Text

2006 Annual Radiological Environmental Operating Report for the Period of January 1, 2006 Through December 31, 2006
	ML071150130
Person / Time
Site:	Wolf Creek
Issue date:	04/19/2007
From:	Moles K; Wolf Creek
To:	; Document Control Desk, NRC/NRR/ADRO
References
	RA 07-0045
	Download: ML071150130 (153)
	v • d • e

,WSLF CREEK

.NUCLEAR OPERATING CORPORATION Kevin J. Moles Manager Regulatory Affairs April 19, 2007 RA 07-0045 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Docket No. 50-482: 2006 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, 2006, through December 31, 2006.

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.

Sincerely, KJM/rlt

Enclosure:

2006 Annual Radiological Environmental Operating Report cc:

J. N. Donohew (NRC), w/e V. G. Gaddy (NRC), w/e B. S. Mallett (NRC), w/e Senior Resident Inspector (NRC), w/e L-Jr(--;5 P.O. Box 411 / Burlington, KS 66839 / Phone: (620) 364-8831 An Equal Opportunity Employer M/F/HCNVET

WOLF CREEK NUCLEAR OPERATING CORPORATION WOLF CREEK GENERATING STATION 2006 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT j

April 15, 2007

TABLE OF CONTENTS List of Tables ii List of Figures ii List of Charts ii Executive Summary 1

Introduction 1

I.

Program Description 1

II. Discussion of Results 4

II1. Program Revisions/Changes 9

IV. Program Deviations 9

V. Interlaboratory Comparison Program Results 9

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 - 2006 Individual Sample Results C-1 Air Particulate and Charcoal Filters C-1 Quarterly Air Particulate - Gamma C-13 Surface Water C-25 Ground Water C-33 Drinking Water C-49 Quarterly Drinking Water - Tritium C-59 Shoreline Sediment C-62 Fish C-64 Food/Garden C-69 Feed and Forage C-76 Bottom Sediment C-79 Aquatic Vegetation C-83 Terrestrial Vegetation C-86 Soil C-88 Deer C-90 Appendix D - 2006 Land Use Census Report D-1

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 1 Airborne Pathway Sampling Locations 19 2

Direct Radiation Pathway Sampling Locations 20 3 Waterborne 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 2006 in airborne particulate and radioiodine filters, ground water, drinking water, shoreline sediment, broadleaf vegetation, crops, terrestrial vegetation, aquatic vegetation, soil or deer samples. Activation, corrosion or fission products attributable to plant operation were detected during 2006 in surface water, fish, and bottom sediment samples.

Nuclides detected in Radiological Environmental Monitoring Program (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 had no significant radiological impact on the health and safety of the public or the environment.

INTRODUCTION The 2006 Annual Radiological Environmental Operating Report for Wolf Creek Generating Station (WCGS) covers the period from January 1 through December 31, 2006. WCGS is located in Coffey County, Kansas, approximately five miles northeast of Burlington, Kansas.

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

This report contains a description of the REMP conducted by Wolf Creek Nuclear Operating Corporation (WCNOC), 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.

I. 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.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 1 of 30

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 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.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 2 of 30

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

Drinking water was sampled at the water treatment facilities for the towns of Burlington (control location BW-15), Neosho Falls (indicator location NF-DW) and Iola (indicator location IO-DW).

The Burlington facility is located upstream and the Iola and Neosho Falls facilities are located downstream of the confluence of the discharge from Coffey County Lake and the Neosho River.

During 2006, the Neosho Falls water treatment facility closed.

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 four gardens. Two indicator (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. Two crop samples were obtained from control location NR-U1.

Gamma isotopic analysis was performed on each sample.

Crop sample locations are identified on Figure 5.

E. Additional Samples Collected (not required by ODCM)

Quarterly, duplicate ground water grab samples were obtained from indicator location C-49 and were labeled L-49. These duplicate samples served as laboratory quality checks. The ground water samples were analyzed for gamma emitters, 1-131 and tritium.

Bottom sediment samples were collected 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.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 3 of 30

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 locations EEA and MUDS. Gamma isotopic analysis was performed on the terrestrial vegetation sample. These samples were collected as part of a cooperative sampling effort with the KDHE. The sample locations are 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.

A deer sample was obtained from indicator location A.8.

Gamma isotopic analysis was performed on the deer sample. The sample was split with the KDHE. The sample location is 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.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 4 of 30

The gross beta results of 2006 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 2006 weekly gross beta analyses range for indicator locations was 0.014 to 0.059 pCi/m 3, which was within the 1983 and 1984 pre-operational range. Additionally, the annual mean for indicator locations for 2006 (0.029 pCi/m 3) was lower than the annual mean for 1983 (0.032 pCi/m 3).

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

The annual mean for indicator locations for 2006 (0.029 pCi/m 3) was similar to the annual mean of the control location (0.028 pCi/m 3).

Naturally occurring Be-7 activity was detected, as was the case during pre-operational monitoring.

In 1984, the range for Be-7 detected activity was 0.024 to 0.211 pCi/m 3 for indicator locations, and the annual mean for indicator locations was 0.069 pCi/m 3.

In 2006, the range for Be-7 detected activity was 0.058 to 0.113 pCi/m 3 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 (0.080 pCi/m 3) was similar to the indicator locations annual mean (0.088 pCi/m 3).

ODCM 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 2006 was 0.202 mR/day and the annual mean for the control locations was 0.192 mR/day. 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.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 5 of 30

C. Waterborne Pathway (1) Surface Water Tritium, attributable to WCGS operation, was detected in all surface water samples collected from Coffey County Lake during 2006. Chart 4 illustrates the yearly averages of surface water tritium data for the spillway location. Chart 4 shows that the average tritium concentration of the lake may have reached equilibrium since the last four years indicate a slightly downward trend.

ODCM required lower limits of detection were met and tritium activity was not detected in samples obtained from the control location (JRR).

During pre-operational 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 ODCM required lower limits of detection were met and radioactivity was not detected in any ground water samples.

(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.

Gross beta activity was detected in all drinking water samples. The annual mean of the control location gross beta activity (4.0 pCi/L) was higher when compared to the annual mean of the indicator locations (3.9 pCi/L).

The 2006 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.

ODCM 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 2006 and no unusual trends were noted.

(4) Shoreline Sediment Naturally occurring K-40 [11,521-12,123 pCi/kg, dry] was detected in samples obtained from the indicator location (DC) and in samples obtained from the control location (JRR) [7,107-11,308 pCi/kg, dry].

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

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 6 of 30

ODCM required lower limits of detection were met. Activity due to plant operation was not evident in shoreline sediment samples during 2006 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 2006, fish were also analyzed for tritium. All fish samples taken from Coffey County Lake had tritium activity detected (9,471.9 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 2006 (14,745 pCi/kg), would receive a committed effective dose equivalent of 0.019 mRem.

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

No other radionuclides were detected in fish during the year. The ODCM required lower limits of detection were met and no unusual trends were noted.

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

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.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 7 of 30

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 (107.3 and 139.1 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 2006.

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

Cs-137 activity (189.3 and 224.1 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-1 34 activity has been detected in the past. Cs-1 37 activity was detected in pre-operational samples, and the results for 2006 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 44 to 531 pCi/kg.) Cs-137 activity has been identified in plant effluents. Cs-137 activity (140.5 and 164.8 pCi/kg) was also detected in the control location samples and in the sample obtained from the indicator location EEA (96.9 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-1 37 activity detected at the JRR control location has been decreasing.

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 2006. 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 2006.

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.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 8 of 30

No other radionuclides were detected. No unusual trends were identified.

(5) Deer Gamma analysis detected naturally occurring K-40 (2860.5 pCi/kg wet) activity in the deer sample obtained from indicator location A.8.

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

K-40 was the only activity detected in the deer sample. No unusual trends were noted.

III. PROGRAM REVISIONS/CHANGES In 2006, the water treatment facility located at Neosho Falls closed. The Iola water treatment facility became the indicator drinking water sample location.

During 2006, garden location G-1 was removed from the program since the landowners have vacated the residence. Locations Q-6 and N-1 became the two indicator locations. Alternate garden location C-2 was added to the program.

Three new ground water sample locations were added to the REMP: F-i, G-2 and J-2. These locations were added based upon the recommendations in Performance Improvement Request (PIR) 2005-3037.

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.

Location Sample Period Percent Explanation of Deviation Discrepancy/

Hours Unavailable 49 01/05/06 - 01/11/06

>5%/-95 Equipment Malfunction 48 04/19/06 - 04/27/06

>5%/-103 Equipment Malfunction Drinking Water August/2006: The drinking water sampler at the control location (Burlington Water Treatment Plant) was found inoperable and did not collect water for approximately 54 hours6.25e-4 days <br />0.015 hours <br />8.928571e-5 weeks <br />2.0547e-5 months <br />. The sampler was removed from service and replaced with an operating unit. (Reference CR 2006-001481)

V. INTERLABORATORY COMPARISON PROGRAM RESULTS During 2006, Environmental, Inc., Midwest Laboratory was contracted to perform radiological analysis of environmental samples for WCNOC. The lab participated in the intercomparison 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 9 of 30

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 0.149 mRem for 2006.

Using sample data obtained from the REMP, an adult drinking 2 liters per day of surface water from Coffey County Lake, using the average tritium activity (11,286 pCi/L), would receive a committed effective dose equivalent of 0.515 mRem per year. For an adult eating 21 kg of fish per year from Coffey County Lake, using the average tritium activity (9,472 pCi/kg), would receive a committed effective dose equivalent of 0.012 mRem per year. Based upon the REMP results, the dose from both pathways was calculated to be 0.527 mRem per year.

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

The tritium dose values are being compared on a qualitative basis. It is not expected that the annual doses, as calculated in the Radioactive Effluent Release Report, would compare directly to those calculated from the REMP. The Radioactive Effluent Release Report provides a 'snap shot' of potential dose resulting from the year's releases.

The REMP data indicates the accumulated result of releasing tritium into the lake since the start of plant operation.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 10 of 30

TABLE 1 2006 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DESCRIPTION (SAMPLE COLLECTION SPECIFIED BY ODCM)

EXPOSURE PATHWAY/

SAMPLE TYPE NUMBER OF SAMPLES AND SAMPLE LOCATIONS (See Figures 1 & 5)

SAMPLE COLLECTION FREQUENCY TYPE AND FREQUENCY OF ANALYSIS AIRBORNE Radioiodine and Particulates Samples from six locations Continuous sampler operation with sample collection weekly, or more frequently if required, by dust loading.

Samples from locations near the site boundary in three sectors having the highest calculated annual average D/Q (Locations 2, 37, 49 and supplemental location 18 on Figure 1)

Analyze radioiodine canister weekly for 1-131 Analyze particulate filter weekly for gross beta activity; perform quarterly gamma isotopic analysis composite (by location)

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

Sample from a control location 9.5 to 18.5 miles distant in a low ranked D/Q sector (Location 48 on Figure 5) 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 11 of 30

TABLE 1 (Cont.)

EXPOSURE PATHWAY/

SAMPLE TYPE DIRECT RADIATION NUMBER OF SAMPLES AND SAMPLE LOCATIONS (See Figures 2 & 5) 42 routine monitoring stations with two or more dosimeters measuring dose continuously, placed as follows:

SAMPLE COLLECTION FREQUENCY TYPE AND FREQUENCY OF ANALYSIS Quarterly Gamma dose quarterly An inner ring of stations, one in each meteorological sector 0-3 mile range from the site (Locations 1, 7-9, 11-13, 18, 26, 27, 29-31, 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 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 12 of 30

TABLE 1 (Cont.)

EXPOSURE PATHWAY/

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

r S

S C

(i c

WATERBORNE

(

many locations are iear a residence),

chools (Location 23),

nd in two areas to

erve as control tations 10-20 miles listant from the site Locations 39 and 48 in Figure 5).

See Figure 3)

Surface Ground One sample upstream (Location JRR on Figure 3) and one sample downstream (Location SP on Figure 3).

Samples from one or two sources only if likely to be affected.

Monthly grab sample Quarterly grab sample Monthly gamma isotopic analysis and composite for tritium analysis quarterly Quarterly gamma isotopic and tritium analysis Indicator samples at locations hydrologically down gradient of the site (Locations C-10, C-49, F-1, G-2, J-1 and J-2 on Figure 3);

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

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 13 of 30

TABLE 1 (Cont.)

EXPOSURE PATHWAY/

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

Drinking Shoreline Sediment Sample of municipal water supply at an indicator location downstream of the site (Location IO-DW on Figure 5); control sample from location upstream of the site (Location BW-15 on Figure 3).

One sample from the vicinity of Coffey County Lake discharge cove (Location DC on Figure 3); control sample from John Redmond Reservoir (Location JRR on Figure 3).

(See Figures 4 & 5)

Samples from milking animals at three indicator locations within 5 miles of the site having the highest dose potential (currently there are no locations producing milk for human consumption within 5 miles of the site); one sample from a control location greater than 10 miles from the site if indicator locations are sampled.

Monthly Composite Semiannually Monthly gamma isotopic analysis and gross beta analysis of composite sample. Quarterly tritium analysis of composites.

Semiannual gamma isotopic analysis INGESTION Milk Semimonthly April to November; monthly December-March Gamma isotopic analysis and 1-131 analysis of each sample 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 14 of 30

TABLE 1 (Cont.)

EXPOSURE PATHWAY/

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

Fish Broadleaf Vegetation Irrigated Crops Indicator samples of 1 to 3 recreationally important species from Coffey County Lake; control samples of similar species from John Redmond Reservoir spillway (Figure 4).

Samples of available broadleaf vegetation from two indicator locations (using the criteria from the "Land Use Census" section) with highest calculated annual average D/Q (Locations Q-6 and N-1 and alternate location C-2 on Figure 4);

sample of similar broadleaf vegetation from a control location 9.5 to 18.5 miles distant in a low ranked D/Q sector (Location D-1 or alternate location D-2 on Figure 5).

Sample of crops irrigated with water from the Neosho River downstream of the Neosho River - Wolf Creek confluence (Location NR-D1 and NR-D2 on Figure 5).

Semiannually Gamma isotopic analysis on edible portions Monthly when available At time of harvest Gamma isotopic analysis on edible portions Gamma isotopic analysis on edible portions 2006 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

2006 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 S

J J-2 4.3 S

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 CCL 0.6 WNW P

JRR 3.7 W

N Food/Garden C-2 1.9 NE C

D-1 14.7 ENE D

D-2 14.8 ENE D

N-1 2.4 W

N Q-6 2.4 NW Q

Crops NR-D1 8.9 S

J NR-D2 11.5 S

J NR-U1 4.0 SSW K

Bottom Sediment DC 0.9 WNW P

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

MUDS 1.5 WNW P

Soil EEA 3.0 NNW R

MUDS 1.5 WNW P

Deer A.8 0.8 N

A 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 17 of 30

TABLE 3 TLD Results (mR/90-day qtr.)

Location Qtr. 1 Qtr. 1 2-Qtr. 2 Qtr. 2 2-Qtr. 3 Qtr. 3 2-f Qtr. 4 Qtr. 4 2-Total 90-Day std.

90-Day std.

Annual Avg.

dev.

Avg.

dev.

Avg.

dev.

Avg.

dev.

Exposure (mR) 1 2

3 4

5 6

7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 41 42 43 44 46 47 48 49 16.4 14.3 15.8 16.0 16.6 15.5 15.0 16.5 13.9 16.1 17.0 16.0 16.6 16.7 16.1 15.1 15.5 16.5 17.5 17.2 13.8 19.3 16.1 15.8 13.6 16.0 17.9 13.8 13.1 16.6 17.0 16.0 17.2 17.5 16.1 16.7 15.8 17.3 16.0 16.7 12.0 12.1 16.4 15.5 17.5 15.2 15.4 0.9 0.8 0.8 0.3 2.4 1.8 0.7 1.2 0.7 1.1 0.6 1.0 0.8 1.1 0.7 0.7 1.2 2.5 1.5 3.0 0.5 3.6 0.6 0.9 0.8 3.2 3.6 0.7 0.9 1.9 3.4 2.4 0.6 1.9 0.7 3.4 1.4 1.5 0.9 0.9 3.2 3.5 1.8 0.2 2.3 1.2 0.9 21.3 19.5 20.1 23.2 19.8 19.3 19.8 21.3 19.4 20.6 21.6 20.6 21.1 21.4 21.9 20.5 20.8 20.2 21.8 20.9 18.5 21.6 21.1 21.1 20.7 19.5 20.4 19.7 18.0 21.7 19.8 20.9 22.8 21.8 22.0 21.9 20.7 23.0 18.9 21.6 16.0 14.9 20.6 19.7 21.8 19.5 20.2 1.1 0.9 0.6 1.9 1.2 1.0 0.9 1.0 2.8 1.0 1.2 0.9 0.9 1.7 2.6 0.8 0.9 1.3 1.3 1.1 0.8 1.6 2.6 2.0 3.3 1.0 0.3 3.1 1.5 1.2 1.5 1.0 2.6 1.8 1.2 3.6 2.8 2.3 1.3 2.0 1.3 0.9 1.6 1.4 1.7 1.6 0.8 18.1 15.6 17.2 17.7 16.5 17.8 17.4 17.7 16.4 17.7 19.5 18.8 19.9 18.2 17.9 17.8 18.2 18.8 18.3 19.2 16.6 21.8 18.3 18.0 16.1 15.1 17.1 14.4 13.6 18.8 15.9 15.7 19.7 17.5 17.1 17.2 15.9 17.7 15.9 17.6 10.9 10.6 17.1 17.8 15.8 16.1 15.6 1.3 0.9 0.9 0.6 1.0 0.7 1.3 1.5 0.6 0.4 1.1 0.9 1.4 1.7 2.1 2.7 1.0 1.8 0.9 1.6 0.9 0.9 3.6 1.0 3.0 0.8 0.5 1.2 0.3 1.7 0.8 1.4 3.4 1.0 0.9 0.4 0.6 0.9 1.2 0.9 0.4 1.1 1.4 3.5 1.2 0.9 0.6 19.8 18.2 19.2 19.3 18.3 18.4 19.5 21.5 17.4 19.4 20.5 19.1 20.0 19.5 19.8 18.4 19.4 20.0 20.3 19.2 17.2 21.1 19.6 20.7 17.1 18.1 20.0 18.1 16.9 19.4 18.9 18.7 20.3 20.2 19.6 19.2 18.6 20.1 18.3 20.3 14.1 13.7 19.0 19.2 21.8 18.6 18.6 0.9 1.0 1.1 1.1 1.5 1.0 2.6 2.1 0.8 0.5 1.1 0.7 0.6 0.9 1.2 0.8 1.6 3.1 1.7 2.0 0.8 0.9 0.8 3.2 1.0 1.0 0.9 1.5 1.0 0.5 0.9 1.1 0.8 1.4 0.8 1.0 1.3 1.0 1.4 1.1 0.6 1.8 0.8 1.1 2.2 1.5 0.9 75.6 67.7 72.3 76.2 71.2 71.1 71.7 76.9 67.2 73.8 78.7 74.5 77.6 75.7 75.6 71.8 73.8 75.4 77.9 76.5 66.1 83.8 75.1 75.6 67.6 68.7 75.4 66.1 61.7 76.7 71.5 71.3 80.0 77.0 74.8 75.1 71.0 78.2 69.1 76.2 53.1 51.3 73.2 72.2 76.8 69.4 69.7 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 18 of 30

FIGURE 1 AJIRBFRNE FA1IWAYSMRJNG LOCA-IONS 0

= AIFRORNE PARlC UATIE AND RADIOIODINE 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 19 of 30

FIGURE 2 DIFECTRADIA-ON PA-IWAYSA\\RMNG LOCA10NS 0 = -[D LOCATONS 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 20 of 30

FIGURE 3 WA-IEU RNE PA'HWAY S,'MPUNG LOCAI'ONS

=DRINKING V\\ATER

=GRDUND V\\ATER

=RD1OM SEIMENT A = SJRFAC E WA-ER

= 9-1OREUINESE)IMENT

= AQUA1IC VEGEIA-ON/

ALGAE 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 21 of 30

FIGURE 4 INGESTION A = AS-%i (J RR)

PA'HWAY SMFRJNG LOCA-IONS 0

= EROADLEAFVEGER1TON t

= FISH (CCL)

= 801L V

- DEER

= ]ERRFSIR1ALVEGE1Ar1ON 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 22 of 30

FIGURE 5 A

R B

C D

E F

G J

DISIANTSAM JNG

=

lD

= AJF;BDF;E FAMCA-E & RFAD1OIODINE 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 23 of 30

CHART 1 2006 Airborne Gross Beta Weekly Results a)~

E (n

0.060 0.050 0.040 0.030 0.020 0.010 0.000 S

+

A 0

0+

A 13 A

A U

S.

A~Uht+

~

4

~A~

/+

+

~~~a A

+

A

~

+

S I 7

/~++

M

.11 LJ~~L-0 4

8 12 16 20 24 28 32 36 40 44 48 52 Week Number o Location 2 o Location 18

+ Location 32 A Location 37 Location 48 (Control) u Location 49 2006 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 C.)

0 0~

C,)

.-0 0

0E 0.060 T 0.050 !

0.040 H 0.030 1 0.020 0.010 I Chernobyl accident I 0

I 0

c~N 0\\C 0

00 00

- - - Smoothed Avg. Indicator Locations S

L Smoothed Avg. Control Location (48) moothed Avg. Control Location (40) i 2006 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 28.0 26.0 24.0 E 22.0 20.0 18.0 16.0 14.0 12.0 -"

1980 1982 1984 1986 1988 1990 1992 1994 1996 1998 2000 2002 2004 2006 Avg. of Nearsite Locations i--

Moving Avg. of Nearsite Locations (2 period) -

A Avg. of Control Locations

- Moving Avg. of Control Locations (2 period) 2006 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-R2 = 0.9048 0

6000 4000 2000 1987 1989 1991 1993 1995 1997 1999 2001 2003 2005

,---+-Yearly Average of Spillway Location --

Polynomial Trendline I

2006 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 27 of 30

CHART 5 Drinking Water Gross Beta (5 years)

I-a)0 0t}

Cn Wu

(.9 9

8 7

6 5

4 3

2 1

-BW15 (Control)

LW40 (indicator)

NFDW (Indicator)

IODW (Indicator)1 2006 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 1000 500 -

0 r-I cO a

0 N

CM It O

CD w

r-00 0M 0

N co I

U1) wD 00 00 00 M

a)

)

0)

M

0)

M

)

0)

0) oD 0

o o

0 0

0 M0

0)

M M

0)

0) 0 0

0 0

0 co c

ci c

cM cM cM co cc cc cc cM co Co co co Co CO MO 0

0 0

0 -

Co-60 -Polynomial Trendline 2006 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 29 of 30

CHART 7 Detected Cs-137 Activity in Bottom Sediment I

1000 900 800 700 600 3

500 400 300 200 100 0

N-LO (I-co 0

(NJ M

'IT in N

cO 0M 0

N.

N*

C T

V-( O co cO c0 00 CD CD

0)

M

0) 0 0

0

0)

0) 0M

0) 0 0

0 0

0 O

1,-

0 00 0

(D (0

(

1 0

1 0)D N--

N M

N-l LO 0

0) 0 0

0 0

N-0 C-0 0

I DC Cs-137 JRR Cs-137 -

Polynomial Trendline (DC)

Polynomial Trendline (JRR) 2006 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 30 of 30

Environmental, Inc.

Midwest Laboratory an Afteqmy Tedinoiles Co.

700 Landwehr Road

Northbrook, IL 60062-2310 ph. (847) 564-0700

fax (847) 564-4517 APPENDIX A INTERLABORATORY COMPARISON PROGRAM RESULTS NOTE:

Environmental Inc., Midwest Laboratory participates in intercomparison studies administered by Environmental Resources Associates, and serves as a replacement for studies conducted previously by the U.S. EPA Environmental Monitoring Systems Laboratory, Las Vegas, Nevada. Results are reported in Appendix A. TLD Intercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also reported. Appendix A is updated four times a year; the complete Appendix is included in March, June, September and December monthly progress reports only.

January, 2006 through December, 2006

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

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

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

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 "spiked" samples for the past twelve months. All samples are prepared using NIST traceable sources. Data for previous years available upon request.

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

Table A-5 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

LABORATORY PRECI Analysis Gamma Emitters Strontium-89b Strontium-90b Potassium-40 Gross alpha Gross beta Tritium Radium-226,-228 Plutonium Iodine-131, Iodine-129b Uranium-238, Nickel-63b Technetium-99b Iron-55b Attachment A ACCEPTANCE CRIT-ERIA FOR "SPIKED" SAMPLES SION: ONE STANDARD DEVIATION VALUES FOR VARIOUS ANALYSESa One standard deviation Level for single determination 5 to 100 pCi/liter or kg 5.0 pCi/liter

> 100 pCi/liter or kg 5% of known value 5 to 50 pCi/liter or kg 5.0 pCi/liter

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

> 30 pCi/liter or kg 10% of known value

? 0.1 g/liter or kg 5% of known value

< 20 pCilliter 5.0 pCi/liter

> 20 pCi/liter 25% of known value

< 100 pCi/liter 5.0 pCi/liter

> 100 pCi/liter 5% of known value

< 4,000 pCi/liter

+/- lo = (pCi/liter) =

169.85 x (known) 0° 0'°

> 4,000 pCi/liter 10% of known value a 0.1 pCi/liter 15% of known value

? 0.1 pCi/liter, gram, or sample 10% of known value 5 55 pCi/liter 6.0 pCi/liter

> 55 pCi/liter 10% of known value

< 35 pCi/liter 6.0 pCi/liter

> 35 pCi/liter 15% of known value 50 to 100 pCi/liter

> 100 pCi/liter 10 pCi/liter 10% of known value 20% of known value Othersb a From EPA publication, 'Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-600/4-81-004.

b Laboratory limit.

A2

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

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Resultb Resultc Limits Acceptance STW-1078 STW-1078 STW-1079 STW-1079 STW-1079 STW-1079 STW-1079 STW-1080 STW-1080 STW-1081 STW-1081 STW-1081 STW-1088 STW-1088 STW-1089 STW-1089 STW-1089 STW-1089 STW-1089 STW-1090 STW-1090 STW-1091 STW-1092 STW-1092 STW-1092 STW-1092 01/16/06 01/16/06 01/16/06 01/16/06 01/16/06 01/16/06 01/16/06 01/16/06 01/16/06 01/16/06 01/16/06 01/16/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 04/10/06 Sr-89 Sr-90 Ba-133 Co-60 Cs-i 34 Cs-137 Zn-65 Gr. Alpha Gr. Beta Ra-226 Ra-228 Uranium Sr-89 Sr-90 Ba-1 33 Co-60 Cs-1 34 Cs-1 37 Zn-65 Gr. Alpha Gr. Beta 1-131 H-3 Ra-226 Ra-228 Uranium 49.9 +/- 3.5 31.5 +/- 1.5 86.5 +/- 4.1 96.3 +/- 4.1 22.6 +/- 3.0 109.0 +/- 5.9 198.0 +/- 11.2 10.8 +/- 1.4 56.9 +/- 1.9 4.3 +/- 0.4 7.1 +/- 1.8 20.7 +/- 0.5 29.0 +/- 1.8 8.7 +/- 1.0 10.3 +/-0.4 114.0 +/-2.8 41.9 +/- 1.4 208.0 +/- 1.1 154.0 +/-0.8 13.4 +/- 1.1 27.7 +/- 2.1 22.0 +/-0.3 7960.0 +/- 57.0 2.9 +/- 0.4 20.9 +/- 1.2 68.6 +/- 3.4 15.9 +/-0.7 24.3 +/- 0.4 94.9 +/- 8.9 104.0 +/- 1.8 48.7 +/- 1.3 236.0 +/- 3.0 126.0 +/- 8.0 10.9 +/- 1.0 9.7 +/- 0.4 11.0 +0.5 12.2 +/-0.8 43.4 +/-0.1 50.2 30.7 95.0 95.3 23.1 111.0 192.0 9.6 61.9 4.6 6.6 22.1 32.4 9.0 10.0 113.0 43.4 214.0 152.0 21.3 23.0 19.1 8130.0 3.0 19.1 69.1 19.7 25.9 88.1 99.7 54.1 238.0 121.0 10.0 8.9 10.7 10.7 40.3 41.5 -58.9 22.0 - 39.4 78.6 -111.0 86.6 - 104.0 14.4 -31.8 101.0 -121.0 159.0 - 225.0 1.0 -18.3 44.6 -79.2 3.4 -5.8 3.7 - 9.5 16.9 - 27.3 23.7 -41.1 0.3 - 17.7 1.3 -18.7 103.0 - 123.0 34.7 - 52.1 195.0 - 233.0 126.0 - 178.0 12.1 -30.5 14.3 -31.7 13.9 -24.3 6720.0 - 9540.0 2.2 -3.8 10.8 -27.4 57.1 -81.1 11.0 -28.4 17.2 -34.6 72.9 - 103.0 91.0 - 108.0 45.4 - 62.8 217.0 - 259.0 100.0 - 142.0 1.3 - 18.6 0.2 - 17.5 7.9 - 13.5 6.1 -15.3 33.3 -47.3 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass STW-1094 07/10/06 Sr-89 STW-1094 07/10/06 Sr-90 STW-1095 07/10/06 Ba-133 STW-1095 07/10/06 Co-60 STW-1095 07/10/06 Cs-1 34 STW-1095 07/10/06 Cs-1 37 STW-1095 07/10/06 Zn-65 STW-1096 07/10/06 Gr. Alpha STW-1096 07/10/06 Gr. Beta STW-1097 07/10/06 Ra-226 STW-1097 07/10/06 Ra-228 STW-1097 07/10/06 Uranium A1-1

TABLE A-1. Interlaboratory Comparison Crosscheck program, Environmental Resource Associates (ERA)6.

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Resultb Resultc Limits Acceptance STW-1104 10/06/06 Sr-89 38.4 +/- 1.3 39.9 31.2 -45.7 Pass STW-1104 10/06/06 Sr-90 15.5 +/-:0.5 16.0 7.3 -24.7 Pass STW-1105 10/06/06 Ba-133 64.9 +/- 2.8 70.2 58.1 -82.3 Pass STW-1105 10/06/06 Co-60 61.6 +/- 1.0 62.3 53.6 -71.0 Pass STW-1105 10/06/06 Cs-134 29.0 +/- 0.9 29.9 21.2 -38.6 Pass STW-1105 10/06/06 Cs-1 37 77.8 +/- 2.4 78.2 69.5 -86.9 Pass STW-1105 10/06/06 Zn-65 293.0 +/- 2.4 277.0 229.0 - 325.0 Pass STW-1106 10/06/06 Gr. Alpha 23.9 +/- 2.5 28.7 16.3 -41.1 Pass STW-1106 10/06/06 Gr. Beta 23.7 +/- 1.4 20.9 12.2 -29.6 Pass STW-1107 d 10/06/06 1-131 28.4 +/- 1.2 22.1 16.9 -27.3 Fail STW-1108 10/06/06 Ra-226 14.5 +/- 0.5 14.4 10.7 - 18.1 Pass STW-1108 10/06/06 Ra-228 6.6 +/- 0.4 5.9 3.3 -8.4 Pass STW-1108 10/06/06 Uranium 2.9 +/- 0.1 3.2 0.0 -8.4 Pass STW-1 109 10/06/06 H-3 3000.0 +/- 142.0 3050.0 2430.0 - 3670.0 Pass a Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the crosscheck program for proficiency testing in drinking water conducted by Environmental Resources Associates (ERA).

b Unless otherwise indicated, the laboratory result is given as the mean +/- standard deviation for three determinations.

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

d The reported result was an average of three analyses, results ranged from 25.36 to 29.23 pCi/L.

A fourth analysis was performed, result of analysis, 24.89 pCi/L.

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.

2006-1 6/5/2006 2006-1 6/5/2006 2006-1 6/5/2006 2006-1 6/5/2006 2006-1 6/5/2006 2006-1 6/5/2006 2006-1 6/5/2006 2006-1 6/5/2006 2006-1 6/5/2006 Environmental, Inc.

2006-2 11/6/2006 2006-2 11/6/2006 2006-2 1116/2006 2006-2 11/6/2006 2006-2 11/6/2006 2006-2 11/6/2006 2006-2 11/6/2006 2006-2 1116/2006 2006-2 11/6/2006 30 cm 60 cm 60 cm 90 cm 120 cm 120 cm 150 cm 150 cm 180 cm 30 cm.

40 cm.

50 cm.

60 cm.

75 cm.

90 cm.

120 cm.

150 cm.

180 cm.

54.81 13.70 13.70 6.09 3.43 3.43 2.19 2.19 1.52 55.61 31.28 20.02 13.90 8.90 6.18 3.48 2.22 1.54 70.73 +/- 0.69 16.71 +/- 1.89 16.69 +/- 0.94 6.57 +/- 0.82 3.65 +/- 0.22 3.09 +/- 0.33 2.35 +/- 0.38 1.98 +/- 0.10 1.56 +/- 0.26 60.79 +/- 1.32 35.93 +/- 3.70 21.55 +/- 1.20 14.90 +/- 1.42 8.03 +/- 0.51 6.88 +/- 0.68 2.90 +/- 0.20 1.99 +/- 0.07 1.79 +/- 0.94 38.37 - 71.25 9.59 - 17.81 9.59 - 17.81 4.26 - 7.92 2.40 -4.46 2.40 -4.46 1.53 - 2.85 1.53 - 2.85 1.06 - 1.98 38.93 - 72.29 21.90 - 40.66 14.01 - 26.03 9.73 - 18.07 6.23 -11.57 4.33 - 8.03 2.44 -4.52 1.55 -2.89 1.08 - 2.00 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A2-1

TABLE A-3. In-House "Spike" Samples Concentration (pCi/L)a Lab Code b Date Analysis Laboratory results Known Control 2s, n=1 c Activity Limits d Acceptance SPW-301 SPAP-1 224 SPAP-1224 SPAP-1224 SPW-1228 SPW-1230 SPW-1230 SPMI-1232 SPMI-1232 W-30906 W-30906 SPW-2750 SPW-2869 SPAP-2871 SPAP-2871 SPW-2875 STSO-3155 STSO-3155 STSO-3155 SPAP-2873 SPF-3183 SPF-3183 SPW-3460 W-60606 W-60606 SPW-3988 SPW-3988 SPW-3988 SPW-3988 SPW-3988 SPMI-3990 SPMI-3990 SPMI-3990 SPMI-3991 SPW-4356 W-90506 W-90506 SPAP-6950 SPAP-6950 SPAP-6952 1/20/2006 3/7/2006 3/712006 3/7/2006 3/7/2006 3/7/2006 3/7/2006 3/7/2006 3/7/2006 3/9/2006 3/9/2006 4/27/2006 5/11/2006 5/1/2006 5/1/2006 5/1/2006 5/1/2006 5/1/2006 5/1/2006 5/2/2006 5/10/2006 5/10/2006 5126/2006 6/6/2006 6/6/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 7/5/2006 9/5/2006 9/5/2006 9/30/2006 9/30/2006 9/30/2006 Fe-55 Cs-1 34 Cs-1 37 Gr. Beta H-3 Cs-1 34 Cs-137 Cs-134 Cs-1 37 Gr. Alpha Gr. Beta Ni-63 Fe-55 Cs-134 Cs-137 H-3 Co-60 Cs-1 34 Cs-137 Gr. Beta Cs-1 37 Cs-1 34 C-14 Gr. Alpha Gr. Beta Cs-134 Cs-137 1-131(G)

Sr-89 Sr-90 Cs-134 Cs-1 37 1-131(G) 1-131 1-131 Gr. Alpha Gr. Beta Cs-1 34 Cs-1 37 Gr. Beta 2700.10 +/- 70.00 37.13 +/- 3.70 118.25 +/- 8.97 520.32 +/- 7.42 70891.00 +/- 719.00 38.58 +/- 2.10 59.44 +/- 4.51 41.20 +/- 1.33 57.82 +/- 3.96 24.24 +/- 0.47 63.79 +/- 0.48 116.00 + 2.49 19473.00 +/- 188.00 33.97 + 1.10 114.44 2.81 71057.00 + 730.20 7950.80 +/- 67.29 12.49 +/- 0.13 14.10 +/- 0.12 1724.80 +/- 4.51 2.47 +/- 0.03 0.73 + 0.01 4009.60 +/- 14.43 21.94 +/- 0.46 58.17 +/- 0.49 35.56 +/- 1.40 60.23 +/- 2.72 94.01 +/- 4.38 52.40 +/- 4.23 45.35 +/- 1.95 35.52 +/- 5.05 56.78 +/- 3.86 95.04 +/- 5.05 96.55 +/- 0.87 80.88 +/- 1.09 23.11 +/- 0.45 65.01 +/- 0.51 28.93 +/- 1.56 116.62 +/- 2.97 52.96 +/- 0.14 2502.50 39.52 119.30 455.00 75394.00 39.51 59.65 39.51 59.65 20.08 65.73 100.00 23332.00 37.50 118.90 75394.00 7750.00 11.59 11.63 1744.00 2.38 0.74 4741.00 20.08 65.73 36.00 59.27 99.30 58.16 41.21 36.00 59.27 99.30 99.30 77.23 20.08 65.73 32.65 117.75 53.50 2002.00 - 3003.00 29.52 - 49.52 107.37 - 131.23 364.00 - 637.00 60315.20 - 90472.80 29.51 - 49.51 49.65 - 69.65 29.51 - 49.51 49.65 - 69.65 10.04 - 30.12 55.73 - 75.73 60.00 - 140.00 18665.60 - 27998.40 27.50 - 47.50 107.01 - 130.79 60315.20 - 90472.80 6975.00 - 8525.00 1.59 -21.59 1.63 -21.63 1395.20 - 2441.60 1.43 - 3.33 0.44 -1.04 2844.60 - 6637.40 10.04 - 30.12 55.73 - 75.73 26.00 - 46.00 49.27 - 69.27 89.30 - 109.30 46.53 - 69.79 32.97 - 49.45 26.00 - 46.00 49.27 - 69.27 89.30 - 109.30 79.44 - 119.16 61.78 - 92.68 10.04 - 30.12 55.73 - 75.73 22.65 - 42.65 105.98 - 129.53 42.80 - 74.90 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A3-1

TABLE A-3. In-House "Spike" Samples Concentration (pCi/L)

Lab Code Date Analysis Laboratory results Known Control 2s, n=lb Activity Limitsc Acceptance SPW-6954 SPW-6954 SPMI-6956 SPMI-6956 W-120106 W-120106 SPAP-9476 SPAP-9478 SPAP-9478 SPW-9480 SPW-9483 SPW-9488 SPW-9488 SPMI-9490 SPMI-9490 SPF-9492 SPF-9492 9/30/2006 9/30/2006 9/30/2006 9/30/2006 12/1/2006 12/1/2006 12/29/2006 12/29/2006 12/29/2006 12/29/2006 12/29/2006 12/29/2006 12/29/2006 12/29/2006 12/29/2006 12/29/2006 12/29/2006 Cs-1 34 Cs-137 Cs-134 Cs-1 37 Gr. Alpha Gr. Beta Gr. Beta Cs-134 Cs-137 H-3 Tc-99 Cs-134 Cs-1 37 Cs-134 Cs-1 37 Cs-134 Cs-1 37 63.29 +/- 8.24 60.41 1 7.53 69.26 +/- 4.85 61.35 +/- 7.62 22.40 +/- 1.03 63.70 +/- 1.14 57.51 +/- 0.14 26.84 +/- 1.23 110.54 +/- 3.12 68972.20 +/- 748.00 29.43 +/- 0.84 61.35 +/- 1.65 60.30 +/- 2.76 58.99 +/- 5.43 54.16 +/- 7.85 0.64 +/- 0.01 2.61 +/- 0.03 65.30 58.87 65.31 58.87 20.08 65.73 53.16 30.06 117.10 72051.60 32.98 60.10 56.80 60.10 56.80 0.60 2.34 55.30 - 75.30 48.87 - 68.87 55.31 - 75.31 48.87 - 68.87 10.04 - 30.12 55.73 - 75.73 42.53 - 74.42 20.06 - 40.06 105.39 - 128.81 57641.28 - 86461.92 20.98 - 44.98 50.10 - 70.10 46.80 - 66.80 50.10 - 70.10 46.80 -66.80 0.36 -0.84 1.40-3.28 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass a Liquid sample results are reported in pCi/Liter, air filters( pCi/filter), charcoal (pCi/mr3), and solid samples (pCi/g).

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

CH (charcoal canister), F (fish).

c Results 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 A4. In-House "Blank" Samples Concentration (pCi/L)8 Lab Code Sample Date Analysisb Laboratory results (4.66a)

Acceptance Type LLD Activityc Criteria (4.66 c)

SPW-302 SPAP-1225 SPW-1231 SPW-1231 W-30906 W-30906 SPW-2751 SPW-2868 SPW-2874 SPAP-2872 SPF-3154 SPF-3154 SPW-3461 W-60606 W-60606 SPW-3989 SPW-3989 SPW-3989 SPW-3989 SPW-3989 SPW-3989 SPMI-3991 SPMI-3991 SPMI-3991 SPMI-3991 SPMI-3991 SPMI-3991 W-90506 W-90506 SPMI-6383 SPMI-6383 d SPAP-6949 SPAP-6949 SPAP-6951 SPW-6953 SPW-6953 SPW-6953 SPW-6953 water Air Filter water water water water water water water Air Filter Fish Fish water water water water water water water water water Milk Milk Milk Milk Milk Milk water water Milk Milk Air Filter Air Filter Air Filter water water water water 1/20/2006 3/7/2006 3/7/2006 3/712006 3/9/2006 3/9/2006 4/27/2006 5/1/2006 5/1/2006 5/212006 5/1012006 5/10/2006 5/26/2006 6/6/2006 6/6/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 6/16/2006 9/5/2006 9/5/2006 9/14/2006 9/1412006 9/30/2006 9/30/2006 9/30/2006 9/30/2006 9/30/2006 9/30/2006 9/30/2006 Fe-55 Gr. Beta Cs-134 Cs-137 Gr. Alpha Gr. Beta Ni-63 Fe-55 H-3 Gr. Beta Cs-134 Cs-137 C-14 Gr. Alpha Gr. Beta Cs-134 Cs-137 1-131 1-131(G)

Sr-89 Sr-90 Cs-1 34 Cs-137 1-131 1-131(G)

Sr-89 Sr-90 Gr. Alpha Gr. Beta Sr-89 Sr-90 Cs-134 Cs-1 37 Gr. Beta Cs-134 Cs-137 Sr-89 Sr-90 1061 1.16 2.71 2.05 0.037 0.076 1.48 18.07 166.00 1.18 16.4 13.7 10.20 0.05 0.16 3.00 3.65 0.21 8.34 0.54 0.58 4.42 3.88 0.28 3.76 0.61 0.52 0.06 0.16 0.97 0.57 0.89 0.91 1.12 3.91 5.61 0.79 0.60

-91 +/- 637

-0.512 +/- 51.20 0.005 +/- 0.026

-0.016 +/- 0.052 0.37 +/- 0.91 4.33 +/- 11.27

-8.3 +/- 86.9

-3.65 +/- 0.64

-7.9 +/- 5.20 0.013 +/- 0.037

-0.044 +/- 0.11 0.045 +/- 0.14 0.005 +/- 0.45

-0.079 +/- 0.26

-0.22 +/- 0.19

-0.25 +/- 0.76 0.88 +/- 0.34 0.00 +/- 0.04 0.05 +/- 0.11

-0.18 +/- 0.92 0.65 +/- 0.33

-0.54 +/- 0.64

-0.14 +/- 0.64 0.11 +/- 0.29 1000 3.2 10 10 1

3.2 20 1000 200 3.2 100 100 200 1

3.2 10 10 0.5 20 5

1 10 10 0.5 20 5

1 1

3.2 5

1 100 100 3.2 10 10 5

1 A4-1

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

Acceptance Type LLD Activityc Criteria (4.66 o)

SPMI-6955 Milk 9/30/2006 Cs-134 2.86 10 SPMI-6955 Milk 9/3012006 Cs-137 2.39 10 SPMI-6955 Milk 9/30/2006 1-131(G) 9.98 0.5 W-120106 water 12/1/2006 Gr. Alpha 0.11 0.066 +/- 0.072 1

W-120106 water 12/1/2006 Gr. Beta 0.30 0.093 +/- 0.16 3.2 SPAP-9477 Air Filter 12/29/2006 Gr. Beta 1.13

-0.37 +/- 0.66 3.2 SPAP-9479 Air Filter 12/2912006 Cs-1 37 0.87 100 SPW-9481 water 12/29/2006 H-3 146.2 63.2 +/- 80.1 200 SPW-9483 water 12/29/2006 Tc-99 0.95

-1.20 +/- 0.56 10 SPW-9489 water 12/29/2006 Cs-134 2.30 10 SPMI-9491 Milk 12/29/2006 Cs-134 3.10 10 SPMI-9491 Milk 12/29/2006 Cs-137 2.90 10 SPMI-9491 Milk 12/29/2006 1-131(G) 8.00 20 SPF-9493 Fish 12/29/2006 Cs-134 7.6 100 SPF-9493 Fish 12/29/2006 Cs-137 7.9 100 Liquid sample results are reported in pCi/Liter, air filters( pCi/filter), charcoal (pCi/charcoal canister), and solid samples (pCi/kg).

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

r Activity reported is a net activity result. For gamma spectroscopic analysis, activity detected below the LLD value is not reported d Low levels of Sr-90 are still detected in the environment. A concentration of (1-5 pCi/L) in milk is not unusual.

A4-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance AP-7466, 7467 AP-7513, 7514 AP-7555, 7556 MI-154, 155 MI-217, 218 MI-217, 218 MI-287, 288 MI-287, 288 WW-314, 315 WW-314,315 SWT-577, 578 SWU-598, 599 SWU-598, 599 F-3311, 3 3 12 b F-3311, 3312 SW-780, 781 SW-780, 781 DW-934, 935 DW-1024, 1025 MI-1078, 1079 F-1357, 1358 F-1 357, 1358 MI-1469, 1470 CF-1538, 1539 WW-1583, 1584 DW-1955, 1956 MI-1760, 1761 AP-2603, 2604 E-1997, 1998 E-1997, 1998 AP-2818, 2819 SWU-2863, 2864 SS-2389, 2390 SS-2389, 2390 DW-2773, 2774 SL-2932, 2933 SL-2932, 2933 SL-2932, 2933 BS-3103, 3104 BS-3103, 3104 MI-3037, 3038 MI-3037, 3038 1/3/2006 1/3/2006 1/3/2006 1/10/2006 1/11/2006 1/11/2006 1/1712006 1/17/2006 1/19/2006 1/19/2006 1/31/2006 1/31/2006 1/31/2006 2/9/2006 2/9/2006 2/14/2006 2/14/2006 2/17/2006 2/24/2006 3/1/2006 3/10/2006 3/10/2006 3/14/2006 3/21/2006 3/22/2006 3/27/2006 3/29/2006 3/29/2006 4/312006 4/3/2006 4/3/2006 4/3/2006 4/3/2006 4/11/2006 4/11/2006 4/21/2006 5/1/2006 5/1/2006 5/1/2006 5/1/2006 5/1/2006 5/2/2006 5/2/2006 Be-7 Be-7 Be-7 K-40 K-40 Sr-90 K-40 Sr-90 Gr. Beta H-3 Gr. Beta Gr. Beta H-3 Gr. Beta K-40 Gr. Alpha Gr. Beta 1-131 1-131 Sr-90 Gr. Beta K-40 K-40 K-40 Gr. Beta Gr. Beta K-40 Be-7 Gr. Beta K-40 Be-7 Gr. Beta Gr. Beta K-40 1-131 Be-7 Gr. Beta K-40 Gr. Beta K-40 K-40 Sr-90 0.053

0.015 0.033 +/- 0.008 0.053 +/- 0.007 1254.20 +/- 87.75 1258.00 +/- 118.00 1.27 +/- 0.37 1383.10 +/- 110.90 0.74 +/- 0.38 9.21 +/- 1.72 168.64 +/- 94.94 3.06 +/- 0.66 2.03 +/- 0.39 260.10 +/- 98.20 4.12 +/- 0.14 2.68 +/- 0.37 4.09 +/- 1.52 5.91 +/- 0.90 0.35 +/- 0.22 0.24 +/- 0.26 1.42 +/- 0.39 3.77 +/- 0.07 2.46 +/- 0.32 1396.30 +/- 120.80 13.66 +/- 0.81 7.66 +/- 0.73 2.25 +/- 0.60 1271.00 +/- 89.00 0.067 +/- 0.015 1.82 + 0.07 1.28 +/- 0.15 0.06 +/- 0.01 3.20 +/- 1.26 10.53 +/- 0.96 5.51 +/- 0.42 0.74 +/- 0.23 1.28 +/- 0.19 6.09 +/- 0.33 3.13 +/- 0.41 8.27 +/- 1.46 6288.20 +/- 585.20 1238.90 +/- 98.59 1.76 +/- 0.42 0.057 +/- 0.011 0.036 +/- 0.008 0.054 +/- 0.008 1369.60 +/- 102.80 1313.00 +/- 98.00 0.92 +/- 0.33 1457.80 +/- 119.10 0.94 +/- 0.37 11.52 +/- 1.93 210.12 +/- 96.51 3.68 +/- 0.64 1.97 +/- 0.40 134.10 +/- 93.50 3.82 +/- 0.13 2.76 +/- 0.39 3.22 +/- 1.37 5.89 +/- 0.92 0.31 +/- 0.25 6.53 +/- 0.24 1.30 +/- 0.62 3.71 +/- 0.07 2.32 +/- 0.44 1335.60 +/- 113.80 13.97 +/- 0.68 8.87 +/- 0.75 3.15 +/- 0.59 1378.00 +/- 113.00 0.056 +/- 0.010 1.87 +/- 0.07 1.24 +/- 0.21 0.06 +/- 0.01 4.77 +/- 1.30 9.38 +/- 0.84 5.79 +/- 0.40 0.53 +/- 0.40 1.27 +/- 0.17 5.65 +/- 0.31 3.09 +/- 0.36 9.03 +/- 1.59 5643.70 +/- 599.80 1301.00 +/- 103.90 1.48 +/- 0.42 0.055 +/- 0.009 0.035 +/- 0.006 0.053 +/- 0.005 1311.90 +/- 67.58 1285.50 +/- 76.69 1.10 +/- 0.25 1420.45 +/- 81.37 0.84 +/- 0.27 10.37 +/- 1.29 189.38 +/- 67.69 3.37 +/- 0.46 2.00 +/- 0.28 197.10 +/- 67.80 3.97 +/- 0.10 2.72 +/- 0.27 3.66 +/- 1.03 5.90 +/- 0.64 0.33 +/- 0.16 0.39 +/- 0.18 1.36 +/- 0.37 3.74 +/- 0.05 2.39 +/- 0.27 1365.95 +/- 82.98 13.81 +/- 0.53 8.26 +/- 0.52 2.70 +/- 0.42 1324.50 +/- 71.92 0.062 +/- 0.009 1.85 +/- 0.05 1.26 +/- 0.13 0.06 +/- 0.01 3.99 +/- 0.91 9.96 +/- 0.64 5.65 +/- 0.29 0.63 +/- 0.23 1.28 +/- 0.13 5.87 +/- 0.23 3.11 +/- 0.27 8.65 +/- 1.08 5965.95 +/- 418.99 1269.95 +/- 71.62 1.62 +/- 0.29 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A5-1

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance MI-3124, 3125 SW-3145, 3146 SW-3145, 3146 MI-3236, 3237 F-3422, 3423 G-3491, 3492 G-3491, 3492 SO-3539, 3540 SO-3539, 3540 WW-3751, 3752 F-3617, 3618 SL-3641, 3642 SL-3641, 3642 SL-3641, 3642 MI-3886, 3887 VE-3949, 3950 VE-3949, 3950 VE-3949, 3950 BS-4016, 4017 BS-4016, 4017 BS-4016, 4017 MI-3992, 3993 LW-4175, 4176 W-4130, 4131 AV-4330, 4331 SWU-4489, 4490 AP-4909, 4910 AP-4952, 4953 AP-4930, 4931 E-4399, 4400 E-4399, 4400 G-4420, 4421 G-4420, 4421 G-4420, 4421 5/9/2006 5/9/2006 5/9/2006 5/10/2006 5/19/2006 5/24/2006 5/24/2006 5/24/2006 5/24/2006 5/25/2006 5/30/2006 6/1/2006 6/1/2006 6/1/2006 6/12/2006 6/13/2006 6/13/2006 6/13/2006 6/13/2006 6/13/2006 6/13/2006 6/14/2006 6/16/2006 6/21/2006 6/26/2006 6/27/2006 6/29/2006 6/29/2006 7/3/2006 7/5/2006 7/5/2006 7/5/2006 7/5/2006 7/5/2006 K-40 Gr. Alpha Gr. Beta K-40 H-3 Gr. Beta K-40 Gr. Beta K-40 Gr. Beta K-40 Be-7 Gr. Beta K-40 K-40 Gr. Alpha Gr. Beta K-40 Co-60 Cs-1 37 K-40 K-40 H-3 H-3 K-40 Gr. Beta Be-7 Be-7 Be-7 Gr. Beta K-40 Be-7 Gr. Beta K-40 Gr. Alpha Gr. Alpha Gr. Alpha K-40 Sr-90 K-40 Gr. Beta 1032.30 +/- 91.12 4.85 +/- 1.68 8.94 +/- 1.46 1412.40 +/- 119.10 8175.00 +/- 252.00 8.89 +/- 0.18 5.60 +/- 0.71 19.57 +/- 1.99 12.55 +/- 0.89 9.85 +/- 0.79 2.42 +/- 0.38 1.41 +/- 0.19 5.03 +/- 0.18 2.21 +/- 0.26 1424.20 +/- 118.20 0.13 +/- 0.06 4.53 +/- 0.19 6.02 +/- 0.66 0.18 +/- 0.03 1.97 +/- 0.09 11.03 +/- 0.76 1358.50 +/- 166.40 482.11 +/- 90.25 401.50 +/- 87.85 1717.10 +/- 244.30 1.70 +/- 0.38 0.11 +/- 0.01 0.08 +/- 0.02 0.08 +/- 0.02 1.85 +/- 0.05 1.25 +/- 0.19 0.82 +/- 0.20 13.20 +/- 0.40 9.96 +/- 0.44 3.24 +/- 1.35 3.70 +/- 1.12 6.87 +/- 1.26 1403.50 +/- 118.80 0.59 +/- 0.34 1286.60 +/- 92.62 1.75 +/- 0.60 1103.60 +/- 120.50 1067.95 +/- 75.54 4.12 9.14 1427.90 8268.00 9.03 6.30 18.98 11.49 8.96 2.53 1.31 5.30 2.14 1318.80 0.16 4.47 5.33

+/- 1.62

+/- 1.36

+/- 127.70

+/- 253.00

+/-0.19

+/- 0.78

+/- 1.91

+/- 0.59

+/- 0.74

+/- 0.37

+/- 0.27

+/-0.19

+/- 0.37

+/- 110.50

+/- 0.07

+/-0.18

+/- 0.66 4.48 9.04 1420.15 8221.50 8.96 5.95 19.27 12.02 9.41 2.47 1.36 5.17 2.18 1371.50 0.15 4.50 5.67 0.16 1.99

+/- 1.17

+/- 1.00

+/- 87.31

+/- 178.54

+/- 0.13

+/- 0.53

+/- 1.38

+/- 0.53

+/- 0.54

+/- 0.27

+/-0.17

+/-0.13

+/- 0.23

+/- 80.90

+/- 0.05

+/-0.13

+/- 0.47

+/- 0.02

+/- 0.06 0.15 +/- 0.03 2.01 +/- 0.09 10.45 +/- 0.78 1395.80 +/- 122.70 397.50 +/- 86.88 236.28 +/- 80.89 1893.10 +/- 223.30 1.93 +/- 0.38 0.11 +/- 0.02 0.10 +/- 0.02 0.07 +/- 0.01 1.85 +/- 0.05 1.24 +/- 0.18 0.61 +/- 0.14 14.00 +/- 0.40 10.06 +/- 0.82 2.49 +/- 1.33 3.09 +/- 1.16 4.77 +/- 1.09 1330.40 +/- 116.50 0.70 +/- 0.35 1358.60 +/- 158.40 2.51 +/- 0.59 10.74 +/- 0.54 1377.15 +/- 103.37 439.81 +/- 62.63 318.89 +/- 59.71 1805.10 +/- 165.49 1.82 +/- 0.27 0.11 +/- 0.01 0.09 +/- 0.01 0.08 +/- 0.01 1.85 +/- 0.04 1.25 +/- 0.13 0.72 +/- 0.12 13.60 +/- 0.28 10.01 +/- 0.47 2.87 +/- 0.95 3.40 +/- 0.81 5.82 +/- 0.83 1366.95 +/- 83.20 0.65 +/- 0.24 1322.60 +/- 91.75 2.13 +/- 0.42 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass DW-60432, 60433 7/6/2006 DW-60514, 60515 7/10/2006 DW-60449, 60450 7/11/2006 MI-4599, 4600 7/12/2006 MI-4599, 4600 7/12/2006 MI-4667, 4668 7/12/2006 LW-4823, 4824 7/14/2006 A5-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance DW-60502, 60503 7/19/2006 DW-60526, 60527 7/21/2006 DW-60539, 60540 7/21/2006 MI-5125, 5126 7/25/2006 DW-60609, 60610 7/26/2006 DW-60621, 60622 7/31/2006 SL-5265, 5266 SL-5265, 5266 SL-5265, 5266 SL-5265, 5266 VE-5286, 5287 VE-5286, 5287 VE-5286, 5287 SW-5383, 5384 SW-5383, 5384 SW-5971, 5972 VE-5404, 5405 VE-5404, 5405 DW-5480, 5481 8/1/2006 8/1/2006 8/1/2006 8/1/2006 8/11/2006 8/112006 8/1/2006 8/8/2006 8/8/2006 8/8/2006 8/10/2006 8/10/2006 8/11/2006 DW-60645, 60646 8/15/2006 W-5602, 5603 8/16/2006 DW-60634, 60635 8/18/2006 DW-60634, 60635 8/18/2006 MI-5793, 5794 8/22/2006 SWU-6150, 6151 8/29/2006 DW-60657, 60658 8/29/2006 CF-7450, 7451 9/5/2006 SL-6085, 6086 9/5/2006 SL-6085, 6086 9/5/2006 SL-6085, 6086 9/5/2006 DW-60695, 60696 9/11/2006 LW-6266, 6267 9/13/2006 MI-6424, 6425 9/19/2006 DW-60715, 60716 9/19/2006 SO-6597, 6598 9/22/2006 SO-6597, 6598 9/22/2006 SWU-6718, 6719 9/26/2006 SO-6668, 6669 9/27/2006 SO-6668, 6669 9/27/2006 Gr. Alpha Gr. Alpha Gr. Alpha K-40 Gr. Alpha Gr. Alpha Be-7 Sr-90 Gr. Beta K-40 Be-7 Gr. Beta K-40 Gr. Alpha Gr. Beta H-3 Be-7 K-40 H-3 Gr. Alpha H-3 Gr. Alpha Gr. Beta K-40 Gr. Beta Gr. Alpha Be-7 Co-60 Gr. Beta K-40 Gr. Alpha Gr. Beta Sr-90 Gr. Alpha Cs-137 K-40 Gr. Beta Cs-137 K-40 16.27 +/- 2.49 14.06 +/- 1.82 5.09 +/- 0.95 1480.60 +/- 118.30 1.00 +/- 1.10 3.70 +/- 1.00 1.10 +/- 0.46 0.10 +/- 0.03 4.41 +/- 0.41 1.19 +/- 0.52 1.21 +/- 0.30 9.67 +/- 0.35 6.25 +/- 0.81 3.24 +/- 1.35 4.86 +/- 0.86 119.90 +/- 78.14 0.77 +/- 0.24 4.71 +/- 0.63 169.08 +/- 85.52 10.41 +/- 1.78 2118.79 +/- 151.55 12.99 +/- 1.84 10.51 +/- 1.33 1264.00 +/- 115.00 1.84 +/- 0.28 2.33 +/- 0.80 0.78 +/- 0.45 0.22 +/- 0.03 5.47 +/- 0.69 1.91 +/- 0.28 3.93 +/- 1.17 3.09 +/- 0.48 0.78 +/- 0.38 1.30 +/- 1.00 0.18 +/- 0.04 10.25 +/- 0.66 3.45 +/- 1.21 0.13 +/- 0.04 13.04 +/- 0.90 21.41 +/- 3.21 15.57 +/- 1.77 6.23 +/- 1.05 1402.60 +/- 120.80 2.70 +/- 1.30 1.90 +/- 0.80 1.38 +/- 0.52 0.16 +/- 0.03 3.46 +/- 0.57 0.87 +/- 0.52 1.32 +/- 0.20 9.37 +/- 0.35 6.50 +/- 0.48 2.94 +/- 1.35 5.46 +/- 0.87 144.41 +/- 79.23 1.01 +/- 0.26 4.01 +/- 0.58 133.65 +/- 83.96 10.97 +/- 1.85 2181.82 +/- 153.09 9.67 +/- 1.61 8.61 +/- 1.18 1377.00 +/- 121.00 1.81 +/- 0.28 2.90 +/- 0.78 0.78 +/- 0.27 0.21 +/- 0.02 4.63 +/- 0.58 2.06 +/- 0.41 4.62 +/- 1.12 2.98 +/- 0.48 1.11 +/-0.37 2.23 +/- 1.01 0.18 +/- 0.04 10.11 +/- 0.64 2.78 +/- 1.19 0.13 +/- 0.02 12.41 +/- 0.54 18.84 +/- 2.03 14.82 +/- 1.27 5.66 +/- 0.71 1441.60 +/- 84.54 1.85 +/- 0.85 2.80 +/- 0.64 1.24 +/- 0.35 0.13 +/- 0.02 3.94 +/- 0.35 1.03 +/- 0.37 1.27 +/- 0.18 9.52 +/- 0.25 6.38 +/- 0.47 3.09 +/- 0.96 5.16 +/- 0.61 132.15 +/- 55.64 0.89 +/- 0.18 4.36 +/- 0.43 151.36 +/- 59.92 10.69 +/- 1.28 2150.30 +/- 107.71 11.33 +/- 1.22 9.56 +/- 0.89 1320.50 +/- 83.47 1.82 +/- 0.20 2.62 +/- 0.56 0.78 +/- 0.26 0.22 +/- 0.02 5.05 +/- 0.45 1.99 +/- 0.25 4.28 +/- 0.81 3.03 +/- 0.34 0.95 +/- 0.27 1.77 +/- 0.71 0.18 +/- 0.03 10.18 +/- 0.46 3.12 +/- 0.85 0.13 +/- 0.02 12.72 +/- 0.53 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass A5-3

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result Acceptance MI-6760, 6761 G-6797, 6798 G-6797, 6798 G-6797, 6798 b AP-7531, 7532 AP-7552, 7553 AP-7573, 7574 SO-7103, 7104 SO-7103, 7104 10/2/2006 1012/2006 10/2/2006 10/2/2006 10/3/2006 10/3/2006 10/3/2006 10/4/2006 10/4/2006 DW-60759, 60760 10/5/2006 MI-7037, 7038 VE-7058, 7059 VE-7058, 7059 VE-7058, 7059 SS-7079, 7080 SS-7079, 7080 SS-7079, 7080 MI-7208, 7209 CF-7450, 7451 LW-7945, 7946 F-7971, 7972 SWU-8194, 8195 BS-8017, 8018 BS-8017, 8018 LW-8215, 8216 F-8345, 8346 BS-8366, 8367 MI-8083, 8084 WW-8259, 8260 MI-8484, 8485 SO-8619, 8620 SO-8619, 8620 SO-8619, 8620 SO-8619, 8620 SWT-8641, 8642 SWT-9436, 9437 10/10/2006 10/10/2006 10/10/2006 10/10/2006 10/1012006 10/1012006 10/10/2006 10/11/2006 10/18/2006 10/26/2006 10/29/2006 10/31/2006 11/1/2006 11/1/2006 11/1/2006 11/2/2006 11/2/2006 11/6/2006 11/7/2006 11/22/2006 11/27/2006 11/27/2006 11/27/2006 11/27/2006 11/29/2006 12/26/2006 K-40 Be-7 Gr. Beta K-40 Be-7 Be-7 Be-7 Cs-137 K-40 Gr. Alpha K-40 Gr. Alpha Gr. Beta K-40 Cs-1 37 Gr. Beta K-40 K-40 K-40 Gr. Beta K-40 Gr. Beta Gr. Beta K-40 Gr. Beta K-40 K-40 K-40 H-3 K-40 Cs-137 Gr. Alpha Gr. Beta K-40 Gr. Beta Gr. Beta 1413.10 +/- 113.20 4.70 +/- 0.31 6.89 +/- 0.26 5.39 +/- 0.35 0.07 +/- 0.01 0.08 +/- 0.02 0.08 +/- 0.02 0.25 +/- 0.05 12.95 +/- 1.12 4.93 +/- 0.97 1326.10 +/- 115.20 0.18 +/- 0.11 9.21 +/- 0.34 10.90 +/- 0.65 0.04 +/- 0.01 12.23 +/- 2.46 7.23 +/- 0.36 1295.20 +/- 116.90 20.40 +/- 0.84 1.30 + 0.37 3.63 + 0.54 1.84 +/-0.28 10.54 +/- 1.72 10.00 +/- 0.53 2.23 +/- 0.61 2.84 +/- 0.42 13.69 +/- 0.66 1295.00 +/- 121.20 337.00 +/- 95.00 1405.80 +/- 87.06 0.74 +/- 0.08 16.54 +/- 5.65 24.99 +/- 3.88 12.21 +/- 1.11 2.83 +/- 0.47 2.39 +/-0.64 1187.30 +/- 155.20 4.56 +/- 0.41 7.04 +/- 0.24 4.36 +/- 0.47 0.08 +/- 0.01 0.08 +/- 0.01 0.08 +/- 0.01 0.27 +/- 0.06 12.22 +/- 1.07 5.04 +/- 1.03 1251.40 +/- 115.70

.0.32 +/- 0.14 8.83 +/- 0.36 10.42 +/- 0.80 0.04 +/- 0.02 11.76 +/- 2.23 7.37 +/- 0.40 1386.90 +/- 119.10 19.54 +/- 0.99 1.44 +/- 0.36 3.33 +/- 0.43 1.43 +/- 0.28 10.17 +/- 1.73 9.60 +/- 0.69 1.64 +/- 0.37 2.89 +/- 0.40 13.61 +/- 0.78 1374.80 +/- 162.80 295.00 +/- 93.00 1390.70 +/- 103.60 0.69 +/- 0.06 12.24 +/- 4.90 28.66 +/- 3.95 12.92 +/- 0.83 2.89 +/- 0.45 2.25 +/- 0.60 1300.20 +/- 96.05 4.63 +/- 0.26 6.97 +/- 0.18 4.88 +/- 0.29 0.08 +/- 0.01 0.08 +/- 0.01 0.08 +/- 0.01 0.26 +/- 0.04 12.58 +/- 0.77 4.99 +/- 0.71 1288.75 +/- 81.64 0.25 +/- 0.09 9.02 +/- 0.25 10.66 +/- 0.52 0.04 +/- 0.01 11.99 +/- 1.66 7.30 +/- 0.27 1341.05 +/- 83.44 19.97 +/- 0.65 1.37 +/- 0.26 3.48 +/- 0.34 1.64 +/- 0.20 10.36 +/- 1.22 9.80 +/- 0.44 1.93 +/- 0.35 2.86 +/- 0.29 13.65 +/- 0.51 1334.90 +/- 101.48 316.00 +/- 66.47 1398.25 +/- 67.66 0.71 +/- 0.05 14.39 +/- 3.74 26.82 +/- 2.77 12.57 +/- 0.69 2.86 +/- 0.33 2.32 +/- 0.44 Pass Pass Pass Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Note: Duplicate analyses are performed on every twentieth sample received in-house. Results are not listed for those analyses with activities that measure below the LLD.

a Results are reported in units of pCi/L, except for air filters (pCi/Filter), food products, vegetation, soil, sediment (pCi/g).

b 200 minute count time or longer, resulting in lower error.

A5-4

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

Concentration b Known Control Lab Codec Date Analysis Laboratory result Activity Limits d Acceptance STVE-1 082 STVE-1 082 STVE-1 082 STVE-1 082 STVE-1082 STVE-1 082 STVE-1082 STVE-1082 STVE-1 082 STVE-1 082 STVE-1 082 STVE-1082 STSO-1083 STSO-1 083 STSO-1 083 STSO-1083 0 STSO-1083 STSO-1083 STSO-1083 STSO-1083 STSO-1083 STSO-1 083 STSO-1083 STSO-1083 STSO-1083 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 Am-241 Co-57 Co-60 Cs-1 34 Cs-1 37 Mn-54 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 Am-241 Co-57 Co-60 Cs-1 34 Cs-1 37 K-40 Mn-54 Ni-63 Pu-238 Pu-239/40 U-233/4 U-238 Zn-65 0.16 +/- 0.06 10.40 +/- 0.20 5.00 + 0.20

< 0.20 3.40 +/- 0.20 6.90 +/- 0.20 0.08 +/- 0.03 0.17 +/- 0.03 1.40 +/- 0.20 0.24 +/- 0.05 0.19 +/- 0.04 11.10 +/-0.50 54.60 + 5.50 762.90 +/- 12.70 504.90 +/- 3.10

< 1.70 406.50 + 3.70 719.20 +/- 18.40 415.60 +/- 4.80 261.40 +/- 14.70 14.60 +/- 2.90 14.60 +/- 2.40 13.50 +/- 1.70 15.40 +/- 1.80 783.40 +/- 7.00 0.16 8.58 4.52 0.00 3.07 6.25 0.14 0.16 1.56 0.21 0.22 9.80 0.11 -0.20 6.00- 11.15 3.16 - 5.88 2.15 -4.00 4.37 - 8.12 0.10 -0.18 0.11 -0.21 1.09 -2.03 0.15 -0.27 0.15 -0.28 6.86 - 12.74 57.08 656.29 447.10 0.00 339.69 604.00 346.77 323.51 61.15 45.85 37.00 38.85 657.36 39.96 - 74.20 459.40 - 853.18 312.97 - 581.23 237.78 - 441.60 422.80 - 785.20 242.74 - 450.80 226.46 - 420.56 42.81 - 79.50 32.09 - 59.61 25.90 - 48.10 27.20 - 50.50 460.15 - 854.57 Pass Pass Pass Pass Pass Pass

'Fail Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Fail Fail Fail Fail Pass Pass Pass Pass Pass Pass Pass Pass Fail Pass Pass Pass Pass Pass STAP-1084 01/01/06 Gr. Alpha STAP-1084 01/01/06 Gr. Beta STAP-1 085 STAP-1 085 STAP-1 085 STAP-1085 STAP-1 085 STAP-1085' STAP-1085 STAP-1 085 STAP-1 085 STAP-1085 STAP-1 085 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 Am-241 Co-57 Co-60 Cs-134 Cs-1 37 Pu-238 Pu-239/40 Sr-90 U-233/4 U-238 Zn-65 0.26 +/- 0.02 0.51 +/- 0.03 0.12 +/- 0.02 4.32 +/- 0.10 2.24 +/- 0.16 2.96 +/- 0.19 2.64 +/- 0.20 0.03 +/- 0.01

< 0.01 0.77 +/- 0.21 0.03 +/- 0.01 0.02 +/- 0.01 3.94 +/- 0.44 0.36 0.48 0.09 4.10 2.19 2.93 2.53 0.07 0.00 0.79 0.02 0.02 3.42 0.00 - 0.72 0.24 - 0.72 0.07 -0.12 2.87 - 5.32 1.53 -2.84 2.05 -3.81 1.77 -3.29 0.05 - 0.09 0.55 -1.03 0.01 - 0.03 0.01 - 0.03 2.40 - 4.45 A6-1

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

Concentration b Known Control Lab Codec Date Analysis Laboratory result Activity Limits d Acceptance STW-1 086 STW-1086 STW-1086 STW-1086 STW-1086 STW-1086 STW-1086 STW-1086 STW-1086 STW-1086 STW-1086 e STW-1086 STW-1086 STW-1 086 STW-1086 STW-1086 STW-1087 STW-1087 STVE-1 098 STVE-1 098 STVE-1098 STVE-1098 STVE-1098 STVE-1098 STSO-1 099 STSO-1099 STSO-1099 STSO-1 099 STSO-1 099 STSO-1 099 STSO-1 099 STSO-1099 STSO-1099 STSO-1 099 e STSO-1 099 STSO-1099 STSO-1 099 01/01/06 01/01/06 01101/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 01/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 07/01/06 Am-241 Co-57 Co-60 Cs-1 34 Cs-1 37 Fe-55 H-3 Mn-54 Ni-63 Pu-238 Pu-239/40 Sr-90 Tc-99 U-233/4 U-238 Zn-65 Gr. Alpha Gr. Beta 1.29 +/- 0.05 177.10 +/- 1.00 158.30 +/- 1.00 96.40 +/- 1.50

< 0.80 102.50 +/- 18.10 956.60 +/- 16.50 335.30 +/- 2.20 62.90 +/- 3.60 0.96 +/- 0.07

< 0.20 12.80 +/- 1.60 22.30 +/- 1.20 2.02 + 0.12 2.03 +/-0.12 249.50 +/- 3.40 0.59 +/- 0.10 1.69 +/- 0.07 1.30 166.12 153.50 95.10 0.00 129.60 952.01 315.00 60.34 0.91 0.00 13.16 23.38 2.09 2.17 228.16 0.58 1.13 0.91 -1.69 116.28 - 215.96 107.45 - 199.55 66.57 - 123.63 90.72 - 168.48 666.41 - 1238.00 220.50 - 409.50 42.24 - 78.44 0.70 - 1.30 9.21 -17.11 16.37 - 30.39 1.46 -2.72 1.52 -2.82 159.71 - 296.61 0.00 -1.16 0.56-1.70 Co-57 Co-60 Cs-I 34 Cs-1 37 Mn-54 Zn-65

<0.14 6.89 +/- 0.17 8.46 +/- 0.16 6.87 +/- 0.29 10.36 +/- 0.29 7.46 +/- 0.50 0.00 5.81 7.49 5.50 8.35 5.98 4.06 - 7.55 5.24 - 9.73 3.85 - 7.14 5.85 -10.86 4.19 -7.78 Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Pass Am-241 Co-57 Co-60 Cs-134 Cs-137 K-40 Mn-54 Ni-63 Pu-238 Pu-239/40 U-233/4 U-238 Zn-65 130.00 +/- 11.60 784.90 +/- 3.80 2.10 +/- 0.90 500.70 +/- 7.40 624.20 +/- 4.90 701.30 +/- 3.40 699.20 +/- 5.20 614.40 +/- 17.10 79.90 +/- 5.80

< 0.70 150.50 +/- 5.90 151.60 +/- 6.00 1021.90 +/- 9.20 105.47 676.33 1.98 452.13 525.73 604.00 594.25 672.30 82.00 0.00 152.44 158.73 903.61 73.83 - 137.11 473.43 - 879.23 0.00 - 5.00 316.49 - 587.77 368.01 - 683.45 423.00 - 785.00 415.98 - 772.52 470.60 - 874.00 57.00 - 107.00 106.71 - 198.17 111.11 - 206.35 632.53 - 1175.00 STAP-1 100 07/01/06 Am-241 STAP-1 100 07/01/06 Co-57 STAP-1 100 07/01/06 Co-60 STAP-1100 07/01/06 Cs-134 0.16 +/- 0.03 2.17 +/- 0.06 1.38 +/- 0.07 2.52 +/- 0.13 0.14 2.58 1.58 3.15 0.10 -0.19 1.81 -3.36 1.10 -2.05 2.20 -4.09 A6-2

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

Concentration b Known Control Lab Codec Date Analysis Laboratory result Activity Limits d Acceptance STAP-1100 07/01/06 Cs-137 1.64 +/- 0.08 1.81 1.26 -2.35 Pass STAP-1100 07/01/06 Mn-54 1.76 +/- 0.18 1.92 1.34.2.50 Pass STAP-1100 07/01/06 Pu-238 0.09 +/- 0.02 0.12 0.08 -0.15 Pass STAP-1100 07/01/06 Sr-90 0.66 +/- 0.21 0.62 0.43 -0.81 Pass STAP-1100 07/01/06 U-233/4 0.15 +/- 0.02 0.13 0.09 -0.17 Pass STAP-1100 07/01/06 U-238 0.13 +/- 0.02 0.14 0.10 -0.18 Pass STAP-1100 e 07/01/06 Zn-65

<50.07 0.00 Pass STAP-1101 07/01/06 Gr. Alpha 0.08 +/- 0.03 0.29 0.00 - 0.58 Pass STAP-1101 07/01/06 Gr. Beta 0.41 +/- 0.05 0.36 0.18 -0.54 Pass STW-1102 07/01/06 Gr. Alpha 0.76 +/- 0.07 1.03 0.00-2.07 Pass STW-1102 07/01/06 Gr. Beta 1.23 +/- 0.06 1.03 0.52 - 1.54 Pass STW-1103 07/01/06 Am-241 1.86 +/- 0.09 2.31 1.62 - 3.00 Pass STW-1103 07/01/06 Co-57 224.10 +/- 1.20 213.08 149.16 - 277.00 Pass STW-1103 07/01/06 Co-60 49.40 +/- 0.50 47.50 33.20 - 61.80 Pass STW-1103 07/01/06 Cs-134 112.70 +/- 0.90 112.82 78.97 - 146.66 Pass STW-1103 07/01/06 Cs-137 206.60 +/- 1.40 196.14 137.30 - 254.98 Pass STW-1103 07/01/06 Fe-55 138.40 +/- 5.40 165.40 115.80 - 215.00 Pass STW-1103 07/01/06 H-3 446.50 +/- 11.80 428.85 300.20 - 557.50 Pass STW-1103 07/01/06 Mn-54

< 0.30 0.00 Pass STW-1103 07/01/06 Ni-63 116.70 +/- 3.60 118.62 83.03 - 154.21 Pass STW-1103 07/01/06 Pu-238 1.27 +/- 0.07 1.39 0.97 - 1.81 Pass STW-1103 07/01/06 Pu-239/40 1.67 +/- 0.08 1.94 1.36 -2.52 Pass STW-1103 07/01/06 Sr-90 16.40 +/- 1.90 15.69 10.98 - 20.40 Pass STW-1103 07/01/06 Tc-99 29.40 +/- 1.10 27.15 19.00 - 35.29 Pass STW-1103 07/01/06 U-233/4 1.97 +/- 0.08 2.15 1.50 -2.80 Pass STW-1103 07/01/06 U-238 1.97 +/- 0.08 2.22 1.55 -2.89 Pass STW-1103 07/01/06 Zn-65 192.50 +/- 2.40 176.37 123.46 - 229.28 Pass B Results obtained by Environmental, Inc., Midwest Laboratory as a participant in the Department of Energy's Mixed Analyte Performance Evaluation Program, Idaho Operations office, Idaho Falls, Idaho b Results are reported in units of Bq/kg (soil), Bq/L (water) or Bq/total sample (filters, vegetation).

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

d MAPEP results are presented as the known values and expected laboratory precision (1 sigma, 1 determination) and control limits as defined by the MAPEP.

e Included in the MAPEP as a false positive.

f Difficulties with the analyses for transuranics isotopes in solid samples (Filters, Soil and vegetation),

were attributed to incomplete dissolution of the samples. Soil samples were repeated, results of reanalyses:

Pu-238, 53.1

5.3 bq/kg. Pu-239/240, 42.4 +/- 4.7 bq/kg. U-233/4, 33.3 +/- 3.5 bq/kg. U-238, 35.5 +/- 3.6 bq/kg.

9 The July vegetation sample was provided in two separate geometries, (100 ml. and 500 ml.). Results reported here used the 500 ml. standard size geometry. Results for the 100 ml. geometry showed approximately a 15% higher bias.

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 2006 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Nonroutine (Unit of Analysis Performed Detection

- Mean (f)

Distance and

- Mean (f)

- Mean (f)

Reported Measurement)

(LLD)

- Range Direction

- Range

- Range Measurements **

Air Particulate (pCi/m 3)

Gross Beta (318) 0.01 0.029 (265/265)

(0.014-0.059) 0.080 (20/20)

(0.058-0.113)

TIE: 18 3.0 miles SSE TIE: 37 2.0 miles NNW 37 2.0 miles NNW 0.029 (53/53)

(0.015-0.059) 0.029 (53/53)

(0.019-0.057) 0.088 (4/4)

(0.064-0.112)

Station 48 0.028 (53/53)

(0.012-0.049) 0.080 (4/4)

(0.054-0.107)

Gamma (24)

Be-7 1-131 (318) 0 0

0 0.07

-(0/265)

N/A N/A

-(0/53)

External Radiation (mR/day)

Stations 39 & 48 0.192 (16/16)

(0.169-0.217)

TLD (376) 0.202 (360/360)

(0.118-0.257) 22 3.9 miles SSW 0.233 (8/8)

(0.215-0.243) 0 Surface Water (pCi/I)

Gamma (24)

Tritium (24)

-(0/12)

N/A N/A 3000 11286 (12/12)

(8624-14267)

SP 3.2 miles SSE 11286 (12/12)

(8624-14267)

JRR

-(0/12)

B-12

-(0/4)

-(0/4) 0 0

Ground Water (pCi/I) 1-131 (32) 1 Gamma (32)

Tritium (32)

-(0/28)

N/A N/A N/A N/A N/A N/A 0

0 0

2000 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 2006 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Nonroutine (Unit of Analysis Performed Detection

- Mean (f)

Distance and

- Mean (f)

- Mean (f)

Reported Measurement)

(LLD)

- Range Direction

- Range

- Range Measurements **

Drinking Water (pCi/I) 1-131 (29)

Gross Beta (29) 1

-(0-17)

N/A 1O-DW 26.1 miles SSE N/A BW-15

-(0/12) 4.0 (12/12)

(2.5-6.5) 4 3.9 (17/17)

(2.2-7.7) 3.9 (12/12)

(2.4-7.7) 0 0

0 0

Gamma (29)

Tritium (10)

Gamma (4)

-(0/17)

N/A N/A N/A N/A

-(0/12)

-(0/4) 2000

-(0/6)

Shoreline Sediment (pCi/kg dry)

Fish (pCi/kg wet)

JRR K-40 Gamma (16)

K-40 Tritium (16) 11822.0 (2/2)

(11521-12123) 3503 (10/10)

(2957.9-3939.0) 9471.9 (10/10)

(5733-14745)

DC 0.8 miles WNW 11822.0 (2/2)

(11521-12123) 3503 (10/10)

(2957.9-3939.0) 9471.9 (10/10)

(5733-14745) 9207.6 (2/2)

(7107-11308) 0 JRR CCL 0.6 miles CCL 0.6 miles 3433.7 (6/6)

(3210.4-3867.3) 0 0

-(0/6)

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 Generatinq Station Docket No.: 50-482 Location of Facility: Coffey County, Kansas Reporting Period: Annual 2006 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Nonroutine (Unit of Analysis Performed Detection

- Mean (f)

Distance and

- Mean (f)

- Mean (f)

Reported Measurement)

(LLD)

- Range Direction

- Range

- Range Measurements **

Food and Garden (pCi/kg wet)

Gamma (17)

Be-7 K-40 642.4 (7/9)

(247.9-1261.1) 4843.6 (9/9)

(3564.7-6090.1)

N-1 2.4 miles W N-1 2.4 miles W 708.1 (6/7)

(425.2-1261.1) 4848.2 (7/7)

(3990.5-6072.4)

D-1 & D-2 666.8 (7/8)

(249.6-1831.3) 4557.9 (8/8)

(3009.4-6906.4) 0 0

NR-U1 Crops (pCi/kg wet)

Bottom Sediment (pCi/kg dry)

Gamma (5)

K-40 13627.6 (3/3)

(2372-20398)

NR-D1 8.9 miles S 18112.0 (1/1) 8610.1 (2/2)

(2524.1-14696.0) 0 Gamma (6)

JRR K-40 Co-60 Cs-137 12233.3 (4/4)

(8695-14040) 123.2 (2/4)

(107.3-139.1) 170.1 (3/4)

(96.9-224.1)

DC 0.9 miles WNW DC 0.9 miles WNW DC 0.9 miles WNW 13682.0 (2/2)

(13324-14040) 123.2 (2/2)

(107.3-139.1) 206.7 (2/2)

(189.3-224.1) 19574.0 (2/2)

(17323-21825)

-(0/2) 0 0

0 152.7 (2/2)

(140.5-164.8)

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 2006 Medium of ODCM All Indicator Indicator Location with Control Locations Pathway Analysis and Lower Locations Highest Annual Mean Number of Sampled Total Number of Limit of Name Nonroutine (Unit of Analysis Performed Detection

- Mean (f)

Distance and

- Mean (f)

- Mean (f)

Reported Measurement)

(LLD)

- Range Direction

- Range

- Range Measurements **

Aquatic Vegetation (pCi/kg wet)

Gamma (3)

No Control Be-7 K-40 Terrestrial Vegetation (pCi/kg wet)

Gamma (2)

Be-7 K-40 377.1 (3/3)

(224.8-653.6) 2234.2 (3/3)

(1622.3-3363.2) 711.0 (2/2)

(357.1-1064.9) 6876.8 (2/2)

(6269.3-7484.2) 11840.5 (2/2)

(10501-13180)

EEA 3.0 miles NNW MUDS 1.5 miles WNW 653.6 (1/1) 0 0

No Control 2540.2 (2/2)

(1717.1-3363.2)

MUDS 1.5 miles WNW EEA 3.0 miles NNW 1064.9 (1/1) 7484.2 (1/1) 0 Soil (pCi/kg dry)

Deer (pCi/kg wet)

Gamma (2)

No Control K-40 EEA 3.0 miles NNW 13180 (1/1) 0 Gamma (1)

K-40 2860.5 (1/1)

No Control A.8 0.8 miles N 2860.5 (1/1) 0 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 Collection Start Date 28-DEC-05 28-DEC-05 05-JAN- 06 11-JAN- 06 18 -JAN- 06 25 -JAN- 06 25-JAN-06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01-MAR-06 08-MAR-06 14-MAR-06 23 -MAR- 06 29-MAR- 06 05 -APR- 06 12-APR-06 19-APR-06 27-APR-06 03 -MAY-06 10 -MAY- 06 17-MAY- 06 24 -MAY- 06 31-MAY- 06 07-JUN-06 14 -JUN- 06 14 -JUN-06 21-JUN-06 21-JUN- 06 28-JUN-06 05 -JUL- 06 12-JUL-06 12-JUL-06 19-JUL- 06 27-JUL-06 02-AUG- 06 09-AUG-06 16 -AUG- 06 24 -AUG- 06 Gross Beta Collection Volume Concentration End Date m3 (pCi/m 3 )

1-131 Concentration (pCi/m3 )

Duplicate Analysis Duplicate 05-JAN-06 05-JAN-06 11-JAN-06 18-JAN-06 25-JAN-06 01-FEB-06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01-MAR-06 08-MAR-06 14-MAR-06 23-MAR-06 29-MAR- 06 05-APR-06 12-APR-06 19-APR-06 27-APR-06 03 -MAY-06 10-MAY-06 17-MAY-06 24 -MAY-06 31-MAY-06 07-JUN-06 14 -JUN- 06 21 -JUN-06 21-JUN-06 28-JUN-06 28 -JUN-06 05-JUL-06 12-JUL-06 19-JUL-06 19-JUL-06 27-JUL-06 02 -AUG- 06 09-AUG-06 16-AUG-06 24-AUG-06 30 -AUG- 06 347 347 265 303 307 312 312 313 301 311 305 296 273 390 255 295 309 307 350 265 303 294 277 275 277 297 302 302 302 302 311 300 311 311 351 252 301 302 346 259 0.028+/-

0.030+/-

0.033+/-

0.027+/-

0.023+/-

0.018+/-

0.020+/-

0.024+/-

0.027+/-

0.031+/-

0.035+/-

0.034+/-

0.028+/-

0.017+/-

0.022+/-

0.018+/-

0.026+/-

0.027+/-

0.020+/-

0.019+/-

0.017+!-

0.015+/-

0.028+/-

0.024+/-

0.031+/-

0.029+/-

0. 026+/-

0.029+/-

0. 025+/-

0.020+/-

0.030+/-

0.029+/-

0.030+/-

0.024+/-

0.032+/-

0.020+/-

0.027+/-

0.023+/-

0.038+/-

0.031+/-

0.004 0.004 0.005 0.004 0.004 0.003 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004 0.003 0.004 0.004 0.003 0.004 0.003 0.003 0.004 0.004 0.004 0.004 0.004

0. 004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.008 0.022 0.013 0.011 0.013 0.010 0.015 0.012 0.011 0.016 0.018

0. 012 0.018 0.015 0.008 0.016 0.014 0.016 0.016 0.014 0.008 0.007 0.007 0.011 0.013 Duplicate 0.016 Duplicate Duplicate 0.015 0.009 0.018 0.015 0.010 0.009 0.005 0.011 0.014 Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

1

Air Particulate and Charcoal Filters Location:

002 Gross Beta Collection Collection Volume Concentration Start Date End Date m3 (pCi/rm3 )

1-131 Concentration (pCi/m 3 )

Duplicate Analysis 30-AUG-06 06-SEP-06 13-SEP-06 20-SEP-06 27-SEP-06 03-OCT-06 11-OCT-06 18-OCT-06 18-OCT-06 25-OCT-06 01 -NOV- 06 08-NOV-06 16-NOV-06 22 -NOV- 06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 06-SEP-06 13-SEP-06 20-SEP-06 27-SEP-06 03-OCT-06 11-OCT-06 18-OCT-06 25-OCT-06 25-OCT-06 01-NOV-06 08-NOV-06 16 -NOV- 06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 04 - JAN- 07 302 297 306 293 261 333 311 283 283 311 294 347 259 403 182 352 318 319 353 0.029+/-

0.038+/-

0.024+/-

0.026+/-

0.028+/-

0.035+/-

0.025+/-

0.030+/-

0.027+/-

0.024+/-

0.038+/-

0.048+/-

0.044 +/-

0.040+/-

0.053+/-

0.038+/-

0.036+/-

0.023+/-

0.022+/-

0.004 0.004

0. 004 0.004 0.005 0.004 0.004 0.004

0. 004 0.004 0.005 0.004 0.005

0. 004 0.007

0. 004 0.004 0.004 0.003 0.021 0.011 0.011 0.016 0.014 0.013 0.007 0.008 0.018 0.020 0.016 0.029 0.014 0.024 0.012 0.014 0.017 0.016 Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

2

Air Particulate and Charcoal Filters Location:

018 Collection Start Date 28-DEC-05 05-JAN-06 11-JAN- 06 18-JAN-06 25-JAN-06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01-MAR-06 08-MAR- 06 14 -MAR- 06 23 -MAR- 06 29-MAR-06 05-APR-06 12-APR-06 19-APR-06 27-APR-06 27-APR-06 03 -MAY- 06 10-MAY-06 17-MAY-06 24 -MAY- 06 31-MAY-06 07-JUN-06 14 -JUN- 06 21-JUN-06 28-JUN-06 05-JUL-06 12-JUL-06 19-JUL-06 27-JUL-06 02 -AUG- 06 09-AUG-06 16-AUG-06 24-AUG-06 30 -AUG- 06 06-SEP-06 13-SEP-06 20-SEP-06 Gross Beta Collection Volume Concentration End Date

ý m 3 (pCi/m 3) 1-131 Concentration (pCi/m 3 )

Duplicate Analysis 05-JAN-06 11-JAN-06 18-JAN-06 25-JAN-06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01-MAR- 06 08-MAR- 06 14 -MAR- 06 23-MAR- 06 29-MAR- 06 05-APR-06 12-APR-06 19-APR-06 27-APR-06 03-MAY-06 03 -MAY- 06 10-MAY-06 17-MAY- 06 24-MAY-06 31-MAY- 06 07-JUN- 06 14-JUN- 06 21-JUN- 06 28-JUN-06 05-JUL-06 12 -JUL- 06 19-JUL- 06 27-JUL-06 02-AUG-06 09-AUG-06 16-AUG- 06 24-AUG-06 30-AUG-06 06-SEP-06 13-SEP-06 20-SEP-06 27-SEP-06 365 265 300 300 300 307 294 305 298 294 271 383 248 286 304 291 348 256 256 301 306 287 295 302 305 298 297 313 287 303 349 244 304 300 345 263 318 302 311 286 0.028+/-

0.036+/-

0.027+/-

0.024+/-

0.020+/-

0.021+/-

0.027+/-

0.034+/-

0.037+/-

0.038+/-

0.033+/-

0.020+/-

0.022+/-

0.023+/-

0.029+/-

0.027+/-

0.025+/-

0.019+/-

0.022+/-

0.016+/-

0.015+/-

0.034+/-

0.021+/-

0.032+/-

0.025+/-

0.026+/-

0.022+/-

0.026+/-

0.029+/-

0.021+/-

0.025+/-

0.027+/-

0.036+/-

0.027+/-

0.032+/-

0.035+/-

0.023+/-

0.004 0.005 0.004 0.004

0. 004 0.004 0.004 0.004 0.004 0.004 0.004

0. 003 0.004 0.004 0.004 0.004 0.003 0.004 0 004 0.003 0.003 0.004 0.004

0. 004 0.004 0.004

0. 004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004

0. 004

0. 004 0.008 0.022 0.014 0.011 0.013 0.010 0.015 0.012 0.011 0.016 0.019 0.012 0.019 0.015 0.008 0.017 0.014 0.017 Duplicate 0.017 0.013 0.008 0.007 0.006 0.011 0.013 0.017 0.015 0.010 0.018 0.015 0.010 0.009 0.005 0.011 0.014 0.020 0.011 0.011 0.017 0.031+/-

0.004 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

3

Air Particulate and Charcoal Filters Location:

018 Collection Start Date 27-SEP-06 03-OCT-06 11-OCT-06 18-OCT-06 25-OCT-06 01-NOV-06 08-NOV-06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 Gross Beta Collection Volume Concentration End Date M3 (pCilm3 )

1-131 Concentration (pCilm3 )

Duplicate Analysis 03-OCT-06 11-OCT-06 18-OCT-06 25-OCT-06 01-NOV-06 08 -NOV- 06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 04 -JAN - 07 264 336 309 290 314 299 340 260 390 174 342 303 314 338 0.032+/-

0.005 0.032+/-

0.026+/-

0.028+/-

0.023+/-

0.039+/-

0.044+/-

0.042+/-

0.041+/-

0.059+/-

0.040+/-

0.035+/-

0.027+/-

0. 004 0.004 0.004 0.004 0.005 0.004 0.005 0.004 0.007

0. 004 0.004 0.004 0.014 0.013 0.007 0.008 0.018 0.020 0.016 0.028 0.015 0.025 0.012 0.015 0.017 0.017 0.023+/-

0.003 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 4

Air Particulate and Charcoal Filters Location:

032 Collection Start Date 28-DEC-05 05 -JAN - 06 11-JAN-06 18-JAN- 06 25 -JAN -06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01-MAR-06 08-MAR-06 14-MAR-06 23-MAR-06 29-MAR-06 05-APR-06 12-APR-06 19-APR-06 27-APR-06 03-MAY-06 10-MAY-06 17-MAY-06 24 -MAY-06 31-MAY-06 07-JUN-06 14-JUN -06 21-JUN-06 28-JUN-06 05-JUL-06 12-JUL-06 19-JUL - 06 27-JUL-06 02 -AUG- 06 09-AUG-06 16-AUG-06 24-AUG-06 30-AUG-06 06-SEP-06 13-SEP-06 20-SEP-06 27-SEP-06 Gross Beta Collection Volume Concentration End Date M3 (pCilm 3 )

1-131 Concentration

(pCiIm 3 )

Duplicate Analysis 05-JAN - 06 11-JAN-06 18-JAN-06 25-JAN-06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01-MAR- 06 08-MAR-06 14 -MAR- 06 23-MAR- 06 29-MAR-06 05-APR-06 12-APR-06 19-APR-06 27-APR-06 03 -MAY- 06 10-MAY-06 17-MAY- 06 24 -MAY-06 31-MAY-06 07-JUN-06 14 -JUN- 06 21-JUN- 06 28-JUN- 06 05-JUL-06 12-JUL-06 19-JUL-06 27-JUL-06 02-AUG-06 09-AUG-06 16-AUG-06 24 -AUG- 06 30-AUG-06 06-SEP-06 13-SEP-06 20-SEP-06 27-SEP-06 03-OCT-06 348 261 299 302 299 310 292 304 306 297 269 390 260 281 292 301 351 252 301 306 282 280 301 284 296 297 311 290 303 343 247 301 302 340 254 302 297 314 261 243 0.028+/-

0.031+/-

0.027+/-

0.021+/-

0.024+/-

0.023+/-

0.035+/-

0.033+/-

0.035+/-

0.026+/-

0.019+/-

0.020+/-

0.023+/-

0.027+/-

0.025+/-

0.021+/-

0.024+/-

0.016+/-

0.014+/-

0.031+/-

0.024+/-

0.032+/-

0.030+/-

0.029+/-

0.022+/-

0.031+/-

0.025+/-

0.027+/-

0.032+/-

0.021+/-

0.027+/-

0.024+/-

0.038+/-

0.028+/-

0.038+/-

0.027+/-

0.037+/-

0.030+/-

0.004 o.06s 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.003 0.004 0.004 0.004 0.004 0.003 0.004 0.003 0.003

0. 004 0.004 0.004 0.004

0. 004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004

0. 004 0.004 0.004 0.005 0.005 0.008 0.022 0.014 0.011 0.013 0.010 0.016 0.012 0.011 0.016 0.019 0.012 0.018 0.015 0.009 0.016 0.014 0.017 0.017 0.013 0.008 0.007 0.006 0.011 0.013 0.017 0.015 0.009 0.018 0.015 0.010 0.009 0.005 0.011 0.014 0.021 0.011 0.011 0.018 0.015 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

5

Air Particulate and Charcoal Filters Location:

032 Gross Beta Collection Collection Volume Concentration Start Date End-Date m3 (pCilm 3 )

1-131 Concentration (pCilm3 )

Duplicate Analysis 03-OCT-06 11-OCT-06 18-OCT-06 25-OCT-06 01-NOV-06 08-NOV-06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 11-OCT-06 18-OCT-06 25-OCT-06 01-NOV-06 08-NOV-06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 04-JAN - 07 316 289 265 279 319 345 259 397 181 347 308 330 358 0.030+/-

0.024+/-

0.029+/-

0.025+/-

0.034+/-

0.045+/-

0.042+/-

0.041+/-

0.052+/-

0.031+/-

0.030+/-

0.027+/-

0.022+/-

0.004 0.004 0.005 0.004 0.004 0.004 0.005 0.004 0.007 0.004 0.004 0.004 0.003 0.013 0.007 0.009 0.020 0.019 0.016 0.029 0.014 0.024 0.012 0.015 0.016 0.016 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

6

Air Particulate and Charcoal Filters Location:

037 Collection Start Date 28-DEC-05 05-JAN-06 11-JAN-06 18-JAN-06 25-JAN-06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01-MAR-06 08-MAR-06 14 -MAR- 06 23-MAR -06 29-MAR-06 05-APR-06 12-APR-06 19-APR-06 27-APR-06 03 -MAY- 06 10-MAY-06 17-MAY-06 24 -MAY-06 31-MAY-06 07-JUN- 06 14 -JUN- 06 21-JUN-06 28-JUN- 06 05-JUL-06 12-JUL- 06 19-JUL-06 27-JUL-06 02 -AUG- 06 09-AUG-06 16 -AUG- 06 24-AUG-06 30-AUG-06 06-SEP-06 13-SEP-06 20-SEP-06 27-SEP-06 Gross Beta Collection Volume Concentration End Date M3 (pCilm3 )

1-131 Concentration (pCilm3 )

Duplicate Analysis 05-JAN-06 11-JAN-06 18-JAN-06 25-JAN- 06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01 -MAR- 06 08-MAR-06 14 -MAR-06 23 -MAR- 06 29-MAR- 06 05-APR-06 12-APR-06 19-APR-06 27-APR-06 03 - MAY-06 10-MAY-06 17-MAY-06 24 -MAY- 06 31-MAY-06 07-JUN- 06 14-JUN-06 21-JUN- 06 28-JUN-06 05 -JUL- 06 12-JUL-06 19-JUL-06 27-JUL-06 02-AUG-06 09-AUG-06 16-AUG-06 24-AUG-06 30 -AUG- 06 06-SEP-06 13-SEP-06 20-SEP-06 27-SEP-06 03-OCT-06 342 261 303 298 302 308 292 304 306 291 269 371 233 270 294 291 328 266 301 307 285 290 287 288 307 312 322 299 309 360 260 301 291 346 259 302 302 313 276 252 0.027+/-

0.028+/-

0.027+/-

0.025+/-

0.021+/-

0.023+/-

0.026+/-

0.031+/-

0.039+/-

0.041+/-

0.026+/-

0.019+/-

0.021+/-

0.022+/-

0.033+/-

0.024+/-

0.023+/-

0.021+/-

0.019+/-

0.020+/-

0.029+/-

0.022+/-

0.028+/-

0.026+/-

0.023+/-

0.030+/-

0.029+/-

0.038+/-

0.020+/-

0.026+/-

0.027+/-

0.038+/-

0.027+/-

0.032+/-

0.042+/-

0.025+/-

0.028+/-

0.030+/-

0.004 0.004 0.004 0.004

0. 004 0.004 0.004 0.004 0.004 0.005 0.004 0.003 0.004

0. 004 0.004 0.004 0.003 0.004 0.003 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.004 0.004 0.005 0.009 0.022 0.013 0.011 0.013 0.010 0.016 0.012 0.011 0.016 0.019 0.013 0.020 0.016 0.009 0.017 0.015 0.016 0.017 0.013 0.008 0.007 0.007 0.011 0.013 0.016 0.015 0.009 0.018 0.014 0.009 0.009 0.005 0.011 0.014 0.021 0.011 0.011 0.017 0.014 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 7

Air Particulate and Charcoal Filters Location:

037 Gross Beta Collection Collection Volume Concentration Start Date End Date m3 (pCilm 3 )

1-131 Concentration (pCilm3 )

Duplicate Analysis 03-OCT-06 11-OCT-06 18-OCT-06 25-OCT-06 01-NOV-06 08-NOV-06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 11-OCT-06 18-OCT-06 25-OCT-06 01-NOV-06 08-NOV-06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 04-JAN-07 322 300 284 300 279 346 259 390 178 342 308 314 342 0.033+/-

0.023+/-

0.024+/-

0.023+/-

0.036+/-

0.047+/-

0.043+/-

0.038+/-

0.057+/-

0.038+/-

0.033+/-

0.027+/-

0.021+/-

0.004 0.004 0.004 0.004 0.005 0.004 0.005 0.004 0.007 0.004 0.004 0.004 0.003 0.013 0.007 0.008 0.018 0.021 0.016 0.029 0.015 0.024 0.012 0.015 0.017 0.017 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 8

Air Particulate and Charcoal Filters Location:

048 Collection Start Date Gross Beta Collection Volume Concentration End Date m3 (pCilm3 )

1-131 Concentration (pCi/m 3 )

Duplicate Analysis 28-DEC-05 05-JAN-06 336 0.030+/-

0.004 05-JAN-06 11-JAN-06 261 0.032+/-

0.005 11-JAN-06 18-JAN-06 305 0.024+/-

0.004 18-JAN-06 25-JAN-06 307 0.025+/-

0.004 25-JAN-06 01-FEB-06 301 0.020+/-

0.004 01-FEB-06 08-FEB-06 314 0.024+/-

0.004 08-FEB-06 15-FEB-06 290 0.027+/-

0.004 15-FEB-06 22-FEB-06 305 0.030+/-

0.004 22-FEB-06 01-MAR-06 306 0.034+/-

0.004 01-MAR-06 08-MAR-06 296 0.033+/-

0.004 08-MAR-06 14-MAR-06 269 0.026+/-

0.004 08-MAR-06 14-MAR-06 269 0.025+/-

0.004 14-MAR-06 23-MAR-06 385 0.021+/-

0.003 23-MAR-06 29-MAR-06 258 0.020+/-

0.004 29-MAR-06 05-APR-06 303 0.022+/-

0.004 05-APR-06 12-APR-06 295 0.030+/-

0.004 12-APR-06 19-APR-06 296 0.028+/-

0.004 19-APR-06 27-APR-06 114 0.012+/-

0.006 27-APR-06 03-MAY-06 261 0.018+/-

0.004 03-MAY- 06 10-MAY-06 305 0.017+/-

0.003 10-MAY-06 17-MAY- 06 302 0.016+/-

0.003 17-MAY-06 24-MAY-06 286 0.032+/-

0.004 24-MAY-06 31-MAY- 06 280 0.024+/-

0.004 3 1-MAY- 06 07-JUN-06 296 0.029+/-

0.004 07-JUN-06 14-JUN- 06 284 0.031+!-

0.004 14-JUN-06 21-JUN-06 301 0.026+/-

0.004 21-JUN-06 28-JUN-06 307 0.027+/-

0.004 28-JUN-06 05-JUL-06 327 0.027+/-

0.004 05-JUL-06 12-JUL-06 290 0.025+/-

0.004 12-JUL-06 19-JUL-06 291 0.031+/-

0.004 19-JUL-06 27-JUL-06 349 0.029+/-

0.004 27-JUL-06 02-AUG-06 249 0.024+/-

0.004 02-AUG-06 09-AUG-06 297 0.028+/-

0.004 09-AUG-06 16-AUG-06 304 0.028+/-

0.004 16-AUG-06 24-AUG-06 337 0.038+/-

0.004 24-AUG-06 30-AUG-06 250 0.025+/-

0.004 30-AUG-06 06-SEP-06 302 0.035+/-

0.004 06-SEP-06 13-SEP-06 298 0.039+/-

0.004 13-SEP-06 20-SEP-06 313 0.027+/-

0.004 20-SEP-06 27-SEP-06 295 0.029+/-

0.004 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station 0.009 0.022 0.013 0.011 0.013 0.010 0.016 0.012 0.011 0.016 0.019 0.012 0.018 0.014 0.009 0.016 0.043 0.016 0.016 0.014 0.008 0.007 0.006 0.011 0.013 0.016 0.015 0.009 0.019 0.015 0.010 0.009 0.005 0.011 0.014 0.021 0.011 0.011 0.016 Duplicate Page C

9

Air Particulate and Charcoal Filters Location:

048 Collection Start Date 20-SEP-06 27-SEP-06 03-OCT-06 11-OCT-06 18-OCT-06 25-OCT-06 01 -NOV- 06 08-NOV-06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 Gross Beta Collection Volume Concentration End Date m3 (pCiIm 3 )

1-131 Concentration (pCilm 3 )

Duplicate Analysis Duplicate 27-SEP-06 03-OCT-06 11-OCT-06 18-OCT-06 25-OCT-06 01-NOV-06 08-NOV-06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 04 -JAN- 07 295 265 339 302 278 300 300 341 260 390 179 339 303 314 338 0.029+/-

0.028+/-

0.031+/-

0.025+/-

0.029+/-

0.027+/-

0.032+/-

0.044+/-

0.037+/-

0.049+/-

0.034+/-

0.033+/-

0.026+/-

0.019+/-

0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.004 0.007 0.004 0.004 0.004 0.003

'C

'C 0.014 0.012 0.007 0.008 0.018 0.020 0.016 0.028 0.015 0.024 0.012 0.015 0.017 0.017 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

10

Air Particulate and Charcoal Filters Location:

049 Collection Start Date 28-DEC-05 05-JAN-06 11-JAN- 06 18 -JAN-06 25-JAN-06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01-MAR-06 08-MAR-06 14-MAR-06 23 -MAR- 06 29-MAR- 06 05-APR-06 12-APR-06 19-APR-06 27-APR-06 03 -MAY- 06 10-MAY-06 17-MAY-06 24 -MAY- 06 31-MAY-06 07-JUN-06 14 -JUN-06 21-JUN- 06 28-JUN-06 05-JUL-06 12-JUL-06 19-JUL-06 27-JUL-06 02-AUG-06 09-AUG- 06 16-AUG-06 24-AUG-06 30-AUG-06 30-AUG-06 06-SEP-06 13-SEP-06 20-SEP-06 Gross Beta Collection Volume Concentration End Date m3 (pCilm3 )

1-131 Concentration (pCilm 3 )

Duplicate Analysis 05-JAN-06 11 -JAN- 06 18-JAN-06 25-JAN- 06 01-FEB-06 08-FEB-06 15-FEB-06 22-FEB-06 01-MAR- 06 08-MAR- 06 14-MAR-06 23-MAR-06 29-MAR- 06 05-APR-06 12-APR-06 19-APR-06 27-APR-06 03 -MAY- 06 10-MAY-06 17-MAY- 06 24 -MAY- 06 31-MAY-06 07-JUN-06 14-JUN-06 21-JUN-06 28-JUN-06 05-JUL-06 12-JUL-06 19-JUL-06 27-JUL-06 02-AUG-06 09-AUG-06 16-AUG-06 24-AUG-06 30-AUG-06 06-SEP-06 06-SEP-06 13-SEP-06 20-SEP-06 27-SEP-06 335 131 299 292 298 298 281 289 287 275 260 364 238 288 280 286 316 270 308 337 284 290 298 286 297 292 300 290 294 324 239 301 302 346 259 301 301 298 293 291 0.026+/-

0.023+/-

0.024+/-

0.020+/-

0.023+/-

0.026+/-

0.031+/-

0.043+/-

0.036+/-

0.024+/-

0.022+/-

0.015+/-

0.020+/-

0.028+/-

0.026+/-

0.025+/-

0.020+/-

0.024+/-

0.018+/-

0.030+/-

0.021+/-

0.029+/-

0.033+/-

0.023+/-

0.025+/-

0.034+/-

0.025+/-

0.034+/-

0.033+/-

0.022+/-

0.029+/-

0.026+/-

0.040+/-

0.028+/-

0.034+/-

0.036+/-

0.042+/-

0.027+/-

0.030+/-

0. 004 0.007 0.004 0.004 0.004 0.004 0.004 0.004 0.005 0.005 0.004 0.003 0.004 0.004 0.004 0.004 0.003 0.004

0. 004 0.003 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.004 0.005

0. 004

0. 004 0.009 0.044 0.014 0.011 0.013 0.011 0.016 0.013 0.011 0.017 0.019 0.013 0.020 0.015 0.009 0.017 0.015 0.016 0.016 0.012 0.008 0.007 0.006 0.011 0.013 0.017 0.016 0.009 0.019 0.016 0.010 0.009 0.005 0.011 0.014 0.021 0.011 0.012 0.017 Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

11

Air Particulate and Charcoal Filters Location:

049 Gross Beta Collection Collection Volume Concentration Start Date End Date m 3 (pCilm3 )

1-131 Concentration (pCilm3 )

Duplicate Analysis 27-SEP-06 03-OCT-06 11-OCT-06 18-OCT-06 25-OCT-06 01-NOV-06 08-NOV-06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 27-DEC-06 03-OCT-06 11-OCT-06 18-OCT-06 25-OCT-06 01-NOV-06 08-NOV-06 16-NOV-06 22-NOV-06 01-DEC-06 05-DEC-06 13-DEC-06 20-DEC-06 27-DEC-06 04-JAN- 07 04-JAN-07 261 333 311 287 292 279 347 264 397 181 340 303 314 342 342 0.033+/-

0.034+/-

0.026+/-

0.016+/-

0.022+/-

0.034+/-

0.042+/-

0.041+/-

0.037+/-

0.057+/-

0.038+/-

0.034+/-

0.025+/-

0.022+/-

0-024+/-

0.005 0.004 0.004 0.004 0.004 0.005 0.004 0.005 0.004 0.007 0.004 0.004 0.004 0.003 0.003

'C

'C 0.014 0.013 0.007 0.008 0.019 0.021 0.016 0.028 0.014 0.024 0.012 0.015 0.017 0.017 Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

12

Quarterly Air Particulate - Gamma Location: 002 29-MAR-06 Nuclide BE-7 CO-58 CO-60 CS-134 CS-137 FE-59 MN-54 ZN-65 ZR -NB -95 28-JUN-06 Nuclide BE-7 CO-58 CO-60 CS-134 CS-137 FE-59 MN-54 ZN-65 ZR-NB-95 03-OCT-06 Nuclide BE-7 CO-58 CO-60 CS-134 CS-137 FE-59 MN-54 ZN-65 ZR-NB-95 27-DEC-06 Nuclide BE-7 CO-58 CO-60 CS-134 CS-137 FE-59 Concentration (pCi/m 3 )

.058+/-

0.010 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Concentration (pCi/m3)

.089+/-

0.013 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Concentration (pCilm3 )

.082+/-

0.013 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Concentration (pCi/m3)

.09+/-

0.018 0.001 0.001 0.001 0.001 0.001

Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

13

Quarterly Air Particulate - Gamma Location: 002 27-DEC-06 Nuclide MN-54 ZN-65 ZR-NB-95 Concentration (pCi/m3 )

0.001 0.001 0.001

Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 14

Quarterly Air Particulate - Gamma Location: 018 29-MAR-06 Nuclide Concentration (pCi/m3 )

BE-7

.071+/-

0.013 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.002 MN-54 0.001 ZN-65 0.001 ZR-NB-95 0.001 28-JUN-06 Nuclide Concentration (pCilm3 )

BE-7

.102+/-

0.015 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001 MN-54 0.001 ZN-65 0.001 ZR-NB-95 0.001 03-OCT-06 Nuclide Concentration (pCilm3 )

BE-7

.076+/-

0.011 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001 MN-54 0.001 ZN-65 0.001 ZR-NB-95 0.001 27-DEC-06 Nuclide Concentration (pCi/r 3 )

BE-7

.071+/-

0.012 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001

Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

15

Quarterly Air Particulate - Gamma Location: 018 27-DEC-06 Nuclide MN-54 ZN-65 ZR-NBE-95 Concentration (pCi/m3) 0.001 0.001 0.001

Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

16

Quarterly Air Particulate - Gamma Location: 032 29-MAR-06 Nuclide Concentration (pCi/rm3 )

BE-7

.058+/-

0.010 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001 MN-54 0.001 ZN-65 0.001 ZR-NB-95 0.001 28-JUN-06 Nuclide Concentration (pCi/rn3 )

BE-7

.1+/-

0.012 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001 MN-54 0.001 ZN-65 0.001 ZR-NB-95 0.001 03-OCT-06 Nuclide Concentration (pCilm3 )

BE-7

.076+/-

0.014 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001 MN-54 0.001 ZN-65 0.001 ZR-NB-95 0.001 27-DEC-06 Nuclide Concentration (pCi/m3 )

BE-7

.061+1-0.013 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001

Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

17

Quarterly Air Particulate - Gamma Location: 032 27-DEC-06 Nuclide MN-54 ZN-65 ZR-NB-95 Concentration (pCi/m3 )

0.001 0.001 0.001

Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

- 18

Quarterly Air Particulate - Gamma Location: 037 29-MAR-06 Nuclide BE-7 CO-58 CO-60 CS-134 CS-137 FE-59 MN-54 ZN-65 ZR-NB-95 28-JUN-06 Nuclide BE-7 CO-58 CO-60 CS-134 CS-137 FE-S9 MN-54 ZN-65 ZR-NB-95 03-OCT-06 Nuclide BE-7 CO-S8 CO-60 CS-134 CS-137 FE-59 MN-54 ZN-65 ZR-NB -95 27-DEC-06 Nuclide BE-7 CO-58 CO-60 CS-134 CS-137 FE-59 Concentration (pCi/m 3 )

.064+/-

0.014 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Concentration (pCilm3 )

.11+/-

0.016 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Concentration (pCilm3)

.112+/-

0.020 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Concentration (pCilm3 )

.064+/-

0.014 0.001 0.001 0.001 0.001 0.002 Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C-19

Quarterly Air Particulate - Gamma Location: 037 27-DEC-06 Nuclide MN-54 ZN-65 ZR-NB -95 Concentration (pCi/m3) 0.001 0.001 0.001

Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 20

Quarterly Air Particulate - Gamma Location: 048 29-MAR-06 Nuclide Concentration (pCilm3 )

BE-7

.054+/-

0.012 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001 MN-54 0.001 ZN-65 0.001 ZR-NB-95 0.001 28-JUN-06 Nuclide Concentration (pCi/m3 )

BE-7

.107+/-

0.016 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001 MN-54 0.001 ZN-65 0.001 ZR-NB-95 0.001 03-OCT-06 Nuclide Concentration (pCi/m3)

BE-7

.085+/-

0.013 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001 MN-54 0.001 ZN-65 0.001 ZR-NB-95 0.001 27-DEC-06 Nuclide Concentration (pCilm3 )

BE-7

.075+/-

0.014 CO-58 0.001 CO-60 0.001 CS-134 0.001 CS-137 0.001 FE-59 0.001 Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 21

Quarterly Air Particulate - Gamma Location: 048 27-DEC-06 Nuclide MN*-4 ZN-65 ZR-NB -95 Concentration (pCi/m 3 )

0.001 0.001 0.001

Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 22

Quarterly Air Particulate - Gamma Location: 049 29-MAR-06 Nuclide Con BE-7 BE-7 CO-58 CO-58 CO-60 CO-60 CS-134 CS-134 CS-137 CS-137 FE-59 FE-59 MN-54 MN-54 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 28-JUN-06 Nuclide Conc BE-7

.1 CO-58 CO-60 CS-134 CS-137 FE-59 MN-54 ZN-65 ZR-NB-95 03-OCT-06 Nuclide Conc BE-7

.0 BE-7

.0 CO-58 CO-58 CO-60 CO-60 CS-134 CS-134 CS-137 centration (pCilm3 )

058+/-

0.016 061+/-

0.012 0.001 0.001 0.001 0.001 0.001 0.002 0.001 0.001 0.001 0.002 0.001 0.001 0.001 0.001 0.001 0.002 eentration (pCilm3 )

13+/-

0.014 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 entration (pCi/m3 )

84+/-

0.012 84+/-

0.016 0.001 0.001 0.001 0.001 0.001 0.001 0.001

Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

23

Quarterly Air Particulate - Gamma Location: 049 03-OCT-06 Nuclide CS-137 FE-59 FE-59 MN-54 MN-54 ZN-65 ZN-65 ZR-NB-95 ZR-NBD-95 27-DEC-06 Nuclide BE-7 CO-58 CO-60 CS-134 CS-137 FE-59 MN-54 ZN-65 ZR-NB-95 Concentration (pCilm3) 0.001 0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.001 Concentration (pCi/rn3)

.066+/-

0.011 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 Duplicate Analysis 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

24

Exposure Pathway - Waterborne Surface Water Location JRR Gamma Spectrum & H-3 Concentration (pCi/Liter)

Collection Date 12 -JAN- 06 12-JAN- 06 12-JAN-06 12 -JAN-06 12 -JAN-06 12-JAN-06 12 -JAN-06 12-JAN- 06 12 -JAN-06 12-JAN-06 12 -JAN-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 16-MAR-06 16-MAR-06 16-MAR-06 16-MAR-06 16-MAR-06 16-MAR- 06 16-MAR-06 16-MAR-06 16 -MAR-06 16-MAR-06 16-MAR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 Nuclide Duplicate Analysis.

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 6.400 7.600 10.200 3.200 5.400 4.800 6.900 3.600 7.000 3.300 145.000 2.300 2.100 3.900 3.500 2.500 3.600 8.600 3.300 4.000 3.300 153.000 2.600 2.900 5.400 3.800 5.600 3.900 8.900 4.200 3.200 5.200 176.000 4.900 4.400 5.100 6.800 5.500 3.900 8.900 4.300 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

25

Exposure Pathway - Waterborne Surface Water Location JRR Collection Date 13-APR-06 13-APR-06 13-APR-06 11-MAY-06 11-MAY- 06 11-MAY- 06 11-MAY-06 11-MAY-06 11-MAY- 06 11 -MAY- 06 11-MAY-06 11-MAY- 06 11-MAY-06 11-MAY-06 08 -JUN- 06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN- 06 13-JUL-06 13-JUL-06 13 -JUL-06 13-JUL-06 13-JUL-06 13-JUL-06 13-JUL-06 13 -JUL-06 13-JUL-06 13-JUL-06 13-JUL-06 13 -JUL- 06 13-JUL-06 13-JUL-06 13-JUL-06 13-JUL-06 Nuclide Gamma Spectrum & H-3 Concentration (pCilLiter)

CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 MN-54 CO-58 CO-S8 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 1-131 CS-134 CS-134 4.100 6.400 158.000 2.200 2.400 5.700 2.100 2.600 2.400 4.800 3.100 2.300 2.800 140.000 2.800 3.200 5.300 6.300 7.000 5.000 6.400 5.100 4.700 3.800 186.000 3.000 4.500 2.500 2.900 5.800 3.700 2.300 2.200 2.500 3.800 4.000 4.200 4.500 8.400 2.800 4.700 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 26

Exposure Pathway - Waterborne Surface Water Location JRR Gamma Spectrum & H-3 Concentration (pCi/Liter)

Collection

'Date 13-JUL-06 13-JUL-06 13 -JUL- 06 13 -JUL- 06 13-JUL-06 13-JUL-06 24 -AUG- 06 24 -AUG- 06 24 -AUG- 06 24-AUG-06 24 -AUG- 06 24 -AUG- 06 24-AUG-06 24 -AUG- 06 24 -AUG- 06 24 -AUG- 06 24-AUG-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 Nuclide Duplicate, Analysis CS-137 CS-137 BA-LA-140 BA-LA-140 H-3 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 4.500 5.200 1.600 6.700 147.000 147.000 1.400 2.100 3_500 1.500 4.200 2.900 3.100 S<

2.400 3.000 1.800 143.000 3.200 3.300 4.500 1.200 4.500 3.200 3.600 3.400 4.400 5.700 186.000 4.000 2.600 5.100 2.900 9.600 7.300 3.400 4.700 3.800 4.700 4.800 2.800 5.700 Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

27

Exposure Pathway - Waterborne Surface Water Location JRR Gamma Spectrum & H-3 Concentration (pCilLiter)

,Collection Date 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 16-NOV-06 16-NOV-06 16-NOV-06 16-NOV-06 16 -NOV- 06 16-NOV-06 16-NOV-06 16-NOV-06 16 -NOV- 06 16 -NOV- 06 16-NOV-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 I Nuclide 1-131 CS-134 CS-134 CS-137 CS-137 BA-LA-140 BA-LA-140 H-3 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-S9 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 8.100 4.500 3.500 4.200 4.200 6.400

.100 181.000 181.000 4.700 6.100 8.800 4.700 4.200 3.600 7.100 3.200 4.700 3.600 166.000 2.600 2.500 8.400 4.700 7.900 3.500 3.200 5.000 7.000 4.300 139.000 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 28

Exposure Pathway - Waterborne Surface Water Location SP Collection Date 12 -JAN - 06 12 -JAN- 06 12-JAN-06 12-JAN-06 12 -JAN- 06 12 -JAN-06 12-JAN- 06 12-JAN-06 12-JAN-06 12 -JAN-06 12-JAN- 06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 09-FEB-06 16-MAR-06 16-MAR-06 16-MAR-06 16-MAR- 06 16-MAR- 06 16-MAR- 06 16-MAR-06 16-MAR- 06 16-MAR-06 16-MAR-06 16-MAR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 13-APR-06 Nuclide Gamma Spectrum & H-3 Concentration (pCilLiter)

Duplicate Analysis MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-S4 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 8949.000 8624.000 2.900 2.900 3.500 3.800 3.700 4.000 7.000 3.500 4.700 3.400

+/-

267.000 4.400 3.800 5.900 3.600 6.700 5.700 6.700 4.300 5.000 3.900

+/-

258.000 2.500 2.100 3.600 2.000 7.000 4.300 5.400 3.000 2.900 2.500

+/-

283.000 3.700 3.600 5.100 3.100 6.300 S.500 7.400 4.000 9770.000-2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

29

Exposure Pathway - Waterborne Surface Water Location SP Gamma Spectrum & iH-3 Concentration.

(pCilLiter),

Collection Date 13-APR-06 13-APR-06 13-APR-06 11-MAY- 06 11-MAY-06 11-MAY-06 11-MAY-06 11-MAY- 06 11-MAY- 06 11 -MAY- 06 11 -MAY- 06 11-MAY-06 11-MAY-06 11-MAY-06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN-06 08-JUN-06 08 -JUN- 06 08 -JUN- 06 08 -JUN- 06 08-JUN- 06 08-JUN-06 13-JUL-06 13-JUL-06 13-JUL-06 13-JUL-06 13-JUL-06 13-JUL-06 13-JUL-06 13-JUL-06 13-JUL- 06 13-JUL-06 13-JUL-06 24 -AUG- 06 24 -AUG- 06 24 -AUG- 06 24 -AUG- 06 24 -AUG- 06 Nuclide

,Duplicate

'Analysis,.

CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-S8 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 MN-54 CO-58 CO-58 FE-59 9455.000+/-

9593.000+/-

<C 4.200 3.300 276.000 3.300 2.700 7.000 3.100 5.300 1.400 5.400 3.100 2.900 3.500 260.000 4.800 4.800 4.300 2.900 5.300 5.000 9.300 3.600 5.300 3.000 276.000 5.300 3.200 8.000 4.400 9.100 4.200 9.300 5.200 3. 900 8.400 300.000 3.900 3.600 4.400 3.600 5.600 10207.000+/ 11571.000-+/-

Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

30

Exposure Pathway - Waterborne Surface Water Location SP Gamma Spectrum &H-3 Concentration (pCi/Liter)

Collection Date 24-AUG-06 24 -AUG-06 24-AUG-06 24-AUG-06 24-AUG-06 24-AUG-06 24-AUG-06 24-AUG-06 24 -AUG-06 24-AUG-06 24 -AUG- 06 24 -AUG- 06 24-AUG-06 24-AUG-06 24 -AUG- 06 24 -AUG- 06 24-AUG-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 14-SEP-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 16-NOV-06 16 -NOV- 06 Nuclide:

FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 1-131 CS-134 CS-134 CS-137 CS-137 BA-LA-140 BA-LA-140 H-3 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-58 13661.000+/-

13964.000+/-

3.800 2.200 3.800 3.700 6.700 4.400 5.400 6.100 5.900 3.000 4.000 4.500 4.200 5.600 5.200 328.000 332.000 3.100 4.500 4.500 3.400 4.800 4.600 8.700 5.200 5.500 3.700 325.000 2.400 5.000 6.600 4.700 4.500 5.400 5.800 4.200 5.100 3.400 342.000 3.700 3.300 Duplicate

ý.Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 12976.000+/-

14267.000+/-

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

31

Exposure Pathway - Waterborne Surface Water Location SP Gamma Spectrum & H-3 Concentration (pCilLiter)

Collection

Date, 16-NOV-06 16-NOV-06 16 -NOV- 06 16-NOV-06 16 -NOV- 06 16-NOV-06 16-NOV-06 16-NOV-06 16-NOV-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 14-DEC-06 Nuclide Duplicate Analysis FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 MN-54 CO-5 8 FE-S9 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BA-LA-140 H-3 13479.000+/-

8.400 5.900 5.200 3.500 6.700 3.700 5.600 6.600 331.000 4.300 5.800 8.500 4.400 5.700 5.700 5.600 4.200 4.400 6.800 317.000 12883.000+/-

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

32

Exposure Pathway - Waterborne Ground Water Location B-12 Collection Date 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 10 -MAY- 06 10-MAY-06 10-MAY-06 10-MAY- 06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10 -MAY- 06 10-MAY- 06 10-MAY-06 30-AUG-06 30- AUG- 06 30-AUG-06 30-AUG-06 30-AUG-06 30 -AUG- 06 30 -AUG- 06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 17 -NOV- 06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 Nuclide Concentration (pCi/Liter)

Duplicate Analysis MN-54 CO-58 FE-59 CO-60 ZN-6S ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-S9 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-S8 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 1.900 3.200 6.500 3.500 5.300 3.100 2.800 2.100 1.900 183.000 0.355 3.800 2.700 3.400 2.200 4.900 3.300 3.000 3.500 4.400 129.000 0.305 2.200 3.100 4.100 1.500 3.100 3.900 2.800 3.000 3.600 139.000 0.352 1.300 2.300 4.000 4.300 1.800 2.300 2.600 3.100 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

33

Exposure Pathway - Waterborne Ground Water Location B-12

-Collection Date7 V

17-NOV- 06 17-NOV-06 17-NOV-06 Nuclide Concentration (pCilLiter)

Duplicate Analysis BA-LA-140 H-3 1-131 (CHEM) 2.000 171.000 0.458 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

34

Exposure Pathway - Waterborne Ground Water Location C-10 Collection I Date Nuclide "Concentration (pCi/Liter)

Duplicate Analysis 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 10 -MAY- 06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY -06 10-MAY- 06 10-MAY-06 10-MAY- 06 10-MAY-06 10-MAY-06 30-AUG-06 30-AUG- 06 30-AUG-06 30-AUG- 06 30-AUG-06 30-AUG- 06 30-AUG-06 30-AUG- 06 30-AUG-06 30-AUG-06 30-AUG-06 17-NOV- 06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 2006 Annual MN-54 CO-58 FE-S9 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 2.400 3.200 4.500 2.300 3.000 3.800 3.700 2.300 1.700 183.000 0.426 3.800 4.700 5.300 6.600 6.500 5.000 3.300 3.700 5.700 167.000 0.340 4.100 1.800 4.000 3.500 4.200 4.400 4.200 3.600 2.300 139.000 0.415 5.200 4.200 8.400 5.400 5.500 5.200 4.100 5.400 Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

35

Exposure Pathway - Waterborne Ground Water Location C-10 Collection Nuclide Date Concentration

-(pCilLiter)

Duplicate

'Analysis....

17-NOV-06 17-NOV-06 17-NOV-06 BA-LA-140 H-3 1-131 (CHEM) 5.300 171.000 0.388 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

36

Exposure Pathway - Waterborne Ground Water Location C-49 Nuclide Concentration (pCilLiter)

Collection Date Duplicate Analysis 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 10-MAY-06 10-MAY- 06 10 -MAY -06 10-MAY-06 10-MAY-06 10-MAY- 06 10-MAY-06 10-MAY- 06 10-MAY-06 10-MAY-06 10-MAY-06 30-AUG-06 30 -AUG- 06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 17-NOV-06 17-NOV-06 17-NOV- 06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 2006 Annual MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 5.000 6.000 14.800 3.100 4.900 5.600 4.700 5.800 5.000 183.000 0.481 5.200 5.500 5.300 6.200 14.300 6.000 5.800 6.100 10.700 167.000 0.352 3.600 4.600 6.200 3.500 7.000 6.400 3.800 4.400 3.400 139.000 0.432 1.700 2.700 2.100 2.100 3.400 5.500 2.100 1.700 Duplicate Duplicate Duplicate Duplicate Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

37

Exposure Pathway - Waterborne Ground Water Location C-49 Nuclidei.

Concentration (pCilLiter)

Collection Date 17-NOV - 06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV- 06 17-NOV- 06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 Duplicate Analysis ZN-65 ZN-65 ZR-NB-9 5 ZR-NB-95 CS-134 CS-134 CS-137 CS-137 BA-LA-140 BA-LA-140 H-3 H-3 1-131 (CHEM) 1-131 (CHEM) 5.300 4.600 3.000 3.400 2.300 3.100 2.700 3.400 2.100 3.900 166.000 166.000 0.466 0.465 Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

38

Exposure Pathway - Waterborne Ground Water Location F-1 Collection *

.Nuclide Concentration

....'-,Duplicate

ý"'Date (pCi/Liter)'

'Analysis 01-FEB-06 MN-54 4.200 01-FEB-06 CO-58 5.800 01-FEB-06 FE-59 5.600 01-FEB-06 CO-60 2.500 01-FEB-06 ZN-65 3.500 01-FEB-06 ZR-NB-95 6.200 01-FEB-06 CS-134 4.800 01-FEB-06 CS-137 3.900 01-FEB-06 BA-LA-140 5.200 01-FEB-06 H-3 183.000 01-FEB-06 1-131 (CHEM) 0.326 10-MAY-06 MN-54 1.900 10-MAY-06 CO-58 2.000 10-MAY-06 FE-59 6.400 10-MAY-06 CO-60 3.500 10-MAY-06 ZN-65 4.300 10-MAY-06 ZR-NB-95 2.000 10-MAY-06 CS-134 2.400 10-MAY-06 CS-137 2.400 10-MAY-06 BA-LA-140 3.300 10-MAY-06 H-3 129.000 10-MAY-06 1-131 (CHEM) 0.319 30-AUG-06 MN-54 3.100 30-AUG-06 CO-58 2.900 30-AUG-06 FE-59 2.100 30-AUG-06 CO-60 2.400 30-AUG-06 ZN-65 6.700 30-AUG-06 ZR-NB-95 4.400 30-AUG-06 CS-134 2.500 30-AUG-06 CS-137 3.600 30-AUG-06 BA-LA-140 3.500 30-AUG-06 H-3 139.000 30-AUG-06 1-131 (CHEM) 0.472 17-NOV-06 MN-54 2.000 17-NOV-06 CO-58 1.900 17-NOV-06 FE-59 1.900 17-NOV-06 CO-60 2.000 17-NOV-06 ZN-65 2.300 17-NOV-06 ZR-NB-95 2.900 17-NOV-06 CS-134 2.400 17-NOV-06 CS-137 2.200 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

39

Exposure Pathway - Waterborne Ground Water Location F-1 Collection Date 17-NOV-06 17-NOV-06 17-NOV-06 Nuclide Concentration (pCilLiter)

Duplicate Analysis BA-LA-140 3.800 171.000 1-131 (CHEM) 0.385 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 40

Exposure Pathway - Waterborne Ground Water Location G-2 Nuclide Concentration (pCilLiter)

Collection Date Duplicate Analysis 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY - 06 10-MAY-06 10-MAY-06 10-MAY- 06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG- 06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 2006 Annual MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 5.300 2.800 8 300 2.900 6.300 6.400 4.300 6.400 3.400 183.000 0.360 4.500 2.100 7.400 5.000 7.700 4.000 3.700 5.600 3.700 140.000 0.445 2.600 2.800 7.100 2.100 5.100 3.000 2.900 2.900 2.600 139.000 0.337 1.600 2.200 6.000 3.500 4.500 3.500 2.500 3.100 Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 41

Exposure Pathway - Waterborne Ground Water Location G-2 Nuclide Concentration

.(pCilLiter)

!Collection

-Date 17-NOV-06 17-NOV-06 17-NOV-06 Duplicate Analysis BA-LA-140 H-3 1-131 (CHEM) 2.500 169.000 0.385 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 42

Exposure Pathway - Waterborne Ground Water Location J-1 Collection Date.

Nuclide Concentration (pCilLiter)

'Duplicate Analysis 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 10-MAY-06 10-MAY-06 10- MAY - 06 10-MAY-06 10-MAY- 06 10-MAY-06 10-MAY-06 10- MAY - 06 10-MAY-06 10- MAY - 06 10-MAY- 06 30-AUG-06 30-AUG- 06 30-AUG- 06 30-AUG-06 30-AUG-06 30 -AUG- 06 30-AUG-06 30-AUG-06 30 -AUG- 06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30 -AUG- 06 30-AUG-06 30-AUG-06 2006 Annual MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 MN-54 CO-58 C0-S8 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 CS-134 CS-134 CS-137 CS-137 BA-LA-140 BA-LA-140 H-3 2.400 2.800 5.100 2.200 3.300 5.600 6.900 3.400 3.000 183.000 0.295 4.400 6.000 8.100 6.400 13.000 6.800 6.200 4.800 7.000 129.000 0.296 3.400 3.300 3.900 3.800 8.300 3.500 2.200 2.100 4.700 4.000 4.900 4.500 4.600 3.300 5.800 4.100 6.100 6.000 139.000 Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

43

Exposure Pathway - Waterborne Ground Water Location J-1 Nuclide.,'

Concentration (pCi/Liter).

Collection Date 30-AUG-06 30-AUG-06 30-AUG-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06

,Duplicate

.Analysis 1-131 (CHEM) 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM) 139.000 0.478 0.359 3.500 2.900 5.800 3.300 7.100 3.900 3.100 2.800 2.900 169.000 0.368 Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 44

Exposure Pathway - Waterborne Ground Water Location J-2 Nuclide Concentration (pCilLiter)

Collection Date 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 101-MAY - 06 10-MAY- 06 10-MAY - 06 10-MAY-06 10-MAY- 06 10-MAY-06 10 -MAY -06 10-MAY-06 10-MAY- 06 10-MAY - 06 10-MAY- 06 30 -AUGY-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG- 06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30 -AUG- 06 30-AUG-06 17 -NOV- 06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV-06 17-NOV- 06 17-NOV-06 Duplicate Analysis MN-54 CO-58 FE-S9 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 4.000 3.500 13.200 4.600 9.300 5.600 4.300 5.500 4.900 183.000 0 297 4.800 3.800 8.500 3.700 8.400 6.900 2.700 1.800 6.100 140.000 0.234 2.200 2.700 3.800 2.100 2.500 3.600 3.200 4.000 4.000 139.000 0.347 5.000 3.300 5.800 3.800 4.000 4.700 3.100 4.500 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

45

Exposure Pathway - Waterborne Ground Water Location J-2 Nuclide Choncentration (pCilLiter)

Collection Date 17-NOV-06 17-NOV-06 17-NOV-06

+Duplicate Analysis BA-LA-140 H-3 1-131 (CHEM) 6.000 171.000 0.356 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 46

Exposure Pathway - Waterborne Ground Water Location L-49 Nuclide Concentration (pCi/Liter)i*.

Collection.'

Date 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY-06 10-MAY- 06 10-MAY- 06 30-AUG-06 30 -AUG- 06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30-AUG-06 30 -AUG- 06 30 -AUG- 06 30 -AUG- 06 30-AUG-06 17-NOV-06 17 -NOV- 06 17 -NOV- 06 17-NOV-06 17 -NOV- 06 17-NOV-06 17-NOV-06 17-NOV-06 Duplicate Analysis MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 H-3 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 3.000 4.600 5.200 2.800 8.300 3.700 5.500 4.200 4.100 183.000 0.351 3.600 3.300 8.000 3.800 6.900 5.600 5.300 5.800 3.200 167.000 0.339 5.700 3.500 5.300 2.600 4.800 4.900 4.400 4.100 3.600 139.000 0.370 3.000 3.600 7.500 4.900 4.800 6.000 4.800 5.000 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

47

Exposure Pathway - Waterborne Ground Water Location L-49 Collection Date 17-NOV-06 17-NOV-06 17-NOV-06 Nuclide

.:Concentration

.:.(pCilLiter)

Duplicate

,Analysis BA-LA-140 H-3 1-131 (CHEM) 7.700 169.000 0.397 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

48

Exposure Pathway - Waterborne Drinking Water Location BW-15 Nuclide Concentration

>;~-Pr'/Lite'r).,L=

..Collection Date 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB -06 01-FEB-06 01-FEB-06 01 -FEB- 06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FMAR- 06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MARF-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 Duplicate,.

Analysis MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 CS-134 CS-134 CS-137 CS-137 BA-LA-140 BA-LA-140 GROSS BETA GROSS BETA 1-131 (CHEM) 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 3.072+/-

2.552+!-

3.100 5.900 2.700 5.300 5.400 8.700 4.200 1.500 2.600 9.400 5.100 7.000 3.000 5.100 3.100 4.200 2.900 4.200 1.159 1.101 0.415 0.422 3.500 1.600 3.700 3.700 5.000 5.400 3.400 2.400 2.400 0.652 0.371 4.400 4.800 6.800 4.000 5.200 3.900 2.900 6.300 Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2.455+/

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

49

Exposure Pathway - Waterborne Drinking Water Location BW-1 5

.'Collection 0..Nuclide-Concentration Duplicate Date (pCi/Liter)

Analysis 05-APR-06 BA-LA-140 3.200 05-APR-06 GROSS BETA 2.651+/-

0.519 05-APR-06 1-131 (CHEM) 0.336 03-MAY-06 MN-54 2.900 03-MAY-06 CO-58 2.500 03-MAY-06 FE-59 6.300 03-MAY-06 CO-60 1.300 03-MAY-06 ZN-65 3.000 03-MAY-06 ZR-NB-95 2.700 03-MAY-06 CS-134 2.300 03-MAY-06 CS-137 3.000 03-MAY-06 BA-LA-140 1.900 03-MAY-06 GROSS BETA 5.108+/-

1.232 03-MAY-06 1-131 (CHEM) 0.283 07-JUN-06 MN-54 4.500 07-JUN-06 CO-58 2.300 07-JUN-06 FE-59 6.000 07-JUN-06 CO-60 5.400 07-JUN-06 ZN-65 9.000 07-JUN-06 ZR-NB-95 3.500 07-JUN-06 CS-134 5.700 07-JUN-06 CS-137 4.000 07-JUN-06 BA-LA-140 4.400 07-JUN-06 GROSS BETA 3.982+/-

0.760 07-JUN-06 1-131 (CHEM) 0.456 06-JUL-06 MN-54 1.000 06-JUL-06 CO-S8 0.900 06-JUL-06 FE-59 1.500 06-JUL-06 CO-60 1.000 06-JUL-06 ZN-65 2.100 06-JUL-06 ZR-NB-95 1.100 06-JUL-06 CS-134 0.900 06-JUL-06 CS-137 1.300 06-JUL-06 BA-LA-140 1.000 06-JUL-06 GROSS BETA 4.108+/-

1.108 06-JUL-06 1-131 (CHEM) 0.299 02-AUG-06 MN-54 4.500 02-AUG-06 CO-58 4.300 02-AUG-06 FE-59 4.400 02-AUG-06 CO-60 2.500 02-AUG-06 ZN-65 4.700 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

50

Exposure Pathway - Waterborne Drinking Water Location BW-1 5

Nuclide.,

Concentration (pCilLiter)

Collection Date I 02 -AUG-06 02-AUG-06 02-AUG-06 02-AUG-06 02-AUG-06 02-AUG- 06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 01-NOV-06 01-NOV-06 01-NOV-06 01-NOV-06 01-NOV-06 01-NOV-06 01-NOV-06 01-NOV-06 01-NOV-06 01-NOV-06 01-NOV-06 05-DEC-06 05-DEC-06 Duplicate Analysisý ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 3.327 5.201 4.700 5.600 5.500 3 500

+/-

0.708 0.259 4.500 3.300 6.800 1.700 2.900 3.600 3.600 3.200 5.000

+/-

1.073 0.354 3.000 3.100 6.600 2.200 5.500 3.600 3.100 4.700 2.500

/I-0.817 0.475 4.900 6.900 7.700 4.700 8.300 3.200 5.900 6.100 7.100 1.087 0.294 2.200 3.300 5.302+

3.037+

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

51

Exposure Pathway - Waterborne Drinking Water Location BW-15 Collection Date 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 04-JAN-07 04 -JAN- 07 04-JAN-07 04-JAN-07 04 - JAN- 07 04-JAN-07 04-JAN-07 04-JAN-07 04 -JAN-07 04 -JAN-07 04-JAN-07 Nuclide Concentration (pCilLiter)

Duplicate::

Analysis FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM) 3.112+/-

6.460+/-/-

2.300 1.400

1. 900 4.200 3.400 4.000 2.700 0.697 0.499 5.400 3.100 5.700 4.200 5.600 5.100 3.500 3.200 3.600 1.343 0.248 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

52

Exposure Pathway - Waterborne Drinking Water Location 10-DW Nuclide

.Concentration (pCilLiter)

Collection Date 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-FEB-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 01-MAR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR-06 05-APR- 06 05-APR- 06 03-MAY-06 03 -MAY-06 03 -MAY- 06 03-MAY-06 03 -MAY-06 03 -MAY-06 03 -MAY- 06 03-MAY-06 Duplicate Analysis MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 2.749 2.417 2.447 4.300 2.200 3.900 2.800 9.000 4.400 4.100 4.900 6.100

+/-

0.692 0.334 5.300 5.200 4.200 5.100 10.800 5.000 3.900 4.900 3.200

+/-

0.670 0.292 4.500 3.500 9.500 3.700 3.200 6.400 4.900 5.500 7.100

+/-

0.498 0.321 4.100

.5000 6.000 4.900 S.300 3.400 S.100 4.300 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

53

Exposure Pathway - Waterborne Drinking Water Location IO-DW Nuclide Concentration (pCi/Liter)

'Collection Dateln-03 -MAY-06 03 -MAY-06 03 -MAY-06 07-JUN- 06 07-JUN-06 07-JUN -06 07-JUN- 06 07-JUN-06 07-JUN-06 07-JUN-06 07-JUN- 06 07-JUN-06 07-JUN-06 07-JUN-06 06-JUL-06 06 -JUL- 06 06-JUL-06 06-JUL-06 06-JUL-06 06-JUL-06 06-JUL-06 06-JUL-06 06-JUL-06 06-JUL-06 06 -JUL- 06 02 -AUG- 06 02 -AUG- 06 02-AUG-06 02-AUG-06 02 -AUG- 06 02 -AUG- 06 02-AUG-06 02-AUG-06 02-AUG-06 02 -AUG- 06 02-AUG- 06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 Duplicate Analysis BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-S9 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 5.233+/-

3.720+/-

3.824+/-

3.300 1.135 0.292 2.200 1.500 4.000 3.300 2.400 2.700 2.700 1.700 3.400 0.755 0.336 2.000 1.900 3.700 2.300 4.700 2.500 1.800 2.200 1.800 1.159 0.365 3.100 3.600 2.700 1.800 5.200 3.300 3.900 4.100 4.400 0.718 0.273 3.800 2.300 8.800 3.200 8.500 3.130+!-

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

54

Exposure Pathway - Waterborne Drinking Water Location IO-DW Nuclide Concentration (pCi/Liter)

'Collection Date 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 07-SEP-06 03 -OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03-OCT-06 03 -OCT-06 03-OCT-06 03-OCT-06 03 -OCT- 06 01 -NOV- 06 01-NOV-06 01-NOV-06 01 -NOV- 06 01-NOV-06 01-NOV- 06 01-NOV-06 01-NOV- 06 01-NOV-06 01-NOV-06 01-NOV-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 05-DEC-06 04 -JAN-07 04 -JAN-07 Duplicate Analysis ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-S9 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 7.692+/-

2.808+/ -

5.403+!-

3.364+/-

3.000 4.600 3.500 2.700 1.332 0.393 4.200 2.800 7.200 1.900 3.600 3.400 3.700 3.000 4.500 0.716 0.490 4.900 4.200 4.000 4.900 8.300 5.500 3.300 4.500 7.400 1.137 0.345 2.300 1.500 4.100 3.300 5.700 3.500 3.800 3.200 2.700 0.753 0.393 2.800 4.300 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

55

Exposure Pathway - Waterborne Drinking Water Location 1O-DW Collection Date 04 -JAN- 07 04-JAN-07 04 -JAN-07 04-JAN -07 04 -JAN-07 04-JAN- 07 04-JAN- 07 04 -JAN- 07 04 -JAN-07 Nuclide Concentration, (pCi/Liter)

Duplicate

.Analysis FE-59 CO-60 ZN-65 ZR-NB-95 CS-134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM) 6.800 5.100 7.800 4.800 4.300 4.200 5.200 4.562+/-

1-199 0.385 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

56

Exposure Pathway - Waterborne Drinking Water Location NF-DW Collection Nuclide Concentration Duplicate Date:

(pCi/Liter)

Analysis 01-FEB-06 MN-54 4.100 01-FEB-06 CO-58 3.900 01-FEB-06 FE-59 7.300 01-FEB-06 CO-60 2.800 01-FEB-06 ZN-65 6.900 01-FEB-06 ZR-NB-95 5.600 01-FEB-06 CS-134 6.400 01-FEB-06 CS-137 5.400 01-FEB-06 BA-LA-140 3.300 01-FEB-06 GROSS BETA 2.976+/-

0.713 01-FEB-06 1-131 (CHEM) 0.303 01-MAR-06 MN-54 3.800 01-MAR-06 CO-58 3.400 01-MAR-06 FE-59 6.200 01-MAR-06 CO-60 2.700 01-MAR-06 ZN-65 4.200 01-MAR-06 ZR-NB-95 4.500 01-MAR-06 CS-134 2.600 01-MAR-06 CS-137 3.000 01-MAR-06 BA-LA-140 3.200 01-MAR-06 GROSS BETA 3.270+/-

0.742 01-MAR-06 1-131 (CHEM) 0.297 05-APR-06 MN-54 4.200 05-APR-06 CO-58 4.500 05-APR-06 FE-59 3.600 05-APR-06 CO-60 6.000 05-APR-06 ZN-65 5.900 05-APR-06 ZR-NB-95 3.700 05-APR-06 CS-134 3.300 05-APR-06 CS-137 3.800 05-APR-06 BA-LA-140 6.100 05-APR-06 GROSS BETA 2.232+/-

0.486 05-APR-06 1-131 (CHEM) 0.329 03-MAY-06 MN-54 4.100 03-MAY-06 CO-58 3.900 03-MAY-06 FE-59 7.500 03-MAY-06 CO-60 5.700 03-MAY-06 ZN-65 5.700 03-MAY-06 ZR-NB-95 3.300 03-MAY-06 CS-134 3.700 03-MAY-06 CS-137 3.200 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

57

Exposure Pathway - Waterborne Drinking Water Location NF-DW Nuclide Concentration

.(pCilLiter)

Collection

'"Date 03 -MAY-06 03 -MAY-06 03 -MAY-06 07 -JUN- 06 07-JUN- 06 07-JUN-06 07-JJUN-06 07-JUN-06 07-JUN-06 07-JUN-06 07-JUN-06 07-JUN-06 07-JUN-06 07-JUN- 06 Duplicate Analysis BA-LA-140 GROSS BETA 1-131 (CHEM)

MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 CS -134 CS-137 BA-LA-140 GROSS BETA 1-131 (CHEM) 5.700 3.476+/-

1.150 0.356 5.000 3.200 7.300 3.900 12.900 4.300 2.200 5.100 3.500 6.164+/-

1.278 0.347 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

58

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location BW-1 5 Collection SDate 05-APR-06 06 -JUL-06 03-OCT-06 04 - JAN-07

1. Nuclide Concentration (pCilLiter),

Duplicate Analysis H-3 H-3 H-3 H-3 130.000 171.000 161.000 152.000 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

59

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location 10-DW Collection Date,.

05-APR-06 06-JUL-06 03-OCT-06 04 -JAN-07 Nuclide

,Concentration (pCi/Liter)"

Duplicate AnalySis H-3 H-3 H-3 H-3 130.000 171.000 161.000 152.000 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

60

Exposure Pathway - Waterborne Drinking Water Quarterly Tritium Analysis Location NF-DW Collection Date 05-APR-06 07-JUN-06 Nuclide Concentration (pCilhiter)

Duplicate.

Analysis H-3 H-3 130.000 172.000 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

61

Exposure Pathway - Waterborne Shoreline Sediment Location DC Collection

1Date_.

19-MAY-06 19-MAY-06 19-MAY-06 19-MAY - 06 19-MAY-06 19 -MAY- 06 19-MAY-06 19-MAY- 06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 Nuclide Gamma Spectrum Concentration (pCiIKg Dry)

Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 12123.000+1-735.200 25.600 18.900 38.600 17.400 52.800 40.400 27.600 11521.000+/-

965.700 27.500 34.300 95.500 16.700 84.400 53.500 35.600 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

62

Exposure Pathway - Waterborne Shoreline Sediment Location JRR Gamma Spectrum

Nuclide Concentration.

(pCi/Kg Dry)

Collection Date 19-MAY-06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY- 06 19 -MAY-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV- 06 27-NOV- 06 27-NOV-06 27-NOV-06 27-NOV-06 Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 7107.100+/-

11308. 000 +/-

856.900 38.200 31.800 26.300 34.100 57.600 44.400 39.000 792.800 31.200 35.900 65.000 23.600 77.100 45.200 21.300 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

63

Exposure Pathway - Ingestion Fish Location CCL Collection Date Sample Description Nuclide 19-MAY - 06 19-MAY- 06 19-MAY- 06 19-MAY- 06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY- 06 19-MAY- 06 19-MAY-06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY- 06 19-MAY- 06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY- 06 CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-S9 FE-59 CO-60 CO-60 ZN-65 ZN-65 CS-134 CS-134 CS-137 CS-137 H-3 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-59 CO-60 Gamma Spectrum & H-3 Concentration (pCilKg.Wet) 3603.200+/-

437.500 21.200 17.800 22.900 18.400 23.500 18.500 16.600 6534.000+/-

197.000 3369.400+/-

589.000 3051.000+/-

396.000 19.300 17.700 26.000 9.200 51.700 25.300 25.000 20.000 27.500 21.500 17.200 11.300 18.800 16.500 6389.000+/-

197.000 6462.000+/-

198.000 3777.300+/-

637.300 27.600 21.600 73.600 28.100 44.400 11.600 11.800 5733.000+/-

175.000 3939.000+/-

682.200 29.300 14.800 36.400 21.300 Duplicate Analysis Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate FRESHWATER FRESHWATER FRESHWATER FRESHWATER FRESHWATER FRESHWATER FRESHWATER FRESHWATER FRESHWATER SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH DRUM DRUM DRUM DRUM DRUM DRUM DRUM DRUM DRUM BASS BASS BASS BASS 19-MAY-06 SMALLMOUTH BASS 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

64

Exposure Pathway - Ingestion Fish Location CCL Collection

Date Sample.

Description Nuclide 19-MAY- 06 19-MAY-06 19-MAY-06 19-MAY- 06 19-MAY-06 19-MAY -06 19-MAY-06 19-MAY- 06 19-MAY- 06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12 -OCT- 06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH BASS BASS BASS BASS BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH CHANNEL CATFISH COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP COMMON CARP ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-S9 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-59 FE-S9 CO-60 CO-60 Gamma.Spectrum & H-3

Concentration,*..

(pCi/Kg Wet) 31.200 19.400 21.900 7175.000+/-

209.000 3126.500+/-

532.300 25.600 19.000 29.400 18.900 55.600 16.000 24.300 6273.000+/-

188.000 3519.400+/-

474.100 13.700 22.200 68.800 20.000 25.700 15.500 16.700 12694.000+/-

270.000 2957.900+/-

495.200 20.200 24.100 55.500 23.400 58.900 16.200 20.000 9642.000+/-

241.000 3476.500+/-

569.600 3056.700+/-

405.700 15.900 15.100 15.600 15.800 33.700 28.800 24.800 12.400 Duplicate Analysis SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO Duplicate Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

65

Exposure Pathway - Ingestion Fish Location CCL Collection Date,'.

Sample Description Nuclide 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 12-OCT-06 SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WHITE BASS WIPER WIPER WIPER WIPER WIPER WIPER WIPER WIPER WIPER BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO ZN-65 ZN-6S CS-134 CS-134 CS-137 CS-137 H-3 H-3 K-40 MN-54 CO-58 FE-S9 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 Gamma Spectrum & H-3 vConcentration (pCi/Kg Wet) 37.900 37.500 16.000 11.900 21.200 13.300 12513.000+/-

247.000 13366.000+/-

254.000 3757.100+/-

647.000 18.200 19.500 51.400 26.800 21.700 19.000 22.500 14745.000+/-

291.000 3503.800+/-

417.500 12.100 9.700 41.900 10.500 15.800 13.400 8.900 13021.000+/-

263.000

'Duplicate Analysis Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

66

Exposure Pathway - Ingestion Fish Location JRR Collection Date Sample Description

'Nuclide 19-MAY-06 CHANNEL CATFISH 19-MAY-06 CHANNEL CATFISH 19-MAY-06 CHANNEL CATFISH 19-MAY-06 CHANNEL CATFISH 19-MAY-06 CHANNEL CATFISH 19-MAY-06 CHANNEL CATFISH 19-MAY-06 CHANNEL CATFISH 19-MAY-06 CHANNEL CATFISH 19-MAY-06 CHANNEL CATFISH 19-MAY-06 COMMON CARP 19-MAY-06 COMMON CARP 19-MAY-06 COMMON CARP 19-MAY-06 COMMON CARP 19-MAY-06 COMMON CARP 19-MAY-06 COMMON CARP 19-MAY-06 COMMON CARP 19-MAY-06 COMMON CARP 19-MAY-06 COMMON CARP 19-MAY-06 WHITE CRAPPIE 19-MAY-06 WHITE CRAPPIE 19-MAY-06 WHITE CRAPPIE 19-MAY-06 WHITE CRAPPIE 19-MAY-06 WHITE CRAPPIE 19-MAY-06 WHITE CRAPPIE 19-MAY-06 WHITE CRAPPIE 19-MAY-06 WHITE CRAPPIE 19-MAY-06 WHITE CRAPPIE 27-NOV-06 CHANNEL CATFISH 27-NOV-06 CHANNEL CATFISH 27-NOV-06 CHANNEL CATFISH 27-NOV-06 CHANNEL CATFISH 27-NOV-06 CHANNEL CATFISH 27-NOV-06 CHANNEL CATFISH 27-NOV-06 CHANNEL CATFISH 27-NOV-06 CHANNEL CATFISH 27-NOV-06 CHANNEL CATFISH 27-NOV-06 LARGEMOUTH BASS 27-NOV-06 LARGEMOUTH BASS 27-NOV-06 LARGEMOUTH BASS 27-NOV-06 LARGEMOUTH BASS 27-NOV-06 LARGEMOUTH BASS K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-59 CO-60 Gamma Spectrum & H-'3

Concentration.-

(pCilKg Wet) 3867.300+/-

456.800 15.300 11.700 18.100 19.700 16.700 14.200 14.900 108.000 3210.400+/-

417.400 16.600 16.400 36.100 10.100 28.100 14.200 10.300 101.000 3429.100+/-

452.000 16.600 19.200 23.500 16.100 28.100 23.700 17.500 106.000 3394.700+/-

397.600 12.700 11.100 38.400 7.100 27.300 9.900 9.200 122.000 3472.600+/-

417.800 15.200 9.700 25.300 17.400 Duplicate

Analysis, 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

67

Exposure Pathway - Ingestion Fish Location JRR Collection Date 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 Sample

Description LARGEMOUTH LARGEMOUTH LARGEMOUTH-LARGEMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH SMALLMOUTH ThIALLMOUTH SMALLMOUTH SMALLMOUTH

~MALLMOUTH BASS BASS BASS BASS BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO BUFFALO Nuclide ZN-65 CS-134 CS-137 H-3 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 H-3 Gamma Spectrum & H-3 Concentration (pCi/Kg Wet)

Duplicate.

Analysis 30.200 5.900 11.600 141.000 3228.200+/-

411.800 9.800 8.800 28.900 10.100 18.200 13.600 11.700 150.000 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

68

Exposure Pathway - Ingestion Food/Garden Location D-1 Collection Date Sample Description

'Nuclide Gamma Spectrum Concentration (pdilKg Wet)

Duplicate

Analysis, 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 17-MAY-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 14-JUN-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB 12-JUL-06 RHUBARB BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 455.500 +/-

95.200 6906.400 +1-225.600 8.700 7.000 16.700 10.200 15.600 7.400 9.400 9.100 10.800 245.000 4090.400 +/-

668.500 22.200 23.400 25.600 31.000 51.600 15.600 41.700 20.300 21.400 249.600 +/-

117.900 3110.200 +/-

302.500 8.500 6.400 25.700 12.200 12.200 11.500 27.100 10.700 13.100 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

69

Exposure Pathway - Ingestion Food/Garden Location D-2 Collection

.. Sample Date,',

Description Nuclide Gamma Spectrum Concentration (pCi/Kg Wet):'.

Duplicate

-Analysis 14 -JUN-06 14-JUN-06 14 -JUN- 06 14 -JUN -06 14 -JUN- 06 14 -JUN -06 14-JUTN- 06 14-JUN-06 14 -JUN- 06 14-JUN-06 14-JUN-06 12-JUL-06 12-JUL-06 12-JUL- 06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 12 -JUL-06 12-JUL-06 12-JUL-06 09-AUG-06 09-AUG-06 09-AUG- 06 09-AUG-06 09-AUG-06 09-AUG- 06 09-AUG-06 09-AUG- 06 09-AUG-06 09-AUG-06 09-AUG-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-S9 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-S8 FE-59 CO-60 ZN-65 ZR-NB-95 539-700 +/-

148.800 3969.000 +/-

363.100 7.800 7.800 20.500 9.400 10.900 12.300 16.300 10.400 8.300 613.000 +/-

172.400 4226.100 +/-

362.200 11.200 10.000 24.600 11.000 29.900 20.500 33.900 11.700 15.500 319.900 +/-

104.900 3009.400 +/-

229.500

8. 000 5.400 12.200 9.000 15.100 10.100 56.900 5.900 5.900 658.800 +/-

228.500 5165.800 +/-

564.900 15.700 16.400 28.800 15.000 36.200 14.900 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

70

Exposure Pathway - Ingestion Food/Garden Location D-2 Collection Sample Date Description 13-SEP-06 HORSERADISH LEAVES 13-SEP-06 HORSERADISH LEAVES 13-SEP-06 08-NOV-06 08-NOV-06 08-NOV-06 HORSERADISH HORSERADISH HORSERADISH HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES

Nuclide, 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 Gamma Spectrum Concentration (pCi/Kg Wet) 38.400 22.000 Duplicate Analysis 1831.300 +/-

5985.800 +/-

24.300 247.800 494.100 16.600 11.000 29.500 11.300 21.600 11.300 28.500 11.200 12.100 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 71

Exposure Pathway - Ingestion Food/Garden Location N-1 Collection Sample Date Description Nuclide.

Gamma Spectrum Concentration (pCi/KgWet)

Duplicate Analysis 17-MAY - 06 17-MAY- 06 17-MAY- 06 17 -MAY- 06 17 -MAY - 06 17-MAY- 06 17-MAY-06 17-MAY - 06 17-MAY- 06 17-MAY-06 17-MAY- 06 14 -JUN-06 14-JUN-06 14-JUN- 06 14 -JUN- 06 14 -JUN-06 14 -JUN -06 14 -JUN- 06 14 -JUN-06 14 -JUN- 06 14-JUN-06 14 -JUN-06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06.:

12-JUL-06 12-JUL-06 12-JUL-06 09-AUG-06 09-AUG- 06 09-AUG-06 09 -AUG- 06 09-AUG-06 09-AUG-06 }

09-AUG-06 RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB RHUBARB HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-6S ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 781.300 6072.400 727.500 5288.300 570.000 4856.400 425.200 3990.500

+/-

96.700

+/-

223.600 5.600 5.400 15.100 8.000 19.000 8.400 9.700 6.300 8.200

+/-

346.500

+/-

565.500 21.800 23.300 21.500 22.000 29.000 28.500 46.600 22.400 25.500

+/-

225.200

+/-

544.200 22.200 16.600 24.000 7.900 30.600 19.900 42.700 15.200 17.400

+-/-

187.400

+/-

458.400 13.300 10.500 26.300 17.300 20.600 20.100 09-AUG-06 HORSERADISH LEAVES 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

72

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

Sample, Date

.Description Nuclide Gamma Spectrum Concentration (pCi/KgWet)

Duplicate Analysis 09-AUG-06 09-AUG-06 09-AUG-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 13-SEP-06 11-OCT-06 11-OCT-06 11-OCT-06 11-OCT-06 11-OCT-06 11-OCT-06 11-OCT-06 11-OCT-06 11-OCT-06 11-OCT-06 11-OCT-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES HORSERADISH LEAVES 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 BE-7 K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 39.000 15.600 20.600 188.600 459.100 11.800 4301.000 483.700 5263.400 1261.100 +

1253.100 +

4165.700 +

4487.300 +

+/-

13.800 30.900 8.300 33.900 10.400 24.800 11.300 15.600

+/I-289.900 637.200 17.600 11.800 20.300 16.000 44.300 16.500 34.800 19.500 14.800

-/-

241.100

+/-

217.800

/-

469.500

-/-

451.400 17.300 15.400 12.600 15.200 24.400 28.000 13.400 8.800 32.100 32.900 14.100 15.100 Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

73

Exposure Pathway - Ingestion Food/Garden Location N-1

ýCollection Sample Date Description Nuclide

-Gamma Spectrum

Concentration:

S(pCiIKg Wet) 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH 08-NOV-06 HORSERADISH LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES 1-131 1-131 CS-134 CS-134 CS-137 CS-137 24.300 24.200 12.400 9.200 17.100 11.900

'Duplicate, Analysis Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

74

Exposure Pathway - Ingestion Food/Garden Location Q-6

'Collection Sample Dated,-:

Description Nuclide Gamma Spectrum Concentration

..(pCi/Kg Wet)

Duplicate Analysis 14 -JUN- 06 14 -JUN-06 14 -JUN -06 14 -JUN- 06 14 -JUN- 06 14 -JUN- 06 14-JUN-06 14 -JUN- 06 14 -JUN- 06 14 - JUN- 06 14 -JUN- 06 12 -JUL- 06 12-JUL-06 12-JUL-06 12 -JUL- 06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 12-JUL-06 HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH HORSERADISH LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES LEAVES BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 6090.100 +/-

247.900+-

3 564.70 0 +/ -

640.000 925.500 31.400 41.300 90.100 35.200 45.800 42.500 44.800 37.900 44.400 140.700 333.800 6.200 8.100 14.200 8.600 22.200 12.700 27.400 10.600 13.900 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C - 75

Exposure Pathway - Ingestion Feed and Forage Location NR-D1 Collection

'Sample Date Description 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS Nuclide BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 Gamma Spectrum Concentration (pCiIKg Wet)

Duplicate Analysis 18112.000 137.300

+/-

756.000 18.500 15.700 56.500 22.100 54.800 19.100 26.800 13.800 14.400 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

76

Exposure Pathway - Ingestion Feed and Forage Location NR-D2 Collection Sample

.. Date

'Description 22-SEP-06 IRRIGATED CORN 22-SEP-06 22-SEP-06 22-SEP-06 22-SEP-06 22-SEP-06 22-SEP-06 22-SEP-06 22-SEP-06 22-SEP-06 22-SEP-06 18-OCT-06 18-OCT-06 18-OCT-06 18-OCT-06 18-OCT-06 18-OCT-06 18-OCT-06 18-OCT-06 18-OCT- 06 18-OCT-06 18-OCT- 06 18-OCT-06 18-OCT-06 18-OCT-06 18-OCT- 06 18-OCT-06 18-OCT-06 18-OCT-06 18-OCT-06 18 -OCT- 06 18-OCT-06 18-OCT-06 IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED IRRIGATED CORN CORN CORN CORN CORN CORN CORN CORN CORN CORN SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS Nuclide BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 BE-7 K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 1-131 CS-134 CS-134 CS-137 CS-137 2372.700 +/-

20398.000+-

19S37.000+-

Gamma Spectrum° SConcentration (PCi/KgWet) 78.600 Duplicate Analysis 250.400 6.400 5.500 13.000 6.400 22.000 5.600 14.300 7.400 9.900 108.100 81.200 841.000 987.400 16.900 18.400 10.300 26.900 32.500 63.400 17.900 17.100 58.000 76.900 24.000 27.300 23.400 25.200 10.500 24.700 16.000 28.300 Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

77

Exposure Pathway - Ingestion Feed and Forage Location NR-U1 Collection Sample Date.-

Description 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 08-NOV-06 NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED NON-IRRIGATED CORN CORN CORN CORN CORN CORN CORN CORN CORN CORN CORN SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS SOYBEANS

'Nuclide BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 Gamma Spectrum Concentrationvr

(pCi/Kg Wet)

Duplicate

.Analysis 2524.100 +/-

14696.000+-

121.400 360.000 9.000 5.000 16.300 7.100 18.800 8.300 9.900 8.600 10.000 107.100 609.300 11.400 7.800 25.800 8.900 25.100 9.700 18.300 13.000 17.200 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

78

Exposure Pathway - Aquatic Bottom Sediment Location DC Gamma Spectrum Nuclide Concentration (pCi/Kg. Dry)

Collection

...,'Date 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY - 06 19-MAY-06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 25-OCT-06 Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 13324.000

+/-

827.600 34.600 22.000 65.900 107.300

+/-

32.000 58.100 28.400 189.300 +/-

40.900 14040.000 +/-

1221.000 49.700 139.100 +/-

224.100

+/-

49.100 131.600 50.600 109.100 60.100 64.400 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

79

Exposure Pathway - Aquatic Bottom Sediment Location EEA Gamma Spectrum

Nuclide, Concentration (pCiiKg Dry)

Collection

..Date.

26 -MAY- 06 26-MAY- 06 26-MAY- 06 26-MAY- 06 26-MAY- 06 26-MAY- 06 26 -MAY- 06 26-MAY-06

.Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 12874.000

-+/-

715.700 21.700 20.800 44.200 16.800 41.700 17.100

+/-

33.600 96-900

+

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

80

Exposure Pathway - Aquatic Bottom Sediment Location JRR Collection I Date 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY-06 19-MAY - 06 27-NOV-06 27-NOV-06 27-NOV- 06 27-NOV-06 27-NOV-06 27-NOV- 06 27-NOV-06 27-NOV- 06 27-NOV-06 27-NOV-06 27-NOV- 06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 27-NOV-06 Nuclide Gamma Spectrum

'Concentration (pCiIKg Dry)'

Duplicate' Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 CS-134 CS -134 CS-137 CS-137 21825.000

+/-

164.800

+/-

17323.000

+/-

17213.000

+/-

140.500 135.800 i-1128.000 48.700 35.700 46.500 33.400 97.600 66.700 62.900 846.300 1126.000 28.500 42.000 22.900 32.200 50.400 58.600 20.700 33.000 63.800 107.500 18.400 61.900 45.600 44.100 Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

81

Exposure Pathway - Aquatic Bottom Sediment Location MUDS Gamma Spectrum Nuclide'.

Concentration (pCiIKg Dry)

Collection Date 26-JUN -06 26 -JUN- 06 26-JUN-06 26-JUN-06 26-JUN-06 26 -JUN - 06 26-JUN-06 26-JUN-06 Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 8695.100

+/- -

816.000 34.700 19.700 92.200 39.300 86.500 53.700 41.100 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

82

Exposure Pathway - Aquatic Vegetation Location EEA Collection

,Date, 26-MAY- 06 26-MAY-06 26 -MAY - 06 26-MAY-06 26-MAY-06 26-MAY-06 26 -MAY - 06 26-MAY-06 26-MAY- 06 26-MAY-06 26-MAY-06 Sample

==

Description:==

ALGAE ALGAE ALGAE ALGAE ALGAE ALGAE ALGAE ALGAE ALGAE ALGAE ALGAE PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED Nuclide BE-7 K-40 MN-54 CO-58 FE-S9 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 Gamma Spectrum

.Concentration.

(pCi/KgWet)

Duplicate Sample" 653.600+/

1622.300 +/

70.500 113.800

4.800

< 3.400

< 11.500

< 4.600

< 9.700

10.200

< 55.700

< 5.500

< 6.800 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

83

Exposure Pathway - Aquatic Vegetation Location MUDS Gamma Spectrum

, Concentration (pCi/Kg Wet)

Collection Date 26 -JUN- 06 26-JUN- 06 26-JUN-06 26-JUN-06 26-JUN- 06 26-JUN- 06 26-JUN-06 26-JUN-06 26-JUN-06 26-JUN-06 26-JUN-06 26-JUN-06 26 -JUN- 06 26-JUN-06 26-JUN-06 26-JUN-06 26 -JUN- 06 26-JUN-06 26-JUN-06 26 -JUN- 06 26-JUN-06 26-JUN-06 14-NOV-06 14-NOV-06 14-NOV-06 14-NOV-06 14-NOV-06 14-NOV-06 14-NOV-06 Sample Description PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED PONDWEED WATER NAIAD WATER NAIAD WATER NAIAD WATER NAIAD WATER NAIAD WATER NAIAD WATER NAIAD Nuclide BE-7 BE-7 K-40 K-40 MN-54 MN-54 CO-58 CO-58 FE-59 FE-59 CO-60 CO-60 ZN-65 ZN-65 ZR-NB-95 ZR-NB-95 1-131 1-131 CS-134 CS-134 CS-137 CS-137 BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 224.800+/- 120.800

< 149.600 1717.100+/- 244.300 1893.100 +/-

223.300

< 10.000

< 10.600

< 11.200

< 5.800

< 20.700

19.800

< 8.700

< 10.200

< 12.800

10.200

< 9.900

14.100

< 30.700

< 32.900

< 9.300

10.500

< 10.400

< 7.100 252.800 +/-

124.800 3363.200+/- 335.700

12.500

< 14.500

< 22.900

12.100

< 24.200 Duplicate, Sample.

Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate Duplicate 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

84

Exposure Pathway - Aquatic Vegetation

,Collection Date 14 -NOV-06 14-NOV-06 14-NOV-06 14-NOV-06 Gamma Spectrum.

Concentration (pCilKg Wet)

Sample Description WATER NAIAD WATER NAIAD WATER NAIAD WATER NAIAD Nuclide ZR-NB-95 1-131 CS-134 CS-137 Duplicate Sample.-

< 13.500

25.100

< 11.400

< 14.400 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

85

Exposure Pathway - Terrestrial Vegetation Location EEA Collection Date 26-MAY -06 26-MAYy- 06 26-MAY-06 26-MAY-06 26-MAY-06 26-MAY-06 26 -MAY-06 26-MAY-06 26-MAY-06 26 -MAY- 06 26-MAY-06 Sample Description PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE Nuclide Gamma Spectrum tConcentration".

,:.(pCilKg Wet)

Duplicate Analysis BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 357.100+/-

7484.200+/-

202.500 638.200 17.800 20.600 41.100 19.300 42.400 19.200 34.100 18.200 20.800 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

86

Exposure Pathway - Terrestrial Vegetation Location MUDS Collection

Date, 26-JUN-06 26-JUN-06 26 -JUN-06 26-JUN- 06 26-JUN-06 26-JUN-06 26 -JUN -06 26-JUN-06 26-JUN-06 26-JUN-06 26-JUN-06 Sample Description PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE PASTURAGE

'Nuclide Gamma Spectrum Concentration

(pCi/Kg Wet)

Duplicate Analysis BE-7 K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 ZR-NB-95 1-131 CS-134 CS-137 1064.900+/-

216.900 6269.300+/-

522.200 10.100 17.600 40.600 12.000 21.700 11.800 38.000 10.800 17.500 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

87

Exposure Pathway - Terrestrial Soil Location EEA Gamma Spectrum Nuclide Concentration (PCiIKg Dry),

Collection

Date 26-MAY-06 26 -MAY- 06 26-MAY-06 26-MAY-06 26-MAY-06 26-MAY- 06 26-MAY-06 26-MAY-06 Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 13180.000+/-

690.400 22.900 21.400 43.300 7.900 50.200 19.200 21.800 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

88

Exposure Pathway - Terrestrial Soil Location MUDS Collection

.Date 26-JUN-06 26-JUN-06 26 -JUN- 06 26-JUN- 06 26-JUN-06 26-JUN- 06 26-JUN -06 26-JUN-06 Nuclide Gamma Spectrum Concentrationi.

(pCi/KgPDry),

Duplicate Analysis K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 10501.000+/-

939.800 36.200 23.000 77.500 38.200 86.200 48.000 46.300 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C -

89

Exposure Pathway - Ingestion Deer Location A.8 Collection

Sample Date Description Nuclide GammaSpectrum Concentration

.(pCi/Kg Wet)

Dutplicate Analysis 27-OCT-06 27-OCT- 06 27-OCT-06 27-OCT- 06 27-OCT-06 27-OCT-06 27-OCT-06 27-OCT-06 DEER DEER DEER DEER DEER DEER DEER DEER K-40 MN-54 CO-58 FE-59 CO-60 ZN-65 CS-134 CS-137 2860.500+/-

401.700 18.700 18.900 52.700 10.700 32.000 13.900 13.400 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page C

90

WOLF CREEK GENERATING STATION 2006 LAND USE CENSUS REPORT A,

Prepared by:

Teresa L. Rice Peer Review:

Ralph L. Logsdon Approved by:

I

Fro, 09-20-06 Date 09-21-06 Date 9/21/06 Date 09/21/06 Date Robert A. Hammond Approved by:

Kevin J. Moles 2006 Annual Radiological'Environmental Operating Report Wolf Creek Generating Station Page D - 1

EXECUTIVE

SUMMARY

The annual Land Use Census of rural residents within five miles of the Wolf Creek Generating Station (WCGS) has been completed for 2006 in accordance with AP 07B-004, [Offsite Dose Calculation Manual (Radiological Environmental Monitoring Program)].

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

Changes may be necessary for the Radiological Environmental Monitoring Program (REMP) broadleaf vegetation sample locations for 2007. The two broadleaf vegetation locations with the highest calculated annual average D/Q rankings have changed to R2.08-NALN1650 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. The residents will be contacted prior to the 2007 growing season and based upon their cooperation; the REMP will be revised accordingly.

It should be noted that locations Q2.35-MILA1619 and N2.38-RRDR9 were established sampling locations for the 2006-growing season.

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 ten 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.

2006 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 "G" was the only sector that experienced a change in the nearest residence. The residence located at G1.56-QURD1384 is currently vacant, thus, the nearest residence in sector "G" is now G3.03-13RD1820.

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

These changes are identified in Table 3.

There were no changes regarding milk sample locations. Again, no locations were identified that routinely milked animals for human consumption.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 3

TABLE 1 2006 Land Use Census Data Location of Nearest:

Sector A

B C

D E

F G

H J

K L

M N

P Q

R Residence A2.60-17TEl 520 B3.53-QURD1755 C1.92-16RD1655 D2.03-QULA1571 E1.77-QULA1485 F1.76-14RD1730 G3.03-13RD1820 H3.09-12RD1711 J3.70-11 RD1540 K2.70-12LA1439 L2.10-NARD 1339 M2.47-14RD1322 N1.71-NARD1441 P2.76-HW751534 Q2.35-MILA1619 R2.08-NALN1650 Milkinq Animals None None None None None None None None None None None None None None None None Broadleaf Garden None None C1.92-16RD1655 D3.00-16RD1829 E4.40-TRRD1551 F2.44-RERD1391 G3.66-12RD1814 H3.30-QURD1 175 J3.90-1 1 RD 1531 K4.10-NARD1 120 L2.39-NARD1309 M3.10-133LA1 290 N2.38-RRDR9 P2.76-HW751534 Q2.35-MILA1619 R2.08-NALN1650 Identifiers are based upon the following protocol:

EXAMPLE: A1.4-16RD1525 "A" = Sector A "1.4" = 1.4 miles from the reactor "16RD1525" = address 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D -4

TABLE 2 SECTOR 2005 NEAREST RESIDENCE A

A2.60-17TE1520 B

B3.53-QURD1755 C

C1.92-16RD1655 D

D2.03-QULA1571 E

E1.77-QULA1485 F

F1.76-14RD1730 G

G1.56-QURD1384 H

H3.09-12RD1711 J

J3.70-11RD1540 K

K2.70-12LA1439 L

L2.10-NARD1339 M

M2.47-14RD1322 N

N1.71-NARD1441 P

P2.76-HW751534 Q

Q2.35-MILA1619 R

R2.08-NALN1650 2006 NEAREST RESIDENCE A2.60-17TEl 520 B3.53-QURD1755 C1.92-16RD1655 D2.03-QULA1571 El.77-QULA1485 F1.76-14RD1730 G3.03-13RD1820 H3.09-12RD1711 J3.70-1 1 RD1540 K2.70-12LA1439 L2.1 0-NARD 1339 M2.47-14RD1322 N1.71-NARD1441 P2.76-HW751534 Q2.35-MILA1619 R2.08-NALN1650 NOTE: Entries underlined indicate changes from the 2005 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.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 5

TABLE 3 2006 Land Use Census Milk and Garden Data SECTOR A

B C

D E

F G

H J

K L

M N

P Q

R 2005 MILKING ANIMALS None None None None None None None None None None None None None None None None 2006 2005 CLOSEST MILKING GARDEN ANIMALS PRODUCING BROADLEAF VEGETATION None None None B3.53-QURD1755 None C1.92-16RD1655 None D3.00-16RD1829 None E4.40-TRRD1551 None F2.44-RERD1391 None G1.56-QURD1384 None H3.30-QURD1 175 None J3.90-11RD1531 None K4.10-NARD 1120 None L2.39-NARD1309 None M3.10-13LA1 290 None N2.38-RRDR9 None P2.76-HW751534 None Q2.35-MILA1619 None None 2006 CLOSEST GARDEN PRODUCING BROADLEAF VEGETATION None None C1.92-16RD1655 D3.00-16RD1829 E4.40-TRRD1551 F2.44-RERD1391 G3.66-12RD1814 H3.30-QURD1 175 J3.90-1 1 RD1531 K4.10-NARD1 120 L2.39-NARD1309 M3.10-13LA1290 N2.38-RRDR9 P2.76-HW751534 Q2.35-MILA1619 R2.08-NALN1650 NOTE: Underlined entries indicate changes from the 2005 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.

2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 6

TABLE 4 Information Used for D/Q Calculations FROM LAND FROM AN USE 045 DIST CALC NEAR NEAR FAR FAR SECTOR D/Q

20%

SECTOR (MI) (METERS)

DIST D / Q DIST D / Q CALC RANKING A

0 0

B 0

0 C

1.92 3091 3000 7.26E-10 4000 4.36E-10 7.00E-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 3000 6.41E-10 4000 3.84E-10 4.03E-10 8

4.84E-10 G

3.66 5893 5000 4.97E-10 6000 3.65E-10 3.79E-10 10 4.55E-10 H

3.30 5313 5000 5.84E-10 6000 4.29E-10 5.35E-10 7

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 3848 3000 9.61E-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 9

4.73E-10 N

2.38 3832 3000 1.09E-09 4000 6.54E-10 7.27E-10 3

8.72E-10 P

2.76 4444 4000 7.30E-10 5000 4.97E-10 6.27E-10 6

7.52E-10 Q

2.35 3784 3000 1.75E-09 4000 1.05E-09 1.20E-09 2

1.44E-09 R

2.08 3349 3000 2.54E-09 4000 1.52E-09 2.18E-09 1

2.62E-09 Originated by:

Verified by:

jl",Lwa ý/ ýý- Date:

09-20-06 Date:

09-21-06 2006 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page D - 7

v t e Letter Sequence Request
TAC:MD4839, Removal of Main Steam and Main Feedwater Valve Isolation Times from Technical Specifications (Approved, Closed)
Initiation Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request, Request Acceptance, Acceptance Administration Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance, Withholding Request Acceptance Meeting, Meeting, Meeting, Meeting, Meeting, Meeting, Meeting Questions 7 December 2007 27 November 2007 27 November 2007 Answers 9 May 2007 16 January 2009 Results Approval, Approval, Approval Other: ET 07-0038, License Renewal Application, Amendment 3, ET 09-0008, Additional Information Regarding Main Steam and Feedwater Isolation System (Msfis) Controls Modification, ET 09-0011, Additional Information Regarding Main Steam and Feedwater Isolation System (Msfis) Controls Modification, ML072970028, ML080980134, ML090650056
MONTHYEAR2007-08-08 [Table View]

ML071150130

Text

Subject:

Enclosure:

SUMMARY

SUMMARY

SUMMARY

SUMMARY

SUMMARY

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