ML061230110

Annual Radiological Environmental Operating Report

ML061230110
Person / Time
Site:	Wolf Creek
Issue date:	04/27/2006
From:	Moles K Wolf Creek
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
RA 06-0066
Download: ML061230110 (145)

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W0LF CREEK NUCLEAR OPERATING CORPORATION Kevin J. Moles Manager Regulatory Affairs April 27, 2006 RA 06-0066 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Docket No. 50-482: 2005 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, 2005, through December 31, 2005.

No commitments are identified in this correspondence. If you have any questions concerning this matter, please contact me at (620) 364-4126, or Ms. Diane Hooper at (620) 364-4041.

KJM/rlt

Enclosure:

2005 Annual Radiological Environmental Operating Report cc: J. N. Donohew (NRC), w/e W. B. Jones (NRC), w/e B. S. Mallett (NRC), wle Senior Resident Inspector (NRC), w/e 1 2.5 P.O. Box 411 / Burlington. KS 66839/ Phone: (620) 364-8831 An Equal Opporturity Employer MWF/HCIVET

WOLF CREEK NUCLEAR OPERATING CORPORATION WOLF CREEK GENERATING STATION 2005 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT I

I7 April 15, 2006

TABLE OF CONTENTS List of Tables ii List of Figures ii List of Charts ii Executive Summary 1 Introduction I I. Program Description 1 II. Discussion of Results 4 III. Program Revisions/Changes 9 IV. Program Deviations 9 V. Interlaboratory Comparison Program Results 10 VI. Comparison to the Radioactive Effluents Release Program 10 Tables 11 Figures 19 Charts 24 Appendix A - Interlaboratory Comparison Program Results A-1 Appendix B - Summary Tables B-1 Appendix C - 2005 Individual Sample Results C-1 Air Particulate and Charcoal Filters C-1 Quarterly Air Particulate - Gamma C-13 Surface Water C-19 Ground Water C-27 Drinking Water C-40 Quarterly Drinking Water - Tritium C-52 Shoreline Sediment C-55 Fish C-57 Food/Garden C-62 Feed and Forage C-71 Bottom Sediment C-74 Aquatic Vegetation C-78 Terrestrial Vegetation C-80 Soil C-81 Appendix D - 2005 Land Use Census Report D-1 i

LIST OF TABLES 1 Radiological Environmental Monitoring Program Description 11 2 Sample Location Identifiers, Distances (Miles) and Directions (Sectors) 16 3 TLD Results 18 LIST OF FIGURES I Airborne Pathway Sampling Locations 19 2 Direct Radiation Pathway Sampling Locations 20 3 Waterbome Pathway Sampling Locations 21 4 Ingestion Pathway Sampling Locations 22 5 Distant Sampling Locations 23 LIST OF CHARTS 1 Airborne Gross Beta Weekly Results 24 2 Historical Airborne Smoothed Indicator and Control Gross Beta 25 3 TLD Nearsite Locations and Control Locations 26 4 Coffey County Lake Surface Water Tritium Data 27 5 Drinking Water Gross Beta (5 years) 28 6 Detected Co-60 Activity in Coffey County Lake Discharge Cove Bottom Sediment 29 7 Detected Cs-137 Activity in Bottom Sediment 30 ii

EXECUTIVE

SUMMARY

Plant-related activation, corrosion or fission products were not detected during 2005 in airborne particulate and radioiodine filters, ground water, drinking water, shoreline sediment, broadleaf vegetation, crops, terrestrial vegetation, aquatic vegetation, or soil samples. Activation, corrosion or fission products attributable to plant operation were detected during 2005 in surface water, fish, and bottom sediment samples.

Nuclides detected in REMP samples were below applicable NRC reporting levels, and program lower limits of detection were met.

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

INTRODUCTION The 2005 Annual Radiological Environmental Operating Report for Wolf Creek Generating Station (WCGS) covers the period from January 1 through December 31, 2005. 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 Radiological Environmental Monitoring Program -(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), results of sample analyses, a discussion of monitoring program results, a description of revisions to and deviations from the program, and the results of Interlaboratory Comparison Programs. Individual sample results and a summary of results in the Nuclear Regulatory Commission (NRC) Branch Technical Position specified format are included as appendices.

1. PROGRAM DESCRIPTION Radiological environmental samples were collected according to the schedule in WCGS procedure AP 07B-004, Offsite Dose Calculation Manual (Radiological Environmental Monitoring Program). Environmental samples were collected by the WCGS Environmental Management group and were analyzed by Environmental, Inc. Detroit Edison processed environmental thermoluminescent dosimeters (TLDs) at the Enrico Fermi 2 plant. Table 1 lists sampling pathways and frequencies of sampling and 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.

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A. Airborne Pathway Low volume air sampling pumps 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 analysis. The volume of air sampled was calculated from the average of initial and final flow rates and the total time of collection. Each pump was equipped with a time totalizer that was checked weekly against the elapsed time to identify electrical power outages.

Gross beta analysis of the air particulate samples was 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 in groups of five 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 at Harris (location 48). Supplemental indicator location (location 18) was also sampled during the year. Distances and directions to sampling locations from the plant are listed in Table 2, indicator locations are shown in Figure 1, and the control location is shown in Figure 5.

B. Direct Radiation Pathway Panasonic UD-814-AQ TLDs were used at 47 locations during the sample year. The TLDs consist of one lithium-borate element and three calcium sulfate elements in a plastic case.

TLDs were typically positioned roughly 3 to 4 feet above the ground in plastic thermostat boxes.

The thermostat boxes protect the TLDs from the elements and tampering. Two TLDs were placed at each designated location. The TLDs were changed out quarterly. Indicator TLD sample locations are illustrated in Figure 2 and control locations are shown in Figure 5. Table 2 provides the distance and direction of each location from the plant. Control locations were 39 (Beto Junction) and 48 (Harris).

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. Water sampling locations are listed in Table 2 and 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, formally known as Wolf Creek Lake, as an indicator location.

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Quarterly grab samples of ground water were collected from four wells. Location B-12 is hydrologically up gradient from the site and was used as a control location. Three locations (C-10, C-49, and J-1) 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 Neosho Falls (indicator location NF-DW). The Burlington facility is located upstream and the Neosho Falls 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 analysis was performed on the shoreline sediment samples. Shoreline sediment sample locations were the Coffey County Lake discharge cove (DC) indicator location and at the control location (JRR).

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 analysis was 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 five gardens. Three indicator (G-1, N-1 and Q-6) gardens (Figure 4) and two control (D-1 and D-2) gardens (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. One crop sample was obtained from control location NR-Ul. Gamma isotopic analysis was performed on each sample. Crop sample locations are identified on Figure 5.

E. Additional Samples Collected (not required by ODCM)

Drinking water indicator location 1O-DW (lola) was sampled during the year. The drinking water sample was analyzed for gross beta, gamma emitters, 1-131 and tritium. This sample location was added due to the anticipated closure of the Neosho Falls drinking water treatment facility and is identified on Figure 5.

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. Three indicator ground water sample locations were also sampled during the fourth quarter of 2005 (F-1, G-2 and J-2). The ground water samples were analyzed for gamma emitters, 1-131 and tritium.

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Bottom sediment samples were collected at the Environmental Education Area (EEA) and from the Make-Up Discharge Structure (MUDS). Gamma isotopic analysis was performed on the bottom sediment samples. 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.

Bottom sediment samples were collected semiannually at the Coffey County Lake discharge cove (DC) indicator location and the control location (JRR). Gamma isotopic analysis was performed on the bottom sediment samples. These samples were collected as part of a cooperative sampling effort with the KDHE. The sample locations are identified on Figure 3.

Aquatic vegetation was collected from indicator locations EEA and MUDS. Gamma isotopic analysis was performed on the aquatic vegetation samples. These samples were collected as part of a cooperative sampling effort with the KDHE. The sample locations are identified on Figure 3.

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

Soil was sampled from indicator locations MUDS and EEA. Gamma isotopic analysis was 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.

Distance and direction information for the sampling locations listed in this section are outlined in Table 2.

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 and control 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.

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The gross beta results of 2005 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 2005 weekly gross beta analyses range for indicator locations was 0.014 to 0.055 pCi/M 3, which was within the 1983 and 1984 pre-operational range. Additionally, the annual mean for indicator locations for 2005 (0.030 pCi/M3 ) was lower than the annual mean for 1983 (0.032 pCi/rn3).

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

The annual mean for indicator locations for 2005 (0.030 pCi/M 3) was similar to the annual mean of the control location (0.029 pCi/M3 ).

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 2005, the range for Be-7 detected activity was 0.057 to 0.107 pCi/im3 for indicator locations, and the annual mean for indicator locations was 0.080 pCi/M 3.

The control location annual mean for Be-7 detected activity (0.076 pCi/M 3) was similar to the indicator locations annual mean (0.080 pCi/r 3).

Required lower limits of detection were met and 1-131 activity was not detected in the weekly analysis of charcoal filters at any location.

No effects of plant operation were seen via the airborne pathway for the year, and no unusual trends were noted.

B. Direct Radiation Pathway Quarterly gamma exposures measured at each location are shown in Table 3. Measured values have been converted to a standard 90-day quarter.

The annual mean of all indicator locations in 2005 was 0.271 mR/day and the annual mean for the control locations was 0.265 mR/day. The exposure measurements for the control locations and the indicator locations were elevated due to the unusually long period of time between the ship dates of the TLDs from the vendor lab and the read times by the vendor lab. This condition has been documented in the corrective action process (PIR 2006-0831).

For pre-operational comparison, in 1981, the annual mean of all indicator locations was 0.21 mR/day and annual mean for the control locations was 0.19 mR/day.

Results from TLDs located near the plant (less than three miles), which would be most affected by changes in plant operation, were combined into quarterly averages. These nearsite averages, using locations 1, 2, 7-14, 18, 26-30, 37 and 38, are compared to control location results (locations 39 and 48) in Chart 3. Chart 3 also includes preoperational data for comparison. The nearsite TLD locations have historically trended higher than the control locations both prior to and after WCGS became operational. Chart 3 also displays the elevated results for the control locations and the indicator locations.

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C. Waterborne Pathway (1) Surface Water Tritium, attributable to WCGS operation, was detected in all surface water samples collected from Coffey County Lake during 2005. Chart 4 illustrates the yearly averages of surface water tritium data for the spillway location. It can be seen in Chart 4 that surface water tritium concentrations have trended upward since plant startup. This is expected until the average tritium concentration of the lake reaches equilibrium.

Tritium activity (219 +/- 95 pCi/L), not attributable to WCGS operation, was also detected in one surface water sample obtained from the control location (JRR) on October 20. Statistically, the tritium level observed is at the lower end of the vendor laboratory's counting system capability.

Required lower limits of detection were met.

During pre-operational environmental radiological 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 Low levels of tritium, not attributable to WCGS operation, were the only activity detected in ground water samples. Two indicator locations C-10 and C-49 collected on August 11 had tritium detected at levels of 204 +/- 94 pCi/L and 217 +/- 95 pCi/L, respectively. These analysis results were verified by a laboratory re-analysis. Statistically, the tritium levels observed were at the lower end of the vendor laboratory's counting system capability. Additionally, a split sample had been obtained from location C-49 and was labeled L-49. The tritium result for the sample collected on August 11 and labeled location L-49 was <173 pCi/L.

Required lower limits of detection were met.

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

Low levels of tritium were the only activity detected in ground water samples and no unusual trends were noted.

(3) Drinking Water Chart 5 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.

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Gross beta activity was detected in all drinking water samples. The annual mean of the control location gross beta activity (3.9 pCIL) was higher when compared to the annual mean of the indicator locations (3.6 pCi/L). The 2005 annual means of gross beta activity for both the control and indicator locations were lower than those of the pre-operational monitoring year of 1984. In 1984, the annual mean of the control location gross beta activity was 6.4 pCi/L, and the annual mean of the indicator location gross beta activity was 7.5 pCi/L.

During the third quarter of 2005, low levels of tritium activity were detected in the two indicator location samples (lola: 207 +/- 83 pCiL; Neosho Falls: 243 +/- 85 pCi/L) as well as the control location sample (Burlington: 245 +/- 85 pCi/L). The analysis results were verified by a laboratory re-analysis. Statistically, the tritium levels observed were at the lower end of the vendor laboratory's counting system capability.

Required lower limits of detection were met. Additionally, radionuclides were not detected by the 1-131 or gamma isotopic analyses.

Activity due to plant operation was not evident in drinking water samples during 2005 and no unusual trends were noted.

(4) Shoreline Sediment Naturally occurring K-40 (10,382-10,953 pCi/kg, dry) was detected in samples obtained from the indicator location (DC) and in samples obtained from the control location (8,643-11,846 pCi/kg, dry). K-40 was also detected during pre-operational shoreline sediment monitoring.

Cs-137 activity was detected in the samples obtained from the control location (JRR). The indicator location (DC) samples did not have Cs-137 activity detected.

Required lower limits of detection were met. Activity due to plant operation was not evident in shoreline sediment samples during 2005 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. K-40 activity was also detected during pre-operational fish monitoring.

During 2005, fish were also analyzed for tritium. All fish samples taken from Coffey County Lake had tritium activity detected (7,699.7 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 for 2005 (9,479 pCi/kg), would receive a committed effective dose equivalent of 0.013 mRem.

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

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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.

The ODCM required lower limits of detection were met and no unusual trends were noted.

Activity attributable to plant operation was not detected.

(4) Crop Samples Gamma analysis detected naturally occurring K-40 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. The ODCM required lower limits of detection were met 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. K-40 activity was also detected during pre-operational bottom sediment monitoring.

Co-60 activity (159.7 and 182.8 pCi/kg) was detected in the samples obtained from the Coffey County Lake discharge cove. Co-60 activity was attributable to plant operation and has been identified In plant effluents. Co-60 activity was not detected in pre-operational environmental monitoring and was not detected in samples collected from control location JRR during 2005.

Chart 6 plots the Co-60 detected activity from the discharge cove and reflects a decreasing trend.

Cs-137 activity (208.9 and 234.4 pCi/kg) was detected in the indicator samples obtained from the Coffey County Lake discharge cove. A portion of this activity is due to fallout and a portion of this activity is likely plant-related since Cs-134 activity has been detected in the past. Cs-137 activity was detected in pre-operational samples, and the results for 2005 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-1 37 activity detected is approximately 45 to 542 pCi/kg.) Cs-1 37 activity has been identified in plant effluents. Cs-137 activity (154.5 and 127.6 pCi/kg) was also detected in the control location samples and in the samples obtained from the indicator location EEA (83.7 and 77.3 pCi/kg).

Chart 7 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 7 trend line indicates that as expected, Cs-137 activity detected at the JRR control location has been decreasing.

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

(2) Aquatic Vegetation Naturally occurring Be-7 and K-40 activity were detected in samples collected in 2005. Be-7 and K-40 activity were also detected during pre-operational monitoring.

No other radionuclides were detected in aquatic vegetation samples and no unusual trends were noted.

(3) Terrestrial Vegetation Naturally occurring Be-7 and K-40 activity were detected in samples collected in 2005. No other radionuclides were detected. No unusual trends were identified.

(4) Soil Naturally occurring K-40 activity was detected in both of the soil samples. K-40 activity was also detected during pre-operational soil monitoring.

Cs-137 (557.5 pCi/kg) activity was detected in one soil sample obtained from the indicator location EEA. The pre-operational Cs-137 results (255 to 2,160 pCi/kg) for soil samples were decay corrected. The decay corrected pre-operational range is approximately 160 to 1355 pCi/kg. The measured Cs-137 activity of the soil samples obtained during 2005 are within the decay corrected pre-operational range. Cs-137 activity was not detected in air samples collected during 2005. The measured Cs-137 activity in the soil sample was likely due to previous fallout and not to a recently produced fission product associated with plant operation.

No unusual trends were identified.

Ill. PROGRAM REVISIONSICHANGES No sample locations were changed during the 2005 monitoring period.

IV. PROGRAM DEVIATIONS Air Samples The air sample locations listed below failed to meet the requirement for 'continuous sampler operation." As described in footnote (1) of AP 07B-004, 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 Meter Time, which resulted in a loss of air sample collected, are listed in the following table.

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Location Sample Period Percent Explanation of Deviation Discrepancy/

Hours Unavailable 48 01/04/05 - 01/12/05 11.80/23.3 Electrical Power Outage 37 06/28/05 - 07/06/05 11.06/21.0 Electrical Power Outage During 2005, no other deviations from the AP 0713-004, Offsite Dose Calculation Manual (Radiological Environmental Monitoring Program) sampling schedule occurred.

V. INTERLABORATORY COMPARISON PROGRAM RESULTS During 2005, 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 0.286 mRem for 2005.

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 (12,855 pCi/L), would receive a committed effective dose equivalent of 0.587 mRem per year. For an adult eating 21 kg of fish per year from Coffey County Lake, using the average tritium activity (7,699 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 0.597 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 Annual Radioactive Effluent Release Report, would compare directly to those calculated from the REMP. The Annual Radioactive Effluent Release Report provides a 'snap shot' of potential dose resulting from the year's releases. The REMP data indicates the accumulated result of releasing tritium into the lake since the start of plant operation.

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TABLE I 2005 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DESCRIPTION (SAMPLE COLLECTION SPECIFIED BY ODCM)

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

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

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

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

Sample from a control location 9.5 to 18.5 miles distant in a low ranked DIQ sector (Location 48 on Figure 5) 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 11 of 30

TABLE I (Cont.)

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

RADIATION 42 routine monitoring Quarterly Gamma dose stations with two or quarterly more dosimeters measuring dose continuously, placed as follows:

An inner ring of stations, one in each meteorological sector 0-3 mile range from the site (Locations 1, 7-9, 11-13, 18, 26, 27, 29-31, 37, 38 and 47 on Figure 2).

An outer ring of stations, one in each meteorological sector in the 3-5 mile range from the site (Locations 4-6, 15-17, 19-25, and 33-36 on Figure 2). Six sectors [A, B, C, D, G, and L] contain an additional station (Locations 2, 3, 10, 14, 28 and 49).

The balance of the stations to be placed in special interest areas such as population centers (Locations 23 and 32), nearby residences 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 12 of 30

TABLE 1 (Cont.)

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

(many locations are near a residence),

schools (Location 23),

and in two areas to serve as control stations 10-20 miles distant from the site (Locations 39 and 48 on Figure 5).

WATERBORNE (See Figure 3)

Surface One sample upstream Monthly grab sample Monthly gamma (Location JRR on isotopic analysis and Figure 3) and one composite for tritium sample downstream analysis quarterly (Location SP on Figure 3).

Ground Samples from one or Quarterly grab sample Quarterly gamma two sources only if isotopic and tritium likely to be affected. analysis Indicator samples at locations hydrologically down gradient of the site (Locations C-10, C-49 and J-1 on Figure 3); control sample at a location hydrologically up gradient of the site (Location B-12 on Figure 3).

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TABLE I (Cont.)

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

Drinking Sample of municipal Monthly Composite Monthly gamma water supply at an isotopic analysis and indicator location gross beta analysis downstream of the site of composite (Location NF-DW on sample. Quarterly Figure 5); control tritium analysis of sample from location composites.

upstream of the site (Location BW-15 on Figure 3).

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

INGESTION (See Figures 4 & 5)

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

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TABLE I (Cont.)

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

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

Broadleaf Samples of available Monthly when available Gamma isotopic Vegetation broadleaf vegetation analysis on edible from two indicator portions locations (using the criteria from the "Land Use Census" section) with highest calculated annual average D/Q (Locations G-1 and Q-6 and alternate location N-1 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-I or alternate location D-2 on Figure 5).

Irrigated Crops Sample of crops At time of harvest Gamma isotopic irrigated with water analysis on edible from the Neosho River portions downstream of the Neosho River - Wolf Creek confluence (Location NR-D1 and NR-D2 on Figure 5).

2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 15 of 30

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 48 14.7 ENE D 49 0.8 NNE B TLDs 1 1.4 N A 2 2.7 N A 3 3.1 NE C 4 4.1 NNE B 5 4.1 NE C 6 4.6 ENE D 7 2.1 NE C 8 1.7 NNE B 9 2.0 ENE D 10 2.4 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 21 3.8 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 28 2.6 SW L 29 2.7 SSW K 30 2.5 W N 31 3.0 WNW P 32 3.1 WNW P 33 3.6 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 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 16 of 30

TABLE 2 (Cont.)

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

Sample Type Location Distance from Direction Sector Identifier Reactor TLDs 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 46 1.6 WNW P 47 0.16 S J 48 14.7 ENE D 49 0.8 NNE B 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 5 J J-2 4.3 5 J Drinking Water BW-15 3.9 SW L IO-DW 26.1 SSE H NF-DW 17.5 SSE H Shoreline Sediment DC 0.8 WNW P JRR 3.6 W N Fish WCL 0.6 WNW P JRR 3.7 W N Food/Garden D-1 14.7 ENE D D-2 14.8 ENE D G-1 1.6 SE G N-1 2.4 W N Q-6 2.4 NW Q Crops NR-D1 8.9 S J NR-D2 11.5 5 J NR-U1 4.0 SSW K Bottom Sediment DC 0.9 WNW P EEA 3.0 NNW R JRR 3.7 W N MUDS 1.5 WNW P Aquatic Vegetation EEA 3.0 NNW R MUDS 1.5 WNW P Terrestrial Vegetation EEA 3.0 NNW R Soil EEA 3.0 NNW R MUDS 1.5 WNW P 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 17 of 30

TABLE 3 TLD Results (mRI90-day qtr.)

Location Qtr. 1 Qtr. 1 2- Qtr. 2 Qtr. 2 2- Qtr. 3 Qtr. 3 2- Qtr. 4 Qtr. 4 2- Total 90-Day std. 90-Day std. 90-Day std. 90-Day std. Annual Avg. dev. Avg. dev. Avg. dev. Avg. dev. Exposure

.11(mR) 1 19.6 0.9 25.1 2.8 35.0 3.7 28.6 1.9 108.3 2 17.6 0.4 19.4 1.3 31.0 2.5 27.1 1.9 95.1 3 18.3 1.4 21.2 1.3 32.4 1.8 26.8 2.2 98.7 4 19.3 1.3 21.5 1.2 32.3 2.1 27.0 1.8 100.1 5 18.1 0.9 19.4 1.4 31.6 2.0 25.9 0.8 95.0 6 19.6 4.5 19.5 0.9 32.4 3.8 25.8 1.8 97.3 7 20.4 7.8 19.8 1.1 32.5 2.1 25.2 1.4 97.8 8 19.7 1.7 21.2 0.7 33.4 1.7 27.2 1.2 101.6 9 18.1 1.8 20.2 1.2 31.9 4.1 24.5 1.2 94.7 10 20.2 1.9 20.9 1.1 33.1 2.3 26.9 1.0 101.1 11 21.0 1.2 22.9 3.2 33.9 2.4 27.5 1.4 105.3 12 19.3 1.5 21.0 2.0 32.2 1.7 27.2 3.1 99.7 13 19.8 1.3 22.6 2.0 32.9 1.4 27.6 1.6 102.9 14 19.9 2.5 20.4 0.3 34.1 3.6 28.4 2.6 102.9 15 19.9 2.3 20.6 0.5 34.3 1.3 27.1 2.4 101.8 16 18.8 0.7 19.9 1.1 32.5 2.4 25.9 1.8 97.1 17 19.4 2.2 20.2 1.8 31.8 1.8 27.1 2.1 98.6 18 18.6 1.4 20.3 0.6 33.4 6.2 25.6 1.2 97.8 19 20.8 1.4 21.9 0.8 35.9 7.4 26.3 1.5 104.9 20 19.3 1.2 21.4 2.7 32.8 1.1 25.4 2.3 98.8 21 17.1 1.2 19.3 1.0 30.0 2.1 25.1 1.4 91.5 22 21.5 3.2 21.7 2.4 34.2 2.0 29.0 0.4 106.4 23 21.0 3.5 20.9 1.3 32.4 1.1 26.2 1.7 100.4 24 19.4 0.9 20.4 1.2 32.2 2.2 26.6 1.0 98.6 25 17.8 1.9 20.0 4.1 30.0 1.6 23.9 0.7 91.6 26 17.4 1.0 19.2 2.2 30.0 1.0 25.4 0.9 91.9 27 19.0 1.8 20.8 0.8 32.5 1.2 27.0 1.7 99.2 28 17.0 1.0 17.8 0.8 28.7 1.6 26.1 3.3 89.6 29 16.3 1.0 17.0 0.6 28.8 1.4 22.8 1.4 84.8 30 20.0 1.0 21.0 0.5 32.0 2.1 26.8 2.1 99.8 31 18.5 1.0 19.3 0.7 31.3 2.3 25.8 2.1 95.0 32 18.8 3.6 19.1 0.5 31.1 1.2 25.5 2.7 94.5 33 19.9 0.7 21.4 1.0 33.8 3.7 28.7 1.4 103.7 34 20.3 1.0 21.2 1.2 32.9 2.1 28.2 1.0 102.6 35 19.4 0.6 21.0 0.9 32.2 1.3 27.4 1.7 100.0 36 18.6 1.2 21.1 2.2 30.9 1.0 27.2 2.9 97.8 37 18.3 1.5 20.1 0.6 30.7 3.3 27.0 3.6 96.1 38 19.7 0.9 23.7 3.3 33.6 1.6 27.7 1.2 104.7 39 18.3 1.2 19.8 1.1 31.0 2.0 24.7 1.3 93.8 41 20.6 2.5 21.2 1.9 33.2 2.3 27.4 1.2 102 42 13.7 0.9 17.3 2.9 25.5 2.5 20.1 0.8 76.6 43 14.8 3.7 14.7 2.2 24.9 1.5 19.5 0.7 73.9 44 19.0 1.0 19.8 1.0 32.4 2.1 26.2 1.8 97.4 46 19.0 0.9 19.8 1.0 31.4 1.4 26.1 1.1 96.2 47 18.3 1.3 20.8 1.5 31.2 1.8 25.0 1.2 95.4 48 18.1 0.6 21.8 1.2 31.0 1.1 26.4 2.2 97.2 49 18.7 0.6 20.8 1.3 33.1 2.7 25.5 1.7 98.2 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 18 of 30

FIGURE 1 AIRBORNE PATHWAY SAMPLING LOCATIONS

• = PJRBORNE PARTICULATE AND RADIOIODINE 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 19 of 30

FIGURE 2 DIRECT RADIATION PATHWAY SAMPLING LOCATIONS

• = TLD LOCATIONS 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 20 of 30

FIGURE 3 WATERBORNE PATHWAY SAMPLING LOCATIONS

• -DRINKINGWATER A = SURFACE WATER

• = GROUND WATER * = SHORELINE SEDIMENT

• = BOTTOM SEDIMENT v = AQUATIC VEGETATION / ALGAE 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 21 of 30

FIGURE 4 INGESTION PATHWAY SAMPUNG LOCATIONS A = FISH (JRR) * = BROADLEAF VEGETATION

= FISH (WCL)

• = SOIL

/ = DEER

= TERRESTRIAL VEGETATION 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 22 of 30

FIGURE 5 A

D I'*1 DISTAN4T SAMPLING LOCATINSa

-TLD * . RORIN _-a

• - AIRBORNE PARTICULATE & RADIOIODINE * -BROA LEAF VEGETATIONM IRR TE=RP 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 23 of 30

CHART 1 2005 Airborne Gross Beta Weekly Results 0.070 0.060 a3 0.050 E

0 D 0.040 0.

- 0.030 m

a)

CD 0 0.020 0.010 0.000 0 4 8 12 16 20 24 28 32 36 40 44 48 52 Week Number lo Location 2

• Location 18 + Location 32 A Location 37 a Location 48 (Control)

• Location 49 2005 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 24 of 30

CHART 2 Historical Airborne Smoothed (Avg of 20) Indicator and Control Gross Beta 0.060 I-

.62 E 0.050 0)

U) 0 0.040 U)

CD 0

8M0) 0.030 4-

• 0 0

0c 0.020 E

C00 =0.020

°qz N °a\ 0t\ N6 ob\ b6\ AN°0 qqNAP 5 0 \o5@ Sp Sp

°t N

- - - Smoothed Avg. Indicator Locations - Smoothed Avg. Control Location (40)

Smoothed Avg. Control Location (48) 2005 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 25 of 30

CHART 3 TLD Nearsite Locations and Control Locations 32.0-30.0 -

Elevated results due to unusually 28.0 longer exposure duration.

26.0 24.0 22.0 0 20.0 -S

.0S- 0 A 16.0 -AI 'A 14.0 - -~A ~'~

12.0 19801981198219831984198519861987198819891990199119921993199419951996199719981999200020012002200320042005 l Avg. of Nearsite Locations A Avg. of Control Locations

- Moving Avg. of Nearsite Locations (2 period) - - - Moving Avg. of Control Locations (2 period) 2005 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 26 of 30

CHART 4 Coffey County Lake Surface Water Tritium Data 16000 14000 12000 10000

._ 8000 6000 4000 2000 0 X-1987 1989 1991 1993 1995 1997 1999 2001 2003 2005 l-- Yearly Average of Spillway Location - Polynomial Trendline 2005 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 27 of 30

CHART 5 Drinking Water Gross Beta (5 years) 9 8

7 6

0)

._C 5 Q

4-0 (0 4 CD0 CD 3 2

1 0 i l l l o<ZK I S\i° qK & & & &

- BW15 (Control) LW40 (Indicator) - - -NFDW (Indicator) - -IODW (Indicator) l 2005 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 28 of 30

CHART 6 Detected Co-60 Activity in Coffey County Lake Discharge Cove Bottom Sediment 2500 2000 1500 C-0.

1000 500 0

r1- Cw )

o O

aw N

o)

M n co r- Co t-O 0O N "_ LO co co Co oC CD o) M oM o) M 0 0 0 0 0D o

) 0) 0) 0) 0) C) 0) 0) 0) 0) 0) 0) 0) 0 0 0 0 0 0 V- Ir.N N C Co CD C 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

- co-60 - Polynomial Trendline 2005 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 29 of 30

CHART 7 Detected Cs-1 37 Activity in Bottom Sediment 1000 -

900 -

800 700 600 400 -

300-

• 200 /

100 0 - . . . _ _

_- N N LO r- co 0 _ N C%4 1)

U1 I- w 0) O N 1N C T U1)

Q 0 g 0Q 0 0 ) 0 0 00 0 0 0 0

_ O 0 N N N N _- 0O 0 ' _ N N 0O- 0 0 '- 0 'O-0 . - - - - - - - - Q - - - -O - - - _- _

o 0 0 0 0 0 0 0 0 0 0 '- 0 0 _ _ 0 '

I

• DC Cs-I137

• JRR Cs-137 - Polynomial Trendline (DC) Polynomial Trendline (JRR)l 2005 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 30 of 30

- Environmental, Inc.

Midwest Laboratory an Aleghy Tedinoles Co.

700 Landwehr Road

• Noio, IL 6DO62-2310 ph. (847) 564.0700 tax (847) 5644517 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 InAppendix 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 InMarch, June, September and December monthly progress reports only.

January, 2005 through December, 2005

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

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

Results in Table A-1 were obtained through participation in the environmental sample crosscheck program administered by Environmental Resources Associates, serving as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada.

The results in Table A-2 list 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 Ospiked' 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 Oblank" samples for the past twelve months.. Data for previous years available upon request.

Table A-5 list results of 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. Data for previous years available upon request.

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

Attachment A lists acceptance criteria for *spiked samples.

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 ANALYSES' One standard deviation Analysis Level for single determination Gamma Emitters 5 to 100 pCilliter or kg 5.0 pCifliter

> 100 pCilliter or kg 5% of known value Strontium-89b 5 to 50 pCVliter 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 2 0.1 gllter or kg 5% of known value Gross alpha s 20 pCilliter 5.0 pCi/liter

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

> 100 pCi/liter 5% of known value Tritium 5 4,000 pCi/liter l au = (pCi/liter) =

169.85 x (known)t0 0

> 4,000 pCiliter 10% of known value Radium-226,-228 2 0.1 pCiliter 15% of known value Plutonium 2 0.1 pCi/liter, gram, or sample 10% of known value lodine-1 31, 5 55 pCi/liter 6.0 pCi/liter lodine-129b > 55 pCi/liter 10% of known value Uranium-238, s 35 pCbliter 6.0 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 Othersb 20% of known value

• From EPA publication, 'Environmental Radioactvity 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).

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Resuith Resultc Limits Acceptance STW-1051 02/15/05 Sr-89 28.0 +/- 1.2 29.4 20.7 - 38.1 Pass STW-1051 02/15/05 Sr-90 25.1 +/-0.7 24.4 15.7 - 33.1 Pass STW-1052 02/15/05 Ba-133 52.9 I 2.8 53.4 44.2 - 62.6 Pass STW-1052 02/15/05 Co-60 54.4

• 0.4 56.6 47.9 - 65.3 Pass STW-1052 02/15/05 Cs-134 67.7

• 1.8 64.9 56.2 - 73.6 Pass STW-1052 02/15/05 Cs-137 39.6 +/- 1.8 40.2 31.5 - 48.9 Pass STW-1052 02/15/05 Zn-65 159.7 i 3.0 161.0 133.0 - 189.0 Pass STW-1053 02/15/05 Gr. Alpha 55.1 +/- 1.8 67.9 38.5 - 97.3 Pass STW-1053 02/15/05 Gr. Beta 46.8

• 1.3 51.1 38.5 - 97.3 Pass STW-1054 02/15/05 Ra-226 13.7 i 1.5 14.1 10.4 -17.8 Pass STW-1054 02/15/05 Ra-228 13.3 +/- 0.6 13.7 7.8 -19.6 Pass STW-1054 02/15/05 Uranium 5.1 +/-0.2 5.0 0.0 -10.2 Pass STW-1055 05/17/05 Sr-89 45.1 +/-4.1 41.3 32.6 - 50.0 Pass STW-1055 05/17/05 Sr-90 7.5 i 0.9 5.9 0.0 - 14.6 Pass STW-1056 05/17/05 Ba-133 87.1 f2.0 88.4 73.1 - 104.0 Pass STW-1056 05/17/05 Co-60 38.4 i 0.8 37.0 28.3 -45.7 Pass STW-1056 05/17/05 Cs-134 75.3 i 0.7 78.6 69.9 - 87.3 Pass STW-1056 05/17/05 Cs-137 201.0 +/- 8.4 194.0 184.0 - 218.0 Pass STW-1056 05/17/05 Zn-65 130.0 +/- 6.7 118.0 97.6 - 138.0 Pass STW-1057 05/17/05 Gr. Alpha 42.7 +/- 2.9 37.0 21.0 - 53.0 Pass STW-1057 05/17/05 Gr. Beta 34.0 +/- 0.4 34.2 25.5 - 42.9 Pass STW-1058 05/17/05 1-131 14.7 i 0.5 15.5 10.3 - 20.7 Pass STW-1059 05/17/05 Ra-226 6.6 +/- 0.1 7.6 5.6 - 9.5 Pass STW-1059 05/17/05 Ra-228 19.3 +/- 0.7 18.9 10.7 - 27.1 Pass STW-1059 05/17/05 Uranium 9.6 +/-:0.1 10.1 4.9 - 15.3 Pass STW-1060 05/17/05 H-3 24100.0 +/- 109.0 24400.0 20200.0 - 28600.0 Pass STW-1067 08/16/05 Sr-89 29.1

• 3.0 28.0 19.3 - 36.7 Pass STW-1067 08/16/05 Sr-90 36.0 +/- 0.6 33.8 25.1 -42.5 Pass STW-1068 08/16/05 Ba-133 107.0 +/- 1.7 106.0 87.7 - 124.0 Pass STW-1068 08/16/05 Co-60 15.2 +/- 0.2 13.5 4.8 -22.2 Pass STW-1068 08/16/05 Cs-134 89.1 +/- 0.3 92.1 83.4 -101.0 Pass STW-1068 08/16/05 Cs-137 72.1 +/- 1.0 72.7 64.0 -81.4 Pass STW-1068 08/16/05 Zn-65 67.4 +/- 1.4 65.7 54.3 - 77.1 Pass STW-1069 08/16/05 Gr. Alpha 44.3 +/- 1.5 55.7 31.6 - 79.8 Pass STW-1069 08/16/05 Gr. Beta 58.4 +/- 2.1 61.3 44.0 - 78.6 Pass STW-1070 08/16/05 Ra-226 16.6 +/- 1.5 16.6 12.3 - 20.9 Pass STW-1070 08/16/05 Ra-228 6.2 +/- 0.3 6.2 3.5 - 8.9 Pass STW-1070 08/16/05 Uranium 4.5 i 0.1 4.5 0.0 - 9.7 Pass A1-1

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

Concentration (pCiL)

Lab Code Date Analysis Laboratory ERA Control Resultb Resultc Limits Acceptance STW-1072 11/15/05 Sr-89 20.6 +/- 0.4 19.0 10.3 - 27.7 Pass STW-1072 11/15/05 Sr-90 15.0 +/-0.3 16.0 7.3 - 24.7 Pass STW-1073 11/15/05 Ba-1 33 31.8 +/- 1.8 31.2 22.5 - 39.9 Pass STW-1073 11/15/05 Co-60 85.0 +/- 1.4 84.1 75.4 - 92.8 Pass STW-1073 11/15/05 Cs-134 37.2 +/- 2.1 33.9 25.2 -42.6 Pass STW-1073 11/15/05 Cs-137 27.8 +/- 0.7 28.3 19.6 - 37.0 Pass STW-1073 11/15/05 Zn-65 109.0 +/- 1.0 105.0 86.8 - 123.0 Pass STW-1074 d 11/15/05 Gr. Alpha 41.1 +/-1.2 23.3 13.2 - 33.4 Fall STW-1074 11/15105 Gr. Beta 42.7 +/- 0.5 39.1 30.4 - 47.8 Pass STW-1075 11/15/05 1-131 20.5 +/- 0.6 17.4 12.2 - 22.6 Pass STW-1076 11/15/05 Ra-226 7.8

• 0.6 8.3 6.2 - 10.5 Pass STW-1076 c 11/15/05 Ra-228 5.5 i 0.6 3.5 2.0 - 5.0 Fall STW-1076 11/15/05 Uranium 15.5 +/- 0.3 16.1 10.9 - 21.3 Pass STW-1077 11/15/05 H-3 12500.0 +/- 238.0 12200.0 10100.0 - 14300.0 Pass

• 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, I determination) and control limits as provided by ERA.

d The original samples were calculated using an Am-241 efficiency. The samples were spiked with Th-232. Samples were recounted and calculated using the Th-232 efficiency. Results of the recount: 27.01

• 2.35 pCI/L

• Decay of short-lived radium daughters contributed to a higher counting rate. Delay of counting for 100 minutes provided better results.

The reported result was the average of the first cycle of 100 minutes, the average of the second cycle counts was 4.01 pCiVL A1-2

TABLE A-2. Crosscheck program results; Thermoluminescent Dosimetry, (TLD, CaSO4: Dy Cards).

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

2005-1 4/4/2005 30 cm 55.01 64.02 i 2.86 38.51 - 71.51 Pass 2005-1 4/4/2005 60 cm 13.75 15.43 +/- 1.02 9.63 - 17.88 Pass 2005-1 41412005 60 cm 13.75 14.98 +/- 0.80 9.63 - 17.88 Pass 2005-1 41412005 90 cm 6.11 6.24 +/- 0.16 4.28 - 7.94 Pass 2005-1 4/412005 90 cm 6.11 5.45 +/- 0.48 4.28 - 7.94 Pass 2005-1 4/4/2005 120 cm 3.44 3.50 +/- 0.35 2.41 - 4.47 Pass 2005-1 4/4/2005 120 cm 3.44 3.15 +/- 0.18 2.41 - 4.47 Pass 2005-1 4/4/2005 150 cm 2.2 2.31 +/-0.25 1.54 - 2.86 Pass 2005-1 4/4/2005 180 cm 1.53 1.65 +/- 0.41 1.07 - 1.99 Pass Environmental. Inc.

2005-2 9/12/2005 30cm 54.84 59.30 +/- 2.66 38.39 - 71.29 Pass 2005-2 9/12/2005 60 cm 13.71 17.55 +/- 1.30 9.60 - 17.82 Pass 2005-2 9/12/2005 75 cm 8.77 8.24 +/- 0.38 6.14 - 11.40 Pass 2005-2 9/1212005 90 cm 6.09 5.94 +/- 0.49 4.26 - 7.92 Pass 2005-2 9/12/2005 90 cm 6.09 5.93 +/- 0.37 4.26 - 7.92 Pass 2005-2 9/12/2005 120 cm 3.43 3.42 +/- 0.18 2.40 - 4.46 Pass 2005-2 9/12/2005 150 cm 2.19 1.71 +/- 0.14 1.53 - 2.85 Pass 2005-2 9/12/2005 150 cm 2.19 1.87 +/- 0.27 1.53 - 2.85 Pass 2005-2 9/12/2005 180cm 1.52 1.58

• 0.99 1.06 -1.98 Pass A2-1

TABLE A-3. In-House Spike Samples Concentration (pCilL)

Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Umits d Acceptance W-11105 1/11/2005 Gr. Alpha 24.05 i 1.01 20.08 10.04 - 30.12 Pass W-11105 1/11/2005 Gr. Beta 61.59

• 1.11 65.70 55.70 - 75.70 Pass SPW-764 2/18/2005 H-3 77595.00 +/- 764.00 80543.00 64434.40 - 96651.60 Pass SPAP-766 2/18/2005 Gr. Beta 416.08 +/- 5.52 463.00 370.40 - 509.30 Pass STW-2887 2/28t2005 Tc-99 32.91 +/-1.23 32.98 20.98 - 44.98 Pass W-30105 3t1/2005 Gr. Alpha 25.22 +/- 0.45 20.08 10.04 - 30.12 Pass W-30105 311/2005 Gr. Beta 62.27 +/- 0.48 65.73 55.73 - 75.73 Pass SPW-1836 4/15/2005 1-131 109.79 +/- 0.94 106.30 85.04 - 127.56 Pass SPW-1836 4/15/2005 1-131(G) 110.25 +/- 9.68 106.30 95.67 -116.93 Pass SPMI-1838 4/15/2005 Cs-134 25.94 +/- 1.28 26.60 16.60 - 36.60 Pass SPMI-1838 4/15/2005 Cs-137 59.31 +/- 3.66 60.90 50.90 - 70.90 Pass SPMI-1838 4/15/2005 1-131 97.71 +/- 0.81 106.30 85.04 - 127.56 Pass SPMI-1838 4/15/2005 1-131(G) 109.45 +/- 3.06 106.30 95.67 - 116.93 Pass SPMI-1838 4/15/2005 Sr-89 104.44 +/- 2.89 108.20 86.56 - 129.84 Pass SPMI-1838 4/15/2005 Sr-90 8.97 f 0.79 7.53 0.00 - 17.53 Pass SPVE-1932 4/18/2005 1-131(G) 1.00 0.04 0.73 0.44 - 1.02 Pass SPCH-1935 4/18/2005 1-131 382.40

• 14.95 328.64 262.91 - 394.37 Pass SPAP-1966 4/18/2005 Cs-1 34 52.10

• 7.27 53.35 43.35 -63.35 Pass SPAP-1966 4/18/2005 Cs-1 34 57.28 +/- 13.47 53.35 43.35 - 63.35 Pass SPAP-1966 4/18(2005 Cs-137 124.68

• 18.41 121.77 109.59 - 133.95 Pass SPAP-1968 4/18/2005 Cs-134 52.10 +/- 7.27 53.35 43.35 - 63.35 Pass SPAP-1968 4/18/2005 Cs-137 116.79 +/- 14.00 121.77 109.59 - 133.95 Pass SPW-2098 4/26/2005 Fe-55 2565.20 +/- 63.66 3017.60 2414.08 - 3621.12 Pass SPW-2922 5/31/2005 Cs-134 27.01 i 1.09 25.54 15.54 - 35.54 Pass SPW-2922 5/31/2005 Cs-134 65.38 +/- 2.92 60.71 50.71 - 70.71 Pass SPW-2922 5/31/2005 Sr-89 107.90 +/- 3.60 113.90 91.12 - 136.68 Pass SPW-2922 5/31/2005 Sr-90 11.11 +/- 1.13 6.90 0.00 - 16.90 Pass SPAP-2892 6/1/2005 Gr. Beta 420.32 +/- 5.55 448.00 358.40 -492.80 Pass SPW-2895 6/1/2005 H-3 75271.00 f 724.00 78676.00 62940.80 - 94411.20 Pass w-60105 6(1/2005 Gr. Alpha 23.69 +/- 0.52 20.08 10.04 - 30.12 Pass w-60105 6(1(2005 Gr. Beta 60.08 +/- 0.57 65.73 55.73 - 75.73 Pass SPF-3089 617/2005 Cs-134 1.08 +/- 0.05 1.02 0.61 - 1.43 Pass SPF-3089 617/2005 Cs-137 2.54 +/- 0.10 2A3 1.46 - 3.40 Pass SPW- 7/1/2005 NI-63 20.57 i 1.10 16.75 10.05 - 23.45 Pass SPW-47731 8/24/2005 C-14 2112.30 +/- 9.13 2370.80 1422.48 - 3319.12 Pass SPW-47732 8/24/2005 C-14 2294.10 +/- 10.37 2370.80 1422.48 - 3319.12 Pass SPW-4775 8/24/2005 Fe-55 2633.50 +/- 62.40 2777.50 2222.00 - 3333.00 Pass SPMI-4834 8/30/2005 Cs-134 49.27 +/- 4.68 47.02 37.02 - 57.02 Pass SPMI-4834 8/30/2005 Cs-137 58.17 +/- 8.18 60.37 50.37 - 70.37 Pass SPMI-4834 8/30/2005 Sr-89 66.39 +/- 3.13 65.90 52.72 - 79.08 Pass SPMI-4834 8/30/2005 Sr-90 11.15 +/- 1.13 9.60 0.00 - 19.60 Pass A3-1

TABLE A-3. In-House 'Spikeo Samples Concentration (pCi/L)

Lab Code Date Analysis Laboratory results Known Control 2s, n=1b Activity Limltsc Acceptance SPW-4836 8130/2005 Cs-134 47.35

• 5.19 47.02 37.02 - 57.02 Pass SPW-4836 8130/2005 Cs-137 62.91 +/- 9.08 60.37 50.37 - 70.37 Pass SPW-4836 8130/2005 Sr-89 11.04

• 0.98 9.60 0.00 - 19.60 Pass SPW-4836 8/30/2005 Sr-90 65.89

• 2.79 65.90 52.72 - 79.08 Pass SPW-5014 8/30/2005 H-3 77518.20

• 753.80 77602.52 62082.02 - 93123.02 Pass W-90705 9/7/2005 Gr. Alpha 24.61

• 0.48 20.08 10.04 - 30.12 Pass W-90705 9/7/2005 Gr. Beta 58.35 +/- 0.49 65.73 55.73 - 75.73 Pass SPW-5237 9/22/2005 C-14 2387.40

• 11.00 2370.80 1422.48 - 3319.12 Pass SPW-5508 9/26/2005 Ni-63 20.64

• 1.23 16.70 10.02 - 23.38 Pass SPW-6019 1012412005 Tc-99 547.99

• 6.69 539.22 377.45 - 700.99

• Pass SPF-6293 11/4/2005 Cs-1134 941.30 *44.10 886.00 797.40 - 974.60 Pass SPF-6293 11/4/2005 Cs-137 2570.40

• 105.30 2400.00 2160.00 - 2640.00 Pass SPAP-6309 11/712005 Cs-134 41.24

• 1.91 44.03 34.03 - 54.03 Pass SPAP-6309 11/7/2005 Cs-1137 114.03

• 5.01 120.24 108.22 - 132.26 Pass SPAP-6311 11/7/2005 Gr. Beta 1.58

• 0.02 1.42 1.14 - 11.42 Pass SPW-6451 11110/2005 H-3 77126.00 +/- 747.00 76749.00 61399.20 - 92098.80 Pass W-120105 12/1/2005 Gr. Alpha 25.16

• 0.45 20.08 10.04 - 30.12

• Pass W-120105 12/1/2005 Gr. Beta 74.58 +/- 0.81 65.73 55.73 - 75.73 Pass SPW-7440 12/30/2005 Cs-134 42.67 +/- 4.22 42.03 32.03 - 52.03 Pass SPW-7440 12/30/2005 Cs-1 37 61.19 +/- 7.20 59.91 49.91 - 69.91 Pass SPMI-7442 12/3112005 Cs-134 40.41 +/- 5.66 42.03 32.03 - 52.03 Pass SPMI-7442 12/31/2005 Cs-1 37 60.05 +/- 7.80 59.91 49.91 - 69.91 Pass

• Liquid sample results are reported inpCi/LIter, air filters( pC/filter), charcoal (pCim 3), and solid samples (pCIg).

b Laboratory codes as follows: W (water), Ml (milk), AP (air filter), SO (soil), VE (vegetation),

CH (charcoal canister), F (fish).

CResults are based on single determinations.

d Control limits are based on Attachment A, Page A2 of this report.

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/Lj Lab Code Sample Date Analysis Laboratory results (4.66a) Acceptance Type LLD Activityb Criteria (4.66 a)

W-11105 water 1/11/2005 Gr. Alpha 0.055 0.00 +/- 0.038 I W-1 1105 water 1/11/2005 Gr. Beta 0.15 -0.016 *0.10 3.2 SPW-765 2/18/2005 H-3 165.8 7.4 862.5 200 SPAP-766 Air Filter 2/18/2005 Gr. Beta 0.72 0.29 +/- 0.48 3.2 STW-2888 water 2/28/2005 Tc-99 1.32 0.45 +/- 0.81 10 W-30105 water 3/1/2005 Gr. Alpha 0.067 -0.007 +/- 0.043 1 W-30105 water 3/1/2005 Gr. Beta 0.18 -0.04 +/- 0.11 3.2 SPW-1837 water 4/15/2005 Cs-134 4.66 10 SPW-1837 water 4/15/2005 Cs-1 37 5.38 10 SPW-1837 water 4/15/2005 1-131 0.30 -0.13

• 0.16 0.5 SPW-1837 water 4/15/2005 1-131(G) 6.56 20 SPMI-1839 Milk 4/15/2005 1-131 0.26 -0.083 +/- 0.14 0.5 SPMI-1839 Milk 4/15/2005 Sr-89 0.54 -0.069 +/- 0.56 5 SPMI-1 839 Milk 4/15/2005 Sr-90 0.53 0.88 +/- 0.34 1 SPCH-1934 Charcoal 4/18/2005 1-131 (G) 2.34 9.6 SPW-2097 water 4/26/2005 Fe-55 859.0 96.1 *528.4 1000 SPW-2923 water 5/31/2005 Cs-134 3.29 10, SPW-2923 water 5/31/2005 Cs-137 3.87 10 SPW-2896 water 6/1/2005 H-3 138.30 48.1 i 85.9 200 w-60105 water 6/1/2005 Gr. Alpha 0.061 0.002 +/- 0.043 1 w-60105 water 6/1/2005 Gr. Beta 0.16 0.056 +/- 0.11 3.2 SPF-3090 Fish 6/7/2005 Cs-134 15.69 100 SPF-3090 Fish 6/7/2005 Cs-137 11.71 100 SPW- water 7/1/2005 Ni-63 1.60 0.79

• 0.99 20 SPW-4774 water 8/24/2005 C-14 12.18 2.84 +/- 6.45 200 SPW-4776 water 8/24/2005 Fe-55 833 275 +/- 525 1000 SPMI-4835 Milk 8/30/2005 Co-60 4.42 10 SPMI-4835 Milk 8/30/2005 Cs-134 4.18 10 SPMI-4835 Milk 8/30/2005 Cs-137 6.25 10 SPMI-4835 Milk 8/30/2005 1-131(G) 5.37 20 SPMI-4835 Milk 8/30/2005 Sr-89 0.66 -0.23 +/- 0.65 5 SPMI-4835 d Milk 8/30/2005 Sr-90 0.66 1.02 +/- 0.41 1 SPW-4837 water 8/30/2005 Co-60 2.48 10 SPW-4837 water 8/30/2005 Cs-134 3.85 10 SPW-4837 water 8/30/2005 Cs-137 3.00 10 SPW-4837 water 8/30/2005 Sr-89 0.63 0.25 +/- 0.53 5 SPW-4837 water 8/30/2005 Sr-90 0.63 -0.035 +/- 0.29 1 SPW-5015 water 8/30/2005 H-3 142.8 168 +/- 93 200 SPW-5238 water 9/22/2005 C-14 17.10 3.02 +/- 9.04 200 A4-1

TABLE A-4. In-House "BIank" Samples Concentration (pCI/L)

Lab Code Sample Date Analysis Laboratory results (4.66ca) Acceptance Type LLD Acivityb Criteria (4.66 a)

W-90705 water 9/7/2005 Gr. Aipha 0.056 0.034 +/- 0.04 I W-90705 water 9/7/2005 Gr. Beta 0.16 0.082 +/-0.11 3.2 SPW-5238 water 9/22/2005 C-14 17.10 3.02 +/- 9.04 200 SPW-5509 water 9/26/2005 Ni-63 1.25 1.23 +/- 0.79 20 SPW-6020 water 10/24/2005 Tc-99 4.81 -1.75 +/- 2.90 10 SPF-6294 Fish 11/4/2005 Cs-1 34 18.60 100 SPF-6294 Fish 11/4/2005 Cs-1 37 12.99 100 SPAP-6310 Air Filter 11/7/2005 Cs-1 34 3.23 100 SPAP-6310 Air Filter 11/7/2005 Cs-1 37 3.86 100 SPAP-6312 Air Filter 11/7/2005 Gr. Beta 1.22 -0.64 +/- 0.64 3.2 W-120105 water 12/1/2005 Gr. Aipha 0.05 0.033 +/- 0.04 1 W-120105 water 12/1/2005 Gr. Beta 0.15 -0.043 +/- 0.11 3.2 SPMI-7419 Milk 12/22/2005 Co-60 7.24 10 SPMI-7419 Milk 12/22/2005 Cs-137 5.61 10 SPMI-7419 Milk 12/22/2005 1-131(G) 10.96 20 SPW-7421 water 12122/2005 Co-60 2.43 10 SPW-7421 water 12/22/2005 Cs-137 3.12 10 SPW-7441 water 12130/2005 Cs-134 4.25 10 SPW-7441 water 12/30/2005 Cs-137 1.63 10 SPMI-7443 Milk 12/30/2005 Cs-134 4.74 10 SPMI-7443 Milk 12/3012005 Cs-137 8.53 10

• Lquid sample results are reported In pCULiter, air fllters( pCi/filter), charcoal (pCIcharcoal canister), and solid samples (pCilg).

b Activity reported Is a net activity result. For gamma spectroscopic analysis, activity detected below the LLD value is not reported 1-131(G); Iodine-131 as analyzed by gamma spectroscopy.

d Low levels of Sr-90 are still detected In the environment. A concentration of (1-5 pCUL) in milk Is not unusual.

A4-2

TABLE A-5. In-House "Duplicatew Samples Concentration (pCUL)

Averaged Lab Code Date Analysis First Result Second Result Result Acceptance SW-62, 63 1/3/2005 Gr. Beta 3.01 i 0.57 2.39 +/- 0.58 2.70 +/- 0.41 Pass SW-62, 63 1/3/2005 K-40 2.00 i 0.20 2.10 +/- 0.20 2.05 +/- 0.14 Pass CF-95, 96 1/3/2005 Gr. Beta 6.26 i 0.23 6.28 +/- 0.23 6.27 +/-0.16 Pass CF-95, 96 11312005 K-40 5.68 i 0.59 5.37

• 0.48 5.53 +/- 0.38 Pass AP-791, 792 1/14/2005 Be-7 0.057

• 0.017 0.07 *0.04 0.06 +/- 0.02 Pass WW-353, 354 1/19/2005 Gr. Beta 8.37 +/- 1.21 10.28 +/- 1.34 9.32 +/- 0.90 Pass SO-383, 384 1/19/2005 H-3 453.50 +/- 107.20 417.90 +/- 106.00 435.70 +/- 75.38 Pass LW-431, 432 1/27/2005 Gr. Beta 2.45 +/- 0.54 2.20 +/-0.54 2.33 +/- 0.38 Pass MI-486, 487 211/2005 K-40 1319.40 +/- 163.60 1177.20 +/- 179.70 1248.30 +/- 121.51 Pass SW-511, 512 2/1/2005 1-131 0.37

• 0.22 0.44 +/- 0.23 0.40 +/- 0.16 Pass TD-628, 629 2/1/2005 H-3 489663

• 1918 491225 +/- 1915 490444 +/- 1355 Pass DW-538, 539 2/3/2005 Gr. Beta 3.93 +/- 1.18 3.62 +/- 1.10 3.78 +/- 0.81 Pass Ml-564, 565 2/8/2005 K-40 1316.20 +/- 171.10 1292.60 +/- 154.40 1304.40 +/- 115.23 Pass DW-50134, 5 2/11/2005 Gr. Beta 18.41 +/-0.98 16.76 +/- 0.98 17.59 +/- 0.69 Pass SWU-893, 894 2/2212005 Gr. Beta 4.00 +/- 0.96 4.20 +/- 0.72 4.10 f 0.60 Pass SW-925, 926 2/25/2005 Gr. Beta 5.97 +/- 1.51 6.14 +/- 1.55 6.06 +/- 1.08 Pass SW-950, 951 3/112005 Gr. Beta 0.92 +/- 0.27 1.21 +/- 0.27 1.07 +/- 0.19 Pass SW-50, 951 3/112005 Gr. Beta 2.06 +/- 0.40 2.29 +/-0.44 2.18 +/- 0.30 Pass SW-973, 974 3/112005 1-131 1.08 i 0.19 0.92 +/- 0.18 1.00 +/- 0.13 Pass DW-50248, 9 3/1612005 Gr. Alpha 5.27 +/- 1.06 4.17 +/- 0.90 4.72 +/- 0.70 Pass DW-1264, 1265 3/19/2005 1-131 0.54 +/- 0.21 0.73 +/- 0.20 0.63 +/- 0.15 Pass AP-1955, 1956 3/28/2005 Be-7 0.071 +/- 0.009 0.071 $ 0.009 0.071 +/- 0.006 Pass AP-1890, 1891 3129/2005 Be-7 0.060 +/- 0.013 0.069 +/- 0.013 0.065 +/- 0.009 Pass AP-2025, 2026 3129/2005 Be-7 0.063 +/- 0.012 0.071 +/-0.011 0.067 +/- 0.008 Pass MI-1346, 1347 313012005 K-40 1252.80 +/- 120.50 1334.10 +/- 106.60 1293.45 +/- 80.44 Pass AP-2048, 2049 313012005 Be-7 0.075 +/- 0.018 0.071 +/- 0.015 0.073 +/- 0.012 Pass AP-2081, 2082 3130/2005 Be-7 0.073 +/- 0.016 0.061 +/- 0.018 0.067 +/- 0.012 Pass SWU-1521, 1522 313112005 Gr. Beta 2.83 +/- 1.16 3.46 +/- 1.23 3.14 +/- 0.85 Pass WW-1738, 1739 4/5/2005 Gr. Beta 11.44 +/- 1.17 11.14 +/- 1.62 11.29 +/- 1.00 Pass SW-1857, 1858 4/1312005 Gr. Beta 7.04 +/- 1.71 9.96 +/-1.65 8.50 +/- 1.19 Pass LW-1911, 1912 4/14/2005 Gr. Beta 2.50 +/- 0.63 3.23 +/- 0.67 2.86 +/- 0.46 Pass F-1976, 1977 4/1812005 K-40 3.09 +/- 0.60 3.33 +/- 0.40 3.21 +/- 0.36 Pass MI-2111, 2112 4/26/2005 K-40 1291.50 i 177.90 1323.70 +/- 108.80 1307.60 +/- 104.27 Pass SWU-2158, 2159 4/26/2005 Gr. Beta 3.69 +/- 0.74 3.54 +/- 0.66 3.62 +/- 0.50 Pass DW-2349, 2350 4/29/2005 1-131 0.58 +/- 0.27 0.49 +/- 0.27 0.53 +/- 0.19 Pass SO-2305, 2306 512/2005 Cs-137 0.11 +/- 0.05 0.11 $ 0.04 0.11 +/- 0.03 Pass SO-2305, 2306 5/2/2005 Gr. Alpha 7.55 +/- 2.88 12.41 +/- 3.38 9.98 +/- 2.22 Pass SO-2305, 2306 5/2/2005 Gr. Beta 28.74 +/- 2.57 28.17 +/- 2.52 28.46 +/- 1.80 Pass SO-2305, 2306 5/2/2005 K-40 21.51 +/- 1.22 21.42 +/- 1.24 21.47 +/- 0.87 Pass SO-2305, 2306 512/2005 Sr-g0 32.90 +/- 9.90 29.60 +/- 13.90 31.25 +/- 8.53 Pass MI-2260, 2261 513/2005 K-40 1028.10 +/- 99.36 1206.70 +/- 118.50 1117.40 +/- 77.32 Pass F-2630. 2631 5/5/2005 K-40 3.08 +/- 0.46 3.04 +/- 0.51 3.06 +/- 0.34 Pass VE-2502, 2503 5/10/2005 Gr. Alpha 0.06 i 0.03 0.07 +/- 0.04 0.07 +/- 0.03 Pass A5-1

TABLE A-5. In-House Duplicate Samples Concentration (pCi/L)'

Averaged Lab Code Date Analysis First Result Second Result Result Acceptance VE-2502, 2503 5110/2005 Gr. Beta 3.81 +/-0.10 386 +/- 0.10 3.83 +/- 0.07 Pass VE-2502, 2503 5/10/2005 K-40 3.79 +/- 0.40 4.30 +/- 0.59 4.04 +/- 0.36 Pass G-2546, 2547 5/111/2005 Be-7 0.81

• 0.39 1.25 +/- 0.38 1.03 +/- 0.27 Pass G-2546, 2547 5/11/2005 K-40 9.43

• 1.00 7.96 +/- 0.85 8.70 +/- 0.66 Pass SS-2787, 2788 5/18/2005 Cs-137 0.13 +/- 0.04 0.14 +/- 0.05 0.13 +/- 0.03 Pass SS-2787, 2788 5/18/2005 K-40 12.44 $ 0.76 13.33 +/- 0.83 12.88 +/- 0.56 Pass SO-3056, 3057 5/19/2005 Cs-137 0.18 +/- 0.04 0.17 +/- 0.01 0.18 +/- 0.02 Pass S0-3056, 3057 b 5/19/2005 K-40 20.06 +/- 1.10 21.73 +/- 0.36 20.90 +/- 0.58 Fall SS-3175, 3176 5/2312005 K-40 6.06

• 0.44 5.96 +/- 0.61 6.01 +/- 0.38 Pass SO-2865, 2866 5/25/2005 Cs-1 37 0.18

• 0.04 0.18 +/- 0.03 0.18 +/- 0.02 Pass SO-2865, 2866 5/25/2005 Gr. Beta 32.95

• 2.48 33.88 +/- 2.36 33.41 +/- 1.71 Pass SO-2865, 2866 5/25/2005 K-40 21.93

• 0.97 22.32 +/- 0.98 22.13 +/- 0.69 Pass DW-2935, 2936 5/2712005 1-131 0.51 +/- 0.34 0.56 +/- 0.30 0.53 +/- 0.23 Pass SWU-3103. 3104 6/1/2005 Gr. Beta 3.29 +/- 0.49 3.75 f 0.66 3.52 +/- 0.41 Pass G-2958, 2959 6/1/2005 Be-7 1.06 +/- 0.40 1.21 +/- 0.28 1.14 +/- 0.24 Pass G-2958, 2959 b 6/1/2005 Gr. Beta 8.06

• 0.07 7.79 +/- 0.07 7.93 +/- 0.05 Fall G-2958, 2959 6/11/2005 K-40 5.93 +/- 0.73 6.05 +/- 0.28 5.99 f 0.39 Pass BS-4089. 4090 6/3/2005 Co-60 0.11

• 0.02 0.10 +/- 0.02 0.11

• 0.02 Pass BS-4089, 4090 6/3/2005 Cs-I 37 0.60

• 0.05 0.62 +/- 0.05 0.61 +/- 0.04 Pass DW-50527, 8 6/8/2005 Gr. Alpha 11.58 i 1.31 13.52 +/- 1.43 12.55 +/- 0.97 Pass VE-3278, 3279 6/1312005 K-40 6.34 +/- 0.59 7.29 +/- 0.68 6.81 +/- 0.45 Pass MI-3299, 3300 6/15/2005 K-40 1215.40

• 110.20 1250.70 +/- 106.70 1233.05 +/- 76.70 Pass BS-3348, 3349 6/17/2005 Co-60 0.20

• 0.04 0.22 +/- 0.04 0.21 +/- 0.03 Pass BS-3348, 3349 6/17/2005 Cs-137 2.59

• 0.10 2.51 +/- 0.07 2.55 +/- 0.06 Pass BS-3348, 3349 6/17/2005 K-40 11.57 t 0.81 11.82 +/- 0.76 11.69 +/- 0.56 Pass DW-3486. 3487 6/28/2005 Gr. Beta 0.97 i 0.54 1.67 +/- 0.58 1.32 +/- 0.40 Pass SWT-3631, 3632 6/28/2005 Gr. Beta 2.12

• 0.53 1.62 +/- 0.56 1.87 +/- 0.39 Pass W-3507. 3508 6/29/2005 H-3 38717 +/- 382 38017 +/- 535 38367 +/- 329 Pass VE-3555, 3556 6/29/2005 Gr. Beta 7.53 +/- 0.18 7.56 +/- 0.18 7.55 i 0.13 Pass VE-3555, 3556 6/29/2005 K-40 5.70

• 0.52 5.64 +/- 0.53 5.67 +/- 0.37 Pass AP-3781, 3782 6/29/2005 Be-7 0.09

• 0.02 0.08 +/- 0.02 0.09 +/- 0.01 Pass LW-3610, 3611 6/30/2005 Gr. Beta 1.37 +/- 0.35 1.40 +/- 0.36 1.39 +/- 0.25 Pass SW-3760, 3761 6/30/2005 Gr. Beta 9.70 +/- 1.63 9.77

• 1.61 9.73 +/- 1.15 Pass E-3654, 3655 7/5/2005 Gr. Beta 1.76 +/- 0.07 1.69 +/- 0.07 1.72 +/- 0.05 Pass E-3654, 3655 7/5/2005 K-40 1.49 +/- 0.25 1.05 +/- 0.21 1.27 +/- 0.16 Pass MI-3676, 3677 7/5/2005 K-40 1383.90 +/- 116.20 1428.20 +/- 125.40 1406.05 +/- 85.48 Pass DW-3739, 3740 7/5/2005 1-131 1.93 +/- 0.24 2.18 +/- 0.23 2.05 +/- 0.17 Pass W-3808, 3809 7/6/2005 H-3 4189.61 +/- 196.68 4438.33 +/- 201.39 4313.97 +/- 140.75 Pass DW-3938, 3939 7/8/2005 1-131 1.11 +/- 0.30 1.26 +/- 0.31 1.18 +/- 0.22 Pass VE-3896, 3897 7/12/2005 K-40 3.44 +/- 0.62 3.60 +/- 0.36 3.52 +/- 0.36 Pass MI-3963. 3964 7/1312005 K-40 1438.70 +/- 102.80 1351.80 +/- 100.80 1395.25 +/- 71.99 Pass DW-4068. 4069 7/15/2005 1-131 0.64 +/- 0.27 0.91 +/- 0.28 0.78 +/- 0.20 Pass A5-2

TABLE A-5. In-House Duplicate' Samples Concentration (pCUL)

Averaged Lab Code Date Analysis First Result Second Result Result Acceptance VE-4290, 4291 7/26/2005 Gr. Alpha 0.11 +/-0.04 0.05 +/- 0.03 0.08 +/- 0.03 Pass VE-4290, 4291 7/26/2005 Gr. Beta 4.55 0.13 4.69 +/- 0.14 4.62 +/- 0.09 Pass SWU-4311, 4312 7/26/2005 Gr. Beta 2.62 +/- 0.64 1.67 +/- 0.37 2.15 +/- 0.37 Pass SWU-4311, 4312 7/26/2005 H-3 192.30 +/- 92.90 304.60 +/- 97.40 248.45 +/- 67.30 Pass G-4383, 4384 8t1/2005 Be-7 2.06

• 0.49 1.76 +/- 0.29 1.91

• 028 Pass G-4383, 4384 8/1/2005 Gr. Beta 8.76 +/- 0.22 8.40 +/- 0.20 8.58 +/- 0.15 Pass G-4383, 4384 8/1/2005 K-40 6.74 +/- 0.64 6.88 +/- 0.92 6.81 +/- 0.56 Pass MI-4425, 4426 8/1/2005 K-40 1358.10 +/- 169.20 1267.90 +/- 164.40 1313.00 +/- 117.96 Pass TD-4446, 4447 8/1/2005 H-3 563.00 +/- 252.00 529.00 +/- 251.00 546.00 +/- 177.84 Pass SL-4473, 4474 8/4/2005 Gr. Beta 5.44 +/- 0.48 4.57 +/- 0.42 5.00 +/- 0.32 Pass SL-4473, 4474 8/4/2005 K-40 2.91 +/- 0.83 2.74 +/- 0.54 2.82 +/- 0.49 Pass VE-4532. 4533 8/5/2005 Gr. Beta 31.20 +/- 1.20 31.70 +/- 1.20 31.45 +/- 0.85 Pass VE-4618, 4619 819/2005 Gr. Alpha 0.09 +/- 0.05 0.09 +/- 0.04 0.09 +/- 0.03 Pass VE-4618, 4619 8/9/2005 Gr. Beta 4.60

• 0.13 4.54 +/- 0.12 4.57 +/- 0.09 Pass VE-4618, 4619 8/9/2005 K-40 4.19 +/- 0.46 4.34 +/- 0.47 4.27 +/- 0.33 Pass F-4639, 4640 8/11/2005 Cs-137 0.05 +/- 0.02 0.05 +/- 0.02 0.05 +/- 0.02 Pass F-4639, 4640 8/11/2005 Gr. Beta 3.33 +/- 0.11 3.37 +/- 0.10 3.35 +/- 0.07 Pass F-4639, 4640 8/11/2005 K-40 2.62 +/- 0.57 2.58 +/- 0.59 2.60 +/- 0.41 Pass DW-4730, 4731 8/12/2005 1-131 0.82 +/- 0.23 0.83 +/- 0.25 0.83 +/- 0.17 Pass MI-4855, 4856 8/28/2005 K-40 1341.50 f 107.70 1340.00 +/- 114.70 1340.75 +/- 78.67 Pass MI-4855, 4856 8/28/2005 Sr-90 0.77 +/- 0.37 0.87 +/- 0.37 0.82 +/- 0.26 Pass MI-4945, 4946 8/31/2005 K-40 1388.90 +/- 158.90 1307.50 +/- 165.20 1348.20 +/- 114.61 Pass MI-4945, 4946 8/31/2005 Sr-90 0.67 +/- 0.34 0.82 +/- 0.36 0.75 +/- 0.25 Pass TD-4921, 4922 9/1/2005 H-3 5737.00 +/- 266.00 5860.00 +/- 269.00 5798.50 +/- 189.15 Pass VE-4900, 4901 9/2/2005 Gr. Beta 3.40 0.06 3.51 +/- 0.06 3.45 +/- 0.04 Pass VE-4900, 4901 9/2/2005 K-40 2.15 +/- 0.27 2.27 +/- 0.24 2.21 +/- 0.18 Pass DW-50769, 50770 9/2/2005 Gr. Alpha 6.17 +/- 1.42 6.08 +/- 1.46 6.13 +/- 1.02 Pass VE-4990, 4991 9/612005 K-40 18.81 +/- 1.12 19.52 +/- 0.86 19.17 +/- 0.71 Pass Mi-5011, 5012 9/8/2005 K-40 1584.00 f 194.00 1707.60 +/- 173.00 1645.80 +/- 129.97 Pass VE-5119, 5120 9/12/2005 Gr. Alpha 0.10 +/- 0.06 0.09 +/- 0.05 0.10 0.04 Pass VE-5119, 5120 9/12/2005 Gr. Beta 6.05 +/- 0.18 5.92 +/- 0.17 5.98 +/- 0.12 Pass VE-5119, 5120 9/12/2005 K-40 4.61 +/- 0.46 4.74 +/- 0.69 4.68 +/- 0.41 Pass LW-5361, 5362 9/12/2005 Gr. Beta 1.09 +/- 0.33 1.18 +/-0.34 1.13 f 0.24 Pass SW-5098, 5099 9/1312005 1-131 0.44 +/- 0.22 0.31 +/-0.20 0.38 +/-0.15 Pass LW-5178, 5179 9/14/2005 Gr. Beta 2.92 +/- 0.56 2.95 +/- 0.59 2.93 +/- 0.41 Pass DW-5239, 5240 9/16/2005 1-131 0.45 +/- 0.27 0.55 +/- 0.29 0.50 +/- 0.20 Pass CF-5432, 5433 9119/2005 Be-7 0.91 +/- 0.40 0.64 +/- 0.30 0.78 +/- 0.25 Pass CF-5432, 5433 9119/2005 K-40 1.43 +/- 0.34 1.38 +/- 0.43 1.41 +/- 0.27 Pass MI-5292, 5293 9/21/2005 K-40 1228.80 f 78.13 1297.00 +/- 81.03 1262.90 +/- 56.28 Pass BS-5340, 5341 9/2312005 Be-7 1286.10 +/- 550.80 1222.90 t 394.40 1254.50 +/- 338.72 Pass BS-5340, 5341 9/2312005 Cs-137 726.97 f 76.24 677.49 +/- 70.03 702.23 +/- 51.76 Pass A5-3

TABLE A-5. In-House "Duplicatea Samples Concentration (pCVL)

Averaged Lab Code Date Analysis First Result Second Result Result Acceptance BS-5340, 5341 9123/2005 K-40 12404

• 1154 13033 +/-983 12719 +/- 758 Pass DW-5382, 5383 9/2312005 1-131 0.79

• 0.31 0.53 +/- 0.31 0.66

• 0.22 Pass MI-5405, 5406 9/27/2005 K-40 1324.80

• 112.20 1366.80 +/- 99.44 1345.80

• 74.96 Pass AP-5769, 5770 9/27/2005 Be-7 0.08 +/- 0.01 0.09 +/- 0.02 0.08

• 0.01 Pass AP-5983, 5984 9/27/2005 Be-7 0.08

• 0.01 0.08 +/- 0.01 0.08 +/- 0.01 Pass AP-5878, 5879 9/2912005 Be-7 0.06

• 0.01 0.07 +/- 0.01 0.07 +/- 0.01 Pass G-5526, 5527 10/3/2005 Be-7 4.03

• 0.62 4.07 +/- 0.80 4.05 +/- 0.51 Pass G-5526, 5527 1013/2005 Gr. Beta 8.10 +/- 0.30 8.80 +/- 0.40 8.41 +/- 0.24 Pass G-5526, 5527 10/3/2005 K-40 4.93

• 0.67 6.00 +/- 0.72 5.47 +/- 0.49 Pass VE-5721, 5722 10/10/2005 Gr. Alpha 0.07

• 0.05 0.08 +/- 0.06 0.08 +/- 0.04 Pass VE-5721, 5722 10/10/2005 Gr. Beta 5.09

• 0.15 5.00 +/- 0.16 5.05 +/- 0.11 Pass VE-5721, 5722 10/10/2005 K-40 4.27

• 0.43 4.20 *0.34 4.23 +/- 0.27 Pass CF-5695, 5696 10/11/2005 Be-7 2.70 +/- 0.37 2.80 +/-0.34 2.75

• 0.25 Pass CF-5695, 5696 10/11/2005 K-40 11.79

• 0.86 13.11 *0.68 12.45 +/- 0.55 Pass LW-6129, 6130 10/11/2005 Gr. Beta 1.34

• 0.25 1.85

• 0.29 1.59 +/- 0.19 Pass LW-6129, 6130 10/11/2005 H-3 304.35

• 95.31 369.23

• 97.88 336.79 +/- 68.31 Pass DW-50844. 5 10/11/2005 Gr. Beta 5.30

• 1.50 4.20 +/- 1.40 4.75 +/- 1.03 Pass LW-5748, 5749 ' 10/12/2005 Gr. Beta 1.09

• 0.25 1.89

• 0.28 1.49 +/- 0.19 Fail AP-6485, 6486 10/20/2005 Be-7 0.10

• 0.03 0.09 +/- 0.03 0.09 +/- 0.02 Pass SWU-6156, 6157 10/25/2005 Gr. Beta 4.69

• 1.34 4.18 +/- 1.34 4.44 +/- 0.95 Pass VE-6186, 6187 10/26/2005 K-40 2.90

• 0.49 2.83 +/- 0.51 2.87 +/- 0.35 Pass LW-6203, 6204 10/27/2005 Gr. Beta 2.92

• 0.62 3.09 +/- 0.66 3.01 +/- 0.45 Pass SO-6270, 6271 10/2812005 Cs-137 0.33

• 0.03 0.34 +/- 0.04 0.33 +/- 0.03 Pass SO-6270. 6271 10/28/2005 Gr. Beta 26.85

• 2.78 22.25 +/- 2.41 24.55 *1.84 Pass SO-6270, 6271 10/28/2005 K-40 13.67

• 0.74 14.02 +/- 0.76 13.85 +/- 0.53 Pass TD-6320, 6321 11/1/2005 H-3 444202

• 1770 446633

• 1775 445418 +/- 1253 Pass SO-6605, 6606 11/11/2005 Gr. Beta 18.22

• 2.23 18.47 +/- 2.22 18.35 +/- 1.57 Pass CF-6509. 6510 11/14/2005 K-40 0.85

• 0.14 0.99 +/- 0.22 0.92 +/- 0.13 Pass SW-6638, 6639 11/2212005 1-131 0.95 +/- 0.35 0.67

• 0.31 0.81 +/- 0.23 Pass SO-6887, 6888 11/2212005 Gr. Alpha 6.80

• 2.92 10.27

• 3.26 8.53 +/- 2.19 Pass SO-6887, 6888 11/2212005 Gr. Beta 19.27

• 2.16 18.43

• 2.21 18.85 +/- 1.54 Pass SO-6887, 6888 11/22/2005 K-40 14.29

• 1.11 13.78

• 0.78 14.03 +/- 0.68 Pass SWT-6721, 6722 11/29/2005 Gr. Beta 0.98

• 0.31 0.87

• 0.31 0.93 +/- 0.22 Pass VE-6775, 6776 11/29/2005 Gr. Beta 12.75 +/- 0.28 13.16 i 0.21 12.96 +/- 0.18 Pass LW-6743, 6744 11/30/2005 Gr. Beta 3.19

• 0.47 2.50 *0.44 2.85 +/- 0.32 Pass DW-51023, 4 12/2/2005 Gr. Alpha 0.55

• 1.40 2.21

• 1.31 1.38 +/- 0.96 Pass SWT-7282, 7283 12/27/2005 Gr. Beta 1.62

• 0.37 1.85

• 0.38 1.74 +/- 0.27 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 pCUL, except for air filters (pCI/Fllter), food products, vegetation, soil, sediment (pCi/g).

b 600 minute count time or longer, resulting in lower error.

C Recount of W-5748, 2.38

• 0.85 pCUL Averaged result; 2.14 +/- 0.45 pCVL A5-4

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

Concentration b Known Control Lab Code' Date Analysis Laboratory result Activity Limits d Acceptance STW-1045 01t01/05 Gr. Alpha 0.45 i 0.10 0.53 0.00 - 1.05 Pass STW-1045 01/01/05 Gr. Beta 1.90 i 0.10 1.67 0.84 - 2.51 Pass STW-1046 01/01/05 Am-241 1.62 +/- 0.12 1.72 1.20 - 2.24 Pass STW-1046 01/01/05 Co-57 239.40 +/- 1.20 227.00 158.90 - 295.10 Pass STW-1046 01/01/05 Co-60 248.70 +/- 1.00 251.00 175.70 - 326.30 Pass STW-1046 01/01/05 Cs-134 115.50 +/- 1.80 127.00 88.90 -165.10 Pass STW-1046 01/01/05 Cs-137 328.50 +/-1.70 332.00 232.40 -431.60 Pass STW-1046 01/01/05 Fe-55 64.90 f 7.00 75.90 53.13 - 98.67 Pass STW/-1046 01/01/05 H-3 304.00 f 9.70 280.00 196.00 - 364.00 Pass STW-1046 01/01/05 Mn-54 334.80 f 1.90 331.00 231.70 - 430.30 Pass STW-1046 01/01t05 Ni-63 7.10 +/- 1.60 9.00 0.00 - 20.00 Pass STW-1046 01/01/05 Pu-238 0.01 +/-0.02 0.02 0.00 -1.00 Pass ST1W-1046 01/01/05 Pu-239/40 2.50 +/- 0.14 2.40 1.68 - 3.12 Pass STW-1046 01/01/05 Sr-90 0.70 +/- 0.80 0.00 0.00 - 5.00 Pass STW-1046 01/01/05 Tc-99 43.20 +/- 1.40 42.90 30.03 - 55.77 Pass STW-1046 01/01/05 U-233t4 3.31

• 0.20 3.24 2.27 -4.21 Pass STW-1046 01/01/05 U-238 3.38

• 0.20 3.33 2.33 -4.33 Pass STW-1046 01/01/05 Zn-65 538.40 +/- 3.80 496.00 347.20 - 644.80 Pass STVE-1047 01t01/05 Co-57 10.60 f 0.20 9.88 6.92 - 12.84 Pass STVE-1047 01t01/05 Co-60 3.00 +/- 0.20 3.15 2.21 - 4.10 Pass STVE-1047 01/01t05 Cs-134 4.80

• 0.40 5.00 3.50 - 6.50 Pass STVE-1047 01/01105 Cs-1 37 4.10

• 0.30 4.11 2.88 - 5.34 Pass STVE-1047 01101t05 Mn-54 5.10 +/- 0.30 5.18 3.63 - 6.73 Pass STVE-1047 01t01/05 Zn-65 6.20 +/- 0.50 6.29 4.40 - 8.18 Pass STSO-1048 01/01105 Am-241 96.60 +/- 10.00 109.00 76.30 - 141.70 Pass STSO-1048 01101/05 Co-57 264.00 +/- 2.00 242.00 169.40 - 314.60 Pass STSO-1048 01t01/05 Co-60 226.50 +/- 2.20 212.00 148.40 - 275.60 Pass STSO-1048 01t01t05 Cs-134 760.60 +/- 3.70 759.00 531.30 - 986.70 Pass STSO-1048 01/01/05 Cs-137 336.20 +/- 3.60 315.00 220.50 -409.50 Pass STSO-1048 01/01/05 K-40 663.70 +/- 18.00 604.00 422.80 - 785.20 Pass STSO-1048 01/01/05 Mn-54 541.30 +/- 3.90 485.00 339.50 - 630.50 Pass STSO-1048 01/01/05 NI-63 924.30 +/- 17.20 1220.00 854.00 - 1586.00 Pass STSO-1048 01/01/05 Pu-238 0.60 $ 0.80 0.48 0.00 - 1.00 Pass STSO-1048 01/01t05 Pu-239140 78.00 +/- 4.80 89.50 62.65 - 116.35 Pass STSO-1048 01/01/05 Sr-90 514.60 +/- 18.70 640.00 448.00 - 832.00 Pass STSO-1048 01/01/05 U-233t4 47.90

• 4.00 62.50 43.75 - 81.25 Pass STSO-1048 01/01/05 U-238 226.30 +/- 8.60 249.00 174.30 - 323.70 Pass STSO-1048 01/01/05 Zn-65 851.30

• 7.30 810.00 567.00 - 1053.00 Pass STAP-1050 01/01/05 Gr. Alpha 0.11 i 0.03 0.23 0.00 - 0.46 Pass STAP-1050 01t01/05 Gr. Beta 0.38 i 0.05 0.30 0.15 - 0.45 Pass A6-1

TABLE A-6. Department of Energys Mixed Analyte Performance Evaluation Program (MAPEPr.

Concentration b Known Control Lab Codec Date Analysis Laboratory result Activity Limits d Acceptance STAP-1049 01/01/05 Am-241 0.10 i 0.04 0.10 0.07 -0.13 Pass STAP-1049 01/01/05 Co-57 4.76 +/- 0.64 4.92 3.44 - 6.40 Pass STAP-1049 01/01/05 Co-60 2.84 +/- 0.22 3.03 2.12 - 3.94 Pass STAP-1049 01/01/05 Cs-1 34 3.54 i 0.37 3.51 2.46 -4.56 Pass STAP-1049 01/01/05 Cs-137 2.20 i 0.27 2.26 1.58 - 2.94 Pass STAP-1049 01/01/05 Mn-54 3.15 i 0.21 3.33 2.33 -4.33 Pass STAP-1049 01/01/05 Pu-238 0.16

• 0.04 0.20 0.14 - 0.25 Pass STAP-1049 01/01/05 Pu-239/40 0.17

• 0.02 0.17 0.14 - 0.25 Pass STAP-1 049 a 01/01/05 Sr-90 2.24 +/- 0.34 1.35 0.95 - 1.76 Fall STAP-1049 01/01/05 U-233/4 0.34 +/- 0.02 0.34 0.24 - 0.44 Pass STAP-1049 01/01/05 U-238 0.35 +/- 0.02 0.35 0.25 - 0.46 Pass STAP-1049 01/01/05 Zn-65 3.12 +/- 0.15 3.14 2.20 - 4.08 Pass STW-1061 07/01/05 Am-241 2.21 +/- 0.13 2.23 1.56 - 2.90 Pass STW-1061 07/01/05 Co-57 293.20 +/- 7.30 272.00 190.40 - 353.60 Pass STW-1061 07/01/05 Co-60 275.70 +/- 1.30 261.00 182.70 -339.30 Pass STW-1061 07/01/05 Cs-134 171.80 +/- 4.00 167.00 116.90 -217.10 Pass STW-1061 07/01/05 Cs-137 342.10 +/- 2.20 333.00 233.10 -432.90 Pass STW-1061 07/01/05 Fe-55 167.80 +/- 9.30 196.00 137.20 - 254.80 Pass STW-1061 07/01/05 H-3 514.20 +/- 12.60 527.00 368.90 -685.10 Pass STW-1061 07/01/05 Mn-54 437.00 +/- 2.50 418.00 292.60 -543.40 Pass STW-1061 07/01/05 Ni-63 105.10 +/- 3.60 100.00 70.00 - 130.00 Pass STW-1061 07/01/05 Pu-238 1.64 +/- 0.12 1.91 1.34 -2.48 Pass STW-1061 07/01/05 Pu-239/40 2.32 +/- 0.13 2.75 1.93 - 3.58 Pass STW-1061 07/01/05 Sr-90 9.20 +/- 1.30 8.98 6.29-11.67 Pass STW-1061 07/01/05 Tc-99 72.30 +/- 2.30 66.50 46.55 - 86.45 Pass STW-1061 07/01/05 U-233/4 4.11 +/- 0.18 4.10 2.87 - 5.33 Pass STW-1061 07/01/05 U-238 4.14 +/- 0.18 4.26 2.98 -5.54 Pass STW-1061 07/01/05 Zn-65 364.60 +/- 4.90 330.00 231.00 -429.00 Pass STW-1062 07/01/05 Gr. Alpha 0.57 +/- 0.05 0.79 0.21 - 1.38 Pass STW-1062 07/01/05 Gr. Beta 1.36

• 0.05 1.35 0.85 -1.92 Pass STSO-1063' 07/01/05 An-241 48.40 +/- 3.90 81.10 56.77 - 105.43 Fall STSO-1063 07/01/05 Co-57 608.30

• 2.80 524.00 366.80 -681.20 Pass STSO-1063 07/01/05 Co-60 322.70 +/- 2A0 287.00 200.90 -373.10 Pass STSO-1063 07/01/05 Cs-134 632.10 i 5.20 568.00 397.60 - 738.40 Pass STSO-1063 07101/05 Cs-137 512.40 +/- 4.20 439.00 307.30 - 570.70 Pass STSO-1063 07/01/05 K-40 720.50

• 19.00 604.00 422.80 - 785.20 Pass STSO-1063 07/01/05 Mn-54 516.80 +/- 5.10 439.00 307.30 - 570.70 Pass STSO-1063 07/01/05 Ni-63 366.50 +/- 13.30 445.00 311.50 -578.50 Pass STSO-1063 07/01/05 Pu-238 68.80 +/- 15.00 60.80 42.56 -79.04 Pass STSO-1063 07/01/05 Pu-239/40 0.00

• 0.00 0.00 0.00 - 0.00 STSO-1063 07/01/05 Sr-90 602.90 i 17.20 757.00 529.90 -984.10 Pass STSO-1063 07101/05 U-23314 61.50 +/- 1.00 52.50 36.75 - 68.25 Pass STSO-1063 07/01105 U-238 164.50 +/- 16.70 168.00 117.60 -218.40 Pass STSO-1063 07/01/05 Zn-65 874.70 +/- 8.40 823.00 576.10 - 1070.00 Pass A6-2

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

Concentration b Known Control Lab Codec Date Analysis Laboratory result Activity Limits d Acceptance STVE-1064 07/01105 Arn-241 0.18 i 0.03 0.23 0.16 - 0.30 Pass STVE-1064 07/01/05 Co-57 15.90 +/- 0.20 13.30 9.31 - 17.29 Pass STVE-1064 07/01/05 Co-60 4.80 i 0.10 4.43 3.10 - 5.76 Pass STVE-1064 07/01/05 Cs-134 4.60 i 0.20 4.09 2.86 - 5.32 Pass STVE-1064 07/01/05 Cs-137 5.90 i 0.30 5.43 3.80 - 7.06 Pass STVE-1064 07/01/05 Mn-54 7.20 +/- 0.20 6.57 4.60 - 8.54 Pass STVE-1064 07/01/05 Pu-238 0.04 +/- 0.02 0.00 0.00 -1.00 Pass STVE-1064 07/01/05 Pu-239/40 0.13 +/- 0.02 0.16 0.11 - 0.21 Pass STVE-1064 07/01/05 Sr-90 2.80 +/- 0.30 2.42 1.69 - 3.15 Pass STVE-1064 07/01/05 U-233/4 0.28 +/- 0.03 0.33 0.23 - 0.43 Pass STVE-1064 07/01/05 U-238 0.33 +/- 0.04 0.35 0.24 - 0.45 Pass STVE-1064 07/01/05 Zn-65 11.00 +/- 0.50 10.20 7.14 - 13.26 Pass STAP-1065 07101105 Gr. Alpha 0.30

• 0.04 OA8 0.00 - 0.80 Pass STAP-1065 07/01/05 Gr. Beta 0.97 +/- 0.06 0.83 0.55 - 1.22 Pass STAP-1066 07/01105 Am-241 0.14 +/- 0.03 0.16 0.11 - 0.21 Pass STAP-1066 07101105 Co-57 5.81 +/- 0.17 6.20 4.34 -8.06 Pass STAP-1066 07/01/05 Co-60 2.79 +/- 0.14 2.85 2.00 - 3.71 Paps STAP-1066 07/01/05 Cs-134 3.67 +/- 0.12 3.85 2.70 - 5.01 Pass STAP-1066 07/01/05 Cs-137 2.93 +/- 0.23 3.23 2.26 -4.20 Pass STAP-1066 07/01/05 Mn-54 4.11 +/- 0.26 4.37 3.06 - 5.68 Pass STAP-1066 07/01/05 Pu-238 0.11 +/- 0.02 0.10 0.07 - 0.13 Pass STAP-1066 07/01/05 Pu-239/40 0.10 $ 0.01 0.09 0.06 - 0.12 Pass STAP-1066 07101/05 Sr-90 2.25 +/- 0.29 2.25 1.58 - 2.93 Pass STAP-1066 07/01/05 U-233/4 0.28 +/- 0.02 0.27 0.19 - 0.35 Pass STAP-1066 07/01/05 U-238 0.28 +/- 0.02 0.28 0.20 - 0.37 Pass STAP-1066 07/01/05 Zn-65 4.11 *0.26 4.33 3.06 - 5.68 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) as requested by the Department of Energy.

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.

The strontium carbonate precipitates were redissolved and processed. The average of the three analyses was 1.341 although the recovery was only 30%. The result of a new analysis was 1.56 pCi/L.

Incorrect sample weight used in calculation. Result of recalculation: 97.0

• 7.8 Bq/kg.

A6-3

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 2005 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Nonroutine (Unit of Analysis Performed Detection ** Mean (f) Distance and ** Mean (f) **Mean (f) Reported Measurement) (LLD) ** Range Direction **Range ** Range Measurements **

Air Particulate Station 48 (pCi/M 3 ) Gross Beta (318) 0.01 0.030 (265/265) 37 0.031 (53/53) 0.029 (53/53) 0 (0.014-0.055) 2.0 miles NNW (0.014-0.055) (0.014-0.047)

Gamma (24)

Be-7 - 0.080 (20/20) 49 0.089 (4/4) 0.076 (4/4) 0 (0.057-0.107) 0.8 miles NNE (0.059-0.107) (0.056-0.095) 1-131 (318) 0.07 - (0/265) N/A N/A - (0/53) 0 External Stations 39 & 48 Radiation (mR/day) TLD (376) - 0.271 (360/360) 1i 0.301 (8/8) 0.265 (16/16) 0 (0.152-0.399) 1.4 miles N (0.217-0.389) (0.201-0.344)

Surface Water JRR (pCi/) Gamma (24) -(0/12) N/A N/A -(0/12) 0 Tritium (24) 3000 12855 (12/12) SP 12855 (12/12) 219 (1/12) 0 (9533-15907) 3.2 miles SSE (9533-15907)

Ground Water B-12 (pCiA) 1-131 (25) I -(0/21) N/A N/A -(0/4) 0 Gamma (25) -(0/21) N/A N/A -(0/4) 0 Tritium (25) 2000 211 (2/21) C-49 217 (1/5) -(0/4) 0 (204-217) 2.8 miles SW 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 2005 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Nonroutine (Unit of Analysis Performed Detection ** Mean (f) Distance and ** Mean (f) **Mean (f) Reported Measurement) (LLD) ** Range Direction ** Range ** Range Measurements**

Drinking BW-15 Water 1-131 (36) I -(0-24) N/A N/A -(0/12) 0 (pCiA)

Gross Beta (36) 4 3.6 (24/24) 10-DW 3.7 (12/12) 3.9 (12/12) 0 (1.8-5.5) 26.1 miles SSE (1.8-5.5) (1.9-6.8)

Gamma (36) -(0/24) N/A N/A -(0/12) 0 Tritium (12) 2000 225 (2/8) NF-DW 243 (1/4) 245 (1/4) 0 (207-243) 17.5 miles SSE Shoreline Gamma (4) JRR Sediment (pCVkg dry) K-40 10667.5 (2/2) DC 10667.5 (2/2) 10244.7 (2/2) 0 (10382-10953) 0.8 miles WNW (10382-10953) (8643-11846)

Cs-137 180 -(0-2) N/A N/A 69.3 (2/2) 0 (56.7-81.9)

Fish Gamma (16) JRR (pCi/kg wet)

K-40 3307 (10/10) WCL 3307 (10/10) 3100 (6/6) 0 (2687-4329) 0.6 miles (2687-4329) (2804-3298)

Tritium (16) 7699.7 (10/10) WCL 7699.7 (10/10) -(0/6) 0 (6281-9479) 0.6 miles (6281-9479)

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 Generatina Stati on Docket No.: 50-482 Location of Facility: Coffey County. Kansas Reporting Period: Annual 2005 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 Gamma (21) D-1 & D-2 Garden (pCi/kg wet) Be-7 365.6 (8/12) G-1 397.6 (4/5) 443.8 (6/9) 0 (171.6-713.9) 1.6 miles SE (203.5-713.9) (177.3-1025.4)

K-40 4728.9 (12/12) G-1 5382.3 (5/5) 3623.1 (9/9) 0 (2768.7-6745.5) 1.6 miles SE (3353.7-6745.5) (2563.2-4999.4)

NR-U1 Crops Gamma (4)

(pCikg wet)

K-40 7495.9 (3/3) NR-D2 9262.0 (2/2) 2308.8 (1/1) 0 (3128-15396) 11.5 miles S (3128-15396)

Bottom Gamma (7) JRR Sediment (pCi/kg dry)

K-40 12593.7 (5/5) DC 13916.0 (2/2) 18138.0 (2/2) 0 (9050-14377) 0.9 miles WNW (13455-14377) (16987-19289)

Co-60 171.3 (2/5) DC 171.3 (2/2) - (0/2) 0 (159.7-182.8) 0.9 miles WNW (159.7-182.8)

Cs-1 37 151.1 (4/5) DC 221.7 (2/2) 141.1 (2/2) 0 (77.3-234.4) 0.9 miles WNW (208.9-234.4) (127.6-154.5)

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 2005 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 ( **Mean (e Reported Measurement) (LLD) ** Range Direction ** Range ** Range Measurements **

Aquatic Gamma (2) No Control Vegetation (pCi/kg wet) Be-7 909.3 (2/2) EEA 1302.3 (1/1) 0 (516.3-1302.3) 3.0 miles NNW K-40 2336.1 (2/2) EEA 2517.7 (1/1) 0 (2154.5-2517.7) 3.0 miles NNW Terrestrial Gamma (1) No Control Vegetation (pCi/kg wet) Be-7 868.3 (1/1) EEA 868.3 (1/1) 0 3.0 miles NNW K-40 7677.2 (1/1) EEA 7677.2 (1/1) 3.0 miles NNW Soil Gamma (2) No Control (pCi/kg dry)

K-40 10893.7 (2/2) EEA 12505 (1/1) 0 (9282-12505) 3.0 miles NNW Cs-137 557.5 (1/2) EEA 557.5 (1/1) 0 3.0 miles NNW Page B-5

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

Air Particulate and Charcoal Filters Location: 002 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date m3 (pCiIm 3 ) (pCiIm 3 ) Analysis 28-DEC-04 04-JAN-05 300 0.020+/- 0.003 < 0.016 04-JAN-05 12-JAN-05 352 0.044+/- 0.004 < 0.012 12-JAN-05 20-JAN-05 347 0.036+/- 0.004 < 0.019 20-JAN-05 26-JAN-05 258 0.029+/- 0.004 < 0.017 26-JAN-05 03-FEB-05 347 0.030+/- 0.003 < 0.016 03-FEB-05 11-FEB-05 339 0.028+/- 0.003 < 0.011 11-FEB-05 17-FEB-05 262 0.030+/- 0.004 < 0.016 17-FEB-05 25-FEB-05 339 0.037+/- 0.004 < 0.020 25-FEB-05 04-MAR-05 303 0.028+/- 0.004 < 0.016 04-MAR-05 09-MAR-05 217 0.021+!- 0.005 < 0.020 04-MAR-05 09-MAR-05 217 0.018+/- 0.004 Duplicate 09-MAR-05 17-MAR-05 349 0.021+/- 0.003 < 0.018 17-MAR-05 24-MAR-05 302 0.020+/- 0.003 < 0.007 24-MAR-05 30-MAR-05 240 0.021+!- 0.004 < 0.014 30-MAR-05 06-APR-05 280 0.019+/- 0.003 < 0.016 06-APR-05 13-APR-05 287 0.021+!- 0.003 < 0. 009 13-APR-05 20-APR-05 287 0.022+!- 0.004 < 0.014 20-APR-05 27-APR-05 292 0.017+/- 0.003 < 0.011 27-APR-05 04-MAY-05 299 0.020+/- 0.003 < 0.016 04-MAY-05 11-MAY-05 297 0.027+/- 0.003 < 0.009 11-MAY-05 18-MAY-05 298 0.020 +/- 0.004 < 0.010 18-MAY-05 25-MAY-05 288 0.023+/- 0.004 < 0.014 25-MAY-05 01-JUN-05 315 0.023+/- 0.003 < 0.009 01-JUN-05 08-JUN-05 296 0.023+/- 0.004 < 0.014 08-JUN-05 15-JUN-05 307 0.016+/- 0.003 < 0.024 15-JUN-05 22-JUN-05 301 0.027+/- 0.004 < 0.019 22-JUN-05 28-JUN-05 261 0.042+/- 0.005 < 0.019 28-JUN-05 06-JUL-05 331 0.028+/- 0.003 < 0.015 06-JUL-05 13-JUL-05 293 0.038+/- 0.004 < 0.013 13-JUL-05 20-JUL-05 303 0.028+/- 0.004 < 0.010 13-JUL-05 20-JUL-05 303 0.028+/- 0.004 Duplicate 20-JUL-05 27-JUL-05 305 0.018+/- 0.003 < 0.012 27-JUL-05 03-AUG-05 284 0.034+/- 0.004 < 0.017 03-AUG-05 10-AUG-05 310 0.039+/- 0.004 < 0.018 10-AUG-05 17-AUG-05 303 0.023+/- 0.004 < 0.011 17-AUG-05 24-AUG-05 302 0.026+/- 0.004 < 0.019 24-AUG-05 31-AUG-05 287 0.030+/- 0.004 < 0.016 31-AUG-05 07-SEP-05 304 0.045+/- 0.004 < 0.024 07-SEP-05 14-SEP-05 290 0.047+/- 0.005 < 0.017 14-SEP-05 21-SEP-05 302 0.029+/- 0.004 < 0.015 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -I

Air Particulate and Charcoal Filters Location: 002 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date  : m3 (pCiIm 3 ) (pCI/m3 ) Analysis 21-SEP-05 29-SEP-05 340 0.030+/- 0.004 < 0.021 29-SEP-05 05-OCT-05 258 0.027+/- 0.004 < 0.015 29-SEP-05 05-OCT-05 258 0.024+/- 0.004 Duplicate 05-OCT-05 12-OCT-05 300 0.023+/- 0.003 < 0.008 12-OCT-05 19-OCT-05 294 0.050+/- 0.005 < 0.017 19-OCT-05 28-OCT-05 389 0. 020 +/- 0.003 < 0.016 28-OCT-05 02-NOV-05 206 0.037+/- 0.006 < 0.021 02-NOV-05 10-NOV-05 345 0.042+/- 0.004 < 0.014 10-NOV-05 17-NOV-05 313 0.024+/- 0.004 < 0.014 17-NOV-05 23-NOV-05 264 0.024+/- 0.004 < 0.014 23-NOV-05 30-NOV-05 292 0.020+/- 0.004 < 0.012 30-NOV-05 06-DEC-05 265 0.048+/- 0.005 < 0.016 06-DEC-05 14-DEC-05 344 0.032+/- 0.004 < 0.010 14-DEC-05 21-DEC-05 299 0.037+/- 0.004 < 0.014 21-DEC-05 28-DEC-05 305 0.044+/- 0.004 < 0.028 28-DEC-05 05-JAN-06 347 0.028+/- 0.004 < 0.008 28-DEC-05 05-JAN-06 347 0.030+/- 0.004 Duplicate 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 2

Air Particulate and Charcoal Filters Location: 018 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date m3 (pCIlM3 ) (pCilm3 ) Analysis 28-DEC-04 04-JAN-05 290 0.021+/- 0.004 < 0.016 04-JAN-05 12-JAN-05 343 0.044+/- 0.004 < 0.012 12-JAN-05 20-JAN-05 347 0.037+/- 0.004 < 0.019 20-JAN-05 26-JAN-05 259 0.032+/- 0.004 < 0.017 26-JAN-05 03-FEB-05 346 0.029+/- 0.003 < 0.016 03-FEB-05 11-FEB-05 336 0.031+/- 0.003 < 0.011 11-FEB-05 17-FEB-05 266 0.032+/- 0.004 < 0.016 17-FEB-05 25-FEB-05 335 0. 040 +/- 0.004 < 0.020 17-FEB-05 25-FEB-05 335 0.041+/- 0.004 Duplicate 25-FEB-05 04-MAR-O5 311 0.030+/- 0.004 < 0.016 04-MAR-05 09-MAR-05 212 0.023+/- 0.005 < 0.020 09-MAR-05 17-MAR-05 356 0.019+/- 0.003 < 0.018 17-MAR-05 24-MAR-05 304 0.021+/- 0.003 < 0.007 24-MAR-05 30-MAR-05 249 0.022+/- 0.004 < 0.014 30-MAR-05 06-APR-05 300 0.024+/- 0.003 < 0.015 06-APR-05 13-APR-05 302 0.025+/- 0.003 < 0.009 13-APR-05 20-APR-05 302 0.025+/- 0.004 < 0.013 20-APR-05 27-APR-05 302 0.020+/- 0.003 < 0O.011 27-APR-05 04-MAY-05 304 0.022+/- 0.003 < 0.016 04-MAY-05 11-MAY-05 303 0.030+/- 0.004 < 0.009 11-MAY-05 18-MAY-05 302 0.023+/- 0.004 < 0.010 18-MAY-05 25-MAY-05 304 0.026+/- 0.004 < 0.013 25-MAY-05 01-JUN-OS 312 0.022 +/- 0.003 < 0.009 01-JUN-05 08-JUN-OS 294 0.027+/- 0.004 < 0.015 08-JUN-05 15-JUN-05 303 0.015+/- 0.003 < 0.024 15-JUN-05 22-JUN-05 299 0.031+/- 0.004 < 0.019 22-JUN-05 28-JUN-05 266 0.042+/- 0.005 < 0.018 28-JUN-05 06-JUL-05 342 0.027+/- 0.003 < 0.014 06-JUL-05 13-JUL-05 298 0.039+/- 0.004 < 0.013 13-JUL-05 20-JUL-05 303 0.033 +/- 0.005 < 0.010 20-JUL-05 27-JUL-05 311 0.022 +/- 0.003 < 0.012 27-JUL-05 03-AUG-05 294 0.034+/- 0.004 < 0.016 03-AUG-05 10-AUG-05 310 0.037+/- 0.004 < 0.018 10-AUG-05 17-AUG-05 302 0.023+/- 0.004 < 0.011 17-AUG-05 24-AUG-05 303 0.022+/- 0.004 < 0.019 24-AUG-05 31-AUG-05 291 0.030+/- 0.004 < 0.016 31-AUG-05 07-SEP-05 301 0.048+/- 0.005 < 0.024 07-SEP-05 14-SEP-05 294 0.054+/- 0.005 < 0.016 14-SEP-05 21-SEP-05 301 0.028+/- 0.004 < 0.015 21-SEP-05 29-SEP-05 350 0.031+/- 0.004 < 0.020 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 3

Air Particulate and Charcoal Filters Location: 018 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date m3, (pCi/M 3 ) (pCIlm 3 ) Analysis 29-SEP-05 05-OCT-05 258 0.027+/- 0.004 < 0.015 05-OCT-05 12-OCT-05 307 0.025+/- 0.003 < 0.007 12-OCT-05 19-OCT-05 298 0.053+/- 0.005 < 0.016 19-OCT-05 28-OCT-05 396 0. 024 +/- 0.003 < 0.015 28-OCT-05 02-NOV-05 210 0.037+/- 0.006 < 0.020 02-NOV-05 10-NOV-05 346 0.038+/- 0.004 < 0.014 10-NOV-05 17-NOV-05 304 0.024+/- 0.004 < 0.014 10-NOV-05 17-NOV-05 304 0. 028 +/- 0.004 Duplicate 17-NOV-05 23-NOV-05 259 0. 024 +/- 0.004 < 0.014 17-NOV-05 23-NOV-05 259 0.024+/- 0.004 Duplicate 23-NOV-05 30-NOV-05 297 0.023+/- 0.004 < 0.012 30-NOV-05 06-DEC-05 267 0.049+/- 0.005 < 0.016 06-DEC-05 14-DEC-05 343 0.036+/- 0.004 < 0.010 14-DEC-05 21-DEC-05 272 0.036+/- 0.004 < 0.015 21-DEC-05 28-DEC-05 315 0.050+/- 0.005 < 0.027 28-DEC-05 05-JAN-06 365 0.028+/- 0.004 < 0.008 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 4

Air Particulate and Charcoal Filters Location: 032 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date m3 (pCi!m 3 ) (pCiIm 3 ) Analysis 28-DEC-04 04-JAN-05 295 0.023+/- 0.004 < 0.016 04-JAN-05 12-JAN-05 347 0.043+/- 0.004 < 0.012 12-JAN-05 20-JAN-05 347 0.036+/- 0.004 < 0.019 20-JAN-05 26-JAN-05 258 0.031+/- 0.004 < 0.017 26-JAN-05 03-FEB-05 347 0.027+/- 0.003 < 0.016 03-FEB-05 11-FEB-05 339 0.026+!- 0.003 < 0O.011 11-FEB-05 17-FEB-05 262 0.028+/- 0.004 < 0.016 17-FEB-05 25-FEB-05 339 0.036+/- 0.003 < 0.020 25-FEB-05 04-MAR-05 303 0.026+/- 0.004 < 0.016 04-MAR-05 09-MAR-05 215 0.018+/- 0.004 < 0.020 09-MAR-05 17-MAR-05 356 0.020+/- 0.003 < 0.018 17-MAR-05 24-MAR-05 296 0.019-+/ 0.003 < 0.007 17-MAR-05 24-MAR-05 296 0.021+/- 0.004 Duplicate 24-MAR-05 30-MAR-05 245 0.022+/- 0.004 < 0.014 30-MAR-05 06-APR-05 295 0.022+/- 0.003 < 0.015 06-APR-05 13-APR-05 302 0.020+/- 0.003 < 0.009 13-APR-05 20-APR-05 297 0.024+/- 0.004 < 0.013 20-APR-05 27-APR-05 297 0.021+/- 0.004 < 0.011 27-APR-05 04-MAY-05 304 0.020+/- 0.003 < 0.016 04-MAY-05 11-MAY-05 302 0.027+/- 0.003 < 0.009 11-MAY-05 18-MAY-05 303 0.020+/- 0.003 < 0.010 18-MAY-05 25-MAY-05 299 0.024+/- 0.004 < 0.013 25-MAY-05 01-JUN-05 303 0.022+/- 0.003 < 0.010 01-JUN-05 08-JUN-05 285 0.024+/- 0.004 < 0.015 01-JUN-05 08-JUN-05 285 0.025+/- 0.004 Duplicate 08-JUN-05 15-JUN-05 294 0.015+/- 0.003 < 0.025 15-JUN-05 22-JUN-05 300 0.031+/- 0.004 < 0.019 22-JUN-05 28-JUN-05 266 0.041+/- 0.005 < 0.018 28-JUN-05 06-JUL-05 342 0.027+/- 0.003 < 0.014 06-JUL-05 13-JUL-05 299 0.041+/- 0.004 < 0.013 13-JUL-05 20-JUL-05 308 0.036+/- 0.005 < 0.010 20-JUL-05 27-JUL-05 302 0.017+/- 0.003 < 0.013 27-JUL-05 03-AUG-05 306 0.031+/- 0.004 < 0.016 03-AUG-05 10-AUG-05 321 0.038+/- 0.004 < 0.017 10-AUG-05 17-AUG-05 313 0.021+/- 0.004 < 0O.011 17-AUG-05 24-AUG-05 306 0.021+/- 0.003 < 0.019 24-AUG-05 31-AUG-05 297 0.029+/- 0.004 < 0.016 31-AUG-05 07-SEP-05 313 0.047+/- 0.004 < 0.023 07-SEP-05 14-SEP-05 301 0.053 +/- 0.005 < 0.016 14-SEP-05 21-SEP-05 312 0.031+/- 0.004 < 0.015 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 5

Air Particulate and Charcoal Filters Location: 032 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date m3 (pCiUm 3 ) (pCUm 3 ) Analysis 21-SEP-05 29-SEP-05 358 0.030+/- 0.004 < 0.020 29-SEP-05 05-OCT-05 264 0.024 +/- 0.004 < 0.014 05-OCT-05 12-OCT-05 311 0.023 +/- 0.003 < 0.007 12-OCT-05 19-OCT-05 309 0.051+/- 0.005 < 0.016 19-OCT-05 28-OCT-05 409 0.024+/- 0.003 < 0.015 28-OCT-05 02-NOV-05 213 0.035+/- 0.006 < 0.020 02-NOV-05 10-NOV-05 351 0.040+/- 0.004 < 0.014 10-NOV-05 17-NOV-05 312 0.027+/- 0.004 < 0.014 17-NOV-05 23-NOV-05 264 0.023+/- 0.004 < 0.014 23-NOV-05 30-NOV-05 303 0.023+/- 0.004 < 0.011 30-NOV-05 06-DEC-05 264 0.050+/- 0.005 < 0.016 06-DEC-05 14-DEC-05 343 0.035+/- 0.004 < 0.010 14-DEC-05 21-DEC-05 298 0.035+/- 0.004 < 0.014 21-DEC-05 28-DEC-05 300 0. 048 +/- 0.005 < 0.028 28-DEC-05 05-JAN-06 348 0. 028 +/- 0.004 < 0.008 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 6

Air Particulate and Charcoal Filters Location: 037 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date - m3 (pCilm 3 ) (pCiUm 3 ) Analysis 28-DEC-04 04-JAN-05 285 0.022+/- 0.004 < 0.017 28-DEC-04 04-JAN-05 285 0.023-+/ 0.004 Duplicate 04-JAN-05 12-JAN-05 334 0.046+/- 0.004 < 0.013 12-JAN-05 20-JAN-05 353 0.039+/- 0.004 < 0.019 20-JAN-05 26-JAN-05 262 0.032+/- 0.004 < 0.017 26-JAN-05 03-FEB-05 347 0.029+/- 0.003 < 0.016 03-FEB-05 11-FEB-05 345 0.032+/- 0.003 < 0.010 11-FEB-05 17-FEB-05 266 0.035+/- 0.004 < 0.016 17-FEB-05 25-FEB-05 339 0.037+/- 0.004 < 0.020 25-FEB-05 04-MAR-05 303 0.029+!- 0.004 < 0.016 04-MAR-05 09-MAR-05 216 0.022+/- 0.005 < 0.020 09-MAR-05 17-MAR-05 356 0.018+!- 0.003 < 0.018 17-MAR-05 24-MAR-05 301 0.020+/- 0.003 < 0.007 24-MAR-05 30-MAR-05 236 0.021+/- 0.004 < 0.014 24-MAR-05 30-MAR-05 236 0.021+!- 0.004 Duplicate 30-MAR-05 06-APR-05 290 0.021+/- 0.003 < 0.015 06-APR-05 13-APR-05 302 0.021+/- 0.003 < 0.009 13-APR-05 20-APR-05 297 0.028+/- 0.004 < 0.013 20-APR-05 27-APR-05 297 0.021+/- 0.004 < 0.011 27-APR-05 04-MAY-05 304 0.020+/- 0.003 < 0.016 04-MAY-05 11-MAY-05 302 0.027+/- 0.003 < 0.009 04-MAY-05 11-MAY-05 302 0.027+/- 0.003 Duplicate 11-MAY-05 18-MAY-05 298 0.025+/- 0.004 < 0.010 18-MAY-05 25-MAY-05 298 0.024+/- 0.004 < 0.013 25-MAY-05 01-JUN-05 309 0.022+/- 0.003 < 0.009 01-JUN-05 08-JUN-05 296 0.026+/- 0.004 < 0.014 08-JUN-05 15-JUN-05 293 0.014+/- 0.003 < 0.025 15-JUN-05 22-JUN-05 301 0.032+/- 0.004 < 0.019 22-JUN-05 28-JUN-05 266 0.042+/- 0.005 < 0.018 28-JUN-05 06-JUL-05 304 0.027 +/- 0.003 < 0.016 06-JUL-05 13-JUL-05 298 0.041+/- 0.004 < 0.013 13-JUL-05 20-JUL-05 292 0.034+/- 0.005 < 0.010 20-JUL-05 27-JUL-05 304 0.015+/- 0.003 < 0.012 27-JUL-05 03-AUG-05 289 0.038+/- 0.004 < 0.017 03-AUG-05 10-AUG-05 310 0.041+/- 0.004 < 0.018 10-AUG-05 17-AUG-05 308 0.020+/- 0.004 < 0O.011 17-AUG-05 24-AUG-05 296 0.022+/- 0.004 < 0.019 24-AUG-05 31-AUG-05 293 0.035+/- 0.004 < 0.016 31-AUG-05 07-SEP-05 303 0.052+/- 0.005 < 0.024 07-SEP-05 14-SEP-05 295 0.051+/- 0.005 < 0.016 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 7

Air Particulate and Charcoal Filters Location: 037 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date m3 (pCUm 3 ) (pCiIm 3 ) Analysis 14-SEP-05 21-SEP-05 302 0.029+/- 0.004 < 0.015 21-SEP-05 29-SEP-05 346 0.030+/- 0.004 < 0.020 29-SEP-05 05-OCT-05 253 0.028+/- 0.005 < 0.015 05-OCT-05 12-OCT-05 310 0.025+/- 0.003 < 0.007 12-OCT-05 19-OCT-05 309 0.055+/- 0.005 < 0.016 19-OCT-05 28-OCT-05 422 0.025+/- 0.003 < 0.015 28-OCT-05 02-NOV-05 210 0.039+/- 0.006 < 0.020 02-NOV-05 10-NOV-05 345 0.045+/- 0.004 < 0.014 10-NOV-05 17-NOV-05 302 0.027+/- 0.004 < 0.014 17-NOV-05 23-NOV-05 255 0.026+/- 0.004 < 0.014 23-NOV-05 30-NOV-05 298 0.020+/- 0.004 < 0.012 30-NOV-05 06-DEC-05 264 0.047+/- 0.005 < 0.016 06-DEC-05 14-DEC-05 343 0.036+/- 0.004 < 0.010 14-DEC-05 21-DEC-05 299 0. 038 +/- 0.004 < 0.014 21-DEC-05 28-DEC-05 300 0.050+/- 0.005 < 0.028 28-DEC-05 05-JAN-06 342 0.027+/- 0.004 < 0.009 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 8

Air Particulate and Charcoal Filters Location: 048 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date m3 (pCi/m 3 ) (pCiIm3 ) Analysis 28-DEC-04 04-JAN-05 300 0.021+/- 0.003 < 0.016 04-JAN-05 12-JAN-05 314 0.046+/- 0.005 < 0.013 12-JAN-05 20-JAN-05 347 0.037+/- 0.004 < 0.019 20-JAN-05 26-JAN-05 257 0.027+/- 0.004 < 0.017 26-JAN-05 03-FEB-05 339 0.030+/- 0.003 < 0.016 03-FEB-05 11-FEB-05 333 0.030+/- 0.003 < 0.011 11-FEB-05 17-FEB-05 269 0.028+/- 0.004 < 0.016 17-FEB-05 25-FEB-05 342 0.038+!- 0.004 < 0.019 25-FEB-05 04-MAR-05 311 0.027+/- 0.004 < 0.016 04-MAR-05 09-MAR-05 212 0.022+/- 0.005 < 0.020 09-MAR-05 17-MAR-05 356 0.021+/- 0.003 < 0.018 17-MAR-05 24-MAR-05 304 0.019+/- 0.003 < 0.007 24-MAR-05 30-MAR-05 245 0.022+/- 0.004 < 0.014 30-MAR-05 06-APR-05 300 0.023+/- 0.003 < 0.015 06-APR-05 13-APR-05 297 0.022+/- 0.003 < 0.009 13-APR-05 20-APR-05 297 0.024+/- 0.004 < 0.013 20-APR-05 27-APR-05 302 0.018+/- 0.003 < 0.011 27-APR-05 04-MAY-05 304 0.021+/- 0.003 < 0.016 04-MAY-05 11-MAY-05 303 0.028+/- 0.003 < 0.009 11-MAY-05 18-MAY-05 302 0.022+/- 0.004 < 0.010 18-MAY-05 25-MAY-05 304 0.026+/- 0.004 < 0.013 25-MAY-05 01-JUN-05 310 0.019+/- 0.003 < 0.009 01-JUN-05 08-JUN-05 293 0.022+/- 0.004 < 0.015 08-JUN-05 15-JUN-05 299 0.014 +/- 0.003 < 0.025 08-JUN-05 15-JUN-05 299 0.015+/- 0.003 Duplicate 15-JUN-05 22-JUN-05 301 0.029+/- 0.004 < 0.019 22-JUN-05 28-JUN-05 266 0.037+/- 0.005 < 0.018 28-JUN-05 06-JUL-05 342 0.025+/- 0.003 < 0.014 06-JUL-05 13-JUL-05 294 0.039+/- 0.004 < 0.013 13-JUL-05 20-JUL-05 302 0.032+/- 0.004 < 0.010 20-JUL-05 27-JUL-05 302 0.016+/- 0.003 < 0.013 27-JUL-05 03-AUG-05 301 0.034+/- 0.004 < 0.016 03-AUG-05 10-AUG-05 312 0.041+/- 0.004 < 0.018 10-AUG-05 17-AUG-05 306 0.021+/- 0.004 < 0.011 17-AUG-05 24-AUG-05 303 0.022+/- 0.004 < 0.019 24-AUG-05 31-AUG-05 291 0.027+/- 0.004 < 0.016 31-AUG-05 07-SEP-05 299 0.039+/- 0.004 < 0.024 07-SEP-05 14-SEP-05 296 0.046+/- 0.005 < 0.016 14-SEP-05 21-SEP-05 296 0.030+/- 0.004 < 0.016 21-SEP-05 29-SEP-05 347 0.027+/- 0.003 < 0.020 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 9

Air Particulate and Charcoal Filters Location: 048 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date  : M3 (pCiIm 3 ) L(pCUrM3 ) Analysis 29-SEP-05 05-OCT-05 261 0.022+/- 0.004 < 0.015 05-OCT-05 12-OCT-05 305 0.025+/- 0.004 < 0.007 12-OCT-05 19-OCT-05 290 0.046+/- 0.005 < 0.017 19-OCT-05 28-OCT-05 396 0.023+/- 0.003 < 0.015 28-OCT-05 02-NOV-05 206 0.035+/- 0.006 < 0.021 02-NOV-05 10-NOV-05 338 0.038+/- 0.004 < 0.015 10-NOV-05 17-NOV-05 298 0.024+/- 0.004 < 0.014 17-NOV-05 23-NOV-05 259 0.024+/- 0.004 < 0.014 23-NOV-05 30-NOV-05 292 0.021+/- 0.004 < 0.012 30-NOV-05 06-DEC-05 265 0.047+/- 0.005 < 0.016 06-DEC-05 14-DEC-05 338 0.034+/- 0.004 < 0.010 14-DEC-05 21-DEC-05 285 0.034+/- 0.004 < 0.014 21-DEC-05 28-DEC-05 295 0.046+/- 0.005 < 0.029 28-DEC-05 05-JAN-06 336 0.030+/- 0.004 < 0.009 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 10

Air Particulate and Charcoal Filters Location: 049 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date m3 (pCim 3 ) (pCiIm 3 ) Analysis 28-DEC-04 04-JAN-05 295 0.021+/- 0.003 < 0.016 04-JAN-05 12-JAN-05 339 0.039+/- 0.004 < 0.012 12-JAN-05 20-JAN-05 353 0.038+/- 0.004 < 0.019 20-JAN-05 26-JAN-05 258 0.029+/- 0.004 < 0.017 26-JAN-05 03-FEB-05 348 0.028+/- 0.003 < 0.016 03-FEB-05 11-FEB-05 352 0.031+/- 0.003 < 0.010 11-FEB-05 17-FEB-05 264 0.025+/- 0.004 < 0.016 17-FEB-05 25-FEB-05 346 0.035+/- 0.003 < 0.019 25-FEB-05 04-MAR-05 307 0.027+/- 0.004 < 0.016 04-MAR-05 09-MAR-05 213 0.021+/- 0.005 < 0.020 09-MAR-05 17-MAR-05 356 0.019+/- 0.003 < 0.018 17-MAR-05 24-MAR-05 300 0.019+/- 0.003 < 0.007 24-MAR-05 30-MAR-05 245 0.033+/- 0.005 < 0.014 30-MAR-05 06-APR-05 295 0.023+/- 0.003 < 0.015 06-APR-05 13-APR-05 297 0.023+/- 0.003 < 0.009 13-APR-05 20-APR-05 297 0.025+/- 0.004 < 0.013 20-APR-05 27-APR-05 302 0.018+/- 0.003 < 0.011 27-APR-05 04-MAY-05 304 0.019+/- 0.003 < 0.016 04-MAY-05 11-MAY-05 302 0.026 +/- 0.003 < 0.009 11-MAY-05 18-MAY-05 303 0.019+/- 0.003 < 0.010 18-MAY-05 25-MAY-05 303 0.023+/- 0.003 < 0.013 25-MAY-05 01-JUN-05 316 0.021+/- 0.003 < 0.009 01-JUN-05 08-JUN-05 289 0.024+/- 0.004 < 0.015 08-JUN-05 15-JUN-05 303 0.014 +/- 0.003 < 0.024 15-JUN-05 22-JUN-05 296 0.031+/- 0.004 < 0.019 22-JUN-05 28-JUN-05 266 0.046+/- 0.005 < 0.018 28-JUN-05 06-JUL-05 336 0.028+/- 0.003 < 0.015 06-JUL-05 13-JUL-05 293 0.040+/- 0.004 < 0.013 13-JUL-05 20-JUL-05 303 0.030+/- 0.004 < 0.010 20-JUL-05 27-JUL-05 302 0.019+/- 0.003 < 0.013 27-JUL-05 03-AUG-05 301 0.041+/- 0.004 < 0.016 03-AUG-05 10-AUG-05 311 0.047+/- 0.005 < 0.018 10-AUG-05 17-AUG-05 298 0.020+/- 0.004 < 0.011 17-AUG-05 24-AUG-05 301 0.022+/- 0.004 < 0.019 24-AUG-05 31-AUG-05 293 0.035+/- 0.004 < 0.016 31-AUG-05 07-SEP-05 305 0.048+/- 0.005 < 0.024 07-SEP-05 14-SEP-05 289 0.049+/- 0.005 < 0.017 14-SEP-05 21-SEP-05 297 0.026+/- 0.004 < 0.016 21-SEP-05 29-SEP-05 346 0.028+/- 0.004 < 0.020 29-SEP-05 05-OCT-05 262 0.025+/- 0.004 < 0.015 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 11

Air Particulate and Charcoal Filters Location: 049 Gross Beta 1-131 Collection Collection Volume Concentration Concentration Duplicate Start Date End Date nm3 (pCi/m3 ) (pCiIm 3 ) Analysis 05-OCT-05 12-OCT-05 306 0.026+/- 0.004 c 0.007 12-OCT-05 19-OCT-05 299 0.051+/- 0.005 < 0.016 19-OCT-05 28-OCT-05 396 0.026+/- 0.003 < 0.015 28-OCT-05 02-NOV-os 210 0.036+/- 0.006 < 0.020 02-NOV-05 10-NOV-05 345 0.044+/- 0.004 < 0.014 10-NOV-05 17-NOV-05 309 0.027+/- 0.004 < 0.014 17-NOV-05 23-NOV-05 259 0.027+/- 0.004 c 0.014 23-NOV-05 30-NOV-05 303 0.026+/- 0.004 < 0.011 30-NOV-05 06-DEC-05 258 0.042 +/- 0.005 < 0.016 06-DEC-05 14-DEC-05 332 0.035+/- 0.004 < 0.010 14-DEC-05 21-DEC-05 290 0.036+/- 0.004 < 0.014 14-DEC-05 21-DEC-05 290 0.034+/- 0.004 Duplicate 21-DEC-05 28-DEC-05 295 0.040+/- 0.004 c 0.029 28-DEC-05 05-JAN-06 335 0.026+/- 0.004 < 0.009 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 12

Quarterly Air Particulate - Gamma Location: 002 Nuclide 30-MAR-05 28JUN-05 29-SEP-05 28-DEC-05 Concentration Concentration Concentration Concentration (pCUrM3 ) (pCUm 3 ) -(pCIIm 3 ) (pCUrrn BE-7 0.062+/- 0.013 0.087+/- 0.014 0.084 +/- 0.018 0.059+/- 0.011 MN-54 < 0.001 0.001 0.001 < 0.001 CO-58 < 0.001 0.001 0.001 < 0.001 FE-59 < 0.001 0.001 0.002 < 0.002 Ca-60 < 0.001 0.001 0.001 < 0.001 ZN-65 < 0.001 0.001 0.001 < 0.001 ZR-NB- 95 < 0.001 0.001 0.001 < 0.001 CS-134 < 0.001 0.001 0.001 < 0.001 CS-137 < 0.001 0.001 0.001 < 0.001

• Duplicate Analysis 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 13

Quarterly Air Particulate - Gamma Location: 018 Nuclide 30-MAR-05 28-JUN-05 29-SEP-05 28-DEC-05 Concentration Concentration Concentration Concentration (pCUm 3 ) (pCIIm3 ) (pCiIm3 ) (pCnit )

BE-7 0.057+/- 0.016 0.099+/- 0.019 0.099+/- 0.015 0.063+/- 0.012 MN-54 < 0.001 < 0.001 < 0.001 < 0.001 CO-58 < 0.001 < 0.001 < 0.001 < 0.001 FE-59 < 0.001 < 0.001 < 0.002 < 0.003 CO-60 < 0.001 < 0.001 < 0.001 < 0.001 ZN-65 < 0.001 < 0.001 < 0.001 < 0.002 ZR-NB-95 < 0.001 < 0.001 < 0.001 < 0.001 CS-134 < 0.001 < 0.001 < 0.001 < 0.001 CS-137 < 0.001 < 0.001 < 0.001 < 0.001

• Duplicate Analysis 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 14

Quarterly Air Particulate - Gamma Location: 032

Nuclide 30-MAR-05 28-JUN-05 29-SEP-05 28-DEC-05 Concentration Concentration Concentration Concentration (pCIIm3 ) (pCiIm 3 ) (pCilm3 ) (pCIln )

BE-7 0.059+/- 0.014 0.087+/- 0.018 0.091+/- 0.017 0.071+/- 0.015 MN-54 < 0.001 < 0.001 < 0.001 < 0.001 CO-58 < 0.001 < 0.001 < 0.001 < 0.001 FE-59 < 0.001 < 0.001 < 0.001 < 0.002 CO-60 < 0.001 < 0.001 < 0.001 < 0.001 ZN-65 < 0.001 < 0.001 < 0.001 < 0.001 ZR-NB-95 < 0.001 < 0.001 < 0.001 < 0.001 CS-134 < 0.001 < 0.001 < 0.001 < 0.001 CS-137 < 0.001 < 0.001 < 0.001 < 0.001

• Duplicate Analysis 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 15

Quarterly Air Particulate - Gamma Location: 037 Nuclide 30-MAR-05 28-JUN-05 29-SEP-05 28-DEC-05 Concentration Concentration Concentration Concentration (pCIIm 3 ) (pCUM 3 ) (pCI/m 3 ) (pCI/n )

BE-7 0.064 +/- 0.014 0.106+/- 0.017 0. 100 +1- 0.019 0.063+/- 0.012 MN-54 0.001 < 0.001 0.001 < 0.001 CO-58 0.001 < 0.001 0.001 < 0.001 FE-59 0.001 < 0.001 0.002 < 0.001 CO-60 0.001 < 0.001 0.001 < 0.001 ZN-65 0.002 < 0.001 0.001 < 0.001 ZR-NB-95 0.001 < 0.001 0.001 < 0.001 CS-134 0.001 < 0.001 0.001 < 0.001 CS-137 0.001 < 0.001 0.001 < 0.001

• Duplicate Analysis 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 16

Quarterly Air Particulate - Gamma Location: 048 Nuclide 30-MAR-05 28-JUN-05 29-SEP-05 28-DEC-06 Concentration Concentration Concentration Concentration (pCiIm 3 ) (pCjlm 3 ) (pC[Im 3 ) (pCUIn )

BE-7 0.064 +/- 0.015 0.095 +/ - 0.018 0.087+/- 0.016 0.056+/- 0.012 MN-54 0.001 0.001 < 0.001 < 0.001 CO-58 0.001 0.001 < 0.001 < 0.001 FE-59 0.001 0.001 < 0.002 < 0.001 CO-60 0.001 0.001 < 0.001 < 0.001 ZN-65 0.001 0.001 < 0.001 < 0.001 ZR-NB- 95 0.001 0.001 < 0.001 < 0.001 CS-134 0.001 0.001 < 0.001 < 0.001 CS-137 0.001 0.001 < 0.001 < 0.001

• Duplicate Analysis 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 17

Quarterly Air Particulate - Gamma Location: 049 Nuclide 30-MAR-05 28-JUN-05 29-EP-05 28-DEC-05 Concentration Concentration Concentration Concentration (pClIm 3 ) (pCiIm 3 ) (pCi/M 3 ) (pCi/rrP)

BE-7 0.059+/- 0.016 0.107+/- 0.019 0.107+/- 0.018 0.082+/- 0.014 MN-54 < 0.001 < 0.001 < 0.001 < 0.001 CO-58 < 0.001 < 0.001 < 0.001 < 0.001 FE-59 < 0.001 < 0.001 < 0.002 < 0.002 CO-60 < 0.001 < 0.001 < 0.001 < 0.001 ZN-65 < 0.001 < 0.001 < 0.001 < 0.001 ZR-NB-95 < 0.001 < 0.001 < 0.001 < 0.001 CS-134 < 0.001 < 0.001 < 0.001 < 0.001 CS-137 < 0.001 < 0.001 < 0.001 < 0.001

• Duplicate Analysis 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 18

Exposure Pathway - Waterborne Surface Water Location JRR I Gamma Spectrum & H-3 Collection Nuclide Concentration Duplicate Date  : (pCULiter) Analysis 13-JAN-05 MN-54 < 1.500 13-JAN-05 CO-58 < 3.700 13-JAN-05 FE-s9 < 5.800 13-JAN-05 CO-60 < 2.200 13-JAN-05 ZN-65 < 4.800 13-JAN-05 ZR-NB-95 < 4.400 13-JAN-05 I-131 < 4.100 13-JAN-05 CS-134 < 2.300 13-JAN-05 CS-137 < 3.300 13-JAN-05 BA-LA-140 < 3.700 13-JAN-05 H-3 < 164.000 10-FEB-05 MN-54 < 4.400 10-FEB-05 CO-58 < 3.600 10-FEB-05 FE-59 < 6.700 10-FEB-05 CO-60 < 4.500 10-FEB-05 ZN-65 < 6.300 10-FEB-05 ZR-NB-95 < 3.800 10-FEB-05 I-131 < 7.100 10-FEB-05 CS-134 < 2.600 10-FEB-05 CS-137 < 3.000 10-FEB-05 BA-LA-140 < 7.900 10-FEB-05 H-3 < 166.000 10-MAR-0s MN-54 < 5.700 10-MAR-05 CO-58 < 2.900 10-MAR-05 FE-59 < 3.000 10-MAR-05 CO-60 < 4.700 10-MAR-05 ZN-65 < 4.500 10-MAR-05 ZR-NB-95 < 5.900 10-MAR-05 I-131 < 5.900 10-MAR-05 CS-134 < 2.700 10-MAR-05 CS-137 < 5.200 10-MAR-05 BA-LA-140 < 6.800 10-MAR-05 H-3 < 147.000 21-APR-05 MN-54 < 5.300 21-APR-05 CO-58 < 4.200 21-APR-05 FE-59 < 6.600 21-APR-05 CO-60 < 5.200 21-APR-05 ZN-65 < 10.000 21-APR-05 ZR-NB-95 < 4.600 21-APR-05 I-131 < 6.600 21-APR-05 CS-134 < 5.000 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 19

Exposure Pathway - Waterborne Surface Water Location JRR XT I .Gamma I Spectrum & H-3 Collection Nuclide Concentration Duplicate Date L 0 I (pCi/Liter) Analysis 21-APR-05 CS-137 < 3.500 21-APR-oS BA-LA-140 < 3.300 21-APR-05 H-3 < 139.000 12-MAY-05 MN-54 < 2.300 12-MAY-05 CO-58 < 2.300 12-MAY-05 FE-59 < 44.800 12-MAY-05 CO-60 < 2.600 12-MAY-05 ZN-65 < 3.900 12-MAY-05 ZR-NB-95 < 4.700 12-MAY-05 I-131 < 9.800 12-MAY-05 CS-134 < 2.100 12-MAY-05 CS-137 < 3.300 12-MAY-05 BA-LA-140 < 4.400 12-MAY-05 H-3 < 140.000 09-JUN-05 MN-54 < 3.700 09-JUN-05 CO-58 < 3.500 09-JUN-05 FE-59 < 5.500 09-JUN-05 CO-60 < 5.800 09-JUN-05 ZN-65 < 6.200 09-JUN-05 ZR-NB-95 < 5.200 09-JUN-05 I-131 < 9.200 09-JUN-05 CS-134 < 5.700 09-JUN-05 CS-137 < 4.600 09-JUN-05 BA-LA-140 < 7.700 09-JUN-05 H-3 < 169.000 08-JUL-05 MN-54 < 3.000 08-JUL-05 CO-58 < 1.500 08-JUL-05 FE-59 < 4.100 08-JUL-05 CO-60 < 1.900 08-JUL-05 ZN-65 < 1.800 08-JUL-05 ZR-NB-95 < 3.300 08-JUL-05 I-131 < 6.700 08-JUL-05 CS-134 < 4.700 08-JUL-05 CS-137 < 3.800 08-JUL-05 BA-LA-140 < 3.000 08-JUL-05 H-3 < 164.000 11-AUG-05 MN-54 < 6.200 1 11-AUG-05 MN-54 < 2.400 Duplicate 11-AUG-05 CO-58 < 4.100 1 11-AUG-05 CO-58 < 2.900 Duplicate 11-AUG-05 FE-59 < 7.500 1 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 20

Exposure Pathway - Waterborne Surface Water Location JRR

I 1IGamma f Spectrum & H-3 Collection Nuclide Concentration Duplicate Date I (pCiLlter) Analysis 11-AUG-05 FE-59 < 7.100 Duplicate 11-AUG-05 CO-60 < 4.100 1 11-AUG-05 Ca-60 < 2.400 Duplicate 11-AUG-05 ZN-65 < 7.800 1 11-AUG-05 ZN-65 < 5.900 Duplicate 11-AUG-05 ZR-NB-95 < 5.300 1 11-AUG-05 ZR-NB-95 < 4.300 Duplicate 11-AUG-05 I-131 < 7.800 1 11-AUG-05 I-131 < 5.900 Duplicate 11-AUG-05 CS-134 < 5.600 1 11-AUG-05 CS-134 < 5.300 Duplicate 11-AUG-05 CS-137 < 5.400 1 11-AUG-05 CS-137 < 4.900 Duplicate 11-AUG-05 BA-LA-140 < 5.200 1 11-AUG-05 BA-LA-140 < 7.100 Duplicate 11-AUG-05 H-3 < 173.000 1 ll-AUG-05 H-3 < 173.000 Duplicate 09-SEP-05 MN-54 c 2.100 09-SEP-05 CO-58 < 1.500 09-SEP-05 FE-59 < 5.400 09-SEP-05 CO-60 < 2.200 09-SEP-05 ZN-65 < 3.400 09-SEP-05 ZR-NB-95 < 3.700 09-SEP-05 I-131 < 6.300 09-SEP-05 CS-134 < 3.600 09-SEP-05 CS-137 < 3.600 09-SEP-05 BA-LA-140 < 2.400 09-SEP-05 H-3 < 169.000 20-OCT-05 MN-54 < 2.900 20-OCT-05 CO-58 < 2.400 20-OCT-05 FE-59 < 5.100 20-OCT-05 CO-60 < 2.100 20-OCT-05 ZN-65 < 6.000 20-OCT-05 ZR-NB-95 < 2.600 20-OCT-05 I-131 < 4.000 20-OCT-05 CS-134 < 3.800 20-OCT-05 CS-137 < 4.300 20-OCT-05 BA-LA-140 < 4.300 20-OCT-05 H-3 219.000+/- 95.000 17-NOV-05 MN-54 < 3.900 17-NOV-05 CO-58 < 3.900 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 21

Exposure Pathway - Waterborne Surface Water Location JRR iI :Gamma Spectrum & H-3 Collection Nuclide - yIConcentration Duplicate Date (pCiILiter) Analysis 17-NOV-05 FE-59 < 9.800 17-NOV-05 CO-60 < 2.900 17-NOV-05 ZN-65 < 6.300 17-NOV-05 ZR-NB-95 < 6.000 17-NOV-05 I-131 < 6.800 17-NOV-05 CS-134 < 5.000 17-NOV-05 CS-137 < 5.400 17-NOV-05 BA-LA-140 < 4.500 17-NOV-05 H-3 < 163.000 15-DEC-05 MN- 54 < 6.000 15-DEC-05 CO-58 < 4.700 15-DEC-05 FE-59 < 6.800 15-DEC-05 CO-60 < 2.800 15-DEC-05 ZN-65 < 9.300 15-DEC-05 ZR-NB-95 < 4.500 15-DEC-05 I-131 < 6.200 15-DEC-05 CS-134 < 5.300 15-DEC-05 CS-137 < 5.300 15-DEC-05 BA-LA-140 < 4.800 15-DEC-05 H-3 < 184.000 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 22

Exposure Pathway - Waterborne Surface Water Location SP Gamma Spectrum & H3 Collection Nuclide Concentration Duplicate Date (pClILiter) Analysis 13-JAN-05 MN-54 < 1.200 13-JAN-05 CO-58 < 1.400 13-JAN-05 FE-59 < 2.300 13-JAN-05 CO-60 < 1.700 13-JAN-05 ZN-65 < 3.300 13-JAN-05 ZR-NB-95 < 3.300 13-JAN-05 I-131 < 6.700 13-JAN-05 CS-134 < 3.300 13-JAN-05 CS-137 < 2.600 13-JAN-05 BA-LA-140 < 3.300 13-JAN-05 H-3 13878.000+/- 334.000 10-FEB-05 MN-54 < 1.700 10-FEB-05 CO-58 < 4.400 10-FEB-05 FE-59 < 3.500 10-FEB-05 CO-60 < 2.200 10-FEB-05 ZN-65 < 3.700 10-FEB-05 ZR-NB-95 < 5.500 10-FEB-05 I-131 < 6.200 10-FEB-05 CS-134 < 4.300 10-FEB-05 CS-137 < 3.900 10-FEB-05 BA-LA-140 < 3.900 10-FEB-05 H-3 15907.000+/- 354.000 10-MAR-05 MN-54 < 1.700 1 10-MAR-05 MN-54 < 3.600 Duplicate 10-MAR-05 CO-58 < 3.200 1 10-MAR-05 CO-58 < 1.900 Duplicate 10-MAR-05 FE-59 < 5.000 1 10-MAR-05 FE-59 < 5.500 Duplicate 10-MAR-05 CO-60 < 2.200 1 10-MAR-05 CO-60 < 2.200 Duplicate 10-MAR-05 ZN-65 < 3.700 1 10-MAR-OS ZN-65 < 3.400 Duplicate 10-MAR-05 ZR-NB-95 < 3.900 1 10-MAR-05 ZR-NB-95 < 4.700 Duplicate 10-MAR-05 I-131 < 3.900 1 10-MAR-05 I-131 < 4.000 Duplicate 10-MAR-05 CS-134 < 3.100 1 10-MAR-05 CS-134 < 2.300 Duplicate 10-MAR-05 CS-137 < 3.900 1 10-MAR-05 CS-137 < 3.200 Duplicate 10-MAR-05 BA-LA-140 < 3.300 1 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 23

Exposure Pathway - Waterborne Surface Water Location SP Gamma Spectrum & H-3 Collection Nuclide - Concentration Duplicate Date (pCi/Liter) Analysis 10-MAR-05 BA-LA-140 < 2.300 Duplicate 10-MAR-05 H-3 14970.000+/- 332.000 1 10-MAR-05 H-3 15254.000+/- 335.000 Duplicate 21-APR-05 MN-54 < 5.400 21-APR-05 CO-58 < 5.200 21-APR-05 FE-59 < 9.200 21-APR-05 CO-60 < 4.000 21-APR-05 ZN-65 < 5.000 21-APR-05 ZR-NB-95 < 4.600 21-APR-05 1-131 < 6.400 21-APR-05 CS-134 < 6.000 21-APR-05 CS-137 < 4.700 21-APR-05 BA-LA-140 < 6.700 21-APR-05 H-3 15313.000+/- 336.000 12-MAY-05 MN-54 < 3.000 12-MAY-05 CO-58 < 2.900 12-MAY-05 FE-59 < 3.900 12-MAY-05 CO-60 < 1.000 12-MAY-05 ZN-65 < 2.500 12-MAY-05 ZR-NB-95 < 3.600 12-MAY-05 1-131 < 8.600 12-MAY-05 CS-134 < 4.200 12-MAY-05 CS-137 < 2.200 12-MAY-05 BA-LA-140 < 3.400 12-MAY-05 H-3 15289.000+/- 335.000 09-JUN-O5 MN-54 < 3.400 09-JUN-05 CO-58 < 3.800 09-JUN-05 FE-59 < 5.500 09-JUN-05 CO-60 < 3.300 09-JUN-05 ZN-65 < 6.300 09-JUN-05 ZR-NB-95 < 6.300 09-JUN-05 1-131 < 5.000 09-JUN-05 CS-134 < 6.100 09-JUN-05 CS-137 < 3.700 09-JUN-05 BA-LA-140 < 6.900 09-JUN-05 H-3 14119.000+/- 336.000 08-JUL-05 MN-54 < 4.900 08-JUL-05 CO-58 < 2.500 08-JUL-05 FE-59 < 4.200 08-JUL-05 CO-60 < 4.400 08-JUL-05 ZN-65 < 5.600 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 24

Exposure Pathway - Waterborne Surface Water Location SP

= -' ':' ' I " Gamma Spectrum & H-3 Collection Nuclide Concentration Duplicate Date I ; r,:0(pCIlLlter) Analysis 08-JUL-05 ZR-NB-95 5.200 08-JUL-05 I-131 9.500 08-JUL-05 CS-134 3.100 08-JUL-05 CS-137 6.400 08-JUL-05 BA-LA-140 5.500 08-JUL-05 H-3 11816.000+/- 307.000 11-AUG-05 MN-54 3.600 11-AUG-05 CO-58 5.000 11-AUG-05 FE-59 8.500 11-AUG-05 CO-60 3.800 11-AUG-05 ZN-65 3.100 11-AUG-05 ZR-NB-95 4.400 11-AUG-05 I-131 8.900 11-AUG-05 CS-134 5.100 11-AUG-05 CS-137 4.200 11-AUG-05 BA-LA-140 7.100 11-AUG-05 H-3 11819.000+/-- 314.000 09-SEP-05 MN- 54 3.900 09-SEP-05 CO-58 2.000 09-SEP-05 FE-59 7.000 09-SEP-05 CO-60 3.700 09-SEP-05 ZN-65 5.200 09-SEP-05 ZR-NB-95 4.100 09-SEP-05 I-131 4.700 09-SEP-05 CS-134 3.900 09-SEP-os CS-137 4.100 09-SEP-05 BA-LA-140 4.100 09-SEP-05 H-3 10793.000+/- 298.000 20-OCT-05 MN-54 2.600 20-OCT-05 CO-58 4.500 20-OCT-05 FE-59 5.000 20-OCT-05 CO-60 1.500 20-OCT-05 ZN-65 3.900 20-OCT-05 ZR-NB-95 4.300 20-OCT-05 I-131 6.300 20-OCT-05 CS-134 4.000 20-OCT-05 CS-137 2.800 20-OCT-05 BA-LA-140 3.400 20-OCT-05 H-3 10939.000+/- 302.000 17-NOV-05 MN-54 4.200 17-NOV-05 CO-58 1.900 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 25

Exposure Pathway - Waterborne Surface Water Location SP Gamma Spectrum & H-3 Collection Nuclide . Concentration Duplicate Date I i I: (pCULter) Analysis 17-NOV-05 FE-59 < 8.500 17-NOV-05 CO-60 < 2.500 17-NOV-05 ZN-65 < 5.300 17-NOV-05 ZR-NB-95 < 2.900 17-NOV-05 I-131 < 8.200 17-NOV-05 CS-134 < 2.300 17-NOV-05 CS-137 < 5.000 17-NOV-05 BA-LA-140 < 6.000 17-NOV-05 H-3 9533.000+/- 276.000 15-DEC-05 MN-54 < 3.100 15-DEC-05 CO-58 < - 2.600 15-DEC-05 FE-59 < 10.400 15-DEC-05 CO-60 < 1.700 15-DEC-05 ZN-65 3.500 15-DEC-05 ZR-NB-95 < 3.700 15-DEC-05 1-131 < 8.700 15-DEC-05 CS-134 < 3.600 15-DEC-05 CS-137 < 6.300 15-DEC-05 BA-LA-140 < 5.300 15-DEC-05 H-3 9882.000+/- 285.000 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 26

Exposure Pathway - Waterborne Ground Water Location B-12 Collection Nuclide : Concentration Duplicate Date t lI (pCi/liter) Analysis 11-FEB-05 MN-54 < 3.800 11-FEB-05 CO-58 < 3.100 11-FEB-0s FE-59 < 8.200 11-FEB-05 CO-60 < 5.500 11-FEB-05 ZN-65 < 7.800 11-FEB-05 ZR-NB-95 < 5.900 11-FEB-0s CS-134 < 4.900 11-FEB-05 CS-137 < 6.000 11-FEB-0s BA-LA-140 < 8.000 11-FEB-05 H-3 < 142.000 11-FEB-0s I-131 (CHEM) < 0.320 11-MAY-05 MN-54 < 4.800 11-MAY-05 CO-58 < 4.100 11-MAY-05 FE-59 < 5.000 11-MAY-05 CO-60 < 3.800 11-MAY-05 ZN-65 < 8.200 11-MAY-05 ZR-NB-95 < 3.400 11-MAY-0s CS-134 < 5.200 11-MAY-05 CS-137 < 3.600 11-MAY-0s BA-LA-140 < 3.800 11-MAY-05 H-3 < 145.000 11-MAY-0s I-131 (CHEM) < 0.346 11-AUG-05 MN-54 < 2.600 11-AUG-05 CO-58 < 3.500 11-AUG-05 FE-59 < 3.700 11-AUG-OS CO-60 < 2.900 11-AUG-05 ZN-65 < 3.900 11-AUG-0s ZR-NB-95 < 5.400 11-AUG-05 CS-134 < 1.900 11-AUG-05 CS-137 < 4.100 11-AUG-05 BA-LA-140 < 2.900 11-AUG-0s H-3 < 173.000 11-AUG-0s I-131 (CHEM) < 0.204 10-NOV-0s MN-54 < 2.100 10-NOV-05 CO-58 < 2.600 10-NOV-05 FE-59 < 6.900 10-NOV-05 CO-60 < 1.900 10-NOV-0s ZN-65 < 2.300 10-NOV-0s ZR-NB-95 < 3.800 10-NOV-05 CS-134 < 4.500 10-NOV-05 CS-137 < 3.400 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 27

Exposure Pathway - Waterborne Ground Water Location B-12 Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 10-NOV-05 BA-LA-140 < 2.900 10-NOV-05 H-3 < 157.000 10-NOV-05 I-131 (CHEM) < 0.426 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 28

Exposure Pathway - Waterborne Ground Water Location C-10 Collection Nuclide ' I? D S Concentration Duplicate Date I : -A (pCilLiter) Analysis 11-FEB-05 MN-54 4.000 11-FEB-05 CO-58 4.800 11-FEB-05 FE-59 6.300 11-FEB-05 CO-60 4.600 11-FEB-05 ZN-65 6.500 11-FEB-05 ZR-NB-95 5.900 11-FEB-05 CS-134 4.700 11-FEB-05 CS-137 4.500 11-FEB-05 BA-LA-140 4.500 11-FEB-05 H-3 142.000 11-FEB-05 I-131 (CHEM) 0.317 11-MAY-05 MN-54 4.800 11-MAY-05 CO-58 4.800 11-MAY-05 FE-59 12.500 11-MAY-05 CO-60 1.800 11-MAY-05 ZN-65 5.700 11-MAY-05 ZR-NB-95 3.300 11-MAY-05 CS-134 6.100 11-MAY-05 CS-137 6.300 11-MAY-05 BA-LA-140 6.700 11-MAY-05 H-3 145.000 11-MAY-05 I-131 (CHEM) 0.322 11-AUG-05 MN-54 3.500 11-AUG-05 CO-58 2.800 11-AUG-05 FE-59 4 .100 11-AUG-05 CO-60 1.000 11-AUG-05 ZN-65 2.600 11-AUG-05 ZR-NB-95 2.500 11-AUG-05 CS-134 3.600 11-AUG-05 CS-137 2.300 11-AUG-05 BA-LA-140 4.700 11-AUG-05 H-3 204.000 +/- 94.000 11-AUG-05 H-3 318.000 +/- 111.000 ReCount 11-AUG-05 I-131 (CHEM) 0.177 29-SEP-05 MN-54 6.100 29-SEP-05 CO-58 3.300 29-SEP-05 FE-59 5.500 29-SEP-05 CO-60 2.200 29-SEP-05 ZN-65 4.600 29-SEP-05 ZR-NB-95 3.600 29-SEP-05 CS-134 3.400 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 29

Exposure Pathway - Waterborne Ground Water Location C-10 Collection Nuclide  ;: 0 . Concentration Duplicate Date (pCi/Liter) Analysis 29-SEP-05 CS-137 < 4.700 29-SEP-05 BA-LA-140 < 3.500 29-SEP-05 H-3 < 170.000 29-SEP-05 I-131 (CHEM) < 0.321 10-NOV-05 MN-54 < 4.000 10-NOV-OS CO-58 < 4.500 10-NOV-05 FE-59 < 7.800 10-NOV-05 CO-60 < 4.700 10-NOV-05 ZN-65 < 7.500 10-NOV-05 ZR-NB-95 < 6.000 10-NOV-05 CS-134 < 4.700 10-NOV-05 CS-137 < 5.100 10-NOV-05 BA-LA-140 < 3.200 10-NOV-05 H-3 < 157.000 10-NOV-05 I-131 (CHEM) < 0.391 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 30

Exposure Pathway - Waterborne Ground Water Location C-49 i

f Collection Nuclide Concentration Duplicate Date (pCiULiter) Analysis 11-FEB-05 MN-54 4.000 11-FEB-05 CO-58 4.900 11-FEB-05 FE-59 7.900 11-FEB-05 CO-60 4.700 11-FEB-05 ZN-65 7.000 11-FEB-05 ZR-NB-95 4.000 11-FEB-05 CS-134 7.800 11-FEB-05 CS-137 4.400 11-FEB-05 BA-LA-140 9.000 11-FEB-05 H-3 142.000 11-FEB-05 I-131 (CHEM) 0.341 11-MAY-05 MN-54 5.800 1 11-MAY-05 MN-54 6.000 Duplicate 11-MAY-05 CO-58 3.600 1 11-MAY-05 CO-58 4.500 Duplicate 11-MAY-05 FE-59 8.400 1 11-MAY-05 FE-s9 5.900 Duplicate 11-MAY-05 CO-60 4.200 1 li-MAY-05 CO-60 3.900 Duplicate li-MAY-05 ZN-65 3.800 1 11-MAY-05 ZN-65 10.700 Duplicate 11-MAY-05 ZR-NB-95 3.500 1 11-MAY-05 ZR-NB-95 4.200 Duplicate 11-MAY-05 CS-134 2.700 1 11-MAY-05 CS-134 4.400 Duplicate 11-MAY-05 CS-137 5.200 1 11-MAY-05 CS-137 6.900 Duplicate 11-MAY-05 BA-LA-140 5.400 1 11-MAY-05 BA-LA-140 4.100 Duplicate 11-MAY-05 H-3 145.000 1 11-MAY-05 H-3 145.000 Duplicate 11-MAY-05 I-131 (CHEM) 0.442 1 11-MAY-05 I-131 (CHEM) 0.410 Duplicate 11-AUG-05 MN-54 4.400 11-AUG-05 CO-58 6.000 11-AUG-05 FE-59 7.900 11-AUG-05 CO-60 2.100 11-AUG-05 ZN-65 14.300 11-AUG-05 ZR-NB-95 6.400 11-AUG-05 CS-134 5.500 11-AUG-05 CS-137 6.600 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 31

Exposure Pathway - Waterbome Ground Water Location C-49 Collection Nuclide Concentration Duplicate Date (pCIILIter) I Analysis 11-AUG-05 BA-LA-140 < 7.200 11-AUG-05 H-3 217.000+/- 95.000 11-AUG-05 H-3 256.000 +/- 109.000 ReCount 11-AUG-05 I-131 (CHEM) < 0.174 29-SEP-05 MN-54 < 4.200 29-SEP-05 CO-58 < 2.900 29-SEP-05 FE-59 < 10.600 29-SEP-05 CO-60 < 6.200 29-SEP-05 ZN-65 < 4.500 29-SEP-05 ZR-NB-95 < 5.000 29-SEP-05 CS-134 < 3.900 29-SEP-05 CS-137 < 6.000 29-SEP-05 BA-LA-140 < 4.500 29-SEP-05 H-3 < 170.000 29-SEP-05 I-131 (CHEM) < 0.317 10-NOV-05 MN-54 < 3.400 10-NOV-05 CO-58 < 3.500 10-NOV-05 FE-59 < 11.700 10-NOV-05 CO-60 < 4.200 10-NOV-05 ZN-65 < 9.100 10-NOV-05 ZR-NB-95 < 3.500 10-NOV-05 CS-134 < 4.800 10-NOV-05 CS-137 < 5.400 10-NOV-05 BA-LA-140 < 7.300 10-NOV-05 H-3 < 157.000 10-NOV-05 I-131 (CHEM) < 0.324 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 32

Exposure Pathway - Waterborne Ground Water Location F-I Collection Nuclide  : , Concentration Duplicate Date I"I I (pCiILlter) Analysis 15-DEC-05 MN-54 < 3.200 15-DEC-05 CO-58 < 4.500 15-DEC-05 FE-59 < 7.300 15-DEC-05 CO-60 < 4.000 15-DEC-05 ZN-65 < 4.400 15-DEC-05 ZR-NB-95 < 5.800 15-DEC-05 CS-134 < 4.900 15-DEC-05 CS-137 < 5.000 15-DEC-05 BA-LA-140 < 4.900 15-DEC-05 H-3 < 184.000 15-DEC-05 I-131 (CHEM) < 0.234 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 33

Exposure Pathway - Waterborne Ground Water Location G-2 Collection Nuclide Concentration Duplicate It Date (pCVULter) Analysis 30-NOV-05 MN-54 < 5.000 30-NOV-05 CO-58 < 4.800 30-NOV-05 FE-59 < 7.300 30-NOV-05 CO-60 < 3.400 30-NOV-05 ZN-65 < 9.400 30-NOV-05 ZR-NB-95 < 6.000 30-NOV-05 CS-134 < 4.700 30-NOV-05 CS-137 < 5.000 30-NOV-05 BA-LA-140 < 3.400 30-NOV-O5 H-3 < 181.000 30-NOV-05 I-131 (CHEM) < 0.401 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 34

Exposure Pathway - Waterborne Ground Water Location J-1 Collection Nuclide Concentration Duplicate Date (pCi/Lfter) Analysis 11-FEB-05 MN-54 < 8.300 11-FEB-05 CO-58 < 4.500 11-FEB-05 FE-59 < 10.900 11-FEB-05 CO-60 < 3.000 11-FEB-05 ZN-65 < 14.400 11-FEB-05 ZR-NB-95 < 6.200 11-FEB-05 CS-134 < 10.100 11-FEB-05 CS-137 < 7.500 11-FEB-05 BA-LA-140 < 8.500 11-FEB-05 H-3 < 142.000 11-FEB-05 I-131 (CHEM) < 0.295 11-MAY-05 MN-54 < 3.300 11-MAY-05 CO-58 < 5.000 11-MAY-05 FE-59 < 9.600 11-MAY-05 CO-60 < 6.100 11-MAY-05 ZN-65 < 8.400 11-MAY-05 ZR-NB-95 < 7.200 11-MAY-05 CS-134 < 3.500 11-MAY-05 CS-137 < 3.400 11-MAY-05 BA-LA-140 < 7.000 11-MAY-05 H-3 < 145.000 11-MAY-05 I-131 (CHEM) < 0.354 10-AUG-05 MN-54 < 3.000 10-AUG-05 CO-58 < 4.100 10-AUG-05 FE-59 < 9.600 10-AUG-OS CO-60 < 3.600 10-AUG-05 ZN-65 < 5.200 10-AUG-05 ZR-NB-95 c 4.300 10-AUG-05 CS-134 < 3.500 10-AUG-05 CS-137 c 3.400 10-AUG-05 BA-LA-140 < 5.800 10-AUG-05 H-3 < 173.000 10-AUG-05 I-131 (CHEM) < 0.200 10-NOV-05 MN-54 < 3.200 10-NOV-05 CO-58 < 3.400 10-NOV-05 FE-59 < 6.200 10-NOV-05 CO-60 < 3.900 10-NOV-05 ZN-65 < 6.300 10-NOV-05 ZR-NB-95 < 3.300 10-NOV-05 CS-134 < 3.800 10-NOV-05 CS-137 < 2.500 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -35

Exposure Pathway - Waterborne Ground Water Location J-1 Collection Nuclide Concentration Duplicate Date (pCiILiter) Analysis 10-NOV-05 BA-LA-140 < 4.100 10-NOV-05 H-3 < 157.000 10-NOV-05 I-131 (CHEM) < 0.272 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 36

Exposure Pathway - Waterborne Ground Water Location J-2 I

Collection Nuclide D  ; Concentration Duplicate I Date (pCilLiter) Analysis 30-NOV-05 MN-54 < 2.800 30-NOV-05 CO-58 < 3.000 30-NOV-05 FE-59 < 2.800 30-NOV-05 CO-60 < 2.100 30-NOV-05 ZN-65 < 12.800 30-NOV-05 ZR-NB-95 < 4.200 30-NOV-05 CS-134 < 6.400 30-NOV-05 CS-137 < 2.600 30-NOV-05 BA-LA-140 < 2.000 30-NOV-05 H-3 < 181.000 30-NOV-05 I-131 (CHEM) < 0.392 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 37

Exposure Pathway - Waterborne Ground Water Location L-49 Collection Nuclide Concentration Duplicate Date (pCULiter) Analysis 11-FEB-05 MN-54 5.700 11-FEB-05 CO-58 5.200 11-FEB-05 FE-59 3.000 11-FEB-05 CO-60 4.500 11-FEB-05 ZN-65 3.200 11-FEB-05 ZR-NB-95 3.700 11-FEB-05 CS-134 4.100 11-FEB-05 CS-137 6.300 11-FEB-05 BA-LA-140 7.100 11-FEB-05 H-3 142.000 11-FEB-05 I-131 (CHEM) 0.300 11-MAY-05 MN-54 3.600 11-MAY-05 CO-58 1.700 11-MAY-05 FE-59 4.500 11-MAY-05 CO-60 2.500 11-MAY-05 ZN-65 7.700 11-MAY-05 ZR-NB-95 4.200 11-MAY-05 CS-134 3.600 11-MAY-05 CS-137 3.700 11-MAY-05 BA-LA-140 4 .000 11-MAY-05 H-3 145.000 11-MAY-05 I-131 (CHEM) 0.302 11-AUG-05 MN-54 6.400 11-AUG-05 CO-58 5.700 11-AUG-05 FE-59 11.800 11-AUG-05 CO-60 4.400 11-AUG-05 ZN-65 8.700 11-AUG-05 ZR-NB-95 5.700 11-AUG-05 CS-134 7.700 11-AUG-05 CS-137 6.400 11-AUG-05 BA-LA-140 6.200 11-AUG-05 H-3 173.000 11-AUG-05 I-131 (CHEM) 0.173 10-NOV-05 MN-54 7.200 10-NOV-05 CO-58 3.900 10-NOV-05 FE-59 4.900 10-NOV-05 CO-60 2.400 10-NOV-05 ZN-65 4.200 10-NOV-05 ZR-NB-95 3.100 10-NOV-0s CS-134 4.900 10-NOV-0s CS-137 4.000 2005 Annual Radiological Environmental Operating Report golf Creek Generating Station Page C - 38

Exposure Pathway - Waterborne Ground Water Location L-49 if Collection Nuclide : ii f Concentration Duplicate Date I l: (pCi/Liter) Analysis 10-NOV-05 BA-LA-140 < 4.900 10-NOV-05 H-3 < 157.000 10-NOV-05 I-131 (CHEM) < 0.275 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 39

Exposure Pathway - Waterborne Drinking Water Location BW-1 5 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 03-FEB-05 MN-54 3.600 03-FEB-05 CO-58 2.800 03-FEB-05 FE-59 < 3.300 03-FEB-05 CO-60 < 1.100 03-FEB-05 ZN-65 < 3.400 03-FEB-05 ZR-NB-95 < 4.000 03-FEB-05 CS-134 < 3.700 03-FEB-05 CS-137 < 3.300 03-FEB-05 BA-LA-140 < 1.400 03-FEB-05 GROSS BETA 3.506+/- 0.997 03-FEB-05 I-131 (CHEM) < 0.304 02-MAR-05 MN-54 < 5.400 02-MAR-05 CO-58 < 4.700 02-MAR-05 FE-59 < 7.600 02-MAR-05 CO-60 < 5.200 02-MAR-05 ZN-65 < 6.900 02-MAR-05 ZR-NB-95 < 4.400 02-MAR-05 CS-134 < 4.700 02-MAR-05 CS-137 < 3.600 02-MAR-05 BA-LA-140 < 3.700 02-MAR-05 GROSS BETA 4.240+/- 1.293 02-MAR-05 I-131 (CHEM) < 0.438 06-APR-05 MN-54 < 3.100 06-APR-05 CO-58 < 3.400 06-APR-05 FE-59 < 5.900 06-APR-05 CO-60 < 1.900 06-APR-05 ZN-65 < 2.500 06-APR-05 ZR-NB-95 < 1.800 06-APR-05 CS-134 < 3.000 06-APR-05 CS-137 < 3.700 06-APR-05 BA-LA-140 < 2.400 06-APR-05 GROSS BETA 4.071+/- 1.276 06-APR-05 1-131 (CHEM) < 0.304 05-MAY-05 MN-54 < 5.600 05-MAY-05 CO-58 < 4.300 05-MAY-05 FE-59 c 8.600 05-MAY-05 CO-60 < 3.500 05-MAY-05 ZN-65 < 8.400 05-MAY-05 ZR-NB-95 < 6.100 05-MAY-05 CS-134 < 5.400 05-MAY-05 CS-137 < 5.600 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -40

Exposure Pathway - Waterborne Drinking Water Location BW-1 5 Collection Nuclide Concentration Duplicate Date (pCi/Liter) Analysis 05-MAY-05 BA-LA-140 9.900 05-MAY-05 GROSS BETA 3.369+/- 0.743 05-MAY-05 I-131 (CHEM) < 0.435 01-JUN-05 MN-54 < 3.100 01-JUN-05 CO-58 < 2.400 01-JUN-05 FE-59 < 3.900 01-JUN-05 CO-60 < 2.500 01-JUN-05 ZN-65 < 5.800 01-JUN-05 ZR-NB-95 < 3.900 01-JUN-05 CS-134 < 4.200 01-JUN-05 CS-137 < 2.000 01-JUN-05 BA-LA-140 < 2.200 01-JUN-05 GROSS BETA 1.903+/- 0.619 01-JUN-05 I-131 (CHEM) < 0.323 07-JUL-05 MN-54 < 5.800 07-JUL-05 CO-58 < 4.300 07-JUL-05 FE-59 < 11.200 07-JUL-05 CO-60 < 3.500 07-JUL-05 ZN-65 < 7.000 07-JUL-05 ZR-NB-95 < 3.100 07-JUL-05 CS-134 < 6.000 07-JUL-05 CS-137 < 7.200 07-JUL-05 BA-LA-140 < 6.300 07-JUL-05 GROSS BETA 2.899+/- 0.678 07-JUL-05 I-131 (CHEM) < 0.354 05-AUG-OS MN-54 < 5.200 05-AUG-05 CO-58 < 4.500 05-AUG-05 FE-59 < 6.800 05-AUG-05 CO-60 < 4.400 05-AUG-05 ZN-65 < 6.200 05-AUG-05 ZR-NB-95 < 5.600 05-AUG-05 CS-134 < 4.000 05-AUG-05 CS-137 < 5.500 05-AUG-05 BA-LA-140 < 6.800 05-AUG-05 GROSS BETA 5.191+/- 1.212 05-AUG-05 I-131 (CHEM) < 0.223 07-SEP-05 MN-54 < 5.200 07-SEP-05 CO-58 < 3.600 07-SEP-05 FE-59 < 4.300 07-SEP-05 CO-60 < 2.200 07-SEP-05 ZN-65 < 3.700 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 41

Exposure Pathway - Waterborne Drinking Water Location BW-15 Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 07-SEP-05 ZR-NB-95 < 3.100 07-SEP-05 CS-134 < 2.800 07-SEP-05 CS-137 < 6.000 07-SEP-05 BA-LA-140 < 3.500 07-SEP-05 GROSS BETA 2.337+/- 0.627 07-SEP-05 I-131 (CHEM) < 0.181 05-OCT-05 MN-54 < 4.100 05-OCT-05 CO-58 < 5.700 05-OCT-05 FE-59 < 8.100 05-OCT-05 CO-60 < 3.600 05-OCT-05 ZN-65 < 7.100 05-OCT-05 ZR-NB-95 < 3.900 05-OCT-05 CS-134 < 4.100 05-OCT-05 CS-137 < 5.100 05-OCT-05 BA-LA-140 < 3.500 05-OCT-05 GROSS BETA 5.386+/- 1.234 05-OCT-05 I-131 (CHEM) < 0.297 01-NOV-05 MN-54 < 5.200 01-NOV-05 CO-58 < 3.500 01-NOV-05 FE-59 < 6.800 01-NOV-05 CO-60 < 5.600 01-NOV-05 ZN-65 < 7.800 01-NOV-05 ZR-NB-95 < 6.400 01-NOV-05 CS-134 < 2.900 01-NOV-05 CS-137 < 3.600 01-NOV-OS BA-LA-140 < 3.400 01-NOV-05 GROSS BETA 6.757+/- 1.340 01-NOV-05 I-131 (CHEM) < 0.371 09-DEC-05 MN-54 < 4.300 09-DEC-05 CO-58 < 2.900 09-DEC-05 FE-59 < 6.800 09-DEC-05 CO-60 < 2.900 09-DEC-05 ZN-65 < 9.100 09-DEC-05 ZR-NB-95 < 6.700 09-DEC-05 CS-134 < 6.200 09-DEC-05 CS-137 < 5.400 09-DEC-05 BA-LA-140 < 3.900 09-DEC-05 GROSS BETA 2.894+/- 0.682 09-DEC-05 I-131 (CHEM) < 0.352 05-JAN-06 MN-54 < 3.500 05-JAN-06 CO-58 < 3.400 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -42

Exposure Pathway - Waterbome Drinking Water Location BW-1 5 Collection Nuclide i I Concentration Duplicate Date (pCi/Liter) Analysis 05-JAN-06 FE-59 < 4.200 05-JAN-06 CO-60 < 4.300 05-JAN-06 ZN-65 < 4.000 05-JAN-06 ZR-NB-95 < 3.900 05-JAN-06 CS-134 < 3.800 05-JAN-06 CS-137 < 2.900 05-JAN-06 BA-LA-140 < 2.300 05-JAN-06 GROSS BETA 4.319+/- 1.102 05-JAN-06 I-131 (CHEM) < 0.316 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 43

Exposure Pathway - Waterborne Drinking Water Location IO-DW Collection Nuclide Concentration Duplicate Date (pCiULiter) Analysis 03-FEB-05 MN-54 < 3.300 1 03-FEB-05 MN-54 < 4.200 Duplicate 03-FEB-05 CO-58 < 2.600 1 03-FEB-05 CO-58 3.900 Duplicate 03-FEB-05 FE-59 < 3.200 1 03-FEB-05 FE-59 < 11.400 Duplicate 03-FEB-05 CO-60 < 2.000 1 03-FEB-05 CO-60 < 5.600 Duplicate 03-FEB-05 ZN-65 < 4.100 1 03-FEB-05 ZN-65 < 7.000 Duplicate 03-FEB-05 ZR-NB-95 < 3.700 1 03-FEB-05 ZR-NB-95 < 3.800 Duplicate 03-FEB-05 CS-134 < 3.200 1 03-FEB-05 CS-134 < 3.300 Duplicate 03-FEB-05 CS-137 < 3.500 1 03-FEB-05 CS-137 < 3.800 Duplicate 03-FEB-05 BA-LA-140 < 3.800 1 03-FEB-05 BA-LA-140 < 8.600 Duplicate 03-FEB-05 GROSS BETA 3.935+/- 1.176 1 03-FEB-05 GROSS BETA 3.616+/- 1.097 Duplicate 03-FEB-05 I-131 (CHEM) < 0.316 1 03-FEB-05 I-131 (CHEM) < 0.341 Duplicate 02-MAR-05 MN-54 < 6.300 02-MAR-05 CO-58 < 4.300 02-MAR-05 FE-59 < 5.900 02-MAR-05 CO-60 < 5.000 02-MAR-05 ZN-65 < 6.500 02-MAR-05 ZR-NB-95 < 4.400 02-MAR-05 CS-134 < 4.500 02-MAR-05 CS-137 < 3.900 02-MAR-05 BA-LA-140 < 10.900 02-MAR-05 GROSS BETA 3.996+/- 1.172 02-MAR-05 I-131 (CHEM) < 0.450 06-APR-05 MN-54 < 1.600 06-APR-05 CO-58 < 3.000 06-APR-05 FE-59 < 5.500 06-APR-05 CO-60 < 2.500 06-APR-05 ZN-65 < 3.200 06-APR-05 ZR-NB-95 < 3.600 06-APR-05 CS-134 < 4.300 06-APR-05 CS-137 < 2.700 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -44

Exposure Pathway - Waterborne Drinking Water Location IO-DW Collection Nuclide Concentration Duplicate Date (pCUILiter) Analysis 06-APR-05 BA-LA-140 < 1.800 06-APR-05 GROSS BETA 5.392+/- 1.208 06-APR-05 I-131 (CHEM) < 0.323 05-MAY-05 MN-54 < 3.000 05-MAY-05 CO-58 < 4.800 05-MAY-05 FE-59 < 7.500 05-MAY-05 CO-60 < 5.900 05-MAY-05 ZN-65 < 8.400 05-MAY-05 ZR-NB-95 < 3.600 05-MAY-05 CS-134 < 4.500 05-MAY-05 CS-137 < 2.300 05-MAY-05 BA-LA-140 < 3.900 05-MAY-05 GROSS BETA 2.885+/- 0.711 05-MAY-05 I-131 (CHEM) < 0.348 01-JUN-05 MN-54 < 3.300 01-JUN-05 CO-58 < 4.600 01-JUN-05 FE-59 < 5.300 01-JUN-05 CO-60 < 3.300 01-JUN-05 ZN-65 < 4.800 01-JUN-05 ZR-NB-95 < 2.600 01-JUN-05 CS-134 < 2.800 01-JUN-05 CS-137 < 3.300 01-JUN-05 BA-LA-140 < 5.100 01-JUN-05 GROSS BETA 1.833+/- 0.593 01-JUN-05 I-131 (CHEM) < 0.301 07-JUL-05 MN-54 < 4.100 07-JUL-05 CO-58 < 6.400 07-JUL-05 FE-59 < 7.800 07-JUL-05 CO-60 < 4.200 07-JUL-05 ZN-65 < 8.500 07-JUL-05 ZR-NB-95 < 3.800 07-JUL-05 CS-134 < 5.800 07-JUL-05 CS-137 < 6.200 07-JUL-05 BA-LA-140 < 5.300 07-JUL-05 GROSS BETA 2.434+/- 0.637 07-JUL-05 I-131 (CHEM) < 0.329 05-AUG-05 MN-54 < 6.400 05-AUG-05 CO-58 < 5.000 05-AUG-05 FE-59 < 5.100 05-AUG-05 CO-60 < 3.700 05-AUG-05 ZN-65 < 9.600 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -45

Exposure Pathway - Waterborne Drinking Water Location 1O-DW Collection Nuclide Concentration Duplicate Date M(pClLiter) Analysis 05-AUG-05 ZR-NB-95 < 3.200 05-AUG-05 CS-134 < 6.400 05-AUG-05 CS-137 < 5.800 05-AUG-05 BA-LA-140 < 5.000 05-AUG-05 GROSS BETA 3.242+/- 1.010 05-AUG-05 I-131 (CHEM) < 0.222 07-SEP-05 MN-54 < 3.600 07-SEP-05 CO-58 < 3.900 07-SEP-05 FE-59 < 10.400 07-SEP-05 CO-60 < 2.800 07-SEP-05 ZN-65 < 5.000 07-SEP-05 ZR-NB-95 < 3.900 07-SEP-05 CS-134 < 4.400 07-SEP-05 CS-137 < 6.700 07-SEP-05 BA-LA-140 < 4.500 07-SEP-05 GROSS BETA 3.140+/- 0.692 07-SEP-05 I-131 (CHEM) < 0.192 05-OCT-05 MN-54 < 5.300 05-OCT-05 CO-58 < 4.500 05-OCT-05 FE-59 < 8.000 05-OCT-05 CO-60 < 2.500 05-OCT-05 ZN-65 < 9.500 05-OCT-05 ZR-NB-95 c 2.200 05-OCT-05 CS-134 < 5.400 05-OCT-05 CS-137 < 6.900 05-OCT-OS BA-LA-140 < 4.200 05-OCT-05 GROSS BETA 5.500+/- 1.130 05-OCT-05 I-131 (CHEM) < 0.265 01-NOV-05 MN-54 < 4.400 01-NOV-05 CO-58 < 5.100 01-NOV-05 FE-59 < 15.600 01-NOV-05 CO-60 c 3.400 01-NOV-05 ZN-65 < 5.800 01-NOV-05 ZR-NB-95 < 2.900 01-NOV-05 CS-134 < 4.300 01-NOV-05 CS-137 < 3.800 01-NOV-05 BA-LA-140 < 4.900 01-NOV-05 GROSS BETA 3.551+/- 1.174 01-NOV-05 I-131 (CHEM) < 0.344 09-DEC-05 MN-54 < 3.200 09-DEC-05 CO-58 3.600 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -46

Exposure Pathway - Waterborne Drinking Water Location IO-DW i Collection Nuclide Concentration Duplicate i .: Date (pCULiter) Analysis 09-DEC-05 FE-59 < 8.400 09-DEC-05 CO-60 < 4.000 09-DEC-05 ZN-65 < 7.600 09-DEC-05 ZR-NB-95 < 5.900 09-DEC-05 CS-134 < 3.600 09-DEC-05 CS-137 < 4.700 09-DEC-05 BA-LA-140 < 4.100 09-DEC-05 GROSS BETA 2.994+/- 0.710 09-DEC-0s I-131 (CHEM) < 0.217 05-JAN-06 MN-54 < 3.300 05-JAN-06 CO-58 < 0.700 05-JAN-06 FE-59 < 5.000 05-JAN-06 CO-60 < 2.700 05-JAN-06 ZN-65 < 2.500 05-JAN-06 ZR-NB-95 < 3.300 05-JAN-06 CS-134 < 4.500 05-JAN-06 CS-137 < 2.400 05-JAN-06 BA-LA-140 < 2.100 05-JAN-06 GROSS BETA 5.165x/- 1.228 05-JAN-06 I-131 (CHEM) < 0.338 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 47

Exposure Pathway - Waterborne Drinking Water Location NF-DW Collection Nuclide Concentration Duplicate IIDate (pCULKer) Analysis 03-FEB-05 MN-54 < 5.200 03-FEB-05 CO-58 < 3.100 03-FEB-05 FE-59 < 6.800 03-FEB-05 CO-60 < 4.400 03-FEB-05 ZN-65 < 3.500 03-FEB-05 ZR-NB-95 < 4.500 03-FEB-05 CS-134 < 6.300 03-FEB-05 CS-137 < 5.300 03-FEB-05 BA-LA-140 < 2.300 03-FEB-05 GROSS BETA 3.699+/- 1.035 03-FEB-os I-131 (CHEM) < 0.245 02-MAR-0s MN-54 < 3.700 02-MAR-05 CO-58 < 4.700 02-MAR-05 FE-59 < 4.000 02-MAR-0s CO-60 < 2.200 02-MAR-0s ZN-65 < 5.300 02-MAR-05 ZR-NB-95 < 4.300 02-MAR-05 CS-134 < 3.100 02-MAR-05 CS-137 < 5.300 02-MAR-05 BA-LA-140 < 3.700 02-MAR-05 GROSS BETA 3.429+/- 1.186 02-MAR-05 I-131 (CHEM) < 0.348 06-APR-0s MN-54 < 4.400 06-APR-05 CO-58 < 3.600 06-APR-05 FE-59 < 7.900 06-APR-os CO-60 < 5.600 06-APR-05 ZN-65 < 4.200 06-APR-05 ZR-NB-95 < 1.700 06-APR-05 CS-134 < 4.400 06-APR-0s CS-137 < 3.300 06-APR-05 BA-LA-140 < 4.100 06-APR-05 GROSS BETA 3.726+/- 0.628 06-APR-05 I-131 (CHEM) < 0.309 05-MAY-05 MN-54 < 1.900 05-MAY-05 CO-58 < 2.300 05-MAY-05 FE-s9 < 5.200 05-MAY-05 CO-60 < 2.200 05-MAY-05 ZN-65 < 7.300 05-MAY-05 ZR-NB-95 < 5.100 05-MAY-05 CS-134 < 2.400 05-MAY-05 CS-137 < 2.400 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 48

Exposure Pathway - Waterbome Drinking Water Location NF-DW Collection Nuclide I Concentration Duplicate Date (pCUlLiter) Analysis 05-MAY-05 BA-LA-140 4.600 05-MAY-05 GROSS BETA 3.341+/- 1.030 05-MAY-05 I-131 (CHEM) < 0.470 01-JUN-05 MN-54 < 3.100 01-JUN-05 CO-58 < 2.100 01-JUN-05 FE-59 c 3.900 01-JUN-05 CO-60 < 2.600 01-JUN-05 ZN-65 < 5.300 01-JUN-05 ZR-NB-95 < 1.700 01-JUN-05 CS-134 < 2.900 01-JUN-05 CS-137 < 3.600 01-JUN-05 BA-LA-140 < 1.500 01-JUN-05 GROSS BETA 3.217+/- 0.734 01-JUN-05 I-131 (CHEM) < 0.288 07-JUL-05 MN-54 < 3.600 07-JUL-05 CO-58 < 3.100 07-JUL-05 FE-59 < 7.400 07-JUL-05 CO-60 < 3.400 07-JUL-05 ZN-65 < 7.600 07-JUL-05 ZR-NB-95 < 3.300 07-JUL-05 CS-134 < 1.800 07-JUL-05 CS-137 < 4.500 07-JUL-05 BA-LA-140 < 6.300 07-JUL-05 GROSS BETA 2.413+/- 0.661 07-JUL-05 I-131 (CHEM) < 0.344 05-AUG-05 MN-54 < 3.900 05-AUG-05 CO-58 < 2.900 05-AUG-05 FE-59 < 5.900 05-AUG-05 CO-60 < 2.500 05-AUG-05 ZN-65 < 4.600 05-AUG-05 ZR-NB-95 < 2.600 05-AUG-05 CS-134 < 1.600 05-AUG-05 CS-137 < 3.500 05-AUG-05 BA-LA-140 < 4.900 05-AUG-05 GROSS BETA 4.320+/- 1.164 05-AUG-05 I-131 (CHEM) < 0.211 07-SEP-05 MN-54 < 3.900 07-SEP-05 CO-58 < 2.400 07-SEP-05 FE-59 < 8.000 07-SEP-05 CO-60 < 3.100 07-SEP-05 ZN-65 < 5.100 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 49

Exposure Pathway - Waterborne Drinking Water Location NF-DW Collection Nuclide Concentration Duplicate Date (pCUlLiter) Analysis 07-SEP-05 ZR-NB-95 < 4.200 07-SEP-05 CS-134 < 5.100 07-SEP-05 CS-137 < 5.400 07-SEP-05 BA-LA-140 < 2.900 07-SEP-05 GROSS BETA 2.473+/- 0.684 07-SEP-05 I-131 (CHEM) < 0.317 05-OCT-05 MN-54 < 5.300 05-OCT-05 CO-58 < 2.100 05-OCT-05 FE-59 < 7.500 05-OCT-05 CO-60 < 2.200 05-OCT-05 ZN-65 < 11.100 05-OCT-05 ZR-NB-95 < 2.300 05-OCT-05 CS-134 < 4.700 05-OCT-05 CS-137 < 5.000 05-OCT-05 BA-LA-140 < 3.000 05-OCT-05 GROSS BETA 5.099+/- 1.201 05-OCT-05 I-131 (CHEM) < 0.268 01-NOV-05 MN-54 < 4.000 01-NOV-05 CO-58 < 3.100 01-NOV-05 FE-59 < 4.400 01-NOV-05 CO-60 < 3.200 01-NOV-05 ZN-65 < 4.200 01-NOV-05 ZR-NB-95 < 3.700 01-NOV-05 CS-134 < 5.400 01-NOV-05 CS-137 < 3.500 01-NOV-OS BA-LA-140 < 4.100 01-NOV-05 GROSS BETA 4.203+/- 1.107 01-NOV-05 I-131 (CHEM) < 0.310 09-DEC-05 MN-54 < 2.100 09-DEC-05 CO-58 < 3.500 09-DEC-05 FE-59 < 4.100 09-DEC-05 CO-60 < 2.800 09-DEC-05 ZN-65 < 4.600 09-DEC-05 ZR-NB-95 < 3.300 09-DEC-05 CS-134 < 3.300 09-DEC-05 CS-137 < 2.800 09-DEC-05 BA-LA-140 < 1.900 09-DEC-05 GROSS BETA 2.940+/- 0.745 09-DEC-05 I-131 (CHEM) 0.284 05-JAN-06 MN-54 4.600 05-JAN-06 CO-58 < 2.700 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 50

Exposure Pathway - Waterborne Drinking Water Location NF-DW Collection Nuclide - Concentration Duplicate Date (pCilLiter) Analysis 05-JAN-06 FE-59 < S.400 05-JAN-06 CO-60 < 2.800 05-JAN-06 ZN-65 < 4.200 05-JAN-06 ZR-NB-95 < 3.300 05-JAN-06 CS-134 < 3.300 05-JAN-06 CS-137 < 4.800 05-JAN-06 BA-LA-140 3.800 05-JAN-06 GROSS BETA 4.535+/- 1.253 05-JAN-06 I-131 (CHEM) 0.362 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 51

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location BW-1 5 Collection Nuclide Concentration Duplicate Date (pCiILiter) Analysis 06-APR-05 H-3 < 164.000 07-JUL-05 H-3 < 160.000 05-OCT-05 H-3 245.000 ++/- 85.000 05-OCT-05 H-3 248.000 s +/- 126.000 ReCount 05--JAN-06 H-3 < 144.000 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 52

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location IO-DW Collection Nuclide Concentration Duplicate Date (pCUiter) Analysis 06-APR-05 H-3 < 164.000 07-JUL-05 H-3 < 160.000 05-OCT-05 H-3 207.000 +/- 83.000 05-OCT-05 H-3 205.000 +/- 83.000 Duplicate 05-OCT-05 H-3 217.000 +/- 116.000 ReCount 05-OCT-05 H-3 244.000 +/- 116.000 Duplicate 05-JAN-06 H-3 < 144.000 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 53

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location NF-DW Collection Nuclide Concentration Duplicate Date (pCilLiter) Analysis 06-APR-05 H-3 < 164.000 1 06-APR-05 H-3 < 164.000 Duplicate 07-JUL-05 H-3 < 160.000 05-OCT-05 H-3 243.000 +/- 85.000 05-OCT-05 H-3 219.000 +/- 116.000 ReCount 05-JAN-06 H-3 < 145.000 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 54

Exposure Pathway - Waterborne Shoreline Sediment Location DC Gamma Spectrum Collection Nuclide 4 Concentration Duplicate Date (pCviKg Dry) Analysis 27-MAY-05 K-40 10953.000+/- 918.300 27-MAY-05 MN- 54 37.700 27-MAY-05 CO-58 43.000 27-MAY-05 FE-59 60.900 27-MAY-05 CO-60 34.000 27-MAY-05 ZN-65 83.600 27-MAY-05 CS-134 53.500 27-MAY-05 CS-137 36.500 27-OCT-05 K-40 10382.000+/- 876.600 27-OCT-05 MN-54 31.300 27-OCT-05 CO-58 33.000 27-OCT-05 FE-59 85.600 27-OCT-05 CO-60 30.000 27-OCT-05 ZN-65 76.400 27-OCT-05 CS-134 51.400 27-OCT-05 CS-137 < 36.400 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 55

Exposure Pathway - Waterborne Shoreline Sediment Location JRR Gamma Spectrum Collection Nuclide Concentration Duplicate Date (pCiIKg Dry) Analysis 10-JUN-05 K-40 11846.000+/- 998.800 10-JUN-05 MN-54 < 39.200 10-JUN-05 CO-58 < 53.800 10-JUN-05 FE-59 < 75.500 10-JUN-05 CO-60 < 46.300 10-JUN-05 ZN-65 < 93.100 10-JUN-05 CS-134 < 57.500 10-JUN-05 CS-137 81.900+/- 43.300 11-NOV-05 K-40 8643.400+l- 756.600 11-NOV-05 MN- 54 < 29.200 11-NOV-05 CO-58 < 36.600 11-NOV-05 FE-59 < 74.300 11-NOV-05 CO-60 < 32.200 11-NOV-05 ZN-65 < 67.100 11-NOV-05 CS-134 < 51.900 11-NOV-05 CS-137 56.700+l- 30.600 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 56

Exposure Pathway - Ingestion Fish Location JRR Gamma Spectrum & n-3 I Collection Sample Nuclide - Concentration Duplicate Date Description (pCi/Kg Wet) Analysis 10-JUN-05 COMMON CARP K-40 3003.300+/- 566.700 10-JUN-05 COMMON CARP MN- 54 < 13.200 10-JUN-05 COMMON CARP CO-58 < 15.600 10-JUN-05 COMMON CARP FE-59 < 36.700 10-JUN-05 COMMON CARP CO-60 < 16.300 10-JUN-05 COMMON CARP ZN-65 < 27.800 10-JUN-05 COMMON CARP CS-134 < 23.700 10-JUN-05 COMMON CARP CS-137 < 14.900 10-JUN-05 COMMON CARP H-3 < 126.000 10-JUN-05 LARGEMOUTH BASS K-40 3057.500+/- 409.100 1 10-JUN-05 LARGEMOUTH BASS K-40 3247.200+/- 528.400 Duplicate 10-JUN-05 LARGEMOUTH BASS MN-54 < 9.800 1 10-JUN-05 LARGEMOUTH BASS MN-54 < 18.800 Duplicate 10-JUN-05 LARGEMOUTH BASS CO-58 < 13.500 1 10-JUN-05 LARGEMOUTH BASS CO-58 < 16.600 Duplicate 10-JUN-05 LARGEMOUTH BASS FE-59 < 29.000 1 10-JUN-05 LARGEMOUTH BASS FE-59 < 48.500 Duplicate 10-JUN-05 LARGEMOUTH BASS CO-60 < 11.400 1 10-JUN-05 LARGEMOUTH BASS CO-60 < 12.800 Duplicate 10-JUN-05 LARGEMOUTH BASS ZN-65 < 16.400 1 10-JUN-05 LARGEMOUTH BASS ZN-65 < 32.100 Duplicate 10-JUN-05 LARGEMOUTH BASS CS-134 < 17.000 1 10-JUN-05 LARGEMOUTH BASS CS-134 < 33.200 Duplicate 10-JUN-05 LARGEMOUTH BASS CS-137 < 12.900 1 10-JUN-05 LARGEMOUTH BASS CS-137 < 21.000 Duplicate 10-JUN-05 LARGEMOUTH BASS H-3 < 131.000 1 10-JUN-05 LARGEMOUTH BASS H-3 < 131.000 Duplicate 10-JUN-05 WHITE CRAPPIE K-40 3177.600+/- 412.200 10-JUN-05 WHITE CRAPPIE MN-54 < 12.000 10-JUN-05 WHITE CRAPPIE CO-58 < 15.500 10-JUN-05 WHITE CRAPPIE FE-59 < 18.700 10-JUN-05 WHITE CRAPPIE CO-60 < 11.000 10-JUN-05 WHITE CRAPPIE ZN-65 < 27.900 10-JUN-05 WHITE CRAPPIE CS-134 < 14.100 10-JUN-05 WHITE CRAPPIE CS-137 < 15.200 10-JUN-05 WHITE CRAPPIE H-3 < 127.000 11-NOV-05 CHANNEL CATFISH K-40 3298.400+/- 393.600 11-NOV-05 CHANNEL CATFISH MN-54 < 13.200 11-NOV-05 CHANNEL CATFISH CO-58 < 14.000 11-NOV-05 CHANNEL CATFISH FE-59 < 18.400 11-NOV-05 CHANNEL CATFISH CO-60 < 15.100 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 57

Exposure Pathway - Ingestion Fish Location JRR Gamma Spectrum & H-3 1"Collection Sample Nuclide I Concentration Duplicate e Date Description I I t (pCiIKg Wet) Analysis 11-NOV-05 CHANNEL CATFISH ZN-65 < 16.500 11-NOV-05 CHANNEL CATFISH CS-134 < 16.900 11-NOV-05 CHANNEL CATFISH CS-137 < 18.100 11-NOV-05 CHANNEL CATFISH H-3 < 150.000 11-NOV-05 COMMON CARP K-40 2804.000+/- 565.000 11-NOV-05 COMMON CARP MN-54 < 17.800 11-NOV-05 COMMON CARP CO-58 < 28.300 11-NOV-05 COMMON CARP FE-59 < 28.600 11-NOV-05 COMMON CARP CO-60 < 24.400 11-NOV-05 COMMON CARP ZN-65 < 31.000 11-NOV-05 COMMON CARP CS-134 < 15.900 11-NOV-05 COMMON CARP CS-137 < 15.500 11-NOV-05 COMMON CARP H-3 < 142.000 11-NOV-05 SMALLMOUTH BUFFALO K-40 3261.300+/- 512.700 11-NOV-05 SMALLMOUTH BUFFALO MN-54 < 11.900 11-NOV-05 SMALLMOUTH BUFFALO CO-58 < 12.900 11-NOV-05 SMALLMOUTH BUFFALO FE-59 < 39.400 11-NOV-05 SMALLMOUTH BUFFALO CO-60 < 8.000 11-NOV-05 SMALLMOUTH BUFFALO ZN-65 < 23.400 11-NOV-05 SMALLMOUTH BUFFALO CS-134 < 16.000 11-NOV-05 SMALLMOUTH BUFFALO CS-137 < 18.900 11-NOV-05 SMALLMOUTH BUFFALO H-3 < 149.000 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 58

Exposure Pathway - Ingestion Fish Location WCL Gamma Spectrum & H-3

, Collection Sample Nuclide Concentration Duplicate Date Description (pC!IKg Wet) Analysis 27-MAY-05 CHANNEL CATFISH K-40 4328.600+/- 699.500 27-MAY-05 CHANNEL CATFISH MN-54 < 12.200 27-MAY-05 CHANNEL CATFISH CO-58 < 25.300 27-MAY-05 CHANNEL CATFISH FE-59 < 40.200 27-MAY-05 CHANNEL CATFISH CO-60 < 20.500 27-MAY-05 CHANNEL CATFISH ZN-65 < 30.700 27-MAY-05 CHANNEL CATFISH CS-134 < 24.600 27-MAY-05 CHANNEL CATFISH CS-137 < 23.300 27-MAY-05 CHANNEL CATFISH H-3 9338.000+/- 257.000 27-MAY-05 COMMON CARP K-40 3274.600+/- 406.800 27-MAY-05 COMMON CARP MN-54 < 14.200 27-MAY-05 COMMON CARP CO-58 < 9.700 27-MAY-05 COMMON CARP FE-59 < 21.700 27-MAY-05 COMMON CARP CO-60 < 13.700 27-MAY-05 COMMON CARP ZN-65 < 21.900 27-MAY-05 COMMON CARP CS-134 < 15.400 27-MAY-05 COMMON CARP CS-137 < 13.700 27-MAY-05 COMMON CARP H-3 9479.000+/- 235.000 27-MAY-05 FRESHWATER DRUM K-40 3290.900+/- 541.900 27-MAY-05 FRESHWATER DRUM MN-54 < 22.500 27-MAY-05 FRESHWATER DRUM CO-58 < 21.100 27-MAY-05 FRESHWATER DRUM FE-59 < 39.600 27-MAY-05 FRESHWATER DRUM CO-60 < 17.000 27-MAY-05 FRESHWATER DRUM ZN-65 < 32.900 27-MAY-05 FRESHWATER DRUM CS-134 < 24.900 27-MAY-0S FRESHWATER DRUM CS-137 < 12.600 27-MAY-05 FRESHWATER DRUM H-3 7710.000+/- 199.000 27-MAY-05 SMALLMOUTH BASS K-40 3609.200+/- 564.600 27-MAY-05 SMALLMOUTH BASS MN-54 < 19.500 27-MAY-05 SMALLMOUTH BASS CO-58 < 19.200 27-MAY-05 SMALLMOUTH BASS FE-59 < 30.000 27-MAY-05 SMALLMOUTH BASS CO-60 < 17.000 27-MAY-05 SMALLMOUTH BASS ZN-65 < 52.800 27-MAY-05 SMALLMOUTH BASS CS-134 < 16.400 27-MAY-05 SMALLMOUTH BASS CS-137 < 20.900 27-MAY-05 SMALLMOUTH BASS H-3 8695.000+/- 235.000 27-MAY-05 WHITE BASS K-40 3517.800+/- 490.200 27-MAY-05 WHITE BASS MN-54 < 19.700 27-MAY-05 WHITE BASS CO-58 < 16.900 27-MAY-05 WHITE BASS FE-59 < 20.700 27-MAY-05 WHITE BASS CO-60 < 15.500 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 59

Exposure Pathway - Ingestion Fish Location WCL 4I Gamma Spectrum & H-3

'Collection Sample Nuclide Concentration Duplicate t Date Description (pCllKg Wet) Analysis 27-MAY-05 WHITE BASS ZN-65 < 29.800 27-MAY-05 WHITE BASS CS-134 < 16.900 27-MAY-05 WHITE BASS CS-137 < 13.200 27-MAY-05 WHITE BASS H-3 7867.000+/- 206.000 11-OCT-05 CHANNEL CATFISH K-40 3138.400+/- 400.200 11-OCT-05 CHANNEL CATFISH MN-54 < 19.400 11-OCT-05 CHANNEL CATFISH CO-58 < 11.000 11-OCT-05 CHANNEL CATFISH FE-59 < 47.900 11-OCT-05 CHANNEL CATFISH CO-60 < 12.300 11-OCT-05 CHANNEL CATFISH ZN-65 < 19.800 11-OCT-05 CHANNEL CATFISH CS-134 < 14.500 11-OCT-05 CHANNEL CATFISH CS-137 < 13.700 11-OCT-05 CHANNEL CATFISH H-3 6741.000+/- 199.000 11-OCT-05 COMMON CARP K-40 3180.900+/- 575.100 11-OCT-05 COMMON CARP MN-54 < 13.900 11-OCT-05 COMMON CARP CO-58 < 11.700 11-OCT-05 COMMON CARP FE-59 < 39.100 11-OCT-05 COMMON CARP CO-60 < 24.500 11-OCT-05 COMMON CARP ZN-65 < 27.300 11-OCT-05 COMMON CARP CS-134 < 17.600 11-OCT-05 COMMON CARP CS-137 < 9.900 11-OCT-05 COMMON CARP H-3 6542.000+/- 212.000 11-OCT-05 SMALLMOUTH BUFFALO K-40 2687.300+/- 401.300 11-OCT-05 SMALLMOUTH BUFFALO MN-54 < 17.600 11-OCT-05 SMALLMOUTH BUFFALO CO-58 < 25.300 11-OCT-05 SMALLMOUTH BUFFALO FE-59 < 63.700 11-OCT-05 SMALLMOUTH BUFFALO CO-60 < 14.500 11-OCT-05 SMALLMOUTH BUFFALO ZN-65 < 21.000 11-OCT-05 SMALLMOUTH BUFFALO CS-134 < 14.000 11-OCT-05 SMALLMOUTH BUFFALO CS-137 < 19.300 11-OCT-05 SMALLMOUTH BUFFALO H-3 6281.000+/- 204.000 11-OCT-05 WALLEYE K-40 3114.200+/- 483.400 11-OCT-05 WALLEYE MN-54 < 17.500 11-OCT-05 WALLEYE CO-58 < 19.200 11-OCT-05 WALLEYE FE-59 < 60.500 11-OCT-05 WALLEYE CO-60 < 21.000 11-OCT-05 WALLEYE ZN-65 < 47.000 11-OCT-05 WALLEYE CS-134 < 15.800 11-OCT-05 WALLEYE CS-137 < 22.200 11-OCT-05 WALLEYE H-3 7254.000+/- 226.000 11-OCT-05 WHITE BASS K-40 2928.900+/- 410.600 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 60

Exposure Pathway - Ingestion Fish Location WCL r I

,. Gamma Spectrum & H-3 Collection Sample Nuclide Concentration Duplicate I Date Description (pCi/Kg Wet) Analysis 11-OCT-05 WHITE BASS MN-54 < 21.100 11-OCT-05 WHITE BASS CO-58 < 16.700 11-OCT-05 WHITE BASS FE-59 < 74.200 11-OCT-05 WHITE BASS CO-60 < 12.100 11-OCT-05 WHITE BASS ZN-65 < 39.800 11-OCT-05 WHITE BASS CS-134 < 16.500 11-OCT-05 WHITE BASS CS-137 < 14.400 11-OCT-05 WHITE BASS H-3 7090.000+/- 214.000 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 61

Exposure Pathway - Ingestion Food/Garden Location D-1 Gamma'Spectrum:

Collection Sample Nuclide Concentration Duplicate i Date Description (pCUKg Wet) Analysis 11-MAY-05 RHUBARB BE-7 < 197.200 11-MAY-05 RHUBARB K-40 4999.400 +/- 482.500 11-MAY-05 RHUBARB MN-54 < 13.100 11-MAY-05 RHUBARB CO-58 < 19.700 11-MAY-05 RHUBARB FE-59 < 24.100 11-MAY-05 RHUBARB CO-60 < 19.700 11-MAY-05 RHUBARB ZN-65 < 37.700 11-MAY-05 RHUBARB ZR-NB-95 < 24.200 11-MAY-05 RHUBARB I-131 < 33.900 11-MAY-05 RHUBARB CS-134 < 11.000 11-MAY-05 RHUBARB CS-137 < 19.300 08-JUN-05 RHUBARB BE-7 239.800 +/- 95.200 08-JUN-05 RHUBARB K-40 3237.400+/- 343.800 08-JUN-05 RHUBARB MN-54 < 9.000 08-JUN-05 RHUBARB CO-58 < 7.300 08-JUN-05 RHUBARB FE-59 < 18.000 08-JUN-05 RHUBARB CO-60 < 11.300 08-JUN-05 RHUBARB ZN-65 < 23.500 08-JUN-05 RHUBARB ZR-NB-95 < 12.500 08-JUN-05 RHUBARB I-131 < 20.100 08-JUN-05 RHUBARB CS-134 < 12.000 08-JUN-05 RHUBARB CS-137 < 12.400 13-JUL-05 RHUBARB BE-7 177.300 +t- 80.900 13-JUL-05 RHUBARB K-40 2563.200 +/- 230.400 13-JUL-05 RHUBARB MN-54 < 7.000 13-JUL-os RHUBARB CO-58 < 5.000 13-JUL-05 RHUBARB FE-59 < 9.300 13-JUL-05 RHUBARB CO-60 < 6.700 13-JUL-05 RHUBARB ZN-65 < 7.300 13-JUL-05 RHUBARB ZR-NB-95 < 3.400 13-JUL-05 RHUBARB I-131 < 7.100 13-JUL-05 RHUBARB CS-134 < 9.100 13-JUL-05 RHUBARB CS-137 < 5.900 10-AUG-05 RHUBARB BE-7 < 130.300 10-AUG-05 RHUBARB K-40 2929.900 +/- 392.700 10-AUG-05 RHUBARB MN-54 < 16.100 10-AUG-05 RHUBARB CO-58 < 7.000 10-AUG-05 RHUBARB FE-59 < 28.900 10-AUG-05 RHUBARB CO-60 < 12.800 10-AUG-05 RHUBARB ZN-65 < 25.400 10-AUG-05 RHUBARB ZR-NB-95 < 17.600 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 62

Exposure Pathway - Ingestion Food/Garden Location D-1 Gamma Spectrum

, Collection Sample . . Nuclide Concentration Duplicate Date Description -.. . I (pCVKg Wet) Analysis I u-10-AUG-05 RHUBARB I-131 c 29.900 10-AUG-05 RHUBARB CS-134 < 11.800 10-AUG-05 RHUBARB CS-137 < 11.900 29-SEP-05 RHUBARB BE-7 243.600+/- 99.400 29-SEP-05 RHUBARB K-40 3585.900 +1- 278.100 29-SEP-05 RHUBARB MN-54 < 9.400 29-SEP-05 RHUBARB CO-58 < 5.900 29-SEP-05 RHUBARB FE-59 < 13.500 29-SEP-05 RHUBARB CO-60 < 8.400 29-SEP-05 RHUBARB ZN-65 < 16.400 29-SEP-05 RHUBARB ZR-NB-95 < 5.100 29-SEP-05 RHUBARB I-131 < 14.900 29-SEP-05 RHUBARB CS-134 < 10.200 29-SEP-05 RHUBARB CS-137 < 10.600 28-OCT-05 RHUBARB BE-7 509.300 +/- 244.100 28-OCT-05 RHUBARB K-40 4625.600 +/- 627.400 28-OCT-05 RHUBARB MN-54 < 19.200 28-OCT-05 RHUBARB CO-58 < 19.800 28-OCT-05 RHUBARB FE-59 < 24.000 28-OCT-05 RHUBARB CO-60 < 12.900 28-OCT-05 RHUBARB ZN-65 < 25.200 28-OCT-05 RHUBARB ZR-NB-95 < 21.300 28-OCT-05 RHUBARB I-131 < 23.100 28-OCT-05 RHUBARB CS-134 < 13.100 28-OCT-05 RHUBARB CS-137 < 21.300 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 63

Exposure Pathway - Ingestion Food/Garden Location D-2 Gamma Spectrum Collection Sample Nuclide Concentration Duplicate Date Description (pCI/Kg Wet) Analysis 08-JUN-05 RHUBARB BE-7 1025.400 +/- 183.300 08-JUN-05 RHUBARB K-40 4351.800 +/- 436.100 08-JUN-05 RHUBARB MN-54 < 11.300 08-JUN-05 RHUBARB CO-58 < 10.900 08-JUN-05 RHUBARB FE-59 < 35.000 08-JUN-05 RHUBARB CO-60 < 10.600 08-JUN-05 RHUBARB ZN-65 < 13.200 08-JUN-05 RHUBARB ZR-NB-95 < 5.200 08-JUN-05 RHUBARB I-131 < 24.000 08-JUN-05 RHUBARB CS-134 < 14.000 08-JUN-05 RHUBARB CS-137 c 8.600 13-JUL-05 RHUBARB BE-7 467.600+/- 117.600 13-JUL-05 RHUBARB K-40 2704.600 +/- 271.800 13-JUL-05 RHUBARB MN-54 < 6.200 13-JUL-05 RHUBARB CO-58 < 5.200 13-JUL-05 RHUBARB FE-59 < 11.400 13-JUL-05 RHUBARB CO-60 < 9.000 13-JUL-05 RHUBARB ZN-65 < 8.000 13-JUL-05 RHUBARB ZR-NB-95 < 6.100 13-JUL-05 RHUBARB I-131 < 10.900 13-JUL-05 RHUBARB CS-134 < 7.900 13-JUL-05 RHUBARB CS-137 < 6.900 10-AUG-05 RHUBARB BE-7 < 175.900 10-AUG-05 RHUBARB K-40 3609.800 +/- 460.400 10-AUG-05 RHUBARB MN-54 < 11.400 10-AUG-05 RHUBARB CO-s8 < 11.900 10-AUG-05 RHUBARB FE-59 < 19.700 10-AUG-05 RHUBARB CO-60 < 15.100 10-AUG-05 RHUBARB ZN-65 < 10.200 10-AUG-05 RHUBARB ZR-NB-95 < 12.500 10-AUG-05 RHUBARB I-131 < 38.500 10-AUG-05 RHUBARB CS-134 < 22.500 10-AUG-05 RHUBARB CS-137 < 7.800 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 64

Exposure Pathway - Ingestion Food/Garden Location G-1

,Gamma Spectrum

. Collection Sample Nuclide Concentration Duplicate Date Description (pCVKg Wet) Analysis 11-MAY-05 RHUBARB BE-7 416.600 +/- 210.000 11-MAY-05 RHUBARB K-40 5136.700 +/- 448.500 11-MAY-05 RHUBARB MN-54 < 14.300 11-MAY-OS RHUBARB CO-S8 < 9.800 11-MAY-05 RHUBARB FE-59 < 36.000 11-MAY-05 RHUBARB CO-60 < 13.000 11-MAY-05 RHUBARB ZN-65 < 35.700 11-MAY-05 RHUBARB ZR-NB-95 < 15.900 11-MAY-05 RHUBARB I-131 < 15.200 11-MAY-05 RHUBARB CS-134 < 14.900 11-MAY-05 RHUBARB CS-137 < 13.600 08-JUN-OS RHUBARB BE-7 203.500 +/- 103.400 08-JUN-05 RHUBARB K-40 3353.700 +/- 341.300 08-JUN-05 RHUBARB MN-54 < 11.800 08-JUN-OS RHUBARB CO-58 < 9.000 08-JUN-05 RHUBARB FE-59 < 15.800 08-JUN-05 RHUBARB CO-60 < 9.000 08-JUN-05 RHUBARB ZN-65 < 23.100 08-JUN-05 RHUBARB ZR-NB-95 < S5.100 08-JUN-05 RHUBARB I-131 < 18.800 08-JUN-05 RHUBARB CS-134 < 9.400 08-JUN-05 RHUBARB CS-137 < 6.900 13-JUL-05 RHUBARB BE-7 713.900 +/- 162.400 13-JUL-05 RHUBARB K-40 6745.500 +/- 476.500 13-JUL-05 RHUBARB MN-54 < 9.800 13-JUL-05 RHUBARB CO-S8 < 12.700 13-JUL-05 RHUBARB FE-59 < 16.100 13-JUL-OS RHUBARB CO-60 < 10.300 13-JUL-05 RHUBARB ZN-65 < 14.800 13-JUL-0S RHUBARB ZR-NB-95 < 7.800 13-JUL-05 RHUBARB I-131 < 9.100 13-JUL-05 RHUBARB CS-134 < 14.700 13-JUL-05 RHUBARB CS-137 < 10.400 29-SEP-05 RHUBARB BE-7 256.300 +/- 136.700 29-SEP-05 RHUBARB K-40 5792.500 +1- 322.300 29-SEP-05 RHUBARB MN-54 < 9.800 29-SEP-05 RHUBARB CO-58 < 5.300 29-SEP-05 RHUBARB FE-S9 < 19.900 29-SEP-05 RHUBARB CO-60 < 7.900 29-SEP-05 RHUBARB ZN-65 < 15.200 29-SEP-05 RHUBARB ZR-NB-95 < 6.900 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 65

Exposure Pathway - Ingestion Food/Garden Location G-1 Gamma Spectrum Collection Sample Nuclide Concentration Duplicate Date Description (pCiIKg Wet) Analysis 29-SEP-05 RHUBARB I-131 < 13.600 29-SEP-05 RHUBARB CS-134 < 6.500 29-SEP-05 RHUBARB CS-137 < 10.300 28-OCT-05 RHUBARB BE-7 < 315.400 28-OCT-05 RHUBARB K-40 5883.100 +/- 850.500 28-OCT-05 RHUBARB MN-54 < 30.700 28-OCT-05 RHUBARB CO-58 < 16.600 28-OCT-05 RHUBARB FE-59 < 41.800 28-OCT-05 RHUBARB CO-60 < 16.700 28-OCT-05 RHUBARB ZN-65 < 68.300 28-OCT-05 RHUBARB ZR-NB-95 < 25.000 28-OCT-05 RHUBARB I-131 < 22.000 28-OCT-05 RHUBARB CS-134 < 19.200 28-OCT-05 RHUBARB CS-137 < 21.600 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 66

Exposure Pathway - Ingestion FoodlGarden Location MUDS f

Gamma Spectrum Collection Sample Nuclide Concentration Duplicate

, Date: Description (pCUKg Wet) Analysis 07-JUN-05 PLUMS BE-7 < 111.500 07-JUN-05 PLUMS K-40 2768.700 +/- 303.000 07-JUN-05 PLUMS MN-54 < 6.600 07-JUN-05 PLUMS CO-58 < 6.300 07-JUN-05 PLUMS FE-59 < 13.900 07-JUN-05 PLUMS CO-60 < 9.300 07-JUN-05 PLUMS ZN-65 < 15.000 07-JUN-05 PLUMS ZR-NB-95 < 7.600 07-JUN-05 PLUMS I-131 < 13.400 07-JUN-05 PLUMS CS-134 < 5.400 07-JUN-05 PLUMS CS-137 < 7.500 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 67

Exposure Pathway - Ingestion Food/Garden Location N-1 Gamma Spectrum 1 Collection Sample 'Nuclide Concentration Duplicate Date Description I(pCi/Kg Wet) Analysis 08-JUN-05 RHUBARB BE-7 316.900 +/- 170.800 08-JUN-05 RHUBARB K-40 5325.900 +/- 628.500 08-JUN-05 RHUBARB MN-54 < 15.600 08-JUN-05 RHUBARB CO-58 < 10.700 08-JUN-05 RHUBARB FE-59 < 32.000 08-JUN-05 RHUBARB CO-60 < 13.700 08-JUN-05 RHUBARB ZN-65 < 30.400 08-JUN-05 RHUBARB ZR-NB-95 < 11.300 08-JUN-05 RHUBARB I-131 < 21.800 08-JUN-05 RHUBARB CS-134 < 21.000 08-JUN-05 RHUBARB CS-137 < 18.500 13-JUL-05 RHUBARB BE-7 < 85.700 13-JUL-05 RHUBARB K-40 3744.500 +/- 292.400 13-JUL-05 RHUBARB MN-54 < 5.500 13-JUL-05 RHUBARB CO-58 < 9.700 13-JUL-05 RHUBARB FE-59 < 14.400 13-JUL-05 RHUBARB CO-60 < 6.400 13-JUL-05 RHUBARB ZN-65 < 9.400 13-JUL-05 RHUBARB ZR-NB-95 < 3.700 13-JUL-05 RHUBARB I-131 < 8.300 13-JUL-05 RHUBARB CS-134 < 8.000 13-JUL-05 RHUBARB CS-137 < 8.900 10-AUG-05 RHUBARB BE-7 < 144.000 10-AUG-05 RHUBARB K-40 I4672.300 +/- 648.800 10-AUG-05 RHUBARB MN- 54 < 16.600 10-AUG-05 RHUBARB CO-58 < 8 .100 10-AUG-05 RHUBARB FE-59 < 39.400 10-AUG-05 RHUBARB CO-60 < 11.000 10-AUG-05 RHUBARB ZN-65 < 24.200 10-AUG-05 RHUBARB ZR-NB-95 < 16.300 10-AUG-05 RHUBARB I-131 < 17.400 10-AUG-05 RHUBARB CS-134 < 21.900 10-AUG-05 RHUBARB CS-137 < 20.100 29-SEP-05 RHUBARB BE-7 171.600 +/- 102.600 29-SEP-05 RHUBARB K-40 J395.400 +/- 279.100 29-SEP-05 RHUBARB MN-54 c 10.400 29-SEP-05 RHUBARB CO-58 < 4.800 29-SEP-05 RHUBARB FE-59 < 12.900 29-SEP-05 RHUBARB CO-60 < 11.600 29-SEP-05 RHUBARB ZN-65 < 11.900 29-SEP-05 RHUBARB ZR-NB-95 < 7.200 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 68

Exposure Pathway - Ingestion Food/Garden Location N-1 l

. : Gamma Spectrum

Collection, Sample Nuclide Concentration Duplicate If Date Description  : . (pCUKg Wet) Analysis 29-SEP-05 RHUBARB I-131 < 13.000 29-SEP-05 RHUBARB CS-134 < 11.300 29-SEP-05 RHUBARB CS-137 < 8.200 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 69

Exposure Pathway - Ingestion FoodlGarden Location Q-6 Gamma Spectrum I Collection Sample Nuclide Concentration Duplicate fi  : Date Description I Et (pCilKg Wet) Analysis

. I 08-JUN-05 RHUBARB BE-7 503.800 +/- 200.000 08-JUN-05 RHUBARB K-40 5243.100 +/- 501.800 08-JUN-05 RHUBARB MN-54 10.400 08-JUN-05 RHUBARB CO-58 < 12.500 08-JUN-05 RHUBARB FE-59 < 22.500 08-JUN-05 RHUBARB CO-60 < 12.600 08-JUN-05 RHUBARB ZN-65 < 18.600 08-JUN-Os RHUBARB ZR-NB-95 < 9.800 08-JUN-05 RHUBARB I-131 < 22.900 08-JUN-05 RHUBARB CS-134 < 12.300 08-JUN-05 RHUBARB CS-137 < 11.200 13-JUL-05 RHUBARB BE-7 270.100 +/- 110.500 13-JUL-05 RHUBARB K-40 4685.500 +/- 392.700 13-JUL-05 RHUBARB MN-54 < 8.200 13-JUL-05 RHUBARB CO-58 < 11.000 13-JUL-05 RHUBARB FE-59 < 22.600 13-JUL-Os RHUBARB CO-60 < 11.500 13-JUL-os RHUBARB ZN-65 < 7.200 13-JUL-Os RHUBARB ZR-NB-95 < 4.500 13-JUL-05 RHUBARB I-131 < 10.500 13-JUL-05 RHUBARB CS-134 < 6.700 13-JUL-05 RHUBARB CS-137 < 5.900 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 70

Exposure Pathway - Ingestion Feed and Forage Location NR-DI

[ Date Collection Sample

Description Nuclide Concentration (pCiIKg Wet Duplica te Analysis 05-OCT-05 IRRIGATED CORN BE- 7 < 139.700 05-OCT-05 IRRIGATED CORN K-40 3963.800 +1- 563.700 05-OCT-05 IRRIGATED CORN MN- 54 < 15.700 05-OCT-05 IRRIGATED CORN CO- 58 < 18.200 05-OCT-05 IRRIGATED CORN FE- 59 < 19.800 05-OCT-05 IRRIGATED CORN CO- 60 < 13.700 05-OCT-05 IRRIGATED CORN ZN-65 < 36.100 05-OCT-05 IRRIGATED CORN ZR-NB- 95 < 24.500 05-OCT-05 IRRIGATED CORN I-131 < 44.500 05-OCT-05 IRRIGATED CORN CS-134 < 11.600 05-OCT-05 IRRIGATED CORN CS- 137 < 15.300 2005 Annual Radiological Environmental operating Report Wolf Creek Generating Station Page C -71

Exposure Pathway - Ingestion Feed and Forage Location NR-D2

~~ama petum

[ Date

'Collection Sample Description Nuclide Concentration (pCiIKg Wet)

Duplicate, Analysis 05-OCT-05 IRRIGATED CORN BE- 7

• 129.200 05-OCT-05 IRRIGATED SOYBEANS BE- 7

• 216. 900 Duplicate 05-OCT-05 IRRIGATED SOYBEANS BE-7

• 150.100 05-OCT-05 IRRIGATED CORN K- 40 3128. 000 +- 367.900 05-OCT-05 IRRIGATED SOYBEANS K-40 15682.000 +- 919.600 Duplicate 05-OCT-05 IRRIGATED SOYBEANS K- 40 15396 .000 +- 725. 700 05-OCT-05 IRRIGATED CORN MN- 54 < 12.300 05-OCT-05 IRRIGATED SOYBEANS MN- 54 < 15.200 Duplicate 05-OCT-O5 IRRIGATED SOYBEANS MN-54 < 15.200 05-OCT-05 IRRIGATED CORN CO-S58 < 12.700 0 5-OCT-05 IRRIGATED SOYBEANS CO- 58 < 11.400 05-OCT-05 IRRIGATED SOYBEANS CO- 58 < 23 .800 Duplicate 05-OCT-O5 IRRIGATED CORN FE- 59 < 35.600 05-OCT-O5 IRRIGATED SOYBEANS FE- 59 < 38.300 05-OCT-OS IRRIGATED SOYBEANS FE- 59 < 71.200 Duplicate 05-OCT-05 IRRIGATED CORN CO- 60 < 10.400 05-OCT-05 IRRIGATED SOYBEANS CO- 60 < 10.300 05-OCr-as IRRIGATED SOYBEANS CO- 60 < 30.800 Duplicate 05-OCT-OS IRRIGATED CORN ZN- 65 < 21.000 05-OCT-05 IRRIGATED SOYBEANS ZN-65 < 44.300 Duplicate 05-OCT-05 IRRIGATED SOYBEANS ZN-65 < 44.200 05 -OCT-05 IRRIGATED CORN ZR-NB- 95 < 15.500 0 5-OCT-05 IRRIGATED SOYBEANS ZR-NB- 95 < 29.600 Duplicate 05-OCT-05 IRRIGATED SOYBEANS ZR-NB- 95 < 21.600 05-OCT-OS IRRIGATED CORN I-131 < 41.400 05-OCT-05 IRRIGATED SOYBEANS I-131 < 94.100 Duplicate 0 5-OCT-05 IRRIGATED SOYBEANS I-131 < 53.000 0 5-OCT-05 IRRIGATED CORN CS -134 < 8.100 0 5-OCT-05 IRRIGATED SOYBEANS CS- 134 < 13.400 05-OCT-05 IRRIGATED SOYBEANS CS -134 < 11.200 Duplicate 05S-OCT-O5 IRRIGATED CORN CS -137 < 7.500 05-OCT-05 IRRIGATED SOYBEANS CS -137 < 20.300 05-OCT-05 IRRIGATED SOYB3EANS CS-137 < 18.700 Duplicate 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -72

Exposure Pathway - Ingestion Feed and Forage Location NR-Ul Gamma Spectrum Collection Sample Nuclide Concentration Duplicate Date: Description - (pCi/Kg Wet) Analysis 29-SEP-05 NON-IRRIGATED CORN BE-7 < 93.100 29-SEP-05 NON-IRRIGATED CORN K-40 2308.800 +/- 382.900 29-SEP-05 NON-IRRIGATED CORN MN-54 < 10.100 29-SEP-05 NON-IRRIGATED CORN CO-58 < 12.700 29-SEP-05 NON-IRRIGATED CORN FE-59 < 18.100 29-SEP-05 NON-IRRIGATED CORN CO-60 < 9.700 29-SEP-05 NON-IRRIGATED CORN ZN-65 < 22.200 29-SEP-05 NON-IRRIGATED CORN ZR-NB-95 < 13.700 29-SEP-05 NON-IRRIGATED CORN I-131 < 23.100 29-SEP-05 NON-IRRIGATED CORN CS-134 < 10.800 29-SEP-05 NON-IRRIGATED CORN CS-137 < 7.800 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 73

Exposure Pathway - Aquatic Bottom Sediment Location DC Gamma Spectrum Collection Nuclide Concentration Duplicate Date (pCiIKg Dry) Analysis 27-MAY-05 K-40 1:3455.000 +/- 1047.000 27-MAY-05 MN-54

• 36.000 27-MAY-05 CO-58

• 43.200 27-MAY-05 FE-59

• 78.600 27-MAY-05 CO-60 159.700 +/- 47.000 27-MAY-05 ZN-65

• 87.800 27-MAY-05 CS-134

• 64.300 27-MAY-0S CS-137 208.900 +/- 69.500 27-OCT-05 K-40 1' 1377.000 +/- 1012.000 27-OCT-05 MN-54 < 46.700 27-OCT-05 CO-58 < 42.700 27-OCT-05 FE-59 < 124.000 27-OCT-05 CO-60 182.800 +/- 44.100 27-OCT-05 ZN-65

• 108.000 27-OCT-05 CS-134

• 67.100 27-OCT-05 CS-137 234.400 +/- 40.400 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 74

Exposure Pathway - Aquatic Bottom Sediment Location EEA Gamma Spectrum Collection Nuclide Concentration Duplicate

Date (pC!/Kg Dry) Analysis 24-JUN-05 K-40 12856.000 +/- 1048.000 1 24-JUN-05 K-40 13230.000 +/- 1135.000 24-JUN-05 K-40 12671.000 +/- 1058.000 Duplicate 24-JUN-05 MN-54 38.900 1 24-JUN-05 MN-54 28.200 Duplicate 24-JUN-05 MN-54 33.800 24-JUN-05 CO-58 53.400 1 24-JUN-05 CO-58 63.700 Duplicate 24-JUN-05 CO-58 57.400 24-JUN-05 FE-59 171.400 1 24-JUN-05 FE-59 124.100 24-JUN-05 FE-59 105.200 Duplicate 24-JUN-05 CO-60 36.100 1 24-JUN-05 CO-60 32.000 24-JUN-05 CO-60 23.300 Duplicate 24-JUN-05 ZN-65 113 .000 1 24-JUN-05 ZN-65 108.600 Duplicate 24-JUN-05 ZN-65 101.500 24-JUN-05 CS-134 58.200 1 24-JUN-05 CS-134 55.300 Duplicate 24-JUN-05 CS-134 64.900 24-JUN-05 CS-137 83.700 +/- 50.000 1 24-JUN-05 CS-137 51.700 Duplicate 24-JUN-05 CS-137 77.300 +/- 31.200 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 75

Exposure Pathway - Aquatic Bottom Sediment Location JRR Gamma Spectrum Collection Nuclide Concentration Duplicate Date (pCiIKg Dry) Analysis 10-JUN-05 K-40 19289.000 +/- 1260.000 10-JUN-05 MN-54 < 42.300 10-JUN-05 CO-58 < 58.600 10-JUN-05 FE-59 < 77.900 10-JUN-05 CO-60 < 39.700 10-JUN-05 ZN-65 < 103.800 10-JUN-05 CS-134 < 62.800 10-JUN-05 CS-137 154.500 +/- 50.300 11-NOV-05 K-40 16987.000 +/- 1103.000 11-NOV-05 MN-54 < 41.500 11-NOV-05 CO-58 < 49.200 11-NOV-05 FE-59 < 115.900 11-NOV-05 CO-60 < 17.600 11-NOV-05 ZN-65 < 97.300 11-NOV-05 CS-134 < 54.200 11-NOV-05 CS-137 127.600 +/- 49.200 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 76

Exposure Pathway - Aquatic Bottom Sediment Location MUDS

Gamma Spectrum Collection Nuclide I I Concentration Duplicate Date (pCUIKg Dry): Analysis 14-JUN-05 K-40 9050.400 4./- 990.300 ReCount 14-JUN-05 K-40 1805.400 4 I/- 1065.000 14-JUN-05 MN- 54 c 51.900 ReCount 14-JUN-05 MN- 54 < 38.800 14-JUN-05 CO-58 < 57.400 ReCount 14-JUN-05 CO-58 < 49.100 14-JUN-05 FE-59 < 131.500 ReCount 14-JUN-05 FE-59 < 95.800 14-JUN-05 CO-60 < 31.900 ReCount 14-JUN-05 CO-60 < 24.300 14-JUN-05 ZN-65 < 119.900 ReCount 14-JUN-05 ZN-65 < 120.200 14-JUN-05 CS-134 < 62.800 ReCount 14-JUN-05 CS-134 < 59.900 14-JUN-05 CS-137 < 39.900 ReCount 14-JUN-05 CS-137 < 35.900 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 77

Exposure Pathway - Aquatic Vegetation Location EEA Gamma Spectrum Collection Sample Nuclide Concentration Duplicate Date Description (pCUK9 Wet) Sample 14-JUN-05 CREEPING WATER PRIMROSE BE-7 1302.300+/ /- 262.600 14-JUN-05 CREEPING WATER PRIMROSE K-40 2517.700 +//- 495.800 14-JUN-05 CREEPING WATER PRIMROSE MN-54 < 11.700 14-JUN-05 CREEPING WATER PRIMROSE CO-58 < 20.300 14-JUN-05 CREEPING WATER PRIMROSE FE-59 < 26.000 14-JUN-05 CREEPING WATER PRIMROSE CO-60 < 12.000 14-JUN-05 CREEPING WATER PRIMROSE ZN-65 < 17.500 14-JUN-05 CREEPING WATER PRIMROSE ZR-NB-95 < 17.900 14-JUN-05 CREEPING WATER PRIMROSE I-131 < 19.100 14-JUN-05 CREEPING WATER PRIMROSE CS-134 < 16.400 14-JUN-05 CREEPING WATER PRIMROSE CS-137 < 16.300 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 78

Exposure Pathway - Aquatic Vegetation Location MUDS Gamma Spectrum i, . :Collection Sample Nuclide Concentration Duplicate

.... Date Description (pCi/Kg Wet) Sample 14-JUN-05 PONDWEED BE-7 516.300+!- 193.300 14-JUN-05 PONDWEED K-40 2154.500+/- 383.500 14-JUN-05 PONDWEED MN-54 < 15.900 14-JUN-05 PONDWEED CO-58 < 13.500 14-JUN-05 PONDWEED FE-59 < 20.200 14-JUN-05 PONDWEED CO-60 < 16.200 14-JUN-05 PONDWEED ZN-65 c 15.600 14-JUN-05 PONDWEED ZR-NB-95 < 8.700 14-JUN-05 PONDWEED I-131 < 24.500 14-JUN-05 PONDWEED CS-134 < 13.300 14-JUN-05 PONDWEED CS-137 < 13.000 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 79

Exposure Pathway - Terrestrial Vegetation Location EEA

' I' ' I. ' :'-I M. 'C1 I I- I. I II I _I I ' I I :

Gamma Spectrum Collection Sample Nuclide , . Concentration Duplicate i Date Description I I ~

I(pCi/Kg Wet) Analysis

- i  ; (. aIl . ,~ L.I.. . i, .1 1-I 16-MAY-05 PASTURAGE BE-7 868.300+/- 227.200 16-MAY-05 PASTURAGE K-40 7677.200+/- 470.500 16-MAY-05 PASTURAGE MN-54 < 18.400 16-MAY-O5 PASTURAGE CO-58 < 14.900 16-MAY-OS PASTURAGE FE-59 < 43.500 16-MAY-05 PASTURAGE CO-60 < 15.700 16-MAY-OS PASTURAGE ZN-65 < 30.100 16-MAY-05 PASTURAGE ZR-NB-95 < 26.400 16-MAY-05 PASTURAGE I-131 < 107.400 16-MAY-05 PASTURAGE CS-134 < 16.200 16-MAY-05 PASTURAGE CS-137 < 16.200 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 80

Exposure Pathway - Terrestrial Soil Location EEA Gamma Spectrum Collection Nuclide Concentration Duplicate Date (pCiIKg Dry) Analysis 16-MAY-05 K-40 11095.000+/- 962.800 16-MAY-05 K-40 12505.000+/- 1024.000 ReCount 16-MAY-05 MN-54 35.100 16-MAY-05 MN-54 43.300 ReCount 16-MAY-05 CO-58 36.200 16-MAY-05 CO-58 95.200 ReCount 16-MAY-05 FE-59 103.100 16-MAY-05 FE-59 299.100 ReCount 16-MAY-05 CO-60 18.700 16-MAY-05 CO-60 24.900 ReCount 16-MAY-05 ZN-65 69.200 16-MAY-05 ZN-65 102.400 ReCount 16-MAY-05 CS-134 58.700 16-MAY-05 CS-134 56.600 ReCount 16-MAY-05 CS-137 557.500+/- 63.400 16-MAY-05 CS-137 515.300+/- 65.700 ReCount 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 81

Exposure Pathway - Terrestrial Soil Location MUDS Gamma Spectrum Collection Nuclide Concentration Duplicate Date- :pCilKg Dry) Analysis 07-JUN-05 K-40 9282.400+/- 926.000 07-JUN-05 MN- 54 < 29.500 07-JUN-05 CO-58 < 39.000 07-JUN-05 FE-59 < 183.000 07-JUN-05 CO-60 < 25.200 07-JUN-05 ZN-65 < 105.200 07-JUN-05 CS-134 < 37.600 07-JUN-05 CS-137 < 34.800 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 82

WOLF CREEK GENERATING STATION 2005 LAND USE CENSUS REPORT I

I Prepared by:

09-27-05 Teresa L. Rice Date Peer Review: 09-27-05 Ralph L. Logsdon Date Approved by: 09/28/05 Robert A. Hammond Date Approved by:

09/28/05 Kevin J. Moles Date 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - I

EXECUTIVE

SUMMARY

The annual Land Use Census of rural residents within five miles of the Wolf Creek Generating Station (WCGS) has been completed for 2005 in accordance with AP 07B-004, [Offsite Dose Calculation Manual (Radiological Environmental Monitoring Program)]. Changes are not required for the Radiological Environmental Monitoring Program (REMP) broadleaf vegetation sample locations for 2006. The two broadleaf vegetation locations with the highest calculated annual average D/Q rankings remain Gl.56-QURD1384 and Q2.35-MILA1619. AP 07B-004 specifies that an "alternate location may be used to provide continued monitoring". The third-ranked garden is location N2.38-RRDR9 and it will continue to be the alternate sample location.

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 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 five 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.

2005 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.

As identified in Table 2, sector "F" was the only sector that experienced a change in the nearest residence. The residence located at F1.57-14RD1711 is currently vacant, thus, the nearest residence in sector "F" is now Fl.76-14RD1730.

Four location changes were noted for the nearest garden producing broadleaf vegetation.

These changes are identified in Table 3.

There were no changes regarding milk locations. Again, no locations were identified that produced milk for human consumption.

2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 3

TABLE 1 2005 Land Use Census Data Location of Nearest:

Sector Residence Milkina Animals Broadleaf Garden A A2.60-17TE1 520 None None B B3.53-QURD1755 None B3.53-QURD1755 C C1.92-16RD1655 None C1.92-16RD1655 D D2.03-QULA1571 None D3.00-16RD1829 E El.77-QULA1485 None E4.40-TRRD1 551 F F1.76-14RD1730 None F2.44-RERD1 391 G G1.56-QURD1384 None G1.56-QURD1384 H H3.09-12RD1711 None H3.30-QURD1 175 J J3.70-11 RD1 540 None J3.90-11 RD1531 K K2.70-12LA1 439 None K4.10-NARD1 120 L L2.10-NARD1339 None L2.39-NARD1309 M M2.47-14RD1322 None M3.10-13LA1290 N N1.71-NARD1441 None N2.38-RRDR9 P P2.76-HW751534 None P2.76-HW751534 Q Q2.35-MILA1619 None Q2.35-MILA1619 R R2.08-NALN1650 None None Identifiers are based upon the following protocol:

EXAMPLE: A1.4-16RD1525 "A" = Sector A "1.4" = 1.4 miles from the reactor "16RD1 525" = address 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 4

TABLE 2 SECTOR 2004 NEAREST 2005 NEAREST RESIDENCE RESIDENCE A A2.60-17TE1520 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 El.77-QULA1485 El.77-QULA1485 F Fl.57-14RD1711 Fl.76-14RD1730 G G1.56-QURD1384 GI.56-QURD1384 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 M2.47-14RD1322 M2.47-14RD1322 N NI.71-NARD1441 N1.71-NARD1441 P P2.76-HW751534 P2.76-HW751534 Q Q2.35-MILA1619 Q2.35-MILA1619 R R2.08-NALN1650 R2.08-NALN1650 NOTE: Entries underlined indicate changes from the 2004 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.

2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 5

TABLE 3 2005 Land Use Census Milk and Garden Data SECTOR 2004 2005 2004 CLOSEST 2005 CLOSEST MILKING MILKING GARDEN GARDEN ANIMALS ANIMALS PRODUCING PRODUCING BROADLEAF BROADLEAF VEGETATION VEGETATION A None None A4.91 -OXRD1940 None B None None None B3.53-QURD1755 C None None C3.69-17RD1795 C1.92-16RD1655 D None None D3.00-16RD1829 D3.00-16RD1829 E None None E4.40-TRRD1 551 E4.40-TRRD1 551 F None None F1.76-14RD1730 F2.44-RERD1391 G None None G1.56-QURD1384 G1.56-QURD1384 H None None H3.30-QURD1175 H3.30-QURD1175 J None None J3.90-11RD1531 J3.90-11RD1531 K None None K4.10-NARD1120 K4.10-NARD1120 L None None L2.39-NARD1309 L2.39-NARD1309 M None None M3.10-13LA1290 M3.10-13LA1290 N None None N2.38-RRDR9 N2.38-RRDR9 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 2004 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.

2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 6

TABLE 4 Information Used for D/Q Calculations FROM LAND USE FROM AN-04.045 DIST CALC NEAR NEAR FAR FAR SECTOR DIQ

• 20%

SECTOR (MI) (METERS) DIST D/ Q DIST D/Q CALC RANKING A 0 0 B 3.53 5683.3 5000 7.23E-10 6000 5.32E-10 5.92E-10 7 7.10E-10 C 1.92 3091.2 3000 7.26E-10 4000 4.36E-10 7.OOE-10 4 8.40E-10 D 3.00 4830 4000 3.20E-10 5000 2.18E-10 2.35E-10 13 2.82E-10 E 4.40 7084 7000 1.14E-10 8000 9.23E-11 1.12E-10 14 1.34E-10 F 2.44 3928.4 3000 6.41 E-10 4000 3.84E-10 4.02E-10 9 4.82E-10 G 1.56 2511.6 2000 2.41 E-09 3000 1.22E-09 1.80E-09 I 2.16E-09 H 3.30 5313 5000 5.84E-10 6000 4.29E-10 5.35E-10 8 6.42E-10 J 3.90 6279 6000 3.72E-10 7000 2.76E-10 3.45E-10 11 4.14E-10 K 4.10 6601 6000 3.91E-10 7000 2.90E-10 3.30E-10 12 3.96E-10 L 2.39 3847.9 3000 9.61 E-10 4000 5.77E-10 6.35E-10 5 7.62E-10 M 3.10 4991 4000 5.77E-10 5000 3.92E-10 3.94E-10 10 4.73E-10 N 2.38 3831.8 3000 1.09E-09 4000 6.54E-10 7.27E-10 3 8.72E-10 P 2.76 4443.6 4000 7.30E-10 5000 4.97E-10 6.27E-10 6 7.52E-10 Q 2.35 3783.5 3000 1.75E-09 4000 1.05E-09 1.20E-09 2 1.44E-09 R 0 0 Originated by: jw Date: 09-27-05 Verified by: 2L 1 Date: 09-27-05 2005 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 7