weekly for collection weekly, or more 1-131 frequently if required, by dust loading.

Samples from locations Analyze particulate near the site boundary filter weekly for in three sectors having gross beta acti~ity; the highest calculated perform quarterly annual average D/Q gamma isotopic and one supplemental analysis composite location (Locations 2, (by location) 18, 37, or 49 on Figure 1)

Sample from the vicinity of a community having the highest calculated annual average D/Q (Location 32 on Figure 1, New Strawn)

Sample from a control location 9.5 to 18.5 miles distant in a low ranked D/Q sector (Location 53 on Figure 5) 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 12 of 32

TABLE 1 (Cont.)

EXPOSURE NUMBER OF SAMPLE COLLECTION TYPE AND PATHWAY/ SAMPLES AND FREQUENCY FREQUENCY OF SAMPLE TYPE SAMPLE LOCATIONS ANALYSIS DIRECT (See Figures 2 & 5)

RADIATION 39 routine monitoring Quarterly Gamma dose stations with two or quarterly more dosimeters measuring dose continuously, placed as follows:

An inner ring of stations, one in each meteorological sector 0-3 mile range from the site (Locations 1, 7, 9, 11-13, 18,26,27,29, 30, 37, 38, 46, & 49 on Figure 2).

An outer ring of stations, one in each meteorological sector in the 3 to 5 mile range from the site (Locations 4, 5, 15-17, 19, 22-25, 32, 34-36, 50 & 51 on Figure 2). Four sectors

[A, B, G & J] contain an additional station (Locations 2, 8, 14 &

20).

The balance of the stations to be placed in special interest areas such as population centers (Locations 23, 32 & 52), nearby residences 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 13 of 32

TABLE 1 (Cont.)

EXPOSURE NUMBER OF SAMPLE COLLECTION TYPE AND PATHWAY/ SAMPLES AND FREQUENCY FREQUENCY OF SAMPLE TYPE SAMPLE LOCATIONS ANALYSIS DIRECT )

RADIATION (cont.)

(many locations are near a residence),

schools (Locations 23

& 52), Wilson Cadman Wildlife Education Area (44 ), CCL Public Fishing Area (46) and in two areas to serve as control stations 10-20 miles distant from the site (Locations 39 and 53 on Figure 5).

WATERBORNE (See Figure 3)

Surface One sample upstream Monthly grab sample Monthly gamma (Location JRR on isotopic analysis and Figure 3) and one composite for tritium sample downstream . analysis quarterly (Location SP on Figure 3). l Ground Samples from one or Quarterly grab sample Quarterly gamma two sources only if isotopic analysis and

. likely to be affected. tritium analysis Indicator samples at locations hydrologically down-gradient of the site (Locations C-10, 1 C-49, F-1, G-2, J-1 and J-2 on Figure 3);

control sample at a location hydrologically upgradient of the site (Location B-12 on Figure 3).

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 14 of 32

TABLE 1 (Cont.)

EXPOSURE NUMBER OF SAMPLE COLLECTION TYPE AND PATHWAY/ SAMPLES AND FREQUENCY FREQUENCY OF SAMPLE TYPE SAMPLE LOCATIONS ANALYSIS WATERBORNE (cont.)

Drinking Sample of municipal Monthly Composite Monthly gamma water supply at an isotopic analysis and indicator location gross beta analysis downstream of the of composite Neosho River-Wolf sample. Quarterly Creek confluence tritium analysis of (Location 10-DW on composites.

Figure 5); control sample from location upstream of the Neosho River-Wolf Creek confluence (Location BW-15 on Figure 3).

Shoreline One sample from the >Semiannually Semiannual gamma Sediment vicinity of Coffey isotopic analysis County Lake discharge cove (Location DC on Figure 3); control sample from John Redmond Reservoir (Location JRR on Figure 3).

INGESTION (See Figures 4 & 5)

Milk Samples from milking Semimonthly April to Gamma isotopic animals at three November; monthly analysis and 1-131 indicator locations December-March analysis *of each within 5 miles of the sample site having the highest dose potential (currently there are no locations producing milk for human consumption within 5 miles of the site); one sample from a control location greater than 10 miles from the site if indicator locations are sampled.

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 15 of 32

TABLE 1 (Cont.)

EXPOSURE NUMBER OF SAMPLE COLLECTION TYPE AND PATHWAY/ SAMPLES AND FREQUENCY FREQUENCY OF SAMPLE TYPE SAMPLE LOCATIONS ANALYSIS INGESTION (cont.)

Fish Indicator samples of 1 Semiannually Gamma isotopic to 3 recreationally. analysis on edible important species from portions Coffey County Lake; control samples of similar species from John Redmond Reservoir spillway c; (Figure 4).

~

\ Broad leaf Samples of available Monthly when available Gamma isotopic Vegetation broadleaf vegetation analysis on edible from two indicator portions locations (using the criteria from the "Land Use Census" section) with highest calculated annual average O/Q (Locations A-3 and Q-6 and alternate locations B-1, H-2, N-1 and R-2 on Figure 4 ); sample of similar broadleaf vegetation from a control location 9.5 to 18.5 miles distant in a low ranked O/Q sector (Location 0-2 on Figure 5).

Irrigated Crops Sample of crops At time of harvest Gamma isotopic irrigated with water analysis on edible from the Neosho River portions downstream of the Neosho River -Wolf Creek confluence (locations will vary from year to year, e.g.,

Location NR-01 and NR-02 on Figure 5).

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 16 of 32

TABLE 2 SAMPLE LOCATION IDENTIFIERS, DISTANCES (Miles) AND DIRECTIONS (Sectors)

Sample Type Location Identifier Distance from Reactor

\ ,pirection

' -- . -- Sector Air Particulates and Radioiodine 2 2.7 N A 18 3.0 SSE H 32 3.1 WNW p 37 2.0 NNW R 49 0.8 NNE B 53 10.8 ENE D Dosimeters 1 1.4 N A 2 2.7 N A 4 4.0 NNE B 5 4.1 NE c 7 2.1 NE c 8 1.7 NNE B 9 2.0 ENE D 11 1.7 E E 12 1.9 ESE F 13 1.6 SE G 14 2.5 SE G 15 4.6 ESE F 16 4.3 E E 17 3.7 SE G 18 3.0 SSE H 19 3.9 SSE H 20 3.3 s J 22 3.9 SSW K 23 4.3 SW L 24 4.1. WSW M 25 3.4 w N 26 2.4 WSW M 27 2.2 SW L 29 2.7 SSW K 30 2.5 w N 32 3.1 WNW p 34 4.4 NW Q 35 4.6 NNW R 36 4.2 N A 37 2.0 NNW R 38 1.2 NW Q 39 13.1 N A 41 0.8 NNW R 42 0.8 SSE H 43 0.7 . WNW p 44 3.0 NNW R 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 17 of 32

TABLE 2 (Cont.)

SAMPLE LOCATION IDENTIFIERS, DISTANCES (Miles) AND DIRECTIONS (Sectors)

Sample Type Location Distance from Direction Sector Identifier Reactor Dosimeters 46 1.6 WNW p 49 0.8 NNE B 50 3.6 ENE D 51 4.3 s J 52 3.6 SW L 53 10.8 ENE D Surface Water JRR 3.7 w N SP 3.2 SSE H Ground Water B-12 1.9 NNE B C-10 2.7 w N C-49/L-49 2.8 SW L F-1 2.5 ESE F G-2 3.6 SE G J-1 3.8 s J J-2 4.3 s J

\

Drinkinq Water BW-15 3.9 SW L 10-DW 26.1 SSE H Shoreline Sediment DC 0.8 WNW p EEA 3.0 NNW R JRR 3.6 w N Fish CCL 0.6 E to NNW E to R JRR 3.7 w N Food/Garden A-3 2.6 N A B-1 0.8 NNE B D-2 14.8 ENE D H-2 3.0 SSE H Crops NR-D1 8.9 s J NR-D2 11.5 s J NR-U1 4.0 SSW K Bottom Sediment DC 0.9 WNW p EEA 3.0 NNW R ESW 0.5 E E JRR 3.7 w N MUDS 1.5 WNW p SC 0.8 NNW R UHS 0.6 E E Aquatic VeQetation EEA 3.0 NNW R

- 1.5 WNW p MUDS 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 18 of 32

TABLE 2 (Cont.)

SAMPLE LOCATION IDENTIFIERS, DISTANCES (Miles) AND DIRECTIONS (Sectors)

Sample Type Location Distance from Direction Sector Identifier Reactor I Terrestrial Vegetation EEA 3.0 NNW R Soil EEA 3.0 NNW R Meat (Deer) R2.0 1.0 NW Q 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 19 of 32

TABLE 3 OSL Dosimeter Results Location Qtr.1 Qtr. 2 Qtr. 3 Qtr. 4 Total Annual

{mR) (mR) (mR) CmR) Exposure (mR) 1 21.8 18.3 19.4 16.5 76.0 2 17.6 17.4 18.3 18.0. 71.3 4 20.4 20.4 19.7 21.0 81.5 5 16.4 17.3 16.7 18.5 68.9 7 18.2 16.5 18.2 17.0 69.9 8 20.2 20.1 18.7 22.5 81.5 9 15.9 17.6 14.7 14.6 62.8 11 18.7 19.0 18.2 21.5 77.4 12 18.8 19.5 19.2 17.5 75.0 13 19.3 19.5 18.1 21.5 78.4 14 20.3 19.0 17.2 19.5 76.0 15 17.4 18.1 17.2 20.5 73.2 16 18.3 16.7 16.7 20.5 72.2 17 18.8 16.7 16.7 16.5 68.7 18 17.4 20.9 16.7 17.0 72.0 19 19.3 19.3 21.9 21.0 81.5 20 18$ 19.8 17.5 19.5 75.6 22 20.8 20.6 17.5 21.1 80.0 23 18.1 . 18.6 16.9 19.5 73.1 24 20.9 18.1 17.9 19.8 76.7 25 14.6 14.3 15.9 15.6 60.4 26 17.4 15.7 16.5 16.9 66.5 27 18.6 16.9 19.4 19.3 74.2 29 15.9 15.7 13.3 16.9 61.8 30 20.4 17.8 16.0 19.3 73.5 32 16.6 17.5 15.9 17.8 67.8 34 19.4 21.0 18.2 20.0 78.6 35 20.0 17.3 17.7 20.5 75.5 36 16.4 17.2 18.1 21.0 72.7 37 15.6 18.2 17.4 17.5 68.7 38 20.6 20.0 21.9 22.0 84.5 39 16.4 18.1 17.1 17.0 68.6 41 16.1 17.4 18.1 17.0 68.6 42 13.1 11.8 11.8 11.6 48.3 43 10.5 11.7 11.8 13.7 47.7 44 19.1 20.0 17.9 19.0 76.0 46 1"7.6 18.2 17.9 19.6 73.3 49 15.4 15.8 17.9 14.0 63.1 50 20.4 19.8 19.7 22.0 ~

81,9 51 19.8 19.0 19.9 17.5 76.2 52 18.9 20.9 17.9 20.3 78.0 53 19.7 19.0 21.1 21.5 81.3 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 20 of 32

FIGURE 1 Q c D

N E AIRBORNE PATHWAY SAMPLING LOCATIONS

= AIRBORNE PARTICULATE AND RADIOIODINE 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 21 of 32

FIGURE2 Q c D

N E DIRECT RADIATION PATHWAY SAMPLING LOCATIONS e = DOSIMETER LOCATIONS 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 22 of 32

FIGURE 3 Q c D

N E WATERBORNE PATHWAY SAMPLING LOCATIONS e = DRINKING WATER A = SURFACE WATER

= GROUND WATER e = SHORELINE SEDIMENT

~ = BOTTOM SEDIMENT ~ =AQUATIC VEGETATION 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 23 of 32

FIGURE4 Q c D

N E INGESTION PATHWAY SAMPLING LOCATIONS

£. = FISH (JRR) * = BROADLEAF VEGETATION *= SOIL

~FISH (CCL) l~I= TERRESTRIAL VEGETATION rf =DEER 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 24 of 32

FIGURE 5 A

E G*

K J

DISTANT SAMPUNG LOCA

= Dosimeter

= AIRBORNE PARTICULATE &. RADIOIODINE 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 25 of 32

CHART 1 2016 Airborne Gross Beta Weekly Results 0.070 0.060 0.050 *

0 Q)

Q)

E

(.)

J

--0-So

(.)

0.040 0.030

+v

'\ +

Q)

CJ rn I +

en 0.020 en 0 ++1* + +

(!)

0.010 0.000 0 4 8 12 16 20 24 28 32 36 40 44 48 52 Week Number

Location 2

Location 18 + Location 32 .A. Location 37

Location 49 _.._Location 53 (Control) 2016 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 26 of 32

CHART2

..... Historical Airborne Smoothed (Avg. of 20) Indicator and Control Gross Beta Q)

Q)

E

- u Chernobyl accident

.a:::I 0.050

!2 G

a.

c ro Q) 0.040 Ill

(/)

(9 e

0 C\I I

'Q 0.030 '

"O Q)

..c

~ 0.020 CJ)

- - - - Smoothed Avg. Indicator Locations - - Smoothed Avg. Control Locations 2016 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 27 of 32

CHART3 OSL Dosimeters - Indicator and Control Locations mR per Standardized 90-Day Quarter 25.0 .----------------~~~~~~-~~~~~~~----~~~~~~--~---,

OSL Transit Dose methodology was changed in 2010 23 .0 based upon Condition Report 00027489.

21.0 19.0 17.0 c:::

E 15.0 13.0 11.0 9.0 Year/Quarter

-+--Indicator Locations Standardized 90-Day Quarter (mR) -control Locations Standardized 90-Day Quarter (mR) 2016 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 28 of 32

CHART4 Historical TLD Nearsite Locations and Control Locations 32.0 30.0 Elevated results due to 28.0 unusually longer exposure 26.0 24.0 c:r:: 22.0 E

20.0 18.0 I I l:J,.

16.0 ~ b.

14.0 12.0 _..,_____......,__.....,____.....,.____,._.__--+____-+-____-+-_____,____.....,.____- i -____..,_____,,____-+-____

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006

Avg. of Nearsite Locations b. Avg. of Control Locations

- Moving Avg. of Nearsite Locations (2 period) ----Moving Avg. of Control Locations (2 period) 2016 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 29 of 32

CHARTS Coffey County Lake Surface Water Tritium Data 14,000 12,000 10,000 2

~ 8,000 0c.

6,000 R2 = 0.8772 4,000 2,000 0 --~~~~~~-.-~~~~~~-.-~~~~~~.....,......~~~~~~.....,......~~--.-~~~--.-~~~~---'

1987 1992 1997 2002 2007 2012

-+-Yearly Average of Spillway Location -Polynomial Trendline 2016 An_nual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 30 of 32

N 0

(j)

)> Gross Beta (in pCi/liter)

J

J _... w c

Ol 1/3/2012

0 Ol 3/5/2012 a.

5*

0 5/7/2012 .......

cc c=;*

Ol 7/2/2012 --

m

J 9/4/2012

5.

0 11/5/2012

J 3 1/7/2013 CD

J Ol 3/5/2013 0 5/6/2013

-0 '----

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0 ........ 0 CD OJ ~ :::!.

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........ Ol 11/3/2014 Ol

...... -01 s* I 1/5/2015 cc CD en 0 Ol

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-0 11/8/2016 Ol cc CD w

0 w

N

CHART7 Detected Cs-137 Activity in Bottom Sediment 1,000 900 800 700

600 i::'

"O I*

~

Ol

()

500 j * ** * ** **

0. 400 -,__ * *

300

~ . ~* .~ *

~

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. --------.!!lo____.-=.----------

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* * * . - -.-.,,____._ . . -II 100 I

0 ..-- 1 I I I I I N '<:f" (j) 0 N ('I') l{) (j) 0 N ('I') '<:f" l{) c.o 00 (j) ..-- N '<:f" l{)

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('I') 0 (j) (j) c.o (j) (j)

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c.o 0

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N c.o 0

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DC Cs-137

JRR Cs-137 - Polynomial Trendline (DC) *--*- Polynomial Trendline (JRR) 2016 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 32 of 32

~*'All Environmental, Inc.

~+1' /'"\.I Midwest Laboratory 700 Landwehr Road

Northbrook, IL 60062-2310 phone (847) 564-0700 *fax (847) 564-4517 APPENDIX A INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE: Environmental Inc., Midwest Laboratory participates in intercomparison studies administered by Environmental Resources Associates, and serves as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. Results are reported in Appendix A. TLD lntercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also reported. Appendix A is updated four times a year; the complete Appendix is included in March, June, September and December monthly progress reports only.

January, 2016 through December, 2016

Appendix A lnterlaboratory Comparison Program Results Environmental, Inc., Midwest Laboratory has participated in interlaboratory comparison (crosscheck) programs since the formulation of it's quality control program in December 1971. These programs are operated by agencies which supply environmental type samples containing concentrations of radionuclides known to the issuing agency but not to participant laboratories. The purpose of such a program is to provide an independent check on a laboratory's analytical procedures and to alert it of any possible problems.

Participant laboratories measure the concentration of specified radionuclides and report them to the issuing agency. Several months later, the agency reports the known values to the participant laboratories and specifies control limits. Results consistently higher or lower than the known values or outside the control limits indicate a need to check the instruments or procedures used.

Results in Table A-1 were obtained through participation in the RAD PT Study Proficiency Testing Program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada.

Table A-2 lists results for thermoluminescent dosimeters (TLDs), via irradiation and evaluation by the University of Wisconsin-Madison Radiation Calibration Laboratory at the University of Wisconsin Medical Radiation Research Center.

Table A-3 lists results of the analyses on in-house "spiked" samples for the past twelve months. All samples are prepared using NIST traceable sources. Data for previous years available upon request.

Table A-4 lists results of the analyses on in-house "blank" samples for the past twelve months. Data for previous years available upon request.

Table A-5 lists REMP specific analytical results from the in-house "duplicate" program for the past twelve months. Acceptance is based on the difference of the results being less than the sum of the errors.

Complete analytical data for duplicate analyses is available upon request.

The results in Table A-6 were obtained through participation in the Mixed Analyte Performance Evaluation Program.

Results in Table A-7 were obtained through participation in the MRAD PT Study Proficiency Testing Program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurement Laboratory Quality Assessment Program (EML).

Attachment A lists the laboratory precision at the 1 sigma level for various analyses. The acceptance criteria in Table A-3 is set at +/- 2 sigma.

Out-of-limit results are explained directly below the result.

A1

Attachment A ACCEPTANCE CRITERIA FOR "SPIKED" SAMPLES LABORATORY PRECISION: ONE STANDARD DEVIATION VALUES FOR VARIOUS ANALYSESa One standard deviation Analysis Level for single determination Gamma Emitters 5 to 100 pCi/liter or kg 5.0 pCi/liter

> 100 pCi/liter or kg 5% of known value Strontium-89b ~ 5 to 50 pCi/liter or kg 5.0 pCi/liter

> 50 pCi/liter or kg 10% of known value Strontium-90b 2 to 30 pCi/liter or kg 5.0 pCi/liter

> 30 pCi/liter or kg 10% of known value Potassium-40 ~ 0.1 g/liter or kg 5% of known value Gross alpha s 20 pCi/liter 5.0 pCi/liter

> 20 pCi/liter 25% of known value Gross beta s 100 pCi/liter 5.0 pCi/liter

> 100 pCi/liter 5% of known value Tritium s 4,000 pCi/liter +/- 1cr =

0 0933 169.85 x (known) *

> 4,000 pCi/liter 10% of known value Radium-226,-228 ~ 0.1 pCi/liter 15% of. known value Plutonium ~ 0.1 pCi/liter, gram, or sample 10% of known value lodine-131, s 55 pCi/liter 6 pCi/liter lodine-129b > 55 pCi/liter 10% of known value Uranium-238, s 35 pCi/liter 6 pCi/liter Nickel-63b > 35 pCi/liter 15% of known value Technetium-99b lron-55b 50 to 100 pCi/liter 10 pCi/liter

> 100 pCi/liter 10% of known value Other Analyses b 20% of known value a From EPA publication, 'Erivironmental Radioactivity Laboratory lntercomparison Studies Program", Fiscal Year, 1981-1982, EPA-600/4-81-004.

b Laboratory limit.

A2

TABLE A-1. lnterlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)".

RAD study Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result Result Limits Acceptance ERW-1392 4/4/2016 Sr-89 43.5 +/- 4.3 48.2 37.8 - 55.6 Pass ERW-1392 4/4/2016 Sr-90 27.5+/-1.9 28.5 20.7 - 33.1 Pass ERW-1394 b 4/4/2016 *Ba-133 65.2 +/- 3.8 58.8 48.7 -64.9 Fail ERW-1394 ° 4/4/2016 Ba-133 57.8 +/- 5.3 58.8 48.7 - 64.9 Pass ERW-1394 4/4/2016 Cs-134 43.7 +/- 3.0 43.3 34.60 - 47.60 Pass ERW-1394 4/4/2016 Cs-137 86.1 +/- 5.3 78.4 70.60 - 88.90 Pass ERW-1394 4/4/2016 Co-60 108 +/- 44 102 91.8-114 Pass ERW-1394 4/4/2016 Zn-65 240 +/- 13 214 193 -251 Pass ERW-1397 4/4/2016 Gr. Alpha 52.0 +/- 2.2 62.7 32.9 - 77.8 Pass ERW-1397 4/4/2016 Gr. Beta 33.9 +/- 1.2 39.2 26.0 - 46.7 Pass ERW-1400 4/4/2016 1-131 24.7 +/- 0.6 26.6 22.1 - 31.3 Pass ERW-1402 4/4/2016 Ra-226 15.6 +/- 0.5 15.2 11.3 - 17.4 Pass ERW-1402 4/4/2016 Ra-228 5.28 +/- 0.76 5.19 3.12 - 6.93 Pass ERW-1403 4/4/2016 Uranium 4.02 +/- 0.42 4.64 3.39 - 5.68 Pass ERW-1405 4/4/2016 H-3 8150 +/- 270 7840 6790 - 8620 Pass SPW-2845 717/2015 Ba-133 60.3 +/- 5.7 64.7 53.9 - 71.2 Pass SPW-2845 717/2015 Cs-134 48.8 +/- 9.3 50.1 40.3 - 55.1 Pass SPW-2845 717/2015 Cs-137 101 +/- 8 89.8 80.8 - 101 Pass SPW-2845 7/7/2015 Co-60 65.1 +/- 5.8 59.9 53.9 - 68.4 Pass SPW-2845 7/7/2015 Zn-65 288 +/- 29 265 238 - 310 Pass ERW-3485 7/11/2016 Sr-89 43.3 +/- 6.5 53.3 42.3 - 60.9 Pass ERW-3485 7/11/2016 Sr-90 39.0 +/- 2.8 39.2 28.8 - 45.1 Pass ERW-3487 7/11/2016 Ba-133 83.3 +/- 4.9 82.9 69.7 - 91.2 Pass ERW-3487 7/11/2016 Cs-134 62.5 +/- 4.4 65.3 53.1 - 71.8 Pass ERW-3487 7/11/2016 Cs-137 98.1 +/- 5.6 95.2 85.7 -107 Pass ERW-3487 7/11/2016 Co-60 122 +/- 5 117 105 -131 Pass ERW-3487 7/11/2016 Zn-65 124 +/- 9 113 102 - 134 Pass ERW-3490 7/11/2016 Gr. Alpha 46.6 +/- 2.2 48.1 25.0 -60.5 Pass ERW-3490 7/11/2016 Gr. Beta 26.8+/-1.1 28.6 18.2 - 36.4 Pass ERW-3492 7/11/2016 1-131 23.7+/-1.0 24.9 20.7 -29.5 Pass ERW-3493 7/11/2016 Ra-226 12.9 +/- 0.4 12.3 9.2 - 14.2 Pass ERW-3493 7/11/2016 Ra-228 5.8 +/- 0.8 5.8 3.5 - 7.6 Pass ERW-3493 7/11/2016 Uranium 32.8 +/- 0.8 25.2 28.4 - 39.3 Pass ERW-3495 7/11/2016 H-3 12,400 +/- 334 12,400 10,800 - 13,600 Pass a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

b No reason determined for failure of Ba-133 result.

c The result of reanalysis (Compare to original result, footnoted "b" above).

Al-1

ab TABLE A-2. Thermoluminescent Dosimetry, (TLD, CaS0 4 : Dy Cards).

mrem 0

Lab Code Irradiation Delivered Reported Performance Date Description Dose Dose Quotient (P) Acceptance d Environmental. Inc. Group 1 2016-1 10/7/2016 Spike 1 135.0 148.3 0.10 2016-1 1017/2016 Spike 2 135.0 144.3 0.07 2016-1 1017/2016 Spike 3 135.0 133.2 -0.01 2016-1 1017/2016 Spike 4 135.0 139.6 0.03 2016-1 1017/2016 Spike 5 135.0 128.4 -0.05 2016-1 1017/2016 Spike 6 135.0 123.9 -0.08 2016-1 1017/2016 Spike 7 135.0 124.0 -0.08 2016-1 1017/2016 Spike 8 135.0 121.5 -0.10 2016-1 1017/2016 Spike 9 135.0 148.3 0.10 2016-1 1017/2016 Spike 10 135.0 126.8 -0.06 2016-1 1017/2016 Spike 11 135.0 123.3 -0.09 2016-1 1017/2016 Spike 12 135.0 137.9 0.02 2016-1 1017/2016 Spike 13 135.0 126.0 -0.07 2016-1 1017/2016 Spike 14 135.0 127.2 -0.06 2016-1 1017/2016 Spike 15 135.0 144.5 0.07 2016-1 1017/2016 Spike 16 135.0 140.5 0.04 2016-1 1017/2016 Spike 17 135.0 146.0 0.08 2016-1 1017/2016 Spike 18 135.0 127.7 -0.05 2016-1 1017/2016 Spike 19 135.0 146.8 0.09 2016-1 1017/2016 Spike 20 135.0 122.6 -0.09 2016-1 1017/2016 Spike 21 135.0 108.6 -0.20 2016-1 1017/2016 Spike 22 135.0 119.6 -0.11 2016-1 10/7/2016 Spike 23 135.0 135.1 0.00 2016-1 1017/2016 Spike 24 135.0 116.2 -0.14 2016-1 1017/2016 Spike 25 135.0 118.9 -0.12 2016-1 1017/2016 Spike 26 135.0 128.5 -0.05 2016-1 1017/2016 Spike 27 135.0 115.6 -0.14 2016-1 1017/2016 Spike 28 135.0 126.4 -0.06 2016-1 1017/2016 Spike 29 135.0 115.0 -0.15 2016-1 1017/2016 Spike 30 135.0 147.3 0.09 Mean (Spike 1-30) 130.4 0.03 Pass Standard Deviation (Spike 1-30) 11.5 0.09 Pass a Table A-2 assumes 1 roentgen =1 rem (NRG -Health Physics Questions and Answers 10 CFR Part 20 - Question 96 - Page Last Reviewed/Updated Thursday, October 01, 2015).

b TLD's were irradiated by the University of Wisconsin-Madison Radiation Calibration Laboratory following ANSI N13.37 protocol from a known air kerma rate. TLD's were read and the results were submitted by Environmental Inc. to the University of Wisconsin-Madison Radiation Calibration Laboratory for comparison to the delivered dose.

0 Performance Quotient (P) is calculated as ((reported dose - conventially true value) + conventially true value) where the conventially true value is the delivered dose.

d Acceptance is achieved when neither the absolute value of mean of the P values, nor the standard deviation of the P values exceed 0.15.

A2-1

ab TABLE A-2 Thermoluminescent Dosimetry, (TLD, CaS0 4 : Dy Cards).

mrem 0

Lab Code Irradiation Delivered Reported Performance Date Description Dose Dose Quotient (P) Acceptance d Environmental, Inc. Group 2 2016-2 1017/2016 Spike 31 87.0 83.0 -0.05 2016-2 1017/2016 Spike 32 87.0 88.3 0.01 2016-2 1017/2016 Spike 33 87.0 83.1 -0.04 2016-2 1017/2016 Spike 34 87.0 81.4 -0.06 2016-2 1017/2016 Spike 35 87.0 78.9 -0.09 2016-2 1017/2016 Spike 36 87.0 80.3 -0.08 2016-2 1017/2016 Spike 37 87.0 101.1 0.16 2016-2 1017/2016 Spike 38 87.0 78.3 -0.10 2016-2 1017/2016 Spike 39 87.0 86.6 0.00 2016-2 1017/2016 Spike 40 87.0 81.8 -0.06 2016-2 1017/2016 Spike 41 87.0 84.8 -0.03 2016-2 1017/2016 Spike 42 87.0 79.9 -0.08 2016-2 1017/2016 Spike 43 87.0 80.8 -0.07 2016-2 1017/2016 Spike44 87.0 80.2 -0.08 2016-2 1017/2016 Spike 45 87.0 82.7 -0.05 2016-2 1017/2016 Spike46 87.0 104.0 0.20

\

2016-2 1017/2016 Spike47 87.0 86.1 -0.01 2016-2 1017/2016 Spike48 87.0 104.0 0.20 2016-2 1017/2016 Spike49 87.0 86.1 -0.01 2016-2 1017/2016 Spike 50 87.0 90.8 0.04 2016-2 1017/2016 Spike 51 87.0 85.7 -0.01 2016-2 1017/2016 Spike 52 87.0 86.5 -0.01 2016-2 1017/2016 Spike 53 87.0 86.4 -0.01 2016-2 1017/2016 Spike 54 87.0 92.6 0.06 2016-2 1017/2016 Spike 55 87.0 88.6 0.02 2016-2 1017/2016 Spike 56 87.0 78.9 -0.09 2016-2 1017/2016 Spike 57 87.0 82.6 -0.05 2016-2 1017/2016 Spike 58 87.0 80.6 -0.07 2016-2 1017/2016 Spike 59 87.0 89.9 0.03 2016-2 1017/2016 Spike 60 87.0 85.0 -0.02 Mean (Spike 31-60) 86.0 0.01 Pass Standard Deviation (Spike 31-60) 6.9 0.08 Pass

Table A-2 assumes 1 roentgen= 1 rem (NRG -Health Physics Questions and Answers 10 CFR Part 20 - Question 96 - Page Last Reviewed/Updated Thursday, October 01, 2015).

b TL D's were irradiated by the University of Wisconsin-Madison Radiation Calibration Laboratory following ANSI N13.37 protocol from a known air kerma rate: TLD's were read and the results were submitted by Environmental Inc. to the University of Wisconsin-Madison Radiation Calibration Laboratory for comparison to the delivered dose.

0 Performance Quotient (P) is calculated as ((reported dose - conventially true value) + conventially true value) where the conventially true value is the delivered dose.

d Acceptance is achieved when neither the absolute value of mean of the P values, nor the standard deviation of the P values exceed 0.15.

A2-2

TABLE A-3. In-House "Spiked" Samples Concentration a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 ° Activity Limits d Acceptance SPW-290 1/21/2016 Sr-90 38.6+/-1.5 37.3 22.4 - 52.2 Pass SPW-292 1/21/2016 Sr-90 35.8+/-1.6 37.3 22.4 - 52.2 Pass 1 SPW-294 1/21/2016 C-14 4,689 +/- 18 4,735 2,841 - 6,629 Pass SPW-414 2/1/2016 Ra-228 18.4 +/- 2.2 17.7 10.6 - 24.8 Pass W-020416 2/4/2016 Gr. Alpha 20.8 +/- 0.4 20.1 12.0 - 28.1 Pass W-020416 2/4/2016 Gr. Beta 29.7 +/- 0.3 28.9 17.3-40.4 Pass W-021716 2/17/2016 Ra-226 17.9 +/- 0.5 16.7 10.0 - 23.4 Pass W-030716 3/7/2016 Gr. Alpha 16.3 +/- 0.8 20.1 12.0-28.1 Pass W-030716 3/7/2016 Gr. Beta 27.0 +/- 0.7 28.9 17.3-40.4 Pass SPDW-70046 3/29/2016 Ra-226 13.4 +/- 0.4 16.7 10.0 - 23.4 Pass SPW-1163 3/22/2016 Ra-228 4.2 +/- 0.7 4.4 2.6 - 6.2 Pass SPW-1235 3/29/2016 Gr. Alpha 21.0 +/- 0.4 20.1 12.0 - 28.1 Pass SPW-1235 3/29/2016 Gr. Beta 29.4 +/- 0.3 28.9 17.3 - 40.4 Pass SPW-1739 4/21/2016 Ra-228 16.2 +/- 2.0 17.7 10.6 - 24.8 Pass SPW-2052 4/21/2016 Ra-226 16.0 +/- 0.5 16.7 10.0 - 23.4 Pass W-042616 4/21/2016 Fe-55 1,519 +/- 61 1,482 889 - 2,075 Pass SPW-1823 4/23/2016 Gr. Alpha 21.0 +/- 0.4 20.1 12.0-28.1 Pass SPW-1823 4/23/2016 Gr. Beta 26.6 +/- 0.3 28.9 17.3 - 40.4 Pass SPW-1998 4/29/2016 Cs-134 35.9 +/- 6.0 36.2 21.7 - 50.6 Pass SPW-1998 4/29/2016 Cs-137 82.5 +/- 7.6 71.9 43.1 -100.6 Pass SPW-2097 5/3/2016 H-3 3,349 +/- 184 3,280 1,968 - 4,592 Pass SPW-2132 5/4/2016 H-3 3,174 +/- 178 3,280 1,968 - 4,592 Pass SPW-2229 5/7/2016 H-3 3,182+/-179 3,280 1,968 - 4,592 Pass SPW-2313 5/13/2016 H-3 3,183 +/- 179 3,280 1,968 - 4,592 Pass SPW-2341 5/13/2016 H-3 3,201 +/- 178 3,280 1,968 - 4,592 Pass SPW-2374 5/14/2016 H-3 3,037+/-175 3,280 1,968 - 4,592 Pass SPW-2411 5/17/2016 Sr-90 37.3+/-1.6 37.3 22.4 - 52.2 Pass SPW-2455 5/19/2016 Gr. Alpha 19.3+/-0.4 20.1 12.0 - 28.1 Pass SPW-2455 5/19/2016 Gr. Beta 28.6 +/- 0.3 28.9 17.3 - 40.4 Pass SPW-2457 5/19/2016 U-238 48.2 +/- 2.4 41.7 25.0 - 58.4 Pass SPW-2504 5/20/2016 H-3 3,181 +/-178 3,280 1,968 - 4,592 Pass SPW-2528 5/23/2016 H-3 2,998 +/- 175 3,280 1,968 - 4,592 Pass SPW-2566 5/24/2016 Gr. Alpha 19.8 +/- 0.5 20.1 12.0 - 28.1 Pass SPW-2566 5/24/2016 Gr. Beta 30.4 +/- 0.3 28.9 17.3 -40.4 Pass W-053116 4/29/2016 Cs-134 34.0 +/- 5.0 36.2 21.7 - 50.6 Pass W-053116 4/29/2016 Cs-137 78.8 +/- 7.0 71.9 43.1 -100.6 Pass SPW-2704 6/1/2016 Sr-90 38.0 +/- 1.6 37.3 22.4 - 52.2 Pass SPW-2719 6/2/2016 Ra-228 18.1 +/-2.1 17.7 10.6 - 24.8 Pass SPW-2749 6/3/2016 H-3 3, 197 +/- 180 3,280 1,968 - 4,592 Pass SPW-2843 6/7/2016 H-3 3,133+/-179 3,280 1,968 - 4,592 Pass SPW-3227 6/17/2016 Ra-226 18.6 +/- 0.4 16.7 10.0 - 23.4 Pass W-061716 4/29/2016 Cs-134 37.3 +/- 8.2 36.2 21.7 - 50.6 Pass W-061716 4/29/2016 Cs-137 79.7 +/- 10.8 71.9 43.1 -100.6 Pass SPW-3240 6/28/2016 Gr. Alpha 25.3 +/- 0.5 20.1 12.0 - 28.1 Pass SPW-3240 6/28/2016 Gr. Beta 27.1 +/- 0.3 28.9 17.3 -40.4 Pass A3-1

TABLE A-3. In-House "Spiked" Samples Concentration a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Limits d Acceptance SPW-3241 7/1/2016 H-3 8,821 +/- 283 8,650 5, 190 - 12, 110 Pass SPW-3309 7/1/2016 H-3 8,619 +/- 278 8,650 5, 190 - 12, 110 Pass SPW-3313 7/1/2016 Ra-228 16.6 +/- 2.0 17.7 10.6 - 24.8 Pass SPW-3328 7/6/2016 Sr-89 13.4 +/- 9.2 14.8 8.9 - 20.7 Pass SPW-3328 7/6/2016 Sr-90 12.3+/-1.3 11.4 6.8 -16.0 Pass SPAP-3365 7/7/2016 Gr. Beta 39.7 +/- 0.1 42.2 25.3 - 59.0 Pass SPAP-3367 7/7/2016 Cs-134 1.2 +/- 0.7 1.2 0.7 - 1.7 Pass SPAP-3367 7/7/2016 Cs-137 94.4 +/- 2.8 94.0 56.4 - 131.6 Pass SPW-3370 7/7/2016 C-14 4,444 +/- 17 4,735 2,841 - 6,629 Pass SPW-3373 7/7/2016 Ni-63 446 +/-5 401 241 - 561 Pass SPW-3375 7/7/2016 Tc-99 545 +/-9 539 324 - 755 Pass SPW-3519 7/14/2016 H-3 8,621 +/- 279 8650 5, 190 - 12, 110 Pass SPW-3688 6/29/2016 Ra-226 17.5 +/-0.4 16.7 10.0 - 23.4 Pass SPW-3711 7/20/2016 H-3 44,368 +/- 612 43,766 26,260 - 61,273 Pass SPW-3774 7/22/2016 H-3 45,259 +/- 619 43,766 26,260 - 61,273 Pass SPW-3776 7/22/2016 Gr. Alpha 23.3 +/- 0.5 20.1 12.0 - 28.1 Pass SPW-3776 7/22/2016 Gr. Beta 27.5 +/- 0.3 28.9 17.3-40.4 Pass SPW-3884 7/26/2016 H-3 45,850 +/- 623 43,766 26,260 - 61,273 Pass SPW-3950 7/28/2016 Ra-228 17.8+/-1.8 16.7 10 - 23 Pass SPW-3982 7/29/2016 H-3 45,273 +/- 619 43,766 26,260 - 61,273 Pass W-073016 4/29/2016 Cs-134 36.5 +/- 6.1 36.2 21.7 - 50.6 Pass W-073016 4/29/2016 Cs-137 80.6 +/- 7.5 71.9 43.1 -100.6 Pass SPW-4134 8/4/2016 Ra-228 5.5 +/- 0.8 6.7 4.0 - 9.3 Pass SPW-4340 8/17/2016 Ra-228 19.9 +/- 2.0 16.7 10.0 - 23.4 Pass SPW-4386 7/15/2016 Ra-226 18.0 +/- 0.4 16.7 10.0 -23.4 Pass W-082716 4/29/2016 Ra-228 32.5 +/- 5.2 36.2 21.7 - 50.6 Pass W-082716 4/29/2016 Ra-226 78.5 +/- 8.3 71.9 43.1 -100.6 Pass SPW-4642 9/6/2016 U-238 45.8 +/- 2.5 41.7 25.0 - 58.4 Pass SPW-4999 9/26/2016 Sr-90 35.1 +/- 2.2 36.8 22.1 - 51.5 Pass SPW-5091 9/12/2016 Ra-226 18.2 +/- 0.4 16.7 10.0 - 23.4 Pass W-092716 4/29/2016 Cs-134 37.3+/-11.8 36.2 21.7 - 50.6 Pass W-092716 4/29/2016 Cs-137 78.3 +/- 11.2 71.9 43.1 -100.6 Pass SPW-5165 9/30/2016 Gr. Alpha 22.2 +/- 0.4 20.1 12.0 -28.1 Pass SPW-5165 9/30/2016 Gr. Beta 27.2 +/- 0.3 28.9 17.3 - 40.4 Pass SPW-5426 9/28/2016 Ra-226 18.2 +/- 0.4 16.7 10.0 - 23.4 Pass SPW-5510 10/18/2016 H-3 44,398 +/- 618 43,766 26,260 - 61273 Pass SPW-5553 10/19/2016 U-238 50.0 +/- 2.6 41.7 25.0 - 58.4 Pass SPW-5555 10/19/2016 Ra-228 17.4+/-1.9 16.7 10.0 - 23.4 Pass SPW-5612 10/20/2016 H-3 44,681 +/- 622 43,766 26,260 - 61,273 Pass SPW-5741 10/25/2016 H-3 44,946 +/- 624 43,766 26,260 - 61,273 Pass SPU-5833 10/26/2016 H-3 10,018 +/- 946 8,622 5,173 -12,071 Pass SPW-5862 10/28/2016 H-3 18,061 +/- 374 17,244 10,346 -24,141 Pass W-103116 I- 4/29/2016 Cs-134 36.0 +/-4.6 36.2 21.7 - 50.6 Pass W-103116 4/29/2016 Cs-137 81.1 +/-7.3 71.9 43.1 -100.6 Pass A3-2

TABLE A-3. In-House "Spiked" Samples Concentration "

Lab Code b Date Analysis Laboratory results Known Control 2s, n=1c Activity Limits d Acceptance SPW-5984 11/2/2016 H-3 17,727 +/- 399 17,244 10,346 -24,141 Pass SPW-6008 11/4/2016 H-3 17,854 +/- 402 17,244 10,346 -24,141 Pass SPW-6124 11/8/2016 Ra-228 14.4+/-1.9 16.0 9.6 - 22.4 Pass SPW-6132 11/9/2016 H-3 18,135 +/- 374 17,243 10,346 - 24,140 Pass SPW-6135 10/12/2016 Ra-226 18.9 +/- 0.4 16.7 10.0 - 23.4 Pass SPW-6146 11/10/2016 H-3 17,488° +/- 398 17,243 10,346 - 24, 140 Pass SPW-6222 11/12/2016 H-3 17,787 +/- 408 17,243 10,346 - 24, 140 Pass SPW-6318 11/16/2016 H-3 17,379 +/- 408 17,243 10,346 - 24, 140 Pass SPW-6349 11/17/2016 H-3 17,893 +/- 371 17,243 10,346 -24,140 Pass SPW-6424 11/19/2016 H-3 18,258 +/- 379 17,243 10,346 - 24,140 Pass W-112616 4/29/2016 Cs-134 35.0 +/- 6.0 36.2 21.7 -50.6 Pass W-112616 4/29/2016 Cs-137 75.0 +/- 7.1 71.9 43.1 -100.6 Pass SPW-6456 11/28/2016 Sr-90 41.9 +/-2.5 36.8 22.1 - 51.5 Pass SPW-6486 11/30/2016 Sr-90 35.6 +/- 2.2 36.6 21.9 - 51.2 Pass SPW-6490 11/29/2016 Ra-226 18.8 +/- 0.4 16.7 10.0 - 23.4 Pass SPW-6519 11/30/2016 Ni-63 438 +/-4 400 240 - 560 Pass SPW-6527 12/1/2016 U-238 49.5 +/- 2.5 41.7 25.0 - 58.4 Pass SPW-6616 12/3/2016 H-3 18,018 +/- 374 17,243 10,346 -24,140 Pass SPW-6669 12/5/2016 H-3 18,237 +/- 377 17,243 10,346 - 24, 140 Pass SPW-6735 12/9/2016 H-3 17,939 +/- 396 17,243 10,346 - 24, 140 Pass SPW-6880 12/21/2016 H-3 17,835 +/- 396 17,243 10,346 - 24, 140 Pass SPW-6947 12/22/2016 Ni-63 450 +/-4 400 240 - 560 Pass W-122316 4/29/2016 Cs-134 36.0 +/- 2.2 36.2 21.7 - 50.6 Pass W-122316 4/29/2016 Cs-134 76.1 +/- 2.9 71.9 43.1 -100.6 Pass SPW-6948 12/30/2016 H-3 17,999 +/- 398 17,243 10,346 -24,140 Pass SPW-6974 12/29/2016 Ra-226 17.6 +/- 0.4 16.7 10.0 - 23.4 Pass

Liquid sample results are reported in pCi/Liter, air filters ( pCi/m3), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).

b Laboratory codes : W (Water), Ml (milk), AP (air filter), SO (soil), VE (vegetation), CH (charcoal canister), F (fish), U (urine).

c Results are based on single determinations.

d Control limits are established from the precision values listed in Attachment A of this report, adjusted to +/- 2s.

NOTE: For fish, gelatin is used for the spike matrix. For vegetation, cabbage is used for the spike matrix.

A3-3

TABLE A-4. In-House "Blank" Samples Concentration a Lab Code Sample Date Analysisb Laboratory results (4.66cr) Acceptance Type LLD Activity0 Criteria (4.66 er)

SPW-289 Water 1/21/2016 Sr-90 0.55 0.28 +/- 0.29 SPW-291 Water 1/21/2016 Sr-90 0.61 0.15 +/- 0.30 SPW-293 Water 1/21/2016 C-14 147 -12 +/- 89 200 SPW-413 Water 2/1/2016 Ra-228 0.86 1.86 +/- 0.60 2 W-020416 Water 2/4/2016 Gr. Alpha 0.43 -0.17 +/- 0.28 2 W-020416 Water 2/4/2016 Gr. Beta 0.73 0.36 +/- 0.53 4 W-020916 Water 2/9/2016 Ra-226 0.02 0.01 +/- 0.01 2 W-030716 Water 3/7/2016 Gr. Alpha 0.90 -0.36 +/- 0.32 2 W-030716 Water 317/2016 Gr. Beta 1.59 -0.62 +/- 0.71 4 SPDW-70045 Water 3/29/2016 Ra-226 0.03 0.01 +/- 0.02 2 SPDW-1234 Water 3/30/2016 Gr. Alpha 0.44 -0.05 +/- 0.30 2 SPDW-1234 Water 3/30/2016 Gr. Beta 0.79 -0.54 +/- 0.54 4 SPW-1738 Water 4/21/2016 Ra-228 1.05 0.13+/-0.50 2 SPW-1822 Water 4/23/2016 Gr. Alpha 0.50 -0.18 +/-0.33 2 SPW-1822 Water 4/23/2016 Gr. Beta 0.08 -0.35 +/- 0.51 4 SPW-2051 Water 4/12/2016 Ra-226 0.02 0.03 +/- 0.02 2 SPW-2069 Water 5/3/2016 1-131 0.15 0.06 +/- 0.09 SPW-2133 Water 5/4/2016 H-3 148 55 +/- 76 200 SPW-2230 Water 5/7/2016 H-3 149 -11 +/- 73 200 SPW-2314 Water 5/13/2016 H-3 150 -29 +/- 72 200 SPW-2342 Water 5/13/2016 H-3 143 50 +/-74 200 SPW-2364 Water 5/13/2016 1-131 0.22 -0.03 +/- 0.12 SPW-2375 Water 5/14/2016 H-3 146 1 +/- 70 200 SPW-2410 Water 5/17/2016 Sr-90 0.59 0.10 +/- 0.29 1 SPW-2454 Water 5/19/2016 Gr. Alpha 0.47 -0.21 +/- 0.31 2 SPW-2454 Water 5/19/2016 Gr. Beta 0.77 -0.49 +/- 0.52 4 SPW-2456 Water 5/19/2016 U-238 0.15 0.00 +/- 0.09 SPW-2485 Water 5/20/2016 1-131 0.18 -0.01 +/- 0.10 SPW-2505 Water 5/20/2016 H-3 144 64 +/- 75 200 SPW-2529 Water 5/23/2016 H-3 152 -3 +/- 75 200 SPW-2530 Water 5/23/2016 Ra-228 0.96 -0.12 +/- 0.43 2 SPW-2565 Water 5/24/2016 Gr. Alpha 0.47 0.03 +/- 0.33 2 SPW-2565 Water 5/24/2016 Gr. Beta 0.77 -0.23 +/- 0.53 4 SPW-2703 Water 6/1/2016 Sr-89 0.68 -0.13 +/- 0.50 5 SPW-2703 Water 6/1/2016 Sr-90 0.55 0.11 +/- 0.27 1 SPW-2718 Water 6/2/2016 Ra-228 0.67 0.23 +/- 0.34 2 SPW-2720 Water 6/2/2016 1-131 0.16 0.01 +/- 0.09 1 SPW-2750 Water 6/3/2016 H-3 151 -31 +/- 73 200 SPW-2844 Water 617/2016 H-3 148 -55 +/- 75 200 SPMl-2959 Milk 6/14/2016 1-131 0.16 0.09 +/- 0.10 SPW-3137 Water 6/23/2016 1-131 0.15 -0.03 +/- 0.08 1 SPW-3226 Water 6/17/2016 Ra-226 0.02 -0.01 +/- 0.04 2 SPW-3239 Water 6/28/2016 Gr. Alpha 0.40 -0.15 +/-0.26 2 SPW-3239 Water 6/28/2016 Gr. Beta 0.73 0.14 +/- 0.52 4 SPW-3687 Water 6/29/2016 Ra-226 0.04 0.03 +/- 0.03 2

Liquid sample results are reported in pCi/Liter, air filters ( pCl/m 3 ), charcoal (pCi/charcoal canister), and solid samples (pCi/g).

b 1-131(G); iodine-131 as analyzed by gamma spectroscopy.

0 Activity reported is a net activity result.

A4-1

TABLE A-4. In-House "Blank" Samples Concentration a Lab Code Sample Date Analysisb Laboratory results (4.66cr) Acceptance Type LLD Activity0 Criteria (4.66 cr)

SPW-3312 Water 7/1/2016 Ra-228 0.67 0.35 +/- 0.35 2 SPW-3327 Water 7/6/2016 Sr-89 0.67 0.51 +/- 0.51 5 SPW-3327 Water 7/6/2016 Sr-90 0.60 -0.14 +/- 0.26 1 SPAP-3364 AP ?n/2016 Gr.Beta 0.002 0.005 +/- 0.001 0.01 SPW-3370 Water 717/2016 C-14 . 115 49 +/- 71 200 SPW-3372 Water 717/2016 Ni-63 122 115 +/- 76 200 SPW-3374 Water 717/2016 Tc-99 6.07 1.00 +/- 3.70 10 SPW-3710 Water 7/20/2016 H-3 147 35 +/- 75 200 SPW-3775 Water 7/22/2016 Gr. Alpha 0.73 0.41 +/- 0.53 2 SPW-3775 Water 7/22/2016 Gr. Beta 0.45 -0.14 +/- 0.30 4 SPW-3884 Water 7/26/2016 H-3 151 -1 +/- 73 200 SPW-3949 Water 7/28/2016 Ra-228 0.76 0.32 +/- 0.39 2 SPW-3982 Water 7/29/2016 H-3 145 49 +/-75 200 SPW-4133 Water 8/4/2016 Ra-228 0.80 0.26 +/- 0.40 2 SPW-4257 Water 8/11/2016 1-131 0.17 -0.01 +/-0.10 1 SPW-4339 Water 8/17/2016 Ra-228 0.73 0.36 +/- 0.39 2 SPW-4385 Water 7/15/2016 Ra-226 0.09 0.75 +/- 0.09 2 SPW-4641 Water 9/6/2016 U-238 0.21 0.00 +/- 0.13 SPW-4684 Water 9/8/2016 H-3 151 48 +/-78 200 SPW-4872 Water 9/16/2016 1-131 0.21 0.05 +/- 0.11 1 SPW-4998 Water 9/26/2016 Sr-89 0.54 0.06 +/- 0.39 5 SPW-4998 Water 9/26/2016 Sr-90 0.53 -0.03 +/- 0.24 1 SPW-5090 Water 8/19/2016 Ra-226 0.03 0.03 +/- 0.02 2 SPW-5164 Water 9/30/2016 Gr. Alpha 0.46 -0.05 +/- 0.32 2 SPW-5164 Water 9/30/2016 Gr. Beta 0.74 -0.02 +/- 0.52 4 SPW-5425 Water 9/28/2016 Ra-226 0.02 0.07 +/- 0.05 2 SPW-5323 Water 10/7/2016 H-3 157 -12 +/- 75 200 SPW-5552 Water 10/19/2016 U-238 0.18 0.00 +/- 0.11 1 SPW-5554 Water 10/19/2016 Ra-228 0.72 0.22 +/- 0.36 2 SPW-5611 Water 10/20/2016 H-3 153 67 +/-80 200 SPW-5613 Water 10/21/2016 Gr.Alpha 0.76 -0.55 +/- 0.51 2 SPW-5613 Water 10/21/2016 Gr. Beta 0.42 0.02 +/- 0.29 4 SPW-5740 Water 10/25/2016 H-3 154 -2 +/- 72 200 SPW-5743 Water 10/25/2016 Sr-90 1.26 0.72 +/- 0.67 1 SPW-5861 Water 10/28/2016 H-3 179 129 +/- 91 200 SPW-5983 Water 11/2/2016 H-3 156 8 +/- 78 200 SPW-6007 Water 11/4/2016 H-3 156 -34 +/- 73 200 SPW-6131 Water 11/9/2016 H-3 180 80 +/- 92 200 SPW-6134 Water 10/12/2016 Ra-226 0.05 -0.02 +/- 0.12 2 SPW-6145 Water 11/10/2016 H-3 171 -46 +/- 80 200 SPW-6317 Water 11/16/2016 H-3 180 -43 +/- 82 200 SPW-6348 Water 11/17/2016 H-3 182 -45 +/- 88 200 SPW-6423 Water 11/19/2016 H-3 181 8 +/- 95 200 SPW-6455 Water 11/28/2016 Sr-89 0.58 -0.15+/-0.46 5 SPW-6455 Water 11/28/2016 Sr-90 0.67 0.09 +/- 0.32 1 SPW-6489 Water 11/29/2016 Ra-226 0.03 0.03 +/- 0.02 2

Liquid sample results are reported in pCi/liter, air filters ( pCi!m\ charcoal (pCi/charcoal canister), and solid samples (pCi/g).

b l-131(G); iodine-131 as analyzed by gamma spectroscopy.

c Activity reported is a net activity result.

A4-2

TABLE A-4. In-House "Blank" Samples Concentration a Lab Code Sample Date Analysisb Laboratory results {4.66cr) Acceptance Type LLD Activity0 Criteria (4.66 cr)

SPW-6529 Water 12/1/2016 1-131 0.18 -0.03 +/-0.10 r

SPW-6616 Water 12/3/2016 H-3 180 72 +/-92 200 SPW-6670 Water 12/5/2016 H-3 174 28 +/-92 200 SPW-6735 Water 12/9/2016 H-3 152 2 +/- 73 200 SPW-6792 Water 12/15/2016 1-131 0.17 0.03 +/- 0.12 1 SPW-6819 Water 12/16/2016 H-3 158 14 +/- 77 200 SPW-6879 Water 12/21/2016 H-3 147 80 +/- 75 200 SPW-6947 Water 12/22/2016 Ni-63 93 26 +/-57 200 SPW-6973 Water 12/29/2016 Ra-226 0.03 0.03 +/- 0.02 2

Liquid sample results are reported in pCi/Liter, air filters ( pCi!m\ charcoal (pCi/charcoal canister), and solid samples (pCi/g).

b 1-131(G); iodine-131 as analyzed by gamma spectroscopy.

0 Activity reported is a net activity result.

A4-3

TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance AP-010416 1/4/2016 Gr. Beta 0.044 +/- 0.006 0.051 +/- 0.006 0.047 +/- 0.004 Pass SPS-62, 63 11712016 K-40 21.1 +/- 1.9 21.2 +/-2.1 21.2 +/- 1.4 Pass WW-125, 126 11712016 H-3 659 +/- 102 748 +/- 106 703 +/- 74 Pass SPS-199, 200 11712016 Cs-137 0.09 +/- 0.02 0.08 +/- 0.03 0.08 +/- 0.02 Pass SPS-199, 200 1/7/2016 K-40 7.60 +/- 0.60 8.62 +/- 0.62 8.11 +/-0.43 Pass AP-011116 1/11/2016 Gr. Beta 0.024 +/- 0.005 0.027 +/- 0.005 0.026 +/- 0.003 Pass AP-011216 1/12/2016 Gr. Beta 0.030 +/- 0.004 0.034 +/- 0.004 0.032 +/- 0.003 Pass WW-262, 263 1/14/2016 H-3 153 +/- 78 141 +/- 78 147 +/- 55 Pass WW-346, 347 1/14/2016 H-3 1,036+/-117 959+/-115 997 +/- 82 Pass WW-283, 284 1/18/2016 H-3 437 +/- 92 427 +/- 91 432 +/- 65 Pass AP-011916 1/19/2016 Gr. Beta 0.042 +/- 0.005 0.037 +/- 0.004 0.040 +/- 0.003 Pass AP-012016 1/20/2016 Gr. Beta 0.023 +/- 0.003 0.030 +/- 0.004 0.027 +/- 0.002 Pass AP-020116 2/1/2016 Gr. Beta 0.023 +/- 0.005 0.023 +/- 0.005 0.023 +/- 0.004 Pass SWU-472, 473 2/212016 Gr. Beta 4.37 +/- 0.47 4.60 +/- 0.49 4.49 +/- 0.34 Pass SG-493, 494 2/6/2016 Ac-228 2.10+/-0.20 2.13 +/- 0.20 2.12 +/- 0.14 Pass SG-493, 494 2/6/2016 K-40 5.79 +/- 0.57 5.50 +/- 0.69 5.65 +/- 0.45 Pass SG-493, 494 2/6/2016 Pb-214 1.84 +/-0.11 1.91 +/- 0.11 1.88 +/- 0.08 Pass AP-020816 2/8/2016 Gr. Beta 0.020 +/- 0.004 0.019 +/- 0.004 0.020 +/- 0.003 Pass AP-020916 2/9/2016 Be-7 0.032 +/- 0.005 0.041 +/- 0.006 0.036 +/- 0.004 Pass SPS-619, 620 2/18/2016 K-40 20.0 +/- 1.8 19.1 +/- 1.6 19.5+/-1.2 Pass WW-640, 641 2/18/2016 H-3 90.1 +/- 75.0 153.6 +/- 78.4 121.8 +/-54.2 Pass AP-021916 2/19/2016 Gr. Beta 0.021 +/- 0.003 0.025 +/- 0.004 0.023 +/- 0.002 Pass WW-822, 823 2/26/2016 H-3 2,770 +/-173 2,974 +/- 178 2,872 +/- 124 Pass DW-70010, 70011 2/29/2016 Ra-226 4.88 +/- 0.29 4.93 +/- 0.28 4.91 +/- 0.20 Pass DW-70010, 70011 2/29/2016 Ra-228 3.00 +/- 0.77 1.96 +/- 0.62 2.45 +/- 0.49 Pass SW-934, 935 3/1/2016 Gr. Beta 0.94 +/- 0.52 1.36 +/- 0.60 1.15 +/-0.40 Pass SPS-913, 914 3/3/2016 Cs-137 0.08 +/- 0.03 0.10 +/- 0.03 0.09 +/- 0.02 Pass SPS-913, 914 3/3/2016 K-40 17.45 +/- 0.94 16.83 +/- 0.95 17.14 +/- 0.67 Pass SPS-913, 914 3/3/2016 Ra-226 1.02 +/- 0.08 1.13 +/- 0.17 1.07 +/- 0.09 Pass SPS-913, 914 3/3/2016 Ra-228 1.09 +/-0.15 1.13+/-0.17 1.11 +/- 0.11 Pass AP-030716 31712016 Gr. Beta 0.018 +/- 0.005 0.021 +/- 0.005 0.019 +/- 0.003 Pass F-1303, 1304 31712016 K-40 3.320 +/- 0.475 3.508 +/- 0.396 3.414 +/- 0.309 Pass SG-976, 977 3/8/2016 Ra-226 6.75 +/- 0.25 6.28 +/- 0.22 6.52+/-0.17 Pass SG-976, 977 3/8/2016 Ra-228 9.21 +/- 0.49 9.09 +/- 0.49 9.15 +/-0.35 Pass PM-1094, 1095 3/9/2016 K-40 14.01 +/- 0.68 14.47 +/- 0.72 14.24 +/- 0.49 Pass Ml-1042, 1043 31712016 K-40 1,684 +/- 124 1,804+/-119 1,744+/-86 Pass DW-70023, 70024 31712016 Ra-226 3.40 +/- 0.43 2.68 +/- 0.35 3.04 +/- 0.28 Pass DW-70023, 70024 3/7/2016 Ra-228 4.46 +/- 0.83 5.74 +/- 0.94 5.10+/-0.63 Pass DW-70014, 70015 31712016 Gr. Alpha 13.38+/-1.58 11.40+/-1.43 12.39 +/- 1.07 Pass DW-70026, 70027 3/7/2016 Gr. Alpha 3.46 +/- 0.79 3.08 +/- 0.74 3.27 +/- 0.54 Pass DW-70038, 70039 3/8/2016 Gr.Alpha 1.14 +/-0.89 1.73 +/- 0.95 1.44 +/- 0.65 Pass DW-70035, 70036 3/8/2016 Ra-226 0.47 +/- 0.10 0.45 +/- 0.09 0.46 +/- 0.07 Pass DW-70035, 70036 3/8/2016 Ra-228 0.56 +/- 0.45 0.47 +/- 0.44 0.52 +/- 0.31 Pass AP-031516 3/15/2016 Gr. Beta 0.014 +/- 0.003 0.016 +/- 0.004 0.015 +/- 0.002 Pass AP-032116 3/21/2016 Gr. Beta 0.014 +/- 0.004 0.020 +/- 0.004 0.017 +/- 0.003 Pass AP-1218,1219 3/24/2016 Be-7 0.135 +/- 0.065 0.167 +/- 0.081 0.151 +/- 0.052 Pass AP-1719, 1720 3/28/2016 Be-7 0.075 +/- 0.008 0.076 +/- 0.007 0.076 +/- 0.005 Pass AP-033016 3/30/2016 Gr. Beta 0.023 +/- 0.004 0.025 +/- 0.004 0.024 +/- 0.003 Pass SPS-1260, 1261 3/30/2016 K-40 18.00+/-1.92 19.67+/-1.77 18.84+/-1.30 Pass XW-1467, 1468 3/30/2016 H-3 310 +/- 87 295 +/- 86 303 +/- 61 Pass XWW-1530, 1531 3/30/2016 H-3 198 +/- 84 162 +/- 82 180 +/- 59 Pass AP-1827, 1828 3/30/2016 Be-7 0.069 +/- 0.011 0.072 +/- 0.011 0.071 +/- 0.008 Pass AP-1323,1324 3/31/2016 Be-7 0.206 +/- 0.120 0.197 +/- 0.091 0.202 +/- 0.076 Pass LW-1446,1447 3/31/2016 Gr. Beta 2.36 +/- 0.93 2.23 +/- 1.01 2.29 +/- 0.69 Pass AS-1

TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance WW-1740,1741 4/2/2016 H-3 21,162 +/- 120 21,091 +/- 427 21,126 +/-222 Pass SPS-1344, 1345 4/4/2016 K-40 17.98 +/- 0.93 17.14 +/-0.96 17.56 +/-0.67 Pass*

SPS-1344, 1345 4/4/2016 Pb-214 1.12 +/- 0.09 1.04 +/- 0.08 1.08 +/- 0.06 Pass SPS-1344, 1345 4/4/2016 Ac-228 1.23 +/- 0.15 1.33+/-0.19 1.28 +/- 0.12 Pass SPS-1344, 1345 4/4/2016 Cs-137 0.13 +/- 0.03 0.13 +/- 0.03 0.13 +/- 0.02 Pass P-1509, 1510 4/8/2016 H-3 1,084 +/- 120 1,038 +/- 119 1,061 +/- 85 Pass AP-041116 4/11/2016 Gr. Beta 0.020 +/- 0.004 O.D19 +/- 0.004 0.019 +/- 0.003 Pass SS-1551, 1552 4/12/2016 Gr. Beta 8.71 +/- 1.11 8.88 +/- 1.13 8.80 +/- 0.79 Pass SS-1551, 1552 4/12/2016 K-40 3.50 +/- 0.25 3.06 +/- 0.28 3.28 +/-0.19 Pass SS-1551, 1552 4/12/2016 Tl-208 0.05 +/- 0.02 0.05 +/- 0.02 0.05 +/- 0.01 Pass SS-1551,1552 4/12/2016 Bi-214 0.10+/-0.02 0.09 +/- 0.02 0.10 +/- 0.02 Pass SS-1551, 1552 4/12/2016 Pb-212 0.13 +/- 0.02 0.11 +/- 0.02 0.12 +/- 0.01 Pass SS-1551,1552 4/12/2016 Ra-226 0.35 +/- 0.17 0.30 +/- 0.17 0.32 +/- 0.12 Pass SS-1551,1552 4/12/2016 Ac-228 0.16 +/- 0.05 0.17+/-0.05 0.17+/-0.04 Pass SS-1593,1594 4/12/2016 K-40 14.80 +/- 0.73 14.89 +/- 0.78 14.85 +/- 0.53 Pass WW-1677, 1678 4/14/2016 Ra-226 0.23 +/-0.13 0.35 +/- 0.15 0.29 +/- 0.10 Pass WW-1783,1784 4/14/2016 H-3 768 +/- 111 632 +/- 107 700 +/- 77 Pass BS-1804, 1805 4/18/2016 K-40 0.79 +/- 0.02 0.87 +/- 0.19 0.83 +/-0.10 Pass WW-2021,2022 4/18/2016 H-3 5,548 +/- 221 5,707 +/- 224 5,627 +/- 157 Pass XWW-2240, 2241 4/18/2016 H-3 638 +/- 104 543 +/- 101 591 +/- 72 Pass XWW-2109, 2110 4/19/2016 H-3 3461 +/- 185 3250 +/- 180 3356 +/- 129 Pass SPS-2130, 2131 4/25/2016 K-40 7.80 +/- 0.84 6.80 +/- 0.60 7.30 +/- 0.52 Pass AP-042516 4/25/2016 Gr. Beta 0.020 +/- 0.004 0.023 +/- 0.004 0.022 +/- 0.003 Pass BS-2065, 2066 4/25/2016 K-40 14.40 +/- 1.50 14.72 +/- 1.19 14.56 +/- 0.96 Pass AP-042716 4/27/2016 Gr. Beta 0.023 +/- 0.003 0.019 +/- 0.003 0.021 +/- 0.002 Pass SPS-1999, 2000 4/28/2016 K-40 19.84+/-1.76 18.963 +/- 2.42 19.40 +/- 1.50 Pass 80-2153,2154 5/2/2016 K-40 21.80 +/- 0.81 21.17 +/- 0.85 21.48 +/- 0.59 Pass S0-2153,2154 5/2/2016 Cs-137 0.11 +/- 0.03 0.11 +/- 0.07 0.11 +/- 0.04 Pass 80-2153,2154 5/2/2016 Ra-226 1.50 +/- 0.29 1.22 +/- 0.29 1.36 +/- 0.21 Pass S0-2153,2154 5/2/2016 Pb-214 0.56 +/- 0.06 0.57 +/- 0.06 0.57 +/- 0.04 Pass W-2394,2395 5/5/2016 H-3 736 +/- 106 631 +/- 102 683 +/- 74 Pass VE-2284,2285 5/9/2016 K-40 3.50 +/- 0.25 3.06 +/- 0.28 3.28 +/- 0.19 Pass AP-051016 5/10/2016 Gr. Beta 0.020 +/- 0.005 0.018 +/- 0.005 0.019 +/- 0.003 Pass SG-2261, 2262 5/10/2016 Ac-228 34.4 +/- 1.2 34.4 +/- 1.4 34.4 +/- 0.9 Pass SG-2261, 2262 5/10/2016 Pb-214 29.5 +/- 3.0 31.9 +/- 3.3 30.7 +/- 2.2 Pass BS-2439, 2440 5/12/2016 K-40 9.96 +/- 0.91 10.27 +/- 0.76 10.11+/-0.59 Pass WW-2534,2535 5/16/2016 H-3 14,342 +/- 354 14,613 +/- 357 14,477 +/- 252 Pass AP-051716 5/17/2016 Gr. Beta 0.014 +/- 0.004 0.015 +/- 0.004 0.014 +/- 0.003 Pass SPS-2945, 2946 5/19/2016 K-40 30.71 +/- 0.74 31.75 +/- 0.78 31.23 +/- 0.54 Pass SPS-2945, 2946 5/19/2016 Be-7 1.55 +/- 0.24 1.90 +/- 0.35 1.73 +/- 0.21 Pass SPS-2578, 2579 5/24/2016 Pb-214 0.96 +/- 0.12 0.80 +/- 0.14. 0.88 +/- 0.09 Pass AP-052516 5/25/2016 Gr. Beta 0.022 +/- 0.004 0.022 +/- 0.004 0.022 +/- 0.003 Pass G-2642,2643 5/26/2016 Be-7 0.443 +/- 0.178 0.247 +/- 0.247 0.345 +/- 0.152 Pass S0-2663, 2664 5/26/2016 Cs-137 0.08 +/- 0.03 0.07 +/- 0.03 0.07 +/- 0.02 Pass 80-2663, 2664 5/26/2016 K-40 12.44 +/- 0.68 11.64 +/-0.63 12.04 +/- 0.46 Pass 80-2663, 2664 5/26/2016 Tl-208 0.13 +/- 0.02 0.14 +/- 0.03 0.14 +/- 0.02 Pass S0-2663, 2664 5/26/2016 Pb-212 0.43 +/- 0.04 0.41 +/- 0.04 0.42 +/- 0.03 Pass S0-2663, 2664 5/26/2016 Ra-226 1.19 +/- 0.34 0.87 +/- 0.28 1.03 +/- 0.22 Pass 80-2663, 2664 5/26/2016 Ac-228 0.45 +/- 0.09 0.53+/-0.10 0.49 +/- 0.07 Pass SPS-2817, 2818 5/31/2016 K-40 12.10 +/- 0.70 11.05 +/- 0.70 11.58 +/- 0.49 Pass DW-70091, 70092 6/1/2016 Ra-226 5.61 +/- 0.29 5.53 +/- 0.30 5.57 +/- 0.21 Pass DW-70091, 70092 6/1/2016 Ra-228 1.45 +/- 0.58 1.91 +/- 0.62 1.68 +/- 0.42 Pass BS-2925,2926 6/3/2016 K-40 7.74 +/- 0.44 7.86 +/- 0.42 7.80 +/- 0.30 Pass SPS-2796, 2797 6/2/2016 K-40 20.91 +/- 2.38 21.16 +/- 1.82 21.04 +/- 1.50 Pass SPS-2882, 2883 617/2016 K-40 14.64 +/- 0.52 14.60 +/- 0.52 14.62 +/- 0.37 Pass SPS-2882, 2883 6/7/2016 Be-7 2.00 +/- 0.25 1.94 +/- 0.20 1.97 +/- 0.16 Pass DW-70102, 70103 6/13/2016 Ra-226 0.34 +/- 0.09 0.36 +/- 0.08 0.35 +/- 0.06 Pass AS-2

TABLE A-5. In-House "Duplicate" Samples Concentration

Averaged Lab Code Date Analysis First Result Second Result Result Acceptance DW-70102, 70103 6/13/2016 Ra-228 0.93 +/- 0.47 1.11 +/- 0.53 1.02 +/- 0.35 Pass AP-061416 6/14/2016 Gr. Beta 0.026 +/- 0.004 0.023 +/- 0.004 0.024 +/- 0.003 Pass SG-3144, 3145 6/17/2016 Be-7 2.23 +/- 0.12 2.24 +/- 0.12 2.24 +/- 0.08 Pass SG-3144, 3145 6/17/2016 K-40 7.57 +/- 0.25 7.09 +/- 0.23 7.33 +/- 0.17 Pass SPS-3165, 3166 6/22/2016 K-40 21.14 +/- 2.27 22.88 +/- 1.60 22.01+/-1.39 Pass SPS-3323, 3324 6/24/2016 K-40 18.67 +/- 1.57 21.53 +/- 1.65 20.10+/-1.14 Pass WW-3231, 3232 6/27/2016 H-3 414 +/- 104 498 +/- 108 456 +/- 75 Pass AP-3830,3831 6/29/2016 Gr. Beta 0.088 +/- 0.012 0.093 +/- 0.015 0.091 +/- 0.010 Pass AP-070516A 7/5/2016 Gr. Beta 0.018 +/- 0.002 0.014 +/- 0.002 0.016 +/- 0.002 Pass AP-070516B 7/5/2016 Gr. Beta 0.025 +/- 0.005 0.026 +/- 0.005 0.025 +/- 0.004 Pass XWW-3605,3606 717/2016 H-3 3,316 +/- 186 3,316 +/- 181 3,316 +/- 130 Pass DW-70135,70136 7/8/2016 Gr. Alpha 3.68 +/- 1.01 2.76 +/- 0.98 3.22 +/- 0.70 Pass DW-70132,70133 7/8/2016 Ra-226 1.32 +/-0.14 1.11 +/- 0.15 1.22 +/-0.10 Pass DW-70132,70133 7/8/2016 Ra-228 3.92 +/- 0.94 2.94 +/- 0.90 3.43 +/- 0.65 Pass AP-071216 7/12/2016 Gr. Beta 0.014 +/- 0.004 0.018 +/- 0.004 0.016 +/- 0.003 Pass DW-70150,70151 7/14/2016 Gr. Alpha 5.00 +/- 1.06 4.43 +/- 1.04 4.72 +/- 0.74 Pass SPS-3649,3650 7/15/2016 Cs-137 0.12 +/- 0.03 0.12 +/-0.03 0.12 +/- 0.02 Pass SPS-3649, 3650 7/15/2016 K-40 16.68 +/- 0.79 16.52 +/- 0.86 16.6 +/- 0.58 Pass SPS-3649,3650 7/15/2016 Pb-214 1.20 +/- 0.08 1.17 +/- 0.08 1.19 +/- 0.06 Pass SPS-3649,3650 7/15/2016 Ac-?28 1.28 +/- 0.16 1.28 +/- 0.16 1.28 +/- 0.11 Pass AP-071816 7/18/2016 Gr. Beta 0.022 +/- 0.005 0.024 +/- 0.005 0.023 +/- 0.003 Pass DW-70163, 70164 7/19/2016 Gr. Alpha 1.08 +/- 0.66 1.36 +/- 0.70 1.22 +/- 0.48 Pass WW-3761,3762 7/20/2016 H-3 347 +/- 90 466 +/- 96 407 +/-66 Pass SPS-4003,4004 7/23/2016 K-40 7.15 +/- 1.59 6.86 +/- 1.21 7.00 +/- 1.00 Pass AP-072516 7/25/2016 Gr. Beta 0.023 +/- 0.004 0.020 +/- 0.004 0.022 +/- 0.003 Pass VE-3936,3937 7/25/2016 Sr-90 0.048 +/- 0.007 0.058 +/- 0.010 0.053 +/- 0.006 Pass VE-3936,3937 7/25/2016 Be-7 0.49 +/- 0.15 0.51 +/- 0.15 0.50 +/- 0.10 Pass VE-3936,3937 7/25/2016 K-40 4.70 +/- 0.35 4.86 +/- 0.37 4.78 +/- 0.25 Pass VE-3959,3960 7/27/2016 Sr-90 0.002 +/- 0.002 0.003 +/- 0.001 0.003 +/- 0.001 Pass VE-3959,3960 7/27/2016 Be-7 0.30 +/- 0.14 0.25 +/- 0.12 0.27 +/- 0.09 Pass VE-3959,3960 7/27/2016 K-40 4.01 +/- 0.37 4.16+/-0.34 4.08 +/- 0.25 Pass DW-70169,70170 7/28/2016 Ra-226 0.83 +/- 0.11 0.69 +/- 0.11 0.76 +/- 0.08 Pass DW-70169,70170 7/28/2016 Ra-228 1.85 +/- 0.63 1.31 +/- 0.84 1.58 +/- 0.53 Pass AP-080116 8/1/2016 Gr. Beta 0.029 +/- 0.003 0.033 +/- 0.003 0.031 +/- 0.002 Pass SS-4131,4132 8/1/2016 K-40 12.47 +/- 0.71 13.24 +/- 0.81 12.86 +/- 0.54 Pass SS-4131,4132 8/1/2016 Cs-137 0.10+/-0.03 0.13 +/- 0.04 0.12 +/- 0.02 Pass SPS-4087 ,4088 8/2/2016 K-40 17.06 +/- 1.58 19.5 +/- 1.97 18.28 +/- 1.26 Pass WW-4976,4977 8/4/2016 H-3 17,043 +/- 390 16,821 +/- 388 16,932 +/-275 Pass SPS-4266,4267 8/10/2016 K-40 1.06 +/- 0.47 1.69 +/- 0.52 1.375 +/- 0.35 Pass AP-081616 8/16/2016 Gr. Beta 0.029 +/- 0.005 0.025 +/- 0.004 0.027 +/- 0.003 Pass VE-4399,4400 8/18/2016 K-40 3.85 +/- 0.23 3.27 +/- 0.41 3.56 +/- 0.24 Pass VE-4399,4400 8/18/2016 Be-7 0.30 +/- 0.08 0.45 +/- 0.20 0.37 +/- 0.11 Pass WW-5394,5395 8/18/2016 H-3 947 +/- 122 846+/-119 896 +/- 85 Pass SPS-4441,4442 8/22/2016 K-40 20.55 +/- 2.23 19.69 +/- 1.74 20.12 +/- 1.41 Pass AP-082216 8/22/2016 Gr. Beta 0.021 +/- 0.005 0.015 +/- 0.005 0.018 +/- 0.003 Pass VE-4462,4463 8/22/2016 Be-7 0.91 +/- 0.09 0.89 +/- 0.11 0.90 +/- 0.07 Pass VE-4462,4463 8/22/2016 K-40 7.48 +/- 0.26 7.60 +/- 0.23 7.54+/-0.17 Pass WW-4594,4595 8/26/2016 H-3 675 +/- 107 788 +/- 111 731 +/- 77 Pass WW-4663,4664 8/26/2016 H-3 607 +/- 104 501 +/- 100 554 +/- 72 Pass SPS-4529,4530 8/26/2016 K-40 21.98 +/- 2.52 21.85 +/- 1.56 21.92 +/-1.48 Pass AP-083016A 8/30/2016 Gr. Beta 0.030 +/- 0.003 0.035 +/- 0.004 0.033 +/- 0.002 Pass AP-083016B 8/30/2016 Gr. Beta 0.032 +/- 0.009 0.026 +/- 0.004 0.029 +/- 0.005 Pass VE-4615,4616 8/31/2016 K-40 2.96 +/- 0.16 3.11+/-0.17 3.03 +/- 0.11 Pass AS-3

TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance AP-090216 9/2/2016 Gr. Beta 0.022 +/- 0.004 0.027 +/- 0.004 0.024 +/- 0.003 Pass AP-090616 9/6/2016 Gr. Beta 0.023 +/- 0.005 0.023 +/- 0.005 0.023 +/- 0.003 Pass Ml-4751,4752 917/2016 K-40 1,693+/-112 1,760 +/- 99 1,726 +/- 75 Pass Ml-4751,4752 917/2016 Sr-90 1.23 +/- 0.38 1.00 +/- 0.33 1.11 +/-0.25 Pass SW-4772,4773 9/8/2016 H-3 196 +/- 91 236 +/- 93 216 +/- 65 Pass WW-5285,5286 9/13/2016 H-3 18,010 +/- 400 18,686 +/- 407 18,348 +/- 286 Pass Ml-4826,4827 9/14/2016 K-40 1,372.6 +/- 105 1,198.1+/-97 1,285.4 +/- 71 Pass VE-4868,4869 9/15/2016 Gr. Beta 2.50 +/- 0.06 2.57 +/- 0.06 2.53 +/- 0.04 Pass VE-4868,4869 9/15/2016 K-40 2.20 +/- 0.17 2.30 +/- 0.17 2.25 +/-0.12 Pass CF-4934,4935 9/19/2016 K-40 11.47 +/- 0.82 11.76 +/- 0.50 11.61 +/- 0.48 Pass CF-4934,4935 9/19/2016 Be-7 0.43 +/- 0.22 0.46 +/- 0.13 0.45 +/- 0.13 Pass AP-092016 9/20/2016 Gr. Beta 0.021 +/- 0.004 0.017 +/- 0.004 Q.Q19 +/- 0.003 Pass DW-70196,70197 9/20/2016 Gr. Alpha 13.8 +/- 1.36 15.28+/-1.36 14.54 +/- 0.96 Pass F-4955,4956 9/20/2016 K-40 3.40 +/- 0.44 2.86 +/- 0.39 3.13 +/- 0.30 Pass VE-5044,5045 9/20/2016 Be-7 0.46 +/- 0.05 0.50 +/- 0.11 0.48 +/- 0.06 Pass VE-5044,5045 9/20/2016 K-40 4.37 +/- 0.12 4.68 +/- 0.24 4.53 +/-0.13 Pass WW-5219,5220 9/20/2016 H-3 63,744 +/- 743 64,755 +/- 749 64,250 +/- 527 Pass SPS-5087,5088 9/23/2016 K-40 21.04 +/- 2.32 18.84+/-1.88 19.94+/-1.49 Pass AP-092716 9/27/2016 Gr. Beta 0.031 +/- 0.005 0.032 +/- 0.005 0.031 +/- 0.003 Pass AP-5660,5661 9/28/2016 Be-7 0.093 +/- 0.014 0.086 +/- 0.019 0.089 +/- 0.012 Pass AP-5681,5682 9/27/2016 Be-7 0.079 +/- 0.019 0.071 +/- 0.015 0.075 +/- 0.012 Pass VE-5110,5111 9/28/2016 K-40 1.82 +/- 0.15 2.14+/-0.18 1.98 +/- 0.12 Pass AP-5154,5155 9/29/2016 Be-7 0.237 +/- 0.116 0.195 +/- 0.096 0.216 +/- 0.075 Pass AP-5702,5703 9/30/2016 Be-7 0.084 +/- 0.015 0.070 +/- 0.018 0.077 +/- 0.012 Pass Ml-5264,5265 10/4/2016 K-40 1,636 +/- 128 1,610+/-124 1,623 +/- 89 Pass Ml-5264,5265 10/4/2016 Sr-90 2.00 +/- 0.44 1.28 +/- 0.37 1.64 +/- 0.29 Pass SS-5547,5548 10/11/2016 Gr. Beta 11.27+/-1.19 9.47 +/- 1.20 10.37 +/- 0.84 Pass SS-5547,5548 10/11/2016 K-40 8.03 +/- 0.45 7.23 +/- 0.46 7.63 +/- 0.32 Pass SS-5547,5548 10/11/2016 Tl-208 0.04 +/- 0.02 0.04 +/- 0.02 0.04 +/- 0.01 Pass SS-5547,5548 10/11/2016 Bi-214 0.14 +/- 0.03 0.12 +/- 0.03 0.13 +/- 0.02 Pass SS-5547,5548 10/11/2016 Pb-212 0.12 +/- 0.02 0.11 +/- 0.02 0.11 +/- 0.01 Pass SS-5547,5548 10/11/2016 Ac-228 0.10 +/- 0.05 0.16 +/- 0.05 0.13 +/- 0.04 Pass AP-101116 10/11/2016 Gr. Beta 0.032 +/- 0.004 0.028 +/- 0.004 0.030 +/- 0.003 Pass WW-5526.5527 10/11/2016 H-3 18,865 +/- 408 18,904 +/-408 18,884 +/- 289 Pass WW-5639,5640 10/19/2016 H-3 192 +/- 103 52 +/-98 122 +/- 71 Pass WW-5723,5724 10/18/2016 H-3 36,012 +/- 560 36,207 +/- 561 36,110 +/- 396 Pass F-5811,5812 10/20/2016 K-40 0.91 +/- 0.30 0.75 +/- 0.22 0.83 +/- 0.19 Pass S0-5900,5901 10/22/2016 Cs-137 0.05 +/- 0.02 0.03 +/- 0.02 0.04 +/- 0.02 Pass S0-5900,5901 10/22/2016 K-40 9.82 +/-a.sci 10.77 +/- 0.61 10.29 +/- 0.43 Pass S0-5900,5901 10/22/2016 Tl-208 0.10 +/- 0.02 0.14 +/- 0.03 0.12 +/- 0.02 Pass S0-5900,5901 10/22/2016 Pb-212 0.32 +/- 0.03 0.33 +/- 0.03 0.32 +/- 0.02 Pass S0-5900,5901 10/22/2016 Bi-214 0.20 +/- 0.04 0.27 +/- 0.04 0.23 +/- 0.03 Pass S0-5900,5901 10/22/2016 Ac-228 0.41 +/- 0.08 0.48 +/- 0.09 0.44 +/- 0.06 Pass S0-5900,5901 10/22/2016 Ra-226 0.45 +/- 0.23 0.61 +/- 0.27 0.53 +/- 0.18 Pass S0-5900,5901 10/22/2016 Gr. Beta 16.49+/-1.01 17.71 +/-1.03 17.10 +/- 0.72 Pass SS-5879,5880 10/25/2016 K-40 14.94 +/- 0.83 15.26 +/- 0.84 15.10 +/- 0.59 Pass SS-5879,5880 10/25/2016 Cs-137 0.06 +/- 0.03 0.09 +/- 0.04 0.08 +/- 0.02 Pass LW-6072,6073 10/27/2016 Gr. Beta 0.88 +/- 0.49 1.53 +/- 0.56 1.21 +/- 0.37 Pass BS-8009, 6010 10/27/2016 Cs-137 0.14 +/- 0.08 0.13 +/- 0.06 0.13 +/-0.05 Pass BS-8009, 6010 10/27/2016 K-40 17.04 +/- 1.58 18.30+/-1.42 17.67+/-1.06 Pass F-8211,6212 10/28/2016 Gr. Beta 3.25 +/- 0.07 3.27 +/- 0.07 3.26 +/- 0.05 Pass F-8211,6212 10/28/2016 K-40 2.45 +/- 0.33 2.49 +/- 0.37 2.47 +/- 0.25 Pass DW-70230, 70231 10/28/2016 Ra-226 4.00 +/- 0.20 4.10 +/- 0.30 4.05 +/-0.18 Pass DW-70230, 70231 10/28/2016 Ra-228 5.30 +/- 0.80 5.20 +/- 0.80 5.25 +/- 0.57 Pass F-8093,6094 10/31/2016 K-40 3.77 +/- 0.50 3.51 +/- 0.44 3.64 +/- 0.33 Pass AS-4

TABLE A-5. In-House "Duplicate" Samples Concentration a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance AP-110116 11/1/2016 Gr. Beta 0.021 +/- 0.004 0.024 +/- 0.004 0.023 +/- 0.003 Pass S-5963, 5964 11/1/2016 K-40 20.35 +/- 2.29 18.59 +/- 1.90 19.47 +/- 1.49 Pass SG-6119, 6120 11/1/2016 Ac-228 5.70 +/- 0.44 6.28 +/- 0.57 5.99 +/- 0.36 Pass SG-6119, 6120 11/1/2016 Gr.Alpha 21.59 +/- 1.88 24.35 +/- 1.93 22.97 +/- 1.35 Pass SG-6119, 6120 11/1/2016 K-40 4.89+/-1.10 5.90 +/- 1.08 5.40 +/- 0.77 Pass SG-6119, 6120 11/1/2016 Pb-214 3.99 +/- 0.21 4.35 +/- 0.32 4.17 +/- 0.19 Pass S-6051 , 6052 11/4/2016 K-40 7.05 +/- 0.60 7.56 +/- 0.53 7.31 +/- 0.40 Pass WW-6297, 6298 11/8/2016 H-3 207 +/- 98 165 +/- 97 186 +/- 69 Pass WW-6341,6342 11/8/2016 H-3 1,356 +/- 140 1,404+/-141 1,380 +/- 99 Pass S0-6406,6407 11/9/2016 Cs-137 0.36 +/- 0.04 0.43 +/- 0.05 0.40 +/- 0.03 Pass S0-6406,6407 11/9/2016 K-40 10.90 +/- 0.68 11.29 +/- 0.74 11.09 +/-0.50 Pass AP-111416 11/14/2016 Gr. Beta 0.024 +/- 0.005 0.021 +/- 0.006 0.022 +/- 0.004 Pass WW-6829,6830 11/15/2016 H-3 39,982 +/- 589 40,315 +/- 591 40,149 +/-417 Pass DW-70239, 70240 11/17/2016 Gr.Alpha 7.99 +/- 1.15 6.41 +/- 1.05 7.20 +/- 0.78 Pass AP-112216 11/22/2016 Gr. Beta 0.049 +/- 0.005 0.045 +/- 0.005 0.047 +/- 0.003 Pass S-6473, 6474 11/24/2016 K-40 19.37 +/- 1.97 23.80 +/- 3.54 21.58 +/- 2.02 Pass SG-6938, 6939 11/28/2016 Ac-228 18.99 +/- 0.59 19.92 +/- 0.79 19.46 +/- 0.49 Pass SG-6938, 6939 11/28/2016 Pb-214 15.28 +/- 0.34 14.96 +/- 0.43 15.12 +/- 0.27 Pass AP-120116 12/1/2016 Gr. Beta 0.029 +/- 0.003 0.030 +/- 0.003 0.030 +/- 0.002 Pass F-6567,6568 12/1/2016 K-40 3.76 +/- 0.40 3.83 +/- 0.46 3.80 +/- 0.30 Pass S-6522, 6523 12/1/2016 Ac-228 1.08 +/-0.13 1.29 +/- 0.16 1.19 +/-0.10 Pass S-6522, 6523 12/1/2016 Pb-214 1.00 +/- 0.08 1.01 +/- 0.09 1.01 +/- 0.06 Pass S-6609, 6610 12/1/2016 K-40 15.57+/-1.01 15.99 +/- 0.78 15.78 +/- 0.64 Pass S-6718, 6719 1217/2016 K-40 18.19 +/-2.13 18.76 +/- 1.80 18.48 +/- 1.39 ., Pass WW-6784, 6785 1217/2016 H-3 922+/-117 905 +/- 116 914 +/- 82 Pass AP-121216 12/12/2016 Gr. Beta 0.026 +/- 0.005 0.028 +/- 0.005 0.027 +/- 0.003 Pass AP-7178,7179 1/3/2017 Be-7 0.047 +/- 0.015 0.062 +/- 0.017 0.054 +/- 0.012 Pass Note: Duplicate analyses are performed on every twentieth sample received in-house. Results are not listed for those analyses with activities that measure below the LLD.

Results are reported in units of pCi/L, except for air filters (pCi/Filler or pCi/m3), food products, vegetation, soil and sediment (pCi/g).

AS-5

TABLEA-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP).

Concentration a Reference Known Control 0

Lab Code b Date Analysis Laboratory result Activity Limits Acceptance MAS0-1053 2/1/2016 Ni-63 1,206 +/- 20 1250 875 - 1625 Pass MAS0-1053 2/1/2016 Sr-90 0.65 +/- 1.27 0.00 NA 0 Pass MAS0-1053 2/1/2016 Tc-99 0.1 +/- 5.5 0.0 NA 0 Pass MAS0-1053 2/1/2016 Cs-134 908 +/- 26 1030 721 -1339 Pass MAS0-1053 2/1/2016 Cs-137 0.10 +/-6.20 0.00 NA 0 Pass MAS0-1053 2/1/2016 Co-57 1058 +/- 26 992 694 -1290 Pass MAS0-1053 2/1/2016 Co-60 1229 +/- 28 1190 833 - 1547 Pass MAS0-1053 2/1/2016 Mn-54 1235 +/- 43 1160 812 - 1508 Pass MAS0-1053 2/1/2016 Zn-65 753 +/- 64 692 484 - 900 Pass MAS0-1053 2/1/2016 K-40 753 +/- 140 607 425 - 789 Pass MAS0-1053 2/1/2016 Am-241 79 +/-6 103 72 -134 Pass MAS0-1053 2/1/2016 Pu-238 73.9 +/- 9.2 63.6 44.5 - 82.7 Pass MAS0-1053 2/1/2016 Pu-239/240 0.76 +/- 1.34 0.21 NAd Pass MAS0-1053 2/1/2016 U-234/233 45.0 +/- 5.1 45.9 32.1 - 59.7 Pass MAS0-1053 2/1/2016 U-238 129 +/-9 146 102 - 190 Pass MAW-989 2/1/2016 Am-241 0.018 +/- 0.015 0.00 NA 0 Pass MAW-989 2/1/2016 H-3 0.2 +/- 2.8 0.0 NA 0 Pass MAW-989 2/1/2016 Ni-63 12.8 +/- 2.7 12.3 ' 8.6 - 16.0 Pass MAW-989 2/1/2016 Sr-90 8.70 +/- 1.20 8.74 6.12 -11.36 Pass MAW-989 2/1/2016 Tc-99 -1.1 +/- 0.6 0.0 NA 0 Pass MAW-989 2/1/2016 Cs-134 15.5 +/- 0.3 16.1 11.3 +/- 20.9 Pass MAW-989 2/1/2016 Cs-137 23.7 +/- 0.5 21.2 14.8 - 27.6 Pass MAW-989e 2/1/2016 Co-57 1.38 +/-0.12 0.00 NA 0 Fail MAW-989 2/1/2016 Co-60 12.5 +/- 0.3 11.8 8.3 - 15.3 Pass MAW-989 2/1/2016 Mn-54 12.2 +/- 0.4 11.1 7.8 - 14.4 Pass MAW-989 2/1/2016 Zn-65 15.7 +/- 0.7 13.6 9.5 - 17.7 Pass MAW-989 2/1/2016 K-40 288 +/-5 251 176 - 326 Pass MAW-989 2/1/2016 Fe-55 17.3 +/- 7.0 16.2 11.3 -21.1 Pass MAW-989 2/1/2016 Ra-226 0.710 +/- 0.070 0.718 0.503 - 0.933 Pass MAW-989 2/1/2016 Pu-238 1.280 +/- 0.110 1.244 0.871 +/- 1.617 Pass MAW-989 2/1/2016 Pu-239/240 0.640 +/- 0.080 0.641 0.449 - 0.833 Pass MAW-989 2/1/2016 U-234/233 1.39 +/- 0.12 1.48 1.04 -1.92 Pass MAW-989 2/1/2016 U-238 1.43 +/- 0.12 1.53 1.07 -1.99 Pass MAW-893 2/1/2016 Gross Alpha 0.600 +/- 0.050 0.673 0.202 -1.144 Pass MAW-893 2/1/2016 Gross Beta 2.10 +/- 0.06 2.15 1.08 - 3.23 Pass MAW-896 2/1/2016 1-129 3.67 +/- 0.20 3.85 2.70 - 5.01 Pass MAAP-1056 2/1/2016 Gross Alpha 0.39 +/- 0.05 1.20 0.36 - 2.04 Pass MAAP-1056 2/1/2016 Gross Beta 1.03 +/- 0.07 0.79 0.40 - 1.19 Pass A6-1

TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP).

Concentration a Reference Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAAP-1057 2/1/2016 Sr-90 1.34 +/- 0.15 1.38 0.97 +/- 1.79 Pass MAAP-1057 2/1/2016 Cs-134 -0.01 +/- 0.03 0.00 NA c Pass MAAP-1057 2/1/2016 Cs-137 2.57 +/- 0.10 2.30 1.61 - 2.99 Pass MAAP-1057 2/1/2016 Co-57 3.01 +/- 0.06 2.94 2.06 - 3.82 Pass MAAP-1057 2/1/2016 Co-60 4.28 +/- 0.10 4.02 2.81 - 5.23 Pass MAAP-1057 2/1/2016 Mn-54 4.90 +/-0.13 4.53 3.17 - 5.89 Pass MAAP-1057 2/1/2016 Zn-65 4.09 +/-0.18 3.57 2.50 -4.64 Pass MAAP-1057 2/1/2016 Am-241 0.059 +/- 0.015 0.0805 0.0564 - 0.1047 Pass MAAP-1057 2/1/2016 Pu-238 0.066 +/- 0.020 0.0637 0.0446 - 0.0828 Pass MAAP-1057 2/1/2016 Pu-239/240 0.074 +/- 0.020 0.099 NA d Pass MAAP-1057 2/1/2016 U-234/233 0.151 +/- 0.026 0.165 0.116 - 0.215 Pass MAAP-1057 2/1/2016 U-238 0.160 +/- 0.026 0.172 0.120 - 0.224 Pass MAVE-1050 2/1/2016 Cs-134 9.83 +/- 0.19 10.62 7.43 - 13.81 Pass MAVE-1050 2/1/2016 Cs-137 6.06 +/- 0.19 5.62 3.93 - 7.31 Pass MAVE-1050 2/1/2016 Co-57 13.8 +/- 0.2 11.8 8.3 - 15.3 Pass MAVE-1050 2/1/2016 Co-60 0.022 +/- 0.040 0.00 NA c Pass MAVE-1050 2/1/2016 Mn-54 0.009 +/- 0.044 0.000 NA c Pass MAVE-1050 2/1/2016 Zn-65 10.67 +/- 0.39 9.60 6.70 - 12.50 Pass MAS0-47801 8/1/2016 Ni-63 648 +/- 14 990 693 - 1287 Fail MAS0-47809 8/1/2016 Ni-63 902 +/- 46 990 693 - 1287 Pass MAS0-4780 8/1/2016 Sr-90 757 +/- 16 894 626 - 1162 Pass MAS0-4780 8/1/2016 Tc-99 559 +/- 12 556 389 - 723 Pass MAS0-4780 8/1/2016 Cs-134 0.93 +/- 2.92 0.00 NA c Pass MAS0-4780 8/1/2016 Cs-137 1061 +/-12 1067 747 - 1387 Pass MAS0-4780 8/1/2016 Co-57 1178 +/-8 1190 833 - 1547 Pass MAS0-4780 8/1/2016 Co-60 841 +/-9 851 596 - 1106 Pass MAS0-4780 8/1/2016 Mn-54 0.69 +/- 2.53 0.00 NA c Pass MAS0-4780 8/1/2016 Zn-65 724 +/- 19 695 487 - 904 Pass MAS0-4780 8/1/2016 K-40 566 +/- 52 588 412 - 764 Pass MAS0-4780 8/1/2016 Am-241 0.494 +/- 0.698 0.000 NA c Pass MAS0-4780 8/1/2016 Pu-238 69.7 +/- 7.4 70.4 49.3 - 91.5 Pass MAS0-4780 8/1/2016 Pu-239/240 53.9 +/- 6.3 53.8 37.7 -69.9 Pass MAS0-4780h 8/1 /2016 U-233/234 46.8 +/- 3.9 122 85 -159 Fail MAS0-4780h 8/1/2016 U-238 46.6 +/- 3.9 121 85 - 157 Fail MAW-4776 8/1/2016 1-129 4.40 +/- 0.20 4.54 3.18 - 5.90 Pass MAVE-4782 8/1/2016 Cs-134 -0.01 +/- 0.05 0.00 NA c Pass MAVE-4782 8/1/2016 Cs-137 6.18 +/- 0.20 5.54 3.88 -7.20 Pass MAVE-4782 8/1/2016 Co-57 8.13 +/- 0.16 6.81 4.77 - 8.85 Pass MAVE-4782 8/1/2016 Co-60 5.30 +/- 0.15 4.86 3.40 - 6.32 Pass MAVE-4782 8/1/2016 Mn-54 8.08 +/- 0.24 7.27 5.09 - 9.45 Pass MAVE-4782 8/1/2016 Zn-65 6.24 +/- 0.36 5.40 3.78 - 7.02 Pass A6-2

TABLE A-6. Department of Energy's Mixed An.alyte Performance Evaluation Program (MAPEP).

Concentration a 0

Reference Known NA 0

Lab Code b Date Analysis Laboratory result Activity Limits Acceptance MAAP-4784 8/1/2016 Sr-90 1.18 +/- 0.10 1.03 0.72 - 1.34 Pass MAAP-4784 8/1/2016 Cs-134 1.58 +/- 0.08 2.04 1.43 - 2.65 Pass MAAP-4784 8/1/2016 Cs-137 1.85 +/- 0.09 1.78 1.25 - 2.31 Pass MAAP-4784 8/1/2016 Co-57 2.39 +/- 0.52 2.48 1.74 - 3.22 Pass MAAP-4784 8/1/2016 Co-60 3.22 +/- 0.08 3.26 2.28 - 4.24 Pass MAAP-4784 8/1/2016 Mn-54 2.82 +/- 0.12 2.75 1.93 - 3.58 Pass 0

MAAP-4784 8/1/2016 Zn-65 .-'

-0.0.15 +/- 0.062 0.00 NA Pass 0

MAAP-4784 8/1/2016 Am-241 -0.001 +/- 0.006 0.00 NA Pass MAAP-4784 8/1/2016 Pu-238 0.075 +/- 0.022 0.069 0.049 - 0.090 Pass MAAP-4784 8/1/2016 Pu-239/240 0.048 +/- 0.015 0.054 0.038 - 0.070 Pass MAAP-4784 8/1/2016 U-234/233 0.151 +/- 0.036 0.150 0.105 - 0.195 Pass MAAP-4784 8/1/2016 U-238 0.147 +/- 0.034 0.156 0.109 - 0.203 Pass MAW-4778 8/1/2016 H-3 365 +/- 11 334 234 -434 Pass MAW-4778 8/1/2016 Fe-55 23.6 +/- 16.3 21.5 15.1 +/- 28.0 Pass MAW-4778 8/1/2016 Ni-63 17.0 +/- 2.8 17.2 12.0 +/- 22.4 Pass 0

MAW-4778 8/1/2016 Sr-90 0.17 +/-0.28 0.00 NA Pass MAW-4778 8/1/2016 Tc-99 9.50 +/- 0.41 11.60 8.10 -15.10 Pass MAW-4778 8/1/2016 Cs-134 22.6 +/- 0.4 23.9 16.7 - 31.1 Pass 0

MAW-4778 8/1/2016 Cs-137 0.018 +/- 0.117 0.00 NA Pass MAW-4778 8/1/2016 Co-57 27.6 +/- 0.2 27.3 19.1 +/- 35.5 Pass 0

MAW-4778 8/1/2016 Co-60 0.018 +/- 0.090 0.00 NA Pass MAW-4778 8/1/2016 Mn-54 16.2 +/- 0.4 14.8 10.4 - 19.2 Pass MAW-4778 8/1/2016 Zn-65 19.3 +/- 0.7 17.4 12.2 - 22.6 Pass MAW-4778 8/1/2016 K-40 286 +/- 6 252 176 - 328 Pass MAW-4778 8/1/2016 Ra-226 1.48 +/- 0.09 1.33 0.93 ~ 1.73 Pass MAW-4778 8/1/2016 Pu-238 1.09 +/- 0.13 1.13 0.79 - 1.47 Pass MAW-4778 8/1/2016 Pu-239/240 0.003 +/- 0.011 0.016 NA d Pass MAW-4778 8/1/2016 U-234/233 1.80 +/- 0.13 1.86 1.30 - 2.42 Pass MAW-4778 8/1/2016 U-238 1.77 +/- 0.13 1.92 1.34 - 2.50 Pass MAW-4778 8/1/2016 Am-241 0.678 +/- 0.086 0.814 0.570 +/- 1.058 Pass

Results are reported in units of Bq/kg (soil), Bq/L (water) or Sq/total sample (filters, vegetation).

b Laboratory codes as follows: MAW (water), MAAP (air filter), MASO (soil), MAVE (vegetation).

0 MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". MAPEP does not provide control limits.

d Provided in the series for "sensitivity evaluation". MAPEP does not provide control limits.

The laboratory properly identified the Sn-75 interfering peak in the vicinity of Co-57 and stated so in the comment field. MAPEP requires results to be reported as an activity with an uncertainty. Since the calculated uncertainty was less than the activity MAPEP interpreted the submitted result as a "false positive" resulting in a failure.

1 Original analysis for Ni-63 failed.

9 Reanalysis with a smaller aliquot resulted in acceptable results. An investigation is in process to identify better techniques for analyzing samples with complex matrices.

h MAPEP states that samples contain two fractions of Uranium; one that is soluble in concentrated HN0 3 and HCI acid and one that is "fundamentally insoluble in these acids". They also state that HF treatment can not assure complete dissolution.

Results are consistent with measuring the soluble form.

A6-3

8 TABLEA-7. lnterlaboratory Comparison Crosscheck Program, Environmental Resource Associates (ERA)

MRADStudy Concentration a Lab Code b Date Analysis Laboratory ERA Control Result Result Limits Acceptance ERAP-1101 3/14/2016 Am-241 37.3 45.9 28.3 - 62.1 Pass ERAP-1101 3/14/2016 Co-60 637 623 482 - 778 Pass ERAP-1101 3/14/2016 Cs-134 251 304 193 - 377 Pass ERAP-1101 3/14/2016 Cs-137 1,273 1,150 864-1,510 Pass ERAP-1101 3/14/2016 Fe-55 < 162 126 39.1 - 246 Pass ERAP-1101 3/14/2016 Mn-54 < 2.64 < 50.0 0.00 - 50.0 Pass ERAP-1101 3/14/2016 Pu-238 68.0 70.5 48.3 -92.7 Pass

' Pass ERAP-1101 3/14/2016 Pu-239/240 54.1 54.8 39.70 - 71.60 ERAP-1101 3/14/2016 Sr-90 139 150 73.3 - 225.0 Pass ERAP-1101 3/14/2016 U-233/234 59.3 64.8 40.2 - 97.7 Pass ERAP-1101 3/14/2016 U-238 55.5 64.2 41.5 - 88.8 Pass ERAP-1101 3/14/2016 Zn-65 428 356 255 -492 Pass ERAP-1101 3/14/2016 Gr. Alpha 98.0 70.1 23.5 - 109 Pass ERAP-1101 3/14/2016 Gr. Beta 78.6 54.4 34.4 - 79.3 Pass ERS0-11.05 3/14/2016 Am-241 1,030 1,360 796 -1,770 Pass ERS0-1105 3/14/2016 Ac-228 1,540 1,240 795 -1,720 Pass ERS0-1105. 3/14/2016 Bi-212 1,550 1,240 330 -1,820 Pass ERS0-1105 3/14/2016 Bi-214 3,100 3,530 2, 130 - 5,080 Pass ERS0-1105 3/14/2016 Co-60 5,600 5,490 3,710 - 7,560 Pass ERS0-1105 3/14/2016 Cs-134 3,030 3,450 2,260 - 4,140 Pass ERS0-1105 3/14/2016 Cs-137 4,440 4,310 3,300 - 5,550 Pass ERS0-1105 3/14/2016 K-40 10,300 10,600 7,740 - 14,200 Pass ERS0-1105 3/14/2016 Mn-54 < 50.8 < 1000 0.0 - 1,000 Pass ERS0-1105 3/14/2016 Pb-212 1,140 1,240 812 -1,730 Pass ERS0-1105 3/14/2016 Pb-214 3,190 3,710 2, 170 - 5,530 Pass ERS0-1105 3/14/2016 Pu-238 680 658 396 - 908 Pass ERS0-1105 3/14/2016 Pu-239/240 460 496 324.- 0,685 *Pass ERS0-1105 3/14/2016 Sr-90 7,740 8,560 3,260 - 13,500 Pass ERS0-1105 3/14/2016 Th-234 3,630 3,430 t,080 - 6,450 Pass ERS0-1105 3/14/2016 U-233/234 3,090 3,460 2, 110 - 4,430 Pass ERS0-1105 3/14/2016 U-238 3,280 3,430 2, 120 - 4,350 Pass ERS0-1105 3/14/2016 Zn-65 2,940 2,450 1,950 - 3,260 Pass ERW-1115 3/14/2016 Gr. Alpha 105.0 117.0 41.5 -181.0 Pass ERW-1115 3/14/2016 Gr. Beta 76.2 75.5 43.2 - 112.0 Pass ERW-1117 3/14/2016 H-3 8,870 8,650 5,800 - 12,300 Pass A7-1

TABLEA-7. lnterlaboratory Comparison Crosscheck Program, Environmental Resource Associates (ERA) 8

MRAD Study Concentration a Lab Code b Date Analysis Laboratory ERA Control Result Result Limits Acceptance ERVE-1108 3/14/2016 Am-241 1,930 2,120 1,300 - 2,820 Pass

. ERVE-1108 3/14/2016 Cm-244 1,294 1,560 764 -2,430 Pass ERVE-1108 3/14/2016 Co-60 1, 164 1, 100 759 - 1,540 Pass ERVE-1108 3/14/2016 Cs-134 1,056 1,070 687 - 1,390 Pass ERVE-1108 3/14/2016 Cs-137 930 838 608 - 1,170 Pass ERVE-1108 3/14/2016 K-40 32,200 31,000 22,400 - 43,500 Pass ERVE-1108 3/14/2016 Mn-54 < 24.5 < 300 0.00 - 300 Pass ERVE-1108 3/14/2016 Zn-65 3,320 2,820 2,030 - 3,960 Pass ERVE-1108 3/14/2016 Pu-238 3,410 2,810 1,680 - 3,850 Pass ERVE-1108 3/14/2016 Pu-239/240 4,120 3,640 2,230 - 5,010 Pass ERVE-1108 3/14/2016 Sr-90 8,120 8,710 4,960 - 11,500 Pass ERVE-1108 3/14/2016 U-233/234 4,350 4,160 2,740 - 5,340 Pass ERVE-1108 3/14/2016 U-238 4,220 4,120 2,750 - 5,230 Pass ERW-1111 3/14/2016 Am-241 113 121 81.5-162 Pass ERW-1111 3/14/2016 Co-60 1, 120 1,050 912 -1,230 Pass ERW-1111 3/14/2016 Cs-134 806 842 618 - 968 Pass ERW-1111 3/14/2016 Cs-137 1, 190 1, 100 934 - 1,320 Pass ERW-1111 3/14/2016 Mn-54 < 5.89 < 100 0.00 - 100 Pass ERW-1111 3/14/2016 Pu-238 159 138 102 - 172 Pass ERW-1111 3/14/2016 Pu-239/240 113 98.7 76.6 - 124 Pass ERW-1111 3/14/2016 U-233/234 46.9 52.7 39.6 - 68.0 Pass ERW-1111 3/14/2016 U-238 50.4 52.3 39.9 - 64.2 Pass ERW-1111 3/14/2016 Zn-65 1, 160 1,010 842 -1,270 Pass ERW-1111 3/14/2016 Fe-55 1,600 1,650 984 - 2,240 Pass ERW-1111 3/14/2016 Sr-90 430 434 283 - 574 Pass a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the Environmental Measurements Laboratory Quality Assessment Program (EML).

b Laboratory codes as follows: ERW (water), ERAP (air filter), ERSO (soil), ERVE (vegetation). Results are reported in units of pCi/L, except for air filters (pCi/Filter), vegetation and soil (pCi/kg).

c Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA.

A7-2

Appendix B Summary Tables in the format of NRC Radiological Assessment Branch Technical Position Revision 1, November 1979 Page B-1

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

Name of-Facility: Wolf Creek Generating Station Docket No.: 50-482 Location of Facility: Coffe~ Count~. Kansas Reporting Period: Annual 2016 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Nonroutine (Unit of Analysis Performed Detection **Mean (f) Distance and **Mean (f) **Mean (f) Reported Measurement) (LLD) **Range Direction **Range **Range Measurements **

Air Particulate Station 53 3

(pCi/m ) Gross Beta (318) 0.01 0.025 (265/265) 37 0.026 (53/53) 0.025 (53/53) 0 (0.009 - 0.056) 2.0 miles NNW (0.013 - 0.052) (0.010 - 0.050)

Gamma (24)

Be-7 0.081 (20/20) 32 0.084 (4/4) 0.083 (4/4) 0 (0.065 - 0.107) 3.1 miles WNW (0.073 - 0.104) (0.073 - 0.100)

Air Radioiodine Station 53 (pCi/m 3 ) 1-131 (318) 0.07 - (0/265) N/A N/A - (0/53) 0 Direct Radiation Stations 39 & 53 Dosimeters (mR per std. Gamma Dose 18.1 (160/160) 38 21.1 (4/4) 18.7 (8/8) 0 90-day Qtr.) (168) (10.5 - 22.5) 1.2 miles NW . (20.0 - 22.0) (16.4 - 21.5)

Surface Water JRR (pCi/I) Gamma (24) - (0/12) N/A N/A - (0/12) 0 Tritium (24) 3,000 10,461 (12/12) SP 10,461 (12/12) - (0/12) 0 (7,971-12,300) 3.2 miles SSE (7,971-12,300)

Fe-55 (8) - (0/4) N/A N/A - (0/4) 0 Ground Water B-12 (pCi/I) 1-131 (32) 1 - (0/28) N/A N/A - (0/4). 0 Gamma (32) - (0/28) N/A N/A - (0/4) 0 Tritium (32) 2,000 - (0/28) N/A N/A - (0/4) -o Page B-2

- Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (f)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

Name of Facility: Wolf Creek Generating Station Docket No.: 50-482 Location of Facility: Coffey County, Kansas Reporting Period: Annual 2016 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Non routine (Unit of Analysis Performed Detection **Mean (f) Distance and **Mean (f) **Mean (f) Reported Measurement) (LLD) **Range Direction **Range **Range Measurements **

Drinking BW-15 Water 1-131(24) 1 - (0/12) N/A N/A - (0/12) 0 (pCi/I)

Gross Beta (24) 4 . 2.9 (12/12) 10-DW 2.9 (12/12) 2.7 (12/12) 0 (1.9- 4.0) 26.1 miles SSE (1.9- 4.0) (2.2-3.2)

Gamma (24) - (0/12) N/A N/A - (0/12) 0 Tritium (8) 2,000 228 (1/4) 10-DW 228 (1/4) - (0/4) 0 26.1 miles SSE Shoreline Gamma (6) JRR Sediment (pCi/kg dry) K-40 11,516 (4/4) EEA 11,810 (2/2) 13,981 (2/2) 0 (10,437-12,465) 3.0 miles NNW (11, 155-12,465) (11,582-16,380)

Cs-137 172 (4/4) EEA 184 (2/2) 113(1/2) 0 (97 - 271) 3.0 miles NNW (97 - 271)

Fish Gamma (22) JRR (pCi/kg wet)

K-40 3,477 (10/10) . CCL 3,477 (10/10) . 3,452 (12/12) 0 (2,772 - 4,133) 0.6 miles E to (2, 772 - 4, 133) (3, 128 - 3,922)

NNW Tritium (22) 7,274 (10/10) CCL 7,274 (10/10) - (0/12) 0 (6,407 - 8,243) 0.6 miles E to (6,407 - 8,243)

NNW Page B-3

- Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (f)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

Name of Facility: Wolf Creek Generating Station Docket No.: 50-482 Location of Facility: Coffey County, Kansas Reporting Period: Annual 2016 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Non routine (Unit of Analysis Performed Detection **Mean (f) Distance and **Mean (f) **Mean (f) Reported Measurement) (LLD) **Range Direction **Range **Range Measurements **

Food and Gamma (28) D-2 Garden (pCi/kg wet) Be-7 912 (21/21) A-3 985 (7/7) 1,060 (7/7) 0 (368 - 2,093) 2.6 miles N (368 - 2,093) (555 - 1,880)

K-40 5,751 (21/21) H-2 6,297 (7/7) 6,298 (7/7) 0 (3,723 - 7,323) 3.0 miles SSE (4,681 - 7,323) (4,597 - 7,484)

Crops Gamma (4) NR-U1 (pCi/kg wet)

K-40 9,455 (2/2) NR-D1 15,833 (1/1) 8,369 (2/2) 0 (3,078 - 15,833) 8.9 miles S (2,797 -13,941)

Bottom Gamma (20) JRR Sediment (pCi/kg dry)

K-40 10,910 (18/18) SC 14,051 (1/1) 15,719 (2/2) 0 (5,344 - 14,051) 0.8 miles NNW (14,399- 17,039)

Cs-137 79 (2/18) UHS 86 (1/10) 138 (1/2) 0 (73- 86) 0.6 miles E Fe-55 (14) - (0/14) N/A N/A N/A 0 HTD (2)

Sr-90 56 (1/2) UHS 56 (1/2) N/A 0 0.6 miles E Page B-4

- Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (f)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

Name of Facility: Wolf Creek Generating Station Docket No.:* 50-482 Location of Facility: Coffey County. Kansas Reporting Period: Annual 2016 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Nonroutine (Unit of Analysis Performed Detection **Mean (f) Distance and ** M,ean (f) * **Mean (f) Reported Measurement) (LLD) **Range Direction **Range **Range Measurements **

Aquatic Gamma (3) No Control Vegetation (pCi/kg wet) Be-7 582 (3/3) MUDS 705 (1/1) 0 (453 - 705) 1.5 miles WNW K-40 2,561 (3/3) EEA 2;705 (2/2) 0 (2,253 - 3, 156) 3.0 miles NNW (2,253 - 3, 156)

Terrestrial Gamma (1) No Control Vegetation (pCi/kg wet) Be-7 2,233 (1/1) EEA 2,233 (1/1) 0 3.0 miles NNW K-40 7,569 (1/1) EEA 7,569 (1/1) 0 3.0 miles N.NW Soil Gamma (1) No Control (pCi/kg dry) 1 K-40 10,764 (1/1) EEA 10,764 (1/1) 0 3.0 miles NNW

/

Cs-137 100(1/1) EEA 100 (1/1) 0 3.0 miles NNW Deer Gamma (1) No Control (pCi/kg wet)

K-40 3,337 (1/1) R2.0 3,337 (1/1) 0 2.0 miles NNW Tritium (1) 169 (1/1) R2.0 169 (1/1) 0 2.0 miles NNW Page B-5

- Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (f)

APPENDIXC INDIVIDUAL SAMPLE RESULTS 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station

Air Particulate Filters and Radioiodine Canisters Location: 002 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 29-Dec-15 04-Jan-16 257 0.047 +/- 0.006 < 0.012 04-Jan-16 11-Jan-16 297 0.026 +/- 0.005 < 0.013 11-Jan-16 19-Jan-16 345 0.031 +/- 0.005 < 0.007 19-Jan-16 25-Jan-16 259 0.027 +/- 0.005 < 0.013 25-Jan-16 01-Feb-16 299 0.023 +/- 0.005 < 0.010 25-Jan-16 01-Feb-16 299 0.023 +/- 0.005 Duplicate 0.1-Feb-16 08-Feb-16 305 0.020 +/- 0.004 < 0.009 OB-Feb-16 16-Feb-16 341 '0.017 +/- 0.004 < 0.011 16-Feb-16 23-Feb-16 300 0.017 +/- 0.004 < 0.009 23-Feb-16 29-Feb-16 256 0.021 +/- 0.005 < 0.011 29-Feb-16 07-Mar-16 297 0.020 +/- 0.005 < 0.007 07-Mar-16 14-Mar-16 301 0.021 +/- 0.005 < 0.011 14-Mar-16 21-Mar-16 306 0.018 +/- 0.004 < 0.010 21-Mar-16 30-Mar".'16 376 0.023 +/- 0.004 < 0.010 30-Mar-16 04-Apr-16 218 0.021 +/- 0.005 < 0.021 04-Apr-16 11-Apr-16 296 0.019 +/- 0.004 < 0.011 H-Apr-16 18-Apr-16 296 0.020 +/- 0.004 < 0.010 18-Apr-16 25-Apr-16 295 0.019 +/- 0.004 < 0.014 25-Apr-16 03-May-16 352 < 0.014 25-Apr-16 03-May-16 352 0.009 +/- 0.003 25-Apr-16 03-May-16 352 0.007 +/- 0.003 Reanalysis 03-May-16 10-May-16 281 0.020 +/- 0.005 < 0.011 03-May-16 10-May-16 281 0.018 +/- 0.005 Duplicate 10-May-16 17-May-16 310 0.013 +/- 0.004 < 0.009 17-May-16 25-May-16 325 0.023 +/- 0.004 < 0.015 25-May-16 01-Jun-16 296 0.016 +/- 0.004 < 0.015 01-Jun-16 06-Jun-16 206 0.018 +/- 0.006 < 0.018 06-Jun-16 14-Jun-16 345 0.023 +/- 0.004 < 0.008 14-Jun-16 20-Jun-16 254 0.029 +/- 0.005 < 0.020 20-Jun-16 29-Jun-16 383 0.025 +/- 0.004 < 0.020 29-Jun-16 05-Jul-16 250 0.020 +/- 0.005 < 0.020 05-Jul-16 12-Jul-16 298 0.014 +/- 0.004 < 0.010 05-Jul-16 12-Jul-16 298 0.018 +/- 0.004 Duplicate 12-Jul-16 18-Jul-16 256 0.022 +/- 0.005 < 0.011 12-Jul-16 18-Jul-16 256 0.024 +/- 0.005 Duplicate 18-Jul-16 25-Jul-16 299 0.020 +/- 0.004 < 0.010 25-Jul-16 01-Aug-16 291 0.032 +/- 0.005 < 0.008 01-Aug-16 09-Aug-16 335 0.025 +/- 0.004 < 0.010 09-Aug-16 16-Aug-16 300 0.029 +/- 0.005 < 0.011 16-Aug-16 22-Aug-16 255 0.018 +/- 0.005 < 0.014 22-Aug-16 31-Aug-16 370 0.022 +/- 0.004 < 0.020 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-1

Air Particulate Filters and Radioiodine Canisters Location: 002 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 31-Aug-16 06-Sep-16 259 0.028 +/- 0.005 < 0.021 06-Sep-16 12-Sep-16 256 0.015 +/- 0.005 < 0.010 12-Sep-16 20-Sep-16 334 0.018 +/- 0.004 < 0.012 20-Sep-16 27-Sep-16 301 0.033 +/- 0.005 < 0.021 27-Sep-16 03-0ct-16 254 0.023 +/- 0.005 < 0.009 03-0ct-16 10-0ct-16 300 0.026 +/- 0.005 < 0.016 10-0ct-16 17-0ct-16* 296 0.026 +/- 0.005 < 0.010 17-0ct-16 24-0ct-16 306 0.024 +/- 0.004 < 0.011 24-0ct-16 31-0ct-16 293 0.048 +/- 0.005 < 0.013 31-0ct-16 08-Nov-16 351 0.040 +/- 0.004 < 0.009 08-Nov-16 14-Nov-16 248 0.023 +/- 0.005 < 0.013 14-Nov-16 22-Nov-16 343 0.046 +/- 0.005 < 0.022 22-Nov-16 30-Nov-16 350 0.056 +/- 0.005 < 0.012 30-Nov-16 05-Dec-16 .214 0.031 +/- 0.006 < 0.024 05-Dec-16 12-Dec-16 308 0.026 +/- 0.005 < 0.008 12-Dec-16 19-Dec-16 303 0.038 +/- 0.005 < 0.010 19-Dec-16 27-Dec-16 335 0.036 +/- 0.004 < 0.017 27-Dec-16 04-Jan-17 339 0.028 +/- 0.004 < 0.019 27-Dec-16 04-Jan-17 339 0.028 +/- 0.004 Duplicate 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-2

Air Particulate Filters and Radioiodine Canisters Location: 018 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration (Analysis (pCi/m3) (pCi/m3) 29-Dec-15 04-Jan-16 261 0.042 +/- 0.006 < 0.012 04-Jan-16 11-Jan-.16 299 0.028 +/- 0.005 < 0.013 11-Jan-16 19-Jan-16 344 0.033 +/- 0.005 < 0.007 11-Jan-16 19-Jan-16 344 0.035 +/- 0.005 Duplicate 19-Jan-16 25-Jan-16 257 0.029 +/- 0.005 < 0.013 25-Jan-16 01-Feb-16 297 0.022 +/- 0.005 < 0.010 01-Feb-16 08-Feb-16 308 0.018 +/- 0.004 < 0.009 08-Feb-16 16-Feb-16 341 0.017 +/- 0.004 < 0.011 16-Feb-16 23-Feb-16 279 0.016 +/- 0.004' < 0.010 23-Feb-16 29-Feb-16 256 0.021 +/- 0.005 < 0.011 29-Feb-16 07-Mar-16 297 0.021 +/- 0.005 < 0.007 07-Mar-16 14-Mar-16 300 0.018 +/- 0.004 < 0.011 14-Mar-16 21-Mar-16 305 0.014 +/- 0.004 < 0.010 14-Mar-16 21-Mar-16 305 0.020 +/- 0.004 Duplicate 21-Mar-16 30-Mar-16 378 0.023 +/- 0.004 < 0.010 30-Mar-16 04-Apr-16 221 0.022 +/- 0.005 < 0.021 04-Apr-16 11-Apr-16 297 0.020 +/- 0.004 < 0.011 04-Apr-16 11-Apr-16 297 0.019 +/- 0.004 Duplicate 11-Apr-16 18-Apr-16 300 0.021 +/- 0.004 < 0.010 18-Apr-16 25-Apr-16 296 0.024 +/-' 0.004 < 0.014 25-Apr-16 03-May-16 351 < 0.014 25-Apr-16 03-May-16 351 0.007 +/- 0.003 Reanalysis 25-Apr-16 03-May-16 351 0.010 +/- 0.003 03-May-16 10-May-16 316 0.016 +/- 0.004 < 0.010 10-May-16 17-May-16 343 0.014 +/- 0.004 < 0.008 10-May-16 17-May-16 343 0.015 +/- 0.004 Duplicate 17-May-16 25-May-16 339 0.022 +/- 0.004 < 0.014 17-May-16 25-May-16 339 0.022 +/- 0.004 Duplicate 25-May-16 01-Jun-16 294 0.017 +/- 0.004 < 0.015 01-Jun-16 06-Jun-16 211 0.015 +/- 0.005 < 0.017 06-Jun-16 14-Jun-16 335 0.026 +/- 0.004 < 0.008 06-Jun-16 14-Jun-16 335 0.023 +/- 0.004 Duplicate 14-Jun-16 20-Jun-16 252 0.026 +/- 0.005 < 0.020 20-Jun-16 29-Jun-16 381 0.024 +/- 0.004 < 0.020 29-Jun-16 05-Jul-16 254 0.025 +/- 0.005 < 0.020 05-Jul-16 12-Jul-16 I

300 0.029 +/- 0.005 < 0.010 12-Jul-16 18-Jul-16 251 0.026 +/- 0.005 < 0.012 18-Jul-16 25-Jul-16 299 0.018 +/- 0.004 < 0.010 25-Jul-16 01-Aug-16 297 0.030 +/- 0.005 < 0.008 01-Aug-16 09-Aug-16 340 0.021 +/- 0.004 < 0.010 09-Aug-16 16-Aug-16 302 0.026 +/- 0.005 < 0.011 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-3

Air Particulate Filters and Radioiodine Canisters Location: 018 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 16-Aug-16 22-Aug-16 257 0.018 +/- 0.005 < 0.014 22-Aug-16 31-Aug-16 376 0.024 +/- 0.004 < 0.020 31-Aug-16 06-Sep-16 262 0.026 +/- 0.005 < 0.021 06-Sep-16 12-Sep-16 257 0.013 +/- 0.004 < 0.010 12-Sep-16 20-Sep-16 335 0.020 +/- 0.004 < 0.012 20-Sep-16 27-Sep-16 304 0.028 +/- 0.004 < 0.020 27-Sep-16 03-0ct-16 256 0.024 +/- 0.005 < 0.009 03-0ct-16 10-0ct-16 302 0.026 +/- 0.004 < 0.016 10-0ct-16 17-0ct-16 299 0.021 +/- 0.004 < 0.010 17-0ct-16 24-0ct-16 311 0.025 +/- 0.004 < 0.011 24-0ct-16 31-0ct-16 297 0.051 +/- 0.005 < 0.012 24-0ct-16 31-0Ct-16 297 0.046 +/- 0.005 Duplicate 31-0ct-16 08-Nov-16 351 0.036 +/- 0.004 < 0.009 08-Nov-16 14-Nov-16 253 0.023 +/- 0.005 < 0.012 14-Nov-16 22-Nov-16 345 0.049 +/- 0.005 < 0.022 22-Nov-16 30-Nov-16 347 0.050 +/- 0.005 < 0.012 30-Nov-16 05-Dec-16 208 0.030 +/- 0.006 < 0.024 05-Dec-16 12-Dec-16 307 . 0.030 +/- 0.005 < 0.008 12-Dec-16 19-Dec-16 300 0.040 +/- 0.005 < 0.010 19-Dec-16 27-Dec-16 330 0.036 +/-. 0.005 < 0.017 27-Dec-16 04-Jan-17 341 0.029 +/- 0.004 < 0.019 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-4

Air Particulate Filters and Radioiodine Canisters Location: 032 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 29-Dec'-15 04-Jan-16 261 0.044 +/- 0.006 < 0.012 04-Jan-16 11-Jan-16 299 0.027 +/- 0.005 < 0.013 11-Jan-16 19-Jan-16 337 0.030 +/- 0.005 < 0.008 19-Jan-16 25-Jan-16 254 0.035 +/- 0.006 < 0.013 25-Jan-16 01-Feb-16 302 0.027 +/- 0.005 < 0.010 01-Feb-16 08-Feb-16 305 0.020 +/- 0.004 < 0.009 08-Feb-16 16-Feb-16 343 0.018 +/- 0.004 < 0.011 16-Feb-16 23-Feb-16 300 0.014 +/- 0.004 < 0.009 23-Feb-16 29-Feb-16 257 0.022 +/- 0.005 < 0.011 29-Feb-16 07-Mar-16 299 0.018 +/- 0.004 < 0.007 29-Feb-16 07-Mar-16 299 0.021 +/- 0.005 Duplicate 07-Mar-16 14-Mar-16 302 0.023 +/- 0.005 < 0.011 14-Mar-16 21-Mar-16 306 0.015 +/- 0.004 < 0.010 21-Mar-16

30-Mar-16 376 / 0.022 +/- 0.004 < 0.010 30-Mar-16 04-Apr-16 220 0.020 +/- 0.005 < 0.021 04-Apr-16 11-Apr-16 298 0.021 +/- 0.004 < 0.011 11-Apr-16 18-Apr-16 302 0.020 +/- 0.004 < 0.010 18-Apr-16 25-Apr-16 295 0.024 +/- 0.004 < 0.014 25-Apr-16 03-May-16 355 < 0.014 25-Apr-16 03-May-16 355 0.009 +/-. 0.003 Reanalysis 25-Apr-16 03-May-16 355 0.010 +/- 0.003 03-May-16 10-May-16 292 0.020 +/- 0.005 < 0.010 10-May-16 17-May-16 3.12 0.017 +/- 0.004 < 0.009 17-May-16 25-May-16 336 0.017 +/- 0.004 < 0.014 25-May-16 01-Jun-16 301 0.022 +/- 0.004 < 0.014 01-Jun-16 06-Jun-16 213 0.021 +/- 0.006 < 0.017 06-Jun-16 14-Jun-16 345 0.024 +/- 0.004 < 0.008 14-Jun-16 20-Jun-16 259 0.031 +/- 0.005 < 0.019 20-Jun-16 29-Jun-16 388 0.025 +/- 0.004 < 0.020 29-Jun-16 05-Jul-16 254 0.021 +/- 0.005 < 0.020 05-Jul-16 . 12-Jul-16 305 0.019 +/- 0.004 < 0.010 12-Jul-16 18-Jul-16 259 0.026 +/- 0.005 < 0.011 18-Jul-16 25-Jul-16 298 0.021 +/- 0.004 < 0.010 25-Jul-16 01-Aug-16 298 0.027 +/- 0.005 < 0.008 25-Jul-16 01-Aug-16 298 0.025 +/- 0.005 Duplicate 01-Aug-16 09-Aug-16 335 0.025 +/- 0.004 < 0.010 09-Aug-16 16-Aug-16 302 0.026 +/- 0.004 < 0.011 16-Aug-16 22-Aug-16 256 0.016 +/- 0.005 < 0.014 22-Aug-16 31-Aug-16 385 0.021 +/- 0.003 < 0.019 31-Aug-16 06-Sep-16 261 0.023 +/- 0.005 < 0.021 31-Aug-16 06-Sep-16 261 0.023 +/- 0.005 Duplicate 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 5

Air Particulate Filters and Radioiodine Canisters Location: 032 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 06-Sep-16 12-Sep-16 261 0.017 +/- 0.005 < 0.010 12-Sep-16 20-Sep-16 342 0.019 +/- 0.004 < 0.012 20-Sep-16 27-Sep-16 302 0.028 +/- 0.005 < 0.021 27-Sep-16 03-0ct-16 257 0.025 +/- 0.005 < 0.009 03-0ct-16 10-0ct-16 300 0.026 +/- 0.005 < 0.016 1O-Oct-16 17-0ct-16 298 0.022 +/- 0.004 < 0.010 17-0ct-16 24-0ct-16 312 0.025 +/- 0.004 < 0.011 24-0ct-16 31-0ct-16 296 0.049 +/- 0.005 < 0.012 31-0ct-16 08-Nov-16 350 0.033 +/- 0.004 < 0.009 08-Nov-16 14-Nov-16 249 0.027 +/- 0.005 < 0.012 14-Nov-16 22-Nov-16 347 0.048 +/- 0.005 < 0.022 .

22-Nov-16 30-Nov-16 344 0.049 +/- 0.005 < 0.012 30-Nov-16 05-Dec-16 217 0.033 +/- 0.006 < 0.023 05-Dec-16 12-Dec-16 308 0.024 +/- 0.004 < 0.008 12-Dec-16 19-Dec-16 306 0.041 +/- 0.005 < 0.010 19-Dec-16 27-Dec-16 332 0.038 +/- 0.005 < 0.017 19-Dec-16 27-Dec-16 332 0.035 +/- 0.004 Duplicate

27-Dec-16 04-Jan-17 338 0.027 +/- 0.004 < 0.019 2016 Annual Radiological Environmental Operating Report Wolf Crc:ek Generating Station Page C-6

Air Particulate Filters and Radioiodine Canisters Location: 037 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 29-Dec-15 04-Jan-16 270 0.047 +/-. 0.006 < 0.012 04-Jan-16 11-Jan-16 296 0.031 +/- 0.005 < 0.013 11-Jan-16 19-Jan-16 349 0.033 +/- 0.005 < 0.007 19-Jan-16 25-Jan-16 263 0.033 +/- 0.006 < 0.013 25-Jan-16 01-Feb-16 301 0.025 +/- 0.005 < 0.010 01-Feb-16 08-Feb-16 307 0.020 +/- 0.004 < 0.009 01-Feb-16 08-Feb-16 307 0.019 +/- 0.004 Duplicate 08-Feb-16 16-Feb-16 345 0.018 +/- 0.004 < 0.011 08-Feb-16 16-Feb-16 345 0.019 +/- 0.004 Duplicate 16-Feb-16 23-Feb-16 303 0.019 +/- 0.004 < 0.009 23-Feb-16 29-Feb-16 259 0.021 +/- 0.005 < 0.011 29-Feb-16 07-Mar-16 302 0.020 +/- 0.005 < 0.007 07-Mar-16 14-Mar-16 304 0.022 +/- 0.005 < 0.011 14-Mar-16 21-Mar-16 312 0.018 +/- 0.004 < 0.010 21-Mar-16 30-Mar-16 381 0.023 +/- 0.004 < 0.010 21-Mar-16 30-Mar-16 381 0.025 +/- 0.004 Duplicate 30-Mar-16 04-:Apr-16 222 0.016 +/- 0.005 < 0.020 04-Apr-16 11-Apr-16 298 0.019 +/- 0.004 < 0.011 11-Apr-16 18-Apr-16

303 0.021 +/- 0.004 < 0.010 18-Apr-16 25-Apr-16 300 0.023 +/- 0.004 < 0:014 25-Apr-16 03-May-16 351 < 0.014 25-Apr-16 03-May-16 351 0.013 +/- 0.004 25-Apr-16 03-May-16 351 0.009 +/- 0.003 Reanalysis 03-May-16 10-May-16 289 0.018 +/- 0.004 < 0.010 10-May-16 17-May..:16 314 0.013 +/- 0.004 < 0.009 17-May-16 25-May-16 339 0.021 +/- 0.004 < 0.014 25-May-16 01-Jun-16 303 0.021 +/- 0.004 < 0.014 01-Jun-16 06-Jun-16 212 0.018 +/- 0.006 < 0.017 06-Jun-16 14-Jun-16 -346 0.026 +/- 0.004 < 0.008 14-Jun-16 20-Jun-16 261 0.027 +/- 0.005 < 0.019 20-Jun-16 29-Jun-16 387 0.024 +/- 0.004 < 0.020 20-Jun-16 29-Jun-16 387 0.025 +/- 0.004 Duplicate 29-Jun-16 05-Jul-16 252 0.025 +/- 0.005 < 0.020 29-Jun-16 05-Jul-16 252 0.026 +/- 0.005 Duplicate 05-Jul-16 12-Jul-16 302 0.023 +/- 0.005 < 0.010 12-Jul-16 18-Jul-16 257 0.021 +/- 0.005 < 0.011 18-Jul-16 25-Jul-16 298 0.019 +/- 0.004 < 0.010 25-Jul-16 01-Aug-16 295 0.031 +/- 0.005 < 0.008 01-Aug-16 09-Aug-16 339 0.023 +/- 0.004 < 0.010 09-Aug-16 16-Aug-16 301 0.029 +/- 0.005 < 0.011 16-Aug-16 22-Aug-16 257 0.021 +/- 0.005 < 0.014

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-7

Air Particulate Filters and Radioiodine Canisters Location: 037 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 16-Aug-16 22-Aug-16 257 0.015 +/- 0.005 Duplicate 22-Aug-16 31-Aug-16 382 0.020 +/- 0.003 < 0.019 31-Aug-16 06-Sep-16 265 0.024 +/- 0.005 < 0.021 06-Sep-16 12-Sep-16 238 0.014 +/- 0.005 < 0.011 12-Sep-16 20-Sep-16 342 0.021 +/- 0.004 < 0.012 12-Sep-16 20-Sep-16 342 0.017 +/- 0.004 Duplicate 20-Sep-16 27-Sep-16 304 0.031 +/- 0.005 < 0.020 20-Sep-16' 27-Sep-16 304 0.032 +/- 0.005 Duplicate 27-Sep-16 03-0ct-16 256 0.022 +/- 0.005 < 0.009 03-0ct-16 1O-Oct-16 302 0.027 +/- 0.005 < 0.016 10-0ct-16 17-0ct-16 299 0.025 +/- 0.004 < 0.010 17-0ct-16 24-0ct-16 310 0.025 +/- 0.004 < 0.011 24-0ct-16 31-0ct-16 287 0.043 +/- 0.005 < 0.013 31-0ct-16 08-Nov-16 350 0.042 +/- 0.005 < 0.009 08-Nov-16 14-Nov-16 254 0.025 +/- 0.005 < 0.012 14-Nov-16 22-Nov-16 344 0.049 +/- 0.005 < 0.022 14-Nov-16 22-Nov-16 344 0.045 +/- 0.005 Duplicate 22-Nov-16 30-Nov-16 343 0.052 +/- 0.005 < 0.012 30-Nov-16 05-Dec-16 211 0.029 +/- 0.006 < 0.024 05-Dec-16 12-Dec-16 311 0.027 +/- 0.005 < 0.008 12-Dec-16 19-Dec-16 301 0.047 +/- 0.005 < 0.010 19-Dec-16 27-Dec-16 339 0.040 +/- 0.005 < 0.016 27-Dec-16 04-Jan-17 340 0.026 +/- 0.004 < 0.019 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-8

Air Particulate Filters and Radioiodine Canisters Location: 049 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date ml Concentration Concentration Analysis (pCi/m3) (pCi/m3) 29-Dec-15 04-Jan-16 261 0.050 +/- 0.006 < 0.012 ,,

04-Jan-16 11-Jan-16 299 0.029 +/- 0.005 < 0.013 11-Jan-16 19-Jan-16 346 0.031 +/- 0.005 < 0.007 19-Jan-16 25-Jan-16 259 0.034 +/- 0;006 < 0.013 25-Jan-16 01-Feb-16 306 0.024 +/- 0.005 < 0.010 01-Feb-16 08-Feb-16 308 0.023 +/- 0.005 < 0.009 08-Feb-16 16-Feb-16 348 0.018 +/- 0.004 < 0.011 16-Feb-16 23-Feb-16 300 0.017 +/- 0.004 < 0.009 23-Feb-16 29-Feb-16 260 0.020 +/- 0.005 < 0.011 23~Feb-16 29-Feb-16 260 0.024 +/- 0.005 Duplicate 29-Feb-16 07-Mar-16 298 0.021 +/- 0.005 < 0.007 07-Mar-16 14-Mar-16 304 0.018 +/- 0.004 < 0.011 14-Mar-16 21-Mar-16 310 0.019 +/- 0.004 < 0.010 21-Mar-16 30-Mar-16 380 0.023 +/- 0.004 < 0.010 30-Mar-16 04-Apr-16 218 0.021 +/- 0.005 < 0.021 04-Apr-16 11-Apr-16 300 0.020 +/- 0.004 < 0.011 11-Apr-16 18-Apr-16 303 0.017 +/- 0.004 < 0.010 11-Apr-16 18-Apr-16 303 0.024 +/- 0.004 Duplicate 18-Apr-16 25-Apr-16 302 0.021 +/- 0.004 < 0.014 25-Apr-16 03-May-16 355 < 0.014 25-Apr-16 03-May-16 355 0.011 +/- 0.003 25-Apr-16 03-May-16 355 0.009 +/- 0.003 Reanalysis 03-May-16 10-May-16 283 0.017 +/- 0.005 < 0.011 10-May-16 17-May-16 314 0.014 +/- 0.004 < 0.009 17-May-16 25-May-16 340 0.020 +/- 0.004 < 0.014 25-May-16 01-Jun-16 303 0.015 +/- 0.004 < 0.014 01-Jun-16 06-Jun-16 214 0.017 +/- 0.006 < 0.017 06-Jun-16 14-Jun-16 347 0.025 +/- 0.004 < 0.008 14-Jun-16 20-Jun-16 258 0.027 +/- 0.005 < 0.019 20-Jun-16 29-Jun-16 387 0.024 +/- 0.004 < 0.020 29-Jun-16 05-Jul-16 235 0.020 +/- 0.005 < 0.021 05-Jul-16 12-Jul-16 303 0.021 +/- 0.004 < 0.010 12-Jul-16 18-Jul-16 257 0.024 +/- 0.005 < 0.011 18-Jul-16 25-Jul-16 301 0.023 +/- 0.004 < 0.010 18-Jul-16 25-Jul-16 301 0.020 +/- 0.004 Duplicate 25-Jul-16 01-Aug-16 296 0.023 +/- 0.004 < 0.008 01-Aug-16 . 09-Aug-16 340 0.024 +/- 0.004 < 0.010 09-Aug-16 16-Aug-16 303 0.027 +/- 0.005 < 0.011 16-Aug-16 22-Aug-16 257 0.019 +/- 0.005 < 0.014 22-Aug-16 31-Aug-16 388 0.024 +/- 0.004 < 0.019 31-Aug-16 06-Sep-16 262' 0.023 +/- 0.005 < 0.021 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-9

Air Particulate Filters and Radioiodine Canisters Location: 049 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date rn3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 06-Sep-16 12-Sep-16 258 0.015 +/- 0.005 < 0.010 12-Sep-16 20-Sep-16 342 0.020 +/- 0.004 < 0.012 20-Sep-16 27-Sep-16 305 0.029 +/- 0.005 < 0.020 27-Sep-16 03-0ct-16 257 0.022 +/- 0.005 < 0.009 03-0ct-16 10-0ct-16 304 0.025 +/- 0.004 < 0.016 10-0ct-16 17-0ct-16 296 0.023 +/- 0.004 < 0.010 17-0ct-16 24-0ct-16 312 0.026 +/- 0.004 < 0.011 24-0ct-16 31-0ct-16 295 0.051 +/- 0.005 < 0.012 31-0ct-16 08-Nov-16 351 0.038 +/- 0.004 < 0.009 08-Nov-16 14-Nov-16 253 0.023 +/- 0.005 < 0.012 14-Nov-16 22-Nov-16 341 0.043 +/- 0.005 < 0.022 22-Nov-16 30-Nov-16 348 0.047 +/- 0.005 < 0.012 30-Nov-16 05-Dec-16 216 0.030 +/- 0.006 < 0.023 05-Dec-16 12-Dec-16 307 0.026 +/- 0.005 < 0.008 12-Dec-16 19-Dec-16 306 0.044 +/- 0.005 < 0.010 19-Dec-16 27-Dec-16 335 0.035 +/- 0.004 < 0.017 27-Dec-16 04-Jan-17 344 0.027 +/- 0.004 < 0.019 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-10

Air Particulate Filters and Radioiodine Canisters Location:053 Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 29-Dec-15 04-Jan-16 258 0.044 +/- 0.006 < 0.012 29-Dec-15 04-Jan-16 258 0.051 +/- 0.006 Duplicate 04-Jan-16 11-Jan-16 298 0.024 +/- 0.005 < 0.013 04-Jan-16 11-Jan-16 298 0.027 +/- 0.005 Duplicate 11-Jan-16 19-Jan-16 346 0.031 +/- 0.005 < 0.007 19-Jan-16 25-Jan-16 258 0.033 +/- 0.006 I < 0.013 25-Jan-16 01-Feb-16 301 0.026 +/- 0.005 < 0.010 01-Feb-16 08-Feb 305 0.022 +/- 0.005 < 0.009 08-Feb-16 16-Feb-16 346 0.021 +/- 0.004 < 0.011 16-Feb-16 23-Feb-16 299 0.019 +/- 0.004 < 0.009 23-Feb-16 29-Feb-16 260 0.025 +/- 0.005 < 0.011 29-Feb-1.6 07-Mar-16 302 0.018 +/- 0.004 < 0.007 07-Mar-16 14-Mar-16 . 300 0.021 +/- 0.005 < 0.011 14-Mar-16 21-Mar-16 309 0.017 +/- 0.004 < 0.010 21-Mar-16 30-Mar-16 375 0.021 +/- 0.003 < 0.010 30-Mar-16 04-Apr.:16 220 0.018 +/- 0.005 < 0.021 04-Apr-16 11-Apr-16 298 0.019 +/- 0.004 < 0.011 11-Apr-16 18-Apr-16 302 0.023 +/- 0.004 < 0.010 18-Apr-16 25-Apr-16 298 0.020 +/- 0.004 < 0.014 18-Apr-16 25-Apr-16 298 0.023 +/- 0.004 Duplicate 25-Apr-16 03-May-16 317 < 0.016 25-Apr-16 03-May-16 317 0.013 +/- 0.004 Reanalysis 25-Apr-16 03-May-16 317 0.010 +/- 0.004 03-May-16 10-May-16 287 0.019 +/- 0.005 < 0.011 10-May-16 17-May-16 307 0.011 +/- 0.004 < 0.009 17-May-16 25-May-16 335 0.023 +/- 0.004 < 0.015 25-May-16 01-Jun-16 302 0.021 +/- 0.004 < 0.014 01-Jun-16 06-Jun-16 211 0.014 +/- 0.005 < 0.017 06-Jun-16 14-Jun-16 342 0.021 +/- 0.004 < 0.008 14-Jun-16 20-Jun-16 255 0.025 +/- 0.005 < 0.019 20-Jun,.16 29-Jun-16 382 0.025 +/- 0.004 < 0.020 29-Jun-16 05-Jul-16 253 0.026 +/- 0.005 < 0.020 05-Jul-16 12-Jul-16 300 0.019 +/- 0.004 < 0.010 12-Jul-16 18-Jul-16 257 0.023 +/- 0.005 < 0.011 18-Jul-16 25-Jul-16 300 0.017 +/- 0.004 < 0.010 25-Jul-16 01-Aug-16 297 0.026 +/- 0.005 < 0.008 01-Aug-16 09-Aug-16 338 0.022 +/- 0.004 < 0.010 09-Aug-16 16-Aug-16 300 0.029 +/- 0.005 < 0.011 09-Aug-16 16-Aug-16 300 0.025 +/- 0.004 Duplicate 16-Aug-16 22-Aug-16 256 0.019 +/- 0.005 < 0.014 22-Aug-16 31-Aug-16 384 0.020 +/- 0.003 < 0.019 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-11

Air Particulate Filters and Radioiodine Canisters Location: 053, Collection Collection Volume Gross Beta 1-131 Duplicate StartDate End Date m3 Concentration Concentration Analysis (pCi/m3) (pCi/m3) 31-Aug-16 06-Sep-16 260 0.027 +/- 0.005 < 0.021 06-Sep-16 12-Sep-16 261 0.010 +/- 0.004 < 0.010 12-Sep-16 20-Sep-16 341 0.019 +/- 0.004 < 0.012 20-Sep-16 27-Sep-16 299 0.031 +/- 0.005 < 0.021 27-Sep-16 03-0ct-16 256 0.025 +/- 0.005 < 0.009 03-0ct-16 10-0ct-16 302 0.023 +/- 0.004 < 0.016 10-0ct-16 17-0ct-16 300 0.022 +/- 0.004 < 0.010 17-0ct-16 24-0ct-16 307 0.023 +/- 0.004 < 0.011 24-0ct-16 31-0ct-16 296 0.047 +/- 0.005 < 0.012 31-0ct-16 08-Nov-16 350 0.036 +/- 0.004 < 0.009 08-Nov-16 14-Nov-16 252 0.024 +/- 0.005 < 0.012 08-Nov-16 14-Nov-16 252 Q.021 +/- 0.005 Duplicate 14-Nov-16 22-Nov-16 344 0.044 +/- 0.005 < 0.022 22-Nov-16 30-Nov-16 356 0.050' +/- 0.005 < 0.012 30-Nov-16 05-Dec-16 209 0.034 +/- 0.006 < 0.024 05-Dec-16 12-Dec-16 308 0.026 +/- 0.005 < 0.008 05-Dec-16 12-Dec-16 308 0.028 +/- 0.005 Duplicate 12-Dec-16 19-Dec-16 309 0.048 +/- 0.005 < 0.010 19-Dec-16 27-Dec-16 325 0.036 +/- 0.005 < 0.017 27-Dec-16 04-Jan-17 342 0.027 +/- 0.004 < 0.019 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-12

Quarterly Air Particulates - Gamma Location: 002 30-Mar-16 Nuclide Concentration (gCi/m3) .

BE-7 . 0.068 +/- 0.015 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-Jun-16 Nuclide Concentration (gCi/m3)

BE-7 0.084 +/- 0.011 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 03-0ct-16 Nuclide Concentration (gCi/m3)

BE-7 0.082 +/- 0.013 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.002 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 27-Dec-16 Nuclide Concentration (gCi/m3)

BE-7 0.071 +/- 0.015 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

Duplicate Analysis 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-13

Quarterly Air Particulates - Gamma Location: 018

.JO-Mar-16 Nuclide Concentration {a;!Cifm3}

BE-7 0.065 +/- 0.014 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-Jun-16 Nuclide Concentration {12Cifm3}

BE-7 0.095 +/- 0.011 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 03-0ct-16 Nuclide Concentration {a;!Cifm3}

BE-7 0.077 +/- 0.012 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 27-Dec-16 Nuclide Concentration {12Cifm3}

BE-7 0.072 +/- 0.014

BE-7 0.081 +/- 0.016 MN-54 < 0.001

MN-54 < 0.001 C0-58 < 0.001

C0-58 < 0.001 FE-59 < 0.001

FE-59 < 0.002 C0-60 < 0.001

C0-60 < 0.001

Duplicate Analysis 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-14

Quarterly Air Particulates - Gamma Location: 018 ZN-65 < 0.001

ZN-65 < 0.001 ZR-NB-95 < 0.001

ZR-NB-95 < 0.001 CS-134 < 0.001

CS-134 < 0.001 CS-137 < 0.001

CS-137 < 0.001

Duplicate Analysis 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-15

Quarterly Air Particulates - Gamma Location: 032 30-Mar-16 Nuclide Concentration (gCi/m3)

BE-7 0.078 +/- 0.014 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-Jun-16 Nuclide Concentration (gCi/m3)

BE-7 0.104 +/- 0.015 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 '< 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 03-0ct-16 Nuclide Concentration (gCi/m3)

BE-7 0.082 +/- 0.014 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.002 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 27-Dec-16 Nuclide Concentration (gCi/m3)

BE-7 0.073 +/- 0.014 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

Duplicate Analysis 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-16

Quarterly Air Particulates - Gamma Location: 037 30-Mar-16 Nuclide Concentration {gCi/m3}

BE-7 0.066 +/- 0.014 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.002 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-Jun-16 Nuclide Concentration {gCi/m3}

BE-7 0.107 +/- 0.015 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002

C0-60 < 0.001 ZN-65 < 0.002 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 03-0ct-16 Nuclide Concentration {gCi/m3}

BE-7 0.081 +/- 0.015 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 27-Dec-16 Nuclide Concentration {gCi/m3}

BE-7 0.080 +/- 0.018.

MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

Duplicate Analysis 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-17

Quarterly Air Particulates - Gamma Location: 049 30-Mar-16 Nuclide Concentration (aCilm3)

BE-7 0.072 +/- 0.011 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29.Jun-16 Nuclide Concentration (aCilm3}

BE-7 0.104 +/- 0.017 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 03-0ct-16 Nuclide Concentration (aCi/m3}

BE-7 0.086 +/- 0.013 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 27-Dec-16 Nuclide Concentration (aCi/m3}

BE-7 0.072 +/- 0.017 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.002 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

Duplicate Analysis 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station

Page C -18

Quarterly Air Particulates - Gamma Location: 053 30-Mar-16 Nuclide Concentration (gCi/m3)

BE-7 0.073 +/- 0.012 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 ,< 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-Jun-16 Nuclide Concentration {gCi/m3)

BE-7 0.100 +/- 0.016 MN-54 < 0.001 C0-58 < - 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 03-0ct-16 Nuclide Concentration {gCi/m3)

BE-7 0.077 +/- 0.012 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.001 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 27-Dec-16 Nuclide Concentration {gCi/m3)

BE-7 0.082 +/- 0.014 MN-54 < 0.001 C0-58 < 0.001 FE-59 < 0.002 C0-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

Duplicate Analysis 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-19

Exposure Pathway - Waterborne Surface Water

Location: JRR

Sample Nuclide Concentration Duplicate Collection Description (pCi/Liter) Analysis Date 14-Jan-16 SURFACE WATER MN-54 < 3.5 14-Jan-16 SURFACE WATER C0-58 < 2.9 14-Jan-16 SURFACE WATER FE-59 < 4.4 14-Jan-16 SURFACE WATER C0-60 < 2.2 14-Jan-16 SURFACE WATER ZN-65 < 4.1 14-Jan-16 SURFACE WATER ZR-NB-95 < 3.1 14-Jan-16 SURFACE WATER 1-131 < 7.6 14-Jan-16 SURFACE WATER CS-134 < 3.2 14-Jan-16 SURFACE WATER CS-137 < 3.2 14-Jan-16 SURFACE WATER BA-LA-140 < 2.3 14-Jan-16 SURFACE WATER H-3 < 141.0 22-Feb-16 SURFACE WATER MN-54 < 2.6 22-Feb-16 SURFACE WATER C0-58 < 1.7 22-Feb-16 SURFACE WATER FE-59 < 5.7 22-Feb-16 SURFACE WATER C0-60 < 2.2 22-Feb-16 SURFACE WATER ZN-65 < 6.1 22-Feb-16 SURFACE WATER ZR-NB-95 < 3.1 22-Feb-16 SURFACE WATER 1-131 < 4.9 22-Feb-16 SURFACE WATER CS-134 < 2.7 22-Feb-16 SURFACE WATER CS-137 < 2.0 22-Feb-16 SURFACE WATER BA-LA-140 < 1.4 22-Feb-16 SURFACE WATER H-3 < 145.0 22-Feb-16 SURFACE WATER FE-55 < 73.0 30-Mar-16 SURFACE WATER MN-54 < 2.9 30-Mar-16 SURFACE WATER C0-58 < 2.9 30-Mar-16 SURFACE WATER FE-59 < 4.9 30-Mar-16 SURFACE WATER C0-60 < 1.3 30-Mar-16 SURFACE WATER ZN-65 < 5.5 30-Mar-16 SURFACE WATER ZR-NB-95 < 3.6 30-Mar-16 SURFACE WATER 1-131 < 4.3 30-Mar-16 SURFACE WATER CS-134 < 3.4 30-Mar-16 SURFACE WATER CS-137 < 3.9 30-Mar-16 SURFACE WATER BA-LA-140 < 3.6 30,.Mar-16 SURFACE WATER H-3 < 152.0 13-Apr-16 SURFACE WATER MN-54 < 1.8 13-Apr-16 SURFACE WATER C0-58 < 1.6 13-Apr-16 SURFACE WATER FE-59 < 4.8 13-Apr-16 SURFACE WATER C0-60 < 2.5 2016 Annual Radiological Environmental Operating Report Page C-20 Wolf Creek Generating Station

Exposure Pathway-Waterborne Surface Water Location: JRR

\.

Collection Sample Nuclide Concentration

Duplicate Date Description (pCi/Liter) Analysis 13-Apr-16 SURFACE WATER ZN-65 < 3.6 13-Apr-16 SURFACE WATER ZR-NB-95 < 2.3 13-Apr-16 SURFACE WATER 1-131 < 4.5 13-Apr-16 SURFACE WATER CS-134 < 3.4 13-Apr-16 SURFACE WATER CS-137 < 2.4 13-Apr-16 SURFACE WATER BA-LA-140 < 2.1 13-Apr-16 SURFACE WATER H-3 < 148.0 10-May-16 SURFACE WATER MN-54 < 2.3 10-May-16 SURFACE WATER C0-58 < 1.6 10-May-16 SURFACE WATER FE-59 < 3.5 10-May-16 SURFACE WATER C0-60 < 1.3

10-May-16 SURFACE WATER ZN-65 < 5.1 10-May-16 SURFACE WATER ZR-NB-95 < 2.9 10-May-16 SURFACE WATER 1-131 < 3.8 10-May-16 SURFACE WATER CS-134 < 3.0 10-May-16 SURFACE WATER CS-137 < 3.5 10-May-16 SURFACE WATER BA-LA-140 < 1.4 10-May-16 SURFACE WATER H-3 < 150.0 10-May-16 SURFACE WATER FE-55 < 99.0 08-Jun-16 SURFACE WATER MN-54 < 3.4 08-Jun-16 SURFACE WATER C0-58 < 3.0 08-Jun-16 SURFACE WATER FE-59 < 6.8 08-Jun-16 SURFACE WATER C0-60 < 3.2 08-Jun-16 SURFACE WATER, ZN-65 < 7.6 08-Jun-16 SURFACE WATER ' ZR-NB-95 < 3.2 08-Jun-16 SURFACE WATER 1-131 < 9.6 08-Jun-16 SURFACE WATER CS-134 < 4.3 08-Jun-16 SURFACE WATER CS-137 < 3.5 08-Jun-16 SURFACE WATER BA-LA-140 < 4.8 08-Jun-16 SURFACE WATER H-3 < 146.0 19-Jul-16

SURFACE WATER MN-54 < 2.9 19-Jul-16 SURFACE WATER C0-58 < 2.2 19-Jul-16 SURFACE WATER FE-59 < 4.6 19-Jul-16 SURFACE WATER C0-60 < 2.3 19-Jul-16 SURFACE WATER ZN-65 < 4.2 19-Jul-16 SURFACE WATER ZR-NB-95 < 3.8 19-Jul-16 SURFACE WATER 1-131 < 3.4 19-Jul-16 SURFACE WATER CS-134 < 3.4 2016 Annual Radiological Environ'mental Operating Report Page C-21 Wolf Creek Generating Station

Exposure Pathway - Waterborne Surface Water Location: JRR Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 19-Jul-16 SURFACE WATER CS-137 < 3.0 19-Jul-16 SURFACE WATER BA-LA-140 < 2.5 19-Jul-16 SURFACE WATER H-3 < 151.0 17-Aug-16 SURFACE WATER MN-54 < 3.9 17-Aug-16 SURFACE WATER C0-58 < 3.8 17-Aug-16 SURFACE WATER FE-59 < 2.7 17-Aug-16 SURFACE WATER C0-60 < 3.2 17-Aug-16 SURFACE WATER ZN-65 < 5.6 17-Aug-16 SURFACE WATER ZR-NB-95 < 3.7 17-Aug-16 SURFACE WATER 1-131 < 7.7 17-Aug-16 SURFACE WATER CS-134 < 4.6 17-Aug-16 SURFACE WATER CS-137 < 4.6 17-Aug-16 SURFACE WATER BA-LA-140 < 2.3 17-Aug-16 SURFACE WATER H-3 < 149.0 17-Aug-16 SURFACE WATER FE-55 < 81.0 13-Sep-16 SURFACE WATER MN-54 < 2.2 13-Sep-16 SURFACE WATER C0-58 < 2.6 13-Sep-16 SURFACE WATER FE-59 < 5.9 13-Sep-16 SURFACE WATER C0-60 < 1.8 13-Sep-16 SURFACE WATER ZN-65 < 5.4 13-Sep-16 SURFACE WATER ZR-NB-95 < 2.5 13-Sep-16 SURFACE WATER 1-131 < 5.0 13-Sep-16 SURFACE WATER CS-134 < 2.8 13-Sep-16 SURFACE WATER CS-137 < 2.5 13-Sep-16 SURFACE WATER BA-LA-140 < 2.5 13-Sep-16 SURFACE WATER H-3 < 149.0 12-0ct-16 SURFACE WATER MN-54 < 2.9 12-0ct-16 SURFACE WATER C0-58 < 3.7 12-0ct-16 SURFACE WATER FE-59 < 4.5 12-0ct-16 SURFACE WATER C0-60 < 3.0 12-0ct-16 SURFACE WATER ZN-65 < 4.6 12-0ct-16 SURFACE WATER ZR-NB-95 < 3.6 12-0ct-16 SURFACE WATER 1-131 < 7.3 12-0ct-16 SURFACE WATER CS-134 < 4.0 12-0ct-16 SURFACE WATER CS-137 < 4.4 12-0ct-16 SURFACE WATER BA-LA-140 < 4.9 12-0ct-16 SURFACE WATER H-3 < 154.0 30-Nov-16 SURFACE WATER MN-54 < 5.7 2016 Annual Radiological Environmental Operating Report Page C-22 Wolf Creek Generating Station

Exposure Pathway

Waterborne Surface Water Location: JRR Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 30-Nov-16 SURFACE WATER C0-58 < 3.2 30-Nov-16 SURFACE WATER FE-59 < 8.0 30-Nov-16 SURFACE WATER C0-60 < 4.6 30-Nov-16 SURFACE WATER ZN-65 < 6.9 30-Nov-16 SURFACE WATER. ZR-NB-95 < 4.7 30-Nov-16 SURFACE WATER 1-131 < 5.5 30-Nov-16 SURFACE WATER CS-134 < 4.9 30-Nov-16 SURFACE WATER CS-137 < 5.6 30-Nov-16 SURFACE WATER BA-LA-140 < 3.5 30-Nov-16 SURFACE WATER H-3 < 174.0 30-Nov-16 SURFACE WATER FE-55 < 97.0 27-Dec SURFACE WATER MN-54 < 2.9 27-Dec-16 SURFACE WATER C0-58 < 2.5 27-Dec-16 SURFACE WATER FE-59 < 4~.6 I

27-Dec-16 SURFACE WATER C0-60 < 3.1 27-Dec-16 SURFACE WATER ZN-65 < 4.4 27-Dec-16 SURFACE WATER ZR-NB-95 < 2.9 27-Dec-16 SURFACE WATER 1-131 < 6.1 27-Dec-16 SURFACE WATER CS-134 < 3.6 27-Dec-16 SURFACE WATER CS-137 < 2.3 27-Dec-16 SURFACE WATER BA-LA-140 < 3.8 27-Dec-16 SURFACE WATER H-3 < 143.0 2016 Annual Radiological Environmental Operating Report Page C - 23 Wolf Creek Generating Station

Exposure Pathway - Waterborne Surface Water Location: SP Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 14-Jan-16 SURFACE WATER MN-54 < 2.6 14-Jan-16 SURFACE WATER C0-58 < 1.9 14-Jan-16 SURFACE WATER FE-59 < 3.7 14-Jan-16 SURFACE WATER C0-60 < 2.2 14-Jan-16 SURFACE WATER ZN-65 < 4.3 14-Jan-16 SURFACE WATER ZR-NB-95 < 2.5 14-Jan-16 SURFACE WATER 1-131 < 7.5 14-Jan-16 SURFACE WATER CS-134 < 3.2 14-Jan-16 SURFACE WATER CS-137 < 2.0 14-Jan-16 SURFACE WATER BA-LA-140 < 1.5 14-Jan-16 SURFACE WATER H-3 7,971 +/- 264.0 22-Feb-16 SURFACE WATER MN-54 < 2.4 22-Feb-16 SURFACE WATER C0-58 < 2.6 22-Feb-16 SURFACE WATER FE-59 < 5.7 22-Feb-16 SURFACE WATER C0-60 < 2.7 22-Feb-16 SURFACE WATER ZN-65 < 3.0 22-Feb-16 SURFACE WATER ZR-NB-95 < 2.6 22-Feb-16 SURFACE WATER 1-131 < 5.2 22-Feb-16 SURFACE WATER CS-134 < 3.0 22-Feb-16 SURFACE WATER CS-137 < 1.7 22-Feb-16 SURFACE WATER BA-LA-140 < 2.3 22-Feb-16 SURFACE WATER H-3 10, 183 +/- 282.0 22-Feb-16 SURFACE WATER FE-55 < 75.0 30-Mar-16 SURFACE WATER MN-54 < 1.9 30-Mar-16 SURFACE WATER C0-58 < 2.8 30-Mar-16 SURFACE WATER FE-59 < 2.9 30-Mar-16 SURFACE WATER C0-60 < 2.4 30-Mar-16 SURFACE WATER ZN-65 < 3.7 30-Mar-16 SURFACE WATER ZR-NB-95 < 2.7 30-Mar-16 SURFACE WATER 1-131 < 4.4 30-Mar-16 SURFACE WATER CS-134 < 3.0 30-Mar-16 SURFACE WATER CS-137 < 2.7 30-Mar-16 SURFACE WATER BA-LA-140 < 1.5 30-Mar-16 SURFACE WATER H-3 9,549 +/- 291.0 13-Apr-16 SURFACE WATER MN-54 < 2.2 13-Apr-16 SURFACE WATER C0-58 < 1.3 13-Apr-16 SURFACE WATER FE-59 < 6.3 13-Apr-16 SURFACE WATER C0-60 < 1.6 2016 Annual Radiological Environmental Operating Report Page C-24 Wolf Creek Generating Station

Exposure Pathway - Waterborne Surface Water Location: SP Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 13-Apr-16 SURFACE WATER ZN-65 < 3.0 13-Apr-16 SURFACE WATER ZR-NB-95 < 2.8 13-Apr-16 SURFACE WATER 1-131 < 4.4 13-Apr-16 SURFACE WATER CS-134 < 2.9 13-Apr-16 SURFACE WATER CS-137 < 1.6 13-Apr-16 SURFACE WATER BA-LA-140 < 1.7 13-Apr-16 SURFACE WATER H-3 10,377 +/- 304.0 10-May-16 SURFACE WATER MN-54 < 5.7 10-May-16 SURFACE WATER C0-58 < 4.6 10-May-16 SURFACE WATER FE-59 < 4.5 10-May-16 SURFACE WATER C0-60 < 3.4 10-May-16 SURFACE WATER ZN-65 < 5.7 10-May-16 SURFACE WATER ZR-NB-95 < 4.3 10-May-16 SURFACE WATER 1-131 < 6.7 10-May-16 SURFACE WATER CS-134 < 6.2 10-May-16 SURFACE WATER CS-137 < 3.2 10-May-16 SURFACE WATER BA-LA-140 < 5.5 10-May-16 SURFACE WATER H-3 9,779 +/- 296.0 10-May-16 SURFACE WATER FE-55 < 95.0 08-Jun-16 SURFACE WATER MN-54 < 6.9 08-Jun-16 SURFACE WATER C0-58 < 2.9 08-Jun-16 SURFACE WATER FE-59 < 5.2 08-Jun-16 SURFACE WATER C0-60 < 2.5 08-Jun-16 SURFACE WATER ZN-65 < 7.5 08-Jun-16 SURFACE WATER ZR-NB-95 < 7.7 08-Jun-16 SURFACE WATER 1-131 < 9.2 08-Jun-16 SURFACE WATER CS-134 < 5.2 08-Jun-16 SURFACE WATER CS-137 < 3.5 08-Jun-16 SURFACE WATER BA-LA-140 < 3.0 08-Jun-16 SURFACE WATER H-3 9,217 +/- 286.0 19-Jul-16 SURFACE WATER MN-54 < 2.2 19-Jul-16 SURFACE WATER C0-58 < 1.8 19-Jul-16 SURFACE WATER FE-59 < 4.4 19-Jul-16 SURFACE WATER C0-60 < 1.1 19-Jul-16 SURFACE WATER ZN-65 < 3.1 19-Jul-16 SURFACE WATER ZR-NB-95 < 2.8 19-Jul-16 SURFACE WATER 1-131 < 5.3 19-Jul-16 SURFACE WATER CS-134 < 2.8 2016 Annual Radiological Environmental Operating Report Page C-25 Wolf Creek Generating Station

Exposure Pathway* Waterborne Surface Water Location: SP Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 19-Jul-16 SURFACE WATER CS-137 < 3.2 19-Jul-16 SURFACE WATER BA-LA-140 < I 3.4 19-Jul-16 SURFACE WATER H-3 10,513 +/- 305.0 17-Aug-16 SURFACE WATER MN-54 < 4.6 17-Aug-16 SURFACE WATER C0-58 < 3.2 17-Aug-16 SURFACE WATER FE-59 < 6.2 17-Aug-16 SURFACE WATER C0-60 < 2.6 17-Aug-16 SURFACE WATER ZN-65 < 5.9 17-Aug-16 SURFACE WATER ZR-NB-95 < 4.2 17-Aug-16 SURFACE WATER 1-131 < 8.1 17-Aug-16 SURFACE WATER CS-134 < 4.9 17-Aug-16 S.URFACE WATER CS-137 < 4.6 17-Aug-16 SURFACE WATER BA-LA-140 < 3.6 17-Aug-16 SURFACE WATER H-3 12,300 +/- 331.0 17-Aug-16 SURFACE WATER FE-55 < 81.0 13-Sep-16 SURFACE WATER MN-54 < 2.7 13-Sep-16 SURFACE WATER C0-58 < 2.0 13-Sep-16 SURFACE WATER FE-59 < 3.8 13-Sep-16 SURFACE WATER C0-60 < 2.2 13-Sep-16 SURFACE WATER ZN-65 < 7.1 13-Sep-16 SURFACE WATER ZR-NB-95 < 3.5 13-Sep-16 SURFACE WATER 1-131 < 5.4 13-Sep-16 SURFACE WATER CS-134 < 3.8 13-Sep-16 SURFACE WATER CS-137 < 3.2 13-Sep-16 SURFACE WATER BA-LA-140 < 1.8 13-Sep-16 SURFACE WATER H-3 11,912 +/- 327.0 12-0ct-16 SURFACE WATER MN-54 < 2.8 12-0ct-16 SURFACE WATER C0-58 < 2.8 12-0ct-16 SURFACE WATER FE-59 < 5.1 12-0ct-16 SURFACE WATER C0-60 < 3.1 12-0ct-16 SURFACE WATER ZN-65 < 4.8 12-0ct-16 SURFACE WATER ZR-NB-95 < 4.1 12-0ct-16 SURFACE WATER 1-131 < 5.2 12-0ct-16 SURFACE WATER CS-134 < 4.3 12-0ct-16 SURFACE WATER CS-137 < 3.7 12-0ct-16 SURFACE WATER BA-LA-140 < 5.0 12-0ct-16 SURFACE WATER H-3 11,484 +/- 322.0 30-Nov-16 SURFACE WATER MN-54 < 2.6 2016 Annual Radiological Environmental Operating Report Page C - 26 Wolf Creek Generating Station

Exposure Pathway - Waterborne Surface Water Location: SP Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 30-Nov-16 SURFACE WATER C0-58 < 2.1 30-Nov-16 SURFACE WATER FE-59 < 6.0 30-Nov-16 SURFACE WATER C0-60 < 1.5 30-Nov-16 SURFACE WATER ZN-65 < 3.8 30-Nov-16 SURFACE WATER ZR-NB-95 < 2.7 30-Nov.:16 SURFACE WATER 1-131 < 4.8 30-Nov-16 SURFACE WATER I CS-134 < 3.1 30-Nov-16 SURFACE WATER CS-137 < 2.8 30-Nov-16 SURFACE WATER BA-LA-140 < 3.3 30-Nov-16 SURFACE WATER H-3 11,339 +/- 320.0 30-Nov-16 SURFACE WATER FE-55 < 98.0 27-Dec:.16 SURFACE WATER MN-54 < 3.7 27-Dec-16 SURFACE WATER C0-58 < 3.7 27-Dec-16 SURFACE WATER FE-59 < 2.5 27-Dec-16 SURFACE WATER C0-60 < 1.6 27-Dec-16 SURFACE WATER

ZN-65 < 3.0 27-Dec-16 SURFACE WATER ZR-NB-95 < 3.0 27-Dec-16 SURFACE WATER 1-131 < 3.7 27-Dec-16 SURFACE WATER CS-134 < 3.1 27-Dec-16 SURFACE WATER CS-137 < 3.0 27-Dec-16 SURFACE WATER BA-LA-140 < 3.9 27-Dec-16 SURFACE WATER H-3 10,910 +/- 311.0 2016 Annual Radiological Environmental Operating Report Page C-27 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: B-12 Collection Sample Nuclide Concentration ' Duplicate Description (pCi/Liter) Analysis Date 22-Feb-16 GROUND WATER MN-54 < 2.3 22-Feb-16 GROUND WATER C0-58 < 2.4 22-Feb-16 GROUND WATER FE-59 < 6.8 22-Feb-16 GROUND WATER C0-60 < 2.9 22-Feb-16 GROUND WATER ZN-65 < 5.9 22-Feb-16 GROUND WATER ZR-NB-95 < 3.6 22-Feb-16 GROUND WATER 1-131 < 0.207 22-Feb-16 GROUND WATER CS-134 < 3.7 22-Feb-16 GROUND WATER CS-137 < 3.6 22-Feb-16 GROUND WATER BA-LA-140 < 2.0 22-Feb-16 GROUND WATER H-3 < 172.0 10-May-16 GROUND WATER MN-54 < 1.4 10-May-16 GROUND WATER MN-54 < 4.0 Duplicate 10-May-16 GROUND WATER C0-58 < 3.7 10-May-16 GROUND WATER C0-58 < 3.5 Duplicate 10-May-16 GROUND WATER FE-59 < 9.8 Duplicate 10-May-16 GROUND WATER FE-59 < 4.5 10-May-16 GROUND WATER C0-60 *< 4.6 Duplicate 10-May-16 GROUND WATER C0-60 < 1.7 10-May-16 GROUND WATER ZN-65 < 3.4 10-May-16 GROUND WATER ZN-65 < 6.2 Duplicate 10-May-16 GROUND WATER ZR-NB-95 < 5.5 Duplicate 10-May-16 GROUND WATER ZR-NB-95 < 2.0 10-May-16 GROUND WATER 1-131 < 0.238 10-May-16 GROUND WATER 1-131 < 0.367 Duplicate 10-May-16 GROUND WATER CS-134 < 3.9 10-May-16 GROUND WATER CS-134 < 5.8 Duplicate 10-May-16 GROUND WATER cs.:131 < 1.7 10-May-16 GROUND WATER CS-137 < 4.8 Duplicate 10-May-16. GROUND WATER BA-LA-140 < 1.3 10-May-16 GROUND WATER BA-LA-140 < 2.3 Duplicate 10-May-16 GROUND WATER H-3 < 150.0 Duplicate 10-May-16 GROUND WATER H-3 < 150.0 17-Aug-16 GROUND WATER . MN-54 < 2.3 17-Aug-16 GROUND WATER C0-58 < 3.7 17-Aug-16 GROUND WATER FE-59 < 8.2 17-Aug-16 GROUND WATER C0-60 < 2.7 17-Aug-16 GROUND WATER ZN-65 < 3.0 2016 Annual Radiological Environmental Operating Report Page C-28 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: B-12 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 17-Aug-16 GROUND WATER ZR-NB-95 < 4.4 17-Aug-16 GROUND WATER 1-131 < 0.31 17-Aug-16 GROUND WATER CS-134 < 4.4 17-Aug-16 GROUND WATER CS-137 < 2.5 17-Aug-16 GROUND WATER BA-LA-140 < 5.6 17-Aug-16 GROUND WATER H-3 < 149.0 30-Nov-16 GROUND WATER MN-54 < 3.8 30-Nov-16 GROUND WATER C0-58 < 2.6 30-Nov-16 GROUND WATER FE-59 < 4.9 30-Nov-16 GROUND WATER C0-60 < 1.8 30-Nov-16 GROUND WATER ZN-65 < 2. 5 30-Nov-16 GROUND WATER ZR-NB-95 < 2.4 30-Nov-16 GROUND WATER 1-131 < 0.384 30-Nov-16 GROUND WATER CS-134 < 3.8 30-Nov-16 GROUND WATER CS-137 < 4.1 30-Nov-16 GROUND WATER BA-LA-140 < 3.4 30-Nov-16 GROUND WATER H-3 < 174.0 2016 Annual Radiological Environmental Operating Report Page C-29 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: C-10 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 22-Feb-16 GROUND WATER MN-54 < 2.8 Duplicate 22-Feb-16 GROUND WATER MN-54 <- 3.5 22-Feb-16 GROUND WATER C0-58 < 1.7 Duplicate 22-Feb-16 GROUND WATER C0-58 < 1.1 22-Feb-16 GROUND WATER FE-59 < 4.3 Duplicate 22-Feb-16 GROUND WATER FE-59 < 5.3 22-Feb-16 GROUND WATER C0-60 < 2.3 Duplicate 22-Feb-16 GROUND WATER C0-60 < 3.3 22-Feb-16 GROUND WATER ZN-65 < 2.6 22-Feb-16 GROUND WATER ZN-65 < 3.1 Duplicate 22-Feb-16 GROUND WATER ZR-NB-95 < 3.2 22-Feb-16 GROUND WATER ZR-NB-95 < 3.4 Duplicate 22-Feb-16 GROUND WATER 1-131 < 0.416 Duplicate 22-Feb-16 GROUND WATER 1-131 < 0.434 22-Feb-16 GROUND WATER CS-134 < 3.2 22-Feb-16 GROUND WATER CS-134 < 3.4 Duplicate 22-Feb-16 GROUND WATER CS-137 < 2.2 Duplicate 22-Feb-16 GROUND WATER CS-137 < 2.7 22-Feb-16 GROUND WATER BA-LA-140 < 1.4 Duplicate 22-Feb-16 GROUND WATER BA-LA-140 < 2.5 22-Feb-16 GROUND WATER H-3 < 172.0 22-Feb-16 GROUND WATER H-3 < 145.0 Duplicate 10-May-16 GROUND WATER MN-54 < 1.6 10-May-16 GROUND WATER C0-58 < 2.1 10-May-16 GROUND WATER FE-59 < 2.9 10-May-16 GROUND WATER C0-60 < 1.3 10-May-16 GROUND WATER ZN-65 < 2.3 10-May-16 GROUND WATER ZR-NB-95 < 2.5 10-May-16 GROUND WATER 1-131 < 0.404 10-May-16 GROUND WATER CS-134 < 3.2 10-May-16 GROUND WATER CS-137 < 3.1 10-May-16 GROUND WATER BA-LA-140 < 1.8 10-May-16 GROUND WATER H-3 < 150.0 17-Aug-16 GROUND WATER MN-54 < 3.4 17-Aug-16 GROUND WATER C0-58 < 3.3 17-Aug-16 GROUND WATER FE-59 < 5.7 17-Aug-16 GROUND WATER C0-60 < 2.5 17-Aug-16 GROUND WATER ZN-65 < 7.3 2016 Annual Radiological Environmental Operating Report Page C- 30 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: C-10 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 17-Aug-16 GROUND WATER ZR-NB-95 < 2.8 17-Aug-16 GROUND WATER 1-131 < 0.392 17-Aug-16 GROUND WATER CS-134 < 4.0 17-Aug-16 GROUND WATER CS-137 < 4.1 17-Aug-16 GROUND WATER BA-LA-140 < 3.3 17-Aug-16 GROUND WATER H-3 < 149.0 30-Nov-16 GROUND WATER MN-54 < 2.5 30-Nov-16 GROUND WATER C0-58 < 3.2 30-Nov-16 GROUND WATER FE-59 < 4.1 30-Nov-16 GROUND WATER C0-60 < 3.1 30-Nov-16 GROUND WATER ZN-65 < 6.3 30-Nov-16 GROUND WATER ZR-NB-95 <' 1.9 30-Nov-16 GROUND WATER 1-131 < 0.396 30-Nov-16 GROUND WATER CS-134 < 3.2 30-Nov-16 GROUND WATER CS-137 < 3.2 30-Nov-16 GROUND WATER BA-LA-140 < 3.5 30-Nov-16 GROUND WATER H-3 < 174.0 2016 Annual Radiological Environmental Operating Report Page C-31 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: C-49 Collection Sample Nuclide Concentration Duplicate Date Description {pCi/Liter) Analysis 22-Feb-16 GROUND WATER MN-54 < 3.4 22-Feb-16 GROUND WATER C0-58 < 1.9 22-Feb-16 GROUND WATER FE-59 < 5.5 22-Feb-16 GROUND WATER C0-60 < 2.5 22-Feb-16 GROUND WATER ZN-65 < 6.3 22-Feb-16 GROUND WATER ZR-NB-95 < 4.7 22-Feb-16 GROUND WATER 1-131 < 0.492 22-Feb-16 GROUND WATER CS-134 < 2.9 22-Feb-16 GROUND WATER CS-137 < 3.3 22-Feb-16 GROUND WATER BA-LA-140 < 2.5 22~Feb-16 GROUND WATER H-3 < 145.0 10-May-16 GROUND WATER MN-54 < 4.5 10-May-16 GROUND WATER C0-58 < 3.4 10-May-16 GROUND WATER FE-59 < 6.1 10-May-16 GROUND WATER C0-60 < 4.3 10-May-16 GROUND WATER ZN-65 < 6.6 10-May-16 GROUND WATER ZR-NB-95 < 5.2 10-May-16 GROUND WATER 1-131 < 0.363 10-May-16 GROUND WATER CS-134 < 5.5 10-May-16 GROUND WATER CS-137 < 3.5 10-May-16 GROUND WATER BA-LA-140 < 2.7 10-May-16 GROUND WATER H-3 < 150.0 17-Aug-16 GROUND WATER MN-54 < 1.9 17-Aug-16 GROUND WATER C0-58 < 3.3 17-Aug-16 GROUND WATER FE-59 < 5.5 17-Aug-16 GROUND WATER C0-60 < 1.5 17-Aug-16 GROUND WATER ZN-65 < 6.1 17-Aug-16 GROUND WATER ZR-NB-95 < 1.9 17-Aug-16 GROUND WATER 1-131 < 0.454 17-Aug-16 GROUND WATER CS-134 < 4.0 17-Aug-16 GROUND WATER CS-137 < 3.3 17-Aug-16 GROUND WATER BA-LA-140 < 3.1 17-Aug-16 GROUND WATER H-3 < 149.0 30-Nov-16 GROUND WATER MN-54 < 3.5 30-Nov-16 GROUND WATER C0-58 < 3.5 30-Nov-16 GROUND WATER FE-59 < 6.0 30-Nov-16 GROUND WATER C0-60 < 3.6 30-Nov-16 GROUND WATER ZN-65 < 5.4 2016 Annual Radiological Environmental Operating Report Page C-32 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: C-49 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 30-Nov-16 GROUND WATER ZR-NB-95 < 3.5 30-Nov-16 GROUND WATER 1-131 < 0.316 30-Nov-16 GROUND WATER CS-134 < 4.1 30-Nov-16 GROUND WATER CS-137 < 3.0 30-Nov-16 GROUND WATER BA-LA-140 < 4.6 30-Nov-16 GROUND WATER H-3 < 174.0 2016 Annual Radiological Environmental Operating Report Page C- 33 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: F-1 Collection Sample Nuclide Concentration Duplicate Date Descrip~ion (pCi/Liter) Analysis 22-Feb-16 GROUND WATER MN-54 < 3.4 22-Feb-16 GROUND WATER C0-58 < 1.9 22-Feb-16 GROUND WATER FE-59 < 2.8 22-Feb-16 GROUND WATER C0-60 < 2.4 22-Feb-16 GROUND WATER ZN-65 < 2.7 22-Feb-16 GROUND WATER ZR-NB-95 < 2.0 22-Feb-16 GROUND WATER 1-131 < 0.474 22-Feb-16 GROUND WATER CS-134 < 3.5 22-Feb-16 GROUND WATER CS-137 < 2.3 22-Feb-16 GROUND WATER BA-LA-140 < 2.1 22-Feb-16 GROUND WATER H-3 < 145.0 10-May-16 GROUND WATER MN-54 < 2.0 10-May-16 GROUND WATER C0-58 < 2.1 10-May-16 GROUND WATER FE-59 < 4.7 10-May-16 GROUND WATER C0-60 < 2.3 10-May-16 GROUND WATER ZN-65 < 4.7 10-May-16 GROUND WATER ZR-NB-95 < 2.5 10-May-16 GROUND WATER 1-131 < 0.337 10-May-16 GROUND WATER CS-134 < 2.9 10-May-16 GROUND WATER CS-137 < 3.1 10-May-16 GROUND WATER BA-LA-140 < 1.1 10-May-16 GROUND WATER H-3 < 150.0 17-Aug-16 GROUND WATER MN-54 < 2.3 17-Aug-16 GROUND WATER C0-58 < 2.3 17-Aug-16 GROUND WATER FE-59 < 6.1 17-Aug-16 GROUND WATER C0-60 < 1.2 17-Aug-16 GROUND WATER ZN-65 < 1.7 17-Aug-16 GROUND WATER ZR-NB-95 < 2.8 17-Aug-16. GROUND WATER 1-131 < 0.298 17-Aug-16 GROUND WATER CS-134 < 2.7 17-Aug-16 GROUND WATER CS-137 < 3.1 17-Aug-16 GROUND WATER BA-LA-140 < 3.0 17-Aug-16 GROUND WATER H-3 < 149.0 30-Nov-16 GROUND WATER MN-54 < 2.9 30-Nov-16 GROUND WATER C0-58 < 1.3 30-Nov-16 GROUND WATER FE-59 < 3.8 30-Nov-16 GROUND WATER C0-60 < 2.4 30-Nov-16 GROUND WATER ZN-65 < 2.3 2016 Annual Radiological Environmental Operating Report Page C - 34 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: F-1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 30-Nov-16 GROUND WATER ZR-NB-95 < 3.0 30-Nov-16 GROUND WATER 1-131 < 0.307 30-Nov-16 GROUND WATER CS-134 < 2.7 30-Nov-16 GROUND WATER CS-137 < 2.7 30-Nov-16 GROUND WATER BA-LA-140 < 3.5 30-Nov-16 GROUND WATER H-3 < 174.0 2016 Annual Radiological Environmental Operating Report Page C- 35 Wolf Creek Generating Station

Exposure Pathway-Waterborne Ground Water Location: G-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 22-Feb-16 GROUND WATER MN-54 < 6.8 22-Feb-16 GROUND WATER C0-58 < 3.3 22-Feb-16 GROUND WATER FE-59 < 6.8 22-Feb-16 GROUND WATER C0-60 < 6.9 22-Feb-16 GROUND WATER ZN-65 < 16.4 22-Feb-16 GROUND WATER ZR-NB-95 < 10.2 22-Feb-16 GROUND WATER 1-131 < 0.419 22-Feb-16 GROUND WATER CS-134 < 8.4 22-Feb-16 GROUND WATER CS-137 < 8.2 22-Feb-16 GROUND WATER BA-LA-140 < 7.9 22-Feb-16 GROUND WATER H-3 < 145.0 10-May-16 GROUND WATER MN-54 < 2.9 10-May-16 GROUND WATER C0-58 < 2.3 10-May-16 GROUND WATER FE-59 < 2.6 10-May-16 GROUND WATER C0-60 < 2.0 10-May-16 GROUND WATER ZN-65 < 3.9 10-May-16 GROUND WATER ZR-NB-95 < 2.8 10-May-16 GROUND WATER 1-131 < 0.485 10-May-16 GROUND WATER CS-134 < 2.7 10-May-16 GROUND WATER CS-137 < 3.0 10-May-16 GROUND WATER BA-LA-140 < 2.0 10-May-16 GROUND WATER H-3 < 150.0 17-Aug-16 GROUND WATER MN-54 < 4.6 17-Aug-16 GROUND WATER C0-58 < 3.0 17-Aug-16 GROUND WATER FE-59 < 7.1 17-Aug-16 GROUND WATER C0-60 < 5.3 17-Aug-16 GROUND WATER ZN-65 < 9.3 17-Aug-16 GROUND WATER ZR-NB-95 < 3.6 17-Aug-16 GROUND WATER 1-131 < 0.383 17-Aug-16 GROUND WATER CS-134 < 6.0 17-Aug-16 GROUND WATER CS-137 < 4.4 17-Aug-16 GROUND WATER BA-LA-140 < 5.3 17-Aug-16 GROUND WATER H-3 < 149.0 30-Nov-16 GROUND WATER MN-54 < 1.4 30-Nov-16 GROUND WATER C0-58 < 1.7 30-Nov-16 GROUND WATER FE-59 < 5.4 30-Nov-16 GROUND WATER C0-60 < 2.1 30-Nov-16 GROUND WATER ZN-65 < 2.7 2016 Annual Radiological Environmental Operating Report Page C-36 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: G-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 30-Nov-16 GROUND WATER ZR-NB-95 < 3.3 30-Nov-16 GROUND WATER 1-131 < 0.281 30-Nov-16 GROUND WATER CS-134 < 3.0 30-Nov-16 GROUND WATER CS-137 < 1.8 30-Nov-16 GROUND WATER BA-LA-140 < 2.7 30-Nov-16 GROUND WATER H-3 < 174.0 2016 Annual Radiological Environmental Operating Report Page C- 37 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: J-1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 22-Feb-16 GROUND WATER MN-54 < 2.9 22-Feb-16 GROUND WATER C0-58 < 1.4 22-Feb-16 GROUND WATER FE-59 < 7.5 22-Feb-16 GROUND WATER C0-60 < 3.4 22-Feb-16 GROWND WATER ZN-65 < 9.2 22-Feb-16 GROUND WATER ZR-NB-95 < 4.8 22-Feb-16 GROUND WATER 1-131 < 0.163 22-Feb-16 GROUND WATER CS-134 < 4.2 22-Feb-16 GROUND WATER CS-137 < 2.4 22-Feb-16 GROUND WATER BA-LA-140 < 2.6 22-Feb-16 GROUND WATER H-3 < 145.0 10-May-16 GROUND WATER MN-54 < 4.0 10-May-16 GROUND WATER C0-58 < 2.7 10-May-16 GROUND WATER FE-59 < 5:8 10-May-16 GROUND WATER C0-60 < 2.1 1'0-May-16 GROUND WATER ZN-65 < 7.1 10-May-16 GROUND WATER ZR-NB-95 < 3.1 10-May-16 GROUND WATER 1-131 < 0.475 10-May-16 GROUND WATER CS-134 < 4.1 10-May-16 GROUND WATER CS-137 < 2.9 10-May-16 GROUND WATER BA-LA-140 < 1.8 10-May-16 GROUND WATER H13 < 150.0 17-Aug-16 GROUND WATER MN-54 < 1.9 17-Aug-16 GROUND WATER C0-58 < 2.3 17-Aug-16 GROUND WATER FE-59 < 5.7 17-Aug-16 GROUND WATER C0-60 < 3;8 17-Aug-16 GROUND WATER ZN-65 < 5.4 17-Aug-16 GROUND WATER ZR-NB-95 < 2.5 17-Aug-16 GROUND WATER 1-131 < 0.391 17-Aug-16 GROUND WATER CS-134 < 4.3 17-Aug-16 GROUND WATER CS-137 < 2.6 17-Aug-16 GROUND WATER BA-LA-140 < 3.0 17-Aug-16 GROUNDWATER H-3 < 148.0 30-Nov-16 GROUND WATER MN-54 < 5.9 30-Nov-16 GROUND WATER C0-58 < 4.8 30-Nov-16 GROUND WATER FE-59 < 8.3 30-Nov-16 GROUND WATER C0-60 < 5.4 30-Nov-16 GROUND WATER ZN-65 < 5.2 2016 Annual Radiological Environmental Operating Report Page C-38 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: J-1 Collection. Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 30-Nov-16 GROUND WATER ZR-NB-95 < 8.0

, 30-Nov-16 GROUND WATER 1-131 < 0.311 30-Nov-16 GROUND WATER CS-134 < 6.1 30-Nov-16 GROUND WATER CS-137 < 6.0 30-Nov-16 GROUND WATER BA-LA-140 < 4.2 30-Nov-16 GROUND WATER H-3 < 174.0 2016 Annual Radiological Environmental Operating Report Page C- 39 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: J-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 22-Feb-16 GROUND WATER MN-54 < 2.7 22-Feb-16 GROUND WATER C0-58 < 1.7 22:-Feb-16 GROUND WATER FE-59 < 4.9 22-Feb-16 GROUND WATER C0-60 < 2.0 22-Feb-16 GROUND WATER ZN-65 < 5.3 22-Feb-16 GROUND WATER ZR-NB-95 < 3.1 22-Feb-16 GROUND WATER 1-131 < 0.188 22-Feb-16 GROUND WATER CS-134 < 2.9 22-Feb-16 GROUND WATER CS-137 < 3.0 22-Feb-16 GROUND WATER BA-LA-140 < 3.0 22-Feb-16 GROUND WATER H-3 < 145.0

.10-May-16 GROUND WATER MN-54 < 2.0 10-May-16 GROUND WATER C0-58 < 1.6 10-May-16 GROUND WATER FE-59 < 2.6 10-May-16 GROUND WATER C0-:60 < 2.0 10-May-16 GROUND WATER ZN-65 < 3.4 10-May-16 GROUND WATER ZR-NB-95 < 2.5 10-May-16 GROUND WATER 1-131 < 0.453 10-May-16 GROUND WATER CS-134 < 2.6 10-May-16 GROUND WATER CS-137 < 2.2 10-May-16 GROUND WATER BA-LA-140 < 2.9 10-May-16 GROUND WATER H-3 < 150.0 17-Aug-16 GROUND WATER MN-54 < 3.4 17-Aug-16 GROUND WATER C0-58 < 1.2 17-Aug-16 GROUND WATER FE-59 < 4.9 17-Aug-16 GROUND WATER C0-60 < 2.0 17-Aug-16 GROUND WATER ZN-65 < 4.5 17-Aug-16 GROUND WATER ZR-NB-95 < 2.0 17-Aug-16 GROUND WATER 1-131 < 0.276 17-Aug-16 GROUND WATER CS-134 < 3.6 17-Aug-16 GROUND WATER CS-137 < 2.9 17-Aug-16 GROUND WATER BA-LA-140 < 3.0 17-Aug-16 GROUND WATER H-3 < 149.0 30-Nov-16 GROUND WATER MN-54 < 2.4 30-Nov-16 GROUND WATER C0-58 < 2.2 30-Nov-16 GROUND WATER FE-59 < 4.1 30-Nov-16 GROUND WATER C0-60 < 2.4 30-Nov-16 GROUND WATER ZN-65 < 4.1 2016 Annual Radiological Environmental Operating Report Page C-40 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: J-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 30-Nov-16 GROUND WATER ZR-NB-95 < 2.9 30-Nov-16 GROUND WATER 1-131 < 0.329 30-Nov-16 GROUND WATER CS-134 < 3.7 30-Nov-16 GROUND WATER CS-137 < 2.1 30-Nov-16 GROUND WATER BA-LA-140 < 4.5 30-Nov-16 GROUND WATER H-3 < 174.0 2016 Annual Radiological Environmental Operating Report Page C-41 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: L-49 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 22-Feb-16 GROUND WATER MN-54 < 2.3 22-Feb-16 GROUND WATER C0-58 < 2.5 22-Feb-16 GROUND WATER FE-59 < 3.7 22-Feb-16 GROUND WATER C0-60 < 2.1 22-Feb-16 GROUND WATER ZN-65 < 2.9 22-Feb-16 GROUND WATER ZR-NB-95 < 2.8 22-Feb-16 GROUND WATER 1-131 < 0.265 22-Feb-16 GROUND WATER CS-134 < 2.7 22-Feb-16 GROUND WATER CS-137 < 2.6 22-Feb-16 GROUND WATER BA-LA-140 < 1.9 22-Feb-16 GROUND WATER H-3 < 145.0 10-May-16 GROUND WATER MN-54 < 4.4 10-May-16 GROUND WATER C0-58 < 5.2 10-May-16 GROUND WATER FE-59 < 7.7 10-May-16 GROUND WATER C0-60 < 4.6 10-May-16 GROUND WATER ZN-65 < 8.1 10-May-16 GROUND WATER ZR-NB-95 < 6.5 10-May-16 GROUND WATER 1-131 < 0.435 10-May-16 GROUND WATER CS-134 < 5.6 10-May-16 GROUND WATER CS-137 < 3.7 10-May-16 GROUND WATER BA-LA-140 < 2.8 10-May-16 GROUND WATER H-3 < 150.0 17-Aug-16 GROUND WATER MN-54 < 3.3 17-Aug-16 GROUND WATER C0-58 < 3.0 17-Aug-16 GROUND WATER FE-59 < 4.1 17-Aug-16 GROUND WATER C0-60 < 2.7 17-Aug-16 GROUND WATER ZN-65 < 8.4 17-Aug-16 GROUND WATER ZR-NB-95 < 4.3 17-Aug-16 GROUND WATER 1-131 < 0.291 17-Aug-16 GROUND WATER CS-134 < 4.5 17-Aug-16 GROUND WATER CS-137 < 3.4 17-Aug-16 GROUND WATER BA-LA-140 < 3.4 17-Aug-16 GROUND WATER H-3 < 149.0 30-Nov-16 GROUND WATER MN-54 < 3.1 30-Nov-16 GROUND WATER C0-58 < 3.1 30-Nov-16 GROUND WATER FE-59 < 5.1 30-Nov-16 GROUND WATER C0-60 < 3.8 30-Nov-16 GROUND WATER ZN-65 < 3.7 2016 Annual Radiological Environmental Operating Report Page C-42 Wolf Creek Generating Station

Exposure Pathway - Waterborne Ground Water Location: L-49 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Liter) Analysis 30-Nov-16 GROUND WATER ZR-NB-95 < 2.8 30-Nov-16 GROUND WATER 1-131 . < 0.349 30-Nov-16 GROUND WATER CS-134 < 4.1 30-Nov-16 GROUND WATER CS-137 < 5.4 30-Nov-16 GROUND WATER BA-LA-140 < 4.8 30-Nov-16 GROUND WATER H-3 < 174.0 2016 Annual Radiological Environmental Operating Report Page C-43 Wolf Creek Generating Station

Exposure Pathway - Waterborne Drinking Water Location: BW-15 Nuclide Concentration Duplicate Collection (pCi/Liter) Analysis Date 01-Feb-16 MN-54 < 2.7 01-Feb-16 C0-58 < 3.8 01-Feb-16 FE-59 < 6.4 01-Feb-16 C0-60 < 2.4 01-Feb-16 ZN-65 < 5.2 01-Feb-16 ZR-NB-95 < 4.0 01-Feb-16 1-131 < 0.165 01-Feb-16 CS-134 < 3.2 01-Feb-16 CS-137 < 2.0 01-Feb-16 BA-LA-140 < 6.4 01-Feb-16 GROSS BETA 2.657 +/- 0.353 01-Mar-16 MN-54 < 2.4 01-Mar-16 C0-58 < 1.5 01-Mar-16 FE-59 < 4.1 01-Mar-16 C0-60 < 2.2 01-Mar-16 ZN-65 < 1.9 01-Mar-16 ZR-NB-95 < 2.2 01-Mar-16 1-131 < 0.282 01-Mar-16 CS-134 < 2.7 01-Mar-16 CS-137 < 2.5 01-Mar-16 BA-LA-140 < 1.0 01-Mar-16 GROSS BETA 2.610 +/- 0.657 04-Apr-16 MN-54 < 2.6 04-Apr-16 C0-58 < 2.4 04-Apr-16 FE-59 < 5.6 04-Apr-16 C0-60 < 2.4 04-Apr-16 ZN-65 < 5.7 04-Apr-16 ZR-NB-95 < 2.9 04-Apr-16 1-131 < 0.338 04-Apr-16 CS-134 < 3.8 04-Apr-16 CS-137 < 1.4 04-Apr-16 BA-LA-140 < 2.3 04-Apr-16 GROSS BETA 2.526 +/- 0.668 04-May-16 MN-54 < 1.6 04-May-16 C0-58 < 3.1 04-May-16 FE-59 < 3.2 04-May-16 C0-60 < 2.5 04-May-16 ZN-65 < 5.4 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station

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Page C-44

Exposure Pathway - Waterborne Drinking Water Location: BW-15 Nuclide Concentration Duplicate Collecti.on (pCi/Liter) Analysis Date 04-May-16 ZR-NB-95 < 2.7 04-May-16 1-131 < 0.348 04-May-16 CS-134 < 3.2 04-May-16 CS-137 < 2.3 04-May-16 BA-LA-140 < 2.0 04-May-16 GROSS BETA 2.641 +/- 0.661 06-Jun-16 MN-54 < 5.3 06-Jun-16 C0-58 < 3.7 06-Jun-16 FE-59 < 10.6 06-Jun-16 C0-60 < 3.3 06-Jun-16 ZN-65 < 4.7 06-Jun-16 ZR-NB-95 < 5.2 06-Jun-16 1-131 < 0.45 06-Jun-16 CS-134 < 5.4 06-Jun-16 CS-137 < 2.5 06-Jun-16 BA-LA-140 < 2.6 06-Jun-16 GROSS BETA 2.185 +/- 0.631 12-Jul-16 MN-54 < 3.1 12-Jul-16 C0-58 < 1.9 12-Jul-16 FE-59 < 2.5 12-Jul-16 C0-60 < 1.7 12-Jul-16 ZN-65 < 4.5 12-Jul-16 ZR-NB-95 < 1.8 12-Jul-16 1-131 < 0.337 12-Jul-16 CS-134 < 2.7 12-Jul-16 CS-137 < 1.6 12-Jul-16 BA-LA-140 < 3.5 12-Jul-16 GROSS BETA 2.483 +/- 0.637 02-Aug-16 MN-54 < 3.8 02-Aug-16 C0-58 < 2.1 02-Aug-16 FE-59 < 4.1 02-Aug-16 C0-60 < 1.1 02-Aug-16 ZN-65 < 4.1 02-Aug-16 ZR-NB-95 < 2.4 02-Aug-16 1-131 < 0.177 02-Aug-16 CS-134 < 3.9 02-Aug-16 CS-137 < 1.7 02-Aug-16 BA-LA-140 < 2.7 20*1 GAnnual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-45

'\

Exposure Pathway - Waterborne Drinking Water Location: BW-15 Nuclide Concentration Duplicate Collection (pCi/Liter) Analysis Date '

02-Aug-16 GROSS BETA 3.227 +/- 0.683 07-Sep-16 MN-54 < 5.5 07-Sep-16 C0-58 < 5.1 07-Sep-16 FE-59 < 4.1 07-Sep-16 C0-60 < 4.8 07-Sep-16 ZN-65 < 3.0 07-Sep-16 ZR-NB-95 < 5.5 07-Sep-16 1-131 < 0.293 07-Sep-16 CS-134 < 5.8 07-Sep-16 CS-137 < 4.5 07-Sep-16 BA-LA-140 < 5.9 07-Sep-16 GROSS BETA 2.954 +/- 0.505 03-0ct-16 MN-54 < 2.9 03-0ct-16 C0-58 < 1.4 03-0ct-16 FE-59 < 5.7 03-0ct-16 C0-60 < 1.9 03-0ct-16 ZN-65 < 8.0 03-0ct-16 ZR-NB-95 < 3.1 03-0ct-16 1-131 < 0.216 03-0ct-16 CS-134 < 3.8 03-0ct-16 CS-137 < 2.1 03-0ct-16 BA-LA-140 < 3.6 03-0ct-16 GROSS BETA 3.087 +/- 0.495 08-Nov-16 MN-54 < 3.9 08-Nov-16 C0-58 < 3.8 08-Nov-16 FE-59 < 1.8 08-Nov-16 C0-60 < 3.9 08-Nov-16 ZN-65 < 7.7 08-Nbv-16 ZR-NB-95 < 4.4 08-Nov-16 1-131 < 0.294 08-Nov-16 CS-134 < 3.9 08-Nov-16 CS-137 < 4.1 08-Nov-16 BA-LA-140 < 3.3 08-Nov-16 GROSS BETA 2.727 +/- 0.66 05-Dec-16 MN-54 < 2.8 05-Dec-16 C0-58 < 2.9 05-Dec-16 FE-59 < 4.2 05-Dec-16 C0-60 < 2.0 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-46

Exposure Pathway - Waterborne Drinking Water Location: BW-15 Nuclide Concentration Duplicate Collection (pCi/Liter) Analysis Date 05-Dec-16 ZN-65 < 2.4 05-Dec-16 ZR-NB-95 < 2.6 05-Dec-16 1-131 < 0.367 05-Dec-16 CS-134 < 2.4 05-Dec-16 CS-137 < 1.7 05-Dec-16 BA-LA-140 < 3.1 05-Dec-16 GROSS BETA 3.051 +/- 0.685 04-Jan-17 MN-54 < 2.1 04-Jan-17 C0-58 < 2.6 04-Jan-17 FE-59 < 5.1 04-Jan-17 C0-60 < 1.9 04-Jan-17 ZN-65 < 1.7 04-Jan-17 ZR-NB-95 < 3.5 04-Jan-17 1-131 < 0.432 04-Jan-17 CS-134 < 3.3 04-Jan-17 CS-137 < 3.2 04-Jan-17 BA-LA-140 < 4.7 04-Jan-17

GROSS BETA 2.430 +/- 0.647 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station PageC-47

Exposure Pathway - Waterborne Drinking Water Location: 10-DW Nuclide Concentration Duplicate Collection (pCi/Liter) Analysis Date 01-Feb-16 MN-54 < 2.0 01-Feb-16 C0-58 < 2.8 01-Feb-16 FE-59 < 3.7 01-Feb-16 C0-60 < 2.7 01-Feb-16 ZN-65 < 4.6 01-Feb-16 ZR-NB-95 < 3.3 01-Feb-16 1-131 < 0.17 01-Feb-16 CS-134 < 2.8 01-Feb-16 CS-137 < 3.2 01-Feb-16 BA-LA-140 < 2.3 01-Feb-16 GROSS BETA 2.291 +/- 0.355 01-Mar-16 MN-54 < 2.3 01-Mar-16 C0-58 < 2.7 01-Mar-16 FE-59 < 3.4 01-Mar-16 C0-60 < 2.2 01-Mar-16 ZN-65 < 4.6 01-Mar-16 ZR-NB-95 < 2.3 01-Mar-16 1-131 < 0.251 01-Mar-16 CS-134 < 3.6 01-Mar-16 CS-137 < 1.9 01-Mar-16 BA-LA-140 < 2.1 01-Mar-16 GROSS BETA 2.613 +/- 0.706 04-Apr-16 MN-54 < 2.0 04-Apr-16 C0-58 < 2.6 04-Apr-16 FE-59 < 3.6 04-Apr-16 C0-60 < 2.9 04-Apr-16 ZN-65 < 4.5 04-Apr-16 ZR-NB-95 < 2.3 04-Apr-16 1-131 < 0.308 04-Apr-16 CS-134 < 2.9 04-Apr-16 CS-137 < 2.7 04-Apr-16 BA-LA-140 < 1.5 04-Apr-16 GROSS BETA 2.538 +/- 0.667 04-May-16 MN-54 < 2.5 04-May-16 C0-58 < 1.2 04-May-16 FE-59 < 3.9 04-May-16 C0-60 < 2.5 04-May-16 ZN-65 < 3.8 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station

Page C-48

Exposure Pathway - Waterborne Drinking Water Location: 10-DW Nuclide Concentration Duplicate Collection (pCi/Liter) Analysis Date 04-May-16 ZR-NB-95 < 3.4 04-May-16 1-131 < 0.36 04-May-16 CS-134 < 2.6 04-May-16 CS-137 < 2.9 04-May-16 BA-LA-140 < 3.2 04-May-16 GROSS BETA 2.254 +/- 0.628 06-Jun-16 MN-54 < 2.2 06-Jun-16 C0-58 < 1.4 06-Jun-16 FE-59 < 4.2 06-Jun-16 C0-60 -< 2.1 06-Jun-16 ZN-65 < 4.5 06-Jun-16 ZR-NB-95 < 1.4 06-Jun-16 1-131 < 0.28 06-Jun-16 CS-134 < 2.6 06-Jun-16 CS-137 < 3.1 06-Jun-16 BA-LA-140 < 2.0 06-Jun-16 GROSS BETA 1.928 +/- 0.601 12-Jul-16 MN-54 < 2.2 12-Jul-16 C0-58 < 1.7 12-Jul-16 - FE-59 < 2.0 12-Jul-16 C0-60 < 2.0 12-Jul-16 ZN-65 < 2.6 12-Jul-16 ZR-NB-95 < 2.7 12-Jul-16 1-131 < 0.43 12-Jul-16 CS-134 < 2.6 12-Jul-16 CS-137 < 3.2 12-Jul-16 BA-LA-140 < 2.5 12-Jul-16 GROSS BETA 3.060 +/- 0.668 02-Aug-16 MN-54 < 2.8 02-Aug-16 C0-58 < 2.0 02-Aug-16 FE-59 < 3.6 02-Aug-16 C0-60 < 1.5 02-Aug-16 ZN-65 < 2.1 02-Aug-16 ZR-NB-95 < 2.3 02-Aug-16 1-131 < 0.167 02-Aug-16 CS-134 < 2.9 02-Aug-16 CS-137 < 3.8 02-Aug-16 BA-LA-140 < 2.8 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-49

Exposure Pathway-Waterborne Drinking Water Location: 10-DW Nuclide Concentration Duplicate Collection (pCi/Liter) Analysis Date 02-Aug-16 GROSS BETA 2.935 +/- 0.674 07-Sep-16 MN-54 < 4.2 07-Sep-16 C0-58 < 1.9 07-Sep-16 FE-59 < 3.8 07-Sep-16 C0-60 < 2.8 07-Sep-16 ZN-65 < 4.7 07-Sep-16 ZR-NB-95 < 3.7 07-Sep-16 1-131 < 0.268 07-Sep-16 CS-134 < 3.9 07-Sep-16 CS-137 < 3.6 07-Sep-16 BA-LA-140 < 2.5 07-Sep-16 GROSS BETA 3.084 +/- 0.511 03-0ct-16 MN-54 < 2.6 03-0ct-16 C0-58 < 2.1 03-0ct-16 FE-59 < 4.4 03-0ct-16 C0-60 < 2.0 J03-0ct-16 ZN-65 < 3.0 03-0ct-16 ZR-NB-95 < 1.4 03-0ct-16 1-131 < 0.409 03-0ct-16 CS-134 < 2.8 03-0ct-16 CS-137 < 2.2 03-0ct-16 BA-LA-140 < 2.7 03-0ct-16 GROSS BETA 3.279 +/- 0.507 08-Nov-16 MN-54 < 2.5 08-Nov-16 C0-58 < 2.1 08-Nov-16 FE-59 < 5.4 08-Nov-16 C0-60 < 2.8 08-Nov-16 ZN-65 < 5.8 08-Nov-16 ZR-NB-95 < 3.3 08-Nov-16 1-131 < 0.293 08-Nov-16 CS-134 < 3.8 08-Nov-16 CS-137 < 3.2 08-Nov-16 BA-LA-140 < 4.1 08-Nov-16 GROSS BETA 3.779 +/- 0.739 05-Dec-16 MN-54 < 2.9 05-Dec-16 C0-58 < 1.4 05-Dec-16 FE-59 < 3.5 05-Dec-16 C0-60 < 2.3 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-50

Exposure Pathway - Waterborne Drinking Water Location: 10-DW Nuclide Concentration Duplicate Collection (pCi/Liter) Analysis Date 05-Dec-16 ZN-65 < 6.4 05-Dec-16 ZR-NB-95 < 2.3 05-Dec-16 l-;131 < 0.474 05-Dec-16 CS-134 < 3.8 05-Dec-16 CS-137 < 3.5 05-Dec-16 BA-LA-140 < 3.5 05-Dec-16 GROSS BETA 3.969 +/- 0.772 04-Jan-17 MN-54 < 2.4 04-Jan-17 C0-58 < 2.3 04-Jan-17 FE-59 < 3.7 04-Jan-17 C0-60 < 2.6 04-Jan-17 ZN-65 < 1.7 04-Jan-17 ZR-NB-95 < 1.7 04-Jan-17 1-131 <- 0.486 04-Jan-17 CS-134 < 2.8 04-Jan-17 CS-137 < 2.8 04-Jan-17 BA-LA-140 < 3.6 04-Jan-17 GROSS BETA 2.588 +/- 0.655 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 51

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location: BW-15 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 04-Apr-16 H-3 < 138 04-Apr-16 H-3 < 138 Duplicate 12-Jul-16 H-3 < 143 03-0ct-16 H-3 < 157 04-Jan-17 H-3 < 155 2016 Annual Radiological Environmental Operating Report Page C-52 Wolf Creek Generating Station

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location: 10-DW Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 04-Apr-16 H-3 < 142 12-Jul-16 H-3 228 +/- 83 12-Jul-16 H-3 238 +/- 85 Reanalysis 03-0ct-16 H-3 < 157 04-Jan-17 H-3 < 155 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 53

Exposure Pathway - Waterborne Shoreline Sediment Location: DC Sample Nuclide Concentration Duplicate Collection Description (pCi/Kg Dry) Analysis Date 27-Apr-16 SHORELINE SEDIMENT K-40 12,005.0+/- 801.9 27-Apr-16 SHORELINE SEDIMENT MN-54 < 34.0 27-Apr-16 SHORELINE SEDIMENT C0-58 < 29.7 27-Apr-16 SHORELINE SEDIMENT FE-59 < 62.1 27-Apr-16 SHORELINE SEDIMENT C0-60 < 16.3 27-Apr-16 SHORELINE SEDIMENT ZN-65 < 64.8 27-Apr-16 SHORELINE SEDIMENT CS-134 < 22.4 27-Apr-16 SHORELINE SEDIMENT CS-137 199.8 +/- 35.1 27-0ct.,.16 SHORELINE SEDIMENT K-40 10,437.0 +/- 258:6 27-0ct-16 SHORELINE SEDIMENT MN-54 < 10.6 27-0ct-16 SHORELINE SEDIMENT C0-58 < 12.2 27-0ct-16 SHORELINE SEDIMENT FE-59 < 18.3 27-0ct-16 SHORELINE SEDIMENT C0-60 < 9.1 27-0ct-16 SHORELINE SEDIMENT ZN-65 < 19.3 27-0ct-16 SHORELINE SEDIMENT CS-134 < 7.1 27-0ct-16 SHORELINE SEDIMENT CS-137 120.1 +/- 8.8 2016 Annual Radiological Environmental Operating Report Page C-54 Wolf Creek Generating Station

Exposure Pathway - Waterborne Shoreline Sediment Location: EEA Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 09-Jun-16 SHORELINE SEDIMENT K-40 11,433.0 +/- 711.5 Duplicate 09-Jun-16 SHORELINE SEDIMENT K-40 11, 155.0 +/- 654.2 09-Jun-16 SHORELINE SEDIMENT . MN-54 < 29.6 Duplicate 09-Jun-16 SHORELINE SEDIMENT MN-54 < 30.5 09-Jun-16 SHORELINE SEDIMENT C0-58 < 31.5 Duplicqte*

09-Jun-16 SHORELINE SEDIMENT C0-58 < 23.8 09-Jun-16 SHORELINE SEDIMENT FE-59 < 99.3 Duplicate 09-Jun-16 SHORELINE SEDIMENT FE-59 < 39.5 09-Jun-16 SHORELINE SEDIMENT C0-60 < 23.5 09-Jun-16 SHORELINE SEDIMENT C0-60 < 13.9 Duplicate 09-Jun-16 SHORELINE SEDIMENT ZN-65 < 68.9 Duplicate 09-Jun-16 SHORELINE SEDIMENT ZN-65 < 43.5 09-Jun-16 SHORELiNE SEDIMENT CS-134 < 21.5 Duplicate 09-Jun-16 SHORELINE SEDIMENT CS-134 < 18.8 09-Jun-16 SHORELINE SEDIMENT CS-137 2~7.6 +/- 39.1 Duplicate 09-Jun-16 SHORELINE SEDIMENT CS-137 270.8 +/- 37.2 01-Aug-16 SHORELINE SEDIMENT K-40 12,465.0 +/- 706.1 01-Aug-16 SHORELINE SEDIMENT K-40 13,244.0 +/- 805.7 Duplicate 01-Aug~16 SHORELINE SEDIMENT MN-54 < 26.3 01-Aug-16 SHORELINE SEDIMENT MN-54 < 32.8 Duplicate 01-Aug-16 SHORELINE SEDIMENT C0-58 < 29.1 Duplicate 01-Aug-16 SHORELINE SEDIMENT C0-58 < 25.5 01-Aug-16 SHORELINE SEDIMENT FE:-59 < 40.7 Duplicate 01-Aug-16. SHORELINE SEDIMENT FE-59 < 32.5 01-Aug-16 SHORELINE SEDIMENT C0-60 < 20.3 01-Aug-16 SHORELINE SEDIMENT C0-60 < 15.5 Duplicate 01-Aug-16 SHORELINE SEDIMENT ZN-65 < 60.2 01-Aug-16 SHORELINE SEDIMENT ZN-65 < 63.8 Duplicate 01-Aug-16 SHORELINE SEDIMENT CS-134 < 23.1 0.1-Aug-16 SHORELINE SEDIMENT CS-134 < 27.4 Duplicate 01-Aug-16 SHORELINE SEDIMENT CS-137 96.9 +/- 27.2 01-Aug-16 SHORELINE SEDIMENT CS-137 134.1 +/- 41.7 Duplicate 2016 Annual Radiological Environmental Operating Report Page C - 55 Wolf Creek Generating Station

Exposure Pathway - Waterborne Shoreline Sediment Location: JRR Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 25-Apr-16 SHORELINE SEDIMENT K-40 11,582.0 +/- 913.6 25-Apr-16 SHORELINE SEDIMENT --*MN-54 < 40.7 25-Apr-16 SHORELINE SEDIMENT C0-58 < 36.3 25-Apr-16 SHORELINE SEDIMENT FE-59 < 119.8 25-Apr-16 SHORELINE SEDIMENT C0-60 < 30.2 25-Apr-16 SHORELINE SEDIMENT ZN-65 < 79.4 25-Apr-16 SHORELINE SEDIMENT CS-134 < 36.6 25-Apr-16 SHORELINE SEDIMENT CS-137 < 37.5 27-0ct-16 SHORELINE SEDIMENT K-40 16,380.0 +/- 1,435.0 27-0ct-16 SHORELINE SEDIMENT MN-54 < 72.4 27-0ct-16 SHORELINE SEDIMENT C0-58 < 55.5 27-0ct-16 SHORELINE SEDIMENT FE-59 < 145.9 27-0ct-16 SHORELINE SEDIMENT C0-60 < 53.5 27-0ct-16 SHORELINE SEDIMENT ZN-65 < 80.9 27-0ct-16 SHORELINE SEDIMENT CS-134 < 48.6 27-0ct-16 SHORELINE SEDIMENT CS-137 112.9+/- 59.3 2016 Annual Radiological Environmental Operating Report Page C - 56 Wolf Creek Generating Station

Exposure Pathway - Ingestion Fish Location: CCL Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet} Analysis 05-May-16 COMMON CARP K-40 3, 180.2+/- 374.6 05-May-16 COMMON CARP MN-54 < 15.6 05-May-16 COMMON CARP C0-58 < 10.6 05-May-16 COMMON CARP FE-59 < 27.9 05-May-16 COMMON CARP C0-60 < 9.6 05-May-16 COMMON CARP ZN-65 < 24.8 05-May-16 COMMON CARP 1-131 < 31.9 05-May-16 COMMON CARP CS-134 < 14.6 05-May-16 COMMON CARP CS-137 < 14.0 05-May-16 COMMON CARP H-3 7,005.0 +/- 223.0 05-May-16 FRESHWATER DRUM K-40 3,869.7 +/- 408.2 05-May-16 FRESHWATER DRUM MN-54 < 7.6 05-May-16 FRESHWATER DRUM C0-58 < 9.5 05-May-16 FRESHWATER DRUM FE-59 < 23.7 05-May-16 FRESHWATER DRUM C0-60 < 9.3 05-May-16 FRESHWATER DRUM ZN-65 < 16.6 05-May-16 FRESHWATER DRUM 1-131 < 33.8 05-May-16 FRESHWATER DRUM CS-134 < 13.7 05:.May-16 FRESHWATER DRUM CS-137 < 11.9 05-May-16 FRESHWATER DRUM H-3 6,956.0 +/- 224.0 05-May-16 SMALLMOUTH BASS K-40 3,810.7 +/- 409.0 05-May-16 SMALLMOUTH BASS MN-54 < 7.7 05-May-16 SMALLMOUTH BASS C0-58 < 11.4 05-May-16 SMALLMOUTH BASS FE-59 < 29.1 05-May-16 SMALLMOUTH BASS C0-60 < 13.7 05-May-16 SMALLMOUTH BASS ZN-65 < 24.7 05-May-16 SMALLMOUTH BASS 1-131 < 27.5 05-May-16 SMALLMOUTH BASS CS-134 < 14.1 05-May-16 SMALLMOUTH BASS CS-137 < 14.0 05-May-16 SMALLMOUTH BASS H-3 7,317.0+/- 227.0 05-May-16 SMALLMOUTH BUFFALO K-40 3,787.6 +/- 457.2 05-May-16 SMALLMOUTH BUFFALO MN-54 < 11.9 05-May-16 SMALLMOUTH BUFFALO C0-58 < 13.2 05-May-16 SMALLMOUTH BUFFALO FE-59 < 26.5 05-May-16 SMALLMOUTH BUFFALO C0-60 < 11.7 05-May-16 SMALLMOUTH BUFFALO ZN-65 < 17.8 05-May-16 SMALLMOUTH BUFFALO 1-131 < 40.8 05-May-16 SMALLMOUTH BUFFALO CS-134 < 13.8 2016 Annual Radiological Environmental Operating Report Page C - 57 Wolf Creek Generating Station

Exposure Pathway - Ingestion Fish Location: CCL Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 05-May-16 SMALLMOUTH BUFFALO CS-137 < 16.7 05-May-16 SMALLMOUTH BUFFALO H-3 6,407.0 +/- 204.0 05.'.May-16 WHITE CRAPPIE K-40 3, 165.1 +/- 400.5 05-May-16 WHITE CRAPPIE MN-54 < 17.2 05-May-16 WHITE CRAPPIE C0-58 < 13.3 05-May-16 WHITE CRAPPIE FE-59 < 24.2 05-May-16 WHITE CRAPPIE C0-60 < 12.8 1

05-May-16 WHITE CRAPPIE ZN-65 < 22.3 05-May-16 WHITE CRAPPIE 1-131 < 40.6 05-May-16 WHITE CRAPPIE CS-134 < 15.7 05-May-16 WHITE CRAPPIE CS-137 < 11.1 05-May-16 WHITE CRAPPIE H-3 7,189.0+/- 227.0 02-Nov-16 BLUE CATFISH K-40 2,771.9+/- 349_3*

02-Nov-16 BLUE CATFISH MN-54 < 11.7 02-Nov-16 BLUE CATFISH C0-58 < 9.3 02-Nov-16 BLUE CATFISH FE-59 < 22.5 02-Nov-16 BLUE CATFISH C0-60 < 12.7 02-Nov-16 BLUE CATFISH ZN-65 < 12.9 02-Nov-16 BLUE CATFISH 1-131 < 51.0 02-Nov-16 BLUE CATFISH CS-134 < 12.5 02-Nov-16 BLUE CATFISH CS-137 < 12.4 02-Nov-16 BLUE CATFISH H-3 8,243.0 +/- 248.0 02-Nov-16 CHANNEL CATFISH K-40 3,629.5 +/- 395.3 02-Nov-16 CHANNEL CATFISH MN-54 < 9.7 02-Nov-16 ' CHANNEL CATFISH C0-58 < 6.5 02-Nov-16 CHANNEL CATFISH FE-59 < 26.4 02-Nov-16 CHANNEL CATFISH C0-60 < 12.7 02-Nov-16 CHANNEL CATFISH ZN-65 < 12.5 02-Nov-16 CHANNEL CATFISH 1-131 < 67.0 02-Nov-16 CHANNEL CATFISH CS-134 < 13.7 02-Nov-16 CHANNEL CATFISH CS-137 < 11.6 02-Nov-16 CHANNEL CATFISH H-3 7,885.0 +/- 241.0 02-Nov-16 SMALLMOUTH BUFFALO K-40 2,895.9+/- 394.0 02-Nov-16 SMALLMOUTH BUFFALO MN-54 < 13.9 02-Nov-16 SMALLMOUTH BUFFALO C0-58 < 12.0 02-Nov-16 SMALLMOUTH BUFFALO FE-59 < 36.3 02-Nov-16 SMALLMOUTH BUFFALO C0-60 < 6.3 02-Nov-16 SMALLMOUTH BUFFALO ZN-65 < 24.1 2016 Annual Radiological Environmental Operating Report Page C-58 Wolf Creek Generating Station

Exposure Pathway - Ingestion Fish Location: CCL Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 02-Nov-16 SMALLMOUTH BUFFALO 1-131 < 83.5 02-Nov-16 SMALLMOUTH BUFFALO CS-134 < 17.7 02-Nov-16 SMALLMOUTH BUFFALO CS-137 < 13.3 02-Nov-16 SMALLMOUTH BUFFALO H-3 7,364.0 +/- 228.0 02-Nov-16 WALLEYE K-40 4, 132.7 +/- 442.2 02-Nov-16 WALLEYE MN-54 < 14.1 02-Nov-16 WALLEYE C0-58 < 10.0 02-Nov-16 WALLEYE FE-59 < 26.9 02-Nov-16 WALLEYE C0-60 < 11.4 02-Nov-16 WALLEYE ZN-65 < 33.1 02-Nov-16 WALLEYE 1-131 < 42.2

02-Nov-16 WALLEYE CS-134 < 17.7 02-Nov-16 WALLEYE CS-137 < 16.7 02-Nov-16 WALLEYE H-3 6,601.0 +/- 255.0 02-Nov-16 WHITE BASS K-40 3,525.4+/- 421.6 02-Nov-16

WHITE BASS MN-54 < 11.4 02-Nov-16 WHITE BASS C0-58 < 15.7 02-Nov-16 WHITE BASS FE-59 < 23.6 02-Nov-16 WHITE BASS C0-60 < 9.8 02-Nov-16 WHITE BASS ZN-65 < 23.2 02-Nov-16 WHITE BASS 1-131 < 50.8 02-Nov-16 *WHITE BASS CS-134 < 15.3 02-Nov-16 WHITE BASS CS-137 < 11.1 02-Nov-16 WHITE BASS H-3 7,770.0 +/- 238.0 2016 Annual Radiological Environmental Operating Report Page C-59 Wolf Creek Generating Station

Exposure Pathway - Ingestion Fish Location: JRR Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 25-Apr-16 BIGMOUTH BUFFALO K-40 3,921.5 +/- 383.5 25-Apr-16 BIGMOUTH BUFFALO MN-54 < 8.5 25-Apr-16 BIGMOUTH BUFFALO C0-58 < 12.9 25-Apr-16 BIGMOUTH BUFFALO . FE-59 < 25.7 25-Apr-16 BIGMOUTH BUFFALO C0-60 < 16.5 25-Apr-16 BIGMOUTH BUFFALO ZN-65 < 19.1 25-Apr-16 BIGMOUTH BUFFALO 1-131 < 21.3 25-Apr-16 BIGMOUTH BUFFALO CS-134 < 15.5 25-Apr-16 BIGMOUTH BUFFALO CS-137 < 8.8 25-Apr-16 BIGMOUTH BUFFALO H-3 < 117.0 25-Apr-16 CHANNEL CATFISH K-40 3,216.3 +/- 390.7 25-Apr-16 CHANNEL CATFISH MN-54 < 10.8 25:-Apr-16 CHANNEL CATFISH C0-58 < 7.4 25-Apr-16 CHANNEL CATFISH FE-59 < 29.2 25-Apr-16 CHANNEL CATFISH C0-60 < 11.4 25-Apr-16 CHANNEL CATFISH ZN-65 < 29.3 25-Apr-16 CHANNEL CATFISH 1-131 < 19.3 25-Apr-16 CHANNEL CATFISH CS-134 < 13.9 25-Apr-16 CHANNEL CATFISH CS-137 < 13.8 25-Apr-16 CHANNEL CATFISH H-3 < 120.0 25-Apr-16 COMMON CARP K-40 3,399.3 +/- 415.2 25-Apr-16 COMMON CARP MN-54 < 14.0I 25-Apr-16 COMMON CARP C0-58 < 8.9' 25,.Apr-16 COMMON CARP FE-59 < 25.6 25-Apr-16 COMMON CARP C0-60 < 13.1 25-Apr-16 COMMON CARP ZN-65 < 23.8 25-Apr-16 COMMON CARP 1-131 < 27.8 25-Apr-16 COMMON CARP CS-134 < 16.5 25-Apr-16 COMMON CARP CS-137 < 11.0 25-Apr-16 COMMON CARP H-3 < 117.0

25-Apr-16 LARGEMOUTH BASS K-40 3,498.8 +/- 399.3 25-Apr-16 LARGEMOUTH BASS MN-54 < 12.1 25-Apr-16 LARGEMOUTH BASS C0-58 < 11.8 25-Apr-16 LARGEMOUTH BASS FE-59 < 38.7 25-Apr-16 LARGEMOUTH BASS C0-60 < 9.7 25-Apr-16 LARGEMOUTH BASS ZN-65 < 35.3 25-Apr-t6 LARGEMOUTH BASS 1-131 < 33.6 25-Apr-16 LARGEMOUTH BASS CS-134 < 13.5 2016 Annual Radiological Environmental Operating Report Page C-60 Wolf Creek Generating Station

Exposure Pathway - Ingestion Fish Location: JRR Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 25-Apr-16 LARGEMOUTH BASS CS-137 < 14.0 25-Apr-16 LARGEMOUTH BASS H-3 < 122.0 25-Apr-16 SMALLMOUTH BUFFALO K-40 3,523.9 +/- 400.0 25-Apr-16 SMALLMOUTH BUFFALO MN-54 < 13.4 25-Apr-16 SMALLMOUTH BUFFALO C0-58 < 8.2 25-Apr-16 SMALLMOUTH BUFFALO FE-59 < 26.1 25-Apr-16 SMALLMOUTH BUFFALO C0-60 < 10.9 25-Apr-16 SMALLMOUTH BUFFALO ZN-65 < 21.0 25-Apr-16 SMALLMOUTH BUFFALO 1-131 < 23.1 25-Apr-16 SMALLMOUTH BUFFALO CS-134 < 15.0 25-Apr-16 SMALLMOUTH BUFFALO CS-137 < 16.3 25-Apr-16 SMALLMOUTH BUFFALO H-3 < 116.0 25-Apr-16 WHITE CRAPPIE K-40 3,374.7 +/- 365.8 25-Apr-16 WHITE CRAPPIE MN-54 < 14.9 25-Apr-16 WHITE CRAPPIE C0-58 < 10.7 25-Apr-16 WHITE CRAPPIE FE-59 < 20.7 25-Apr-16 WHITE CRAPPIE C0-60 < 12.6 25-Apr-16 WHITE CRAPPIE ZN-65 < 21.7 25-Apr-16 WHITE CRAPPIE 1-131 < 16.3 25-Apr-16 WHITE CRAPPIE CS-134 < 12.0 25-Apr-16 WHITE CRAPPIE CS-137 < 12.1 25-Apr-16 WHITE CRAPPIE H-3 < 118.0 17-0ct-16 BASS K-40 3,696.1 +/- 485.1 17-0ct-16 BASS MN-54 < 12.3 17-0ct-16 BASS C0-58 < 7.8 17-0ct-16 BASS FE-59 < 28.9 17-0ct-16 BASS C0-60 < 13.4 17-0ct-16 BASS ZN-65 < 22.7 17-0ct-16 BASS 1-131 < 74.3 17-0ct-16 BASS CS-134 < 16.8 17-0ct-16 BASS CS-137 < 12.2 17-0ct-16 BASS H-3 < 133.0 17-0ct-16 BIGMOUTH BUFFALO K-40 3,552.5 +/- 331.8 17-0ct-16 BIGMOUTH BUFFALO MN-54 < 13.4 17-0ct-16 BIGMOUTH BUFFALO C0-58 < 12.0 17-0ct-16 BIGMOUTH BUFFALO FE-59 < 26.6 17-0ct-16 BIGMOUTH BUFFALO C0-60 < 8.0 17-0ct-16 BIGMOUTH BUFFALO ZN-65 < 24.1 2016 Annual Radiological Environmental Operating Report Page C-61 Wolf Creek Generating Station

Exposure Pathway - Ingestion Fish Location: JRR Collection Sample *Nuclide Concentration Duplicate Date Description (pCilKg Wet) . Analysis 17-0ct-16 BIGMOUTH BUFFALO 1-131 < 44.8 17-0ct-16 BIGMOUTH BUFFALO CS-134 < 12.7 17-0ct-16 BIGMOUTH BUFFALO CS-137 < 11.9 17-0ct-16 BIGMOUTH BUFFALO H-3 < 135.0 17-0ct-16 COMMON CARP K-40 3,348.8 +/- 370.9 17-0ct-16 COMMON CARP MN-54 < 10.7 17-0ct-16 COMMON CARP C0-58 < 12.1 17-0ct-16 COMMON CARP FE-59 < 39.9 17-0ct-16 COMMON CARP C0-60 < 13.2 17-0ct-16 COMMON CARP ZN-65 < 30.5 17-0ct-16 COMMON CARP 1-131 < 85.9 17-0ct-16 COMMON CARP CS-134 < 12.8 17-0ct-16 COMMON CARP CS-137 < 12.4 17-0ct-16 COMMON CARP H-3 < 135.0 17-0ct-16 CRAPPIE K-40 3,347.3 +/- 311.0 17-0ct-16 CRAPPIE MN-54 * < 10.1 17-0ct-16 CRAPPIE C0-58 < 9.6 17-0ct-16 CRAPPIE FE-59 < 20.3 17-0ct-16 CRAPPIE C0-60 < 8.7 17-0ct-16 CRAPPIE ZN-65 < 23.3 17-0ct-16 CRAPPIE 1-131 < 48.9 17-0ct-16 CRAPPIE CS-134 < 10.6 17-0ct-16 CRAPPIE CS-137 < 13.4 17-0ct-16 CRAPPIE H-3 < 135.0 17-0ct-16 SMALLMOUTH BUFFALO K-40 3, 127.6 +/- 408.3 17-0ct-16 SMALLMOUTH BUFFALO MN-54 < 8.8 17-0ct-16 SMALLMOUTH BUFFALO C0-58 < 12.1 17-0ct-16 SMALLMOUTH BUFFALO FE-59 < 26.2 17-0ct-16 SMALLMOUTH BUFFALO C0-60 < 13.1 17~0ct-16 SMALLMOUTH BUFFALO ZN-65 < 24.6 17-0ct-16 SMALLMOUTH BUFFALO 1-131 < 60.7 17-0ct-16 SMALLMOUTH BUFFALO CS-134 <. 14.4 17-0ct-16 SMALLMOUTH BUFFALO CS-137 < 15.0 17-0ct-16 SMALLMOUTH BUFFALO H-3 < 131.0 17-0ct-16 WHITE BASS K-40 3,413.6 +/- 317.5 17-0ct-16 WHITE BASS. MN-54 < 11.6 17-0ct-16 WHITE BASS C0-58 < 12.5 17-0ct-16 WHITE BASS FE-59 < 15.9 2016 Annual Radiological Environmental Operating Report Page C-62 Wolf Creek Generating Station

)

Exposure Pathway - Ingestion Fish Location: JRR Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 17-0ct-16 WHITE BASS C0-60 < 6.0 17-0ct-16 WHITE BASS ZN-65 < 25.3 17-0ct-16 WHITE BASS 1-131 < 57.7 17-0ct-16 WHITE BASS CS-134 < 13.4 17-0ct-16 WHITE BASS CS-137 < 12.7 17-0ct-16 WHITE BASS H-3 < 133.0 2016 Annual Radiological Environmental Operating Report Page C-63 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: A-3 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 10-May-16 HORSERADISH LEAVES BE-7 368.3 +/- 159.9 10-May-16 HORSERADISH LEAVES K-40 3,723.0 +/- 430.3 10-May-16 HORSERADISH LEAVES MN:-54 < 16.9 10-May-16 HORSERADISH LEAVES C0-58 < 13.1 10-May-16 HORSERADISH LEAVES FE-59 < 31.7 10-May-16 HORSERADISH LEAVES C0-60 < 10.6 10-May-16 HORSERADISH LEAVES ZN-65 < 22.1 10-May-16 HORSERADISH LEAVES ZR-NB-95 < 17.1 10-May-16 HORSERADISH LEAVES 1-131 < 17.9 10-May-16 HORSERADISH LEAVES CS-134 < 16.1 10-May-16 HORSERADISH LEAVES CS-137 < 13.9 14.:.Jun-16 HORSERADISH LEAVES BE-7 953.8 +/- 145.5 14-Jun-16 HORSERADISH LEAVES K-40 5,899.3 +/- 348.6 14-'JUn-16 HORSERADISH LEAVES MN-54 < 10.9 14-Jun-16 HORSERADISH LEAVES C0-58 < 12.2 14-Jun-16 HORSERADISH LEAVES FE-59 < 17.7 14-Jun-16 HORSERADISH LEAVES C0-60 < 10.1 14-Jun-16 HORSERADISH LEAVES ZN-65 < 27.8 14-Jun-16 HORSERADISH LEAVES ZR-NB-95 < 11.1 14-Jun-16 HORSERADISH LEAVES 1-131 < 18.0 14-Jun-16 HORSERADISH LEAVES CS-134 < 11.4 14-Jun-16 HORSERADISH LEAVES CS-137 < 13.6 18-Jul-16 HORSERADISH LEAVES BE-7 2,093.4+/- 296.4 18-Jul-16 HORSERADISH LEAVES K-40. 7, 138.3 +/- 552.2 18-Jul-16 HORSERADISH LEAVES MN-54 < 13.9 18-Jul-16 HORSERADISH LEAVES C0-58 < 14.5 18-Jul-16 HORSERADISH LEAVES FE-59 < 39.8 18-Jul-16 HORSERADISH LEAVES C0-60 < 15.9 18-Jul-16 HORSERADISH LEAVES ZN-65 < . 42.3 18-Jul-16 HORSERADISH LEAVES ZR-NB-95 < 21.7 18-Jul-16 HORSERADISH LEAVES 1-131 < 27.8 18-Jul-16 HORSERADISH LEAVES CS-134 < 15.8 18-Jul-16 HORSERADISH LEAVES CS-137 < 23.4 22-Aug-16 HORSERADISH LEAVES BE-7 861.4 +/- .125.8 22-Aug-16 HORSERADISH LEAVES K-40 6,279.3 +/- 232.8 22-Aug-16 HORSERADISH LEAVES MN-54 < 6.6 22-Aug-16 HORSERADISH LEAVES C0-58 < 9.2 22-Aug-16 HORSERADISH LEAVES FE-59 < 20.8 2016 Annual Radiological Environmental Operating Report Page C-64 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: A-3 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 22-Aug-16 HORSERADISH LEAVES C0-60 < 7.7 22-Aug-16 HORSERADISH LEAVES ZN-65 < 9.7 22-Aug-16 HORSERADISH LEAVES ZR-NB-95 < 11.6 22-Aug-16 HORSERADISH LEAVES 1-131 < 24.4 22-Aug-16 HORSERADISH LEAVES CS-134 < 8.6 22-~ug-16 HORSERADISH LEAVES CS-137 < 6.6 20-Sep-16 HORSERADISH LEAVES BE-7 709.0 +/- 200.7 20-Sep-16. HORSERAPISH LEAVES K-40 5,834.0+/- 465.8 20-Sep-16 HORSERADISH LEAVES '* MN-54 < 14.6 20-Sep-16 HORSERADISH LEAVES C0-58 < 13.6 20-Sep-16 HORSERADISH LEAVES FE-59 < 21.8 20-Sep-16 HORSERADISH LEAVES C0-60 < 15.2 20-Sep-16 HORSERADISH LEAVES ZN-65 < 26.5 20-Sep-16 HORSERADISH LEAVES ZR-NB-95 < 12.0 20-Sep-16 HORSERADISH LEAVES 1-131 < 47.9 20-Sep-16 HORSERADISH LEAVES CS-134 < 15.1 20-Sep-16 HORSERADISH LEAVES CS-137 < 17.0 24-0ct-16 HORSERADISH LEAVES BE-7 965.1 +/- 112.1 24-0ct-16 HORSERADISH LEAVES K-40 5,688.6 +/- 218.2 24-0ct-16 HORSERADISH LEAVES MN-54 < 7.1 '

24~0ct-16 HORSERADISH LEAVES C0-58 < 8.1 24-0ct-16 HORSERADISH LEAVES FE-59 < 18.7 24-0ct-16 HORSERADISH LEAVES C0-60 < 6.8 24-0ct-16 HORSERADISH LEAVES ZN-65 < 16.0 24-0ct-16 HORSERADISH LEAVES ZR-NB-95 < 6.2 24-0ct-16 HORSERADISH LEAVES 1-131 < 20.5 24-0ct-16 HORSERADISH LEAVES CS-134 < 7.4 24-0ct-16 HORSERADISH LEAVES CS-137 < 7.2 10-Nov-16 HORSERADISH LEAVES BE-7 943.6 +/- 221.8 10-Nov-16 HORSERADISH LEAVES K-40 5,785.5+/- 488.3 1O-Nov-16 HORSERADISH LEAVES MN-54 < 14.1 10-Nov-16 HORSERADISH LEAVES C0-58 < 14.9 10-Nov-16 HORSERADISH LEAVES FE-59 < 29.5 10-Nov-16 HORSERADISH LEAVES C0-60 < 9.4 10-Nov-16 HORSERADISH LEAVES ZN-65 < 29.2 10-Nov-16 HORSERADIS.H LEAVES ZR-NB-95 < 16.5 I

10-Nov-16 HORSERADISH LEAVES 1-131 < 36.1 10-Nov-16 HORSERADISH LEAVES CS-134 < .15.5 2016 Annual Radiological Environmental Operating Report Page C - 65 Wolf Creek Generating Station

Exposure Pathway ~ Ingestion Food/Garden Location: A-3 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 10-Nov-16 HORSERADISH LEAVES CS-137 < 11.6 r

2016 Annual Radiological Environmental Operating Report Page C-66 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: B-1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 10-May-16 HORSERADISH LEAVES BE-7 837.8 +/- 229.9 10-May-16 HORSERADISH LEAVES K-40 4,234;9.+/- 452.8 10-May-16 HORSERADISH LEAVES MN-54 < 17.6 10-May-16 HORSERADISH LEAVES C0-58 < 16.6 10-May-16 HORSERADISH LEAVES FE-59 < 28.8 10-May-16 HORSERADISH LEAVES C0-60 < 12.7 10-May-16 HORSERADISH LEAVES ZN-65 < 31.7 10-May-16 HORSERADISH LEAVES ZR-NB-95 < 10.1 10-May-16 HORSERADISH LEAVES 1-131 < 30.5 10-May-16 HORSERADISH LEAVES CS-134 < 15.5 10-May-16 HORSERADISH LEAVES CS-137 < 14.2 14-Jun-16 HORSERADISH LEAVES BE-7 874.9 +/- 215.3 .

14-Jun-16 HORSERADISH LEAVES K-40 5, 192.7+/- 469.7 14-Jun-16 HORSERADISH LEAVES MN-54 < 15.4 14-Jun-16 HORSERADISH LEAVES C0-58 < 8.4 14-Jun-16 HORSERADISH LEAVES FE-59 < 23.8 14-Jun-16 HORSERADISH LEAVES C0-60 < 14.8 14-Jun-16 HORSERADISH LEAVES ZN-65 < 20.8 14-Jun-16 HORSERADISH LEAVES ZR-NB-95 < 15.9 14-Jun-16 HORSERADISH LEAVES 1-131 < 27.2 14-Jun-16 HORSERADISH LEAVES CS-134 < 15.0 14-Jun-16 HORSERADISH LEAVES CS-137 < 19.8 18-Jul-16 HORSERADISH LEAVES BE-7 1,974.0+/- 323.2 18-Jul-16 HORSERADISH LEAVES K-40. 6,454.4 +/- 568.8 18-Jul-16 HORSERADISH LEAVES MN-54 < 13.3 16-Jul-16 HORSERADISH LEAVES C0-58 < 16.3 18-Jul-16 HORSERADISH LEAVES FE-59 < 26.1 18-Jul-16 HORSERADISH LEAVES C0-60 < 11.7 18-Jul-16 HORSERADISH LEAVES ZN-65 < 34.3

18-Jul-16 HORSERADISH LEAVES ZR-NB-95 < 14.6 18-Jul-16 HORSERADISH LEAVES 1-131 < 45.2 18-Jul-16 HORSERADISH LEAVES CS-134 < 18.1 18-Jul-16 HORSERADISH LEAVES CS-137 < 11.8 22-Aug-16 HORSERADISH LEAVES BE-7. 727.9 +/- 165.5 22-Aug-16 HORSERADISH LEAVES K-40 5,664.3 +/- 231.7 22-Aug-16 HORSERADISH LEAVES MN-54 < 10.6 22-Aug-16 HORSERADISH LEAVES C0-58 < 9.4

. 22-Aug-16 HORSERADISH LEAVES FE-59 < 21.2 2016 Annual Radiological Environmental Operating Report Page C-67 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: B-1 Collection Sample Nuclide Concentration Duplicate Date Description (pCUKg Wet) Analysis 22-Aug-16 HORSERADISH LEAVES C0-60 < 10.6 22-Aug-16 HORSERADISH LEAVES ZN-65 < 14.3 22-Aug-16 HORSERADISH LEAVES ZR-NB-95 < 10.1 22-Aug-16 HORSERADISH LEAVES 1-131 < 23.1 22-Aug-16 HORSERADISH LEAVES CS-134 < 8.6 22-Aug-16 HORSERADISH LEAVES CS-137 < 6.3 20-Sep-16 HORSERADISH LEAVES BE-7 508.8+/- 153.6 20-Sep-16 HORSERADISH LEAVES K-40 4,117.9+/- 409.1 20-Sep-16 HORSERADISH LEAVES MN-54 < 10.0 20-Sep-16 HORSERADISH LEAVES C0-58 < 8.5 20-Sep-16 HORSERADISH LEAVES FE-59 < 19.2 20-Sep-16 HORSERADISH LEAVES C0-60 < 11.8 20-Sep-16 HORSERADISH LEAVES ZN-65 < 16.3 20-Sep-16 HORSERADISH LEAVES ZR-NB-95 < 16.3 20-Sep-16 HORSERADISH LEAVES 1-131 < 19.3 20-Sep-16 HORSERADISH LEAVES CS-134 < 12.6 20-Sep-16 HORSERADISH LEAVES CS-137 < 13.4 24-0ct-16 HORSERADISH LEAVES BE-7 772.4 +/- 101.9 24-0ct-16 HORSERADISH LEAVES K-40 5,317.0 +/- 193.8 24-0ct-16 HORSERADISH LEAVES MN-54 < 6.9 24-0ct-16 HORSERADISH LEAVES C0-58 < 7.6 24-0ct-16 HORSERADISH LEAVES FE-59 < 10.1 24-0ct-16 HORSERADISH LEAVES C0-60 < 8.6 24-0ct-16 HORSERADISH LEAVES ZN-65 < 18.2 24-0ct-16 HORSERADISH LEAVES ZR-NB-95 < 9.2 24-0ct-16 HORSERADISH LEAVES 1-131 < 21.4 24-0ct-16 HORSERADISH LEAVES CS-134 < 7.4 24-0ct-16 HORSERADISH LEAVES CS-137 < 8.4 10-Nov-16 HORSERADISH LEAVES BE-7 677.7 +/- 155.1 10-Nov-16 HORSERADISH LEAVES K-40 5,359.5+/- 415.1 10-Nov-16 HORSERADISH LEAVES MN-54 < 14.4 10-Nov-16 HORSERADISH LEAVES C0-58 < 7.6 10-Nov-16 HORSERADISH LEAVES FE-59 < 19.8 1O-Nov-16 HORSERADISH LEAVES .C0-60 < 10.5 10-Nov-16 HORSERADISH LEAVES ZN-65 < 31.0 10-Nov-16 HORSERADISH LEAVES ZR-NB-95 < 9.6 1O-Nov-16 HORSERADISH LEAVES 1-131 < 42.2 10-Nov-16 HORSERADISH LEAVES CS-134 < 13.0 2016 Annual Radiological Environmental Operating Report Page C- 68 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: B-1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 10-Nov-16 HORSERADISH LEAVES CS-137 < 16.8 2016 Annual Radiological Environmental Operating Report Page C-69 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: D-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 10-May-16 HORSERADISH LEAVES BE-7 1,210.7+/- 201.2 10-May-16 HORSERADISH LEAVES K-40 4,596.9 +/- 423.7 10-May-16 HORSERADISH LEAVES MN-54 < 12.4 10-May-16 HORSERADISH LEAVES C0-58 < 14.8 10-May-16 HORSERADISH LEAVES FE-59 < 14.6 10-May-16 HORSERADISH LEAVES C0-60 < 9.0 10-May-16 HORSERADISH LEAVES ZN-65 < 20.7 10-May-16 HORSERADISH LEAVES ZR-NB-95 < 16.3 10-May-16 HORSERADISH LEAVES 1-131 < 21.1 10-May-16 HORSERADISH LEAVES CS-134 < 15.1 10-May-16 HORSERADISH LEAVES CS-137 < 10.8 14-Jun-16 HORSERADISH LEAVES BE-7 554.7 +/- 131.0 14-Jun-16 HORSERADISH LEAVES K-40 6,305.4+/- 330.1 14-Jun-16 HORSERADISH LEAVES MN-54 < 8.4 14-Jun-16 HORSERADISH LEAVES C0-58 < 9.6 14-Jun-16 HORSERADISH LEAVES FE-59 < 21.0 14-Jun-16 HORSERADISH LEAVES C0-60 < 10.2 14-Jun-16 HORSERADISH LEAVES ZN-65 < 23.9 14-Jun-16 HORSERADISH LEAVES ZR-NB-95 < 7.5 14-Jun-16 HORSERADISH LEAVES 1-131 < 23.6 14-Jun-16 HORSERADISH LEAVES CS-134 < 10.7 14-Jun-16 HORSERADISH LEAVES CS-137 < 11.7 18-Jul-16 HORSERADISH LEAVES BE-7 1,879.5 +/- 227.4 18-Jul-16 HORSERADISH LEAVES K-40 7,484.2+/- 510.2 18-Jul-16 HORSERADISH LEAVES MN-54 < 12.0 18-Jul-16 HORSERADISH LEAVES C0-58 < 15.6 18-Jul-16 HORSERADISH LEAVES FE-59 < 27.6 18-Jul-16 HORSERADISH LEAVES C0-60 < 10.7 18-Jul-16 HORSERADISH LEAVES ZN-65 < 36.1 18-Jul-16 HORSERADISH LEAVES ZR-NB-95 < 15.8 18-Jul-16 HORSERADISH LEAVES 1-131 < 28.3 I

18-Jul-16 HORSERADISH LEAVES CS-134 < 13.4 18-Jul-16 HORSERADISH LEAVES. CS-137 < 14.8 22-Aug-16 HORSERADISH LEAVES BE-7 888.7 +/- 114.5 Duplicate 22-Aug-16 HORSERADISH LEAVES BE-7 912.4 +/- 87.0 22-Aug-16 HORSERADISH LEAVES K-40 7,601.5 +/- 234.7 Duplicate 22-Aug-16 HORSERADISH LEAVES K-40 7,479.1 +/- 255.2 22-Aug-16 HORSERADISH LEAVES MN-54 < 8.0 Duplicate 2016 Annual Radiological Environmental Operating Report Page C - 70 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: D-2 Collection Sample Nuclide . Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 22-Aug-16 HORSERADISH LEAVES MN-54 < 7.9 22-Aug-16 HORSERADISH LEAVES C0-58 < 7.3 22-Aug-16 HORSERADISH LEAVES C0-58 < 7.4 Duplicate 22-Aug-16 HORSERADISH LEAVES FE-59 < 15.9 Duplicate 22-Aug-16 HORSERADISH LEAVES FE-59 < 21.7 22-Aug-16 HORSERADISH LEAVES C0-60 < 6.8 22-Aug-16 HORSERADISH LEAVES C0-60 < 4.9 Duplicate 22-Aug-16 HORSERADISH LEAVES ZN-65 < 18.7 Duplicate 22-Aug-16 HORSERADISH LEAVES ZN-65 < 18.2 22-Aug-16 HORSERADISH LEAVES ZR-NB-95 < 11.4 Duplicate 22-Aug-16 HORSERADISH LEAVES ZR-NB-95 < 10.4 22-Aug-16 HORSERADISH LEAVES 1-131 < 44.5 Duplicate 22-Aug-16 HORSERADISH LEAVES 1-131 < 16.6 22-Aug-16 HORSERADISH LEAVES CS-134 < 7.0 22-Aug-16 HORSERADISH LEAVES CS-134 < 7.1 Duplicate 22-Aug-16 HORSERADISH LEAVES CS-137 < 7.7 Duplicate 22-Aug-16 HORSERADISH LEAVES CS-137 < 8.8 20-Sep-16 HORSERADISH LEAVES BE-7 787.8 +/- 240.8 20-Sep-16 HORSERADISH LEAVES K-40 5,545.5 +/- 523.3 20-Sep-16 HORSERADISH LEAVES MN-54 < 21.7 20-Sep-16 HORSERADISH LEAVES C0-58 < 12.3 20-Sep-16 HORSERADISH LEAVES FE-59 < 30.4 20-Sep-16 HORSERADISH LEAVES C0-60 < 17.0 20-Sep-16 HORSERADISH LEAVES ZN-65 < 41.3 20-Sep-16 HORSERADISH LEAVES ZR-NB-95 < 15.8 20-Sep-16 HORSERADISH LEAVES 1-131 < 42.4 20-Sep-16 HORSERADISH LEAVES CS-134 < 20.2 20-Sep-16 HORSERADISH LEAVES CS-137 < 21.9 24-0ct-16 HORSERADISH LEAVES BE-7 1, 154.3 +/- 109.5 24-0ct-16 HORSERADISH LEAVES K-40 6,309.8 +/- 218.1 24-0ct-16 HORSERADISH LEAVES MN-54 < 7.3 24-0ct-16 HORSERADISH LEAVES C0-58 < 7.7 24-0ct-16 HORSERADISH LEAVES FE-59 < 16.1 24-0ct-16 HORSERADISH LEAVES C0-60 < 6.2 24-0ct-16 HORSERADISH LEAVES ZN-65 < 20.0 24-0ct-16 HORSERADISH LEAVES ZR-NB-95 < 9.6 24-0ct-16 HORSERADISH LEAVES 1-131 < 25.3 24-0ct-16 HORSERADISH LEAVES CS-134 < 8.0 2016 Annual Radiological Environmental Operating Report Page C-71 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: D-2 Collection Sample Nuclide Concentration Duplicate*

Date Description (pCi/Kg Wet) Analysis 24-0ct-16 HORSERADISH LEAVES CS-137 < 9.0 10-Nov-16 HORSERADISH LEAVES BE-7 921.5 +/- 192.8 10-Nov-16 HORSERADISH LEAVES K-40 6,365.6 +/- 424.9 10-Nov-16 HORSERADISH LEAVES MN-54 < 11.6 10-Nov-16 HORSERADISH LEAVES C0-58 < 11.9 10-Nov-16 HORSERADISH LEAVES FE-59 < 19.6 1O-Nov-16 HORSERADISH LEAVES C0-60 < 13.0 10-Nov-16 HORSERADISH LEAVES ZN-65 < 21.8 10-Nov-16 HORSERADISH LEAVES ZR-NB-95 < 8.0 10-Nov-16 HORSERADISH LEAVES 1-131 < 32.3 10-Nov-16 HORSERADISH LEAVES CS-134 < 11.6 10-Nov-16 HORSERADISH LEAVES CS-137 < 7.3 2016 Annual Radiological Environmental Operating Report Page C-72 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: H-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 10-May-16 HORSERADISH LEAVES BE-7 1, 130.2 +/- 202.5 10-May-16 HORSERADISH LEAVES K-40 4,680.9 +/- 421.1 10-May-16 HORSERADISH LEAVES MN-54 < 7.8 10-May-16 HORSERADISH LEAVES C0-58 < 9.1 10-May-16 HORSERADISH LEAVES FE-59 < 19.2 10-May-16 HORSERADISH LEAVES C0-60 < 5.7 10-May-16 HORSERADISH LEAVES ZN-65 < 25.1 10-May-16 HORSERADISH LEAVES ZR-NB-95 < 14.6 10-May-16 HORSERADISH LEAVES 1-131 < 30.4 10-May-16 HORSERADISH LEAVES CS-134 < 14.8 10-May-16 HORSERADISH LEAVES CS-137 < 13.0 14-Jun-16 HORSERADISH LEAVES BE-7 819.9+/- 139.9 14-Jun-16 HORSERADISH LEAVES K-40 5, 142.5 +/- 308.9 14-Jun-16 HORSERADISH LEAVES MN-54 < 9.3 14-Jun-16 HORSERADISH LEAVES C0-58 < 7.7 14-Jun-16 HORSERADISH LEAVES FE-59 < 24.1 14-Jun-16 HORSERADISH LEAVES C0-60 < 9.6 14-Jun-16 HORSERADISH LEAVES ZN-65 < 11.7 14-Jun-16 HORSERADISH LEAVES ZR-NB-95 < 10.9 14-Jun-16 HORSERADISH LEAVES 1-131 < 11.7 14-Jun-16 HORSERADISH LEAVES CS-134 < 9.2 14-Jun-16 HORSERADISH LEAVES CS-137 < 12.0 18-Jul-16 HORSERADISH LEAVES BE-7 1,295.9 +/- 246.6 18-Jul-16 HORSERADISH LEAVES K-40 7,323.0 +/- 544.0 18-Jul-16 HORSERADISH LEAVES MN-54 < 17.2 18-Jul-16 HORSERADISH LEAVES C0-58 < 14.9 18-Jul-16 HORSERADISH LEAVES FE-59 < 29.6 18-Jul-16 HORSERADISH LEAVES C0-60 < 10.8 18-Jul-16 HORSERADISH LEAVES ZN-65 < 38.4 18-Jul-16 HORSERADISH LEAVES ZR-NB-95 < 17.9 18-Jul-16 HORSERADISH LEAVES 1-131 < 42.4 18-Jul-16 HORSERADISH LEAVES CS-134 < 14.7 18-Jul-16 HORSERADISH LEAVES CS-137 < 14.3 22-Aug-16 HORSERADISH LEAVES BE-7 638.0 +/- 111.3 22-Aug-16 HORSERADISH LEAVES K-40 7,043.6 +/- 254.8 22-Aug-16 HORSERADISH LEAVES MN-54 < 8.6 22-Aug-16 HORSERADISH LEAVES C0-58 < 5.5 22-Aug-16 HORSERADISH LEAVES FE-59 < 22.3 2016 Annual Radiological Environmental Operating Report Page C-73 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: H-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 22-Aug-16 HORSERADISH LEAVES C0-60 < 8.0 22-Aug-16 HORSERADISH LEAVES ZN-65 < 10.2 22-Aug-16 HORSERADISH LEAVES ZR-NB-95 < 9.7 22-Aug-16 HORSERADISH LEAVES 1-131 < 15.3 22-Aug-16 HORSERADISH LEAVES CS-134 < 8.5 22-Aug-16 HORSERADISH LEAVES CS-137 < 8.6 20-Sep-16 HORSERADISH LEAVES BE-7 576.4+/- 146.2 20-Sep-16 HORSERADISH LEAVES K-40 6,516.5+/- 463.1 20-Sep-16 HORSERADISH LEAVES MN-54 < 15.6 20-Sep-16 HORSERADISH LEAVES C0-58 < 13.1 20-Sep-16 HORSERADISH LEAVES FE-59 < 21.5 20-Sep-16 HORSERADISH LEAVES C0-60 < 12.9 20-Sep-16 HORSERADISH LEAVES ZN-65 < 30.4 20-Sep-16 HORSERADISH LEAVES ZR-NB-95 < 14.1 20-Sep-16

HORSERADISH LEAVES 1-131 < 32.4 20-Sep-16 HORSERADISH LEAVES CS-134 < 14.0 20-~ep-16 HORSERADISH LEAVES CS-137 < 9.8 24-0ct-16 HORSERADISH LEAVES BE-7 480.8 +/- 100.2 24-0ct-16 HORSERADISH LEAVES K-40 6,435.7+/- 228.2 24-0ct-16 HORSERADISH LEAVES MN-54 < 8.2 24-0ct-16 HORSERADISH LEAVES C0-58 < 4.7 24-0ct-16 HORSERADISH LEAVES FE-59 < 18.9 24-0ct-16 HORSERADISH LEAVES C0-60 < 6.1 24-0ct-16 HORSERADISH LEAVES ZN-65 < 9.0 24-0ct-16 HORSERADISH LEAVES ZR-NB-95 < 10.2 24-0ct-16 HORSERADISH LEAVES 1-131 < 16.6 24-0ct-16 HORSERADISH LEAVES CS-134 < 7.1 24-0ct-16 HORSERADISH LEAVES CS-137 < 4.4 10-Nov-16 HORSERADISH LEAVES BE-7 943.4+/- 200.8 10-Nov-16 HORSERADISH LEAVES K-40 6,935.8+/- 467.3 10-Nov-16 HORSERADISH LEAVES MN-54 < 13.6 10-Nov-16 HORSERADISH LEAVES C0-58 < 11.0 1O-Nov-16 HORSERADISH LEAVES FE-59 < 19.3 10-Nov-16 HORSERADISH LEAVES C0-60 < 12.2 10-Nov-16 HORSERADISH LEAVES ZN-65 < 27.3 1O-Nov-16 HORSERADISH LEAVES* ZR-NB-95 < 8.3 10-Nov-16 HORSERADISH LEAVES 1-131 < 35.7 10-Nov-16 HORSERADISH LEAVES CS-134 < 13.3 2016 Annual Radiological Environmental Operating Report Page C-74 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Garden Location: H-2 Collection Sample Nuclide Concentration Duplicate Date Description {pCi/Kg Wet) Analysis 10-Nov-16 HORSERADISH LEAVES CS-137 < 14.6

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2016 Annual Radiological Environmental Operating Report Page C- 75 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Crops Location: NR-D1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 19-0ct-16 IRRIGATED SOYBEANS BE-7 < 127.3 19-0ct-16 IRRIGATED SOYBEANS K-40 . 15,833.0 +/- 545.0 1'9-0ct-16 IRRIGATED SOYBEANS MN-54 < 12.8 19-0ct-16 IRRIGATED SOYBEANS C0-58 < 15.7 19-0ct-16 IRRIGATED SOYBEANS FE-59 < 40.5 19-0ct-16 IRRIGATED SOYBEANS C0-60 < 6.8 19-0ct-16 IRRIGATED SOYBEANS zN-65. < 27.4 19-0ct-16 IRRIGATED SOYBEANS ZR-NB-95 < 15.2 19-0ct-16 IRRIGATED SOYBEANS 1-131 < 41.3 19-0ct-16 IRRIGATED SOYBEANS CS-134 < 11.6 19-0ct-16 IRRIGATED SOYBEANS CS-137 < 10.6 2016 Annual Radiological Environmental Operating Report Page C-76 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Crops Location: NR-D2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 10-0ct-16 IRRIGATED CORN BE-7 < 73.7 10-0ct-16 IRRIGATED CORN K-40 . 3,077.8 +/- 270.7 10-0ct-16 IRRIGATED CORN MN-54 < 7.3 10-0ct-16 IRRIGATED CORN C0-58 < 5.0 10-0ct-16 IRRIGATED CORN FE-59 < 24.8 10-0ct-16 IRRIGATED CORN C0-60 < 6.1 10-0ct-16 IRRIGATED CORN ZN-65 < 7.9 10-0ct-16 IRRIGATED CORN ZR-NB-95 < 8.7 10-0ct-16 IRRIGATED CORN 1-131 < 31.5 10-0ct-16 IRRIGATED CORN CS-134 < 7.7 10-0ct-16 IRRIGATED CORN CS-137 < 9.6 2016 Annual Radiological Environmental Operating Report Page C- 77 Wolf Creek Generating Station

Exposure Pathway - Ingestion Food/Crops Location: NR-U1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 12-0ct-16 IRRIGATED CORN BE-7 < 56.4 12-0ct-16 IRRIGATED CORN BE-7 < 81.7 Duplicate 12-0ct-16 IRRIGATED CORN K-40 2,796.9+/- 239.6 12-0ct-16 IRRIGATED CORN K-40 2,612.0 +/- 211.2 Duplicate 12-0ct-16 IRRIGATED CORN MN-54 < 7.8 Duplicate 12-0ct-16 IRRIGATED CORN MN-54 < 3.7 12-0ct-16 IRRIGATED CORN C0-58 < 9.1 Duplicate 12-0ct-16 IRRIGATED CORN C0-58 < 4.5 12-0ct-16 IRRIGATED CORN FE-59 < 16.0 Duplicate 12-0ct-16 IRRIGATED CORN FE-59 < 11.1 12-0ct-16 IRRIGATED CORN C0-60 < 6.0 12-0ct-16 IRRIGATED CORN C0-60 < 6.2 Duplicate 12-0ct-16 IRRIGATED CORN ZN-65 < 11.7 Duplicate 12-0ct-16 IRRIGATED CORN ZN-65 < 14.1 12-0ct-16 IRRIGATED CORN ZR-NB-95 < 8.8 12-0ct-16 IRRIGATED CORN ZR-NB-95 < 8.8 Duplicate 12-0ct-16 IRRIGATED CORN 1-131 < 33.5 Duplicate 12-0ct-16 IRRIGATED CORN 1-131 < 20.4 12-0ct-16 IRRIGATED CORN CS-134 < 8.2 Duplicate 12-0ct-16 IRRIGATED CORN CS-134 < 7.0 12-0ct-16 IRRIGATED CORN CS-137 < 8.6 12-0ct-16 IRRIGATED CORN CS-137 < 5.7 Duplicate 19-0ct-16 IRRIGATED SOYBEANS BE-7 < 98.1 19-0ct-16 IRRIGATED SOYBEANS K-40 13,941.0+/- 505.5 19-0ct-16 IRRIGATED SOYBEANS MN-54 < 10.4 19-0ct-16 IRRIGATED SOYBEANS C0-58 < 11.6 19-0ct-16 IRRIGATED SOYBEANS FE-59 < 47.2 19-0ct-16 IRRIGATED SOYBEANS C0-60 < 6.7 19-0ct-16 IRRIGATED SOYBEANS ZN-65 < 14.8 19-0ct-16 IRRIGATED SOYBEANS ZR-NB-95 < 14.9 19-0ct-16 IRRIGATED SOYBEANS 1-131 < 43.3 19-0ct-16 IRRIGATED SOYBEANS CS-134 < 9.5 19-0ct-16 IRRIGATED SOYBEANS CS-137 < 11.5 2016 Annual Radiological Environmental Operating Report Page C-78 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: DC Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 27-Apr-16 BOTTOM SEDIMENT K-40 10, 166.0 +/- 1,016.0 27-Apr-16 BOTTOM SEDIMENT MN-54 < 47.9 27-Apr-16 BOTTOM SEDIMENT C0-58 < 54.7 27-Apr-16 BOTTOM SEDIMENT FE-59 < 143.9 27-Apr-16 BOTTOM SEDIMENT C0-60 < 33.4 27-Apr-16 BOTTOM SEDIMENT ZN-65 < 71.5 27-Apr-16 BOTTOM SEDIMENT CS-134 < 43.4 27-Apr-16 BOTTOM SEDIMENT CS-137 < 56.0 27-Apr-16 BOTTOM SEDIMENT FE-55 < 16,559.0 27-0ct-16 BOTTOM SEDIMENT K-40 12,748.0 +/- 1,022.0 27-0ct-16 BOTTOM SEDIMENT MN-54 < 44.5 27-0ct-16 BOTTOM SEDIMENT C0-58 < 52.0 27-0ct-16 BOTTOM SEDIMENT FE-59 < 83.7 27-0ct-16 BOTTOM SEDIMENT C0-60 < 36.4 27-0ct-16 BOTTOM SEDIMENT ZN-65 < 84.2 27-0ct-16 BOTTOM SEDIMENT CS-134 < 43.1 27-0ct-16 BOTTOM SEDIMENT CS-137 < 55.6 27-0ct-16 BOTTOM SEDIMENT FE-55 < 17,441.0 2016 Annual Radiological Environmental Operating Report Page C-79 Wolf Creek Generating Station

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Exposure Pathway - Aquatic Bottom Sediment Location: EEA Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 09-Jun-16 BOTTOM SEDIMENT K-40 11,443.0 +/- 674.8 09-Jun-16 BOTTOM SEDIMENT MN-54 < 27.0 09-Jun-16 BOTTOM SEDIMENT C0-58 < 20.4 09-Jun-16 BOTTOM SEDIMENT FE-59 < 91.9 09-Jun-16 BOTTOM SEDIMENT C0-60 < 19.7 09-Jun-16 BOTTOM SEDIMENT ZN-65 < 52.1 09-Jun-16 BOTTOM SEDIMENT CS-134 < 24.5 09-Jun-16 BOTTOM SEDIMENT CS-137 < 31.7 26-0ct-16 BOTTOM SEDIMENT K-40 12,714.0 +/- 751.3 26-0ct-16 BOTTOM SEDIMENT MN-54 < 28.2 26-0ct-16 BOTTOM SEDIMENT C0-58 < 27.7 26-0ct-16 BOTTOM SEDIMENT FE-59' < 90.6 26-0ct-16 BOTTOM SEDIMENT C0-60 < 24.9 26-0ct-16 BOTTOM SEDIMENT ZN-65 < 55.4 26-0ct-16 BOTTOM SEDIMENT CS-134 < 19.3 26-0ct-16 BOTTOM SEDIMENT CS-137 72.6 +/- 31.4 2016 Annual Radiological Environmental Operating Report Page C-80 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: ESW 2016-11 Collection Sample Nuclide Concentration - Duplicate Date Description .(pCi/Kg Dry) Analysis I

12-May-16 BOTTOM SEDIMENT K-40 5,343.8 +/- 631.9 12-May-16 BOTTOM SEDIMENT MN-54 < 39.0 12-May-16 BOTTOM SEDIMENT C0-58 < 52.4 12-May-16 BOTTOM SEDIMENT FE-59 < 114.1 12-May-16 BOTTOM SEDIMENT C0-60 < 19.5 12-May-16 BOTTOM SEDIMENT ZN-65 < 57.1 12-May-16 BOTTOM SEDIMENT CS-134 < 26.0 12-May-16 BOTTOM SEDIMENT CS-137 < 32.1 12-May-16 BOTTOM SEDIMENT FE-55 < 17,221.8 2016 Annual Radiological Environmental Operating Report Page C- 81 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: ESW 2016-12 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 27-0ct-16 BOTTOM SEDIMENT K-40 10,834.0 +/- 1,138.0 27-0ct-16 BOTTOM SEDIMENT MN-54 < 64.9 27-0ct-16 BOTTOM SEDIMENT C0-58 < 61.5 27-0ct-16 BOTTOM SEDIMENT FE-59 < 117.5 27-0ct-16 BOTTOM SEDIMENT C0-60 < 40.1 27-0ct-16 BOTTOM SEDIMENT ZN-65 < 100.3 27-0ct-16 BOTTOM SEDIMENT CS-134 < 43.7 27-0ct-16 BOTTOM SEDIMENT CS-137 < 47.8 27-0ct-16 BOTTOM SEDIMENT FE-55 < 17,659.1 2016 Annual Radiological Environmental Operating Report Page C- 82 Wolf Creek Generating Station

Exposure Pathway - Aqu~tic Bottom Sediment Location: JRR Collection Sample Nuclide Concentration Duplicate Date Description {pCi/Kg Dry) Analysis 25-Apr-16 BOTTOM SEDIMENT K-40. 14,722.0 +/- 1, 188.0 Duplicate 25-Apr-16 BOTTOM SEDIMENT K-40 14,399.0 +/- 1,502.0 25-Apr-16 BOTTOM SEDIMENT MN-54 < 47.9 Duplicate

25-Apr-16 BOTTOM SEDIMENT MN-54 < 83.8 25-Apr-16 BOTTOM SEDIMENT C0-58 < 69.5 25-Apr-16 BOTTOM SEDIMENT C0-58 < 63.9 Duplicate 25-Apr-16 BOTTOM SEDIMENT FE-59 < 196.5 25-Apr-16 BOTTOM SEDIMENT FE-59 < 172.0 Duplicate 25-Apr-16 BOTTOM SEDIMENT C0-60 < 62.1 25-Apr-16 BOTTOM SEDIMENT C0-60 < 43.3 Duplicate 25-Apr-16 BOTTOM SEDIMENT ZN-65 < 86.0 Duplicate 25-Apr-16 BOTTOM SEDIMENT ZN-65 < 148.5 25-Apr-16 BOTTOM SEDIMENT CS-134 < 39.2 Duplicate 25-Apr-16 BOTTOM SEDIMENT CS-134 < 75.2 25-Apr-16 BOTTOM SEDIMENT CS-137 < 55.9 Duplicate 25-Apr-16 BOTTOM SEDIMENT CS-137 < 77.9 27-0ct-16 BOTTOM SEDIMENT K-40 17,039.0 +/- 1,583.0 27-0ct-16 BOTTOM SEDIMENT K-40 18,299.0 +/- 1,417.0 Duplicate 27-0ct-16 BOTTOM SEDIMENT MN-54 < 52.0 Duplicate 27-0ct-16 BOTTOM SEDIMENT MN-54 < 70.0 27-0ct-16 BOTTOM SEDIMENT C0-58 < 73.5 27-0ct-16 BOTTOM SEDIMENT C0-58 < 63.2 Duplicate 27-0ct-16 BOTTOM SEDIMENT FE-59 < 208.6 Duplicate 27-0ct-16 BOTTOM SEDIMENT FE-59 < 139.2 27-0ct-16 BOTTOM SEDIMENT C0-60 < 29.5 27-0ct-16 BOTTOM SEDIMENT C0-60 < 50.0 Duplicate 27-0ct-16 BOTTOM SEDIMENT ZN-65 < 103.7 Duplicate 27-0ct-16 BOTTOM SEDIMENT ZN-65 < 113.6 27-0ct-16 BOTTOM SEDIMENT CS-134 < 58.1 Duplicate 27-0ct-16 BOTTOM SEDIMENT CS-134 < 49.4 27-0ct-16 BOTTOM SEDIMENT CS-137 138.0 +/- 77.6 27-0ct-16 BOTTOM SEDIMENT CS-137 128.0+/- 54.6 Duplicate 2016 Annual Radiological Environmental Operating Report Page C - 83 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: MUDS Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 09-Jun-16 BOTTOM SEDIMENT K-40 10,460.0 +/- 607.7 09-Jun-16 BOTTOM SEDIMENT MN-54 < 30.0 09-Jun-16 BOTTOM SEDIMENT C0-58 < 31.8 09-Jun-16 BOTTOM SEDIMENT FE-59 < 80.5 09-Jun-16 BOTTOM SEDIMENT C0-60 < 9.6 09-Jun-16 BOTTOM SEDIMENT ZN-65 < 45.3 09-Jun-16 BOTTOM SEDIMENT CS-134 < 16.9 09-Jun-16 BOTTOM SEDIMENT CS-137. < 25.3 2016 Annual Radiological Environmental Operating Report Page C-84 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: SC Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 17-Jun-16 BOTTOM SEDIMENT K-40 14,051.0 +/- 801.7 17-Jun-16 BOTTOM SEDIMENT MN-54 < 33.3 17-Jun-16 BOTTOM SEDIMENT C0-58 < 32.8 17-Jun-16 BOTTOM SEDIMENT FE-59 < 112.7 17-Jun-16 BOTTOM SEDIMENT C0-60 < 11.1 17-Jun-16 BOTTOM SEDIMENT ZN-65 < 55.9 17-Jun-16 BOTTOM SEDIMENT CS-134 < 24.1 17-Jun-16 BOTTOM SEDIMENT CS-137 < 27.5 2016 Annual Radiological Environmental Operating Report Page C-85 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: UHS 2016-41 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 12-May-16 BOTTOM SEDIMENT K-40 10,207.0 +/- 914.7 12-May-16 BOTTOM SEDIMENT MN-54 <* 41.0 12-May-16 BOTTOM SEDIMENT C0-58 < 43.3 12-May-16 BOTTOM SEDIMENT FE-59 < 122.2 12-May-16 BOTTOM SEDIMENT C0-60 < 18.5 12-May-16 BOTTOM SEDIMENT ZN-65 < 61.0 12-May-16 BOTTOM SEDIMENT CS-134 < 36.6 12-May-16 BOTTOM SEDIMENT CS-137 < 49.4 12-May-16 BOTTOM SEDIMENT FE-55 < 16,826.1 2016 Annual Radiological Environmental Operating Report Page C-86 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: UHS 2016-42 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 12-May-16 BOTTOM SEDIMENT K-40 12,485.0 +/- 1,106.0 12-May-16 BOTTOM SEDIMENT MN-54 < 54.5 12-May-16 BOTTOM SEDIMENT C0-58 < 64.0 12-May-16 BOTTOM SEDIMENT FE-59 < 100.9 12-May-16 BOTTOM SEDIMENT C0-60 < 44.3 12-May-16 BOTTOM SEDIMENT ZN-65 < 101.9 12-Mc;iy-16 BOTTOM SEDIMENT CS-134 < 33.7 12-May-16 BOTTOM SEDIMENT CS-137 85.7 +/- 48.8 12-May-*16 BOTTOM SEDIMENT SR-90 55.5 +/- 19.7 12-May-16 BOTTOM SEDIMENT SR-89 < 80.6 12-May-16 BOTTOM SEDIMENT Nl-63 < 437.5 12-May-16 BOTTOM SEDIMENT FE-55 < 17,141.8

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2016 Annual Radiological Environmental Operating Report Page C-87 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: UHS 2016-43 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 12-May-16 BOTTOM SEDIMENT K-40 9,073.9+/- 794.7 12-May-16 BOTTOM SEDIMENT MN-54 < 34.8 12-May-16 BOTTOM SEDIMENT C0-58 < 50.2 12-May-16 BOTTOM SEDIMENT FE-59 < 89.6 12-May-16 BOTTOM SEDIMENT C0-60 < 29.9 12-May-16 BOTTOM SEDIMENT ZN-65 < 90.8 12-May-16 BOTTOM SEDIMENT CS-134 < 28.6 12-May-16 BOTTOM SEDIMENT CS-137 < 42.3 12-May-16 BOTTOM SEDIMENT FE-55 < 16,581.7 2016 Annual Radiological Environmental Operating Report Page C - 88 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment

Location: UHS 2016-44 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 12-May-16 BOTTOM SEDIMENT K-40 9,561.0 +/- 923.6 12-May-16 BOTTOM SEDIMENT MN-54 < 43.2 12-May-16 BOTTOM SEDIMENT C0-58 < 47.8 12-May-16 BOTTOM SEDIMENT FE-59 < 90.2 12-May-16 BOTTOM SEDIMENT C0-60 < 40.0 12-May-16 BOTTOM SEDIMENT ZN-65 < 83.3 12-May-16 BOTTOM SEDIMENT CS-134 < 29.2 12-May-16 BOTTOM SEDIMENT CS-137 < 47.1 12-May-16 BOTTOM SEDIMENT FE-55 < 16,558.0 i

I .

2016 Annual Radiological Environmental Operating Report Page C - 89 Wolf Creek Generating Station

Exposure Pathway-Aquatic Bottom Sediment Location: UHS 2016-45 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 27-0ct-16 BOTTOM SEDIMENT K-40 13,031.0 +/- 1,359.0 27-0ct-16 BOTTOM SEDIMENT MN-54 < 62.5 27-0ct-16 BOTTOM SEDIMENT C0-58 < 71.0 27.:.0ct-16 BOTTOM SEDIMENT FE-59 < 155.7 27-0ct-16 BOTTOM SEDIMENT C0-60 < 43.4 27-0ct-16 BOTTOM SEDIMENT ZN-65 < 143.6 27-0ct-16 BOTTOM SEDIMENT CS-134 < 45.9 27-0ct-16 BOTTOM SEDIMENT CS-137 < 66.6 27-0ct-16 BOTTOM SEDIMENT FE-55 < 17,653.9 27-0ct-16 BOTTOM SEDIMENT SR-89 < 244.6 27-0ct-16 BOTTOM SEDIMENT Nl-63 < 401.2 27-0ct-16 BOTTOM SEDIMENT SR-90 < 76.2 2016 Annual Radiological Environmental Operating Report Page C-90 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: UHS 2016-46 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 27-0ct-16 BOTTOM SEDIMENT K-40 9, 133.3+/- 863.5 27-0ct-16 BOTTOM SEDIMENT MN-54 < 37:3 27-0ct-16 BOTTOM SEDIMENT C0-58 < 49.0 27-0ct-16 BOTTOM SEDIMENT FE-59 < 105.5 27-0ct-16 BOTTOM SEDIMENT C0-60 < 27.5 27-0ct-16 BOTTOM SEDIMENT ZN-65 < 73.9 27-0ct-16 BOTTOM SEDIMENT CS-134 < 34.1 27-0ct-16 BOTTOM SEDIMENT CS-137 < 39.5 27-0ct-16 BOTTOM SEDIMENT FE-55 < 16,432.3 2016 Annual Radiological Environmental Operating Report Page C-91 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: UHS 2016-47 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 27-0ct-16 BOTTOM SEDIMENT K-40 10,569.0 +/- 1, 144.0 27-0ct-16 BOTTOM SEDIMENT MN-54 < 54.6 27-0ct-16 BOTTOM SEDIMENT C0-58 < 79.2 27-0ct-16 BOTTOM SEDIMENT FE-59 < 174.2 27-0ct-16 BOTTOM SEDIMENT C0-60 < 41.4

27-0ct-16 BOTTOM SEDIMENT ZN-65 < 122.0 27-0ct-16 BOTTOM SEDIMENT ' .

CS-134 < 48.8 27-0ct-16 BOTTOM SEDIMENT CS-137 < 57.4 27-0ct-16 BOTTOM SEDIMENT FE-55 < 17,062.8 2016 Annual Radiological Environmental Operating Report Page C - 92 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: UHS 2016-48 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 27-0ct-16 BOTTOM SEDIMENT K-40 11,599.0 +/- 1,329.0 27-0ct-16 BOTTOM SEDIMENT MN-54 < 51.7 27-0ct-16 BOTTOM SEDIMENT C0-58 < 59.7 27-0ct-16 BOTTOM SEDIMENT FE-59 < 188.5 27-0ct-16 BOTTOM SEDIMENT C0-60 < 44.2 27-0ct-16 BOTTOM SEDIMENT ZN-65 < 136.9 27-0ct-16 BOTTOM SEDIMENT CS-134 < 55.7 27-0ct-16 BOTTOM SEDIMENT CS-137 < 59.6 27-0ct-16 BOTTOM SEDIMENT FE-55 < 17,773.8 I

2016 Annual Radiological Environmental Operating Report Page C-93 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: UHS HS-11 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 12-May-16 BOTTOM SEDIMENT K-40 10,267.0 +/- 755.3 Duplicate 12-May-16 BOTTOM SEDIMENT K-40 9,959.7 +/- 911.7 12-May-16 BOTTOM SEDIMENT MN-54 < 40.4 Duplicate 12-May-16 BOTTOM SEDIMENT MN-54 < 44.9 12-May-16 BOTTOM SEDIMENT C0-58 < 36.2 Duplicate 12-May-16 BOTTOM SEDIMENT C0-58 < 53.2 12-May-16 BOTTOM SEDIMENT FE-59 < 73.3 Duplicate 12-May-16 BOTTOM SEDIMENT FE-59 < 48.4 12-May-16 BOTTOM SEDIMENT C0-60 < 31.6 Duplicate 12-May-16 BOTTOM SEDIMENT co-so* < 16.6 12-May-16 BOTTOM SEDIMENT ZN-65 < 72.6 Duplicate*

12-May-16 BOTTOM SEDIMENT ZN-65 < 74.3 12-May-16 BOTTOM SEDIMENT CS-134 < 25.9 Duplicate 12-May-16 BOTTOM SEDIMENT CS-134 < 34.7 12-May-16 BOTTOM SEDIMENT CS-137 < 38.5 Duplicate 12-May-16 BOTTOM SEDIMENT CS-137 < 37.2 12-May-16 BOTTOM SEDIMENT FE-55 < 17,113.1 Duplicate 12-May-16 BOTTOM SEDIMENT FE-55 < 16,834.2 2016 Annual Radiological Environmental Operating Report Page C - 94 Wolf Creek Generating Station

Exposure Pathway - Aquatic Bottom Sediment Location: UHS HS-12 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 27-0ct-16 BOTTOM SEDIMENT K-40 12,998.0 +/- 1,077.0 27-0ct-16 BOTTOM SEDIMENT MN-54 < 56.2 27-0ct-16 BOTTOM SEDIMENT C0-58 < 67.4 27-0ct-16 BOTTOM SEDIMENT FE-59 < 111.0 27-0ct-16 BOTTOM SEDIMENT C0-60 < 25.0 27-0ct-16 BOTTOM SEDIMENT ZN-65 < 87.9 27-0ct-16 BOTTOM SEDIMENT CS-134 * < 34.7 27-0ct-1.6 BOTTOM SEDIMENT CS-137 < 59.6 27-0ct-16 BOTTOM SEDIMENT FE-55 < 17,184.8 2016 Annual Radiological Environmental Operating Report Page C-95 Wolf Creek Generating Station

Exposure Pathway - Aquatic Vegetation Location: EEA Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 17-Jun-16 CATTAILS BE-7 452.5+/- 61.9 17-Jun-16 CATTAILS K:..40 2,253.3 +/-. 112.1 17-Jun-16 CATTAILS MN-54 < 3.7 17-Jun-16 CATTAILS C0-58 < 3.3 17-Jun-16 CATTAILS FE-59 < 12.6 17-Jun-16 CATTAILS C0-60 < 4.1 17-Jun-16 CATTAILS ZN-65 < 10.7 17-Jun-16 CATTAILS ZR-NB-95 < 6.5 17-Jun-16 CATTAILS 1-131 < 13.6 17-Jun-16 CATTAILS CS-134 < 4.5 17-Jun-16 CATTAILS CS-137 < 4.4 01-Aug-16 WATER PRIMROSE BE-7 589.1 +/- 182.7 01-Aug-16 WATER PRIMROSE K-40 3, 155.9 +/- 370.2 01-Aug-16 WATER PRIMROSE MN-54 < 6.4 01-Aug-16 WATER PRIMROSE C0-58 < 6.9 01-Aug-16 WATER PRIMROSE FE-59 < 20.7 01-Aug-16 WATER PRIMROSE C0-60 < 8.6 01-Aug-16 WATER PRIMROSE ZN-65 < 36.1 01lAug-16 WATER PRIMROSE ZR-NB-95 < 14.6 01-Aug-16 WATER PRIMROSE 1-131 < 25.4 01-Aug-16 WATER PRIMROSE CS-134 < 14.9 01-Aug-16 WATER PRIMROSE cs.:137 < 16.5 2016 Annual Radiological Environmental Operating Report Page C-96 Wolf Creek.Generating Station

Exposure Pathway - Aquatic Vegetation Location: MUDS Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 25-Jul-16 AMERICAN PONDWEED BE.,7 705.3 +/- 148.8 25-Jul-16 AMERICAN PONDWEED K-40 2,274.5 +/- 273.7 25-Jul-16 AMERICAN PONDWEED MN-54 < 8.9 25-Jul-16 AMERICAN PONDWEED C0-58 < 6.8 25-Jul-16 AMERICAN PONDWEED FE-59 < 14.4 25-Jul-16 AMERICAN PONDWEED C0-60 < 7.7 25-Jul-16 AMERICAN PONDWEED ZN-65 < 23.2 25-Jul-16 AMERICAN PONDWEED ZR-NB-95 < 7.8 25-Jul-16 AMERICAN PONDWEED 1-131 < 30.9 25-Jul-16 AMERICAN PONDWEED CS-134 < 12.5

/

25-Jul-16 AMERICAN PONDWEED CS-137 < 11.2 2016 Annual Radiological Environmental Operating Report Page C- 97 Wolf Creek Generating Station

Exposure Pathway - Terrestrial

. Vegetation Location: EEA Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 17-Jun-16 PASTURAGE BE-7 2,233.4 +/- 122.5 17-Jun-16 PASTURAGE BE-7 2,236.5+/- 116.4 Duplicate 17-Jun-16 PASTURAGE K-40 7,569.4 +/- 254.4, 17-Jun-16 PASTURAGE K-40 7,087.7 +/- 226.5 Duplicate 17-Jun-16 PASTURAGE MN-54 < 7.4 Duplicate 17-Jun-16 PASTURAGE MN-54 < 7.2 17-Jun-16 PASTURAGE C0-58 < 8.7 Duplicate 17-Jun-16 PASTURAGE C0-58 < 6.4 17-Jun-16 PASTURAGE FE-59 < 15.9 I 17-Jun-16 PASTURAGE FE-59 < . 17.1 Duplicate 17-Jun-16 PASTURAGE C0-60 < 8.2 17-Jun-16 PASTURAGE C0-60 < 7.1 Duplicate 17-Jun-16 PASTURAGE ZN-65 < 14.8 17-Jun-16 PASTURAGE ZN-65 < 15.7 Duplicate 17-Jun-16 PASTURAGE ZR-NB-95 < 6.6 17-Jun-16 PASTURAGE ZR-NB-95 < 10.5 Duplicate 17-Jun-16 PASTURAGE 1-131 < 23.8 17-Jun-16 PASTURAGE 1-131 < 24.9 Duplicate 17-Jun-16 PASTURAGE CS-134 < 6.6 17-Jun-16 PASTURAGE CS-134 < 7.1 Duplicate 17-Jun-16 PASTURAGE CS-137 < 6.4 Duplicate 17-Jun-16 PASTURAGE CS-137 < 9.0 2016 Annual Radiological Environmental Operating Report Page C-98 Wolf Creek Generating Station

Exposure Pathway - Terrestrial Soil Location: EEA Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Dry) Analysis 01-Jun-16 SOIL K-40 10, 764. 0 +/- 652.5 01-Jun-16 SOIL MN-54 < 27.3 01-Jun-16 SOIL C0-58 < 31.0 01-Jun-16 SOIL FE-59 < 37.8 01-Jun-16 SOIL C0-60 < 13.2 01-Jun-16 SOIL ZN-65 < 57.0 01-Jun-16 SOIL CS-134 < 20.3 01-Jun-16 SOIL CS-137 99.5 +/- 26.8 2016 Annual Radiological Environmental Operating Report Page C- 99 Wolf Creek Generating Station

Exposure Pathway - Ingestion Meat Location: R2.0 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 31-0ct-16 DEER K-40 3,336.7 +/- 440.3 31-0ct-16 DEER MN-54 < 17.5 31-0ct-16 DEER C0-58 < 7.2 31-0ct-16 DEER FE-59 < 37.7 31-0ct-16 DEER C0-60 < 18.1 31-0ct-16 DEER ZN-65 < 28.8 31-0ct-16 DEER CS-134 < 15.3 31-0ct-16 DEER CS-137 < 14.2 31-0ct-16 DEER H-3 169.0 +/- 66.0 2016 Annual Radiological Environmental Operating Report Page C -100 Wolf Creek Generating Station

APPENDIX D LAND USE CENSUS REPORT 2016 Annual Radiological Environ.mental Operating Report Wolf Creek Generating Station

WOLF CREEK GENERATING STATION 2016 LAND USE CENSUS REPORT REVISION 1 I Prepared by:

~~~?~ 12-15-16 Teresa L. Rice Date Peer Review: '

~

-r: ~

1-18-17 Craig T. Adkinson Date Approved by:

r JI ~

James K. Rudeen 1-18-17 Date 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 1

EXECUTIVE

SUMMARY

The 2016 Land Use Census Report has been revised to incorporate the re-calculated D/Qs for the broadleaf vegetation locations using the data from Engineering Evaluation SA-16-004, Relative Deposition per Unit Area (D/Q) 3 Year Update (2013 - 2015).

The annual Land Use Census of rural residents within five miles of the Wolf Creek Generating Station (WCGS) has been completed in 2016 in accordance with AP 078-004, [Offsite Dose Calculation Manual (Radiological Environmental Monitoring Program)].

No program changes are necessary regarding milk locations. Again, no milk sampling locations were identified.

The two broad leaf vegetation locations with the highest calculated annual average D/Q rankings are A2.60-17TE1527 and Q2.35-MILA1619. Since these gardens are currently listed as sample locations for the Radiological Environmental Monitoring Program in procedure AP 078-004 (locations A-3 and Q-6), no program changes are necessary regarding broadleaf vegetation locations.

BACKGROUND Section 5.2, Attachment A, of procedure AP 078-004, directs that "a Land Use Census shall be conducted annually during the growing season to identify the nearest (1) milk animal, (2) residence, and (3) garden of greater than 500 square feet producing broadleaf vegetation in each of the 16 meteorological sections within five miles of the WCGS site."

Table 5-1, Attachment A, of procedure AP 078-004, requires that broadleaf vegetation samples be collected from "two indicator locations (using the criteria from the "Land Use Census" section) with highest calculated annual average D/Q."

Table 5-1, Attachment A, of procedure AP 078-004, also requires that milk samples be collected from "three indicator locations within 5 miles of the site having the highest dose potential."

METHODOLOGY Over two hundred surveys were mailed to the rural residents living within five miles of WCGS.

The survey excluded the residents of New Strawn and Burlington. These locations were excluded due to the large number of households and the low likelihood that information gained from these residences *would affect the locations chosen for REMP sampling. *Drive-by information was collected for the nearest residences in each sector that did not return surveys.

The information collected was compiled and the results are identified in Tables 1-3.

Calculations were performed so that garden locations could be ranked by their respective D/Q.

These results are contained in Table 4.

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D-2

RESULTS One change was identified for the nearest occupied residence in each sector. Eight changes were noted for the nearest garden producing broadleaf vegetation. There were no changes regarding milk sample locations. Again, no locations were identified that routinely milked animals for human consumption.

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 3

TABLE 1 2016 Land Use Census Data Location of Nearest:

Sector Residence Milking Animals Broadleaf Garden A A2.47-17RD1474 None A2.60-17TE1527 B 83.53-QURD1755 None 84.12-QURD1823 c C1 .92-16RD1703 None C4.89-18RD1859 D 02.03-QULA 1571 None D3.00-16RD1829 E E1 .78-QULA1451 None None F F1 .84-QULA1419 None F2.44-RERD1391 G G3.03-13RD1820 None G3.60-RERD1198 H H3.09-12RD1711 None None J J3.70-11 RD1540 None J3.75-11 RD1580 K K2.70-12LA1439 None K4.1 O-NARD1120 L L2.10-NARD1339. None L2.39-NARD1309 M M2.34-14RD1346 None M3.69-LYLA 1290 N N2.08-15RD1350 None N2.08-15RD1350 p P2.76-HW751534 None P2.94-16RD1309 Q Q2.35-MILA1619 None Q2.35-MILA1619 R R2.08-NALN1650 None None Identifiers are based upon the following protocol:

EXAMPLE: A2.47-17RD1474 "A" = Sector A "2.47" = 2.47 miles from the reactor "17RD1474" =address

'~-

2016 Annual Radiological Environmental Operating Report

_Wolf Creek Generating Station Page D - 4

TABLE 2 SECTOR 2015 NEAREST 2016 NEAREST RESIDENCE RESIDENCE A A2.47-17RD1474 A2.47-17RD1474 B 83.53-0URD1755 83.53-0URD1755 c C1.92-16RD1703 C1.92-16RD1703 D 02.03-QULA1571 02.03-0ULA 1571 E E1 .77-0ULA1485 E1 .78-QULA1451 F F1.84-0ULA 1419 F1 .84-0ULA1419 G G3.03-13RD1820 G3.03-13RD1820 H H3.09-12RD1711 H3.09-12RD1711

' J3.70-11 RD1540 J J3.70-11 RD1540 K K2.70-12LA1439 K2.70-12LA1439 L L2.1O-NARD1339 L2.1O-NARD1339 M M2.34-14RD1346 M2.34-14RD1346 N N2.08-15RD1350 N2.08-15RD1350 p P2.76-HW751534 P2.76-HW751534 0 02.35-MILA 1619 02.35-MILA 1619 R R2.08-NALN 1650 R2.08-NALN 1650 NOTE: Entries underlined indicate changes from the 2015 Land Use Census.

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station

Page D - 5

TABLE 3 2016 Land Use Census Milk and Garden Data SECTOR 2015 2016 2015 NEAREST 2016 NEAREST MILKING MILKING GARDEN GARDEN ANIMALS ANIMALS PRODUCING PRODUCING BROAD LEAF BROAD LEAF VEGETATION VEGETATION A None None A2.60-17TE1527 A2.60-17TE1527 B None None None B4.12-QURD1823 c None None C4.89-18RD1859 C4.89-18RD1859 D None None None D3.00-16RD1829 E None None None None F None None F2.44-RERD1391 F2.44-RERD1391 G None None G4.08-SHRD1234 G3.60-RERD1198 H None None H3.09-12RD1711 None J None None J3.90-11RD1519 J3. 75-11RD1580 K None None K4.10-NARD1120 K4.1 O-NARD1120 L None None L2.60-NARD1308 L2.39-NARD1309 M None None M3.69-LYLA1290 M3.69-LYLA 1290 N None None N2.38-RODR9 N2.08-15RD1350 p None None P4.97-LARD343 P2.94-16RD1309 Q None None Q2.35-MILA1619 . Q2.35-MILA1619 R None None None None NOTE: Underlined entries indicate changes from the 2015 Land Use Census.

2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D- 6

TABLE 4 Information Used for D/Q Calculations on Gardens Producing Broad leaf Vegetation FROM FROM LAND SA USE 004 DIST CALC NEAR NEAR FAR FAR SECTOR SECTOR (Ml) (METERS) DIST D/Q DIST D/Q CALC RANKING A 2.60 4184 4000 1.85E-09 5000 1.26E-09 1.74E-09 1 B 4.12 6630 6000 4.84E-10 7000 3.59E-10 4.05E-10 8 c 4.89 7870 7000 1.51 E-10 8000 1.22E-10 1.26E-10 13 D 3.00 4828 4000 2.93E-10 5000 1.99E-10 2.15E-10 12 E

F 2.44 3927 3000 7.00E-10 4000 4.20E-10 4.40E-10 7 G 3.60 5794 5000 5.02E-10 6000 3.69E-10 3.96E-10 9 H

J 3.75 6035 6000 4.46E-10 7000 3.31 E-10 4.42E-10 6 K 4.10 6598 6000 3.88E-10 7000 2.88E-10 3.28E-10 10 L 2.39 3846* 3000 1.12E-09 4000 6.75E-10 7.44E-10 4 M 3.69 5938 5000 3.46E-10 6000 2.55E-10 2.61E-10 11 N 2.08 3347 3000 1.15E-09 4000 6.88E-10 9.90E-10 3 p 2.94 4731 4000 7.26E-10 5000 4.94E-10 5.56E-10 5 Q 2.35 3782 3000 1.51 E-09 4000 9.04E-10 1.04E-09 2 R

J Originated by: ~~x ;p~ . Date: 12-15-16 Verified by: ~T~ Date:

1-18-17 2016 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D- 7

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