ML11123A193

Submittal of 2010 Annual Radiological Environmental Operating Report

ML11123A193
Person / Time
Site:	Wolf Creek
Issue date:	04/27/2011
From:	Sen G Wolf Creek
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RA 11-0129
Download: ML11123A193 (156)

Text

W LF CREEK rNUCLEAR OPERATING CORPORATION Gautam Sen Manager Regulatory Affairs April 27, 2011 RA 11-0129 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Docket No. 50-482: 2010 Annual Radiological Environmental Operating Report Gentlemen:

Enclosed is the 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, 2010, through December 31, 2010.This letter contains no commitments.

If you have any questions concerning this matter, please contact me at (620) 364-4175, or Ms. Diane Hooper at (620) 364-4041.Sincerely, Gautam Sen GS/rlt

Enclosure:

2010 Annual Radiological Environmental Operating Report cc: E. E. Collins (NRC), w/e J. R. Hall (NRC), w/e G. B. Miller (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 WOLF CREEK NUCLEAR OPERATING CORPORATION WOLF CREEK GENERATING STATION 2010 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT Ad F April 15, 2011 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 Ill. Program Revisions/Changes 10 IV. Program Deviations 10 V. Interlaboratory Comparison Program Results 11 VI. Comparison to the Radioactive Effluents Release Program 11 Tables 12 Figures 20 Charts 25 Appendix A -Interlaboratory Comparison Program Results A-1 Appendix B -Summary Tables B-1 Appendix C -Individual Sample Results C-1 Air Particulate and Charcoal Filters C-1 Quarterly Air Particulate

-Gamma C-13 Surface Water C-21 Ground Water C-29 Drinking Water C-45 Quarterly Drinking Water -Tritium C-53 Shoreline Sediment C-55 Fish C-58 Food/Garden C-65 Feed and Forage C-71 Bottom Sediment C-74 Aquatic Vegetation C-83 Soil C-85 Alligator C-87 Deer C-88 Appendix D -Land Use Census Report D-1 LIST OF TABLES 1 Radiological Environmental Monitoring Program Description 12 2 Sample Location Identifiers, Distances (Miles) and Directions (Sectors) 17 3 OSL Dosimeter Results 19 LIST OF FIGURES 1 Airborne Pathway Sampling Locations 20 2 Direct Radiation Pathway Sampling Locations 21 3 Waterborne Pathway Sampling Locations 22 4 Ingestion Pathway Sampling Locations 23 5 Distant Sampling Locations 24 LIST OF CHARTS 1 Airborne Gross Beta Weekly Results 25 2 Historical Airborne Smoothed Indicator and Control Gross Beta 26 3 OSL Dosimeters

-Indicator and Control Locations mR per Standardized 90-day 27 Quarter 4 Historical TLD Nearsite Locations and Control Locations 28 5 Coffey County Lake Surface Water Tritium Data 29 6 Drinking Water Gross Beta (5 years) 30 7 Detected Co-60 Activity in Coffey County Lake Discharge Cove Bottom Sediment 31 8 Detected Cs-137 Activity in Bottom Sediment 32 ii EXECUTIVE

SUMMARY

Plant-related activation, corrosion, or fission products were not detected during 2010 in airborne particulate and radioiodine filters, ground water, drinking water, broadleaf vegetation, shoreline sediment, crops, aquatic vegetation, bottom sediment, or soil samples. Activation, corrosion or fission products attributable to plant operation were detected during 2010 in surface water, fish, deer, and alligator samples.Nuclides detected in Radiological Environmental Monitoring Program (REMP) samples were below applicable NRC reporting levels.Based upon the radiological environmental monitoring program results, it was concluded that station operations had no significant radiological impact on the health and safety of the public or the environment.

INTRODUCTION The 2010 Annual Radiological Environmental Operating Report for Wolf Creek Generating Station (WCGS) covers the period from January 1 through December 31, 2010. 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 Effluents Release Program. The Interlaboratory Comparison Program results, a summary of results in the Nuclear Regulatory Commission (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/sample locations, sample collection frequency and type/frequency of analysis.

Table 2 lists each sample location's distance and direction from the plant. Samples in addition to those required by the WCGS Offsite Dose Calculation Manual (ODCM) were also obtained and analyzed.The following is a description of the sampling and analysis program by individual pathways.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 1 of 32 A. Airborne Pathway Low volume air sampling pumps with digital flow meters continuously collected particulate and radioiodine samples on 47 mm glass fiber filters and charcoal canisters, respectively.

The filters and charcoal canisters were changed out weekly, labeled, and shipped to Environmental, Inc. for analyses.Gross beta analyses of the air particulate filters were performed after a nominal 72-hour period to allow the radon and thoron daughter products to decay.Weekly air particulate filters were combined into quarterly composites for each location and analyzed for gamma emitting isotopes.Charcoal canisters were routinely counted to determine the presence or absence of 1-131.Positive indication of 1-131 would have resulted in analysis of each individual charcoal canister.Air samples were collected from six locations.

Indicator locations 2, 37, and 49 are located in the three sectors with the highest ground level deposition constants (D/Q). Air sampling stations are also located in the community of New Strawn (indicator location 32) and a control location near the intersection of 2 0 th Road and Yearling Road (location 53). Supplemental indicator location (location

18) was also sampled during the year. Indicator locations are shown in Figure 1 and the control location is shown in Figure 5.B. Direct Radiation Pathway Optically stimulated luminescence (OSL) dosimeters were used at 44 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. Two OSLs were placed at each designated location.

The OSLs were changed out quarterly.

Transit dose was measured and subtracted from the ambient dose. Indicator OSL sample locations are illustrated in Figure 2 and control locations are shown in Figure 5. Control locations were 39 (Beto Junction), 48 (Harris) and 53 (near the intersection of 2 0 th Road and Yearling Road).C. Waterborne Pathway All water samples were analyzed to determine whether gamma emitters were present. In addition to gamma isotopic analysis, radiochemical analysis for 1-131 was performed on drinking water and ground water samples. Gross beta analysis was also performed on drinking water samples. Tritium analysis was performed monthly by liquid scintillation for surface water and quarterly for drinking water. Tritium analysis was also performed on ground water samples. One surface water sample from the SP location was also analyzed for Fe-55. Water sampling locations are shown in Figures 3 and 5.Monthly grab samples of surface water were collected from John Redmond Reservoir (JRR) as a control location and from the "SP" location, which is located near the spillway of Coffey County Lake, formerly known as Wolf Creek Lake, as an indicator location.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 2 of 32 Quarterly grab samples of ground water were collected from seven wells. Location B-12 is hydrologically up gradient from the site and was used as a control location.

Six locations (C-10, C-49, F-i, G-2, J-1 and J-2) are hydrologically down gradient from the site and were used as indicator sample locations.

Drinking water was sampled at the water treatment facilities for the towns of Burlington (control location BW-15) and Iola (indicator location IO-DW). The Burlington facility is located upstream and the Iola facility is located downstream of the confluence of the discharge from Coffey County Lake and the Neosho River. Composite samples were obtained monthly from automatic samplers at each location that collected approximately 27 ml. of drinking water every two hours.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 Because no sampling locations that produce milk for human consumption were identified within five miles of the plant, milk was not collected during the sample year.Fish were sampled semiannually from the tail waters of JRR (control, Figure 4) and from Coffey County Lake (indicator, 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 from four gardens. Three indicator (H-2, N-1 and Q-6) gardens (Figure 4) and one control (D-2) garden (Figure 5) were sampled. Gamma isotopic analyses were performed on all samples.Crop samples were obtained from two indicator locations (NR-D1 and NR-D2) downstream of the confluence of Wolf Creek and the Neosho River. Two crop samples were obtained from control location NR-UI. Gamma isotopic analysis was performed on each sample. Crop sample locations are identified on Figure 5.E. Additional Samples Collected (not required by ODCM)Quarterly, duplicate ground water grab samples were obtained from indicator location C-49 and were labeled L-49. These duplicate samples served as laboratory quality checks. The ground water samples were analyzed for gamma emitters, 1-131, and tritium.Bottom sediment samples were collected from indicator locations at the Coffey County Lake discharge cove (DC), Environmental Education Area (EEA), Make-Up Discharge Structure (MUDS), Ultimate Heat Sink (UHS), and the control location (JRR). Gamma isotopic analyses were performed on the bottom sediment samples. One sample from the DC and a sample from JRR were also analyzed for Fe-55. Some of these indicator samples were collected as part of a cooperative sampling effort with the Kansas Department of Health and Environment (KDHE).The sample locations are identified on Figure 3.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 3 of 32 A shoreline sediment sample was collected from indicator location EEA. Gamma isotopic analysis was performed on the sample. This sample was collected as part of a cooperative sampling effort with the KDHE. The sample location is identified on Figure 3.Aquatic vegetation was collected from indicator locations DC ALT and EEA. 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.Soil was sampled from indicator locations MUDS and EEA. Gamma isotopic analyses were performed on the soil samples. These samples were collected as part of a cooperative sampling effort with the KDHE. The sample locations are identified on Figure 4.One road-killed deer was sampled from indicator location R2.5. Gamma isotopic analysis and tritium analysis were performed.

This sample was collected as part of a cooperative sampling effort with the KDHE. The sample location is identified on Figure 4.An alligator was sampled from indicator location CCL. Gamma isotopic analysis and tritium analysis were performed.

The sample location is identified on Figure 4.II. DISCUSSION OF RESULTS Analysis results for all 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.In this section, results are discussed by pathway and analysis type. Monitoring results are compared with control data, preoperational values, sources of radioactivity, and effluent releases when applicable.

Trends or seasonal effects are discussed.

A. Airborne Pathway Chart 1 graphically illustrates weekly gross beta results for the sample year. Chart 2 represents the historical smoothed averages of indicator locations and the control locations gross beta data.Charts 1 and 2 demonstrate how closely the indicator and control locations tracked together.Chart 2 reveals a seasonal cyclic trend in which 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 2010 were compared to pre-operational monitoring results of 1983 and 1984. The weekly gross beta analyses range for 1983 and 1984 was 0.0064 to 0.084 pCi/m 3.The 2010 weekly gross beta analyses range for all indicator locations was 0.007 to 0.050 pCi/m 3 , which was within the 1983 and 1984 pre-operational range. Additionally, the annual mean for indicator locations for 2010 (0.026 pCi/i 3) was lower than the annual mean for 1983 (0.032 pCi/m 3).2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 4 of 32 The gross beta results for the indicator locations were also compared to the control location.The annual mean for indicator locations for 2010 (0.026 pCi/m 3) was the same as the annual mean of the control location (0.026 pCi/m 3). The indicator location with the highest gross beta annual mean was location 49 (0.026 pCi/m 3), which was the same as the annual mean of the control location (0.026 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 2010, the range for Be-7 detected activity was 0.058 to 0.105 pCi/m 3 for indicator locations and the annual mean for indicator locations was 0.082 pCi/m 3.The control location annual mean for Be-7 detected activity (0.082 pCi/m 3) was the same as the indicator locations annual mean (0.082 pCi/m 3).1-131 activity was not detected in the weekly analysis of charcoal filters at any location.Plant-related activation, corrosion, or fission products were not detected during 2010 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 all indicator locations in 2010 was 18.9 mR per standardized 90-day quarter. The annual mean of the control locations in 2010 was 19.7 mR per standardized 90-day quarter.For pre-operational comparison, in 1981, the annual mean of all indicator locations was 18.9 mR per standardized 90-day quarter and the annual mean for the control locations was 17.1 mR per standardized 90-day quarter. It should be noted that WCGS changed from thermoluminescence dosimeters to optically stimulated luminescence dosimeters in 2008.The indicator location with the highest annual mean was 47 (25.2 mR per standardized 90-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. As expected, the OSL results have increased for all locations.

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 2010.Chart 4 displays the TLD nearsite locations (1, 2, 7-9, 11-14, 18, 26, 27, 29, 30, 37 and 38) and the control locations (locations 39 and 48) for the preoperational years through 2007.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 5 of 32 C. Waterborne Pathway (1) Surface Water Tritium, attributable to WCGS operation, was detected in all surface water samples collected from Coffey County Lake during 2010. Chart 5 illustrates the yearly averages of surface water tritium data for the spillway location.

Chart 5 indicates that the average tritium concentration of the Coffey County Lake may have reached equilibrium.

ODCM required lower limits of detection were met and tritium activity was not detected in samples obtained from the control location (JRR).During pre-operational radiological environmental monitoring, measured radiological activity was not detected in surface water samples.Tritium was the only activity detected in surface water samples and no unusual trends were noted.(2) Ground Water ODCM 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 2010 in ground water samples.(3) Drinking Water Gross beta activity was detected in all drinking water samples collected from the indicator location and the control location.

The annual mean of the indicator location gross beta activity (2.8 pCi/L) was similar when compared to the annual mean of the control location gross beta activity (2.9 pCi/L). The 2010 annual means of gross beta activity for both the indicator and control locations were lower than those of the pre-operational monitoring year of 1984. In 1984, the annual mean of the indicator location gross beta activity was 7.5 pCi/L and the annual mean of the control 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 locations.

ODCM required lower limits of detection were met. Additionally, radionuclides were not detected by the 1-131, Tritium, or gamma isotopic analyses.Plant-related activation, corrosion, or fission products were not detected during 2010 in drinking water samples and no unusual trends were noted.(4) Shoreline Sediment Naturally occurring K-40 was detected in all shoreline sediment samples collected from the DC (indicator) and JRR (control) locations.

K-40 was also detected during pre-operational shoreline sediment monitoring.

2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 6 of 32 Cs-137 activity (184.2 +/- 98.8 pCi/kg, dry) was detected in one shoreline sediment sample obtained from the DC indicator location.

Cs-1 37 activity (116.8 +/- 31.3 pCi/kg, dry) was also detected in one shoreline sediment sample obtained from the JRR control location.Cs-137 activity was detected in pre-operational shoreline sediment samples. Cs-137 activity detected in shoreline sediment samples collected from the DC location from 1982 to 1984 was in the range of 224 to 437 pCi/kg, dry. The decay corrected range of pre-operational Cs-137 activity detected is approximately 124 to 235 pCi/kg, dry. The detected Cs-137 activity in the shoreline sediment sample collected at the DC indicator location in 2010 was likely due to fallout since the measured activity is within the decay corrected range of pre-operational Cs-137 detected activity.ODCM required lower limits of detection were met. Plant-related activation, corrosion, or fission products were not detected during 2010 in shoreline sediment samples and no unusual trends were noted.D. Ingestion Pathway (1) Milk Milk was not collected during the sample year since no indicator locations within five miles of the plant were identified during the Land Use Census.(2) Fish Naturally occurring K-40 activity was detected in all fish samples obtained from the CCL indicator location and the JRR control location.

K-40 activity was also detected during pre-operational fish monitoring.

Fish samples were also analyzed for tritium. All fish samples taken from Coffey County Lake had tritium activity detected (7,481 pCi/kg annual mean). The detected tritium activity was attributable to plant operation.

An adult consuming 21 kilograms of fish, at the maximum measured tritium concentration (8,358 pCi/kg), would receive a committed effective dose equivalent of 0.011 mRem.Tritium activity was not detected in the control samples collected from JRR.No other radionuclides were detected in fish during the year. The ODCM 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 locations detected naturally occurring gamma emitters Be-7 and K-40. Be-7 and K-40 activity were also detected pre-operationally.

No other radionuclides were detected in broadleaf vegetation during the year. The ODCM required lower limits of detection were met and no unusual trends were noted. Plant-related activation, corrosion, or fission products were not detected during 2010 in broadleaf vegetation samples.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 7 of 32 (4) Crop Samples Gamma analysis detected naturally occurring K-40 activity to be present in all of the samples.K-40 activity was also detected during pre-operational crop monitoring.

K-40 was the only activity detected in crop samples. Plant-related activation, corrosion, or fission products were not detected during 2010 in crop samples and no unusual trends were noted.E. Additional Samples Collected (not required by ODCM)(1) Bottom Sediment Naturally occurring K-40 was detected in all of the bottom sediment samples obtained from the indicator locations and the control locations.

K-40 activity was also detected during pre-operational bottom sediment monitoring.

Cs-137 activity was detected in seven out of the nine samples obtained from indicator locations (range 40 to 111 pCi/kg, dry). Cs-137 activity was also detected in one sample obtained from the control location (112 pCi/kg, dry). Since the measured Cs-137 concentrations of the indicator location samples were lower than the Cs-137 concentration of the control location, this activity was likely due to fallout and not attributed to plant operation.

Cs-137 activity was detected in pre-operational samples, and the results for 2010 indicator bottom sediment samples were within the pre-operational range. (Cs-137 activity detected in 1981 and 1982 was in the range of 79 to 953 pCi/kg. The decay corrected range of pre-operational Cs-137 activity detected is approximately 40 to 484 pCi/kg.)Chart 8 plots the Cs-137 detected activity from the discharge cove indicator location and JRR control location bottom sediment samples. The detected Cs-137 activity measured from the discharge cove location reflects a decreasing trend. The Chart 8 trend line indicates that as expected, Cs-137 activity detected at the JRR control location has also been decreasing.

No other radionuclides were detected in bottom sediment samples and no unusual trends were noted.(3) Aquatic Vegetation Naturally occurring Be-7 and K-40 activity were detected in all aquatic vegetation samples.Be-7 and K-40 activity were also detected during pre-operational monitoring.

No other radionuclides were detected.

Plant-related activation, corrosion, or fission products were not detected during 2010 in aquatic vegetation samples and no unusual trends were noted.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 8 of 32 (4) Shoreline Sediment Naturally occurring K-40 activity was detected in the shoreline sediment sample obtained from the EEA indicator location.

K-40 activity was also detected during pre-operational monitoring.

Cs-137 activity (101.9 pCi/kg, dry) was detected in the shoreline sediment sample obtained from the EEA indicator location.

Cs-137 activity (116.8 pCi/kg, dry) was also detected in one shoreline sediment sample obtained from the JRR control location.

The detected Cs-137 activity at the EEA indicator location was likely due to fallout and is not attributed to plant operation since the measured activity at the control location was slightly higher than the measured activity at the indicator location.No other radionuclides were detected.

Plant-related activation, corrosion, or fission products were not detected and no unusual trends were noted.(5) Soil Naturally occurring K-40 activity was detected in both of the indicator location soil samples.K-40 activity was also detected during pre-operational soil monitoring.

Cs-137 activity (336 pCi/kg) was also detected in the EEA indicator location soil sample. This activity is likely due to fallout. Data was reviewed for soil samples collected pre-operationally.

The detected Cs-1 37 activity range from February of 1985 was 255 to 2,160 pCi/kg, dry. The decay corrected range of pre-operational Cs-137 activity detected in soil is approximately 142 to 1,203 pCi/kg. The range of the 2010 detected Cs-137 activity in soil is within the decay corrected pre-operational range.Plant-related activation, corrosion, or fission products were not detected during 2010 in soil samples and no unusual trends were noted.(6) Deer Naturally occurring K-40 activity was detected in the deer sample obtained from the indicator location.The deer sample was also analyzed for tritium. The detected tritium activity (626 pCi/kg, wet)was attributable to plant operation.

No other radionuclides were detected.

No unusual trends were identified.

(7) Alligator Naturally occurring K-40 activity was detected in the alligator sample obtained from the indicator location.The alligator sample was also analyzed for tritium. The detected tritium activity (7,737 pCi/kg, wet) was attributable to plant operation.

No other radionuclides were detected.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 9 of 32 III. PROGRAM REVISIONS/CHANGES Control dosimeter location #48 (Harris) was removed from the REMP and control dosimeter location #53 was added to the REMP. This change was made based upon a comparison that was performed which reflected that there was no significant difference between the two locations.

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/

Discrepancy/

Condition Report Number/Hours Comments Unavailable 18 04/26/10 -05/03/10 50%/81 Equipment Malfunction Condition Report 00025260 (LLDs were attained.)

53 05/11/10 -05/17/10 79/6/114 Equipment Malfunction Condition Report 00025608 Due to low sample volume, the LLDs for Gross Beta and 1-131 were unattainable.

37 05/17/10 -05/24/10 12%/21 Power Outage Condition Report 00025712 (LLDs were attained.)

37 06/08/10 -06/14/10 15%/21 Power Outage Condition Report 00026100 (LLDs were attained.)

32 07/19/10 -07/26/10 8.9%/14 Voltage Outside of Acceptable Range Condition Report 00026950 (LLDs were attained.)

Drinking Water Samples Drinking water was not continuously collected at the Burlington control sample location during the 09-07-2010 to 10-06-2010 sample period due to an equipment malfunction (faulty float assembly).

Approximately 3/4 of a gallon of water was collected before the sampler stopped operating.

This sample and a grab sample were submitted to the vendor lab for analysis.

The drinking water sampler was replaced with a spare drinking water sampler on the same day of discovery.

Condition Report 00028670 was generated to document the condition.

2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 10 of 32 Ground Water Protection The following information is being provided in association with the Nuclear Energy Institute (NEI) Groundwater Protection Industry Initiative:

Describe offsite ground water or surface water sample results that exceeded the REMP reporting criteria that were voluntarily communicated to State/Local officials during the calendar year- None.V. INTERLABORATORY COMPARISON PROGRAM RESULTS During 2010, 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 EFFLUENTS 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 that 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 0.111 mRem for 2010.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 (11,428 pCi/L), would receive a committed effective dose equivalent of 0.522 mRem per year. For an adult eating 21 kg of fish per year from Coffey County Lake, using the average tritium activity (7,481 pCi/kg), would receive a committed effective dose equivalent of 0.010 mRem per year. Based upon the REMP results, the dose from both pathways was calculated to be 0.532 mRem per year.It should be noted that the Coffey County Lake is not 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.

2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 11 of 32 TABLE 1 2010 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DESCRIPTION (SAMPLE COLLECTION SPECIFIED BY ODCM)EXPOSURE PATHWAY/SAMPLE TYPE NUMBER OF SAMPLES AND SAMPLE LOCATIONS (See Figures 1 & 5)SAMPLE COLLECTION FREQUENCY TYPE AND FREQUENCY OF ANALYSIS AIRBORNE Radioiodine and Particulates Samples from six locations Continuous sampler operation with sample collection weekly, or more frequently if required, by dust loading.Samples from locations near the site boundary in three sectors having the highest calculated annual average D/Q (Locations 2, 37, 49 and supplemental location 18 on Figure 1)Analyze radioiodine canister weekly for 1-131 Analyze particulate filter weekly for gross beta activity;perform quarterly gamma isotopic analysis composite (by location)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)2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 12 of 32 TABLE 1 (Cont.)EXPOSURE PATHWAY/SAMPLE TYPE DIRECT RADIATION NUMBER OF SAMPLES AND SAMPLE LOCATIONS (See Figures 2 & 5)40 routine monitoring stations with two or more dosimeters measuring dose continuously, placed as follows: SAMPLE COLLECTION FREQUENCY TYPE AND FREQUENCY OF ANALYSIS Quarterly Gamma dose quarterly 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, 47, & 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 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 13 of 32 TABLE 1 (Cont.)EXPOSURE PATHWAY/SAMPLE TYPE NUMBER OF SAMPLES AND SAMPLE LOCATIONS SAMPLE COLLECTION FREQUENCY TYPE AND FREQUENCY OF ANALYSIS DIRECT RADIATION (cont.)(r s E C C r WATERBORNE(many locations are iear a residence), schools (Locations 23 k 52), Environmental Education Area (44),ýCL Public Fishing ,rea (46) and in two ireas to serve as;ontrol stations 10-20 niles distant from the;ite (Locations 39 and i3 on Figure 5).See Figure 3)Surface One sample upstream (Location JRR on Figure 3) and one sample downstream (Location SP on Figure 3).Samples from one or two sources only if likely to be affected.Monthly grab sample Quarterly grab sample Monthly gamma isotopic analysis and composite for tritium analysis quarterly Quarterly gamma isotopic and tritium analysis Ground Indicator samples at locations hydrologically down gradient of the site (Locations C-10, C-49, F-1, G-2, J-1 and J-2 on Figure 3);control sample at a location hydrologically up gradient of the site (Location B-12 on Figure 3).2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 14 of 32 TABLE 1 (Cont.)EXPOSURE PATHWAY/SAMPLE TYPE NUMBER OF SAMPLES AND SAMPLE LOCATIONS SAMPLE COLLECTION FREQUENCY TYPE AND FREQUENCY OF ANALYSIS WATERBORNE (cont.)Drinking Shoreline Sediment Sample of municipal water supply at an indicator location downstream of the site (Location IO-DW on Figure 5); control sample from location upstream of the site (Location BW-15 on Figure 3).One sample from the vicinity of Coffey County Lake discharge cove (Location DC on Figure 3); control sample from John Redmond Reservoir (Location JRR on Figure 3).(See Figures 4 & 5)Samples from milking animals at three indicator locations within 5 miles of the 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.Monthly Composite Semiannually Monthly gamma isotopic analysis and gross beta analysis of composite sample. Quarterly tritium analysis of composites.

Semiannual gamma isotopic analysis INGESTION Milk Semimonthly April to November; monthly December-March Gamma isotopic analysis and 1-131 analysis of each sample 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 15 of 32 TABLE 1 (Cont.)EXPOSURE PATHWAY/SAMPLE TYPE NUMBER OF SAMPLES AND SAMPLE LOCATIONS SAMPLE COLLECTION FREQUENCY TYPE AND FREQUENCY OF ANALYSIS INGESTION (cont.)Fish Broadleaf Vegetation Irrigated Crops Indicator samples of 1 to 3 recreationally important species from Coffey County Lake;control samples of similar species from John Redmond Reservoir spillway (Figure 4).Samples of available broadleaf vegetation from two indicator locations (using the criteria from the "Land Use Census" section)with highest calculated annual average D/Q (Locations Q-6 and N-1 and alternate locations B-i, H-2 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).Sample of crops irrigated with water from the Neosho River downstream of the Neosho River -Wolf Creek confluence (Location NR-D1 and NR-D2 on Figure 5).Semiannually Gamma isotopic analysis on edible portions Monthly when available At time of harvest Gamma isotopic analysis on edible portions Gamma isotopic analysis on edible portions 2010 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 4.1 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 2010 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 48 14.7 ENE D 49 0.8 NNE B 50 3.6 ENE D 51 4.0 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 1O-DW 26.1 SSE H Shoreline Sediment DC 0.8 WNW P EEA 3.0 NNW R JRR 3.6 W N Fish CCL 0.6 E to NNW E to R JRR 3.7 W N Food/Garden D-2 14.8 ENE D H-2 3.0 SSE H N-1 2.4 W N Q-6 2.4 NW Q 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 JRR 3.7 W N MUDS 1.5 WNW P UHS 0.6 E E Aquatic Vegetation DC ALT 1.5 NW Q EEA 3.0 NNW R Soil EEA 3.0 NNW R MUDS 1.5 WNW P Meet (Alligator)

CCL 1.5 WNW P Meet (Deer) R2.5 2.5 NNW R 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 18 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 19.1 20.1 20.8 21.0 81.0 2 18.2 15.5 17.8 16.2 67.7 4 18.8 18.2 20.0 21.6 78.6 5 16.1 18.2 19.8 17.7 71.8 7 15.2 16.6 19.1 21.5 72.4 8 18.0 21.4 21.8 22.4 83.6 9 17.4 16.6 16.4 17.4 67.8 11 19.1 20.5 22.4 22.9 84.9 12 19.7 18.8 17.6 19.6 75.7 13 19.7 17.5 18.2 22.7 78.1 14 20.3 18.4 22.5 20.5 81.7 15 20.9 20.9 19.0 19.3 80.1 16 18.2 15.9 19.0 18.0 71.1 17 16.1 20.0 22.3 18.5 76.9 18 19.9 17.3 16.8 18.4 72.4 19 18.7 19.1 20.1 19.8 77.7 20 19.2 16.8 20.0 20.7 76.7 22 19.2 21.8 21.7 23.3 86.0 23 18.3 20.0 21.4 22.2 81.9 24 15.6 20.0 19.2 19.5 74.3 25 15.6 15.5 15.5 17.7 64.3 26 17.6 17.3 18.2 18.6 71.7 27 17.0 20.4 17.1 20.4 74.9 29 15.4 16.4 13.8 14.6 60.2 30 19.8 18.2 21.4 18.6 78.0 32 17.2 17.3 17.8 17.5 69.8 34 18.1 20.4 21.5 22.2 82.2 35 18.8 17.3 17.6 20.9 74.6 36 18.2 20.0 19.2 20.9 78.3 37 17.2 20.4 20.1 18.9 76.6 38 21.9 21.4 20.1 20.7 84.1 39 18.6 19.1 17.9 19.8 75.4 41 18.0 18.4 19.1 18.3 73.8 42 13.2 11.0 11.0 12.4 47.6 43 11.5 11.9 11.6 12.4 47.4 44 17.7 21.8 20.4 20.4 80.3 46 19.2 19.5 21.4 20.9 81.0 47 27.4 22.3 21.8 29.2 100.7 48 18.2 19.6 18.4 21.6 77.8 49 18.8 18.2 17.3 18.0 72.3 50 19.8 22.2 22.0 23.2 87.2 51 15.9 19.5 16.2 16.6 68.2 52 17.7 19.1 21.4 24.9 83.1 53 18.8 20.5 22.7 21.1 83.1 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 19 of 32 FIGURE 1 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 20 of 32 FIGURE 2 DIRECT RADIATION PATHWAY SAMPLING LOCATIONS 9 = DOSIMETER LOCATIONS 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 21 of 32 FIGURE 3 WATERBORNE PATHWAY SAMPLING LOCATIONS* = DRINKING WATER* = GROUND WATER ,= BOTTOM SEDIMENT A = SURFACE WATER* = SHORELINE SEDIMENT S= AQUATIC VEGETATION 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 22 of 32 FIGURE 4 INGESTION PATHWAY SAMPLING LOCATIONS A = FISH (JRR) l: BROADLEAF VEGETATION

• = SOIL % = ALLIGATOR FISH (CCL) TERRESTRIAL VEGETATION -DEER 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 23 of 32 FIGURE 5 A D DISTANT SAWPLNG LOCON* : Dosimeter w=D* = AIRBORNE PARTICULATE

& RADIOIODINE

= A GETATION/2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 24 of 32 CHART 1 2010 Airborne Gross Beta Weekly Results a)ci)U)CA U)(D 0.060 0.050 0.040 0.030 0.020 0.010 0.000 z M 0+0 A 0 I a 1 1. 1 1 1 1 ..0 4 8 12 16 20 24 28 32 36 40 44 48 52 m Location 2

• Location 18 + Location 32 A Location 37 , Location 49 --- Location 53 (Control)2010 Annual Radiological Environmental Operating Report -Wolf Creek Generating Station Page 25 of 32 CHART 2 0.060 E 0 Z CU CD\1.0 CD 0 E C/)0.050 0.040 0.030 0.020 0.010 N Z~0 0ý40 40---Smoothed Avg. Indicator Locations -Smoothed Avg. Control Location (40)Smoothed Avg. Control Location (48) -Smoothed Avg. Control Location (53)2010 Annual Radiological Environmental Operating Report -Wolf Creek Generating Station Page 26 of 32 CHART 3 OSL Dosimeters

-Indicator and Control Locations mR per Standardized 90-Day Quarter 22.0 20.0-18.0-OSL Transit Dose methodology was changed in 2010 based upon Condition Report 00027489.cr E 16.0 14.0 12.0 10.0-8.0-6.0-4.0 2008/1 2008/2 2008/3 2008/4 2009/1 2009/2 2009/3 2009/4 2010/1 2010/2 2010/3 2010/4 Year/Quarter

-*-Indicator Locations Standardized 90-Day Quarter (mR)--Control Locations Standardized 90-Day Quarter (mR)2010 Annual Radiological Environmental Operating Report -Wolf Creek Generating Station Page 27 of 32 CHART 4 Historical TLD Nearsite Locations and Control Locations 32.0 30.0 Elevated resul 28.0 longer exp 26.0 24.0 E 22.0 0 20.0 " 18.0 *16.0-14.0 11 12.0 1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006* Avg. of Nearsite Locations

& Avg. of Control Locations-Moving Avg. of Nearsite Locations (2 period) ---Moving Avg. of Control Locations (2 period)2010 Annual Radiological Environmental Operating Report -Wolf Creek Generating Station Page 28 of 32 CHART 5 Coffey County Lake Surface Water Tritium Data 16,000 14,000 12,000 10,000 8,000 6,000 4,000 2,000 CL 0.0.04-1987 1992 1997 2002 2007 I--s- Yearly Average of Spillway Location -Polynomial Tre~ndline 2010 Annual Radiological Environmental Operating Report -Wolf Creek Generating Station Page 29 of.32 CHART 6 Drinking Water Gross Beta (5 years)C).S a)Ua U)0 9 8 7 6 5 4 3 2 1 00 0 0z 0z .0 Q, z0000 0ý 0 0 BW15 (Control)

--IODW (Indicator) 2010 Annual Radiological Environmental Operating Report -Wolf Creek Generating Station Page 30 of 32 CHART 7 Detected Co-60 Activity in Coffey County Lake Discharge Cove Bottom Sediment 2,500 2,000 CL 1,500 1,000 500 0 r- 1o 0) 0 -CM co It 10 co f". 1o 0) 0 -CM co It O (0 r- 00 M)1O co Go 0) C) ) MCM 0) M ) C) C) M) 0 0 0 0 0 0 0 0 0 0 ,) 0) M) C) C) 0) 0) C) M) C) 0) C) C) 0 0 0 0 0 0 0 0 0 0 w 0 (0 10 o 1O0 (0 D (0 0 1 0 (0 1o (D 1o w 0 10 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0--Co-60 -Polynomial Trendlinej 2010 Annual Radiological Environmental Operating Report -Wolf Creek Generating Station Page 31 of 32 CHART8 Detected Cs-1 37 Activity in Bottom Sediment 1,000 900 800 700 CL 600 500 400 300 200 100 0 N- N~ ~ LO r- M 0- M~ COt 0 L1- MO 0)0 N' N CM It M (0 N- N,- MO MO)00 00 0 0000 00 0 0 LA N- C C 0(0(0(0 0 -C 0 0N N-N-' LAO 0) 0 (o00 0C LA LDO lA Tr0ndlA (DC) ..... La Tred (JRR)*DC Cs-i 137

• JRR Cs-137 -Polynomial Trendline (DC) ------ Polynomial Trendline (JRR)~2010 Annual Radiological Environmental Operating Report -Wolf Creek Generating Station Page 32 of 32 Environmental, Inc.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, 2010 through December, 2010 Appendix A Interlaboratory Comparison Proqram 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 5 100 pCi/liter 5.0 pCi/liter> 100 pCi/liter 5% of known value Tritium < 4,000 pCi/liter

+/- 1r =169.85 x (known)0 0 9 3 3> 4,000 pCi/liter 10% of known value Radium-226,-228

? 0.1 pCi/liter 15% of known value Plutonium

-> 0.1 pCi/liter, gram, or sample 10% of known value Iodine-131, :5 55 pCi/liter 6 pCi/liter Iodine-129b

> 55 pCi/liter 10% of known value Uranium-238, -5 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 Resultb Resultc Limits Acceptance STW-1205 STW-1205 STW-1206 STW-1206 STW-1206 04/05/10 04/05/10 04/05/10 04/05/10 04/05/10 Sr-89 Sr-90 Ba-1 33 Co-60 Cs-134 63.0 +/- 5.7 37.4 +/- 2.4 63.6 +/- 3.3 83.3 +/- 2.9 71.0 +/- 3.4 145.5 +/- 5.1 194.9 +/- 7.8 60.4 41.3 65.9 84.5 71.6 48.6 -68.2 30.4 -47.4 54.9 -72.5 76.0 -95.3 58.4 -78.8 STW-1206 04/05/10 Cs-137 STW-1206 04/05/10 Zn-65 146.0 131.0 -163.0 186.0 167.0 -219.0 STW-1207 04/05/10 Gr. Alpha 26.5 1 i.7 STW-1207 04/05/10 Gr. Beta 34.5 +/- 1.6 STW-1208 04/05/10 1-131 STW-1209 STW-1209 STW-1209 STW-1210 04/05/10 04/05/10 04/05/10 04/05/10 Ra-226 Ra-228 Uranium H-3 STW-1224 10/04/10 Sr-89 STW-1224 10/04/10 Sr-90 22.7 +/- 0.8 15.2 +/-0.7 15.6 +/- 1.8 59.5 +/-0.7 12955 +/-332 65.3 +/- 5.7 39.9 +/- 2.3 67.2 +/- 4.3 53.2 +/- 3.3 47.3 +/- 5.1 118.0 +/-5.9 107.0 +/- 8.7 32.9 37.5 26.4 14.6 15.1 62.3 12400.0 STW-1225 STW-1225 STW-1225 STW-1225 STW-1225 10/04/10 10/04/10 10/04/10 10/04/10 10/04/10 Ba-133 Co-60 Cs-1 34 Cs-137 Zn-65 68.5 43.0 68.9 53.4 43.2 123.0 102.0 42.3 36.6 16.9 -42.6 24.7 -45.0 21.9 -31.1 10.9 -16.8 10.1 -18.3 50.7 -69.1 10800 -13600 55.8 -76.7 31.7 -49.3 57.5 -75.8 48.1 -61.3 34.5 -47.5 111.0 -138.0 91.8 -122.0 21.9-53.7 24.0 -44.2 22.9 -32.3 8.5-13.2 6.4 -12.3 29.8 -41.0 11200 -14200 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STW-1226 10/04/10 Gr. Alpha 30.7 +/- 2.9 STW-1226 10/04/10 Gr. Beta 32.7 +/- 0.8 STW-1227 10/04/10 1-131 STW-1228 STW-1228 STW-1228 STW-1229 10/04/10 10/04/10 10/04/10 10/04/10 Ra-226 Ra-228 Uranium H-3 28.6 + 1.1 11.8 +/-0.6 12.0 +/- 1.8 34.8 +/- 0.4 13682 +/-352 27.5 11.4 9.9 36.8 12900.0 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.

Results are presented as the known values, expected laboratory precision (1 sigma, 1 determination) and control limits as provided by ERA.Al-1 TABLE A-2. Crosscheck program results; Thermoluminescent Dosimetry, (TLD, CaSO 4: Dy Cards).mR Lab Code Date Known Lab Result Control Description Value +/- 2 sigma Limits Acceptance Environmental, Inc.2010-1 6/8/2010 30 cm. 75.07 90.78 +/- 3.60 52.55 -97.59 Pass 2010-1 6/8/2010 40 cm. 42.23 50.88 +/- 3.59 29.56 -54.90 Pass 2010-1 6/8/2010 50 cm. 27.03 32.12 +/- 1.90 18.92 -35.14 Pass 201071 6/8/2010 60 cm. 18.77 21.80 +/- 0.90 13.14 -24.40 Pass 2010-1 6/8/2010 70 cm. 13.79 15.38 +/- 1.39 9.65-17.93 Pass 2010-1 6/8/2010 75 cm. 12.01 11.30 +/- 1.07 8.41 -15.61 Pass 2010-1 6/8/2010 80 cm. 10.56 10.90 +/- 0.61 7.39 -13.73 Pass 2010-1 6/8/2010 90 cm. 8.34 7.84 +/- 0.83 5.84 -10.84 Pass 2010-1 6/8/2010 100 cm. 6.76 6.61 +/- 0.52 4.73 -8.79 Pass 2010-1 6/8/2010 110 cm. 5.58 4.29 +/- 0.55 3.91 -7.25 Pass 2010-1 6/8/2010 120 cm. 4.69 3.64 +/- 0.33 3.28 -6.10 Pass 2010-1 6/8/2010 150 cm. 3.00 2.82 +/- 0.84 2.10 -3.90 Pass 2010-1 6/8/2010 180 cm. 2.09 1.55 +/- 0.23 1.46 -2.72 Pass Environmental, Inc.2010-2 12/13/2010 100 cm. 4.94 4.65 +/- 0.57 3.46 -6.42 Pass 2010-2 12/13/2010 110 cm. 4.09 3.50 +/- 0.74 2.86-5.32 Pass 2010-2 12/13/2010 120 cm. 3.43 2.68 +/- 0.36 2.40 -4.46 Pass 2010-2 12/13/2010 150 cm. 2.2 1.75 +/- 0.42 1.54 -2.86 Pass 2010-2 12/13/2010 180 cm. 1.53 1.32 +/- 0.52 1.07 -1.99 Pass 2010-2 12/13/2010 40 cm. 30.89 38.56 +/- 2.11 21.62 -40.16 Pass 2010-2 12/13/2010 50 cm. 19.77 23.35 +/- 1.82 13.84 -25.70 Pass 2010-2 12/13/2010 60 cm. 13.73 14.53 +/- 1.24 9.61 -17.85 Pass 2010-2 12/13/2010 60 cm. 13.73 15.84 +/- 1.53 9.61 -17.85 Pass 2010-2 12/13/2010 80 cm. 7.72 8.33 +/- 0.74 5.40 -10.04 Pass 2010-2 12/13/2010 90 cm. 6.1 5.93 +/- 0.73 4.27 -7.93 Pass A2-1 TABLE A-3. In-House "Spike" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Limits d Acceptance SPW-12648 SPW-279 SPW-391 W-21210 W-21710 W-21710 SPAP-669 SPAP-671 SPAP-671 SPMI-674 SPMI-674*SPMI-674 SPW-676 SPW-676 SPW-676 SPW-678 SPF-680 SPF-680 SPW-682 SPW-2871 W-40510 W-40510 SPW-2083 W-51310 SPW-3181 SPW-3272 SPW-3278 SPW-3280 SPAP-3270 SPAP-3270 SPW-3274 SPW-3274 SPW-3274 SPW-3274 SPMI-3276 SPMI-3276 SPMI-3276 SPMI-3276 1/20/2010 1/27/2010 2/4/2010 2/12/2010 2/17/2010 2/17/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/2512010 2/25/2010 2/25/2010 2/25/2010 4/5/2010 4/5/2010 4/5/2010 4/28/2010 5/13/2010 6/17/2010 6125/2010 6/25/2010 6/25/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 Ra-228 U-238 Ni-63 Ra-226 Gr. Alpha Gr. Beta Gr. Beta Cs-1 34 Cs-137 Co-60 Cs-134 Cs-1 37 Co-60 Cs-1 34 Cs-137 H-3 Cs-134 Cs-137 Tc-99 Ra-228 Gr. Alpha Gr. Beta U-238 Ra-226 Tc-99 H-3 Fe-55 C-14 Cs-134 Cs-137 Co-60 Cs-134 Cs-137 Sr-90 Co-60 Cs-134 Cs-137 Sr-90 40.04 t 2.99 4.52 +/- 0.22 179.70 t 2.96 16.05 +/- 0.39 17.54 +/- 0.37 42.47 +/- 0.39 45.78 +/- 0.11 10.56 +/- 3.15 105.36 +/- 3.15 67.38 +/- 5.65 60.61 +/- 6.28 173.80 +/- 10.30 66.13 +/- 5.22 51.54 +/- 5.97 179.30 t 9.95 59213.70 +/- 709.90 402.56 +/- 22.40 2267.90 +/- 75.60 29.70 +/- 1.51 33.91 +/- 2.85 20.65 +/- 0.42 44.72 +/- 0.40 4.20 +/- 0.32 17.04 +/- 0.50 29.87 +/- 1.09 5489.00 +/- 224.00 17054.00 +/- 348.00 3410.60 +/- 9.75 12.24 +/- 3.13 103.92 +/- 7.14 67.48 +/- 5.53 49.55 +/- 6.11 58.85 +/- 6.54 41.59 +/- 1.83 66.80 +/- 5.25 48.20 +/- 3.88 62.46 +/- 6.33 43.32 +/- 1.63 40.54 4.17 209.62 16.77 20.00 45.20 49.24 10.38 109.20 68.79 51.91 163.80 68.79 51.91 163.80 60407.70 415.00 2180.00 32.34 36.80 20.00 45.20 4.17 16.77 32.34 5928.00 19614.00 4738.00 10.38 109.20 65.84 46.38 54.17 42.72 65.84 46.38 54.17 42.72 28.38 -52.70 0.00 -16.17 146.73 -272.51 11.74 -21.80 10.00 -30.00 35.20 -55.20 29.54 -68.94 0.38 -20.38 98.28 -120.12 58.79 -78.79 41.91 -61.91 147.42 -180.18 58.79 -78.79 41.91 -61.91 147.42 -180.18 48326.16 -72489.24 373.50 -456.50 1962.00 -2398.00 20.34 -44.34 25.76 -47.84 10.00 -30.00 35.20 -55.20 0.00 -16.17 11.74 -21.80 20.34 -44.34 4742.40 -7113.60 15691.20 -23536.80 2842.80 -6633.20 0.38 -20.38 98.28 -120.12 55.84 -75.84 36.38 -56.38 44.17 -64.17 34.18 -51.26 55.84 -75.84 36.38 -56.38 44.17 -64.17 34.18 -51.26 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A3-1 TABLE A-3. In-House "Spike" Samples Concentration (pCi/L)3 Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 Activity Limitsc Acceptance SPW-5081 W-90910 W-90910 W-91010 SPW-2874 XWW-5302 XWW-5302 XWW-5302 XWW-5302 SPW-6035 W-1 20110 W-120110 W-121610 9/9/2010 9/9/2010 9/9/2010 9/10/2010 9/23/2010 10/6/2010 10/6/2010 10/6/2010 10/6/2010 10/21/2010 12/1/2010 12/1/2010 12/16/2010 Tc-99 Gr. Alpha Gr. Beta Ra-226 Ra-228 Ba-133 Co-60 Cs-1 34 Cs-1 37 U-238 Gr. Alpha Gr. Beta Ra-226 30.22 +/- 1.06 20.95 +/- 0.43 45.20 +/- 0.41 17.48 +/- 0.50 34.60 +/- 2.68 154.13 +/- 8.90 24.65 +/- 4.11 14.03 +/- 3.87 61.16 +/- 6.08 4.52 +/- 0.20 20.27 +/- 0.41 46.75 +/- 0.41 17.99 +/- 0.43 32.34 20.00 45.20 16.77 36.80 155.21 23.28 13.95 59.22 4.17 20.00 45.20 16.77 20.34 -44.34 10.00 -30.00 35.20 -55.20 11.74 -21.80 25.76 -47.84 139.69 -170.73 13.28 -33.28 3.95 -23.95 49.22 -69.22 0.00 -16.17 10.00 -30.00 35.20 -55.20 11.74 -21.80 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Liquid sample results are reported in pCi/Liter, air filters( pCi/filter), charcoal (pCi/m 3), and solid samples (pCi/g).b Laboratory codes as follows: W (water), MI (milk), AP (air filter), SO (soil), VE (vegetation), CH (charcoal canister), F (fish).c Results are based on single determinations." Control limits are established from the precision values listed in Attachment A of this report, adjusted to +/- 2a.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 (4.66ca) Acceptance Type LLD Activityc Criteria (4.66 a)SPW-12658 SPW-280 SPW-392 W-21210 W-21710 W-21710 SPAP-668 SPAP-670 SPAP-670 SPMI-672 SPMI-672 SPW-675 SPW-675 SPW-675 SPF-679 SPF-679 SPW-681 SPW-2881 W-40510 W-40510 SPW-2084 W-51310 SPW-3271 SPW-3278 SPW-3279 SPAP-3269 SPAP-3269 SPW-3273 SPW-3273 SPW-3273 SPW-3273 SPMI-3275 SPMI-3275 SPMI-3275 SPMI-3275 Water Water Water Water Water Water Air Filter Air Filter Air Filter Milk Milk Water Water Water Fish Fish Water Water Water Water Water Water Water Water water Air Filter Air Filter Water Water Water water Milk Milk Milk Milk 1/20/2010 1/27/2010 2/4/2010 2/12/2010 2/17/2010 2/17/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 2/25/2010 4/5/2010 4/5/2010 4/5/2010 4/28/2010 5/13/2010 6/25/2010 6/25/2010 6/25/2010 6/28/2010 6/28/2010 6128/2010 6/28/2010 6/28/2010 6/25/2010 6/28/2010 6/28/2010 6/28/2010 6/28/2010 Ra-228 U-238 Ni-63 Ra-226 Gr. Alpha Gr. Beta Gr. Beta Cs-134 Cs-137 Cs-137 1-131(G)Co-60 Cs-137 1-131(G)Cs-134 Cs-137 Tc-99 Ra-228 Gr. Alpha Gr. Beta U-238 Ra-226 H-3 Fe-55 C-14 Cs-134 Cs-1 37 Co-60 Cs-1 34 Cs-1 37 Sr-90 Cs-134 Cs-137 1-131(G)Sr-90 0.79 0.18 15.90 0.03 0.41 0.73 0.11 1.87 2.31 3.52 6.09 1.55 2.69 5.68 10.94 18.37 16.11 0.89 0.40 0.75 0.14 0.03 151.60 634.50 8.57 1.71 2.42 1.64 3.89 4.29 0.50 3.33 3.82 3.71 0.58 0.61 + 0.44 0.07 +/- 0.13-11.80 +/- 9.40 0.06 +/- 0.02 0.09 +/- 0.30 0.23 +/- 0.52 0.008 +/- 0.002-10.75 +/- 9.53 0.22 +/- 0.44-0.20 +/- 0.26-0.09 +/- 0.52 0.03 t 0.10 0.06 +/- 0.02-58.10 +/- 71.90 256.80 +/- 396.40-1.84 +/- 5.18-0.04 +/- 0.22 0.81 +/- 0.36 2 1 20 I 1 3.2 3.2 100 100 10 20 10 10 20 100 100 10 2 1 3.2 1 1 200 1000 200 100 100 10 10 10 1 10 10 20 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 ActivityO Criteria (4.66 (5)SPW-5080 W-9091 0 W-9091 0 W-91010 SPW-2884 SPW-6036 W-120110 W-120110 W-121610 BKW-120610 BKW-120610 BKW-120610 BKW-120610 W-121610 Water Water Water Water Water Water Water Water Water water water water water Water 9/9/2010 9/9/2010 9/9/2010 9/10/2010 9/23/2010 10121/2010 12/1/2010 12/1/2010 12/16/2010 12/6/2010 12/6/2010 12/6/2010 12/6/2010 12/16/2010 Tc-99 Gr. Alpha Gr. Beta Ra-226 Ra-228 U-238 Gr. Alpha Gr. Beta Ra-226 Ba-1 33 Co-60 Cs-134 Cs-137 Ra-226 2.15 0.39 0.78 0.04 0.71 0.11 0.43 0.75 0.03 5.66 4.49 4.41 5.33 0.03-0.71 +/- 1.29 0.10 +/- 0.28-0.09 +/- 0.55 0.07 +/- 0.03 1.14 +/- 0.46 0.07 +/- 0.10-0.05 +/- 0.29-0.08 +/- 0.53 0.04 +/- 0.02 0.04 + 0.02 10 1 3.2 1 2 3.2 1 10 10 10 10 10 a Liquid sample results are reported in pCi/Liter, air filters( pCilfilter), 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. For gamma spectroscopic analysis, activity detected below the LLD value is not reported.A4-2 TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)" Averaged Lab Code Date Analysis First Result Second Result Result Acceptance CF-20, 21 CF-20, 21 CF-20, 21 CF-41 42 CF-41, 42 CF-41, 42 MI-111, 112 DW-10010, 10011 DW-10010, 10011 WW-215,216 DW-10022,10023 DW-10022,10023 WW-424,425 DW-10034,10035 DW-10034,10035 SW-382, 383 DW-10046,10047 DW-10046,10047 WW-693, 694 SW-782, 783 SW-782, 783 MI-946, 947 W-1035,1036 W-1035,1036 SW-1285,1286 W-1103,1104 WW-1193,1194 LW-1909,1910 LW-1 909, 1910 DW-10068,10069 DW-10070,10071 DW-10070,10071 AP-1 729, 1730 AP-1782, 1783 E-1392, 1393 E-1392, 1393 WW-1422,1423 SW-1464,1465 XW-1666,1667 SG-1532, 1533 SG-1532,1533 1/4/2010 1/4/2010 1/4/2010 1/4/2010 1/4/2010 1/4/2010 1/12/2010 1/13/2010 1/13/2010 1/18/2010 1/21/2010 1/21/2010 1/28/2010 1/28/2010 1/28/2010 2/11/2010 2/2/2010 2/2/2010 2/23/2010 3/1/2010 3/1/2010 3/9/2010 3/17/2010 3/17/2010 3/17/2010 3/18/2010 3/18/2010 3/24/2010 3/25/2010 3/25/2010 3/29/2010 3/29/2010 3/30/2010 3/30/2010 4/1/2010 4/1/2010 4/11/2010 4/112010 4/1/2010 4/6/2010 4/6/2010 Gr. Beta K-40 Sr-90 Be-7 Gr. Beta K-40 K-40 Ra-226 Ra-226 H-3 Ra-226 Ra-228 H-3 Ra-226 Ra-228 Gr. Beta Ra-226 Ra-228 H-3 Gr. Beta K-40 K-40 Ra-226 Ra-228 H-3 H-3 H-3 H-3 H-3 Gr. Alpha Ra-226 Ra-228 Be-7 Be-7 Gr. Beta K-40 Gr. Beta H-3 Fe-55 Ac-228 Pb-214 10.96 + 0.27 8.88 +/- 0.48 0.02 +/- 0.01 0.45 _+0.11 3.26 +/- 0.10 2.85 _ 0.36 1276.00 +/- 98.96 0.48 +/- 0.10 1.59 +/- 0.61 211.16 +/- 87.57 8.57 +/- 0.91 5.68 +/- 1.36 422.30 t 95.90 0.93 +/-0.13 1.16 +/- 0.62 2.22 +/- 0.68 6.11 +/- 0.91 5.84 +/- 1.11 1458.00 +/- 131.00 1.05 1.50 1485.00 11.78 5.31 377.60 12690 227.38+/- 0.42+/- 0.15+/- 109.30+/- 1.51+/- 2.42+/- 104.50+/- 333+/- 95.19 11.30 +/- 0.28 8.27 +/- 0.78 0.02 +/- 0.01 0.41 +/- 0.14 3.33 +/- 0.11 3.04 +/- 0.22 1334.80 +/- 105.00 0.43 +/- 0.10 1.13 +/- 0.47 291.90 +/- 91.31 10.20 +/- 1.08 3.59 +/- 1.17 484.20 +/- 98.50 0.90 +/- 0.11 1.29 +/- 0.62 1.18 +/- 0.71 7.88 +/- 1.17 6.13 +/- 1.14 1531.00 +/- 133.00 1.60 +/- 0.43 1.52 +/- 0.15 1347.40 +/- 108.30 9.76 +/- 1.26 8.45 +/- 2.78 282.70 +/- 100.70 12679 +/-333 251.81 +/- 96.15 1404.40 +/- 140.80 1.99 +/- 1.03 1.35 +/- 1.05 1.69 +/- 0.16 1.34 +/- 0.49 0.08 +/- 0.01 0.09 +/- 0.01 1.66 +/- 0.08 1076.70 +/- 202.90 19.42 +/- 1.40 233.18 +/- 97.75 7.25 +/- 0.74 20.07 +/- 1.19 13.32 +/- 0.54 11.13 +/- 0.19 8.58 +/- 0.46 0.02 +/- 0.00 0.43 +/- 0.09 3.30 +/- 0.07 2.95 +/- 0.21 1305.40 +/- 72.14 0.46 +/- 0.07 1.36 +/- 0.39 251.53 +/- 63.26 9.39 +/- 0.71 4.64 +/- 0.90 453.25 +/- 68.74 0.92 +/- 0.09 1.23 +/- 0.44 1.70 +/- 0.49 7.00 +/- 0.74 5.99 +/- 0.80 1494.50 +/- 93.34 1.33 +/- 0.30 1.51 +/- 0.11 1416.20 +/- 76.93 10.77 +/- 0.98 6.88 +/- 1.84 330.15 +/- 72.56 12685 +/- 235 239.60 +/- 67.65 1466.90 +/- 100.91 2.20 +/- 0.71 1.22 +/- 0.73 1.64 +/- 0.12 1.25 +/- 0.34 0.08 +/- 0.01 0.09 +/- 0.01 1.63 +/- 0.05 989.50 +/- 135.29 20.83 +/- 1.06 247.62 +/- 69.55 7.15 +/- 0.51 19.76 +/- 0.82 12.99 +/- 0.38 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass 1529.40 +/- 144.60 2.40 +/- 0.97 1.08 +/- 1.02 1.58 +/- 0.17 1.16 +/- 0.47 0.08 +/- 0.01 0.08 +/- 0.01 1.59 +/- 0.07 902.30 +/- 179.00 22.23 +/- 1.58 262.06 +/- 98.96 7.05 +/- 0.71 19.45 +/- 1.14 12.66 +/- 0.52 A5-1 TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance SG-1506, 1507 SG-1506, 1507 SW-1645, 1646 DW-10095, 10096 DW-10095, 10096 W-2013, 2014 W-2013, 2014 WW-2431,2432 SO-2037, 2038 W-2325, 2326 AP-2149, 2150 LW-2191, 2192 G-2170, 2171 G-2170, 2171 G-2170, 2171 SWT-2282, 2283 WW-2233, 2234 WW-2233, 2234 TD-2410, 2411 SG-2347, 2348 F-2463, 2464 XW-2834, 2835 WW-2597, 2598 MI-2639, 2640 SL-2771, 2772 SL-2771, 2772 SW-2879, 2880 SG-2904, 2905 SO-3039, 3040 SO-3039, 3040 SO-3039, 3040 SO-3039, 3040 SO-3039, 3040 SO-3039, 3040 WW-3060, 3061 VE-3351, 3352 VE-3351, 3352 W-3469, 3470 SG-3539, 3540 SG-3539, 3540 AP-3743, 3744 4/7/2010 4/7/2010 4/14/2010 4114/2010 4/14/2010 4/16/2010 4/16/2010 4/19/2010 4/22/2010 4/26/2010 4/29/2010 4/29/2010 5/3/2010 5/3/2010 5/3/2010 5/4/2010 5/5/2010 5/5/2010 5/10/2010 5/13/2010 5/17/2010 5/20/2010 5/25/2010 5/25/2010 6/1/20110 6/1/2010 6/1/2010 6/7/2010 6/8/2010 6/8/2010 6/8/2010 6/8/2010 6/8/2010 6/8/2010 6/14/2010 6/21/2010 6/21/2010 6/25/2010 6/29/2010 6/29/2010 6/30/2010 Ac-228 Pb-214 H-3 Ra-226 Ra-228 Gr. Alpha Gr. Beta H-3 K-40 H-3 Be-7 Gr. Beta Be-7 Gr. Beta K-40 Gr. Beta Gr. Alpha Gr. Beta H-3 Ra-226 K-40 H-3 H-3 K-40 Gr. Beta K-40 H-3 Gamma Be-7 Cs-137 Gr. Beta K-40 U-233/4 U-238 H-3 Be-7 K-40 H-3 Ac-228 Pb-214 Be-7 1.28 +/- 0.15 1.24 +/- 0.10 312.00 +/- 100.00 4.87 +/- 0.53 2.49 +/- 0.56 33.45 +/- 3.98 14.83 +/- 0.96 400.40 +/- 98.10 2.89 +/- 0.40 399.00 +/- 92.00 0.14 +/- 0.08 1.16 +/- 0.56 0.91 +/- 0.32 8.73 +/- 0.22 7.24 +/- 0.44 0.73 +/- 0.52 1.56 +/- 1.47 2.33 +/- 1.14 431.92 +/- 96.50 37.34 +/- 0.42 2.69 +/- 0.56 209.53 +/- 83.34 288.10 +/- 98.20 1428.80 +/- 110.60 5.33 +/- 0.18 4.67 +/- 0.46 335.60 +/- 92.60 5.20 +/- 0.20 0.12 +/- 0.03 0.01 +/- 0.00 22.80 +/- 2.05 11.30 +/- 1.20 0.12 +/- 0.02 0.12 +/- 0.01 199.16 +/- 95.13 1.86 +/- 0.25 6.10 +/- 0.52 573.00 +/- 110.00 14.55 +/- 0.51 15.50 +/- 1.56 0.07 +/- 0.01 1.15 +/- 0.14 1.22 +/- 0.09 352.00 +/- 102.00 5.57 +/- 0.6i 2.76 +/- 0.60 39.11 +/-4.54 16.07 +/- 0.96 377.70 +/- 97.10 2.89 +/- 0.51 429.00 +/- 94,00 0.26 +/- 0.12 0.79 +/- 0.52 0.86 +/- 0.26 9.01 +/- 0.23 7.48 +/- 0.78 1.58 +/- 0.57 2.27 +/- 1.65 4.08 +/- 1.24 403.05 +/- 95.26 37.91 +/- 0.36 2.65 +/- 0.38 263.11 +/- 85.95 155.80 +/- 93.40 1408.60 +/- 107.40 5.30 +/- 0.18 4.88 +/- 0.46 356.40 +/- 93.60 5.50 +/- 0.10 0.13 +/- 0.08 0.01 +/- 0.00 23.84 +/- 2.44 11.70 +/- 1.20 0.13 +/- 0.01 0.13 +/- 0.01 203.59 +/- 95.34 1.85 +/- 0.27 6.10 +/- 0.57 525.00 +/- 108.00 14.57 +/- 0.44 16.80 +/- 1.71 0.07 +/- 0.01 1.22 +/- 0.10 1.23 +/- 0.07 332.00 +/- 71.42 5.22 +/- 0.40 2.63 +/- 0.41 36.28 +/- 3.02 15.45 +/- 0.68 389.05 +/- 69.01 2.89 +/- 0.32 414.00 +/- 65.76 0.20 +/- 0.07 0.97 +/- 0.38 0.89 +/- 0.21 8.87 +/- 0.16 7.36 +/- 0.45 1.16 +/- 0.39 1.92 +/- 1.10 3.21 +/- 0.84 417.48 +/- 67.80 37.63 +/- 0.28 2.67 +/- 0.34 236.32 +/- 59.86 221.95 +/- 67.76 1418.70 +/- 77.08 5.32 +/- 0.13 4.78 +/- 0.33 346.00 +/- 65.83 5.35 +/- 0.11 0.13 +/- 0.04 0.01 +/- 0.00 23.32 +/- 1.59 11.50 +/- 0.85 0.13 +/- 0.01 0.13 +/- 0.01 201.38 +/- 67.34 1.85 +/- 0.18 6.10 +/- 0.39 549.00 +/- 77.08 14.56 +/- 0.34 16.15 +/- 1.16 0.07 +/- 0.01 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass 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 G-3427, 3428 G-3427, 3428 SW-3512, 3513 AP-3680, 3681 VE-3791, 3792 WW-3934, 3935 DW-10135, 10136 DW-10135, 10136 W-4063, 4064 DW-10143, 10144 DW-10148, 10149 DW-10148, 10149 DW-10159, 10160 DW-10159, 10160 SL-4106, 4107 SL-4106, 4107 SL-4106, 4107 SG-4085, 4086 SG-4085, 4086 SWT-4304, 4305 BS-4398, 4399 BS-4398, 4399 VE-4531, 4532 VE-4531, 4532 VE-4531, 4532 VE-4531, 4532 DW-10170, 10171 DW-10170, 10171 AP-4766, 4767 DW-10182, 10183 VE-4928, 4929 SL-4883, 4884 SL-4883, 4884 b W-5135, 5136 SW-5071, 5072 XWW-5246, 5247 7/1/2010 7/1/2010 7/6/2010 7/8/2010 7/12/2010 7/12/2010 7/13/2010 7/13/2010 7/14/2010 7/19/2010 7/23/2010 7/23/2010 7/23/2010 7/23/2010 8/2/2010 8/2/2010 8/2/2010 8/3/2010 8/3/2010 8/3/2010 8/10/2010 8/10/2010 8/11/2010 8/11/2010 8/11/2010 8/11/2010 8/13/2010 8/13/2010 8/26/2010 8/27/2010 9/1/2010 9/1/2010 9/1/2010 9/6/2010 9/13/2010 9/14/2010 Be-7 K-40 H-3 Be-7 K-40 H-3 Ra-226 Ra-228 H-3 Gr. Alpha Ra-226 Ra-228 Ra-226 Ra-228 Be-7 Gr. Beta K-40 Ra-226 Ra-228 Gr. Beta Cs-137 K-40 Gr. Beta K-40 U-233/4 U-238 Ra-226 Ra-228 Be-7 Ra-226 K-40 Gr. Beta K-40 H-3 H-3 H-3 1.18 +/- 0.29 8.79 +/- 0.64 441.00 +/- 103.00 0.16 +/- 0.08 4.37 +/- 0.38 3091.00 +/- 187.00 0.18 +/- 0.07 0.76 +/- 0.44 469.00 +/- 104.00 2.84 +/- 0.74 2.08 +/- 0.39 1.90 +/- 0.61 0.91 +/- 0.14 1.41 +/- 0.54 2.05 +/- 0.20 5.06 +/- 0.32 1.89 +/- 0.24 20.23 +/- 2.04 15.88 +/- 0.41 2.08 +/- 1.07 78.80 +/- 33.50 13708 +/- 795 36.20 +/- 0.90 27.31 +/- 0.70 0.014 +/- 0.003 0.012 +/- 0.003 1.32 +/- 0.14 2.55 +/- 0.78 0.18 +/- 0.09 0.15 +/- 0.08 2.99 +/- 0.41 6.90 +/- 0.20 7.15 +/- 0.99 658.60 +/- 110.80 186.70 +/- 101.10 1990.60 +/- 157.70 1.06 +/- 0.25 7.85 +/- 0.65 423.00 +/- 102.00 0.13 +/- 0.07 4.23 +/- 0.35 3242.00 +/- 191.00 0.26 +/- 0.07 0.81 +/- 0.41 351.00 +/- 99.00 2.49 +/- 0.73 2.97 +/- 0.55 2.00 +/- 0.61 0.79 +/- 0.21 1.30 +/- 0.53 2.05 +/- 0.18 4.62 +/- 0.30 1.70 +/- 0.17 21.45 +/- 2.16 16.24 +/- 0.36 2.44 +/- 0.98 94.30 +/- 51.90 12091 +/- 1110 35.80 +/- 0.90 27.58 +/- 0.62 0.014 +/- 0.003 0.010 +/- 0.002 1.26 +/- 0.14 1.76 +/- 0.71 0.25 +/- 0.13 0.11 +/-0.07 3.18 +/- 0.28 7.10 +/- 0.20 5.07 +/- 0.51 600.90 +/- 108.50 267.30 +/- 104.40 1986.20 +/- 157.60 1.12 +/- 0.19 8.32 +/- 0.46 432.00 +/- 72.48 0.15 +/- 0.05 4.30 +/- 0.26 3166.50 +/- 133.65 0.22 +/- 0.05 0.79 +/- 0.30 410.00 +/- 71.79 2.67 +/- 0.52 2.53 +/- 0.34 1.95 +/- 0.43 0.85 +/- 0.13 1.36 +/- 0.38 2.05 +/- 0.13 4.84 +/- 0.22 1.80 +/- 0.15 20.84 +/- 1.49 16.06 +/- 0.27 2.26 +/- 0.73 86.55 +/- 30.89 12900 +/-683 36.00 +/- 0.64 27.45 +/- 0.47 0.014 +/- 0.002 0.011 +/- 0.002 1.29 +/- 0.10 2.16 +/- 0.53 0.22 +/- 0.08 0.13 +/- 0.05 3.09 +/- 0.25 7.00 +/- 0.14 6.11 +/- 0.56 629.75 +/- 77.54 227.00 +/- 72.66 1988.40 +/- 111.48 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass 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 VE-5114, 5115 VE-5114, 5115 VE-5114, 5115 VE-5114, 5115 VE-5114, 5115 MI-5267, 5268 SO-5357, 5358 AP-5357, 5358 DW-10194, 10195 DW-10194,10195 WW-5442,5443 VE-5469,5470 BS-5886, 5887 BS-5886,5887 G-5513,5514 E-5492,5493 E-5492, 5493 G-5512,5513 G-5512,5513 MI-5541, 5542 MI-5541, 5542 F-6061, 6062 F-6061, 6062 VE-5740, 5741 VE-5761, 5762 VE-5761, 5762 AP-5910, 5911 WW-6294,6295 P-6038, 6039 AP-6195, 6196 WW-6366,6367 SWU-6315, 6316 SO-6336,6337 SO-6336,6337 SO-6336, 6337 AP-6453, 6454 BS-6475,6476 F-6658, 6659 F-6565, 6566 F-6565, 6566 F-6565, 6566 SS-5761,5762 WW-7056,7057 9/9/2010 9/9/2010 9/9/2010 9/9/2010 9/9/2010 9/20/2010 9/23/2010 9/23/2010 9/23/2010 9/23/2010 9/29/2010 9/29/2010 9/29/2010 912912010 10/4/2010 10/4/2010 10/4/2010 10/4/2010 10/4/2010 10/4/2010 10/4/2010 10/9/2010 10/9/2010 10/10/2010 10/12/2010 10/12/2010 10/14/2010 10/18/2010 10/19/2010 10/21/2010 10/23/2010 10/26/2010 10/28/2010 10/28/2010 10/28/2010 10/28/2010 11/1/2010 11/3/2010 11/4/2010 11/4/2010 11/4/2010 11/16/2010 11/30/2010 Be-7 Gr. Beta H-3 K-40 U-233/4 K-40 K-40 Be-7 Ra-226 Ra-228 H-3 K-40 Cs-137 K-40 Be-7 Gr. Beta K-40 Gr. Beta K-40 K-40 Sr-90 H-3 K-40 K-40 Be-7 K-40 Be-7 H-3 H-3 Be-7 H-3 Gr. Beta Cs-137 Gr. Beta K-40 Be-7 Gr. Beta K-40 Cs-1 37 Gr. Beta K-40 K-40 Gr. Beta 1.14 +/- 0.35 34.72 +/- 1.29 79367 +/- 837 22.13 +/- 0.67 0.08 +/- 0.01 1281.10 +/- 118.90 10894.00 +/- 560.00 0.11 +/- 0.02 0.40 +/- 0.10 1.61 +/- 0.65 6706.00 +/- 252.00 2.86 + 0.38 83.36 +/- 23.31 13913.00 +775.40 6.73 +/- 0.40 1.74 +/- 0.05 1.57 +/- 0.17 10.86 +/- 0.44 7.10 +/- 0.54 1090.60 +/- 106.70 1.44 +/- 0.38 7.64 +/- 0.23 2.81 +/- 0.40 4.92 +/- 0.53 1.05 +/- 0.29 3.45 +/- 0.45 0.23 +/- 0.09 1681.49 +/- 146.32 2131.90 +/- 159.50 0.27 +/- 0.11 477.28 +/- 102.02 1.85 +/- 1.00 0.23 +/- 0.03 26.36 +/- 1.67 13.43 +/- 0.76 0.23 +/- 0.12 13.13 +/- 1.83 2.79 _ 0.40 0.06 +/- 0.02 3.90 +/- 0.10 2.63 +/- 0.45 15.42 +/- 1.57 2.09 +/- 0.84 1.48 +/- 0.26 33.38 +/- 1.23 79421 +/-837 21.93 +/- 0.58 0.06 +/- 0.01 1218.60 +/- 110.80 11175.00 +/- 760.00 0.09 +/- 0.02 0.20 +/- 0.10 0.88 +/- 0.47 6510.00 +/- 249.00 2.57 +/- 0.37 58.97 +/- 21.16 13582.00 +/- 710.30 6.36 +/- 0.41 1.77 +/- 0.05 1.55 +/- 0.18 10.39 +/- 0.39 7.41 +/- 0.59 1246.10 +/- 102.60 1.11 +/- 0.35 7.49 +/- 0.23 2.56 +/- 0.50 4.61 +/- 0.34 0.69 +/- 0.15 3.34 +/- 0.29 0.30 +/- 0.12 1637.41 +/- 144.98 2212.00 +/- 161.70 0.26 +/- 0.13 529.99 +/- 104.27 1.40 +/- 0.90 0.23 +/- 0.04 24.78 +/- 1.52 13.73 +/- 0.81 0.30 +/- 0.15 12.75 +/- 1.67 2.94 +/- 0.44 0.04 +/- 0.01 4.10 +/- 0.10 2.57 +/- 0.35 15.87 -1.21 2.22 +/- 0.80 1.31 +/- 0.22 34.05 +/- 0.89 79394 +/- 592 22.03 +/- 0.44 0.07 +/- 0.01 1249.85 +/- 81.26 11034.50 +/- 472.02 0.10 +/- 0.01 0.30 +/- 0.07 1.25 +/- 0.40 6608.00 +/- 177.13 2.72 +/- 0.26 71.17 +/- 15.74 13747.50 +/- 525.78 6.55 +/- 0.29 1.76 +/- 0.04 1.56 +/- 0.12 10.63 +/- 0.29 7.26 +/- 0.40 1168.35 + 74.01 1.27 +/- 0.26 7.57 +/- 0.16 2.68 +/- 0.32 4.77 +/- 0.32 0.87 +/- 0.16 3.40 +/- 0.27 0.26 +/- 0.08 1659.45 +/- 102.99 2171.95 +/- 113.56 0.26 +/- 0.09 503.64 +/- 72.94 1.62 +/- 0.67 0.23 +/- 0.02 25.57 +/- 1.13 13.58 +/- 0.56 0.26 +/- 0.10 12.94 +/- 1.24 2.86 +/- 0.30 0.05 +/- 0.01 3.96 +/- 0.06 2.60 +/- 0.29 15.65 +/- 0.99 2.16 +/- 0.58 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A5-4 TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance SO-7166, 7167 11/30/2010 Cs-137 0.12 +/-0.04 0.11 +/- 0.03 0.11 +/-0.03 Pass SO-7166, 7167 11/30/2010 K-40 14.93 +/- 0.88 14.49 +/- 0.86 14.71 +/- 0.61 Pass WW-7412, 7413 12/6/2010 H-3 469.78 +/- 146.32 503,57 +/- 93.96 486.68 +/- 86.94 Pass MI-7187, 7188 12/8/2010 K-40 1495.10 +/- 129.00 1398.40 +/- 109.10 1446.75 +/- 84.47 Pass MI-7187, 7188 12/8/2010 Sr-90 0.57 +/- 0.31 0.66 +/- 0.28 0.62 +/- 0.21 Pass WW-7255, 7256 12/8/2010 H-3 243.46 +/- 90.39 327.34 +/- 94.11 285.40 +/- 65.24 Pass AP-7276, 7277 12/9/2010 Be-7 0.13 +/- 0.07 0.18 +/- 0.10 0.16 +/- 0.06 Pass XWW-7297, 7298 12/9/2010 H-3 686.00 +/- 102.00 764.60 +/- 105.00 725.30 +/- 73.19 Pass AP-7344, 7345 12/16/2010 Be-7 0.16 +/- 0.09 0.17 +/- 0.09 0.16 +/- 0.06 Pass SWT-7480, 7481 12/28/2010 Gr. Beta 0.90 +/- 0.40 1.03 +/- 0.41 0.97 +/- 0.29 Pass Note: Duplicate analyses are performed on every twentieth sample received in-house.

Results are not listed for those analyses with activities that measure below the LLD.a Results are reported in units of pCi/L, except for air filters (pCi/Filter), food products, vegetation, soil, sediment (pCi/g).b Analysis was repeated, result of reanalysis:

4.83 +/- 0.29 pCi/L.A5-5 TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)a.Concentration b Known Control Lab Code c Date Analysis Laboratory result Activity Limits d Acceptance STVE-1 199 STVE-1 199 STVE-1 199 STVE-1 199 STVE-1 199 STVE-1199 03/01110 03/01/10 03/01/10 03/01/10 03/01/10 03101110 Co-57 Co-60 Cs-134 Cs-1 37 Mn-54 Zn-65 0.01 +/- 0.03 3.39 +/- 0.12 4.74 +/- 0.15 3.32 +/- 0.17 0.01 +/- 0.05 8.03 +/- 0.33 0.40 +/- 0.05 3.03 +/- 0.07 0.00 3.27 4.39 3.06 0.00 7.10 0.68 3.09 2.29 -4.25 3.07 -5.71 2.14 -3.98 4.97 -9.23 0.00-1.35 1.55 -4.64 STW-1200 03/01/10 Gr. Alpha STW-1200 03/01/10 Gr. Beta STW-1 201 STW-1201 STW-1201 STW-1201 STW-1201 STW-1201 STW-1 201 STW-1 201 STW-1201 STW-1201 STW-1201 STW-1201 STW-1201 STW-1201 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STSO-1202 STAP- 1203 STAP-1203 STAP-1203 STAP-1203 STAP-1203 STAP-1203 STAP-1203 STAP-1203 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01(10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 03/01/10 Am-241 Co-57 Co-60 Cs-1 34 Cs-137 Fe-55 H-3 Mn-54 Ni-63 Sr-90 Tc-99 U-233/4 U-238 Zn-65 Co-57 Co-60 Cs- 134 Cs- 137 K-40 Mn-54 Sr-90 U-233/4 U-238 Zn-65 Am-241 Co-57 Co-60 Cs- 134 Cs-137 Mn-54 Sr-90 Zn-65 1.05 +/- 0.08 28.90 t 0.40 0.06 t 0.05-0.03 t 0.09 60.60 +/- 0.60 3.00 +/- 14.40 93.20 +/- 18.30 27.80 1 0.40 49.10 +/- 3.50-0.10 +/- 0.60 0.50 +/- 0.50 1.21 +/- 0.05 1.20 +/- 0.05 42.70 +/- 0.80 520.00 +/- 10.80 599.10 +/- 2.80 666.10 +/- 4.70 774.40 +/- 4.50 562.00 +/- 15.30 866.20 +/- 4.60 225.50 +/- 11.80 59.90 +/- 2.50 62.10 t 2.60-1.23 +/- 1.96 0.10 +/- 0.01 0.01 +/- 0.02 2.63 +/- 0.19 2.21 +/- 0.34 1.66 +/- 0.22* 3.42 +/- 0.26 0.02 +/- 0.06-0.05 +/- 0.11 1.30 28.30 0.00 0.00 60.60 0.00 90.80 26.90 59.90 0.00 0.00 1.22 1.25 40.70 522.00 622.00 733.00 779.00 559.00 849.00 288.00 60.00 64.00 0.00 0.15 0.00 2.47 2.13 1.53 3.02 0.00 0.00 0.91 -1.69 19.80 -36.80 42.40 -78.80 63.60 -118.00 18.80 -35.00 41.90 -77.90 0.85 -1.59 0.88 -1.63 28.50 -52.90 365.00 -679.00 435.00 -809.00 513.00 -953.00 545.00 -1013.00 391.00 -727.00 594.00 -1104.00 202.00 -374.00 42.00 -78.00 45.00 -83.00 0.10 -0.19 1.73 -3.22 1.49 -2.77 1.07 -1.99 2.11 -3.93 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A6-1 TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)a.Concentration b Known Control Lab Code c Date Analysis Laboratory result Activity Limits d Acceptance STAP-1204 03/01/10 Gr. Alpha STAP-1204 03/01/10 Gr. Beta 0.13 +/- 0.03 1.46 +/- 0.07 0.43 1.29 0.00 -0.85 0.65 -1.94 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 STW-1211 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08101/10 08/01/10 08/01/10 08/01/10 08/01/10 Am-241 Co-57 Co-60 Cs-134 Cs-137 Fe-55 H-3 K-40 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 Tc-99 U-233/4 U-238 Zn-65 STW-1212 08/01/10 Gr. Alpha STW-1212 08/01/10 Gr. Beta 0.02 t 0.02 36.40 +/- 4.80 28.30 +/- 1.00 29.30 +/- 2.10 44.60 +/- 1.80 48.50 +/- 20.10 503.60 +/- 12.80 38.50 +/- 2.50 0.10 +/- 0.30 49.30 +/- 3.10 1.49 +/- 0.15 1.20 +/- 0.10 9.20 +/- 1.30 28.10 +/- 0.90 2.04 t 0.14 2.05 +/- 0.14 32.80 +/- 3.00 1.54 +/- 0.09 4.13 +/- 0.15 9.60 +/- 0.54 0.05 +/- 0.08 4.83 +/- 0.26 6.45 +/- 0.66 7.12 +/- 0.66 6.05 +/- 0.74 0.10 +/- 1.60 370.00 +/- 6.00 1005.00 +/-21.00 755.00 +/- 15.00 783.00 +/- 54.00 942.00 +/- 15.00 69.20 +/- 6.20 76.50 +/- 6.20 3.50 +/- 8.00 76.50 +/- 6.20 271.40 +/- 9.00 310.00 +/- 18.00 0.00 36.00 28.30 31.40 44.20 60.20 453.40 38.90 0.00 56.10 1.81 1.35 8.30 33.60 2.01 2.07 31.00 1.92 4.39 8.27 0.00 4.79 5.88 6.29 5.39 0.00 343.00 940.00 670.00 699.00 820.00 64.00 71.00 0.00 71.00 289.00 265.00 25.20 -46.80 19.80 -36.80 22.00 -40.80 30.90 -57.50 42.10 -78.30 317.40 -589.40 27.20 -50.60 39.30 -72.90 1.27 -2.35 0.95 -1.76 5.80 -10.80 23.50 -43.70 1.41 -2.61 1.45 -2.69 21.70 -40.30 0.58 -3.26 2.20 -6.59 5.79 -10.75 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STVE-1213 STVE-1213 STVE-1213 STVE-1213 STVE-1213 STVE-1213 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 STSO-1214 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01/10 08/01110 08/01/10 08/01/10 08/01/10 08/01/10 08/01110 08/01/10 08/01/10 Co-57 Co-60 Cs-134 Cs-137 Mn-54 Zn-65 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Pu-2o38 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 3.35 4.12 4.40 3.77-6.23-7.64-8.17-7.01 240.00 -446.00 658.00 -1222.00 469.00 -871.00 489.00 -909.00 574.00 -1066.00 45.00 -83.00 50.00 -92.00 50.00 -92.00 202.00 -376.00 186.00 -345.00 A6-2 TABLE A-6. Department of Energy's Mixed Analyte Performance Evaluation Program (MAPEP)a.Concentration b Known Control Lab Code C Date Analysis Laboratory result Activity Limits d Acceptance STAP-1215 08/01/10 Co-57 4.47 +/- 0.21 4.08 2.86 -5.30 Pass STAP-1215 08/01/10 Co-60 3.15 +/- 0.30 2.92 2.04 -3.80 Pass STAP-1215 08/01/10 Cs-134 3.03 +/- 0.17 2.98 2.09 -3.87 Pass STAP-1215 08/01/10 Cs-137 0.01 +/- 0.05 0.00 -Pass STAP-1215 08/01/10 Mn-54 3.69 +/- 0.39 3.18 2.23 -4.13 Pass STAP-1215 08/01/10 Sr-90 1.00 +/- 0.12 1.01 0.71 -1.31 Pass STAP-1215 08/01/10 Zn-65 0.03 +/- 0.15 0.00 -Pass STAP-1216 08/01/10 Gr. Alpha 0.01 + 0.01 0.00 Pass STAP-1216 08/01/10 Gr. Beta 0.54 +/- 0.05 0.50 0.25 -0.75 Pass Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the Department of Energy's Mixed Analyte Performance Evaluation Program, Idaho Operations office, Idaho Falls, Idaho b Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

c Laboratory codes as follows: STW (water), STAP (air filter), STSO (soil), STVE (vegetation).

d MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP. A known value of "zero" indicates an analysis was included in the testing series as a "false positive".

MAPEP does not provide control limits.A6-3 TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.Concentration (pCi/L)Lab Code b Date Analysis Laboratory ERA Control Result c Result d Limits Acceptance STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1 217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 STAP-1217 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 Am-241 Co-60 Cs-1 34 Cs-137 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/234 U-238 Uranium Zn-65 STAP-1218 09/20/10 Gr. Alpha STAP-1218 09/20110 Gr. Beta STSO-1219 STSO-1219 STSO-1 219 STSO-1 219 STSO-1219 STSO-1219 STSO-1219 STSO-1 219 STSO-1219 STSO-1219 STSO-1 219 STSO-1219 STSO-1219 STSO-1219 e STSO-1219 0 STSO-1219 e STSO-1219 STVE-1220 STVE-1220 STVE-1220 STVE-1220 STVE-1220 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09120/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20110 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 Ac-228 Am-241 Bi-212 Bi-214 Co-60 Cs-134 Cs-137 K-40 Mn-54 Pb-212 Pb-214 Pu-238 Pu-239/40 U-233/234 U-238 Uranium Zn-65 55.6 +/- 2.9 517.1 +/- 9.1 384.6 +/- 33.7 589.4 +/- 7.1 0.0 +/- 0.0 76.5 +/- 4.0 73.0 +/- 3.8 172.9 +/- 21.3 64.9 +/- 3.9 68.0 +/- 4.0 135.5 +/- 8.7 563.1 +/- 15.3 66.1 +/- 3.2 69.9 +/- 2.5 1632.0 +/- 80.4 1063.0 +/- 120.9 1752.0 +/- 255.6 909.3 +/- 38.9 4852.0 +/- 153.5 2190.0 +/- 50.7 3584.0 +/- 42.5 10017.0 +/- 274.5 0.0 +/- 0.0 1573.0 +/- 28.2 999.0 +/- 39.2 1568.0 +/- 155.0 1445.0 +/- 142.9 599.4 +/- 69.4 633.8 +/- 71.3 1248.0 +/- 152.7 2447.0 +/- 60.1 1108.0 +/- 38.7 1161.0 +/- 57.3 1400.0 +/- 43.0 27400.0 +/- 683.4 0.0 +/- 0.0 74.1 479.0 388.0 514.0 72.9 69.6 159.0 71.8 71.2 146.0 465.0 52.3 52.7 1830.0 1120.0 2070.0 983.0 4780.0 2240.0 3530.0 10700.0 1640.0 969.0 1280.0 1180.0 1360.0 1340.0 2770.0 2300.0 1010.0 1040.0 1260.0 22600.0 43.3 -102.0 371.0 -598.0 253.0 -480.0 386.0 -675.0 50.0 -95.8 50.5 -90.1 70.0 -247.0 45.2 -106.0 45.6 -101.0 74.6 -232.0 322.0 -644.0 27.1 -78.7 32.5 -77.0 1170.0 -2580.0 669.0 -1440.0 543.0 -3100.0 603.0 -1410.0 3480.0 -6420.0 1440.0 -2700.0 2700.0 -4580.0 7760.0 -14500.0 1060.0 -2310.0 580.0 -1440.0 733.0 -1800.0 805.0 -1570.0 862.0 -1690.0 819.0 -1700.0 1580.0 -3740.0 1820.0 -3080.0 683.0 -1450.0 595.0 -1440.0 924.0 -1750.0 16200.0 -32000.0 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Fail Fail Pass Pass Pass Pass Pass Pass Co-60 Cs-134 Cs-137 K-40 Mn-54 A7-1 TABLE A-7. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)a.Concentration (pCi/L)Lab Code b Date Analysis Laboratory ERA Control Result c Result d Limits Acceptance STVE-1220 STVE-1220 STVE-1220 STVE-1220 STVE-1220 STVE-1220 STVE-1220 STVE-1220*STVE-1220 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 STW-1221 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20110 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20110 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 09/20/10 Am-241 Cm-244 Pu-238 Pu-239/40 Sr-90 U-233/234 U-238 Uranium Zn-65 Am-241 Co-60 Cs-134 Cs-137 Fe-55 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/234 U-238 Uranium Zn-65 4185.0 +/- 180.0 2329.0 +/- 132.5 4912.0 +/- 194.0 4765.0 +/- 111.0 7706.0 +/- 583.9 3862.0 +/- 203.0 3926.0 +/- 205.3 7671.0 +/- 201.2 1443.0 +/- 81.0 127.9 +/- 4.2 697.8 +/- 10.4 437.5 +/- 13.3 612.8 +/- 11.6 936.8 +/- 508.2 0.0 +/- 0.0 148.1 +/- 6.0 154.1 +/- 6.2 872.3 +/- 13.4 99.1 +/- 4.4 103.7 +/- 4.5 206.5 +/- 9.8 489.1 +/- 16.2 110.6 +/-3.5 134.6 +/- 2.6 23500.0 +/- 1438.0 4760.0 2740.0 4740.0 4470.0 7810.0 4010.0 3980.0 8180.0 1210.0 176.0 714.0 492.0 625.0 825.0 162.0 148.0 921.0 109.0 108.0 221.0 489.0 146.0 143.0 2710.0 -6540.0 1350.0 -4270.0 2560.0 -6940.0 2770.0 -6100.0 4360.0 -10400.0 2750.0 -5320.0 2800.0 -5030.0 5620.0 -10600.0 874.0 -1650.0 120.0 -238.0 622.0 -844.0 363.0 -565.0 531.0 -749.0 480.0 -1100.0 122.0 -201.0 114.0 -183.0 585.0 -1230.0 82.2 -140.0 82.5 -134.0 159.0 -294.0 414.0 -610.0 64.8 -216.0 83.6 -210.0 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STW-1222 09/20/10 Gr. Alpha STW-1222 09/20/10 Gr. Beta STW-1223 09/20/10 H-3 21600.0 14100.0 -31900.0 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: STW (water), STAP (air filter), STSO (soil), STVE (vegetation).

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.Analysis was repeated using total dissolution.

Results of the reanalysis, U-233/234:

1137 +/- 254 pCi/kg, U-238: 1193 +/- 116 pCi/kg, Total Uranium: 2379 +/- 254 pCi/kg.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 2010 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 (pCi/m 3)Gross Beta (317)0.01 0.026 (265/265)(0.007 -0.050)49 0.8 miles NNE 49 0.8 miles NNE Gamma (24)Be-7 1-131 (317)0.026 (53/53)(0.007 -0.048)0.083 (4/4)(0.058 -0.105)Station 53 0.026 (52/52)(0.009 -0.052)0.082 (4/4)(0.059 -0.099)0 0.082 (20/20)(0.058 -0.105)0 0 Air Radioiodine (pCi/m 3)Direct Radiation Dosimeters (mR per std.90-day Qtr.)Surface Water (pCi/I)0.07 -(0/265)N/A N/A-(0/52)Stations 39, 48 &53 19.7 (12/12)(17.9 -22.7)Gamma Dose (176)Gamma (24)Tritium (24)Fe-55 (1)1-131 (32)Gamma (32)Tritium (32)18.9 (164/164)(11.0 -29.2)47 0.16 miles S 25.2 (4/4)(21.8 -29.2)0-(0/12)N/A N/A JRR-(0/12)-(0/12)3,000 11,428 (12/12)(9,645 -13,436)SP 3.2 miles SSE 11,428 (12/12)(9,645 -13,436)-(0/1)Ground Water (pCi/I)1 -(0/28)N/A N/A N/A N/A N/A N/A N/A N/A B-12-(0/4)-(0/4)-(0/4)0 0 0 0 0 0-(0/28)2,000 -(0/28)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 2010 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 Water (pCi/I)1-131 (25)Gross Beta (25)Gamma (25)1 -(0/12)4 2.8(12/12)

(1.4-3.9)N/A 10-DW 26.1 miles SSE N/A BW-15-(0/13)2.9 (13/13)(1.3-5.1)2.8(12/12)

(1.4- 3.9)-(0/12)N/A N/A N/A N/A-(0/13)-(0/4)Tritium (8)Gamma (5)2,000 -(0/4)0 0 0 0 0 0 Shoreline Sediment (pCi/kg dry)JRR 10,950 (2/2)(9,530 -12,370)K-40 Cs-137 Fish (pCi/kg wet)Gamma (22)K-40 Tritium (22)-10,133 (3/3)(9,012 -11,494)180 143.1 (2/3)(101.9- 184.2)-3,202 (15/15)(2,807 -3,733)-7,481 (15/15)(6,096 -8,358)DC 0.8 miles WNW DC 0.8 miles WNW 184.2 (1/2)10,253 (2/2)(9,012 -11,494)116.8 (1/2)JRR CCL 0.6 miles E to NNW CCL 0.6 miles E to NNW 3,202 (15/15)(2,807 -3,733)7,481 (15/15)(6,096 -8,358)3,280 (7/7)(2,674 -3,726)0-(0/7)0 Page B-3** Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (f)

RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM

SUMMARY

Name of Facility:

Wolf Creek Generating Station Docket No.: 50-482 Location of Facility:

Coffey County, Kansas Reporting Period: Annual 2010 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

• • Food and Garden (pCi/kg wet)Gamma (17)Be-7 K-40 813 (11/11)(418 -1,856)4,367 (11/11)(2,717 -6,097)Q-6 2.4 miles NW Q-6 2.4 miles NW 1,761 (2/2)(1,667 -1,856)5,509 (2/2)(4,921 -6,097)D-2 662 (6/6)(376 -1,293)5,643 (6/6)(3,636 -7,604)0 0 NR-U1 Crops (pCi/kg wet)Bottom Sediment (pCi/kg dry)Gamma (4)K-40 2,771 (2/2)(2,671 -2,871)NR-D2 11.5 miles S 2,871 (1/1)Gamma (11)8,555 (2/2)(2,833 -14,278)JRR 9,194 (2/2)(5,348 -13,040)0 K-40 11,659 (9/9)(9,696 -13,708)UHS 0.6 miles E 12,278 (6/6)(10,870-13,708)

Cs-1 37 66 (7/9)(40- 111)-(0/1)DC 0.8 miles WNW N/A 111 (1/2)112 (1/2)0 0 0 Fe-55 (2)N/A-(0/1)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 2010 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 Vegetation (pCi/kg wet)Gamma (2)No Control Be-7 K-40 561 (2/2)(431 -691)-2,558 (2/2)(2,449 -2,667)-9,114(2/2)

(8,791 -9,437)Soil (pCi/kg dry)Gamma (2)DC-ALT 1.5 miles NW EEA 3.0 miles NNW EEA 3.0 miles NNW EEA 3.0 miles NNW 691 (1/1)2,667 (1/1)0 0 No Control K-40 9,437 (1/1)336(1/1)0 0 Cs-1 37-336 (1/2)Deer (pCi/kg wet)Gamma (1)No Control K-40-2,793 (1/1)R2.5 2.5 miles NNW R2.5 2.5 miles NNW 2,793 (1/1)626(1/1)0 0 Tritium (1)626(1/1)Page B-5** 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 2010 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

• • Alligator (pCi/kg wet)Gamma (1)No Control K-40 1,899(1/1) 7,737 (1/1)CCL 1.5 miles WNW CCL 1.5 miles WNW 1,899(1/1) 7,737 (1/1)0 0 Tritium (1)Page B-6** Mean and range based upon detectable measurements only. Fraction of detectable measurements at specified locations is indicated in parentheses (f)

Air Particulate and Charcoal Filters Location:

002 Collection Start Date 28-DEC-09 04-JAN- 10 11-JAN-10 1 I-JAN-10 18-JAN-1 0 25-JAN-1 0 01-FEB-10 08-FEB-1 0 16-FEB-1 0 22-FEB-10 01-MAR-10 08-MAR-1 0 15-MAR-10 22-MAR- 10 29-MAR- 10 05-APR-1 0 12-APR-1 0 19-APR- 10 26-APR-1 0 03-MAY- 10 11-MAY-10 17-MAY-10 24-MAY-1 0 02-JUN-10 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 19-JUL-10 26-JUL-10 02-AUG-10 09-AUG-10 16-AUG-10 23-AUG-10 30-AUG-10 07-SEP-1 0 Collection End Date 04-JAN-1 0 11-JAN-10 18-JAN-1 0 18-JAN-10 25-JAN- 10 01-FEB-10 08-FEB-10 16-FEB-1 0 22-FEB-10 01-MAR-10 08-MAR-1 0 15-MAR-10 22-MAR- 10 29-MAR- 10 05-APR-10 12-APR-10 19-APR- 10 26-APR-10 03-MAY-1 0 11 -MAY-10 17-MAY-1 0 24-MAY-1 0 02-JUN-10 08-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 26-JUL-10 02-AUG-1 0 09-AUG-10 16-AUG-10 23-AUG-1 0 30-AUG-1 0 07-SEP-10 13-SEP-10 Volume m 3 Gross Beta Concentration (pCi/lm 3)1-131 Concentration (pCi/m 3`)Duplicate Analysis 323 296 310 310 282 313 299 359 245 299 284 291 295 290 280 289 291 279 301 343 257 307 372 266 266 261 303 307 393 260 297 295 295 298 304 293 290 297 351 257 0.041 0.040 0.047 0.049 0.018 0.028 0.039 0.029 0.022 0.033 0.026 0.009 0.017 0.017 0.027 0.016 0.024 0.021 0.017 0.015 0.011 0.013 0.026 0.021 0.017 0.012 0.019 0.017 0.019 0.029 0.019 0.017 0.027 0.030 0.023 0.038 0.026 0.017 0.015+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.004 0.004 0.005 0.005 0.004 0.004 0.005 0.004 0.004 0.004 0.004 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004 0.003 0.003 0.004 0.004 0.003 0.004 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004 0.006 0.009 0.008 0.012 0.012 0.009 0.008 0.014 0.010 0.008 0.014 0.020 0.012 0.012 0.007 0.013 0.010 0.011 0.010 0.018 0.016 0.007 0.009 0.012 0.011 0.008 0.014 0.008 0.010 0.013 0.009 0.009 0.007 0.011 0.009 0.011 0.010 Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -I Air Particulate and Charcoal Filters Location:

002 Collection Start Date 07-SEP-10 13-SEP-10 20-SEP-10 27-SEP-10 04-OCT- 10 11-OCT-10 19-OCT- 10 19-OCT-1 0 25-OCT-1 0 01-NOV-10 09-NOV-1 0 15-NOV-10 22-NOV-10 29-NOV-10 06-DEC-1 0 13-DEC-1 0 20-DEC-10 27-DEC-1 0 Collection End Date 13-SEP-10 20-SEP-10 27-SEP-10 04-OCT- 10 11-OCT-10 19-OCT-1 0 25-OCT-1 0 25-OCT-1 0 01-NOV-10 09-NOV-10 15-NOV-10 22-NOV-1 0 29-NOV-1 0 06-DEC-1 0 13-DEC-10 20-DEC-10 27-DEC-1 0 03-JAN-1i1 Volume Gross Beta m 3 Concentration (pCi/m3 3)1-131 Concentration (pCi/m 3)257 295 306 299 295 343 253 253 307 351 254 303 299 318 300 294 322 303 0.017 0.027 0.023 0.017 0.034 0.037 0.034 0.034 0.021 0.018 0.029 0.036 0.035 0.035 0.045 0.041 0.034 0.033+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1--i-I-+1-+1-+1-+1-0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.005 0.004 0.003 0.005 0.004 0.004 0.004 0.005 0.005 0.004 0.004 0.013 0.013 0.011 0.009 0.009 0.015 0.013 0.015 0.018 0.013 0.014 0.012 0.007 0.010 0.008 0.010 Duplicate Analysis Duplicate Duplicate'2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -2 Air Particulate and Charcoal Filters Location:

018 Collection Start Date 28-DEC-09 04-JAN-1 0 11-JAN-10 18-JAN-10 25-JAN- 10 01-FEB-10 08-FEB-1 0 16-FEB-1 0 22-FEB-10 01-MAR-10 08-MAR-1 0 15-MAR-1 0 22-MAR-1 0 29-MAR-1 0 05-APR-10 05-APR-1 0 12-APR-1 0 19-APR-1 0 26-APR-1 0 03-MAY-1 0 11 -MAY-10 17-MAY-1 0 24-MAY-1 0 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 02-AUG-10 09-AUG-10 16-AUG-10 23-AUG-1 0 30-AUG-1 0 07-SEP-10 13-SEP-10 20-SEP-1 0 Collection End Date 04-JAN-10 11-JAN-10 18-JAN-1 0 25-JAN-1 0 01-FEB-10 08-FEB-1 0 16-FEB-1 0 22-FEB-1 0 01-MAR-10 08-MAR-1 0 15-MAR-1 0 22-MAR-1 0 29-MAR-1 0 05-APR-10 12-APR-10 12-APR-10 19-APR-1 0 26-APR-1 0 03-MAY-1 0 11 -MAY- 10 17-MAY-1 0 24-MAY-1 0 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 02-AUG-1 0 09-AUG-1 0 16-AUG-10 23-AUG-10 30-AUG-10 07-SEP-10 13-SEP-10 20-SEP-10 27-SEP-1 0 Volume Gross Beta m 3 Concentration (pCilm 3)1-131 Concentration (pCilm 3)Duplicate Analysis 314 298 299 296 309 295 360 247 302 291 296 301 295 286 288 288 279 290 146 345 264 305 373 267 246 305 297 365 257 304 297 303 302 299 294 299 353 259 300 300 0.040 0.035 0.047 0.017 0.028 0.030 0.024 0.021 0.031 0.025 0.008 0.017 0.020 0.025 0.037 0.040 0.032 0.019 0.017 0.014 0.011 0.011 0.026 0.020 0.017 0.013 0.022 0.016 0.022 0.018 0.016 0.023 0.027 0.022 0.035 0.025 0.020 0.018 0.029 0.022+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.004 0.004 0.005 0.004 0.004 0.004 0.003 0.004 0.004 0.004 0.003 0.004 0.004 0.004 0.004 0.005 0.004 0.004 0.007 0.003 0.004 0.003 0.003 0.004 0.004 0.003 0.004 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004 0.004 0.004 0.007 0.009 0.009 0.011 0.012 0.010 0.008 0.014 0.010 0.008 0.014 0.020 0.012 0.012 0.007 0.013 0.010 0.022 0.009 0.018 0.016 0.007 0.009 0.013 0.011 0.008 0.015 0.008 0.009 0.013 0.009 0.009 0.007 0.011 0.009 0.011 0.010 0.012 0.013 Duplicate 2010 Annual Radiological Environmental Operating Re'port Wolf Creek Generating Station Page C -3 Air Particulate and Charcoal Filters Location:

018 Collection Start Date 27-SEP-10 04-OCT- 10 11-OCT-10 19-OCT-10 25-OCT-10 01-NOV-10 01-NOV-10 09-NOV-1 0 15-NOV- 10 22-NOV-10 29-NOV-10 06-DEC- 10 13-DEC-1 0 20-DEC-1 0 27-DEC-1 0 Collection End Date 04-OCT- 10 11-OCT-10 19-OCT-1 0 25-OCT-1 0 01-NOV-10 09-NOV-10 09-NOV-10 15-NOV- 10 22-NOV-1 0 29-NOV-1 0 06-DEC-1 0 13-DEC-1 0 20-DEC-1 0 27-DEC-1 0 03-JAN-i 1 Volume Gross Beta m 3 Concentration (pCi/m3 3)1-131 Concentration (pCi/lm 3)Duplicate Analysis 306 295 342 252 307 319 319 255 304 305 316 312 296 311 301 0.017 0.037 0.038 0.037 0.023 0.021 0.022 0.025 0.038 0.036 0.041 0.047 0.042 0.033 0.033+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.004 0.004 0.004 0.005 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.005 0.004 0.004 0.010 0.009 0.009 0.015 0.013 0.017 0.018 0.013 0.013 0.012 0.006 0.010 0.008 0.010 Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -4 Air Particulate and Charcoal Filters Location:

032 Collection Start Date 28-DEC-09 04-JAN-1 0 11-JAN-10 18-JAN-10 25-JAN- 10 01-FEB-10 08-FEB-1 0 16-FEB-1 0 22-FEB-1 0 01-MAR-10 08-MAR-1 0 15-MAR-10 22-MAR-1 0 29-MAR-1 0 05-APR-10 12-APR-10 19-APR-10 26-APR-10 26-APR-1 0 03-MAY-1 0 11-MAY-10 17-MAY-10 24-MAY-1 0 02-JUN-10 08-JUN-10 14-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 02-AUG-1 0 09-AUG-10 16-AUG-10 23-AUG-10 30-AUG-10 07-SEP-10 13-SEP-10 Collection End Date 04-JAN-1 0 11-JAN-10 18-JAN-10 25-JAN- 10 01-FEB-10 08-FEB-1 0 16-FEB-10 22-FEB-10 01-MAR-10 08-MAR- 10 15-MAR-10 22-MAR- 10 29-MAR-1 0 05-APR-10 12-APR-10 19-APR- 10 26-APR-10 03-MAY-1 0 03-MAY- 10 11-MAY-10 17-MAY-10 24-MAY-1 0 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 02-AUG-1 0 09-AUG-1 0 16-AUG-10 23-AUG-10 30-AUG-10 07-SEP-10 13-SEP-10 20-SEP-10 Volume Gross Beta m 3 Concentration (pCi/m3 )1-131 Concentration (pCi/nm 3)Duplicate Analysis 319 302 308 287 313 296 354 248 298 290 298 298 289 277 282 285 286 288 288 340 259 307 367 270 249 306 306 300 347 257 299 266 301 306 299 290 296 346 257 297 0.042 0.036 0.038 0.019 0.027 0.040 0.024 0.021 0.031 0.023 0.010 0.018 0.022 0.026 0.027 0.025 0.022 0.020 0.018 0.013 0.010 0.012 0.027 0.024 0.013 0.015 0.012 0.020 0.016 0.033 0.024 0.017 0.023 0.032 0.021 0.031 0.031 0.019 0.018 0.029+1-+1-+1-+1-+1-+1-+1-+1-+1-+1--i-I-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1--i-I-+1-+1-+1-+1-+1-+1-0.004 0.004 0.004 0.004 0.004 0.005 0.004 0.004 0.004 0.004 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004 0.003 0.003 0.004 0.004 0.003 0.003 0.004 0.003 0.005 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004 0.004 0.007 0.009 0.008 0.012 0.012 0.010 0.008 0.014 0.010 0.008 0.014 0.020 0.012 0.012 0.007 0.013 0.010 0.011 0.010 0.018 0.016 0.008 0.009 0.012 0.011 0.008 0.016 0.008 0.009 0.014 0.009 0.009 0.007 0.011 0.009 0.011 0.010 0.012 Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -5 Air Particulate and Charcoal Filters Location:

032 Collection Start Date 20-SEP-10 27-SEP-10 04-OCT-1 0 11 -OCT-10 19-OCT-1 0 25-OCT-1 0 01-NOV-10 09-NOV-1 0 15-NOV-10 22-NOV-10 29-NOV-1 0 06-DEC-1 0 13-DEC-1 0 20-DEC-1 0 27-DEC-1 0 Collection End Date 27-SEP-10 04-OCT- 10 11-OCT-10 19-OCT-1 0 25-OCT-1 0 01-NOV-10 09-NOV-10 15-NOV-10 22-NOV-1 0 29-NOV-1 0 06-DEC-10 13-DEC-10 20-DEC-1 0 27-DEC-1 0 03-JAN-1i1 Volume Gross Beta m 3 Concentration (pCi/m 3)1-131 Concentration (pCilm 3)Duplicate Analysis 297 302 288 342 248 303 346 257 303 303 317 290 296 318 291 0.024 0.016 0.039 0.039 0.034 0.019 0.024 0.030 0.034 0.035 0.037 0.050 0.045 0.030 0.030+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.004 0.004 0.005 0.004 0.005 0.004 0.003 0.005 0.004 0.004 0.004 0.005 0.005 0.004 0.004 0.013 0.011 0.009 0.009 0.016 0.013 0.015 0.018 0.013 0.013 0.012 0.007 0.010 0.008 0.010 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -6 Air Particulate and Charcoal Filters Location:

037 Collection Start Date 28-DEC-09 04-JAN-1 0 11-JAN-10 18-JAN-1 0 18-JAN-1 0 25-JAN-1 0 01-FEB-10 08-FEB-1 0 16-FEB-1 0 22-FEB-1 0 01-MAR- 10 08-MAR-1 0 15-MAR-1 0 22-MAR-1 0 29-MAR-1 0 29-MAR-1 0 05-APR-10 12-APR-1 0 19-APR-10 26-APR-1 0 03-MAY-1 0 11 -MAY- 10 17-MAY-1 0 24-MAY-1 0 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 02-AUG-1 0 09-AUG-1 0 16-AUG-10 23-AUG-1 0 30-AUG-1 0 07-SEP-10 Collection End Date 04-JAN-1 0 11-JAN-10 18-JAN-1 0 25-JAN-1 0 25-JAN-1 0 01-FEB-10 08-FEB-1 0 16-FEB-10 22-FEB-10 01-MAR-10 08-MAR- 10 15-MAR-10 22-MAR-1 0 29-MAR-1 0 05-APR-10 05-APR-10 12-APR-10 19-APR-10 26-APR-1 0 03-MAY-1 0 11 -MAY-10 17-MAY-1 0 24-MAY-1 0 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 02-AUG-1 0 09-AUG-1 0 16-AUG- 10 23-AUG-1 0 30-AUG-1 0 07-SEP-10 13-SEP-10 Volume Gross Beta m 3 Concentration (pCi/mr 3)1-131 Concentration (pCi/rl 3)Duplicate Analysis 314 298 310 305 305 311 298 370 249 310 297 300 301 295 285 285 296 290 299 294 347 259 273 375 269 211 306 309 309 346 256 300 299 304 308 301 293 297 352 257 0.043 0.037 0.045 0.020 0.020 0.025 0.037 0.027 0.022 0.032 0.028 0.010 0.016 0.021 0.028 0.023 0.025 0.026 0.019 0.017 0.017 0.011 0.015 0.025 0.031 0.014 0.012 0.018 0.023 0.015 0.025 0.021 0.019 0.026 0.029 0.021 0.034 0.024 0.015 0.019+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-4-I-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.004 0.004 0.005 0.004 0.004 0.004 0.004 0.003 0.004 0.004 0.004 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004 0.004 0.003 0.005 0.005 0.003 0.004 0.004 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004 0.007 0.009 0.008 0.011 0.012 0.010 0.007 0.013 0.009 0.008 0.014 0.020 0.012 0.012 0.007 0.013 0.010 0.011 0.009 0.018 0.018 0.007 0.009 0.015 0.011 0.007 0.016 0.008 0.009 0.012 0.009 0.009 0.007 0.011 0.009 0.011 0.010 Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -7 Air Particulate and Charcoal Filters Location:

037 Collection Start Date 13-SEP-10 20-SEP-10 20-SEP-10 27-SEP-1 0 04-OCT-1 0 11-OCT-10 11 -OCT-10 19-OCT-1 0 25-OCT-1 0 01-NOV-10 09-NOV-1 0 09-NOV-1 0 15-NOV- 10 22-NOV-10 29-NOV-1 0 06-DEC-1 0 13-DEC-1 0 20-DEC-1 0 27-DEC-1 0 Collection End Date 20-SEP-1 0 27-SEP-10 27-SEP-10 04-OCT- 10 11-OCT-10 19-OCT-1 0 19-OCT-1 0 25-OCT-1 0 01-NOV-10 09-NOV-10 15-NOV- 10 15-NOV- 10 22-NOV-1 0 29-NOV-1 0 06-DEC-10 13-DEC-1 0 20-DEC-1 0 27-DEC-1 0 03-JAN-i 1 Volume Gross Beta m 3 Concentration (pCi/m 3)1-131 Concentration (pCilm 3)Duplicate Analysis 297 310 310 307 298 344 344 255 311 351 258 258 306 304 321 304 296 332 290 0.028 0.025 0.025 0.021 0.033 0.038 0.035 0.036 0.024 0.021 0.030 0.027 0.036 0.036 0.037 0.048 0.041 0.033 0.031+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.004 0.003 0.005 0.004 0.004 0.004 0.004 0.005 0.005 0.004 0.004< 0.012< 0.012< 0.010* 0.009< 0.009 Duplicate 0.015 0.013 0.015 0.018 0.013 0.013 0.012 0.007 0.010 0.008 0.010 Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -8 Air Particulate and Charcoal Filters Location:

049 Collection Start Date 28-DEC-09 04-JAN- 10 11-JAN-10 18-JAN-1 0 25-JAN- 10 01-FEB-10 01-FEB-10 08-FEB-10 16-FEB-1 0 22-FEB-1 0 01-MAR-10 08-MAR-1 0 15-MAR-1 0 22-MAR-1 0 29-MAR-1 0 05-APR-1 0 12-APR-10 19-APR-10 26-APR-1 0 03-MAY-1 0 03-MAY-1 0 11 -MAY- 10 17-MAY-1 0 24-MAY-1 0 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 26-JUL-10 02-AUG-1 0 09-AUG-1 0 16-AUG-10 23-AUG-1 0 23-AUG-1 0 30-AUG-1 0 Collection End Date 04-JAN-1 0 11-JAN-10 18-JAN-1 0 25-JAN-1 0 01-FEB-10 08-FEB-1 0 08-FEB-10 16-FEB-10 22-FEB-10 01-MAR-10 08-MAR-1 0 15-MAR-1 0 22-MAR-10 29-MAR-1 0 05-APR-1 0 12-APR-1 0 19-APR- 10 26-APR-1 0 03-MAY-1 0 11-MAY-10 11-MAY-10 17-MAY-10 24-MAY-1 0 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 02-AUG-1 0 02-AUG-1 0 09-AUG-1 0 16-AUG-10 23-AUG-10 30-AUG-1 0 30-AUG-10 07-SEP-10 Volume Gross Beta m 3 Concentration (pCilm 3)1-131 Concentration (pCi/lm 3)Duplicate Analysis 321 290 308 304 284 294 294 359 254 301 299 300 294 289 290 273 294 265 298 345 345 261 308 349 288 247 300 301 325 256 294 297 298 298 302 301 293 297 297 346 0.042 0.038 0.048 0.017 0.025 0.044 0.039 0.030 0.024 0.031 0.024 0.007 0.018 0.020 0.025 0.023 0.023 0.022 0.017 0.012 0.014 0.007 0.012 0.027 0.021 0.014 0.016 0.017 0.017 0.020 0.020 0.019 0.024 0.025 0.030 0.020 0.039 0.026 0.027 0.018+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.004 0.004 0.005 0.004 0.004 0.005 0.005 0.004 0.004 0.004 0.004 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.003 0.003 0.003 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.006 0.010 0.008 0.011 0.013 0.010< 0.008< 0.013< 0.010< 0.008< 0.014< 0.020< 0.012< 0.012< 0.008< 0.012< 0.011< 0.011< 0.009< 0.018< 0.016< 0.008< 0.009< 0.012< 0.011< 0.008< 0.017< 0.008< 0.010< 0.013< 0.009< 0.009< 0.007< 0.011< 0.009< 0.011 Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -9 Air Particulate and Charcoal Filters Location:

049 Collection Start Date 30-AUG-1 0 07-SEP-10 13-SEP-10 20-SEP-10 27-SEP-10 04-OCT-1 0 04-OCT-1 0 11 -OCT-10 19-OCT-1 0 25-OCT- 10 01-NOV-10 09-NOV-1 0 15-NOV-1 0 22-NOV-1 0 29-NOV-1 0 06-DEC-1 0 13-DEC-1 0 20-DEC-1 0 27-DEC-1 0 27-DEC-10 Collection End Date 07-SEP-1 0 13-SEP-10 20-SEP-10 27-SEP-10 04-OCT-1 0 11-OCT-10 11-OCT-10 19-OCT-1 0 25-OCT-10 01-NOV-10 09-NOV-1 0 15-NOV- 10 22-NOV-1 0 29-NOV-10 06-DEC-1 0 13-DEC-1 0 20-DEC-1 0 27-DEC-1 0 03-JAN-i 1 03-JAN-1i1 Volume Gross Beta m 3 Concentration (pCi/m3 3)1-131 Concentration (pCi/rm 3)346 258 296*304 300 296 296 341 250 307 345 261 301 305 323 301 293 316 313 313 0.017 0.019 0.030 0.026 0.019 0.039 0.033 0.039 0.041 0.026 0.024 0.031 0.037 0.037 0.041 0.048 0.046 0.033 0.030 0.027+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.003 0.004 0.004 0.004 0.004 0.005 0.004 0.004 0.005 0.004 0.003 0.005 0.004 0.004 0.004 0.005 0.005 0.004 0.004 0.004 0.010 0.013 0.013 0.011 0.009 0.009 0.016 0.013 0.015 0.018 0.013 0.013 0.012 0.007 0.010 0.008 0.010 Duplicate Analysis Duplicate Duplicate Duplicate 2010 Annual Radiological EnVironmental Operating Report Wolf Creek Generating Station Page C- 10 Air Particulate and Charcoal Filters Location:

053 Collection Start Date 28-DEC-09 04-JAN-1 0 11-JAN-10 18-JAN-1 0 25-JAN-1 0 01-FEB-10 08-FEB-1 0 16-FEB-1 0 22-FEB-10 01-MAR-10 08-MAR-1 0 15-MAR-1 0 22-MAR-1 0 29-MAR- 10 05-APR-1 0 12-APR-10 19-APR-1 0 26-APR-1 0 03-MAY-1 0 11 -MAY-10 11 -MAY- 10 17-MAY-1 0 24-MAY-1 0 24-MAY-1 0 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 02-AUG-1 0 02-AUG-10 09-AUG-10 16-AUG-10 23-AUG-1 0 30-AUG-1 0 07-SEP-1 0 Collection End Date 04-JAN-1 0 11-JAN-10 18-JAN-1 0 25-JAN-1 0 01-FEB-10 08-FEB-1 0 16-FEB-1 0 22-FEB-1 0 01-MAR-10 08-MAR-1 0 15-MAR-10 22-MAR-1 0 29-MAR-1 0 05-APR-1 0 12-APR-10 19-APR-10 26-APR-1 0 03-MAY-1 0 11 -MAY-10 17-MAY-1 0 17-MAY-1 0 24-MAY-1 0 02-JUN-10 02-JUN-10 08-JUN-10 14-JUN-10 21-JUN-10 28-JUN-10 06-JUL-10 12-JUL-10 19-JUL-10 26-JUL-10 02-AUG-1 0 09-AUG-10 09-AUG-10 16-AUG-10 23-AUG-1 0 30-AUG-1 0 07-SEP-10 13-SEP-10 Volume Gross Beta m 3 Concentration (pCi/m 3)1-131 Concentration (pCi/lm 3)Duplicate Analysis 306 309 309 293 310 305 358 247 306 296 292 305 298 301 298 301 305 292 337 54 54 301 376 376 268 246 299 294 368 257 299 300 302 301 301 302 297 299 351 257 0.041 0.039 0.049 0.018 0.027 0.040 0.029 0.024 0.031 0.027 0.010 0.020 0.023 0.027 0.029 0.022 0.018 0.021 0.016 0.012 0.024 0.027 0.024 0.018 0.009 0.025 0.017 0.019 0.024 0.018 0.021 0.028 0.030 0.023 0.035 0.027 0.016 0.018+1-+1-+1--i-I-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.004 0.004 0.005 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.025 0.003 0.003 0.003 0.004 0.004 0.003 0.004 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004< 0.007< 0.009< 0.008< 0.011< 0.012< 0.009< 0.008< 0.014< 0.010< 0.008< 0.014< 0.019< 0.011< 0.011< 0.007< 0.012< 0.009< 0.011< 0.010< 0.088< 0.016< 0.007 0.009 0.013 0.011 0.008 0.015 0.008 0.009 0.012 0.009 0.009 0.007 0.011 0.009 0.011 0.010 Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 11 Air Particulate and Charcoal Filters Location:

053 Collection Start Date 13-SEP-1 0 20-SEP-1 0 27-SEP-10 04-OCT-1 0 11-OCT-10 19-OCT-1 0 25-OCT-1 0 01-NOV-10 09-NOV-1 0 15-NOV-10 22-NOV-1 0 29-NOV-1 0 06-DEC-10 13-DEC-1 0 20-DEC-1 0 27-DEC-1 0 Collection End Date 20-SEP-1 0 27-SEP-10 04-OCT-1 0 11 -OCT-10 19-OCT-1 0 25-OCT-1 0 01-NOV-10 09-NOV-1 0 15-NOV-1 0 22-NOV-1 0 29-NOV-10 06-DEC-1 0 13-DEC-10 20-DEC-10 27-DEC-10 03-JAN-1i1 Volume Gross Beta m 3 Concentration (pCi/lm 3)1-131 Concentration (pCi/m 3)Duplicate Analysis 298 302 312 296 345 255 306 352 256 303 296 312 308 294 315 295 0.027 0.021 0.019 0.037 0.037 0.033 0.020 0.020 0.028 0.032 0.034 0.039 0.052 0.045 0.032 0.031+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-+1-0.004 0.004 0.004 0.004 0.004 0.005 0.004 0.003 0.005 0.004 0.004 0.004 0.005 0.005 0.004 0.004 0.012 0.013 0.010 0.009 0.009 0.015 0.013 0.015 0.018 0.013 0.014 0.012 0.006 0.010 0.008 0.010 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 12 Quarterly Air Particulate

-Gamma Location:

002 29-MAR-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 28-JUN-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 27-SEP-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 03-JAN-I 1 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-137 Concentration (pCilm 3)0.068+/- 0.014< 0.001< 0.001< 0.001< 0.001* 0.001< 0.001< 0.001< 0.001 Concentration (pCi/m 3)0.092+/- 0.014< 0.001< 0.001< 0.002< 0.001< 0.002< 0.001< 0.001< 0.001 Concentration (pCi/m 3)0.094+/- 0.019< 0.001< 0.001< 0.001< *0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCi/m 3)0.060+/- 0.013< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001* Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 13 Quarterly Air Particulate

-Gamma Location:

018 29-MAR-1 0 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 28-JUN-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 27-SEP-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 03-JAN-11 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 Concentration (pCi/m 3)0.077+/- 0.013< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCi/m 3)0.091+/- 0.017< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCi/m 3)0.093+/- 0.018< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCilm 3)0.068+/- 0.011< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001* Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 14 Quarterly Air Particulate

-Gamma Location:

032 29-MAR-1 0 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 28-JUN-10 Nuclide BE-7 BE-7 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 CS-1 34 CS-1 34 CS-1 37 CS-1 37 27-SEP-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 Concentration (pCi/m 3)0.089+/- 0.015< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCi/m 3)0.091+/- 0.015 0.091+/- 0.015< 0.001< 0.001< 0.001< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCi/m 3)********0.080+/-0.019 0.001 0.001 0.002 0.001 0.001 0.001 0.001< 0.001* Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 15 Quarterly Air Particulate

-Gamma Location:

032 03-JAN-1 I Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 Concentration (pCilm 3)0.070+/- 0.014< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001* Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 16 Quarterly Air Particulate

-Gamma Location:

037 29-MAR-1 0 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 28-JUN-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 27-SEP-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-137 03-JAN-1 I Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 Concentration (pCi/m 3)0.078+/- 0.015< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (DCilm 3)0.100+/- 0.017< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (DCilm 3)0.080+/- 0.016< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (DCi/m 3)0.071+/- 0.015< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001* Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 17 Quarterly Air Particulate

-Gamma Location:

049 29-MAR-1 0 Nuclide BE-7 BE-7 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 CS-134 CS-134 CS-1 37 CS-1 37 28-JUN-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-137 27-SEP-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 Concentration (pCiIm 3)0.070+/- 0.013 0.080+/- 0.013< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCilm 3)0.105+/- 0.014< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCilm 3)0.090+!-0.017 0.001 0.001< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001* Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 18 Quarterly Air Particulate

-Gamma Location:

049 03-JAN-1 I Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 Concentration (pCi/m 3)0.058+/- 0.013< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001* Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 19 Quarterly Air Particulate

-Gamma Location:

053 29-MAR-1 0 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 28-JUN-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 27-SEP-10 Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 03-JAN-Il Nuclide BE-7 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-137 Concentration (pCi/m 3)0.082+/- 0.015< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCilm 3)0.099+/- 0.016< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCilm 3)0.086+/- 0.018< 0.001< 0.001< 0.002< 0.001< 0.001< 0.001< 0.001< 0.001 Concentration (pCi/m 3)0.059+/- 0.011< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001< 0.001* Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 20 Exposure Pathway -Waterborne Surface Water Location JRR Collection Date 27-JAN-1 0 27-JAN- 10 27-JAN- 10 27-JAN- 10 27-JAN- 10 27-JAN-1 0 27-JAN- 10 27-JAN-1 0 27-JAN-1 0 27-JAN- 10 27-JAN-10 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 29-MAR-1 0 29-MAR-1 0 29-MAR- 10 29-MAR-10 29-MAR-1 0 29-MAR- 10 29-MAR- 10 29-MAR-1 0 29-MAR-1 0 29-MAR-1 0 29-MAR- 10 22-APR-1 0 22-APR-1 0 22-APR-1 0 22-APR-1 0 22-APR-1 0 22-APR-1 0 22-APR-10 Nuclide MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-1 34 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA- 140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 Gamma Spectrum & H-3 Concentration (pCi/Liter)

Duplicate Analysis 1.8 1.7 3.2 1.5 2.9 1.5 3.0 2.1 2.7 4.4 163.0 2.3 3.2 3.1 3.1 4.2 1.9 4.3 2.9 3.5 2.5 152.0 2.8 3.0 6.1 2.3 2.2 4.0 4.2 2.7 3.4 2.0 177.0 5.3 5.4 3.7 3.4 5.0 6.2 7.1 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -21 Exposure Pathway -Waterborne Surface Water Location JRR Collection Date 22-APR-10 22-APR-1 0 22-APR-1 0 22-APR-1 0 17-MAY-10 17-MAY-10 17-MAY-1 0 17-MAY-1 0 17-MAY-10 17-MAY-10 17-MAY-1 0 17-MAY-1 0 17-MAY-10 17-MAY-10 17-MAY-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 19-JUL-10 19-JUL-10 19-JUL-10 Nuclide CS-1 34 CS-1 37 BA-LA- 140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-1 34 CS-1 37 BA-LA-140 H-3 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 1-131 CS-1 34 CS-134 CS-137 CS-137 BA-LA- 140 BA-LA-140 H-3 H-3 MN-54 CO-58 FE-59 Gamma Spectrum & H-3 Concentration (pCi/Liter) 5.2 5.2 5.0 175.0 3.3 2.1 5.8 1.5 5.0 2.1 5.2 4.0 3.6 2.5 151.0 1.9 4.4 4.1 2.1 5.0 5.1 1.8 4.0 5.0 8.1 3.7 3.8 6.8 5.6 4.1 4.5 2.7 4.7 2.8 4.4 162.0 162.0 3.6 2.8 4.7 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 22 Exposure Pathway -Waterborne Surface Water Location JRR Collection Date 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 23-AUG-1 0 23-AUG-10 23-AUG-1 0 23-AUG-1 0 23-AUG-10 23-AUG-1 0 23-AUG- 10 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-1 0 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-1 0 27-SEP-1 0 27-SEP-10 27-SEP-10 27-SEP-1 0 Nuclide Gamma Spectrum & H-3 Concentration (pCilLiter)

CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-1 34 CS-1 37 BA-LA-140 H-3 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 1-131 CS-134 CS-134 CS-137 CS-137 BA-LA-140 BA-LA-140 H-3 2.7 5.1 4.0 7.0 3.7 2.9 1.8 179.0 3.0 4.2 6.2 3.6 3.4 3.9 7.6 3.0 4.7 3.4 181.0 3.4 3.2 4.3 2.3 5.2 3.0 4.0 3.3 6.3 4.1 4.8 3.6 9.3 4.9 5.2 2.8 3.9 3.0 4.4 1.3 160.0 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental-Operating Report Wolf Creek Generating Station Page C- 23 Exposure Pathway -Waterborne Surface Water Location JRR Collection Date 27-SEP-10 18-OCT- 10 18-OCT- 10 18-OCT-10 18-OCT-10 18-OCT-1 0 18-OCT-1 0 18-OCT-1 0 18-OCT-1 0 18-OCT-10 18-OCT-10 18-OCT-1 0 15-NOV- 10 15-NOV-10 15-NOV-10 15-NOV-10 15-NOV-10.15-NOV-10 15-NOV-10 15-NOV-10 15-NOV-10 15-NOV-10 15-NOV-10 20-DEC-10 20-DEC-1 0 20-DEC-10 20-DEC-1 0 20-DEC-1 0 20-DEC-1 0 20-DEC-1 0 20-DEC-1 0 20-DEC-10 20-DEC-10 20-DEC-1 0 Nuclide H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-1 34 CS-1 37 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-1 34 CS-1 37 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 Gamma Spectrum & H-3 Concentration (pCi/Liter)

Duplicate Analysis 160.0 3.0 3.4 6.9 4.3 5.3 3.7 10.7 3.3 3.8 5.2 159.0 2.5 3.2 4.3 3.5 5.8 2.9 5.2 2.7 3.2 2.7 163.0 2.7 2.3 4.4 3.0 4.1 2.6 5.0 2.7 3.1 3.5 161.0 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 24 Exposure Pathway -Waterborne Surface Water Location SP Collection Date 27-JAN-1 0 27-JAN-1 0 27-JAN-1 0 27-JAN- 10 27-JAN- 10 27-JAN- 10 27-JAN- 10 27-JAN-1 0 27-JAN-1 0 27-JAN- 10 27-JAN- 10 22-FEB-1 0 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-1 0 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-1 0 29-MAR- 10 29-MAR-1 0 29-MAR-1 0 29-MAR-1 0 29-MAR-1 0 29-MAR-1 0 29-MAR-1 0 29-MAR-1 0 29-MAR-1 0 29-MAR-1 0 29-MAR- 10 22-APR-10 22-APR-10 22-APR-10 22-APR-10 22-APR-10 22-APR-10 22-APR-1 0 Nuclide Gamma Spectrum & H-3 Concentration (pCi/Liter)

Duplicate Analysis MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BA-LA- 140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 12,165+1 11,841 +1 12,324 +-2.0 2.7 3.0 0.9 5.8 3.2 4.8 2.9 1.8 2.3 315.0 2.7 1.2 2.7 2.0 5.3 3.0 4.4 2.7 2.8 4.8 322.0 2.6 3.4 3.4 2.7 7.2 4.1 4.0 3.7 3.7 2.1 315.0 2.1 3.3 4.4 2.9 6.5 4.0 8.1 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 25 Exposure Pathway -Waterborne Surface Water Location SP Collection Date 22-APR-1 0 22-APR-10 22-APR-1 0 22-APR-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-10 17-MAY-10 17-MAY-10 17-MAY-1 0 17-MAY-1 0 17-MAY-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 14-JUN-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 Nuclide Gamma Spectrum & H-3 Concentration (pCi/Liter)

Duplicate Analysis CS-134 CS-1 37 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA- 140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BA-LA- 140 H-3 MN-54 CO-58 FE-59 12,195 +/-10,746+1 10,987+-9,645+-3.6 4.3 4.2 309.0 4.6 3.9 8.9 3.8 5.6 3.4 8.4 4.2 4.4 3.9 308.0 3.1 3.7 4.1 1.6 5.3 3.0 4.4 3.5 5.2 2.7 323.0 3.0 2.1 6.1 2.4 3.9 3.9 6.5 3.0 4.5 2.2 281.0 2.9 2.3 7.6 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 26 Exposure Pathway -Waterborne Surface Water Location SP Collection Date 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-10 23-AUG-1 0 23-AUG-10 27-SEP-10 27-SEP-10 27-SEP-1 0 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-1 0 27-SEP-1 0 27-SEP-10 27-SEP-1 0 27-SEP-1 0 27-SEP-1 0 18-OCT-1 0 18-OCT-1 0 18-OCT-10 18-OCT-10 18-OCT-1 0 18-OCT-1 0 18-OCT-10 18-OCT-1 0 18-OCT-1 0 18-OCT-1 0 18-OCT-1 0 15-NOV-1 0 15-NOV-10 15-NOV-10 15-NOV-1 0 15-NOV-10 15-NOV-1 0 15-NOV-10 15-NOV-10 15-NOV- 10 Nuclide Gamma Spectrum & H-3 Concentration (pCilLiter)

Duplicate Analysis CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BA-LA-140 H-3 FE-55 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 i0,097 +1-10,914+-10,689+1 3.8 3.9 3.4 7.3 2.9 5.0 4.0 294.0 3.4 3.6 4.3 4.3 4.1 4.0 4.7 1.7 4.4 2.5 322.0 152.0 2.9 2.5 4.6 5.1 4.0 2.7 8.3 3.0 3.8 3.4 316.0 4.0 2.5 3.7 3.9 4.3 5.2 6.6 3.5 3.6 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 27 Exposure Pathway -Waterborne Surface Water Location SP Collection Date 15-NOV- 10 15-NOV- 10 20-DEC-10 20-DEC-10 20-DEC-1 0 20-DEC-1 0 20-DEC-10 20-DEC-1 0 20-DEC-1 0 20-DEC-1 0 20-DEC-1 0 20-DEC-10 20-DEC-1 0 Nuclide BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 Gamma Spectrum & H-3 Concentration (pCi/Liter)

< 4.3 13,436 +/- 355.0< 2.6< 2.5< 3.9< 1.2< 2.7< 2.9< 4.5< 2.4< 3.7< 2.2 12,093 +/- 320.0 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 28 Exposure Pathway -Waterborne Ground Water Location B-12 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY- 10 24-MAY- 10 24-MAY- 10 24-MAY-1 0 24-MAY-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-10 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-10 22-NOV-10 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 2.7 4.7 3.4 2.6 8.0 3.3 4.3 4.9 2.2 152.0 0.274 2.6 1.9 3.2 3.0 7.0 3.2 3.9 3.3 1.3 146.0 0.248 3.8 2.2 5.6 2.9 4.2 3.0 3.9 2.6 3.1 181.0 0.232 3.2 7.3 5.1 4.4 11.0 5.5 4.8 6.1 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 29 Exposure Pathway -Waterborne Ground Water Location B-12 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-NOV-1 0 22-NOV-10 22-NOV-10 BA-LA-140 H-3 1-131 (CHEM)< 5.6< 144.0< 0.29 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 30 Exposure Pathway -Waterborne Ground Water Location C-10 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-10 23-AUG-1 0 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-10 23-AUG-10 23-AUG-1 0 22-NOV-10 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA- 140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 2.5 2.3 4.9 3.2 5.1 2.6 2.0 4.0 2.5 152.0 0.193 2.7 2.8 3.7 3.2 5.0 2.5 2.6 3.6 2.2 146.0 0.247 2.7 2.6 6.2 3.6 4.6 4.2 3.4 5.3 4.5 181.0 0.242 4.0 2.6 5.4 3.3 5.9 4.0 4.1 3.2 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 31 Exposure Pathway -Waterborne Ground Water Location C-10 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 BA-LA-140 H-3 1-131 (CHEM)* 2.9< 144.0< 0.449 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 32 Exposure Pathway -Waterborne Ground Water Location C-49 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 24-MAY-10 24-MAY-1 0 24-MAY-1 0 24-MAY- 10 24-MAY- 10 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-10 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-10 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 3.3 3.1 5.3 2.6 2.3 1.9 2.6 3.0 3.1 152.0 0.466 3.9 4.4 3.9 3.8 7.5 2.7 4.5 5.3 3.5 146.0 0.313 3.9 2.7 8.1 3.4 4.3 3.3 3.6 4.4 4.9 181.0 0.287 3.5 4.8 9.1 5.2 8.3 6.8 5.1 4.2 2010 Annual Radiological Environmental Operating Report, Wolf Creek Generating Station Page C- 33 Exposure Pathway -Waterborne Ground Water Location C-49 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-NOV-10 22-NOV-1 0 22-NOV-1 0 BA-LA-140 H-3 1-131 (CHEM)* 6.6< 144.0* 0.458 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 34 Exposure Pathway -Waterborne Ground Water Location F-1 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 24-MAY-1 0 24-MAY-10 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY- 10 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 23-AUG-1 0 23-AUG-10 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 CS-134 CS-134 CS-137 CS-1 37 BA-LA-140 BA-LA-140 H-3 H-3 1-131 (CHEM)1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 3.8 2.7 4.5 1.9 12.8 4.6 5.9 2.3 17.4 5.0 6.7 2.3 6.6 1.9 6.7 3.6 7.1 1.8 152.0 152.0 0.353 0.287 1.6 1.9 4.1 1.8 2.9 2.1 2.4 3.5 2.9 146.0 0.232 1.9 3.5 4.6 3.9 4.7 3.0 2.2 2.5 Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 35 Exposure Pathway -Waterborne Ground Water Location F-I Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 23-AUG-10 23-AUG-1 0 23-AUG-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-10 22-NOV-1 0 22-NOV-1 0 22-NOV-10 22-NOV-10 22-NOV-1 0 22-NOV-1 0 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-137 BA-LA-140 H-3 1-131 (CHEM)2.0 181.0 0.252 2.7 2.6 7.6 3.8 4.6 3.9 2.7 5.4 5.3 144.0 0.263 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 36 Exposure Pathway -Waterborne Ground Water Location G-2 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-10 22-FEB-10 22-FEB-1 0 22-FEB-1 0 24-MAY-1 0 24-MAY-10 24-MAY-10 24-MAY-1 0 24-MAY-10 24-MAY-1 0 24-MAY-1 0 24-MAY- 10 24-MAY-1 0 24-MAY- 10 24-MAY-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-10 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-10 22-NOV-10 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA- 140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 3.4 2.6 4.7 3.9 5.8 4.7 4.2 5.3 2.2 152.0 0.238 4.4 2.2 7.9 2.8 13.3 5.1 4.3 6.4 2.4 146.0 0.207 2.8 1.6 2.9 2.7 5.2 2.6 2.4 4.2 3.3 181.0 0.226 3.1 2.8 2.4 3.6 5.6 3.4 2.8 4.2 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 37 Exposure Pathway -Waterborne Ground Water Location G-2 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 BA-LA-140 H-3 1-131 (CHEM)* 2.8< 144.0< 0.368 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 38 Exposure Pathway -Waterborne Ground Water Location J-1 Collection Date Nuclide Concentration (pCilLiter)

Duplicate Analysis 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-10 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY- 10 24-MAY-1 0 24-MAY- 10 24-MAY- 10 24-MAY- 10 24-MAY- 10 23-AUG-10 23-AUG-10 23-AUG-10 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-10 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-10 22-NOV-10 22-NOV-10 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA- 140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA- 140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 3.2 3.3 6.4 3.5 6.7 4.1 4.1 2.6 4.0 152.0 0.273 3.3 3.4 2.1 2.9 7.1 3.5 3.2 2.6 3.9 146.0 0.218 2.6 3.9 8.9 4.2 10.6 4.1 4.1 4.6 4.0 181.0 0.219 5.6 5.8 8.8 7.3 11.7 5.6 5.5 6.4 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -39 Exposure Pathway -Waterborne Ground Water Location J-1 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 BA-LA-140 H-3 1-131 (CHEM)< 9.3< 144.0< 0.447 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 40 Exposure Pathway -Waterborne Ground Water Location J-2 Collection Date 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-10 24-MAY- 10 24-MAY- 10 24-MAY- 10 24-MAY- 10 24-MAY- 10 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY- 10 24-MAY-1 0 23-AUG-10 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-1 0 23-AUG-10 23-AUG-1 0 23-AUG-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 Nuclide Concentration (pCi/Liter)

Duplicate Analysis MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 2.6 2.0 6.1 2.6 8.6 4.7 3.8 4.5 3.9 152.0 0.228 3.0 2.9 3.9 1.2 4.0 2.4 3.2 2.8 2.7 146.0 0.221 3.3 3.4 3.5 3.5 5.6 4.8 2.8 2.7 3.9 181.0 0.226 2.7 3.0 6.6 3.1 7.5 3.6 3.7 4.1 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 41 Exposure Pathway -Waterborne Ground Water Location J-2 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-NOV-1 0 22-NOV-1 0 22-NOV-10 BA-LA-140 H-3 1-131 (CHEM)* 2.9< 144.0< 0.37 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 42 Exposure Pathway -Waterborne Ground Water Location L-49 Collection Date Nuclide 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-10 22-FEB-10 22-FEB-10 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 22-FEB-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY- 10 24-MAY- 10 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 24-MAY-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-1 0 23-AUG-10 23-AUG-10 23-AUG-10 23-AUG-10 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-1 0 22-NOV-10 22-NOV-10 22-NOV-10 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA- 140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA- 140 H-3 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 Concentration (pCi/Liter)

< 2.1< 1.8< 3.8< 1.2< 2.7< 2.1< 2.6< 3.3< 1.7< 152.0< 0.489< 3.0< 1.8< 5.7< 1.9< 4.2< 3.4< 3.5< 3.7< 2.3< 146.0< 0.215< 2.8< 3.1< 5.5< 2.6< 6.9< 2.9< 2.6< 3.8< 3.8< 181.0< 0.24< 3.8< 1.9< 7.2< 3.2< 4.5< 3.4< 3.0< 4.6 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -43 Exposure Pathway -Waterborne Ground Water Location L-49 Collection Date Nuclide Concentration (pCi/Liter)

Duplicate Analysis 22-NOV-1 0 22-NOV-1 0 22-NOV-10 BA-LA-140 H-3 1-131 (CHEM)* 6.1< 144.0< 0.419 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 44 Exposure Pathway -Waterborne Drinking Water Location BW-15 Collection Date 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 05-APR-1 0 05-APR-1 0 05-APR-1 0 05-APR-10 05-APR-10 05-APR-1 0 05-APR-10 05-APR-10 05-APR-10 05-APR-1 0 05-APR-1 0 03-MAY- 10 03-MAY-1 0 03-MAY-1 0 03-MAY-1 0 03-MAY-1 0 03-MAY-1 0 03-MAY-1 0 Nuclide Concentration (pCilLiter)

Duplicate Analysis MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 1.986+/-1.339+/-3.239 +/-2.6 1.7 3.7 2.4 4.0 2.2 2.5 3.1 2.0 0.625 0.288 4.3 2.4 5.1 1.7 3.9 3.0 3.0 3.0 3.3 0.558 0.316 2.7 2.6 4.5 3.3 4.7 2.8 3.1 2.7 2.5 1.109 0.282 2.3 2.2 4.2 2.3 1.7 3.4 2.7 2010Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -45 Exposure Pathway -Waterborne Drinking Water Location BW-15 Collection Date Nuclide 03-MAY-1 0 03-MAY-1 0 03-MAY-1 0 03-MAY-1 0 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-1 0 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 02-AUG-10 02-AUG-10 02-AUG-1 0 02-AUG-1 0 07-SEP-10 07-SEP-10 07-SEP-10 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA- 140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 Concentration (pCi/Liter)

< 4.5< 2.1 3.954+/- 1.038< 0.236< 3.3< 2.1< 6.9< 3.1< 4.9< 3.2< 3.0< 2.5< 1.5 3.293+/- 1.11< 0.311< 3.2< 2.0< 4.5< 2.4< 3.2< 2.6< 2.4< 4.1< 3.1 2.644+/- 0.492< 0.235< 2.5< 4.1< 4.1 Duplicate Analysis 2.428+/-4.6 2.9 4.0 1.6 4.1 1.8 0.634 0.324 1.8< 1.9< 3.3 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 46 Exposure Pathway -Waterborne Drinking Water Location BW-15 Collection Date Nuclide 07-SEP-10 07-SEP-10 07-SEP-10 07-SEP-1 0 07-SEP-10 07-SEP-10 07-SEP-10 07-SEP-10 06-OCT-1 0 06-OCT-1 0 06-OCT-10 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT- 10 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB GRAB CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 CS-134 CS-134 CS-1 37 CS-1 37 BA-LA- 140 BA-LA-140 GROSS BETA GROSS BETA 1-131 (CHEM)1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA Concentration (pCi/Liter)

< 2.7< 2.5< 2.2< 1.5< 1.6< 1.1 5.078+/- 1.147< 0.279< 2.3< 3.3< 2.9< 2.2< 5.6< 2.7< 3.9< 2.9< 2.8< 4.4< 2.8< 3.2< 3.9< 3.4< 3.6< 2.9< 2.8< 1.4 3.254+/- 0.691 2.902+/- 0.666< 0.32< 0.263< 3.6< 2.6< 5.5< 3.2< 8.8< 2.8< 4.1< 3.9< 2.8 2.811+/- 0.664 Duplicate Analysis 2010Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 47 Exposure Pathway -Waterborne Drinking Water Location BW-1 5 Collection Date 01-NOV-10 06-DEC-10 06-DEC-1 0 06-DEC-1 0 06-DEC-1 0 06-DEC-10 06-DEC-10 06-DEC-1 0 06-DEC-1 0 06-DEC-1 0 06-DEC-10 06-DEC-1 0 03-JAN-1 1 03-JAN-1i1 03-JAN-1i1 03-JAN-1i1 03-JAN-1i1 03-JAN-1i1 03-JAN-1i1 03-JAN-1i1 03-JAN-1i1 03-JAN-i 1 03-JAN-i 1 Nuclide Concentration (pCi/Liter)

Duplicate Analysis 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA 1-131 (CHEM)2.835+/-0.238 4.1 3.0 6.7 4.4 4.3 3.0 4.2 3.8 3.3 0.652 0.168 2.6 2.0< 4.5< 1.4 2.416 +/-2.6 2.4 2.6 3.6 2.5 0.652 0.285 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 48 Exposure Pathway -Waterborne Drinking Water Location IO-DW Collection Date 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-FEB-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR-10 01-MAR- 10 01-MAR- 10 01-MAR-10 01-MAR-10 05-APR-1 0 05-APR-10 05-APR-10 05-APR-1 0 05-APR-1 0 05-APR-1 0 05-APR-1 0 05-APR-1 0 05-APR-1 0 05-APR-10 05-APR-1 0 03-MAY- 10 03-MAY- 10 03-MAY- 10 03-MAY- 10 03-MAY-1 0 03-MAY-1 0 03-MAY-1 0 Nuclide Concentration (pCi/Liter)

Duplicate Analysis MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-1 34 CS-1 37 BA-LA- 140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 2.402+/-1.360+/-3.311 +/-3.0 2.5 4.2 2.9 5.7 4.2 3.4 4.4 2.8 0.688 0.278 3.8 1.4 6.3 2.2 5.3 4.3 4.3 3.8 3.5 0.613 0.203 2.5 2.8 7.9 1.4 4.4 3.1 3.0 3.1 3.9 1.046 0.263 2.7 3.5 3.7 3.1 2.9 3.4 2.6 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 49 Exposure Pathway -Waterborne Drinking Water Location IO-DW Collection Date 03-MAY-1 0 03-MAY- 10 03-MAY-1 0 03-MAY-1 0 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 06-JUL-10 02-AUG-10 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 02-AUG-10 02-AUG-1 0 02-AUG-1 0 02-AUG-1 0 07-SEP-10 07-SEP-1 0 07-SEP-1 0 Nuclide Concentration (pCi/Liter)

Duplicate Analysis CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA- 140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 2.640+/-3.384 +/-2.774+/-2.211 +/-3.6 3.2 1.089 0.389 3.1 3.9 5.0 1.9 7.8 3.8 3.9 3.8 3.8 1.03 0.293 4.2 4.7 7.2 1.1 7.0 4.0 3.3 2.9 5.4 0.519 0.22 3.6 1.8 6.0 4.0 3.5 3.9 3.6 4.1 2.2 0.651 0.343 3.4 1.8 6.3 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 50 Exposure Pathway -Waterborne Drinking Water Location 10-DW Collection Date 07-SEP-10 07-SEP-10 07-SEP-10 07-SEP-10 07-SEP-10 07-SEP-10 07-SEP-1 0 07-SEP-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 06-OCT- 10 06-OCT-1 0 06-OCT-1 0 06-OCT-1 0 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 01-NOV-10 06-DEC- 10 06-DEC-10 06-DEC-1 0 06-DEC-1 0 06-DEC-1 0 06-DEC-1 0 06-DEC-1 0 06-DEC-10 06-DEC-1 0 06-DEC-10 Nuclide CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA Concentration (pCi/Liter)

< 3.2< 2.6< 4.4< 4.1< 2.7< 3.1 3.944+/- 1.002< 0.186< 2.8< 2.7< 1.8< 3.2< 5.6< 2.9< 3.0< 2.0 Duplicate Analysis 2.546 +/-2.594+/-3.392 +/-4.1 0.658 0.369 2.7 2.5 4.1 1.6 3.0 3.0 2.9 2.1 3.2 0.717 0.321 2.0 2.9 3.9 4.2 2.9 3.3 2.9 3.9 2.2 0.737 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 51 Exposure Pathway -Waterborne Drinking Water Location 1O-DW Collection Date 06-DEC-1 0 03-JAN-11 03-JAN-i 1 03-JAN-i 1 03-JAN-11 03-JAN-i 1 03-JAN-i 1 03-JAN-I 1 03-JAN-i 1 03-JAN-1 1 03-JAN-i 1 03-JAN-1 1 Nuclide Concentration (pCilLiter)

Duplicate Analysis 1-131 (CHEM)MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-1 37 BA-LA- 140 GROSS BETA 1-131 (CHEM)2.878+/-0.369 2.4 1.3 4.6 2.2 4.4 3.6 3.5 3.4 1.7 0.716 0.291 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 52 Exposure Pathway -Waterborne Drinking Water Quarterly Tritium Analysis Location BW-15 Collection Date 05-APR-1 0 06-JUL-10 06-JUL-10 06-OCT-1 0 03-JAN-1i1 Nuclide Concentration (pCilLiter)

Duplicate Analysis H-3 H-3 H-3 H-3 H-3< 144< 163< 163< 161< 145 Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 53 Exposure Pathway -Waterborne Drinking Water Quarterly Tritium Analysis Location 10-DW Collection Date 05-APR-1 0 06-JUL-10 06-OCT-1 0 03-JAN-i 1 Nuclide Concentration (pCilLiter)

Duplicate Analysis H-3 H-3 H-3 H-3< 144< 163< 161< 145 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -54 Exposure Pathway -Waterborne Shoreline Sediment Location DC Collection Date 25-MAY-1 0 25-MAY-10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 08-NOV-10 08-NOV-1 0 08-NOV-10 08-NOV-10 08-NOV-10 08-NOV-1 0 08-NOV-1 0 08-NOV-10 Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-1 37 Gamma Spectrum Concentration (pCiIKg Dry)9,012.1 +/- 1,160.0< 53.8< 65.9< 110.9< 55.0< 105.6< 68.2 184.2 +/- 98.8 11,494.0 +/- 703.2< 28.6< 25.8< 53.6< 19.8< 47.1< 20.9< 20.3 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 55 Exposure Pathway -Waterborne Shoreline Sediment Location EEA Collection Date 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 Nuclide Gamma Spectrum Concentration (pCi/Kg Dry)Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 9,892.2 +/-755.6 25.1 16.1 35.1 8.4 35.0 19.9 29.7 101.9 +/-2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 56 Exposure Pathway -Waterborne Shoreline Sediment Location JRR Collection Date 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY- 10 25-MAY- 10 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 08-NOV-10 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-1 37 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-1 37 Gamma Spectrum Concentration (pCi/Kg Dry)9,530.2 +/- 757.3< 25.3< 21.4< 21.4< 10.7< 38.2< 24.7 116.8 +/- 31.3 12,370.0 +/- 729.9* 25.4* 12.6* 55.4* 11.0* 43.9* 13.7* 21.0 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 57 Exposure Pathway -Ingestion Fish Location CCL Collection Date 18-MAY- 10 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY- 10 18-MAY-1 0 18-MAY-1 0 18-MAY-10 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-10 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-10 18-MAY- 10 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-10 18-MAY-1 0 18-MAY-10 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-1 0 18-MAY-10 18-MAY-10 18-MAY- 10 18-MAY-1 0 18-MAY- 10 25-MAY-1 0 25-MAY-1 0 Sample Description COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS SMALLMOUTH BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS CHANNEL CATFISH CHANNEL CATFISH Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 CS-134 CS-137 H-3 K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 1-131 CS-134 CS-134 CS-137 CS-1 37 H-3 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 CS-134 CS-137 H-3 K-40 K-40 Gamma Spectrum & H-3 Concentration (pCilKg Wet)Duplicate Analysis 2,875.3+/-

7,305.0 +1-3,629.7 +1-3,212.4+1-8,184.0 +1-8,358.0 +/-3,181.3+/-

7,474.0 +1-3,267.2 +1-3,170.9 +1-528.2 18.0 18.0 33.7 16.4 41.8 53.0 20.0 18.6 227.0 554.4 3,943.0 20.2 17.0 16.0 6.4 22.1 25.7 15.9 11.0 41.7 23.7 24.0 21.0 9.2 20.0 11.0 224.0 247.0 388.2 12.6 8.9 23.8 11.0 13.7 21.0 5.4 10.4 233.0 361.8 533.3 Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 58 Exposure Pathway -Ingestion Fish Location CCL Collection Date 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY- 10 25-MAY- 10 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY-1 0 25-MAY- 10 25-MAY-1 0 25-MAY- 10 25-MAY- 10 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 Sample Nuclide Description CHANNEL CATFISH MN-54 CHANNEL CATFISH MN-54 CHANNEL CATFISH CO-58 CHANNEL CATFISH CO-58 CHANNEL CATFISH FE-59 CHANNEL CATFISH FE-59 CHANNEL CATFISH CO-60 CHANNEL CATFISH CO-60 CHANNEL CATFISH ZN-65 CHANNEL CATFISH ZN-65 CHANNEL CATFISH I-131 CHANNEL CATFISH CS-1 34 CHANNEL CATFISH CS-1 34 CHANNEL CATFISH CS-1 37 CHANNEL CATFISH CS-1 37 CHANNEL CATFISH H-3 CHANNEL CATFISH H-3 FRESHWATER DRUM K-40 FRESHWATER DRUM MN-54 FRESHWATER DRUM CO-58 FRESHWATER DRUM FE-59 FRESHWATER DRUM CO-60 FRESHWATER DRUM ZN-65 FRESHWATER DRUM 1-131 FRESHWATER DRUM CS-1 34 FRESHWATER DRUM CS-1 37 FRESHWATER DRUM H-3 SMALLMOUTH BUFFALO K-40 SMALLMOUTH BUFFALO MN-54 SMALLMOUTH BUFFALO CO-58 SMALLMOUTH BUFFALO FE-59 SMALLMOUTH BUFFALO CO-60 SMALLMOUTH BUFFALO ZN-65 SMALLMOUTH BUFFALO 1-131 SMALLMOUTH BUFFALO CS-134 SMALLMOUTH BUFFALO CS-137 SMALLMOUTH BUFFALO H-3 BLUE CATFISH K-40 BLUE CATFISH MN-54 BLUE CATFISH CO-58 BLUE CATFISH FE-59 Gamma Spectrum & H-3 Concentration (pCilKg Wet)7,302.0 +1-7,232.0 +1-3,291.0+1-7,552.0 +1-3,547.9 +/-6,096.0 +1-2,856.9+I-14.0 22.1 12.1 18.0 35.0 39.3 11.1 15.4 46.0 37.4 25.0 8.8 18.4 15.1 23.9 230.0 229.0 514.2 18.9 13.7 27.9 17.1 51.0 39.0 18.4 24.3 233.0 542.9 23.3 21.7 42.5 19.3 18.5 54.0 12.4 10.6 199.0 377.4 7.9 11.2 22.5 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 59 Exposure Pathway -Ingestion Fish Location CCL Collection Date 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-10 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 Sample Nuclide Description BLUE CATFISH CO-60 BLUE CATFISH ZN-65 BLUE CATFISH 1-131 BLUE CATFISH CS-1 34 BLUE CATFISH CS-1 37 BLUE CATFISH H-3 CHANNEL CATFISH K-40 CHANNEL CATFISH MN-54 CHANNEL CATFISH CO-58 CHANNEL CATFISH FE-59 CHANNEL CATFISH CO-60 CHANNEL CATFISH ZN-65 CHANNEL CATFISH 1-131 CHANNEL CATFISH CS-134 CHANNEL CATFISH CS-137 CHANNEL CATFISH H-3 COMMON CARP K-40 COMMON CARP MN-54 COMMON CARP CO-58 COMMON CARP FE-59 COMMON CARP CO-60 COMMON CARP ZN-65 COMMON CARP 1-131 COMMON CARP CS-1 34 COMMON CARP CS-1 37 COMMON CARP H-3 FLATHEAD CATFISH K-40 FLATHEAD CATFISH MN-54 FLATHEAD CATFISH CO-58 FLATHEAD CATFISH FE-59 FLATHEAD CATFISH CO-60 FLATHEAD CATFISH ZN-65 FLATHEAD CATFISH 1-131 FLATHEAD CATFISH CS-134 FLATHEAD CATFISH CS-137 FLATHEAD CATFISH H-3 SMALLMOUTH BUFFALO K-40 SMALLMOUTH BUFFALO K-40 SMALLMOUTH BUFFALO MN-54 SMALLMOUTH BUFFALO MN-54 SMALLMOUTH BUFFALO CO-58 Gamma Spectrum & H-3 Concentration (pCilKg Wet)Duplicate Analysis 8,174.0 +/-3,182.6 +/-8,051.0 +/-2,867.3 +/-7,335.0 +/-3,732.7 +1-7,827.0 +1-2,556.6 +/-2,807.1 +1-11.9 19.9 31.0 10.6 8.6 249.0 394.9 8.6 14.1 33.9 10.6 18.9 53.0 10.2 7.3 250.0 358.8 13.3 9.4 27.3 10.8 22.9 40.0 12.3 13.2 239.0 452.6 12.2 14.3 22.1 12.7 13.5 43.0 12.5 9.1 242.0 530.3 399.6 15.5 8.1 21.4 Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 60 Exposure Pathway -Ingestion Fish Location CCL Collection Date 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-10 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 Sample Description SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO WALLEYE WALLEYE WALLEYE WALLEYE WALLEYE WALLEYE WALLEYE WALLEYE WALLEYE WALLEYE WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE luclide Gamma Spectrum & H-3 Concentration (pCi/Kg Wet)CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 1-131 CS-1 34 CS-134 CS-1 37 CS-1 37 H-3 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 CS-1 34 CS-1 37 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 CS-134 CS-1 37 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 7,491.0+/-

7,644.0 +1-3,590.6 +1-7,574.0 +1-3,442.4 +/-6,586.0 +/-2,923.9 +/-12.7 35.0 25.2 23.2 11.5 32.6 15.0 45.0 21.5 9.4 19.0 9.3 231.0 233.0 388.5 11.9 8.7 19.7 12.1 9.1 32.0 14.1 12.9 240.0 434.4 14.7 9.6 28.4 13.7 13.9 53.0 5.9 9.8 222.0 405.9 6.9 10.6 26.5 11.2 16.9 33.0 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -61 Exposure Pathway -Ingestion Fish Location CCL Collection Date 19-OCT-1 0 19-OCT-10 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-10 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 19-OCT-1 0 Sample Description WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WIPER WIPER WIPER WIPER WIPER WIPER WIPER WIPER WIPER WIPER Nuclide CS-134 CS-1 37 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 CS-134 CS-137 H-3 Gamma Spectrum & H-3 Concentration (pCi/Kg Wet)Duplicate Analysis 6,962.0 +/-3,354.6 +/-8,046.0 +/-9.1 10.5 233.0 407.0 14.7 12.0 21.5 11.6 9.0 43.0 6.0 15.0 246.0* 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 62 Exposure Pathway -Ingestion Fish Location JRR Collection Date 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY- 10 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 08-NOV-1 0 Sample Description Nuclide Gamma Spectrum & H-3 Concentration (pCi/Kg Wet)Duplicate Analysis CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH LARGEMOUTH LARGEMOUTH LARGEMOUTH LARGEMOUTH LARGEMOUTH LARGEMOUTH LARGEMOUTH LARGEMOUTH LARGEMOUTH LARGEMOUTH BASS BASS BASS BASS BASS BASS BASS BASS BASS BASS SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO SMALLMOUTH BUFFALO WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE WHITE CRAPPIE CHANNEL CATFISH K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 CS-134 CS-1 37 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 CS-134 CS-1 37 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 CS-134 CS-1 37 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 1-131 CS-134 CS-137 H-3 K-40 3,665.6 +/-3,314.0 +/-3,161.9+/-

2,673.9 +/-3,725.9 +/-415.3 13.5 8.6 23.6 10.0 29.6 40.0 17.1 15.5 119.0 610.6 24.1 20.0 37.7 25.2 47.2 63.0 17.9 18.7 132.0 506.4 21.4 23.0 29.0 15.1 50.0 72.0 10.2 18.2 116.0 438.9 16.0 10.0 22.6 17.8 45.0 34.0 16.8 16.9 123.0 519.4 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 63 Exposure Pathway -Ingestion Fish Location JRR Collection Date 08-NOV-10 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV- 10 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 Sample Nuclide Description CHANNEL CATFISH MN-54 CHANNEL CATFISH CO-58 CHANNEL CATFISH FE-59 CHANNEL CATFISH CO-60 CHANNEL CATFISH ZN-65 CHANNEL CATFISH 1-131 CHANNEL CATFISH CS-134 CHANNEL CATFISH CS-137 CHANNEL CATFISH H-3 COMMON CARP K-40 COMMON CARP MN-54 COMMON CARP CO-58 COMMON CARP FE-59 COMMON CARP CO-60 COMMON CARP ZN-65 COMMON CARP 1-131 COMMON CARP CS-1 34 COMMON CARP CS-1 37 COMMON CARP H-3 SMALLMOUTH BUFFALO K-40 SMALLMOUTH BUFFALO MN-54 SMALLMOUTH BUFFALO CO-58 SMALLMOUTH BUFFALO FE-59 SMALLMOUTH BUFFALO CO-60 SMALLMOUTH BUFFALO ZN-65 SMALLMOUTH BUFFALO 1-131 SMALLMOUTH BUFFALO CS-134 SMALLMOUTH BUFFALO CS-137 SMALLMOUTH BUFFALO H-3 Gamma Spectrum & H-3 Concentration (pCi/Kg Wet)Duplicate Analysis 3,358.6 +/-3,058.0 +/-9.5 20.6 47.7 16.5 15.9 107.0 14.3 18.7 108.0 429.4 11.6 15.0 24.4 16.9 30.3 69.0 12.0 15.6 109.0 427.2 15.2 15.8 31.7 15.5 29.3 109.0 7.6 13.6 100.0 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -64 Exposure Pathway -Ingestion FoodlGarden Location D-2 Collection Date 26-APR-1 0 26-APR-10 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-10 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-10 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-10 1 7-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 Sample Description HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES Nuclide BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-1 34 CS-1 37 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 k1-31 CS-1 34 CS-1 37 BE-7 BE-7 K-40 K-40 MN-54 MN-54 CO-58 CO-58 Gamma Spectrum Concentration (pCi/Kg Wet)473.9 3,636.3 403.8 4,403.3 904.2 5,818.3 1,164.5 1,293.1 6,254.7 7,283.7+/- 166.9+/- 338.9< 11.9< 6.5< 28.0< 10.8< 9.4< 6.7< 12.2< 6.0< 10.1+/- 147.0+/- 436.8< 12.9< 10.4< 37.7< 7.3< 20.0< 15.1< 16.5< 9.7< 11.5+/- 167.5+/- 427.9< 14.2< 10.1< 20.0< 13.5< 25.8< 8.9< 25.2< 12.2< 14.1+/- 203.4+/- 218.5+/- 521.9+/- 565.4* 17.7* 17.9* 16.1* 10.3 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 65 Exposure Pathway -Ingestion Food/Garden Location D-2 Collection Date 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-1 0 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 30-AUG-1 0 30-AUG-1 0 30-AUG-10 30-AUG-10 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-1 0 27-SEP-1 0 27-SEP-10 27-SEP-1 0 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 Sample Description Nuclide Gamma Spectrum Concentration (pCi/Kg Wet)HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 1-131 CS-134 CS-134 CS-137 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 520.6 7,603.9 375.8 5,112.1+1-+1-+1-+1-34.0 34.3 16.7 14.2 50.1 28.8 22.1 13.2 39.8 16.1 13.4 15.4 14.2 16.1 182.8 541.1 13.8 16.2 23.7 15.1 16.1 15.0 24.3 13.7 13.9 175.6 540.8 20.3 18.7 28.8 11.9 22.9 14.9 29.2 19.4 18.3 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 66 Exposure Pathway -Ingestion Food/Garden Location H-2 Collection Date 26-APR-1 0 26-APR-10 26-APR-10 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-10 26-APR-10 26-APR-1 0 26-APR-1 0 17-MAY-10 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-10 17-MAY-1 0 17-MAY-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 Sample Description Nuclide Gamma Spectrum Concentration (pCilKg Wet)Duplicate Analysis HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 917.3 4,411.7 808.1 3,327.3 559.8 5,920.9+1-+1-+1-+1-+1-+1-201.2 516.9 17.3 19.6 20.9 13.6 42.3 16.8 16.2 15.5 23.0 228.6 434.4 18.1 10.9 24.5 13.1 13.8 13.1 14.7 16.4 12.8 196.6 637.2 20.8 15.5 44.5 17.4 43.0 19.7 34.3 23.3 25.1 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 67 Exposure Pathway -Ingestion Food/Garden Location N-1 Collection Date 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-10 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-1 0 26-APR-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-1 0 17-MAY-10 17-MAY-10 17-MAY-1 0 17-MAY-1 0 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-1 0 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 Sample Description Nuclide Gamma Spectrum Concentration (pCiIKg Wet)Duplicate Analysis HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-1 34 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 532.8 3,307.7 459.8 2,716.9 468.6 4,087.6 595.1 4,414.0+1-+1-+1-+1-+1-+1-+1-+1-172.4 385.3 9.8 9.2 23.2 11.7 35.6 17.7 23.3 15.3 17.4 116.4 330.2 12.2 8.1 18.8 9.2 20.5 13.9 12.8 11.5 14.6 137.2 378.3 11.0 8.2 22.4 9.6 25.7 8.1 29.1 11.8 14.6 185.1 491.6 12.6 16.7 22.1 17.9 37.3 17.5 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 68 Exposure Pathway -Ingestion Food/Garden Location N-1 Collection Date 19-JUL-10 19-JUL-1 0 19-JUL-10 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-10 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 30-AUG-1 0 27-SEP-1 0 27-SEP-10 27-SEP-1 0 27-SEP-1 0 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-10 27-SEP-1 0 27-SEP-1 0 Sample Description HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES Nuclide 1-131 CS-134 CS-1 37 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 Gamma Spectrum Concentration (pCi/Kg Wet)Duplicate Analysis 658.7 +/-3,658.3 +/-417.9+1 5,179.6+-31.6 15.7 17.9 152.2 372.6 10.8 13.1 21.7 12.0 26.6 12.4 27.4 10.1 14.0 154.7 504.0 16.9 20.7 26.1 10.7 35.3 17.6 23.5 15.0 16.7 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 69 Exposure Pathway -Ingestion Food/Garden Location Q-6 Collection Date 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 21-JUN-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 19-JUL-10 Sample Description Nuclide Gamma Spectrum Concentration (pCi/Kg Wet)HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES BE-7 BE-7 K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 1-131 CS-1 34 CS-1 34 CS-1 37 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 1,852.6 +1-1,856.4 +/-6,095.1 +/-6,096.7 +/-1,666.5+1 4,921.4 +/-272.1 246.8 571.7 516.3 24.5 11.0 19.6 13.6 34.2 24.0 17.6 13.3 31.6 36.9 25.0 19.6 35.5 18.2 19.6 12.4 16.7 14.2 283.6 568.8 21.1 23.2 46.6 15.3 40.4 21.1 51.4 21.2 21.4 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -70 Exposure Pathway -Ingestion Feed and Forage Location NR-D1 Collection Date 29-SEP-10 29-SEP-10 29-SEP-10 29-SEP-1 0 29-SEP-1 0 29-SEP-10 29-SEP-10 29-SEP-10 29-SEP-10 29-SEP-1 0 29-SEP-10 Sample Description Nuclide IRRIGATED CORN IRRIGATED CORN IRRIGATED CORN IRRIGATED CORN IRRIGATED CORN IRRIGATED CORN IRRIGATED CORN IRRIGATED CORN IRRIGATED CORN IRRIGATED CORN IRRIGATED CORN BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-1 34 CS-137 Gamma Spectrum Concentration (pCilKg Wet)< 34.3 2,670.5 +/- 225.4< -5.1< 7.4< 12.9< 4.6< 15.4< 8.8< 8.2< 7.3< 8.3 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 71 Exposure Pathway -Ingestion Feed and Forage Location NR-D2 Collection Date 23-SEP-10.23-SEP-1 0 23-SEP-1 0 23-SEP-1 0 23-SEP-1 0 23-SEP-10 23-SEP-10 23-SEP-10 23-SEP-1 0 23-SEP-1 0 23-SEP-10 Sample Description Nuclide IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED CORN CORN CORN CORN CORN CORN CORN CORN CORN CORN CORN BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 Gamma Spectrum Concentration (pCi/Kg Wet)< 41.7 2,871.0+/-

238.5< 7.3< 6.9< 13.1< 6.4< 7.1< 7.2< 6.8< 5.0< 7.0 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 72 Exposure Pathway -Ingestion Feed and Forage Location NR-U1 Collection Date 13-OCT-1 0 13-OCT-1 0 13-OCT-10 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 13-OCT-10 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 13-OCT-10 13-OCT-10 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 13-OCT-1 0 Sample Description Nuclide IRRIGATED SOYBEANS IRRIGATED SOYBEANS IRRIGATED SOYBEANS IRRIGATED SOYBEANS IRRIGATED SOYBEANS IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-1 34 CS-1 37 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 Gamma Spectrum Concentration (pCi/Kg Wet)< 78.7 14,278.0 +/- 568.5< 9.3< 10.9< 23.6< 7.7< 22.3< 7.1< 15.0< 12.7< 10.9 Duplicate Analysis NON-IRRIGATED CORN NON-IRRIGATED CORN NON-IRRIGATED CORN NON-IRRIGATED CORN NON-IRRIGATED CORN NON-IRRIGATED CORN NON-IRRIGATED CORN NON-IRRIGATED CORN NON-IRRIGATED CORN NON-IRRIGATED CORN NON-IRRIGATED CORN 2,832.7 +/-61.4 248.1 4.8 8.4 12.2 7.2 12.7 8.3 16.2 6.9 5.3 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 73 Exposure Pathway -Aquatic Bottom Sediment Location DC Collection Date 25-MAY-1 0 25-MAY-1 0 25-MAY- 10 25-MAY- 10 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-10 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-10 08-NOV-1 0 08-NOV-10 Nuclide Gamma Spectrum Concentration (pCi/Kg Dry)Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-1 34 CS-1 37 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-1 37 FE-55 11,563.0 10,003.0+/- 1,307.0< 65.5< 74.1< 135.6< 71.8< 102.2< 63.8< 78.5+/- 1,264.0< 55.2< 51.7< 70.0< 59.3< 88.4< 50.0+/- 55.7< 6,444.0 110.9 2010 Annual' Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 74 Exposure Pathway -Aquatic Bottom Sediment Location JRR Collection Date 25-MAY- 10 25-MAY- 10 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-1 0 25-MAY-10 08-NOV-10 08-NOV-10 08-NOV-1 0 08-NOV-1 0 08-NOV-1 0 08-NOV-10 08-NOV-10 08-NOV-10 08-NOV-10 Nuclide Gamma Spectrum Concentration (pCi/Kg Dry)Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-1 37 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 FE-55 5,347.6 13,040.0+/- 550.9< 25.0< 12.7< 49.6< 15.9< 40.4< 19.5< 25.1+/- 1,501.0< 82.9< 62.5< 121.5< 39.8< 96.6< 50.0+/- 58.1< 6,428.0 111.7 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 75 Exposure Pathway -Aquatic Bottom Sediment Location MUDS Collection Date 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-1 37 Gamma Spectrum Concentration (pCi/Kg Dry)9,695.8 +/- 625.8< 23.8< 14.8< 18.4< 20.4< 32.3< 13.7< 22.3 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 76 Exposure Pathway -Aquatic Bottom Sediment Location UHS #1 Collection Date 10-AUG-10 10-AUG- 10 10-AUG- 10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG- 10 Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-1 37 Gamma Spectrum Concentration (pCiIKg Dry)11,699.0 +/- 672.7< 26.9< 18.1< 22.9< 23.0< 47.6< 19.5 54.1 +/- 29.1 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 77 Exposure Pathway -Aquatic Bottom Sediment Location UHS #2 Collection Date 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-1 0 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 Nuclide Gamma Spectrum Concentration (pCi/Kg Dry)Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-1 34 CS-137 10,870.0+1- 678.1< 23.2< 23.6< 51.5< 24.7< 39.8< 18.3+/- 19.4 39.8 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -78 Exposure Pathway -Aquatic Bottom Sediment Location UHS #3 Collection Date 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG- 10 10-AUG-10 10-AUG- 10 Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-1 34 CS-137 Gamma Spectrum Concentration (pCi/Kg Dry)13,268.0 +/- 724.0< 26.1< 24.6< 28.5< 31.7< 44.8< 23.7 73.4 +/- 26.7 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -79 Exposure Pathway -Aquatic Bottom Sediment Location UHS #4 Collection Date 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG- 10 10-AUG-10 10-AUG- 10 10-AUG- 10 10-AUG- 10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 Nuclide K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 CS-134 CS-134 CS-137 CS-1 37 Gamma Spectrum Concentration (pCi/Kg Dry)12,091.0 13,708.0+/- 1,110.0+/- 794.8< 41.7< 27.5< 36.5< 18.6< 74.0< 46.3< 40.8< 19.7< 105.3< 49.8< 32.4< 9.6+/- 51.9+/- 33.5 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 94.3 78.8 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 80 Exposure Pathway -Aquatic Bottom Sediment Location UHS #5 Collection Date 10-AUG-10 10-AUG- 10 10-AUG-1 0 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-1 34 CS-1 37 Gamma Spectrum Concentration (pCi/Kg Dry)11,852.0 +/- 663.4< 28.1< 22.6< 26.7< 17.8< 52.8< 17.4 54.6 +/- 28.0 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -81 Exposure Pathway -Aquatic Bottom Sediment Location UHS #6 Collection Date 10-AUG-10 10-AUG-10 10-AUG- 10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 Nuclide Gamma Spectrum Concentration (pCi/Kg Dry)Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-1 34 CS-1 37 12,270.0 +/-696.4 26.4 23.8 26.9 23.2 36.5 18.2 22.3 48.1 +/-2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 82 Exposure Pathway -Aquatic Vegetation Location DC-ALT Collection Date Sample Description Nuclide Gamma Spectrum Concentration (pCi/Kg Wet)Duplicate Sample 25-AUG-1 0 25-AUG-1 0 25-AUG-1 0 25-AUG-1 0 25-AUG-10 25-AUG-10 25-AUG-10 25-AUG-10 25-AUG-10 25-AUG-1 0 25-AUG-10 AMERICAN LOTUS AMERICAN LOTUS AMERICAN LOTUS AMERICAN LOTUS AMERICAN LOTUS AMERICAN LOTUS AMERICAN LOTUS AMERICAN LOTUS AMERICAN LOTUS AMERICAN LOTUS AMERICAN LOTUS BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-1 37 691.1 2,448.8+/- 196.3+/- 291.3< 11.6< 13.4< 16.0< 11.1* 16.6* 13.4* 22.2< 13.6< 17.3 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 83.

Exposure Pathway -Aquatic Vegetation Location EEA Collection Date Sample Description Nuclide Gamma Spectrum Concentration (pCi/Kg Wet)Duplicate Sample 10-AUG-10 10-AUG- 10 10-AUG-10 10-AUG- 10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG- 10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG- 10 10-AUG- 10 10-AUG- 10 10-AUG- 10 10-AUG- 10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG-10 WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE WATER PRIMROSE BE-7 BE-7 K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 1-131 CS-1 34 CS-1 34 CS-1 37 CS-1 37 382.6 430.6 2,651.6 2,666.6+1-+1-+1-+1-154.0 Duplicate 165.1 286.9 Duplicate 381.9 11.8 Duplicate 16.3 9.6 Duplicate 11.0 18.3 Duplicate 30.2 8.6 Duplicate 23.0 21.3 Duplicate 38.3 10.0 Duplicate 15.3 20.9 Duplicate 20.0 12.7 Duplicate 7.3 14.6 Duplicate 20.0 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 84 Exposure Pathway -Terrestrial Soil Location EEA Collection Date 10-AUG-1 0 10-AUG-10 10-AUG-10 10-AUG-10 10-AUG- 10 10-AUG-10 10-AUG-10 10-AUG-10 Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-1 34 CS-1 37 Gamma Spectrum Concentration (pCi/Kg Dry)9,437.1 +/- 612.2< 25.0< 19.6< 30.1< 6.4< 41.6< 15.3 336.1 +/- 37.8 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report-Wolf Creek Generating Station Page C- 85 Exposure Pathway -Terrestrial Soil Location MUDS Collection Date 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 02-JUN-10 Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-1 34 CS-1 37 Gamma Spectrum Concentration (pCi/Kg Dry)8,791.4 +/- 1,143.0< 40.5< 53.8< 51.7< 36.9< 92.6< 50.6< 60.8 Duplicate Analysis 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 86 Exposure Pathway -Ingestion Meat Location CCL Collection Date 28-JAN-1 0 28-JAN-1 0 28-JAN-10 28-JAN-10 28-JAN-10 28-JAN-10 28-JAN-10 28-JAN-10 28-JAN-10 Sample Description ALLIGATOR ALLIGATOR ALLIGATOR ALLIGATOR ALLIGATOR ALLIGATOR ALLIGATOR ALLIGATOR ALLIGATOR Nuclide K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-1 34 CS-1 37 H-3 Gamma Spectrum & H-3 Concentration (pCi/Kg Wet)Duplicate Analysis 1,899.2+/-

7,737.0 +/-293.1 9.3 9.8 20.6 13.8 22.2 10.6 16.7 219.0 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 87 Exposure Pathway -Ingestion Meat Location R2.5 Collection Date 10-DEC-1 0 10-DEC-1 0 10-DEC-1 0 10-DEC-1 0 10-DEC-1 0 10-DEC-1 0 10-DEC-1 0 10-DEC-10 10-DEC-10 Sample Description Nuclide Gamma Spectrum & H-3 Concentration (pCi/Kg Wet)Duplicate Analysis DEER DEER DEER DEER DEER DEER DEER DEER DEER K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-1 34 CS-1 37 H-3 2,793.3 +/-626.0 +/-347.8 12.7 8.5 17.0 14.5 22.0 11.7 12.6 92.0 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C- 88 WOLF CREEK GENERATING STATION 2010 LAND USE CENSUS REPORT Revision 1 F, Prepared by: Teresa L. Rice Peer Review: Ralph L. Logsdon 12-16-2010 Date 12-16-2010 Date 12-16-2010 Date Approved by: Robert A. Hammond 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D -1 EXECUTIVE

SUMMARY

The 2010 Land Use Census Report has been revised to incorporate the re-calculated D/Qs for the broadleaf vegetation locations using the data from Engineering Evaluation SA-10-004.

The annual Land Use Census of rural residents within five miles of the Wolf Creek Generating Station (WCGS) has been completed for 2010 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.

No program changes are necessary regarding the broadleaf vegetation sample locations.

The broadleaf vegetation locations that had the highest calculated annual average D/Q rankings are Q2.35-MILA1619, N2.38-RODR9, and L2.39-NARD1309, respectively.

Samples are currently being obtained from locations Q2.35-MILA1619 and N2.38-RODR9.

BACKGROUND Section 5.2, Attachment A, of the ODCM 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" and"the results of the Land Use Census shall be included in the Annual Radiological Environmental Operating Report." Table 5-1, Attachment A, of the ODCM (AP 07B-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 the ODCM (AP 07B-004) also requires that milk samples be collected from "three indicator locations within 5 miles of the site having the highest dose potential." METHODOLOGY Two hundred fourteen 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, Burlington, and a trailer park north of 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 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 4.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D -2 RESULTS NOTE: A Global Positioning System was used to verify residence distances and sectors.Three changes were noted for the nearest occupied residences in each sector. Those changes were in sectors E, F, and R.Five location changes were noted for the nearest garden producing broadleaf vegetation.

These changes are identified in Table 3.There were no changes regarding milk sample locations.

Again, no locations were identified that routinely milked animals for human consumption.

2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D -3 TABLE 1 2010 Land Use Census Data Location of Nearest: Sector A B C D E F G H J K L M N P Q R Residence A2.60-17TE1 520 B3.53-QURD1755 C1.92-16RD1655 D2.03-QULA1 571 El.77-QULA1485 F2.28-14RD 1785 G3.03-13RD1820 H3.09-12RD1711 J3.70-1 1 RD1 540 K2.70-12LA1439 L2.10-NARD1339 M2.34-14RD1330 N1.71 -NARD 1441 P2.76-HW751534 Q2.35-MILA1619 R4.43-NARD1891 Milkinq Animals None None None None None None None None None None None None None None None None Broadleaf Garden None None C4.89-18RD1859 D3.00-16RD1829 None F2.44-RERD1391 G3.77-12RD1831 H3.30-QURD1 175 J3.90-1 1RD1 531 None L2.39-NARD1309 M3.10-13LA1 290 N2.38-RODR9 P2.76-HW751534 02.35-MILA1619 None Identifiers are based upon the following protocol: EXAMPLE: A1.4-16RD1525"A" = Sector A"1.4" = 1.4 miles from the reactor"16RD1525" = address 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D -4 TABLE 2 SECTOR 2009 NEAREST 2010 NEAREST RESIDENCE RESIDENCE A A2.60-17TE1 520 A2.60-17TE1520 B B3.53-QURD1755 B3.53-QURD1755 C C1.92-16RD1655 C1.92-16RD1655 D D2.03-QULA1571 D2.03-QULA1571 E E1.78-QULA1451 E1.77-QULA1485 F F2.39-14RD1802 F2.28-14RD1785 G G3.03-13RD 1820 G3.03-13RD 1820 H H3.09-12RD1711 H3.09-12RD1711 J J3.70-11RD1540 J3.70-11RD1540 K K2.70-12LA1439 K2.70-12LA1439 L L2.10-NARD1339 L2.10-NARD1339 M M2.34-14RD1330 M2.34-14RD1330 N N 1.71 -NARD1441 N 1.71 -NARD1441 P P2.76-HW751534 P2.76-HW751534 Q Q2.35-MILA1619 Q2.35-MILA1619 R R2.08-NALN1650 R4.43-NARD1891 NOTE: Entries underlined indicate changes from the 2009 Land Use Census.Locations are identified based upon the following protocol: EXAMPLE: A1.4-16RD1525 First letter is based upon sector, thus "A" designates this residence is in sector A.The number immediately following the first letter designates the distance (in miles) from the reactor.The characters following the dash represent a unique identifier based upon location address.The example is in sector A, 1.4 miles from the reactor, at 1525 16th Road.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D -5 TABLE 3 2010 Land Use Census Milk and Garden Data SECTOR 2009 2010 2009 CLOSEST 2010 CLOSEST MILKING MILKING GARDEN GARDEN ANIMALS ANIMALS PRODUCING PRODUCING BROADLEAF BROADLEAF VEGETATION VEGETATION A None None A4.91-OXRD1940 None B None None None None C None None C3.58-RERD1675 C4.89-18RD1859 D None None D3.00-16RD1829 D3.00-16RD1829 E None None E4.40-TRRD1551 None F None None F2.39-14RD1802 F2.44-RERD1391 G None None G3.77-12RD1831 G3.77-12RD1831 H None None H3.30-QURD1175 H3.30-QURD1175 J None None J3.90-11RD1531 J3.90-11RD1531 K None None None None L None None L2.39-NARD1309 L2.39-NARD1309 M None None M2.34-14RD1330 M3.10-13LA1290 N None None N2.38-RODR9 N2.38-RODR9 P None None P2.76-HW751534 P2.76-HW751534 Q None None Q2.35-MILA1619 Q2.35-MILA1619 R None None None None NOTE: Underlined entries indicate changes from the 2009 Land Use Census.Locations are identified based upon the following protocol: EXAMPLE: A1.4-16RD1525 First letter is based upon sector, thus "A" designates this residence is in sector A.The number immediately following the first letter designates the distance (in miles) from the reactor.The characters following the dash represent a unique identifier based upon location address.The example is in sector A, 1.4 miles from the reactor, at 1525 16th Road.2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D -6 TABLE 4 Information Used for D/Q Calculations FROM LAND FROM USE CENSUS SA-10-004 Eval.DIST CALC NEAR NEAR FAR FAR SECTOR SECTOR (MI) (METERS) DIST D / 0 DIST D/0 CALC RANKING A B C 4.89 7870 7000 1.66E-10 8000 1.34E-10 1.38E-10 11 D 3.00 4828 4000 2.67E-10 5000 1.82E-10 1.97E-10 1 E F 2.44 3927 3000 7.22E-10 4000 4.33E-10 4.54E-10 6 G 3.77 6067 6000 3.57E-10 7000 2.65E-10 3.51E-10 9 H 3.30 5311 5000 7.01E-10 6000 5.16E-10 6.43E-10 4 J 3.90 6276 6000 4.33E-10 7000 3.22E-10 4.02E-10 7 K L 2.39 3846 3000 1.04E-09 4000 6.24E-10 6.88E-10 3 M 3.10 4989 4000 5.73E-10 5000 3.90E-10 3.92E-10 8 N 2.38 3830 3000 1.25E-09 4000 7.51E-10 8.36E-10 2 P 2.76 4442 4000 6.88E-10 5000 4.68E-10 5.91E-10 5 Q 2.35 3782 3000 1.53E-09 4000 9.17E-10 1.05E-09 1 R I I I Originated by: Verified by: jwýDate: Date: 12-16-2010 12-16-2010 2010 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D -7