ML15124A430

Annual Radiological Environmental Operating Report for the Period of January 1, 2014, Through December 31, 2014

ML15124A430
Person / Time
Site:	Wolf Creek
Issue date:	04/23/2015
From:	Koenig S Wolf Creek
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RA 15-0040
Download: ML15124A430 (170)

Text

WL.F CR EE K NUCLEAR OPERATING CORPORATION Steven R. Koenig April 23, 2015 Manager Regulatory Affairs RA 15-0040 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Docket No. 50-482: 2014 Annual Radiological Environmental Operating Report Gentlemen:

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 around WCGS for the period of January 1, 2014, through December 31, 2014.

This letter contains no commitments. If you have any questions concerning this matter, please contact me at (620) 364-4041.

Sincerely,

/ ,1k Steven R. Koenig SRK/rlt Enclosure cc: M. L. Dapas (NRC), w/e C. F. Lyon (NRC), w/e A. A. Rosebrook (NRC), w/e Senior Resident Inspector (NRC), w/e P.O. Box 411 / Burlington, KS 66839 / Phone: (620) 364-8831 An Equal Opportunity Employer M/F/HCNET

Enclosure to RA 15-0040 Wolf Creek Nuclear Operating Corporation Wolf Creek Generating Station 2014 Annual Radiological Environmental Operating Report (168 pages)

WOLF CREEK NUCLEAR OPERATING CORPORATION WOLF CREEK GENERATING STATION 2014 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT A

F April 15, 2015

TABLE OF CONTENTS List of Tables ii List of Figures ii List of Charts ii Executive Summary 1 Introduction 1 I. Program Description 1 I1. Discussion of Results 4 II1. Program Revisions/Changes 9 IV. Program Deviations 10 V. Interlaboratory Comparison Program 11 VI. Comparison to the Radioactive Effluent Release Program 11 Tables 12 Figures 21 Charts 26 Appendix A - Interlaboratory Comparison Program Results Appendix B - Summary Tables Appendix C - Individual Sample Results Air Particulate and Charcoal Filters C-1 Quarterly Air Particulate - Gamma C-13 Surface Water C-25 Ground Water C-34 Drinking Water C-49 Quarterly Drinking Water - Tritium C-57 Shoreline Sediment C-59 Fish C-61 Food/Garden C-68 Feed and Forage C-79 Bottom Sediment C-82 Aquatic Vegetation C-97 Terrestrial Vegetation C-99 Soil C-101 Deer C-102 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 Sampling 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 2014 in airborne particulate and radioiodine filters, drinking water, ground water, broadleaf vegetation, shoreline sediment, crops, aquatic vegetation, terrestrial vegetation or soil samples. Activation, corrosion or fission products attributable to plant operation were detected during 2014 in surface water, fish, bottom sediment and deer samples.

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

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

INTRODUCTION The 2014 Annual Radiological Environmental Operating Report for Wolf Creek Generating Station (WCGS) covers the period from January 1 through December 31, 2014. 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 Interlaboratory Comparison Program and a comparison to the Radioactive Effluent Release Program. The Interlaboratory 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 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.

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A. Airborne Pathway Low volume air sampling pumps with digital flow meters continuously collected air particulate and radioiodine samples on 47 mm glass fiber filters and charcoal canisters, respectively. The air particulate filters and charcoal 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. Charcoal 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 2 0 1h 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 43 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 2 0 th 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 JRR control location and from the SP indicator location. The SP indicator sample location is located near the spillway of Coffey County Lake.

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 IO-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 JRR control location.

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

Fish were sampled semiannually from the Coffey County Lake (indicator sample location) and from the tail waters of 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-I, H-2, Q-6 and R-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 two indicator sample 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-U1. Gamma isotopic analysis was performed on each sample. Crop sample locations are identified on Figure 5.

E. Additional Samples Collected (not required by AP 07B-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 DC, Ultimate Heat Sink (UHS), Essential Service Water (ESW) channel, Stringtown Cemetery (SC) and the control sample location (JRR). Gamma isotopic analyses were performed on the bottom sediment samples. Fourteen samples collected from indicator locations and one sample collected from the control location were also analyzed for Fe-55. Six samples collected from indicator locations and one sample collected from the control location were also analyzed for the Hard-to-Detect (HTD) radionuclides. One bottom sediment sample was 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 Discharge Cove Alternate (DC ALT) 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) and MUDS indicator sample locations. Gamma isotopic analyses were performed on the grass samples. These samples were collected as part of a cooperative sampling effort with the KDHE. The sample locations are identified on Figure 4.

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Soil was sampled from the MUDS 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 A1.0. 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 for all of the airborne sample locations. 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 2014 were compared to pre-operational monitoring results of 1983 and 3 1984. The weekly gross beta analyses range for 1983 and 1984 was 0.0064 to 0.084 pCi/m 3.

The 2014 weekly gross beta analyses range for indicator locations was 0.009 to 0.047 pCi/m .

The 2014 weekly gross beta analyses range was within the 1983 and 1984 pre-operational range. Additionally, the annual mean for indicator locations for 2014 (0.024 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 2014 (0.024 pCi/m 3) was slightly lower than the annual mean of the control location (0.025 pCi/m 3). The indicator location with the highest gross beta annual mean was location 49 (0.025 pCi/m 3) and was the same as the annual mean of the control location (0.025 pCi/m 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 2014, the range for Be-7 detected activity was 0.042 to 0.096 pCi/m 3 for indicator locations and the annual mean for indicator locations was 0.070 pCi/m 3. The control location annual mean for Be-7 detected activity (0.073 pCi/m 3) was slightly higher than the annual mean of the indicator locations (0.070 pCi/m 3). The indicator location with the highest annual mean of detected Be-7 activity (0.072 pCi/ M3) was location 2.

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

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The AP 07B-004 required lower limits of detection were met. Plant-related activation, corrosion, or fission products were not detected during 2014 in airborne particulate and radioiodine filters and 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 2014 was 18.3 mR per standardized 90-day quarter. The annual mean of the control sample locations in 2014 was 18.2 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 47 (23.9 mR per standardized 90-day quarter). The close proximity of location 47 to the Radwaste Building is likely the reason direct radiation levels are higher at this location.

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 2014.

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 SP indicator sample location. The annual mean for detected tritium activity at the SP location was 11,663 pCi/L and the range was 9,944 to 14,318 pCi/L. The detected tritium activity was below the 30,000 pCi/L AP 07B-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 (JRR).

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

The AP 07B-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 2014 in surface water samples and no unusual trends were noted.

(2) Ground Water The AP 07B-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 2014 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 (2.2 pCi/L). The 2014 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.

Radionuclides were not detected by the 1-131 or gamma isotopic analyses.

The AP 07B-004 required lower limits of detection were met. Plant-related activation, corrosion, or fission products were not detected during 2014 in drinking water samples and 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.

No other radionuclides were detected in the DC or JRR shoreline sediment samples during 2014.

The AP 07B-004 required lower limits of detection were met. Plant-related activation, corrosion, or fission products were not detected during 2014 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.

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(2) Fish Naturally occurring K-40 activity was detected in fish samples obtained from the 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 (8,594 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 (10,500 pCi/kg), would receive a committed effective dose equivalent of 0.014 mRem.

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

No other radionuclides were detected in fish samples during 2014. The AP 07B-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 Be-7 and K-40. Be-7 and K-40 activity were also detected pre-operationally.

No other radionuclides were detected in broadleaf vegetation samples during the year.

The AP 07B-004 required lower limits of detection were met. Plant-related activation, corrosion, or fission products were not detected during 2014 in broadleaf vegetation samples 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.

The AP 078-004 required lower limits of detection were met. Plant-related activation, corrosion, or fission products were not detected during 2014 in crop samples and no unusual trends were noted.

E. Additional Samples Collected (not required by AP 07B-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.

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Co-60 activity (33 pCi/kg, dry) was detected in one sample obtained from the UHS indicator location. Co-60 activity was attributable to plant operation and has been identified in plant effluents. Co-60 activity was not detected in pre-operational radiological environmental monitoring and was not detected in the samples collected from the JRR control location.

Cs-137 activity was detected in nine samples obtained from indicator locations (range 33 to 170 pCi/kg, dry). Cs-137 activity was also detected in both samples obtained from the control sample location (range 120 to 132 pCi/kg, dry).

Cs-137 activity was detected in pre-operational samples. The Cs-137 activity detected in 2014 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-1 37 activity detected is approximately 37 to 445 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 and Cs-137 activity has also been detected in samples collected at the control sample location.

Chart 7 plots the Cs-1 37 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 trendline 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-1 37 activity for the JRR and DC sample locations overlap.

Fe-55 activity was not detected in the fourteen samples obtained from indicator sample locations or in the sampled collected from the control sample location.

Analysis for the Hard to Detect radionuclides was performed on six indicator location samples and on one sample obtained from the control location. Naturally occurring uranium was detected in the indicator location samples as well as the control location sample.

No other radionuclides were detected in bottom sediment samples and no unusual trends were noted.

(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 2014 in aquatic vegetation samples and no unusual trends were noted.

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(3) Terrestrial Vegetation Naturally occurring Be-7 and K-40 activity were detected in terrestrial vegetation indicator location samples. No other radionuclides were detected in terrestrial vegetation. Plant-related activation, corrosion or fission products were not detected during 2014 in terrestrial vegetation samples and no unusual trends were noted.

(4) Soil Naturally occurring K-40 activity was detected in soil samples obtained from the indicator locations. K-40 activity was also detected during pre-operational soil monitoring.

Cs-137 activity (50 pCi/kg) was detected in the soil sample obtained from the 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 130 to 1,104 pCi/kg. The detected Cs-137 activity in soil sampled in 2014 is within the decay corrected pre-operational range and is likely due to fallout.

Plant-related activation, corrosion, or fission products were not detected during 2014 in soil samples and no unusual trends were noted.

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

Tritium activity (1,251 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, at the measured tritium concentration (1,251 pCi/kg), would receive a committed effective dose equivalent of 0.006 mRem.

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

Ill. PROGRAM REVISIONS/CHANGES Based upon Condition Report 00085428, AP 07B-004, Offsite Dose Calculation Manual (RadiologicalEnvironmentalMonitoring Program), was revised to remove required monitoring at dosimeter location 47.

Based upon Condition Report 00084016, AP 07B-004, Offsite Dose Calculation Manual (RadiologicalEnvironmental Monitoring Program), was revised to clarify the descriptions of the drinking water sample locations.

Dosimeter location 17 was moved to the north side of the road due to utility pole replacement.

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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 07B-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 Discrepancyl Condition Report Number Hours Unavailable 49 02/10/14 - 02/17/14 45.7 / 76 Damaged Electrical Power Box Condition Report 00079702 49 06/16/14 - 06/23/14 39.7 / 66 Power Outage /

Equipment Operated as Expected /

Condition Report 00085514 37 07/14/14 - 07/22/14 22.0 / 42 Power Outage /

Equipment Operated as Expected /

Condition Report 00086521 49 08/11/14 - 08/18/14 12.9 / 22 Power Outage /

Equipment Operated as Expected /

Condition Report 00087208 49 08/25/14 - 09/02/14 8.8 / 17 Power Outage /

Equipment Operated as Expected /

Condition Report 00087685 Ground Water Ground water was not sampled during the first quarter of 2014 from indicator location G-2 due to an inoperable pump. The ground water well is maintained by the landowner. WCNOC personnel attempted to collect water from this location during the months of February and March. Condition Report 00082043 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.

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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 Interlaboratory Comparison Program Results for Environmental, Inc., Midwest Laboratory. Intercomparison 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 0.411 mRem for 2014.

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 (11,663 pCi/L), would receive a committed effective dose equivalent of 0.532 mRem per year. For an adult eating 21 kg of fish per year from Coffey County Lake, using the average tritium activity (8,594 pCi/kg), would receive a committed effective dose equivalent of 0.011 mRem per year. Based upon the REMP results, the dose from both pathways was calculated to be 0.543 mRem per year.

It should be noted Coffey County Lake is not used as a drinking water source. Calculating 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 I 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 activity; 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) 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 12 of 32

TABLE I (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 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 13 of 32

TABLE I (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 iear a residence),

rS chools (Locations 23 F, 52), Wilson Cadman Vildlife Education Area (44), CCL Public F:ishing Area (46) and iin two areas to serve as c:ontrol stations 10-20 niles distant from the s,ite (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).

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-1 0, C-49, F-I, 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).

2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 14 of 32

TABLE I (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 IO-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.

2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 15 of 32

TABLE I (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 (Figure 4).

Broadleaf 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 D/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 D/Q sector (Location D-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-D1 and NR-D2 on Figure 5).

2014 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 Distance from Direction Sector Identifier Reactor 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 2014 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 47 0.16 S J 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 Drinking Water BW-15 3.9 SW L IO-DW 26.1 SSE H Shoreline Sediment DC 0.8 WNW P 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 Q-6 2.4 NW Q R-2 2.0 NNW R 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 ESW 0.5 E E JRR 3.7 W N SC 0.8 NNW R UHS 0.6 E E Aquatic Vegetation DC ALT 1.5 NW Q MUDS 1.5 WNW P 2014 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 Terrestrial Vegetation EEA 3.0 NNW R MUDS 1.5 WNW P Soil MUDS 1.5 WNW P Meat (Deer) A1.0 1.0 N A 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 19 of 32

TABLE 3 OSL Dosimeter Results mR/Standardized 90-day Quarter)

Location Qtr. 1 Qtr. 2 Qtr. 3 Qtr. 4 Total Annual (mR) (mR) (mR) (mR) Exposure (mR) 1 19.2 23.7 19.8 15.8 78.5 2 16.0 17.2 20.5 16.2 69.9 4 19.1 20.6 20.2 18.8 78.7 5 16.8 16.5 16.3 16.8 66.4 7 17.1 15.1 17.3 18.0 67.5 8 18.5 18.4 19.2 21.4 77.5 9 17.4 17.0 17.1 15.5 67.0 11 18.5 20.2 20.5 22.1 81.3 12 19.0 15.8 18.3 17.7 70.8 13 18.5 19.9 21.9 19.4 79.7 14 20.0 18.2 22.0 17.6 77.8 15 17.6 20.0 16.5 18.2 72.3 16 15.5 17.4 22.4 18.5 73.8 17 18.5 18.2 17.6 18.2 72.5 18 17.9 18.2 19.9 14.7 70.7 19 20.7 20.1 20.4 20.4 81.6 20 17.1 18.6 18.3 18.0 72.0 22 22.2 17.7 19.7 21.0 80.6 23 19.1 18.7 18.8 19.8 76.4 24 19.4 18.7 19.1 19.1 76.3 25 13.1 16.6 14.4 14.6 58.7 26 15.7 16.6 17.4 16.1 65.8 27 17.9 18.5 18.1 20.5 75.0 29 16.2 15.3 13.5 14.1 59.1 30 18.1 21.3 20.2 17.6 77.2 32 16.5 17.9 19.4 16.0 69.8 34 22.0 21.8 20.2 19.7 83.7 35 18.2 19.2 20.2 17.3 74.9 36 17.9 18.9 19.2 18.8 74.8 37 15.0 13.7 16.7 18.0 63.4 38 18.6 19.4 23.1 20.4 81.5 39 15.9 17.9 18.6 19.1 71.5 41 17.8 16.3 21.4 18.1 73.6 42 12.9 11.5 15.8 13.2 53.4 43 12.3 13.3 10.4 10.0 46.0 44 19.2 18.5 20.8 19.5 78.0 46 18.4 19.0 16.0 16.7 70.1 47 25.7 30.2 21.8 17.8 95.5 49 19.7 16.1 14.6 16.8 67.2 50 19.1 17.2 20.3 21.8 78.4 51 18.1 18.6 19.9 18.9 75.5 52 17.6 22.0 22.8 18.7 81.1 53 16.2 19.2 19.4 19.2 74.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 20 of 32

FIGURE 1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 21 of 32

FIGURE 2 DIRECT RADIATION PATHWAY SAMPLING LOCATIONS

• = DOSIMETER LOCATIONS 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 22 of 32

FIGURE 3 WATERBORNE PATHWAY SAMPLING LOCATIONS

• = DRINKING WATER A = SURFACE WATER 0 = GROUND WATER * = SHORELINE SEDIMENT

• = BOTTOM SEDIMENT S= AQUATIC VEGETATION 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 23 of 32

FIGURE 4 INGESTION PATHWAY SAMPLING LOCATIONS A = FISH (JRR) I- BROADLEAF VEGETATION *= SOIL

• j= FISH (CCL) TERRESTRIAL VEGETATION DEER 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 24 of 32

FIGURE 5 A

• = AIRBONE PARnaiOLATE &RAD1010DINE 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 25 of 32

CHART I 2014 Airborne Gross Beta Weekly Results 0.070 0.060 0.050 E 0.040 0.030 a) 0.020 (9

0.010 0 U.Uuu 0 4 8 12 16 20 24 28 32 36 40 44 48 52 Week Number m Location 2 9 Location 18 + Location 32 A Location 37

• Location 49 --*-Location 53 (Control) 2014 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 26 of 32

CHART 2 0.060 E

0.050

~0 0 0.040 01 0~

a,) 0.030 0

0 U) 0.020 0.010 0 1 0

'0,\ \\0

---

Smoothed Avg. Indicator Locations - Smoothed Avg. Control Locations 2014 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 27 of 32

CHART 3 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 E

15.0 13.0 11.0 9.0 I

7.0 I I I I I I III I I I I I I I I I I I I I I I_ _ _

%, , J\ C6,'bC8ý  ;,%. ,'01, (P J\ 6b 4ý,1 Nlý 4r \rb \11, i\ * ,'b b, 14\ P,%,b , * ,b Year/Quarter Indicator Locations Standardized 90-Day Quarter (mR) --- Control Locations Standardized 90-Day Quarter (mR) 2014 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 28 of 32

CHART 4 Historical TLD Nearsite Locations and Control Locations 32.0 30.0 28.0 26.0 24.0

{E 22.0 20.0 18.0 16.0 14.0 12.0 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 Avg. of Nearsite Locations A Avg. of Control Locations Moving Avg. of Nearsite Locations (2 period) - - - - Moving Avg. of Control Locations (2 period) 2014 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 29 of 32

CHART 5 Coffey County Lake Surface Water Tritium Data 16,000 14,000 12,000 10,000 L..

-J 8,000 6,000 4,000 2,000 0 -

1987 1992 1997 2002 2007 2012 I s- Yearly Average of Spillway Location -Polynomial Trendline 2014 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 30 of 32

~.3

=> Gross Beta (in pCi/liter) 1/4/2010

c. 3/1/2010 -

0" 5/3/2010

_ 7/6/2010 m 9/7/2010 - - -

11/1/2010

-3 -- 1/3/2011 CD

_ 3/7/2011 O0 5/2/2011 CD

• 7/5/2011 SI 9/6/2011 C 11/7/2011 0 1/3/2012--

o o 3/5/2012 "

7/2/2012 <0 CDD CD 9/4/2012 >o -

CD CDCD

-9 11/5/2012 1/7/2013 CD 3/5/2013 0* 5/6/2013

" 7/1/2013 9/3/2013 11/4/2013 1/7/2014 3/3/2014 5/5/2014 7/7/2014 9/2/2014 "T 11/3/2014 CD 0,

w IQ

CHART 7 Detected Cs-137 Activity in Bottom Sediment 1,000 900 800 700 600 500 400 300 200 100 0

V-N 't I'- 0M C N M' U) tI- M) 0 N M' It U') (0 tl- Mo M)~

mo wo w w w 0M 0M 0M M 0) C0 0 0 0 0) 0 0 0) 0 - -

U') 10 CM M 0 (- C M) 10 N MO U') I- N ~-0 U) U) ) 0M M 0M 't 0- 0 N~ N~ 0 0 N~ TI- N - Ný 0 (D ' N N N N 10 0 0 0 ) 0 C) - M- 0) U 0 L0 It LO U 0 U') 0 0 C ) U) U0 (0 U0 0 0 ~- 0 0) - 0) 0 0) 0 0 0D 0 0 0) 0 T.- V- 0D 0 0) ' 0

• DC Cs- 137 m JRR Cs-1 37 - Polynomial Trendline (DC)--- Polynomial Trendline (JRR) 2014 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 32 of 32

OAT'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 Intercomparison 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, 2014 through December, 2014

Appendix A Interlaboratory 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 environmental sample crosscheck 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 International Intercomparison of Environmental Dosimeters, when available, and internal laboratory testing.

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 environmental sample crosscheck 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.

Al

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 5 20 pCi/liter 5.0 pCi/liter

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

> 100 pCi/liter 5% of known value Tritium < 4,000 pCi/liter + Ia =

00 933 169.85 x (known)

> 4,000 pCi/liter 10% of known value Radium-226,-228  ? 0.1 pCi/liter 15% of known value Plutonium 2 0.1 pCi/liter, gram, or sample 10% of known value Iodine-131, < 55 pCi/liter 6 pCilliter Iodine-129b > 55 pCi/liter 10% of known value Uranium-238,  : 35 pCi/liter 6 pCi/liter Nickel-63b > 35 pCi/liter 15% of known value Technetium-99b Iron-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, "Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-600/4-81-004.

b Laboratory limit.

A2

TABLE A-1. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result b Result c Limits Acceptance ERW-1384 4/7/2014 Sr-89 40.29 +/- 5.76 36.70 27.50 +/- 43.60 Pass E RW- 1384 4/7/2014 Sr-90 24.08 +/- 2.35 26.50 19.20 +/- 30.90 Pass ERW-1385 4/7/2014 Ba-133 78.23 +/- 3.93 87.90 74.00 +/- 96.70 Pass ERW-1385 4/7/2014 Co-60 62.75 +/- 3.53 64.20 57.80 +/- 73.10 Pass ERW-1385 4/7/2014 Cs-134 44.97 +/- 3.99 44.30 35.50 +/- 48.70 Pass ERW-1385 4/7/2014 Cs-1 37 88.54 +/- 4.93 89.10 80.20 +/- 101.00 Pass ERW-1385 4/7/2014 Zn-65 249.1 +/- 10.4 235.0 212.0 - 275.0 Pass ERW-1388 4/7/2014 Gr. Alpha 56.70 +/- 2.47 61.00 31.90 +/- 75.80 Pass ERW-1388 4/7/2014 Gr. Beta 32.10 +/- 1.20 33.00 21.40 +/- 40.70 Pass ERW-1391 4/7/2014 1-131 25.52 +/- 1.12 25.70 21.30 +/- 30.30 Pass ERW-1 394 4/7/2014 Ra-226 12.30 +/- 0.61 12.40 9.26 +/- 14.30 Pass ERW-1394 4/7/2014 Ra-228 5.08 +/- 1.16 4.26 2.46 +/- 5.86 Pass ERW-1394 4/7/2014 Uranium 10.76 +/- 0.74 10.20 7.95 +/- 11.80 Pass ERW-1397 4/7/2014 H-3 8982 +/- 279 8770 7610 -9650 Pass ERW-5382 10/6/2014 Sr-89 29.40 +/- 5.32 31.40 22.80 +/- 38.10 Pass ERW-5382 10/6/2014 Sr-90 19.19 +/- 1.85 21.80 15.60 +/- 25.70 Pass ERW-5385 10/6/2014 Ba-133 43.54 +/- 4.54 49.10 40.30 +/- 54.50 Pass ERW-5385 10/6/2014 Cs-134 81.95 +/- 7.49 89.80 73.70 +/- 98.80 Pass ERW-5385 10/6/2014 Cs-1 37 95.76 +/- 5.50 98.80 88.90 +/- 111.00 Pass ERW-5385 10/6/2014 Co-60 90.25 +/- 2.77 92.10 82.90 +/- 104.00 Pass ERW-5385 10/6/2014 Zn-65 327.4 +/- 23.3 310.0 279.0 - 362.0 Pass ERW-5388 10/6/2014 Gr. Alpha 30.88 +/- 8.05 37.60 19.40 +/- 46.10 Pass ERW-5388 10/6/2014 G. Beta 20.47 +/- 4.75 27.40 17.30 +/- 35.30 Pass ERW-5392 10/6/2014 1-131 19.58 +/- 2.35 20.30 16.80 +/- 24.40 Pass ERW-5394 10/6/2014 Ra-226 15.10 +/- 1.81 14.70 11.00 +/- 16.90 Pass ERW-5394 10/6/2014 Ra-228 4.42 +/- 0.86 4.31 2.50 +/- 5.92 Pass ERW-5394 10/6/2014 Uranium 5.51 +/- 0.37 5.80 4.34 +/- 6.96 Pass ERW-5397 10/6/2014 H-3 6876 +/- 383 6880 5940 - 7570 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 Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

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

A1-1

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

mR Lab Code Date Known Lab Result Control Description Value +/- 2 sigma Limits Acceptance Environmental, Inc.

2014-1 5/15/2014 50 cm. 26.83 34.43 +/- 3.76 18.78 - 34.88 Pass 2014-1 5/15/2014 60 cm. 18.63 22.20 +/- 1.16 13.04 - 24.22 Pass 2014-1 5/15/2014 70 cm. 13.69 14.74 +/- 0.80 9.58 - 17.80 Pass 2014-1 5/15/2014 75 cm. 11.93 12.68 +/- 1.05 8.35 - 15.51 Pass 2014-1 5/15/2014 80 cm. 10.48 11.81 +/- 0.91 7.34 - 13.62 Pass 2014-1 5/15/2014 90 cm. 8.28 7.72 +/- 0.71 5.80 - 10.76 Pass 2014-1 5/15/2014 100 cm. 6.71 6.46 +/- 0.71 4.70 - 8.72 Pass 2014-1 5/15/2014 110 cm. 5.54 5.25 +/- 1.03 3.88 - 7.20 Pass 2014-1 5/15/2014 120 cm. 4.66 4.76 +/- 0.48 3.26 - 6.06 Pass 2014-1 5/15/2014 135 cm. 3.68 2.87 +/- 0.46 2.58 - 4.78 Pass 2014-1 5/15/2014 150 cm. 2.98 2.30 +/- 0.15 2.09 - 3.87 Pass 2014-1 5/15/2014 165 cm. 2.46 2.09 +/- 0.28 1.72 - 3.20 Pass 2014-1 5/15/2014 180 cm. 2.07 1.75 +/- 0.21 1.45-2.69 Pass Environmental, Inc.

2014-2 12/9/2014 30 cm. 77.04 84.03 +/- 8.47 53.90 - 100.20 Pass 2014-2 12/9/2014 30 cm. 77.04 83.74 +/- 12.02 53.90 - 100.20 Pass 2014-2 12/9/2014 60 cm. 19.26 20.39 +/- 2.37 13.50 - 25.00 Pass 2014-2 12/9/2014 60 cm. 19.26 20.33 +/- 1.19 13.50 - 25.00 Pass 2014-2 12/9/2014 120 cm. 4.82 5.15 +/- 0.20 3.40 - 6.30 Pass 2014-2 12/9/2014 120 cm. 4.82 5.20 +/- 0.45 3.40 - 6.30 Pass 2014-2 12/9/2014 150 cm. 3.08 3.84 +/- 0.61 2.20 - 4.00 Pass 2014-2 12/9/2014 150 cm. 3.08 3.17 +/- 0.38 2.20 - 4.00 Pass 2014-2 12/9/2014 150 cm. 3.08 3.31 +/- 0.32 2.00 - 4.00 Pass 2014-2 12/9/2014 180 cm. 2.14 2.27 +/- 0.51 1.50 -2.80 Pass 2014-2 12/9/2014 180 cm. 2.14 2.23 +/- 0.12 1.50 - 2.80 Pass 2014-2 12/9/2014 180 cm. 2.14 2.74 +/- 0.48 1.50 -2.80 Pass 2014-2 12/9/2014 180 cm. 2.14 1.97 +/- 0.41 1.50 -2.80 Pass A2-1

TABLE A-3. In-House "Spiked" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 C Activity Limits d Acceptance SPW-1011I 1/13/2014 Ra-228 35.47 +/- 2.55 30.85 21.60 - 40.11 Pass SPAP-103 1/13/2014 Gr. Beta 43.91 +/- 0.34 44.82 26.89 - 62.75 Pass SPAP-105 1/13/2014 Cs-134 2.46 +/- 0.67 2.82 1.69 -3.95 Pass SPAP-105 1/13/2014 Cs-137 102.4 +/- 2.7 99.9 89.9 - 109.9 Pass SPW-107 1/13/2014 H-3 62,380 +/- 707 62,246 49,797 - 74,695 Pass SPW-129 1/15/2014 Cs-134 69.90 +/- 3.71 78.00 68.00 - 88.00 Pass SPW-129 1/1512014 Cs-137 84.36 +/- 7.06 75.77 65.77 - 85.77 Pass SPW-129 1/15/2014 Sr-90 39.48 +/- 1.52 39.20 31.36 - 47.04 Pass SPW-130 1/15/2014 Ni-63 255.8 +/- 3.8 204.0 142.8 -265.2 Pass SPW-133 1/15/2014 C-14 3153 +/- 15 4737 2842 - 6632 Pass SPMI-135 1/15/2014 Cs-134 76.80 +/- 4.04 78.00 68.00 - 88.00 Pass SPMI-135 1/15/2014 Cs-137 80.44 +/- 6.63 75.80 65.80 - 85.80 Pass W-12014 1/20/2014 Gr. Alpha 19.69 +/- 0.41 20.00 10.00 - 30.00 Pass W-12014 1/20/2014 Gr. Beta 30.35 +/- 0.33 30.90 20.90 - 40.90 Pass SPW-297 1/29/2014 Tc-99 104.2 +/- 1.7 107.8 75.5 - 140.2 Pass SPW-657 2/25/2014 Ra-226 15.84 +/- 0.45 16.70 11.69 - 21.71 Pass SPW-1 127 3/26/2014 U-238 43.28 +/- 2.56 41.72 29.20 - 54.24 Pass SPW-1917 3/28/2014 Pu-238 27.37 +/- 2.13 23.80 14.28 - 33.32 Pass SPW-1786 4/25/2014 Tc-99 531.1 +/- 8.7 539.15 377.41 -700.90 Pass SPW-2168 5/21/2014 Cs-134 70.90 +/- 5.81 69.50 59.50 - 79.50 Pass SPW-2168 5/21/2014 Cs-137 79.72 +/- 6.49 75.17 65.17 - 85.17 Pass SPW-2168 5/21/2014 Sr-89 83.35 +/- 5.05 72.85 58.28 - 87.42 Pass SPW-2168 5/21/2014 Sr-90 33.37 +/- 1.52 38.87 31.10 - 46.64 Pass SPMI-2170 5/21/2014 Cs-1 34 64.15 +/- 4.93 69.50 59.50 - 79.50 Pass SPMI-2170 5/21/2014 Cs-1 37 76.21 +/- 6.91 75.17 65.17 - 85.17 Pass SPMI-2170 5/21/2014 Sr-89 65.82 +/- 4.89 72.85 58.28 - 87.42 Pass SPMI-2170 5/21/2014 Sr-90 40.90 +/- 1.59 38.87 31.10 - 46.64 Pass SPW-2792 6/18/2014 U-238 44.80 +/- 1.54 41.70 29.19 - 54.21 Pass SPW-2796 6/18/2014 C-14 3495 +/-9 4,737 2,842 - 6632 Pass WW-2836 6/30/2014 Co-60 131.8 +/- 6.9 140.90 126.81 - 154.99 Pass WW-2836 6/30/2014 Cs-137 143.8 +/- 9.1 145.60 131.04 - 160.16 Pass WW-2836 6/30/2014 H-3 6220 +/- 238 6,361 5,089 - 7633 Pass A3-1

TABLE A-3. In-House "Spiked" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Limits d Acceptance SPW-3486 7/17/2014 Fe-55 2211 +/-72 2319 1855 -2783 Pass SPW-080714 8/7/2014 Gr. Alpha 18.42 +/- 0.40 20.10 10.05 - 30.15 Pass SPW-080714 8/7/2014 Gr. Beta 31.70 +/- 0.40 32.40 22.40 - 42.40 Pass SPW-081214 8/12/2014 Pu-238 22.59 +/- 2.15 22.70 18.16 - 27.24 Pass SPW-4093 8/13/2014 1-131 (G) 59.95 +/- 6.17 59.62 49.62 - 69.62 Pass SPW-4093 8/13/2014 Sr-90 39.46 +/- 1.55 38.65 28.65 - 48.65 Pass SPW-4093 8/13/2014 Sr-89 105.5 +/-4.9 115.0 92.0 - 149.5 Pass SPMI-4095 8/13/2014 1-131(G) 59.92 +/- 6.17 59.62 49.62 - 69.62 Pass SPMI-4095 8/13/2014 1-131 60.05 +/- 0.72 59.62 47.70 - 71.54 Pass SPW-4104 8/13/2014 Ni-63 200.1 +/- 3.4 203.2 142.2 - 264.1 Pass SPW-4106 8/13/2014 H-3 59,597 +/- 695 60,261 48209 - 72313 Pass SPW-4108 8/13/2014 Cs-134 2.45 +/- 0.81 2.32 0.00 - 12.32 Pass SPW-4108 8/13/2014 Cs-137 90.20 +/- 3.74 98.56 88.56 - 108.56 Pass SPAP-41 10 8/13/2014 Gr. Beta 43.65 +/- 0.11 44.19 34.19 - 54.19 Pass SPF-4112 8/13/2014 1-131 2.64 +/- 0.38 2.86 0.00 - 12.86 Pass SPF-4112 8/13/2014 Cs-1 34 0.91 +/- 0.03 1.03 0.00-11.03 Pass SPF-4112 8/13/2014 Cs-137 2.61 +/- 0.06 2.39 0.00 - 12.39 Pass SPW-081414 8/14/2014 H-3 14,663 +/- 788 17,700 14160 -21240 Pass W081614 8/16/2014 Ra-226 14.30 +/- 0.37 16.70 11.69 - 21.71 Pass W082614 8/26/2014 Ra-228 27.18 +/- 2.13 30.49 20.49 - 40.49 Pass SPW-090414 9/4/2014 Gr. Alpha 17.85 +/- 0.39 20.10 10.05 - 30.15 Pass SPW-090414 9/4/2014 Gr. Beta 30.03 +/- 0.33 30.90 20.90 - 40.90 Pass SPW-5124 9/29/2014 Ra-228 32.93 +/- 2.38 31.94 21.94 - 41.94 Pass W100714 1017/2014 Gr. Alpha 18.56 +/- 0.40 20.10 10.05 - 30.15 Pass W100714 10/7/2014 Gr. Beta 27.71 +/- 0.32 30.90 20.90 - 40.90 Pass W111014 11/10/2014 Gr. Alpha 17.84 +/- 0.38 20.10 10.05 - 30.15 Pass W111014 11/10/2014 Gr. Beta 30.12 +/- 0.33 30.90 20.90 - 40.90 Pass W1 12514 11/25/2014 Ra-226 16.63 +/- 0.41 16.70 11.69 - 21.71 Pass W120814 12/8/2014 Gr. Alpha 19.29 +/- 0.41 20.10 10.05 - 30.15 Pass W120814 12/8/2014 Gr. Beta 27.93 +/- 0.32 30.90 20.90 - 40.90 Pass SPW-7149 12/26/2014 Ni-63 217.53 +/- 3.25 203.10 142.17 - 264.03 Pass a 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), MI (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, Jello is used for the spike matrix. For vegetation, cabbage is used for the spike matrix.

A3-2

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

SPW-1001 Water 1/13/2014 Ra-228 0.74 0.39

• 0.39 2 SPAP-102 Air Particulate 1/13/2014 Gr. Beta 0.003 0.015 +/- 0.003 0.01 SPAP-104 Air Particulate 1/13/2014 Cs-1 34 0.006 0.005 + 0.005 0.05 SPAP-104 Air Particulate 1/13/2014 Cs-137 0.004 -0.002 +/- 0.005 0.05 SPW-106 Water 1/13/2014 H-3 151.0 115.0 +/- 97.0 200 SPW-128 Water 1/15/2014 Cs-1 34 2.85 0.59 +/- 1.46 10 SPW-128 Water 1/15/2014 Cs-137 2.52 0.68 +/- 1.64 10 SPW-128 Water 1/15/2014 Sr-90 0.61 0.74 +/- 0.36 1 SPW-130 Water 1/15/2014 Ni-63 10.85 1.57 +/- 6.60 20 SPW-133 Water 1/15/2014 C-14 13.51 3.10 +/- 8.27 200 SPMI-134 Milk 1/15/2014 Cs-134 4.43 0.14 +/- 2.46 10 SPMI-134 Milk 1/15/2014 Cs-137 1.92 -2.07 +/- 2.48 10 W-12014 Water 1/20/2014 Gr. Alpha 0.48 -0.31 +/- 0.31 2 W-12014 Water 1/20/2014 Gr. Beta 0.78 -0.24 +/- 0.54 4 SPW-297 Water 1/29/2014 Tc-99 5.63 -4.42 +/- 3.34 10 SPW-656 Water 2/25/2014 Ra-226 0.03 0.01 +/- 0.02 1 SPW-1126 Water 3/26/2014 U-238 0.13 0.08 +/- 0.12 1 SPW-1 127 Water 3/26/2014 U-233/234 0.13 0.11 +/- 0.13 1 SPW-1 127 Water 3/26/2014 U-238 0.00 0.08 +/- 0.12 1 SPW-1917 Water 3/28/2014 Pu-238 0.02 0.01 +/- 0.01 1 SPW-1785 Water 4/25/2014 Tc-99 5.61 -4.33 +/- 3.33 10 SPW-1831 Water 4/30/2014 1-131 0.21 0.07 +/- 0.12 0.5 SPW-2167 Water 5/21/2014 Cs-134 2.29 -0.79 +/- 1.35 10 SPW-2167 Water 5/21/2014 Cs-1 37 2.46 0.36 +/- 1.48 10 SPW-2167 Water 5/21/2014 1-131(G) 2.77 0.25 +/- 1.53 20 SPW-2167 Water 5/21/2014 Sr-89 0.81 0.01 +/- 0.62 5 SPW-2167 Water 5/21/2014 Sr-90 0.52 0.03 +/- 0.24 1 SPMI-2169 Milk 5/21/2014 Cs-134 4.45 -0.55 +/- 2.39 10 SPMI-2169 Milk 5/21/2014 Cs-137 3.91 -0.52 +/- 2.60 10 SPMI-2169 Milk 5/21/2014 1-131(G) 4.31 2.57 +/- 2.21 20 SPMI-2169 Milk 5/21/2014 Sr-89 0.98 -0.02 +/- 0.83 5 SPMI-2169 Milk 5/21(2014 Sr-90 0.61 0.35 +/- 0.32 1 SPW-2793 Water 6/18/2014 U-238 0.08 0.02 +/- 0.06 1 A4-1

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

SPW-3485 Water 7/17/2014 Fe-55 597.6 10.3 +/- 363.3 1000 SPW-4092 Water 8/13/2014 1-131(G) 3.59 0.91 +/- 1.95 20 SPW-4092 Water 8/13/2014 Cs-134 3.71 -0.31 +/- 1.77 10 SPW-4092 Water 8/13/2014 Cs-137 2.71 -2.20 +/- 1.98 10 SPW-4092 Water 8/13/2014 Sr-89 0.89 0.11 +/-0.63 5 SPW-4092 Water 8/13/2014 Sr-90 0.52 -0.05 +/- 0.23 1 SPMI-4094 Milk 8/13/2014 1-131 0.35 0.03 +/- 0.20 0.5 SPMI-4094 Milk 8/13/2014 1-131(G) 4.50 -0.41 +/- 2.44 20 SPMI-4094 Milk 8/13/2014 Cs-134 4.30 -0.84 +/- 2.02 10 SPMI-4094 Milk 8/13/2014 Cs-1 37 3.45 0.96 +/- 2.51 10 SPMI-4094 Milk 8/13/2014 Sr-89 0.80 -0.19 +/- 0.79 5 SPMI-4094 Milk 8/13/2014 Sr-90 0.47 0.71 +/- 0.30 1 SPW-4103 Water 8/13/2014 Ni-63 0.12 0.02 +/- 0.07 20 SPW-4105 Water 8/13/2014 H-3 138.1 104.1 +/- 78.1 200 SPW-4107 Water 8/13/2014 1-131(G) 3.21 -3.68 +/- 1.33 20 SPW-4107 Water 8/13/2014 Cs-134 2.72 -0.62 +/- 1.49 10 SPW-4107 Water 8/13/2014 Cs-137 2.56 0.75 +/- 1.62 10 SPAP-4109 Air Particulate 8/13/2014 Gr. Beta 0.004 -0.003 +/- 0.00 0.01 SPF-4111 Fish 8/13/2014 Cs-1 34 0.01 0.00 +/- 0.01 100 SPF-4 111 Fish 8/13/2014 Cs-137 0.01 -0.01 +/- 0.01 100 SPF-4 111 Fish 8/13/2014 Co-60 0.01 0.00 +/- 0.01 100 W-081614 Water 8/16/2014 Ra-226 0.04 0.05 +/- 0.03 1 W-082614 Water 8/16/2014 Ra-228 0.62 0.29 +/- 0.40 2 W-092314 Water 9/23/2014 Ra-226 0.02 0.04 +/- 0.02 1 W-5123 Water 9/29/2014 Ra-228 0.70 0.43 +/- 0.38 2 W-100714 Water 10/7/2014 Gr. Alpha 0.39 0.04 +/- 0.28 2 W-100714 Water 10/7/2014 Gr. Beta 0.76 -0.06 +/- 0.53 4 W-111014 Water 11/10/2014 Gr. Alpha 0.39 0.01 +/- 0.28 2 W-111014 Water 11/10/2014 Gr. Beta 0.75 -0.25 +/- 0.52 4 W-112514 Water 11/25/2014 Ra-226 0.05 0.02 +/- 0.03 2 W-120814 Water 12/8/2014 Gr. Alpha 0.42 0.04 +/- 0.30 2 W-120814 Water 12/8/2014 Gr. Beta 0.74 -0.42 +/- 0.51 4 SPW-7148 Water 12/26/2014 Ni-63 10.80 -1.80 +/- 6.50 20 3

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

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

c Activity reported is a net activity result.

A4-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)3 Averaged Lab Code Date Analysis First Result Second Result Result Acceptance AP-7829, 7830 1/2/2014 Be-7 0.08 +/- 0.02 0.06 +/- 0.01 0.07 +/- 0.01 Pass AP-7913, 7914 1/2/2014 Be-7 0.07 +/- 0.01 0.06 +/- 0.01 0.06 +/- 0.01 Pass AP-7871, 7872 1/3/2014 Be-7 0.05 +/- 0.02 0.06 +/- 0.01 0.06 +/- 0.01 Pass S-43, 44 1/9/2014 K-40 19.28 +/- 0.57 19.24 +/- 0.57 19.26 +/- 0.40 Pass SG-64, 65 1/9/2014 Gr. Alpha 686.08 +/- 69.97 642.46 +/- 65.59 664.27 +/- 47.95 Pass SG-64, 65 1/9/2014 Ra-226 97.30 +/- 9.78 92.20 +/- 9.27 94.75 +/- 6.74 Pass SG-64, 65 1/9/2014 Ra-228 91.90 +/- 9.30 97.10 +/- 9.87 94.50 +/- 6.78 Pass S-136, 137 1/13/2014 Be-7 14.90 +/- 0.39 14.88 +/- 0.38 14.89 +/- 0.27 Pass S-136, 137 1/13/2014 K-40 3.29 +/- 0.36 3.93 +/- 0.36 3.61 +/- 0.25 Pass WW-220, 221 1/13/2014 H-3 231.85 +/- 80.45 273.46 +/- 82.47 252.66 +/- 57.60 Pass WW-262, 263 1/21/2014 H-3 294.80 +/- 89.80 265.00 +/- 88.47 279.90 +/- 63.03 Pass WW-346, 347 1/24/2014 H-3 934.97 +/- 118.47 965.59 +/- 119.52 950.28 +/- 84.14 Pass SWU-367, 368 1/29/2014 Gr. Beta 0.74 +/- 0.38 1.31 +/- 0.42 1.02 +/- 0.28 Pass F-409, 410 2/2/2014 Cs- 137 0.05 +/- 0.02 0.05 +/- 0.02 0.05 +/- 0.01 Pass F-409, 410 2/2/2014 Gr. Beta 3.60 +/- 0.07 3.72 +/- 0.07 3.66 +/- 0.05 Pass AP-7829, 7830 1/2/2014 Be-7 0.08 +/- 0.02 0.06 +/- 0.01 0.07 +/- 0.01 Pass AP-7913, 7914 1/2/2014 Be-7 0.07 +/- 0.01 0.06 +/- 0.01 0.06 +/- 0.01 Pass AP-7871, 7872 1/312014 Be-7 0.05 +/- 0.02 0.06 +/- 0.01 0.06 +/- 0.01 Pass S-43, 44 119/2014 K-40 19.28 +/- 0.57 19.24 +/- 0.57 19.26 +/- 0.40 Pass SG-64, 65 1/9/2014 Gr. Alpha 686.08 +/- 69.97 642.46 +/- 65.59 664.27 +/- 47.95 Pass SG-64, 65 1/9/2014 Ra-226 97.30 +/- 9.78 92.20 +/- 9.27 94.75 +/- 6.74 Pass SG-64, 65 119/2014 Ra-228 91.90 +/- 9.30 97.10 +/- 9.87 94.50 +/- 6.78 Pass S-136, 137 1/13/2014 Be-7 14.90 +/- 0.39 14.88 +/- 0.38 14.89 +/- 0.27 Pass S-136, 137 1/13/2014 K-40 3.29 +/- 0.36 3.93 +/- 0.36 3.61 +/- 0.25 Pass WW-220, 221 1/13/2014 H-3 231.85 +/- 80.45 273.46 +/- 82.47 252.66 +/- 57.60 Pass WW-262, 263 1/21/2014 H-3 294.80 +/- 89.80 265.00 +/- 88.47 279.90 +/- 63.03 Pass WW-346, 347 1/24/2014 H-3 934.97 +/- 118.47 965.59 +/- 119.52 950.28 +/- 84.14 Pass SWU-367, 368 1/29/2014 Gr. Beta 0.74 +/- 0.38 1.31 +/- 0.42 1.02 +/- 0.28 Pass F-409, 410 2/2/2014 Cs- 137 0.05 +/- 0.02 0.05 +/- 0.02 0.05 +/- 0.01 Pass F-409, 410 2/2/2014 Gr. Beta 3.60 +/- 0.07 3.72 +/- 0.07 3.66 +/- 0.05 Pass WW-491, 492 2/6/2014 H-3 474.00 +/- 101.10 583.10 +/- 105.30 528.55 +/- 72.99 Pass WW-575, 576 2/13/2014 H-3 196.69 +/- 82.94 154.68 +/- 80.89 175.69 +/- 57.93 Pass W-617, 618 2/14/2014 H-3 526.29 +/- 97.65 579.51 +/- 99.77 552.90 +/- 69.80 Pass SWU-743, 744 2/25/2014 Gr. Beta 1.61 +/- 0.65 1.73 +/- 0.71 1.67 +/- 0.48 Pass S-700, 701 2/26/2014 K-40 21.32 +/- 0.64 21.15 +/- 0.59 21.24 +/- 0.44 Pass S-806, 807 3/4/2014 K-40 24.79 +/- 0.57 24.17 +/- 0.59 24.48 +/- 0.41 Pass SG-928, 929 3/11/2014 Ac-228 6.78 +/- 0.34 6.94 +/- 0.35 6.86 +/- 0.24 Pass SG-928, 929 3/11/2014 Bi-214 5.32 +/- 0.20 5.34 +/- 0.22 5.33 +/- 0.15 Pass SG-928, 929 3/11/2014 K-40 4.79 +/- 0.80 6.24 +/- 1.01 5.52 +/- 0.64 Pass SG-928, 929 3/11/2014 Pb-212 2.70 +/- 0.09 2.75 +/- 0.09 2.73 +/- 0.06 Pass SG-928, 929 3/11/2014 Pb-214 5.39 +/- 0.17 5.53 +/- 0.17 5.46 +/- 0.12 Pass SG-928, 929 3/11/2014 Th-228 6.10 +/- 2.07 4.76 +/- 1.93 5.43 +/- 1.42 Pass SG-928, 929 3/1112014 TI-208 0.92 +/- 0.06 0.91 +/- 0.06 0.92 +/- 0.04 Pass A5-1

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance S-2119, 2120 3/12/2014 Ac-228 0.76 +/- 0.20 0.73 +/- 0.21 0.75 +/- 0.15 Pass S-2119, 2120 3/12/2014 Cs- 137 0.13 +/- 0.05 0.11 +/-0.05 0.12 +/- 0.04 Pass S-2119, 2120 3/12/2014 K-40 17.48 +/- 1.48 18.39 +/- 1.53 17.94 +/- 1.06 Pass S-2119, 2120 3/12/2014 Pb-214 0.73 +/- 0.18 0.63 +/- 0.12 0.68 +/- 0.11 Pass F-1594, 1595 3/16/2014 Cs-1 37 0.02 +/- 0.01 0.03 +/- 0.02 0.03 +/- 0.01 Pass SO-1115, 1116 3/18/2014 Cs-137 0.06 +/- 0.01 0.06 +/- 0.00 0.06 +/- 0.00 Pass SO-1115, 1116 3/18/2014 Gr. Beta 23.30 +/- 2.10 24.40 +/- 2.20 23.85 +/- 1.52 Pass SO-1115, 1116 3/18/2014 K-40 12.63 +/- 0.18 12.84 +/- 0.15 12.74 +/- 0.12 Pass SO-1115, 1116 3/18/2014 U-233/4 0.11 +/-0.02 0.12 +/- 0.02 0.12 +/- 0.01 Pass SO-1115, 1116 3/18/2014 U-238 0.13 +/- 0.02 0.14 +/- 0.02 0.14 +/- 0.01 Pass S-1033, 1034 3/19/2014 Ac-228 0.99 +/- 0.20 1.13 +/- 0.26 1.06 +/- 0.16 Pass S-1033, 1034 3/19/2014 Bi-214 1.02 +/- 0.18 0.98 +/- 0.16 1.00 +/- 0.12 Pass S-1 033, 1034 3/19/2014 Cs- 137 0.15 +/- 0.04 0.14 +/- 0.04 0.15 +/- 0.03 Pass S-1033, 1034 3/19/2014 K-40 15.39 +/- 1.19 15.13 +/- 1.19 15.26 +/- 0.84 Pass S-1033, 1034 3/19/2014 Pb-214 1.09 +/- 0.13 0.88 +/- 0.17 0.99 +/- 0.11 Pass S-1033, 1034 3/19/2014 TI-208 0.36 +/- 0.05 0.31 +/- 0.05 0.34 +/- 0.04 Pass W-1094, 1095 3/23/2014 Ra-226 0.30 +/- 0.20 0.70 +/- 0.20 0.50 +/- 0.14 Pass W-1094, 1095 3/23/2014 Ra-228 1.10 +/- 0.79 1.13 +/- 0.86 1.12 +/- 0.58 Pass AP-1197, 1198 3/27/2014 Be-7 0.17 +/- 0.08 0.14 +/- 0.08 0.15 +/- 0.05 Pass AP-1698, 1699 3/31/2014 Be-7 0.06 +/- 0.02 0.07 +/- 0.02 0.07 +/- 0.01 Pass E-1218, 1219 4/11/2014 Gr. Beta 1.57 +/- 0.04 1.57 +/- 0.04 1.57 +/- 0.03 Pass E-1218, 1219 4/1/2014 K-40 1.26 +/- 0.14 1.31 +/- 0.18 1.29 +/- 0.11 Pass SWU-1260, 1261 4/1/2014 Gr. Beta 2.81 +/- 0.51 2.94 +/- 0.50 2.88 +/- 0.36 Pass AP-1615, 1616 4/1/2014 Be-7 0.07 +/- 0.01 0.07 +/- 0.02 0.07 +/- 0.01 Pass AP-1657, 1658 4/2/2014 Be-7 0.07 +/- 0.01 0.08 +/- 0.01 0.07 +/- 0.01 Pass AP-1 804, 1805 4/3/2014 Be-7 0.05 +/- 0.02 0.06 +/- 0.01 0.06 +/- 0.01 Pass P-1489, 1490 4/7/2014 H-3 582.31 +/- 101.85 505.07 +/- 98.72 543.69 +/- 70.92 Pass BS-1531, 1532 4/16/2014 K-40 0.51 +/- 0.19 0.58 +/- 0.23 0.54 +/- 0.15 Pass S-1909, 1910 4/22/2014 K-40 14.71 +/- 0.54 14.78 +/- 0.53 14.75 +/- 0.38 Pass SWU-1867, 1868 4/29/2014 Gr. Beta 2.28 +/- 0.40 1.67 +/- 0.35 1.98 +/- 0.27 Pass AP-1930, 1931 5/1/2014 Be-7 0.16 +/- 0.09 0.19 +/- 0.11 0.17 +/- 0.07 Pass SL-1888, 1889 5/1/2014 Be-7 0.80 +/- 0.04 0.76 +/- 0.08 0.78 +/- 0.05 Pass SL-1888, 1889 5/1/2014 Cs- 137 0.01 +/- 0.00 0.01 +/- 0.00 0.01 +/- 0.00 Pass SL-1888, 1889 5/11/2014 Gr. Beta 11.57 +/- 0.72 12.67 +/- 0.78 12.12 +/- 0.53 Pass SL-1888, 1889 5/1/2014 K-40 1.04 +/- 0.05 1.00 +/- 0.09 1.02 +/- 0.05 Pass SO-1972, 1973 5/1/2014 Cs- 137 0.12 +/- 0.03 0.10 +/-0.02 0.11 +/-0.02 Pass SO-1972, 1973 5/1/2014 Gr. Alpha 7.51 +/- 3.24 9.09 +/- 3.63 8.30 +/- 2.43 Pass SO-1972, 1973 5/1/2014 Gr. Beta 29.89 +/- 3.25 31.42 +/- 3.04 30.66 +/- 2.23 Pass SO-1972, 1973 5/1/2014 K-40 20.45 +/- 0.85 20.88 +/- 0.76 20.66 +/- 0.57 Pass W-617, 618 5/8/2014 H-3 175.13 +/-83.82 177.17 +/- 83.92 176.15 +/- 59.31 Pass AP-2077, 2078 5/8/2014 Be-7 0.23 +/- 0.11 0.18 +/- 0.11 0.20 +/- 0.08 Pass A5-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance S-2205,2206 5/15/2014 Be-7 0.50 +/- 0.19 0.70 +/- 0.18 0.60 +/- 0.13 Pass S-2205, 2206 5/15/2014 K-40 33.60 +/- 0.79 33.52 +/- 0.70 33.56 +/- 0.53 Pass VE-2184, 2185 5/19/2014 Be-7 0.62 +/- 0.18 0.53 +/- 0.17 0.58 +/- 0.12 Pass VE-2184, 2185 5/19/2014 K-40 5.30 +/- 0.44 5.14 +/- 0.44 5.22 +/- 0.31 Pass DW-50102, 50103 5/20/2014 Ra-226 7.07 +/- 0.76 8.31 +/- 0.90 7.69 +/- 0.59 Pass DW-50102, 50103 5(2012014 Ra-228 5.44 +/- 0.85 6.02 +/- 0.67 5.73 +/- 0.54 Pass SW-2226,2227 5/21/2014 H-3 14318.00 +/- 347.00 14350.00 +/- 347.00 14334.00 +/- 245.37 Pass DW-50087, 50088 5/21/2014 Gr. Alpha 1.76 +/- 1.09 2.67 +/- 1.01 2.22 +/- 0.74 Pass DW-50090, 50091 5/21/2014 Ra-226 0.61 +/- 0.09 0.47 +/- 0.09 0.54 +/- 0.06 Pass DW-50090, 50091 5/21/2014 Ra-228 0.97 +/- 0.41 1.26 +/- 0.52 1.12 +/- 0.33 Pass DW-50098, 50099 5/21/2014 Gr. Alpha 13.04 +/- 1.36 10.76 +/- 1.26 11.90 +/- 0.93 Pass AP-2289, 2290 5/22/2014 Be-7 0.14 +/- 0.08 0.24 +/- 0.10 0.19 +/- 0.06 Pass PM-3174, 3175 5/28/2014 K-40 30.68 +/- 1.30 32.64 +/- 1.24 31.66 +/- 0.90 Pass G-2415,2416 6/2/2014 Be-7 0.73 +/- 0.16 0.62 +/- 0.28 0.68 +/- 0.16 Pass G-2415,2416 6/2/2014 Gr. Beta 5.89 +/- 0.09 5.90 +/- 0.09 5.89 +/- 0.06 Pass G-2415,2416 6/2/2014 K-40 5.30 +/- 0.49 5.19 +/- 0.65 5.25 +/- 0.41 Pass WW-2541, 2542 6/4/2014 H-3 5107.00 +/- 223.00 5029.00 +/- 222.00 5068.00 +/- 157.33 Pass SW-2817, 2818 6/16/2014 H-3 13303.00 +/- 336.00 13130.00 +/- 334.00 13216.50 +/- 236.88 Pass SS-2943,2944 6/24/2014 K-40 11.49 +/- 0.79 11.81 +/- 0.70 11.65 +/- 0.53 Pass S-3048, 3049 6/27/2014 K-40 42.51 +/- 1.31 40.04 +/- 1.39 41.28 +/- 0.95 Pass SWT-3216, 3217 7/1/2014 Gr. Beta 2.27 +/- 0.94 2.53 +/- 1.05 2.40 +/- 0.70 Pass AP-3699,3700 7/3/2014 Be-7 0.06 +/- 0.01 0.07 +/- 0.02 0.07 +/- 0.01 Pass S-3300,3301 7/8/2014 K-40 4.85 +/- 0.97 5.91 +/- 1.17 5.38 +/- 0.76 Pass S-3300,3301 7/8/2014 Ac-228 10.23 +/- 0.43 10.18 +/- 0.32 10.21 +/- 0.27 Pass S-3300, 3301 7/8/2014 Ra-226 70.14 +/- 2.37 72.01 +/- 2.38 71.08 +/- 1.68 Pass VE-3237,3238 7/8/2014 K-40 2.54 +/- 0.27 2.63 +/- 0.24 2.59 +/- 0.18 Pass CF-3384,3385 7/14/2014 K-40 11.10 +/- 0.58 10.69 +/- 0.60 10.90 +/- 0.42 Pass S-3447,3448 7/16/2014 K-40 19.63 +/- 0.64 21.03 +/- 0.96 20.33 +/- 0.58 Pass WW-3573,3574 7/18/2014 H-3 381.58 +/- 85.76 401.30 +/- 86.67 391.44 +/- 60.96 Pass VE-3594,3595 7/22/2014 K-40 3.04 +/- 0.19 3.21 +/- 0.15 3.13 +/- 0.12 Pass WW-3762,3763 7/25/2014 H-3 315.47 +/- 87.02 327.30 +/- 87.56 321.39 +/- 61.72 Pass SWT-3867, 3868 7/29/2014 Gr. Beta 1.10 +/- 0.53 1.51 +/- 0.58 1.31 +/- 0.39 Pass S-3804, 3805 7/30/2014 Ac-228 0.67 +/- 0.11 0.61 +/- 0.10 0.64 +/- 0.07 Pass S-3804,3805 7/30/2014 Pb-214 0.56 +/- 0.05 0.51 +/- 0.04 0.54 +/- 0.03 Pass LW-3931, 3932 7/31/2014 Gr. Beta 1.04 +/- 0.40 0.95 +/- 0.41 1.00 +/- 0.29 Pass A5-3

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance G-3952,3953 8/4/2014 K-40 5.42 +/- 0.42 5.35 +/- 0.34 5.38 +/- 0.27 Pass G-3952,3953 814/2014 Be-7 1.29 +/-0.19 1.24 +/- 0.16 1.27 +/- 0.13 Pass G-3952,3953 8/4/2014 Gr. Beta 8.53 +/- 0.20 8.63 +/- 0.20 8.58 +/- 0.14 Pass G-3952,3953 8/4/2014 H-3 140.16 +/- 93.50 127.25 +/- 92.99 133.70 +/- 65.94 Pass WW-4036, 4037 8/5/2014 H-3 190.60 +/- 82.60 164.70 +/- 81.30 177.65 +/- 57.95 Pass VE-4204,4205 8/11/2014 K-40 6.28 +/- 0.38 6.60 +/- 0.37 6.44 +/- 0.27 Pass WW-4394,4395 8/13/2014 H-3 1540.26 +/- 136.52 1499.15 +/- 135.43 1519.71 +/- 96.15 Pass VE-4183,4184 8/14/2014 K-40 5.70 +/- 0.41 5.73 +/- 0.34 5.72 +/- 0.27 Pass AV-4455, 4456 8/22/2014 Be-7 286.67 +/- 102.30 251.99 +/- 98.94 269.33 +/- 71.16 Pass AV-4455, 4456 8/22/2014 K-40 2547.90 +/- 255.70 2201.40 +/- 203.90 2374.65 +/- 163.52 Pass WW-4500, 4501 8/26/2014 H-3 347.00 +/- 100.00 321.00 +/- 98.00 334.00 +/- 70.01 Pass AP-090214A/B 9/2/2014 Gr. Beta 0.03 +/- 0.04 0.03 +/- 0.04 0.03 +/- 0.00 Pass SG-5089, 5090 9/19/2014 Ac-228 8.26 +/- 0.63 9.48 +/- 0.68 8.87 +/- 0.46 Pass SG-5089, 5090 9/19/2014 Bi-214 4.71 +/- 0.29 4.41 +/- 0.31 4.56 +/- 0.21 Pass SG-5194,5 10/1/2014 Gr. Alpha 276.20 +/- 9.51 258.60 +/- 9.26 267.40 +/- 6.64 Pass SG-5194,5 10/1/2014 Pb-214 43.56 +/- 0.73 43.94 +/- 0.78 43.75 +/- 0.53 Pass SG-5194,5 10/1/2014 Ac-228 59.90 +/- 1.37 62.80 +/- 1.73 61.35 +/- 1.10 Pass S-5632,3 10/8/2014 K-40 19.28 +/- 0.88 17.94 +/- 0.89 18.61 +/- 0.63 Pass S-5632,3 10/8/2014 Cs-137 0.15 +/- 0.03 0.13 +/- 0.03 0.14 +/- 0.02 Pass S-5632,3 10/8/2014 TI-208 0.32 +/- 0.03 0.34 +/- 0.03 0.33 +/- 0.02 Pass S-5632,3 10/8/2014 Pb-212 0.92 +/- 0.05 0.92 +/- 0.05 0.92 +/- 0.03 Pass S-5632,3 10/8/2014 Pb-214 1.25 +/- 0.08 1.09 +/- 0.09 1.17 +/- 0.06 Pass S-5632,3 10/8/2014 Bi-212 1.25 +/- 0.29 1.34 +/- 0.47 1.29 +/- 0.27 Pass S-5632,3 10/8/2014 Ac-228 1.08 +/- 0.14 1.10 +/- 0.14 1.09 +/- 0.10 Pass DW-50243,4 10/13/2014 Gr. Alpha 2.99 +/- 0.94 4.98 +/- 1.17 3.99 +/- 0.75 Pass AP-101414A/B 10/14/2014 Gr. Beta 0.02 +/- 0.00 0.02 +/- 0.00 0.02 +/- 0.00 Pass SG-5590,1 10/15/2014 Pb-214 80.30 +/- 8.08 73.40 +/- 7.51 76.85 +/- 5.52 Pass SG-5590,1 10/15/2014 Ac-228 64.50 +/- 1.87 62.80 +/- 1.15 63.65 +/- 1.10 Pass DW-50251,2 10/16/2014 Ra-226 0.55 +/- 0.13 0.32 +/- 0.10 0.44 +/- 0.08 Pass U-5842,3 10/20/2014 H-3 7376 +/- 949 7342 +/- 947 7359 +/- 670 Pass CF-6074,5 10/21/2014 H-3 7509 +/-283 7969 +/- 291 7739 +/- 203 Pass CF-6074,5 10/21/2014 K-40 3.09 +/- 0.31 3.30 +/- 0.38 3.20 +/- 0.25 Pass A5-4

TABLE A-5. In-House "Duplicate" Samples Concentration (pCj/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance VE-6269,70 11/3/2014 K-40 6.25 +/- 0.54 6.56 +/- 0.49 6.41 +/- 0.36 Pass VE-6269,70 11/3/2014 Be-7 0.81 +/- 0.28 0.74 +/- 0.18 0.77 +/- 0.17 Pass SO-6500,1 11/5/2014 Sr-90 0.07 +/- 0.03 0.07 +/- 0.02 0.07 +/- 0.02 Pass SO-6500,1 11/5/2014 Gr. Alpha 11.77 +/- 1.73 12.18 +/- 1.62 11.98 +/- 1.19 Pass SO-6500,1 11/5/2014 Gr. Beta 26.69 +/- 1.62 24.19 +/- 1.13 25.44 +/- 0.99 Pass SO-6500,1 11/5/2014 U-233/4 0.14 +/- 0.04 0.14 + 0.05 0.14 +/- 0.03 Pass SO-6500,1 11/5/2014 U-238 0.18 +/- 0.05 0.13 +/-0.04 0.15 +/- 0.03 Pass SO-6500,1 11/5/2014 Th-228 0.47 +/- 0.11 0.34 +/- 0.06 0.41 +/- 0.06 Pass SO-6500,1 11/5/2014 Th-230 0.38 +/- 0.07 0.29 +/- 0.05 0.34 +/- 0.04 Pass SO-6500,1 11/5/2014 Th-232 0.41 +/- 0.08 0.41 +/- 0.06 0.41 +/- 0.05 Pass SO-6500,1 11/5/2014 Bi-214 0.75 +/- 0.02 0.78 +/- 0.02 0.77 +/- 0.01 Pass SO-6500,1 11/5/2014 Pb-214 0.78 +/- 0.08 0.86 +/- 0.09 0.82 +/- 0.06 Pass SO-6500,1 11/5/2014 Ac-228 1.02 +/- 0.11 1.13 +/- 0.13 1.08 +/- 0.09 Pass SO-6500,1 11/5/2014 Cs- 137 0.40 +/- 0.01 0.39 +/- 0.01 0.39 +/- 0.01 Pass DW-50262,3 11/10/2014 Gr. Alpha 8.95 +/- 1.26 7.84 +/- 1.24 8.40 +/- 0.88 Pass DW-50264,5 11/10/2014 Ra-226 3.89 +/- 0.24 3.71 +/- 0.20 3.80 +/- 0.16 Pass DW-50264,5 11/10/2014 Ra-228 2.96 +/- 0.63 2.33 +/- 0.59 2.65 +/- 0.43 Pass AP-120214A/B 12/2/2014 Gr. Beta 0.03 +/- 0.00 0.03 +/- 0.00 0.03 +/- 0.00 Pass AP-1 20814A/B 12/8/2014 Gr. Beta 0.03 +/- 0.01 0.03 +/- 0.01 0.03 +/- 0.00 Pass SG-7068,9 12/19/2014 Pb-214 4.27 +/- 0.23 4.38 +/- 0.33 4.33 +/- 0.20 Pass SG-7068,9 12/19/2014 Ac-228 2.72 +/- 0.36 3.27 +/- 0.49 3.00 +/- 0.30 Pass S-7152,3 12/25/2014 K-40 20.83 +/- 0.88 20.16 +/- 0.62 20.49 +/- 0.54 Pass A5-5

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

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-1140 2/1/2014 Gr. Alpha 0.77 +/- 0.06 0.85 0.26 -1.44 Pass MAW-1 140 2/1/2014 Gr. Beta 4.31 +/- 0.08 4.19 2.10 -6.29 Pass MAW-1142 2/1/2014 1-129 -0.01 +/- 8.00 0.00 NA Pass MAW-i 184 2/1/2014 Fe-55 0.40 +/- 3.20 0.00 -0.01 - 2.00 Pass MAW-1184 2/1/2014 H-3 345.10 +/- 10.60 321.00 225.00 - 417.00 Pass MAW-1 184 2/1/2014 Ni-63 32.40 +/- 3.20 34.00 23.80 - 44.20 Pass MAW-i 184 e 2/1/2014 Pu-238 1.28 +/- 0.12 0.83 0.58 - 1.08 Fail MAW-1184 2/1/2014 Pu-239/240 0.91 +/- 0.10 0.68 0.47 - 0.88 Fail MAW-1184 2/1/2014 Sr-90 7.00 +/- 0.70 8.51 5.96-11.06 Pass MAW-1184 2/1/2014 Tc-99 8.10 +/- 0.60 10.30 7.20 - 13.40 Pass MAW-i 184 2/1/2014 U-233/234 0.20 +/- 0.07 0.23 0.16 -0.29 Pass MAW-1184 2/112014 U-238 1.25 +/- 0.18 1.45 1.02-1.89 Pass MAW-1 184 2/1/2014 Co-57 27.86 +/- 0.38 27.50 19.30 - 35.80 Pass MAW-1184 2/1/2014 Co-60 15.99 +/- 0.27 16.00 11.20 - 20.80 Pass MAW-1184 2/1/2014 Cs-134 21.85 +/- 0.54 23.10 16.20 - 30.00 Pass MAW-1184 2/1/2014 Cs-137 28.74 +/- 0.49 28.90 20.20 - 37.60 Pass MAW-1 184 2/1/2014 K-40 1.80 +/- 2.00 0.00 0.00 - 10.00 Pass MAW-1 184 2/1/2014 Mn-54 14.06 +/- 0.40 13.90 9.70 - 18.10 Pass MAW-1184 2/1/2014 Zn-65 0.00 +/- 0.19 0.00 -0.01 - 0.00 Pass MAVE-1 148 2/1/2014 Co-57 11.63 +/- 0.19 10.10 7.10 - 13.10 Pass MAVE-1 148 2/1/2014 Co-60 7.28 +/- 0.18 6.93 4.85 - 9.01 Pass MAVE-1 148 2/1/2014 Cs-134 6.29 +/- 0.29 6.04 4.23 - 7.85 Pass MAVE-1 148 2/1/2014 Cs-137 5.18 +/- 0.20 4.74 3.32 -6.16 Pass MAVE-1 148 2/1/2014 Mn-54 9.22 +/- 0.26 8.62 6.03-11.21 Pass MAVE-1 148 2/1/2014 Zn-65 8.59 +/- 0.40 7.86 5.50 - 10.22 Pass MAAP-1 151 2/1/2014 Am-241 0.09 +/- 0.02 0.09 0.06 -0.12 Pass MAAP-1151 d 2/1/2014 Co-57 1.60 +/- 0.05 0.00 NA Fail MAAP-1 151 2/1/2014 Co-60 1.38 +/- 0.08 1.39 0.97 - 1.81 Pass MAAP-1 151 2/112014 Cs-134 1.75 +/- 0.11 1.91 1.34 -2.48 Pass MAAP-1 151 2/1/2014 Cs-137 1.81 +/- 0.10 1.76 1.23 -2.29 Pass MAAP-1151 2/1/2014 Mn-54 0.01 +/- 0.03 0.00 NA Pass MAAP-1151 211/2014 Pu-238 0.08 +/- 0.02 0.00 NA Fail MAAP-1 151 2/1/2014 Pu-239/240 0.10 +/- 0.02 0.08 0.05 -0.10 Pass MAAP-1151 2/1/2014 Zn-65 -0.24 +/- 0.09 0.00 -0.50 -1.00 Pass A6-1

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

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAAP-1 151 2/1/2014 U-233/234 0.03 +/- 0.01 0.02 0.01 - 0.03 Pass MAAP-1151 2/1/2014 U-238 0.13 +/- 0.02 0.13 0.09 -0.17 Pass MAAP-1 151 2/1/2014 Sr-90 1.11 +/-0.14 1.18 0.83 - 1.53 Pass MAAP-1 154 2/1/2014 Gr. Alpha 0.56 +/- 0.06 1.77 0.53 - 3.01 Pass MAAP-1 154 2/1/2014 Gr. Beta 0.98 +/- 0.06 0.77 0.39 -1.16 Pass MASO-1 146 2/1/2014 Co-57 1064.50 +/- 3.60 966.00 676.00 - 1256.00 Pass MASO-1146 2/1/2014 Co-60 1.70 +/- 0.50 1.22 NA d Pass MASO-1 146' 2/1/2014 Cs-134 6.10 +/- 1.80 0.00 NA Fail MASO-1 146 2/1/2014 Cs-137 1364.30 +/- 5.30 1238.00 867.00 - 1609.00 Pass MASO-1 146 2/1/2014 K-40 728.90 +/- 15.90 622.00 435.00 - 809.00 Pass MASO-1 146 2/1/2014 Mn-54 1588.00 +/- 6.00 1430.00 1001.00 - 1859.00 Pass MASO-1 146 2/1/2014 Zn-65 763.50 +/- 6.80 695.00 487.00 - 904.00 Pass MASO-1 146 2/1/2014 Am-241 68.20 +/- 9.00 68.00 47.60 - 88.40 Pass MASO-1 146 2/1/2014 Ni-63 4.80 +/- 15.30 0.00 NA Pass MASO-1 146 e 2/1/2014 Pu-238 140.60 +/- 15.50 96.00 67.00 - 125.00 Fail MASO-1 146 e 2/1/2014 Pu-239/240 102.00 +/- 13.10 76.80 53.80 - 99.80 Fail MASO-1 146 2/1/2014 Sr-90 1.23 +/- 1.37 0.00 NA Pass MASO-1 146 2/1/2014 Tc-99 -0.30 +/- 12.00 0.00 NA Pass MASO-1 146 g 2/1/2014 U-233/234 22.90 +/- 3.00 81.00 57.00 - 105.00 Fail MASO-11469 2/1/2014 U-238 32.00 +/- 3.60 83.00 58.00 - 108.00 Fail MASO-4439 8/1/2014 Am-241 65.90 +/- 6.70 85.50 59.90 - 111.20 Pass MASO-4439 8/1/2014 Ni-63 771.62 +/- 23.29 980.00 686.00 - 1274.00 Pass MASO-4439 8/1/2014 Pu-239/240 55.63 +/- 5.81 58.60 41.00 - 76.20 Pass MASO-4439 8/1/2014 Sr-90 778.34 +/- 17.82 858.00 601.00 - 1115.00 Pass MASO-4439 8/1/2014 Tc-99 458.20 +/- 9.20 589.00 412.00 - 766.00 Pass MASO-4439 8/1/2014 Cs-134 520.60 +/- 7.09 622.00 435.00 - 809.00 Pass MASO-4439 8/1/2014 Co-57 1135.00 +/- 7.40 1116.00 781.00 - 1451.00 Pass MASO-4439 8/1/2014 Co-60 768.20 +/- 7.70 779.00 545.00 - 1013.00 Pass MASO-4439 8/112014 Mn-54 1050.70 +/- 12.60 1009.00 706.00 - 1312.00 Pass MASO-4439 8/1/2014 Zn-65 407.89 +/- 15.03 541.00 379.00 - 703.00 Pass MAW-4431 8/1/2014 Am-241 0.79 +/- 0.08 0.88 0.62 -1.14 Pass MAW-4431 8/1/2014 Cs-137 18.62 +/- 0.54 18.40 12.90 - 23.90 Pass MAW-4431 8/1/2014 Co-57 24.85 +/- 0.42 24.70 17.30 - 32.10 Pass MAW-4431 8/1/2014 Co-60 12.27 +/- 0.38 12.40 8.70 - 16.10 Pass MAW-4431 8/1/2014 H-3 207.20 +/- 10.60 208.00 146.00 - 270.00 Pass h

MAW-4431 8/1/2014 Fe-55 55.10 +/- 14.80 31.50 22.10 - 41.00 Fail MAW-4431 8/1/2014 Mn-54 14.36 +/- 0.53 14.00 9.80 - 18.20 Pass MAW-4431 81112014 Zn-65 11.46 +/- 0.78 10.90 7.60 - 14.20 Pass A6-2

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

Concentration a Known Control Lab Code b Date Analysis Laboratory result Activity Limits c Acceptance MAW-4431 8/1/2014 Tc-99 6.10 t 0.50 6.99 4.89 - 9.09 Pass MAW-4431 8/1/2014 Pu-238 0.59 +/- 0.07 0.62 0.43 -0.80 Pass MAW-4431 8/1/2014 U-233/234 0.22 +/- 0.04 0.21 0.14 -0.27 Pass MAW-4431 8/1/2014 U-238 1.25 +/- 0.10 1.42 0.99 - 1.85 Pass MAW-4493 8/1/2014 Gr. Alpha 0.93 +/- 0.07 1.40 0.42 -2.38 Pass MAW-4493 8/1/2014 Gr. Beta 6,31 +/- 1.35 6.50 3.25 -9.75 Pass MAAP-4433 8/1/2014 Am-241 0.06 +/- 0.02 0.07 0.05 - 0.09 Pass MAAP-4433 8/1/2014 Pu-238 0.10 +/- 0.03 0.11 0.08 - 0.14 Pass MAAP-4433 8/1/2014 Pu-239/240 0.04 +/- 0.02 0.05 0.03 - 0.06 Pass MAAP-4433 8/1/2014 Sr-90 0.74 +/- 0.10 0.70 0.49 - 0.91 Pass MAAP-4433 8/1/2014 U-233/234 0.03 +/- 0.01 0.04 0.03 - 0.05 Pass MAAP-4433 8/1/2014 U-238 0.21 +/- 0.03 0.25 0.18 -0.33 Pass MAAP-4444 8/1/2014 Sr-89 7.82 +/- 0.52 9.40 6.60 - 12.20 Pass MAAP-4444 8/1/2014 Sr-90 0.76 +/- 0.10 0.76 0.53 - 0.99 Pass MAVE-4436 8/1/2014 Cs-134 7.49 +/- 0.18 7.38 5.17 -9.59 Pass MAVE-4436 8/1/2014 Co-57 11.20 +/- 0.19 9.20 6.40-12.00 Pass MAVE-4436 8/1/2014 Co-60 6.84 +/- 0.17 6.11 4.28 -7.94 Pass MAVE-4436 8/1/2014 Mn-54 8.11 +/- 0.26 7.11 4.97 -9.23 Pass MAVE-4436 8/1/2014 Zn-65 7.76 +/- 0.43 6.42 4.49 - 8.35 Pass a Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

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

cMAPEP 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 inthe testing series as a "false positive". MAPEP does not provide control limits.

d Interference from Eu-152 resulted in misidentification of Co-57.

The high bias on the plutonium crosscheck samples was traced to contamination from a newly purchased standard.

The results of reanalysis with replacement tracer purchased from NIST:

MAW-1184 Pu-238 0.68 +/-0.10 Bq/L MAW-1184 Pu-2391240 0.66 +/- 0.10 Bq I L MASO-1146 Pu-238 95.15 +/- 8.98 Bq / kg MASO-1 146 Pu-239/240 67.21 +/- 7.54 Bq / kg Insufficient sample remained to reanalyze the Air filter sample(MAAP-1 151). High bias results due to same contaminated tracer.

fCs-1 34 was positively identified in both library peaks, calculation on the second peak; 2.78 +/- 0.93 Bq/kg.

9 80% of participating laboratories were outside the acceptable range.

Parallel reanalysis was run on ERA spiked sample with acceptable results.

Result of reanalysis Fe-55 32.63 +/- 16.30 Bq / L A6-3

TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L) b Lab Code b Date Analysis Laboratory ERA Control Result - Result d Limits Acceptance ERAP-1044 3/17/2014 Am-241 54.2 +/- 3.0 59.7 36.8 - 80.8 Pass ERAP-1044 3/17/2014 Co-60 1177.9 +/- 14.3 1120.0 867.0 - 1400.0 Pass ERAP-1 044 3/17/2014 Cs-134 1010.5 +/- 15.8 1010.0 643.0 - 1250.0 Pass ERAP-1044 3/17/2014 Cs-137 938.3 +/- 45.7 828.0 622.0 - 1090.0 Pass ERAP-1044 3/17/2014 Fe-55 142.3 +/- 87.3 240.0 74.4 - 469.0 Pass ERAP-1044 3/17/2014 Gr. Alpha 52.3 +/- 0.5 46.0 15.4 -71.4 Pass ERAP-1044 3/17/2014 Gr. Beta 64.4 +/- 2.6 53.8 34.0 - 78.4 Pass ERAP-1044 3/17/2014 Mn-54 <4.9 0.0 NA Pass ERAP-1044 3/17/2014 Pu-238 63.0 +/- 2.6 56.3 38.6 - 74.0 Pass ERAP-1044 3/17/2014 Pu-239/240 52.8 +/- 1.9 48.6 35.2 - 63.5 Pass ERAP-1044 3/17/2014 Sr-90 81.4 +/- 1.6 78.9 38.6-118.0 Pass ERAP-1044 3/17/2014 U-233/234 30.4 +/- 1.7 36.4 22.6 - 54.9 Pass ERAP-1044 3/17/2014 U-238 30.4 +/- 1.4 36.1 23.3 - 49.9 Pass ERAP-1044 3/17/2014 Uranium 62.0 +/- 3.5 74.3 41.1 -113.0 Pass ERAP-1044 3/1712014 Zn-65 852.2 +/- 26.1 667.0 478.0 - 921.0 Pass ERSO-1 050 3/17/2014 Am-241 426.6 +/- 155.5 399.0 233.0 - 518.0 Pass ERSO-1050 3/17/2014 Ac-228 1260.0 +/- 107.0 1240.0 795.0 - 1720.0 Pass ERSO-1050 3/17/2014 Bi-212 1331.9 +/- 309.7 1240.0 330.0 - 1820.0 Pass ERSO-1050 3/17/2014 Bi-214 1804.5 +/- 50.4 1960.0 1180.0 - 2820.0 Pass ERSO-1050 3/17/2014 Co-60 6738.8 +/- 167.6 6830.0 4620.0 - 9400.0 Pass ERSO-1050 3/17/2014 Cs-134 3262.9 +/- 108.8 3390.0 2220.0 - 4070.0 Pass ERSO-1050 3/17/2014 Cs-137 8538.6 +/- 55.0 8490.0 6510.0 - 10900.0 Pass ERSO-1050 3/17/2014 K-40 11241.3 +/- 296.6 10500.0 7660.0 - 14100.0 Pass ERSO-1050 3/17/2014 Mn-54 < 21.6 0.0 NA Pass ERSO-1050 3/17/2014 Pb-212 1119.6 +/-26.1 1240.0 812.0 - 1730.0 Pass ERSO-1050 3/17/2014 Pb-214 1861.7 +/- 54.9 2070.0 1210.0 - 3090.0 Pass ERSO-1050 3/17/2014 Pu-238 1085.5 +/- 167.7 578.0 348.0 - 797.0 Fail ERSO-1050 e 3/17/2014 Pu-239/240 681.6 +/- 128.6 471.0 308.0 - 651.0 Fail ERSO-1050 3/17/2014 Sr-90 2338.0 +/- 144.0 2780.0 1060.0 - 4390.0 Pass ERSO-1050 3/17/2014 Th-234 3474.9 +/- 226.0 3360.0 1060.0 - 6320.0 Pass ERSO-1050 3/17/2014 U-233/234 3319.5 +/- 250.2 2780.0 1060.0 - 4390.0 Pass ERSO-1050 3/17/2014 U-238 3375.6 +/- 252.6 3360.0 2080.0 - 4260.0 Pass ERSO-1050 3/17/2014 Uranium 6810.6 +/- 551.1 6910.0 3750.0 - 9120.0 Pass ERSO-1050 3/17/2014 Zn-65 5968.0 +/- 226.1 5400.0 4300.0 - 7180.0 Pass A7-1

TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.

Concentration (pCi/L) b Lab Code b Date Analysis Laboratory ERA Control Result c Result d Limits Acceptance ERVE-1051 3/17/2014 Am-241 1532.0 +/- 149.5 1490.0 911.0 - 1980.0 Pass ERVE-1051 3/17/2014 Cm-244 519.8 +/- 94.6 516.0 253.0 - 804.0 Pass ERVE-1051 3/17/2014 Co-60 981.2 +/- 41.8 926.0 639.0 - 1290.0 Pass ERVE-1051 3/17/2014 Cs-134 701.4 +/- 58.6 646.0 415.0 - 839.0 Pass ERVE-1051 3/17/2014 Cs-1 37 961.9 +/- 46.3 880.0 638.0 - 1220.0 Pass ERVE-1051 3/17/2014 K-40 32789.7 +/- 758.2 31900.0 23000.0 - 44800.0 Pass ERVE-1051 3/17/2014 Mn-54 < 25.9 0.0 NA Pass ERVE-1051 3/17/2014 Pu-238 2724.1 +/- 259.4 2110.0 1260.0 - 2890.0 Pass ERVE-1051 3/17/2014 Pu-239/240 4361.4 +/- 323.4 3740.0 2300.0 - 5150.0 Pass ERVE-1051 3/17/2014 Sr-90 2405.7 +/- 263.2 2580.0 1470.0 - 3420.0 Pass ERVE-1051 3117/2014 U-233/234 1612.2 +/- 162.0 1760.0 1160.0 - 2260.0 Pass ERVE-1051 3/17/2014 U-238 1574.3 +/- 159.6 1750.0 1170.0 - 2220.0 Pass ERVE-1051 3/17/2014 Uranium 3255.4 +/- 356.7 3580.0 2430.0 - 4460.0 Pass ERVE-1051 3/17/2014 Zn-65 1124.1 +/- 101.2 919.0 663.0 - 1290.0 Pass ERW-1054 3/17/2014 Am-241 104.6 +/- 3.4 114.0 76.8 - 153.0 Pass ERW-1054 3/17/2014 Co-60 1195.2 +/- 18.9 1270.0 1100.0 - 1490.0 Pass ERW-1054 3/17/2014 Cs-134 1474.9 +/- 47.5 1660.0 1220.0 - 1910.0 Pass ERW-1054 3/17/2014 Cs-1 37 2591.0 +/- 23.4 2690.0 2280.0 - 3220.0 Pass ERW-1054 3/17/2014 Mn-54 <4.3 0.0 NA Pass ERW-1 054 3/17/2014 Pu-238 54.1 +/-3.6 44.1 32.6 - 54.9 Pass ERW-1054 3/17/2014 Pu-239/240 185.9 +/- 17.6 160.0 124.0 - 202.0 Pass ERW-1054 3/17/2014 U-233/234 74.8 +/- 6.3 82.4 61.9 -106.0 Pass ERW-1054 3/17/2014 U-238 76.4 +/- 7.8 81.8 62.4 - 100.0 Pass ERW-1054 3/17/2014 Uranium 154.3 +/- 14.6 168.0 123.0 - 217.0 Pass ERW-1054 3/17/2014 Zn-65 1818.5 +/- 56.4 1800.0 1500.0 - 2270.0 Pass ERW-1055 3/17/2014 Fe-55 636.3 +/- 176.0 1200.0 716.0 - 1630.0 Fail ERW-1055 3/17/2014 Gr. Alpha 120.9 +/- 3.5 133.0 47.2 - 206.0 Pass ERW-1055 3/17/2014 Gr. Beta 141.6 +/- 2.3 174.0 99.6 - 258.0 Pass ERW-1055 3/17/2014 Sr-90 873.9 +/- 56.9 890.0 580.0 - 1180.0 Pass ERW-1060 3/17/2014 H-3 5818.0 +/- 230.0 5580.0 3740.0 - 7960.0 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 Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

d Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA. A known value of "zero" indicates an analysis was included in the testing series as a "false positive". Control limits are not provided.

e The high bias on the plutonium crosscheck samples was traced to contamination from a newly purchased standard.

The results of reanalysis with replacement tracer purchased from NIST:

ERSO-1050 Pu-238 634.7 +/- 98.50 Bq / kg ERSO-1050 Pu-239/240 451.8 +/- 82.80 Bq / kg f An error in the efficiency calculation was found. The result of recalculation was 932 pCi/L.

The sample was repeated, result of reanalysis, 1066 pCi/L.

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: Coffey County, Kansas Reporting Period: Annual 2014 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 (pCi/mi3 ) Gross Beta (318) 0.01 0.024 (265/265) 49 0.025 (53/53) 0.025 (53/53) 0 (0.009 - 0.047) 0.8 miles NNE (0.009 - 0.047) (0.012 - 0.046)

Gamma (24)

Be-7 - 0.070 (20/20) 2 0.072 (4/4) 0.073 (4/4) 0 (0.042 - 0.096) 2.7 miles N (0.043 - 0.092) (0.059 - 0.088)

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 - 18.3 (164/164) 47 23.9 (4/4) 18.2 (8/8) 0 90-day Qtr.) (172) (10.0 - 30.2) 0.16 miles S (17.8 - 30.2) (15.9- 19.4)

Surface Water JRR (pCi/I) Gamma (24) - (0/12) N/A N/A - (0/12) 0 Tritium (24) 3,000 11,663 (12/12) SP 11,663 (12/12) - (0/12) 0 (9,944-14,318) 3.2 miles SSE (9,944-14,318)

Fe-55 (8) - (0/4) N/A N/A - (0/4) 0 Ground Water B-12 (pCi/I) 1-131 (31) 1 - (0/27) N/A N/A - (0/4) 0 Gamma (31) -(0/27) N/A N/A - (0/4) 0 Tritium (31) 2,000 -(0/27) N/A N/A - (0/4) 0 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 2014 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 **

Drinking BW-1 5 Water 1-131 (24) 1 -(0/12) N/A N/A - (0/12) 0 (pCi/I)

Gross Beta (24) 4 2.9(12/12) IO-DW 2.9 (12/12) 2.2 (12/12) 0 (1.6-3.8) 26.1 miles SSE (1.6-3.8) (1.5-3.5)

Gamma (24) - (0/12) N/A N/A - (0/12) 0 Tritium (8) 2,000 -(0/4) N/A N/A - (0/4) 0 Shoreline Gamma (4) JRR Sediment (pCi/kg dry) K-40 7,142 (2/2) DC 7,142 (2/2) 12,099 (2/2) 0 (5,732 - 8,552) 0.9 miles WNW (5,732 - 8,552) (11,494 - 12,704)

Fish Gamma (21) JRR (pCi/kg wet)

K-40 3,116 (14114) CCL 3,116 (14/14) 3,298 (7/7) 0 (2,654 - 3,431) 0.6 miles E to (2,654 - 3,431) (3,029 - 3,677)

NNW Tritium (21) 8,594 (14/14) CCL 8,594 (14/14) - (0/7) 0 (6,166 - 10,500) 0.6 miles E to (6,166 - 10,500)

NNW Food and Gamma (26) D-2 Garden (pCi/kg wet) Be-7 608 (18/19) Q-6 879 (1/2) 733 (6/7) 0 (287-990) 2.4 miles NW (632-897)

K-40 - 5,901 (19/19) A-3 6,555 (1/1) 5,345 (7/7) 0 (3,834 - 8,401) 2.6 miles N (3,345 - 7,594)

Page B-3

• • Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (0

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 2014 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 **

NR-U1 Crops Gamma (4)

(pCi/kg wet)

K-40 7,666 (2/2) NR-D1 12,544 (1/1) 7,943 (2/2) 0 (2,788 - 12,544) 8.9 miles S (2,046- 13,841)

Bottom Gamma (17) JRR Sediment (pCi/kg dry)

K-40 12,416 (15/15) DC 13,421 (2/2) 17,273 (2/2) 0 (9,598 - 20,399) 0.9 miles WNW (12,932-13,910) (16,906- 17,639)

Co-60 33 (1/15) UHS 33(1/10) -(0/2) 0 0.6 miles E Cs-1 37 90(9/15) DC 124 (2/2) 126 (2/2) 0 (33-170) 0.9 miles WNW (118-130) (120-132)

Fe-55 (15) - (0/14) N/A N/A -(o/1) 0 HTD (7)

U-233/234 412 (6/6) ESW 488(1/1) 244(1/1) 0 (300-490) 0.5 miles E U-235 13(6/6) ESW 14(1/1) 11 (1/1) 0 (9- 17) 0.5 miles E U-238 358 (6/6) ESW 362 (1/1) 172 (1/1) 0 (281 -443) 0.5 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 2014 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 **

Aquatic Gamma (3) No Control Vegetation (pCi/kg wet) Be-7 299 (2/3) DC-ALT 311 (1/1) 0 (287-311) 1.5 miles NW K-40 2,479 (3/3) MUDS 2,548 (1/1) 0 (2,370 - 2,548) 1.5 miles WNW Terrestrial Gamma (3) No Control Vegetation (pCi/kg wet) Be-7 1,394 (3/3) MUDS 1,579 (2/2) 0 (1,022 - 1,612) 1.5 miles WNW (1,546 - 1,612)

K-40 5,264 (3/3) EEA 7,351 (1/1) 0 (4,016 - 7,351) 3.0 miles NNW Soil Gamma (1) No Control (pCi/kg dry)

K-40 - 10,533 (1/1) MUDS 10,533 (1/1) 0 1.5 miles WNW Cs-1 37 - 50(1/1) MUDS 50(1/1) 0 1.5 miles WNW Deer Gamma (1) No Control (pCi/kg wet)

K-40 - 2,554 (1/1) A1.0 2,554 (1/1) 0 1.0 miles N Tritium (1) - 1,251 (1/1) A1.0 1,251 (1/1) 0 1.0 miles N Page B-5

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

APPENDIX C INDIVIDUAL SAMPLE RESULTS 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station

Air Particulate and Charcoal Filters Location: 002 Collection Collection Volume Gross Beta 1-131 Duplicate 3

Start Date End Date m Concentration Concentration Analysis (pCi/m 3 ) (pCi/m 3 )

30-DEC-1 3 07-JAN- 14 353 0.031 +1- 0.004 < 0.008 07-JAN-14 13-JAN-14 251 0.022 +1- 0.005 < 0.012 13-JAN-14 20-JAN-14 307 0.013 +1- 0.004 Duplicate 13-JAN-14 20-JAN-14 307 0.014 +1- 0.004 0.011 20-JAN-14 27-JAN-14 277 0.017 +1- 0.004 0.011 27-JAN-14 03-FEB-14 291 0.017 +1- 0.004 0.022 03-FEB-14 10-FEB-14 305 0.024 +1- 0.004 0.011 10-FEB-14 17-FEB-14 283 0.032 +1- 0.005 0.007 17-FEB-14 24-FEB-14 301 0.013 +1- 0.004 0.007 24-FEB-14 04-MAR- 14 347 0.032 +1- 0.004 0.013 04-MAR-14 12-MAR-14 335 0.030 +1- 0.004 0.011 12-MAR-14 19-MAR-14 294 0.017 +1- 0.004 0.010 19-MAR-14 26-MAR- 14 306 0.020 +1- 0.004 0.014 26-MAR-14 02-APR-14 294 0.021 +1- 0.004 0.013 02-APR-14 09-APR-14 297 0.021 +1- 0.004 0.015 09-APR-14 16-APR-14 298 0.023 +1- 0.004 0.008 16-APR-14 24-APR-14 334 0.031 +1- 0.004 0.018 24-APR- 14 30-APR-14 266 0.021 +1- 0.004 0.015 30-APR-14 05-MAY-14 201 0.025 +1- 0.005 0.014 05-MAY- 14 13-MAY-14 351 0.028 +1- 0.004 0.011 13-MAY-14 19-MAY- 14 248 0.026 +1- 0.004 0.011 19-MAY-14 27-MAY-14 342 0.023 +1- 0.004 0.009 27-MAY-1 4 03-JUN-14 299 0.022 +1- 0.004 0.010 03-JUN-14 09-JUN-14 256 0.021 +1- 0.004 Duplicate 03-JUN-14 09-JUN-14 256 0.022 +1- 0.004 < 0.009 09-JUN-14 16-JUN-14 304 0.017 +1- 0.004 < 0.009 09-JUN-14 16-JUN-14 304 0.012 +1- 0.004 Duplicate 16-JUN-14 23-JUN-14 294 0.022 +1- 0.004 0.007 23-JUN-14 30-JUN-14 306 0.019 +1- 0.004 0.010 30-JUN-14 07-JUL-14 294 0.019 +1- 0.004 0.010 07-JUL-14 14-JUL-14 300 0.024 +1- 0.004 Duplicate 07-JUL-14 14-JUL-14 300 0.025 +1- 0.004 0.010 14-JUL-14 22-JUL-14 341 0.022 -i-I- 0.004 0.019 22-JUL-14 28-JUL-14 259 0.024 +1- 0.005 0.012 28-JUL-14 04-AUG-14 290 0.029 +1- 0.004 0.010 04-AUG-14 11-AUG-14 306 0.030 +1- 0.004 0.011 11-AUG-14 18-AUG-14 292 0.026 +1- 0.004 0.014 18-AUG-14 25-AUG-14 300 0.026 +1- 0.004 0.009 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - I

Air Particulate and Charcoal Filters Location: 002 Collection Collection Volume Gross Beta 1-131 Duplicate Start Date End Date m3 Concentration Concentration Analysis 3

(pCi/r w) (pCilm 3) 25-AUG-14 02-SEP-14 343 0.024 +1- 0.004 0.009 02-SEP-14 08-SEP-14 258 0.015 +1- 0.004 0.013 08-SEP-14 15-SEP-14 303 0.014 +1- 0.004 0.010 15-SEP-14 22-SEP-14 302 0.027 +1- 0.004 0.022 22-SEP-14 29-SEP-14 301 0.030 +1- 0.004 0.009 29-SEP-14 06-OCT-14 298 0.024 +1- 0.004 0.012 06-OCT-14 14-OCT-14 346 0.016 +1- 0.003 Duplicate 06-OCT-14 14-OCT-14 346 0.017 +1- 0.003 0.011 14-OCT-14 20-OCT-14 252 0.016 +1- 0.004 0.010 20-OCT-14 27-OCT-14 298 0.042 +1- 0.005 0.007 27-OCT-14 03-NOV-14 307 0.019 +1- 0.004 0.011 03-NOV-1 4 10-NOV-14 300 0.020 +1- 0.004 0.011 10-NOV-14 17-NOV-14 327 0.018 +1- 0.004 0.009 17-NOV-14 24-NOV-14 287 0.025 +1- 0.004 0.013 24-NOV-14 02-DEC-14 346 0.024 +1- 0.004 0.014 02-DEC-14 08-DEC-14 255 0.032 +1- 0.005 0.012 02-DEC-14 08-DEC-14 255 0.034 +1- 0.005 Duplicate 08-DEC-14 16-DEC-14 343 0.039 +1- 0.004 0.011 16-DEC-14 22-DEC-14 260 0.024 +1- 0.005 0.008 22-DEC-14 29-DEC-14 302 0.019 +1- 0.004 0.009 29-DEC-14 05-JAN-15 323 0.030 +1- 0.004 29-DEC-14 05-JAN-15 323 < 0.010 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 2

Air Particulate and Charcoal Filters Location: 018 Collection Collection Volume Gross Beta 1-131 Duplicate m3 Start Date End Date Concentration Concentration Analysis (pCi/m 3 ) (pCi/m 3 )

30-DEC-1 3 07-JAN-14 351 0.036 +/- 0.004 0.008 07-JAN- 14 13-JAN-14 253 0.021 +/- 0.005 0.012 13-JAN-14 20-JAN-14 311 0.018 +/- 0.004 0.011 20-JAN-14 27-JAN-14 308 0.019 +1- 0.004 0.010 27-JAN-14 03-FEB-14 301 0.019 +1- 0.004 0.021 03-FEB-14 10-FEB-14 304 0.025 +1- 0.004 0.011 10-FEB-14 17-FEB-14 293 0.028 +1- 0.004 0.007 17-FEB-1 4 24-FEB-14 304 0.016 +1- 0.004 0.006 17-FEB-14 24-FEB-14 304 0.018 +1- 0.004 Duplicate 24-FEB-14 04-MAR-14 351 0.033 +1- 0.004 Duplicate 24-FEB-14 04-MAR-14 351 0.032 +1- 0.004 0.010 04-MAR-14 12-MAR-14 346 0.032 +1- 0.004 0.011 12-MAR-14 19-MAR-14 296 0.018 +1- 0.004 0.010 19-MAR-14 26-MAR-1 4 299 0.021 +1- 0.004 0.014 26-MAR-14 02-APR-14 297 0.025 +1- 0.004 0.013 02-APR-14 09-APR-14 303 0.015 +1- 0.004 0.014 09-APR-14 16-APR-14 300 0.024 +1- 0.004 0.008 16-APR-14 24-APR-1 4 338 0.034 +1- 0.004 0.018 24-APR-14 30-APR- 14 261 0.019 +1- 0.004 0.016 30-APR-14 05-MAY-14 207 0.023 +1- 0.005 0.013 05-MAY- 14 13-MAY-14 342 0.025 +1- 0.004 0.011 13-MAY-1 4 19-MAY-14 253 0.028 +1- 0.004 0.010 19-MAY-1 4 27-MAY-14 348 0.023 +1- 0.003 0.009 27-MAY-14 03-JUN-14 298 0.023 +1- 0.004 0.010 03-JUN-14 09-JUN-14 256 0.021 +1- 0.004 0.009 09-JUN-14 16-JUN-14 297 0.018 +1- 0.004 0.009 16-JUN-14 23-JUN-14 297 0.025 +1- 0.004 0.007 23-JUN-14 30-JUN-14 304 0.017 +1- 0.004 0.010 30-JUN-14 07-JUL-14 298 0.017 +1- 0.004 0.010 07-JUL-14 14-JUL-14 298 0.026 +1- 0.004 0.010 14-JUL-14 22-JUL-14 340 0.019 +1- 0.004 0.019 22-JUL-14 28-JUL-14 263 0.025 +1- 0.005 0.012 28-JUL-14 04-AUG-1 4 294 0.030 +1- 0.004 0.010 04-AUG-14 11-AUG-14 300 0.030 +1- 0.004 0.011 11-AUG-14 18-AUG-14 294 0.024 +1- 0.004 0.014 18-AUG-14 25-AUG-14 301 0.026 +1- 0.004 0.009 25-AUG- 14 02-SEP-14 340 0.024 +1- 0.004 0.010 02-SEP-14 08-SEP-14 261 0.012 +1'- 0.004 0.013 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 3

Air Particulate and Charcoal Filters Location: 018 Collection Collection Volume Gross Beta 1-131 Duplicate Start Date End Date m3 Concentration Concentration Analysis (pCi/m 3 ) (pCi/m 3) 08-SEP-14 15-SEP-14 301 0.009 +1- 0.004 < 0.011 08-SEP-14 15-SEP-14 301 0.014 +1- 0.004 Duplicate 15-SEP-14 22-SEP-14 301 0.027 +1- 0.004 0.022 22-SEP-14 29-SEP-14 297 0.034 +1- 0.004 0.009 29-SEP-14 06-OCT-14 301 0.021 +1- 0.004 0.012 06-OCT-14 14-OCT-14 342 0.017 +1- 0.003 0.011 14-OCT-14 20-OCT-14 260 0.016 +1- 0.004 0.010 20-OCT-14 27-OCT- 14 299 0.041 +1- 0.005 0.007 27-OCT-14 03-NOV-14 309 0.022 +1- 0.004 0.011 03-NOV- 14 10-NOV-14 300 0.019 +1- 0.004 0.011 10-NOV-14 17-NOV-14 316 0.021 +1- 0.004 0.009 17-NOV- 14 24-NOV-14 297 0.025 +1- 0.004 0.013 24-NOV-1 4 02-DEC-14 341 0.028 +1- 0.004 0.014 02-DEC-14 08-DEC-14 254 0.033 +1- 0.005 0.012 08-DEC-14 16-DEC-1 4 342 0.040 +1- 0.004 0.011 16-DEC-14 22-DEC-14 261 0.021 +1- 0.004 0.008 22-DEC-14 29-DEC-1 4 302 0.020 +1- 0.004 0.009 29-DEC-14 05-JAN-15 333 0.032 +1- 0.004 29-DEC-14 05-JAN-1 5 333 < 0.010 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 4

Air Particulate and Charcoal Filters Location: 032 Collection Collection Volume Gross Beta 1-131 Duplicate Start Date End Date m3 Concentration Concentration Analysis (pCi/m 3 ) (pCi/m 3 )

30-DEC-1 3 07-JAN-14 341 0.032 +1- 0.004 0.008 07-JAN-14 13-JAN-14 253 0.029 +1- 0.005 0.012 13-JAN-1 4 20-JAN- 14 307 0.015 +1- 0.004 0.011 20-JAN-14 27-JAN- 14 304 0.015 +1- 0.004 0.010 27-JAN-14 03-FEB-14 299 0.018 +1- 0.004 0.022 03-FEB-1 4 10-FEB-1 4 303 0.027 +1- 0.004 0.011 10-FEB-1 4 17-FEB-14 295 0.033 +1- 0.004 0.007 17-FEB-14 24-FEB-14 301 0.016 +1- 0.004 0.007 24-FEB-14 04-MAR-14 346 0.033 +1- 0.004 0.013 04-MAR-14 12-MAR-14 332 0.033 +1- 0.004 0.011 12-MAR-14 19-MAR-14 294 0.019 +1- 0.004 0.010 19-MAR-14 26-MAR-14 303 0.016 +1- 0.004 0.014 26-MAR- 14 02-APR-14 295 0.022 +1- 0.004 0.013 02-APR-14 09-APR-1 4 298 0.018 +1- 0.004 0.015 09-APR-14 16-APR-14 295 0.024 .1-I- 0.004 0.008 16-APR-14 24-APR-14 349 0.030 +1- 0.004 0.017 24-APR-14 30-APR-14 265 0.017 +1- 0.004 0.015 30-APR-14 05-MAY- 14 204 0.028 +1- 0.005 0.013 05-MAY- 14 13-MAY-14 352 0.022 +1- 0.003 0.011 13-MAY-1 4 19-MAY-1 4 253 0.028 +1- 0.004 0.010 19-MAY- 14 27-MAY-14 347 0.028 +1- 0.004 0.009 27-MAY-14 03-JUN-14 299 0.021 +1- 0.004 0.010 03-JUN-14 09-JUN-14 256 0.022 +1- 0.004 0.009 09-JUN-14 16-JUN-14 302 0.017 +1- 0.004 0.009 16-JUN-14 23-JUN-14 297 0.021 +1- 0.004 0.007 23-JUN-14 30-JUN-14 306 0.019 +1- 0.004 0.010 30-JUN-14 07-JUL-14 302 0.021 +1- 0.004 0.010 07-JUL-14 14-JUL-14 291 0.025 +1- 0.004 0.010 14-JUL-14 22-JUL-14 345 0.022 +1- 0.004 0.019 22-JUL-14 28-JUL-14 261 0.027 +1- 0.005 0.012 28-JUL-14 04-AUG-14 292 0.032 +1- 0.005 0.010 04-AUG-14 11-AUG-14 305 0.029 +1- 0.004 0.011 11-AUG-14 18-AUG-14 296 0.026 +1- 0.004 0.014 18-AUG-14 25-AUG-14 306 0.028 +1- 0.004 0.008 25-AUG-14 02-SEP-14 341 0.028 +1- 0.004 0.010 02-SEP-1 4 08-SEP-14 259 0.011 +1- 0.004 0.013 08-SEP-14 15-SEP-14 308 0.013 +1- 0.004 0.010 15-SEP-14 22-SEP-1 4 299 0.029 +1- 0.004 0.022 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 5

Air Particulate and Charcoal Filters Location: 032 Collection Collection Volume Gross Beta 1-131 Duplicate Start Date End Date m3 Concentration Concentration Analysis (pCilm3 ) (pCi/m 3 )

22-SEP-14 29-SEP-1 4 296 0.036 +1- 0.004 0.009 29-SEP-14 06-OCT-14 300 0.020 +1- 0.004 0.012 06-OCT-1 4 14-OCT-14 343 0.018 +1- 0.003 0.011 14-OCT-14 20-OCT-14 257 0.020 +1- 0.005 0.010 20-OCT-14 27-OCT-14 301 0.041 +1- 0.005 0.007 27-OCT-1 4 03-NOV-14 310 0.020 +1- 0.004 0.011 03-NOV-14 10-NOV-14 296 0.021 +1- 0.004 0.011 10-NOV-14 17-NOV-14 329 0.023 +1- 0.004 0.009 17-NOV- 14 24-NOV-14 289 0.020 +1- 0.004 0.013 24-NOV-1 4 02-DEC-14 340 0.028 +1- 0.004 Duplicate 24-NOV-1 4 02-DEC-14 340 0.029 +1- 0.004 0.014 02-DEC-14 08-DEC-14 258 0.031 +1- 0.005 0.012 08-DEC-14 16-DEC-1 4 343 0.041 +1- 0.004 0.011 16-DEC-14 22-DEC-14 262 0.023 +1- 0.004 0.008 22-DEC-14 29-DEC-14 307 0.018 +1- 0.004 0.009 29-DEC-14 05-JAN-15 306 0.032 +1- 0.004 29-DEC-14 05-JAN-15 306 < 0.011 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 6

Air Particulate and Charcoal Filters Location: 037 Collection Collection Volume 3

Gross Beta 1-131 Duplicate Start Date End Date m Concentration Concentration Analysis (pCi/m3 ) (pCi/m 3) 30-DEC-13 07-JAN-14 353 0.031 +1- 0.004 0.008 07-JAN-14 13-JAN-14 248 0.026 +1- 0.005 0.012 13-JAN-14 20-JAN-14 306 0.017 +1- 0.004 0.011 20-JAN-14 27-JAN-14 311 0.017 +1- 0.004 0.010 27-JAN-14 03-FEB-14 294 0.022 +1- 0.004 0.022 03-FEB-14 10-FEB-14 292 0.027 +1- 0.004 0.012 10-FEB-14 17-FEB-14 289 0.035 +1- 0.005 0.007 10-FEB-14 17-FEB-14 289 0.038 +1- 0.005 Duplicate 17-FEB-14 24-FEB-14 297 0.018 +1- 0.004 0.007 24-FEB-14 04-MAR-14 348 0.030 +1- 0.004 0.009 04-MAR-14 12-MAR-14 339 0.033 +1- 0.004 0.011 12-MAR- 14 19-MAR-14 294 0.019 +1- 0.004 0.010 19-MAR-14 26-MAR-14 308 0.021 +1- 0.004 0.014 19-MAR-14 26-MAR-14 308 0.020 +1- 0.004 Duplicate 26-MAR-14 02-APR-14 300 0.022 +1- 0.004 0.013 02-APR-14 09-APR-1 4 302 0.018 0.004 0.014 09-APR-14 16-APR-14 298 0.025 +1- 0.004 0.008 16-APR-14 24-APR-1 4 345 0.032 +1- 0.004 0.017 24-APR-14 30-APR-14 270 0.017 +1- 0.004 0.015 30-APR-14 05-MAY-14 202 0.021 +1- 0.005 0.013 05-MAY- 14 13-MAY-14 352 0.024 +1- 0.003 0.011 13-MAY-14 19-MAY-14 255 0.027 +1- 0.004 0.010 19-MAY-14 27-MAY- 14 348 0.019 +1- 0.004 0.009 27-MAY- 14 03-JUN-14 291 0.024 +1- 0.004 0.010 03-JUN-14 09-JUN-14 258 0.021 +1- 0.004 0.009 09-JUN-14 16-JUN-14 302 0.014 +1- 0.004 0.009 16-JUN-14 23-JUN-14 297 0.024 +1- 0.004 0.007 23-JUN-14 30-JUN-14 307 0.015 +1- 0.004 0.009 30-JUN-14 07-JUL-14 298 0.020 +1- 0.004 0.010 07-JUL-14 14-JUL-14 312 0.026 +1- 0.004 0.009 14-JUL-14 22-JUL-14 268 0.021 +1- 0.005 0.024 22-JUL-14 28-JUL-14 266 0.025 +1- 0.005 0.012 28-JUL-14 04-AUG-14 298 0.033 +1- 0.005 0.010 28-JUL-14 04-AUG-14 298 0.029 +1- 0.004 Duplicate 04-AUG-14 11-AUG-14 305 0.031 +1- 0.004 0.011 11-AUG-14 18-AUG-14 300 0.027 +1- 0.004 0.014 18-AUG-14 25-AUG-14 298 0.029 +1- 0.004 0.009 25-AUG-14 02-SEP-14 344 0.022 +1- 0.004 0.009 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 7

Air Particulate and Charcoal Filters Location: 037 Collection Collection Volume Gross Beta 1-131 Duplicate Start Date End Date m3 Concentration Concentration Analysis (pCi/m 3 ) (pCilm 3) 02-SEP-14 08-SEP-14 261 0.013 +1- 0.004 0.013 08-SEP-14 15-SEP-14 302 0.012 +1- 0.004 0.010 15-SEP-14 22-SEP-14 304 0.026 +1- 0.004 0.022 22-SEP-14 29-SEP-14 300 0.034 +1- 0.004 0.009 29-SEP-14 06-OCT-14 296 0.022 +1- 0.004 0.012 06-OCT-14 14-OCT-14 343 0.016 +1- 0.003 0.011 14-OCT-14 20-OCT-14 258 0.020 +1- 0.005 0.010 20-OCT-14 27-OCT-14 304 0.042 +1- 0.005 0.007 27-OCT-14 03-NOV-14 310 0.022 +1- 0.004 0.011 03-NOV-14 10-NOV-14 307 0.023 +1- 0.004 0.011 10-NOV-14 17-NOV-14 329 0.018 +1- 0.004 0.009 17-NOV-14 24-NOV-14 295 0.024 +1- 0.004 0.013 24-NOV-14 02-DEC-14 342 0.027 +1- 0.004 0.014 02-DEC-14 08-DEC-14 261 0.034 +1- 0.005 0.012 08-DEC-14 16-DEC-14 333 0.037 +1- 0.004 0.012 16-DEC-14 22-DEC-1 4 264 0.023 +1- 0.004 0.008 22-DEC-14 29-DEC-14 309 0.018 +1- 0.004 0.009 29-DEC-14 05-JAN-15 312 0.029 +1- 0.004 29-DEC-14 05-JAN-15 312 < 0.010 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 8

Air Particulate and Charcoal Filters Location: 049 Collection Collection Volume Gross Beta 1-131 Duplicate 3

Start Date End Date m Concentration Concentration Analysis (pCi/m 3 ) (pCi/m 3 )

30-DEC-13 07-JAN-14 353 0.031 +1- 0.004 0.008 07-JAN-14 13-JAN-14 255 0.029 +1- 0.005 0.011 13-JAN-14 20-JAN-14 308 0.014 +1- 0.004 0.011 20-JAN-1 4 27-JAN-14 305 0.017 +1- 0.004 0.010 27-JAN-1 4 03-FEB-14 304 0.023 +1- 0.004 0.021 03-FEB-14 10-FEB-14 307 0.028 +1- 0.004 0.011 10-FEB-14 17-FEB-14 157 0.035 +1- 0.007 0.013 17-FEB-14 24-FEB-1 4 303 0.018 +1- 0.004 0.006 24-FEB-1 4 04-MAR- 14 348 0.036 +1- 0.004 0.009 04-MAR- 14 12-MAR-1 4 337 0.034 +1- 0.004 0.011 12-MAR-1 4 19-MAR-14 292 0.019 +1- 0.004 0.010 19-MAR-1 4 26-MAR-14 305 0.022 +1- 0.004 0.014 26-MAR- 14 02-APR-14 296 0.021 +1- 0.004 0.013 02-APR-1 4 09-APR-14 301 0.021 +1- 0.004 0.014 09-APR-1 4 16-APR-14 298 0.025 +1- 0.004 0.008 16-APR-14 24-APR-14 365 0.033 +1- 0.004 0.016 24-APR-14 30-APR-14 270 0.019 +1- 0.004 0.015 30-APR- 14 05-MAY-14 202 0.029 +1- 0.005 0.013 05-MAY-14 13-MAY-14 347 0.024 +1- 0.003 0.011 13-MAY-14 19-MAY-14 253 0.030 +1- 0.004 0.010 19-MAY-14 27-MAY-14 347 0.023 +1- 0.003 0.009 27-MAY-14 03-JUN-14 299 0.021 +1- 0.004 0.010 03-JUN-14 09-JUN-14 256 0.022 +1- 0.004 0.009 09-JUN-14 16-JUN-14 302 0.014 +1- 0.004 0.009 16-JUN-14 23-JUN-14 180 0.024 +1- 0.006 0.011 23-JUN-14 30-JUN-14 298 0.017 +1- 0.004 0.010 30-JUN-14 07-JUL-14 299 0.019 +1- 0.004 0.010 07-JUL-14 14-JUL-14 301 0.024 +1- 0.004 0.010 14-JUL-14 22-JUL-14 344 0.023 +1- 0.004 0.019 22-JUL-14 28-JUL-14 259 0.029 +1- 0.005 0.012 28-JUL-14 04-AUG-14 297 0.034 +1- 0.005 0.010 04-AUG-1 4 11-AUG-14 304 0.031 +1- 0.004 0.011 11-AUG-14 18-AUG-14 261 0.024 +1- 0.005 0.016 18-AUG-14 25-AUG-14 295 0.030 +1- 0.004 0.009 25-AUG-14 02-SEP-14 314 0.026 +1- 0.004 Duplicate 25-AUG-14 02-SEP-14 314 0.025 +1- 0.004 0.010 02-SEP-14 08-SEP-14 259 0.014 +1- 0.004 0.013 08-SEP-14 15-SEP-1 4 301 0.009 +1- 0.004 0.011 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 9

Air Particulate and Charcoal Filters Location: 049 Collection Collection Volume Gross Beta 1-131 Duplicate m3 Start Date End Date Concentration Concentration Analysis (pCi/m 3 ) (pCi/m 3 )

15-SEP-14 22-SEP-14 302 0.025 +1- 0.004 0.022 22-SEP-14 29-SEP-14 299 0.033 +1- 0.004 0.009 29-SEP-14 06-OCT-14 299 0.024 +1- 0.004 0.012 06-OCT-14 14-OCT-14 343 0.018 +1- 0.003 0.011 14-OCT-14 20-OCT-14 260 0.020 +1- 0.005 0.010 20-OCT-1 4 27-OCT-14 299 0.047 +1- 0.005 0.007 27-OCT-1 4 03-NOV-14 307 0.022 +1- 0.004 0.011 03-NOV-1 4 10-NOV-14 305 0.021 -I-I- 0.004 0.011 10-NOV-14 17-NOV-14 325 0.021 +1- 0.004 0.009 17-NOV-14 24-NOV-14 296 0.023 +1- 0.004 0.013 24-NOV-14 02-DEC-14 344 0.029 +1- 0.004 0.014 02-DEC-14 08-DEC-14 260 0.035 +1- 0.005 0.012 08-DEC-14 16-DEC-14 343 0.037 +1- 0.004 0.011 16-DEC-14 22-DEC-14 262 0.024 +1- 0.004 0.008 22-DEC-14 29-DEC-14 303 0.023 +1- 0.004 0.009 29-DEC-1 4 05-JAN-15 316 0.033 +1- 0.004 29-DEC-14 05-JAN-15 316 < 0.010 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 10

Air Particulate and Charcoal Filters Location: 053 Collection Collection Volume Gross Beta 1-131 Duplicate Start Date End Date m3 Concentration Concentration Analysis (pCi/m 3 ) (pCi/m 3) 30-DEC-1 3 07-JAN- 14 347 0.033 +1- 0.004 0.008 07-JAN-14 13-JAN-14 253 0.025 +1- 0.005 0.012 13-JAN-14 20-JAN-14 306 0.013 +1- 0.004 0.011 20-JAN-14 27-JAN-14 308 0.015 +1- 0.004 0.010 27-JAN-14 03-FEB-14 298 0.021 +1- 0.004 0.022 03-FEB-14 10-FEB-14 306 0.024 +1- 0.004 0.011 10-FEB-14 17-FEB-14 288 0.036 +1- 0.005 0.007 17-FEB-1 4 24-FEB-14 292 0.017 +1- 0.004 0.007 24-FEB-14 04-MAR-14 350 0.033 +1- 0.004 0.011 04-MAR-14 12-MAR-14 342 0.032 +1- 0.004 0.011 12-MAR-14 19-MAR- 14 295 0.016 +1- 0.004 0.010 19-MAR- 14 26-MAR- 14 307 0.017 +1- 0.004 0.014 26-MAR-14 02-APR-14 297 0.016 +1- 0.004 0.013 02-APR-14 09-APR-14 302 0.018 +1- 0.004 0.014 09-APR-14 16-APR-14 303 0.021 +1- 0.004 0.008 16-APR-14 24-APR-14 343 0.031 +1- 0.004 0.017 24-APR-14 30-APR-14 261 0.021 +1- 0.004 0.016 30-APR-14 05-MAY-1 4 202 0.026 +1- 0.005 0.013 05-MAY-14 13-MAY-1 4 345 0.024 +1- 0.003 0.011 13-MAY-14 19-MAY- 14 255 0.031 +1- 0.004 Duplicate 13-MAY-14 19-MAY-1 4 255 0.029 +1- 0.004 0.010 19-MAY-14 27-MAY-14 346 0.028 +1- 0.004 0.009 27-MAY-14 03-JUN-14 298 0.023 +1- 0.004 0.010 03-JUN-14 09-JUN-14 255 0.022 +1- 0.004 0.009 09-JUN-14 16-JUN-14 297 0.019 +1- 0.004 0.009 16-JUN-14 23-JUN-14 292 0.024 +1- 0.004 0.007 23-JUN-14 30-JUN-14 304 0.017 +1- 0.004 0.010 30-JUN-14 07-JUL-14 297 0.018 +1- 0.004 0.010 07-JUL-14 14-JUL-14 302 0.021 +1- 0.004 0.010 14-JUL-14 22-JUL-14 339 0.022 +1- 0.004 0.019 22-JUL-14 28-JUL-14 261 0.028 +1- 0.005 0.012 28-JUL-14 04-AUG-1 4 293 0.033 +1- 0.005 0.010 04-AUG-14 11-AUG-14 307 0.032 +1- 0.004 0.011 11-AUG-14 18-AUG-14 296 0.028 +1- 0.004 0.014 18-AUG-14 25-AUG-14 299 0.026 +1- 0.004 0.009 25-AUG-14 02-SEP-14 343 0.024 +1- 0.004 0.009 02-SEP-14 08-SEP-14 251 0.013 +1- 0.005 0.013 08-SEP-14 15-SEP-14 303 0.012 +1- 0.004 0.010 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - I I

Air Particulate and Charcoal Filters Location: 053 Collection Collection Volume 3

Gross Beta 1-131 Duplicate m

Start Date End Date Concentration Concentration Analysis (pCi/lm 3 ) (pCi/m 3 )

15-SEP-14 22-SEP-14 305 0.028 +/- 0.004 < 0.022 22-SEP-14 29-SEP-14 293 0.034 +/- 0.004 < 0.009 29-SEP-14 06-OCT-14 303 0.021 +/- 0.004 < 0.011 06-OCT-14 14-OCT-14 341 0.020 +/- 0.004 < 0.011 14-OCT-14 20-OCT-14 259 0.019 +/- 0.004 < 0.010 20-OCT-1 4 27-OCT-14 297 0.046 +/- 0.005 < 0.007 27-OCT-1 4 03-NOV-14 314 0.021 +/- 0.004 < 0.011 03-NOV-14 10-NOV-14 301 0.021 +/- 0.004 < 0.011 10-NOV-14 17-NOV-14 322 0.023 +/- 0.004 < 0.009 17-NOV-14 24-NOV-14 293 0.026 +/- 0.004 < 0.013 24-NOV- 14 02-DEC-14 340 0.028 +/- 0.004 < 0.014 02-DEC-14 08-DEC-14 256 0.034 +/- 0.005 < 0.012 08-DEC-14 16-DEC-14 341 0.041 +/- 0.004 < 0.011 16-DEC-14 22-DEC-14 258 0.026 +/- 0.005 < 0.008 22-DEC-14 29-DEC-14 328 0.024 +/- 0.004 < 0.008 29-DEC-1 4 05-JAN-1 5 310 0.030 +/- 0.004 29-DEC-14 05-JAN-15 310 < 0.010 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 12

Quarterly Air Particulate - Gamma Location: 002 02-APR-14 Nuclide Concentration (pCi/m 3 )

BE-7 0.066+/- 0.012 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-137 < 0.001 30-JUN-14 3 Nuclide Concentration (pCi/m )

BE-7 0.086+/- 0.015 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-SEP-14 3 Nuclide Concentration (pCi/m )

BE-7 0.092+/- 0.017 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-1 37 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 13

Quarterly Air Particulate - Gamma Location: 002 29-DEC-14 Nuclide Concentration (pCi/m 3 )

BE-7 0.043+/- 0.011 BE-7 0.043+/- 0.012 MN-54 < 0.001 MN-54 < 0.001 CO-58 < 0.001 CO-58 < 0.001 FE-59 < 0.002 FE-59 < 0.002 CO-60 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-134 < 0.001 CS-137 < 0.001 CS-137 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 14

Quarterly Air Particulate - Gamma Location: 018 02-APR-14 3 Nuclide Concentration (pCi/m )

BE-7 0.058+/- 0.013 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-1 37 < 0.001 30-JUN-14 3 Nuclide Concentration (pCi/m )

BE-7 0.091+/- 0.015 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-SEP-14 3 Nuclide Concentration (pCi/m )

BE-7 0.074+/- 0.015 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 15

Quarterly Air Particulate - Gamma Location: 018 29-DEC-14 Nuclide Concentration (pCi/m 3 )

BE-7 0.054+/- 0.014 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.002 CO-60 < 0.001 ZN-65 < 0.002 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-1 37 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 16

Quarterly Air Particulate - Gamma Location: 032 02-APR-14 Nuclide Concentration (pCi/m 3 )

BE-7 0.061+/- 0.013 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.002 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-1 37 < 0.001 30-JUN-14 3 Nuclide Concentration (1Ci/m )

BE-7 0.096+/- 0.016 BE-7 0.096+/- 0.020 MN-54 < 0.001 MN-54 < 0.001 CO-58 < 0.001 CO-58 < 0.001 FE-59 < 0.001 FE-59 < 0.002 CO-60 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-1 34 < 0.001 CS-1 37 < 0.001 CS-137 < 0.001 29-SEP-14 3 Nuclide Concentration (pCi/m )

BE-7 0.080+/- 0.012 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-1 37 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 17

Quarterly Air Particulate - Gamma Location: 032 29-DEC-14 Nuclide Concentration (pCilm 3 )

BE-7 0.042+/- 0.013 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 18

Quarterly Air Particulate - Gamma Location: 037 02-APR-14 Nuclide Concentration (pCiIm 3 )

BE-7 0.062+/- 0.014 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-1 37 < 0.001 30-JUN-14 3 Nuclide Concentration (DCi/m )

BE-7 0.090+/- 0.019 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.002 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-SEP-14 3 Nuclide Concentration (DCi/m )

BE-7 0.077+/- 0.012 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 19

Quarterly Air Particulate - Gamma Location: 037 29-DEC-14 Nuclide Concentration (pCi/m33 )

BE-7 0.055+/- 0.015 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.002 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-137 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 20

Quarterly Air Particulate - Gamma Location: 049 02-APR-14 Nuclide Concentration (pCi/lm 3 )

BE-7 0.071+/- 0.012 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.002 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-137 < 0.001 30-JUN-14 3 Nuclide Concentration (pCi/m3 )

BE-7 0.079+/- 0.017 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.002 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-SEP-14 3 Nuclide Concentration (pCi/m3 )

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

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 21

Quarterly Air Particulate - Gamma Location: 049 29-DEC-14 Nuclide Concentration (pCi/m 3 )

BE-7 0.056+/- 0.013 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.002 CO-60 < 0.001 ZN-65 < 0.002 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 22

Quarterly Air Particulate - Gamma Location: 053 02-APR-14 Nuclide Concentration (pCi/m 3 )

BE-7 0.069+/- 0.013 BE-7 0.075+/- 0.012 MN-54 < 0.001 MN-54 < 0.001 CO-58 < 0.001 CO-58 < 0.001 FE-59 < 0.001 FE-59 < 0.001 CO-60 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-134 < 0.001 CS-137 < 0.001 CS-1 37 < 0.001 30-JUN-14 3 Nuclide Concentration (pCiIm )

BE-7 0.088+/- 0.017 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.002 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001 29-SEP-14 3 Nuclide Concentration (pCi/m )

BE-7 0.075+/- 0.015 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.002 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-134 < 0.001 CS-137 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 23

Quarterly Air Particulate - Gamma Location: 053 29-DEC-14 Nuclide Concentration (pCi/mr3 )

BE-7 0.059+/- 0.012 MN-54 < 0.001 CO-58 < 0.001 FE-59 < 0.001 CO-60 < 0.001 ZN-65 < 0.001 ZR-NB-95 < 0.001 CS-1 34 < 0.001 CS-I 37 < 0.001

• Duplicate Analysis 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 24

Exposure Pathway - Waterborne Surface Water Location JRR Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 21-JAN-14 MN-54 2.4 21-JAN-14 CO-58 3.1 21-JAN-14 FE-59 3.9 21-JAN-1 4 CO-60 2.0 21-JAN-14 ZN-65 5.1 21-JAN-14 ZR-NB-95 2.0 21-JAN-14 1-131 4.6 21-JAN-14 CS-134 4.0 21-JAN-14 CS-1 37 2.7 21-JAN-14 BA-LA- 140 1.8 21-JAN-14 H-3 151.0 17-FEB-14 MN-54 2.5 17-FEB-14 CO-58 1.8 17-FEB-14 FE-59 4.6 17-FEB-14 CO-60 2.2 17-FEB-1 4 ZN-65 4.8 17-FEB-14 ZR-NB-95 2.8 17-FEB-14 1-131 3.5 17-FEB-14 CS-134 2.9 17-FEB-14 CS-137 2.7 17-FEB-14 BA-LA-1 40 2.3 17-FEB-14 H-3 147.0 17-FEB-14 FE-55 139.0 19-MAR-14 MN-54 2.4 19-MAR- 14 CO-58 2.6 19-MAR-14 FE-59 4.3 19-MAR-14 CO-60 1.1 19-MAR-14 ZN-65 2.3 19-MAR-14 ZR-NB-95 4.3 19-MAR- 14 1-131 5.0 19-MAR-1 4 CS-134 3.5 19-MAR-1 4 CS-137 3.0 19-MAR-14 BA-LA- 140 2.9 19-MAR-14 H-3 145.0 16-APR-14 MN-54 2.6 16-APR-14 CO-58 2.6 16-APR-14 FE-59 5.0 16-APR-14 CO-60 1.3 16-APR-14 ZN-65 3.3 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 25

Exposure Pathway - Waterborne Surface Water Location JRR Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 16-APR-1 4 ZR-NB-95 2.6 16-APR- 14 1-131 4.9 16-APR-14 CS-134 3.0 16-APR-14 CS-137 3.3 16-APR-1 4 BA-LA- 140 3.2 16-APR-14 H-3 144.0 21 -MAY- 14 MN-54 2.5 21-MAY-1 4 CO-58 1.9 21-MAY-14 FE-59 4.6 21-MAY-1 4 CO-60 2.1 21-MAY-14 ZN-65 2.7 21-MAY-14 ZR-NB-95 3.6 21-MAY-14 1-131 5.5 21-MAY-14 CS-134 3.7 21-MAY-14 CS-1 37 3.8 21-MAY-14 BA-LA- 140 3.2 21-MAY-14 H-3 147.0 21-MAY-14 FE-55 118.0 16-JUN-14 MN-54 1.9 16-JUN-14 CO-58 1.4 16-JUN-14 FE-59 3.0 16-JUN-14 CO-60 1.8 16-JUN-14 ZN-65 5.7 16-JUN-14 ZR-NB-95 2.7 16-JUN-14 1-131 4.7 16-JUN-14 CS-134 2.8 16-JUN-14 CS-137 2.0 16-JUN-14 BA-LA-140 1.5 16-JUN-14 H-3 141.0 24-JUL-14 MN-54 1.4 24-JUL-14 CO-58 1.4 24-JUL-14 FE-59 2.6 24-JUL-14 CO-60 1.6 24-JUL-14 ZN-65 2.4 24-JUL-14 ZR-NB-95 2.3 24-JUL-14 1-131 4.6 24-JUL-14 CS-1 34 2.6 24-JUL-14 CS-1 37 2.4 24-JUL-14 BA-LA-140 2.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 26

Exposure Pathway - Waterborne Surface Water Location JRR Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 24-JUL-14 H-3 136.0 25-AUG-14 MN-54 2.1 25-AUG-14 CO-58 2.5 25-AUG-1 4 FE-59 4.4 25-AUG-1 4 CO-60 1.7 25-AUG-14 ZN-65 5.1 25-AUG-14 ZR-NB-95 2.5 25-AUG-14 1-131 5.3 25-AUG-14 CS-134 3.5 25-AUG-14 CS-137 2.4 25-AUG-14 BA-LA-140 1.6 25-AUG-14 H-3 176.0 25-AUG-14 FE-55 162.0 15-SEP-14 MN-54 3.9 15-SEP-14 CO-58 3.3 15-SEP-14 FE-59 4.3 15-SEP-14 CO-60 1.4 15-SEP-14 ZN-65 7.8 15-SEP-14 ZR-NB-95 3.4 15-SEP-14 1-131 6.6 15-SEP-14 CS-134 3.9 15-SEP-14 CS-137 3.5 15-SEP-14 BA-LA-140 2.6 15-SEP-14 H-3 156.0 27-OCT-14 MN-54 4.8 27-OCT-1 4 CO-58 1.3 27-OCT-14 FE-59 3.3 27-OCT- 14 CO-60 2.1 27-OCT-14 ZN-65 5.8 27-OCT-14 ZR-NB-95 4.2 27-OCT-14 1-131 5.1 27-OCT-14 CS-134 4.0 27-OCT-14 CS-1 37 4.6 27-OCT- 14 BA-LA-1 40 2.1 27-OCT-14 H-3 169.0 17-NOV-14 MN-54 2.2 17-NOV-14 CO-58 2.2 17-NOV-14 FE-59 3.0 17-NOV-14 CO-60 1.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 27

Exposure Pathway - Waterborne Surface Water Location JRR Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-NOV-14 ZN-65 3.8 17-NOV-14 ZR-NB-95 2.4 17-NOV-14 1-131 3.4 17-NOV-14 CS-134 2.5 17-NOV-14 CS-137 2.7 17-NOV-14 BA-LA- 140 2.2 17-NOV-14 H-3 179.0 17-NOV-14 FE-55 181.0 08-DEC-14 MN-54 3.3 08-DEC-14 CO-58 2.3 08-DEC-14 FE-59 5.4 08-DEC-14 CO-60 3.0 08-DEC-14 ZN-65 2.9 08-DEC-14 ZR-NB-95 2.5 08-DEC-14 1-131 3.8 08-DEC-14 CS-1 34 4.1 08-DEC-14 CS-1 37 3.6 08-DEC-14 BA-LA- 140 3.5 08-DEC-14 H-3 166.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 28

Exposure Pathway - Waterborne Surface Water Location SP Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 21-JAN-14 MN-54 2.2 21-JAN-14 CO-58 2.2 21-JAN-14 FE-59 5.0 21-JAN-14 CO-60 2.8 21-JAN-14 ZN-65 3.1 21-JAN-14 ZR-NB-95 3.4 21-JAN-14 1-131 3.6 21-JAN-14 CS-134 3.1 21-JAN-14 CS-137 3.0 21-JAN-14 BA-LA- 140 2.5 21-JAN-14 H-3 10,278+1 297.0 24-FEB-14 MN-54 2.8 24-FEB-14 CO-58 1.4 24-FEB-1 4 FE-59 2.4 24-FEB-1 4 CO-60 1.4 24-FEB-14 ZN-65 3.9 24-FEB-14 ZR-NB-95 3.0 24-FEB-14 1-131 2.5 24-FEB-14 CS-1 34 3.3 24-FEB-14 CS-1 37 1.8 24-FEB-14 BA-LA-1 40 1.2 24-FEB-14 H-3 9,944+- 288.0 24-FEB-14 FE-55 145.0 19-MAR-14 MN-54 2.8 19-MAR-14 CO-58 1.7 19-MAR-1 4 FE-59 6.0 19-MAR-14 CO-60 3.1 19-MAR-1 4 ZN-65 3.3 19-MAR-1 4 ZR-NB-95 2.7 19-MAR-14 1-131 5.6 19-MAR- 14 CS-134 3.7 19-MAR-1 4 CS-137 2.6 19-MAR- 14 BA-LA- 140 2.9 19-MAR- 14 H-3 12,629+- 327.0 16-APR-14 MN-54 2.6 16-APR-14 CO-58 3.6 16-APR-14 FE-59 4.1 16-APR-14 CO-60 2.1 16-APR-14 ZN-65 4.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 29

Exposure Pathway - Waterborne Surface Water Location SP Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 16-APR-1 4 ZR-NB-95 2.7 16-APR-1 4 1-131 4.5 16-APR- 14 CS-134 3.2 16-APR- 14 CS-137 2.6 16-APR-14 BA-LA- 140 3.3 16-APR- 14 H-3 13,104 +/- 334.0 21-MAY-14 MN-54 5.7 21-MAY-14 MN-54 2.0 Duplicate 21-MAY-14 CO-58 3.9 21-MAY-14 CO-58 1.8 Duplicate 21 -MAY- 14 FE-59 4.4 Duplicate 21-MAY-14 FE-59 7.6 21-MAY-14 CO-60 1.6 Duplicate 21-MAY-14 CO-60 3.7 21-MAY-14 ZN-65 1.3 Duplicate 21-MAY-14 ZN-65 4.4 21-MAY-14 ZR-NB-95 4.2 21-MAY-14 ZR-NB-95 2.8 Duplicate 21-MAY-14 1-131 8.3 21-MAY-14 1-131 5.4 Duplicate 21-MAY-14 CS-134 5.0 21-MAY-14 CS-134 2.7 Duplicate 21-MAY-14 CS-1 37 1.9 Duplicate 21-MAY-14 CS-137 3.3 21-MAY-14 BA-LA- 140 5.7 21-MAY-14 BA-LA- 140 2.1 Duplicate 21-MAY-14 H-3 14,350+1 348.0 Duplicate 21-MAY-14 H-3 14,318+- 347.0 21-MAY-14 FE-55 184.0 Duplicate 21 -MAY- 14 FE-55 122.0 16-JUN-14 MN-54 2.2 Duplicate 16-JUN-14 MN-54 2.5 16-JUN-14 CO-58 3.8 Duplicate 16-JUN-14 CO-58 2.1 16-JUN-14 FE-59 4.2 Duplicate 16-JUN-14 FE-59 4.7 16-JUN-14 CO-60 2.0 Duplicate 16-JUN-14 CO-60 4.7 16-JUN-14 ZN-65 7.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 30

Exposure Pathway - Waterborne Surface Water Location SP Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 16-JUN-14 ZN-65 4.3 Duplicate 16-JUN-14 ZR-NB-95 3.8 16-JUN-14 ZR-NB-95 4.1 Duplicate 16-JUN-14 1-131 7.2 Duplicate 16-JUN-14 1-131 6.4 16-JUN-14 CS-134 4.1 Duplicate 16-JUN-14 CS-134 13,303 +1 4.5 16-JUN-14 CS-1 37 4.1 16-JUN-14 CS-137 5.0 Duplicate 16-JUN-14 BA-LA- 140 5.8 16-JUN-14 BA-LA- 140 1.4 Duplicate 16-JUN-14 H-3 336.0 Duplicate 16-JUN-14 H-3 13,130+1 334.0 24-JUL-14 MN-54 2.6 24-JUL-14 CO-58 2.0 24-JUL-14 FE-59 4.9 24-JUL-14 CO-60 1.2 24-JUL-14 ZN-65 3.5 24-JUL-14 ZR-NB-95 4.0 24-JUL-14 1-131 6.4 24-JUL-14 CS-134 3.7 24-JUL-14 CS-137 2.4 24-JUL-14 BA-LA- 140 1.5 24-JUL-14 H-3 11,534+1 309.0 25-AUG-14 MN-54 2.0 25-AUG-14 CO-58 2.6 25-AUG-1 4 FE-59 4.9 25-AUG-14 CO-60 2.6 25-AUG-14 ZN-65 2.5 25-AUG-14 ZR-NB-95 2.4 25-AUG-14 1-131 4.2 25-AUG-14 CS-134 3.3 25-AUG-14 CS-137 3.1 25-AUG-14 BA-LA-140 3.1 25-AUG-1 4 H-3 11,950+- 305.0 25-AUG-14 FE-55 165.0 15-SEP-14 MN-54 1.4 15-SEP-14 CO-58 3.1 15-SEP-14 FE-59 4.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 31

Exposure Pathway - Waterborne Surface Water Location SP Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 15-SEP-14 CO-60 2.5 15-SEP-14 ZN-65 2.7 15-SEP-14 ZR-NB-95 2.2 15-SEP-14 1-131 4.8 15-SEP-14 CS-1 34 2.8 15-SEP-14 CS-137 3.3 15-SEP-14 BA-LA- 140 2.6 15-SEP-14 H-3 11,606+1 337.0 27-OCT-14 MN-54 2.7 27-OCT-14 CO-58 2.4 27-OCT-14 FE-59 6.4 27-OCT-14 CO-60 3.4 27-OCT-14 ZN-65 3.1 27-OCT- 14 ZR-NB-95 2.9 27-OCT-14 1-131 5.7 27-OCT-1 4 CS-134 4.4 27-OCT-14 CS-137 3.5 27-OCT-14 BA-LA- 140 2.5 27-OCT-14 H-3 10,419+1 363.0 17-NOV-14 MN-54 3.6 17-NOV-14 CO-58 3.7 17-NOV-14 FE-59 4.7 17-NOV-14 CO-60 3.4 17-NOV-14 ZN-65 6.0 17-NOV-14 ZR-NB-95 2.8 17-NOV-14 1-131 6.4 17-NOV-14 CS-134 3.9 17-NOV-14 CS-137 4.0 17-NOV-14 BA-LA-140 2.5 17-NOV-14 H-3 10,222+1 361.0 17-NOV-14 FE-55 183.0 08-DEC-14 MN-54 1.8 08-DEC-14 CO-58 2.2 08-DEC-14 FE-59 5.1 08-DEC-14 CO-60 1.6 08-DEC-14 ZN-65 4.1 08-DEC-14 ZR-NB-95 3.0 08-DEC-14 1-131 3.0 08-DEC-14 CS-134 2.5 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 32

Exposure Pathway - Waterborne Surface Water Location SP Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 08-DEC-14 CS-137 < 3.2 08-DEC-14 BA-LA-1 40 < 1.9 08-DEC-14 H-3 10,817 +/- 372.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 33

Exposure Pathway - Waterborne Ground Water Location B-12 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-FEB-14 MN-54 2.9 17-FEB-14 CO-58 1.9 17-FEB-14 FE-59 4.0 17-FEB-14 CO-60 2.3 17-FEB-14 ZN-65 3.5 17-FEB-14 ZR-NB-95 2.2 17-FEB-14 CS-1 34 2.6 17-FEB-14 CS-1 37 2.4 17-FEB-14 BA-LA-1 40 2.1 17-FEB-14 H-3 147.0 17-FEB-14 1-131 (CHEM) 0.308 21-MAY-14 MN-54 2.7 21-MAY-14 CO-58 2.0 21-MAY-14 FE-59 3.4 21-MAY-14 CO-60 2.5 21-MAY-14 ZN-65 2.2 21 -MAY- 14 ZR-NB-95 3.2 21-MAY-14 CS-134 2.6 21-MAY-14 CS-137 3.0 21-MAY-14 BA-LA-140 2.7 21-MAY-14 H-3 145.0 21-MAY-14 1-131 (CHEM) 0.365 25-AUG-14 MN-54 3.5 25-AUG-14 CO-58 2.9 25-AUG-14 FE-59 4.1 25-AUG-14 CO-60 1.3 25-AUG-14 ZN-65 6.4 25-AUG-14 ZR-NB-95 2.6 25-AUG-14 CS-134 4.3 25-AUG-14 CS-137 4.2 25-AUG-1 4 BA-LA-140 3.2 25-AUG-1 4 H-3 176.0 25-AUG-14 1-131 (CHEM) 0.2 17-NOV-14 MN-54 1.8 17-NOV-14 CO-58 2.5 17-NOV-14 FE-59 2.9 17-NOV-14 CO-60 2.0 17-NOV-14 ZN-65 4.2 17-NOV-14 ZR-NB-95 2.5 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 34

Exposure Pathway - Waterborne Ground Water Location B-12 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-NOV-14 CS-134

• 2.9 17-NOV-14 CS-137 < 3.0 17-NOV-14 BA-LA-1 40

• 2.3 17-NOV-14 H-3 < 179.0 17-NOV-14 1-131 (CHEM) < 0.321 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 35

Exposure Pathway - Waterborne Ground Water Location C-10 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-FEB-14 MN-54 1.3 17-FEB-14 CO-58 1.0 17-FEB-14 FE-59 2.7 17-FEB-14 CO-60 1.3 17-FEB-14 ZN-65 2.7 17-FEB-14 ZR-NB-95 2.0 17-FEB-14 CS-134 2.4 17-FEB-1 4 CS-137 2.9 17-FEB-14 BA-LA- 140 2.8 17-FEB-14 H-3 147.0 17-FEB-14 1-131 (CHEM) 0.295 21-MAY-14 MN-54 2.9 21-MAY-14 CO-58 2.6 21-MAY-14 FE-59 6.0 21-MAY-14 CO-60 1.9 21-MAY-14 ZN-65 6.3 21-MAY-14 ZR-NB-95 3.3 21-MAY-14 CS-134 3.3 21-MAY-14 CS-137 2.8 21-MAY-14 BA-LA-140 2.4 21-MAY-14 H-3 145.0 21-MAY-14 1-131 (CHEM) 0.364 25-AUG-14 MN-54 1.4 25-AUG-14 CO-58 2.7 25-AUG-14 FE-59 3.9 25-AUG-1 4 CO-60 1.4 25-AUG-14 ZN-65 3.1 25-AUG-14 ZR-NB-95 2.3 25-AUG-14 CS-134 3.7 25-AUG-14 CS-137 3.4 25-AUG-14 BA-LA-140 2.5 25-AUG-14 H-3 176.0 25-AUG-14 1-131 (CHEM) 0.214 17-NOV-14 MN-54 4.3 17-NOV-14 CO-58 3.6 17-NOV-14 FE-59 6.9 17-NOV-14 CO-60 2.7 17-NOV-14 ZN-65 6.3 17-NOV-14 ZR-NB-95 2.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 36

Exposure Pathway - Waterborne Ground Water Location C-10 Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 17-NOV-14 CS-1 34 < 5.2 17-NOV-14 CS-1 37 < 3.6 17-NOV-14 BA-LA-1 40 < 1.9 17-NOV-14 H-3 < 179.0 17-NOV- 14 1-131 (CHEM) < 0.324 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 37

Exposure Pathway - Waterborne Ground Water Location C-49 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-FEB-14 MN-54 2.3 17-FEB-14 CO-58 2.1 17-FEB-14 FE-59 4.4 17-FEB-14 CO-60 1.3 17-FEB-1 4 ZN-65 4.1 17-FEB-14 ZR-NB-95 1.9 17-FEB-14 CS-134 2.2 17-FEB-14 CS-1 37 2.7 17-FEB-14 BA-LA-140 1.1 17-FEB-14 H-3 147.0 17-FEB-14 1-131 (CHEM) 0.406 21-MAY-14 MN-54 2.8 21-MAY-14 CO-58 2.7 21-MAY-14 FE-59 6.4 21-MAY-14 CO-60 2.2 21-MAY-14 ZN-65 4.3 21-MAY-14 ZR-NB-95 4.9 21-MAY-1 4 CS-134 4.0 21-MAY-1 4 CS-1 37 3.3 21-MAY-14 BA-LA-140 2.3 21-MAY-1 4 H-3 145.0 21-MAY-14 1-131 (CHEM) 0.328 25-AUG-1 4 MN-54 3.7 25-AUG-14 CO-58 4.2 25-AUG-14 FE-59 6.2 25-AUG-14 CO-60 3.7 25-AUG-14 ZN-65 4.4 25-AUG-14 ZR-NB-95 4.9 25-AUG-14 CS-134 5.6 25-AUG-14 CS-137 6.0 25-AUG-14 BA-LA- 140 4.6 25-AUG-14 H-3 176.0 25-AUG-14 1-131 (CHEM) 0.315 17-NOV-14 MN-54 2.4 17-NOV-14 CO-58 0.8 17-NOV-14 FE-59 4.3 17-NOV-14 CO-60 2.1 17-NOV-14 ZN-65 3.6 17-NOV-14 ZR-NB-95 2.9 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 38

Exposure Pathway - Waterborne Ground Water Location C-49 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-NOV-14 CS-1 34 < 2.6 17-NOV-14 CS-1 37 < 3.1 17-NOV-14 BA-LA-140 < 2.5 17-NOV-14 H-3 < 179.0 17-NOV-14 1-131 (CHEM) < 0.34 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 39

Exposure Pathway - Waterborne Ground Water Location F-1 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 24-FEB-14 MN-54 4.4 24-FEB-14 CO-58 4.9 24-FEB-1 4 FE-59 6.3 24-FEB-14 CO-60 5.6 24-FEB-14 ZN-65 15.3 24-FEB-14 ZR-NB-95 8.1 24-FEB-14 CS-134 5.6 24-FEB-14 CS-137 5.3 24-FEB-14 BA-LA-140 6.2 24-FEB-14 H-3 138.0 24-FEB-14 1-131 (CHEM) 0.262 21-MAY-14 MN-54 1.7 21-MAY-14 CO-58 2.5 21 -MAY- 14 FE-59 4.5 21-MAY-1 4 CO-60 2.7 21 -MAY- 14 ZN-65 4.1 21 -MAY- 14 ZR-NB-95 2.1 21-MAY-14 CS-134 2.9 21-MAY-14 CS-137 2.4 21-MAY-14 BA-LA-140 3.0 21-MAY-14 H-3 145.0 21-MAY-14 1-131 (CHEM) 0.298 25-AUG-14 MN-54 2.5 25-AUG-14 CO-58 1.4 25-AUG-14 FE-59 1.6 25-AUG-14 CO-60 2.3 25-AUG-14 ZN-65 2.8 25-AUG-14 ZR-NB-95 2.8 25-AUG-14 CS-1 34 2.5 25-AUG-14 CS-1 37 1.6 25-AUG-14 BA-LA-140 2.4 25-AUG-14 H-3 176.0 25-AUG-14 1-131 (CHEM) 0.24 17-NOV-14 MN-54 2.7 17-NOV-14 CO-58 1.9 17-NOV-14 FE-59 3.6 17-NOV-14 CO-60 2.7 17-NOV-14 ZN-65 6.7 17-NOV-14 ZR-NB-95 2.9 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 40

Exposure Pathway - Waterborne Ground Water Location F-I Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-NOV-14 CS-134 < 3.0 17-NOV-14 CS-137 < 2.6 17-NOV-14 BA-LA- 140 < 2.4 17-NOV-14 H-3 < 179.0 17-NOV-14 1-131 (CHEM) < 0.329 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 41

Exposure Pathway - Waterborne Ground Water Location G-2 Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 26-JUN-14 MN-54 2.0 26-JUN-14 CO-58 1.4 26-JUN-14 FE-59 2.9 26-JUN-14 CO-60 2.3 26-JUN-14 ZN-65 5.3 26-JUN-14 ZR-NB-95 3.0 26-JUN-14 CS-134 2.9 26-JUN-14 CS-1 37 3.3 26-JUN-14 BA-LA- 140 3.3 26-JUN-14 H-3 142.0 26-JUN-14 1-131 (CHEM) 0.402 25-AUG-14 MN-54 2.0 25-AUG-14 CO-58 3.0 25-AUG-14 FE-59 7.0 25-AUG-14 CO-60 2.4 25-AUG-14 ZN-65 7.4 25-AUG-14 ZR-NB-95 3.0 25-AUG-14 CS-1 34 3.6 25-AUG-14 CS-137 3.1 25-AUG-14 BA-LA-1 40 2.9 25-AUG-14 H-3 176.0 25-AUG-14 1-131 (CHEM) 0.234 17-NOV-14 MN-54 2.5 17-NOV-14 CO-58 2.5 17-NOV-14 FE-59 5.0 17-NOV-14 CO-60 1.8 17-NOV-14 ZN-65 4.2 17-NOV-14 ZR-NB-95 2.6 17-NOV-14 CS-134 3.1 17-NOV-14 CS-137 2.8 17-NOV-14 BA-LA-140 1.6 17-NOV-14 H-3 179.0 17-NOV-14 1-131 (CHEM) 0.432 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 42

Exposure Pathway - Waterborne Ground Water Location J-1 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-FEB-14 MN-54 3.2 Duplicate 17-FEB-14 MN-54 3.5 17-FEB-14 CO-58 3.2 17-FEB-14 CO-58 2.1 Duplicate 17-FEB-1 4 FE-59 6.0 Duplicate 17-FEB-1 4 FE-59 5.0 17-FEB-14 CO-60 1.9 17-FEB-1 4 CO-60 1.8 Duplicate 17-FEB-1 4 ZN-65 7.1 Duplicate 17-FEB-14 ZN-65 6.3 17-FEB-14 ZR-NB-95 4.4 17-FEB-14 ZR-NB-95 2.0 Duplicate 17-FEB-14 CS-134 4.2 17-FEB-14 CS-1 34 2.4 Duplicate 17-FEB-14 CS-137 2.6 17-FEB-14 CS-1 37 3.2 Duplicate 17-FEB-14 BA-LA-1 40 2.6 Duplicate 17-FEB-14 BA-LA- 140 3.4 17-FEB-14 H-3 147.0 Duplicate 17-FEB-14 H-3 147.0 17-FEB-14 1-131 (CHEM) 0.419 17-FEB-14 1-131 (CHEM) 0.412 Duplicate 22-MAY-14 MN-54 5.6 22-MAY-14 CO-58 3.0 22-MAY-14 FE-59 5.0 22-MAY-14 CO-60 3.4 22-MAY-14 ZN-65 10.3 22-MAY-14 ZR-NB-95 3.7 22-MAY-14 CS-134 6.1 22-MAY-14 CS-1 37 4.8 22-MAY-1 4 BA-LA- 140 6.0 22-MAY-14 H-3 145.0 22-MAY-14 1-131 (CHEM) 0.319 25-AUG-14 MN-54 2.3 25-AUG-14 CO-58 4.2 25-AUG-14 FE-59 7.9 25-AUG-14 CO-60 3.6 25-AUG-14 ZN-65 11.4 25-AUG-14 ZR-NB-95 5.8 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 43

Exposure Pathway - Waterborne Ground Water Location J-1 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 25-AUG-14 CS-1 34 4.8 25-AUG-14 CS-1 37 4.8 25-AUG-14 BA-LA- 140 3.9 25-AUG-14 H-3 176.0 25-AUG-14 1-131 (CHEM) 0.283 17-NOV-14 MN-54 2.9 17-NOV-14 CO-58 3.3 17-NOV-14 FE-59 2.8 17-NOV-14 CO-60 2.6 17-NOV-14 ZN-65 9.0 17-NOV-14 ZR-NB-95 3.6 17-NOV-14 CS-134 4.5 17-NOV-14 CS-1 37 4.5 17-NOV-14 BA-LA-1 40 1.8 17-NOV-14 H-3 179.0 17-NOV-14 1-131 (CHEM) 0.303 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 44

Exposure Pathway - Waterborne Ground Water Location J-2 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-FEB-14 MN-54 4.4 17-FEB-14 CO-58 3.2 17-FEB-14 FE-59 6.3 17-FEB-14 CO-60 2.8 17-FEB-14 ZN-65 9.2 17-FEB-14 ZR-NB-95 5.1 17-FEB-14 CS-134 4.4 17-FEB-1 4 CS-137 4.0 17-FEB-1 4 BA-LA- 140 3.7 17-FEB-14 H-3 147.0 17-FEB-14 1-131 (CHEM) 0.291 21-MAY-1 4 MN-54 2.8 21-MAY-14 CO-58 1.4 21-MAY-14 FE-59 3.7 21-MAY-14 CO-60 1.8 21-MAY-14 ZN-65 3.6 21-MAY-1 4 ZR-NB-95 3.1 21 -MAY- 14 CS-134 4.3 21 -MAY- 14 CS-137 3.3 21-MAY-14 BA-LA-140 2.2 21-MAY-14 H-3 145.0 21-MAY-14 1-131 (CHEM) 0.303 25-AUG-14 MN-54 3.4 25-AUG-14 CO-58 2.8 25-AUG-14 FE-59 5.7 25-AUG-14 CO-60 1.4 25-AUG-14 ZN-65 3.6 25-AUG-14 ZR-NB-95 2.7 25-AUG-14 CS-134 3.5 25-AUG-14 CS-137 3.0 25-AUG-14 BA-LA-140 2.3 25-AUG-14 H-3 176.0 25-AUG-14 1-131 (CHEM) 0.264 17-NOV-14 MN-54 3.1 17-NOV-14 CO-58 2.8 17-NOV-14 FE-59 3.3 17-NOV- 14 CO-60 1.8 17-NOV-14 ZN-65 6.3 17-NOV-14 ZR-NB-95 3.9 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 45

Exposure Pathway - Waterborne Ground Water Location J-2 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-NOV-14 CS-134 < 3.3 17-NOV-14 CS-137 < 2.9 17-NOV-14 BA-LA-140 < 2.7 17-NOV-14 H-3 < 179.0 17-NOV-14 1-131 (CHEM) < 0.296 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 46

Exposure Pathway - Waterborne Ground Water Location L-49 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-FEB-14 MN-54 2.7 17-FEB-14 CO-58 3.8 17-FEB-14 FE-59 4.4 17-FEB-14 CO-60 1.8 17-FEB-14 ZN-65 2.8 17-FEB-14 ZR-NB-95 2.7 17-FEB-14 CS-1 34 3.4 17-FEB-14 CS-137 2.6 17-FEB-14 BA-LA- 140 3.0 17-FEB-14 H-3 147.0 17-FEB-14 1-131 (CHEM) 0.358 21-MAY-14 MN-54 2.7 21-MAY-14 CO-58 2.5 21-MAY-14 FE-59 3.8 21-MAY-14 CO-60 2.3 21-MAY-14 ZN-65 4.3 21-MAY-14 ZR-NB-95 1.9 21-MAY-14 CS-134 2.0 21 -MAY- 14 CS-1 37 2.8 21 -MAY- 14 BA-LA-140 2.2 21-MAY-14 H-3 145.0 21-MAY-14 1-131 (CHEM) 0.23 25-AUG-14 MN-54 3.6 25-AUG-14 CO-58 3.2 25-AUG-14 FE-59 4.4 25-AUG-14 CO-60 2.0 25-AUG-14 ZN-65 2.5 25-AUG-14 ZR-NB-95 3.7 25-AUG-14 CS-134 4.9 25-AUG-1 4 CS-1 37 3.8 25-AUG-1 4 BA-LA- 140 2.3 25-AUG-14 H-3 176.0 25-AUG-1 4 1-131 (CHEM) 0.317 17-NOV-14 MN-54 3.4 17-NOV-14 CO-58 2.7 17-NOV-14 FE-59 5.0 17-NOV-14 CO-60 3.3 17-NOV-14 ZN-65 5.2 17-NOV-14 ZR-NB-95 3.5 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 47

Exposure Pathway - Waterborne Ground Water Location L-49 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 17-NOV-14 CS-1 34 < 3.9 17-NOV-14 CS-1 37 < 3.2 17-NOV-14 BA-LA- 140 < 1.7 17-NOV-14 H-3 < 179.0 17-NOV-14 1-131 (CHEM) < 0.414 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 48

Exposure Pathway - Waterborne Drinking Water Location BW-15 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 03-FEB-14 MN-54 < 1.6 03-FEB-14 CO-58 < 2.5 03-FEB-14 FE-59 < 5.3 03-FEB-14 CO-60 < 2.5 03-FEB-14 ZN-65 < 5.2 03-FEB-14 ZR-NB-95 < 3.3 03-FEB-14 CS-1 34 < 2.7 03-FEB-14 CS-1 37 < 2.2 03-FEB-14 BA-LA- 140 < 2.5 03-FEB-14 GROSS BETA 2.008+/- 0.612 03-FEB-14 1-131 (CHEM) < 0.304 03-MAR-14 MN-54 < 3.0 03-MAR-14 CO-58 < 2.4 03-MAR-1 4 FE-59 < 4.0 03-MAR-14 CO-60 < 2.7 03-MAR-14 ZN-65 < 6.8 03-MAR-14 ZR-NB-95 < 3.4 03-MAR-14 CS-134 < 3.4 03-MAR-14 CS-137 < 2.2 03-MAR-14 BA-LA- 140 < 2.3 03-MAR-14 GROSS BETA 1.702+/- 0.582 03-MAR-14 1-131 (CHEM) < 0.344 02-APR-1 4 MN-54 < 3.1 02-APR-14 CO-58 < 2.1 02-APR-14 FE-59 < 4.2 02-APR-14 CO-60 < 1.9 02-APR-14 ZN-65 4.1 02-APR-14 ZR-NB-95 2.2 02-APR-14 CS-134 2.9 02-APR-14 CS-137 3.6 02-APR-14 BA-LA- 140 3.3 02-APR-14 GROSS BETA 3.462+/- 0.763 02-APR-1 4 1-131 (CHEM) 0.457 05-MAY-14 MN-54 2.9 05-MAY- 14 CO-58 1.1 05-MAY-14 FE-59 3.2 05-MAY-1 4 CO-60 1.4 05-MAY-14 ZN-65 1.5 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 49

Exposure Pathway - Waterborne Drinking Water Location BW-1 5 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 05-MAY- 14 ZR-NB-95 < 2.4 05-MAY- 14 CS-134 < 2.6 05-MAY-14 CS-137 < 3.3 05-MAY-14 BA-LA- 140 < 2.3 05-MAY-14 GROSS BETA 1.497+/- 0.575 05-MAY-14 1-131 (CHEM) < 0.214 02-JUN-14 MN-54 < 1.7 02-JUN-14 CO-58 < 2.0 02-JUN-14 FE-59 < 2.9 02-JUN-14 CO-60 < 2.0 02-JUN-14 ZN-65 < 3.4 02-JUN-14 ZR-NB-95 < 1.5 02-JUN-14 CS-134 < 2.2 02-JUN-14 CS-137 < 1.6 02-JUN-14 BA-LA-140 < 2.8 02-JUN-14 GROSS BETA 2.768+/- 0.667 02-JUN-14 1-131 (CHEM) < 0.176 07-JUL-14 MN-54 < 1.7 07-JUL-14 CO-58 < 2.3 07-JUL-14 FE-59 < 4.1 07-JUL-14 CO-60 < 2.0 07-JUL-14 ZN-65 < 4.9 07-JUL-14 ZR-NB-95 < 2.5 07-JUL-14 CS-1 34 < 3.5 07-JUL-14 CS-1 37 < 2.3 07-JUL-14 BA-LA- 140 < 2.5 07-JUL-14 GROSS BETA 2.458 +/- 0.65 07-JUL-14 1-131 (CHEM) < 0.354 04-AUG-1 4 MN-54 < 1.4 04-AUG-14 CO-58 < 2.4 04-AUG-14 FE-59 < 2.8 04-AUG-14 CO-60 < 2.7 04-AUG-14 ZN-65 < 3.0 04-AUG-14 ZR-NB-95 < 2.9 04-AUG-14 CS-134 < 3.1 04-AUG-14 CS-137 < 3.1 04-AUG-14 BA-LA- 140 < 2.7 04-AUG-14 GROSS BETA 1.879+/- 0.599 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 50

Exposure Pathway - Waterborne Drinking Water Location BW-15 Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 04-AUG-14 1-131 (CHEM) < 0.163 02-SEP-14 MN-54 < 3.5 02-SEP-14 CO-58 < 3.8 02-SEP-14 FE-59 < 5.2 02-SEP-14 CO-60 < 1.4 02-SEP-14 ZN-65 < 4.2 02-SEP-14 ZR-NB-95 4.1 02-SEP-14 CS-134 4.3 02-SEP-14 CS-137 3.8 02-SEP-14 BA-LA- 140 3.1 02-SEP-14 GROSS BETA 2.131 +/- 0.611 02-SEP-14 1-131 (CHEM) 0.292 06-OCT-14 MN-54 2.0 06-OCT-1 4 CO-58 < 1.5 06-OCT-14 FE-59 < 5.2 06-OCT-14 CO-60 1.8 06-OCT-14 ZN-65 2.5 06-OCT-14 ZR-NB-95 2.6 06-OCT-14 CS-134 2.6 06-OCT-14 CS-137 3.0 06-OCT-1 4 BA-LA-140 2.5 06-OCT- 14 GROSS BETA 2.275+/- 0.468 06-OCT-14 1-131 (CHEM) 0.457 03-NOV-14 MN-54 5.9 03-NOV-14 CO-58 4.0 03-NOV-14 FE-59 3.1 03-NOV-14 CO-60 5.7 03-NOV-14 ZN-65 5.4 03-NOV-14 ZR-NB-95 5.5 03-NOV- 14 CS-134 6.3 03-NOV-14 CS-137 3.9 03-NOV-14 BA-LA-140 2.9 03-NOV-14 GROSS BETA 2.335 +/- 0.468 03-NOV-14 1-131 (CHEM) 0.308 02-DEC-14 MN-54 2.6 02-DEC-14 CO-58 2.1 02-DEC-14 FE-59 6.5 02-DEC-14 CO-60 2.6 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 51

Exposure Pathway - Waterborne Drinking Water Location BW-1 5 Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 02-DEC-14 ZN-65 4.2 02-DEC-1 4 ZR-NB-95 3.0 02-DEC-14 CS-134 3.9 02-DEC-14 CS-1 37 3.6 02-DEC-14 BA-LA-140 1.7 02-DEC-14 GROSS BETA 1.869+/- 0.613 02-DEC-14 1-131 (CHEM) 0.466 05-JAN-15 MN-54 2.9 05-JAN-15 CO-58 2.2 05-JAN-15 FE-59 3.8 05-JAN-15 CO-60 1.3 05-JAN-15 ZN-65 4.7 05-JAN- 15 ZR-NB-95 3.2 05-JAN-15 CS-134 3.2 05-JAN-15 CS-1 37 2.7 05-JAN-15 BA-LA-140 1.9 05-JAN-15 GROSS BETA 2.i93 +/- 0.336 05-JAN-1 5 1-131 (CHEM) 0.263 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 52

Exposure Pathway - Waterborne Drinking Water Location 1O-DW Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 03-FEB-1 4 MN-54

• 1.8 03-FEB-1 4 CO-58

• 1.7 03-FEB-1 4 FE-59 4.9 03-FEB-1 4 CO-60 1.7 03-FEB-1 4 ZN-65 2.3 03-FEB-14 ZR-NB-95 2.5 03-FEB-14 CS-134 2.5 03-FEB-14 CS-1 37 2.7 03-FEB-14 BA-LA-1 40 1.5 03-FEB-14 GROSS BETA 3.262 +/- 0.707 03-FEB-14 1-131 (CHEM) 0.298 03-MAR-14 MN-54 2.2 03-MAR- 14 CO-58 1.1 03-MAR- 14 FE-59 3.6 03-MAR- 14 CO-60 3.2 03-MAR-1 4 ZN-65 2.3 03-MAR-14 ZR-NB-95 2.5 03-MAR-14 CS-134 2.3 03-MAR-14 CS-1 37 2.8 03-MAR-14 BA-LA-1 40 2.7 03-MAR-14 GROSS BETA 2.931 +/- 0.695 03-MAR-14 1-131 (CHEM) 0.342 02-APR-1 4 MN-54 2.6 02-APR-1 4 CO-58 1.5 02-APR-1 4 FE-59 3.0 02-APR-14 CO-60 2.7 02-APR-14 ZN-65 3.3 02-APR-14 ZR-NB-95 3.2 02-APR-14 CS-134 3.0 02-APR-14 CS-137 3.5 02-APR-14 BA-LA-140 2.9 02-APR-14 GROSS BETA 3.296 +/- 0.864 02-APR-14 1-131 (CHEM) 0.479 05-MAY-1 4 MN-54 2.5 05-MAY-14 CO-58 2.6 05-MAY- 14 FE-59 5.2 05-MAY-14 CO-60 1.6 05-MAY-14 ZN-65 2.9 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 53

Exposure Pathway - Waterborne Drinking Water Location 1O-DW Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 05-MAY-14 ZR-NB-95 1.7 05-MAY-1 4 CS-134 3.5 05-MAY-14 CS-137 3.1 05-MAY-14 BA-LA-1 40 3.0 05-MAY- 14 GROSS BETA 1.642+/- 0.586 05-MAY- 14 1-131 (CHEM) 0.204 02-JUN-14 MN-54 1.3 02-JUN-14 CO-58 1.9 02-JUN-14 FE-59 3.4 02-JUN-14 CO-60 2.3 02-JUN-14 ZN-65 2.6 02-JUN-14 ZR-NB-95 2.5 02-JUN-14 CS-134 2.7 02-JUN-14 CS-137 2.9 02-JUN-14 BA-LA- 140 2.2 02-JUN-14 GROSS BETA 2.139+/- 0.615 02-JUN-14 1-131 (CHEM) 0.31 07-JUL-14 MN-54 1.9 07-JUL-14 CO-58 3.0 07-JUL-14 FE-59 1.9 07-JUL-14 CO-60 2.6 07-JUL-14 ZN-65 4.0 07-JUL-14 ZR-NB-95 3.3 07-JUL-14 CS-134 2.6 07-JUL-14 CS-137 2.8 07-JUL-14 BA-LA- 140 1.8 07-JUL-14 GROSS BETA 3.408+/- 0.757 07-JUL-14 1-131 (CHEM) 0.491 04-AUG-14 MN-54 4.0 04-AUG-14 CO-58 2.8 04-AUG-14 FE-59 5.9 04-AUG-14 CO-60 3.6 04-AUG-14 ZN-65 9.3 04-AUG-14 ZR-NB-95 2.3 04-AUG-14 CS-134 4.2 04-AUG-14 CS-137 4.2 04-AUG-14 BA-LA- 140 3.8 04-AUG-14 GROSS BETA 3.807 +/- 0.746 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 54

Exposure Pathway - Waterborne Drinking Water Location 1O-DW Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 04-AUG-14 1-131 (CHEM) < 0.249 02-SEP-14 MN-54 < 2.6 02-SEP-14 CO-58 < 2.2 02-SEP-14 FE-59 < 5.8 02-SEP-14 CO-60 < 2.9 02-SEP-14 ZN-65 < 7.6 02-SEP-14 ZR-NB-95 < 2.6 02-SEP-14 CS-134 < 4.1 02-SEP-14 CS-137 2.7 02-SEP-14 BA-LA-140 1.5 02-SEP-14 GROSS BETA 2.106 +/- 0.626 02-SEP-14 1-131 (CHEM) < 0.28 06-OCT-14 MN-54 < 1.9 06-OCT-1 4 CO-58 < 1.9 06-OCT-14 FE-59 < 5.8 06-OCT-14 CO-60 < 2.6 06-OCT-14 ZN-65 < 2.3 06-OCT-14 ZR-NB-95 < 3.7 06-OCT-14 CS-134 3.8 06-OCT-14 CS-1 37 2.4 06-OCT-14 BA-LA-1 40 2.3 06-OCT-14 GROSS BETA 2.273 +/- 0.461 06-OCT-14 1-131 (CHEM) 0.428 03-NOV-14 MN-54 3.4 03-NOV-1 4 CO-58 1.6 03-NOV-14 FE-59 3.7 03-NOV-1 4 CO-60 2.8 03-NOV-14 ZN-65 7.6 03-NOV-14 ZR-NB-95 2.8 03-NOV-14 CS-134 4.4 03-NOV-14 CS-137 5.6 03-NOV-14 BA-LA- 140 2.3 03-NOV- 14 GROSS BETA 3.329 +/- 0.553 03-NOV-14 1-131 (CHEM) 0.346 02-DEC-14 MN-54 2.3 02-DEC-14 CO-58 2.7 02-DEC-14 FE-59 3.9 02-DEC-14 CO-60 2.5 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 55

Exposure Pathway - Waterborne Drinking Water Location 1O-DW Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 02-DEC-14 ZN-65 5.9 02-DEC-14 ZR-NB-95 3.1 02-DEC-14 CS-134 3.7 02-DEC-14 CS-137 4.3 02-DEC-14 BA-LA-140 2.0 02-DEC-14 GROSS BETA 3.639 +/- 0.814 02-DEC-14 1-131 (CHEM) 0.275 05-JAN-15 MN-54 2.4 05-JAN-15 CO-58 2.0 05-JAN-15 FE-59 3.1 05-JAN-15 CO-60 2.6 05-JAN-15 ZN-65 4.1 05-JAN-15 ZR-NB-95 1.9 05-JAN-15 CS-1 34 2.8 05-JAN-15 CS-1 37 3.3 05-JAN-15 BA-LA-1 40 2.0 05-JAN-15 GROSS BETA 2.596+/- 0.352 05-JAN-1 5 1-131 (CHEM) 0.211 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 56

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location BW-1 5 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 02-APR-14 H-3 < 149 07-JUL-14 H-3 < 136 06-OCT-14 H-3 < 158 05-JAN-15 H-3 < 177 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 57

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location 10-DW Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 02-APR- 14 H-3 < 149 07-JUL-14 H-3 < 136 06-OCT-14 H-3 < 158 05-JAN-15 H-3 < 177 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 58

Exposure Pathway - Waterborne Shoreline Sediment Location DC Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 23-JUN-14 K-40 5,731.5 +/- 471.0 23-JUN-14 MN-54 27.3 23-JUN-14 CO-58 16.8 23-JUN-14 FE-59 29.4 23-JUN-14 CO-60 14.0 23-JUN-14 ZN-65 29.3 23-JUN-14 CS-134 18.7 23-JUN-14 CS-137 22.5 06-OCT-14 K-40 8,551.8+1 558.5 06-OCT-14 MN-54 22.3 06-OCT-14 CO-58 21.3 06-OCT-14 FE-59 32.1 06-OCT-14 CO-60 10.1 06-OCT-14 ZN-65 44.4 06-OCT-14 CS-134 14.1 06-OCT-14 CS-137 20.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 59

Exposure Pathway - Waterborne Shoreline Sediment Location JRR Collection Nuclide Concentration Duplicate Date (pCilKg Dry) Analysis 24-JUN-14 K-40 11,494.0 +1- 789.4 24-JUN-14 K-40 11,807.0 +1- 699.1 Duplicate 24-JUN-14 MN-54 27.1 24-JUN-14 MN-54 32.8 Duplicate 24-JUN-14 CO-58 21.7 24-JUN-14 CO-58 31.6 Duplicate 24-JUN-14 FE-59 40.7 Duplicate 24-JUN-14 FE-59 75.7 24-JUN-14 CO-60 26.9 Duplicate 24-JUN-14 CO-60 9.4 24-JUN-14 ZN-65 64.2 Duplicate 24-JUN-14 ZN-65 59.6 24-JUN-14 CS-134 26.5 Duplicate 24-JUN-14 CS-134 23.2 24-JUN-14 CS-137 24.1 24-JUN-14 CS-137 28.4 Duplicate 06-OCT-14 K-40 12,704.0+1 648.7 06-OCT-14 MN-54 21.2 06-OCT-14 CO-58 25.0 06-OCT-14 FE-59 33.9 06-OCT-14 CO-60 11.0 06-OCT-14 ZN-65 49.5 06-OCT-14 CS-1 34 16.8 06-OCT-1 4 CS-1 37 18.7 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 60

Exposure Pathway - Ingestion Fish Location CCL Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 22-MAY-14 CHANNEL CATFISH K-40 3,240.1 +/- 342.8 22-MAY-1 4 CHANNEL CATFISH MN-54 9.5 22-MAY-14 CHANNEL CATFISH CO-58 8.8 22-MAY-14 CHANNEL CATFISH FE-59 30.7 22-MAY-14 CHANNEL CATFISH CO-60 11.6 22-MAY-14 CHANNEL CATFISH ZN-65 37.2 22-MAY-14 CHANNEL CATFISH 1-131 27.4 22-MAY- 14 CHANNEL CATFISH CS-134 13.6 22-MAY-14 CHANNEL CATFISH CS-137 10.8 22-MAY-1 4 CHANNEL CATFISH H-3 10,336.0 +/- 265.0 22-MAY-14 COMMON CARP K-40 340.6 22-MAY-14 COMMON CARP MN-54 11.8 22-MAY- 14 COMMON CARP CO-58 2,780.0 +/- 8.7 22-MAY-14 COMMON CARP FE-59 24.9 22-MAY-14 COMMON CARP CO-60 10.4 22-MAY-1 4 COMMON CARP ZN-65 27.6 22-MAY-14 COMMON CARP 1-131 38.7 22-MAY-14 COMMON CARP CS-134 13.7 22-MAY-14 COMMON CARP CS-137 8.7 22-MAY- 14 COMMON CARP H-3 9,512.0 +1- 250.0 22-MAY-14 FRESHWATER DRUM K-40 3,367.4 +/- 367.9 22-MAY-14 FRESHWATER DRUM MN-54 10.4 22-MAY-14 FRESHWATER DRUM CO-58 16.2 22-MAY-14 FRESHWATER DRUM FE-59 32.1 22-MAY-14 FRESHWATER DRUM CO-60 11.9 22-MAY- 14 FRESHWATER DRUM ZN-65 19.5 22-MAY- 14 FRESHWATER DRUM 1-131 21.9 22-MAY-14 FRESHWATER DRUM CS-134 14.2 22-MAY- 14 FRESHWATER DRUM CS-137 14.3 22-MAY-1 4 FRESHWATER DRUM H-3 10,500.0 +/- 326.0 22-MAY-14 RIVER CARPSUCKER K-40 3,223.6 +/- 364.0 22-MAY-1 4 RIVER CARPSUCKER MN-54 13.3 22-MAY-14 RIVER CARPSUCKER CO-58 9.1 22-MAY-14 RIVER CARPSUCKER FE-59 16.1 22-MAY-14 RIVER CARPSUCKER CO-60 11.2 22-MAY- 14 RIVER CARPSUCKER ZN-65 21.1 22-MAY-14 RIVER CARPSUCKER 1-131 34.8 22-MAY- 14 RIVER CARPSUCKER CS-134 12.0 22-MAY-1 4 RIVER CARPSUCKER CS-137 13.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 61

Exposure Pathway - Ingestion Fish Location CCL Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 22-MAY-14 RIVER CARPSUCKER H-3 9,191.0+/- 231.0 22-MAY- 14 SMALLMOUTH BASS K-40 3,400.6 +/- 373.2 22-MAY-1 4 SMALLMOUTH BASS MN-54 12.2 22-MAY-1 4 SMALLMOUTH BASS CO-58 10.1 22-MAY-14 SMALLMOUTH BASS FE-59 17.8 22-MAY-14 SMALLMOUTH BASS CO-60 8.6 22-MAY-14 SMALLMOUTH BASS ZN-65 12.9 22-MAY-14 SMALLMOUTH BASS 1-131 36.2 22-MAY-14 SMALLMOUTH BASS CS-134 12.9 22-MAY- 14 SMALLMOUTH BASS CS-137 11.8 22-MAY-1 4 SMALLMOUTH BASS H-3 9,653.0 +/- 256.0 22-MAY-1 4 SMALLMOUTH BUFFALO K-40 3,229.8 +/- 378.8 22-MAY-14 SMALLMOUTH BUFFALO MN-54 11.8 22-MAY-14 SMALLMOUTH BUFFALO CO-58 8.8 22-MAY-14 SMALLMOUTH BUFFALO FE-59 22.0 22-MAY-14 SMALLMOUTH BUFFALO CO-60 14.0 22-MAY-1 4 SMALLMOUTH BUFFALO ZN-65 15.3 22-MAY-14 SMALLMOUTH BUFFALO 1-131 38.2 22-MAY-14 SMALLMOUTH BUFFALO CS-134 10.7 22-MAY-14 SMALLMOUTH BUFFALO CS-137 13.4 22-MAY-14 SMALLMOUTH BUFFALO H-3 10,073.0 +1- 258.0 22-MAY-14 WHITE BASS K-40 2,934.4 +/- 342.6 22-MAY-14 WHITE BASS MN-54 12.1 22-MAY-14 WHITE BASS CO-58 14.3 22-MAY-1 4 WHITE BASS FE-59 16.8 22-MAY-1 4 WHITE BASS CO-60 12.2 22-MAY-1 4 WHITE BASS ZN-65 10.5 22-MAY-1 4 WHITE BASS 1-131 22.4 22-MAY-14 WHITE BASS CS-134 13.8 22-MAY-1 4 WHITE BASS CS-1 37 14.8 22-MAY- 14 WHITE BASS H-3 10,468.0 +/- 274.0 21-OCT-14 BLUE CATFISH K-40 3,022.3 +/- 344.0 21-OCT-14 BLUE CATFISH MN-54 10.0 21-OCT-14 BLUE CATFISH CO-58 10.2 21-OCT-14 BLUE CATFISH FE-59 27.4 21-OCT-14 BLUE CATFISH CO-60 11.1 21-OCT-14 BLUE CATFISH ZN-65 26.1 21-OCT-1 4 BLUE CATFISH 1-131 56.6 21-OCT-14 BLUE CATFISH CS-1 34 11.8 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 62

Exposure Pathway - Ingestion Fish Location CCL Collection Sample Nuclide Concentration Duplicate Date Description (pCilKg Wet) Analysis 21-OCT-14 BLUE CATFISH CS-137 12.6 21-OCT-14 BLUE CATFISH H-3 8,049.0 +/- 300.0 21-OCT-14 CHANNEL CATFISH K-40 3,198.4 +/- 378.6 21-OCT-14 CHANNEL CATFISH MN-54 7.1 21-OCT-14 CHANNEL CATFISH CO-58 9.2 21-OCT-14 CHANNEL CATFISH FE-59 12.8 21-OCT-14 CHANNEL CATFISH CO-60 7.0 21-OCT-14 CHANNEL CATFISH ZN-65 26.2 21-OCT-14 CHANNEL CATFISH 1-131 31.8 21-OCT-14 CHANNEL CATFISH CS-134 13.7 21-OCT-14 CHANNEL CATFISH CS-137 12.4 21-OCT-14 CHANNEL CATFISH H-3 7,237.0 +/- 282.0 21-OCT-14 COMMON CARP K-40 2,653.8 +1- 296.4 21-OCT-14 COMMON CARP MN-54 11.2 21-OCT-14 COMMON CARP CO-58 9.4 21-OCT-14 COMMON CARP FE-59 17.8 21-OCT-14 COMMON CARP CO-60 9.9 21-OCT-14 COMMON CARP ZN-65 16.0 21-OCT-14 COMMON CARP 1-131 43.6 21-OCT-14 COMMON CARP CS-134 10.3 21-OCT-14 COMMON CARP CS-1 37 7.5 21-OCT-1 4 COMMON CARP H-3 6,703.0 +1- 281.0 21-OCT-1 4 FRESHWATER DRUM K-40 2,835.6 +/- 313.0 21-OCT-14 FRESHWATER DRUM MN-54 9.0 21-OCT-1 4 FRESHWATER DRUM CO-58 10.6 21-OCT-1 4 FRESHWATER DRUM FE-59 23.4 21-OCT-14 FRESHWATER DRUM CO-60 5.9 21-OCT-14 FRESHWATER DRUM ZN-65 21.8 21-OCT-14 FRESHWATER DRUM 1-131 36.6 21-OCT-14 FRESHWATER DRUM CS-134 12.0 21-OCT-14 FRESHWATER DRUM CS-137 13.6 21-OCT-14 FRESHWATER DRUM H-3 7,136.0 +1- 274.0 21-OCT-14 WHITE BASS K-40 3,304.1 +1- 376.5 21-OCT-14 WHITE BASS K-40 3,090.9 +1- 309.5 Duplicate 21-OCT-14 WHITE BASS MN-54 10.4 21-OCT-14 WHITE BASS MN-54 12.3 Duplicate 21-OCT-14 WHITE BASS CO-58 10.3 Duplicate 21-OCT-14 WHITE BASS CO-58 17.1 21-OCT-1 4 WHITE BASS FE-59 26.3 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 63

Exposure Pathway - Ingestion Fish Location CCL Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 21-OCT-14 WHITE BASS FE-59 33.5 Duplicate 21-OCT-14 WHITE BASS CO-60 8.9 21-OCT-14 WHITE BASS CO-60 10.0 Duplicate 21-OCT-14 WHITE BASS ZN-65 25.4 21-OCT-14 WHITE BASS ZN-65 26.8 Duplicate 21 -OCT-1 4 WHITE BASS 1-131 45.9 21-OCT-14 WHITE BASS 1-131 37.6 Duplicate 21-OCT-14 WHITE BASS CS-134 15.8 21-OCT-14 WHITE BASS CS-134 10.7 Duplicate 21-OCT-14 WHITE BASS CS-137 11.5 Duplicate 21-OCT-14 WHITE BASS CS-137 17.1 21-OCT-14 WHITE BASS H-3 7,509.0 +/- 283.0 Duplicate 21-OCT-14 WHITE BASS H-3 7,969.0 +/- 291.0 21-OCT-14 WIPER K-40 3,430.8 +/- 347.9 21-OCT-14 WIPER MN-54 10.1 21-OCT-14 WIPER CO-58 10.6 21-OCT-14 WIPER FE-59 23.4 21-OCT-14 WIPER CO-60 5.4 21-OCT-14 WIPER ZN-65 30.6 21-OCT-14 WIPER 1-131 55.4 21-OCT-14 WIPER CS-134 6,166.0 +/- 13.1 21-OCT-14 WIPER CS-137 14.1 21-OCT-14 WIPER H-3 265.0 22-OCT-14 SMALLMOUTH BUFFALO K-40 3,006.5 +/- 338.9 22-OCT-14 SMALLMOUTH BUFFALO MN-54 9.9 22-OCT-14 SMALLMOUTH BUFFALO CO-58 18.5 22-OCT-14 SMALLMOUTH BUFFALO FE-59 37.0 22-OCT-14 SMALLMOUTH BUFFALO CO-60 9.4 22-OCT-1 4 SMALLMOUTH BUFFALO ZN-65 29.2 22-OCT-1 4 SMALLMOUTH BUFFALO 1-131 50.0 22-OCT-14 SMALLMOUTH BUFFALO CS-134 13.7 22-OCT-1 4 SMALLMOUTH BUFFALO CS-137 15.8 22-OCT-14 SMALLMOUTH BUFFALO H-3 7,321 .0 +/- 275.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 64

Exposure Pathway - Ingestion Fish Location JRR Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 24-JUN-14 BIGMOUTH BUFFALO K-40 3,336.4 +/- 381.6 24-JUN-14 BIGMOUTH BUFFALO MN-54 11.9 24-JUN-14 BIGMOUTH BUFFALO CO-58 10.9 24-JUN-14 BIGMOUTH BUFFALO FE-59 14.6 24-JUN-14 BIGMOUTH BUFFALO CO-60 15.7 24-JUN-14 BIGMOUTH BUFFALO ZN-65 29.0 24-JUN-14 BIGMOUTH BUFFALO 1-131 25.4 24-JUN-14 BIGMOUTH BUFFALO CS-134 16.2 24-JUN-14 BIGMOUTH BUFFALO CS-137 14.8 24-JUN-14 BIGMOUTH BUFFALO H-3 95.0 24-JUN-14 COMMON CARP K-40 3,677.0 +/- 383.0 24-JUN-14 COMMON CARP MN-54 11.1 24-JUN-14 COMMON CARP CO-58 11.8 24-JUN-14 COMMON CARP FE-59 32.5 24-JUN-14 COMMON CARP CO-60 13.3 24-JUN-14 COMMON CARP ZN-65 31.9 24-JUN-14 COMMON CARP 1-131 18.6 24-JUN-14 COMMON CARP CS-1 34 12.4 24-JUN-14 COMMON CARP CS-137 15.0 24-JUN-14 COMMON CARP H-3 106.0 24-JUN-14 FLATHEAD CATFISH K-40 3,336.8 +/- 387.8 24-JUN-14 FLATHEAD CATFISH MN-54 13.7 24-JUN-14 FLATHEAD CATFISH CO-58 13.5 24-JUN-14 FLATHEAD CATFISH FE-59 31.2 24-JUN-14 FLATHEAD CATFISH CO-60 9.9 24-JUN-14 FLATHEAD CATFISH ZN-65 32.2 24-JUN-14 FLATHEAD CATFISH 1-131 25.1 24-JUN-14 FLATHEAD CATFISH CS-134 13.2 24-JUN-14 FLATHEAD CATFISH CS-1 37 12.6 24-JUN-14 FLATHEAD CATFISH H-3 104.0 24-JUN-14 SMALLMOUTH BUFFALO K-40 3,086.2 +/- 372.6 24-JUN-14 SMALLMOUTH BUFFALO MN-54 11.5 24-JUN-14 SMALLMOUTH BUFFALO CO-58 17.6 24-JUN-14 SMALLMOUTH BUFFALO FE-59 18.3 24-JUN-14 SMALLMOUTH BUFFALO CO-60 12.1 24-JUN-14 SMALLMOUTH BUFFALO ZN-65 24.8 24-JUN-14 SMALLMOUTH BUFFALO 1-131 25.4 24-JUN-14 SMALLMOUTH BUFFALO CS-134 12.8 24-JUN-14 SMALLMOUTH BUFFALO CS-137 13.7 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 65

Exposure Pathway - Ingestion Fish Location JRR Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 24-JUN-14 SMALLMOUTH BUFFALO H-3 105.0 05-NOV-14 CHANNEL CATFISH K-40 3,565.9 +/- 377.7 05-NOV-14 CHANNEL CATFISH MN-54 13.7 05-NOV-14 CHANNEL CATFISH CO-58 7.3 05-NOV-14 CHANNEL CATFISH FE-59 27.0 05-NOV-14 CHANNEL CATFISH CO-60 13.4 05-NOV-14 CHANNEL CATFISH ZN-65 23.2 05-NOV-14 CHANNEL CATFISH 1-131 25.6 05-NOV-14 CHANNEL CATFISH CS-1 34 13.4 05-NOV-14 CHANNEL CATFISH CS-137 14.0 05-NOV-14 CHANNEL CATFISH H-3 141.0 05-NOV-14 COMMON CARP K-40 3,029.0 +/- 333.2 05-NOV-14 COMMON CARP MN-54 10.6 05-NOV-14 COMMON CARP CO-58 9.4 05-NOV-1 4 COMMON CARP FE-59 23.6 05-NOV-14 COMMON CARP CO-60 13.1 05-NOV-14 COMMON CARP ZN-65 23.6 05-NOV-1 4 COMMON CARP 1-131 21.1 05-NOV-14 COMMON CARP CS-1 34 12.4 05-NOV-14 COMMON CARP CS-137 12.5 05-NOV-14 COMMON CARP H-3 143.0 05-NOV-14 SMALLMOUTH BUFFALO K-40 3,384.4 +/- 423.2 Duplicate 05-NOV-14 SMALLMOUTH BUFFALO K-40 3,054.2 +/- 364.5 05-NOV- 14 SMALLMOUTH BUFFALO MN-54 21.8 Duplicate 05-NOV-14 SMALLMOUTH BUFFALO MN-54 12.7 05-NOV-14 SMALLMOUTH BUFFALO CO-58 16.7 05-NOV-14 SMALLMOUTH BUFFALO CO-58 16.0 Duplicate 05-NOV-1 4 SMALLMOUTH BUFFALO FE-59 20.2 Duplicate 05-NOV-14 SMALLMOUTH BUFFALO FE-59 24.7 05-NOV-14 SMALLMOUTH BUFFALO CO-60 6.9 Duplicate 05-NOV-14 SMALLMOUTH BUFFALO CO-60 16.7 05-NOV-14 SMALLMOUTH BUFFALO ZN-65 42.0 Duplicate 05-NOV-14 SMALLMOUTH BUFFALO ZN-65 23.4 05-NOV-14 SMALLMOUTH BUFFALO 1-131 35.1 Duplicate 05-NOV-14 SMALLMOUTH BUFFALO 1-131 26.0 05-NOV-14 SMALLMOUTH BUFFALO CS-134 18.0 Duplicate 05-NOV-14 SMALLMOUTH BUFFALO CS-134 15.0 05-NOV-1 4 SMALLMOUTH BUFFALO CS-137 15.0 05-NOV-14 SMALLMOUTH BUFFALO CS-137 12.5 Duplicate 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 66

Exposure Pathway - Ingestion Fish Location JRR Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 05-NOV-14 SMALLMOUTH BUFFALO H-3 < 149.0 05-NOV-14 SMALLMOUTH BUFFALO H-3 < 149.0 Duplicate 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 67

Exposure Pathway - Ingestion Food/Garden Location A-3 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 03-NOV-1 4 HORSERADISH LEAVES BE-7 807.9 +1- 278.6 Duplicate 03-NOV-14 HORSERADISH LEAVES BE-7 737.7 +1- 178.1 03-NOV-14 HORSERADISH LEAVES K-40 6,253.3 +1- 541.4 Duplicate 03-NOV-14 HORSERADISH LEAVES K-40 6,555.0 +1- 491.6 03-NOV- 14 HORSERADISH LEAVES MN-54 15.3 Duplicate 03-NOV-14 HORSERADISH LEAVES MN-54 16.5 03-NOV-14 HORSERADISH LEAVES CO-58 19.9 Duplicate 03-NOV-14 HORSERADISH LEAVES CO-58 13.4 03-NOV-14 HORSERADISH LEAVES FE-59 23.1 Duplicate 03-NOV-14 HORSERADISH LEAVES FE-59 29.8 03-NOV-14 HORSERADISH LEAVES CO-60 9.4 Duplicate 03-NOV-14 HORSERADISH LEAVES CO-60 17.8 03-NOV-1 4 HORSERADISH LEAVES ZN-65 37.0 Duplicate 03-NOV-14 HORSERADISH LEAVES ZN-65 23.5 03-NOV-1 4 HORSERADISH LEAVES ZR-NB-95 20.0 Duplicate 03-NOV-14 HORSERADISH LEAVES ZR-NB-95 21.4 03-NOV-14 HORSERADISH LEAVES 1-131 49.1 Duplicate 03-NOV-1 4 HORSERADISH LEAVES 1-131 25.8 03-NOV-1 4 HORSERADISH LEAVES CS-134 19.3 Duplicate 03-NOV-14 HORSERADISH LEAVES CS-134 13.9 03-NOV-14 HORSERADISH LEAVES CS-1 37 13.5 Duplicate 03-NOV-14 HORSERADISH LEAVES CS-137 21.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 68

Exposure Pathway - Ingestion Food/Garden Location B-1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 19-MAY-14 HORSERADISH LEAVES BE-7 528.7 +1- 174.3 Duplicate 19-MAY-14 HORSERADISH LEAVES BE-7 617.3 +1- 175.1 19-MAY-14 HORSERADISH LEAVES K-40 5,135.8 +1- 437.3 Duplicate 19-MAY-14 HORSERADISH LEAVES K-40 5,297.9 +1- 437.6 19-MAY- 14 HORSERADISH LEAVES MN-54 12.5 Duplicate 19-MAY-14 HORSERADISH LEAVES MN-54 7.2 19-MAY-14 HORSERADISH LEAVES CO-58 8.9 Duplicate 19-MAY-1 4 HORSERADISH LEAVES CO-58 14.2 19-MAY-14 HORSERADISH LEAVES FE-59 32.2 Duplicate 19-MAY- 14 HORSERADISH LEAVES FE-59 26.0 19-MAY-14 HORSERADISH LEAVES CO-60 12.4 Duplicate 19-MAY-14 HORSERADISH LEAVES CO-60 11.3 19-MAY-14 HORSERADISH LEAVES ZN-65 18.4 Duplicate 19-MAY-14 HORSERADISH LEAVES ZN-65 19.6 19-MAY-14 HORSERADISH LEAVES ZR-NB-95 8.1 19-MAY-14 HORSERADISH LEAVES ZR-NB-95 11.4 Duplicate 19-MAY-14 HORSERADISH LEAVES 1-131 22.6 Duplicate 19-MAY-14 HORSERADISH LEAVES 1-131 26.4 19-MAY-1 4 HORSERADISH LEAVES CS-134 14.1 Duplicate 19-MAY-1 4 HORSERADISH LEAVES CS-134 12.9 19-MAY- 14 HORSERADISH LEAVES CS-137 8.8 19-MAY-14 HORSERADISH LEAVES CS-137 16.4 Duplicate 09-JUN-14 HORSERADISH LEAVES BE-7 795.5 +1- 173.4 09-JUN-14 HORSERADISH LEAVES K-40 4,480.3 +1- 398.0 09-JUN-14 HORSERADISH LEAVES MN-54 13.1 09-JUN-14 HORSERADISH LEAVES CO-58 11.9 09-JUN-14 HORSERADISH LEAVES FE-59 26.6 09-JUN-14 HORSERADISH LEAVES CO-60 7.8 09-JUN-14 HORSERADISH LEAVES ZN-65 28.5 09-JUN-14 HORSERADISH LEAVES ZR-NB-95 12.0 09-JUN-14 HORSERADISH LEAVES 1-131 25.5 09-JUN-14 HORSERADISH LEAVES CS-134 12.2 09-JUN-14 HORSERADISH LEAVES CS-137 10.9 28-JUL-14 HORSERADISH LEAVES BE-7 467.3 +1- 176.8 28-JUL-14 HORSERADISH LEAVES K-40 5,006.9 +1- 430.9 28-JUL-14 HORSERADISH LEAVES MN-54 9.6 28-JUL-14 HORSERADISH LEAVES CO-58 11.3 28-JUL-14 HORSERADISH LEAVES FE-59 31.3 28-JUL-14 HORSERADISH LEAVES CO-60 10.7 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 69

Exposure Pathway - Ingestion Food/Garden Location B-1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 28-JUL-14 HORSERADISH LEAVES ZN-65 20.4 28-JUL-14 HORSERADISH LEAVES ZR-NB-95 16.2 28-JUL-14 HORSERADISH LEAVES 1-131 28.3 28-JUL-14 HORSERADISH LEAVES CS-134 14.9 28-JUL-14 HORSERADISH LEAVES CS-137 13.1 20-OCT-14 HORSERADISH LEAVES BE-7 382.0 +1- 159.6 20-OCT-14 HORSERADISH LEAVES K-40 3,833.9 +1- 365.7 20-OCT-1 4 HORSERADISH LEAVES MN-54 8.6 20-OCT-1 4 HORSERADISH LEAVES CO-58 12.8 20-OCT-14 HORSERADISH LEAVES FE-59 36.2 20-OCT-14 HORSERADISH LEAVES CO-60 7.5 20-OCT-14 HORSERADISH LEAVES ZN-65 26.6 20-OCT-1 4 HORSERADISH LEAVES ZR-NB-95 18.0 20-OCT-14 HORSERADISH LEAVES 1-131 34.8 20-OCT-14 HORSERADISH LEAVES CS-134 14.9 20-OCT-14 HORSERADISH LEAVES CS-137 16.0 03-NOV-14 HORSERADISH LEAVES BE-7 363.3 +1- 206.1 03-NOV-14 HORSERADISH LEAVES K-40 5,782.8 +1- 502.4 03-NOV-14 HORSERADISH LEAVES MN-54 17.0 03-NOV-14 HORSERADISH LEAVES CO-58 13.5 03-NOV-14 HORSERADISH LEAVES FE-59 42.4 03-NOV- 14 HORSERADISH LEAVES CO-60 9.1 03-NOV-14 HORSERADISH LEAVES ZN-65 22.7 03-NOV-14 HORSERADISH LEAVES ZR-NB-95 19.4 03-NOV-14 HORSERADISH LEAVES 1-131 37.6 03-NOV-14 HORSERADISH LEAVES CS-134 17.6 03-NOV-14 HORSERADISH LEAVES CS-137 19.9 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 70

Exposure Pathway - Ingestion Food/Garden Location D-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 19-MAY-14 HORSERADISH LEAVES BE-7 631.5 +1- 173.4 19-MAY- 14 HORSERADISH LEAVES K-40 5,315.4 +1- 486.0 19-MAY-14 HORSERADISH LEAVES MN-54 8.4 19-MAY-1 4 HORSERADISH LEAVES CO-58 12.4 19-MAY- 14 HORSERADISH LEAVES FE-59 27.2 19-MAY- 14 HORSERADISH LEAVES CO-60 15.6 19-MAY-14 HORSERADISH LEAVES ZN-65 18.0 19-MAY-14 HORSERADISH LEAVES ZR-NB-95 17.8 19-MAY-14 HORSERADISH LEAVES 1-131 29.8 19-MAY-14 HORSERADISH LEAVES CS-134 13.8 19-MAY-14 HORSERADISH LEAVES CS-137 17.2 09-JUN-14 HORSERADISH LEAVES BE-7 704.6 +1- 206.9 09-JUN-14 HORSERADISH LEAVES K-40 5,287.5 +1- 485.6 09-JUN-14 HORSERADISH LEAVES MN-54 14.5 09-JUN-14 HORSERADISH LEAVES CO-58 7.7 09-JUN-14 HORSERADISH LEAVES FE-59 27.1 09-JUN-14 HORSERADISH LEAVES CO-60 7.6 09-JUN-14 HORSERADISH LEAVES ZN-65 26.3 09-JUN-14 HORSERADISH LEAVES ZR-NB-95 9.5 09-JUN-14 HORSERADISH LEAVES 1-131 28.0 09-JUN-14 HORSERADISH LEAVES CS-134 14.8 09-JUN-14 HORSERADISH LEAVES CS-137 9.5 28-JUL-14 HORSERADISH LEAVES BE-7 185.6 28-JUL-14 HORSERADISH LEAVES K-40 6,569.2+1 494.3 28-JUL-14 HORSERADISH LEAVES MN-54 13.8 28-JUL-14 HORSERADISH LEAVES CO-58 11.3 28-JUL-14 HORSERADISH LEAVES FE-59 26.7 28-JUL-14 HORSERADISH LEAVES CO-60 11.3 28-JUL-14 HORSERADISH LEAVES ZN-65 23.4 28-JUL-14 HORSERADISH LEAVES ZR-NB-95 16.8 28-JUL-14 HORSERADISH LEAVES 1-131 25.5 28-JUL-14 HORSERADISH LEAVES CS-134 15.7 28-JUL-14 HORSERADISH LEAVES CS-137 16.5 25-AUG-14 RHUBARB BE-7 190.1 25-AUG-14 RHUBARB K-40 4,190.6+1 401.8 25-AUG-14 RHUBARB MN-54 11.0 25-AUG-14 RHUBARB CO-58 15.3 25-AUG-14 RHUBARB FE-59 24.6 25-AUG-14 RHUBARB CO-60 16.9 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 71

Exposure Pathway - Ingestion Food/Garden Location D-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 25-AUG-1 4 RHUBARB ZN-65 24.5 25-AUG-14 RHUBARB ZR-NB-95 14.8 25-AUG-14 RHUBARB 1-131 41.7 25-AUG-14 RHUBARB CS-134 14.9 25-AUG-14 RHUBARB CS-1 37 19.6 15-SEP-14 RHUBARB BE-7 758.9 +/- 217.8 15-SEP-14 RHUBARB K-40 3,345.1 +/- 477.9 15-SEP-14 RHUBARB MN-54 24.9 15-SEP-14 RHUBARB CO-58 20.0 15-SEP-1 4 RHUBARB FE-59 19.9 15-SEP-14 RHUBARB CO-60 24.7 15-SEP-14 RHUBARB ZN-65 38.0 15-SEP-14 RHUBARB ZR-NB-95 21.6 15-SEP-14 RHUBARB 1-131 40.5 15-SEP-14 RHUBARB CS-1 34 23.0 15-SEP-14 RHUBARB CS-137 16.4 20-OCT-14 HORSERADISH LEAVES BE-7 897.3+1 188.2 20-OCT-14 HORSERADISH LEAVES K-40 5,113.6+1 416.5 20-OCT-14 HORSERADISH LEAVES MN-54 10.8 20-OCT-14 HORSERADISH LEAVES CO-58 11.7 20-OCT-1 4 HORSERADISH LEAVES FE-59 12.8 20-OCT-14 HORSERADISH LEAVES CO-60 12.8 20-OCT-14 HORSERADISH LEAVES ZN-65 15.8 20-OCT-14 HORSERADISH LEAVES ZR-NB-95 11.3 20-OCT-14 HORSERADISH LEAVES 1-131 22.0 20-OCT-14 HORSERADISH LEAVES CS-1 34 11.9 20-OCT-14 HORSERADISH LEAVES CS-1 37 14.6 03-NOV-14 RHUBARB BE-7 680.4+1 227.3 03-NOV-14 RHUBARB K-40 7,594.0+1 569.7 03-NOV-14 RHUBARB MN-54 19.5 03-NOV-14 RHUBARB CO-58 9.0 03-NOV-1 4 RHUBARB FE-59 12.4 03-NOV-14 RHUBARB CO-60 12.1 03-NOV-14 RHUBARB ZN-65 22.7 03-NOV-14 RHUBARB ZR-NB-95 19.5 03-NOV-14 RHUBARB 1-131 36.8 03-NOV-14 RHUBARB CS-134 16.9 03-NOV- 14 RHUBARB CS-1 37 14.7 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 72

Exposure Pathway - Ingestion Food/Garden Location H-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 19-MAY- 14 HORSERADISH LEAVES BE-7 759.7 +1- 161.2 19-MAY-14 HORSERADISH LEAVES K-40 7,221.8 +1- 478.4 19-MAY-14 HORSERADISH LEAVES MN-54 7.9 19-MAY-14 HORSERADISH LEAVES CO-58 12.7 19-MAY-14 HORSERADISH LEAVES FE-59 38.4 19-MAY-14 HORSERADISH LEAVES CO-60 11.8 19-MAY-14 HORSERADISH LEAVES ZN-65 28.5 19-MAY- 14 HORSERADISH LEAVES ZR-NB-95 11.5 19-MAY-14 HORSERADISH LEAVES 1-131 21.1 19-MAY-14 HORSERADISH LEAVES CS-134 14.1 19-MAY-14 HORSERADISH LEAVES CS-137 14.2 09-JUN-14 HORSERADISH LEAVES BE-7 661.2 +1- 169.0 09-JUN-14 HORSERADISH LEAVES K-40 4,673.3 +1- 377.2 09-JUN-14 HORSERADISH LEAVES MN-54 12.4 09-JUN-14 HORSERADISH LEAVES CO-58 11.4 09-JUN-14 HORSERADISH LEAVES FE-59 26.8 09-JUN-14 HORSERADISH LEAVES CO-60 7.7 09-JUN-14 HORSERADISH LEAVES ZN-65 18.8 09-JUN-14 HORSERADISH LEAVES ZR-NB-95 12.4 09-JUN-14 HORSERADISH LEAVES 1-131 26.4 09-JUN-14 HORSERADISH LEAVES CS-134 11.2 09-JUN-14 HORSERADISH LEAVES CS-1 37 9.7 28-JUL-14 HORSERADISH LEAVES BE-7 509.1 +1- 155.3 28-JUL-14 HORSERADISH LEAVES K-40 6,430.5 +1- 521.2 28-JUL-14 HORSERADISH LEAVES MN-54 22.3 28-JUL-14 HORSERADISH LEAVES CO-58 16.4 28-JUL-14 HORSERADISH LEAVES FE-59 25.5 28-JUL-14 HORSERADISH LEAVES CO-60 15.3 28-JUL-14 HORSERADISH LEAVES ZN-65 23.2 28-JUL-14 HORSERADISH LEAVES ZR-NB-95 22.3 28-JUL-14 HORSERADISH LEAVES 1-131 28.4 28-JUL-1 4 HORSERADISH LEAVES CS-1 34 16.0 28-JUL-14 HORSERADISH LEAVES CS-1 37 15.4 25-AUG-14 HORSERADISH LEAVES BE-7 441.7 +1- 207.2 25-AUG-14 HORSERADISH LEAVES BE-7 437.5 175.1 Duplicate 25-AUG-14 HORSERADISH LEAVES K-40 7,856.8 +1- 472.4 Duplicate 25-AUG-14 HORSERADISH LEAVES K-40 8,401.1 +1- 594.9 25-AUG-14 HORSERADISH LEAVES MN-54 17.8 25-AUG-1 4 HORSERADISH LEAVES MN-54 21.2 Duplicate 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 73

Exposure Pathway - Ingestion Food/Garden Location H-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCilKg Wet) Analysis 25-AUG-14 HORSERADISH LEAVES CO-58

• 17.5 25-AUG-14 HORSERADISH LEAVES CO-58

• 20.7 Duplicate 25-AUG-14 HORSERADISH LEAVES FE-59

• 39.0 Duplicate 25-AUG-14 HORSERADISH LEAVES FE-59

• 23.5 25-AUG-14 HORSERADISH LEAVES CO-60

• 21.7 Duplicate 25-AUG-14 HORSERADISH LEAVES CO-60

• 16.9 25-AUG-14 HORSERADISH LEAVES ZN-65

• 25.4 Duplicate 25-AUG-14 HORSERADISH LEAVES ZN-65

• 32.4 25-AUG-14 HORSERADISH LEAVES ZR-NB-95

• 26.6 Duplicate 25-AUG-14 HORSERADISH LEAVES ZR-NB-95

• 19.4 25-AUG-14 HORSERADISH LEAVES 1-131

• 43.4 25-AUG-14 HORSERADISH LEAVES 1-131

• 43.1 Duplicate 25-AUG-14 HORSERADISH LEAVES CS-134

• 18.4 Duplicate 25-AUG-14 HORSERADISH LEAVES CS-134

• 17.2 25-AUG-14 HORSERADISH LEAVES CS-137

• 20.3 25-AUG-14 HORSERADISH LEAVES CS-137

• 21.7 Duplicate 15-SEP-14 HORSERADISH LEAVES BE-7 354.1 +/- 186.5 15-SEP-14 HORSERADISH LEAVES K-40 7,321.4 +/- 559.8 15-SEP-14 HORSERADISH LEAVES MN-54

• 16.9 15-SEP-14 HORSERADISH LEAVES CO-58

• 19.9 15-SEP-1 4 HORSERADISH LEAVES FE-59

• 44.8 15-SEP-1 4 HORSERADISH LEAVES CO-60

• 19.7 15-SEP-14 HORSERADISH LEAVES ZN-65

• 18.7 15-SEP-14 HORSERADISH LEAVES ZR-NB-95

• 15.7 15-SEP-14 HORSERADISH LEAVES 1-131

• 30.7 15-SEP-14 HORSERADISH LEAVES CS-134

• 19.0 15-SEP-14 HORSERADISH LEAVES CS-137

• 15.3 20-OCT-14 HORSERADISH LEAVES BE-7 360.2 +/- 151.9 20-OCT-14 HORSERADISH LEAVES K-40 4,327.5 +/- 397.4 20-OCT-14 HORSERADISH LEAVES MN-54 < 18.3 20-OCT-14 HORSERADISH LEAVES CO-58 < 15.8 20-OCT-1 4 HORSERADISH LEAVES FE-59 < 28.8 20-OCT-14 HORSERADISH LEAVES CO-60 < 10.0 20-OCT-14 HORSERADISH LEAVES ZN-65 < 29.2 20-OCT-14 HORSERADISH LEAVES ZR-NB-95 < 17.3 20-OCT-14 HORSERADISH LEAVES 1-131 < 29.5 20-OCT-14 HORSERADISH LEAVES CS-134 < 15.8 20-OCT-14 HORSERADISH LEAVES CS-137 < 15.6 03-NOV- 14 HORSERADISH LEAVES BE-7 286.9 +/- 106.8 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 74

Exposure Pathway - Ingestion Food/Garden Location H-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 03-NOV-14 HORSERADISH LEAVES K-40 5,471.6 +/- 381.7 03-NOV-14 HORSERADISH LEAVES MN-54 13.8 03-NOV-14 HORSERADISH LEAVES CO-58 12.0 03-NOV-14 HORSERADISH LEAVES FE-59 26.7 03-NOV-14 HORSERADISH LEAVES CO-60 11.1 03-NOV-14 HORSERADISH LEAVES ZN-65 15.7 03-NOV-14 HORSERADISH LEAVES ZR-NB-95 11.8 03-NOV-14 HORSERADISH LEAVES 1-131 25.7 03-NOV-14 HORSERADISH LEAVES CS-134 12.9 03-NOV-14 HORSERADISH LEAVES CS-1 37 9.3 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 75

Exposure Pathway - Ingestion FoodlGarden Location Q-6 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 15-SEP-14 GREEN BEAN LEAVES BE-7 878.5+/ 248.7 15-SEP-14 GREEN BEAN LEAVES K-40 5,047.3 +/- 506.3 15-SEP-14 GREEN BEAN LEAVES MN-54 21.0 15-SEP-14 GREEN BEAN LEAVES CO-58 21.9 15-SEP-14 GREEN BEAN LEAVES FE-59 34.6 15-SEP-14 GREEN BEAN LEAVES CO-60 17.6 15-SEP-14 GREEN BEAN LEAVES ZN-65 34.1 15-SEP-14 GREEN BEAN LEAVES ZR-NB-95 21.3 15-SEP-14 GREEN BEAN LEAVES 1-131 27.1 15-SEP-14 GREEN BEAN LEAVES CS-1 34 21.8 15-SEP-14 GREEN BEAN LEAVES CS-137 20.5 03-NOV-14 KALE BE-7 178.0 03-NOV-14 KALE K-40 7,685.8+- 510.8 03-NOV- 14 KALE MN-54 9.2 03-NOV-14 KALE CO-58 17.9 03-NOV-1 4 KALE FE-59 33.2 03-NOV-1 4 KALE CO-60 9.1 03-NOV-14 KALE ZN-65 34.7 03-NOV-14 KALE ZR-NB-95 13.1 03-NOV- 14 KALE 1-131 21.4 03-NOV- 14 KALE CS-134 14.8 03-NOV-14 KALE CS-1 37 19.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 76

Exposure Pathway - Ingestion Food/Garden Location R-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 28-JUL-14 HORSERADISH LEAVES BE-7 772.1 +1- 193.6 28-JUL-14 HORSERADISH LEAVES K-40 6,161.5 +1- 573.5 28-JUL-14 HORSERADISH LEAVES MN-54 22.0 28-JUL-14 HORSERADISH LEAVES CO-58 17.0 28-JUL-14 HORSERADISH LEAVES FE-59 47.6 28-JUL-14 HORSERADISH LEAVES CO-60 16.0 28-JUL-14 HORSERADISH LEAVES ZN-65 21.9 28-JUL-14 HORSERADISH LEAVES ZR-NB-95 20.3 28-JUL-14 HORSERADISH LEAVES 1-131 38.1 28-JUL-14 HORSERADISH LEAVES CS-134 18.7 28-JUL-14 HORSERADISH LEAVES CS-137 18.0 25-AUG-14 HORSERADISH LEAVES BE-7 990.3 +1- 214.8 25-AUG-14 HORSERADISH LEAVES K-40 7,255.9 +1- 528.0 25-AUG-14 HORSERADISH LEAVES MN-54 14.7 25-AUG-14 HORSERADISH LEAVES CO-58 18.6 25-AUG-14 HORSERADISH LEAVES FE-59 50.6 25-AUG-14 HORSERADISH LEAVES CO-60 14.3 25-AUG-14 HORSERADISH LEAVES ZN-65 38.1 25-AUG-14 HORSERADISH LEAVES ZR-NB-95 18.8 25-AUG-14 HORSERADISH LEAVES 1-131 53.1 25-AUG-14 HORSERADISH LEAVES CS-134 15.3 25-AUG-14 HORSERADISH LEAVES CS-137 17.3 15-SEP-14 HORSERADISH LEAVES BE-7 787.5 +/- 206.2 15-SEP-14 HORSERADISH LEAVES K-40 5,652.7 +/- 483.6 15-SEP-14 HORSERADISH LEAVES MN-54 12.4 15-SEP-14 HORSERADISH LEAVES CO-58 13.7 15-SEP-14 HORSERADISH LEAVES FE-59 25.8 15-SEP-14 HORSERADISH LEAVES CO-60 12.6 15-SEP-14 HORSERADISH LEAVES ZN-65 25.8 15-SEP-14 HORSERADISH LEAVES ZR-NB-95 19.9 15-SEP-14 HORSERADISH LEAVES 1-131 28.1 15-SEP-1 4 HORSERADISH LEAVES CS-134 17.8 15-SEP-1 4 HORSERADISH LEAVES CS-1 37 15.8 03-NOV-14 HORSERADISH LEAVES BE-7 784.7+- 208.3 03-NOV-14 HORSERADISH LEAVES K-40 5,520.5+1 452.0 03-NOV- 14 HORSERADISH LEAVES MN-54 9.2 03-NOV-14 HORSERADISH LEAVES CO-58 8.8 03-NOV-14 HORSERADISH LEAVES FE-59 20.7 03-NOV-14 HORSERADISH LEAVES CO-60 12.3 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 77

Exposure Pathway - Ingestion Food/Garden Location R-2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 03-NOV-14 HORSERADISH LEAVES ZN-65 < 40.1 03-NOV-14 HORSERADISH LEAVES ZR-NB-95 < 12.0 03-NOV-14 HORSERADISH LEAVES 1-131 < 36.5 03-NOV-14 HORSERADISH LEAVES CS-134 < 14.6 03-NOV-14 HORSERADISH LEAVES CS-137 < 14.8 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 78

Exposure Pathway - Ingestion Feed and Forage Location NR-D1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 30-OCT-14 IRRIGATED SOYBEANS BE-7 < 104.3 30-OCT-14 IRRIGATED SOYBEANS K-40 12,544.0 +/- 548.3 30-OCT-14 IRRIGATED SOYBEANS MN-54 < 15.1 30-OCT-14 IRRIGATED SOYBEANS CO-58 < 8.6 30-OCT-14 IRRIGATED SOYBEANS FE-59 < 28.5 30-OCT-14 IRRIGATED SOYBEANS CO-60 < 6.9 30-OCT-1 4 IRRIGATED SOYBEANS ZN-65 < 37.8 30-OCT-14 IRRIGATED SOYBEANS ZR-NB-95 < 9.5 30-OCT-1 4 IRRIGATED SOYBEANS 1-131 < 13.8 30-OCT-14 IRRIGATED SOYBEANS CS-1 34 < 9.2 30-OCT-14 IRRIGATED SOYBEANS CS-1 37 < 11.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 79

Exposure Pathway - Ingestion Feed and Forage Location NR-D2 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 29-SEP-14 IRRIGATED CORN BE-7 < 49.1 29-SEP-14 IRRIGATED CORN K-40 2,788.4 +/- 227.0 29-SEP-14 IRRIGATED CORN MN-54 < 7.6 29-SEP-14 IRRIGATED CORN CO-58 < 9.9 29-SEP-14 IRRIGATED CORN FE-59 < 12.6 29-SEP-14 IRRIGATED CORN CO-60 < 5.8 29-SEP-14 IRRIGATED CORN ZN-65 < 16.3 29-SEP-14 IRRIGATED CORN ZR-NB-95 < 7.4 29-SEP-14 IRRIGATED CORN 1-131 < 14.4 29-SEP-14 IRRIGATED CORN CS-134 < 6.9 29-SEP-14 IRRIGATED CORN CS-1 37 < 8.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 80

Exposure Pathway - Ingestion Feed and Forage Location NR-U1 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 02-OCT-14 IRRIGATED CORN BE-7 49.2 02-OCT-14 IRRIGATED CORN BE-7 51.6 Duplicate 02-OCT-14 IRRIGATED CORN K-40 1,855.9 +/- 186.1 Duplicate 02-OCT-14 IRRIGATED CORN K-40 2,045.7 +/- 214.2 02-OCT-14 IRRIGATED CORN MN-54 4.3 Duplicate 02-OCT-14 IRRIGATED CORN MN-54 7.6 02-OCT-14 IRRIGATED CORN CO-58 7.6 Duplicate 02-OCT-14 IRRIGATED CORN CO-58 3.5 02-OCT-14 IRRIGATED CORN FE-59 6.8 Duplicate 02-OCT-14 IRRIGATED CORN FE-59 14.1 02-OCT-14 IRRIGATED CORN CO-60 7.6 Duplicate 02-OCT-14 IRRIGATED CORN CO-60 6.0 02-OCT-14 IRRIGATED CORN ZN-65 5.6 02-OCT-14 IRRIGATED CORN ZN-65 14.7 Duplicate 02-OCT-14 IRRIGATED CORN ZR-NB-95 6.8 02-OCT-14 IRRIGATED CORN ZR-NB-95 7.0 Duplicate 02-OCT-14 IRRIGATED CORN 1-131 12.1 02-OCT-1 4 IRRIGATED CORN 1-131 12.1 Duplicate 02-OCT-14 IRRIGATED CORN CS-134 8.1 Duplicate 02-OCT-14 IRRIGATED CORN CS-134 6.2 02-OCT-14 IRRIGATED CORN CS-137 4.6 02-OCT-14 IRRIGATED CORN CS-137 8.3 Duplicate 17-NOV-14 IRRIGATED SOYBEANS BE-7 78.3 17-NOV-14 IRRIGATED SOYBEANS K-40 13,841.0 +/- 483.5 17-NOV-14 IRRIGATED SOYBEANS MN-54 11.2 17-NOV-14 IRRIGATED SOYBEANS CO-58 13.0 17-NOV-14 IRRIGATED SOYBEANS FE-59 32.4 17-NOV-14 IRRIGATED SOYBEANS CO-60 8.5 17-NOV-14 IRRIGATED SOYBEANS ZN-65 30.6 17-NOV-14 IRRIGATED SOYBEANS ZR-NB-95 6.2 17-NOV-14 IRRIGATED SOYBEANS 1-131 12.3 17-NOV-14 IRRIGATED SOYBEANS CS-134 9.1 17-NOV-14 IRRIGATED SOYBEANS CS-137 9.7 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 81

Exposure Pathway - Aquatic Bottom Sediment Location DC Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 23-JUN-14 K-40 13,910.0 +/- 827.8 23-JUN-14 MN-54 < 27.7 23-JUN-14 CO-58 < 30.9 23-JUN-14 FE-59 < 30.9 23-JUN-14 CO-60 < 19.3 23-JUN-14 ZN-65 < 61.1 23-JUN-14 CS-134 < 25.7 23-JUN-14 CS-137 130.4 +/- 43.7 23-JUN-14 FE-55 < 15,023.0 06-OCT-14 K-40 12 ,932.0 +/- 746.2 06-OCT-14 MN-54 < 26.9 06-OCT-14 CO-58 < 22.3 06-OCT-14 FE-59 < 61.9 06-OCT-14 CO-60 < 18.5 06-OCT-14 ZN-65 < 46.3 06-OCT-14 CS-134 < 24.2 06-OCT-14 CS-137 117.9 +/- 44.6 06-OCT-14 FE-55 < 15,022.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 82

Exposure Pathway - Aquatic Bottom Sediment Location ESW 2014-8 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 05-NOV-14 K-40 9,597.7 +/- 614.1 05-NOV-14 MN-54 < 22.9 05-NOV-1 4 CO-58 < 18.6 05-NOV-1 4 FE-59 < 77.3 05-NOV-14 CO-60 < 15.7 05-NOV-14 ZN-65 < 39.4 05-NOV-14 CS-134 < 22.5 05-NOV-14 CS-137 < 25.2 05-NOV-14 FE-55 < 15,432.5 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 83

Exposure Pathway - Aquatic Bottom Sediment Location ESW CHAN-7 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 24-JUN-14 K-40 10,749.0 +/- 702.5 24-JUN-14 MN-54 18.7 24-JUN-14 CO-58 20.1 24-JUN-14 FE-59 35.3 24-JUN-14 CO-60 8.8 24-JUN-14 ZN-65 49.6 24-JUN-14 CS-134 22.6 24-JUN-14 CS-137 33.4+1 16.0 24-JUN-14 SR-89 214.8 24-JUN-14 SR-90 47.7 488.2+1 24-JUN-14 U-233/234 43.2 24-JUN-14 U-235 14.2+1 8.7 24-JUN-14 PU-239/240 5.7 24-JUN-14 U-238 361.7+1 37.5 24-JUN-14 AM-241 20.5 24-JUN-14 CM-242 50.2 24-JUN-14 CM-243/244 37.4 24-JUN-14 FE-55 15,428.0 24-JUN-14 NI-63 377.3 24-JUN-14 PU-238 5.7 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 84

Exposure Pathway - Aquatic Bottom Sediment Location JRR Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 24-JUN-14 K-40 16,906.0 +/- 901.7 24-JUN-14 MN-54 36.9 24-JUN-14 CO-58 24.8 24-JUN-14 FE-59 35.0 24-JUN-14 CO-60 13.1 24-JUN-14 ZN-65 59.2 24-JUN-14 CS-134 29.9 24-JUN-14 CS-137 132.3+1 43.0 06-OCT-14 K-40 17,639.0+1 878.9 06-OCT-14 MN-54 30.1 06-OCT-14 CO-58 23.1 06-OCT-14 FE-59 62.4 06-OCT-1 4 CO-60 11.4 06-OCT-1 4 ZN-65 54.5 06-OCT-14 CS-134 22.4 06-OCT-14 CS-1 37 119.6+- 41.9 06-OCT-14 SR-89 127.7 06-OCT-14 SR-90 43.8 06-OCT-14 244.2+-

U-233 33.5 06-OCT-14 U-235 11.4 +/- 7.9 06-OCT-14 FE-55 16,335.6 06-OCT-14 U-238 171.5+1 28.1 06-OCT-14 PU-239 7.5 06-OCT-14 AM-241 55.8 06-OCT-14 CM-242 39.5 06-OCT-14 CM-244 30.6 06-OCT-1 4 NI-63 435.7 06-OCT-1 4 PU-238 21.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 85

Exposure Pathway - Aquatic Bottom Sediment Location SC Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 14-MAY-14 K-40 11,340.0 +/- 732.6 14-MAY-14 MN-54 < 14.5 14-MAY-1 4 CO-58 < 20.0 14-MAY-1 4 FE-59 < 17.6 14-MAY-14 CO-60 < 12.2 14-MAY- 14 ZN-65 < 43.5 14-MAY-14 CS-134 < 20.3 14-MAY- 14 CS-137 < 22.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 86

Exposure Pathway - Aquatic Bottom Sediment Location UHS 2014-25 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 24-JUN-14 K-40 9,849.0 +/- 719.4 24-JUN-14 MN-54 29.9 24-JUN-14 CO-58 21.5 24-JUN-14 FE-59 66.6 24-JUN-14 CO-60 22.5 24-JUN-14 ZN-65 47.1 24-JUN-14 CS-1 34 24.3 24-JUN-14 CS-137 24.8 24-JUN-14 U-238 281.7+- 37.1 24-JUN-14 AM-241 13.5 24-JUN-14 CM-242 66.3 24-JUN-14 FE-55 15,316.0 24-JUN-14 PU-239/240 5.4 24-JUN-14 SR-89 177.0 24-JUN-14 NI-63 380.2 24-JUN-14 SR-90 73.3 24-JUN-14 CM-243/244 33.2 24-JUN-14 U-233/234 299.9+- 38.2 24-JUN-14 U-235 9.7 i- 7.6 24-JUN-14 PU-238 5.4 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 87

Exposure Pathway - Aquatic Bottom Sediment Location UHS 2014-26 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 24-JUN-14 K-40 11,860.0 +/- 716.8 24-JUN-14 MN-54 26.8 24-JUN-14 CO-58 31.0 24-JUN-14 FE-59 39.8 24-JUN-14 CO-60 20.6 24-JUN-14 ZN-65 42.9 24-JUN-14 CS-134 24.8 24-JUN-14 CS-137 50.5+1 26.6 24-JUN-14 U-233/234 335.2+1 36.8 24-JUN-14 SR-90 86.2 24-JUN-14 SR-89 211.5 24-JUN-14 NI-63 381.5 24-JUN-14 CM-243/244 49.3 24-JUN-14 PU-239/240 10.0 24-JUN-14 FE-55 18,070.2 24-JUN-14 CM-242 46.5 24-JUN-14 AM-241 28.5 24-JUN-14 U-238 281.0+1 33.7 24-JUN-14 PU-238 5.7 24-JUN-14 U-235 15.1+- 8.3 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 88

Exposure Pathway - Aquatic Bottom Sediment Location UHS 2014-27 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 24-JUN-14 K-40 13,282.0 +/- 799.0 24-JUN-14 MN-54 33.3 24-JUN-14 CO-58 27.2 24-JUN-14 FE-59 73.0 24-JUN-14 CO-60 5.1 24-JUN-14 ZN-65 54.7 24-JUN-14 CS-134 26.0 24-JUN-14 CS-137 93.5+1 38.3 24-JUN-14 CM-243/244 11.0 24-JUN-14 NI-63 449.5 24-JUN-14 SR-89 209.7 24-JUN-14 SR-90 94.1 24-JUN-14 451.5+-

U-233/234 42.6 24-JUN-14 U-235 16.8+1 8.6 24-JUN-14 PU-238 7.9 24-JUN-14 U-238 418.8+1 40.8 24-JUN-14 AM-241 6.4 24-JUN-14 CM-242 19.1 24-JUN-14 FE-55 15,474.7 24-JUN-14 PU-239/240 13.6 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 89

Exposure Pathway - Aquatic Bottom Sediment Location UHS 2014-28 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 24-JUN-14 K-40 12,029.0 +/- 706.4 24-JUN-14 MN-54 30.9 24-JUN-14 CO-58 26.8 24-JUN-14 FE-59 34.2 24-JUN-14 CO-60 33.4 +/- 16.0 24-JUN-14 ZN-65 44.5 24-JUN-14 CS-1 34 19.9 24-JUN-14 CS-1 37 66.1 +1- 34.8 24-JUN-14 SR-89 162.7 24-JUN-14 NI-63 431.4 24-JUN-14 SR-90 405.5 +1- 70.0 24-JUN-14 U-233/234 39.7 24-JUN-14 U-235 8.7 +/- 7.5 24-JUN-14 PU-238 10.7 24-JUN-14 U-238 360.0 +/- 37.9 24-JUN-14 AM-241 13.5 24-JUN-14 CM-242 22.0 24-JUN-14 CM-243/244 13.5 24-JUN-14 FE-55 14,974.0 24-JUN-14 PU-239/240 10.7 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 90

Exposure Pathway - Aquatic Bottom Sediment Location UHS 2014-29 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 05-NOV- 14 K-40 11,320.0 +/- 1,299.0 05-NOV-14 MN-54 < 63.8 05-NOV- 14 CO-58 < 79.8 05-NOV-14 FE-59 < 154.1 05-NOV-14 CO-60 < 46.4 05-NOV-14 ZN-65 < 123.6 05-NOV-14 CS-134 < 50.0 05-NOV-14 CS-137 < 43.0 05-NOV-14 FE-55 < 15,910.6 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 91

Exposure Pathway - Aquatic Bottom Sediment Location UHS 2014-30 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 05-NOV-14 K-40 11,568.0 +/- 1,360.0 05-NOV- 14 MN-54 < 52.4 05-NOV-14 CO-58 < 35.6 05-NOV-14 FE-59 < 115.6 05-NOV-14 CO-60 < 39.3 05-NOV-14 ZN-65 < 121.7 05-NOV-14 CS-134 < 46.5 05-NOV-14 CS-1 37 170.0 +/- 55.4 05-NOV-14 SR-89

• 126.0 05-NOV-14 SR-90 < 32.7 05-NOV- 14 NI-63 < 452.3 05-NOV-14 FE-55 < 15,561.6 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 92

Exposure Pathway - Aquatic Bottom Sediment Location UHS 2014-31 Collection Nuclide Concentration Duplicate Date (pCilKg Dry) Analysis 05-NOV-14 K-40 20,399.0 +/- 1,002.0 05-NOV-14 MN-54 < 29.7 05-NOV-14 CO-58 < 34.6 05-NOV-14 FE-59 < 88.9 05-NOV-14 CO-60 < 13.0 05-NOV- 14 ZN-65 < 86.4 05-NOV-14 CS-134 < 19.7 05-NOV- 14 CS-137 58.0 +/- 25.1 05-NOV-14 FE-55 < 15,769.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 93

Exposure Pathway - Aquatic Bottom Sediment Location UHS 2014-32 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 05-NOV-14 K-40 12,087.0 +/- 1,305.0 05-NOV-1 4 MN-54 < 66.4 05-NOV-1 4 CO-58 < 66.9 05-NOV-14 FE-59 < 186.0 05-NOV-14 CO-60 < 52.2 05-NOV-14 ZN-65 < 112.9 05-NOV-14 CS-134 < 53.4 05-NOV-14 CS-137 < 61.6 05-NOV-14 FE-55 < 15,619.2 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 94

Exposure Pathway - Aquatic Bottom Sediment Location UHS HS-7 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 24-JUN-14 K-40 13,462.0 +/- 757.3 24-JUN-14 MN-54 36.0 24-JUN-14 CO-58 25.4 24-JUN-14 FE-59 56.3 24-JUN-14 CO-60 20.3 24-JUN-14 ZN-65 50.8 24-JUN-14 CS-134 22.3 24-JUN-14 CS-137 92.4 - 32.1 24-JUN-14 CM-243/244 32.6 24-JUN-14 FE-55 15,545.1 24-JUN-14 PU-239/240 10.5 24-JUN-14 CM-242 65.2 24-JUN-14 AM-241 46.1 24-JUN-14 U-238 442.6+1 39.7 24-JUN-14 PU-238 14.9 24-JUN-14 U-235 11.5+- 6.9 24-JUN-14 U-233/234 489.5+1 41.7 24-JUN-14 SR-90 103.0 24-JUN-14 NI-63 445.2 24-JUN-14 SR-89 239.5 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 95

Exposure Pathway - Aquatic Bottom Sediment Location UHS HS-8 Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 05-NOV-1 4 K-40 11,857.0 +/- 1,394.0 05-NOV-1 4 MN-54 < 64.4 05-NOV-14 CO-58 < 62.3 05-NOV-14 FE-59 < 201.9 05-NOV-14 CO-60 < 43.0 05-NOV-1 4 ZN-65 < 99.9 05-NOV-14 CS-134 < 55.1 05-NOV-14 CS-137 < 63.4 05-NOV-14 FE-55 < 15,636.1 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 96

Exposure Pathway - Aquatic Vegetation Location DC-ALT Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Sample 23-JUN-14 AMERICAN PONDWEED BE-7 133.6 23-JUN-14 AMERICAN PONDWEED K-40 2,517.9 +/- 298.3 23-JUN-14 AMERICAN PONDWEED MN-54 5.5 23-JUN-14 AMERICAN PONDWEED CO-58 9.2 23-JUN-14 AMERICAN PONDWEED FE-59 22.8 23-JUN-14 AMERICAN PONDWEED CO-60 10.9 23-JUN-14 AMERICAN PONDWEED ZN-65 21.8 23-JUN-14 AMERICAN PONDWEED ZR-NB-95 9.5 23-JUN-14 AMERICAN PONDWEED 1-131 19.6 23-JUN-14 AMERICAN PONDWEED CS-134 10.2 23-JUN-14 AMERICAN PONDWEED CS-137 11.2 29-SEP-14 AMERICAN PONDWEED BE-7 311.2+1 105.2 29-SEP-14 AMERICAN PONDWEED K-40 2,369.7+1 252.0 29-SEP-14 AMERICAN PONDWEED MN-54 5.5 29-SEP-14 AMERICAN PONDWEED CO-58 6.1 29-SEP-14 AMERICAN PONDWEED FE-59 16.3 29-SEP-14 AMERICAN PONDWEED CO-60 10.2 29-SEP-14 AMERICAN PONDWEED ZN-65 8.3 29-SEP-14 AMERICAN PONDWEED ZR-NB-95 9.1 29-SEP-14 AMERICAN PONDWEED 1-131 19.4 29-SEP-14 AMERICAN PONDWEED CS-134 9.2 29-SEP-14 AMERICAN PONDWEED CS-137 10.6 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 97

Exposure Pathway - Aquatic Vegetation Location MUDS Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Sample 22-AUG-14 AM. PONDWEED & NAIAD BE-7 286.7 +1- 102.3 22-AUG-14 AM. PONDWEED & NAIAD BE-7 252.0 +1- 98.9 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD K-40 2,201.4 +1- 203.9 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD K-40 2,547.9 +1- 255.7 22-AUG-14 AM. PONDWEED & NAIAD MN-54 9.2 22-AUG-14 AM. PONDWEED & NAIAD MN-54 8.6 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD CO-58 7.9 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD CO-58 10.0 22-AUG-14 AM. PONDWEED & NAIAD FE-59 17.9 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD FE-59 11.5 22-AUG-14 AM. PONDWEED & NAIAD CO-60 7.9 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD CO-60 9.7 22-AUG-14 AM. PONDWEED & NAIAD ZN-65 18.2 22-AUG-14 AM. PONDWEED & NAIAD ZN-65 14.8 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD ZR-NB-95 12.1 22-AUG-14 AM. PONDWEED & NAIAD ZR-NB-95 9.2 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD 1-131 21.6 22-AUG-14 AM. PONDWEED & NAIAD 1-131 27.4 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD CS-134 8.8 Duplicate 22-AUG-14 AM. PONDWEED & NAIAD CS-134 9.1 22-AUG-14 AM. PONDWEED & NAIAD CS-1 37 10.7 22-AUG-14 AM. PONDWEED & NAIAD CS-1 37 10.4 Duplicate 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 98

Exposure Pathway - Terrestrial Vegetation Location EEA Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 03-JUN-14 PASTURAGE BE-7 1,022.1 +/- 140.8 03-JUN-14 PASTURAGE K-40 7,351.1 +/- 368.1 03-JUN-14 PASTURAGE MN-54 12.7 03-JUN-14 PASTURAGE CO-58 14.2 03-JUN-14 PASTURAGE FE-59 32.7 03-JUN-14 PASTURAGE CO-60 14.1 03-JUN-14 PASTURAGE ZN-65 27.3 03-JUN-14 PASTURAGE ZR-NB-95 17.2 03-JUN-14 PASTURAGE 1-131 19.0 03-JUN-14 PASTURAGE CS-1 34 12.6 03-JUN-14 PASTURAGE CS-1 37 12.5 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 99

Exposure Pathway - Terrestrial Vegetation Location MUDS Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 27-MAY-1 4 PASTURAGE BE-7 1,546.2 +/- 253.3 27-MAY-14 PASTURAGE K-40 4,423.9 +/- 653.5 27-MAY- 14 PASTURAGE MN-54 18.2 27-MAY-1 4 PASTURAGE CO-58 8.9 27-MAY- 14 PASTURAGE FE-59 36.3 27-MAY- 14 PASTURAGE CO-60 13.6 27-MAY- 14 PASTURAGE ZN-65 23.4 27-MAY- 14 PASTURAGE ZR-NB-95 12.2 27-MAY- 14 PASTURAGE 1-131 30.2 27-MAY-14 PASTURAGE CS-134 15.1 27-MAY-1 4 PASTURAGE CS-1 37 12.3 22-AUG-14 PASTURAGE BE-7 1,612.3 +/- 300.3 22-AUG-14 PASTURAGE K-40 4,016.0 +/- 497.4 22-AUG-14 PASTURAGE MN-54 17.9 22-AUG-14 PASTURAGE CO-58 18.9 22-AUG-14 PASTURAGE FE-59 46.2 22-AUG-14 PASTURAGE CO-60 21.6 22-AUG-14 PASTURAGE ZN-65 43.5 22-AUG-14 PASTURAGE ZR-NB-95 29.0 22-AUG-14 PASTURAGE 1-131 37.6 22-AUG-14 PASTURAGE CS-134 18.0 22-AUG-14 PASTURAGE CS-137 22.2 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 100

Exposure Pathway - Terrestrial Soil Location MUDS Collection Nuclide Concentration Duplicate Date (pCi/Kg Dry) Analysis 14-MAY- 14 K-40 10,533.0 +/- 702.0 14-MAY- 14 MN-54 < 27.6 14-MAY-14 CO-58 < 19.4 14-MAY- 14 FE-59 < 25.2 14-MAY- 14 CO-60 < 13.0 14-MAY- 14 ZN-65 < 52.8 14-MAY- 14 CS-134 < 21.2 14-MAY-14 CS-137 50.4 +/- 22.6 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 101

Exposure Pathway - Ingestion Meat Location A1.0 Collection Sample Nuclide Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 17-SEP-14 DEER K-40 2,553.8 +/- 393.4 17-SEP-14 DEER MN-54 10.8 17-SEP-14 DEER CO-58 9.5 17-SEP-14 DEER FE-59 27.9 17-SEP-14 DEER CO-60 15.1 17-SEP-14 DEER ZN-65 16.3 17-SEP-14 DEER CS-134 15.3 17-SEP-14 DEER CS-137 14.4 17-SEP-14 DEER H-3 1,251 .0 +/- 103.0 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 102

WOLF CREEK GENERATING STATION 2014 LAND USE CENSUS REPORT A

'F Prepared by:

JIU 4W li 09-24-14 Teresa L. Rice Date Peer Review:

09/24/14 Craig T. Adkinson Date Approved by:

09/24/14 James K. Rudeen Date 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 1

EXECUTIVE

SUMMARY

The annual Land Use Census of rural residents within five miles of the Wolf Creek Generating Station (WCGS) has been completed in 2014 in accordance with AP 07B-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 broadleaf vegetation locations with the highest calculated annual average D/Q rankings are A2.60-17TE1527 and Q2.35-MILA1619. AP 07B-004 specifies, "Alternate sampling locations may be used to provide continued monitoring". The third-ranked garden is N2.38-RODR9. Since these gardens are currently listed as sample locations for the Radiological Environmental Monitoring Program in procedure AP 07B-004 (locations A-3, Q-6 and N-i), no program changes are necessary regarding broadleaf vegetation locations.

BACKGROUND Section 5.2, Attachment A, of procedure AP 07B-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 071-004, 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.

A follow-up survey was sent to residents who did not respond. 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.

RESULTS No changes were identified for the nearest occupied residence in each sector. Seven 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.

2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 2

TABLE I 2014 Land Use Census Data Location of Nearest:

Sector Residence Milking Animals Broadleaf Garden A A2.47-17RD1474 None A2.60-17TE1 527 B B3.53-QURD1755 None None C C1.92-16RD1703 None C3.16-QURD1712 D D2.03-QULA1571 None D2.33-RERD1520 E El.77-QULA1485 None E4.92-15R2065 F Fl.84-QULA1419 None F2.28-14RD1785 G G3.03-13RD1820 None G3.66-12RD1814 H H3.09-12RD1711 None None J J3.70-1 1RD1540 None J3.70-1 1RD1540 K K2.70-12LA1439 None K4.10-NARD 1120 L L2.10-NARD 1339 None L2.39-NARD1 309 M M2.34-14RD1346 None M3.78-LYRD1390 N N2.08-15RD1350 None N2.38-RODR9 P P2.76-HW751534 None P3.52-16RD1 196 Q Q2.35-MILA1619 None Q2.35-MILA1619 R R2.08-NALN 1650 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 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 3

TABLE 2 SECTOR 2013 NEAREST 2014 NEAREST RESIDENCE RESIDENCE A A2.47-17RD1474 A2.47-17RD1474 B B3.53-QURD1755 B3.53-QURD1755 C C1.92-16RD1703 C1.92-16RD1703 D D2.03-QULA1571 D2.03-QULA1571 E E1.77-QULA1485 E1.77-QULA1485 F F1.84-QULA1419 F1.84-QULA1419 G G3.03-13RD1820 G3.03-13RD1820 H H3.09-12RD1711 H3.09-12RD1711 J J3.70-11RD1540 J3.70-11RD1540 K K2.70-12LA1439 K2.70-12LA1439 L L2.10-NARD 1339 L2.10-NARD 1339 M M2.34-14RD1346 M2.34-14RD1346 N N2.08-15RD1350 N2.08-15RD1350 P P2.76-HW751534 P2.76-HW751534 Q Q2.35-MILA1619 Q2.35-MILA1619 R R2.08-NALN1650 R2.08-NALN1650 NOTE: Entries underlined indicate changes from the 2013 Land Use Census.

2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 4

TABLE 3 2014 Land Use Census Milk and Garden Data SECTOR 2013 2014 2013 NEAREST 2014 NEAREST MILKING MILKING GARDEN GARDEN ANIMALS ANIMALS PRODUCING PRODUCING BROADLEAF BROADLEAF VEGETATION VEGETATION A None None A2.60-17TE1527 A2.60-17TE1527 B None None None None C None None C3.58-RERD1675 C3.16-QURD1712 D None None D3.00-16RD1829 D2.33-RERD1520 E None None None E4.92-15R2065 F None None F2.44-RERD1391 F2.28-14RD1785 G None None G3.77-12RD1831 G3.66-12RD1814 H None None H3.89-11RD1655 None J None None J3.70-11RD1540 J3.70-11RD1540 K None None K4.10-NARD1120 K4.1O-NARD 1120 L None None L2.39-NARD1309 L2.39-NARD1309 M None None M3.78-LYRD1390 M3.78-LYRD1390 N None None N2.38-RODR9 N2.38-RODR9 P None None P2.93-BRST250 P3.52-16RD1 196 Q None None Q2.35-MILA1619 Q2.35-MILA1619 R None None None None NOTE: Underlined entries indicate changes from the 2013 Land Use Census.

2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 5

TABLE 4 Information Used for D/Q Calculations on Gardens Producing Broadleaf Vegetation FROM LAND USE FROM SA-13-002 DIST CALC NEA NEAR FAR FAR SECTOR R

SECTOR (MI) (METERS) DIST D IQ DIST D 1Q CALC RANKING A 2.60 4184 4000 1.86E-09 5000 1.26E-09 1.75E-09 1 B

C 3.16 5086 5000 2.51E-10 6000 1.85E-10 2.45E-10 12 D 2.33 3750 3000 4.88E-10 4000 2.93E-10 3.42E-10 10 E 4.92 7918 7000 1.23E-10 8000 9.93E-11 1.01E-10 13 F 2.28 3669 3000 6.15E-10 4000 3.69E-10 4.50E-10 6 G 3.66 5890 5000 4.85E-10 6000 3.57E-10 3.71E-10 9 H

J 3.70 5955 5000 6.06E-10 6000 4.46E-10 4.53E-10 5 K 4.10 6598 6000 4.46E-10 7000 3.31E-10 3.77E-10 8 L 2.39 3846 3000 1.10E-09 4000 6.62E-10 7.29E-10 4 M 3.78 6083 6000 2.67E-10 7000 1.99E-10 2.61E-10 11 N 2.38 3830 3000 1.17E-09 4000 7.OOE-10 7.80E-10 3 P 3.52 5665 5000 5.19E-10 6000 3.82E-10 4.28E-10 7 Q 2.35 3782 3000 1.46E-09 4000 8.79E-10 1.01E-09 2 R

Originated by: Date: 09-24-14 Verified by:

67?77, Date:

09/24/14 2014 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 6