ML031270059

2002 Annual Radiological Environmental Operating Report for Wolf Creek

ML031270059
Person / Time
Site:	Wolf Creek
Issue date:	04/30/2003
From:	Harris K Wolf Creek
To:	Document Control Desk, Office of Nuclear Reactor Regulation
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RA 03-0055
Download: ML031270059 (184)

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Wi~LF CREEK

'NUCLEAR OPERATING CORPORATION Karl A. Crony) Harris Manager Regulatory Affairs APR 3 0 2003 RA 03-0055 U. S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, DC 20555

Subject:

Docket No. 50-482: 2002 Annual Radiological Environmental Operating Report Gentlemen:

The enclosure contains the 2002 Annual Radiological Environmental Operating Report that 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, 2002 through December 31, 2002.

There are no commitments contained in this correspondence.

If you have any questions concerning this matter, please contact me at (620) 364-4038, or Ms. Jennifer Yunk at (620) 364-4272.

Very truly yours, K6-A -('jfrr Karl A. (Tony) Harris KAH/rlg Enclosure cc: J. N. Donohew (NRC), wle D. N. Graves (NRC), wle E. W. Merschoff (NRC), wle Senior Resident Inspector (NRC), w/e PO. Box 411 / Burlington, KS 66839/ Phone (620) 364-8831 An Equal Opportunity Employer M/FIHCIVET

WOLF CREEK NUCLEAR OPERATING CORPORATION WOLF CREEK GENERATING STATION 2002 ANNUAL RADIOLOGICAL ENVIRONMENTAL OPERATING REPORT IA April 15, 2003

TABLE OF CONTENTS List of Tables ii List of Figures ii List of Charts ii Introduction 1

I.

Program Description I

II. Discussion of Results 4

Ill. Annual Land Use Census Results 9

IV. Program Revisions/Changes 10 V.

Program Deviations 10 VI. Interlaboratory Comparison Program Results 11 VII. Comparison to the Radioactive Effluents Release Program 11 Tables 12 Figures 23 Charts 28 Appendix A - Interlaboratory Comparison Program Results A-1 Appendix B - Summary Tables B-1 Appendix C - 2002 Individual Sample Results C-1 Air Particulate Filters C-2 Charcoal Filters C-24 Surface Water C-40 Ground Water C-53 Drinking Water C-73 Shoreline Sediment C-92 Fish C-97 Food/Garden Crops C-1 04 Feed and Forage C-110 Bottom Sediment C-1 13 Aquatic Vegetation C-115 Terrestrial Vegetation C-118 Soil C-120 Deer C-1 23 i

LIST OF TABLES 1 Radiological Environmental Monitoring Program Description 12 2 Sample Location Numbers, Distances (Miles) and Directions 17 3 TLD Results 18 4 Land Use Census Data 20 5 Comparison of 2001 and 2002 Land Use Census Milk and Garden Data 21 6 Dosimetry Performance Testing Results 22 LIST OF FIGURES 1 Airborne Pathway Sampling Locations 23 2

Direct Radiation Pathway Sampling Locations 24 3 Waterborne Pathway Sampling Locations 25 4

Ingestion Pathway Sampling Locations 26 5 Distant Sampling Locations 27 LIST OF CHARTS 1 Airborne Gross Beta Weekly Results 28 2

Historical Airborne Smoothed Indicator and Control Gross Beta 29 3 TLD Nearsite Locations and Control Locations 30 4

Wolf Creek Lake Surface Water Smoothed Tritium Data 31 5 Drinking Water Gross Beta, Historical 32 6

Detected Cs-137 Activity in Bottom Sediment 33 7 Tritium Dose in Wolf Creek Lake Surface Water and Released Liquid Tritium 34 Maximum Organ Dose ii

INTRODUCTION The 2002 Annual Radiological Environmental Operating Report for Wolf Creek Generating Station (WCGS) covers the period from January 1 through December31, 2002. WCGS is located in Coffey County, Kansas, approximately five miles northeast of Burlington, Kansas.

Fuel loading commenced at WCGS on March 12, 1985.

The operational phase of the Radiological Environmental Monitoring Program (REMP) began with initial criticality on May 22, 1985, and the first detectable quantities of radioactivity were reported in plant effluents in June 1985.

This report contains a description of the REMP conducted by Wolf Creek Nuclear Operating Corporation (WCNOC), results of sample analyses, a discussion of monitoring program results, a description of revisions to and deviations from the program, and the results of Interlaboratory Comparison Programs.

Individual sample results and a summary of results in the Nuclear Regulatory Commission (NRC) Branch Technical Position specified format are included as appendices.

Plant-related activation, corrosion or fission products were not detected during 2002 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 2002 in surface water, fish, and bottom sediment samples.

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

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 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.

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

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.

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 1 of 34

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, 18 and 37 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 Hartford (location 40). A control location at Harris (location 48) was added during the sample 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 locations are shown in Figure 5.

B. Direct Radiation Pathway Panasonic UD-814-AQ thermoluminescent dosimeters (TLDs) were used at 48 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. 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), 40 (Hartford) 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 quarterly 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 the outfall of John Redmond Reservoir (JRR) as a control location (location MUSH [Make-Up Screen House]) and from the discharge cove (DC) of Wolf Creek Lake as an indicator location.

Quarterly grab samples of ground water were collected from four wells.

Location B-12 is hydrologically up gradient from the site and was used as a control location. Three locations (C-10, C-49 and D-65) are hydrologically down gradient from the site and were used as indicator sample locations.

Duplicate samples were obtained from location C-49 and were labeled L-49. These duplicate samples served as laboratory quality checks.

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 2 of 34

Drinking water was sampled at the water treatment facilities for the towns of Burlington (control location BW-15) and LeRoy (indicator location LW-40).

The Burlington facility is located upstream and the LeRoy facility is located downstream of the confluence of the discharge from Wolf Creek Lake and the Neosho River.

Composite samples were obtained monthly from automatic samplers at each location that collected approximately 27 ml of drinking water every two hours.

Shoreline sediments were sampled semiannually for gamma analysis at the Wolf Creek 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 Wolf Creek Lake (indicator, Figure 4) for gamma isotopic analysis. Several species of game fish and rough fish were sampled. Gamma isotopic analysis was performed on boneless meat portions of the fish. Fish were also analyzed for tritium.

Broadleaf vegetation samples were collected monthly when available during the growing season from five gardens. Three indicator (A-2, G-1 and L-1) gardens (Figure 4) and two control (D-1 and S-4) 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. The samples were irrigated with water from the Neosho River.

Two crop samples were obtained from control location NR-Ul; however, these samples were not irrigated with Neosho River water. Gamma isotopic analysis was performed on each sample. Crop sample locations are identified on Figure 5.

E. Additional Samples Collected (not required by AP 07B-004)

Surface water was collected monthly from the spillway (SP) of Wolf Creek Lake as an indicator location.

The water samples were analyzed by gamma isotopic analysis and were also analyzed for tritium. These samples were collected as part of a cooperative sampling effort with the Kansas Department of Health and Environment (KDHE).

The sample location is identified on Figure 3.

Drinking water indicator location NF-DW (Neosho Falls) was established near the end of the sample year. The drinking water sample was analyzed for gross beta, gamma emitters and 1-131. This sample location was added due to the upcoming closure of the LeRoy drinking water treatment facility and is identified on Figure 5.

Shoreline sediments were collected for gamma analysis at the Environmental Education Area (EEA) and the Make-up Water Discharge Structure (MUDS). These samples were collected as part of a cooperative sampling effort with the KDHE. The sample locations are identified on Figure 3.

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 3 of 34

Bottom sediment samples were collected semiannually for gamma analysis at the Wolf Creek Lake discharge cove (DC) indicator location and the control location (JRR). 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 for gamma analysis from indicator locations at the Wolf Creek Lake alternate discharge cove (DC ALT), the MUDS and the EEA.

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 MUDS and EEA for gamma isotopic analyses. 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 for gamma isotopic analyses. These samples were collected as part of a cooperative sampling effort with the KDHE. The sample locations are identified on Figure 4.

A road-killed deer was sampled from indicator location B1.1 for gamma isotopic analyses. 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.

The gross beta results of 2002 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/M3. The 2002 weekly gross beta analyses range for indicator locations was 0.015 to 0.054 pCi/M3, which was within the 1983 and 1984 pre-operational range. Additionally, the 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 4 of 34

annual mean for indicator locations for 2002 (0.029 pCi/M3) was lower than the annual mean for 1983 (0.032 pCi/rn3).

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

The annual mean for indicator locations for 2002 (0.029 pCi/M3) was lower than the annual mean of the control locations (0.030 pCi/m3).

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

In 1984, the range for Be-7 detected activity was 0.024 to 0.211 pCi/mr3 for indicator locations, and the annual mean for indicator locations was 0.069 pCi/M3. In 2002, the range for Be-7 detected activity was 0.042 to 0.087 pCi/M3 for indicator locations, and the annual mean for indicator locations was 0.068 pCi/M3.

The control location annual mean for Be-7 detected activity (0.071 pCi/M3) was higher than the indicator locations annual mean (0.068 pCi/m3).

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 2002 was 0.226 mR/day and the annual mean for the control locations was 0.211 mR/day. These results are similar to the pre-operational results for 1981. 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.

In 2002, the indicator location with the highest annual mean (0.272 mR/day) was location 47.

Location 47 was added to the sampling program in 1997 and has since been the indicator location with the highest annual mean. The close proximity of location 47 to the Radwaste Building is likely the reason direct radiation levels are higher at this location.

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 40) 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.

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 5 of 34

C. Waterborne Pathway (1) Surface Water Tritium, attributable to WCGS operation, was detected in all surface water samples collected from Wolf Creek Lake during 2002. An adult drinking 2 liters per day of surface water collected from the Wolf Creek Lake discharge cove, using the annual mean of detected tritium activity (13,522 pCi/liter), would receive a committed effective dose equivalent of 0.617 mRem per year. An adult drinking 2 liters per day of surface water collected from the Wolf Creek Lake discharge cove, using the highest detected tritium activity (19,002 pCi/liter), would receive a committed effective dose equivalent of 0.868 mRem per year. Chart 4 illustrates smoothed tritium data for location DC from startup in May 1985 through 2002.

It can be seen in Chart 4 that monthly surface water tritium concentrations have trended upward since plant startup. This is expected until the average tritium concentration of the lake reaches equilibrium.

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

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 Required lower limits of detection were met and radioactivity was not detected in any ground water samples.

(3) Drinking Water Chart 5 illustrates the historical drinking water gross beta data 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 (4.8 pCi/liter) was the same as the annual mean of the indicator locations (4.8 pCi/liter). The 2002 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/liter, and the annual mean of the indicator location gross beta activity was 7.5 pCi/liter.

Required lower limits of detection were met. Tritium activity was not detected in any drinking water samples. 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 2002 and no unusual trends were noted.

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 6 of 34

(4) Shoreline Sediment Naturally occurring K-40 was detected in samples obtained from indicator locations (7,770-9,809 pCi/kg, dry) and in samples obtained from control locations (10,795-11,585 pCi/kg, dry).

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

Required lower limits of detection were met and K40 was the only activity detected in shoreline sediment samples.

Activity due to plant operation was not evident in shoreline sediment samples during 2002 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 2002, fish were also analyzed for tritium. All fish samples taken from Wolf Creek Lake had tritium activity detected (8,109.8 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 2002 (9,170 pCi/kg), would receive a committed effective dose equivalent of 0.012 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 was also detected pre-operationally.

One mustard green sample obtained from indicator location (L-1) had Cs-137 activity (41.5 +/-

23.8 pCi/kg wet) detected. The lab re-analyzed the mustard green sample and the Cs-137 activity detected was 29.8 +/- 22.2 pCi/kg wet. The measured Cs-1 37 activity was attributed to fallout and not to a recently produced fission product associated with plant operation. Cs-137 activity was detected preoperationally in food and garden samples and has been detected at the control location during plant operation.

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

Activity attributable to plant operation was not detected.

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 7 of 34

(4) Crop Samples Gamma analysis detected naturally occurring K-40 to be present in all of the samples. K-40 activity was also detected during pre-operational crop monitoring.

K-40 was the only activity detected in crop samples. The ODCM required lower limits of detection were met and no unusual trends were noted.

E. Additional Samples Collected (not required by AP 07B-004)

(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 (227.8 and 307.7 pCi/kg) was detected in the samples obtained from the Wolf Creek 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 2002.

Cs-137 activity (262.7 and 280.5 pCi/kg) was detected in the indicator samples obtained from the Wolf Creek Lake discharge cove. A portion of this activity is due to fallout and a portion of this activity is likely plant-related since Cs-134 activity has been detected in the past. Cs-137 activity was detected in pre-operational samples, and the results for 2002 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 950 pCi/kg. The decay corrected range of pre-operational Cs-1 37 activity detected is approximately 49 to 585 pCi/kg.) Cs-137 activity has been identified in plant effluents. Cs-137 activity (165.3 and 105.8 pCi/kg) was also detected in the control location samples.

Chart 6 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 6 trend line indicates that as expected, Cs-137 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 2002 and were also detected during pre-operational monitoring.

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

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 8 of 34

(3) Terrestrial Vegetation Naturally occurring K-40 activity was detected in the samples.

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

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

Cs-137 (153.2 and 200.7 pCi/kg) activity was detected in the soil samples. The pre-operational Cs-137 results (255 to 2,160 pCi/kg) for soil samples were decay corrected.

The decay corrected pre-operational range is approximately 172 to 1453 pCi/kg. The measured Cs-137 activity of the soil samples obtained during 2002 are within or below the decay corrected pre-operational range. Cs-137 activity was not detected in air samples collected during 2002. The measured Cs-137 activity in the soil sample was likely due to previous fallout and not to a recently produced fission product associated with plant operation.

No unusual trends were identified.

5) Deer Gamma analysis detected naturally occurring K-40 (2,629.7 +/- 388.1 pCi/kg wet) activity in the deer sample obtained from indicator location B1.1. 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.

Ill. ANNUAL LAND USE CENSUS RESULTS Summary An annual Land Use Census of rural residents within five miles of WCGS was completed during 2002. The two broadleaf vegetation locations with the highest calculated annual average D/Q rankings were G1.6-QURD1384 and N2.38-RRDR9. AP 07B-004, Offsite Dose Calculation Manual (Radiological Environmental Monitoring Program) specifies that an "alternate location may be used to provide continued monitoring". The third-ranked garden was at location H3.30-QURD1 175. Tables 4 and 5 contain the summarized results and illustrated changes.

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."

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 9 of 34

Table 5-1, Attachment A, of the ODCM (AP 07B-004) requires that broadleaf vegetation samples be collected from two indicator locations with the 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 five miles of the site having the highest dose potential.

Methodology Surveys were sent to the rural residents within five miles of WCGS. A follow-up mailing was sent to residents who did not respond. The survey excluded the residents of New Strawn, Burlington and a trailer park just 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. Of the 178 surveys mailed to the rural residents, 152 were returned by mail or completed by conversing with the residents.

The remaining surveys were partially completed with information obtained by driving by the locations.

Results Table 4 reflects the nearest residences, milk animals and broadleaf gardens. Table 5 lists the changes as compared to the 2001 Land Use Census results for milk animals and gardens producing broadleaf vegetation.

Changes in the nearest residence occurred in sectors B, F, M, N and R. No milk locations were identified.

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

IV. PROGRAM REVISIONS/CHANGES Based upon the evaluation of Performance Improvement Request 20011640, the air sample control location was changed from Hartford, Kansas (location 40) to Harris, Kansas (location

48) and the broadleaf vegetation control location was changed from Hartford, Kansas (S-4) to Harris, Kansas (location D-1).

V. PROGRAM DEVIATIONS Air Particulate and Radiolodine Due to an ice storm that occurred from January 29 through February 2, 2002, electrical power outages were experienced at air sample locations 2, 18, 32 and 40.

(Performance Improvement Request 20020393) 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 10 of 34

VI. INTERLABORATORY COMPARISON PROGRAM RESULTS During 2002, Environmental, Inc. was contracted to perform radiological analysis of environmental samples for WCNOC.

The lab participated in the Environmental Resource Associates (ERA) Proficiency Testing Program. Appendix A is the Interlaboratory Comparison Program Results for Environmental, Inc. TLD intercomparison results, in-house spikes, blanks, duplicates and mixed analyte performance evaluation program results are also contained in Appendix A.

Table 6 is a summary of statistical results of performance testing of TLDs processed at Enrico Fermi 2 by Detroit Edison, which participated in the National Voluntary Laboratory Accreditation Program.

VII. COMPARISON TO THE RADIOACTIVE EFFLUENTS RELEASE PROGRAM As described in the sections discussing radioisotopes found in the surface water from Wolf Creek Lake, dose that may be received as a result of tritium released from WCGS is consistent with the theoretical doses calculated by the Radioactive Effluent Release Program.

Chart 7 indicates that the dose to a man resulting from drinking surface water from Wolf Creek Lake was within a reasonable expected value.

Dose for the surface water was determined using the December tritium activity detected for each calendar year at the discharge cove.

Released tritium maximum organ dose (mRem) values were obtained from Annual Radioactive Effluent Release Reports and are not cumulative (i.e., the values reflected are the totals for the respective years).

An adult drinking 2 liters per day of surface water collected from the Wolf Creek Lake discharge cove, using the 2002 December detected tritium activity from the discharge cove (12,341 pCi/liter), would receive a committed effective dose equivalent of 0.563 mRem per year. This information was derived from radiological environmental monitoring.

The maximum organ dose for tritium released in liquid effluents in 2002 was 0.299 mRem. This information was obtained from the Annual Radioactive Effluent Release Report.

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

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 11 of 34

TABLE I 2002 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM DESCRIPTION (SAMPLE COLLECTION SPECIFIED BY ODCM)

EXPOSURE PATHWAY/

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

Radioiodine and Particulates Samples from five 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, 18 and 37 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 the lowest ranked D/Q sector (Location 48 on Figure 5) 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 12 of 34

TABLE I (Cont.)

EXPOSURE PATHWAY/

SAMPLE NUMBER OF SAMPLES AND SAMPLE LOCATIONS SAMPLING AND COLLECTION FREQUENCY TYPE AND FREQUENCY OF ANALYSIS DIRECT RADIATION (See Figures 2 & 5) 40 routine monitoring stations with two or more dosimeters measuring dose continuously, placed as follows:

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). Five sectors [A, B, D, G, and L] contain an additional station (Locations 2, 3, 10, 14 and 28).

The balance of the stations to be placed in special interest areas such as population centers (Locations 23 and 32), nearby residences 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 13 of 34

TABLE 1 (Cont.)

EXPOSURE PATHWAY/

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

r s

z ti S

C WATERBORNE

(

many locations are iear a residence),

schools (Location 23),

and in one or two areas t serve as control tations 10-20 miles listant from the site Locations 39 and 40 in Figure 5).

See Figure 3)

Surface Ground One sample upstream (Location MUSH on Figure 3) and one sample downstream (Location DC 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, and D-65 on Figure 3); Control sample at a location hydrologically up gradient of the site (Location B-12 on Figure 3).

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 14 of 34

TABLE I (Cont.)

EXPOSURE PATHWAY/

SAMPLE NUMBER OF SAMPLES AND SAMPLE LOCATIONS SAMPLING AND 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 LW-40 on Figure 5); control sample from location upstream of the site (Location BW-15 on Figure 3).

One sample from the vicinity of Wolf Creek Lake discharge cove; control sample from John Redmond Reservoir (Locations DC and JRR respectively on Figure 3).

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

Semiannual gamma isotopic analysis INGESTION (See Figures 4 & 5)

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

Semimonthly April to November; monthly December-March Gamma isotopic analysis and 1-131 analysis of each sample 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 15 of 34

TABLE 1 (Cont.)

EXPOSURE PATHWAY/

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

Fish Indicator samples of 1 to 3 recreationally important species from Wolf Creek Lake; control samples of similar species from John Redmond Reservoir spillway (Figure 4).

Semiannually Gamma isotopic analysis on edible portions Broadleaf Vegetation Irrigated Crops Samples of available broadleaf vegetation from two indicator locations with highest calculated annual average D/Q (Locations G-1 and A-2 and alternate location L-1);

sample of similar broadleaf vegetation from a control location 9.5 to 18.5 miles distant in the lowest ranked D/Q sector (Location D-1 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).

Monthly when available At time of harvest Gamma isotopic analysis on edible portions Gamma isotopic analysis on edible portions 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 16 of 34

TABLE 2 SAMPLE LOCATION NUMBERS, DISTANCES (Miles) AND DIRECTIONS Location Distance/

Location Distance/

Location Number Distance/

Number Direction Number Direction Direction Air Particulates and Radioiodine 2

2.7/N 18 3.0/SSE 32 3.2/WNW 37 2.1/NNW 40

>15.0/WNW 48 14.7/ENE TLDs 1

1.4/N 17 3.6/SE 33 3.7/WNW 2

2.7/N 18 3.0/SSE 34 4.0/NW 3

3.0/NNE 19 4.0/SSE 35 4.6/NNW 4

4.0/NNE 20 3.3/S 36 4.2/N 5

4.0/NE 21 3.8/S 37 2.1/NNW 6

4.4/ENE 22 4.1/SSW 38 1.2/NW 7

1.9/NE 23 4.5/SW 39 13.0/N 8

1.6/NNE 24 4.1/WSW 40

>15.0/WNW 9

2.0/ENE 25 3.6/W 41 0.8/NNW 10 2.4/ENE 26 2.6/WSW 42 0.8/SSE 11 1.6/E 27 2.1/SW 43 0.8/WNW 12 1.8/ESE 28 2.8/SW 44 3.0/NNW 13 1.5/SE 29 2.6/SSW 45 1.6/WNW 14 2.6/SE 30 2.2/W 46 1.5/WNW 15 4.5/ESE 31 3.0/WNW 47 0.16/S 1 6 4.2E 32 3.2/WNW 4 8 14.7/ENE Ground water Drinking water Surface water B-12 2.2/NNE BW-15 3.9/SW MUSH 3.6/W C-10 2.8/W LW-40

>10.0/SSE DC 0.6/WNW C-49/L-49 2.9/SW NF-DW

>15.0/SSE SP 2.9/S D-65 3.9/S Deer Broadleaf vegetation Crops B1.1 1.1/NNE A-2 4.9/N NR-D1 9.2/S D-1 14.7/ENE NR-D2

>10.0/S G-1 1.6/SE NR-U1 4.2/SW L-1 2.6/SW l S-4

>15.0/WNW Fish Shoreline Sediment Aquatic Vegetation WCL 0.6/WNW DC 0.6/WNW DC ALT 1.5/NW JRR 4.0/W EEA 3.0/NNW EEA 3.0/NNW JRR 4.0/W MUDS 1.5/WNW l MUDS 1.5/WNW J

Terrestrial Vegetation & Soil Bottom Sediment EEA 3.0/NNW DC 0.6/WNW MUDS 1.5/WNW JRR 4.01W 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 17 of 34

TABLE 3 First and Second Quarter TLD Results (mR/90 day qtr)

First Quarter Second Quarter Location Days 90 Day Avg.

2 std dev ll Location Days 90 Day Avg.

2 std dev ]

1 80.2 21.9 40 1

109.9 202 09 2

80.1 20.6 1.8 2

109.9 18.8 1.2 3

80.1 20.4 0.5 3

111.8 19.4 0.9 4

80.1 21.6 1.2 4

111.8 20.0 1.3 5

80.1 19.7 1.6 5

111.8 18.7 1.0 6

80.1 22.4 25 6

111.8 18.7 1.5 7

80.1 20.5 3.9 7

110.8 18.6 1.0 8

80.1 22.3 1.8 8

110.9 20.0 1.2 9

80.1 19.6 1.2 9

1109 18.0 1.3 10 80.1 22.7 3.1 10 110.0 198 0.8 11 80.1 24.1 3.5 11 1100 20.7 1.5 12 80.1 23.6 1.6 12 1109 19.4 1.2 13 80.1 22.6 1.4 13 110.9 20.7 0.9 14 80.1 21.3 2.0 14 110.8 20.0 1.4 15 80.1 23.2 9.3 15 111.8 21.6 5.2 16 80.1 21.0 0.7 16 111.8 20.5 1.7 17 80.1 20.8 1.5 17 110.8 20.0 2.0 18 80.1 20.3 1.9 18 110.0 19.1 1.1 19 80.9 21.1 1.4 19 109.1 24.3 3.1 20 80.9 20.5 0.7 20 109.2 20.5 1.2 21 80.9 17.5 0.4 21 109.1 19.4 0.9 22 80.9 19.9 1.1 22 109.1 20.0 1.5 23 80.9 19.8 1.3 23 109.1 23.0 1.9 24 80.9 19.5 1.7 24 109.1 20.7 2.2 25 80.9 17.9 0.9 25 109.1 17.9 1.2 26 81.0 18.6 1.1 26 109.8 18.2 1.1 27 81.0 19.9 0.9 27 109.0 19.9 0.8 28 81.0 17.5 1.2 28 109.0 18.2 0.8 29 81.0 16.8 1.2 29 109.0 16.9 1.1 30 81.1 20.4 1.1 30 109.8 20.1 1.3 31 80.9 19.2 1.2 31 109.1 19.3 1.8 32 80.9 18.7 1.1 32 109.1 18.5 0.8 33 80.9 20.8 0.9 33 109.1 20.7 1.1 34 80.8 20.4 1.0 34 110.0 19.8 1.8 35 80.1 20.0 1.3 35 109.9 19.6 1.0 36 80.1 19.8 1.2 36 109.9 20.1 1.3 37 80.2 19.3 1.0 37 109.9 18.6 0.7 38 80.2 21.1 1.5 38 109.9 22.8 4.9 39 80.8 19.2 1.0 39 110.0 18.8 1.2 40 80.8 17.1 1.0 40 110.0 18.4 1.5 41 80.2 21.1 0.9 41 109.9 20.0 1.4 42 80.0 14.7 0.6 42 111.9 14.3 1.2 43 80.0 14.1 0.9 43 111.9 13.2 0.7 44 80.2 20.0 1.5 44 109.9 19.4 1.6 45 81.1 20.9 0.9 45 109.8 20.7 0.5 46 81.1 20.2 1.6 46 109.8 18.9 1.5 47 80.0 23.0 1.8 47 111.8 24.9 0.3 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 18 of 34

TABLE 3 (Cont.)

Fourth Quarter TLD Results Third and (mR/90 day qtr)

Third Quarter Fourth Quarter Location Days 90 Day Avg.

2 std dev Location Days 90 Day Avg.

2 std dev 1

90.0 22.5 1.4 1

93.2 21.0 1.4 2

91.0 20.9 1.2 2

92.0 19.8 1.1 3

89.1 21.6 1.1 3

93.0 20.3 1.0 4

89.1 22.5 1.5 4

93.0 20.7 1.0 5

89.1 20.9 1.5 5

93.0 19.6 1.4 6

89.1 20.4 0.7 6

92.9 19.2 0.7 7

89.0 20.9 0.9 7

93 2 19.4 0.8 8

89.0 22.2 0.6 8

93.2 20 9 1.0 9

89.0 19 8 1.1 9

93.2 18.8 1.1 10 89.8 21.8 0.9 10 94.0 20.5 1.4 11 89.8 22.9 1.0 11 93.1 21.6 1.2 12 89.1 21.9 1.3 12 93.1 20.6 1.2 13 89.1 22.4 1.5 13 93.1 21.2 0.7 14 89.1 22.1 1.0 14 93.0 21.0 1.1 15 89.1 21.7 1.7 15 92.9 20.5 1.2 16 89.1 21.4 2.0 16 92.9 20.9 1.6 17 89.1 21.4 1.5 17 93.0 21.2 0.5 18 90.0 21.0 0.9 18 93.0 22.1 2.9 19 90.0 21.7 1.2 19 93.9 22.5 3.6 20 90.0 21.9 1.1 20 93.9 21.5 1.4 21 90.0 18.6 1.2 21 93.9 19.1 1.4 22 91.0 21.8 1.6 22 92.9 22.5 2.9 23 91.0 20.4 0.7 23 92.9 20.9 2.3 24 91.0 20.9 1.4 24 92.9 21.0 1.8 25 91.0 19.5 2.5 25 92.9 19.7 1.2 26 90.2 20.7 1.7 26 92.9 19.8 0.9 27 91.0 21.1 1.3 27 92.9 20.7 0.6 28 91.0 18.9 1.3 28 92.9 18.3 1.2 29 91.0 17.7 1.4 29 92.9 17.5 0 8 30 90.2 21.4 1.5 30 92.9 21.3 1.2 31 91.0 20.3 1.8 31 91.9 20.2 1.0 32 91.0 19.8 1.5 32 91.9 20.1 1.0 33 91.0 22.4 1.4 33 92.9 21.6 0.9 34 90 2 22.3 1.5 34 92.9 21.5 1.3 35 91.0 21.4 1.0 35 92.2 21.9 1.8 36 91.0 20.8 1.5 36 92.2 20.9 1.5 37 91.0 20.0 1.9 37 92.0 20.3 1.6 38 91.0 22.4 1.8 38 92.0 21.3 1.4 39 90.0 20.4 0.8 39 92.2 20.3 0.6 40 90.0 18.2 0.7 40 92.1 18.0 1.3 41 90.0 21.8 1.7 41 93.2 21.7 1.5 42 87.9 15.1 1.0 42 93.2 16.7 4.0 43 87.9 14.4 1.1 43 93.2 14.5 0.8 44 91.1 22.1 1.6 44 91.9 22.2 3.7 45 90.2 22.4 1.2 45 92.9 21.8 0.7 46 90.2 20.4 1.5 46 92.9 20.2 1.5 47 88.1 27.7 3.2 47 93.2 22.4 1.5 48 92 2 20.6 1.6 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 19 of 34

TABLE 4 2002 Land Use Census Data Location of Nearest:

Sector Residence Milking Animals Broadleaf Garden A

A2.60-17TE1520 None A4.91-OXRD1940 B

B3.53-QURD1755 None B3.53-QURD1755 C

C1.92-16RD1655 None C3.58-RERD1675 D

D2.03-QULA1571 None D3.10-16RD1829 E

E1.77-QULA1485 None E4.40-TRRD1551 F

F1.57-14RD1711 None F2.44-RERD1391 G

G1.56-QURD1384 None Gi.56-QURD1384 H

H3.09-12RD1711 None H3.30-QURD1 175 J

J3.70-11 RD1540 None J3.80-11RD1535 K

K2.70-12LA1439 None K4.1-NARD1120 L

L2.10-NARD 1339 None L2.83-NARD1250 M

M2.47-14RD1322 None M3.00-13LA1290 N

N1.71-NARD1441 None N2.38-RRDR9 P

P2.76-HW751534 None P4.70-KARD1675 Q

Q1.36-NALA1574 None None R

R2.08-NALN 1650 None None Locations are identified based upon the following protocol:

EXAMPLE:

A1.40-16RD 1525 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, 1.40 miles from the reactor, at 1525 16th Road.

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 20 of 34

TABLE 5 Comparison of 2001 and 2002 Land Use Census Milk and Garden Data 2001 CLOSEST 2002 CLOSEST 2001 2002 GARDEN GARDEN DIQ SECTOR MILKING MILKING PRODUCING PRODUCING RANKING ANIMALS ANIMALS BROADLEAF BROADLEAF VEGETATION VEGETATION A

None None None A4.91-OXRD1940 4

B None None B3.6-QURD1755 B3.53-QURD1755 7

C None None C1.9-16RD1655 C3.58-RERD1675 13 D

None None D3.2-RERD1601 D3.10-16RD1829 12 E

None None None E4.40-TRRD1551 14 F

None None F2.5-RERD1391 F2.44-RERD1391 5

G None None G1.6-QURD1384 Gl.56-QURD1384 1

H None None H3.5-QURD1175 H3.30-QURD1175 3

J None None J3.8-11RD1531 J3.80-11RD1535 10 K

None None K4.1-NARD1120 K4.1-NARD1120 9

L None None L2.6-NARD1309 L2.83-NARD1250 8

M None None M3-13LA1 290 M3.00-13LA1 290 6

N None None None N2.38-RRDR9 2

P None None P3.4-16RD1198 P4.70-KARD1675 11 Q

None None None None R

None None None None NOTE: Entries underlined indicate changes from the 2001 Land Use Census.

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 21 of 34

TABLE 6 Dosimetry Performance Testing Results NATIONAL VOLUNTARY LABORATORY ACCREDITATION PROGRAM PERSONNEL DOSIMETRY PERFORMANCE TESTING

SUMMARY

OF STATISTICAL RESULTS PROCESSOR NAME:

DETROIT EDISON COI PROCESSOR CODE:

100529 B DOSIMETER DESCRIPTION:

PANASONIC UD-802A!

TEST RESULTS FOR QUARTER:

200204 TESTING STATUS:

RENEWAL TYPE OF DOSIMETER:

WHOLE BODY REPORT PRINTED:

16 January 2003 IMPANY 3/ISA 820 SHALLOW DEPTH DEEP DEPTH CATEGORY B

S IBI+S L

I B

S IBI+S L

IA NOT TESTED lB IC IIA IIB liC IID IIIA IIIB IIIC IVA IVB IVC V

VI-TOTAL VI-NEUTRON NOT TESTED NOT TESTED

-0.076 0.053 0.129 0.40 NOT TESTED NOT TESTED NOT TESTED

-0.027 0.090 0.117 0.40 NOT TESTED NOT TESTED 0.011 0.056 0.067 0.40 NOT TESTED NOT TESTED

-0.044 0.107 0.151 0.40 NOT TESTED NOT TESTED

-0.006 0.046 0.052 0.30 NOT TESTED NOT TESTED

-0.048 0.082 0.130 0.40 NOT TESTED NOT TESTED NOT TESTED NOT TESTED NOT TESTED NOT TESTED 0.017 0.081 0.098 0.40 NOT TESTED NOT TESTED 0.002 0.148 0.149 0.40

-0.033 0.041 0.074 0.40 0.016 0.181 0.197 0.40 B = Bias S = Standard Deviation L = Limit The laboratory successfully completed ANSI N13.11(2001)/NVLAP testing in categories IA, IIA, IIIA, IVA, VA and VIC.

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 22 of 34

FIGURE 1 AIRBORNE PATHWAY SAMPLING LOCATIONS

• = AIRBORNE PARTICULATE AND RADIOIODINE 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 23 of 34

FIGURE 2 DIRECT RADIATION PATHWAY SAMPLING

=

TLD LOCATIONS 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station LOCATIONS Page 24 of 34

FIGURE 3 WATERBORNE PATHWAY SAMPLING LOCATIONS

= DRINKING WATER

• = GROUND WATER

• = BOTTOM SEDIMENT A = SURFACE WATER

• = SHORELINE SEDIMENT v

= AQUATIC VEGETATION 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 25 of 34

FIGURE 4 INGESTION PATHWAY SAMPLING LOCATIONS A = FISH (JRR)

= BROADLEAF VEGETATION / IRRIGATED CROPS

= FISH (WOCL)

= TERRESTRIAL VEGETATION AND SOIL V

= DEER 2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station Page 26 of 34

FIGURE 5 A

J

• NW-H DISTANT SAMPLING LOCATIONS w = DRINKING WATER LED

• - AIRBORNE PARICULATE & RADIOIODINE 0

2002 Annual Radiological Environmental Operating Report Wolf Creek Generating Station

= BROADLEAF VEGETAWION IRRIGATED CROPS Page 27 of 34

CHART 1 2002 Airborne Gross Beta Weekly Results 0.060 0.050 C.,

-oa)E 0.040 0.

m 0.020 Ca C')

2 0 0.010 0.000 A

A A

A

+

A

'h

+F

+

0 4

8 12 16 20 24 28 Week Number 32 36 40 44 48 52 1 o Location 2

• Location 18

+ Location 32 A Location 37 -x-Location 40 X Location 48l 2002 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 28 of 34

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

a)

E C.)

0

.0 0.

ai)

.Cm C')

0 L.

(9 CN

50 ci 0

E C,,

CP q

Oj N

Oj

(:b CP q

( O O

t~~

N N

(Z~

I N~

q~

,\\T

,\\T

-mSmoothed Average Control Location (40)

- - - Smoothed Average Indicator Locations I

2002 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 29 of 34

CHART 3 TLD Nearsite Locations and Control Locations 22.0 20.0 18.0 E

16.0 14.0 12.0 1

1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 o

Avg. of Nearsite Locations

& Avg. of Control Locations Moving Avg. of Nearsite Locations

- - - Moving Avg. of Control Locations 2002 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 30 of 34

CHART 4 Wolf Creek Lake Surface Water Smoothed Tritium Data 17000 15000 13000 1_wi C-)

0L 11000 9000 7000 5000 3000 U) (0 CD '- I-I-

O) O)

MJ O O C0 N N N CM M "I 'I-t M

tO tg Mo l-s r-00- 00 ) M M O O N N

CD W cn ) oM r, a Or-aM M M a

M O O a) oM ta Mt-(O CD r-a), a), aW W M aW M M (O 'I cMOOoo N

N N N N

N N

M 00 CD "T N

M N M O -

M -

M N rl N

a O n-

-tT M N M

o CD ooooooooo-oooooooooooooooooooooo~ E~I I~3

~-

-Smoothed DC (avg of 10)

Logarithmic Trendline 2002 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 31 of 34

CHART 5 Drinking Water Gross Beta, Historical 50 40 a)

C-

. _CU a) m cn 0

17(9 30 20 10 0

t O

to

-D r CD

0) 0 N

M M

U M

o r- -

M M

o O

O C' J oC oD C

O 0D CO CO CO Co O

CO C 0 )

0 ) 0 )

0 )

0 )

0 )

0 )

00) 0)0 0

0 CD 0

0 O

a)

O

')

a 0

C D a

CD 0

a CO D

CD CO O

a 0

CD CD C-CO oo 0

D M

LO M

0 N

M M

In

-)

M M

"i Ni 0

M "gr t

t 00 Co o o o o o o o o o 0

0 0

0 0

o o

o o

o o

l.--

BW15 (Control)

LW40 (Indicator) I 2002 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 32 of 34

CHART 6 Detected Cs-137 Activity in Bottom Sediment 1000 900 800 700 C0-,

0~

600 500 400 300 200 100 0

A Ib ' 9 CP9?~CP.

0 0,' CC S~b00 AO(&\\rl I

DC Cs-137 JRR Cs-137 -Polynomial Trendline (DC) -

Polynomial Trendline (JRR) I 2002 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 33 of 34

CHART 7 Tritium Dose in WCL Surface Water and Released Liquid Tritium Maximum Organ Dose 0.800 -

0.700

- REMP DOSE MAX ORGAN DOSE (RELEASED) 0.600 aE 0.500 C,,0--<

SJi O 0.400 D

zz 0.300 0.200 -

0.100 0.000 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 200 YEAR 0 2001 2002 2002 Annual Radiological Environmental Operating Report - Wolf Creek Generating Station Page 34 of 34

-a Environmental, Inc.

Mdwest Laboratory an Alegheny Technodoges Co 7?OLaldw"r Road.Wthbmok IL 600C22 (847) 540700 fax84?)58644517 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. 2002 through December, 2002

Appendix A Interlaboratory Comparison Program Results Environmental, Inc., Midwest Laboratory, formerly Teledyne Brown Engineering Environmental Services 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 (e.g., milk or water) 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 were obtained for Thermoluminescent Dosimeters (TLDs), via International Intercomparison of Environmental Dosimeters under the sponsorships listed in Table A-2. Results of internal laboratory testing is also listed.

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. 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.

The results in Table A-7 were obtained through participation in the Environmental Measurement Laboratory Quality Assessment Program.

Attachment A lists acceptance criteria for 'spiked" samples.

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

Al

Attachment A ACCEPTANCE CRITERIA FOR 'SPIKED" SAMPLES LABORATORY PRECISION: ONE STANDARD DEVIATION VALUES FOR VARIOUS ANALYSES2 One standard deviation Analysis Level for single determination Gamma Emitters 5 to 100 pCi/liter or kg 5.0 pCi/liter

> 100 pCi/liter or kg 5% of known value Strontium_89b 5 to 50 pCi/liter or kg 5.0 pCi/liter

> 50 pCi/liter or kg 10% of known value Strontium-9Ob Potassium-40 Gross alpha Gross beta Tritium Radium-226,-228 Plutonium lodine-1 31, Iodine-29b Uranium-238, Nickel-63b Technetium_99b Iron-55b 2 to 30 pCi/liter or kg

> 30 pCi/liter or kg

> 0.1 g/liter or kg 20 pCi/liter

> 20 pCi/liter 1 00 pCi/liter

> 100 pCi/liter 4,000 pCi/liter

> 4,000 pCi/liter 0.1 pCi/liter 0.1 pCi/liter, gram, or sample 55 pCi/liter

> 55 pCi/liter 35 pCi/liter

> 35 pCi/liter 50 to 100 pCi/liter

> 100 pCi/liter 5.0 pCi/liter 10% of known value 5% of known value 5.0 pCi/liter 25% of known value 5.0 pCi/lAter 5% of known value 1 s = (pCi/liter) =

169.85 x (known)00933 10% of known value 15% of known value 10% of known value 6.0 pCi/liter 10% of known value 6.0 pCi/liter 15% of known value 10 pCi/liter 10% of known value Othersb 20% of known value

' From EPA publication, 'Environmental Radioactivity Laboratory Intercomparison Studies Program, Fiscal Year, 1981-1982, EPA-600/4-81-004.

b Laboratory limit.

A2

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

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Resultb Result' Limits STW-940 STW-940 STW-942 STW-942 STW-944 STW-944 STW-944 STW-944 STW-944 STW-944 STW-944 STW-944 STW-951 STW-951 STW-951 STW-951 STW-952 STW-952 STW-952 STW-952 STW-952 STW-952 STW-953 STW-954 STW-965 STW-965 STW-965 STW-965 S1W-965 STW-965 STW-965 STW-965 STW-965 STW-965 STW-965 STW-965 STW-966 STW-966 STW-967 STW-968 STW-968 STW-968 STW-969 02/20102 02/20102 02/20/02 02/20/02 02/20/02 02120/02 02120102 02/20102 02/20/02 02/20/02 02/20/02 02120/02 05/22/02 05/22102 05/22/02 05/22/02 05/22/02 05/22/02 05/22/02 05122/02 05/22/02 05/22/02 05/22/02 05/22/02 08/21/02 08/21/02 08/21/02 08/21/02 08/21/02 08/21/02 08/21/02 08/21/02 08/21/02 08/21/02 08/21/02 08/21/02 11/20/02 11/20/02 11/20/02 11/20/02 11/20/02 11/20/02 11/20/02 Sr-89 Sr-90 Gr. Alpha Gr. Beta Ba-133 Co-60 Cs-134 Cs-1 37 Ra-226 Ra-228 Uranium Zn-65 Gr. Alpha Ra-226 Ra-228 Uranium Co-60 Cs-1 34 Cs-137 Gr. Beta Sr-89 Sr-90 H-3 1-131 Ba-133 Co-60 Cs-1 34e Cs-1 37 Gr. Alpha Gr. Beta Ra-226 Ra-228 Sr-89 Sr-90 Uranium Zn-65 Gr. Alpha Gr. Beta H-3 Ra-226 Ra-228 Uranium 1-131 53.0 + 2.5 16.6 +/- 0.5 6.5 +/- 0.6 45.7 +/- 3.1 25.8 +/- 1.5 76.9 +/- 2.7 38.7 +/- 1.6 92.9 +/- 2.7 15.3 +/- 0.7 17.5 +/- 0.4 23.8 +/-1.1 361.0 +/- 9.2 23.9 + 2.5 5.9 +/- 0.5 5.6 +/- 0.9 7.6 +/- 0.2 37.9 +/- 0.7 14.5 +/- 0.8 50.0 +/- 2.0 171.0 +/- 2.5 28.4 +/- 4.8 32.4 +/- 3.1 13900.0 +/- 100.0 14.6 +/- 0.3 71.9 +/- 2.1 23.8 + 1.0 62.9 +/- 1.2 219.3 +/- 10.7 74.4 +/- 0.6 26.7 +/- 0.4 5.0 +/- 0.5 6.0 +/- 0.7 28.4 +/- 1.5 36.5 +/- 1.1 4.1 +/- 0.1 92.4 +/- 2.2 9.3 +/- 0.4 44.7 +/- 1.0 10100.0 +/- 38.7 11.6 +/-0.1 16.0 +/- 1.4 15.5 +/- 0.5 6.0 +/- 0.4 55.3 +/- 5.0 15.9 +/- 5.0 8.0 +/- 5.0 48.3 +/- 5.0 28.9 +/- 5.0 73.4 +/- 5.0 42.1 +/- 5.0 88.8 +/- 5.0 14.3 +/-2.2 16.9 +/-4.2 28.3 +/- 3.0 359.0 +/- 35.9 22.8 +/- 5.7 6.1 +/- 0.9 4.5 +/- 1.1 9.3 +/- 3.0 39.1 +/- 5.0 17.1 +/-5.0 52.1 +/-5.0 189.0 +/- 28.4 31.7 +/-5.0 28.3 +/- 5.0 17400.0 +/- 1740.0 14.7 +/-2.0 80.0 +/- 8.0 23.3 +/- 5.0 71.7 +/- 5.0 214.0 +/- 10.7 58.8 +/- 14.7 21.9 +/- 2.2 5.0 +/- 0.8 4.7 +/- 1.2 29.0 +/- 5.0 36.4 +/- 5.0 5.0 +/- 3.0 95.7 +/- 9.6 12.2 +/- 5.0 47.0 +/- 5.0 10200.0 +/- 1020.0 12.1 +/- 1.8 15.1 +/-3.8 19.2 +/- 3.0 6.8 +/- 2.0 46.6 - 64.0 7.2 - 24.6 0.0 - 16.7 39.6 - 57.0 20.2 - 37.6 64.7 - 82.1 33.4 - 50.8 80.1 - 97.5 10.6 - 18.0 9.6 - 24.2 23.1 - 33.5 298.0 - 420.0 13.0 - 32.6 4.5 - 7.7 2.6 - 6.5 4.1 - 14.5 30.4 - 47.8 8.4 - 25.8 43.4 - 60.8 140.0 - 238.0 23.0 - 40.4 19.6 - 37.0 14400.0 - 20400.0 11.2 - 18.2 66.4 - 93.6 14.6 - 32.0 63.0 - 80.4 195.0 - 233.0 33.5 - 84.1 13.2 - 30.6 3.7 - 6.3 2.7 - 6.7 20.3 - 37.7 27.7 - 45.1 0.0 - 10.2 79.4 - 112.0 3.5 -209 38.3 - 55.7 8440.0 - 12000.0 9.0 - 15.2 8.6 - 21.6 14.0 - 24.4 3.3 - 10.2 Al-I

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

Concentration (pCi/L)

Lab Code Date Analysis Laboratory ERA Control Result`

Resultc Limits STW-970 11/20/02 Co-60 104.0 +/-7.1 104.0 +/-5.2 95.0 -113.0 STW-970 11/20/02 Cs-1 34 48.2 +/- 2.3 55.5 +/- 5.0 46.8 - 64.2 STW-970 11/20/02 Cs-1 37 109.0 +/- 12.6 117.0 +/- 5.9 107.0 - 127.0 STW-970 11/20/02 Gr. Beta 252.0 +/- 26.8 288.0 +/- 49.5 244.0 -416.0 STW-970 11/20/02 Sr-89 43.2 +/- 0.7 47.6 +/- 5.0 38.9 - 56.3 STW-970 11120/02 Sr-90 7.5 +/- 0.2 7.6 +/- 5.0 0.0 - 16.2 STW-971 11/20/02 Gr. Alpha 74.9 +/- 1.5 103.0 +/- 25.8 58.4 - 148.0 STW-971 11/20/02 Ra-226 8.9 +/- 0.0 9.1 +/- 1.4 6.7 - 11.5 STW-971 11/20/02 Ra-228 15.3 +/-0.1 17.8 +/-4.5 10.1 -25.5 STW-971 11/20102 Uranium 51.7 +/- 1.6 61.7 +/- 6.2 51.0 - 72.4

• Results obtained by Environmental. Inc., Midwest Laboratory as a participant in the environmental samples crosscheck program operated by Environmental Resources Associates (ERA).

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

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

d Analysis was repeated; result of reanalysis: 16114+/-487 pCVlL.

' ERA acknowledged an unacceptably high percentage of failure for Cs-134 and questioned its own control limits.

No problems were identified in the analysis.

A1-2

TABLE A-2. Crosscheck program results; Thermoluminescent Dosimetry, (TLDs).

mR Lab Code TLD Type Date Measurement Known Lab Result Control Value

+/- 2 sigma Limits Environmental, Inc.

2001-1 2001-1 2001-1 2001 -1 2001 -1 2001-1 2001-1 2001-1 CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards 12/2412001 12/24/2001 12/24/2001 12/2412001 12/24/2001 12/24/2001 12/2412001 12/24/2001 5/28/2002 5/28/2002 5/28/2002 5/28/2002 5/28/2002 5/28/2002 5/28/2002 Reader 1, #1 Reader 1,#1 Reader 1, #2 Reader 1,#2 Reader 1, #3 Reader 1, #3 Reader 1, #4 Reader 1, #4 Reader 1, #1 Reader 1, #1 Reader 1, #2 Reader 1, #2 Reader 1, #3 Reader 1, #3 Reader 1, #4 Reader 1, #4 3.98 3.98 7.07 7.07 15.9 15.9 63.61 63.61 4.84 4.84 8.60 8.60 19.34 19.34 77.36 77.36 3.71 +/- 0.12 3.38 i 0.09 7.89 +/- 0.18 7.64 i 0.25 18.62 i 0.40 19.58 +/-0.12 78.24 +/- 1.23 79.89 i 2.47 4.44 +/- 0.16 4.37 +/- 0.20 9.08 +/- 0.14 8.76 +/- 0.16 22.14 +/- 0.27 24.03 +/- 0.30 92.77 +/- 0.58 85.25 +/- 0.37 2.79 - 5.17 2.79 - 5.17 4.95 - 9.19 4.95 - 9.19 11.13 - 20.67 11.13 - 20.67 44.53 - 82.69 44.53 - 82.69 3.39 - 6.29 3.39 - 6.29 6.02 - 11.18 6.02 - 11.18 13.54 - 25.14 13.54 - 25.14 54.15 - 100.57 54.15 - 100.57 Environmental. Inc.

2002-1 CaSO4: Dy Cards 2002-1 CaSO4: Dy Cards 2002-1 CaSO4: Dy Cards 2002-1 CaSO4: Dy Cards 2002-1 CaSO4: Dy Cards 2002-1 CaSO4: Dy Cards 2002-1 CaSO4: Dy Cards 2002-1 CaSO4: Dy Cards 5/28/2002 Environmental. Inc.

2002-2 CaSO4: Dy Cards 2002-2 CaSO4: Dy Cards 12/13/2002 12/13/2002 Reader 1,30 Reader 1,45a 56.73 25.21 71.61 +/- 1.79 33 49 +/- 1.38 39.71 - 73.75 17.65 - 32.77 a Precision of the distance (cm) measurement can significantly increase the error. The placement of the card holder on the table could account for the higher error.

2002-2 2002-2 2002-2 2002-2 2002-2 2002-2 CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards CaSO4: Dy Cards 12/13/2002 12/13/2002 12/13/2002 12/13/2002 12/13/2002 12/13/2002 Reader 1,60 Reader 1,75 Reader 1,90 Reader 1,120 Reader 1,135 Reader 1,150 14.18 9.08 6.30 3.55 2.80 2.28 17.37 +/- 1.24 10.65 +/- 1.02 6.37 +/- 0.54 4.60 +/- 0.41 2.51 +/- 0.23 2.22 +/- 0.28 9.93 - 18.43 6.36 - 11.80 4.41 - 8.19 2.49 - 4.62 1.96 - 3.64 1.60 - 2.96 c Control limits are based on Attachment A, Page A2 of this report.

A2-1

TABLE A-3. In-House "Spike" Samples Concentration (pCUL)a Lab Code Sample Date Analysis Laboratory results Known Control Type 2s, n==1b Activity Limitsc SPW-11552 Water SPW-1 1552 Water SPMI-595 SPMI-595 SPMI-597 SPMI-597 SPMI-597 SPAP-594 SPW-599 SPMI-1446 SPW-1446 SPW-1446 SPMI-1448 SPVE-1444 SPAP-2078 SPW-2080 SPF-2082 SPF-2082 SPMI-2084 SPMI-2084 SPMI-2084 SPMI-2084 SPMI-2084 SPW-2115 SPW-2116 SPW-2116 SPW-2116 SPW-2116 SPW-2116 SPW-2019 SPW-2019 SPCH-3064 SPW-4682 SPAP-4685 W-71702S W-71702S W-71702S SPVE-4910 W-72302S W-80102S W-80102S W-80202S SPW-7188 SPW-7190 Milk Milk Milk Milk Milk Air Filter Water Milk Water Water Milk Vegetation Air Filter Water Fish Fish Milk Milk Milk Milk Milk Water Water Water Water Water Water Water Water Charcoal Water Air Filter Water Water Water Vegetation Water Water Water Water Water Water 1m7/2002 117/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 216/2002 2/19/2002 3/8/2002 3/8/2002 3/8/2002 3/8/2002 3/11/2002 4/8/2002 4/5/2002 4/5/2002 4/5/2002 4/8/2002 4/8/2002 4/8/2002 4/812002 4/8/2002 4/8/2002 4/8/2002 4/8/2002 4/8/2002 4/8/2002 4/8/2002 513/2002 513/2002 5/11/2002 7/17/2002 7/17/2002 7/17/2002 07/17/02 07/17(02 07/22/02 07/23/02 08/01/02 08/01/02 08/02/02 10/25/02 10/25/02 Gr. Alpha Gr. Beta Cs-1 34 Cs-1 37 Co-60 Cs-1 34 Cs-1 37 Gr. Beta H-3 1-131(G) 1-131 1-131 (G) 1-131 1-131 (G)

Gr. Beta H-3 Cs-134 Cs-1 37 Cs-134 Cs-1 37 1-131 1-131 (G)

Sr-90 1-131 Co-60 Cs-1 34 Cs-137 1-131(G)

Sr-90 Gr. Alpha Gr. Beta 1-131(G)

H-3 Gr. Beta Fe-55 H-3 Ni-63 Sr-90 Sr-90 Gr. Alpha Gr. Beta Tc-99 Fe-55 Ni-63 35.33 +/- 1.83 112.62 +/- 2.44 29.63 +/- 4.98 51.31 +/- 7.55 44.18 +/- 7.76 20.15 +/- 5.08 54.88 +/- 8.32 1.58 +/- 0.02 47607 +/- 595 87.84 +/- 11.47 82.98 +/- 1.20 92.75 +/- 12.87 88.00 +/- 1.13 0.39 +/- 0.04 1.43 +/- 0.01 49121 +/-608 0.83 +/- 0.04 1.29 +/- 0.07 20.93 +/- 5.82 51.83 +/- 10.23 87.72 +/- 1.28 84.08 +/- 10.75 62.81 +/- 1.99 82.42 +/- 1.27 32.47 +/- 5.78 30.80 +/- 3.60 53.85 +/- 7.07 79.09 +/- 7.58 70.35 +/- 2.32 25.89 +/- 1.71 101.19 +/- 2.37 0.74 +/- 0.04 40856 +/-548 1.58 +/- 0.02 10463.00 +/- 126.00 45779 +/- 583 17.02 +/- 1.50 10.22 +/- 0.80 21.43 +/- 0.97 41.25 +/- 4.58 113.66 +/- 5.30 16.39 +/- 0.72 20396 +/-265 227.18 +/- 11.60 34.57 107.70 27.10 50.89 41.36 22.59 50.89 1.55 50189 85.20 85.20 85.20 85.20 0.42 1.55 46912 0.83 1.35 24.69 50.56 88.37 88.37 66.85 88.37 33.09 28.80 50.56 88.37 66.85 34.57 107.70 0.85 46179 1.55 12200.60 46179 17.10 9.04 26.55 34.45 107.70 14.13 22778 170.80 17.29 - 51.86 96.93 - 118.47 17.10 - 37.10 40.89 - 60.89 31.36 - 51.36 12.59 - 32.59 40.89 - 60.89 0.00 - 11.55 40151 _ 60227 75.20 - 95.20 68.16 - 102.24 75.20 - 95.20 68.16 - 102.24 0.25 - 0.58 0.00 - 11.55 37530 _ 56294 0.50 - 1.16 0.81 - 1.89 14.69 - 34.69 40.56 - 60.56 70.70 - 106.04 78.37 - 98.37 53.48 - 80.22 70.70 - 106.04 23.09 - 43.09 18.80 - 38.80 40.56 - 60.56 78.37 - 98.37 53.48 - 80.22 17.29 - 51.86 96.93 - 118.47 0.51 - 1.18 36943 _ 55415 0.00 - 11.55 9760.48 - 14640.72 36943 _.55415 10.26 - 23.94 0.00 - 19.04 16.55 - 36.55 17.23 - 51.68 96.93 - 118.47 2.13 - 26.13 18222 -27334 102.48 - 239.12 A3-1

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

Lab Code Sample Date Analysis Laboratory results Known Control Type 2s, n= 1 b Activity Limitsc SPW-7192 Water 10/25/02 H-3 96310 +/- 871 90963 72770 -109156 SPW-7194 Water 10/25/02 C-14 42938 +/- 167 49661 29796 -69525 SPAP-7198 Air Filter 10/25/02 Gr. Beta 1.65 +/- 0.02 1.53 0.00 - 11.53 SPW-7335 Water 10/30/02 Co-60 39.67 +/- 7.38 37.05 27.05 - 47.05 SPW-7335 Water 10/30/02 Cs-134 33.09 +/- 5.96 34.11 24.11 -44.11 SPW-7335 Water 10/30/02 Cs-1 37 46.80 +/- 10.39 49.90 39.90 - 59.90 SPMI-7336 Milk 10/30/02 Cs-134 34.40 +/- 4.99 34.11 24.11 -44.11 SPMI-7336 Milk 10/30/02 Cs-1 37 46.52 +/- 8.52 49.91 39.91 - 59.91 SPF-7340 Fish 10/30/02 Cs-1 34 0.66 +/- 0.03 0.68 0.41 - 0.95 SPF-7340 Fish 10/30/02 Cs-1 37 1.35 +/- 0.05 1.33 0.80 - 1.86 SPS-8102 Sediment 11/01/02 Sr-90 14.69 +/- 0.67 13.45 3.45 -23.45 a Results are reported in units of pCi/L, except for air filters (pCi/Filter), food products, vegetation, soil, sediment (pCi/g).

b Results are based on single determinations.

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

NOTE: For fish, Jello is used for the Spike matrix. For Vegetation, cabbage is used for the Spike matrix.

A3-2

TABLE A-4. In-House "Blank" Samples Concentration (pCiIL)8 Lab Code Sample Date Analysis Laboratory results (4.66a)

Acceptance Type LLD Activityb Criteria (4.66 a)

SPW-11551 SPW-11551 SPAP-590 SPAP-590 SPAP-590 SPAP-590 SPMI-596 SPMI-596 SPMI-596 SPMI-596 SPW-598 SPW-598 SPW-598 SPW-600 SPMI-1447 SPVE-1443 SPW-1445 SPW-1445 SPW-1445 SPW-1445 SPW-1445 SPMI-1447 SPAP-2077 SPW-2079 SPF-2081 SPF-2081 SPMI-2083 SPMI-2083 SPMI-2083 SPMI-2083 SPW-2115 SPW-2115 SPW-2115 SPW-2115 SPW-2115 SPW-2115 SPW-2018 SPW-2018 SPch-3063 SPW-4683 W-71702 W-71702 W-71802B W-71802B water water Air Filter Air Filter Air Filter Air Filter Milk Milk Milk Milk water water water water Milk Vegetation water water water water water Milk Air Filter water Fish Fish Milk Milk Milk Milkc water water water water water water water water Charcoal water water water water water 17/2002 1/7/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 1/31/2002 3/7/2002 3/8/2002 3/8/2002 318/2002 3/8/2002 3/8/2002 3/8/2002 3/8/2002 4/8/2002 4/5/2002 4/5/2002 4/5/2002 4/8/2002 4/8/2002 4/8/2002 4/8/2002 4/8/2002 418/2002 4/8/2002 4/8/2002 4/8/2002 4/8/2002 4/22/2002 4/22/2002 5/11/2002 7/17/2002 7/17/2002 7/17/2002 7/18/2002 7/18/2002 Gr. Alpha Gr. Beta Co-60 Cs-134 Cs-137 Gr. Beta Co-60 Cs-134 Cs-137 K-40 Co-60 Cs-1 34 Cs-1 37 H-3 1-131(G) 1-131(G)

Co-60 Cs-1 34 Cs-137 1-131 1-131 (G) 1-131 Gr. Beta H-3 Cs-134 Cs-1 37 Cs-1 34 Cs-137 1-131 Sr-90 Co-60 Cs-1 34 Cs-137 1-131 1-131 (G)

Sr-9o Gr. Alpha Gr. Beta 1-131 (G)

H-3 Fe-55 Ni-63 Gr. Alpha Gr. Beta 0.47 1.37 1.78 3.42 2.33 0.74 3.54 3.24 3.89 0.45 +/- 0.39 0.55 +/- 1.03

-0.096 +/- 0.38 1472.1 +/- 101.50 2.30 3.74 3.23 138.80 7.63 0.02 2.76 2.87 4.34 OA5 6.50 0.31 0.32 134.17 7.67 9.54 2.90 3.03 0.52 0.48 1.49 2.09 3.78 0.50 3.30 0.66 0.56 1.38 8.27 129.00 33.61 2.56 0.48 1.33

-96.5 +/- 63.40 0.17 +/- 0.31 0.15 +/- 0.22

-0.055 +/- 0.19 16.13 +/- 67.39

-0.38 +/- 0.34 1.29 +/- 0.36

-0.16 +/- 0.33 0.10 +/- 0.32

-0.24 +/- 0.38 3.19 +/- 1.03

-62.8 +/- 60.30

-1.72 +/- 15.63 0.71 +/- 1.37 0.31 +/- 0.36 0.9 +/- 0.95 1

3.2 100 100 100 3.2 10 10 10 0

10 10 10 200 20 20 10 10 10 0.5 20 0.5 3.2 200 100 100 10 10 0.5 1

10 10 10 0.5 20 1

1 3.2 9.6 200 1000 20 1

3.2 A4-1

TABLE A-4. In-House "Blank Samples Concentration (pCi/L)3 Lab Code Sample Date Analysis Laboratory results (4.66a)

Acceptance Type LLD Activityb Criteria (4.66 cr)

W-72302 water 7/23/2002 Sr-90 0.27 0.027 +/- 0.13 1

W-80202 water 8/2/2002 Tc-99 0.34

-0.051 +/- 0.16 10 SPW-7189 water 10/25/2002 Fe-55 978.21 21.77 +/-595.33 1000 SPW-7191 water 10/25/2002 Ni-63 11.74 4.47 +/- 7.24 20 SPW-7193 water 10/25/2002 H-3 146.00

-92 +/- 65.00 200 SPAP-7199 Air Filter 10/25/2002 Gr. Beta 0.00

-0.0024 +/- 0.00 3.2 SPMI-7333 Milk 10/30/2002 Cs-134 5.30 10 SPMI-7333 Milk 10/30/2002 Cs-137 4.80 10 SPW-7334 water 10/30/2002 Co-60 3.69 10 SPW-7334 water 10/30/2002 Cs-134 5.37 10 SPW-7334 water 10/30/2002 Cs-137 3.90 10 SPF-7339 Fish 10/30/2002 Cs-134 4.69 100 SPF-7339 Fish 10/30/2002 Cs-1 37 11.18 100 a Liquid sample results are reported in pCi/Liter, air filters( pCi/filter), charcoal (pCi/charcoal canister), and solid samples (pCi/kg) b The activity reported Is the net activity result.

' 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)8 Averaged Lab Code Date Analysis First Result Second Result Result CF-20, 21 CF-20, 21 CF-20, 21 CF-20, 21 AP-11804,11805 AP-11825,11826 AP-11846,11847 WW-150, 151 MI-124,125 W-172,173 SW-11698,11699 SW-11698,11699 U-275, 276 LW-356, 357 LW-377, 378 SW-525, 526 SW-525, 526 DW-504, 505 MI-649, 650 DW-697, 698 DW-927, 928 W-973. 974 W-1673, 1674 SWT-1395,1396 MI-1268, 1269 MI-1268,1269 MI-1332,1333 MI-1332,1333 MI-1458,1459 DW-10100, 10101 DW-10111, 10112 MI-1521,1522 MI-1521, 1522 MI-1541, 1542 MI-1541,1542 LW-1651,1652 DW-10134, 10135 WW-1 694,1695 SO-1715,1716 SO-1715,1716 DW-10302.10303 W-1758,1759 W-1758,1759 1/2/2002 112/2002 1/2/2002 1/2/2002 112/2002 1/2/2002 1/2/2002 1/7/2002 1/8/2002 1/8/2002 1/8/2002 1/8/2002 1/10/2002 1/16/2002 1/16/2002 1/30/2002 1/30/2002 1/31/2002 2/5/2002 2/6/2002 2/8/2002 2/18/2002 2/25/2002 2/26/2002 2/27/2002 2/27/2002 3/5/2002 3/5/2002 3/6/2002 3/9/2002 3/9/2002 3/11/2002 3/11/2002 3/11/2002 3/11/2002 3/14/2002 3/16/2002 3/18/2002 3/19/2002 3/19/2002 3/20/2002 3/25/2002 3/25/2002 Be-7 Gr. Beta K-40 Sr-90 Be-7 Be-7 Be-7 Gr. Beta K-40 H-3 Gr. Alpha Gr. Beta Gr. Alpha Gr. Beta Gr. Beta Gr. Alpha Gr. Beta Gr. Alpha K-40 Gr. Beta Sr-90 Fe-55 H-3 Gr. Beta K-40 Sr-90 K-40 Sr-90 K-40 Gr. Alpha Gr. Alpha K-40 Sr-90 K-40 Sr-90 Gr. Beta Gr. Alpha Gr. Beta Cs-137 Gr. Beta Gr. Alpha Gr. Alpha Gr. Beta 0.47 i 0.25 7.82 +/- 0.20 6.65 +/- 0.55 0.01 +/- 0.01 0.054 +/- 0.011 0.053 +/- 0.013 0.054 +/- 0.018 1.26 +/- 0.50 1332.30 +/- 158.90 153.00 +/- 68.00 2.51 +/- 1.36 7.68 +/- 1.33 1.40 +/- 1.00 3.47 +/- 0.65 2.75 +/- 0.68 0.56 +/- 0.35 2.29 +/- 0.41 2.30 +/- 1.70 1319.40 +/- 176.70 5.10 +/- 1.20 0.69 +/- 0.29 7.29 +/- 0.97 2640.00 +/- 155.00 2.96 +/- 0.59 1460.50 +/- 162.50 0.77 +/- 0.36 1503.00 +/- 164.00 1.35 +/- 0.38 1411.70 +/- 166.70 4.10 +/- 1.70 7.10 +/- 2.00 1270.80 +/- 103.30 1.69 +/- 0.46 1562.20 +/- 122.80 0.85 +/- 0.57 2.90 +/- 0.57 5.60 +/- 1.90 1.79 +/- 0.59 0.03 +/- 0.01 18.50 +/- 1.70 2.30 +/- 1.40 2.50 +/- 0.70 4.10 +/- 1.20 0.37 +/- 0.12 7.95 +/- 0.21 6.53 +/- 0.36 0.01 +/- 0.01 0.049 +/- 0.019 0.043 +/- 0.013 0.048 +/- 0.016 1.04 +/- 0.46 1271.70 +/- 151.50 148.00 +/- 68.00 3.71 +/- 1.80 8.49 +/- 1.43 1.10 +/- 1.20 2.94 +/- 0.61 2.84 +/- 0.61 0.24 +/- 0.35 2.58 +/- 0.39 3.90 +/- 1.40 1210.80 +/- 118.20 4.70 +/- 1.20 0.71 +/- 0.29 6.86 +/- 0.94 2908.00 +/- 161.00 2.29 +/- 0.53 1573.00 +/- 168.00 0.95 +/- 0.40 1305.00 +/- 168.00 1.07 +/- 0.40 1390.00 +/- 172.30 1.80 +/- 1.60 8.30 +/- 2.30 1369.10 +/- 121.60 2.46 +/- 0.49 1529.30 +/- 126.10 1.48 +/- 0.43 2.57 +/- 0.56 5.40 +/- 1.60 1.53 +/- 0.50 0.02 +/- 0.01 19.10 +/- 1.70 3.30 + 1.60 2.30 +/- 0.60 2.50 +/- 1.10 0.42 +/- 0.14 7.89 +/- 0.14 6.59 +/- 0.33 0.01 +/- 0.00 0.052 +/- 0.011 0.048 +/- 0.009 0.051 +/- 0.012 1.15 +/- 0.34 1302.00 +/- 109.77 150.50 +/- 48.08 3.11 +/- 1.13 8.09 +/- 0.98 1.25 +/- 0.78 3.21 +/- 0.45 2.79 +/- 0.46 0.40 +/- 0.25 2.43 +/- 0.28 3.10 +/- 1.10 1265.10 +/- 106.29 4.90 +/- 0.85 0.70 +/- 0.21 7.08 +/- 0.68 2774.00 +/- 111.74 2.63 +/- 0.40 1516.75 +/- 116.87 0.86 +/- 0.27 1404.00 +/- 117.39 1.21 +/- 0.28 1400.85 +/- 119.87 2.95 +/- 1.17 7.70 +/- 1.52 1319.95 +/- 79.78 2.07 +/- 0.34 1545.75 +/- 88.01 1.16 +/- 0.36 2.74 +/- 0.40 5.50 +/- 1.24 1.66 +/- 0.39 0.03 +/- 0.01 18.80 +/- 1.20 2.80 +/- 1.06 2.40 +/- 0.46 3.30 +/- 0.81 A5-1

TABLE A-5. In-House "Duplicate" Samples Concentration (pCVL)a Averaged Lab Code Date Analysis First Result Second Result Result MI-1926, 1927 MI-1926, 1927 SWU-2010, 2011 DW-10376, 10377 AP-2479, 2480 DW-10395, 10396 LW-2181, 2182 LW-2181, 2182 CW-2437, 2438 CW-2437. 2438 MI-1947, 1948 AP-2458, 2459 DW-10409, 10410 MI-2052, 2053 MI-2052, 2053 AP-2711, 2712 W-938, 939 SS-2202, 2203 SS-2202, 2203 F-2307, 2308 DW-10476, 10477 W-2244, 2245 DW-10509, 10510 SW-2690, 2691 SO-2903, 2904 SO-2903, 2904 SO-2903, 2904 DW-10562, 10563 DW-10578, 10579 SO-2861, 2862 SO-2861, 2862 SL-2819, 2820 SL-2819, 2820 SL-2819, 2820 SL-2840, 2841 SL-2840, 2841 SL-2840, 2841 MI-2971, 2972 MI-2971, 2972 DW-10603, 10604 SS-3037, 3038 MI-3124, 3125 MI-3208, 3209 LW-3250, 3251 3/26/2002 3/26/2002 3/26/2002 3/27/2002 3/28/2002 3129/2002 3/31/2002 3/31/2002 3/31/2002 3/31/2002 4/1/2002 411/2002 4/1/2002 4/3/2002 4/3/2002 4/3/2002 4/9/2002 4/9/2002 4/912002 4/10/2002 4/12/2002 4/15/2002 4/17/2002 4/24/2002 4/24/2002 4/24/2002 4/24/2002 4/24/2002 4/29/2002 4/30/2002 4/30/2002 5/1/2002 5/1/2002 5/1/2002 5/1/2002 5/1/2002 5/1/2002 5/5/2002 5/5/2002 5/6/2002 5/912002 5/13/2002 5/14/2002 5/15/2002 K-40 Sr-90 Gr. Beta Gr. Beta Be-7 Gr. Alpha Gr. Beta H-3 Gr. Beta H-3 K-40 Be-7 Gr. Alpha K-40 Sr-90 Be-7 Ni-63 Gr. Beta K-40 K-40 Gr. Alpha Gr. Beta Gr. Alpha Gr. Beta Be-7 Cs-137 K-40 Gr. Alpha Gr. Alpha Cs-137 K-40 Be-7 Gr. Beta K40 Be-7 Gr. Beta K-40 K-40 Sr-90 Gr. Alpha K-40 K-40 K-40 Gr. Beta 1414.00 +/- 115.00 2.30 +/- 0.70 2.90 +/- 0.60 10.50 +/- 1.30 0.064 +/- 0.023 10.20 +/- 2.10 2.98 +/- 0.68 2694.43 +/- 156.53 1.09 +/- 0.61 6456.70 +/- 229.20 1421.40 +/- 130.90 0.077 +/- 0.011 39.30 +/- 4.00 1283.70 +/- 103.20 0.81 +/- 0.36 0.071 +/- 0.01 1.73 +/- 0.10 5.83 +/- 1.16 5.75 +/- OA8 2.75 +/- 0.27 5.10 +/- 1.30 1.70 +/- 1.10 6.00 +/- 2.00 2.25 +/- 0.68 1.22 +/- 0.57 0.13 +/- 0.05 21.06 +/- 1.48 2.17 +/- 1.13 8.20 +/- 2.20 236.40 +/- 46.00 10191.00 +/- 784.60 805.70 +/- 301.50 5566.00 +/- 124.00 5524.00 +/- 632.90 1010.00 +/- 352.10 4399.00 +/- 221.80 2422.80 +/- 352.10 1338.90 +/- 83.44 0.83 +/- 0.47 6.30 +/- 1.70 11585.00 +/- 749.00 1329.50 +/- 103.80 1494.60 +/- 158.40 3.14 +/- 0.55 1316.00 +/- 128.00 2.40 +/- 0.70 2.20 +/- 0.50 10.10 +/- 1.50 0.068 14.60 1.99 2688.84 1.14

+/-0.014

+ 2.40

+/- 0.70

+/- 156.40

+/- 0.58 6292.80 +/- 226.52 1256.80 +/- 104.20 0.081 +/- 0.010 35.30 +/- 3.60 1434.80 +/- 147.90 0.75 +/- 0.35 0.07 +/- 0.01 1.82 +/- 0.10 5.52 +/- 1.19 6.11 +/-0.51 2.49 +/- 0.32 3.90 +/- 1.60 1.60 +/- 1.00 7.30 +/- 1.80 2.15 +/- 0.59 0.78 +/- 0.43 0.09 +/- 0.05 19.91 +/- 1.16 3.25 +/- 1.54 7.40 +/- 2.00 200.70 +/- 52.60 11025.00 +/- 941.30 860.73 +/- 164.80 5359.00 +/- 122.00 5277.50 +/- 431.40 872.95 +/- 181.70 4593.00 +/- 276.00 2254.10 +/- 371.40 1345.80 +/- 100.90 1.65 +/- 0.46 5.50 +/- 1.60 11612.00 +/- 787.00 1373.00 +/- 107.40 1462.60 +/- 182.50 3.28 +/- 0.63 1365.00 +/- 86.04 2.35 +/- 0.49 2.55 +/- 0.39 10.30 +/- 0.99 0.066 +/- 0.013 12.40 +/- 1.59 2.48 +/- 0.49 2691.64 +/- 110.64 1.11 +/-0.42 6374.75 +/- 161.12 1339.10 +/- 83.65 0.079 +/- 0.008 37.30 +/- 2.69 1359.25 +/- 90.17 0.78 +/- 0.25 0.07 +/- 0.01 1.78 +/- 0.07 5.67 +/- 0.83 5.93 +/- 0.35 2.62 +/- 0.21 4.50 +/- 1.03 1.65 +/- 0.74 6.65 +/- 1.35 2.20 +/- 0.45 1.00 + 0.36 0.11 +/- 0.04 20.48 +/- 0.94 2.71 +/- 0.96 7.80 +/- 1.49 218.55 +/- 34.94 10608.00 +/- 612.71 833.22 +/- 171.80 5462.50 +/- 86.98 5400.75 +/- 382.97 941.48 +/- 198.11 4496.00 +/- 177.04 2338.45 +/- 255.89 1342.35 +/- 65.47 1.24 +/- 0.33 5.90 +/- 1.17 11598.50 +/- 543.22 1351.25 +/- 74.68 1478.60 +/- 120.83 3.21 +/- 0.42 A5-2

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result CF-3292, 3293 MI-3376, 3377 MI-3418, 3419 SWT-3461,3462 S0-3503, 3504 S0-3503,3504 S0-3503, 3504 SL-3545, 3546 SL-3545, 3546 DW-10754,10755 SW-3777, 3778 SW-3777, 3778 MI-3798, 3799 LW-3924, 3925 MI-3966, 3967 MI-3966, 3967 MI-3987, 3988 MI-4095,4096 SWU-4221,4222 LW-4179,4180 G-4329,4330 G-4329,4330 G-4329, 4330 SL-4337, 4338 SL-4337, 4338 SL-4337, 4338 SL-4337, 4338 AP-4864, 4865 MI-4359,4360 AP-4569,4570 AP-4843,4844 AP-4789,4790 SWU-4810,4811 MI-4548, 4549 DW-4737,4738 MI-4632,4633 MI-5054, 5055 G-5075,5076 SWU-5124, 5125 G-5151, 5152 G-5151, 5152 MI-5103, 5104 LW-5434, 5435 MI-5215, 5216 5/20/2002 5/26/2002 5/28/2002 5/28/2002 5/29/2002 5/29/2002 5/29/2002 6/3/2002 6/3/2002 6/6/2002 6/11/2002 6/11/2002 6/11/2002 6/13/2002 6/18/2002 6/18/2002 6/19/2002 6/25/2002 6/25/2002 6/27/2002 7/1/2002 7/11/2002 7/1/2002 7/1/2002 7/1/2002 7/1/2002 7/1/2002 7/1/2002 7/2/2002 7/2/2002 7/2/2002 7/3/2002 7/3/2002 7/9/2002 7/12/2002 7/15/2002 7/30/2002 7/30/2002 7/30/2002 7/31/2002 7131/2002 8/2/2002 8/5/2002 8/7/2002 K-40 K-40 K-40 Gr. Beta Cs-137 Gr. Beta K-40 Gr. Beta K-40 Sr-90 Gr. Alpha Gr. Beta K-40 Gr. Beta K-40 Sr-90 Sr-90 K-40 Gr. Beta Gr. Beta Be-7 Gr. Beta K-40 Be-7 Cs-1 37 Gr. Beta K-40 Be-7 K-40 Be-7 Be-7 Be-7 Gr. Beta K-40 1-131 K-40 K-40 Gr. Beta Gr. Beta Be-7 K-40 K-40 Gr. Beta K-40 1.33 +/- 0.99 1333.30 +/- 159.40 1423.70 +/- 121.30 2.65 +/- 0.54 0.17 +/- 0.04 27.72 +/- 2.26 20.24 +/- 1.19 4436.00 +/- 90.00 4684.20 +/- 734.40 0.50 +/- 0.30 4.42 +/- 1.50 7.57 +/- 1.22 1433.40 +/- 124.20 3.05 +/- 0.59 1245.20 +/- 109.20 2.38 +/- 0.51 0.98 +/- 0.35 1256.10 +/- 138.20 6.89 +/- 1.97 2.37 +/- 0.58 1394.80 +/- 538.40 8.10 +/- 0.27 7758.20 +/- 1100.00 1480.90 +/- 223.80 32.30 +/- 14.70 5262.40 +/- 522.10 2249.00 +/- 381.90 0.085 +/- 0.009 1390.10 +/- 168.30 0.068 +/- 0.016 0.077 +/- 0.016 0.080 +/- 0.013 2.40 +/- 0.84 1511.80 +/- 127.00 0.52 +/- 0.20 1198.40 +/- 114.10 1428.80 +/- 105.60 7.11 +/-0.07 1.75 +/- 0.84 1.82 +/- 0.30 5.13 +/- 0.66 1415.90 +/- 70.57 2.77 +/- 0.35 1361.10 +/- 111.90 1.14 +/- 0.91 1090.70 +/- 143.40 1443.30 +/- 164.30 3.28 +/- 0.60 0.18 +/- 0.05 25.45 +/- 2.03 20.54 +/- 1.24 4281.00 +/- 89.00 5242.50 +/- 884.50 0.60 +/- 0.30 2.97 +/- 1.40 6.83 +/- 1.16 1401.20 +/- 96.96 3.38 1340.20 2.63 0.97 1199.00 5.38 2.00 1098.10 8.00

+/- 0.72

+/- 121.90

+/- 0.52

+/- 0.35

+/- 128.30

+/- 1.93

+/- 0.62

+/- 437.40

+/- 0.25 1.23 +/- 0.67 1212.00 +/- 107.21 1433.50 +/- 102.11 2.97 +/- 0.40 0.18 +/- 0.03 26.58 +/- 1.52 20.39 +/- 0.86 4358.50 +/- 63.29 4963.35 +/- 574.82 0.55 +/- 0.21 3.70 i 1.02 7.20 i 0.84 1417.30 +/- 78.78 3.21 +/- 0.46 1292.70 i 81.83 2.51 i 0.36 0.98 i 0.25 1227.55 +/- 94.29 6.13 +/- 1.38 2.19 +/- 0.42 1246.45 +/- 346.84 8.05 +/- 0.18 8079.00 +/- 720.00 1603.65 +/- 298.10 41.64 +/- 15.42 5347.40 +/- 375.56 2619.45 +/-318.41 0.085 +/- 0.006 1478.75 i 128.53 0.077 +/- 0.012 0.084 +/- 0.013 0.079 +/- 0.010 2.43 +/- 0.61 1479.30 +/- 81.38 0.51 +/- 0.18 1284.85 +/- 93.00 1386.55 +/- 74.95 7.05 +/- 0.05 1.82 +/- 0.57 1.93 +/- 0.22 5.42 +/- 0.48 1419.85 +/- 73.61 2.52 +/- 0.25 1359.70 +/- 80.52 8399.80 +/- 929.30 1726.40 +/- 552.60 50.97 +/- 27.10 5432.40 +/- 540.00 2989.90 +/- 509.60 0.085 +/- 0.006 1567.40 +/- 194.30 0.086 +/- 0.018 0.090 +/- 0.020 0.078 +/- 0.015 2.47 +/- 0.88 1446.80 +/- 101.80 0.49 +/- 0.29 1371.30 +/- 146.90 1344.30 +/- 106.40 6.99 i 0.07 1.90 +/- 0.78 2.05 +/- 0.32 5.72 +/- 0.70 1423.80 +/- 129.20 2.26 +/- 0.35 1358.30 +/- 115.80 A5-3

TABLE A-5. In-House "Duplicate" Samples Concentration (pCi/L)a Averaged Lab Code Date Analysis First Result Second Result Result MI-5355, 5356 F-5413, 5414 F-5413, 5414 MI-5603, 5604 Mi-5603, 5604 MI-5578, 5579 VE-5682, 5683 VE-5682, 5683 VE-5682, 5683 WW-6188, 6189 SL-5724, 5725 SL-5724, 5725 SL-5724, 5725 MI-5877, 5878 MI-6157, 6158 MI-6258, 6259 LW-6278, 6279 MI-6385. 6386 BS-6453, 6454 BS-6453, 6454 SO-6478, 6479 SO-6478, 6479 SO-6478, 6479 S0-6478, 6479 SO-6478, 6479 AP-6641, 6642 MI-6544, 6545 AP-6857, 6858 AP-6857, 6858 AP-6857, 6858 BS-6620, 6621 BS-6620, 6621 BS-6620, 6621 MI-6651, 6652 G-6760, 6761 G-6760, 6761 SWU-7054, 7055 U-7126, 7127 XW-7768, 7769 XW-7768, 7769 F-7148, 7149 BS-7337, 7338 BS-7337, 7338 BS-7337, 7338 S0-7407, 7408 SO-7407, 7408 SO-7407, 7408 8/13/2002 8/15/2002 8/15/2002 8/26/2002 8/26/2002 8/27/2002 8/28/2002 8/28/2002 8/28/2002 8/31/2002 9/3/2002 9/3/2002 9/3/2002 9/9/2002 9/19/2002 912412002 9/30/2002 10/1/2002 10/1/2002 10/1/2002 10/1/2002 10/1/2002 10/1/2002 10/1/2002 10/1/2002 10/1/2002 10/2/2002 10/3/2002 10/3/2002 10/3/2002 10/7/2002 10/7/2002 10/7/2002 10/8/2002 10/9/2002 10/9/2002 10/10/2002 10/11/2002 10/14/2002 10/14/2002 10/15/2002 10/23/2002 10/23/2002 10/23/2002 10/29/2002 10/29/2002 10/29/2002 K-40 Gr. Beta K-40 1-131 K-40 K-40 Be-7 Gr. Beta K-40 Gr. Beta Be-7 Cs-137 K-40 K-40 K-40 K-40 Gr. Beta K-40 Cs-1 37 K-40 Cs-1 37 Gr. Alpha Gr. Beta K-40 Sr-90 Be-7 K-40 Be-7 Be-7 Be-7 Co-60 Cs-1 37 K-40 K-40 Be-7 K-40 Gr. Beta Gr. Beta Cs-137 H-3 K-40 Co-60 Cs-1 37 Gr. Beta Cs-137 Gr. Beta K-40 1405.00 +/- 165.80 2.37 +/- 0.10 1.47 +/- 0.32 0.64 +/- 0.34 1353.60 +/- 83.13 1301.50 +/- 161.70 0.29 +/- 0.10 3.79 +/- 0.08 3 06 +/- 0.29 2.70 +/- 0.57 0.92 +/- 0.19 0.05 +/- 0.02 2.09 +/- 0.31 1340.70 +/- 165.00 1372.10 +/- 115.10 1328.60 +/-201.00 2.15 +/- 0.51 1297.10 +/- 168.90 0.43 +/- 0.03 16.50 +/- 0.51 0.074 +/- 0.016 8.01 +/- 4.36 30.41 +/- 4.07 19.82 i 0.53 0.087 +/- 0.017 0.070 +/- 0.016 1331.60 +/- 125.20 0.062 i 0.015 0.062 +/- 0.015 0.062 +/- 0.015 0.090 +/- 0.020 0.62 +/- 0.04 11.38 +/- 0.48 1565.50 +/- 141.00 2.17 +/- 0.49 6.24 +/- 1.00 3.09 +/- 0.57 2.61 +/- 1.24 2.25 +/- 0.25 2.63 +/- 0.10 2.57 +/- 0.28 0.083 +/- 0.025 0.082 +/- 0.019 12.54 +/- 2.34 0.14 +/- 0.03 16.73 +/- 2.21 12.05 +/- 0.61 1549.30 +/- 114.40 2.55 +/- 0.10 1.73 i 0.43 0.52 +/- 0.36 1261.40 +/- 117.80 1381.60 i 111.20 0.25 +/- 0.11 3.80 +/- 0.08 3.31 +/-0.42 2.30 +/- 0.57 1.04 +/- 0.23 0.05 +/- 0.02 2.28 +/- 0.48 1168.50 +/- 172.50 1136.50 i222.70 1312.60 i 118.60 1.70 i 0.50 1310.10 +/- 128.30 0.44 +/- 0.03 16.80 +/- 0.61 0.070 +/- 0.016 7.55 i 4.57 33.04 i4.28 20.39 i 0.58 0.094 i 0.020 0.080 i 0.015 1326.50 +/- 171.60 0.071 i0.015 0.071 i0.015 0.071 i0.015 0.11 +/-0.02 0.63 i 0.03 10.78 i 0.52 1640.60 i 189.20 2.31 i 0.34 6.61 i 0.60 2.06 +/- 0.52 2.61 i 1.08 2.09 i 0.18 2.64 +/- 0.10 2.98 i 0.44 0.073 +/- 0.031 0.11 +/- 0.04 12.99 +/- 2.22 0.15 +/- 0.03 16.62 +/- 2.27 12.27 +/- 0.81 1477.15 +/- 100.72 2.46 +/- 0.07 1.60 +/- 0.27 0.58 +/- 0.25 1307.50 +/- 72.09 1341.55 +/- 98.12 0.27 +/- 0.08 3.79 +/- 0.06 3.18 +/- 0.25 2.50 +/- 0.41 0.98 +/- 0.15 0.05 +/- 0.01 2.19 +/- 0.29 1254.60 +/- 119.35 1254.30 +/- 125.34 1320.60 +/- 116.69 1.93 i 0.36 1303.60 i 106.05 0.44 i 0.02 16.65 i 0.40 0.072 i 0.011 7.78 +/- 3.16 31.73 +/- 2.95 20.10 +/- 0.39 0.091 +/- 0.013 0.075 +/- 0.011 1329.05 +/- 106.21 0.066 +/- 0.010 0.066 +/- 0.010 0.066 +/- 0.010 0.10 +/- 0.01 0.62 i 0.02 11.08 i 0.35 1603.05 i 117.98 2.24 i 0.30 6.42 i 0.58 2.57 +/- 0.39 2.61 +/- 0.82 2.17 +/- 0.15 2.64 +/- 0.07 2.77 +/- 0.26 0.078 +/- 0.020 0.10 +/- 0.02 12.77 +/- 1.61 0.15 +/- 0.02 16.67 +/- 1.58 12.16 +/- 0.51 A5-4

TABLE A-5. In-House 'Duplicate" Samples Concentration (pCIL)a Averaged Lab Code Date Analysis First Result Second Result Result MI-7428, 7429 10/29/2002 K-40 1542.60 +/- 213.00 1355.80 +/- 185.70 1449.20 +/- 141.29 pw-7621, 7622 10/30/2002 Gr. Beta 2.22 +/- 0.92 2.08 +/- 0.83 2.15 +/- 0.62 TD-7653, 7654 10/31/2002 H-3 11122.00 +/- 387.00 11259.00 +/- 390.00 11190.50 +/- 274.71 SW-7569, 7570 11/5/2002 Gr. Beta 15.90 +/- 1.25 16.24 +/- 1.27 16.07 +/- 0.89 SW-7569,7570 11/5/2002 K-40 14.79 +/- 1.48 14.79 +/- 1.48 14.79 +/- 1.05 SO-8010, 8011 11/7/2002 Cs-137 0.11 +/-0.02 0.11 +/- 0.03 0.11 +/- 0.02 SO-8010, 8011 11/7/2002 K-40 6.91 +/- 0.54 7.21 +/- 0.54 7.06 +/- 0.38 VE-7747, 7748 11/11/2002 Gr. Beta 3.59 +/- 0.05 3.25 +/- 0.05 3.42 +/- 0.03 VE-7747, 7748 11/11/2002 K-40 3.17 +/- 0.36 3.26 +/- 0.46 3.22 +/- 0.29 Ml-7789, 7790 11113/2002 K-40 1319.30 +/- 167.60 1301.20 +/- 140.70 1310.25 +/- 109.41 DW-8082, 8083 11/29/2002 1-131 0.83 +/- 0.24 0.98 +/- 0.22 0.90 +/- 0.16 SW-8054, 8055 12/212002 Gr. Beta 2.60 +/- 0.46 2.21 +/- 0.39 2.41 +/- 0.30 SW-8054, 8055 12/2/2002 K-40 1.44 +/- 0.14 1.43 +/- 0.14 1.44 +/- 0.10 MI-8105, 8106 12/4/2002 K-40 1300.60 +/- 111.30 1315.40 +/- 108.90 1308.00 +/- 77.86 TD-8298, 8299 12/5/2002 H-3 355.00 +/- 94.00 469.00 +/- 99.00 412.00 +/- 68.26 MI-8396, 8397 12/17/2002 K-40 1409.20 +/- 117.30 1449.60 +/- 108.60 1429.40 +/- 79.93 SWT-8654, 8655 12/30/2002 Gr. Beta 1.63 +/- 0.50 1.40 +/- 0.47 1.51 +/- 0.34 AP-8783, 8784 12/31/2002 Be-7 0 044 +/- 0.009 0.042 i 0.008 0.043 +/- 0.006 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).

A5-5

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

Concentrationb Known Control Lab Code Type Date Analysis Laboratory result Activity Limitsc STW-939 water 12/01/01 Am-241 1.25 +/- 0.0 1.19 +/- 0.0 0.83 - 1.6 STW-939 water 12/01/01 Co-57 138.9 +/- 0.5 143 +/- 14.3 100.1 - 185.9 STW-939 water 12/01/01 Co-60 139.1 +/- 0.5 141 +/- 14.1 98.7 - 183.3 STW-939 water 12/01/01 Cs-134 25.16 +/-0.2 28.5 +/-0.3 19.95 -37.1 STW-939 water 12/01/01 Cs-1 37 279.96 +/- 0.9 286 +/- 28.6 200.2 -371.8 STW-939d water 12/01/01 Fe-55 19.68 +/- 23.2 9.2 +/- 0.9 6.44 - 12.0 STW-939 water 12/01/01 Mn-54 253.64 +/- 0.9 246 +/- 0.2 172.2 -319.8 STW-939 water 12/01/01 Ni-63 65.88 +/- 1.9 88.3 +/- 8.8 61.81 - 114.8 STW-939' water 12/01/01 Pu-238 0.060 +/- 0.01 0.0 +/- 0.0 STW-939 water 12/01/01 Pu-239/40 2.79 +/- 0.0 2.99 i 0.3 2.09 - 3.9 STW-939 water 12/01/01 Sr-90 4.88 +/- 0.3 4.8 +/- 0.5 3.36 - 6.2 STW-939 water 12/01/01 U-233/4 0.89 +/- 0.0 0.98 +/- 0.1 0.69 - 1.3 STW-939 water 12/01/01 U-238 6.75 +/- 0.0 7.8 +/- 0.8 5.46 - 10.1 STW-939 water 12/01/01 Zn-65 70.6 +/- 1.1 67.3 +/- 6.7 47.11 - 87.5 STSO-955 soil 10/16/02 Am-241 40.54 +/- 2.7 43.5 +/- 4.4 30.45 - 56.6 STSO-955 soil 10/16/02 Co-57 210.58 +/- 2.0 246 +/- 24.6 172.2 - 319.8 STSO-955 soil 10/16/02 Co-60 84.38 +/- 0.9 87.5 +/- 8.8 61.25 - 113.8 STSO-955 soil 10/16/02 Cs-134 692.6 +/- 2.1 862 +/- 86.0 603.4 - 1120.6 STSO-955 soil 10/16/02 Cs-137 96.98 +/- 1.7 111 +/- 11.1 77.7 - 144.3 STSO-955 soil 10/16/02 Fe-55 1714.6 +/- 299.6 1870 +/- 187.0 1309 - 2431.0 STSO-955 soil 10/16/02 Mn-54 509.74 +/- 3.4 546 +/- 54.6 382.2 - 709.8 STSO-955 soil 10/16/02 Ni-63 890.6 +/- 22.4 1180 +/- 118.0 826 - 1534.0 STSO-955 soil 10/16/02 Pu-238 34.04 +/- 6.0 33.3 +/- 3.3 23.31 - 43.3 STSO-955 soil 10/16/02 Pu-239/40 68.7 +/- 3.7 72.9 +/- 7.3 51.03 - 94.8 STSO-955e soil 10/16/02 Sr-90 1.5 +/- 3.0 0.0 +/- 0.0 STSO-955 soil 10/16/02 U-233/4 166.33 +/- 3.8 229 +/- 22.9 160.3 -297.7 STSO-955 soil 10/16/02 U-238 169.76 +/- 3.8 220 +/- 22.0 154 - 286.0 STSO-955 soil 10/16/02 Zn-65 783.59 +/- 6.4 809 +/- 80.9 566.3 - 1051.7 a 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 All results are in Bq/kg or Bq/L as requested by the Department of Energy.

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

c Known activity below the laboratory LLD. The sample was recounted for 2000 minutes; result: 11.52 + 5.55 Bq /L e Included in the testing series as a "false positive". No activity expected.

A6-1

TABLE A-7. Environmental Measurements Laboratory Quality Assessment Program (EML)

Concentration" EML Control Lab Code Type Date Analysis Laboratory results Resultb Limitsc STW-945 Water 03/01/02 Am-241 1.68 +/- 0.14 1.47 0.79 - 1.41 STW-945 Water 03/01/02 Co-60 349.20 +/- 2.60 347.33 0.80 - 1.20 STW-945 Water 03/01/02 Cs-1 34 3.40 +/- 0.60 3.36 0.80 - 1.30 STW-945 Water 03/01/02 Cs-1 37 57.20 +/- 1.70 56.07 0.80 - 1.22 STW-945 Water 03101/02 Pu-238 0.45 +/- 0.11 0.49 0.74 - 1.20 STW-945 Water 03101/02 Pu-239/40 4.47 +/- 0.28 4.22 0.79 - 1.20 STW-945 Water 03/01/02 Sr-90 7.40 +/- 1.30 7.58 0.69 - 1.34 STW-945 Water 03/01/02 Uranium 3.27 +/- 0.43 2.84 0.75 - 1.33 STW-946 Water 03/01102 Gr. Alpha 265.40 +/- 7.70 375.00 0.58 - 1.29 STW-946 Water 03/01102 Gr. Beta 930.60 +/- 12.00 1030.00 0.61 - 1.43 STW-946 Water 03/01/02 H-3 226.30 +/- 32.70 283.70 0.78 - 2.45 STSO-947 Soil 03/01/02 Ac-228 55.00 +/- 5.50 51.17 0.80 - 1.38 STSO-947 Soil 03/01/02 Am-241 8.30 +/- 3.30 10.93 0.65 - 2.28 STSO-947 Soil 03/01/02 Bi-212 49.20 +/- 12.40 53.43 0.50 - 1.34 STSO-947 Soil 03/01/02 Bi-214 46.60 +/- 3.10 53.93 0.78 - 1.42 STSO-947 Soil 03/01/02 Cs-1 37 1401.60 +/- 9.10 1326.67 0.80 - 1.25 STSO-947 Soil 03/01/02 K-40 613.10 +/- 28.10 621.67 0.80 - 1.32 STSO-947 Soil 03/01/02 Pb-212 51.60 +/- 2.60 51.10 0.78 - 1.32 STSO-947 Soil 03/01/02 Pb-214 52.00 +/- 3.60 54.37 0.76 - 1.46 STSO-947 Soil 03/01/02 Pu-239/40 14.70 +/- 3.50 19.10 0.71 - 1.30 STSO-947 Soil 03/01/02 Sr-90 52.10 +/- 6.30 53.76 0.67 - 2.90 STSO-947 Soil 03/01/02 Th-234 122.40 +/- 6.30 89.30 0.63 - 2.35 STSO-947 Soil 03/01/02 Uranium 143.40 +/- 9.40 194.77 0.71 - 1.32 STVE-948 Vegetation 03/01/02 Am-241 3.10 +/- 2.20 2.23 0.73 - 2.02 STVE-948 Vegetation 03/01/02 Cm-244 0.90 +/- 0.80 1.32 0.61 - 1.59 STVE-948 Vegetation 03/01/02 Co-60 13.50 +/- 2.10 11.23 0.80 - 1.44 STVE-948 Vegetation 03/01/02 Cs-137 350.40 +/- 6.30 313.67 0 80 - 1.31 STVE-948 Vegetation 03/01/02 K-40 940.80 +/- 45.60 864.33 0.79 - 1.39 STVE-948d Vegetation 03/01/02 Pu-239140 16.90 +/- 0.70 3.54 0.69 - 1.31 STVE-948 Vegetation 03/01/02 Sr-90 543.40 +/- 24.90 586.28 0.55 - 1.21 STAP-949 Air Filter 03/01/02 Am-241 0.09 +/- 0.05 0.09 0.70 - 2.34 STAP-949 Air Filter 03/01/02 Co-60 30.10 +/- 0.30 30.52 0.80 - 1.26 STAP-949 Air Filter 03/01/02 Cs-1 37 29.90 +/- 0.30 28.23 0.80 - 1.32 STAP-949 Air Filter 03/01/02 Mn-54 40.40 +/- 0.40 38.53 0.80 - 1.35 STAP-949 Air Filter 03/01/02 Pu-238 0.05 +/- 0.02 0.06 0.67 - 1.33 STAP-949 Air Filter 03/01/02 Pu-239/40 0.15 +/- 0.02 0.19 0.73 - 1.26 STAP-949 Air Filter 03/01/02 Sr-90 3.40 +/- 0.40 4.83 0.53 - 1.84 STAP-949 Air Filter 03/01/02 Uranium 0.80 +/- 0.20 0.61 0.79 - 2.10 STAP-950 Air Filter 03/01/02 Gr. Alpha 0.43 +/- 0.04 0.53 0.73 - 1.43 STAP-950 Air Filter 03/01/02 Gr. Beta 1.34 +/- 0.05 1.30 0.76 - 1.36 STW-959 Water 09/01/02 Am-241 3.00 +/- 0.10 3.04 0.79 - 1.41 STW-959 Water 09/01/02 Co-60 258.40 +/- 2.30 268.67 0.80 - 1.20 STW-959 Water 09/01/02 Cs-134 50.80 +/- 3.30 60.20 0.80 - 1.30 STW-959 Water 09/01/02 Cs-137 80.10 +/- 0.30 81.43 0.80 - 1.22 STW-959 Water 09/01/02 Cs-137 80.10 +/- 0.30 81.A3 0.80 - 1.22 STW-959 Water 09/01/02 Am-241 3.00 +/- 0.10 3.04 0.79 - 1.41 A7-1

TABLE A-7. Environmental Measurements Laboratory Quality Assessment Program (EML)3.

Concentrationb EML Control Lab Code Type Date Analysis Laboratory results Resultc Limitsd STW-959 Water 09/01/02 Am-241 3.00 +/- 0.10 3.04 0.79 - 1.41 STW-959 Water 09/01/02 Co-60 258.40 +/- 2.30 268.67 0.80 - 1.20 STW-959 Water 09101102 Cs-134 50.80 +/- 3.30 60.20 0.80 - 1.30 STW-959 Water 09101/02 Cs-137 80.10 +/- 0.30 81.43 0.80 - 1.22 STW-959 Water 09101/02 H-3 271.90 +/- 20.90 227.30 0.78 - 2.45 STW-959 Water 09/01/02 Pu-238 4.40 +/- 0.20 4.33 0.74 - 1.20 STW-959 Water 09/01/02 Pu-239/40 2.10 +/- 0.10 2.07 0.79 - 1.20 STW-959 Water 09/01/02 Sr-90 9.70 +/- 0.20 8.69 0.69 - 1.34 STW-959 Water 09/01/02 Uranium 5.60 +/- 0.10 6.84 0.75 - 1.33 STW-960 Water 09/01/02 Gr. Alpha 204.90 +/- 3.20 210.00 0.58 -1.29 STW-960 Water 09/01/02 Gr. Beta 852.00 +/- 26.50 900.00 0.61 -1.43 STSO-961 Soil 09/01/02 Ac-228 47.60 +/- 1.90 42.30 0.80 - 1.38 STSO-961 Soil 09/01102 Am-241 7.80 +/- 1.40 6.77 0.65 - 2.28 STSO-961 Soil 09/01/02 Bi-212 45.60 +/- 1.70 45.93 0.50 - 1.34 STSO-961e Soil 09101102 Bi-214 48.80 +/- 4.90 33.63 0.78 - 1.42 STSO-961 Soil 09/01/02 Cs-137 819.60 +/- 16.60 829.33 0.80 - 1.25 STSO-961 Soil 09/01/02 K-40 705.30 +/- 31.40 637.67 0.80 - 1.32 STSO-961 Soil 09/01/02 Pb-212 48.60 +/- 3.40 43.43 0.78 - 1.32 STSO-961 Soil 09/01/02 Pb-214 51.10 +/- 5.10 35.20 0.76 - 1.46 STSO-961' Soil 09/01/02 Pu-239140 20.20 +/- 0.80 12.90 0.71 - 1.30 STSO-961 Soil 09/01/02 Sr-90 38.50 +/- 0.10 41.16 0.67 -2.90 STSO-961 Soil 09/01/02 Uranium 58.90 +/- 0.70 87.21 0.71 - 1.32 STVE-962 Vegetation 09/01/02 Am-241 2.10 +/- 0.30 2.25 0.73 - 2.02 STVE-962 Vegetation 09/01/02 Cm-244 1.00 +/- 0.30 1.25 0.61 - 1.59 STVE-962 Vegetation 09/01/02 Co-60 11.80 +/- 1.50 9.66 0.80 - 1.44 STVE-962 Vegetation 09/01/02 Cs-1 37 340.30 +/- 16.80 300.67 0.80 - 1.31 STVE-962 Vegetation 09/01/02 K-40 1646.00 +/- 74.40 1480.00 0.79 -1.39 STVE-962 Vegetation 09/01/02 Pu-239140 3.00 +/- 0.30 3.43 0.69 - 1.31 STVE-962 Vegetation 09/01/02 Sr-90 345.60 +/- 97.80 476.26 0.55 - 1.21 STAP-9639 Air Filter 09/01/02 Am-241 0.20 +/- 0.01 0.19 0.70 - 2.34 STAP-963 Air Filter 09/01/02 Co-60 24.90 +/- 0.60 23.00 0.80 - 1.26 STAP-963 Air Filter 09/01/02 Cs-1 37 38.00 +/- 1.30 32.50 0.80 - 1.32 STAP-963 Air Filter 09/01/02 Mn-54 60.80 +/- 1.90 52.20 0.80 - 1.35 STAP-9639 Air Filter 09/01/02 Pu-238 0.11 +/- 0.02 0.12 0.67 - 1.33 STAP-9639 Air Filter 09/01/02 Pu-239140 0.21 +/- 0.01 0.21 0.73 - 1.26 STAP-963 Air Filter 09/01/02 Sr-90 5.20 +/- 0.20 5.56 0.53 - 1.84 STAP-9639 Air Filter 09/01/02 Uranium 0.41 +/-0.04 0.47 0.79 - 2.10 STAP-964 Air Filter 09101/02 Gr. Alpha 0.40 +/- 0.10 0.29 0.73 - 1.43 STAP-964 Air Filter 09/01/02 Gr. Beta 0.80 +/- 0.10 0.87 0.76 - 1.36 a Results are reported in Bq/L with the following exceptions: Air Filters (Bq/Filter), Soil and Vegetation (Bq/kg) b The EML result listed is the mean of replicate determinations for each nuclide +/- the standard error of the mean C Control limits are reported by EML as the ratio of Reported Value / EML value.

d An error was found In the conversion from pCi/g to Bq/g. Corrected result: 2.84 +/- 0.59 Bq/g eNaturally-occurring radium daughters are present in the shield background, and a probable cause of the higher bias seen for isotopes of lead and bismuth.

' Reporting error.The average result of the triplicate analyses was 14.1+/- 5.7 Bqlkg 9 STAP-963, Calculations for the transuranics analyses (Am-24 1, Uranium, Pu-238, -239/40) were not converted to Bq/total filter.

The data listed is the result of recalculation.

A7-2

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

Appendix C 2002 Individual Sample Results Page C-1